SU1182309A1 - Bed for vehicle testing - Google Patents

Abstract

VEHICLE TEST BENCH, containing, the base, front and rear running drums, hinged On the base for placing the front and rear wheels of the vehicle on them, a flexible element attached at one end to the vehicle frame and at the bottom, and a transmission, the input link of which is kinematically connected to one of the rear running drums, characterized in that, in order to reduce the complexity of servicing when testing vehicles in various modes, it is equipped on the support, fixed on the base, by the frame, balanced on the support, supporting rollers pivotally mounted on the frame with the possibility of contact with the front or rear wheels S of the vehicle, and in addition (by the transfer gear, the input link of which is kinematically connected to another rear drum, with the output link of each of the aforementioned gears kinematically connected with one of the thrust rollers. 13 u y 8 FIG.

Description

This invention relates to a transport machinery industry and may be. Used in testing vehicles, such as automobiles. The purpose of the invention is to reduce the labor intensity of service when testing vehicles in various modes. FIG. 1 shows a stand, side view; in fig. 2 - kinematic scheme of the stand. On the base 1, the front 2 and 3 and rear 4 and 5 running drums are hinged to accommodate the front 6 and rear 7 wheels of the vehicle: 8. One end of the flexible element (cable 9) is attached to the front part of the vehicle frame, the other the end of which is attached to a fixed rack 10 fixed on the base 1. On the last leg there is also a support stand 11 on which the frame 12 is balanced on the frame 12. On the frame 12, two stop rollers 13 and 14 are pivotally mounted. The stop roller 13 is kinematically connected to the output link 15 per cottages 16, the input link 17 of which is kinematically connected to the rear running drum 5. The thrust roller 14 is kinematically connected to the output link 18 of the transfer 19, the input link 20 of which is kinematically connected to the rear running drum 4. The thrust rollers-13 and 14 are located at a height allowing contact with the front wheels 6 and excluding the movement of the front wheels 6 through the stop rollers 13 and 14. The rear running drums 4 and 5 are equipped with brakes 21 and 22. For mounting the vehicle 8 on the running drums 2, 3, 4 and 5 include that mosaics 21 and 22, mash down the rear running drums 4 and 5. Next, the vehicle drives to the running drums 2-5 until the front wheels come into contact with the stop rollers 13 and 14. At the same time, the frame 12 is rotated by means of a balanced mounting on the fixed rack 11 that the thrust rollers 13 and 14 are evenly pressed against the front wheels 6 .. In this position, the rear wheels 7 are locked using vehicle B's braking system and the cable 9 is fixed to the front of the vehicle 8, fixing it against non-contour iruemogo setback. In this case, the axes of rotation of the front 6 and rear 7 wheels of the vehicle 8 are in the same vertical plane with the axes of rotation of the front 2 and 3 and rear 4 and 5 cross-country drums, or are somewhat shifted back. Then, the front 6 and rear 7 wheels of the vehicle 8 are disinhibited and the brakes 21 and 22 are turned off. Caught in an unstable equilibrium, the vehicle 8 is shifted back, pulling the cable 9. The front wheels 6 come out of contact with the stop rollers 13 and 14. In the running-in mode, the rear wheels 7 are driven by the engine of the vehicle 8. Under the action of tractive force on the rear wheels 7. The vehicle 8 moves forward until the front wheels 6 touch the stop rollers 13 and 14. As a result Inematic stand chain is closed. Rotation from the rear wheels 7 inter-. The rear running drums 4 and 5, the gears 16 and 19, the thrust rollers 13 and 14 and the front running drums 2 and 3 are transmitted to the front wheels 6, which rotate at the same angular speed and in the same direction as the rear wheels 7, which corresponds to the running-in mode. vehicle. After completing the tests of the vehicle 8 in the running-in mode, the operator switches the vehicle 8 to the free run or braking mode. At the same time, the running drums 2-5 continue to rotate under the action of the accumulated kinetic energy of the masses. As a result, the direction of the vortex acting on the front 6 and rear 7 wheels 1 is reversed and under the action of the vehicle 8 is shifted back, pulling the cable 9. In this case, the front wheels 6 come out of contact with the thrust rollers 13 and 14, kinematic the stand chain is automatically disconnected and each vehicle wheel rotates independently of each other, providing 11823094 measurements, parameters of movement of each wheel separately.

k

ha

/ 7

31

(

Р1Л2

Claims (1)

A VEHICLE TEST STAND, comprising, a base, front and rear running drums pivotally mounted on a base for placing front and rear wheels of a vehicle on them, a flexible member attached Figure 1 with one end to the skeleton of the vehicle, and the other to the base, and the transmission, the input link of which is kinematically connected to one of the rear running drums, characterized in that, in order to reduce the complexity of maintenance when testing vehicles in various modes, equipped with a support post fixed to the base, a frame, balancer mounted on the support post, thrust rollers pivotally mounted on the frame with the ability to contact with the front or rear wheels of the vehicle, and d optional transmission, the input link of which is kinematically connected to another rear. running drum, while the output link of each of the mentioned. The fourth gear is kinematically connected to one of the thrust rollers. SU „„ 1182309 1 1182309 2