JP2011250633A - Motor structure - Google Patents

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JP2011250633A
JP2011250633A JP2010123283A JP2010123283A JP2011250633A JP 2011250633 A JP2011250633 A JP 2011250633A JP 2010123283 A JP2010123283 A JP 2010123283A JP 2010123283 A JP2010123283 A JP 2010123283A JP 2011250633 A JP2011250633 A JP 2011250633A
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bearing
bearings
motor structure
lid
front lid
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JP5499256B2 (en
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Hiroyuki Hirabayashi
宏之 平林
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Tamagawa Seiki Co Ltd
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Tamagawa Seiki Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To enable a bearing to be replaced without disassembling a housing.SOLUTION: In the motor structure, open holes 20, 22 are formed on bearing cylinder 6, 7 provided on a front lid 2 and a rear lid 3, respectively, and an externally-released type is used for the bearing cylinders 6, 7. By inserting a jig from the open holes 20, 22, displacing bearings 8, 9 and moving a rotation axis 11, the bearings 8, 9 can be replaced without disassembling a housing 1.

Description

本発明は、モータ構造に関し、特に、筐体を分解することなく軸受の交換を可能とするための新規な改良に関する。   The present invention relates to a motor structure, and more particularly to a novel improvement for enabling replacement of a bearing without disassembling a housing.

従来、用いられていたこの種のモータ構造としては、例えば、特許文献１及び２に開示されている構成を図１１及び図１２として挙げることができる。
すなわち、図１１で示される特許文献１で示されるモータ構造において、筐体１を形成する前蓋２と後蓋３とは嵌合部４を介して接続され、前記筐体１の内壁には固定子５が設けられている。 As this type of motor structure conventionally used, for example, the configurations disclosed in Patent Documents 1 and 2 can be cited as FIGS. 11 and 12.
That is, in the motor structure shown in Patent Document 1 shown in FIG. 11, the front lid 2 and the rear lid 3 forming the casing 1 are connected via the fitting portion 4, and the inner wall of the casing 1 is connected to the inner wall of the casing 1. A stator 5 is provided.

前記前蓋２及び後蓋３に設けられた軸受孔６，７には第１、第２軸受８，９が設けられ、回転子１０を有する回転軸１１が各軸受８，９を介して筐体１内で回転自在に設けられている。   First and second bearings 8 and 9 are provided in the bearing holes 6 and 7 provided in the front lid 2 and the rear lid 3, and a rotating shaft 11 having a rotor 10 is provided through the bearings 8 and 9. It is rotatably provided in the body 1.

また、図１２で示される特許文献２のモータ構造においては、前蓋２と後蓋３とからなる筐体１の両端に設けられた軸受孔６，７に、第１、第２軸受８，９が設けられている。
前記筐体１の内壁には、固定子５が設けられ、前記各軸受８，９には、回転子１０を有する回転軸１１が回転自在に設けられている。 Further, in the motor structure of Patent Document 2 shown in FIG. 12, the first and second bearings 8, 7 are provided in the bearing holes 6, 7 provided at both ends of the housing 1 including the front lid 2 and the rear lid 3. 9 is provided.
A stator 5 is provided on the inner wall of the casing 1, and a rotary shaft 11 having a rotor 10 is rotatably provided on each of the bearings 8 and 9.

また、図９及び図１０で示される構造は一般市販品であり、図１１及び図１２と同一部分には同一符号を付し、その説明は省略すると共に、図１１及び図１２の構成と異なる部分についてのみ説明する。
すなわち、前蓋２の軸受孔６は筐体１の内方を向いており、後蓋３の軸受孔７は外方へやや突出して形成されている。 Moreover, the structure shown by FIG.9 and FIG.10 is a general commercial item, The same code | symbol is attached | subjected to FIG.11 and FIG.12 and an identical part, The description is abbreviate | omitted and it differs from the structure of FIG. Only the part will be described.
That is, the bearing hole 6 of the front lid 2 faces inward of the housing 1, and the bearing hole 7 of the rear lid 3 is formed to protrude slightly outward.

特開２００８−２５９３７０号公報JP 2008-259370 A 米国特許第５，８５６，７１４号明細書US Pat. No. 5,856,714

従来のモータ構造は、以上のように構成されていたため、次のような課題が存在していた。
すなわち、図９及び図１０で示される従来構成の場合、前蓋２の軸受を保持する軸受孔が内方へ突出しているため、モータの軸受が劣化して交換する場合には、モータ自体を分解して軸受の取り換えを行わなければならず、分解及び再組立てに要する費用は多大のものであった。 Since the conventional motor structure is configured as described above, the following problems exist.
That is, in the case of the conventional configuration shown in FIGS. 9 and 10, since the bearing hole for holding the bearing of the front lid 2 protrudes inward, when the motor bearing deteriorates and is replaced, the motor itself is removed. The bearings had to be disassembled and replaced, and the costs required for disassembly and reassembly were significant.

