JPH0238909Y2 - - Google Patents
Info
- Publication number
- JPH0238909Y2 JPH0238909Y2 JP1987000862U JP86287U JPH0238909Y2 JP H0238909 Y2 JPH0238909 Y2 JP H0238909Y2 JP 1987000862 U JP1987000862 U JP 1987000862U JP 86287 U JP86287 U JP 86287U JP H0238909 Y2 JPH0238909 Y2 JP H0238909Y2
- Authority
- JP
- Japan
- Prior art keywords
- jacket
- water injection
- movable
- fixed
- injection hole
- 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.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 53
- 238000002347 injection Methods 0.000 claims description 50
- 239000007924 injection Substances 0.000 claims description 50
- 239000000498 cooling water Substances 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 230000006698 induction Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
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)
Description
【考案の詳細な説明】
産業上の利用分野
この考案は高周波加熱用冷却ジヤケツト（以下
ジヤケツトと記す）に関する。[Detailed Description of the Invention] Industrial Application Field This invention relates to a cooling jacket for high frequency heating (hereinafter referred to as a jacket).
従来の技術
例えば車軸受等各種形状の部品に対して高周波
加熱による焼入れが実施されている。BACKGROUND ART For example, parts of various shapes such as car bearings are hardened by high frequency heating.
ところで、一般的にはシリンダー状のワーク内
面焼入れをしようとする場合、硬化深度を浅くか
つ均一に得るために、加熱中にワークの外周面よ
り冷却を行う必要がある。この冷却のために、ワ
ークの寸法や形状、肉厚等に対応したジヤケツト
を選択・使用して冷却水をワークの外面に噴射し
ている。 By the way, when attempting to harden the inner surface of a cylindrical workpiece, it is generally necessary to cool the workpiece from the outer peripheral surface during heating in order to obtain a shallow and uniform hardening depth. For this cooling, cooling water is sprayed onto the outer surface of the workpiece by selecting and using a jacket that corresponds to the size, shape, wall thickness, etc. of the workpiece.
さらに詳細に説明すると、前記車軸受のように
肉厚が部分的に異なるようなワークを高周波焼入
れしようとする場合には、肉厚の薄い部分には所
謂ずぶ焼入れを防止するために、内厚の厚い部分
に比較してより多くの冷却水を当該ワークに向け
て噴射することが必要である。 To explain in more detail, when attempting to induction harden a workpiece that has partially different wall thicknesses, such as the above-mentioned car bearing, the inner thickness is It is necessary to inject more cooling water towards the workpiece compared to the thicker part of the workpiece.
その理由は肉厚の差を無視して肉厚の厚い部分
も薄い部分も一度に高周波焼入れをしようとする
と肉厚が所望の表面硬化層に比して比較的薄いと
きには、肉厚の薄い部分では焼入れによつて生じ
る硬化層の深さ（詐化深度）が深く、ときにはズ
ブ焼入れになり、肉厚の厚い部分では硬化深度が
浅くなるという傾向がある。かかる硬化深度の不
均一化はワークの寿命の低下や部分的クラツクと
いう欠陥を招くおそれがあるからである。 The reason for this is that if you ignore the difference in wall thickness and try to induction harden both the thicker and thinner parts at the same time, if the wall thickness is relatively thin compared to the desired surface hardening layer, the thinner parts will In this case, the depth of the hardened layer (deformation depth) produced by hardening is deep, sometimes resulting in deep hardening, and the hardening depth tends to be shallow in thick parts. This is because such non-uniform hardening depth may lead to a reduction in the service life of the workpiece or defects such as partial cracks.
第４図は従来のジヤケツトを用いて高周波加熱
を行う場合の一例を示す。 FIG. 4 shows an example of high frequency heating using a conventional jacket.
中空円筒状であつて内部側面に小径の水噴射孔
３２Ａおよび大径の水噴射孔３２Ｂが形成された
ジヤケツト３１の内側には、ワーク５が設置され
ており、ワーク５の内側にはカレントトランス６
の２次側に接続された高周波コイル１１および２
１が挿入されている。 A workpiece 5 is installed inside the jacket 31, which has a hollow cylindrical shape and has a small-diameter water injection hole 32A and a large-diameter water injection hole 32B formed on the inner side surface, and a current transformer is installed inside the workpiece 5. 6
High frequency coils 11 and 2 connected to the secondary side of
1 is inserted.
