Guide drill rod of horizontal directional drilling machine

Abstract

The invention discloses a guide drill rod of a horizontal directional drilling machine, and relates to the field of guide drill rods of drilling machines. A motor is fixedly connected to the interior of the positive end of the concave frame, and an output shaft of the motor penetrates through the front end of the concave frame and is fixedly connected with an adjusting support. The rotating force of the drill rod is given by the driving motor, so that the original situation that the drilling gear drives the mandrel to rotate and the mandrel transmits the rotating power to the mandrel and the coupler in the steel pipe is changed, the whole drill rod rotates, the rotating force transmission is more direct, the situation of force release in the middle is avoided, and the stable and continuous operation of the drill rod is guaranteed; and in addition, the drill rod is connected with the driving motor through the intervention of the sleeve, the drill rod and the sleeve generate magnetic attraction, the connection firmness and the operation stability are guaranteed, the worn drill rod can be replaced conveniently, the drilling rig is smoother and more convenient to use, and the utilization rate of the drilling rig is further improved.

Description

Technical Field

[0001] The invention relates to the field of drilling rig guide drill rods, in particular to a horizontal directional drilling rig guide drill rod. Background Art

[0002] Drilling is a systematic project. It is a joint operation involving multiple professions and trades using a variety of equipment, tools and materials. At the same time, it is a continuous operation with multiple procedures closely linked and multiple links closely linked together. The entire construction process is quite complex.

[0003] The drilling rig uses the drill bit on the drill pipe to cut the soil layer, and at the same time, the drill bit is pushed forward by the rotation and advancement of the drill pipe to carry out construction. The drill pipe must first be lowered to the wellhead, and the drill bit is driven to cut by rotating the drill pipe. The drilling gear drives the mandrel to rotate, and the mandrel transmits the rotational power to the mandrel and coupling inside the steel pipe, so that the entire drill pipe rotates. When the drill bit is cutting the soil, due to the propulsion force of the drill pipe and the energy of the drill bit, the drill bit will continue to move forward, and the drilling depth will gradually increase. The advancement of the drill pipe is usually completed by a combination of rotation and advancement. While the drill pipe rotates, it also pushes the drill bit forward.

[0004] The drill pipe transmission system is too complicated and inconvenient to disassemble and replace. The drill pipe body is easily damaged during use, which leads to the paralysis of the horizontal directional drilling rig guide drill pipe drilling, thereby reducing the operating efficiency of the horizontal directional drilling rig guide drill pipe. Summary of the invention

[0005] The object of the present invention is to provide a guide drill rod for a horizontal 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 guide drill rod of a horizontal directional drilling rig, comprising: a concave frame; a motor is fixedly connected to the inside of the positive end of the concave frame, the output shaft of the motor passes through the front end of the concave frame and is fixedly connected to the adjusting bracket, the motor can adjust the connection angle between the concave frame and the adjusting bracket, thereby achieving the effect of changing the drilling angle, so that it can drill more smoothly during operation, thereby improving the use effect of the drilling rig, the top of the adjusting bracket is movably connected to the positioning bracket, the upper left part of the positioning bracket is fixedly connected to the mounting bracket, the center of the mounting bracket is fixedly connected to the driving motor, the output shaft of the driving motor is fixedly connected to the sleeve, and the inner cavity of the sleeve is magnetically connected There is a drill rod, and a movable groove is opened on the upper right side of the positioning frame. The movable frame is slidably connected inside the movable groove. The rotational force of the drill rod is given by the driving motor, thereby changing the original drilling gear to drive the core shaft to rotate, and the core shaft transmits the rotational power to the core shaft and the coupling inside the steel pipe, so that the drill rod is rotated as a whole, and the rotational force transmission is more direct, and there is no force loss in the middle, which ensures the stable and continuous operation of the drill rod and improves the drilling efficiency. In addition, the drill rod is connected to the driving motor through the intervention of the sleeve, and the drill rod and the sleeve generate magnetic attraction, which not only ensures the connection firmness and operation stability, but also facilitates the replacement of the worn drill rod, making the drilling rig smoother and more convenient when in use, further improving the utilization rate of the drilling rig.

