Railway switch changing construction method and railway switch track laying unit thereof

• Main Authors: WANG YANLI, MA LI, ZHOU HUIHUI, ZHANG TONGBAO, ZHANG JUN, GUO SHUANGQIAO, WAN HENGGUO, HUANG XIAOBO, FAN YOUHONG, ZHANG XIONGCHAO, ZHANG SHANGWEI, FANG JIN, SHU WEIHAO, SUN ZHIMIN, YIN GUIFANG, LIU ZHONGLING, SUN HUAPING, DONG PINGHUA, LIU XINHAN, HU JIN
• Format: Patent
• Language: Chinese; English
• Published: 01.05.2013
• Subjects: CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; FIXED CONSTRUCTIONS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS; PERMANENT WAY; PERMANENT-WAY TOOLS

The invention discloses a railway switch changing construction method and a railway switch track laying unit thereof. The track laying unit comprises a main machine, an auxiliary machine and a hydraulic reloading frame; the main machine comprises a main machine flat car, an arm, a front vertical column gantry structure, a rear vertical column gantry structure, a lifting trolley, a hoisting mechanism and a running mechanism; the auxiliary machine at least comprises an auxiliary machine flat car; and the hydraulic reloading frame comprises a first reloading frame, a second reloading frame and a reloading hanger. The railway switch track laying unit solves the problems that traditional manual laying or changing can easily cause permanent distortion of steel rails or fittings of switches or cause the laying accuracy not to meet the requirements, and speed-raising turnouts are required to be assembled in a factory block by block and integrally laid in the field, realizes mechanical switch changing and laying, incr