| 本文已被：浏览次 下载次 |
码上扫一扫！ |
|
|
|
| Meshing theory and application of single screw hydraulic machinery with arc tooth profile |
|
LI Zengliang1, SHI Baini2, LU Jiaqi3, HUANG Lijie4
|
|
(1.College of Mechanical Electronic Engineering in China University of Petroleum, Qingdao 266580, China;2.PetroChina Changqing Oilfield Company, Xi 'an 710021, China;3.PetroChina Southwest Pipeline Company, Chengdu 610041, China;4.Jinan Foreign Language Sanjian Brand School, Jinan 250107, China)
|
| Abstract: |
| The forming theory of arc tooth profile used in single screw hydraulic machinery was analyzed. The inside rolling envelope method and the tooth profile normal line method were used to solve the formula of conjugate tooth profile. The flow area and sectional areas of rotor and stator were analyzed. A prototype screw pump using arc tooth profile was designed. The volumetric efficiency of the prototype was predicted. The results show that the proposed design scheme and mathematical formulas of original tooth profile are feasible and correct. The arc tooth profile is very simple and the curvature is easy controlled, it is very beneficial for the design, processing and manufacturing. For the three heads screw pump with arc tooth profile, its volumetric efficiency under the designed pressure difference remains to be above 97%, and it can meet the design requirements. |
| Key words: arc tooth profile single screw meshing theory inside rolling envelope method curvature volumetric efficiency |
|
|