SU1753087A1 - Vehicle cushion device - Google Patents

Abstract

The invention relates to vehicle suspension springs and can be used on vehicles where the payload on the axle varies widely. A device for suspending a vehicle contains a spring 1 and a spring cushion 2, the ends of which are installed with gaps relative to the spring 1. Clearances between The spring and ends of the pads are made different in size Zi and Zz. The ends of podressornik 2, facing the spring 1, have different radii of curvature RI and On. When performing the spring plate 2, having the same radius of curvature along the entire length, a wedge-shaped insert is installed between spring 1 and spring 2, which allows it to withstand the gaps between the spring and the ends of the spring wheel of different magnitude Zi and 2.2. The device provides increased smoothness of the vehicle and uniform distribution of operating voltages. 2 hp f-ly, 3 ill.

Description

The invention relates to vehicle suspension systems and can be used on motor vehicles where the payload on the axle varies widely.

A device for suspension of a vehicle is known, comprising a spring, a spring mounted on a spring, with gaps 1.

It is also known a device for suspension of a vehicle, comprising a spring, a spring, the ends of which are installed with gaps relative to the spring 2

The disadvantages of these structures are insufficient smoothness of the course of vehicles, where the payload varies within wide limits, and an unregulated distribution of operating voltages at the ends of the springs.

The aim of the invention is to increase the smoothness of the vehicle and the uniform distribution of operating voltages.

This goal is achieved by the fact that in the known device for the cushioning of transport vehicles, the Teessoru and the treadmill, the ends of which are installed with gaps relative to the spring, the specified gaps are different.

i

The ends of the podsornik are described by various radii of curvature.

The device for the suspension of vehicles is equipped with a wedge-shaped insert installed between the spring and the suspension.

FIG. 1 shows a device for suspension of a vehicle; in fig. 2 - the same, with a wedge-shaped insert;

Xi

SL GJ O 00 H

Fig, 3 is a graph of the dependence of the deflection f on the load P applied to the device.

The device for the suspension of the vehicle contains a spring 1. podressornik 2, interacting with the spring 1 and fixed on the spring 1 with a strut bolt 3 and nut 4. The gaps between the spring and the ends of the podressornik are different in size Zi, T.ch. For the leading axle, the gap facing the front of the vehicle is smaller in size, and for the non-leading axle the gap facing the front of the vehicle is larger.

The ends of the podsusornik 2, facing the spring 1, have different radii of curvature RI and Ra (Fig. 1).

On the basis of the tests carried out to provide the required spring characteristics, the gaps of the front and rear ends, for the unloaded condition, were respectively 23 and 41 mm. These clearances are provided by selecting a radius of curvature for spring sheets of R 1600 mm and a selection of radii of curvature for the front end of the treadmill Ra 2900 mm and for the rear end of the torsion pad RI 8000 mm.

Fig. 2 shows a device for the suspension of a vehicle with a sprung assembly having the same curvature of the ends of the sprinting axle along its entire length. A wedge-shaped insert 5 is installed between the spring 1 and the spring plate 2, which allows it to withstand the gaps between the spring 1 and the ends of the spring 2 different no BeflH4HHeZi, 2%.

For the variant, when the radius of curvature of the sprout is the same along the length of the sprout and is 5000 mm, and the gaps are the same as in the first case: 23 mm and 41 mm, the wedge angle of the wedge insert was equal to 1 ° 40, and the wedge is directed narrowly side of the smallest gap for example

The springs of the leading rear axle are forward, in the direction of the movement of the car.

The device is operated by sequentially putting into operation and interacting the ends of podressornika 2 with the main spring 1, which affects the shape of the elastic characteristic of the device (Fig. 3), showing the dependence of the deflection f on the load P applied to the device.

At partial load P on the device (for example, when the car is loaded with two people), it corresponds to the pro-1 fi fi, while between the ends of podressornik 2 and the main spring 1 there will be gaps Zi and 2z, the rigidity of the device in this case in the section OA determined by the tangent of angle a 1.

In the case of dynamic deflection of the device, the ends of the spring plate 2 approach the main spring 1 and during the deflection h one end of the spring wheel 2 comes into contact with the spring 1 (Z2 0). In this case, in the section AB, the rigidity of the device is determined by the tangent of the angle a 2, when fa bends at

In the BV section, the rigidity of the device is determined by the tangent of the angle "3.

The proposed device improves the smoothness of the stroke and evenly distributes the operating voltages at the ends of the springs.

Claims (3)

Claim 1. Device for suspension of a vehicle, comprising a spring and a spring suspension, the ends of which are installed with gaps relative to the spring, characterized in that, in order to improve the smoothness of the vehicle and the uniform distribution of operating voltages, the gaps are different. 2. The device according to claim 1, which differs from the fact that the ends of the treadmill are described by different radii of curvature. 3. The device according to claim 1, of which there is a wedge-shaped insert installed between the spring and the sprung.  Fig 3