Hub bearing with corrosion resistance

Abstract

The utility model relates to the technical field of hub bearings, and discloses a corrosion-resistant hub bearing which comprises an outer ring, an annular groove is formed in the middle of the outer wall of the outer ring, a plurality of sets of through holes are evenly formed in the periphery of the middle of the outer ring, a sealing gasket is arranged on the inner wall of the annular groove in a clamped mode, and a plurality of oil injection ports are formed in the periphery of the middle of the sealing gasket. The middle of the inner wall of the outer ring is rotationally connected with an inner ring; the annular groove is formed in the middle of the outer ring, after the sealing gasket is connected into the annular groove, lubricating oil can be injected into the annular groove through the oil injection port, the annular groove can store the lubricating oil, it is ensured that the bearing is always kept in a proper lubricating state in the running process, and therefore friction and abrasion are reduced; and the sealing gasket can be shifted to enable lubricating oil to infiltrate all positions of the annular groove, and the lubricating oil flows to the outer walls of the balls through the through holes to lubricate the balls, so that the smoothness of the operation process is ensured.

Description

Technical Field

[0001] This utility model relates to the field of wheel hub bearing technology, specifically a corrosion-resistant wheel hub bearing. Background Technology

[0002] Wheel bearings are a key component of automobiles. Their main function is to bear weight and provide precise guidance for the rotation of the wheel hub. They bear both axial loads (such as the lateral force or impact force of the tires when turning) and radial loads (such as the weight of the vehicle). Wheel bearings connect the tire (or brake disc) to the steering knuckle (or axle) and are one of the important components of the automobile chassis (suspension area).

[0003] When wheel hub bearings are exposed to humid, acidic, or alkaline environments for extended periods, oxidation and corrosion can occur on the bearing surface, affecting the bearing's service life and performance. Furthermore, if wheel hub bearings are not maintained and cared for in a timely manner, the rate of corrosion will be accelerated. Prolonged high-speed operation can lead to fatigue in rolling bearings, thereby reducing their corrosion resistance. Fatigue can cause changes in the microstructure of the bearing material, resulting in cracks and defects, which provide conditions for the intrusion of corrosive media.

[0004] Therefore, a corrosion-resistant hub bearing is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a corrosion-resistant wheel hub bearing to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a corrosion-resistant wheel hub bearing, comprising an outer ring, an annular groove formed in the middle of the outer wall of the outer ring, several sets of through holes evenly formed around the middle of the outer ring, a sealing gasket snapped onto the inner wall of the annular groove, several oil filling ports formed around the middle of the sealing gasket, and an inner ring rotatably connected to the middle of the inner wall of the outer ring.

[0007] Preferably, the inner wall of the outer ring is provided with a support frame, and a plurality of ball bearings are evenly slidably connected around the middle of the inner wall of the support frame.

[0008] Preferably, the outer wall edges on both sides of the inner ring are provided with a first snap-fit ​​groove, and the inner wall edges on both sides of the outer ring are provided with a second snap-fit ​​groove.

[0009] Preferably, the inner walls of both the first and second snap-fit ​​grooves on both sides are fitted with protective plates, and the inner diameters of the first and second snap-fit ​​grooves match the thickness of the protective plates.

[0010] Preferably, several oil drain holes are evenly opened around the middle of the protective plates on both sides, and the upper and lower sides of the outer walls of the oil drain holes on both sides are fixedly connected with levers.

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

[0012] 1. By creating an annular groove in the middle of the outer ring, lubricating oil can be injected into the annular groove through the oil inlet after the sealing gasket is inserted into the annular groove. The annular groove can store lubricating oil, ensuring that the bearing always maintains proper lubrication during operation, thereby reducing friction and wear. The sealing gasket can be moved to allow the lubricating oil to wet all positions of the annular groove and flow to the outer wall of the ball through each set of through holes to lubricate it, ensuring smooth operation. The lubricating oil can be replenished through the oil inlet, making maintenance more convenient, reducing the need to disassemble the bearing, and improving maintenance efficiency. The design of the sealing gasket can effectively prevent external contaminants (such as dust, moisture, etc.) from entering the bearing, protecting the cleanliness of the lubricating oil, and further improving the reliability of the bearing.

