JPH07192930A - Belleville-spring clamp device for transformer core with gap - Google Patents
Belleville-spring clamp device for transformer core with gapInfo
- Publication number
- JPH07192930A JPH07192930A JP5330884A JP33088493A JPH07192930A JP H07192930 A JPH07192930 A JP H07192930A JP 5330884 A JP5330884 A JP 5330884A JP 33088493 A JP33088493 A JP 33088493A JP H07192930 A JPH07192930 A JP H07192930A
- Authority
- JP
- Japan
- Prior art keywords
- jack
- gap
- disc spring
- oil pressure
- tie rod
- 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
Landscapes
- Housings And Mounting Of Transformers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、半導体電力変換装置用
変圧器、または電力安定供給のために主にケーブル式の
送電系統に組み込まれる分路リアクトル等に使用され
る、ギャップ付鉄心変圧器の皿バネ締付け装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transformer for a semiconductor power converter or an iron core transformer with a gap used mainly for a shunt reactor or the like incorporated in a cable type power transmission system for stable power supply. Related to the disc spring tightening device.
【０００２】[0002]
【従来の技術】近年、磁気浮上式鉄道用の電源などに、
電力会社の電力系統から商用周波数の三相交流を受電
し、一旦コンバータにより直流に変換し、平滑コンデン
サを充電し、その平滑コンデンサを直流電源としたイン
バータにより任意の可変電圧・可変周波数の電力を得る
半導体電力変換装置が用いられるようになってきてい
る。この変換装置を構成する要素の中に、ギャップ付鉄
心変圧器を使用した半導体電力変換装置が使用されてい
る。2. Description of the Related Art In recent years, power supplies for magnetic levitation railways,
A commercial frequency three-phase alternating current is received from the power system of the electric power company, and once converted to direct current by the converter, the smoothing capacitor is charged and the variable voltage / variable frequency power is supplied by the inverter using the smoothing capacitor as the DC power source. Obtaining semiconductor power converters have been used. A semiconductor power converter using a core transformer with a gap is used among the elements constituting this converter.
【０００３】通常の変圧器では、一般に鉄損・励磁電流
及び振動・騒音をより小さくするために、変圧器鉄心を
構成する珪素鋼板接合部の隙間を小さくして、鉄心磁気
回路の磁気抵抗を小さくしている。しかし半導体電力変
換装置に使用される変換器用変圧器では、その鉄心の磁
気抵抗をある程度の大きさにするために磁気的絶縁物の
ギャップを取付けた鉄心が採用されている。In general transformers, in general, in order to further reduce iron loss, exciting current, vibration, and noise, the gap between the silicon steel plate joints constituting the transformer iron core is made small to reduce the magnetic resistance of the iron core magnetic circuit. I'm making it small. However, converter transformers used in semiconductor power converters employ an iron core provided with a gap of a magnetic insulator in order to make the magnetic resistance of the iron core to a certain extent.
【０００４】このギャップ付鉄心を採用した変圧器及び
リアクトル（以下ギャップ付鉄心変圧器という）は、通
常の変圧器と異なり、鉄心にギャップ部分があるため鉄
心を構成する珪素鋼板が機械的に分離されており、鉄心
の外周にコイルが巻装されている。一方、この鉄心のギ
ャップ部分には相当の磁気吸引・反発力が発生するが、
変圧器として構成するためには鉄心ギャップの磁気吸引
・反発力とコイルの締付力を合わせた所定の締付力でこ
れらを機械的に締付け保持しておく必要がある。この締
付けのために相当のバネ定数を持った皿バネを利用した
締付け装置が使用されている。A transformer and a reactor (hereinafter referred to as an iron core transformer with a gap) using the iron core with a gap have a gap portion in the iron core, which is different from an ordinary transformer, so that the silicon steel plate forming the iron core is mechanically separated. The coil is wound around the outer circumference of the iron core. On the other hand, considerable magnetic attraction and repulsive force are generated in the gap part of the iron core,
In order to configure the transformer, it is necessary to mechanically clamp and hold the magnetic attraction / repulsive force of the iron core gap and the coil clamping force with a predetermined clamping force. For this tightening, a tightening device using a disc spring having a considerable spring constant is used.
