Vacuum rapid quenching equipment for processing high-performance sintered neodymium-iron-boron permanent magnet

Abstract

The utility model relates to the technical field of neodymium-iron-boron magnets, and discloses vacuum rapid quenching equipment for processing a high-performance sintered neodymium-iron-boron permanent magnet, which comprises a first box body, and a heating mechanism is arranged at the top of the first box body. Raw materials are injected into a melting crucible through a feeding pipe through a heating mechanism, then the feeding pipe is closed through an electromagnetic valve, a vacuum pump is started, the melting crucible is in a vacuum state, the raw materials are heated through the melting crucible, meanwhile, a first motor is started, a stirring rod rotates, and the raw materials in the melting crucible are stirred; after the raw materials are heated, a discharging pipe is opened through an electromagnetic valve, so that the raw materials in the melting crucible are discharged and fall on an auger rod, a second motor is started, a first belt wheel rotates, and the second belt wheel rotates through cooperation of the first belt wheel and a belt; and rotation of the second belt pulley enables the auger rod machine to rotate, so that the raw materials move rightwards and are discharged through the discharging barrel.

Description

Technical Field

[0001] The utility model relates to the technical field of neodymium iron boron magnets, in particular to a vacuum rapid quenching device for processing high-performance sintered neodymium iron boron permanent magnets. Background Technique

[0002] Most traditional processing equipment is provided with three groups of crucibles: a melting crucible, a heat preservation crucible, and a nozzle crucible, and the pressure difference between the nozzle crucible and the vacuum space where it is located is used to realize the spraying of liquid alloy. It is worth affirming that this design well realizes the stability of neodymium iron boron processing, but the processing efficiency often cannot be guaranteed, and the production capacity is insufficient in the face of a large demand.

[0003] According to the patent CN 216891101 U, a vacuum rapid quenching device for processing high-performance sintered neodymium iron boron permanent magnets includes a support frame. A vacuum tank and a storage tank are provided on the upper surface of the support frame. The storage tank is located in the upper left of the vacuum tank. Support columns are provided on the lower surface of the storage tank, and the lower ends of the support columns are fixedly connected to the support frame to support and fix the storage tank. A discharge pipe is provided on the right side of the vacuum tank, and a collection tank is provided at the other end of the discharge pipe. A carrier plate is provided at the lower part of the right side of the support frame. The lower end of the collection tank abuts against the surface of the carrier plate. Multiple groups of collection tanks are provided, and the carrier plate can provide support for the spare collection tanks.

[0004] This patent can store raw materials through the storage tank, enabling the equipment to continuously process. After opening the valve, the raw materials enter the melting crucible along the feeding pipe and are melted by the melting crucible. The motor controls the rotation of the water-cooled impeller, and the water-cooled impeller drives the melted raw materials into the collection tank for storage. The water in the water-cooled impeller can be recycled by using the water inlet pipe and the drain pipe, which can not only save water resources, but also ensure that the temperature of the water-cooled impeller will not rise rapidly, and the cooling effect on the melted raw materials is better. When processing a large amount of neodymium iron boron, the quality of neodymium iron boron can still be guaranteed. However, after the raw materials are injected into the melting crucible, they are directly heated, and the raw materials will form a pile in the melting crucible and are not easily heated evenly. Content of the Utility Model

[0005] The purpose of the utility model is to provide a vacuum rapid quenching device for processing high-performance sintered neodymium iron boron permanent magnets to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A vacuum rapid quenching device for processing high-performance sintered neodymium iron boron permanent magnets includes a first box body. Support legs are fixedly connected to the bottom of the first box body. A feeding pipe is fixedly connected to the top of the box body near the left side. A melting crucible is fixedly connected to the top of the inner wall of the first box body. A discharge pipe is fixedly connected to the bottom of the melting crucible. A discharge cylinder is fixedly connected to the bottom of the first box body near the right side. A heating mechanism is arranged on the top of the first box body, and a cooling mechanism is arranged on the right side of the first box body;

[0007] The heating mechanism includes a stirring assembly and a discharging assembly. The stirring assembly is arranged on the top of the first box body, and the discharging assembly is arranged inside the first box body.

[0008] Preferably, the stirring assembly includes a sealed bearing fixedly connected to the top of the first box body. A stirring rod is fixedly connected to the inner wall of the sealed bearing. A connecting frame is fixedly connected to the top of the first box body, and a first motor is fixedly connected to the bottom of the connecting frame. A vacuum pump is fixedly connected to the right side of the first box body, and the output end of the vacuum pump is fixedly connected to a connecting pipe.

