Oil stain prevention device for yaw sensor of wind generating set
By designing the anti-greasing device of the yaw sensor in the wind turbine unit, the grease scraping plate and oil scraping components are used to scrape off excess lubricating grease, the problem that the yaw sensor affects the detection accuracy due to grease accumulation is solved, and the accurate detection of the yaw sensor is achieved.
Patent Information
- Application Number
- CN202421803372.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-07-29
AI Technical Summary
The yaw sensor on the wind turbine unit affects the accuracy of the detection results due to the accumulation of excess lubricating grease.
A wind turbine yaw sensor anti-gluing device is designed, including a removable bracket, a yaw sensor, front and rear grease scraper plates, and oil scraper assembly to scrape off excess lubricating grease through the grease scraper plate and oil scraper assembly to prevent it from building up on the yaw sensor.
Effectively scrape off the excess lubricating grease on the yaw gear to prevent it from accumulating on the yaw sensor, thus ensuring the accuracy of the yaw sensor detection results.
Smart Images
Figure CN222863540U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wind turbine generator sets, in particular to an oil pollution prevention device for a yaw sensor of a wind turbine generator set. Background Art
[0002] In order to prevent the yaw gear on the wind turbine from yaw during long-term rotation, most existing wind turbines are equipped with yaw sensors for real-time monitoring of the position of the yaw gear. In order to ensure the normal operation of the yaw gear, the yaw gear needs to be frequently coated with more lubricating grease. However, in order to ensure the monitoring accuracy of the yaw sensor, the detection end of the yaw sensor needs to be set close to the tooth top of the yaw gear, which causes the excess lubricating grease on the yaw gear to easily accumulate on the yaw sensor, affecting the accuracy of the yaw sensor detection results. Utility Model Content
[0003] The utility model aims to solve the above-mentioned deficiencies and provide an oil pollution prevention device for a yaw sensor of a wind turbine generator set, which can scrape off excess lubricating grease on the large gear to prevent it from accumulating on the yaw sensor, thereby ensuring the accuracy of the yaw sensor detection results.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] An oil-proof device for a yaw sensor of a wind turbine generator set comprises a wind turbine generator set and a yaw gearwheel mounted on the wind turbine generator set, and is characterized by: a bracket detachably mounted on the wind turbine generator set, a yaw sensor fixed in the middle of the bracket, a front scraper plate and a rear scraper plate detachably connected to the bracket, a detection end of the yaw sensor being arranged facing the tooth top of the yaw gearwheel, the yaw sensor being arranged between the front scraper plate and the rear scraper plate, and the front scraper plate and the rear scraper plate scraping along the tooth top of the yaw gearwheel during rotation.
[0006] Furthermore, an oil scraper assembly is provided on the bracket.
[0007] Furthermore, the oil scraper assembly includes a slide rail arranged on a bracket, a slider connected to the slide rail for sliding up and down movement, a motor is fixed to the top end of the slide rail, a lead screw is driven and connected to the output end of the motor, an internal threaded hole is arranged on the slider opposite to the lead screw, a front cleaning plate and a rear cleaning plate are installed on the slider, and the front cleaning plate and the rear cleaning plate scrape along the front side of the front scraper plate and the rear side of the rear scraper plate respectively.
[0008] Furthermore, an oil collecting tank is provided below the bracket.
[0009] Furthermore, the front grease scraping plate and the rear grease scraping plate are both made of rubber.
[0010] The beneficial effects of the utility model are:
[0011] In actual applications, during the rotation of the yaw gear on the wind turbine generator set, the front scraper plate and the rear scraper plate scrape along the tooth top of the yaw gear to scrape off excess grease on the tooth top of the yaw gear to prevent it from accumulating on the yaw sensor. The utility model can scrape off excess grease on the gear to prevent it from accumulating on the yaw sensor, thereby ensuring the accuracy of the yaw sensor detection result. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model when in use;
[0013] Figure 2 It is a structural schematic diagram of the utility model;
[0014] Figure 3 It is the front view of the utility model;
[0015] Figure numerals: wind turbine 1; yaw gear 2; bracket 3; yaw sensor 4; front grease scraper 5; rear grease scraper 6; slide rail 71; slider 72; motor 73; lead screw 74; front cleaning plate 75; rear cleaning plate 76; oil collecting tank 8. DETAILED DESCRIPTION
[0016] like Figure 1 , Figure 2 and Figure 3 As shown, an oil-proof device for a yaw sensor of a wind turbine generator set comprises a wind turbine generator set 1 and a yaw gearwheel 2 installed on the wind turbine generator set 1, and is characterized in that: a bracket 3 detachably installed on the wind turbine generator set 1, a yaw sensor 4 fixed in the middle of the bracket 3, a front scraper plate 5 and a rear scraper plate 6 detachably connected to the bracket 3, the detection end of the yaw sensor 4 is arranged facing the tooth top of the yaw gearwheel 2, the yaw sensor 4 is arranged between the front scraper plate 5 and the rear scraper plate 6, and when the yaw gearwheel 2 rotates, the front scraper plate 5 and the rear scraper plate 6 scrape along the tooth top of the yaw gearwheel 2.
