abstract drive
4.Abstract: The mechanism of vision automatic guided and automatic drive of farm working group and mechanism of achieving farm corn fertilizing at certain place in certain time with certain quantity fertilizer according to the recognized growing status of corn by machine vision were analyzed in the paper.
6.Abstract: The first and second order contact parameters of a spiral bevel gear drive are precontrolled by using the local synthesis method.Considering the contact pattern and transmission errors on toe,middle,heel contacts,the third order contact shortcomings are eliminated by optimizing the machine-tool settings.The overall control of engagement quality is realized.
8.Abstract: The urban commerce of San Francisco has been well-developed thanks to its sound exterior environment and inner drive created by the local government, such as facilitating the transportation network for shopping, developing commercial shopping centers and hot scenic spots, accordingly, to build an economic structure of tourism business.
9.Abstract: The development of Light Rail Vehicles in the wo rld is introduced,mainly in aspectsof car-body,bogie or running gear and elect ric drive system.The strategy for development of Chinese Light Rail Vehicles asmainly depending upon our own efforts and separated into three steps is proposed .
10.Abstract: In the light of the problems of the air balance system of Model LCJ1250 chain drive pumping unit, it is proposed to change the air balance with counterweight balance, and three criteria for the modification is put forward:(1) ensuring the reliability of the unit with smooth operation, low noise and long life;(2) cutting down the production cost and using less component parts as possible;(3) carrying out modification without such main technical parameters as stroke, pumping speed and maximum polished rod load.
