JP2590629Y2 - Expander roll device - Google Patents
Expander roll deviceInfo
- Publication number
- JP2590629Y2 JP2590629Y2 JP1992058987U JP5898792U JP2590629Y2 JP 2590629 Y2 JP2590629 Y2 JP 2590629Y2 JP 1992058987 U JP1992058987 U JP 1992058987U JP 5898792 U JP5898792 U JP 5898792U JP 2590629 Y2 JP2590629 Y2 JP 2590629Y2
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- fixed shaft
- straight cylindrical
- cylindrical portion
- flexible hollow
- 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.)
- Expired - Fee Related
Links
Landscapes
- Paper (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、エキスパンダロール装
置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an expander roll device.
【０００２】[0002]
【従来の技術】製紙工程においては、紙の皺を取るため
にエキスパンダロール装置が用いられている。而して、
従来のエキスパンダロール装置は図３及び図４に示さ
れ、図中、ａは外形加工した真直ぐな軸を塑性曲げして
アーチ状に形成した固定軸、ｂは固定軸ａの長手方向へ
所要の間隔で外嵌された軸受、ｃは各軸受ｂに外嵌され
た短筒状の回転子、ｄは各回転子ｃに外嵌されたゴム状
の可撓中空筒状体、ｅは軸受ｂ，ｂ間及び軸長手方向の
両端外側に位置するよう固定軸ａに外嵌され且つキーｆ
を介し固定軸ａに固定されたスペーサ、ｇは固定軸ａの
両端を支持するブラケット、ｈは可撓中空筒状体ｄの凸
側外周に巻き掛けられた帯状の紙である。2. Description of the Related Art In a paper making process, an expander roll device is used to remove wrinkles of paper. Thus,
A conventional expander roll device is shown in FIGS. 3 and 4, wherein a is a fixed shaft formed by plastically bending an externally machined straight shaft into an arch shape, and b is required in the longitudinal direction of the fixed shaft a. , C is a short cylindrical rotor externally fitted to each bearing b, d is a rubber-like flexible hollow cylindrical body externally fitted to each rotor c, and e is a bearing b, and fitted on the fixed shaft a so as to be located outside both ends in the longitudinal direction of the shaft and the key f
, A bracket fixed to the fixed shaft a at both ends and a bracket h supporting both ends of the fixed shaft a, and h a band-shaped paper wound around the convex outer periphery of the flexible hollow cylindrical body d.
【０００３】斯かるエキスパンダロール装置において
は、運転時には可撓中空筒状体ｄは、紙ｈの張力により
回転させられるか、高速の設備では長手方向の一端側に
連結した図示しない駆動装置により回転させられ、紙ｈ
の皺取りが行われる。可撓中空筒状体ｄが回転する際に
は軸受ｂの外輪も高速回転する。In such an expander roll device, during operation, the flexible hollow cylindrical body d is rotated by the tension of the paper h, or in a high-speed facility, a driving device (not shown) connected to one end in the longitudinal direction is used. Rotated paper h
Is performed. When the flexible hollow cylindrical body d rotates, the outer ring of the bearing b also rotates at high speed.
【０００４】[0004]
【考案が解決しようとする課題】しかしながら、上述の
エキスパンダロール装置にあっては、組み込み時には、
外周がアーチ状に曲っている固定軸ａに対して軸受ｂを
嵌合しなければならないため、軸受ｂ内周と固定軸ａ外
周の隙間ｉは比較的大きくする必要があり、又組み込ん
だ状態では、図４のポイントｊに示すように、固定軸ａ
と軸受ｂは点接触となり、軸受ｂの固定軸ａに対する支
持状態は不安定となる。[Problems to be solved by the invention] However, in the above-mentioned expander roll device,
Since the bearing b must be fitted to the fixed shaft a whose outer periphery is bent in an arch shape, the gap i between the inner periphery of the bearing b and the outer periphery of the fixed shaft a needs to be relatively large, Now, as shown at point j in FIG.
And the bearing b are in point contact, and the support state of the bearing b with respect to the fixed shaft a becomes unstable.
【０００５】このため、可撓中空筒状体ｄが高速回転す
ると、軸受ｂは振動すると共に軸受ｂの内輪は固定軸ａ
に対し円周方向へ滑って発熱を生じ、軸受ｂの寿命の低
下や可撓中空筒状体ｄの捩れ損傷が生じるという問題が
ある。Therefore, when the flexible hollow cylindrical body d rotates at high speed, the bearing b vibrates and the inner ring of the bearing b is fixed to the fixed shaft a.
However, there is a problem that heat is generated by sliding in the circumferential direction, and the life of the bearing b is shortened and the flexible hollow cylindrical body d is damaged by torsion.
