JPS6062857A - Method of balancing in rotary electric machine - Google Patents

Abstract

PURPOSE:To enable to simply perform a balancing by providing a cylinder having a flange at a core retaining plate of a rotor, and detachably engaging a mounting member having an elasticity integral with a balance piece. CONSTITUTION:Bearings 3 are provided at both ends of a casing 1 which contains a stator 2, and a rotational shaft 5 of a rotor 4 is mounted at the bearings 3. A cylinder 8 is provided at a core retaining plate 6 by providing at the side 4a of the rotor 5, and a flange 8a is formed at the free end of the cylinder 8. A mounting member 11 which is integral with a balance piece 10 and has an elasticity is detachably engaged with the flange 8a, thereby performing a rotary balancing of a rotary electric machine.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a method for balancing the rotation of a rotating electrical machine such as a DC motor.

Already proposed methods for balancing the rotation of rotating electric machines include mounting a flange for mounting a balance piece on the rotating shaft of the rotor and attaching the balance piece to this flange with bolts, or attaching the balance piece to the iron core holding plate. is screwed on.

However, attaching the balance piece to the above flange with bolts or screwing the core holding plate balance piece increases the number of components to be attached and the number of work steps, making it difficult to save labor in mass production. It was difficult to achieve this goal.

In view of the above-mentioned points, the present invention provides a cylindrical body having a flange (flange) on the core holding plate of the rotor, and removes and removes an elastic mounting member that is substantially integral with the balance piece from the flange. The purpose is to insert it from the side and removably fit it, so that it can be easily installed without having to fix it with balance pieces, screws, or bolts, and it is intended to save labor in mass production. This provides a method for balancing the rotation of rotation [1].

Hereinafter, the present invention will be described with reference to an illustrated embodiment.

In the figure, reference numeral 1 denotes a casing that houses a datater 2 in a rotating electric machine. Bearings 3 are provided on both sides of the casing 1, and the bearings 3 are equipped with a rotor 4.
A rotating shaft 5 is rotatably mounted.

Further, a core holding plate 6 and a winding 7 are provided on the side portion 4a of the rotor 4, and a cylindrical body 8 is provided on the inner circumference of the winding 7. It is being Further, a flange portion 8a is formed at the free end of this cylinder 8, and an insulating material 9 is pasted on the outer periphery of this cylinder 8.

Furthermore, an elastic mounting member 11 that is substantially integral with the balance piece 10 is provided on the flange portion 8a so as not to be elastically removed outwardly.

That is, since the mounting member 11 integrated with the balance piece 10 can be inserted from the side and removably fitted to the collar 8a, the balance piece 1
0 installation is easy and can save labor in mass production.

Incidentally, during assembly, one end of the mounting member 11 integrated with the balance piece 10 can be inserted between the flange 8a and the insulating material 9, and the other end can be bent as shown by the chain line to be attached to the flange 8a. You are free to change the design as you like.

As described above, according to the present invention, the core holding plate 6 of the rotor 4 is provided with the cylindrical body 8 having the flange 8a, and the flange 8a has elasticity that is substantially integrated with the balance piece 10. Since this is a method for balancing the rotating electrical machine by elastically fitting the mounting member 11 in a detachable manner so that it does not fall off, it not only saves labor in mass production, but also reduces the number of parts. Furthermore, since the cylinder 8 is provided on the inner circumferential side of the winding 7, the winding 1i! The mounting member 11 integrated with the balance piece 10 is elastically attached to the flange 8a, so there is no risk of it coming off even if it is subjected to a centrifugal saw due to the rotation of the rotor 4. It has great practical effects, such as not having any at all.

[Brief explanation of the drawing]

The figure is an explanatory diagram of a method of balancing the rotation of the rotation NII according to the present invention. 4... Rotor, 6... Iron core holding plate, 8... Cylindrical body,
8a...Trim part, 10...Balance piece, 11...
・Mounting parts. Patent applicant Shibaura Seisakusho Co., Ltd.

Claims (1)

[Claims] A cylindrical body 8 is provided on the core press plate 6 provided on the side 4a of the rotor 4 of the rotating electric machine, and a flange 8a is formed at the free end of the cylindrical body 8, which is integral with the balance piece 10 and is elastic. A method for balancing the rotation of a rotating electrical machine, comprising: removably fitting a mounting member 11 having the above into the flange 8a to balance the rotation of the rotating electrical machine.