JP2005269785A - Motor - Google Patents

Motor Download PDF

Info

Publication number
JP2005269785A
JP2005269785A JP2004079523A JP2004079523A JP2005269785A JP 2005269785 A JP2005269785 A JP 2005269785A JP 2004079523 A JP2004079523 A JP 2004079523A JP 2004079523 A JP2004079523 A JP 2004079523A JP 2005269785 A JP2005269785 A JP 2005269785A
Authority
JP
Japan
Prior art keywords
bearing
load side
side bracket
bearing housing
load
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
Application number
JP2004079523A
Other languages
Japanese (ja)
Other versions
JP4645879B2 (en
Inventor
Takahiro Fukagawa
孝浩 深川
Naotake Yoshizawa
尚剛 吉澤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yaskawa Electric Corp
Original Assignee
Yaskawa Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yaskawa Electric Corp filed Critical Yaskawa Electric Corp
Priority to JP2004079523A priority Critical patent/JP4645879B2/en
Publication of JP2005269785A publication Critical patent/JP2005269785A/en
Application granted granted Critical
Publication of JP4645879B2 publication Critical patent/JP4645879B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Support Of The Bearing (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a motor that can be prolonged in the lifetime of a bearing and prevented from creeping, while stably pressurizing the bearing. <P>SOLUTION: The motor comprises: a stator 2 equipped with a stator winding 2a; a a load-side bracket 5 and a counter load side bracket 6, arranged on both sides in the axial direction of the stator 2; and a rotor 1 having a rotating shaft 1a rotatably supported to bearing housing 5a, 6a of the load-side bracket 5 and the counter load side bracket 6 via the bearings 3, 4. At least one hole 8 for injecting a adhesive is formed between the outer wheel of the counter load side bearing 4, assembled into the bearing housing 6a of the counter load side bracket 6 and the bearing housing 6a, in a state of being pressurized by the repulsive force of an elastic body 7. A groove 9 in the circumferential direction is formed on the internal peripheral surface of the bearing housing 6a, that contacts the outer wheel of the counter load side bearing 4. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、予圧をかけた軸受を有するモータに関するもので、特に軸受支持構造に関するものである。   The present invention relates to a motor having a preloaded bearing, and more particularly to a bearing support structure.

従来のモータの軸受支持構造は、回転軸のガタ防止と軸受の長寿命化のため軸受の内輪は焼きバメ等による固定を行い、外輪は一方を機械的に固定または接着固定し、一方にはバネなどを用いてアキシャル方向に適正な予圧をかけて接着固定している。（例えば、特許文献１参照）。
図３は、従来のモータ構成を示す側断面図である。
図３において、１は回転軸１ａを有する回転子、２は固定子巻線２ａを装着するとともに樹脂モールドを施した固定子である。３，４は負荷側および反負荷側軸受で、内輪は回転軸１ａに焼きバメ固定している。５，６は負荷側および反負荷側ブラケットで、中心に軸受ハウジング部５ａ，６ａを備えており、固定子２に取付けられている。７は波形バネである。負荷側軸受３の外輪は負荷側ブラケット５のハウジング部にカバーで機械固定されている。反負荷側軸受４の外輪はハウジングとはわずかな隙間を有しており、この外輪端面と反負荷側ブラケット６のハウジング端部の間に波形バネ７を設けて、このバネ圧で軸受に予圧を与えながらで、外輪を接着固定している。
特開２００３−９７５５１号公報（図２） In the conventional motor bearing support structure, the inner ring of the bearing is fixed by shrinkage in order to prevent backlash of the rotating shaft and prolong the life of the bearing, and the outer ring is mechanically fixed or bonded and fixed to the other. Adhesive fixing is performed by applying an appropriate preload in the axial direction using a spring or the like. (For example, refer to Patent Document 1).
FIG. 3 is a side sectional view showing a conventional motor configuration.
In FIG. 3, reference numeral 1 denotes a rotor having a rotating shaft 1a, and 2 denotes a stator on which a stator winding 2a is mounted and resin molded. Reference numerals 3 and 4 denote load-side and anti-load-side bearings, and the inner ring is fixed by shrinkage to the rotary shaft 1a. Reference numerals 5 and 6 denote load-side and anti-load-side brackets, which are provided with bearing housing portions 5 a and 6 a at the center and are attached to the stator 2. 7 is a wave spring. The outer ring of the load side bearing 3 is mechanically fixed to the housing portion of the load side bracket 5 with a cover. The outer ring of the anti-load side bearing 4 has a slight clearance from the housing, and a wave spring 7 is provided between the outer ring end surface and the housing end of the anti-load side bracket 6, and this spring pressure preloads the bearing. The outer ring is bonded and fixed while giving
Japanese Patent Laying-Open No. 2003-97551 (FIG. 2)

