CN218920172U

CN218920172U - Outer rotor mechanism of direct-current gear motor

Info

Publication number: CN218920172U
Application number: CN202222841127.9U
Authority: CN
Inventors: 罗健怡
Original assignee: Guangdong Fangzhan Motor Co ltd
Current assignee: Guangdong Fangzhan Motor Co ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-04-25
Anticipated expiration: 2032-10-26

Abstract

The utility model belongs to the technical field of motors, in particular to an outer rotor mechanism of a direct current gear motor, which comprises a shell, a fixed seat, a rotating shaft and an output shaft, wherein the fixed seat is arranged on the outer wall of one side of the shell, a disc is fixedly connected to the fixed seat, a mounting seat is fixedly connected to one side of the disc, which is far away from the shell, and a limiting ring is fixedly connected to one side of the mounting seat, which is far away from the disc, an electronic element fixing piece is sleeved on the mounting seat, a stator is sleeved on the limiting ring, a rotor is sleeved on the outer side of the stator, a reduction gear set is arranged in an inner cavity of the shell, and the rotating shaft is connected with the output shaft through the reduction gear set; according to the utility model, through adopting the structural design of the outer rotor motor, the motor space is fully utilized, the installation space is greatly saved, meanwhile, the assembly process of parts processing components is simplified, the production efficiency is improved, and the production cost is reduced.

Description

Outer rotor mechanism of direct-current gear motor

Technical Field

The utility model relates to the technical field of motors, in particular to an outer rotor mechanism of a direct-current gear motor.

Background

The direct current gear motor, namely the gear reduction motor, is added with a matched gear reduction box on the basis of a common direct current motor. The direct-current speed reducing motor mainly comprises a speed reducer and a motor, wherein the speed reducer is mainly composed of a gear, a bearing, a worm wheel, a worm and other parts, and the motor is mainly composed of a stator and a rotor; the direct-current gear motor is widely applied to various industries such as steel industry, mechanical industry and the like because of the characteristics of simplified design, low energy consumption, excellent performance and the like.

At present, the existing gear motor adopts an inner rotor mechanism, the motor is large in size, complex in manufacturing process and high in product cost, and the problems of poor pressure resistance, relatively weak safety and the like are easily caused; therefore, an outer rotor mechanism of a direct current gear motor is proposed to solve the above problems.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides an outer rotor mechanism of a direct-current gear motor, which solves the problems that the existing gear motor adopts an inner rotor mechanism, the motor is large in size, complex in manufacturing process and high in product cost, poor in pressure resistance and relatively weak in safety are easily caused.

The technical scheme adopted for solving the technical problems is as follows: the utility model discloses an outer rotor mechanism of a direct current gear motor, which comprises a shell, a fixed seat, a rotating shaft and an output shaft, wherein the fixed seat is arranged on the outer wall of one side of the shell, a disc is fixedly connected to the fixed seat, a mounting seat is fixedly connected to one side of the disc, which is far away from the shell, a limiting ring is fixedly connected to one side of the mounting seat, which is far away from the disc, an electronic element fixing piece is sleeved on the mounting seat, a stator is sleeved on the limiting ring, a rotor is sleeved on the outer side of the stator, a gear reduction set is arranged in an inner cavity of the shell, the rotating shaft is connected with the output shaft through the gear reduction set, one end of the rotating shaft penetrates through the fixed seat and is connected with the rotor, and a bearing piece is arranged between the rotating shaft and the mounting seat and the limiting ring; through adopting the structural design of external rotor motor for the motor space is fully utilized, has greatly saved the installation space, and part processing subassembly assembly process is simplified simultaneously, has improved production efficiency, has reduced manufacturing cost.

Preferably, three supports are fixedly connected to the outer wall of the mounting seat, the three supports are distributed in an annular shape, and a first positioning hole is formed in each support; the three supports are arranged on the mounting seat, so that the electronic element fixing piece can be mounted and fixed, and the phenomenon that the electronic element fixing piece and the disc are rubbed to generate electric leakage can be avoided.

