A closing resistance sheet flatness test tool

By designing a flatness testing fixture for the closing resistor element, and utilizing the pressure head, lifting drive, positioning part, and spring structure, accurate positioning and buffer protection of the closing resistor element are achieved, solving the problem of inaccurate detection in existing technologies and improving measurement accuracy and speed.

CN122408587APending Publication Date: 2026-07-17PINGGAO GRP CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
PINGGAO GRP CO LTD
Filing Date
2026-04-17
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The existing technology lacks a simple test fixture that can accurately detect the flatness of the closing resistor sheet, which leads to inaccurate detection or waste of resources and affects the stable operation of the power grid.

Method used

A flatness testing fixture for a closing resistor element was designed, including a testing platform, a support base, a pressing assembly, and a feeler gauge. The pressing head and lifting drive ensure pressing stability, and the positioning part and spring structure enable accurate positioning and buffer protection of the closing resistor element.

Benefits of technology

This improves the accuracy and speed of flatness measurement of the closing resistor element, avoids resource waste, and ensures the safety of the resistor element and the stability of the power grid.

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Abstract

The application discloses a closing resistor piece flatness testing tool and relates to the technical field of closing resistor piece manufacturing processes. The closing resistor piece flatness testing tool comprises a testing platform, a top plate, a pressing piece assembly and a feeler gauge. A plurality of support seats are fixed at the outer circumferential side of the testing platform. The closing resistor piece can be placed on the testing surface on the top of the testing platform. The top plate is fastened on the top of the plurality of support seats. The top plate is provided with lifting holes arranged perpendicularly to the testing surface. The pressing piece assembly comprises a pressing head and a lifting driving part. The pressing head is slidably connected with the lifting holes in the axial direction of the lifting holes. The feeler gauge is used for being inserted between the testing surface and the closing resistor piece to detect the flatness. The pressing head is slidably arranged along the lifting holes, which can keep the lifting stability, ensure that the pressing head is smoothly and uniformly pressed on the closing resistor piece, guarantee that the closing resistor piece is closely attached to the testing surface of the testing platform and improve the measurement accuracy.
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