A device for removing and reinstalling a brake damper
By designing a combined adjustment mechanism of sliding and supporting parts, the problem of inconvenient disassembly of the brake airlock was solved, enabling smooth disassembly and reassembly of the airlock and improving the safety and efficiency of hydroelectric generator unit maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING DATANG INT WULONG HYDROPOWER DEV
- Filing Date
- 2025-07-24
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, the brake airlock is inconvenient to disassemble and reassemble during the maintenance of hydroelectric generator sets, especially due to the lack of lifting points and its large weight, which leads to difficult operation and low efficiency.
A device for removing and reinstalling a brake damper was designed. By combining a sliding part and a support part, and using an adjustment mechanism to adjust the height of the sliding plane and the support structure, the damper can be smoothly slid and disassembled.
It enables the smooth disassembly and reassembly of the air damper, improving the safety and efficiency of maintenance work and simplifying the operation process.
Smart Images

Figure CN224508952U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of generator set maintenance technology, specifically a device for removing and reinstalling a brake damper. Background Technology
[0002] During the Class C overhaul of a hydroelectric generator set, the brake damper must be inspected. Any defective brake dampers must be repaired to ensure that the unit can be quickly stopped at low speeds, preventing the unit from running at low speeds for extended periods or causing creep due to water leakage from the turbine guide vanes, which could lead to bearing failure. However, brake damper repair cannot be carried out on-site, and there are no available lifting points above the brake damper as the rotor is located there. In addition, the height and weight of the brake damper make disassembly and reassembly inconvenient.
[0003] CN210335784U describes a tool for assembling, disassembling, and maintaining an airlock. The tool includes a platform with lifting legs at each of the four corners of its base. Slide rails are located on both sides of the platform, and slide plates are mounted on these rails via sliders. Traction rods are located at the four corners of the top of each slide plate. A groove is located in the center of the platform, and a threaded screw is rotatably mounted within the groove via a bearing. The platform is adjusted to the height of the airlock using the lifting legs. The airlock is then fixed using the traction rods, and the slide plate moves along with the traction rods via the threaded screw, thereby pulling the airlock for disassembly and relocation. A stop bar is erected to prevent the equipment from slipping. After disassembly, the platform height can be adjusted again using the lifting legs to move the maintenance components to another location. This design is scientifically sound, convenient to use, and improves the safety and reliability of maintenance work, while also significantly increasing work efficiency. However, in this technical solution, the airlock is positioned above the slide plate, and its displacement is achieved by the slide plate relative to the supporting components. Adjusting the position of the slide plate using this method is laborious and difficult, as is moving the airlock by rotating the threaded screw. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a device for removing and reinstalling a brake damper, which solves the problem of inconvenient damper disassembly mentioned in the background art.
[0005] Technical solution
[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a brake damper removal and reinstallation device, including a sliding part for supporting the sliding of the damper, wherein the sliding plane of the sliding part is located on the same horizontal plane as the lower surface of the damper, and a support part for supporting the device is provided at the bottom end of the sliding part, and the device adjusts the height of the sliding plane of the sliding part through an adjustment mechanism.
[0007] Furthermore, a connecting plate is provided at the bottom of the sliding part, and the other end of the connecting plate is hinged to the support unit where the air gate is located. A universal roller is provided at the bottom of the support part.
[0008] Furthermore, the sliding part includes a "C"-shaped groove, the inner bottom wall surface of which is smooth and located on the same plane as the lower surface of the airlock.
[0009] Furthermore, the sliding part includes a support frame, which is rotatably connected to multiple parallel rollers, the rollers being perpendicular to the direction of movement for removing the airlock.
[0010] Furthermore, the support includes a crossbeam fixedly installed at the upper end and the sliding part, and a bottom beam at the bottom end for connecting rollers. The bottom beam is threadedly connected to a threaded shaft that can adjust the distance from the ground. An adjustment mechanism is set between the bottom beam and the crossbeam, and the adjustment mechanism is a threaded sleeve that adjusts the height by a screw.
[0011] Furthermore, the adjustment mechanism is disposed between the support frame and the roller. The adjustment mechanism includes brackets disposed below both ends of the roller. The support frame is provided with adjustment shafts on both sides for adjusting the extension length by a spiral. The adjustment shafts are rotatably connected to the brackets.
[0012] The beneficial effects of this utility model are as follows:
[0013] 1. The brake damper removal and reinstallation device adjusts the height of the sliding plane of the sliding part through the adjustment mechanism. The sliding part supported by the support part supports the disassembled damper from below. At the same time, the height of the sliding part is adjusted by the adjustment mechanism, so that the damper can slide smoothly in the sliding part to complete the disassembly of the damper.
[0014] 2. The brake damper removal and reinstallation device includes a support part with a crossbeam fixedly installed at the upper end and a bottom beam at the lower end for connecting rollers. The bottom beam is threadedly connected to a threaded shaft that can adjust the distance from the ground. By rotating the threaded shaft, the threaded shaft can be made to contact the bottom surface, thereby restricting the movement of the device. The adjustment mechanism is located between the bottom beam and the crossbeam. The adjustment mechanism is a threaded sleeve with a spiral height adjustment. The threaded sleeve is divided into two sections: an inner sleeve at one end and an outer sleeve at the other end. One of them is fixedly connected to the support part, and the other is rotatably connected to the support part. The height is adjusted by rotation. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the sliding part connection of this utility model;
[0017] Figure 3 This is a schematic diagram of the bracket connection of this utility model;
[0018] Figure 4 This is a schematic diagram of the connection of the support part of this utility model.
