JPH1137151A - Multistage bearing unit - Google Patents

Multistage bearing unit

Info

Publication number
JPH1137151A
JPH1137151A JP19596097A JP19596097A JPH1137151A JP H1137151 A JPH1137151 A JP H1137151A JP 19596097 A JP19596097 A JP 19596097A JP 19596097 A JP19596097 A JP 19596097A JP H1137151 A JPH1137151 A JP H1137151A
Authority
JP
Japan
Prior art keywords
frame
intermediate wheel
bearing
quartet
stage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
JP19596097A
Other languages
Japanese (ja)
Inventor
Shigeji Matsuyama
茂司 松山
Hiroyuki Kodama
博之 小玉
Kazunao Dejima
一直 出島
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTN Corp
Mitsubishi Heavy Industries Ltd
Original Assignee
NTN Corp
Mitsubishi Heavy Industries Ltd
NTN Toyo Bearing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NTN Corp, Mitsubishi Heavy Industries Ltd, NTN Toyo Bearing Co Ltd filed Critical NTN Corp
Priority to JP19596097A priority Critical patent/JPH1137151A/en
Publication of JPH1137151A publication Critical patent/JPH1137151A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/54—Systems consisting of a plurality of bearings with rolling friction
    • F16C19/55—Systems consisting of a plurality of bearings with rolling friction with intermediate floating or independently-driven rings rotating at reduced speed or with other differential ball or roller bearings
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/02—Bearings
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
    • F16C23/10—Bearings, parts of which are eccentrically adjustable with respect to each other

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Support Of The Bearing (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

PROBLEM TO BE SOLVED: To smoothly rotate an eccentric wheel for adjustment in time of a change of programming, even if a slight clearance change occurs by a temperature rise. SOLUTION: The shaft 11 of a rotator 10 is composed in a three-stage in radial direction and, the two intermediate wheels 32 and 33 are supported on a frame 13 on the circumference with a quartet race bearing 30 which is an eccentric wheel different in wall thickness. In this constitution, a rolling part is formed in a gap between the frame 13 and the intermediate wheels 32 and 33 or the eccentric wheel of the quartet race bearing 30 adjusting the rotation.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、例えば印刷機にお
いて、ブランケット胴を回転自在に支持する多段軸受装
置の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a multi-stage bearing device for rotatably supporting a blanket cylinder, for example, in a printing press.

【０００２】[0002]

【従来の技術】この種の多段軸受装置は、図３および図
４に示すように、ブランケット胴１０をその軸部１１に
てラジアル方向に２段重ねの軸受構造をとるトリプルレ
ース軸受２０で支持するようにしている。トリプルレー
ス軸受２０は、ブランケット胴１０の軸部１１に嵌着さ
れ、外径面に軌道を有する一対の内輪２１，２１と、該
一対の内輪２１，２１に外挿され、内径面と外径面に夫
々複列の軌道を有する中間輪２２と、該中間輪２２に外
挿され、内径面に軌道を有する一対の外輪２３，２３
と、一対の内輪２１，２１と中間輪２２の軌道間に組み
込まれた複列の転動体（例えば円すいころ）２４，２４
と、中間輪２２と一対の外輪２３，２３の軌道間に組み
込まれた複列の転動体（例えば円すいころ）２５，２５
からなり、偏心外環１２を介してフレーム１３内に組み
込まれている。中間輪２２は、円周上で肉厚の異なる偏
心輪が使用され、連結された脱着用レバー１４によりブ
ランケット胴１０の軸部１１に対して回動される。偏心
外環１２には、調整用ギア機構１５が連結され、該調整
用ギア機構１５によりフレーム１３に対して回動され
る。2. Description of the Related Art In a multi-stage bearing device of this type, as shown in FIGS. 3 and 4, a blanket cylinder 10 is supported at its shaft portion 11 by a triple race bearing 20 having a two-stage radially stacked bearing structure. I am trying to do it. The triple race bearing 20 is fitted to the shaft portion 11 of the blanket cylinder 10 and has a pair of inner rings 21 and 21 having orbits on the outer diameter surface, and is externally inserted into the pair of inner rings 21 and 21 to form an inner diameter surface and an outer diameter. An intermediate wheel 22 having a plurality of rows of raceways on its surface, and a pair of outer races 23, 23 extrapolated to the intermediate wheel 22 and having a raceway on the inner diameter surface
And double-row rolling elements (for example, tapered rollers) 24, 24 incorporated between the tracks of the pair of inner rings 21, 21 and the intermediate wheel 22.
And double-row rolling elements (for example, tapered rollers) 25, 25 incorporated between the tracks of the intermediate wheel 22 and the pair of outer rings 23, 23.
And is incorporated into the frame 13 via the eccentric outer ring 12. As the intermediate wheel 22, an eccentric wheel having a different thickness on the circumference is used, and the intermediate wheel 22 is rotated with respect to the shaft portion 11 of the blanket cylinder 10 by the detachable lever 14 connected thereto. An adjusting gear mechanism 15 is connected to the eccentric outer ring 12, and is rotated with respect to the frame 13 by the adjusting gear mechanism 15.