[0007] As a further solution of the present invention: a sealing ring is fixedly connected to the center of the movable frame, and the inner wall of the sealing ring is movably connected to the outer wall of the drill rod. By setting the sealing ring at the center of the movable frame, the drill rod is introduced into the sealing ring, and the movable frame slides left along the movable groove set by the positioning frame, and the drill rod is accurately introduced into the sleeve, so that the drill rod rotates synchronously with the driving shaft of the driving motor. In addition, the movable frame slides right along the movable groove set by the positioning frame, and the drill rod is out of the magnetic range of the sleeve, so that the worn drill rod can be taken out of the sealing ring and replaced, which makes the drilling rig smoother and more convenient to use, and further improves the utilization rate of the drilling rig.

[0008] As a further solution of the present invention: the back side of the adjusting bracket is respectively fixedly connected with a reduction motor and a connecting block, the center of the connecting block is rotatably connected with a driving bolt, the left side of the driving bolt is fixedly connected to the output shaft of the reduction motor, the connecting block is arranged on the right side of the rear end of the adjusting bracket, and the reduction motor is arranged on the left side of the rear end of the adjusting bracket. In addition, the center of the reduction motor and the center of the connecting block are symmetrically arranged left and right, so the intervening driving bolt runs horizontally, which plays a vital role in the subsequent regulation and control of the movement stability of the positioning frame.

[0009] As a further solution of the present invention: the outer wall of the driving bolt is threadedly connected to a sliding frame, and a sliding groove is provided on the back side of the adjusting bracket from the outside to the inside. The sliding frame is movably connected to the groove of the sliding groove at one end of the driving bolt, the sliding frame is arranged in the sliding groove, and a small part of the rear end of the sliding frame is exposed to the outside of the adjusting bracket, and the horizontal movement direction of the sliding frame in the sliding groove is controlled by the driving bolt, and the steering direction of the driving bolt is controlled by the reduction motor.

[0010] As a further solution of the present invention: the sliding frame is fixedly connected with a connecting frame at one end of the slide groove, the top of the connecting frame is fixedly connected to the bottom of the positioning frame, the connecting frame moves around the upper groove of the adjusting frame, and the connecting frame plays a series role therein, prompting the sliding frame and the positioning frame to be connected, so the moving direction of the sliding frame directly controls the moving direction of the positioning frame, so that the position of the positioning frame on the adjusting frame can be adjusted, and the drill rod moves smoothly with the adjustment of the positioning frame, achieving the effect of changing position, so that it can drill more smoothly during operation, thereby improving the use effect of the drilling rig.

[0011] As a further solution of the present invention: the upper and lower ends of the concave frame are respectively fixedly connected with a fixing frame and a supporting frame, the left sides of the fixing frame and the supporting frame are fixedly connected with a driving frame, the front of the driving frame is fixedly connected with a traction frame, and the fixing frame and the supporting frame are respectively arranged at the upper and lower ends of the left side of the concave frame, which can not only support the concave frame, but also ensure the stability of the concave frame during subsequent lifting, thereby improving the drilling stability of the drilling rig and the drilling guidance level.

[0012] As a further solution of the present invention: the central thread of the driving frame is connected with an adjusting bolt, the top of the adjusting bolt is fixedly connected with a servo motor, the outer wall of the servo motor is fixedly connected with a vertical bracket, the driving frame is respectively arranged on the left side of the fixed frame and the supporting frame, and the adjusting bolt can play a role in adjusting the lifting and lowering of the driving frame on the vertical bracket. In addition, the steering direction of the adjusting bolt is controlled by the servo motor, so the user can control the moving direction of the driving frame and control the lifting and lowering of the drill rod, thereby achieving the effect of changing the angle, so that it can drill more smoothly during operation, thereby improving the use effect of the drilling rig.