Preferably, the electronic component fixing piece is annular, three second positioning holes are formed in the electronic component fixing piece, the three second positioning holes are distributed in an annular mode, the electronic component fixing piece is attached to the support, and the second positioning holes correspond to the first positioning holes; through the cooperation of three locating hole II that set up on the electronic components mounting and locating hole I on the support, the staff of being convenient for utilizes the screw to fix electronic components mounting on the support fast.

Preferably, the outer diameter of the limiting ring is smaller than that of the mounting seat, and the outer wall of the limiting ring is provided with a limiting bulge and four positioning strips; through be equipped with a spacing arch and four locating strips and stator cooperation on the spacing ring, can prevent effectively that the stator from taking place the skew and then influencing the card sum with the rotor at the motor high-speed operation in-process to produce great noise.

Preferably, the inner wall of the stator is provided with a limit groove and four locating grooves, the depth of each locating groove is smaller than that of each limit groove, each limit groove is adaptive to each limit protrusion, and each locating groove is adaptive to each locating strip; through seting up a spacing groove and four constant head tanks on the inner wall of stator, make things convenient for the quick accurate of staff to fix the rotor cover on the spacing ring, improved the installation steadiness of stator.

Preferably, two bearing parts are arranged, the two bearings are respectively distributed at the ports of the mounting seat and the limiting ring, and the rotor is bonded with NdFeB or plastic-magnetic ferrite; by providing two bearing members, friction between the members can be reduced, so that the rotating shaft can be rotated smoothly.

The utility model has the advantages that:

1. according to the utility model, through adopting the structural design of the outer rotor motor, the motor space is fully utilized, the installation space is greatly saved, meanwhile, the assembly process of parts processing components is simplified, the production efficiency is improved, the production cost is reduced, and the phenomenon that the electric leakage occurs due to friction between an electronic element on the electronic element fixing piece and the inner wall of the fixing seat can be effectively avoided by arranging the disc between the electronic element fixing piece and the fixing seat, so that the motor cannot work normally;

2. according to the utility model, the three supports are arranged on the mounting seat, so that the electronic element fixing piece can be mounted and fixed, the phenomenon that the electronic element fixing piece rubs with the disc to generate electricity leakage can be avoided, the operation of the motor is further influenced, and the limit ring is provided with the limit bulge and the four locating strips to be matched with the stator, so that the stator can be effectively prevented from being deviated in the high-speed operation process of the motor, the clamping with the rotor is further influenced, larger noise is generated, the abrasion condition is avoided, and the service life of the motor is further influenced.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic overall structure of a first embodiment;

FIG. 2 is a schematic diagram of a reduction gear set according to the first embodiment;

FIG. 3 is a schematic view of a part of the first embodiment;

FIG. 4 is a schematic structural diagram of a stator according to the first embodiment;

FIG. 5 is a schematic view of a structure of a mounting seat and a limiting ring according to the first embodiment;

fig. 6 is a schematic partial structure of the second embodiment.

