SU33568A1 - Rail pedal - Google Patents

Description

The proposed rail pedal is of a known type of pedals acting from a deflection of a track rail and consisting of a pivoted lever coupled to the latter, perpendicular to the axis of the track and acting on the contact system. The invention consists in the specific form of the implementation of such a pedal, which makes it possible to achieve, by itself, known in the rail pedals, preventing the contact lever of the pedal to break when excessive rail oscillations exceed normal voltages.

In FIG. 1 shows a pedal view from the top with the cover removed; FIG. 2 is a longitudinal section of the box enclosing the contact system, with a side view of the lever controlling the latter; FIG. 3 - a section with a side view of the lever of the contact system; FIG. 4 is a side view of the pedal assembled, and FIG. 5 is a view of the rail c6 side of the path.

The device pedal is as follows. On the side of the track rail on fixed supports there is a tightly closed box 7, in the walls of which axes 2 and 8 are loosely fixed. At the end of the axle 2 coming out of the box is worn and tightly fixed on it is the end of the double arm 5, the other end of which is without igr1, placed in the window, cut down

{167) In the body of the lining, bolted to the rail, as shown in the drawing, or freely captures the unfolded end of the rail bottom. Inside the box, axis 2 is enclosed by the arcuate ends of two iron strips 5 and 6, fastened together with a bolt with a strong spring 7 under the nut; by tightening this bolt, one can adjust a greater or lesser degree of clamping of axis 2 between lanes 5. and b, which form the second arm of the said two-arm lever; Both arms of this lever are interconnected by friction existing between axis 2 and arcs at the ends of the strips 5 to 6. On the other axis 5 there is a lever 9 fitted with a notch in which the curved end enters, strips 5. At the end of the lever, an insulated contact plate is fixed serving to close the contact plates JO and // to which the respective wires are connected. The oscillations of the lever 9 are limited by the pins / 2, which are arranged so as to allow such a swing of the lever 9, which is obtained as a result of the usual normal oscillations of the rail under the train.

The device works as follows. During the passage of the pr, driving each point of the rail makes swinging up and down: down - when running on

her wheels and up-pass-wheels. These movements of the rail are perceived by the lever 5 and transmitted to axis 2 and strip 5, which at its end pushes step 9, causing closure or opening of the contact plates W and T1. If the rail goes down more than usual, then after the lever 9 stops in the top pin (2), lane 5 also stops, and further lowering of arm 3 is accompanied by rotation of axis 2 at its pinching ends of strips 5 and 6, overcoming the existing friction between them. The reverse movement of the shoulder 3 and axis 2 causes: for the first moment, the lowering of the lane 5 and the lever 9.

Such a device allows the pedals to respond to all rail oscillations occurring during the train’s passage, automatically adapting to all stable rail level changes that may result from shrinkage of sleepers on the ballast or due to depth. Spontaneous contact closure does not occur.

This is because the lowering of the rail level occurs exclusively under the pressure of the wheels of the train and, moreover, is always accompanied by the opening of contacts. When the depths occur, the rail raises and at the same time the arm 3 of the lever also rises, and the levers P and 5 remain in place and only the axis 2 turns at a certain angle; contact closure is also not happening.

The subject matter of the invention.

A rail pedal acting from a rail bend and consisting of a two-arm lever, one arm of which is attached to the rail and the other controlling the contact system, characterized in that the lever arm controlling the contact system is frictionally coupled to the axis 2 of the lever for that purpose so that when the rail deviates excessively, it rotates on axis 2 and thereby prevents breakage of the contact arm of the lever.