【０００５】このようなギャップ付鉄心変圧器の中身
と、皿バネ締付け装置及び組立て用治具を、図３〜図５
を用いて具体的に説明する。まず、図５は（ａ）及び
（ｂ）は、それぞれタンク内部に収納されているギャッ
プ付鉄心変圧器の正面断面図及び側面断面図である。図
５に示すように、下部タンク１８とタンクカバー１９で
構成されるタンク内に、キャップ付鉄心変圧器が収納さ
れている。ギャップ付変圧器は、上部に磁気ギャップ１
５を有する鉄心１４と、その鉄心１４の外周にコイル１
６が巻装されている。鉄心１４は下部クランプ１３と上
部クランプ１で前後を挟まれ、上下各クランプ間はクロ
スバー１７で連結されている。上部クランプ１と下部ク
ランプ１３を連結するタイロッド２を、鉄心ギャップ１
５とコイル１６の両者を平面上で均等に締付けできるよ
うに皿バネ装置３と共に配置している。The contents of such a core transformer with a gap, the disc spring tightening device and the assembling jig are shown in FIGS.
Will be specifically described. First, FIGS. 5A and 5B are a front sectional view and a side sectional view, respectively, of a core transformer with a gap housed inside a tank. As shown in FIG. 5, an iron core transformer with a cap is housed in a tank composed of a lower tank 18 and a tank cover 19. The transformer with a gap has a magnetic gap 1 at the top.
5, and a coil 1 on the outer periphery of the iron core 14.
6 is wound. The iron core 14 is sandwiched between the lower clamp 13 and the upper clamp 1, and the upper and lower clamps are connected by a crossbar 17. Attach the tie rod 2 connecting the upper clamp 1 and the lower clamp 13 to the iron core gap 1
Both the coil 5 and the coil 16 are arranged together with the disc spring device 3 so that they can be evenly tightened on a plane.
【０００６】次に、皿バネ部分は、図４で示すように上
部クランプ１の上面から突出したタイロッド２の上端部
に、皿バネ３及び座金４及びナット５、６からなる皿バ
ネ締付け装置をおいて、これによってタイロッド２の軸
方向に所定の締付け力を発生させて、上下各クランプ
１，１３からクロスバー１７を介して鉄心のギャップコ
イル１５とコイル１６を機械的に締付け保持するように
構成されている。Next, as shown in FIG. 4, the disc spring portion is provided with a disc spring tightening device including a disc spring 3, a washer 4 and nuts 5 and 6 on the upper end of the tie rod 2 protruding from the upper surface of the upper clamp 1. By this, a predetermined tightening force is generated in the axial direction of the tie rod 2 so that the gap coil 15 and the coil 16 of the iron core are mechanically tightened and held from the upper and lower clamps 1 and 13 via the crossbar 17. It is configured.
【０００７】一方、製作組立て状態での皿バネ締付け装
置は、図３に示すように、上部クランプ１の上面に取り
付けて、所定の締付け力を得るために選定した皿バネ３
と、座金兼用ジャッキ台１１と、皿バネ締付け力の調整
及び座金の固定のためのナット５と緩み止め用ナット６
から構成されている。さらにこの皿バネ締付け装置の上
方には、一時的に締付け用治具のジャッキ受け１２と油
圧ジャッキ１０が組立てられていて、変圧器中身各部品
の取付け完了状態で油圧ジャッキ１０に所要の油圧をか
けることにより加圧締付けされる。その詳細を以下に説
明する。On the other hand, the disc spring tightening device in the assembled state is mounted on the upper surface of the upper clamp 1 as shown in FIG. 3 and selected to obtain a predetermined tightening force.