【０００３】そして、上記多段軸受装置は、中間輪２２
を着脱用レバー１４によりブランケット胴１０の軸部１
１に対して回動することにより、ブランケット胴１０の
版胴１６に対する着脱が行なわれる。また、偏心外環１
２を調整用ギア機構１５によりフレーム１３に対して回
動することにより、段取り替え時の芯出し、ギア１７，
１８の当り等の調整が行なわれる。[0003] The above-mentioned multi-stage bearing device includes an intermediate wheel 22.
The shaft 1 of the blanket cylinder 10 is
By rotating the blanket cylinder 10, the blanket cylinder 10 is attached to and detached from the plate cylinder 16. Also, eccentric outer ring 1
2 is rotated with respect to the frame 13 by the adjusting gear mechanism 15, so that the centering at the time of the setup change, the gear 17,
Adjustment such as hitting 18 is performed.

【０００４】[0004]

【発明が解決しようとする課題】上記多段軸受装置にお
いては、上述したように、偏心外環１２を調整用ギア機
構１５によりフレーム１３に対して回動することによ
り、段取り替え時の芯出し、ギア１７，１８の当り等を
調整するようにしていた。しかし、運転が行なわれた後
では、トリプルレース軸受２０の発熱が偏心外環１２に
伝わり、該偏心外環１２の熱膨張によってフレーム１３
との間のスキマが減少するため、偏心外環１２がフレー
ム１３に対してスムーズに回動できなくなってしまう場
合がある。そのため、発熱防止用に循環するオイルを冷
却しておく必要がある。In the above-mentioned multi-stage bearing device, as described above, the eccentric outer ring 12 is rotated with respect to the frame 13 by the adjusting gear mechanism 15 so that the centering at the time of setup change can be performed. The contact of the gears 17 and 18 is adjusted. However, after the operation is performed, the heat generated by the triple race bearing 20 is transmitted to the eccentric outer ring 12, and the thermal expansion of the eccentric outer ring 12 causes the frame 13 to expand.
, The eccentric outer ring 12 may not be able to rotate smoothly with respect to the frame 13 in some cases. Therefore, it is necessary to cool the circulating oil to prevent heat generation.

【０００５】そこで、本発明の目的とするところは、温
度上昇による多少のスキマ変化が生じても、段取り替え
時の調整を行なわせる偏心輪をスムーズに回動させるよ
うにした多段軸受装置を提供することにある。Accordingly, an object of the present invention is to provide a multi-stage bearing device in which an eccentric wheel for performing adjustment during setup change is smoothly rotated even if a slight gap change occurs due to a temperature rise. Is to do.

【０００６】[0006]

【課題を解決するための手段】前述した目的を達成する
ため、本発明は、回転体の軸部を、ラジアル方向に３段
重ねの軸受構造をとり、かつ、その２つの中間輪が円周
上で肉厚が異なる偏心輪であるカルテットレース軸受で
フレームに支持し、フレームと回転調整を行う上記カル
テットレース軸受の偏心輪である中間輪との間に転がり
部を形成したものである。SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides a rotary member having a three-stage bearing structure in which a shaft portion of a rotating body is radially stacked, and two intermediate wheels of which are circumferentially arranged. The above is supported on a frame by a quartet race bearing, which is an eccentric ring having a different thickness, and a rolling portion is formed between the frame and an intermediate wheel, which is an eccentric ring of the quartet race bearing for performing rotation adjustment.

