Crankshaft bearing of compressor and compressor

Abstract

The invention provides a crankshaft bearing of a compressor and the compressor. The crankshaft bearing of the compressor comprises a bearing body (1). The upper end face of the bearing body (1) is located below a rotor assembly (2) of the compressor and is further provided with grooves (12). A rolling body (3) is arranged in each groove (12) and can be connected with the lower end face of the rotor assembly (2) so as to support the rotor assembly (2) through the rolling bodies (3). Through the crankshaft bearing, deflection of a long shaft of a crankshaft can be limited, the long shaft of thecrankshaft cannot be bent, the stability of crankshaft rotating can be improved, and wear between the crankshaft and the bearing is effectively avoided and reduced; and an air gap of a stator and rotor assembly can be prevented from being reduced, and the situations of interference colliding, electromagnetic noise and the like are avoided.

Description

technical field [0001] The invention belongs to the technical field of compressors, and in particular relates to a crankshaft bearing of a compressor and the compressor. Background technique [0002] The structure design of the existing rotary compressor, the rotor assembly is provided with an inner hole, which is an interference fit with the long axis of the crankshaft, and the upper and lower end surfaces are equipped with balance blocks, which generate centrifugal force with the rotation of the compressor, to balance the eccentric circle of the crankshaft and the centrifugal force of the piston force rotation function, thereby reducing compressor vibration and noise. [0003] The crankshaft rotates at high speed under the constraints of the bearings. The unbalanced force generated by the rotor assembly causes the long axis of the crankshaft to bend to a certain extent, and changes the original balance design parameters. The rotation stability of the crankshaft decreases, ...

AI Technical Summary

Problems solved by technology

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the high-speed rotation of the compressor crankshaft under the constraint of the bearing in the prior art. The unbalanced force generated by the rotor assembly causes the long axis of the crankshaft to bend due to a certain disturbance, resulting in stable rotation of the crankshaft. Sexual decline, easy to wear defects with bearings, so as to provide a compressor crankshaft bearing and compressor

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