[0009] Preferably, the output end of the first motor is fixedly connected to the top end of the stirring rod, and the other end of the connecting pipe extends into the melting crucible.

[0010] Preferably, the discharging assembly includes a first bearing fixedly connected to the right side near the bottom of the inner wall of the first box body. A second bearing is fixedly connected to the left side near the bottom of the first box body corresponding to the first bearing. A screw conveyor rod is fixedly connected to the inner wall of the first bearing. An L-shaped block is fixedly connected to the left side of the first box body, and a second motor is fixedly connected to the right side of the L-shaped block. The output end of the second motor is fixedly connected to a first pulley. A second pulley is fixedly connected to the surface of the screw conveyor rod near the left end. A belt is sleeved between the first pulley and the second pulley.

[0011] Preferably, the surface of the screw conveyor rod near the left end is fixedly connected to the inner wall of the second bearing, and the first pulley and the second pulley are on the same vertical line.

[0012] Preferably, the cooling mechanism includes a first through groove and a second box body. The first through groove is opened on the right side of the inner wall of the first box body. A second box body is fixedly connected to the right side of the first box body. Second through grooves are opened on both sides of the second box body corresponding to the first through groove. A blower is fixedly connected to the second through groove on the right side of the second box body. A chute is opened on the front surface of the second box body, and a condenser is slidably connected in the chute. A handle is fixedly connected to the front surface of the condenser. A threaded hole is opened on the top of the second box body, and a bolt is threadedly connected in the threaded hole.

[0013] Preferably, the position of the threaded hole on the top of the second box body and the position of the chute are on the same vertical line.

[0014] Compared with the prior art, the present utility model provides a vacuum rapid quenching device for high-performance sintered neodymium iron boron permanent magnet processing, which has the following beneficial effects:

[0015] 1. The vacuum rapid quenching equipment for processing high-performance sintered NdFeB permanent magnets injects raw materials into the melting crucible through the feeding pipe by means of a heating mechanism. After that, the feeding pipe is closed by an electromagnetic valve, and a vacuum pump is started to put the inside of the melting crucible in a vacuum state. The melting crucible is used to heat the raw materials. At the same time, the first motor is started to make the stirring rod rotate, stirring the raw materials in the melting crucible to make the heating of the raw materials more uniform. After the raw materials are heated, the discharge pipe is opened through the electromagnetic valve, and the raw materials in the melting crucible are discharged and will fall on the auger rod. Then the second motor is started to make the first pulley rotate. The cooperation of the first pulley and the belt will make the second pulley rotate, and the rotation of the second pulley will make the auger rod machine rotate to move the raw materials to the right and discharge them through the discharge cylinder.

[0016] 2. The vacuum rapid quenching equipment for processing high-performance sintered NdFeB permanent magnets, through a cooling mechanism, while the raw materials are falling, the fan and the condenser are started. The operation of the fan blows the cold air generated by the condenser into the first box body to cool the falling raw materials. Turn the bolt to make the bolt move out of the threaded hole, then pull out the condenser from the chute, and then slide a new condenser into the chute and fix the condenser with the bolt. Brief Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings:

[0018] Figure 1 It is a three-dimensional structure schematic diagram of the present invention;

[0019] Figure 2 It is a front view schematic diagram of the box body structure of the present invention;

[0020] Figure 3 It is a schematic diagram of the stirring component structure of the present invention;

[0021] Figure 4 It is a schematic diagram of the discharge component structure of the present invention;

[0022] Figure 5 It is a schematic diagram of the first through groove, the second box body and the fan of the present invention;

[0023] Figure 6 It is a split schematic diagram of the cooling mechanism structure of the present invention.

[0024] In the figure: 1. First box body; 2. Support leg; 3. Feed pipe; 4. Melting crucible; 5. Discharge pipe; 6. Discharge cylinder; 7. Heating mechanism; 71. Stirring assembly; 711. Sealed bearing; 712. Stirring rod; 713. Connecting frame; 714. First motor; 715. Vacuum pump; 716. Connecting pipe; 72. Discharge assembly; 721. First bearing; 722. Second bearing; 723. Auger rod; 724. L-shaped block; 725. Second motor; 726. First pulley; 727. Second pulley; 728. Belt; 8. Cooling mechanism; 81. First through groove; 82. Second box body; 83. Second through groove; 84. Fan; 85. Chute; 86. Condenser; 87. Handle; 88. Threaded hole; 89. Bolt. Detailed implementation mode

