Micro-embedded self-lubricating texture on surfaces of gear and cam and preparation method thereof

Abstract

The invention discloses a micro-embedded self-lubricating texture on the surfaces of a gear and a cam and a preparation method thereof. The preparation method comprises the following steps of: performing micro texture processing on the surfaces of the gear and the cam by an Nd: YAG laser processing technology; and embedding a solid lubricant into the micro texture on the surfaces of the gear and the cam by a molding bonding technology of a self-lubricating composite material. The self-lubricating composite material comprises the following formula components in percentage by mass: 15 to 85 percent of polyimide (PI), 0 to 85 percent of polytetrafluoroethylene (PTFE), 10 to 40 percent of MoS2, 0 to 15 percent of WS2, 0 to 16 percent of graphite fluoride, 5 to 15 percent of graphite, 0 to 12 percent of PbO, 0 to 6 percent of antimony trioxide, 0 to 10 percent of CaF2 or BaF2, 0 to 15 percent of hexagonal boron nitride, 0 to 15 percent of nano lubricant and 0 to 5 percent of additive. According to the micro-embedded self-lubricating texture, the self-lubricating texture is subjected to micro embedding on the surfaces of the gear and the cam to ensure that the solid lubricant on the friction surface is stably supplied and uniformly coated, so that the lubrication and anti-wear properties of friction pairs such as the gear and the cam under complicated and harsh operating conditions are improved.

Description

technical field [0001] The invention relates to a lubrication method for gears and cams, in particular to a solid self-lubricating treatment method on the surface of a friction pair. It is used to solve the problem of lubrication and wear reduction of gears and cam surfaces under complex and severe working conditions. Background technique [0002] The tribological behavior of friction pairs (such as gears, cams, etc.) directly affects the load-carrying capacity, operating efficiency and service life of the mechanical system. With the rapid development of modern industrial technology, higher and higher requirements are put forward for the ability of friction pairs to adapt to complex and harsh working conditions. Fluid lubrication alone sometimes cannot fully exert its lubricating effect. Solid lubrication has broken through the limit of oil film lubrication and has become an important development direction of lubrication technology at present, and has become a solution to l...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a micro-embedded self-lubricating texture on the surface of gears and cams and its preparation method, so as to improve the ability of friction pairs such as gears and cams to adapt to complex working conditions

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