초록 ▼

A motor brake apparatus includes an improved torque adjustment mechanism. The adjustment mechanism includes an adjusting nut having a outer ring groove aligned with an inner ring groove defined in a receiving bore of the brake housing structure. A snap ring is located in the aligned grooves to conne

A motor brake apparatus includes an improved torque adjustment mechanism. The adjustment mechanism includes an adjusting nut having a outer ring groove aligned with an inner ring groove defined in a receiving bore of the brake housing structure. A snap ring is located in the aligned grooves to connect the housing structure and adjusting ring while allowing free rotation therebetween. Inner threads of the adjusting nut engage outer threads of a spring pushing element such that rotation of the adjusting nut causes axial movement of the pushing element. The pushing element engages one or more springs which are thereby compressed or released, depending on which axial direction the pushing element is moved. The spring force varied in this manner results in varying levels of braking torque.

대표청구항 ▼

[ What is claimed is:] [1.] A braking apparatus for use with a rotatable shaft, said braking apparatus comprising:a frictional disk connected to said shaft and rotatable therewith;an armature plate axially movable into and out of engagement with said frictional disk;an electromagnetic coil assembly

[ What is claimed is:] [1.] A braking apparatus for use with a rotatable shaft, said braking apparatus comprising:a frictional disk connected to said shaft and rotatable therewith;an armature plate axially movable into and out of engagement with said frictional disk;an electromagnetic coil assembly operative to effect axial movement of said armature plate in a first axial direction;at least one spring element applying an axial spring force to said armature plate in a second axial direction opposite to said first axial direction; andan adjusting mechanism engaging said at least one spring element to permit adjustment of said spring force upon rotation of a rotatable adjusting element, said rotatable adjusting element being substantially axially stationary during rotation thereof with respect to a housing structure of said braking apparatus, said adjusting mechanism including an annular ring interconnecting said adjusting element and said housing structure to permit relative rotation therebetween.