しかしながら、このような従来技術においては、次のような問題があった。
・ 軸受外輪を接着するために予め軸受外輪もしくはこれに嵌めあうハウジングに接着剤を塗布して組立てるために、軸受を軸受ハウジングに挿入する際に、途中で接着剤が硬化してしまう。
・ 軸受と軸受ハウジングの引っ掛かりが発生して、バネによる適正予圧が掛からないで過剰な予圧状態で組立てられるおそれがある。
本発明は、このような問題を解決するためになされたもので、軸受に対し安定した予圧をかけながら軸受の長寿命化とクリープ防止することができるモータを提供することを目的とするものである。 However, such conventional techniques have the following problems.
In order to bond the outer ring of the bearing and apply the adhesive to the outer ring of the bearing or the housing that fits into the outer ring in advance, the adhesive hardens in the middle when the bearing is inserted into the bearing housing.
・ There is a risk that the bearing and the bearing housing will be caught, and that the preload will not be applied properly by the spring and will be assembled in an excessive preload state.
The present invention has been made to solve such problems, and it is an object of the present invention to provide a motor capable of extending the life of the bearing and preventing creep while applying a stable preload to the bearing. is there.

上記問題を解決するため、本発明は、次のように構成したものである。
請求項１に記載の発明は、固定子巻線を装着した固定子と、前記固定子の軸方向両側に設けた負荷側ブラケットおよび反負荷側ブラケットと、前記負荷側ブラケットおよび反負荷側ブラケットの軸受ハウジング部に軸受を介して回転自在に支持された回転軸を有する回転子とを備えた電動機において、弾性体の反発力で予圧をかけた状態で反負荷側ブラケットの軸受ハウジング部に組み込んだ反負荷側軸受の外輪と前記軸受ハウジング部間に接着剤を注入するための少なくとも１個の穴を備えたことを特徴とするものである。
また、請求項２に記載の発明は、前記軸受の外輪と接する軸受ハウジング部の内周面に円周方向の溝を備えたことを特徴とするものである。 In order to solve the above problems, the present invention is configured as follows.
According to the first aspect of the present invention, there are provided a stator having a stator winding, load side brackets and anti-load side brackets provided on both sides in the axial direction of the stator, and the load side brackets and the anti-load side brackets. In an electric motor having a rotor having a rotating shaft rotatably supported by a bearing housing part via a bearing, the electric motor is incorporated in the bearing housing part of the anti-load side bracket in a state in which a preload is applied by a repulsive force of an elastic body. At least one hole for injecting an adhesive is provided between the outer ring of the non-load side bearing and the bearing housing portion.
The invention described in claim 2 is characterized in that a circumferential groove is provided on the inner peripheral surface of the bearing housing portion in contact with the outer ring of the bearing.

本発明によれば、次のような効果がある。
請求項１に記載の発明によると、軸受に適正な予圧をかけた状態でモータを組み立てた後で、反負荷側ブラケットに設けた穴から接着剤を注入することができ、接着硬化前に軸受の引っ掛かり等の組立て不具合が容易に確認することが可能になり、信頼性向上を図ることができる。
また、請求項２に記載の発明によると、注入した接着剤が軸受外輪全周に行き渡り硬化させることができる。また、接着剤の注入量はディスペンサ等による塗布で量管理することで安定した硬化が望め、クリープ防止の信頼性を向上することができる。 The present invention has the following effects.
According to the first aspect of the present invention, after assembling the motor in a state where an appropriate preload is applied to the bearing, the adhesive can be injected from the hole provided in the anti-load side bracket. As a result, it is possible to easily check assembly problems such as hooking, and improve reliability.
According to the invention of claim 2, the injected adhesive can be spread over the entire circumference of the bearing outer ring and cured. Further, the amount of adhesive injected can be controlled by application with a dispenser or the like, so that stable curing can be expected, and the reliability of preventing creep can be improved.

以下、本発明の実施例を図に基づいて説明する。   Embodiments of the present invention will be described below with reference to the drawings.