[0019] Among them, 1. sliding part; 3. support part; 4. adjusting mechanism; 5. connecting plate; 6. roller; 7. trough; 101. bearing frame; 102. roller; 301. crossbeam; 302. bottom beam; 303. threaded shaft; 401. threaded sleeve; 402. bracket; 403. adjusting shaft. Detailed Implementation
[0020] 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.
[0021] See Figures 1-4 A brake damper removal and reinstallation device includes a sliding part 1 for supporting the sliding of the damper. The sliding plane of the sliding part 1 is at the same horizontal plane as the lower surface of the damper. A support part 3 is provided at the bottom end of the sliding part 1 to support the device. The device adjusts the height of the sliding plane of the sliding part 1 through an adjustment mechanism 4. By setting the sliding part 1 supported by the support part 3, the disassembled damper is supported from below. At the same time, by setting the adjustment mechanism 4 to adjust the height of the sliding part 1, the damper can slide smoothly on the sliding part 1.
[0022] A connecting plate 5 is provided at the bottom of the sliding part 1. The other end of the connecting plate 5 is hinged to the support unit where the airlock is located. A universal roller 6 is provided at the bottom of the support part 3. By setting the connecting plate 5 and the roller 6, the sliding part 1 can rotate within a small range relative to the airlock mounting body so that the airlock can be aligned with the hole of the rotor center body.
[0023] The sliding part 1 includes a "C"-shaped groove 7. The inner bottom wall surface of the groove 7 is smooth and is located on the same plane as the lower surface of the air damper. By setting the smooth groove 7, the air damper can be restricted from sliding in the groove 7 to prevent it from falling off.
[0024] The sliding part 1 includes a support frame 101, which is rotatably connected to a plurality of parallel rollers 102. The rollers 102 are perpendicular to the direction of movement of the air damper. By setting the rollers 102, sliding friction can be converted into rolling friction, thus making it easier to move.
[0025] The support part 3 includes a crossbeam 301 fixedly installed at the upper end of the sliding part 1, and a bottom beam 302 set at the bottom end for connecting the roller 6. The bottom beam 302 is threadedly connected to a threaded shaft 303 that can adjust the distance from the ground. By rotating the threaded shaft 303, the threaded shaft 303 can be made to contact the bottom surface, thereby restricting the movement of the device. The adjustment mechanism 4 is set between the bottom beam 302 and the crossbeam 301. The adjustment mechanism 4 is a threaded sleeve 401 with a screw to adjust the height. The threaded sleeve 401 is divided into two sections, one end is an inner sleeve and the other end is an outer sleeve. One of them is fixedly connected to the support part 3, and the other is rotatably connected to the support part 3. The height is adjusted by rotation.
[0026] The adjustment mechanism 4 is located between the support frame 101 and the roller 102. The adjustment mechanism 4 includes a bracket 402 located below both ends of the roller 102. The support frame 101 has an adjustment shaft 403 on both sides for adjusting the extension length. Generally, the height of the support part 3 is relatively standard and the height difference is small. Therefore, it is set on the support frame 101 to make fine adjustments to the height difference. The adjustment shaft 403 is rotatably connected to the bracket 402. Since there are many adjustment shafts 403, the friction belt can be wrapped around and the friction belt pulled to adjust the whole. The adjustment device can also be a telescopic sleeve located between the bracket 402 and the support frame 101.
[0027] In use, the height of the sliding plane of the sliding part 1 is adjusted by the adjustment mechanism 4. The sliding part 1, which is supported by the support part 3, supports the disassembled airlock from below. At the same time, the height of the sliding part 1 is adjusted by the adjustment mechanism 4, so that the airlock can slide smoothly on the sliding part 1, thereby completing the disassembly of the airlock.
[0028] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.
[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A brake shoe removal and reinstallation device comprising a slide (1) for carrying the shoe slide, characterized in that: The sliding plane of the sliding part (1) is on the same horizontal plane as the lower surface of the air gate. The bottom end of the sliding part (1) is provided with a support part (3) to support the device. The device adjusts the height of the sliding plane of the sliding part (1) through the adjustment mechanism (4).
2. A brake shoe removal and reloading device according to claim 1, wherein: The bottom end of the sliding part (1) is provided with a connecting plate (5), and the other end of the connecting plate (5) is hinged to the support unit where the wind gate is located. The bottom end of the support part (3) is provided with a universally movable roller (6).
3. A brake shoe removal and reloading device according to claim 2, wherein: The sliding part (1) includes a "C"-shaped groove (7), the inner bottom wall surface of which is smooth and located on the same plane as the lower surface of the airlock.
4. The brake shoe removal and reinstallation device of claim 2, wherein: The sliding part (1) includes a support frame (101), which is rotatably connected to a plurality of parallel rollers (102), and the rollers (102) are perpendicular to the direction of the wind gate removal and movement.
5. The brake shoe removal and reloading apparatus of claim 2 wherein: The support part (3) includes a crossbeam (301) fixedly installed at the upper end and the sliding part (1), and a bottom beam (302) set at the bottom end for connecting the roller (6). The bottom beam (302) is threadedly connected to a threaded shaft (303) that can adjust the distance from the ground. An adjustment mechanism (4) is set between the bottom beam (302) and the crossbeam (301). The adjustment mechanism (4) is a threaded sleeve (401) that adjusts the height by a screw.
6. A brake shoe removal and reloading device according to claim 4, wherein: The adjustment mechanism (4) is located between the support frame (101) and the roller (102). The adjustment mechanism (4) includes a bracket (402) located below both ends of the roller (102). The support frame (101) is provided with an adjustment shaft (403) on both sides for adjusting the extension length. The adjustment shaft (403) is rotatably connected to the bracket (402).