Oil changing device of wind power yaw speed reducer

Abstract

The utility model relates to wind power generation technical field especially relates to a kind of oil changing device of wind power generation yaw speed reducer, including base, base is set to rectangular plate, four corners at the bottom of base are evenly installed with gyro wheel, right end fixed mounting of base top is stored oil drum, left end fixed mounting of base top is oil collecting barrel, top plate is installed in stored oil drum and oil collecting barrel, the outside of stored oil drum and oil collecting barrel is evenly installed with measuring cylinder, and the bottom of stored oil drum and oil collecting barrel inner cavity is communicated with the bottom of measuring cylinder respectively, oil extraction pipe is inserted in the top of stored oil drum, and it is connected with the oil injection assembly of oil extraction pipe top end and installed in the right end of top plate top, and oil injection assembly is installed with the oil discharge assembly being communicated with it above, the utility model realizes oil injection, oil discharge integrated operation by integration design, simplifies process, air pump auxiliary oil discharge is combined with anti-pollution design, effectively improves oil changing efficiency and cleanliness, guarantees the lubricating property and service life of yaw speed reducer.

Description

Technical Field

[0001] This utility model relates to the field of wind power generation technology, and in particular to an oil changing device for a wind power generation yaw reducer. Background Technology

[0002] In the field of wind power generation technology, the yaw reducer is a key component of wind turbine generator sets. Its operating status directly affects whether the unit can generate electricity stably. In order to ensure the lubrication performance of the yaw reducer and extend its service life, it is necessary to change its oil regularly.

[0003] However, existing oil changing devices for wind turbine yaw reducers have significant shortcomings in practical use: during the oil draining and oil filling process of the reducer, the old oil drainage efficiency is low and the drainage is often not thorough, resulting in some old oil residue. This residue of old oil will contaminate the subsequently injected new oil, thereby affecting the lubrication effect of the reducer. In view of this, this application proposes an oil changing device for wind turbine yaw reducers. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an oil changing device for a wind power generation yaw reducer, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides an oil changing device for a wind power generation yaw reducer, comprising:

[0006] The base is designed as a rectangular plate, with casters installed at the four corners of the bottom.

[0007] The oil storage tank is fixedly installed on the right end of the top of the base;

[0008] The oil collection tank is fixedly installed on the top left end of the base;

[0009] Top plate, installed on top of oil storage tanks and oil collection tanks;

[0010] Two measuring cylinders are provided and installed on the outside of the oil storage tank and the oil collection tank respectively, and the bottom of the measuring cylinders are connected to the bottom of the inner cavity of the oil storage tank and the oil collection tank respectively.

[0011] The oil extraction pipe runs through the top plate and the top of the oil storage tank;

[0012] The oil injection assembly is installed at the right end of the top plate and connected to the top of the oil extraction pipe, and an oil discharge assembly connected to it is installed above the oil injection assembly.

[0013] The oil inlet pipe passes through the top plate and connects to the top of the oil collection tank.

[0014] Furthermore, an oil injection pipe that communicates with the interior and is inclined upwards is fixedly installed on the upper part of the outer side of the oil storage tank, and the bottom end of the oil extraction pipe extends to the bottom of the inner cavity of the oil storage tank without contacting the bottom.

[0015] Furthermore, an L-shaped drain pipe is fixedly installed at the center of the bottom of the oil collection tank, with the end of the drain pipe away from the oil collection tank extending out from the left end of the base.

[0016] Furthermore, the oil injection assembly includes an oil pump, an oil guide pipe, and a hose. The oil pump is fixedly mounted on the top plate, and its input end is connected to the top of the oil suction pipe. The oil guide pipe is L-shaped, and its horizontal end is connected to the output end of the oil pump. Both ends of the hose are equipped with connectors, and the connector at one end of the hose is threaded onto the vertical end of the oil guide pipe. The connector at the other end of the hose can be connected to the oil injection port on the yaw reducer. An oil valve is provided on the vertical part of the oil guide pipe.

[0017] Furthermore, a mounting bracket covering the oil pump is fixedly installed on the top of the top plate. The oil discharge assembly is installed on the mounting bracket and includes an air pump, an air guide pipe, and an air-water separator. The air pump is located on the top of the mounting bracket, the air-water separator is fixedly connected to the output end of the air pump, the air guide pipe is fixedly connected to the end of the air-water separator away from the air pump, and the other end of the air guide pipe is connected to the vertical part of the oil guide pipe. An air valve is provided on the air guide pipe.

