CN113323053A

CN113323053A - Rotary pipe pile press-digging machine

Info

Publication number: CN113323053A
Application number: CN202110577984.XA
Authority: CN
Inventors: 曾昭达; 曾宪越
Original assignee: Individual
Current assignee: Guangdong Xinstable Energy Control Technology Research Co ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2021-08-31
Anticipated expiration: 2041-05-26
Also published as: CN113323053B

Abstract

The invention relates to construction equipment, in particular to a rotary pipe pile press-digging machine, which comprises a frame and a rack arranged on the frame, wherein the rack is provided with a plurality of rotary pipes which are sequentially connected along a digging direction and a rotary pipe driving mechanism which is arranged on the rack and is used for driving the rotary pipes to rotate; the drill plate device is sleeved in the coil and comprises a drill plate body, a locking mechanism arranged on the drill plate body and used for being locked with the coil, and a hole supporting mechanism arranged on the drill plate body. The coil pipe pile driver overcomes the pain points in the existing hole forming construction method of all large-diameter cast-in-place piles, and is low in energy consumption, low in pollution, high in safety degree and fast in progress in the construction process. The barrier-free construction of the large-diameter cast-in-place pile under the land full-geological condition is realized, and the enhanced type cast-in-place pile can be more used for rapid rescue of mine disasters, water construction and the like.

Description

Rotary pipe pile press-digging machine

Technical Field

The invention relates to the technical field of construction equipment, in particular to a coil pipe pile press-digging machine.

Background

The existing hole-forming construction method for the large-caliber (diameter 1M and above) cast-in-place pile comprises the following steps: manually digging holes, punching holes of a pile machine, rotatably digging holes of the pile machine, and rotatably digging holes of the pile machine by using an immersed tube. They all have their own advantages and disadvantages, which are described below in tabular form together with the swivel pipe pile driver of the present invention as follows:

as can be seen from the above table, the existing hole-forming construction method for the large-caliber cast-in-place pile has the pain points which are difficult to overcome:

1. manually digging a hole: the device is very easy to be out of service when meeting toxic gas, quicksand, high water level, silt and the like, and needs special shutdown treatment when meeting karst caves and underground rivers.

2. Forming holes by a punching pile machine: poor pore-forming quality, large concrete loss, large environmental pollution, incapability of expanding pores, and shutdown special treatment when meeting a hammer and an underground river.

3. Hole forming of the rotary excavating pile machine: the quality of the formed hole is general, certain concrete loss exists, the hole cannot be expanded, and the special shutdown treatment is needed when the hole meets the inclined rocks, the hard rocks, the larger karst caves and the underground rivers.

4. Sinking the pipe and digging the pile machine soon: the hole cannot be expanded, and the special shutdown treatment is needed when the hole meets the inclined rocks, the hard rocks, the larger karst caves and the underground rivers.

Disclosure of Invention

The invention aims to provide construction equipment for forming a hole in a large-diameter cast-in-place pile aiming at the defects in the prior art, which is mainly used for the construction of the large-diameter cast-in-place pile under the land full-geological condition, and can be used for mine disaster rescue, water construction and the like in an enhanced mode.

The purpose of the invention is realized by the following technical scheme: the application provides a coil pipe pile press-digging machine, which comprises a frame and a rack arranged on the frame, wherein the rack is provided with a plurality of coils which are sequentially connected along a digging direction and a coil pipe driving mechanism which is arranged on the rack and is used for driving the coils to rotate; the drill plate device is sleeved in the coil and comprises a drill plate body, a locking mechanism arranged on the drill plate body and used for being locked with the coil, and a hole supporting mechanism arranged on the drill plate body.

Wherein, locking mechanical system includes the telescopic dowel steel, the top portion rigid coupling of dowel steel has short column set bar, the bottom periphery side of dowel steel is equipped with the external screw thread, the bottom cover of dowel steel is equipped with the spiral rotor, be equipped with in the spiral rotor with external screw-thread fit's internal thread, first cable wire groove has been seted up to the periphery side of spiral rotor, first cable wire inslot is equipped with first steel cable and second steel cable, the end fixing of first steel cable is in first cable wire inslot, and first steel cable is around establishing in first cable wire groove, the end fixing of second steel cable is in first cable wire inslot, and second steel cable is around establishing in first cable wire groove.

