Electro-hydraulic servo synchronous lifting mechanism

Abstract

The electro-hydraulic servo synchronous lifting mechanism is mainly composed of an oil filter, an oil pump, a one-way throttle valve, a cartridge valve, an electro-hydraulic synchronous valve, a lifting oil cylinder, a stop valve, a pressure release valve and the like. The oil tank is connected with the oil filter, the oil filter is connected with the oil pump, the oil pump is respectively connected with the one-way throttle valve and the pressure release valve, the one-way throttle valve is respectively connected with the stop valve, the pressure gauge and the cartridge valve, the cartridge valve is respectively connected with the electro-hydraulic synchronous valve and the lifting oil cylinder, and the lifting oil cylinder is connected with the electro-hydraulic synchronous valve. The lifting hydraulic system of the product adopts an electro-hydraulic synchronous valve and has the functions of pilot control, load sensing, pressure compensation and the like, the output pressure and flow can not be influenced by load change, a lifting arm runs and lifts stably when the hydraulic system works, and the phenomena of up-down fluctuation and clamping stagnation cannot be generated when an agricultural implement is lifted; it is guaranteed that the lifting arm descends without buffering when bearing heavy loads, the sealing effect is good, performance is reliable, energy is saved, and the failure rate is greatly reduced.

Description

technical field [0001] The invention relates to an electro-hydraulic servo synchronous lifting mechanism. Background technique [0002] At present, the existing tractor lifting hydraulic system often breaks down. It can be lifted when it is light or empty, but it often fails to lift when it is heavy. When it is working, the piston rod will fluctuate up and down with the movement of the inner lifting arm, and the lifting lever Severe wear and tear occurs between the lifting cylinder and the agricultural machinery. When lifting, the agricultural machinery jumps up and down, and the vibration is large. Sometimes the system is stuck when it is running and lifting. The hydraulic system uses ordinary valves, and the oil cylinder is easy to release pressure and oil leakage. There is noise, which affects the service life of the hydraulic system. Contents of the invention [0003] The purpose of the present invention is to overcome the above disadvantages and provide an electro-hy...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the above disadvantages and provide an electro-hydraulic servo synchronous lifting mechanism, which mainly solves the problems that often occur in the existing tractor lifting hydraulic system. In place, when the agricultural machinery is lifted up and down, it jumps up and down, the vibration is large, and the system sometimes gets stuck when the system is running and lifting, etc.

Images