Wireless Remote Control Design Of Walking Transplanter

With the development of automation and intelligentization of agricultural machinery,the automatic driving of rice transplanters has also received more and more attention.Under the unremitting efforts of all countries in the world,the results have been outstanding.However,research on the automatic driving of rice transplanters in the world is mainly based on riding or high-speed machines,but there are few researches on the walk-transplanter.In the conventional production process,the walk-over transplanter needs to be supported by a person to assist in the operation of the transplanter.The personnel needs to be in a poor paddy field environment for a long time,especially when the paddy field has a deep muddy foot and a large viscosity,and the labor intensity of the operator is even stronger.The situation of the operators who have long been in the paddy field is worrying due to the exponential increase in the weather conditions and the low temperature,and it is imperative to improve the operating environment of the pedestrian-operated rice transplanter.In order to reduce the cost of research and promotion,this article studies the wireless remote control of the walk-over transplanter and lays the foundation for realizing the automatic driving of the pedestrian transplanter.The main research content of this article is summarized as follows.(1)Analysis of influence of walking device of walking type transplanter on steering performanceThis paper takes Fuleiwei 2Z-455 walking rice transplanter as the research object,analyzes the conditions for the independent walking of the rice transplanter,and explains the reason why the auxiliary traveling wheel is arranged at the rear end of the rice transplanter and uses only one.On the basis of the research of the auxiliary walking device,the design adjustment was made,and the field experiment was carried out to find the problem of insufficient steering drive in the transplanter.From the two aspects of turning radius and steering torque,three kinds of self-defined steering methods for implementing the differential steering of the pedestrian rice transplanter are analyzed.It is verified by calculation that the forward and reverse type walking device can not only effectively improve the rotation of the rice transplanter Drive torque,and can get the minimum turning radius,has a significant improvement to the turning turn of the rice transplanter.(2)Design and Simulation of Forward and Reverse Walking DevicesIn order to meet the driving wheel side forward rotation,the other side at the same speed of the reverse rotation of the demand for walking transplanter of the walking device was redesigned.The power distribution axis is introduced to redistribute the power.Due to the characteristics of the transmission direction of the chain drive and gear transmission,the power can be transferred to the chain drive or the gear transmission according to the demand of the motion.The positive and reverse rotation of the driving wheel can be realized,and then the turning turn is completed,and the key components in the power distribution axis,gear transmission and sprocket drive are designed.The three-dimensional model of each part in the forward and reverse type walking device was drawn,and the assembly process was completed using Solidworks.In order to further verify the feasibility of the design,the 3D model was imported into ADAMS to be simulated.The forward and reverse type walking device can realize the switching between the chain transmission and the gear transmission in the simulation process,and then the forward and reverse switching of the driving traveling wheel can be realized.The whole simulation process Smooth,no stuck.Finally,the physical prototype was machined and assembled.(3)The realization of wireless remote control of a walk-style rice transplanterIn order to realize the wireless remote control of the walk-over transplanter,a controller with the microcontroller STC15F408 AD as the core is constructed,a wireless transmission network is constructed through the wireless transmission module AS32,and the schematic diagram of the handheld controller and the PCB board are drawn through the Altium designer.Pneumatic actuators,hydraulic actuators and electric actuators were designed.The problems of excessive load,too many power sources and complicated layout of the pneumatic actuators were analyzed.The hydraulic actuators had no suitable power source.In contrast,the electric actuating system with simple power source is selected,and the electric push rod and electromagnet of the key actuator are selected and constructed according to the demand.Through the study of the above 3 parts,the wireless remote control of the walking transplanter is realized,and the problem of insufficient steering driving force in the steering process is solved.It is of great significance for improving the operating environment of the operators and reducing the intensity of labor,and lays the foundation for the realization of the automatic driving of the walking transplanter in the future.