CN111720066A

CN111720066A - Pile machine

Info

Publication number: CN111720066A
Application number: CN201910211590.5A
Authority: CN
Inventors: 周兆弟
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-20
Filing date: 2019-03-20
Publication date: 2020-09-29
Anticipated expiration: 2039-03-20
Also published as: CN111720066B

Abstract

A pile machine, comprising: a base (600); the drill rod system (610) is arranged on the base (600) and comprises an extension rod mechanism (613), and the extension rod mechanism (613) comprises at least one extension rod (6131); the pressure holding system (620) drives the drill rod system to move up and down; it is characterized by also comprising: the storage rack (630) is arranged on the base (600) and used for storing the extension bar (6131); the grabbing mechanism (640) is arranged on the storage rack (630) and used for grabbing the extension bar (6131); and the output end of the driving mechanism (650) is in transmission connection with the grabbing mechanism (640) and is used for driving the grabbing mechanism (640) to move to the upper part of the lengthening rod mechanism (613), so that the grabbed lengthening rod (6131) is connected to the lengthening rod mechanism (613). Compared with the prior art, the pile machine can realize quick extension of the rod, so that the efficiency is improved.

Description

Pile machine

Technical Field

The invention belongs to the technical field of buildings, and particularly relates to a pile machine.

Background

The pile machine is a mechanical equipment capable of driving a drill bit to drill underground to further crush rock soil, the soil body is improved by grouting while the drill bit drills, and the improved soil body can be used for forming stirring piles, composite piles and the like.

The pile machine includes multisection drilling rod and drill bit, and the drilling rod is equipped with the defeated material passageway that supplies concrete thick liquid to pass through that is linked together axially in drilling rod and the drill bit, when the drill bit bore to certain degree of depth, if the length of drilling rod is not enough, need increase or extend the drilling rod, makes the drilling rod extension, just can continue to bore. Therefore, in order to ensure normal grouting and drilling operations, the extension technique of the drill rod is important. In the prior art, the extension mode of the drill rod comprises two modes: 1. telescopic connection; 2. the bolt type connection.

For telescopic connection, please refer to the invention patent application CN201610941633.1, the telescopic drill rod (application publication No. CN106401464A), which discloses a drill rod comprising a drill rod mechanism and a drill bit mechanism fixed at the end of the drill rod mechanism, wherein the drill rod mechanism can reciprocate along the axial direction to change the length of the drill rod mechanism, thereby forming a telescopic drill rod, which can automatically drill downwards without applying external force, reducing the time for connecting the drill rod, and is convenient and fast to use. However, the drill rod structure has the following problems: the sealing performance of the joints of all the telescopic drill rods is poor, and the telescopic sections are large in size, large in soil squeezing amount, difficult to extend out underground and large in resistance.

The bolt type connection refers to the invention patent of a material conveying pipeline mechanism of a power underlying drill rod (the publication number of the patent is CN106351216B) with the application number of CN201610938624.7, and the disclosed mechanism sequentially comprises a length adjusting rod, a power mechanism and a drill rod from top to bottom, wherein the power mechanism is in driving connection with the drill rod and can drive the drill rod to rotate along the circumferential direction; power unit and length adjustment pole between link to each other through plug-in type connection structure, this plug-in type connection structure include respectively with power unit and length adjustment pole spiro union fixed first connecting block and second connecting block, during first connecting block inserts the second connecting block, first connecting block and for the second connecting block pin joint structure fixed connection just be hollow intubate passageway in the middle of the plug-in type connection structure behind first connecting block and the second connecting block fixed connection. The pin joint structure comprises a first pin hole positioned on the first connecting block and a second pin hole positioned on the second connecting block, when the first connecting block is inserted into the second connecting block, the first connecting block or the second connecting block can be rotated to enable the positions of the first pin hole and the second pin hole to correspond, and the pin bolt is inserted into the first pin hole from the outside of the second pin hole to enable the first connecting block and the second connecting block to be in pin joint fixation.

Plug-in type connection structure in the above-mentioned patent connects promptly and can realize the connection and the dismantlement of many length control poles, and then the length of convenient regulation length control pole. But has the following disadvantages: 1. the connector is in threaded connection with the length adjusting rod, so that the bolt holes in the connector are difficult to align; 2. the bolt hole and the bolt have high precision requirement; 3. the joints on the two length adjusting rods are difficult to align; 4. the length adjusting rod is of a hollow structure, the wall thickness of the length adjusting rod is generally thin, and as the joint is in threaded connection with the length adjusting rod, an internal thread needs to be formed on the length adjusting rod, so that the wall thickness of the joint of the length adjusting rod and the joint is thinner, and the connection strength is reduced; 5. the joint is in threaded connection with the length adjusting rod, and the shape of the joint and the length adjusting rod is limited to be circular, so that the shape and the processing precision are higher; slurry leakage may occur at the plug pin; 7. when the connecting structure is used for a rotary drilling machine, shearing can occur at the bolt, so that the bolt is broken.

When the plug-in type connecting structure is adopted to extend the drill rod, a length adjusting rod which is prepared in advance needs to be placed on the pile machine, and then the length adjusting rod is connected with the power mechanism.

Disclosure of Invention

The invention aims to solve the technical problem of providing a pile machine which can realize quick extension of a rod and further improve the efficiency aiming at the current situation of the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: a pile machine, comprising:

a machine base;

the drill rod system is arranged on the base and comprises a drill bit mechanism, a power mechanism for driving the drill bit mechanism to rotate and an extension rod mechanism arranged above the drill bit mechanism, wherein the extension rod mechanism comprises at least one extension rod;

also includes:

the storage rack is used for storing the extension bar;

the grabbing mechanism is arranged on the storage rack and used for grabbing the extension bar;

the driving mechanism is arranged on the storage rack, the output end of the driving mechanism is in transmission connection with the grabbing mechanism, and the driving mechanism is used for driving the grabbing mechanism to move to the upper part of the lengthening rod mechanism and connecting the grabbed lengthening rod to the lengthening rod mechanism.

