JPH0270309A - Forging roll - Google Patents
Forging rollInfo
- Publication number
- JPH0270309A JPH0270309A JP22312288A JP22312288A JPH0270309A JP H0270309 A JPH0270309 A JP H0270309A JP 22312288 A JP22312288 A JP 22312288A JP 22312288 A JP22312288 A JP 22312288A JP H0270309 A JPH0270309 A JP H0270309A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- forged
- drive connection
- steel ingot
- connection part
- 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.)
- Pending
Links
- 238000005242 forging Methods 0.000 title claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims description 6
- 238000005266 casting Methods 0.000 abstract description 6
- 238000003754 machining Methods 0.000 abstract description 4
- 238000009751 slip forming Methods 0.000 abstract 1
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 239000000835 fiber Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、ロールの駆動連結部の機械的性質を向上させ
た鍛造ロールに関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a forged roll with improved mechanical properties of the drive connection of the roll.
（従来の技術）
圧延用ａ−ルの成形方法には、鋳造手段による方法と鍛
造手段による方法の大略二方法があり、ロールの使用目
的あるいは使用条件等によりそれぞれ適宜選択採用され
ている。鍛造手段によって成形された鍛造ロールにおい
ては、鍛造による鍛錬効果として、鋳塊凝固組織の微細
化、鋼塊鋳造時の空隙欠陥の改善などが得られる他、鍛
錬によってロール軸方向に沿って所謂繊維状組織が形成
されるため、軸方向での機械的性質の著しい向上が得ら
れる。(Prior Art) There are roughly two methods for forming a roll for rolling: a method using casting means and a method using forging means, and each method is selected and adopted as appropriate depending on the purpose of use of the roll, usage conditions, etc. In a forged roll formed by a forging method, the forging effects include refinement of the solidified ingot structure and improvement of void defects during steel ingot casting, as well as the formation of so-called fibers along the roll axis direction. Due to the formation of a similar structure, the mechanical properties in the axial direction are significantly improved.
第３図はこのような鍛造ロールを示したもので、ロール
胴部１０の両端に軸受部１１．１１が延設され、該軸受
部１１．１１の画先端部に駆動連結部１２．１２が連設
されている。前記各部から構成された鍛造ロールは、一
体のロール材用鋼塊から鍛造手段によって一体的に成形
されたものである。FIG. 3 shows such a forged roll, in which bearing portions 11.11 extend from both ends of the roll body 10, and a drive connection portion 12.12 is provided at the front end of the bearing portion 11.11. They are installed consecutively. The forged roll made up of the above-mentioned parts is integrally formed from a single roll material steel ingot by forging means.
前記駆動連結部１２．１２は、第４図に示すように、外
部の駆動装置の駆動軸に、カップリング１５を介して連
結される部分で、凹部１３．１３．１３．１３と山部１
４．１４．１４．１４が交互に形成されている。そして
、凹部１３，１３．１３．１３に係合したカップリング
１５の凸部１６．１６．１６．１６を介して、駆動軸の
回転駆動力がロール駆動連結部１２．１２に伝達される
。As shown in FIG. 4, the drive connection part 12.12 is a part connected to the drive shaft of an external drive device via a coupling 15, and includes a recess 13.13.13.13 and a peak 1.
4.14.14.14 are formed alternately. The rotational driving force of the drive shaft is then transmitted to the roll drive coupling part 12.12 via the convex part 16.16.16.16 of the coupling 15 engaged with the concave part 13, 13.13.13.
（発明が解決しようとする課題）
上述のように、カップリング１５の凸部１６．１６，１
６゜１６を介してロール駆動連結部１２．１２に伝達さ
れる駆動力は、図中矢印に示すように駆動連結部山部１
４、１４．１４．１４に接線方向の力として働く。一方
鍛造によって軸方向に形成された繊維状組織によって、
軸方向の機械的強度が高められるが、軸に直角な方向の
機械的強度は低くなる。このため前記駆動連結部山部１
４，１４，１４．１４において、接線方向に働く駆動力
によって、該山部１４，１４．１４．１４が欠損し易い
という問題があった。(Problem to be Solved by the Invention) As described above, the convex portions 16, 16, 1 of the coupling 15
The driving force transmitted to the roll drive connection part 12.12 through the drive connection part peak 12.