ワーク５の高周波加熱は、高周波コイル１１お
よび２１に高周波電流を通電し同時に前記各水噴
射孔から冷却水を噴射しながら行う。 The high-frequency heating of the workpiece 5 is performed while passing a high-frequency current through the high-frequency coils 11 and 21 and at the same time injecting cooling water from each of the water injection holes.
考案が解決しようとする問題点
しかしながら、前記のワークの形状および寸法
は種々様々であつて、高周波加熱による焼入れを
かかるワークに施すには、前述した理由によりそ
の都度ワークに最適のジヤケツトに交換する必要
がある。この交換のために手間がかかり、高周波
焼入れ作業の生産性が低下するという問題があ
る。また予め種々のジヤケツトを準備しておく必
要があるので大変に煩雑である。Problems to be Solved by the Invention However, the shapes and dimensions of the above-mentioned workpieces vary widely, and in order to harden such workpieces by high-frequency heating, it is necessary to replace the jacket with the most suitable jacket for the workpiece each time for the reasons mentioned above. There is a need. There is a problem in that this replacement is time-consuming and reduces the productivity of induction hardening work. Furthermore, it is very complicated because it is necessary to prepare various jackets in advance.
本考案は上記事情に鑑みて創案されたもので、
ワークの寸法、形状、肉厚等が異なる場合におい
ても、ジヤケツト交換の頻度をなるべく少なくす
ることができるジヤケツトを提供することを目的
としている。 This invention was devised in view of the above circumstances.
It is an object of the present invention to provide a jacket that can reduce the frequency of jacket replacement as much as possible even when workpieces have different dimensions, shapes, wall thicknesses, etc.
問題を解決するための手段
本考案のジヤケツトは、固定ジヤケツト水噴射
孔を有する固定ジヤケツトと、可動ジヤケツト水
噴射孔を有する可動ジヤケツトとを具備してお
り、かつ前記可動ジヤケツトは固定ジヤケツトの
内側において水密かつ回転可能に取付けられてお
り、可動ジヤケツト水噴射孔が固定ジヤケツト水
噴射孔に重ね合わされた共孔状態にて当該可動ジ
ヤケツトを固定ジヤケツトに固定せしめたあと、
可動ジヤケツト水噴射孔から冷却水を噴射する。Means for Solving the Problem The jacket of the present invention includes a fixed jacket having a fixed jacket water injection hole and a movable jacket having a movable jacket water injection hole, and the movable jacket is arranged inside the fixed jacket. The movable jacket is installed in a watertight and rotatable manner, and after the movable jacket is fixed to the fixed jacket with the movable jacket water injection hole superimposed on the fixed jacket water injection hole, the movable jacket is fixed to the fixed jacket.
Cooling water is injected from the movable jacket water injection hole.
作 用
高周波焼入れをしようとするワークの形状を考
慮して、可動ジヤケツトを固定ジヤケツトに対し
て回転せしめることにより、前記ワークに最適な
噴射パターンに設定し、冷却水を噴射する。Function: By rotating the movable jacket relative to the fixed jacket in consideration of the shape of the workpiece to be induction hardened, a jetting pattern optimal for the workpiece is set and cooling water is jetted.
実施例 以下本考案の一実施例について説明する。Example An embodiment of the present invention will be described below.
第１図ａは本考案によるジヤケツトの斜視図、
第１図ｂは第１図のＡ−Ａ断面図、第２図ａは固
定ジヤケツトの内周部に設けた固定ジヤケツト水
噴射孔の配置図、第２図ｂは可動ジヤケツトの円
筒部に設けた可動ジヤケツト水噴射孔の配置図、
第３図ａ〜ｃは可動ジヤケツトの基準点と固定ジ
ヤケツトの基準点とを合致させた場合、15度ずら
せた場合、30度ずらせた場合の固定ジヤケツト水
噴射孔と可動ジヤケツト水噴射孔との位置を、そ
れぞれの場合について示す。 FIG. 1a is a perspective view of a jacket according to the present invention;
Fig. 1b is a sectional view taken along line A-A in Fig. 1, Fig. 2a is a layout diagram of the fixed jacket water injection holes provided in the inner peripheral part of the fixed jacket, and Fig. 2b is a diagram showing the arrangement of the fixed jacket water injection holes provided in the cylindrical part of the movable jacket. A layout diagram of the movable jacket water injection hole,
Figures 3a to 3c show the relationship between the fixed jacket water injection hole and the movable jacket water injection hole when the reference point of the movable jacket and the reference point of the fixed jacket are aligned, 15 degrees apart, and 30 degrees apart. The positions are shown for each case.
