CN211151786U

CN211151786U - Magnetic suspension linear motor

Info

Publication number: CN211151786U
Application number: CN202020088026.7U
Authority: CN
Inventors: 肖祖荣
Original assignee: Dongguan Digital Electronic Technology Co ltd
Current assignee: Dongguan Digital Electronic Technology Co ltd
Priority date: 2020-01-15
Filing date: 2020-01-15
Publication date: 2020-07-31
Anticipated expiration: 2030-01-15

Abstract

The utility model discloses a magnetic suspension linear electric motor, include: a housing having a cavity formed therein; the coil is arranged in the shell through the coil framework; an output shaft, on which a magnetizer is sleeved; after the coil is electrified in the forward direction or the reverse direction, the output shaft is driven to extend out or extend into the coil through the magnetizer; and a buffer device is arranged on the output shaft in the shell. The utility model is provided with the magnetizer in the coil frame, and the magnetizer drives the output shaft to do telescopic motion by the electromagnetic induction principle between the magnetizer and the electrified coil, and the output shaft can not be in direct contact with other parts when linearly telescopic, thereby reducing friction; the utility model discloses a buffer can adopt moving magnet, and moving magnet is that the output shaft is located to the movable sleeve, through the principle that like poles repel each other between moving magnet and the corresponding magnet, plays the cushioning effect.

Description

Magnetic suspension linear motor

Technical Field

The utility model relates to the technical field of motors, more specifically the utility model relates to a magnetic suspension linear electric motor that says so.

Background

The motor is an electromagnetic device which converts or transmits electric energy according to the law of electromagnetic induction, or converts one form of electric energy into another form of electric energy. The electric motor converts electric energy into mechanical energy (commonly called as a motor), and the generator converts mechanical energy into electric energy.

The motor that is concertina movement among the prior art generally carries out spacing buffering through the silica gel piece, and easy deformation damages to the noise is big, and the plastic part skeleton of being connected between coil and the magnet is used for a long time and can be out of shape, influences product life.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a magnetic suspension linear electric motor.

In order to achieve the above purpose, the utility model adopts the following technical scheme: magnetic levitation linear motor comprising:

a housing having a cavity formed therein;

the coil is arranged in the shell through the coil framework;

an output shaft, on which a magnetizer is sleeved;

after the coil is electrified in the forward direction or the reverse direction, the output shaft is driven to extend out or extend into the coil through the magnetizer;

and a buffer device is arranged on the output shaft in the shell.

In a preferred technical solution, the magnetizer includes: the iron core is arranged between the first magnet and the second magnet, and the polarities of the surfaces of the first magnet and the second magnet, which are contacted with the iron core, are opposite.

In a preferred technical solution, the buffer device is a moving magnet, and the moving magnet includes: the first moving magnet is arranged on the output shaft and corresponds to the first magnet, and the polarities of the first moving magnet and the second moving magnet are the same; the second moving magnet is arranged on the output shaft and corresponds to the second magnet, and the polarities of the second moving magnet and the second magnet are the same.

In a preferred technical scheme, the magnetizer is positioned between the first moving magnet and the second moving magnet.

In a preferable technical scheme, the surface of the shell is coated with a waterproof sealing layer.

In a preferred technical scheme, the coil framework is arranged in a hollow penetrating manner.

In the preferred technical scheme, the coil is sleeved outside the coil framework; the coils are provided with a plurality of groups, and each group of coils are separated from each other on the coil framework through a partition plate.

In the preferred technical scheme, one end of the output shaft penetrates out of the shell, a through hole is correspondingly formed in the shell, and a bearing is arranged in the through hole.

In a preferred technical solution, the housing includes: the cover body and install the back lid on the cover body.

In the preferred technical scheme, one end of the sleeve body is of an open structure, an opening is formed, and the rear cover is arranged at the opening.

