Directional drilling hydraulic system of kilometer directional drilling machine

Abstract

The invention relates to the technical field of hydraulic systems, and discloses a directional drilling hydraulic system of a kilometer directional drilling machine, which comprises a hydraulic pump station, a walking unit, a drilling main unit, a drilling auxiliary unit and a stabilizing unit, the hydraulic pump station is connected with the walking unit, the drilling main unit, the drilling auxiliary unit and the stabilizing unit; the main pump assembly and the auxiliary pump assembly do not influence each other and run independently relatively, so that two systems for providing hydraulic power by the main pump assembly and the auxiliary pump assembly work simultaneously but do not interfere with each other, the stability and reliability of the systems are ensured, the operation steps of the directional drilling machine are simplified, the construction safety of the drilling machine is improved, and the failure rate of the hydraulic system of the drilling machine is reduced. The main pump assembly and the auxiliary pump assembly work independently, the main pump assembly provides hydraulic power for the walking unit and the drilling main unit, the auxiliary pump assembly provides hydraulic power for the drilling auxiliary unit and the stabilizing unit, drilling machine faults caused by misoperation are reduced, the construction safety of the drilling machine is improved, and the drilling efficiency of the drilling machine is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic systems, in particular to a directional drilling hydraulic system for a kilometer-long directional drilling rig. Background Art

[0002] A drilling rig is a complex machine consisting of a machine, a unit and a mechanism. A drilling rig is a mechanical device that drives the drill to drill underground to obtain physical geological data during the exploration or development of mineral resources (including solid minerals, liquid minerals, gas minerals, etc.). It is also called a drilling machine. Its main function is to drive the drill to break the rock at the bottom of the hole and lower or pull out the drill in the hole. It can be used to drill cores, ore cores, rock cuttings, gas samples, liquid samples, etc. to explore the underground geology and mineral resources.

[0003] The crawler-type fully hydraulic 1,000-meter directional drilling rig is a hydraulic system that controls the drilling rig to realize its own working actions when operating in coal mines for gas extraction, excavation, pressure relief holes, and drainage holes. This hydraulic system solves the problem that when the directional drilling rig is working, the drilling system (main and auxiliary systems), the stabilization system, and the walking system interfere with each other due to accidental operation, which in turn affects the normal operation of the drilling rig, causes drilling rig failures, and endangers the safety of construction personnel.

[0004] The traditional hydraulic system uses the main and auxiliary pumps to control the drilling system together, so that the main and auxiliary systems, the stabilization system, and the travel system can operate. During the operation of the drilling rig, each system has no closed-loop protection and is not completely independent, with a low safety factor and cumbersome operation and control. Therefore, a directional drilling hydraulic system for a kilometer-long directional drilling rig is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a directional drilling hydraulic system for a kilometer directional drilling rig to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a directional drilling hydraulic system for a kilometer-long directional drilling rig, comprising a hydraulic pump station, a traveling unit, a main drilling unit, an auxiliary drilling unit and a stabilizing unit;

[0007] The hydraulic pump station is connected to the travel unit, the main drilling unit, the auxiliary drilling unit and the stabilizing unit;

[0008] The hydraulic pump station is used to output high-pressure oil to provide power for the entire hydraulic system;

[0009] The walking unit is used to control the crawler body of the drilling rig to complete the walking action of the drilling rig;

[0010] The drilling main unit is used to provide the drilling rig with drilling rotation and feeding actions;

[0011] The drilling auxiliary unit is used to control the clamp, hydraulic chuck and brake device to complete the hydraulic chuck clamping or loosening, clamping or loosening and brake device drilling auxiliary actions;

[0012] The stabilizing unit is used to control the oil cylinder to complete the drilling rig stabilization and angle adjustment actions.