As an improvement, the grabbing mechanism comprises at least two first clamping blocks which are opened and closed to loosen or clamp the extension bar, and a first oil cylinder or a first air cylinder which drives the first clamping blocks to be opened and closed.

In order to enable the grabbing mechanism to grab the extension bar more flexibly and align the extension bar with the extension bar mechanism, the grabbing mechanism is improved to further comprise a mounting block, a second oil cylinder and a mounting seat, wherein the first oil cylinder or the first air cylinder is arranged on the mounting block, the mounting seat is in transmission connection with the output end of the driving mechanism, the second oil cylinder is arranged on the mounting seat, and a push rod of the second oil cylinder is connected with the mounting block to drive the mounting block to move up and down;

or, the grabbing mechanism further comprises an installation block, a second cylinder and an installation seat, the first oil cylinder or the first cylinder is arranged on the installation block, the installation seat is in transmission connection with the output end of the driving mechanism, the second cylinder is arranged on the installation seat, and a push rod of the second cylinder is connected with the installation block to drive the installation block to move up and down. Thus, the extension bar can move up and down under the driving of the grabbing mechanism so as to be connected to the extension bar mechanism.

The further improvement is that the driving mechanism comprises a third oil cylinder or a third air cylinder, the third oil cylinder or the third air cylinder is arranged on the storage rack, and a push rod of the third oil cylinder or a push rod of the third air cylinder is fixedly connected with the mounting seat so as to drive the grabbing mechanism to move.

In the scheme, the device also comprises a holding and pressing system for driving the drill rod system to move up and down along the vertical direction; the pressure holding system comprises a pressure holding box which can move up and down on the machine base along the vertical direction; the first pressure holding driving mechanism is arranged on the base and is in transmission connection with the pressure holding box so as to drive the pressure holding box to move up and down; the second holding and pressing driving mechanism drives the holding and pressing box to close and hold the extension bar tightly and opens and releases the extension bar; the extension bar is convexly provided with a holding pressing block matched with the holding pressing box. So, realize that extension bar mechanism reciprocates in vertical direction.

In order to further facilitate the installation or the disassembly of the extension bar, it is preferable that the top of the machine base is provided with a claw mechanism with an openable claw part, and the claw mechanism is detachably connected with the top end of the extension bar mechanism. Therefore, when the extension bar is installed, the top end of the extension bar can be connected to the claw mechanism and then connected with the extension bar mechanism, and therefore alignment and installation are facilitated.

In order to facilitate installation and realize concrete circulation, it is preferable that the jaw mechanism is provided with a concrete hole for concrete circulation, one end of the concrete hole is used for being communicated with the grout conveying pipe, and the other end of the concrete hole is communicated with a pipeline in the lengthening rod mechanism. Therefore, when the pile machine works, the claw mechanism can be always fixed at the top end of the lengthening rod mechanism for simultaneous operation; when the lengthening bar mechanism needs to be lengthened, the claw mechanism is detached from the lengthening bar mechanism, and then the lengthening bar on the grabbing mechanism is reconnected, so that the lengthening of the lengthening bar mechanism and the normal circulation of concrete are realized.

Further preferably, the pile machine further comprises a winch, and the claw mechanism is lifted through the winch; the clamping jaw mechanism and the clamping box are arranged on the pressure box rail at the same time. When the lengthening bar mechanism needs to be lengthened, the claw mechanism is detached from the lengthening bar mechanism and then ascends along the pressure holding box rail under the traction of the winch so as to connect the lengthening bar on the grabbing mechanism. And the pressure holding box rail can ensure that the pressure holding box and the clamping jaw mechanism lift along the vertical direction, so as to ensure that the extension rod mechanism moves vertically.

The improvement, first armful presses actuating mechanism including vertical fourth hydro-cylinder or the fourth cylinder of locating on the frame, the push rod of fourth hydro-cylinder or the push rod of fourth cylinder with embrace and press the case and link to each other to the drive is embraced and is pressed the case and move up and down.

Finally, because extension bar mechanism's length is longer, if need drive extension bar mechanism and drill bit mechanism simultaneously and rotate, need provide great drive power, so, in order to reduce the energy consumption, and guarantee extension bar mechanism's straightness that hangs down, the improvement is, power unit sets up between drill bit mechanism and extension bar mechanism to direct drive drill bit mechanism rotates. And the power mechanism arranged between the drill bit mechanism and the extension bar mechanism can not influence the extension or the shortening of the extension bar mechanism, thereby being convenient for the installation and the disassembly of the extension bar.

Compared with the prior art, the invention has the advantages that: the storage frame for storing the extension bar, the grabbing mechanism for grabbing the extension bar and the driving mechanism for driving the grabbing mechanism to move are arranged on the base, so that the extension bar to be installed can be placed on the storage frame and can be moved and installed on the extension bar mechanism through the grabbing mechanism and the driving mechanism, the extension bar is convenient to install and disassemble quickly, the time for moving the extension bar to a pile machine in the prior art is saved, and the installation efficiency is improved; when the lengthening bar mechanism needs to be shortened after the operation is finished, the disassembled lengthening bar can be directly placed on the storage rack through the grabbing mechanism and the driving mechanism, so that the lengthening bar mechanism can be conveniently and directly grabbed and used next time; according to the invention, the storage rack for storing the extension bar is directly arranged on the base, so that the extension bar can be conveniently stored, the moving distance of the extension bar can be reduced, the installation efficiency is improved, the extension bar mechanism generally needs to be prolonged for many times in the whole operation of the pile machine, and the extension bar mechanism is shortened after the operation is finished, so that the time for prolonging the extension bar can be greatly saved, and the operation efficiency is greatly improved.

By arranging the gripping mechanism on the storage rack, the position of the gripping mechanism relative to the storage rack cannot be changed, which means that the gripping mechanism at the "predetermined position" moves the extension bar at the "predetermined position" to the predetermined mounting position, so as to avoid the position offset of the extension bar during the movement.

