JPH02195023A - Oldham coupling - Google Patents
Oldham couplingInfo
- Publication number
- JPH02195023A JPH02195023A JP1330389A JP1330389A JPH02195023A JP H02195023 A JPH02195023 A JP H02195023A JP 1330389 A JP1330389 A JP 1330389A JP 1330389 A JP1330389 A JP 1330389A JP H02195023 A JPH02195023 A JP H02195023A
- Authority
- JP
- Japan
- Prior art keywords
- axial direction
- revolving shaft
- shaft
- oldham joint
- recess
- 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.)
- Pending
Links
- 230000008878 coupling Effects 0.000 title abstract 6
- 238000010168 coupling process Methods 0.000 title abstract 6
- 238000005859 coupling reaction Methods 0.000 title abstract 6
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/02—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions
- F16D3/04—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted to allow radial displacement, e.g. Oldham couplings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rotary Pumps (AREA)
Abstract
Description
【発明の詳細な説明】 (産業上の利用分野〕 本発明は、2つの軸を連結するオルダム継手に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to an Oldham joint that connects two shafts.
本発明に係るオルダム継手は、サーボモータと検出器、
又は工作機械や一般機械における軸と軸との結合に利用
され得る。The Oldham joint according to the present invention includes a servo motor, a detector,
Or it can be used to connect shafts in machine tools and general machines.
オルダム継手はその両端面において、夫々対応した軸と
の間で回転力を伝達する部品であり、各軸と相対的に摺
動可能な係合部を有しており、該係合部と各軸の対応し
た係合部との間にはその軸方向において隙間を有するも
のが一般的である。Oldham's joint is a part that transmits rotational force between the corresponding shafts on both end faces, and has an engaging part that can slide relative to each shaft, and has an engaging part that can slide relative to each shaft. Generally, there is a gap in the axial direction between the shaft and the corresponding engaging portion.
上記軸方向隙間の存在により、オルダム継手は連結軸の
軸線方向に対して傾斜し易(、オルダム継手が傾斜する
と2つの軸間において回転が正確には伝達されない、こ
のため、特にサーボモータの回転軸と、該回転軸の回転
検出器の軸とを連結する部品として使用する場合の様に
正確さを要求される所では軸とオルダム継手との係合部
を軸方向に長くすることによりオルダム継手の傾斜を防
止していた。Due to the existence of the above-mentioned axial clearance, the Oldham joint tends to tilt with respect to the axial direction of the connecting shaft (If the Oldham joint tilts, rotation cannot be accurately transmitted between the two shafts. In places where accuracy is required, such as when using the shaft as a component to connect the rotary shaft to the shaft of a rotation detector, the Oldham joint can be used by making the engagement part between the shaft and the Oldham joint longer in the axial direction. This prevented the joint from tilting.
然しながらスペース上の問題から、上述の様に係合部を
軸方向に長く設定することの困難な場合も多い。However, due to space issues, it is often difficult to make the engaging portion long in the axial direction as described above.
依って本発明は斯る課題の解決を図るべく、軸方向に短
いと共に、傾斜し難いオルダム継手の提供を目的とする
。Therefore, in order to solve these problems, the present invention aims to provide an Oldham joint that is short in the axial direction and is difficult to tilt.
上記目的に鑑みて本発明は、各端面には、対応した軸と
該各端面の面内の一方向に互いに摺動することの可能な
係合部を設けたオルダム継手において、何れかの側の端
面に、軸方向に付勢力を発生させるばね手段を設けたこ
とを特徴とするオルダム継手を提供する。In view of the above object, the present invention provides an Oldham joint in which each end face is provided with a corresponding shaft and an engaging portion that can slide against each other in one direction within the plane of each end face. Provided is an Oldham joint characterized in that a spring means for generating a biasing force in the axial direction is provided on the end face of the Oldham joint.
