阅读说明：本技术 一种全新煤矿定向钻机系统集成阀组 (Brand-new coal mine directional drilling machine system integrated valve set ) 是由 高志 董然 张志斌 王艳丹 付卫坤 王波 王强 于 2021-08-18 设计创作，主要内容包括：本发明属于集成阀组技术领域,尤其是一种全新煤矿定向钻机系统集成阀组,针对现有技术中夹和后卡盘,动作为单独控制,钻机使用效率不高,安全性以及维修维护等各方面都存在不足的问题,现提出如下方案,其包括泵、油缸、夹盘、二位二通液控阀、减压阀和第二二位三通液控换向阀,泵上连接有X给油口,减压阀与泵相连,二位二通液控阀和第二二位三通液控换向阀与减压阀相连,夹盘上连接有动力头马达,油缸上连接有第一液压进口和第二液压进口。本发明前后卡盘持器配合给进油缸前后运动的联动动作模式,弥补了传统钻机仅能单动控制的效率低,有效提高钻机的使用效率,增加产品的可操作性,大大提高了钻头调角的控制精度。(The invention belongs to the technical field of integrated valve banks, and particularly relates to an integrated valve bank of a brand new coal mine directional drilling machine system, which aims at the problems that in the prior art, the actions of a clamp and a rear chuck are independently controlled, the drilling machine is not high in use efficiency, and the safety, the maintenance and the like are insufficient. The front and rear chuck holders are matched with the linkage action mode of the front and rear movement of the feeding oil cylinder, so that the low efficiency that the traditional drilling machine can only be controlled by single action is overcome, the use efficiency of the drilling machine is effectively improved, the operability of products is improved, and the control precision of the drill bit angle modulation is greatly improved.)

1. The brand new integrated valve bank of the coal mine directional drilling machine system comprises a pump, an oil cylinder (11), a chuck, a two-position two-way hydraulic control valve (7), a pressure reducing valve (8) and a second two-position three-way hydraulic control reversing valve (9), wherein an X oil supply port is connected to the pump, the pressure reducing valve (8) is connected to the pump, the two-position two-way hydraulic control valve (7) and the second two-position three-way hydraulic control reversing valve (9) are connected to the pressure reducing valve (8), a power head motor is connected to the chuck, a first hydraulic inlet (12) and a second hydraulic inlet (13) are connected to the oil cylinder (11), a tripping three-position four-way hydraulic control reversing valve (5) is connected to the tripping three-position four-way hydraulic control reversing valve (5), four main valve core reversing valves (6) are respectively connected to an F1 load sensitive valve, The F2 load sensitive valve, the F3 load sensitive valve and the F4 load sensitive valve are arranged on the chuck, the chuck comprises a front clamp and a rear chuck, a first two-position three-way hydraulic control reversing valve (1) is connected to the rear chuck, a two-position four-way hydraulic control reversing valve (2) is connected to the front clamp, a first three-position four-way hydraulic control reversing valve (3) and a second three-position four-way hydraulic control reversing valve (4) are connected to the chuck, a three-position four-way hydraulic control reversing valve (5) is connected to the three-position four-way hydraulic control reversing valve (3) and the three-position four-way hydraulic control reversing valve (4) when the chuck is lifted and lowered, working oil ports (10) are connected to the working oil ports (10), an overflow valve A and an overflow valve B are connected to the two-position three-way hydraulic control reversing valve (1), the two-position four-way hydraulic control reversing valve (2), the first three-position four-way hydraulic control reversing valve (3), the second three-position four-way hydraulic control reversing valve (4), the three-position four-way hydraulic control reversing valve (5) is lifted and lowered when the chuck is lifted and lowered, The main valve core reversing valves (6) are communicated with the pump.

2. The brand new coal mine directional drilling machine system integrated valve bank according to claim 1, wherein a fourth special valve core F8 is connected to the first two-position three-way hydraulic control directional control valve (1), a fifth special valve core F9 is connected to the two-position four-way hydraulic control directional control valve (2), a third special valve core F7 is connected to the three-position four-way hydraulic control directional control valve (3), a second special valve core F6 is connected to the second three-position four-way hydraulic control directional control valve (4), and a first special valve core F5 is connected to the trip-up three-position four-way hydraulic control directional control valve (5).