[0013] As a further solution of the present invention: a driving groove and a traction groove are provided at the upper and lower ends of the vertical bracket, the outer wall of the driving frame is movably connected to the groove of the driving groove, and the traction frame is movably connected to the groove of the traction groove at one end of the driving frame. The traction frame is arranged on the front side of the driving frame, and the traction frame moves stably around the traction groove. Therefore, the driving frame moves synchronously and stably in the driving groove, and the adjusting bolt can stably control the lifting and lowering of the driving frame.

[0014] As a further solution of the present invention: the bottom of the vertical bracket is fixedly connected to a supporting base, and both ends of the supporting base are fixedly connected to a crawler walking assembly, which not only provides support for the drilling, but also does not affect the movement of the drilling position. The crawler walking assembly includes a crawler, a crawler wheel, a crawler frame and a driving motor; wherein the crawler wheel rotates in conjunction with the crawler frame and is driven to rotate by the driving motor, and the crawler wheel is a sprocket that drives the crawler to rotate and walk, and the crawler frame can be used as a base, and the base is fixedly connected to both ends of the supporting base, wherein the crawler is composed of a track plate, a chain rail and a pin shaft. The crawler walking device is a mature existing technology, and the details are not repeated here. The crawler walking structure can adapt to the complex terrain and working environment underground, and the applicable working range of the drill rod conveying device is improved.

[0015] As a further solution of the present invention: both ends of the support base are fixedly connected with connecting frames, the interior of the connecting frame is fixedly connected with a supporting hydraulic cylinder, the output end of the supporting hydraulic cylinder is fixedly connected with a foot pad, the connecting frame, the supporting hydraulic cylinder and the foot pad are combined into a telescopic support assembly, when the telescopic support is extended, the telescopic support assembly is supported on the ground, and the remaining components such as the supporting base and the crawler walking assembly are suspended, providing a stable working environment for the guide drill rod of the horizontal directional drilling rig, and when the telescopic support assembly is shortened, the walking device is supported on the bottom surface to drive the frame assembly and other components to walk.

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

[0017] 1. Through the arrangement of the concave frame, the adjustment bracket and the motor, the motor can adjust the connection angle between the concave frame and the adjustment bracket, and the lower right side of the adjustment bracket can be adjusted to be closely connected with the right side of the support base, so as to achieve the effect of changing the drilling angle, so that the drilling can be carried out more smoothly during operation, thereby improving the use effect of the drilling rig;

[0018] 2. By adjusting the settings of the bracket, positioning frame, mounting frame, mobile slot, drive motor, drill rod, sleeve and mobile frame, the rotation force of the drill rod is given by the drive motor, thus changing the original drilling gear to drive the core shaft to rotate, and the core shaft transmits the rotation power to the core shaft and coupling inside the steel pipe, so that the drill rod rotates as a whole, the rotation force transmission is more direct, and there is no loss of force in the middle, which ensures the stability and continuity of the operation of the drill rod and improves the drilling efficiency. In addition, the drill rod and the drive motor are connected through the intervention of the sleeve, and the drill rod and the sleeve generate magnetic attraction, which not only ensures the connection firmness and operation stability, but also facilitates the replacement of the worn drill rod, making the drilling rig smoother and more convenient when in use, further improving the utilization rate of the drilling rig;

[0019] 3. Through the arrangement of the positioning frame, the slide groove, the connecting block, the sliding frame, the reduction motor, the driving bolt, the connecting frame and the adjusting frame, the connecting frame moves around the groove on the upper part of the adjusting frame, and the connecting frame plays a role of series connection, so that the sliding frame and the positioning frame are connected, so the moving direction of the sliding frame directly controls the moving direction of the positioning frame, so that the position of the positioning frame on the adjusting frame can be adjusted, and the drill rod moves smoothly with the adjustment of the positioning frame, achieving the effect of changing the position, so that it can drill more smoothly during operation, and improve the use effect of the drilling rig;

[0020] 4. Through the arrangement of the vertical bracket, servo motor, driving frame, driving slot, traction frame, traction slot, adjusting bolt, fixed frame, supporting frame and concave frame, the driving frame is respectively arranged on the left side of the fixed frame and the supporting frame, and the adjusting bolt can adjust the lifting of the driving frame on the vertical bracket. In addition, the steering of the adjusting bolt is controlled by the servo motor, so the user can control the activity direction of the driving frame and control the lifting of the drill rod, so as to achieve the effect of changing the angle, so that the drilling can be carried out more smoothly during operation, thereby improving the use effect of the drilling rig;

