KR0126245Y1 - Bearing supporting device of a motor - Google Patents

Bearing supporting device of a motor Download PDF

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Publication number
KR0126245Y1
KR0126245Y1 KR2019950000927U KR19950000927U KR0126245Y1 KR 0126245 Y1 KR0126245 Y1 KR 0126245Y1 KR 2019950000927 U KR2019950000927 U KR 2019950000927U KR 19950000927 U KR19950000927 U KR 19950000927U KR 0126245 Y1 KR0126245 Y1 KR 0126245Y1
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KR
South Korea
Prior art keywords
bearing
bearing support
support device
electric motor
end bracket
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Application number
KR2019950000927U
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Korean (ko)
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KR960027851U (en
Inventor
김성대
Original Assignee
구자홍
엘지전자주식회사
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Priority to KR2019950000927U priority Critical patent/KR0126245Y1/en
Publication of KR960027851U publication Critical patent/KR960027851U/en
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Publication of KR0126245Y1 publication Critical patent/KR0126245Y1/en

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/15Mounting arrangements for bearing-shields or end plates
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/24Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)
  • Mounting Of Bearings Or Others (AREA)

Abstract

본 고안은 전동기의 베어링지지장치에 관한 것으로서, 본 고안의 목적은 베어링고정을 위한 베어링지지장치에 베어링과 선팽창계수가 비슷한 금속재부싱을 장착하여 전동기 작동시 발열에 의해 베어링지지장치의 열팽창에 따른 베어링의 유동이 방지되어 베어링의 수명이 연장되며 베어링의 소음이 감소되는 전동기의 베어링지지장치를 제공하는데 있다.The present invention relates to a bearing support device for an electric motor, and an object of the present invention is to attach a metal bushing having a coefficient of linear expansion and a bearing to a bearing support device for fixing a bearing, so that the bearing may be subjected to thermal expansion of the bearing support device due to heat generation during operation of the motor. It is to provide a bearing support device for an electric motor which prevents the flow of oil and thus prolongs the life of the bearing and reduces the noise of the bearing.

이와같은 목적을 실현하기 위한 본 고안에 따른 전동기의 베어링지지장치는 전동기의 구성물이 내장되는 양측이 오픈된 원통형상의 하우징의 양측을 덮는 축공 및 베어링고정을 위한 베어링지지장치인 베어링지지부가 형성된 앤드브라켓과, 상기 베어링지지부에 압입되는 베어링과 선팽창계수가 비슷한 금속재 부싱이 포함되는 것을 본 고안의 요지로 한다.The bearing support device for an electric motor according to the present invention for achieving the above object is an end bracket having a bearing hole for bearing shaft and bearing support device for fixing both sides of the cylindrical housing in which both sides of the motor components are opened. And a metal bushing having a linear expansion coefficient similar to that of the bearing pressed into the bearing support portion.

Description

전동기의 베어링 지지장치Bearing support device of electric motor

본 고안은 전동기의 베어링 지지장치에 관한 것으로, 특히 베어링과 선팽창계수가 비슷한 금속재 부싱을 엔드브라켓과 일체화로 형성시킴으로써 전동기 작동시 열팽창에 따른 베어링의 유동이 방지하여 베어링의 수명을 연장시키고 베어링의 소음을 감소시킨 전동기의 베어링 지지장치에 관한 것이다.The present invention relates to a bearing support device for an electric motor, and in particular, a metal bushing having a linear expansion coefficient similar to that of the bearing is integrally formed with the end bracket to prevent the flow of the bearing due to thermal expansion during the operation of the motor, thereby prolonging the life of the bearing and the noise of the bearing. It relates to a bearing support device of the motor with reduced.

일반적으로, 베어링은 전동기의 회전축을 지지하고 마찰력을 감소시켜 회전축의 회전운동을 원활하게 하기 위하여 사용된다.In general, the bearing is used to support the rotating shaft of the motor and to reduce the friction force to facilitate the rotational movement of the rotating shaft.

제1도는 종래의 전동기 구성을 나타낸 단면도로서, 고정자(40) 및 회전축(60)이 압입된 회전자(50)등이 내장되는 양측이 오픈된 원통 형상의 하우징(10)과 하우징(10)의 오픈된 양측을 덮는 알루미늄재로 성형된 엔드브라켓(20)으로 구성된다.1 is a cross-sectional view showing a conventional electric motor configuration, wherein both sides of the cylindrical housing 10 and the housing 10 in which the stator 40 and the rotor 50 into which the rotating shaft 60 is press-fitted are built are opened. It is composed of an end bracket 20 formed of an aluminum material covering both open sides.

