Jaw-type positive locking brake

摘要

Provided is a hydrostatic transmission including a hub having a plurality of radially outwardly protruding teeth circumferentially spaced around the hub and at least one jaw having at least one tooth for engaging teeth on the hub to prevent rotation of the hub, thereby preventing rotation of an output shaft of a motor. When the at least one tooth on the jaw engages teeth on the hub, rotation of the output shaft is prevented by interference rather than friction.

主权项

1. A hydrostatic transmission including:
a hydraulic pump; a hydraulic motor being in fluidic communication with the hydraulic pump and including an output shaft; a hub for mounting a wheel, the hub including a hole for receiving the output shaft of the motor, a hub portion, and a flange portion extending radially outwardly from an outer axial end of the hub portion, the hub portion having axially inwardly from the flange portion, a plurality of radially outwardly protruding teeth circumferentially spaced around the hub portion; and at least one jaw having at least one tooth and at least one cam slot in which a cam is received for moving the at least one jaw between first and second positions, wherein the at least one jaw is movable between the first position where the at least one tooth is disengaged from teeth on the hub portion and the second position where the at least one tooth engages teeth on the hub portion to prevent rotation of the hub.