[0021] 5. Through the arrangement of the support base, crawler walking assembly, connecting frame, foot pad and supporting hydraulic cylinder, the connecting frame, supporting hydraulic cylinder and foot pad are combined into a telescopic support assembly. When the telescopic support is extended, the telescopic support assembly is supported on the ground, and the remaining parts such as the supporting base and crawler walking assembly are suspended, which provides a stable working environment for the guide drill rod of the horizontal directional drilling rig. When the telescopic support assembly is shortened, the walking device is supported on the bottom surface to drive the frame assembly and other parts to walk. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural schematic diagram of a guide drill rod of a horizontal directional drilling rig of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of a lifting mechanism and a drilling mechanism in a guide drill rod of a horizontal directional drilling rig of the present invention;

[0024] Figure 3 It is a structural schematic diagram of a lifting mechanism in a guide drill rod of a horizontal directional drilling rig of the present invention;

[0025] Figure 4 This is a structural schematic diagram of a drilling mechanism and an adjusting mechanism in a guide drill rod of a horizontal directional drilling rig of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of a drilling mechanism in a guide drill rod of a horizontal directional drilling rig of the present invention;

[0027] Figure 6 A guide drill rod of a horizontal directional drilling rig according to the present invention Figure 4The enlarged structural diagram is shown in the figure;

[0028] In the figure: 1. support base; 2. crawler walking assembly; 3. connecting frame; 4. foot pad; 5. supporting hydraulic cylinder; 6. vertical bracket; 7. servo motor; 8. driving frame; 9. driving groove; 10. traction frame; 11. traction groove; 12. adjusting bolt; 13. fixed frame; 14. supporting frame; 15. concave frame; 16. adjusting bracket; 17. motor; 18. positioning frame; 19. mounting frame; 20. moving groove; 21. slide groove; 22. connecting block; 23. driving motor; 24. sliding frame; 25. reduction motor; 26. driving bolt; 27. drill rod; 28. sleeve; 29. ​​connecting frame; 30. sealing ring; 31. moving frame. DETAILED DESCRIPTION

[0029] 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.

[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0031] See also Figures 1 to 6In an embodiment of the present invention, a guide drill rod of a horizontal directional drilling rig includes: a concave frame 15; a motor 17 is fixedly connected to the front end of the concave frame 15, and the output shaft of the motor 17 passes through the front end of the concave frame 15 and is fixedly connected to an adjustment bracket 16. The motor 17 can adjust the connection angle between the concave frame 15 and the adjustment bracket 16, thereby achieving the effect of changing the drilling angle, so that the drilling can be carried out more smoothly during operation, thereby improving the use effect of the drilling rig.

[0032] Please refer to Figures 2 to 6 , since the top of the adjusting bracket 16 is movably connected with a positioning bracket 18, the upper left part of the positioning bracket 18 is fixedly connected with a mounting bracket 19, the center of the mounting bracket 19 is fixedly connected with a driving motor 23, the output shaft of the driving motor 23 is fixedly connected with a sleeve 28, the inner cavity of the sleeve 28 is magnetically connected with a drill rod 27, the upper right part of the positioning bracket 18 is provided with a moving groove 20, the inside of the moving groove 20 is slidably connected with a moving bracket 31, the center of the moving bracket 31 is fixedly connected with a sealing ring 30, the inner wall of the sealing ring 30 is movably connected with the outer wall of the drill rod 27, and the rotation force of the drill rod 27 is driven by the driving motor 23. The motor 23 is provided, thereby changing the original drilling gear to drive the core shaft to rotate, and the core shaft transmits the rotational power to the core shaft and the coupling inside the steel pipe, so that the drill rod 27 rotates as a whole, and the torque transmission is more direct, and there is no force loss in the middle, which ensures the stable and continuous operation of the drill rod 27 and improves the drilling efficiency. In addition, the drill rod 27 is connected to the drive motor 23 through the intervention of the sleeve 28, and the drill rod 27 and the sleeve 28 generate magnetic attraction, which not only ensures the firmness of the connection and the stability of operation, but also facilitates the replacement of the worn drill rod 27, making the drilling rig smoother and more convenient when in use, further improving the utilization rate of the drilling rig.

