A noise-reducing sliding bearing used in wind power equipment

Abstract

The present invention discloses a noise reduction sliding bearing applied to wind power equipment, and relates to the technical field of sliding bearings. The technical scheme thereof is as follows: it comprises a mounting seat, a bearing base and a bearing top seat are arranged on the surface of the mounting seat, a lower semicircular groove is arranged on the top of the bearing base, an upper semicircular groove is arranged on the bottom of the bearing top seat, bearing bushes are arranged in both the upper semicircular groove and the lower semicircular groove, the bearing bushes comprise a semicircular bearing bush body, an annular baffle is arranged on both sides of the outer surface of the bearing bush body, horizontally arranged end baffles are arranged at both ends of the bearing bush body, a sealed oil cavity is formed between the bearing bush and the upper semicircular groove, an oil filling groove is arranged on the bearing top seat, which runs through the top thereof and is connected to the oil cavity, a plurality of oil leakage holes are arranged on the bearing bush body located in the upper semicircular groove, and a pressurizing component for pressurizing the lubricating oil is arranged in the oil cavity. The purpose of the present invention is to provide a noise reduction sliding bearing applied to wind power equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of sliding bearings, and more specifically, to a noise-reducing sliding bearing used in wind power equipment. Background Art

[0002] Wind power equipment is equipment that uses wind energy to generate electricity or wind power. Wind power technology equipment is an important part of the wind power industry, and is also the foundation and guarantee for the development of the wind power industry. Bearings are used in wind power equipment, and bearings are important components for power transmission.

[0003] A Chinese patent with application number CN202010460903.3 discloses a noise-reducing sliding bearing used in wind power equipment, relating to the field of bearings, comprising a mounting seat, a bearing seat being fixed on the mounting seat, a removable bearing seat cover being fixed on the bearing seat, an upper arc-shaped fixing block being fixed on the inner side of the bearing seat cover, a lower arc-shaped fixing block matching the upper arc-shaped fixing block being fixed on the inner side of the bearing seat, an upper connecting shell being fixed on the inner side of the upper arc-shaped fixing block, a lower connecting shell opposite to the upper connecting shell being fixed on the inner side of the lower arc-shaped fixing block, an upper bearing shell being fixed to the upper connecting shell, a lower bearing shell matching the upper bearing shell being fixed on the inner side of the lower connecting shell, and oil chambers being provided between the upper connecting shell and the upper bearing shell, and between the lower bearing shell and the lower connecting shell.

[0004] The above technical solution can effectively reduce the noise intensity when the bearing is working, so that the noise reduction effect is good, the entire sliding bearing has a simple structure and low manufacturing cost. However, by introducing lubricating oil into the oil cavity, during the working process, the lubricating oil only relies on its own gravity to flow into the gap between the bearing shell and the shaft, and the lubricating oil may not fully enter between the bearing shell and the shaft, resulting in poor lubrication effect.

[0005] Therefore, a new technical solution is urgently needed to solve the above technical problems. Summary of the invention

[0006] In view of the deficiencies in the prior art, an object of the present invention is to provide a noise-reducing sliding bearing for use in wind power equipment.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions: a noise-reducing sliding bearing used in wind power equipment, comprising a mounting seat, a bearing base and a bearing top seat being arranged on the surface of the mounting seat, a lower semicircular groove being arranged on the top of the bearing base, an upper semicircular groove being arranged on the bottom of the bearing top seat, bearing bushings being arranged in both the upper semicircular groove and the lower semicircular groove, the bearing bushings comprising a semicircular bearing body, annular baffles being arranged on both sides of the outer surface of the bearing body, horizontally arranged end baffles being arranged at both ends of the bearing body, a sealed oil chamber being formed between the bearing bushing and the upper semicircular groove, an oil filling groove being arranged on the bearing top seat which passes through the top thereof and is connected to the oil chamber, a plurality of oil leakage holes being arranged on the bearing body located in the upper semicircular groove, and a pressurizing component for pressurizing the lubricating oil being arranged in the oil chamber.

