Because many factors work together to cause accidents, in order to reduce vehicle accidents, first, when installing the dowty retarder, try to choose the correct dowty retarder model and adopt the correct installation method. Specifically, it should be implemented from the following aspects:
(1) For humps that have a lot of retraction operations, the speed reducers installed in the hump slipping part, the small roof group in the connecting area, and the first half of the connecting area should choose one-way speed dowty retarder or controllable speed dowty retarder as much as possible . In this way, when the vehicle is pulled back, the retarder can be locked under the surface of the steel rail, which basically has no effect on the vehicle, ensuring that the vehicle can be pulled out quickly and smoothly. In addition, you can also choose a retarder with an anti-off-line shell. This type of dowty retarder is equipped with an anti-off-line device, which can act as a wheel guard rail and can effectively prevent the vehicle from leaving the line when the dowty retarder section is running.
(2) In "Railway Vehicle dowty retarder", there is "6.11 One-sided installation of the linear line of the dowty retarder. When the outer side is installed, the cloth top side should be 5mm~8mm lower than the other side; when the inner side is installed, the cloth top side should be It is 5mm~8mm higher than the other side. However, in actual application, because the line installed on the retarder is a low-grade line, the maintenance quality of the line is sometimes difficult to guarantee. In order to avoid the superposition of various factors, the driving conditions of the vehicle will deteriorate. A strand with a drainage ditch on the side of the road generally causes the rail surface near the side of the drainage ditch to be lower than the rail on the other side. Therefore, if it is an outer roof, it should be installed on the rail close to the drain, if it is an inner roof, it should be installed on the side of the rail far away from the drain to avoid superimposition of forces.
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Executive Editor: Zhang Wen / Editor: Linda Zhang