JPH0925519A - Induction heating coil - Google Patents
Induction heating coilInfo
- Publication number
- JPH0925519A JPH0925519A JP7175233A JP17523395A JPH0925519A JP H0925519 A JPH0925519 A JP H0925519A JP 7175233 A JP7175233 A JP 7175233A JP 17523395 A JP17523395 A JP 17523395A JP H0925519 A JPH0925519 A JP H0925519A
- Authority
- JP
- Japan
- Prior art keywords
- induction heating
- heating coil
- sliding surface
- belt sliding
- angle
- 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.)
- Granted
Links
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
- Heat Treatment Of Articles (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、車両の変速装置を
構成する駆動側または従動側プーリ機構のベルト摺動面
を、高周波焼入れを行うために高周波加熱する誘導加熱
コイルに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an induction heating coil for induction heating a belt sliding surface of a driving or driven pulley mechanism that constitutes a transmission of a vehicle for induction hardening.
【０００２】[0002]
【従来の技術】従来から、製品の耐久性を向上させるた
めに、該製品の摺動部分並びに摩耗部分等を加熱した
後、急速に冷却して硬化させる熱処理が用いられてお
り、この熱処理として、高周波焼入れ方法が広く採用さ
れている。この高周波焼入れ方法では、ワークに対応し
て種々の形状を有するコイルに高周波電流を供給し、前
記高周波電流により発生する誘導電流によってワークを
高周波加熱した後、冷却水を用いて前記加熱部分を急速
に冷却することにより、該ワークの表面に硬化層を形成
している。2. Description of the Related Art Conventionally, in order to improve the durability of a product, a heat treatment has been used in which a sliding portion and a worn portion of the product are heated and then rapidly cooled and hardened. The induction hardening method is widely adopted. In this induction hardening method, a high-frequency current is supplied to coils having various shapes corresponding to the work, and the work is induction-heated by an induction current generated by the high-frequency current, and then the heated portion is rapidly cooled with cooling water. By cooling to 1, the hardened layer is formed on the surface of the work.
【０００３】ところで、前記ワークとして車両の変速装
置を構成する駆動側または従動側プーリ機構のベルト摺
動面に対して高周波焼入れを施す場合、半径外方向に向
かって連続して周回する渦巻き状コイルが用いられてい
る。具体的には、この渦巻き状コイルと前記ベルト摺動
面とを所定距離離間させた状態で両者を位置決めして固
定し、前記渦巻き状コイルに高周波電流を供給してベル
ト摺動面を加熱した後、前記加熱部分を冷却水供給手段
によって冷却することにより、プーリシャフトおよびプ
ーリのベルト摺動面に硬化層を形成している。By the way, when induction hardening is applied to the belt sliding surface of the driving side or driven side pulley mechanism constituting the transmission of the vehicle as the work, the spiral coil continuously orbiting outward in the radial direction. Is used. Specifically, the spiral coil and the belt sliding surface are positioned and fixed with a predetermined distance therebetween, and a high frequency current is supplied to the spiral coil to heat the belt sliding surface. After that, the hardened layer is formed on the pulley shaft and the belt sliding surface of the pulley by cooling the heated portion by the cooling water supply means.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記従
来技術に係る渦巻き状コイルを用いて高周波焼入れを行
った場合、渦巻き状コイルを中心としてベルト摺動面の
反対側に冷却水供給手段が設けられ、各隣接する渦巻き
状コイルの外周間の狭小な間隙を介して冷却水がベルト
摺動面に導出されることから、プーリシャフトおよびプ
ーリのベルト摺動面を均一に冷却することができないと
いう問題がある。However, when induction hardening is performed using the spiral coil according to the above-mentioned prior art, the cooling water supply means is provided on the side opposite to the belt sliding surface with the spiral coil as the center. The problem that the pulley shaft and the belt sliding surface of the pulley cannot be uniformly cooled because the cooling water is led to the belt sliding surface through the narrow gap between the outer circumferences of the adjacent spiral coils. There is.
