关键词: 平行四杆机构, 蓝牙遥控, 静滑动摩擦系数, 测量装置

Abstract: ： For rapid, accurate and easily measure static sliding friction coefficient of different agricultural materials, combined with the Arduino UNO MCU and bluetooth remote control technology, developed a kind of mobile phone bluetooth wireless remote control based on parallel four-bar linkage grain friction coefficient measurement device automatically. The results showed that compared with conventional measuring equipment verify that the device can quickly, easily and accurately measure the different agricultural material relative to the material plane of static sliding friction Angle and coefficient of friction, can be chosen for the seed selection, litter eye, power to choose, and various cleaning components, as well as the kind of guide plate Angle type, type of hole and slot Angle on the location and transportation, shipping parts design provides the necessary basic parameters. For rapid, accurate and easily measure static sliding friction coefficient of different agricultural materials, combined with the Arduino UNO MCU and bluetooth remote control technology, developed a kind of mobile phone bluetooth wireless remote control based on parallel four-bar linkage grain friction coefficient measurement device automatically. The measuring principle, theoretical analysis, design of motion mechanism and integrated design of control module of the device are described. Beans, coriander, green vegetables and spinach seeds were selected for the experiment. Compared with conventional measuring equipment verify that the device can quickly, easily and accurately measure the different agricultural material relative to the material plane of static sliding friction Angle and coefficient of friction, can be chosen for the seed selection, litter eye, power to choose, and various cleaning components, as well as the kind of guide plate Angle type, type of hole and slot Angle on the location and transportation, shipping parts design provides the necessary basic parameters.

Key words: parallel four-bar mechanism, bluetooth remote control, static sliding friction coefficient, measurement device