JP2008275083A - Gear coupling - Google Patents

Gear coupling Download PDF

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JP2008275083A
JP2008275083A JP2007120010A JP2007120010A JP2008275083A JP 2008275083 A JP2008275083 A JP 2008275083A JP 2007120010 A JP2007120010 A JP 2007120010A JP 2007120010 A JP2007120010 A JP 2007120010A JP 2008275083 A JP2008275083 A JP 2008275083A
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lubricant
outer cylinder
gear
supply
gear coupling
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JP5157237B2 (en
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Yasuo Yokoyama
康雄 横山
Wataru Maeda
亘 前田
Takashi Nishimura
隆 西村
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JFE Steel Corp
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JFE Steel Corp
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    • 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
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/18—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts the coupling parts (1) having slidably-interengaging teeth
    • F16D3/185—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts the coupling parts (1) having slidably-interengaging teeth radial teeth connecting concentric inner and outer coupling parts
    • 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
    • F16D2300/00—Special features for couplings or clutches
    • F16D2300/06—Lubrication details not provided for in group F16D13/74

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a novel gear coupling capable of certainly discharging old lubricant and exchanging (replacing) with new lubricant when lubricant filled between an inner cylinder and an outer cylinder is exchanged. <P>SOLUTION: A plurality of grease supply/discharge holes 23 is formed in the outer cylinder 20 coupled to one rotating shaft so that the holes are penetrated through the outer cylinder toward the side of the inner cylinder 10 coupled to the other rotating shaft, one grease supply/discharge hole 23 of the grease supply/discharge holes is formed in the vicinity of a meshing portion between inner and outer gears 11, 21, and also the other grease supply/discharge hole 23 is formed in the other portion across the meshing portion. Thereby, when the lubricant filled between the inner cylinder 10 and the outer cylinder 20 is exchanged, the new lubricant is passed through the meshing portions. Therefore, the old lubricant is certainly discharged and exchanged (replaced) with the new lubricant. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、一対の回転軸同士を同軸上に連結するための軸継手に係り、特に一方の回転軸に設けられた内筒と他方の回転軸に設けられた外筒間を内外歯車で噛み合わせた歯車式軸継手であるギアカップリングに関するものである。   The present invention relates to a shaft coupling for coaxially connecting a pair of rotating shafts, and in particular, an inner cylinder provided on one rotating shaft and an outer cylinder provided on the other rotating shaft are meshed by an inner / outer gear. The present invention relates to a gear coupling which is a combined gear type shaft coupling.

従来、各種プラントや機械装置の動力伝達系に適用されるための軸継手の１つとして、ギアカップリングと称される歯車式軸継手（以下「ギアカップリング」と称す）が多用されている。
このギアカップリングは、例えば図１１および図１２に示すように一方の回転軸Ｓ１の端部に固定された内筒１０と、他方の回転軸Ｓ２の端部に連結する外筒２０とを互いに嵌め合わせると共に、その内筒１０の外周面に設けられた外歯車１１と外筒２０の内周面に設けられた内歯車２１とを噛み合わせてなるものであり、一方の回転軸Ｓ１（Ｓ２）の動力（回転力）がこれら内筒１０と両歯車１１，２１と外筒２０を介して他方の回転軸Ｓ２（Ｓ１）側に伝達する構造となっている。 Conventionally, a gear-type shaft coupling (hereinafter referred to as “gear coupling”) called a gear coupling has been widely used as one of shaft couplings to be applied to power transmission systems of various plants and mechanical devices. .
For example, as shown in FIGS. 11 and 12, the gear coupling includes an inner cylinder 10 fixed to the end of one rotating shaft S1 and an outer cylinder 20 connected to the end of the other rotating shaft S2. The external gear 11 provided on the outer peripheral surface of the inner cylinder 10 and the internal gear 21 provided on the inner peripheral surface of the outer cylinder 20 are meshed with each other, and one of the rotation shafts S1 (S2) is engaged. ) Power (rotational force) is transmitted to the other rotating shaft S2 (S1) side through the inner cylinder 10, both gears 11 and 21, and the outer cylinder 20.

そして、このような内外歯車１１，２１を介して動力を伝達するギアカップリングでは、その外筒２０のフランジ２２などにこれを貫通するように一対の給排脂孔２３，２３が形成されており、この給排脂孔２３，２３からその内筒１０と外筒２０間にグリースなどの潤滑剤を充填することで特に大きな力が加わる歯車１１，２１表面の摩耗や腐食、発熱などを抑制するようになっている。   In such a gear coupling that transmits power via the inner and outer gears 11, 21, a pair of supply and drainage holes 23, 23 are formed so as to penetrate the flange 22 of the outer cylinder 20. In addition, by filling a lubricant such as grease between the inner cylinder 10 and the outer cylinder 20 through the supply / discharge grease holes 23, 23, it is possible to suppress wear, corrosion, heat generation, etc. on the surfaces of the gears 11, 21 to which a particularly large force is applied. It is supposed to be.

また、以下の特許文献１に示すようなギアカップリング（歯車形軸継手）では、この歯車の近傍に潤滑剤供給口を形成することでその歯車に対して効率良く潤滑剤を供給するようにしている。
また、以下の特許文献２には、その内筒側に給油穴を形成し、この給油穴からその内筒側の歯車部分に直接給油するようにしたギアカップリング（歯車式軸継手）が開示されている。 Further, in a gear coupling (gear-type shaft coupling) as shown in Patent Document 1 below, a lubricant supply port is formed in the vicinity of the gear so that the lubricant is efficiently supplied to the gear. ing.
Patent Document 2 below discloses a gear coupling (gear-type shaft coupling) in which an oil supply hole is formed on the inner cylinder side, and oil is directly supplied from the oil supply hole to a gear portion on the inner cylinder side. Has been.