In addition, because the grabbing mechanism is arranged on the storage rack, the grabbing mechanism only needs to move in two directions, so that the position deviation of the extension bar in the moving process is further avoided.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of another view according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a storage rack, a gripping mechanism and a driving mechanism according to an embodiment of the present invention;

FIG. 4 is a schematic view of the storage rack, the gripping mechanism and the driving mechanism from another perspective according to the embodiment of the present invention;

FIG. 5 is a view showing a state in which the extension bar is stored in the storage rack according to the embodiment of the present invention;

FIG. 6 is an enlarged view of portion B of FIG. 1;

FIG. 7 is a schematic view of the embodiment of the present invention showing the structure of the jaw mechanism when the extension bar is caught;

FIG. 8 is an enlarged view of portion A of FIG. 1;

FIG. 9 is a schematic structural view of an extension bar according to an embodiment of the present invention;

FIG. 10 is a schematic structural view of a first joint according to an embodiment of the present invention;

fig. 11 is a schematic structural view of the embodiment of the present invention after two extension bars are connected.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 11, a pile driver according to a preferred embodiment of the present invention includes a base 600, a drill rod system 610, a holding and pressing system 620, a storage rack 630, a gripping mechanism 640, a driving mechanism 650, and a winch 680.

The drill rod system 610 is disposed on the base 600, the drill rod system 610 includes a drill mechanism 611, a power mechanism 612 for driving the drill mechanism 611 to rotate, and an extension rod mechanism 613 disposed above the power mechanism 612 (in this embodiment, the power mechanism 612 is disposed between the drill mechanism 611 and the extension rod mechanism 613 for directly driving the drill mechanism 611 to rotate, or disposed on the extension rod mechanism 613 for driving the extension rod mechanism 613 and the drill mechanism 611 to rotate simultaneously), and the extension rod mechanism 613 includes at least one extension rod 6131.

As shown in fig. 9 to 11, in order to facilitate extension or shortening of the extension bar mechanism 613, the extension bar 6131 is configured as follows: the drill rod sealing device comprises a drill rod body 7, a first connector 1 connected with the lower end part of the drill rod body 7, a second connector 2 connected with the upper end part of the drill rod body 7, a connecting sleeve 4 sleeved on the first connector 1 and a sealing element 3, wherein the sealing element 3 comprises a first sealing ring 31, a second sealing ring 32 and a third sealing ring 33.

The drill rod body 7 is of a rod-shaped structure, and a pipeline 6132 for flowing of pipeline media (concrete) is arranged in the drill rod body along the axial direction. And at least one pressure holding block 624 for receiving external acting force to move the drill rod body 7 up and down is convexly arranged on the drill rod body 7. Meanwhile, the inner wall of the drill rod body 7 is of a square structure (of course, other structures such as a circle and a polygon can be adopted).

The first connector 1 and the second connector 2 are respectively inserted and connected through the matching of the jack and the plug, and specifically comprise:

the first joint 1 comprises a first joint body 10 and a support ring 5, a first through hole 100 is axially arranged in the first joint body 10, a first port 101 of the first through hole 100 is used for inserting a plug 21 on the second joint 2, and a second port 102 corresponds to a pipeline 6132 in the drill rod body 7 and is used for circulating a pipeline medium; the first through hole 100 includes in order along the insertion direction: a first guiding section 100a, a calibration section 100b and a flow-through section 100c, wherein the aperture of the first guiding section 100a is gradually reduced along the insertion direction for the plug 21 on the second connector 2 to slide in (i.e. the aperture of the first insertion surface 111 of the first guiding section 100a is gradually reduced along the insertion direction); the alignment section 100b is engaged with the small-diameter end of the first guiding section 100a, and is used for defining the insertion position of the plug 21 on the second connector 2, i.e. the first guiding section 100a and the alignment section 100b are jacks for inserting the plug 21; the flow-through section 100c is connected to the calibration section 100b for communicating with the second through hole 200 in the second joint 2 in a state where the second joint 2 is inserted into the first joint 1, for the flow-through of the pipe medium.

But integrated into one piece between support ring 5 and first joint body 10, also can be connected through removable connected mode such as buckle formula, for improving joint strength in this embodiment, and be convenient for loading and unloading, the connection structure between above-mentioned support ring 5 and first joint body 10 is: a first step is arranged on the outer side wall of the lower end part (i.e. the end part corresponding to the position of the first port 101) of the first joint body 10 in a circumferential concave manner, the first step is provided with a first horizontal plane parallel to the lower end surface of the first joint body 10 and a first vertical plane perpendicular to the first horizontal plane, and an external thread is arranged on the first vertical plane. Above-mentioned support ring 5 cover is established on first step, its vertical cross-section is the L type, including vertical connecting portion and horizontal supporting part, connecting portion cover establish on first step and have with thread fit's internal thread, in order to connect body 10 threaded connection with first, and after support ring 5 assembles first step, the top surface butt of the connecting portion of support ring 5 is on first horizontal plane, in order to carry on spacingly, the lateral wall of connecting portion links up with the lateral wall of first joint body 10 mutually, the supporting part hoop is protruding to be established on first joint body 10, in order to form spacing step.

Because the support ring 5 is in threaded connection with the first joint body 10, in order to prevent the support ring 5 and the first joint body 10 from rotating relatively, in the embodiment, half threaded holes are formed in the external threads of the first joint body 10, the same half threaded holes are correspondingly formed in the internal threads of the support ring 5, after the support ring 5 is connected to the first joint body 10, the two half threaded holes form complete threaded holes for inserting the screws 9, and after the screws 9 are inserted, the support ring 5 can be effectively prevented from rotating relatively to the first joint body 10. In this embodiment, the half threaded holes on the external thread and the internal thread are two, and are uniformly distributed, and of course, only one or more half threaded holes may be provided, or other rotation stopping structures may be adopted, as long as the support ring 5 can be positioned on the first joint body 10 to prevent relative rotation between the two.

