Constant contact steel spring crack preventing method and vertical backstop
A vertical stopper and steel spring technology, applied in bogies, railway car body parts, axle box installation, etc., can solve the problem of greatly improving the fracture resistance of steel springs, it is difficult to effectively reduce the metal fatigue of steel springs, and there is no adjustment variable Rigidity and other issues to achieve the effect of compact structure, preventing steel spring breakage and reducing wear
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[0040] Example 1
[0041] like Figure 5 As shown, a positioning base 4 is fixed above the axle box 5 , and a double-coiled helical steel spring 2 is arranged above the positioning base 4 , and the steel spring 2 supports the weight of the locomotive above the bogie frame 6 . In order to reduce the vertical load borne by the steel spring 2 and reduce the metal fatigue generated by the steel spring 2 during the operation of the locomotive, thereby preventing the steel spring 2 from breaking, a vertical stop 1 is provided in the steel spring 2 . The base flange 132 of the vertical stop 1 is abutted with the positioning base 4 . Since the vertical stop 1 and the positioning base 4 are both revolving bodies, the vertical stop 1 can be stuck in the positioning base 4 . There is a frame guide cylinder 3 just above the vertical stop 1. When the locomotive is unloaded, the rubber boss 12 of the vertical stop 1 is in contact with the frame guide cylinder 3, and the locomotive goes fro...
Example Embodiment
[0062] Embodiment 2
[0063] like Image 6 As shown, the difference from the first embodiment is that the rubber boss 12 of the rotary body above the rubber main body 11 is no longer in the shape of a truncated cone, but the bus bar 123 of the rubber boss 12 of the rotary body is outward. Convex smooth curves. like Figure 7 As shown, the diameter D3 of the rubber boss 12 refers to the diameter of the bottom of the rubber boss 12 , which is different from the diameter D1 of the rubber boss 12 in the first embodiment, which refers to the diameter of the top of the rubber boss 12 . In this embodiment, the preferred value of the diameter D3 of the rubber boss 12 is 20mm-60mm.
[0064] The bus bar 123 is a revolving rubber boss 12 with a smooth curve protruding outward. When the load of the locomotive increases and the frame guide cylinder 3 is pressed down, the rigidity curve of the vertical stop 1 can be made smoother, thereby It is more effective to prevent the sudden incre...
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