CN201359923Y

CN201359923Y - Mould for producing ultra microcrystal voltage transformer iron core

Info

Publication number: CN201359923Y
Application number: CNU2009200369059U
Authority: CN
Inventors: 朱红育
Original assignee: State Power Environmental Protection Research Institute
Current assignee: Nanjing Guodian Environmental Protection Technology Co., Ltd.
Priority date: 2009-02-27
Filing date: 2009-02-27
Publication date: 2009-12-09
Anticipated expiration: 2019-02-27

Abstract

The utility model relates to a mould used for producing an ultra microcrystal voltage transformer iron core, which comprises a mould for coiling and a square-type mould; the circular mould consists of two semicircular rings and a connecting rod, wherein the two semicircular rings are arranged symmetrically on the two sides of the connecting rod, and the two ends of the connecting rod and the end parts of the two semicircular rings are connected respectively in a taper manner; the square-type mould comprises a square-type internal mould and a square-type external mould, the square-type external mould is jointed by two U-type bodies with a pair of folded ears, and the folded ears of the two U-type bodies are connected and locked with screw bolts. By adopting the mould to produce the ultra microcrystal voltage transformer iron core, the stress caused in the coiling process of the ultra microcrystal chip and strip is uniform, the rupture phenomenon on the ultra microcrystal chip and strip during both the coiling and the process of the billet changing from circular type to square type can be avoided, therefore the reliable formation can be guaranteed, and high-power ultra microcrystal voltage transformer iron core can be prepared and produced.

Description

Ultracrystallite transformer fe core mold

Technical field

The utility model relates to a kind of particular manufacturing craft that is used to make the ultracrystallite transformer core.

Technical background

Transformer core is the magnetic conductive component of power transformer inside, and silicon steel sheet and ferrite are to make the modal material of transformer core.Along with development in science and technology, many high-power electric appliances (as the flue gas electrostatic precipitator of large-sized boiler etc.) needing to use the high-power high-frequency high-voltage power supply, the intensity and the power consumption of the transformer core that matches are with it had higher requirement.The power consumption of iron core causes the transformer temperature rise, and control iron core power consumption is the power consumption of the iron core of high-power high-frequency high-voltage power transformer (work temperature rise) particularly, is the important step that reduces the transformer temperature rise, also is the transformer core important quality index.Under the prerequisite that does not influence electromagnetic property and frequency characteristic, require the power consumption of iron core low as far as possible.The ultracrystallite material is all more satisfactory because of its frequency characteristic and electromagnetic property, is comparatively desirable transformer fe core material, and the instrument transformer electromagnetic property made from it is good, and temperature rise is low, and power loss is little.The ultracrystallite material is to be base material with iron, adds rare elements such as a small amount of Ni , makes the book sheet band of thickness less than 0.2mm by emergency cooling process; By the coiling superpose-forming, make iron core with this laminar ultracrystallite band subsequently by handling procedures such as heat treatment, typings.But all adopt single square mould at present, laminar ultracrystallite band is directly turned to the square idiosome, be easy to generate unbalanced stress and the impaired rate of finished products that ruptures is low, particularly be difficult to make high-power ultracrystallite transformer core.

Summary of the invention

The purpose of this invention is to provide a kind of particular manufacturing craft of making the ultracrystallite transformer core, solve rapid wear in the ultracrystallite transformer core forming process, the problem that rate of finished products is low is to be applicable to the making of the high ultracrystallite transformer core of high-power transformer iron core.

This particular manufacturing craft comprises coiling circular die and square mould; Said round mould is formed by two semicircular ring and a connecting rod assembly, and two semicircular ring are symmetrically located at the connecting rod both sides, and the two ends of connecting rod are connected to push away to pull out respectively with the end of two semicircular ring.

Said square mould comprises square internal mold and square external mold, and the square internal mold comprises square body frame and interior support, and said square body frame is made up of two U type bodies, connects by a plurality of pillar stretchings between the outer wall of the inwall of this U type body and said interior support; Said square external mold is made up of piecing together two U type bodies that have a doubling ear, connects locking by bolt between two the corresponding folding of U type body ears.

One end of said each pillar is connected with the nut of regulating little column length respectively, by the turn nut, nut is advanced or moves back, and struts distance between scalable U type body and the interior support.

