JP2017078217A - Cooler - Google Patents

Cooler Download PDF

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JP2017078217A
JP2017078217A JP2015207860A JP2015207860A JP2017078217A JP 2017078217 A JP2017078217 A JP 2017078217A JP 2015207860 A JP2015207860 A JP 2015207860A JP 2015207860 A JP2015207860 A JP 2015207860A JP 2017078217 A JP2017078217 A JP 2017078217A
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cooling
workpiece
outer peripheral
inner peripheral
processed
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JP6195599B2 (en
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長之 田村
Nagayuki TAMURA
長之 田村
啓太 竹中
Keita Takenaka
啓太 竹中
英輝 志村
Hideki Shimura
英輝 志村
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Chugai Ro Co Ltd
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Chugai Ro Co Ltd
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Priority to PCT/JP2016/074011 priority patent/WO2017068841A1/en
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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices
    • C21D1/667—Quenching devices for spray quenching
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/40—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rings; for bearing races

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a cooler that prevent strain from generating on a substance to be cooled during cooling by suppressing temperature unevenness from occurring and sufficiently cools the substance to be cooled by appropriately spraying a liquid coolant on the substance to be cooled, when cooling the substance to be cooled by spraying the liquid coolant from an outer periphery side cooling nozzle or an inner periphery side cooling nozzle on an outer periphery part or an inner periphery side nozzle.SOLUTION: When cooling a substance to be cooled 1 by spraying a liquid coolant 2 on an outer periphery part 1a and an inner periphery part 1b of the substance to be cooled from an outer periphery side cooling nozzle 11 disposed on an outer periphery side and an inner periphery side cooling nozzle 12 disposed on an inner periphery side of a ring-like substance to be cooled 1, while moving the outer periphery side cooling nozzle 11 and the inner periphery side cooling nozzle 12 in a circumferential direction, the liquid coolant 2 was sprayed on the outer periphery part 1a and the inner periphery part 1b of the substance to be cooled 1.SELECTED DRAWING: Figure 1

Description

本発明は、被処理物の外周側に設けた外周側冷却ノズルから冷却液を被処理物の外周部に吹き付けて、被処理物を冷却させるようにした冷却装置に関するものである。特に、外周側冷却ノズルから冷却液を被処理物の外周部に吹き付けるにあたり、冷却させる被処理物に温度むらが生じるのを抑制して、冷却時に被処理物に歪が生じるのを防止すると共に、被処理物に冷却液が適切に吹き付けられて、被処理物が十分に冷却されるようにした点に特徴を有するものである。   The present invention relates to a cooling device that cools a workpiece by spraying a cooling liquid onto the outer circumference of the workpiece from an outer peripheral cooling nozzle provided on the outer circumference of the workpiece. In particular, when spraying the coolant from the outer peripheral side cooling nozzle to the outer peripheral portion of the object to be processed, it is possible to suppress the occurrence of temperature unevenness in the object to be cooled and to prevent distortion of the object to be processed during cooling. The feature is that the coolant is appropriately sprayed on the object to be processed so that the object to be processed is sufficiently cooled.

従来から、被処理物に対して焼入れ等の熱処理を行うにあたっては、加熱された被処理物を冷却させることが行われている。   Conventionally, when a heat treatment such as quenching is performed on a workpiece, the heated workpiece is cooled.

そして、このように加熱された被処理物を冷却させるにあたり、特許文献１においては、スリーブからなる被処理物を焼入れ液中に浸漬させると共に、この被処理物を周方向に回転させながら、この被処理物の外周部と内周部とに第１及び第２ジャケットから焼入れ液を噴射させるようにしたものが示されている。   And in cooling the to-be-processed object in this way, in patent document 1, while immersing the to-be-processed object which consists of a sleeve in quenching liquid, and rotating this to-be-processed object to the circumferential direction, this In the figure, a quenching liquid is sprayed from the first and second jackets to the outer peripheral portion and the inner peripheral portion of the workpiece.

