Replacing device for sliding yaw bearing liner of wind generating set
By designing a liner replacement device for the sliding yaw bearing of a wind turbine generator, and utilizing components such as fastening nuts, a lifting platform, and jacks, the problems of complex operation and high cost in the existing technology have been solved, and a convenient and safe liner replacement process has been achieved.
Patent Information
- Application Number
- CN202520609078.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-04-02
AI Technical Summary
The replacement process for the sliding yaw bearing gaskets in existing wind turbine generator sets is complex, time-consuming to disassemble and install, and involves high labor and equipment costs, as well as potential safety hazards.
Design a device for replacing the sliding yaw bearing liner of a wind turbine generator set, including a yaw bearing liner replacement fixture. It uses a fastening nut, a lifting platform, a jack, a support plate, and an adjusting screw to fix it to the tower flange, thereby simplifying the disassembly and assembly process. The force direction of the jack can be adjusted by adjusting the plane inclination of the lifting platform to ensure uniform force distribution.
This technology has made yaw bearing gasket replacement convenient and safe, reduced costs, simplified operating procedures, reduced the risks of working at heights, and improved replacement efficiency.
Smart Images
Figure CN223781567U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of yaw bearing liner replacement, and particularly to a wind turbine generator unit sliding yaw bearing liner replacement device. BACKGROUND
[0002] The yaw system of the wind turbine generator unit is used for adjusting the direction of the nacelle, so that the wind wheel is always aligned with the wind direction to maximize the capture of wind energy. The sliding yaw bearing is a core component of the yaw system, and its performance directly affects the stability and service life of the wind turbine generator unit in operation. The liner of the conventional sliding yaw bearing is mostly made of high molecular material. Due to the complex working conditions of the wind field, the liner installed on the yaw bearing will be worn to varying degrees during the long-time operation of the wind turbine generator unit, resulting in a loud screeching noise and even nacelle vibration during the yaw process of the wind turbine generator unit. However, the existing yaw bearing liner replacement method has the following problems: the replacement process is complex and labor-intensive, affecting the power generation efficiency; the disassembly and installation process takes a long time, and the labor and equipment costs are high; the high-altitude operation risk is high, and safety accidents are prone to occur. Therefore, there is an urgent need to design a wind turbine generator unit sliding yaw bearing liner replacement device to solve the problems in the prior art. SUMMARY
[0003] The utility model aims at solving the problems in the prior art, providing a wind turbine generator unit sliding yaw bearing liner replacement device, optimizing the replacement process, reducing the labor and equipment costs, improving the yaw bearing liner replacement efficiency, and being suitable for various types and specifications of yaw bearings while ensuring safety.
[0004] To achieve the above-mentioned purpose, the utility model provides a technical scheme: a wind turbine generator unit sliding yaw bearing liner replacement device, including at least two yaw bearing liner replacement tools, each of which is arranged below the brake on the left and right sides of the liner; wherein the yaw bearing liner replacement tool includes a fastening nut, a jacking platform, a jack, a support plate, and an adjusting screw; the jacking platform has a platform panel with a plurality of waist round holes for adapting to different specifications of the tower flange bolts; the jacking platform is fixed to the tower flange of the wind turbine generator unit through the fastening nut; the jacking platform has a horizontal adjusting hole on the side, and the adjusting screw is movably installed in the horizontal adjusting hole to adjust the levelness of the jacking platform; the jack is installed on the top of the jacking platform; the support plate is installed on the top of the jack and located at the bottom of the brake.
[0005] Further, the jacking platform includes a platform panel and a diagonal brace, the diagonal brace has two diagonal braces installed below the platform panel through a bolt assembly, and the horizontal adjusting hole is opened on the side of the diagonal brace.
[0006] Further, the support plate is a steel support plate.
[0007] Further, the jack is a hydraulic jack and is connected with a hydraulic control system.
[0008] Further, the yaw bearing pad replacement tool has four.
[0009] Compared with the prior art, the utility model has the following advantages and beneficial effects:
[0010] The utility model discloses a structure is simplified through fixed mounting on the tower drum flange, guarantees its security when dismantling process is also more convenient, and the utility model discloses can pass through the plane inclination of jacking platform and then the stress direction of jack is adjusted flexibly, thereby making the stress even in the yaw bearing jacking process, and the overall cost of the device is low, and the weight is light, and it is convenient to promote. BRIEF DESCRIPTION OF DRAWINGS
[0011] Fig. 1 It is the structural schematic diagram of the utility model.
[0012] Fig. 2 It is the structure side view of jacking platform.
[0013] Fig. 3 It is the structure of jacking platform bottom view. DETAILED DESCRIPTION
[0014] The utility model will be further explained in connection with specific embodiment.
[0015] In the utility model, unless another definite provision and limitation, the terms "installation", "link", "connection", "fix" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through intermediate medium, can be the intercommunication of two elements or the interaction of two elements, unless another definite limitation. For ordinary skilled in the art, the above-mentioned terms can be understood according to the specific meaning in the utility model.