【０００５】さらに、プーリシャフトでは、ベルト摺動
面の反対側の周縁に前記プーリシャフトの回転速度を検
出するために複数のドグ( 突起部）が形成されている。
従って、ベルト摺動面の周縁側が厚肉なものとなってお
り、この周縁部分が有効に加熱されない場合が多い。Further, in the pulley shaft, a plurality of dogs (protrusions) are formed on the peripheral edge on the opposite side of the belt sliding surface to detect the rotational speed of the pulley shaft.
Therefore, the peripheral edge of the belt sliding surface is thick, and the peripheral edge is often not effectively heated.
【０００６】この結果、ベルト摺動面に加熱ムラや冷却
ムラが発生してしまい、前記ベルト摺動面全体にわたっ
て所望の硬度を得ることができないという問題が指摘さ
れている。As a result, it has been pointed out that heating unevenness and cooling unevenness occur on the belt sliding surface, and the desired hardness cannot be obtained over the entire belt sliding surface.
【０００７】本発明は、この種の問題を解決するもので
あり、プーリシャフトおよびプーリのベルト摺動面を均
一に加熱および冷却することができ、所望の硬度を確実
に得ることが可能な誘導加熱コイルを提供することを目
的とする。The present invention solves this kind of problem, and it is possible to uniformly heat and cool the pulley shaft and the belt sliding surface of the pulley, and it is possible to surely obtain a desired hardness. The purpose is to provide a heating coil.
【０００８】[0008]
【課題を解決するための手段】前記の目的を達成するた
めに、本発明の誘導加熱コイルは、第１〜第Ｎ円弧部
と、隣接する前記第１〜第Ｎ円弧部の端部をそれぞれ連
結する第１〜第（Ｎ−１）段部とを有しており、この誘
導加熱コイルと駆動側または従動側プーリ機構のベルト
摺動面を相対的に回転変位させた状態において、前記第
１〜第Ｎ円弧部および前記第１〜第（Ｎ−１）段部に供
給された高周波電流によって誘導電流が発生し、前記誘
導電流によって該ベルト摺動面全体が高周波加熱され
る。In order to achieve the above object, the induction heating coil of the present invention has a first to N-th circular arc portion and an end portion of the adjacent first to N-th circular arc portion, respectively. The first to (N-1) th step portions are connected to each other, and when the induction heating coil and the belt sliding surface of the driving side or driven side pulley mechanism are relatively rotationally displaced, An induction current is generated by the high-frequency currents supplied to the first to N-th circular arc portions and the first to (N-1) th step portions, and the induction current heats the entire belt sliding surface by high-frequency waves.
【０００９】その際、ベルト摺動面の反対側の周縁に設
けられた突起部に対応する最外周の第Ｎ円弧部の分割角
度が、第１〜第（Ｎ−１）円弧部のそれぞれの分割角度
よりも大きな角度に設定されている。このため、ベルト
摺動面の周縁部分を有効に加熱することができ、前記ベ
ルト摺動面全体を均一加熱することが可能になる。At this time, the division angle of the Nth arcuate portion of the outermost circumference corresponding to the protrusion provided on the peripheral edge on the opposite side of the belt sliding surface is such that the first to (N-1) th arcuate portions are divided. The angle is set to be larger than the division angle. Therefore, the peripheral portion of the belt sliding surface can be effectively heated, and the entire belt sliding surface can be uniformly heated.
【００１０】また、第１〜第（Ｎ−１）段部によって連
結される第１〜第Ｎ円弧部は、ベルト摺動面に対する占
有面積が小さく、かつ隣接するコイル間の空間を大きく
することができ、冷却水がベルト摺動面の全体に行き渡
る。これにより、ベルト摺動面全体を均一かつ効率的に
冷却することが可能になる。Further, the first to N-th circular arc portions connected by the first to (N-1) th step portions have a small occupation area with respect to the belt sliding surface and a large space between adjacent coils. The cooling water spreads over the entire sliding surface of the belt. This makes it possible to uniformly and efficiently cool the entire belt sliding surface.
