JPS61159551A - Roller for conveyance - Google Patents
Roller for conveyanceInfo
- Publication number
- JPS61159551A JPS61159551A JP19785A JP19785A JPS61159551A JP S61159551 A JPS61159551 A JP S61159551A JP 19785 A JP19785 A JP 19785A JP 19785 A JP19785 A JP 19785A JP S61159551 A JPS61159551 A JP S61159551A
- Authority
- JP
- Japan
- Prior art keywords
- roller
- spheroidal graphite
- pipe
- conveyance
- cast iron
- 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
Landscapes
- Rollers For Roller Conveyors For Transfer (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、耐焼付は性、耐摩耗性（優れ九搬送用ローラ
に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a conveying roller with excellent seizure resistance and wear resistance.
（従来の技術）
第１図に、搬送用ローラの構成例を示す。第１図におい
て、（ａ）は真上から見た図、（ｂ）は真横から見た図
である。図中、１〜３は搬送される鋼管（以下、パイプ
と呼ぶ）、４は搬送ローラ。(Prior Art) FIG. 1 shows an example of the configuration of a conveyance roller. In FIG. 1, (a) is a view seen from directly above, and (b) is a view seen from directly side. In the figure, 1 to 3 are steel pipes to be transported (hereinafter referred to as pipes), and 4 is a transport roller.
５はストッパでめる。ローラ４は、６に示す矢印の方向
に回転して、パイプ１〜３ｔ７に示す矢印の方向に搬送
し、ストッパ５にパイプ１〜３の先端を順次衝突させる
ことによって、パイプ１〜３の先端をそろえ、その回転
を停止する。5 is set with a stopper. The roller 4 rotates in the direction of the arrow shown in 6, conveys the pipes 1 to 3 in the direction of the arrow shown in t7, and sequentially collides the tips of the pipes 1 to 3 with the stopper 5, thereby removing the tips of the pipes 1 to 3. align and stop its rotation.
この時、先行パイプ１蝶、後行パイプ３がストッパ５に
到着する迄の間、搬送ローラ４との間でスリップしてい
なければならない。At this time, the leading pipe 1 and the trailing pipe 3 must slip between them and the conveying roller 4 until they reach the stopper 5.
従来、搬送り−ラ４の材質としては、８４３０や１３０
ｒ鋼、あるいは鋳鉄、その他が用いられてい九が、高面
圧とすべ）のため、ローラの摩耗や、焼きつきによるパ
イプの疵付き等のトラブルが多く、満足できるものでｒ
ｉすかった。すなわち、８４３Ｃ高周波焼入等の硬さの
硬いローラを用いると、パイプがローラに焼き付いてパ
イプに疵がつき、鋳鉄等の軟いローラでは、ローラが摩
耗し易に問題がめった。Conventionally, the material of the conveyor roller 4 is 8430 or 130.
Steel, cast iron, or other material is used, but due to the high surface pressure and smoothness, there are many problems such as roller wear and pipe flaws due to seizing, so this is not satisfactory.
It was too late. That is, when a hard roller such as 843C induction hardened roller is used, the pipe seizes on the roller and the pipe becomes flawed, and when a soft roller such as cast iron is used, the roller easily wears out, causing problems.
（発明が解決しようとする問題点）
本発明の目的は、シームレス小径管製造ラインにおける
コールドさラドソー搬送ローラの摩耗及びパイプの疵付
きトラブルを解消した搬送用ローラを提供することであ
る。(Problems to be Solved by the Invention) An object of the present invention is to provide a conveyance roller that eliminates the problems of abrasion of cold rad saw conveyance rollers and pipe flaws in a seamless small-diameter pipe production line.
（問題点を解決するための手段）
本発明は、Ｃと８１ の比率がＲ＝＝Ｃ＋１１８５Ｓ１
であシ、かつ４．３≦Ｒ≦＆８ｔ−満足する範囲の球
状黒鉛鋳鉄を焼入し、その顕微鏡組織を球状黒鉛＋均一
焼入硬化組織とすることを特徴とする被搬送材を庇付は
難く、しかも耐焼付き性、耐摩耗性に優れた搬送用ロー
ラに関する。(Means for solving the problem) The present invention provides that the ratio of C and 81 is R==C+1185S1
Eaves a conveyed material characterized by quenching spheroidal graphite cast iron in a range satisfying 4.3≦R≦&8t, and making the microscopic structure of the spheroidal graphite + uniform quench-hardened structure. The present invention relates to a conveying roller that is difficult to remove and has excellent seizure resistance and wear resistance.
