An adjustable vibration screw anchor tightening test device

The adjustable spiral anchor turning test device, which integrates vibration and lubrication systems, solves the problem that existing devices cannot simulate high-frequency vibration and lubrication effects. It enables torque measurement under multiple working conditions, provides comprehensive and reliable test data, and supports the optimization of spiral anchor construction technology.

CN121898771BActive Publication Date: 2026-05-26TAIYUAN UNIVERSITY OF TECHNOLOGY +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TAIYUAN UNIVERSITY OF TECHNOLOGY
Filing Date
2026-03-18
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing anchor bolt anchoring test equipment cannot effectively simulate the effects of high-frequency vibration and lubrication during actual anchoring, resulting in inaccurate torque measurement and distorted test results.

Method used

An adjustable vibration spiral anchor turning test device was designed, which integrates a vibration mechanism and an anchor tip lubrication system. Axial vibration is applied through a hollow vibration sleeve, and lubricant is automatically pumped during the descent of the lifting platform to simulate multi-physics coupled working conditions. A decoupled tooth structure is used to isolate vibration and rotational torque to ensure the accuracy of torque sensor data.

Benefits of technology

It enables the study of torque response under various working conditions, provides comprehensive and reliable test data, supports the optimization of helical anchor construction technology, and ensures the authenticity and reliability of test results.

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Abstract

This invention provides an adjustable vibratory spiral anchor tightening test device, belonging to the technical field of anchoring test devices. It includes: a test soil box; a lifting platform, with the output shaft of a reduction motor fixedly connected to the spiral anchor via a coupling, and a torque sensor also installed on the output shaft of the reduction motor; a vibration mechanism, including a hollow vibration sleeve movably fitted onto the outside of the spiral anchor; and an anchor tip lubrication mechanism, thereby reducing friction during the anchor tightening process. This invention overcomes the limitation of traditional devices that can only measure a single anchor tightening torque, realizing the simulation of multi-physics field coupled working conditions, providing unprecedented test data support for optimizing the construction process of spiral anchors. This invention fundamentally solves the technical problem of measuring torque due to vibration interference, ensuring that the data collected by the torque sensor installed on the upper drive rod section purely reflects the soil cutting resistance, eliminating the interference of vibration waves on the sensor, and guaranteeing the authenticity and reliability of the test results.
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