Measurement and Control System of Hydraulic Excavator Energy Recovery and Reuse Energy-saving Device
Falling gravitational potential energy and swing braking kinetic energy of the hydraulic excavation are converted into the heat energy of the oil in the form of throttling and overflow,which seriously affects energy efficiency of whole machine.It is urgent to improve efficiency of hydraulic system of the hydraulic excavator.Aiming at this problem,an energy-saving device scheme for recovery and reuse of excavator energy based on three-chamber accumulator is proposed.The device can recover potential energy of excavation boom and kinetic energy of rotary brake,which was used to drive boom lifting.Firstly,working principle of energy-saving device is introduced.Then,the measurement and control system of energy-saving device is designed.The lower computer controller program is written by CoDeSys to directly control the action of the energy-saving device to realize energy recovery and reuse.The upper computer program is developed in C# language for simulation debugging and data monitoring of electric control system and hydraulic system of energy-saving device,and remote wireless communication function of energy-saving device is realized.The test results show that system can control the opening and closing of cartridge valve and the opening of the proportional throttle valve quickly and accurately.The goal of remote control of energy-saving device and real-time data collection is achieved.The boom potential energy recovery efficiency of energy-saving device is 84.9％,the boom energy saving efficiency is 52.8％,and the kinetic energy recovery efficiency under the swing brake condition is 41.1％.
energy-saving devicemeasurement and control systemenergy recovery and reusethree-chamber accumulator
万方数据
维普