[0018] Furthermore, the air guide pipe is designed to be inclined downwards, and the connection between the air guide pipe and the oil guide pipe is located above the oil valve.

[0019] The beneficial effects of this utility model are:

[0020] By setting up an oil draining assembly consisting of an air pump, an air guide pipe, and an air-water separator, dry compressed air can be introduced into the yaw reducer. The air pressure is used to push the residual old oil out quickly, which solves the problems of incomplete old oil drainage and low efficiency of traditional oil change devices, avoids residual old oil from contaminating the new oil, and ensures the lubrication effect of the reducer.

[0021] The oil filling assembly (oil pump, oil guide pipe, hose) and the oil drain assembly share the oil guide pipe and hose passages, eliminating the need for frequent replacement of connecting pipes and simplifying the oil change process. By controlling the on / off state of the oil valve and air valve, the oil filling and draining modes can be quickly switched, improving the efficiency of oil change operations.

[0022] Both the oil storage tank and the oil collection tank are equipped with measuring cylinders on their outer sides, and the measuring cylinders are connected to the bottom of the tank body. This allows for a direct display of the amount of new oil injected and the amount of old oil recovered, enabling precise monitoring of the oil quantity during the oil change process and meeting the strict requirements of the yaw reducer for oil quantity. Attached Figure Description

[0023] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the overall structure of the oil storage tank of this utility model in cross-section;

[0026] Figure 3 This is a schematic diagram of the overall structure of the oil collection tank of this utility model in cross-section;

[0027] Figure 4 This is a schematic diagram of the connection between the oil injection component and the oil discharge component of this utility model;

[0028] In the picture:

[0029] 11. Base; 12. Top plate; 101. Casters;

[0030] 2. Oil storage tank; 21. Oil filling pipe; 22. Oil extraction pipe; 23. Measuring cylinder;

[0031] 3. Oil collection tank; 31. Oil inlet pipe; 32. Oil outlet pipe;

[0032] 41. Oil pump; 42. Oil guide pipe; 43. Hoses; 44. Oil valve; 45. Mounting bracket;

[0033] 51. Air pump; 52. Air pipe; 53. Air-water separator; 54. Air valve. Detailed Implementation

[0034] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0035] Please see Figure 1-4Figure 1 shows a technical solution provided by this utility model: an oil changing device for a wind power generation yaw reducer, including a base 11, which is a rectangular plate. Rollers 101 are installed at the four corners of the bottom of the base 11. An oil storage tank 2 is fixedly installed at the right end of the top of the base 11, and an oil collection tank 3 is fixedly installed at the left end of the top of the base 11. A top plate 12 is installed on the top of the oil storage tank 2 and the oil collection tank 3. Measuring cylinders 23 are installed on the outer sides of both the oil storage tank 2 and the oil collection tank 3, with the bottom ends of the measuring cylinders 23 communicating with the bottom of the inner cavities of the oil storage tank 2 and the oil collection tank 3, respectively. An oil suction pipe 22 is inserted through the top plate 12 into the top of the oil storage tank 2. A roller is installed at the right end of the top of the top plate 12. The top of the oil extraction pipe 22 is connected to the oil injection component, and an oil discharge component connected to it is installed above the oil injection component. The top of the oil collection tank 3 is fixedly installed with an oil inlet pipe 31 that penetrates the top plate 12. The base 11, oil storage tank 2, oil collection tank 3, top plate 12 and related pipeline components are integrated into one unit. The structure is compact, easy to move and operate as a whole, and adaptable to the working environment of the wind power generation site. The oil storage tank 2 and the oil collection tank 3 are responsible for storing new oil and recycling old oil, respectively. With the help of the measuring cylinder 23, the oil volume is visualized and managed, meeting the core requirement of "injecting new and discharging old" during the oil change process. The roller 101 design at the bottom of the base 11 allows the device to be moved flexibly to the vicinity of the yaw reducer, reducing the difficulty of on-site handling.

[0036] like Figure 2 As shown, an oil injection pipe 21, which is connected to the interior of the oil storage tank 2 and is inclined upwards, is fixedly installed at the upper position on the outside of the oil storage tank 2. The bottom end of the oil extraction pipe 22 extends to the bottom of the inner cavity of the oil storage tank 2 without contacting the bottom. The inclined oil injection pipe 21 on the outside of the oil storage tank 2 facilitates the rapid replenishment of new oil, reduces spillage during the oil pouring process, and improves the efficiency of adding new oil. The bottom end of the oil extraction pipe 22 extends to the bottom of the oil storage tank 2 without contacting the bottom of the tank, which can maximize the extraction of new oil in the tank and prevent impurities at the bottom of the tank from being sucked into the pipe, thus ensuring the cleanliness of the new oil.

