SU1548088A1 - Vehicle body height control valve - Google Patents

Abstract

This invention relates to vehicles with an adjustable body position. In order to improve the accuracy of adjusting the position of the body, two axial parallel channels 2, 11 are made in the housing 1 of the controller, in which plungers 3, 12 are installed, which cooperate with separation valves 5, 13, which open air access to the pneumatic elastic suspension elements of the respective vehicle bead. Installing the seat 14 of the valve 13 in the cup 15 mounted in the housing 1 on the thread, allows you to adjust the time of simultaneous intake of air into the pneumatic elastic elements of both sides, which leads to an increase in the accuracy of the controller and its reliability. 1 il.

Description

The invention relates to the field of transport engineering, and in particular to vehicles with body position control.

The aim of the invention is to improve the accuracy of regulation of the position of the vehicle body and reliability.

The drawing shows a vehicle body position adjuster, section.

The body position regulator comprises a housing 1, in the longitudinal channel 2 of which a distribution mechanism is installed, which includes a plunger 3 with an axial channel, spring-loaded in the direction of the pusher 4 and interacting with the separation valve 5, which divides the channel 2 into the under-valve 6 and under-valve 7 cavities, while nadklapanny cavity 6 through valves 8 and 9 and the channel 10 is in communication with a source of compressed air.

In the housing 1, parallel to the channel 2, a channel 11 is made, in which a plunger 12 is installed, also spring-loaded towards the pusher 4 and interacting with the isolation valve 13, the seat 14 of which is made at the base of the adjustment cup 15.

The adjusting cup 15 is mounted in the housing 1 on the thread coaxially with the channel 11 and is a device for axial movement of the seat 14 of the valve 13. On the side surface of the cup 15 an annular groove 16 is made, connected by radial holes 17 with the inner cavity of the cup. The valve 13 is installed inside the glass 15.

The valve 13 divides the channel 11 into the supravalvular 18 and the subvalvular 19 of the cavity. The valvular cavities 6 and 18 are interconnected by a channel 20.

The subvalvular cavity 7 is connected by channel 21 to the pneumatic elastic suspension element of one side, and cavity 19 by channel 22 to the pneumatic elastic suspension element of the other side of the vehicle.

In the lower part of the housing 1, a communication mechanism of the pusher 4 with the axis of the wheels of the vehicle (not shown) is installed.

The synchronization of the control mechanism of the regulator is achieved by lowering or raising the saddle 14 of the separation valve 13 when screwing or unscrewing the adjusting glass 15.

The position controller of the vehicle body operates as follows.

When the body is in a neutral position, the dividing valves 5, 13 and valve 8, as well as the axial channels of the plungers 3 and 12, are closed. Pneumatic elastic elements of the opposite sides of the vehicle are disconnected from each other.

With an increase in the vertical load on the vehicle’s suspension, the pusher 4 moves upward by means of a communication mechanism with the vehicle’s wheel axis, raising the plungers 3 and 12. The separation valves 5 and 13 open, passing air from the over-valve cavities 6 and 18 into the under-valve cavities 7 and 19 and on through channels 21 and 22 into the elastic elements.

With a large vertical deformation of the pneumatic elastic element, the plungers 3 and 12 move upward more, through the valve stem 5, the inlet valve 8 opens.

As air enters the elastic elements, the body returns to the neutral position. The plungers 3 and 12 under the action of the springs after the pusher 4 are lowered, the valves 8 and 5 are closed.

With a decrease in the vertical load on the suspension, the pusher 4 is moved downward by means of a communication mechanism with the axle of the wheels. The plungers 3 and 12 under the action of the springs also fall down, opening the axial channels and connecting the sub-valve cavities 7 and 19 with the atmosphere. As the air flows out of the elastic elements, the body returns to the neutral position. The pusher 4, moving up, raises the plungers 3 and 12 to contact with the separation valves 4 and 13.

By adjusting the synchronization of the operation of the distribution mechanisms in the absence of the influence of the adjustment device of one distribution mechanism on another, an increase in the accuracy of regulation of the position of the vehicle body and an increase in the reliability of the body position controller are achieved. The use of the proposed body position regulator in the pneumatic suspension of any axis also eliminates the flow of air between the elastic elements located on opposite sides, which provides improved lateral stabilization of the vehicle body.

Claims (1)

Claim A vehicle body position regulator comprising a housing with two parallel channels, in which two distribution mechanisms are installed with dividing valves and spring-loaded plungers having axial channels and interacting on one side with dividing valves and the other resting on a common pusher associated with the vehicle wheel axle , characterized in that, in order to improve the accuracy of regulation of the position of the vehicle body and reliability, it is equipped with a device for the seat of one of the dividing valves, made in the form of an adjustment cup mounted coaxially with one of the channels in the housing and moved along the thread 5, an annular groove and radial holes are made on the side surface of the cup connecting the groove with the cup’s internal cavity in the cup base the seat of the separation valve is made, and the separation valve is installed in the adjustment cup.