Pushing mechanism applied to hydraulic support

Abstract

The invention provides a pushing mechanism applied to a hydraulic support, and belongs to the technical field of hydraulic supports, the pushing mechanism comprises a hydraulic support base, a bottom plate is arranged on the lower surface of the hydraulic support base, L-shaped plates are fixedly connected to the left side and the right side of the rear of the bottom plate, and pushing air cylinders are arranged in front of the two L-shaped plates; the two pushing air cylinders are arranged, the circular plate and the square plate are arranged at the telescopic ends of the pushing air cylinders, and meanwhile a reinforcing rod, a strip-shaped plate and an auxiliary pushing mechanism are matched, so that the overall strength and stability of the whole device are enhanced; and in the auxiliary pushing assembly, through the design of a connecting rod, an arc-shaped plate, a movable frame, a limiting plate, a movable sleeve, a sliding block, a movable column and a movable ring, the position and angle of auxiliary pushing can be flexibly adjusted according to the actual situation, the adaptability to different working conditions is improved, and accurate pushing is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of hydraulic supports, and specifically relates to a pushing mechanism applied to a hydraulic support. Background Art

[0002] A hydraulic support is a support device widely used in the fully mechanized coal mining face of coal mines. It is mainly used to support the roof, maintain a safe working space at the working face, and realize the movement of coal mining machinery and equipment. It consists of a top beam, a base, columns, hydraulic cylinders, a control system, etc. Powered by a hydraulic system, it can flexibly adjust the height and supporting force of the support to adapt to different geological conditions and coal mining requirements. The hydraulic support is an indispensable key device in modern coal mining, which not only improves the coal mining efficiency but also provides a reliable guarantee for the safe production of mines.

[0003] In the prior art, when the hydraulic support is working, it needs to be pushed forward and backward. During the pushing process, the working face above the hydraulic support will move, causing the pressure on the working face above the hydraulic support to change. It is difficult for the columns of the hydraulic support to rotate quickly. If the columns of the hydraulic support are not quickly moved in time, it is not conducive to the normal operation of the hydraulic support. Moreover, when the hydraulic support is moving, there may be some large-sized sundries in front. If the sundries in front of the hydraulic support are not cleared in time, it will block the pushing of the hydraulic support, which is not conducive to the normal operation of the hydraulic support, thus reducing the practicability.

[0004] Therefore, we propose a pushing mechanism applied to a hydraulic support to solve the problems encountered above. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems mentioned in the above background art, and to propose a pushing mechanism applied to a hydraulic support.

[0006] The purpose of the present invention can be achieved by the following technical solutions: A pushing mechanism applied to a hydraulic support includes a hydraulic support base. The lower surface of the hydraulic support base is provided with a bottom plate. On the left and right sides behind the bottom plate, L-shaped plates are fixedly connected. In front of the two L-shaped plates, pushing cylinders are provided. In front of the telescopic ends of the two pushing cylinders, circular plates are fixedly connected. On the outer surfaces of the telescopic ends of the two pushing cylinders, square plates are fixedly connected. On the outer sides of the two square plates, reinforcing rods are fixedly connected. On the outer sides of the two reinforcing rods, strip plates are fixedly connected.

[0007] A circular sleeve is fixedly connected to the front of each of the two strip-shaped plates. A driving motor is arranged on the outer side of each of the two circular sleeves. A driving rod is arranged at the power output end of the driving motor. A semi-circular groove is formed in the inner wall of the circular sleeve. A connecting ring is fixedly connected to the outer surface of the driving rod. A first connecting plate is fixedly connected to the outer surface of the connecting ring. A sliding column is fixedly connected to the side of the first connecting plate close to the bottom plate. A second connecting plate is fixedly connected to the front of the first connecting plate. A receiving plate is fixedly connected to the front of the second connecting plate. An auxiliary pushing assembly is arranged at the middle position in front of the receiving plate.