[0033] The working principle of the present invention is as follows: the drill rod 27 is introduced into the sealing ring 30, the moving frame 31 slides to the left along the moving groove 20 set on the positioning frame 18, and the drill rod 27 is accurately introduced into the sleeve 28, so that the drill rod 27 runs synchronously with the driving shaft of the driving motor 23. In addition, the moving frame 31 slides to the right along the moving groove 20 set on the positioning frame 18, and the drill rod 27 is out of the magnetic range of the sleeve 28, so that the worn drill rod 27 can be taken out of the sealing ring 30 and replaced, which makes the drilling rig more smooth and convenient when in use, and further improves the utilization rate of the drilling rig.

[0034] In other embodiments of the present invention; the back side of the adjusting bracket 16 is respectively fixedly connected with a reduction motor 25 and a connecting block 22, the center of the connecting block 22 is rotatably connected with a driving bolt 26, the left side of the driving bolt 26 is fixedly connected to the output shaft of the reduction motor 25, the connecting block 22 is arranged on the right side of the rear end of the adjusting bracket 16, and the reduction motor 25 is arranged on the left side of the rear end of the adjusting bracket 16. In addition, the center of the reduction motor 25 and the center of the connecting block 25 are symmetrically arranged on the left and right, so the inserted driving bolt 26 runs horizontally, which plays a vital role in the subsequent regulation and control of the movement stability of the positioning frame 18.

[0035] Please refer to Figures 2 to 6 , since the outer wall of the driving bolt 26 is threadedly connected with a sliding frame 24, the back of the adjusting bracket 16 is provided with a sliding groove 21 from the outside to the inside, the sliding frame 24 is movably connected with the groove of the sliding groove 21 at one end of the driving bolt 26, the sliding frame 24 is arranged in the sliding groove 21, and a small part of the rear end of the sliding frame 24 is exposed outside the adjusting bracket 16, and the horizontal movement direction of the sliding frame 24 in the sliding groove 21 is controlled by the driving bolt 26, and the steering direction of the driving bolt 26 is controlled by the reduction motor 25, and the sliding frame 24 is fixedly connected with a connecting frame 29 at one end of the sliding groove 21, The top of the connecting frame 29 is fixedly connected to the bottom of the positioning frame 18, and the connecting frame 29 moves around the upper groove of the adjusting bracket 16, and the connecting frame 29 plays a series role, prompting the sliding frame 24 to be connected with the positioning frame 18. Therefore, the moving direction of the sliding frame 24 directly controls the moving direction of the positioning frame 18, so that the position of the positioning frame 18 on the adjusting bracket 16 can be adjusted. The drill rod 27 moves smoothly with the adjustment of the positioning frame 18, achieving the effect of changing the position, so that it can drill more smoothly during operation, thereby improving the use effect of the drilling rig.

[0036] The working principle of the present invention is: the lower part of the positioning frame 18 is connected with the connecting frame 29 and the sliding frame 24 in sequence, and the moving direction of the sliding frame 24 directly controls the moving direction of the positioning frame 18, and the movement direction of the sliding frame 24 is controlled by the driving bolt 26, and the steering of the driving bolt 26 is controlled by the reduction motor 25, so the moving direction of the sliding frame 24 directly controls the moving direction of the positioning frame 18, so that the position of the positioning frame 18 on the adjusting bracket 16 can be adjusted, and the drill rod 27 moves smoothly with the adjustment of the positioning frame 18, so that the length of the drill rod 27 extending out of the adjusting bracket 16 can be adjusted, so that it can drill more smoothly during operation, thereby improving the use effect of the drilling rig.

