JPH09115751A - Reactor and its transportation method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reactor which can be transported with its large part in the assembled state, and assembling is smoothly enabled in the field after transportation. SOLUTION: Spacers 1 and core blocks 2 are alternately laminated, bonded and combined, and an iron core P is constituted. The diameter ϕd of the core block 2 is made greater than the width W of a lower yoke 3. In the case of transportation of the iron core leg P, a suspension jig 5 is used which has a height covering the iron core leg P and is provided, in the lowest part, with a pawl 6 supporting the lowermost core block 2 from the lower side. While the lowermost core block 2 of the iron core leg P is supported from the lower side by the pawl 6 of a suspension jig 5, the iron core leg P is suspended and mounted on the lower yoke 3. The pawl 6 is formed at the position protruding from the side surface of the lower yoke 3 in the end portion of the core block 2, and does not collide against the lower yoke 2, so that the pawl 6 is not put between the core block 2 and the lower yoke 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reactor constructed by alternately stacking core blocks and spacers, and more particularly, to a reactor for facilitating transportation and facilitating on-site assembly work, and such a reactor. Regarding the transportation method.

[0002]

2. Description of the Related Art Reactors are connected to an electric circuit to make effective use of inductive reactance. When classified from the structure, they are divided into air-core type reactors and iron-core type reactors. It is often used as one that requires reactance or one that is continuously rated.

An example of a conventionally proposed such core reactor with a gap will be described below with reference to FIG. That is, a spacer 1 that forms a gap with a circular plate-shaped core block 2 in which silicon steel plates are laminated
The iron core leg P is configured by alternately stacking and. A winding (not shown) is fitted around the outer periphery of the iron core leg P. Then, the iron core leg P and the winding are sandwiched from above and below by an upper yoke (not shown) which is a yoke portion and a lower yoke 3, and a tightening bolt (not shown) penetrated through the center of the core block 2. It is fixed by tightening.

The spacer 1 and the core block 2, and the core block 2 and the lower yoke 3 are bonded to each other by adhesion. In general, the diameter φd of the core block 2 is shorter than the width W of the lower yoke 3, and the diameter φd ′ of the spacer 1 is shorter than the diameter φd of the core block 2.

In many cases, the reactor having the above-described structure is transported in a divided state and, after arriving at the site, an assembly work is performed. However, even in the case of split transportation in this way, various verification tests at the manufacturing factory must be performed in the state of finished products, so they are assembled once at the factory in advance and disassembled after the test is completed. Will be transported. Therefore, in the assembly at the factory, in consideration of the convenience of dividing during transportation, the assembly is performed without adhering the divided parts such as finished products.

However, if there are many such non-bonded portions, the strength of the divided portions becomes low, so there is a problem in terms of accuracy and safety during the test. Therefore, in conducting the test, it is desirable that the number of unbonded portions is as small as possible.

In order to cope with this, the core block 2 and the spacer 1 are adhesively joined to complete only the iron core leg P portion, and the iron core leg P and the lower yoke 3 are assembled without being adhered. It is conceivable to carry out a test in.
After performing the test, only the core leg P and the lower yoke 3 are divided, and the core block 2 of the core leg P and the spacer 1 are transported in an integrated state. After being transported to the site in this way, the lower yoke 3 is first installed at the installation location. Then, the iron core leg P is hoisted by the hoisting jig, and the lower yoke 3
The reactor is completed by placing it on top and fixing it by adhesion.

As such a hoisting jig, one that can hoist and move the long iron core leg P safely is desirable. For this reason, conventionally, as shown in FIG. 7, a lifting jig 5 having a height that covers the iron core leg P and including a claw 6 that supports the lowermost core block 2 from below is used.

[0009]

However, the above-mentioned prior art has the following problems. That is, since the diameter φd of the core block 2 is equal to or less than the width W of the lower yoke 3 as described above, when the iron core leg P lifted by the lifting jig 5 is placed on the lower yoke 3, the claws 6 of the lifting jig 5 are placed. Are sandwiched between the lowermost core block 2 and the lower yoke 3. Therefore, the work of removing the claw 6 is troublesome, and the assembly becomes difficult, and the safety of the work becomes a problem.

The present invention has been proposed in order to solve the problems of the prior art as described above, and an object thereof is to be able to transport a large part in an assembled state and to smoothly assemble it on-site after transportation. Is to provide a reactor that can be done.

