Wear indicating friction disc
First Claim
1. A wear indicating friction disc assembly, comprising:
- two friction discs;
a plurality of clamping assemblies positioned around a circumference of the friction discs to clamp the two friction discs together, each clamping assembly comprising at least one clamping washer engaging a first side of the clamped friction discs and a fastener passing though the clamping washer and the two friction discs to create a clamping force between the at least one clamping washer and the two friction discs;
wherein, at least one of the clamping washers is a wear indicating washer that includes a wear indicating portion extending from a clamping portion of the washer into a portion of one of the friction discs that is engageable with an opposing friction member to transmit torque between the friction disc assembly and the opposing friction member, a height of the wear indicating portion being set so as to engage the opposing friction member at a predetermined wear level of the friction disc assembly and to emit a detectable vibratory signal upon sliding engagement with the opposing friction member.
0 Assignments
0 Petitions
Accused Products
Abstract
A wear indicating friction disc assembly includes at least two friction discs and may include a plurality of clamping assemblies positioned around a circumference of the friction discs to clamp at least two of the friction discs together. At least one of the clamping assemblies may include a wear indicating washer with a wear indicating portion extending into a portion of one at least one of the friction discs. A height of the wear indicating portion is set to engage the opposing friction member at a predetermined wear level of the friction disc assembly and to emit a detectable signal upon sliding engagement with the opposing friction member.
22 Citations
32 Claims
-
1. A wear indicating friction disc assembly, comprising:
-
two friction discs;
a plurality of clamping assemblies positioned around a circumference of the friction discs to clamp the two friction discs together, each clamping assembly comprising at least one clamping washer engaging a first side of the clamped friction discs and a fastener passing though the clamping washer and the two friction discs to create a clamping force between the at least one clamping washer and the two friction discs;
wherein, at least one of the clamping washers is a wear indicating washer that includes a wear indicating portion extending from a clamping portion of the washer into a portion of one of the friction discs that is engageable with an opposing friction member to transmit torque between the friction disc assembly and the opposing friction member, a height of the wear indicating portion being set so as to engage the opposing friction member at a predetermined wear level of the friction disc assembly and to emit a detectable vibratory signal upon sliding engagement with the opposing friction member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A clutch, comprising:
a plurality of friction disc assemblies in axial alignment and engageable with one another to transmit torque;
each function disc assembly comprisingtwo friction discs;
a plurality of clamping assemblies positioned around a circumference of the friction discs to clamp the two friction discs together, each clamping assembly comprising at least one clamping washer engaging a first side of the clamped friction discs and a fastener passing though the clamping washer and the two friction discs to create a clamping force between the at least one clamping washer and the two friction discs;
wherein, at least one of the clamping washers is a wear indicating washer that includes a wear indicating portion extending from a clamping portion of the washer into a portion of one of the friction discs that is engageable with an opposing friction disc assembly to transmit torque between the friction disc assembly and the opposing friction disc assembly, a height of the wear indicating portion being set so as to engage the opposing friction disc assembly at a predetermined wear level of the friction disc assembly and to emit a detectable vibratory signal upon sliding engagement with the opposing friction disc assembly. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
-
28. A disk wear indicator for a friction disk in a power transmitting clutch assembly, comprising:
a washer assembly having a wear indicating portion extending within the friction disk, the wear indicating portion of the wear indicator positioned at a predefined distance from a wear surface of the friction disk. - View Dependent Claims (29, 30, 31, 32)
Specification