JP5110181B2 - Rare earth magnet material recovery system - Google Patents

Description

  The present invention relates to a rare earth magnet material recovery system for recovering a rare earth magnet material from a motor member used in a compressor or the like.

  In recent years, from the viewpoints of energy saving and ecology, next-generation eco-friendly vehicles such as hybrid cars and electric cars have been held, and the automobile industry has been developing and selling next-generation eco-friendly cars one after another. The progress has been remarkable, and in particular, motors and batteries, which can be said to be the heart of hybrid cars and electric cars, have been reduced in size and performance, and further evolution is required in the future. Along with this, raw materials such as rare metals and rare earths are used in rare earth magnets used in motors, and there are voices of concern about their procurement.

  By the way, the rare earth magnet containing the rare earth (rare earth element) is used not only for motors of next-generation environment-friendly vehicles such as hybrid vehicles, but also for OA equipment and home appliances using advanced technology. Particularly in home appliances, rare earth magnets are used in relatively new types of air conditioners, refrigerator compressors, and washing machine motors manufactured after 2000.

  In addition, considering that the usage period of home appliances is approximately 10 years, it is speculated that home appliances using rare earth magnets, especially air conditioners and washing machines, have already been recovered in existing home appliance recycling routes. . Therefore, it is considered possible to recover recycled resources such as rare metals and rare earths by collecting home appliances such as air conditioners and washing machines using rare earth magnets from this home appliance recycling route.

  However, in the process of collecting and recycling currently used home appliances, it is almost never practiced to extract and collect rare earth magnets from compressors of air conditioners, refrigerators, or motors of washing machines.

  Recycling of compressors used in air conditioners and the like has been commercialized by multiple suppliers and separated into materials such as iron, copper, and silicon steel, but is being recycled, but rare earth magnets such as neodymium magnets have been recycled. It has not been recovered.

  In addition, when separating the motor member used for the compressor for each material, the rotor is fixed to the shaft integrally provided with the shell containing the rotating body by shrink fitting, so that the shaft is cut and separated. Or a method in which the rotor is fixed and the shaft is pushed in, a method in which the shell is fixed, and a pressure is applied in the separating direction of the shell to push up the rotor.

  However, in the method of cutting the shaft, problems such as safety and wear of the cutting blade occur. Further, in the method of fixing the rotor and pushing in the shaft, there is something that the shaft does not come out of the rotor, or a jig (push pin) for pushing into the position of the shaft is aligned. Are difficult, and problems such as insufficient strength of the push pin occur. Further, in the method in which the shell is fixed and pressure is applied to the rotor, the rotor is deformed, and there is a problem that the magnet included in the rotor cannot be taken out.

  Therefore, in Patent Document 1 below, a method is proposed in which the material content is selected by crushing after setting the nitrogen content of a rotor core of a motor made of a permanent magnet using an iron core, copper wire, and rare earth to 500 ppm or more.

  In the conventional method, by annealing the motor core in a gas soft nitriding atmosphere, the iron core portion becomes brittle and can be easily crushed, and the ratio of a plurality of components mixed in each crushed piece is suppressed. It can be separated into magnet materials using iron, copper and rare earth. Moreover, even when the rotor is shrink-fitted on the shaft, it can be easily broken.

  However, in this conventional method, after annealing in a gas soft nitriding atmosphere, the rotor core is crushed and the magnet material using iron, copper, and rare earth is separated. For example, when copper is mixed into iron or magnet material is mixed into iron, especially rotor cores containing rare earth magnets recycle rare earth magnet materials when other materials are mixed. There is a problem that it is difficult.

JP 2007-124841 A

  The present invention has been made in view of such circumstances, and by separating or disassembling a motor member used in a compressor or the like for each part, it is possible to easily collect a rare earth magnet material that is not mixed with other materials. It is an object to propose a possible rare earth magnet material recovery system.

