CN207178343U - All-hydraulic tunnel drilling rig multiple directional control valve - Google Patents
All-hydraulic tunnel drilling rig multiple directional control valve Download PDFInfo
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- CN207178343U CN207178343U CN201721207111.5U CN201721207111U CN207178343U CN 207178343 U CN207178343 U CN 207178343U CN 201721207111 U CN201721207111 U CN 201721207111U CN 207178343 U CN207178343 U CN 207178343U
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Abstract
The utility model discloses a kind of all-hydraulic tunnel drilling rig multiple directional control valve, including rotary valve plate, switching valve block, feeding valve block and the tailgate valve block being sequentially connected；The rotary valve plate is used for the forward and backward oil inlet for connecting underground drill rig rotation motor；The feeding valve block and tailgate valve block are used to control the flexible of feed cylinder；The switching valve block includes three position five-way valve and three six-way valves, and the three position five-way valve is pilot operated directional control valve, for connecting the main pump of underground drill rig and the clamping hydraulic fluid port of auxiliary pump, the oil inlet of oild chuck and clamper respectively and unclamping hydraulic fluid port；Three position five-way valve is set to be in upper when three six-way valves are in upper, during for realizing rotation motor reversion, so that clamper is opened to realize automatic rotary stacks；When three six-way valves are in the next, feed cylinder is set to float so that drilling rod is threaded off for opening hydraulic control one-way valve.Beneficial effect is：Compact-sized, pipeline connection is few, is not easy to reveal, and power loss is small, and system effectiveness is high.
Description
Technical field
A kind of multiple directional control valve is the utility model is related to, more particularly to a kind of all-hydraulic tunnel drilling rig multiple directional control valve.
Background technology
Underground drill rig is the rig crept into underground passage, is mainly used in geology of deep part exploration, gas in tunnel
The engineering constructions such as extraction, water injection, ventilation.Its primary structure is：Unit head equipped with oild chuck is connected with propelling cylinder, folder
Holder is made up of two panels semicircle slips, and a piece of slips is fixed, and another slips can move, the two panels card under disc spring effect
Watt it is pressed to together.Its working method is：Banked direction control valves rotary handle commutates, and unit head rotation, oild chuck is clamped drilling rod rotation
Turn, while clamper two panels slips is opened, and unclamps drilling rod, is pushed off before promoting handle to the unit head in the presence of propelling cylinder
Advance, crept into；After throwing a drilling rod into, handle is promoted to return middle position, unit head halts, and rotary handle returns middle position, moves
Power head is stopped the rotation, and chuck is opened, while clamper two panels slips clamps the drilling rod thrown into, prevents from dropping.In drilling rod afterbody again
Install a drilling rod additional, promote the commutation of handle post-tensioning, unit head backs to afterbody, is drilled by constantly installing drilling rod circulation additional.Chuck
Clamping and opening, clamper clamping and open controlled by control valve group.
Current banked direction control valves of drilling mainly has 2 points of deficiencies：First, drilling valve and control valve group is two valves, need therebetween
Connected by many pipelines, take much room, easily produce leak source；Second, when drill stop when, drilling rod is by clamper
Disc spring pressing two panels slips clamps, and when drilling rod is a lot, the thrust of disc spring is inadequate, drilling rod can be caused to slide.
The content of the invention
Technical problem to be solved in the utility model is to provide a kind of compact-sized, and pipeline connection is few, is not easy to reveal, work(
Rate loses small, the high all-hydraulic tunnel drilling rig multiple directional control valve of system effectiveness.