すなわち１本発明は、自己潤滑材（黒鉛）Ｔｋ含む鋳鉄
を焼入して、マトリックスを均一硬化することにより、
摩耗し難く、しかも黒鉛の潤滑作用を利用して相手（パ
イプ）を庇付けない搬送ローラとしたことに特徴を有す
る。また、高価な合金を使用していないため、経済的効
果も大でるる。In other words, the present invention quenches cast iron containing self-lubricating material (graphite) Tk to uniformly harden the matrix.
It is characterized by being hard to wear, and by utilizing the lubricating effect of graphite, it is a conveying roller that does not cover the other party (pipe). Furthermore, since no expensive alloys are used, there is a great economic effect.
（作用）
本発明のローラは、Ｃ１！：Ｓｌ の比率がＲ＝０−）
−［１８５ｓｉ であって、しかもＬ３≦Ｒ≦＆８を満
足する範囲の球状黒鉛鋳鉄で裏作され、これに現入・焼
もどし熱処理ｔ−施行することによって作られる。Ｒ＞
６８以上では、熱処理によってフエライ）ｔ−消失する
ことができず、一方、Ｒ（４，３では、炭化物が存在し
易いため、只の範囲ｔ−４，５≦Ｒ≦６８に限定する。(Function) The roller of the present invention has C1! :Sl ratio is R=0-)
-[185si, and is made of spheroidal graphite cast iron that satisfies L3≦R≦&8, and is made by subjecting it to in-fill/tempering heat treatment. R>
If it is 68 or more, t- cannot be eliminated by heat treatment, whereas in R(4,3), carbides are likely to exist, so it is limited to the range t-4,5≦R≦68.
本発明ローラは、焼入によるマトリックスの均一硬化に
よシ耐摩耗性となじみ性を与え、黒鉛の存在によって潤
滑性を与えると共に、耐焼付性を付与するものである。The roller of the present invention provides wear resistance and conformability due to uniform hardening of the matrix through quenching, and provides lubricity and seizure resistance due to the presence of graphite.
すなわち、従来のローラでは、耐摩性を向上させるため
（、焼入し易い材料を用いて、単に硬さを上げたり、炭
化物等の硬い化合物を共存させたりしていた。このため
、ローラの耐摩耗性は向上するが、耐焼付性に劣った夕
、製品となるパイプを疵つけ７Ｍ）していた。また、製
品となるパイプを疵つけぬため、ローラを軟質材とする
と耐摩耗性が問題となっていた。In other words, in conventional rollers, in order to improve the wear resistance (by simply increasing the hardness by using materials that are easy to harden, or by coexisting hard compounds such as carbides), the roller's wear resistance has been improved. Although the abrasion resistance was improved, the seizure resistance was poor, and the resulting pipe was damaged (7M). In addition, if the rollers are made of a soft material in order to prevent damage to the pipe as a product, wear resistance becomes a problem.
これに対し、本発明ローラでは、その顕微鏡組織を球状
黒鉛＋均一硬化された焼入組織とするところに特徴があ
る。すなわち、球状黒鉛の潤滑作用と均一硬化されたマ
トリックスの相互作用によって、製品となるパイプを疵
つけることなく耐摩耗性と耐焼付性を保持するものであ
る。In contrast, the roller of the present invention is characterized in that its microscopic structure is a spheroidal graphite+uniformly hardened quenched structure. That is, the interaction between the lubricating action of spherical graphite and the uniformly hardened matrix maintains wear resistance and seizure resistance without damaging the pipe as a product.
なお、パーライト可鍛や合金可鍛においても、ある特定
成分範囲のものを適当に熱処理することにより、黒鉛ｉ
ｔ一本発明ローラ並に含有させ、基地組ｅ、を均一硬化
することが可能な時には、同等の性能を有することがで
きる。In addition, even in malleable pearlite and malleable alloys, graphite i
When it is possible to uniformly harden the base assembly e by containing the same amount as the roller of the present invention, the same performance can be obtained.
（発明の効果）
本発明ローラは、耐焼付き性、耐摩耗性に優れたもので
６６、しかも被搬送材を庇付ることかない。また、高価
な合金を使用しないため、経済的効果も大きい。(Effects of the Invention) The roller of the present invention has excellent seizure resistance and wear resistance66, and does not cover the conveyed material. Furthermore, since expensive alloys are not used, there is a great economic effect.
次に、本発明の実施例を示す。Next, examples of the present invention will be shown.
実施例
第２図に示す試験装置を用いて、本発明ローラを従来ロ
ーラと比較試験した結果を第１表に示す。また、これら
の供試ローラの焼入の有無、焼入条件を第２表に示す。EXAMPLE Table 1 shows the results of a comparison test of the roller of the present invention with a conventional roller using the testing apparatus shown in FIG. Further, Table 2 shows whether or not these test rollers were hardened and the hardening conditions.