Another object of the present invention is to provide a method of transporting a reactor, which can be transported in a state in which most of it is assembled and which can be smoothly assembled on-site after transportation.

[0012]

In order to achieve the above-mentioned object, the invention according to claim 1 is provided with an iron core leg in which core blocks and spacers are alternately stacked, and an outer periphery of the iron core leg. In a reactor that is composed of a winding wire and an upper yoke and a lower yoke that fix the iron core leg from above and below, and is separable during transportation, the diameter of the core block is formed to be larger than the width of the lower yoke. Characterize.

In the invention according to claim 1 as described above, since the diameter of the core block is larger than the width of the lower yoke, the end portion of the core block projects beyond the side surface of the lower yoke. Therefore, even if the hook of the lifting jig is hooked on the lower end of the core block and the iron core leg is set on the lower yoke, the hook is located on the lower yoke because the core block protrudes from the lower yoke. Not hit Therefore, the lifting jig can be easily removed.

According to a second aspect of the present invention, an iron core leg in which core blocks and spacers are alternately stacked, a winding wire arranged on the outer periphery of the iron core leg, an upper yoke for fixing the iron core leg from above and below, and In a reactor configured by a lower yoke and separable at the time of transportation, a cutout portion is provided in a part of the lower yoke so as to correspond to a claw provided on a transportation jig of the core block. To do.

In the above-described invention according to claim 2, since the notch is formed in a part of the lower yoke, when the iron core leg is hoisted by the hoisting jig and placed on the lower yoke, the claw of the hoisting device is formed. Since it enters the notch, it is prevented from being directly sandwiched by the iron core leg and the lower yoke. Therefore, the lifting jig can be easily removed.

According to a third aspect of the present invention, an iron core leg in which core blocks and spacers are alternately stacked, a winding wire arranged on the outer periphery of the iron core leg, an upper yoke for fixing the iron core leg from above and below, and In a reactor configured with a lower yoke, the lower yoke is provided with a fastening portion for fastening a wire capable of hoisting the iron core leg. The invention according to claim 3 as described above, Since the lower yoke on which the iron core leg is mounted has the fastening portion for fastening the wire, the iron core leg can be hoisted by fastening the wire to the fastening portion, so a hoisting jig is not required and the hoisting jig is not required. The problem of removing the equipment is eliminated.

According to a fourth aspect of the present invention, an iron core leg in which core blocks and spacers are alternately stacked, a winding wire arranged on the outer periphery of the iron core leg, an upper yoke for fixing the iron core leg from above and below, and In a reactor transportation method of transporting a reactor configured by a lower yoke in a divided manner, a core block and a spacer are fixed one by one on the lower yoke, and one core block fixed on the lower yoke and A laminated body is formed by stacking core blocks and spacers other than one spacer, and the laminated body,
It is characterized in that it is transported separately from the lower yoke.

In the invention according to claim 4 as described above,
The diameter of the lowermost spacer fixed to the lower yoke side is smaller than that of the core block.Therefore, if you place a stack of core blocks suspended by a suspension jig on it, the outer circumference of the core block will be more than the side face of the spacer. Also protrudes. Since the claws of the lifting jig are hooked on the protruding outer peripheral part of the core block, the claws are not sandwiched between the core block and the spacers even when the laminated body is placed on the spacer on the lower yoke side. It will be in a state of being inserted between the protruding outer peripheral portions of. Therefore, the lifting jig can be easily removed.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. It should be noted that members corresponding to the members in the related art shown in FIGS. 6 and 7 are denoted by the same reference numerals for description.

(1) First Embodiment One embodiment corresponding to the reactor of the invention described in claim 1 will be described below as a first embodiment with reference to FIG.

(Structure) First, the structure of the present embodiment will be described. That is, the iron core leg P is configured by alternately stacking the spacers 1 and the core blocks 2 and bonding them together, but the diameter φd of the core blocks 2 is equal to the lower yoke 3.
Is formed larger than the width W of the. It should be noted that the iron core legs P are transported at a height that covers the iron core legs P as in the conventional example.
A hoisting jig 5 having a claw 6 for supporting the lowermost core block 2 from the lower side is used at the lowermost portion.