図１は、本発明の実施例におけるモータを示す側断面図で、図２は、本発明の実施例における反負荷側ブラケットを反負荷側から見た正面図である。
図において、１は回転軸１ａを有する回転子、２は固定子巻線２ａを装着するとともに樹脂モールドを施した固定子である。３，４は負荷側および反負荷側軸受で、内輪は回転軸１ａに焼きバメ固定している。５，６は負荷側および反負荷側ブラケットで、中心に軸受ハウジング５ａ，６ａを備えており、固定子２に取付けられている。７は波形バネである。負荷側軸受３の外輪は負荷側ブラケット５のハウジング部にカバーで機械固定されている。反負荷側軸受４の外輪はハウジングとはわずかな隙間を有しており、この外輪端面と反負荷側ブラケット６のハウジング端部の間に波形バネ７を設けて、このバネ圧で軸受に予圧を与えている。８は接着剤注入用穴で、反負荷側軸受４と反負荷側ブラケット６の軸受ハウジング部６ａが目視できる位置に設けている。前記軸受ハウジング部６ａの内周面には円周方向に接着剤浸透用溝９を構成している。接着剤注入用穴８は、この接着剤浸透用溝９に貫通している。
上記構成において、モータを組立てた後、接着剤注入用穴８から反負荷側軸受４が引っ掛かり等なく組み込まれていることを確認した上で接着剤を注入し、反負荷側軸受４の外輪を固定するものである。
本発明が特許文献１と異なる部分は、反負荷側ブラケット６に接着剤注入用穴８と反負荷側ブラケット６の内周面に接着剤浸透用溝９を備えた部分である。 FIG. 1 is a side sectional view showing a motor in an embodiment of the present invention, and FIG.
In the figure, reference numeral 1 denotes a rotor having a rotating shaft 1a, and 2 denotes a stator on which a stator winding 2a is mounted and resin molded. Reference numerals 3 and 4 denote load-side and anti-load-side bearings, and the inner ring is fixed by shrinkage to the rotary shaft 1a. Reference numerals 5 and 6 denote load-side and anti-load-side brackets, which are provided with bearing housings 5a and 6a at the center and are attached to the stator 2. 7 is a wave spring. The outer ring of the load side bearing 3 is mechanically fixed to the housing portion of the load side bracket 5 with a cover. The outer ring of the anti-load side bearing 4 has a slight clearance from the housing, and a wave spring 7 is provided between the outer ring end surface and the housing end of the anti-load side bracket 6, and the spring pressure preloads the bearing. Is given. An adhesive injection hole 8 is provided at a position where the bearing housing portion 6a of the anti-load side bearing 4 and the anti-load side bracket 6 can be seen. An adhesive penetration groove 9 is formed in the circumferential direction on the inner peripheral surface of the bearing housing portion 6a. The adhesive injection hole 8 passes through the adhesive penetration groove 9.
In the above configuration, after assembling the motor, after confirming that the anti-load side bearing 4 is assembled without being caught from the adhesive injection hole 8, the adhesive is injected, and the outer ring of the anti-load side bearing 4 is removed. It is to be fixed.
The portion where the present invention differs from Patent Document 1 is a portion provided with an adhesive injection hole 8 in the anti-load side bracket 6 and an adhesive penetration groove 9 on the inner peripheral surface of the anti-load side bracket 6.

本発明の実施例におけるモータを示す側断面図である。It is a sectional side view which shows the motor in the Example of this invention. 本発明の実施例における反負荷側ブラケットを反負荷側から見た正面図である。It is the front view which looked at the anti-load side bracket in the Example of this invention from the anti-load side. 従来技術におけるモータを示す側断面図である。It is a sectional side view which shows the motor in a prior art.

符号の説明Explanation of symbols

１ 回転子
１ａ 回転軸
２ 固定子
２ａ 固定子巻線
３ 負荷側軸受
４ 反負荷側軸受
５ 負荷側ブラケット
５ａ 軸受ハウジング部
６ 反負荷側ブラケット
６ａ 軸受ハウジング部
７ 波形バネ
８ 接着剤注入用穴 DESCRIPTION OF SYMBOLS 1 Rotor 1a Rotating shaft 2 Stator 2a Stator winding 3 Load side bearing 4 Anti load side bearing 5 Load side bracket 5a Bearing housing part 6 Anti load side bracket 6a Bearing housing part 7 Wave spring 8 Adhesive injection hole

Claims (2)

固定子巻線を装着した固定子と、
前記固定子の軸方向両側に設けた負荷側ブラケットおよび反負荷側ブラケットと、
前記負荷側ブラケットおよび反負荷側ブラケットの軸受ハウジング部に軸受を介して回転自在に支持された回転軸を有する回転子とを備えた電動機において、
弾性体の反発力で予圧をかけた状態で反負荷側ブラケットの軸受ハウジング部に組み込んだ反負荷側軸受の外輪と前記軸受ハウジング部間に接着剤を注入するための少なくとも１個の穴を備えたことを特徴とするモータ。 A stator fitted with a stator winding;
Load-side brackets and anti-load-side brackets provided on both axial sides of the stator,
In an electric motor comprising a rotor having a rotating shaft rotatably supported via a bearing on a bearing housing portion of the load side bracket and the anti-load side bracket,
At least one hole for injecting an adhesive between the outer ring of the anti-load side bearing incorporated in the bearing housing portion of the anti-load side bracket and the bearing housing portion in a state where preload is applied by the repulsive force of the elastic body. A motor characterized by that. 前記軸受の外輪と接する軸受ハウジング部の内周面に円周方向の溝を備えたことを特徴とする請求項１に記載のモータ。   The motor according to claim 1, further comprising a circumferential groove on an inner peripheral surface of a bearing housing portion that contacts an outer ring of the bearing.
JP2004079523A 2004-03-19 2004-03-19 motor Expired - Fee Related JP4645879B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004079523A JP4645879B2 (en) 2004-03-19 2004-03-19 motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004079523A JP4645879B2 (en) 2004-03-19 2004-03-19 motor

