Modularly-assembled frameless direct-drive motor

Abstract

The utility model relates to the technical field of frameless direct-drive motors, in particular to a frameless direct-drive motor assembled in a modularized mode, and solves the technical problems that stators and rotors of most frameless direct-drive motors are directly contacted and fixed with a machine, and bonding is carried out in the most mode, so that damaged elements of the motor are difficult to take out for replacement when the motor breaks down, and the production cost is reduced. Damaged elements often need to be integrally replaced, waste is easily caused, meanwhile, most rotors are directly and fixedly connected with shafts of machines, the inner diameters of the rotors are fixed, and adaptability to shafts with different diameters is poor; according to the technical scheme, the frameless direct-drive motor assembled modularly comprises a mounting assembly, a stator assembly, a rotor assembly and a shaft sleeve assembly, compared with a traditional frameless direct-drive motor in which a stator and a rotor are directly contacted and fixed with a machine and damaged elements are inconvenient to take out independently for replacement, the frameless direct-drive motor provided by the utility model has the advantages that the stator, the rotor and the fixed structure are installed separately through a modular assembly mode, so that the rotor and the stator are convenient to take down and replace.

Description

Technical Field

[0001] The utility model relates to the technical field of frameless direct drive motors, in particular to a modularly assembled frameless direct drive motor. Background Art

[0002] A frameless direct drive motor is a special frameless brushless permanent magnet synchronous motor, which is measured by output torque and is usually used in high-precision and high-efficiency application scenarios. The design feature of the frameless direct drive motor lies in its frameless structure, which makes the motor compact in volume, easy to be integrated into complex systems, and also helps to improve the overall efficiency and response speed of the system. However, for most frameless direct drive motors, the stator and rotor are directly fixed in contact with the machine, and bonding is the most commonly used method. This makes it difficult to remove the damaged components of the motor for replacement when the motor fails, and the damaged components often need to be replaced as a whole, which is easy to cause waste. At the same time, most rotors are directly fixed in connection with the shaft of the machine, and the inner diameter of the rotor is fixed, so the adaptability to shafts of different diameters is poor. Summary of the Utility Model

[0003] In order to overcome the problems that for most frameless direct drive motors, the stator and rotor are directly fixed in contact with the machine, and bonding is the most commonly used method. This makes it difficult to remove the damaged components of the motor for replacement when the motor fails, and the damaged components often need to be replaced as a whole, which is easy to cause waste. At the same time, most rotors are directly fixed in connection with the shaft of the machine, and the inner diameter of the rotor is fixed, so the adaptability to shafts of different diameters is poor.

[0004] The technical solution of the utility model is: a modularly assembled frameless direct drive motor, including an installation component, a stator component, a rotor component and a bushing component; the stator component is arranged inside the installation component, the rotor component is arranged inside the stator component, and the bushing component is arranged inside the rotor component.

[0005] Preferably, the stator component is installed through the installation component, the rotor component is installed through the bushing component, and the rotor component rotates to output power externally by generating a magnetic field through the energization of the stator component.

[0006] As a preference, the installation component includes a bonding seat and a limiting plate; the limiting plate is arranged inside the bonding seat, and multiple groups of limiting plates are provided; the stator component is installed and fixed by bonding the bonding seat to the machine, and the stator component is prevented from rotating in the bonding seat through the limiting plate.

[0007] As a preference, there is a gap between the limiting plate and the bonding seat, and there is also a gap between multiple groups of limiting plates; the stator component is accommodated through the gap between the limiting plate and the bonding seat, and the stator component is installed and limited at the same time through the gap between multiple groups of limiting plates.

[0008] Preferably, the stator assembly includes a mounting base, a winding base, a limiting base, a connecting base and a connecting groove; the mounting base is arranged inside the gluing base, the winding base is arranged on one side of the mounting base, the limiting base is arranged on one side of the winding base, the connecting base is arranged on one side of the mounting base, and the connecting groove is arranged on one side of the mounting base; the winding base is fixed by the mounting base to wind a coil, the limiting base is used to prevent the coil from slipping out of the winding base, and through the sliding connection between the connecting base and the connecting groove, multiple groups of mounting bases are connected, and at the same time, it is convenient to separately take out the mounting base for replacement.