固定ジヤケツト１００は中空円筒状の構造であ
り、内周部１０３、外周部１０４、上端部１０
５、下端部１０６によつて閉鎖された空間である
ジヤケツト室１０２を有する。 The fixed jacket 100 has a hollow cylindrical structure, and includes an inner peripheral part 103, an outer peripheral part 104, and an upper end part 10.
5. It has a jacket chamber 102 which is a space closed by a lower end portion 106.
外周部１０４に形成されたホース接続金具１０
７には、ホース１０８が接続されておりこのホー
ス１０８によつて冷却水がジヤケツト室１０２に
送られる。内周部１０３には複数の略長円形状の
固定ジヤケツト水噴射孔１０９が軸方向に開孔さ
れている。 Hose connection fitting 10 formed on the outer peripheral part 104
A hose 108 is connected to 7, and cooling water is sent to the jacket chamber 102 by this hose 108. A plurality of substantially oval fixed jacket water injection holes 109 are opened in the axial direction in the inner peripheral portion 103 .
円筒状の可動ジヤケツト２００の円筒部２０１
は固定ジヤケツト１００の内周部１０３の内面に
回転可能に、かつ水密に挿入嵌合されており、可
動ジヤケツト２００の上端部に形成されたフラン
ジ部２０５の下面は、固定ジヤケツト１００の上
端部１０５の上面と摺動可能に当接している。 Cylindrical portion 201 of cylindrical movable jacket 200
is rotatably and watertightly inserted and fitted into the inner surface of the inner circumference 103 of the fixed jacket 100, and the lower surface of the flange 205 formed at the upper end of the movable jacket 200 is connected to the upper end 105 of the fixed jacket 100. It is in slidable contact with the upper surface of.
前記円筒部２０１には、複数の略円形状の可動
ジヤケツト水噴射孔２０９が開孔されている。可
動ジヤケツト２００のフランジ部２０５には、フ
ランジ部２０５の外周端に沿つて３個の溝２０２
が形成されている。 The cylindrical portion 201 is provided with a plurality of substantially circular movable jacket water injection holes 209 . The flange portion 205 of the movable jacket 200 has three grooves 202 along the outer peripheral edge of the flange portion 205.
is formed.
各溝２０２の円周角は約45度である。各溝２０
２の底部には円弧状の長孔２０３が形成されてい
る。上端部１０５の上面で前記各長孔２０３に対
応する位置には、各一個のネジ孔１０６が形成さ
れている。長孔２０３およびネジ孔１０６に挿入
されたネジ２０４によつて可動ジヤケツト２００
が固定ジヤケツト１００に固定され、ネジ２０４
を少し弛めることにより、固定ジヤケツト１００
と可動ジヤケツト２００とが相対的に回転可能と
なり、ネジ２０４を締め付けることにより再び可
動ジヤケツト２００を固定ジヤケツト１００に固
定できるようになつている。 The circumferential angle of each groove 202 is approximately 45 degrees. Each groove 20
An arc-shaped elongated hole 203 is formed at the bottom of 2. One screw hole 106 is formed on the upper surface of the upper end portion 105 at a position corresponding to each of the elongated holes 203 . The movable jacket 200 is fixed by the screw 204 inserted into the elongated hole 203 and the screw hole 106.
is fixed to the fixed jacket 100, and the screw 204
By slightly loosening the fixed jacket 100
The movable jacket 200 and the movable jacket 200 can be rotated relative to each other, and by tightening the screw 204, the movable jacket 200 can be fixed to the fixed jacket 100 again.
