Low-noise resin bearing for wind wheel

Abstract

The utility model relates to the technical field of bearings, in particular to a low-noise resin bearing for a wind wheel. The bearing comprises a bearing inner ring, a bearing outer ring and a resin fixing block, the bottom of the resin fixing block is fixedly connected with a retainer, the retainer is fixedly connected with a plurality of oil rubber limiting blocks, balls are arranged between the rubber limiting blocks and the retainer, a third oil storage is formed in an inner cavity of the resin fixing block, and a second oil storage is formed in the inner cavity of the resin fixing block. A plurality of third oil outlet holes are formed in the bottom of the third oil storage; and the bearing inner ring and the bearing outer ring are I-shaped. Lubricating oil is stored in the oil storage depot, and then the lubricating oil in the oil storage depot is brought to the surfaces of the balls through continuous rolling of the balls at the oil outlet holes, so that the effects of lubrication and noise reduction are achieved, and the problem of abnormal sound of the bearing caused by insufficient lubricating oil is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, and specifically, to a resin bearing for a wind wheel with low noise. Background Technique

[0002] Resin bearings for wind wheels are widely used in the inner wind wheel components of various household appliance brand air conditioners and automotive air conditioners. The inner wind wheel resin bearing is the most core component in the inner wind wheel component and is the core component for noise reduction at the shaft end of this type of product. It is widely used in various household appliance brand air conditioners and automotive air conditioners.

[0003] In the prior art, for example, Chinese Patent Publication No. CN216342999U discloses a resin bearing for a wind wheel, which includes a resin bearing body and an oil sealing cover plate. The center of the resin bearing body is a bearing mounting hole. There is a circular groove at the upper end of the resin bearing body. The oil sealing cover plate is circular, and the diameter of the oil sealing cover plate matches the diameter of the circular groove. The oil sealing cover plate is arranged in the circular groove; there is an inner convex, arc-shaped bayonet at the upper end of the circular groove, that is, an inner R bayonet design is adopted; the arc radius R of the arc-shaped bayonet is 0.1 to 1 mm; the outer edges of the upper and lower surfaces of the oil sealing cover plate are both arcs, and the arc radius r of the oil sealing cover plate is 0.1 to 1 mm; when the oil sealing cover plate is pressed into the circular groove from top to bottom, the outer edge of the oil sealing cover plate and the inner wall of the circular groove are in clearance fit, and the arc-shaped bayonet is stuck above the outer arc of the oil sealing cover plate, and the oil sealing cover plate is tightly locked by the arc-shaped bayonet. The arc radius r of the oil sealing cover plate is 0.25 mm, and the beneficial effects are: not easy to loosen and low noise.

[0004] However, after the bearing operates for a long time, the lubricating oil on the bearing will also be exhausted, resulting in noise problems. And if the lubricating oil is insufficient, it will cause abnormal noise of the bearing. In view of this, we propose a resin bearing for a wind wheel with low noise. Content of the Utility Model

[0005] The purpose of the present utility model is to provide a resin bearing for a wind wheel with low noise to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the present utility model provides a resin bearing for a wind wheel with low noise, which includes an inner bearing ring, an outer bearing ring and a resin fixing block. A cage is fixedly connected to the bottom of the resin fixing block. The cage is fixedly connected with a number of oil rubber limiting blocks. There are rolling balls between the rubber limiting blocks and the cage. A third oil storage tank is opened in the inner cavity of the resin fixing block. A number of third oil outlet holes are opened at the bottom of the third oil storage tank. The shapes of the inner bearing ring and the outer bearing ring are "I"-shaped.

[0007] As a further improvement of the technical solution, a first oil storage tank is provided in the inner cavity of the bearing inner ring, and a plurality of first oil outlet holes are provided on the surface of the first oil storage tank close to the bearing outer ring.

[0008] As a further improvement of the technical solution, a second oil storage tank is provided in the inner cavity of the bearing outer ring, and a plurality of second oil outlet holes are provided on the surface of the second oil storage tank close to the bearing inner ring.

