Auxiliary device for disassembling and assembling hydraulic tensioner

Abstract

The utility model belongs to the technical field of hydraulic stretcher disassembly and assembly assisting, and particularly relates to a hydraulic stretcher disassembly and assembly assisting device which comprises a cart, a supporting stand column, an installation support and a hydraulic stretcher body. The supporting stand column is installed on the upper surface of the cart, and one side of the installation support is connected with an adjusting assembly connected with the supporting stand column. A hydraulic stretcher main body is mounted on the upper surface of the mounting bracket; a connecting frame is connected to the lower surface of the mounting support, a rotating frame is arranged on the inner wall of the connecting frame, and a telescopic rod is mounted on the inner wall of the rotating frame. When the telescopic rod extends, the hexagonal column is driven to be inserted into a stirring hole of the hexagonal nut, the second driving motor operates to drive the driving fluted disc to rotate, and the driving fluted disc rotates to drive the rotating rod to rotate through the driven fluted disc and drive the hexagonal column to rotate through the rotating frame and the telescopic rod. Therefore, the hexagon nut shifting hole is driven to rotate through rotation of the hexagon column, and automatic operation can be achieved so that the hydraulic tensioner body can fasten the bottom-mounted large nut.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic tensioner disassembly and assembly auxiliary technology, specifically relating to a hydraulic tensioner disassembly and assembly auxiliary device. Background Technology

[0002] The hydraulic tensioner is a globally advanced bolt pre-tightening and loosening tool, characterized by its simple operation, ease of use, and high safety, and is widely used in the pre-tightening of large-diameter bolts. The hydraulic tensioner mainly consists of a master cylinder, a slave cylinder, hydraulic oil, and a control system. The master cylinder generates the tensile force, while the slave cylinder transmits and locks this force. Hydraulic oil serves as the power transmission medium, and the control system regulates and monitors the tensioner's operating status. The hydraulic tensioner utilizes hydraulic power provided by an ultra-high-pressure pump to apply external force to the bolt through the hydraulic cylinder, causing the bolt to elongate within its elastic deformation range, thereby loosening or tightening the nut. When the bolt is stretched, the nut separates from the contact surface of the device, facilitating disassembly or pre-tightening.

[0003] Hydraulic tensioner assembly / disassembly auxiliary devices are essential tools specifically designed for the assembly / disassembly of large, bottom-mounted nuts. Their core purpose is to significantly improve the efficiency of hydraulic tensioner assembly / disassembly of these nuts, drastically reduce operator workload, eliminate the need to lift the hydraulic tensioner when handling large, bottom-mounted nuts, and ensure overall safety throughout the operation. Through ingenious structural design and user-friendly functionality, these auxiliary devices simplify, speed up, and increase the efficiency of the previously tedious and laborious process of assembling and disassembling hydraulic tensioners, thereby greatly improving work efficiency and quality while providing operators with a safer and more comfortable working environment.

[0004] In practical applications, one of the core operating steps of existing hydraulic tensioner assembly and disassembly auxiliary devices is to rotate the hexagonal nut to turn the hole. This action is crucial for pre-tightening the bolt, thus laying the foundation for the smooth disassembly of the nut. This step mainly relies on manual operation by workers. When facing the disassembly of large bottom-mounted nuts, the difficulty of operation increases significantly.

[0005] Specifically, because the hexagonal nut turning hole of the bottom-mounted large nut is set downwards, the staff has to adopt a downward or upward posture when manually adjusting and turning it. This not only greatly limits the space and angle of operation, but also makes it difficult to effectively exert hand strength. Utility Model Content

[0006] The purpose of this utility model is to provide an auxiliary device for disassembling and assembling a hydraulic tensioner, which aims to solve the problem that in the prior art, the hexagonal nut turning hole of the bottom-mounted large nut is set downward, and when the operator manually adjusts and rotates it, he has to adopt a downward or upward posture, which not only greatly limits the operating space and angle, but also makes it difficult to effectively exert hand strength.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic tensioner assembly / disassembly auxiliary device, comprising a trolley, a support column, a mounting bracket, and a hydraulic tensioner body. The support column is mounted on the upper surface of the trolley. An adjustment component connected to the support column is connected to one side of the mounting bracket. The hydraulic tensioner body is mounted on the upper surface of the mounting bracket. A connecting frame is connected to the lower surface of the mounting bracket. A rotating frame is provided on the inner wall of the connecting frame. A telescopic rod is mounted on the inner wall of the rotating frame. A hexagonal column connected to the movable end of the telescopic rod is provided directly below the hexagonal nut actuation hole of the hydraulic tensioner body, so that the telescopic rod drives the hexagonal column to move axially.