固定ジヤケツト水噴射孔１０９は、第２図ａに
示すように、内周部１０３の上部、中央部、下部
のそれぞれにおいて、円周角にて45度のピツチで
設けられており、また隣接する上部と中央部の、
中央部と下部の、下部と上部の固定ジヤケツト水
噴射孔１０９は、円周角にて15度の間隔で設けら
れている。三角マーク１１０は内周部１０３上に
想定した円周角の基準点であつて、内周部１０３
の上部の或る固定ジヤケツト水噴射孔１０９の中
央点を０度点とし、この０度点を示している。 As shown in FIG. 2a, the fixed jacket water injection holes 109 are provided at a pitch of 45 degrees in the circumferential angle at the upper, middle, and lower portions of the inner circumferential portion 103, respectively. upper and middle parts,
The lower and upper fixed jacket water injection holes 109 in the center and lower portions are provided at intervals of 15 degrees in circumferential angle. The triangular mark 110 is a reference point for the assumed circumferential angle on the inner circumferential portion 103, and
The center point of a certain fixed jacket water injection hole 109 at the upper part of the figure is defined as the 0 degree point, and this 0 degree point is shown.
可動ジヤケツト水噴射孔２０９は、第２図ｂに
示すように、上部、中央部、下部のそれぞれの固
定ジヤケツト水噴射孔１０９に対応するように、
円筒部２０１の上部、中央部、下部に設けられて
おり、また隣接する上部と中央部の、中央部と下
部の、下部と上部の可動ジヤケツト水噴射孔２０
９は円周角にて15度の間隔で設けられている。 As shown in FIG. 2b, the movable jacket water injection holes 209 correspond to the fixed jacket water injection holes 109 in the upper, middle, and lower portions, respectively.
The movable jacket water injection holes 20 are provided at the upper, middle, and lower parts of the cylindrical part 201, and are adjacent to each other.
9 are provided at intervals of 15 degrees on the circumference.
三角マーク２１０は、円筒部２０１の上に想定
した円周角の基準点であつて、円筒部２０１の上
部の或る可動ジヤケツト水噴射孔２０９の中央点
を０度点とし、この０度点を示している。 The triangular mark 210 is a reference point of the assumed circumferential angle on the cylindrical part 201, and the center point of a certain movable jacket water injection hole 209 in the upper part of the cylindrical part 201 is the 0 degree point. It shows.
上部の可動ジヤケツト水噴射孔209は、三角マ
ーク２１０より45度のピツチで設けられており、
中央部の可動ジヤケツト水噴射孔209は、三角マ
ーク２１０，90度、180度、−135度の各点からそ
れぞれ15度の点およびこの15度の点から順次45
度、15度の点に設けられており、下部の可動ジヤ
ケツト水噴射孔２０９は三角マーク２１０，90
度、180度、−135度の各点からそれぞれ30度の点
およびこの30度の点から順次15度、15度、15度の
点に設けられている。 The upper movable jacket water injection hole 209 is provided at a pitch of 45 degrees from the triangular mark 210.
The movable jacket water injection hole 209 in the center is located at a point 15 degrees from each of the triangular marks 210, 90 degrees, 180 degrees, and -135 degrees, and 45 degrees sequentially from this 15 degree point.
The movable jacket water injection hole 209 at the bottom is located at the triangular mark 210, 90.
They are provided at points 30 degrees from each point of 180 degrees, 180 degrees, and -135 degrees, and at points 15 degrees, 15 degrees, and 15 degrees sequentially from these 30 degrees.
いまホース１０８より冷却水を送ると、可動ジ
ヤケツト水噴射孔２０９が固定ジヤケツト水噴射
孔１０９の上に重なつて共孔状態となつている場
合には、当該可動ジヤケツト水噴射孔２０９から
冷却水が噴射される。 If cooling water is now sent from the hose 108, if the movable jacket water injection hole 209 overlaps the fixed jacket water injection hole 109 and is in a co-hole state, the cooling water will be sent from the movable jacket water injection hole 209. is injected.
第３図ａは三角マーク１１０と三角マーク２１
０とが一致している場合であつて、固定ジヤケツ
ト水噴射孔１０９に重なつている可動ジヤケツト
水噴射孔２０９Ａからのみ冷却水が噴射される。 Figure 3a shows the triangular mark 110 and the triangular mark 21.
0, cooling water is injected only from the movable jacket water injection hole 209A that overlaps the fixed jacket water injection hole 109.
