CN204271877U - A kind of linear electric motors - Google Patents
A kind of linear electric motors Download PDFInfo
- Publication number
- CN204271877U CN204271877U CN201420781594.XU CN201420781594U CN204271877U CN 204271877 U CN204271877 U CN 204271877U CN 201420781594 U CN201420781594 U CN 201420781594U CN 204271877 U CN204271877 U CN 204271877U
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- permanent magnet
- mover
- electric motors
- axis
- linear electric
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Abstract
The utility model discloses a kind of linear electric motors, comprise mover, stator and pedestal, mover and stator are arranged on pedestal; Mover is provided with the built-in permanent magnet that at least one pair of is arranged pole; Stator and/or pedestal are also provided with at least one pair of external permanent magnet arranged pole; Further, a pair built-in permanent magnet and a pair external permanent magnet is had at least to be formed magnetic spring in the mode of magnetic force mutual exclusion.This structure of the linear motion actuator is simply compact, and mover reciprocating motion is highly sensitive, long service life, and control precision is high.
Description
Technical field
The utility model relates to electric motors, is specifically related to a kind of linear electric motors.
Background technology
Straight reciprocating motion is the common a kind of motion mode of utility machine, and at present, a lot of mechanical straight reciprocating motion still comes circumference converting rotary motion to be in line reciprocating motion by driving a set crank link structure with electric rotating machine; This needs additional a set of mechanical component between load machinery and electric rotating machine movement output end, and this crank connecting link additional mechanism providing additional operation not only can increase structural complexity, the production cost of plant equipment, and there is negative effect to environmental pollutions such as the vibration noises that its economy run and mechanical movement produce; The straight reciprocating motion also had adopts electric rotating machine to be that rectilinear motion realizes through Timing Belt, reduction gearing and ball-screw by convert rotational motion, this technology is owing to there being complicated intermediate transmission mechanism, there is intermittence error, make the control precision of this motor limited, reciprocating speed slows down, motor wearing and tearing and noise large, some linear electric motors due to mechanical spring with the use of, make it there is reciprocating motion sensitivity poor, longevity, during motion, housing construction vibrates the shortcomings such as larger.
Utility model content
The purpose of this utility model is to provide a kind of linear electric motors, and it exists complex structure, control precision is low and easily occur the problems such as error owing to adopting complicated intermediate transmission mechanism to cause to solve existing linear electric motors.
To achieve the above object of the invention, an embodiment of the present utility model is to provide a kind of linear electric motors, and comprise mover, stator and pedestal, mover and stator are arranged on pedestal; Mover is provided with the built-in permanent magnet that at least one pair of is arranged pole; Stator and/or pedestal are also provided with at least one pair of external permanent magnet arranged pole; Further, a pair built-in permanent magnet and a pair external permanent magnet is had at least to be formed magnetic spring in the mode of magnetic force mutual exclusion.
According to an embodiment of the application, mover also comprises kinematic axis and is arranged on the magnetic conduction sleeve pipe on kinematic axis; On the axis that built-in permanent magnet is arranged on kinematic axis or the nearly week of axis, pole is arranged in two outer ends of magnetic conduction sleeve pipe.
According to an embodiment of the application, magnetic conduction sleeve pipe is continuous real wall sleeve pipe that magnetic conduction ferrous material is made or is interrupted real wall sleeve pipe; The periphery of magnetic conduction sleeve pipe is also arranged with irony sleeve pipe or copper sleeve or aluminum casing or plastic bushing.
According to an embodiment of the application, stator also comprises coil rack, be wound in the coil on coil rack and be enclosed within the coil sheath body made with permeability magnetic material of coil periphery; External permanent magnet is arranged in two outer ends of coil sheath body to pole.
According to an embodiment of the application, the axis sleeve of coil rack adopts the structure overhanging to two ends; The coil end face of coil rack is disc-shape or fluted disc shape.
According to an embodiment of the application, on the axis of the kinematic axis of mover or axis nearly week is provided with two to the built-in permanent magnet arranged pole; On stator and/or pedestal, around the position corresponding to the axis of the kinematic axis of mover, be provided with the external permanent magnet a pair pole arranged; In two outer ends of the kinematic axis of mover, built-in permanent magnet and external permanent magnet are formed magnetic spring in the mode of magnetic force mutual exclusion.
