Braking device of heavy-duty mining dump truck

A mining dump truck and braking device technology, applied in the direction of hydraulic brake transmission, brakes, etc., can solve the problems of small braking torque, unsuitable for large-tonnage dump trucks, and complicated pipeline connections

Inactive Publication Date: 2012-10-10
INNER MONGOLIA NORTH HAULER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, small-tonnage off-highway dump trucks generally use pneumatic brake devices, and large-tonnage off-road dump trucks use hydraulic brake devices. The pneumatic brake device makes compressed air enter the pneumatic

Method used

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  • Braking device of heavy-duty mining dump truck
  • Braking device of heavy-duty mining dump truck
  • Braking device of heavy-duty mining dump truck

Examples

Experimental program
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Embodiment Construction

[0018] The technical scheme of the present invention is described in detail below in conjunction with accompanying drawing:

[0019] refer to Figure 1 to Figure 4 As shown, the present invention fuel tank 1, brake pump 2, filter 3, brake multi-way valve 4, parking brake valve 5, brake pedal valve 6, direction control valve 7, loading brake valve 8, front wheel Brake 9, rear wheel brake 10, parking brake 11, accumulator 12, parking brake pressure switch 13, rear brake accumulator pressure switch 14, front brake accumulator pressure switch 15, rear brake pressure The switch 16, the front brake pressure switch 17, the oil suction port of the brake pump 2 is connected to the oil tank 1, and the oil outlet is connected to the brake multi-way valve 4 through the filter 2; Valve 5 and brake pedal valve 6 are connected, and the brake pedal valve 6 is connected with the front brake 9 and the parking brake valve 5 respectively, and the parking brake valve 5 is connected with the rear ...

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Abstract

The invention belongs to the field of rigid mining dump trucks, and particularly relates to a braking device of a heavy-duty mining dump truck. The braking device comprises an oil tank, a brake pump, a braking multiple-unit valve, a pedal braking valve and a front brake, an oil suction port of the brake pump is connected with the oil tank, an oil outlet of the brake pump is connected with the braking multiple-unit valve via a filter, the braking multiple-unit valve is respectively connected with a parking braking valve and the pedal braking valve, the pedal braking valve is respectively connected with the front brake and the parking braking valve, and the parking braking valve is respectively connected with a rear brake and a parking brake. Since the braking multiple-unit valve, the parking braking valve and a loading braking valve are arranged to enable the braking device of the heavy-duty mining dump truck to realize functions of driving brake, parking brake, loading brake, emergency brake and automatic brake, safety and reliability of the truck are effectively improved.

Description

technical field [0001] The invention belongs to the field of rigid mining dump trucks, in particular to a brake device for heavy mining dump trucks. Background technique [0002] Heavy-duty mining dump trucks are off-highway dump trucks, mainly used for the transportation of ore in large-scale open-pit mines. Heavy-duty mining dump trucks are mainly composed of rigid frame, engine, transmission box, rear axle assembly, cab assembly, and braking device. Among them, the brake device is an important part of the heavy-duty mining dump truck, especially having a crucial impact on the safety and reliability of the dump truck. [0003] At present, small-tonnage off-highway dump trucks generally use pneumatic brake devices, and large-tonnage off-road dump trucks use hydraulic brake devices. The pneumatic brake device makes compressed air enter the pneumatic actuator by stepping on the brake pedal valve to brake the vehicle. The pneumatic braking device has many components, complex ...

Claims

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Application Information

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IPC IPC(8): B60T11/10B60T8/30
Inventor 孟有平王逢全刘强狄志红郭海全高利军贾占军
Owner INNER MONGOLIA NORTH HAULER
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