CN110868019A

CN110868019A - Air-cooled outer rotor permanent magnet direct-drive synchronous belt transmission roller motor

Info

Publication number: CN110868019A
Application number: CN201911267074.0A
Authority: CN
Inventors: 罗贵波; 韩宏; 马银波
Original assignee: Wuhan Maddie Jia Mechanical And Electrical Technology Co Ltd
Current assignee: Wuhan Maddie Jia Mechanical And Electrical Technology Co Ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-03-06
Anticipated expiration: 2039-12-11
Also published as: CN110868019B

Abstract

The invention relates to the technical field of motors, and discloses an air-cooled outer rotor permanent magnet direct-drive synchronous belt transmission roller motor, which solves the problems that the existing permanent magnet direct-drive motor is large in size, limited by field space, not easy to install when being connected with a belt roller, and the outer rotor permanent magnet synchronous motor is cooled by water and oil, has complex process and is easy to leak water or oil to cause motor damage; through air inlet fan and exhaust fan cooperation for wind can be through inside the heat of taking out of whole motor, and this kind of forced air cooling structure makes the motor reliability high, and stability is good, and the mechanism is simple and maintain the convenience.

Description

Air-cooled outer rotor permanent magnet direct-drive synchronous belt transmission roller motor

Technical Field

The invention belongs to the technical field of motors, and particularly relates to an air-cooled outer rotor permanent magnet direct-drive synchronous belt transmission roller motor.

Background

In order to reduce a speed reducer between a motor and belt conveying equipment, the existing permanent magnet direct-drive synchronous motor is widely used, but the permanent magnet direct-drive motor is large in size, limited by site space and not easy to install in connection with a belt roller, and in order to solve the problems, the existing outer rotor permanent magnet synchronous motor replaces the permanent magnet direct-drive synchronous motor, the belt roller is directly replaced by the motor to drive the belt, but the existing outer rotor permanent magnet synchronous motor is cooled by adopting water and oil, the water or the oil flows through the motor through an external cooling circulating pump through a pipeline to take away the temperature of the motor, the process is complex, water leakage or oil damage is easy to cause, and therefore, the air-cooled outer rotor permanent magnet direct-drive synchronous belt conveying roller motor needs to be designed.

Disclosure of Invention

Aiming at the situation and overcoming the defects of the prior art, the invention provides the air-cooled outer rotor permanent magnet direct-drive synchronous belt transmission roller motor, which effectively solves the problems that the existing permanent magnet direct-drive motor is large in size, limited by field space, not easy to install when being connected with a belt roller, and the outer rotor permanent magnet synchronous motor adopts water and oil for cooling, has complex process and is easy to leak water or cause motor damage due to oil.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an air-cooled external rotor permanent magnetism directly drives synchronous belt transmission cylinder motor, includes the motor shaft, the outside cover of motor shaft is equipped with stator support, and stator support external connection has the stator, and stator external connection has the rotor, and the rotor both ends are all connected with the motor end cover through the mounting, and the motor end cover passes through the bearing and installs in the motor shaft upper end, and the ventilation hole has been seted up to the motor shaft inner wall, and ventilation hole one side is connected with the aviation baffle for the motor shaft inner wall, and motor shaft one end is connected with.

Preferably, the motor shaft is hollow.

Preferably, one end of the motor end cover is connected with a belt roller.

Preferably, the air deflectors are arranged in a staggered mode.

Preferably, the stator outer ring is provided with a wire slot, and a stator coil is wound in the wire slot.

Preferably, the rotor comprises a rotor core and a permanent magnet, and the inner circular surface of the rotor core is fixedly connected with the permanent magnet.

Preferably, the bearing is a double-row self-aligning roller bearing.

Preferably, one end of each of the air inlet fan and the exhaust fan is connected with a junction box.

Preferably, the fixing piece is fixedly connected with the motor end cover through a screw.

Preferably, a connecting hole is formed in the side end of the motor end cover opposite to the screw connecting position, and a sinking groove is formed in one end of the connecting hole.

Compared with the prior art, the invention has the beneficial effects that:

(1) compared with the traditional structure, the motor structure provided by the invention has the advantages that the speed reducing device driven by belt transmission is omitted by arranging the motor shaft, the stator bracket, the stator, the rotor, the fixing piece and the motor end cover, and the motor is directly used as a roller, so that the motor efficiency is improved, and the equipment maintenance is reduced;

(2) the air cooling structure has the advantages that the motor is high in reliability, good in stability, simple in mechanism and convenient to maintain;

(3) the motor adopts a multi-pole design, the frequency converter is adjusted, the usability is flexible, the protectiveness is strong, and meanwhile, the integral structure is small in size, light in weight, low in noise and temperature rise during operation, wide in adaptive environment and long in service life.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of an installation structure of the air deflector of the present invention;

FIG. 3 is an enlarged schematic view of A of FIG. 1 according to the present invention;

in the figure: 1. a motor shaft; 2. a stator support; 3. a stator; 4. a rotor; 5. a fixing member; 6. a motor end cover; 7. a bearing; 8. a vent hole; 9. an air deflector; 10. an air inlet machine; 11. an exhaust fan; 12. a junction box; 13. and (4) screws.

Detailed Description

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.

In the first embodiment, as shown in fig. 1, 2, and 3, the invention includes a motor shaft 1, a stator support 2 is sleeved outside the motor shaft 1, the stator support 2 is connected to the stator 3, the stator 3 is connected to the rotor 4, both ends of the rotor 4 are connected to a motor end cover 6 through fixing members 5, the motor end cover 6 is mounted at the upper end of the motor shaft 1 through a bearing 7, a vent hole 8 is formed in the inner wall of the motor shaft 1, so that wind blows out from the vent hole 8 to take away heat, a wind deflector 9 is connected to one side of the vent hole 8 opposite to the inner wall of the motor shaft 1 for uniformly dispersing wind, an air inlet fan 10 is connected to one end of the motor shaft 1, an exhaust fan 11 is connected to the other end of the motor shaft 1, wind is blown in through the.