The hole supporting mechanism comprises a spiral roller, a second steel cable groove is formed in the outer peripheral side of the spiral roller, a third steel cable and a fourth steel cable are arranged in the second steel cable groove, the end portion of the third steel cable is fixed in the second steel cable groove, the third steel cable is wound in the second steel cable groove, the end portion of the fourth steel cable is fixed in the second steel cable groove, and the fourth steel cable is wound in the second steel cable groove; the rotary drum is rotatably mounted within the drill plate body.

Wherein, hold in the palm hole mechanism still includes two push rods, and two push rods are installed at the both ends of spiral cylinder telescopically respectively, are equipped with the internal thread in the spiral cylinder, and the push rod is close to the tip lateral surface of spiral cylinder and offered the external screw thread with internal thread complex, and the one end fixed mounting that the spiral cylinder was kept away from to the push rod has the cutter.

Wherein the plurality of coils include a first coil at the beginning, a third coil at the end, and a second coil between the first coil and the third coil.

Wherein, second coil and first coil joint, first coupling groove has been seted up towards the tip of second coil to first coil, and the one end of second coil towards first coupling groove outwards the protrusion forms first coupling, and first coupling all is the forked tail shape setting with first coupling groove.

Wherein, during first coupling inserted first coupling groove, left the joint clearance between one side of first coupling and the cell wall of first coupling groove, be provided with the panel in the joint clearance, scalable motion's spring bolt is all installed towards the both ends of first coupling groove and first coupling to the panel, and spring bolt male card pinhole has all been seted up towards the terminal surface of spring bolt and the tank bottom of first coupling groove towards spring bolt to first coupling.

The third coil is connected with the second coil, a second pipe connecting groove is formed in the end, facing the third coil, of the second coil, a pin plate hole aligned with the second pipe connecting groove is formed in the third coil, an electric pin plate mechanism is fixedly installed on the third coil and comprises a pin plate body penetrating through the pin plate hole and inserted into the second pipe connecting groove; electric pin board mechanism still includes the electric putter of fixed mounting on the third coil, and electric putter's both ends all are provided with telescopic motion's telescopic link, and the equal rigid coupling of the tip of each telescopic link has the wedge, and the side protrusion of round pin board body orientation wedge forms the installation ear, has seted up the wedge hole in the installation ear, and the wedge hole is equipped with first inclined plane, and the tip of wedge orientation wedge hole is equipped with the second inclined plane opposite with first inclined plane incline direction.

The third coil is further provided with a pin plate resetting mechanism for driving the pin plate body to move inwards, the pin plate resetting mechanism comprises a supporting frame fixedly mounted on the third coil, the pin plate body extends out of the guide column towards the inside of the supporting frame, a resetting spring is sleeved on the outer peripheral side of the guide column, one end of the resetting spring is fixedly connected with the guide column, and the other end of the resetting spring is fixedly connected with the supporting frame.

The spiral pipe driving mechanism comprises arc sliding plates fixedly mounted on two sides inside the rack, a driving gear shaft and a driving spiral pipe, wherein the front end of the driving spiral pipe extends out of a mounting part fixedly connected with a third spiral pipe; the coil driving mechanism further comprises a driving source for driving the spindle gear shaft to rotate.

The invention has the beneficial effects that: compared with the prior art, the rotary pipe pressure pile driving machine overcomes the pain points in all the existing hole forming construction methods of large-diameter cast-in-place piles, and is low in energy consumption, low in pollution, high in safety degree and fast in progress in the construction process. The barrier-free construction of the large-diameter cast-in-place pile under the land full-geological condition is realized, and the enhanced type cast-in-place pile can be more used for rapid rescue of mine disasters, water construction and the like.

Drawings

The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.

Fig. 1 is a schematic structural view of the rotary pipe pile press-drilling machine in this embodiment.

Fig. 2 is a schematic structural view of the coil in this embodiment.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is an exploded view of the coil in this embodiment.

Fig. 5 is a schematic structural diagram of the drill chuck device in this embodiment.

Fig. 6 is a sectional view of the lock mechanism in this embodiment.

Fig. 7 is an enlarged view at C in fig. 6.

Fig. 8 is a sectional view of the hole receiving mechanism in this embodiment.

Fig. 9 is an enlarged view at B in fig. 2.

Fig. 10 is a schematic diagram of the electric pin plate mechanism in the present embodiment.

Fig. 11 is a cross-sectional view of a second coil and a third coil in this embodiment.

Fig. 12 is a schematic structural view of the rotary tube driving machine in this embodiment.

Fig. 13 is a cross-sectional view taken at a-a in fig. 12.

