Totally-engaged double-vortex tooth with gradually-changed wall thickness

Abstract

The invention discloses a totally-engaged double-vortex tooth with gradually-changed wall thickness. An engaged molded line of a first fixed vortex tooth (1) is in smooth connection through four sections of curves. The four sections of curves comprise an equal-distance curve H1I1 of a first variable-diameter base circle involute, an equal-distance curve H1G1 of a first circle involute, an equal-distance curve G1M1 of a second circle involute and an equal-distance curve M1N1 of a second variable-diameter base circle involute. A second fixed vortex tooth (2) and the first fixed vortex tooth (1) are completely the same and are rotated clockwise by 90 degrees with the center point O as the center to obtain a first movable vortex tooth (3) and a second movable vortex tooth (4). In the work process, the movable vortex teeth and the fixed vortex teeth are completely and correctly engaged. According to the provided totally-engaged double-vortex tooth with the gradually-changed wall thickness, the air inflow of a vortex compressor can be increased, the area utilization rate is increased, the compression ratio is increased, the work performance of the vortex tooth is improved, and designing and machining of the vortex tooth are facilitated.

Description

technical field [0001] The invention belongs to the technical field of compressor engineering, in particular to a scroll tooth profile of a scroll compressor. Background technique [0002] The double-scroll compressor has the advantages of large displacement, small scroll diameter and small change in gas force. The design of the scroll profile has a great influence on the performance of the scroll compressor. [0003] China applied for an invention patent (Application No. 201010216612.6), disclosing a scroll tooth profile of a scroll compressor. The scroll tooth profile is composed of circular arcs and line segments in sequence. Thick scroll teeth, orbiting scroll teeth and fixed scroll tooth head tips do not participate in meshing. [0004] In order to solve the problem of incomplete meshing of the gradual wall thickness scroll and the complex design of the gradual wall thickness scroll profile, and then increase the intake air volume of the scroll compressor, improve the...

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Problems solved by technology

[0005] In order to solve the problem of incomplete meshing of the scroll teeth with gradual wall thickness and complicated design of the spiral tooth profile with gradual wall thickness, the present invention increases the intake air volume of the scroll compressor, increases the compression ratio, and satisfies the requirements of different pressure chambers. To meet the requirements of the strength of the rotor, increase the strength of the scroll teeth, improve the area utilization rate, and propose a fully meshing double scroll tooth with gradual wall thickness

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