A soft braking and energy regeneration proportional control system for a gearbox

Abstract

The invention discloses a soft braking and energy regeneration proportional control system of a gearbox, comprising: a main pump control unit, an energy regeneration unit, a soft braking control unit, a fuel engine starting unit, an air blowing dust unit, and a main pump control unit It is connected with the energy regeneration unit, soft brake control unit, and blowing dust unit. The energy regeneration unit is used to store energy and provide soft braking load. The blowing dust unit is used to dissipate heat or blow dust for the suction The suction port increases the intake air volume, and the fuel engine starting unit is connected with the main pump control unit and the energy regeneration unit. It can also be used to control the main pump control unit to stop pumping oil in an emergency in the hydraulic system. The layout of the hydraulic components is reasonable, and the various units cooperate with each other to make full use of the hydraulic oil to realize the functions of graded braking, oil heat dissipation, air filter dust removal, and increasing the air intake of the fuel engine.

Description

technical field [0001] The invention relates to the field of vehicle hydraulic control systems, in particular to a soft braking and energy regeneration proportional control system of a gearbox. Background technique [0002] In the production and operation of heavy-duty vehicles in mining areas, due to their heavy-duty operation and complex road conditions, the hydraulic system in mining transport vehicles is very important. As an important part, it can be used for steering systems, service brake systems, lifting system. Also in the braking and passing of vehicles, the waste of hydraulic energy is also very common. The hydraulic system is a key technology in heavy-duty mine transport vehicles. Due to the load in the mining area, the road surface is undulating, especially there will be steep slopes or slopes. On a long slope, when the vehicle is in use, the brake pads are under braking for a long time, which is prone to brake failure, and engine failure will also cause engine...

AI Technical Summary

Problems solved by technology

Also in the braking and passing of vehicles, the waste of hydraulic energy is also very common. The hydraulic system is a key technology in heavy-duty mine transport vehicles. Due to the load in the mine area, the road surface is undulating, especially if there are steep slopes or slopes. On a long slope, when the vehicle is in use, the brake pads are under braking for a long time, which is prone to brake failure, and engine failure will also cause engine brake failure

[0003] For example, a patent titled a mining dump truck hydraulic brake control system disclosed in the Chinese patent database, the publication (announcement) number is CN202608756U, this mining dump truck hydraulic brake control system includes: hydraulic oil tank, oil suction filter Oil tank, variable displacement plunger pump, high-pressure oil filter, rear axle accumulator, front axle accumulator, brake filling valve group, emergency brake electromagnetic reversing valve, pilot brake control valve, loading and dry Wet road surface control valve group, front axle brake, brake light switch, rear axle brake, parking brake, parking brake cylinder, characterized in that the variable piston pump is used as the power source of the system, and the brake is adjusted according to the load pressure The displacement of the pump can achieve the purpose of energy saving and efficiency enhancement, but because the engine is used to provide power to the variable plunger pump, after the engine stops working due to failure, the braking system of the vehicle will fail, and this kind of mining dump truck The hydraulic oil in the hydraulic brake control system is only used for braking, and the utilization efficiency of hydraulic energy is relatively low

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