WO2016031428A1 - チェーン - Google Patents
チェーン Download PDFInfo
- Publication number
- WO2016031428A1 WO2016031428A1 PCT/JP2015/070607 JP2015070607W WO2016031428A1 WO 2016031428 A1 WO2016031428 A1 WO 2016031428A1 JP 2015070607 W JP2015070607 W JP 2015070607W WO 2016031428 A1 WO2016031428 A1 WO 2016031428A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- link plate
- bush
- pair
- inner link
- chain
- Prior art date
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Classifications
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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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G13/00—Chains
- F16G13/02—Driving-chains
- F16G13/06—Driving-chains with links connected by parallel driving-pins with or without rollers so called open links
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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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G13/00—Chains
- F16G13/02—Driving-chains
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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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G15/00—Chain couplings, Shackles; Chain joints; Chain links; Chain bushes
- F16G15/04—Quickly-detachable chain couplings; Shackles chain links with rapid junction means are classified according to the corresponding kind of chain
- F16G15/06—Shackles designed for attachment by joint pins to chain elements, e.g. D-shackles so called harp links; the D-chain links are classified according to the corresponding kind of chain
Definitions
- the present invention relates to a chain in which a solid lubricant such as graphite is disposed between a bush and a pin.
- the O-ring is made of rubber. Therefore, when the chain is used, it wears by sliding against the bush or the outer plate, and if any part of the chain is cracked, it will tear from there. There is a risk of falling off. For this reason, there is room for improvement in suppressing the wear powder of the sliding member from leaking to the outside over a long period of time.
- the present invention has been made paying attention to such problems existing in the prior art.
- the object is to provide a chain that can prevent the solid lubricant between the pin and the bush from leaking to the outside over a long period of time.
- the chain according to the first aspect of the present invention includes a pair of inner link plates arranged opposite to each other and spaced apart from each other, and both ends joined to the pair of inner link plates, respectively.
- a cylindrical bush, a pin inserted into the bush, a solid lubricant disposed between the bush and the pin, and a pair of inner link plates sandwiched from the outside, both ends of the pin A pair of outer link plates through which each part penetrates, an interval holding portion for maintaining an interval between an outer surface of the inner link plate and an inner surface of the outer link plate, an outer surface of the inner link plate, and the outer link plate And an absorbent material capable of absorbing the liquid while sealing the solid lubricant.
- the solid lubricant between the pin and the bush is sealed by the absorbent that can absorb the liquid. Even if a part of the absorbent material is cut, it is more difficult to tear and fall off than the conventional O-ring. Therefore, it is possible to suppress the solid lubricant between the pin and the bush from leaking to the outside over a longer period of time than before.
- the absorbent material absorbs and holds the liquid lubricant. According to this configuration, since the liquid lubricant held by the absorbent is supplied between the pin and the bush, it is possible to improve the lubricity thereof.
- Both end portions of the bush pass through the pair of inner link plates and protrude to the outside of the pair of inner link plates, respectively, and the interval holding portion is outside the pair of inner link plates at both end portions of the bush. It is preferable that it is comprised by the protrusion part which protruded.
- the distance between the outer side surface of the inner link plate and the inner side surface of the outer link plate can be maintained without increasing the number of parts. It is preferable that the absorbent material is in contact with the outer side surface of the inner link plate and the inner side surface of the outer link plate in a state of surrounding the outer periphery of the protruding portion.
- an O-ring that contacts the outer side surface of the inner link plate and the inner side surface of the outer link plate in a state of surrounding the outer periphery of the protruding portion is disposed between the protruding portion and the absorbent material.
- the solid lubricant between the pin and the bush can be prevented from leaking to the outside over a long period of time.
- the chain 11 includes a plurality of inner links 13 and a plurality of outer links 15.
- Each inner link 13 has a pair of inner link plates 12 arranged to face each other along the width direction Y.
- Each outer link 15 has a pair of outer link plates 14 arranged so as to sandwich the pair of inner link plates 12 from the outside along the width direction Y.
- the inner link plate 12 and the outer link plate 14 are rounded and have a constriction at the center.
- the inner link plate 12 and the outer link plate 14 extend along the series direction X orthogonal to the width direction Y, and are arranged in parallel to each other. When the chain 11 is pulled from one end in the longitudinal direction and moves, the chain 11 moves along the series direction X.
