JP2003165032A - Fixing method by shrink fit - Google Patents
Fixing method by shrink fitInfo
- Publication number
- JP2003165032A JP2003165032A JP2001364216A JP2001364216A JP2003165032A JP 2003165032 A JP2003165032 A JP 2003165032A JP 2001364216 A JP2001364216 A JP 2001364216A JP 2001364216 A JP2001364216 A JP 2001364216A JP 2003165032 A JP2003165032 A JP 2003165032A
- Authority
- JP
- Japan
- Prior art keywords
- interference fit
- shaft
- fitting
- fixing method
- fixing
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 62
- 239000007787 solid Substances 0.000 claims abstract description 22
- 239000000314 lubricant Substances 0.000 claims abstract description 21
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 21
- 229910002804 graphite Inorganic materials 0.000 claims description 21
- 239000010439 graphite Substances 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 11
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 10
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 10
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 10
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 10
- 230000003287 optical effect Effects 0.000 claims description 9
- 239000010935 stainless steel Substances 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- -1 polytetrafluoroethylene Polymers 0.000 claims description 5
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 4
- 238000005461 lubrication Methods 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 230000001050 lubricating effect Effects 0.000 abstract description 5
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- ROVXPMRYLZEBGX-UHFFFAOYSA-L difluoromolybdenum Chemical compound F[Mo]F ROVXPMRYLZEBGX-UHFFFAOYSA-L 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000007779 soft material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
- B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
- B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold
- B23P11/027—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold for mounting tools in tool holders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Sliding-Contact Bearings (AREA)
- Laser Beam Printer (AREA)
- Mechanical Optical Scanning Systems (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】所定の締り嵌め公差を有する
軸状部材と取付孔とを強制的に嵌挿するようにした締り
嵌め固定方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interference fit fixing method in which a shaft member having a predetermined interference fit tolerance and a mounting hole are forcibly fitted and inserted.
【０００２】[0002]
【従来の技術】一般に用いられている多種多様な装置に
おいて、固定部材側に貫通形成された取付孔に対して、
シャフトなどの軸状部材を、適宜の締り嵌め公差の下で
強制的に嵌挿させて、上記軸状部材を固定部材側に固定
するようにした締り嵌め固定方法が広く採用されてい
る。例えば、回転駆動装置に用いられているモータにお
いては、アルミニウムなどの軽量部材からなる回転部材
に形成された取付孔内に、ステンレス材等の剛性部材か
らなるモータ出力軸を、圧入や焼き嵌めなどの締り嵌め
工程によって嵌挿・固定して、上記両部材どうしを強固
に固定することが行われている。2. Description of the Related Art In a wide variety of commonly used devices, a mounting hole is formed through a fixing member,
A tight fitting fixing method has been widely adopted in which a shaft-shaped member such as a shaft is forcibly fitted and inserted under an appropriate tight fitting tolerance, and the shaft-shaped member is fixed to the fixing member side. For example, in a motor used in a rotary drive device, a motor output shaft made of a rigid member such as stainless steel is press-fitted or shrink-fitted into a mounting hole formed in a rotating member made of a lightweight member such as aluminum. In this case, the above-mentioned members are firmly fixed to each other by being fitted and fixed in the interference fitting process.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上述し
た圧入や焼き嵌めなどの締り嵌め工程においては、両部
材の締り嵌め面どうしが、強く圧接しながら滑る状態に
なされるため、締り嵌め公差の程度や、材質の組み合わ
せなどによっては、強制挿通時における双方の締り嵌め
面どうしの間の滑り状態が良好でなくなる場合があり、
カジリ等による移着現象が発生して、締り嵌め工程にお
ける固定の精度が阻害されてしまうことがある。例え
ば、上記固定部材に対する軸状部材の取付直角度に狂い
を生じてしてしまったり、組立後の温度変化などによ
り、上記取付直角度などの固定精度に変化を生じてしま
う場合などである。However, in the above-described press-fitting, shrink-fitting, and other press-fitting processes, the press-fitting surfaces of both members are in a state of sliding while being strongly pressed together, and therefore the degree of the press-fitting tolerance. Also, depending on the combination of materials, the sliding condition between the interference fit surfaces of both sides during forced insertion may not be good,
A transfer phenomenon due to galling or the like may occur, and the accuracy of fixing in the interference fitting process may be impaired. For example, the mounting right angle of the shaft member with respect to the fixing member may be incorrect, or the fixing accuracy such as the mounting right angle may be changed due to a temperature change after assembly.
