Hub unit assembly with steel belt locking structure

Abstract

The utility model relates to a hub unit assembly with a steel belt locking structure, which belongs to the technical field of hub bearing structures and comprises a hub flange plate, a flange outer ring is arranged on the hub flange plate, and a wide inner ring fixedly connected with the hub flange plate in a nested manner is arranged between the front end of the flange outer ring and the hub flange plate. A wide steel belt sleeved with the wide inner ring in a clamped and embedded mode is arranged between the wide inner ring and the hub flange plate, a narrow inner ring fixedly connected with the hub flange plate in a nested and embedded mode is arranged between the rear end of the flange outer ring and the hub flange plate, and a narrow steel belt sleeved with the narrow inner ring in a clamped and embedded mode is arranged between the narrow inner ring and the hub flange plate. Retainers are arranged between the wide inner ring and the flange outer ring as well as between the narrow inner ring and the flange outer ring; and a plurality of balls which are annularly distributed and clamped and embedded with the retainers are arranged in the retainers. The sealing structure has the characteristics of good sealing performance, high structural stability and long service life. The problem that abnormal sound is caused due to the fact that ball abrasion gaps become large is solved. Operation stability is improved, and gaps of ball abrasion are eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel hub bearing structures, in particular to a wheel hub unit assembly with a steel belt locking structure. Background Art

[0002] The wheel hub bearing unit is developed on the basis of standard angular contact ball bearings and tapered roller bearings. It integrates two sets of bearings into one and has the advantages of good assembly performance, no clearance adjustment, light weight, compact structure, large load capacity, grease can be pre-loaded for sealed bearings, no external wheel hub seals and no maintenance. It has been widely used in cars and there is a trend of gradually expanding its application in trucks.

[0003] At present, the sensor's automobile hub unit assembly is basically fixed by a cage and adopts a single-row or double-row groove structure. Automobile bearing units are generally composed of an inner ring, an outer ring, a flange, a ball and a cage. When the ball wears, the gap will increase and cause abnormal noise. Summary of the invention

[0004] The utility model mainly solves the deficiencies in the prior art and provides a hub unit assembly with a steel belt locking structure, which has the characteristics of good sealing performance, high structural stability and long service life. It solves the problem of abnormal noise caused by the increase of ball wear clearance. It improves the running stability and eliminates the ball wear clearance.

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

[0006] A hub unit assembly with a steel belt locking structure comprises a hub flange, a flange outer ring movably sleeved with the hub flange is provided on the hub flange, a wide inner ring nested and connected to the hub flange is provided between the front end of the flange outer ring and the hub flange, a wide steel belt embedded and sleeved with the wide inner ring is provided between the wide inner ring and the hub flange, a narrow inner ring nested and connected to the hub flange is provided between the rear end of the flange outer ring and the hub flange, a narrow steel belt embedded and sleeved with the narrow inner ring is provided between the narrow inner ring and the hub flange, a retainer is provided between the wide inner ring and the flange outer ring and between the narrow inner ring and the flange outer ring, and a plurality of balls distributed in an annular shape and embedded with the retainer are provided in the retainer. When the balls are worn, the narrow steel belt or the wide inner ring supplements the clearance of the worn balls through its own stretch margin.

[0007] Preferably, a gear ring is provided between the two retaining frames and is nested and connected to the wide inner ring. A sensor is provided at the lower end of the flange outer ring and is threadedly sleeved with the flange outer ring and is connected to the gear ring.

[0008] Preferably, the hub flange is provided with a plurality of through holes, and the through holes are provided with bolts plugged into the through holes. The bolts are inserted into the through holes before the hub flange is assembled with the flange outer ring.

[0009] Preferably, the hub flange is provided with a mounting shaft hole connected to the front and rear end surfaces of the hub flange, and the mounting shaft hole is used for inserting and inserting the transmission shaft.

[0010] Preferably, the mounting shaft hole is provided with a plurality of equally spaced annular limiting spline grooves integrated with the hub flange. The limiting spline grooves limit the hub flange and the transmission shaft, prevent axial sliding, and realize synchronous rotation of the hub flange and the transmission shaft.

[0011] Preferably, the outer ring of the flange is provided with a plurality of threaded holes distributed in an annular shape.

[0012] Preferably, a multi-lip skeleton sealing ring is provided between the flange outer ring and the front end of the wide inner ring, and between the flange outer ring and the rear end of the narrow inner ring.

[0013] The utility model can achieve the following effects:

[0014] The utility model provides a hub unit assembly with a steel belt locking structure, which has the characteristics of good sealing performance, high structural stability and long service life compared with the prior art. It solves the problem of abnormal noise caused by the increase of ball wear clearance, improves running stability and eliminates the ball wear clearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 It is a structural sectional view of the utility model.

