JPH06297589A - Roll made of carbon fiber reinforced plastics - Google Patents

Abstract

PURPOSE:To obtain a lightweight inexpensive roll low in rotary inertial force and having long life by forming the outer periphery of an aluminum cylindrical body from a membrane layer made of fiber reinforced plastics and winding carbon fiber reinforced plastic around the outer peripheral part of the membrane layer. CONSTITUTION:An aluminum different diameter pipe body having an integrated structure with a total length of 2350mm and characterized by both end parts thereof having an outer diameter of 78mm and a length of 175mm and the central part 8 thereof has an outer diameter 222mm and a length of 1600mm and the taper parts thereof having a length of 200mm and a thickness of 1.5mm is used as the innermost layer. A glass fiber fabric impregnated with a resin having a thickness of 0.1mm is wound around the outer surface of the pipe body and a pitch type carbon fiber impregnated with a resin is further wound around the outer surface of the fabric layer by a filament winding method and all of the winding layers are cured to form a CFPP pipe body 1 having such a structure that the taper parts 2 and small diameter parts 3 thereof gradually become thick with the reduction of a diameter.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、フィラメントワインデ
ィング法（以下単にＦＷ法とする）等により製作され
る、炭素繊維強化プラスチックス製ロール（以下単にＣ
ＦＲＰロールとする）に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll made of carbon fiber reinforced plastics (hereinafter simply referred to as C) produced by a filament winding method (hereinafter simply referred to as FW method) or the like.
FRP roll).

【０００２】[0002]

【従来の技術】従来、ＦＷ法等による繊維強化プラスチ
ックス製管体のロールにおいては、管体の成形は、例え
ばパイプ状の長尺円筒体のマンドレルを使用して成形さ
れ、硬化後切断してマンドレルを脱芯する方法がとられ
ていた。従って成形され硬化脱芯した後の管体は、少な
くとも一端部の内径が管体部の全ての内径よりは等しい
か、それより大きくなり、例えばパイプ状の円筒体の構
造よりなる。この管体を切削加工して両端部の内面に金
属製ジャーナル部と一体的に形成してなる円筒状金物を
装着接合してロールを形成していた。しかるに、ロール
端部の金属製ジャーナル部を管体に装着接合する際に、
充分な接合強度を保ち装着接合するために、金属面とＣ
ＦＲＰ管体の接着面積を大きく確保する必要がある。2. Description of the Related Art Conventionally, in a roll of a fiber reinforced plastic tube made by the FW method or the like, the tube is formed by using, for example, a pipe-shaped long cylindrical mandrel, and is cut after curing. The method of decoreing the mandrel was taken. Therefore, the tubular body after being molded and cured and decoreed has an inner diameter of at least one end equal to or larger than all the inner diameters of the tubular portion, and has, for example, a pipe-shaped cylindrical structure. A cylindrical metal piece integrally formed with metal journal parts was attached to the inner surfaces of both ends of the tubular body by cutting to form a roll. However, when mounting and joining the metal journal at the end of the roll to the tube,
In order to attach and join while maintaining sufficient joining strength, C
It is necessary to secure a large bonding area for the FRP pipe body.

【０００３】従って、管端金物形状はジャーナル部と一
体構造であり、且つ管端に内接する円筒状もしくは円柱
状等の外径寸法も大きく、長さも比較的長いＣＦＲＰと
の嵌合構造物を要する。又、設備的制約条件等のため、
ロールの有効胴長に比べ、ロール軸受スパーンが、特に
長く必要とされるロールに至っては、従来構造ではロー
ル胴長を必要以上に長くするか、もしくは管端金物長を
長くする必要がある。このように従来のロール構造では
ＣＦＲＰロールの軽量化も管体のみの軽量化効果に限ら
れ、管端部の取付け金物は、従来の金属製金物に比べ却
って重量アップになる例が多く、従ってロール全体の重
量もその低減効果が大きく制約されていた。Therefore, a pipe end metal fitting has a structure integral with a journal portion, and a fitting structure with CFRP having a large outer diameter such as a cylindrical shape or a column shape inscribed in the pipe end and a relatively long length. It costs. Also, due to equipment constraints, etc.
When the roll bearing span is required to be particularly long compared to the effective barrel length of the roll, it is necessary to lengthen the roll barrel length more than necessary or to lengthen the pipe end metal length in the conventional structure. As described above, in the conventional roll structure, the weight reduction of the CFRP roll is limited to the weight reduction effect of only the tube body, and the attachment hardware of the tube end portion is often increased in weight as compared with the conventional metal hardware, The effect of reducing the weight of the entire roll was also greatly limited.

