SU1384999A1 - Bed for testing vehicles - Google Patents

Abstract

The invention relates to transport engineering and can be used for life tests of vehicles. The purpose of the invention is to improve the accuracy of reproduction of the operating loading conditions. The drive wheels 5 of the test vehicle 6 are covered with elastic bands 7, the free ends attached to the vehicle frame by means of elastic elements 6. Drive wheels 5 are mounted on movable platforms 4 associated with reciprocating drives. By tensioning the elastic tapes 7, the power circuit is immersed by the average torque. During the reciprocating movement of the support platforms 4, the torque oscillations are reproduced. 2 Il. (L 6 SA :) 00 4 with so with so

Description

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FIELD: transport engineering; it can be used for life tests of vehicles.

The purpose of the invention is to improve the accuracy of reproducing operating load races by applying disturbing torque fluctuations from the impact of road irregularities to the driving wheels of a vehicle.

FIG. 1 shows a stand, a general view, FIG. 2, an elastic band, a general view.

On the base 1 there are fixed supports 2 on which olor platforms 4 are installed by means of the rollers 3 for placing the driving wheels 5 of the test vehicle 6 on them. The driving wheels 5 are covered by elastic bands 7, on the inner surface of which there are stops 8 placed between the lugs on the driving wheels 5. The free ends of the elastic bands 7 are fixed by means of the elastic elements 9 on the vehicle frame 6. The output links 10 of the reciprocating drives are connected to the supporting ones pads 4.

Tensioning the free ends of the elastic bands 7 secured to the vehicle 6, the driving wheels 5 are twisted to a predetermined angle, loading the transmission and the engine of the vehicle with an average torque.

When the reciprocating drives are turned on, the support pads 4 will move reciprocally in the longitudinal direction, creating reciprocating and angular oscillations of the driving wheels 5, When

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In this case, torque oscillations occur in the power circuit of the transmission and the engine, which excite oscillations of the vehicle's body. Torque fluctuations in the power circuit of the transmission and the engine, and oscillations of the transport vehicle. the means are recorded by the measuring apparatus.

Thus, in the proposed stand, disturbing oscillations of torque occur during the process of moving the wheels through road irregularities, are transmitted by the test vehicle assembly from the side of the driving wheels, which improves the reproduction accuracy of the operating loading conditions.

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Claims (1)

Invention Formula A vehicle test bench, comprising a base, support legs fixed on the base, support platforms for accommodating the test vehicle air wheels mounted on the support posts with longitudinal movement, and reciprocating drives, characterized in that aim of reproducing the accuracy of the operating modes of loading by applying disturbing torque fluctuations from the influence of road irregularities to driving ECAM vehicle, it is provided with elastic ribbons, covering the driving wheels of the vehicle, wherein the free ends of the elastic bands are fixed by means of elastic elements on the frame of the vehicle, and drives the reciprocating movement are associated with the supporting platforms.