[0017] In the figure: wheel hub flange 1, flange outer ring 2, mounting shaft hole 3, through hole 4, threaded hole 5, multi-lip skeleton seal ring 6, bolt 7, ball 8, wide inner ring 9, wide steel belt 10, retaining frame 11, gear ring 12, sensor 13, narrow inner ring 14, narrow steel belt 15, limit spline groove 16. DETAILED DESCRIPTION

[0018] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0019] Example: Figure 1 and Figure 2As shown, a hub unit assembly with a steel belt locking structure includes a hub flange 1, on which four through holes 4 are arranged in annular distribution with equal spacing, and bolts 7 are arranged in the through holes 4 to be plugged into the through holes 4. The hub flange 1 is provided with a mounting shaft hole 3 connected to the front and rear end surfaces of the hub flange 1, and the mounting shaft hole 3 is provided with 24 limiting spline grooves 16 which are arranged in annular distribution with equal spacing and are integrated with the hub flange 1. The hub flange 1 is provided with a flange outer ring 2 which is movably sleeved with the hub flange 1, and the flange outer ring 2 is provided with three threaded holes 5 which are arranged in annular distribution. A wide inner ring 9 is provided between the front end of the flange outer ring 2 and the hub flange 1, and is connected and fixedly nested with the hub flange 1. A wide steel belt 10 is provided between the wide inner ring (9) and the hub flange 1, and is connected and fixedly embedded with the wide inner ring 9. A narrow inner ring 14 is provided between the rear end of the flange outer ring 2 and the hub flange 1, and is connected and fixedly nested with the hub flange 1. A narrow steel belt 15 is provided between the narrow inner ring 14 and the hub flange 1, and is connected and fixedly embedded with the narrow inner ring 14. A multi-lip skeleton seal ring 6 is provided between the flange outer ring 2 and the front end of the wide inner ring 9, and between the flange outer ring 2 and the rear end of the narrow inner ring 14. A retainer 11 is provided between the wide inner ring 9 and the flange outer ring 2, and between the narrow inner ring 14 and the flange outer ring 2. The retainer 11 is provided with 16 balls 8 distributed in an annular shape and embedded with the retainer 11. A gear ring 12 is provided between the two retaining frames 11 and is connected and fixed with the wide inner ring 9 . A sensor 13 is provided at the lower end of the flange outer ring 2 and is threadedly sleeved with the flange outer ring 2 and is connected with the gear ring 12 .

[0020] In summary, the hub unit assembly with a steel belt locking structure has the characteristics of good sealing performance, high structural stability and long service life. It solves the problem of abnormal noise caused by the increase of ball wear clearance. It improves operating stability and eliminates the clearance caused by ball wear.

[0021] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numerals in the claims should not be regarded as limiting the claims involved.

[0022] In summary, the above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims

1. A hub unit assembly with a steel belt locking structure, characterized in that: The invention comprises a hub flange (1), wherein the hub flange (1) is provided with a flange outer ring (2) movably sleeved with the hub flange (1), a wide inner ring (9) nested and fixedly connected with the hub flange (1) is provided between the front end of the flange outer ring (2) and the hub flange (1), a wide steel belt (10) is provided between the wide inner ring (9) and the hub flange (1) and is sleeved with the wide inner ring (9), and a rear end of the flange outer ring (2) is connected to the hub flange ( A narrow inner ring (14) is provided between the wide inner ring (9) and the flange outer ring (2), and a narrow steel belt (15) is provided between the wide inner ring (9) and the flange outer ring (2), and a retaining frame (11) is provided between the narrow inner ring (14) and the flange outer ring (2). A plurality of balls (8) are provided in the retaining frame (11) and are arranged in an annular shape and are embedded in the retaining frame (11).

2. The hub unit assembly with a steel belt locking structure according to claim 1, characterized in that: A gear ring (12) is provided between the two retaining frames (11) and is connected and fixedly nested with the wide inner ring (9). A sensor (13) is provided at the lower end of the flange outer ring (2) and is threadably sleeved with the flange outer ring (2) and is connected to the gear ring (12).

3. The hub unit assembly with a steel belt locking structure according to claim 1, characterized in that: The hub flange (1) is provided with a plurality of through holes (4), and the through holes (4) are provided with bolts (7) inserted into the through holes (4).

4. The hub unit assembly with a steel belt locking structure according to claim 1, characterized in that: The wheel hub flange (1) is provided with a mounting shaft hole (3) which is in communication with the front and rear end surfaces of the wheel hub flange (1).

5. The hub unit assembly with a steel belt locking structure according to claim 4, characterized in that: A plurality of limiting spline grooves (16) are arranged in an annular manner at equal intervals and are integrated with the hub flange (1) in the mounting shaft hole (3).

6. The hub unit assembly with a steel belt locking structure according to claim 1, characterized in that: The flange outer ring (2) is provided with a plurality of threaded holes (5) distributed in an annular shape.

7. The hub unit assembly with a steel belt locking structure according to claim 1, characterized in that: A multi-lip skeleton sealing ring (6) is provided between the flange outer ring (2) and the front end of the wide inner ring (9), and between the flange outer ring (2) and the rear end of the narrow inner ring (14).

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