GB1009230A - Improvements in or relating to clutch and brake arrangements for use in rotary powertransmission systems - Google Patents

Abstract

1,009,230. Clutch - brake combinations. COWLISHAW, WALKER & CO. Ltd., and D. HOLDING. Sept. 6, 1963 [Sept. 11, 1962] No. 34748/62. Heading F2L. A fluid pressure operated friction clutch and brake arrangement comprises an axially fixed driven plate 19 co-operating with a driving plate 21 axially slidable with respect to a driving flywheel 11, and a brake plate 26 axially slidable with respect to a fixed member 17, the clutch plates 19, 21 being engaged by an annular piston 27 subject to hydraulic or air pressure, the plate 19 being engaged with the brake plate 26 when the pressure is released by springs 34 acting on a plate 32 which is fixed to the piston 27 by bolts 33. The bolts 33 permit the spacing between the plate 32 and the piston to be adjusted to accommodate wear. The driven plate 19 is fixed to a driven shaft 13 by means of a sleeve 39 on the shaft having lugs 38 which are formed with slots 38a. The plate 19 is formed with lugs 37, and during assembly the thrust plate 19 is slid axially over the shaft 13 with the lugs 37, 38 out of alignment until the lugs 37 are aligned axially with the slots 38a, whereupon the plate 19 is rotated until the lugs 37 enter the slots, then bolts 43 are passed through aligned holes in the lugs 37, 38 to retain the plate 19 against circumferential displacement. Assembly and removal of the thrust plate 19 on the shaft 13 is thus simply effected. The piston 27 and end-plate 32 are axially slidably keyed on to the lugs 38 at 41 and 42.