Author:
Shan Junfeng,Shi Youcheng,Ji Hong,Cao Shengbing,Li Zheng,Zhang Hucheng
Abstract
AbstractDirect-drive rotary valve (DDRV) is directly driven by a limited-angle torque motor (LATM), which is characterized by anti-pollution, high efficiency and high frequency response. A LATM is designed for the DDRV. The main dimensions and electromagnetic parameters of the motor are calculated by analytical expression of electromagnetic torque. The torque–angle characteristics and torque characteristics of LATM were analyzed by using finite element method for ensure that the motor can have stable torque output in a wide range of turning angle, the results of theoretical and simulation agree well. On the basis, the motor was improved. The results show that the motor has a working angle of ≥±20°, the torque fluctuation within the working angle is less than 5%, and is suitable for driving the DDRV.
Publisher
Springer Nature Singapore
Reference18 articles.
1. Tu F, Shi L, Li S, Chen C, Wei S, Su Z, Wei J (2022) Research progress of direct drive electro-hydraulic servo valve. Fluid Mach 50:61–70
2. Cui J (2008) Research on key technology of rotary direct acting electro-hydraulic servo valve. Zhejiang University
3. Yu J, Jiao Z, Wu S (2013) Design and simulation study on new servo valve direct driven by piezoelectric actuator using hydraulic amplification. Chin J Mech Eng 49:151–158
4. Guan C, Jiao Z (2014) A piezoelectric direct-drive servo valve with a novel multi-body contacting spool-driving mechanism: design, modelling and experiment. Proc Inst Mech Eng Part C-J Mech Eng Sci 228:169–185
5. Zheng J, He Z, Rong C, Xue G, Yang Z (2018) Application of giant magnetostrictive material in electro-hydraulic servo valve. Chin Hydraul Pneum 22–31