US 5,496,124 AGranted

Tensioning assembly

AssigneeL. Schuler GmbH

InventorsAlfred Bareis, Wilfried Abt, Rudolf Augst, Robert Czapka, Horst Pfisterer

Life of this patent

Estimating the term…

Loading patent…

Abstract

A tensioning assembly having a cylindrical exterior circumferential surface of a drivable shaft section and an interior cone ring having a cylindrical interior circumferential surface arranged on the cylindrical exterior circumferential surface, the interior cone ring having a conical exterior circumferential surface. An exterior cone ring is arranged on the conical exterior circumferential surface of the interior cone ring, the exterior cone ring having tensioning screws which are coaxial with respect to the drivable shaft section and by which the interior and exterior cone rings are tensioned with one another and the interior cone ring is tensioned with the drivable shaft section. To provide a tensioning assembly that is easily mounted and relaxed without loosening of the tensioning screws, a driven sleeve is arranged on the shaft section and is coupled to a driven element, the driven sleeve having an axial length that is larger than an axial length of the interior and exterior cone rings by the axial length of the driven element. Grooves are provided in at least one of the cylindrical circumferential surfaces, the grooves admitting a liquid pressure medium to the pairing of the cylindrical interior and exterior circumferential surfaces. The admission of pressure medium to the pairing of the cylindrical interior and exterior surfaces acts as a hydraulic release system for the tensioning between the shaft section and the driven sleeve.

Claims17

Dependent claims

A tensioning assembly comprising:

a cylindrical exterior circumferential surface of a drivable shaft section;
a driven sleeve arranged on the shaft section, said driven sleeve including an interior cone ring having a cylindrical interior circumferential surface arranged on said cylindrical exterior circumferential surface, the interior cone ring having a conical exterior circumferential surface;
and
an exterior cone ring arranged on the conical exterior circumferential surface of the interior cone ring, the exterior cone ring having tensioning screws which are coaxial with respect to the drivable shaft section and by which the interior and exterior cone rings are tensioned with one another and the interior cone ring is tensioned with the drivable shaft section;
wherein said driven sleeve further includes a driven element, the driven sleeve having an axial length along the drivable shaft section which exceeds an axial length of the interior and exterior cone rings by at least an amount of the axial length of the driven element, wherein the driven element is located axially apart from the interior cone ring;
and
grooves provided in at least one of the cylindrical circumferential surfaces, the grooves admitting a liquid pressure medium only to the pairing of the cylindrical interior and exterior circumferential surfaces, with the admission of pressure medium to the pairing of the cylindrical interior and exterior surfaces acting as a hydraulic release system for the tensioning between the shaft section and the driven sleeve.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 08/266,782Filed 28 Jun 1994 · continuation
Priority: DE 41 36 216.02 Nov 1991
Granted: 5 Mar 1996
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

F16D 1/095
Using one or more elastic segmented conical rings forming at least one of the conical surfaces, the rings being expanded or contracted to effect…:…
F16C 3/28
Cranks; Eccentrics: adjustable cranks or eccentrics
F16D 2001/0955
With clamping effected by ring contraction only: the clamping is effected by hub contraction, i.e. a compression of the hub instead of the ring
Y10T 403/1633
With adjunctive protector, broken parts retainer, repair, assembly or disassembly feature: utilizing fluid pressure