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0026] In the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation" and other terms shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0027] The present invention provides the following technical solutions:

[0028] Embodiment 1

[0029] Please refer to Figures 1-4 , a vacuum rapid quenching device for the processing of high-performance sintered neodymium iron boron permanent magnets, including a first box body 1, a support leg 2 is fixedly connected to the bottom of the first box body 1, a feed pipe 3 is fixedly connected to the top of the box body near the left side, a melting crucible 4 is fixedly connected to the top of the inner wall of the first box body 1, a discharge pipe 5 is fixedly connected to the bottom of the melting crucible 4, a discharge cylinder 6 is fixedly connected to the bottom of the first box body 1 near the right side, a heating mechanism 7 is arranged on the top of the first box body 1, and a cooling mechanism 8 is arranged on the right side of the first box body 1;

[0030] The heating mechanism 7 includes a stirring assembly 71 and a discharge assembly 72. The stirring assembly 71 is arranged on the top of the first box body 1, and the discharge assembly 72 is arranged inside the first box body 1.

[0031] The stirring assembly 71 includes a sealed bearing 711 which is fixedly connected to the top of the first box body 1. The inner wall of the sealed bearing 711 is fixedly connected with a stirring rod 712. A connecting frame 713 is fixedly connected to the top of the first box body 1. The bottom of the connecting frame 713 is fixedly connected with a first motor 714. A vacuum pump 715 is fixedly connected to the right side of the first box body 1. The output end of the vacuum pump 715 is fixedly connected with a connecting pipe 716.

[0032] The output end of the first motor 714 is fixedly connected to the top end of the stirring rod 712. The other end of the connecting pipe 716 extends into the melting crucible 4.

[0033] The discharging assembly 72 includes a first bearing 721 which is fixedly connected to the inner wall of the right side of the first box body 1 near the bottom. A second bearing 722 is fixedly connected to the corresponding position on the left side of the first box body 1 near the bottom. The inner wall of the first bearing 721 is fixedly connected with an auger rod 723. An L-shaped block 724 is fixedly connected to the left side of the first box body 1. A second motor 725 is fixedly connected to the right side of the L-shaped block 724. The output end of the second motor 725 is fixedly connected with a first pulley 726. A second pulley 727 is fixedly connected to the surface of the auger rod 723 near the left end. A belt 728 is sleeved between the first pulley 726 and the second pulley 727.

[0034] The surface of the auger rod 723 near the left end is fixedly connected to the inner wall of the second bearing 722. The first pulley 726 and the second pulley 727 are on the same vertical line.

[0035] Embodiment Two

[0036] Please refer to Figures 5-6 and, on the basis of Embodiment One, further obtain a cooling mechanism 8.

[0037] The cooling mechanism 8 includes a first through groove 81 and a second box body 82. The first through groove 81 is opened on the inner wall of the right side of the first box body 1. A second box body 82 is fixedly connected to the right side of the first box body 1. Second through grooves 83 are opened on both sides of the second box body 82 corresponding to the first through groove 81. A blower 84 is fixedly connected to the second through groove 83 on the right side of the second box body 82. A chute 85 is opened on the front surface of the second box body 82. A condenser 86 is slidably connected in the chute 85. A handle 87 is fixedly connected to the front surface of the condenser 86. A threaded hole 88 is opened on the top of the second box body 82. A bolt 89 is threadedly connected in the threaded hole 88.

[0038] The position of the threaded hole 88 on the top of the second box body 82 and the position of the chute 85 are on the same vertical line.

[0039] During the actual operation process, when this device is in use, the raw materials are injected into the melting crucible 4 through the feed pipe 3. After that, the feed pipe 3 is closed by the solenoid valve, and the vacuum pump 715 is started to make the inside of the melting crucible 4 in a vacuum state. The melting crucible 4 is used to heat the raw materials. At the same time, the first motor 714 is started to make the stirring rod 712 rotate, stirring the raw materials in the melting crucible 4 to make the raw materials heated more evenly. After the raw materials are heated, the discharge pipe 5 is opened through the solenoid valve, and the raw materials in the melting crucible 4 are discharged and will fall on the auger rod 723. Then the second motor 725 is started to make the first pulley 726 rotate. The cooperation between the first pulley 726 and the belt 728 will make the second pulley 727 rotate. The rotation of the second pulley 727 will make the auger rod 723 rotate, moving the raw materials to the right and discharging them through the discharge cylinder 6.