【０００６】本考案は、前述の実情に鑑み、組み込まれ
た軸受内周と固定軸外周との間の隙間を減少させること
により、軸受の寿命の長期化を図ると共に可撓中空筒状
体の捩れ損傷を防止することを目的としてなしたもので
ある。In view of the above-mentioned circumstances, the present invention reduces the gap between the built-in inner periphery of the bearing and the fixed shaft outer periphery, thereby extending the life of the bearing and increasing the length of the flexible hollow cylindrical body. The purpose is to prevent torsional damage.
【０００７】[0007]
【課題を解決するための手段】本考案は、長手方向へ所
要の間隔で複数の真直状円筒部が形成され且つ真直状円
筒部間の部分の外径が真直状円筒部の外径よりも小径
の、全体としてアーチ状に曲げ加工された固定軸を設
け、該固定軸の前記真直状円筒部に外嵌した軸受に回転
子を外嵌し、該回転子に、全ての回転子が一体に連結さ
れるごとく可撓中空筒状体を外嵌したものである。According to the present invention, a plurality of straight cylindrical portions are formed at required intervals in the longitudinal direction, and an outer diameter of a portion between the straight cylindrical portions is larger than an outer diameter of the straight cylindrical portion. A fixed shaft having a small diameter and bent into an arch shape as a whole is provided, and a rotor is externally fitted to a bearing externally fitted to the straight cylindrical portion of the fixed shaft, and all the rotors are integrated with the rotor. The flexible hollow cylindrical body is externally fitted so as to be connected to the above.
【０００８】[0008]
【作用】凸側の外周に帯状の紙が巻き掛けられた可撓中
空筒状体が高速回転することにより紙の皺取りが行われ
るが、軸受は固定軸の真直状円筒部に外嵌されているた
め、軸受と固定軸との間の隙間を小さくでき、軸受は固
定軸に安定して支持される結果、軸受の振動や円周方向
への滑りが生じない。又、固定軸は全体としてアーチ状
に加工されているため、孤高量を大きく取ることができ
る。更に軸受の内径を固定軸の真直状円筒部に対して適
正な大きさにできるため、軸受外径、延いては可撓中空
筒状体の外径が大きくならず、しかも軸受を固定するた
めに軸方向へ大きな圧縮荷重を掛ける必要がなく、従っ
て全体的に小型化を図ることができる。 The flexible hollow cylindrical body around which the belt-shaped paper is wound around the outer periphery on the convex side rotates at a high speed to remove wrinkles from the paper, but the bearing is fitted around the straight cylindrical portion of the fixed shaft. Therefore, the clearance between the bearing and the fixed shaft can be reduced, and the bearing is stably supported by the fixed shaft. As a result, vibration of the bearing and slippage in the circumferential direction do not occur. In addition, since the fixed shaft is processed into an arch shape as a whole, a large amount of lone can be taken. In addition, adjust the inner diameter of the bearing to the straight cylindrical portion of the fixed shaft.
Because it can be made to be a positive size, the outer diameter of the bearing, and hence the flexible hollow
The outer diameter of the cylindrical body does not increase and the bearing
It is not necessary to apply a large compressive load in the axial direction to
Thus, the overall size can be reduced.
【０００９】[0009]
【実施例】以下、本考案の実施例を添付図面に基いて説
明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the accompanying drawings.
【００１０】図１及び図２は本考案の一実施例である。FIGS. 1 and 2 show an embodiment of the present invention.
【００１１】図中、１は塑性曲げアーチ状に形成され且
つ両端をブラケット２により回転しないよう支持された
固定軸であり、該固定軸１には、長手方向へ所要の間隔
で、軸線ｌが真直ぐな複数の真直状円筒部１ａが形成さ
れている。該真直状円筒部１ａの外径Ｄ1は該真直状円
筒部１ａの軸線方向Ｘ両端に連なるアーチ状円筒部１ｂ
の外径Ｄ2よりも若干大きく形成されている。In the drawing, reference numeral 1 denotes a fixed shaft formed in a plastic bending arch shape and having both ends supported by a bracket 2 so as not to rotate. The fixed shaft 1 has an axis l at a required interval in the longitudinal direction. A plurality of straight cylindrical portions 1a are formed. It said vacuum outer diameter D 1 of the straight cylindrical portion 1a is connected to the axial direction X across the said vacuum straight cylindrical portion 1a arcuate cylindrical portion 1b
It is slightly larger than the outer diameter D 2.
