A kind of wind power generator main shaft lubrication structure

Abstract

The utility model relates to lubricating equipment technical field discloses a kind of generator main shaft lubricating structures for wind power, including motor shell, the bearing of the outer surface of motor shell is fixedly installed with the central position close, and the inner ring part of bearing is fixedly installed with rotating shaft, the upper surface of bearing is connected with oil delivery assembly, bearing outside is provided with the outer surface fixed installation protective housing of motor shell, protective housing inside is provided with the cleaning mechanism for cleaning excess lubricating oil, cleaning mechanism includes the adjusting sliding frame slidingly connected with the inner cavity side wall surface of protective housing and the contact pad fixedly installed with the bottom end of adjusting sliding frame, the top of protective housing is provided with the voice coil motor for driving adjusting sliding frame up and down, protective housing inner cavity wall surface bottom is provided with liquid-collecting groove. The utility model improves the cleaning and recycling effect of excess lubricating oil of the equipment by setting cleaning mechanism, improves the practicability of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of lubrication equipment technology, and in particular to a lubrication structure for the main shaft of a wind power generator. Background Technology

[0002] A search revealed that application number 202220028548.7 discloses a lubrication structure for the main shaft of a wind power generator, including a motor housing. A bearing is fixedly installed on the outer surface of the motor housing near the center position. A shaft is fixedly installed on the inner ring of the bearing. A first housing is fixedly installed on one side surface of the motor housing, and a second housing is fixedly installed on the other side surface of the motor housing. An oil tank is provided on the outer surface of the motor housing, and an oil delivery pipe is provided on the outer surface of the oil tank. An oil delivery pump is provided on the oil delivery pipe. A power supply is fixedly installed on the front surface of the oil tank, and a first fixing block is fixedly installed on the outer surface of the first housing.

[0003] The wind turbine generator main shaft lubrication structure in this patent application uses a voice coil motor and a pressing block to drive a contact pad to contact the outer wall of the shaft, scraping off the lubricating oil on the shaft. Excess lubricating oil flows from the second connecting pipe and the first connecting pipe into a storage tank for recycling. However, in this process, because the bottom of the device's outer casing needs to be perforated to allow the pressing block to pass through, when excess lubricating oil accumulates at the bottom of the inner cavity of the outer casing, the lubricating oil can easily seep out through the gap between the perforation and the pressing block, causing contamination and reducing the practicality of the device. Therefore, we propose a wind turbine generator main shaft lubrication structure. Utility Model Content

[0004] The present invention aims to solve the technical problems existing in the prior art and provide a lubrication structure for the main shaft of a wind power generator.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a lubrication structure for the main shaft of a wind power generator, comprising a motor housing, a bearing fixedly installed near the center of the outer surface of the motor housing, and a rotating shaft fixedly installed with the inner ring of the bearing. An oil supply assembly is connected to the upper surface of the bearing. A protective housing is fixedly installed on the outer side of the bearing and attached to the outer surface of the motor housing. A cleaning mechanism for removing excess lubricating oil is provided inside the protective housing. The cleaning mechanism includes an adjusting slide frame slidably connected to the inner wall of the protective housing and a contact pad fixedly installed at the bottom end of the adjusting slide frame. A voice coil motor for driving the adjusting slide frame to move up and down is provided at the top of the protective housing. A liquid collection groove is formed at the bottom of the inner wall of the protective housing. An oil drain pipe connected to the bottom end of the liquid collection groove is fixedly installed at the bottom end of the protective housing. A storage box is connected to the bottom end of the oil drain pipe.

[0006] Furthermore, the protective housing is fixedly installed to the outer surface of the motor housing by bolts and nuts.

[0007] Furthermore, an oil inlet pipe is fixedly installed on the upper surface of the bearing.

[0008] Furthermore, the end of the oil inlet pipe furthest from the bearing is connected to the oil delivery assembly.

[0009] Furthermore, the voice coil motor is fixedly installed on the top exterior of the protective housing.

[0010] Furthermore, the telescopic end of the voice coil motor extends into the inner cavity of the protective housing and is fixedly installed with the top of the adjusting slide frame.

