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The present structure provides an aligned concentric motor to lead-screw coupling, which also provides for flexible vibration damping.
English (United States)
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Page 1 of 2
The present structure provides an aligned concentric motor to lead-screw
coupling, which also provides for flexible vibration damping.
With reference to the drawing, coupling 1 is a molded member, one end of
which has an internal configuration such that it corresponds to and receives
rectilinear surfaces 4 and 5 of motor shaft 2. The coupling further contains a flat
internal surface 6 which mates with flat surface 3 on lead screw 7. These three
flat surfaces reduce the torque load burden resulting from friction produced when
the screws 8 are inserted into openings 9 on the coupling member 1 and
Concentricity and axial alignment are assured between the shafts through the
use of a common core pin used in the mold to establish the inside diameters of
the coupling member. In addition, oscillations present in the driving mechanism
due to misalignments are minimized by molding the coupling member 1 out of a
polymeric material which is easily flexible. However, as far as torsion is
concerned, the coupling member has acceptable torsional stiffness.
Page 2 of 2
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