According to the special requirements of a user ,an extensible belt conveyor is designed ,By selecting the appropriate mo-tor ,using soft starting device ,and increasing the pressure roller device ,the requirement of user is met .%根据用户的要求自行设计了特殊带式输送机 ,对输送机的结构进行了适应性开发 ,通过计算选取了合适的电机 ,采用了软启动装置 ,并增加了压带轮装置.
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