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Technical equipment testing

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Volume 76 / No. 2 / 2025

Pages : 187-198

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DESIGN AND TESTING OF HYDRAULIC DRIVE SYSTEM FOR CRAWLER-TYPE TIGER-NUT HARVESTER

履带式油莎豆收获机液压驱动行走系统的设计与试验

DOI : https://doi.org/10.35633/inmateh-76-17

Authors

Zhe QU

College of Mechanical and Electrical Engineering,Henan Agricultural University

Jianhao ZHANG

College of Mechanical and Electrical Engineering,Henan Agricultural University

Jintao LE

College of Mechanical and Electrical Engineering,Henan Agricultural University

Xilong WANG

College of Mechanical and Electrical Engineering,Henan Agricultural University

Haihao SHAO

College of Mechanical and Electrical Engineering,Henan Agricultural University

Huihui ZHAO

College of Mechanical and Electrical Engineering,Henan Agricultural University

Zhijun LV

College of Mechanical and Electrical Engineering,Henan Agricultural University

(*) Wanzhang WANG

College of Mechanical and Electrical Engineering,Henan Agricultural University

(*) Corresponding authors:

wangwz@126.com |

Wanzhang WANG

Abstract

Tiger-nut is widely cultivated in sandy soils across China, and the mechanization level for harvesting remains low. Harvesters are mainly medium- and small-sized tractor-drawn models, which exhibit weak driving capability, a large turning radius, and poor stability. This paper presents the design of a crawler-type tiger-nut harvester hydraulic-driven travel system, with the required hydraulic motor displacement of 44.65 mL∙r-1 and hydraulic pump displacement of 44.58 mL∙r-1. Experimental results from the harvester showed that the harvester’s linear travel deviation rate ranged from 1.19% to 2.10%, with an average travel speed of 1.08 m∙s-1 and the average value of radius for forward left turn and forward right turn is 2740 mm and 2748 mm. The harvester can achieve bidirectional stepless speed regulation in the field, ensuring stable harvesting performance and meeting the design requirements for the tiger-nut harvester.

Abstract in Chinese

油莎豆多种植于中国的沙土地,目前油莎豆机械化收获水平低,现有收获机以中小型牵引式为主,存在驱动能力弱、转弯半径大和行驶稳定性差等问题。本文设计了一种履带式油莎豆收获机液压驱动行走系统,计算得出所需的液压马达排量为44.65 mL∙r-1,液压泵排量为44.58 mL∙r-1。样机试验结果表明:收获机直线行走偏移率为1.19%-2.10%,平均行走速度为1.08 m∙s-1,前进左转和前进右转的半径平均值分别为 2740 mm和 2748 mm。收获机在田间能够实现双向无级调速,收获作业性能稳定,满足油莎豆收获机设计要求。

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