B.小车设计本节将论述起重机设计中的小车组成部分,即悬具、绳索、卷筒、卷扬机构、制动器、限位开关、小车驱动机构,走轮、小车架、集电器和辅卷机构。为了减小小车的重量和尺寸,利用齿轮传动机构和绳索系统的组合将电动机的转矩和速度转变为吊钩的“牵引”。小车的重量影响桥架和轨道的设计,如能将小车尺寸设计得小, B. Car Design This section will discuss the car components of the crane design, namely suspension, rope, reel, winch, brakes, limit switches, car drive mechanism, go round, small frame, collector and auxiliary volume mechanism. In order to reduce the weight and size of the trolley, the combination of a gear mechanism and a rope system translates the motor torque and speed into a “pull” of the hook. The weight of the car affects the design of the bridge and the track. If the size of the car can be designed small,