A device for repairing and machining a single hydraulic prop

Abstract

The utility model discloses a device is used in single hydraulic prop maintenance and processing, including base, the top of base places hydraulic cylinder, the output of hydraulic cylinder has and inserts piston rod, the both sides of base all have the pressing plate through the swing joint of pin shaft, and the side of pressing plate away from base is contacted with the surface of hydraulic cylinder, and the front of base is provided with transmission structure, and transmission structure can control pressing plate swing and carry out clamping fixed to hydraulic cylinder, and transmission structure includes the connecting frame of surrounding setting at the outside of hydraulic cylinder, and pressing plate is located the inside of connecting frame, the utility model discloses a single transmission structure setting at the front of base can control the pressing plate swing of both sides simultaneously to the hydraulic cylinder realizes quick, reliable clamping fixed to the problem that fundamentally solved the need of complicated electric equipment or additional clamping step in background art, provides a stable foundation for the subsequent maintenance operation, simplifies the operation step, and improves the initial clamping efficiency.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic prop repair technology, specifically a device for repairing and processing a single hydraulic prop. Background Technology

[0002] Hydraulic prop maintenance is a highly specialized and crucial technical task that directly affects the support safety and production efficiency of underground working faces such as coal mines. The maintenance process requires disassembling the cylinder and piston rod.

[0003] For example, patent application number 202010574115.7 published on the China Patent Network, entitled "A Specialized Machine for Hydraulic Cylinder Repair," includes a bracket. One end of the bracket is equipped with a disassembly clamping device. A first support block is fixed on the bracket near the disassembly clamping device, supporting the cylinder body of the hydraulic cylinder. A second support block is slidably connected to the bracket, and a third support block capable of vertical movement is mounted on the second support block, located on the side of the first support block away from the disassembly clamping device. The disassembly clamping device has a clamping device on one side for clamping the hydraulic cylinder body and a disassembly mechanism on the other side for disassembling the connecting nut on the piston rod. A switching mechanism is located at the bottom of the disassembly clamping device for switching the positions of the two sides. This invention eliminates the safety hazards of hydraulic cylinder swaying or even slipping; improves maintenance efficiency; and has a simplified structure.

[0004] However, the existing equipment uses a rather cumbersome method to separate the cylinder and piston. It requires electric equipment to clamp and fix the cylinder, and also requires additional clamping and connection of the piston rod, which is time-consuming and labor-intensive, affecting maintenance efficiency.

[0005] Therefore, it is necessary to design and modify the equipment used for repairing and processing individual hydraulic supports. Utility Model Content

[0006] To address the problems mentioned in the background art, the purpose of this utility model is to provide a device for repairing and processing a single hydraulic support, which has the advantage of improving separation efficiency. It solves the problem that the existing equipment has a cumbersome method of separating the cylinder and piston, which requires clamping and fixing the cylinder with electric equipment and additional clamping and connecting the piston rod, which is time-consuming, labor-intensive, and affects maintenance efficiency.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a device for repairing and processing a single hydraulic support, including a base; A hydraulic cylinder is placed on the top of the base, and a piston rod is inserted into the output end of the hydraulic cylinder. Both sides of the base are movably connected to pressure plates via pins. The side of the pressure plate away from the base contacts the surface of the hydraulic cylinder. A transmission structure is provided on the front of the base. The transmission structure can control the swing of the pressure plate and clamp and fix the hydraulic cylinder.

[0008] As a preferred embodiment of this utility model, the transmission structure includes a connecting frame surrounding the outside of the hydraulic cylinder, the pressure plate being located inside the connecting frame, a force-bearing plate being fixedly connected to the outside of the pressure plate, and a push rod being fixedly connected inside the connecting frame to the outside of the force-bearing plate. When the connecting frame carries the push rod upward, it can squeeze the force-bearing plate, causing it to swing along with the pressure plate.

[0009] As a preferred embodiment of this invention, the surface of the push rod is covered with a rubber sleeve, the outer surface of which is in contact with the surface of the force-bearing plate, and the rubber sleeve is elastic.