【０００４】[0004]

【発明が解決しようとする課題】本発明の目的は、この
ような欠点を解消し、軽量で回転慣性力の低い、且つ管
体と管端金物の接合の信頼性も高く、且つ低コストで長
寿命のロールを提供することにある。SUMMARY OF THE INVENTION The object of the present invention is to solve the above drawbacks, to provide a lightweight and low rotational inertia force, a highly reliable joint between a pipe and a pipe end piece, and a low cost. It is to provide a long-life roll.

【０００５】[0005]

【課題を解決するための手段】本発明は上記課題を達成
するためになされたものであって、その要旨とするとこ
ろは、両端部に端部に向かって円錐状に漸次外径が小径
化しているテーパー部を有する炭素繊維強化プラスチッ
クス製ロールにおいて、両端部に円錐状のテーパーを持
つアルミニューム製筒体と、該アルミニューム製筒体の
外周を包み込むように非導電性繊維からなる繊維強化プ
ラスチックス製薄膜層で形成し、更にその外周部を一体
構造からなる炭素繊維強化プラスチックス製筒体を巻き
込んだ構造で形成し、その両端部の内面に非導電性繊維
からなる繊維強化プラスチックス製薄膜層を介してジャ
ーナル金物部を有し、これと一体構造を有する円筒状も
しくは円柱状の金属製の嵌合構造物からなる軸端金物を
取り付けてなる炭素繊維強化プラスチックス製ロールに
ある。The present invention has been made in order to achieve the above-mentioned object, and the gist of the present invention is that the outer diameter is gradually reduced conically at both ends toward the ends. In a roll made of carbon fiber reinforced plastics having a tapered portion, a cylinder made of aluminum having conical taper at both ends, and a fiber made of non-conductive fiber so as to wrap around the outer circumference of the cylinder made of aluminum. A fiber reinforced plastic made of a reinforced plastic thin film layer, the outer periphery of which is made of a carbon fiber reinforced plastic tubular body with an integral structure, and non-conductive fibers on the inner surfaces of both ends. Charcoal having a journal metal part through a thin film layer made of stainless steel and having a shaft end metal part made of a cylindrical or cylindrical metal fitting structure having an integral structure with the journal metal part. In the fiber-reinforced plastics made roll.

【０００６】以下、本発明を施工例を中心に詳細に説明
する。図１は本発明における炭素繊維強化プラスチック
製ロールの実施例の組立断面図を示す。図２は同図１の
部分拡大断面図を示す。１は樹脂を含浸させた炭素繊維
からなるＣＦＲＰの管体、２はＣＦＲＰ管体の円錐テー
パー部、３は管端部金物を内接して接合、固持するＣＦ
ＲＰ管体の小径部を示す。両端部が小径化された一体構
造のＣＦＲＰ管体を成形し、硬化させるためには、従来
法の脱芯可能なマンドレルの使用は不可能である。従っ
て本発明では従来のマンドレルに替わるものとして、予
め薄肉のアルミニュームをＣＦＲＰ管体の内面にサイズ
に合わせて外面を成形加工し、その上に例えば４，５，
６，７等の樹脂を含浸したガラス繊維を巻き付け非導電
性薄膜層を形成し、更にその外周部を１，２，３等の樹
脂を含浸した一炭素繊維を、例えばＦＷ法等で巻き込み
成形して硬化し、内部に包含したアルミニューム８，９
もロールを構成する強度部材の一部として使用するもの
である。The present invention will be described in detail below, focusing on construction examples. FIG. 1 shows an assembled sectional view of an embodiment of a carbon fiber reinforced plastic roll according to the present invention. FIG. 2 shows a partially enlarged sectional view of FIG. Reference numeral 1 is a CFRP tubular body made of carbon fiber impregnated with resin, 2 is a conical taper portion of the CFRP tubular body, and 3 is a CF for inscribing and adhering and fixing metal objects at the pipe end portion.
The small diameter part of the RP tube is shown. In order to mold and cure an integrally structured CFRP tube whose both ends have a small diameter, it is impossible to use a conventional mandrel capable of core removal. Therefore, in the present invention, as an alternative to the conventional mandrel, a thin aluminum is preliminarily formed on the inner surface of the CFRP tube in accordance with the size and the outer surface is formed, and then, for example, 4, 5, or 5.
A non-conductive thin film layer is formed by winding glass fibers impregnated with a resin such as 6,7, and the outer peripheral portion of the carbon fiber is impregnated with a resin such as 1,2,3 by FW method or the like. And hardened and contained aluminum 8, 9
Is also used as a part of the strength member constituting the roll.

