A hydraulic support telescopic beam leakage-proof gangue dust-proof structure

Abstract

This utility model relates to the field of hydraulic support technology, specifically a hydraulic support telescopic beam anti-leakage and dustproof structure, including a frame, a top beam, and a protective device. The top beam is located at one end of the frame, and the protective device is located on the surface of the frame. The protective device includes a sliding plate, which is slidably connected to the frame. A joint plate is rotatably connected to the surface of the sliding plate. A servo motor is fixedly connected to one end of the frame, and the drive end of the servo motor passes through the frame and is fixedly connected to a swing arm. This utility model, by setting up the protective device, can actively and precisely block the rotation of the top beam. The elasticity of the spring buffers the sliding plate to move forward slowly and smoothly, reducing impact damage to parts. The cooperation of the plug and the plug block can achieve stable limiting after the sliding plate blocks the movement, effectively preventing sand and gravel from falling into the rotation gap and preventing the telescopic beam from getting stuck. When the swing arm drives the joint plate to reset, it can simultaneously pull back the sliding plate without affecting the normal rotation and reset of the top beam, ensuring the smoothness of the top beam's extension and reset actions.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic support technology, and in particular to a hydraulic support telescopic beam anti-leakage and dustproof structure. Background Technology

[0002] The hydraulic support telescopic beam is a core support component of the hydraulic support system in fully mechanized coal mining faces. It is typically a box-type or plate-type welded structure, installed at the front end of the roof beam. Driven by telescopic jacks, it slides back and forth and swings up and down, forming a sliding fit with the roof beam. Its core function is to quickly extend and tilt upwards to support the newly exposed roof after the coal mining machine has cut the coal, effectively preventing roof collapse and spalling, and blocking the intrusion of gangue into the working space. It can withstand the horizontal and lateral forces of the roof, enhancing the support's torsional resistance and maintaining stable beam end spacing, creating a safe working environment for mining equipment and personnel. This component is suitable for harsh underground working conditions, with a compact structure, flexible telescopic movement, and adaptability to uneven roofs. It is also easy to install and maintain, making it a key piece of equipment for ensuring safe and efficient production in fully mechanized mining faces.

[0003] However, when the hydraulic support telescopic beam extends, sand and gravel from the working face can easily fall into the gaps between the telescopic beam and the top beam, side guard plate, and drive mechanism. The accumulation of sand and gravel will fill the gaps and form hard resistance, increasing the frictional resistance of the telescopic beam's movement, causing its telescopic movement to be obstructed or even completely stuck. It is difficult to complete the temporary support of the newly exposed roof in time, which not only affects the coal mining efficiency of the fully mechanized mining face, but may also cause roof collapse and side spalling risks due to the delayed support. Utility Model Content

[0004] The purpose of this utility model is to solve the problem in the existing technology that when the hydraulic support telescopic beam extends, sand and gravel on the working face easily fall into the gaps between the telescopic beam and the top beam, the side guard plate and the drive mechanism. The accumulation of sand and gravel will fill the gaps and form hard resistance, increasing the frictional resistance of the telescopic beam, which will hinder its telescopic movement or even completely jam it, making it difficult to complete the temporary support of the newly exposed roof in time. This not only affects the coal mining efficiency of the fully mechanized mining face, but may also cause roof collapse and side spalling risks due to the delayed support. Therefore, a structure for preventing leakage of gangue and dust is proposed for the hydraulic support telescopic beam.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a hydraulic support telescopic beam anti-leakage and dustproof structure, comprising a frame, a top beam, and a protective device. The top beam is disposed at one end of the frame, and the protective device is disposed on the surface of the frame. The protective device includes a sliding plate, which is slidably connected to the frame. A joint plate is rotatably connected to the surface of the sliding plate. A servo motor is fixedly connected to one end of the frame. The drive end of the servo motor passes through the frame and is fixedly connected to a swing arm. The swing arm is rotatably connected to one end of the joint plate. The sliding plate... The upper surface is fixedly connected with two blocks, which are symmetrically arranged. By setting up a protective device, the rotation of the top beam can be precisely blocked. The spring force buffers the slide plate to move forward slowly and smoothly, reducing impact damage to the parts. The cooperation between the plug and the plug can achieve stable positioning after the slide plate is blocked, effectively preventing sand and gravel from falling into the rotation gap and preventing the telescopic beam from getting stuck. When the swing arm drives the joint plate to reset, it can pull back the slide plate synchronously without affecting the normal rotation and reset of the top beam, ensuring the smoothness of the top beam's extension and reset actions and reducing component wear.

