CN219490070U

CN219490070U - Homogenization isothermal annealing device for sintered NdFeB magnet

Info

Publication number: CN219490070U
Application number: CN202320231895.4U
Authority: CN
Inventors: 熊立; 汪征; 申燕飞
Original assignee: Zhejiang Weida Magnetic Materials Co ltd
Current assignee: Zhejiang Weida Magnetic Materials Co ltd
Priority date: 2023-02-16
Filing date: 2023-02-16
Publication date: 2023-08-08
Anticipated expiration: 2033-02-16

Abstract

The utility model discloses a sintered neodymium-iron-boron magnet homogenizing isothermal annealing device, which comprises a base for forming a mounting base of the sintered neodymium-iron-boron magnet homogenizing isothermal annealing device, wherein the top of the base is provided with a cooling mechanism for storing liquid, an annealing box for annealing is arranged in the cooling mechanism, a bearing mechanism for bearing the sintered neodymium-iron-boron magnet is arranged in the annealing box, a telescopic mechanism for adjusting the height of the bearing mechanism up and down is arranged on the base, a transmission mechanism for driving the bearing mechanism to rotate is arranged on the bearing mechanism, and a plurality of heaters distributed at equal intervals are arranged on the inner wall surface of the annealing box. Through starting electric telescopic handle, can make loading mechanism and drive mechanism reciprocate along the axial direction of outer tube in step for telescopic machanism does not occupy great stroke space on the base, has effectively reduced the occupation space of this sintered neodymium iron boron magnetism body homogenization isothermal annealing device, also is convenient for the last unloading operation of neodymium iron boron magnetism body.

Description

Homogenization isothermal annealing device for sintered NdFeB magnet

Technical Field

The utility model belongs to the technical field of neodymium-iron-boron magnet production equipment, and particularly relates to a sintered neodymium-iron-boron magnet homogenizing isothermal annealing device.

Background

Neodymium-iron-boron magnets, also called neodymium magnets, are tetragonal crystals formed from neodymium, iron, and boron. Neodymium-iron-boron magnets are widely used in electronic products such as hard disks, cell phones, headphones, battery powered tools, and the like.

The patent document with the prior publication number of CN216337802U discloses a high-temperature annealing device for neodymium iron boron magnets, which comprises a bottom plate, wherein an annealing furnace is arranged at the top end of the bottom plate, a containing mechanism is arranged in the annealing furnace and used for containing neodymium iron boron magnets, a moving mechanism is arranged at the top end of the bottom plate and used for driving the containing mechanism to be placed in the annealing furnace; the storage mechanism comprises a driving motor, a sealing cover, a heating rod, a storage barrel and a threaded cover, one end of the driving motor is connected with the moving mechanism, the output end of the driving motor penetrates through the sealing cover to be connected with the heating rod, and the circumferential side wall of the heating rod is connected with the storage barrel.

Above-mentioned patent is inside does not need the manual annealing stove of advancing with whole receiving vessel for neodymium iron boron magnet is put into high temperature annealing stove more convenient, also can drive the inside neodymium iron boron magnet of receiving vessel simultaneously and rotate, makes neodymium iron boron magnet heated annealing more even, but the blowing port orientation annealing stove of its receiving vessel, and the long flexible cylinder that moves of needs customization just can arrange the neodymium iron boron magnet inside the receiving vessel from the blowing port, leads to flexible cylinder to occupy great stroke space on the bottom plate, and then causes the great problem of device occupation space.

Disclosure of Invention

In order to solve the technical problems, the utility model aims to provide a sintered neodymium-iron-boron magnet homogenizing isothermal annealing device, so as to solve the technical defects that the prior neodymium-iron-boron magnet high-temperature annealing device has a discharge port of a storage barrel facing an annealing furnace, and a long telescopic cylinder is required to be customized to place the neodymium-iron-boron magnet inside the storage barrel from the discharge port, so that the telescopic cylinder occupies a larger stroke space in a moving mechanism, and the device occupies a larger space.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a sintering neodymium iron boron magnetism body homogenization isothermal annealing device, is including the base that is used for forming this sintering neodymium iron boron magnetism body homogenization isothermal annealing device installation basis, and its top is equipped with the cooling body that is used for the stock solution, the inside of cooling body is equipped with the annealing case that is used for annealing, the inside of annealing case is equipped with the mechanism that bears that is used for bearing the weight of sintering neodymium iron boron magnetism body, be equipped with on the base and be used for carrying out the telescopic machanism of height-adjusting about bearing the weight of the mechanism, be equipped with on the mechanism that bears and be used for driving its pivoted drive mechanism, a plurality of equidistance distributed heaters are installed to the internal face of annealing case.