, A washer-equipped jack stand 11, a nut 5 for adjusting the disc spring tightening force and a washer, and a loosening prevention nut 6.
It consists of Further, a jack receiver 12 of a tightening jig and a hydraulic jack 10 are temporarily assembled above the disc spring tightening device, and a required hydraulic pressure is applied to the hydraulic jack 10 in a state where the transformer contents are completely mounted. It is tightened by pressure. The details will be described below.
【０００８】油圧ジャッキ１０は２個を１セットにして
タイロッド２を中心にして対称に配置し、この油圧ジャ
ッキ１０による油圧力Ｐ1 をナット６で固定されたジャ
ッキ受け１２を介してタイロッド２の軸方向に伝達し、
皿バネ３を押し下げて、その反発力として鉄心ギャップ
１５とコイル１６の締付力Ｐを発生させるように組立て
られている。なお、油圧ジャッキ１０とジャッキ受け１
２は、固定用ナット５をねじ込み下方へ降ろし、座金兼
用ジャッキ台１１を位置決めした後取り外し、ジャッキ
受け１２を外すために一旦取り出した上部緩み止め用ナ
ット６は再度タイロッド２にねじ込み、先に座金兼用ジ
ャッキ台１１を固定しているナット５にあてがい、これ
を強固に締付けて皿バネ締付け装置の緩み止めをする。
ここまでの作業で皿バネ締付け装置の組立てが完了し、
図４に示す完成製品状態となる。Two hydraulic jacks 10 are arranged in a set symmetrically with the tie rod 2 as the center, and the hydraulic pressure P1 by the hydraulic jack 10 is passed through the jack receiver 12 fixed by the nut 6 to the axis of the tie rod 2. Transmission in the direction
It is assembled so that the disc spring 3 is pushed down to generate a tightening force P of the iron core gap 15 and the coil 16 as a repulsive force. In addition, the hydraulic jack 10 and the jack receiver 1
2, the fixing nut 5 is screwed down, the washer / jack jack stand 11 is positioned and then removed, and the upper locking nut 6 once taken out to remove the jack receiver 12 is screwed into the tie rod 2 again, and the washer is first It is applied to the nut 5 fixing the dual-purpose jack base 11 and is firmly tightened to prevent the disc spring tightening device from loosening.
By the work up to here, the assembly of the disc spring tightening device is completed,
The finished product state shown in FIG. 4 is obtained.
【０００９】[0009]
【発明が解決しようとする課題】しかしながら、図３に
示すような皿バネ締付け用治具の組立て構造では、皿バ
ネ締付け装置１ケ所に対し油圧ジャッキを２個使用する
ため、皿バネ締付け装置の取付け取外しに手間がかかる
ばかりか、ジャッキに油圧をかける場合にはジャッキを
定位置に収めたままでジャッキ台とジャッキ受けに正し
くジャッキ力がかかるように、数名の作業者がジャッキ
のホース部分を手で押さえている必要がある。However, in the assembly structure of the disc spring tightening jig as shown in FIG. 3, two hydraulic jacks are used for one place of the disc spring tightening device. Not only does it take a lot of time to install and remove, but when hydraulic pressure is applied to the jack, several people should work on the hose part of the jack so that the jack base and jack receiver can be properly jacked with the jack in place. Must be held by hand.
【００１０】また、より大容量のギャップ付鉄心変圧器
では、使用するジャッキのサイズが大型化し、皿バネ締
付け治具自体も大きなスペースを必要とするようにな
る。逆に、小型の変圧器の場合には中身サイズそのもの
が小さくなるので、皿バネ締付け装置用に使用できるス
ペースは相対的に縮小されて締付け作業が困難になって
くる。さらに、皿バネの緩み止め用ナットより上方に残
るタイロッド部分は、皿バネ締付け作業が終了した後は
不要となる部分であるが、金属粉発生や中身の大気露出
時間短縮等の制約から無理に切断することなく残してあ
る。Further, in the iron core transformer with a gap having a larger capacity, the size of the jack to be used becomes large, and the disc spring tightening jig itself requires a large space. On the other hand, in the case of a small transformer, the size itself is small, so that the space available for the disc spring tightening device is relatively reduced and the tightening work becomes difficult. Furthermore, the tie rod part that remains above the loosening prevention nut of the disc spring is unnecessary after the disc spring tightening work is completed, but due to restrictions such as metal powder generation and shortening of the atmospheric exposure time of the contents, it is impossible. It is left without cutting.
