JPS62155335A - Leaf spring coupling - Google Patents
Leaf spring couplingInfo
- Publication number
- JPS62155335A JPS62155335A JP29476385A JP29476385A JPS62155335A JP S62155335 A JPS62155335 A JP S62155335A JP 29476385 A JP29476385 A JP 29476385A JP 29476385 A JP29476385 A JP 29476385A JP S62155335 A JPS62155335 A JP S62155335A
- Authority
- JP
- Japan
- Prior art keywords
- spring
- leaf spring
- fixing seat
- fixed
- spring 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.)
- Granted
Links
Landscapes
- Springs (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、一対のフランジを板ばねによって連結するた
めの板ばねカップリングに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a leaf spring coupling for connecting a pair of flanges with a leaf spring.
此種の板ばねカップリングは、第５図に示すように、２
軸２，４が固定されたフランジ６．８を環状の多層板ば
ね１０を介して連結し、該カップリングは捩り剛性が非
常に高いことから工作機械のサーボモータとボールねじ
部の連結として用いられているケースが多い。板ばね１
０の固定方法は、その両側に環状のばね固定座１２．１
４を配置し、片側のフランジ８のボルト挿入ガイド穴よ
り、り一マボルト１６を板ばね１０及びばね固定座１２
．１４の六に挿入し、リーマボルト１６にナツト１８を
ねじ込み締め付けることにより行われている。ばね固定
座１２．１４の形状は、第５図に示すように、リーマボ
ルト１６の軸部の外径に近い箇所で板ばね１０に接する
ように断面がわん状に形成され、板ばね１０の軸方向の
変形に対してばね固定座１２゜１４が逃げる形状となっ
ている。This type of leaf spring coupling has two parts as shown in Figure 5.
The flanges 6.8 to which the shafts 2 and 4 are fixed are connected via an annular multilayer leaf spring 10, and since this coupling has very high torsional rigidity, it is used as a connection between a servo motor and a ball screw part of a machine tool. There are many cases where Leaf spring 1
0 is fixed by using annular spring fixing seats 12.1 on both sides.
4, and insert the spring bolt 16 into the leaf spring 10 and the spring fixing seat 12 through the bolt insertion guide hole of the flange 8 on one side.
．． This is done by inserting the nut 18 into the reamer bolt 16 and tightening it. As shown in FIG. 5, the shape of the spring fixing seat 12.14 is such that the cross section is formed into a bowl shape so as to contact the leaf spring 10 at a location close to the outer diameter of the shaft portion of the reamer bolt 16, and the shape of the spring fixing seat 12.14 is round. The spring fixing seat 12° 14 is shaped to escape against deformation in the direction.
〔発明が解決しようとする問題点〕
上記ばね固定座１２，１４の形状は、−見２軸２，４の
角度誤差に対して板ばね１０に与える力を緩和するよう
に思われるがばね固定座１２．１４と、多層板ばね１０
との接触面積が小さいため、逆に、多層板ばね１０にリ
ーマボルト１６の締め付けによる集中応力を発生させて
いる。板ばね部は多層となっているため、この方法はト
ルク伝達に於ては。[Problems to be Solved by the Invention] The shape of the spring fixing seats 12 and 14 seems to alleviate the force applied to the leaf spring 10 due to the angular error of the two axes 2 and 4, but the spring fixation seat 12.14 and multilayer leaf spring 10
Since the contact area with the reamer bolt 16 is small, conversely, concentrated stress is generated in the multilayer leaf spring 10 due to the tightening of the reamer bolt 16. Since the leaf spring part has multiple layers, this method is not suitable for torque transmission.
板ばね１０に対してボルト１６のせん断力による伝達に
もなり、また、板ばね部はばね固定座と板ばねの接合は
見かけ上、フリクション（摩擦）伝達されているかに見
えるが、実際は、完全には、フリクション伝達にはなっ
ておらずリーマボルトによる直接的板ばね穴へのせん断
力により、伝達される可能性がきわめて高い。リーマボ
ルトによる直接的伝達つまり、せん断力によりトルクが
伝達される場合は、完全なるフリクション伝達、つまり
。The shear force of the bolt 16 is also transmitted to the leaf spring 10, and although it appears that friction is being transmitted between the spring fixing seat and the leaf spring, in reality, it is completely transmitted. In this case, there is no friction transmission, and it is extremely likely that the shear force is transmitted directly to the leaf spring hole by the reamer bolt. Direct transmission by reamer bolts, i.e., if the torque is transmitted by shear force, complete friction transmission, i.e.