4, 14.14.14 acts as a tangential force. On the other hand, due to the fibrous structure formed in the axial direction by forging,
The mechanical strength in the axial direction is increased, but the mechanical strength in the direction perpendicular to the axis is reduced. For this reason, the drive connection portion mountain portion 1
4, 14, 14.14, there was a problem in that the peak portions 14, 14.14.14 were easily damaged by the driving force acting in the tangential direction.
本発明はこのような問題点に鑑みてなされたもので、ロ
ール駆動連結部の接線方向の機械的強度を向上し、駆動
連結部山部に欠損が発生しない鍛造ロールを提供するこ
とを目的とする。The present invention has been made in view of these problems, and an object of the present invention is to provide a forged roll that improves the mechanical strength of the roll drive connection portion in the tangential direction and does not cause damage to the peak portion of the drive connection portion. do.
（課題を解決するための手段）
上記の目的を達成するために成された本発明は、ロール
胴部１の両）商に軸受部２ａ、２ｂが延設され、該軸受
部２ａ、２ｂの一方または両方の先端に駆動連結部３が
連設された一体ロールにおいて、前記胴部１および駆動
連結部３が連設されていない側の軸受部２ｂはロール材
用鋼塊６から鍛造によって形成され、前記駆動連結部３
は前記鋼塊６の未鍛造部分により形成され、駆動連結部
３が連設されている側の軸受部２ａは胴部側と駆動連結
部側とが前記鋼塊６の鍛造部分と未鍛造部分とによって
連成されていることを発明の構成としている。(Means for Solving the Problems) The present invention, which has been made to achieve the above object, includes bearing parts 2a and 2b extending from both sides of the roll body 1, and the bearing parts 2a and 2b extending from each other. In an integral roll in which a driving connection part 3 is connected to one or both tips, the bearing part 2b on the side where the body part 1 and the driving connection part 3 are not connected is formed by forging from a steel ingot 6 for roll material. and said drive connection part 3
is formed by the unforged part of the steel ingot 6, and the bearing part 2a on the side where the drive connection part 3 is connected has a body part side and a drive connection part side that are formed by the forged part and the unforged part of the steel ingot 6. The structure of the invention is that the invention is coupled with the following.
（作 用）
本発明の鍛造ロールにおいては、ロール駆動連結部３が
鋳造手段によって形成されているので、軸方向繊維組織
は存在せず、山部１４における接線方向の機械的強度が
向上する。(Function) In the forged roll of the present invention, since the roll drive connection portion 3 is formed by casting means, there is no axial fiber structure, and the mechanical strength in the tangential direction of the peak portion 14 is improved.
（実施例） 本発明の実施例について図面を参照して説明する。(Example) Embodiments of the present invention will be described with reference to the drawings.
第１図は実施例に係る鍛造ロールを示す、該鍛造ロール
は、ロール胴部ｌの両端に軸受部２ａ、２ｂが延設され
、該軸受部２ａ、２ｈの一方の先端に駆動連結部３が連
設されている。該駆動連結部３に゛は従来例と同様に凹
部４．４．４．４と山部５．５．５．５が交互に形成さ
れており、カップリングおよび伝達ピンを介して駆動装
置の駆動軸に連結される構成も従来と同様である。FIG. 1 shows a forged roll according to an embodiment. The forged roll has bearing parts 2a and 2b extending from both ends of a roll body l, and a drive connection part 3 at one end of the bearing parts 2a and 2h. are installed in succession. The drive connection part 3 has recesses 4.4.4.4 and peaks 5.5.5.5 alternately formed as in the conventional example, and the drive unit is connected via a coupling and a transmission pin. The configuration connected to the drive shaft is also the same as the conventional one.