しかし、このように被処理物を焼入れ液中に浸漬させた状態で、被処理物を周方向に回転させる場合、被処理物を回転させる抵抗が大きくなって、大きな動力が必要になると共に装置も大型化し、また焼入れ液の交換等の各種のコストが高く付き、さらに被処理物を周方向に回転させる際に、被処理物が偏心して回転し、冷却される被処理物に温度むら等が生じて、冷却された被処理物に歪みが発生する等の問題があった。   However, when the workpiece is rotated in the circumferential direction in such a state that the workpiece is immersed in the quenching liquid, the resistance to rotate the workpiece is increased, and a large power is required and the apparatus In addition, various costs such as replacement of the quenching liquid are high, and when the workpiece is rotated in the circumferential direction, the workpiece is eccentrically rotated, and the temperature of the workpiece to be cooled is uneven. As a result, there is a problem that the cooled workpiece is distorted.

また、特許文献２においては、ピンからなる被処理物を回転機構により周方向に回転させながら、この被処理物の周囲に一定間隔を介して配置された複数の冷却用ノズルから冷却水等の冷却媒体を被処理物の外周部に噴射させるようにしたものが示されている。   Moreover, in patent document 2, while rotating the to-be-processed object which consists of a pin in the circumferential direction with a rotation mechanism, it is cooling water etc. from several cooling nozzles arrange | positioned around this to-be-processed object at fixed intervals. A cooling medium is sprayed onto the outer periphery of the workpiece.

また、特許文献３においては、リングからなる被処理物を下型と上型とに保持させた状態で回転させると共に、被処理物の外周側及び内周側における各ノズルから冷却水と空気の混合物を被処理物の外周部と内周部とにスプレーさせるようにしたものが示されている。   Further, in Patent Document 3, the object to be processed including the ring is rotated while being held by the lower mold and the upper mold, and cooling water and air are supplied from the nozzles on the outer peripheral side and the inner peripheral side of the object to be processed. The mixture is sprayed on the outer peripheral portion and the inner peripheral portion of the workpiece.

しかし、特許文献２，３に示されるものにおいても、被処理物を周方向に回転させながら、冷却媒体をこの被処理物の外周部や内周部に噴射させて被処理物を冷却させるため、特許文献１のものと同様に、被処理物を周方向に回転させる際に、被処理物が偏心して回転し、冷却される被処理物に温度むら等が生じて、冷却された被処理物に歪みが発生する等の問題があった。さらに、特許文献２，３に示されるものにおいては、被処理物を周方向に回転させるため、回転する被処理物の周囲に気流が発生し、この気流により被処理物に吹き付けられる冷却媒体が飛散されるようになり、特にギアのように周面に凹凸が形成された被処理物の場合には、被処理物の周面において飛散される冷却媒体の量が多くなって、ギアの歯の谷部のような周面における凹部に冷却媒体が当たりにくくなり、凹凸被処理物を十分に冷却させることが困難になるという問題もあった。   However, even in those shown in Patent Documents 2 and 3, in order to cool the workpiece by injecting the cooling medium onto the outer peripheral portion or inner peripheral portion of the workpiece while rotating the workpiece in the circumferential direction. As in the case of Patent Document 1, when rotating the object to be processed in the circumferential direction, the object to be processed rotates eccentrically, and the object to be cooled becomes uneven in temperature, etc. There was a problem such as distortion in the object. Furthermore, in what is shown by patent document 2, 3, in order to rotate a to-be-processed object to the circumferential direction, an airflow generate | occur | produces around the rotating to-be-processed object, and the cooling medium sprayed on a to-be-processed object by this airflow is In particular, in the case of an object to be processed having irregularities on its peripheral surface such as a gear, the amount of the cooling medium scattered on the peripheral surface of the object to be processed increases and the gear teeth There is also a problem that it becomes difficult for the cooling medium to hit the concave portion on the peripheral surface such as the valley portion of the ridge, and it becomes difficult to sufficiently cool the uneven workpiece.

特開平７−２２４３２７号公報JP 7-224327 A 特開平１１−５０１３７号公報JP-A-11-50137 特表２００１−５０９５４７号公報Special table 2001-509547 gazette

本発明は、加熱された被処理物を冷却させる場合における前記のような問題を解決することを課題とするものである。   This invention makes it a subject to solve the above problems in the case of cooling the to-be-processed object heated.

