Quick dismounting structure of automobile welding bearing retainer

Abstract

The utility model relates to the technical field of bearings, and discloses a quick dismounting structure of an automobile welding bearing retainer, which comprises an outer ring, a plurality of balls in contact with the inner wall of the outer ring, two support frames in contact with the outer walls of the balls, and springs fixedly connected outside the support frames. Wherein the other end of one spring is fixedly connected with a first retainer, the other end of the other spring is fixedly connected with a second retainer, the outer walls of the balls are in contact with an inner ring, the outer portion of the inner ring is connected with a protection assembly in a buckled mode, and the top of the inner ring is in threaded connection with a quick release assembly. According to the utility model, one end, far away from the retainer I and the retainer II, of the spring is fixedly connected with the support frame, the support frame and the spring support the balls, and the support frame and the spring can enable the balls to bear load more uniformly, avoid local stress concentration, enhance the bearing capacity of the bearing and improve the reliability of an automobile under the working conditions of heavy load, high-speed driving and the like.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, and in particular to a quick-release structure for automotive welded bearing retainers. Background Technology

[0002] Automotive welded bearing retainers play a crucial role in automotive transmission systems, supporting rolling bearings and guiding their rotation. Their structure is typically formed by welding multiple metal sheets, making them durable. However, when repairing and replacing bearings, existing welded structures often require complex disassembly procedures, such as cutting and hammering, which are cumbersome, inefficient, and prone to damaging surrounding components.

[0003] Automotive welded bearing retainers are made from sheet metal through processes such as stamping and welding. The basic structure includes a ring-shaped body that surrounds the balls or rollers of the bearing. The body has evenly distributed pockets for precisely positioning and isolating the balls or rollers, preventing them from colliding and rubbing against each other, and ensuring smooth bearing operation. Furthermore, to enhance structural strength and stability, the retainer may also have reinforcing ribs, bosses, and other structural designs.

[0004] When a bearing retainer malfunctions or is damaged, the lack of a quick-release mechanism makes disassembly complex and time-consuming. Other components connected to the bearing, such as the shaft and hub, must be removed before the bearing can be taken out as a whole and the retainer replaced. This significantly increases maintenance time and workload, leading to prolonged vehicle downtime and impacting operational efficiency. Therefore, a quick-release structure for automotive welded bearing retainers is proposed to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a quick-disassembly structure for automotive welded bearing retainers, aiming to improve the problem of excessive replacement time and reduced efficiency in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A quick-release structure for an automotive welded bearing retainer includes an outer ring, with multiple balls in contact with the inner wall of the outer ring, and two support frames in contact with the outer walls of the balls. A spring is fixedly connected to the outside of each support frame, with one spring having a retainer fixedly connected to one end at its other end, and a retainer fixedly connected to the other end of the spring. An inner ring is in contact with the outer wall of each ball, and a protective assembly is snap-fitted to the outside of the inner ring. A quick-release assembly is threaded onto the top.

[0008] As a further description of the above technical solution:

[0009] The protective component includes a sealing ring, the outer wall of the inner ring has two slots, the inner wall of the sealing ring is rotatably connected to the inner wall of the slots, and the outer wall of the sealing ring has a positioning groove.

[0010] As a further description of the above technical solution:

[0011] The inner ring has two limiting grooves inside, and the inner part of the retainer is rotatably connected to the outside of the inner ring.

[0012] As a further description of the above technical solution:

[0013] The quick-release assembly includes a screw, the outer wall of which is threadedly connected to the inner wall of the retainer, and a nut is threadedly connected to the bottom of the screw.

