JP2007294165A - Coil for quenching inner surface of cylindrical member by induction heating - Google Patents

Coil for quenching inner surface of cylindrical member by induction heating Download PDF

Info

Publication number
JP2007294165A
JP2007294165A JP2006118654A JP2006118654A JP2007294165A JP 2007294165 A JP2007294165 A JP 2007294165A JP 2006118654 A JP2006118654 A JP 2006118654A JP 2006118654 A JP2006118654 A JP 2006118654A JP 2007294165 A JP2007294165 A JP 2007294165A
Authority
JP
Japan
Prior art keywords
coil
quenching
induction heating
cylindrical member
cylinder
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
Application number
JP2006118654A
Other languages
Japanese (ja)
Inventor
Yoshimasa Tanaka
嘉昌 田中
Takeshi Endo
武 遠藤
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.)
Neturen Co Ltd
Original Assignee
Neturen 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 Neturen Co Ltd filed Critical Neturen Co Ltd
Priority to JP2006118654A priority Critical patent/JP2007294165A/en
Publication of JP2007294165A publication Critical patent/JP2007294165A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Landscapes

  • General Induction Heating (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a coil for quenching the inner surface of a cylindrical member by induction heating, whereby a large quantity of cooling liquid can be used when quenching, and the inner surface can be surely quenched. <P>SOLUTION: In the upper part of a winding type induction heating coil 10 inserted in the inner surface of a cylinder to be heated, a cooling jacket 20 comprising a hollow and double cylinder formed by providing a large number of injection openings 23 in an outer cylinder having the almost same outer diameter as the outer diameter of the coil is provided integrally with the coil 10. One side 12 of the lead part of the coil passes through the inside of the cooling jacket 20, and the other side 13 is axially provide on the outer surface of the outer cylinder 21. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、円筒部材内面を誘導加熱焼入れする際に被焼入れ面を急冷して均一な焼入れをすることのできる誘導加熱焼入用コイルに関するものである。   The present invention relates to a coil for induction heating and quenching that can rapidly quench a to-be-quenched surface when performing induction heating and quenching on the inner surface of a cylindrical member.

従来、円筒部材内面を誘導加熱焼入れする場合、加熱後の焼入れ急冷をするために、コイルの下面に噴出部を設けて、該噴出部から冷却水を噴出して急冷するコイルが開示されている（特許文献１）。また、図３に示すように、コイル１の内側に二重円筒の冷却筒５を配設し、注水口７から注水する冷却液をコイルの隙間を通して噴射口６から噴射して冷却する冷却装置も使用されている。   Conventionally, when induction heating and quenching of the inner surface of a cylindrical member, a coil is disclosed in which an ejection portion is provided on the lower surface of the coil for quenching and quenching after heating, and cooling water is ejected from the ejection portion to quench the coil. (Patent Document 1). Further, as shown in FIG. 3, a cooling device 5 in which a double-cylinder cooling cylinder 5 is disposed inside the coil 1 and cools by injecting cooling liquid injected from the water injection port 7 from the injection port 6 through the gap of the coil. Has also been used.

一方、コイルの加熱電力効率を最大に上げるために、巻形コイルの内面にコア材を十分に充填したい場合が多い。
特開昭６１−２３３９９１号公報 On the other hand, in order to maximize the heating power efficiency of the coil, it is often desirable to sufficiently fill the core material on the inner surface of the wound coil.
JP-A 61-233991

しかしながら、上記従来のコイルは、巻形コイルの内側に冷却水の配管を通したり、あるいはコイル内に冷却筒を置くためにコイル内部にコアーを配設することができず、電力効率を上げることができないという問題点がある。また、冷却液の配管を大きくすることができず、あるいはコイルの巻線の隙間から噴射するために、焼入れ後の冷却が十分にできないという問題点があった。   However, the above conventional coil cannot increase the power efficiency because the cooling water pipe is not passed through the inside of the wound coil, or the core cannot be disposed inside the coil in order to place the cooling cylinder in the coil. There is a problem that can not be. In addition, there is a problem that the cooling pipe cannot be enlarged or the cooling after quenching cannot be sufficiently performed because the cooling liquid cannot be enlarged.

そこで本発明は、上記問題点を解決し、焼入れ時の冷却液量を大きくとれて、確実な焼入れができる円筒部材内面の誘導加熱焼入用コイルを提供することを目的とする。   Accordingly, an object of the present invention is to solve the above-described problems and to provide an induction heating and quenching coil on the inner surface of a cylindrical member that can take a large amount of cooling liquid during quenching and can be surely quenched.

