A guiding and dragging device for quick removal of hydraulic support in a well

Abstract

The utility model relates to underground hydraulic support quick removal technical field discloses a kind of guiding haulage device for underground hydraulic support quick removal, including guide rail, the guide rail inside is provided with guide slot, the guide rail top is slidably connected with sliding plate, the sliding plate lateral wall is rotatably connected with pulley, the pulley is slidably connected in the guide slot inside, the sliding plate top is provided with hydraulic support, the hydraulic support lateral wall is fixedly connected with tow ring pole, the sliding plate lateral wall is fixedly connected with connecting plate, the connecting plate is slidably connected in the guide rail top, the guide rail top is provided with multiple limit grooves. In the utility model, the pulley of the sliding plate lateral wall is driven along guide slot by the guide slot inside guide rail, so as to reach the effect that hydraulic support is quickly removed, solve the problem that hydraulic support moves difficultly, positioning is not accurate due to narrow underground space, improve the efficiency and stability of removal process.

Description

Technical Field

[0001] This utility model relates to the field of rapid removal technology of downhole hydraulic supports, and in particular to a guiding and towing device for rapid removal of downhole hydraulic supports. Background Technology

[0002] This guide and towing device for the rapid removal of underground hydraulic supports belongs to the field of equipment relocation technology in fully mechanized coal mining faces. With increasing coal mining depth and increasingly complex underground working face environments, the retraction efficiency of hydraulic supports, as core support equipment, directly impacts production continuity and safety levels. Traditional manual towing methods are no longer sufficient to meet the demands of efficient and intensive mining, necessitating a specialized device integrating guiding, moving, and locking functions to achieve rapid positioning, smooth transfer, and efficient assembly and disassembly of hydraulic supports in narrow roadways. This technology stems from the trend towards intelligent and efficient development of mining equipment, aiming to improve the engineering applicability and operational reliability of underground equipment relocation through mechanical structural innovation.

[0003] In existing technologies, the removal of underground hydraulic supports mostly employs a traction winch combined with a pulley system. Its mechanical structure typically consists of a track beam and a pulley device. The technical principle lies in using a winch cable to bypass fixed pulleys, and through the traction force of the winch, moving the support base within a tunnel equipped with simple tracks.

[0004] The main problems with existing technologies are: the underground space is narrow and the environment is complex; during the removal of hydraulic supports, due to the lack of precise guidance and stable locking mechanisms, problems such as high movement resistance and frequent positioning deviations often occur. During traction and towing, the supports are prone to jamming or displacement, requiring repeated adjustments to their posture. This not only involves high operational intensity and low efficiency, but also poses safety risks such as equipment collisions and support failures due to inaccurate positioning, severely restricting the rapid relocation of equipment at the working face and the resumption of production. Therefore, a guiding and towing device for the rapid removal of underground hydraulic supports is proposed to solve these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a guiding and towing device for the rapid removal of downhole hydraulic supports. It aims to improve the problems in the existing technology where the downhole space is narrow and the environment is complex, and the hydraulic supports often experience high movement resistance and frequent positioning deviations during the removal process due to the lack of precise guidance and stable locking mechanism.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A guiding and towing device for rapid removal of downhole hydraulic supports includes a guide rail with a guide groove inside. A sliding plate is slidably connected to the top of the guide rail, and a pulley is rotatably connected to the side wall of the sliding plate. The pulley is slidably connected inside the guide groove. A hydraulic support is provided on the top of the sliding plate, and a drag ring rod is fixedly connected to the side wall of the hydraulic support. A connecting plate is fixedly connected to the side wall of the sliding plate and slidably connected to the top of the guide rail. Multiple limiting grooves are provided on the top of the guide rail, and a hollow column is fixedly connected to the top of the connecting plate. A limiting component is provided inside the hollow column.

[0008] The limiting component includes a limiting post, which is slidably connected inside the hollow column. The bottom of the hollow column engages with the limiting groove. An unlocking component is provided on the outer wall of the limiting post, and a fixing component is provided on the top of the hydraulic support.

[0009] As a further description of the above technical solution:

[0010] The unlocking component includes a fixing ring, the inner wall of which is fixedly connected to the outer wall of the limiting post, and the fixing ring is slidably connected to the inner wall of the hollow post.

[0011] As a further description of the above technical solution:

[0012] The hollow column has an unlocking groove on its outer wall, the fixing ring is slidably connected inside the unlocking groove, a sliding ring is slidably connected inside the hollow column, and the limiting column is rotatably connected to the inner wall of the sliding ring.

[0013] As a further description of the above technical solution:

[0014] A spring is fitted on the outer wall of the limiting column. One end of the spring is fixedly connected to the top of the sliding ring, and the other end of the spring is fixedly connected to the inner wall of the hollow column.