【００１１】[0011]
【発明の実施の形態】図１は、本実施形態に係る誘導加
熱コイルの斜視図を示す。この誘導加熱コイルによって
高周波加熱されるプーリシャフトは、車両の変速装置に
組み込まれている。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a perspective view of an induction heating coil according to this embodiment. The pulley shaft that is heated at high frequency by this induction heating coil is incorporated in a transmission of a vehicle.
【００１２】図４に示すように、変速装置１０は、高周
波加熱されるプーリシャフトである駆動側および従動側
プーリシャフト１２、１４を備え、この駆動側および従
動側プーリシャフト１２、１４は、それぞれプーリ部１
６、１８とシャフト部２０、２２とから一体的に形成さ
れる。プーリ部１６、１８の一面側には、Ｖベルト２
４、２６と接触するベルト摺動面２８、３０が形成され
る一方、前記プーリ部１６、１８の他面側周縁には、複
数のドグ（突起部）３２、３４が所定間隔離間して設け
られる（図３参照）。As shown in FIG. 4, the transmission 10 is provided with drive side and driven side pulley shafts 12 and 14 which are pulley shafts which are heated by high frequency. The drive side and driven side pulley shafts 12 and 14 are respectively provided. Pulley part 1
6, 18 and the shaft portions 20, 22 are integrally formed. The V belt 2 is provided on one surface side of the pulley portions 16 and 18.
Belt sliding surfaces 28 and 30 are formed in contact with Nos. 4 and 26, while a plurality of dogs (projections) 32 and 34 are provided at predetermined intervals on the other surface side peripheral edge of the pulleys 16 and 18. (See FIG. 3).
【００１３】駆動側および従動側プーリシャフト１２、
１４のシャフト部２０、２２には、軸線方向に沿って変
位自在な駆動側および従動側プーリ３６、３８がそれぞ
れ同軸的に支持される。駆動側および従動側プーリ３
６、３８の一面側にベルト摺動面４０、４２が形成さ
れ、このベルト摺動面４０、４２とプーリ部１６、１８
のベルト摺動面２８、３０との間にＶベルト２４、２６
が懸架される。Drive side and driven side pulley shafts 12,
Drive shafts and driven pulleys 36 and 38, which are displaceable along the axial direction, are coaxially supported by the shaft portions 20 and 22 of the shaft 14, respectively. Drive side and driven side pulley 3
Belt sliding surfaces 40, 42 are formed on one surface side of the pulleys 6, 38, and the belt sliding surfaces 40, 42 and the pulley portions 16, 18 are formed.
V belts 24, 26 between the belt sliding surfaces 28, 30 of
Is suspended.
【００１４】図１および図２において、参照数字５０
は、誘導加熱コイルを示す。この誘導加熱コイル５０
は、１８０゜以上の中心角を所定の角度毎に分割すると
ともにベルト摺動面２８、３０の形状に対応して中心Ｏ
からの半径が順次大きくなる第１〜第５円弧部５２ａ〜
５２ｅと、隣接する前記第１〜第５円弧部５２ａ〜５２
ｅの端部をそれぞれ連結する第１〜第４段部５４ａ〜５
４ｄと、前記第１および第５円弧部５２ａ、５２ｅの一
端部に連結され駆動側および従動側プーリシャフト１
２、１４のシャフト部２０、２２を所定の角度だけ周回
する周回コイル部５６、５８を含む第１および第２誘導
加熱導体部６０、６２とを備える。1 and 2, reference numeral 50
Indicates an induction heating coil. This induction heating coil 50
Divides a central angle of 180 ° or more at a predetermined angle and forms a center O corresponding to the shapes of the belt sliding surfaces 28 and 30.
From the first to fifth arc portions 52a whose radius from
52e and the adjacent first to fifth circular arc portions 52a to 52
1st-4th step part 54a-5 which connects the edge part of e respectively
4d and the drive-side and driven-side pulley shafts 1 connected to one ends of the first and fifth arc portions 52a and 52e.
