Automatic oil injection device for yaw bearing

Abstract

The utility model discloses an automatic oiling device for yaw bearings, and particularly relates to the technical field of yaw bearings, the automatic oiling device comprises an oil tank, an oil pump and a first through pipe, the input end of the oil pump extends into the oil tank, the oil pump is fixedly connected with the oil tank, the bottom end of the first through pipe is fixedly communicated with the output end of the oil pump, and one side of the first through pipe is provided with a connecting assembly; the connecting assembly comprises a second through pipe, a first valve and a second valve. The top end of the second through pipe is fixedly connected with a filter box. Lubricating oil in the oil tank is extracted through operation of the oil pump, the gasket and the stand column are extruded by the lubricating oil and move upwards, so that the two springs are driven to stretch, finally, the lubricating oil is injected into the yaw bearing through the connecting pipe, and when the lubricating oil is not injected, the two springs rebound to drive the two side plates to move downwards, so that the yaw bearing is protected. The yaw bearing is simple in structure, and the lubricating oil in the yaw bearing is effectively prevented from flowing back.

Description

Technical Field

[0001] This utility model relates to the field of yaw bearing technology, and more specifically, to an automatic lubrication device for yaw bearings. Background Technology

[0002] A yaw bearing is a large bearing used in the yaw system of a wind turbine. It is usually installed between the nacelle and the tower of the wind turbine. Its main function is to support the nacelle of the wind turbine and enable the nacelle to rotate 360 ​​degrees around the vertical axis of the tower. This allows the wind turbine rotor to adjust its direction in a timely manner according to changes in wind direction, always maintaining a windward orientation to maximize wind energy capture and improve power generation efficiency. Lubrication of the yaw bearing is mainly for purposes such as reducing friction, reducing wear, preventing corrosion, buffering and shock absorption, and assisting in heat dissipation.

[0003] A search revealed that Chinese Patent CN218001121U discloses an automatic bearing oiling device. This utility model has a simple structure, is easy to operate, and has high oiling efficiency. By pushing the base, the device can be moved to the place where oiling is needed, saving time and effort. Starting the oil pump can simultaneously supply oil to multiple oil pipes. The oiling pipes on the base are respectively inserted into the oiling holes of the bearing holes, enabling uninterrupted oiling of multiple bearings, improving oiling efficiency, and ensuring a stable and reliable oil supply. This achieves automated oiling, reducing the labor intensity of workers. By placing a filter bucket in the oil storage tank to remove impurities from the oil, the oiling quality is improved. On the other hand, a fixing sleeve is wrapped around the upper part of the injection head to prevent the injection head from falling off.

[0004] When the above-mentioned oil injection device is in use, it delivers lubricating oil to multiple injection heads through annular oil pipes to simultaneously inject oil into multiple bearings. However, during the oil injection process, the lubricating oil in the bearings is prone to flow back into the oil pipes. During the operation of the bearings, metal shavings, dust and other impurities are generated. When this lubricating oil with impurities returns to the oil pump, it will cause wear and blockage to the internal components of the oil pump, affecting the normal operation of the oil pump. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an automatic lubrication device for yaw bearings, which aims to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic yaw bearing oil injection device, comprising an oil tank, an oil pump, and a first connecting pipe. The input end of the oil pump extends into the interior of the oil tank and is fixedly connected to the oil tank. The bottom end of the first connecting pipe is fixedly connected to the output end of the oil pump. A connecting assembly is provided on one side of the first connecting pipe. The connecting assembly includes a second connecting pipe, a first valve, and a second valve. A filter box is fixedly connected to the top end of the second connecting pipe. A connecting pipe is fixedly connected to the top end of the filter box. A partition is fixedly connected inside the filter box. A blocking assembly is provided on the top of the partition. The blocking assembly includes a baffle, a column, a gasket, two side plates, and two springs. The top end of the column is fixedly connected to the baffle. The top end of the gasket is fixedly connected to the column. The opposing sides of the two side plates are fixedly connected to the baffle, and the bottom ends of the two side plates are respectively fixedly connected to the two springs. The bottom ends of the two springs are fixedly connected to the partition.

[0007] Furthermore, two sliding rods are fixedly connected to the top of the partition, and the tops of the two sliding rods pass through the two side plates and two springs respectively.

[0008] As can be seen, in the above technical solution, the two sliding rods can limit the deflection that occurs when the two side plates move vertically.

[0009] Furthermore, a piston is threadedly connected to the front side of the filter box, wherein the piston serves to facilitate the discharge of oil from the filter box.

[0010] Furthermore, a filter screen plate is movably installed inside the filter box and at the bottom of the partition. Two limiting plates are provided at the top and bottom of the filter screen plate, and one side of each limiting plate is fixedly connected to the filter box.

