192 clutches and power-stop control – Clutches – Operators
Patent
1977-07-29
1978-12-12
Wyche, Benjamin W.
192 clutches and power-stop control
Clutches
Operators
192 7027, 192 18A, 188170, 192113B, 267162, F16D 1344, F16D 1372
Patent
active
041292049
ABSTRACT:
A steering clutch and brake power drive assembly wherein a clutch pack and a brake pack formed of a plurality of facially engageable plates are respectively retained between a retaining plate and a housing portion of the assembly by a plurality of bolts which, in the assembled arrangement, provide a preselected stress in biasing springs acting on the clutch plates and brake plates, respectively. A novel arrangement of bolts is provided wherein different size bolts are utilized for facilitating the assembly and disassembly. A small number of the bolts is made to be sufficiently large so that the assembly may be maintained by a single one thereof notwithstanding a high biasing force generated by the spring in the assembled arrangement. An improved lubrication oil transfer structure is further provided to the plate stack from a pressurized oil supply defined by a lubricating oil cavity adjacent the plate stack. Relatively movable wall portions defining the cavity are effectively sealed to cause substantially all of the oil delivery to the plate stack to be through the transfer passages.
REFERENCES:
patent: 3557913 (1971-01-01), Russler
patent: 3831718 (1974-08-01), Muller et al.
patent: 4067427 (1978-01-01), Cackley
Caterpillar Tractor Co.
Wyche Benjamin W.
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