Fixing frame neodymium iron boron magnet

Abstract

The utility model belongs to the technical field of neodymium-iron-boron magnets, and particularly relates to a fixing frame neodymium-iron-boron magnet which comprises a first sleeve, a second sleeve is arranged below the first sleeve, the first sleeve and the second sleeve are connected through a connecting assembly, and the first sleeve and the second sleeve can be inserted into the inner side of a rotating shaft through a rotating tool after being connected. The rotary knob rotates to drive the rotating tool to rotate, the rotating tool can drive the rotating shaft to rotate, the rotating shaft can drive the lead screws to rotate through the bevel gears after rotating, the lead screws can drive the sliding blocks to slide under stress after rotating, and the sliding blocks can drive the locking blocks to slide into the inner sides of the mounting blocks after sliding under stress. Therefore, the first sleeve and the second sleeve are connected stably, and the first sleeve and the second sleeve are not prone to loosening in the high-speed rotation process.

Description

Technical Field

[0001] The utility model relates to the technical field of NdFeB magnets, in particular to a NdFeB magnet with a fixed frame. Background Art

[0002] Outer rotor brushless motors are widely used in certain industries because of their high power density. The magnets used in outer rotor brushless motors are mostly ferrite, bonded NdFeB or sintered NdFeB. Ferrite is the cheapest, but its magnetic properties are the weakest. Therefore, sintered NdFeB is usually used in applications that require high power density.

[0003] The announcement number CN 217036868 U discloses a fixed frame neodymium iron boron magnet, comprising a first sleeve and a second sleeve, wherein the first sleeve comprises a connecting section and a fixing section with the same inner diameter and different outer diameters, the connecting section is provided with a guide block in the same axial direction as the connecting section, the connecting section is provided with a locking buckle, a first fixing block for fixing the magnet is provided in the fixing section, and a first card groove evenly distributed is provided on one side of the first fixing block; a guide groove corresponding to the connecting section is provided on the second sleeve, and a second fixing block is provided in the second sleeve;

[0004] When in use, the device needs to rotate at high speed and is connected by a spring. During the rotation, the spring is easily shaken after being subjected to force, which makes the connection loose and detached. There are holes on the top, which makes the sealing poor and the internal components are easily damaged. Therefore, we propose a fixed frame neodymium iron boron magnet. Utility Model Content

[0005] The utility model aims to provide a fixed frame neodymium iron boron magnet to solve the existing problems.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A fixed frame NdFeB magnet comprises a first sleeve, a second sleeve is arranged below the first sleeve, a fixed frame is fixedly installed on the top inner wall of the first sleeve; a connecting component is installed on the first sleeve, the second sleeve and the fixed frame; and a control component is installed on the first sleeve.

[0008] As a further improvement of the above scheme, the connecting assembly includes a support plate, a fixed block, a clamping block, a screw rod, a fixed rod, a sliding block, a locking block, a rotating shaft, a bevel gear and a mounting block, the support plate is fixedly mounted on the bottom of the fixed frame, the fixed block is fixedly mounted on the four corners of the bottom of the support plate, the clamping block is fixedly mounted at the middle of the bottom of the support plate, the screw rod is rotatably mounted on the inner sides of the fixed block and the clamping block, the fixed rod is fixedly mounted between the inner sides of the fixed block and the clamping block, the sliding block is arranged on the outer sides of the screw rod and the fixed rod, the locking block is fixedly mounted on one side of the sliding block, the rotating shaft is rotatably mounted between the fixed frame and the inner side of the support plate, the bevel gear is fixedly mounted on the outer sides of the rotating shaft and the screw rod, the adjacent screw rods are meshed, and the mounting block is fixedly mounted on the bottom inner wall of the second sleeve.

[0009] As a further improvement of the above solution, the control assembly includes a knob, a rotating tool and a sealing cover plate.

[0010] As a further improvement of the above solution, an operating groove is provided at the top of the rotating shaft, and the outer diameter of the rotating tool is the same as the inner diameter of the operating groove.

[0011] By adopting the above technical solution, after the rotating tool is engaged with the operating groove, the rotating tool can be controlled to drive the rotating shaft to rotate.

[0012] As a further improvement of the above solution, a threaded hole and a through slot are provided on one side of the sliding block, the external threads on the outer side of the screw rod are respectively engaged with the threaded holes, and the outer diameter of the fixing rod is the same as the inner diameter of the through slot.

[0013] By adopting the above technical solution, the external thread direction on the outside of the screw rod is matched with the thread direction of the threaded hole on the inside of the sliding block, thereby controlling the sliding direction of the sliding block, so that the sliding block can slide on the outside of the screw rod and the fixed rod after being subjected to force.

[0014] As a further improvement of the above solution, the bevel gears on the outer side of the rotating shaft are respectively meshed with the bevel gears on the outer side of the screw rod, and the bevel gears on the outer side of the screw rod do not abut against each other.