The technical solution of the utility model is as follows：
A kind of all-hydraulic tunnel drilling rig multiple directional control valve, including rotary valve plate, switching valve block, the feeding valve block being sequentially connected
With tailgate valve block；The rotary valve plate is used for the forward and backward oil inlet for connecting underground drill rig rotation motor；It is described feeding valve block and
Tailgate valve block is used to control the flexible of feed cylinder；
The switching valve block includes three position five-way valve and three six-way valves, and the three position five-way valve is pilot operated directional control valve and bag
Include oil inlet P 2, actuator port A3, A4 and B4, internal oil return inlet T 1, internal oil inlet C2 and to control its valve rod to act interior
Portion's control port K1, K2 and K5, the internal oil inlet C2 respectively by the oil inlet P 1 of a check valve and rotary valve plate and
The oil inlet P 2 connects, for connecting the main pump and auxiliary pump of underground drill rig respectively；Actuator port A3 is used to connect underground drill rig
The oil inlet of oild chuck, actuator port A4 and B4 are respectively used to connect the clamping hydraulic fluid port of underground drill rig clamper and unclamp oil
Mouthful；
When the three position five-way valve is in middle position, the internal oil inlet C2 turns on actuator port A3, A4, working oil
Mouth B4 is turned on internal oil return inlet T 1, and drilling rod when being pulled out of hole for realizing is threaded off；It is internal when the three position five-way valve is in upper
Oil inlet C2 turns on actuator port A3 and B4, and actuator port A4 turns on internal oil return inlet T 1, described in when being pulled out of hole for realizing
The clamping of oild chuck and the release of the clamper；When the three position five-way valve is in it is the next when, the internal oil inlet C2
Turned on actuator port A4, actuator port A3 and B4 turns on internal oil return inlet T 1, so that the oild chuck unclamps and clamped
Device clamps；
Three six-way valves include actuator port A1 ＇, B1 ＇, A2 ＇ and B2 ＇, and control port K3 and K4, wherein work
Make hydraulic fluid port A1 ＇ by the internal control hydraulic fluid port K1 and internal galleries and the actuator port A1 being located on the rotary valve plate to connect
Logical, actuator port B1 ＇ pass sequentially through internal control hydraulic fluid port K2, check valve I and internal galleries and are located on the rotary valve plate
Actuator port B1 is connected, and the oil inlet of hydraulic control one-way valves of the actuator port A2 ＇ with being located on tailgate valve block connects, actuator port
B2 ＇ connect with the oil-out B2 being located on the feeding valve block；Control port K3 and the hydraulic control one-way valve control port connect
Logical, control port K4 connects with the internal control hydraulic fluid port K5；
When three six-way valves are in upper, control port K4 turns on actuator port B2 ＇, actuator port A1 ＇ and B1 ＇
Conducting, control port K3 and actuator port A2 ＇ cut-off, for realize rotation motor reversion when make three position five-way valve be in it is upper,
So that clamper is opened to realize automatic rotary stacks；When three six-way valves are in the next, control port K4 and work
Hydraulic fluid port A2 ＇ are turned on, and control port K3 turns on actuator port B1 ＇, actuator port A1 ＇ and B2 ＇ cut-offs；For opening fluid-control one-way
Valve makes feed cylinder float so that drilling rod is threaded off.
As further preferred, when three six-way valves are in middle position, control port K4 turns on actuator port B2 ＇,
Control port K3 turns on actuator port B1 ＇, actuator port A1 ＇ and A2 ＇ cut-offs.
As further preferred, the rotary valve plate includes four five-way valves, and four five-way valves include oil inlet
P1, actuator port A1 and B1, oil return inlet T and internal work hydraulic fluid port C1；The oil inlet P 1 is used to connect underground drill rig main pump, work
Make the forward and backward oil inlet that hydraulic fluid port A1 and B1 are respectively used to connect underground drill rig rotation motor.
As further preferred, when four five-way valves are in middle position, the oil inlet P 1 and actuator port A1 and
B1 and internal work hydraulic fluid port C1 conductings, oil return inlet T cut-off；When four five-way valves are upper in first, the oil inlet
P1 turns on actuator port A1, actuator port B1 and internal work hydraulic fluid port C1 conductings, oil return inlet T cut-off；When four five-way valves
In second it is upper when, the oil inlet P 1 turns on actuator port A1, actuator port B1 and oil return inlet T conducting, internal work
Hydraulic fluid port C1 ends；When four five-way valves be in it is the next when, the oil inlet P 1 turns on actuator port B1, actuator port A1 and
Internal work hydraulic fluid port C1 is turned on, oil return inlet T cut-off.
As further preferred, the feeding valve block includes a three-position four-way valve, and the three-position four-way valve includes oil inlet
P2 ＇, actuator port A2 ＇ ＇ and B2 and oil return inlet T, the ＇ of oil inlet P 2 pass through internal galleries and the oil inlet P 2 and inside respectively
Actuator port C1 is connected, actuator port A2 ＇ ＇ respectively with actuator port A2 ＇ and the hydraulic control one-way valve being located on tailgate valve block
Oil inlet is connected by internal galleries, and actuator port B2 is connected with the actuator port B2 ＇ by internal galleries, is cheated for connecting
The rodless cavity of road rig feed cylinder.
As further preferred, the tailgate valve block includes a tailgate valve body and the hydraulic control being located on the valve body
Check valve, actuator port A2 is provided with tailgate valve body, for connecting the rod chamber of underground drill rig feed oil cylinder.
As further preferred, sequence valve is provided between the oil inlet P 2 and the ＇ of oil inlet P 2, for for described three
The inside oil inlet C2 of five-way valve provides the fluid with certain pressure, so that it is guaranteed that in the clamping oil pocket of underground drill rig clamper
All the time there is certain oil pressure to clamp drilling rod, prevent drilling rod from sliding.
As further preferred, main overflow valve is provided between oil inlet P 1 and oil return inlet T on rotary valve plate, is used for
Prevent the oil pressure for entering internal system too high and damage system.
As further preferred, four five-way valves are hand-operated direction valve.
As further preferred, three six-way valves are hand-operated direction valve.