[0008] As a preferred embodiment of the present invention, the auxiliary pushing assembly includes a connecting rod. An arc-shaped plate is fixedly connected to the front of the connecting rod. Two movable frames are fixedly connected to the front of the arc-shaped plate. A limiting plate is arranged inside the two movable frames through a connecting block. Movable sleeves are fixedly connected to the left and right sides of the limiting plate.

[0009] As a preferred embodiment of the present invention, chutes are formed at the middle positions in front of the two movable sleeves. Sliders are slidably connected inside the two chutes. Moving columns are fixedly connected to the fronts of the two sliders. Movable rings are fixedly connected to the fronts of the moving columns.

[0010] As a preferred embodiment of the present invention, extension frames are fixedly connected to the fronts of the two circular sleeves. A reinforcing plate is fixedly connected to the fronts of the two extension frames.

[0011] As a preferred embodiment of the present invention, circular columns are fixedly connected to the left and right sides in front of the reinforcing plate. A collecting sleeve is fixedly connected to the fronts of the two circular columns. A shoveling plate is fixedly connected to the bottom position in front of the collecting sleeve.

[0012] As a preferred embodiment of the present invention, an electric push rod is arranged on the right side of the collecting sleeve. A movable rod is arranged at the power output end of the electric push rod. A pushing plate is fixedly connected to the left side of the movable rod.

[0013] As a preferred embodiment of the present invention, a limiting ring is arranged on the outer surface of the electric push rod. L-shaped fixing frames are fixedly connected to the upper and lower sides of the limiting ring.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] (1) By setting two pushing cylinders, and arranging a circular plate and a square plate at the telescopic ends of the pushing cylinders, and at the same time, cooperating with a reinforcing rod, a strip plate and an auxiliary pushing mechanism, the overall strength and stability of the entire device are enhanced, and the pushing operation of the hydraulic support column can be realized more reliably, improving the work efficiency and reliability. In the auxiliary pushing assembly, the designs of the connecting rod, the arc plate, the movable frame, the limiting plate, as well as the movable sleeve, the slider, the moving column and the movable ring enable the auxiliary pushing to flexibly adjust the position and angle according to the actual situation, improving the adaptability to different working conditions and achieving precise pushing;

[0016] (2) Through the combination of a collecting sleeve, an electric push rod, a movable rod and a push plate, the collecting sleeve can effectively collect materials, etc., and the push plate driven by the electric push rod can push out the collected materials, facilitating cleaning and disposal, reducing the accumulation of sundries in the working environment, improving the cleanliness of the working environment, and facilitating better pushing operation of the hydraulic support. Brief Description of the Drawings

[0017] For the convenience of those skilled in the art to understand, the present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 It is a schematic structural diagram of a pushing mechanism applied to a hydraulic support of the present invention;

[0019] Figure 2 It is a schematic structural diagram of the bottom plate of the present invention;

[0020] Figure 3 It is an internal view of the circular sleeve structure of the present invention;

[0021] Figure 4 It is a schematic structural diagram of the auxiliary pushing assembly of the present invention;

[0022] Figure 5 For the present invention Figure 2 The enlarged view of the structure at A in

[0023] Figure 6 It is a schematic structural diagram of the collecting sleeve of the present invention.

[0024] In the figure: 1. Base of hydraulic support; 2. Floor; 3. L-shaped plate; 4. Push cylinder; 5. Circular plate; 6. Square plate; 7. Reinforcing rod; 8. Strip-shaped plate; 9. Circular sleeve; 10. Driving motor; 11. Driving rod; 12. Semi-circular groove; 13. Connecting ring; 14. First connecting plate; 15. Second connecting plate; 16. Bearing plate; 17. Auxiliary pushing assembly; 18. Connecting rod; 19. Arc-shaped plate; 20. Movable frame; 21. Connecting block; 22. Limiting plate; 23. Movable sleeve; 24. Chute; 25. Slide block; 26. Moving column; 27. Movable ring; 28. Extension frame; 29. Reinforcing plate; 30. Circular column; 31. Collection sleeve; 32. Shovel plate; 33. Electric push rod; 34. Movable rod; 35. Push plate; 36. Limiting ring; 37. L-shaped fixing frame; 38. Sliding column. Detailed implementation mode

