Agricultural swirl nozzle mechanism based on magnetorheological fluid micro-motion pressure change

Abstract

The invention relates to the field of agricultural pesticide liquid nozzles, in particular to an agricultural swirl nozzle mechanism based on magnetorheological fluid micro-motion pressure change. Theagricultural swirl nozzle mechanism comprises a magnetorheological fluid variable push rod and a swirl nozzle structure. The magnetorheological fluid variable push rod comprises a magnetorheologicalfluid bearing cavity, a spacer bush, a first electrifying coil, a second electrifying coil, a pressure change push rod and a sealing spacer bush, wherein the spacer bush is arranged in a rear end column hole of the magnetorheological fluid bearing cavity, the first electrifying coil is wound on the spacer bush, the sealing spacer bush is arranged in a front end column hole of the magnetorheological fluid bearing cavity, and the second electrifying coil is wound outside the sealing spacer bush; and the side, provided with the piston, of the pressure change push rod is located in the magnetorheological fluid bearing cavity and provided with a reset spring. A swirl spool of the swirl nozzle structure is arranged in a swirl chamber, the swirl chamber is arranged at the front end of a liquid passing cavity, and the liquid passing cavity is arranged on the magnetorheological fluid bearing cavity. The mechanism utilizes the state change of magnetorheological fluid under the action of a magnetic field to cause the pressure change of the magnetic flow bearing cavity, and the pressure change push rod is pushed to move outwards, and the flow and the spraying particle size of pesticide liquidcan be conveniently and accurately controlled.

Description

technical field [0001] The invention relates to the field of pesticide liquid agricultural nozzles, in particular to an agricultural nozzle mechanism applying magnetorheological fluid to micro-motion variable pressure. Background technique [0002] With the development of agricultural modernization, ultra-low volume precision spray technology can improve the utilization rate of pesticides and reduce the amount of pesticides used. In practice, different environments often require different spray particle sizes of pesticide liquid. Most of the existing pesticide liquid sprays need to manually adjust the pressure to spray, which is not convenient and accurate enough. However, the existing automatic control and pressure regulating spraying device has complicated structure and control. As an emerging material, magnetorheological fluid can achieve fast control, low time lag, and is safe and reliable. Using magnetorheological fluid to achieve variable pressure to change the part...

AI Technical Summary

Problems solved by technology

Most of the existing pesticide liquid sprays need to manually adjust the pressure to spray, which is not convenient and accurate enough

However, the existing automatic control and pressure regulating spraying device has complicated structure and control.

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