High-speed rail catenary intelligent bolt with loosening detection function and detection system

Abstract

The invention provides a high-speed rail catenary intelligent bolt with a loosening detection function. The high-speed rail catenary intelligent bolt comprises a bolt main body and a nut. The bolt body comprises a screw rod part and an end cap part. A cavity is formed in the end cap part; a miniature circuit board is arranged in the cavity; and the miniature circuit board at least comprises an IC chip, an inductive coil, a transmitting antenna and two leads, wherein the inductive coil, the transmitting antenna and the two leads are connected with the IC chip. The bolt body further comprises a gasket and a spring, wherein the screw rod part is sleeved with the spring, and the sleeve is located between the end cap part and the gasket. Bulge contact points facing the end cap part are arranged on the gasket. The two leads extend out of the end cap part through a via hole formed in the end cap part and are connected with the gasket and a piece to be connected correspondingly. According to the intelligent bolt, the inductive coil, an IC circuit and the small antenna are adopted to make the miniature circuit board, and a metal cap is used as the antenna, so that loosing information obtaining and wireless transmission are achieved.

Description

technical field [0001] The invention relates to the field of mechanical detection, in particular to a high-speed railway catenary intelligent bolt with a loose detection function and a detection system. Background technique [0002] Bolt is a classic and commonly used connection part, which is widely used in the mechanical field. At present, most connections of high-speed railway catenary are realized by bolts. Since the bolted connection is a detachable connection, compared with the non-detachable connection, the probability of loosening is higher, and the loosening and falling of the bolts will increase the incidence of accidents, so the bolts of the catenary of the high-speed rail often need to be loosened. There are currently two detection methods, one of which is regular inspection, usually once a year, where inspectors need to climb up the catenary and confirm at close range; the other is random inspection, that is, when the high-speed rail passes, infrared cameras are...

AI Technical Summary

Problems solved by technology

[0003] The above two detection methods are relatively passive, especially during regular inspections, the detection method is relatively subjective, and it is easy to miss detection, and the method of climbing the catenary greatly reduces the safety of the inspector

Images