CN218063067U

CN218063067U - Automobile steering outer joint

Info

Publication number: CN218063067U
Application number: CN202221766840.5U
Authority: CN
Inventors: 来煜明; 蔡明洋; 孟琪
Original assignee: Shaoxing Jinjiang Machinery Co ltd
Current assignee: Shaoxing Jinjiang Machinery Co ltd
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2022-12-16
Anticipated expiration: 2032-07-08

Abstract

The utility model relates to the technical field of automobile parts, in particular to an automobile steering outer joint, which comprises a ball pin, a dust cover and a flange cover, wherein the dust cover and the flange cover are arranged on the ball pin; has the advantages that: the assembly position of the outer wall of the ball pin and the flange cover is provided with the conical section, so that the assembly precision requirement can be reduced, and the manufacturing cost is reduced.

Description

Automobile steering outer joint

Technical Field

The utility model relates to an automobile parts technical field especially relates to an automobile steering external joint.

Background

The automobile steering outer joint generally comprises an outer joint and a ball pin, wherein one end of the outer joint is provided with an assembly hole, a ball seat is assembled in the assembly hole, one end of the ball pin is a ball head, during installation, the ball head of the ball pin is pressed into the ball seat, a dust cover and a flange cover are installed from bottom to top, the dust cover is used for blocking dust and muddy water, and the flange cover plays roles in stabilizing the dust cover and improving the sealing performance of the dust cover.

However, the existing structure has the following defects: 1. the flange cover is fixed on the ball pin in a riveting mode, and the inner wall of the hole of the flange cover and the outer wall of the rod of the ball pin are straight walls, so that the assembly precision requirement of the flange cover and the ball pin is high, the manufacturing cost of the automobile steering outer joint is high, and meanwhile, the torsion resistance between the flange cover and the ball pin is not high; 2. the snap ring is installed to the lower part of dust cover for the anticreep, but dust cover upper portion except that the upper flange lid, there is not any limit structure in the below on upper portion, has the risk of downward deformation, and the steadiness remains to be improved.

Based on this, the present case arises from this.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automobile steering outer joint to reduce the assembly required precision between blind flange and the ball round pin, promote the joint strength between blind flange, dust cover and the ball round pin.

In order to achieve the above purpose, the technical solution of the present invention is as follows:

the utility model provides an automobile steering outer joint, includes the ball round pin and installs dust cover, the blind flange on the ball round pin, the outer wall of ball round pin installation blind flange department includes big end down's first toper section, the hole lateral wall of blind flange includes the second toper section of mutually supporting with first toper section.

Furthermore, the included angle between the outer wall of the first conical section and the vertical surface is 25-35 degrees.

Further, the included angle between the outer wall of the first conical section and the vertical surface is 30 degrees.

Further, the outer wall of ball pin mounting flange lid department includes the straight wall section that is located first toper section top, the hole lateral wall of flange lid includes the second straight wall section that cooperatees with first straight wall section.

Furthermore, straight grains are uniformly distributed on the periphery of the first straight wall section.

Furthermore, the distance between two adjacent straight grains is 0.2-0.4 mm.

Furthermore, the distance between two adjacent straight grains is 0.3mm.

Furthermore, the outer wall of the ball pin is provided with a limiting convex ring, and the upper end of the dust cover is arranged between the flange cover and the limiting convex ring.

The utility model has the advantages that:

1. the conical section is arranged at the assembly position of the outer wall of the ball pin and the flange cover, so that the assembly precision requirement can be reduced, and the manufacturing cost is reduced;

2. straight grains are arranged at the straight wall section assembled by the outer wall of the ball pin and the flange cover, and the straight grains can reduce the assembly precision requirement on one hand and play a role in improving the torsion resistance on the other hand;

3. set up spacing bulge loop in ball round pin outer wall department to install the upper end of dust cover between blind flange and spacing bulge loop, make the below of dust cover upper end also possess spacingly, reduce the risk that dust cover upper end warp downwards.

Drawings

FIG. 1 is a schematic view showing the construction of an outer steering joint of an automobile according to an embodiment;

FIG. 2 is an enlarged view of portion A of FIG. 1;

description of the reference symbols

1-end cover, 2-ball seat, 3-external joint, 4-snap ring, 5-dust cover, 6-flange cover, 7-ball pin, 71-first conical section, 72-first straight wall section, 73-straight thread, 74-limit convex ring.

