CN219587939U - Automobile hub bolt structure - Google Patents

Abstract

The utility model discloses an automobile wheel hub bolt structure, which comprises a wheel hub, a wheel rim, and a self-aligning component. The wheel rim is evenly distributed with a plurality of conical holes along its circumference, and the wheel hub abuts the wheel rim, and the positions corresponding to the conical holes of the wheel hub are all provided with threaded holes. , the self-aligning assembly is installed in the conical hole, the self-aligning assembly includes a bolt, and the self-aligning taper sleeve, the self-aligning taper sleeve is set at the lower end of the bolt head and fits with the bolt shank in clearance, the self-aligning assembly The tapered sleeve and the tapered hole adopt taper fit, and the bolt is connected with the threaded hole. The mounting structure can effectively prevent bolts from loosening due to eccentricity when the taper surfaces are mated due to positional errors.

Description

Automobile hub bolt structure

technical field

The utility model relates to an automobile hub bolt structure.

Background technique

The installation structure of the automobile hub is usually composed of hub bolts, rims, and hubs. The hub bolts have an outer cone surface, and the rim is evenly divided along the center to arrange a number of inner cone holes that match the hub bolts. The hub is uniform along the center. Multiple threaded holes are arranged separately. Due to the limitation of manufacturing precision, the position degree can only be as low as possible. Due to the existence of position degree error, the fit of the taper surface will be eccentric, resulting in loose fit and loose bolts.

Utility model content

Aiming at the deficiencies in the prior art, the purpose of the utility model is to provide an automobile hub bolt structure, which can solve the phenomenon of eccentricity and thread loosening in the fit of the taper surface.

In order to achieve the above purpose, the utility model provides the following technical solutions: a bolt structure for automobile hubs, including hubs, rims, and self-aligning components. The rims are evenly distributed with a number of conical holes along its circumference, and the hubs are in contact with the rims and the hubs correspond to The positions of the tapered holes are all provided with threaded holes, and the self-aligning assembly is installed in the tapered hole. The self-aligning assembly includes bolts and self-aligning taper sleeves. The rod part is clearance fit, the self-aligning taper sleeve and the conical hole adopt taper fit, and the bolt is connected with the threaded hole.

As a further improvement of the utility model, the thread on the bolt is formed by extrusion, and the major diameter of the thread is not smaller than the inner diameter of the self-aligning tapered sleeve.

As a further improvement of the utility model, the length of the shaft section used for installing the self-aligning taper sleeve on the bolt is not less than the axial length of the self-aligning taper sleeve.

As a further improvement of the utility model, a positioning column is provided on the end surface of the hub abutting against the rim, and a positioning hole matched with the positioning column is provided on the surface of the rim opposite to the positioning column, and the positioning column is installed in the positioning hole.

The beneficial effect of the utility model is that it can effectively prevent bolts from loosening due to the eccentricity of the taper surfaces when mated due to positional errors.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the utility model;

Fig. 2 is a schematic cross-sectional view of the self-aligning assembly of the present invention.

Reference numerals: 1. hub; 2. rim; 3. bolt; 4. self-aligning taper sleeve; 5. positioning column; 6. positioning hole.

Detailed ways

The utility model will be described in further detail below in conjunction with the embodiments provided by the accompanying drawings.

Referring to Figure 1-2, an automobile hub bolt structure includes a hub 1, a rim 2, and an aligning assembly. The rim 2 is evenly distributed with several conical holes along its circumference. The hub 1 abuts on the rim 2 and the hub 1 corresponds to The positions of the tapered holes are all provided with threaded holes, and the self-aligning assembly is installed in the tapered hole. The self-aligning assembly includes a bolt 3 and an self-aligning taper sleeve 4, and the self-aligning taper sleeve 4 is set on the head of the bolt 3 The lower end of the centering taper sleeve 4 and the taper hole are matched with the taper, so that the bolt 3 is only responsible for locking and not for positioning. There is a gap to move and automatically adjust the center, ensuring the cooperation of the cone surface. The bolt 3 is connected to the threaded hole. The thread on the bolt 3 is extruded, and the major diameter of the thread is not less than the inner diameter of the self-aligning taper sleeve 4 In this way, it is set to prevent the self-aligning tapered sleeve 4 from coming out of the bolt 3 during installation, and the length of the shaft section used to install the self-aligning tapered sleeve 4 on the bolt 3 is not less than the axial length of the self-aligning tapered sleeve 4, so that it is set to prevent the self-aligning The conical sleeve 4 is stuck in the axial direction, the hub 1 is provided with a positioning column 5 on the end surface abutting against the rim 2, and the surface of the rim 2 opposite to the positioning column 5 is provided with a positioning hole 6 matching it. The positioning column 5 is installed in the positioning hole 6 .

The above descriptions are only preferred implementations of the present utility model, and the protection scope of the present utility model is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present utility model all belong to the protection scope of the present utility model. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims (2)

1. A kind of automobile hub bolt structure, it is characterized in that, comprises wheel hub, wheel rim, self-aligning assembly, described wheel rim is evenly distributed some conical holes along its circumference, described wheel hub abuts wheel rim and the position corresponding to wheel hub conical hole is all provided with screw thread hole, the self-aligning assembly is installed in the conical hole, the self-aligning assembly includes bolts, self-aligning tapered sleeves, the self-aligning tapered sleeve is set at the lower end of the bolt head and fits with the bolt shank in clearance, the self-aligning The taper sleeve and the taper hole adopt taper fit, the bolt is connected with the threaded hole, the thread on the bolt is extruded, and the major diameter of the thread is not smaller than the inner diameter of the self-aligning taper sleeve, the bolt is used for installation The length of the shaft section of the self-aligning taper sleeve is not less than the axial length of the self-aligning taper sleeve. 2. The automobile wheel hub bolt structure according to claim 1, characterized in that, a positioning post is provided on the end surface of the wheel hub abutting against the rim, and a positioning hole matched therewith is provided on the surface of the rim opposite to the positioning post, so that The positioning post is installed in the positioning hole.