Planetary gearbox with integral service brake
AssigneeFairfield Manufacturing Company, Inc.
InventorRyan L Noerenberg
Life of this patent
Estimating the term…
Abstract
A planetary gearbox with substantial speed reduction includes a stationary spindle, an integral service brake, and a parking brake. The integral service brake resides radially outwardly with respect to the parking brake in a stacked arrangement such that axial space is conserved yielding an axially short and compact gearbox. An oil passageway extends radially through the spindle. A rotating input shaft drives the planetary gearbox and produces an output in the form of a rotatable housing/hub. The service brake rotors have a large surface area and are keyed to the rotatable hub enabling efficient brake cooling and efficacious brake performance in a compact arrangement.
Claims26
A planetary gearbox with integral service brake and with integral parking brake comprising:
- a stationary spindle;
- said integral service brake resides radially outwardly with respect to said integral parking brake;
- a first oil passageway extending radially from said integral parking brake to said integral service brake;
- a planetary gear system;
- a rotating shaft coupled to said planetary gear system;
- said planetary gear system drives a rotatable ring gear housing;
- said integral service brake operates between said stationary spindle and said rotatable ring gear housing;
- and,
- said integral parking brake operates between said stationary spindle and said rotating shaft coupled to said planetary gear system.
A planetary gearbox with integral service brake comprising:
- a stationary spindle;
- a planetary gear system;
- a rotating shaft coupled to said planetary gear system and, said rotating shaft drives said planetary gear system;
- said planetary gear system drives a rotatable ring gear housing, and, said rotatable ring gear housing includes a hub;
- an integral parking brake;
- a first oil passageway in said stationary spindle extending radially providing oil from said integral parking brake to said integral service brake;
- and,
- said integral service brake operates between and engages said stationary spindle and said rotatable ring gear housing including said hub.
A planetary gearbox with integral service brake comprising:
- said planetary gearbox and said integral service brake have a common axis;
- a stationary spindle;
- said integral service brake includes integral service brake rotor discs and integral service brake stator discs, said integral service brake rotor discs include an outer diameter and an inner diameter, said integral service brake stator discs include an outer diameter and an inner diameter, and said integral service brake rotor discs and said integral service brake stator discs include a surface area as determined by said inner and outer diameters of said integral service brake rotor discs and said integral service brake stator discs with respect to said common axis, respectively;
- said integral service brake resides radially outwardly with respect to said common axis;
- means for picking up oil in communication with a first oil passageway;
- said first oil passageway in said stationary spindle extending radially therethrough to said integral service brake;
- a planetary gear system;
- a rotating shaft coupled to said planetary gear system;
- said planetary gear system drives a rotatable ring gear housing;
- and,
- said integral service brake operates between said stationary spindle and said rotatable ring gear housing.
A planetary gearbox with integral service brake and with integral parking brake comprising:
- a stationary spindle;
- said integral service brake resides radially outwardly with respect to said integral parking brake conserving axial space;
- a first oil passageway extending radially from said integral parking brake to said integral service brake;
- a planetary gear system;
- a rotating shaft coupled to said planetary gear system;
- said planetary gear system drives a rotatable ring gear, said rotatable ring gear affixed to a rotatable housing;
- said integral service brake operates between said stationary spindle and said rotatable ring gear housing;
- and,
- said integral parking brake operates between said stationary spindle and said rotating shaft coupled to said planetary gear system.
A planetary gearbox with integral service brake comprising:
- a stationary spindle;
- a planetary gear system;
- a rotating shaft coupled to said planetary gear system;
- said integral service brake resides radially outwardly with respect to an integral parking brake;
- said planetary gear system drives an output rotatable ring gear housing/hub, said output rotatable ring gear housing/hub being cylindrically shaped and being the output of said gearbox;
- and,
- said integral service brake operates between said stationary spindle and said output rotatable ring gear housing/hub.
A planetary gearbox with integral service brake comprising:
- a stationary spindle;
- a planetary gear system;
- a rotating shaft coupled to said planetary gear system and, said rotating shaft drives said planetary gear system;
- said planetary gear system drives a rotatable ring gear housing, and, said rotatable ring gear housing includes a hub;
- means for picking up oil in communication with a first oil passageway;
- said first oil passageway in said stationary spindle extending radially providing oil to said integral service brake;
- said integral service brake operates between and engages said stationary spindle and said rotatable ring gear housing including said hub;
- said hub includes an arc-shaped oil passageway therein in communication with service brake and a main bearing, and, said main bearing resides between said stationary spindle and said hub.
Dependencies are inferred from the claim text.