[0006] Preferably, one end of the stop is fixedly connected to a spring, and the end of the spring away from the stop is fixedly connected to the frame. By setting the spring, when the joint plate squeezes the slide, it generates elastic force and squeezes the stop, providing a buffer for the slide to move forward, so that the slide moves slowly and smoothly, reducing the impact damage to the components caused by excessive movement. At the same time, the continuous elastic force of the spring can make the slide fit tightly against the mating surface of the top beam rotation, ensuring the sealing of the shield.

[0007] Preferably, one end of the slide plate is fixedly connected to a rod, and the surface of the top beam is fixedly connected to a block. By setting the rod and the block, the slide plate can be stably limited after blocking the rotation of the top beam, preventing the slide plate from shifting or loosening under the operation of the top beam extension and retraction, underground vibration or external impact, ensuring that the slide plate always fits tightly against the blocking position, and reducing the protective gap caused by the displacement of the slide plate.

[0008] Preferably, the surface of the insert block has a through hole, and the insert rod is inserted into the through hole on the surface of the insert block.

[0009] Preferably, there are two springs arranged symmetrically. By setting the springs, when the joint plate squeezes the slide plate, it generates elastic force and squeezes the stop block, buffering the squeezing force of the joint plate on the slide plate, so that the slide plate moves forward slowly and smoothly, reducing the impact damage to the slide plate, top beam and other related components caused by excessively fast movements. At the same time, the elastic force makes the slide plate fit tightly against the shielding position of the top beam rotation, improving the sealing performance of the shield. Combined with the limiting of the plug rod and plug block, it further ensures the protective effect and prevents sand and gravel from seeping in from the gaps.

[0010] Preferably, protective components are provided on both sides of the frame. The protective components include retaining rings, which are fixedly connected to the frame. A micro motor is fixedly connected to the surface of the retaining rings. By providing protective components, the protection range is further expanded on the basis of the sliding plate blocking the rotation area, the blocking effect on gravel is strengthened, the gravel seeps in from the gaps on both sides, and the risk of telescopic beam jamming and component wear is further reduced.

[0011] Preferably, the drive end of the micro motor is fixedly connected to a clamping plate, and the length of the clamping plate is the same as that of the top beam.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: In this invention, by setting up a protective device, when the top beam extends and retracts, the servo motor drives the swing arm to rotate, the swing arm drives the joint plate, the joint plate squeezes the slide plate, and the spring generates elastic force to squeeze the stop block. The slide plate moves forward slowly and blocks the rotating part of the top beam until the insert rod is inserted into the insert block. When the servo motor drives the swing arm to reset the joint plate, the slide plate is pulled back, and the top beam rotates and resets. By setting up a protective device, the rotating part of the top beam can be accurately blocked actively. The elastic force of the spring makes the slide plate move forward slowly and smoothly, reducing impact damage to the parts. The cooperation between the insert rod and the insert block can achieve stable limiting after the slide plate is blocked, effectively preventing sand and gravel from falling into the rotating gap and preventing the telescopic beam from getting stuck. Moreover, when the swing arm drives the joint plate to reset, it can pull back the slide plate simultaneously without affecting the normal rotation and reset of the top beam, ensuring the smoothness of the extension and retraction and reset actions of the top beam and reducing the wear of the parts.

[0013] In this invention, by setting up a protective component, a micro motor is activated when the sliding plate blocks the rotating part. The micro motor drives the clamping plate to rotate, and the rotating clamping plate blocks the two sides of the top beam to prevent gravel from falling and enhance the protective effect. By setting up the protective component, the protection range is further expanded on the basis of the sliding plate blocking the rotating part, the blocking effect on gravel is strengthened, the gravel seeps in from the gaps on both sides, and the risk of telescopic beam jamming and component wear is further reduced. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of a hydraulic support telescopic beam anti-leakage and dustproof structure is provided for this utility model; Figure 2 This utility model provides a partial structural diagram of a hydraulic support telescopic beam anti-leakage and dustproof structure. Figure 3 This utility model proposes a leak-proof and dust-proof structure for a hydraulic support telescopic beam. Figure 2 A magnified structural diagram at point A; Figure 4 A side view of the structure of a hydraulic support telescopic beam anti-leakage and dustproof structure is provided for this utility model. Figure 5 This utility model presents a schematic diagram of the protective component structure for a hydraulic support telescopic beam anti-leakage and dustproof structure.

