Hydraulic device with sleeve insert
AssigneeEaton Corporation
InventorsJay Paul LUCAS, Trimbak Shridhar ATTARDE, Hrishikesh Narayan THAKUR, Vivek Babulal HIRE
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Abstract
A hydraulic device is provided with a sleeve insert disposed between a driven hub and a stationary housing. The hydraulic device further includes a hydraulic motor to actuate the driven hub through a drive shaft and a coupling mechanism. A sealing element is disposed between the sleeve insert and the stationary housing. The sleeve insert is fixed to the driven hub and disposed between the stationary housing and the driven hub to provide a riding surface on which the sealing element slides as the driven hub rotates relative to the stationary housing.
Claims25
A hydraulic drive comprising:
- a stationary housing having a shaft portion, the shaft portion defining a shaft passage therethrough and a sealing groove radially formed thereof, the sealing groove configured to receive a sealing element;
- a driven hub adapted to be connected to a rotatable driven element, the driven hub including an inner wall, the inner wall radially inwardly extending from an inner surface of the driven hub and having a first axial face, a second axial face opposite to the first axial face, and a radial end connecting the first and second axial faces, the radial end defining an opening through which the shaft portion of the stationary housing passes;
- a drive shaft extending through the shaft passage of the stationary housing;
- a hydraulic motor for rotating the drive shaft relative to the stationary housing;
- a coupling mechanism coupling the drive shaft to the driven hub such that torque from the drive shaft is transferred to the driven hub causing the driven hub to rotate relative to the stationary housing;
- and
- a sleeve insert disposed between the radial end of the driven hub and the sealing groove of the stationary housing, the sleeve insert providing a riding surface on which the sealing element disposed in the sealing groove of the stationary housing slides as the driven hub rotates relative to the stationary housing.
A method of manufacturing a hydraulic drive, the method comprising:
- disposing a seal element in a seal groove formed on a shaft portion of a stationary housing, the shaft portion defining a shaft passage through which a drive shaft extends;
- placing a driven hub around the shaft portion of the stationary housing such that an inner wall of the driven hub is arranged over the seal element disposed on the shaft portion of the stationary housing, the inner wall radially extending from an inner surface of the driven hub and defining an opening through which the shaft portion of the stationary housing passes;
- engaging a sleeve insert with the inner wall of the driven hub such that the sleeve insert is disposed between the inner wall of the driven hub and the seal element disposed in the shaft portion of the stationary housing, the sleeve insert providing a riding surface on which the seal element slides as the driven hub rotates relative to the stationary housing;
- and
- engaging a coupling mechanism to the driven hub and the drive shaft, the coupling mechanism configured to couple the drive shaft to the driven hub such that torque from the drive shaft is transferred to the driven hub causing the driven hub to rotate relative to the stationary housing.
A hydraulic drive comprising:
- a stationary housing defining a shaft passage;
- a driven hub adapted to be connected to a rotatable driven element;
- a drive shaft extending through the shaft passage of the stationary housing;
- a hydraulic motor for rotating the drive shaft relative to the stationary housing;
- a coupling mechanism coupling the drive shaft to the driven hub such that torque from the shaft is transferred to the driven hub causing the driven hub to rotate relative to the stationary housing;
- a sealing element disposed between the sleeve insert and the stationary housing;
- and
- a sleeve insert fixed to the driven hub and disposed between the stationary housing and the driven hub to provide a riding surface on which the sealing element slides as the driven hub rotates relative to the stationary housing.
Dependencies are inferred from the claim text.