[0009] As a further improvement of the technical solution, an inner ring shock pad is fixedly connected to the side of the bearing inner ring away from the bearing outer ring.

[0010] As a further improvement of the technical solution, an outer ring shock pad is fixedly connected to the side of the bearing outer ring away from the bearing inner ring.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] For the resin bearing of the wind wheel with low noise, when the bearing works, the balls will continuously roll within a certain space. When the balls roll, the lubricating oil continuously seeps from the first oil storage tank, the second oil storage tank and the third oil storage tank through the first oil outlet holes, the second oil outlet holes and the third oil outlet holes onto the surface of the balls until the whole body of the balls is wrapped by the lubricating oil. Since the oil outlet holes are small, when the balls are completely wrapped by the lubricating oil, the lubricating oil in the oil storage tank will no longer seep out. When the lubricating oil on the surface of the balls dries up, it will automatically flow from the oil storage tank to the balls through the small oil outlet holes. The shock pads can block the transmission of vibration to the mechanical equipment, achieving the effects of lubrication and noise reduction, thereby solving the problem of abnormal noise of the bearing caused by insufficient lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the overall structural schematic diagram of the present utility model;

[0014] Figure 2 is the split cross-sectional schematic diagram of the inner and outer rings of the present utility model;

[0015] Figure 3 is the structural schematic diagram of the ball assembly of the present utility model;

[0016] Figure 4 is the horizontal cross-sectional schematic diagram of the present utility model;

[0017] Figure 5 is the split cross-sectional schematic diagram of the ball assembly structure of the present utility model.

[0018] The meanings of the various reference numerals in the figure are as follows:

[0019] 1. Inner ring of bearing; 11. Inner ring shock pad; 12. First oil storage tank; 13. First oil outlet hole; 2. Outer ring of bearing; 21. Outer ring shock pad; 22. Second oil storage tank; 23. Second oil outlet hole; 3. Resin fixing block; 31. Ball; 32. Rubber limit block; 33. Third oil outlet hole; 34. Cage; 35. Third oil storage tank. Detailed implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0021] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0022] In addition, in the description of the present invention, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.

[0023] Please refer to Figures 3 - 5 As shown, the present invention provides a resin bearing for a wind wheel with low noise, including an inner ring 1 of the bearing, an outer ring 2 of the bearing and a resin fixing block 3. A cage 34 is fixedly connected to the bottom of the resin fixing block 3. The cage 34 is fixedly connected with a plurality of oil rubber limit blocks 32. The rubber limit block 32 is in the shape of a reverse bracket. This shape design can well limit the balls 31 within a certain range. A ball 31 is arranged between the rubber limit block 32 and the cage 34. A third oil storage tank 35 is opened in the inner cavity of the resin fixing block 3. A plurality of third oil outlet holes 33 are opened at the bottom of the third oil storage tank 35. The shapes of the inner ring 1 and the outer ring 2 of the bearing are in the shape of "I". This shape forms a certain limited non-closed space with the rubber limit block 32. In cooperation with the use of lubricating oil, it maximally ensures the rotation of the bearing and reduces its noise, and the balls 31 roll in this space without falling off or deviating, thus affecting the normal operation of the bearing.

[0024] Please refer to Figure 2As shown in the figure, in this embodiment, a first oil storage tank 12 is provided in the inner cavity of the bearing inner ring 1. A plurality of first oil outlet holes 13 are provided on the surface of the first oil storage tank 12 close to the bearing outer ring 2. A second oil storage tank 22 is provided in the inner cavity of the bearing outer ring 2. A plurality of second oil outlet holes 23 are provided on the surface of the second oil storage tank 22 close to the bearing inner ring 1.

