Special hydraulic maintenance device

By integrating a hydraulic bench vise and a pipe shrinking machine into a maintenance table, the problems of limited functionality and fixed location of existing equipment are solved, enabling rapid relocation and multi-functional maintenance. It adapts to different cylinder shapes, improving the flexibility and ease of operation of the equipment.

CN224027592UActive Publication Date: 2026-03-24CHINESE PEOPLES LIBERATION ARMY UNIT 69243
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-06
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing hydraulic cylinder and oil pipe repair devices are independent and fixed, making it difficult to meet the needs of rapid emergency repairs, and their functions are limited.

Method used

A repair table integrating a hydraulic vise and a pipe shrinking machine was designed. Equipped with casters and an adjustment mechanism, it can flexibly move and adjust the position of the hydraulic cylinder. Powered by an external hydraulic source, it can achieve multi-functional repair.

Benefits of technology

It improves maintenance efficiency, meets emergency maintenance needs, enhances the flexibility and applicability of the equipment, adapts to cylinders of different sizes and shapes, and improves the ease of operation and versatility.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224027592U_ABST
    Figure CN224027592U_ABST
Patent Text Reader

Abstract

The utility model relates to a special hydraulic maintenance device which comprises a maintenance table, a hydraulic bench clamp, a pipe shrinking machine and an adjusting mechanism, the hydraulic bench clamp used for fixing a hydraulic oil cylinder to be maintained is arranged on the maintenance table, the maintenance table is a double-layer table top, the pipe shrinking machine used for maintaining and shaping a hydraulic oil pipe is arranged on the maintenance table, and the adjusting mechanism is arranged on the pipe shrinking machine. The working end of the pipe contracting machine faces the front side of the maintenance table, an adjusting mechanism is arranged on the lower surface of the hydraulic bench clamp and used for driving the hydraulic oil cylinder to be maintained to move up and down or left and right and adjusting the height or the front-back position of the hydraulic oil cylinder to be maintained, and universal wheels are further arranged at the bottom of the maintenance table. According to the utility model, the hydraulic bench clamp for maintaining the hydraulic oil cylinder and the pipe contracting machine for maintaining the hydraulic oil pipe are integrated on the same maintenance table, so that multiple functions are realized, the problem of single function of the traditional device is solved, and the maintenance efficiency is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of hydraulic workpiece repair technology, specifically a special device for hydraulic repair. Background Technology

[0002] Hydraulic technology is used to solve roundness and roughness issues in industrial and civil sectors. It utilizes the pressure of a sealed liquid to transmit force consistently in all directions. Due to its high transmission capacity and ease of configuration, it is widely used in industrial and civil industries. Hydraulic cylinders and hydraulic hoses are two of the most common hydraulic components, and these components have a relatively high probability of damage and frequently require maintenance.

[0003] The existing devices for repairing hydraulic cylinders and oil pipes are two separate devices. Each device can only repair a hydraulic cylinder or oil pipe individually, and both devices are fixed in place, making them difficult to move and unsuitable for situations requiring rapid emergency repairs. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a special device for hydraulic maintenance, addressing the above-mentioned shortcomings.

[0005] To solve the above technical problems, the present invention adopts the following technical solution:

[0006] A hydraulic repair device includes a repair table, a hydraulic vise, a pipe shrinking machine, and an adjustment mechanism. The repair table is equipped with a hydraulic vise for fixing the hydraulic cylinder to be repaired. The repair table has a double-layered tabletop. The pipe shrinking machine is installed on the repair table for shaping and repairing hydraulic oil pipes. The working end of the pipe shrinking machine faces the front of the repair table. An adjustment mechanism is provided on the lower surface of the hydraulic vise. The adjustment mechanism is used to move the hydraulic cylinder to be repaired up and down or left and right to adjust the height or front and back position of the hydraulic cylinder to be repaired. The bottom of the repair table is also equipped with casters.

[0007] Furthermore, the hydraulic vise includes a vise base, a hydraulic cylinder, a connector, a pressure block, a support block, and a support plate. The vise base is mounted on the upper tabletop of the maintenance table. A connecting shaft is horizontally fixed between two parallel vertical support plates of the vise base. A V-shaped connector is sleeved on the outside of the connecting shaft. The hydraulic cylinder is hinged to the rear end of the vise base and is inclined relative to the vise base. The telescopic end of the hydraulic cylinder is rotatably connected to the rear end of the connector. A pressure block is rotatably connected to the lower surface of the front end of the connector. The lower surface of the pressure block is a V-shaped concave surface.

