A mechanical linkage drill rod support device for a horizontal directional drilling rig

Abstract

This utility model discloses a mechanical linkage drill rod support device for a horizontal directional drilling rig, including a base frame. An active bracket and a driven bracket are respectively arranged inside the base frame. The lower end of the active bracket is rotatably connected to the base frame. The active and driven brackets have identical internal structures. A linkage frame is provided between the active and driven brackets. The linkage frame includes a square tube, an adjusting plate, a first connecting plate, and a second connecting plate. One end of the second connecting plate is rotatably connected to the driven bracket. The square tube is fixedly installed on one side of the second connecting plate. The adjusting plate is located on one side of the square tube, and one end of the adjusting plate slides into the interior of the square tube. This device enables adjustment of the distance between the two brackets, increasing practicality and solving the problem that when the support device supports drill rods of different lengths, the bracket spacing cannot be flexibly adjusted according to the actual length of the drill rod, affecting the stability and safety of drill rod loading and unloading.

Description

Technical Field

[0001] This utility model relates to the field of support device technology, specifically a mechanical linkage drill rod support device for a horizontal directional drilling rig. Background Technology

[0002] Horizontal directional drilling rigs are construction machines used to lay various underground utilities (pipelines, cables, etc.) without excavating the ground surface. They are widely used in the construction of flexible pipelines for water supply, electricity, telecommunications, natural gas, coal gas, and oil. They are suitable for sandy soil, clay and other soil conditions. When loading and unloading drill rods, horizontal directional drilling rigs require support devices to support the drill rods.

[0003] For example, the patent with publication number CN213807600U (A mechanical linkage drill rod support device for a horizontal directional drilling rig and a horizontal directional drilling rig) includes a first drill rod bracket, a second drill rod bracket, a connecting rod, and a telescopic component; the first drill rod bracket and the second drill rod bracket are respectively hinged to the drill frame; the connecting rod is used to connect the first drill rod bracket and the second drill rod bracket to form a linkage structure; one end of the telescopic component is connected to the drill frame, and the other end is connected to the first drill rod bracket; the telescopic component reciprocates to drive the first drill rod bracket and the second drill rod bracket to rotate, so that when loading and unloading the drill rod, the drill rod bracket rotates counterclockwise to a predetermined position to support the drill rod; after the drill rod is loaded and unloaded, the first drill rod bracket and the second drill rod bracket rotate clockwise into the drill frame to avoid the power head.

[0004] While the existing technology ensures that the drill rod remains parallel to the drill frame during loading and unloading of drill rods in horizontal directional drilling rigs, it lacks a distance adjustment structure between the two supports. Consequently, when the support device supports drill rods of different lengths, it cannot flexibly adjust the support spacing according to the actual length of the drill rod. This results in longer drill rods lacking sufficient support during the lifting process, making them prone to swaying, shifting, or even falling, affecting the stability and safety of drill rod loading and unloading. Therefore, there is an urgent market need to develop a mechanical linkage drill rod support device for horizontal directional drilling rigs to help solve the existing problems. Utility Model Content

[0005] The purpose of this utility model is to provide a mechanical linkage drill rod support device for horizontal directional drilling rigs, so as to solve the problem mentioned in the background art that when the support device supports drill rods of different lengths, it is impossible to flexibly adjust the bracket spacing according to the actual length of the drill rod, which affects the stability and safety of drill rod loading and unloading.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a mechanical linkage drill rod support device for a horizontal directional drilling rig, comprising a device base frame, wherein an active bracket and a driven bracket are respectively arranged inside the device base frame, the lower end of the active bracket is rotatably connected to the device base frame, the active bracket and the driven bracket have the same internal structure, and a linkage rod frame is arranged between the active bracket and the driven bracket, the linkage rod frame comprising a square tube, an adjusting plate, a first connecting plate and a second connecting plate, one end of the second connecting plate being rotatably connected to the driven bracket, the square tube being fixedly installed on one side of the second connecting plate, the adjusting plate being arranged on one side of the square tube, and one end of the adjusting plate slidingly extending into the interior of the square tube, the first connecting plate being fixedly installed on one side of the adjusting plate, and one end of the first connecting plate being rotatably connected to the active bracket.

[0007] Preferably, the adjusting plate has multiple positioning holes inside, which are arranged horizontally at intervals, and a protruding box is fixedly installed at the front end of the square tube.

[0008] Preferably, a compression spring is fixedly installed inside the convex box, a spring plate is fixedly installed above the compression spring, a positioning pin is fixedly installed above the spring plate, the upper end of the positioning pin slides to the outside of the convex box and inserts into the inside of the positioning hole, a pull rod is provided inside the compression spring, the upper end of the pull rod is fixedly connected to the spring plate, and the lower end of the pull rod slides to the bottom of the convex box and is fixedly installed with a pull plate.