【０００４】このような締り嵌め工程における材料の移
着現象は、上述したモータの場合のように、ステンレス
材などの硬質材料と、アルミニウムなどの軟質材料との
組み合わせ時において特に顕著に発生することが多い。Such a material transfer phenomenon in the interference fitting process occurs remarkably when a hard material such as stainless steel and a soft material such as aluminum are combined, as in the case of the motor described above. There are many.
【０００５】そこで本発明は、簡易かつ低廉な手順によ
って、軸状部材と固定部材との締り嵌め工程を、容易
に、しかも高精度に行うことができるようにした締り嵌
め固定方法を提供することを目的とする。Therefore, the present invention provides an interference fit fixing method capable of easily and highly accurately performing an interference fit process between a shaft member and a fixing member by a simple and inexpensive procedure. With the goal.
【０００６】[0006]
【課題を解決するための手段】上記課題を解決するため
に、請求項１にかかる締り嵌め固定方法では、締り嵌め
工程を行うにあたって、軸状部材側の締り嵌め面と、固
定部材の取付孔側の締り嵌め面との少なくとも一方側
に、固体潤滑剤を予め塗布しておくようにしている。こ
のような構成を有する請求項１にかかる締り嵌め固定方
法によれば、締り嵌め工程を行う際に、軸状部材側の締
り嵌め面と、固定部材の取付孔側の締り嵌め面とが、固
体潤滑剤の潤滑作用によって相互に良好に滑り合うこと
となって、従来のようなカジリによる移着が良好に防止
されるようになっている。In order to solve the above problems, in the interference fit fixing method according to claim 1, in performing the interference fit step, the interference fit surface on the side of the shaft-like member and the fixing hole of the fixing member. The solid lubricant is applied in advance to at least one side of the side interference fit surface. According to the interference fit fixing method according to claim 1 having such a configuration, when the interference fit step is performed, the interference fit surface on the shaft member side and the tightening fit surface on the mounting hole side of the fixing member are Due to the lubricating action of the solid lubricant, the solid lubricants slide well with each other, and the conventional transfer due to scraping is well prevented.
【０００７】また、請求項２記載の締り嵌め固定方法に
よれば、請求項１記載の締り嵌め工程が、圧入または焼
き嵌め工程であることから、これらの圧入または焼き嵌
めの各工程が、移着等を生じることなく良好に行われる
ようになっている。Further, according to the interference fit fixing method described in claim 2, since the interference fit process according to claim 1 is a press-fitting or shrink-fitting process, each of these press-fitting or shrink-fitting processes is transferred. It is performed satisfactorily without causing wearing.
【０００８】さらに、請求項３記載の締り嵌め固定方法
によれば、請求項１記載の固体潤滑剤が、グラファイト
（黒鉛）、二流化モリブデン（ＭｏＳ２）、ポリテトラ
フルオロエチレン（ＰＴＦＥ）の粉末体からなることか
ら、これらの各固体潤滑剤によって、締り嵌め工程にお
ける移着等が良好に防止されるようになっている。Further, according to the interference fit fixing method described in claim 3, the solid lubricant according to claim 1 is a powder of graphite (graphite), molybdenum disulfide (MoS 2 ) and polytetrafluoroethylene (PTFE). Since they are made of a body, these solid lubricants can favorably prevent transfer and the like in the interference fitting process.
【０００９】さらにまた、請求項４記載の締り嵌め固定
方法によれば、請求項１記載の軸状部材がモータの出力
軸であるとともに、固定部材が上記モータの出力軸によ
り回転駆動される回転ハブであり、上記回転ハブに、光
情報の偏向走査を行うための偏向ポリゴンミラーが保持
されていることから、光偏向装置のポリゴンミラー駆動
用モータにおけるシャフトの取付が良好に行われるよう
になっている。Further, according to the interference fit fixing method described in claim 4, the shaft-like member according to claim 1 is the output shaft of the motor, and the fixing member is rotated by the output shaft of the motor. Since it is a hub, and the rotating polygon hub holds a deflecting polygon mirror for deflecting and scanning the optical information, the shaft can be favorably attached to the polygon mirror driving motor of the optical deflecting device. ing.
