Tempering furnace for producing neodymium-iron-boron magnet of high-performance linear motor

Abstract

The tempering furnace comprises a base and a tempering furnace body fixed to the top end of the base, a first sealing door and a second sealing door are fixedly embedded in the two ends of the tempering furnace body respectively, a rotating plate is installed on the side wall of the first sealing door, and a rotating shaft is installed on the side wall of the second sealing door. A plurality of neodymium-iron-boron magnet supporting frames are fixed to the rotating plate in an annular array mode, motor neodymium-iron-boron magnet bodies are inserted into the neodymium-iron-boron magnet supporting frames in a matched mode, and a moving frame which is of an L-shaped structure and used for supporting a first sealing door is arranged at the top end of the base in a sliding mode. A driving mechanism used for driving the moving frame to move transversely is embedded in the base, and the first sealing door and the second sealing door are both tightly connected with the inner wall of the tempering furnace main body, so that the tempering heating stability and the temperature rise uniformity of the motor neodymium iron boron magnet main body are improved; and the convenience of discharging the neodymium iron boron magnet main body of the motor from the tempering furnace main body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tempering of motor neodymium iron boron magnets, in particular to a tempering furnace for producing high-performance linear motor neodymium iron boron magnets. Background Art

[0002] NdFeB magnets are used in permanent magnet motors. Common permanent magnet motors include permanent magnet S DC motors and permanent magnet AC motors. Permanent magnet DC motors are divided into brush DC motors, brushless motors, stepper motors, etc. Permanent magnet AC motors are divided into synchronous permanent magnet motors, permanent magnet servo motors, etc. They can also be divided into permanent magnet linear motors and permanent magnet rotary motors according to the mode of movement. Since neodymium magnet materials have excellent magnetic properties, permanent magnetic fields can be established without additional energy after magnetization. Replacing traditional motor electric fields with rare earth permanent magnet motors is not only highly efficient, but also simple in structure, reliable in operation, small in size, and light in weight, thereby improving the performance of the motor. During the production process of neodymium iron boron magnets, tempering is required to sinter and fluorinate the neodymium iron boron rare earth permanent magnet materials.

[0003] Patent 202320744175.8 discloses a back-burning and tempering device for the production of NdFeB rare earth permanent magnet materials, including a supporting power mechanism, a sintering furnace, a clamping and fixing mechanism and a lifting control mechanism. The sintering furnace is arranged at the top of the supporting power mechanism, the clamping and fixing mechanism is arranged on both sides of the sintering furnace, and the lifting control mechanism is arranged outside the sintering furnace. The supporting power mechanism includes a supporting plate, a rotating seat, a roller, a supporting dumping block, a bidirectional motor, a transmission shaft and a transmission. The rotating seat is fixedly connected to the top of the supporting plate, the roller is rotatably connected to the top of the rotating seat, and the supporting dumping block is installed at one end of the rotating seat. The back-burning and tempering device for the production of NdFeB rare earth permanent magnet materials lifts the sintering furnace through the lifting control mechanism, opens the furnace door of the sintering furnace, and facilitates the discharge of the NdFeB rare earth permanent magnet material in the sintering furnace.

[0004] However, this technical solution cannot achieve the purpose of facilitating the discharge of NdFeB rare earth permanent magnet materials by only adjusting the height of the tempering furnace, and the NdFeB magnets used for linear motors need to be arranged in an arc-shaped structure. Therefore, it is difficult for traditional tempering furnaces to position the arc-shaped NdFeB magnets of motors during the production process, resulting in poor stability and inconvenient discharge of NdFeB magnets of motors during the tempering process. Utility Model Content

[0005] The purpose of the utility model is to address the deficiencies in the prior art and provide a tempering furnace for the production of high-performance linear motor neodymium iron boron magnets. The tempering and fixing function of the motor neodymium iron boron magnet body is achieved through a driving mechanism structure in conjunction with a neodymium iron boron magnet support frame structure for fixing the motor neodymium iron boron magnet body, thereby solving the problems of stability of the motor neodymium iron boron magnet body and convenience of discharging.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tempering furnace for the production of high-performance linear motor neodymium iron boron magnets, comprising a base and a tempering furnace body fixed on the top of the base, wherein the first and second sealing doors are respectively embedded and fixed at both ends of the tempering furnace body, a rotating plate is installed on the side wall of the first sealing door, a plurality of neodymium iron boron magnet support frames are fixed in a circular array on the rotating plate, the motor neodymium iron boron magnet body is fitted and plugged into the neodymium iron boron magnet support frame, a movable frame with an L-shaped structure for supporting the first sealing door is slidably provided at the top of the base, and a driving mechanism for driving the movable frame to move horizontally is embedded in the base.