【０００７】但し、両管端部の小径部内側で成形後容易
に機械加工等で切削除去可能な部位のアルミニューム部
は小径部３と軸端金物１０の接合の信頼性アップのため
除去する。１，２，３のＣＦＲＰ管体は導電性の炭素繊
維を使用していることから、８及び９のアルミニューム
や１０，１２の軸端金物等、及びピン１９等の金属体と
の直接的接触部があると、長期間にわたる使用の結果、
イオン化傾向の電位差からその部位に電気的浸食腐食が
発生する。However, the aluminum portion, which is a portion which can be easily removed by machining after molding on the inside of the small diameter portion of both pipe ends, is removed for improving the reliability of the joining of the small diameter portion 3 and the shaft end metal 10. . Since the CFRP pipes 1, 2 and 3 use conductive carbon fibers, they are directly connected to the aluminum 8 and 9 and the shaft end metal fittings 10 and 12 and the metal body such as the pin 19. If there is a contact part, as a result of long-term use,
Due to the potential difference of the ionization tendency, electrical erosion corrosion occurs at that site.

【０００８】４，５，６の非導電性薄膜層はその絶縁機
能を満足し、且つそれを維持するために必要な機械的強
度を満足する材料と、厚みが必要であり、例えばＣＦＲ
Ｐ管体と同じ種類の樹脂を含浸したガラス繊維、又はガ
ラス繊維布等を使用し、厚みは約０．１mm程度とする。
軸端金物１０とＣＦＲＰ３との接合例には接着材を併用
した圧入方法が効果的で、更にはＣＦＲＰ３と軸端金物
１０に貫通孔を設け、金属ピン１９を打ち込み接合の信
頼性を上げる方法等がある。更に内部のガス抜き用とし
て軸端にガス抜き穴１３の加工を施すことが有用なケー
スが多い。The non-conductive thin film layers 4, 5 and 6 must have a material and a thickness that satisfy the insulating function and the mechanical strength required to maintain the insulating function, for example, CFR.
Glass fiber impregnated with the same type of resin as the P tube or glass fiber cloth is used, and the thickness is about 0.1 mm.
A press-fitting method in which an adhesive is also used is effective for an example of joining the shaft end metal 10 and the CFRP 3, and further, a method of forming a through hole in the CFRP 3 and the shaft end metal 10 and driving a metal pin 19 to improve the reliability of the bonding. Etc. Further, it is often useful to form a gas vent hole 13 at the shaft end for venting the internal gas.

【０００９】[0009]

【実施例】最内層に、両端部の外径が、それぞれ７８m
m、長さ１７５mm、中央部外径が２２２mm、長さ１６０
０mm、テーパー部長さがそれぞれ２００mmであり、厚み
が１．５mmからなる全長２３５０mmの一体構造のアルミ
ニューム製異径管体を使用し、その外面に厚み０．１mm
の樹脂を含浸したガラス繊維布を巻き付け、更にその外
面を樹脂を含浸したピッチ系炭素繊維をフィラメントワ
インディング法により巻き付け硬化させた構造で、ＣＦ
ＲＰ管体厚みはテーパー部、及び小径部においては小径
化に伴って漸次厚肉化構造となるように構成し、強度補
償を行った構造で製作し、両端の小径部は内面を加工
し、アルミニュームを切削除去したのち鉄製で製作加工
した３５mmの外径を持つジャーナル部１１と一体構造で
他端が８０mm、長さ約１８０mmの外径を持ち、更に軽量
化のため、内径６０mmで深さ１５０mmの空洞部１４を有
し、軸端に空気抜き孔１３を有する円筒状構造を有する
軸受金物１０を使用し、その外側を樹脂を含浸したガラ
ス繊維を巻き付け非導電性薄膜層６として、挿入接合
し、更にこれを外径切削加工し、更に最外層にゴムライ
ニング１６，１７，１８を施したロールを製作し、タワ
ミ剛性も鉄製、及びアルミニューム製に遜色がなく従来
品の鉄製の約１／５の総重量からなるロールを完成する
ことができた。[Example] The outermost diameter of each end is 78 m in the innermost layer.
m, length 175 mm, central outer diameter 222 mm, length 160
0mm, the length of the taper part is 200mm, the thickness is 1.5mm, and the total length of 2350mm is an integral structure of different diameter aluminum tube.
The resin-impregnated glass fiber cloth is wound, and the resin-impregnated pitch-based carbon fiber is wound by the filament winding method and cured.
The thickness of the RP pipe body is gradually increased in the taper portion and the small diameter portion as the diameter is reduced, and the strength is compensated for.The inner surface of the small diameter portion is machined. It has an outer diameter of 80mm at the other end and an outer diameter of about 180mm at the other end, which is made of iron after the aluminum is cut and removed and has an outer diameter of 35mm. A bearing metal fitting 10 having a hollow structure 14 having a length of 150 mm and a cylindrical structure having an air vent hole 13 at the shaft end is used, and the outside thereof is wrapped with a glass fiber impregnated with a resin to be inserted as a non-conductive thin film layer 6. Bonded, further outer diameter cut, and further made rubber linings 16, 17, and 18 on the outermost layer to make rolls, and the deflection rigidity is made of iron, and aluminum is comparable to that of conventional products. 1/5 total weight We were able to complete a roll consisting of quantities.