Known through foretell technical scheme, compare with prior art, the utility model discloses following beneficial effect has:

1. the utility model is provided with the magnetizer in the coil frame, and the magnetizer drives the output shaft to do telescopic motion by the electromagnetic induction principle between the magnetizer and the electrified coil, and the output shaft can not be in direct contact with other parts when linearly telescopic, thereby reducing friction;

2. the coil framework adopts non-plastic parts, so that the performance of the product is stable, and the service life of the product is prolonged;

3. the utility model is provided with the buffer device on the output shaft, which can play a buffer role while the output shaft is in telescopic operation and has a noise reduction function;

4. the utility model discloses a buffer can adopt moving magnet, and moving magnet is that the output shaft is located to the movable sleeve, through the principle that like poles repel each other between moving magnet and the corresponding magnet, plays the cushioning effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

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

FIG. 2 is a schematic view of the present invention in an exploded state;

fig. 3 is a schematic sectional view of the present invention.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

In the description of the present application, it is to be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present application. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

A magnetic levitation linear motor, as shown in fig. 1-3, comprising: the motor comprises a shell 100, a coil 200 arranged in the shell 100, an output shaft 300 and a magnetizer 400.

Coil 200 install in casing 100 through a coil skeleton 210, coil skeleton 210 cavity link up the setting, coil 200 cover locate outside coil skeleton 210, and magnetizer 400 installs in coil skeleton 210's cavity department, magnetizer 400 fixed mounting on output shaft 300, and the one end of output shaft 300 stretches out shell 100.

The magnetizer 400 linearly reciprocates in the casing 100 according to the electromagnetic induction principle, and drives the output shaft 300 to move, thereby realizing the telescopic operation of the output shaft 300.

In the first embodiment of the magnetizer 400, the magnetizer 400 is a strong magnet, and according to the electromagnetic induction principle, the strong magnet forms a stable magnetic field in the casing 100, and when the coil 200 is energized in the forward direction, a second magnetic field is formed, and the magnetic field formed by the coil 200 and the magnetic field of the strong magnet are superposed in the same direction to drive the magnetizer 400 to move linearly in the forward direction;

when the coil 200 is energized reversely, the second magnetic field formed is opposite to the magnetic field of the strong magnet, so that the magnetizer 400 is driven to move linearly in the reverse direction;

thus, when the magnetizer 400 is fixedly installed on the output shaft 300, the movement of the output shaft 300 is driven by the movement of the magnetizer 400.

In the second embodiment of the magnetic conductor 400, the magnetic conductor 400 includes: the magnetic core 410 and the first and

second magnets

420 and 420 coaxially arranged with the magnetic core 410, wherein the magnetic core 410 is disposed between the first and

second magnets

420 and 430, and the polarities of the surfaces of the first and

second magnets

420 and 420 contacting the magnetic core 410 are opposite.

According to the electromagnetic induction principle, the magnetizer 400 forms a stable magnetic field in the casing 100, the direction of the magnetic field is shown in fig. 2 and fig. 3, the direction of the magnetic field is S → N from bottom to top, when the coil 200 is energized in the forward direction, a second magnetic field is formed, the magnetic field formed by the coil 200 and the magnetic field of the magnetizer 400 are superposed in the same direction, and the magnetizer 400 is driven to move linearly in the forward direction;

when the coil 200 is energized reversely, the formed second magnetic field is opposite to the magnetic field of the magnetizer 400, so that the magnetizer 400 is driven to move linearly in the reverse direction;

The utility model discloses in when making output shaft 300 do the stretching movement through means commonly used setting, be superimposed mutually between the magnetic field of magnetizer 400 and the produced magnetic field of circular telegram coil 200 for the impact force is bigger when the output shaft stretches out.

In a further embodiment, a buffer device 500 is disposed in the housing 100.

In a first embodiment of the damper device 500, the damper device 500 is a moving magnet, and the moving magnet includes: a first moving magnet 510 and a second moving magnet 520, and a magnetic conductor 400 is located between the first moving magnet 510 and the second moving magnet 520.

The first moving magnet 510 is mounted on the output shaft 300 corresponding to the first magnet 420, and the polarities thereof are the same; the second moving magnet 520 is mounted on the output shaft 300 to correspond to the second magnet 430, and the polarities thereof are the same.

As shown in fig. 2, from top to bottom: a first moving magnet 510, a first magnet 420, an iron core 410, a second magnet 430, and a second moving magnet 520.

