An automatic adjustment device for spray boom balance

Abstract

The invention provides an automatic adjustment device for spray boom balance, which includes a DC stepping motor, a fixed frame, a slide rail, a slider, a folding hydraulic cylinder, a height adjustment frame, a height adjustment hydraulic cylinder, a spray boom assembly, a rotating shaft, a large Gears, pinions, guide pulleys, guide pulley shafts, distance measuring devices and controllers. When the sprayer is working, the distance measuring device measures the distance signal between the two ends of the spray boom and the crop canopy, and sends it to the controller. The controller controls the DC stepping motor to drive the spray boom, thereby realizing the adjustment of the spray boom balance. The spray boom balance automatic adjustment device provided by the present invention not only effectively controls the movement of the spray boom on the vertical plane, but also effectively reduces the movement of the spray boom on the horizontal plane, and can be applied to slope operations to improve the uniformity of spray deposition. sex.

Description

technical field [0001] The invention relates to the field of agricultural plant protection machinery, in particular to an automatic adjustment device for spray boom balance. Background technique [0002] As an engineering equipment for chemically preventing and controlling agricultural diseases, insects, and weeds, the boom sprayer has the characteristics of high operating efficiency and easy automation. It has been widely used in countries with a high level of agricultural mechanization such as Europe and the United States. my country also focuses on supporting the research and development of high-efficiency boom sprayers in the "Eleventh Five-Year" 863 plan. When the boom sprayer is working, external incentives (such as uneven ground, acceleration of the sprayer chassis, etc.) can easily cause the spray boom to deviate from the normal motion posture, causing the movement of the spray boom to be unbalanced, causing the spray boom to produce horizontal and vertical movements...

AI Technical Summary

Problems solved by technology

[0004] In order to effectively reduce the undesired movement of the spray boom, a balance device is installed between the spray boom and the main body of the sprayer. The "ultra-wide boom spray" can reduce the irregular movement of the spray boom within a certain range and improve the uniformity of spraying. Active adjustment; the patent application number is 201010603644.1, and the name is "self-balancing boom sprayer". Although it can automatically make the boom parallel to the horizontal plane, this kind of boom sprayer uses an inclination sensor to detect the state of the boom. When working on shaped ground, the boom suspension system cannot keep the spray boom level with the crop surface, thereby reducing the uniformity of spraying; the application number is 201220690405.9, and the name is "a spray boom that can actively adjust the position and posture", although it can be automatically adjusted However, the active control of the vertical movement of the spray boom uses cable transmission, and there is a risk of slipping in the rapid adjustment of the vertical movement of the spray boom. In addition, there is a lack of effective control of the horizontal movement of the spray boom. Drug uniformity cannot be guaranteed

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