【００１１】一方、変圧器中身を収納するタンクカバー
の高さ寸法は、中身の最大高さ部分によって決まるより
も多くの場合は前記タイロッドの高さによって決まるの
で、タイロッドの不要部分の高さ寸法に相当するタンク
高さ部分が、絶縁油・鋼材を含めた材料費等の変圧器全
体のコスト増加要因となっている。On the other hand, since the height of the tank cover for accommodating the contents of the transformer is determined by the height of the tie rod in most cases than by the maximum height of the contents, the height of the unnecessary portion of the tie rod is determined. The height of the tank, which is equivalent to, is a factor that increases the cost of the entire transformer, such as the cost of materials including insulating oil and steel.
【００１２】本発明は、前記事情に鑑みてなされたもの
で、その目的は皿バネ締付け作業時の繁雑な手間を削減
し、作業上の安全をも確保すると共に、変圧器の中身寸
法を小さくすることにより変圧器の製作工数を下げて組
み立てやすく、より安価なギャップ付鉄心変圧器を提供
することにある。The present invention has been made in view of the above circumstances, and an object thereof is to reduce complicated labor during tightening of disc springs, to secure work safety, and to reduce the size of a transformer. By doing so, it is possible to reduce the manufacturing man-hours of the transformer, make it easy to assemble, and provide a more inexpensive iron core transformer with a gap.
【００１３】[0013]
【課題を解決するための手段】本発明は上記目的を達成
するために、ギャップ付鉄心変圧器またはリアクトルの
鉄心ギャップ及びコイルを皿バネで締付けるギャップ付
鉄心変圧器の皿バネ締付け装置において、前記皿バネ上
に設けた座金と、この座金の上面にタイロッドの中心軸
の延長線上に直列に配置する逆Ｕ字型のジャッキ台と、
このジャッキ台の上方に間隔をあけて取付けた中空箱型
のナット機能付ジャッキ受けと、前記間隔部に装着され
る油圧ジャッキとを備え、前記油圧ジャッキに油圧をか
けこの力によって前記皿バネを圧縮することにより当該
皿バネの反発力を前記タイロッドに伝達し、前記鉄心ギ
ャップ及びコイルに所定の締付け力を加えてなる構成と
したことを特徴とする。In order to achieve the above-mentioned object, the present invention provides a disc spring tightening device for an iron core transformer with a gap, wherein an iron core gap and a coil of a reactor are clamped with a disc spring. A washer provided on the disc spring, and an inverted U-shaped jack stand arranged on the upper surface of the washer in series on an extension line of the center axis of the tie rod,
A hollow box-type jack receiver with a nut function, which is mounted above the jack base with a gap, and a hydraulic jack mounted in the gap portion are provided, and a hydraulic pressure is applied to the hydraulic jack to force the disc spring to move. By compressing, the repulsive force of the disc spring is transmitted to the tie rod, and a predetermined tightening force is applied to the iron core gap and the coil.