[0014] As a further description of the above technical solution:

[0015] The outer wall of the screw is threaded into the interior of the second retainer, and the interior of the second retainer rotates outside the inner ring;

[0016] As a further description of the above technical solution:

[0017] The inner wall of the outer ring is provided with a groove, and the outer wall of the inner ring is provided with a sliding groove;

[0018] As a further description of the above technical solution:

[0019] The outer ring is rotatably connected to the inner wall of the positioning groove, and the sealing ring is made of rubber. As a further description of the above technical solution:

[0020] The tops of the plurality of nuts are in contact with the outer wall of the second retainer, and the outer ring is made of high-strength alloy steel.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the end of the spring away from the first and second cages is fixedly connected to the support frame. They support the ball bearing. The support frame and the spring enable the ball bearing to bear the load more evenly, avoid local stress concentration, enhance the bearing capacity of the bearing, and improve the reliability of the automobile under heavy load and high speed conditions.

[0023] 2. In this utility model, the groove on the outer wall of the inner ring fixes the sealing ring in place, and the other end of the sealing ring is stuck in the outer ring to protect the internal components from impurities entering, reduce the loss of lubricating oil, and improve the sealing performance. Attached Figure Description

[0024] Figure 1This is a three-dimensional schematic diagram of the quick-disassembly structure of the automotive welded bearing retainer proposed in this utility model.

[0025] Figure 2 This is a schematic diagram of the outer ring of the quick-release structure for the automotive welded bearing retainer proposed in this utility model.

[0026] Figure 3 This is a schematic diagram of the cage of the quick-release structure for the automotive welded bearing retainer proposed in this utility model;

[0027] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0028] Legend:

[0029] 1. Outer ring; 2. Limiting groove; 3. Ball bearing; 4. Support frame; 5. Spring; 6. Cage one; 7. Cage two; 8. Screw; 9. Nut; 10. Inner ring; 11. Slot; 12. Sealing ring; 13. Positioning groove. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of a quick-release structure for an automotive welded bearing retainer, comprising an outer ring 1, which is typically made of high-strength alloy steel, possessing excellent wear resistance and compressive strength, capable of withstanding the enormous pressure and friction generated by various working conditions during vehicle operation, ensuring that it will not easily deform or be damaged during long-term use. The inner wall of the outer ring 1 is in contact with multiple balls 3, which are generally made of high-quality bearing steel, and their surfaces are finely ground, possessing extremely high smoothness and hardness. When the vehicle is in motion, the balls 3 can roll flexibly between the inner and outer rings 1, effectively reducing frictional resistance, enabling the rotating parts of the vehicle to operate more smoothly, reducing energy loss, and improving the power transmission efficiency of the vehicle. The outer wall of the balls 3 is in contact with two support frames 4.

[0032] The two support frames 4 are made of high-strength engineering plastics or metal alloys, which have good toughness and rigidity. The support frames 4 can provide stable support for the balls 3. Working together with the springs 5, the balls 3 can bear the load more evenly, avoid local stress concentration, and enhance the bearing capacity and reliability of the bearing under heavy load and high speed conditions, ensuring the smoothness of the vehicle. The support frames 4 are externally fixedly connected to the springs 5. The springs 5 ​​are made of high-elasticity steel and have undergone special heat treatment process, which has good elasticity and fatigue life. During the operation, the springs 5 ​​can automatically adjust the support force on the balls 3 according to the pressure and movement state of the balls 3, always keeping the balls 3 in a suitable position, further improving the stability and reliability of the bearing. One of the springs 5 ​​is fixedly connected to the other end of the cage 6.

[0033] Cage 6 is typically made of metal or high-strength plastic, possessing a certain strength and toughness. It accurately transmits the force of spring 5 to the balls 3, while also positioning and isolating the balls 3 to prevent them from colliding and rubbing against each other, ensuring the internal motion order of the bearing and extending its service life. The top of cage 6 is threaded with screw 8, which is generally made of high-strength carbon steel with a rust-proof surface treatment, exhibiting good corrosion resistance and mechanical properties. Through the cooperation of screw 8 and nut 9, cage 6 and cage 7 can be easily and quickly fixed and disassembled. When it is necessary to repair or replace bearing components, it can greatly improve work efficiency and save repair time and costs. The bottom of screw 8 is threaded with nut 9.

