Brake assembly

• US 9,249,846 B2
• Filed: 09/13/2011
• Issued: 02/02/2016
• Est. Priority Date: 09/13/2011
• Status: Active Grant

• Current Assignee: Ausco Products, Inc. (Dura Automotive Systems)
• Original Assignee: Ausco Products, Inc. (Dura Automotive Systems)
• Inventors: Crawford, Norman D., Dennis, Brian P.
• Primary Examiner(s): Williams, Thomas J
• Application Number:
  US13/231,168
• Publication Number:
  US 20130062928A1
• Time in Patent Office: 1,603 Days
• Field of Search: 188/71.5, 188/71.6, 188/73.46, 188/264.D, 188/264.E, 188/264.CC, 301/6.1, 301/6.8, 301/105.1
• US Class Current: 1/1
• CPC Class Codes: B60B 27/0005 with ball bearings
• CPC Class Codes: B60B 27/0052 the element being a brake disc
• CPC Class Codes: B60B 27/0073 characterised by sealing means
• CPC Class Codes: B60B 27/06 adapted to be fixed on axle
• CPC Class Codes: B60B 2900/113 Production or maintenance time
• CPC Class Codes: B60B 2900/5112 against dust or dirt
• CPC Class Codes: B60B 7/0013 Hub caps
• CPC Class Codes: B60T 1/065 employing disc B60T1/062 takes precedence
• CPC Class Codes: F16D 2055/0033 Fully-enclosing housings
• CPC Class Codes: F16D 2121/04 acting on a piston-type actuator, e.g. for liquid pressure
• CPC Class Codes: F16D 2121/14 Mechanical
• CPC Class Codes: F16D 2123/00 Multiple operation forces
• CPC Class Codes: F16D 2125/38 with plural cam or ball-ramp mechanisms arranged concentrically with the brake rotor axis
• CPC Class Codes: F16D 55/24 with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member
• CPC Class Codes: F16D 55/36 Brakes with a plurality of rotating discs all lying side by side

Abstract

A brake assembly adapted to be mounted to the flange of an axle housing. The brake assembly includes a stationary plate having a plurality of threaded holes therein. The brake assembly also includes a mounting sleeve positioned adjacent to the axle housing flange opposite the stationary plate. A plurality of holes are provided through the mounting sleeve and are aligned with the threaded holes in the stationary plate. A bolt is received through each of the holes in the mounting sleeve and the aligned holes in the axle housing flange and the threaded holes in the stationary plate to secure the brake to the axle housing. The mounting sleeve may be provided in two or more separate pieces in order to facilitate installation.

Claims

1. A brake having an outermost surface adapted to be mounted to an axle housing flange of an axle housing including a plurality of holes therethrough, the brake comprising a stationary plate, a plurality of threaded holes in said stationary plate, a longitudinally extending mounting sleeve positioned longitudinally adjacent the axle housing flange on a side opposite said stationary plate and immediately laterally adjacent to the axle housing, a plurality of holes through said mounting sleeve, and a plurality of bolts, said bolts extending in a longitudinal direction and having a threaded portion and a head, said bolts being received in said holes in said mounting sleeve, said holes through the axle housing flange, and said threaded holes in said stationary plate to secure the brake to the axle housing, and wherein said heads of said bolts are spaced from said axle housing, said mounting sleeve having an outer surface, at least a portion of said outer surface of said mounting sleeve being devoid of a component positioned laterally adjacent thereto, and forming at least a part of the outermost surface of the brake assembly, said outer surface of said mounting sleeve being devoid of teeth.

2. The brake of claim 1, wherein said threaded channels extend only partially through said stationary plate.

3. The brake of claim 1, wherein said mounting sleeve is generally annular in shape and includes an interior diameter approximately equal to but slightly larger than an exterior diameter of the axle housing adjacent the axle housing flange.

4. The brake assembly of claim 1, said bolts having a longitudinal length, said mounting sleeve having a longitudinal length, said longitudinal length of said mounting sleeve being approximately half of said longitudinal length of said bolts.

5. The brake of claim 1, wherein said mounting sleeve is formed from two or more pieces to facilitate installation, wherein each of said pieces includes at least two holes therethrough, and wherein a bolt is received in each of said holes in said pieces to secure said pieces of said mounting sleeve to said axle housing flange and said stationary plate.

6. The brake of claim 1, further comprising a cover plate that engages said stationary plate to form an inner chamber, and a seal positioned between said cover plate and said stationary plate to form a fluid-tight seal.

7. The brake of claim 6, further comprising a cooling and lubricating fluid within said inner chamber.

8. The brake of claim 7, further comprising a disc stack including alternating rotating discs and stationary discs, said rotating discs being rotationally coupled to a hub.

9. The brake assembly of claim 1, said holes in said mounting sleeve having a diameter, said mounting sleeve having a longitudinal length, said longitudinal length of said mounting sleeve being approximately two times the diameter of said holes in said mounting sleeve.

10. A wheel hub assembly comprising an axle, a unitary axle housing having a flange, and a brake assembly secured to said axle housing flange near the end of said axle, a hub being rotationally secured to said axle, an end of said hub including a plurality of lug bolts adapted to receive a vehicle wheel thereon, said brake assembly including a stationary plate, a plurality of threaded channels in said stationary plate, a longitudinally extending mounting sleeve positioned longitudinally adjacent said axle housing flange on a side opposite said stationary plate and immediately laterally adjacent to said unitary axle housing, a plurality of holes through said mounting sleeve, and a plurality of bolts, said bolts extending in a longitudinal direction and having a threaded portion and a head, said bolts being received in said holes in said mounting sleeve, said holes through the axle housing flange, and said threaded channels to secure the brake to the axle housing, wherein said mounting sleeve includes at least two separate arcuate pieces that together form a generally annular mounting sleeve, and wherein said heads of said bolts are spaced from said axle housing, said bolts having a longitudinal length, said mounting sleeve having a longitudinal length, said longitudinal length of said mounting sleeve being approximately half of said longitudinal length of said bolts.

11. The wheel hub assembly of claim 10, wherein said threaded channels extend only partially through said stationary plate, said mounting sleeve having an outer surface, at least a portion of said outer surface of said mounting sleeve not being in contact with another component of the brake assembly.

12. The wheel hub assembly of claim 10, said holes in said mounting sleeve having a diameter, said mounting sleeve having a longitudinal length, said longitudinal length of said mounting sleeve being approximately two times the diameter of said holes in said mounting sleeve.

13. The wheel hub assembly of claim 10, wherein said mounting sleeve is generally annular in shape and includes an interior diameter approximately equal to but slightly larger than an exterior diameter of the axle housing adjacent the axle housing flange, where each of said arcuate pieces include at least two holes therethrough, and wherein a bolt is received in each of said holes in said arcuate pieces to secure said arcuate pieces of said mounting sleeve to said axle housing flange and said stationary plate.

14. The wheel hub assembly of claim 10, further comprising a cover plate that engages said stationary plate to form an inner chamber, and a seal positioned between said cover plate and said stationary plate to form a fluid-tight seal.

15. The wheel hub assembly of claim 14, further comprising a cooling and lubricating fluid within said inner chamber.

16. The wheel hub assembly of claim 15, further comprising a disc stack including alternating rotating discs and stationary discs, said rotating discs being rotationally coupled to a hub.

17. The wheel hub assembly of claim 10, wherein said axle includes an identical wheel hub assembly at the opposing end of said axle.