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Vanadinizing timing chain for engine

An engine and chain technology, applied in the field of auto parts manufacturing, can solve the problems of heat resistance and oxidation resistance, poor corrosion resistance, short service life, etc., and achieve the effect of improving static strength, corrosion resistance and fatigue strength

Inactive Publication Date: 2015-04-29
HANGZHOU CHIZHENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its shortcomings: poor heat resistance, wear resistance, oxidation resistance and corrosion resistance
Its disadvantages: short service life

Method used

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  • Vanadinizing timing chain for engine
  • Vanadinizing timing chain for engine
  • Vanadinizing timing chain for engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1: with reference to attached Figure 1-4 . A vanadium-infiltrated timing chain for an engine comprises an engine timing chain, the chain pin 2 in the engine timing chain is a GCr15 pin and the surface layer of the GCr15 pin is a metallized layer 5; in the engine timing chain The shape of the chain plate 1 is tooth-shaped and the tooth-shaped meshing arc surface is a concave-convex tooth meshing surface 4 . The metal infiltrated layer 5 is a vanadium infiltrated layer. The guide plate 3 and the gear plate are respectively provided with two chain pin shaft holes with a pitch of 6.27-6.29 mm; the inner distance between the two inner chain plates of the chain links of the guide plate 3 is ≥ 3.1 mm. The increase rate of the two ends of the chain pin 2 protruding from the guide plate 3 is not less than 3%, and the enlarged diameter is ≥ 2.47 mm; the length of the protruding part is ≥ 0.65 mm; the periphery of the enlarged part is angular And the angle between t...

Embodiment 2

[0013] Embodiment 2: On the basis of Embodiment 1, the metal infiltrated layer 5 is a vanadium infiltrated layer, which has high reliable heat resistance, wear resistance, oxidation resistance and corrosion resistance, and can adapt to different environments respectively Medium, so that the service life of the chain pin has been improved several times.

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Abstract

The invention relates to a vanadinizing timing chain for an engine, which can replace a belt and a gear, also has the advantages of being heat-resistant, wear-resistant, oxidation-resistant, corrosion-resistant and long in service life, and can meet the requirements of high rotation speed, variable load and high impact of the engine. A chain pin shaft is a GCr15 pin shaft, and a surface layer of the GCr15 pin shaft is a metallic cementation layer; the vanadinizing timing chain comprises an engine timing chain; the chain pin shaft in the engine timing chain is the GCr15 pin shaft, and the surface layer of the GCr15 pin shaft is the metallic cementation layer; a chain plate in the engine timing chain is tooth-shaped, and the tooth-shaped meshing arc surface is a concave-convex tooth meshing surface. The vanadinizing timing chain has the advantages that 1 the pin shaft is prepared from a GCr15 material, and the GCr15 pin shaft is subjected to chemical thermal treatment by adopting a metallic cementation, so that the chain pin shaft has the advantages of being heat-resistant, wear-resistant and oxidation-resistant; 2 the shearing strength of the pin shaft is increased, through extrusion and elastic deformation of the aperture of a tooth plate, abrasion on the apertures of the pin shaft and the tooth plate is reduced, the service life of the whole chain is prolonged, and the static strength of the whole chain is increased.

Description

technical field [0001] The invention relates to an engine vanadium penetration timing that can replace belts and gears, has heat resistance, wear resistance, oxidation resistance, corrosion resistance, long service life, and can meet the requirements of high speed, variable load, and multiple impacts of the engine. A chain belongs to the field of auto parts manufacturing. Background technique [0002] CN101644308A, titled "a chain pin shaft and its manufacturing method", sequentially undergoes chopping, punching, cutting, 2 / 4 rounding, 3 / 4 rounding, 4 / 4 rounding and full circle processing, and strengthened treatment, surface smoothing After being washed and cleaned, a rolled chain pin shaft with a seam is obtained, the pin shaft is a hollow structure, and at least one oil penetration hole is opened at the seam. Its shortcomings: poor heat resistance, wear resistance, oxidation resistance and corrosion resistance. [0003] CN101451451A, the name "the silent timing chain of ...

Claims

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Application Information

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IPC IPC(8): F16G13/04
CPCF16G13/04F16G13/06F16G15/04F16G15/12
Inventor 姚胜强费侃王建华姚敏娜
Owner HANGZHOU CHIZHENG TECH
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