Boom arm balance control device and control method for high ground clearance boom sprayer

Abstract

The invention discloses a balance control device and a control method for a spray boom arm of a spray boom sprayer with high ground clearance. The balance control device is provided with a balance control system, and the balance control system includes a controller, an electromagnetic damper and a sensing device and other components. When the controller judges the downward movement of the spray boom arm according to the detection signal of the sensing device, it controls the electromagnetic damper to generate a damping force that hinders the rotation of its rotor, and adjusts the electromagnetic damper in a soft stop manner according to the movement state of the spray boom arm damping force, so that the vibration of the boom arm tends to be stable; when the controller judges that the boom arm moves upward, it cuts off the power supply current of the electromagnetic damper, so that the electromagnetic damper does not generate damping force, until the speed of the upward movement of the spray boom arm until it becomes zero. The device and its control method of the invention can effectively improve the balance and stability of the boom arm of the high-ground clearance boom sprayer when it is in operation, the control is precise, the structure planning is reasonable, the manufacturing, implementation and maintenance are easy, and the utility model is suitable for popularization and use.

Description

technical field [0001] The invention relates to the technical field of agricultural plant protection machinery, and relates to a spray boom arm balance control device and method, in particular to a spray boom arm balance control device and a control method for a high clearance spray boom sprayer. Background technique [0002] As a mainstream plant protection equipment, the high clearance boom sprayer has the advantages of high efficiency, quickness and adaptability to different fields. As the main working part of the high ground clearance boom sprayer, the boom arm has the characteristics of long arm span and great flexibility. However, when the high-ground-clearance boom sprayer is working, the boom arm has a long arm span and poor stability, and is easily affected by the swing of the body and terrain changes, resulting in Roll motion and vibration in the vertical direction. A small vibration amplitude may cause the end of the boom arm to vibrate greatly, affecting the bal...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the following problems in the prior art, that is, when the current high-ground-clearance boom sprayer is working, the length of the boom arm is fixed due to the fixed length of the cable, which causes an emergency stop when the vibration is reset, resulting in greater secondary vibration, which seriously affects The effect of pesticide application

The invention provides a balance control device and control method for the boom arm of a high ground clearance boom sprayer that can solve or improve the above problems

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