Reasons for the failure of railroad fish plate

Edit:Zongxiang Heavy Industry--Elina Date:2021-12-22 16:15:43

In winter, the temperature is low, and the use of batteries or other mechanical equipment will be affected to a certain extent. Especially for railway equipment, the rails are composed of many cast iron parts. If these parts are not properly maintained during use , It will directly affect the normal operation of the train, especially when it is snowing. If the snow on the rail is not removed in time, when the snow freezes, it will cause a malfunction of the train on the rail. Let's take a look at the reasons for the failure of the railroad fish plate in winter.

The status of the interaction between the tail plate and the rail, the actual load on the plywood and the material of the plywood determine the location, time, method and speed of the plywood damage, which will affect the normal function of the plywood. The interaction status mainly affects the normal function of the plywood. The location and time of the origin of the crack, the load condition and the material condition more determine the mode and rate of crack propagation. When the crack starts from the top of the plywood, the tensile stress is less, so the initiation and propagation are more affected by the material; when the plywood cracks from the bottom, the tensile stress is greater, and the initiation is more Expansion is more affected by load. The season is also an important factor for the failure of the railroad fish plate. Judging from the situation of on-site use, the plywood breakage in winter is obviously more than that in other seasons.

The fracture of the railroad fish plate in winter may be related to the change of the rail seam in winter. The increase of the rail seam in winter will increase the tensile stress of the road splint, especially the middle part of the third and fourth bolt holes. This additional stress will cause an increase in the number of splint failures. However, due to the lack of systematic data on the magnitude of this additional stress, the influencing factors and the threat to the life of the splint, no further conclusions can be drawn.