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电梯的曳引能力是有关电梯运行安全的重要设计参数。在检验过程中,由于大多数生产厂商不主动提供电梯的设计曳引能力计算书,再者验收检验时因电梯的曳引绳与轮槽的摩擦力较大,因此检验人员不易发现电梯曳引能力存在的问题。笔者最近在对某工厂的1台曳引式载货电梯进行定期检验中发现,该电梯在空载向下运行起动时曳引绳与曳引轮槽有打滑的现象。这现象引起了我们的重视;电梯启动时一般来讲曳引轮与曳引绳打滑是由于
The traction capability of an elevator is an important design parameter related to the safe operation of the elevator. During the inspection process, because most manufacturers do not actively provide the design calculations for the traction capacity of the elevator, and because the friction between the traction rope and the wheel slot of the elevator is large during the acceptance inspection, the inspection personnel cannot easily find the traction of the elevator. Problems with competence. In a recent inspection of a traction elevator of a factory, the author found that the traction rope and the traction sheave had slippage when the elevator was started and operated at no-load. This phenomenon has aroused our attention; generally speaking, the traction sheave and the sheave rope slip are due to the elevator starting.