Simultaneously, because first joint 1, peg graft through the cooperation realization of jack and plug between the second connects 2, consequently, both still can be along circumferential direction after plug 21 inserts the jack, in order to prevent both rotations, this embodiment is equipped with half locating hole on the external screw thread of first joint body 10, it is equipped with same half locating hole to correspond on the internal thread of support ring 5, after support ring 5 is connected to first joint body 10, two half locating holes form the complete locating hole that supplies the one end male of locating pin, can effectively prevent after the insertion of locating pin one end first, the second connects 1, 2 relative rotations. In this embodiment, the semi-positioning holes on the external thread and the internal thread are two and uniformly distributed, and of course, only one or more semi-positioning holes or other positioning structures are used, so long as the second connector 2 can be positioned on the first connector 1 to prevent relative rotation of the first connector and the second connector.

The connection structure between the first joint body 10 and the drill rod body 7 is as follows: the upper end portion of the first joint body 10 (i.e., the end portion corresponding to the position of the second port 102) is generally circular in cross section and is inserted into the drill rod body 7; in order to facilitate the machining and ensure the precision, a cutting surface matched with the inner wall of the drill rod body 7 is formed on the outer side wall of the upper end part of the first joint body 10, one or more welding holes 15 are formed in the cutting surface, and the welding holes 15 are used for filling welding flux to enable the first joint body 10 to be welded and fixed on the drill rod body 7. In practice, the first joint body 10 and the drill rod body 7 can be connected by means of a submerged welding method. Of course, the connection structure between the first joint body 10 and the drill rod body 7 is not limited to welding, and may be connected by other means such as screwing. Meanwhile, the outer diameter of the upper end of the first joint body 10 is large to form a step structure with the middle of the first joint body 10, so that an i-shaped structure with two large ends and a small middle is formed between the upper end, the middle and the support ring 5 on the lower end of the first joint body 10.

In order to reduce the weight of the first connector body 10, the present embodiment is provided with at least one lightening hole 16 for reducing the weight on the first connector body 10 in the axial direction, and each lightening hole 16 is separated from the first through hole 100.

Meanwhile, the lower end surface of the first joint body 10 is provided with an accommodating groove 17 which is coaxially distributed with the first through hole 100, the accommodating groove 17 is communicated with the large-caliber end of the first guide section 100a, and the caliber of the accommodating groove 17 is larger than that of the first guide section 100a so as to receive the falling pipeline medium.

The connecting sleeve 4 is sleeved on the first joint body 10 and can move up and down in the middle of the first joint body 10, and specifically, the connecting sleeve 4 includes a body 40, a first connecting portion and a second connecting portion. The body 40 is a tubular structure with two open ends, and a first opening 40a of the body is used for inserting the first joint body 10, and a second opening 40b of the body is used for inserting the second joint 2. The first connecting portion is disposed on the body 40 near the first opening 40a, and includes a flange 44 protruding from the inner wall of the body 40, the flange 44 is of a ring structure circumferentially distributed along the inner wall of the body 40, and extends inward along the radial direction of the body 40, and is used for being supported on the support ring 5 of the first joint 1, and can move up and down between the support ring 5 and the upper end portion of the first joint body 10 (i.e., the middle portion of the first joint body 10), so as not to slide off the first joint 1. And the end surface of the body 40 corresponding to the first opening 40a is provided with a step 45 for accommodating the first sealing ring 31 (the first sealing ring 31 is arranged on the step 45 corresponding to the first joint 1 and surrounds the first joint 1 for sealing the first joint 1 and the connecting sleeve 4). The second connecting portion can be in threaded connection with the outer side wall of the second connector 2 including threads 41 arranged on the inner wall of the body 40, and for preventing the second connector 2 from rotating relative to the inner wall of the body 40, a rotation stopping structure is arranged on the body 40 and comprises a threaded hole 42 formed in the body 40 and used for allowing a locking screw 43 to pass through, and the locking screw 43 can abut against the outer side wall of the second connector 2 after passing through the threaded hole 42 so as to prevent the second connector 2 from rotating relative to the body 40. In order to facilitate the rotation of the body 40, the body 40 is connected to the second connector 2, at least one tool hole 46 for inserting a tool such as a wrench to rotate the body 40 is formed in an outer wall of the body 40, and the tool hole 46 is not communicated with an inner wall of the body 40.

In order to realize that the connecting sleeve 4 slides on the first joint 1 and always keeps a sealing state with the first joint 1, the structure of the first sealing ring 31 on the connecting sleeve 4 plays an important role, in the embodiment, the first sealing ring 31 comprises a first sealing part and a second sealing part which are integrally connected with each other, the first sealing part is supported on a step 45 of the connecting sleeve 4 and is in sealing connection with the connecting sleeve 4, the second sealing part is sleeved on the first joint 1 and is in sealing fit with the first joint 1, the second sealing part is integrally in a hook-shaped structure with an opening back to the first joint 1, the second sealing part comprises a connecting end connected with the first sealing part and a free end which can rotate relative to the connecting end under the action of external force, and the free end is arranged towards the direction of the second joint 2. In this embodiment, in order to further improve the leakproofness, still be provided with the rebound piece (select for use the spring coil) on the first sealing washer 31, the hoop is equipped with the spring ditch that is used for holding the spring coil on the inboard of second sealing portion, and this spring coil holding is in the spring ditch for the second sealing portion has the trend of drawing close to first joint 1 all the time, and further seals first joint 1. When the first sealing ring 31 axially moves along the direction from the first joint 1 to the second joint 2, the sealing part on the second sealing part, which is matched with the first joint 1, always has the tendency of reverse movement to form compaction sealing, so that the sealing part is always in sealing fit with the first joint 1 in the moving process; when the first sealing ring 31 moves reversely, the second sealing portion can move along the first joint 1, so that the second sealing portion does not have large resistance and is convenient to move, and when the first sealing ring 31 moves reversely, the second sealing portion is always attached to the first joint 1 to form sealing.