【００１０】一方、請求項５記載の締り嵌め固定方法に
よれば、請求項１記載の軸状部材又は固定部材の一方側
の部材に、ステンレス材、銅合金、アルミニウム合金の
いずれかを用いるとともに、他方側の部材に、ステンレ
ス材を用いるようにしたことから、これらの各部材を用
いた場合の締り嵌め工程における移着等が良好に防止さ
れるようになっている。On the other hand, according to the interference fit fixing method described in claim 5, the shaft member or the member on one side of the fixing member according to claim 1 is made of stainless steel, copper alloy or aluminum alloy. Since the member on the other side is made of stainless steel, transfer and the like in the interference fitting process in the case of using these members are favorably prevented.
【００１１】また、請求項６記載の締り嵌め固定方法に
よれば、請求項１記載の締り嵌め工程として焼き嵌め工
程を採用したときに、前記固体潤滑剤としてグラファイ
ト（黒鉛）若しくは二流化モリブデン（ＭｏＳ２）を採
用するようにしたことから、焼き嵌め工程を行う際に発
生する温度環境に対応して、グラファイト（黒鉛）若し
くは二流化モリブデン（ＭｏＳ２）による良好な潤滑作
用が得られるようになっている。Further, according to the interference fit fixing method described in claim 6, when the shrink fit process is adopted as the interference fit process according to claim 1, graphite (graphite) or molybdenum disulfide (as graphite) is used as the solid lubricant. Since MoS 2 ) is adopted, it is possible to obtain a good lubricating action by graphite (molybdenum disulfide) (MoS 2 ) depending on the temperature environment generated when performing the shrink fitting process. Has become.
【００１２】[0012]
【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて詳細に説明するが、それに先立って、本発明
を適用した光偏向装置におけるポリゴンミラー駆動装置
の構造例を説明しておく。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Prior to that, a structural example of a polygon mirror driving device in an optical deflecting device to which the present invention is applied will be described. deep.
【００１３】図１に示されているように、プリント基板
を兼用するモータ基板１の略中央部分には、略中空円筒
状をなす軸受ホルダー２が立設するようにして取り付け
られており、その軸受ホルダー２の内部側に焼結メタル
軸受３が装着されている。そして、その焼結メタル軸受
３によって、ステンレス材から形成されたシャフト４が
回転自在に支持されている。As shown in FIG. 1, a substantially hollow cylindrical bearing holder 2 is vertically installed at a substantially central portion of a motor board 1 which also serves as a printed board. A sintered metal bearing 3 is mounted on the inside of the bearing holder 2. The sintered metal bearing 3 rotatably supports a shaft 4 made of a stainless material.
【００１４】上記軸受ホルダー２の外周側壁面には、電
磁鋼板などの積層体から構成されたステータコア５が嵌
着されており、そのステータコア５の各突極部に対し
て、ステータコイル６がそれぞれ券回されている。A stator core 5 made of a laminated body such as an electromagnetic steel plate is fitted on the outer peripheral side wall surface of the bearing holder 2, and a stator coil 6 is attached to each salient pole portion of the stator core 5. It has been passed around.
【００１５】また、上記シャフト４が前記焼結メタル軸
受３側から図示上方側に向かって突出した出力部分に
は、アルミニウム合金から形成された回転ハブ７が、上
記シャフト４に対して、圧入または焼き嵌めなどの締り
嵌め工程を通して固定されている。この点については、
本発明の要部として後述することとするが、前記シャフ
ト４には、上記回転ハブ７を介して、略皿形状に形成さ
れたロータケース８が取り付けられている。A rotary hub 7 made of an aluminum alloy is press-fitted or fitted into the output portion of the shaft 4 projecting from the sintered metal bearing 3 side toward the upper side in the drawing. It is fixed through an interference fitting process such as shrink fitting. In this regard,
As will be described later as an essential part of the present invention, a substantially dish-shaped rotor case 8 is attached to the shaft 4 via the rotary hub 7.
【００１６】上記ロータケース８の外周側の立壁８ａの
内周面側には、リング状のロータマグネット９が装着さ
れている。このロータマグネット９の内周面は、前記ス
テータコア５の各突極部の外端面に対して、半径方向に
近接対向するように配置されている。A ring-shaped rotor magnet 9 is mounted on the inner peripheral surface side of the standing wall 8a on the outer peripheral side of the rotor case 8. The inner peripheral surface of the rotor magnet 9 is arranged so as to closely face the outer end surface of each salient pole portion of the stator core 5 in the radial direction.
