Adjustable pair of roller gap surrounding wolfberry picking head

Abstract

Aiming at the problems existing in the prior art, the invention provides a wrap-around picking head with an adjustable pair of roller gaps for automatic picking of wolfberries. The wolfberry picking head includes a power supply system, a drive system, a picking head housing and a main roller arranged inside the picking head housing, and the main roller includes a forward rotating main roller and a reverse main roller. The rotating main roller and the counter rotating main roller rotate in opposite directions. The picking head also includes a transmission system and auxiliary rollers, and the auxiliary rollers include forward rotating auxiliary rollers and counter-rotating auxiliary rollers, and the forward rotating auxiliary rollers and counter-rotating auxiliary rollers rotate in opposite directions. The forward rotating auxiliary roller is arranged above the forward rotating main roller, and the reverse rotating auxiliary roller is arranged above the reverse rotating main roller. The present invention adopts forward-rotating worm gear, reverse-rotating worm gear, main rollers and auxiliary rollers to realize the restraint work on the fruit of wolfberry branches, has excellent wrapping performance on wolfberry branches, realizes all-round picking of wolfberry branches, and improves the Net fruit rate of wolfberry picking.

Description

technical field [0001] The invention belongs to the field of agricultural machinery, and in particular relates to a crop or fruit picking device, in particular to a wrap-around picking head with an adjustable pair of roller gaps for wolfberry. Background technique [0002] Lycium barbarum is not only a traditional precious Chinese herbal medicine, but also a nutritional tonic. According to official statistics, in Gansu alone in 2012, the output of wolfberry reached 35,000 tons. Due to the characteristics of high water content and delicate peel of wolfberry fruit when it is ripe, it is easy to be damaged when picking; if it is damaged, it will not only affect its appearance and color, but also reduce its medicinal value. Due to the complexity of wolfberry growth and the unstructured farmland environment, there is no commercialized wolfberry automatic picking head on the market. The existing ones are simple hand-held wolfberry pickers, picking heads and vibrating pickers. ...

AI Technical Summary

Problems solved by technology

Due to the characteristics of high water content and delicate skin when the fruit of wolfberry is ripe, it is easy to damage when picking; if it is damaged, it will not only affect its appearance and color, but also reduce its medicinal value

Due to the complexity of wolfberry growth and the unstructured farmland environment, there is no commercialized wolfberry automatic picking head on the market. The existing ones are simple hand-held wolfberry pickers, picking heads and vibrating pickers.

[0003] The picking head in the prior art includes a power supply, a drive system and rollers, wherein the rollers only include two counter-rotating rollers; the problems that exist are (1) it is necessary to manually pull the Lycium barbarum branches to the picking head, and manually Apply external force to make the branches and rollers as close and parallel as possible; (2) It is necessary to manually disturb the branches of Lycium barbarum to make the fruit droop between the two rollers. However, some fruits cannot droop due to branches, leaves and thorns, so it is difficult to pick in all directions Lycium barbarum on the branches is easy to leak fruit and cause losses; (3) the gap between the rollers cannot be adjusted according to the Lycium barbarum branches of different ages

[0004] Invention patent application CN201010272425 discloses "a hand-held wolfberry picking machine". This kind of equipment also requires the participation of picking personnel, which is very limited in improving the automation of wolfberry picking

The picking head is small, light, and low in cost, and can better select green and red fruits without damaging branches and leaves, but it still has the following problems: (1) The picking head is directly installed on the electric drill, so the vibration is too large, and it is easy to damage the branches of Chinese wolfberry. Damage occurs; (2) It is necessary to manually pull the wolfberry branches to the picking head, and manually apply external force to make the branches and rake claws as close and parallel as possible; (3) The wolfberry fruit will naturally droop, and most fruits cannot enter the gap between the rake claws , leading to a reduction in the actual working area of ​​the picking head, making it difficult to pick wolfberry on the branches in all directions, and it is easy to miss fruit and cause losses; (4) it belongs to cutting picking, which seriously damages the fruit

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