[0011] Furthermore, the left and right side walls of the adjusting slide frame are symmetrically provided with linear through grooves.

[0012] Furthermore, two T-shaped limiting sliding pillars are slidably connected inside the two linear through slots.

[0013] Furthermore, one end of each of the two limiting sliding pins is fixedly connected to the inner wall of the protective housing.

[0014] This utility model provides a lubrication structure for the main shaft of a wind turbine generator. It has the following beneficial effects:

[0015] 1. This wind power generator main shaft lubrication structure, through the inclusion of a cleaning mechanism, allows lubricating oil to be added to the bearing via an oil inlet pipe during use. When excessive lubricating oil overflows and adheres to the outer wall of the shaft, the extension end of the voice coil motor contracts, causing the adjusting slide frame to move upward. The limiting slide post, through its sliding connection with the linear through groove, provides a vertical limiting and guiding effect to the adjusting slide frame. The adjusting slide frame then moves the contact pad upward to contact the outer wall of the shaft, scraping off the lubricating oil as the shaft rotates. The liquid-collecting groove is located at the bottom of the protective housing cavity. The lubricating oil is drawn into the liquid collection groove by its own gravity and then flows into the storage tank through the oil drain pipe for collection. This solves the problem of not being able to recover lubricating oil when too much is added. The protective shell also blocks excess lubricating oil, preventing it from easily spilling into the generator and affecting internal components as the main shaft rotates. Furthermore, the voice coil motor is located at the top of the protective shell, preventing lubricating oil leakage. The operation is simple and practical, the structure is reasonable and compact, improving the cleaning and recovery effect of excess lubricating oil and enhancing the equipment's practicality. Attached Figure Description

[0016] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0017] 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 proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0018] Figure 1 This is a schematic diagram of the main shaft lubrication structure for a wind power generator according to this utility model.

[0019] Figure 2 This is an exploded view of the main shaft lubrication structure for a wind turbine generator according to this utility model;

[0020] Figure 3 This is a cross-sectional view of the main shaft lubrication structure for a wind turbine generator according to this utility model;

[0021] Figure 4 for Figure 1 An enlarged diagram of A in the diagram.

[0022] Legend:

[0023] 10. Motor housing; 11. Bearing; 13. Shaft; 14. Oil supply assembly; 15. Oil inlet pipe; 16. Protective housing; 17. Adjusting slide frame; 171. Linear through groove; 172. Limiting slide column; 18. Contact pad; 19. Voice coil motor; 20. Liquid collection groove; 21. Oil drain pipe; 22. Storage box. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] A lubrication structure for the main shaft of a wind turbine generator, such as Figure 1-4As shown, the device includes a motor housing 10, a bearing 11 fixedly mounted near the center of the outer surface of the motor housing 10, and a rotating shaft 13 fixedly mounted to the inner ring of the bearing 11. An oil supply assembly 14 is connected to the upper surface of the bearing 11. The oil supply assembly 14 is existing technology and will not be described in detail. A protective housing 16 is fixedly mounted to the outer surface of the motor housing 10 on the outside of the bearing 11. A cleaning mechanism for removing excess lubricating oil is provided inside the protective housing 16. The cleaning mechanism includes an adjusting slide frame 17 slidably connected to the inner wall of the protective housing 16 and a contact pad 18 fixedly mounted to the bottom end of the adjusting slide frame 17. A voice coil motor 19 for driving the adjusting slide frame 17 up and down is provided at the top of the protective housing 16. A liquid-gathering groove 20 is formed at the bottom of the inner wall of the protective housing 16. An oil drain pipe 21, which communicates with the bottom of the liquid-collecting groove 20, is fixedly installed at the bottom. A storage box 22 is connected to the bottom of the oil drain pipe 21. The protective shell 16 is fixedly installed to the outer surface of the motor shell 10 by bolts and nuts. An oil inlet pipe 15 is fixedly installed on the upper surface of the bearing 11. The end of the oil inlet pipe 15 away from the bearing 11 is connected to the oil delivery assembly 14. The voice coil motor 19 is fixedly installed to the top of the protective shell 16. The telescopic end of the voice coil motor 19 extends into the inner cavity of the protective shell 16 and is fixedly installed to the top of the adjusting slide frame 17. Linear through grooves 171 are symmetrically opened on the left and right side walls of the adjusting slide frame 17. Two T-shaped limiting slide columns 172 are slidably connected inside the two linear through grooves 171. One end of the two limiting slide columns 172 is fixedly connected to the side wall of the inner cavity of the protective shell 16.