【００１２】固定軸１の各真直状円筒部１ａには夫々軸
受３が外嵌され、各軸受３には夫々、短筒状の回転子４
が、隣り合う回転子４との間に若干の隙間６が形成され
るよう外嵌されており、回転子４には、例えばゴムのご
とく柔軟な可撓中空筒状体５が全ての回転子４を一体的
に連結するかのごとく外嵌されている。A bearing 3 is fitted on each straight cylindrical portion 1a of the fixed shaft 1, and a short cylindrical rotor 4 is fitted on each bearing 3.
Are fitted so that a slight gap 6 is formed between the rotors 4 adjacent to each other. 4 are fitted as if they were integrally connected.
【００１３】各軸受３，３間及び固定軸１の両端に位置
する軸受３の固定軸１長手方向外方には、固定軸１に外
嵌された状態でスペーサ７，８が取付けられ、スペーサ
７の両端及びスペーサ８の軸受３側端部は軸受３の内輪
と接触し、軸受３が固定軸１の長手方向へ移動しないよ
うになっている。又スペーサ７，８は、図示してないが
キーや止めねじにより固定軸１に対し固定されている。Spacers 7 and 8 are mounted on the fixed shaft 1 outside the longitudinal direction of the fixed shaft 1 between the bearings 3 and 3 and at both ends of the fixed shaft 1. Both ends of the spacer 7 and the end of the spacer 8 on the bearing 3 side are in contact with the inner race of the bearing 3 so that the bearing 3 does not move in the longitudinal direction of the fixed shaft 1. Although not shown, the spacers 7 and 8 are fixed to the fixed shaft 1 by keys or set screws.
【００１４】なお、図中、９は可撓中空筒状体５の凸側
外周に巻き掛けられた帯状の紙である。In FIG. 1, reference numeral 9 denotes a belt-shaped paper wound around the outer periphery of the flexible hollow cylindrical body 5 on the convex side.
【００１５】上記エキスパンダロール装置にあっては、
広幅、高速の設備では、可撓中空筒状体５は、長手方向
の一端に連結した図示しない駆動装置により高速で回転
させられ、巻き掛けられている紙９を後工程へ送給する
と共に、紙９には、可撓中空筒状体５を介して張力が付
与され、皺取りが行われる。可撓中空筒状体５が高速回
転する際には、軸受３の外輪も高速回転する。In the above expander roll device,
In a wide-width, high-speed facility, the flexible hollow cylindrical body 5 is rotated at a high speed by a driving device (not shown) connected to one end in the longitudinal direction, and feeds the wound paper 9 to a subsequent process. Tension is applied to the paper 9 via the flexible hollow cylindrical body 5 to perform wrinkle removal. When the flexible hollow cylindrical body 5 rotates at a high speed, the outer ring of the bearing 3 also rotates at a high speed.
【００１６】軸受３は固定軸１の真直状円筒部１ａに外
嵌され、軸受３の内周と真直状円筒部１ａの外周との間
の隙間は、通常の軸と軸受の嵌め合いのように極く僅か
にすることができる。このため軸受３の内輪は真直状円
筒部１ａに対し面接触となり、軸受３は固定軸１に対し
安定して支持される。従って、可撓中空筒状体５や軸受
３の外輪が高速回転しても、軸受３には隙間に基づく振
動や軸受３の内輪の固定軸１円周方向への滑りによる発
熱が生じず、軸受３の寿命が延びる。又軸受３の内輪が
円周方向へ滑らないため、可撓中空筒状体５に捩れ損傷
が生じることがない。The bearing 3 is externally fitted to the straight cylindrical portion 1a of the fixed shaft 1. The gap between the inner periphery of the bearing 3 and the outer periphery of the straight cylindrical portion 1a is similar to that of a normal shaft and bearing. Can be very slight. Therefore, the inner ring of the bearing 3 comes into surface contact with the straight cylindrical portion 1a, and the bearing 3 is stably supported on the fixed shaft 1. Therefore, even if the flexible hollow cylindrical body 5 and the outer ring of the bearing 3 rotate at high speed, the bearing 3 does not generate vibration due to the gap or heat generation due to the inner ring of the bearing 3 sliding in the circumferential direction of the fixed shaft 1, The life of the bearing 3 is extended. Further, since the inner ring of the bearing 3 does not slide in the circumferential direction, the flexible hollow cylindrical body 5 is not twisted and damaged.
