它由电动机、传动机构和卷筒或链轮组成，分为钢丝绳和环链两种。
It consists of motor, drive mechanism and the drum or sprocket composition, divided into two types of wire rope and chain.
介绍了德马格公司新型DR钢丝绳电动葫芦的系列参数、结构特点、主要传动部件和安全保护装置。
This paper presents series parameters, structural characteristics, main driver components and safe protection devices of Demag's new DR rope hoist.
对采用钢丝绳传动的LS-2型半连续铸造机的不可逆调速系统存在的问题进行了全面分析；
The problem in the old non - reversing speed control system of LS-2 D. C casting machine with rope driving are analyzed and discussed;
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