上記目的を達成するために、本発明の円筒部材内面の誘導加熱焼入用コイルは、被加熱円筒内面に挿入される巻形誘導加熱コイルの上方に、該コイルの外径とほぼ同一外径を有する外筒に多数の噴射口が設けられた中空二重筒体からなる冷却ジャケットが該コイルと一体にして設けられたことを特徴とするものである。   In order to achieve the above object, the induction heating and quenching coil on the inner surface of the cylindrical member of the present invention has an outer diameter substantially the same as the outer diameter of the coiled induction heating coil inserted into the heated cylindrical inner surface. A cooling jacket made of a hollow double cylindrical body in which a large number of injection ports are provided in an outer cylinder having the above is provided integrally with the coil.

このように、コイル冷却液と別供給の冷却ジャケットをコイルの上方に設けることにより、焼入れ冷却液の供給管径を大きくすることができるので、焼入れ冷却液量を任意に増加して被焼入れ面を十分に急冷できる。また、コイルと冷却ジャケットとを一体にすることにより、焼入れ温度に加熱後ただちに冷却できるので、完全且つ均一な焼入れができる。一方、冷却ジャケットをコイルの下方に設けると、冷却液供給管をコイル中を通過させて上方に引き出さねばならないので、管径が制限され十分な冷却液量が確保できないという問題点が生ずるが、本発明によりこれが解決される。   In this way, by providing a cooling jacket separately supplied from the coil cooling liquid and above the coil, the diameter of the quenching cooling liquid supply pipe can be increased, so the amount of the quenching cooling liquid can be increased arbitrarily and the surface to be quenched. Can be cooled quickly. Further, by integrating the coil and the cooling jacket, it is possible to cool immediately after heating to the quenching temperature, so that complete and uniform quenching can be achieved. On the other hand, when the cooling jacket is provided below the coil, the cooling liquid supply pipe must pass through the coil and be drawn upward, which causes a problem that the pipe diameter is limited and a sufficient amount of cooling liquid cannot be secured. This is solved by the present invention.

また本発明の円筒部材内面の誘導加熱焼入用コイルは、前記巻形コイルのリード部の一方が前記冷却ジャケットの中空二重筒体の内部を軸方向に上方に貫通し、他方が該中空二重筒体の外面に上方に軸方向に延長して設けられることが望ましい。このようにリード部を配列することにより、従来の加熱コイルより、コイル螺旋内部の空間を大きく取り、巻形コイルの内側の空間のすべてをコアー材で充満することができるので、内部に充填するコアを大きくすることができて加熱電力効率を大きくすることができる。   In the induction heating and quenching coil on the inner surface of the cylindrical member of the present invention, one of the lead portions of the wound coil penetrates the inside of the hollow double cylindrical body of the cooling jacket in the axial direction and the other is the hollow. It is desirable to be provided on the outer surface of the double cylinder so as to extend upward in the axial direction. By arranging the lead portions in this way, the space inside the coil helix can be made larger than the conventional heating coil, and the entire space inside the wound coil can be filled with the core material, so the inside is filled. The core can be enlarged, and the heating power efficiency can be increased.

本発明の円筒部材内面の誘導加熱焼入用コイルによれば、コイルの冷却が完全に行われるとともに焼入れ用のジャケットに冷却水を供給する冷却水管の径を大きくすることができるので、被焼入れ円筒部材内面を十分急冷することができ、完全な焼入れができる。   According to the induction heating and quenching coil on the inner surface of the cylindrical member of the present invention, the coil is completely cooled and the diameter of the cooling water pipe for supplying cooling water to the quenching jacket can be increased. The inner surface of the cylindrical member can be sufficiently quenched and can be completely quenched.

以下、本発明の円筒部材内面の誘導加熱焼入用コイルについて、図示の実施形態により具体的に説明する。図１は本発明実施形態の円筒部材内面の誘導加熱焼入用コイルの斜視図、図２はその断面図である。   Hereinafter, the induction heating and quenching coil on the inner surface of the cylindrical member of the present invention will be specifically described with reference to the illustrated embodiments. FIG. 1 is a perspective view of an induction heating and hardening coil on the inner surface of a cylindrical member according to an embodiment of the present invention, and FIG. 2 is a sectional view thereof.