特に、被処理物の外周側に設けた外周側冷却ノズルから被処理物の外周部に冷却液を吹き付けて、被処理物を冷却させるにあたり、冷却される被処理物に温度むら等が生じるのを抑制して、冷却された被処理物に歪が生じるのを防止すると共に、被処理物の外周部に冷却液が適切に吹き付けられて、被処理物を十分に冷却させることができるようにすることを課題とするものである。   In particular, when the coolant is sprayed from the outer peripheral cooling nozzle provided on the outer periphery of the workpiece to the outer periphery of the workpiece to cool the workpiece, uneven temperature or the like occurs in the cooled workpiece. To prevent distortion of the cooled object to be processed and to properly cool the object to be processed by properly spraying the coolant on the outer periphery of the object to be processed. It is an object to do.

本発明に係る冷却装置においては、前記のような課題を解決するため、被処理物の外周側に設けた外周側冷却ノズルから冷却液を被処理物の外周部に吹き付けて、被処理物を冷却させる冷却装置において、前記の外周側冷却ノズルを被処理物の外周部に沿って周方向に移動させながら冷却液を被処理物の外周部に吹き付けるようにした。   In the cooling device according to the present invention, in order to solve the above-described problems, a coolant is sprayed from the outer peripheral side cooling nozzle provided on the outer peripheral side of the object to be processed to the outer periphery of the object to be processed. In the cooling device for cooling, the cooling liquid is sprayed on the outer peripheral portion of the workpiece while moving the outer peripheral cooling nozzle in the circumferential direction along the outer peripheral portion of the workpiece.

また、前記の冷却装置において、前記の被処理物として、中央部が開口されて環状になった被処理物を用いた場合においては、この環状になった被処理物の内周側に冷却液を吹き付ける内周側冷却ノズルを設け、この内周側冷却ノズルを前記の被処理物の内周部に沿って周方向に移動させながら冷却液を被処理物の内周部に吹き付けるようにすることができる。   Further, in the above cooling device, when the object to be processed having an annular shape with an opening at the center is used as the object to be processed, a cooling liquid is provided on the inner peripheral side of the object to be processed that is annular. An inner peripheral cooling nozzle is provided to spray the coolant, and the cooling liquid is sprayed to the inner peripheral portion of the workpiece while moving the inner peripheral cooling nozzle in the circumferential direction along the inner peripheral portion of the workpiece. be able to.

また、前記のように外周側冷却ノズルや内周側冷却ノズルから被処理物の外周部や内周部に冷却液を吹き付けるにあたっては、被処理物の外周部や内周部に吹き付ける冷却液の吹付け速度に強弱をつけることもできる。   In addition, when spraying the cooling liquid from the outer peripheral side cooling nozzle or the inner peripheral side cooling nozzle to the outer peripheral part or inner peripheral part of the workpiece as described above, You can also add strength to the spraying speed.

なお、本発明に係る冷却装置において、前記の外周側冷却ノズルや内周側冷却ノズルの本数は特に限定されず、１本であっても複数本であってもよい。   In the cooling device according to the present invention, the number of the outer peripheral side cooling nozzles and the inner peripheral side cooling nozzles is not particularly limited, and may be one or plural.

本発明における冷却装置においては、外周側冷却ノズルを被処理物の外周部に沿って周方向に移動させながら冷却液を被処理物の外周部に吹き付けるようにしたため、被処理物を周方向に回転させながら、冷却液を被処理物の外周部や内周部に吹き付ける場合のように、被処理物が偏心して回転して、冷却される被処理物に温度むら等が生じて、冷却された被処理物に歪みが発生するのが防止されると共に、回転する被処理物の周囲に発生する気流によって被処理物に吹き付けられた冷却液が飛散されるということもなく、被処理物を十分に冷却させることができるようになる。   In the cooling device according to the present invention, the coolant is sprayed on the outer peripheral portion of the workpiece while the outer peripheral cooling nozzle is moved in the circumferential direction along the outer peripheral portion of the workpiece. As the cooling liquid is sprayed on the outer peripheral part or inner peripheral part of the object to be processed while rotating, the object to be processed rotates eccentrically, resulting in uneven temperature in the object to be cooled and cooling. The distortion of the processed object is prevented, and the cooling liquid sprayed on the processed object is not scattered by the airflow generated around the rotating processed object. It can be cooled sufficiently.