[0016] Example 1
[0017] Referring to Figs. 1-3 As shown, it is the wind generating set sliding yaw bearing pad replacement device provided by the embodiment, which comprises four yaw bearing pad replacement tools a, and the sliding yaw bearing pad replacement safety can be better guaranteed when the four yaw bearing pad replacement tools a are used, and every two yaw bearing pad replacement tools a are correspondingly arranged below the brake b on the left and right sides of the pad.
[0018] The yaw bearing pad replacement tool a comprises a fastening nut 1, a jacking platform 2, a jack 3, a support plate 4 and an adjusting screw rod 5; the jacking platform 2 comprises a platform panel 201 and a diagonal brace 202, the platform panel 201 is provided with a diagonal brace mounting hole 2012, the diagonal brace 202 is connected with the diagonal brace mounting hole 2012 through a bolt assembly and is installed below the platform panel 201, a horizontal adjusting hole 2021 is formed in the side of the diagonal brace 202, the platform panel 201 is provided with a plurality of waist round holes 2011 for adapting to different specifications of the tower flange bolts c; the jacking platform 2 is fixed with the tower flange of the wind turbine generator set through the fastening nut 1; the fastening nut 1 is an elongated fastening nut 1; the jacking platform 2 is provided with a horizontal adjusting hole 2021 on the side, the adjusting screw rod 5 is movably installed in the horizontal adjusting hole 2021, and the levelness of the jacking platform 2 is adjusted through the movement of the adjusting screw rod 5; the jack 3 is installed on the top of the jacking platform 2, and the jack 3 is a hydraulic jack 3 and is connected with a hydraulic control system; the support plate 4 is installed on the top of the jack 3 and is located at the bottom of the brake b, the support plate 4 is a steel support plate 4, and the length and thickness of the steel support plate 4 are determined according to the size and weight of the brake b, so that the jacking stroke of the jack 3 can be finely adjusted while the brake b is supported.
[0019] Embodiment 2
[0020] Referring to Fig. 1 As shown in the drawings, the pad replacement method based on the sliding yaw bearing pad replacement device of the wind turbine generator set provided in the embodiment 1 is as follows:
[0021] S1, the yaw bearing pad to be replaced is yawed into the space without the yaw brake b, or the yaw brake b in front of the pad to be replaced is removed first.
[0022] S2, the adjusting bolts of the left and right two groups of yaw bearing pads are loosened, so that a gap is formed between the lower pad and the yaw brake disc.
[0023] S3, the jacking platform 2 is fixed on the tower flange bolts through the fastening nut 1, and the platform panel of the jacking platform 2 is adjusted to be horizontal through the extension and movement of the adjusting screw rod 5, and the installation and adjustment of the other three jacking platforms 2 are the same.
[0024] S4, the jack 3 is placed on the jacking platform 2, the support plate 4 is placed between the jack 3 and the brake, four jacks 3 are uniformly loaded, the left and right brakes b are slowly jacked up, then the screws are screwed into the corresponding screw holes of the upper pad, the upper pad of the brake b to be replaced is pulled out, and the new upper pad is put in.
[0025] S5, the jacks 3 are depressurized, and the support plate 4, the jacks 3 and the support plate 4 are removed.
[0026] S6, using hydraulic wrench will be loose yaw brake b dress.
[0027] S7, after replacement, using a grease gun to give the upper gasket 50 ml of lubricating grease.
[0028] The above-mentioned embodiments are only the preferred embodiments of the present application, and are not intended to limit the scope of the present application. Any changes made in accordance with the shape and principle of the present application should be covered within the scope of protection of the present application.
Claims
1. A device for replacing the shims of a sliding yaw bearing in a wind turbine generator set, characterized in that: The system includes at least two yaw bearing liner replacement fixtures, each set corresponding to the brake located on the left and right sides of the liner. Each yaw bearing liner replacement fixture includes a fastening nut, a lifting platform, a jack, a support plate, and an adjusting screw. The lifting platform has multiple oval holes on its panel to accommodate tower flange bolts of different sizes. The lifting platform is fixed to the tower flange of the wind turbine generator by the fastening nut. The lifting platform has a lateral horizontal adjustment hole, and the adjusting screw is movably installed in the horizontal adjustment hole to adjust the levelness of the lifting platform. The jack is installed on top of the lifting platform. The support plate is installed on top of the jack and located at the bottom of the brake.
2. The wind turbine generator sliding yaw bearing shim replacement device according to claim 1, characterized in that: The lifting platform includes a platform panel and diagonal braces. Two diagonal braces are installed below the platform panel by bolt assemblies, and the horizontal adjustment holes are opened on the side of the diagonal braces.
3. The wind turbine generator sliding yaw bearing shim replacement device according to claim 1, characterized in that: The support plate is a steel support plate.
4. The wind turbine generator sliding yaw bearing shim replacement device according to claim 1, characterized in that: The jack is a hydraulic jack and is connected to a hydraulic control system.
5. A device for replacing the sliding yaw bearing shim of a wind turbine generator set according to claim 1, characterized in that: There are four tooling fixtures for replacing the yaw bearing liner.