基于OECD规则试验报告的轮式拖拉机牵引性能研究
Tractive Performance of Wheeled Tractor Based on OECD Code Test Reports
王扬光 1韩晓荣 2王庆厚 1刘德普1
作者信息
- 1. 农业农村部农业机械化总站,北京 100122
- 2. 山东潍坊鲁中拖拉机有限公司,山东 潍坊 261021
- 折叠
摘要
拖拉机是农机工业的核心,牵引性能是拖拉机的重要性能之一.对OECD规则试验报告牵引性能研究分析表明,四轮驱动、无配重状态下,85.1%的拖拉机最大牵引力比值>400 N/kW、86.5%的拖拉机最大牵引功率百分比>75%、最大牵引比油耗平均值 274.59 g/(kW·h).重型拖拉机牵引性能优于大型拖拉机,也优于中型拖拉机.94.6%的拖拉机最小使用比质量>44 kg/kW、最小使用比质量 50～55 kg/kW是发挥拖拉机牵引性能最优区间.不同换挡方式影响拖拉机牵引性能,无级变速传动拖拉机最大牵引力比值更大,动力换挡传动拖拉机最大牵引比油耗更低,二者牵引性能均优于机械传动式拖拉机.
Abstract
Tractor is core of agricultural machinery industry,and tractive performance is one of important performance of tractor.Through research on tractive performance of OECD code test reports,it was shown that,under four-wheel drive and no counterweight conditions,85.1%of tractors have a maximum traction ratio greater than 400 N/kW,86.5%of tractors have a maximum traction power percentage greater than 75%,and average maximum traction ratio fuel consumption was 274.59 g/(kW·h).Heavy tractors have bet-ter traction performance than large tractors and also better than medium-sized tractors.94.6%of tractors have a minimum usage specific mass greater than 44 kg/kW,and a minimum usage specific mass of 50 kg/kW to 55 kg/kW was optimal range for maximizing tractor traction performance.Different gear shifting methods affected traction performance of tractors.The maximum traction ratio of continu-ously variable transmission tractors was greater,and the maximum traction ratio fuel consumption of power shift transmission tractors was lower.Both traction performance was better than mechanical transmission tractors.
关键词
轮式拖拉机/牵引性能/牵引功率/动力换挡/OECD规则Key words
wheeled tractor/tractive performance/drawbar power/power shift transmission/OECD code引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
维普
万方数据