さらに、以下の特許文献３には、これとは反対にその外筒側に潤滑剤注入口を形成し、この潤滑剤注入口からその外筒側の歯車部分に直接給油するようにしたギアカップリングが開示されている。
特開平８−６１４７３号公報 特開平２−２７５１１７号公報 特開平１−２７５９１８号公報 Further, in Patent Document 3 below, a lubricant cup is formed on the outer cylinder side opposite to the gear cup, and the gear cup is configured to directly supply oil from the lubricant inlet to the gear portion on the outer cylinder side. A ring is disclosed.
JP-A-8-61473 JP-A-2-275117 JP-A-1-275918

ところで、図１１および図１２に示したように内筒１０と外筒２０間にグリースなどの潤滑剤を充填したギアカップリングにあっては、経年劣化や摩耗粉混入などにより潤滑性が低下した潤滑剤を適宜新たなものと交換する場合には、通常、給排脂孔２３，２３のプラグＰをそれぞれ外してその給排脂孔２３，２３を開放させた状態とした後、一方の給排脂孔２３から新たな潤滑剤を注入し、その注入圧によってその内部に既に充填されている古い潤滑剤を他方の給排脂孔２３から押し出すようにして新旧の潤滑剤を置換することによって行われている。   By the way, as shown in FIGS. 11 and 12, in the gear coupling in which a lubricant such as grease is filled between the inner cylinder 10 and the outer cylinder 20, the lubricity is deteriorated due to deterioration over time or wear powder. When the lubricant is replaced with a new one as appropriate, normally, the plugs P of the supply / drainage holes 23, 23 are respectively removed and the supply / drainage holes 23, 23 are opened, and then one of the supply / exhaust holes is opened. By injecting a new lubricant from the drainage hole 23 and replacing the old and new lubricant by pushing the old lubricant already filled in the interior by the injection pressure from the other supply / drainage hole 23 Has been done.

しかしながら、従来のギアカップリングは、これら給排脂孔２３，２３が外筒２０のフランジ２２部分にそれぞれ対向するように形成されているため、既存の古い潤滑剤が完全に抜けきらずにその一部が内外歯車１１，２１の周辺にそのまま残ってしまい、その部分の潤滑性が著しく低下してしまう可能性がある。特に、潤滑剤としてグリースなどの粘性の高いものを用いた場合は、その現象が顕著となる。   However, the conventional gear coupling is formed so that these oil supply / drainage holes 23, 23 face the flange 22 portion of the outer cylinder 20 respectively. The portion may remain as it is around the inner and outer gears 11 and 21, and the lubricity of the portion may be significantly reduced. In particular, when a highly viscous material such as grease is used as the lubricant, the phenomenon becomes remarkable.

一方、前記特許文献１に示すようにこの歯車の近傍に潤滑剤供給口を形成した構造でも交換した際に古い潤滑剤が完全に抜けきらず、既存の古い潤滑剤の一部がその歯車の周辺にそのまま残ってしまい、前記と同様な潤滑不足を招く可能性がある。
また、前記特許文献２および３に示すように内外歯車部分に直接給油穴（潤滑剤注入口）を形成する構造では、前記の構造に比べてその歯車部分に古い油が残る可能性は少ないが、その歯車部分に給油穴（潤滑剤注入口）を直接形成しているため、その部分の強度が著しく低下するおそれがあり、望ましい構造ではない。
そこで、本発明はこのような課題を有効に解決するために案出されたものであり、その主な目的は、内筒と外筒間に充填された潤滑剤を交換するに際し、その古い潤滑剤を確実に排出して新たな潤滑剤と交換（置換）できる新規なギアカップリングを提供するものである。 On the other hand, as shown in Patent Document 1, even when the lubricant supply port is formed in the vicinity of the gear, the old lubricant cannot be completely removed when the replacement is performed, and a part of the existing old lubricant is around the gear. May be left as it is, and may cause insufficient lubrication similar to the above.
Further, in the structure in which the oil supply hole (lubricant injection port) is directly formed in the inner and outer gear parts as shown in Patent Documents 2 and 3, there is less possibility that old oil will remain in the gear part as compared with the above structure. Since the oil supply hole (lubricant injection port) is directly formed in the gear portion, the strength of the portion may be significantly reduced, which is not a desirable structure.
Therefore, the present invention has been devised to effectively solve such a problem, and its main purpose is to replace the lubricant filled between the inner cylinder and the outer cylinder with the old lubrication. The present invention provides a new gear coupling that can reliably discharge the agent and replace (replace) it with a new lubricant.

前記課題を解決するために請求項１の発明は、
一方の回転軸に連結される内筒と、他方の回転軸に直接あるいは他の内外筒を介して連結される外筒とを有すると共に、当該外筒の内周面に形成された内歯車と、前記内筒の外周面に形成された外歯車とを噛み合わせてなるギアカップリングであって、前記外筒に、これを前記内筒側に貫通するように少なくとも２つ以上の給排脂孔を設けると共に、当該給排脂孔のうち少なくとも１つを前記内外歯車の噛み合わせ部の近傍に形成すると共に、他の給排脂孔のうち少なくとも１つを前記噛み合わせ部を挟んだ他方に形成したことを特徴とするギアカップリングである。 In order to solve the above-mentioned problem, the invention of claim 1
An inner cylinder coupled to one rotating shaft and an outer cylinder coupled to the other rotating shaft directly or via another inner and outer cylinder, and an internal gear formed on the inner peripheral surface of the outer cylinder; A gear coupling formed by meshing with an external gear formed on the outer peripheral surface of the inner cylinder, wherein at least two or more oil supply / drainage oils are formed in the outer cylinder so as to penetrate the outer cylinder to the inner cylinder side. The hole is provided, and at least one of the supply / discharge grease holes is formed in the vicinity of the meshing portion of the internal / external gear, and at least one of the other supply / discharge grease holes is sandwiched between the meshing portions. It is the gear coupling characterized by having formed in.

また、請求項２の発明は、
請求項１に記載のギアカップリングにおいて、前記外筒にフランジを形成すると共に、当該フランジに前記給排脂孔のうち少なくとも１つを形成したことを特徴とするギアカップリングである。
また、請求項３の発明は、
請求項１または２に記載のギアカップリングにおいて、前記噛み合わせ部の端部に、その噛み合わせ部に沿って環状に延びる空隙部を形成すると共に、当該空隙部に臨むように前記給排脂孔の１つを形成したことを特徴とするギアカップリングである。
また、請求項４の発明は、
請求項１〜３のいずれか１項に記載のギアカップリングにおいて、前記給排脂孔を前記外筒の周方向に沿って複数形成したことを特徴とするギアカップリングである。 The invention of claim 2
The gear coupling according to claim 1, wherein a flange is formed on the outer cylinder, and at least one of the supply and drainage holes is formed on the flange.
The invention of claim 3
3. The gear coupling according to claim 1, wherein an air gap extending annularly along the meshing portion is formed at an end of the meshing portion, and the supply and drainage fat is provided so as to face the space. A gear coupling characterized in that one of the holes is formed.
The invention of claim 4
The gear coupling according to any one of claims 1 to 3, wherein a plurality of the oil supply / drainage holes are formed along a circumferential direction of the outer cylinder.