また、図１１及び図１２で示される従来構成においても、組立て後のモータの軸受を交換する場合には、軸受孔に抜け止めが形成されているため、軸受の交換には、モータを分解しなければ不可能であった。   Also, in the conventional configuration shown in FIGS. 11 and 12, when replacing the motor bearing after assembly, a retaining hole is formed in the bearing hole. Without it it was impossible.

本発明によるモータ構造は、筒状をなすと共に外方へ突出する第１軸受筒を有する後蓋と、前記後蓋に接続され筒状をなすと共に外方へ突出する第２軸受筒を有する前蓋と、前記前蓋と後蓋により形成される筐体の内壁に設けられた固定子と、前記各軸受筒に設けられた第１、第２軸受と、前記各軸受により回転自在に支持され前記固定子と対応する回転子を有する回転軸と、を備えたモータ構造において、前記各軸受筒に形成され軸方向と交差する方向に貫通して形成された第１、第２貫通孔を有し、前記各軸受の外輪は前記各貫通孔を介して外部に通じていると共に、前記各軸受筒の各一端は外部に向けて解放され、前記各軸受は各軸受筒に対して軸方向に沿って摺動できる構成であり、また、前記前蓋と後蓋は、圧入により接続されている構成であり、また、前記前蓋と後蓋は、ネジにより接続されている構成である。   The motor structure according to the present invention has a rear cover having a first bearing cylinder that has a cylindrical shape and projects outward, and a front bearing that has a second bearing cylinder that is connected to the rear lid and has a cylindrical shape and projects outward. A lid, a stator provided on an inner wall of a housing formed by the front lid and the rear lid, first and second bearings provided on the bearing cylinders, and a bearing rotatably supported by the bearings. A motor structure including a stator and a rotating shaft having a corresponding rotor, and having first and second through holes formed in the bearing cylinders and penetrating in a direction intersecting the axial direction. The outer ring of each bearing communicates with the outside through each through-hole, and each one end of each bearing cylinder is released toward the outside, and each bearing is in the axial direction with respect to each bearing cylinder. The front lid and the rear lid are connected by press-fitting. A configuration that, also, the front lid and rear lid has a configuration which is connected by screws.

本発明によるモータ構造は、以上のように構成されているため、次のような効果を得ることができる。
すなわち、筒状をなすと共に外方へ突出する第１軸受筒を有する後蓋と、前記後蓋に接続され筒状をなすと共に外方へ突出する第２軸受筒を有する前蓋と、前記前蓋と後蓋により形成される筐体の内壁に設けられた固定子と、前記各軸受筒に設けられた第１、第２軸受と、前記各軸受により回転自在に支持され前記固定子と対応する回転子を有する回転軸と、を備えたモータ構造において、
前記各軸受筒に形成され軸方向と交差する方向に貫通して形成された第１、第２貫通孔を有し、前記各軸受の外輪は前記各貫通孔を介して外部に通じていると共に、前記各軸受筒の各一端は外部に向けて解放され、前記各軸受は各軸受筒に対して軸方向に沿って摺動できる構成であることにより、何れかの軸受筒の貫通孔から治具を挿入して軸受を外側へ移動させることにより、軸受と回転軸が外側へ移動し、モータを分解することなく、簡単に軸受の交換ができる。
また、前記前蓋と後蓋は、圧入により接続されていることにより、軸受の取り出し時にも筐体は維持される。
また、前記前蓋と後蓋は、ネジにより接続されていることにより、軸受の取り出し時にも筐体は維持される。 Since the motor structure according to the present invention is configured as described above, the following effects can be obtained.
That is, a rear cover having a first bearing cylinder that is cylindrical and protrudes outward, a front lid that is connected to the rear cover and has a second bearing cylinder that protrudes outward while being cylindrical, and the front Corresponding to the stator that is rotatably supported by the respective stators, the stator provided on the inner wall of the housing formed by the lid and the rear lid, the first and second bearings provided in the respective bearing cylinders In a motor structure provided with a rotating shaft having a rotor that
The first and second through holes formed in the bearing cylinders and penetrating in a direction intersecting the axial direction, and the outer ring of each bearing communicates with the outside through the through holes. One end of each of the bearing cylinders is released toward the outside, and each of the bearings is configured to be slidable along the axial direction with respect to each of the bearing cylinders. By inserting the tool and moving the bearing to the outside, the bearing and the rotary shaft move to the outside, and the bearing can be easily replaced without disassembling the motor.
Further, since the front lid and the rear lid are connected by press fitting, the housing is maintained even when the bearing is taken out.
Further, since the front lid and the rear lid are connected by screws, the housing is maintained even when the bearing is taken out.

