Self-aligning ball bearing for small loads and with integrated variable speed function

Abstract

The invention relates to a self-aligning ball bearing for small loads and with an integrated variable speed function. The self-aligning ball bearing is mainly used under the small-load condition and adjusts the speed distribution condition of a mechanism running within one period. The ball bearing comprises an outer ring, rolling bodies, holders, an inner ring, magnetorheological fluid, an isolation ring, an electromagnetic coil, piezoelectric ceramic and an insulation body. Two annular grooves are formed in the inner wall of the outer ring, and the electromagnetic coil is wound on one annular groove; the piezoelectric ceramic is mounted on the other annular groove; and the outer ring is isolated from the piezoelectric ceramic through the insulation body. A sealed cavity is formed by the inner ring, the outer ring and the isolation ring, and the magnetorheological fluid is sealed in the sealed cavity and is isolated from the electromagnetic coil through the isolation ring; and a non-annular small boss is arranged on the outer wall of the inner ring, and the small boss does the periodic motion in the annular groove with the piezoelectric ceramic; and a channel is formed between the electromagnetic coil and the piezoelectric ceramic and is used for conducting the positive electrode and the negative electrode of the piezoelectric ceramic and the two ends of the electromagnetic coil.

Description

technical field [0001] The present invention relates to self-aligning ball bearings, in particular to self-aligning ball bearings with integrated speed change function for small loads. Background technique [0002] With the continuous advancement of science and technology, the efficiency of mechanical equipment has become a hot topic in the industry. Especially in many small and medium-sized enterprises that focus on production, the concept of quantity is very important. In this case, they have invested a certain amount of time. The cost is used to improve the operating efficiency of the machine. However, the internal structure of some improved machines is more complicated, or various hydraulic and pneumatic systems are added externally for speed regulation. If there is a set of devices, without changing the original mechanical structure of the machine or adding an external speed-adjusting hydraulic or pneumatic system, only one part inside the machine can be replaced to ach...

AI Technical Summary

Problems solved by technology

[0002] With the continuous advancement of science and technology, the efficiency of mechanical equipment has become a hot topic in the industry. Especially in many small and medium-sized enterprises that focus on production, the concept of quantity is very important. In this case, they have invested a certain amount of time. The cost is used to improve the operating efficiency of the machine. However, some improved machines have more complicated internal structures, or various external hydraulic and pneumatic systems for speed regulation.

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