【００１７】一方、上記回転ハブ７の中心部分に厚肉状
に設けられたボス部７ａの外周面には、光情報の光情報
の偏向走査を行うための偏向ポリゴンミラー１１が装着
されている。このポリゴンミラーの図示下端面は、上記
回転ハブ７のボス部７ａから半径方向外方側に向かって
突出するように形成されたミラー載置部７ｂ上に当接さ
れており、上記ボス部７ａの図示上方側からビス止めさ
れた複数個の押えバネ１２によって軸方向に押え込まれ
て固定されている。On the other hand, a deflection polygon mirror 11 for performing deflection scanning of optical information of optical information is mounted on the outer peripheral surface of the boss portion 7a provided in the central portion of the rotary hub 7 in a thick-walled shape. . The lower end surface of the polygon mirror shown in the drawing is in contact with a mirror mounting portion 7b formed so as to project radially outward from the boss portion 7a of the rotary hub 7, and the boss portion 7a. Is pressed and fixed in the axial direction by a plurality of pressing springs 12 screwed from the upper side in the figure.
【００１８】ここで、上述したように、前記回転ハブ７
とシャフト４とは、締り嵌め工程によって固定されてい
る。すなわち、上記回転ハブ７の中心部分に貫通形成さ
れた取付孔７ｃに対して、上記シャフト４が圧入または
焼き嵌めなどの締り嵌め工程によって強制的に挿通され
て固定されているが、それら両部材７，４どうしの締り
嵌め工程を行う際には、上記シャフト４の外周面側にお
ける締り嵌め面と、前記回転ハブ７の取付孔７ｃにおけ
る内周面側の締り嵌め面とが、互いに適宜の締り嵌め公
差の下で強く圧接しながら滑り合うことから、何らの対
策を施さなければ、従来の欄において説明したようなカ
ジリなどから移着現象が発生するおそれがある。Here, as described above, the rotating hub 7
The shaft 4 and the shaft 4 are fixed by an interference fitting process. That is, the shaft 4 is forcibly inserted into and fixed to the mounting hole 7c formed through the central portion of the rotary hub 7 by an interference fitting process such as press fitting or shrink fitting. When performing the interference fitting process between 7 and 4, the interference fitting surface on the outer peripheral surface side of the shaft 4 and the interference fitting surface on the inner peripheral surface side of the mounting hole 7c of the rotary hub 7 are appropriately separated from each other. Since they slide against each other while tightly pressing against each other under tight fitting tolerances, if no measures are taken, the transfer phenomenon may occur due to the galling and the like described in the conventional section.
【００１９】そこで本実施形態では、このような締り嵌
め公差の下における滑り合いを良好にするために、締り
嵌め工程を行う前の段階において、予め、前記シャフト
４の外周面側における締り嵌め面と、回転ハブ７の取付
孔７ｃにおける内周面側の締り嵌め面との少なくとも一
方側に、固体潤滑剤を塗布しておくようにしている。こ
のときの固体潤滑剤としては、例えば、グラファイト
（黒鉛）や、二流化モリブデン（ＭｏＳ２）、或いはポ
リテトラフルオロエチレン（ＰＴＦＥ）などの粉末体が
用いられ、その粉末体が、スプレー塗装や、刷毛塗りな
どによって適宜に塗布されるようになっている。Therefore, in the present embodiment, in order to improve the sliding under such an interference fit tolerance, the interference fit surface on the outer peripheral surface side of the shaft 4 is previously prepared at the stage before performing the interference fit step. The solid lubricant is applied to at least one side of the inner peripheral surface side interference fit surface of the mounting hole 7c of the rotary hub 7. As the solid lubricant at this time, for example, a powder body of graphite (graphite), molybdenum disulfide (MoS 2 ) or polytetrafluoroethylene (PTFE) is used, and the powder body is spray-coated or It is adapted to be appropriately applied by brushing or the like.
【００２０】このような本実施形態における締り嵌め固
定方法によれば、締り嵌め工程を行う際に、シャフト４
側の締り嵌め面と、回転ハブ７の取付孔７ｃ側の締り嵌
め面とが、上述した固体潤滑剤の潤滑作用によって相互
に良好に滑り合うこととなって、従来のようなカジリに
よる移着等が良好に防止され、ポリゴンミラー駆動用モ
ータにおけるシャフト４の取付が良好に行われるように
なっている。According to the interference fit fixing method in the present embodiment, the shaft 4 is used when performing the interference fit process.