The first and second induction heating conductor portions 60 and 62 including the revolving coil portions 56 and 58 that revolve around the shaft portions 20 and 22 of 2, 14 by a predetermined angle.
【００１５】第１〜第５円弧部５２ａ〜５２ｅ、第１〜
第４段部５４ａ〜５４ｄ並びに第１および第２誘導加熱
導体部６０、６２は、それぞれの断面が四角形の略同一
形状に形成されるとともに、それぞれのコイル幅も略同
一に構成される。第１および第２誘導加熱導体部６０、
６２の端部には、高周波用の一組の入力端子６４ａ、６
４ｂが設けられ、前記入力端子６４ａ、６４ｂは、リー
ド線を介して図示しない高周波電源に接続される。First to fifth circular arc portions 52a to 52e, first to first
The fourth step portions 54a to 54d and the first and second induction heating conductor portions 60 and 62 are formed to have substantially the same quadrangular cross section and have substantially the same coil width. First and second induction heating conductor portions 60,
At the end of 62, a pair of high frequency input terminals 64a, 6
4b is provided, and the input terminals 64a and 64b are connected to a high frequency power source (not shown) via lead wires.
【００１６】誘導加熱コイル５０の内部には、中空状の
連続する管路６６が形成され、この管路６６に冷却水を
供給することにより、前記誘導加熱コイル５０が冷却さ
れる。中心Ｏからの半径が最も大きな第５円弧部５２ｅ
は、プーリ部１６、１８のベルト摺動面２８、３０より
外方に向かって突出するように構成されている（図２お
よび図３参照）。A hollow continuous pipe line 66 is formed inside the induction heating coil 50, and the induction heating coil 50 is cooled by supplying cooling water to the pipe line 66. The fifth arc portion 52e having the largest radius from the center O
Is configured to project outward from the belt sliding surfaces 28 and 30 of the pulley portions 16 and 18 (see FIGS. 2 and 3).
【００１７】図１および図２に示すように、第１〜第５
円弧部５２ａ〜５２ｅの中心角は、中心Ｏに対してそれ
ぞれ角度θ1 、θ2 、θ3 、θ4 およびθ5 に分割され
るとともに、プーリ部１６、１８のドグ３２、３４の位
置に対応する最外周の前記第５円弧部５２ｅの分割角度
θ5 が、第１〜第４円弧部５２ａ〜５２ｄのそれぞれの
分割角度θ1 、θ2 、θ3 およびθ4 よりも大きな角度
に設定される（θ5 ＞θ1 ＝θ2 ＝θ3 ＝θ4 ）。具体
的には、θ1 ＝θ2 ＝θ3 ＝θ4 ＝３６゜で、θ5 ＝４
３゜であり、これにより誘導加熱コイル５０全体の中心
角は、１８７゜になる。As shown in FIG. 1 and FIG.
The central angles of the circular arc portions 52a to 52e are divided into angles θ 1 , θ 2 , θ 3 , θ 4 and θ 5 with respect to the center O, respectively, and at the positions of the dogs 32, 34 of the pulley portions 16, 18. The division angle θ 5 of the corresponding fifth outermost circular arc portion 52e is set to be larger than the respective division angles θ 1 , θ 2 , θ 3 and θ 4 of the first to fourth circular arc portions 52a to 52d. (Θ 5 > θ 1 = θ 2 = θ 3 = θ 4 ). Specifically, θ 1 = θ 2 = θ 3 = θ 4 = 36 ° and θ 5 = 4
It is 3 °, so that the central angle of the entire induction heating coil 50 is 187 °.
【００１８】このように構成される誘導加熱コイル５０
の動作について説明する。なお、ワークとしては、駆動
側プーリシャフト１２のみを用いて説明する。The induction heating coil 50 constructed in this way
Will be described. The work will be described using only the drive pulley shaft 12.
