CS229366B1 - Chassis-vehicle coupling device - Google Patents

Abstract

Preventing the trailer from deviating from the roadway due to impact is ensured by the connected hydraulic motor and the throttle valve between the chassis and the vehicle bumper.

Description

BACKGROUND OF THE INVENTION The present invention relates to a device for coupling a bogie to a vehicle headboard of two or more axle trailers having a steerable bogie with a vehicle head rotatably connected by a fifth wheel.

A known device for coupling the chassis to the vehicle's veneer is a fifth wheel which is fixedly attached to the chassis frame and the second pivoting part is fixed to the veneer.

When transporting loads on vehicles with this known device for coupling the undercarriage to the elbow, a sudden deviation from the track occurs due to loss of adhesion due to, for example, asymmetrical braking or a one-sided impact on the vehicle wheels. This deviation permits free rotation of the carriage associated with the fifth wheel coupling.

This drawback removes the device for coupling the chassis to the vehicle chassis of two and more axles of trailers, in particular for long haulage, which have the chassis and the chassis rotatably connected by a fifth wheel _, characterized in that the chassis and chassis are interconnected by the flow of liquid is limited by a throttle with pressure drop regulation.

An advantage of the circuitry according to the invention is that the maximum speed of the chassis relative to the elbow required for cornering turns is set up on the throttle valve and each increase thereof is limited by the hydraulic motor and the throttle valve, thereby catching impacts on the chassis of the vehicle. driving tracks.

AND

229 3M

An exemplary embodiment of the invention is illustrated in the drawing, wherein the illustration is in a schematic embodiment.

The device for coupling the bogie 6 to the vehicle's elbow 1, which has a bogie 6 with the elbow rotatably coupled to a fifth wheel 8, is composed of linear hydraulic motors having piston rod eyes attached to or connected to the elbow 1 and 6 in such a way that the rotation of the diaphragm leads to a reciprocal displacement of the linear hydraulic motors to which the hydraulic line 2 connected via the non-return valves 6 to the throttle valve 2 with pressure regulation 3 and the buffer tank 2 is connected.

The device for coupling the bogie 4 to the vehicle elbow 1 according to the invention operates as follows: When the vane 1 is rotated on the fifth wheel 8, a linear hydraulic motor k is pushed and the liquid filled in the entire hydraulic system is moved by hydraulic line 7 through one non-return valve 4. The volume differences between the displaced linear hydraulic motors 2 are adjusted by the buffer tank 5.

Claims (3)

Device for coupling a bogie to the vehicle's elbow of two and multi-axle trailers * especially for road transport of long loads, which is rotatably connected to the elbow by the fifth wheel, characterized in that the vehicle's elbow (1) and vehicle chassis (6) are interconnected at least one hydraulic motor, the fluid flow of which is limited by the throttle and pressure drop control. Apparatus according to claim 1, characterized in that the oplen (1) and the vehicle chassis (6) are interconnected by two linear hydraulic motors (1). 2) whose fluid flow is limited by at least one throttle (3) β by controlling the pressure drop. Device according to Claims 1 and 2, characterized in that the throttle valve (3) with pressure drop control is connected to the non-return valves (4) based on the Graetzon rectifier principle and supplemented with a buffer tank (5).