Design and experiment on portable self-propelled tea picker

doi:10.3969/j.issn.1004-1524.20221118

Acta Agriculturae Zhejiangensis ›› 2023, Vol. 35 ›› Issue (9): 2233-2239.DOI: 10.3969/j.issn.1004-1524.20221118

• Biosystems Engineering • Previous Articles Next Articles

Design and experiment on portable self-propelled tea picker

YU Guohong¹(), ZHENG Hang¹, YE Yunxiang¹, XUE Xianglei¹, FU Tong²

1. Institute of Agricultural Equipment, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
2. School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China

Received:2022-07-29 Online:2023-09-25 Published:2023-10-09

Abstract

Abstract:

In order to solve the problems that the current double hand-lifted tea picker need to be equipped with a large number of operators and the use comfort was poor, a portable self-propelled tea picker suitable for hilly and gentle slope terraced tea gardens was investigated. Its basic structure and working principle of the whole machine were explained, and its key components such as crawler chassis, tea-picking lifting mechanism, hydraulic transmission system and so on were designed and analyzed. Field tea picking experiments were carried out to test the performance of the prototype. The results showed that the fresh leaves under the integrity was more than 81.1%, processable tea rate was more than 93.7%, measured tea machine loss rate was less than 0.82%, measured tea machine leakage rate was less than 0.77%. The portable self-propelled tea picker had a good performance, which meet the requirements of tea farmers for picking.

Key words: tea, tea picker, hydraulic system, motion analysis, experiment

CLC Number:

S225.99

YU Guohong, ZHENG Hang, YE Yunxiang, XUE Xianglei, FU Tong. Design and experiment on portable self-propelled tea picker[J]. Acta Agriculturae Zhejiangensis, 2023, 35(9): 2233-2239.

Figures/Tables 7

Fig.1 Structure diagram of tea picking machine 1, Track chassis; 2, Frame; 3, Bag receiving device; 4, Lifting device; 5, Lifting hand crank device; 6, Hydraulic power train; 7, Picking device; 8, Ride seat.

Fig.2 Lifting mechanism model diagram 1, Frame; 2, Rail; 3, Screw; 4, Slider; 5, Bevel gear set; 6, Hand lifter.

Fig.3 The principle of walking hydraulic system

Fig.4 Cutting diagram of reciprocating double action blade

Fig.5 Picture of tea garden in experimental section

Fig.6 Tea picking machine field test

Table 1 Performance results of tea picking machine %

序号 No.	完整率 Complete rate	可制茶率 Processable tea rate	损失率 Loss rate	漏采率 Leakage rate of acquisition
1	83.0	93.5	0.72	0.67
2	81.8	94.3	0.85	0.86
3	78.5	93.4	0.88	0.79
平均Average value	81.1	93.7	0.82	0.77

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Design and experiment on portable self-propelled tea picker

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