High-rotating-speed bearing

Abstract

A high-rotating-speed bearing comprises an assembly and a shell, wherein the assembly consists of at least two elements, a core hole, which penetrates in the axial direction, is formed in each element, and the core holes form a shaft hole of the assembly to allow a shaft core to penetrate. At least one element of the assembly is provided with at least one group of multiple grooves facing at least at one of two ends, at least one flared through groove is arranged in a core hole wall surface facing the at least one group of grooves, and the at least one through groove in the core hole wall surface is concavely provided with at least one group of multiple shaped grooves. The shell is provided with a cavity which penetrates in the axial direction for accommodating the assembly, at least one storage chamber for storing lubricating media is formed in the assembly, and the at least one group of multiple grooves forms at least one group of multiple runners, which communicates the at least one storage chamber with the shaft hole, between at least two adjacent elements in the assembly.

Description

technical field [0001] The invention provides a high-speed bearing, especially a high-speed bearing capable of forming a multi-channel dynamic pressure that continuously and strongly supports the rotation of the shaft core between at least one group of adjacent two units of the assembly, and circulating and recovering lubricating medium. Background technique [0002] Existing bearings operate in severe operating environments such as high temperature, low temperature, high load, and high vibration. Usually, after a short period of high-speed rotation of the shaft core, the lubricating media may be gradually exhausted, causing the shaft core to directly contact the shaft. High-frequency knocking and collisions occur on the wall of the hole, resulting in excessive wear and heat, which will eventually lead to abnormalities such as noise, shaft scraping, and hole expansion of the bearing and accelerated damage. This is an urgent technical problem that existing bearings need to sol...

AI Technical Summary

Problems solved by technology

[0007] None of the above-mentioned existing bearings has a special dynamic pressure and lubricating medium recovery mechanism design, lacks adjustability to the flow path of the lubricating medium and the position and capacity of the storage chamber, lacks flexibility to use multiple lubricating mediums, and has a complex structure Therefore, the application of these bearings to severe operating conditions such as high temperature, low temperature, high load, and high vibration has its limitations, and it is desired to apply these bearings to tens of thousands of revolutions per minute for a long time Even when the shaft core exceeds 100,000 revolutions, it is especially necessary to strengthen the dynamic pressure mechanism and structural strength to form a high-quality grinding interface and maintain precise coaxiality, so as to minimize the friction between the shaft core and the shaft hole

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