[0015] Legend: 1. Frame; 2. Top beam; 3. Protective device; 31. Slide plate; 32. Insert rod; 33. Joint plate; 34. Swing arm; 35. Servo motor; 36. Spring; 37. Protective component; 371. Clamping plate; 372. Micro motor; 373. Clamping ring; 38. Stop block; 39. Inserting block. Detailed Implementation

[0016] Please see Figures 1-5 This utility model provides a technical solution: a hydraulic support telescopic beam anti-leakage and dustproof structure, including a frame 1, a top beam 2 and a protective device 3. The top beam 2 is set at one end of the frame 1, and the protective device 3 is set on the surface of the frame 1.

[0017] In this implementation scheme: the protective device 3 includes a sliding plate 31, which is slidably connected to the frame 1. A joint plate 33 is rotatably connected to the surface of the sliding plate 31. A servo motor 35 is fixedly connected to one end of the frame 1. The drive end of the servo motor 35 passes through the frame 1 and is fixedly connected to a swing arm 34. The swing arm 34 is rotatably connected to one end of the joint plate 33. A stop block 38 is fixedly connected to the upper surface of the sliding plate 31. There are two stops 38, which are symmetrically arranged. By setting the protective device 3, the rotation of the top beam 2 can be accurately blocked. The elasticity of the spring 36 buffers the sliding plate 31 to move forward slowly and smoothly, reducing impact damage to the parts. The cooperation between the insert rod 32 and the insert block 39 can achieve stable positioning after the sliding plate 31 blocks the movement, effectively preventing sand and gravel from falling into the rotation gap and preventing the telescopic beam from getting stuck. When the swing arm 34 drives the joint plate 33 to reset, it can simultaneously pull back the sliding plate 31, without affecting the normal rotation and reset of the top beam 2, ensuring the smoothness of the extension and reset of the top beam 2 and reducing wear on the parts.

[0018] Specifically, a spring 36 is fixedly connected to one end of the stop block 38, and the end of the spring 36 away from the stop block 38 is fixedly connected to the frame 1. By setting the spring 36, when the joint plate 33 presses the slide plate 31, it generates elastic force and presses the stop block 38, providing a buffer for the slide plate 31 to move forward, so that the slide plate 31 moves slowly and smoothly, reducing the impact damage to the components caused by excessive movement. At the same time, the continuous elastic force of the spring 36 can make the slide plate 31 fit tightly against the mating surface of the rotating part of the top beam 2, ensuring the sealing of the shield.

[0019] Specifically, one end of the slide plate 31 is fixedly connected to a rod 32, and the surface of the top beam 2 is fixedly connected to a block 39. By setting the rod 32 and cooperating with the block 39, the slide plate 31 is stably limited after blocking the rotation of the top beam 2, preventing the slide plate 31 from shifting or loosening under the extension and retraction of the top beam 2, underground vibration or external impact, ensuring that the slide plate 31 always fits tightly against the blocking position, and reducing the protective gap caused by the displacement of the slide plate 31.

[0020] Specifically, the surface of the insert block 39 is provided with a through hole, and the insert rod 32 is inserted into the through hole on the surface of the insert block 39.

[0021] Specifically, there are two springs 36, which are symmetrically arranged. By setting the springs 36, when the joint plate 33 squeezes the slide plate 31, it generates elastic force and squeezes the stop block 38, buffering the squeezing force of the joint plate 33 on the slide plate 31, so that the slide plate 31 moves forward slowly and smoothly, reducing the impact damage to the slide plate 31, the top beam 2 and other related components caused by excessively fast movements. At the same time, the elastic force makes the slide plate 31 fit tightly against the shielding position of the rotating part of the top beam 2, improving the sealing performance of the shielding. Together with the limiting of the plug rod 32 and the plug block 39, it further ensures the protective effect and prevents sand and gravel from seeping in from the gaps.

[0022] Specifically, protective components 37 are provided on both sides of the frame 1. The protective components 37 include retaining rings 373, which are fixedly connected to the frame 1. A micro motor 372 is fixedly connected to the surface of the retaining rings 373.

