Abstract：Research purposes ： Aiming at the problems that the traditional track laying machine with single tie continuous process needs the high cost， has the high failure rate and the track tie is subjected to damage due to impact， a new CYP 500 cluster tie type long rail track - laying machine unit is developed and manufactured in China with the self intellectual property right ，and as the core technology，the operation mode of 11 arranging the sleeper in cluster and laying the track in step" is adopted to this machine unit， with the features of the excellent performance， simple operating procedure，convenient maintenance and use and low cost. This machine unit can meet the requirements of laying ballast and ballastless tracks with 500 m long rail.
Research conclusions: (1) This track - laying machine unit integrates the long - rail track laying and the tie arranging， and is mainly composed of the long rail tractor，the host and auxiliary machines，tie carrying car， rail /tie transportation train， power system， hydraulic system， electric control system and brake system. (2) The operation mode of the host machine is designed as the " arranging the tie in cluster and laying the track in step" by using the innovative mechanism of the laying the tie evenly and sleeper arranging machine， and by using this method， the problems of high failure rate and the tie damage caused by the impact can be solved and the costs of the machine manufacture， operation and maintenance can be much cut. (3) The modularization design and manufacture are adopted to this machine unit，resulting in convenient and flexible assembly， disassembly and transferring to other site. (4) This machine machine is made in Chins with adopting the existing mature technology for long rail track laying， computer control technology and the mechatronics technology， so that the convenient use and maintenance can be achieved. (5) This research results is available for laying the ballast and ballastless tracks with the 500 m long rail or below.
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2013, Vol. 30 
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