[0009] Preferably, both the active bracket and the driven bracket have grooves on their upper surfaces, and rollers are rotatably installed inside the grooves of both the active bracket and the driven bracket.

[0010] Preferably, a support arm is fixedly installed on one side of the active bracket, a transmission plate is rotatably installed on one side of the support arm, a hydraulic cylinder is provided below the transmission plate, the lower end of the hydraulic cylinder is hinged to the device base frame, and the piston rod end of the hydraulic cylinder is fixedly connected to the transmission plate.

[0011] Preferably, the front and rear faces of the device base are provided with inner sliding grooves, and the interior of each inner sliding groove is provided with a slider. The lower end of the driven bracket is rotatably connected to the slider. The front and rear faces of the device base are provided with outer slots, and the outer slots are connected to the inner sliding grooves.

[0012] Preferably, a handwheel is provided at the front end of the device base, and a threaded rod is fixedly installed on the side of the handwheel facing the device base. The threaded rod passes through the outer slot and is threadedly connected to the slider. A fixing plate is fixedly installed on the outer side of the threaded rod, and the fixing plate is in contact with the outer end face of the device base.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, by setting up a linkage frame including a square tube, an adjusting plate, a connecting plate one, and a connecting plate two, realizes the linkage between the active bracket and the driven bracket, and has an adjustable structure for the distance between the two brackets. This allows the bracket spacing to be flexibly adjusted according to the actual length of the drill rod when the support device is supporting drill rods of different lengths. This provides sufficient and suitable support for longer drill rods during the lifting process, effectively avoiding the problems of drill rod swaying, deviation, or even falling due to insufficient support, and greatly improving the stability and safety of drill rod loading and unloading.

[0015] 2. This utility model, through the cooperation of multiple positioning holes and positioning pins, enables the adjustment plate to be positioned within the square tube for telescopic adjustment, ensuring the stability of the distance between the two brackets after adjustment, avoiding unexpected changes in the bracket spacing due to external forces or other factors during use, and increasing practicality.

[0016] 3. By incorporating a hydraulic cylinder, this utility model provides a stable and powerful driving force, ensuring that the active support can rotate smoothly and reliably. It can accurately control the movement angle and position of the active support, meeting the requirements for drill rod lifting height under different working conditions, thereby achieving effective lifting and support of the drill rod. Attached Figure Description

[0017] Figure 1 This is a front view of a mechanical linkage drill rod support device for a horizontal directional drilling rig according to the present invention;

[0018] Figure 2 This is a sectional view of a mechanical linkage drill rod support device for a horizontal directional drilling rig according to the present invention;

[0019] Figure 3 This is a top sectional view of the convex box of this utility model;

[0020] Figure 4 This is a top sectional view of the connection between the device base, slider, and handwheel of this utility model.

[0021] In the diagram: 1. Device base frame; 101. Inner slide groove; 102. Outer groove hole; 2. Active bracket; 3. Driven bracket; 4. Linkage rod frame; 401. Square tube; 402. Adjusting plate; 4021. Positioning hole; 403. Connecting plate one; 404. Connecting plate two; 5. Roller; 6. Protruding box; 7. Support arm; 8. Transmission plate; 9. Hydraulic cylinder; 10. Sliding block; 11. Positioning pin; 12. Spring plate; 13. Compression spring; 14. Pull rod; 15. Pull plate; 16. Handwheel; 17. Threaded rod; 18. Fixing plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-4 This utility model provides an embodiment of a mechanical linkage drill rod support device for a horizontal directional drilling rig, comprising a device base frame 1, which is configured as a U-shaped plate. An active bracket 2 and a driven bracket 3 are respectively arranged inside the device base frame 1. Both the active bracket 2 and the driven bracket 3 are elongated plates. The lower end of the active bracket 2 is rotatably connected to the device base frame 1. The active bracket 2 and the driven bracket 3 have identical internal structures. A linkage rod frame 4 is arranged between the active bracket 2 and the driven bracket 3. The frame 4 includes a square tube 401, an adjusting plate 402, a first connecting plate 403, and a second connecting plate 404. One end of the second connecting plate 404 is rotatably connected to the driven bracket 3. The square tube 401 is fixedly installed on one side of the second connecting plate 404. The adjusting plate 402 is disposed on one side of the square tube 401, and one end of the adjusting plate 402 slides into the interior of the square tube 401. The first connecting plate 403 is fixedly installed on one side of the adjusting plate 402, and one end of the first connecting plate 403 is rotatably connected to the active bracket 2.

