Hub assembly convenient to assemble

Abstract

The utility model discloses a hub assembly convenient to assemble, and relates to the technical field of automobiles. Comprising a hub shell, an axle housing shaft tube is inserted into the inner wall of the hub shell, an inner cone bearing is arranged on the inner wall of the hub shell, an adjusting and assembling assembly is arranged on the inner wall of the hub shell and comprises a spacer bush, the surface of the axle housing shaft tube is sleeved with the spacer bush, a plurality of spline grooves are formed in the surface of the axle housing shaft tube, and the inner cone bearing is arranged in the spline grooves. The surface of the axle housing shaft tube is connected with a spline housing in a sliding mode, through the arrangement of the adjusting and assembling assembly, by additionally arranging a spacer bush and an adjusting gasket, indirect conversion of two times of bearing clearance is improved into direct clearance control, by selecting the adjusting gasket, repeated press fitting and dismounting of a bearing inner ring with the large interference magnitude are avoided, and the bearing clearance control efficiency is improved. By means of the transition spline housing, the dismounting process does not depend on special equipment, so that the assembling time is saved, and the assembling efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile, concretely is a hub assembly convenient to assemble. BACKGROUND

[0002] The hub assembly is one of the main parts of the drive axle supporting and driving the wheel, and the current control method of the hub bearing clearance in the industry is that the bearing clearance is associated with the rotating torque of the hub assembly through the early test data, the rotating torque is associated with the torque of the shaft head nut, a fixed value of the nut torque is formed, the torque and the default bearing clearance meet the requirements, after the hub assembly is assembled, whether the rotating torque of the hub assembly is qualified is detected, and according to the detection result, the operator adjusts the angle of the slightly loose or tightened shaft head nut according to experience, so that the rotating torque reaches the qualified range.

[0003] However, the current industry hub assembly bearing clearance guarantee is set according to the average value of the early test, there are two times of relationship transformation between the target parameter and the control parameter, in addition, the nut torque control parameter is a fixed value, which is determined by the process personnel according to the ideal friction coefficient test, but for the non-precision traditional manufacturing industry, it is difficult to guarantee the stability and consistency of the friction coefficient and product quality supply of the shaft head nut produced by different manufacturers and different processing technologies, the qualified clearance interval of the hub assembly bearing is only 40 microns, the above-mentioned method has a low qualified rate, and most of the industry relies on the timely adjustment of the skilled workers in the key positions, thereby affecting the working time and reducing the working efficiency, therefore, an easy-to-assemble hub assembly is needed to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a kind of easy-to-assemble hub assembly to solve the problem of two times of conversion of bearing clearance when traditional hub assembly is assembled in the above background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: an easy-to-assemble hub assembly, comprising a hub shell, a bridge shell shaft pipe is inserted into the inner wall of the hub shell, an inner taper bearing is arranged on the inner wall of the hub shell, an adjustment assembly is arranged on the inner wall of the hub shell.

[0006] The adjustment assembly comprises a spacer sleeve, the spacer sleeve is sleeved on the surface of the bridge shell shaft pipe, a plurality of spline grooves are formed on the surface of the bridge shell shaft pipe, a spline sleeve is slidably connected to the surface of the bridge shell shaft pipe, an adjustment gasket is sleeved on the surface of the bridge shell shaft pipe, and an outer taper bearing is sleeved on the surface of the bridge shell shaft pipe.

[0007] Preferably, an axle head nut is sleeved on the surface of the bridge shell shaft pipe, one end of the axle head nut is matched with the spline sleeve and the outer taper bearing, and the axle head nut is detachably connected to the bridge shell shaft pipe by bolts.

[0008] Preferably, one end of the spacer sleeve is attached to one end of the inner taper bearing, the other end of the spacer sleeve is attached to one end of the adjusting washer, and the one end of the adjusting washer is matched in size with the spline sleeve and the outer taper bearing.

[0009] Preferably, the inner wall of the spline sleeve is matched in size with the surface of the axle tube of the axle housing, and the surface of the spline sleeve is interference-fitted with the inner wall of the outer taper bearing.