【００１９】先ず、図５および図６に示すように、誘導
加熱コイル５０、駆動側プーリシャフト１２および冷却
水供給手段７０ａ、７０ｂが位置決め固定される。すな
わち、誘導加熱コイル５０の周回コイル部５６、５８に
駆動側プーリシャフト１２のシャフト部２０を挿入する
とともに、第１〜第５円弧部５２ａ〜５２ｅがこの駆動
側プーリシャフト１２のベルト摺動面２８から所定間隔
離間するように位置決めされる。駆動側プーリシャフト
１２は、図示しない回転手段に連結されたホルダ７４を
介して矢印方向に回転自在に支持される（図６参照）。First, as shown in FIGS. 5 and 6, the induction heating coil 50, the driving pulley shaft 12 and the cooling water supply means 70a, 70b are positioned and fixed. That is, the shaft portion 20 of the drive pulley shaft 12 is inserted into the orbiting coil portions 56 and 58 of the induction heating coil 50, and the first to fifth arc portions 52a to 52e are the belt sliding surfaces of the drive pulley shaft 12. It is positioned so as to be separated from the 28 by a predetermined distance. The drive side pulley shaft 12 is rotatably supported in the arrow direction via a holder 74 connected to a rotating means (not shown) (see FIG. 6).
【００２０】さらに、誘導加熱コイル５０の上方に、所
定間隔離間して略半円状の一対の冷却水供給手段７０
ａ、７０ｂが位置決めされる。冷却水供給手段７０ａ、
７０ｂの底面部には、ベルト摺動面２８に向かって複数
の冷却水導出孔部７２が形成されている。Further, above the induction heating coil 50, a pair of substantially semi-circular cooling water supply means 70 are spaced apart by a predetermined distance.
a and 70b are positioned. Cooling water supply means 70a,
A plurality of cooling water lead-out holes 72 are formed on the bottom surface of 70b toward the belt sliding surface 28.
【００２１】入力端子６４ａ、６４ｂは、リード線を介
して図示しない高周波電源に接続されており、また、誘
導加熱コイル５０自体を冷却するために、管路６６内に
冷却水が供給されている。The input terminals 64a and 64b are connected to a high frequency power source (not shown) via lead wires, and cooling water is supplied into the pipeline 66 to cool the induction heating coil 50 itself. .
【００２２】このような準備段階を経た後、高周波電源
を付勢して誘導加熱コイル５０に高周波電流が供給され
るとともに、回転手段を介し中心Ｏを回転中心にして駆
動側プーリシャフト１２が所定方向に回転される。そし
て、高周波電流により誘導電流が発生し、前記誘導電流
によって誘導加熱コイル５０と対面する駆動側プーリシ
ャフト１２のベルト摺動面２８が加熱される。After passing through such a preparatory stage, the high frequency power source is energized to supply the high frequency current to the induction heating coil 50, and the driving pulley shaft 12 is rotated about the center O through the rotating means. Is rotated in the direction. Then, an induction current is generated by the high frequency current, and the belt sliding surface 28 of the drive pulley shaft 12 facing the induction heating coil 50 is heated by the induction current.
【００２３】この場合、図３に示すように、駆動側プー
リシャフト１２のプーリ部１６には、ベルト摺動面２８
の反対側の周縁に複数のドグ３２が形成されている。こ
のため、ベルト摺動面２８の周縁部分がこのベルト摺動
面２８の他の部分に比べて加熱され難くなっている。In this case, as shown in FIG. 3, a belt sliding surface 28 is provided on the pulley portion 16 of the drive side pulley shaft 12.
A plurality of dogs 32 are formed on the opposite peripheral edge. Therefore, the peripheral portion of the belt sliding surface 28 is less likely to be heated than other portions of the belt sliding surface 28.