【００１０】[0010]

【発明の効果】本発明によれば、従来ＣＦＲＰロールに
おいて軽量化を大きく阻害していたロール軸端金物の金
属部分を大幅に縮少化でき、軽量化が可能となった。更
に金属部とＣＦＲＰの接合位置を、軸の至近距離に近づ
けることが可能となり、従って接合部に働くロール荷重
等による曲げモーメントを大幅に低減することが可能と
なることから、ＣＦＲＰと軸端金物の信頼性の高い接合
強度を保ち、又ＣＦＲＰと金属の電気的浸食腐食を効果
的に抑制し、軽量で信頼性の高い長寿命ロールを供給す
ることができた。According to the present invention, the metal portion of the roll shaft end metal, which has largely hindered the weight reduction of the conventional CFRP roll, can be greatly reduced, and the weight reduction can be achieved. Furthermore, the joint position between the metal part and CFRP can be brought closer to the closest distance of the shaft, and therefore the bending moment due to the roll load acting on the joint part can be greatly reduced. It was possible to maintain a highly reliable joint strength, effectively suppress the electrical erosion and corrosion of CFRP and metal, and supply a lightweight and highly reliable long-life roll.

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

【図１】炭素繊維強化プラスチックス製ロールの実施例
の組立断面図。FIG. 1 is an assembled sectional view of an embodiment of a roll made of carbon fiber reinforced plastics.

【図２】炭素繊維強化プラスチックス製ロールの管体と
軸端金物の部分拡大断面図を示す。FIG. 2 shows a partially enlarged cross-sectional view of a tubular body of a carbon fiber reinforced plastic roll and a shaft end metal piece.

【符号の説明】[Explanation of symbols]

１ ＣＦＲＰの管体 ２ ＣＦＲＰ管体の円錐テーパー部 ３ ＣＦＲＰ管体の小径部 ４ 非導電性薄膜層 ５ 非導電性薄膜層のテーパー部 ６ 非導電性薄膜層の小径部 ７ 非導電性薄膜層の管端部 ８ アルミニューム筒体の中央部 ９ アルミニューム筒体のテーパー部 １０ 軸端金物 １１ ジャーナル金物 １２ 軸端金物の鍔部 １３ 軸端金物のガス抜き穴 １４ 軸端金物の空洞部 １５ 軸受 １６，１７，１８ ロール管体最外層のライニングゴム １９ ＣＦＲＰ管体と軸端金物の貫通ピン ２０ 駆動力伝達用軸端金物 1 CFRP tube 2 Conical taper part of CFRP tube 3 Small diameter part of CFRP tube 4 Non-conductive thin film layer 5 Tapered part of non-conductive thin film layer 6 Small diameter part of non-conductive thin film layer 7 Non-conductive thin film layer Pipe end part 8 Aluminum metal cylinder central part 9 Aluminum cylinder cylindrical taper part 10 Shaft end metal fitting 11 Journal metal fitting 12 Shaft end metal fitting flange portion 13 Shaft end metal fitting vent hole 14 Shaft end metal fitting cavity 15 Bearing 16, 17, 18 Lining rubber of outermost layer of roll tube 19 CFRP tube and penetrating pin of shaft end hardware 20 Shaft end hardware for driving force transmission

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 両端部に端部に向かって円錐状に漸次外
径が小径化しているテーパー部を有する炭素繊維強化プ
ラスチックス製ロールにおいて、両端部に円錐状のテー
パーを持つアルミニューム製筒体と、該アルミニューム
製筒体の外周を包み込むように非導電性繊維からなる繊
維強化プラスチックス製薄膜層で形成し、更にその外周
部を一体構造からなる炭素繊維強化プラスチックス製筒
体を巻き込んだ構造で形成し、その両端部の内面に非導
電性繊維からなる繊維強化プラスチックス製薄膜層を介
してジャーナル金物部を有し、これと一体構造を有する
円筒状もしくは円柱状の金属製の嵌合構造物からなる軸
端金物を取り付けてなる炭素繊維強化プラスチックス製
ロール。1. A roll made of carbon fiber reinforced plastics, which has taper portions on both ends of which the outer diameter is gradually reduced toward the end in a conical shape, and an aluminum cylinder having conical taper on both ends. A carbon fiber reinforced plastics tubular body having a body and a thin film layer of fiber reinforced plastics made of non-conductive fiber so as to wrap the outer circumference of the aluminum tubular body It is formed in a rolled-up structure, and has a metal shell of a cylinder or a cylinder having an integral structure with a journal metal part on the inner surface of both ends through a thin film layer made of non-conductive fiber made of fiber reinforced plastics. Rolls made of carbon fiber reinforced plastics attached with shaft end metal parts made of the fitting structure of.