[0007] Preferably, the first sealed door and the second sealed door are both tightly connected to the inner wall of the tempering furnace body, and a handle is fixedly installed on the side wall of the second sealed door.

[0008] Furthermore, brackets fixed to the base are sleeved on both ends of the tempering furnace body, and a sliding groove is provided at the center of the base.

[0009] Furthermore, a support portion that fits the base is fixed to the bottom end of the movable frame, and a second motor connected to the rotating plate is installed at the top end of the movable frame.

[0010] Furthermore, the driving mechanism includes a lead screw rotatably arranged in a slide groove and a first motor fixedly mounted on a side wall of the base, and a shaft of the first motor is fixedly connected to the lead screw.

[0011] Furthermore, a sliding part is fixedly mounted on one end of the support part away from the first sealing door, and the sliding part is inserted in the sliding groove.

[0012] Furthermore, both ends of the lead screw are rotatably connected to the inner wall of the slide groove through bearings, and the lead screw is threadedly inserted in the sliding part.

[0013] Furthermore, the inner wall of the NdFeB magnet support frame is damping-connected to the motor NdFeB magnet body, and the outer wall of the NdFeB magnet support frame is provided with a plurality of heat-conducting grooves.

[0014] The beneficial effects of the utility model are:

[0015] (1) The utility model provides a first sealing door and a second sealing door at both ends of the tempering furnace body, respectively. During the tempering process, the second sealing door is opened by a handle, and the motor NdFeB magnet body is damped and inserted into the NdFeB magnet support frame. The second motor drives the rotating disk and the multiple NdFeB magnet support frames to rotate, so that the NdFeB magnet support frames can heat the motor NdFeB magnet body from different angles through the multiple heat conduction grooves, thereby improving the stability of the tempering heating of the motor NdFeB magnet body and the uniformity of the temperature rise.

[0016] (2) The utility model fixes a moving frame on the side wall of the first sealing door, starts the first motor to drive the lead screw to rotate after the tempering temperature rises, and the lead screw drives the sliding part and the supporting part to move horizontally on the surface of the base during the rotation process, and separates the first sealing door from the tempering furnace body during the movement, and drives the NdFeB magnet support frame on the rotating plate to move out of the tempering furnace body during the separation process, thereby improving the convenience of unloading the motor NdFeB magnet body from the tempering furnace body.

[0017] In summary, the utility model has the advantages of stability in tempering heating of the motor NdFeB magnet body, uniform heating and convenient discharging. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the NdFeB magnet support frame of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the base of the utility model;

[0021] Figure 4 For this utility model Figure 1 A schematic diagram of the enlarged structure in the middle.

[0022] In the figure: 1. base; 2. first sealed door; 3. tempering furnace body; 4. second sealed door; 5. handle; 6. moving frame; 7. bracket; 8. first motor; 9. second motor; 10. NdFeB magnet support frame; 11. lead screw; 12. support part; 13. sliding part; 14. slide groove; 15. rotating plate; 16. heat conduction groove; 17. motor NdFeB magnet body. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0025] Embodiment 1

[0026] like Figure 1 and Figure 4 As shown, the present embodiment provides a tempering furnace for producing high-performance linear motor NdFeB magnets, comprising a base 1 and a tempering furnace body 3 fixed on the top of the base 1, a first sealing door 2 and a second sealing door 4 are respectively embedded and fixed at both ends of the tempering furnace body 3, a rotating plate 15 is installed on the side wall of the first sealing door 2, a plurality of NdFeB magnet support frames 10 are fixed in a ring array on the rotating plate 15, a motor NdFeB magnet body 17 is fitted and plugged into the NdFeB magnet support frame 10, a moving frame 6 with an L-shaped structure for supporting the first sealing door 2 is slidably provided at the top of the base 1, and a driving mechanism for driving the moving frame 6 to move horizontally is embedded in the base 1.

[0027] The first sealed door 2 and the second sealed door 4 are tightly connected to the inner wall of the tempering furnace body 3, and a handle 5 is fixedly installed on the side wall of the second sealed door 4. The inner wall of the NdFeB magnet support frame 10 is damping connected to the motor NdFeB magnet body 17, and the outer wall of the NdFeB magnet support frame 10 is provided with a plurality of heat conduction grooves 16. The second sealed door 4 is opened by holding the handle 5, and the motor NdFeB magnet body 17 is dampingly inserted into the NdFeB magnet support frame 10, and the rotating disk and the plurality of NdFeB magnet support frames 10 are driven to rotate by the second motor 9, so that the NdFeB magnet support frame 10 can reach the motor NdFeB magnet body 17 from different angles through the plurality of heat conduction grooves 16.

