Large knife card testing device

By designing a large knife card test device connecting the triangular connecting plate and the wire extension rope, the problem of unfixed rotation position of the side connecting plate in the existing device is solved, and more accurate tensile strength testing is achieved, and the reliability of the test data is improved.

CN119715154APending Publication Date: 2025-03-28STATE GRID ZHEJIANG ELECTRIC POWER CO LTD JINHUA POWER SUPPLY CO
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Patent Information

Application Number
CN202411922252.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

During the testing process of the existing large knife card test device, due to the unfixed rotation position of the side connecting plate, the test data is deviated, which cannot accurately reflect the tensile strength of the large knife card.

Method used

A large knife card test device is designed, which uses a triangular connecting plate to connect with a steel wire extension rope, so that the triangular connecting plate is not limited to rotation of the same plane, and a tensile connecting rod and force application detector are installed between the triangular connecting plates to simulate the action of the screw assembly, apply tension and detect the tensile force.

Benefits of technology

By simulating test scenarios that are closer to reality, the accuracy of the test data is improved and the reliability of the tensile strength test results of the large knife card is ensured.

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Abstract

The invention discloses a broadsword card test device, a traction part comprises steel wire extension ropes connected with a triangular yoke plate, and a test assembly is suspended between a pair of detection support groups through traction of the two steel wire extension ropes; the front clamp and the rear clamp are respectively connected to the pair of triangular yoke plates; the tension connecting rod and the force application detection piece are respectively positioned on two sides of a connecting line of connecting points of the pair of triangular yoke plates and the steel wire extension rope; the two ends of the tension connecting rod are rotationally connected with the ends of the triangular yoke plates on the two sides correspondingly. The two ends of the force application detection piece are rotationally connected with the end parts of the front card and the rear card respectively; and the force application detection piece is used for applying tension for enabling the end parts of the front card and the rear card to be close to each other and detecting the tension. The triangular yoke plates are connected with the steel wire extension rope, so that the pair of triangular yoke plates cannot be limited to rotate on the same plane, and meanwhile, a test assembly subsequently mounted between the pair of triangular yoke plates is in a suspended state, thereby being closer to reality and being beneficial to improving the accuracy of test data.
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