[0013] Preferably, the hydraulic pump station comprises a motor, a main pump assembly and an auxiliary pump assembly, wherein the output shaft of the motor is connected to the input shafts of the main pump assembly and the auxiliary pump assembly respectively;

[0014] The motor is used to convert electrical energy into hydraulic energy of the main pump assembly and the auxiliary pump assembly, so that the main pump assembly and the auxiliary pump assembly output pressure oil to provide power for the hydraulic system;

[0015] The main pump assembly is used to provide hydraulic power to the walking unit and the main drilling unit;

[0016] The auxiliary pump assembly is used to provide hydraulic power for the drilling auxiliary unit and the stabilizing unit.

[0017] Preferably, the travel unit comprises a first control valve, a left travel motor, a right travel motor and a travel switch;

[0018] The first control valve is used to control the actions of the left travel motor and the right travel motor;

[0019] The left travel motor is used to provide travel power for the left crawler track of the drilling rig;

[0020] The right travel motor is used to provide the right crawler track of the drilling rig with travel power;

[0021] The travel switch is used to control the locking state of the left travel motor and the right travel motor.

[0022] Preferably, the drilling main unit comprises a second control valve, a rotary motor and a feed cylinder, wherein the second control valve is connected to the rotary motor and the feed cylinder respectively;

[0023] The second control valve is used to control the actions of the rotary motor and the feed cylinder;

[0024] The rotary motor is used to provide rotary power for the drilling rig;

[0025] The feed cylinder is used to provide power for the drilling rig to perform drilling.

[0026] Preferably, the drilling auxiliary unit comprises a third control valve, a clamp, a hydraulic chuck and a brake device, wherein the third control valve is connected to the clamp, the hydraulic chuck and the brake device respectively;

[0027] The third control valve is used to control the actions of the clamp, the hydraulic chuck and the brake device;

[0028] The clamp is used to disassemble and assemble the drill rod after cooperating with the hydraulic chuck;

[0029] The hydraulic chuck is used to clamp the drill pipe;

[0030] The braking device is used to brake the rotation of the drill rod during directional drilling to prevent the drill rod from rotating due to the reaction of the screw motor in the hole.

[0031] Preferably, the stabilizing unit comprises a fourth control valve and an oil cylinder, wherein the fourth control valve is connected to the oil cylinder;

[0032] The fourth control valve is used to control the action of the oil cylinder;

[0033] The oil cylinder is used to adjust the inclination angle of the drilling rig feed body and the stability of the drilling rig.

[0034] Preferably, the liquid outlet of the main pump assembly is connected to the liquid inlet of the first control valve and the second control valve respectively.

[0035] Preferably, the liquid outlet of the auxiliary pump assembly is connected to the liquid inlet of the third control valve and the fourth control valve respectively.

[0036] Compared with the prior art, the present invention adopts the above technical solution and has the following technical effects:

[0037] The main pump assembly and the auxiliary pump assembly of the present invention do not affect each other, operate relatively independently, and have a safety interlocking mechanism, so that the two systems providing hydraulic power of the main pump assembly and the auxiliary pump assembly work simultaneously but do not interfere with each other, thereby ensuring the stability and reliability of the system, simplifying the operating steps of the directional drilling rig, improving the safety of drilling rig construction, and reducing the failure rate of the drilling rig hydraulic system. The main pump assembly and the auxiliary pump assembly work relatively independently, the main pump assembly provides hydraulic power for the walking unit and the main drilling unit, and the auxiliary pump assembly provides hydraulic power for the drilling auxiliary unit and the stabilization unit. The two hydraulic systems operate relatively independently and are provided with a protective control valve, which can greatly simplify the operating steps of the directional drilling rig, reduce drilling rig failures caused by misoperation, improve the safety of drilling rig construction, and effectively improve the drilling efficiency of the drilling rig. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1It is a schematic diagram of system connection of the present invention;

[0040] Figure 2 It is a schematic diagram of the walking unit of the present invention;

[0041] Figure 3 It is a schematic diagram of the main drilling unit of the present invention;

[0042] Figure 4 It is a schematic diagram of a drilling auxiliary unit of the present invention;

[0043] Figure 5 It is a schematic diagram of a stabilizing unit of the present invention.

