Half-axle bearing of automobile
By designing a semi-axle bearing of automobiles including inner ring, outer ring, barrier ring, roller, cage, oil injection pipe and air guide tube, the problems of loose bearings, difficulty in adding lubricant oil and heat dissipation are solved, and higher usage stability, longer service life and more effective heat dissipation and cooling are achieved.
Patent Information
- Application Number
- CN202422153434.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-09-03
AI Technical Summary
Car half-axle bearings are prone to looseness during use, poor stability in use, and difficult to dissipate heat and add lubricating oil, which affects the service life.
An automobile semi-axle bearing is designed, including an inner ring, an outer ring, a barrier ring, a roller, a cage, an oil injection pipe and a air guide tube. Through the cooperation of these components, stable locking of bearings, convenient addition of lubricating oil, and heat dissipation and cooling are achieved.
It improves the stability of the bearing, facilitates the addition of lubricating oil, extends the service life of the bearing, and achieves the heat dissipation and cooling of the bearing through the design of the air guide barrel.
Smart Images
Figure CN222991953U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automotive parts, in particular to an automotive half - shaft bearing. Background Art
[0002] The drive axle on an automobile can finally transmit the input power to the drive wheels. The drive axle is mostly installed at the end of the transmission system, and then drives the wheels to rotate through the drive half - shaft. When installing the half - shaft, it needs to be rotationally supported by bearings.
[0003] Currently, the half - shaft bearings on automobiles are all installed inside the bearing housing. However, because the bearing is cylindrical and its outer wall is relatively smooth, it is very easy to loosen in the bearing housing during use, resulting in poor use stability. Moreover, it is difficult for the bearing to dissipate heat, and the long - term high temperature affects the service life. When the lubricating oil in the bearing decreases, it is not convenient to add. Summary of the Invention
[0004] The utility model provides an automotive half - shaft bearing, which can improve the use stability, is very convenient for adding lubricating oil, can dissipate heat and cool down the bearing, and extend the service life of the bearing.
[0005] In the first aspect of the present disclosure, an automotive half - shaft bearing is provided, specifically including: an inner ring;
[0006] An outer ring is installed on the outside of the inner ring; a retaining ring is fixed on each of the left and right sides of the inner ring; a total of eight rollers are arranged between the inner ring and the outer ring, and a cage is also arranged outside the rollers; an oil injection pipe is installed on the top left side of the outer ring; an oil injection pipe cap is installed on the top of the oil injection pipe; a total of six air guide cylinders are arranged in a circular arrangement on the outer wall of the left retaining ring of the inner ring; the outer ring is installed in a bearing fixing seat.
[0007] In at least some embodiments, a circular track groove is provided on both the outside of the inner ring and the inside of the outer ring, and three circular grooves are equidistantly arranged in the circular track groove.
[0008] In at least some embodiments, a threaded hole corresponding to the outer thread of the bottom of the oil injection pipe is provided on the top left side of the outer ring, and a circular hole is provided on the top left side of the bearing fixing seat.
[0009] In at least some embodiments, two openings penetrating inside and outside are provided on the left part of each air guide cylinder, two openings are also provided on the right side of the air guide cylinder, and a rectangular partition is also provided inside the air guide cylinder.
[0010] In at least some embodiments, when the outer ring is installed inside the bearing fixing seat, the threaded hole on the left side of its top will coincide vertically with the round hole on the left side of the top of the bearing fixing seat, and the oil injection pipe can pass through the round hole on the left side of the top of the bearing fixing seat and be screwed into the threaded hole on the left side of the top of the outer ring.
[0011] In at least some embodiments, the openings on the left side of the air guide cylinder are all located on the left side of the left outer wall of the bearing fixing seat, and the openings on the air guide cylinder are also all located on the rotation trajectory of the inner ring.
[0012] In at least some embodiments, the outer diameter of the round tube part of the oil injection pipe is equal to the inner diameter of the round hole on the left side of the top of the bearing fixing seat, and a hexagonal block is also arranged on the outside of the oil injection pipe.