As a further scheme of the utility model, the cooling mechanism comprises a cooling box arranged at the top of the base, the upper part and the lower part of one side of the cooling box are respectively communicated with water pipes for liquid inlet and liquid outlet, one end of the water pipe positioned at the upper part, which is far away from the cooling box, is communicated with an external cooling liquid box through a water pump, the annealing box is fixedly connected to the inside of the cooling box, and a liquid storage cavity is formed between the annealing box and the cooling box.

As a further preferable scheme of the utility model, the bearing mechanism comprises a first cover plate covered on the top of the cooling box, at least two lantern rings are fixedly connected to the bottom of the first cover plate, a storage cylinder is connected between the two lantern rings in a common rotation mode through a bearing, and a second cover plate for sealing the storage cylinder is hinged to one of the lantern rings.

As the preferable scheme of the utility model, the telescopic mechanism comprises an electric telescopic rod arranged at the top of the base, outer pipes are fixedly connected to four corners of the top of the base, an inner rod is slidably connected to an inner cavity of the outer pipe, and the output end of the electric telescopic rod and the top end of the inner rod are fixedly connected to the bottom of the first cover plate.

As a further scheme of the utility model, the transmission mechanism comprises a driven gear fixedly connected to the storage cylinder, a driving gear meshed with the driven gear is movably arranged on the first cover plate in a penetrating manner, and a motor capable of driving the driving gear to rotate is arranged at the top of the first cover plate.

As a further preferable mode of the utility model, a shield capable of covering the driving gear is fixedly connected to the first cover plate.

As a preferable mode of the utility model, the shield is provided with a through hole for the output shaft of the motor to pass through.

Compared with the prior art, the sintered neodymium-iron-boron magnet homogenizing isothermal annealing device provided by the utility model has the following beneficial effects: by starting the electric telescopic rod, the bearing mechanism and the transmission mechanism can synchronously move up and down along the axial direction of the outer tube, so that the telescopic mechanism does not occupy a larger stroke space on the base, the occupied space of the sintered NdFeB magnet homogenizing isothermal annealing device is effectively reduced, and the feeding and discharging operation of the NdFeB magnet is also facilitated; through the starter motor, can make the cylinder use the axis of the bearing between lantern ring and the cylinder to rotate as the centre of a circle, can guarantee that neodymium iron boron magnetism body can be better fully contact the hot air, promoted annealing effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only examples of embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of an embodiment of the present utility model;

FIG. 2 is a schematic perspective view of an embodiment of the present utility model in an open state;

FIG. 3 is a schematic front view in cross section of an embodiment of the present utility model;

fig. 4 is a schematic perspective view illustrating an open state of a second cover structure according to an embodiment of the utility model.

Reference numerals:

1-base, 2-cooling mechanism, 21-cooling tank, 22-water pipe, 3-annealing tank, 4-bearing mechanism, 41-first apron, 42-lantern ring, 43-storage cylinder, 44-second apron, 5-telescopic machanism, 51-electric telescopic rod, 52-outer tube, 53-inner rod, 6-drive mechanism, 61-driven gear, 62-driving gear, 63-motor, 64-guard shield, 7-heater, 8-temperature sensor.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the following detailed description of the implementation routine of the present utility model is provided with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the description of the embodiments of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "inner", "outer", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model.

In the description of the embodiments of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, integrally connected, or detachably connected; may be a communication between the interiors of two elements; either directly or indirectly through intermediaries, the specific meaning of the terms in the embodiments of the utility model will be understood by those skilled in the art in the specific case.

Referring to fig. 1-4, a sintered neodymium-iron-boron magnet homogenizing isothermal annealing device comprises a base 1 for forming a mounting base of the sintered neodymium-iron-boron magnet homogenizing isothermal annealing device, a cooling mechanism 2 for storing liquid, an annealing box 3 for annealing, a bearing mechanism 4 for bearing the sintered neodymium-iron-boron magnet, a telescopic mechanism 5 for adjusting the height of the bearing mechanism 4 up and down, and a transmission mechanism 6 for driving the bearing mechanism 4 to rotate.

