›› 2013, Vol. 25 ›› Issue (5): 0-1118.

• 论文 •    

Design of performance testing system for the positive displacement pump used in crop protection equipment

XYU Jun;XYU Jian-yong;QI Ji-bao;WANG Bin;CHEN Jian   

  1. 1 National Center of Supervision and Inspection on Electric Machinery and Mechanical Components Products Quality, Taizhou 318000, China; 2 Zhejiang Industry Polytechnic College, Shaoxing 312000, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2013-09-25 Published:2013-09-25

Abstract: The positive displacement pump used in crop protection equipment, is mainly used for drug spraying of economic trees and field crops, and also for areas such as daily cleaning, sanitation and disinfection. Based on the requirements of industrial development and enhancing testing capabilities, it is inevitable to design a performance testing system with higher level of automation and intelligence. The positive displacement pump performance indicators, including volumetric efficiency and overall efficiency, are the basis for the design of performance testing system. The main design includes a universal mounting platform with multi\|degrees of freedom, a high-precision flow measurement device using weighting method and a control system with technology of sensor and computer, and the mathematical model of performance and fitting curve used in the performance testing system.

Key words: positive displacement pump, performance, multi-degrees of freedom, weighting method, computer technology, mathematical model