[0044] Explanation of the accompanying drawings: 1. Hydraulic pump station; 2. Travel unit; 3. Drilling main unit; 4. Drilling auxiliary unit; 5. Stabilizing unit; 6. Motor; 7. Main pump assembly; 8. Auxiliary pump assembly; 9. First control valve; 10. Left travel motor; 11. Right travel motor; 12. Travel switch; 13. Second control valve; 14. Rotary motor; 15. Feed cylinder; 16. Third control valve; 17. Clamp; 18. Hydraulic chuck; 19. Braking device; 20. Fourth control valve; 21. Cylinder. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0047] Example

[0048] See also Figure 1-5 The present invention provides a technical solution: a kilometer directional drilling hydraulic system, comprising a hydraulic pump station 1, a traveling unit 2, a main drilling unit 3, an auxiliary drilling unit 4 and a stabilizing unit 5; the hydraulic pump station 1 is connected with the traveling unit 2, the main drilling unit 3, the auxiliary drilling unit 4 and the stabilizing unit 5;

[0049] Hydraulic pump station 1, used to output high-pressure oil to provide power for the entire hydraulic system;

[0050] The hydraulic pump station 1 comprises a motor 6, a main pump assembly 7 and an auxiliary pump assembly 8, wherein the output shaft of the motor 6 is connected to the input shafts of the main pump assembly 7 and the auxiliary pump assembly 8 respectively;

[0051] The motor 6 is used to convert electrical energy into hydraulic energy of the main pump assembly 7 and the auxiliary pump assembly 8, so that the main pump assembly 7 and the auxiliary pump assembly 8 output pressure oil to provide power for the hydraulic system;

[0052] A main pump assembly 7, used to provide hydraulic power to the traveling unit 2 and the main drilling unit 3;

[0053] The auxiliary pump assembly 8 is used to provide hydraulic power to the drilling auxiliary unit 4 and the stabilizing unit 5 .

[0054] Walking unit 2, used to control the crawler body of the drilling rig to complete the walking action of the drilling rig;

[0055] The travel unit 2 includes a first control valve 9, a left travel motor 10, a right travel motor 11 and a travel switch 12;

[0056] The first control valve 9 is used to control the actions of the left travel motor 10 and the right travel motor 11;

[0057] The left travel motor 10 is used to provide the left crawler track of the drilling rig with travel power;

[0058] The right travel motor 11 is used to provide the right crawler track of the drilling rig with travel power;

[0059] The travel switch 12 is used to control the locking state of the left travel motor 10 and the right travel motor 11.

[0060] The drilling main unit 3 is used to provide the drilling machine with drilling rotation and feeding actions;

[0061] The drilling main unit 3 includes a second control valve 13, a rotary motor 14 and a feed cylinder 15, and the second control valve 13 is connected to the rotary motor 14 and the feed cylinder 15 respectively;

[0062] The second control valve 13 is used to control the actions of the rotary motor 14 and the feed cylinder 15;

[0063] A rotary motor 14, used to provide rotary power for the drilling rig;

[0064] The feed cylinder 15 is used to provide the drilling rig with power for drilling.

[0065] The drilling auxiliary unit 4 is used to control the clamp 17, the hydraulic chuck 18 and the brake device 19 to complete the clamping or loosening of the hydraulic chuck 18, the clamping or loosening of the clamp 17 and the drilling auxiliary action of the brake device 19;

[0066] The drilling auxiliary unit 4 includes a third control valve 16, a clamp 17, a hydraulic chuck 18 and a brake device 19, and the third control valve 16 is connected to the clamp 17, the hydraulic chuck 18 and the brake device 19 respectively;

[0067] The third control valve 16 is used to control the actions of the clamp 17, the hydraulic chuck 18 and the brake device 19;

