JP2012219983A - Orthogonal axis geared motor - Google Patents

Orthogonal axis geared motor Download PDF

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JP2012219983A
JP2012219983A JP2011089240A JP2011089240A JP2012219983A JP 2012219983 A JP2012219983 A JP 2012219983A JP 2011089240 A JP2011089240 A JP 2011089240A JP 2011089240 A JP2011089240 A JP 2011089240A JP 2012219983 A JP2012219983 A JP 2012219983A
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gear
output shaft
shaft
motor
reduction
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Hiroyuki Kato
裕之 加藤
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Oriental Motor Co Ltd
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Oriental Motor Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a compact orthogonal axis geared motor having high flexibility of a mounting direction of the geared motor and high product strength.SOLUTION: In the orthogonal axis geared motor, a gear output shaft is arranged in a direction orthogonal to a motor output shaft 21. The orthogonal axis geared motor includes: a deceleration shaft 50 supporting a face gear 5 engaged with a pinion 21a provided in the motor output shaft 21; and the gear output shaft 60 having a deceleration gear 6 engaged with a pinion 50a provided in the deceleration shaft 50. The respective shafts 21, 50, 60 are arranged so that upper sides of axial center cut faces of the motor output shaft 21, the deceleration shaft 50 and the gear output shaft 60 form the same plane.

Description

本発明は、モータと、モータ軸の回転を直交方向に変換して出力するギヤとを組み合わせた直交軸ギヤードモータに関する。   The present invention relates to an orthogonal shaft geared motor that combines a motor and a gear that converts the rotation of a motor shaft into an orthogonal direction and outputs the same.

直交軸ギヤードモータにあっては、ギヤ出力軸と取付ボルト通し孔の位置関係がしばしば問題となる。
たとえば、特許文献1では、ギヤ出力軸を4つの取付ボルト通し孔の中央に位置させている。このため、ギヤードモータの取り付け方向が各面で可能であることから4方向可能であり、取り付けの自由度が高い。しかしながら、内部構造を見ると、直交ギヤであるハイポイドギヤを減速の最終段に配置しているため、製造コストや製品強度面で問題が残る。
一方、特許文献2では、ハイポイドギヤを初段に配置しているため、製造コストや製品強度面では有利であるが、取付ボルト通し孔を正方形の対角線上に配することができず、各面での取付けが不可能で、取り付け方向の自由度が低い。
In the orthogonal shaft geared motor, the positional relationship between the gear output shaft and the mounting bolt through hole is often a problem.
For example, in Patent Document 1, the gear output shaft is positioned at the center of four mounting bolt through holes. For this reason, since the attachment direction of a geared motor is possible on each surface, four directions are possible and the freedom degree of attachment is high. However, looking at the internal structure, since the hypoid gear, which is an orthogonal gear, is arranged at the final stage of deceleration, problems remain in terms of manufacturing cost and product strength.
On the other hand, in Patent Document 2, since the hypoid gear is arranged in the first stage, it is advantageous in terms of manufacturing cost and product strength, but the mounting bolt through holes cannot be arranged on a square diagonal line, Mounting is impossible and the degree of freedom in mounting direction is low.

特開平10−299840号公報Japanese Patent Laid-Open No. 10-299840 特開2005−042926号公報JP 2005-042926 A

本発明は従来の問題を解決し、ギヤードモータの取り付け方向の自由度が高く、製品強度が高く、かつコンパクトな直交軸ギヤードモータを提供することを目的とする。   An object of the present invention is to solve the conventional problems and to provide a compact orthogonal shaft geared motor having a high degree of freedom in the mounting direction of the geared motor, high product strength, and compactness.