[0025] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0026] Embodiment 1:

[0027] Please refer to Figure 1 - Figure 5 As shown, a pushing mechanism applied to a hydraulic support includes a base 1 of the hydraulic support. A floor 2 is provided on the lower surface of the base 1 of the hydraulic support. L-shaped plates 3 are fixedly connected to the left and right sides behind the floor 2. Push cylinders 4 are provided in front of the two L-shaped plates 3. Circular plates 5 are fixedly connected to the front of the telescopic ends of the two push cylinders 4. Square plates 6 are fixedly connected to the outer surfaces of the telescopic ends of the two push cylinders 4. Reinforcing rods 7 are fixedly connected to the outer sides of the two square plates 6. Strip-shaped plates 8 are fixedly connected to the outer sides of the two reinforcing rods 7;

[0028] A circular sleeve 9 is fixedly connected to the front of each of the two strip plates 8. A driving motor 10 is arranged on the outer side of each of the two circular sleeves 9. A driving rod 11 is arranged at the power output end of the driving motor 10. A semi-circular groove 12 is formed in the inner wall of the circular sleeve 9. A connecting ring 13 is fixedly connected to the outer surface of the driving rod 11. A first connecting plate 14 is fixedly connected to the outer surface of the connecting ring 13. A sliding column 38 is fixedly connected to the side of the first connecting plate 14 close to the bottom plate 2. A second connecting plate 15 is fixedly connected to the front of the first connecting plate 14. A receiving plate 16 is fixedly connected to the front of the second connecting plate 15. An auxiliary pushing component 17 is arranged at the middle position in front of the receiving plate 16. The auxiliary pushing component 17 includes a connecting rod 18. An arc-shaped plate 19 is fixedly connected to the front of the connecting rod 18. Two movable frames 20 are fixedly connected to the front of the arc-shaped plate 19. A limiting plate 22 is arranged inside the two movable frames 20 through a connecting block 21. Movable sleeves 23 are fixedly connected to both the left and right sides of the limiting plate 22. Among them, the movable frame 20 provides a space for the limiting plate 22 to move within a certain range, enabling the limiting plate 22 to adjust its position and angle according to the actual working conditions, so as to better control and adjust the pushing process;

[0029] Chute grooves 24 are formed at the middle positions in front of the two movable sleeves 23. Sliding blocks 25 are slidably connected inside the two chute grooves 24. Moving columns 26 are fixedly connected to the fronts of the two sliding blocks 25. Movable rings 27 are fixedly connected to the fronts of the moving columns 26. Among them, the connecting rod 18 plays a role in transmitting force and transmits the force to the arc-shaped plate 19. On the one hand, the arc-shaped plate 19 can change the direction of force transmission to make it more in line with the working requirements of the pushing mechanism. On the other hand, the arc-shaped structure can, to a certain extent, adapt to different angles and position changes during the working process, increasing the flexibility and adaptability of the structure;

[0030] In the prior art, when a hydraulic support is working, it needs to be pushed forward and backward. During the pushing process, the working face above the hydraulic support will move, causing the pressure on the working face above the hydraulic support to change. It is difficult for the columns of the hydraulic support to rotate quickly. If the columns of the hydraulic support are not quickly moved in a timely manner, it is not conducive to the normal operation of the hydraulic support;

