CN216490054U

CN216490054U - Inner rotor two-phase brushless permanent magnet motor

Info

Publication number: CN216490054U
Application number: CN202122695584.7U
Authority: CN
Inventors: 吴凡; 张华�; 石先平; 黄谊菁; 刘剑豪
Original assignee: Nanjing Hegong Power Technology Co ltd
Current assignee: Nanjing Hegong Power Technology Co ltd
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2022-05-10
Anticipated expiration: 2031-11-05

Abstract

The utility model discloses an inner rotor two-phase brushless permanent magnet motor which comprises a shell, wherein a top cover is installed at the upper end of the shell, a resistance reducing limiting mechanism is installed in the middle of the upper end of the top cover, a connecting ring is arranged on the inner side of the resistance reducing limiting mechanism, a main rotating shaft is installed in the center of the connecting ring, the lower end of the main rotating shaft is connected with a rotor end, a stator end is arranged on the outer side of the rotor end, power supply leading-in equipment is connected onto the stator end, a bearing is arranged on the outer side of the shell, and a connecting rod is connected to the outer wall of the bearing. According to the structure, the resistance-reducing limiting mechanism is arranged, so that abrasion reduction treatment can be realized, the large-degree retention of the rotating force of the operating main rotating shaft is ensured, the operating stability of the main rotating shaft is ensured, the use stability of the whole device can be further improved, meanwhile, the second clamping ring and the first clamping ring are matched with each other, the stable rotation of the large balls and the small balls is completed, and the operating efficiency of the whole device is ensured.

Description

Inner rotor two-phase brushless permanent magnet motor

Technical Field

The utility model relates to the technical field of two-phase brushless permanent magnet motors, in particular to an inner rotor two-phase brushless permanent magnet motor.

Background

The two-phase brushless permanent magnet motor is one of the existing motor models, and is applied to the fields of computers, office equipment, fans and the like due to the advantages of simple structure and control electronic circuit, reliable operation, convenient maintenance, low cost and the like; the permanent magnet brushless motor has two types of sine wave drive and square wave drive; the drive current is a rectangular wave, which is generally called a permanent magnet brushless dc motor, the drive current is a sine wave, which is generally called a permanent magnet ac servo motor, and the sensing type can be classified into a sensored motor and a positive sensor motor.

The output power of the rotor end of the existing two-phase brushless permanent magnet motor can be subjected to friction to reduce the output rate, meanwhile, due to the fact that a power supply connecting part exists in the motor, the installation of the whole motor is limited, the installation difficulty of equipment can be increased in the use process, the installation of individual positions cannot be achieved, the equipment matched with the motor needs to be adjusted again, and the use difficulty of the whole device is increased.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to an inner rotor two-phase brushless permanent magnet motor to solve the problems of the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: an inner rotor two-phase brushless permanent magnet motor comprises a casing, a top cover is installed at the upper end of the casing, a resistance reducing limiting mechanism is installed at the middle part of the upper end of the top cover, a connecting ring is arranged on the inner side of the resistance reducing limiting mechanism, a main rotating shaft is installed at the center of the connecting ring, the lower end of the main rotating shaft is connected with a rotor end, a stator end is arranged on the outer side of the rotor end, power supply leading-in equipment is connected onto the stator end, a bearing is arranged on the outer side of the casing, a connecting rod is connected onto the outer wall of the bearing, an installation piece is installed at the lower end of the connecting rod, an installation hole is formed in the installation piece, a first limiting piece is connected to the upper end of the connecting rod, a first through hole is formed in the first limiting piece, a second limiting piece is arranged on the upper side of the first limiting piece, a second through hole is formed in the second limiting piece, a screw rod is arranged in the second through hole, and the screw rod is provided with a nut.

Preferably, drag reduction stop gear includes first joint ring, big ball, second joint ring and little ball, and the outside of first joint ring is provided with big ball to the one end that first joint ring was kept away from to big ball is provided with the second joint ring, be provided with little ball in the second joint ring.

Preferably, the first clamping ring is connected with the connecting ring in a welding mode, and a retainer is installed at the connecting position of the first clamping ring and the large ball.

Preferably, the second clamping ring is of an I-shaped structure, and a retainer is arranged between the second clamping ring and the small balls.

Preferably, the bearing is welded with the casing, the outer wall of the bearing is welded with the connecting rod, and the connecting rod, the mounting piece and the first limiting piece are integrally designed.

Preferably, the first limiting piece and the first through hole are designed integrally, and the first through hole is in through connection with the screw rod.

Preferably, the second limiting pieces are distributed on the top cover in a circular array, the second limiting pieces are connected with the top cover in a welding mode, the second limiting pieces and the second through holes are designed in an integrated mode, and the second through holes are connected with the screw in a penetrating mode.