【０００７】また、本発明は、印刷機のブランケット胴
をその軸部にてラジアル方向に３段重ねの軸受構造をと
るカルテットレース軸受でフレームに支持し、該カルテ
ットレース軸受の２つの中間輪を円周上で肉厚が異なる
偏心輪とし、その１つの中間輪に着脱用レバーを連結す
るとともに、別の１つの中間輪に回転調整用機構を連結
したものである。Further, according to the present invention, a blanket cylinder of a printing machine is supported on a frame by a quartet race bearing having a three-stage bearing structure in a radial direction at a shaft portion thereof, and two intermediate wheels of the quartet race bearing are supported. An eccentric wheel having a different thickness on the circumference is connected to a detachable lever to one intermediate wheel, and a rotation adjusting mechanism is connected to another intermediate wheel.

【０００８】本発明によれば、フレームと回転調整を行
わせる軸受の中間輪との間にころがり部を形成すること
により、温度上昇による多少のスキマ変化が生じても、
偏心輪である中間輪をフレームに対してロックさせるこ
となくスムーズに回動することができる。According to the present invention, by forming a rolling portion between the frame and the intermediate wheel of the bearing for performing the rotation adjustment, even if a slight gap change occurs due to a temperature rise,
The intermediate wheel, which is an eccentric wheel, can be smoothly rotated without being locked to the frame.

【０００９】[0009]

【発明の実施の形態】以下、本発明の実施の形態を図面
に基づき説明する。Embodiments of the present invention will be described below with reference to the drawings.

【００１０】図１および図２は、本発明に係る多段軸受
装置の好ましい実施の形態を示しており、ブランケット
胴１０をその軸部１１にてラジアル方向に３段重ねの軸
受構造をとるカルテットレース軸受３０で支持するよう
にしている。カルテットレース軸受３０は、ブランケッ
ト胴１０の軸部１１に嵌着され、外径面に軌道を有する
一対の内輪３１，３１と、該一対の内輪３１，３１に外
挿され、内径面と外径面に夫々複列の軌道を有する内側
中間輪３２と、該内側中間輪３２に外挿され、内径面に
複列の軌道を有し、かつ、外径面に単列の軌道を有する
外側中間輪３３と、該外側中間輪３３に外挿され、内径
面に軌道を有する外輪３４と、一対の内輪３１，３１と
内側中間輪３２の軌道間に組み込まれた複列の転動体
（例えば円すいころ）３５，３５と、内側中間輪３２と
外側中間輪３３の軌道間に組み込まれた複列の転動体
（例えば針状ころ）３６，３６と、外側中間輪３３と外
輪３４の軌道間に組み込まれた複数の転動体（例えば円
筒ころ）３７とからなり、フレーム１３の円筒孔に外輪
３４を嵌着させてフレーム１３内に組み込まれている。
内側中間輪３２は、円周上で肉厚の異なる偏心輪が使用
され、連結された着脱用レバー１４によりブランケット
胴１０の軸部１１に対して回動される。外側中間輪３３
は、内側中間輪３２と同様に円周上で肉厚の異なる偏心
輪が使用され、連結された調整用ギア機構１５によりフ
レーム１３に対して回動される。FIGS. 1 and 2 show a preferred embodiment of a multi-stage bearing device according to the present invention. The quartet race has a three-stage bearing structure in which a blanket cylinder 10 is radially superposed on a shaft portion 11 thereof. It is supported by a bearing 30. The quartet race bearing 30 is fitted to the shaft portion 11 of the blanket cylinder 10 and has a pair of inner races 31 having a raceway on the outer diameter surface, and is externally inserted into the pair of inner races 31 to form an inner diameter surface and an outer diameter. An inner intermediate wheel 32 having a double row of tracks on its surface, an outer intermediate wheel extrapolated to the inner intermediate wheel 32, having a double row of tracks on its inner diameter surface, and having a single row of tracks on its outer diameter surface A ring 33, an outer ring 34 extrapolated to the outer intermediate wheel 33 and having a track on the inner diameter surface, and a double row of rolling elements (for example, a cone) incorporated between the tracks of the pair of inner rings 31 and 31 and the inner intermediate wheel 32 Rollers) 35, 35, double-row rolling elements (for example, needle rollers) 36, 36 incorporated between the tracks of the inner intermediate wheel 32 and the outer intermediate wheel 33, and between the tracks of the outer intermediate wheel 33 and the outer ring 34. A plurality of rolling elements (for example, cylindrical rollers) 37 incorporated therein; 3 of the cylinder hole of the outer ring 34 is fitted are incorporated in the frame 13.
As the inner intermediate wheel 32, an eccentric ring having a different wall thickness on the circumference is used, and is rotated with respect to the shaft portion 11 of the blanket cylinder 10 by the detachable lever 14 connected thereto. Outer middle wheel 33
An eccentric wheel having a different wall thickness on the circumference is used similarly to the inner intermediate wheel 32, and is rotated with respect to the frame 13 by the connected adjustment gear mechanism 15.