本発明は、上記課題を解決するため、モータ出力軸に対してギヤ出力軸を直交する方向に配設した直交軸ギヤードモータであって、前記モータ出力軸に設けられたピニオンと噛合するフェースギヤを支持する減速軸と、該減速軸に設けられたピニオンと噛合する減速ギヤが設けられた前記ギヤ出力軸とを有し、前記モータ出力軸と、前記減速軸と前記ギヤ出力軸の各々の軸心切断面上が同一平面になるように前記各軸を配設したことにある。
また、本発明は、前記ギヤを内蔵したギヤケースをモータケースに並設し、かつ前記ギヤ出力軸と平行な2つの側面を前記モータケースの側面と面一になるように形成し、かつ前記ギヤ出力軸を軸支した取付面の前記ギヤ出力軸を中心とする四角形の対角線上に取付ボルト通し孔を形成したことにある。そして、4つの取付ボルト通し孔を四角形の対角線上に配置し、その中心にギヤ出力軸が配設されるようにした。
In order to solve the above problems, the present invention is an orthogonal shaft geared motor in which a gear output shaft is disposed in a direction orthogonal to a motor output shaft, and a face gear meshing with a pinion provided on the motor output shaft. And a gear output shaft provided with a reduction gear meshing with a pinion provided on the reduction shaft, and each of the motor output shaft, the reduction shaft, and the gear output shaft. The respective axes are arranged so that the axial center cut surface is on the same plane.
In the present invention, the gear case incorporating the gear is arranged in parallel with the motor case, and two side surfaces parallel to the gear output shaft are formed to be flush with the side surface of the motor case. The mounting bolt through hole is formed on a rectangular diagonal line centering on the gear output shaft of the mounting surface that pivotally supports the output shaft. The four mounting bolt through holes are arranged on a rectangular diagonal line, and the gear output shaft is arranged at the center thereof.

本発明の直交軸ギヤードモータによれば、モータ出力軸の延長線上にフェースギヤの軸を配設し、さらにギヤ出力軸もその延長線上に配設するようにしたので、ギヤケースの幅を最も小さくすることができる。
また、ギヤ出力軸を軸支したギヤ取付面の前記ギヤ出力軸を中心とする四角形の対角線上に取付ボルト通し孔を形成したので、ギヤードモータの取付ボルト通し孔を、正方形の対角線の交点がギヤ出力軸の中心になるように配設できることから、ギヤードモータの取り付け方向を表取付面4方向、裏取付面4方向の、合計8つの方向から任意に選択することができる。
According to the orthogonal shaft geared motor of the present invention, the face gear shaft is disposed on the extension line of the motor output shaft, and the gear output shaft is also disposed on the extension line. Therefore, the width of the gear case is minimized. can do.
In addition, since the mounting bolt through hole is formed on the square diagonal line centering on the gear output shaft of the gear mounting surface that supports the gear output shaft, the geared motor mounting bolt through hole is formed at the intersection of the square diagonal lines. Since it can be disposed so as to be the center of the gear output shaft, the mounting direction of the geared motor can be arbitrarily selected from a total of eight directions including the front mounting surface 4 direction and the back mounting surface 4 direction.

本発明の第1の実施の形態による直交軸ギヤードモータを示す斜視図である。It is a perspective view which shows the orthogonal axis geared motor by the 1st Embodiment of this invention. 本発明の第1の実施の形態による直交軸ギヤードモータを示す正面図である。It is a front view which shows the orthogonal axis geared motor by the 1st Embodiment of this invention. 本発明の第1の実施の形態による直交軸ギヤードモータを示す図2のA−A線部分断面図である。FIG. 3 is a partial cross-sectional view taken along line AA of FIG. 2 showing the orthogonal shaft geared motor according to the first embodiment of the present invention. 図3のケースフランジを外して示すB−B線部分断面図である。FIG. 4 is a partial cross-sectional view taken along line B-B with the case flange of FIG. 3 removed. 本発明の第2の実施の形態による直交軸ギヤードモータの減速機内部を断面にして示す部分断面図である。It is a fragmentary sectional view which shows the inside of the reduction gear of the orthogonal axis geared motor by the 2nd Embodiment of this invention in a cross section. 図5の平面図である。FIG. 6 is a plan view of FIG. 5. 本発明の第3の実施の形態による直交軸ギヤードモータの使用態様を示す減速機内部を断面にして示す部分断面図である。It is a fragmentary sectional view which makes the inside of a reduction gear the cross section which shows the usage condition of the orthogonal axis geared motor by the 3rd Embodiment of this invention.