【００１４】[0014]
【作用】本発明の皿バネ締付け装置用治具は、タイロッ
ドの中心軸の延長線上に置いた１ケの油圧ジャッキで皿
バネを締付けて、この反発力でジャッキ受けを介してダ
イロッドを引き上げるように構成しているので、従来の
締付け装置用治具のようにジャッキ２ケにより上部に配
置したジャッキ受けを突き上げる構成のものに比べて、
治具自体の大きさを約半分にすることができる。また、
ジャッキを置く位置をタイロッドの横から上方に移動さ
せたことによりジャッキ高さに相当する分のタイロッド
長さを短くすることができる。これによりち変圧器タン
クの高さ全体を低くできる。According to the jig for the disc spring tightening device of the present invention, the disc spring is tightened by one hydraulic jack placed on the extension line of the central axis of the tie rod, and the reed force pulls up the die rod through the jack receiver. Since it is configured as, compared to the conventional structure of the jig for the tightening device, which is configured to push up the jack receiver arranged at the top with two jacks,
The size of the jig itself can be halved. Also,
By moving the position where the jack is placed from the side of the tie rod upward, the length of the tie rod corresponding to the height of the jack can be shortened. This reduces the overall height of the transformer tank.
【００１５】[0015]
［実施例の構成］以下、本発明の皿バネ締付け装置用治
具の一実施例を図１を用いて説明する。同図（ａ）は同
図（ｂ）のＸ方向から見た側面図、同図（ｂ）は同図
（ａ）のＹ方向から見た側面図、同図（ｃ）は平面図で
ある。なお、従来技術と同一部分には同一符号を付し重
複説明は省略する。[Structure of Embodiment] An embodiment of the disc spring tightening device jig of the present invention will be described below with reference to FIG. The figure (a) is a side view seen from the X direction in the figure (b), the figure (b) is a side view seen from the Y direction in the figure (a), and the figure (c) is a plan view. . The same parts as those of the conventional technique are designated by the same reference numerals, and duplicate description will be omitted.
【００１６】図１に示すように、下部クランプに下端部
を固定し（詳細図示せず）、上部クランプ１の取り付け
用穴を貫通して取り付けられているタイロッド２にこれ
を貫通させて上部クランプ１の上面に皿バネ３と座金４
とを置く、座金４の上面には皿バネ３の反発力をタイロ
ッド２ヘ伝達するためのナット５と緩み止め用のナット
６を重ねて緩くねじ込んでおく。As shown in FIG. 1, a lower end portion is fixed to a lower clamp (not shown in detail), and a tie rod 2 penetrating through a mounting hole of the upper clamp 1 is penetrated through the tie rod 2 to upper clamp. 1 Belleville spring 3 and washer 4 on top
On the upper surface of the washer 4, a nut 5 for transmitting the repulsive force of the disc spring 3 to the tie rod 2 and a loosening prevention nut 6 are overlapped and loosely screwed.
【００１７】次に、このタイロッド２の上端ネジ部に、
ジャッキ台９との間にジャッキ１０を装着できるように
し、また、下部側の板部分にねじ加工を施したナット機
能付き中空箱型のジャッキ受け７をねじ込み固定する。
この時、ジャッキ受け７は手回しでねじ込むことがで
き、工具を使用して強固に締付ける必要はない。さら
に、タイロッド２の中心軸の延長線上に配置する逆Ｕ字
型のジャッキ台９を、ジャッキ受け７の下部板部分をま
たがせるように座金４の上面に乗せておき、油圧ジャッ
キ１０はジャッキ台９とジャッキ受け７の間に挿入配置
して皿バネ締付けは装置用治具を構成する。Next, at the upper end screw part of the tie rod 2,
A jack 10 can be mounted between the jack base 9 and a hollow box type jack receiver 7 with a nut function in which a plate portion on the lower side is threaded, and fixed.
At this time, the jack receiver 7 can be screwed in by hand, and it is not necessary to firmly tighten it with a tool. Further, an inverted U-shaped jack stand 9 arranged on the extension line of the central axis of the tie rod 2 is placed on the upper surface of the washer 4 so as to straddle the lower plate portion of the jack receiver 7, and the hydraulic jack 10 is jacked. The disc spring is tightened by inserting it between the base 9 and the jack receiver 7 to form a device jig.