[0010] Preferably, the inner wall of the inner taper bearing is matched in size with the surface of the axle tube of the axle housing, and the surface of the inner taper bearing is attached to the inner wall of the hub shell.

[0011] Preferably, the spacer sleeve and the spline sleeve are made of wear-resistant materials, and the adjusting washer is a wire.

[0012] Compared with the prior art, the present application has the following beneficial effects:

[0013] The adjusting assembly is provided, the bearing clearance is directly controlled by increasing the spacer sleeve and the adjusting washer, the adjusting washer is selected to avoid repeatedly pressing and disassembling the bearing inner ring with a large interference amount, the transition spline sleeve is used to realize the disassembly process without relying on special equipment, thereby saving the assembly time and improving the assembly efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application;

[0015] Figure 2 It is a schematic diagram of the local cross-sectional structure of the adjusting assembly of the present application;

[0016] Figure 3 It is Figure 2 It is an enlarged structure schematic diagram of position A.

[0017] In the figure: 1, hub shell; 2, axle tube of axle housing; 3, inner taper bearing; 4, adjusting assembly; 401, spacer sleeve; 402, spline groove; 403, spline sleeve; 404, adjusting washer; 405, outer taper bearing; 406, shaft nut. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0019] Please refer to Figures 1-3 The utility model provides a kind of hub assembly convenient to assemble, including hub shell 1, the inner wall of hub shell 1 is inserted with axle tube 2 of axle housing, the inner wall of hub shell 1 is provided with inner taper bearing 3, the inner wall of hub shell 1 is provided with adjustment assembly 4, adjustment assembly 4 includes spacer 401, spacer 401 is sleeved on the surface of axle tube 2, the surface of axle tube 2 is provided with multiple spline grooves 402, the surface of axle tube 2 is slidably connected with spline sleeve 403, the surface of axle tube 2 is sleeved with adjusting washer 404, the surface of axle tube 2 is sleeved with outer taper bearing 405, by the adjustment assembly 4 of being set, by increasing spacer 401 and adjusting washer 404, the indirect promotion of twice conversion of bearing play is directly gap control, by selecting adjusting washer 404, it avoids repeatedly pressing and disassembling the interference amount of larger bearing inner ring, and the disassembly process is not dependent on special equipment by a transition spline sleeve 403, to save assembly time, improve assembly efficiency.

[0020] Further, the surface of axle tube 2 is sleeved with shaft head nut 406, one end of shaft head nut 406 is matched with spline sleeve 403 and outer taper bearing 405, and shaft head nut 406 is detachably connected with axle tube 2 by bolts, so that spline sleeve 403 and outer taper bearing 405 are conveniently limited by the setting of shaft head nut 406.

[0021] Further, one end of spacer 401 is attached to one end of inner taper bearing 3, the other end of spacer 401 is attached to one end of adjusting washer 404, and one end of adjusting washer 404 is matched with the size of spline sleeve 403 and outer taper bearing 405, so that adjusting washer 404 and spline sleeve 403 are limited at the same time by the size of spline sleeve 403 and outer taper bearing 405 matched with one end of adjusting washer 404.

[0022] Further, the inner wall of spline sleeve 403 is in spline cooperation with the surface of axle tube 2, and the surface of spline sleeve 403 is in interference fit with the inner wall of outer taper bearing 405, so that spline sleeve 403 is conveniently slid on the surface of axle tube 2 while avoiding rotation of axle tube 2 by the mutual cooperation of spline sleeve 403 and the surface of axle tube 2.

[0023] Further, the inner wall of inner taper bearing 3 is matched with the size of the surface of axle tube 2, and the surface of inner taper bearing 3 is abutted with the inner wall of hub shell 1, so that the friction between inner taper bearing 3 and the inner wall of hub shell 1 is conveniently increased by the setting of inner taper bearing 3.

