JP6985165B2 - Winding separation device and winding separation method - Google Patents

Description

The present invention relates to a winding separation device and a winding separation method for separating windings of a used motor or generator from a stator.

Conventionally, motor parts used in compressors, which are components of refrigerators and air conditioners, have been recycled. However, since the winding of the motor is tightly wound around the stator, it is extremely troublesome to separate the winding from the stator, and it is a laborious and costly work such as destroying the entire stator.

For example, in Patent Document 1, in order to improve work efficiency and reduce recovery cost in coil recovery of a motor or a generator, one end of a coil inserted with a protruding end portion is cut off and the coil is fixed. Disclosed is a method of separating the stator and the coil by extruding the stator. Further, a winding cutting device wound around a stator is disclosed in, for example, Patent Document 2.

Japanese Unexamined Patent Publication No. 3-155355 Japanese Unexamined Patent Publication No. 2011-62030

However, as described in Patent Document 1, the method of extruding and separating the coil from the stator in which one end of the coil is cut has a problem that the device configuration becomes large or complicated and the work efficiency is poor. ..

Therefore, an object of the present invention is to provide a winding separation device and a winding separation method that can easily separate the windings after cutting one of the windings wound in the stator.

In order to solve the above problem, the present invention is a winding separating device for separating the winding from a stator in which one folded portion of the winding wound in the stator is cut, in a wedge shape. It has a pair of comb-tooth structures provided with a plurality of wedge members in parallel, and a pressing means for pressing at least one of the comb-tooth structures toward the other of the comb-tooth structures, and the pair of the comb-tooth structures. The bodies are arranged so that the tips of the wedge members face each other, the wedge members each have a wedge portion at the tip and an inclined portion on the upper surface on the proximal end side, and the wedge portion is cut from the stator. Provided is a winding separation device that can be inserted into the folded portion of the non-winding portion, and the inclined portion is inclined upward from the base end of the upper surface of the wedge portion.

When the plurality of wedge members of the comb tooth structure are pressed by the pressing means, the other comb tooth structure facing each other between the adjacent wedge members of the one comb tooth structure in a plan view. It is preferable that the wedge members of the body are alternately arranged so as to be located. Further, it is preferable that the upper surface of the wedge portion is a horizontal plane and the angle of the tip is 10 ° to 45 °. Further, the distance between the wedge members adjacent to the comb tooth structure is 10 mm to 30 mm, and the width direction of the comb tooth structure orthogonal to the pressing direction by the pressing means is equal to or larger than the diameter of the stator. Is preferable.

At least a part of the wedge members of at least one of the pair of comb-tooth structures may have a length in the direction of being pressed by the pressing means different from the length of the other wedge members. At that time, one of the plurality of wedge members of the pair of the comb tooth structures has the same length in the direction of pressing by the pressing means, and the plurality of wedge members of the other comb tooth structure are one in the width direction. It may be longer in order from to the other.

Further, the present invention is a winding separation method using the winding separation device, in which a cutting step of cutting one folded portion of a winding exposed from a stator to unwind the winding. After placing the lower surface of the peripheral edge portion of the stator on the wedge member of the comb tooth structure with the winding of the stator facing down, at least one of the comb tooth structures is placed. The other winding separation step of pressing toward the comb tooth structure side is provided, and the winding separation step is the one in which the wedge portion of the wedge member of the pair of comb tooth structures is not cut by the stator. It is inserted between the windings, and as the comb tooth structure is pressed, the stator is guided upward by the inclined portion of the wedge member and pulled upward, so that the stator and the winding are separated from each other. A winding separation method is provided.

According to the present invention, only by cutting one folded portion of the winding wound in the stator and then placing the stator on the comb tooth structure, the wedge at the tip of the wedge member arranged in the shape of a comb tooth is formed. The winding is separated from the stator by inserting the portion into the winding and the inclined portion guiding the stator upward. Therefore, the winding can be easily separated and recovered.

