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Three-plane concurrent construction method and star wheel of single-screw compressor constructed by same

A construction method and construction technology, applied in the field of the star wheel of a single screw compressor, can solve the problems such as the inability to accurately obtain the contact sealing working area, deviating from the meshing law of the space conjugate meshing pair, and unable to obtain the instantaneous contact area, etc.

Inactive Publication Date: 2011-06-22
李锦上
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[2] "Either the profile of the star wheel has not been really designed, and the profile of the star wheel can only be obtained by rolling cutting on a special machine manufactured according to the movement principle of the screw and the star wheel." The star wheel is equivalent to a spherical worm gear, and its tooth surface It is the envelope surface of the screw tooth surface and can only be processed by hobbing
This method cannot accurately obtain the 5, 10 and 13 contact sealing working areas in the accompanying drawing 2 of this specification, let alone the instantaneous contact areas marked by 6, 7, 11, 12, 13 and 14, which has deviated from the space in essence. The meshing law of the conjugate meshing pair, it is impossible to get the exact meshing pair

Method used

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  • Three-plane concurrent construction method and star wheel of single-screw compressor constructed by same
  • Three-plane concurrent construction method and star wheel of single-screw compressor constructed by same
  • Three-plane concurrent construction method and star wheel of single-screw compressor constructed by same

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Embodiment Construction

[0036] In order to clearly understand the present invention, it is further described with an embodiment:

[0037] 1. Construct the primary envelope surface B of the cylindrical surface on the screw.

[0038] In the single-screw compressor system represented by three spaces O, I, and II, the reference space or static space represented by O is the body, the motion space represented by I is the star wheel, and the motion space represented by II is the screw. A cylindrical surface is used as the production surface to replace a tooth of the star wheel, and the star wheel is pressed against the casing movement, the screw relative to the housing does sports, The cylindrical production surface envelops the primary envelope surface B on the screw, and the vector function of the primary envelope surface B is The meshing equation N·V=0 that satisfies the primary envelope, N is the normal vector of a point on the primary envelope surface B, and V is the relative motion velocity of ...

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Abstract

The invention discloses a star wheel (1). The star wheel (1) comprises a front side face (2), a tooth crestal face (3) and a rear side face (4) of star wheel teeth, and is characterized in that: the front side face, the tooth crestal face and the rear side face of the star wheel teeth are generated by a three-plane concurrent construction method. The three-plane concurrent construction method comprises the following steps of: constructing the front side face of the star wheel by using an axial plane theta Lj and a radial plane uk of a front enveloping surface; constructing the rear side face of the star wheel by using an axial plane theta Lj and a radial plane uk of a rear enveloping surface; and constructing the tooth crestal face of the star wheel by using an axial plane theta Lj and a radial plane theta lk of a tooth crestal enveloping surface.

Description

technical field [0001] The invention relates to the technical fields of software development, mechanical design and manufacture, in particular to a three-surface co-point construction method of a secondary envelope surface of a space conjugate meshing pair and a star wheel of a single-screw compressor constructed by the method. Background technique [0002] Space conjugate meshing theory is applicable to a wide range of fields, such as cutting tools, grinding tools, and grinding wheels in machining; extrusion wheels, rolls, and molds in material forming; cams, gears, worm gears, and toroidal worm gears in mechanical transmission; Single-screw compressors, single-screw expanders, screw compressors and pumps in fluid machinery; precision instruments, conjugate meshing mechanisms and other devices that require conjugate meshing; etc. [0003] The design and manufacture of space conjugate meshing pairs can be realized by envelope method. [0004] In a mechanical system containi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C29/00
Inventor 李锦上
Owner 李锦上
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