Negative pressure and torsion spring joint-active fruit picker

Abstract

A negative pressure and torsion spring joint-active fruit picker is characterized in that the front bottom of a cylinder is provided with an opening, a spherical arc blade is connected to the front end of the cylinder, the bottom of the cylinder is provided with a square opening, and a fixed guide rail is provided at the square opening and connected with a negative pressure suction pipe. A sucker is driven by negative pressure generated by the negative pressure suction pipe to suck a fruit on a tree; meanwhile, a telescopic motor drives a threaded suction pipe to guide the fruit to the cylinder through a gear pair; when the fruit approaches to the cylinder, a servo motor which tensions a torsion spring is powered off, restoring force of the torsion spring drives the spherical arc blade to rotate, the pedicel of the fruit positioned is cut by great impact generated, air supply to the negative pressure suction pipe is stopped, the cut fruit separates from the sucker and falls into a conveying bag under the gravitational action. The sucker is used to suck the fruit, and the restoring force of the torsion spring drives the spherical arc blade to cut the pedicel of the fruit; the negative pressure and torsion spring joint-active fruit picker is especially suitable for round fruits with highly lignified pedicels, on crowned trees such as citrus trees, apple trees, pear trees and peach trees.

Description

technical field [0001] The invention relates to the field of agricultural tools in mechanical design, in particular to a fruit picking device with combined action of negative pressure and torsion spring. Background technique [0002] At present, in the production of fruits and vegetables, the efficiency of picking is low, the cost is high, and the quality of picking directly affects the storage, processing and sales of fruits and vegetables. For example, when fruit farmers pick citrus, they generally use manual scissors to pick it, which is time-consuming and laborious. With the aging of the population and the transfer of young and middle-aged laborers from rural areas to cities, there is an urgent need for automated picking equipment. At present, fruit and vegetable picking robots at home and abroad have achieved great development, but their main working targets are mostly tomatoes, cucumbers, eggplants, cherries, strawberries, apples and mushrooms with soft fruit stems, w...

AI Technical Summary

Problems solved by technology

At present, fruit and vegetable picking robots at home and abroad have achieved great development, but their main working targets are mostly tomatoes, cucumbers, eggplants, cherries, strawberries, apples and mushrooms with soft fruit stems, while citrus fruit stems are short and woody. The degree of woodiness is high, relatively hard, and many fruits are hidden in the dense leaves, so how to design a device that can automatically capture and cut highly lignified fruit stems is one of the difficulties in realizing automatic fruit picking

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