【００１８】［実施例の作用］このように組立て構成し
た図１に示す皿バネ締付け装置用治具は、ジャッキ１０
に油圧をかけることにより油圧Ｐ1 を発生させる。この
油圧Ｐ1 は、ジャッキ１０がタイロッド２にねじ込み固
定しているジャッキ受け７に上部で拘束されているの
で、ジャッキストロークの差寸法の［Ｂ−Ａ］分をジャ
ッキ台９と座金４を介して皿バネ３を押し下げて、油圧
をかける前の皿バネの自由長Ｃから圧縮後の寸法Ｄの差
寸法に相当する反発力を発生させる。この時点でナット
５と６は同時に回してクランプ側へ降ろし、座金４に密
着するまで軽くねじ込む。その後ジャッキ１０にかけた
油圧を開放してジャッキを外し、さらにジャッキ台９と
ジャッキ受け７を順番に外して皿バネ締付け作業を完了
する。作業完了状態を図２に示す。[Operation of Embodiment] The disc spring tightening device jig shown in FIG.
A hydraulic pressure P 1 is generated by applying a hydraulic pressure to. Since this hydraulic pressure P 1 is constrained at the upper part by the jack receiver 7 which is screwed and fixed to the tie rod 2, the hydraulic pressure P 1 is passed through the jack base 9 and the washer 4 by the amount of [BA] of the differential dimension of the jack stroke. The disc spring 3 is pushed down to generate a repulsive force corresponding to the difference between the free length C of the disc spring before applying hydraulic pressure and the dimension D after compression. At this time, the nuts 5 and 6 are simultaneously rotated to lower them to the clamp side, and are lightly screwed in until they come into close contact with the washer 4. After that, the hydraulic pressure applied to the jack 10 is released to remove the jack, and then the jack base 9 and the jack receiver 7 are removed in order to complete the disc spring tightening work. The work completed state is shown in FIG.
【００１９】この作業で発生する油圧Ｐ1 で圧縮された
皿バネ３の反発力Ｐがタイロッド２に伝達され、これに
より前述の図５で示したように、上部クランプ１と下部
クランプ１３から上下のクロスバー１７を介して鉄心ギ
ャップ１５とコイル１６を所定の締付け力で締付け保持
することができる。The repulsive force P of the disc spring 3 compressed by the hydraulic pressure P 1 generated by this work is transmitted to the tie rods 2, which causes the upper clamp 1 and the lower clamp 13 to move upward and downward as shown in FIG. The iron core gap 15 and the coil 16 can be clamped and held with a predetermined clamping force via the cross bar 17.
【００２０】上述したように、本実施例によれば皿バネ
締付け装置１ケ所に対し油圧ジャッキを１個だけ使用す
ればよいので、締付け装置用治具の取付け取り外しの手
間が従来の約半分となり、またジャッキに油圧をかける
場合にも作業者がジャッキのホース部分を手で押さえて
いる手間を約半減させることができる。さらに、皿バネ
締付け装置用治具を小形化したことで治具の占めるスペ
ースが縮小され、また皿バネの緩み止め用ナットより上
方に残るタイロッド部分を、従来の構成よりも約ジャッ
キ１個分の高さだけ低くすることができるので、当然こ
の寸法分に相当するタンク高さも低減可能となる。As described above, according to the present embodiment, since only one hydraulic jack is used for one place of the disc spring tightening device, the labor for attaching and detaching the tightening device jig is about half that of the conventional one. Also, even when hydraulic pressure is applied to the jack, it is possible to reduce the labor of the operator holding the hose portion of the jack by hand by about half. In addition, the size of the jig for the disc spring tightening device has been reduced to reduce the space occupied by the jig, and the tie rod portion that remains above the loosening prevention nut of the disc spring is about one jack larger than the conventional configuration. Since it is possible to reduce the height of the tank, it is naturally possible to reduce the tank height corresponding to this dimension.