請求項１の発明によれば、外筒に、これを前記内筒側に貫通するように少なくとも２つ以上の給排脂孔を設けると共に、当該給排脂孔のうち少なくとも１つを前記内外歯車の噛み合わせ部の近傍に形成すると共に、他の給排脂孔のうち少なくとも１つを前記噛み合わせ部を挟んだ他方に形成したことから、先ず、内筒と外筒間が空の状態から一方の給排脂孔から新しい潤滑剤を注入すると、その潤滑材が軸端全面に行き渡った後に、その噛み合わせ部を通過して他方の給排脂孔にまで充填されることになる。   According to the first aspect of the present invention, the outer cylinder is provided with at least two or more oil supply / drainage holes so as to penetrate the outer cylinder to the inner cylinder side, and at least one of the oil supply / drainage holes is provided in the inner and outer sides. Since it is formed in the vicinity of the meshing portion of the gear and at least one of the other oil supply / drainage holes is formed on the other side of the meshing portion, first, the space between the inner cylinder and the outer cylinder is empty. When a new lubricant is injected from one of the supply / discharge grease holes, the lubricant spreads over the entire surface of the shaft end, and then passes through the meshing portion to be filled to the other supply / discharge oil hole.

これによって、その噛み合わせ部全体に確実に潤滑剤を供給することができるため、良好な潤滑性を発揮することができる。
次に、既に充填されている古い潤滑剤を交換するに際しては、同様に一方の給排脂孔から新しい潤滑剤を注入すると、既に充填されている古い潤滑剤がその注入圧によってその噛み合わせ部を通過して他方の給排脂孔から排出されることになる。 Thereby, since the lubricant can be reliably supplied to the entire meshing portion, good lubricity can be exhibited.
Next, when replacing an old lubricant that has already been filled, similarly, if a new lubricant is injected from one of the supply / discharge holes, the old lubricant that has already been filled is brought into its meshing portion by its injection pressure. It will be discharged | emitted from the other supply / drain fat hole.

これによって、内筒と外筒間に充填された古い潤滑剤の全てを確実に排出して新たな潤滑剤と交換（置換）することが可能となり、常に良好な潤滑性を維持することができる。
また、請求項２の発明によれば、前記外筒にフランジを形成すると共に、当該フランジに前記給排脂孔のうち少なくとも１つを形成したことから、潤滑剤の給排脂作業を比較的容易に行うことができる。 As a result, it is possible to reliably discharge all of the old lubricant filled between the inner cylinder and the outer cylinder and replace (replace) it with a new lubricant, and always maintain good lubricity. .
According to the invention of claim 2, since the flange is formed on the outer cylinder and at least one of the supply / discharge grease holes is formed on the flange, the supply / discharge grease operation of the lubricant is relatively performed. It can be done easily.

また、請求項３の発明によれば、前記噛み合わせ部の端部に、その噛み合わせ部に沿って環状に延びる空隙部を形成すると共に、当該空隙部に臨むように前記給排脂孔の１つを形成したことから、噛み合わせ部への新たな潤滑剤の給脂およびその噛み合わせ部の古い潤滑剤の排脂をより効果的に行うことができる。
また、請求項４の発明によれば、前記給排脂孔を前記外筒の周方向に沿って複数形成したことから、潤滑剤の給排脂量が増大し、その交換作業をより効率良く実施することが可能となる。 According to a third aspect of the present invention, a gap extending annularly along the engagement portion is formed at an end of the engagement portion, and the oil supply / drainage hole is formed so as to face the gap portion. Since one is formed, it is possible to more effectively feed new lubricant to the meshing portion and drain old lubricant from the meshing portion.
According to the invention of claim 4, since a plurality of the oil supply / drainage holes are formed along the circumferential direction of the outer cylinder, the amount of oil supply / drainage of the lubricant is increased, and the replacement work is more efficiently performed It becomes possible to carry out.

以下、本発明を実施するための最良の形態を添付図面を参照しながら詳述する。
図１〜図３は、本発明に係るギアカップリング（歯車式軸継手）１００の第１の実施の形態を示したものであり、図１はその縦断面図、図２は図１中Ｘ−Ｘ線方向断面図、図３は図１中Ａ部を示す部分拡大図である。
図示するようにこのギアカップリング１００は、同軸上に位置する一対の回転軸Ｓ１，Ｓ２のうち、一方の回転軸Ｓ１の端部に固定された内筒１０と、他方の回転軸Ｓ２側に固定された外筒２０とを有すると共に、この外筒２０の内周面に形成された内歯車２１と、前記内筒１０の外周面に形成された外歯車１１とを相互に噛み合うように同軸上に組み合わせて構成されており、この内筒１０と外筒２０との間にグリースなどの潤滑剤が充填された状態となっている。 Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the accompanying drawings.
1 to 3 show a first embodiment of a gear coupling (gear type shaft coupling) 100 according to the present invention, FIG. 1 is a longitudinal sectional view thereof, and FIG. 2 is an X in FIG. FIG. 3 is a partial enlarged view showing a portion A in FIG.
As shown in the figure, the gear coupling 100 includes an inner cylinder 10 fixed to an end of one rotation shaft S1 of the pair of rotation shafts S1 and S2 located on the same axis and the other rotation shaft S2 side. The outer cylinder 20 is fixed, and the inner gear 21 formed on the inner peripheral surface of the outer cylinder 20 and the outer gear 11 formed on the outer peripheral surface of the inner cylinder 10 are coaxially engaged with each other. The inner cylinder 10 and the outer cylinder 20 are filled with a lubricant such as grease.

この外筒２０は、その内径が前記内筒１０の外径よりも十分に径大な筒本体２０ａの一端部にフランジ２２を形成したものであり、本実施の形態にあっては、このフランジ２２が他方の回転軸Ｓ２の端部に固定されたフランジ部材３０に対して図示しない締結ボルトなどによって一体的に締結されることでその他方の回転軸Ｓ２の端部に同軸上に固定されると共にこの他方の回転軸Ｓ２と同期して回動するようになっている。   The outer cylinder 20 has a flange 22 formed at one end of a cylinder body 20a whose inner diameter is sufficiently larger than the outer diameter of the inner cylinder 10, and in the present embodiment, this flange 22 is integrally fastened to a flange member 30 fixed to the end of the other rotating shaft S2 by a fastening bolt (not shown) or the like, so that it is coaxially fixed to the end of the other rotating shaft S2. At the same time, it rotates in synchronization with the other rotation axis S2.