[0008] The vise base is provided with a support plate located below the pressure block. Two support blocks are symmetrically arranged on the support plate. The upper surfaces of the two support blocks are inclined relative to each other to form a dovetail groove. When the hydraulic cylinder pushes the telescopic end forward, it can drive the rear end of the connector to move upward, thereby driving the front end of the connector and the pressure block to move downward, pressing the cylinder to be repaired onto the upper surface of the support block. The vise base is provided with a cavity located below the support plate. An adjustment mechanism is provided inside the cavity.

[0009] Furthermore, the adjustment mechanism includes a hydraulic jack, a slider, a screw, and a handle. A hydraulic jack for raising or lowering the support plate is provided inside the cavity. The telescopic end of the hydraulic jack is fixedly connected to the top of the support plate. A slider that is slidably connected to the vise base is fixed to the bottom of the hydraulic jack. A groove for fitting the slider is provided on the vise base. A screw for moving the slider back and forth along the groove is horizontally rotatably provided inside the cavity. The screw is threadedly connected to the slider. One end of the screw passes through and extends to the front of the vise base and is provided with a handle. When the handle rotates, it can drive the screw to rotate. The rotation of the screw drives the slider and the hydraulic jack to move back and forth. The jack drives the support plate and the support block to move back and forth to adjust the position of the cylinder to be repaired.

[0010] Furthermore, the bottom of the repair table is provided with multiple hydraulic support legs, which are used to fix the repair table.

[0011] Furthermore, the contact surfaces of the pressure block and the support block with the cylinder to be repaired are both provided with felt.

[0012] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages:

[0013] This invention integrates a hydraulic vise for repairing hydraulic cylinders and a pipe shrinking machine for repairing hydraulic pipes onto a single repair table, achieving multi-functionality and solving the problem of limited functionality in traditional devices, thus improving repair efficiency. The device is equipped with casters at the bottom, allowing for quick movement to the repair site to meet emergency repair needs; simultaneously, hydraulic outriggers secure the repair table, ensuring operational stability and balancing mobility and stability. An external mobile hydraulic power source is connected via a control cabinet to power both the vise and the pipe shrinking machine, avoiding the limitations of traditional devices that rely on a fixed hydraulic power source, enhancing the equipment's flexibility and applicability. The hydraulic vise is equipped with a height and forward / backward position adjustment mechanism, hydraulic jacks, screws, and a handle, allowing for flexible adjustment of the position and fixing angle of the cylinder to be repaired, accommodating cylinders of different sizes and shapes, improving operational convenience and versatility.

[0014] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of a hydraulic bench vise;

[0017] Figure 3 This is a three-dimensional structural diagram of the hydraulic vise and adjustment mechanism.

[0018] The attached diagram lists the components represented by each number as follows:

[0019] 1. Repair table; 2. Hydraulic bench vise; 201. Bench vise base; 202. Hydraulic cylinder; 203. Connector; 204. Pressure block; 205. Support block; 206. Support plate; 207. Cavity; 3. Tube shrinking machine; 4. Adjustment mechanism; 401. Hydraulic jack; 402. Sliding block; 403. Screw; 404. Rotary handle; 5. Casters; 6. Hydraulic support feet; 7. Felt. Detailed Implementation

[0020] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] like Figure 1-3 As shown, a hydraulic repair device includes a repair table 1, a hydraulic vise 2, a pipe shrinking machine 3, and an adjustment mechanism 4. The repair table 1 is equipped with a hydraulic vise 2 for fixing the hydraulic cylinder to be repaired. The repair table 1 has a double-layered tabletop. The pipe shrinking machine 3 for repairing and shaping hydraulic oil pipes is installed on the repair table. The working end of the pipe shrinking machine faces the front of the repair table. The lower surface of the hydraulic vise 2 is equipped with an adjustment mechanism 4. The adjustment mechanism 4 is used to drive the hydraulic cylinder to be repaired to move up and down or left and right, adjusting the height or front and back position of the hydraulic cylinder to be repaired. The bottom of the repair table 1 is also equipped with casters 5.

