New coaxial/orthogonal planetary reduction gears
A
Brevini product story
Edited by the Engineeringtalk editorial team
Apr 13, 2001
Brevini Riduttori presented a preview at the 2001 Hannover Fair of its new range of coaxial and orthogonal planetary reduction gears for shaft mounted applications in industrial contexts
Brevini Riduttori presented a preview at the 2001 Hannover Fair of its new range of coaxial and orthogonal planetary reduction gears for shaft mounted applications in industrial contexts.
In shaft mounted applications the axis, providing the final movement of a machine or of a self-supporting system, is driven directly at one end by a hollow-shaft reduction gear, which in turn reacts thanks to a reaction arm suitably fixed to the frame.
In the innovative solution designed by Brevini Riduttori - the range includes 9 sizes of coaxial reduction gears and 11 sizes of orthogonal reduction gears, with a very broad "power transmission" capacity (the maximum torque reaches 35,000 Nm) - the epicyclic reduction gear features a robust support equipped with a cylindrical female output shaft, to which the movement is transmitted by the conventional key system.
This system combines the advantages of lightness, compactness and low price of the epicyclic reduction gears with the simplicity of the traditional cylindrical shafts connection.
This solution also avoids the use of rigid joints with conical rings, thus providing clear advantages in terms of: Easy installation and removal; Reduced axial space requirements as compared with more traditional solutions using joints; and Lower cost due to the elimination of the joint itself.
The special, patented, axial fixing system keeps lubricated the parts of the shafts that are coupled, preventing rusting and corrosion that might otherwise cause problems when removing the reduction gear, while the high loading capacity of the output support enables reaction arms of any shape and length to be used, in any position.
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