JP3596906B2 - Transmission and motor coupling structure - Google Patents
Transmission and motor coupling structure Download PDFInfo
- Publication number
- JP3596906B2 JP3596906B2 JP10443294A JP10443294A JP3596906B2 JP 3596906 B2 JP3596906 B2 JP 3596906B2 JP 10443294 A JP10443294 A JP 10443294A JP 10443294 A JP10443294 A JP 10443294A JP 3596906 B2 JP3596906 B2 JP 3596906B2
- Authority
- JP
- Japan
- Prior art keywords
- transmission
- case
- electric motor
- input shaft
- intermediate flange
- 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.)
- Expired - Lifetime
Links
- 230000005540 biological transmission Effects 0.000 title claims description 71
- 230000008878 coupling Effects 0.000 title claims description 17
- 238000010168 coupling process Methods 0.000 title claims description 17
- 238000005859 coupling reaction Methods 0.000 title claims description 17
- 230000007246 mechanism Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
Images
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- General Details Of Gearings (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Retarders (AREA)
Description
【０００１】
【産業上の利用分野】
本発明は、遊星機構、ウォームホイール等の歯車や摩擦の伝動を利用した増減速機及び摩擦伝動を利用した無段変速機等の変速機と電動機の結合構造に関する。
【０００２】
【従来の技術】
変速機と電動機の結合構造として、電動機の回転軸が変速機の入力軸に同軸線上に連結されると共に電動機のケースが中間フランジを介して変速機のケースに連結されるようにしたものが周知である。
【０００３】
この結合構造によれば、所要の変速機に対して不特定多数の汎用電動機を任意に結合することが可能になり、変速機に対する電動機の組み替えが容易になる。
【０００４】
【発明が解決しようとする課題】
しかしながら、従来の前記結合構造では、変速機の入力軸が軸受を介して中間フランジに支持されると共に中間フランジが変速機構の入力軸側を被うものであるため、電動機の組み替えに際して中間フランジが変速機のケースから取り外されたときには変速機構の入力軸側が外部に露出することになり、中間フランジの交換と同時に変速機の分解組み立て及び潤滑油の入れ換えを要する等の問題があった。
【０００５】
さらに、前記結合構造では、中間フランジにおける入力軸外周に配置された軸受の外輪を支持するインロー部、並びに中間フランジにおける変速機のケース側のインロー部及び電動機側のインロー部の各加工手順が互いに異なり、しかも加工工数が増加することから、変速機と電動機の結合時に回転軸、入力軸及び伝動要素間に偏心が生じ易くなり、このために高精度の回転性能を得ることが困難であった。
【０００６】
本発明の課題は、電動機の回転軸、変速機の入力軸及び伝動要素について容易に同軸度を出すと共に高精度の回転性能を得ることができ、電動機の組み替えに際して変速機のケースから中間フランジが取り外されても変速機内部の機構が外部に露出することがない変速機と電動機の結合構造を提供することにある。
【０００７】
【課題を解決するための手段】
本発明に係る変速機と電動機の結合構造は、電動機の回転軸が変速機の入力軸に同軸線上に連結されると共に電動機のケースが中間フランジを介して変速機のケースに連結されるようにした変速機と電動機の結合構造において、変速機のケースは変速機の入力軸の外周を覆うように設けられるとともに、軸受を介して入力軸を回転自在に支持し、軸受の１つの外輪が、中間フランジ及び変速機のケースの各インロー部内周に嵌合支持されたことを特徴としている。
【０００８】
【作用】
前記構成において、入力軸外周に配置された軸受の１つの外輪が中間フランジ及び変速機のケースの各インロー部内周に嵌合支持されることから、変速機のケースの軸受支持部と伝動要素の支持部品とが一体加工され得ると共に中間フランジにおける変速機のケース側のインロー部と電動機側のインロー部とが一体加工され得るため、各加工が必然的に相関連して行われることになり、各嵌合構造に高い公差精度が得られると共に電動機の回転軸、変速機の入力軸及び伝動要素について容易に同軸度を出すことができる。
【０００９】
また、前記構成では、電動機の組み替えに際して中間フランジが前記軸受の外輪上において変速機のケースから取り外されることから、中間フランジの取り外し後も変速機内部の機構が変速機のケース及び前記軸受で封止されることになる。
【００１０】
【実施例】
以下、本発明を実施例に基づいて具体的に説明する。
図１は本発明の第一実施例に係る変速機と電動機の結合構造を示す断面図である。同図において、変速機１は、ケース２に、中心軸上で回転駆動される太陽歯車３とケース２内周に固定された内歯歯車４とそれらに噛合された複数の遊星歯車５とからなる１段以上の遊星歯車機構を入力軸６と出力軸７との間において内装してなる遊星歯車減速機から構成され、ケース２の入力側端部にインロー部２ａが設けられる。
【００１１】
電動機１１の回転軸１２は変速機１の入力軸６に同軸線上にキー連結され、電動機１１のケース１３に中間フランジ１４がその大径端において各インロー部１１ａ、１４ａを介して嵌合され、該中間フランジ１４の小径端に、変速機１のケース２の入力側端部と連結するためのインロー部１４ｂが設けられる。
【００１２】
入力軸６は２列の軸受２１、２２を介して変速機１のケース２に支持されると共にケース２と入力軸６とに太陽歯車３と軸受２１との中間においてオイルシール１５が介設され、特に電動機側の軸受２２の外輪は中間フランジ１４及び変速機１のケース２の各インロー部１４ｂ、２ａ内周に嵌合支持されると共に該嵌合部分に精密なインロー継手が形成され、前記嵌合後は中間フランジ１４及び変速機１のケース２間がボルト２３で固定される。
【００１３】
前記構成では、電動機１１の組み替えに際して中間フランジ１４が取り外されても、変速機１内部の遊星歯車機構が外部に露出することがない。
【００１４】
図２は本発明の第二実施例に係る変速機と電動機の結合構造を示す断面図である。同図において、第一実施例と同様の変速機１に第一実施例の電動機１１より小径の電動機１１を結合するために、その電動機１１のケース１３とインロー接合可能に小さな大径端を備えた中間フランジ１４が使用されている。なお、前記以外の構成及び作用効果等は実施例１と同様であるので、詳細な説明を省略する。
【００１５】
図３は従来技術に係る変速機と電動機の結合構造を示す断面図である。同図において、変速機１の入力軸６が２列の軸受２１、２２を介して中間フランジ１１４に支持されると共に中間フランジ１１４がその各端において電動機１１のケース１１３及び変速機１のケース１０２に各々連結されているため、電動機１１の組み替えに際して中間フランジ１１４がボルト２３と共に変速機１のケース１０２から取り外されたときは遊星歯車機構の入力軸側が全て外部に露出することになる。
【００１６】
【発明の効果】