フランジ、ばね固定座および多層板ばねが完全フリクシ
目ンによる一体化の場合に比べ。Compared to the case where the flange, spring fixing seat, and multilayer leaf spring are completely integrated with fringe.
伝達トルク捩り剛性、耐久性に関して３０〜５０％の、
性能低下を見込まなければならない。つまり、多層板ば
ねはトルク伝達において、各部材の接合上、フリクショ
ン伝達される事が望ましいことになる。上記欠陥を除去
するために、ばね固定座１２，１４の板ばね１０に対す
る接触面積を増大させても、２軸の取り付け誤差による
応力は第６図イ１口に示すように矢印部に集中し、板ば
ね１０の疲労破壊を早める可能性がある。30-50% improvement in transmission torque torsional rigidity and durability.
Deterioration in performance must be expected. In other words, when transmitting torque, it is desirable for the multilayer leaf spring to transmit friction due to the connection of each member. Even if the contact area of the spring fixing seats 12 and 14 with the leaf spring 10 is increased in order to eliminate the above-mentioned defects, the stress due to the installation error of the two axes will be concentrated at the arrow part as shown in Figure 6-1. , there is a possibility that the fatigue failure of the leaf spring 10 will be accelerated.
本発明は上記欠陥を除去することを目的とするものであ
る。The present invention aims to eliminate the above-mentioned defects.
上記目的を達成するため９本発明は一対のフランジ６．
８間に環状の板ばね２４を配置し、ボルトの締め付け力
によって、一対のフランジ６．８の複数個のボルト挿入
穴２０の周囲にばね固定座２８を介して前記板ばね２４
を固定するようにした装置において、前記ばね固定座２
８の形状を、該ばね固定座２８が前記板ばね２４に、鎖
板ばね２４の半径方向及び円周方向において、比較的幅
広の範囲内で重なり合うように設定し、一方のフランジ
６に固定される前記ばね固定座２８と他方のフランジ８
に固定される前記ばね固定座２８の、該両者の互いに隣
接する側縁ａ、ｂを。In order to achieve the above object, the present invention provides a pair of flanges6.
An annular leaf spring 24 is disposed between the flanges 6.8, and by the tightening force of the bolts, the leaf spring 24 is inserted around the plurality of bolt insertion holes 20 of the pair of flanges 6.8 through the spring fixing seats 28.
In the device for fixing the spring fixing seat 2
8 is set so that the spring fixing seat 28 overlaps the leaf spring 24 within a relatively wide range in the radial direction and circumferential direction of the chain leaf spring 24, and is fixed to one flange 6. The spring fixing seat 28 and the other flange 8
The side edges a and b of the spring fixing seat 28 which are fixed to each other are adjacent to each other.
上記両者の、フランジ６．８に対する固定部を結ぶ直線
りに対して略直角に形成し、前記ばね固定座２８の前記
板ばね２４の内径円と対向する側の縁ｄと、前記板ばね
２４の内径円との間に適宜の逃げスペースｅを形成した
ものである。The edge d of the spring fixing seat 28 on the side facing the inner diameter circle of the leaf spring 24 is formed substantially at right angles to the straight line connecting the fixing portions of the two above to the flange 6.8. An appropriate relief space e is formed between the inner diameter circle and the inner diameter circle.
一対のフランジ６．８が結合する２軸の間に軸方向変位
があると、ばね固定座２８の側縁ａ、ｂを介して板ばね
２４に応力がかかるが側縁ａ、ｂが、板ばね２４の、一
方のフランジ６に対する固定部と、他方のフランジ８に
対する固定部とを結ぶ直線りに対して略直角に形成され
、しかも、板ばね２４の半径方向に比較的長く形成され
ているので、板ばね２４に集中応力がかかることがなく
、側縁ａ。When there is an axial displacement between the two axes to which the pair of flanges 6.8 are connected, stress is applied to the leaf spring 24 through the side edges a and b of the spring fixing seat 28, but the side edges a and b It is formed approximately at right angles to the straight line connecting the fixed part of the spring 24 to the flange 6 on one side and the fixed part to the other flange 8, and is formed relatively long in the radial direction of the leaf spring 24. Therefore, no concentrated stress is applied to the leaf spring 24, and the side edge a.
ｂを介して板ばね２４に均一な応力がかかり。A uniform stress is applied to the leaf spring 24 via b.
板ばね２４の疲労を防止する。This prevents fatigue of the leaf spring 24.
以下に本発明の構成を添付図面に示す実施例を参照して
説明する。The structure of the present invention will be described below with reference to embodiments shown in the accompanying drawings.