Compared with the prior art, the utility model has the beneficial effects that:

1. the anti-friction device is simple in structure, abrasion reduction treatment can be achieved by arranging the anti-friction limiting mechanism, the fact that the rotating force of the running main rotating shaft is large is guaranteed to be reserved, the running stability of the main rotating shaft is guaranteed, the use stability of the whole device can be further improved, meanwhile, the second clamping ring and the first clamping ring are matched with each other, the stable rotation of the large balls and the small balls is completed, and the running efficiency of the whole device is guaranteed;

2. according to the utility model, the connecting rod is arranged on the outer wall of the bearing, so that the connecting rod can stably rotate, the connecting rod is ensured not to influence a machine shell when rotating, the mounting flexibility is maintained, the mounting convenience is ensured, meanwhile, the mounting piece and the first limiting piece can assist the whole device to be stably mounted, and the use stability is ensured.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is an overall sectional structural view of the present invention.

Fig. 3 is a schematic view of the connecting rod connection structure of the present invention.

Fig. 4 is a schematic diagram of the internal structure of the housing of the present invention.

Fig. 5 is a schematic structural view of the drag reduction limiting mechanism of the present invention.

In the figure: 1. a housing; 2. a top cover; 3. a drag reduction limiting mechanism; 31. a first snap ring; 32. a large ball; 33. a second snap ring; 34. a small ball; 4. a connecting ring; 5. a main rotating shaft; 6. a rotor end; 7. a stator terminal; 8. a power supply lead-in device; 9. a bearing; 10. a connecting rod; 11. mounting a sheet; 12. mounting holes; 13. a first limiting sheet; 14. a first perforation; 15. a second limiting sheet; 16. a second perforation; 17. a screw; 18. and a nut.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, an embodiment of the present invention is shown: an inner rotor two-phase brushless permanent magnet motor comprises a machine shell 1, wherein a top cover 2 is installed at the upper end of the machine shell 1, a resistance reducing limiting mechanism 3 is installed at the middle part of the upper end of the top cover 2, the resistance reducing limiting mechanism 3 comprises a first clamping ring 31, a large ball 32, a second clamping ring 33 and a small ball 34, the large ball 32 is arranged on the outer side of the first clamping ring 31, the second clamping ring 33 is arranged at one end, far away from the first clamping ring 31, of the large ball 32, the small ball 34 is arranged in the second clamping ring 33, the first clamping ring 31 is connected with a connecting ring 4 in a welding mode, a retainer is installed at the joint of the first clamping ring 31 and the large ball 32, the rolling flexibility of the large ball 32 can be maintained, the first clamping ring 31 and the connecting ring 4 are welded with each other, the use stability of the first clamping ring 31 can be guaranteed, the second snap ring 33 is designed to be of an I-shaped structure, a retainer is arranged between the second snap ring 33 and the small balls 34, and the second snap ring 33 of the I-shaped structure can ensure the stable connection of the inner balls and the outer balls, so that the using effect of the whole second snap ring 33 is improved.

The inboard of drag reduction stop gear 3 is provided with go-between 4, and the center department of go-between 4 installs main pivot 5, the lower extreme of main pivot 5 is connected with rotor end 6, and the outside of rotor end 6 is provided with stator end 7, is connected with power supply leading-in equipment 8 on this stator end 7, the outside of casing 1 is provided with bearing 9, and bearing 9's outer wall connection has connecting rod 10, and bearing 9 is welded connection with casing 1, and bearing 9's outer wall is welded connection with connecting rod 10 to connecting rod 10, installation piece 11 and first spacing piece 13 are the integrated design, establish connecting rod 10, installation piece 11 and the first spacing piece 13 of integrated design and can carry out stable installation to whole motor and handle, improve the stability of installation.

The lower end of the connecting rod 10 is provided with a mounting piece 11, the mounting piece 11 is provided with a mounting hole 12, the upper end of the connecting rod 10 is connected with a first limiting piece 13, the first limiting piece 13 is provided with a first through hole 14, the first limiting piece 13 and the first through hole 14 are designed into an integrated structure, the first through hole 14 is in through connection with a screw 17, the screw 17 can be inserted into the first through hole 14 to realize the fixing treatment of the first limiting piece 13, the upper side of the first limiting piece 13 is provided with a second limiting piece 15, the second limiting piece 15 is provided with a second through hole 16, the screw 17 is arranged in the second through hole 16, the screw 17 is provided with a nut 18, the second limiting pieces 15 are distributed on the top cover 2 in a circular array, the second limiting piece 15 is in welding connection with the top cover 2, the second limiting piece 15 and the second through hole 16 are designed into an integrated structure, and the second through hole 16 is in through connection with the screw 17, the screw 17 can penetrate into the first through hole 14 and the second through hole 16, so that the whole second limiting piece 15 and the first limiting piece 13 are fixed, and the stable installation of the motor is ensured.