[0024] By setting up the linkage frame 4, the linkage between the active bracket 2 and the driven bracket 3 is realized. Furthermore, by adjusting the extension and retraction of the adjusting plate 402 within the square tube 401, the overall length of the linkage frame 4 can be easily adjusted, thereby adjusting the distance between the two brackets. This provides sufficient and suitable support for longer drill pipes during the lifting process, improving the stability and safety of drill pipe loading and unloading.

[0025] Furthermore, the adjusting plate 402 has multiple positioning holes 4021 inside, which are arranged horizontally at intervals. A protruding box 6 is fixedly installed at the front end of the square tube 401. A compression spring 13 is fixedly installed inside the protruding box 6. A spring plate 12 is fixedly installed above the compression spring 13. A positioning pin 11 is fixedly installed above the spring plate 12. The upper end of the positioning pin 11 slides to the outside of the protruding box 6 and is inserted into the inside of the positioning hole 4021. A pull rod 14 is provided inside the compression spring 13. The upper end of the pull rod 14 is fixedly connected to the spring plate 12. The lower end of the pull rod 14 slides to the bottom of the protruding box 6 and is fixedly installed with a pull plate 15.

[0026] The cooperation of multiple positioning holes 4021 and positioning pins 11 enables the telescopic adjustment of the adjusting plate 402 within the square tube 401 to achieve positioning, ensuring the stability of the distance between the two brackets after adjustment. This avoids unexpected changes in the bracket spacing due to external forces or other factors during use, which could affect the support effect on the drill rod. Furthermore, by pulling the pull plate 15, the pull rod 14, the spring plate 12, and the positioning pins 11 can be moved downwards, easily releasing the positioning and realizing the telescopic adjustment of the adjusting plate 402. The operation is simple and convenient, improving the adjustment efficiency. Moreover, the compression spring 13 provides a stable rebound force for the positioning pins 11, ensuring that the positioning pins 11 can be firmly inserted into the positioning holes 4021, increasing practicality.

[0027] Furthermore, both the active bracket 2 and the driven bracket 3 have grooves on their upper surfaces, and rollers 5 are rotatably installed inside the grooves of both the active bracket 2 and the driven bracket 3. The rollers 5 are V-groove rollers.

[0028] The installation of roller 5 reduces the friction between the drill rod and the bracket, allowing the drill rod to move more smoothly on the bracket. This reduces energy loss and wear caused by friction, extending the service life of both the drill rod and the bracket. The use of V-groove rollers facilitates a better fit to the shape of the drill rod, further enhancing the support and limiting effect on the drill rod. This helps the drill rod maintain stability during movement and increases its practicality.

[0029] Furthermore, a support arm 7 is fixedly installed on one side of the active bracket 2, and a transmission plate 8 is rotatably installed on one side of the support arm 7. A hydraulic cylinder 9 is provided below the transmission plate 8. The lower end of the hydraulic cylinder 9 is hinged to the device base frame 1, and the piston rod end of the hydraulic cylinder 9 is fixedly connected to the transmission plate 8.

[0030] By connecting the transmission plate 8 and the support arm 7, the linear motion of the hydraulic cylinder 9 is converted into the rotational motion of the active bracket 2. This transmission method has a simple structure and high transmission efficiency. It can adjust the motion angle and position of the active bracket 2 to meet the requirements of drill rod lifting height under different working conditions. In addition, the hinged connection between the hydraulic cylinder 9 and the device base frame 1 allows the hydraulic cylinder 9 to adapt to the angle changes during the movement of the active bracket 2, ensuring the flexibility and stability of the entire drive structure.

[0031] Furthermore, inner sliding grooves 101 are provided on the front and rear surfaces of the inner side of the device base 1, and sliders 10 are provided inside the two inner sliding grooves 101. The lower end of the driven bracket 3 is rotatably connected to the sliders 10. Outer slots 102 are provided on the front and rear surfaces of the outer side of the device base 1. The outer slots 102 communicate with the inner sliding grooves 101. A handwheel 16 is provided at the front end of the device base 1. A threaded rod 17 is fixedly installed on the side of the handwheel 16 facing the device base 1. The threaded rod 17 passes through the outer slot 102 and is threadedly connected to the sliders 10. A fixing plate 18 is fixedly installed on the outer side of the threaded rod 17. The fixing plate 18 contacts the outer end face of the device base 1.

[0032] By rotating the handwheel 16, the threaded rod 17 is driven to rotate. Utilizing the threaded connection between the threaded rod 17 and the slider 10, and with the tight contact between the fixed plate 18 and the device base 1, the slider 10 can be fixed in position within the inner groove 101. This facilitates the positional stability of the driven bracket 3 after adjusting the distance between the driven bracket 3 and the driving bracket 2. Furthermore, the cooperation between the inner groove 101 and the slider 10 provides stable guidance for the movement of the driven bracket 3, ensuring that the driven bracket 3 remains stable during movement and does not deviate or shake.

