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根据现有规范新设计的车辆应当能在连挂状态下自由地进入 R=150米曲线区段,并且能以限定的速度通过 R=80～100米的曲线区段。但是在厂内线路上,情况更不利,这时,允许的最小曲线半径等于70米,而且没有护轨装置,此外,曲线和直线或者两曲线之间也可以没有过渡曲线。本文作者根据车钩在其旋转平面内允许的最大偏倚状态拟定了一个精确计算法,用这个方法可以检验连挂车辆能否通过各种曲线区段。所谓连挂车辆能自由地进入曲线区段,从对车钩的限制情况看,就是指连挂车辆沿曲线通过时没有利用钩尾框的偏移,而所谓能以限定的速度通过曲线区段,就是指它利用了钩尾框的偏倚(图1)。
Newly designed vehicles according to the existing specifications should be able to freely enter the R = 150m curve section while in the linked condition and pass through the R = 80-100m curve section at a defined speed. However, on in-plant lines, the situation is even more unfavorable. In this case, the minimum allowable curve radius is equal to 70 m and there is no guard rail arrangement. In addition, there may be no transition curve between curves and straight or two curves. The author of the paper developed an accurate calculation method based on the maximum allowable deflection of the coupler in its plane of rotation. This method can be used to test whether the trailer can pass through various curved sections. The so-called even with the vehicle can freely enter the curved section, from the constraints of the coupler, it means that even when linked vehicles along the curve does not make use of hook yoke offset, and the so-called can limit the speed through the curve segment, It means that it utilizes the yoke bias (Figure 1).