In order to solve the above-mentioned problem, the invention according to claim 1 is a rare earth magnet material recovery system for recovering a rare earth magnet material from a motor member having a rotor equipped with a rare earth magnet, wherein the rotor is removed from the motor member. Rotor separating means for separating the rotor, demagnetizing means for demagnetizing the rare earth magnet by heating the separated rotor, disassembling means for disassembling the rotor including the demagnetized rare earth magnet material, and a magnetic material separation and recovery means for recovering by separation of the rare earth magnet material from the rotor, the rotor, together with being fixed by the pressing plate encapsulated the above rare earth magnets, the pressing plate of the rotor axial The disassembling means specifies the position of the pin fixing the pressing plate. A position specifying means, and characterized in that it comprises a cutting and removing means for cutting and removing the pins on the basis of the position information specified, and removal means for removing the pressing plate in which the pin is cut removed by the position specifying means To do.

  According to a second aspect of the present invention, in the first aspect of the present invention, the motor member has a shaft fitted into the center of the rotor and includes a rotating body at one end of the shaft. A shell is provided integrally, and the rare earth magnet that can be inserted in the axial direction from the end of the rotor is included. The rotor separating means includes a fixing means for fixing the rotor, and a shell for fixing the rotor to the shell. And a pressure load means for separating the rotor from the shaft integrally provided with the shell enclosing the rotating body.

Further, the invention according to claim 3 is the invention according to claim 1 or 2 , wherein the magnet material separation and recovery means includes a vibration load means for applying vibration to the disassembled rotor, and a rotor for applying vibration to the rotor. And an impact load means for applying an impact.

According to this invention of Claims 1-3 , the rotor separation means which isolate | separates a rotor from a motor member, the demagnetization means which demagnetizes the rare earth magnet with which the said rotor was equipped, and the demagnetized rare earth magnet raw material A rotor for disassembling the rotor, and a magnet material separating / recovering means for separating and recovering the rare earth magnet material from the disassembled rotor. The motor member can be separated or disassembled for each component, and the rare earth magnet provided in the rotor can be demagnetized to easily separate the demagnetized rare earth magnet material from the rotor. As a result, the rare earth magnet material can be collected without mixing different materials, and other components can be individually collected for the same material, and can be recycled and utilized for each material.

  According to a second aspect of the present invention, the rotor separating means includes a fixing means for fixing the rotor, and a pressure load means for applying pressure in a direction away from the rotor to a shell containing the rotating body. Therefore, the rotor can be easily separated from the shaft provided integrally with the shell containing the rotating body. As a result, the rotor can be separated without being deformed, and the rare earth magnet material can be easily separated from the rotor.

According to the first aspect of the present invention, the disassembling means includes a position specifying means for specifying the position of the pin , a cutting and removing means for cutting and removing the pin based on the specified position information, and the pin is cut and removed. And a removing means for removing the holding plate, so that when the rotor is installed on a fixing jig or the like, it can be installed without worrying about the position of the pin, and the holding plate is installed on the rotor. Even if it is fixed by at least three of the pins, it is possible to efficiently remove the pins and remove the pressing plate.

According to the third aspect of the present invention, when the rare earth magnet material is separated from the rotor, the vibration load means and the impact load means are used, so that the rare earth magnet material contained in the rotor is reliably secured. Can be separated and taken out. As a result, the rare earth magnet material and other materials (iron, copper, aluminum, etc.) can be individually collected, and each can be recycled and used.

The process figure which simulated the pre-process of the rare earth magnet raw material collection system of the present invention is shown, (a) is a shell cutting process, and (b) is a stator separation process. The process figure which simulated the process of the rare earth magnet raw material collection system of this invention is shown, (a) is a rotor separation process, (b) is a demagnetization process, (c) is a decomposition process, (d) is a magnet raw material separation and recovery process. It is. BRIEF DESCRIPTION OF THE DRAWINGS The outline of the motor member used for the rare earth magnet raw material collection | recovery system of this invention is shown, (a) is a perspective view, (b) is an exploded view of a rotor. It is a rotor separation process of Drawing 2 (a), and (a)-(c) is a process figure which imitated a series of flows by a rotor separation means. It is a demagnetizing process of FIG.2 (b), and is process drawing which simulated a series of flows by a demagnetizing means. FIG. 2C is a decomposition process, and FIGS. 2A to 2F are process diagrams simulating a series of flows by the decomposition means. 2 (d) is a magnet material separation and recovery step, (a) to (b) are process diagrams simulating a series of flows by the magnet material separation and recovery means, and (c) is a diagram in which a pole is inserted into the hole of the rotor. It is a perspective view which shows the process.