3. The brand new coal mine directional drilling machine system integrated valve bank as claimed in claim 1, wherein an a1 oil feeding port and a b1 oil feeding port are connected to the F1 load sensitive valve, an a2 oil feeding port and a b2 oil feeding port are connected to the F2 load sensitive valve, an a3 oil feeding port and a b3 oil feeding port are connected to the F3 load sensitive valve, and an a4 oil feeding port and a b4 oil feeding port are connected to the F4 load sensitive valve.

4. The brand new coal mine directional drilling machine system integration valve bank as claimed in claim 1, wherein a5 oil supply port and b5 oil supply port are connected to the tripping three-position four-way hydraulic control reversing valve (5).

5. The brand new coal mine directional drilling machine system integrated valve bank as claimed in claim 1, wherein a6 oil supply port and b6 oil supply port are connected to the second three-position four-way hydraulic control directional control valve (4).

6. The brand new coal mine directional drilling machine system integrated valve bank as claimed in claim 1, wherein a7 oil supply port and b7 oil supply port are connected to the first three-position four-way hydraulic control directional control valve (3).

7. The brand new coal mine directional drilling machine system integration valve bank according to claim 1, characterized in that a piston (14) and a piston rod (16) are connected to the oil cylinder (11), the piston (14) is slidably mounted in the oil cylinder (11), and the outside of the oil cylinder (11) is communicated with a pressure cylinder (15).

8. The brand new coal mine directional drilling machine system integration valve bank according to claim 7, characterized in that a pressure piston (17) is slidably mounted in the pressure cylinder (15), a pressure rod (18) is connected to the top of the pressure piston (17), an alarm lamp (23) is connected to the top end of the pressure rod (18), an overflow pipe (20) is communicated with the outer side of the pressure cylinder (15), a collection box (21) is connected to the overflow pipe (20), a spring (19) is sleeved on the outer side of the pressure rod (18), the top end of the spring (19) is connected with the inner wall of the top of the pressure cylinder (15), and the bottom end of the spring (19) is connected with the top of the pressure piston (17).

9. The brand new coal mine directional drilling machine system integration valve bank as claimed in claim 8, wherein a guide rod (22) is connected to the top of the pressure piston (17), a through hole (24) is formed in the top of the pressure cylinder (15), and the guide rod (22) is movably connected with the through hole (24).

10. The brand new coal mine directional drilling machine system integration valve bank according to claim 8, wherein an L plate (27) is connected to the top end of the pressure cylinder (15), a turnover plate (25) is rotatably installed on the side wall of the L plate (27), a first conductive block (28) is connected to the top end of the turnover plate (25), a second conductive block (29) is arranged on the top wall of the L plate (27), the first conductive block (28) and the second conductive block (29) are both connected with an alarm lamp (23), a tension spring (26) is connected to the bottom of the turnover plate (25), and the bottom end of the tension spring (26) is connected with the pressure cylinder (15).

Technical Field

The invention relates to the technical field of integrated valve banks, in particular to a brand new integrated valve bank of a coal mine directional drilling machine system.

Background

The hydraulic system for the crawler-type hydraulic tunnel directional drilling machine for the coal mine is characterized in that a front clamp and a rear clamp are arranged at present, the action is independent control, the motor rotation and the clamp holder are independent control, the screwing-on floating and the screwing-off micro-motion are independent control, the operation mode is low in the using efficiency of the drilling machine, the safety, the maintenance and the like are insufficient, the linkage control of the hydraulic system of the drilling machine is designed for the situations in a small number of enterprises in the market at present, the using efficiency of the drilling machine is properly improved only through the linkage function, and the equipment is inconvenient in debugging, maintenance and screwing-off rod due to the lack of single-action control.