(Operation) The operation of the present embodiment having the above-mentioned structure will be described. That is, the core leg 2 of the lowermost layer of the iron core leg P is supported from below by the claws 6 of the lifting jig 5, and the iron core leg P is lifted and placed on the lower yoke 3. At this time, the diameter φd of the core block 2 is formed to be larger than the width W of the lower yoke 3, so that the outer periphery of the core block 2 in the lowermost layer projects beyond the side surface of the lower yoke 3. Therefore, the claw 6 is located at a position projecting from the side surface of the lower yoke 3 at the end of the core block 2,
Since it does not hit, the claw 6 is not sandwiched between the core block 2 and the lower yoke 3. Therefore, the lifting jig 5 can be easily removed.

(Effect) The effects of the present embodiment as described above are as follows. That is, as described above, the iron core P
Since the lifting jig 5 can be easily removed when attaching the lower yoke 3 to the lower yoke 3, the work of transporting the iron core leg P integrally and assembling it with the lower yoke 3 as a reactor on site is completed. It can be done safely and easily.

(2) Second Embodiment One embodiment corresponding to the reactor of the invention described in claim 2 will be described below as a second embodiment with reference to FIGS. 2 and 3.

(Structure) First, the structure of the present embodiment will be described. That is, the notches 10 are provided at both shoulder ends on the side surface in the longitudinal direction of the lower yoke 3. The size of the notch 10 is such that the claw 6 of the lifting jig 5 is inserted into the space formed between the notch 10 and the core block 2, and the lower side of the claw 6 does not touch the lower yoke 3.

(Operation) The operation of the present embodiment having the above-mentioned structure will be described. That is, since the notch 10 is formed in a part of the lower yoke 3, the hanging jig 5
Even if the iron core leg P is lifted up and placed on the lower yoke 3, the claws 6 do not come into contact with the lower yoke 3 because they enter the space inside the notch 10. Therefore, the lifting jig 5 can be easily removed.

(Effects) The effects of the present embodiment as described above are as follows. That is, when the iron core leg P is attached to the lower yoke 3, the hanging jig 5 can be easily removed, so that the on-site assembly work can be performed safely and easily. Further, since it is not necessary to reduce the width of the lower yoke 3, compared with the first embodiment,
The stability of the assembled reactor is high.

(3) Third Embodiment One embodiment corresponding to the reactor of the invention described in claim 3 will be described below as a third embodiment with reference to FIG. The fastening portion according to claim 3 is a hanging ear.

(Configuration) First, the configuration of the present embodiment will be described. That is, the clamp 7 is provided integrally with the lower yoke 3, and a plurality of hanging ears 8 are provided on the upper portion of the clamp 7.
The hanging ear 8 is formed with a hole into which the wire 9 for hoisting the iron core leg P and the clamp 7 can be fastened. Further, the iron core leg P is adhesively bonded onto the lower yoke 3 even during transportation.

(Operation) The operation of the present embodiment having the above configuration is as follows. That is, the iron core P
By adhesively bonding the lower yoke 3 and the lower yoke 3, the reactor is transported in a completed state. Then, at the site, the wire 9 is fastened to the hole of the hanging ear 8, the whole is lifted by a lifting machine such as a winch, and is installed at the installation place. No lifting jig is used for this transfer.

(Effects) The effects of the present embodiment as described above are as follows. That is, the iron core leg P and the lower yoke 3 can be transported without using a hoisting jig, and the work itself of setting the iron core leg P on the lower yoke 3 is not necessary at the site, so the installation time is shortened. , Workability is improved.

Further, in the factory, the test can be performed in a state where the core leg P and the lower yoke 3 are adhesively bonded and the reactor is assembled, so that the test is performed in the state where there is an unbonded part in a part. The accuracy and safety of the test will be improved as compared to the case of performing it.

(4) Fourth Embodiment An embodiment corresponding to the reactor transportation method according to the invention of claim 4 is referred to as a fourth embodiment, and FIG.
Will be described below.

(Procedure) First, the procedure of the present embodiment will be described. In this embodiment, as in the case of a normal reactor, the spacer 1 has an outermost circumference diameter φd ′ smaller than the diameter φd of the core block 2. That is, the lowermost core block 2 and the spacer 1 above the core block 2 are adhesively bonded onto the lower yoke 3. Then, the other core blocks 2 and the spacers 1 are adhesively bonded to each other to form the laminated body Q. In this way, the lower yoke 3 in which the core blocks 2 and the spacers 1 are bonded one by one, and the stacked body Q in which the other core blocks 2 and the spacers 1 are stacked are separately transported. Then, after the lower yoke 3 side is installed at the site, the stacked body Q is lifted using the hanging jig 5 and placed on the lower yoke 3.