[0013] 2. By installing removable protective plates in the middle of both sides of the overall bearing structure, the support frame and ball structure between the inner and outer rings are protected. Good protective design can reduce wear and corrosion inside the bearing, extend the service life of the bearing, and reduce the failure rate. The design of the protective plates makes maintenance work more convenient, allowing for quick disassembly and replacement, reducing the need to disassemble the bearing and improving maintenance efficiency. The protective plates can effectively prevent internal parts of the bearing from falling off or flying out, improving the safety and stability of the equipment. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is an internal schematic diagram of the overall structure of this utility model;

[0016] Figure 3 This is a schematic diagram showing the partial disassembled structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the vertical cross-section of the outer ring of this utility model.

[0018] In the picture:

[0019] 1. Outer ring; 2. Annular groove; 3. Through hole; 4. Sealing gasket; 5. Oil inlet; 6. Inner ring; 7. Support frame; 8. Ball bearing; 9. Snap-fit ​​groove one; 10. Snap-fit ​​groove two; 11. Protective plate; 12. Oil drain hole; 13. Pulley. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1 to 4 An embodiment of this utility model is provided: a corrosion-resistant wheel hub bearing, including an outer ring 1, an annular groove 2 is provided in the middle of the outer wall of the outer ring 1, a number of through holes 3 are evenly provided around the middle of the outer ring 1, a sealing gasket 4 is snapped onto the inner wall of the annular groove 2, a number of oil injection ports 5 are provided around the middle of the sealing gasket 4, and an inner ring 6 is rotatably connected to the middle of the inner wall of the outer ring 1.

[0022] Among them: the annular groove 2 and the sealing gasket 4 are correspondingly snapped together, and the oil injection port 5 passes through the sealing gasket 4 and is connected to the outer ring 1;

[0023] Even better: The sealing gasket 4 is fitted into the middle of the annular groove 2. Lubricating oil can be injected into the inner wall of the annular groove 2 via an oil pipe connected to the middle of the oil inlet 5. The lubricating oil then flows through the through holes 3 to the inner wall between the outer ring 1 and the inner ring 6, lubricating and cooling the entire bearing structure during operation. The annular groove 2 can store lubricating oil, ensuring the bearing maintains proper lubrication during operation, thus reducing friction and wear. The sealing gasket 4 can be moved to allow lubricating oil to permeate all parts of the annular groove 2 and flow through the through holes 3 to the outer wall of the balls 8 for lubrication, ensuring smooth operation. Lubricating oil can be replenished through the oil inlet 5, making maintenance more convenient, reducing the need to disassemble the bearing, and improving maintenance efficiency. The design of the sealing gasket 4 effectively prevents external contaminants (such as dust and moisture) from entering the bearing, protecting the cleanliness of the lubricating oil and further improving the reliability of the bearing.

[0024] The inner wall of the outer ring 1 is provided with a support frame 7. Several balls 8 are evenly slidably connected around the middle of the inner wall of the support frame 7. The outer wall edges on both sides of the inner ring 6 are provided with a snap-fit ​​groove 9. The inner wall edges on both sides of the outer ring 1 are provided with a snap-fit ​​groove 10. The inner walls of the snap-fit ​​groove 9 and the snap-fit ​​groove 10 on both sides are snapped with protective plates 11. The inner diameter of the snap-fit ​​groove 9 and the snap-fit ​​groove 10 matches the thickness of the protective plate 11. Several oil drain holes 12 are evenly opened around the middle of the protective plates 11 on both sides. The upper and lower sides of the outer walls of the oil drain holes 12 on both sides are fixedly connected with levers 13.