[0017] During the rotation of the yaw gearwheel 2 on the wind turbine generator set 1, the front scraper plate 5 and the rear scraper plate 6 scrape along the tooth tops of the yaw gearwheel 2 to scrape off excess grease on the tooth tops of the yaw gearwheel 2 to prevent it from accumulating on the yaw sensor 4. The utility model can scrape off excess grease on the gearwheel to prevent it from accumulating on the yaw sensor 4, thereby ensuring the accuracy of the detection result of the yaw sensor 4.
[0018] like Figure 1 , Figure 2 and Figure 3 As shown, an oil scraping assembly is provided on the bracket 3; in this embodiment, when the wind turbine generator set 1 is shut down and not in use, the front side grease scraping plate 5 and the grease scraped from the front side grease scraping plate 5 can be scraped off by the oil scraping assembly.
[0019] like Figure 1 , Figure 2 and Figure 3 As shown, the oil scraping assembly includes a slide rail 71 arranged on the bracket 3, a slider 72 connected to the slide rail 71 for sliding up and down movement, a motor 73 is fixed to the top of the slide rail 71, and a lead screw 74 is driven and connected to the output end of the motor 73, an internal threaded hole is provided on the slider 72 opposite to the lead screw 74, and a front cleaning plate 75 and a rear cleaning plate 76 are installed on the slider 72, and the front cleaning plate 75 and the rear cleaning plate 76 scrape along the front side of the front scraping plate 5 and the rear side of the rear scraping plate 6 respectively; in this embodiment, when the wind turbine 1 is shut down and not in use, the motor 73 drives the slider 72 to slide downward along the slide rail 71 through the lead screw 74 and the internal threaded hole, and drives the front cleaning plate 75 and the rear cleaning plate 76 through the slider 72 to scrape off the grease on the front scraping plate 5 and the rear scraping plate 6.
[0020] like Figure 1 , Figure 2 and Figure 3 As shown, an oil collecting groove 8 is provided below the bracket 3; in this embodiment, the scraped grease can fall into the oil collecting groove 8 under the action of gravity.
[0021] like Figure 1 , Figure 2 and Figure 3 As shown, the front grease scraping plate 5 and the rear grease scraping plate 6 are both made of rubber. In this embodiment, the front grease scraping plate 5 and the rear grease scraping plate 6 made of rubber have low scraping costs and are not easily stained with grease.
[0022] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the scope defined by the spirit of the present invention.
Claims
1. An oil pollution prevention device for a yaw sensor of a wind turbine generator set, comprising a wind turbine generator set (1) and a yaw gearwheel (2) mounted on the wind turbine generator set (1), characterized in that: A bracket (3) detachably mounted on a wind turbine generator set (1), a yaw sensor (4) fixed to the middle of the bracket (3), a front grease scraping plate (5) and a rear grease scraping plate (6) detachably connected to the bracket (3), a detection end of the yaw sensor (4) being arranged facing the tooth top of the yaw gearwheel (2), the yaw sensor (4) being arranged between the front grease scraping plate (5) and the rear grease scraping plate (6), and the front grease scraping plate (5) and the rear grease scraping plate (6) scraping along the tooth top of the yaw gearwheel (2) during rotation of the yaw gearwheel (2).
2. The wind turbine generator set yaw sensor anti-oil pollution device according to claim 1, characterized in that: An oil scraping assembly is provided on the bracket (3).
3. The oil pollution prevention device for the yaw sensor of a wind turbine generator set according to claim 2, characterized in that: The oil scraping assembly comprises a slide rail (71) arranged on the bracket (3), a slider (72) connected to the slide rail (71) in an upward and downward sliding manner, a motor (73) is fixed to the top end of the slide rail (71), the output end of the motor (73) is drivingly connected to a lead screw (74), an internal threaded hole is arranged on the slider (72) opposite to the lead screw (74), and a front cleaning plate (75) and a rear cleaning plate (76) are installed on the slider (72), and the front cleaning plate (75) and the rear cleaning plate (76) scrape along the front side of the front scraping plate (5) and the rear side of the rear scraping plate (6) respectively.
4. The wind turbine generator set yaw sensor anti-oil pollution device according to claim 3, characterized in that: An oil collecting groove (8) is provided below the bracket (3).
5. The wind turbine generator set yaw sensor anti-oil pollution device according to claim 1, characterized in that: The front grease scraping plate (5) and the rear grease scraping plate (6) are both made of rubber.