本発明の一実施形態に係る冷却装置において、リング状の被処理物の外周側に設けた外周側冷却ノズルと、内周側に設けた内周側冷却ノズルとを被処理物の周方向に移動させながら、これらの冷却ノズルから冷却液を被処理物の外周部と内周部とに吹き付ける状態を示した概略底面図である。In the cooling device according to an embodiment of the present invention, an outer peripheral cooling nozzle provided on the outer peripheral side of the ring-shaped workpiece and an inner peripheral cooling nozzle provided on the inner peripheral side in the circumferential direction of the workpiece. It is the schematic bottom view which showed the state which sprays a cooling liquid on the outer peripheral part and inner peripheral part of a to-be-processed object from these cooling nozzles, moving. 前記の実施形態に係る冷却装置を示した概略正面図である。It is the schematic front view which showed the cooling device which concerns on the said embodiment. 前記の実施形態に係る冷却装置を示した概略平面図である。It is the schematic plan view which showed the cooling device which concerns on the said embodiment. 前記の実施形態に係る冷却装置を示した概略部分断面図である。It is the general | schematic fragmentary sectional view which showed the cooling device which concerns on the said embodiment.

以下、本発明の実施形態に係る冷却装置を添付図面に基づいて具体的に説明する。なお、本発明に係る冷却装置は下記の実施形態に示したものに限定されず、発明の要旨を変更しない範囲において、適宜変更して実施できるものである。   Hereinafter, a cooling device according to an embodiment of the present invention will be specifically described with reference to the accompanying drawings. In addition, the cooling device according to the present invention is not limited to the one shown in the following embodiment, and can be implemented with appropriate modifications within a range not changing the gist of the invention.

この実施形態に係る冷却装置１０においては、図１に示すように、リング状になった被処理物１を冷却させるにあたり、この被処理物１の外周部１ａに冷却液２を吹き付ける外周側冷却ノズル１１を、被処理物１の外周側においてその周方向に所要間隔を介するようにして複数（図に示す例では４つ）設けると共に、被処理物１の内周部１ｂに冷却液２を吹き付ける内周側冷却ノズル１２を、被処理物１の内周側においてその周方向に所要間隔を介するようにして複数（図に示す例では４つ）設けている。なお、被処理物１の外周側に設ける外周側冷却ノズル１１や、被処理物１の内周側に設ける内周側冷却ノズル１２の数は、特に図に示す４つに限定されず、さらに多くしたり、少なくしたりすることができる。   In the cooling apparatus 10 according to this embodiment, as shown in FIG. 1, when cooling the workpiece 1 in a ring shape, outer peripheral side cooling in which the coolant 2 is sprayed on the outer peripheral portion 1 a of the workpiece 1. A plurality of nozzles 11 (four in the example shown in the figure) are provided on the outer peripheral side of the workpiece 1 so as to have a required interval in the circumferential direction, and the coolant 2 is applied to the inner peripheral portion 1b of the workpiece 1. A plurality (four in the example shown in the figure) of the inner peripheral cooling nozzles 12 to be sprayed are provided on the inner peripheral side of the workpiece 1 so as to have a required interval in the circumferential direction. In addition, the number of the outer peripheral side cooling nozzles 11 provided on the outer peripheral side of the workpiece 1 and the inner peripheral cooling nozzles 12 provided on the inner peripheral side of the workpiece 1 are not particularly limited to four as shown in the drawing, You can increase or decrease.

そして、この実施形態に係る冷却装置１０においては、前記の各外周側冷却ノズル１１と各内周側冷却ノズル１２とを、被処理物１の周方向に沿って所定の速度で回転移動させながら、前記の各外周側冷却ノズル１１から冷却液２を被処理物１の外周部１ａに吹き付けると共に、前記の各内周側冷却ノズル１２から冷却液２を被処理物１の内周部１ｂに吹き付けて、被処理物１をその外周側と内周側との両側から冷却させるようにしている。なお、前記のように外周側冷却ノズル１１と内周側冷却ノズル１２とを、被処理物１の周方向に沿って回転移動させるにあたっては、常に一定の速度で回転移動させる場合に限られず、冷却を行う途中で速度を変更させたり、周期的に速度を変更させたりすることもできる。   In the cooling device 10 according to this embodiment, the outer peripheral cooling nozzles 11 and the inner peripheral cooling nozzles 12 are rotated and moved at a predetermined speed along the circumferential direction of the workpiece 1. The coolant 2 is sprayed from the outer peripheral cooling nozzles 11 to the outer peripheral portion 1a of the workpiece 1, and the coolant 2 is sprayed from the inner peripheral cooling nozzles 12 to the inner peripheral portion 1b of the workpiece 1. By spraying, the workpiece 1 is cooled from both the outer peripheral side and the inner peripheral side. In addition, when rotating the outer peripheral side cooling nozzle 11 and the inner peripheral side cooling nozzle 12 along the circumferential direction of the workpiece 1 as described above, it is not limited to always rotating at a constant speed. The speed can be changed during the cooling, or the speed can be changed periodically.