  As shown in FIG. 2, one embodiment of the rare earth magnet material recovery system of the present invention includes a rotor separation step of separating the rotor 1 from the motor member 2 by the rotor separation means 4 and a rotor 1 included in the rotor 1 by the demagnetization means 5. The demagnetizing step for demagnetizing the rare earth magnet 3, the decomposing step for decomposing the rotor 1 by the decomposing means 6, and the magnet material for separating and recovering the rare earth magnet material 3a from the rotor 1 decomposed by the magnet material separating and collecting means 7 It is roughly constituted by a separation and recovery process.

  Here, as shown in FIG. 3, the motor member 2 includes a shell 10 that encloses the rotating body 9, a shaft 8 that is integrally provided at the center in the axial direction of the rotating body 9, and the shaft 8. It is comprised by the cylindrical rotor 1 fitted by. The rotor 1 is formed with a hole 1d into which the shaft 8 is inserted and fitted at the center in the axial direction. Moreover, the presser plate 1b is provided in the both ends 1a. The pressing plate 1b is formed with the same diameter as the cylindrical rotor 1, and has four holes 1e formed at equal intervals on the same circumference, and the shaft 8 is inserted in the center. A hole 1h is formed.

  Further, as shown in FIG. 3B, the rotor 1 has four through holes 1f formed at the same position as the hole 1e formed in the pressing plate 1b. The through hole 1f and the hole 1e of the pressing plate 1b are inserted, and the pin 1c is inserted. After inserting the pin 1c, the pressing plate 1b is fixed by caulking both ends thereof.

  Further, between the through holes 1 f adjacent to each other in the circumferential direction of the rotor 1, a magnet through hole 1 g for inserting the rare earth magnet 3 is formed. The magnet through hole 1g is formed in the axial direction of the rotor 1 and can be inserted from either end 1a of the rotor 1. Further, the inserted rare earth magnet 3 is configured not to protrude outward from the end 1a of the rotor 1 by the pressing plate 1b. The inserted rare earth magnet 3 is a neodymium magnet, a samarium cobalt magnet, or the like.

  Further, as shown in FIG. 4, the rotor separating means 4 includes a fixing means 11 for fixing the rotor 1 of the motor member 2 at the center of the upper part of the gate-shaped casing, and a fixing means 11 between the upper part of the casing. A pressure load means 12 is provided to apply a pressure in the separating direction of the rotor 1 to a shell 10 that is disposed opposite to each other and encloses the rotating body 9 to separate the rotor 1. The fixing means 11 has a structure for fixing the side surface of the rotor 1 and the pressing plate 1b on the shell 10 side of the rotor 1. The load means 12 is constituted by a hydraulic cylinder 12 disposed opposite to the fixing means 11 with the fixing means 11 interposed therebetween. The hydraulic cylinder 12 is provided with a pull-out plate 12a that abuts against the upper surface of the shell 10 at the front end in the operation direction of each cylinder.

  Further, the rotor separating means 4 includes a collection conveyor 22 and a shell lower collection box 38 for collecting the shell 10 containing the rotor 9 after the rotor 1 is removed and the shaft 8 provided integrally with the shell. And a rotor recovery box 23 for recovering the separated rotor 1.