As shown in fig. 11, the second joint 2 includes a second joint body 20 and a plug 21 protruding from the second joint body 20, the second joint body 20 and the plug 21 have a second through hole 200 axially penetrating therethrough, one end of the second through hole 200 close to the plug 21 is used for communicating with the first joint 1, and the other end of the second through hole 200 is used for corresponding to a pipe 6132 in the drill pipe body 7 so as to allow a pipe medium to flow therethrough; the plug 21 corresponds to the shape of the jack and comprises a second guide section 21a and a positioning section 21b, wherein the second guide section 21a is positioned at the tail part of the plug 21, the caliber of a second plugging surface of the second guide section is gradually reduced towards the head part direction of the plug 21, and the second guide section is used for adjusting the position of the first connector 1 on the second connector 2; the positioning section 21b is located at the head of the plug 21 and engages with the small end of the second guiding section 21a to define the position of the first connector 1 on the second connector 2. Thus, when the plug 21 is plugged into the jack, the plug 21 slides in along the first guiding section 100a in the jack to realize the matching of the positioning section 21b on the plug 21 and the calibration section 100b in the jack, and after the two are plugged into each other, the second through hole 200 on the plug 21 is communicated with the flow section 100c of the first through hole 100 in the first connector 1 to allow the medium of the pipeline to flow. In the embodiment, the second guiding section 21a of the plug 21 is of a truncated cone structure as a whole; the positioning section 21b is a columnar structure coaxially distributed with the second guiding section 21a, and the caliber of the plugging surface of the positioning section corresponds to the caliber of the small-end port in the second guiding section 21 a. The shape of the first guide section 100a and the alignment section 100b in the receptacle match the shape of the second guide section 21a and the alignment section 21b, respectively, in the plug 21.

Because the second guide section 21a and the first guide section 100a are of a truncated cone structure, the two guide sections have better sealing effect when being pressed tightly. However, in order to further improve the sealing performance, in this embodiment, at least one annular groove for accommodating the third sealing ring 33 is circumferentially provided on the plug 21, specifically: two (or one, three or more) first annular grooves for accommodating the third sealing ring I33 a to realize compaction sealing with the jack are axially distributed on the second guide section 21a of the plug 21; two second ring grooves used for containing a second third sealing ring 33b to realize vertical sealing with the insertion hole are axially distributed on the positioning section 21 b. Each first third sealing ring 33a is sleeved on the first ring groove, each second third sealing ring 33b is sleeved on the second ring groove, and after the plug 21 with the third sealing ring 33 is inserted into the jack, the compaction sealing and the vertical sealing of the plug 21 and the jack can be better realized simultaneously, so that the pipeline medium is prevented from flowing out from a gap between the plug 21 and the jack during operation to cause slurry leakage.

In the embodiment, in order to further ensure the sealing performance between the plug 21 and the jack, the first joint 1 provided with the third sealing ring 33 is inserted into the second joint 2, and in a state that the first joint and the second joint are in sealing fit with each other, a gap X is formed between the opposite end surfaces of the first joint 1 and the second joint 2, the height of the gap X is more than or equal to 1mm, and the gap X leaves a space for compaction deformation of the third sealing ring I33 a; there is also a space Y between the end face of the plug 21 opposite the socket.

When the first joint 1 and the second joint 2 are separated, a small amount of pipeline media can fall out from the first joint 1, in order to receive the small amount of pipeline media which fall off and not influence the sealing connection between the first joint 1 and the second joint 2, at least one first accommodating groove 213 for receiving the pipeline media which fall off from the first joint 1 is concavely arranged on the second inserting surface of the second guide section 21a of the plug 21, and each first accommodating groove 213 is axially distributed between two adjacent annular grooves; and the end surface of the second joint body 20 on which the plug 21 is convexly arranged is concavely provided with at least one second accommodating groove for receiving the pipeline medium falling from the first joint 1. The dropped small amount of pipe medium enters the first accommodating groove 213 near the positioning section 21b, and after the first accommodating groove 213 is filled with the medium, the medium enters the first accommodating groove 213 of the next stage, and finally enters the second accommodating groove on the second joint body 20. It should be noted that the first and second joints 1 and 2 are cleaned after use, and the first and second receiving grooves and the receiving groove 17 in the first joint 1 are all only preventive and generally there are not much pipe media. The purpose of providing the accommodation groove 17 in the first joint 1 is: avoid the pipeline medium to stay in the first, the second holding tank of second joint 2, the pipeline medium that appears in the first, the second holding tank of second joint 2 is difficult to the abluent condition.

Meanwhile, the second joint body 20 is provided with a limiting hole into which the other end of the positioning pin can be inserted, one end of the positioning pin is inserted into the first joint 1, and the limiting hole is formed in the end face, opposite to the first joint 1, of the second joint body 20. And, similarly to the first connector 1, in order to reduce the weight of the second connector 2, at least one lightening hole 25 for reducing the weight is axially provided on the second connector body 20 in the present embodiment, and each lightening hole 25 is spaced apart from the second through hole 200. Meanwhile, in order to facilitate the pipe 6132 in the drill rod body 7 to be inserted into the second through hole 200, the other end of the second through hole 200 has a step structure with a large and small hole diameter towards the head direction of the plug 21, and the step structure is used for inserting the pipe 6132 in the drill rod body 7.

The connection structure between the second joint body 20 and the drill rod body 7 is as follows: the cross section of the lower end part of the second joint body 20 (i.e. the end of the second joint body 20 far away from the plug 21) is overall circular, and the second joint body is inserted into the drill rod body 7; and also for convenience of processing and accuracy assurance, the outer side wall of the lower end portion of the second joint body 20 is formed with a cutting surface that fits the inner wall of the drill rod body 7, the cutting surface being provided with one or more welding holes 26, the welding holes 26 being filled with a flux to weld the second joint body 20 to the drill rod body 7. Of course, the second connector body 20 may also be detachably connected to the drill rod body 7 by a screw connection, a snap connection, or the like.

