JP4901686B2

JP4901686B2 - Shaft coupling

Info

Publication number: JP4901686B2
Application number: JP2007266400A
Authority: JP
Inventors: 隆行酒井
Original assignee: 株式会社酒井製作所
Priority date: 2007-10-12
Filing date: 2007-10-12
Publication date: 2012-03-21
Anticipated expiration: 2027-10-12
Also published as: JP2009092225A

Description

この発明は、工作機械、ロボット、ＯＡ機器等において利用する複数枚の可撓性板状部材を備えた軸継ぎ手であって、高速回転（約３万ないし数万回転／毎分）時の軸締結部等における空気の遮断により騒音をなくした軸継ぎ手に関するものである。 The present invention relates to a shaft joint having a plurality of flexible plate-like members used in machine tools, robots, office automation equipment, etc., and a shaft at high speed rotation (about 30,000 to tens of thousands of rotations / min) The present invention relates to a shaft joint in which noise is eliminated by blocking air in a fastening portion or the like.

従来、軸継ぎ手において、軸を挿入締結するテーパーボス部を一体形成したフランジ部と、該ボス部に被嵌しボルトでフランジ部に締付けるテーパーキャップと、両フランジ部を向かい合わせて配置し、両フランジ部間に複数枚の板ばね、座金を介在させ、締付けボルトを一方のフランジ部の周縁部に設けた円孔より座金、板ばね、座金を挿通して他方のフランジ部の周縁部の螺孔に螺合して締付けて連結するものがある（特許文献１参照）。
また、軸継ぎ手において、運転時の騒音を低減するものとして、駆動軸に連結される第１の継ぎ手部材と従動軸に連結される第２の継ぎ手部材との対向面間に複数枚の金属製プレートからなる中間部材を備え、中間部材の外周面を覆うように第１の継ぎ手部材の外周面に沿って延設された壁部を設け、運転時に第１および第２の継ぎ手部材間の隙間を通る空気の流れが生じるのを抑制し、騒音を低減するようにしたものが公開されている（特許文献２参照）。 Conventionally, in a shaft joint, a flange portion in which a tapered boss portion for inserting and fastening a shaft is integrally formed, a taper cap that is fitted on the boss portion and fastened to the flange portion with a bolt, and both flange portions are disposed facing each other. A plurality of leaf springs and washers are interposed between the flanges, and tightening bolts are inserted into the washers, leaf springs, and washers through the circular holes provided on the periphery of one flange, and screwed at the periphery of the other flange. There is one that is screwed into a hole and fastened to be connected (see Patent Document 1).
Further, in the shaft joint, in order to reduce noise during operation, a plurality of metal parts are provided between opposing surfaces of the first joint member connected to the drive shaft and the second joint member connected to the driven shaft. An intermediate member comprising a plate is provided, and a wall portion extending along the outer peripheral surface of the first joint member is provided so as to cover the outer peripheral surface of the intermediate member, and a gap between the first and second joint members during operation The thing which suppressed generation | occurrence | production of the air flow which passes through, and reduced the noise is disclosed (refer patent document 2).

特許第３８３４１５９号特許公報Japanese Patent No. 3835159 特開２００４−３２４７１６号公報JP 2004-324716 A

前記特許文献１の軸継ぎ手は、スリットがハブの軸方向にフランジ部近くまで設けられ、また向かい合わせたフランジ部間の板ばねの箇所には、締付けボルトの箇所以外には空間がある。従って、両側の継ぎ手部材のボス部の軸孔と軸は、テーパーキャップをボルトで締付けることによりボス部が縮径されて軸と締結されるが、ボス部の変形等により軸孔と軸との間に約１０ミクロン前後の空気が通る隙間ができ、高速回転、例えば約３万ないし数万回転／毎分で回転する時に周囲に空気の早い流れが生じてボス部の外部より吸い込まれる空気がスリット、軸と軸孔の隙間をとおりフランジ部間、板ばねの隙間を通じて外部へ吸い出されて空気が速い速度で噴出する際に、ピュー、シューというような高い音が生じて、騒音の原因となっている。また、フランジ部の周縁部に設ける円孔と締付けボルトとの間に空洞があり、高速回転時に周囲に生ずる空気の流れにより外部から吸い込まれる空気が空洞を通じて板ばね側より外周へ高速で吸い出されるという現象が生じ、空気が狭い空洞を通り、その隙間から板ばね側に速い速度で噴出することによりピュー、シューというような高い風きり音が生じ、騒音の原因となるという問題があった。 In the shaft joint of Patent Document 1, a slit is provided to the vicinity of the flange portion in the axial direction of the hub, and there is a space in the place of the leaf spring between the facing flange portions other than the place of the tightening bolt. Therefore, the shaft hole and shaft of the boss portion of the joint member on both sides are tightened with the shaft by tightening the taper cap with the bolt, and the boss portion is reduced in diameter. There is a gap through which about 10 microns of air passes, and when air rotates at a high speed, for example, about 30,000 to several tens of thousands of revolutions per minute, a fast flow of air is generated around the air and the air sucked from outside the boss part When the air is sucked out through the slit, the gap between the shaft and the shaft hole, between the flanges and the leaf spring, and the air is ejected at a high speed, a high noise such as pew or shoe is generated, causing the noise. It has become. In addition, there is a cavity between the circular hole provided in the peripheral edge of the flange and the tightening bolt, so that air sucked in from the outside due to the flow of air generated at high speed rotation is sucked out from the leaf spring side to the outer periphery through the cavity When the air passes through a narrow cavity and is ejected from the gap to the leaf spring side at a high speed, a high wind noise such as pew or shoe is generated, which causes noise. .

前記特許文献２の軸継ぎ手は、中間部材の外周面を覆うように第１の継ぎ手部材の外周面に沿って延設された壁部を設けるので、一方の継ぎ手部材のフランジ部の外径が第２の継ぎ手部材の外径より大きくなり、両側の継ぎ手部材が同一形状にできず、また、第１の継ぎ手部材と第２の継ぎ手部材は中間部材の可撓性、弾性で動くために第１の継ぎ手部材の延設された壁部と第２の継ぎ手部材の外周との間に隙間が必要であり、高速で回転させる時周囲に生ずる空気の流れにより、その隙間より空気が外周に吸い出され急速に排出されるため高い風きり音の騒音が生じるという問題があった。
この発明は、上記問題点を解決するために、環状部材によりボス部を締付けて軸を連結する軸継ぎ手において、軸締結部における空気が通る隙間をシール材で遮断して高速回転時に騒音が生じないようにした軸継ぎ手を提供することを目的としている。また、フランジ部のボルトの締付け部における空気が通る隙間をシール部材で遮断し、騒音が生じないようにした軸継ぎ手を提供することを目的としている。 Since the shaft joint of Patent Document 2 is provided with a wall portion extending along the outer peripheral surface of the first joint member so as to cover the outer peripheral surface of the intermediate member, the outer diameter of the flange portion of one joint member is Since the outer diameter of the second joint member is larger, the joint members on both sides cannot be made the same shape, and the first joint member and the second joint member move due to the flexibility and elasticity of the intermediate member. A gap is required between the extended wall portion of the first joint member and the outer periphery of the second joint member, and air is sucked into the outer periphery from the gap due to the air flow generated around when rotating at high speed. There was a problem that a noise of high wind noise was generated because it was discharged and discharged rapidly.
In order to solve the above-described problems, in a shaft joint in which a boss portion is fastened by an annular member and a shaft is connected, a gap through which air passes in the shaft fastening portion is blocked by a sealing material, and noise is generated during high-speed rotation. The aim is to provide a shaft coupling that is not required. It is another object of the present invention to provide a shaft joint in which a gap through which air passes in a bolt tightening portion of a flange portion is blocked by a seal member so that noise is not generated.

