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US 10,077,762 B2Granted
Power generation device and rotating portion support structure
AssigneeJtekt Corporation
InventorsHideki Fujiwara, Takeshi Takaki
Life of this patent
Estimating the term…
Abstract
A power generation device includes a main shaft rotated by an external force, a speed-up gear, a high-speed shaft, a rolling bearing, a power generator, and a one-way clutch disposed between the output gear and the high-speed shaft. In a state where the main shaft is rotating in a positive direction, the one-way clutch integrally rotatably connects the output gear and the high-speed shaft to each other if a rotational speed of the output gear exceeds a rotational speed of the high-speed shaft, and breaks connection between the output gear and the high-speed shaft if the rotational speed of the output gear becomes lower than the rotational speed of the high-speed shaft.
Claims11
A power generation device comprising:
- a main shaft rotated by an external force;
- a speed-up gear comprising a rotation transmission mechanism that increases a speed of rotation of the main shaft, and an output gear that outputs the rotation increased in speed by the rotation transmission mechanism;
- a high-speed shaft that is rotatable by receiving a rotational force of the output gear;
- a rolling bearing that rotatably supports the high-speed shaft;
- a power generator which comprises a drive shaft that rotates by receiving rotation of the high-speed shaft and a rotor that rotates integrally with the drive shaft, and which generates electric power in accordance with rotation of the rotor;
- and
- a one-way clutch which is disposed between the output gear and the high-speed shaft, and in a state where the main shaft is rotating in a positive direction, integrally rotatably connects the output gear and the high-speed shaft to each other if a rotational speed of the output gear exceeds a rotational speed of the high-speed shaft, and breaks connection between the output gear and the high-speed shaft if the rotational speed of the output gear becomes lower than the rotational speed of the high-speed shaft.
4 more elements
A power generation device comprising:
- a main shaft rotated by an external force;
- a speed-up gear comprising a rotation transmission mechanism that increases a speed of rotation of the main shaft, and an output gear that outputs the rotation increased in speed by the rotation transmission mechanism;
- a high-speed shaft that is rotatable by receiving a rotational force of the output gear;
- a rolling bearing that rotatably supports the high-speed shaft;
- and
- a power generator which comprises a drive shaft that rotates by receiving rotation of the high-speed shaft and a rotor that rotates integrally with the drive shaft, and which generates electric power in accordance with rotation of the rotor,
- wherein the high-speed shaft comprises a first shaft section that rotates integrally with the output gear, a second shaft section supported by the rolling bearing, and a connecting section provided between the first shaft section and the second shaft section, and
- wherein the connecting section is a one-way clutch, and in a state where the main shaft is rotating in a positive direction, the one-way clutch integrally rotatably connects the first shaft section and the second shaft section to each other if a rotational speed of the first shaft section exceeds a rotational speed of the second shaft section, and breaks connection between the first shaft section and the second shaft section if the rotational speed of the first shaft section becomes lower than the rotational speed of the second shaft section.
5 more elements
A rotating portion support structure for a power generation device, the power generation device comprising:
- a speed-up gear comprising a rotation transmission mechanism that increases a speed of rotation of a main shaft rotated by an external force, and an output gear that outputs the rotation increased in speed by the rotation transmission mechanism;
- and
- a power generator which comprises a drive shaft that rotates by receiving an output from the speed-up gear and a rotor that rotates integrally with the drive shaft, and which generates electric power in accordance with rotation of the rotor,
- said rotating portion support structure comprising:
- a high-speed shaft that is rotatable by receiving a rotational force of the output gear and that transmits the rotational force to the drive shaft;
- a rolling bearing that rotatably supports the high-speed shaft;
- and
- a one-way clutch that is provided between the output gear and the high-speed shaft, and in a state where the main shaft is rotating in a positive direction, integrally rotatably connects the output gear and the high-speed shaft to each other if a rotational speed of the output gear exceeds a rotational speed of the high-speed shaft, and breaks connection between the output gear and the high-speed shaft if the rotational speed of the output gear becomes lower than the rotational speed of the high-speed shaft.
5 more elements
A rotating portion support structure for a power generation device, the power generation device comprising:
- a speed-up gear comprising a rotation transmission mechanism that increases a speed of rotation of a main shaft rotated by an external force, and an output gear that outputs the rotation increased in speed by the rotation transmission mechanism;
- and
- a power generator which comprises a drive shaft that rotates by receiving an output from the speed-up gear and a rotor that rotates integrally with the drive shaft, and which generates electric power in accordance with rotation of the rotor,
- said rotating portion support structure comprising:
- a high-speed shaft that is rotatable by receiving a rotational force of the output gear and that transmits the rotational force to the drive shaft;
- and
- a rolling bearing that rotatably supports the high-speed shaft,
- wherein the high-speed shaft comprises a first shaft section that rotates integrally with the output gear, a second shaft section supported by the rolling bearing, and a connecting section provided between the first shaft section and the second shaft section, and
- wherein the connecting section is a one-way clutch, and in a state where the main shaft is rotating in a positive direction, the one-way clutch integrally rotatably connects the first shaft section and the second shaft section to each other if a rotational speed of the first shaft section exceeds a rotational speed of the second shaft section, and breaks connection between the first shaft section and the second shaft section if the rotational speed of the first shaft section becomes lower than the rotational speed of the second shaft section.
6 more elements
Dependencies are inferred from the claim text.