In order to be connected with the connecting sleeve 4 by screw thread, the outer side wall of the upper end portion of the second joint body 20 (i.e. the end of the second joint body 20 close to the plug 21) is provided with an external thread 27 for assembling the connecting sleeve 4, and the outer side wall of the second joint body 20 is provided with an abutting groove 28 for abutting the locking screw 43, the abutting groove 28 is located below the external thread 27, and the locking screw 43 can abut against the abutting groove 28 after passing through the threaded hole 42 on the connecting sleeve 4. In this embodiment, a retaining ring 23 is circumferentially disposed between the abutting groove 28 and the lower end portion of the second joint body 20, and the second sealing ring 32 (a conventional O-ring is selected) is disposed on the retaining ring 23 and is configured to form a sealing fit with an end surface of the body 40 of the connecting sleeve 4 corresponding to the second opening 40b, that is, after the second joint body 20 is in threaded connection with the connecting sleeve 4, the second sealing ring 32 is in sealing connection with the second joint body 20 and the connecting sleeve 4. And under the state that the lower end of the second joint body 20 is inserted into the drill rod body 7, the retainer ring 23 is supported on the end face of the drill rod body 7 to limit the insertion position, and the outer diameter of the retainer ring 23 is larger than that of the drill rod body 7, so that the retainer ring 23 is exposed on the drill rod body, and thus, the retainer ring 23 can also be matched with a jaw mechanism 660 on the pile machine to be clamped by the jaw mechanism 660.

The process of connecting the first joint 1 and the second joint 2 is as follows: fix with locating pin after pegging graft first joint 1 and second joint 2, then rotatory adapter sleeve 4 for adapter sleeve 4 moves towards the direction that second joint 2 belonged to realize with 2 threaded connection of second joint, then screw up locking screw 43, make locking screw 43 support on second joint 2, finally realize first, second joint 1, 2 connect fixedly, make two adjacent extension bars can connect, lengthened the length of extension bar mechanism. When the first joint 1 and the second joint 2 need to be disassembled, the locking screw 43 is firstly unscrewed, then the connecting sleeve 4 is rotated reversely, and after the connecting sleeve 4 is separated from the second joint 2, the positioning pin is taken down, so that the second joint 2 can be pulled out from the first joint 1 to realize the separation of the first joint and the second joint.

Of course, the connection mode between two adjacent extension bars in the pile machine of the present invention is not limited to the above-described mode, and the extension bars may be connected by other modes such as a pin type connection, as long as the connection and the detachment of the extension bars can be realized.

The holding and pressing system 620 is arranged on the base 600, the holding and pressing system 620 is used for driving the drill rod system 610 to move up and down along the vertical direction, and specifically, the holding and pressing system 620 comprises a holding and pressing box 621 capable of moving up and down along the vertical direction on the base 600; a first holding and pressing driving mechanism 622 which is arranged on the machine base 600 and is in transmission connection with the holding and pressing box 621 so as to drive the holding and pressing box 621 to move up and down; and a second clasping and pressing driving mechanism 623 which drives the clasping and pressing box 621 to close and clasp the extension bar 6131 and opens and releases the extension bar 6131. Wherein, be equipped with along vertical direction on the frame 600 and embrace pressure case track 625 (should embrace pressure case track 625 and set up to the people's ladder structure that can supply the people to climb), embrace pressure case 621 and set up on this embraces pressure case track 625 to can move up and down along embracing pressure case track 625. The first clasping and pressing driving mechanism 622 comprises a fourth oil cylinder or a fourth air cylinder vertically arranged on the base 600, and a push rod of the fourth oil cylinder or a push rod of the fourth air cylinder is connected with the clasping and pressing box 621 so as to drive the clasping and pressing box 621 to move up and down. The second clasping pressure driving mechanism 623 also comprises a hydraulic or pneumatic cylinder or adopts a driving mode such as a motor gear and the like, as long as the second clasping pressure driving mechanism can drive the clasping pressure box 621 to open or close. The extension bar 6131 is convexly provided with a holding press block 624 matched with the holding press box 621, the holding press box 621 is matched with the holding press block 624 on the extension bar 6131, when the holding press box 621 is closed, the holding press block 624 is held by the holding press box 621, and the extension bar mechanism 613 connected with the holding press block 624 can be driven to move up and down; when the holding and pressing box 621 moves downwards to the lower limit position and cannot drive the extension bar mechanism 613 to move downwards continuously, the holding and pressing box 621 is opened to release the holding and pressing block 624, and then the holding and pressing box 621 moves upwards alone and holds the holding and pressing block 624 above and drives the extension bar mechanism 613 connected with the holding and pressing block 624 to move downwards continuously.