即ち、同図の場合は上部の肉厚が薄く、中央部
と下部が厚いようなワークに対応する専用ジヤケ
ツトを用いた場合と同じ作用をなす。 That is, in the case shown in the figure, the same effect is achieved as when a dedicated jacket is used for a workpiece whose upper part is thinner and whose center and lower parts are thick.
第３図ｂは、ネジ２０４をゆるめてて可動ジヤ
ケツト２００を矢印Ｂの方向へ15度回転させた場
合、第３図ｃは同じく30度回転させた場合であつ
て第３図ａと同じく、いずれの場合にも前記した
可動ジヤケツト水噴射孔２０９Ａのみから冷却水
が噴射される。 Fig. 3b shows the case where the screw 204 is loosened and the movable jacket 200 is rotated 15 degrees in the direction of arrow B, and Fig. 3c shows the case when it is also rotated 30 degrees, and as in Fig. 3a, In either case, cooling water is injected only from the movable jacket water injection hole 209A.
即ち、第３図ｂに示した場合は、短小のワーク
でかつ中央部が下部に比較して薄肉になつている
ようなワークに適用される。第３図ｃは、薄肉リ
ング状のワークに適用される。 That is, the case shown in FIG. 3b is applied to a short workpiece whose center portion is thinner than its lower portion. FIG. 3c is applied to a thin ring-shaped workpiece.
なお可動ジヤケツト２００を矢印Ｂと反対の方
向へ15度および30度回転させた場合は、それぞれ
第３図ｃおよびｂと同様の噴射パターンとなる。 Note that when the movable jacket 200 is rotated 15 degrees and 30 degrees in the direction opposite to arrow B, the spray patterns are similar to those shown in FIGS. 3c and 3b, respectively.
従つて本考案のジヤケツトは３種類の噴射パタ
ーンを得ることができるので、１個のジヤケツト
でもつて、３個の異なつたジヤケツトを使用した
のと同じ効果が得られたことになる。 Therefore, since the jacket of the present invention can provide three types of spray patterns, the same effect as using three different jackets can be obtained with one jacket.
前記した固定ジヤケツト水噴射孔１０９と可動
ジヤケツト水噴射孔２０９の配列は、一例を示し
たものであつて、この他にも種々の配列が考えら
れる。即ち噴射する水は、上部、中央部、下部の
３段にこだわらず何段としてもよく、また前記円
周角のピツチも15度にこだわることはないので、
多くの噴射パターンを得ることが出来る。 The arrangement of the fixed jacket water injection holes 109 and the movable jacket water injection holes 209 described above is an example, and various other arrangements are possible. In other words, the water to be injected may be in any number of stages without being restricted to the three stages of the upper, middle, and lower parts, and the pitch of the circumferential angle is not limited to 15 degrees.
Many spray patterns can be obtained.
考案の効果
前記したように、本考案によれば可動ジヤケツ
トを回転可能とし、可動ジヤケツト水噴射孔が固
定ジヤケツト水噴射孔に重ね合わされた共孔状態
にて当該可動ジヤケツトを固定ジヤケツトに固定
せしめることにより、固定ジヤケツト水噴射孔と
可動ジヤケツト水噴射孔の配列に応じて、可動ジ
ヤケツト水噴射から種々のパターンの水噴射が得
られるので、ワークの形状、寸法、肉厚が異なる
場合でも、いちいちジヤケツトを交換する必要は
なく、従つて冷却作業の作業性の向上が得られ
る。またジヤケツトの数も少なくなるので全体と
してのコストを低減することが可能となる。Effects of the Invention As described above, according to the present invention, the movable jacket is made rotatable, and the movable jacket is fixed to the fixed jacket with the movable jacket water injection holes superimposed on the fixed jacket water injection holes in a co-hole state. As a result, various patterns of water jet can be obtained from the movable jacket water jet depending on the arrangement of the fixed jacket water jet hole and the movable jacket water jet hole. There is no need to replace it, and therefore the efficiency of cooling work can be improved. Furthermore, since the number of jackets is reduced, it is possible to reduce the overall cost.
