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US 11,969,810 B2Granted
Work machine
AssigneeKoki Holdings Co., Ltd.
InventorsTakeru Kumakura, Shigeharu Ushiwata
Life of this patent
Estimating the term…
Abstract
Provided is a work machine that has excellent motor support performance. A work machine that has: a motor that has a rotary shaft; a bearing that rotatably supports the rotary shaft; and a motor housing part that houses the motor. The motor housing part can be divided into at least two segments in the axial direction of the rotary shaft. At least one of the two segments: forms an integral structure that cannot be divided; and supports the bearing.
Claims12
A work machine, comprising:
- a motor comprising a rotary shaft;
- a bearing rotatably supporting the rotary shaft;
- a motor housing part housing the motor;
- a battery pack for supplying power to the motor;
- and
- a fan rotating integrally with the rotary shaft;
- wherein the motor housing part is provided with a battery attachment/detachment part to which the battery pack is attached/detached,
- the battery attachment/detachment part comprises two rails engaged with the battery pack,
- the motor housing part is divisible into two segments in an axial direction of the rotary shaft,
- one of the two rails is provided in one of the two segments, and the other of the two rails is provided in the other of the two segments, and
- at least the one of the two segments is configured to form an indivisible integral structure and supports the bearing,
- wherein the motor housing part is provided with an inlet port, and the motor is cooled by air flowing in from the inlet port,
- wherein, by an inner wall provided in the one of the two segments, an inside of the motor housing part is separated into an inner space and an outer space, and the outer space is isolated from a flow path of the air flowing in from the inlet port.
10 more elements
A work machine, comprising:
- a motor comprising a rotary shaft;
- a bearing rotatably supporting the rotary shaft;
- and
- a motor housing part housing the motor;
- wherein the motor housing part is divisible into two segments in an axial direction of the rotary shaft;
- in the motor housing part, electronic parts are clamped by the two segments to be exposed to an outside;
- and one of the electronic parts and other one of the electronic parts are respectively provided in positions different in a rotation direction of the rotary shaft,
- wherein one of the two segments is provided with an inner wall, and an outer wall located outside of the inner wall,
- and, by joining the inner wall to the other of the two segments, the two segments are fixed to each other.
6 more elements
A work machine, comprising:
- a motor comprising a rotary shaft;
- a bearing rotatably supporting the rotary shaft;
- a motor housing part housing the motor;
- and
- a battery pack for supplying power to the motor;
- wherein the motor housing part is provided with a battery attachment/detachment part to which the battery pack is attached/detached,
- the battery attachment/detachment part comprises two rails engaged with the battery pack,
- the motor housing part is divisible into two segments in an axial direction of the rotary shaft,
- one of the two rails is provided in one of the two segments, and the other of the two rails is provided in the other of the two segments, and
- at least the one of the two segments is configured to form an indivisible integral structure and supports the bearing,
- wherein the one of the two segments is provided with an inner wall, and an outer wall located outside of the inner wall,
- and, by joining the inner wall to the other of the two segments, the two segments are fixed to each other.
9 more elements
Dependencies are inferred from the claim text.