It is a top view which shows the outline of the winding separation apparatus which concerns on embodiment of this invention. It is a side view of the winding separation apparatus of FIG. It is a side view which shows the shape of the wedge member of the winding separating apparatus of FIG. It is a figure which shows the arrangement example of the length of the wedge member of the comb tooth structure which concerns on a different embodiment of this invention. The procedure of the winding separation method using the winding separation device according to the embodiment of the present invention is shown, (a) is a state where the stator is placed, (b) is a state where the wedge portion starts to be inserted into the winding, (c). ) Is a side view showing a state in which the stator and the winding are separated.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the present specification and the drawings, the elements having substantially the same functional configuration are designated by the same reference numerals, so that duplicate description will be omitted.

FIG. 1 is a plan view showing an outline of the winding separation device 1 according to the embodiment of the present invention, and FIG. 2 is a side view of the winding separation device 1 of FIG.

The winding separator 1 has a pair of comb tooth structures 2a and 2b provided with a plurality of wedge members 11 arranged in parallel in a comb tooth shape, and one comb tooth structure 2a (on the right side in FIG. 1) on the other side (left side). It has a cylinder 3 as a pressing means for pressing the comb tooth structure 2b side of the above. As the cylinder 3, a commercially available cylinder such as a spring type or a hydraulic type can be appropriately used. It should be noted that there may be a pressing means for pressing both the left and right comb tooth structures 2a and 2b in the direction of each other.

The pair of comb tooth structures 2a and 2b are arranged so that the tips of the wedge members 11 face each other. In the present embodiment, the plurality of wedge members 11 of the left comb tooth structure 2b have the same length in the direction of pressing by the cylinder (Y direction in FIGS. 1 and 2), and the plurality of right comb tooth structures 2a are plural. The wedge member 11 is elongated in order from one side (lower side in FIG. 1) in the width direction (X direction) to the other side (upper side in FIG. 1).

The wedge members 11 of the comb tooth structures 2a and 2b are supported by the support portions 4a and 4b with bolts or the like on the proximal end side, respectively. In the present embodiment, the position of the support portion 4b on the left side is fixed, and the support portion 4a on the right side can move in the left-right direction in the figure along the rail 5. Further, as shown in FIG. 1, the wedge members 11 of the pair of comb tooth structures 2a and 2b are located between the adjacent wedge members 11 of the one comb tooth structure 2a (2b) in the X direction. , The wedge member 11 of the other facing comb tooth structure 2b (2a) is provided so as to be located. That is, when the comb tooth structure 2a is pressed by the cylinder 3, the wedge members 11 of the left and right comb tooth structures 2a and 2b are arranged so as to alternate without contacting each other. The distance between the wedge members 11 is preferably 10 mm to 30 mm, and even if it is smaller or larger than this, the insertion of the winding into the folded portion tends to be insufficient. The thickness of each wedge member 11 in the width direction (X direction) may be about 5 mm to 10 mm. Further, the width direction (X direction) of the entire comb tooth structure 2 composed of the plurality of wedge members 11 is such that the wedge member 11 can be reliably inserted into all the exposed portions of the winding 9 of the stator 8 to be handled. It is preferably at least the diameter of the stator 8.

FIG. 3 is a side view showing the shape of the wedge member 11. In FIG. 3, the right side is the base end side fixed to the support portion 4a (4b), and the left side is the wedge portion 12 inserted into the winding 9. The upper surface of the wedge portion 12 is substantially horizontal, and the peripheral edge portion of the stator 8 is placed when the stator 8 is set. The lower surface side of the wedge portion 12 is preferably inclined downward so that the angle θ when viewed from the side is 10 ° to 45 °. If the angle θ exceeds 45 °, it becomes difficult to insert the winding 9 into the winding 9, and the winding 9 cannot be smoothly separated. When the angle θ is small, it is easy to insert it into the winding 9, but when it is smaller than 10 °, the tip is too thin and the strength is insufficient, and the wedge portion 12 is easily damaged. Further, an inclined portion 13 inclined upward is provided on the base end side of the upper surface of the wedge portion 12. The inclined portion 13 guides the stator 8 placed on the upper surface of the wedge member 11 upward as the wedge members 11 approach each other, and separates the winding 9 into which the wedge member 12 is inserted and the stator 8. .. The angle θ of the wedge portion 12 may be configured to change in two or more steps. That is, for example, the shape may be 10 ° from the tip of the wedge portion 12 to 50 mm and 40 ° thereafter.