本発明に係る変速機と電動機の結合構造は以上のように構成されるので、電動機の回転軸、変速機の入力軸及び伝動要素について容易に同軸度を出すと共に高精度の回転性能を得ることができ、電動機の組み替えに際して変速機のケースから中間フランジが取り外されても変速機内部の機構が外部に露出することがない。
【図面の簡単な説明】
【図１】本発明の第一実施例に係る変速機と電動機の結合構造を示す断面図である。
【図２】本発明の第二実施例に係る変速機と電動機の結合構造を示す断面図である。
【図３】従来技術に係る変速機と電動機の結合構造を示す断面図である。
【符号の説明】
１ 変速機
２ ケース
２ａ インロー部
６ 入力軸
１１ 電動機
１２ 回転軸
１３ ケース
１４ 中間フランジ
１４ｂ インロー部
２２ 軸受[0001]
[Industrial applications]
The present invention relates to a coupling structure between a transmission and an electric motor, such as a planetary mechanism, a speed increasing / decreasing device using friction transmission and a gear such as a worm wheel, and a continuously variable transmission using friction transmission.
[0002]
[Prior art]
2. Description of the Related Art As a coupling structure between a transmission and an electric motor, a structure in which a rotating shaft of the electric motor is coaxially connected to an input shaft of the transmission and a case of the electric motor is connected to a case of the transmission through an intermediate flange is well known. It is.
[0003]
According to this coupling structure, it is possible to arbitrarily couple an unspecified number of general-purpose motors to a required transmission, and it is easy to change the electric motors to the transmission.
[0004]
[Problems to be solved by the invention]
However, in the conventional coupling structure, the input shaft of the transmission is supported by the intermediate flange via the bearing, and the intermediate flange covers the input shaft side of the transmission mechanism. When the transmission mechanism is removed from the transmission case, the input shaft side of the transmission mechanism is exposed to the outside, so that there is a problem in that it is necessary to disassemble and assemble the transmission and replace the lubricating oil at the same time as replacing the intermediate flange.
[0005]
Further, in the coupling structure, the machining steps of the spigot portion for supporting the outer ring of the bearing disposed on the outer periphery of the input shaft in the intermediate flange, and the spigot portion on the case side of the transmission and the spigot portion on the motor side in the intermediate flange are mutually performed. In addition, since the number of processing steps increases, eccentricity tends to occur between the rotating shaft, the input shaft, and the transmission element when the transmission and the electric motor are connected, and it is difficult to obtain high-precision rotating performance. .
[0006]
It is an object of the present invention to easily obtain coaxiality with respect to a rotating shaft of a motor, an input shaft of a transmission, and a transmission element, and to obtain high-precision rotating performance. An object of the present invention is to provide a coupling structure between a transmission and an electric motor in which a mechanism inside the transmission is not exposed to the outside even when the transmission is removed.
[0007]
[Means for Solving the Problems]
The coupling structure of the transmission and the electric motor according to the present invention is such that the rotating shaft of the electric motor is coaxially connected to the input shaft of the transmission and the case of the electric motor is connected to the case of the transmission via the intermediate flange. In the coupling structure of the transmission and the electric motor, the case of the transmission is provided so as to cover the outer periphery of the input shaft of the transmission, and the input shaft is rotatably supported via a bearing. It is characterized in that it is fitted and supported on the intermediate flange and the inner periphery of each spigot portion of the transmission case.
