| Design and test of quick changeover device for agricultural machinery and tools in hilly areas |
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| DOI：10.7606/j.issn.1000-7601.2022.03.30 |
| Key Words: orchard mechanization quick changeover device virtual prototype finite element analysis changeover test hilly area |
| Author Name | Affiliation | | YANG Tian | Department of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | ZHAO Wuyun | Department of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | XIN Shanglong | Department of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | CHEN Bohong | Department of Horticulture, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | QU Hao | Department of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou, Gansu 730070, China |
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| Abstract: |
| To improve mechanization level of orchards in hilly and mountainous areas of China and solve inefficiency and unsuitability with traditional hanging mode of agricultural machinery and tools for operating in hilly and mountainous orchards, an agricultural machinery with quick changeover device based on the crawler dynamic chassis of orchards was developed. The working principle of whole machine was analyzed to determine the design components and parameters. The quick changeover device was composed of the hoisting frame and hanging frame, and two sets of hydraulic cylinders were used as the power for the lifting and locking of the machine and tools. Based on ANSYS Workbench software, stress analysis of the quick changeover device showed that maximum displacement and deformation of the hoisting frame and the running frame were 0.06 mm and 0.05 mm respectively, and maximum equivalent stress was 21.206 MPa and 89.039 MPa respectively. The quick changeover test of the prototype showed that the single connection time of the quick changeover device was only 3.67 s, and the time to complete a single changeover of agricultural machinery and tools was less than 40 s. The process of the quick changeover was safe and stable, and the power combination was reliable. The field operation was stable and reliable, and operation index met the use demand.The design provided equipment support and research and development reference for machine and tool exchange link of agricultural multi-functional operation vehicles in hilly areas. |
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