Side fitting surface and the fitting surface on the side of the mounting hole 7c of the rotary hub 7 slide well with each other due to the lubricating action of the solid lubricant described above. And so on, and the shaft 4 of the motor for driving the polygon mirror is favorably attached.
【００２１】また、本実施形態の締り嵌め固定方法にお
いては、締り嵌め工程が、圧入または焼き嵌めであるこ
とから、これらの圧入または焼き嵌めの各工程が、移着
等を生じることなく良好に行われるようになっている。Further, in the interference fit fixing method of the present embodiment, since the interference fit step is press fitting or shrink fitting, each of these press fitting or shrink fitting steps is performed well without causing transfer or the like. It is supposed to be done.
【００２２】さらに、本実施形態の締り嵌め固定方法に
よれば、固体潤滑剤が、グラファイト（黒鉛）、二流化
モリブデン（ＭｏＳ２）、ポリテトラフルオロエチレン
（ＰＴＦＥ）の粉末体からなることから、これらの各固
体潤滑剤によって、上述したシャフト４の締り嵌め工程
における移着等が良好に防止されるようになっている。Furthermore, according to the interference fit fixing method of the present embodiment, the solid lubricant is a powder of graphite (graphite), molybdenum difluoride (MoS 2 ) and polytetrafluoroethylene (PTFE). Each of these solid lubricants favorably prevents transfer and the like in the above-described interference fitting process of the shaft 4.
【００２３】また、上記実施形態の締り嵌め固定方法で
は、軸状部材としてのシャフト４にステンレス材が用い
られているとともに、固定部材としての回転ハブ７にア
ルミニウム合金が用いられており、このような硬質材料
と軟質材料との組み合わせにおいて、特に良好な結果が
得られるようにしたものであるが、上記軸状部材とし
て、銅合金やアルミニウム合金などの他の材質を採用し
たり、固定部材としてステンレス材その他の材質を用い
るようにした場合であっても、ほぼ同様な作用・効果を
得ることができる。In the interference fit fixing method of the above embodiment, the shaft 4 as the shaft member is made of stainless steel, and the rotary hub 7 as the fixing member is made of aluminum alloy. In a combination of a hard material and a soft material, it is intended to obtain particularly good results, but as the shaft-shaped member, another material such as a copper alloy or an aluminum alloy is used, or as a fixing member. Even when stainless steel or other materials are used, substantially the same actions and effects can be obtained.
【００２４】特に、締り嵌め工程として焼き嵌め工程を
採用したときに、固体潤滑剤としてグラファイト（黒
鉛）若しくは二流化モリブデン（ＭｏＳ２）を採用する
ようにしておけば、焼き嵌め工程を行う際に発生する温
度環境に対応して、グラファイト（黒鉛）若しくは二流
化モリブデン（ＭｏＳ２）による良好な潤滑作用が得ら
れる。In particular, when the shrink fitting process is adopted as the interference fitting process, if graphite (graphite) or molybdenum difluoride (MoS 2 ) is adopted as the solid lubricant, the shrink fitting process is performed. Corresponding to the temperature environment in which it is generated, a good lubricating action of graphite or molybdenum disulfide (MoS 2 ) can be obtained.
【００２５】以上、本発明者によってなされた発明を実
施形態に基づいて具体的に説明したが、本発明は上記実
施形態に限定されるものではなく、その要旨を逸脱しな
い範囲で種々変形可能であるというのは言うまでもな
い。Although the invention made by the present inventor has been specifically described based on the embodiments, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the invention. It goes without saying that there is.
【００２６】例えば、上述した各実施形態は、ポリゴン
ミラー駆動用モータに対して本発明を適用したものであ
るが、その他のモータを始めとして、その他の多種多様
な装置における軸状部材と固定部材との締り嵌め工程に
対しても、本発明は同様に適用することができる。For example, in each of the above-described embodiments, the present invention is applied to a polygon mirror driving motor. However, the shaft-shaped member and the fixing member in various other devices including other motors. The present invention can be similarly applied to the interference fitting step with.