According to an embodiment of the application, be provided with the built-in permanent magnet a pair pole arranged on the axis of the kinematic axis of mover or axis nearly week; On stator and/or pedestal, around the position corresponding to the axis of mover kinematic axis, be provided with the external permanent magnet a pair pole arranged; In two outer ends of the kinematic axis of mover, built-in permanent magnet and external permanent magnet are formed magnetic spring in the mode of magnetic force mutual exclusion.
According to an embodiment of the application, built-in permanent magnet is also provided with built-in permanent magnet keeper; External permanent magnet is also provided with external permanent magnet keeper.
Another one embodiment of the present utility model is to provide a kind of linear electric motors, comprises mover, stator and pedestal; Mover is provided with the built-in permanent magnet that at least one pair of is arranged pole; Pedestal is provided with the mechanical spring for providing restoring force for linear electric motors reciprocating motion.
According to an embodiment of the application, mover also comprises kinematic axis and is arranged on the magnetic conduction sleeve pipe on kinematic axis; On the axis that built-in permanent magnet is arranged on kinematic axis or the nearly week of axis, pole is arranged in two outer ends of magnetic conduction sleeve pipe.
The technical scheme of the linear electric motors of the application has following beneficial effect:
1) the utility model by arranging the built-in permanent magnet arranged pole on mover, and just can realize the structure of simple linear electric motors, make the structure of linear electric motors more simply compact, control precision is high.
2) the utility model by arranging the built-in permanent magnet arranged pole on mover, stator and/or pedestal arrange the external permanent magnet arranged pole, replace existing linear electric motors must could be the structure of rectilinear motion by convert rotational motion by transmission mechanism, range of application is greatly enhanced, and structure of the linear motion actuator of the present utility model is simply compact, and control precision is high.
3) the utility model by arranging the built-in permanent magnet arranged pole on mover, pedestal arranges mechanical spring, just can realize the structure of part linear electric motors, due to the setting of built-in permanent magnet, make the structure of these linear electric motors more simply compact.
4) the utility model by arranging the built-in permanent magnet arranged pole on mover, stator and/or pedestal arrange the external permanent magnet arranged pole, the initial position of the movement output end of these linear electric motors and whole last static position is made all to determine constant, overcome the various problems that the position of the movement output end of general electric rotating machine is always uncertain brought, very large facility is brought to the load needing initial position stable, make the control of load more stable, more accurately.
5) the utility model by arranging the built-in permanent magnet arranged pole on mover, stator and/or pedestal arrange the external permanent magnet arranged pole, built-in permanent magnet and external permanent magnet are formed magnetic spring in the mode of magnetic force mutual exclusion, replace traditional mechanical spring, useful life extends, structure is simple, and reciprocating motion is highly sensitive, vibrates little during body movement.
6) the utility model is by positioning cloth postpone to the certain built-in permanent magnet of shape, size and magnetic field intensity and external permanent magnet, define and determine constant static magnetic field, along with controlled, the adjustable change of electrical quantity, the dynamic magnetic field that stator produces is also along with producing controlled, adjustable change, the interaction of dynamic magnetic field and static magnetic field, the stroke size that straight reciprocating motion is exported, size of exerting oneself be all variable, can be in harmonious proportion controlled, be more conducive to realize the manipulation to the automation of linear electric motors, digitlization, computerization and networking.
Accompanying drawing explanation
Fig. 1 is the profile of the linear electric motors of the embodiment 1 of the application.
Fig. 2 is the stereogram of the coil rack of the embodiment 1 of the application.
Fig. 3 is the profile of the linear electric motors of the embodiment 2 of the application.
Fig. 4 is the stereogram of the coil rack of the embodiment 2 of the application.
Fig. 5 is the section face of the linear electric motors of the embodiment 3 of the application.
Wherein, 1, mover; 11, kinematic axis; 12, built-in permanent magnet; 13, built-in permanent magnet keeper; 14, magnetic conduction sleeve pipe; 2, stator; 21, external permanent magnet; 22, coil; 23, coil rack; 24, coil sheath body; 25, external permanent magnet keeper; 3, pedestal; 31, end cap; 32, bearing; 33, end cap locating rack.
Embodiment
For making the object of the application, technical scheme and advantage clearly, below in conjunction with drawings and the specific embodiments, the application is described in further detail.
embodiment 1
The linear electric motors of the present embodiment, as shown in Figure 1, be made up of mover 1, stator 2 and pedestal 3, mover 1 and stator 2 are fixedly mounted on pedestal 3, and pedestal 3 comprises end cap 31, end cap locating rack 33 and bearing 32.