[0015] As a further description of the above technical solution:

[0016] The fixing component includes a pressure frame, the bottom of which is pressed against the interior of the hydraulic support, and a symmetrical limiting rod is fixedly connected inside the hydraulic support.

[0017] As a further description of the above technical solution:

[0018] A fixed frame is fixedly connected inside the sliding plate, a hydraulic cylinder is fixedly connected inside the fixed frame, and a notch frame is fixedly connected to the output end of the hydraulic cylinder.

[0019] As a further description of the above technical solution:

[0020] The notch frame is rotatably connected to a rotating rod frame inside, and the pressure frame is rotatably connected to the outer wall of the rotating rod frame.

[0021] As a further description of the above technical solution:

[0022] A fixing plate is fixedly connected to the side wall of the fixing frame, and the pressure frame is rotatably connected to the inner wall of the fixing plate.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the guide groove inside the guide rail drives the pulley on the side wall of the sliding plate to slide along the guide groove. Then, the sliding plate drives the top hydraulic support to move along the guide rail. At the same time, the limiting post inside the hollow column engages with the limiting groove at the top of the guide rail, causing the connecting plate to lock the position of the sliding plate. If adjustment is required, the fixing ring in the unlocking assembly slides along the unlocking groove, and the sliding ring slides along the inner wall of the hollow column, causing the limiting post to disengage from the limiting groove and release the lock. This allows the hydraulic support to move stably or be limited along the guide rail, thereby achieving the effect of rapid removal of the hydraulic support. This solves the problem of difficult movement and inaccurate positioning of the hydraulic support due to the narrow downhole space, and improves the efficiency and stability of the removal process.

[0025] 2. In this utility model, the output end of the hydraulic cylinder inside the fixed frame drives the notch frame to move horizontally. Then, the notch frame drives the internal rotating rod frame to rotate. The rotating rod frame drives the pressure frame on the outer wall to flip along the inner wall of the fixed plate, thereby making the pressure frame tightly pressed against the inside of the hydraulic support, fixing the hydraulic support on the sliding plate. When disassembling, the hydraulic cylinder retracts to drive the notch frame to move in the opposite direction, causing the pressure frame to detach from the hydraulic support and release the fixation. This achieves the effect of making the hydraulic support stable during towing and convenient during disassembly, solving the problems of easy shaking and cumbersome disassembly operation of underground hydraulic supports during towing, and improving the safety of towing and the convenience of assembly and disassembly. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a guiding and towing device for rapid removal of downhole hydraulic supports proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the sliding plate structure of a guide and towing device for rapid removal of downhole hydraulic supports proposed in this utility model;

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 This is a schematic diagram of the limiting rod structure of a guide and towing device for rapid removal of downhole hydraulic supports proposed in this utility model;

[0030] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0031] Legend:

[0032] 1. Guide rail; 2. Guide groove; 3. Sliding plate; 4. Pulley; 5. Hydraulic support; 6. Connecting plate; 7. Limiting groove; 8. Dragging ring rod; 9. Hollow column; 10. Limiting column; 11. Sliding ring; 12. Fixing ring; 13. Spring; 14. Unlocking groove; 15. Limiting rod; 16. Fixing frame; 17. Hydraulic cylinder; 18. Notch frame; 19. Rotating rod frame; 20. Pressure frame; 21. Fixing plate. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figure 1 - Figure 5 This utility model provides an embodiment of a guide and towing device for the rapid removal of a downhole hydraulic support 5. The device includes a guide rail 1 with a guide groove 2 inside, which provides a precise movement path to ensure the equipment moves linearly in a predetermined direction. A sliding plate 3 is slidably connected to the top of the guide rail 1, serving as a support platform to directly support the hydraulic support 5. A pulley 4 is rotatably connected to the side wall of the sliding plate 3, slidingly connected inside the guide groove 2. This pulley 4 reduces movement resistance through rolling friction, allowing the sliding plate 3 to drive the hydraulic support... The frame 5 slides easily along the guide rail 1. A hydraulic support 5 is provided on the top of the sliding plate 3. A drag ring rod 8 is fixedly connected to the side wall of the hydraulic support 5 for connecting external traction equipment. A connecting plate 6 is fixedly connected to the side wall of the sliding plate 3. The connecting plate 6 is slidably connected to the top of the guide rail 1 and serves to connect the sliding plate 3 with the locking mechanism. Multiple limit grooves 7 are provided on the top of the guide rail 1 to achieve precise locking of the sliding plate 3 at different positions on the guide rail 1. A hollow column 9 is fixedly connected to the top of the connecting plate 6. A limit component is provided inside the hollow column 9, which serves as the housing of the locking function actuator.