In the figure: 1. a housing; 2. a fixing seat; 3. a rotating shaft; 4. a reduction gear set; 5. an output shaft; 6. a rotor; 7. a mounting base; 8. a limiting ring; 9. a disc; 10. an electronic component fixing member; 11. a stator; 12. a bearing member; 13. a limit groove; 14. a positioning groove; 15. a limit protrusion; 16. a positioning strip; 17. a support; 18. positioning holes I; 19. positioning holes II; 20. and a neodymium iron boron magnetic ring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-5, an outer rotor mechanism of a direct current gear motor comprises a shell 1, a fixed seat 2, a rotating shaft 3 and an output shaft 5, wherein the fixed seat 2 is installed on the outer wall of one side of the shell 1, a disc 9 is fixedly connected to the fixed seat 2, an installation seat 7 is fixedly connected to one side of the disc 9, which is away from the shell 1, a limiting ring 8 is fixedly connected to one side of the installation seat 7, which is away from the disc 9, an electronic component fixing part 10 is sleeved on the installation seat 7, a stator 11 is sleeved on the limiting ring 8, a rotor 6 is sleeved on the outer side of the stator 11, a reduction gear set 4 is installed in an inner cavity of the shell 1, the rotating shaft 3 is connected with the output shaft 5 through the reduction gear set 4, one end of the rotating shaft 3 penetrates through the fixed seat 2 to be connected with the rotor 6, and a bearing part 12 is arranged between the rotating shaft 3 and the installation seat 7 and the limiting ring 8; when the electronic component fixing part 10 is electrified, the stator 11 generates a rotating magnetic field, at the moment, the rotor 6 is cut by magnetic lines of force in the rotating magnetic field to generate output current, the motor space is fully utilized by adopting the structural design of the motor of the outer rotor 6, the installation space is greatly saved, meanwhile, the assembly process of parts processing components is simplified, the production efficiency is improved, the production cost is reduced, and the phenomenon that the electronic component on the electronic component fixing part 10 is in electric leakage due to friction with the inner wall of the fixed seat 2 can be effectively avoided by arranging the disc 9 between the electronic component fixing part 10 and the fixed seat 2, so that the motor cannot work normally.

Three supports 17 are fixedly connected to the outer wall of the mounting seat 7, the three supports 17 are distributed in a ring shape, and a first positioning hole 18 is formed in each support 17; during operation, through being equipped with three support 17 on mount pad 7, can enough install fixedly electron unit ware mounting 10, can avoid electron unit ware mounting 10 and disc 9 to take place the friction and appear leaking the electric phenomenon again, and then influence the operation of motor.

The electronic element fixing piece 10 is annular, three second positioning holes 19 are formed in the electronic element fixing piece 10, the three second positioning holes 19 are distributed in an annular mode, the electronic element fixing piece 10 is attached to the support 17, and the second positioning holes 19 correspond to the first positioning holes 18; during operation, through the cooperation of the three locating holes two 19 that have seted up on electronic component ware mounting 10 and the locating hole one 18 on the support 17, the staff of being convenient for utilizes the screw to fix electronic component ware mounting 10 on support 17 fast, simple structure, the installation of being convenient for.

The outer diameter of the limiting ring 8 is smaller than that of the mounting seat 7, and a limiting bulge 15 and four positioning strips 16 are arranged on the outer wall of the limiting ring 8; during operation, through being equipped with a spacing arch 15 and four locating strips 16 and stator 11 cooperation on spacing ring 8, can prevent effectively that stator 11 from taking place the skew and then influencing the card with rotor 6 in the high-speed operation in-process of motor to produce great noise, avoid appearing wearing and tearing situation simultaneously, influence the life of motor.

A limit groove 13 and four positioning grooves 14 are formed in the inner wall of the stator 11, the depth of each positioning groove 14 is smaller than that of each limit groove 13, each limit groove 13 is adaptive to each limit protrusion 15, and each positioning groove 14 is adaptive to each positioning strip 16; during operation, through set up a spacing groove 13 and four constant head tanks 14 on stator 11's inner wall, make things convenient for the quick accurate of staff to fix rotor 6 cover on spacing ring 8, improved stator 11's installation steadiness.

Two bearing parts 12 are arranged, the two bearings are respectively distributed at the ports of the mounting seat 7 and the limiting ring 8, and the rotor 6 is bonded with NdFeB or plastic-magnetic ferrite; during operation, friction between parts can be reduced by arranging the two bearing parts 12, so that the rotating shaft 3 can rotate stably, and the two bearing parts 12 are arranged in the same side direction of the fixed seat 2, so that the structure is more compact, and the structure space of the motor is saved.

Example two

Referring to fig. 6, in a first comparative example, as another embodiment of the present utility model, the rotor 6 may be a neodymium-iron-boron magnetic ring 20, and the neodymium-iron-boron magnetic ring 20 is a neodymium-iron-boron member; during operation, the rotor 6 made of ferrite is replaced by the neodymium iron boron magnetic ring 20, so that a magnetic field which is more efficient than that of the ferrite rotor 6 can be generated between the neodymium iron boron magnetic ring 20 and the stator 11, the rotating speed of the rotating shaft 3 and the rotating speed of the output shaft 5 are improved, and the efficiency of the motor is further improved.