Fig. 14 is a cross-sectional view of the drive coil of this embodiment.

Fig. 15 is a schematic structural diagram of the driving coil in this embodiment.

Fig. 16 is a cross-sectional view at B-B in fig. 12.

Fig. 17 is a schematic structural view of the vehicle frame in the embodiment.

Fig. 18 is a schematic structural view of the hook in this embodiment.

Description of the drawings: the device comprises a frame 11, a frame 12, a coil driving mechanism 13, a coil 14, a mud pit 15, a sloping soil frame 16, a first coil 2, a first pipe connecting groove 21, a positioning block 22, a clamping hole 23, a mounting hole 24, a second coil 3, a first pipe joint 31, a positioning groove 32, a second pipe connecting groove 33, a drilling disk device 4, a drilling disk body 41, a cutter block 411, a hob mechanism 412, a soil outlet hole 413, a locking mechanism 42, a transmission rod 421, a short column lock bolt 422, a first steel cable 423, a second steel cable 424, a spiral rotor 425, a first steel cable groove 426, a push rod 431, a cutter 432, a third steel cable 433, a fourth steel cable 434, a spiral roller 435, a second steel cable groove 436, a third coil 5, a pin plate hole 51, an arc-shaped sliding plate 61, a driving tooth shaft 62, a driving coil 63, a mounting part 64, a meshing tooth 65, a sliding groove 66, a pin plate body 7, an electric push rod 71, a 72 and a wedge block 73, the device comprises a mounting lug 74, a wedge-shaped hole 75, a first inclined surface 76, a second inclined surface 77, a supporting frame 78, a guide post 79, a return spring 70, a telescopic supporting leg 81, a power wheel 82, a hanging ring 83, a hanging rod 84, a rotating motor 85, a rotating bracket 86, a telescopic mechanism 87, a first clamping ring 88, a second clamping ring 89, a panel 9 and a spring bolt 91.

Detailed Description

The invention is further described with reference to the following examples.

Referring to fig. 1, the pipe-spinning pile press-driver includes a frame 11, a frame 12 mounted on the frame 11, the frame 12 having a plurality of pipes 14 connected in sequence along a digging direction, and a pipe driving mechanism 13 mounted on the frame 12 for driving the pipes 6314 to rotate. Besides the spiral pipe pile digging machine, a mud pit 15, an inclined soil frame 16 and a hoisting mechanism are also arranged.

Referring to fig. 2 and 3, coils 14 include a first coil 2 at the beginning, a third coil 5 at the end, and a second coil 3 between the first coil 2 and the second coil 3. The second coil 3 is connected to the first coil 2 in a snap-fit manner, and the second coil 3 is connected to the second coil 3 in a snap-fit manner, for example, the first coil 2 is connected to the second coil 3 in a snap-fit manner, a first pipe connecting groove 21 is formed in the end portion of the first coil 2 facing the second coil 3, one end of the second coil 3 facing the first pipe connecting groove 21 protrudes outwards to form a first pipe joint 31, and the first pipe joint 31 and the first pipe connecting groove 21 are both in a dovetail shape. The dovetail shape design can limit the fore-aft and side-to-side degrees of freedom between the two coils. In addition, in order to limit the vertical degree of freedom between the coils, the first pipe joint 31 is inserted into the first pipe joint groove 21, a clamping gap is reserved between one side of the first pipe joint 31 and the wall of the first pipe joint groove 21, the panel 9 is arranged in the clamping gap, the two ends of the panel 9 facing the first pipe joint groove 21 and the first pipe joint 31 are both provided with spring bolts 91 capable of telescopic movement, and the end surface of the first pipe joint 31 facing the spring bolts 91 and the bottom of the first pipe joint groove 21 facing the spring bolts 91 are both provided with clamping pin holes for the spring bolts 91 to insert. It should be noted that the first coil 2 and the second coil 3, and the second coil 3 may be clamped together by the above-described installation method using the panel 9. When the panel 9 is used, the first pipe joint 31 of one coil is inserted into the first pipe joint groove 21 of the other coil, then accurate alignment is realized, one side of the first pipe joint 31 is tightly pressed with the second pipe joint groove 33, a clamping gap is formed at the moment, then the spring bolts 91 at two ends of the panel 9 are pressed, the panel 9 is inserted into the clamping gap, and after the panel 9 moves to a proper position, the spring bolts 91 can be ejected and inserted into the clamping pin holes to realize clamping. It should be noted that the heights and the number of the first pipe joint 31 and the first pipe joint groove 21 are determined by calculation, and the heights and the number of the joint recesses and projections increase when the resistance torque increases, or even the wall thickness of the pipe has to be increased. The smooth and firm connection of the joint realizes the transmission of main power, perfect pile hole wall protection, smooth penetration of the karst cave and the underground river and formation of a perfect construction space. For further accurate positioning, the first pipe joint 31 forms a positioning block 22, the bottom of the first pipe joint groove 21 forms a positioning groove 32, and the positioning block 22 and the positioning groove 32 are matched to further accurately position the two coils.

