Driving type hub bearing with ball cage device

Abstract

The utility model provides a driving type hub bearing with a ball cage device, which comprises a bearing outer ring, a bearing inner ring, a steel ball, a magnetic pole encoder component and a flange plate, an outer sealing component is arranged between the outer ring and the inner ring, the flange plate is provided with an installation space for installing the inner ring, and the steel ball is arranged in the installation space. The flange plate comprises a large end used for installation and connection and a small end provided with a ball cage structure, the ball cage structure is composed of a plurality of grooves formed in the inner edge of the small end of the flange plate, the grooves are evenly distributed in the inner edge of the flange plate in the circumferential direction to form a matched ball cage, the middle process is omitted, splines are removed in the mode that the flange plate and the matched ball cage are integrated, and the machining efficiency is improved. According to the flange plate with the ball cage structure, the transmission efficiency of automobile power is improved, the integration is improved, the problems of starting abnormal sound and the like caused by poor spline machining consistency are solved, ball cage shafts are omitted, meanwhile, spline machining is reduced, the assembly weight and machining procedures are reduced, and cost is saved.

Description

Technical Field

[0001] The utility model relates to a driving hub bearing with a ball cage device. Background Art

[0002] The existing drive-type wheel hub bearing structure is mainly composed of a flange, an outer ring, a steel ball, a retainer, an inner ring, a magnetic pole encoder assembly, an outer sealing assembly, bolts, a matching ball cage, a locking nut, a ball cage shaft, and a matching spline. The ball cage, also known as a "constant velocity joint", is an important component in the transmission system of a car. Its function is to transmit the power of the engine from the transmission to the drive wheel. The power of the automobile assembly is transmitted to the wheel through the matching ball cage and the matching spline. During the processing of the ball cage shaft, the spline teeth are first processed and then heat treated. The deformation of the spline teeth due to heat treatment is uncontrollable, resulting in poor consistency in the spline size. This will cause poor consistency in the matching between the ball cage shaft and the bearing spline, which will in turn cause problems such as abnormal noise when starting.

[0003] The bearing and the ball cage shaft are heavy and costly. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a driving hub bearing with a ball cage device.

[0005] To achieve the above-mentioned purpose, the utility model provides a driving hub bearing with a ball cage device, including a bearing outer ring, an inner ring, a steel ball, and a magnetic pole encoder assembly. An outer sealing assembly is arranged between the outer ring and the inner ring, and also includes a flange. The flange is provided with an installation space for installing the inner ring. The flange includes a larger end for installation and connection and a smaller end provided with a ball cage structure. The ball cage structure is a plurality of grooves arranged on the inner edge of the smaller end of the flange, and the plurality of grooves are evenly distributed circumferentially on the inner edge to form a matching ball cage.

[0006] Furthermore, the steel balls are arranged in two rows, one row of steel balls is sandwiched between the outer ring of the bearing and the outer peripheral wall of the flange, and the other row of steel balls is sandwiched between the outer ring and the inner ring of the bearing.

[0007] Furthermore, a locking nut is provided on the outer peripheral wall of the flange near the smaller end, and one axial end of the locking nut abuts against the axial end of the inner ring to position and fix the inner ring.

[0008] Furthermore, a mounting annular groove is provided on the outer peripheral wall of the flange corresponding to the inner ring end surface.

[0009] Furthermore, an annular positioning ring groove is provided on the inner edge of one axial end of the locking nut, and a positioning hole extending in a radial direction is provided on the outer peripheral wall of the flange near the inner ring position, and the positioning hole is provided with a compression spring and a positioning ball arranged at the end of the compression spring, and when the annular positioning ring groove is aligned with the positioning hole, the positioning ball is inserted into the positioning ring groove.

[0010] The beneficial effects of the utility model are as follows: the utility model structure is provided with a flange with a ball cage structure through the outer ring, inner ring, steel ball, magnetic pole encoder assembly, and the flange, and the power of the automobile assembly is directly transmitted to the wheel through the flange with the ball cage structure, thereby saving the intermediate process, and removing the spline by integrating the flange with the matching ball cage, thereby improving the transmission efficiency of the automobile power. The flange with the ball cage structure improves the integrity and avoids the problems such as abnormal noise at start-up caused by poor consistency of spline processing, thereby saving the ball cage shaft, reducing the processing of the spline, reducing the assembly weight and processing procedures, and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the cross-sectional structure in an embodiment of the utility model;

[0012] Figure 2 It is an enlarged schematic cross-section diagram in an embodiment of the utility model. DETAILED DESCRIPTION

