SU1562732A1 - Arrangement for regulating toe-in angle of vehicle steerable wheels - Google Patents

Abstract

The invention relates to mechanical engineering and can be used in car assembly plants to adjust the angle of convergence of the controlled wheels of passenger cars directly on the assembly line prior to setting the wheels on the car. The purpose of the invention is to improve the accuracy of the device. The device comprises a base 1, a mechanism for loading the suspension of controlled wheels and a mechanism for measuring the angle. The loading mechanism is made in the form of pneumatic cylinders 3 installed on the base, on the rods 4 of which platforms 5 are installed, on which spring-loaded supports 7 are placed with ball-rollers 6 in contact with the hubs of adjustable wheels. The angle measurement mechanism is made in the form of a frame 9 with lugs 10 fixed on its upper part, contacting, for example, a wheel brake disk. The lower part of the frame 9 is provided with a hinge with a vertical axis of rotation, with the hinge placed in a rack 8 mounted on the base and spring-loaded with respect to the latter. On the rack 8 mounted indicator in contact with the frame. The device is mounted on the cross member of the car, and when the angle measuring mechanism is in contact with the brake disc, convergence of the controlled wheels of the car is measured. 3 il.

Description

The invention relates to mechanical engineering and can be used in car assembly plants for adjusting the angle of convergence of controlled wheels, mainly passenger cars, directly on the assembly conveyor prior to placing the wheels on the car.

The aim of the invention is to improve the accuracy of the device.

Figure 1 shows the proposed device mounted on the front suspension of the car below, the section; FIG. 2 is a view A of FIG. 1; on fig.Z-, section bb in figure 2.

The device for adjusting the convergence angle of the driven wheels of the car contains a base 1 with grippers 2, two pneumatic cylinders 3, on the rods 4 of which platforms 5 are installed, ball rollers 6 of longitudinal and lateral movement and support 7. On the base 1 of the legs 8 are hingedly mounted articulated frames 9} on the upper part of which two stops 10 each are in contact with the brake discs of the car. On the rack 8 there is an indicator 11, which contacts the measuring rod with the stops 12 of the frame 9

The device works as follows.

The device is mounted on a vehicle, such as a Zhiguli suspended on an assembly line, and secured to the base holes 13 in the crossbar 14 of the front suspension of the vehicle using grippers 2, for secure locking locking pins 15. Further

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the pneumatic cylinders 3 are turned on, the rods 4 are lifted up to the stop, the fork 16 grips the front wheel hub 17 and lifts it, compressing the spring of the front suspension of the car 18 to a static position identical to that of a car loaded with a regulated load.

When lifting the hub 17, the supports 7, due to the ball rollers 6, can move in a horizontal plane. At the end of the upward stroke, the stops 10 are pressed against the brake disk 19 of the car, for example, by a spring 20, and since the frame 9 is mounted on a hinge with a vertical axis 21, the frame 9 is rotated so that both stops 10 are pressed against the brake disk 19 of the car. The angle of rotation of the frame 9, and hence the brake disc 19 is fixed by the indicator 11.

By adjusting the length of the steering rod of the vehicle (not shown), the hub 17 is turned to a zero indicator reading, which is an indication of a correctly set angle of convergence. When adjusting, the hub 17 can be easily displaced in the horizontal plane due to the ball rollers 6 and rotated thanks to the thrust ball bearing 22. The indicator 11 is adjusted to zero with a special caliber, imitating the ideal car in terms of measured parameters.

Next, the pneumatic cylinders 3 lower the platform 5 to its original position. Spring 23 returns support 7 to its original position. Next, remove the locking pins 15, open the grippers

2 and the device is transferred to the next vehicle. The device can be mounted on a balancing device (not shown) to compensate for its weight and facilitate transportation. When placing the device on the vehicle, frame 9 is retracted from the brake disc 19 by a retraction mechanism, for example, a lever or an additional pneumatic cylinder (not shown).

Claims (1)

Invention Formula A device for adjusting the angle of convergence of the driven wheels of a car, having a cylindrical surface of a part mounted on the controlled wheels, comprising a base with a loading mechanism kinematically connected with the suspension of the controlled wheels, and a mechanism for measuring the angle of convergence different from that the purpose of improving the accuracy of the device, it is equipped with 0 0 with fastening to the cross of the car, on which the loading mechanism is mounted, made in the form of pneumatic scaffolds mounted on the base, on the rods of which are fixed platforms with spring-loaded supports mounted on them through the rollers mounted with the possibility of contacting the hubs steering wheels, and the mechanism for measuring the angle of convergence is made in the form of a frame with stops mounted on its upper part, installed to interact with the end surface of a rotating cylinder symmetric with parts mounted on the trunnion and the lower part of the frame is mounted on a vertical hinge installed in a rack kinematically associated with the base by means of a horizontal hinge, the spring-loaded rack is made with respect to a base and mounted thereon Indie locator 5 for engagement with the frame. five Type A FIG. 2 6-6 but eleven Fig.Z