Design and Experiment of Test-Bed for Straw Compression Forming and Baling

Abstract

In order to study the performance of packing, compression and baling and obtain the influence of working parameters on complete machine, a test-bed was developed based on the packing, compression and baling devices of baler. The measure system consists of IPC, sensors, a data acquisition card and a type of software programmed by using VC++. It can real-time collect, display, process and analyze the parameters and loads of the working parts. Wheat straws with 40% moisture content were used to carry on compression and baling experiments. The test results show that average total power consumption of the working parts, average force acting on the plunger and average force acting on the connecting rod is 3.44 kW, 873.5 N and 11965.8 N respectively when the straw feed rate is 0.8 kg/s and the compression frequency of the plunger is 75 strokes per minute. The bale density can reach up to 125 kg/m3.