本発明によるモータ構造を示す斜視図である。It is a perspective view which shows the motor structure by this invention. 図１の分解斜視図である。FIG. 2 is an exploded perspective view of FIG. 1. 図１の拡大断面図である。It is an expanded sectional view of FIG. 図３の軸受を移動させた状態を示す断面図である。It is sectional drawing which shows the state which moved the bearing of FIG. 図３の軸受を移動させた状態を示す断面図である。It is sectional drawing which shows the state which moved the bearing of FIG. 図３の他の形態の断面図である。It is sectional drawing of the other form of FIG. 図６の軸受を移動させた状態を示す断面図である。It is sectional drawing which shows the state which moved the bearing of FIG. 図６の軸受を移動させた状態を示す断面図である。It is sectional drawing which shows the state which moved the bearing of FIG. 従来のモータ構造を示す斜視図である。It is a perspective view which shows the conventional motor structure. 図９の分解斜視図である。FIG. 10 is an exploded perspective view of FIG. 9. 従来のモータ構造の断面図である。It is sectional drawing of the conventional motor structure. 従来のモータ構造の断面図である。It is sectional drawing of the conventional motor structure.

本発明は、筐体を分解することなく軸受の交換を可能とするようにしたモータ構造を提供することを目的とする。   An object of the present invention is to provide a motor structure that enables replacement of a bearing without disassembling the casing.

以下、図面と共に本発明によるモータ構造の好適な実施の形態について説明する。
尚、従来例と同一又は同等部分については、同一符号を用いて説明する。
図１は、本発明によるモータ構造を示し、筐体１は互いに嵌合部４を介して嵌合により接続された前蓋２と後蓋３とからなり、この筐体１内には、図３で示されるように、固定子５が設けられている。 Hereinafter, preferred embodiments of a motor structure according to the present invention will be described with reference to the drawings.
Note that the same or equivalent parts as in the conventional example will be described using the same reference numerals.
FIG. 1 shows a motor structure according to the present invention. A housing 1 is composed of a front lid 2 and a rear lid 3 which are connected to each other by fitting through a fitting portion 4. As indicated by 3, a stator 5 is provided.

前記前蓋２の軸心位置には、軸方向Ａに沿って外方へ解放された状態で突出する第２軸受筒６が設けられ、この第２軸受筒６には軸方向Ａに対して交差（直交の場合もある）する方向の長孔からなる第２貫通孔２０が設けられ、この第２貫通孔２０はこの第２軸受筒６の周面に沿って長孔状となり、１８０度対向して一対設けられている。   A second bearing cylinder 6 is provided at the axial center position of the front lid 2 so as to protrude outwardly along the axial direction A. The second bearing cylinder 6 is provided with respect to the axial direction A. A second through hole 20 having a long hole in a direction that intersects (may be orthogonal) is provided, and the second through hole 20 has a long hole shape along the peripheral surface of the second bearing cylinder 6 and is 180 degrees. A pair is provided facing each other.

前記第２軸受筒６内には第２軸受８が内設され、この第２軸受８の外側にはＣリング２１が設けられていることにより、第２軸受８は第２軸受筒６から離脱することのないように構成されている。   A second bearing 8 is provided inside the second bearing cylinder 6, and a C ring 21 is provided outside the second bearing 8, so that the second bearing 8 is detached from the second bearing cylinder 6. It is configured not to do.

