Security coupling in particular for main drivetrains on rolling stands
AssigneeSMS Demag AG
InventorsMaik Berger, Achim Klein, Jörn Sohler, Michael Saupe
Life of this patent
Estimating the term…
Abstract
An overload safety coupling, especially for the main drivetrains on rolling stands, which bridges a toothed spindle section and a spindle section with a permanent seat. The coupling includes a rotating-and-sliding sleeve, which has internal toothing at one end to hold the spindle section in a way that allows axial displacement. At the other end, the sleeve holds an inner sleeve, which is permanently seated on the spindle section. A pressure sleeve and a pressure gap pretensioned with pressure fluid produce a nonrotatable connection between the rear sleeve-like extension and the inner sleeve, which frictional connection gives way in the event of an overload.
Claims9
Overload safety coupling, which bridges a first, toothed spindle section (1) and a second spindle section (6), comprising:
- a rotating-and-sliding sleeve (3), which has internal toothing at a first end to hold the first spindle section (1) in a way that allows axial displacement;
- an inner sleeve (4) permanently seated on the second spindle section (6), the inner sleeve (4) being held at a second end of the sleeve (3) in a rear sleeve-like extension (13);
- and
- a pressure sleeve (5) and a fluid pressurized gap (14) pretensioned to produce a nonrotatable connection between the rear sleeve-like extension (13) and the inner sleeve (4), which frictional connection gives way in the event of an overload.
Dependencies are inferred from the claim text.