また、この外筒２０の筒本体２０ａの他端部には、外筒２０との隙間を塞ぐべく内筒１０側に延びる環状の鍔部２４が形成されていると共に、その鍔部２４の内周面にはその内周面に沿って延びる環状の溝部２５が形成されている。そして、この溝部２５内にはＯリング２６が嵌め込まれるようになっており、この鍔部２４とＯリング２６によって内筒１０と外筒２０の端部間の隙間がシールされるようになっている。   In addition, an annular flange 24 extending toward the inner cylinder 10 is formed at the other end of the cylinder main body 20a of the outer cylinder 20 so as to close the gap with the outer cylinder 20, and the inside of the flange 24 An annular groove 25 extending along the inner peripheral surface is formed on the peripheral surface. An O-ring 26 is fitted in the groove 25, and the gap between the end portions of the inner cylinder 10 and the outer cylinder 20 is sealed by the flange 24 and the O-ring 26. Yes.

また、図３に示すように、この外筒２０の内周面に形成された内歯車２１の軸方向の長さは、内筒１０の外周面に形成された外歯車１１の軸方向の長さよりもやや長くなっており、回転軸Ｓ１，Ｓ２の間隔、すなわちこれら回転軸Ｓ１，Ｓ２の軸方向の伸縮動を許容するような構造となっている。
さらに、この内筒１０の外周面に形成された外歯車１１は、その軸方向にやや円弧状に形成されており、回転軸Ｓ１，Ｓ２の軸芯が多少ずれた場合でも数°程度であればその芯ずれを許容し、その歯車１１，２１同士が相互に干渉しないような構造となっている。 Further, as shown in FIG. 3, the axial length of the internal gear 21 formed on the inner peripheral surface of the outer cylinder 20 is the axial length of the outer gear 11 formed on the outer peripheral surface of the inner cylinder 10. It is slightly longer than that, and has a structure that allows the interval between the rotation axes S1 and S2, that is, the expansion and contraction movement of these rotation axes S1 and S2.
Further, the external gear 11 formed on the outer peripheral surface of the inner cylinder 10 is formed in a slightly circular arc shape in the axial direction, and even if the shaft centers of the rotating shafts S1 and S2 are slightly deviated, they may be about several degrees. For example, the misalignment is allowed, and the gears 11 and 21 do not interfere with each other.

また、この外歯車１１と内歯車２１との噛み合わせ部の端部、すなわち外筒２０の鍔部２４側端部には、その噛み合わせ部に沿って環状に延びるように空隙部４０が形成されている。
そして、図示するようにこの外筒２０の筒本体２０ａには、この空隙部４０に臨むように１つの給排脂孔２３ａが形成されており、この外筒２０と内筒１０間の潤滑剤をこの空隙部４０を介して給排脂できるようになっている。 Further, a gap 40 is formed at the end of the meshing portion between the external gear 11 and the internal gear 21, that is, the end of the outer cylinder 20 on the flange 24 side so as to extend annularly along the meshing portion. Has been.
As shown in the figure, the cylinder body 20a of the outer cylinder 20 is formed with one supply / discharge grease hole 23a so as to face the gap 40, and a lubricant between the outer cylinder 20 and the inner cylinder 10 is formed. Can be fed and discharged through the gap 40.

また、この外筒２０のフランジ２２にも、これを内部に貫通するように１つの給排脂孔２３ｂが形成されており、この外筒２０と内筒１０間の潤滑剤を直接給排脂できるようになっている。
また、これら各給排脂孔２３ａ、２３ｂは、それぞれねじ込み式のプラグＰ、Ｐが着脱自在に備えられており、これらのプラグＰ、Ｐを着脱することで各給排脂孔２３ａ、２３ｂが適宜開閉されるようになっている。 The flange 22 of the outer cylinder 20 is also provided with one supply / discharge grease hole 23b so as to penetrate through the inside thereof, and the lubricant between the outer cylinder 20 and the inner cylinder 10 is directly supplied and discharged. It can be done.
In addition, each of these oil supply / drainage holes 23a, 23b is detachably provided with screw-in type plugs P, P. By attaching / detaching these plugs P, P, each of the oil supply / drainage holes 23a, 23b is provided. It can be opened and closed as appropriate.

そして、このような構造をした本発明のギアカップリング１００にあっては、通常時には、この外筒２０と内筒１０間に充填されたグリースなどの潤滑剤によってその外歯車１１と内歯車２１との噛み合わせ部の潤滑性が維持されることになるが、例えば長期の使用によりその潤滑剤が劣化してきたり、あるいはこれら各部材を構成する摩擦粉（鉄粉など）が混入するなどしてその潤滑性が低下してきた場合には、以下の手順によりその古くなった既存の潤滑剤を新たな潤滑剤に交換（置換）することになる。   In the gear coupling 100 of the present invention having such a structure, the outer gear 11 and the inner gear 21 are usually lubricated by a lubricant such as grease filled between the outer cylinder 20 and the inner cylinder 10. The lubricity of the meshing part will be maintained, but for example, the lubricant will deteriorate due to long-term use, or friction powder (iron powder etc.) constituting these members will be mixed When the lubricity is lowered, the old lubricant is replaced (replaced) with a new lubricant by the following procedure.

すなわち、図１および図３に示すように、先ず外筒２０に形成された各給排脂孔２３ａ、２３ｂのプラグＰ、Ｐを取り外した後、フランジ２２側に形成された給排脂孔２３ｂに図示しない潤滑剤注入装置を接続し、この潤滑剤注入装置を用いてその給排脂孔２３ｂから新たな潤滑剤を注入する。
すると、この注入圧によってその外筒２０と内筒１０間に充填されている既存の潤滑剤が軸端全面（回転軸Ｓ１とＳ２との隙間およびその周囲）に行き渡った後にその外歯車１１と内歯車２１との噛み合わせ部を通過してその端部の空隙部４０に達し、さらにこの空隙部４０に充填された後、これを通過して他方の給排脂孔２３ａから順にその外部に排出されることになる。 That is, as shown in FIGS. 1 and 3, first, after removing the plugs P, P of the respective supply / discharge grease holes 23 a, 23 b formed in the outer cylinder 20, the supply / discharge grease holes 23 b formed on the flange 22 side. Is connected to a lubricant injection device (not shown), and a new lubricant is injected from the supply / discharge hole 23b using this lubricant injection device.
Then, the existing lubricant filled between the outer cylinder 20 and the inner cylinder 10 is spread over the entire shaft end (gap between the rotation shafts S1 and S2 and the periphery thereof) by the injection pressure, and then the outer gear 11 After passing through the meshing portion with the internal gear 21 and reaching the gap portion 40 at the end thereof, and further filled into this gap portion 40, it passes through this and sequentially enters the outside from the other supply / discharge grease hole 23 a. Will be discharged.

