Research on the Meshing Characteristics of Disc-Seal Single Screw Pump

doi:10.7652/xjtuxb201805010

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Research on the Meshing Characteristics of Disc-Seal Single Screw Pump

更新时间：2025-07-09

- Research on the Meshing Characteristics of Disc-Seal Single Screw Pump
- Vol. 52, Issue 5, Pages: 69-74+107(2018)
- 作者机构：
  
  中国石油大学(华东)化学工程学院,山东,青岛,266580
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201805010
  CLC： TH32
- Online First：10 May 2018，
  
  Published：2018
- 稿件说明：
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Research on the Meshing Characteristics of Disc-Seal Single Screw Pump[J]. 2018, 52(5): 69-74+107.
DOI：

Research on the Meshing Characteristics of Disc-Seal Single Screw Pump[J]. 2018, 52(5): 69-74+107. DOI： 10.7652/xjtuxb201805010.

摘要

为了研究圆盘密封单螺杆泵的啮合特性

分析了圆盘密封单螺杆泵的结构特点和工作原理

根据空间啮合理论及三维坐标变换原理建立了螺杆转子-密封圆盘啮合副的型面方程。利用上述方程得到了密封圆盘任意转角位置处的啮合特性分析模型

研究了啮合副型面参数对螺杆转子-密封圆盘啮合副啮合特性的影响机理。结果表明:密封盘存在着较为严重的局部磨损且下半侧会先予磨损; 不同截面上的密封盘其啮合角范围不同

当圆心角接近π时啮合部位最为集中; 中心距、密封盘半径对啮合角变化影响较大

圆盘边缘倒角半径、偏心距的影响较小。通过对圆盘密封单螺杆泵啮合特性的研究

可为以后对其啮合副型面的优化设计提供一定的理论基础。

Abstract

As a commonly used rotary fluid machinery for high-viscosity sludge conveying

the disc-seal single screw pump has a core component of meshing pairs

which is composed of screw rotor and seal disc. So the meshing characteristics of the meshing pairs may significantly affect the performance of the pump body. In order to study the meshing characteristics of disc-seal single screw pump

the structural features and working principle of disc-seal single screw pump are analyzed. And the profile equations of the screw rotor-seal disc meshing pairs are established according to the spatial meshing theory and coordinate transform principle. Using the above profile equations

the meshing characteristics analysis model of an arbitrary sealing disk rotary angle is obtained

and the influencing mechanism of meshing parameters on the meshing characteristics is investigated. The results indicate that the sealing disc shows serious local wear and its lower half will be worn first

and that the meshing angle range of the sealing disc is different at different cross sections. The meshing angle range is the smallest when the central angle is close to π. The effects of the center distance and the sealing disc radius on the meshing angle variation are obvious

but the effects of the edge chamfer radius and eccentricity are small. This research can provide a theoretical basis for the optimal design of meshing pair profiles.

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