Midwest Brake Bond Company

Dave Keener

A clutch unit has an oil pump which is powered by the input shaft and an oil pump which is powered by the output shaft. The oil pump powered by the input shaft pumps oil in both a clockwise and counterclockwise rotation of the input shaft. The oil flow is controlled by a unique bi-directional check valve which automatically selects the passage through which oil is being pumped. The oil pump powered by the output shaft provides oil to the friction plates of the clutch only when the clutch is engaged.

Bi-directional clutch unit

A drive unit for a press uses an oil shear brake and an oil shear clutch which are located axially along the output member of the drive unit. A multiple piece piston moves between a brake applied/clutch disengaged position to a brake released/clutch engaged position under the influence of a hydraulic pressure. Cooling and lubrication oil is provided to the drive unit through the output member and lubricating oil is received from the drive member through a stationary support member. An adjustment member is capable of adjusting the gap between the piston and the clutch and brake units in order to eliminate any overlap between these two units.

Press drive with oil shear clutch/brake units

A press drive has an oil shear clutch and an oil shear brake located within a chamber defined by a housing. The chamber is filled with lubricating oil. A fluid passage is formed from the chamber through an output member and then to the friction discs of the clutch and brake. The bore through the output member includes a dam which retains a specified amount of lubricating oil within the bore. A fan cover is attached to the housing and it includes a pair of wing extensions that extend outwardly of the housing. The wing extensions direct air flow from a fan within the fan cover over the outer surface of the housing.

Growing community of inventors

Port Huron, MI, United States of America

Dave Keener