| China has abundant natural pasture and crop straw resources, these resources are feed rawmaterials, but these resources are unevenly distributed. To compress the loose forage after reducingthe volume during transportation and storage is the main method to resolve this contradiction.As there are some problems of the traditional hay baler compression mechanism, this paperpresents the use of the six-shaft compress mechanism to solve the traditional compressionmechanism deficiencies in the design.Hay baler compression mechanism, directly affect the baler power required and compressionquality of the hay. on the market, the crank-slider compression mechanism of hay balers haveshortcomings such as too big supporting force, low productivity and so on. It's difficult to achievethe hay compression theory as the theoretical basis to design the compression mechanism featuresin the design. For using the six-shaft mechanism labor-saving features and the complex motioncharacteristics of the slider to the hay compression theory, this paper studies the following aspects:(1) After the study based on the research of the hay baler and the hay compression theory inthe word, the author proposed according to compression theory, rational utilization of labor-savingfeatures and the motion characteristics of the slider to achieve a lower crank driving force, andimproving the quality of the Hay compression effects.(2)According to the characteristics of slider-crank hay baler and the hay compressiontheory design the six-shaft compress mechanism. Complete kinematics and dynamics models ofslider-crank compression mechanism and compared to six-shaft compress mechanism.(3) Has established the kinematics and dynamic models of the six-shaft compressmechanism, sequence method for solving the model has been, through the analysis of it'skinematics and dynamics characteristics, proposed the requirement for optimization design for theoptimization of the six-shaft compress mechanism's parameter. (4)According to the crank slider compression mechanism and the characteristics of six-shaft compress mechanism design variables, optimization objective and constraint functions,combined with the requirements of the hay compression theory, using genetic algorithms, testsoftware and method of optimization guided by parameters' modification completed a six-shaftcompress mechanism's parameter optimization.(5)After optimization, has been established the six-shaft compress mechanism's three-dimensional modeling and simulation of virtual prototyping environment. By contrast that, underthe same working stroke, after rational use of labor-saving effect of six-shaft mechanism,the designcan crank slider compression mechanism with saving driving force and maintain the haycompression creep properties in more long time and so on. |
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