High-precision bearing for automobile

Abstract

The utility model provides a high-precision bearing for an automobile, which relates to the field of bearings and comprises a bearing inner ring, a bearing outer ring is arranged on the outer surface of the bearing inner ring, a plurality of circumferentially distributed bearing balls are arranged between the bearing inner ring and the bearing outer ring, and a plurality of circumferentially distributed notches are formed in the front surface of the bearing outer ring. The inner walls of the multiple notches are rotationally connected with rotating pieces, and the back faces of the multiple rotating pieces are fixedly connected with torsional springs. According to the high-precision bearing for the automobile, when lubricating oil is poured into the oil storage cavity, the communicating groove and the oil inlet groove can be in a communicating state by rotating the rotating part, so that the lubricating oil can enter the oil storage cavity through the communicating groove and the oil inlet groove; and the rotating piece can reset under the action of deformation force of the torsional spring, so that the rotating piece can seal the oil inlet groove, and meanwhile, leakage of lubricating oil under the action of centrifugal force can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a high-precision bearing for automobiles. Background Art

[0002] Bearings are an important component in contemporary mechanical equipment. Their main function is to support mechanical rotating bodies, reduce the friction coefficient during their movement, and ensure their rotation accuracy. Early linear motion bearings were a row of wooden poles placed under a row of pry plates. Modern linear motion bearings use the same working principle, but sometimes balls are used instead of rollers. The simplest rotary bearing is a sleeve bearing, which is just a bushing sandwiched between the wheel and the axle. This design was later replaced by rolling bearings, which replace the original bushing with many cylindrical rollers, and each rolling body is like a separate wheel.

[0003] The existing patent (announcement number: CN211623950U) discloses a new type of automobile bearing, including a bearing outer ring, a bearing inner ring is arranged inside the bearing outer ring, a plurality of slide grooves are evenly arranged on the inner wall of the bearing outer ring, a slideway is arranged in the middle of the outer wall of the bearing inner ring, a plurality of balls are rollingly connected between the plurality of slide grooves and the slideway, four oiling mechanisms are evenly arranged on the outer wall of the bearing outer ring, and dustproof and noise reduction mechanisms are arranged on both side walls of the bearing outer ring. The oiling mechanism comprises a lower half oil box and an upper half oil box, the bottom end of the lower half oil box is fixedly connected to the outer wall of the bearing outer ring, and the top end of the lower half oil box is snap-connected with the bottom end of the upper half oil box. The utility model is a new type of automobile bearing, which can flexibly select the best oiling position for oiling according to the specific installation angle of the bearing by setting a plurality of oiling mechanisms, is convenient and flexible to use, and the lower half oil box and the upper half oil box can be quickly disassembled and separated, and the internal filter can be conveniently cleaned.

[0004] When the above-mentioned document is in use, the outer ring of the bearing usually serves as a support body and contacts the external mounting surface. The oil box arranged on the outer surface of the outer ring of the bearing in the document will affect the installation and use of the bearing. At the same time, when the bearing is running, a large centrifugal force will appear under the action of centrifugation. Since the plugging cover is stuck with the oil box, it is easy for the plugging cover to fall off due to the centrifugal force, thereby causing leakage of the lubricating oil. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a high-precision automobile bearing, which solves the problems raised in the background technology.

[0006] Technical solution: To achieve the above purpose, the utility model is implemented through the following technical solution: a high-precision automobile bearing, including a bearing inner ring, a bearing outer ring is provided on the outer surface of the bearing inner ring, a plurality of circumferentially distributed bearing balls are arranged between the bearing inner ring and the bearing outer ring, a plurality of circumferentially distributed notches are opened on the front of the bearing outer ring, the inner walls of the plurality of notches are rotatably connected with rotating parts, the backs of the plurality of rotating parts are fixedly connected with torsion springs, the other ends of the plurality of torsion springs are fixedly connected to the inner walls of the notches adjacent to them, a plurality of circumferentially distributed oil storage cavities are opened inside the bearing outer ring, the inner walls of the plurality of oil storage cavities are opened with oil inlet grooves, the fronts of the plurality of rotating parts are opened with connecting grooves, and the plurality of connecting grooves are connected to the oil inlet grooves adjacent to them.

[0007] Furthermore, the front sides of the plurality of rotating parts are all connected with oil filters, and the plurality of oil filters all penetrate the connecting grooves close to them. The oil filters can filter impurities in the oil, thereby making the oil entering the oil storage chamber purer.

[0008] Furthermore, the inner wall of the bearing outer ring is provided with a plurality of circumferentially distributed oil filling grooves, and the plurality of oil filling grooves are connected to the oil storage cavity adjacent thereto. The provision of the oil filling grooves can facilitate the pouring of lubricating oil onto the bearing balls, and the friction between the bearing balls and the bearing inner ring and the bearing outer ring can be reduced through the action of the lubricating oil.

[0009] Furthermore, two ball brackets are provided inside the inner ring of the bearing, and the two ball brackets are symmetrical. The installation of the ball brackets can limit the position of the balls, so that the bearing balls can maintain a stable state.

