Emergency braking system for machine tools
AssigneeRobert Bosch GmbH
InventorThomas Winkler
Life of this patent
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Abstract
An emergency braking system for a machine tool, for the abrupt braking of a rotating shaft, including at least one brake drum and at least one brake shoe which are brought into engagement with one another in order to brake the shaft. According to the present system, the system is configured in such a way that the braking engagement between the brake drum and the brake shoe takes place under the influence of a centrifugal force resulting from the rotation of a shaft as soon as a locking device is triggered.
Claims13
An emergency braking system for a machine tool, for the abrupt braking of a rotating shaft, comprising:
- at least one brake drum;
- at least one brake shoe, wherein the at least one brake drum and the at least one brake shoe are brought into engagement with one another in order to brake the rotating shaft;
- wherein the braking engagement between the brake drum and the brake shoe takes place under the influence of a centrifugal force resulting from the rotation of the rotating shaft when a locking device is released,
- wherein the locking device has an electromagnetic actuator that converts the locking device from a locked position to an unlocked position,
- wherein the rotating shaft is stopped within 50 ms.
A machine tool, comprising:
- an emergency braking system for a machine tool, for the abrupt braking of a rotating shaft, including:
- at least one brake drum;
- at least one brake shoe, wherein the at least one brake drum and the at least one brake shoe are brought into engagement with one another in order to brake the rotating shaft;
- wherein the braking engagement between the brake drum and the brake shoe takes place under the influence of a centrifugal force resulting from the rotation of the rotating shaft when a locking device is released,
- wherein the locking device has an electromagnetic actuator that converts the locking device from a locked position to an unlocked position,
- wherein the rotating shaft is stopped within 50 ms.
An emergency braking system for a machine tool, for the abrupt braking of a rotating shaft, comprising:
- at least one brake drum;
- at least one brake shoe, wherein the at least one brake drum and the at least one brake shoe are brought into engagement with one another in order to brake the rotating shaft;
- wherein the braking engagement between the brake drum and the brake shoe takes place under the influence of a centrifugal force resulting from the rotation of the rotating shaft when a locking device is released,
- wherein the locking device has an electromagnetic actuator that converts the locking device from a locked position to an unlocked position,
- wherein the locking device includes at least one locking bolt extending through openings in a brake shoe bearer.
Dependencies are inferred from the claim text.