The working principle is as follows: when the utility model is used, the utility model needs to be understood by simple structure, firstly, the power supply leading-in device 8 on the machine shell 1 is electrified, then the stator end 7 and the rotor end 6 mutually operate to realize electromagnetic rotation, the rotating rotor end 6 drives the connecting ring 4 on the main rotating shaft 5 to rotate, meanwhile, the resistance-reducing limiting mechanism 3 on the outer side of the connecting ring 4 starts to cooperate with the connecting ring 4 to perform resistance-reducing work in a limiting state, firstly, the first clamping ring 31 cooperates with the large balls 32 to realize a heavy resistance-reducing effect, the generated friction force is reduced again under the cooperation of the small balls 34 and the second clamping ring 33, the impact force between the top cover 2 and the first clamping ring is greatly reduced, oil body is added between the large ball 32 and the small ball 34, so that the transmission of the rotating force of the main rotating shaft 5 to the connecting ring 4 can be maintained to a greater extent, the operation of the whole device is completed, and the whole device is immediately installed;

when the installation, the connecting rod 10 on the bearing 9 needs to slide firstly, the connecting rod 10 is moved to the corresponding position, the first limiting piece 13 and the second limiting piece 15 at the top end of the connecting rod 10 are fixed, the installation position of the connecting rod 10 is guaranteed to be maintained stably, the screw 17 penetrates through the corresponding first through hole 14, then the installation piece 11 on the connecting rod 10 is fixed with the installation position, the bolt fastening processing is carried out, and the installation processing of the whole device is completed at the moment.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. An inner rotor two-phase brushless permanent magnet motor comprises a shell (1), and is characterized in that: the upper end of the casing (1) is provided with the top cover (2), the middle of the upper end of the top cover (2) is provided with the resistance reducing limiting mechanism (3), the inner side of the resistance reducing limiting mechanism (3) is provided with the connecting ring (4), the center of the connecting ring (4) is provided with the main rotating shaft (5), the lower end of the main rotating shaft (5) is connected with the rotor end (6), the outer side of the rotor end (6) is provided with the stator end (7), the stator end (7) is connected with the power supply leading-in equipment (8), the outer side of the casing (1) is provided with the bearing (9), the outer wall of the bearing (9) is connected with the connecting rod (10), the lower end of the connecting rod (10) is provided with the mounting piece (11), the mounting hole (12) is formed in the mounting piece (11), the upper end of the connecting rod (10) is connected with the first limiting piece (13), and the first limiting piece (13) is provided with the first through hole (14), the upper side of the first limiting piece (13) is provided with a second limiting piece (15), a second through hole (16) is formed in the second limiting piece (15), a screw rod (17) is arranged in the second through hole (16), and a nut (18) is arranged on the screw rod (17).

2. An internal rotor two-phase brushless permanent magnet machine according to claim 1, characterized in that: resistance reduction stop gear (3) are including first joint ring (31), big ball (32), second joint ring (33) and little ball (34), and the outside of first joint ring (31) is provided with big ball (32) to the one end that first joint ring (31) was kept away from in big ball (32) is provided with second joint ring (33), be provided with little ball (34) in second joint ring (33).

3. An internal rotor two-phase brushless permanent magnet motor according to claim 2, wherein: the first clamping ring (31) is connected with the connecting ring (4) in a welding mode, and a retainer is installed at the connecting position of the first clamping ring (31) and the large balls (32).

4. An internal rotor two-phase brushless permanent magnet machine according to claim 2, characterized in that: the second clamping ring (33) is of an I-shaped structure, and a retainer is arranged between the second clamping ring (33) and the small balls (34).

5. An internal rotor two-phase brushless permanent magnet machine according to claim 1, characterized in that: bearing (9) and casing (1) are welded connection, and the outer wall and connecting rod (10) of bearing (9) are welded connection to connecting rod (10), installation piece (11) and first spacing piece (13) design as an organic whole.

6. An internal rotor two-phase brushless permanent magnet machine according to claim 1, characterized in that: the first limiting sheet (13) and the first through hole (14) are designed in an integrated mode, and the first through hole (14) is in penetrating connection with the screw (17).

7. An internal rotor two-phase brushless permanent magnet machine according to claim 1, characterized in that: the second limiting pieces (15) are distributed on the top cover (2) in a circular array, the second limiting pieces (15) are connected with the top cover (2) in a welding mode, the second limiting pieces (15) and the second through holes (16) are designed in an integrated mode, and the second through holes (16) are connected with the screw rods (17) in a penetrating mode.