[0037] In other embodiments of the present invention; the upper and lower ends of the concave frame 15 are respectively fixedly connected with a fixing frame 13 and a supporting frame 14, the left sides of the fixing frame 13 and the supporting frame 14 are fixedly connected with a driving frame 8, and the front of the driving frame 8 is fixedly connected with a traction frame 10. The fixing frame 13 and the supporting frame 14 are respectively arranged at the upper and lower ends of the left side of the concave frame 15, which can not only support the concave frame 15, but also ensure the stability of the concave frame 15 during subsequent lifting, thereby improving the drilling stability of the drilling rig and the drilling guidance level.

[0038] Please refer to Figures 1 to 3 The center thread of the driving frame 8 is connected with an adjusting bolt 12, the top of the adjusting bolt 12 is fixedly connected with a servo motor 7, the outer wall of the servo motor 7 is fixedly connected with a vertical bracket 6, the driving frame 8 is respectively arranged on the left side of the fixing frame 13 and the supporting frame 14, and the adjusting bolt 12 can play a role in adjusting the lifting of the driving frame 8 on the vertical bracket 6. In addition, the steering of the adjusting bolt 12 is controlled by the servo motor 7, so the user can control the activity direction of the driving frame 8 and control the lifting of the drill rod 27, thereby achieving the effect of changing the angle. So that it can drill more smoothly during operation, improving the use effect of the drilling rig, the upper and lower ends of the vertical bracket 6 are provided with a driving groove 9 and a traction groove 11, the outer wall of the driving frame 8 is movably connected with the groove of the driving groove 9, and the traction frame 10 is movably connected with the groove of the traction groove 11 at one end of the driving frame 8, and the traction frame 10 is arranged on the front side of the driving frame 8, and the traction frame 10 moves stably around the traction groove 11, so the driving frame 8 in the driving groove 9 moves synchronously and stably, and the adjusting bolt 12 can stably control the lifting of the driving frame 8.

[0039] The working principle of the present invention is as follows: the left top of the concave frame 15 is connected to the bottom of the fixed frame 13, the left bottom of the concave frame 15 is connected to the top of the support frame 14, and the driving frame 8 is respectively arranged on the left side of the fixed frame 13 and the support frame 14, and the traction frame 10 is arranged on the front of the driving frame 8. The traction frame 10 moves stably around the traction groove 11, so the driving frame 8 in the driving groove 9 moves synchronously and stably, and the adjusting bolt 12 can stably control the lifting of the driving frame 8, and the steering of the adjusting bolt 12 is controlled by the servo motor 7, so the lifting of the drill rod 27 can be controlled.

[0040] In other embodiments of the present invention; the bottom of the vertical bracket 6 is fixedly connected to a support base 1, and both ends of the support base 1 are fixedly connected to a crawler walking assembly 2, which not only provides support for the drilling, but also does not affect the movement of the drilling position. The crawler walking assembly 2 includes a crawler, a crawler wheel, a crawler frame and a driving motor; wherein the crawler wheel rotates in conjunction with the crawler frame and is driven to rotate by the driving motor, and the crawler wheel is a sprocket that drives the crawler to rotate and walk, and the crawler frame can be used as a base, and the base is fixedly connected to both ends of the support base 1, wherein the crawler is composed of a track plate, a chain rail and a pin shaft. The crawler walking device is a mature existing technology, and the details are not repeated here. The crawler walking structure can adapt to the complex terrain and working environment underground, and the applicable working range of the drill rod conveying device is improved.

[0041] Please refer to Figure 1 Both ends of the support base 1 are fixedly connected with a connecting frame 3, and a supporting hydraulic cylinder 5 is fixedly connected inside the connecting frame 3. The output end of the supporting hydraulic cylinder 5 is fixedly connected with a foot pad 4. The connecting frame 3, the supporting hydraulic cylinder 5 and the foot pad 4 are combined into a telescopic support assembly. When the telescopic support is extended, the telescopic support assembly is supported on the ground, and the remaining components such as the supporting base 1 and the crawler walking assembly 2 are suspended, providing a stable working environment for the guide drill rod of the horizontal directional drilling rig. When the telescopic support assembly is shortened, the walking device is supported on the bottom surface to drive the frame assembly and other components to walk.

