Flexible fastening bolt for elastic coupling

Abstract

The invention belongs to the field of connection technology, in particular to a flexible fastening bolt of an elastic coupling. The diameter of the cylinder part of the present invention is the same as the diameter of the threaded connection part and larger than the diameter of the flexible hinge part, and the cylinder part and the flexible hinge part are polished rod cylinders; the rear end of the cylinder part is provided with a bolt head, and the front part of the bolt head is provided with an elastic pad sheet, an elastic sleeve is added outside the cylinder, and the diameter of the cylinder of the flexible hinge is between 10mm and 14mm. The device of the invention can absorb the impact of excessive load, so that the flexible fastening bolt of the invention is not easy to break.

Description

technical field [0001] The invention belongs to the field of connection technology, in particular to a flexible fastening bolt of an elastic coupling. Background technique [0002] The fastening bolts of the elastic couplings in the prior art generally adopt a straight rod structure, which has poor elasticity and cannot meet the requirements of improving the carrying capacity of the locomotive, and is prone to fracture and damage under long and heavy load conditions; secondly, the existing Fastening bolts are generally made of ordinary carbon steel, model M16*50, strength grade 4.8, low strength, not suitable for heavy load conditions. [0003] With the continuous development of technology, the requirements for the improvement of the carrying capacity of electric locomotives have been increased from 2,000 tons in the past to 3,000 tons. The fastening bolts are easily broken during use, and then need to be repaired, which seriously affects the normal operation of the electri...

AI Technical Summary

Problems solved by technology

[0002] The fastening bolts of the elastic couplings in the prior art generally adopt a straight rod structure, which has poor elasticity and cannot meet the requirements of improving the carrying capacity of the locomotive, and is prone to fracture and damage under long and heavy load conditions; secondly, the existing Fastening bolts are generally made of ordinary carbon steel, model M16*50, strength grade 4.8, low strength, not suitable for heavy load conditions

[0003] With the continuous development of technology, the requirements for the improvement of the carrying capacity of electric locomotives have been increased from 2,000 tons in the past to 3,000 tons. The fastening bolts are easy to break during use, and then need to be repaired, which seriously affects the normal operation of the electric locomotive

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