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Method for solving pump end face profile data of three-blade rotating cam rotor

A lobe lobe pump, line data technology, applied in image data processing, special data processing applications, complex mathematical operations, etc., can solve the problem of difficult to accurately match the design and production of three-blade rotary lobe lobe pumps

Pending Publication Date: 2020-11-20
WENZHOU POLYTECHNIC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the design and production of three-lobe rotary lobe rotor pumps are difficult to match accurately. If there is a method to obtain the end surface profile data of the three-lobe rotary cam rotor pump, it is possible to complete very complex formula curves and The calculation of irregular formula curves enables enterprises to make products better and faster

Method used

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  • Method for solving pump end face profile data of three-blade rotating cam rotor
  • Method for solving pump end face profile data of three-blade rotating cam rotor
  • Method for solving pump end face profile data of three-blade rotating cam rotor

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Embodiment Construction

[0044] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0045] Reference attached Figures 1 to 6 , a method for calculating end surface profile data of a three-lobe rotary lobe rotor pump, comprising the following steps:

[0046] Step S1, the calculation of the semi-major and minor axes a and b of the ellipse; according to the condition that the peak and valley boundary points of the elliptic curve are on the pitch circle line, the following equation is established:

[0047]

[0048] y=Xtgθ=0.5Rtgθ (2)

[0049] In formulas (1) and (2), R is the radius of the rotor pitch circle, φ angle is 60°, and θ is the boundary point angle; according to the elliptic equation

[0050]

[0051] Substitute equations (1) and (2) into (3) to get the equation

[0052] b 2 =0.16R 2 (1+1.5625tg 2 θ) (4)

[0053] At the same time based on

[0054] b=Rm-Rcos30°-0.5Rtgθ (5)

[0055] From the formulas (4) and (5), the para...

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Abstract

The invention discloses a method for calculating end face molded line data of a three-blade rotating cam rotor pump. The method comprises the following steps: calculating major and minor semi-axes a and b of an ellipse; an elliptic arc section equation; a conjugate curve PQ equation of the ellipse; data preservation. Compared with the prior art, the method has the advantages and effects that the research on a very complex formula curve and an irregular formula curve can be completed, so that a product can be made better and more quickly. According to the method, the cam rotor pump is convenient and effective to make, and all formula curves can be made.

Description

technical field [0001] The invention relates to the field of numerical control machining, in particular to a method for obtaining profile line data of an end surface of a three-blade rotary cam rotor pump. Background technique [0002] The three-lobe rotary lobe rotor pump is a rotary positive displacement pump with high efficiency and long service life. It is suitable for conveying temperature -30℃~+300℃, viscosity 30~1.0×105cSt, suspension liquid containing solid particles and corrosive and hygienic. For the medium with high requirements, the parts in the pump body that are in contact with the medium are made of stainless steel, and the pump speed can be changed according to the different physical properties of the conveying medium. [0003] In the prior art, the design and production of three-lobe rotary lobe rotor pumps are difficult to match accurately. If there is a method to obtain the end surface profile data of the three-lobe rotary lobe rotor pump, it is possible t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/17G06T17/00G06F17/11
CPCG06F30/17G06T17/00G06F17/11
Inventor 付炎杰
Owner WENZHOU POLYTECHNIC
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