Shaft sleeve type force sensor and endless chain grab bucket

CN224341110UActive Publication Date: 2026-06-09CHANGZHOU CHANGXINQI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-15
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

After prolonged use, the area where strain gauges are installed on the force sensor of the existing chain hoist grab bucket will deform, affecting the testing accuracy and service life.

Method used

A bushing-type force sensor is designed. By changing the position and structure of the strain gauge mounting hole, and adopting a design that includes a shaft hole that penetrates the wall thickness, a strain gauge mounting hole, a connection channel, and a wiring channel, the overall strength and measurement accuracy of the sensor are improved, while the weight is reduced by using positioning holes and notches.

Benefits of technology

This improved the sensor's lifespan and measurement accuracy, ensuring the measurement accuracy and lifespan of the chain hoist grab bucket.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224341110U_ABST
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Abstract

The application relates to a shaft sleeve type force sensor and a ring chain grab bucket in the technical field of sensors, which comprises a sensor main body, the center of the sensor main body is provided with a shaft hole penetrating the wall thickness, a pair of inwardly recessed strain gauge mounting holes are respectively arranged on the front end face and the rear end face of the sensor main body, the shaft centers of the strain gauge mounting holes are parallel to the shaft center of the shaft hole, the strain gauge mounting holes of the same pair are symmetrically arranged on the two sides of the shaft hole, the strain gauge mounting holes of the same pair are connected and communicated through first connecting channels, and the two strain gauge mounting holes on the same side are connected and communicated through second connecting channels. The shaft sleeve type force sensor and the ring chain grab bucket can improve the overall strength and the measurement accuracy of the sensor by changing the positions of the original strain gauge mounting holes, greatly improve the service life of the sensor, and thus ensure the measurement accuracy and the service life of the ring chain grab bucket.
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Citation Information

Patent Citations

  • Attached type force-measuring sensor

    CN101603865A