[0009] Preferably, multiple groups of mounting bases are slidably connected, there is a gap between multiple groups of limiting bases, and the thickness of the winding base is less than the widths of the limiting base and the mounting base; the gap between multiple groups of limiting bases facilitates the wire to pass through the limiting base during winding, and the space formed between multiple groups of winding bases accommodates the coil.

[0010] Preferably, the rotor assembly includes a permanent magnet block, a fixing groove and a fixing ring; the fixing ring is arranged inside the mounting base, the permanent magnet block is arranged on the outer side of the fixing ring, multiple groups of permanent magnet blocks are arranged, and there is a fixing groove between the permanent magnet blocks; the permanent magnet block is fixed by the fixing ring, power is generated by the interaction between the magnetic field of the permanent magnet block itself and the magnetic field generated by the energized coil, and the fixing groove facilitates the fixing of the fixing ring.

[0011] Preferably, the bushing assembly includes a bushing ring, a limiting ring and a limiting rod; the bushing ring is arranged inside the fixing ring, the limiting ring is arranged on one side of the bushing ring, and the limiting rod is arranged on one side of the limiting ring; the machine shaft is connected by the bushing ring, the fixing ring is prevented from slipping out of the bushing ring by the limiting ring, and the fixing ring is fixed by the limiting rod located in the fixing groove.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. Compared with the traditional frameless direct drive motor, the stator and rotor are directly in contact with and fixed to the machine, and bonding is the most commonly used method. This makes it difficult to take out the damaged components of the motor for replacement when the motor fails, and the damaged components often need to be replaced as a whole, which is easy to cause waste. At the same time, the rotor is mostly directly connected and fixed to the shaft of the machine, and the inner diameter of the rotor is fixed, so it has poor adaptability to shafts of different diameters. The device separates and installs the stator and rotor from the fixing structure through a modular assembly method, which is convenient for removing and replacing the rotor and stator.

[0014] 2. When installing the stator, after winding the coil around the winding base, connect multiple sets of mounting bases through the sliding connection between the connecting base and the connecting groove. The limiting base prevents the coil from slipping out of the winding base. Then, place the connected mounting bases into the gap between the gluing base and the limiting plate. The limiting plate is located between two sets of mounting bases to prevent the mounting bases from rotating in the gluing base. Finally, apply adhesive to the outside of the gluing base and then install the gluing base into the machine for gluing. Since the gluing base is glued to the machine, the stator can be taken out separately for replacement. At the same time, a part of the stator can be replaced separately to solve the problem that in most frameless direct-drive motors, the stator and the rotor are directly in contact with the machine for fixation, making it inconvenient to take out and replace damaged components separately.

[0015] 3. When installing the rotor, select a suitable bushing ring according to the diameter of the machine shaft. After aligning the fixing groove between the permanent magnet blocks with the limiting rod, put the fixing ring onto the bushing ring so that the fixing ring abuts against the limiting ring to complete the installation. Since the bushing ring is connected to the machine shaft, one stator can be adapted to different diameters of shafts by using different bushing rings. Description of the Drawings

[0016] Figure 1 Shown is a three-dimensional structural schematic diagram of a modularly assembled frameless direct-drive motor of the present utility model;

[0017] Figure 2 Shown is a three-dimensional structural schematic diagram of the installation assembly of a modularly assembled frameless direct-drive motor of the present utility model;

[0018] Figure 3 Shown is a three-dimensional structural schematic diagram of the stator assembly of a modularly assembled frameless direct-drive motor of the present utility model;

[0019] Figure 4 Shown is a three-dimensional structural schematic diagram of the rotor assembly of a modularly assembled frameless direct-drive motor of the present utility model;

[0020] Figure 5 Shown is a three-dimensional structural schematic diagram of the bushing assembly of a modularly assembled frameless direct-drive motor of the present utility model.