  Further, the demagnetizing means 5 includes a heating furnace 24 and a cooling chamber 25. As the heating furnace 24, an electric furnace capable of maintaining a set temperature for a certain time is used. The cooling chamber 25 is configured to cool the heated rotor 1 by, for example, jetting air. Further, the heating furnace 24 is provided with a suction device 26 that sucks the exhaust gas generated when heated, and an exhaust pipe 24 a having one side connected to the suction device 26 and the other side connected to the heating furnace 24. .

  Further, the demagnetizing means 5 is provided with a bag filter 27 for removing harmful substances and impurities from the sucked exhaust gas, and a discharge pipe 28 for discharging the exhaust gas to the atmosphere through the bag filter 27. . The cooling chamber 25 is provided with a suction pipe 25 a for sucking the air in the cooling chamber 25 by the suction device 26.

  Further, as shown in FIG. 6, the disassembling means 6 specifies the position of the fixing jig 29 for fixing the side surface of the rotor 1 by sandwiching it with the V block and the position of the pin 1c for fixing the pressing plate 1b. Means 13, cutting removal means 14 for cutting and removing the pin 1 c whose position has been specified, and removal means 15 for removing the pressing plate 1 b from which the pin 1 c has been removed from the rotor 1 are provided.

  The position specifying means 13 uses the laser pointer 13, and the cutting removal means 14 uses the cutting drill 14. Further, the detaching means 15 is a brush member 15 that is movable on the end 1a side of the rotor 1. The detaching means 15 is provided with a holding plate collection box 34 for collecting the removed holding plate 1b.

  Further, as shown in FIG. 7, the magnet material separation / recovery means 7 includes vibration load means 16 and impact load means 17 for separating the rare earth magnet material 3 a from the rotor 1. The vibration load means 16 has a structure that applies vibration to the vibration conveyor 30. On the vibration conveyor, poles 30a inserted into the through holes 1f of the rotor 1 are provided at equal intervals. As shown in FIG. 7C, the pole 30 a has a tip formed at an acute angle so that it can be easily inserted into the through hole 1 f of the rotor 1.

  The impact load means 17 is disposed above the vibration conveyor 30 and an impact member that drops the rotor 1 is used. A magnet material collection conveyor 31 that collects the rare earth magnet material 3 a separated from the rotor 1 is provided below the vibration conveyor 30. Further, a rotor collection box 33 is provided on the downstream side of the vibration conveyor 30. A magnet material collection box 32 is provided downstream of the magnet material collection conveyor 31.

  In order to recover the rare earth magnet material 3a using the rare earth magnet material recovery system having the above configuration, first, as shown in the shell cutting step of FIG. An operator sets the motor member 2 for the compressor. Since the motor member 2 is entirely covered with the shell 10, the motor member 2 is cut into, for example, an upper part, a central part, and a lower part by a plasma torch 21.

  Next, the upper portion and the central portion of the cut shell 10 are collected by the shell collection box 35. And after collection, it is recycled as an iron-based material. Further, the lower part of the remaining shell 10 is sent to the stator separation step of FIG. 1B while the stator 20 is fixed to the motor member 2 and the rotor 1 of the motor member 2 shown in FIG. .

  In the stator separation step, the operator drops the motor member 2 on the stator separation means 19 with the rotor 1 side of the motor member 2 facing downward. Thereby, only the stator 20 is separated from the motor member 2. The separated stator 20 is further separated into an iron-based material and copper, the iron-based material is recovered by an iron recovery box 36, and the copper is recovered by a copper recovery box 37, which is re-used as an iron-based material and copper. Recyclable.

  The motor member 2 separated from the stator 20 is sent to the rotor separation step shown in FIG. In the rotor separating step, the operator sets the motor member 2 on the rotor separating means 4 as shown in FIG. At this time, with the rotor 1 of the motor member 2 facing upward, the pressing plate 1b on the side surface of the rotor 1 and the shell 10 side of the rotor 1 is fixed by the fixing means 11, and between the rotor 1 and the shell 10, the hydraulic pressure is increased. The drawing plate 12a of the cylinder 12 is disposed.

