Turning device and rotary machine

Patent metadata

Field	Value
Publication number	US-10072529-B2
Application number	US-201414894293-A
Country	US
Kind code	B2
Filing date	Jan 28, 2014
Priority date	Jan 28, 2014
Publication date	Sep 11, 2018
Grant date	Sep 11, 2018

Abstract

A turning device is provided with: a casing; a drive motor provided above the casing; a drive wheel rotated by the drive motor, the drive wheel being supported on one side of a reference plane located on the drive axis of the drive motor and parallel to the vertical direction, the drive wheel being rotatable about a reference line intersecting the reference plane; a driven wheel disposed within the casing, the driven wheel being supported so as to be rotatable about an axis parallel to the reference line, the driven wheel being connected to the drive wheel through an annular member; a first gear wheel coaxially connected to the driven wheel and having a first spur gear; a second gear wheel having a second spur gear meshing with a wheel gear which is provided coaxially with a rotating shaft extending parallel to the reference line, the second spur gear also meshing with the first spur gear of the first gear wheel; an arm member for rotatably supporting the second gear wheel; a movement mechanism for moving the arm member to thereby move the second gear wheel between a meshed position at which the second gear wheel is meshed with the wheel gear and a retracted position at which the second gear wheel is not meshed with the wheel gear; and a cover adapted to mountable and removable from the casing and covering the drive wheel.

First claim

The invention claimed is:

1. A turning device comprising:
a casing;
a driving motor which is attached to be positioned higher than the casing;
a driving wheel which is disposed above the casing, is supported on one side with respect to a reference plane that is parallel to a vertical direction on a driving shaft of the driving motor and, to be rotatable around a reference line that intersects the reference plane, and is rotated by the driving motor;
a driven wheel which is disposed in the casing, is supported to be rotatable around an axis that is parallel to the reference line, and is connected to the driving wheel via an annular member;
a first toothed wheel which is coaxially connected to the driven wheel and has first spur teeth;
a second toothed wheel having second spur teeth that engage with each of a wheel gear that is provided coaxially with a rotary shaft which extends parallel to the reference line, and the first spur teeth of the first toothed wheel;
an arm member which rotatably supports the second toothed wheel;
a moving mechanism which moves the second toothed wheel between an engagement position where the second toothed wheel engages with the wheel gear and a retreat position where the second toothed wheel does not engage with the wheel gear, by moving the arm member;
a cover which is attachable to and detachable from the casing and covers the driving wheel; and
a rotating lever of which one end portion is coaxially connected to the driving wheel via a ratchet mechanism,
wherein a compressor is connected to the rotary shaft on the other side with respect to the reference plane,
wherein the ratchet mechanism restricts rotation of one end portion of the rotating lever, with respect to an axis of the driving wheel, in one direction around the axis, while allowing the rotation thereof in the other direction around the axis,
the moving mechanism includes
a moving lever of which one end portion is rotatably supported by the casing, and
a connection member which is connected to each of the moving lever and the arm member and is configured to move the arm member when the moving lever is rotated, and

the rotating lever and the moving lever are rotated in a direction along the reference line on the same side with respect to the cover.

2. A rotary machine comprising:
a turning device,
wherein the turning device comprising:
a casing;
a driving motor which is attached to be positioned higher than the casing;
a driving wheel which is disposed above the casing, the driving wheel being supported on one side with respect to a reference plane that is parallel to a vertical direction on a driving shaft of the driving motor and, to be rotatable around a reference line that intersects the reference plane, and is rotated by the driving motor;
a driven wheel which is disposed in the casing, is supported to be rotatable around an axis that is parallel to the reference line, and is connected to the driving, wheel via an annular member;
a first toothed wheel which is coaxially connected to the driven wheel and has first spur teeth;
a second toothed wheel having second spur teeth that engage with each of a wheel gear that is provided coaxially with a rotary shaft which extends parallel to the reference line, and the first spur teeth of the first toothed wheel;
an arm member which rotatably supports the second toothed wheel;
a moving mechanism which moves the second toothed wheel between an engagement position where the second toothed wheel engages with the wheel gear and a retreat position where the second toothed wheel does not engage with the wheel gear, by moving the arm member; and
a cover which s attachable to and detachable from the casing and covers the driving wheel,; and
a rotating lever of which one end portion is coaxially connected to the driving wheel via a ratchet mechanism,
wherein a compressor is connected to the rotary shaft on the other side with respect to the reference plane,
wherein the ratchet mechanism restricts rotation of one end portion of the rotating lever, with respect to an axis of the driving wheel, in one direction around the axis, while allowing the rotation thereof in the other direction around the axis,
the moving mechanism includes
a moving lever of which one end portion is rotatably supported by the casing, and
a connection member which is connected to each of the moving lever and the arm member and is configured to move the arm member when the moving lever is rotated, and

the rotating lever and the moving lever are rotated in a direction along the reference line on the same side with respect to the cover.

Assignees

• Mitsubishi Heavy Ind Compressor Corp

Inventors

• Yamada Masataka

Classifications

• F16H3/34

  with gears shiftable otherwise than only axially · CPC title

• F16H59/02

  Selector apparatus · CPC title

• F05D2220/31

  in steam turbines · CPC title

• F16H1/20

  involving more than two intermeshing members · CPC title

• F16H35/18

  Turning devices for rotatable members, e.g. shafts · CPC title