TAMPING WORK VEHICLE, TAMPING DEVICE AND GROUND LEVELING METHOD

摘要

PROBLEM TO BE SOLVED: To improve deteriorated working environment for workers due to influence of noise and exhaust gas of an engine in the case where a tamping machine is used in the bottom of a narrow trench excavated in the ground. ;SOLUTION: The self-propelled working vehicle 1 of a tamping work vehicle A is provided with crawlers 10, and a lift 2 is provided on a frame 11. A lift guide body 21 lifted by hydraulic cylinders is inserted in the guide column 20 of the lift 2. A lift pedestal 24 is liftably inserted in the lift guide body 21. An arm device 3 is attached to the lift pedestal 24. The arm device is provided with a base arm 31 horizontally rotated by the hydraulic cylinder S2 and a lift rotation arm 32 vertically rotated by the hydraulic cylinder S3. A tamping device 4 is attached to the lift rotation arm 32. The tamping device 4 has a mounting plate 44 rotated and adjusted by a mounting member 44 and a hydraulic motor 41, and a tamping machine 48 is provided on both the ends of the mounting plate 44.;COPYRIGHT: (C)1998,JPO