Hydraulic system of cleaning and sweeping vehicle

Abstract

The invention provides a cleaning and sweeping vehicle hydraulic system which comprises an integrated hydraulic oil tank. An oil pump; the sweeping disc motor is used for driving the sweeping brush; the valve group is used for adjusting the pressure and the speed when the sweeping disc motor works; the pressure sensor is used for monitoring the working pressure when the hydraulic system works; wherein the integrated hydraulic oil tank, the oil pump, the valve group, the sweeping disc motor and the pressure sensor are connected through an oil path. According to different road conditions, different set current values of the proportional overflow valve and different set voltage values of the proportional reversing valve are set, so that the working rotating speed and working pressure of the sweeping disc motor in different road working states are met.

Description

technical field [0001] The invention relates to the technical field of cleaning and sweeping vehicles, in particular to a hydraulic system for cleaning and sweeping vehicles. Background technique [0002] The sweeper is a vehicle used to clean up garbage on the road. There is a box for accommodating garbage in the sweeper, and the garbage on the road is cleaned by sweeping. Therefore, the speed and pressure of the sweeper depend on the degree of road pollution and the degree of garbage. The greater the particle size and density of the road pollution, the greater the particle size and density of the garbage, the greater the required sweeping speed and pressure, but too high a sweeping speed will cause excessive dust, and too high a sweeping pressure will Seriously affect the life of the hydraulic motor and waste of energy consumption. Therefore, in order to obtain the best brushing effect, it is necessary to adjust the speed and pressure of the brushing according to the road...

AI Technical Summary

Problems solved by technology

The best sweeping effect cannot be obtained, and the speed of the sweeping plate is easily affected by the oil temperature and pressure to change the speed

When the sweeping brush rotates at the set speed, the excess oil at the outlet of the hydraulic pump will flow back to the oil tank from the overflow valve and the throttle valve, which will cause serious energy consumption in the system, and the excess energy will be converted into heat energy, causing the system to heat up and easily Affect system reliability

At present, the cleaning vehicle is not equipped with a pressure monitoring device. Whether there is any abnormality during the cleaning process cannot be known at the first time, which will easily cause waste of resources and damage to components.

[0004] As mentioned above, the actual road pollution levels of different road sections are different, and the optimal sweeping speed and pressure required are also different. Traditional sweeping vehicles cannot adjust the optimal sweeping speed and pressure according to different road conditions to obtain the best cleaning speed. Excellent sweeping effect; and the traditional sweeping car consumes a lot of energy

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