[0011] As can be seen, in the above technical solution, the filter screen can filter the lubricating oil.

[0012] Furthermore, a sealing cover is movably provided on the front side of the filter plate, and the sealing cover is locked to the filter box by a snap fastener.

[0013] As can be seen, in the above technical solution, the sealing cover is opened and the filter screen plate inside the filter box is taken out, and the filter screen plate is installed in the same way.

[0014] Furthermore, one end of the second pipe is fixed to the first pipe by bolts, and both the first valve and the second valve are fixedly installed on the second pipe.

[0015] Furthermore, a flow meter is provided on the top of the first valve, and the flow meter is fixedly installed on the second pipe.

[0016] As can be seen, the above technical solution is designed to facilitate the observation of lubricating oil flow rate.

[0017] The technical effects and advantages of this utility model are as follows:

[0018] 1. This utility model uses an oil pump to draw lubricating oil from the oil tank and injects it into the filter box through the first and second pipes. The lubricating oil squeezes the gasket and column and moves them upward, thereby stretching the two springs. Finally, the lubricating oil is injected into the yaw bearing through the connecting pipe. When no lubricating oil is injected, the two springs rebound and move the two side plates downward, preventing the lubricating oil from passing through the partition and entering the second pipe. The structure is simple and effectively prevents the lubricating oil in the yaw bearing from flowing back.

[0019] 2. This utility model connects the second pipe to the first pipe with bolts. Similarly, another second pipe is installed at the other end of the second pipe. By cyclically installing multiple second pipes, multiple yaw bearings can be automatically lubricated. Closing the first valve prevents lubricating oil from entering the filter box through the second pipe, and closing the second valve prevents lubricating oil from entering another filter box through the second pipe. The flow rate of the lubricating oil can be observed through a flow meter. The structure is simple and easy to use. Attached Figure Description

[0020] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the assembly structure of the filter box and sealing cover of this utility model;

[0023] Figure 3 This is a cross-sectional view of the filter box and the filter screen plate of this utility model, showing their assembly structure.

[0024] Figure 4 This is a cross-sectional view of the filter box and a schematic diagram of the connecting pipe assembly structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the barrier component structure of this utility model.

[0026] In the diagram: 1. Oil tank; 2. Oil pump; 3. First through pipe; 4. Connecting assembly; 5. Filter box; 6. Connecting pipe; 7. Piston; 8. Sealing cap; 9. Barrier assembly; 10. Partition plate; 11. Filter screen plate; 12. Limiting plate; 401. Second through pipe; 402. First valve; 403. Second valve; 404. Flow meter; 901. Baffle plate; 902. Column; 903. Gasket; 904. Side plate; 905. Spring; 906. Slide rod. Detailed Implementation

[0027] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] Refer to the instruction manual appendix Figure 1-5 This embodiment of an automatic yaw bearing lubrication device includes an oil tank 1, an oil pump 2, and a first connecting pipe 3. The input end of the oil pump 2 extends into the interior of the oil tank 1 and is fixedly connected to the oil tank 1. The bottom end of the first connecting pipe 3 is fixedly connected to the output end of the oil pump 2. A connecting assembly 4 is provided on one side of the first connecting pipe 3. The connecting assembly 4 includes a second connecting pipe 401, a first valve 402, and a second valve 403. A filter box 5 is fixedly connected to the top end of the second connecting pipe 401. A connecting pipe 6 is fixedly connected to the top end of the filter box 5. The filter box 5 contains... A partition 10 is fixedly connected to the partition 10. A barrier component 9 is provided on the top of the partition 10. The barrier component 9 includes a baffle 901, a column 902, a gasket 903, two side plates 904 and two springs 905. The top of the column 902 is fixedly connected to the baffle 901, the top of the gasket 903 is fixedly connected to the column 902, the opposite sides of the two side plates 904 are fixedly connected to the baffle 901, and the bottom ends of the two side plates 904 are fixedly connected to the two springs 905 respectively. The bottom ends of the two springs 905 are fixedly connected to the partition 10.

[0029] Furthermore, two slide rods 906 are fixedly connected to the top of the partition 10, and the tops of the two slide rods 906 respectively pass through the two side plates 904 and the two springs 905.

[0030] Furthermore, a piston 7 is threadedly connected to the front side of the filter box 5, wherein the piston 7 serves to facilitate the discharge of oil from the filter box 5.

[0031] Furthermore, a filter screen plate 11 is movably arranged inside the filter box 5 and at the bottom of the partition 10. Two limiting plates 12 are provided at the top and bottom of the filter screen plate 11, and one side of each of the multiple limiting plates 12 is fixedly connected to the filter box 5. A sealing cover 8 is movably arranged on the front side of the filter screen plate 11, and the sealing cover 8 is locked to the filter box 5 by a snap fastener.

