Tooth-shaped rotor set

Abstract

The invention relates to a tooth-shaped rotor set. The tooth-shaped rotor set comprises a female rotor and a male rotor, the female rotor is provided with eight first tooth-shaped outlines, the male rotor is provided with six second tooth-shaped outlines, each tooth-shaped outline is formed through tangent connection and mutual corresponding of a plurality of arc lines, straight lines and oval arclines, and the tooth-shaped rotor set has the effects that the pressure gradient of the tooth-shaped rotor set can be improved effectively and the leakage phenomenon is reduced.

Description

technical field [0001] The invention relates to a rotor set, in particular to the structure of the rotor set. Background technique [0002] At present, the compressors on the market are widely used in industrial fields such as chemical industry, metallurgy, construction, machinery, refrigeration, etc., and the drive of the compressor rotor group mainly uses the helical rotor, and the helical rotor is mainly connected by the male rotor and the female rotor. Mesh rotation to control the fluid medium at the inlet and outlet, and because the use of the helical rotor is divided into symmetrical and asymmetrical, it also has a more complicated tooth profile curve, and therefore the compression performance of the compressor depends on The tooth profile curves of the male rotor and the female rotor not only affect the efficiency of the compressor, but also affect its service life and cost, and because the compression efficiency of the screw compressor mainly depends on the area betw...

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Problems solved by technology

[0003] In the prior art, the common configurations of the rotor group of the screw compressor between the male rotor and the female rotor are 4 pairs of 6 and 5 pairs of 6 teeth, but they only use 4 pairs of 6 and 5 pairs of 6 gear ratios. The pressure gradient is prone to leakage, and the design of the tooth shape does not take into account the setting range of its bottom circle and outer diameter. It will be manufactured in a design mode with a deep tooth groove, which will cause its axis to be in the corresponding assembly. When using a high-strength shaft, it is not possible to use a high-strength shaft, and the difference between the outer diameters of the male rotor and the female rotor is too large, and there will be uneven force and relatively difficult selection of bearings, and it is not suitable for high pressure differences and high pressure ratios. In the mechanical facilities, the selection of the deep tooth groove will also make the tooth blade thinner, which will affect its processing accuracy and compression efficiency

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