Tensioning device and method for tensioning a threaded rod
FR3172742A1Pending Publication Date: 2026-09-11AB SKF SKF PATENT DEPARTMENT
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Patent Information
- Application Number
- FR2026002469
- Authority / Receiving Office
- FR · FR
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2026-02-27
- Publication Date
- 2026-09-11
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Abstract
[Tensioning device and method for tensioning a threaded rod] This tensioning device (10) comprises: - a cylindrical tie rod (14), - an annular piston (16) capable of sliding relative to the cylindrical tie rod (14) in an annular compression chamber (22), - a tube (28) connected to said annular compression chamber (22), - a valve (18) connected to said tube (28) and fixed relative to the cylindrical tie rod (14), and - a connection device (34, 36) connected to the valve (18) and provided with rotary connection means (34a, 36a) to a complementary connection device (34, 36) of means for supplying a pressurized fluid (12).A connection direction of said connecting device (34) to said complementary connecting device (36) is parallel to a longitudinal axis of the threaded portion of the cylindrical tie rod (14) such that said connecting devices (34, 36) can rotate relative to each other around said longitudinal axis. Figure 1.
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