Hydraulic cleaning and filtering system and method for bulldozer transmission

Abstract

The invention provides a hydraulic cleaning and filtering system and method for bulldozer transmission. A sensor acquires corresponding parameter information, and controls a hydraulic electromagneticvalve, a motor and a heater according to the parameter information; the hydraulic electromagnetic valve is connected with a controller, and is used for controlling opening, closing and a flowing direction of oil fluid under control of the controller; and the system realizes cyclic filtration of a bulldozer transmission hydraulic system through a hydraulic pump mounted on a bulldozer to filter pollutants such as scrap iron, welding slag and glue residues in the bulldozer transmission hydraulic system into a filter in an oil fluid circulating manner. The system has a lifting function, and can enable oil in an oil tank to rise up, so that the oil fluid can enter bulldozer transmission system components; and after filtration is completed, the oil level in the oil tank is reduced, so that the oil fluid can flow back into the oil tank. The hydraulic cleaning and filtering system for bulldozer transmission controls temperature of the oil fluid at a proper range through the heater and a heat dissipater; and by cooperation with a proper engine speed, the hydraulic cleaning and filtering system guarantees scouring and filtering effects.

Description

technical field [0001] The invention relates to the field of bulldozer transmission hydraulic cleaning and filtration, in particular to a system and method for bulldozer transmission hydraulic cleaning and filtration. Background technique [0002] Bulldozers rely on the transmission system to transmit power to the driving wheels to complete walking and work. Due to the complex structure of the bulldozer transmission system, it has multiple components such as gearboxes, torque converters, and steering brakes. At the same time, the precision requirements of each component are relatively high. Therefore, it has relatively high requirements on the cleanliness of the system. Various components related to the transmission system, such as rear axle boxes, gearboxes, torque converters, steering brakes, hydraulic pipelines, pumps, valves, etc., have iron filings, welding slag, welding beans, dust, slag and other pollutants on the cleanliness. All have an impact. Some parts cannot be...

AI Technical Summary

Problems solved by technology

Various components related to the transmission system, such as rear axle boxes, gearboxes, torque converters, steering brakes, hydraulic pipelines, pumps, valves, etc., have iron filings, welding slag, welding beans, dust, slag and other pollutants on the cleanliness. Some parts are purchased in the form of assemblies and cannot be cleaned, or the pollutants cannot be completely removed during cleaning. When the bulldozer is working, the sundries will enter the pump, valve, torque converter, gearbox and other important components along with the transmission oil. The transmission parts of these parts will cause damage to these parts, which will greatly reduce the working efficiency of the bulldozer, reduce the service life of hydraulic oil and bulldozer, and make maintenance more difficult.

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