Process and arrangement for measuring multiple disk brake wear

US5522259A · kind A · utility

Assignee

• O & K Orenstein and Koppel AG

Inventors

• Thomas Schmidt · Hannover, DE
• Siegfried Bulikewitz · Achern, DE
• Helmut Reisinger · St. Georgen, AT

Key dates

• Filing date: Oct 12, 1994
• Grant date: Jun 4, 1996
• Expiry date: Oct 12, 2014

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16D66/02
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A process and apparatus for measuring the wear of a multiple disk brake while a wheel hub is rotationless. A measuring instrument is provided having a screw-like component and a spindle. A plug element located in a predetermined bore of the wheel hub is replaced with the screw-like component. The brakes are actuated, the spindle is moved while the brakes are actuated until the spindle comes into contact with a supporting disk that axially supports the multiple disks. The distance the spindle was moved is ascertained to form a first measured value. The brakes are then released, and the spindle is moved again, until the spindle again comes into contact with the supporting disk. The distance the spindle was moved is ascertained to form a second measured value. The difference between the first measured value and the second measured value is determined to ascertain a piston stroke, and the wear of the multiple disk brakes is ascertained from the piston stroke.