[0013] The utility model provides an automotive half shaft bearing, which has the following beneficial effects:
[0014] When the bearing in the utility model is installed in the bearing fixing seat, the oil injection pipe can be screwed into the outer ring, so as to lock the bearing and the bearing fixing seat, avoid loosening, improve the use stability, and when lubricating oil needs to be added later, it can also be added through the oil injection pipe, which is very convenient when adding lubricating oil. Moreover, when the bearing rotates, the air guide cylinder can guide the external air to the bearing surface, so as to dissipate heat and cool down the bearing, and extend the service life of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments will be briefly introduced below.
[0016] The drawings in the following description only relate to some embodiments of the present utility model, and do not limit the present utility model.
[0017] In the drawings:
[0018] Figure 1 A front left axonometric schematic diagram showing the overall structure of the present application is shown;
[0019] Figure 2 A front left axonometric schematic diagram showing the present application after sectioning is shown;
[0020] Figure 3 A front left axonometric schematic diagram showing the present application after being disassembled is shown;
[0021] Figure 4 An axonometric schematic diagram of the outer ring in the present application is shown;
[0022] Figure 5 An axonometric schematic diagram of the inner ring in the present application is shown;
[0023] Figure 6 A right axonometric schematic diagram of the air guide cylinder in the present application is shown;
[0024] List of Reference Numerals
[0025] 1. Inner ring; 2. Outer ring; 3. Retaining ring; 4. Roller; 5. Cage; 6. Oil injection pipe; 7. Oil injection pipe cap; 8. Air guide cylinder; 9. Bearing fixing seat. Detailed Implementation Manner
[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0027] Embodiment 1: Please refer to Figures 1 to 6 :
[0028] The present utility model provides an automotive half shaft bearing, including: an inner ring 1;
[0029] An outer ring 2 is installed on the outside of the inner ring 1. The inner ring 1 and the outer ring 2 are used to support the roller 4 and the cage 5. A retaining ring 3 is fixedly installed on each of the left and right sides of the inner ring 1. The retaining ring 3 can seal both sides of the bearing to prevent dust from entering the bearing. A total of eight rollers 4 are provided between the inner ring 1 and the outer ring 2, and a cage 5 is further provided outside the rollers 4. The cage 5 is used to support the rollers 4. When the bearing rotates, the inner ring 1 rotates inside the outer ring 2, and at this time, the rollers 4 roll in the annular raceways on the inner ring 1 and the outer ring 2. An oil injection pipe 6 is installed on the top left side of the outer ring 2. The oil injection pipe 6 can lock the outer ring 2 and the bearing fixing seat 9. When lubricating oil needs to be added to the bearing later, the oil injection pipe cap 7 can be removed first, and then lubricating oil can be added to the cavity inside the bearing through the oil injection pipe 6. An oil injection pipe cap 7 is installed on the top of the oil injection pipe 6. When lubricating oil needs to be added to the bearing later, the oil injection pipe cap 7 can be removed first, and then lubricating oil can be added to the cavity inside the bearing through the oil injection pipe 6. A total of six air guide cylinders 8 are arranged in a circular pattern on the outer wall of the retaining ring 3 on the left side of the inner ring 1. When the inner ring 1 rotates, it will drive the air guide cylinders 8 to rotate synchronously through the retaining ring 3. When the air guide cylinders 8 rotate, external air can enter the cavity inside them through the openings on the left side, and then these air will flow to the right and be discharged out through the openings on the right side of the air guide cylinders 8 to contact the bearing surface, thereby being able to cool the bearing. The outer ring 2 is installed in the bearing fixing seat 9, and the bearing fixing seat 9 is used to fix the position of the bearing.
[0030] In the embodiments of the present disclosure, such as Figure 2 、 Figure 4 andFigure 5 As shown in the figure, a circular track groove is provided on the outer side of the inner ring 1 and the inner side of the outer ring 2, and three circular grooves are equidistantly arranged in the circular track groove. When the bearing rotates, the inner ring 1 rotates inside the outer ring 2. At this time, the roller 4 rolls in the circular track grooves on the inner ring 1 and the outer ring 2, and a part of the lubricating oil enters the circular grooves in the circular track grooves on the inner ring 1 and the outer ring 2, so that the roller 4 can be fully lubricated, thus ensuring the lubrication effect.
