Powered swivel connection for turning hanging loads about an upr

Details Powered swivel connection for turning hanging loads about an upr Powered swivel connection for turning hanging loads about an upr

1982-02-10

1985-07-16

Maslousky, Paul E.

Motors: expansible chamber type

Three or more cylinders arranged in parallel radial or...

Radially disposed cylinders

91180, 414624, F01L 3302, F01B 106

Patent

active

045288933

ABSTRACT:
A hydraulic motor either of the radial or axial piston type is used for swivelling a hanging load about an upright axis. The motor has a distributor for controlling the flow of hydraulic fluid to the input and drain ducts of the motor. The motor further has hydraulic ducts extending from the stator to the rotor for transmitting fluid required for operation of the actuator of a gripping device or bucket. The distributor floats, so that radial and axial play as well as deformation of the rotor relative to the stator may be taken up without stress. At least some of the hydraulic ducts pass through the distributor, connections being made by suitable rotary transmissions and connecting points within the motor.

REFERENCES:
patent: 3899958 (1975-08-01), Spencer
patent: 4009643 (1977-03-01), Thumm

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