Yaw gear ring lubricating grease mechanical scraper
By designing a mechanical grease scraper for yaw gear ring lubrication, the uniform spraying and scraping of lubricating grease is automated, solving the problem of low efficiency in the scraping operation of lubricating grease in the existing technology, and improving the operational reliability and efficiency of wind turbine generators.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-26
- Publication Date
- 2026-03-20
AI Technical Summary
In existing technologies, the lubricating grease scraping operation of yaw gear rings relies on manual operation, which is inefficient and has poor uniformity, and cannot meet the long-term stable operation requirements of wind turbine generators.
A mechanical grease scraper for yaw gear ring lubrication was designed, comprising a worktable, an annular lubricating component, a scraper head, and a hydraulic telescopic rod. The system achieves uniform spraying and scraping of lubricating grease through an automated system. Combined with the inner and outer scrapers for lubrication of the inner and outer rings of the yaw gear ring, the lubrication effect is ensured.
It achieves efficient and uniform lubrication of the yaw gear ring, improves the service life and operating efficiency of the equipment, reduces manual intervention, and maintains a clean working environment.
Smart Images
Figure CN224018150U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of yaw gear technology, specifically a mechanical scraper for yaw gear lubricating grease. Background Technology
[0002] In wind turbine generators, the yaw system is the core component that ensures the nacelle is always aligned with the wind direction. The long-term stable operation of its key component—the yaw gear ring—is directly related to the reliability and power generation efficiency of the entire unit.
[0003] Because yaw gear rings are subjected to complex alternating loads and environmental corrosion (such as wind, sand, rain, and salt spray) over long periods, they rely on lubricating grease to form a protective oil film to reduce tooth surface wear, friction noise, and prevent corrosion. However, in existing technologies, the lubricating grease spreading operation of yaw gear rings still heavily relies on manual operation, resulting in significant drawbacks such as low efficiency and poor uniformity. To address this, we propose a mechanical grease spreader for yaw gear rings. Utility Model Content
[0004] To address the problems mentioned in the background art, this utility model provides the following technical solution: a mechanical scraper for yaw gear ring lubricating grease, comprising a worktable, a placement groove for accommodating the yaw gear ring body, multiple through holes on the side of the placement groove, an annular chamber on the bottom side of the worktable, an annular lubricating component inside the annular chamber, the annular lubricating component having a nozzle, the nozzle penetrating through the through hole and connected to the side of the placement groove, the annular lubricating component being connected to a conveying assembly, the worktable having a vertical plate, the vertical plate having an extension parallel to the surface of the worktable, a hydraulic telescopic rod at the bottom of the extension, a rotary motor at the bottom of the hydraulic telescopic rod, and a scraping head at the output end of the rotary motor.
[0005] Preferably, the delivery assembly includes a lubricating fluid reservoir, which is connected to an annular lubricating component via a delivery pipe. A pump body is installed on the delivery pipe to ensure that the lubricating grease can be smoothly delivered from the lubricating fluid reservoir to the annular lubricating component, thereby ensuring a stable supply of lubricating grease and making the lubrication process smoother and more efficient.
[0006] Preferably, the scraping head has an inner scraping head and an outer scraping head. The outer scraping head is longer than the inner scraping head. The size of the inner scraping head matches the inner ring of the yaw gear body. The outer scraping head contacts the upper part of the yaw gear body. The inner scraping head can penetrate deep into the inner ring of the yaw gear to scrape evenly, ensuring the uniform distribution of lubricating grease in the inner ring. The outer scraping head contacts the upper part of the yaw gear body to scrape evenly the lubricating grease on the upper part of the yaw gear, so that the lubricating grease of the entire yaw gear can be effectively scraped evenly, improving the lubrication effect.
[0007] Preferably, the placement slot has a drain hole, and the bottom of the workbench is provided with a receiving box. The receiving box is located at the bottom of the drain hole, so that excess lubricating grease can leak out from the placement slot, preventing the lubricating grease from accumulating in the placement slot and keeping the workbench clean. The receiving box is used to collect the excess lubricating grease leaking from the drain hole, preventing the lubricating grease from dripping onto the workbench or the ground, facilitating the recycling and treatment of excess lubricating grease, and also keeping the working environment clean.
