Study On Fast Soil Sampling Equipment

Focusing on the needs of the development of precision agriculture, it had been the national plan that multifarious agricultural machines were required to be invented. Based on the soil information of the key issues for the rapid acquisition breakthroughs, through the analyses and integrations of the equipment parts, thesis designed an automatic car sampling device which had the independent intellectual property rights of efficient, practical and low-cost. Thesis develops an automatic soil sampling device to build services in precision farming system which test well. And provide key technology for the industrialization of agricultural high-tech products.For the needs of the rapid acquisition of soil information, a variety of vehicle soil sampling device were developed. For the shallow soil (1.2M) and the miscellaneous hardware soil sampling, the vehicle vibration acquisition device was developed. In order to achieving 2M sampling depth three structures are designed: the first soil collection device is attached to the sliding 1.2M seat, by means of travelling up and down the slide, setting two-tube set of drilling soil sampling device. Since the tube needed taking over and separated the sampling process, so the sampling rate is affected; the second structure is a whole set of drilling soil sampling devices. Through the analysis of existing mature oriented approach, designs the institutions based on displacement of soil collection devices doubled and the virtual prototype. Rail column sampling depth is only 40CM higher, effectively reducing the height of guide column; the final sampling of the structure is the screw nut and reliable feed mechanism, through the establishment of the screw nut feed mechanism, can easily drive up and down the sampling tube 2M. Supplemented by sampling tube to the top of the hydraulic motor rotates the rotating cutting head through the role of sampling to reduce sampling buried obstacles to achieve great depth of soil sampling.Finally, through the mechanical model and simulation implementation, the two aspects of the hydraulic system piping and structure were optimized and then verified by sampling device for optimal results.