Design And Experimental Study On Straw Baler Crushing Parts

In recent years, the yield of corn and its stalk increased year by year in our country, resulting in the emergence of a large number of surplus straw. And most of the straw were used as firewood to cook, and even in the field to carry out a simple burning, resulting in serious waste of resources. In order to solve the hazards caused by the burning straw, it is very important to develop a straw bale tying machine which is suitable for our country. At present, the straw bale collection is the main processing method, so it is very necessary to develop a suitable bundling machine. The crushing component is an important part of the baling machine, which is used for straw crushing, then throwing into the baling chamber to complete the baling operation. In this paper, according to the design of straw returning machine. According to the design of straw returning machine, the thesis designed and simulated the crushing component of round bale tying machine, and completed the production of the prototype. And then, the field test was conducted to verify the performance of the machine. The specific contents of the research were as follows:1. Established the three-dimensional model of the crushing component parts based on Solid Works, and complete the assembly.2. Based on the multi-body dynamics simulation software ADAMS, three kinds of arrangement scheme of the knife shaft were analyzed based on simulation.3. Modal analysis of the knife shaft subassembly was done based on ANSYS Workbench.4. The action balance analysis was done to the cutter shaft, based on the ADAMS, to make the knife shaft dynamic balance reach G6.3 level, and to meet the design requirements.5. The factors are the speed of the unit forward, the speed of the cutter shaft and the shape of the blade, investigation of power consumption and straw crushing rate of qualified components. experiments were designed, the primary and secondary factors and regression equation were obtained respectively. And the response surface analysis was carried out.6. Field experiments were conducted to test that whether the indexes could meet the design requirements.