上記目的を達成するものは、以下のものである。
（１）一端から他端まで貫通した軸連結用軸孔を備え、締付け手段で周面を締付け可能である筒状ハブ部と、前記筒状ハブ部の他端部に設けられたフランジ部とを一体に備える第１の継ぎ手本体部材と、一端から他端まで貫通した軸連結用軸孔を備え、締付け手段で周面を締付け可能である筒状ハブ部と、前記筒状ハブ部の他端部に設けられたフランジ部とを一体に備える第２の継ぎ手本体部材とを前記フランジ部が向かい合うように備え、さらに、向かい合う前記フランジ部間に介在された可撓性板状部材を前記第１の継ぎ手本体部材および前記第２の継ぎ手本体部材の各前記フランジ部に固定ボルトで締付けて連結された軸継ぎ手であって、前記第１の継ぎ手本体部材および前記第２の継ぎ手本体部材は、前記筒状ハブ部の周面に端面より前記軸連結用軸孔に到達し、前記フランジ部付近まで軸方向に延び、かつ前記フランジ部に到達しないスリットを備え、前記フランジ部は、前記締付け手段による前記ハブ部の締め付け時に締付け力が十分伝わらないものとなっており、かつ、前記第１の継ぎ手本体部材および前記第２の継ぎ手本体部材の前記フランジ部形成部位の前記軸連結用軸孔の内面には、前記軸連結用軸孔に挿入される軸と前記軸連結用軸孔の内面間を流れる空気流通を遮断する環状シール材を備え、前記軸を連結した前記軸継ぎ手の高速回転時における向かい合う前記フランジ部間にて生じる空気吸引に対して、前記軸と前記軸連結用軸孔の内面間を流れる空気流通を遮断可能である軸継ぎ手。 What achieves the above object is as follows.
(1) A cylindrical hub portion having a shaft coupling shaft hole penetrating from one end to the other end, the peripheral surface of which can be tightened by a tightening means, and a flange portion provided at the other end portion of the cylindrical hub portion; And a cylindrical hub portion having a shaft coupling shaft hole penetrating from one end to the other end, the peripheral surface of which can be tightened by a tightening means, and the cylindrical hub portion. A second joint body member integrally provided with a flange portion provided at an end portion, the flange portion facing each other, and a flexible plate-like member interposed between the facing flange portions; A shaft joint that is coupled to each flange portion of the first joint body member and the second joint body member with a fixing bolt, wherein the first joint body member and the second joint body member are: End surface on the peripheral surface of the cylindrical hub A slit that reaches the shaft coupling shaft hole, extends in the axial direction to the vicinity of the flange portion, and does not reach the flange portion, and the flange portion has a sufficient tightening force when the hub portion is tightened by the tightening means. The shaft coupling shaft hole is formed on the inner surface of the shaft coupling shaft hole of the flange portion forming portion of the first joint body member and the second joint body member. Air suction generated between the flange portions facing each other at the time of high-speed rotation of the shaft joint, which is provided with an annular seal member for blocking air flow between the inserted shaft and the inner surface of the shaft coupling shaft hole. On the other hand, a shaft joint capable of blocking air flow between the shaft and the inner surface of the shaft coupling shaft hole .

（２）前記第１および第２の継ぎ手本体部材は、前記フランジ部形成部位の前記軸連結用軸孔の内面に形成された環状凹部を備え、前記環状凹部に前記環状シール材が配置されている請求項１に記載の軸継ぎ手。
（３）前記第１および第２の継ぎ手本体部材は、前記フランジ部形成部位の前記軸連結用軸孔の内面に形成された環状凹部を備え、前記環状凹部にはハブ部側に前記環状シール材と、可撓性板状部材側に前記環状シール材を受止める環状受止め部材が配置されている請求項１に記載の軸継ぎ手。 (2) The first and second joint body members include an annular recess formed in an inner surface of the shaft coupling shaft hole in the flange portion forming portion, and the annular seal material is disposed in the annular recess. The shaft joint according to claim 1.
(3) The first and second joint main body members include an annular recess formed in an inner surface of the shaft coupling shaft hole of the flange portion forming portion, and the annular seal is provided on the hub portion side in the annular recess. The shaft coupling according to claim 1, wherein an annular receiving member that receives the annular sealing material is disposed on the material and the flexible plate-like member side.

（４）前記第１と第２の継ぎ手本体部材は、固定ボルト頭部を収納する複数の頭部収納用凹部と該各凹部に設けられたボルト操作用開口を備え、前記頭部収納用凹部内には、該頭部収納用凹部内面と前記固定ボルト頭部と接触し、前記ボルト操作用開口を介した空気の流通を遮断する環状シール部材を備えている請求項１ないし３のいずれかに記載の軸継ぎ手。
（５）前記環状シール部材は、前記頭部収納用凹部内面と前記固定ボルト頭部間により狭圧されている請求項４に記載の軸継ぎ手。
（６）前記環状シール部材は、前記頭部収納用凹部内面の角部と前記固定ボルト頭部の角部間により狭圧されている請求項４に記載の軸継ぎ手。 (4) The first and second joint body members include a plurality of head storage recesses for storing the fixing bolt heads and bolt operation openings provided in the recesses, and the head storage recesses. 4. An annular seal member that contacts the inner surface of the concave portion for storing the head portion and the head portion of the fixing bolt, and blocks air flow through the bolt operation opening. The shaft joint as described in.
(5) The shaft joint according to claim 4, wherein the annular seal member is narrowly pressed between the inner surface of the head housing recess and the head of the fixing bolt.
(6) The shaft joint according to claim 4, wherein the annular seal member is tightly pressed between a corner portion of the inner surface of the concave portion for storing the head portion and a corner portion of the fixing bolt head portion.

この発明によれば、軸継ぎ手の第１の継ぎ手本体部材と第２の継ぎ手本体部材の軸連結用軸孔には、前記フランジ形成部位の前記軸連結用軸孔の内面に環状シール材が備えられたので、軸継ぎ手に軸を締結して高速回転する時、フランジ部間、可撓性板状部材において空気の吸引が働くも、フランジ形成部位の軸連結用軸孔と軸との間を可撓性板状部材側へ空気が通るのを完全に遮断できるので、空気の吸引による風きり音の発生をなくして静かに運転することができる。 According to the present invention, the shaft coupling shaft holes of the first joint body member and the second joint body member of the shaft joint are provided with the annular seal material on the inner surface of the shaft coupling shaft hole of the flange forming portion. As a result, when the shaft is fastened to the shaft joint and rotated at a high speed, air suction works between the flange portions and the flexible plate-shaped member. Since air can be completely blocked from passing to the flexible plate-like member side, it is possible to operate quietly without generating wind noise due to air suction.