Mover 1 comprises kinematic axis 11 and magnetic conduction sleeve pipe 14, the axis of kinematic axis is provided with the built-in permanent magnet 12 a pair pole is arranged in outside magnetic conduction sleeve pipe 14 two ends, built-in permanent magnet 12 is positioned by built-in permanent magnet keeper 13, and built-in permanent magnet 12 can be magnet ring, also can be magnetic post; Wherein, magnetic conduction sleeve pipe 14 adopts permeability magnetic material to make, and can adopt the continuous real wall sleeve pipe of irony or be interrupted real wall sleeve pipe, the continuous real wall sleeve pipe that silicon steel sheet also can be adopted to make or be interrupted real wall sleeve pipe; The periphery of magnetic conduction sleeve pipe 14 is also overlapped irony sleeve pipe or copper sleeve or aluminum casing or plastic bushing.
Stator 2 comprises coil rack 23, be wound in the coil 22 on coil rack and be enclosed within the coil sheath body 24 made with permeability magnetic material of coil periphery; On this stator 2, around position corresponding to the axis of the kinematic axis of mover 1, also be provided with the external permanent magnet 21 a pair pole is arranged in outside the two ends of coil sheath body 24, external permanent magnet 21 is positioned by external permanent magnet keeper 25, external permanent magnet 21 can be magnet ring, also can be magnetic post; Wherein, as shown in Figure 2, the axis sleeve of coil rack 23 adopts the structure overhanging to two ends; The coil end face of coil rack 23 is disc-shape.
In two outer ends of the kinematic axis of mover 1, a built-in permanent magnet 12 and an external permanent magnet 21 are formed magnetic spring in the mode of magnetic force mutual exclusion, the motion that this magnetic spring is not only mover provides restoring force, the home position of mover can also be stablized, the reciprocating motion of steady mover, reduce the friction of motion resistance of kinematic axis, reduce the vibration noise of linear electric motors.
After these linear electric motors are made, static magnetic field constructed by the permanent magnet arrange pole just determines, it make mover 1 stable be on home position, after start energising, when passing to alternating current in coil 22, size will be formed in stator 2 periphery, direction does periodically variable dynamic magnetic field, the reciprocation of dynamic magnetic field and former static magnetic field thus, mover 1 just creates the reciprocating driving force that size, direction periodically replace change, and manipulation mover 1 does straight reciprocating motion.This reciprocating motion of mover acts synergistically owing to there being the cooperation of the magnetic spring at mover two ends, and the motion of mover is just controlled in the stroke range of design stably, makes linear electric motors be able to normal work under the adjustment of controlled electrical quantity controls.After closing tester in power-down state, the dynamic magnetic field produced by stator coil disappears immediately, and mover motion stops immediately, and be returned to the position that linear electric motors start its place front, linear electric motors complete the whole course of work thus.
embodiment 2
The structure of the linear electric motors of the present embodiment is substantially identical with the structure of embodiment 1, and difference is only: as shown in Figure 3, the axis of the kinematic axis of mover 1 be provided with two nearly week to the built-in permanent magnet 12 be arranged in pole outside magnetic conduction sleeve pipe 14 two ends; On the end cap 31 of pedestal 3, around the position corresponding to the axis of the kinematic axis of mover 1, be provided with the external permanent magnet 21 a pair pole arranged.
In two outer ends of the kinematic axis of mover, external permanent magnet 21 and built-in permanent magnet 12 are formed the magnetic spring of a pair combined type in the mode of magnetic force mutual exclusion.
In addition, as shown in Figure 4, the coil end face of coil rack 23 is fluted disc shape.
embodiment 3
The structure of the linear electric motors of the present embodiment is substantially identical with the structure of embodiment 1, difference is only: as shown in Figure 5, on the end cap 31 of pedestal 3, around the position corresponding to the axis of the kinematic axis of mover 1, be also provided with the external permanent magnet 21 a pair pole arranged.
embodiment 4
The linear electric motors of the present embodiment, are made up of mover 1, stator 2 and pedestal 3, and mover 1 and stator 2 are fixedly installed in pedestal 3; Mover 1 is a kinematic axis inherently, and mover 1 only forms the built-in permanent magnet 12 that pole is arranged on the axis of kinematic axis by a pair.
