SU1687697A1 - Device for screwing and unscrewing rail attachment nuts - Google Patents

Description

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Claims (1)

Claim A device for loosening and wrapping nuts of rail fastening, comprising a frame with wheel bearings connected to the vehicle, wrenches mounted on the frame with a device for their rotation and a mechanism for moving the keys relative to the frame along a closed path, characterized in that, in order to expand operational capabilities by ensuring the loosening and tightening of the nuts in case of uneven arrangement of sleepers, each key contains a housing, two vertical rods installed in a housing with axial movement in it and spring-loaded relative to it, at the lower ends of which the heads are installed, and on the upper - gears, horizontal consoles with rolling bearings at the ends and clamps fixed in the lower part of the body with the possibility of interaction with the rail head, and it is equipped with an installation mechanism keys on the nuts containing a two-arm lever, vertically mounted on the frame with the possibility of interaction with his lower shoulder and the sleeper, while his upper shoulder is spring-loaded relative to the frame and pivotally It is connected to one end of a rod of variable length, with the other end two spacers pivotally connected at one end, the top of which is pivotally connected to the frame with its other end and the lower one to the first shoulder of the additional lever with spaced branches, which is mounted horizontally on the frame, the end the second arm of which is concave for mounting the key consoles, and the key moving mechanism relative to the frame includes two rotors mounted at the ends of the frame to rotate in a vertical plane, in the first of the nests for the key consoles are made, a key for moving the keys mounted on the frame with an inclination towards the first rotor, a chain gear comprising a drive sprocket mounted on the axis of the wheel support, bypass sprockets mounted on the frame and covering the sprockets a pair of chains with mounted on it profiled elements for key consoles, the envelope of the second rotor with the possibility of placing between it and the rotor of the key consoles, and a cutter made in the form of a pair of angular levers mounted on the frame with their tops inami, one of the shoulders of which are spring-loaded relative to the frame with the possibility of interaction with their other shoulders with the key consoles located in the sockets of the first rotor, the device for rotating the keys contains gear racks mounted on the frame in the longitudinal direction with the possibility of interaction with the gears of the keys, and clamps, made in the form of skis installed along the frame with the possibility of contact with the rolling bearings of the keys fixed at the ends of their consoles. FIG. 4