[0033] Working principle: In use, the device base frame 1 is installed on the drill frame of the horizontal directional drilling machine. The transmission plate 8 is driven by the hydraulic cylinder 9 to move the support arm 7, so that the active bracket 2 rotates around the hinge point of the base frame. At the same time, the mechanical linkage of the linkage rod frame 4 drives the driven bracket 3 to move synchronously. When it is necessary to adjust the distance between the two brackets, first pull down the pull plate 15 to make the positioning pin 11 disengage from the positioning hole 4021 of the adjustment plate 402. Then slide the extension length of the adjustment plate 402 in the square tube 401. After adjustment, release the pull plate 15. The compression spring 13 pushes the positioning pin 11 to re-insert into the corresponding positioning hole to lock it. The roller 5 provides rolling support when lifting the drill rod, effectively reducing friction and realizing stable lifting of drill rods of different lengths within a certain range.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A mechanical linkage drill rod support device for a horizontal directional drilling rig, comprising a device base frame (1), characterized in that: The device base frame (1) is provided with an active bracket (2) and a driven bracket (3) respectively. The lower end of the active bracket (2) is rotatably connected to the device base frame (1). The active bracket (2) and the driven bracket (3) have the same internal structure. A linkage frame (4) is provided between the active bracket (2) and the driven bracket (3). The linkage frame (4) includes a square tube (401), an adjusting plate (402), a connecting plate one (403), and a connecting plate two (404). One end of the second connecting plate (404) is rotatably connected to the driven bracket (3). The square tube (401) is fixedly installed on one side of the second connecting plate (404). The adjusting plate (402) is set on one side of the square tube (401), and one end of the adjusting plate (402) slides into the interior of the square tube (401). The first connecting plate (403) is fixedly installed on one side of the adjusting plate (402), and one end of the first connecting plate (403) is rotatably connected to the active bracket (2).

2. The mechanical linkage drill rod support device for a horizontal directional drilling rig according to claim 1, characterized in that: The adjusting plate (402) has multiple positioning holes (4021) inside, and the multiple positioning holes (4021) are arranged horizontally at intervals. A protruding box (6) is fixedly installed at the front end of the square tube (401).

3. The mechanical linkage drill rod support device for a horizontal directional drilling rig according to claim 2, characterized in that: A compression spring (13) is fixedly installed inside the convex box (6). A spring plate (12) is fixedly installed above the compression spring (13). A positioning pin (11) is fixedly installed above the spring plate (12). The upper end of the positioning pin (11) slides to the outside of the convex box (6) and is inserted into the inside of the positioning hole (4021). A pull rod (14) is provided inside the compression spring (13). The upper end of the pull rod (14) is fixedly connected to the spring plate (12). The lower end of the pull rod (14) slides to the bottom of the convex box (6) and is fixedly installed with a pull plate (15).

4. The mechanical linkage drill rod support device for a horizontal directional drilling rig according to claim 1, characterized in that: The active bracket (2) and the driven bracket (3) are both provided with grooves on their upper surfaces, and rollers (5) are rotatably installed inside the grooves of the active bracket (2) and the driven bracket (3).

5. The mechanical linkage drill rod support device for a horizontal directional drilling rig according to claim 1, characterized in that: A support arm (7) is fixedly installed on one side of the active bracket (2), and a transmission plate (8) is rotatably installed on one side of the support arm (7). A hydraulic cylinder (9) is provided below the transmission plate (8). The lower end of the hydraulic cylinder (9) is hinged to the device base frame (1), and the piston rod end of the hydraulic cylinder (9) is fixedly connected to the transmission plate (8).

6. The mechanical linkage drill rod support device for a horizontal directional drilling rig according to claim 1, characterized in that: The device base frame (1) has an inner sliding groove (101) on both the front and rear surfaces. A slider (10) is provided inside each of the two inner sliding grooves (101). The lower end of the driven bracket (3) is rotatably connected to the slider (10). An outer slot hole (102) is provided on both the front and rear surfaces of the device base frame (1). The outer slot hole (102) is connected to the inner sliding groove (101).

7. A mechanical linkage drill rod support device for a horizontal directional drilling rig according to claim 6, characterized in that: A handwheel (16) is provided at the front end of the device base (1). A threaded rod (17) is fixedly installed on the side of the handwheel (16) facing the device base (1). The threaded rod (17) passes through the outer slot (102) and is threadedly connected to the slider (10). A fixing plate (18) is fixedly installed on the outer side of the threaded rod (17). The fixing plate (18) is in contact with the outer end face of the device base (1).

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