The cooling mechanism 2 is arranged at the top of the base 1, the annealing box 3 is arranged in the cooling mechanism 2, the bearing mechanism 4 is arranged in the annealing box 3, the telescopic mechanism 5 is arranged on the base 1, the transmission mechanism 6 is arranged on the bearing mechanism 4, and a plurality of heaters 7 distributed at equal intervals are arranged on the inner wall surface of the annealing box 3.

Referring to fig. 1-3, the cooling mechanism 2 includes a cooling tank 21 mounted on the top of the base 1, water pipes 22 for liquid inlet and liquid outlet are respectively connected to the upper and lower parts of one side of the cooling tank 21, one end of the upper water pipe 22, which is far away from the cooling tank 21, is connected with an external cooling liquid tank through a water pump, the annealing tank 3 is fixedly connected to the inside of the cooling tank 21, and a liquid storage cavity is formed between the annealing tank 3 and the cooling tank 21. The temperature sensor 8 is installed to one side of the inner wall surface of the annealing box 3, can detect the temperature in the annealing box 3 through the temperature sensor 8, the controller is installed on the cooling box 21, the controller is respectively electrically connected with the temperature sensor 8, the heater 7 and the water pump, the temperature sensor 8 detects the temperature in the annealing box 3, information is fed back to the controller, and if the temperature is too high, the controller controls the water pump to introduce cooling liquid into the liquid storage cavity, timely conduct and emit heat in the annealing box 3, and isothermal annealing work is facilitated.

Referring to fig. 2-4, the bearing mechanism 4 includes a first cover plate 41 covering the top of the cooling box 21, at least two collars 42 are fixedly connected to the bottom of the first cover plate 41, a storage cylinder 43 is connected between the two collars 42 through bearings in a rotation mode, the storage cylinder 43 is composed of a plurality of cylinders, the cylinders are distributed in an annular equidistant mode with the central axis of the bearings as the center of a circle, and a second cover plate 44 for sealing the storage cylinder 43 is hinged to one collar 42. The synchronous annealing treatment can be carried out on a plurality of neodymium iron boron magnets through the bearing mechanism 4, and the annealing efficiency is improved.

Referring to fig. 1-2, the telescopic mechanism 5 comprises an electric telescopic rod 51 installed at the top of the base 1, outer tubes 52 are fixedly connected to four corners of the top of the base 1, an inner cavity of each outer tube 52 is slidably connected with an inner rod 53, and an output end of the electric telescopic rod 51 and the top end of each inner rod 53 are fixedly connected to the bottom of the first cover plate 41. And the electric telescopic rod 51 is started, and the output end of the electric telescopic rod 51 can finally drive the bearing mechanism 4 to move upwards or downwards, so that the neodymium iron boron magnet can be fed and discharged.

Referring to fig. 1-3, the transmission mechanism 6 includes a driven gear 61 fixedly connected to the storage barrel 43, a driving gear 62 meshed with the driven gear 61 is movably disposed on the first cover 41, and a motor 63 capable of driving the driving gear 62 to rotate is mounted on the top of the first cover 41. Starting the motor 63, the output shaft of the motor 63 can finally drive the driven gear 61 and the bearing mechanism 4 to synchronously rotate, so that the neodymium-iron-boron magnet can be rotated, the neodymium-iron-boron magnet is uniformly heated, and the annealing efficiency of the neodymium-iron-boron magnet is effectively improved. A shield 64 capable of covering the drive gear 62 is fixedly connected to the first cover 41. The shield 64 can be used for shielding the driving gear 62, so that the driving gear 62 is effectively prevented from being touched by mistake in the rotation process, and the safety of the driving gear 62 during operation is improved. The shield 64 is provided with a through hole through which the output shaft of the motor 63 passes. The through hole can ensure that the output shaft of the motor 63 drives the driving gear 62 to normally rotate.

The working principle of the embodiment of the present utility model is briefly described below:

discharging: starting the electric telescopic rod 51, so that the output end of the electric telescopic rod 51 drives the bearing mechanism 4 and the transmission mechanism 6 to synchronously move upwards, the first cover plate 41 drives the outer tube 52 to slide upwards in the inner cavity of the inner rod 53 until the bearing mechanism 4 moves to the maximum (shown in fig. 2), opening the second cover plate 44 (shown in fig. 4) to place the neodymium iron boron magnet to be annealed in the storage cylinder 43, closing the second cover plate 44, and then starting the electric telescopic rod 51 again, so that the output end of the electric telescopic rod 51 drives the bearing mechanism 4 and the transmission mechanism 6 to synchronously move downwards until the bearing mechanism 4 moves to the original state (shown in fig. 1);

