A construction auxiliary device for horizontal directional drilling rig in coal mining

Abstract

The invention relates to the technical field of horizontal directional drilling rig construction, and discloses a coal mining horizontal directional drilling rig construction auxiliary device, comprising a drilling rig body, two angle adjustment cylinders fixedly installed on the drilling rig body, a slide rail arranged between the two angle adjustment cylinders, a power head slidably installed on the slide rail, a power device arranged on the power head, an outer chuck fixedly installed on the output end of the power device, a limit strip fixedly installed on the inner wall of the outer chuck, a threaded groove for limiting the limit strip arranged on the sleeve, the horizontal directional drilling rig construction auxiliary device uses the power device to drive the outer chuck to rotate, so that a first wedge block in the inner chuck cooperates with a second wedge block at the end of the sleeve, drives a telescopic column and a clamping strip to clamp a pipeline, when the drill bit encounters hard rock, the inner chuck is subjected to increased resistance, which will compress a first spring, drive a speed regulating knob to move, so that the speed of the power head can be slowed down in time, and the wear of the drill bit is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of horizontal directional drilling rig construction, in particular to a horizontal directional drilling rig construction auxiliary device for coal mining. Background Art

[0002] Horizontal directional drilling rig is a kind of construction machinery that lays various underground public facilities (pipelines, cables, etc.) without excavating the ground surface. It is widely used in the laying of flexible pipelines for water supply, electricity, telecommunications, natural gas, coal gas, oil, coal mines, etc. Horizontal directional drilling technology and related equipment also play an important role in coal mining and gas prevention. It uses key components such as high-strength center cable drill rod and bottom hole screw motor, combined with drilling measurement technology and orifice monitor to achieve precise control and monitoring of drilling trajectory. It has high accuracy and directionality, can accurately control the drilling trajectory, ensure that the drilling accurately reaches the predetermined target, and can change the drilling inclination angle by adjusting the screw motor tool face angle, so as to achieve effective control of the drilling trajectory. Using drilling measurement technology and orifice monitor, the drilling trajectory can be monitored in real time to avoid drilling accidents and reduce the work risks of workers.

[0003] During coal mining, due to the complex geological environment in the mine, there may be some hard rock formations or large stones that are difficult to detect by instruments. The existing horizontal directional drilling rigs usually maintain a uniform drilling speed. When encountering hard rock during the drilling process, the resistance to the drill bit will increase, and because the rock is relatively hard, the drill bit requires greater force during the drilling process. If the drilling speed in the soil is maintained during drilling, it is easy to cause the drill head to generate high heat, increase the degree of wear of the probe, and even cause drill burning. When drilling rocks at a higher drilling speed, the drill rod may also be subjected to greater torque and stress during rotation or advancement, and cause slippage between the drill rod and the chuck, which will not only affect the drilling efficiency and accuracy, but may also increase equipment damage and accident risks. For this reason, we propose a construction auxiliary device for coal mining horizontal directional drilling rigs. Summary of the invention

[0004] The purpose of the present invention is to provide a construction auxiliary device for a horizontal directional drilling rig for coal mining, so as to solve the problem of flexibly adjusting the drilling speed when facing geology with different hardnesses proposed in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a construction auxiliary device for a horizontal directional drilling rig for coal mining, comprising a drilling rig body, on which two angle-adjusting cylinders are fixedly installed, a slide rail is arranged between the two angle-adjusting cylinders, and both ends of the slide rail are rotatably connected with the output ends of the two angle-adjusting cylinders, a power head is slidably installed on the slide rail, and a clamp for clamping a pipe is fixedly installed at the end thereof, a power device is arranged on the power head, and a sleeve is fixedly installed, an external chuck is fixedly installed at the output end of the power device, a limit strip is fixedly installed on the inner wall of the external chuck, a threaded groove for limiting the limit strip is arranged on the sleeve, and a slide groove is connected with the head end and the tail end of the threaded groove;