In the said square internal mold, the docking arm length sum of two U type bodies of composition internal mold body frame so that insert in the idiosome, makes round interior window become square less than the corresponding sides length of window in the iron core square, by interior support and pillar two U type bodies are strutted then, reach design size.

Earlier the laminar band of ultracrystallite is wound in the overlapping round idiosome of stratiform on round mould, uses the square mould holding then, make round idiosome be transformed into the square idiosome, and square ultracrystallite idiosome is gone into furnace treatment reason and subsequent handling together with the square mould.With round tup coiling idiosome, stressed even, avoid the ultracrystallite strip phenomenon of rupture in winding process, to occur, and be convenient in demoulding; The square mould can make the ultracrystallite idiosome from the round square that is transformed into by the mode of progressively combination, and process is reliable, can not cause the ultracrystallite idiosome to damage, and can prepare the ultracrystallite transformer core of large scale (promptly high-power).

Description of drawings

Fig. 1 represents the three-dimensional shape of ultracrystallite iron core.

Fig. 2 is the structure chart of round mould.Fig. 2 (1) is the J-J profile stretch-out view of Fig. 2.

Fig. 3 is the structure chart of square mould.

Embodiment

Make the structure of the particular manufacturing craft of ultracrystallite transformer core below in conjunction with description of drawings.

As Fig. 1, the shape of ultracrystallite transformer core 10 is identical with the conventional transformer iron core, and window 11 in the square is contained at the center, the square iron core of Figure 10 is cut along cross central line, two U sections cores.

As Fig. 2, round mould is combined by two semi-circular ring 2-1,2-2 and connecting rod 1, and two semicircular ring 2-1,2-2 are symmetrically located at the both sides of connecting rod 1.See Fig. 2 (1), the end of connecting rod 1 and between the end face of two semicircular ring 2-1, the 2-2 of its both sides, coincide and form to push away and pull out structure with the inclined-plane.Ultracrystallite book sheet band unloads lower link after coiling is finished on the round mould, promptly occur vacancy between two semicircular ring, the two can be moved to the vacancy, middle part, and the round idiosome of ultracrystallite can not damage in the safe demoulding.

Fig. 3 represents the structure of square mould, comprises square internal mold and square external mold, and the square internal mold comprises interior body frame and interior support 6 of being made up of two U type bodies 4, links to each other by pillar 5 usefulness nut 5-1 stretchings between the inwall of this U type body 4 and the outer wall of interior support 6; The square external mold is made up of a pair of U type body 3, and two arm ends of U type body 3 are provided with between 7, two U types of folding ear body, the 3 corresponding folding ears 7 and connect locking by bolt 8.The square mould makes process as follows: internal mold two U type bodies 4 are inserted in the interior oeil de boeuf mouth of round idiosome, make circular window become square, by support in the square 6 and each pillar 5, two U type bodies are strutted again, regulate nut 5-1 location, form spacing 4-1 between 4 liang of butt ends of U type body; Then with two U type bodies, 3 clamping connections of external mold in the outside of ultracrystallite idiosome, two doubling ears 7 are fixed with bolt 8 interlockings respectively, the ultracrystallite idiosome is clamped in moulding between the inside and outside mould of square mould.

Claims

1. ultracrystallite transformer fe core mold is characterized in that comprising coiling mould and square mould; Said round mould is formed by two semicircular ring and a connecting rod assembly, and two semicircular ring are symmetrically located at the connecting rod both sides, and the two ends of connecting rod are connected to push away to pull out respectively with the end of two semicircular ring; Said square mould comprises square internal mold and square external mold.

2. according to the said ultracrystallite transformer fe of claim 1 core mold, it is characterized in that said square internal mold comprises square body frame and interior support, said square internal mold comprises square body frame and interior support, said square body frame is made up of two U type bodies, connects by a plurality of pillar stretchings between the outer wall of the inwall of this U type body and said interior support; Said square external mold is made up of piecing together two U type bodies that have a doubling ear, connects locking by bolt between two the corresponding folding of U type body ears.

3. according to the said ultracrystallite transformer fe of claim 2 core mold, it is characterized in that an end of said each pillar is connected with the nut of regulating little column length respectively.

4. according to claim 1 or 2 or 3 said ultracrystallite transformer fe core mold, it is characterized in that in the said square internal mold that the docking arm length sum of two U type bodies of composition internal mold body frame is less than the corresponding sides length of window in the iron core square.