[0026] The working principle of this utility model is as follows: During use, lubricating oil can be added to the bearing 11 through the oil inlet pipe 15 using the oil supply component 14. When too much lubricating oil overflows and adheres to the outer wall of the rotating shaft 13, the extension end of the voice coil motor 19 is controlled to contract, causing the adjusting slide frame 17 to move upward. The limiting slide post 172, through its sliding connection with the linear through groove 171, forms a limiting and guiding effect on the adjusting slide frame 17 in the vertical direction. The adjusting slide frame 17 then causes the contact pad 18 to move upward and contact the outer wall of the rotating shaft 13. In conjunction with the rotation of the rotating shaft 13, the lubricating oil on the outer wall of the rotating shaft 13 is scraped off. Since the liquid collection groove 20 is opened at the bottom of the inner cavity of the protective shell 16, At the designated location, the lubricating oil, under its own gravity, gathers inside the liquid collection groove 20 and flows into the storage tank 22 through the oil drain pipe 21 for collection. This solves the problem of not being able to recover lubricating oil when too much is added. Furthermore, the protective shell 16 blocks the lubricating oil, preventing excess lubricating oil from easily spilling into the generator and affecting internal components as the main shaft rotates. Since the voice coil motor 19 is located at the top of the protective shell 16, lubricating oil leakage is prevented. The above operation is simple and practical, and the structure is reasonable and compact, improving the cleaning and recovery effect of excess lubricating oil and enhancing the practicality of the equipment.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A lubrication structure for the main shaft of a wind turbine generator, comprising a motor housing (10), a bearing (11) fixedly mounted near the center of the outer surface of the motor housing (10), and a rotating shaft (13) fixedly mounted to the inner ring portion of the bearing (11), wherein an oil supply assembly (14) is connected to the upper surface of the bearing (11), characterized in that: The bearing (11) is provided with a protective shell (16) fixedly installed on the outer surface of the motor housing (10). The protective shell (16) is provided with a cleaning mechanism for cleaning excess lubricating oil. The cleaning mechanism includes an adjusting slide frame (17) slidably connected to the inner wall of the protective shell (16) and a contact pad (18) fixedly installed at the bottom end of the adjusting slide frame (17). The top of the protective shell (16) is provided with a voice coil motor (19) for driving the adjusting slide frame (17) to move up and down. The bottom of the inner wall of the protective shell (16) is provided with a liquid collection groove (20). The bottom end of the protective shell (16) is fixedly installed with an oil drain pipe (21) communicating with the bottom end of the liquid collection groove (20). The bottom end of the oil drain pipe (21) is connected to a storage box (22).

2. The generator main shaft lubrication structure for wind power according to claim 1, characterized by: The protective housing (16) is fixedly installed to the outer surface of the motor housing (10) by bolts and nuts.

3. The generator main shaft lubrication structure for wind power according to claim 1, characterized by: An oil inlet pipe (15) is fixedly installed on the upper surface of the bearing (11), and the end of the oil inlet pipe (15) away from the bearing (11) is connected to the oil delivery assembly (14).

4. The wind turbine generator main shaft lubrication structure according to claim 1, characterized in that: The voice coil motor (19) is fixedly installed on the top exterior of the protective housing (16), and the telescopic end of the voice coil motor (19) extends into the inner cavity of the protective housing (16) and is fixedly installed on the top of the adjusting slide frame (17).

5. The wind turbine generator main shaft lubrication structure according to claim 1, characterized in that: The left and right sides of the adjusting slide frame (17) are symmetrically provided with linear through grooves (171). Two T-shaped limiting slides (172) are slidably connected inside the two linear through grooves (171). One end of the two limiting slides (172) is fixedly connected to the inner wall of the protective shell (16).

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