Design and performance analysis of soil groove test trolley in hilly and mountainous areas

doi:10.3785/j.issn.1006-754X.2025.05.101

Chinese Journal of Engineering Design

2025, Vol. 32

Issue (4): 550-561 DOI: 10.3785/j.issn.1006-754X.2025.05.101

Mechanical parts and equipment design

Design and performance analysis of soil groove test trolley in hilly and mountainous areas

Weijian LIU¹(

),Jiahao ZHANG¹,Xiaolan YU²,Donghao LI³,Yuan WANG¹,Manman LI¹,Zhaoguo ZHANG¹(

)

^1.Faculty of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming 650500, China
^2.Guizhou Provincial Agricultural Machinery Technology Extension General Station, Guiyang 550000, China
^3.College of Agriculture, South China Agricultural University, Guangzhou 510642, China

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Abstract

In response to the current problems of "no machines available, no machines easy to use" and poor agricultural production capacity in hilly and mountainous areas, the design and performance analysis of a soil groove test trolley in hilly and mountainous areas have been carried out. Firstly, the mechanical system, data acquisition system and control system of the soil groove test trolley were designed. Then, the passing ability of the soil groove test trolley was analyzed based on the RecurDyn-EDEM coupling simulation. Finally, the overall performance of the soil groove test trolley was tested and analyzed. The simulation results showed that the soil groove test trolley started to accelerate at t=0 s, and its travelling speed reached 0.7 m/s at t=2.7 s. Then, the travelling speed began to decrease sharply until the end of simulation, and the final travelling speed fluctuated around 0.1 m/s. During the simulation process, the limit spring could provide a friction force of approximately 700 N, and the resultant force of the suspension device reached 6 665 N. The simulation results preliminarily verified the rationality of the soil groove test trolley design scheme. The test results showed that the angular acceleration of the power output shaft of the soil groove test trolley was 14.74 rad/s2, and there was an error of 15 to 20 r/min between the actual rotational speed and the target rotational speed. The maximum travelling speed of the soil groove test trolley could reach 1.6 m/s, with a required braking time of 2.61 s and a corresponding braking distance of 1.62 m. When the soil groove test trolley travelled at a target speed of 0.2 m/s and was used in conjunction with a Sanqi excavation shovel for simulation test, it could reach the target speed within 2 s, and the measured maximum working resistance was 2 990.07 N. The above test data all meet the design requirements, which can provide theoretical basis and reference for the design of soil groove test trolleys in hilly and mountainous areas.

Key words： hilly and mountainous areas soil groove test trolley RecurDyn-EDEM coupling simulation performance analysis

Received: 06 January 2025 Published: 01 September 2025

CLC:

S 225.5

Corresponding Authors: Zhaoguo ZHANG E-mail: 531964726@qq.com;zzg@kust.edu.cn

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	Weijian LIU
	Jiahao ZHANG
	Xiaolan YU
	Donghao LI
	Yuan WANG
	Manman LI
	Zhaoguo ZHANG

Cite this article:

Weijian LIU,Jiahao ZHANG,Xiaolan YU,Donghao LI,Yuan WANG,Manman LI,Zhaoguo ZHANG. Design and performance analysis of soil groove test trolley in hilly and mountainous areas. Chinese Journal of Engineering Design, 2025, 32(4): 550-561.

URL:

https://www.zjujournals.com/gcsjxb/10.3785/j.issn.1006-754X.2025.05.101 OR https://www.zjujournals.com/gcsjxb/Y2025/V32/I4/550

丘陵山区土槽试验台车设计与性能分析

针对目前丘陵山区“无机可用、无机好用”以及农业生产能力差等问题，开展了丘陵山区土槽试验台车的设计与性能分析。首先，对土槽试验台车的机械系统、数据采集系统及控制系统进行了设计。然后，基于RecurDyn-EDEM耦合仿真对土槽试验台车的通过性进行了分析。最后，对土槽试验台车的整体性能进行了试验与分析。仿真结果表明：土槽试验台车从t=0 s开始加速，其行进速度在t=2.7 s时达到0.7 m/s，随后行进速度开始骤减直至仿真结束，最终的行进速度在0.1 m/s左右波动。在仿真过程中，限位弹簧能够提供大约700 N的摩擦力，悬挂装置的合力达到了6 665 N，仿真结果初步验证了土槽试验台车设计方案的合理性。试验结果表明：土槽试验台车动力输出轴的角加速度为14.74 rad/s2，其实际转速与目标转速之间存在15~20 r/min的误差；土槽试验台车的最大行进速度可达1.6 m/s，所需制动时间为2.61 s，对应的制动距离为1.62 m。当土槽试验台车以0.2 m/s为目标速度行进并搭配三七挖掘铲开展模拟试验时，其在2 s内即可达到目标速度，所测得的最大工作阻力为2 990.07 N。上述试验数据均满足设计要求，可为丘陵山区土槽试验台车的设计提供理论依据和参考。

关键词： 丘陵山区, 土槽试验台车, RecurDyn-EDEM耦合仿真, 性能分析

Fig.1 Structure diagram of soil groove test trolley in hilly and mountainous areas

Fig.2 Renderings of suspension device

Table 1 Dimensional parameters of connecting rods of suspension device

Table 2 Parameters of driving motors

Table 3 Performance parameters of hydraulic power station

Fig.3 Physical drawing of hydraulic power station

Fig.4 External dimensions of hydraulic brake-by-wire

Table 4 Basic information of hydraulic brake-by-wire

Fig.5 Data acquisition approach for soil groove test trolley

Fig.6 Simplified simulation model of soil groove test trolley

Fig.7 Grid division of suppression device and main frame models

Fig.8 Statics simulation results of soil groove test trolley and its key components

Fig.9 Schematic diagram of RecurDyn-EDEM coupling simulation

Fig.10 Coupling simulation model of soil groove test trolley

Fig.11 RecurDyn-EDEM coupling simulation environment

Fig.12 Variation curve of travelling speed of soil groove test trolley

Fig.13 Soil accumulation effect on excavation shovel

Fig.14 Force variation curve of vertical limit device

Fig.15 Force variation curve of suspension device

Fig.16 Friction force variation curves of driving wheels 1 and 2

Fig.17 Friction force variation curves of driving wheels 3 and 4

Fig.18 Physical prototype of soil groove test trolley

Fig.19 Variation curve of travelling speed of soil groove test trolley with time

Fig.20 Variation curve of rotational speed of power output shaft with time

Table 5 Braking performance test data of soil groove test trolley

Fig.21 Test site equipped with Sanqi excavation shovel

Fig.22 Report data organization results of upper computer software


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