そして、この給排脂孔２３ａから排出される古い潤滑剤の量よりもやや多い量の新たな潤滑剤を注入することで既存の古い潤滑剤の全てが排出され、外筒２０と内筒１０間の潤滑剤が全て新たな潤滑剤に交換（置換）されることになる。
このように本発明のギアカップリング１００は、外筒２０に前記内外歯車１１，２１の噛み合わせ部を挟むようにして給排脂孔２３ａ、２３ｂをそれぞれに形成したことから、内筒１０と外筒２０間に充填された古い潤滑剤の全てを確実に排出して新たな潤滑剤と交換（置換）することが可能となり、これによって、特にその噛み合わせ部全体に確実に新たな潤滑剤を供給することができるため、良好な潤滑性を発揮することができる。 Then, by injecting a new lubricant that is slightly larger than the amount of the old lubricant discharged from the supply / discharge fat hole 23a, all of the existing old lubricant is discharged, and the outer cylinder 20 and the inner cylinder 10 are discharged. All the lubricants in the meantime are replaced (replaced) with new lubricants.
As described above, the gear coupling 100 of the present invention has the oil supply and discharge holes 23a and 23b formed so that the meshing portions of the inner and outer gears 11 and 21 are sandwiched between the outer cylinder 20 and the inner cylinder 10 and the outer cylinder. It is possible to reliably discharge all of the old lubricant filled between 20 and replace (replace) it with a new lubricant, which ensures that new lubricant is supplied to the entire meshing part. Therefore, good lubricity can be exhibited.

また、内筒１０と外筒２０間が空の状態から一方の給排脂孔２３ｂから新しい潤滑剤を注入した場合でも、その潤滑剤が軸端全面に行き渡った後に、その噛み合わせ部を通過してその端部の空隙部４０に達し、さらにこの空隙部４０を介して他方の給排脂孔２３ａにまで充填されることから前記と同様にその噛み合わせ部全体に対して確実に新たな潤滑剤を供給することができる。   Further, even when a new lubricant is injected from one of the supply / discharge grease holes 23b from the state where the inner cylinder 10 and the outer cylinder 20 are empty, after the lubricant has spread all over the shaft end, it passes through the meshing portion. Then, it reaches the gap 40 at the end, and further fills the other oil supply / drainage hole 23a through the gap 40, so that the entire meshing part is surely renewed as described above. Lubricant can be supplied.

また、本発明のギアカップリング１００は、図１１および図１２に示したような既存のギアカップリング（汎用品）を用い、これに多少の加工を施すことで容易に製造することができるため、既存のギアカップリングをそのまま活用することが可能となり、その製造コストも安価になる。例えば、外筒２０内面の内歯車２１のうち、その鍔部２４側を環状に切削加工して空隙部４０を形成した後、その空隙部４０に臨むようにその外筒２０の部分に給排脂孔２３ａを穿孔し、その給排脂孔２３ａにプラグＰを嵌め込むことで本発明のギアカップリング１００を製造することが可能となる。   In addition, the gear coupling 100 of the present invention can be easily manufactured by using an existing gear coupling (general-purpose product) as shown in FIGS. 11 and 12 and applying some processing thereto. The existing gear coupling can be used as it is, and its manufacturing cost is also reduced. For example, in the internal gear 21 on the inner surface of the outer cylinder 20, the flange portion 24 side is cut into an annular shape to form the gap portion 40, and then is supplied to and discharged from the outer cylinder 20 so as to face the gap portion 40. The gear coupling 100 of the present invention can be manufactured by drilling the oil holes 23a and fitting the plugs P into the oil supply / discharge oil holes 23a.

なお、本実施の形態では、外筒２０のフランジ２２側の給排脂孔２３ｂから新しい潤滑剤を注入し、鍔部２４側の給排脂孔２３ａから古い潤滑剤を排出するようにしたが、その反対、つまり鍔部２４側の給排脂孔２３ａから新しい潤滑剤を注入し、フランジ２２側の給排脂孔２３ｂから古い潤滑剤を排出するようにしても良く、寧ろこの向きのほうが潤滑性が要求される噛み合わせ部全体に対してより確実に新たな潤滑剤を供給することができる。   In the present embodiment, a new lubricant is injected from the supply / discharge grease hole 23b on the flange 22 side of the outer cylinder 20, and the old lubricant is discharged from the supply / discharge grease hole 23a on the flange 24 side. On the contrary, a new lubricant may be injected from the supply / discharge grease hole 23a on the flange 24 side, and an old lubricant may be discharged from the supply / discharge oil hole 23b on the flange 22 side. A new lubricant can be more reliably supplied to the entire meshing portion where lubricity is required.

次に、図４〜図８は本発明に係るギアカップリング（歯車式軸継手）１００の他の実施の形態を示したものである。
先ず、図４は、本発明に係るギアカップリング１００の第２の実施の形態を示したものであり、前記第１の実施の形態で示した外筒２０のフランジ２２側に設けられた給排脂孔２３ｂをその軸中心を挟んで互いに対向するように複数設けると共に、鍔部２４側の給排脂孔２３ａも同様にその軸中心を挟んで互いに対向するように複数設けるようにしたものである。 4 to 8 show another embodiment of the gear coupling (gear type shaft coupling) 100 according to the present invention.
First, FIG. 4 shows a second embodiment of the gear coupling 100 according to the present invention, and a feed provided on the flange 22 side of the outer cylinder 20 shown in the first embodiment. A plurality of fat drain holes 23b are provided so as to face each other across the axis center, and a plurality of oil supply / drain holes 23a on the flange 24 side are similarly provided so as to face each other across the axis center. It is.

