Braking system of bracket car and bracket car
A braking system and support vehicle technology, applied in the field of coal mine machinery and equipment, can solve problems such as low safety and reliability, potential safety hazards, mutual interference, etc., and achieve the effects of improving operational safety, protecting the engine, and improving safety
Active Publication Date: 2022-05-20
SHENHUA SHENDONG COAL GRP +1
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Problems solved by technology
However, the independent control of the service brake and the parking brake in the existing braking system of the bracket car is likely to cause mutual interference, and the safety and reliability are low
At the same time, the existing driving brake and parking brake have nothing to do with the door control and engine control, further causing potential safety hazards and low safety
Method used
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[0024] The specific implementation manner of the present invention will be further described below in conjunction with the accompanying drawings.
[0025] It is easy to understand that, according to the technical solution of the present invention, those skilled in the art can replace various structural modes and implementation modes without changing the essence and spirit of the present invention. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the entirety of the present invention or as a limitation or restriction on the technical solution of the invention.
[0026] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom that are mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings, and they are It is a relative concept, so it may change accordingly accord...
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The invention provides a braking system of a support vehicle and a support vehicle. The system includes a closed pump connected to the motor, a gear handle valve, a pedal valve connected to the oil source of the accumulator, and a parking brake device. The closed pump The input end of the gear lever valve is connected with the output end of the gear handle valve; the pedal valve includes a pedal valve body, a first pedal control valve, and a second pedal control valve, the input end of the first pedal control valve is connected with the accumulator oil source, and the second pedal control valve is connected with the oil source of the accumulator. The output end of the first pedal control valve is connected with the reducer, the input end of the second pedal control valve is connected with the accumulator oil source, the output end of the second pedal control valve is connected with the input end of the gear handle valve; the parking brake The device includes a parking brake switch communicated with the air storage tank, and a parking brake valve assembly communicated with the brake pump, the output end of the parking brake switch is communicated with the input end of the parking brake valve assembly, and the parking The output end of the brake valve assembly communicates with the input end of the speed reducer and the gear handle valve respectively. The invention can improve safety and reliability.
Description
technical field [0001] The invention relates to the technical field of coal mine machinery and equipment, in particular to a braking system for a support vehicle and a support vehicle. Background technique [0002] The support truck is the equipment for transporting the hydraulic support of the coal mine fully mechanized mining face. It belongs to mining equipment. Or special handling tools. At present, the following two types of braking systems are mostly used on the existing large-scale heavy engineering equipment such as support vehicles: 1) The hydraulic braking system provides high-pressure oil to the brakes through components such as brake pedal valves, liquid filling valves, and accumulators. Perform service braking; 2) The parking brake system generally adopts the brake mode of spring brake and pressure release. However, the independent control of the service brake and the parking brake in the existing braking system of the support vehicle is likely to cause mutual...
Claims
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IPC IPC(8): B60T17/18B60T15/04B60T15/00B60T13/14F01M1/20
CPCB60T17/18B60T15/04B60T15/00B60T13/14F01M1/20
Inventor 郭爱军许联航韩飞
Owner SHENHUA SHENDONG COAL GRP