[0006] An inner chuck is slidably installed in the outer chuck, an annular plate is fixedly installed in the outer chuck, a first spring is fixedly connected between the annular plate and the inner chuck, a plurality of guide blocks for limiting the inner chuck are fixedly installed on the annular plate, a speed regulating button for adjusting the speed of the power head is slidably installed on one of the guide blocks, a limit card for limiting the speed regulating button is fixedly installed on the inner chuck, a plurality of clamping strips for clamping the pipeline are slidably installed on the inner chuck, each of the clamping strips is fixedly installed with a telescopic column, and one end of each telescopic column is fixedly installed A second device block is installed, and a second spring is fixedly connected between each of the second device blocks and the inner wall of the inner chuck, and a second wedge block and a third wedge block are fixedly installed at both ends of each of the second device blocks, and a plurality of first device blocks are slidably installed on the inner wall of the sleeve end, and the first device blocks correspond to the second device blocks one by one, and a first wedge block matching with the second wedge block is fixedly installed at one end of each of the first device blocks, and a plurality of fourth wedge blocks for matching with the third wedge block are fixedly installed on the annular plate, and the fourth wedge blocks correspond to the third wedge blocks one by one.

[0007] Preferably, the power head is provided with a cleaning chamber, in which a plurality of sponge rollers for wiping water stains and cleaning rollers for cleaning impurities on the surface of the pipeline are rotatably installed, and the sponge rollers and cleaning rollers are arranged in a circle.

[0008] Preferably, several transmission shafts are rotatably installed in the cleaning chamber, a first pulley is fixedly installed on each of the sponge rollers, a second pulley is fixedly installed on one end of each of the transmission shafts, each of the first pulleys is connected to the corresponding second pulley via a belt drive, a second gear is fixedly installed on each of the cleaning rollers, and a first gear meshing with the second gear is fixedly installed on each of the transmission shafts.

[0009] Preferably, the diameter of the first pulley is larger than the diameter of the second pulley, and the diameter of the first gear is larger than the diameter of the second gear.

[0010] Preferably, a plurality of scrapers for scraping off impurities adhering to the cleaning roller are fixedly installed at the entrance of the cleaning chamber, the scrapers correspond to the cleaning rollers one by one, and the ends thereof are arranged in an arc shape that fits the surface of the cleaning roller.

[0011] Preferably, each of the second device blocks and each of the second wedge-shaped blocks are provided with a plurality of balls, and each of the first device blocks and each of the first wedge-shaped blocks are provided with a plurality of limiting grooves for limiting the balls.

[0012] Preferably, a first guide bar is rotatably mounted on the end of each of the third wedge blocks, a first torsion spring is fixedly connected between the two ends of each of the first guide bars and the corresponding third wedge blocks, and a second guide bar is rotatably mounted on the end of each of the fourth wedge blocks, a second torsion spring is fixedly connected between the two ends of each of the second guide bars and the corresponding fourth wedge blocks.

[0013] Preferably, each of the first guide strip inclined surfaces is located on the same straight line as the corresponding third wedge block inclined surface, and each of the second guide strip inclined surfaces is located on the same straight line as the corresponding fourth wedge block inclined surface.

[0014] Preferably, a plurality of annular strips for limiting the position of the first device block are fixedly mounted on the inner wall of the sleeve.

[0015] Preferably, each of the clamping strips is provided with a plurality of anti-skid grooves for increasing the friction between the clamping strip and the pipeline.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention utilizes a power device to drive the outer chuck to rotate, so that the first wedge block in the inner chuck cooperates with the second wedge block at the end of the sleeve, drives the telescopic column and the clamping strip to clamp the pipeline, and makes the two pipelines threadedly connected. When the drill bit encounters hard rock, the inner chuck is subjected to increased resistance, which will compress the first spring and drive the speed regulating knob to move, so that the speed of the power head can be slowed down in time, reducing the wear of the drill bit, and makes the third wedge block cooperate with the fourth wedge block to perform secondary compression on the telescopic column and the clamping strip, thereby increasing the clamping force on the pipeline and preventing slippage between the pipeline and the clamping strip.

