Hydraulic Pump with Integrated Clutch

摘要

A hydraulic pump with an integrated clutch includes an outer cone coupled to a drive gear or a driven gear and having a frictional inner surface, and an inner cone arranged inside the outer cone, coupled to the drive gear or the driven gear and having a frictional outer surface, wherein the inner and outer cones are rotationally and axially movable with respect to each other. A spring is coupled to the inner cone or the outer cone and acts to axially displace the inner cone with respect to the outer cone in a first direction. An actuator including a rod and a piston is coupled to the inner cone or the outer cone and acts to overcome the force of the spring to axially displace the inner cone with respect to the outer cone in a second direction being axially opposite to the first direction.

主权项

1. A hydraulic pump with an integrated clutch, comprising:
a pump housing; a drive shaft and a driven shaft disposed in the pump housing; a clutch housing coupled to the pump housing; an outer cone disposed in the clutch housing, the outer cone coupled to at least one of the drive shaft and the driven shaft and having an inner surface; an inner cone arranged inside the outer cone, the inner cone coupled to at least one of the drive gear and the driven gear and having an outer surface, wherein the inner cone and the outer cone are rotationally and axially movable with respect to each other and wherein at least one of the inner surface of the outer cone and the outer surface of the inner cone has a frictional material; a spring coupled to at least one of the inner cone and the outer cone, wherein said spring acts to axially displace the outer surface of the inner cone with respect to the inner surface of the outer cone in a first direction; and an actuator coupled to at least one of the inner cone and the outer cone, the actuator comprising a rod and a piston, wherein the piston is actuated by a hydraulic force supplied by the pump, and wherein the actuator acts to overcome the force of the spring and to axially displace the outer surface of the inner cone with respect to the inner surface of the outer cone in a second direction, the second direction being axially opposite to the first direction.