[0008] Preferably, the bottom of the annular chamber is provided with a fixing component to firmly fix the annular lubricating component to the worktable, ensuring that the annular chamber will not shift or shake during operation, thereby ensuring the stability and reliability of the annular lubricating component, and enabling the lubricating grease to be sprayed out stably from the annular lubricating component to provide uniform lubrication for the yaw gear ring.
[0009] Preferably, the lubricating fluid reservoir is provided with a filling port, which facilitates the addition of lubricating grease to the lubricating fluid reservoir, making it convenient for operators to replenish the lubricating grease and ensuring an adequate supply of lubricating grease.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] During operation, the yaw gear ring body is placed in the placement slot, and lubricating grease is added to the lubricating fluid reservoir through the injection port. The pump is started to deliver the lubricating grease from the lubricating fluid reservoir to the annular lubricating component, and then evenly sprayed onto the yaw gear ring body through the nozzle. The hydraulic telescopic rod controls the scraping head to descend to the surface of the yaw gear ring, and the rotary motor drives the scraping head to rotate. The inner scraping head and the outer scraping head perform scraping operations on the inner ring and the upper part of the yaw gear ring, respectively. Excess lubricating grease leaks out through the drain hole and is collected by the receiving box. The fixation of the fasteners is checked regularly to ensure the stability of the annular chamber. At the same time, lubricating grease is replenished to the lubricating fluid reservoir to ensure the continuous operation of the equipment. It can efficiently and evenly scrape the yaw gear ring with lubricating grease, ensuring the lubrication effect of the yaw gear ring and improving the service life and operating efficiency of the equipment. Attached Figure Description
[0012] 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:
[0013] Figure 1 This is a front view of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the overall bottom view of the present invention;
[0015] Figure 3 This is a schematic diagram of the scraping head structure of this utility model;
[0016] In the diagram: 1. Workbench; 2. Placement trough; 3. Annular chamber; 4. Nozzle; 5. Lubricating fluid reservoir; 6. Delivery pipe; 7. Pump body; 8. Hydraulic telescopic rod; 9. Scraper head; 10. Receiving box; 11. Fixture. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0018] Depend on Figure 1-3 The present invention includes a workbench 1, on which a placement groove 2 is provided for accommodating the yaw gear body. The placement groove 2 has multiple through holes on its side. An annular chamber 3 is provided on the bottom side of the workbench 1. An annular lubricant is provided in the annular chamber 3. The annular lubricant has a nozzle 4, which passes through the through hole and is connected to the side of the placement groove 2. The annular lubricant is connected to a conveying assembly. The workbench 1 has a vertical plate with an extension parallel to the surface of the workbench 1. A hydraulic telescopic rod 8 is provided at the bottom of the extension. A rotary motor is provided at the bottom of the hydraulic telescopic rod 8. A scraping head 9 is provided at the output end of the rotary motor.
[0019] The delivery assembly includes a lubricating fluid reservoir 5, which is connected to an annular lubricating component via a delivery pipe 6. A pump body 7 is installed on the delivery pipe 6 to ensure that the lubricating grease can be smoothly delivered from the lubricating fluid reservoir 5 to the annular lubricating component, thereby ensuring a stable supply of lubricating grease and making the lubrication process smoother and more efficient.
[0020] The scraping head 9 has an inner scraping head and an outer scraping head. The outer scraping head is longer than the inner scraping head. The size of the inner scraping head matches the inner ring of the yaw gear body. The outer scraping head contacts the upper part of the yaw gear body. The inner scraping head can penetrate deep into the inner ring of the yaw gear to scrape evenly, ensuring the uniform distribution of lubricating grease in the inner ring. The outer scraping head contacts the upper part of the yaw gear body and is used to scrape evenly the lubricating grease on the upper part of the yaw gear, so that the lubricating grease of the entire yaw gear can be effectively scraped evenly, improving the lubrication effect.