[0023] In this embodiment: by setting up the protective component 37, the protection range is further expanded on the basis of the sliding plate 31 blocking the rotation, the blocking effect on the gravel is strengthened, the gravel seeps in from the gaps on both sides, and the risk of the telescopic beam jamming and component wear is further reduced.

[0024] Specifically, the drive end of the micro motor 372 is fixedly connected to a clamping plate 371, and the length of the clamping plate 371 is the same as that of the top beam 2.

[0025] Working principle: By setting up the protective device 3, when the top beam 2 is extended and retracted, the servo motor 35 drives the swing arm 34 to rotate. The swing arm 34 drives the joint plate 33, the joint plate 33 squeezes the slide plate 31, and the spring 36 generates elastic force to squeeze the stop block 38. The slide plate 31 moves forward slowly and blocks the rotation of the top beam 2 until the insertion rod 32 is inserted into the insertion block 39. When the servo motor 35 drives the swing arm 34 to reset the joint plate 33, the slide plate 31 is pulled back, and the top beam 2 rotates and resets. By setting up the protective device 3, the rotation of the top beam 2 can be accurately blocked. The elasticity of the spring 36 makes the slide plate 31 move forward slowly and smoothly, reducing impact damage to the parts. The cooperation between the insertion rod 32 and the insertion block 39 can realize the stable limit after the slide plate 31 is blocked, effectively preventing sand and gravel from falling into the rotation gap and preventing the telescopic beam from getting stuck. When the swing arm 34 drives the joint plate 33 to reset, it can pull back the slide plate 31 at the same time, without affecting the normal rotation and reset of the top beam 2, ensuring the smoothness of the extension and retraction of the top beam 2 and reducing the wear of the parts. By setting up the protection component 37, when the sliding plate 31 blocks the rotation point, the micro motor 372 is activated. The micro motor 372 drives the clamping plate 371 to rotate. The rotation of the clamping plate 371 blocks the two sides of the top beam 2 to prevent gravel from falling and enhance the protection effect. By setting up the protection component 37, the protection range is further expanded on the basis of the sliding plate 31 blocking the rotation point, the blocking effect on gravel is strengthened, the gravel seeps in from the gaps on both sides, and the risk of telescopic beam jamming and component wear is further reduced.

Claims

1. A hydraulic support telescopic beam leakage-proof gangue dust prevention structure, comprising a rack (1), a top beam (2) and a protection device (3), characterized in that: The top beam (2) is set at one end of the frame (1), and the protective device (3) is set on the surface of the frame (1). The protective device (3) includes a sliding plate (31), which is slidably connected to the frame (1). A joint plate (33) is rotatably connected to the surface of the sliding plate (31). A servo motor (35) is fixedly connected to one end of the frame (1). The drive end of the servo motor (35) passes through the frame (1) and is fixedly connected to a swing arm (34). The swing arm (34) is rotatably connected to one end of the joint plate (33). A stop block (38) is fixedly connected to the upper surface of the sliding plate (31). There are two stop blocks (38), and the two stop blocks (38) are symmetrically arranged.

2. The anti-leakage and dustproof structure for a hydraulic support telescopic beam according to claim 1, characterized in that: One end of the stop (38) is fixedly connected to a spring (36), and the end of the spring (36) away from the stop (38) is fixedly connected to the frame (1).

3. The anti-leakage and dustproof structure for a hydraulic support telescopic beam according to claim 2, characterized in that: One end of the slide plate (31) is fixedly connected to a rod (32), and the surface of the top beam (2) is fixedly connected to a block (39).

4. The anti-leakage and dustproof structure for a hydraulic support telescopic beam according to claim 3, characterized in that: The surface of the insert (39) is provided with a through hole, and the insert rod (32) is inserted into the through hole on the surface of the insert (39).

5. The anti-leakage and dustproof structure for a hydraulic support telescopic beam according to claim 4, characterized in that: There are two springs (36), and the two springs (36) are arranged symmetrically.

6. The anti-leakage and dustproof structure for a hydraulic support telescopic beam according to claim 1, characterized in that: The frame (1) is provided with protective components (37) on both sides. The protective components (37) include retaining rings (373), which are fixedly connected to the frame (1). A micro motor (372) is fixedly connected to the surface of the retaining rings (373).

7. The anti-leakage and dustproof structure for a hydraulic support telescopic beam according to claim 6, characterized in that: The drive end of the micro motor (372) is fixedly connected to a clamping plate (371), and the length of the clamping plate (371) is the same as that of the top beam (2).

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