Publications (2)

Publication Number Publication Date
JP2005269785A true JP2005269785A (en) 2005-09-29
JP4645879B2 JP4645879B2 (en) 2011-03-09

Family

ID=35093737

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004079523A Expired - Fee Related JP4645879B2 (en) 2004-03-19 2004-03-19 motor

Country Status (1)

Country Link
JP (1) JP4645879B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007143206A (en) * 2005-11-14 2007-06-07 Yaskawa Electric Corp Motor
JP2018068000A (en) * 2016-10-18 2018-04-26 マブチモーター株式会社 Bearing retention structure and motor
WO2019163020A1 (en) 2018-02-21 2019-08-29 株式会社安川電機 Motor control system, motor control device, and bearing life diagnosis method
CN111788763A (en) * 2018-03-01 2020-10-16 戴森技术有限公司 Method of assembling a rotor to a motor frame
US11108297B2 (en) 2017-11-15 2021-08-31 Seiko Epson Corporation Motor and robot

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019092301A (en) 2017-11-15 2019-06-13 セイコーエプソン株式会社 Motor and robot

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5312939U (en) * 1974-02-12 1978-02-02
JPS62135541U (en) * 1986-02-20 1987-08-26

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5312939U (en) * 1974-02-12 1978-02-02
JPS62135541U (en) * 1986-02-20 1987-08-26

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007143206A (en) * 2005-11-14 2007-06-07 Yaskawa Electric Corp Motor
JP4706922B2 (en) * 2005-11-14 2011-06-22 株式会社安川電機 motor
JP2018068000A (en) * 2016-10-18 2018-04-26 マブチモーター株式会社 Bearing retention structure and motor
US11108297B2 (en) 2017-11-15 2021-08-31 Seiko Epson Corporation Motor and robot
WO2019163020A1 (en) 2018-02-21 2019-08-29 株式会社安川電機 Motor control system, motor control device, and bearing life diagnosis method
US11398789B2 (en) 2018-02-21 2022-07-26 Kabushiki Kaisha Yaskawa Denki Motor control system, motor control apparatus, and bearing lifetime diagnosis method
CN111788763A (en) * 2018-03-01 2020-10-16 戴森技术有限公司 Method of assembling a rotor to a motor frame
CN111788763B (en) * 2018-03-01 2023-10-03 戴森技术有限公司 Method for assembling rotor to motor frame and motor

Also Published As

Publication number Publication date
JP4645879B2 (en) 2011-03-09

Similar Documents

Publication Publication Date Title
US7592726B2 (en) Electric machine comprising an axial spring-loaded element
JP2016136829A (en) Motor unit
JP5263714B2 (en) Rotating electric machine
JP2015100202A (en) Rotor, motor and method for manufacturing rotor
JP5490121B2 (en) Flywheel assembly
WO2008032462A1 (en) Actuator
JP2008175337A (en) Bearing structure
JP4645879B2 (en) motor
KR101604900B1 (en) Brushless DC Motor
JP2010520965A (en) High pressure pump for pumping fuel with an improved configuration of a bearing device for supporting a camshaft
JPWO2018179832A1 (en) motor
JP2008099355A (en) Bearing for motor and vibrating motor
JP4328537B2 (en) Motor and fuel supply pump provided with the same
JP6964135B2 (en) Motor and how to assemble the motor
KR20140070902A (en) Shaft combination module of motor ane the manufacturing method
ES2328090T3 (en) ELECTRIC MOTOR.
JP2006180570A (en) Motor
CN111788395B (en) Locking device for ventilator
JP3307167B2 (en) Electric motor and electric blower
KR20070109263A (en) Brushless motor
JP2004028307A (en) Bearing support structure for jet engine
JP2010142057A (en) Rotary electric machine
JP2018207593A (en) Fan motor device
JP2018207560A (en) Fan motor device and manufacturing method of the same
US20220355778A1 (en) Actuator for electronic parking brake

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20070202

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20091216

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20091224

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20100215

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20100514

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20100702

A911 Transfer to examiner for re-examination before appeal (zenchi)

Free format text: JAPANESE INTERMEDIATE CODE: A911

Effective date: 20100820

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20101012

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20101020

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20101111

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20101124

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131217

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Ref document number: 4645879

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20141217

Year of fee payment: 4

LAPS Cancellation because of no payment of annual fees