An outer rotor servo motor magnet steel fixing mechanism

Abstract

The utility model belongs to servo motor outer rotor technical field, and disclose a kind of outer rotor servo motor magnetic steel fixing mechanism, including first fixed ring, the outside fixed setting of first fixed ring is provided with fixed frame, the inside fixed setting of fixed frame is provided with sliding slot border, the inside sliding of sliding slot border is provided with magnetic steel body, one end of magnetic steel body is fixedly provided with sharp head, the outside sliding of sharp head is provided with clamping block, and clamping block slides inside fixed frame, the inside sliding connection of clamping block has reinforcing shaft, and reinforcing shaft is fixedly connected with fixed frame, by the above scheme, the problem that magnetic steel is not completely fixed is solved, avoid loose when magnetic steel high-speed rotation for a long time, lead to the situation that rotor is not stable, guarantee the stability and firmness of magnetic steel when rotating, guarantee the normal use of motor simultaneously.

Description

Technical Field

[0001] This utility model belongs to the field of servo motor external rotor technology, specifically an external rotor servo motor magnet fixing mechanism. Background Technology

[0002] Servo motors can control speed and position with very high accuracy. They can convert voltage signals into torque and speed to drive the controlled object. The rotor speed of a servo motor is controlled by the input signal and can respond quickly. The magnets in an external rotor motor are permanent magnets mounted on the external rotor of the motor, used to generate a magnetic field that interacts with the stator windings to achieve electromagnetic conversion.

[0003] Because the fixing technology of magnets in existing technology is not perfect, magnets may loosen when rotating at high speeds. This can affect motor performance or even cause complete damage to the motor or even a safety accident. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a magnet fixing mechanism for an external rotor servo motor, which offers the advantage of stabilizing the magnet. This invention solves the problem of incomplete magnet fixing, preventing the magnet from loosening during prolonged high-speed rotation and causing rotor instability. It ensures the stability and firmness of the magnet during rotation, while also guaranteeing the normal operation of the motor.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an external rotor servo motor magnet fixing mechanism, comprising a first fixing ring, a fixing frame fixedly disposed on the outer side of the first fixing ring, a sliding groove frame fixedly disposed on the inner side of the fixing frame, a magnet body slidably disposed inside the sliding groove frame, a pointed end fixedly disposed on one end of the magnet body, a locking block slidably fitted on the outer side of the pointed end, and the locking block slidably sliding inside the fixing frame, a reinforcing shaft slidably connected inside the locking block, and the reinforcing shaft fixedly connected to the fixing frame, a spring sleeved on the outer side of the reinforcing shaft, with one side of the spring fitted to the locking block and the other side fitted to the fixing frame.

[0006] Preferably, a plurality of rear baffles are fixedly provided on the top surface of the first fixing ring, and the rear baffles are fixedly connected to the fixing frame, and the inner side of the rear baffles is in contact with the magnet body.

[0007] Preferably, a second fixing ring is fitted to the outer side of the fixing frame, and the second fixing ring is fitted to the magnet body.

[0008] Preferably, an inner baffle is fixedly provided on the top surface of the second fixing ring, and the inner baffle is in contact with the magnet body.

[0009] Preferably, the top surface of the second fixing ring is fixedly provided with multiple fixing edges, and the fixing edges are in contact with the fixing frame.

[0010] Preferably, an outer ring is fitted around the outside of the fixing frame, and multiple fixing screws are threaded inside the outer ring. The fixing screws on one side penetrate the fixing frame, and the fixing screws on the other side penetrate the fixing frame and are threadedly connected to the fixing edge.

[0011] Preferably, a stator is fixedly disposed inside the first fixed ring, and a rotor shaft is fixedly disposed outside the stator, with the rotor shaft passing through the second fixed ring.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention fixes the magnet body by sliding it along the inner side of the sliding groove of the fixed frame until it is in contact with the first fixed ring. As the magnet body slides, the pointed end pushes the locking block backward, and the locking block compresses the spring on the outside of the reinforcing shaft. When the pointed end is in contact with the first fixed ring, the locking block is ejected by the spring and locked at the connection between the pointed end and the magnet body, thereby fixing the magnet body and ensuring that its position does not shift during rotation. This solves the problem of incomplete magnet fixing and avoids loosening of the magnet during long-term high-speed rotation, which could lead to unstable rotor rotation. It ensures the stability and firmness of the magnet during rotation and guarantees the normal use of the motor. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the outer ring of this utility model;

[0016] Figure 3 This is a schematic diagram of the sliding groove frame mounting structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the mounting structure of the fixing plate of this utility model;

[0018] Figure 5 This is a schematic diagram of the spring mounting structure of this utility model.

