论文部分内容阅读
英国铁路德比研究中心设计了一种人工操纵的摩擦计,用作测量线路上常常发生车轮空转和滑行的地方的粘着力。该摩擦计主体是备有一组蓄电池和两个走行轮及导向轮的小推车。在小推车前面的机架上装有一个直径为75毫米的低碳钢摩擦计滚轮,可随意调整其在轨面任一部位上滚动。这种摩擦计是利用固定在推车上的车把沿轨道向前推进的。当摩擦计工作时,通过对摩擦计滚轮制动到发现轮子滑行,即可完成测量。制动力矩的测量是通过对一电离合器通以电流,使摩擦计滚轮和反作用滑轮配合,利用金属拉索使转动受到限制而实现的。操作者可通过
The Derby Research Center at the British Rail designed a manually operated friction meter that measures the adhesion of wheels where the wheels often slip and glide on the line. The main body of the friction meter is a small cart equipped with a set of batteries and two running wheels and guide wheels. In front of the cart on the rack is equipped with a diameter of 75 mm low-carbon steel friction meter roller, can be adjusted at any position on the rail rolling. This friction meter is fixed on the cart using the handlebar along the track forward. When the friction meter is working, the measurement can be completed by braking the friction roller to find the wheel gliding. Braking torque is measured by an electric clutch through the current, the friction meter roller and the reaction pulley, the use of metal cable so that the rotation is limited to achieve. The operator can pass