In the prior art, the action of the clamp and the rear chuck is controlled independently, the use efficiency of the drilling machine is not high, the safety, the maintenance and the like are insufficient,

disclosure of Invention

The invention aims to solve the defects that in the prior art, the actions of a clamp and a rear chuck are independently controlled, the use efficiency of a drilling machine is not high, and the safety, the maintenance and the like are insufficient.

In order to achieve the purpose, the invention adopts the following technical scheme:

a brand new integrated valve set of a coal mine directional drilling machine system comprises a pump, an oil cylinder, a chuck, a two-position two-way hydraulic control valve, a pressure reducing valve and a second two-position three-way hydraulic control reversing valve, wherein an X oil supply port is connected to the pump, the pressure reducing valve is connected to the pump, the two-position two-way hydraulic control valve and the second two-position three-way hydraulic control reversing valve are connected to the pressure reducing valve, the two-position two-way hydraulic control valve and the second two-position three-way hydraulic control reversing valve control the circuit of the pressure reducing valve to be disconnected, the maximum pressure of the pump is limited when the upper part is buckled, a power head motor is connected to the chuck, a first hydraulic inlet and a second hydraulic inlet are connected to the oil cylinder, a drilling-up three-position four-way reversing valve is connected to the first hydraulic inlet and the second hydraulic inlet, four main valve core reversing valves are connected to the drilling-up three-position four-way hydraulic control reversing valve, the drilling-up three-position four-way hydraulic control reversing valve is connected to the drilling-up three-way hydraulic control reversing valve, the drilling up is connected to the four main valve cores are respectively connected to an F1 load sensitive valve, an F2 load sensitive valve, an F3 load sensitive valve and an F4 load sensitive valve, the chuck comprises a front clamp and a rear chuck, the rear chuck is connected with a first two-position three-way hydraulic control reversing valve, the first two-position three-way hydraulic control reversing valve controls a control valve for clamping and opening the rear chuck, and meanwhile, the first two-position three-way hydraulic control reversing valve can force the rear chuck to open; the front clamp is connected with a two-position four-way hydraulic control reversing valve which controls the front clamp to clamp and open; meanwhile, the two-position four-way hydraulic control reversing valve can be clamped by a forced front clamp, a first three-position four-way hydraulic control reversing valve and a second three-position four-way hydraulic control reversing valve are connected to the chuck, the first three-position four-way hydraulic control reversing valve controls the clamping and the opening of the rear chuck, the second three-position four-way hydraulic control reversing valve controls the clamping and the opening of the front clamp, the three-position four-way hydraulic control reversing valve for tripping is connected with the three-position four-way hydraulic control reversing valve and the three-position four-way hydraulic control reversing valve, working oil ports are connected to the four main valve core reversing valves, an overflow valve A and an overflow valve B are connected to the working oil ports, and the two-position three-way hydraulic control reversing valve, the two-position four-way hydraulic control reversing valve, the first three-position four-way hydraulic control reversing valve, the second three-position four-way hydraulic control reversing valve for tripping, and the main valve reversing valve are communicated with the pump.

Preferably, the first two-position three-way hydraulic control directional control valve is connected with a fourth special valve core F8, the two-position four-way hydraulic control directional control valve is connected with a fifth special valve core F9, the three-position four-way hydraulic control directional control valve is connected with a third special valve core F7, the second three-position four-way hydraulic control directional control valve is connected with a second special valve core F6, and the three-position four-way hydraulic control directional control valve for tripping is connected with a first special valve core F5.

Preferably, the F1 load sensitive valve is connected with an a1 oil supply port and a b1 oil supply port, the F2 load sensitive valve is connected with an a2 oil supply port and a b2 oil supply port, the F3 load sensitive valve is connected with an a3 oil supply port and a b3 oil supply port, the F4 load sensitive valve is connected with an a4 oil supply port and a b4 oil supply port, and the three-position four-way hydraulic control directional control valve for tripping is connected with an a5 oil supply port and a b5 oil supply port.

Preferably, the second three-position four-way hydraulic control reversing valve is connected with an a6 oil supply port and a b6 oil supply port, and the first three-position four-way hydraulic control reversing valve is connected with an a7 oil supply port and a b7 oil supply port.