そして、前記の各外周側冷却ノズル１１と各内周側冷却ノズル１２とを、被処理物１の周方向に沿って所定の速度で回転移動させながら、前記の各外周側冷却ノズル１１から冷却液２を被処理物１の外周部１ａに吹き付けると共に、前記の各内周側冷却ノズル１２から冷却液２を被処理物１の内周部１ｂに吹き付けるようにした場合、被処理物１を周方向に回転させる場合のように、被処理物１が偏心して回転し、冷却される被処理物１に温度むら等が生じるのが防止されると共に、回転する被処理物１の周囲に発生する気流によって被処理物１に吹き付けられる冷却液２が飛散されるということもなく、被処理物１を十分に冷却させることができるようになる。   Then, the outer peripheral cooling nozzles 11 and the inner peripheral cooling nozzles 12 are cooled from the outer peripheral cooling nozzles 11 while being rotated at a predetermined speed along the circumferential direction of the workpiece 1. When the liquid 2 is sprayed on the outer peripheral portion 1a of the workpiece 1 and the coolant 2 is sprayed from the inner peripheral cooling nozzles 12 to the inner peripheral portion 1b of the workpiece 1, the workpiece 1 is As in the case of rotating in the circumferential direction, the object to be processed 1 rotates eccentrically, and temperature unevenness is prevented from being generated in the object to be cooled 1 and is generated around the rotating object 1 to be processed. The cooling liquid 2 sprayed on the object to be processed 1 is not scattered by the flowing air current, and the object to be processed 1 can be sufficiently cooled.

次に、前記の実施形態に係る冷却装置１０において、前記の各外周側冷却ノズル１１と各内周側冷却ノズル１２とに冷却液２を供給させると共に、各外周側冷却ノズル１１と各内周側冷却ノズル１２とを被処理物１の周方向に沿って回転移動させる場合について説明する。   Next, in the cooling device 10 according to the above-described embodiment, the coolant 2 is supplied to each of the outer peripheral side cooling nozzles 11 and each of the inner peripheral side cooling nozzles 12, and each of the outer peripheral side cooling nozzles 11 and each of the inner peripheral surfaces thereof. The case where the side cooling nozzle 12 is rotationally moved along the circumferential direction of the workpiece 1 will be described.

ここで、この実施形態における冷却装置１０においては、図２〜図４に示すように、前記の外周側冷却ノズル１１に冷却液２を導く外側冷却液供給管１３の内周側に、内周側冷却ノズル１２に冷却液２を導く内側冷却液供給管１４を設けている。   Here, in the cooling device 10 according to this embodiment, as shown in FIGS. 2 to 4, the inner periphery of the outer coolant supply pipe 13 that guides the coolant 2 to the outer periphery cooling nozzle 11 is arranged on the inner periphery. An inner coolant supply pipe 14 that guides the coolant 2 to the side cooling nozzle 12 is provided.

