JP2012147590A - Rotating electric machine and method for manufacturing rotating electric machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotating electric machine and a method for manufacturing the rotating electric machine that can correctly incorporate a rotor inside a stator without using a dedicated assembly device for the rotating electric machine.SOLUTION: A rotating electric machine comprises: a flange 15 for rotatably supporting a rotor 11 where a permanent magnet 13 is arranged; a frame 16 for supporting a stator 12 where a winding 14 is arranged; a guide bolt 19 arranged to the flange 15 for guiding when the frame 16 is installed to the flange 15; a guide hole 16a for inserting the guide bolt 19 formed in the frame 16; four protrusions 1 formed on the flange 15 in a circumferential direction at equal intervals; and four bolts 2 penetrating each of the protrusions 1 in a radial direction and of which tip ends are adjacent to the frame.

Description

  The present invention relates to a rotating electrical machine and a method for manufacturing the rotating electrical machine.

Generally, rotary electric machines such as an electric motor and a generator having a configuration in which a rotor is disposed inside a stator are known.
FIG. 3 is a cross-sectional view showing a configuration of a conventional rotary electric machine.
As shown in FIG. 3, in the conventional rotating electric machine, a shaft 17 on which a rotor 11 is installed is rotatably installed on a flange 15 via a bearing 18, and then a stator 12 having a winding 14 is installed. By attaching the frame 16 to the flange 15, the rotor 11 is rotatably incorporated in the stator 12.

  In the conventional rotating electric machine, the guide hole 16 a is provided in the frame 16 and the guide bolt 19 is provided in the flange 15 so that the rotor 11 in which the permanent magnet 13 is installed is incorporated in the stator 12. In addition, the frame 16 is attached to the flange 15 while being guided by inserting a guide bolt 19 into the guide hole 16a. A gap for assembling is provided between the guide hole 16 a and the guide bolt 19.

  However, since the magnetic force of the permanent magnet 13 is strong, the permanent magnet 13 and the stator 12 adhere to each other when the frame 16 is displaced from the predetermined installation position by the gap between the guide hole 16a and the guide bolt 19. The rotor 11 cannot be rotated. For this reason, conventionally, as a method of assembling a rotating electrical machine, a method of assembling a rotating electrical machine using a dedicated rotating electrical machine assembling apparatus is known (for example, see Patent Documents 1 and 2 below). .

JP 2010-226952 A JP 2002-218713 A

However, the conventional method for assembling a rotating electrical machine requires a dedicated rotating electrical machine assembling apparatus, and thus requires a space for using the rotating electrical machine assembling apparatus.
In addition, when the rotary electric machine is assembled, it is necessary to separately prepare a dedicated rotary electric machine assembling apparatus, which causes a problem that the manufacturing cost of the rotary electric machine increases.

  In view of the above, an object of the present invention is to provide a rotating electric machine and a method of manufacturing the rotating electric machine that can correctly incorporate the rotor inside the stator without using a dedicated rotating electric machine assembly apparatus. .

A rotating electric machine according to a first invention for solving the above-described problem is
A flange that rotatably supports the rotor on which the permanent magnet is installed;
A frame that supports the stator on which the windings are installed;
A guide bolt installed on the flange for guiding when the frame is attached to the flange;
A guide hole into which the guide bolt formed in the frame is inserted;
Four protrusions formed at equal intervals in the circumferential direction on the flange;
Four bolts penetrating each of the protrusions in a radial direction and having a tip in contact with the frame are provided.

A method for manufacturing a rotary electric machine according to a second invention for solving the above-described problems is as follows.
In the rotary electric machine according to the first invention,
The gap between the stator and the permanent magnet installed on the rotor is adjusted by tightening or loosening the four bolts.

  ADVANTAGE OF THE INVENTION According to this invention, the manufacturing method of the rotary electric machine which can correctly integrate a rotor in a stator, and a rotary electric machine can be provided, without using a dedicated rotary electric machine assembly apparatus.