【００２４】そこで、本実施形態では、誘導加熱コイル
５０を構成する第１〜第５円弧部５２ａ〜５２ｅが、１
８０゜以上の中心角を所定の角度毎に分割されるととも
に、ドグ３２の位置に対応する最外周の前記第５円弧部
５２ｅの分割角度θ5 が、第１〜第４円弧部５２ａ〜５
２ｄのそれぞれの分割角度θ1 、θ2 、θ3 およびθ 4
よりも大きな角度に設定されている（θ5 ＞θ1 ＝θ2
＝θ3 ＝θ4 ）。具体的には、θ1 ＝θ2 ＝θ3 ＝θ4
＝３６゜で、θ5 ＝４３゜であり、誘導加熱コイル５０
全体の中心角は、１８７゜である。Therefore, in this embodiment, an induction heating coil is used.
1st-5th circular arc part 52a-52e which comprises 50 is 1
It is said that the central angle of 80 ° or more is divided into predetermined angles.
And the outermost peripheral fifth arc portion corresponding to the position of the dog 32.
52e division angle θFiveAre the first to fourth arc portions 52a to 5
Each division angle θ of 2d1, ΘTwo, ΘThreeAnd θ Four
Is set to a larger angle than (θFive> Θ1= ΘTwo
= ΘThree= ΘFour). Specifically, θ1= ΘTwo= ΘThree= ΘFour
= 36 °, θFive= 43 °, induction heating coil 50
The overall central angle is 187 °.
【００２５】このため、ドグ３２の位置に対応するベル
ト摺動面２８の周縁部分を有効に加熱することができ、
前記ベルト摺動面２８全体を均一加熱することが可能に
なるという効果が得られる。Therefore, the peripheral portion of the belt sliding surface 28 corresponding to the position of the dog 32 can be effectively heated,
The effect that the entire belt sliding surface 28 can be heated uniformly is obtained.
【００２６】ところで、プーリ部１６のベルト摺動面２
８が一様に加熱されて所定の焼入れ温度に到達した後、
冷却水供給手段７０ａ、７０ｂが駆動されて複数の冷却
水導出孔部７２から前記ベルト摺動面２８の全体にわた
って冷却水７６が供給される。その際、必要に応じて、
回転手段を滅勢して駆動側プーリシャフト１２を静止さ
せた状態でベルト摺動面２８に冷却水７６を供給し、あ
るいは前記回転手段を付勢した状態を継続させ、前記駆
動側プーリシャフト１２を所定方向に回転させた状態で
ベルト摺動面２８に冷却水７６を供給してもよい。By the way, the belt sliding surface 2 of the pulley portion 16
After 8 was heated uniformly and reached the predetermined quenching temperature,
The cooling water supply means 70a, 70b are driven to supply the cooling water 76 from the plurality of cooling water outlet holes 72 to the entire belt sliding surface 28. At that time, if necessary,
Cooling water 76 is supplied to the belt sliding surface 28 in a state where the rotating means is deenergized and the drive-side pulley shaft 12 is stationary, or the rotating means is kept energized to keep the drive-side pulley shaft 12 stationary. The cooling water 76 may be supplied to the belt sliding surface 28 in a state where the cooling water is rotated in a predetermined direction.
【００２７】本実施形態に係る誘導加熱コイル５０は、
従来技術に係る渦巻き状コイルと異なり、冷却水７６を
ベルト摺動面２８全体に有効に供給することができる。
この結果、冷却ムラを発生させることがなく、ベルト摺
動面２８が均一かつ効率的に冷却される。The induction heating coil 50 according to this embodiment is
Unlike the spiral coil according to the related art, the cooling water 76 can be effectively supplied to the entire belt sliding surface 28.
As a result, the belt sliding surface 28 is cooled uniformly and efficiently without causing uneven cooling.
【００２８】これにより、誘導加熱コイル５０を用いる
ことによって、ベルト摺動面２８全面を均一に加熱する
ことができるとともに、冷却ムラを発生させることがな
く、該ベルト摺動面２８の表面に所望の硬度からなる硬
化層を確実に形成することが可能になる。Thus, by using the induction heating coil 50, the entire surface of the belt sliding surface 28 can be heated uniformly, and cooling unevenness does not occur, and a desired surface of the belt sliding surface 28 can be obtained. It is possible to reliably form a hardened layer having a hardness of.