[0031] In the embodiment of the present disclosure, as Figures 2 to 4 shown, a threaded hole corresponding to the outer side of the bottom of the oil injection pipe 6 is provided on the left side of the top of the outer ring 2, and a circular hole is provided on the left side of the top of the bearing fixing seat 9. During installation, the whole bearing can be pushed into the empty groove inside the bearing fixing seat 9, and the threaded hole on the left side of the top of the outer ring 2 is aligned with the circular hole on the left side of the top of the bearing fixing seat 9. Then, the bottom end of the oil injection pipe 6 can be passed through the circular hole on the left side of the top of the bearing fixing seat 9 and screwed into the threaded hole on the left side of the top of the outer ring 2. Therefore, the outer ring 2 can be firmly locked with the bearing fixing seat 9, avoiding the loosening of the bearing during use.
[0032] In the embodiment of the present disclosure, as Figures 1 to 3 and Figure 6 shown, two openings penetrating inside and outside are provided in the left part of the air guide cylinder 8, and two openings are also provided on the right side of the air guide cylinder 8. A rectangular partition is also provided inside the air guide cylinder 8. When the inner ring 1 rotates, it will drive the air guide cylinder 8 to rotate synchronously through the retaining ring 3. When the air guide cylinder 8 rotates, the external air can enter the inner cavity through the openings in the left part of the air guide cylinder 8, and then these air will flow to the right and be discharged outside through the openings on the right side of the air guide cylinder 8 to contact the bearing surface, so as to cool the bearing. Moreover, because the two openings in the left part of the air guide cylinder 8 face different directions, the air guide cylinder 8 can play a guiding effect when the bearing rotates forward and backward.
[0033] In the embodiment of the present disclosure, as Figure 1 and Figure 2 shown, when the outer ring 2 is installed inside the bearing fixing seat 9, the threaded hole on the left side of the top of the outer ring 2 coincides with the circular hole on the left side of the top of the bearing fixing seat 9 up and down, and the oil injection pipe 6 can pass through the circular hole on the left side of the top of the bearing fixing seat 9 and be screwed into the threaded hole on the left side of the top of the outer ring 2. During installation, the whole bearing can be pushed into the empty groove inside the bearing fixing seat 9, and the threaded hole on the left side of the top of the outer ring 2 is aligned with the circular hole on the left side of the top of the bearing fixing seat 9. Then, the bottom end of the oil injection pipe 6 can be passed through the circular hole on the left side of the top of the bearing fixing seat 9 and screwed into the threaded hole on the left side of the top of the outer ring 2. Therefore, the outer ring 2 can be firmly locked with the bearing fixing seat 9, avoiding the loosening of the bearing during use.
[0034] In the embodiment of the present disclosure, as Figures 1 to 3As shown, the outer diameter of the circular tube part of the oil injection pipe 6 is equal to the inner diameter of the left circular hole at the top of the bearing fixing seat 9, and a hexagonal block is also provided on the outer side of the oil injection pipe 6. Therefore, after the oil injection pipe 6 is tightened, the outer ring 2 can be firmly locked with the bearing fixing seat 9, and when the oil injection pipe 6 is rotated, it can be driven to rotate by cooperating with the hexagonal block on its outer side through a wrench.
[0035] Embodiment 2, on the basis of Embodiment 1, as Figures 1 to 6 shown, the openings on the left side of the air guide cylinder 8 are all located on the left side of the left outer wall of the bearing fixing seat 9, and the openings on the air guide cylinder 8 are also all located on the rotation track of the inner ring 1. When the inner ring 1 rotates, it will also drive the air guide cylinder 8 to rotate synchronously through the retaining ring 3. When the air guide cylinder 8 rotates, the external air can enter the cavity inside it through the openings on its left side, and then these air will flow to the right and be discharged out through the openings on the right side of the air guide cylinder 8 to contact the bearing surface, so as to be able to cool the bearing. Moreover, because the two openings on the left side of the air guide cylinder 8 face different directions, the air guide cylinder 8 can play a guiding effect when the bearing rotates forward and backward.