[0018] The present invention utilizes a sponge roller to wipe off water stains on the pipeline, and at the same time, a series of transmission mechanisms in the cleaning chamber are used to drive the cleaning roller to rotate at a differential speed, and the rotation direction of the cleaning roller is in the opposite direction to the movement direction of the pipeline, and a scraper is provided to scrape off impurities attached to the cleaning roller, which can effectively clean the surface of the pipeline, increase the friction between the pipeline and the card strip, and enable the drill bit to have sufficient power for drilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the slide rail structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the thread groove and the limiting strip structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the internal structure of the outer chuck of the present invention;

[0023] Figure 5 is a schematic diagram of the structure of the second device block of the present invention;

[0024] Figure 6 This is a schematic diagram of the ring strip structure of the present invention;

[0025] Figure 7 This is a schematic diagram of the card strip structure of the present invention;

[0026] Figure 8 It is a schematic diagram of the structure of the first guide bar and the second guide bar of the present invention;

[0027] Fig. 9 This is a schematic diagram of the cleaning chamber structure of the present invention;

[0028] Fig.10 It is a schematic diagram of the structure of the first pulley and the second pulley of the present invention;

[0029] Fig.11 It is a schematic diagram of the structure of the first gear and the second gear of the present invention.

[0030] In the figure: 1-drilling machine body; 2-angle adjustment cylinder; 3-slide rail; 4-power head; 5-clamp; 6-power device; 7-external chuck; 8-sleeve; 9-thread groove; 10-slide groove; 11-limiting bar; 12-annular plate; 13-guide block; 14-speed knob; 15-inner chuck; 16-first spring; 17-limiting card; 18-first wedge block; 19-first device block; 20-annular bar; 21-second wedge block; 22-second device block; 23-telescopic Column; 24-second spring; 25-card strip; 26-anti-slip groove; 27-ball; 28-limiting groove; 29-third wedge block; 30-first guide strip; 31-first torsion spring; 32-fourth wedge block; 33-second guide strip; 34-second torsion spring; 35-cleaning chamber; 36-cleaning roller; 37-scraper; 38-sponge roller; 39-first pulley; 40-second pulley; 41-belt; 42-drive shaft; 43-first gear; 44-second gear. DETAILED DESCRIPTION

[0031] 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.

[0032] See also Figure 1-Figure 11 The present invention provides a technical solution: a construction auxiliary device for a coal mining horizontal directional drilling rig, comprising a drilling rig body 1, two angle-adjusting cylinders 2 are fixedly installed on the drilling rig body 1, a slide rail 3 is arranged between the two angle-adjusting cylinders 2, and both ends of the slide rail 3 are rotatably connected to the output ends of the two angle-adjusting cylinders 2 respectively. By lifting and lowering the two angle-adjusting cylinders 2, the height and angle of the slide rail 3 can be adjusted, so that the pipeline can be drilled at different angles. A power head 4 is slidably installed on the slide rail 3 (the power head 4 is an existing known structure, so the present invention will not be described in detail), and a clamp 5 for clamping the pipeline is fixedly installed at its end, so that when the pipeline is butted, the front section of the pipeline can be fixed, so that the two sections of the pipeline can be threadedly butted, and the power head 4 is provided with a power device 6 (the power device 6 is an existing known structure, so the present invention will not be described in detail), and a sleeve 8 is fixedly installed, an outer chuck 7 is fixedly installed at the output end of the power device 6, the power device 6 can drive the outer chuck 7 to rotate or to extend horizontally, a limit strip 11 is fixedly installed on the inner wall of the outer chuck 7, a thread groove 9 for limiting the limit strip 11 is provided on the sleeve 8, the head end and the end of the thread groove 9 are connected with a slide groove 10, when the power device 6 drives the outer chuck 7 to rotate, the thread groove 9 limits the limit strip 11, so that the outer chuck 7 rotates while moving horizontally, and when the power device 6 drives the outer chuck 7 to move horizontally, the limit strip 11 slides along the slide groove 10.