前記後蓋３の軸心位置には、軸方向Ａに沿って前記第２軸受筒６とは反対方向の外方へ解放された状態で突出する第１軸受筒７がＣリング２３を有して設けられ、この第１軸受筒７には軸方向Ａに対して交差（直交の場合もある）する方向の長孔からなる第１貫通孔２２が設けられ、この第１貫通孔２２はこの第１軸受筒７の周面に沿って長孔状となり、１８０度対向して一対設けられている。
尚、前述の各貫通孔２０，２２の形状は前述の形状に限ることなく、四角等の他の形状としてもよく、さらに、その数も一対に限ることなく、一対以上の任意の数とすることもできると共に、各軸受８，９の外輪８ａ，９ａは各貫通孔２０，２２を介して外部と通じている。 At the axial center position of the rear lid 3, a first bearing cylinder 7 that protrudes along the axial direction A in an outwardly released direction opposite to the second bearing cylinder 6 has a C ring 23. The first bearing cylinder 7 is provided with a first through hole 22 which is a long hole extending in a direction intersecting (possibly orthogonal to) the axial direction A. The first through hole 22 A long hole is formed along the peripheral surface of the first bearing cylinder 7, and a pair is provided to face each other by 180 degrees.
The shape of each of the through holes 20 and 22 is not limited to the above-described shape, and may be other shapes such as a square. Furthermore, the number is not limited to a pair, and may be an arbitrary number of a pair or more. In addition, the outer rings 8a and 9a of the bearings 8 and 9 communicate with the outside through the through holes 20 and 22, respectively.

前記各軸受８，９間には、回転子１０を有する回転軸１１が回転自在に設けられ、この回転軸１１の一端１１ａは、第２軸受８を貫通して外方へ突出させるように構成されている。   A rotary shaft 11 having a rotor 10 is rotatably provided between the bearings 8 and 9, and one end 11 a of the rotary shaft 11 is configured to penetrate the second bearing 8 and protrude outward. Has been.

次に、前述の構成において、筐体１の形状を分解することなく、各軸受８，９を交換する場合について述べる。
まず、図３の状態において、各軸受筒６，７の各Ｃリング２１，２３を除去し、各貫通孔２０，２２に棒状等の治具（図示せず）を挿入して各軸受８ａ，９ａを左方向へ少しずらせた後、回転軸１１を治具（図示せず）で左方向へ押すことにより、各軸受８，９の外輪８ａ，９ａが各軸受筒６，７に対して摺動し、図４で示されるように、各軸受８，９が各軸受筒６，７から離脱した状態となる。 Next, the case where the bearings 8 and 9 are replaced without disassembling the shape of the housing 1 in the above-described configuration will be described.
First, in the state shown in FIG. 3, the C-rings 21 and 23 of the bearing cylinders 6 and 7 are removed, and jigs (not shown) such as rods are inserted into the through-holes 20 and 22, respectively. After slightly shifting 9a to the left, the outer ring 8a, 9a of each bearing 8, 9 is slid with respect to each bearing cylinder 6, 7 by pushing the rotating shaft 11 to the left with a jig (not shown). As shown in FIG. 4, the bearings 8 and 9 are separated from the bearing cylinders 6 and 7, respectively.

前述の状態下で、図４における第１軸受９を回転軸１１から引き抜いて新品と交換する。
次に、図４の状態の回転軸１１を治具（図示せず）によって右側に移動させると、回転軸１１は図４から図５で示されるように移動し、この状態で第２軸受８を回転軸１１から除去して新品と交換すると、回転軸１１上の各軸受８，９は新品との交換が完了する。 Under the above-described state, the first bearing 9 in FIG. 4 is pulled out from the rotating shaft 11 and replaced with a new one.
Next, when the rotary shaft 11 in the state of FIG. 4 is moved to the right side by a jig (not shown), the rotary shaft 11 moves as shown in FIGS. 4 to 5, and in this state, the second bearing 8 Is removed from the rotating shaft 11 and replaced with a new one, the bearings 8 and 9 on the rotating shaft 11 are completely replaced with new ones.

尚、図６から図８で示される他の形態の構成においては、前述の前蓋２と後蓋３との接続構造が、嵌合による接続からネジ３０によるネジ締めによって接続する構成に変更されているのみで、他の構成はこれまでと同一であるため、同一符号を付し、説明を省略するものとする。   In addition, in the structure of the other form shown by FIGS. 6-8, the connection structure of the above-mentioned front cover 2 and rear cover 3 is changed into the structure connected by the screw fastening by the screw 30 from the connection by fitting. However, since the other configurations are the same as heretofore, the same reference numerals are given and the description is omitted.

本発明によるモータ構造は、モータのみならず、各種回転機器への適用が可能となる。   The motor structure according to the present invention can be applied not only to the motor but also to various rotating devices.

