Low-noise separation type bearing for new energy automobile
By adopting rolling connections between balls and connection grooves, lubricating cotton, limiting sheets, oil holes and sealing gaskets in new energy vehicle bearings, the problem of noise increase after use is solved, reducing noise and improving sealing is achieved Effects of sexual and stability.
Patent Information
- Application Number
- CN202420574632.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-25
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-03-25
AI Technical Summary
The friction of existing bearings increases after long-term use, resulting in increased noise and affecting the driver's experience.
A low-noise separation bearing is designed, which adopts a rolling connection between the ball and the connecting groove, combining lubricant and limiting plate to reduce friction, an oil hole is provided on the outer ring to replenish the lubricant, and the sealing gasket improves sealing and absorbs sound. Cotton absorbs noise.
It effectively reduces the noise probability when the bearing rotates, reduces the impact on the driver, and simplifies the lubricant replenishment process, improving the stability and sealing of the device.
Smart Images
Figure CN222185494U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of new energy vehicles, in particular to a low-noise separation bearing for new energy vehicles. Background Art
[0002] New energy vehicles refer to vehicles that use unconventional automotive fuels as their power source, integrate advanced technologies in vehicle power control and drive, and form vehicles with advanced technical principles, new technologies, and new structures. New energy vehicles include pure electric vehicles, extended-range electric vehicles, hybrid vehicles, fuel cell electric vehicles, hydrogen engine vehicles, etc. In a broad sense, new energy vehicles, also known as alternative fuel vehicles, include pure electric vehicles and fuel cell electric vehicles, which are all vehicles that use non-petroleum fuels, as well as hybrid electric vehicles, ethanol gasoline vehicles, and other vehicles that partially use non-petroleum fuels. The main function of the wheel hub bearing is to bear weight and provide precise guidance for the rotation of the wheel hub. It bears both axial loads and radial loads and is a very important component. The wheel hub bearing unit is developed on the basis of standard angular contact ball bearings and tapered roller bearings. It integrates two sets of bearings as one, and has the advantages of good assembly performance, omitting clearance adjustment, light weight, compact structure, large load capacity, grease can be pre-loaded for sealed bearings, omitting external wheel hub seals, and no maintenance. It has been widely used in cars and there is also a trend of gradually expanding its application in trucks.
[0003] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: after long-term use, the friction inside the existing bearings increases, which in turn causes the bearings to produce more noise when rotating, thus affecting the driver. Utility Model Content
[0004] In order to solve the above problems, the utility model provides a low-noise separation bearing for new energy vehicles.
[0005] The above-mentioned technical purpose of the utility model is achieved through the following technical solutions: a low-noise separation bearing for new energy vehicles, including a connecting rod, a bearing body is installed on the side wall of the connecting rod, the bearing body includes a bearing inner ring installed on the side wall of the connecting rod, a plurality of balls installed on the outer wall of the bearing inner ring, and a bearing outer ring installed on a plurality of balls, a first connecting groove is opened on the outer wall of the bearing inner ring, a second connecting groove is opened on the inner wall of the bearing outer ring, the ball is rollingly connected to the first connecting groove, the ball is rollingly connected to the second connecting groove, and a noise reduction device is installed on the bearing body.
[0006] By adopting the above technical solution, when the bearing body is in use, the outer ring of the bearing rotates, thereby causing the ball to roll under the full action of the bearing. In this process, after the bearing body has been used for a long time, the bearing body reduces friction under the action of the noise reduction device, thereby reducing the probability of the bearing body making noise when rotating, thereby reducing the probability of the bearing rotating and affecting the driver.
[0007] Furthermore, a first mounting groove is provided on the outer wall of the inner ring of the bearing, and a second mounting groove is provided on the inner wall of the outer ring of the bearing. The noise reduction device includes lubricating cotton installed in the first mounting groove and the second mounting groove, a connecting plate installed on the side wall of the lubricating cotton, and a limiting plate installed on the side wall of the limiting plate. The side wall of the lubricating cotton abuts against the side wall of the ball.