As further preferred, the three-position four-way valve is hand-operated direction valve.
The beneficial effects of the utility model are：
1st, control the rotating of motor and three six-way valves can be three in automatic control switch valve piece by rotary valve plate
The working condition of position five-way valve, so as to which the rotating for realizing according to hydraulic motor can automatically control oild chuck and clamper
Clamp and unclamp, compact-sized, pipeline connection is few, is not easy to reveal, and power loss is small, and system effectiveness is high.
2nd, operation handle is few, only three operation handles, can manipulate, easily realize centralized Control, it is possible to increase main frame
Reliability.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is structure principle chart of the present utility model.
Fig. 3 is the structural representation for switching valve block in Fig. 1.
Fig. 4 is Fig. 3 A-A sectional views.
In figure：Rotary valve plate 1, switch valve block 2, feed valve block 3, tailgate valve block 4, main overflow valve 5, four five-way valves 6, list
To valve I 7, rotation motor 8, oild chuck 9, clamper 10, feed cylinder 11, unloading valve 12, hydraulic control one-way valve 13, sequence valve
14, three-position four-way valve 15, check valve III 16, three six-way valves 17, three position five-way valve 18, check valve II 19, adjusting rod 20, reset
Spring 21, valve bonnet 22, switching valve 23, hydraulic control valve rod 24, seal plug 25, annular oil cavity I 26, pressing plate 27, limited post 28, ring
Shape oil pocket II 29, back oil road 30, oil circuit 31.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The all other embodiment obtained, belong to the scope of the utility model protection.
As depicted in figs. 1 and 2, a kind of all-hydraulic tunnel drilling rig multiple directional control valve that the utility model is related to, including pass through
Rotary valve plate 1, switching valve block 2, feeding valve block 3 and the tailgate valve block 4 that bolt is sequentially connected；The rotary valve plate 1 is used to connect
The forward and backward oil inlet of underground drill rig rotation motor 8, so as to control the forward and backward of rotation motor 8；The switching valve block 2 is used for
The clamping and release of underground drill rig oild chuck 9 and clamper 10 when control is drilled and pulled out of hole, the feeding valve block 3 and tailgate valve
Piece 4 is used to control the flexible of feed cylinder 11.
The rotary valve plate 1 includes four five-way valves 6 being located on rotary valve, and it includes oil inlet P1, work
Hydraulic fluid port A1 and B1, oil return inlet T and internal work hydraulic fluid port C1.The oil inlet P 1 is drawn by rotary valve surface, is cheated for connecting
Road rig main pump；Actuator port A1 and B1 is drawn by rotary valve surface, is respectively used to connect underground drill rig rotation motor 8
Forward and backward oil inlet.When four five-way valves 6 are in middle position, the oil inlet P 1 and actuator port A1 and B1 and inside
Actuator port C1 is turned on, oil return inlet T cut-off；When four five-way valves 6 are upper in first, the oil inlet P 1 and working oil
Mouth A1 conductings, actuator port B1 and internal work hydraulic fluid port C1 conductings, oil return inlet T cut-off；When four five-way valves 6 are on second
During position, the oil inlet P 1 turns on actuator port A1, actuator port B1 and oil return inlet T conducting, internal work hydraulic fluid port C1 cut-offs；
When four five-way valves 6 are in it is the next when, the oil inlet P 1 turn on actuator port B1, and actuator port A1 and internal work are oily
Mouth C1 conductings, oil return inlet T cut-off.Main overflow valve 5 is connected between oil inlet P 1 and oil return inlet T on rotary valve, is used
System is damaged in preventing the oil pressure into internal system too high.
The switching valve block 2 includes the three position five-way valve 18 and three six-way valves 17 being located on a switching valve 23, institute
Three position five-way valve 18 is stated for pilot operated directional control valve and including the hydraulic control valve rod 24 in switching valve 23, on switching valve 23
Provided with oil inlet P 2, actuator port A3, A4 and B4, internal oil return inlet T 1 and control what its valve rod acted at internal oil inlet C2
Internal control hydraulic fluid port K1, K2 and K5.As shown in Figure 3 and Figure 4, slip is passed through positioned at the one end of hydraulic control valve rod 24 in switching valve 23
Gap, which coordinates, is provided with limited post 28, and the outer end of limited post 28 is sealed spacing by the pressing plate 27 being fixed on switching valve 23.