- the distance between the pair of inner link plates 12 is set equal at one end and the other end of the inner link 13 in the series direction X, and one end and the other end of the outer link 15 in the series direction X are set.
- the distance between the pair of outer link plates 14 is equal. Therefore, this chain 11 is a so-called flat type chain.
- circular bush insertion holes 16 are formed so as to penetrate along the thickness direction of the inner link plate 12, that is, the width direction Y, respectively.
- two cylindrical bushes 17 are assembled between a pair of opposed inner link plates 12 so as to maintain a distance between the pair of inner link plates 12.
- Both end portions of each bush 17 are respectively fitted into the bush insertion holes 16 of the pair of inner link plates 12. Both end portions of each bushing 17 penetrate the pair of inner link plates 12 and project outside the pair of inner link plates 12, respectively.
- the projecting portion constitutes a projecting portion 17a, and constitutes an interval holding portion for maintaining an interval between the outer side surface 12a of the inner link plate 12 and the inner side surface 14a of the outer link plate 14. In this case, a slight gap is formed between the end surface 17 d of the bush 17 and the inner side surface 14 a of the outer link plate 14.
- the bush 17 is inserted into a cylindrical roller 18 and supports the roller 18 rotatably. That is, the bush 17 is loosely fitted to the roller 18 disposed between the pair of inner link plates 12. Between the outer side surface 12 a of the inner link plate 12 and the inner side surface 14 a of the outer link plate 14, an annular plate-like absorbent material 19 capable of absorbing a liquid lubricant such as grease is disposed on the outer periphery of the protrusion 17 a of the bush 17. It is arranged to surround.
- a pair of circular pin insertion holes 21 are formed at both ends in the serial direction X of the outer link plate 14 so as to pass through in the thickness direction of the outer link plate 14, that is, in the width direction Y. .
- a cylindrical pin 20 having an outer diameter slightly smaller than the inner diameter of the bush 17 is inserted into each pin insertion hole 21.
- each pin 20 corresponds to the pair of outer link plates 14 whose outer ends are inserted into the bushes 17 between the pair of inner link plates 12 of the inner link 13 at both ends thereof.
- the pin insertion hole 21 is fitted. Therefore, both end portions of each pin 20 pass through the pair of outer link plates 14, and the inner link plates 12 of the two inner links 13 adjacent in the series direction X are a pair of outer link plates of one outer link 15. 14 pins 20 and bushes 17 are rotatably connected.
- a cylindrical solid lubricant 22 is disposed between the inner peripheral surface 17 b of the bush 17 and the outer peripheral surface 20 a of the pin 20, and the bush 17 and the pin 20 are rotated relative to each other by the solid lubricant 22. Is lubricated.
- the chain 11 is made of steel.
- the absorbent 19 can absorb liquid, but even the powdered solid lubricant 22 is made of a material that can be sealed.
- a material that can be sealed.
- the size of the gap changes. It is preferable to use a material that has such elasticity that it can follow the surface, and even if there is a break in a part, the break is difficult to spread to other parts.
- examples of the material constituting the absorbent 19 include felt, nonwoven fabric, and sponge. These materials can absorb liquid by capillary action, and in this embodiment, felt is used as the material constituting the absorbent material 19.
- the absorbent 19 absorbs and holds a liquid lubricant such as grease.
- the inner peripheral surface 19a of the absorbent 19 contacts the outer peripheral surface 17c of the protrusion 17a of the bush 17, the inner side 19b of the absorbent 19 contacts the outer side 12a of the inner link plate 12, and the outer side 19c of the absorbent 19 Is in contact with the inner side surface 14 a of the outer link plate 14.
- the absorbent material 19 is in a compressed state between the outer side surface 12 a of the inner link plate 12 and the inner side surface 14 a of the outer link plate 14. Therefore, when the solid lubricant 22 leaks from between the inner peripheral surface 17b of the bush 17 and the outer peripheral surface 20a of the pin 20, the absorbent 19 seals the solid lubricant 22.
- the chain 11 of the present embodiment can be used in an environment where dust such as cement and coal drifts. However, once the chain 11 is used in such an environment, the solid lubricant 22 cannot be additionally replenished later.