そして、このように各給排脂孔２３ａ、２３ｂをそれぞれ複数設ければ、各給排脂孔２３ａ、２３ｂごとに任意のものを選択して利用できるため、より交換作業などが用意できる。すなわち、前記第１の実施の形態のように各給排脂孔２３ａ、２３ｂをそれぞれ１つずつしか設けていない場合、各回転軸Ｓ１，Ｓ２の回転停止位置によっては、各給排脂孔２３ａ、２３ｂの位置が作業員の位置に対して反対方向になったりして交換作業がし難くなることが考えられるが、本実施の形態のように各給排脂孔２３ａ、２３ｂをそれぞれ複数設けておけば、その停止位置に応じて最も作業のし易い任意の各給排脂孔２３ａ、２３ｂを選択して利用することが可能となるため、より作業性を向上させることができる。また、潤滑剤の交換に際し、排出側となるいずれかの給排脂孔２３ａ、２３ｂの全てを開口させておけば、その排出量も増やすことができるため、より迅速に交換作業を行うことも可能となる。   If a plurality of each of the oil supply / drainage holes 23a, 23b is provided in this way, any desired one can be selected and used for each of the oil supply / drainage holes 23a, 23b. That is, in the case where only one each of the oil supply / drainage holes 23a, 23b is provided as in the first embodiment, depending on the rotation stop position of each of the rotation shafts S1, S2, each of the oil supply / drainage holes 23a , 23b may be in a direction opposite to the position of the worker, making it difficult to perform the replacement work. However, as in the present embodiment, each of the supply / discharge grease holes 23a, 23b is provided in plural. In this case, it is possible to select and use any of the supply / drainage holes 23a and 23b that are most easily operated according to the stop position, so that the workability can be further improved. In addition, when replacing the lubricant, if all of the supply and drainage holes 23a, 23b on the discharge side are opened, the discharge amount can be increased, so that the replacement work can be performed more quickly. It becomes possible.

なお、本実施の形態の場合、潤滑剤の供給側となるいずれかの給排脂孔２３ａ、２３ｂの全てを開口させると、既存の潤滑油が抜けきる前に供給された潤滑油の一部がその軸端や空隙部４０をバイパスして抜け出てしまうため、供給側は原則として１つとすることが望ましい。
次に、図５は、本発明に係るギアカップリング１００の第３の実施の形態を示したものであり、各回転軸Ｓ１，Ｓ２に対してそれぞれ前記と同様な構成をした内筒１０と外筒２０を設け、各外筒２０，２０のフランジ２２，２２同士を図示しない締結ボルトによって一体的に締結したものである。 In the case of the present embodiment, when all of the supply / drainage holes 23a, 23b on the lubricant supply side are opened, a part of the lubricant supplied before the existing lubricant is completely removed. However, since the shaft end and the gap 40 are bypassed, the supply side is preferably one in principle.
Next, FIG. 5 shows a third embodiment of the gear coupling 100 according to the present invention, and an inner cylinder 10 having the same configuration as described above for each of the rotation shafts S1 and S2. The outer cylinder 20 is provided, and the flanges 22, 22 of the outer cylinders 20, 20 are integrally fastened by fastening bolts (not shown).

そして、このような構成をしたギアカップリング１００によれば、前記各実施の形態と同様に新旧の潤滑油の交換を確実に実施できることは勿論、その交換作業のバリエーションが増えるため、より作業性が向上する。
例えば、通常考えられる交換方法としては、外筒２０，２０のフランジ２２，２２側に設けられた給排脂孔２３ｂ、２３ｂの一方から新たな潤滑剤を供給し、内筒１０，１０の空隙部４０、４０側に設けられた給排脂孔２３ａ、２３ａの両方から同時に既存の潤滑剤を排出したり、あるいはそのフランジ２２，２２側に設けられた給排脂孔２３ｂ、２３ｂの全てを閉じた状態とし内筒１０，１０の空隙部４０、４０側に設けられた給排脂孔２３ａ、２３ａのみを用いて潤滑剤を供給するようにしても良い。 And according to the gear coupling 100 having such a configuration, it is possible to surely replace the old and new lubricating oil as in the above-described embodiments. Will improve.
For example, as a normally considered replacement method, a new lubricant is supplied from one of the supply / discharge grease holes 23b and 23b provided on the flanges 22 and 22 side of the outer cylinders 20 and 20, and the gap between the inner cylinders 10 and 10 is increased. The existing lubricant is simultaneously discharged from both of the supply and discharge grease holes 23a and 23a provided on the portions 40 and 40, or all of the supply and discharge grease holes 23b and 23b provided on the flanges 22 and 22 side are removed. The lubricant may be supplied by using only the supply / discharge grease holes 23a and 23a provided in the gaps 40 and 40 of the inner cylinders 10 and 10 in the closed state.

また、本実施の形態の変形例として、図６に示すように外筒２０，２０のフランジ２２，２２側にそれぞれ複数の給排脂孔２３ｂ、２３ｂを対向するように設けると共に、内筒１０，１０の空隙部４０、４０側にも同様にそれぞれ複数の給排脂孔２３ａ、２３ａを対向するように設けても良い。
そして、このように複数の給排脂孔２３ａ、２３ａ…、２３ｂ、２３ｂ…を設ければ、例えば図７および図８に示すように、潤滑剤の交換に際して複数の給排脂孔２３ａ、２３ａ…、２３ｂ、２３ｂ…を同時に用いて利用できるため、より効率的に潤滑剤の交換作業を実現することができる。 Further, as a modification of the present embodiment, as shown in FIG. 6, a plurality of supply / discharge grease holes 23 b and 23 b are provided on the flanges 22 and 22 side of the outer cylinders 20 and 20, respectively, and the inner cylinder 10. , 10 may be provided so that a plurality of oil supply / drainage holes 23a, 23a face each other in the same manner.
If a plurality of oil supply / drain holes 23a, 23a,..., 23b, 23b... Are provided in this way, for example, as shown in FIGS. .., 23b, 23b... Can be used at the same time, so that the lubricant can be replaced more efficiently.

すなわち、図７は、外筒２０，２０のフランジ２２，２２側に形成された複数の給排脂孔２３ｂ、２３ｂ…のうちの一部を供給用に用い、内筒１０，１０の空隙部４０、４０側に形成された複数の給排脂孔２３ａ、２３ａ…の全てを排出用として用いたものであり、また、図８は、これとは反対に、内筒１０，１０の空隙部４０、４０側に形成された複数の給排脂孔２３ａ、２３ａ…の全てを供給用として用い、外筒２０，２０のフランジ２２，２２側に形成された複数の給排脂孔２３ｂ、２３ｂ…の全てを供給用に用いたものであり、これによって、より迅速な潤滑剤交換作業を達成することができる。   That is, FIG. 7 shows a case where a part of the plurality of supply / discharge grease holes 23b, 23b... Formed on the flanges 22 and 22 side of the outer cylinders 20 and 20 is used for supply, and the gaps of the inner cylinders 10 and 10 are used. .., All of the plurality of oil supply / drainage holes 23a, 23a... Formed on the 40, 40 side are used for discharge. A plurality of supply / discharge grease holes 23a, 23a ... formed on the 40, 40 side are used for supply, and a plurality of supply / discharge grease holes 23b, 23b formed on the flanges 22, 22 side of the outer cylinders 20, 20 are used. All of the above are used for supply, whereby a more rapid lubricant replacement operation can be achieved.