상기 엔드브라켓(20)은 축공(20b) 및 축공(20b) 주연부에 베어링(30)이 압입 고정되는 베어링 지지장치인 베어링지지부(20a)가 형성된다.The end bracket 20 is formed with a bearing support 20a, which is a bearing support device in which the bearing 30 is press-fitted and fixed to the axial hole 20b and the axial hole 20b.

또한, 베어링(30)은 베어링 지지부(20a)에 압입고정되는 고정체로서의 외륜(30a)과, 회전축(60)에 압입되어 회전되는 회전체로서의 내륜(30b)과, 내ㆍ외륜(30b)(30a) 사이에 개재되어 구름운동하는 복수개의 볼(30c)로 구성된다.In addition, the bearing 30 has an outer ring 30a as a fixed body that is press-fitted to the bearing support 20a, an inner ring 30b as a rotating body that is pressed into the rotating shaft 60, and an inner and outer ring 30b ( Interposed between 30a) is composed of a plurality of balls (30c) to the cloud movement.

상기 구성에 의하여, 상기 고정자(40)에 전류가 공급되어 자속이 발생하게 되면 이 전류가 회전자(50)에 유도되어 회전축(60)을 회전시키게 된다.By the above configuration, when a current is supplied to the stator 40 to generate magnetic flux, the current is induced in the rotor 50 to rotate the rotating shaft 60.

이때, 베어링(30)은 내륜(30b)이 회전축(60)에 압입되어 동일회전하며, 외륜(30a)이 엔드브라켓(20)의 베어링 지지부(20a)에 고정됨으로써, 외륜(30a)과 내륜(30b) 사이에 개재된 복수개의 볼(30c)이 회동되어 회전축(60)의 지지 및 회전마찰을 감소하게 된다.At this time, the bearing 30 is rotated by the inner ring (30b) is pressed in the rotating shaft 60, the outer ring (30a) is fixed to the bearing support portion 20a of the end bracket 20, the outer ring (30a) and the inner ring ( A plurality of balls (30c) interposed between 30b) is rotated to reduce the support and rotational friction of the rotating shaft 60.

그런데, 이와 같이 구성된 종래의 전동기의 베어링지지장치에 있어서는, 전동기 작동시 고정자(40) 및 회전자(50) 등에서 열이 발생되어 하우징(10) 및 엔드브라켓(20) 등에 전도되며, 이 전도된 열에 의해 알루미늄재로 성형된 엔드브라켓(20)이 열팽창된다. 이때 베어링 지지부(20a)와 베어링 지지부(20a)에 압입고정된 베어링(30)의 외륜(30a)간에는 선팽창계수가 다르기 때문에 베어링 지지부(20a)와 외륜(30a) 사이의 틈새가 발생되어 외륜(30a)이 유동되어 소음을 유발하고 회전축(60)의 회전마찰이 증대되며, 베어링(30)의 수명이 단축되는 문제점이 있었다.However, in the bearing support apparatus of the conventional electric motor configured as described above, heat is generated in the stator 40, the rotor 50, etc. during the operation of the electric motor, and is conducted to the housing 10, the end bracket 20, and the like. The end bracket 20 formed of aluminum is thermally expanded by heat. At this time, since the coefficient of linear expansion is different between the bearing support 20a and the outer ring 30a of the bearing 30 press-fitted and fixed to the bearing support 20a, a gap is generated between the bearing support 20a and the outer ring 30a, and thus the outer ring 30a. ) Causes the noise to flow and the rotational friction of the rotating shaft 60 is increased, the life of the bearing 30 is shortened.

따라서, 본 고안은 상기 문제점을 해결하기 위하여 이루어진 것으로, 본 고안의 목적은 베어링 고정을 위한 베어링지지장치에 베어링과 선팽창계수가 비슷한 금속재 부싱을 엔드브라켓과 일체화로 형성시켜 전동기 작동시 발열에 의해 베어링지지장치의 열팽창에 따른 베어링의 유동을 방지시켜 베어링의 수명을 연장시키고 베어링의 소음을 감소시킨 전동기의 베어링지지장치를 제공하는 데 있다.Accordingly, the present invention was made to solve the above problems, and an object of the present invention is to form a metal bushing having a linear expansion coefficient similar to that of a bearing in a bearing support device for fixing a bearing integrally with an end bracket, and thus bearings generated by heat generation during operation of the motor. An object of the present invention is to provide a bearing support device for an electric motor which prevents the flow of the bearing due to thermal expansion of the support device, thereby extending the life of the bearing and reducing the noise of the bearing.

