Bushing, knuckle and press-fitting technique for bushing and knuckle

A technology for steering knuckles and bushings, which is applied to steering mechanisms, steering rods, transportation and packaging, etc. It can solve problems such as difficult control of coaxiality, pressure loss of bushings, and difficulty in pressing and fitting, so as to simplify the operation process and improve Alignment and stability, simple and reasonable structure design

Active Publication Date: 2017-11-07
威海伯特利汽车安全体系统有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a steering knuckle body with a better matching degree for bushes with rubber dust-proof side lugs. During the assembly process, there are a series of technical obstacles such as difficult control of coaxiality, difficulty in press-fitting, and the resulting pressure loss of the bushing. The main structure of the steering knuckle has a scientific and reasonable structural design, easy to press-fit, safe, stable and reliable. , combined with good features, and at the same time, the present invention provides a bush pressing process based on the steering knuckle structure and bushing. The press-fitting tool used in this process has a self-correcting function, which can press the bushing smoothly and stably. fit without causing damage to the rubber dust lugs

Method used

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  • Bushing, knuckle and press-fitting technique for bushing and knuckle
  • Bushing, knuckle and press-fitting technique for bushing and knuckle
  • Bushing, knuckle and press-fitting technique for bushing and knuckle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] The bushing 40 includes a bushing main body with an intermediate shaft hole 46, and the bushing main body is composed of a bushing inner tube 41, a bushing outer tube 42 and an intermediate tube between the bushing inner tube 41 and the bushing outer tube 42. Composed of rubber body 43, one axial side of the bushing main body is provided with rubber dust-proof side ears 44 radially extending along the outer wall of the bushing inner tube 41; the other axial side of the bushing main body is provided with a bushing The sleeve flange 45; the bushing inner tube 41 and the bushing outer tube 42 are hard tubes made of metal materials; the diameter of the rubber dust-proof side ear 44 is larger than the diameter of the bushing outer tube 42 The wall thickness of the bushing outer tube 42 is smaller than the wall thickness of the bushing inner tube 41, and the inner end face of the bushing flange 45 of the bushing 40 and the inner end face of the rubber dust-proof side lug 44 ar...

Embodiment 2

[0052] The steering knuckle 30 for installing the bushing 40 described in Embodiment 1 includes a steering knuckle body, and the steering knuckle body is provided with a steering knuckle bushing hole 31 for installing the bushing 40, according to the pressing order of the bushings , the press-in orifice 31-1 and the press-out orifice 31-2 of the steering knuckle bushing hole 31 are both designed as a rounded structure. The hole height of the steering knuckle bushing hole 31 is 48±0.2mm, and the height distance from the inner end surface of the bushing flange 45 of the bushing 40 to the inner end surface of the rubber dust-proof side lug 44 is 47.5mm; the press-in hole The fillet radius R of the mouth 31-1 and the pressure outlet orifice is 2.2-2.5 mm.

Embodiment 3

[0054] The bush press-fitting process for the bush 40 described in Embodiment 1 and the steering knuckle 30 described in Embodiment 2 includes the following specific steps:

[0055] Step 1: Install the Bushing

[0056] Install the bushing 40 on the pressure head A21-1 of the press-fitting equipment, and evenly apply castor oil on the surface of the rubber dust-proof ear 44;

[0057] Step 2: Fix the steering knuckle

[0058] Fix the steering knuckle 30 on the press-fitting tool, and position the steering knuckle bushing hole 31 of the steering knuckle 30 on the main control mechanism A of the press-fitting tool;

[0059] Step 3: Pressing

[0060] Start the press-fitting equipment, the press head A2 drives the bush 40 to drop slowly, and when it reaches the knuckle bush hole 31, the rubber dust-proof side ear 44 is slowly folded at the press-in hole 31-1 of the knuckle bush hole 31, Then press the bushing 40 into the steering knuckle bushing hole 31, and continue to press dow...

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Abstract

The invention relates to a bushing, a knuckle and a press-fitting technique for the bushing and the knuckle. The bushing is characterized by being composed of a bushing inner tube, a bushing outer tube and an intermediate rubber body, a rubber dustproof side lug is arranged on one side in the axial direction of the bushing, and a bushing flange is arranged on the other side in the axial direction of the bushing. A knuckle bushing hole used for mounting the bushing is formed in the knuckle. A press-in hole opening and a press-out hole opening of the knuckle bushing hole are both designed as a fillet structure with the radius R being 2.2-2.5 mm. The knuckle bushing press-fitting technique comprises three parts of mounting of the bushing, fixing of the knuckle and press-fitting. The knuckle bushing hole is designed according to the specific structure and material of the bushing, and the whole press-fitting process is further completed through a press-fitting tool. By optimizing the knuckle bushing hole structure, the problem that the rubber dustproof side lug is damaged during press-fitting is avoided. Positioning and stable bonding between the bushing and the bushing hole are guaranteed through the press-fitting tool, the operation process is simplified, time and labor are saved, the working efficiency is improved greatly, and the qualification rate of products is greatly increased.

Description

technical field [0001] The invention relates to a bushing, a steering knuckle structure with a bushing hole and a press-fitting process therebetween, and belongs to the technical field of steering knuckle structures and bushing press-fitting techniques. Background technique [0002] The steering knuckle is one of the main parts on the steering axle of the car, which can make the car run stably and transmit the driving direction sensitively. The function of the steering knuckle is to bear the front load of the car, support and drive the front wheel to rotate around the kingpin to make the car turn. When the car is running, it bears variable impact loads, so it is required to have high strength. [0003] Automotive rubber bushings are very important safety parts on cars. Their performance and structure directly determine the comfort and safety performance of the car. Pressing the rubber bushings into the steering knuckle bushing hole is the most important part of the steerin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D7/18F16F1/38
CPCF16F1/38B62D7/18
Inventor 王钤兰晓彤包成龙韩胡伟
Owner 威海伯特利汽车安全体系统有限公司
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