The invention discloses a hydraulic emergency braking system of a mining dump truck, which belongs to the field of mining machinery. An oil outlet of a hydraulic pump is connected with a one-way valveI and a one-way valve II. The one-way valve I is connected with a three-position three-way pilot valve, a shuttle valve and a pedal valve; a front brake energy accumulator is mounted in an oil path of an oil outlet of the one-way valve I; an oil outlet of the one-way valve II is connected with the three-position three-way pilot valve, the shuttle valve and the pedal valve; a rear brake energy accumulator is mounted in an oil path of the oil outlet of the one-way valve II; an oil outlet of the shuttle valve is connected with a two-position three-way pilot valve; the two-position three-way pilot valve is connected with a control end of the pedal valve; and an oil outlet of the three-position three-way pilot valve is connected with a control end of the two-position three-way pilot valve. Thevehicle braking state is monitored through hydraulic pressure, and hydraulic automatic emergency braking is achieved according to the vehicle braking pressure state; the safety and reliability are improved through hydraulic automatic emergency braking, and the possibility of errors of a driver is avoided.
本发明公布一种矿用自卸车液压紧急制动系统,属于矿山机械领域。液压泵出油口分别连接单向阀Ⅰ、单向阀Ⅱ。单向阀Ⅰ分别连接三位三通先导阀,以及梭阀和踏板阀;单向阀Ⅰ的出油口的油路中安装有前制动蓄能器;单向阀Ⅱ出油口分别连接三位三通先导阀,以及梭阀和踏板阀;单向阀Ⅱ的出油口的油路中安装有后制动蓄能器;梭阀的出油口连接二位三通先导阀,二位三通先导阀连接踏板阀的控制端;三位三通先导阀的出油口连接二位三通先导阀的控制端。本发明使用液压监测车辆制动状态,根据车辆制动压力状态,实现液压自动紧急制动;液压自动紧急制动提高了安全性和可靠性,避免了司机失误的可能。
Hydraulic emergency braking system of mining dump truck
矿用自卸车液压紧急制动系统
2020-10-16
Patent
Elektronische Ressource
Chinesisch
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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