Electronic travelling crane braking system for mining electric wheeled dumper

The utility model discloses an electronic travelling crane braking system for a mining electric wheeled dumper, which belongs to the field of mining dumpers. An electronic pedal is connected with an input end of a valve driver, a front axle electric liquid proportion braking valve and a rear axle electric liquid proportion braking valve are respectively connected with an output end of the valve driver, the front axle electric liquid proportion braking valve is connected with a front axle travelling crane brake, and the rear axle electric liquid proportion braking valve is connected with a rear axle travelling crane brake. The front axle electric liquid proportion braking valve is connected with an oil tank through a front axle braking maintain valve, the rear axle electric liquid proportion braking valve is connected with the oil tank through a rear axle braking maintain valve, and the front axle braking maintain valve and the rear axle braking maintain valve are connected with a steering hydraulic system. The electronic travelling crane braking system for the mining electric wheeled dumper has the advantages of flexibility in controlling, convenience in operation, high reliability, higher easiness in fault diagnosis and sensitivity in braking.