【００２９】なお、従動側プーリシャフト１４、駆動側
および従動側プーリ３６、３８の各ベルト摺動面３０、
４０および４２は、上記した駆動側プーリシャフト１２
と略同様の方法で高周波加熱される。但し、駆動側およ
び従動側プーリ３６、３８は、中央部に孔部が形成され
ているため、誘導加熱コイル５０に代替して、図７に示
す誘導加熱コイル８０を用いることができる。The driven pulley shaft 14, the belt sliding surfaces 30 of the driving and driven pulleys 36, 38,
40 and 42 are the drive-side pulley shaft 12 described above.
High frequency heating is carried out in the same manner as in. However, since the drive-side and driven-side pulleys 36 and 38 have a hole formed in the center, the induction heating coil 80 shown in FIG. 7 can be used instead of the induction heating coil 50.
【００３０】この誘導加熱コイル８０では、駆動側およ
び従動側プーリ３６、３８の孔部内壁面に沿った半周コ
イル部８２を含む第１誘導加熱導体部８４を備える他、
誘導加熱コイル５０と同様に構成されており、同一の構
成要素には同一の参照符号を付してその詳細な説明は省
略する。これにより、誘導加熱コイル８０を使用するこ
とによって、誘導加熱コイル５０と同様の効果が得られ
ることになる。The induction heating coil 80 is provided with a first induction heating conductor portion 84 including a half circumference coil portion 82 along the inner wall surface of the hole portion of the driving side and driven side pulleys 36, 38.
The induction heating coil 50 has the same configuration as that of the induction heating coil 50. The same components are designated by the same reference numerals, and detailed description thereof will be omitted. As a result, the same effect as that of the induction heating coil 50 can be obtained by using the induction heating coil 80.
【００３１】[0031]
【発明の効果】本発明に係る誘導加熱コイルによれば、
以下の効果が得られる。According to the induction heating coil of the present invention,
The following effects can be obtained.
【００３２】車両の変速装置を構成する駆動側または従
動側プーリ機構のベルト摺動面を高周波加熱して高周波
焼入れを行う際、前記ベルト摺動面全体を均一に加熱す
ることができるとともに、該ベルト摺動面全体を均一に
冷却することが可能となる。この結果、ベルト摺動面の
全面を所望の硬度に確実に形成することができる。When induction hardening is performed by induction heating the belt sliding surface of the driving side or driven side pulley mechanism constituting the transmission of the vehicle, the entire belt sliding surface can be heated uniformly and It is possible to uniformly cool the entire belt sliding surface. As a result, the entire surface of the sliding surface of the belt can be reliably formed to have a desired hardness.
【図１】本発明の実施形態に係る誘導加熱コイルの斜視
図である。FIG. 1 is a perspective view of an induction heating coil according to an embodiment of the present invention.
【図２】前記誘導加熱コイルの平面図である。FIG. 2 is a plan view of the induction heating coil.
【図３】前記誘導加熱コイルと高周波焼入れが施される
ワークの側面図である。FIG. 3 is a side view of the induction heating coil and a work to be induction hardened.
【図４】前記ワークが組み込まれる変速装置の縦断説明
図である。FIG. 4 is a vertical cross-sectional explanatory view of a transmission in which the work is incorporated.
【図５】前記ワークに対し高周波焼入れを施す状態を示
す平面図である。FIG. 5 is a plan view showing a state where induction hardening is performed on the work.
【図６】前記ワークに対し高周波焼入れを施す状態を示
す縦断面図である。FIG. 6 is a vertical cross-sectional view showing a state where induction hardening is performed on the work.
【図７】他の誘導加熱コイルの斜視図である。FIG. 7 is a perspective view of another induction heating coil.