[0042] The working principle of the present invention is: the telescopic support assembly is supported on the ground, and the supporting base 1, crawler walking assembly 2 and other parts are suspended, providing a stable working environment for the guide drill rod of the horizontal directional drilling rig; when the telescopic support assembly is shortened, the walking device is supported on the bottom surface to drive the frame assembly and other parts to move.

[0043] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A guide drill rod for a horizontal directional drilling rig, comprising: A concave frame (15); characterized in that: a motor (17) is fixedly connected inside the positive end of the concave frame (15); the output shaft of the motor (17) passes through the front end of the concave frame (15) and is fixedly connected to an adjustment bracket (16); the top of the adjustment bracket (16) is movably connected to a positioning frame (18); the upper left part of the positioning frame (18) is fixedly connected to a mounting frame (19); the center of the mounting frame (19) is fixedly connected to a driving motor (23); the output shaft of the driving motor (23) is fixedly connected to a sleeve (28); the inner cavity of the sleeve (28) is magnetically connected to a drill rod (27); a moving groove (20) is opened on the upper right part of the positioning frame (18); the inside of the moving groove (20) is slidably connected to a moving frame (31).

2. A guide drill rod for a horizontal directional drilling rig according to claim 1, characterized in that: A sealing ring (30) is fixedly connected to the center of the movable frame (31), and the inner wall of the sealing ring (30) is movably connected to the outer wall of the drill rod (27).

3. The guide drill rod of a horizontal directional drilling rig according to claim 1, characterized in that: The back side of the adjustment bracket (16) is respectively fixedly connected to a reduction motor (25) and a connection block (22); the center of the connection block (22) is rotatably connected to a driving bolt (26); the left side of the driving bolt (26) is fixedly connected to the output shaft of the reduction motor (25).

4. A guide drill rod for a horizontal directional drilling rig according to claim 3, characterized in that: The outer wall of the driving bolt (26) is threadedly connected with a sliding frame (24), and a sliding groove (21) is provided on the back of the adjusting bracket (16) from the outside to the inside. The sliding frame (24) is movably connected with the groove of the sliding groove (21) at one end of the driving bolt (26).

5. A guide drill rod for a horizontal directional drilling rig according to claim 4, characterized in that: The sliding frame (24) is fixedly connected to a connecting frame (29) at one end of the sliding groove (21), and the top of the connecting frame (29) is fixedly connected to the bottom of the positioning frame (18).

6. The guide drill rod of a horizontal directional drilling rig according to claim 1, characterized in that: The upper and lower ends of the concave frame (15) are respectively fixedly connected to a fixing frame (13) and a supporting frame (14); the left sides of the fixing frame (13) and the supporting frame (14) are both fixedly connected to a driving frame (8); and the front side of the driving frame (8) is fixedly connected to a traction frame (10).

7. A guide drill rod for a horizontal directional drilling rig according to claim 6, characterized in that: The center thread of the driving frame (8) is connected to an adjusting bolt (12), the top of the adjusting bolt (12) is fixedly connected to a servo motor (7), and the outer wall of the servo motor (7) is fixedly connected to a vertical bracket (6).

8. The guide drill rod of a horizontal directional drilling rig according to claim 7, characterized in that: The upper and lower ends of the vertical bracket (6) are both provided with a driving groove (9) and a traction groove (11); the outer wall of the driving frame (8) is movably connected to the groove of the driving groove (9); and the traction frame (10) is movably connected to the groove of the traction groove (11) at one end of the driving frame (8).

9. The guide drill rod of a horizontal directional drilling rig according to claim 7, characterized in that: The bottom of the vertical bracket (6) is fixedly connected to a support base (1), and both ends of the support base (1) are fixedly connected to crawler-type walking assemblies (2).

10. A guide drill rod for a horizontal directional drilling rig according to claim 9, characterized in that: Both ends of the support base (1) are fixedly connected to a connecting frame (3), the interior of the connecting frame (3) is fixedly connected to a supporting hydraulic cylinder (5), and the output end of the supporting hydraulic cylinder (5) is fixedly connected to a foot pad (4).

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