[0008] By adopting the above technical solution, after the bearing top seat and the bearing base are installed and fixed, lubricating oil is injected into the oil chamber through the oil filling groove. During operation, the lubricating oil can smoothly enter between the bearing shell and the shaft body from the oil leakage hole by applying pressure, thereby effectively ensuring the lubrication effect on the shaft body.

[0009] The present invention is further configured as follows: the pressure assembly includes two pressure rings arranged on the outer surface of the bearing shell, the pressure rings divide the oil chamber into three independent closed spaces, the oil leakage hole is located between the two pressure rings, and also includes a driving member for controlling the relative or away movement of the two pressure rings.

[0010] The present invention is further configured as follows: a plurality of horizontally arranged connecting rods are fixedly connected between the two annular baffles, the pressure ring is provided with a through hole for the connecting rods to pass through and be slidably connected, the driving member includes a spring sleeved on the connecting rod, and the two ends of the spring are respectively fixedly connected to the pressure ring and the annular baffle.

[0011] The present invention is further configured as follows: a one-way injection valve is arranged at the top of the bearing top seat at the top of the oil filling groove.

[0012] The present invention is further configured as follows: both ends of the upper semicircular groove and the lower semicircular groove are provided with annular positioning grooves along their circumferential sides for the annular baffle to be inserted, a plurality of screw holes are provided at the bottom of the annular positioning groove along its circumferential direction, a plurality of through holes corresponding to the screw holes are provided on the outer surface of the annular baffle, and bolts are also provided in the through holes and the screw holes.

[0013] The present invention is further configured as follows: end plate positioning grooves connected to the annular positioning groove are provided at both ends of the upper semicircular groove and the lower semicircular groove, and one side of the end baffle is placed in the end plate positioning groove.

[0014] The present invention is further configured as follows: a seal is provided in the annular positioning groove and the end plate positioning groove, and the seal includes two annular sealing strips placed in the annular positioning groove, and end sealing strips are provided at both ends of the two annular sealing strips.

[0015] The present invention is further configured as follows: a semicircular ring-shaped sound insulation pad is arranged in a closed space formed between the lower semicircular groove and the bearing bush.

[0016] The present invention has the following beneficial effects: 1. After the bearing top seat and the bearing base are installed and fixed, lubricating oil is injected into the oil cavity through the oil filling groove. When working, the lubricating oil can smoothly enter between the bearing bushing and the shaft body from the oil leakage hole by pressurizing, thereby effectively ensuring the lubrication effect on the shaft body.

[0017] 2. Lubricating oil and sound insulation pads are coated on the outer surfaces of the two bearing shells to achieve better sound insulation and noise reduction effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the three-dimensional structure of this embodiment;

[0019] Figure 2 is a schematic cross-sectional structural diagram of this embodiment;

[0020] Figure 3 This is a schematic diagram of the structure of the bearing body located in the upper semicircular groove of this embodiment;

[0021] Figure 4 It is a schematic diagram of the explosion structure of this embodiment.