この発明によれば、軸継ぎ手の第１および第２の継ぎ手本体部材は、前記フランジ部形成部位の前記軸連結用軸孔の内面に形成された環状凹部に環状シール材を配置してあるので、前記と同様に可撓性板状部材において空気の吸引が働くも、軸連結用軸孔と軸との間を可撓性板状部材側へ空気が通るのを完全に遮断でき、軸締結部における空気の吸引現象による風きり音の発生をなくして静かに運転することができる。また、前記環状凹部に前記環状シール材の他に、環状受止め部材を備えて、環状シール材を受け止めて環状シール材を密接させ、空気が通るのを完全に遮断できる。さらに、第１の継ぎ手本体部材と第２の継ぎ手本体部材のフランジ部に設けた頭部収納用凹部内面と固定ボルト頭部との間に空気の流通を遮断するための環状シール部材を備えれば、軸継ぎ手に軸を締結して高速回転する時、フランジ部に設けた頭部収納用凹部内面と前記固定ボルト頭部との間を可撓性板状部材側へ空気が通るのを完全に遮断でき、フランジ部における空気の吸引現象による風きり音の発生をなくして静かに運転することができる。 According to this invention, the first and second joint body members of the shaft joint have the annular seal material disposed in the annular recess formed in the inner surface of the shaft connection shaft hole in the flange portion formation portion. As above, air suction works in the flexible plate-like member, but the passage of air to the flexible plate-like member side between the shaft coupling shaft hole and the shaft can be completely blocked, and the shaft is fastened. It is possible to operate quietly without generating wind noise due to the air suction phenomenon in the section. Further, in addition to the annular sealing material, the annular recess is provided with an annular receiving member, and the annular sealing material is received and brought into close contact with the annular sealing material, so that the passage of air can be completely blocked. Further, an annular seal member is provided for blocking air flow between the inner surface of the head storing recess provided on the flange portion of the first joint body member and the second joint body member and the fixing bolt head. For example, when the shaft is fastened to the shaft joint and rotated at a high speed, it is completely possible for air to pass to the side of the flexible plate member between the inner surface of the concave portion for storing the head provided in the flange portion and the head of the fixing bolt Therefore, it is possible to quietly operate without generating wind noise due to the air suction phenomenon at the flange portion.

この発明によれば、軸継ぎ手の第１の継ぎ手本体部材と第２の継ぎ手本体部材のフランジ部に設けた頭部収納用凹部内面と固定ボルト頭部との間に空気の流通を遮断するための環状シール部材を備えたので、軸継ぎ手に軸を締結して高速回転する時、フランジ部に設けた頭部収納用凹部内面と前記固定ボルト頭部との間を可撓性板状部材側へ空気が通るのを完全に遮断でき、フランジ部における空気の吸引現象による風きり音の発生をなくして静かに運転することができる。 According to this invention, the air flow is blocked between the inner surface of the recessed portion for storing the head provided on the flange portion of the first joint body member and the second joint body member of the shaft joint and the fixing bolt head. When the shaft is fastened to the shaft joint and rotated at a high speed, the flexible plate-like member side is between the inner surface of the concave portion for storing the head provided on the flange portion and the head of the fixing bolt. It is possible to completely block the passage of air, and to quietly operate without generating wind noise due to the air suction phenomenon at the flange portion.

この発明を実施するための最良の形態を図に示す。図１はこの発明の軸継ぎ手の正面図、図２は同左側面図、図３は図２のＡ−Ａ断面図、図４は図２のＢ−Ｂ断面、図５は図３の軸と軸連結用軸孔間のシール構造を示す要部拡大断面図、図６は図３の軸と軸連結用軸孔間の別のシール構造を示す要部拡大断面図、図７は図３のフランジ部の要部拡大断面図、図８は図３のＣ−Ｃ断面図、図９は図１のＤ−Ｄ断面図である。 The best mode for carrying out the invention is shown in the drawings. 1 is a front view of the shaft joint of the present invention, FIG. 2 is a left side view thereof, FIG. 3 is a cross-sectional view taken along the line AA in FIG. 2, FIG. 4 is a cross-sectional view taken along the line BB in FIG. FIG. 6 is an enlarged cross-sectional view of the main part showing a seal structure between the shaft coupling shaft holes, FIG. 6 is an enlarged cross-sectional view of the main part showing another seal structure between the shaft and the shaft connection shaft hole, and FIG. FIG. 8 is a sectional view taken along the line CC in FIG. 3, and FIG. 9 is a sectional view taken along the line DD in FIG.

図１乃至図９に示すように、この発明の軸継ぎ手は、締付け手段６で周面を締付け可能に設け、軸連結軸孔５を有するハブ部３とフランジ部４を一体に備えた第１と第２の継ぎ手本体１、２とを備え、向かい合う前記フランジ部４、４間に可撓性板状部材７を介在して継ぎ手本体部１、２のフランジ部を固定ボルト８、９で締付けて連結する構造である。 As shown in FIGS. 1 to 9, the shaft joint according to the present invention is provided with a hub portion 3 having a shaft connecting shaft hole 5 and a flange portion 4 provided integrally so that a peripheral surface can be tightened by a tightening means 6. And the second joint body 1, 2, and a flexible plate member 7 is interposed between the flange parts 4, 4 facing each other, and the flange part of the joint body part 1, 2 is tightened with fixing bolts 8, 9. Are connected to each other.

前記第１の継ぎ手本体部材の固定ボルト８は前記第２の継ぎ手本体部材側から前記可撓性板状部材７を貫通して前記第１の継ぎ手本体部材と螺合し、前記可撓性板状部材を第１の継ぎ手本体部材に固定するものであり、前記第２の継ぎ手本体部材の固定ボルト９は、前記第１の継ぎ手本体部材側から前記可撓性板状部材を貫通して前記第２の継ぎ手本体部材と螺合し、前記可撓性板状部材を第２の継ぎ手本体部材に固定するものである。
前記第１の継ぎ手本体部材１、第２の継ぎ手本体部材２、可撓性板状部材７等は、金属製である。 The fixing bolt 8 of the first joint body member penetrates the flexible plate-like member 7 from the second joint body member side and is screwed with the first joint body member. The fixing member 9 is fixed to the first joint body member, and the fixing bolt 9 of the second joint body member penetrates the flexible plate-like member from the first joint body member side, and The second joint body member is screwed to fix the flexible plate-like member to the second joint body member.
The first joint body member 1, the second joint body member 2, the flexible plate member 7 and the like are made of metal.

図３、図５および図６に示すように、この発明の軸継ぎ手は、前記した構造の軸継ぎ手であって、前記第１および第２の継ぎ手本体部材１、２は、前記フランジ部形成部位の前記軸連結用軸孔５の内面に配置され、軸１０、１１と前記軸連結用軸孔５の内面間の空気流通を遮断する環状シール材１３を備えるものである。
実施形態では、前記第１および第２の継ぎ手本体部材１、２は、前記フランジ部形成部位の前記軸連結用軸孔５の内面に形成された環状凹部１２を備え、前記環状凹部１２に前記環状シール材１３が配置されている。 As shown in FIGS. 3, 5, and 6, the shaft joint of the present invention is a shaft joint having the above-described structure, and the first and second joint body members 1, 2 are formed at the flange portion forming portion. And an annular seal member 13 for blocking air flow between the shafts 10 and 11 and the inner surface of the shaft connection shaft hole 5.
In the embodiment, each of the first and second joint body members 1 and 2 includes an annular recess 12 formed on an inner surface of the shaft connection shaft hole 5 at the flange portion forming portion, and the annular recess 12 includes the annular recess 12. An annular sealing material 13 is arranged.