【００１７】なお、本考案の実施例においては真直状円
筒部の外径の小さな部分をアーチ状円筒にする場合につ
いて説明したが、この部分も真直状円筒とし、全体とし
て直線が多面形状に折曲げられた、アーチ形状に近似し
た形状としても良いこと、真直状円筒部及びアーチ状円
筒部の径を固定軸の軸線方向中央側で大径と軸線方向両
端部へ行くにつれて順次小径にするようにしても実施で
きること、その他、本考案の要旨を逸脱しない範囲内で
種々変更を加え得ること等は勿論である。In the embodiment of the present invention, the case where the portion having a small outer diameter of the straight cylindrical portion is formed into an arch-shaped cylinder has been described, but this portion is also formed as a straight cylinder, and as a whole, the straight line is folded into a polyhedral shape. It may be bent, and may have a shape similar to the arch shape.The diameters of the straight cylindrical portion and the arched cylindrical portion are gradually reduced to a large diameter at the axially central side of the fixed shaft and to gradually decrease toward both ends in the axial direction. However, it is needless to say that various changes can be made without departing from the scope of the present invention.
【００１８】[0018]
【考案の効果】本考案のエキスパンダロール装置によれ
ば、軸受の振動や発熱を防止できるため軸受の寿命が延
び、又軸受が固定軸の円周方向へ滑ることがなくなるた
め、可撓中空筒状体の捩れ損傷を防止することができ、
又固定軸は全体としてアーチ状に加工されているため、
孤高量を大きく取ることができ、更に軸受の内径を固定
軸の真直状円筒部に対して適正な大きさにできるため、
軸受外径、延いては可撓中空筒状体の外径が大きくなら
ず、しかも軸受を固定するために軸方向へ大きな圧縮荷
重を掛ける必要がなく、従って全体的に小型化を図るこ
とができる、等種々の優れた効果を奏し得る。 According to the expander roll device of the present invention, the vibration and heat generation of the bearing can be prevented to extend the life of the bearing, and the bearing does not slide in the circumferential direction of the fixed shaft. The torsion of the tubular body can be prevented,
Also, since the fixed shaft is processed into an arch shape as a whole,
A large amount of isolation can be taken, and the inner diameter of the bearing is fixed
Because it can be made the appropriate size for the straight cylindrical part of the shaft,
If the outer diameter of the bearing, and thus the outer diameter of the flexible hollow cylindrical body, is large,
And a large axial load to fix the bearing
There is no need to apply weight, so overall miniaturization can be achieved.
And various other excellent effects.
【図１】本考案のエキスパンダロール装置の一実施例の
断面図である。FIG. 1 is a sectional view of an embodiment of an expander roll device of the present invention.
【図２】図１の軸受の部分の拡大断面図である。FIG. 2 is an enlarged sectional view of a part of the bearing of FIG. 1;
【図３】従来のエキスパンダロール装置の一例の断面図
である。FIG. 3 is a cross-sectional view of an example of a conventional expander roll device.
【図４】図３の軸受の部分の拡大断面図である。FIG. 4 is an enlarged sectional view of a part of the bearing of FIG. 3;
１ 固定軸 １ａ 真直状円筒部 １ｂ アーチ状円筒部（真直状円筒部間の部分） ３ 軸受 ４ 回転子 ５ 可撓中空筒状体 Ｄ1，Ｄ2 外径1 (portions between the straight-shaped cylindrical portion) fixed shaft 1a straight shaped cylindrical portion 1b arcuate cylindrical portion 3 bearing 4 rotor 5 flexible hollow tubular body D 1, D 2 the outer diameter
Claims (1)
筒部が形成され且つ真直状円筒部間の部分の外径が真直
状円筒部の外径よりも小径の、全体としてアーチ状に曲
げ加工された固定軸を設け、該固定軸の前記真直状円筒
部に外嵌した軸受に回転子を外嵌し、該回転子に、全て
の回転子が一体に連結されるごとく可撓中空筒状体を外
嵌したことを特徴とするエキスパンダロール装置。A plurality of straight cylindrical portions are formed at predetermined intervals in a longitudinal direction, and an outer diameter of a portion between the straight cylindrical portions is smaller than an outer diameter of the straight cylindrical portion, and as a whole an arch shape. A bent fixed shaft is provided, a rotor is externally fitted to a bearing externally fitted to the straight cylindrical portion of the fixed shaft, and a flexible hollow is formed so that all the rotors are integrally connected to the rotor. An expander roll device wherein a tubular body is externally fitted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992058987U JP2590629Y2 (en) | 1992-07-30 | 1992-07-30 | Expander roll device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992058987U JP2590629Y2 (en) | 1992-07-30 | 1992-07-30 | Expander roll device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0616499U JPH0616499U (en) | 1994-03-04 |
| JP2590629Y2 true JP2590629Y2 (en) | 1999-02-17 |
Family
ID=13100201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1992058987U Expired - Fee Related JP2590629Y2 (en) | 1992-07-30 | 1992-07-30 | Expander roll device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2590629Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4929222A (en) * | 1972-07-17 | 1974-03-15 |
-
1992
- 1992-07-30 JP JP1992058987U patent/JP2590629Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0616499U (en) | 1994-03-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |