Hydraulic cylinder sealing ring dismounting device
By designing a hydraulic cylinder seal ring removal device that utilizes a gear reduction motor and rack system, the problems of slow removal speed and unsafe operation in the prior art are solved, and a more efficient and safer seal ring removal process is achieved.
Patent Information
- Application Number
- CN202420751226.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-11
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-04-11
AI Technical Summary
In the prior art, when removing the seal ring of the hydraulic cylinder, tools such as screwdrivers and hammers are commonly used, resulting in slow disassembly speed and easy to cause damage to the hands during operation.
A hydraulic cylinder seal ring removal device is designed, and the gear rack system is used to drive the movable square rod to move, pull the seal ring out by pulling the hook, and separate the seal ring from the hydraulic cylinder through the operating rod.
It improves the efficiency and safety of seal ring removal, avoids damage caused by collision between tools and hands, and is suitable for seal ring removal at different heights.
Smart Images
Figure CN222644436U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of hydraulic cylinder repair, and in particular relates to a hydraulic cylinder sealing ring removal device. Background Art
[0002] After long-term use, the hydraulic cylinder needs to have its components repaired and replaced, especially the hydraulic cylinder sealing ring, which is a key component that plays a sealing role in the hydraulic system. It is mainly used to prevent hydraulic oil leakage and contamination and maintain the stability of oil pressure.
[0003] The existing technology for disassembling the hydraulic cylinder seal ring is often to use tools such as screwdrivers and hammers for disassembly. During the disassembly process, not only is the disassembly speed slow, but during the operation, tools such as screwdrivers and hammers are prone to collide with the hands, which can easily cause damage to the operator's hands. For this reason, a hydraulic cylinder seal ring removal device is specially provided to solve the above technical problems. Utility Model Content
[0004] In view of the existing technology, when removing the sealing ring in the hydraulic cylinder, tools such as screwdrivers and hammers are generally used for disassembly, which has the problems of slow disassembly speed and easy to cause damage to hands during operation. The utility model provides a hydraulic cylinder sealing ring removal device. In actual use, it can use the reduction motor to drive the two movable square rods to move outward under the action of the gear and rack, so as to insert the hook into the sealing ring, and then use the reduction motor to rotate in the opposite direction to move the movable square rod inward, so as to use the hook to pull the sealing ring out of the inner wall of the hydraulic cylinder. After pulling it out, the rotating operating rod drives the two movable square rods to rotate to separate the sealing ring from the hydraulic cylinder as a whole, so as to achieve the removal density. The whole removal work is more efficient, the operation is simpler and more convenient, and it can avoid the collision between the tool and the hand to cause injury, which effectively solves the problem of slow disassembly speed, low efficiency and laborious operation when removing the sealing ring in the hydraulic cylinder in the existing technology. Its specific technical scheme is as follows:
[0005] A hydraulic cylinder sealing ring removal device comprises a cavity base, a rotating column is embedded and rotatably installed on the upper surface of the cavity base, a carrier block is fixedly installed on the top of the rotating column, two movable square rods are slidably installed on the upper surface of the carrier block, the outer ends of the movable square rods are both conical, and the outer ends of the movable square rods are both integrally formed with pulling hooks, and the inner surfaces of the movable square rods are fixedly installed with racks, and a reduction motor is embedded and installed on the upper surface of the carrier block, and the output end of the reduction motor is provided with a gear, and the gear is meshingly connected between the two racks, and an operating rod is fixedly installed on the outer surface of the carrier block.
[0006] In the above technical solution, a screw is threadedly installed through the inner cavity of the cavity base, a counterweight seat is rotatably installed on the bottom end of the screw, ear blocks are symmetrically fixedly installed on the outer surface of the cavity base, guide rods are installed through the upper surfaces of the ear blocks, and the lower surfaces of the guide rods are fixedly connected to the upper surface of the counterweight seat.
[0007] In the above technical solution, a hexagonal nut is sleeved on the outer surface of the lower end of the screw.
[0008] In the above technical solution, a limiting block is fixedly installed on the top end of the screw rod.
[0009] In the above technical solution, two T-shaped slide rails are symmetrically fixedly installed on the upper surface of the carrier block, and T-shaped slide grooves are opened on the lower surface of the movable square rod. The T-shaped slide grooves are slidably connected with the corresponding T-shaped slide rails.
[0010] In the above technical solution, a heat dissipation port is provided between the outer surface of the carrier block and the mounting groove.
[0011] Compared with the prior art, the hydraulic cylinder seal ring removal device of the utility model has the following beneficial effects:
[0012] 1. The utility model can utilize a reduction motor, under the action of a gear and a rack, to drive two movable square rods to move outward, thereby inserting a hook into the sealing ring, and then utilize the reduction motor to rotate in the opposite direction to move the movable square rod inward, thereby utilizing the hook to pull the sealing ring out of the inner wall of the hydraulic cylinder. After pulling it out, the rotating operating rod drives the two movable square rods to rotate so that the sealing ring can be separated from the hydraulic cylinder as a whole, thereby achieving the purpose of removal. The entire removal work is more efficient, simpler and more convenient to operate, and can avoid the occurrence of injuries caused by collision between tools and hands.
[0013] Second, when the utility model is used to disassemble the sealing rings at different heights, the wrench can be clamped on the hexagonal bolt and the screw can be rotated to drive the cavity base and the upper parts to adjust the use height, so that it is suitable for disassembling the sealing rings at different heights, increasing its applicability. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.
[0016] Figure 3 This is a schematic diagram of the carrier structure of the utility model.
[0017] Figure 4 This is a schematic diagram of the cavity base structure of the utility model.
[0018] Figure 5 It is a schematic diagram of the structure of the utility model when in use.
[0019] Figure 1-5 Among them: 1. Cavity base; 11. Ear block; 2. Rotating column; 3. Carrying block; 31. Mounting slot; 32. T-type slide rail; 33. Heat dissipation port; 4. Movable square rod; 41. Drag hook; 42. Rack; 43. T-type slide slot; 5. Reducer motor; 51. Gear; 6. Operating lever; 7. Counterweight seat; 8. Screw; 81. Hexagonal nut; 82. Limit block; 9. Guide rod. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] See also Figure 1-Figure 5 , the utility model provides a technical solution:
[0022] A hydraulic cylinder seal ring removal device comprises a cavity base 1, a rotating column 2 is embedded and rotatably installed on the upper surface of the cavity base 1, a carrier block 3 is fixedly installed on the top of the rotating column 2, two movable square rods 4 are slidably installed on the upper surface of the carrier block 3, the outer ends of the movable square rods 4 are all conical, and the outer ends of the movable square rods 4 are all integrally formed with a drag hook 41, and the inner surfaces of the movable square rods 4 are all fixedly installed with a rack 42, a reduction motor 5 is embedded and installed on the upper surface of the carrier block 3, and the output end of the reduction motor 5 is sleeved with a gear 51, and the gear 51 is meshed and connected between the two racks 42, and an operating rod 6 is fixedly installed on the outer surface of the carrier block 3;
[0023] When using, Figure 5 As shown ( Figure 5The sealing ring and the hydraulic cylinder in the figure are in the cut-away state), the hydraulic cylinder is buckled on the outside of the whole device, and then the reduction motor 5 is connected to the external power supply and the external controller for use, and the reduction motor 5 is controlled by the external controller to rotate clockwise, which can drive the corresponding movable square rod 4 to move outward under the linkage of the gear 51 and the rack 42, so that the tapered end of the movable square rod 4 is inserted into the sealing ring, and the hook 41 is used to hook it from the inside of the sealing ring, and then the reduction motor 5 is controlled to rotate in the opposite direction, so as to drive the movable square rod 4 to move inward, and the sealing ring is dragged inward so that it partially detaches from the inner wall of the hydraulic cylinder, and then, the operating rod 6 is manually rotated to drive the carrier block 3 and the movable square rod 4 to rotate, so that the sealing ring can be completely separated from the inner side of the hydraulic cylinder, and the removal work is completed. After removal, the sealing ring can be manually removed from the hook 41. The whole operation process is more efficient and labor-saving than the disassembly using tools such as screwdrivers and hammers in the prior art, and is safer during operation, and there will be no collision between tools and hands.