前記環状凹部１２を設ける位置は、前記第１の継ぎ手本体部材１のフランジ部形成部位の前記軸連結用軸孔５の内面の内周と、第２の継ぎ手本体部材２のフランジ部形成部位の前記軸連結用軸孔５の内面の内周に設けられる。そして、前記環状シール材１３の材質は例えば、合成ゴムで形成され、弾性を有するものであり、例えば、Ｏリングを使用し、空気が漏れることがないように軸連結用軸孔に挿入される軸の周面に密接させる。 The positions where the annular recesses 12 are provided are the inner circumference of the inner surface of the shaft connection shaft hole 5 at the flange portion forming portion of the first joint body member 1 and the flange portion forming portion of the second joint body member 2. It is provided on the inner periphery of the inner surface of the shaft coupling shaft hole 5. The material of the annular sealing member 13 is made of, for example, synthetic rubber and has elasticity. For example, an O-ring is used and inserted into the shaft coupling shaft hole so that air does not leak. Close to the shaft circumference.

前記構造の軸継ぎ手によれば、締付け手段６により軸連結用軸孔５に挿入された軸１０、１１が締付けられて連結した時、ハブ部３は、締付け手段により締付けられるが、フランジ部側には締付け力が十分伝わらず、軸連結用軸孔と軸間に僅かの隙間ができるとしても、前記第１の継ぎ手本体部材１と第２の継ぎ手本体部材２のフランジ部形成部位の軸孔の内周に設けた環状凹部１２に前記環状シール材１３が密接して備えられるので、空気の流れを完全に遮断でき、従って、高速回転する時可撓性板状部材の外周において空気の吸引作用が生じても、軸連結用軸孔と軸間を空気が流れることがなく、風きり音等の騒音を生ずることがなく、静かに運転することができる。 According to the shaft joint having the above structure, when the shafts 10 and 11 inserted into the shaft coupling shaft hole 5 are tightened and connected by the tightening means 6, the hub portion 3 is tightened by the tightening means. Even if the tightening force is not sufficiently transmitted to the shaft and there is a slight gap between the shaft coupling shaft hole and the shaft, the shaft hole in the flange portion forming portion of the first joint body member 1 and the second joint body member 2 Since the annular seal member 13 is provided in close contact with the annular recess 12 provided on the inner periphery of the air, the air flow can be completely blocked, and therefore air is sucked at the outer periphery of the flexible plate member when rotating at high speed. Even if the operation occurs, air does not flow between the shaft coupling shaft hole and the shaft, and noise such as wind noise is not generated, so that the operation can be performed quietly.

図６に示す実施形態では、前記第１および第２の継ぎ手本体部材は、前記フランジ部形成部位の前記軸連結用軸孔の内面に形成された環状凹部１２を備え、前記環状凹部１２にはハブ部側に前記環状シール材１３と、可撓性板状部材側に前記環状シール材を受止める環状受止め部材１４が配置されている.
環状受止め部材１４は空気の圧力がかかる側の反対側である可撓性板状部材側に環状シール材を受止めるように配置されている。前記環状受止め部材１４として、バックアップリングを備える。該環状凹部１２はバックアップリング１４分だけ幅を広く設けて、筒状ハブ部側にＯリングを備え、かつ可撓性板状部材側にＯリングを受止めるバックアップリングが備えられる。
環状凹部１２にＯリングとバックアップリングを備えれば、Ｏリングが圧力で変形しないようにバックアップリングで受止めるので、Ｏリングと軸との密着を保持でき、確実に空気を遮断することができ、従って、第１の継ぎ手本体部材と第２の継ぎ手本体部材に軸締結して高速回転する時空気の吸引作用が生じないので、風きり音等の騒音を生ずることがなく、静かに運転することができる。 In the embodiment shown in FIG. 6, the first and second joint body members include an annular recess 12 formed on the inner surface of the shaft coupling shaft hole at the flange portion forming portion, and the annular recess 12 includes The annular seal member 13 is disposed on the hub portion side, and the annular receiving member 14 that receives the annular seal member is disposed on the flexible plate member side.
The annular receiving member 14 is disposed so as to receive the annular sealing material on the side of the flexible plate-like member that is the side opposite to the side to which air pressure is applied. A backup ring is provided as the annular receiving member 14. The annular recess 12 is wide by the backup ring 14, and is provided with an O-ring on the cylindrical hub portion side and a backup ring for receiving the O-ring on the flexible plate-like member side.
If the annular recess 12 is provided with an O-ring and a backup ring, the O-ring is received by the backup ring so that it is not deformed by pressure, so that the close contact between the O-ring and the shaft can be maintained and air can be shut off reliably. Therefore, when the shaft is fastened to the first joint main body member and the second joint main body member and rotating at high speed, no air suction action occurs, so that noise such as wind noise is not generated and the operation is performed quietly. be able to.

図１ないし図９に示す実施形態では、前記第１の継ぎ手本体部材１は、一端から他端まで貫通した軸連結用軸孔５と、テーパー状の外側面３ａと一端より他端方向に延びかつ前記軸連結用軸孔５に到達するスリット１５とを備える筒状ハブ部３と、該筒状ハブ部の他端部に設けられたフランジ部４とを一体に備えている。筒状ハブ部３には、中心を通る直径方向で、前記筒状ハブ部３は外周面３ａに端面よりフランジ部側に軸方向にテーパー面が設けられ、筒状ハブ部３の周面には端面よりフランジ部付近まで軸方向にスリット１５が設けられる。第１の継ぎ手本体部材１の筒状ハブ部３の軸連結用軸孔５は、軸１０、例えば駆動軸を連結する径とされている。
前記第２の継ぎ手本体部材２は、一端から他端まで貫通した軸連結用軸孔５と、テーパー状の外側面３ａと一端より他端方向に延びかつ前記軸連結用軸孔５に到達するスリット１５とを備える筒状ハブ部３と、該筒状ハブ部の他端部に設けられたフランジ部４とを一体に備えている。筒状ハブ部３には、中心を通る直径方向で、前記筒状ハブ部３は外周面３ａに端面よりフランジ部側に軸方向にテーパー面が設けられ、筒状ハブ部３の周面には端面よりフランジ部付近まで軸方向にスリット１５が設けられる。第１の継ぎ手本体部材１の筒状ハブ部３の軸連結用軸孔５は、軸１１、例えば従動軸を連結する径とされている。
なお、前記スリットは筒状ハブ部の両側に設けてあるが、これに限定されるものでなく、例えば端面を３等分、４等分等とした位置に設けることもできる。フランジ部に楕円形状の肉厚部を設けたが、これに限られるものではない。
前記第１の継ぎ手本体部材１、第２の継ぎ手本体部材２は、同じ大きさに設けられ、フランジ側を向かい合わせて配置される。 In the embodiment shown in FIGS. 1 to 9, the first joint body member 1 has a shaft coupling shaft hole 5 penetrating from one end to the other end, a tapered outer surface 3a, and the other end extending from the one end. And the cylindrical hub part 3 provided with the slit 15 which reaches | attains the said shaft connection shaft hole 5 and the flange part 4 provided in the other end part of this cylindrical hub part are provided integrally. The cylindrical hub portion 3 is provided with a taper surface in the axial direction on the outer peripheral surface 3a on the flange portion side from the end surface in a diametrical direction passing through the center, and on the peripheral surface of the cylindrical hub portion 3. Is provided with a slit 15 in the axial direction from the end surface to the vicinity of the flange portion. The shaft coupling shaft hole 5 of the cylindrical hub portion 3 of the first joint body member 1 has a diameter for coupling a shaft 10, for example, a drive shaft.
The second joint body member 2 has a shaft coupling shaft hole 5 penetrating from one end to the other end, a tapered outer surface 3a, extends from the one end in the other end direction, and reaches the shaft coupling shaft hole 5. The cylindrical hub part 3 provided with the slit 15 and the flange part 4 provided in the other end part of the cylindrical hub part are integrally provided. The cylindrical hub portion 3 is provided with a taper surface in the axial direction on the outer peripheral surface 3a on the flange portion side from the end surface in a diametrical direction passing through the center, and on the peripheral surface of the cylindrical hub portion 3. Is provided with a slit 15 in the axial direction from the end surface to the vicinity of the flange portion. The shaft coupling shaft hole 5 of the cylindrical hub portion 3 of the first joint body member 1 has a diameter for coupling a shaft 11, for example, a driven shaft.
In addition, although the said slit is provided in the both sides of the cylindrical hub part, it is not limited to this, For example, it can also provide in the position which made the end surface into 3 parts, 4 parts, etc. Although the elliptical thick portion is provided in the flange portion, the present invention is not limited to this.
The first joint main body member 1 and the second joint main body member 2 are provided in the same size and are arranged with the flange sides facing each other.