As shown in fig. 2 to 5, the storage rack 630 is disposed on the base 600 or on one side of the base 600, the storage rack 630 is used for storing the extension bar 6131, the grabbing mechanism 640 is disposed on the storage rack 630, and the grabbing mechanism 640 is used for grabbing the extension bar 6131; the output end of the driving mechanism 650 is connected to the grabbing mechanism 640 in a transmission manner, the driving mechanism 650 is disposed on the storage rack 630, and the driving mechanism 650 is used to drive the grabbing mechanism 640 to move to the upper side of the extension bar mechanism 613, and connect the grabbed extension bar 6131 to the extension bar mechanism 613. In this embodiment, to shorten the moving stroke of the extension bar, the storage rack 630 is disposed at the upper position of the base 1 corresponding to the extension bar mechanism 613, after the pressure holding box 621 drives the extension bar mechanism 613 to move downward to the lower limit position, a space for the extension bar 6131 to access is left between the extension bar mechanism 613 and the top of the base 600, and the storage rack 630 is disposed at one side of the space, so that the extension bar 6131 on the storage rack 630 can move into the space with a short distance. In this embodiment, the extension bar 6131 is vertically disposed on the storage rack 630, and the structure supporting the extension bar 6131 on the storage rack 630 sequentially includes an upper fixing assembly 634, a drill rod moving assembly 633, a lower fixing assembly 632 and a roller 631 from top to bottom, wherein the upper fixing assembly 634 and the lower fixing assembly 632 are correspondingly disposed up and down and respectively provided with a plurality of (three from left to right in this embodiment) to fix the plurality of extension bars 6131; each upper fixing component 634 is distributed at intervals from left to right and comprises at least two upper clamping blocks 6341 and an oil cylinder 6342 for driving the upper clamping blocks 6341 to open and close, the extension bar 6131 can pass through the upper clamping blocks 6341 when the upper clamping blocks 6341 are opened, and the extension bar 6131 can be clamped when the upper clamping blocks 6341 are closed. Each lower stationary component 632 is structurally identical to the upper stationary component 634. The roller 631 is disposed at the bottom of the storage rack 630, and is used for bearing the gravity of the extension bar 6131, and the extension bar 6131 moves left and right on the roller 631, so that the roller 631 is blocked by mortar such as concrete, and a gap is left between the rollers 631, so that the extension bar 6131 can be stably supported on the storage rack under the support of the upper and lower fixing components and the rollers. The drill rod moving assembly 633 is disposed between the upper fixing assembly 634 and the lower fixing assembly 632 (in this embodiment, there are two sets of drill rod moving assemblies 633, one set is disposed near the upper fixing assembly 634, and the other set is disposed near the lower fixing assembly 632) for driving the extension rod 6131 to move on the storage rack 630, the drill rod moving assembly 633 includes two sprockets 6331 disposed on the storage rack 630, a chain 6332 wound around the two sprockets 6331, at least two second clamping blocks 6333 disposed on the chain 6332, and a driving motor 6334 in transmission connection with one of the sprockets 6331, the driving motor 6334 can drive the second clamping blocks 6333 on the chain to move left and right through forward and reverse rotation, and meanwhile, the second clamping blocks 6333 are connected with an oil cylinder capable of driving the second clamping blocks 6333 to open and close.

When the leftmost extension bar is removed by the grasping mechanism 640, the extension bar 6131 is not present in the leftmost upper and lower fixing

members

634 and 632, at this time, the second clamp block 6333 of the bar moving member 633 moves to the middle extension bar and clamps the extension bar 6131 (after clamping, the upper and lower fixing members release the extension bar to allow the extension bar to move), and then, the extension bar 6131 is moved leftward to the left-most left upper and lower fixing

members

634 and 632, so that the extension bar 6131 is always present in the leftmost upper and lower fixing

members

634 and 632, and the grasping mechanism 640 can grasp the extension bar.

The grabbing mechanism 640 includes at least two first clamping blocks 6401 that open and close to loosen or clamp the extension bar 6131, and two first oil cylinders 6402 (of course, a first air cylinder may be used) that drive the first clamping blocks 6401 to open and close, in this embodiment, there are two first clamping blocks 6401 and two first oil cylinders 6402, each first clamping block 6401 is disposed on each first oil cylinder 6402, and each first oil cylinder 6402 drives the first clamping block 6401 connected to each first oil cylinder 6401 to rotate so as to open and close the two first clamping blocks 6401 to clamp or loosen the extension bar 6131. The grabbing mechanism 640 further comprises a mounting block 6403, a second oil cylinder 6404 and a mounting seat 6405, the first oil cylinder 6402 is arranged on the mounting block 6403, the mounting seat 6405 is arranged above the mounting block 6403 and is in transmission connection with the output end of the driving mechanism 650 so as to be capable of moving horizontally, the second oil cylinder 6404 is arranged on the mounting seat 6405, preferably, the second oil cylinder 6404 is vertically arranged on the mounting seat 6405, and a push rod of the second oil cylinder 6404 is connected with the mounting block 6403 so as to drive the mounting block 6403 to move up and down, so that the grabbing mechanism 640 can move left and right in the horizontal direction and move up and down in the vertical direction under the driving of the driving mechanism 650 and the second oil cylinder 6404.

In this embodiment, the driving mechanism 650 includes a third cylinder or a third air cylinder, the third cylinder or the third air cylinder is disposed on the storage rack 630, preferably, the third cylinder or the third air cylinder is disposed horizontally on the top of the storage rack 630, and a push rod of the third cylinder or a push rod of the third air cylinder is fixedly connected to the mounting seat 6405 to drive the grabbing mechanism 640 to move.

In this embodiment, in order to facilitate the connection of the extension bar 6131 to the extension bar mechanism 613 and ensure that the extension bar mechanism 613 can normally convey concrete, a claw mechanism 660 with an openable claw part is arranged on the top of the base 600, and the claw mechanism 660 is detachably connected with the top end of the extension bar mechanism 613; and the jaw mechanism 660 is provided with a concrete hole 661 for the circulation of concrete, one end of the concrete hole 661 is used for communicating with the grout pipe 670, and the other end is communicated with the pipeline 6132 in the lengthening bar mechanism 613. The pile machine further comprises a winch 680, and the claw mechanism 660 is lifted through the winch 680. The structure of the jaw mechanism 660 is as follows: the clamping jaw comprises a clamping jaw body 662 and a power source 663, the clamping jaw body 662 comprises a connecting part 662a and a claw part 662b which are connected, an inserting hole H for inserting the plug 21 of the second connector 2 is formed in the connecting part 662a, the connection, sealing and positioning between the inserting hole H and the plug 21 are similar to the connection structure between the first through hole 100 on the first connector 1 and the plug 21 on the second connector 2, details are not described herein, the inserting hole H is communicated with the other end of the concrete hole 661, and the concrete hole 661 is communicated with a pipeline 6132 in an extension bar 6131 in the state that the inserting hole H is inserted into the second connector 2, so that concrete can flow. The claw portions 662b are provided on both sides of the connecting portion 662a, connected to an output rod of the power source 663 to be opened and closed, and when the claw portions 662b are closed, the claw portions 662b abut against the retaining ring 23 of the second joint 2 to support the second joint 2 and connect the second joint 2; when the claw portion 662b is opened, the claw portion 662b is separated from the retaining ring 23 to be detached from the second joint 2.