Preferably, the oil cylinder is connected with a piston and a piston rod, the piston is slidably mounted in the oil cylinder, and the outer side of the oil cylinder is communicated with a pressure cylinder.

Preferably, slidable mounting has pressure piston in the pressure cylinder, and pressure piston's top is connected with the pressure pole, and the top of pressure pole is connected with the alarm lamp, and the outside intercommunication of pressure cylinder has the overflow pipe, is connected with the collecting box on the overflow pipe, and the outside cover of pressure pole is equipped with the spring, and the top of spring links to each other with the top inner wall of pressure cylinder, and the bottom of spring links to each other with pressure piston's top.

Preferably, the top of the pressure piston is connected with a guide rod, the top of the pressure cylinder is provided with a through hole, and the guide rod is movably connected with the through hole.

Preferably, the top of a pressure section of thick bamboo is connected with the L board, and the lateral wall of L board rotates installs the returning face plate, and the top of returning face plate is connected with first conducting block, and the roof of L board is provided with the second conducting block, and first conducting block and second conducting block all link to each other with the alarm lamp, and the bottom of returning face plate is connected with the extension spring, and the bottom of extension spring links to each other with a pressure section of thick bamboo.

Compared with the prior art, the invention has the advantages that:

1. the linkage action mode that the front chuck holder and the rear chuck holder are matched with the feed oil cylinder to move back and forth makes up the defects that the traditional drilling machine only can be controlled by single action and has low efficiency and complex operation, effectively improves the service efficiency of the drilling machine, and meets the requirement of high efficiency of the directional drilling machine in mines and oil exploitation;

2. the slow rotation control is added, the problem that the precision of adjusting the angle of the drill bit is low when the direction of the deep hole drill bit is deviated in the traditional directional drilling machine is solved, the operability of a product is improved, the control precision of the angle adjustment of the drill bit is greatly improved, and the operation difficulty is greatly simplified;

3. the mode of buckling the drill rod of the traditional drilling machine is optimized, so that the buckling and the unbuckling of the drill rod are all realized by one-key operation, the handle of the upper buckle is pushed, the motor automatically rotates forwards at a proper speed, the feeding oil cylinder is automatically in a floating state, the maximum pressure of the main pump is automatically limited, and the rotary motor is automatically switched to a maximum output torque mode; the shackle handle is pushed, the motor automatically reverses at a proper speed, the feeding oil cylinder automatically moves backwards at a speed matched with the thread pitch of the drill rod, and the rotary motor is automatically switched to a maximum output torque mode; therefore, the control can not only reduce the complexity of operation, but also fix the rotating speed of the motor for loading and unloading the rod and the advancing and retreating speeds of the feeding oil cylinder, ensure the optimal matching, furthest reduce the damage of the drill rod buckle type and greatly improve the service life of the drill rod.

4. The valve bank integrates the single-action function of the front and rear chuck holders in consideration of the requirements of special working conditions such as maintenance and debugging of the drilling machine on the single-action mode; single-action control of the front and rear chuck holders can be realized through control of two valve cores F6 and F7;

5. and meanwhile, the linkage and single-action functions have an interlocking function, so that the use safety and reliability of the product are ensured.

Drawings

FIG. 1 is a schematic diagram of an integrated valve set of a brand new coal mine directional drilling machine system according to the present invention;

FIG. 2 is a schematic view of a cylinder structure according to the present invention;

FIG. 3 is a schematic view of a connection structure of an oil cylinder and a pressure cylinder according to the present invention;

fig. 4 is an enlarged schematic structural diagram of a portion a in fig. 3 according to the present invention.