[0068] The clamp 17 is used to disassemble and assemble the drill rod after cooperating with the hydraulic chuck 18. The clamp 17 is composed of a housing, front and rear end covers, a rubber sleeve, a slip, a spring, a hydraulically controlled one-way valve, etc. The clamp 17 is installed at the front end of the frame and is used to clamp the drill rod to prevent the drill rod from slipping out of the drill hole;

[0069] The hydraulic chuck 18 is used to clamp the drill pipe. The hydraulic chuck 18 is composed of a chuck, a clamp seat, a pressure plate and a hydraulic cylinder. The clamping force is controlled by hydraulic pressure to achieve fixed clamping of the workpiece. In a drilling rig, the hydraulic chuck 18 is usually used in conjunction with the clamp 17 to more efficiently disassemble and assemble the drill pipe;

[0070] The brake device 19 is used to brake the rotation of the drill pipe during directional drilling to prevent the drill pipe from rotating due to the reaction of the screw motor in the hole. The main structure of the brake device 19 is composed of a clutch, a main shaft, gears and a brake. During the directional drilling process, the brake device 19 can be used to control the rotation of the drill pipe to prevent the drill pipe from rotating due to the reaction force of the screw motor in the hole, thereby affecting the directional accuracy.

[0071] The stabilizing unit 5 is used to control the oil cylinder 21 to complete the drilling rig stabilization and angle adjustment actions.

[0072] The stabilizing unit 5 includes a fourth control valve 20 and an oil cylinder 21, and the fourth control valve 20 is connected to the oil cylinder 21;

[0073] The fourth control valve 20 is used to control the action of the oil cylinder 21;

[0074] The oil cylinder 21 is used to adjust the inclination angle of the drilling rig feed body and stabilize the drilling rig.

[0075] The liquid outlet end of the main pump assembly 7 is connected to the liquid inlet end of the first control valve 9 and the second control valve 13 respectively, and the liquid outlet end of the auxiliary pump assembly 8 is connected to the liquid inlet end of the third control valve 16 and the fourth control valve 20 respectively. The main pump assembly 7 and the auxiliary pump assembly 8 do not affect each other and operate relatively independently. They have a safety interlocking mechanism, so that the two systems providing hydraulic power of the main pump assembly 7 and the auxiliary pump assembly 8 work simultaneously but do not interfere with each other, thereby ensuring the stability and reliability of the system, simplifying the operating steps of the directional drilling rig, improving the safety of drilling rig construction, reducing the failure rate of the drilling rig hydraulic system, and effectively improving the drilling efficiency of the drilling rig.

[0076] When the drilling rig is working, the main pump assembly 7 and the auxiliary pump assembly 8 work relatively independently. The main pump assembly 7 provides hydraulic power for the walking unit 2 and the drilling main unit 3, and the auxiliary pump assembly 8 provides hydraulic power for the drilling auxiliary unit 4 and the stabilization unit 5. The two hydraulic systems operate relatively independently and are equipped with a protective control valve, which can greatly simplify the operating steps of the directional drilling rig, reduce drilling rig failures caused by misoperation, improve the safety of drilling rig construction, and effectively improve the drilling efficiency of the drilling rig.

[0077] It will be appreciated by those skilled in the art that the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways without departing from the spirit and teachings of the present invention. All of these combinations and / or combinations fall within the scope of the present invention.

Claims

1. A directional drilling hydraulic system for a kilometer directional drilling rig, characterized in that: It comprises a hydraulic pump station (1), a travel unit (2), a main drilling unit (3), an auxiliary drilling unit (4) and a stabilizing unit (5); The hydraulic pump station (1) is connected to the walking unit (2), the main drilling unit (3), the auxiliary drilling unit (4) and the stabilizing unit (5); The hydraulic pump station (1) is used to output high-pressure oil to provide power for the entire hydraulic system; The walking unit (2) is used to control the crawler body of the drilling rig to complete the walking action of the drilling rig; The drilling main unit (3) is used to provide the drilling machine with drilling rotation and feeding actions; The drilling auxiliary unit (4) is used to control the clamp (17), the hydraulic chuck (18) and the brake device (19) to complete the clamping or loosening of the hydraulic chuck (18), the clamping or loosening of the clamp (17) and the drilling auxiliary action of the brake device (19); The stabilizing unit (5) is used to control the oil cylinder (21) to complete the drilling rig stabilization and angle adjustment actions.