[0013] The following is a further description of the embodiments of the utility model in conjunction with the accompanying drawings: as shown in the figure, a driven hub bearing with a ball cage device includes a bearing outer ring 1, an inner ring 2, a steel ball, and a magnetic pole encoder assembly. An outer sealing assembly is arranged between the outer ring and the inner ring 2, and also includes a flange 3. The flange 3 is provided with an installation space 4 for installing the inner ring 2. The flange 3 includes a larger end for installation and connection and a smaller end provided with a ball cage structure 5. The ball cage structure 5 is a plurality of grooves 6 arranged on the inner edge of the smaller end of the flange 3, and the plurality of grooves 6 are evenly distributed circumferentially on the inner edge to form a matching ball cage. The problem in the prior art that, when processing the ball cage shaft, the spline teeth are first processed and then heat treated, and the deformation of the spline teeth due to the heat treatment is uncontrollable during the processing, resulting in poor consistency of the spline size, causing poor consistency in the matching between the ball cage shaft and the bearing spline, which in turn causes problems such as abnormal noise when starting. By integrating the ball cage and the flange, the installation of the single part of the ball cage shaft is saved, and the problem of heavy weight and high cost of the bearing and the ball cage shaft is solved. At the same time, the processing of the spline is reduced, the assembly weight and processing procedures are reduced, and the cost is saved.

[0014] The steel balls are arranged in two rows, one row of the steel balls is sandwiched between the outer ring 1 of the bearing and the outer peripheral wall of the flange 3 , and the other row of the steel balls is sandwiched between the outer ring 1 and the inner ring 2 of the bearing.

[0015] The outer peripheral wall of the flange 3 is provided with a locking nut 7 near the smaller end, and one axial end of the locking nut 7 abuts against the axial end of the inner ring 2 to position and fix the inner ring 2. The inner ring can be positioned and fixed by the locking nut, that is, the locking nut is installed when the end face of the locking nut abuts against the end face of the inner ring and it is difficult to continue to rotate during the rotation process, and the movement of the inner ring can be prevented.

[0016] The outer peripheral wall of the flange 3 is provided with a mounting annular groove 8 corresponding to the end surface of the inner ring 2 .

[0017] The inner edge of one axial end of the locking nut 7 is provided with an annular positioning ring groove 9, and the outer peripheral wall of the flange 3 is provided with a positioning hole 10 extending in the radial direction near the inner ring 2. The positioning hole 10 is provided with a compression spring 11 and a positioning ball 12 provided at the end of the compression spring 11. When the annular positioning ring groove 9 is aligned with the positioning hole 10, the positioning ball 12 is inserted into the positioning ring groove 9. During the tightening process of the locking nut, when the locking nut does not abut against the positioning ball, the positioning ball is slightly higher than the positioning hole. When the locking nut abuts against the positioning ball, the positioning ball is pressed into the positioning hole. When the locking nut is tightened and abuts against the inner ring, the positioning hole and the positioning ring groove are located on the same straight line, the compression spring releases energy, and the positioning ball is pushed into the positioning ring groove to produce a sound. At this time, the positioning is completed and the locking nut is installed.

[0018] The above embodiment is only one of the preferred specific embodiments of the present invention. Common changes and substitutions made by those skilled in the art within the technical solution of the present invention are all included in the protection scope of the present invention.

Claims

1. A drive-type wheel hub bearing with a ball cage device, comprising a bearing outer ring, an inner ring, a steel ball, and a magnetic pole encoder assembly, wherein an outer sealing assembly is arranged between the outer ring and the inner ring, and characterized in that: It also includes a flange, which is provided with an installation space for installing the inner ring. The flange includes a larger end for installation and connection and a smaller end provided with a ball cage structure. The ball cage structure is a plurality of grooves arranged on the inner edge of the smaller end of the flange, and the plurality of grooves are evenly distributed circumferentially on the inner edge to form a matching ball cage.

2. The drive-type wheel hub bearing with a ball cage device according to claim 1, characterized in that: The steel balls are arranged in two rows, one row of the steel balls is sandwiched between the outer ring of the bearing and the outer peripheral wall of the flange, and the other row of the steel balls is sandwiched between the outer ring and the inner ring of the bearing.

3. The driving hub bearing with a ball cage device according to claim 2, characterized in that: A locking nut is arranged on the outer peripheral wall of the flange near the smaller end, and one axial end of the locking nut abuts against the axial end of the inner ring to position and fix the inner ring.

4. The driving hub bearing with a ball cage device according to claim 3, characterized in that: The outer peripheral wall of the flange is provided with a mounting annular groove corresponding to the inner ring end surface.

5. The driving hub bearing with a ball cage device according to claim 4, characterized in that: An annular positioning groove is arranged on the inner edge of one axial end of the locking nut, and a positioning hole extending in a radial direction is arranged on the outer peripheral wall of the flange near the inner ring, and the positioning hole is provided with a compression spring and a positioning ball arranged on the end of the compression spring, and when the annular positioning groove is aligned with the positioning hole, the positioning ball is inserted into the positioning groove.

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