[0025] Please refer to Figure 2 and Figure 3 As shown in the figure, further, the lubricating oil stored in the first oil storage tank 12, the second oil storage tank 22 and the third oil storage tank 35 can ensure that the bearing does not need to be replaced and refilled with lubricating oil within a certain period of time, making the bearing operate more efficiently. At the same time, it also solves the problem of abnormal noise caused by insufficient lubricating oil during the operation of the bearing. The hole shapes of the first oil outlet hole 13, the second oil outlet hole 23 and the third oil outlet hole 33 are circular, and the design of these holes is very small. When the ball 31 rolls, it will not pause due to the first oil outlet hole 13, the second oil outlet hole 23 and the third oil outlet hole 33, so as to produce abnormal noise and unnecessary noise.

[0026] Please refer to Figure 2 As shown in the figure, specifically, an inner ring shock pad 11 is fixedly connected to the side of the bearing inner ring 1 away from the bearing outer ring 2, and an outer ring shock pad 21 is fixedly connected to the side of the bearing outer ring 2 away from the bearing inner ring 1.

[0027] Please refer to Figure 1 and Figure 2 As shown in the figure, in addition, the noise of the bearing is often not directly generated by the bearing itself, but is caused by the vibration generated by the structure of the bearing and the surrounding components. Therefore, the root cause of the noise can be attributed to vibration. So, to solve the noise problem, we can start from reducing vibration. The shock pad can effectively block the transmission of vibration to the mechanical equipment, thus playing a role in alleviating vibration and protecting the equipment. When the vibration is alleviated, the noise will also be reduced.

[0028] To sum up, the working principle of this solution is as follows:

[0029] Since the rubber limit block 32 is in the shape of a reverse bracket, and this shape design can well limit the ball 31 within a certain range. The shapes of the inner bearing ring 1 and the outer bearing ring 2 are in the shape of "I". This shape forms a certain limited non-closed space with the rubber limit block 32. When the bearing is working, the ball 31 continuously rolls within this space. At the same time, lubricating oil will continuously penetrate from the first oil storage tank 12, the second oil storage tank 22, and the third oil storage tank 35 through the first oil outlet hole 13, the second oil outlet hole 23, and the third oil outlet hole 33 onto the surface of the ball 31 until the entire ball 31 is wrapped with lubricating oil. Since the oil outlet holes are small, when the ball 31 is completely wrapped with lubricating oil, the lubricating oil in the oil storage tank will no longer continue to seep out. When the lubricating oil around the ball 31 dries up, it will automatically flow from the oil storage tank through the small oil outlet holes onto the ball 31. The inner ring shock pad 11 and the outer ring shock pad 21 can block the vibration from spreading to the mechanical equipment.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only the preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-noise resin bearing for a wind wheel, comprising a bearing inner ring (1), a bearing outer ring (2) and a resin fixing block (3), characterized in that: The bottom of the resin fixing block (3) is fixedly connected to a retaining frame (34), the retaining frame (34) is fixedly connected to a plurality of oil rubber limit blocks (32), a ball (31) is arranged between the rubber limit block (32) and the retaining frame (34), the inner cavity of the resin fixing block (3) is provided with a third oil reservoir (35), and the bottom of the third oil reservoir (35) is provided with a plurality of third oil outlet holes (33), wherein: The bearing inner ring (1) and the bearing outer ring (2) are in the shape of an I-shaped character.

2. The low-noise wind wheel resin bearing according to claim 1, characterized in that: The inner cavity of the bearing inner ring (1) is provided with a first oil reservoir (12), and a surface of the first oil reservoir (12) on one side close to the bearing outer ring (2) is provided with a plurality of first oil outlet holes (13).

3. The low-noise wind wheel resin bearing according to claim 2, characterized in that: The inner cavity of the bearing outer ring (2) is provided with a second oil reservoir (22), and a surface of the second oil reservoir (22) on one side close to the bearing inner ring (1) is provided with a plurality of second oil outlet holes (23).

4. The low-noise wind wheel resin bearing according to claim 2, characterized in that: An inner ring shock-absorbing pad (11) is fixedly connected to a side of the bearing inner ring (1) away from the bearing outer ring (2).

5. The low-noise wind wheel resin bearing according to claim 3, characterized in that: An outer ring shock-absorbing pad (21) is fixedly connected to the side of the bearing outer ring (2) away from the bearing inner ring (1).

Images