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履带式果园作业平台结构稳定性分析与研究OA

Analysis and Research on Structural Stability of Tracked Orchard Operation Platform

中文摘要英文摘要

绝大多数果园主要以丘陵山地矮砧密植种植模式为主,其地形及地势特征存在操作难题,故对履带式果园作业平台的稳定性进行分析具有重要的意义,能够帮助作业者顺利完成果园作业疏花疏果、剪枝、收获、套袋等一系列作业.为此,对履带式果园作业平台进行坡面行驶稳定性力学分析,通过计算得出作业平台不倾翻的角度范围.分析结果表明:当坡面角度固定时,履带式果园作业平台的稳定性取决于相关性能参数的取值,设计的履带式果园作业平台稳定性安全装置能够满足稳定性要求.通过试验测得:果园作业平台无载重条件下的行走速度为低速 0.352m/s、高速 0.722m/s,履带式果园作业平台升降高度≤1.2m,最大承载负荷≤500kg,液压杆升降速度 0.05m/s.通过爬坡性能试验可知:随着坡度角逐渐增大,履带式果园作业平台行驶的时间逐渐变长,爬坡速度逐渐变得缓慢;在试验过程中,履带式果园作业平台能够正常运行,且能正常行驶通过 3 种不同的坡度角.但是,当行驶在 30°坡面时作业平台速度变慢并且出现抖动,出现略微打滑现象;在工作正常运行的情况下,履带式果园作业平台能够通过的最大坡度角为 30°.

The vast majority of orchards are mainly planted with low rootstocks in Hilly and mountainous areas.There are operational problems in the terrain and terrain characteristics of Hilly and mountainous orchards.It is of great significance to analyze the stability of tracked orchard operation platform.It can help operators successfully complete a series of opera-tions such as flower and fruit thinning,pruning,harvesting,bagging and so on.In this paper,the mechanical analysis and Research on the slope driving stability of the tracked orchard operation platform are carried out,and the angle range of the operation platform is calculated.When the slope angle is fixed,the stability of tracked orchard operation platform depends on the value of relevant performance parameters.The stability safety device of crawler orchard operation platform can meet the stability of operators.The test shows that the measured no-load walking speed of orchard operation platform is about 0.352 M/s at low speed and 0.722 M/s at high speed.The lifting height of crawler orchard operation platform is≤1.2 m.Maximum bearing load≤500 kg.The lifting speed of hydraulic rod is 0.05 M/s.According to the climbing performance test,with the gradual increase of slope angle,the driving time of tracked orchard operation platform gradual-ly becomes longer and the climbing speed gradually becomes slower.During the test,the crawler orchard operation plat-form can operate normally.It can drive normally through three different slope angles.However,when driving on a 30° slope,the working platform slows down and shakes,resulting in slight slip.Under the condition of normal operation,it is known that the maximum slope angle that the crawler orchard operation platform can pass through is 30°.

刘伟起;刘洪杰;史璐;杨欣;李建平;王鹏飞

河北农业大学 机电工程学院, 河北 保定 071000

农业工程

矮砧密植果园;果园作业平台;履带式;稳定性

dwarf rootstock dense planting orchard;orchard operation platform;tracked;stability

《农机化研究》 2024 (004)

42-47 / 6

河北省重点研发计划项目(19221902D);国家现代农业产业技术体系建设专项(CARS-27);河北省现代农业产业技术体系水果创新团队项目(HBCT2018100205)

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