DUAL DIRECTION CLUTCH BRAKE

摘要

Embodiments of the present disclosure provide an improved clutch-brake for a PTO unit. In accordance with a first embodiment of the present disclosure, a dual direction clutch-brake with a clutch cup is disclosed. When moved in one direction, the clutch cup engages a clutch pack resulting in the input shaft being engaged with the output shaft. When the clutch cap is moved in the opposite direction, the clutch cup engages a breaking member, for example a cover or casing of the PTO unit, which applies a force to the output shaft opposite to the direction of rotation and thereby stops the output shaft from rotating.

主权项

1. A power takeoff, comprising:
an input gear member configured and adapted to connect to and receive mechanical energy from a transmission, the input gear member including at least one rotating gear friction element, the input gear member rotating about an axis when driven by the transmission; a clutch hub rotatable about the axis, the clutch hub including at least one clutch hub friction element disposed adjacent the at least one rotating gear friction element; an output shaft rotationally connected to the clutch hub, the output shaft configured and adapted to connect to and supply rotational mechanical energy to machinery, the output shaft rotating about the axis when the clutch hub rotates; a clutch cup rotationally connected to the output shaft and movable in the axial direction with respect to the output shaft; and a braking member positioned adjacent the clutch cup; wherein movement of the clutch cup in a first direction
engages the friction elements to rotationally engage the input gear member and the clutch hub, andmoves the clutch cup away from the braking member; and wherein movement of the clutch cup in a second direction
moves the clutch cup toward the braking member and, after sufficient movement, engages the clutch cup with the braking member to retard rotation of the clutch cup and the output shaft, anddisengages the at least one clutch hub friction element and the at least one rotating gear friction element from one another to rotationally disengage the input gear member and the output shaft.