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Vacuum pump rotor and vacuum pump

A vacuum pump and rotor technology, applied in the direction of pumps, pump components, rotary piston pumps, etc., can solve the problems of tool runout and machining difficulties, and achieve the effect of avoiding tool runout and eliminating sharp points.

Pending Publication Date: 2022-07-22
四川莱斯特真空科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, during the manufacturing process of the vacuum pump rotor, tool jumping is prone to occur, resulting in processing difficulties

Method used

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  • Vacuum pump rotor and vacuum pump
  • Vacuum pump rotor and vacuum pump
  • Vacuum pump rotor and vacuum pump

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Embodiment Construction

[0036] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

[0037] Thus, the following detailed description of the embodiments of the invention provided in the accompanying drawings are not intended to limit the scope of the invention as claimed, but are merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary s...

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Abstract

The embodiment of the invention provides a vacuum pump rotor and a vacuum pump, and relates to the field of vacuum pumps. The end face profile of the vacuum pump rotor comprises a curve L, the curve L comprises a cycloid AB, a dedendum circle arc BC, an outer circle arc CD, an involute DE, an inner circle arc EF and an addendum circle arc FA which are sequentially connected, the vacuum pump rotor is a screw rotor, the radius of the outer circle arc CD is r1, the radius of the inner circle arc EF is r2, the outer circle arc CD is tangent to the dedendum circle arc BC and the involute DE at the same time, and the involute DE is tangent to the addendum circle arc FA. The inner circle arc EF is tangent to the involute DE and the addendum circle FA at the same time, so that the sharp point of the end face molded line of the vacuum pump rotor can be eliminated, the end face molded line is in smooth transition, and machining difficulty caused by cutter jumping in the machining process is avoided.

Description

technical field [0001] The invention relates to the field of vacuum pumps, in particular to a vacuum pump rotor and a vacuum pump. Background technique [0002] Vacuum pump is an important member of industrial equipment. For example, screw vacuum pump is a pumping device that uses a pair of screw rotors in the pump body to perform synchronous high-speed reverse rotation to generate suction and exhaust. It is an update of oil-sealed vacuum pumps. The new generation product can extract the gas containing a large amount of water vapor and a small amount of dust, and is widely used in modern industry. For the screw vacuum pump, its key technology is the intermeshing screw, and the key of the intermeshing screw is the end profile. The end profile directly affects the performance of the screw vacuum pump, such as sealing, efficiency, area utilization factor, etc., which also determines the The manufacturing cost of the pump. [0003] In the prior art, during the manufacturing pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C18/16F04C25/02F04C29/00
CPCF04C18/16F04C25/02F04C29/00F04C2240/20F04C2250/20
Inventor 蔡旭周贤忠谢兴王远侯亚旅游诗琪周游龙沈文武
Owner 四川莱斯特真空科技有限公司
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