第３図において、６，８はフランジであり、これに、１
８０度の間隔を存して、リーマボルト１６挿入用のボル
ト挿入穴２０と、互いに１８０度の間隔を存して、ナツ
ト遊嵌用の一対の逃げ穴２２が透設されている。前記一
対のフランジ６．８は互いにボルト挿入穴２０と逃げ穴
２２とが向き合うように対向配置され、それぞれのボス
部６ａ、８ａは、互いに向き合った２軸２，４に適宜な
手段によって固定されている。２４は複数板の板ばねを
重ね合わせた多層板ばねであり、該多層板ばね２４には
９０度間隔に４個の穴２６が透設され、該穴のそれぞれ
にフランジ６．８の固定軸挿入穴２０に挿入されたリー
マボルト１６の軸部が嵌挿されている。２８は多層板ば
ね２４の両側面に配置され、前記リーマボルト１６の軸
部に嵌挿されたばね固定座であり、該固定座２８はボル
ト１６とナツト１８によって板ばね２４の両側面に圧着
している。ばね固定座２８は比較的幅広な形状に形成さ
れ、板ばね２４の挿入穴２０周囲即ち、板ばね２４の固
定部の周囲に、板ばね２４の半径方向及び円周方向にお
いて１重なり合っている。In Fig. 3, 6 and 8 are flanges, and 1
A bolt insertion hole 20 for inserting the reamer bolt 16 is provided at an interval of 80 degrees, and a pair of escape holes 22 for loosely fitting a nut are provided at an interval of 180 degrees from each other. The pair of flanges 6.8 are arranged to face each other so that the bolt insertion holes 20 and escape holes 22 face each other, and the respective boss portions 6a, 8a are fixed to the two shafts 2, 4 facing each other by appropriate means. ing. Reference numeral 24 denotes a multilayer leaf spring in which a plurality of leaf springs are stacked one on top of the other. Four holes 26 are transparently formed in the multilayer leaf spring 24 at intervals of 90 degrees, and a fixed shaft of the flange 6.8 is inserted into each of the holes. The shaft portion of the reamer bolt 16 inserted into the insertion hole 20 is fitted. Reference numeral 28 designates spring fixing seats arranged on both sides of the multilayer leaf spring 24 and fitted onto the shaft portion of the reamer bolt 16. There is. The spring fixing seat 28 is formed in a relatively wide shape, and overlaps around the insertion hole 20 of the leaf spring 24, that is, around the fixing portion of the leaf spring 24 in the radial and circumferential directions of the leaf spring 24.
ニ方のフランジ６に固定される固定座２８ａと、他方の
フランジ８に固定される固定座２８ｂの、互いに隣接す
る側縁ａ、ｂを、前記穴２６の中心を結ぶ直線りに対し
て略直角に設定している。前記板ばね２４の固定部間の
中央部分には幅狭状のくびれ部分Ｓが形成されでいる。The adjacent side edges a and b of the fixed seat 28a fixed to one flange 6 and the fixed seat 28b fixed to the other flange 8 are approximately aligned with the straight line connecting the center of the hole 26. It is set at a right angle. A narrow constricted portion S is formed in the center portion between the fixed portions of the leaf spring 24.
上記した構成において、２軸２，４に第７図イに示すよ
うに軸方向変位が生じていると。In the above configuration, axial displacement occurs in the two shafts 2 and 4 as shown in FIG. 7A.
板ばね２４が変形し、この変形により、板ばね２４には
、ばね固定座２８の側縁ａ、ｂに沿って応力が生じるが
、この応力は比較的長い側縁ａ、ｂによって均一化され
、一点集中応力とはならないので、板ばね２４の疲労は
少ない。The leaf spring 24 is deformed, and this deformation generates stress in the leaf spring 24 along the side edges a, b of the spring fixing seat 28, but this stress is made uniform by the relatively long side edges a, b. , since the stress is not concentrated at one point, the fatigue of the leaf spring 24 is small.
２軸２，４に第７図口に示すような角度誤差が生じてい
ると、第１図に示す板ばね２４のばね固定座２８との境
界かとＣ部分に集中応力が生じるが、これは、第２図に
示す他の実施例シこおいて、示すようにばね固定座２８
の、板ばね２４の内径円と対向する部分に切欠部を設け
て、ばね固定座２８の、板ばね２４内径円と対向する＃
ｄと板ばね２４内径円との間に適宜面積の逃げスペース
Ｂを形成することにより解消することができる。If there is an angular error in the two axes 2 and 4 as shown in the opening in Figure 7, concentrated stress will occur at the boundary between the leaf spring 24 and the spring fixing seat 28 and the C portion shown in Figure 1. , in the other embodiment shown in FIG.