【００１１】そして、本発明に係る多段軸受装置は、内
側中間輪３２を着脱用レバー１４によりブランケット胴
１０の軸部１１に対して回動させることにより、ブラン
ケット胴１０の版胴１６に対する着脱が行なわれる。ま
た、外側中間輪３３を調整用ギア機構１５によりフレー
ム１３に対して回動させることにより、段取り替え時の
芯出し、ギア１７，１８の当り等の調整が行なわれる。In the multi-stage bearing device according to the present invention, the inner intermediate wheel 32 is rotated with respect to the shaft portion 11 of the blanket cylinder 10 by the attachment / detachment lever 14 so that the blanket cylinder 10 can be attached to and detached from the plate cylinder 16. Done. In addition, by rotating the outer intermediate wheel 33 with respect to the frame 13 by the adjusting gear mechanism 15, the centering at the time of setup change and the adjustment of the contact of the gears 17 and 18 are performed.

【００１２】このように、本発明に係る多段軸受装置
は、フレーム１３と段取り替え時の芯出し、ギア１７，
１８の当り等の調整を行なわせるための外側中間輪３３
の間に複数の転動体３７を介在し、外側中間輪３３を複
数の転動体３７を介してフレーム１３に対して回動させ
るようにしている。そのため、運転による温度上昇によ
って多少のスキマ変化が生じても、外側中間輪３３は複
数の転動体３７によりフレーム１３に対してスムーズに
回動し、外側中間輪３３がフレーム１３に対してロック
されるおそれがない。As described above, the multi-stage bearing device according to the present invention provides the centering at the time of setup change with the frame 13, the gear 17,
Outer intermediate wheel 33 for adjusting the hit of 18
A plurality of rolling elements 37 are interposed therebetween, and the outer intermediate wheel 33 is rotated with respect to the frame 13 via the plurality of rolling elements 37. Therefore, even if a slight gap occurs due to a temperature rise due to operation, the outer intermediate wheel 33 is smoothly rotated with respect to the frame 13 by the plurality of rolling elements 37, and the outer intermediate wheel 33 is locked with respect to the frame 13. There is no danger.

【００１３】上記実施の形態では、カルテットレース軸
受３０は内側から複列円すいころ軸受、複列針状ころ軸
受および円筒ころ軸受をラジアル方向に３段重ねとした
軸受構造をとるが、本発明はこれに限定されることな
く、使用条件やスペース等に応じて他種の転がり軸受や
すべり軸受に置き換えることも可能である。In the above embodiment, the quartet race bearing 30 has a bearing structure in which double-row tapered roller bearings, double-row needle roller bearings, and cylindrical roller bearings are stacked in three stages in the radial direction from the inside. Without being limited to this, it is also possible to replace it with another type of rolling bearing or plain bearing according to the use conditions, space, and the like.

【００１４】[0014]

【発明の効果】以上説明したように、本発明によれば、
フレームと段取り替え時の調整を行なわせる偏心輪の間
にころがり軸受部を介在したことにより、温度上昇によ
る多少のスキマ変化が生じても、偏心輪がフレームに対
してロックされるおそれがない。そのため、段取り替え
前の冷却時間が不要となり、印刷作業の能率向上に寄与
する。As described above, according to the present invention,
Since the rolling bearing portion is interposed between the frame and the eccentric wheel for performing the adjustment at the time of the setup change, there is no possibility that the eccentric wheel is locked to the frame even if a slight gap change occurs due to a temperature rise. Therefore, the cooling time before the setup change is not required, which contributes to the improvement of the efficiency of the printing operation.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の実施の形態を示す要部断面図である。FIG. 1 is a sectional view of a main part showing an embodiment of the present invention.

【図２】図１の要部側面図である。FIG. 2 is a side view of a main part of FIG.

【図３】従来の多段軸受装置を示す要部断面図である。FIG. 3 is a sectional view of a main part showing a conventional multi-stage bearing device.