以下、図面を用いて本発明の実施の形態を詳細に説明する。
図1ないし図4は、本発明の第1の実施の形態の直交軸ギヤードモータを示し、1はモータ2および減速機3からなる直交軸ギヤードモータである。モータ2および減速機3は、互いのモータケース20および減速機ケース30の四隅を4本の締結ボルト4を介して互いに締結して並設されている。モータ2は、出力軸21がモータケース20の開口穴から外部に導出されており、この出力軸21を減速機ケース30の開口穴30aから減速機ケース30内に挿入している。減速機ケース30は、図3に示すようにギヤケース31とケースフランジ32で箱型に構成されており、内部にフェースギヤ5を支持した減速軸50と、減速ギヤ6を支持したギヤ出力軸60が設けられている。前記モータ2は、モータケース20の上面にケーブル22を導入する導入口23が設けられており、電源および信号線等のケーブル22が纏めて配線されている。
前記減速軸50とギヤ出力軸60は、前記出力軸21と直交するように配設されており、両端部を、それぞれ軸受7,8を介して減速機ケース30に支持されている。
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1 to 4 show an orthogonal shaft geared motor according to a first embodiment of the present invention. Reference numeral 1 denotes an orthogonal shaft geared motor including a motor 2 and a speed reducer 3. The motor 2 and the speed reducer 3 are arranged in parallel by fastening the four corners of the motor case 20 and the speed reducer case 30 to each other via four fastening bolts 4. In the motor 2, the output shaft 21 is led out from the opening hole of the motor case 20, and the output shaft 21 is inserted into the reduction gear case 30 from the opening hole 30 a of the reduction gear case 30. As shown in FIG. 3, the speed reducer case 30 is formed in a box shape with a gear case 31 and a case flange 32, and includes a reduction shaft 50 that supports the face gear 5 therein, and a gear output shaft 60 that supports the reduction gear 6. Is provided. The motor 2 is provided with an introduction port 23 for introducing the cable 22 on the upper surface of the motor case 20, and the cables 22 such as a power source and a signal line are wired together.
The reduction shaft 50 and the gear output shaft 60 are disposed so as to be orthogonal to the output shaft 21, and both ends are supported by the reduction gear case 30 via bearings 7 and 8, respectively.

前記モータ2の出力軸21には、ピニオン21aが設けられており、このピニオン21aに前記フェースギヤ5が噛合している。前記フェースギヤ5を支持した減速軸50には、ピニオン50aが設けられており、このピニオン50aに前記減速ギヤ6が噛合している。   The output shaft 21 of the motor 2 is provided with a pinion 21a, and the face gear 5 is engaged with the pinion 21a. A reduction shaft 50 that supports the face gear 5 is provided with a pinion 50a, and the reduction gear 6 is engaged with the pinion 50a.

前記減速軸50とギヤ出力軸60は、前記出力軸21の軸心を通る切断面と、減速軸50とギヤ出力軸60のそれぞれ軸心を通る切断面とが同一面を構成するように配設されている。減速機ケース30の幅方向の厚みLをモータケース20の厚みLに比べてほぼ同一になる厚み(L=L)に形成されている。
また、減速機3を取り付ける取付け面には、正方形の4隅となる対角線上の頂点に取付ボルト9が設けられるように取付ボルト通し孔9aが形成されており、対角線の中心には前記ギヤ出力軸60が配置されるように構成されている。
前記減速軸50の端面には前記フェースギヤ5のスラスト調整用ねじ50bが設けられていて、スラスト調整用ねじ50bを操作することで、前記フェースギヤ5を前記モータ2の出力軸21のピニオン21aに噛み合う距離を調整している。
The reduction shaft 50 and the gear output shaft 60 are arranged such that a cut surface passing through the axis of the output shaft 21 and a cut surface passing through the respective axes of the reduction shaft 50 and the gear output shaft 60 constitute the same surface. It is installed. The thickness L 1 in the width direction of the speed reducer case 30 is formed to be substantially the same as the thickness L 0 of the motor case 20 (L 1 = L 0 ).
Further, a mounting bolt through hole 9a is formed on the mounting surface to which the speed reducer 3 is mounted so that mounting bolts 9 are provided at the apexes on the diagonal lines that are the four corners of the square, and the gear output is at the center of the diagonal line. The shaft 60 is configured to be disposed.
A thrust adjusting screw 50b of the face gear 5 is provided on an end surface of the speed reducing shaft 50, and the face gear 5 is moved to the pinion 21a of the output shaft 21 of the motor 2 by operating the thrust adjusting screw 50b. The distance to mesh with is adjusted.