以下、これらの図を用いて説明する。加熱コイル１０は、被加熱円筒部材（以下ワークという）の内面と所定の隙間を有する外径の単巻、又は複巻の公知の巻形コイルである。そして、その上方に冷却ジャケット２０が一体に結合されて固定される。コイルと冷却ジャケットとの固定は絶縁材料を用いて固定されるものであり、いかなる方法で固定してもよい。   Hereinafter, description will be made with reference to these drawings. The heating coil 10 is a well-known wound coil having an outer diameter having a predetermined gap with an inner surface of a heated cylindrical member (hereinafter referred to as a workpiece) or a double winding. And the cooling jacket 20 is integrally joined and fixed to the upper part. The coil and the cooling jacket are fixed using an insulating material, and may be fixed by any method.

冷却ジャケット２０は外筒２１と内筒２２の両端が密封された中空二重円筒からなり、外筒外径は加熱コイルのコイル外径とほぼ同じにされている。外筒２１には複数の噴射口２３が設けられ、上部の両側に設けられた給水口２４、２４から給水される冷却液を噴出するようになっている。給水口２４、２４は制約されることなく口径を大きくできるので、冷却水量を増すことができ、ワークＷを十分に急冷して完全な焼入れができる。   The cooling jacket 20 comprises a hollow double cylinder in which both ends of the outer cylinder 21 and the inner cylinder 22 are sealed, and the outer diameter of the outer cylinder is substantially the same as the coil outer diameter of the heating coil. The outer cylinder 21 is provided with a plurality of injection ports 23 so as to eject the coolant supplied from the water supply ports 24, 24 provided on both sides of the upper part. Since the diameters of the water supply ports 24, 24 can be increased without restriction, the amount of cooling water can be increased, and the workpiece W can be sufficiently quenched to be completely quenched.

加熱コイル１０は、ワークＷ内面加熱面と一定の隙間を有する外径のコイルに成形された管材からなる。そして、冷却水がリード部１２の給水口１２ａからコイル部１１に通水され、リード部１３の排水口１３ａから排水されて、コイルを冷却するようになっている。そして、一方のリード部１２は、内筒２２の内側を上方に貫通して設けられ、他のリード部１３は冷却ジャケットの外筒２１に沿って上方に軸方向に延長して設けられている。そのため、外筒２１にはリード部１３が通過するくぼみ２１ａが設けられ、リード部１３との隙間が絶縁材２５により充填されている。コイル部１１の内部にはコア１４が空間一杯に充満される。これにより従来のコイルより電力効率を上げることができる。   The heating coil 10 is made of a tube material formed into a coil having an outer diameter having a certain gap from the inner surface of the workpiece W. Then, the cooling water is passed from the water supply port 12a of the lead portion 12 to the coil portion 11 and drained from the drain port 13a of the lead portion 13 to cool the coil. One lead portion 12 is provided so as to penetrate the inside of the inner cylinder 22 upward, and the other lead portion 13 is provided so as to extend upward in the axial direction along the outer cylinder 21 of the cooling jacket. . Therefore, the outer cylinder 21 is provided with a recess 21 a through which the lead portion 13 passes, and a gap with the lead portion 13 is filled with an insulating material 25. The core 14 is filled in the interior of the coil portion 11 to fill the space. As a result, the power efficiency can be increased as compared with the conventional coil.

以下、上記構成の円筒部材内面の誘導加熱焼入用コイルの動作について説明する。
図示しない焼入装置の回転ワーク受け３０にワークＷを載置し、回転ワーク受け３０が図示しない駆動手段により回転される。ワークＷの内面にコイル１０を挿入して、リード部１２，１３から電力を付加してワークＷを回転しながらワーク内面を加熱する。 Hereinafter, the operation of the induction heating and quenching coil on the inner surface of the cylindrical member having the above configuration will be described.
A workpiece W is placed on a rotating workpiece receiver 30 of a quenching apparatus (not shown), and the rotating workpiece receiver 30 is rotated by driving means (not shown). The coil 10 is inserted into the inner surface of the work W, and the work inner surface is heated while rotating the work W by applying electric power from the lead portions 12 and 13.

ワークＷの内面が焼入れ温度に加熱されると、コイルと一体の冷却ジャケットを下方に降下させ、あるいはワークＷを上昇させて、冷却液供給口２４から供給される冷却液を噴射口２３から噴射してワークＷ内面を冷却する。これにより、ワーク内面が均一に急冷されて完全な焼入れが行われる。   When the inner surface of the workpiece W is heated to the quenching temperature, the cooling jacket integrated with the coil is lowered downward, or the workpiece W is raised, and the coolant supplied from the coolant supply port 24 is sprayed from the spray port 23. Then, the work W inner surface is cooled. As a result, the work inner surface is uniformly quenched and completely quenched.