As an improvement, referring to fig. 4, a drilling disk device 4 is sleeved in the coil pipe 14, specifically, the drilling disk device 4 is directly put into the coil pipe 14, the drilling disk device 4 can move up and down along the axial direction of the coil pipe 14 under the condition that the drilling disk device 4 is not locked, and specifically, the drilling disk device 4 can be suspended continuously by a rope. The drill plate device 4 comprises a drill plate body 41, a locking mechanism 42 arranged on the drill plate body 41 and used for locking with the coil, and a hole holding mechanism arranged on the drill plate body 41.

Referring to fig. 5, the drill plate body 41 is made of high-strength steel, the middle portion of the drill plate body 41 extends upward to form a connecting portion for hanging an external hoisting device, and the connecting portion is hoisted mainly by an external hoisting mechanism, so that the drill plate device 4 is moved to a proper position. Drilling disk body 41 has still seted up a plurality of unearthing holes 413 of arranging along the radial interval of drilling disk, and unearthing hole 413 sets up mainly to be removed the dregs of output and transfer to the coil inside, not only can prevent that the dregs from hindering the excavation progress, and moreover, inside the dregs are backfilled the coil, can increase the strong structure of coil, avoid the bottom surface uplift or sink to cause the crushing to the coil. In addition, the opening sizes of the soil outlet holes 413 are gradually increased from inside to outside along the radial direction of the drilling disc, so that the muck with different particle sizes can enter the holes, and the muck can be conveniently transferred. The drill plate body 41 further comprises a plurality of cutter blocks 411 fixedly installed on the working surface of the drill plate body 41, the cutter blocks 411 are arranged at intervals along the radial direction of the drill plate body 41, in addition, a plurality of hob holes arranged at intervals along the radial direction of the drill plate body 41 are formed in the drill plate body 41, and a hob mechanism 412 is rotatably installed in each hob hole. It should be noted that the number of rows and the number of the cutter blocks 411 and the hob mechanism 412 are set according to calculation, and can be made without any trouble under the driving of the coil.

Referring to fig. 5, fig. 5 is a schematic structural diagram of the locking mechanism 42 in a locked state, that is, the drill plate device 4 is locked in the first coil 2, the drill plate device 4 is fixedly connected to the first coil 2, and the first coil 2 rotates, so that the drill plate device rotates along with the rotation. Specifically, referring to fig. 6 and 7, the locking mechanism 42 includes a telescopic dowel bar 421, a short-column lock bolt 422 is fixedly connected to a top end of the dowel bar 421, and referring to fig. 2, a clamping hole 23 for inserting the short-column lock bolt 422 is formed in an outer peripheral side surface of the first coil 2. The bottom periphery side of dowel steel 421 is equipped with the external screw thread, the bottom cover of dowel steel 421 is equipped with spiral rotor 425, be equipped with in the spiral rotor 425 with external screw thread complex internal thread, first cable wire groove 426 has been seted up to spiral rotor 425's periphery side, be equipped with first steel cable 423 and second steel cable 424 in first cable wire groove 426, the end fixing of first steel cable 423 is in first cable wire groove 426, and first steel cable 423 is around establishing in first cable wire groove 426, the end fixing of second steel cable 424 is in first cable wire groove 426, and second steel cable 424 is around establishing in first cable wire groove 426.