The outer end of limited post 28 is provided with a positioning shaft shoulder, and an annular oil is formed between the positioning shaft shoulder and the endoporus ladder of switching valve 23
Chamber I 26, be respectively equipped between positioning shaft shoulder outer rim and the endoporus of switching valve 23 and between positioning shaft shoulder outer end and pressing plate 27 with
The annular gap that annular oil cavity I 26 communicates, the internal control hydraulic fluid port K2 are connected with annular oil cavity I 26, pushed away for importing fluid
Hydrodynamic control valve rod 24 makes the three position five-way valve 18 be moved to middle position, dropout during to pull out of hole.It is anterior provided with one in limited post 28
Individual annular groove, the annular groove form an annular oil cavity II 29, the internal control hydraulic fluid port K1 with the endoporus of switching valve 23
Connected with annular oil cavity II 29, be provided with centre bore in the inner of limited post 28, centre bore is led with annular oil cavity II 29 by radial hole
Logical, promoting hydraulic control valve rod 24 to be moved to left end for importing fluid makes the three position five-way valve 18 be in upper conducting.In pilot operated valve device
The one end of limited post 28 is corresponded in centre bore on bar 24 and is connected with seal plug 25, back oil road 30 is provided with hydraulic control valve rod 24,
Back oil road 30 is centre bore by being located on hydraulic control valve rod 24 and is respectively provided at the radial hole at centre bore both ends and forms, for this
ON operation hydraulic fluid port A4 and internal oil return inlet T 1 when three position five-way valve 18 is in upper.The other end of hydraulic control valve rod 24 is by switching
Valve body 23 is passed, and the other end of hydraulic control valve rod 24 is corresponded on switching valve 23 and is fixed with valve bonnet 22, passes through screw thread in valve bonnet 22
Adjusting rod 20 is connected with, the inner of adjusting rod 20 is stuck in the centre bore of hydraulic control valve rod 24, on adjusting rod 20 in valve bonnet 22
Back-moving spring 21 is arranged with, the reset for hydraulic control valve rod 24.Internal control is communicated with switching valve 23 and valve bonnet 22
Hydraulic fluid port K5 and the oil circuit 31 of the inner chamber of valve bonnet 22.
The internal oil inlet C2 passes through check valve II 19 and check valve III 16 and the internal galleries being located in valve body respectively
Connected with the oil inlet P 1 and the oil inlet P 2 of rotary valve plate 1, for connecting the main pump and auxiliary pump of underground drill rig respectively.Work
Hydraulic fluid port A3 is drawn by the surface of switching valve 23, for connecting the oil inlet of underground drill rig oild chuck 9；A4 and B4 points of actuator port
Do not drawn by the surface of switching valve 23, for connecting the clamping hydraulic fluid port of underground drill rig clamper 10 respectively and unclamping hydraulic fluid port.It is described
Oil return inlet T draws interface by internal galleries on switching valve, and internal oil return inlet T 1 is by internal galleries on rotary valve
Draw interface.
When the three position five-way valve 18 is in middle position, the internal oil inlet C2 turns on actuator port A3, A4, working oil
Mouth B4 turns on internal oil return inlet T 1, and the higher fluid of pressure passes sequentially through corresponding check valve II 19 in the main pump and auxiliary pump
Or check valve III 16 and internal oil inlet C2 and actuator port A3, A4 respectively enter oil inlet and the institute of the oild chuck 9
The clamping hydraulic fluid port of clamper 10 is stated, drilling rod when being pulled out of hole for realizing is threaded off.It is internal when the three position five-way valve 18 is in upper
Oil inlet C2 turns on actuator port A3 and B4, and actuator port A4 turns on internal oil return inlet T 1, is pressed in the main pump and auxiliary pump
The higher fluid of power pass sequentially through corresponding to check valve II 19 or check valve III 16 and internal oil inlet C2 and actuator port A3,
B4 respectively enters the oil inlet of the oild chuck 9 and the release hydraulic fluid port of the clamper 10, for realizing the oild chuck 9
Clamping and the clamper 10 release.When the three position five-way valve 18 is in it is the next when, the internal oil inlet C2 and work
Make hydraulic fluid port A4 conductings, actuator port A3 and B4 turns on internal oil return inlet T 1, the higher fluid of pressure in the main pump and auxiliary pump
The clamper 10 is entered by corresponding check valve II 19 or check valve III 16 and internal oil inlet C2 and actuator port A4
Clamping hydraulic fluid port so that the oild chuck 9 unclamps and clamper 10 clamps.
Three six-way valves 17 include actuator port A1 ＇, B1 ＇, A2 ＇ and B2 ＇, and control port K3 and K4, wherein
Actuator port A1 ＇ pass through the internal control hydraulic fluid port K1 and internal galleries and the actuator port A1 being located on the rotary valve plate 1
Connection, actuator port B1 ＇ pass sequentially through internal control hydraulic fluid port K2, check valve I 7 and internal galleries and are located at the rotary valve plate 1
On actuator port B1 connections, actuator port A2 ＇ connect with the oil inlet for the hydraulic control one-way valve 13 being located on tailgate valve block 4, work
Make hydraulic fluid port B2 ＇ and connected with the oil-out B2 being located on the feeding valve block 3；Control port K3 and the hydraulic control one-way valve 13 control
Liquefaction mouth connects, and control port K4 connects with the internal control hydraulic fluid port K5.
