JPS609343A - Motor bearing - Google Patents
Motor bearingInfo
- Publication number
- JPS609343A JPS609343A JP11764883A JP11764883A JPS609343A JP S609343 A JPS609343 A JP S609343A JP 11764883 A JP11764883 A JP 11764883A JP 11764883 A JP11764883 A JP 11764883A JP S609343 A JPS609343 A JP S609343A
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- motor
- motor shaft
- shaft
- loosely
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/081—Structural association with bearings specially adapted for worm gear drives
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2205/00—Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
- H02K2205/03—Machines characterised by thrust bearings
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は起動力の弱い小型モータの軸受装置に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a bearing device for a small motor with a weak starting force.
従来例の構成とその問題点
一般に起動力の弱い小型モータ、たとえば永久磁石モー
タは第１図に示すように永久磁石よりなるロータ１と、
対の磁極２，２をもつステータ３と、ステータ３に巻か
れた巻線４よりなっている。Conventional Structure and Problems Generally, a small motor with weak starting force, such as a permanent magnet motor, has a rotor 1 made of permanent magnets, as shown in FIG.
It consists of a stator 3 having a pair of magnetic poles 2, 2, and a winding 4 wound around the stator 3.
この永久磁石モータは、ロータ１のＮ 、 Ｓ極が磁極
２，２に対応した状態、すなわちａ−ａの方向に向った
状態で静止しており、前記巻線４に交流電流を流すこと
によりｂ−ｂの方向へ磁力線が生じ、ロータ１は回転し
ようとする。ところで、この種のモータは非常に起動ト
ルクが小さく、モータ軸の両端部を枢支する軸受は固定
部材に固定されており、起動時においてモータ軸にスラ
ストおよびラジアルの荷重が直接にかかり、起動しにく
いものであり、特にモータ軸にウオームギヤを設けた場
合にはスラスト荷重がモータ軸にかかり、起動しない場
合があった。This permanent magnet motor is stationary with the N and S poles of the rotor 1 corresponding to the magnetic poles 2 and 2, that is, facing in the a-a direction, and by passing an alternating current through the winding 4, Lines of magnetic force are generated in the direction bb, and the rotor 1 attempts to rotate. By the way, this type of motor has a very low starting torque, and the bearings that pivot both ends of the motor shaft are fixed to a fixed member, so thrust and radial loads are directly applied to the motor shaft at the time of startup. In particular, when a worm gear is provided on the motor shaft, a thrust load is applied to the motor shaft, which may prevent the motor from starting.
発明の目的
本発明は上記問題に留意し、起動時においてモータ軸に
加わる荷重を軽減し、モータの起動を良好に行なわせる
軸受装置を提供しようとするものである。OBJECTS OF THE INVENTION The present invention takes the above-mentioned problems into consideration and provides a bearing device that reduces the load applied to the motor shaft during startup and allows the motor to start smoothly.
発明の構成
前記目的を達成するため、本発明はモータの軸受を、軸
受保持体によって可動小間隙をもたせて緩く保持した軸
受装置の構成としたものであり、モータ起動時にモータ
軸に加わる荷重を軽減し、起動トルクが小さいモータで
あっても円滑に起動できるものである。Structure of the Invention In order to achieve the above object, the present invention has a structure of a bearing device in which a motor bearing is loosely held with a small movable gap by a bearing holder, and the load applied to the motor shaft when the motor is started is reduced. Even a motor with a small starting torque can be started smoothly.
実施例の説明
以下本発明の一実施例を第２図および第３図にもとづき
説明する。図において、６はモータ、６はモータ軸、７
はモータ軸６に取付けられたウオーム、８はウオームホ
イールである。前記モータ軸６の一端にはスラスト受部
材９を対向させており、モータ軸６の他端は軸受１０に
よって枢支されている。この軸受１ｏは軸支孔１１と、
この軸支孔１１より外部に通じる空気逃がし孔１２を有
している。また、この軸受１０は直方体状に形成され、
軸受保持体１３によって緩く保持され、すなわち軸受１
ｏの側面および後面と軸受保持体１３の各受面の間に可
動小間隙Ａ、Ｂ、０４もたせている。DESCRIPTION OF THE EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 2 and 3. In the figure, 6 is the motor, 6 is the motor shaft, and 7 is the motor.