４
第２図において、１１は相手パイプ、１２はストッパ、
１３は供試ローラ、１４は接触面圧を負荷するための重
錘、１５は支持台で１）、１６は供試ローラ１３の回転
方向を示し、Ｖは回転速度を示す口
なか、試験に用いたローラ及びパイプの直径は、
ローラ径＝２１０φ、パイプ径；１４０φで６シ、接触
面圧は、ヘルツ面圧でｓｏｋｇｔｌ■２で、１時間試験
した。また、ローラの回転速度は、Ｖ ＝ １６５ ｒ
ｐｍと１ ＝ １９ ｒｐｍの２ｆｆＩ類でるる。4 In Fig. 2, 11 is a mating pipe, 12 is a stopper,
13 is the test roller, 14 is a weight for applying contact surface pressure, 15 is a support base 1), 16 is the rotation direction of the test roller 13, and V is the rotation speed. The diameters of the rollers and pipes used were as follows: roller diameter = 210 φ, pipe diameter: 140 φ, 6 mm, contact surface pressure was Hertzian surface pressure of sokgtl 2, and the test was conducted for 1 hour. Also, the rotational speed of the roller is V = 165 r
pm and 1 = 19 rpm's 2ffI type.
第 ２ 表
第１表から、比較ローラとして用いた従来ローラ（１）
〜（３）が、いずれもパイプがローラへ焼付いたシ、あ
るいはローラの摩耗がきわめて大きいのに対して、本発
明ローラは、摩耗量も極めて少なく、しかも、パイプの
焼付きもないという優れた性能を有していることがわか
る。Table 2 From Table 1, the conventional roller (1) used as a comparison roller
In contrast to (3), in which the pipe seizes on the roller, or the roller wears out to a large extent, the roller of the present invention has an excellent feature in that the amount of wear is extremely small and the pipe does not seize. It can be seen that it has good performance.
すなわち、従来ローラの問題点であったかたさを硬くす
ると、パイプがローラに焼付き、反対に軟くすると、ロ
ーラが摩耗し易いという欠点が本発明ローラによって除
去されていることがわかる。That is, it can be seen that the problem of the conventional rollers, that when the hardness is made hard, the pipe seizes on the roller, and when the hardness is made soft, the roller tends to wear easily, which has been eliminated by the roller of the present invention.
第１図は、搬送用ローラの構底例を示す。第２図は、実
施例で使用された試験装置を示す。
復代理人 内 １） 明
復代理人 萩 原 亮 −FIG. 1 shows an example of the structure of the conveying roller. FIG. 2 shows the test equipment used in the examples. Sub-agents 1) Meifuku agent Ryo Hagiwara -
Claims (1)
．３≦Ｒ≦６．８を満足する範囲の球状黒鉛鋳鉄を焼入
し、その顕微鏡組織を球状黒鉛＋均一焼入硬化組織とす
ることを特徴とする被搬送材を疵付け難く、しかも耐焼
付き性、耐摩耗性に優れた搬送用ローラ。The ratio of C and Si is R=C+0.85Si, and 4
．． Spheroidal graphite cast iron that satisfies 3≦R≦6.8 is quenched, and the microscopic structure thereof is made into a spheroidal graphite + uniformly quenched hardened structure.The conveyed material is hard to be scratched and is resistant to seizure. Conveyance rollers with excellent durability and wear resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19785A JPS61159551A (en) | 1985-01-07 | 1985-01-07 | Roller for conveyance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19785A JPS61159551A (en) | 1985-01-07 | 1985-01-07 | Roller for conveyance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61159551A true JPS61159551A (en) | 1986-07-19 |
Family
ID=11467263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19785A Pending JPS61159551A (en) | 1985-01-07 | 1985-01-07 | Roller for conveyance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61159551A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019167183A (en) * | 2018-03-22 | 2019-10-03 | 株式会社栗本鐵工所 | Cylindrical body |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5435114A (en) * | 1977-08-25 | 1979-03-15 | Toyota Motor Corp | Valve rocker arm made of nodular graphite cast iron |
| JPS5441216A (en) * | 1977-09-07 | 1979-04-02 | Toyo Kogyo Co | Wearrresistant spheroidal iron and slidinggproducts made of cast iron |
-
1985
- 1985-01-07 JP JP19785A patent/JPS61159551A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5435114A (en) * | 1977-08-25 | 1979-03-15 | Toyota Motor Corp | Valve rocker arm made of nodular graphite cast iron |
| JPS5441216A (en) * | 1977-09-07 | 1979-04-02 | Toyo Kogyo Co | Wearrresistant spheroidal iron and slidinggproducts made of cast iron |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019167183A (en) * | 2018-03-22 | 2019-10-03 | 株式会社栗本鐵工所 | Cylindrical body |
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