【００２１】[0021]
【発明の効果】以上説明したように、本発明によれば皿
バネ締付け作業時の繁雑な手間を削減して、作業状の安
全をも確保すると共に、変圧器の中身寸法を低くおさえ
ることにより、変圧器の製作工数及び材料費等を下げて
コスト低減可能とし、さらに組み立てやすく、より安価
なギャップ付鉄心変圧器を提供することができる。As described above, according to the present invention, it is possible to reduce the troublesome work at the time of tightening the disc spring, to ensure the safety of the work condition, and to keep the size of the transformer low. It is possible to provide a core transformer with a gap, which can reduce the manufacturing man-hours and material costs of the transformer, reduce the cost, make the assembly easier, and lower the cost.
【図１】本発明の皿バネ締付け装置用治具の一実施例の
構成図であり、同図（ａ）は同図（ｂ）のＸ方向から見
た側面図、同図（ｂ）は同図（ａ）のＹ方向から見た側
面図、同図（ｃ）は平面図。1A and 1B are configuration diagrams of an embodiment of a jig for a disc spring tightening device of the present invention, in which FIG. 1A is a side view seen from the X direction in FIG. 1B, and FIG. The side view seen from the Y direction of the same figure (a), the same figure (c) is a top view.
【図２】本発明の皿バネ締付け装置による皿バネ締付け
作業完了状態を示す図。FIG. 2 is a diagram showing a completed state of the disc spring tightening work by the disc spring tightening device of the present invention.
【図３】従来の皿バネ締付け装置用治具組立てを示す
図。FIG. 3 is a view showing a conventional jig assembly for a disc spring tightening device.
【図４】従来のの皿バネ締付け装置による皿バネ締付け
作業完了状態を示す図。FIG. 4 is a view showing a completed state of the disc spring tightening work by the conventional disc spring tightening device.
【図５】ギャップ付鉄心変圧器の中身全体の概略構成図
で、同図（ａ）は正面断面図、同図（ｂ）は側面断面
図。5A and 5B are schematic configuration diagrams of the entire contents of a core transformer with a gap, FIG. 5A is a front sectional view, and FIG. 5B is a side sectional view.
１…上部クランプ、２…タイロッド、３…皿バネ、４…
座金、５…締付けナット、６…緩み止めナット、７…ジ
ャッキ受け、８…ジャッキ受け連結用ネジ、９…ジャッ
キ台、１０…油圧ジャッキ、１１…座金兼用ジャッキ
台、１２…ジャッキ受け、１３…下部クランプ、１４…
ギャップ付鉄心、１５…鉄心キャップ、１６…コイル、
１７…クロスバー、１８…下部タンク、１９…タンクカ
バー。1 ... Upper clamp, 2 ... Tie rod, 3 ... Disc spring, 4 ...
Washer, 5 ... Tightening nut, 6 ... Loosening prevention nut, 7 ... Jack receiver, 8 ... Jack receiver connecting screw, 9 ... Jack stand, 10 ... Hydraulic jack, 11 ... Washer / jack stand, 12 ... Jack receiver, 13 ... Lower clamp, 14 ...
Iron core with gap, 15 ... Iron core cap, 16 ... Coil,
17 ... Crossbar, 18 ... Lower tank, 19 ... Tank cover.