[0024] It is worth noting that in order to facilitate the use of the device for removing the sealing rings at different heights in the hydraulic cylinder, Figure 2 As shown, a screw rod 8 is threadedly installed in the inner cavity of the cavity base 1, and a counterweight seat 7 is rotatably installed on the bottom end of the screw rod 8. Ear blocks 11 are symmetrically fixedly installed on the outer surface of the cavity base 1, and guide rods 9 are installed on the upper surfaces of the ear blocks 11. The lower surfaces of the guide rods 9 are fixedly connected to the upper surface of the counterweight seat 7. The distance between the cavity base 1 and the counterweight seat 7 can be adjusted by rotating the screw rod 8 to drive the cavity base 1 to move up and down, so that the device is suitable for removing sealing rings at different heights.
[0025] In addition, in order to facilitate the adjustment of the rotating screw 8, as Figure 2 As shown, a hexagonal nut 81 is sleeved on the outer surface of the lower end of the screw rod 8. The addition of the hexagonal nut 81 allows the screw rod 8 to be twisted by clamping an external wrench on the outer surface of the hexagonal nut 81, making the rotation adjustment of the screw rod 8 more convenient and labor-saving.
[0026] In addition, in order to prevent the cavity base 1 from excessively displacing from the screw rod 8 during the rotation adjustment of the screw rod 8, as shown in FIG. Figure 2 As shown, a limit block 82 is fixedly installed at the top of the screw rod 8, and the limit block 82 is located in the inner cavity of the cavity base 1. The limit block 82 can be used to limit the upward movement distance of the cavity base 1 to prevent it from separating from the screw rod 8.
[0027] Specifically, if Figure 3 As shown, two T-shaped slide rails 32 are symmetrically fixedly installed on the upper surface of the carrier block 3, and a T-shaped slide groove 43 is opened on the lower surface of the movable square rod 4. The movable square rod 4 is slidably installed on the upper surface of the carrier block 3 by slidingly connecting the T-shaped slide groove 43 with the corresponding T-shaped slide rail 32.
[0028] Finally, when the reduction motor 5 is working, in order to facilitate heat dissipation, a heat dissipation port 33 is opened between the outer surface of the carrier block 3 and the mounting groove 31. The heat generated by the reduction motor 5 when working can be dissipated through the heat dissipation port 33, thereby ensuring the service life of the reduction motor 5.
Claims
1. A hydraulic cylinder seal ring removal device, comprising a cavity base (1), characterized in that: A rotating column (2) is embedded and rotatably mounted on the upper surface of the cavity base (1), a carrier block (3) is fixedly mounted on the top of the rotating column (2), two movable square rods (4) are slidably mounted on the upper surface of the carrier block (3), the outer ends of the movable square rods (4) are all conical, and the outer ends of the movable square rods (4) are all integrally formed with a pulling hook (41), and the inner surfaces of the movable square rods (4) are all fixedly mounted with a rack (42), a reduction motor (5) is embedded and mounted on the upper surface of the carrier block (3), and the output end of the reduction motor (5) is sleeved with a gear (51), and the gear (51) is meshingly connected between the two racks (42), and an operating rod (6) is fixedly mounted on the outer surface of the carrier block (3).
2. A hydraulic cylinder seal ring removal device according to claim 1, characterized in that: A screw rod (8) is threadedly installed in the inner cavity of the cavity base (1), and a counterweight seat (7) is rotatably installed on the bottom end of the screw rod (8). Ear blocks (11) are symmetrically fixedly installed on the outer surface of the cavity base (1), and guide rods (9) are installed on the upper surfaces of the ear blocks (11), and the lower surfaces of the guide rods (9) are fixedly connected to the upper surface of the counterweight seat (7).
3. A hydraulic cylinder seal ring removal device according to claim 2, characterized in that: The outer surface of the lower end of the screw rod (8) is sleeved with a hexagonal nut (81).
4. A hydraulic cylinder seal ring removal device according to claim 3, characterized in that: A limit block (82) is fixedly mounted on the top end of the screw rod (8).
5. A hydraulic cylinder seal ring removal device according to claim 4, characterized in that: Two T-shaped slide rails (32) are symmetrically fixedly mounted on the upper surface of the carrier block (3), and a T-shaped slide groove (43) is provided on the lower surface of the movable square rod (4), and the T-shaped slide groove (43) is slidably connected to the corresponding T-shaped slide rail (32).
6. A hydraulic cylinder seal ring removal device according to any one of claims 1 to 5, characterized in that: A heat dissipation port (33) is provided between the outer surface of the carrier block (3) and the mounting groove (31).