Clutch and brake for a conveyor drive roll
First Claim
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1. An intermittent internal drive system for a rum conveyor, wherein said conveyor is started, stopped and restarted repeatedly, and comprising:
- a drive drum defining a hollow interior;
a drive motor mounted within and enclosed by said drum and operable to rotate said drum;
a clutch located within and enclosed by said drum and connected to said motor and operable to transmit rotation from said motor to said drum, and being operable to discontinue transmission from said motor to said drum; and
a brake within and enclosed by said drum and connected to said drum and being operable to stop rotation of said drum, and being operable to permit rotation of said drum, and an actuator, wherein the intermittent internal drive system is operable to maintain the clutch in a disengaged position, and the brake in an engaged position such that the drum is in a rotating stopped position; and
wherein the actuator is operable in substantially the same moment to activate the clutch to achieve an engaged position, and further to activate the brake to achieve a disengaged position, thereby transferring rotation from said motor to said rum and permitting said drum to rotate.
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Abstract
An intermittent internal drive system for a drum conveyor, where the conveyor is started, stopped and restarted and having a drive drum with a hollow interior, a drive motor mounted within and enclosed by the drum for rotating the drum, a clutch located within and enclosed by the drum and connected to the motor and for transmitting rotation from the motor to the drum, and, a brake within and enclosed by the drum and connected to the drum for restraining rotation of the drum.
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Citations
14 Claims
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1. An intermittent internal drive system for a rum conveyor, wherein said conveyor is started, stopped and restarted repeatedly, and comprising:
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a drive drum defining a hollow interior;
a drive motor mounted within and enclosed by said drum and operable to rotate said drum;
a clutch located within and enclosed by said drum and connected to said motor and operable to transmit rotation from said motor to said drum, and being operable to discontinue transmission from said motor to said drum; and
a brake within and enclosed by said drum and connected to said drum and being operable to stop rotation of said drum, and being operable to permit rotation of said drum, and an actuator, wherein the intermittent internal drive system is operable to maintain the clutch in a disengaged position, and the brake in an engaged position such that the drum is in a rotating stopped position; and
wherein the actuator is operable in substantially the same moment to activate the clutch to achieve an engaged position, and further to activate the brake to achieve a disengaged position, thereby transferring rotation from said motor to said rum and permitting said drum to rotate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An intermittent internal drive system for a drum conveyor, wherein said conveyor is started, stopped and restarted repeatedly, and comprising:
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a drive drum defining a hollow interior;
a drive motor mounted within and enclosed by said drum and operable to rotate said drum;
a clutch located within and enclosed by said drum and connected to said motor and operable to discontinue transmission from said motor to said drum; and
, a brake within and enclosed by said drum and connected to said drum and being operable to stop rotation of said drum; and
being operable to permit rotation of said drum;
wherein said clutch include a moveable member, and including an electromagnetic device operable to cause attraction of said moveable member;
wherein said moveable member include a resilient spring ring and an armature normally biased away from said electromagnetic device and being moveable in response to said electromagnetic device to move towards said electromagnetic device.
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12. An intermittent internal drive system for a drum conveyor, wherein said conveyor is started, stopped and restarted repeatedly, and comprising
a drive drum defining a hollow interior, a drive motor mounted within and enclosed by said drum and operable to rotate said drum, a clutch located within and enclosed by said drum and connected to said motor and operable to discontinue transmission from said motor to said drum, and, a brake within and enclosed by said drum and connected to said drum and being operable to stop rotation of said drum, and being operable to permit rotation of said drum, wherein said brake includes a non-rotatable brake member, and a rotatable brake member coupled to said drum and rotatable therewith, and an electromagnetic device operable to cause interengagement between said nonrotatable member and said rotatable member for restraining rotation of said drum.
Specification