[0021] Description of the Reference Numerals: 1. Installation assembly; 2. Stator assembly; 3. Rotor assembly; 4. Bushing assembly; 101. Gluing base; 102. Limiting plate; 201. Mounting base; 202. Winding base; 203. Limiting base; 204. Connecting base; 205. Connecting groove; 301. Permanent magnet block; 302. Fixing groove; 303. Fixing ring; 401. Bushing ring; 402. Limiting ring; 403. Limiting rod. Detailed Embodiment

[0022] The present utility model will be further described below with reference to the drawings and embodiments.

[0023] Please refer to Figure 1 , the present utility model provides an embodiment: a frameless direct drive motor with modular assembly, including a mounting assembly 1, a stator assembly 2, a rotor assembly 3 and a bushing assembly 4; the stator assembly 2 is arranged inside the mounting assembly 1, the rotor assembly 3 is arranged inside the stator assembly 2, and the bushing assembly 4 is arranged inside the rotor assembly 3.

[0024] Please refer to Figure 2 , in this embodiment, the mounting assembly 1 includes a bonding seat 101 and a limiting plate 102. The limiting plate 102 is arranged inside the bonding seat 101. There are multiple groups of limiting plates 102. The stator assembly 2 is fixedly installed by gluing the bonding seat 101 to the machine. The limiting plate 102 prevents the stator assembly 2 from rotating in the bonding seat 101; there is a gap between the limiting plate 102 and the bonding seat 101, and there is also a gap between multiple groups of limiting plates 102. The stator assembly 2 is accommodated through the gap between the limiting plate 102 and the bonding seat 101, and the stator assembly 2 is installed and limited at the same time through the gap between multiple groups of limiting plates 102.

[0025] Please refer to Figure 3 , in this embodiment, the stator assembly 2 includes a mounting seat 201, a winding seat 202, a limiting seat 203, a connecting seat 204 and a connecting groove 205. The mounting seat 201 is arranged inside the bonding seat 101. A winding seat 202 is arranged on one side of the mounting seat 201. A limiting seat 203 is arranged on one side of the winding seat 202. A connecting seat 204 is arranged on one side of the mounting seat 201. A connecting groove 205 is opened on one side of the mounting seat 201. The winding seat 202 is fixed by the mounting seat 201 to wind a coil. The limiting seat 203 prevents the coil from slipping out of the winding seat 202. Through the sliding connection between the connecting seat 204 and the connecting groove 205, multiple groups of mounting seats 201 are connected, and at the same time, it is convenient to separately take out the mounting seat 201 for replacement. Multiple groups of mounting seats 201 are slidably connected. There is a gap between multiple groups of limiting seats 203. The thickness of the winding seat 202 is less than the width of the limiting seat 203 and the mounting seat 201. The wire is convenient to pass through the limiting seat 203 during winding through the gap between multiple groups of limiting seats 203, and the coil is accommodated through the space formed between multiple groups of winding seats 202.

[0026] Please refer to Figure 4, in this embodiment, the rotor assembly 3 includes permanent magnet blocks 301, fixing grooves 302 and fixing rings 303; a fixing ring 303 is arranged inside the mounting base 201, permanent magnet blocks 301 are arranged outside the fixing ring 303, multiple groups of permanent magnet blocks 301 are provided, and fixing grooves 302 are left between the permanent magnet blocks 301; the permanent magnet blocks 301 are fixed by the fixing ring 303, power is generated through the interaction between the magnetic field of the permanent magnet blocks 301 themselves and the magnetic field generated by the energization of the coil, and the fixing ring 303 is facilitated to be fixed through the fixing grooves 302.

[0027] Please refer to Figure 5 , in this embodiment, the bushing assembly 4 includes a bushing ring 401, a limiting ring 402 and a limiting rod 403; a bushing ring 401 is arranged inside the fixing ring 303, a limiting ring 402 is arranged on one side of the bushing ring 401, and a limiting rod 403 is arranged on one side of the limiting ring 402; the machine shaft is connected through the bushing ring 401, the fixing ring 303 is prevented from sliding out of the bushing ring 401 through the limiting ring 402, and the fixing ring 303 is fixed through the limiting rod 403 located in the fixing groove 302.