[0033] An inner chuck 15 is slidably mounted in the outer chuck 7, an annular plate 12 is fixedly mounted in the outer chuck 7, a first spring 16 is fixedly connected between the annular plate 12 and the inner chuck 15, a plurality of guide blocks 13 for limiting the inner chuck 15 are fixedly mounted on the annular plate 12, and the inner chuck 15 is limited by the guide blocks 13 so that the inner chuck 15 always rotates synchronously with the outer chuck 7, a speed regulating button 14 for adjusting the speed of the power head 4 is slidably mounted on one of the guide blocks 13, a limiting card 17 for limiting the speed regulating button 14 is fixedly mounted on the inner chuck 15, a plurality of clamping strips 25 for clamping the pipeline are slidably mounted on the inner chuck 15, and each clamping strip 25 is provided with a plurality of anti-skid grooves 26 for increasing the friction between the pipeline and the inner chuck. A telescopic column 23 is fixedly installed on each clamping strip 25, a second device block 22 is fixedly installed on one end of each telescopic column 23, a second spring 24 is fixedly connected between each second device block 22 and the inner wall of the inner chuck 15, a second wedge block 21 and a third wedge block 29 are fixedly installed on both ends of each second device block 22, a plurality of first device blocks 19 are slidably installed on the inner wall of the end of the sleeve 8, the first device blocks 19 correspond to the second device blocks 22 one by one, a plurality of annular strips 20 for limiting the first device blocks 19 are fixedly installed on the inner wall of the sleeve 8, a first wedge block 18 matching the second wedge block 21 is fixedly installed on one end of each first device block 19, and each second device block 22 and each second wedge block 21 are provided with A plurality of balls 27 are provided on each first device block 19 and each first wedge block 18, and a plurality of limiting grooves 28 for limiting the balls 27 are provided. The limiting grooves 28 on the first device block 19 and the first wedge block 18 limit the balls 27 on the second wedge block 21 and the second device block 22. The first device block 19 and the first wedge block 18 will rotate synchronously with the second wedge block 21 and the second device block 22. Through the cooperation of the inclined surface of the first wedge block 18 and the inclined surface of the second wedge block 21, when the outer chuck 7 drives the inner chuck 15 to move horizontally, the second wedge block 21 will drive the second device block 22 to move downward, and push the telescopic column 23 and the clamping strip 25 toward the pipeline, and the second spring 24 is compressed, so that the first device block 1 9 is in direct contact with the second device block 22, and the movement distance of the telescopic column 23 and the clamping strip 25 remains stable at this time. The pipeline is clamped in the inner chuck 15 with appropriate force. Since the two pipelines need to be connected by threaded connection, the power device 6 needs to drive the outer chuck 7 to rotate when the pipelines are connected. When a section of the pipeline is drilled and the power head 4 is reset, the power device 6 only needs to drive the outer chuck 7 to shrink horizontally. At the same time, the power head 4 and the outer chuck 7 move forward at the same speed, so that the outer chuck 7 does not move on the pipeline. After the first device block 19 and the first wedge block 18 release the limit of the second wedge block 21 and the second device block 22, the second wedge block 21 and the second device block 22 can be reset under the elastic force of the second spring 24.The telescopic column 23 and the clamping bar 25 are driven to reset and release the clamping of the pipe. At this time, the limit bar 11 moves along the slide groove 10 to the head end of the thread groove 9 again, and the power head 4 can reset along the slide rail 3 and add the pipe again. If the pipe needs to be unloaded in the reverse direction, after the pipe is pulled back, the power device 6 drives the outer chuck 7 to rotate in the reverse direction. The outer chuck 7 will rotate in the reverse direction and retract horizontally, so that the pipe can be unloaded smoothly.