前記締付け手段６は、実施形態では、締付用環状部材１６、１７と締付ボルト１８とにより筒状ハブ部３を締付ける構造としてある。
前記締付用環状部材１６、１７は、テーパー状の内側面を有する貫通孔１９と複数のボルト孔２０とを備え、該貫通孔１９が前記継ぎ手本体部材１、２の前記筒状ハブ部３の前記テーパー状の外側面部分を被嵌するように前記継ぎ手本体部材に取り付けられるものである。
前記締付ボルト１８は、前記締付用環状部材１６、１７の前記ボルト孔２０に装着され、先端部が前記継ぎ手本体部材と螺合し、前記締付用環状部材の前記継ぎ手本体部材への締付けを行うためのものである。 In the embodiment, the tightening means 6 has a structure in which the tubular hub portion 3 is tightened by the tightening annular members 16 and 17 and the tightening bolt 18.
The fastening annular members 16, 17 include a through hole 19 having a tapered inner surface and a plurality of bolt holes 20, and the through hole 19 is the tubular hub portion 3 of the joint body members 1, 2. Is attached to the joint body member so as to fit the tapered outer surface portion.
The tightening bolt 18 is mounted in the bolt hole 20 of the tightening annular members 16, 17, and a tip portion is screwed with the joint main body member, so that the tightening annular member is connected to the joint main body member. This is for tightening.

実施形態の前記締付用環状部材１６、１７は、円形の板体で、テーパー状の内側面を有する貫通孔１９と複数のボルト孔２０とを備え、該貫通孔１９が前記継ぎ手本体部材１、２の前記筒状ハブ部３の前記テーパー状の外側面部分を被嵌するように前記継ぎ手本体部材に取り付けられている。
前記締付用環状部材１６、１７の中心の貫通孔１９は、前記筒状ハブ部の外周面に被嵌できる内径を有し、その内周面には、前記第１の継ぎ手本体部材１の筒状ハブ部３と、第２の継ぎ手本体部材２の筒状ハブ部３のテーパー面に当接させるテーパー面が設けられる。前記ボルト孔２０は、円形の板体の同一円周上の４箇所に等間隔に設けられている。このボルト孔と、ボルトの間隔、個数はこれに限られるものではない。 The fastening annular members 16 and 17 of the embodiment are circular plate bodies, and include a through hole 19 having a tapered inner surface and a plurality of bolt holes 20, and the through hole 19 is the joint body member 1. 2 and 2 are attached to the joint body member so as to fit the tapered outer surface portion of the cylindrical hub portion 3.
A through hole 19 at the center of the fastening annular members 16, 17 has an inner diameter that can be fitted on the outer peripheral surface of the cylindrical hub portion, and the inner peripheral surface thereof has the inner diameter of the first joint body member 1. The cylindrical hub part 3 and the taper surface which contact | abuts to the taper surface of the cylindrical hub part 3 of the 2nd joint main body member 2 are provided. The bolt holes 20 are provided at equal intervals at four locations on the same circumference of a circular plate. The distance between the bolt holes and the bolts and the number of bolts are not limited thereto.

前記締付ボルト１８は、前記締付用環状部材１６、１７をフランジ部４に締付けるためのものである。前記フランジ部４には、前記ハブ部３の外周より外側で、周面のほぼ中間位置に締付ボルト１８を螺合する螺孔２１が設けられ、締付ボルト１８が前記締付用環状部材１６、１７のボルト孔２０に挿入され、螺孔２１に螺合される。該締付ボルト１８をフランジ部４に締付けることにより、前記締付用環状部材１６、１７がフランジ部４に近づけられるとともに締付用環状部材１６、１７のテーパー面がハブ部３のテーパー面を押し込みハブ部が半径方向に縮径されて周囲より前記軸連結用軸孔５に挿入された軸１０、１１が締付けられる。 The fastening bolt 18 is for fastening the fastening annular members 16, 17 to the flange portion 4. The flange portion 4 is provided with a screw hole 21 for screwing the tightening bolt 18 outside the outer periphery of the hub portion 3 at a substantially intermediate position on the peripheral surface, and the tightening bolt 18 is the annular member for tightening. 16 and 17 are inserted into the bolt holes 20 and screwed into the screw holes 21. By tightening the tightening bolt 18 to the flange portion 4, the tightening annular members 16, 17 are brought close to the flange portion 4, and the tapered surfaces of the tightening annular members 16, 17 become the tapered surface of the hub portion 3. The pushing hub portion is radially reduced in diameter, and the shafts 10 and 11 inserted into the shaft connecting shaft hole 5 from the periphery are tightened.

前記第１の継ぎ手本体部材１と第２の継ぎ手本体部材２は、フランジ側を向かい合わせて配置され、そのフランジ部間に１又は複数枚の可撓性板状部材７が配設される。
前記可撓性板状部材７は板ばねを１枚のもの、或いは複数枚重ねたものである。板ばねは四角形で、中央に軸孔５の径より大きい径の穴が設けられたものであり、四隅には固定ボルトを挿通するための１又は２個の貫通孔２２が設けられている。板ばねの直径は、前記フランジ部の外径とほぼ同じ、或いは若干小さく設け、各角部の頂点が上下と左右に位置するように配置される。そして、ボルト頭部と板ばねとの間および板ばねとフランジ部との間には座金２３が備えられている。前記板ばねは四角形で中央に穴を設けた場合を示したが、これに限られるものでなく、円形等で中央に穴を設けたものでもよい。 The first joint body member 1 and the second joint body member 2 are arranged with the flange sides facing each other, and one or a plurality of flexible plate-like members 7 are disposed between the flange portions.
The flexible plate-like member 7 is a single plate spring or a plurality of stacked plate springs. The leaf spring is square and has a hole having a diameter larger than the diameter of the shaft hole 5 at the center, and one or two through holes 22 for inserting fixing bolts are provided at the four corners. The leaf spring has a diameter that is substantially the same as or slightly smaller than the outer diameter of the flange portion, and is arranged so that the apex of each corner portion is positioned vertically and horizontally. A washer 23 is provided between the bolt head and the leaf spring and between the leaf spring and the flange portion. The leaf spring has a quadrangular shape and a hole is provided in the center, but is not limited thereto, and may be a circular shape or the like provided with a hole in the center.