[0036] The working principle of this embodiment: During installation, the whole bearing can be pushed into the empty slot inside the bearing fixing seat 9, and the threaded hole on the top left of the outer ring 2 is aligned with the circular hole on the top left of the bearing fixing seat 9. At this time, the outer wall of the outer ring 2 will be in close contact with the inner wall of the bearing fixing seat 9. Then, the bottom end of the oil injection pipe 6 can be passed through the circular hole on the top left of the bearing fixing seat 9 and screwed into the threaded hole on the top left of the outer ring 2. Therefore, the outer ring 2 can be firmly locked with the bearing fixing seat 9 to prevent the bearing from loosening during use. When the oil injection pipe 6 is rotated, it can be driven to rotate by cooperating with the hexagonal block on its outer side through a wrench. When lubricating oil needs to be added to the bearing later, the oil injection pipe cap 7 can be removed first, and then lubricating oil can be added to the cavity inside the bearing through the oil injection pipe 6. When the bearing rotates, the inner ring 1 will rotate inside the outer ring 2. At this time, the rollers 4 will roll in the annular track grooves on the inner ring 1 and the outer ring 2, and at the same time, the cage 5 will keep the position of the rollers 4 to prevent the rollers 4 from colliding and rubbing against each other. And a part of the lubricating oil will enter the annular grooves in the annular track grooves on the inner ring 1 and the outer ring 2, so that the rollers 4 can be fully lubricated, thus ensuring the lubrication effect. The retaining ring 3 can seal both sides of the bearing to prevent dust from entering the bearing. And when the inner ring 1 rotates, it will also drive the air guide cylinder 8 to rotate synchronously through the retaining ring 3. When the air guide cylinder 8 rotates, the external air can enter the cavity inside it through the openings on its left side, and then these air will flow to the right and be discharged out through the openings on the right side of the air guide cylinder 8 to contact the bearing surface, so as to be able to cool the bearing. Moreover, because the two openings on the left side of the air guide cylinder 8 face different directions, the air guide cylinder 8 can play a guiding effect when the bearing rotates forward and backward.
[0037] In this document, the following points need attention:
[0038] 1. The accompanying drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.
[0039] 2. Without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.
[0040] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should be covered by the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.
Claims
1. Automobile half-axle bearings, including: The inner ring (1) is characterized by: An outer ring (2) is mounted on the outer side of the inner ring (1); a retaining ring (3) is fixed on both the left and right sides of the inner ring (1); a total of eight rollers (4) are arranged between the inner ring (1) and the outer ring (2), and a retaining frame (5) is arranged on the outer side of the roller (4); an oil filling pipe (6) is mounted on the left side of the top of the outer ring (2); an oil filling pipe cap (7) is mounted on the top of the oil filling pipe (6); a total of six air guide tubes (8) are arranged in a ring shape on the outer wall of the retaining ring (3) on the left side of the inner ring (1); and the outer ring (2) is mounted in a bearing fixing seat (9).
2. The automobile half-shaft bearing according to claim 1, characterized in that: A threaded hole corresponding to the outer thread of the bottom of the oil filling pipe (6) is provided on the left side of the top of the outer ring (2), and a round hole is provided on the left side of the top of the bearing fixing seat (9).
3. The automobile half-shaft bearing according to claim 1, characterized in that: When the outer ring (2) is installed on the inner side of the bearing fixing seat (9), the threaded hole on the left side of its top will overlap with the circular hole on the left side of the top of the bearing fixing seat (9), and the oil filling pipe (6) can pass through the circular hole on the left side of the top of the bearing fixing seat (9) and be screwed into the threaded hole on the left side of the top of the outer ring (2).
4. The automobile half-shaft bearing according to claim 1, characterized in that: The outer diameter of the circular tube portion of the oil filling pipe (6) is equal to the inner diameter of the circular hole on the left side of the top of the bearing fixing seat (9), and a hexagonal block is also provided on the outer side of the oil filling pipe (6).
5. The automobile half-shaft bearing according to claim 1, characterized in that: An annular track groove is provided on the outer side of the inner ring (1) and the inner side of the outer ring (2), and three annular grooves are provided in the annular track groove at equal intervals.
6. The automobile half-shaft bearing according to claim 1, characterized in that: The left side of the air guide tube (8) is provided with two openings that penetrate inside and outside, the right side of the air guide tube (8) is also provided with two openings, and a rectangular partition is also provided on the inside of the air guide tube (8).
7. The automobile half-shaft bearing according to claim 1, characterized in that: The openings on the left side of the air guide cylinder (8) are all located on the left side of the left outer wall of the bearing fixing seat (9), and the openings on the air guide cylinder (8) are also all located on the rotation trajectory of the inner ring (1).