１ 筐体
１ａ 嵌合部
２ 前蓋
３ 後蓋
５ 固定子
６ 第２軸受筒
７ 第１軸受筒
８ 第２軸受
８ａ 第２外輪
９ 第１軸受
９ａ 第１外輪
１０ 回転子
１１ 回転軸
Ａ 軸方向
１１ａ 一端
２０ 第２貫通孔
２１ Ｃリング
２２ 第１貫通孔
２３ Ｃリング DESCRIPTION OF SYMBOLS 1 Case 1a Fitting part 2 Front lid 3 Rear lid 5 Stator 6 2nd bearing cylinder 7 1st bearing cylinder 8 2nd bearing 8a 2nd outer ring 9 1st bearing 9a 1st outer ring 10 Rotor 11 Rotating shaft A axis Direction 11a One end 20 Second through hole 21 C ring 22 First through hole 23 C ring

Claims (3)

筒状をなすと共に外方へ突出する第１軸受筒(7)を有する後蓋(3)と、前記後蓋(3)に接続され筒状をなすと共に外方へ突出する第２軸受筒(6)を有する前蓋(2)と、前記前蓋(2)と後蓋(3)により形成される筐体(1)の内壁に設けられた固定子(5)と、前記各軸受筒(6,7)に設けられた第１、第２軸受(9,8)と、前記各軸受(9,8)により回転自在に支持され前記固定子(5)と対応する回転子(10)を有する回転軸(11)と、を備えたモータ構造において、
前記各軸受筒(6,7)に形成され軸方向(A)と交差する方向に貫通して形成された第１、第２貫通孔(22,20)を有し、前記各軸受(8,9)の外輪(8a,9a)は前記各貫通孔(22,20)を介して外部に通じていると共に、前記各軸受筒(6,7)の各一端(6a,7a)は外部に向けて解放され、前記各軸受(8,9)は各軸受筒(6,7)に対して軸方向(A)に沿って摺動できる構成であることを特徴とするモータ構造。 A rear cover (3) having a first bearing cylinder (7) that has a cylindrical shape and protrudes outward, and a second bearing cylinder that is connected to the rear cover (3) and has a cylindrical shape and protrudes outwardly ( 6) a front lid (2), a stator (5) provided on the inner wall of the housing (1) formed by the front lid (2) and the rear lid (3), and each bearing cylinder ( 6, 7) provided with first and second bearings (9, 8) and a rotor (10) corresponding to the stator (5) supported rotatably by the bearings (9, 8). A motor structure having a rotating shaft (11) having,
The first and second through holes (22, 20) formed in the bearing cylinders (6, 7) and penetrating in the direction intersecting the axial direction (A), and the bearings (8, The outer ring (8a, 9a) of 9) communicates with the outside through the through holes (22, 20), and each end (6a, 7a) of the bearing cylinder (6, 7) faces the outside. The motor structure, wherein the bearings (8, 9) are configured to be slidable along the axial direction (A) with respect to the bearing cylinders (6, 7). 前記前蓋(2)と後蓋(3)は、圧入により接続されていることを特徴とする請求項１記載のモータ構造。   The motor structure according to claim 1, wherein the front lid (2) and the rear lid (3) are connected by press-fitting. 前記前蓋(2)と後蓋(3)は、ネジ(30)により接続されていることを特徴とする請求項１記載のモータ構造。   The motor structure according to claim 1, wherein the front lid (2) and the rear lid (3) are connected by a screw (30).
JP2010123283A 2010-05-28 2010-05-28 Motor structure Expired - Fee Related JP5499256B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107546937A (en) * 2017-09-05 2018-01-05 深圳市鑫台铭智能装备股份有限公司 Brshless DC motor rear case component automatic press mounting separator and press fitting method for separating
CN111975723A (en) * 2020-07-10 2020-11-24 广州市耐诺电器有限公司 Circular step motor assembly jig reaches assembly quality including this anchor clamps

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5525729U (en) * 1978-08-09 1980-02-19
JP2007174789A (en) * 2005-12-21 2007-07-05 Nsk Ltd Motor with position adjusting mechanism

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5525729U (en) * 1978-08-09 1980-02-19
JP2007174789A (en) * 2005-12-21 2007-07-05 Nsk Ltd Motor with position adjusting mechanism

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107546937A (en) * 2017-09-05 2018-01-05 深圳市鑫台铭智能装备股份有限公司 Brshless DC motor rear case component automatic press mounting separator and press fitting method for separating
CN107546937B (en) * 2017-09-05 2024-03-29 深圳市鑫台铭智能装备股份有限公司 Automatic press-fitting sorting machine and press-fitting sorting method for brushless direct current motor rear cover assembly
CN111975723A (en) * 2020-07-10 2020-11-24 广州市耐诺电器有限公司 Circular step motor assembly jig reaches assembly quality including this anchor clamps

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