[0015] By adopting the above technical solution, the rotating shaft can control the screw rod to rotate respectively, so that the screw rod is not easily interfered during the rotation process.

[0016] As a further improvement of the above solution, a fixing groove is provided on the top of the first sleeve, and the outer diameter of the sealing cover plate is the same as the inner diameter of the fixing groove.

[0017] As a further improvement of the above solution, threaded holes are provided on the front and rear sides of the top of the rotating shaft and the sealing cover plate, and fixing bolts are installed on the inner threads of the threaded holes.

[0018] By adopting the above technical solution, the sealing cover plate can be fixed by fixing bolts after the first sleeve and the second sleeve are connected, so that the sealing effect between the first sleeve and the second sleeve is better.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] (1) The utility model is a fixed frame NdFeB magnet, which connects the first sleeve and the second sleeve through a connection component. After the connection, the rotating tool can be inserted into the inner side of the rotating shaft, so that the knob drives the rotating tool to rotate after being rotated, and the rotating tool can drive the rotating shaft to rotate, so that the rotating shaft can drive the screw rod to rotate through the bevel gear after being rotated, so that the multiple screw rods can drive the sliding block to slide under force after being rotated, and the sliding block can drive the locking block to slide into the inner side of the mounting block after being slid under force, so that the connection between the first sleeve and the second sleeve is relatively stable, and the first sleeve and the second sleeve are not easy to loosen during high-speed rotation;

[0021] (2) The utility model provides a fixed frame NdFeB magnet. Through the control assembly, after the first sleeve and the second sleeve are connected, the knob and the rotating tool can be retracted, the sealing cover plate can be placed in the top fixing groove of the first sleeve, and the sealing cover plate can be fixed by fixing bolts, so that the sealing effect of the first sleeve and the second sleeve is better after the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 This is a three-dimensional structural diagram of a fixed frame neodymium iron boron magnet proposed by the utility model;

[0024] Figure 2 for Figure 1 Schematic diagram of the structure of part A in FIG.

[0025] Figure 3 It is a partial three-dimensional structural schematic diagram of a fixed frame neodymium iron boron magnet proposed by the utility model;

[0026] Figure 4 This is a partial three-dimensional structural schematic diagram of a fixed frame neodymium iron boron magnet proposed by the utility model.

[0027] In the figure: 1. first sleeve; 2. second sleeve; 3. fixed frame; 4. support plate; 5. fixed block; 6. clamping block; 7. screw rod; 8. fixed rod; 9. sliding block; 10. locking block; 11. rotating shaft; 12. bevel gear; 13. mounting block; 14. knob; 15. rotating tool; 16. sealing cover plate. DETAILED DESCRIPTION

[0028] 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.

[0029] refer to Figure 1-4 A fixed frame neodymium iron boron magnet includes a first sleeve 1, a second sleeve 2 is arranged below the first sleeve 1, and a fixed frame 3 is fixedly installed on the top inner wall of the first sleeve 1; a connecting component, the connecting component is installed on the first sleeve 1, the second sleeve 2 and the fixed frame 3; and a control component is installed on the first sleeve 1.

[0030] In this embodiment, the connecting assembly includes a support plate 4, a fixed block 5, a clamping block 6, a screw rod 7, a fixed rod 8, a sliding block 9, a locking block 10, a rotating shaft 11, a bevel gear 12 and a mounting block 13. The support plate 4 is fixedly installed at the bottom of the fixed frame 3, the fixed block 5 is fixedly installed at the four corners of the bottom of the support plate 4, the clamping block 6 is fixedly installed at the middle of the bottom of the support plate 4, the screw rod 7 is rotatably installed on the inner side of the fixed block 5 and the clamping block 6, the fixed rod 8 is fixedly installed between the inner sides of the fixed block 5 and the clamping block 6, the sliding block 9 is arranged on the outer side of the screw rod 7 and the fixed rod 8, the locking block 10 is fixedly installed on one side of the sliding block 9, the rotating shaft 11 is rotatably installed between the inner side of the fixed frame 3 and the support plate 4, the bevel gear 12 is fixedly installed on the outer side of the rotating shaft 11 and the screw rod 7, the adjacent screw rods 7 are meshed, and the mounting block 13 is fixedly installed on the bottom inner wall of the second sleeve 2.

[0031] In this embodiment, the control assembly includes a knob 14, a rotating tool 15 and a sealing cover plate 16.

[0032] In this embodiment, an operating groove is formed at the top of the rotating shaft 11, and the outer diameter of the rotating tool 15 is the same as the inner diameter of the operating groove.

[0033] In this embodiment, a threaded hole and a through slot are provided on one side of the sliding block 9, the external threads on the outer side of the screw rod 7 are respectively engaged with the threaded holes, and the outer diameter of the fixing rod 8 is the same as the inner diameter of the through slot.

[0034] In this embodiment, the bevel gears 12 on the outer side of the rotating shaft 11 are respectively meshed with the bevel gears 12 on the outer side of the screw rod 7 , and the bevel gears 12 on the outer side of the screw rod 7 do not abut against each other.