オルダム継手の各端面の係合部と、対応する軸の係合部
とは、互いに摺動する方向に直交する横方向には殆ど隙
間は生じない寸法に構成されているが、軸方向には十分
なゆとりを持たせた寸法関係となっている。従って、オ
ルダム継手を一端側からばね手段により軸方向に押圧し
ておけば、オルダム継手の係合部と対応した軸の係合部
とがその軸方向において互いに当接し合い、従って、オ
ルダム継手が傾斜することを防止することができる。The engaging portion on each end face of the Oldham joint and the engaging portion on the corresponding shaft are configured with dimensions that create almost no gap in the lateral direction perpendicular to the mutual sliding direction, but there is no gap in the axial direction. The dimensions allow for plenty of room. Therefore, if the Oldham joint is pressed in the axial direction from one end side by the spring means, the engaging part of the Oldham joint and the engaging part of the corresponding shaft will come into contact with each other in the axial direction, so that the Oldham joint will It is possible to prevent tilting.
以下本発明を、添付図面に示す実施例に基づいて更に詳
細に説明する。第1図は本発明に係るオルダム継手を連
結すべき2つの回転軸と共に示した分解斜視図である。The present invention will be described in more detail below based on embodiments shown in the accompanying drawings. FIG. 1 is an exploded perspective view showing an Oldham joint according to the present invention together with two rotating shafts to be connected.
オルダム継手本体10の各端面には、夫々、凸状の係合
部20又は22が互いに直交する方向に設けられており
、その一方の端面(本図では下側面)の中央部には凹所
28が設けられている。この凹所28には、軸方向に付
勢力を発生させるコイルばね16を収容し、対応した回
転軸14に対して該オルダム継手本体10を反対側の回
転軸12に対して押圧することができる。本実施例にお
いては、一方の回転軸14にはオルダム継手本体10の
下側面に設けられた凸状係合部22を収容し、該凸状係
合部22の長手方向に、即ち、軸の長さ方向に対して垂
直な一方向に互いに摺動可能な溝26を形成している他
、前述のコイルばね16を一部分受容することのできる
凹所30をも形成している。他方の回転軸12は、従来
の回転軸と同様に、オルダム継手本体10の他端面上の
凸状係合部20と互いに摺動可能な溝24が形成されて
いる。該溝24の深さ寸法h2は、オルダム継手本体の
凸状係合部20の高さ寸法h1よりも浅く、従って、コ
イルばね16の付勢力作用に基づき、オルダム継手本体
10が回転軸12の方向へ押圧されると、凸状係合部2
0の上面20aは溝24の底面24aに押圧させられる
ため、オルダム継手本体は軸方向に対して傾斜すること
が防止される。即ち、このオルダム継手本体10は、コ
イルばね16の付勢力に打ち勝つだけの大きな外力が作
用しない限り傾斜することはない。On each end surface of the Oldham joint body 10, a convex engaging portion 20 or 22 is provided in a direction orthogonal to each other, and a recess is provided in the center of one end surface (lower surface in this figure). 28 are provided. This recess 28 accommodates a coil spring 16 that generates a biasing force in the axial direction, and can press the Oldham joint body 10 against the rotating shaft 12 on the opposite side with respect to the corresponding rotating shaft 14. . In this embodiment, one rotating shaft 14 accommodates a convex engaging portion 22 provided on the lower surface of the Oldham joint body 10, and extends in the longitudinal direction of the convex engaging portion 22, that is, along the shaft. In addition to forming grooves 26 that are slidable relative to each other in one direction perpendicular to the length direction, a recess 30 is also formed in which the coil spring 16 described above can be partially received. The other rotating shaft 12 is formed with a groove 24 that is slidable with respect to the convex engaging portion 20 on the other end surface of the Oldham joint body 10, similarly to the conventional rotating shaft. The depth h2 of the groove 24 is shallower than the height h1 of the convex engaging portion 20 of the Oldham joint body, and therefore, based on the biasing force of the coil spring 16, the Oldham joint body 10 is When pressed in the direction, the convex engaging portion 2
Since the upper surface 20a of the groove 24 is pressed against the bottom surface 24a of the groove 24, the Oldham joint main body is prevented from tilting in the axial direction. That is, the Oldham joint body 10 will not tilt unless a large external force is applied to overcome the biasing force of the coil spring 16.