[0034] A plurality of fourth wedge blocks 32 for cooperating with the third wedge blocks 29 are fixedly installed on the annular plate 12. The fourth wedge blocks 32 correspond to the third wedge blocks 29 one by one. A first guide bar 30 is rotatably installed on the end of each third wedge block 29. A first torsion spring 31 is fixedly connected between the two ends of each first guide bar 30 and the corresponding third wedge block 29. A second guide bar 33 is rotatably installed on the end of each fourth wedge block 32. A second torsion spring 34 is fixedly connected between the two ends of each second guide bar 33 and the corresponding fourth wedge block 32. The inclined surface of each first guide bar 30 is located on the same straight line as the inclined surface of the corresponding third wedge block 29. The inclined surface of each second guide bar 33 is located on the same straight line as the inclined surface of the corresponding fourth wedge block 32. On the same straight line, when the second device block 22 is compressed downward, the third wedge block 29 will be driven to move synchronously. During the movement of the third wedge block 29, the lower end surface of the first guide bar 30 thereon will contact the upper end surface of the second guide bar 33, the first guide bar 30 will rotate, and the first torsion spring 31 will rotate and store force. After the first guide bar 30 passes the second guide bar 33, the first guide bar 30 is reset by the elastic force of the first torsion spring 31, and its inclined surface will contact the inclined surface of the second guide bar 33. When the drill bit encounters hard rock, the resistance increases. Since the pipeline is clamped by the clamping bar 25, the inner chuck 15 will slide relative to the outer chuck 7, and the first spring 16 will be compressed, and the upper limit card 17 of the inner chuck 15 will timely adjust the speed knob 14 The inner chuck 15 and the outer chuck 7 are relatively displaced, and the inner chuck 15 drives the clamping strip 25 and the second device block 22 and the third wedge block 29 thereon to move toward the fourth wedge block 32 in the outer chuck 7. At the same time, the inclined surface of the first guide strip 30 cooperates with the inclined surface of the second guide strip 33, so that the inclined surface of the third wedge block 29 cooperates with the inclined surface of the fourth wedge block 32. Since the fourth wedge block 32 is fixed to the inner annular plate 12 of the outer chuck 7, the third wedge block 29 drives the second device block 22 to move downward again, thereby increasing the compression of the telescopic column 23 and improving the clamping force of the clamping strip 25 on the pipeline to prevent the pipeline and the clamping strip 25 from slipping. When the drill bit passes through hard rock, the block The force decreases, and the elastic force of the first spring 16 resets the inner chuck 15 on the outer chuck 7 and resets the speed knob 14, so that the power head 4 resumes normal speed. The third wedge block 29 and the second device block 22 are reset to a normal clamping state by the elastic force of the second spring 24. The first device block 19 directly contacts the second device block 22 directly again. When it returns to the initial state, the second device block 22 drives the third wedge block 29 to rise again, and the inclined surface of the first guide bar 30 contacts the inclined surface of the second guide bar 33, so that the second guide bar 33 flips upward, and the second torsion spring 34 rotates to store force. After the third wedge block 29 drives the first guide bar 30 to pass through the second guide bar 33 and resume the initial state, the second guide bar 33 is reset by the elastic force of the second torsion spring 34.

