Analysis of Meshing Characteristics of 8-Shaped Disc Seal Screw Pump

doi:10.7652/xjtuxb202109018

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Analysis of Meshing Characteristics of 8-Shaped Disc Seal Screw Pump

更新时间：2025-07-09

- Analysis of Meshing Characteristics of 8-Shaped Disc Seal Screw Pump
- Vol. 55, Issue 9, Pages: 161-167(2021)
- 作者机构：
  
  中国石油大学(华东)新能源学院,山东,青岛,266580
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb202109018
  CLC： TN23
- Online First：10 September 2021，
  
  Published：2021
- 稿件说明：
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Analysis of Meshing Characteristics of 8-Shaped Disc Seal Screw Pump[J]. 2021, 55(9): 161-167.
DOI：

Analysis of Meshing Characteristics of 8-Shaped Disc Seal Screw Pump[J]. 2021, 55(9): 161-167. DOI： 10.7652/xjtuxb202109018.

摘要

针对传统的圆盘密封单螺杆泵排量小、振动大、不能实现完全的自驱动等问题

创新性地提出了一种新型的8字形盘密封螺旋泵; 基于空间啮合原理建立了8字形密封盘-螺杆转子啮合副的型面方程

研究了8字形盘任意圆心角位置处的啮合特性

并分析了啮合副的结构参数对啮合特性的影响。研究结果表明:在8字形盘转动过程中

不同圆心角截面处啮合角的上下浮动范围不同

圆心角β越接近0

啮合点的波动程度越剧烈; 当圆心角β∈(0

π/2)时

啮合部位主要集中于中性面下方

当圆心角β∈(-π/2

0)时

啮合部位主要集中于中性面上方; 8字形盘大圆半径对啮合角变化程度的影响最大

中心距及8字形盘边缘倒角半径的影响较小。上述研究结果对8字形盘密封螺旋泵的进一步研发设计具有一定的指导意义。

Abstract

Aiming at the problems that the displacement is small and the self-driving is difficult to realize for traditional disc-seal single screw pump(DSSP)

this paper proposes a new type of 8-shaped disc seal screw pump

and the profile equation of the screw rotor-disc seal is established based on the spatial meshing theory. The profile equation is used to study the meshing characteristics of the 8-shaped disc seal

and the influence of structural parameters of the meshing pairs on meshing characteristics is analyzed. The results indicate that the fluctuation degree of the meshing angle is different at different central angle sections. The fluctuation degree of the meshing angle is the most severe when the central angle β is close to 0. The meshing parts are mainly concentrated below the neutral surface when β∈(0

π/2)

and above the neutral surface when β∈(-π/2

0). The radius of the big circle of the 8-shaped disc seal has the greatest influence on the variation degree of the meshing angle

while the center distance and the chamfering radius of the 8-shaped disc seal have little influence. This research may have certain guiding significance for the design and further development of 8-shaped disc seal screw pump.

关键词

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