【００２７】[0027]
【発明の効果】以上述べたように、請求項１記載の締り
嵌め固定方法は、軸状部材と固定部材の取付孔との締り
嵌め工程を行うにあたって、軸状部材の締り嵌め面と、
固定部材の取付孔の締り嵌め面との少なくとも一方側
に、固体潤滑剤を予め塗布しておくことによって、上記
軸状部材側の締り嵌め面と、固定部材の取付孔側の締り
嵌め面とを、固体潤滑剤の潤滑作用によって相互に良好
に滑り合うようにして、従来のようなカジリによる移着
等を良好に防止したものであるから、簡易な手順によっ
て、軸状部材と固定部材との締り嵌め固定を容易に、し
かも高精度に行うことができ、締り嵌め固定の信頼性を
高めることができる。As described above, in the interference fit fixing method according to the first aspect, in performing the interference fit process of the shaft-shaped member and the mounting hole of the fixing member, the interference fit surface of the shaft-shaped member,
By applying a solid lubricant in advance to at least one side of the fitting hole of the fixing member, the fitting surface of the shaft member and the fitting surface of the fixing member on the fitting hole side. The sliding action of the solid lubricant makes it possible to prevent the transfer and the like due to scoring as in the conventional case, so that the shaft-shaped member and the fixing member can be easily formed by a simple procedure. The interference fit fixing can be performed easily and highly accurately, and the reliability of the interference fit fixing can be improved.
【００２８】また、請求項２記載の締り嵌め固定方法
は、請求項１記載の締り嵌め工程が、圧入または焼き嵌
めであることから、これらの圧入または焼き嵌めの各工
程が、移着を生じることなく良好に行われることとなっ
て、圧入または焼き嵌めの各工程において、上述した効
果を良好に得ることができる。Also, in the interference fit fixing method according to the second aspect, since the interference fit step according to the first aspect is press fitting or shrink fitting, each of these press fitting or shrink fitting steps causes transfer. The above-described effects can be satisfactorily obtained in each step of press fitting or shrink fitting.
【００２９】さらに、請求項３記載の締り嵌め固定方法
は、請求項１記載の固体潤滑剤が、グラファイト（黒
鉛）、二流化モリブデン（ＭｏＳ２）、ポリテトラフル
オロエチレン（ＰＴＦＥ）の粉末体からなることから、
これらの各固体潤滑剤によって締り嵌め工程における移
着等が防止され、上述した効果を良好に得ることができ
る。Furthermore, in the method of interference fit fixing according to claim 3, the solid lubricant according to claim 1 is a powder of graphite (graphite), molybdenum disulfide (MoS 2 ) or polytetrafluoroethylene (PTFE). Because
Each of these solid lubricants prevents transfer and the like in the interference fit process, so that the above-described effects can be satisfactorily obtained.
【００３０】さらにまた、請求項４記載の締り嵌め固定
方法は、請求項１記載の軸状部材がモータの出力軸であ
るとともに、固定部材が上記モータの出力軸により回転
駆動される回転ハブであり、上記回転ハブに、光情報の
偏向走査を行うための偏向ポリゴンミラーが保持されて
いることから、光偏向装置のポリゴンミラー駆動用モー
タにおけるシャフトの取付が良好に行われることとな
り、その光偏向装置のポリゴンミラー駆動用モータにお
いて、上述した効果を良好に得ることができる。According to a fourth aspect of the present invention, there is provided an interference fit fixing method, wherein the shaft-like member according to the first aspect is an output shaft of a motor, and the fixing member is a rotary hub rotatably driven by the output shaft of the motor. Since the rotating hub holds a deflecting polygon mirror for deflecting and scanning the optical information, the shaft of the polygon mirror driving motor of the optical deflecting device is favorably attached. In the polygon mirror driving motor of the deflecting device, the above effects can be satisfactorily obtained.
【００３１】また、請求項５記載の締り嵌め固定方法
は、請求項１記載の軸状部材又は固定部材の一方側の部
材に、ステンレス材、銅合金、またはアルミニウム合金
のいずれかを用いるとともに、他方側の部材に、ステン
レス材を用いるようにしたことから、これらの各部材を
用いた場合の締り嵌め工程における移着等が良好に防止
され、これらの各部材において上述した効果を良好に得
ることができる。According to a fifth aspect of the present invention, there is provided an interference fit fixing method, wherein the shaft member or the fixing member on one side is made of a stainless material, a copper alloy, or an aluminum alloy. Since the stainless steel material is used for the other member, transfer and the like in the interference fit process when using each of these members are satisfactorily prevented, and the above-mentioned effects of each of these members are satisfactorily obtained. be able to.