[0031] The operator can start the pushing cylinder 4. The telescopic end of the pushing cylinder 4 extends forward, pushing the circular plate 5 and the components connected thereto forward, thereby driving the entire pushing mechanism to move forward and realizing the initial pushing action of the hydraulic support. At the same time, the square plate 6, the reinforcing rod 7, and the strip plate 8 play a role in strengthening the structure, ensuring the stability of the pushing process. The driving motor 10 is started, and the driving rod 11 at the power output end thereof starts to rotate. The connecting ring 13 on the outer surface of the driving rod 11 rotates together with the driving rod 11. The connecting ring 13 drives the first connecting plate 14 to move. Since a semi-circular groove 12 is provided on the inner wall of the circular sleeve 9, the sliding column 38 on the first connecting plate 14 can slide in the semi-circular groove 12, enabling the first connecting plate 14 to perform a circular motion driven by the driving rod 11. Furthermore, the second connecting plate 15 drives the receiving plate 16 to perform corresponding movements, which can adjust and control the pushing direction and force to a certain extent. When the receiving plate 16 moves, the auxiliary pushing assembly 17 moves accordingly. The structure composed of the connecting rod 18, the arc plate 19, the movable frame 20, the limiting plate 22, and the movable sleeve 23 plays a role in auxiliary support and guiding. When encountering different terrains or resistances, the slider 25 in the movable sleeve 23 can slide in the chute 24, driving the moving column 26 and the movable ring 27 to move, enabling the auxiliary pushing assembly 17 to perform certain adaptive adjustments on the columns of the hydraulic support according to the actual situation and better assisting the pushing mechanism to work.

[0032] Embodiment 2:

[0033] Please refer to Figure 6 As shown, extension frames 28 are fixedly connected to the front of both circular sleeves 9. A reinforcing plate 29 is fixedly connected to the front of the two extension frames 28. Among them, the reinforcing plate 29 moves driven by the two extension frames 28. The main function of the reinforcing plate 29 is to enhance the stability and strength of the structure, ensure that it can withstand greater forces during the pushing process, and evenly distribute the forces to the subsequent connected components;

[0034] Circular columns 30 are fixedly connected to the left and right sides in front of the reinforcing plate 29. A collecting sleeve 31 is fixedly connected to the front of the two circular columns 30. A scraping plate 32 is fixedly connected to the bottom position in front of the collecting sleeve 31. Among them, the scraping plate 32 is fixed at the bottom front position of the collecting sleeve 31. During the pushing process, the scraping plate 32 will first come into contact with materials such as coal, gangue, and other sundries on the ground or the working surface. The function of the scraping plate 32 is to shovel up the materials and guide them into the collecting sleeve 31, realizing the function of material collection. As the pushing mechanism advances, the collecting sleeve 31 continuously collects materials;

[0035] On the right side of the collection sleeve 31, there is an electric push rod 33. The power output end of the electric push rod 33 is provided with a movable rod 34. On the left side of the movable rod 34, there is a push plate 35 fixedly connected. Among them, since the push plate 35 is fixedly connected to the left side of the movable rod 34, the movement of the movable rod 34 will drive the push plate 35 to move together. The push plate 35 pushes the materials in the collection sleeve 31 out, completing the cleaning and discharging work of the materials;

[0036] On the outer surface of the electric push rod 33, there is a limit ring 36. On the upper and lower sides of the limit ring 36, there are L-shaped fixing frames 37 fixedly connected. Among them, the L-shaped fixing frames 37 are fixed on the upper and lower sides of the limit ring 36. Its function is to stably fix the limit ring 36 at a suitable position of the hydraulic support, ensuring that the limit ring 36 can effectively limit the electric push rod 33. At the same time, the L-shaped fixing frames 37 also enhance the stability of the entire structure, preventing it from shaking or displacing during the working process;

[0037] In the prior art, when the hydraulic support is moving, there may be some relatively large sundries in front. If the gravel in front of the hydraulic support is not cleaned in time, it will block the pushing of the hydraulic support, which is not conducive to the normal operation of the hydraulic support, thus reducing its practicability;