[0022] Description of the drawings: 1. Mounting seat; 2. Bearing base; 3. Bearing top seat; 4. Bearing bushing; 401. Bearing bushing body; 402. Annular baffle; 403. End baffle; 5. Oil chamber; 6. Oil filling groove; 7. Oil leakage hole; 8. Pressurizing ring; 9. Connecting rod; 10. Spring; 11. One-way injection valve; 12. Annular positioning groove; 13. Screw hole; 14. Through hole; 15. Bolt; 16. End plate positioning groove; 17. Seal; 1701. Annular sealing strip; 1702. End sealing strip; 18. Sound insulation pad. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0024] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0025] As shown in the figure, a noise reduction sliding bearing used in wind power equipment includes a mounting seat 1, a bearing base 2 is arranged on the surface of the mounting seat 1, a bearing top seat 3 is detachably connected to the bearing base 2, a lower semicircular groove is opened on the top of the bearing base 2, an upper semicircular groove is opened on the bottom of the bearing top seat 3, and bearing bushings 4 are arranged in the upper and lower semicircular grooves. The bearing bushings 4 include a semicircular bearing body 401, annular baffles 402 are arranged on both sides of the outer surface of the bearing body 401, and horizontally arranged end baffles 403 are arranged at both ends of the bearing body 401. A sealed oil chamber 5 is formed between the bearing bushing 4 and the upper semicircular groove, the bearing top seat 3 is provided with an oil filling groove 6 that runs through the top thereof and is connected to the oil chamber 5, the bearing body 401 located in the upper semicircular groove is provided with a plurality of oil leakage holes 7, and a pressurizing component for pressurizing the lubricating oil is arranged in the oil chamber 5.

[0026] After the bearing top seat 3 and the bearing base 2 are installed and fixed, lubricating oil is injected into the oil chamber 5 through the oil filling groove 6. During operation, as the lubricating oil between the bearing and the main shaft is consumed, the lubricating oil can continuously enter between the bearing 4 and the shaft body from the oil leakage hole 7 through the pressure component, thereby effectively ensuring the lubrication effect on the shaft body. The oil chamber is semicircular and covers the outer side of the upper bearing, and the lubricating oil inside it can achieve a certain sound insulation and noise reduction effect.

[0027] The pressurizing assembly includes two pressurizing rings 8 arranged on the outer surface of the bearing shell, and the pressurizing rings 8 divide the oil chamber 5 into three independent closed spaces. The oil leakage hole 7 is located between the two pressurizing rings, and also includes a driving member for controlling the relative or distant movement of the two pressurizing rings. A plurality of horizontally arranged connecting rods 9 are fixedly connected between the two annular baffles 402. The pressurizing ring 8 has a through hole for the connecting rod 9 to pass through and slide. The driving member includes a spring 10 sleeved on the connecting rod 9, and the two ends of the spring 10 are respectively fixedly connected to the pressurizing ring and the annular baffle 402.

[0028] The oil filling groove 6 is located between the two annular baffles 402. When the lubricating oil is injected, the lubricating oil falls into the space between the two pressure rings. Under the action of continuous injection of the lubricating oil, the two pressure rings are pushed to move toward both sides, and the spring 10 is compressed. Therefore, after the oil filling is completed, under the action of the elastic force of the spring 10, the two pressure rings tend to move relative to each other. When the lubricating oil between the shaft body and the bearing body is continuously consumed, under the squeezing action of the two pressure rings, the lubricating oil is effectively replenished through the oil leakage hole 7 to ensure its lubrication effect.

[0029] A one-way injection valve 11 is provided at the top of the bearing top seat 3 at the top end of the oil filling groove 6 to prevent the lubricating oil from leaking out of the oil filling groove 6 after the oil filling is completed.

[0030] An annular positioning groove 12 for inserting the annular baffle 402 is provided at both ends of the upper and lower semicircular grooves along their circumferential sides, a plurality of screw holes 13 are provided at the bottom of the annular positioning groove 12 along its circumferential direction, a plurality of through holes 14 corresponding to the screw holes 13 are provided on the outer surface of the annular baffle 402, and bolts 15 are provided in the through holes 14 and the screw holes 13. An end plate positioning groove 16 connected to the annular positioning groove 12 is provided at both ends of the upper and lower semicircular grooves, and one side of the end baffle 403 is placed in the end plate positioning groove 16. The annular positioning groove 12 and the end plate positioning groove 16 are used to position and install the bearing bush 4, and ensure the sealing of the bearing bush 4 after installation.

[0031] The annular positioning groove 12 and the end plate positioning groove 16 are provided with a seal 17, which includes two annular sealing strips 1701 placed in the annular positioning groove 12, and end sealing strips 1702 are provided at both ends of the two annular sealing strips 1701 to further improve the sealing performance of the bearing bush 4 after installation.

