Multifunctional hydraulic cleaning filter car

Abstract

The invention discloses a multifunctional hydraulic cleaning filter car. Existing hydraulic oil filter cars cannot provide various filter precision grades and cannot conduct data analysis on hydraulicoil contaminants. Return oil of the multifunctional hydraulic cleaning filter car needs to pass through a return oil detection port, a magnetic filter and a coarse filter. Output oil needs to pass through an output oil detection port, an adjustable filter precision loop, a fine filter and a main oil tank oil suction filter. The return oil detection port and the output oil detection port are eachcomposed of a sampling stop valve, a pressure reducing valve, a flowmeter, a throttling valve and a pressure gauge and are connected with a detection device. The adjustable filter precision loop is composed of a first special fine filter, a second special fine filter, a first two-position three-way reversing valve, a second two-position three-way reversing valve, a second stop valve, a first checkvalve and a second check valve, and three filter precisions can be selected. An oil storage tank is connected with a main oil tank through an oil storage tank oil suction filter, an oil storage tankoil pump and an oil supplement connector in sequence. The three different filter grades are provided by the multifunctional hydraulic cleaning filter car and can be freely switched, and the on-site adaptability is high.

Description

technical field [0001] The invention relates to a hydraulic cleaning and filtering vehicle, in particular to a multifunctional hydraulic cleaning and filtering vehicle for construction machinery. Background technique [0002] As an important part of the hydraulic transmission system, the quality of hydraulic oil directly affects the normal operation of the hydraulic system. About 70% of hydraulic system failures are caused by hydraulic oil. After long-term use of hydraulic oil, pollution problems will inevitably occur, resulting in varying degrees of decline in important properties such as viscosity, corrosion resistance, and lubricity. In order to maintain the normal operation of the equipment, only the method of regularly changing the hydraulic oil is adopted. This method will not only waste a lot of manpower and financial resources, but also pollute the hydraulic system during the oil change process. In order to solve this problem, some oil filter vehicles have also app...

AI Technical Summary

Problems solved by technology

[0003] However, the existing hydraulic oil filter car only provides the function of filtering, and cannot clean the inside of the hydraulic system

At the same time, the filtration accuracy is not as high as possible. Different equipment has different requirements for the cleanliness of the oil. An aircraft braking system has much higher requirements for the cleanliness of hydraulic oil than the hydraulic system of an excavator. The existing technology There is no equipment that provides multiple filter fineness levels

The hydraulic system inevitably has leakage problems during operation, and the filtration itself will also cause oil loss

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