제1도는 종래의 전동기 구성을 나타낸 단면도.1 is a cross-sectional view showing a conventional electric motor configuration.

제2도는 본 고안에 따른 전동기의 구성을 나타낸 단면도.2 is a cross-sectional view showing the configuration of the electric motor according to the present invention.

제3도는 제2도의 전동기에 적용된 엔드브라켓 상세단면도.3 is a detailed cross-sectional view of the end bracket applied to the electric motor of FIG.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 하우징 20 : 엔드브라켓10 housing 20 end bracket

20a : 베어링지지부 20b : 축공20a: bearing support 20b: shaft hole

30 : 베어링 40 : 고정자30: bearing 40: stator

50 : 회전자 60 : 회전축50: rotor 60: rotation axis

70 : 부싱70: bushing

상기 목적을 달성하기 위하여, 본 고안에 의한 전동기의 베어링 지지장치는, 적어도 고정자 및 회전축이 압입된 회전자 등이 내장된 원통 형상의 하우징과, 상기 하우징의 양측을 덮는 엔드브라켓과, 상기 엔드브라켓의 내부에 형성되며 상기 회전축을 지지고정하기 위한 베어링 지지부를 포함한 전동기의 베어링 지지장치에 있어서,In order to achieve the above object, a bearing support device for an electric motor according to the present invention includes a cylindrical housing having at least a stator and a rotor into which a rotating shaft is pressed, an end bracket covering both sides of the housing, and the end bracket. In the bearing support device of the electric motor is formed in the interior of the bearing including a support for fixing the rotating shaft,

상기 베어링지지부내의 베어링을 압입고정하는 것으로, 이 베어링과 선팽창계수가 비슷한 금속재를 사용하여 상기 엔드브라켓과 일체화로 형성된 부싱을 구비하여 이루어진 것을 특징으로 한다.Press-fit the bearing in the bearing support, characterized in that it comprises a bushing formed integrally with the end bracket using a metal material having a linear expansion coefficient similar to that of the bearing.

이하, 본 고안의 일실시예에 관하여 첨부도면을 참조하면서 상세히 설명한다.Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

또, 실시예를 설명하기 위한 모든 도면에서 동일한 기능을 갖는 것은 동일한 부호를 사용하고 그 반복적인 설명은 생략한다.In addition, in all the drawings for demonstrating an embodiment, the thing with the same function uses the same code | symbol, and the repeated description is abbreviate | omitted.

제2도는 본 고안에 따른 전동기의 구성을 나타낸 단면도이고, 제3도는 제2도의 전동기에 적용된 엔드브라켓 상세단면도를 도시한 것이다.2 is a cross-sectional view showing the configuration of the motor according to the present invention, Figure 3 shows a detailed cross-sectional view of the end bracket applied to the motor of FIG.

도면중 부호 10은 고정자(40) 및 회전축(60)이 압입된 회전자(50)등 전동기의 구성물이 내장되는 양측이 오픈된 원통형상이 하우징(10)이다.In the drawing, reference numeral 10 denotes a cylindrical housing 10 in which both sides of which the components of the electric motor are built, such as the rotor 50, into which the stator 40 and the rotating shaft 60 are press-fitted, are opened.

부호 20은 상기 하우징(10)의 오픈된 양측을 덮는 알루미늄재로 성형된 엔드브라켓(20)으로서, 상기 엔드브라켓(20)은 축공(20b) 및 베어링(30) 지지장치인 베어링 지지부(20a)가 형성된 것이다.Reference numeral 20 denotes an end bracket 20 formed of an aluminum material covering both open sides of the housing 10. The end bracket 20 is a bearing support 20a which is a shaft hole 20b and a bearing 30 support device. Is formed.

부호 70은 베어링 지지부(20a)내에 압입고정되는 부싱(70)으로서, 상기 부싱(70)은 베어링(30)과의 선팽창계수가 비슷한 철제 및 황동등 금속재로 형성된 것이다.Reference numeral 70 denotes a bushing 70 press-fitted into the bearing support 20a. The bushing 70 is formed of a metal such as steel and brass having a coefficient of linear expansion with respect to the bearing 30.