Then, when the output shaft 300 is running, in the process that the output shaft 300 extends out, the first magnet 420 approaches to the first moving magnet 510, and due to the same polarity, a repulsive force is generated between the two, so that the limiting and buffering effects can be achieved;

in the process of the extension and reset of the output shaft 300, the second magnet 430 approaches to the second moving magnet 520, and due to the same polarity, a repulsive force is generated between the two magnets, so that the limiting and buffering effects can be achieved;

then, in the process of extending and retracting of the output shaft 300, the principle that like poles repel and opposite poles attract among the magnets can be used for achieving good limiting and buffering effects, buffering is achieved through magnetic force, impact force is larger, and other connecting parts have noise reduction effects to a certain extent.

In the second embodiment of the damping device 500, the damping device 500 is a spring, and a first spring is arranged between the first magnet 420 and the inner wall of the first end of the housing 100; a second spring is arranged between the second magnet 430 and the inner wall of the second end of the housing 100, so that the output shaft 300 is buffered by the first spring during the extending process, and the output shaft 300 is buffered by the second spring during the extending process.

The buffering device 500 in the product structure of the present invention is preferably the first embodiment.

In a further technical solution, the housing 100 includes: a sheath 110 and a rear cover 120.

The housing 110 has a cavity formed therein for assembling the output shaft 300 and the magnet assembly 400, and one end of the housing 110 has an open structure formed with an opening for facilitating the assembly of the magnet assembly 400, the coil 200 and the coil bobbin 210, and the rear cover 120 is installed at the opening.

The surface of the shell 100 is coated with a waterproof sealing layer, so that a waterproof effect can be effectively achieved.

One end of the output shaft 300 penetrates through the housing 100, a through hole is correspondingly formed in the housing 100, and the bearing 130 is arranged in the through hole, so that friction can be effectively reduced.

In a further technical scheme, the coil framework 210 is made of non-plastic materials, so that the performance of the product is stable, and the service life of the product can be prolonged

The bobbin 210 is disposed to penetrate through the hollow. The coil 200 is sleeved outside the coil framework 210; the coils 200 are provided in a plurality of groups, and each group of coils 200 is separated from each other by a partition 211 on the bobbin 210.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Magnetic suspension linear electric motor, its characterized in that: the method comprises the following steps:

a housing having a cavity formed therein;

the coil is arranged in the shell through the coil framework;

an output shaft, on which a magnetizer is sleeved;

after the coil is electrified in the forward direction or the reverse direction, the output shaft is driven to extend out or extend into the coil through the magnetizer; and a buffer device is arranged on the output shaft in the shell.

2. The magnetically levitated linear motor of claim 1, wherein: the magnetizer comprises: the iron core is arranged between the first magnet and the second magnet, and the polarities of the surfaces of the first magnet and the second magnet, which are contacted with the iron core, are opposite.

3. The magnetically levitated linear motor of claim 2, wherein: buffer be the moving magnet, the moving magnet includes: the first moving magnet is arranged on the output shaft and corresponds to the first magnet, and the polarities of the first moving magnet and the second moving magnet are the same;

the second moving magnet is arranged on the output shaft and corresponds to the second magnet, and the polarities of the second moving magnet and the second magnet are the same.

4. A magnetically suspended linear motor as claimed in claim 3, wherein: the magnetizer is positioned between the first moving magnet and the second moving magnet.

5. The magnetically levitated linear motor of claim 1, wherein: the surface of the shell is coated with a waterproof sealing layer.

6. The magnetically levitated linear motor of claim 1, wherein: the coil framework is arranged in a hollow and through mode.

7. The magnetically levitated linear motor of claim 6, wherein: the coil is sleeved outside the coil framework; the coils are provided with a plurality of groups, and each group of coils are separated from each other on the coil framework through a partition plate.

8. The magnetically levitated linear motor of claim 1, wherein: one end of the output shaft penetrates out of the shell, a through hole is correspondingly formed in the shell, and a bearing is arranged in the through hole.

9. The magnetically levitated linear motor of claim 1, wherein: the housing includes: the cover body and install the back lid on the cover body.

10. The magnetically levitated linear motor of claim 9, wherein: one end of the sleeve body is of an open structure, an opening is formed, and the rear cover is arranged at the opening.