[0035] In this embodiment, a fixing groove is formed at the top of the first sleeve 1 , and the outer diameter of the sealing cover plate 16 is the same as the inner diameter of the fixing groove.

[0036] In this embodiment, threaded holes are provided at the front and rear sides of the top of the rotating shaft 11 and the sealing cover plate 16, and fixing bolts are installed in the inner threads of the threaded holes.

[0037] The implementation principle of one embodiment of the present application is as follows: the first sleeve 1 and the second sleeve 2 are connected, and after the connection, the rotating tool 15 can be inserted into the inner side of the rotating shaft 11, so that the knob 14 drives the rotating tool 15 to rotate after being rotated, so that the rotating tool 15 can drive the rotating shaft 11 to rotate, so that the rotating shaft 11 can drive the screw rod 7 to rotate through the bevel gear 12 after being rotated, so that the multiple screw rods 7 can drive the sliding block 9 to slide under force after being rotated, so that the sliding block 9 can drive the locking block 10 to slide into the inner side of the mounting block 13 after being slid under force, so that the connection between the first sleeve 1 and the second sleeve 2 is relatively stable, and the first sleeve 1 and the second sleeve 2 are not easy to loosen during high-speed rotation; after the first sleeve 1 and the second sleeve 2 are connected, the knob 14 and the rotating tool 15 can be retracted, and the sealing cover plate 16 can be placed in the top fixing groove of the first sleeve 1, and the sealing cover plate 16 can be fixed by fixing bolts, so that the sealing effect of the first sleeve 1 and the second sleeve 2 is better after being connected.

[0038] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0039] The above is a detailed introduction to a fixed frame neodymium iron boron magnet provided by the utility model. This article uses specific embodiments to explain the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A fixed frame neodymium iron boron magnet, characterized in that: include: A first sleeve (1), a second sleeve (2) being arranged below the first sleeve (1), and a fixing frame (3) being fixedly mounted on the top inner wall of the first sleeve (1); A connecting assembly, wherein the connecting assembly is mounted on the first sleeve (1), the second sleeve (2) and the fixed frame (3); A control assembly is mounted on the first sleeve (1).

2. A fixed frame neodymium iron boron magnet according to claim 1, characterized in that: The connecting assembly comprises a support plate (4), a fixed block (5), a clamping block (6), a screw rod (7), a fixed rod (8), a sliding block (9), a locking block (10), a rotating shaft (11), a bevel gear (12) and a mounting block (13); the support plate (4) is fixedly mounted on the bottom of the fixed frame (3); the fixed block (5) is fixedly mounted on the four corners of the bottom of the support plate (4); the clamping block (6) is fixedly mounted in the middle of the bottom of the support plate (4); the screw rod (7) is rotatably mounted on the inner sides of the fixed block (5) and the clamping block (6); The fixed rod (8) is fixedly mounted between the inner sides of the fixed block (5) and the clamping block (6); the sliding block (9) is arranged on the outer sides of the screw rod (7) and the fixed rod (8); the locking block (10) is fixedly mounted on one side of the sliding block (9); the rotating shaft (11) is rotatably mounted between the fixed frame (3) and the inner sides of the support plate (4); the bevel gear (12) is fixedly mounted on the outer sides of the rotating shaft (11) and the screw rod (7), and the adjacent screw rods (7) are meshed with each other; and the mounting block (13) is fixedly mounted on the bottom inner wall of the second sleeve (2).

3. A fixing frame NdFeB magnet according to claim 1, characterized in that: The control assembly comprises a knob (14), a rotating tool (15) and a sealing cover plate (16).

4. A fixing frame NdFeB magnet according to claim 2, characterized in that: An operating groove is provided at the top of the rotating shaft (11), and the outer diameter of the rotating tool (15) is the same as the inner diameter of the operating groove.

5. A fixing frame NdFeB magnet according to claim 2, characterized in that: A threaded hole and a through slot are provided on one side of the sliding block (9), the external threads on the outer side of the screw rod (7) are respectively engaged with the threaded holes, and the outer diameter of the fixing rod (8) is the same as the inner diameter of the through slot.

6. A fixing frame NdFeB magnet according to claim 2, characterized in that: The bevel gears (12) on the outside of the rotating shaft (11) are respectively meshed with the bevel gears (12) on the outside of the screw rod (7), and the bevel gears (12) on the outside of the screw rod (7) do not abut against each other.

7. A fixing frame NdFeB magnet according to claim 3, characterized in that: A fixing groove is provided at the top of the first sleeve (1), and the outer diameter of the sealing cover plate (16) is the same as the inner diameter of the fixing groove.

8. A fixing frame NdFeB magnet according to claim 2, characterized in that: The rotating shaft (11) and the sealing cover plate (16) are provided with threaded holes at the front and rear sides of the top, and fixing bolts are threadedly installed inside the threaded holes.

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