Magnetic bearing and mechanical thrust bearing device for positioning a body rotating relative to a stator body
First Claim
1. A device for positioning a body having a shaft and rotating about an axis relative to a stator body, said device having a locking/unlocking device comprising:
- a plurality of clamps;
clamping shoes disposed on said plurality of clamps and adapted to bear radially on said shaft of said body;
means disposed at a first predetermined distance from said axis for enabling articulation of said plurality of clamps relative to said body, said means enabling articulation being equi-angularly distributed around said axis;
means for pivoting said plurality of clamps about said enabling means between an unlocked configuration in which said clamping shoes are at a first predetermined maximum distance from said axis and a locked configuration in which said clamping shoes are at a first predetermined minimal distance from said axis such that said shaft is clamped radially;
each of said plurality of clamps having a circumferentially disposed slot having a first end located radially at a second predetermined minimal distance from said axis and a second opposite end located radially at a second predetermined maximum distance from said axis; and
said pivoting means further comprising;
an annular ring concentric with said axis of said body and being capable of an angular displacement; and
a plurality of pins extending from said annular ring and engaging said circumferentially disposed slots, said plurality of pins being at said first ends of said circumferentially, disposed slots when said plurality of clamps are in said unlocked configuration and said plurality of pins being at said second opposite ends of said slots when said plurality of clamps are in said locked configuration.
1 Assignment
0 Petitions
Accused Products
Abstract
Device for positioning a rotating body movable about an axis in relation to a stator body including a magnetic bearing and a locking/releasing device. The locking/releasing device embodies a plurality of clamps with pads adapted to radially grip a shaft of the rotating body. The clamps are articulated on the stator body about axial pins spaced from the rotational axis and evenly distributed in an angular manner about the rotational axis, and can be pivotally moved about the axis, by a moving control part between a released configuration in which the gripping pads are at a maximum distance from the axis and a locked configuration in which the pads are at a minimum distance from the axis suitable for inducing radial clamping of the shaft.
49 Citations
25 Claims
-
1. A device for positioning a body having a shaft and rotating about an axis relative to a stator body, said device having a locking/unlocking device comprising:
-
a plurality of clamps; clamping shoes disposed on said plurality of clamps and adapted to bear radially on said shaft of said body; means disposed at a first predetermined distance from said axis for enabling articulation of said plurality of clamps relative to said body, said means enabling articulation being equi-angularly distributed around said axis; means for pivoting said plurality of clamps about said enabling means between an unlocked configuration in which said clamping shoes are at a first predetermined maximum distance from said axis and a locked configuration in which said clamping shoes are at a first predetermined minimal distance from said axis such that said shaft is clamped radially; each of said plurality of clamps having a circumferentially disposed slot having a first end located radially at a second predetermined minimal distance from said axis and a second opposite end located radially at a second predetermined maximum distance from said axis; and said pivoting means further comprising; an annular ring concentric with said axis of said body and being capable of an angular displacement; and a plurality of pins extending from said annular ring and engaging said circumferentially disposed slots, said plurality of pins being at said first ends of said circumferentially, disposed slots when said plurality of clamps are in said unlocked configuration and said plurality of pins being at said second opposite ends of said slots when said plurality of clamps are in said locked configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
-
Specification