Journal of Jilin University(Engineering and Technology Edition) ›› 2022, Vol. 52 ›› Issue (8): 1943-1950.doi: 10.13229/j.cnki.jdxbgxb20210205

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Design and test of the chassis of triangular crawler reclaiming rice harvester

Shan ZENG1,2(),Deng-pan HUANG1,2,Wen-wu YANG1,2(),Wei-jian LIU1,2,Zhi-qiang WEN1,2,Li ZENG1,2   

  1. 1.College of Engineering，South China Agricultural University，Guangzhou 510642，China
    2.Key Laboratory of Key Technology on Agricultural Machine and Equipment，Ministry of Education，South China Agricultural University，Guangzhou 510642，China
  • Received:2021-03-17 Online:2022-08-01 Published:2022-08-12
  • Contact: Wen-wu YANG E-mail:shanzeng@scau.edu.cn;yangwenwu@scau.edu.cn

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Abstract:

Aiming at the problem of the current common crawler harvester harvesting first-season regenerative rice with high crushing rate and no mature regenerated rice first-season harvester products， combined with the agronomic requirements of the first-season harvesting of regenerated rice， a triangular crawler-type regenerative rice harvesting was designed. The whole structure and working principle of the chassis of the triangular crawler reclaimed rice harvester are described， the hydraulic walking system is designed， and a theoretical analysis on the performance of chassis is carried out. Field tests were carried out on the chassis of the triangular crawler regenerated rice harvester. The test results showed that the speed range of the triangular crawler regenerated rice harvester chassis in the field is 0~4.5 km/h， and the speed range of paddy field operation is 0~2.8 km/h. The minimum turning radius of paddy field driving is 1780 mm， the maximum climbing angle is 32°， and the maximum ridge height is 215 mm， which can meet the requirements of field walking in the harvesting season of regenerated rice. The actual rolling rate in the field is 31.7%， which is 21.5% lower than that of the common crawler harvester.

Key words: agricultural mechanization engineering, chassis, regenerated rice, hydraulic, harvester

CLC Number: 

  • S225.4

Fig.1

Triangular crawler reclaiming rice harvester"

Table 1

Main technical parameters of triangular caterpillar chassis for reclaiming rice harvester"

参 数数值
外形尺寸（长×宽×高）/（mm×mm×mm）5300×2680×3150
装载质量/kg4800
配套动力/kW74.5
驱动方式四轮驱动
转向方式差速转向
轮距/mm1500
轴距/mm1800
履带宽度/mm280
履带接地长度/mm800
最小离地间隙/mm600
行驶速度/（km·h-1）0~4.5

Fig.2

Hydraulic system schematic diagram"

Fig.3

Analysis of longitudinal limit overturning force of triangular caterpillar chassis of reclaiming rice harvester"

Fig.4

Analysis of force of crawler wheel over ridge of chassis of triangular crawler type reclaiming rice harvester"

Table 2

Field test results"

参 数检测结果技术要求
行驶速度/（km·h-1）0~4.50~4.5
作业速度/（km·h-1）0~2.80~2.8
最小转弯半径/mm1780≤1900
最大爬坡角度/（°）32≥30
最大越埂高度/mm215≥200
轮陷深度/mm257≤300

Fig.5

Comparison of rolling conditions"

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