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Brake hydraulic braking system and method

A technology of hydraulic brakes and brakes, which is applied in the direction of electric brake systems, brakes, brake transmissions, etc., can solve problems such as brake wear, vehicle safety hazards, and short service life of brakes, so as to improve stability and safety , the effect of reducing work intensity

Active Publication Date: 2022-01-11
TAIYUAN INST OF CHINA COAL TECH & ENG GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the slope of the mine roadway is larger than that of the road surface and the travel is long, when the vehicle is heavily loaded downhill, it needs to brake frequently, resulting in serious wear of the brakes, short service life of the brakes, high cost of replacing the brakes, and a greater potential safety hazard for the vehicle

Method used

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  • Brake hydraulic braking system and method
  • Brake hydraulic braking system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] This embodiment provides a brake hydraulic braking system, including a brake pedal 3, a pressure regulating valve 2, and a pressure sensor 4, the brake pedal 3 is connected to the pressure regulating valve 2, and the movement of the brake pedal 3 is used to adjust the pressure regulating valve The oil pressure at the outlet of pressure regulating valve 2, the inlet of pressure regulating valve 2 is used to feed high-pressure oil, the pressure sensor 4 is used to measure the oil pressure at the outlet of pressure regulating valve 2, and the pressure sensor 4 is used to communicate with the electric feedback brake device connected, the electric regenerative braking device can adjust the braking force of the electric regenerative braking device according to the oil pressure detected by the pressure sensor 4, the outlet of the pressure regulating valve 2 is used to communicate with the piston cylinder 5 of the brake, and the outlet of the pressure regulating valve 2 The oil ...

Embodiment 2

[0028] This embodiment provides a brake hydraulic braking system, such as figure 1 As shown, the brake of the brake hydraulic brake system provided in this embodiment is a safety brake. The safety brake is a working mode in which the spring drives the brake fluid to drive the pressure to release.

[0029]In this embodiment, the pressure regulating valve 2 is that the greater the downward distance of the brake pedal 3, the smaller the oil pressure at the outlet of the pressure regulating valve 2. The piston cylinder 5 is provided with a piston rod 8, and the piston cylinder 5 includes a rod cavity 7 and The rodless chamber 6 is provided with a spring 9 for pushing the piston rod 8 out of the piston cylinder 5 in the rodless chamber 6, and the rod chamber 7 of the piston cylinder 5 communicates with the outlet of the pressure regulating valve 2; when the pressure sensor 4 detects When the oil pressure is lower than the maximum oil pressure at the outlet of the pressure regulati...

Embodiment 3

[0033] This embodiment provides a brake hydraulic braking system, such as figure 2 As shown, the difference from the second embodiment is that the brakes of the brake hydraulic braking system provided in this embodiment are non-safety brakes. The non-safety brake is a hydraulically actuated brake spring actuated and released working mode.

[0034] In this embodiment, the pressure regulating valve 2 is that the greater the downward distance of the brake pedal 3, the greater the oil pressure at the outlet of the pressure regulating valve 2. The piston cylinder 5 is provided with a piston rod 8, and the piston cylinder 5 includes a rod cavity 7 and The rodless chamber 6 and the rod chamber 7 are provided with a spring 9 for pushing the piston rod 8 to shrink into the piston cylinder 5. The rodless chamber 6 is connected with the outlet of the pressure regulating valve 2. When the oil pressure detected by the pressure sensor 4 When the hydraulic pressure is greater than that, th...

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Abstract

The invention discloses a brake hydraulic braking system, which relates to the field of brake hydraulic systems, and the system comprises a brake pedal, a pressure regulating valve and a pressure sensor, the brake pedal is connected with the pressure regulating valve, the brake pedal moves to regulate the oil pressure of the outlet of the pressure regulating valve, and the inlet of the pressure regulating valve is used for introducing high-pressure oil; the pressure sensor is used for measuring the oil pressure of an outlet of the pressure regulating valve, the pressure sensor is used for being electrically connected with an electric regenerative braking device, the electric regenerative braking device can regulate the braking force of the electric regenerative braking device according to the oil pressure detected by the pressure sensor, and the outlet of the pressure regulating valve is used for being communicated with a piston cylinder of the brake. And the pressure of oil flowing into a piston cylinder of the brake from an outlet of the pressure regulating valve is used for regulating the braking force of the brake. According to the hydraulic braking system of the brake, electro-hydraulic combined braking of the vehicle can be achieved, and the safety of the vehicle is improved.

Description

technical field [0001] The invention relates to the field of brake hydraulic systems, in particular to a brake hydraulic braking system and method. Background technique [0002] Due to the special explosion-proof requirements of coal mines and the muddy and watery operating conditions of underground roadways, most mining vehicles use closed wet brakes. At the same time, the whole vehicle needs to be equipped with a full hydraulic braking system. The action can realize the continuous change of the brake pressure, so as to control the size of the brake force. Due to the slope of the mine roadway is larger than that of the road surface and the stroke is long, when the vehicle is heavily loaded downhill, it needs to brake frequently, resulting in serious wear of the brakes, short service life of the brakes, high cost of replacing the brakes, and greater safety hazards for the vehicle . Contents of the invention [0003] The object of the present invention is to provide a bra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/12B60T13/68B60L7/18B60L7/26
CPCB60T13/12B60T13/686B60L7/18B60L7/26Y02T90/16
Inventor 刘德宁祁宏赵远王丽威王治伟肖洪彬薛喆张娜韦建龙贾秀华
Owner TAIYUAN INST OF CHINA COAL TECH & ENG GROUP
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