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Novel double-screw compressor rotor profile

A compressor rotor and twin-screw technology, applied in the field of compressors, can solve the problems of weak tooth strength and poor processing, and achieve the effects of reducing noise and vibration, eliminating sharp points and high strength

Active Publication Date: 2022-08-09
爱景节能科技(上海)有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional female rotor teeth are thinner, the tooth strength is weaker, and it is not easy to process.

Method used

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  • Novel double-screw compressor rotor profile
  • Novel double-screw compressor rotor profile
  • Novel double-screw compressor rotor profile

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Embodiment Construction

[0026] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention.

[0027] like Figure 1 to Figure 3 As shown, a new twin-screw compressor rotor profile, including male rotor profile 1 and female rotor profile 2, has a male rotor and a female rotor gear ratio of 4 to 6: 5 to 8; For high exhaust pressure conditions, choose 4:5, 4:6, 5:6, 5:7, 6:7, 6:8 and other different combinations.

[0028] The tooth shapes of the male rotor and the female rotor are all bilateral asymmetric tooth shapes with circular arc and circular arc envelope as the basic unit.

[0029] The male rotor consists of the first arc HI of the male rotor, the second arc IJ of the male rotor, the third arc JK of the male rotor, the fourth arc KL of the male rotor, the arc envelope LM of the male rotor, an...

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Abstract

A novel double-screw compressor rotor profile comprises a male rotor profile and a female rotor profile, and tooth profiles of a male rotor and a female rotor are bilateral asymmetric tooth profiles with arcs and arc envelope lines as basic composition units. The male rotor molded line and the female rotor molded line are bilateral asymmetric tooth shapes which are obtained through analysis according to the meshing envelope principle and all take circular arcs and circular arc envelope lines as basic composition units, adjacent curves are in smooth tangent connection, contact lines are continuous, and meshing lines are completely closed. The rotor is in a streamline shape, sharp points in a tooth shape are thoroughly eliminated, the length of a contact line is moderate, and the leakage triangle area of a high-pressure side is small. During production and processing, a driving belt (2-3mm in length) is arranged near the pitch circle of the long side of the female and male rotor, and reasonable gaps are reserved in other places. The female rotor and the male rotor are in pure rolling without relative sliding, so that abrasion can be reduced, transmission is stable, and noise and vibration are further reduced. And the female rotor is thick in tooth and higher in strength. And the rotor area utilization coefficient is large.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to a twin-screw compressor rotor structure, and in particular to a new twin-screw compressor rotor profile. Background technique [0002] The twin-screw compressor rotor is the core component of the screw compressor, and the rotor profile fundamentally determines the overall performance of the screw compressor. The yin-yang rotor profile is composed of several different primary or secondary mathematical curves such as arc and arc envelope, point (straight line) cycloid, ellipse and ellipse envelope, parabola and parabola envelope, etc. The corresponding curves of each section are analytically obtained according to the principle of meshing envelope, and the different curves are tangentially connected and have a smooth transition. [0003] An excellent rotor profile requires smooth tooth profile (small flow loss), continuous and short contact line (good sealing effect), small lea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C18/16F04C29/00
CPCF04C18/16F04C29/00F04C2240/20
Inventor 谢日生伍黎孙志新彭寿福陈晓峰
Owner 爱景节能科技(上海)有限公司
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