[0032] A semicircular sound insulation pad 18 is arranged in the closed space formed between the lower semicircular groove and the bearing shell 4 to reduce the noise of the bearing shell located below, thereby achieving a better sound insulation and noise reduction effect on the bearing in cooperation with the lubricating oil in the oil chamber.

[0033] The specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, such modifications are protected by the patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A noise-reducing sliding bearing for use in wind power equipment, comprising a mounting seat (1), wherein a bearing base (2) and a bearing top seat (3) are arranged on the surface of the mounting seat (1), characterized in that: The top of the bearing base (2) is provided with a lower semicircular groove, the bottom of the bearing top seat (3) is provided with an upper semicircular groove, and bearing bushings (4) are arranged in both the upper semicircular groove and the lower semicircular groove, and the bearing bushings (4) include a semicircular ring-shaped bearing bushing body (401), annular baffles (402) are arranged on both sides of the outer surface of the bearing bushing body (401), and horizontally arranged end baffles (403) are arranged at both ends of the bearing bushing body (401), and a sealed oil cavity (5) is formed between the bearing bushing (4) and the upper semicircular groove, and the bearing top seat (3) is provided with an oil filling groove (6) that passes through the top thereof and is connected to the oil cavity (5), and the bearing bushing body (401) located in the upper semicircular groove is provided with a plurality of oil leakage holes (7), and a pressurizing component for pressurizing lubricating oil is arranged in the oil cavity (5); The pressurizing assembly comprises two pressurizing rings (8) arranged on the outer surface of the bearing body (401), the pressurizing rings (8) dividing the oil chamber (5) into three independent closed spaces, the oil leakage hole (7) being located between the two pressurizing rings (8), and also comprising a driving member for controlling the relative or distant movement of the two pressurizing rings (8); A plurality of horizontally arranged connecting rods (9) are fixedly connected between the two annular baffles (402); the pressure ring (8) is provided with through holes for the connecting rods (9) to pass through and be slidably connected; the driving member comprises a spring (10) sleeved on the connecting rods (9); two ends of the spring (10) are respectively fixedly connected to the pressure ring (8) and the annular baffle (402).

2. The noise reduction sliding bearing used for wind power equipment according to claim 1, characterized in that: A one-way injection valve (11) is provided at the top of the bearing top seat (3) at the top of the oil injection groove (6).

3. The noise reduction sliding bearing used for wind power equipment according to claim 2, characterized in that: An annular positioning groove (12) for inserting the annular baffle (402) is formed along the circumference of both ends of the upper semicircular groove and the lower semicircular groove, and a plurality of screw holes (13) are formed at the bottom of the annular positioning groove (12) along the circumferential direction thereof, and a plurality of through holes (14) corresponding to the screw holes (13) are formed on the outer surface of the annular baffle (402), and bolts (15) are also provided in the through holes (14) and the screw holes (13).

4. The noise reduction sliding bearing used for wind power equipment according to claim 3, characterized in that: End plate positioning grooves (16) connected to the annular positioning groove (12) are provided at both ends of the upper semicircular groove and the lower semicircular groove, and one side of the end baffle plate (403) is placed in the end plate positioning groove (16).

5. The noise reduction sliding bearing used for wind power equipment according to claim 4, characterized in that: A sealing member (17) is provided in the annular positioning groove (12) and the end plate positioning groove (16), and the sealing member (17) comprises two annular sealing strips (1701) disposed in the annular positioning groove (12), and end sealing strips (1702) are provided at both ends of the two annular sealing strips (1701).

6. The noise reduction sliding bearing used for wind power equipment according to claim 1, characterized in that: A semicircular ring-shaped sound insulation pad (18) is arranged in a closed space formed between the lower semicircular groove and the bearing bush (4).

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