Stator 2 comprises coil rack 23, be wound in the coil 22 on coil rack and be enclosed within the coil sheath body 24 made with permeability magnetic material of coil periphery.
Pedestal 3 comprises end cap 31, end cap locating rack 33 and bearing 32.
These linear electric motors may be used for manufacturing large but that impulse stroke the is little occasions that take efforts such as ail gun, impactor and shallow bore hole excavation device; The course of work of these linear electric motors is similar to Example 1, and after just closing tester in power-down state, mover resets by the magnetic attraction of the built-in permanent magnet of mover and the coil of stator.In addition, when give in coil pass to impulse commutation electric current, this technical scheme may be used for the product developing electromagnetically operated valve one class.
embodiment 5
The linear electric motors of the present embodiment, are made up of mover 1, stator 2 and pedestal 3, and mover 1 and stator 2 are fixedly mounted on pedestal 3.
Mover 1 comprises kinematic axis 11 and magnetic conduction sleeve pipe 14, the axis of kinematic axis 11 is provided with the built-in permanent magnet 12 a pair pole is arranged in outside magnetic conduction sleeve pipe 14 two ends, built-in permanent magnet 12 is positioned by built-in permanent magnet keeper 13, and built-in permanent magnet 12 can be magnet ring, also can be magnetic post; Wherein, magnetic conduction sleeve pipe 14 adopts permeability magnetic material to make, and can adopt the continuous real wall sleeve pipe of irony or be interrupted real wall sleeve pipe, the continuous real wall sleeve pipe that silicon steel sheet also can be adopted to make or be interrupted real wall sleeve pipe; The periphery of magnetic conduction sleeve pipe is also overlapped irony sleeve pipe or copper sleeve or aluminum casing or plastic bushing.
Stator 2 comprises coil rack 23, be wound in the coil 22 on coil rack and be enclosed within the coil sheath body 24 made with permeability magnetic material of coil periphery.Wherein, as shown in Figure 2, the axis sleeve of coil rack 23 adopts the structure overhanging to two ends; The coil end face of coil rack 23 is disc-shape.
Pedestal 3 comprises end cap 31, end cap locating rack 33 and bearing 32, pedestal 3 is also provided with thinking that linear electric motors reciprocating motion provides the mechanical spring of restoring force.
These linear electric motors may be used for less demanding to kinematic accuracy, to the not tight occasion of the environmental pollution requirements such as vibration noise, as ramming machine etc.; The course of work of the linear electric motors of this programme is similar to embodiment 1, and just the motion reset of mover and initial alignment can be subject to the impact of mechanical spring.
The purposes to the permanent magnet that pole is arranged adopted in the utility model is very extensive, according to practical application, adopts the multipair permanent magnet arranged pole targeted specifically, two pairs to pole arrange permanent magnet or only with a pair built-in to pole permanent magnet or only use a pair external to pole permanent magnet when, not only may be used for develop linear electric motors, the common mechanical devices such as electromagnetically operated valve, but also can be used for research and development linear electromagnetic saw, brute force attack device, electromagnetic brake, reversing switch, reciprocating sliding device, medical pressing massager, and the device that can obtain reciprocating motion restoring force from load itself, as compressor reducer, bouncer, bounce-back machine and health and fitness facilities etc., and the driver of various reciprocating mechanism or machinery, as reciprocating pump, vacuum pump, compression pump and membrane pump etc., and ramming machine, expander, rocker, pumping device and liquid drawing device, and daily cleaning instrument, as mop, draw device for opening and closing curtain and ail gun etc., the massage booster that we are common, linear compressor, suction/exhausting machinery, press machines, commutation booster, magnetic therapeutic massage device, even rural area well water pumping rocking arm driver etc. can apply the expansion and the improvement that the permanent magnet of pole layout are obtained to function and performance.
Linear electric motors of the present utility model can export the motion actuating force of mechanical straight reciprocating motion simultaneously at the two ends of motor, be equivalent to the output that single machinery can have two actuating forces, more energy-saving and environmental protection.
The foregoing is only the embodiment of the application, be not limited to the application, for a person skilled in the art, the application can have various modifications and variations.Within all spirit in the application and principle, any amendment done, equivalent replacement, improvement etc., within the right that all should be included in the application.