During assembly, a worker only needs to sequentially fix the bearing part 12, the disc 9, the mounting seat 7, the limiting ring 8, the electronic component fixing part 10, the stator 11 and the rotor 6 on the rotating shaft 3 and the fixing seat 2, the first positioning hole 18 on the support 17 corresponds to the second positioning hole 19 on the electronic component fixing part 10, the worker can conveniently fix the electronic component fixing part 10 on the support 17 by using screws, the stator 11 is not contacted with the electronic component fixing part 10 by using the stepped design of the mounting seat 7 and the limiting ring 8, one limiting groove 13 and four positioning grooves 14 arranged on the limiting ring 8 are matched with one limiting boss 15 and four positioning strips 16 on the stator 11, the stator 11 is conveniently and rapidly and accurately sleeved on the limiting ring 8 to be fixed, when the electronic component fixing part 10 is electrified, the stator 11 generates a rotating magnetic field, and the rotor 6 is cut by magnetic lines in the rotating magnetic field to generate output current, and the motor space is fully utilized by using an outer rotor 6 motor through the structural design of the outer rotor 6, meanwhile, the assembly cost is reduced, the production cost is greatly reduced, and the assembly cost is reduced.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims

1. An external rotor mechanism of a direct current gear motor is characterized in that: including shell (1), fixing base (2), axis of rotation (3) and output shaft (5), install fixing base (2) on the outer wall of one side of shell (1), fixedly connected with disc (9) on fixing base (2), one side rigid coupling that deviates from shell (1) of disc (9) has mount pad (7), one side rigid coupling that deviates from disc (9) of mount pad (7) has spacing ring (8), the cover has electronic component ware mounting (10) on mount pad (7), the cover has stator (11) on spacing ring (8), the outside cover of stator (11) has rotor (6), reduction gear group (4) are installed to the inner chamber of shell (1), axis of rotation (3) are connected through reduction gear group (4) with output shaft (5), one end of axis of rotation (3) runs through fixing base (2) and is connected with rotor (6), be equipped with bearing piece (12) between axis of rotation (3) and mount pad (7) and the spacing ring (8).

2. An outer rotor (6) mechanism of a direct current gear motor according to claim 1, characterized in that: three supports (17) are fixedly connected to the outer wall of the mounting seat (7), the three supports (17) are distributed in a ring shape, and a first positioning hole (18) is formed in the support (17).

3. An outer rotor (6) mechanism of a direct current gear motor according to claim 2, characterized in that: the electronic element device fixing piece (10) is annular, three second positioning holes (19) are formed in the electronic element device fixing piece (10), the three second positioning holes (19) are distributed in an annular mode, the electronic element device fixing piece (10) is attached to the support (17), and the second positioning holes (19) correspond to the first positioning holes (18).

4. An outer rotor (6) mechanism of a direct current gear motor according to claim 3, characterized in that: the outer diameter of the limiting ring (8) is smaller than that of the mounting seat (7), and a limiting bulge (15) and four positioning strips (16) are arranged on the outer wall of the limiting ring (8).

5. An outer rotor (6) mechanism for a direct current reduction motor according to claim 4, characterized in that: a limit groove (13) and four locating grooves (14) are formed in the inner wall of the stator (11), the depth of each locating groove (14) is smaller than that of each limit groove (13), each limit groove (13) is adaptive to each limit protrusion (15), and each locating groove (14) is adaptive to each locating strip (16).

6. An outer rotor (6) mechanism for a direct current reduction motor according to claim 5, characterized in that: the number of the bearing parts (12) is two, the two bearings are respectively distributed at the ports of the mounting seat (7) and the limiting ring (8), and the rotor (6) is bonded with NdFeB or plastic magnetic ferrite.