[0038] As the pushing mechanism advances, the shovel plate 32 at the front bottom of the collection sleeve 31 will shovel up the sundries in front and collect them into the collection sleeve 31. The extension frame 28 and the reinforcement plate 29 play a role in fixing and strengthening the collection sleeve 31, ensuring its stability during the process of collecting sundries. When a certain amount of sundries are collected in the collection sleeve 31, the electric push rod 33 is started. The power output end of the electric push rod 33 drives the movable rod 34 to move. The movable rod 34 pushes the push plate 35 to move leftward, pushing the sundries in the collection sleeve 31 out, realizing the cleaning function of the sundries. The limit ring 36 and the L-shaped fixing frames 37 play a role in limiting and fixing the electric push rod 33, ensuring the stability and reliability of the operation of the electric push rod 33.

[0039] The specific working process of the present invention is as follows:

[0040] When the hydraulic support needs to perform a pushing operation, control the two pushing cylinders 4 to start. Since the pushing cylinders 4 are installed in front of the L-shaped plate 3, and the L-shaped plate 3 is fixed on both sides behind the bottom plate 2, the pushing cylinders 4 perform telescopic movements with the L-shaped plate 3 as the support point. The telescopic end of the pushing cylinder 4 extends forward, driving the circular plate 5 fixedly connected thereto to move forward. At the same time, the square plate 6 on the outer surface of the telescopic end also moves accordingly. The square plate 6 drives the strip plate 8 to move forward through the reinforcing rod 7. The movement of the strip plate 8 provides power and displacement basis for the actions of subsequent components. The strip plate 8 drives the circular sleeve 9 to move forward. When additional driving is required during the pushing process, start the driving motor 10. The power output end of the driving motor 10 drives the driving rod 11 to rotate. The connecting ring 13 on the outer surface of the driving rod 11 rotates accordingly. The first connecting plate 14 on the connecting ring 13 also starts to rotate. The sliding column 38 on the first connecting plate 14 slides in the semi-circular groove 12 on the inner wall of the circular sleeve 9, playing a role in guiding and stabilizing the rotation of the first connecting plate 14. The rotation of the first connecting plate 14 drives the second connecting plate 15 to rotate, and further drives the receiving plate 16 to move. The auxiliary pushing assembly 17 in front of the receiving plate 16 will also perform corresponding actions with the movement of the receiving plate 16. The connecting rod 18 of the auxiliary pushing assembly 17 moves with the movement of the receiving plate 16, driving the arc plate 19 to move. The arc plate 19 drives the two movable frames 20 to move. The limiting plates 22 arranged inside the movable frames 20 through the connecting blocks 21 also move accordingly. The movable sleeves 23 on both the left and right sides of the limiting plates 22 move synchronously. When the slider 25 in the chute 24 in front of the movable sleeve 23 is subjected to external forces such as collision with other components or relative movement, the slider 25 will slide in the chute 24, driving the moving column 26 to move. The moving column 26 then drives the movable ring 27 to move, thereby realizing the fine-tuning function of the auxiliary push, making the pushing process more stable and accurate. When the circular sleeve 9 moves forward;

[0041] Drive the reinforcing plate 29 to move forward through the extension frame 28. The reinforcing plate 29 drives the collecting sleeve 31 to move forward through the circular column 30. The shovel plate 32 at the front bottom of the collecting sleeve 31 will shovel up the materials on the working surface such as coal, gangue, etc. and collect them into the collecting sleeve 31. When a certain amount of materials is collected in the collecting sleeve 31, start the electric push rod 33. The power output end of the electric push rod 33 pushes the movable rod 34. The movable rod 34 drives the push plate 35 on the left side to push out the materials in the collecting sleeve 31, completing the cleaning work of the materials. During the working process of the electric push rod 33, the limiting ring 36 limits the movement range of the electric push rod 33. The L-shaped fixing frame 37 stably fixes the limiting ring 36 in a suitable position, ensuring the safety and stability of the electric push rod 33 during operation;

[0042] When the pushing operation is completed, control the telescopic end of the pushing cylinder 4 to retract, driving each component back to the initial position to prepare for the next pushing operation. The driving motor 10 and the electric push rod 33 stop working.