In the embodiment of FIGS. 1 and 2, the plurality of wedge members 11 of the comb tooth structure 2a on the right side are sequentially lengthened from the lower side to the upper side in the X direction, but the present invention is limited to this. There is no such thing. However, it is preferable that the length of some wedge members 11 is different from the length of the other wedge members 11, and at least one of the pair of comb tooth structures 2a and 2b has such a configuration. You just have to. As a result, the pressing force of the cylinder 3 can be concentrated and transmitted to a part, and the longest wedge member 11 is inserted into the winding 9 in order from the wedge portion 12, and is more reliably inserted into the winding 9 and wound. 9 can be pulled out. FIG. 4 shows an embodiment in which the arrangement of the wedge member 11 of the comb tooth structure 2a differs depending on the length, and as shown in FIG. 4A, the wedge member 11 becomes longer from the end in the width direction toward the center. The arrangement may be such that the wedge members 11 at two positions in the width direction become longer, as shown in FIG. 4 (b). Further, it is preferable that these wedge members 11 can be individually attached to and detached from the support portions 4a (4b) for maintenance purposes.

Next, a winding separation method for pulling out the winding 9 wound in the stator 8 will be described using the winding separation device 1 shown in FIGS. 1 and 2.

First, one folded portion of the winding 9 wound in the stator 8 is cut. In this cutting step, the winding 9 is wound by cutting the folded winding 9 on either the upper surface or the lower surface where the winding 9 wound inside the stator 8 is exposed. Release the state. For this cutting, for example, a known method such as a wire cutter, a jet cutter, or nippers can be used. In the cutting step, all of the folded windings 9 are cut so that the windings 9 can be reliably pulled out from the opposite side in the subsequent winding separation step.

Next, a winding separation step using the winding separation device 1 is performed. First, the stator 8 is placed between the pair of comb tooth structures 2a and 2b of the winding separator 1 with the folded portion of the winding 9 facing upward. At this time, as shown in FIG. 5A, the peripheral edge portion of the lower surface of the stator 8 is placed on the upper surface of the wedge members 11 on both sides. As shown in FIG. 1, when the lengths of the wedge members 11 of one of the comb tooth structures 2a are sequentially different, the stator 8 does not have to finely adjust the distance between the left and right wedge members 11 with the cylinder 3. It can be placed in a position according to the diameter of the.

After that, the cylinder 3 is operated to move one of the comb tooth structures 2a in the Y direction. By placing the peripheral edge portion of the stator 8 on the upper surface of the wedge member 11, the winding 9 exposed from the lower surface of the stator 8 is located below the tip of the wedge portion 12. Therefore, the comb tooth structure 2a moves in the Y direction due to the operation of the cylinder 3, and the upper surface of the wedge portion 12 moves along the lower surface of the stator 8, so that the wedge portion 12 is as shown in FIG. 5 (b). Is inserted into the winding 9.

Since the wedge members 11 of the pair of comb tooth structures 2a and 2b are alternately arranged in the X direction of FIG. 1, the wedge members 11 are pushed into the winding 9 without contacting each other. Due to the operation of the cylinder 3, the distance between the wedge members 11 on both the left and right sides becomes narrower, and as they overlap, the lower surface of the stator 8 is placed on the inclined portion 13 from the upper surface of the wedge portion 12 as shown in FIG. 5 (c). Will be placed. That is, the stator 8 is guided by the inclined portion 13 and pulled upward while the wedge portion 12 is inserted in the winding 9. Moreover, since the lower surface of the wedge portion 12 inserted into the winding 9 is inclined downward, the winding 9 is pulled downward. In this way, the stator 8 and the winding 9 are separated.

As described above, according to the present embodiment, the wedge member 11 of the comb-tooth structure 2 has a wedge portion 12 having an inclination to guide the winding 9 downward, and an inclined portion 13 to guide the stator 8 upward. When a pressing force is applied to the comb tooth structure 2a from the cylinder 3 due to these inclination angles, the wedge portion 12 is inserted into the winding 9 and the stator is inserted from the winding 9 to the stator. The force to pull the 8 apart is given. Therefore, the winding 9 can be easily separated from the stator 8 with a simple structure.