[0034] Nut 9 and screw 8 are made of the same material and fit together tightly to provide sufficient fastening force. Cage 1 6 and cage 2 7 maintain a stable connection during vehicle operation and will not loosen due to vibration or other external forces, ensuring the normal operation of the bearing. The outer wall of ball 3 is in contact with inner ring 10, which is also made of high-strength alloy steel and matches the outer ring 1. It has good wear resistance and dimensional stability. During vehicle operation, inner ring 10 fits tightly with the vehicle's welded shaft and rotates with the shaft, transferring the load on the shaft to ball 3 to achieve smooth power transmission of the vehicle. The outer snap-fit ​​of inner ring 10 is connected to a protective component.

[0035] The other end of the spring 5 is fixedly connected to a cage 7. The cage 7 is similar in material and function to the cage 6, and can also fix and support the spring 5, and play a role in positioning and isolating the balls 3, which further ensures the stability of the internal structure of the bearing and the orderly movement, and improves the overall performance and reliability of the bearing. The screw 8 is threaded on the outside of the cage 7. Through the threaded connection between the screw 8 and the cage 7, the cage 6 and the cage 7 can be firmly connected together. At the same time, when disassembly is required, the two can be separated easily and quickly, which facilitates the maintenance and replacement of the internal components of the bearing, and improves the maintenance convenience and operability of the bearing.

[0036] Reference Figure 1 and Figure 2 The protective component includes a sealing ring 12, which is made of oil-resistant and wear-resistant rubber material. It has good elasticity and sealing performance, which can effectively prevent external impurities from entering the bearing, reduce the loss of internal lubricating oil, maintain a good lubrication environment inside the bearing, extend the service life of the bearing, and improve the working performance and reliability of the bearing. The outer wall of the inner ring 10 has two slots 11. The design of the two slots 11 can accurately position the sealing ring 12, ensuring that the sealing ring 12 will not shift or loosen after installation, thereby ensuring the stability and reliability of the sealing effect. The inner wall of the sealing ring 12 is fixedly connected to the inner wall of the slot 11.

[0037] Through this tight connection, the sealing ring 12 can be snapped onto the inner ring 10. During the vehicle's operation, even when subjected to external forces such as vibration and impact, it can always maintain a good sealing state, effectively protecting the internal components of the bearing from the influence of the external environment. The outer wall of the sealing ring 12 has a positioning groove 13. The design of the positioning groove 13 matches the internal structure of the outer ring 1, enabling the outer ring 1 to be accurately embedded in the positioning groove 13, further improving the overall assembly accuracy and stability of the bearing, ensuring the correct installation position of the sealing ring 12 inside the bearing, and guaranteeing the reliability of the sealing effect. The inner wall of the outer ring 1 is fixedly connected to the inner wall of the positioning groove 13.

[0038] The inner ring 10 has two limiting grooves 2 inside. The design of the two limiting grooves 2 can fit the shape of the outer wall of the automotive welding shaft. When the automotive welding shaft is placed in the inner ring 10, the outer wall is locked in the limiting grooves 2, which facilitates the fixation of the shaft and makes it less likely to fall off during rotation. This improves the stability and reliability of the automotive power transmission. The cage 6 is internally rotatably connected to the outside of the inner ring 10. This rotatable connection allows the cage 6 to rotate freely with the rotation of the inner ring 10, while maintaining effective support and positioning for the balls 3. This ensures that the balls 3 can roll smoothly between the inner ring 10 and the outer ring 1, reducing energy loss and improving the working efficiency of the bearing.

[0039] Reference Figures 1 to 3 The internal rotation of cage 2 7 is outside the inner ring 10. This rotational connection of cage 2 7, like cage 1 6, allows it to rotate flexibly with the rotation of the inner ring 10. Working together with cage 1 6, it provides stable support and guidance for the balls 3, ensuring that the bearing can work normally during vehicle operation and guaranteeing the smoothness and reliability of vehicle power transmission. The inner wall of outer ring 1 is provided with grooves, and the outer wall of inner ring 10 is provided with grooves. The grooves on the inner wall of outer ring 1 and the outer wall of inner ring 10 provide a precise rolling track for the balls 3, ensuring that the balls 3 always remain in the correct position during rolling, reducing the offset and wobble of the balls 3, improving the operating accuracy and stability of the bearing, and ensuring the smooth operation of rotating parts during vehicle operation.