[0010] Furthermore, dust covers are provided on both the front and rear sides of the outer ring of the bearing, and the two dust covers are symmetrical. The installation of the dust covers can block external dust and prevent external impurities from contacting the bearing balls and increasing the friction of the bearing balls.

[0011] Furthermore, the front and back sides of the bearing inner ring and the bearing outer ring are provided with a plurality of circumferentially distributed sockets, and the side surfaces of the two dust covers close to each other are installed with a plurality of circumferentially distributed plug blocks, and the plurality of plug blocks are plugged into the sockets close to them, and the inner walls of the plurality of sockets are provided with top beads, and the plurality of top beads can contact the plug blocks close to them, and the dust covers can be limited by the cooperation of the plug blocks, the sockets and the top beads, so that the dust covers can be stably fixed between the bearing inner ring and the bearing outer ring.

[0012] Furthermore, a soundproof cover is installed on the side surfaces of the two dustproof covers that are away from each other, and the two soundproof covers are symmetrical. Installing the soundproof covers can reduce the noise when the bearing balls are in use, thereby reducing the transmission of noise.

[0013] The beneficial effects of the utility model are:

[0014] 1. A high-precision automobile bearing can install a rotating part to connect the connecting groove and the oil inlet groove when the lubricating oil is poured into the oil storage chamber. The rotating part can be rotated to connect the connecting groove and the oil inlet groove, so that the lubricating oil can enter the oil storage chamber through the connecting groove and the oil inlet groove. When the oil filling is completed, the rotating part will be reset under the deformation force of the torsion spring, so that the oil inlet groove can be closed, and the leakage of the lubricating oil under the action of centrifugal force can be avoided.

[0015] 2. This kind of high-precision automobile bearing can filter impurities in the oil by installing an oil filter, so that the oil entering the oil storage chamber can be purer. The installation of a dust cover can block external dust and prevent external impurities from contacting the bearing balls and increasing the friction of the bearing balls. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a sectional view of the left side view of the inner ring of the bearing of the utility model;

[0017] Figure 2 For this utility model Figure 1 A schematic diagram of the structure at A;

[0018] Figure 3 It is a cross-sectional view of the rear view of the outer ring of the bearing of the utility model;

[0019] Figure 4 This is a rear view of the inner ring of the bearing of the utility model;

[0020] Figure 5 This is a front view of the ball bearing bracket of the utility model.

[0021] Among them, 1. bearing inner ring; 2. bearing outer ring; 3. bearing ball; 4. notch; 5. rotating part; 6. torsion spring; 7. oil storage chamber; 8. oil inlet groove; 9. connecting groove; 10. oil filter; 11. oil filling groove; 12. ball bracket; 13. dust cover; 14. socket; 15. plug block; 16. top ball; 17. sound insulation cover. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5A high-precision automobile bearing comprises a bearing inner ring 1, a bearing outer ring 2 is arranged on the outer surface of the bearing inner ring 1, a plurality of bearing balls 3 distributed circumferentially are arranged between the bearing inner ring 1 and the bearing outer ring 2, a plurality of notches 4 distributed circumferentially are opened on the front of the bearing outer ring 2, a plurality of inner walls of the notches 4 are rotatably connected with rotating parts 5, a plurality of back surfaces of the rotating parts 5 are fixedly connected with torsion springs 6, the other ends of the plurality of torsion springs 6 are fixedly connected with the inner walls of the notches 4 adjacent thereto, a plurality of oil storage cavities 7 distributed circumferentially are opened inside the bearing outer ring 2, and the inner walls of the plurality of oil storage cavities 7 are fixedly connected with the inner walls of the notches 4 adjacent thereto. An oil inlet groove 8 is provided, and a connecting groove 9 is provided on the front of multiple rotating parts 5. Multiple connecting grooves 9 are connected to the oil inlet groove 8 adjacent to them. By installing the rotating part 5, when the lubricating oil is poured into the oil storage chamber 7, the connecting groove 9 and the oil inlet groove 8 can be connected by rotating the rotating part 5, so that the lubricating oil can enter the oil storage chamber 7 through the connecting groove 9 and the oil inlet groove 8. When the oil filling is completed, the rotating part 5 will be reset under the action of the deformation force of the torsion spring 6, so that it can close the oil inlet groove 8 and avoid the leakage of the lubricating oil under the action of centrifugal force.

[0024] The front sides of the plurality of rotating parts 5 are all connected with oil filters 10, and the plurality of oil filters 10 all penetrate the connecting grooves 9 adjacent thereto. The installation of the oil filters 10 can filter impurities in the oil, so that the oil entering the oil storage chamber 7 can be purer. The inner wall of the bearing outer ring 2 is provided with a plurality of circumferentially distributed oil filling grooves 11, and the plurality of oil filling grooves 11 are all connected with the oil storage chamber 7 adjacent thereto. The opening of the oil filling grooves 11 can facilitate the injection of lubricating oil onto the bearing balls 3, and the friction between the bearing balls 3 and the bearing inner ring 1 and the bearing outer ring 2 can be reduced by the action of the lubricating oil. Two ball holders 12 are provided inside the bearing inner ring 1, and the two ball holders 12 are symmetrical. The installation of the ball holders 12 can limit the balls, so that the bearing balls 3 can maintain a stable state.

