油菜钵苗移栽机平厢成穴装置设计与试验

doi:10.13229/j.cnki.jdxbgxb.20230558

Abstract

Abstract:

In order to solve the problems of large differences between hole size and theoretical size， as well as low hole stability caused by the uneven soil surface and soil entry and exit methods of the current hole-forming machine of rapeseed transplanting machine. a flat surface and hole-forming machine for rapeseed bowl seedling transplanting machine was designed based on the agronomic requirements of rapeseed bowl seedling planting and the external dimensions of the bowl seedling， including flat surface device and hole-forming machine. The motion trajectory of the hole forming machine was analyzed by using Matlab software， and the parameter equation of the motion trajectory was obtained in this paper， verifying the theory of "zero speed time period" of the hole-forming machine during the hole forming operation process. The field test was designed to verify the performance of the complete machine. It was found that the flatness of the chamber surface was 1.93 mm， the coefficient of variation of the hole taper was 2.7%， the qualified hole rate was 98.1%， and the hole formation frequency was 107 holes per min， when tractor forwarded speed at 1.62~1.81 km/h. All indicators met the agronomic requirements of rapeseed pot seedling transplantation. This study can provide a reference for the design and optimization of flat chamber hole-forming machine for rapeseed bowl seedling transplanting machine.

Key words: agricultural machinery, zero-speed hole forming, rape seedings, transplanting, planting hole

CLC Number:

S223.9

La-zhen QUAN,Fang-gang SHI,Wei QUAN,Ming-liang WU,Yuan-hao HUANG,Wei XIANG. Design and experiment of flat surface and hole⁃forming machine for rapeseed potted seedlings[J].Journal of Jilin University(Engineering and Technology Edition), 2025, 55(3): 1111-1122.

Figures/Tables 15

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参数	数值
挂接方式	三点悬挂
外形尺寸（长×宽×高） /mm×mm×mm	2 000×1 300×1 000
整机质量/kg	200
作业幅宽/mm	750
成穴频率/min	107
成穴行数	2
配套动力/kW	20~30
作业速度/（km·h^-1）	1.68
成穴效率/（hm²·h^-1）	0.8

试验号	工作时间/s	穴距 /mm	孔穴上圆直径/mm	孔穴下圆直径/mm	实际孔穴深度/mm	孔穴锥度/（°）	锥度变异系数/%	厢面平整度S_d/mm	合格孔数	成穴合格率/%
均值	22.4	260.0	85.3	40.2	70.4	17.8	2.7	1.93	39.3	98.1
1	21.9	260.5	84.5	40.0	69.5	17.8	2.7	1.58	39	97.5
2	22.3	258.5	85.5	40.5	70.2	17.8	2.3	2.11	40	100
3	23.0	260.0	86.2	40.2	71.5	17.9	3.6	2.04	38	95
4	22.2	261.0	85.0	40.2	70.5	17.6	2.1	2.00	40	100

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Design and experiment of flat surface and hole⁃forming machine for rapeseed potted seedlings

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