It should be noted that the first and

second steel cables

423 and 424 are substantially equivalent to the switch function, and respectively control the extending and retracting actions of the force transmission rod 421. During operation, first steel cable 423 stimulates upwards, and when first steel cable 423 stimulates upwards, second steel cable 424 can the crimple motion down to make spiral rotor 425 carry out the corotation, under external screw thread and internal screw thread mating reaction, dowel steel 421 stretches out outwards, thereby makes short column set bar 422 insert in the joint hole 23 of first coil 2, thereby makes the drill plate device fix for first coil 2, accomplishes the installation work of drill plate device 4. When the drill plate device 4 needs to be disassembled, the second steel cable 424 moves upwards, and when the second steel cable 424 moves upwards, the first steel cable 423 can move downwards in a curling manner, so that the spiral rotor 425 rotates reversely, and under the matching action of the external thread and the internal thread, the force transmission rod 421 retracts inwards, so that the short column lock bolt 422 is disengaged from the clamping hole 23 of the first coil pipe 2, the drill plate device is disengaged from the first coil pipe 2 and is fixed, and the disassembling work of the drill plate device 4 is completed. The drilling disk device 4 achieves the aims of barrier-free and noise-free tunneling, underground hole expanding, drilling disk unlocking and automatic matching of the unearthing basket.

Referring to fig. 5 and 8, the hole supporting mechanism includes a spiral roller 435, a second cable groove 436 is formed on an outer circumferential side of the spiral roller 435, a third steel cable 433 and a fourth steel cable 434 are disposed in the second cable groove 436, an end of the third steel cable 433 is fixed in the second cable groove 436, the third steel cable 433 is wound in the second cable groove 436, an end of the fourth steel cable 434 is fixed in the second cable groove 436, and the fourth steel cable 434 is wound in the second cable groove 436. The rotary drum is rotatably mounted within the drill plate body 41. The hole supporting mechanism further comprises two push rods 431, the drill plate body is provided with a mounting hole 24 through which the push rods 431 penetrate, the two push rods 431 are respectively telescopically mounted at two ends of the spiral roller 435, internal threads are formed in the spiral roller 435, external threads matched with the internal threads are formed in the outer side face of the end portion, close to the spiral roller 435, of each push rod 431, and a cutter 432 is fixedly mounted at one end, far away from the spiral roller 435, of each push rod 431.

It should be noted that the third steel cable 433 and the fourth steel cable 434 are substantially equivalent to switch functions, and respectively control the extension and retraction of the push rod 431. The during operation, third steel cable 433 stimulates up, and in the time of third steel cable 433 stimulates up, fourth steel cable 434 can the crimple motion down to make spiral drum 435 carry out the corotation, under external screw thread and internal screw thread mating reaction, the push rod 431 stretches out outwards, thereby makes cutter 432 stretch out drilling rig body lateral surface, thereby makes the radius increase that the drilling rig device excavated, accomplishes the hole expanding and prepares work. When the hole expanding is not needed, the fourth steel cable 434 moves upwards, and when the fourth steel cable 434 moves upwards, the third steel cable 433 moves downwards in a rolling and contracting mode, so that the spiral roller 435 rotates reversely, and under the matching action of the external thread and the internal thread, the push rod 431 retracts inwards, so that the cutter 432 is retracted into the drill disk body, and the hole expanding is relieved.

Referring to fig. 9, the third coil 5 is connected to the second coil 3, the end of the second coil 3 facing the third coil 5 is provided with a second pipe connecting groove 33, the third coil 5 is provided with a pin plate hole 51 aligned with the second pipe connecting groove 33, and the third coil 5 is fixedly provided with an electric pin plate mechanism. Referring to fig. 10 and 11, the electric pin plate mechanism includes the pin plate body 7 inserted through the pin plate hole 51 and into the second pipe joint groove 33. The electric pin plate mechanism further comprises an electric push rod 71431 fixedly mounted on the third coil pipe 5, telescopic rods 72 capable of moving in a telescopic mode are arranged at two ends of the electric push rod 71431, wedge blocks 73 are fixedly connected to the ends of the telescopic rods 72, the pin plate body 7 protrudes towards the side faces of the wedge blocks 73 to form mounting lugs 74, wedge holes 75 are formed in the mounting lugs 74, first inclined planes 76 are arranged in the wedge holes 75, and second inclined planes 77 opposite to the inclined directions of the first inclined planes 76 are arranged at the ends, facing the wedge holes 75, of the wedge blocks 73. The third coil 5 is further provided with a pin plate resetting mechanism for driving the pin plate body 7 to move inwards, the pin plate resetting mechanism comprises a supporting frame 78 fixedly mounted on the third coil 5, the pin plate body 7 extends out of a guide post 79 towards the inside of the supporting frame, a resetting spring 70 is sleeved on the outer peripheral side of the guide post 79, one end of the resetting spring 70 is fixedly connected with the guide post 79, and the other end of the resetting spring 70 is fixedly connected with the supporting frame. When the electric pin plate mechanism works, the two telescopic rods 72 of the electric push rod 71431 extend outwards, so that the wedge blocks 73 are inserted into the wedge holes 75, and the telescopic rods 72 lift the pin plate body 7 under the guidance of the first inclined surface 76 and the second inclined surface 77, and at the moment, the return spring 70 is in a compressed state; then the second pipe connecting groove 33 of the second coil 3 is aligned with the pin plate hole 51 of the third coil 5, the two telescopic rods 72 of the electric push rod 71431 are retracted, and the compressed return spring 70 drives the pin plate body 7 to be inserted into the second pipe connecting groove 33 and the pin plate hole 51 by its own elasticity, thereby realizing the automatic butt joint of the second coil 3 and the third coil 5.

