Mechanical Sciences
Mechanical Sciences
Mechanical Sciences
Articles | Volume 17, issue 1
Articles | Volume 17, issue 1
https://doi.org/10.5194/ms-17-19-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/ms-17-19-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 17, issue 1
Research article
 | 
23 Jan 2026
Research article |  | 23 Jan 2026

Design and experimental verification of the loading mechanism for a compact bolt installation tool

Li Wensheng, Wu Kun, Wang Shuai, Xia Binhong, Zuo Dunwen, and Lu Wenzhuang

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Short summary
We developed a new tool to solve the challenge of installing high-strength bolts within the extremely compact spaces of aircraft engines. Our design employs a unique ratchet–pawl mechanism driven by a hydraulic cylinder to generate high torque. Testing confirmed that the tool can safely deliver an average torque of 136 N m within a mere 4 mm gap. This successful innovation enhances assembly safety and efficiency in confined areas and establishes a foundation for the intelligent tools.
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