annealing: the heater 7 is started, the neodymium iron boron magnet can be heated at a high temperature, meanwhile, the motor 63 is started, the output shaft of the motor 63 drives the driving gear 62 to rotate by taking the central axis of the output shaft of the motor as the center of a circle, the driving gear 62 drives the driven gear 61 to synchronously rotate, the driven gear 61 and the storage cylinder 43 rotate by taking the central axis of a bearing between the lantern ring 42 and the storage cylinder 43 as the center of a circle, the neodymium iron boron magnet can be guaranteed to be better fully contacted with hot air, the annealing effect is improved, when annealing is needed, cooling water is introduced into a liquid storage cavity between the cooling box 21 and the annealing box 3 through the water pipe 22 positioned at the upper part, heat in the annealing box 3 is timely conducted and dissipated, the temperature in the annealing box 3 can be detected through the temperature sensor 8, the heating temperature is convenient to control, and the temperature is kept for a period of time to enable the annealing to be reduced to a certain temperature, and isothermal annealing is realized.

While the basic principles of the present utility model have been shown and described, the foregoing is provided by way of illustration of a preferred embodiment of the utility model, and not by way of limitation, the foregoing embodiment and description are merely illustrative of the principles of the utility model, and any modifications, equivalents, improvements or modifications not within the spirit and scope of the utility model should be included within the scope of the utility model.

Claims

1. A sintered NdFeB magnet homogenizing isothermal annealing device is characterized in that: including being used for forming base (1) of this sintered neodymium iron boron magnetism body homogenization isothermal annealing device installation basis, its top is equipped with cooling body (2) that are used for the stock solution, the inside of cooling body (2) is equipped with and is used for annealed annealing case (3), the inside of annealing case (3) is equipped with and is used for bearing the mechanism (4) that bear of sintered neodymium iron boron magnetism body, be equipped with on base (1) and be used for carrying out telescopic machanism (5) of high regulation from top to bottom to bearing mechanism (4), be equipped with on bearing mechanism (4) and be used for driving its pivoted drive mechanism (6), a plurality of equidistance distributed heater (7) are installed to the internal face of annealing case (3).

2. The sintered neodymium-iron-boron magnet homogenizing isothermal annealing device according to claim 1, wherein: the cooling mechanism (2) comprises a cooling box (21) arranged at the top of the base (1), a water pipe (22) for liquid inlet and liquid outlet is respectively communicated with the upper part and the lower part of one side of the cooling box (21), one end, far away from the cooling box (21), of the water pipe (22) located at the upper part is communicated with an external cooling liquid box through a water pump, the annealing box (3) is fixedly connected to the inside of the cooling box (21), and a liquid storage cavity is formed between the annealing box (3) and the cooling box (21).

3. The sintered neodymium-iron-boron magnet homogenizing isothermal annealing device according to claim 2, wherein: the bearing mechanism (4) comprises a first cover plate (41) which is covered on the top of the cooling box (21), at least two lantern rings (42) are fixedly connected to the bottom of the first cover plate (41), a storage barrel (43) is connected between the two lantern rings (42) in a rotating mode through bearings, and a second cover plate (44) used for sealing the storage barrel (43) is hinged to one lantern ring (42).

4. A sintered neodymium-iron-boron magnet homogenizing isothermal annealing device according to claim 3, wherein: the telescopic mechanism (5) comprises an electric telescopic rod (51) arranged at the top of the base (1), outer tubes (52) are fixedly connected to four corners of the top of the base (1), an inner cavity of each outer tube (52) is slidably connected with an inner rod (53), and the output end of the electric telescopic rod (51) is fixedly connected with the top end of each inner rod (53) at the bottom of the first cover plate (41).

5. The sintered nd-fe-b magnet homogenizing isothermal annealing device according to claim 4, wherein: the transmission mechanism (6) comprises a driven gear (61) fixedly connected to the storage cylinder (43), a driving gear (62) meshed with the driven gear (61) is movably arranged on the first cover plate (41) in a penetrating mode, and a motor (63) capable of driving the driving gear (62) to rotate is arranged at the top of the first cover plate (41).

6. The sintered nd-fe-b magnet homogenizing isothermal annealing device according to claim 5, wherein: a shield (64) capable of covering the driving gear (62) is fixedly connected to the first cover plate (41).

7. The sintered nd-fe-b magnet homogenizing isothermal annealing device according to claim 6, wherein: the shield (64) is provided with a through hole for the output shaft of the motor (63) to pass through.