Mounting bracket for an auxiliary and protective tube for the sensor element of a screw monitoring system

The mounting bracket and protective tube for sensor elements in wind turbine bolts address the issues of dynamic stress and installation complexity, ensuring sensor integrity and ease of maintenance.

DE202025003251U1Active Publication Date: 2026-03-26FREY BJÖRN
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Utility models
Current Assignee / Owner
Filing Date
2025-10-28
Publication Date
2026-03-26

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Abstract

Holder (5) for the sensor element (7) of a screw monitoring device, characterized in that a protective tube (4) is used to minimize the loads on the sensor element (7) caused by the holder (5) and external influences.
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Description

[0001] Bolted connections in the hub of a wind turbine are subject to dynamic stress due to the rotation of the rotor, which can lead to breakage or loosening of the bolts after a sufficiently long period. The bolt monitoring system according to patent DE 10 2025 212 906 B4 checks whether bolted connections are loose or broken. For the bolt monitoring system according to patent DE 10 2025 212 906 B4, a suitable sensor element is attached to each bolt of the bolted connection to be monitored in the hub of a wind turbine. As soon as a bolt is loosened or broken, the sensor element is damaged by the continuous rotation and the resulting changing direction of the force due to gravity, triggering an alarm.The mounting of the sensor element must be designed in such a way that, in the basic state (the screw connection is tightened correctly), the sensor element is best protected against damage due to the rotation of the rotor of the wind turbine.

[0002] Furthermore, the mounting of the sensor element must allow for the simplest possible installation. This is also advantageous for maintenance work.

[0003] In the event of a fault in the screw connection, the sensor element must remain as firmly connected as possible to the loose parts of the defective screw connection. Reference symbol list 1 screw head 2 mother 3 Threaded part of a screw connection 4 Protective tube 5. Mounting the protective tube 6. Clamping device for fixing the bracket to the screw connection 7 Sensor element QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] DE 10 2025 212 906 B4

[0001]

Citation Information

Patent Citations

  • DE102025212906B4