2. A directional drilling hydraulic system for a kilometer-long directional drilling rig according to claim 1, characterized in that: The hydraulic pump station (1) comprises a motor (6), a main pump assembly (7) and an auxiliary pump assembly (8), wherein the output shaft of the motor (6) is connected to the input shafts of the main pump assembly (7) and the auxiliary pump assembly (8) respectively; The motor (6) is used to convert electrical energy into hydraulic energy of the main pump assembly (7) and the auxiliary pump assembly (8), so that the main pump assembly (7) and the auxiliary pump assembly (8) output pressure oil to provide power for the hydraulic system; The main pump assembly (7) is used to provide hydraulic power to the walking unit (2) and the main drilling unit (3); The auxiliary pump assembly (8) is used to provide hydraulic power to the drilling auxiliary unit (4) and the stabilizing unit (5).

3. A directional drilling hydraulic system for a kilometer-long directional drilling rig according to claim 2, characterized in that: The travel unit (2) comprises a first control valve (9), a left travel motor (10), a right travel motor (11) and a travel switch (12); The first control valve (9) is used to control the actions of the left travel motor (10) and the right travel motor (11); The left travel motor (10) is used to provide travel power for the left crawler track of the drilling rig; The right travel motor (11) is used to provide travel power for the crawler track on the right side of the drilling rig; The travel switch (12) is used to control the locking state of the left travel motor (10) and the right travel motor (11).

4. A directional drilling hydraulic system for a kilometer-long directional drilling rig according to claim 3, characterized in that: The drilling main unit (3) comprises a second control valve (13), a rotary motor (14) and a feed cylinder (15), wherein the second control valve (13) is connected to the rotary motor (14) and the feed cylinder (15) respectively; The second control valve (13) is used to control the actions of the rotary motor (14) and the feed cylinder (15); The rotary motor (14) is used to provide rotary power for the drilling rig; The feed cylinder (15) is used to provide power for the drilling rig to perform drilling.

5. A directional drilling hydraulic system for a kilometer-long directional drilling rig according to claim 4, characterized in that: The drilling auxiliary unit (4) comprises a third control valve (16), a clamp (17), a hydraulic chuck (18) and a brake device (19), wherein the third control valve (16) is connected to the clamp (17), the hydraulic chuck (18) and the brake device (19) respectively; The third control valve (16) is used to control the actions of the clamp (17), the hydraulic chuck (18) and the brake device (19); The clamp (17) is used to cooperate with the hydraulic chuck (18) to disassemble and assemble the drill rod; The hydraulic chuck (18) is used to clamp the drill rod; The braking device (19) is used to brake the rotation of the drill rod during directional drilling, so as to prevent the drill rod from rotating due to the reaction of the screw motor in the hole.

6. A directional drilling hydraulic system for a kilometer-long directional drilling rig according to claim 5, characterized in that: The stabilizing unit (5) comprises a fourth control valve (20) and an oil cylinder (21), wherein the fourth control valve (20) is connected to the oil cylinder (21); The fourth control valve (20) is used to control the action of the oil cylinder (21); The oil cylinder (21) is used to adjust the inclination angle of the drilling rig feeding body and the stability of the drilling rig.

7. A directional drilling hydraulic system for a kilometer-long directional drilling rig according to claim 6, characterized in that: The liquid outlet end of the main pump assembly (7) is connected to the liquid inlet end of the first control valve (9) and the second control valve (13) respectively.

8. The directional drilling hydraulic system of a kilometer-long directional drilling rig according to claim 7, characterized in that: The liquid outlet end of the auxiliary pump assembly (8) is respectively connected to the liquid inlet ends of the third control valve (16) and the fourth control valve (20).

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