论文部分内容阅读
在曳引式电梯中引入了电气防剪切功能。曳引式电梯防剪切功能的引入,可以解决曳引式电梯上的一个根本性的安全问题:制动器机械失效后的二次保护。目前曳引式电梯制动器失效后一直没有一个合适的二次保护,构成曳引式电梯安全空缺。本文为解决这个重要安全问题做了一些探索。1曳引式电梯中对制动的相关保护在曳引电梯中,其制动由机电式制动器完成,但这仅仅意味着电梯低速滑车故障的具体原因和形式发生了变化,其中低速滑车的可能性照样存在。但在曳引式电梯中,在防止电梯的超速或下落的保护上,通常只设置了与限速器配对的安全
In the traction elevator introduced anti-shear function. The introduction of anti-shearing function of traction elevator can solve a fundamental safety problem on the traction elevator: secondary protection after mechanical failure of the brake. At present, there is no suitable secondary protection after the hoisting type elevator brakes fail to form a safe vacancy for the traction type elevator. This article explored this important security issue. 1 Traction elevator-related protection of braking In the traction elevator, the brake by the mechanical and electrical brake to complete, but it only means that the elevator low-speed pulley failure of the specific causes and forms have changed, including low-speed pulley may Sex still exists. However, in the traction elevator, to prevent the elevator speeding or falling protection, usually only set with the speed limiter paired safety