RU50500U1 - TROLLEY OF PASSENGER CAR - Google Patents

Abstract

The utility model relates to railway transport, namely, to trolleys of passenger cars. The essence of the utility model consists in that the axle box suspension of the trolley is equipped with a device consisting of a bracket, in which one end is hinged to a lever resting on the axle box and pivotally connected to the side beam of the trolley, and the second is made with holes for bolting to the lever .

Description

The utility model relates to railway transport, namely, to trolleys of passenger cars.

In the CIS countries, passenger cars are mainly equipped with two-axle bogies with a two-stage spring suspension system. Typical for modern wagons, the KVZ-TsNII cart (“Design and calculation of wagons” edited by V.V. Lukin UMK MPS of Russia, 2000. 731 p.), Developed by the Kalininsky (now Tver) car building plant in conjunction with the TsNII MPS (now VNIIZhT - All-Russian Research Institute of Railway Transport). Created on the basis of the KVZ-5 trolley of the USSR, it differs in the way the passenger carriage body is supported on the side bearings (not on Friday, as was customary in previously designed carriage designs).

In addition, in the KVZ-TsNII trolley, the static deflection of spring suspension was increased to 190 mm, which in the end managed to get the speed of the car to 160 km / h while ensuring the necessary smoothness.

The support of the body on the trolley consists of the side bearings of the body and the trolley interacting with each other. The transition to a gauge of a different width is carried out by the method of changing bogies, which can be attributed to the disadvantages of the analogue.

The prototype of the invention is a trolley designed by Francorail-MTE and Franco-Beige Y32 (Design and Calculation of Wagons, edited by V.V. Lukin, UMK MPS of Russia, 2000. 731 pp.). The Y32 base trolley is designed for speeds of up to 160 km / h. Its modification Y32E, designed for high-speed movement of 200 km / h and above, is additionally equipped with a magnetic rail brake and devices for damping wobble wobble.

The frame of the trolley consists of two side beams curved in the middle of the frame, interconnected by two transverse beams

tubular section. In the middle part of the side beams there are nests with a diameter of 440 mm for installing coil springs of central suspension. The transverse beams are interconnected along the central longitudinal axis of the trolley with a short longitudinal beam. This beam is intended for fastening two cables serving to transmit longitudinal forces between the car body and the trolley; the cables at one end are rigidly attached to the frame of the carriage, and at the other, through elastic ties, are connected to the brackets of the car body.

The springs of the central suspension are supported by recesses in the side beams and covered with a nadressor beam. The nadressornoj beam is connected to the side beams by hydraulic vibration dampers.

The load from the car body is transferred to the central suspension springs through a nadressornoy beam, which carries the vibration damping fasteners, transverse stops brackets. The nadressornoj beam enters the carriage frame and cannot turn relative to it; between the nadressornoj beam and the body, in the places of their contacts are installed rubber supports with a thickness of 52 mm, which are used for sound insulation.

In parallel with axle box springs, hydraulic vibration dampers are installed, which reduce the galloping amplitude of the bogies and reduce the level of acceleration in the car body.

The secondary suspension of the trolley is made of single-row cylindrical springs, which, in addition to vertical suspension, also provide lateral suspension of the body and the rotation of the trolley in curves. The damping of vibrations of the car body is carried out by installing on each carriage two vertical and one horizontal vibration dampers. The decrease in the amplitudes of oscillations of the side rolling of the car body is achieved with the help of stabilizers of side rolling of the torsion type.

The Y32 trolley is equipped with disc, brake and magnetic rail brakes - the latter for speeds exceeding 160 km / h.

The axle box suspension of the trolley is equipped with a device designed to replace wheel pairs, consisting of a bracket having holes for bolting to the lever, at which one end rests on the axle box and the other is pivotally connected to the side beam.

To replace the wheel pairs, it is necessary to unscrew the nuts of the bolted joints, remove the brackets, with a lifting mechanism

raise the trolley, roll out the wheelset. Installing a new wheelset is done in the reverse order.

The disadvantages of the analogue include the fact that for the dismantling of wheelsets it is necessary to dismantle a large number of bolted joints while the brackets are removed completely, which requires additional time for their installation.

The purpose of the utility model is to provide quick replacement of wheelsets, improving the conditions of maintenance and repair.

This goal is achieved by the fact that the trolley is equipped with special devices for quick replacement of wheelsets.

The essence of the utility model consists in that the axle box suspension of the trolley is equipped with a device consisting of a bracket, in which one end is hinged to a lever resting on the axle box and pivotally connected to the side beam of the trolley, and the second is made with holes for bolting to the lever .

The technical result achieved by the utility model is to reduce the time and cost of replacing wheelsets when switching to a gauge of a different width.

The essence of the utility model is illustrated by drawings, where:

figure 1 - shows a General view of the trolley of a passenger car;

figure 2 - axle box suspension carriage of a passenger car;

figure 3 - trolley raised by a lifting mechanism for changing wheelsets.

Trolley 1 includes wheelsets with axle boxes 2 (Fig. 1), on which a frame 3 is equipped, equipped at the ends with vibration dampers 4. The frame 3 consists of two side beams 5 curved in the middle of the unit and connected by two transverse beams 6 of tubular section . The truck 1 is equipped with four cylindrical springs 7 of the central suspension, resting on the recesses in the side beams 5 and covered from above by a sprung beam 8 with an opening for the passage of a pivot assembly connected to the side beams 5 with hydraulic vibration dampers 9.

The axle suspension of the trolley is equipped with a device designed to replace wheel pairs, consisting of a bracket 10 (Fig. 2) in which one end is secured by a hinge 11 to a lever 12, which is supported by an axle box 13 and pivotally connected to the side beams 5, and the second is made with holes for bolt connection 14 with the lever 12.

To quickly replace the wheel pairs 2, it is necessary to open the bracket 10 by unscrewing the nuts 15 of the bolted joints 14, by lifting gear 16 (Fig. 3), raise the trolley and roll out the wheel pairs. Installing a new pair of wheels in the reverse order.

According to this technical solution, JSC KVZZ plans to produce prototypes of passenger carriage trolleys.

Claims (1)

A carriage of a passenger carriage, including wheel pairs with axle boxes, on which a frame is equipped, equipped with vibration absorbers at the ends, consisting of two side beams curved in the middle of the side and connected by two cross-section beams of tubular section with cylindrical springs of central suspension, resting on recesses in side beams and a top-mounted beam covered from above connected to the side beams with hydraulic dampers, characterized in that the axle suspension of the trolley is equipped with but the device consisting of a bracket which has one end fixed by a pivot to the lever rests on the journal box and is pivotally connected to the truck side frame and the second is formed with holes for bolted connection to the lever.