第１図ａは本考案によるジヤケツトの斜視図、
第１図ｂは第１図のＡ−Ａ断面図、第２図ａは固
定ジヤケツトの内周部に設けた固定ジヤケツト水
噴射孔の配置図、第２図ｂは可動ジヤケツトの円
筒部に設けた可動ジヤケツト水噴射孔の配置図、
第３図ａ〜ｃは可動ジヤケツトの基準点と固定ジ
ヤケツトの基準点とを合致させた場合、15度ずら
せた場合、30度ずらせた場合の固定ジヤケツト水
噴射孔と可動ジヤケツト水噴射孔との位置、第４
図は従来のジヤケツトを用いて高周波加熱を行う
場合の一例をそれぞれ示す。
１００……固定ジヤケツト、１０２……ジヤケ
ツト室、１０３……内周部、１０４……外周部、
１０５……上端部、１０６……ネジ孔、１０９…
…固定ジヤケツト水噴射孔、１１０，２１０……
三角マーク、２００……可動ジヤケツト、２０１
……円筒部、２０２……溝、２０３……長孔、２
０４……ネジ、２０５……フランジ部、２０９…
…可動ジヤケツト水噴射孔、２０９Ａ……可動ジ
ヤケツト水噴射孔。
FIG. 1a is a perspective view of a jacket according to the present invention;
Fig. 1b is a sectional view taken along line A-A in Fig. 1, Fig. 2a is a layout diagram of the fixed jacket water injection holes provided in the inner peripheral part of the fixed jacket, and Fig. 2b is a diagram showing the arrangement of the fixed jacket water injection holes provided in the cylindrical part of the movable jacket. A layout diagram of the movable jacket water injection hole,
Figures 3a to 3c show the relationship between the fixed jacket water injection hole and the movable jacket water injection hole when the reference point of the movable jacket and the reference point of the fixed jacket are aligned, 15 degrees apart, and 30 degrees apart. position, 4th
The figures each show an example of high frequency heating using a conventional jacket. 100... fixed jacket, 102... jacket chamber, 103... inner peripheral part, 104... outer peripheral part,
105...Top end, 106...Screw hole, 109...
...Fixed jacket water injection hole, 110, 210...
Triangular mark, 200...Movable jacket, 201
... Cylindrical part, 202 ... Groove, 203 ... Long hole, 2
04...Screw, 205...Flange part, 209...
...Movable jacket water injection hole, 209A...Movable jacket water injection hole.
Claims (1)
トと、可動ジヤケツト水噴射孔を有する可動ジヤ
ケツトとを具備しており、かつ前記可動ジヤケツ
トは固定ジヤケツトの内側において水密かつ回転
可能に取付けられており、可動ジヤケツト水噴射
孔が固定ジヤケツト水噴射孔に重ね合わされた共
孔状態にて当該可動ジヤケツトを固定ジヤケツト
に固定せしめることにより、可動ジヤケツト水噴
射孔から噴射される冷却水の噴射パターンを可変
にしたことを特徴とする高周波加熱用冷却ジヤケ
ツト。 The movable jacket is equipped with a fixed jacket having a fixed jacket water injection hole and a movable jacket having a movable jacket water injection hole, and the movable jacket is installed watertightly and rotatably inside the fixed jacket, and the movable jacket has a water injection hole. By fixing the movable jacket to the fixed jacket with the injection holes superimposed on the fixed jacket water injection holes, the injection pattern of the cooling water injected from the movable jacket water injection holes is made variable. Cooling jacket for high frequency heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987000862U JPH0238909Y2 (en) | 1987-01-07 | 1987-01-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987000862U JPH0238909Y2 (en) | 1987-01-07 | 1987-01-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63110552U JPS63110552U (en) | 1988-07-15 |
| JPH0238909Y2 true JPH0238909Y2 (en) | 1990-10-19 |
Family
ID=30778231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987000862U Expired JPH0238909Y2 (en) | 1987-01-07 | 1987-01-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0238909Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104357624A (en) * | 2014-11-26 | 2015-02-18 | 宁夏机械研究院股份有限公司 | Railway bearing inner race mold retaining quenching device |
-
1987
- 1987-01-07 JP JP1987000862U patent/JPH0238909Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104357624A (en) * | 2014-11-26 | 2015-02-18 | 宁夏机械研究院股份有限公司 | Railway bearing inner race mold retaining quenching device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63110552U (en) | 1988-07-15 |
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