Electrically Driven Set and Release Hand Brake for Rail Cars

摘要

An apparatus for a hand brake includes a gear assembly, an electric motor coupled to the gear assembly, one or more sensors configured to sense at least one of the released and set states, a controller coupled to the electric motor and to the one or more sensors, the controller is configured to operate the electric motor in accordance with a predetermined logic algorithm so as to move the chain between the released and set states, and a device being movable between a first position wherein the device engages only the hand wheel and wherein the hand wheel is used to move the chain between the released and set states and a second position wherein the device engages both the hand wheel and a gear in the gear assembly and wherein the electric motor is operable to move the chain between the released and set states.

主权项

1. An apparatus for a hand brake having a hand brake housing, a drum mounted for rotation within the hand brake housing and having a chain supported thereon, a mechanism manually operable to move the chain between released and set states, the mechanism at least including a drive shaft and a hand wheel mounted on a distal end of the drive shaft for rotation therewith, the distal end disposed external to a front surface of the hand brake housing, said apparatus comprising:
(a) a power transmission assembly; (b) an electric motor coupled to said power transmission assembly; (c) one or more sensors configured to sense at least one of said released and set states; (d) a controller coupled to said electric motor and to said one or more sensors, said controller is configured to operate said electric motor in accordance with a predetermined logic algorithm so as to move said chain between said released and set states; and (e) a device being movable between a first position wherein said device engages only said hand wheel and wherein said hand wheel is manually operable to move said chain between said released and set states and a second position wherein said device engages both said hand wheel and said power transmission assembly and wherein said electric motor is operable to move said chain between said released and set states.