A plum blossom contact elastic pressure detection device

Abstract

The invention discloses a plum blossom contact elastic pressure detection device, which comprises a mounting sleeve, a connecting ring installed at the front end of the mounting sleeve, a spacer bar and a measuring probe rod. There are convex ribs on the inner circumference of the connecting ring, and each convex rib A spacer is fixed on the top, and measuring probe rods are hinged between adjacent spacer bars. An elastic connecting device is provided on the outer surface of the rear end of each measuring probe rod, and each elastic connecting device is correspondingly connected with a miniature load cell. , the miniature force sensor is fixed on the inside of the installation sleeve, the rear end of the installation sleeve is fixed with a mounting plate and a driving device, and the front end of the driving device is provided with a driving cone rod, and the rear end of the measuring probe rod is stretched radially when the driving cone rod stretches Or shrink, make the front end of the measuring probe shrink or expand radially. The invention adopts the method of elastically expanding the measuring probe rod and contacting the contact finger for measurement, and uses the measuring probe rod and the elastic connection device for conversion measurement, without external force impact interference in the measurement process, high measurement efficiency, accurate and reliable measurement.

Description

technical field [0001] The invention relates to the technical field of electric equipment detection, in particular to a plum blossom contact elastic pressure detection device. Background technique [0002] The plum blossom contact is a high-voltage, high-current sliding power connector that adopts a multi-piece contact finger parallel structure. It is widely used in isolating switches, switch cabinets, substation trolley switches and other equipment as the main conductive circuit connector. It has multiple contact points. , Good conductivity, small contact resistance and so on. [0003] The contact pressure between each contact finger and the contact conductor in the plum blossom contact is provided by several ring springs. If the pressure of the ring springs of the plum blossom contact is insufficient, the contact fingers and the ring spring of the plum blossom contact will heat up. Usually, the heating of the contact finger and the ring spring is caused by insufficient pr...

AI Technical Summary

Problems solved by technology

This plum blossom contact pressure tester can measure all the contact fingers in the plum blossom contact at one time, and the measurement efficiency is high, but because the pressure sensing head needs to be continuously inserted and pulled out during the measurement, the sensing components in the pressure sensing head are precision components. The device is easily damaged by the insertion force during the plug-in process, and the contact pressure of the contact fingers in the deformed plum-blossom contact becomes smaller, making it impossible to judge whether the sensing component and the contact finger corresponding to the plum-blossom contact are in reliable contact during detection , prone to misjudgment

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