The first coil 2, the second coil 3 and the third coil 5 of the present embodiment are combined to form a coil system, which plays a perfect hole wall protection role. The smooth connection of the coil pipe enables the karst cave and the underground river to be crossed: the steel pipe or the plastic pipe can directly pass through the pipe in a pipe leading mode, a perfect construction space is formed in the hollow part of the coil, and meanwhile, the hollow part of the coil can be filled with the dregs, so that the situation that the ground is raised or collapsed is avoided.

In the present embodiment, referring to fig. 12 and 13, the coil driving mechanism 13 includes arc-shaped sliding plates 61 fixedly installed at both sides of the inside of the frame 12, a driving gear shaft 62, and a driving coil 63.

Referring to the figures, the front end of the driving coil 63 extends to form a mounting portion 64 fixedly connected with the third coil 5, and the peripheral side surface of the driving coil 63 is provided with a plurality of engaging teeth 65 which are arranged at intervals in a spiral shape and take the pipe jacking direction as the axial direction.

Referring to fig. 14 to 16, the inner side surface of each arc-shaped sliding plate 61 is provided with a sliding groove 66 spirally arranged along the direction of the top pipe. The meshing teeth 65 are inserted into the sliding grooves 66, the driving gear shaft 62 is fixedly mounted on the frame 12 with the top pipe direction as the axial direction, and the driving gear shaft 62 is meshed with the meshing teeth 65. During operation, the driving gear shaft 62 rotates, the meshing teeth 65 of the driving coil 63 are meshed with the driving gear shaft 62, so that the driving coil 63 rotates, and the driving coil 63 can move along the excavating direction and rotate simultaneously under the spiral guidance of the meshing teeth 65 and the sliding grooves 66, so that proper rotating excavating force can be provided for the drilling disc, and forward propelling pressure can be provided for the drilling disc.

It should be noted that the coil driving mechanism 13 further includes a driving source that drives the spindle gear shaft to rotate. In this embodiment, the driving source is a driving motor, the driving motor is in transmission connection with the driving gear shaft 62 through a speed change mechanism, and the speed change mechanism directly adopts the existing equipment according to the calculation requirement: the automatic slowing down is realized when the resistance is large, and the automatic speeding up is realized when the resistance is small. The driving coil 63 bears the variable speed power of the driving gear shaft 62, and is matched with a spiral guide rail between the meshing teeth 65 and the sliding groove 66 to realize forced push-pull, the push-pull speed of the driving coil 63 is only related to the rotating speed, and meanwhile, strong push-pull force is generated due to the amplification effect of a spiral member, so that the purposes of core power conversion, forced controllable process and reaction force transmission are realized. The coil driving system converts the source power into rotary cutting and pressure of the coil system, and forced advance and retreat are realized.

Referring to fig. 17, the frame 11 of the present embodiment includes telescopic support legs 81 and power wheels 82. The telescopic support legs 81 can provide enough support force and limiting capacity during working, and the power wheels 82 are convenient for the movement of the pipe screwing pile press-digging machine. The frame 11 system realizes the invention aims of quick shifting, quick shifting in the field, pile machine support, reaction force transmission and auxiliary facility arrangement.

With reference to fig. 18, the hoisting mechanism in this embodiment is provided with a special hook in addition to a conventional crawler crane according to configuration requirements, so as to realize control of the drill plate, and fast hoisting of the soil discharging basket, the coil and the slurry pump, and is mainly used for hoisting a reinforcement cage, displacement in a pile yard, and the like. The special lifting hook needs to complete the technical actions of rotating alignment and automatically grabbing and releasing the rope under specific conditions, and mainly structurally comprises a lifting ring 83, a lifting rod 84 fixedly connected with the lifting ring 83, and a rotating support 86 rotatably mounted at the bottom of the lifting rod 84, wherein a rotating motor 85 for driving the rotating support 86 to rotate continuously around the electric rod is mounted on the side surface of the electric rod, a first clamping ring 88 and a second clamping ring 89 are hinged to the bottom end of the rotating support 86, and the rotating support 86 is further provided with a telescopic mechanism 87 for driving the first clamping ring 88 and the second clamping ring 89 to move oppositely. The hoisting mechanism of the embodiment can realize the invention aims of underground control of the drilling disk, quick soil discharging, slurry pumping and coil hoisting, and is also responsible for displacement of the pile machine, hoisting of the reinforcement cage and the like.