[0035] A cleaning chamber 35 is provided on the power head 4. A plurality of sponge rollers 38 for wiping water stains and a cleaning roller 36 for cleaning impurities on the surface of the pipeline are rotatably installed in the cleaning chamber 35. The sponge rollers 38 and the cleaning rollers 36 are arranged in a circle. A plurality of transmission shafts 42 are rotatably installed in the cleaning chamber 35. A first pulley 39 is fixedly installed on each sponge roller 38. A second pulley 40 is fixedly installed on one end of each transmission shaft 42. Each first pulley 39 is connected to the corresponding second pulley 40 through a belt 41. A second gear 44 is fixedly installed on each cleaning roller 36. A first gear 43 meshing with the second gear 44 is fixedly installed on each transmission shaft 42. The diameter of the first pulley 39 is larger than that of the second pulley 40, and the diameter of the first gear 43 is larger than that of the second gear 44, so that the cleaning roller 36 can perform differential rotation with the sponge roller 38 and rotate in the opposite direction of the pipeline movement to improve its cleaning effect. A plurality of sponge rollers 38 are fixedly installed at the entrance of the cleaning chamber 35. The scraper 37 is used to scrape off the impurities adhering to the cleaning roller 36. The scraper 37 corresponds to the cleaning roller 36 one by one, and its end is set to an arc shape that fits the surface of the cleaning roller 36. After the pipeline enters the cleaning chamber 35, the sponge roller 38 wipes off the water stains on it, increases the friction between the pipeline and the card strip 25 to prevent slipping, and at the same time, the sponge roller 38 rotates with the movement of the pipeline, driving the first pulley 39 thereon to rotate, and through the transmission of the belt 41, the second pulley 40 and the transmission shaft 42 are driven to rotate, and the first gear 43 on the transmission shaft 42 also rotates synchronously, and the cleaning roller 36 is driven to rotate through the meshing of the first gear 43 and the second gear 44. Since the diameter of the first pulley 39 is larger than the diameter of the second pulley 40, and the diameter of the first gear 43 is larger than the diameter of the second gear 44, the cleaning roller 36 can be differentially rotated with the sponge roller 38, and in the opposite direction of the pipeline movement. At the same time, the scraper 37 scrapes off the impurities adhering to the cleaning roller 36, thereby improving the cleaning effect of the cleaning roller 36.

