Sliding valve tool for twin-screw compressor and sliding valve processing method

Abstract

The invention discloses a sliding valve tool for a twin-screw compressor and a sliding valve processing method. The invention aims to provide a sliding valve tool for a twin-screw compressor, which can be used for effectively improving the precision and the percentage of pass of the lambdoidal cambered surface of the sliding valve and guaranteeing to improve the cooperation precision of the lambdoidal cambered surface and screws, and a sliding valve processing method. The sliding valve tool for a twin-screw compressor comprises a bottom plate, a fixing structure and two stand columns, wherein the fixing structure is arranged on one side of the upper surface of the bottom plate and is used for positioning and fixing the sliding valve; the two stand columns are arranged on the other side of the upper surface of the bottom plate; a guide hole is respectively arranged on the side surfaces of the two stand columns; a clock setting pin is respectively arranged in each guide hole in a sliding mode; locking bolts for fixing the clock setting pins are arranged on the stand columns; and one end surface of each clock setting pin respectively faces to the fixing structure. The sliding valve processing method comprises the steps that the sliding valve tool and the sliding valve are fixed on a processing platform of a numerically-controlled machine tool, and the lambdoidal cambered surface of the sliding valve is subjected to fine boring by the boring cutter of the numerically-controlled machine tool.

Description

technical field [0001] The invention relates to a slide valve tooling of a compressor, in particular to a slide valve tooling of a twin-screw compressor and a slide valve processing method. Background technique [0002] At present, the energy adjustment method of the existing screw compressor is mostly slide valve adjustment. Such as Figure 5 As shown, a common screw and slide valve structure of a twin-screw compressor, wherein the slide valve 16 is provided with a herringbone arc surface 18 and an outer circular surface 17 matching the inner wall of the compression body 25 . The two arc surfaces of the herringbone arc surface 18 cooperate with the corresponding screw rod 26 . The processing accuracy of the herringbone arc surface 18 matched with the screw rod 26 on the slide valve 16 is particularly important, and the matching accuracy of the herringbone arc surface and the screw rod directly affects the working efficiency of the screw compressor. [0003] There are two ...

AI Technical Summary

Problems solved by technology

[0005] The first purpose of the present invention is to overcome the existing sliding valve tooling. After the herringbone arc surface of the slide valve is processed, it is difficult to directly measure the diameter of the processed herringbone arc surface on the tooling, resulting in the The problems of poor accuracy and high failure rate of the herringbone arc surface; provide a dual method that can directly measure the diameter of the processed herringbone arc surface on the tooling, and effectively improve the precision and pass rate of the herringbone arc surface of the slide valve. Slide valve tooling for screw compressors

[0006] The second purpose of the present invention is to overcome the problem that the existing sliding valve processing method is easy to reduce the processing accuracy of the herringbone arc surface of the slide valve, thereby reducing the matching precision between the herringbone arc surface and the screw rod, and to provide a method that can effectively improve the precision of the slide valve. The processing accuracy of the herringbone arc surface, and then improve the precision of the matching between the herringbone arc surface and the screw.

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