엘리베이터 로프장력 자동조절기 개발에 관한 연구

Abstract

In this paper, we describe a rope tension automatic equalizer that automatically adjusts several ropetensions connecting the elevator car and the counterweight. The automatic rope tension equalizer is composedof a body, ram, and rope shaft. The body includes a cylinder hole, in which a ram is assembled. A ropeshaft is assembled in a hole in the ram. Moreover, the rope is fixed to the rope shaft, with a hole throughwhich fluid can pass between each cylinder hole and the hole of the body. The central concept is that theforce of each rope is evenly distributed by the hydraulic pressure between the ram and the body cylinderwhen the rope is pulled. The thickness of the jaw connecting the small and large diameters of the body ofthe rope tension automatic equalizer was 15 mm based on structural analysis. The results of the representativeexperiment to install the produced rope tension equalizer on the elevator revealed it was possible to reducethe rope tension deviation by more than 71 kg.