以上述べたように本発明の円筒部材内面の誘導加熱焼入用コイルによれば、コイルと冷却ジャケットとが一体にされているので、焼入れ温度に加熱後ただちに急冷でき、均一且つ完全な焼入れができる。また、冷却ジャケットがコイルの上方に設けられているので、冷却液の供給管径を大きく、焼入れ冷却液量を増加することができるので、被焼入れ面を十分に急冷できて一層完全均一な焼入れができる。また、コイルのリード部の一方を冷却ジャケットの内部を貫通し、他方を外面に延長して設けられるので、コイル内部に充填するコアを大きくし、加熱電力効率が向上する。これにより、作業効率が向上して省エネルギが達成されて、産業の発展に寄与する。   As described above, according to the induction heating and quenching coil on the inner surface of the cylindrical member of the present invention, since the coil and the cooling jacket are integrated, it can be rapidly cooled immediately after heating to the quenching temperature, and uniform and complete quenching can be achieved. it can. In addition, since the cooling jacket is provided above the coil, the coolant supply pipe diameter can be increased and the amount of quenching coolant can be increased, so that the to-be-quenched surface can be sufficiently quenched to achieve even more complete quenching. Can do. Further, since one of the lead portions of the coil is provided so as to penetrate the inside of the cooling jacket and the other is extended to the outer surface, the core filling the inside of the coil is enlarged, and the heating power efficiency is improved. Thereby, work efficiency improves and energy saving is achieved and contributes to industrial development.

本発明実施形態の円筒部材内面の誘導加熱焼入コイルの斜視図である。It is a perspective view of the induction heating hardening coil of the cylindrical member inner surface of this invention embodiment. 本発明実施形態の円筒部材内面の誘導加熱焼入コイルの断面図である。It is sectional drawing of the induction heating hardening coil of the cylindrical member inner surface of this invention embodiment. 従来の円筒部材内面焼入の冷却手段の断面図である。It is sectional drawing of the cooling means of the conventional cylindrical member internal hardening.

符号の説明Explanation of symbols

Ｗ ワーク（被焼入円筒部材）、１ コイル、５ 冷却筒、６ 噴射口、７ 注水口、１０ 加熱コイル、１１ コイル部、１２、１３ リード部、１４ コア、２０ 冷却ジャケット、２１外筒、２２ 内筒、２３ 噴射口、２４ 冷却液供給口、２５ 絶縁材、３０ 回転ワーク受け
W work (hardened cylindrical member), 1 coil, 5 cooling cylinder, 6 injection port, 7 water injection port, 10 heating coil, 11 coil part, 12, 13 lead part, 14 core, 20 cooling jacket, 21 outer cylinder, 22 inner cylinder, 23 injection port, 24 coolant supply port, 25 insulating material, 30 rotating work receptacle

Claims (3)

円筒部材の内面加熱において、被加熱円筒内面に挿入される巻形誘導加熱コイルの上方に、該コイルの外径とほぼ同一外径を有する外筒に多数の噴射口が設けられた中空二重筒体からなる冷却ジャケットが該コイルと一体にして設けられたことを特徴とする円筒部材内面の誘導加熱焼入用コイル。 In the inner surface heating of a cylindrical member, a hollow double in which a large number of injection ports are provided in an outer cylinder having substantially the same outer diameter as the outer diameter of the coiled induction heating coil inserted into the inner surface of the heated cylinder. A coil for induction heating and quenching on the inner surface of a cylindrical member, wherein a cooling jacket made of a cylindrical body is provided integrally with the coil. 前記巻形コイルのリード部の一方が前記冷却ジャケットの中空二重筒体の内部を軸方向に上方に貫通し、他方が該中空二重筒体の外面に上方に軸方向に延長して設けられたことを特徴とする請求項１に記載の円筒部材内面の誘導加熱焼入用コイル。 One of the lead portions of the wound coil penetrates the inside of the hollow double cylinder of the cooling jacket upward in the axial direction, and the other extends vertically on the outer surface of the hollow double cylinder. The induction heating and quenching coil on the inner surface of the cylindrical member according to claim 1, wherein the coil is for induction heating and hardening. 巻形コイルの内側の空間のすべてをコアー材で充満したことを特徴とする請求項２に記載の円筒部材内面の誘導加熱焼入用コイル。
The coil for induction heating and quenching on the inner surface of the cylindrical member according to claim 2, wherein the entire space inside the wound coil is filled with a core material.
JP2006118654A 2006-04-24 2006-04-24 Coil for quenching inner surface of cylindrical member by induction heating Pending JP2007294165A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006118654A JP2007294165A (en) 2006-04-24 2006-04-24 Coil for quenching inner surface of cylindrical member by induction heating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006118654A JP2007294165A (en) 2006-04-24 2006-04-24 Coil for quenching inner surface of cylindrical member by induction heating