[0032] Furthermore, one end of the second pipe 401 is fixed to the first pipe 3 by bolts. The first valve 402 and the second valve 403 are both fixedly installed on the second pipe 401. A flow meter 404 is provided on the top of the first valve 402, and the flow meter 404 is fixedly installed on the second pipe 401.

[0033] The second pipe 401 is connected to the first pipe 3 by bolts. Similarly, another second pipe 401 is installed at the other end of the second pipe 401. Multiple second pipes 401 are installed in this cyclical manner, which can automatically lubricate multiple yaw bearings. Closing the first valve 402 prevents lubricating oil from entering the filter box 5 through the second pipe 401. Closing the second valve 403 prevents lubricating oil from entering another filter box 5 through the second pipe 401. The flow rate of lubricating oil can be observed through the flow meter 404. The structure is simple and easy to use. At the same time, the filter screen plate 11 can filter the lubricating oil. Open the sealing cover 8 and take out the filter screen plate 11 from the filter box 5. Similarly, the filter screen plate 11 is installed. The four limit plates 12 can limit the deflection of the filter screen plate 11.

[0034] The usage method of this embodiment is as follows:

[0035] In use, the connecting pipe 6 is fixed to the oil inlet of the yaw bearing with bolts. The oil pump 2 is started, and the oil pump 2 draws lubricating oil from the oil tank 1 and injects it into the filter box 5 through the first pipe 3 and the second pipe 401. The lubricating oil squeezes the gasket 903 and the column 902 and moves them upward, thereby driving the two side plates 904 to move upward, which in turn drives the two springs 905 to stretch. Finally, the lubricating oil is injected into the yaw bearing through the connecting pipe 6. When no lubricating oil is injected, the two springs 905 rebound and drive the two side plates 904 to move downward, so that the lubricating oil cannot pass through the partition 10 and enter the second pipe 401. At the same time, the two sliding rods 906 can limit the deflection of the two side plates 904 when they move vertically. The structure is simple and effectively prevents the lubricating oil in the yaw bearing from flowing back. Rotating the piston 7 and moving it away from the filter box 5 can discharge the waste oil in the filter box 5.

[0036] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic oiling device for a yaw bearing, comprising an oil tank (1), an oil pump (2), and a first connecting pipe (3), wherein the input end of the oil pump (2) extends into the interior of the oil tank (1) and is fixedly connected to the oil tank (1), and the bottom end of the first connecting pipe (3) is fixedly connected to the output end of the oil pump (2), characterized in that: A connecting assembly (4) is provided on one side of the first through pipe (3). The connecting assembly (4) includes a second through pipe (401), a first valve (402), and a second valve (403). A filter box (5) is fixedly connected to the top end of the second through pipe (401). A connecting pipe (6) is fixedly connected to the top end of the filter box (5). A partition (10) is fixedly connected inside the filter box (5). A barrier assembly (9) is provided on the top of the partition (10). The barrier assembly (9) includes a baffle (901). The structure consists of a column (902), a gasket (903), two side plates (904), and two springs (905). The top of the column (902) is fixedly connected to the baffle (901), the top of the gasket (903) is fixedly connected to the column (902), the two side plates (904) are fixedly connected to the baffle (901) on opposite sides, and the bottom of the two side plates (904) is fixedly connected to the two springs (905) respectively. The bottom of the two springs (905) is fixedly connected to the partition (10).

2. The automatic lubrication device for a yaw bearing according to claim 1, characterized in that: The top of the partition (10) is fixedly connected to two slide rods (906), and the tops of the two slide rods (906) pass through the two side plates (904) and the two springs (905), respectively.

3. The automatic lubrication device for a yaw bearing according to claim 1, characterized in that: The filter box (5) is threadedly connected to a piston (7) on the front side, wherein the piston (7) facilitates the discharge of oil from the filter box (5).

4. The automatic lubrication device for a yaw bearing according to claim 1, characterized in that: Inside the filter box (5) and at the bottom of the partition (10), a filter screen plate (11) is movably arranged. Two limiting plates (12) are provided at the top and bottom of the filter screen plate (11), and one side of each of the multiple limiting plates (12) is fixedly connected to the filter box (5).

5. The automatic lubrication device for a yaw bearing according to claim 4, characterized in that: The front side of the filter plate (11) is provided with a sealing cover (8), and the sealing cover (8) is locked to the filter box (5) by a buckle.

6. The automatic lubrication device for a yaw bearing according to claim 1, characterized in that: One end of the second pipe (401) is fixed to the first pipe (3) by bolts, and the first valve (402) and the second valve (403) are both fixedly installed on the second pipe (401).

7. The automatic lubrication device for a yaw bearing according to claim 1, characterized in that: A flow meter (404) is provided on the top of the first valve (402), and the flow meter (404) is fixedly installed on the second pipe (401).

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