【００３２】さらに、請求項６の締り嵌め固定方法は、
請求項１記載の締り嵌め工程として焼き嵌め工程を採用
したときに、固体潤滑剤としてグラファイト（黒鉛）若
しくは二流化モリブデン（ＭｏＳ２）を採用することに
よって、焼き嵌め工程を行う際に発生する温度環境に対
応して、グラファイト（黒鉛）若しくは二流化モリブデ
ン（ＭｏＳ２）による良好な潤滑作用を得るようにした
ものであるから、特に焼き嵌め工程時において、上述し
た効果が確実に奏される。Further, the interference fitting fixing method of claim 6 is as follows:
The temperature generated when performing the shrink fitting process by adopting graphite (graphite) or molybdenum difluoride (MoS 2 ) as the solid lubricant when the shrink fitting process is adopted as the interference fitting process according to claim 1. In order to obtain a good lubrication effect by graphite (molybdenum disulfide) or molybdenum disulfide (MoS 2 ) depending on the environment, the above-mentioned effects are surely exhibited especially during the shrink fitting process.
【図１】本発明にかかる光偏向装置のポリゴンミラー駆
動用モータの構造例を表した縦断面説明図である。FIG. 1 is a vertical cross-sectional explanatory view showing a structural example of a polygon mirror driving motor of an optical deflecting device according to the present invention.
１ モータ基板 ３ 焼結メタル軸受 ４ シャフト（軸状部材） ７ 回転ハブ（固定部材） ７ｃ 取付孔 1 motor board 3 Sintered metal bearing 4 Shaft (Shaft member) 7 Rotating hub (fixed member) 7c Mounting hole
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｇ０２Ｂ 26/10 １０２ Ｆ１６Ｄ 1/06 Ｔ ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) G02B 26/10 102 F16D 1/06 T
Claims (6)
の取付孔に対して軸状部材を強制的に嵌挿する締り嵌め
工程を行うことによって、上記固定部材と軸状部材とを
締り嵌め固定するようにした締り嵌め固定方法におい
て、 上記締り嵌め工程を行うにあたって、前記軸状部材側の
締り嵌め面と、前記固定部材の取付孔側の締り嵌め面と
の少なくとも一方側に、固体潤滑剤を予め塗布しておく
ようにしたことを特徴とする締り嵌め固定方法。1. A tight fit between the fixed member and the shaft-like member by performing a tight fit step of forcibly fitting and inserting the shaft-like member into a mounting hole on the side of the fixed member having a predetermined tight fit tolerance. In the interference fit fixing method for fixing, at the time of performing the above-mentioned interference fit step, solid lubrication is performed on at least one side of the interference fit surface on the side of the shaft member and the tightening fit surface on the side of the mounting hole of the fixing member. An interference fit fixing method characterized in that the agent is applied in advance.
め工程であることを特徴とする請求項１記載の締り嵌め
固定方法。2. The interference fit fixing method according to claim 1, wherein the interference fit step is a press fit or a shrink fit step.
鉛）、二流化モリブデン（ＭｏＳ２）、ポリテトラフル
オロエチレン（ＰＴＦＥ）の粉末体からなることを特徴
とする請求項１記載の締り嵌め固定方法。3. The method according to claim 1, wherein the solid lubricant is a powder of graphite, molybdenum disulfide (MoS 2 ), or polytetrafluoroethylene (PTFE). .
ともに、前記固定部材が上記モータの出力軸により回転
駆動される回転ハブであり、 上記回転ハブに、光情報の偏向走査を行うための偏向ポ
リゴンミラーが保持されていることを特徴とする請求項
１記載の締り嵌め固定方法。4. The shaft-shaped member is an output shaft of a motor, and the fixed member is a rotary hub rotatably driven by the output shaft of the motor. The rotary hub is used to perform deflection scanning of optical information. The interference fit fixing method according to claim 1, wherein the deflecting polygon mirror is held.
材に、ステンレス材、銅合金、アルミニウム合金のいず
れかを用いるとともに、 他方側の部材に、ステンレス材を用いるようにしたこと
を特徴とする請求項１記載の締り嵌め固定方法。5. A stainless steel material, a copper alloy, or an aluminum alloy is used for a member on one side of the shaft-shaped member or the fixing member, and a stainless material is used for a member on the other side. The interference fit fixing method according to claim 1.
