Integrated rigidity measuring device for rotating arm node

By designing an integrated stiffness measuring device for rotating arm nodes, the two nodes are combined and fixed with a spring, the existing device has solved the problems of low measurement accuracy and cumbersome operation, and achieved high-precision and convenient stiffness measurement.

CN222671438UActive Publication Date: 2025-03-25NANJING RAILWAY NEW TECH CO LTD
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Patent Information

Application Number
CN202420762753.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-15
Publication Date
2025-03-25
Estimated Expiration
2034-04-15

AI Technical Summary

Technical Problem

The existing rotary arm node measurement devices have low measurement accuracy and high damage to the assembly, which cannot fully simulate the actual installation status, resulting in inaccurate measurement results; the device has poor functionality and convenience, and requires repeated disassembly and assembly, which is cumbersome to operate and inefficient.

Method used

An integrated stiffness measuring device for rotating arm nodes is designed. The two nodes are combined together through the barrel sleeve and fixed with a spring to achieve the test of stiffness in four directions: axial, radial, torsion and deflection without repeated disassembly and installation.

Benefits of technology

It improves the accuracy and convenience of measuring the radial stiffness of the rotary arm node, avoids relative slippage caused by poor assembly, simplifies the operation process, and improves the measurement efficiency.

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Abstract

The utility model discloses an integrated rigidity measuring device for a tumbler node. The integrated rigidity measuring device comprises integrated rigidity measuring equipment and auxiliary equipment, the integrated rigidity measuring device comprises a bolt, an inner positioning pin, a sleeve, a clamp spring and a force transmission pin. The two to-be-tested rotating arm nodes are arranged face to face and are connected through a force transmission pin; an inner positioning pin is arranged in the matching surface of the two to-be-tested rotating arm nodes, and the inner positioning pin penetrates through the two to-be-tested rotating arm nodes to form a fixed whole; and the fixed whole body is placed in the sleeve. According to the utility model, two nodes can be effectively combined, relative slippage caused by assembly factors is avoided, and the measurement precision can be greatly improved. The two nodes are combined together through the sleeve, the sleeve and the nodes are in interference fit and are installed into a whole, rigidity tests in the axial direction, the radial direction, the torsion direction and the deflection direction can be carried out, repeated disassembly and assembly are not needed, and measurement convenience is improved.
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