そして、前記の外側冷却液供給管１３の下端における分岐基部１３ａから周方向に所要間隔を介するようにして、外周側冷却ノズル１１に対応する複数（図に示す例では４つ）の案内管１５を放射方向に突出させ、各案内管１５と前記の各外周側冷却ノズル１１とを、それぞれゴムチューブや金属性フレキシブルチューブ等の可撓性の連結管１６によって連結させると共に、前記の分岐基部１３ａの下に設けられた保持部材１７から外周側冷却ノズル１１に対応する複数（図に示す例では４つ）の保持部１７ａを放射方向に突出させ、前記の各外周側冷却ノズル１１をそれぞれ対応する保持部１７ａに取付部材１８を介して放射方向に移動可能に取り付けている。   Then, a plurality (four in the example shown in the figure) guide pipes 15 corresponding to the outer peripheral side cooling nozzles 11 are provided so as to be circumferentially spaced from the branch base portion 13a at the lower end of the outer coolant supply pipe 13. The guide tube 15 and each of the outer peripheral cooling nozzles 11 are connected to each other by a flexible connection tube 16 such as a rubber tube or a metal flexible tube, and the branch base portion 13a. A plurality of (in the example shown in the figure, four) holding portions 17a corresponding to the outer peripheral side cooling nozzles 11 are protruded in a radial direction from the holding member 17 provided below, and each of the outer peripheral side cooling nozzles 11 is associated with each. It attaches to the holding | maintenance part 17a which can be moved to the radial direction via the attachment member 18. As shown in FIG.

ここで、前記の取付部材１８は、保持部１７ａに対して前後に移動させて固定位置を変更できるようになっており、被処理物１のサイズに応じて固定位置を変更させるようにしている。   Here, the mounting member 18 can be moved back and forth with respect to the holding portion 17 a to change the fixing position, and the fixing position is changed according to the size of the workpiece 1. .

また、外側冷却液供給管１３の内周側に設けた前記の内側冷却液供給管１４を、前記の保持部材１７を挿通させて保持部材１７の下方に延出させ、この内側冷却液供給管１４の下端における分岐基部１４ａから前記の各内周側冷却ノズル１２を放射方向に突出させるようにしている。   Further, the inner cooling liquid supply pipe 14 provided on the inner peripheral side of the outer cooling liquid supply pipe 13 is inserted through the holding member 17 and extended below the holding member 17, and this inner cooling liquid supply pipe The inner peripheral cooling nozzles 12 are projected in the radial direction from the branch base portion 14a at the lower end of 14.

そして、この実施形態における冷却装置１０においては、前記の外側冷却液供給管１３と内側冷却液供給管１４とを回転装置（図示せず）により回転させて、前記の外周側冷却ノズル１１と内周側冷却ノズル１２とを被処理物１の周方向に沿って回転移動させると共に、前記の外側冷却液供給管１３と内側冷却液供給管１４とを通して冷却液２を前記の各外周側冷却ノズル１１と各内周側冷却ノズル１２とに供給し、前記のように外周側冷却ノズル１１と内周側冷却ノズル１２とを被処理物１の周方向に沿って所定の速度で回転移動させながら、各外周側冷却ノズル１１と各内周側冷却ノズル１２とから冷却液２を被処理物１の外周部１ａと内周部１ｂとに吹き付けて、被処理物１をその外周側と内周側との両側から冷却させるようにしている。   In the cooling device 10 in this embodiment, the outer cooling liquid supply pipe 13 and the inner cooling liquid supply pipe 14 are rotated by a rotating device (not shown), and the outer peripheral cooling nozzle 11 and the inner cooling liquid supply pipe 14 are rotated. The peripheral cooling nozzle 12 is rotated and moved along the circumferential direction of the workpiece 1, and the cooling liquid 2 is passed through the outer cooling liquid supply pipe 13 and the inner cooling liquid supply pipe 14. 11 and each inner peripheral cooling nozzle 12 while rotating the outer peripheral cooling nozzle 11 and the inner peripheral cooling nozzle 12 at a predetermined speed along the circumferential direction of the workpiece 1 as described above. The coolant 2 is sprayed from the outer peripheral side cooling nozzles 11 and the inner peripheral side cooling nozzles 12 to the outer peripheral part 1a and the inner peripheral part 1b of the object 1 to be processed. Cooling from both sides .

