Pin shaft sensing assembly design method, system and pin shaft sensing assembly

By adjusting the diameters of the grooves on the outer and inner peripheral walls of the pin, and combining this with a strain gauge full-bridge circuit design, the balance between structural strength and sensing sensitivity of the pin-shaft sensing component was resolved, achieving high-precision sensing measurements.

CN115358018BActive Publication Date: 2026-06-23ZOOMLION HEAVY INDUSTRY SCIENCE AND TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202210928992.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-08-03
Publication Date
2026-06-23
Estimated Expiration
2042-08-03

AI Technical Summary

Technical Problem

Existing pin-type sensing component designs cannot simultaneously balance structural strength and sensing sensitivity, resulting in pin-type sensing components failing to maintain good performance in the pursuit of lightweight and cost-effective development.

Method used

By adjusting the diameter of the annular groove on the outer peripheral wall of the pin and the diameter of the annular groove on the inner peripheral wall of the axial hole at the inner end, the maximum shear stress and output load coefficient of the pin are calculated. After ensuring the structural strength, the sensing sensitivity is optimized, and a strain full-bridge circuit is used for accurate measurement.

Benefits of technology

While meeting structural strength requirements, the sensing sensitivity and resolution of the pin-shaft sensing component were improved, avoiding the phenomenon of sacrificing sensitivity due to strength requirements, and realizing the maximum load factor design of the pin-shaft sensing component.

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Abstract

This invention relates to a design method, system, and pin-shaft sensing component. The method includes: calculating the maximum shear stress τ of the pin based on a first preset value D and a second preset value d. max , maximum shear stress τ max When the allowable shear stress [τ] of the pin is exceeded, adjust the first preset value D and / or the second preset value d until the maximum shear stress τ is reached. max If the shear stress is less than the allowable shear stress [τ], calculate the output load factor Q of the standard full-bridge circuit; compare the output load factor Q with the preset minimum load factor Q. min And the output load factor Q is less than the minimum load factor Q. min When the time is right, adjust the first preset value D and / or the second preset value d until the output load factor Q is not less than the minimum load factor Q. min The pin-shaft sensing component design method, system, and pin-shaft sensing component provided in this application solve the problem that current pin-shaft sensing design methods cannot simultaneously achieve both structural strength and sensing sensitivity.
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