[0025] Dust covers 13 are provided on both the front and rear sides of the bearing outer ring 2. The two dust covers 13 are symmetrical. The installation of the dust covers 13 can block external dust and prevent external impurities from contacting the bearing balls 3 and increasing the friction of the bearing balls 3. The front and back sides of the bearing inner ring 1 and the bearing outer ring 2 are provided with multiple circumferentially distributed sockets 14. The sides of the two dust covers 13 that are close to each other are each installed with multiple circumferentially distributed plug blocks 15. The multiple plug blocks 15 are plugged into the sockets 14 close to them. The inner walls of the plurality of sockets 14 are provided with top beads 16, and the plurality of top beads 16 can contact the adjacent plug blocks 15. The dust cover 13 can be limited by the cooperation of the plug blocks 15, the sockets 14 and the top beads 16, so that the dust cover 13 can be stably fixed between the bearing inner ring 1 and the bearing outer ring 2. The two dust covers 13 are both installed with sound insulation covers 17 on the side away from each other, and the two sound insulation covers 17 are symmetrical. The installation of the sound insulation covers 17 can reduce the noise of the bearing balls 3 when in use, thereby reducing the transmission of noise.

[0026] During use, first, when the oil storage chamber 7 is filled with oil, the rotating part 5 is rotated so that the connecting groove 9 is connected with the oil inlet groove 8 during the rotation. At this time, the lubricating oil is poured into the oil storage chamber 7 through the connecting groove 9, and the lubricating oil can enter the oil storage chamber 7 through the connecting groove 9 and the oil inlet groove 8. At this time, the rotating part 5 is released, and the rotating part 5 will be reset under the action of the deformation force of the torsion spring 6, and the oil inlet groove 8 will be closed. At the same time, the leakage of the lubricating oil under the action of centrifugal force can be avoided. By installing the oil filter 10, impurities in the oil can be filtered, so that the oil entering the oil storage chamber 7 can be purer. Installing the dust cover 13 can block external dust, prevent external impurities from contacting the bearing ball 3 and causing the friction of the bearing ball 3 to increase. Installing the sound insulation cover 17 can reduce the noise of the bearing ball 3 during use, thereby reducing the transmission of noise.

[0027] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-precision automobile bearing, comprising a bearing inner ring (1), characterized in that: The outer surface of the bearing inner ring (1) is provided with a bearing outer ring (2), a plurality of circumferentially distributed bearing balls (3) are provided between the bearing inner ring (1) and the bearing outer ring (2), a plurality of circumferentially distributed notches (4) are provided on the front surface of the bearing outer ring (2), the inner walls of the plurality of notches (4) are rotatably connected to rotating members (5), the back surfaces of the plurality of rotating members (5) are fixedly connected to torsion springs (6), the other ends of the plurality of torsion springs (6) are fixedly connected to the inner walls of the notches (4) adjacent thereto, a plurality of circumferentially distributed oil storage cavities (7) are provided inside the bearing outer ring (2), the inner walls of the plurality of oil storage cavities (7) are provided with oil inlet grooves (8), the front surfaces of the plurality of rotating members (5) are provided with connecting grooves (9), and the plurality of connecting grooves (9) are connected to the oil inlet grooves (8) adjacent thereto.

2. A high-precision automobile bearing according to claim 1, characterized in that: The front surfaces of the plurality of rotating members (5) are all plugged with oil filter members (10), and the plurality of oil filter members (10) are all passed through the connecting grooves (9) adjacent thereto.

3. A high-precision automobile bearing according to claim 1, characterized in that: The inner wall of the bearing outer ring (2) is provided with a plurality of circumferentially distributed oil injection grooves (11), and the plurality of oil injection grooves (11) are all in communication with the adjacent oil storage chambers (7).

4. A high-precision automobile bearing according to claim 1, characterized in that: Two ball supports (12) are provided inside the bearing inner ring (1), and the two ball supports (12) are symmetrical.

5. The high-precision automobile bearing according to claim 1, characterized in that: Dust covers (13) are provided on both the front and rear side surfaces of the bearing outer ring (2), and the two dust covers (13) are symmetrical.

6. The high-precision automobile bearing according to claim 1, characterized in that: The front and back surfaces of the bearing inner ring (1) and the bearing outer ring (2) are each provided with a plurality of circumferentially distributed sockets (14); a plurality of circumferentially distributed plug blocks (15) are each installed on a side surface of the two dust covers (13) close to each other; the plurality of plug blocks (15) are each plugged into the adjacent sockets (14); the inner walls of the plurality of sockets (14) are each provided with top beads (16); and the plurality of top beads (16) are each capable of contacting the adjacent plug blocks (15).

7. A high-precision automobile bearing according to claim 6, characterized in that: A sound insulation cover (17) is installed on the side faces of the two dustproof covers (13) that are away from each other, and the two sound insulation covers (17) are symmetrical.

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