（実施例１）
図１および図２に示すような本発明のギアカップリング１００と、図１１および図１２に示したような従来構造のギアカップリングを用い、その潤滑剤（グリース）をそれぞれの方法によって交換した後、それぞれのギアカップリングを分解してその交換結果を目視によって確認した。
具体的には、先ず、潤滑油が空の状態のギアカップリングに対し、予め黒色に着色したグリースを充填して所定時間運転した後、予め白色に着色したグリースを注入し、次に、その注入した白色のグリースの一部が排出口となる給排脂孔の全てから排出されてきた状態でグリースの注入を停止してからそのギアカップリングを分解してその内筒１０に付着したグリースの状態を目視によって確認した。 Example 1
The gear coupling 100 of the present invention as shown in FIGS. 1 and 2 and the conventional gear coupling as shown in FIGS. 11 and 12 were used, and the lubricant (grease) was exchanged by each method. Thereafter, each gear coupling was disassembled and the result of replacement was visually confirmed.
Specifically, first, a gear coupling in which the lubricating oil is empty is filled with a grease colored in advance in black and operated for a predetermined time, and then a grease colored in advance in white is injected. Grease attached to the inner cylinder 10 by disassembling the gear coupling after stopping the grease injection in a state where a part of the injected white grease has been discharged from all of the supply / discharge grease holes serving as discharge ports The state of was confirmed visually.

この結果、従来構造のギアカップリングでは、回転軸端のグリースは全て白色のものに置き換わっていたもののその内筒１０の外歯車１１部分には、黒色のグリースの一部がそのまま残存しているのが確認された。
これに対し、本発明構造のギアカップリングでは、回転軸端は勿論、外歯車１１部分も全て白色のグリースに置き換わっており、その全量が新たなグリースに置換されたのが確認できた。 As a result, in the conventional gear coupling, the grease at the end of the rotating shaft has been replaced with a white one, but a part of the black grease remains in the outer gear 11 portion of the inner cylinder 10 as it is. It was confirmed.
On the other hand, in the gear coupling of the present invention structure, not only the rotating shaft end but also the external gear 11 part was replaced with white grease, and it was confirmed that the entire amount was replaced with new grease.

（実施例２）
図９に示すように、従来構造（図１１、図１２）のギアカップリング（「給脂なし」、「給脂有り（潤滑剤交換後）」）と、図１および図２に示した本発明のギアカップリング（「給脂有り（潤滑剤交換後）」）とを用い、図９に示すような条件の下でその摩耗に関する試験を実施した。
試験条件としては、いずれも芯ずれ「１°」、負荷「１００Ｋｇ」、回転速度「１５０ｒｐｍ」、トルク（定格比）「０．３０倍」とした。 (Example 2)
As shown in FIG. 9, the gear coupling (“no lubrication”, “with lubrication (after lubricant replacement)”) of the conventional structure (FIGS. 11 and 12) and the book shown in FIG. 1 and FIG. Using the gear coupling of the invention (“with lubrication (after lubricant replacement)”), a test for wear was performed under the conditions shown in FIG.
The test conditions were all misalignment “1 °”, load “100 kg”, rotational speed “150 rpm”, and torque (rated ratio) “0.30 times”.

この結果、図１０に示すように、「給脂なし」の従来のギアカップリングの場合では、予想通りその摩耗速度（μｍ／ｈｒ）は、「０．９６」と極端に高く、また、「給脂あり」の従来のギアカップリングであっても、「０．２１」と比較的高いものであった。
これに対し、本発明に係るギアカップリング（給脂有り（潤滑剤交換後））にあっては、その摩耗速度（μｍ／ｈｒ）は、「０．１４」であり、優れた耐摩耗性を発揮することができた。 As a result, as shown in FIG. 10, in the case of the conventional gear coupling of “no lubrication”, the wear rate (μm / hr) is extremely high as “0.96” as expected. Even the conventional gear coupling with “greasing” was relatively high at “0.21”.
On the other hand, in the gear coupling according to the present invention (with lubrication (after lubricant replacement)), the wear rate (μm / hr) is “0.14”, and excellent wear resistance. Was able to demonstrate.

これは、前述したように従来構造のギアカップリングでは、潤滑剤交換を行ったもののその潤滑剤の一部が、特に歯車１１，２１の噛み合わせ部に残ってしまい、その全量が確実に交換できなかったのに対し、本発明のギアカップリングでは、潤滑剤交換を行うことにより、その全量が確実に入れ替わって古い潤滑剤が残ってしまうといった不都合が解消されるからである。   This is because, as described above, in the conventional gear coupling, although the lubricant was exchanged, a part of the lubricant remained particularly in the meshing portion of the gears 11 and 21, and the entire amount was surely exchanged. On the other hand, in the gear coupling of the present invention, by replacing the lubricant, the inconvenience that the entire amount is surely replaced and the old lubricant remains is eliminated.