At this time, since the outermost peripheral diameter φd ′ of the spacer 1 is smaller than the diameter φd of the core block 2, the spacer 1
When the core block 2 and the core block 2 are stacked, a dent due to a diameter difference from the core block 2 is formed at both ends of the spacer 1. This depression is formed even when the stacked body Q is transported by the hanging jig 5 and placed on the spacer 1 bonded to the lower yoke 3 side. Therefore, the claw 6 of the lifting jig 5
The lifting jig 5 after entering the hollow and placing the laminate Q
Can be easily removed.

(Effects) The effects of this embodiment as described above are as follows. That is, by utilizing the recess formed between the spacer 1 and the core block 2,
Since the hanging jig 5 can be easily removed, the laminated body Q
It is possible to safely and easily carry out the work of transporting the lower yoke 3 and the lower yoke 3 separately, and assembling and completing them as a reactor on site.

(5) Other Embodiments The present invention is not limited to the embodiments described above, and the materials, quantities, sizes, etc. of the respective members can be changed as appropriate.

For example, the core block 2 may be a laminated core block or a radial core block.
Further, the numbers of the spacers 1 and the core blocks 2 can be freely increased or decreased according to the capacity required for the reactor.

[0039]

As described above, according to the present invention, since the diameter of the core block is formed to be larger than the width of the lower yoke, the core block can be transported in an assembled state and can be transported locally. It is possible to provide a reactor that can be smoothly assembled.

Further, according to the present invention, the lower yoke having one core block and the spacer fixed on the lower yoke and the laminated body having the other core blocks and the spacers stacked are transported as separate bodies. As a result, it is possible to provide a reactor transportation method capable of transporting a large portion in an assembled state and smoothly performing on-site assembly after transportation.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view showing a first embodiment of a reactor of the present invention.

FIG. 2 is a vertical cross-sectional view showing a second embodiment of the reactor of the present invention.

3 is a cross-sectional view taken along the line BB in the embodiment of FIG.

FIG. 4 is a front view showing a third embodiment of the reactor of the present invention.

FIG. 5 is a vertical cross-sectional view showing a fourth embodiment of the reactor of the present invention.

FIG. 6 is a front view showing an example of a conventional reactor.

FIG. 7 is a vertical cross-sectional view of the reactor of FIG. 7 viewed from the direction A.

[Explanation of symbols]

 P ... Iron core leg Q ... Laminated body 1 ... Spacer 2 ... Core block 3 ... Lower yoke 5 ... Lifting jig 6 ... Claw 7 ... Clamp 8 ... Hanging ear 9 ... Wire 10 ... Notch

Claims (4)

[Claims] 1. An iron core leg in which core blocks and spacers are alternately stacked, a winding wire arranged on the outer periphery of the iron core leg, and an upper yoke and a lower yoke for fixing the iron core leg from above and below. In a reactor that can be divided during transportation, a diameter of the core block is formed to be larger than a width of the lower yoke. 2. An iron core leg in which core blocks and spacers are alternately stacked, a winding wire arranged on the outer periphery of the iron core leg, and an upper yoke and a lower yoke for fixing the iron core leg from above and below. In a reactor that can be divided during transportation, a notch is provided in a part of the lower yoke so as to correspond to a claw provided on a transportation jig of the core block. 3. An iron core leg in which core blocks and spacers are alternately stacked, windings arranged on the outer periphery of the iron core leg, and an upper yoke and a lower yoke for fixing the iron core leg from above and below. A reactor, wherein the lower yoke is provided with a fastening portion for fastening a wire capable of hoisting the iron core leg. 4. An iron core leg in which core blocks and spacers having a diameter smaller than this are alternately stacked, windings arranged on the outer periphery of the iron core leg, and an upper yoke and a lower portion for fixing the iron core leg from above and below. In a reactor transportation method for transporting a reactor configured by a yoke in a divided manner, a core block and a spacer are fixed one by one on the lower yoke, and one core block and one spacer fixed on the lower yoke are provided. A method of transporting a reactor, characterized in that a core block other than the one spacer and a spacer are stacked to form a stacked body, and the stacked body and the lower yoke are transported as separate bodies.