[0008] As a preferred embodiment of the hydraulic tensioner assembly and disassembly auxiliary device of this utility model, a rotating rod connected to the bottom of the rotating frame passes through the interior of the connecting frame, and a bearing ring fitted and mounted on the surface of the rotating rod is sleeved on the surface of the connecting frame.

[0009] As a preferred embodiment of the hydraulic tensioner assembly and disassembly auxiliary device of this utility model, the surface of the rotating rod is connected to a driven gear plate, the side surface of the connecting frame is equipped with a second drive motor, and the output end of the second drive motor is connected to a drive gear plate that meshes with the driven gear plate.

[0010] As a preferred embodiment of the hydraulic tensioner disassembly and assembly auxiliary device of this utility model, the adjustment component includes a guide rail, a guide sleeve, a threaded sleeve, a threaded rod, a bearing seat, a driven bevel gear, a first drive motor, and a driving bevel gear. The side surface of the support column is connected to the guide rail, and the surface of the guide rail is fitted with a guide sleeve connected to the side surface of the mounting bracket.

[0011] As a preferred embodiment of the hydraulic tensioner disassembly and assembly auxiliary device of this utility model, the side surface of the guide sleeve is connected to a threaded sleeve, and a matching threaded rod passes through the inside of the threaded sleeve, the threaded rod being threadedly connected to the threaded sleeve.

[0012] As a preferred embodiment of the hydraulic tensioner disassembly and assembly auxiliary device of this utility model, the threaded rod is connected through a bearing seat connected to the support column, and the end of the threaded rod is connected to a driven bevel gear.

[0013] As a preferred embodiment of the hydraulic tensioner assembly and disassembly auxiliary device of this utility model, a first drive motor is mounted on the surface of the trolley, and the output end of the first drive motor is connected to a driving bevel gear that meshes with the driven bevel gear.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, when the telescopic rod extends, it drives the hexagonal column to insert into the hexagonal nut's actuating hole. When the second drive motor runs, it drives the active gear disc to rotate. The rotation of the active gear disc drives the rotating rod to rotate through the driven gear disc. The rotation of the rotating rod drives the hexagonal column to rotate through the rotating frame and the telescopic rod. Thus, the rotation of the hexagonal column drives the hexagonal nut's actuating hole to rotate, thereby realizing automatic operation to fasten the hydraulic tensioner body to the bottom-mounted large nut, improving the convenience and practicality of the device.

[0016] In this invention, the first drive motor drives the active bevel gear during operation. When the active bevel gear rotates, it drives the threaded rod to rotate through the driven bevel gear. The rotation of the threaded rod drives the guide sleeve to slide upward through the threaded sleeve. The upward sliding of the guide sleeve drives the hydraulic tensioner body to be sleeved on the surface of the bottom-mounted large nut through the mounting bracket. This allows it to easily adapt to bottom-mounted large nuts of different heights, improving the applicability of the device. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a side view of the structure of this utility model;

[0020] Figure 3 This is an exploded view of the mounting bracket connection structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the main body adjustment and connection structure of the hydraulic tensioner of this utility model;

[0022] Figure 5 This is a cross-sectional view of the hexagonal prism connection structure of this utility model.

[0023] In the diagram: 1. Trolley; 2. Support column; 3. Mounting bracket; 4. Adjustment assembly; 401. Guide rail; 402. Guide sleeve; 403. Threaded sleeve; 404. Threaded rod; 405. Bearing seat; 406. Driven bevel gear; 407. First drive motor; 408. Driven bevel gear; 5. Main body of hydraulic tensioner; 6. Connecting frame; 7. Bearing ring; 8. Rotating rod; 9. Rotating frame; 10. Telescopic rod; 11. Hexagonal column; 12. Driven gear plate; 13. Second drive motor; 14. Driven gear plate. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-5 This utility model provides the following technical solution: A hydraulic tensioner assembly and disassembly auxiliary device, including a trolley 1, a support column 2, a mounting bracket 3, and a hydraulic tensioner body 5. The support column 2 is mounted on the upper surface of the trolley 1. An adjustment component 4 connected to the support column 2 is connected to one side of the mounting bracket 3. The hydraulic tensioner body 5 is mounted on the upper surface of the mounting bracket 3. A connecting frame 6 is connected to the lower surface of the mounting bracket 3. A rotating frame 9 is provided on the inner wall of the connecting frame 6. A telescopic rod 10 is mounted on the inner wall of the rotating frame 9. A hexagonal column 11 connected to the movable end of the telescopic rod 10 is provided directly below the hexagonal nut actuation hole of the hydraulic tensioner body 5, so that the telescopic rod 10 drives the hexagonal column 11 to move axially.