[0019] In the diagram: 1. First fixing ring; 2. Fixing frame; 201. Sliding groove frame; 202. Rear baffle; 3. Magnet body; 301. Pointed end; 4. Locking block; 5. Reinforcing shaft; 6. Spring; 7. Second fixing ring; 701. Fixing edge; 702. Inner baffle; 8. Outer ring; 9. Fixing screw; 10. Stator; 11. Rotor shaft. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1 to 5 As shown, this utility model provides a magnet fixing mechanism for an external rotor servo motor, including a first fixing ring 1. A fixing frame 2 is fixedly disposed on the outer side of the first fixing ring 1. A sliding groove frame 201 is fixedly disposed on the inner side of the fixing frame 2. A magnet body 3 is slidably disposed inside the sliding groove frame 201. A pointed tip 301 is fixedly disposed at one end of the magnet body 3. A locking block 4 is slidably fitted on the outer side of the pointed tip 301 and slides inside the fixing frame 2. A reinforcing shaft 5 is slidably connected inside the locking block 4 and is fixedly connected to the fixing frame 2. A spring 6 is sleeved on the outer side of the reinforcing shaft 5, with one side of the spring 6 fitting against the locking block 4 and the other side fitting against the fixing frame 2, thus fixing the magnet body. 3. Slide along the inner side of the sliding groove frame 201 of the fixed frame 2 until it is in contact with the first fixed ring 1. When the magnet body 3 slides, the tip 301 will push the locking block 4 to move backward. At the same time, the locking block 4 compresses the spring 6 on the outside of the reinforcing shaft 5. When the tip 301 is in contact with the first fixed ring 1, the locking block 4 will be popped out by the spring 6 and locked at the connection between the tip 301 and the magnet body 3, thereby fixing the magnet body 3 and ensuring that its position will not shift when rotating. This solves the problem of incomplete magnet fixing and avoids the magnet from loosening when rotating at high speed for a long time, which would cause the rotor to rotate unstably. This ensures the stability and firmness of the magnet when rotating and also ensures the normal use of the motor.

[0022] Specifically, a plurality of rear baffles 202 are fixedly provided on the top surface of the first fixing ring 1, and the rear baffles 202 are fixedly connected to the fixing frame 2, and the inner side of the rear baffles 202 is in contact with the magnet body 3. The rear baffles 202 are used to limit the outer side of the end of the magnet body 3 near the tip 301.

[0023] Furthermore, a second fixing ring 7 is fitted to the outer side of the fixing frame 2, and the second fixing ring 7 is fitted to the magnet body 3. The second fixing ring 7 can fix the other end of the magnet body 3.

[0024] Furthermore, an inner baffle 702 is fixedly provided on the top surface of the second fixing ring 7, and the inner baffle 702 is in contact with the magnet body 3. The inner baffle 702 is used to fix the interior of the magnet body 3 on the side close to the second fixing ring 7.

[0025] It is worth noting that the top surface of the second fixing ring 7 is fixedly provided with multiple fixing edges 701, and the fixing edges 701 are attached to the fixing frame 2. The fixing edges 701 and the fixing frame 2 cooperate with each other, thereby forming a positioning between the first fixing ring 1 and the second fixing ring 7, thus helping to install them quickly.

[0026] It is worth noting that an outer ring 8 is fitted on the outside of the fixed frame 2. Multiple fixing screws 9 are connected to the inner thread of the outer ring 8. One fixing screw 9 penetrates the fixed frame 2, and the other fixing screw 9 penetrates the fixed frame 2 and is threadedly connected to the fixing edge 701. The outer ring 8 fixes its internal components again through the fixing screws 9.

[0027] It is worth mentioning that a stator 10 is fixedly installed inside the first fixed ring 1, and a rotor shaft 11 is fixedly installed on the outside of the stator 10, and the rotor shaft 11 passes through the second fixed ring 7.