[0040] Working principle: The automotive welding shaft is placed in the inner ring 10 and locked in the limiting groove 2 for easy fixation. It is not easy to come off during rotation. The nut 9 connected to the internal screw 8 fixes the first cage 6 and the second cage 7. The inner walls of the first cage 6 and the second cage 7 are fixedly connected to the spring 5. The end of the spring 5 away from the first cage 6 and the second cage 7 is fixedly connected to the support frame 4. They support the ball 3. The support frame 4 and the spring 5 can make the ball 3 bear the load more evenly, avoid local stress concentration, enhance the bearing capacity, and improve the reliability of the car under heavy load and high speed conditions.

[0041] The groove 11 on the outer wall of the inner ring 10 engages and fixes the sealing ring 12. The other end of the sealing ring 12 is engaged in the outer ring 1, protecting the internal components. It has good elasticity and sealing performance, which can effectively prevent external impurities from entering the bearing, reduce the loss of internal lubricating oil, maintain a good lubrication environment inside the bearing, extend the service life of the bearing, and improve the working performance and reliability of the bearing.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. Quick release structure for the bearing retainer of a welded axle of a vehicle, comprising an outer ring (1), characterized in that: The inner wall of the outer ring (1) is in contact with a plurality of balls (3), the outer wall of the ball (3) is in contact with two support frames (4), the outer part of the support frame (4) is fixedly connected with a spring (5), one end of one of the spring (5) is fixedly connected with a cage one (6), the other end of the spring (5) is fixedly connected with a cage two (7), the outer wall of the ball (3) is in contact with an inner ring (10), the outer part of the inner ring (10) is snap connected with a protection assembly, the top of the (6) is threadedly connected with a quick release assembly.

2. The quick release structure for a bearing retainer of an automotive welding axle according to claim 1, characterized by: The protection assembly comprises a sealing ring (12), the outer wall of the inner ring (10) is provided with two clamping grooves (11), the inner wall of the sealing ring (12) is rotatably connected with the inner wall of the clamping groove (11), and the outer wall of the sealing ring (12) is provided with a positioning groove (13).

3. The quick disconnect of an automotive welded axle bearing retainer of claim 2, wherein: The inner part of the inner ring (10) is provided with two limiting grooves (2), and the inner part of the cage one (6) is rotatably connected with the outer part of the inner ring (10).

4. The quick disconnect of an automotive welded axle bearing retainer of claim 1, wherein: The quick release assembly comprises a screw (8), the outer wall of the screw (8) is threadedly connected with the inner wall of the cage one (6), and the bottom of the screw (8) is threadedly connected with a nut (9).

5. The quick disconnect of an automotive welded axle bearing retainer of claim 4, wherein: The outer wall of the screw (8) is threadedly connected with the inner part of the cage two (7), and the inner part of the cage two (7) is rotatably connected with the outer part of the inner ring (10).

6. The quick disconnect structure for a vehicle welded axle bearing retainer of claim 1 wherein: The inner wall of the outer ring (1) is provided with a groove, and the outer wall of the inner ring (10) is provided with a sliding groove.

7. The quick disconnect of an automotive welded axle bearing retainer of claim 2, wherein: The inner wall of the outer ring (1) is rotatably connected with the inner wall of the positioning groove (13), and the sealing ring (12) is made of rubber.

8. The quick disconnect of an automotive welded axle bearing retainer of claim 5, wherein: The top of the plurality of nuts (9) is in contact with the outer wall of the cage two (7), and the outer ring (1) is made of high-strength alloy steel.

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