In the second embodiment, on the basis of the first embodiment, the inside of the motor shaft 1 is hollow, so that wind power heat dissipation is facilitated.

In the third embodiment, on the basis of the first embodiment, one end of the motor end cover 6 is connected with a belt roller, and a speed reduction device driven by belt transmission is omitted, so that the motor efficiency is improved.

In the fourth embodiment, on the basis of the first embodiment, the air deflectors 9 are arranged in a staggered manner, so that the blown wind power is dispersed conveniently, and the heat dissipation capability is improved.

Fifth, on the basis of the first embodiment, the outer ring of the stator 3 is provided with a wire slot, and a stator coil is wound inside the wire slot, so that the stator coil is conveniently wound.

Sixth embodiment, on the basis of first embodiment, rotor 4 includes rotor core and permanent magnet, and rotor core inner circle face fixedly connected with permanent magnet makes things convenient for rotor 4 installation support rotatory.

Seventh embodiment, on the basis of the first embodiment, the bearing 7 is a double-row self-aligning roller bearing, which is convenient to adapt to the relative deflection of the motor shaft 1, and can bear radial heavy load and impact load, and also can bear a certain bidirectional axial load.

Eighth embodiment, on the basis of first embodiment, air inlet fan 10 and exhaust fan 11 one end all are connected with terminal box 12, make things convenient for to air inlet fan 10 and exhaust fan 11 electric connection.

Ninth, on the basis of the first embodiment, the fixing member 5 is fixedly connected with the motor end cover 6 through the screw 13, so that the motor end cover 6 is conveniently connected with the fixing member 5.

Tenth embodiment, on the basis of ninth embodiment, motor end cover 6 side has seted up the connecting hole for screw 13 junction, and heavy groove has been seted up to connecting hole one end, conveniently places screw 13 head in the heavy groove, avoids protruding.

The working principle is as follows: during installation, firstly, the stator support 2 is fixed on the motor shaft 1, the stator 3 is embedded on the stator support 2, the inner circle of the stator 3 is matched and fixed with the stator support 2, the outer circle of the stator 3 is grooved and embedded with the stator coil, then the rotor 4 is installed outside the stator 3, through the corresponding clearance fit of the inner circle surface of the permanent magnet and the outer circle surface of the stator 3, two ends of the rotor 4 are respectively combined with the motor end cover 6 through the fixing piece 5, the motor end cover 6 is respectively installed on the motor shaft 1 through the corresponding belt roller and the bearing 7 which are fixedly combined with the motor end cover, then the two sides are respectively installed into the fan 10 and the exhaust fan 11, the motor outer rotor 4 drives the motor end cover 6 to drive the belt roller during motor driving, a speed reducer driven by belt transmission is subtracted, the motor directly serves as the.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

Claims

1. The utility model provides an air-cooled external rotor permanent magnetism directly drives synchronous belt transmission cylinder motor, includes motor shaft (1), its characterized in that: the motor shaft (1) outside cover is equipped with stator support (2), stator support (2) external connection has stator (3), stator (3) external connection has rotor (4), rotor (4) both ends all are connected with motor end cover (6) through mounting (5), motor end cover (6) are installed in motor shaft (1) upper end through bearing (7), ventilation hole (8) have been seted up to motor shaft (1) inner wall, ventilation hole (8) one side is connected with aviation baffle (9) for motor shaft (1) inner wall, motor shaft (1) one end is connected with air inlet machine (10), the motor shaft (1) other end is connected with exhaust fan (11).

2. The air-cooled outer rotor permanent magnet direct drive synchronous belt transmission drum motor as claimed in claim 1, wherein: the motor shaft (1) is hollow.

3. The air-cooled outer rotor permanent magnet direct drive synchronous belt transmission drum motor as claimed in claim 1, wherein: one end of the motor end cover (6) is connected with a belt roller.

4. The air-cooled outer rotor permanent magnet direct drive synchronous belt transmission drum motor as claimed in claim 1, wherein: the air deflectors (9) are arranged in a staggered mode.

5. The air-cooled outer rotor permanent magnet direct drive synchronous belt transmission drum motor as claimed in claim 1, wherein: the stator (3) outer ring is provided with a wire slot, and a stator coil is wound in the wire slot.

6. The air-cooled outer rotor permanent magnet direct drive synchronous belt transmission drum motor as claimed in claim 1, wherein: the rotor (4) comprises a rotor iron core and a permanent magnet, and the inner circular surface of the rotor iron core is fixedly connected with the permanent magnet.

7. The air-cooled outer rotor permanent magnet direct drive synchronous belt transmission drum motor as claimed in claim 1, wherein: the bearing (7) is a double-row self-aligning roller bearing.

8. The air-cooled outer rotor permanent magnet direct drive synchronous belt transmission drum motor as claimed in claim 1, wherein: and one ends of the air inlet fan (10) and the exhaust fan (11) are both connected with a junction box (12).

9. The air-cooled outer rotor permanent magnet direct drive synchronous belt transmission drum motor as claimed in claim 1, wherein: the fixing piece (5) is fixedly connected with the motor end cover (6) through a screw (13).

10. The air-cooled outer rotor permanent magnet direct drive synchronous belt transmission drum motor as claimed in claim 9, wherein: the side end of the motor end cover (6) is provided with a connecting hole relative to the joint of the screw (13), and one end of the connecting hole is provided with a sink groove.