A notch is provided in a portion of the spring fixing seat 28 that faces the inner diameter circle of the leaf spring 24, and a # of the spring fixing seat 28 faces the inner diameter circle of the leaf spring 24.
This problem can be solved by forming an escape space B of an appropriate area between d and the inner diameter circle of the leaf spring 24.
尚、第４図に示すように多層板ばね２４のボルト挿入穴
にばね固定座３０の管部を挿入し、固定座３０と、管部
３０ａに固設した固定座３２とによって、多層板ばね２
４を一体的に構成しても良い、上記固定座３０の座部と
固定座３２の形状は第１図又は第２図に示す固定座２８
の形状と同一である。As shown in FIG. 4, the tube part of the spring fixing seat 30 is inserted into the bolt insertion hole of the multilayer leaf spring 24, and the multilayer leaf spring is fixed by the fixing seat 30 and the fixing seat 32 fixed to the tube part 30a. 2
The shape of the seat portion of the fixed seat 30 and the fixed seat 32 may be formed integrally with the fixed seat 28 shown in FIG. 1 or 2.
The shape is the same as that of
本発明は上述の如く、板１ｆねに接するばね固定座の形
状を比較的幅広に形成し、板ばねの一方のフランジに対
する固定部と他方のフランジに対する固定部を結ぶ直線
に対して。As described above, in the present invention, the shape of the spring fixing seat in contact with the plate 1f spring is formed to be relatively wide, with respect to the straight line connecting the fixing part for one flange of the plate spring and the fixing part for the other flange.
上記固定部に位置する固定座の互いに対向する側縁を略
直角に設定したので２軸の軸方向変位に対して板ばねに
集中応力が生じるのを防ぐことができるとともに、２軸
の角度誤差によって生じる板ばねの内径円の近傍に生じ
る集中応力を、該部分に形成した逃げスペースにより除
去することができる効果が存する。Since the opposing side edges of the fixing seats located in the fixing part are set at approximately right angles, it is possible to prevent concentrated stress from occurring in the leaf spring due to axial displacement in the two axes, and also to prevent angular errors in the two axes. There is an effect that the concentrated stress generated in the vicinity of the inner diameter circle of the leaf spring caused by this can be removed by the relief space formed in this part.
第１図は正面図、第２図は正面図、第３図は断面図、第
４図は断面図、第５図は従来案の断面図、第６図イ９口
は説明図、第７図は説明図である。
２．４・・・・軸、 ６，８・・・・フランジ。
１０・・・・板ばね、 １２，１４・・・・ばね固
定座、 １６・・・・リーマボルト、 １８・・・
・ナツト、 ２０・・・・ボルト挿入穴、 ２２・・・
・逃げ穴、 ２４・・・・板ばね、 ２６・・・・穴。
２８・・・・ばね固定座、 ３０．３２・・・・ばね
固定座
特許出願人 三木ブーり株式会社代理人弁理士
西 島 綾 雄 を第１図
第２図
廿 ｅ
第３図
第４図
（イ）
第７
（′ｒ′）
６図
（Ｄ）
図
（［：ＤFig. 1 is a front view, Fig. 2 is a front view, Fig. 3 is a sectional view, Fig. 4 is a sectional view, Fig. 5 is a sectional view of the conventional plan, Fig. 6 is an explanatory drawing, and Fig. 7 is an explanatory drawing. The figure is an explanatory diagram. 2.4...Shaft, 6,8...Flange. 10...Plate spring, 12,14...Spring fixing seat, 16...Reamer bolt, 18...
・Nut, 20... Bolt insertion hole, 22...
・Escape hole, 24... leaf spring, 26... hole. 28...Spring fixed seat, 30.32...Spring fixed seat Patent applicant Miki Bouli Co., Ltd. Agent Patent attorney
Figure 1 Figure 2 Figure 4 (a) Figure 7 ('r') Figure 6 (D) Figure ([:D
Claims (2)
配置し、ボルトの締め付け力によって、一対のフランジ
６、８の複数個のボルト挿入穴２０の周囲にばね固定座
２８を介して前記板ばね２４を固定するようにした装置
において、前記ばね固定座２８の形状を、該ばね固定座
２８が前記板ばね２４に、該板ばね２４の半径方向及び
円周方向において、比較的幅広の範囲内で重なり合うよ
うに設定し、一方のフランジ６に固定される前記ばね固
定座２８と他方のフランジ８に固定される前記ばね固定
座２８の、該両者の互いに隣接する側縁ａ、ｂを、上記
両者の、フランジ６、８に対する固定部を結ぶ直線Ｌに
対して略直角に形成したことを特徴とする板ばねカップ
リング。(1) An annular leaf spring 24 is arranged between the pair of flanges 6 and 8, and the spring fixing seats 28 are inserted around the plurality of bolt insertion holes 20 of the pair of flanges 6 and 8 by the tightening force of the bolts. In the device for fixing the leaf spring 24 by using the spring fixing seat 28, the shape of the spring fixing seat 28 is set such that the shape of the spring fixing seat 28 is relatively small in the radial direction and the circumferential direction of the leaf spring 24. Side edges a of the spring fixing seat 28 fixed to one flange 6 and the spring fixing seat 28 fixed to the other flange 8, which are set to overlap within a wide range and are adjacent to each other; A plate spring coupling characterized in that b is formed approximately at right angles to a straight line L connecting the fixing portions of the two above to the flanges 6 and 8.