[0028] When installing the stator, after winding the coil around the winding base 202, multiple groups of mounting bases 201 are connected through the sliding connection of the connecting seat 204 and the connecting groove 205, the limiting seat 203 prevents the coil from sliding out of the winding base 202, and then the connected mounting bases 201 are placed into the gap between the gluing seat 101 and the limiting plate 102. The limiting plate 102 is located between two groups of mounting bases 201 to prevent the mounting bases 201 from rotating in the gluing seat 101. Finally, after applying glue to the outside of the gluing seat 101, the gluing seat 101 is installed into the machine and glued to the machine;

[0029] When installing the rotor, a suitable bushing ring 401 is selected according to the diameter of the machine shaft. After aligning the fixing groove 302 between the permanent magnet blocks 301 with the limiting rod 403, the fixing ring 303 is sleeved into the bushing ring 401, and the fixing ring 303 is made to abut against the limiting ring 402 to complete the installation.

[0030] Through the above steps, the stator assembly 2 is installed through the installation assembly 1, the rotor assembly 3 is installed through the bushing assembly 4, and the rotor assembly 3 is rotated by the magnetic field generated by the energization of the stator assembly 2 to output power externally.

[0031] The above has described in detail the embodiments of the present invention in conjunction with the drawings, but the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can also be made without departing from the gist of the present invention.

Claims

1. A modularly assembled frameless direct-drive motor, comprising a mounting assembly (1); characterized in that: It also comprises a stator assembly (2), a rotor assembly (3) and a shaft sleeve assembly (4); the stator assembly (2) is arranged on the inner side of the mounting assembly (1), the rotor assembly (3) is arranged on the inner side of the stator assembly (2), and the shaft sleeve assembly (4) is arranged on the inner side of the rotor assembly (3).

2. A modularly assembled frameless direct-drive motor according to claim 1, characterized in that: The mounting assembly (1) comprises a gluing seat (101) and a limiting plate (102); the limiting plate (102) is arranged on the inner side of the gluing seat (101), and a plurality of groups of the limiting plates (102) are arranged.

3. The modularly assembled frameless direct-drive motor according to claim 1, characterized in that: A gap is left between the limiting plate (102) and the gluing seat (101), and gaps are also left between the multiple groups of limiting plates (102).

4. The modularly assembled frameless direct-drive motor according to claim 2, characterized in that: The stator assembly (2) comprises a mounting seat (201), a winding seat (202), a limiting seat (203), a connecting seat (204) and a connecting groove (205); the mounting seat (201) is arranged on the inner side of the gluing seat (101), the winding seat (202) is arranged on one side of the mounting seat (201), the limiting seat (203) is arranged on one side of the winding seat (202), the connecting seat (204) is arranged on one side of the mounting seat (201), and the connecting groove (205) is opened on one side of the mounting seat (201).

5. The modularly assembled frameless direct-drive motor according to claim 4, characterized in that: The plurality of mounting seats (201) are slidably connected to each other, gaps are left between the plurality of limiting seats (203), and the thickness of the winding seat (202) is smaller than the width of the limiting seat (203) and the mounting seat (201).

6. The modularly assembled frameless direct-drive motor according to claim 5, characterized in that: The rotor assembly (3) comprises a permanent magnet block (301), a fixing groove (302) and a fixing ring (303); the fixing ring (303) is arranged on the inner side of the mounting seat (201), the permanent magnet block (301) is arranged on the outer side of the fixing ring (303), a plurality of groups of permanent magnet blocks (301) are arranged, and fixing grooves (302) are left between the permanent magnet blocks (301).

7. The modularly assembled frameless direct-drive motor according to claim 6, characterized in that: The shaft sleeve assembly (4) comprises a shaft sleeve ring (401), a limiting ring (402) and a limiting rod (403); the shaft sleeve ring (401) is arranged on the inner side of the fixing ring (303), the limiting ring (402) is arranged on one side of the shaft sleeve ring (401), and the limiting rod (403) is arranged on one side of the limiting ring (402).

Images