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Automobile wheel balance weight and process for manufacturing same

A manufacturing method and technology of balance weight, applied in the direction of balance weight, etc., can solve the problems of human body and environmental hazards, high raw material cost of wheel balance weight, dissolved lead, etc.

Active Publication Date: 2010-05-12
SHANGHAI UNIV OF ENG SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the raw material cost of automobile wheel balance weights made of alloys such as zinc or lead is relatively high, especially after the automobile is scrapped, the balance weights on the wheels have become waste
After the discarded balance weight is exposed to the sun and rain, it will dissolve lead exceeding the standard, which is harmful to the human body and the environment.

Method used

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  • Automobile wheel balance weight and process for manufacturing same
  • Automobile wheel balance weight and process for manufacturing same
  • Automobile wheel balance weight and process for manufacturing same

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0025] Example 1 Manufacturing process

[0026] Cut the material first, then bend according to the radius of curvature of the balance weight part, and then clean the surface of the blank to remove impurities, burrs and oil stains on the surface of the blank. Carry out the common lubricant treatment for coating, that is, preheat the billet after surface cleaning to 200 degrees, take it out and immerse it in the water-based graphite lubricant solution, stir it well, hang it up, drain the residual liquid, and spread it on a dry wooden board Let dry. When forming, the billet coated with lubricant is put into the cavity of the extrusion die for cold extrusion and upsetting to form the outline and rivet of the balance weight and counterweight. Finally, the formed balance weight and the spring pendant are riveted and fixed.

example 2

[0027] Example 2 Comparison of Technical Effects

[0028] (1) Compared with the automobile wheel balance weight formed by die-casting of non-ferrous metals such as zinc or lead, it has the advantages of low raw material cost and no harm to human body and environment.

[0029] (2) Compared with the existing steel automobile wheel balance weight formed by stamping process, the forming die can be reduced by two to three sets, which has the advantages of less forming process and no process waste.

[0030] (3) Compared with the existing steel automobile wheel balance weight formed by stamping process, the rivets on the balance weight block are extruded simultaneously when upsetting. And the rivets on the counterweight block of the balance block formed by the stamping process are specially punched half holes (blind holes) to make the rivets extrude after stamping. Since the depth of the half hole is greater than the diameter of the rivet, the life of the half hole punch is very lim...

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PUM

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Abstract

The invention discloses a wheel weight distribution and relative fittings, especially providing a balance block of wheel. Wherein, it comprises a balance block, and a spring fitting connected on it; the balance block has at least one projection; the spring fitting via said projection is connected to the balance block. Its production comprises: (1) feeding material; (2) bending; (3) cleaning and heating the bended element; (4) coating lubricant; (5) compression molding; (6) fixing the spring fitting. The invention is characterized in that: the steel balance block is compressed to form two rivets, which are not processed by punching, and the profile of balance block is directly compressed molded, to save 5-10% material than the punching method.

Description

[technical field] [0001] The invention relates to the field of a wheel counterweight and its accessories, in particular to an automobile wheel counterweight and a manufacturing method thereof. [Background technique] [0002] In the manufacturing process of automobile wheels, due to factors such as processing technology and materials, it is impossible to ensure absolute concentricity between the shaft and the hub, and there is a certain eccentricity. When the car maintains a speed of 70-80 kilometers per hour, it will cause severe bumps in the car, which will affect the performance and safety of the car. Therefore, the wheels must be checked for dynamic balance before installation. According to the results of the check for dynamic balance, one to several balance weights of different weights must be installed on each wheel. [0003] At present, the balance weights of automobile wheels are basically formed by die-casting non-ferrous metals, such as zinc or lead alloys. Before...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F15/28
Inventor 徐新成钱嘉明张阿虎
Owner SHANGHAI UNIV OF ENG SCI