[0010] In a preferred embodiment of this utility model, a bracket is fixedly connected to the front of the base, a screw is movably connected to the inside of the bracket via a bearing, a threaded sleeve is threaded onto the surface of the screw, the back of the threaded sleeve is fixedly connected to the front of the connecting frame, and the top of the screw extends through to the top of the bracket and is fixedly connected to a rotating wheel.

[0011] As a preferred embodiment of this utility model, an extension plate is slidably mounted on the outer side of the pressure plate, and a positioning frame sleeved on the surface of the piston rod is fixedly connected to the side of the extension plate away from the pressure plate.

[0012] As a preferred embodiment of this utility model, a transmission plate is fixedly connected to the outer side of the extension plate. The transmission plate is located at the top of the push rod and can be squeezed and carry the positioning frame to rise synchronously when the push rod rises.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model can synchronously control the swing of the pressure plates on both sides through a single transmission structure set on the front of the base, thereby achieving fast and reliable clamping and fixing of the hydraulic cylinder. It fundamentally solves the problem mentioned in the background technology that requires complex electric equipment or additional clamping steps, provides a stable foundation for subsequent maintenance operations, simplifies the operation steps, and improves the initial clamping efficiency.

[0014] 2. This utility model uses the design of the connecting frame rising to drive the push rod to squeeze the force plate, which transforms the vertical movement of the connecting frame into the inward swinging clamping action of the pressure plate. With one operation, the pressure plates on both sides can be controlled to move simultaneously, ensuring the synchronicity and stability of clamping and avoiding the cylinder body tilting that may be caused by applying force on one side.

[0015] 3. The elastic rubber sleeve fitted on the surface of the push rod can firstly act as a buffer to prevent the metal push rod from colliding hard with the force plate, thus preventing noise or wear. Secondly, the elastic deformation of the rubber sleeve can provide a certain buffer and adaptive clamping force during clamping, making the clamping more gentle and avoiding the indentation or damage that excessive rigid force may cause to the surface of the hydraulic cylinder. At the same time, it can also adapt to the slight deviation of the outer diameter of the hydraulic cylinder.

[0016] 4. This utility model can precisely control the lifting position of the connecting frame by rotating the wheel. The screw mechanism has good self-locking characteristics. Once the rotation stops, the position of the screw sleeve is locked, thus ensuring that the clamping force will not be accidentally loosened during maintenance, which greatly enhances the safety and reliability of the equipment.

[0017] 5. This utility model, through the slidingly installed extension plate and positioning frame, allows the device to clamp the hydraulic cylinder while simultaneously limiting the piston rod, greatly facilitating subsequent maintenance operations by separating the piston rod from the hydraulic cylinder. This prevents the piston rod from swaying freely, making maintenance operations easier and further improving efficiency.

[0018] 6. This utility model sets the transmission plate at the top of the push rod, so that during the upward process, the push rod first performs the function of clamping the hydraulic cylinder, and then immediately pushes the transmission plate to drive the positioning frame to rise and lock the piston rod and push the piston rod to rise and separate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a partial structural diagram of the present invention; Figure 3 This is a top view of the structure of this utility model; Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0020] In the diagram: 1. Base; 2. Hydraulic cylinder; 3. Piston rod; 4. Pressure plate; 5. Connecting frame; 6. Force plate; 7. Push rod; 8. Rubber sleeve; 9. Bracket; 10. Screw; 11. Screw sleeve; 12. Rotary wheel; 13. Extension plate; 14. Positioning frame; 15. Transmission plate. Detailed Implementation

[0021] 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.

[0022] like Figures 1 to 4 As shown, the present invention provides a device for repairing and processing a single hydraulic support, including a base 1; A hydraulic cylinder 2 is placed on the top of the base 1. A piston rod 3 is inserted into the output end of the hydraulic cylinder 2. Both sides of the base 1 are movably connected to pressure plates 4 through pins. The side of the pressure plate 4 away from the base 1 is in contact with the surface of the hydraulic cylinder 2. A transmission structure is provided on the front of the base 1. The transmission structure can control the swing of the pressure plate 4 and clamp and fix the hydraulic cylinder 2.