第１の継ぎ手本体部材１には、フランジ部４の上下には中心線の対称位置に第２の継ぎ手本体部材用固定ボルト９のボルト操作用開口２５が設けられ、かつ左右には中心線の対称位置に第１の継ぎ手本体部材用固定ボルト８の螺孔２６が設けられている。
第２の継ぎ手本体部材１には、フランジ部４の上下には中心線の対称位置に第１の継ぎ手本体部材用固定ボルト８の螺孔２６が設けられ、かつ左右には中心線の対称位置に第２の継ぎ手本体部材用固定ボルト９のボルト操作用開口２５が設けられている。
前記操作用開口２５は、前記固定ボルト８、９の頭部８ａ、９ａの６角形の穴８ｂ、９ｂにスパナ等治具を入れるための穴であり、第１の継ぎ手本体部材１および第２の継ぎ手本体部材２のフランジ部４に設けられる頭部収納用凹部２８の中心に設けられている。
前記操作用開口２５は、固定ボルトの外径より小さい径としてあり、フランジ部４は固定ボルトの頭部の前面を覆うように設けられている。
また、第１の継ぎ手本体部材１のフランジ部４には側面に縦方向に楕円形状の肉厚部２７が形成され、第２の継ぎ手本体部材２のフランジ部４には側面に横方向に楕円形状の肉厚部２７が形成されている。 The first joint body member 1 is provided with a bolt operation opening 25 of the second joint body member fixing bolt 9 at a position symmetrical to the center line above and below the flange portion 4, and on the left and right sides of the center line. A screw hole 26 of the first joint body member fixing bolt 8 is provided at a symmetrical position.
The second joint body member 1 is provided with a screw hole 26 of the first joint body member fixing bolt 8 at a position symmetrical with respect to the center line above and below the flange portion 4 and at a position symmetrical with respect to the center line on the left and right. Are provided with bolt operation openings 25 of the second joint body member fixing bolt 9.
The operation opening 25 is a hole for inserting a jig such as a spanner in the hexagonal holes 8b, 9b of the heads 8a, 9a of the fixing bolts 8, 9, and the first joint body member 1 and the second Is provided in the center of the head storing recess 28 provided in the flange portion 4 of the joint body member 2.
The operation opening 25 has a diameter smaller than the outer diameter of the fixing bolt, and the flange portion 4 is provided so as to cover the front surface of the head of the fixing bolt.
The flange portion 4 of the first joint body member 1 is formed with an elliptical thick portion 27 in the vertical direction on the side surface, and the flange portion 4 of the second joint body member 2 is elliptical in the lateral direction on the side surface. A thick portion 27 having a shape is formed.

図３、図７および図８に示すように、この発明は、前記した構成の軸継ぎ手において、前記第１の継ぎ手本体部材１は、前記第２の継ぎ手本体部材用固定ボルト頭部９ａを収納する複数の頭部収納用凹部２８と該各凹部に設けられたボルト操作用開口２５を備え、前記第２の継ぎ手本体部材２は、前記第１の継ぎ手本体部材用固定ボルト頭部８ａを収納する複数の頭部収納用凹部２８と該各凹部に設けられたボルト操作用開口２５とを備え、さらに、前記頭部収納用凹部２８内には、該頭部収納用凹部内面と前記固定ボルト頭部と接触し、前記ボルト操作用開口を介した空気の流通を遮断する環状シール部材２９を備える。
フランジ部４には、頭部収納用凹部２８の中心に固定ボルトの外径より小さい径のボルト操作用開口２５が設けられているので、固定ボルト８、９の頭部の前面周囲はフランジ部４の覆い部３０で覆われている。 As shown in FIG. 3, FIG. 7, and FIG. 8, in the shaft joint having the above-described configuration, the first joint main body member 1 accommodates the second joint main body member fixing bolt head 9a. A plurality of head storing recesses 28 and bolt operation openings 25 provided in the respective recesses, and the second joint body member 2 stores the first joint body member fixing bolt head 8a. A plurality of head storage recesses 28 and bolt operation openings 25 provided in the respective recesses, and further, in the head storage recess 28, the head storage recess inner surface and the fixing bolt An annular seal member 29 is provided that contacts the head and blocks air flow through the bolt operation opening.
Since the flange portion 4 is provided with a bolt operation opening 25 having a diameter smaller than the outer diameter of the fixing bolt at the center of the head storing recess 28, the periphery of the front surface of the head of the fixing bolts 8 and 9 is the flange portion. 4 covering portions 30.

前記環状シール部材２９は、前記頭部収納用凹部２８の内面２８ａと前記固定ボルト頭部８ａ、９ａ間により狭圧されている。
前記環状シール部材２９は、前記頭部収納用凹部２８の内面２８ａの角部と前記固定ボルト頭部８ａ、９ａの角部間により狭圧されている。
前記環状シール部材２９は、弾性もしくは可撓性材料により形成されている。例えば、合成ゴムで形成される。 The annular seal member 29 is tightly pressed between the inner surface 28a of the head storing recess 28 and the fixing bolt heads 8a, 9a.
The annular seal member 29 is tightly pressed between the corners of the inner surface 28a of the head storing recess 28 and the corners of the fixing bolt heads 8a and 9a.
The annular seal member 29 is made of an elastic or flexible material. For example, it is made of synthetic rubber.

前記第１の継ぎ手本体部材１と第２の継ぎ手本体部材２のフランジ部４の前記凹部２８の内面の隅角部と前記ボルト頭部８ａ、９ａとの間に弾性を有する前記環状シール部材２９が備えられている。前記環状シール部材２９は、ボルト頭部の周囲の径とほぼ同じ径としたＯリングを使用している。前記環状受止め部材１４の材質は、弾性もしくは可撓性材料により形成されている。例えば、合成ゴムで形成される。例えば、Ｏリングを使用する。このＯリングは弾性を有し、空気が漏れることがないように凹部２８の内面２８ａの隅角部と、固定ボルトの頭部の周囲の縁部との間に挟持させて密接させる。Ｏリングはフランジ部４の覆い部３０と固定ボルトの頭部８ａ、９ａの先端面との間に挟持するのが好ましい。
前記ボルト操作用開口２５は固定ボルトの頭部に設ける六角孔に先端部が六角のスパナ（図示せず）を挿入して固定ボルトを締付けるものである。 The annular seal member 29 having elasticity between the corners of the inner surface of the recess 28 of the flange portion 4 of the first joint body member 1 and the second joint body member 2 and the bolt heads 8a and 9a. Is provided. The annular seal member 29 uses an O-ring having a diameter substantially the same as the diameter around the bolt head. The material of the annular receiving member 14 is formed of an elastic or flexible material. For example, it is made of synthetic rubber. For example, an O-ring is used. The O-ring has elasticity, and is sandwiched between the corner of the inner surface 28a of the recess 28 and the edge around the head of the fixing bolt so as not to leak air. The O-ring is preferably sandwiched between the cover portion 30 of the flange portion 4 and the tip surfaces of the heads 8a and 9a of the fixing bolt.
The bolt operation opening 25 is for inserting a hexagonal spanner (not shown) into a hexagon hole provided in the head of the fixing bolt and tightening the fixing bolt.

