Composite surface structure friction pair

A technology of surface texture and surface friction, which is applied to rotating parts, bearings, and bearing components that resist centrifugal force, can solve problems such as unfavorable development trends, large environmental hazards, and impact on the service life of mechanical structures, achieving a wide range of applications and improving Excellent tribological properties and strong pressure bearing capacity

Pending Publication Date: 2018-07-03
UNIV OF JINAN
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Problems solved by technology

Although it is convenient and efficient to increase the lubricating medium, the lubricating medium cannot be used in some special working conditions, and affects the service life of the mechanical structure, which is harmful to the environment and is obviously not conducive to the current social development trend

Method used

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  • Composite surface structure friction pair
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[0030] Taking YT15 alloy steel as an example, the laser processing method uses Libra-HE femtosecond laser, combined with figure 1 The preparation of the present invention will be described.

[0031] The embodiment of the present invention provides YT15 composite surface texture design and processing method, including the following steps:

[0032] Step 1. The surface of YT15 needs to undergo a pre-treatment process before laser processing. The pre-treatment first uses boron carbide advanced polishing materials to grind YT15, and the entire grinding process is carried out on frosted glass; then use a polishing machine to polish YT15, so that its The surface roughness value Ra is about 0.04 on the Mitutoyo SJ-410 surface roughness measuring instrument; finally, it is cleaned ultrasonically in acetone solution for 15-20 minutes.

[0033] Step 2, optimize the design of the surface texture of the moving friction pair, the design results are as follows figure 1 As shown; the groove...

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Abstract

The invention discloses a composite surface structure friction pair and belongs to the technical field of mechanical motion friction pair surfaces. The composite surface structure friction pair structurally comprises an upper surface friction pair and a lower surface friction pair. A composite surface structure is machined on the surface of the lower surface friction pair. The composite surface structure comprises a plurality of first grooves, a plurality of second grooves, a plurality of first pits and a plurality of second pits. The plurality of first grooves are arranged in parallel. The plurality of second grooves are arranged in parallel. The first grooves and the second grooves are arranged in a crossed mode to form a netted groove structure. The first pits are arranged along the netted groove structure in sequence so as to be communicated by the netted groove structure. The second pits are arranged in the centers of rhombic-shaped grids formed by the netted groove structure. Thecomposite surface structure friction pair changes the boundary lubrication state of an oil film through the surface structure machined on the surface of the motion friction pair, and the friction coefficient and wear extent are reduced.

Description

technical field [0001] The invention relates to the technical field of mechanical motion friction pair surfaces, in particular to a composite surface texture friction pair. Background technique [0002] In industrial production, friction and wear are generally considered to be a harmful process. Reducing friction, improving wear resistance and new lubricating media are always the focus of research in the field of friction reduction and anti-wear, which is in line with the trend of green and sustainable development. In order to reduce the friction of the coupling motion friction pair of the traditional mechanical structure, the method of increasing the lubricating medium is generally adopted. Although it is convenient and efficient to increase the lubricating medium, the lubricating medium cannot be used in some special working conditions, and it affects the service life of the mechanical structure, which is harmful to the environment and is obviously not conducive to the cur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C33/10F16C33/14
CPCF16C33/1065F16C33/14F16C2220/80F16C2220/70
Inventor 杨学锋吴元博鹿重阳王守仁郭培全陈海龙王砚军乔阳王勇杨丽颖曹金龙李陈晨
Owner UNIV OF JINAN
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