SU1767058A1 - Apparatus for withdrawal of a sleeper from railway - Google Patents

Abstract

Use: in road machines to remove the sleepers from the path. The invention: the gripping mechanism is made in the form of a frame 4, equipped with clamping wedges 7, made in the form of eccentrics, the wedge 7 is mounted on the frame hingedly, symmetrically to the longitudinal axis of the cross ties. 3 il.

Description

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This invention relates to railway track repair devices and relates to devices for removing sleepers from a railway track.

The purpose of the invention is to increase efficiency.

FIG. 1 shows a device for changing sleepers; on FIP2 gripping mechanism top view; in FIG. 3, view A in FIG. 2. A device for removing sleepers from a railroad track comprises a telescopic boom 2 mounted on platform 1 with a carrier bar 3, the end of which is hinged and movably in a vertical plane associated with a gripping mechanism.

The gripping mechanism consists of a frame 4 with a vibrator 5 and an actuator 6 fixed on it. ,

On the frame are symmetrically mounted springs 10, interacting with the lateral sides of the clamping wedges 7. The device operates with the help of hydraulic cylinders.

The device works as follows

After stopping the vehicle over the sleeper to be replaced, when the hydraulic cylinders are turned on, the telescopic boom 2 extends and the carrying rod 3 with the gripping mechanism lowers onto the end portion of the sleeper, then the vibrator drive 6 is turned on. When the vibrator moves in the working direction (Fig. 3, Px), the frame 4 moves the clamping wedges 7, the working edges of which at this moment will be propped on the sleeper 9.

In this case, the clamping wedges tend to rotate relative to their edges, which are pressed into the sleeper. Since the length of the working part of each clamping wedge is more

the distance from the axis of rotation of the hinges 8 to the side surface of the sleepers 9, the force of the normal pressure between the edge and the surface of the sleepers will sharply increase, hence the force of friction will increase accordingly, which will lead to jamming of the frame 4 of the gripper with the sleepers. The directional actions of the frame caused by the operation of the vibrator are transmitted to the sleeper, with the result that

it moves with the vibrator.

When the vibrator moves in the opposite direction, the clamping wedges tend to rotate relative to their hinges on the frame of the gripping mechanism, and the force of the normal pressure between the edge of the clamping wedge and the sleeper depresses the spring, causing the friction force to decrease dramatically. In this case, the edges of the clamping wedges will slide along the tie, which is due to the force

friction of the sole of the ground lags behind the vibrator (idling, fig.Z, Xx). Repeated return movement of the vibrator moves the sleeper in one direction. To change the direction of movement of the sleeper, the gripping mechanism with a vibrator is rotated 180 °, i.e. is set by the angles of attack of the clamping wedges in the opposite direction.

Claims (1)

Invention Formula A device for removing sleepers from a railroad track, comprising a telescopic boom mounted on a platform carrying a rod and a gripping mechanism mounted on the shaft of the ramp with a possibility of being moved in a vertical plane by a drive, characterized in that the gripping mechanism is formed mounted on frame and disposable symmetrically with respect to the sleepers by horizontal vibrators, to which clamping wedges are pivotally connected with the possibility of rotation in the horizontal plane for interacting with the side surfaces of the sleepers, which are spring-loaded relative to the frame and made with an eccentric working surface. WITH FIG. 2 Editor E.Savina Compiled by V. Kleimenov Tehred M.MorgentalKorrektor N.Slobod nickname 3 four