Mechanism of agricultural swirl nozzle based on magnetorheological fluid micro-motion variable pressure

Abstract

The invention relates to the field of pesticide liquid agricultural nozzles, which is an agricultural swirl nozzle mechanism based on magnetorheological fluid micro-movement variable pressure, including magnetorheological fluid variable push rod and swirl nozzle structure; magnetorheological fluid variable push rod includes The magnetorheological fluid bearing cavity, the spacer, the first energized coil, the second energized coil, the pressure transformation push rod and the sealing spacer, the spacer is installed in the rear end column hole of the magnetorheological fluid bearing cavity, and the first energized coil is wound On the spacer, the sealed spacer is placed in the front-end column hole of the magnetorheological fluid bearing chamber and the second energized coil is wound outside; the side of the pressure-transforming push rod with the piston is in the magnetorheological fluid bearing chamber and is equipped with a reset Spring; the swirl spool of the swirl nozzle structure is loaded into the swirl chamber, the swirl chamber is installed at the front end of the liquid passage chamber, and the liquid passage chamber is installed on the magnetorheological fluid bearing chamber. The mechanism uses the state change of the magnetorheological fluid under the action of the magnetic field to cause the pressure change of the magnetic flow bearing chamber to push the pressure changing push rod to move outward, so as to conveniently and accurately control the flow rate of the pesticide liquid and the sprayed particle size.

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...

Images