| 摘要 |
A universal mobile track leveling, lining and tamping machine useful for work in track switches and tangent track comprises four ballast tamping units mounted between the undercarriages of the machine and immediately preceding the rear undercarriage in the operating direction. The ballast tamping units are mounted for independent transverse and vertical adjustment with respect to the machine frame, a respective one of the ballast tamping units being arranged at the gage side and the field side of each rail, and each ballast tamping unit comprising a pair of vibratory tamping tools reciprocable in the direction of the track and immersible in the ballast with a respective one of the ties positioned between the tamping tools. Each unit is independently vertically adjustable on an independent vertical guide and independently transversely adjustable on at least one transverse guide. Independent power drives are connected to each ballast tamping unit for independently vertically and transversely adjusting each unit along a respective one of the vertical guides and the transverse guide. A track leveling and lining unit is mounted on the machine between the two undercarriages and immediately preceding the ballast tamping units in the operating direction, the track leveling and lining unit comprises power-driven, transversely and vertically adjustable lifting hooks and flanged lining rollers, and a leveling and lining reference system controls the track leveling and lining unit operation. |