[0023] refer to Figure 2 The transmission structure includes a connecting frame 5 surrounding the outside of the hydraulic cylinder 2, a pressure plate 4 located inside the connecting frame 5, a force plate 6 fixedly connected to the outside of the pressure plate 4, and a push rod 7 fixedly connected to the inside of the connecting frame 5 located outside the force plate 6. When the connecting frame 5 carries the push rod 7 upward, it can squeeze the force plate 6 to make it swing with the pressure plate 4.

[0024] As a technical optimization of this utility model, the design of the connecting frame 5 rising to drive the push rod 7 to squeeze the force plate 6 transforms the vertical movement of the connecting frame 5 into the inward swinging clamping action of the pressure plate 4. With one operation, the pressure plates 4 on both sides can be controlled to move simultaneously, ensuring the synchronicity and stability of clamping and avoiding the cylinder body tilting that may be caused by applying force on one side.

[0025] refer to Figure 3 The surface of the push rod 7 is fitted with a rubber sleeve 8, the outer surface of the rubber sleeve 8 is in contact with the surface of the force plate 6, and the rubber sleeve 8 is elastic.

[0026] As a technical optimization of this utility model, the elastic rubber sleeve 8 sleeved on the surface of the push rod 7 can firstly serve as a buffer to prevent the metal push rod 7 from colliding hard with the force plate 6, causing noise or wear. Secondly, the elastic deformation of the rubber sleeve 8 can provide a certain buffer and adaptive clamping force during clamping, making the clamping more gentle and avoiding the indentation or damage that excessive rigid force may cause to the surface of the hydraulic cylinder 2. At the same time, it can also adapt to the slight deviation of the outer diameter of the hydraulic cylinder 2.

[0027] refer to Figure 2 A bracket 9 is fixedly connected to the front of the base 1. A screw 10 is movably connected to the inside of the bracket 9 through a bearing. A screw sleeve 11 is threadedly connected to the surface of the screw 10. The back of the screw sleeve 11 is fixedly connected to the front of the connecting frame 5. The top of the screw 10 extends through to the top of the bracket 9 and is fixedly connected to a rotating wheel 12.

[0028] As a technical optimization of this utility model, the lifting position of the connecting frame 5 can be precisely controlled by rotating the wheel 12. The screw 10 mechanism has good self-locking characteristics. Once the rotation stops, the position of the screw sleeve 11 is locked, thereby ensuring that the clamping force will not be accidentally loosened during maintenance, which greatly enhances the safety and reliability of the equipment.

[0029] refer to Figure 1 An extension plate 13 is slidably installed on the outer side of the pressure plate 4, and a positioning frame 14 sleeved on the surface of the piston rod 3 is fixedly connected to the side of the extension plate 13 away from the pressure plate 4.

[0030] As a technical optimization of this utility model, the device can clamp the hydraulic cylinder 2 and limit the piston rod 3 at the same time by using the slidingly installed extension plate 13 and positioning frame 14. This greatly facilitates the subsequent maintenance operation of separating the piston rod 3 from the hydraulic cylinder 2, avoids the piston rod 3 from shaking randomly, makes the maintenance operation easier, and further improves efficiency.

[0031] refer to Figure 1 A transmission plate 15 is fixedly connected to the outer side of the extension plate 13. The transmission plate 15 is located at the top of the push rod 7 and can be squeezed and carry the positioning frame 14 to rise synchronously when the push rod 7 rises.

[0032] As a technical optimization of this utility model, by setting the transmission plate 15 on the top of the push rod 7, the push rod 7 first performs the function of clamping the hydraulic cylinder 2 during the upward process, and then immediately pushes the transmission plate 15 to drive the positioning frame 14 to rise and lock the piston rod 3 and push the piston rod 3 to rise and separate.