[0023] In one embodiment, the hydraulic vise 2 includes a vise base 201, a hydraulic cylinder 202, a connector 203, a pressure block 204, a support block 205, and a support plate 206. The vise base 201 is mounted on the upper tabletop of the repair table 1. A connecting shaft is horizontally fixed between two parallel vertical support plates of the vise base 201. A V-shaped connector 203 is sleeved on the outer side of the connecting shaft. The hydraulic cylinder 202 is hinged to the rear end of the vise base 201 and is inclined relative to the vise base 201. The telescopic end of the hydraulic cylinder 202 is rotatably connected to the rear end of the connector 203. A pressure block 204 is rotatably connected to the lower surface of the front end of the connector 203. The lower surface of the pressure block 204 is a V-shaped concave surface.

[0024] The vise base 201 is provided with a support plate 206 located below the pressure block 204. Two support blocks 205 are symmetrically arranged on the support plate 206. The upper surfaces of the two support blocks 205 are inclined relative to each other to form a dovetail groove. When the hydraulic cylinder 202 pushes the telescopic end forward, it can drive the rear end of the connector 203 to move upward, thereby driving the front end of the connector 203 and the pressure block 204 to move downward, pressing the cylinder to be repaired onto the upper surface of the support block 205. The vise base 201 is provided with a cavity 207 located below the support plate 206. An adjustment mechanism 4 is provided inside the cavity 207.

[0025] In one embodiment, the adjusting mechanism 4 includes a hydraulic jack 401, a slider 402, a screw 403, and a handle 404. A hydraulic jack 401 is provided inside the cavity 207 for raising or lowering the support plate 206. The telescopic end of the hydraulic jack 401 is fixedly connected to the top of the support plate 206. A slider 402 is fixedly connected to the bottom of the hydraulic jack 401 and slidably connected to the vise base 201. The vise base 201 has a groove for fitting the slider 402. A screw 403 is horizontally rotatably mounted inside the cavity 207 to drive the slider 402 to move back and forth along the slide groove. The screw 403 is threadedly connected to the slider 402. One end of the screw 403 passes through and extends to the front side of the vise base 201 and is provided with a handle 404. When the handle 404 rotates, it can drive the screw 403 to rotate. The rotation of the screw 403 drives the slider 402 and the hydraulic jack 401 to move back and forth. The jack drives the support plate 206 and the support block 205 to move back and forth to adjust the position of the cylinder to be repaired.

[0026] In one embodiment, the bottom of the repair table 1 is provided with a plurality of hydraulic support legs 6, which are used to fix the repair table 1.

[0027] In one embodiment, the contact surfaces of the pressure block 204 and the support block 205 with the cylinder to be repaired are both provided with felt 7.

[0028] In this utility model, the maintenance table 1 is equipped with a hydraulic pipe joint. During maintenance, the hydraulic pipe joint is connected to an external mobile hydraulic source. The maintenance table 1 is equipped with hydraulic start and stop switches for the hydraulic cylinder 202, the pipe shrinking machine 3, and the hydraulic jack 401.

[0029] The working process of this utility model:

[0030] Move the device to the maintenance site using casters 5, and activate hydraulic support legs 6 to secure the maintenance table 1, ensuring equipment stability. Connect an external mobile hydraulic power source to the hydraulic pipe connector on the maintenance table 1 to provide power to the hydraulic vise 2 and the pipe shrinking machine 3. Place the cylinder to be maintained onto the support block 205. Depending on the size of the cylinder, adjust the height of the support block 205 and the cylinder using the hydraulic start / stop switch of the hydraulic jack 401. Then, rotate the screw 403 using the handle 404 to drive the slider 402 to move along the slide groove, adjusting the position of the hydraulic jack 401. This moves the support plate 206 and the support block 205 back and forth, moving the cylinder to the appropriate position. Control the hydraulic start / stop switch of the hydraulic cylinder 202 to drive the connecting piece 203 to rotate, causing the pressure block 204 to press down, firmly fixing the cylinder to the support block 205 via the V-shaped surface. Perform disassembly, seal replacement, and other maintenance work on the fixed cylinder. Place the tubing to be repaired in the working area of ​​the tubing shrinking machine 3. Operate the tubing shrinking machine 3 using its hydraulic start / stop switch to perform flaring, shrinking, and other shaping processes on the tubing. After the repair is completed, release the hydraulic vise 2 from the cylinder, reset the hydraulic jack 401, and return the support plate 206 and support block 205 to their initial positions. Turn off the hydraulic power supply and move the equipment to the storage area or the next repair point using the casters 5.