is a worm attached to the motor shaft 6, and 8 is a worm wheel. A thrust bearing member 9 is opposed to one end of the motor shaft 6, and the other end of the motor shaft 6 is pivotally supported by a bearing 10. This bearing 1o has a shaft support hole 11,
The shaft support hole 11 has an air escape hole 12 that communicates with the outside. Further, this bearing 10 is formed in a rectangular parallelepiped shape,
is held loosely by the bearing holder 13, i.e. the bearing 1
Small movable gaps A, B, and 04 are also provided between the side and rear surfaces of o and each receiving surface of the bearing holder 13.
上記構成において、モータ５を起動したとき、モータ軸
６にスラストおよびラジアルの荷重が加わるが、軸受１
０が軸受保持体１３に緩るく保持されていることから、
前記軸受１０が軸受保持体１３部において若干移動し、
すなわち起動時のモータ軸６に対する荷重が軽減する。In the above configuration, when the motor 5 is started, thrust and radial loads are applied to the motor shaft 6, but the bearing 1
Since 0 is loosely held by the bearing holder 13,
The bearing 10 moves slightly in the bearing holder 13,
In other words, the load on the motor shaft 6 at startup is reduced.
したがって、モータ５は起動トルクが小さいにもかかわ
らず円滑に起動できるものである。。Therefore, the motor 5 can be started smoothly even though the starting torque is small. .
、 なお実施例において軸受は長刀体としたが、円柱体
としてもよく、本発明は図示実施例に限られるものでは
ない。In the embodiment, the bearing is a long sword, but it may also be a cylinder, and the present invention is not limited to the illustrated embodiment.
発明の効果
前記実施例の説明より明らかなように本発明のモータの
軸受によれば、モータ起動時においてモータ軸に大きな
荷重が加わらなく、またモータ軸が曲がるようなことも
なく、起動トルクが小さいにもかかわらず円滑な起動が
できるものであり、軸受を軸受保持体でゆるく保持する
という簡単な構成で上記の効果が得られ、その価値の大
きいものである。Effects of the Invention As is clear from the description of the above embodiments, according to the motor bearing of the present invention, a large load is not applied to the motor shaft when the motor is started, the motor shaft is not bent, and the starting torque is reduced. Although it is small, it can be started smoothly, and the above effects can be obtained with a simple structure in which the bearing is held loosely by a bearing holder, making it highly valuable.
第１図は起動トルクの小さいモータの例を示す構成図、
第２図は本発明の一実施例のモータ装置の斜視図、第３
図はその軸受の断面図である。
６・・・・・・モータ、６・・・・・・モータ軸、１ｏ
・・・・・軸受、１３・・・・・・軸受保持体。
第１図
第２図Figure 1 is a configuration diagram showing an example of a motor with small starting torque.
FIG. 2 is a perspective view of a motor device according to an embodiment of the present invention, and FIG.
The figure is a sectional view of the bearing. 6...Motor, 6...Motor shaft, 1o
... Bearing, 13 ... Bearing holder. Figure 1 Figure 2
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11764883A JPS609343A (en) | 1983-06-29 | 1983-06-29 | Motor bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11764883A JPS609343A (en) | 1983-06-29 | 1983-06-29 | Motor bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS609343A true JPS609343A (en) | 1985-01-18 |
| JPH036731B2 JPH036731B2 (en) | 1991-01-30 |
Family
ID=14716878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11764883A Granted JPS609343A (en) | 1983-06-29 | 1983-06-29 | Motor bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS609343A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0464965U (en) * | 1990-10-12 | 1992-06-04 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57206245A (en) * | 1981-06-12 | 1982-12-17 | Fuji Electric Co Ltd | Geared motor |
-
1983
- 1983-06-29 JP JP11764883A patent/JPS609343A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57206245A (en) * | 1981-06-12 | 1982-12-17 | Fuji Electric Co Ltd | Geared motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0464965U (en) * | 1990-10-12 | 1992-06-04 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH036731B2 (en) | 1991-01-30 |
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