Hub bearing structure with friction disc

Abstract

The utility model relates to a hub bearing structure with a friction disc, which belongs to the technical field of bearing assemblies and comprises a hub bearing, the friction disc is arranged on the hub bearing, and a pair of semicircular limit snap rings connected with the hub bearing in a clamping groove manner is arranged at the front end of the friction disc. The hub bearing comprises a hub flange plate, and a spline shaft sleeve movably connected with the hub flange plate in a sleeved mode is arranged in the hub flange plate. The friction disc comprises a steel disc, and paper-based linings are arranged at the two ends of the steel disc. The device has the characteristics of simple structure, good operation stability and convenience in assembly. The problem of mounting the friction disc on the hub unit is solved. And the friction disc is additionally arranged on the hub bearing for auxiliary braking, so that the failure of a braking system is avoided.

Description

Technical Field

[0001] This utility model relates to the field of bearing assembly technology, specifically to a hub bearing structure with a friction disc. Background Technology

[0002] The wheel hub unit, also known as the wheel hub bearing, is one of the key components of an automobile. Its main function is to bear weight and provide precise guidance for the rotation of the wheel hub, which requires it to withstand not only axial loads but also radial loads. The wheel hub bearing unit was developed based on standard angular contact ball bearings and tapered roller bearings. It integrates two sets of bearings into one unit, offering advantages such as good assembly performance, elimination of clearance adjustment, light weight, compact structure, large load capacity, pre-lubrication as a sealed bearing, elimination of external hub seals, and maintenance-free operation. It is widely used in passenger cars and is showing a growing trend of application in heavy-duty trucks.

[0003] Friction discs are crucial components in mechanical transmission systems, widely used in marine power transmission systems, vehicle transmission systems, agricultural and engineering machinery transmission systems, general mechanical transmission systems, as well as braking systems for military and civilian aircraft, vehicles and motorcycles, and wet axle braking systems for engineering and mining applications. The friction disc structure includes a friction clutch and a friction brake, and it is critical to the reliability of power transmission and control in ships or vehicles. Summary of the Invention

[0004] This invention primarily addresses the shortcomings of existing technologies by providing a wheel hub bearing structure with a friction disc. This structure is characterized by its simple structure, good operational stability, and convenient assembly. It solves the problem of installing a friction disc on the wheel hub unit. Furthermore, it improves the safety and reliability of vehicle braking by adding a friction disc to the wheel hub bearing for auxiliary braking, thus preventing brake system failure.

[0005] The above-mentioned technical problems of this utility model are mainly solved by the following technical solutions:

[0006] A hub bearing structure with a friction disc includes a hub bearing, on which a friction disc is provided. The front end of the friction disc has a pair of semi-circular retaining rings that are grooved and connected to the hub bearing. The hub bearing includes a hub flange, and a splined bushing is movably fitted inside the hub flange. The friction disc comprises a steel disc, with paper-based linings at both ends.

[0007] Preferably, a pair of symmetrically distributed inner rings are provided between the hub flange and the spline bushing. Both the inner rings and the hub flange are provided with a retainer. The retainer contains a number of steel balls arranged in a ring and movably engaged with the retainer.

[0008] Preferably, the hub flange is provided with multi-lip skeleton sealing rings at both ends and between the inner ring.

[0009] Preferably, the paper-based liner has a plurality of rivet holes arranged in annular staggered pattern, and an oil groove is provided between two adjacent rivet holes.

[0010] Preferably, the rivet hole is provided with rivets for riveting and fixing the paper-based liner to the steel disc.

[0011] This invention can achieve the following effects:

[0012] This invention provides a wheel hub bearing structure with a friction disc, which, compared with existing technologies, features a simple structure, good operational stability, and convenient assembly. It solves the problem of installing a friction disc on the wheel hub unit. It improves the safety and reliability of vehicle braking by adding a friction disc to the wheel hub bearing for auxiliary braking, preventing brake system failure. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a structural cross-sectional view of the present invention.

[0015] Figure 3 This is a schematic diagram of the friction plate in this utility model.

[0016] In the diagram: 1. Friction disc; 2. Limiting ring; 3. Hub bearing; 4. Paper-based liner; 5. Rivet; 6. Steel disc; 7. Hub flange; 8. Multi-lip skeleton seal; 9. Spline bushing; 10. Inner ring; 11. Cage; 12. Steel ball; 13. Rivet hole; 14. Oil groove. Detailed Implementation

[0017] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0018] Example: Figure 1 , Figure 2 and Figure 3As shown, a hub bearing structure with a friction disc includes a hub bearing 3, on which a friction disc 1 is provided. A pair of semi-circular retaining rings 2 are provided at the front end of the friction disc 1 and are connected to the hub bearing 3 via a slot. The hub bearing 3 includes a hub flange 7, within which a splined bushing 9 is movably fitted. A pair of symmetrically distributed inner rings 10 are provided between the hub flange 7 and the splined bushing 9. Multi-lip skeleton sealing rings 8 are provided between both ends of the hub flange 7 and the inner rings 10. Both the inner rings 10 and the hub flange 7 are provided with cages 11, each containing 10 annularly distributed steel balls 12 that are movably engaged with the cage 11. The friction disc 1 includes a steel disc 6, with paper-based linings 4 at both ends of the steel disc 6. The paper-based linings 4 have 18 rivet holes 13 arranged in annular staggered pattern. An oil groove 14 is provided between two adjacent rivet holes 13. Rivets 5 are provided in the rivet holes 13 for riveting and fixing the paper-based linings 4 and the steel disc 6.

[0019] In summary, this wheel hub bearing structure with friction disc features simple structure, good operational stability, and convenient assembly. It solves the problem of installing friction discs on the wheel hub unit. It improves the safety and reliability of vehicle braking by adding a friction disc to the wheel hub bearing for auxiliary braking, thus preventing brake system failure.

[0020] It will be apparent to those skilled in the art that this invention is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the essential characteristics of the invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0021] In summary, the above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A hub bearing structure with a friction disc, characterized in that: The device includes a hub bearing (3), on which a friction disc (1) is provided. The front end of the friction disc (1) is provided with a pair of semi-circular limiting rings (2) that are connected to the hub bearing (3) in a slotted manner. The hub bearing (3) includes a hub flange (7), and a spline bushing (9) that is movably sleeved with the hub flange (7) is provided inside the hub flange (7). The friction disc (1) includes a steel disc (6), and both ends of the steel disc (6) are provided with paper-based linings (4).

2. The hub bearing structure with friction disc according to claim 1, characterized in that: The hub flange (7) and the spline bushing (9) are provided with a pair of symmetrically distributed inner rings (10). Both the inner rings (10) and the hub flange (7) are provided with cages (11). The cages (11) contain a number of steel balls (12) that are arranged in a ring and are movably embedded in the cages (11).

3. The hub bearing structure with friction disc according to claim 2, characterized in that: The hub flange (7) is provided with multi-lip skeleton sealing rings (8) at both ends and between the inner ring (10).

4. The hub bearing structure with friction disc according to claim 1, characterized in that: The paper-based liner (4) is provided with a number of rivet holes (13) arranged in annular staggered pattern, and an oil groove (14) is provided between two adjacent rivet holes (13).

5. The hub bearing structure with friction disc according to claim 4, characterized in that: The rivet hole (13) is provided with a rivet (5) for riveting and fixing the paper base liner (4) and the steel disc (6).

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