In the figure: in the figure: 1. a first two-position three-way hydraulic control reversing valve; 2. a two-position four-way hydraulic control reversing valve; 3. a first three-position four-way hydraulic control reversing valve; 4. a second three-position four-way hydraulic control reversing valve; 5. a three-position four-way hydraulic control reversing valve for tripping; 6. a main spool reversing valve; 7. a two-position two-way hydraulic control valve; 8. a pressure reducing valve; 9. a second two-position three-way hydraulic control reversing valve; 10. a working oil port; 11. an oil cylinder; 12. a first hydraulic inlet; 13. a second hydraulic inlet; 14. a piston; 15. a pressure cylinder; 16. a piston rod; 17. a pressure piston; 18. a pressure lever; 19. a spring; 20. an overflow pipe; 21. a collection box; 22. a guide bar; 23. an alarm lamp; 24. a through hole; 25. a turnover plate; 26. a tension spring; 27. an L plate; 28. a first conductive block; 29. and a second conductive block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-4, a brand new integrated valve set of a directional drilling machine system for a coal mine comprises a pump, an oil cylinder 11, a chuck, a two-position two-way hydraulic control valve 7, a pressure reducing valve 8 and a second two-position three-way hydraulic control reversing valve 9, wherein an X oil supply port is connected to the pump, the pressure reducing valve 8 is connected to the pump, the two-position two-way hydraulic control valve 7 and the second two-position three-way hydraulic control reversing valve 9 are connected to the pressure reducing valve 8, the two-position two-way hydraulic control valve 7 and the second two-position three-way hydraulic control reversing valve 9 control the circuit of the pressure reducing valve 8 to be disconnected, the maximum pressure of the pump is limited when the pressure is buckled up, a power head motor is connected to the chuck, a first hydraulic inlet 12 and a second hydraulic inlet 13 are connected to the oil cylinder 11, a tripping three-position four-way hydraulic control reversing valve 5 is connected to the tripping three-position four-way hydraulic control reversing valves 6, and the four main-valve-core reversing valves 6 are respectively connected to an F1 load sensing valve, The chuck comprises a front clamp and a rear chuck, the rear chuck is connected with a first two-position three-way hydraulic control reversing valve 1, the first two-position three-way hydraulic control reversing valve 1 controls a control valve for clamping and opening the rear chuck, and meanwhile, the first two-position three-way hydraulic control reversing valve 1 can force the rear chuck to open; the front clamp is connected with a two-position four-way hydraulic control reversing valve 2, and the two-position four-way hydraulic control reversing valve 2 controls the front clamp to clamp and open; meanwhile, the two-position four-way hydraulic control reversing valve 2 can be clamped by a forced front clamp, a chuck is connected with a first three-position four-way hydraulic control reversing valve 3 and a second three-position four-way hydraulic control reversing valve 4, the first three-position four-way hydraulic control reversing valve 3 controls the clamping and opening of a rear chuck, the second three-position four-way hydraulic control reversing valve 4 controls the clamping and opening of the front clamp, the three-position four-way hydraulic control reversing valve 5 for tripping is connected with the three-position four-way hydraulic control reversing valve 3 and the three-position four-way hydraulic control reversing valve 4, working oil ports 10 are connected with the four main valve core reversing valves 6, an overflow valve A and an overflow valve B are connected with the working oil ports 10, and the two-position three-way hydraulic control reversing valve 1, the two-position four-way hydraulic control reversing valve 2, the first three-position four-way hydraulic control reversing valve 3, the second four-way three-position hydraulic control reversing valve 4 for tripping, the three-position four-way hydraulic control reversing valve 5 and the main valve core reversing valve 6 are communicated with a pump.

In this embodiment, the first two-position three-way hydraulic control directional control valve 1 is connected with a fourth special valve core F8, the two-position four-way hydraulic control directional control valve 2 is connected with a fifth special valve core F9, the three-position four-way hydraulic control directional control valve 3 is connected with a third special valve core F7, the second three-position four-way hydraulic control directional control valve 4 is connected with a second special valve core F6, and the trip three-position four-way hydraulic control directional control valve 5 is connected with a first special valve core F5.

In the embodiment, an a1 oil supply port and a b1 oil supply port are connected to an F1 load sensitive valve, an a2 oil supply port and a b2 oil supply port are connected to an F2 load sensitive valve, an a3 oil supply port and a b3 oil supply port are connected to an F3 load sensitive valve, an a4 oil supply port and a b4 oil supply port are connected to an F4 load sensitive valve, and an a5 oil supply port and a b5 oil supply port are connected to a trip three-position four-way hydraulic control reversing valve 5.