Publications (1)

Publication Number Publication Date
JP2007294165A true JP2007294165A (en) 2007-11-08

Family

ID=38764584

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006118654A Pending JP2007294165A (en) 2006-04-24 2006-04-24 Coil for quenching inner surface of cylindrical member by induction heating

Country Status (1)

Country Link
JP (1) JP2007294165A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015139804A (en) * 2014-01-29 2015-08-03 川崎重工業株式会社 Spinning molding device
JP2017221061A (en) * 2016-06-09 2017-12-14 本田技研工業株式会社 Housing temperature raising device
US10384253B2 (en) 2013-12-24 2019-08-20 Kawasaki Jukogyo Kabushiki Kaisha Spinning forming device
JP7457970B2 (en) 2021-03-31 2024-03-29 株式会社ミヤデン Induction heating coil and induction heating device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS576531Y2 (en) * 1979-03-20 1982-02-06
JPS58213828A (en) * 1982-06-03 1983-12-12 Denki Kogyo Kk Induction hardening method of inside surface of bottomed cylindrical body
JPS5938332A (en) * 1982-08-28 1984-03-02 High Frequency Heattreat Co Ltd Method and device for hardening inside circumferential wall of cylindrical body having closed end face over entire length thereof by moving hardening

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS576531Y2 (en) * 1979-03-20 1982-02-06
JPS58213828A (en) * 1982-06-03 1983-12-12 Denki Kogyo Kk Induction hardening method of inside surface of bottomed cylindrical body
JPS5938332A (en) * 1982-08-28 1984-03-02 High Frequency Heattreat Co Ltd Method and device for hardening inside circumferential wall of cylindrical body having closed end face over entire length thereof by moving hardening

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10384253B2 (en) 2013-12-24 2019-08-20 Kawasaki Jukogyo Kabushiki Kaisha Spinning forming device
JP2015139804A (en) * 2014-01-29 2015-08-03 川崎重工業株式会社 Spinning molding device
JP2017221061A (en) * 2016-06-09 2017-12-14 本田技研工業株式会社 Housing temperature raising device
JP7457970B2 (en) 2021-03-31 2024-03-29 株式会社ミヤデン Induction heating coil and induction heating device

Similar Documents

Publication Publication Date Title
JP2007294165A (en) Coil for quenching inner surface of cylindrical member by induction heating
JP2006007764A (en) Insert molding method, insert molding apparatus and proximity sensor
JP6436473B2 (en) Heat treatment system and heat treatment method
JP5444134B2 (en) Stator heating method and apparatus using induction heating
JP6576234B2 (en) Tube pressure test machine
JP6108612B2 (en) Moving quenching device for long workpiece and moving quenching method
JP3582783B2 (en) High frequency moving hardening method for inner peripheral surface of cylindrical housing member of tripod constant velocity joint and high frequency coil used in the method
JP5553440B2 (en) Heat treatment method and heat treatment apparatus
JP3932809B2 (en) Low strain quenching equipment and quenching method
JP2001303125A (en) Jig for quenching outer surface of hollow cylindrical member by induction heating
JP3838746B2 (en) Internal hardening equipment for hollow cylinders
JP2014214326A (en) Hardening device and hardening method
JP3836188B2 (en) Ring gear induction heating quenching and tempering equipment
JP7141076B2 (en) Induction hardening equipment
JP2008179870A (en) Hardening apparatus and hardening method
JP4428545B2 (en) Coil device for high frequency induction heating
JP3164539B2 (en) Induction hardening equipment
JP4884195B2 (en) Cylinder block quenching device and cylinder block manufacturing method
KR101307444B1 (en) Apparatus for induction hardening inner diameter of shoulder
JP7457970B2 (en) Induction heating coil and induction heating device
JPS61174319A (en) Method for cooling toothed member to harden same
JP2011042843A (en) Method and apparatus for softening metallic wire
JP6641117B2 (en) Cooling device, heat treatment device, heat treatment method
JPH05132712A (en) Surface quenching method for parts having oil hole
JP2004307967A (en) Induction hardening and tempering device

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20090420

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110531

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20111003