[0043] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only the specific embodiments. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A pushing mechanism applied to a hydraulic support, comprising a hydraulic support base (1), characterized in that, The lower surface of the hydraulic support base (1) is provided with a bottom plate (2). On the left and right sides behind the bottom plate (2), L-shaped plates (3) are fixedly connected. In front of the two L-shaped plates (3), push cylinders (4) are arranged. In front of the telescopic ends of the two push cylinders (4), circular plates (5) are fixedly connected. On the outer surfaces of the telescopic ends of the two push cylinders (4), square plates (6) are fixedly connected. On the outer sides of the two square plates (6), reinforcing rods (7) are fixedly connected. On the outer sides of the two reinforcing rods (7), strip plates (8) are fixedly connected; In front of the two strip plates (8), circular sleeves (9) are fixedly connected. On the outer sides of the two circular sleeves (9), drive motors (10) are arranged. At the power output end of the drive motor (10), a drive rod (11) is arranged. A semi-circular groove (12) is formed in the inner wall of the circular sleeve (9). On the outer surface of the drive rod (11), a connecting ring (13) is fixedly connected. On the outer surface of the connecting ring (13), a first connecting plate (14) is fixedly connected. On the side of the first connecting plate (14) close to the bottom plate (2), a sliding column (38) is fixedly connected. In front of the first connecting plate (14), a second connecting plate (15) is fixedly connected. In front of the second connecting plate (15), a receiving plate (16) is fixedly connected. In the middle position in front of the receiving plate (16), an auxiliary pushing assembly (17) is arranged.

2. The push mechanism applied to a hydraulic support according to claim 1, characterized in that, The auxiliary pushing assembly (17) includes a connecting rod (18). In front of the connecting rod (18), an arc-shaped plate (19) is fixedly connected. In front of the arc-shaped plate (19), two movable frames (20) are fixedly connected. Inside the two movable frames (20), a limiting plate (22) is arranged through a connecting block (21). On the left and right sides of the limiting plate (22), movable sleeves (23) are fixedly connected.

3. The push - pull mechanism applied to a hydraulic support according to claim 2, characterized in that, In the middle positions in front of the two movable sleeves (23), chutes (24) are formed. Inside the two chutes (24), sliders (25) are slidably connected. In front of the two sliders (25), moving columns (26) are fixedly connected. In front of the moving columns (26), movable rings (27) are fixedly connected.

4. The push - pull mechanism applied to a hydraulic support according to claim 1, characterized in that, In front of the two circular sleeves (9), extension frames (28) are fixedly connected. In front of the two extension frames (28), reinforcing plates (29) are fixedly connected.

5. The pushing mechanism applied to a hydraulic support according to claim 4, characterized in that, On the left and right sides in front of the reinforcing plate (29), circular columns (30) are fixedly connected. In front of the two circular columns (30), a collecting sleeve (31) is fixedly connected. At the bottom position in front of the collecting sleeve (31), a shovel plate (32) is fixedly connected.

6. The push - pull mechanism applied to a hydraulic support according to claim 5, characterized in that, On the right side of the collecting sleeve (31), an electric push rod (33) is arranged. At the power output end of the electric push rod (33), a movable rod (34) is arranged. On the left side of the movable rod (34), a push plate (35) is fixedly connected.

7. The pushing mechanism applied to a hydraulic support according to claim 6, characterized in that, On the outer surface of the electric push rod (33), a limiting ring (36) is arranged. On the upper and lower sides of the limiting ring (36), L-shaped fixing frames (37) are fixedly connected.

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