[0037] like Figure 1 and Figure 3 As shown, an L-shaped drain pipe 32 is fixedly installed at the center of the bottom of the oil collection tank 3. The end of the drain pipe 32 away from the oil collection tank 3 extends out from the left end of the base 11. The L-shaped drain pipe 32 at the bottom of the oil collection tank 3 extends directly to the outside of the base 11, which facilitates the quick export of the recycled old oil to the external container, simplifies the old oil treatment process, and avoids secondary pollution.

[0038] like Figure 2 and Figure 4As shown, the oil injection assembly includes an oil pump 41, an oil guide pipe 42, and a hose 43. The oil pump 41 is fixedly installed on the top plate 12, and its input end is connected to the top end of the oil extraction pipe 22. The oil guide pipe 42 is L-shaped, and its horizontal end is connected to the output end of the oil pump 41. Both ends of the hose 43 are equipped with connectors, and one end of the hose 43 is threaded to the vertical end of the oil guide pipe 42. The other end of the hose 43 can be connected to the oil injection port on the yaw reducer. An oil valve 44 is provided on the vertical part of the oil guide pipe 42. The connectors at both ends of the hose 43 are designed to quickly connect to the reducer's oil injection port and the oil guide pipe 42, adapting to different models of yaw reducers and improving the versatility of the device. The oil valve 44 on the oil guide pipe 42 can control the start and stop of oil injection at any time, working with the oil pump 41 to achieve stable new oil delivery and avoid over- or under-injection of oil.

[0039] like Figure 4 As shown, a mounting bracket 45 covering the oil pump 41 is fixedly installed on the top of the top plate 12. The oil drain assembly is installed on the mounting bracket 45. The oil drain assembly includes an air pump 51, an air guide pipe 52, and an air-water separator 53. The air pump 51 is located on the top of the mounting bracket 45. The air-water separator 53 is fixedly connected to the output end of the air pump 51. The air guide pipe 52 is fixedly connected to the end of the air-water separator 53 away from the air pump 51, and the other end of the air guide pipe 52 is connected to the vertical part of the oil guide pipe 42. An air valve 54 is provided on the air guide pipe 52. The compressed air provided by the air pump 51 can push the residual old oil in the reducer to be completely discharged, solving the problem of incomplete traditional gravity oil draining and reducing the contamination of new oil by old oil. The air-water separator 53 removes moisture from the compressed air, preventing moisture from entering the reducer and causing oil emulsification or component corrosion, thus ensuring the safe operation of the equipment.

[0040] like Figure 4 As shown, the air guide pipe 52 is set to be inclined downwards, and the connection between the air guide pipe 52 and the oil guide pipe 42 is located above the oil valve 44. This can prevent oil from flowing back into the air guide pipe 52, avoid affecting the normal operation of pneumatic components such as the air pump 51, and at the same time ensure that the air pressure can effectively act on the oil discharge process.

[0041] Working principle:

[0042] S1. New oil is injected into the oil storage tank 2 through the inclined oil injection pipe 21 on the outside of the oil storage tank 2. The amount of oil injected can be visually observed through the measuring cylinder 23 on the outside of the oil storage tank 2.

[0043] S2. Use the rollers 101 at the bottom of the base 11 to move the device to the vicinity of the yaw reducer, ensuring that the hose 43 can be connected to the oil inlet of the reducer, and at the same time connect the oil inlet pipe 31 of the oil collection tank 3 to the oil outlet of the reducer (or guide the old oil into the oil inlet pipe 31 through the external pipeline).

[0044] S3. Connect the end of the hose 43 away from the oil guide pipe 42 to the oil inlet of the yaw reducer, close the oil valve 44 of the oil filling assembly, and open the air valve 54 of the oil drain assembly.

[0045] S4. Start the air pump 51 of the oil discharge assembly. After the compressed air is dehydrated by the air-water separator 53, it enters the oil guide pipe 42 through the downwardly inclined air guide pipe 52 (the connection is located above the oil valve 44), and then enters the yaw reducer through the hose 43.