固定ボルトを前記いずれか一方の継ぎ手本体部材のフランジ部４の周面の複数箇所と前記可撓性板状部材７の貫通孔２２を通じて他方の継ぎ手本体部材のフランジ部４の螺孔２６にねじ込んで締結するものである。
前記凹部２８の隅角部と前記締付けボルトの頭部との間の隙間に空気の流通を遮断するための環状シール部材２９が備えられたので、固定ボルトをフランジ部４に締付け時、シール部材２９が固定ボルトの頭部の周囲の縁部に密接され、締付けボルトの頭部とフランジ部の凹部との間の空気の流れを完全に遮断できる。
従って、第１の継ぎ手本体部材と第２の継ぎ手本体部材に軸締結して高速回転する時、フランジ部に設けた頭部収納用凹部内面と前記固定ボルト頭部との間を可撓性板状部材側へ空気が通るのを完全に遮断でき、フランジ部における空気の吸引現象による風きり音の発生をなくして静かに運転することができる。 The fixing bolt is screwed into the screw holes 26 of the flange portion 4 of the other joint body member through a plurality of locations on the peripheral surface of the flange portion 4 of the one joint body member and the through holes 22 of the flexible plate member 7. To conclude with.
Since the annular seal member 29 for blocking the air flow is provided in the gap between the corner portion of the recess 28 and the head of the tightening bolt, the seal member is used when the fixing bolt is tightened to the flange portion 4. 29 is brought into close contact with the peripheral edge of the head of the fixing bolt, and air flow between the head of the tightening bolt and the recess of the flange portion can be completely blocked.
Accordingly, when the first joint body member and the second joint body member are fastened with a shaft and rotated at a high speed, a flexible plate is provided between the inner surface of the concave portion for storing the head portion provided on the flange portion and the fixing bolt head portion. It is possible to completely block the passage of air to the side of the member, and to quietly operate without generating wind noise due to the air suction phenomenon at the flange portion.

この発明の軸継ぎ手は、前記締付け手段で周面を締付け可能に設け、軸連結軸孔５を有するハブ部３とフランジ部４を一体に備えた第１と第２の継ぎ手本体１、２とを備え、向かい合う前記フランジ部４、４間に可撓性板状部材７を介在してフランジ部を固定ボルト８、９で締付けて連結する軸継ぎ手であって、
前記第１の継ぎ手本体部材１は、前記第２の継ぎ手本体部材用固定ボルト頭部を収納する複数の頭部収納用凹部２８と該各凹部に設けられたボルト操作用開口２５を備え、前記第２の継ぎ手本体部材は、前記第１の継ぎ手本体部材用固定ボルト頭部を収納する複数の頭部収納用凹部２８と該各凹部に設けられたボルト操作用開口２５とを備え、さらに、前記頭部収納用凹部内には、該頭部収納用凹部内面と前記固定ボルト頭部と接触し、前記ボルト操作用開口を介した空気の流通を遮断する環状シール部材２９を備える。 The shaft joint of the present invention is provided with first and second joint bodies 1 and 2 which are provided with a hub portion 3 having a shaft connecting shaft hole 5 and a flange portion 4 so as to be capable of tightening a peripheral surface by the tightening means. Comprising a flexible plate-like member 7 between the flange portions 4 and 4 facing each other, and fastening the flange portions with fixing bolts 8 and 9 to connect them,
The first joint body member 1 includes a plurality of head housing recesses 28 for housing the second joint body member fixing bolt heads, and bolt operation openings 25 provided in the recesses, The second joint body member includes a plurality of head housing recesses 28 for housing the first joint body member fixing bolt heads, and a bolt operation opening 25 provided in each recess, An annular seal member 29 that contacts the inner surface of the head storing recess and the fixing bolt head and blocks air flow through the bolt operation opening is provided in the head storing recess.

前記環状シール部材２９は、前記頭部収納用凹部内面と前記固定ボルト頭部間により狭圧されている。また、前記環状シール部材２９は、前記頭部収納用凹部内面の角部と前記固定ボルト頭部の角部間により狭圧されている。 The annular seal member 29 is tightly pressed between the inner surface of the head housing recess and the head of the fixing bolt. The annular seal member 29 is tightly pressed between the corner of the inner surface of the concave portion for storing the head and the corner of the head of the fixing bolt.

この発明によれば、第１の継ぎ手本体部材と第２の継ぎ手本体部材のフランジ部に設けた頭部収納用凹部内面と前記固定ボルト頭部との間に前記ボルト操作用開口を介した空気の流通を遮断するための環状シール部材が備えられたので、第１の継ぎ手本体部材と第２の継ぎ手本体部材に軸締結して高速回転する時、フランジ部に設けた頭部収納用凹部内面と前記固定ボルト頭部との間を空気が通るのを完全に遮断でき、第１の継ぎ手本体部材と第２の継ぎ手本体部材に軸締結して高速回転する時、空気の吸引現象によるフランジ部の締付け部における風きり音の発生をなくして静かに運転することができる。 According to this invention, the air via the bolt operation opening is provided between the inner surface of the head storing recess provided in the flange portion of the first joint body member and the second joint body member and the fixing bolt head. Since the annular seal member for blocking the circulation of the head is provided, the inner surface of the concave portion for storing the head portion provided on the flange portion when the shaft is fastened to the first joint body member and the second joint body member to rotate at high speed. And the fixing bolt head can completely block the passage of air, and when the shaft is fastened to the first joint body member and the second joint body member to rotate at high speed, the flange portion due to the air suction phenomenon It is possible to operate quietly without generating wind noise at the tightening portion.

この発明は上記実施形態に限定されるものではなく、この発明の要旨を逸脱しない範囲で、種々の形態を実施しうるものである。実施形態では、前記締付用環状部材は円形の板体で、フランジ部の締付けボルトで締付け筒状ハブ部を縮径して軸締結する場合を示したが、これに限るものではなく、筒状ハブ部に被嵌するキャップ状部材とし、内周面にテーパー面を構成し、周面に複数のボルト孔を設け、締付けボルトでフランジ部に締付け、軸締結するようにしたものでもよい。 The present invention is not limited to the above embodiment, and various forms can be implemented without departing from the gist of the present invention. In the embodiment, the case where the fastening annular member is a circular plate and the fastening cylindrical hub portion is reduced in diameter with the fastening bolt of the flange portion and the shaft is fastened is shown, but the present invention is not limited to this. It may be a cap-shaped member that fits in the hub portion, has a tapered surface on the inner peripheral surface, has a plurality of bolt holes on the peripheral surface, is tightened to the flange portion with a tightening bolt, and is axially fastened.

図１はこの発明の軸継ぎ手の正面図である。FIG. 1 is a front view of a shaft joint according to the present invention. 図２は同左側面図である。FIG. 2 is a left side view of the same. 図３は図２のＡ−Ａ断面図である。3 is a cross-sectional view taken along the line AA in FIG. 図４は図２のＢ−Ｂ断面図である。4 is a cross-sectional view taken along the line BB in FIG. 図５は図３の軸と軸連結用軸孔間のシール構造を示す要部拡大断面図である。FIG. 5 is an enlarged cross-sectional view of a main part showing a seal structure between the shaft of FIG. 3 and the shaft coupling shaft hole. 図６は図３の軸と軸連結用軸孔間の別のシール構造を示す要部拡大断面図である。6 is an enlarged cross-sectional view of a main part showing another seal structure between the shaft of FIG. 3 and the shaft coupling shaft hole. 図７は図３のフランジ部の要部拡大断面図である。FIG. 7 is an enlarged cross-sectional view of a main part of the flange portion of FIG. 図８は図３のＣ−Ｃ断面図である。8 is a cross-sectional view taken along the line CC of FIG. 図９は図１のＤ−Ｄ断面図である。9 is a cross-sectional view taken along the line DD of FIG.