前記ギヤ出力軸60は中空の円筒状に形成されており、両端いずれの側からも出力を取り出すことができる。また、図3に示すように出力を取り出さない方の減速機ケース30端面には、ギヤ出力軸60を覆うカバー33を設けることができる。   The gear output shaft 60 is formed in a hollow cylindrical shape, and the output can be taken from either side of both ends. Further, as shown in FIG. 3, a cover 33 that covers the gear output shaft 60 can be provided on the end face of the speed reducer case 30 from which the output is not extracted.

図5および図6は、図3と同一部分は同符号を付して同一部分の説明を省略して示す本発明の第2の実施の形態で、この場合、減速機ケース30Aの幅方向の厚みLをモータケース20の厚みLに比べて薄く(L<L)形成したものである。ギヤ出力軸60Aが設けられた部分の幅Lがモータケース20の厚みL以下になるように(L≦L)形成されている。こうして、減速機の厚みをモータ取付角寸法以下にすることにより、さらにスペースメリットに優れた直交軸ギヤードモータを提供することが可能となる。 5 and 6 show a second embodiment of the present invention in which the same parts as those in FIG. 3 are given the same reference numerals and the explanation of the same parts is omitted. In this case, the width direction of the reduction gear case 30A the thickness L 2 thinner than the thickness L 0 of the motor case 20 (L 2 <L 0) is obtained by forming. As the width L 3 of the portion gear output shaft 60A is provided is equal to or less than the thickness L 0 of the motor case 20 (L 3L 0) is formed. Thus, by setting the thickness of the speed reducer to be equal to or smaller than the motor mounting angle dimension, it is possible to provide an orthogonal shaft geared motor with further excellent space merit.

この実施の形態では、減速軸50Aの向きを変えて短縮し、フェースギヤ5Aの向きを代えて前記出力軸21の反対側(図示例では上側)に配置したものである。一方、減速ギヤ6Aも減速軸50Aの向きを変えたことに伴ってフェースギヤ5Aの反対側に移動し(図示下側)、減速軸50Aのピニオン50aに噛合している。減速ギヤ6Aを支持するギヤ出力軸60Aも減速ギヤ6Aとともに向きを変えることで、短縮を図ることができる。減速軸50Aおよびギヤ出力軸60Aを回転自在に支持する軸受7,8は、図3の実施の形態と同様である。図5では、カバー33を省略することで、幅方向の寸法Lをより短縮することができる。図6には、ギヤケース31とギヤフランジ32を固定する締結ボルト10がギヤケース31の四隅に設けられている。 In this embodiment, the direction of the speed reduction shaft 50A is changed and shortened, and the direction of the face gear 5A is changed and arranged on the opposite side (upper side in the illustrated example) of the output shaft 21. On the other hand, the reduction gear 6A also moves to the opposite side of the face gear 5A (lower side in the drawing) in accordance with the change of the direction of the reduction shaft 50A, and meshes with the pinion 50a of the reduction shaft 50A. The gear output shaft 60A that supports the reduction gear 6A can be shortened by changing its direction together with the reduction gear 6A. The bearings 7 and 8 that rotatably support the reduction shaft 50A and the gear output shaft 60A are the same as those in the embodiment of FIG. In FIG. 5, the dimension L 3 in the width direction can be further shortened by omitting the cover 33. In FIG. 6, fastening bolts 10 for fixing the gear case 31 and the gear flange 32 are provided at the four corners of the gear case 31.

図7は、図5と同一部分は同符号を付して同一部分の説明を省略して示す本発明の第3の実施の形態で、この場合、減速ギヤ6Aを支持するギヤ出力軸60Bを延長して外部に導出させ、この延長部に可動部11を直接取り付けることができる。可動部11としては、インデックステーブル等を取り付けることができる。可動部11は、キー、いもねじ、メカロック等によってギヤ出力軸60Bに固定することができる。12は減速機ケース30Aを固定するベースである。   FIG. 7 shows a third embodiment of the present invention in which the same parts as those in FIG. The movable part 11 can be directly attached to the extended part. An index table or the like can be attached as the movable portion 11. The movable portion 11 can be fixed to the gear output shaft 60B with a key, a potato screw, a mechanical lock, or the like. Reference numeral 12 denotes a base for fixing the reduction gear case 30A.

