液压挖掘机挖掘阻力特性研究

doi:10.12068/j.issn.1005-3026.2015.04.021

东北大学学报:自然科学版 ›› 2015, Vol. 36 ›› Issue (4): 551-556.DOI: 10.12068/j.issn.1005-3026.2015.04.021

液压挖掘机挖掘阻力特性研究

任志贵¹，陈进¹，王树春²，庞晓平¹

(1.重庆大学机械传动国家重点实验室，重庆400030； 2.三一重机有限公司，江苏昆山215300)

收稿日期:2014-04-23 修回日期:2014-04-23 出版日期:2015-04-15 发布日期:2014-11-07
通讯作者: 任志贵
作者简介:任志贵(1985-)，男，陕西汉中人，重庆大学博士研究生；陈进(1956-)，男，重庆人，重庆大学教授，博士生导师.
基金资助:
国家自然科学基金资助项目(51475056)；江苏省科技成果转化专项基金资助项目(BA2009071).

Resistance Characteristics of Hydraulic Excavator

REN Zhi-gui¹， CHEN Jin¹， WANG Shu-chun²， PANG Xiao-ping¹

1.State Key Laboratory of Mechanic Transmission， Chongqing University， Chongqing 400030， China; 2.SANY Heavy Industry Co.， Ltd.， Kunshan 215300， China.

Received:2014-04-23 Revised:2014-04-23 Online:2015-04-15 Published:2014-11-07
Contact: REN Zhi-Gui
About author:-
Supported by:
-

摘要/Abstract

摘要： 基于3种常用挖掘方式，研究并得到单次挖掘过程中挖掘阻力随时间和挖掘轨迹的变化规律.对比多次实验结果得到阻力系数和阻力矩系数在挖掘过程不同阶段的分布情况，基于方向角变化规律研究各构件运动对挖掘阻力方向的影响.基于统计学原理计算出阻力系数、阻力矩系数、阻力角和差值角在挖掘阻力不同取值范围内的分布特性、主值区间和概率密度，为理论挖掘力的计算、工作装置的设计和优化奠定基础.

关键词: 液压挖掘机, 挖掘阻力, 阻力角, 主值区间, 概率密度

Abstract: Based on three kinds of conventional digging patterns， the variation regularities of digging resistance with time and digging trajectory in a single digging process were studied. The characteristics of the resistance coefficient and the resistance moment coefficient in different stages of the digging process were obtained， which were based on the comparison of multiple experimental results. Based on the variation regularities of direction angles， the impact of each component motion on digging resistance direction was investigated. The distribution characteristics， the main value range and the probability density of the resistance coefficient， the resistance moment coefficient， the resistance angle and the difference angle in different value range of digging resistance were calculated on the basis of the statistical theory. The results lay a foundation for calculation of theoretical digging force and design and optimization of device.

Key words: hydraulic excavator, digging resistance, resistance angle, main value range, probability density

中图分类号:

TH621

任志贵，陈进，王树春，庞晓平. 液压挖掘机挖掘阻力特性研究[J]. 东北大学学报:自然科学版, 2015, 36(4): 551-556.

REN Zhi-gui， CHEN Jin， WANG Shu-chun， PANG Xiao-ping. Resistance Characteristics of Hydraulic Excavator[J]. Journal of Northeastern University Natural Science, 2015, 36(4): 551-556.

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液压挖掘机挖掘阻力特性研究

Resistance Characteristics of Hydraulic Excavator

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