[0035] The limiting assembly includes a limiting post 10, which is slidably connected inside the hollow post 9. Its function is to directly insert into the limiting groove 7 to achieve mechanical interlocking. The bottom of the hollow post 9 engages with the limiting groove 7, preventing accidental movement of the sliding plate 3 and ensuring the stability of the hydraulic support 5 during towing and removal. An unlocking assembly is provided on the outer wall of the limiting post 10 to release the lock when movement is required. A fixing assembly is provided on the top of the hydraulic support 5 to further secure the support during towing and prevent swaying. The unlocking assembly includes a fixing ring 12, whose inner wall is fixedly connected to the outer wall of the limiting post 10. Its function is to convert the up-and-down movement of the limiting post 10 into a rotational unlocking action. The fixing ring 12 is slidably connected to the hollow post 9. The inner wall of the hollow column 9 and the outer wall of the hollow column 9 are provided with unlocking grooves 14. The fixing ring 12 is slidably connected inside the unlocking groove 14. Its function is to guide the fixing ring 12 to move along a specific inclined groove, thereby driving the limiting column 10 to rise and disengage from the limiting groove 7. The hollow column 9 is slidably connected with a sliding ring 11. The limiting column 10 is rotatably connected to the inner wall of the sliding ring 11. The sliding ring 11 plays the role of supporting and transmitting the force of the spring 13. The outer wall of the limiting column 10 is fitted with a spring 13. One end of the spring 13 is fixedly connected to the top of the sliding ring 11, and the other end of the spring 13 is fixedly connected to the inner wall of the hollow column 9. Its function is to provide continuous downward pressure so that the limiting column 10 automatically maintains the engagement state with the limiting groove 7 when not in operation, thereby achieving automatic locking.

[0036] Reference Figure 1 - Figure 5The fixing component includes a pressure frame 20, the bottom of which presses against the interior of the hydraulic support 5. Its function is to firmly fix the hydraulic support 5 onto the sliding plate 3 by applying pressure, preventing displacement or shaking during transportation. A symmetrical limiting rod 15 is fixedly connected inside the hydraulic support 5, providing lateral limiting and working in conjunction with the pressure frame 20 to precisely constrain the position of the hydraulic support 5. A fixing frame 16 is fixedly connected inside the sliding plate 3, serving as the base of the entire fixing component and providing a stable mounting foundation for its internal actuators. A hydraulic cylinder 17 is fixedly connected inside the fixing frame 16, acting as a power source. The extension and retraction of its output end provides the necessary driving force for clamping and releasing actions. A notch frame is fixedly connected to the output end of the hydraulic cylinder 17. 18. The notch frame 18 is used to transmit the linear motion of the hydraulic cylinder 17 to the rotating rod frame 19. The rotating rod frame 19 is rotatably connected inside the notch frame 18. The rotating rod frame 19 converts the received linear motion into rotational motion, thereby driving the pressure frame 20 to move. The pressure frame 20 is rotatably connected to the outer wall of the rotating rod frame 19. Its effect is that the rotation of the rotating rod frame 19 can control the lifting or pressing of the pressure frame 20, realizing the clamping and releasing of the hydraulic support 5. The fixed plate 21 is fixedly connected to the side wall of the fixed frame 16. The fixed plate 21 provides another rotation fulcrum for the pressure frame 20, ensuring the stability of its movement trajectory. The pressure frame 20 is rotatably connected to the inner wall of the fixed plate 21. Its function is to form a linkage mechanism together with the rotating rod frame 19, efficiently converting the linear thrust of the hydraulic cylinder 17 into the downward clamping force of the pressure frame 20.

