SU1431973A1 - Vehicle steering system - Google Patents

Abstract

The invention relates to a transport engineering, primarily to control systems for self-propelled vehicles with a hydromechanical gearbox. The aim of the invention is to improve the reliability of the vehicle. The control system contains a brake system that includes a compressor 1, a pressure regulator 2, air cylinders 3, 4, 5, a split double safety valve 6, service brakes control bodies 7, a control body 8, a night stand brake connected by a line a cylinder 18, a hundred night brake, and a transmission hydraulic system consisting of a pump, a spring-loaded clutch release valve 20 with a control cavity, and a clutch shutdown valve control apparatus 11. 1 il. i (Л С 4 со qD СО

Description

The invention relates to a transport engineering, primarily to control systems for self-propelled vehicles with a hydromechanical gearbox.

The purpose of the invention is to increase the reliability of the vehicle.

The drawing shows a hydraulic diagram of the interaction of the brake system with the gearbox.

Compressor 1 is connected through pressure regulator 2, air cylinders 3-5 and separating double protective valve 6 to operating brakes 9 and 8, and one hundred night brakes 10.

The input channels of the gearbox control unit 11 are connected by lines 12 and 13 to lines 14 and 15 of the service Brakes after the body 7 control of the service brakes. In lines 16 and 17, the inlet duct of the control device is connected respectively to the air tank 3 and the cylinder 18 one hundred night brakes. Mast 19 output channel of control unit 11 is connected to valve 20 for disconnecting couplings of hydromechanical gearbox.

Before driving, the vehicle is braked by a hundred-night iropM030M. When the engine is turned on, the compressor delivers a compressed air to the operating brakes 7 and 8 and to the clutch shut-off valve 20, which, in the absence of compressed air in the line 17, bypasses it to. the valve 20 disconnecting the clutch transmission, resulting in the box is disabled. When driving, the driver releases the parking brake, the compressed air enters the cylinder 18 and the main line 17. Under the pressure of the compressed air in the main line 17, the valve control 20 stops the passage of compressed air, together with the main line 19 and the valve cavity 20 with the atmosphere, as a result of which transmission in hydromechanical box.

When the vehicle brakes the working brakes, the compressed air from lines 14 and 15 through lines 12 and 13 enters the gearbox control valve, opening the latter for passing compressed air from line 16 through the appliance

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The valve 11 controls the valve 20 and the main valve 19 into the valve 20, which is simultaneously isolated from the atmosphere and deactivates the gearbox. When the brakes are terminated by service brakes, compressed air from lines 12-15 is released into the atmosphere, as a result of which valve control device 11 closes and line 19 and valve 20 communicate with the atmosphere through control device 11 under the effect of compressed air pressure in line 1 7 .

When braking the vehicle with a night brake, compressed air is removed by the control element 8 from cylinder 18 and line 17 to atmosphere, with the result that valve control device 11 closes and trunk 19 and KJjanaH 20 are isolated from the atmosphere and connected through the apparatus 11 controls valve 20 with line 16. Under pressure of compressed air, valve 20 turns off the hydromechanical box.

Claims (1)

Invention Formula A vehicle control system containing a braking system including a compressor, a pressure regulator, air tanks, a split double safety valve, service brakes controls connected to the service brakes, one hundred night brake control, connected to the one hundred night night cylinder a brake and a hydraulic transmission control system consisting of a pump, a spring-loaded shut-off valve for the control box sleeves, characterized in that To improve vehicle reliability, it is equipped with a clutch shut-off valve control device, including controlled spring-loaded normally closed valves and a controlled spring-loaded normally open valve, with all valves connected via an air cylinder and a pressure regulator to the compressor, outlets of normally closed valves - from one of the control cavities of a normally open valve, another 3 1431973 the control cavity of which connects the gistral, connecting the organs of the axle with the control of the control of the station of the braking of working brakes with the raconochny brake and the cylinder, one hundred and one night brakes, and the output is normal the brake, and the control of the cavity of the open valve - with the cavity of normally normal valves - from a small valve of the opening of the couplings.