Variable-flow water spraying pavement maintenance vehicle

Abstract

The invention discloses a pavement maintenance vehicle. The pavement maintenance vehicle comprises a chassis, a water way system and a hydraulic system, wherein the chassis comprises an engine used for driving the vehicle to travel, the water way system involves a water pump, the hydraulic system involves a hydraulic pump, a water pump motor and a control valve set, the hydraulic pump is in driving connection with the engine, the water pump motor is in driving connection with the water pump, the control valve set is arranged between the hydraulic pump and the water pump motor, and oil liquid output by the hydraulic pump flows to the water pump motor through the control valve set to control a rotating speed of the water pump motor for controlling the water spraying amount of the water pump.According to the pavement maintenance vehicle, the water pump motor is driven to operate through the engine of the chassis, compared with the prior art, an engine which is specially used for drivingthe water pump motor to operate is omitted, so that the size of a clear water tank can be increased as the mounting space is expanded, the total water spraying amount of the whole pavement maintenancevehicle is increased, and the performance parameters of the whole pavement maintenance vehicle are improved.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a road surface maintenance vehicle with variable flow water spraying. Background technique [0002] Traditional road maintenance vehicles include diesel engines, gasoline engines, fresh water tanks, high-pressure water pumps, and water spraying devices. When working, the diesel engine drives the whole vehicle, and the gasoline engine drives the high-pressure water pump to work, pressurize the water in the clean water tank through the pipeline, and spray it out by the water spray device. Its disadvantage is that the water output of the water pump is determined by the input speed. When the speed of the gasoline engine is constant, the water output of the water pump is constant. When working, the user starts the gasoline engine first, and then goes to the cab to operate the driving water spray. During this process, the gasoline engine speed does not change, unless the...

AI Technical Summary

Problems solved by technology

Its disadvantage is that the water output of the water pump is determined by the input speed. When the speed of the gasoline engine is constant, the water output of the water pump is constant.

When working, the user starts the gasoline engine first, and then goes to the cab to operate the driving water spray. During this process, the gasoline engine speed does not change, unless the user gets out of the cab and adjusts the gasoline engine speed twice, so it is difficult for the user to adjust according to the dirty road surface. The amount of water spray is selected according to the situation, the amount of water spray is uncontrollable, and the consumption of clean water is large

Moreover, the gasoline engine has a high failure rate and high working noise

In addition, diesel engines are added with diesel, and gasoline engines with water pumps are added with gasoline. It is troublesome to add double oil products and is not conducive to energy saving and environmental protection.

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