【図４】図３の要部側面図である。FIG. 4 is a side view of a main part of FIG. 3;

【符号の説明】[Explanation of symbols]

１０ ブランケット胴 １１ 軸部 １３ フレーム １４ 着脱用レバー １５ 調整用ギア機構 １６ 版胴 １７ ギア １８ ギア ３０ カルテットレース軸受 ３１ 内輪 ３２ 内側中間輪 ３３ 外側中間輪 ３４ 外輪 ３５ 転動体 ３６ 転動体 ３７ 転動体 DESCRIPTION OF SYMBOLS 10 Blanket cylinder 11 Shaft part 13 Frame 14 Detachment lever 15 Adjustment gear mechanism 16 Plate cylinder 17 Gear 18 Gear 30 Quartet race bearing 31 Inner ring 32 Inner intermediate wheel 33 Outer intermediate wheel 34 Outer ring 35 Rolling element 36 Rolling element 37 Rolling element

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 回転体の軸部を、ラジアル方向に３段重
ねの軸受構造をとり、かつ、その２つの中間輪が円周上
で肉厚が異なる偏心輪であるカルテットレース軸受でフ
レームに支持し、フレームと回転調整を行う上記カルテ
ットレース軸受の偏心輪である中間輪との間に転がり部
を形成したことを特徴とする多段軸受装置。1. A quartet race bearing in which a shaft portion of a rotating body has a three-stage radially stacked bearing structure, and two intermediate wheels of which are eccentric rings having different thicknesses on a circumference. A multi-stage bearing device, wherein a rolling portion is formed between an intermediate wheel, which is an eccentric ring of the quartet race bearing that supports and adjusts rotation of the frame. 【請求項２】 印刷機のブランケット胴をその軸部にて
ラジアル方向に３段重ねの軸受構造をとるカルテットレ
ース軸受でフレームに支持し、該カルテットレース軸受
の２つの中間輪を円周上で肉厚が異なる偏心輪とし、そ
の１つの中間輪に着脱用レバーを連結するとともに、別
の１つの中間輪に回転調整用機構を連結したことを特徴
とする多段軸受装置。2. A blanket cylinder of a printing press is supported on a frame by a quartet race bearing having a three-stage bearing structure in a radial direction at a shaft portion thereof, and two intermediate wheels of the quartet race bearing are circumferentially arranged. A multi-stage bearing device comprising eccentric rings having different wall thicknesses, a detachable lever connected to one intermediate wheel, and a rotation adjusting mechanism connected to another intermediate wheel.
JP19596097A 1997-07-22 1997-07-22 Multistage bearing unit Withdrawn JPH1137151A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19596097A JPH1137151A (en) 1997-07-22 1997-07-22 Multistage bearing unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19596097A JPH1137151A (en) 1997-07-22 1997-07-22 Multistage bearing unit

Publications (1)

Publication Number Publication Date
JPH1137151A true JPH1137151A (en) 1999-02-09

Family

ID=16349856

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19596097A Withdrawn JPH1137151A (en) 1997-07-22 1997-07-22 Multistage bearing unit

Country Status (1)

Country Link
JP (1) JPH1137151A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004035587A1 (en) * 2004-07-22 2006-02-09 Ina-Schaeffler Kg Bearing has three rings, between which ball bearings or rollers are mounted, rings having bevel gear toothing on their faces
WO2008104433A2 (en) * 2007-02-27 2008-09-04 Schaeffler Kg Multi-ring eccentric rolling bearing, in particular for the rolling support of the main cylinder in printing presses
CN103042363A (en) * 2012-12-18 2013-04-17 潍坊鑫陆轴承有限公司 Method for manufacturing eccentric bearing

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004035587A1 (en) * 2004-07-22 2006-02-09 Ina-Schaeffler Kg Bearing has three rings, between which ball bearings or rollers are mounted, rings having bevel gear toothing on their faces
WO2008104433A2 (en) * 2007-02-27 2008-09-04 Schaeffler Kg Multi-ring eccentric rolling bearing, in particular for the rolling support of the main cylinder in printing presses
WO2008104433A3 (en) * 2007-02-27 2008-11-27 Schaeffler Kg Multi-ring eccentric rolling bearing, in particular for the rolling support of the main cylinder in printing presses
CN103042363A (en) * 2012-12-18 2013-04-17 潍坊鑫陆轴承有限公司 Method for manufacturing eccentric bearing

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