上記本実施例に係る鍛造ロールは、第２図に示すロール
材用鋼塊６から一体的に形成される。同図中７は鋼塊鋳
造時に金型で急冷凝固された鋼塊本体部である。該本体
部７の下部には、湯道と鋳型を連結し、本体部７へ溶湯
をスムーズに流入するために形成された湯溜り部８が連
成されている。The forged roll according to this embodiment is integrally formed from a steel ingot 6 for roll material shown in FIG. In the figure, 7 is the main body of the steel ingot that is rapidly solidified in a mold during casting of the steel ingot. A sump 8 is connected to the lower part of the main body 7 and is formed to connect the runner and the mold and to smoothly flow the molten metal into the main body 7.
また本体部７の上部には、本体部７に引は巣が発生する
ものを防止するために形成された押湯部９が連成されて
いる。Further, a riser part 9 is connected to the upper part of the main body part 7, which is formed in order to prevent the occurrence of evacuation cavities in the main body part 7.
本実施例に係る鍛造ロールにおいて、前記ロール胴部１
および駆動連結部３が連設されていない側の軸受部２ｂ
は前記鋼塊６の本体部７から鍛造によって成形され、前
記駆動連結部３は鋼塊６の未鍛造部分即ち前記湯溜り部
８から機械加工等によって成形される。駆動連結部３が
連設されている側の軸受部２ａは、胴部側が鋼塊６の本
体部７から鍛造によって成形され、かつ駆動連結部側か
鋼塊６の未鍛造部分である湯溜り部８から機械加工等に
よって成形され、その結果鍛造部分と未鍛造部分とによ
って連成されている。この鍛造部分と未鍛造部分の境界
Ａは、軸受部２において製作加工の容易な位置に適宜設
けることができる。In the forged roll according to this embodiment, the roll body 1
and the bearing portion 2b on the side where the drive connection portion 3 is not connected.
is formed from the main body portion 7 of the steel ingot 6 by forging, and the drive connection portion 3 is formed from the unforged portion of the steel ingot 6, that is, the sump portion 8, by machining or the like. The bearing part 2a on the side to which the drive connection part 3 is connected is formed by forging the main body part 7 of the steel ingot 6 on the body side, and the drive connection part side is formed by a pool which is an unforged part of the steel ingot 6. The part 8 is formed by machining or the like, and as a result, the forged part and the unforged part are interconnected. The boundary A between the forged portion and the unforged portion can be appropriately provided at a position in the bearing portion 2 that is easy to manufacture.
以上のように本実施例の鍛造ロールでは、ロール駆動連
結部３が鋼塊６の湯溜り部８から形成されるので、この
部分は鋳造組織を有しており、軸方向繊維組織は存在せ
ず、接線方向の機械的強度が高い。As described above, in the forged roll of this embodiment, the roll drive connection part 3 is formed from the pool part 8 of the steel ingot 6, so this part has a cast structure and no axial fiber structure exists. First, it has high mechanical strength in the tangential direction.
尚、本実施例においては、駆動連結部３は軸受部の一方
の先端に設けたが、駆動連結部を軸受の両方の先端に設
ける場合は、前記湯溜り部の他に鋼塊６押湯部９から形
成できる。尚、この場合、駆動連結部として成形する部
分に鋳造欠陥が生ずることを避けるため、押湯部９を通
常より高くすることが望ましい。In this embodiment, the drive connection part 3 is provided at one end of the bearing part, but if the drive connection part 3 is provided at both ends of the bearing part, the steel ingot 6 riser is provided in addition to the sump part. It can be formed from part 9. In this case, it is desirable to make the riser part 9 higher than usual in order to avoid casting defects in the part formed as the drive connection part.
尚、上記のように成形された鍛造ロールは、繊維状組織
によって、軸方向に高い強靭性を有するが、通常鍛造後
熱処理によってロール表面が硬化され、耐摩耗性の向上
が図られる。The forged roll formed as described above has high toughness in the axial direction due to its fibrous structure, but the roll surface is usually hardened by post-forging heat treatment to improve wear resistance.
