Disc brake adjusting device having a cone clutch utilizing clamping balls

摘要

A wear adjustor is provided for adjusting the wear of brake pads and a brake disc of a pneumatic disc brake having a brake application device actuated by a rotary lever. The wear adjustor is preferably inserted into an adjusting spindle of the brake application device. An axial bearing is formed axially on a side of a drive ring, and a ball ramp coupling with a freewheel function is formed axially on the opposite side of the drive ring. The ball ramp coupling has balls and a drive socket which is arranged axially, on the drive side, between the axial bearing and the balls thereof, a cone clutch being arranged between the clutch ring on the output side and an elastic sleeve for a cylinder spring. The cone clutch has the output-side clutch ring and a cone socket connected to the elastic sleeve, and clamping balls are arranged between the output-side clutch ring and the cone socket.

主权项

1. An adjusting device for a pneumatic disc brake having a rotary-lever-actuated brake application device, the adjusting device being insertable into an adjusting spindle of the brake application device, comprising:
a drive ring; an axial bearing arranged axially on a drive input side of the drive ring, the axial bearing being formed in part from a drive input side portion of the drive ring; a ball ramp clutch with a freewheel function arranged axially on a drive output side of the drive ring, wherein the ball ramp clutch comprises balls of the ball ramp clutch arranged axially between a drive bush formed in part by a drive output side portion of the drive ring on a drive input side of the ball ramp clutch and a clutch ring on a drive output side of the ball ramp clutch; a spring sleeve for a cylindrical spring; and a cone clutch arranged between the ball ramp clutch and the spring sleeve, wherein the cone clutch comprises clamping balls arranged between a tapered bush connected to the spring sleeve having axially-extending ball grooves configured to receive the clamping balls on a drive input side of the tapered bush and an opposing surface of a drive output side portion of the clutch ring.