Three six-way valves 17 be in it is upper when, control port K4 turns on actuator port B2 ＇, actuator port A1 ＇ with
B1 ＇ are turned on, and control port K3 and actuator port A2 ＇ cut-offs, the internal control hydraulic fluid port K5 pass sequentially through control port K4 and work
Make hydraulic fluid port B2 ＇ oil returns and auxiliary oil-feed resets, internal control hydraulic fluid port K2 passes sequentially through actuator port B1 ＇, A1 ＇ and controlled with the inside
Liquefaction mouth K1 connect, for realize rotation motor 8 invert when make three position five-way valve 18 be in it is upper so that clamper 10 is opened
To realize automatic rotary stacks.When three six-way valves 17 are in the next, control port K4 turns on actuator port A2 ＇, control
Liquefaction mouth K3 turns on actuator port B1 ＇, actuator port A1 ＇ and B2 ＇ cut-offs；The internal control hydraulic fluid port K5 passes sequentially through control
Hydraulic fluid port K4 connects with actuator port A2 ＇, the oil return of the three position five-way valve 18 and auxiliary oil-feed reset when being pulled out of hole for realizing；Institute
State actuator port B1 ＇ to turn on control port K3, feed cylinder 11 is floated so that drilling rod takes off for opening hydraulic control one-way valve 13
Button.When three six-way valves 17 are in middle position, control port K4 turns on actuator port B2 ＇, control port K3 and working oil
Mouth B1 ＇ conductings, actuator port A1 ＇ and A2 ＇ cut-offs.
The feeding valve block 3 includes a three-position four-way valve 15, including the ＇ of oil inlet P 2, actuator port A2 ＇ ＇ and B2 and
Oil return inlet T, the ＇ of oil inlet P 2 are connected by internal galleries with the oil inlet P 2 and internal work hydraulic fluid port C1 respectively, actuator port
Oil inlets of the A2 ＇ ＇ respectively with actuator port A2 ＇ and the hydraulic control one-way valve being located on tailgate valve block 4 13 is connected by internal galleries
Logical, actuator port B2 is connected with the actuator port B2 ＇ by internal galleries, for connecting the nothing of underground drill rig feed oil cylinder 11
Rod cavity.When the three-position four-way valve 15 is in middle position, the ＇ of oil inlet P 2, actuator port A2 ＇ ＇ and B2 and the homogeneous mutual conductance of oil return inlet T
It is logical；When the three-position four-way valve 15 is in upper, the ＇ of oil inlet P 2 is turned on actuator port A2 ＇ ＇, and actuator port B2 is led with oil return inlet T
It is logical；When the three-position four-way valve 15 is in the next, the ＇ of oil inlet P 2 is turned on actuator port B2, and actuator port A2 ＇ ＇ are led with oil return inlet T
It is logical.
The tailgate valve block 4 includes a tailgate valve body and the hydraulic control one-way valve 13 being located on the valve body, in tail
Plate valve body is provided with actuator port A2, for connecting the rod chamber of underground drill rig feed oil cylinder 11.Actuator port A2 and the liquid
Oil-out one end of control check valve 13 is connected by internal galleries, positioned at the fuel-displaced of the hydraulic control one-way valve 13 on tailgate valve body
Unloading valve 12 is provided between mouth one end and oil return inlet T, the control port of unloading valve 12 is connected with actuator port B2 by internal galleries
It is logical.
Sequence valve 14 is connected between the oil inlet P 2 and the ＇ of oil inlet P 2, the sequence valve 14 is arranged on switching valve
On, for providing the fluid with certain pressure for the inside oil inlet C2 of the three position five-way valve 18, so that it is guaranteed that tunnel bores
All the time there is certain oil pressure to clamp drilling rod in the clamping oil pocket of machine clamper 10, prevents drilling rod from sliding.
Four five-way valves 6, three-position four-way valve 15 and three six-way valves 17 are hand-operated direction valve.
When hydraulic control motor stalls, rotary valve plate 1 and feeding valve block 3 are in middle position, and feed cylinder 11 is slack, secondary
The fluid of pump output is entered in three position five-way valve 18 by internal oil inlet C2, three position five-way valve 18 is in bottom, due to
Now internal oil inlet C2 is turned on actuator port A4, and the fluid of entrance is imported into additional lock in the clamping oil pocket of clamper 10
Clamping disc spring in holder 10, clamper 10 is clamped drilling rod strength, effectively can prevent drilling rod from sliding.