In this embodiment, the claw mechanism 660 and the pressure holding box 621 are disposed on the pressure holding box rail 625, and the claw mechanism 660 and the pressure holding box 621 move along the pressure holding box rail 625 to maintain the verticality of the movement of the extension bar 6131.

The method for realizing the extension lengthening rod mechanism comprises the following steps: when the holding and pressing system 620 drives the drill rod system 610 to move downwards to the lower limit position and cannot drive the drill rod system 610 to move downwards continuously, the grabbing mechanism 640 grabs an extension bar 6131 from the storage rack 630, the driving mechanism 650 drives the grabbing mechanism 640 to move to the upper side of the extension bar mechanism 613, the second connector 2 on the extension bar 6131 is aligned and inserted into the inserting hole H on the jaw mechanism 660, the claw part 662b of the jaw mechanism 660 is closed at the same time to support the second connector 2, and connection of the jaw mechanism 660 and the extension bar 6131 is completed. Then, the first joint 1 at the lower end of the extension bar 6131 is connected to the second joint 2 at the upper end of the extension bar mechanism 613, so as to complete the extension of the extension bar mechanism 613.

The above is only a preferred embodiment of the present invention, and the scope of the invention is defined by the appended claims, and several modifications and amendments made by those skilled in the art without departing from the spirit and scope of the present invention should be construed as the scope of the present invention.

Claims

1. A pile machine, comprising:

a base (600);

the drill rod system (610) is arranged on the base (600) and comprises a drill bit mechanism (611), a power mechanism (612) for driving the drill bit mechanism (611) to rotate and an extension rod mechanism (613) arranged above the drill bit mechanism (611), wherein the extension rod mechanism (613) comprises at least one extension rod (6131);

it is characterized by also comprising:

a storage rack (630) for storing the extension bar (6131);

the grabbing mechanism (640) is arranged on the storage rack (630) and used for grabbing the extension bar (6131);

the driving mechanism (650) is arranged on the storage rack (630), the output end of the driving mechanism is in transmission connection with the grabbing mechanism (640) and is used for driving the grabbing mechanism (640) to move to the upper part of the lengthening bar mechanism (613), and the grabbed lengthening bar (6131) is connected to the lengthening bar mechanism (613).

2. The pile machine of claim 1, wherein: the grabbing mechanism (640) comprises at least two first clamping blocks (6401) which are opened and closed to loosen or clamp the extension bar (6131), and a first oil cylinder (6402) or a first air cylinder which drives the first clamping blocks (6401) to be opened and closed.

3. The pile machine of claim 2, wherein: the grabbing mechanism (640) further comprises a mounting block (6403), a second oil cylinder (6404) and a mounting seat (6405), the first oil cylinder (6402) or the first oil cylinder is arranged on the mounting block (6403), the mounting seat (6405) is in transmission connection with the output end of the driving mechanism (650), the second oil cylinder (6404) is arranged on the mounting seat (6405), and a push rod of the second oil cylinder (6404) is connected with the mounting block (6403) to drive the mounting block (6403) to move up and down;

or, the grabbing mechanism (640) further comprises a mounting block (6403), a second cylinder and a mounting seat (6405), the first cylinder (6402) or the first cylinder is arranged on the mounting block (6403), the mounting seat (6405) is in transmission connection with the output end of the driving mechanism (650), the second cylinder is arranged on the mounting seat (6405), and a push rod of the second cylinder is connected with the mounting block (6403) to drive the mounting block (6403) to move up and down.

4. The pile machine of claim 3, wherein: the driving mechanism (650) comprises a third oil cylinder or a third air cylinder, the third oil cylinder or the third air cylinder is arranged on the storage rack (630), and a push rod of the third oil cylinder or a push rod of the third air cylinder is fixedly connected with the mounting seat (6405) to drive the grabbing mechanism (640) to move.

5. The pile machine of claim 1, wherein: the drilling rod clamping device further comprises a holding and pressing system (620) used for driving the drilling rod system (610) to move up and down along the vertical direction; the pressure holding system (620) comprises a pressure holding box (621) which can move up and down on the base (600) along the vertical direction; the first pressure holding driving mechanism (622) is arranged on the machine base (600) and is in transmission connection with the pressure holding box (621) so as to drive the pressure holding box (621) to move up and down; and a second holding and pressing driving mechanism (623) for driving the holding and pressing box (621) to close and hold the extension bar (6131) tightly and to open and release the extension bar (6131); a pressing block (624) matched with the pressing box (621) is convexly arranged on the extension bar (6131).

6. The pile machine of claim 5, wherein: the top of the machine base (600) is provided with a claw mechanism (660) with an openable claw part, and the claw mechanism is detachably connected with the top end of the lengthening rod mechanism (613).

7. The pile machine of claim 6, wherein: the claw mechanism (660) is provided with a concrete hole (661) for concrete to flow through, one end of the concrete hole (661) is used for being communicated with the slurry conveying pipe (670), and the other end of the concrete hole is communicated with a pipeline (6132) in the lengthening rod mechanism (613).

8. The pile machine of claim 6, wherein: the clamping jaw mechanism (660) is lifted through the winch (680); the frame (600) is gone up and is equipped with along vertical direction and embrace and press case track (625), jack catch mechanism (660) with embrace and press case (621) and set up simultaneously on embracing and pressing case track (625).

9. The pile machine of claim 5, wherein: the first pressure holding driving mechanism (622) comprises a fourth oil cylinder or a fourth air cylinder which is vertically arranged on the base (600), and a push rod of the fourth oil cylinder or a push rod of the fourth air cylinder is connected with the pressure holding box (621) to drive the pressure holding box (621) to move up and down.

10. The pile machine of claim 1, wherein: the power mechanism (612) is arranged between the drill bit mechanism (611) and the extension rod mechanism (613) to directly drive the drill bit mechanism (611) to rotate.