[0046] S5. Compressed air creates air pressure inside the reducer, pushing the residual old oil out of the reducer's drain port and into the oil collection tank 3 through the oil inlet pipe 31. The measuring cylinder 23 on the outside of the oil collection tank 3 can display the amount of old oil recovered. The recovered old oil is finally discharged to an external container for processing through the L-shaped drain pipe 32.

[0047] S6. After the old oil is drained, close the air valve 54 of the drain assembly, stop the air pump 51, open the oil valve 44 of the oil injection assembly, and start the oil pump 41 of the oil injection assembly. The new oil in the oil storage tank 2 is drawn to the oil pump 41 through the oil extraction pipe 22 (the bottom end is close to the bottom of the tank but does not touch it to avoid sucking in impurities), and then transported to the oil injection port of the yaw reducer through the L-shaped oil guide pipe 42 and the hose 43. The amount of new oil reduction is observed through the measuring cylinder 23 on the outside of the oil storage tank 2. The injection amount is precisely controlled. After the preset oil amount is reached, the oil valve 44 and the oil pump 41 are closed to complete the oil injection.

[0048] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An oil changing device for a wind turbine yaw reducer, characterized in that, include: The base (11) is set as a rectangular plate, and rollers (101) are installed at the four corners of the bottom of the base (11); The oil storage tank (2) is fixedly installed on the right end of the top of the base (11); The oil collection tank (3) is fixedly installed on the left end of the top of the base (11); Top plate (12) is installed on top of oil storage tank (2) and oil collection tank (3); Two measuring cylinders (23) are provided and installed on the outside of the oil storage tank (2) and the oil collection tank (3) respectively, and the bottom of the measuring cylinder (23) is connected to the bottom of the inner cavity of the oil storage tank (2) and the oil collection tank (3) respectively; The oil extraction pipe (22) penetrates the top of the top plate (12) and the top of the oil storage tank (2); The oil injection assembly is installed on the right end of the top of the top plate (12) and connected to the top end of the oil extraction pipe (22), and an oil discharge assembly connected to it is installed above the oil injection assembly. The oil inlet pipe (31) passes through the top plate (12) and is connected to the top of the oil collection tank (3).

2. The oil changing device for a wind power generation yaw reducer according to claim 1, characterized in that, An oil injection pipe (21) is fixedly installed on the upper part of the outer side of the oil storage tank (2), which is connected to the interior and inclined upwards. The bottom end of the oil extraction pipe (22) extends to the bottom of the inner cavity of the oil storage tank (2) but does not contact the bottom of it.

3. The oil changing device for a wind power generation yaw reducer according to claim 1, characterized in that, An L-shaped oil drain pipe (32) is fixedly installed at the center of the bottom of the oil collection tank (3). The end of the oil drain pipe (32) away from the oil collection tank (3) extends out from the left end of the base (11).

4. The oil changing device for a wind power generation yaw reducer according to claim 1, characterized in that, The oil injection assembly includes an oil pump (41), an oil guide pipe (42), and a hose (43). The oil pump (41) is fixedly installed on the top plate (12), and the input end of the oil pump (41) is connected to the top end of the oil suction pipe (22). The oil guide pipe (42) is L-shaped, and the horizontal end of the oil guide pipe (42) is connected to the output end of the oil pump (41). Both ends of the hose (43) are provided with connectors, and the connector at one end of the hose (43) is threaded to the vertical end of the oil guide pipe (42). The connector at the other end of the hose (43) can be connected to the oil injection port on the yaw reducer. An oil valve (44) is provided on the vertical part of the oil guide pipe (42).

5. The oil changing device for a wind power generation yaw reducer according to claim 4, characterized in that, The top plate (12) is fixedly mounted with a mounting bracket (45) covering the outside of the oil pump (41). The oil discharge assembly is mounted on the mounting bracket (45). The oil discharge assembly includes an air pump (51), an air guide pipe (52), and an air-water separator (53). The air pump (51) is located on the top of the mounting bracket (45). The air-water separator (53) is fixedly connected to the output end of the air pump (51). The air guide pipe (52) is fixedly connected to the end of the air-water separator (53) away from the air pump (51), and the other end of the air guide pipe (52) is connected to the vertical part of the oil guide pipe (42). An air valve (54) is provided on the air guide pipe (52).

6. The oil changing device for a wind power generation yaw reducer according to claim 5, characterized in that, The air guide pipe (52) is set to be inclined downward, and the connection between the air guide pipe (52) and the oil guide pipe (42) is located above the oil valve (44).

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