Intertractor Aktiengesellschaft

Iamt Ingenieursgesellschaft Fur Allgemeine Maschinentechnik Mbh

Holger Humbek

Michael Ketting

Harald Becker

Frank Frohner

Heiko Holzapfel

Thorsten Slowak

Heinz-Dieter Kramer

Frank Heyer

Matthias Stauch

A tensioning device has an inner end plate mounted on a frame, a sleeve fixed to the end plate and extending along an axis toward an idler wheel over which is spanned a flexible endless element (e.g. a drive chain or conveyor belt), and an axially compressible stack of inner and outer spring rings. The stack is closely surrounded by the sleeve, forms an annular friction spring, and has one end bearing axially on the plate and an opposite end. An outer end plate bears axially toward the frame end plate on the opposite end of the annular friction spring, and a hydraulic unit is braced axially between the outer end plate and the idler wheel. The inner spring rings have substantially frustoconical outer surfaces and the outer spring rings have substantially frustoconical inner surfaces engaging the outer surfaces of the inner rings.

Tensioner for track of tracked vehicle

In order to create a track roller for crawler chains, consisting of a track oller body, an axle traversing the same as well as bearings and seals arranged between the track roller body and the axle, whereby the axle is affixed to a mount with its ends axially protruding from the track roller body, which has a long life when used as intended, the invention proposes that the bearings (3) radially arranged between the track roller body (1) and the axle (2) be designed as pivoting bearings, so that the load-caused bending of the track roller body or the axle can follow without jamming.

Track roller for crawler chain

Growing community of inventors

Bochum, Germany

Holger Humbek