Deformation analysis of single-screw pump bush

ZHOU Pei-long，GU Ji-nan，LIU Yuan-qi

（School of Mechanical Engineering，Jiangsu University，Zhenjiang 212013，China）

Abstract：Aiming at the problem of the deformation of the shape of pump bush，the relationship between temperature and bush shape，the way to refine the shape of bush and the factors that influence the shrinkage of bush were investigated. The temperature field of the bush was simulated through Finite Element Analysis by combining the temperature field and the structure field. The results show that the more differences between the vulcanization temperature and working temperature，the greater deformation of the bushing，the deformation

of head is small，while the deformation of waist is large. By reducing the size of waist could ease the influence of temperature change，thus the size accuracy of the pump bush is refined.