Then, as shown in FIG. 4B, when the two hydraulic cylinders 12 are operated, the extraction plate 12a provided at the tip of each cylinder pushes down the shell 10. Thereby, the rotor 1 is pulled out from the shaft 8 provided integrally with the shell containing the rotating body 9. At this time, the pressure with which the hydraulic cylinder 12 pushes down the shell 10 is about 25 to 150 kgf / cm ² . Then, the shell 10 containing the rotating body 9 separated from the rotor 1 falls on the collection conveyor 22 together with the shaft 8 provided integrally with the shell 10, and is provided downstream of the collection conveyor 22. It is conveyed to the shell lower collection box 38 and collected. The recovered shell 10 is recycled as an iron-based material.

  Further, the separated rotor 1 is removed from the fixing means 11 and recovered by the rotor recovery box 23. The recovered rotor 1 is sent to the demagnetizing step in FIG. In the demagnetization step, as shown in FIG. 5, the rotor 1 is put into the heating furnace 24, the temperature is raised above the Curie temperature of the rare earth magnet 3 included in the rotor 1, and is held for a certain time. At this time, when the rare earth magnet 3 is a neodymium magnet, the Curie temperature of the neodymium magnet is 330 to 380 ° C., and thus the rotor 1 is heated by the heating furnace 24 at a temperature of 380 ° C. or more for 15 minutes. Hold the degree. Thereby, the rare earth magnet 3 contained in the rotor 1 is completely demagnetized.

  After 15 minutes, the rotor 1 is taken out of the heating furnace 24 and transferred to the cooling chamber 25. In the cooling chamber 25, for example, air is injected into the rotor 1 to cool the rotor 1 to a temperature that does not hinder the next process. At this time, taking into account that the incineration residue remains, the air in the cooling chamber 25 is sucked by the suction device 26 through the suction pipe 25a connected to the cooling chamber 25, and the bag filter 27 is harmful. And after removing the impure part, it is discharged to the atmosphere via the discharge pipe 28.

  Further, when the rotor 1 is heated by the heating furnace 24, the oil and resin adhering to the rotor 1 are vaporized or carbonized, so that the exhaust gas is discharged from the exhaust pipe 24a connected to the heating furnace 24 by the suction device 26. After removing harmful substances and impurities by the bag filter 27, the air is discharged to the atmosphere through the discharge pipe 28. At that time, the high-temperature exhaust gas sucked from the heating furnace 24 is cooled by the air sucked from the cooling chamber 25 and sent to the bag filter 27.

  And the rotor 1 cooled by the cooling chamber 25 is sent to the decomposition | disassembly process of FIG.2 (c). In this disassembling step, the operator sets the rotor 1 on the fixing jig 29 of the disassembling means 6 as shown in FIG. At this time, by setting the rotor 1 between the V blocks arranged opposite to the fixing jig 29, the V block sandwiches the rotor 1, and the rotor 1 is fixed toward the center of the fixing jig 29. .

  Next, as shown in FIG. 6B, the operator specifies the position of the pin 1c fixing the rotor 1 and the pressing plate 1b with the laser pointer 13, and the quantity and cutting depth of the pin 1c are determined. Identify and set the information in the control device. This cutting depth is set to a depth obtained by adding 1 to 3 mm to the thickness of the pressing plate 1b.

  And as shown in FIG.6 (c), when the operator operates the said control apparatus, based on the information set to this control apparatus, the cutting drill 14 has pin which has fixed the pressing board 1b. Move to 1c and cut to the set depth to remove the top of the pin 1c. Then, after all the pins 1c are cut and removed, as shown in FIG. 6 (d), the fixing jig 29 fixing the rotor 1 is rotated 90 ° and suddenly stopped. When the presser plate 1 b is detached from the rotor 1 due to the impact at this time, the presser plate 1 b is recovered by the presser plate recovery box 34.