[0028] Embodiment 2

[0029] like Figure 2 and Figure 3As shown, the components identical or corresponding to those in the first embodiment are marked with the corresponding reference numerals in the first embodiment. For the sake of simplicity, only the differences from the first embodiment are described below. The difference between the second embodiment and the first embodiment is that: both ends of the tempering furnace body 3 are sleeved with brackets 7 fixed to the base 1, a slide groove 14 is provided at the center of the base 1, a support portion 12 in contact with the base 1 is fixed to the bottom end of the mobile frame 6, and a second motor 9 connected to the rotating plate 15 is installed at the top end of the mobile frame 6. The driving mechanism includes a lead screw 11 rotatably arranged in the slide groove 14 and a first motor 8 fixedly installed on the side wall of the base 1. The shaft of the first motor 8 is fixedly connected to the lead screw 11, and the support portion 12 is away from the first motor 8. A sliding part 13 is fixedly installed at one end of the sealing door 2, and the sliding part 13 is inserted in the slide groove 14. Both ends of the lead screw 11 are rotatably connected to the inner wall of the slide groove 14 through bearings, and the lead screw 11 is threadedly inserted in the sliding part 13. During the rotation process, the lead screw 11 drives the sliding part 13 and the supporting part 12 to move laterally on the surface of the base 1, and in the process of movement, the first sealing door 2 is separated from the tempering furnace body 3, and during the separation process, the neodymium iron boron magnet support frame 10 on the rotating plate 15 is driven to move out of the tempering furnace body 3.

[0030] Working steps

[0031] Step 1. During the tempering process, hold the handle 5 to open the second sealed door 4, and insert the motor NdFeB magnet body 17 into the NdFeB magnet support frame 10 with damping, and drive the rotating disk and multiple NdFeB magnet support frames 10 to rotate through the second motor 9, so that the NdFeB magnet support frame 10 can reach the motor NdFeB magnet body 17 from different angles through multiple heat conduction grooves 16. After tempering and heating, start the first motor 8 to drive the screw 11 to rotate. During the rotation process, the screw 11 drives the sliding part 13 and the supporting part 12 to move horizontally on the surface of the base 1, and separates the first sealed door 2 from the tempering furnace body 3 during the movement, and drives the NdFeB magnet support frame 10 on the rotating plate 15 to move out of the tempering furnace body 3 during the separation process, thereby improving the convenience of discharging the motor NdFeB magnet body 17 from the tempering furnace body 3.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tempering furnace for producing high-performance linear motor NdFeB magnets, comprising a base and a tempering furnace body fixed on the top of the base, characterized in that: A first sealing door and a second sealing door are respectively embedded and fixed at both ends of the tempering furnace body, a rotating plate is installed on the side wall of the first sealing door, a plurality of NdFeB magnet support frames are fixed in a circular array on the rotating plate, a motor NdFeB magnet body is fitted and plugged into the NdFeB magnet support frame, a moving frame with an L-shaped structure for supporting the first sealing door is slidably provided at the top of the base, and a driving mechanism for driving the moving frame to move horizontally is embedded in the base.

2. The tempering furnace for producing high-performance linear motor NdFeB magnets according to claim 1, characterized in that: The first sealed door and the second sealed door are both tightly connected to the inner wall of the tempering furnace body, and a handle is fixedly installed on the side wall of the second sealed door.

3. The tempering furnace for producing high-performance linear motor NdFeB magnets according to claim 1, characterized in that: Both ends of the tempering furnace body are sleeved with brackets fixed to the base, and a sliding groove is opened at the center of the base.

4. The tempering furnace for producing high-performance linear motor NdFeB magnets according to claim 1, characterized in that: A supporting portion that is in contact with the base is fixed at the bottom end of the moving frame, and a second motor connected to the rotating plate is installed at the top end of the moving frame.

5. The tempering furnace for producing high-performance linear motor NdFeB magnets according to claim 4, characterized in that: The driving mechanism comprises a lead screw rotatably arranged in a slide slot and a first motor fixedly mounted on a side wall of the base, wherein a shaft of the first motor is fixedly connected to the lead screw.

6. The tempering furnace for producing high-performance linear motor NdFeB magnets according to claim 5, characterized in that: A sliding part is fixedly mounted on one end of the support part away from the first sealing door, and the sliding part is inserted in the sliding groove.

7. The tempering furnace for producing high-performance linear motor NdFeB magnets according to claim 6, characterized in that: Both ends of the lead screw are rotatably connected to the inner wall of the slide groove through bearings, and the lead screw is threadedly inserted in the sliding part.

8. The tempering furnace for producing high-performance linear motor NdFeB magnets according to claim 1, characterized in that: The inner wall of the NdFeB magnet support frame is dampingly connected to the NdFeB magnet body of the motor, and a plurality of heat conduction grooves are formed on the outer wall of the NdFeB magnet support frame.

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