Brake disk for disk brakes on a rail vehicle
AssigneeKnorr-Bremse GmbH
InventorXaver Wirth
Life of this patent
Estimating the term…
Abstract
A brake disk for a disk brake mounted on either the axle or wheel of a rail vehicle has on its inner peripheral portion a flange ring provided with parallel annular surfaces which are inclined to a central plane of the disk brake. These inclined surfaces are clamped between an inclined surface on a hub and an inclined surface on a retaining ring. The retainer ring is closely positioned upon the hub but in such a manner that any thermal expansion of the brake disk will enable the flange ring to move unhindered in an oblique radial outward direction while at the same time maintaining the brake disk locked and centered without overstressing the fastening bolts which pass through the hub portion and the retainer ring.
Claims16
A brake disk for a disk brake on a rail vehicle comprising a hub having a first conical annular surface inclined at an angle of substantially 45.degree. to a radial plane of said hub, a retainer ring positioned upon said hub and having a fourth conical annular surface inclined at said angle and said fourth conical annular surface spaced from said first conical annular surface, and annular braking element having at its inner peripheral portion a flange ring having second and third axially spaced parallel conical annular surfaces each inclined at said angle, and fastener means interconnecting said retainer ring and a portion of said hub to clamp said flange ring therebetween such that said first and third conical annular surfaces engage each other and said second and fourth conical annular surfaces engage each other but said flange ring is free of engagement with said hub, said flange ring being clamped against axial movement but capable of radially outward movement along the engaging conical surfaces because of any thermal expansion of the annular braking element while maintaining the centering of the annular braking element with respect to the hub.
A brake disk for a disk brake on a rail vehicle comprising a hub having a first conical annular surface inclined at an angle of substantially 30.degree. to a radial plane of said hub, a retainer ring positioned upon said hub and having a fourth conical annular surface inclined at said angle and said fourth conical annular surface spaced from said first conical annular surface, an annular braking element having at its inner peripheral portion a flange ring having second and third axially spaced parallel conical annular surfaces each inclined at said angle, and a fastener means interconnecting said retainer ring and a portion of said hub to clamp said flange ring therebetween such that said first and third conical annular surfaces engage each other and said second and fourth conical annular surfaces engage each other but said flange ring is free of engagement with said hub, said flange ring being clamped against axial movement but capable of radially outward movement along the engaging conical surfaces because of any thermal expansion of the annular braking element while maintaining the centering of the annular braking element with respect to the hub, said hub comprises a hub of a rail vehicle wheel having a transition portion and a flange extending radially from said transition portion, said annular braking element positioned on one side of said flange and a second annular braking element positioned on a second side of said flange, said first conical annular surface being on one side of said hub transition portion and a fifth conical annular surface being on a second side of said transition portion and inclined at an angle of substantially 30.degree. to a radial plane of the hub, a second retainer ring having a sixth conical annular surface inclined at said angle and the fourth and sixth conical annular surfaces of said first and second retainer rings being respectively directed toward said hub transition portion, said fastener means passing through said retainer rings and said hub transition portion to clamp said flange rings upon said first and fifth conical annular surfaces of said hub transition portion and said fourth and sixth conical annular surfaces of said retainer rings respectively such that there are annular clearances between portions of said respective ones of said flange rings and said retainer rings.
Dependencies are inferred from the claim text.