Surface lubricating texture, compressor parts, compressor and air conditioner

Abstract

The invention provides a surface lubricating texture, compressor parts, a compressor and an air conditioner. The surface lubricating texture comprises a dynamic pressure lubricating surface (1), a hole structure is arranged one the dynamic pressure lubricating surface (1), and the hole structure is arranged in a flowing direction of fluid; the hole structure comprises first hole (2) and second hole (3); the first holes (2) and the second holes (3) are arranged at intervals, and the hole depth of the first holes (2) is smaller than the hole depth of the second hole (3). According to the surfacelubricating texture provided by the invention, long-term oil storage and oil returning functions are met while sufficient fluid dynamic pressure effect can be provided, the reliable and stable operation and long-service-life requirements of a friction pair are effectively ensured.

Description

technical field [0001] The application relates to the technical field of tribological characteristics of mechanical parts, in particular to a surface lubricating texture, compressor parts, compressors and air conditioners. Background technique [0002] During the long-term operation of the compressor, abrasive particles, adhesion, fatigue and other wear forms often occur on the surface of the friction pair of key components, which seriously affects the long life and stable operation of the compressor. In order to solve the problem of friction and wear on the surface of the friction pair, the traditional tribology theory believes that the smoother the surface of the friction pair, the better the friction performance. However, the theoretical research and engineering practice in recent years have also shown that the smoother the surface of the friction pair, the better. A certain surface roughness On the contrary, it is beneficial to the formation of lubricating oil film to re...

AI Technical Summary

Problems solved by technology

However, affected by changes in working conditions, especially at low speeds and high loads, the dynamic pressure effect of the texture is not enough to maintain stable fluid lubrication. Long-term friction will cause the oil stored in the texture to be carried and squeezed to discharge the lubrication area, resulting in a sharp reduction of oil storage inside the texture, forcing the friction surface to be in a state of boundary lubrication and mixed lubrication after a period of operation, resulting in problems such as increased friction coefficient and severe wear

[0003] In order to solve this problem, a variety of solutions have been proposed in the prior art. These solutions focus on improving the hydrodynamic pressure performance from the direction of pattern design, and require the external oil supply system to continuously provide lubricating oil to maintain the fluid lubrication state of the end surface. The texture itself cannot achieve the purpose of long-term oil storage, resulting in complex auxiliary systems and serious lubricating oil consumption

However, when external disturbances cause changes in operating conditions, especially under low-speed and high-load conditions, the dynamic pressure effect of the texture texture is weak, and the amount of oil in the lubrication gap is insufficient. Long-term friction can easily cause the oil stored in the texture to be carried and squeezed. Press and discharge the lubricating area, forcing the friction surface to be in the state of boundary lubrication, mixed lubrication, etc., and then friction and wear will occur

[0004] Therefore, the existing texture texture cannot provide sufficient hydrodynamic pressure effect and meet the long-term oil storage and oil return function, and cannot guarantee the reliable and stable operation and long life requirements of the friction pair

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