상기 구성에 의한 본 고안의 작용효과를 설명하면 다음과 같다.Referring to the effect of the present invention by the above configuration is as follows.

엔드브라켓(20)내에 형성된 베어링지지장치인 베어링 지지부(20a)내에 베어링(30)과 선팽창계수가 비슷한 금속재부싱(70)을 압입장착함으로써 고정자(40) 및 회전자(50) 등의 발열에 의해 베어링지지부가 팽창되어도 부싱(70)내에 압입고정된 베어링(30)은 유동이 방지되는 것이다.By press-fitting and mounting a metal bushing 70 having a linear expansion coefficient similar to that of the bearing 30 in the bearing support portion 20a, which is a bearing support device formed in the end bracket 20, the stator 40 and the rotor 50 are generated by heat generation. Even if the bearing support is expanded, the bearing 30 press-fitted in the bushing 70 is prevented from flowing.

이에따라 회전축(60) 회전시 회전축(60)의 원활한 회전이 보장되어 전동기의 성능저하요인이 제거되며, 베어링(30)의 유동방지에 의한 베어링(30) 수명연장 및 소음등이 방지되는 것이다.Accordingly, smooth rotation of the rotating shaft 60 is ensured when the rotating shaft 60 is rotated, thereby reducing the performance deterioration factor of the motor and preventing the bearing 30 from extending the life of the bearing 30 and noise.

이상에서와 같이, 본 고안에 따른 전동기의 베어링 지지장치에 의하면, 베어링과 선팽창계수가 비슷한 금속재부싱을 베어링지지장치에 부가하여 베어링을 지지토록 함으로써, 전동기의 발명등에 관계없이 베어링의 견고한 고정이 보장되어 베어링수명연장 및 베어링의 소음등이 감소되는 유용한 고안이다.As described above, according to the bearing support device of the motor according to the present invention, by securing a bearing by adding a metal bushing having a similar coefficient of linear expansion to the bearing support device to the bearing support device, it ensures a firm fixing of the bearing regardless of the invention of the motor It is a useful design that reduces the bearing life and bearing noise.

아울러 본 고안의 바람직한 실시예들은 예시의 목적을 위해 개시된 것이며, 당업자라면 본 고안의 사상과 범위 안에서 다양한 수정, 변경, 부가등이 가능할 것이며, 이러한 수정 변경등은 이하의 실용신안등록청구범위에 속하는 것으로 보아야 할 것이다.In addition, preferred embodiments of the present invention are disclosed for the purpose of illustration, those skilled in the art will be able to various modifications, changes, additions, etc. within the spirit and scope of the present invention, such modifications and modifications belong to the following utility model registration claims Should be seen.

Claims (1)

적어도 고정자 및 회전축이 압입된 회전자 등이 내장된 원통 형상의 하우징과, 상기 하우징의 양측을 덮는 엔드브라켓과, 상기 엔드브라켓의 내부에 형성되며, 상기 회전축을 지지고정하기 위한 베어링 지지부를 포함한 전동기의 베어링 지지장치에 있어서, 상기 베어링지지부내의 베어링을 압입고정하는 것으로, 이 베어링과 선팽창계수가 비슷한 금속재를 사용하여 상기 엔드브라켓과 일체화로 형성된 부싱을 구비하여 이루어진 것을 특징으로 하는 전동기의 베어링지지장치.An electric motor including a cylindrical housing having at least a stator and a rotor into which a rotating shaft is press-fitted, an end bracket covering both sides of the housing, and a bearing support portion formed inside the end bracket to support and secure the rotating shaft. The bearing support device of claim 1, wherein the bearing in the bearing support part is press-fitted and provided with a bushing formed integrally with the end bracket by using a metal material having a linear expansion coefficient similar to that of the bearing. Device.
KR2019950000927U 1995-01-23 1995-01-23 Bearing supporting device of a motor KR0126245Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019950000927U KR0126245Y1 (en) 1995-01-23 1995-01-23 Bearing supporting device of a motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019950000927U KR0126245Y1 (en) 1995-01-23 1995-01-23 Bearing supporting device of a motor

Publications (2)

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KR960027851U KR960027851U (en) 1996-08-17
KR0126245Y1 true KR0126245Y1 (en) 1999-04-15

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KR2019950000927U KR0126245Y1 (en) 1995-01-23 1995-01-23 Bearing supporting device of a motor

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KR960027851U (en) 1996-08-17

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