ここで、前記のように外周側冷却ノズル１１と内周側冷却ノズル１２とを被処理物１の周方向に沿って回転移動させるにあたり、外周側冷却ノズル１１と内周側冷却ノズル１２とを被処理物１の周方向に沿って回転移動させる速度や回転移動させる方向は特に限定されず、外周側冷却ノズル１１と内周側冷却ノズル１２とを被処理物１の周方向に沿って回転移動させる速度を同じにしても異ならせてもよく、さらに外周側冷却ノズル１１と内周側冷却ノズル１２とを被処理物１の周方向に沿って回転移動させる方向を同じにしても異ならせてもよい。   Here, in rotating the outer peripheral side cooling nozzle 11 and the inner peripheral side cooling nozzle 12 along the circumferential direction of the workpiece 1 as described above, the outer peripheral side cooling nozzle 11 and the inner peripheral side cooling nozzle 12 are moved. The speed at which the workpiece 1 is rotated along the circumferential direction and the direction in which the workpiece 1 is rotated are not particularly limited, and the outer cooling nozzle 11 and the inner cooling nozzle 12 are rotated along the circumferential direction of the workpiece 1. The moving speed may be the same or different, and the outer circumferential cooling nozzle 11 and the inner circumferential cooling nozzle 12 may be made different even if the direction in which the outer circumferential cooling nozzle 11 and the inner circumferential cooling nozzle 12 are rotationally moved along the circumferential direction of the workpiece 1 is the same. May be.

また、前記のように各外周側冷却ノズル１１と各内周側冷却ノズル１２とから冷却液２を被処理物１の外周部１ａと内周部１ｂとに吹き付けるにあたっては、各外周側冷却ノズル１１と各内周側冷却ノズル１２とから吹き付ける冷却液２の吹付け速度を常に一定にする他、各外周側冷却ノズル１１と各内周側冷却ノズル１２とから吹き付ける冷却液２の吹付け速度を適当なタイミングで強弱を持たせるように変化させ、被処理物１の外周部１ａや内周部１ｂにおいて冷却液２が膜沸騰する位置と核沸騰する位置とをほぼ定位置に定めたり、ランダムに変更させたりすることにより、被処理物１の外周部１ａや内周部１ｂを冷却させる状態を制御することもできる。   In addition, when the coolant 2 is sprayed from the outer peripheral cooling nozzles 11 and the inner peripheral cooling nozzles 12 to the outer peripheral portion 1a and the inner peripheral portion 1b of the workpiece 1 as described above, the outer peripheral cooling nozzles are used. 11 and the spraying speed of the coolant 2 sprayed from each inner peripheral cooling nozzle 12 are always constant, and the spraying speed of the coolant 2 sprayed from each outer peripheral cooling nozzle 11 and each inner peripheral cooling nozzle 12 The position where the coolant 2 boils the film and the position where the nucleate boils in the outer peripheral part 1a and the inner peripheral part 1b of the workpiece 1 are determined to be almost fixed positions. The state in which the outer peripheral part 1a and the inner peripheral part 1b of the workpiece 1 are cooled can also be controlled by changing them randomly.

なお、前記の実施形態においては、リング状になった被処理物１を用い、この被処理物１の外周部１ａと内周部１ｂとに、外周側冷却ノズル１１と内周側冷却ノズル１２とから冷却液２を吹き付けるようしたが、中実の円柱状になった被処理物１を冷却させるような場合には、前記の内周側冷却ノズル１２を設けないようにして、前記の外周側冷却ノズル１１だけから被処理物１の外周部１ａに冷却液２を吹き付けるようにする。   In the above-described embodiment, the workpiece 1 in the form of a ring is used, and the outer peripheral side cooling nozzle 11 and the inner peripheral side cooling nozzle 12 are provided on the outer peripheral portion 1a and the inner peripheral portion 1b of the workpiece 1. However, in the case of cooling the workpiece 1 having a solid cylindrical shape, the inner peripheral cooling nozzle 12 is not provided and the outer periphery is not provided. The coolant 2 is sprayed on the outer peripheral portion 1a of the workpiece 1 only from the side cooling nozzle 11.

１ ：被処理物
１ａ ：外周部
１ｂ ：内周部
２ ：冷却液
１０ ：冷却装置
１１ ：外周側冷却ノズル
１２ ：内周側冷却ノズル
１３ ：外側冷却液供給管
１３ａ ：分岐基部
１４ ：内側冷却液供給管
１４ａ ：分岐基部
１５ ：案内管
１６ ：連結管
１７ ：保持部材
１７ａ ：保持部
１８ ：取付部材 1: Processed object 1a: Outer peripheral part 1b: Inner peripheral part 2: Cooling liquid 10: Cooling device 11: Outer peripheral side cooling nozzle 12: Inner peripheral side cooling nozzle 13: Outer cooling liquid supply pipe 13a: Branch base 14: Inner cooling Liquid supply pipe 14a: Branch base 15: Guide pipe 16: Connection pipe 17: Holding member 17a: Holding part 18: Mounting member