[0008] By adopting the above technical solution, when the ball is rotating, the side wall of the lubricating cotton abuts against the side wall of the ball, so that the lubricating oil in the lubricating cotton lubricates the ball when the ball rolls, thereby reducing the upper limit of the maximum static friction between the ball and the outer ring of the bearing and the inner ring of the bearing during the rolling process, thereby reducing the probability of noise generated by the bearing body during rotation, thereby reducing the probability of the bearing rotating to affect the driver.
[0009] Furthermore, a plurality of oil holes are formed through the outer wall of the outer ring of the bearing, and the plurality of oil holes are directly opposite to the lubricating cotton.
[0010] By adopting the above technical solution, after the lubricating cotton is used for a long time, the lubricating oil on the surface gradually decreases. At this time, the staff applies lubricating oil to the side wall of the outer ring of the bearing, and then the lubricating oil moves along the oil hole into the lubricating cotton, thereby replenishing the lubricating oil in the lubricating cotton, thereby reducing the staff's time to replenish the lubricating oil, thereby reducing the staff's work difficulty.
[0011] Furthermore, a first limiting groove is formed on the inner wall of the first installation groove, a second limiting groove is formed on the inner wall of the second installation groove, and a sealing gasket is installed in both the first limiting groove and the second limiting groove.
[0012] By adopting the above technical solution, the sealing gasket improves the sealing performance of the bearing body, thereby reducing the probability of dust entering the bearing body. In addition, the side wall of the sealing gasket abuts against the inner wall of the first limiting groove and the second limiting groove, thereby reducing the probability of the noise reduction device shaking during use, thereby improving the stability of the device.
[0013] Furthermore, the sealing gasket is made of plastic material.
[0014] By adopting the above technical solution, the sealing gasket made of plastic material reduces the probability of lubricating oil leaking out of the bearing body, thereby improving the sealing performance of the device.
[0015] Furthermore, sound-absorbing cotton is installed on the side wall of the sealing gasket, and the side wall of the sound-absorbing cotton is respectively in contact with the limiting plate and the side wall of the sealing gasket.
[0016] By adopting the above technical solution, the sound-absorbing cotton absorbs the noise emitted by the bearing body during the rotation of the bearing, thereby further reducing the probability of the bearing rotating to affect the driver.
[0017] Furthermore, the lubricating cotton extends into the oil hole.
[0018] By adopting the above technical solution, the lubricating cotton extends into the oil hole, which reduces the probability of lubricating oil seeping out of the lubricating cotton and reduces the probability of dust entering the bearing through the oil hole.
[0019] In summary, the utility model has the following beneficial effects:
[0020] 1. In the present application, when the bearing body is in use, the outer ring of the bearing rotates, thereby causing the ball to roll under the full action of the bearing. In this process, after the bearing body has been used for a long time, the bearing body reduces friction under the action of the noise reduction device, thereby reducing the probability of the bearing body making noise when rotating, thereby reducing the probability of the bearing rotating and affecting the driver;
[0021] 2. In the present application, when the ball is rotating, the side wall of the lubricating cotton abuts against the side wall of the ball, so that the lubricating oil in the lubricating cotton lubricates the ball when the ball rolls, thereby reducing the upper limit of the maximum static friction between the ball and the outer ring of the bearing and the inner ring of the bearing during the rolling process, thereby reducing the probability of noise when the bearing body rotates, thereby reducing the probability of affecting the driver when the bearing rotates;
[0022] 3. In this application, after the lubricating cotton is used for a long time, the lubricating oil on the surface gradually decreases. At this time, the staff applies lubricating oil to the side wall of the outer ring of the bearing, and then the lubricating oil moves along the oil hole into the lubricating cotton, thereby replenishing the lubricating oil in the lubricating cotton, thereby reducing the staff's time to replenish the lubricating oil, thereby reducing the staff's work difficulty. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;
[0024] Figure 2 It is a schematic diagram of the cross-sectional structure of the bearing body in the embodiment of the utility model;
[0025] Figure 3 This utility model embodiment Figure 2 Schematic diagram of the cross-sectional structure of A.
[0026] In the figure: 1. connecting rod; 2. bearing body; 21. bearing inner ring; 22. ball; 23. bearing outer ring; 3. first connecting groove; 31. second connecting groove; 32. first mounting groove; 33. second mounting groove; 34. first limiting groove; 35. second limiting groove; 4. noise reduction device; 41. lubricating cotton; 42. connecting plate; 43. limiting plate; 5. oil hole; 6. sealing gasket; 7. sound-absorbing cotton. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.
