Rotational coupling device having means for sealing the interface between the armature and the electromagnet
First Claim
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1. A rotational coupling device, comprising:
- a rotor configured for rotation about a rotational axis;
a brake plate disposed on a first axial side of the rotor;
an armature disposed on a second axial side of the rotor opposite the brake plate;
an electromagnet disposed on a first axial side of the armature opposite the rotor and the brake plate;
a spacer disposed axially between the brake plate and the electromagnet and radially outwardly of the rotor and the armature; and
,a seal supported on a radially inner surface of the spacer radially outward of the armature, the seal sealing an interface between the armature and the electromagnet and inhibiting particulates on a second axial side of the armature facing the rotor from travelling to the first axial side of the armature.
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Abstract
A rotational coupling device includes a rotor configured for rotation about a rotational axis, a brake plate disposed on a first axial side of the rotor, an armature disposed on a second axial side of the rotor opposite the brake plate, and an electromagnet disposed on one axial side of the armature opposite the rotor and the brake plate. A spacer is disposed axially between the brake plate and the electromagnet and radially outwardly of the rotor and the armature. A seal is supported on a radially inner surface of the spacer radially outward of the armature and seals the interface between armature and electromagnet.
24 Citations
24 Claims
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1. A rotational coupling device, comprising:
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a rotor configured for rotation about a rotational axis; a brake plate disposed on a first axial side of the rotor; an armature disposed on a second axial side of the rotor opposite the brake plate; an electromagnet disposed on a first axial side of the armature opposite the rotor and the brake plate; a spacer disposed axially between the brake plate and the electromagnet and radially outwardly of the rotor and the armature; and
,a seal supported on a radially inner surface of the spacer radially outward of the armature, the seal sealing an interface between the armature and the electromagnet and inhibiting particulates on a second axial side of the armature facing the rotor from travelling to the first axial side of the armature. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A rotational coupling device, comprising:
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a rotor configured for rotation about a rotational axis; a brake plate disposed on a first axial side of the rotor; an armature disposed on a second axial side of the rotor opposite the brake plate; an electromagnet disposed on one axial side of the armature opposite the rotor and the brake plate; a spacer disposed axially between the brake plate and the electromagnet and radially outwardly of the rotor and the armature; and
,a seal supported on a radially inner surface of the spacer radially outward of the armature wherein a first axial end of the seal abuts the electromagnet. - View Dependent Claims (16)
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17. A rotational coupling device, comprising:
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a rotor configured for rotation about a rotational axis; a brake plate disposed on a first axial side of the rotor; an armature disposed on a second axial side of the rotor opposite the brake plate; an electromagnet disposed on a first axial side of the armature opposite the rotor and the brake plate; a spacer disposed axially between the brake plate and the electromagnet and radially outwardly of the rotor and the armature; and
,means, supported on a radially inner surface of the spacer, for sealing an interface between the armature and the electromagnet and inhibiting particulates on a second axial side of the armature facing the rotor from travelling to the first axial side of the armature. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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Specification