The working process of the coil pipe pile press-digging machine in the embodiment is as follows: firstly, sleeving a third coil 5 into a coil driving device; secondly, the first coil pipe 2 is sleeved with a drilling disc device 4; thirdly, performing secondary filtration; the hole expanding mechanism is driven to retract, and the locking mechanism 42 is controlled to extend out, so that the drilling disk device is locked on the first coil pipe 2; fourthly, starting the coil driving mechanism 13, and automatically connecting the first coil 2 on the downward moving sleeve of the third coil 5 by using an electric pin plate mechanism; fifthly, stopping the drilling machine when the first coil pipe 2 is drilled down to a proper position, automatically opening an electric pin plate mechanism of the third coil pipe 5 and the first coil pipe 2, lifting the third coil pipe 5, hanging the second coil pipe 3 and connecting the first coil pipe 2, and hanging the soil discharging basket to be embedded on the drilling disc body 41; sixthly, the third coil pipe 5 is downwards moved, sleeved with the second coil pipe 3 and automatically connected and normally drilled; seventhly, the unearthed baskets are hoisted out after being filled with soil, the unearthed baskets are dumped onto a soil transporting vehicle to be transported away, the unearthed baskets are hoisted back to the well to reload the soil, and the process of repeatedly cycling is carried out to finish the unearthed without stopping; eighthly, stopping the drilling machine when the hoisting hole at the upper part of the second coil 3 is drilled downwards and is attached to the ground, automatically opening the third coil 5 to be connected with the second coil 3, lifting the third coil 5, hoisting a new second coil 3 to be connected with the original second coil 3, and hoisting a soil discharging basket to be embedded on the drilling disc body 41; ninth, the third coil 5 is moved downwards and sleeved with a new second coil 3 to be automatically connected and normally drilled. And tenth, repeating the steps until the designed depth is reached.

In the embodiment, the hole expanding is completed by reversely rotating the main power, lifting the drilling disk to the top of the hole expanding, hanging the corresponding rope hanging loose end of the hole expanding member to a specific hanging point by a special lifting hook according to the width requirement of the hole expanding, then pulling the corresponding rope hanging tightening end of the hole expanding member by the special lifting hook with a certain pulling force (such as 1 ton), starting the main power to rotate downwards, pressing the rope hanging tightening end downwards slowly, slowly pulling the rope hanging tightening end upwards, slowly cutting a tool bit of the hole expanding member into the rock wall, hanging the rope hanging tight end to the specific hanging point, tightly pulling the rope hanging loose end, continuously drilling downwards to the designed depth, lifting the drilling disk to the middle part of the hole expanding again, embedding the soil discharging basket, drilling downwards to the designed depth again to remove the residual soil to the maximum limit, and expanding.

Compared with the prior art, the rotary pipe pressure pile driving machine overcomes the pain points in all the existing hole forming construction methods of large-diameter cast-in-place piles, and is low in energy consumption, low in pollution, high in safety degree and fast in progress in the construction process. The barrier-free construction of the large-diameter cast-in-place pile under the land full-geological condition is realized, and the enhanced type cast-in-place pile can be more used for rapid rescue of mine disasters, water construction and the like.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A rotary pipe pile press-digging machine is characterized in that: the excavator comprises a frame and a rack arranged on the frame, wherein the rack is provided with a plurality of coils which are sequentially connected along the excavating direction and a coil driving mechanism which is arranged on the rack and is used for driving the coils to rotate;

the drilling disc device is sleeved in the coil and comprises a drilling disc body, a locking mechanism arranged on the drilling disc body and used for being locked with the coil, and a hole supporting mechanism arranged on the drilling disc body.