[0028] like Figure 1-3 As shown, the embodiment of the present application discloses a low-noise separation bearing for new energy vehicles, including a connecting rod 1, a bearing body 2, a noise reduction device 4, a sealing gasket 6 and a sound-absorbing cotton 7. The connecting rod 1 is a round rod-shaped structure, and its axis is horizontal. The bearing body 2 is mounted on the side wall of the connecting rod 1, and the bearing body 2 includes a bearing inner ring 21, a ball 22 and a bearing outer ring 23. The bearing inner ring 21 is an annular structure, and its axis coincides with the axis of the connecting rod 1. A first connecting groove 3 is provided on the outer wall of the bearing inner ring 21. The ball 22 is a spherical body structure, and a plurality of balls 22 are provided and mounted on the outer wall of the bearing inner ring 21. The bearing outer ring 23 is an annular structure, and its axis coincides with the axis of the connecting rod 1. The bearing outer ring 23 is mounted on a plurality of balls 22. A second connecting groove 31 is provided on the inner wall of the bearing outer ring 23, and the ball 22 is rollingly connected to the first connecting groove 3, and the ball 22 is rollingly connected to the second connecting groove 31.
[0029] When the bearing body 2 is in use, the outer ring 23 of the bearing rotates, thereby causing the ball 22 to roll under the full action of the bearing. During this process, after the bearing body 2 has been used for a long time, the bearing body 2 reduces friction under the action of the noise reduction device 4, thereby reducing the probability of the bearing body 2 making noise when rotating, thereby reducing the probability of the bearing rotating and affecting the driver.
[0030] A first mounting groove 32 is provided on the outer wall of the bearing inner ring 21, and a second mounting groove 33 is provided on the inner wall of the bearing outer ring 23. The noise reduction device 4 is installed on the bearing body 2, and the noise reduction device 4 includes a lubricating cotton 41, a connecting piece 42, and a limiting piece 43. The lubricating cotton 41 is installed in the first mounting groove 32 and the second mounting groove 33, and is used to lubricate the ball 22. The side wall of the lubricating cotton 41 abuts against the side wall of the ball 22. The connecting piece 42 is an annular structure, and its axis coincides with the axis of the connecting rod 1. The connecting piece 42 is installed on the side wall of the lubricating cotton 41. The limiting piece 43 is an annular structure, and its axis coincides with the axis of the connecting rod 1. The limiting piece 43 is installed on the side wall of the limiting piece 43.
[0031] When the ball 22 is rotating, the side wall of the lubricating cotton 41 abuts against the side wall of the ball 22, so that the lubricating oil in the lubricating cotton 41 lubricates the ball 22 when the ball 22 rolls, thereby reducing the maximum static friction between the ball 22 and the bearing outer ring 23 and the bearing inner ring 21 during the rolling process, thereby reducing the probability of noise generated by the bearing body 2 during rotation, thereby reducing the probability of the bearing rotating to affect the driver.
[0032] A plurality of oil holes 5 are formed through the outer wall of the bearing outer ring 23 , and the plurality of oil holes 5 are directly opposite to the lubricating cotton 41 .
[0033] After the lubricating cotton 41 is used for a long time, the lubricating oil on the surface gradually decreases. At this time, the staff applies lubricating oil to the side wall of the bearing outer ring 23, and then the lubricating oil moves along the oil hole 5 into the lubricating cotton 41, thereby replenishing the lubricating oil in the lubricating cotton 41, thereby reducing the staff's time to replenish the lubricating oil, thereby reducing the staff's work difficulty.
[0034] The first mounting groove 32 has a first limiting groove 34 on its inner wall, and the second mounting groove 33 has a second limiting groove 35 on its inner wall. The sealing gasket 6 is an annular structure, and its axis coincides with the axis of the connecting rod 1. The sealing gasket 6 is installed in the first limiting groove 34 and the second limiting groove 35.
[0035] The sealing gasket 6 improves the sealing performance of the bearing body 2, thereby reducing the probability of dust entering the bearing body 2. In addition, the side wall of the sealing gasket 6 abuts against the inner wall of the first limiting groove 34 and the second limiting groove 35, thereby reducing the probability of the noise reduction device 4 shaking during use, thereby improving the stability of the device.