[0021] The placement slot 2 has a drain hole, and the bottom of the workbench 1 is equipped with a receiving box 10. The receiving box 10 is located at the bottom of the drain hole, so that excess lubricating grease can leak out from the placement slot, preventing the lubricating grease from accumulating in the placement slot and keeping the workbench clean. The receiving box is used to collect the excess lubricating grease leaking out from the drain hole, preventing the lubricating grease from dripping onto the workbench or the ground, facilitating the recycling and treatment of excess lubricating grease, and also keeping the working environment clean.
[0022] The bottom of the annular chamber 3 is equipped with a fixing component 11, which firmly fixes the annular lubricating component to the worktable 1, ensuring that the annular chamber will not shift or shake during operation, thereby ensuring the stability and reliability of the annular lubricating component, and enabling the lubricating grease to be sprayed out stably from the annular lubricating component, providing uniform lubrication for the yaw gear ring.
[0023] The lubricating fluid reservoir 5 is equipped with a filling port, which makes it easy to add lubricating grease into the lubricating fluid reservoir, allowing operators to replenish the lubricating grease and ensuring an adequate supply of lubricating grease.
[0024] Working principle: During operation, the yaw gear ring body is placed in the placement groove 2. Lubricating grease is added to the lubricating fluid receiving chamber 5 through the injection port. The pump body 7 is started to transport the lubricating grease from the lubricating fluid receiving chamber to the annular lubricating component, and then sprays it evenly onto the yaw gear ring body through the nozzle 4. The hydraulic telescopic rod 8 controls the scraping head 9 to descend to the surface of the yaw gear ring. The rotary motor drives the scraping head to rotate. The inner scraping head and the outer scraping head perform scraping operations on the inner ring and the upper part of the yaw gear ring, respectively. Excess lubricating grease leaks out through the drain hole and is collected by the receiving box 10. The fixing condition of the fixing component 11 is checked regularly to ensure the stability of the annular chamber. At the same time, lubricating grease is replenished to the lubricating fluid receiving chamber to ensure the continuous operation of the equipment. It can efficiently and evenly scrape the yaw gear ring with lubricating grease, ensuring the lubrication effect of the yaw gear ring and improving the service life and operating efficiency of the equipment.
[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A mechanical grease scraper for yaw gear ring lubrication, comprising a worktable (1), characterized in that: The workbench (1) is provided with a placement slot (2) for accommodating the yaw gear body. The placement slot (2) has multiple through holes on its side. The workbench (1) has an annular chamber (3) on its bottom side. An annular lubricant is provided in the annular chamber (3). The annular lubricant has a nozzle (4) that passes through the through hole and is connected to the side of the placement slot (2). The annular lubricant is connected to the conveying assembly. The workbench (1) has a vertical plate with an extension parallel to the surface of the workbench (1). A hydraulic telescopic rod (8) is provided at the bottom of the extension. A rotary motor is provided at the bottom of the hydraulic telescopic rod (8). A scraping head (9) is provided at the output end of the rotary motor.
2. The mechanical grease scraper for yaw gear ring lubrication according to claim 1, characterized in that: The delivery assembly includes a lubricating fluid reservoir (5), which is connected to an annular lubricating component via a delivery pipe (6), and a pump body (7) is provided on the delivery pipe (6).
3. The mechanical grease scraper for yaw gear ring lubrication according to claim 2, characterized in that: The scraping head (9) has an inner scraping head and an outer scraping head. The length of the outer scraping head is shorter than that of the inner scraping head. The size of the inner scraping head matches the inner ring of the yaw gear body. The outer scraping head contacts the upper part of the yaw gear body.
4. The mechanical grease scraper for yaw gear ring lubrication according to claim 3, characterized in that: The placement slot (2) has a drain hole, and the bottom of the workbench (1) is provided with a receiving box (10), which is located at the bottom of the drain hole.
5. A mechanical grease scraper for yaw gear ring lubrication according to claim 4, characterized in that: The bottom of the annular chamber (3) is provided with a fastener (11).
6. A mechanical grease scraper for yaw gear ring lubrication according to claim 5, characterized in that: The lubricant reservoir (5) is provided with an injection port.