Preparation of 3 MN build-up force standard machineTANG Chun-qian,GAO Fu-rong,CHEN Ming-hua,CHEN Shi-chao,XU Yin-jie, TAN Hong-hui,YI Wei1.National Institute of Measurement and Testing Technology,Chengdu 610021, China;2.Guangdong Institute of Metrology, Guangzhou 510405, ChinaAbstract:Based on ＂plane double enveloping hourglass worm gearing＂ technology, one kind of ＂axial clearance adjustable warm wheel and worm transmission pair＂ was developed. In the reducing mechanism of servomotor which was the power transmission of mechanical forcing device, the transmission pair could drive the crossbeam on the precise ball screw. This could be used to load the reference force transducer roughly. According to the ＂converse piezoelectric effect＂ principle in physics, piezoelectric ceramic force generator was prepared with piezoelectric ceramic materials and special technological methods, which was a micro-deformation compensator set. In the close-loop control system for precision loading of the forcing device, it could be used to precisely control the tiny force change of the reference force transducer under large load. At present, one build-up force standard machine with the maximum load capacity of 3MN was prepared.[著者文摘]
Key words:Plane double enveloping hourglass worm gearing; Piezoelectric ceramic; Converse piezoelectric effect;Piezoelectric ceramic force generator; Reference tronsdueer; Mechanical forcing device; build-up force standard machine
