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Cam shaft structure with follow steps

A technology of camshafts and cams, which is applied in the direction of engine components, machines/engines, mechanical equipment, etc., can solve the problems that the rotary cutting chamfering machining method cannot be used, the processing time and cost are increased, and the structural size of the chamfering angle cannot be guaranteed. , to achieve the effect of reducing scratches and wear, low processing cost and easy operation

Inactive Publication Date: 2018-06-29
GUANGXI YUCHAI MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And because the shape of the cam is not circular, the machining method of rotary cutting and chamfering cannot be used
If the traditional chamfering method is directly used, not only the size of the chamfering structure cannot be guaranteed, but also the machining time and cost will be greatly increased

Method used

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  • Cam shaft structure with follow steps
  • Cam shaft structure with follow steps
  • Cam shaft structure with follow steps

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Embodiment Construction

[0018] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0019] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

[0020] Such as Figure 1 to Figure 3 As shown, the camshaft structure with follow-up steps according to the specific embodiment of the present invention includes: a camshaft 1 , a cam 2 and a follow-up step structure 3 . Wherein, the cam 2 is arranged on the camshaft 1, the cam 2 cooperates with the tappet 4, and the center line of the cam 2 and the center line of the tappet 4 are arranged eccentrically W. The follow-up s...

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Abstract

The invention discloses a cam shaft structure with follow steps. The cam shaft structure comprises a cam shaft, cams and follow step structures, wherein the cams are arranged on the cam shaft and matched with tappets, and the center lines of the cams and the center lines of the tappets are mutually and eccentrically arranged; and the follow step structures are arranged on the two side edges of thecams and are in the cam shape, and the each follow step structure is a small step of which the depth is 0.2mm in the cam radial direction and the width is 1mm in the cam axial direction. The cam shaft structure is reasonable in structural design and capable of effectively reducing tappet scratching and abrasion caused by the cams, the follow steps of the cam shaft structure are easy to machine, low in cost and capable of effectively reducing tappet scratching and abrasion caused by the cams, and thus, the service life of the tappets is prolonged.

Description

technical field [0001] The invention belongs to the technical field of engines, in particular to a camshaft structure with follow-up steps. Background technique [0002] For engines with tappets, since the diameter of the bottom surface of the tappet is larger than the width of the cam, the bottom surface of the tappet is often worn and scratched by both sides of the cam. The cause of the failure is that the cam is worn during work, which leads to the appearance of ridges on both sides. During work, the ridges on both sides of the cam wear and scratch the bottom surface of the tappet. At the same time, because the cam is easily damaged, the cam is shortened. shaft life. [0003] The cams of the prior art camshaft generally only require simple deburring, which cannot solve the problem of scratching the tappets on both sides of the cam due to wear and tear during the cam operation. Therefore, simply deburring the cam sides does not solve the above problems. And because the ...

Claims

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Application Information

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IPC IPC(8): F01L1/047
CPCF01L1/047
Inventor 张振坤吴定勇韩柳刘显宏林振丽
Owner GUANGXI YUCHAI MASCH CO LTD
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