英国铁路研究和发展部设计的一对交叉支撑地铁车辆转向架目前正在进行广泛的运用试验。这些试验是为发展一种能够减少在通过小半径曲线时轮缘和钢轨磨耗的新型地铁车辆转向架的试验研究计划的一部分。上述地铁车辆的交叉支撑转向架是直接由货车的交叉支撑转向架发展而来的,后者现正在肯尼亚和马来亚进行运行考验。要达到减少在小半径曲线上的磨耗,必须允许车轴取近似的径向位置。实现这一目标而无需轮对导向机构的方法之一,是配置比较软的一系回转悬挂。这样,由于存在踏 A pair of cross-supported metro vehicle bogies designed by the British Ministry of Railways Research and Development are currently undergoing extensive operational testing. These tests are part of an experimental research program to develop a new type of metro vehicle bogie that reduces the wear of rims and rails when passing small radius curves. The above-mentioned metro vehicles’ cross-bogies were developed directly from the truck’s cross-bogies, which are now running tests in Kenya and Malaya. To reduce wear on small radius curves, the axle must be allowed to assume an approximate radial position. One way to achieve this goal without the need for a wheelset steering mechanism is to deploy a softer series of slewing rings. In this way, due to the presence of tread