  Further, when the holding plate 1b is not removed when the fixing jig 29 is rotated by 90 °, the brush member 15 is moved along the end 1a side of the rotor 1 as shown in FIG. Move and remove the holding plate 1b. Then, the holding plate 1 b detached from the rotor 1 is collected by the holding plate collecting box 34. And the collect | recovering pressing board 1b is recycled after isolate | separating into a brass, aluminum, and an iron-type raw material.

  Then, as shown in FIG. 6 (f), the rotor 1 from which the pressing plate 1b has been removed is rotated by 90 ° while being fixed to the fixing jig 29, and returned to the original state, as shown in FIG. 2 (d). It is sent to the magnet material separation and recovery process. In this magnet material separation / recovery step, as shown in FIG. 7A, the fixing jig 29 fixing the rotor 1 is rotated 180 ° and suddenly stopped. At this time, when the rare earth magnet material 3 a falls from the end 1 a of the rotor 1 due to its own weight, the rare earth magnet material 3 a is collected by the magnet material collection box 32.

  Next, as shown in FIG. 7B, the fixing jig 29 to which the rotor 1 is fixed is moved to the position of the guide member 39 on the vibration conveyor 30. Then, the V block of the fixing jig 29 is released, and the rotor 1 is dropped onto the pole 30a provided on the vibration conveyor and inserted into the hole 1d at the center of the rotor 1. At this time, as shown in FIG. 7C, since the tip of the pole 30a is formed at an acute angle, it is surely inserted into the hole 1d of the rotor 1.

  Further, when the rare earth magnet material 3a included in the rotor 1 is separated from the magnet through hole 1g of the rotor 1 due to an impact when the rotor 1 is dropped and inserted into the pole 30a, the vibration conveyor The magnet material is dropped onto a magnet material collection conveyor 31 disposed below 30 and conveyed to a magnet material collection box 32 provided on the downstream side of the magnet material collection conveyor 31. Is done.

  The rotor 1 dropped on the pole 30a provided on the vibration conveyor 30 is conveyed on the vibration conveyor 30 by being vibrated by the vibration load means 16 with the pole 30a being inserted into the hole 1d. At that time, the rare earth magnet material 3 a included in the rotor 1 is separated from the magnet through-hole 1 g of the rotor 1 by vibration and is placed on the magnet material collection conveyor 31 disposed below the vibration conveyor 30. Fall. Then, it is sent to a magnet material collection box 32 provided on the downstream side of the magnet material collection conveyor 31 and is collected by the magnet material collection box 32.

  Further, when the rotor 1 is being conveyed by the vibration conveyor 30, the impact member is dropped on the rotor 1 by the impact load means 17 disposed above the vibration conveyor 30, and an impact is applied to the rotor 1. Thereby, the rare earth magnet material 3 a that has not been separated by the vibration of the vibration conveyor 30 is forcibly separated and falls onto the magnet material collection conveyor 31, and the magnet material provided on the downstream side of the magnet material collection conveyor 31. It is collected by the collection box 32. Then, the collected rare earth magnet material 3a is recycled.

  Furthermore, the rotor 1 from which all the contained rare earth magnet material 3a is separated is recovered by the rotor recovery box 33 provided on the downstream side of the vibration conveyor 30, and is recycled as an iron-based material.

  According to the rare earth magnet material recovery system according to the above-described embodiment, the rotor separating means 4 for separating the rotor 1 from the motor member 2, the demagnetizing means 5 for demagnetizing the rare earth magnet 3 provided in the rotor 1, Since a disassembling means 6 for disassembling the rotor 1 having the magnetized rare earth magnet material 3a and a magnet material separating / recovering means 7 for separating and recovering the rare earth magnet material 3a from the disassembled rotor 1, the rare earth magnet is provided. The motor member 2 having the rotor 1 provided with 3 is separated or disassembled for each part, and the rare earth magnet 3 provided in the rotor 1 is demagnetized, so that the demagnetized rare earth magnet material 3 a can be easily removed from the rotor 1. Can be separated. Thereby, it can collect | recover without mixing different raw materials in the rare earth magnet raw material 3a, and other components can also be collect | recovered separately for every same material, and can be recycled and utilized for every material.

