Mechanical motor soft start and systems and methods relating thereto
AssigneeRotochopper, Inc.
InventorsJames Othmar Brick, Nicholas Daniel Lieser
Life of this patent
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Abstract
A system of providing a mechanical soft start of a load driven by an electrical motor is provided. The system includes, in addition to the rotor driven by the electric motor during normal operation, a drive belt coupled to both the electric motor and the rotor for communicating mechanical power from the electric motor to the rotor. The system further includes a secondary motor, and a primary roller coupled to the secondary motor, wherein the roller is selectively engaged with the drive belt during a mechanical soft-start to communicate mechanical power from the secondary motor to the rotor without requiring mechanical power from primary motor.
Claims20
A system comprising:
- a primary motor;
- a rotor;
- a drive belt coupled to both the motor and the rotor, wherein the drive belt communicates mechanical power from the motor to the rotor;
- a secondary motor, wherein the second motor generates less horsepower than the primary motor;
- and
- a primary roller coupled to the secondary motor, wherein the roller is selectively engaged with the drive belt during a mechanical soft-start to communicate mechanical power from the secondary motor to the rotor without requiring mechanical power from primary motor, and wherein the primary motor is utilized to provide mechanical power to the rotor during normal operation following the mechanical soft start.
An industrial grinder comprising:
- a grinding element having a rotor;
- an electrical motor;
- a drive belt that couples the electrical motor to the rotor of the grinding element;
- a hydraulic motor;
- and
- a primary roller coupled to the hydraulic motor, wherein the roller is selectively engaged with the drive belt during a mechanical soft-start to communicate mechanical power from the hydraulic motor to the rotor of the grinding element without requiring mechanical power from the electrical motor.
An industrial grinder comprising:
- a grinding element having a rotor;
- a primary drive belt;
- an electrical motor coupled to the rotor of the grinding element by the primary drive belt;
- a hydraulic motor;
- a secondary drive belt;
- and
- a primary roller coupled to the hydraulic motor, wherein the roller is selectively engaged with the secondary drive belt during a mechanical soft-start to communicate mechanical power from the hydraulic motor to the rotor of the grinding element without requiring mechanical power from the electrical motor.
Dependencies are inferred from the claim text.