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

A technology of magnetorheological fluid and swirl nozzle, applied in the direction of application, injection device, injection device, etc., can solve the problems of inconvenient and precise, cumbersome structure and control, etc., and achieve the goal of convenient operation, accuracy and simple pressure transformation scheme Effect

Active Publication Date: 2020-04-07
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] Such as figure 1 , 2 As shown, the present invention is based on the magnetorheological fluid micro-variable pressure-variable agricultural swirl nozzle mechanism, including sub-assembly magnetorheological fluid variable push rod and sub-assembly swirl nozzle structure.

[0021] The magnetorheological fluid variable push rod includes a first cover plate 1, a magnetorheological fluid bearing chamber 6, a plurality of O-rings, a spacer 3, a first energized coil 4, a second energized coil 12, and a variable pressure push rod 7. The return spring 8, the sealing spacer 11, the copper sleeve 13 and the second cover plate 15, the magnetorheological fluid is loaded in the magnetorheological fluid bearing chamber, and a plurality of O-rings include O-rings 2, O-type Sealing ring 5, O-ring 9 and O-ring 14. Wherein, the spacer 3 is installed in the rear end column hole of the magnetorheological fluid bearing cavity 6, and the first energized coil is wound on the spacer and passe...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05B1/34A01M7/00
CPCA01M7/00B05B1/341
Inventor 尹选春方伟文晟张建桃卢玉华兰玉彬
Owner SOUTH CHINA AGRI UNIV
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