[0024] Further, the spacer sleeve 401 and the spline sleeve 403 are made of wear-resistant material, and the adjusting washer 404 has a size of one silk. The spacer sleeve 401, the spline sleeve 403 and the adjusting washer 404 are made of wear-resistant material, so that the service life of the spacer sleeve 401, the spline sleeve 403 and the adjusting washer 404 is improved. The adjusting washer 404 has a size of one silk, so that the adjusting washer 404 can be stacked according to specific requirements.

[0025] Working principle: before use, prepare a process washer, and the thickness of the process washer is much larger than that of other adjusting washers. In use, the spline sleeve 403 is first pressed and assembled to the inner ring of the outer tapered bearing 405, and then the inner tapered bearing 3, the spacer sleeve 401, the process washer, the hub shell 1 and the outer tapered bearing 405 with the spline sleeve 403 are sequentially assembled with the axle tube 2 of the axle housing, and then the hub shell 1 is moved forward and backward, and the spline sleeve 403 is kept in a stable pressed state during the movement. Due to the large thickness of the process washer, the inner tapered bearing 3 and the outer tapered bearing 405 are in a large positive clearance state, and the hub shell 1 is moved forward and backward to drive the inner tapered bearing 3 and the outer tapered bearing 405 to move, so that the inner and outer rings of the outer tapered bearing 405 are once in a pressed negative clearance state. According to the calculation of the distance value of the hub shell 1 moved forward and backward, the thickness value of the process washer to be removed can be obtained, then the inner ring of the outer tapered bearing 405 with the spline sleeve 403 is taken out along the spline groove 402 on the surface of the axle tube 2, the calculated adjusting washer 404 is replaced, and the inner ring of the outer tapered bearing 405 with the spline sleeve 403 is reinserted along the spline fit, then the spline sleeve 403 is pressed again to be in a certain pressed state, and the shaft head nut 406 is tightened, so that the assembly is completed. At this time, the nut torque does not play a role in adjustment, only a limiting role, so that the assembly time is saved and the assembly efficiency is improved.

[0026] It is apparent for those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, and the present application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the foregoing description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A wheel hub assembly that is easy to assemble, comprising a wheel hub housing (1), characterized in that: The inner wall of the hub housing (1) is provided with an axle housing tube (2), the inner wall of the hub housing (1) is provided with an inner tapered bearing (3), and the inner wall of the hub housing (1) is provided with an adjustment assembly (4). The adjustment assembly (4) includes a spacer (401), which is sleeved on the surface of the axle housing shaft tube (2). The surface of the axle housing shaft tube (2) is provided with a plurality of spline grooves (402). A spline sleeve (403) is slidably connected to the surface of the axle housing shaft tube (2). An adjustment shim (404) is sleeved on the surface of the axle housing shaft tube (2). An external tapered bearing (405) is sleeved on the surface of the axle housing shaft tube (2).

2. The wheel hub assembly for easy assembly according to claim 1, characterized in that: The surface of the axle housing tube (2) is fitted with a shaft head nut (406). One end of the shaft head nut (406) is matched with the spline sleeve (403) and the outer tapered bearing (405). The shaft head nut (406) and the axle housing tube (2) are detachably connected by bolts.

3. The wheel hub assembly for easy assembly according to claim 1, characterized in that: One end of the spacer (401) is in contact with one end of the inner tapered bearing (3), and the other end of the spacer (401) is in contact with one end of the adjusting shim (404). One end of the adjusting shim (404) is matched with the size of the spline sleeve (403) and the outer tapered bearing (405).

4. The wheel hub assembly for easy assembly according to claim 1, characterized in that: The inner wall of the spline sleeve (403) is splined with the surface of the bridge housing shaft tube (2), and the surface of the spline sleeve (403) is interference-fitted with the inner wall of the outer tapered bearing (405).

5. The wheel hub assembly for easy assembly according to claim 1, characterized in that: The inner wall of the inner tapered bearing (3) matches the surface dimensions of the axle housing tube (2), and the surface of the inner tapered bearing (3) abuts against the inner wall of the hub housing (1).

6. The wheel hub assembly for easy assembly according to claim 1, characterized in that: The spacer (401), spline sleeve (403), and adjusting shim (404) are all made of wear-resistant material, and the size of the adjusting shim (404) is one thread.

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