SU1351822A1 - Arrangement for transmitting longitudinal forces between vehicle body and bogie - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to railway transport and relates to the construction of power lines of a body and a truck. The goal is to increase the durability of the frames of the carts and reduce wear on the tires. The device contains cables 3-6, placed along the sidewalls 7 of the trolley frame and connected at one end to the brackets 8, 9 of the pivot girder of the Yu truck rigidly, and at the other end through tension ro / g faces 11-14 with shock absorbers 15- 18, mounted on the body, with a trolley hinged. The cart has the central and box suspension. The supports cooperate with side bearings 26 on the pivot beam 10 of the trolley. When the vehicle is moving, the undercarriage is waggled under the body, the pivot beam and the body turn relative to the bogie frame. The torque M is transmitted to the bogie frame through the cables 3, 4. When the Mg value reaches the friction torque value — in the sidewalls, the relative displacement of the pivot beam and the bogie frame stops, the body moves relative to the pivot girth along the side pins under the action of the constant moment M. The value of the maximum force T does not depend on further displacements of the body and carts. In the modes of moving and braking, cables 3, 5 or 4, 6 work simultaneously. 2 Il. I SO ate fffufZ

Description

FIELD OF THE INVENTION The invention relates to railway transport and concerns the construction of power links between a body and a vehicle trolley.

The purpose of the invention is to increase the durability of the frames of the carts and reduce wear on the tires.

Fig. 1 shows a device, a view of the distance between the side bearings 26 and

from the side; in fig. 2 - the same, with the application of the scheme of horizontal forces acting on the frame of the carts, top view.

In addition, in FIG. 2 marked:

F is the guiding force acting on the oncoming wheel pair;

P (, is the adhesion force between the wheel and the rail;

P them is the transverse inertial force of the trolley frame;

T is longitudinal force; M - the moment created by the longitudinal force;

O - turn pole; o /./ о - the angles formed by the radius-vectors drawn from the turn pole to the points of contact of the wheel with the rail, and the longitudinal axis of the cart.

The device for transmitting longitudinal forces between the body and the vehicle trolley from the wheel pairs 1 and the body 2 is made in the form of cables 3-6, placed along the sidewalls 7 of the truck frame. Each cable is rigidly connected at one end to a console of 8 or 9 pivot beams 10 of the trolley. The second ends of the cables are flexed by a tension roller 11-14 mounted on spring shock absorbers 15-18 rigidly mounted on the body 2 and secured by means of hinges 19-22 on the sidewalls 7 of the trolley frame.

The cart has a central 23 and bsov 24 spring suspension, the side supports 25 of the body interact with side bearings 26 on the pivot beam 10 of the cart.

 The device works as follows.

When the vehicle is moving along the straight track section, when the cart makes a forcing movement under the body 2, the pivot beam 10, together with the body, due to the horizontal elasticity of the suspension 23, rotates relative to the frame of the cart. The generated torque M Y is transmitted to the sides of the bogie 7 through cables.

4, 5. When the direction of force F changes in direction F, torque M also changes sign and is transmitted from the consoles 8, 9 of the pivot beam 10 to the bogie frame via cables 3, 6.

The magnitude of the maximum transmitted longitudinal forces T and moment M depends only on the strength of the friction and

F o rm y

with the supports 25. As soon as the value reaches the value of the moment of friction in the side bearings, the relative displacement of the pivot beam 10 and the trolley frame ceases, and the body 2 begins to move relative to the pivot beam 10 along bearing 26 under the action of constant moment M. The maximum value

The longitudinal forces T do not depend on further relative positions of the body and the bogie. The weakening of the cables is compensated by spring-loaded shock absorbers 15-18.

In curved track sections, the longitudinal force transfer pattern is similar, the magnitude and preferred direction of the force changes.

In the modes of moving and braking

3, 5 or 4, 6 cables work at the same time. At the same time, there is no rotation of the trolley and My is 0.

Thanks to the rational choice of the coefficient of friction in skrunah 26

and the distance between them, the turn of the pole O can be brought closer to the oncoming wheel pair and thereby significantly reduce the frame force, to equalize the loading of both wheel pairs.

Since the transverse rigidity of the cables is small, the horizontal loading of the bogie frame from the inertial forces of the body is reduced.

and acquisitions

45 F o rm y

A device for transmitting longitudinal forces between the body and the vehicle trolley, containing cable rollers located on both sides of the longitudinal plane of symmetry of the vehicle, one ends of which are attached to the bogie elements, and the other 55 on the pivot device of the vehicle, that, in order to increase the durability of the frames of the carriages and reduce wear on the tires, one ends

the cables are fixed on the trolley rigidly, the rollers are mounted on the body and

spring-loaded, and the other ends of the cables attached to the pivot girder trolley.

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Editor M. Bandura

Compiled by S. Romanov

Tehred M. Khodanych Proofreader O. Kravtsova

Order 5529/15 Circulation 456 Subscription

VNIIGSh of the USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

Claims (1)

Claim A device for transmitting longitudinal forces between the vehicle body and the carriage, comprising cables covering the rollers located on both sides of the longitudinal plane of symmetry of the vehicle, some ends of which are fixed on the elements of the carriage, and others on the pivot device of the vehicle, characterized in that, with In order to increase the durability of the frames of the trolleys and reduce the wear of the bandages, some ends of the cables are fixed on the trolley, the rollers are mounted on the body and spring-loaded, and the other ends of the cables are closed captives on the pivot beam of the cart. figs!