机械变速拖拉机牵引试验特性研究和分析
Research and Analysis of Tractor Traction Test Characteristics with Mechanical Transmission
李云飞 1丁志欣 2史增录 1张学军 1王德全3
作者信息
- 1. 新疆农业大学 机电工程学院,乌鲁木齐 830052
- 2. 新疆农业大学 机电工程学院,乌鲁木齐 830052;新疆维吾尔自治区农牧业机械产品质量监督管理站,乌鲁木齐 830054
- 3. 新疆维吾尔自治区农牧业机械产品质量监督管理站,乌鲁木齐 830054
- 折叠
摘要
牵引试验是农业拖拉机试验鉴定中最重要的试验之一,且牵引功率是衡量拖拉机动力性能和经济效益的重要技术指标.为此,对不同档位下拖拉机行驶速度、牵引功率、牵引力和滑转率等参数进行测量,结合测量得到的数据结果绘制参数关系曲线图,分别绘制了牵引力和行驶速度、牵引功率和行驶速度、牵引力和驱动轮滑转率、牵引功率和牵引比油耗的曲线变化图.同时,运用数学运算得出各参数间一次线性和二次多项式的拟合方程,对比决定系数R2 值,得出最真实的回归方程.试验结果表明:得出的回归方程对研究农业拖拉机牵引功率试验有一定的指导和应用价值,可对牵引功率试验中的测量参数进行提前预测.
Abstract
Traction test is one of the most important tests in agricultural tractor test and appraisal,in which traction power is an important technical index to measure tractor power performance and economic benefits.In this paper,the parameters of tractor running speed,traction power,traction force and slip rate at different gears are measured,and the curve dia-gram of parameter relationship is drawn based on the measured data results.The curve change diagram of running speed and traction force,running speed and traction power,traction force and driving wheel slip rate,traction specific fuel con-sumption and traction power are drawn respectively.By analyzing the change relationship between parameters,the fitting equations of linear and quadratic polynomial between parameters are obtained by mathematical operation,and the most re-al regression equation is obtained by comparing the value of the coefficient of determination R2.The final test results show that the regression equation has certain guidance and application value for the study of agricultural tractor traction power test,and can predict the parameters in the traction power test in advance.
关键词
拖拉机/牵引试验/牵引功率/拟合曲线/机械变速Key words
tractor/traction test/traction power/fit curve/mechanical transmission引用本文复制引用
出版年
2025
国家科技期刊平台
NSTL
万方数据