- the inner link plate 12 and the outer link plate 14 rotate relatively.
- the absorbent material 19 since the outer link plate 14 and the absorbent material 19 slide with each other, and the inner link plate 12 and the absorbent material 19 slide with each other, the absorbent material 19 may be worn and damaged.
- the absorbent material 19 disposed between the inner link plate 12 and the outer link plate 14 is made of felt, even if a part of the absorbent material 19 is broken and a cut is made. , The break is difficult to spread to other parts. Therefore, the absorbent 19 is hard to cut and difficult to drop off, so that its sealing function is maintained for a long period of time.
- the absorbent 19 prevents the solid lubricant 22 from leaking from between the inner peripheral surface 17b of the bush 17 and the outer peripheral surface 20a of the pin 20 to the outside of the chain 11 for a long period of time. Similarly, it is also suppressed by the absorbent 19 over a long period of time that external dust enters between the inner peripheral surface 17 b of the bush 17 and the outer peripheral surface 20 a of the pin 20 from the outside of the chain 11.
- the absorbent 19 absorbs and holds the liquid lubricant, and the inner peripheral surface 19 a is in contact with the outer peripheral surface 17 c of the protruding portion 17 a of the bush 17. For this reason, the liquid lubricant held by the absorbent 19 gradually moves from the gap between the end surface 17d of the bush 17 and the inner side surface 14a of the outer link plate 14 during use of the chain 11 to the inner periphery of the bush 17. It is supplied between the surface 17 b and the outer peripheral surface 20 a of the pin 20. Therefore, the space between the inner peripheral surface 17b of the bush 17 and the outer peripheral surface 20a of the pin 20 is effectively lubricated by both the solid lubricant 22 and the liquid lubricant.
- the solid lubricant 22 between the pin 20 and the bush 17 is sealed by the absorbent 19 made of felt. And even if a part cuts, the absorber 19 is hard to tear compared with the conventional O-ring, and since it is hard to drop
- the interval holding portion that holds the interval between the outer side surface 12 a of the inner link plate 12 and the inner side surface 14 a of the outer link plate 14 is a protruding portion that protrudes outside the pair of inner link plates 12 at both ends of the bush 17. 17a.
- the interval holding part is constituted by a protruding part 17 a that is a part of the bush 17. For this reason, the space
- the absorber 19 is in contact with the outer side surface 12a of the inner link plate 12 and the inner side surface 14a of the outer link plate 14 in a state of surrounding the outer periphery of the projecting portion 17a of the bush 17. For this reason, it is effective that the solid lubricant 22 between the pin 20 and the bush 17 leaks to the outside of the chain 11 from between the outer side surface 12 a of the inner link plate 12 and the inner side surface 14 a of the outer link plate 14. Can be suppressed.
- the absorbent 19 is made of felt, the volume can be increased as compared with a conventional O-ring.
- the absorbent material 19 is made of felt, even when the absorbent material 19 is bitten by other members during the assembly of the chain 11, the biting damage in the absorbent material 19 when the chain 11 is used. Is difficult to spread to other parts. For this reason, the assembly property of the chain 11 can be improved.
- the absorbent material 19 is composed of a conventional O-ring
- the biting damage in the O-ring immediately spreads when the chain 11 is used. O-ring falls off early. For this reason, when the chain 11 is assembled, it is necessary to pay close attention so that the O-ring is not caught, and the assemblability of the chain 11 is deteriorated.
- the protrusion 17 a of the bush 17 is omitted, and the outer surface 12 a of the inner link plate 12 and the inner surface 14 a of the outer link plate 14 are surrounded by the outer periphery of the absorbent 19.
- An annular spacer 31 that is in contact with each other may be disposed as an interval holding portion. If it does in this way, the absorber 19 can be hold
- the absorbent material 19 is not necessarily required to absorb and hold the liquid lubricant.
- the roller 18 may be omitted.
- the chain 11 may be a so-called offset type chain. In that case, a plurality of links curved so that the width of one end portion in the series direction X of the two opposing link plates is narrower than the width of the other end portion are rotatably connected by the bush 17 and the pin 20. .