本発明に係るギアカップリングの第１の実施の形態を示す縦断面図である。1 is a longitudinal sectional view showing a first embodiment of a gear coupling according to the present invention. 図１中Ｘ−Ｘ線矢視図である。It is a XX arrow directional view in FIG. 図１中Ａ部を示す部分拡大図である。It is the elements on larger scale which show the A section in FIG. 本発明に係るギアカップリングの第２の実施の形態を示す縦断面図である。It is a longitudinal cross-sectional view which shows 2nd Embodiment of the gear coupling which concerns on this invention. 本発明に係るギアカップリングの第３の実施の形態を示す縦断面図である。It is a longitudinal cross-sectional view which shows 3rd Embodiment of the gear coupling which concerns on this invention. 本発明に係るギアカップリングの第３の実施の形態の変形例を示す縦断面図である。It is a longitudinal cross-sectional view which shows the modification of 3rd Embodiment of the gear coupling which concerns on this invention. （Ａ）は本発明に係るギアカップリングの潤滑剤の交換例（フランジ側より給脂）を示す縦断面図、（Ｂ）は、そのＸ−Ｘ線断面図である。(A) is the longitudinal cross-sectional view which shows the example of replacement | exchange of the lubricant of the gear coupling which concerns on this invention (greasing from the flange side), (B) is the XX sectional view. （Ａ）は本発明に係るギアカップリングの潤滑剤の交換例（フランジ側より排脂）の１つを示す縦断面図、（Ｂ）は、そのＸ−Ｘ線断面図である。(A) is the longitudinal cross-sectional view which shows one of the replacement examples of the lubricant of the gear coupling which concerns on this invention (it drains from the flange side), (B) is the XX sectional drawing. 本発明の実施例（試験条件）を示す表図である。It is a table | surface figure which shows the Example (test condition) of this invention. 本発明の実施例（試験結果）を示すグラフ図である。It is a graph which shows the Example (test result) of this invention. 従来のギアカップリングの構造を示す縦断面図である。It is a longitudinal cross-sectional view which shows the structure of the conventional gear coupling. 図１１中Ｘ−Ｘ線矢視図である。It is a XX arrow directional view in FIG.

符号の説明Explanation of symbols

１００…ギアカップリング
１０…内筒
１１…外歯車
２０…外筒
２１…内歯車
２２…フランジ
２３ａ、２３ｂ…給排脂孔
２４…鍔部
２６…Ｏリング
４０…空隙部
Ｐ…プラグ
Ｓ１，Ｓ２…回転軸 DESCRIPTION OF SYMBOLS 100 ... Gear coupling 10 ... Inner cylinder 11 ... External gear 20 ... Outer cylinder 21 ... Internal gear 22 ... Flange 23a, 23b ... Supply / discharge grease hole 24 ... Gutter 26 ... O-ring 40 ... Gap part P ... Plug S1, S2 …Axis of rotation

Claims (4)

一方の回転軸に連結される内筒と、他方の回転軸に直接あるいは他の内外筒を介して連結される外筒とを有すると共に、当該外筒の内周面に形成された内歯車と、前記内筒の外周面に形成された外歯車とを噛み合わせてなるギアカップリングであって、
前記外筒に、これを前記内筒側に貫通するように少なくとも２つ以上の給排脂孔を設けると共に、当該給排脂孔のうち少なくとも１つを前記内外歯車の噛み合わせ部の近傍に形成すると共に、他の給排脂孔のうち少なくとも１つを前記噛み合わせ部を挟んだ他方に形成したことを特徴とするギアカップリング。 An inner cylinder coupled to one rotating shaft and an outer cylinder coupled to the other rotating shaft directly or via another inner and outer cylinder, and an internal gear formed on the inner peripheral surface of the outer cylinder; A gear coupling formed by meshing with an external gear formed on the outer peripheral surface of the inner cylinder,
The outer cylinder is provided with at least two supply and drainage holes so as to penetrate the outer cylinder to the inner cylinder side, and at least one of the supply and drainage holes is provided in the vicinity of the meshing portion of the inner and outer gears. A gear coupling characterized in that it is formed and at least one of the other oil supply / drainage holes is formed on the other side of the meshing portion. 請求項１に記載のギアカップリングにおいて、
前記外筒にフランジを形成すると共に、当該フランジに前記給排脂孔のうち少なくとも１つを形成したことを特徴とするギアカップリング。 The gear coupling according to claim 1, wherein
A gear coupling characterized in that a flange is formed on the outer cylinder, and at least one of the supply and drainage holes is formed on the flange. 請求項１または２に記載のギアカップリングにおいて、
前記噛み合わせ部の端部に、その噛み合わせ部に沿って環状に延びる空隙部を形成すると共に、当該空隙部に臨むように前記給排脂孔の１つを形成したことを特徴とするギアカップリング。 The gear coupling according to claim 1 or 2,
A gear characterized in that a gap extending annularly along the meshing portion is formed at an end of the meshing portion, and one of the oil supply / drainage holes is formed so as to face the gap. Coupling. 請求項１〜３のいずれか１項に記載のギアカップリングにおいて、
前記給排脂孔を前記外筒の周方向に沿って複数形成したことを特徴とするギアカップリング。 In the gear coupling according to any one of claims 1 to 3,
A gear coupling, wherein a plurality of the oil supply / drainage holes are formed along a circumferential direction of the outer cylinder.
JP2007120010A 2007-04-27 2007-04-27 Lubricant replacement method for gear coupling Expired - Fee Related JP5157237B2 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009008114A (en) * 2007-06-26 2009-01-15 Seisa Gear Ltd Greasing mechanism for gear shape coupling
US9200678B2 (en) 2011-09-07 2015-12-01 Mitsubishi Electric Corporation Gear coupling
CN106311751A (en) * 2015-06-18 2017-01-11 江苏荣基重工科技有限公司 Drum-shaped tooth coupling
EP3198158A4 (en) * 2014-09-25 2018-06-20 Renold PLC Lubricated gear coupling

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Publication number Priority date Publication date Assignee Title
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JPS6426026A (en) * 1987-07-03 1989-01-27 Netzsch Mohnopumpen Gmbh Swivel joint
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Publication number Priority date Publication date Assignee Title
US4004433A (en) * 1975-04-24 1977-01-25 Koppers Company, Inc. Continuously lubricated coupling
JPS6426026A (en) * 1987-07-03 1989-01-27 Netzsch Mohnopumpen Gmbh Swivel joint
JPH07259874A (en) * 1994-02-10 1995-10-09 Netzsch Mohnopumpen Gmbh Universal shaft coupling particulay mounted on universal coupling shaft for helical rotor machine

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JPN6012004658; 社団法人　日本機械学会（代表者会長　杉本正雄）: 機械図集　軸継手 初版, 19710515, 第１５頁, 社団法人　日本機械学会（代表者会長　杉本正雄） *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009008114A (en) * 2007-06-26 2009-01-15 Seisa Gear Ltd Greasing mechanism for gear shape coupling
US9200678B2 (en) 2011-09-07 2015-12-01 Mitsubishi Electric Corporation Gear coupling
EP3198158A4 (en) * 2014-09-25 2018-06-20 Renold PLC Lubricated gear coupling
CN106311751A (en) * 2015-06-18 2017-01-11 江苏荣基重工科技有限公司 Drum-shaped tooth coupling

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