| 摘要 |
1286892 Controlling clutch-brake and clutch combinations VERSON ALLSTEEL PRESS CO 23 Jan 1970 [11 June 1969] 3441/70 Heading F2L The hydraulic control of a pair of friction devices 26, 28, e.g. a double clutch for a twospeed transmission or, as shown, a clutch-brake combination for a press, is effected by a pair of annular pistons 66, 68 received in chambers 62, 64 in a stationary housing 18 surrounding and supporting a shaft 40, the pistons acting on the brake and clutch pressure plates 90, 104 through thrust bearings 98, 106 and being interconnected by tie-bolts 80 to ensure that only one of the friction devices can be engaged at a time. As shown, chamber 64 is charged with pressurized hydraulic fluid to engage the clutch 28 against the force of clutch-disengaging, brake-engaging springs 84 surrounding the bolts 80. Again, Fig. 3 (not shown), the stationary housing (182) surrounds an annular guide member (184) keyed to the shaft (170), the housing abutting the guide member through needle thrust gearings (186a), (186b). The shaft 10 carries a quillmounted flywheel (50), Fig. 1 (not shown), or a shaft-mounted flywheel (220), Fig. 4 (not shown). |