- the chain 11 may be made of synthetic resin.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chain Conveyers (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
Description
この構成によれば、ピンとブシュとの間に、吸収材が保持している液体潤滑剤が供給されるので、これらの潤滑性を向上させることが可能となる。
前記吸収材は、前記突出部の外周を囲んだ状態で前記内リンクプレートの外側面及び前記外リンクプレートの内側面に接触していることが好ましい。
前記突出部と前記吸収材との間に、前記突出部の外周を囲んだ状態で前記内リンクプレートの外側面及び前記外リンクプレートの内側面に接触するOリングが配置されていることが好ましい。
図1及び図2に示すように、チェーン11は複数の内リンク13と、複数の外リンク15とを備えている。各内リンク13は幅方向Yに沿って互いに対向して配置される一対の内リンクプレート12を有している。各外リンク15は、一対の内リンクプレート12を幅方向Yに沿って外側から挟むように配置される一対の外リンクプレート14を有している。
図1及び図2に示すように、吸収材19は液体を吸収可能であるが、粉状の固体潤滑剤22であっても、シールすることが可能な材料によって構成されている。このような材料としては、チェーン11の使用時に内リンクプレート12の外側面12aと外リンクプレート14の内側面14aとの間の隙間の大きさが変化しても、当該隙間の大きさの変化に追従可能な程度の弾力性を有し、且つ一部に切れ目が入っても、その切れ目が他の部位に広がり難いものを用いることが好ましい。
(1)ピン20とブシュ17との間の固体潤滑剤22は、フェルトによって構成された吸収材19によってシールされている。そして、吸収材19は、一部が切れても従来のOリングに比べて裂けにくく、脱落しにくいので、従来のOリングよりも長期間にわたってシール機能を維持することができる。したがって、ピン20とブシュ17との間の固体潤滑剤22が外部へ漏れ出すこと及びピン20とブシュ17との間に外部から異物が進入することを、従来よりも長期間にわたって抑制することができる。よって、チェーン11は、セメントや石炭などの粉塵が漂う環境下、すなわち後から固体潤滑剤22を追加で補充することができない環境下で好適に使用することができる。
(7)吸収材19は、フェルトによって構成されているため、チェーン11の組み立て時に他の部材による吸収材19の噛み込みが発生した場合でも、チェーン11の使用時に吸収材19における噛み込みの傷が他の部位に波及しにくい。このため、チェーン11の組立性を向上することができる。因みに、吸収材19を従来のOリングで構成した場合には、組み立て時に他の部材によるOリングの噛み込みが発生すると、チェーン11の使用時にOリングにおける噛み込みの傷がすぐに広がって、Oリングが早期に脱落してしまう。このため、チェーン11の組み立て時に、Oリングが噛み込まないように細心の注意を払う必要があり、チェーン11の組立性が低下する。
なお、上記実施形態は次のように変更してもよい。
・図3に示す第1変形例のように、ブシュ17の突出部17aと吸収材19との間に、突出部17aの外周を囲んだ状態で内リンクプレート12の外側面12a及び外リンクプレート14の内側面14aに接触するOリング30を配置するようにしてもよい。このようにすれば、固体潤滑剤22に対するシール性能を向上することができる。また、Oリング30は切れた場合でも吸収材19によって保持されるので、Oリング30が脱落することを抑制できる。
・ローラ18は省略してもよい。
・チェーン11は、所謂オフセットタイプのチェーンであってもよい。その場合、対向する2つのリンクプレートの直列方向Xにおける一端部の幅を他端部の幅よりも狭くなるように湾曲した複数のリンクが、ブシュ17及びピン20によって回動可能に連結される。
Claims (5)
- 互いに対向かつ離間して配置される一対の内リンクプレートと、
前記一対の内リンクプレートにそれぞれ接合される両端部を備えた筒状のブシュと、
前記ブシュに挿入されるピンと、
前記ブシュと前記ピンとの間に配置される固体潤滑剤と、
前記一対の内リンクプレートを外側から挟むように配置され、前記ピンの両端部がそれぞれ貫通する一対の外リンクプレートと、
前記内リンクプレートの外側面と前記外リンクプレートの内側面との間隔を保持する間隔保持部と、
前記内リンクプレートの外側面と前記外リンクプレートの内側面との間に配置され、前記固体潤滑剤をシールするとともに液体を吸収可能な吸収材と
を備えたチェーン。 - 前記吸収材は、液体潤滑剤を吸収して保持していることを特徴とする請求項1に記載のチェーン。
- 前記ブシュの両端部は、前記一対の内リンクプレートを貫通して前記一対の内リンクプレートの外側にそれぞれ突出しており、
前記間隔保持部は、前記ブシュの両端部において、前記一対の内リンクプレートの外側に突出した突出部によって構成されていることを特徴とする請求項1または請求項2に記載のチェーン。 - 前記吸収材は、前記突出部の外周を囲んだ状態で前記内リンクプレートの外側面及び前記外リンクプレートの内側面に接触していることを特徴とする請求項3に記載のチェーン。
- 前記突出部と前記吸収材との間に、前記突出部の外周を囲んだ状態で前記内リンクプレートの外側面及び前記外リンクプレートの内側面に接触するOリングが配置されていることを特徴とする請求項4に記載のチェーン。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/328,573 US9964179B2 (en) | 2014-08-29 | 2015-07-17 | Chain |