[0028] The magnet body 3 is existing technology and will not be described in detail. Additionally, this utility model also includes a power supply, controller, and switch, which are not the main technical points of this patent and will not be described in detail. The "front, back, left, and right" views of this device are... Figure 1 The direction shown in the diagram is the reference.

[0029] Working principle:

[0030] When installing the magnet body 3, firstly, slide the magnet body 3 along the inner sliding groove frame 201 of the fixed frame 2 until it is in contact with the first fixing ring 1 on the outer side of the stator 10. The rear baffle 202 is used to fix the rear side of the magnet body 3. When the magnet body 3 slides, the pointed end 301 will push the locking block 4 to move backward. The locking block 4 compresses the spring 6 on the outer side of the reinforcing shaft 5 at the same time. When the pointed end 301 is in contact with the first fixing ring 1, the locking block 4 will be popped out by the spring 6 and locked at the connection between the pointed end 301 and the magnet body 3, thereby fixing the magnet body 3 and ensuring that its position will not shift when rotating. Then, put the outer ring 8 on the outer side of the fixed frame 2. The outer ring 8 and the outer ring 8 are... The outer side of the magnet body 3 is also restricted, and then the second fixing ring 7 is placed on the other end of the fixing frame 2 to fix the other end of the magnet body 3. The inner baffle 702 plays the role of fixing the inner side of the magnet body 3. Finally, the outer ring 8 is connected to the fixing frame 2 and the fixing edge 701 by the fixing screw 9 to complete the final installation and fixing. The rotor shaft 11 is used to drive the other parts to rotate. This utility model solves the problem of incomplete magnet fixing, avoids the magnet from loosening when rotating at high speed for a long time, and prevents the rotor from rotating unstablely. It ensures the stability and firmness of the magnet when rotating, and at the same time ensures the normal use of the motor.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An outer rotor servo motor magnet fixing mechanism, comprising a first fixing ring (1), characterized in that: A fixed frame (2) is fixedly provided on the outer side of the first fixed ring (1). A sliding groove frame (201) is fixedly provided on the inner side of the fixed frame (2). A magnet body (3) is slidably provided inside the sliding groove frame (201). A pointed tip (301) is fixedly provided at one end of the magnet body (3). A locking block (4) is slidably attached to the outer side of the pointed tip (301). The locking block (4) slides inside the fixed frame (2). A reinforcing shaft (5) is slidably connected inside the locking block (4). The reinforcing shaft (5) is fixedly connected to the fixed frame (2). A spring (6) is sleeved on the outer side of the reinforcing shaft (5). One side of the spring (6) is attached to the locking block (4) and the other side is attached to the fixed frame (2).

2. The magnet fixing mechanism for an external rotor servo motor according to claim 1, characterized in that: The top surface of the first fixing ring (1) is fixedly provided with multiple rear baffles (202), and the rear baffles (202) are fixedly connected to the fixing frame (2), and the inner side of the rear baffles (202) is in contact with the magnet body (3).

3. The magnet fixing mechanism for an external rotor servo motor according to claim 1, characterized in that: The outer side of the fixed frame (2) is fitted with a second fixed ring (7), and the second fixed ring (7) is fitted with the magnet body (3).

4. The magnet fixing mechanism for an external rotor servo motor according to claim 3, characterized in that: The top surface of the second fixing ring (7) is fixedly provided with an inner baffle (702), and the inner baffle (702) is in contact with the magnet body (3).

5. The magnet fixing mechanism for an external rotor servo motor according to claim 3, characterized in that: The top surface of the second fixing ring (7) is fixedly provided with multiple fixing edges (701), and the fixing edges (701) are in contact with the fixing frame (2).

6. The magnet fixing mechanism for an external rotor servo motor according to claim 1, characterized in that: The outer ring (8) is fitted on the outside of the fixed frame (2). The inner thread of the outer ring (8) is connected to a plurality of fixing screws (9). The fixing screw (9) on one side passes through the fixed frame (2), and the fixing screw (9) on the other side passes through the fixed frame (2) and is threadedly connected to the fixing edge (701).

7. The magnet fixing mechanism for an external rotor servo motor according to claim 1, characterized in that: A stator (10) is fixedly disposed inside the first fixed ring (1), and a rotor shaft (11) is fixedly disposed outside the stator (10), and the rotor shaft (11) passes through the second fixed ring (7).

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