  The rotor separating unit 4 includes a fixing unit 11 that fixes the rotor 1 and a hydraulic cylinder 12 that applies pressure to the shell 10 containing the rotating body 9 in a direction away from the rotor 1. The rotor 1 can be easily separated from the shaft 8 that is provided integrally with the shell 10 that contains the rotor. As a result, the rotor 1 can be separated without being deformed.

  The disassembling means 5 includes a laser pointer 13 for specifying the position of the pin 1c, a cutting drill 14 for cutting and removing the pin 1c, and a brush member 15 for removing the pressing plate 1b from which the pin 1c has been cut and removed. Therefore, when installing the rotor 1 on the fixing jig 29 or the like, the rotor 1 can be installed without worrying about the position of the pin 1c, and the pressing plate 1b is fixed to the rotor 1 by at least three pins 1c. However, it is possible to efficiently remove the pin 1c and remove the pressing plate.

  Furthermore, when the rare earth magnet material 3a is separated from the rotor 1, the vibration load means 16 and the impact load means 17 are used, so that the rare earth magnet material 3a contained in the rotor 1 can be reliably separated and taken out. . As a result, the rare earth magnet material 3a and other materials such as iron, copper, and aluminum can be individually recovered, and each can be recycled and used.

  In the above embodiment, the rare earth magnet 3 included in the rotor 1 has been described only when it is a neodymium magnet. However, the present invention is not limited to this. For example, a case where a samarium cobalt magnet is used can be used. It is. In that case, since the Curie temperature of the samarium cobalt magnet is 750 to 800 ° C., the heating temperature of the heating furnace 24 is 800 ° C.

  It can utilize for the motor member used for a compressor etc.

DESCRIPTION OF SYMBOLS 1 Rotor 1a End 1b Holding plate 1c Pin 2 Motor member 3 Rare earth magnet 3a Rare earth magnet material 4 Rotor separating means 5 Demagnetizing means 6 Decomposing means 7 Magnet material separating and collecting means 8 Shaft 9 Rotating body 10 Shell 11 Fixing means 12 Hydraulic cylinder (Pressure load means)
13 Laser pointer (position specifying means)
14 Cutting drill (cutting removal means)
15 Brush member (detaching means)
16 Vibration load means 17 Impact load means

Claims (3)

A rare earth magnet material recovery system for recovering a rare earth magnet material from a motor member having a rotor equipped with a rare earth magnet,
Rotor separating means for separating the rotor from the motor member;
Demagnetizing means for heating the separated rotor and demagnetizing the rare earth magnet;
Disassembling means for disassembling the rotor including the demagnetized rare earth magnet material;
Magnetic material separation and recovery means for separating and recovering the rare earth magnet material from the disassembled rotor ,
The rotor includes the embedded rare earth magnet fixed by a pressing plate, and the pressing plate is fixed by at least three pins inserted in the axial direction of the rotor,
The disassembling means includes position specifying means for specifying the position of the pin fixing the pressing plate, cutting removal means for cutting and removing the pin based on position information specified by the position specifying means, and the pin A rare earth magnet material recovery system comprising: removal means for removing the presser plate removed by cutting . In the motor member, a shaft is fitted in the center of the rotor, a shell including a rotating body is integrally provided at one end of the shaft, and can be inserted in an axial direction from the end of the rotor. The above rare earth magnet is included,
The rotor separating means separates the rotor from a shaft that is integrally provided with a fixing means for fixing the rotor and a pressure that is applied to the shell in a direction away from the rotor, and the shell enclosing the rotating body. The rare earth magnet material recovery system according to claim 1, further comprising pressure load means for causing the rare earth magnet material to recover. 3. The magnet material separation / recovery means comprises vibration load means for applying vibration to the disassembled rotor, and impact load means for applying an impact to the rotor subjected to vibration. The rare earth magnet material recovery system described.

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