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A non-highway mining dump truck ABS anti-lock hydraulic braking system

A mining dump truck, anti-lock braking technology, applied in the direction of brakes, etc., can solve the problems of poor road conditions, bad working road conditions, and front wheels lock first.

Active Publication Date: 2018-09-25
XUZHOU XCMG MINING MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the characteristics of heavy load (currently up to 450t) and harsh working road conditions, this model generally adopts a full hydraulic braking system to achieve vehicle braking control. Especially when braking on a downhill with a heavy load, once the steering ability is lost, it will cause serious consequences. The situation that the front wheels are locked first should be avoided, and the braking efficiency of the vehicle should be improved.

Method used

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  • A non-highway mining dump truck ABS anti-lock hydraulic braking system
  • A non-highway mining dump truck ABS anti-lock hydraulic braking system

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Experimental program
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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0018] Such as figure 1 , figure 2 As shown, an ABS anti-lock hydraulic braking system for off-highway mining dump trucks includes an oil supply group 1, a brake pedal valve 2, a relay valve 8, a shuttle valve 9, a brake valve group 10, and an accumulator 11 and the ABS anti-lock braking control device, the oil supply group 1 and the accumulator 11 are connected to the brake valve group 10, and the ABS anti-lock braking control device is respectively connected to the The brake pedal valve 2 and the brake valve group 10 are connected, and the two ends of the shuttle valve 9 are respectively connected to the relay valve 8 and the brake pedal valve 2, wherein the ABS anti-lock braking control device includes wheel Speed ​​sensor 3, pressure sensor 4, electro-hydraulic proportional valve 5, ABS electronic control unit 6 and caliper disc brake 7,...

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Abstract

The invention discloses an ABS hydraulic braking system for a non-road mining dump truck. The working process of the ABS hydraulic braking system can be divided into a conventional braking stage and an ABS hydraulic braking stage, and the safety and reliability of the truck traveling on non-road are improved. Under the condition that adhesion coefficients of all wheels and a road surface are greatly different, the sliding of the wheels is limited or wheel locking is reduced to the minimum degree, so that the braking efficiency of the truck, the direction stability in the braking process and the lateral stability in the braking process are improved, the wheel abrasion condition is reduced, and the braking distance is shortened.

Description

technical field [0001] The invention belongs to the technical field of electro-hydraulic control of construction machinery, and in particular relates to the application of an ABS anti-lock braking system to a hydraulic braking system of a non-highway mining dump truck. Background technique [0002] Non-highway mining dump truck refers to a special load-carrying vehicle for short-distance transportation on special roads such as open-pit mines or large-scale civil construction sites. It is widely used in various open-pit mines, hydropower projects, railway and road construction projects and large-scale construction projects. middle. Due to the characteristics of heavy load (currently up to 450t) and harsh working road conditions, this model generally adopts a full hydraulic braking system to achieve vehicle braking control. Especially when braking on a downhill with a heavy load, once the steering ability is lost, it will cause serious consequences. It is necessary to avoid t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T8/1761B60T8/36
CPCB60T8/1761B60T8/363
Inventor 李涛孙炳玉孟庆勇袁自成左惠强姚锡江朱新波朱孝鲁东东郭振华
Owner XUZHOU XCMG MINING MACHINERY CO LTD
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