The Design And Analysis Of Key Parts Of The Self-Propelled Wheat Straw Bundling Machine

As an important food crop in China, wheat has the characteristics of large output, wide distribution and so on. Wheat straw is not only an important feed resource, but also a new type of biomass energy.With the rapid development of animal husbandry in China, straw feed has long been in short supply,demand continues to increase. But at the present stage, the utilization of straw is low, resulting in a large waste of straw resources. In order to improve the utilization rate of wheat straw, how to solve the problem of straw collection, transportation and storage becomes very important. In order to achieve the wheat straw, collection and automatic bale packing and design the self walking type wheat straw bundling machine, and the straw collecting, transportation, compressing and strapping etc. key components design innovation. The development of this machine not only reduces the labor intensity of the farmers, but also makes the transportation and storage of wheat straw more convenient. Wheat straw resources recycling, for the end of straw burning, reducing environmental pollution, and even to promote the sustainable development of agriculture has a very important significance.According to the wheat straw collection and the process of binding, the design scheme of the self propelled wheat straw bale machine was determined. The machine is mainly composed of straw collecting header, lifting and conveying device, feeding device, straw bale compressing device etc.. In this paper, the key parts of wheat straw bundling machine are designed, and the experimental study of the prototype is carried out. Main work includes:(1) The design of the whole machine for wheat straw bale machine includes the process flow and the structure of the whole machine,The main technical parameters and transmission line, etc.;(2) The design of key components of wheat straw bundling machine includes: cutting table, pick up straw bundling compression mechanism etc.Design of key mechanism. Innovative design of cutting guide table device can not only in the operation of protection cutter body and did not touch the ground,but also has gathered and guide function of the field scattered grass;(3) The simulation analysis of the compression mechanism of the compression mechanism: the mathematical model of the compression mechanism is established, and the model is added to the model.The simulation analysis of the beam and the load is carried out, and the motion law and the trajectory of the compression mechanism are obtained according to the simulation results;(4) The experimental study on the prototype of wheat straw bale machine: through the field test,the performance of the whole machine is studied.The pressure data of the compression mechanism of compression and compression are collected. According to the data analysis, the relationship between the compression force, the load of the hydraulic cylinder and the density of the bundle is analyzed.