It is sectional drawing of the rotary electric machine which concerns on the Example of this invention. It is a top view of the rotary electric machine which concerns on the Example of this invention. It is sectional drawing which showed the structure of the conventional rotary electric machine.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out a rotating electrical machine and a method for manufacturing a rotating electrical machine according to the present invention will be described with reference to the drawings.

Embodiments of a rotating electric machine and a method of manufacturing the rotating electric machine according to the present invention will be described below.
FIG. 1 is a cross-sectional view illustrating a configuration of a rotating electrical machine according to the present embodiment. FIG. 2 is a plan view showing the configuration of the rotating electric machine according to the present embodiment. 1 shows a cross-sectional view taken along the line AA in FIG.

  As shown in FIGS. 1 and 2, the rotary electric machine according to this embodiment includes a winding 14 after a shaft 17 on which a rotor 11 is installed is rotatably installed on a flange 15 via a bearing 18. By attaching the frame 16 on which the stator 12 is installed to the flange 15, the rotor 11 is rotatably incorporated in the stator 12.

  Further, in the rotary electric machine according to the present embodiment, the guide hole 16 a is provided in the frame 16 and the flange 15 is guided so that the rotor 11 in which the permanent magnet 13 is installed is incorporated in the stator 12. After the bolt 19 is provided, the frame 16 is attached to the flange 15 while being guided by inserting the guide bolt 19 into the guide hole 16a. A gap for assembling is provided between the guide hole 16 a and the guide bolt 19.

  Furthermore, in the rotary electric machine according to the present embodiment, four protrusions 1 are formed on the flange 15 at equal intervals in the circumferential direction. A screw hole is formed in each protrusion 1 in the radial direction, and a bolt 2 is screwed into the screw hole, whereby the bolt 2 passes through the protrusion 1 in the radial direction and the tip of the bolt 2 is in contact with the flange 15. Thereby, the flame | frame 16 can be pushed with the volt | bolt 2 from four directions at equal intervals in the circumferential direction.

  In the rotating electrical machine and the manufacturing method of the rotating electrical machine according to the present embodiment, the frame 16 is moved by tightening or loosening the four bolts 2 respectively, and the permanent magnet 13 installed on the stator 12 and the rotor 11. The gap between the two can be adjusted.

  For this reason, in the rotating electrical machine and the manufacturing method of the rotating electrical machine according to the present embodiment, the stator 12 can be moved by the tightening force of the bolt 2 from four directions at equal intervals in the circumferential direction. The rotor 11 can be rotated from the state in which the permanent magnets 13 installed on the rotor 12 and the rotor 11 are adhered to each other by a magnetic force to the state in which there is a gap between the stator 12 and the rotor 11.

  Therefore, according to the rotating electrical machine and the manufacturing method of the rotating electrical machine according to the present embodiment, the rotating electrical machine that can correctly incorporate the rotor inside the stator without using a dedicated rotating electrical machine assembly apparatus is provided. be able to.

  The present invention can be used, for example, in a rotating electrical machine such as an electric motor or a generator having a configuration in which a rotor is disposed inside a stator, and a method for manufacturing the rotating electrical machine.

1 Protrusion 2 Bolt 11 Rotor 12 Stator 13 Permanent Magnet 14 Winding 15 Flange 16 Frame 16a Guide Hole 17 Shaft 18 Bearing 19 Guide Bolt

Claims (2)

A flange that rotatably supports the rotor on which the permanent magnet is installed;
A frame that supports the stator on which the windings are installed;
A guide bolt installed on the flange for guiding when the frame is attached to the flange;
A guide hole into which the guide bolt formed in the frame is inserted;
Four protrusions formed at equal intervals in the circumferential direction on the flange;
A rotating electric machine comprising four bolts that penetrate each of the protrusions in a radial direction and have a tip in contact with the frame. The rotating electrical machine according to claim 1,
A method of manufacturing a rotating electrical machine, wherein a gap between the stator and a permanent magnet installed on the rotor is adjusted by tightening or loosening four bolts.

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