配置し、ボルトの締め付け力によって、一対のフランジ
６、８の複数個のボルト挿入穴２０の周囲にばね固定座
２８を介して前記板ばね２４を固定するようにした装置
において、前記ばね固定座２８の形状を、該ばね固定座
２８が前記板ばね２４に、該板ばね２４の半径方向及び
円周方向において、比較的幅広の範囲内で重なり合うよ
うに設定し、一方のフランジ６に固定される前記ばね固
定座２８と他方のフランジ８に固定される前記ばね固定
座２８の、該両者の互いに隣接する側縁ａ、ｂを、上記
両者の、フランジ６、８に対する固定部を結ぶ直線Ｌに
対して略直角に形成し、前記ばね固定座２８の前記板ば
ね２４の内径円と対向する側の縁ｄと、前記板ばね２４
の内径円との間に適宜の逃げスペースｅを形成したこと
を特徴とする板ばねカップリング。(2) An annular leaf spring 24 is arranged between the pair of flanges 6 and 8, and the spring fixing seats 28 are inserted around the plurality of bolt insertion holes 20 of the pair of flanges 6 and 8 by the tightening force of the bolts. In the device for fixing the leaf spring 24 by using the spring fixing seat 28, the shape of the spring fixing seat 28 is set such that the shape of the spring fixing seat 28 is relatively small in the radial direction and the circumferential direction of the leaf spring 24. Side edges a of the spring fixing seat 28 fixed to one flange 6 and the spring fixing seat 28 fixed to the other flange 8, which are set to overlap within a wide range and are adjacent to each other; b is formed substantially perpendicular to the straight line L connecting the fixing parts to the flanges 6 and 8, and the edge d of the spring fixing seat 28 on the side facing the inner diameter circle of the leaf spring 24 and the Leaf spring 24
A leaf spring coupling characterized in that an appropriate escape space e is formed between the inner diameter circle and the inner diameter circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60294763A JPH0672617B2 (en) | 1985-12-27 | 1985-12-27 | Leaf spring coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60294763A JPH0672617B2 (en) | 1985-12-27 | 1985-12-27 | Leaf spring coupling |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6026139A Division JPH0768980B2 (en) | 1994-01-28 | 1994-01-28 | Leaf spring coupling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62155335A true JPS62155335A (en) | 1987-07-10 |
| JPH0672617B2 JPH0672617B2 (en) | 1994-09-14 |
Family
ID=17811981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60294763A Expired - Lifetime JPH0672617B2 (en) | 1985-12-27 | 1985-12-27 | Leaf spring coupling |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0672617B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0165931U (en) * | 1987-10-22 | 1989-04-27 | ||
| US6354950B1 (en) * | 1999-07-27 | 2002-03-12 | Atec-Weiss Gmbh & Co., Kg | Flexible shaft coupling with lamellas connected by elastic material and spaced axially from one another |
| JP4987158B1 (en) * | 2011-07-13 | 2012-07-25 | 保男 平山 | Flexible plate and leaf spring type flexible coupling using the flexible plate |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5686231A (en) * | 1979-12-15 | 1981-07-13 | Toshiba Corp | Flexible joint for railway vehicle etc. |
-
1985
- 1985-12-27 JP JP60294763A patent/JPH0672617B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5686231A (en) * | 1979-12-15 | 1981-07-13 | Toshiba Corp | Flexible joint for railway vehicle etc. |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0165931U (en) * | 1987-10-22 | 1989-04-27 | ||
| US6354950B1 (en) * | 1999-07-27 | 2002-03-12 | Atec-Weiss Gmbh & Co., Kg | Flexible shaft coupling with lamellas connected by elastic material and spaced axially from one another |
| JP4987158B1 (en) * | 2011-07-13 | 2012-07-25 | 保男 平山 | Flexible plate and leaf spring type flexible coupling using the flexible plate |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0672617B2 (en) | 1994-09-14 |
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