特開平７−２２４３２７号公報JP 7-224327 A 特開平１１−５０１３７号公報JP-A-11-50137 特表２００１−５０９５４７号公報Special table 2001-509547 gazette

本発明に係る冷却装置においては、前記のような課題を解決するため、処理物の外周側に設けた外周側冷却ノズルから冷却液を被処理物の外周部に吹き付けて、被処理物を冷却させる冷却装置において、前記の外周側冷却ノズルを被処理物の外周部に沿って周方向に移動させながら冷却液を被処理物の外周部に吹き付けるにあたり、被処理物に吹き付ける冷却液の吹付け速度に強弱をつけるように変化させる手段を設けた。 In the cooling device according to the present invention, in order to solve the above-described problems, the coolant is sprayed from the outer peripheral side cooling nozzle provided on the outer peripheral side of the processing object to the outer peripheral portion of the processing object, thereby cooling the processing object. In the cooling apparatus, when the cooling liquid is sprayed on the outer peripheral portion of the workpiece while the outer peripheral cooling nozzle is moved in the circumferential direction along the outer peripheral portion of the workpiece, the coolant is sprayed on the workpiece. A means for changing the speed to increase or decrease was provided .

また、前記のように内周側冷却ノズルから被処理物の内周部に冷却液を吹き付けるにあたっては、被処理物の内周部に吹き付ける冷却液の吹付け速度に強弱をつけるように変化させる手段を設けることもできる。 Further, when spraying the coolant from the inner peripheral side cooling nozzle to the inner periphery of the object to be processed as described above, the spraying speed of the coolant sprayed to the inner periphery of the object to be processed is changed so as to increase or decrease the strength . Means can also be provided .

Claims (3)

被処理物の外周側に設けた外周側冷却ノズルから冷却液を被処理物の外周部に吹き付けて、被処理物を冷却させる冷却装置において、前記の外周側冷却ノズルを被処理物の外周部に沿って周方向に移動させながら冷却液を被処理物の外周部に吹き付けることを特徴とする冷却装置。   In a cooling device that cools a workpiece by spraying a coolant from an outer circumferential cooling nozzle provided on the outer circumferential side of the workpiece, the outer cooling nozzle is connected to the outer circumferential portion of the workpiece. A cooling device characterized by spraying a cooling liquid on the outer peripheral portion of the object to be processed while moving in the circumferential direction. 請求項１に記載の冷却装置において、前記の被処理物として、中央部が開口されて環状になった被処理物を用い、この被処理物の内周部に冷却液を吹き付ける内周側冷却ノズルを設け、この内周側冷却ノズルを前記の被処理物の内周部に沿って周方向に移動させながら冷却液を被処理物の内周部に吹き付けることを特徴とする冷却装置。   2. The cooling device according to claim 1, wherein as the object to be processed, an object to be processed in which a central part is opened and formed in an annular shape is used, and an inner peripheral side cooling in which a cooling liquid is sprayed on an inner peripheral part of the object to be processed. A cooling apparatus characterized by providing a nozzle and spraying a cooling liquid onto the inner peripheral portion of the object to be processed while moving the inner peripheral cooling nozzle in the circumferential direction along the inner peripheral portion of the object to be processed. 請求項１又は請求項２に記載の冷却装置において、前記の外周側冷却ノズル及び／又は内周側冷却ノズルから被処理物に吹き付ける冷却液の吹付け速度に強弱をつけることを特徴とする冷却装置。   The cooling device according to claim 1 or 2, wherein the cooling speed of the cooling liquid sprayed from the outer peripheral side cooling nozzle and / or the inner peripheral side cooling nozzle to the workpiece is increased or decreased. apparatus.
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JPH09176727A (en) * 1995-12-27 1997-07-08 High Frequency Heattreat Co Ltd Cooling device in heat treatment
JP2001509547A (en) * 1997-07-10 2001-07-24 エスケイエフ エンジニアリング アンド リサーチ センター ビーブイ Method of subjecting a metal ring to heat treatment and a bearing ring thus obtained
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