When needing to throw into drilling rod, first by three manual switchings of six-way valve 17 to upper, then rotary valve plate 1 is controlled to make it
It is upper in second, rotate forward hydraulic motor, while entered by the fluid that actuator port A1 is discharged through internal control hydraulic fluid port K1
Promote valve rod to move down in three position five-way valve 18, three position five-way valve 18 is in upper；Now in the main pump and auxiliary pump pressure compared with
High fluid passes sequentially through oil inlet and the institute that internal oil inlet C2 and actuator port A3, B4 respectively enter the oild chuck 9
The release hydraulic fluid port of clamper 10 is stated, oild chuck 9 is clamped drilling rod, clamper 10 unclamps drilling rod, makes drilling rod in the He of oild chuck 9
Turned clockwise under the drive of hydraulic motor；Control feeding valve block 3 is at upper, now to be exported by auxiliary pump oil manually again
Liquid passes sequentially through sequence valve 14 and the ＇ of oil inlet P 2 is entered in feeding valve block 3, then through actuator port A2 ＇ ＇ and hydraulic control one-way valve 13
Enter in the rod chamber of feed cylinder 11, make feed cylinder 11 drive the drilling rod of rotation to advance；
Valve block 3 is fed when feed cylinder 11 proceeds to range and returns to middle position, feed cylinder 11 halts, simultaneously
Rotation motor 8 returns to middle position, and hydraulic control motor stops the rotation.Now, internal control hydraulic fluid port K1 pressure discharges, and three position five-way valve 18 exists
Automatically reset in the presence of back-moving spring and in bottom, clamp clamper 10, oild chuck 9 unclamps, then control feeding
Valve block 3 makes feed cylinder 11 drive chuck to retreat to bottom；When feed cylinder 11 is retreated to range, above-mentioned beat is repeated
Drill-through journey, throwing into successively for drilling rod can be realized.
During trip-out, first by three manual switchings of six-way valve 17 to bottom, then rotary valve plate 1 is controlled to be on second
Position, rotates forward hydraulic motor, while enter three position five-way valve through internal control hydraulic fluid port K1 by the fluid that actuator port A1 is discharged
Promote valve rod to move down in 18, three position five-way valve 18 is in upper；Now in the main pump and auxiliary pump the higher fluid of pressure according to
The secondary oil inlet and the clamper 10 that the oild chuck 9 is respectively enterd by internal oil inlet C2 and actuator port A3, B4
Release hydraulic fluid port, oild chuck 9 is clamped drilling rod, clamper 10 unclamps drilling rod, makes drilling rod in oild chuck 9 and hydraulic motor
Turned clockwise under drive；Control feeding valve block 3 is at bottom manually again, and the fluid now exported by auxiliary pump passes sequentially through
Sequence valve 14 and the ＇ of oil inlet P 2 are entered in feeding valve block 3, then the rodless cavity of feed cylinder 11 is entered through actuator port B2
It is interior, make feed cylinder 11 drive the drilling rod of rotation to retreat.
Valve block 3 is fed when feed cylinder 11 backs to range and returns to middle position, feed cylinder 11 stops retreating, simultaneously
Rotation motor 8 returns to middle position, and hydraulic control motor stops the rotation.Now, internal control hydraulic fluid port K1 pressure discharges, and three position five-way valve 18 exists
Automatically reset in the presence of back-moving spring and in bottom, clamp clamper 10, oild chuck 9 unclamps；Then control rotation
Valve block 1 makes hydraulic control motor rotate counterclockwise, through check valve I 7 while enters control by the fluid that actuator port B1 is exported to bottom
Hydraulic fluid port K2 and actuator port B1 ＇, hydraulic control one-way valve 13 is opened through three six-way valves 17, now three position five-way valve 18 is in middle position,
In the main pump and auxiliary pump the higher fluid of pressure pass sequentially through internal oil inlet C2 and actuator port A3, A4 respectively enter it is described
The clamping hydraulic fluid port of the oil inlet of oild chuck 9 and the clamper 10, oild chuck 9 and clamper 10 is set to simultaneously clamp on drilling rod,
Because the final section drilling rod that oild chuck 9 clamps reversely rotates under the driving of hydraulic control motor, therefore the section drilling rod can be made
Threaded off with drilling rod above, simultaneously because hydraulic control one-way valve 13 is opened, feed cylinder 11 is avoided in automatic backing simultaneously of threading off
Wound button.
After final section drilling rod is completely disengaged, rotary valve plate is switched to middle position, the stalling of hydraulic control motor, three position five-way valve 18
Automatically reset in the presence of back-moving spring to bottom, clamp clamper 10, oild chuck 9 unclamps, and final section drilling rod leans on
Deadweight comes off；Then control feeding valve block 3 makes feed cylinder 11 drive chuck to advance to bottom；When feed cylinder 11 advances to
During range, above-mentioned trip-out process is repeated, the taking-up successively of drilling rod can be realized.