[0040] While the raw materials are falling, the blower 84 and the condenser 86 are started. The operation of the blower 84 will blow the cold air generated by the condenser 86 into the first box body 1 to cool the falling raw materials. Rotate the bolt 89 to make the bolt 89 move out of the threaded hole 88, and then take out the condenser 86 from the sliding groove 85. Then slide a new condenser 86 into the sliding groove 85 and fix the condenser 86 with the bolt 89.

[0041] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without more limitations, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

Claims

1. A vacuum quenching device for high-performance sintered NdFeB permanent magnet processing, comprising a first housing (1), characterized in that: The bottom of the first box (1) is fixedly connected to a support leg (2), the top of the box near the left side is fixedly connected to a feed pipe (3), the top of the inner wall of the first box (1) is fixedly connected to a melting crucible (4), the bottom of the melting crucible (4) is fixedly connected to a discharge pipe (5), the bottom of the first box (1) is fixedly connected to a discharge cylinder (6), the top of the first box (1) is fixedly connected to the right side, a heating mechanism (7) is provided on the top of the first box (1), and a cooling mechanism (8) is provided on the right side of the first box (1); The heating mechanism (7) comprises a stirring component (71) and a discharging component (72); the stirring component (71) is arranged on the top of the first box body (1); and the discharging component (72) is arranged inside the first box body (1).

2. The vacuum quenching equipment for high-performance sintered NdFeB permanent magnet processing according to claim 1, characterized in that: The stirring assembly (71) comprises a sealed bearing (711), the sealed bearing (711) is fixedly connected to the top of the first box body (1), a stirring rod (712) is fixedly connected to the inner wall of the sealed bearing (711), a connecting frame (713) is fixedly connected to the top of the first box body (1), a first motor (714) is fixedly connected to the bottom of the connecting frame (713), a vacuum pump (715) is fixedly connected to the right side of the first box body (1), and a connecting pipe (716) is fixedly connected to the output end of the vacuum pump (715).

3. The vacuum quenching equipment for high-performance sintered NdFeB permanent magnet processing according to claim 2, characterized in that: The output end of the first motor (714) is fixedly connected to the top of the stirring rod (712), and the other end of the connecting tube (716) extends into the melting crucible (4).

4. The vacuum quenching equipment for high-performance sintered NdFeB permanent magnet processing according to claim 1, characterized in that: The discharging assembly (72) comprises a first bearing (721), the first bearing (721) being fixedly connected to the right side of the inner wall of the first box body (1) near the bottom, a second bearing (722) being fixedly connected to the left side of the first box body (1) near the bottom corresponding to the first bearing (721), an auger rod (723) being fixedly connected to the inner wall of the first bearing (721), an L block (724) being fixedly connected to the left side of the first box body (1), a second motor (725) being fixedly connected to the right side of the L block (724), a first pulley (726) being fixedly connected to the output end of the second motor (725), a second pulley (727) being fixedly connected to the surface of the auger rod (723) near the left end, and a belt (728) being sleeved between the first pulley (726) and the second pulley (727).

5. The vacuum quenching equipment for high-performance sintered NdFeB permanent magnet processing according to claim 4, characterized in that: The surface of the auger rod (723) is fixedly connected to the inner wall of the second bearing (722) near the left end, and the first belt pulley (726) and the second belt pulley (727) are located on the same vertical line.

6. The vacuum quenching equipment for high-performance sintered NdFeB permanent magnet processing according to claim 1, characterized in that: The cooling mechanism (8) comprises a first through slot (81) and a second box (82), wherein the first through slot (81) is provided on the right side of the inner wall of the first box (1), the second box (82) is fixedly connected to the right side of the first box (1), the second box (82) is provided with second through slots (83) on both sides corresponding to the first through slots (81), a fan (84) is fixedly connected in the second through slot (83) on the right side of the second box (82), a slide slot (85) is provided on the front side of the second box (82), a condenser (86) is slidably connected in the slide slot (85), a handle (87) is fixedly connected to the front side of the condenser (86), a threaded hole (88) is provided on the top of the second box (82), a bolt (89) is threadedly connected in the threaded hole (88).

7. The vacuum quenching equipment for high-performance sintered NdFeB permanent magnet processing according to claim 6, characterized in that: The position of the threaded hole (88) at the top of the second box body (82) and the position of the slide groove (85) are on the same vertical line.

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