DE112015003939.2T DE112015003939B4 (de) | 2014-08-29 | 2015-07-17 | Kette |
CN201580044722.XA CN106662210B (zh) | 2014-08-29 | 2015-07-17 | 链条 |
AU2015307709A AU2015307709B2 (en) | 2014-08-29 | 2015-07-17 | Chain |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014175053A JP6227507B2 (ja) | 2014-08-29 | 2014-08-29 | チェーン |
JP2014-175053 | 2014-08-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016031428A1 true WO2016031428A1 (ja) | 2016-03-03 |
Family
ID=55399329
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2015/070607 WO2016031428A1 (ja) | 2014-08-29 | 2015-07-17 | チェーン |
Country Status (7)
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US (1) | US9964179B2 (ja) |
JP (1) | JP6227507B2 (ja) |
CN (1) | CN106662210B (ja) |
AU (1) | AU2015307709B2 (ja) |
DE (1) | DE112015003939B4 (ja) |
TW (1) | TWI589800B (ja) |
WO (1) | WO2016031428A1 (ja) |
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CA2796665C (en) * | 2010-05-04 | 2016-11-08 | Chapman/Leonard Studio Equipment, Inc. | Camera head |
US9939045B2 (en) * | 2016-07-15 | 2018-04-10 | Shimano Inc. | Link plates for bicycle chain |
JP7170390B2 (ja) * | 2017-12-18 | 2022-11-14 | 大同工業株式会社 | ノンシールローラチェーン |
TWM585852U (zh) * | 2019-07-17 | 2019-11-01 | 岳盟企業股份有限公司 | 油封鏈條 |
JP7529961B2 (ja) * | 2019-09-18 | 2024-08-07 | 株式会社椿本チエイン | チェーン伝動システム |
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- 2015-07-17 DE DE112015003939.2T patent/DE112015003939B4/de active Active
- 2015-07-17 AU AU2015307709A patent/AU2015307709B2/en active Active
- 2015-07-17 CN CN201580044722.XA patent/CN106662210B/zh active Active
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JPH11351338A (ja) * | 1998-06-12 | 1999-12-24 | Tsubakimoto Chain Co | 潤滑油の保持に優れたチェーン |
JP2002139106A (ja) * | 2000-10-31 | 2002-05-17 | Tsubakimoto Chain Co | シールチェーン |
JP2002295600A (ja) * | 2001-03-29 | 2002-10-09 | Ntn Corp | チェーンブッシュ、チェーン用連結ピンおよびチェーン |
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Publication number | Publication date |
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JP2016050600A (ja) | 2016-04-11 |
US20170211660A1 (en) | 2017-07-27 |
TWI589800B (zh) | 2017-07-01 |
DE112015003939T5 (de) | 2017-05-11 |
US9964179B2 (en) | 2018-05-08 |
CN106662210B (zh) | 2019-07-23 |
TW201612436A (en) | 2016-04-01 |
CN106662210A (zh) | 2017-05-10 |
AU2015307709B2 (en) | 2018-06-14 |
JP6227507B2 (ja) | 2017-11-08 |
AU2015307709A1 (en) | 2017-02-09 |
DE112015003939B4 (de) | 2022-07-28 |
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