Although embodiment of the present utility model is disclosed as above, it is not restricted in specification and embodiment
Listed utilization, it can be applied to various suitable fields of the present utility model completely, for those skilled in the art,
Other modification is easily achieved, therefore under the universal limited without departing substantially from claim and equivalency range, this reality
Specific details is not limited to new and shown here as the legend with description.
Claims (10)
1. a kind of all-hydraulic tunnel drilling rig multiple directional control valve, it is characterized in that：Including be sequentially connected rotary valve plate, switching valve block,
Feed valve block and tailgate valve block；The rotary valve plate is used for the forward and backward oil inlet for connecting underground drill rig rotation motor；It is described enter
It is used to control the flexible of feed cylinder to valve block and tailgate valve block；
The switching valve block includes three position five-way valve and three six-way valves, and the three position five-way valve is for pilot operated directional control valve and including entering
Hydraulic fluid port P2, actuator port A3, A4 and B4, internal oil return inlet T 1, internal oil inlet C2 and the inside control for controlling its valve rod to act
Liquefaction mouth K1, K2 and K5, the internal oil inlet C2 are respectively by the oil inlet P 1 of a check valve and rotary valve plate and described
Oil inlet P 2 connects, for connecting the main pump and auxiliary pump of underground drill rig respectively；Actuator port A3 is used to connect underground drill rig hydraulic pressure
The oil inlet of chuck, actuator port A4 and B4 are respectively used to connect the clamping hydraulic fluid port of underground drill rig clamper and unclamp hydraulic fluid port；
When the three position five-way valve is in middle position, the internal oil inlet C2 turns on actuator port A3, A4, actuator port B4
Turned on internal oil return inlet T 1, drilling rod when being pulled out of hole for realizing is threaded off；When the three position five-way valve is in upper, internal oil-feed
Mouth C2 turns on actuator port A3 and B4, and actuator port A4 turns on internal oil return inlet T 1, hydraulic pressure when being pulled out of hole for realizing
The clamping of chuck and the release of the clamper；When the three position five-way valve is in it is the next when, the internal oil inlet C2 and work
Make hydraulic fluid port A4 conductings, actuator port A3 and B4 turns on internal oil return inlet T 1, so that the oild chuck unclamps and clamper presss from both sides
Tightly；
Three six-way valves include actuator port A1 ＇, B1 ＇, A2 ＇ and B2 ＇, and control port K3 and K4, wherein working oil
Mouth A1 ＇ are connected by the internal control hydraulic fluid port K1 and internal galleries with the actuator port A1 being located on the rotary valve plate, work
Make hydraulic fluid port B1 ＇ and pass sequentially through internal control hydraulic fluid port K2, check valve I and internal galleries and the working oil being located on the rotary valve plate
Mouth B1 connections, the oil inlet of hydraulic control one-way valves of the actuator port A2 ＇ with being located on tailgate valve block connect, and actuator port B2 ＇ are with setting
Oil-out B2 connections on the feeding valve block；Control port K3 connects with the control port of the hydraulic control one-way valve, control
Hydraulic fluid port K4 connects with the internal control hydraulic fluid port K5；
When three six-way valves are in upper, control port K4 is turned on actuator port B2 ＇, and actuator port A1 ＇ and B1 ＇ are led
It is logical, control port K3 and actuator port A2 ＇ cut-offs, three position five-way valve is in upper during for realizing rotation motor reversion, from
And clamper is set to open to realize automatic rotary stacks；When three six-way valves are in the next, control port K4 and working oil
Mouth A2 ＇ conductings, control port K3 turn on actuator port B1 ＇, actuator port A1 ＇ and B2 ＇ cut-offs；For opening hydraulic control one-way valve
Feed cylinder is set to float so that drilling rod is threaded off.
2. all-hydraulic tunnel drilling rig multiple directional control valve according to claim 1, it is characterized in that：Three six-way valves are in
During middle position, control port K4 turns on actuator port B2 ＇, and control port K3 turns on actuator port B1 ＇, actuator port A1 ＇ and
A2 ＇ end.
3. all-hydraulic tunnel drilling rig multiple directional control valve according to claim 1, it is characterized in that：The rotary valve plate includes one
Individual four five-way valves, four five-way valves include oil inlet P1, actuator port A1 and B1, oil return inlet T and internal work hydraulic fluid port C1；
The oil inlet P 1 is used to connect underground drill rig main pump, and actuator port A1 and B1 are respectively used to connect underground drill rig rotation motor
Forward and backward oil inlet.
4. all-hydraulic tunnel drilling rig multiple directional control valve according to claim 3, it is characterized in that：At four five-way valves
When middle position, the oil inlet P 1 turns on actuator port A1 and B1 and internal work hydraulic fluid port C1, oil return inlet T cut-off；When this
Four five-way valves be in first it is upper when, the oil inlet P 1 turns on actuator port A1, and actuator port B1 and internal work are oily
Mouth C1 conductings, oil return inlet T cut-off；When four five-way valves are upper in second, the oil inlet P 1 is led with actuator port A1
It is logical, actuator port B1 and oil return inlet T conducting, internal work hydraulic fluid port C1 cut-offs；When four five-way valves be in it is the next when, it is described enter
Hydraulic fluid port P1 turns on actuator port B1, and actuator port A1 turns on internal work hydraulic fluid port C1, oil return inlet T cut-off.