なお、本発明は、上記実施の形態のみに限定されるものではなく、例えば、減速機3の減速比は、モータ2の出力軸21のピニオン21aと、前記フェースギヤ5の歯数比を調整することで、前記減速軸50の回転数を調整することができる。そして、前記減速軸50のピニオン50aと、減速ギヤ6の歯数比を調整することで、ギヤ出力軸60の回転を制御することができる。これらの歯車の噛み合い比率を変えることで減速機の減速比を調整することができる。等、その他、本発明の要旨を変更しない範囲内で適宜、変更、変形して実施し得ることは言うまでもない。   The present invention is not limited to the above embodiment. For example, the reduction ratio of the reduction gear 3 is adjusted by adjusting the ratio of the number of teeth of the pinion 21a of the output shaft 21 of the motor 2 and the face gear 5. By doing so, the number of rotations of the reduction shaft 50 can be adjusted. The rotation of the gear output shaft 60 can be controlled by adjusting the gear ratio between the pinion 50 a of the reduction shaft 50 and the reduction gear 6. The reduction ratio of the reduction gear can be adjusted by changing the meshing ratio of these gears. In addition, it goes without saying that the present invention can be appropriately modified and modified without departing from the scope of the present invention.

1 直交軸ギヤードモータ
2 モータ
3 減速機
4,10 締結ボルト
5,5A フェースギヤ
6,6A 減速ギヤ
7,8 軸受
9 取付ボルト
9a 取付ボルト通し孔
11 可動部
20 モータケース
21 出力軸
21a,50a ピニオン
30 減速機ケース
50,50A 減速軸
50b スラスト調整用ねじ
60,60A,60B ギヤ出力軸
DESCRIPTION OF SYMBOLS 1 Orthogonal shaft geared motor 2 Motor 3 Reduction gear 4,10 Fastening bolt 5,5A Face gear 6,6A Reduction gear 7,8 Bearing 9 Mounting bolt 9a Mounting bolt through-hole 11 Movable part 20 Motor case 21 Output shaft 21a, 50a Pinion 30 Reduction gear case 50, 50A Reduction shaft 50b Thrust adjusting screw 60, 60A, 60B Gear output shaft

Claims (2)

モータ出力軸に対してギヤ出力軸を直交する方向に配設した直交軸ギヤードモータであって、
前記モータ出力軸に設けられたピニオンと噛合するフェースギヤを支持する減速軸と、
該減速軸に設けられたピニオンと噛合する減速ギヤが設けられた前記ギヤ出力軸とを有し、
前記モータ出力軸と、前記減速軸と前記ギヤ出力軸の各々の軸心切断面上が同一平面になるように前記各軸を配設したことを特徴とする直交軸ギヤードモータ。
An orthogonal shaft geared motor arranged in a direction orthogonal to the gear output shaft with respect to the motor output shaft,
A reduction shaft that supports a face gear that meshes with a pinion provided on the motor output shaft;
The gear output shaft provided with a reduction gear meshing with a pinion provided on the reduction shaft;
An orthogonal shaft geared motor, wherein the shafts are arranged so that the motor output shaft, the speed reduction shaft, and the gear output shaft have the same axial cut surface.
前記ギヤを内蔵したギヤケースをモータケースに並設し、かつ前記ギヤ出力軸と平行な2つの側面を前記モータケースの側面と面一になるように形成し、かつ前記ギヤ出力軸を軸支した取付面の前記ギヤ出力軸を中心とする四角形の対角線上に取付ボルト通し孔を形成したことを特徴とする請求項1に記載の直交軸ギヤードモータ。   A gear case incorporating the gear is juxtaposed with the motor case, and two side surfaces parallel to the gear output shaft are formed to be flush with the side surface of the motor case, and the gear output shaft is pivotally supported. 2. The orthogonal shaft geared motor according to claim 1, wherein a mounting bolt through hole is formed on a rectangular diagonal centered on the gear output shaft of the mounting surface.
JP2011089240A 2011-04-13 2011-04-13 Orthogonal axis geared motor Pending JP2012219983A (en)

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