[0033] The working principle and usage process of this utility model are as follows: The maintenance personnel first place the hydraulic cylinder 2 on the top of the base 1. Then, by rotating the wheel 12 clockwise, the screw 10 is driven to rotate, which drives the threaded sleeve 11 and the connecting frame 5 fixed on its back to rise synchronously. When the connecting frame 5 rises, the push rod 7 on its inner side moves upward. The push rod 7 first squeezes the force plate 6 fixed on the outside of the pressure plate 4, forcing the pressure plate 4 to swing inward with its pin connection point with the base 1 as the fulcrum, thereby firmly clamping the hydraulic cylinder 2 from both sides. Then, the continuing to rise push rod 7 touches the transmission plate 15 fixed on the outside of the extension plate 13, pushing the extension plate 13 to slide up along the pressure plate 4, driving the positioning frame 14 connected to the extension plate 13 to move upward, so that the positioning frame 14 clamping the piston rod 3 lifts the piston rod 3 upward until the piston rod 3 separates from the hydraulic cylinder 2. Thus, the clamping and fixing of the hydraulic cylinder 2 and the positioning of the piston rod 3 can be completed simultaneously by a single rotation action, and the subsequent separation and maintenance operation can be carried out at the same time.

[0034] In summary, this device for repairing and processing a single hydraulic support can simultaneously control the swing of the pressure plates 4 on both sides through a single transmission structure set on the front of the base 1, thereby achieving fast and reliable clamping and fixing of the hydraulic cylinder 2. It fundamentally solves the problem mentioned in the background technology that requires complex electric equipment or additional clamping steps, provides a stable foundation for subsequent maintenance operations, simplifies the operation steps, and improves the initial clamping efficiency.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for repairing and processing a single hydraulic support, comprising a base (1); Its features are: A hydraulic cylinder (2) is placed on the top of the base (1). A piston rod (3) is inserted into the output end of the hydraulic cylinder (2). Both sides of the base (1) are movably connected to pressure plates (4) through pins. The side of the pressure plate (4) away from the base (1) is in contact with the surface of the hydraulic cylinder (2). A transmission structure is provided on the front of the base (1). The transmission structure can control the pressure plate (4) to swing and clamp and fix the hydraulic cylinder (2).

2. The device for repairing and processing a single hydraulic support according to claim 1, characterized in that: The transmission structure includes a connecting frame (5) surrounding the outside of the hydraulic cylinder (2), the pressure plate (4) is located inside the connecting frame (5), a force plate (6) is fixedly connected to the outside of the pressure plate (4), and a push rod (7) located outside the force plate (6) is fixedly connected inside the connecting frame (5). When the connecting frame (5) carries the push rod (7) to rise, it can squeeze the force plate (6) to make it swing with the pressure plate (4).

3. The device for repairing and processing a single hydraulic prop according to claim 2, characterized in that: The surface of the push rod (7) is covered with a rubber sleeve (8), the outer surface of the rubber sleeve (8) is in contact with the surface of the force plate (6), and the rubber sleeve (8) is elastic.

4. The device for repairing and processing a single hydraulic prop according to claim 3, characterized in that: The base (1) is fixedly connected to the front of a bracket (9), and the inside of the bracket (9) is movably connected to a screw (10) via a bearing. The surface of the screw (10) is threadedly connected to a screw sleeve (11), the back of the screw sleeve (11) is fixedly connected to the front of the connecting frame (5), and the top of the screw (10) extends through to the top of the bracket (9) and is fixedly connected to a wheel (12).

5. The device for repairing and processing a single hydraulic support according to claim 4, characterized in that: An extension plate (13) is slidably installed on the outside of the pressure plate (4), and a positioning frame (14) sleeved on the surface of the piston rod (3) is fixedly connected to the side of the extension plate (13) away from the pressure plate (4).

6. The device for repairing and processing a single hydraulic support according to claim 5, characterized in that: A transmission plate (15) is fixedly connected to the outside of the extension plate (13). The transmission plate (15) is located at the top of the push rod (7) and can be squeezed and carry the positioning frame (14) to rise synchronously when the push rod (7) rises.

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