后轮驱动轮式拖拉机牵引特性测试及分析

Test and Analysis on the Traction Feature of Rear Wheel Drive Tractors

牵引特性是拖拉机的主要动力性能指标和经济性能指标,以铁牛55和铁牛654拖拉机作为牵引车和载荷车进行试验,测定了拖拉机常用作业挡位时的牵引特性参数:挂钩牵引力与滑转率、实际速度、牵引功率的关系。按工作挡位将试验数据样本分组,应用MatLab对牵引力记录曲线进行图像处理和数据采样,根据所得数据绘制并分析了滑转率、实际速度和牵引功率随挂钩牵引力变化的关系。所得结论对铁牛55型等同类机型拖拉机的使用操作提供了理论和技术参考。

In this paper, Tieniu-55 and Tieniu-654 tractors are used as the traction and load test vehicle separately. The traction feature parameters including traction force, slip ratio, actual velocity and traction power, have been measured when the tractor work in general shift. The sample is grouped according to the work shift, the image＇progressing and sampling to the traction record curve is carried out using the Matlab software. The relations of traction force with slip ratio, actual velocity and traction power have been analyzed. The theory reference has been provided for the practical operation of the same types of tractors with Tieniu-55.