Detailed Description

The present invention will be described in further detail with reference to examples.

The embodiment provides an automobile steering outer joint, as shown in fig. 1, including outer joint 3 and ball round pin 7, the one end of outer joint 3 has the pilot hole, is equipped with end cover 1 and ball seat 2 in the pilot hole, and the lower extreme of ball round pin 7 is equipped with the bulb, during the installation, need press the bulb into the ball seat 2 of pilot hole, later install dust cover 5 and flange lid 6 in proper order again.

The main improvement of this embodiment is the engagement between the flange cover 6 and the ball pin 7. As shown in FIG. 2, the outer wall of the flange cover 6 mounted on the ball pin 7 comprises a first straight wall section 72 and a first tapered section 71 from top to bottom, and correspondingly, the inner hole of the flange cover 6 also needs to be changed into a second straight wall section and a second tapered section matched with the outer wall of the ball pin 7. In this embodiment, straight veins 73 are uniformly distributed on the first straight wall section 72 in the circumferential direction, and the distance between two adjacent straight veins 73 is M =0.3mm, and the arrangement of the straight veins 73 has the following advantages: firstly, the straight veins 73 have certain deformability, so that the assembly accuracy requirement of the inner hole of the flange cover 6 can be properly reduced; secondly, the straight threads 73 increase the friction between the flange cover 6 and the ball pin 7, in particular to increase the torsion resistance. Big design about the toper section for flange cover 6 pushes down more, and the cohesion between flange cover 6 and the ball round pin 7 is big more, and the conical setting can reduce the assembly accuracy requirement, and as preferred, the first toper section 71 of this embodiment outwards expands 30 formation for vertical outer wall, and the contained angle a of first toper section 71 outer wall and vertical face is 30 promptly.

As shown in figure 1, the lower end of the dust cover 5 is limited by a clamping ring 4, a flange cover 6 is arranged above the upper end of the dust cover for limitation, and in the prior art, no limiting structure is arranged below the upper end of the dust cover. As an improvement, referring to fig. 2, in the present embodiment, a limit protruding ring 74 is provided on the outer wall of the ball pin 7, and the upper end of the dust cover 5 is mounted between the flange cover 6 and the limit protruding ring 74, so that the lower side of the upper end of the dust cover 5 is also provided with a limit, the risk of downward deformation of the upper end of the dust cover 5 is reduced, and the anti-drop function is achieved.

The above-mentioned embodiments are merely illustrative of the inventive concept and are not intended to limit the scope of the invention, which is defined by the claims and the insubstantial modifications of the inventive concept can be made without departing from the scope of the invention.

Claims

1. The utility model provides an automobile steering outer joint, includes the ball round pin and installs dust cover, the blind flange on the ball round pin, its characterized in that: the outer wall of ball round pin installation flange lid department includes big end down's first toper section, the hole lateral wall of flange cover includes the second toper section of cooperateing with first toper section.

2. The automotive steering outer joint as set forth in claim 1, wherein: the included angle between the outer wall of the first conical section and the vertical surface is 25-35 degrees.

3. The automotive steering outer joint as set forth in claim 1, wherein: the included angle between the outer wall of the first conical section and the vertical surface is 30 degrees.

4. The automotive steering outer joint as set forth in claim 1, wherein: the outer wall of ball round pin installation flange lid department includes the straight wall section that is located first toper section top, the hole lateral wall of flange lid includes the second straight wall section of cooperateing with first straight wall section.

5. The automotive steering outer joint according to claim 4, wherein: straight lines are uniformly distributed on the periphery of the first straight wall section.

6. The automotive steering outer joint according to claim 5, wherein: the distance between two adjacent straight stripes is 0.2-0.4 mm.

7. The automotive steering outer joint according to claim 5, wherein: the distance between two adjacent straight stripes is 0.3mm.

8. The automotive steering outer joint as set forth in claim 1, wherein: the outer wall of the ball pin is provided with a limiting convex ring, and the upper end of the dust cover is arranged between the flange cover and the limiting convex ring.