以上の実施例においてはオルダム継手本体10に設けた
係合部は凸状の係合部であって、連結すべき回転軸12
、14の方に凹状の係合部(溝)が設けられているが
、逆に、オルダム継手本体10の方に凹状の係合部を設
け、回転軸の方に凸状の係合部を設けることは差しつか
えな(、本発明の範囲内にある。In the above embodiment, the engaging portion provided on the Oldham joint body 10 is a convex engaging portion, and the rotating shaft 12 to be connected is
, 14 is provided with a concave engaging portion (groove), but conversely, a concave engaging portion is provided toward the Oldham joint body 10, and a convex engaging portion is provided toward the rotating shaft. It is permissible to provide (within the scope of the present invention).
以上の説明から明らかな様に、本発明によれば、オルダ
ム継手と、連結されるべき回転軸との係合部を軸方向に
長く設定しなくとも、即ち、軸方向に短い寸法のオルダ
ム継手であっても、それが軸方向に対して傾斜すること
を防止することができる。従って、スペースに余裕のな
い所で使用でき、しかも回転を正確に伝達することが可
能となる。As is clear from the above description, according to the present invention, the engagement portion between the Oldham joint and the rotating shaft to be connected does not have to be set long in the axial direction, that is, the Oldham joint can be shortened in the axial direction. Even if it is, it can be prevented from being tilted with respect to the axial direction. Therefore, it can be used in places where space is limited, and rotation can be transmitted accurately.
第1図は本発明に係るオルダム継手と、回転軸とを示し
た分解斜視図。
10・・・オルダム継手本体、
12 、14・・・回転軸、 16・・・コイルば
ね、28・・・コイルばね収容用の凹所、
30・・・回転軸側のコイルばね収容用凹所。FIG. 1 is an exploded perspective view showing an Oldham joint and a rotating shaft according to the present invention. DESCRIPTION OF SYMBOLS 10... Oldham joint body, 12, 14... Rotating shaft, 16... Coil spring, 28... Recess for accommodating coil spring, 30... Recess for accommodating coil spring on rotating shaft side .
Claims (1)
に互いに摺動することの可能な係合部を設けたオルダム
継手において、何れかの側の端面に、軸方向に付勢力を
発生させるばね手段を設けたことを特徴とするオルダム
継手。1. In an Oldham joint in which each end face is provided with a corresponding shaft and an engaging part that can slide against each other in one direction within the plane of each end face, on either side of the end face, in the axial direction An Oldham joint characterized by being provided with a spring means for generating a biasing force.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1330389A JPH02195023A (en) | 1989-01-24 | 1989-01-24 | Oldham coupling |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1330389A JPH02195023A (en) | 1989-01-24 | 1989-01-24 | Oldham coupling |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH02195023A true JPH02195023A (en) | 1990-08-01 |
Family
ID=11829413
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1330389A Pending JPH02195023A (en) | 1989-01-24 | 1989-01-24 | Oldham coupling |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02195023A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7985140B2 (en) | 2008-10-03 | 2011-07-26 | Ford Global Technologies | Zero-lash Oldham coupling |
EP2963783A4 (en) * | 2013-02-28 | 2016-10-26 | Nidec Sankyo Corp | Motor device |
CN106763250A (en) * | 2016-11-29 | 2017-05-31 | 北京无线电测量研究所 | A kind of hitch bar for eliminating sideshake |
-
1989
- 1989-01-24 JP JP1330389A patent/JPH02195023A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7985140B2 (en) | 2008-10-03 | 2011-07-26 | Ford Global Technologies | Zero-lash Oldham coupling |
EP2963783A4 (en) * | 2013-02-28 | 2016-10-26 | Nidec Sankyo Corp | Motor device |
EP2963782A4 (en) * | 2013-02-28 | 2016-10-26 | Nidec Sankyo Corp | Motor device |
CN106763250A (en) * | 2016-11-29 | 2017-05-31 | 北京无线电测量研究所 | A kind of hitch bar for eliminating sideshake |
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