[0026] The hydraulic tensioner assembly and disassembly auxiliary device is first used to drive the hydraulic tensioner body 5 to fit onto the surface of the bottom-mounted large nut. Then, the hexagonal nut turning hole of the hydraulic tensioner body 5 can be rotated to pre-tighten the bolt through the hexagonal nut turning hole. Then, the hydraulic cylinder is used to directly apply external force to the bolt, so that the bolt is stretched within its elastic deformation range, thereby loosening the nut.

[0027] Preferably, the interior of the connecting frame 6 has a rotating rod 8 connected to the bottom of the rotating frame 9, and a bearing ring 7 fitted onto the surface of the rotating rod 8 is fitted onto the surface of the connecting frame 6.

[0028] In practical use, when the rotating rod 8 is subjected to a force, it can rotate inside the bearing ring 7, and the rotation of the rotating rod 8 can drive the rotating frame 9 to rotate.

[0029] Preferably, a driven gear 12 is connected to the surface of the rotating rod 8, a second drive motor 13 is mounted on the side surface of the connecting frame 6, and the output end of the second drive motor 13 is connected to a drive gear 14 that meshes with the driven gear 12.

[0030] In practical use, when the second drive motor 13 is running, it can drive the active gear disk 14 to rotate. The rotation of the active gear disk 14 can drive the driven gear disk 12 to rotate through the meshing structure. The rotation of the driven gear disk 12 can drive the rotating rod 8 to rotate, thus realizing the transmission between the second drive motor 13 and the rotating rod 8.

[0031] Preferably, the adjustment assembly 4 includes a guide rail 401, a guide sleeve 402, a threaded sleeve 403, a threaded rod 404, a bearing seat 405, a driven bevel gear 406, a first drive motor 407, and a driving bevel gear 408. The side surface of the support column 2 is connected to the guide rail 401, and the surface of the guide rail 401 is fitted with a guide sleeve 402 connected to the side surface of the mounting bracket 3.

[0032] In practical use, when the guide sleeve 402 is subjected to force, it can slide on the surface of the guide rail 401, thereby driving the mounting bracket 3 to move longitudinally through the guide sleeve 402, thereby adjusting the height of the hydraulic tensioner body 5.

[0033] Preferably, the side surface of the guide sleeve 402 is connected to a threaded sleeve 403, and a matching threaded rod 404 passes through the inside of the threaded sleeve 403, with the threaded rod 404 threadedly connected to the threaded sleeve 403.

[0034] In practical use, when the threaded rod 404 rotates, it can drive the threaded sleeve 403 to move longitudinally through the meshing structure, and the longitudinal movement of the threaded sleeve 403 can drive the guide sleeve 402 to move longitudinally.

[0035] Preferably, the threaded rod 404 is connected through the bearing seat 405 connected to the support column 2, and the end of the threaded rod 404 is connected to the driven bevel gear 406.

[0036] Preferably, a first drive motor 407 is mounted on the surface of the trolley 1, and the output end of the first drive motor 407 is connected to a drive bevel gear 408 that meshes with the driven bevel gear 406.

[0037] In practical use, when the first drive motor 407 is running, it can drive the active bevel gear 408 to rotate. The rotation of the active bevel gear 408 can drive the driven bevel gear 406 to rotate through the meshing structure. The rotation of the driven bevel gear 406 can drive the threaded rod 404 to rotate, thus realizing the transmission between the first drive motor 407 and the threaded rod 404.

