影响半步行弹性轮驱动力主要因素的试验研究

Testing Study of the Factors Affecting Driving Force of Semi-Step Walking Elastic Wheel

半步行弹性轮是一种提高小型轮式拖拉机附着性能的新型装置。本文采用三元正交多项式回归设计方法,在室内土槽中对影响弹性轮驱动力主要因素进行了试验研究,得出了驱动力与滑转率、附着重量、剪切长度的回归方程。试验结果表明,滑转率在12％～20％范围内,驱动力可得到较大值,附着重量与驱动力基本成线性关系,剪切长度以14cm为宜。

Semi-step walking elastic wheel is a kind of new device used to improve the adhesive capability of small-sized tractor. The main factors affecting the driving force of elastic wheel were tested in the in-lab soil using triple regression multinomial designing method. Regression equations of driving force and sliding rate, adhesive weights as well as shear length were established thereby to provide a theoretical base for the design and utilization of the elastic wheel. Testing results showed that when sliding rate ranges 12%~ 20%, the greater driving force can be obtained; and adhesive weights are basically in the leanear relation with driving force. Also, it is better to select the shear length of 14 cm.