[0031] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. A special device for hydraulic maintenance, characterized in that, The system includes a repair table (1), a hydraulic vise (2), a pipe shrinking machine (3), and an adjustment mechanism (4). The repair table (1) is equipped with a hydraulic vise (2) for fixing the hydraulic cylinder to be repaired. The repair table (1) has a double-layered tabletop. The repair table is equipped with a pipe shrinking machine (3) for repairing and shaping hydraulic oil pipes. The working end of the pipe shrinking machine faces the front of the repair table. The lower surface of the hydraulic vise (2) is equipped with an adjustment mechanism (4). The adjustment mechanism (4) is used to drive the hydraulic cylinder to be repaired to move up and down or left and right, and adjust the height or front and back position of the hydraulic cylinder to be repaired. The bottom of the repair table (1) is also equipped with casters (5).

2. The hydraulic maintenance device according to claim 1, characterized in that, The hydraulic vise (2) includes a vise base (201), a hydraulic cylinder (202), a connector (203), a pressure block (204), a support block (205), and a support plate (206). The upper tabletop of the repair table (1) is provided with the vise base (201). A connecting shaft is horizontally fixed between two parallel vertical support plates of the vise base (201). A V-shaped connector (203) is sleeved on the outside of the connecting shaft. The rear end of the vise base (201) is hinged to the hydraulic cylinder (202), and the hydraulic cylinder (202) is inclined relative to the vise base (201). The telescopic end of the hydraulic cylinder (202) is rotatably connected to the rear end of the connector (203). The lower surface of the front end of the connector (203) is rotatably connected to the pressure block (204). The lower surface of the pressure block (204) is a V-shaped concave surface. The vise base (201) is provided with a support plate (206) located below the pressure block (204). Two support blocks (205) are symmetrically arranged on the support plate (206). The upper surfaces of the two support blocks (205) are inclined relative to each other to form a dovetail groove. When the hydraulic cylinder (202) pushes the telescopic end forward, it can drive the rear end of the connector (203) to move upward, thereby driving the front end of the connector (203) and the pressure block (204) to move downward, pressing the cylinder to be repaired onto the upper surface of the support block (205). The vise base (201) is provided with a cavity (207) located below the support plate (206). An adjustment mechanism (4) is provided inside the cavity (207).

3. The hydraulic maintenance device according to claim 2, characterized in that, The adjusting mechanism (4) includes a hydraulic jack (401), a slider (402), a screw (403), and a handle (404). A hydraulic jack (401) for raising or lowering the support plate (206) is provided inside the cavity (207). The telescopic end of the hydraulic jack (401) is fixedly connected to the top of the support plate (206). A slider (402) that is slidably connected to the vise base (201) is fixed to the bottom of the hydraulic jack (401). A groove for fitting the slider (402) is provided on the vise base (201). The cavity ( 207) A screw (403) is provided on the inner side for driving the slider (402) to move back and forth along the slide groove. The screw (403) is threadedly connected to the slider (402). One end of the screw (403) passes through and extends to the front side of the vise base (201) and is provided with a handle (404). When the handle (404) rotates, it can drive the screw (403) to rotate. The rotation of the screw (403) drives the slider (402) and the hydraulic jack (401) to move back and forth. The jack drives the support plate (206) and the support block (205) to move back and forth to adjust the position of the cylinder to be repaired.

4. The hydraulic maintenance device according to claim 1, characterized in that, The bottom of the repair table (1) is provided with multiple hydraulic support legs (6), which are used to fix the repair table (1).

5. The hydraulic maintenance device according to claim 2, characterized in that, The contact surfaces of the pressure block (204) and the support block (205) with the cylinder to be repaired are both provided with felt (7).