[0025] Among them: the two side snap-fit ​​grooves 9 and 10 are symmetrically arranged along the center line of the outer ring 1;

[0026] Even better: The outer walls of the two protective plates 11 are respectively inserted into the inner walls of the two side snap-fit ​​grooves 9 and 10, protecting the support frame 7 and ball 8 structure between the inner ring 6 and the outer ring 1. Good protective design can reduce wear and corrosion inside the bearing, extend the service life of the bearing, and reduce the failure rate. The design of the protective plate 11 makes maintenance work more convenient, allowing for quick disassembly and replacement, reducing the need to disassemble the bearing and improving maintenance efficiency. The setting of the protective plate 11 can effectively prevent the parts inside the bearing from falling off or flying out, improving the safety and stability of the equipment. Furthermore, the lubricating oil stored between the inner ring 6 and the outer ring 1 can be discharged along the oil drain holes 12 in the middle of the protective plate 11 after it has played its role, avoiding long-term accumulation. The setting of the lever 13 plays an auxiliary role in the disassembly and assembly of the two protective plates 11.

[0027] The working principle of the above implementation is as follows:

[0028] The operation steps are as follows:

[0029] First, the sealing gasket 4 is fitted into the middle of the annular groove 2. Lubricating oil is injected into the inner wall of the annular groove 2 through the oil inlet 5 connected to the oil pipe. The lubricating oil then flows through the through holes 3 to the inner wall between the outer ring 1 and the inner ring 6 to lubricate and cool the bearing structure during operation. The annular groove 2 can store lubricating oil to ensure that the bearing always maintains proper lubrication during operation, thereby reducing friction and wear. The sealing gasket 4 can be moved to allow the lubricating oil to penetrate to various positions of the annular groove 2 and flow through the through holes 3 to the outer wall of the ball 8 for lubrication, ensuring smooth operation. The lubricating oil is replenished through the oil inlet 5, making maintenance more convenient, reducing the need to disassemble the bearing, and improving maintenance efficiency.

[0030] The design of the sealing gasket 4 can effectively prevent external contaminants (such as dust, moisture, etc.) from entering the bearing, protect the cleanliness of the lubricating oil, and further improve the reliability of the bearing. The outer walls of the two protective plates 11 are respectively inserted into the inner walls of the two side snap-fit ​​grooves 9 and 10, which protect the support frame 7 and ball 8 structure between the inner ring 6 and the outer ring 1. The good protective design can reduce wear and corrosion inside the bearing, extend the service life of the bearing, and reduce the failure rate. The design of the protective plate 11 makes maintenance work more convenient, and it can be quickly disassembled and replaced, reducing the need to disassemble the bearing and improving maintenance efficiency.

[0031] The protective plate 11 can effectively prevent the parts inside the bearing from falling off or flying out, improving the safety and stability of the equipment. The lubricating oil stored between the inner ring 6 and the outer ring 1 can be discharged through the oil drain holes 12 in the middle of the protective plate 11 after it has played its role, avoiding long-term accumulation. The setting of the lever 13 plays an auxiliary role in the disassembly and assembly of the protective plates 11 on both sides.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A corrosion-resistant hub bearing, characterized in that: The outer ring (1) includes an outer ring (1), an annular groove (2) is provided in the middle of the outer wall of the outer ring (1), a number of through holes (3) are evenly provided around the middle of the outer ring (1), a sealing gasket (4) is snapped onto the inner wall of the annular groove (2), a number of oil filling ports (5) are provided around the middle of the sealing gasket (4), and an inner ring (6) is rotatably connected to the middle of the inner wall of the outer ring (1).

2. A corrosion-resistant hub bearing according to claim 1, characterized in that: The inner wall of the outer ring (1) is provided with a support frame (7), and a number of ball bearings (8) are evenly slidably connected around the middle of the inner wall of the support frame (7).

3. A corrosion-resistant hub bearing according to claim 2, characterized in that: The inner ring (6) has a snap-fit ​​groove 1 (9) on both sides of the outer wall edge, and the outer ring (1) has a snap-fit ​​groove 2 (10) on both sides of the inner wall edge.

4. A corrosion-resistant wheel hub bearing according to claim 3, characterized in that: The inner walls of the first (9) and the second (10) of the two sides are fitted with protective plates (11), and the inner diameters of the first (9) and the second (10) match the thickness of the protective plates (11).

5. A corrosion-resistant wheel hub bearing according to claim 4, characterized in that: Several oil drain holes (12) are evenly opened around the middle of the protective plates (11) on both sides, and the upper and lower sides of the outer walls of the oil drain holes (12) on both sides are fixedly connected with levers (13).

Images