[0038] Working principle: When using this device, push the trolley 1 to move the hydraulic tensioner body 5 to directly below the bottom-mounted large nut through its upper components. Then, the first drive motor 407 can be run. When the first drive motor 407 runs, it can drive the active bevel gear 408. When the active bevel gear 408 rotates, it can drive the threaded rod 404 to rotate through the driven bevel gear 406. When the threaded rod 404 rotates, it can drive the threaded sleeve 403 to move upward. The upward movement of the threaded sleeve 403 can drive the guide sleeve 402 to slide upward on the surface of the guide rail 401. The upward sliding of the guide sleeve 402 can drive the hydraulic tensioner body 5 to be sleeved on the surface of the bottom-mounted large nut through the mounting bracket 3.

[0039] Next, the telescopic rod 10 can be operated. When the telescopic rod 10 moves, it can drive the hexagonal column 11 to move upward and insert into the hexagonal nut actuation hole. Then, the second drive motor 13 is operated. When the second drive motor 13 runs, it can drive the active gear plate 14 to rotate. The rotation of the active gear plate 14 can drive the driven gear plate 12 to rotate. The rotation of the driven gear plate 12 can drive the rotating rod 8 to rotate. The rotation of the rotating rod 8 can drive the rotating frame 9 to rotate. When the rotating frame 9 rotates, it drives the hexagonal column 11 to rotate through the telescopic rod 10. Thus, the rotation of the hexagonal column 11 drives the hexagonal nut actuation hole to rotate, thereby realizing the fastening of the hydraulic tensioner body 5 to the bottom-mounted large nut.

[0040] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hydraulic tensioner assembly / disassembly auxiliary device, comprising a trolley (1), a support column (2), a mounting bracket (3), and a hydraulic tensioner body (5), characterized in that: The upper surface of the trolley (1) is equipped with a support column (2), and one side of the mounting bracket (3) is connected to an adjustment component (4) that is connected to the support column (2). The upper surface of the mounting bracket (3) is equipped with a hydraulic tensioner body (5). The lower surface of the mounting bracket (3) is connected to a connecting frame (6), and the inner wall of the connecting frame (6) is provided with a rotating frame (9). The inner wall of the rotating frame (9) is provided with a telescopic rod (10). The hexagonal column (11) connected to the movable end of the telescopic rod (10) is provided directly below the hexagonal nut actuation hole of the hydraulic tensioner body (5), so that the telescopic rod (10) drives the hexagonal column (11) to move axially.

2. The hydraulic tensioner disassembly and assembly auxiliary device according to claim 1, characterized in that: The interior of the connecting frame (6) has a rotating rod (8) connected to the bottom of the rotating frame (9), and a bearing ring (7) fitted onto the surface of the rotating rod (8) is fitted onto the surface of the connecting frame (6).

3. The hydraulic tensioner disassembly and assembly auxiliary device according to claim 2, characterized in that: The rotating rod (8) is connected to a driven gear plate (12), and a second drive motor (13) is installed on the side surface of the connecting frame (6). The output end of the second drive motor (13) is connected to an active gear plate (14) that meshes with the driven gear plate (12).

4. The hydraulic tensioner disassembly and assembly auxiliary device according to claim 1, characterized in that: The adjustment assembly (4) includes a guide rail (401), a guide sleeve (402), a threaded sleeve (403), a threaded rod (404), a bearing seat (405), a driven bevel gear (406), a first drive motor (407), and a driving bevel gear (408). The side surface of the support column (2) is connected to the guide rail (401), and the surface of the guide rail (401) is fitted with a guide sleeve (402) connected to the side surface of the mounting bracket (3).

5. The hydraulic tensioner disassembly and assembly auxiliary device according to claim 4, characterized in that: The guide sleeve (402) has a threaded sleeve (403) connected to its side surface. A matching threaded rod (404) passes through the inside of the threaded sleeve (403), and the threaded rod (404) is threadedly connected to the threaded sleeve (403).

6. The hydraulic tensioner disassembly and assembly auxiliary device according to claim 5, characterized in that: The threaded rod (404) is connected through to the bearing seat (405) connected to the support column (2), and the end of the threaded rod (404) is connected to the driven bevel gear (406).

7. The hydraulic tensioner disassembly and assembly auxiliary device according to claim 6, characterized in that: The surface of the trolley (1) is equipped with a first drive motor (407), and the output end of the first drive motor (407) is connected to a drive bevel gear (408) that meshes with the driven bevel gear (406).

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