[0008]
[Action]
In the above configuration, since one outer ring of the bearing arranged on the outer periphery of the input shaft is fitted and supported on the intermediate flange and the inner periphery of each spigot portion of the transmission case, the bearing support portion of the transmission case and the transmission element Since the supporting part and the spigot part on the case side of the transmission and the spigot part on the electric motor side in the intermediate flange can be integrally formed while the supporting parts can be integrally processed, each processing is necessarily performed in association with each other, A high tolerance accuracy can be obtained for each fitting structure, and coaxiality can be easily obtained for the rotating shaft of the electric motor, the input shaft of the transmission, and the transmission element.
[0009]
Further, in the above configuration, the intermediate flange is removed from the transmission case on the outer ring of the bearing when the electric motor is rearranged. Therefore, even after the intermediate flange is removed , the mechanism inside the transmission is sealed by the transmission case and the bearing. Will be stopped.
[0010]
【Example】
Hereinafter, the present invention will be specifically described based on examples.
FIG. 1 is a sectional view showing a coupling structure of a transmission and an electric motor according to a first embodiment of the present invention. In FIG. 1, a
[0011]
The
[0012]
The
[0013]
In the above configuration, even if the
[0014]
FIG. 2 is a sectional view showing a coupling structure of a transmission and an electric motor according to a second embodiment of the present invention. In the same figure, in order to couple a
[0015]
FIG. 3 is a cross-sectional view showing a coupling structure between a transmission and an electric motor according to the related art. In the figure, the
[0016]
【The invention's effect】
Since the coupling structure of the transmission and the motor according to the present invention is configured as described above, it is possible to easily obtain coaxiality with respect to the rotation axis of the motor, the input shaft of the transmission, and the transmission element, and obtain high-precision rotation performance. can be, machine configuration in the transmission portion be intermediate flange is removed from the case of the transmission when recombination of the motor is not exposed to the outside.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view illustrating a coupling structure of a transmission and an electric motor according to a first embodiment of the present invention.
FIG. 2 is a cross-sectional view illustrating a coupling structure between a transmission and an electric motor according to a second embodiment of the present invention.
FIG. 3 is a cross-sectional view showing a coupling structure between a transmission and an electric motor according to the related art.
[Explanation of symbols]
Claims (1)
前記変速機のケースは前記変速機の入力軸の外周を覆うように設けられるとともに、軸受を介して前記入力軸を回転自在に支持し、
前記軸受の１つの外輪が、前記中間フランジ及び変速機のケースの各インロー部内周に嵌合支持されたことを特徴とする、
変速機と電動機の結合構造。In a coupling structure of a transmission and an electric motor, a rotating shaft of the electric motor is coaxially connected to an input shaft of the transmission and a case of the electric motor is connected to a case of the transmission via an intermediate flange.
The case of the transmission is provided so as to cover the outer periphery of the input shaft of the transmission, and rotatably supports the input shaft via a bearing,
One outer ring of the bearing is fitted and supported on the inner circumference of each of the spigot portions of the intermediate flange and the case of the transmission.
Combination structure of transmission and motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10443294A JP3596906B2 (en) | 1994-04-19 | 1994-04-19 | Transmission and motor coupling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10443294A JP3596906B2 (en) | 1994-04-19 | 1994-04-19 | Transmission and motor coupling structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07298547A JPH07298547A (en) | 1995-11-10 |
| JP3596906B2 true JP3596906B2 (en) | 2004-12-02 |
Family
ID=14380518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10443294A Expired - Lifetime JP3596906B2 (en) | 1994-04-19 | 1994-04-19 | Transmission and motor coupling structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3596906B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4609973B2 (en) * | 2001-02-02 | 2011-01-12 | 株式会社ショーワ | Electric power steering device |
| JP4609972B2 (en) * | 2001-02-02 | 2011-01-12 | 株式会社ショーワ | Electric power steering device |
| JP4609974B2 (en) * | 2001-02-27 | 2011-01-12 | 株式会社ショーワ | Electric power steering device |
| JP5318282B2 (en) * | 2010-03-31 | 2013-10-16 | アイシン・エィ・ダブリュ株式会社 | Vehicle drive device |
| JP5750014B2 (en) | 2011-09-19 | 2015-07-15 | アイシン・エィ・ダブリュ株式会社 | Planetary gear unit |
| KR102496799B1 (en) * | 2017-10-31 | 2023-02-06 | 현대자동차 주식회사 | Coupling structure of motor and reducer |
| DE102019206236A1 (en) * | 2019-04-30 | 2020-11-05 | Zf Friedrichshafen Ag | Housing with two mutually aligned housing parts for a structural unit of a vehicle drive train |
-
1994
- 1994-04-19 JP JP10443294A patent/JP3596906B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07298547A (en) | 1995-11-10 |
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