（発明の効果）
本発明の鍛造ロールでは、ロール駆動連結部３が、未鍛
造鋼塊部によって形成され、鋳造組織を有しているので
、カップリング凸部が当接する山部５，５，５．５にお
ける接線方向の機械的性質が著しく向上される。従って
カップリング凸部を介して駆動力が駆動連結部の山部５
，５，５．５に作用しても、当該部において欠損が発生
しない。(Effects of the Invention) In the forged roll of the present invention, the roll drive connection portion 3 is formed of an unforged steel ingot and has a cast structure, so the peak portions 5, 5, which the coupling convex portion abuts, The tangential mechanical properties in 5.5 are significantly improved. Therefore, the driving force is transmitted through the coupling convex portion to the peak portion 5 of the drive connection portion.
, 5, 5.5, no damage occurs in the relevant part.
第１図は本発明の実施例に係る鍛造ロールの一部断面正
面図、第２図は第１図のロールの素材となるロール材用
鋼塊の正面図、第３図は従来の鍛造ロールの正面図、第
４図はロール駆動連結部の端面図である。
１・・・ロール胴部、２ａ、２ｂ・・・軸受部、３・・
・駆動連結部、
・・・ロール材”用鋼塊。
第３
図Fig. 1 is a partially sectional front view of a forged roll according to an embodiment of the present invention, Fig. 2 is a front view of a steel ingot for roll material which is the raw material for the roll of Fig. 1, and Fig. 3 is a conventional forged roll. FIG. 4 is an end view of the roll drive connection. 1... Roll body, 2a, 2b... Bearing part, 3...
・Drive connection part, ... steel ingot for roll material. Fig. 3
Claims (1)
れ、該軸受部２ａ、２ｂの一方または両方の先端に駆動
連結部３が連設された一体ロールにおいて、前記胴部１
および駆動連結部３が連設されていない側の軸受部２ｂ
はロール材用鋼塊６から鍛造によって形成され、前記駆
動連結部３は前記鋼塊６の未鍛造部分により形成され、
駆動連結部３が連設されている側の軸受部２ａは胴部側
と駆動連結部側とが前記鋼塊６の鍛造部分と未鍛造部分
とによって連成されていることを特徴とする鍛造ロール
。(1) In an integral roll in which bearings 2a and 2b extend from both ends of the roll body 1, and a driving connection part 3 is connected to the tip of one or both of the bearings 2a and 2b, the body 1
and the bearing portion 2b on the side where the drive connection portion 3 is not connected.
is formed by forging from a steel ingot 6 for roll material, and the drive connection part 3 is formed by an unforged part of the steel ingot 6,
The bearing part 2a on the side where the drive connection part 3 is connected is forged, characterized in that the body side and the drive connection part side are connected by a forged part and an unforged part of the steel ingot 6. roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22312288A JPH0270309A (en) | 1988-09-05 | 1988-09-05 | Forging roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22312288A JPH0270309A (en) | 1988-09-05 | 1988-09-05 | Forging roll |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0270309A true JPH0270309A (en) | 1990-03-09 |
Family
ID=16793161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22312288A Pending JPH0270309A (en) | 1988-09-05 | 1988-09-05 | Forging roll |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0270309A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH043627U (en) * | 1990-04-26 | 1992-01-14 | ||
| WO2009035106A1 (en) * | 2007-09-12 | 2009-03-19 | Kouzan Technology Corporation | Roll forming device |
-
1988
- 1988-09-05 JP JP22312288A patent/JPH0270309A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH043627U (en) * | 1990-04-26 | 1992-01-14 | ||
| WO2009035106A1 (en) * | 2007-09-12 | 2009-03-19 | Kouzan Technology Corporation | Roll forming device |
| JP5316955B2 (en) * | 2007-09-12 | 2013-10-16 | 興山テクノ株式会社 | Roll forming device |
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