Although the preferred embodiment of the present invention has been described above, the present invention is not limited to such an example. It is clear that a person skilled in the art can come up with various modifications or modifications within the scope of the technical ideas described in the claims, and of course, the technical scope of the present invention also includes them. It is understood that it belongs to.

As an example of the present invention, the winding 9 was separated from the stator 8 by using the winding separating device 1 shown in FIGS. 1 and 2. The maximum length of the wedge member 11 of the comb tooth structure 2a was 250 mm, the shape of the wedge member 11 used was that shown in FIG. 3, and the angle θ was 27 °. The length of the horizontal portion of the upper surface of the wedge portion 12 was 20 mm to 90 mm, and the angle formed by the inclined portion 13 and the horizontal portion was 155 °. The distance between the adjacent wedge members 11 is 16 mm.

As a conventional example, a method is performed in which a stator is installed on a coil receiver, the opening / closing arm is moved to the stator position, and then the winding is grabbed by the coil gripping claw and pulled out by using a separation device as shown in Patent Document 1. rice field.

In the conventional drawing method, it took 40 seconds per stator, but by using the winding separation device 1 of the example of the present invention, it was possible to separate the windings in 20 seconds per stator.

The present invention can be applied when separating the windings of a motor or a generator from the stator.

1 Winding separator 2, 2a, 2b Comb tooth structure 3 Cylinder 4a, 4b Support part 5 Rail 8 Stator 9 Winding 11 Wedge member 12 Wedge part 13 Inclined part

Claims (7)

A winding separator that separates the winding from the stator in which one folded portion of the winding wound in the stator is cut.
It has a pair of comb tooth structures having a plurality of wedge members arranged side by side in a comb tooth shape, and a pressing means for pressing at least one of the comb tooth structures toward the other comb tooth structure.
The pair of comb-tooth structures are arranged so that the tips of the wedge members face each other.
Each of the wedge members has a wedge portion at the tip and an inclined portion on the upper surface on the proximal end side, and the wedge portion can be inserted into a folded portion of the winding of the uncut side of the stator, and the inclined portion can be inserted. Is a winding separator, characterized in that the wedge portion is inclined upward from the base end of the upper surface thereof. When the plurality of wedge members of the comb tooth structure are pressed by the pressing means, the other comb tooth structure facing each other between the adjacent wedge members of the one comb tooth structure in a plan view. The winding separation device according to claim 1, wherein the wedge members of the body are alternately arranged so as to be located. The winding separator according to any one of claims 1 or 2, wherein the wedge portion has a horizontal surface on the upper surface and an angle of a tip of 10 ° to 45 °. The distance between the wedge members adjacent to the comb tooth structure is 10 mm to 30 mm, and the width direction of the comb tooth structure orthogonal to the pressing direction by the pressing means is equal to or larger than the diameter of the stator. The winding separator according to any one of claims 1 to 3, wherein the winding separator is characterized by the above. A claim that at least a part of the wedge members of at least one of the pair of comb-tooth structures has a length in a direction of being pressed by the pressing means different from the length of the other wedge members. Item 2. The winding separator according to any one of Items 1 to 4. The plurality of wedge members of one of the pair of comb tooth structures have the same length in the direction of pressing by the pressing means, and the plurality of wedge members of the other comb tooth structure are from one in the width direction to the other. The winding separator according to claim 5, wherein the windings are sequentially lengthened. A winding separation method using the winding separation device according to any one of claims 1 to 6.
A cutting process in which one folded portion of the winding exposed from the stator is cut to unwind the winding.
After placing the lower surface of the peripheral edge of the stator on the wedge member of the comb-tooth structure with the winding of the stator facing down, at least one of the comb-tooth structures is placed on the other. It has a winding separation step of pressing toward the comb tooth structure side.
In the winding separation step, the wedge portion of the wedge member of the pair of comb tooth structures is inserted between the uncut windings of the stator, and the stator is pressed with the pressing of the comb tooth structure. Is guided upward by the inclined portion of the wedge member, and the stator and the winding are separated from each other.

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