5. all-hydraulic tunnel drilling rig multiple directional control valve according to claim 1, it is characterized in that：The feeding valve block includes one
Individual three-position four-way valve, the three-position four-way valve include the ＇ of oil inlet P 2, actuator port A2 ＇ ＇ and B2 and oil return inlet T, the ＇ of oil inlet P 2
Connected respectively by internal galleries with the oil inlet P 2 and internal work hydraulic fluid port C1, actuator port A2 ＇ ＇ respectively with actuator port
The oil inlet of A2 ＇ and the hydraulic control one-way valve being located on tailgate valve block is connected by internal galleries, actuator port B2 and the work
Make hydraulic fluid port B2 ＇ to connect by internal galleries, for connecting the rodless cavity of underground drill rig feed oil cylinder.
6. all-hydraulic tunnel drilling rig multiple directional control valve according to claim 1, it is characterized in that：The tailgate valve block includes one
Individual tailgate valve body and the hydraulic control one-way valve being located on the valve body, actuator port A2 is provided with tailgate valve body, for even
Connect the rod chamber of underground drill rig feed oil cylinder.
7. all-hydraulic tunnel drilling rig multiple directional control valve according to claim 5, it is characterized in that：In the oil inlet P 2 with entering
Sequence valve is provided between hydraulic fluid port P2 ＇, for providing the oil with certain pressure for the inside oil inlet C2 of the three position five-way valve
Liquid, so that it is guaranteed that there is certain oil pressure all the time to clamp drilling rod in the clamping oil pocket of underground drill rig clamper, prevent drilling rod from sliding.
8. the all-hydraulic tunnel drilling rig multiple directional control valve according to claim 3 or 4, it is characterized in that：It is upper in rotary valve plate
Main overflow valve is provided between oil inlet P 1 and oil return inlet T, system is damaged for preventing the oil pressure for entering internal system too high.
9. the all-hydraulic tunnel drilling rig multiple directional control valve according to claim 3 or 4, it is characterized in that：Four five-way valves
For hand-operated direction valve.
10. all-hydraulic tunnel drilling rig multiple directional control valve according to claim 1, it is characterized in that：Three six-way valves are
Hand-operated direction valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721207111.5U CN207178343U (en) | 2017-09-19 | 2017-09-19 | All-hydraulic tunnel drilling rig multiple directional control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721207111.5U CN207178343U (en) | 2017-09-19 | 2017-09-19 | All-hydraulic tunnel drilling rig multiple directional control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207178343U true CN207178343U (en) | 2018-04-03 |
Family
ID=61748791
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721207111.5U Withdrawn - After Issue CN207178343U (en) | 2017-09-19 | 2017-09-19 | All-hydraulic tunnel drilling rig multiple directional control valve |
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| Country | Link |
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| CN (1) | CN207178343U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107448430A (en) * | 2017-09-19 | 2017-12-08 | 锦州力特液压科技有限公司 | All-hydraulic tunnel drilling rig multiple directional control valve |
| CN110778557A (en) * | 2019-11-14 | 2020-02-11 | 锦州力特液压科技有限公司 | Multi-way reversing valve of multifunctional tunnel drilling machine |
| CN112780627A (en) * | 2021-03-03 | 2021-05-11 | 徐州威世泽机电设备有限公司 | Multi-way valve and hydraulic system |
-
2017
- 2017-09-19 CN CN201721207111.5U patent/CN207178343U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107448430A (en) * | 2017-09-19 | 2017-12-08 | 锦州力特液压科技有限公司 | All-hydraulic tunnel drilling rig multiple directional control valve |
| CN107448430B (en) * | 2017-09-19 | 2023-05-30 | 锦州力特液压科技有限公司 | All-hydraulic tunnel drilling machine multi-way reversing valve |
| CN110778557A (en) * | 2019-11-14 | 2020-02-11 | 锦州力特液压科技有限公司 | Multi-way reversing valve of multifunctional tunnel drilling machine |
| CN110778557B (en) * | 2019-11-14 | 2024-05-10 | 锦州力特液压科技有限公司 | Multi-way reversing valve of multifunctional tunnel drilling machine |
| CN112780627A (en) * | 2021-03-03 | 2021-05-11 | 徐州威世泽机电设备有限公司 | Multi-way valve and hydraulic system |
| CN112780627B (en) * | 2021-03-03 | 2022-12-20 | 徐州威世泽机电设备有限公司 | Multi-way valve and hydraulic system |
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