Chain for use in automobile engine

A technology of automobile engine and sleeve, applied in the direction of machine/engine, transmission chain, mechanical equipment, etc., can solve the problems of wear, easy to be affected by oxidation and corrosion, short life, etc., to improve wear resistance and inhibit oil film Effects of improved fracture and roundness

Active Publication Date: 2008-11-12
TSUBAKIMOTO CHAIN CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, the applicants of the present invention, in order to solve the problem of the conventional chains for automobile engines that they are easily affected by oxidation and corrosion when used together with lubricating oil with a high degree of oxidation that is extremely deteriorated in the engine room , It is easy to wear due to the adhesion (Adhension) of the pin and the sleeve, and the life is short. A timing chain for an automobile engine has been developed. The material of the sleeve is carburized stainless steel, and on the surface of the pin Formed a vanadium carbide (Vanadium carbide) layer and received a high evaluation in the market (see Patent Document 2)

Method used

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  • Chain for use in automobile engine
  • Chain for use in automobile engine
  • Chain for use in automobile engine

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Embodiment Construction

[0025] refer to Figure 1 to Figure 3 , the embodiments of the present invention will be described based on examples. In addition, as can be seen from the above description, since the present invention aims at improving the characteristic deterioration caused by the sliding contact between the inner surface of the bush and the outer surface of the pin, the effect is exhibited regardless of whether it is a roller chain or a bush chain. essentially the same trend. Therefore, in the description of the following embodiment, it demonstrates based on a roller chain.

[0026] figure 1 It is a perspective view showing a part of a roller chain as an embodiment of the present invention. in the figure 1 In , it is shown with a part cut away to understand the internal structure of the roller chain.

[0027] In the roller chain 10, both ends of the sleeve 12 are respectively pressed into the sleeve holes 11a of the pair of inner plates 11, and both ends of the pin 15 loosely embedded ...

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Abstract

The invention provides a chain for automobile engine for enhancing the wearing extension function under the condition of the lubricating oil mixing the carbon black and inhibiting the abnormal abrasion caused by the break of the oil film. A chain for automobile engine is provided. Two ends of a cylindrical sleeve are respectively pressed in a sleeve hole in the inner board; the two ends of the pin embedded in the sleeve are pressed in the pin hole provided with a pair of outer board at the two outer sides of the inner board; the surface of the pin is covered by chrome carbide layer or vanadium carbide layer; the sleeve is formed by cold forging; the roughness of the surface of the pin is less than roughness of the surface of the sleeve; thereby the problem is solved.

Description

technical field [0001] The present invention relates to a chain for power transmission and a chain for driving a camshaft for an automobile engine, and particularly preferably to a timing chain for an automobile engine. Background technique [0002] In recent years, for power transmission media such as camshaft drive mechanisms used in automobile engines, due to the requirements of high load, high speed, improved layout freedom, and maintenance-free requirements, toothed belts that have been widely used in the past have been replaced. or V-belts to increase the use of durable metal bush chains. [0003] In general, metal bushing chains for automobile engines are made of steel that press-fit both ends of a cylindrical bushing into the bushing holes of a pair of inner plates, and loosely fit in the bushings. Both ends of the pin are pressed into the pin holes of a pair of outer plates arranged on the outer sides of a pair of inner plates. The metal roller chain is made by ins...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16G13/06
CPCF16G13/06F02B67/06
Inventor 宫泽敏彦
Owner TSUBAKIMOTO CHAIN CO
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