１０…変速装置 １２、１４…
プーリシャフト １６、１８…プーリ部 ２８、３０…
ベルト摺動面 ３２、３４…ドグ ３６、３８…
プーリ ５０、８０…誘導加熱コイル ５２ａ〜５２
ｅ…円弧部 ５４ａ〜５４ｄ…段部 ５６、５８…
周回コイル部 ６０、６２、８４…誘導加熱導体部 ６４ａ、６４
ｂ…入力端子 ６６…管路 ７０ａ、７０
ｂ…冷却水供給手段10 ... transmission 12, 14 ...
Pulley shaft 16, 18 ... Pulley portion 28, 30 ...
Belt sliding surface 32, 34 ... Dog 36, 38 ...
Pulleys 50, 80 ... Induction heating coils 52a to 52
e ... Arc parts 54a to 54d ... Step parts 56, 58 ...
Circulating coil parts 60, 62, 84 ... Induction heating conductor parts 64a, 64
b ... input terminal 66 ... pipeline 70a, 70
b ... Cooling water supply means
───────────────────────────────────────────────────── フロントページの続き (72)発明者 中田 靖士 埼玉県狭山市新狭山１−10−１ ホンダエ ンジニアリング株式会社内 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Yasushi Nakata 1-10-1 Shin-Sayama, Sayama-shi, Saitama Honda Engineering Co., Ltd.
Claims (1)
動側プーリ機構において、反対側の周縁に突起部を有し
たベルト摺動面を、高周波焼入れを行うために高周波加
熱する誘導加熱コイルであって、 １８０゜以上の中心角を所定の角度毎に分割するととも
に、前記ベルト摺動面の形状に対応して半径が順次大き
くなる第１〜第Ｎ円弧部と、 隣接する前記第１〜第Ｎ円弧部の端部をそれぞれ連結す
る第１〜第（Ｎ−１）段部と、 を有し、 前記突起部の位置に対応する最外周の前記第Ｎ円弧部の
分割角度が、第１〜第（Ｎ−１）円弧部のそれぞれの分
割角度よりも大きな角度に設定されることを特徴とする
誘導加熱コイル。1. An induction heating coil for induction-heating a belt sliding surface having a protrusion on the opposite peripheral edge in a drive-side or driven-side pulley mechanism constituting a transmission of a vehicle for induction hardening. There is a central angle of 180 ° or more divided by a predetermined angle, and first to N-th circular arc portions whose radii gradually increase corresponding to the shape of the belt sliding surface, and the first to Nth adjacent portions. A first to (N-1) th step portion that respectively connects the ends of the Nth arc portion, and the division angle of the Nth arc portion of the outermost periphery corresponding to the position of the protrusion is An induction heating coil, wherein the angle is set to be larger than each division angle of the first to (N-1) th arc portions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17523395A JP3515642B2 (en) | 1995-07-11 | 1995-07-11 | Induction heating coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17523395A JP3515642B2 (en) | 1995-07-11 | 1995-07-11 | Induction heating coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0925519A true JPH0925519A (en) | 1997-01-28 |
| JP3515642B2 JP3515642B2 (en) | 2004-04-05 |
Family
ID=15992600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17523395A Expired - Fee Related JP3515642B2 (en) | 1995-07-11 | 1995-07-11 | Induction heating coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3515642B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008231455A (en) * | 2007-03-16 | 2008-10-02 | Denki Kogyo Co Ltd | High-frequency induction-heating coil |
| US7618338B2 (en) | 2002-06-13 | 2009-11-17 | Ricardo Uk Limited | Cooled pump pulley |
| JP2013051182A (en) * | 2011-08-31 | 2013-03-14 | Neturen Co Ltd | Induction heating coil |
-
1995
- 1995-07-11 JP JP17523395A patent/JP3515642B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7618338B2 (en) | 2002-06-13 | 2009-11-17 | Ricardo Uk Limited | Cooled pump pulley |
| JP2008231455A (en) * | 2007-03-16 | 2008-10-02 | Denki Kogyo Co Ltd | High-frequency induction-heating coil |
| JP2013051182A (en) * | 2011-08-31 | 2013-03-14 | Neturen Co Ltd | Induction heating coil |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3515642B2 (en) | 2004-04-05 |
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