[0036] In order to improve the sealing performance of the device, the sealing gasket 6 is a sealing gasket 6 made of plastic material. The sealing gasket 6 made of plastic material reduces the probability of lubricating oil seeping out of the bearing body 2, thereby improving the sealing performance of the device.
[0037] The sound-absorbing cotton 7 is installed on the side wall of the sealing gasket 6 , and the side wall of the sound-absorbing cotton 7 abuts against the limiting piece 43 and the side wall of the sealing gasket 6 respectively.
[0038] The sound-absorbing cotton 7 absorbs the noise emitted by the bearing body 2 during the rotation of the bearing, thereby further reducing the probability of the bearing rotating to affect the driver.
[0039] In order to reduce the probability of dust entering the bearing through the oil hole 5, the lubricating cotton 41 extends into the oil hole 5. The lubricating cotton 41 extending into the oil hole 5 reduces the probability of lubricating oil seeping out of the lubricating cotton 41 and reduces the probability of dust entering the bearing through the oil hole 5.
[0040] The use principle of a low-noise separation bearing for new energy vehicles in this embodiment is as follows: when the bearing body 2 is in use, the outer ring 23 of the bearing rotates, thereby causing the ball 22 to roll under the full action of the bearing. During this process, the side wall of the lubricating cotton 41 abuts against the side wall of the ball 22, thereby causing the lubricating oil in the lubricating cotton 41 to lubricate the ball 22 when the ball 22 rolls, thereby reducing the maximum static friction force between the ball 22 and the outer ring 23 of the bearing and the inner ring 21 of the bearing during the rolling process, thereby reducing the probability of noise occurring when the bearing body 2 rotates, thereby reducing the probability of the bearing rotating and affecting the driver.
[0041] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.
Claims
1. A low-noise separation bearing for a new energy vehicle, comprising a connecting rod (1), characterized in that: A bearing body (2) is mounted on the side wall of the connecting rod (1), and the bearing body (2) comprises a bearing inner ring (21) mounted on the side wall of the connecting rod (1), a plurality of balls (22) mounted on the outer wall of the bearing inner ring (21), and a bearing outer ring (23) mounted on the plurality of balls (22). A first connecting groove (3) is provided on the outer wall of the bearing inner ring (21), and a second connecting groove (31) is provided on the inner wall of the bearing outer ring (23). The balls (22) are rollingly connected to the first connecting groove (3), and the balls (22) are rollingly connected to the second connecting groove (31). 1) rolling connection, a noise reduction device (4) is installed on the bearing body (2), a first installation groove (32) is opened on the outer wall of the bearing inner ring (21), and a second installation groove (33) is opened on the inner wall of the bearing outer ring (23), and the noise reduction device (4) includes lubricating cotton (41) installed in the first installation groove (32) and the second installation groove (33), a connecting piece (42) installed on the side wall of the lubricating cotton (41), and a limiting piece (43) installed on the side wall of the limiting piece (43), and the side wall of the lubricating cotton (41) is in contact with the side wall of the ball (22).
2. According to claim 1, a low-noise separation bearing for new energy vehicles is characterized by: A plurality of oil holes (5) are formed through the outer wall of the bearing outer ring (23), and the plurality of oil holes (5) are directly opposite to the lubricating cotton (41).
3. The low-noise separation bearing for new energy vehicles according to claim 1 is characterized by: A first limiting groove (34) is provided on the inner wall of the first installation groove (32), a second limiting groove (35) is provided on the inner wall of the second installation groove (33), and a sealing gasket (6) is installed in both the first limiting groove (34) and the second limiting groove (35).
4. The low-noise separation bearing for new energy vehicles according to claim 3 is characterized by: The sealing gasket (6) is a sealing gasket (6) made of plastic material.
5. The low-noise separation bearing for new energy vehicles according to claim 3 is characterized by: Sound-absorbing cotton (7) is installed on the side wall of the sealing gasket (6), and the side wall of the sound-absorbing cotton (7) is respectively in contact with the limiting plate (43) and the side wall of the sealing gasket (6).
6. The low-noise separation bearing for new energy vehicles according to claim 2 is characterized by: The lubricating cotton (41) extends into the oil hole (5).