In the embodiment, the a5 oil supply port of the first special valve core F5 supplies oil, the valve is in a drilling mode, the handle of the feeding oil cylinder is pushed to enable the oil cylinder 11 to advance, at the moment, the front clamp is automatically opened, and the rear chuck is automatically clamped; on the contrary, the b5 oil supply port of the first special valve core F5 supplies oil, so that the oil cylinder 11 is retracted, the front clamp is automatically clamped, and the rear chuck is automatically opened;

the valve is in a drill tripping mode, a handle of the feeding oil cylinder is pushed to enable the oil cylinder 11 to retreat, at the moment, the front clamp is automatically opened, and the rear chuck is automatically clamped; on the contrary, when the oil cylinder 11 is advanced, the front clamp is automatically clamped, and the rear chuck is automatically opened.

In this embodiment, the second three-position four-way hydraulic control directional control valve 4 is connected with an a6 oil supply port and a b6 oil supply port, and the first three-position four-way hydraulic control directional control valve 3 is connected with an a7 oil supply port and a b7 oil supply port.

In the embodiment, oil is supplied to the X port, the pressure limit is set by the highest pressure reducing valve 8 of the main pump, so that the screw thread of the drill rod is protected from being damaged, the oil is supplied to the a6 oil supply port of the second special valve core F6, the linkage function is failed, and the front clamp is in an independent control mode; the a7 oil supply port of the third special valve core F7 supplies oil, the linkage function is failed, and the rear chuck is in an independent control mode.

In the embodiment, a piston 14 and a piston rod 16 are connected to an oil cylinder 11, the piston 14 is slidably mounted in the oil cylinder 11, the outer side of the oil cylinder 11 is communicated with a pressure cylinder 15, a pressure piston 17 is slidably mounted in the pressure cylinder 15, the top of the pressure piston 17 is connected with a pressure rod 18, the top end of the pressure rod 18 is connected with an alarm lamp 23, the outer side of the pressure cylinder 15 is communicated with an overflow pipe 20, the overflow pipe 20 is connected with a collection box 21, the outer side of the pressure rod 18 is sleeved with a spring 19, the top end of the spring 19 is connected with the inner wall of the top of the pressure cylinder 15, the bottom end of the spring 19 is connected with the top of the pressure piston 17, the top of the pressure piston 17 is connected with a guide rod 22, the top of the pressure cylinder 15 is provided with a through hole 24, the guide rod 22 is movably connected with the top end of the pressure cylinder 15 through hole 24 and is connected with an L plate 27, a turnover plate 25 is rotatably mounted on the side wall of the L plate 27, the top end of the turnover plate 25 is connected with a first conductive block 28, the top wall of L board 27 is provided with second conducting block 29, and first conducting block 28 and second conducting block 29 all link to each other with alarm lamp 23, and the bottom of returning face plate 25 is connected with extension spring 26, and the bottom of extension spring 26 links to each other with pressure cylinder 15.

In this embodiment, oil enters the oil cylinder 11 through the first hydraulic inlet 12, the piston 14 and the piston rod 16 are pushed to move, the piston rod 16 pushes the drilling machine to move, the drilling machine is blocked, the pressure piston 17 is pushed to move upwards when the internal pressure of the oil cylinder 11 is increased, the pressure piston 17 pushes the pressure rod 18 to move upwards and compress the spring 19, after the pressure reaches a certain degree, the pressure piston 17 moves to the upper side of the overflow pipe 20, the oil flows out through the overflow pipe 20, the internal pressure of the oil cylinder 11 is released, meanwhile, the guide rod 22 penetrates through the through hole 24 to push the turnover plate 25 to turn over, the turnover plate 25 drives the first conductive block 28 to contact with the second conductive block 29, the alarm lamp 23 flickers to remind a worker that the pressure of the oil cylinder 11 is too high, and the inspection is required.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.