符号の説明Explanation of symbols

１軸継ぎ手本体部材
２軸継ぎ手本体部材
３筒状ハブ部
４フランジ部
５軸連結用軸孔
６締付け手段
７可撓性板状部材
８固定ボルト
９固定ボルト
１０軸
１１軸
１２環状凹部
１３環状シール材
１４環状受止め部材
１５スリット
１６締付用環状部材
１７締付用環状部材
１８締付ボルト
１９貫通孔
２０ボルト孔
２１螺孔
２２貫通孔
２５ボルト操作用開口
２６螺孔
２８頭部収納用凹部
２９環状シール部材 DESCRIPTION OF SYMBOLS 1 Shaft joint main body member 2 Shaft joint main body member 3 Cylindrical hub part 4 Flange part 5 Shaft hole for shaft connection 6 Tightening means 7 Flexible plate-shaped member 8 Fixing bolt 9 Fixing bolt 10 Axis 11 Axis 12 Annular recess 13 Annular seal Material 14 Annular Receiving Member 15 Slit 16 Tightening Ring Member 17 Tightening Ring Member 18 Tightening Bolt 19 Through Hole 20 Bolt Hole
DESCRIPTION OF SYMBOLS 21 Screw hole 22 Through-hole 25 Bolt operation opening 26 Screw hole 28 Head storage recessed part 29 Annular seal member

Claims

一端から他端まで貫通した軸連結用軸孔を備え、締付け手段で周面を締付け可能である筒状ハブ部と、前記筒状ハブ部の他端部に設けられたフランジ部とを一体に備える第１の継ぎ手本体部材と、一端から他端まで貫通した軸連結用軸孔を備え、締付け手段で周面を締付け可能である筒状ハブ部と、前記筒状ハブ部の他端部に設けられたフランジ部とを一体に備える第２の継ぎ手本体部材とを前記フランジ部が向かい合うように備え、さらに、向かい合う前記フランジ部間に介在された可撓性板状部材を前記第１の継ぎ手本体部材および前記第２の継ぎ手本体部材の各前記フランジ部に固定ボルトで締付けて連結された軸継ぎ手であって、
前記第１の継ぎ手本体部材および前記第２の継ぎ手本体部材は、前記筒状ハブ部の周面に端面より前記軸連結用軸孔に到達し、前記フランジ部付近まで軸方向に延び、かつ前記フランジ部に到達しないスリットを備え、前記フランジ部は、前記締付け手段による前記ハブ部の締め付け時に締付け力が十分伝わらないものとなっており、かつ、前記第１の継ぎ手本体部材および前記第２の継ぎ手本体部材の前記フランジ部形成部位の前記軸連結用軸孔の内面には、前記軸連結用軸孔に挿入される軸と前記軸連結用軸孔の内面間を流れる空気流通を遮断する環状シール材を備え、前記軸を連結した前記軸継ぎ手の高速回転時における向かい合う前記フランジ部間にて生じる空気吸引に対して、前記軸と前記軸連結用軸孔の内面間を流れる空気流通を遮断可能であることを特徴とする軸継ぎ手。 A cylindrical hub portion provided with a shaft coupling shaft hole penetrating from one end to the other end, the peripheral surface of which can be tightened by a tightening means, and a flange portion provided at the other end of the cylindrical hub portion are integrated. A first coupling body member, a shaft coupling shaft hole penetrating from one end to the other end, a cylindrical hub portion whose peripheral surface can be tightened by a tightening means, and the other end portion of the cylindrical hub portion A second joint body member integrally provided with the provided flange portion so that the flange portion faces each other; and a flexible plate member interposed between the flange portions facing each other. A shaft joint that is connected to each flange portion of the main body member and the second joint main body member by fastening with a fixing bolt,
The first joint body member and the second joint body member reach the shaft coupling shaft hole from the end surface to the peripheral surface of the cylindrical hub portion, extend in the axial direction to the vicinity of the flange portion, and A slit that does not reach the flange portion is provided, and the flange portion does not sufficiently transmit a tightening force when the hub portion is tightened by the tightening means, and the first joint body member and the second joint member An inner surface of the shaft coupling shaft hole in the flange portion forming portion of the joint body member is an annular member that blocks air flow between the shaft inserted into the shaft coupling shaft hole and the inner surface of the shaft coupling shaft hole. Air flow that flows between the shaft and the inner surface of the shaft coupling shaft hole against air suction that occurs between the flange portions facing each other at the time of high-speed rotation of the shaft joint that includes the seal material and that connects the shaft Shaft coupling which is a possible blocking.

前記第１および第２の継ぎ手本体部材は、前記フランジ部形成部位の前記軸連結用軸孔の内面に形成された環状凹部を備え、前記環状凹部に前記環状シール材が配置されている請求項１に記載の軸継ぎ手。 The said 1st and 2nd joint main body member is equipped with the annular recessed part formed in the inner surface of the said shaft connection shaft hole of the said flange part formation site | part, The said annular sealing material is arrange | positioned at the said annular recessed part. The shaft joint according to 1.

前記第１および第２の継ぎ手本体部材は、前記フランジ部形成部位の前記軸連結用軸孔の内面に形成された環状凹部を備え、前記環状凹部にはハブ部側に前記環状シール材と、可撓性板状部材側に前記環状シール材を受止める環状受止め部材が配置されている請求項１に記載の軸継ぎ手。 The first and second joint body members include an annular recess formed in an inner surface of the shaft coupling shaft hole of the flange portion forming portion, and the annular recess is provided on the hub portion side in the annular recess. The shaft joint according to claim 1, wherein an annular receiving member that receives the annular sealing material is disposed on the flexible plate-like member side.

前記第１と第２の継ぎ手本体部材は、固定ボルト頭部を収納する複数の頭部収納用凹部と該各凹部に設けられたボルト操作用開口を備え、前記頭部収納用凹部内には、該頭部収納用凹部内面と前記固定ボルト頭部と接触し、前記ボルト操作用開口を介した空気の流通を遮断する環状シール部材を備えている請求項１ないし３のいずれかに記載の軸継ぎ手。 The first and second joint body members include a plurality of head storing recesses for storing the fixing bolt heads and bolt operation openings provided in the respective recesses, and in the head storing recesses 4. An annular seal member that contacts the inner surface of the concave portion for storing the head portion and the head portion of the fixing bolt and that blocks air flow through the bolt operation opening. Shaft coupling.

前記環状シール部材は、前記頭部収納用凹部内面と前記固定ボルト頭部間により狭圧されている請求項４に記載の軸継ぎ手。 The shaft joint according to claim 4, wherein the annular seal member is tightly pressed between the inner surface of the head housing recess and the fixing bolt head.

前記環状シール部材は、前記頭部収納用凹部内面の角部と前記固定ボルト頭部の角部間により狭圧されている請求項４に記載の軸継ぎ手。 5. The shaft joint according to claim 4, wherein the annular seal member is narrowly pressed between a corner portion of the inner surface of the head storing recess and a corner portion of the fixing bolt head portion.