を採用したときに、前記固体潤滑剤として、グラファイ
ト（黒鉛）若しくは二流化モリブデン（ＭｏＳ２）を採
用するようにしたことを特徴とする請求項１記載の締り
嵌め固定方法。6. The method according to claim 1, wherein when the shrink fitting step is adopted as the interference fitting step, graphite (graphite) or molybdenum disulfide (MoS 2 ) is adopted as the solid lubricant. Item 2. An interference fit fixing method according to Item 1.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001364216A JP2003165032A (en) | 2001-11-29 | 2001-11-29 | Fixing method by shrink fit |
| CN 02154320 CN1421620A (en) | 2001-11-29 | 2002-11-29 | Shrink fit fixing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001364216A JP2003165032A (en) | 2001-11-29 | 2001-11-29 | Fixing method by shrink fit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003165032A true JP2003165032A (en) | 2003-06-10 |
Family
ID=19174443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001364216A Withdrawn JP2003165032A (en) | 2001-11-29 | 2001-11-29 | Fixing method by shrink fit |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2003165032A (en) |
| CN (1) | CN1421620A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007146782A (en) * | 2005-11-29 | 2007-06-14 | Denso Corp | Magnet switch |
| JP2014532257A (en) * | 2011-09-13 | 2014-12-04 | フランツ・ハイマー・マシーネンバウ・カーゲー | Induction coil unit |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196750B (en) * | 2014-09-01 | 2016-05-18 | 青蛙泵业有限公司 | A kind of deep well pump rotor major axis and processing technology thereof |
| CN114603306B (en) * | 2022-03-31 | 2023-08-04 | 西安航空制动科技有限公司 | Method for assembling outer ring of aircraft wheel bearing and hub heating device |
-
2001
- 2001-11-29 JP JP2001364216A patent/JP2003165032A/en not_active Withdrawn
-
2002
- 2002-11-29 CN CN 02154320 patent/CN1421620A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007146782A (en) * | 2005-11-29 | 2007-06-14 | Denso Corp | Magnet switch |
| JP4577195B2 (en) * | 2005-11-29 | 2010-11-10 | 株式会社デンソー | magnetic switch |
| JP2014532257A (en) * | 2011-09-13 | 2014-12-04 | フランツ・ハイマー・マシーネンバウ・カーゲー | Induction coil unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1421620A (en) | 2003-06-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1617094B1 (en) | Small-sized motor and method of manufacturing the same | |
| US20060029312A1 (en) | Hydrodynamic bearing device, motor and disc driving apparatus | |
| KR20070003566A (en) | Motor | |
| JP2002136031A (en) | Brushless motor and manufacturing method for the motor | |
| CA2207858A1 (en) | Piston pump, and assembly method of electric motor for driving the piston pump | |
| US20090152968A1 (en) | Spindle motor | |
| JPH10213132A (en) | Rotor structure and polygon scanner using rotor structure | |
| JP4699710B2 (en) | Core motor | |
| JP2010242855A (en) | Fixing method and fixing structure of rolling bearing | |
| JP2003165032A (en) | Fixing method by shrink fit | |
| JP2007143379A (en) | Brushless motor | |
| US6493923B1 (en) | Method for manufacturing small-sized motor | |
| JP2003230247A (en) | Stator supporting mechanism in motor, and method of manufacturing the supporting mechanism | |
| JP2004104915A (en) | Outer rotor type brushless motor | |
| JP3885399B2 (en) | Spindle motor | |
| JPH07296502A (en) | Shaft for spindle motor and its production and spindle motor formed by using the same | |
| JP2002317815A (en) | Dynamic pressure bearing device | |
| JP3530055B2 (en) | motor | |
| JP2007218386A (en) | Fluid bearing device and turning device | |
| JP2005054818A (en) | Fluid dynamic pressure bearing device, method for manufacturing motor, and fluid dynamic pressure bearing device | |
| JP2000257635A (en) | Manufacture of thrust fluid bearing and fluid bearing device using this thrust fluid bearing | |
| JP2016220332A (en) | Rotary electric machine | |
| JP2002156597A (en) | Polygon mirror fixing device | |
| JPH09103061A (en) | High-speed revolution body and dynamic-pressure air bearing type polygon scanner with revolution body thereof | |
| JP2005057952A (en) | Small diameter motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20050201 |