Face pressure reducer of closed compressor

Abstract

The face pressure reducer of closed compressor includes cylinder, rotation shaft, upper and lower bearing boards, partition board, guide board and spring for guide board. Technologically, the present invention features that at least one notched pressure exhausting spigot is set on the thrust bearing side of each bearing board axially supporting the rotation shaft or one thrust side of the rotation shaft corresponding to the thrust bearing side of each bearing board, and the pressure exhausting spigot has certain volume to hold compressed gas. The present invention can reduce face pressure acting on the thrust bearing of bearing board or on the thrust bearing of the rotation shaft and prevent the wear of the two parts.

Description

technical field [0001] The invention relates to a surface pressure weakening device of a hermetic compressor, more precisely, the internal space of the cylinder is divided into a plurality of compression chambers by a partition plate so as to reduce the pressure applied on the rotating shaft and the bearing corresponding to the rotating shaft. Invention on face pressure on thrust faces between plates. Background technique [0002] In a general vane compressor, the guide plate is inserted and combined with the rotating body, and the rotating body is rotated while the internal space of the cylinder is divided into a suction area and a compression area, and the above-mentioned suction area and compression area are continuously alternated. , Inhale, compress, and discharge fluid. [0003] figure 1 It is a longitudinal sectional view of the compressor part of the prior art vane type hermetic compressor. [0004] like figure 1 As shown, the prior art vane type hermetic compres...

AI Technical Summary

Problems solved by technology

like figure 2 and image 3 As shown, in the compressor in which the shaft part 4a and the expansion part 4b of the rotating shaft 4 are formed concentrically, the torque of the rotating shaft 4 is smaller than that of the above-mentioned compressors with different structures, and the concentrated load is applied to the diameter bearing a relatively small load. On the above-mentioned thrust bearing portion 3a on the opposite side of the bearing portion 3b, finally the thrust bearing portion 3a of the above-mentioned upper bearing plate 3A and the lower bearing plate 3B corresponds to the thrust bearing portion 3a of the upper bearing plate 3A and the lower bearing plate 3B Between the expansion part 4b of the rotating shaft 4, serious wear occurs

[0018] This shows that above-mentioned existing vane type compressor still has many defectives, and Cheng needs to be improved

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