Caliper disk brake for steel mill cranes
First Claim
1. A friction wear pad for a caliper disk brake, comprising:
- an elongated substantially elliptical body portion having a pair of orthogonal axes;
semi-circular radiused end portions extending from and interrupting said substantially elliptical body portion at diametrically opposed ends of one of said orthogonal axes; and
wherein said wear pad is symmetrical about each of said pair of orthogonal axes.
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Accused Products
Abstract
A caliper disk brake for steel mill cranes includes a pair of armatures having an electromagnetic coil and a spring interposed between them to operate in a clamshell fashion. The spring urges the armatures apart, while actuation of the coil urges the armatures together. Each of a pair of caliper arms is pivotally connected to a respective one of the armatures at one end thereof, and has a pressure plate pivotally maintained at an opposite end. The pressure plates are maintained in juxtaposition to wear pads which are axially movable in apertures maintained in a pair of stationary plates. A disk, adapted for interconnection with the shaft of a steel mill crane hoist motor is positioned between the plates and wear pads. Actuation of the electromagnetic coil closes the armature and disengages the wear plates from the disk, while deactivation of the coil allows the spring to urge the armatures apart, causing the caliper arms to pivot such that the pressure plates engage the wear pads and force them into braking frictional engagement with the disk. The pressure plates and wear pads are free floating and self aligning.
73 Citations
12 Claims
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1. A friction wear pad for a caliper disk brake, comprising:
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an elongated substantially elliptical body portion having a pair of orthogonal axes;
semi-circular radiused end portions extending from and interrupting said substantially elliptical body portion at diametrically opposed ends of one of said orthogonal axes; and
wherein said wear pad is symmetrical about each of said pair of orthogonal axes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A friction wear pad for a caliper disk brake, comprising:
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an elongated body portion having a pair of orthogonal axes;
radiused end portions extending from and interrupting said body portion at diametrically opposed ends of one of said orthogonal axes;
said body portion and said end portions being symmetrical about each of said pair of orthogonal axes;
said body portion being formed from a pair of wear pad halves;
each of said wear pad halves having a pair of partial depth bores therein; and
a pin disposed in each of said partial depth bores to join said halves together. - View Dependent Claims (10, 11, 12)
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Specification