Stop Fall Device가 부착된 도르래식 장력조정장치 개발

초록

In Korea, the individual tensile strength control method (pulley type and tensile ratio of 1:5), which makes it possible to apply the tensile load to trolley wire and messenger wire individually, is used in order to increase the tensile strength of the high-speed railroad line. The tensile load of the trolley wire should be maintained within a certain of range even under the temperature change, because the change of the tensile load of the trolley wire will affect the quality of the current collection on the pantograph. Therefore, the authors have developed the pulley-type tensile load control device with stop fall device, which enables to check the spacing of pulleys within a proper range and to prevent line drop due to the damage on the wire, so that the change of the tensile load of X-axis direction (line side) of the trolley wire by temperature change can be controlled and well maintained.