Claims (10)
1. linear electric motors, comprise mover, stator and pedestal, and described mover and stator are arranged on pedestal; It is characterized in that:
Described mover is provided with the built-in permanent magnet that at least one pair of is arranged pole;
Described stator and/or pedestal are also provided with at least one pair of external permanent magnet arranged pole; Further, a pair built-in permanent magnet and a pair external permanent magnet is had at least to be formed magnetic spring in the mode of magnetic force mutual exclusion.
2. linear electric motors according to claim 1, is characterized in that: described mover also comprises kinematic axis and is arranged on the magnetic conduction sleeve pipe on kinematic axis; On the axis that described built-in permanent magnet is arranged on described kinematic axis or the nearly week of axis, pole is arranged in two outer ends of described magnetic conduction sleeve pipe.
3. linear electric motors according to claim 2, is characterized in that: described magnetic conduction sleeve pipe is continuous real wall sleeve pipe that magnetic conduction ferrous material is made or is interrupted real wall sleeve pipe; The periphery of described magnetic conduction sleeve pipe is also arranged with irony sleeve pipe or copper sleeve or aluminum casing or plastic bushing.
4. linear electric motors according to claim 1, is characterized in that: described stator also comprises coil rack, be wound in the coil on coil rack and be enclosed within the coil sheath body made with permeability magnetic material of described coil periphery; Described external permanent magnet is arranged in two outer ends of described coil sheath body to pole.
5. linear electric motors according to claim 4, is characterized in that: the axis sleeve of described coil rack adopts the structure overhanging to two ends; The coil end face of described coil rack is disc-shape or fluted disc shape.
6. linear electric motors according to claim 1, is characterized in that: described pedestal comprises end cap, end cap locating rack and bearing; Described external permanent magnet is arranged on described end cap pole.
7., according to the arbitrary described linear electric motors of claim 2 to 6, it is characterized in that: on the axis of the kinematic axis of described mover or axis nearly week is provided with two to the built-in permanent magnet arranged pole; On stator and/or pedestal, around the position corresponding to the axis of the kinematic axis of mover, be provided with the external permanent magnet a pair pole arranged; In two outer ends of the kinematic axis of mover, built-in permanent magnet and external permanent magnet are formed magnetic spring in the mode of magnetic force mutual exclusion.
8. according to the arbitrary described linear electric motors of claim 2 to 6, it is characterized in that: be provided with the built-in permanent magnet a pair pole arranged on the axis of the kinematic axis of described mover or axis nearly week; On stator and/or pedestal, around the position corresponding to the axis of mover kinematic axis, be provided with the external permanent magnet a pair pole arranged; In two outer ends of the kinematic axis of mover, built-in permanent magnet and external permanent magnet are formed magnetic spring in the mode of magnetic force mutual exclusion.
9., according to the arbitrary described linear electric motors of claim 1 to 6, it is characterized in that: described built-in permanent magnet is also provided with built-in permanent magnet keeper; Described external permanent magnet is also provided with external permanent magnet keeper.
10. linear electric motors, comprise mover, stator and pedestal; It is characterized in that: described mover is provided with the built-in permanent magnet that at least one pair of is arranged pole; Described pedestal is provided with the mechanical spring for providing restoring force for linear electric motors reciprocating motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420781594.XU CN204271877U (en) | 2014-12-12 | 2014-12-12 | A kind of linear electric motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420781594.XU CN204271877U (en) | 2014-12-12 | 2014-12-12 | A kind of linear electric motors |
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| Publication Number | Publication Date |
|---|---|
| CN204271877U true CN204271877U (en) | 2015-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420781594.XU Expired - Fee Related CN204271877U (en) | 2014-12-12 | 2014-12-12 | A kind of linear electric motors |
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| Country | Link |
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| CN (1) | CN204271877U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467352A (en) * | 2014-12-12 | 2015-03-25 | 成都气海机电制造有限公司 | Linear motor |
| WO2021196315A1 (en) * | 2020-04-02 | 2021-10-07 | 瑞声声学科技(深圳)有限公司 | Linear vibration motor |
-
2014
- 2014-12-12 CN CN201420781594.XU patent/CN204271877U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467352A (en) * | 2014-12-12 | 2015-03-25 | 成都气海机电制造有限公司 | Linear motor |
| WO2021196315A1 (en) * | 2020-04-02 | 2021-10-07 | 瑞声声学科技(深圳)有限公司 | Linear vibration motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20211212 |
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| CF01 | Termination of patent right due to non-payment of annual fee |