RAIL REPLACEMENT HYDRAULIC DEVICE Russian patent published in 2014 - IPC E01B29/05 

FIELD: construction.

SUBSTANCE: invention relates to devices for mechanization of trackworks, namely, it is intended for replacement of railed laid on the track and mutually compressed as a result of temperature compression tensions in rail strings. The hydraulic device for rail replacement comprises stationary (1) and mobile (2) frames, which by means of hydraulic rail grippers are fixed to mutually conjugate ends of rails laid in the track. The frames (1, 2) are hingedly connected to each other by levers (11, 12) and power hydraulic cylinder (10) connected to the manual hydraulic pump (16). The levers (11, 12) are installed at an angle with reference to motionless (1) and mobile (2) frames, the hydraulic cylinder (10) opposes them. At pressurising the hydraulic cylinder (10) due to hinged connection the mobile frame (2) is displaced with reference to the stationary frame (1), simultaneously the junction is accelerated with lateral shift of the end of an extracted rail with reference to the fixed rail with its consequent removal from nipped position.

EFFECT: improvement of safety and increase of level of mechanisation of rail replacement trackworks.

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