Claims (1)
の鉄心ギャップ及びコイルを皿バネで締付けるギャップ
付鉄心変圧器の皿バネ締付け装置において、前記皿バネ
上に設けた座金と、この座金の上面にタイロッドの中心
軸の延長線上に直列に配置する逆Ｕ字型のジャッキ台
と、このジャッキ台の上方に間隔をあけて取付けた中空
箱型のナット機能付ジャッキ受けと、前記間隔部に装着
される油圧ジャッキとを備え、前記油圧ジャッキに油圧
をかけこの力によって前記皿バネを圧縮することにより
当該皿バネの反発力を前記タイロッドに伝達し、前記鉄
心ギャップ及びコイルに所定の締付け力を加えてなる構
成としたことを特徴とするギャップ付鉄心変圧器の皿バ
ネ締付け装置。1. A washer provided on the disc spring, and a tie rod on an upper surface of the washer, in a disc spring tightening device for a core transformer with a gap, in which an iron core gap with a gap or an iron core gap and a coil of a reactor are tightened with a disc spring. An inverted U-shaped jack stand arranged in series on the extension line of the central axis of the above, a hollow box-type jack receiver with a nut function mounted above the jack stand with a gap, and mounted on the gap part. A hydraulic jack is provided, and by applying hydraulic pressure to the hydraulic jack, the repulsive force of the disc spring is transmitted to the tie rod by compressing the disc spring by this force, and a predetermined tightening force is applied to the iron core gap and the coil. A disc spring tightening device for a core transformer with a gap having the above-mentioned configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33088493A JP3432876B2 (en) | 1993-12-27 | 1993-12-27 | Disc spring tightening device for core transformer with gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33088493A JP3432876B2 (en) | 1993-12-27 | 1993-12-27 | Disc spring tightening device for core transformer with gap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07192930A true JPH07192930A (en) | 1995-07-28 |
| JP3432876B2 JP3432876B2 (en) | 2003-08-04 |
Family
ID=18237590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33088493A Expired - Fee Related JP3432876B2 (en) | 1993-12-27 | 1993-12-27 | Disc spring tightening device for core transformer with gap |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3432876B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009126964A1 (en) * | 2008-04-11 | 2009-10-15 | Verigy (Singapore) Pte. Ltd. | Clamp with a non-linear biasing member |
| CN101937766A (en) * | 2010-09-13 | 2011-01-05 | 保定天威集团有限公司 | Central pressing draw bar of reactor |
| CN102832017A (en) * | 2012-09-14 | 2012-12-19 | 保定天威集团有限公司 | Spring compression device for compressing shell type transformer core and compression method |
| KR101236448B1 (en) * | 2012-06-28 | 2013-02-22 | 국제전기 주식회사 | Assembling structure of electromotion vehicle transformer |
| JP2013219244A (en) * | 2012-04-10 | 2013-10-24 | Mitsubishi Electric Corp | Fixing method of semiconductor module of semiconductor device |
| CN108597796A (en) * | 2018-04-20 | 2018-09-28 | 保定天威保变电气股份有限公司 | A kind of adjustable multiscrew press-loading apparatus and pressing method |
-
1993
- 1993-12-27 JP JP33088493A patent/JP3432876B2/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009126964A1 (en) * | 2008-04-11 | 2009-10-15 | Verigy (Singapore) Pte. Ltd. | Clamp with a non-linear biasing member |
| CN102124353A (en) * | 2008-04-11 | 2011-07-13 | 惠瑞捷（新加坡）私人有限公司 | Clamp with a non-linear biasing member |
| CN101937766A (en) * | 2010-09-13 | 2011-01-05 | 保定天威集团有限公司 | Central pressing draw bar of reactor |
| JP2013219244A (en) * | 2012-04-10 | 2013-10-24 | Mitsubishi Electric Corp | Fixing method of semiconductor module of semiconductor device |
| KR101236448B1 (en) * | 2012-06-28 | 2013-02-22 | 국제전기 주식회사 | Assembling structure of electromotion vehicle transformer |
| CN102832017A (en) * | 2012-09-14 | 2012-12-19 | 保定天威集团有限公司 | Spring compression device for compressing shell type transformer core and compression method |
| CN108597796A (en) * | 2018-04-20 | 2018-09-28 | 保定天威保变电气股份有限公司 | A kind of adjustable multiscrew press-loading apparatus and pressing method |
| CN108597796B (en) * | 2018-04-20 | 2024-07-09 | 保定天威保变电气股份有限公司 | Adjustable multi-screw press-fitting device and press-fitting method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3432876B2 (en) | 2003-08-04 |
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