[0036] Specifically, the pipe is first passed through the cleaning chamber 35. After the pipe enters the cleaning chamber 35, the sponge roller 38 wipes off the water stains on it, thereby increasing the friction between the pipe and the card strip 25 to prevent slipping. At the same time, the sponge roller 38 rotates with the movement of the pipe, driving the first pulley 39 thereon to rotate, and through the transmission of the belt 41, the second pulley 40 and the transmission shaft 42 are driven to rotate, and the first gear 43 on the transmission shaft 42 also rotates synchronously, and the first gear 43 is meshed with the second gear 44, which drives the cleaning roller 36 to rotate. Since the diameter of the first pulley 39 is larger than the diameter of the second pulley 40, and the diameter of the first gear 43 is larger than the diameter of the second gear 44, the cleaning roller 36 can rotate differentially with the sponge roller 38 and rotate in the opposite direction to the movement of the pipe. In the opposite direction, the scraper 37 scrapes off the impurities adhering to the cleaning roller 36, thereby improving the cleaning effect of the cleaning roller 36, and then the power device 6 is started. When the power device 6 drives the outer chuck 7 to rotate, the threaded groove 9 limits the limit bar 11, so that the outer chuck 7 rotates and moves horizontally at the same time. When the power device 6 drives the outer chuck 7 to move horizontally, the limit bar 11 slides along the slide groove 10, and the upper limit groove 28 of the first device block 19 and the first wedge block 18 limits the ball 27 on the second wedge block 21 and the second device block 22. The first device block 19 and the first wedge block 18 will rotate synchronously with the second wedge block 21 and the second device block 22, and the inclined surface of the first wedge block 18 cooperates with the inclined surface of the second wedge block 21 , when the outer chuck 7 drives the inner chuck 15 to move horizontally, the second wedge block 21 will drive the second device block 22 to move downward, and push the telescopic column 23 and the clamping strip 25 toward the pipeline, and the second spring 24 is compressed, and finally the first device block 19 is directly in contact with the second device block 22. The movement distance of the telescopic column 23 and the clamping strip 25 remains stable at this time, and the pipeline is clamped in the inner chuck 15 with appropriate force. Since the two pipelines need to be connected by threads, the power device 6 needs to drive the outer chuck 7 to rotate when the pipeline is connected. When a section of the pipeline is drilled, the power head 4 is reset, and the power device 6 only needs to drive the outer chuck 7 to shrink horizontally. At the same time, the power head 4 and the outer chuck 7 move forward at the same speed, so that the outer chuck The disk 7 does not move on the pipeline. After the first device block 19 and the first wedge block 18 release the limit of the second wedge block 21 and the second device block 22, the second wedge block 21 and the second device block 22 can be reset under the elastic force of the second spring 24, and drive the telescopic column 23 and the clamping strip 25 to reset and release the clamping of the pipeline. At this time, the limit strip 11 moves along the slide groove 10 to the head end of the thread groove 9 again, and the power head 4 can be reset along the slide rail 3 and add the pipeline again. If it is necessary to unload the pipe in the reverse direction, after pulling the pipe back, the power device 6 drives the outer chuck 7 to rotate in the opposite direction. The outer chuck 7 will rotate in the reverse direction and retract horizontally, so that the pipeline can be unloaded smoothly. When the second device block 22 is compressed downward, it will drive the third wedge block 29 to move synchronously.During the movement of the third wedge block 29, the lower end straight surface of the first guide bar 30 thereon contacts the upper end straight surface of the second guide bar 33, the first guide bar 30 will rotate, and the first torsion spring 31 will rotate and store force. After the first guide bar 30 passes the second guide bar 33, the first guide bar 30 is reset by the elastic force of the first torsion spring 31, and its inclined surface will contact the inclined surface of the second guide bar 33. When the drill bit encounters hard rock, the resistance increases. Since the pipeline is clamped by the clamping bar 25, the inner chuck 15 will slide relative to the outer chuck 7, and the first spring 16 will be compressed. The upper limit card 17 of the inner chuck 15 adjusts the speed knob 14 in time to slow down the movement speed of the power head 4. At the same time, through the cooperation of the inclined surface of the first guide bar 30 and the inclined surface of the second guide bar 33, the inclined surface of the third wedge block 29 cooperates with the inclined surface of the fourth wedge block 32, so that the third wedge block 29 drives the second device block 22 to move downward again. The compression of the telescopic column 23 is increased, and the clamping force of the clamping bar 25 on the pipeline is improved to prevent the pipeline and the clamping bar 25 from slipping. When the drill bit passes through hard rock, the resistance is reduced, and the elastic force of the first spring 16 resets the inner chuck 15 on the outer chuck 7, and resets the speed knob 14, and the power head 4 returns to normal speed. The third wedge block 29 and the second device block 22 are reset to the normal clamping state by the elastic force of the second spring 24. The first device block 19 directly contacts the second device block 22 again. When it returns to the initial state, the second device block 22 drives the third wedge block 29 to rise again, and the inclined surface of the first guide bar 30 contacts the inclined surface of the second guide bar 33, so that the second guide bar 33 flips upward, and the second torsion spring 34 rotates to store force. After the third wedge block 29 drives the first guide bar 30 to pass through the second guide bar 33 and return to the initial state, the second guide bar 33 is reset by the elastic force of the second torsion spring 34.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal mining horizontal directional drilling rig construction auxiliary device, comprising a drilling rig body (1), characterized in that: Two angle adjustment cylinders (2) are fixedly mounted on the drilling machine body (1), a slide rail (3) is arranged between the two angle adjustment cylinders (2), the two ends of the slide rail (3) are respectively rotatably connected to the output ends of the two angle adjustment cylinders (2), a power head (4) is slidably mounted on the slide rail (3), and a clamp (5) is fixedly mounted on the end of the slide rail (3), a power device (6) is arranged on the power head (4), and a sleeve (8) is fixedly mounted thereon, an external chuck (7) is fixedly mounted on the output end of the power device (6), the sleeve (8) is sleeved inside the external chuck (7), a limit strip (11) is fixedly mounted on the inner wall of the external chuck (7), a thread groove (9) matching the limit strip (11) is arranged on the sleeve (8), and a slide groove (10) is connected between the head end and the tail end of the thread groove (9); An inner chuck (15) is slidably mounted in the outer chuck (7), an annular plate (12) is fixedly mounted in the outer chuck (7), a first spring (16) is fixedly connected between the annular plate (12) and the inner chuck (15), a plurality of guide blocks (13) are fixedly mounted on the annular plate (12), a speed regulating button (14) is slidably mounted on one of the guide blocks (13), a limit card (17) is fixedly mounted on the inner chuck (15), a plurality of clips (25) for limiting the position of the drill rod are slidably mounted on the inner chuck (15), a telescopic column (23) is fixedly mounted on each of the clips (25), and a second device block (25) is fixedly mounted on one end of each of the telescopic columns (23). 2), a second spring (24) is fixedly connected between each of the second device blocks (22) and the inner wall of the inner chuck (15), a second wedge block (21) and a third wedge block (29) are fixedly installed at both ends of each of the second device blocks (22), a plurality of first device blocks (19) are slidably installed on the inner wall of the end of the sleeve (8), the first device blocks (19) correspond one-to-one with the second device blocks (22), and a first wedge block (18) matching the second wedge block (21) is fixedly installed at one end of each of the first device blocks (19), and a plurality of fourth wedge blocks (32) are fixedly installed on the annular plate (12), and the fourth wedge blocks (32) correspond one-to-one with the third wedge blocks (29).

