摘要
研究了一种用于液压机械双流传动履带车辆的差速式转向机构,提出了差速转向履带车辆载荷比的计算公式和试验方案,并进行了样机试验。通过试验可知,该转向机构能够实现履带车辆任意半径的转向,在小半径转向时,不需制动功率损失即能够实现两侧履带的正、反转转向;载荷比随转向控制输入转速和转向半径变化平稳,在大半径转向时,转向半径从2.38m减小到0.6m,载荷比从1.63增加到2.64;在小半径转向时,转向半径从0.36m减小到0.25m时,载荷比从3.09增加到4.78,而转向半径为0.25m时,已经接近原地转向,差速转向履带车辆转向时的最大载荷比接近于4.78。
A new differential steering mechanism used in tracked vehicle that adopted hydro-mechanical double power has been studied. Calculating method and experimental method of steering power ratio for tracked vehicle of differential steering were presented and the model has been tested. The experiments showed that the new mechanism could realize tracked vehicle turning at random radius, and that no brake power loss when turning at small radius through two tracks rotate in reverse directions. The steering power ratio changed smoothly with inputting rotate speed and turning radius, the ratio is from 1.63 to 2.64 when radius is from 2.38 m to 0.6 m within big radius, the ratio is from 3.09 to 4.78 when radius is from 0.36 m to 0.25 m within small radius. A conclusion can be drawn that the maximum steering power ratio is approach 4.78 when tracked vehicle adopting the steering mechanism because the radius is equal to 0.25 m that approach the minimum radius in pivot steering.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2008年第8期44-47,53,共5页
Transactions of the Chinese Society for Agricultural Machinery
基金
黑龙江省科技厅攻关项目(项目编号:GB01B703-02)
关键词
履带车辆
差速式转向机构
载荷比
试验
Tracked vehicle, Differential steering mechanism, Steering power ratio, Experiment
作者简介
通讯作者
