SU1368215A1 - Braking leverage of four-wheel rail bogie - Google Patents

Abstract

This invention relates to railway transport. The purpose of the invention is to simplify the design and increase reliability. Brake shoes 1 are pivotally fixed. At the ends of the brake beams, in the middle of which are pivotally fixed the levers 4, 5 of the power mechanisms. The small arms of the levers 4, 5 are interconnected by a spacer thrust 6, and the large arms are connected respectively to the dead point bracket and through the belts 8, 9c by the distribution lever 10. The power mechanisms are rotated 180 ° relative to each other. and are located in the plane of the axles of the hinged connection of the brake beams 3 with the shoes 1. 3 Il.

Description

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The invention relates to railway transport and can be used in the design of the brakes of multi-axle carriages.

The purpose of the invention is to simplify the design and increase reliability.

FIG. 1 shows a lever transmission of a four-axle railway carriage, side view; in fig. 2 is a view of A A in FIG. 1} in FIG. 3 is a view B in FIG. 2

The four-axle bogie brake linkage contains brake shoes 1 (figs, 1 and 2) with pads, by means of suspensions 2 mounted on sidewalls (not shown) of two-axle bogies and hinged in pairs on brake axle trunnions 3 (figs 2 and 3). The design uses the non-locking principle of suspending the shoes in the center of the body of the shoes Shoe with pads - brake beam. The brake beams of each biaxial bogie are equipped with 25 power mechanisms consisting of levers 4 and 5, fixed by a hinge with a vertical axis of rotation in the middle of the barrel 3, 3.

The small shoulders of these levers are connected to each other by a spacer thrust 6 Large ™ shoulder of the lever 4 through a link 7 connected to the dead point bracket. The large furnaces of the levers 5 are connected to the ends of the distribution lever 10 through the tines 8 and 9, in the center of which the undercar braking rod 11 is pivotally fixed. J and the plane of their symmetry coincides with the plane passing through the axis of the hinged attachment TopMd3HbK of the beams 3 with the shoes 1 (Fig. 3). To ensure the latter condition, the brake beams 3 are trough-shaped (Fig. 3).

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Lever gear works as follows.

When the brake cylinder is activated, the ha 11 moves to the center of the car and through the distributor lever 10, ti 8 and 9 actuates the two-axle bogie's power mechanisms, pushing the brake beams 3 apart and pressing the brake shoes 1 with the shoes to the wheels of the four-axle bogie. With the release of the brake, the Shoemacch P-pads leave the wheels under the action of their own weight and the weight of the lever gear elements associated with them.

Claims (1)

Invention Formula The brake linkage transmission of a four-axle railway carriage containing suspension brakes with brake shoes hinged at the ends of the brake beams placed in pairs between the axles of the extreme wheel pairs, the power mechanisms for each pair of brake beams, including two levers, each of which is hinged on the middle of the corresponding brake beam, with the small arms of the levers of each force mechanism being connected with each other by an expansion thrust, and the large arms, respectively, with the dead point bracket and through A distributing device with a distribution lever, which, in order to simplify the design and increase reliability, the power mechanisms are mutually rotated 180 along the longitudinal axis of the trolley and the E plane passing through the axles of hinged joints of brake beams with brakes , and the transfer device is made in the form of two tons of grams connected with the lever of the distribution lever. VidB W: fcg