2. The coil pile driver according to claim 1, wherein: locking mechanical system includes the telescopic dowel steel, the top portion rigid coupling of dowel steel has short column set bar, the bottom periphery side of dowel steel is equipped with the external screw thread, the bottom cover of dowel steel is equipped with the screw rotor, be equipped with in the screw rotor with external screw-thread fit's internal thread, first cable wire groove has been seted up to the periphery side of screw rotor, first cable wire inslot is equipped with first steel cable and second steel cable, the end fixing of first steel cable is in first cable wire inslot, and first steel cable is around establishing in the first cable wire groove, the end fixing of second steel cable is in first cable wire inslot, and the second steel cable is around establishing in the first cable wire groove.

3. The coil pile driver according to claim 1, wherein: the hole supporting mechanism comprises a spiral roller, a second steel cable groove is formed in the outer peripheral side of the spiral roller, a third steel cable and a fourth steel cable are arranged in the second steel cable groove, the end portion of the third steel cable is fixed in the second steel cable groove, the third steel cable is wound in the second steel cable groove, the end portion of the fourth steel cable is fixed in the second steel cable groove, and the fourth steel cable is wound in the second steel cable groove; the rotary drum is rotatably mounted within the drill plate body.

4. The rotary pipe pile press according to claim 3, wherein: the hole supporting mechanism further comprises two push rods, the two push rods are respectively telescopically mounted at two end portions of the spiral roller, internal threads are arranged in the spiral roller, external threads matched with the internal threads are arranged on the outer side face of the end portion, close to the spiral roller, of the push rod, and a cutter is fixedly mounted at one end, far away from the spiral roller, of the push rod.

5. The coil pile driver according to claim 1, wherein: the plurality of coils includes a first coil at a beginning, a third coil at an end, and a second coil between the first and third coils.

6. The coil pile driver according to claim 5, wherein: the second coil with first coil joint, first coil orientation first coupling groove has been seted up to the tip of second coil, the second coil orientation the one end in first coupling groove outwards the protrusion forms first coupling, first coupling with first coupling groove all is the forked tail shape setting.

7. The coil pile driver according to claim 6, wherein: first coupling inserts in the first coupling groove, one side of first coupling with leave the joint clearance between the cell wall of first coupling groove, be provided with the panel in the joint clearance, the panel orientation scalable motion's spring bolt is all installed at the both ends of first coupling groove and first coupling, first coupling orientation the terminal surface and the first coupling groove orientation of spring bolt the confession has all been seted up to the tank bottom of spring bolt male card pinhole.

8. The coil pile driver according to any one of claims 5 to 6, wherein: the third coil pipe is connected with the second coil pipe, a second pipe connecting groove is formed in the end, facing the third coil pipe, of the second coil pipe, a pin plate hole aligned with the second pipe connecting groove is formed in the third coil pipe, an electric pin plate mechanism is fixedly installed on the third coil pipe and comprises a pin plate body penetrating through the pin plate hole and inserted into the second pipe connecting groove; electric pin board mechanism still includes the electric putter of fixed mounting on the third coil, electric putter's both ends all are provided with telescopic motion's telescopic link, and the equal rigid coupling of the tip of each telescopic link has the wedge, the cotter body orientation the side protrusion of wedge forms the installation ear, set up the wedge hole in the installation ear, the wedge hole is equipped with first inclined plane, the wedge orientation the tip of wedge hole be equipped with first inclined plane opposite direction of slope second inclined plane.

9. A coil pile driver according to any one of claims 7 to 8, wherein: the third coil still is equipped with and orders about the round pin board canceling release mechanical system of round pin board body motion inwards, round pin board canceling release mechanical system includes fixed mounting and is in supporting rack on the third coil, round pin board body orientation extend out the guide post in the support frame, the periphery side cover of guide post is equipped with reset spring, reset spring's one end and guide post rigid coupling, reset spring's the other end with the support frame rigid coupling.

10. The coil pile driver according to claim 1, wherein: the coil driving mechanism comprises arc sliding plates, driving gear shafts and driving coils, the arc sliding plates, the driving gear shafts and the driving coils are fixedly mounted on two sides inside the rack, mounting portions fixedly connected with the third coils extend out of the front ends of the driving coils, a plurality of meshing teeth which are axially arranged in a spiral shape at intervals are arranged on the peripheral side faces of the driving coils, the jacking direction is taken as the axial direction, sliding grooves which are spirally arranged in the axial direction are formed in the inner side faces of the arc sliding plates, the meshing teeth are inserted into the sliding grooves, the driving gear shafts are fixedly mounted on the rack in the jacking direction, and the driving gear shafts are meshed with the meshing teeth; the coil driving mechanism further comprises a driving source for driving the spindle gear shaft to rotate.