2. A coal mining horizontal directional drilling rig construction auxiliary device according to claim 1, characterized in that: The power head (4) is provided with a cleaning chamber (35), and a plurality of sponge rollers (38) and cleaning rollers (36) are rotatably mounted in the cleaning chamber (35), and the sponge rollers (38) and cleaning rollers (36) are respectively arranged in a circle.

3. A coal mining horizontal directional drilling rig construction auxiliary device according to claim 2, characterized in that: A plurality of transmission shafts (42) are rotatably mounted in the cleaning chamber (35); a first pulley (39) is fixedly mounted on each of the sponge rollers (38); a second pulley (40) is fixedly mounted on one end of each of the transmission shafts (42); each of the first pulleys (39) is connected to the corresponding second pulley (40) via a belt (41); a second gear (44) is fixedly mounted on each of the cleaning rollers (36); and a first gear (43) meshing with the second gear (44) is fixedly mounted on the other end of each of the transmission shafts (42).

4. A coal mining horizontal directional drilling rig construction auxiliary device according to claim 3, characterized in that: The diameter of the first pulley (39) is greater than the diameter of the second pulley (40), and the diameter of the first gear (43) is greater than the diameter of the second gear (44).

5. The coal mining horizontal directional drilling rig construction auxiliary device according to claim 3 is characterized by: A plurality of scrapers (37) are fixedly mounted at the entrance of the cleaning chamber (35); the scrapers (37) correspond one to one with the cleaning rollers (36), and their ends are arranged in an arc shape that fits the surface of the cleaning roller (36).

6. The coal mining horizontal directional drilling rig construction auxiliary device according to claim 1, characterized in that: Each of the second device blocks (22) and each of the second wedge blocks (21) is provided with a plurality of rolling balls (27), and each of the first device blocks (19) and each of the first wedge blocks (18) is provided with a plurality of limiting grooves (28).

7. The construction auxiliary device for horizontal directional drilling rig for coal mining according to claim 1 is characterized by: A first guide bar (30) is rotatably mounted on the end of each third wedge block (29), and a first torsion spring (31) is fixedly connected between the two ends of each first guide bar (30) and the corresponding third wedge block (29). A second guide bar (33) is rotatably mounted on the end of each fourth wedge block (32), and a second torsion spring (34) is fixedly connected between the two ends of each second guide bar (33) and the corresponding fourth wedge block (32).

8. A coal mining horizontal directional drilling rig construction auxiliary device according to claim 7, characterized in that: The inclined surface of each first guide strip (30) is located on the same straight line as the inclined surface of the corresponding third wedge block (29), and the inclined surface of each second guide strip (33) is located on the same straight line as the inclined surface of the corresponding fourth wedge block (32).

9. The coal mining horizontal directional drilling rig construction auxiliary device according to claim 6, characterized in that: A plurality of annular strips (20) are fixedly mounted on the inner wall of the sleeve (8).

10. The construction auxiliary device for horizontal directional drilling rig for coal mining according to claim 1, characterized in that: Each of the clamping strips (25) is provided with a plurality of anti-slip grooves (26).

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