[0037] Working principle: The guide groove 2 inside the guide rail 1 provides a sliding path for the pulley 4 on the side wall of the sliding plate 3. The pulley 4 slides along the guide groove 2, causing the sliding plate 3 to slide on the top of the guide rail 1. The sliding plate 3 moves the hydraulic support 5 on its top along the direction of the guide rail 1. At the same time, the sliding plate 3 also moves the connecting plate 6 fixedly connected to it on the top of the guide rail 1. When it is necessary to position the hydraulic support 5, the limiting post 10 inside the hollow column 9 engages with the limiting groove 7 on the top of the guide rail 1, driving the connecting plate 6 to be fixed, thereby locking the position of the sliding plate 3. If it is necessary to adjust the position of the hydraulic support 5, the fixing ring 12 in the unlocking assembly slides along the unlocking groove 14 on the outer wall of the hollow column 9. The sliding of the fixing ring 12 moves the limiting post 10 fixedly connected to it. The movement of the limiting post 10 moves the sliding ring 11 rotatably connected to it along the inner wall of the hollow column 9. At the same time, the spring 13 on the outer wall of the limiting post 10 is compressed, and finally... The limiting post 10 is disengaged from the limiting groove 7 to release the lock, allowing the hydraulic support 5 to continue moving along the guide rail 1. Before towing the hydraulic support 5, the output end of the hydraulic cylinder 17 in the fixed frame 16 inside the sliding plate 3 extends, causing the notch frame 18 fixedly connected to it to move horizontally. The movement of the notch frame 18 causes the rotating rod frame 19 inside it to rotate. The rotation of the rotating rod frame 19 causes the pressure frame 20 rotatably connected to its outer wall to flip along the inner wall of the fixed plate 21. At the same time, the pressure frame 20 cooperates with the limiting rod 15 inside the hydraulic support 5, so that the pressure frame 20 is tightly pressed against the inside of the hydraulic support 5, fixing the hydraulic support 5 on the sliding plate 3. When it is necessary to remove the hydraulic support 5, the output end of the hydraulic cylinder 17 retracts, causing the notch frame 18 to move in the opposite direction, which in turn causes the rotating rod frame 19 to rotate in the opposite direction. The rotating rod frame 19 causes the pressure frame 20 to flip and disengage from the hydraulic support 5, releasing the fixation. With the help of the drag ring 8, the hydraulic support 5 can be quickly removed.

Claims

1. A guiding and towing device for rapid removal of downhole hydraulic supports, comprising a guide rail (1), characterized in that: The guide rail (1) has a guide groove (2) inside. The top of the guide rail (1) is slidably connected to a sliding plate (3). The side wall of the sliding plate (3) is rotatably connected to a pulley (4). The pulley (4) is slidably connected inside the guide groove (2). The top of the sliding plate (3) is provided with a hydraulic support (5). The side wall of the hydraulic support (5) is fixedly connected to a drag ring rod (8). The side wall of the sliding plate (3) is fixedly connected to a connecting plate (6). The connecting plate (6) is slidably connected to the top of the guide rail (1). The top of the guide rail (1) has multiple limiting grooves (7). The top of the connecting plate (6) is fixedly connected to a hollow column (9). The hollow column (9) is provided with a limiting component inside. The limiting component includes a limiting post (10), which is slidably connected inside the hollow post (9). The bottom of the hollow post (9) engages with the limiting groove (7). An unlocking component is provided on the outer wall of the limiting post (10), and a fixing component is provided on the top of the hydraulic support (5).

2. The guiding and towing device for rapid removal of downhole hydraulic supports according to claim 1, characterized in that: The unlocking component includes a fixing ring (12), the inner wall of which is fixedly connected to the outer wall of the limiting post (10), and the fixing ring (12) is slidably connected to the inner wall of the hollow post (9).

3. A guiding and towing device for rapid removal of downhole hydraulic supports according to claim 2, characterized in that: The hollow column (9) has an unlocking groove (14) on its outer wall. The fixing ring (12) is slidably connected inside the unlocking groove (14). The hollow column (9) has a sliding ring (11) slidably connected inside. The limiting column (10) is rotatably connected to the inner wall of the sliding ring (11).

4. A guiding and towing device for rapid removal of downhole hydraulic supports according to claim 3, characterized in that: A spring (13) is fitted on the outer wall of the limiting post (10). One end of the spring (13) is fixedly connected to the top of the sliding ring (11), and the other end of the spring (13) is fixedly connected to the inner wall of the hollow post (9).

5. A guiding and towing device for rapid removal of downhole hydraulic supports according to claim 1, characterized in that: The fixing component includes a pressure frame (20), the bottom of which is pressed against the inside of the hydraulic support (5), and a symmetrical limiting rod (15) is fixedly connected inside the hydraulic support (5).

6. A guiding and towing device for rapid removal of downhole hydraulic supports according to claim 5, characterized in that: The sliding plate (3) is fixedly connected to a fixed frame (16), the fixed frame (16) is fixedly connected to a hydraulic cylinder (17), and the output end of the hydraulic cylinder (17) is fixedly connected to a notch frame (18).

7. A guiding and towing device for rapid removal of downhole hydraulic supports according to claim 6, characterized in that: The notch frame (18) is rotatably connected to the rotating rod frame (19), and the pressure frame (20) is rotatably connected to the outer wall of the rotating rod frame (19).

8. A guiding and towing device for rapid removal of downhole hydraulic supports according to claim 7, characterized in that: The fixed frame (16) is fixedly connected to the side wall of the fixed plate (21), and the pressure frame (20) is rotatably connected to the inner wall of the fixed plate (21).

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