CN209030063U - Linear motor - Google Patents
Linear motor Download PDFInfo
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- CN209030063U CN209030063U CN201821732837.5U CN201821732837U CN209030063U CN 209030063 U CN209030063 U CN 209030063U CN 201821732837 U CN201821732837 U CN 201821732837U CN 209030063 U CN209030063 U CN 209030063U
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- stator
- stator module
- linear motor
- mover
- pedestal
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Abstract
The utility model provides a kind of linear motor.The linear motor includes pedestal (1), stator module (2) and mover assembly (3), and stator module (2) can be slidably arranged on pedestal (1).Linear motor according to the present utility model can shorten the length of stator while guaranteeing the movement length of mover, reduce linear motor cost.
Description
Technical field
The utility model belongs to technical field of motors, and in particular to a kind of linear motor.
Background technique
Traditional line movement is rotated rotating electric machine using screw structure using the structure of " rotating electric machine+ball-screw "
The movement in direction is converted to using required linear motion, but there is problems for this kind of drive.With related skill
The progress of art, the linear servo-actuator risen again in recent years (hereinafter referred to as " linear motor ") efficiently solve " electric rotating
The problem of machine+ball-screw " structure: linear motor does not have lead screw, so length is not limited by lead screw length, linear motor
Absolute precision, repeatable accuracy, maximum speed and peak acceleration are higher etc..
The working principle of linear motor can simply be understood as rotating electric machine tangentially pulling into straight line, stationary part along motor
As stator, mobile rotor portion becomes mover.On the one hand, linear motor product currently on the market, is all to consolidate stator
It is scheduled on the fixed position such as stator base and arranges whole length along the mover direction of motion, sliding rail is also fixed, and only mover is on the slide rail
It moves along a straight line.On the other hand, considering for motor Material Cost and production technology, linear motor product currently on the market
Mostly using winding as mover, permanent magnet as the short mover of stator primary, the structure of long stator secondary.To sum up two o'clock, stator edge
The length of the direction of motion is equal to the movement length of mover, and the price of rare-earth permanent magnet is up to 350 yuan/kg, some high trades mark
Permanent magnet price it is even higher, and the materials such as winding copper wire and steel are only its 1/8 price, thus by set of permanent magnets at determine
Sub- Material Cost is high.
Utility model content
Therefore, the technical problem to be solved by the present invention is to provide a kind of linear motors, can guarantee mover
The length for shortening stator while movement length, reduces linear motor cost.
To solve the above-mentioned problems, the utility model provides a kind of linear motor, including pedestal, stator module and mover group
Part, stator module can be slidably arranged on pedestal.
Preferably, mover assembly corresponds to stator module setting, and can be slidably arranged on pedestal.
Preferably, stator guiding track is provided on pedestal, stator module can be slidably arranged on stator guiding track.
Preferably, stator module includes the stator core of magnetic steel of stator with two opposite sides that magnetic steel of stator is arranged in, fixed
Sub- iron core can be slidably arranged on stator guiding track.
Preferably, mover sliding rail is provided on pedestal, mover assembly can be slidably arranged on mover sliding rail.
Preferably, thrust device is additionally provided on pedestal, thrust device is used to provide thrust for stator module, so that
Stator module moves in the same direction with mover assembly.
Preferably, thrust device further includes trigger unit, and trigger unit is arranged on the motion path of stator module, and
Stator module triggers control thrust device work after trigger unit.
Preferably, pedestal is provided with trigger unit along the both ends of stator module glide direction.
Preferably, thrust device includes spring, hydraulic device, pneumatic shuttle, spiro driving device or electric power pushing meanss.
Preferably, mover sliding rail is two, and two mover sliding rails are arranged in parallel, and is located on sustained height, mover assembly
It is supported and is suspended on stator module by mover sliding rail.
Linear motor provided by the utility model, including pedestal, stator module and mover assembly, stator module can slide
Ground is arranged on the base.Since stator module itself also can be relative to base motion, can use stator module can
The characteristics of movement, achievees the purpose that greatly shorten the length ruler of stator module with the longer move distance of relatively short stroke realization
It is very little, the utilization rate of stator module length direction is improved, the dosage of permanent magnet on stator module is reduced, reduces linear motor moving-coil type
Material cost.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the linear motor of the utility model embodiment；
Fig. 2 is the structural schematic diagram of the linear motor of the utility model embodiment；
Fig. 3 is the A-A of Fig. 2 to schematic cross-sectional view；
The control method flow chart of the linear motor of Fig. 4 the utility model embodiment.
Appended drawing reference indicates are as follows:
1, pedestal；2, stator module；3, mover assembly；4, stator guiding track；5, magnetic steel of stator；6, stator core；7, mover
Sliding rail；8, thrust device.
Specific embodiment
In conjunction with referring to shown in Fig. 1 to Fig. 3, embodiment according to the present utility model, linear motor includes pedestal 1, stator pack
Part 2 and mover assembly 3, stator module 2 can be slidably arranged on pedestal 1.Preferably, the corresponding stator module 2 of mover assembly 3
Setting, and can be slidably arranged on pedestal 1.
Since stator module 2 itself can also be moved relative to pedestal 1, can use stator module 2 can be moved
The characteristics of achieve the purpose that realize longer move distance with relatively short stroke, can guarantee the constant feelings of 3 movement length of mover assembly
Greatly shorten the length dimension of stator module under condition, improve the utilization rate of stator module length direction, reduces on stator module
The dosage of permanent magnet reduces linear motor material cost.
Stator guiding track 4 is provided on pedestal 1, stator module 2 can be slidably arranged on stator guiding track 4.The stator is led
The bottom of stator module 2 is arranged in rail 4, bottom support can be formed to stator module 2, so that stator module 2 is relative to pedestal 1
Vacantly, the contact area between stator module 2 and pedestal 1 is reduced, the sliding friction of stator module 2 is reduced.
In the present embodiment, stator module 2 includes magnetic steel of stator 5 and two opposite sides of magnetic steel of stator 5 are arranged in determine
Sub- iron core 6, stator core 6 can be slidably arranged on stator guiding track 4.Wherein stator core 6 is T-shaped structure, and stator is led
Rail 4 is two, the two sides of the T-shaped structure supported respectively, and at the middle part of T-shaped structure, setting is fluted, for placing stator
Magnet steel 5, wherein magnetic steel of stator 5 is consistent with the overhead height of stator core 6.Stator core 6 is designed as T-shaped, can reduced
The material utilization amount of stator module 2 rationally carries out the setting of magnetic steel of stator 5 using the structure of stator core 6, reduces stator module 2
Overall volume, and can effectively ensure that the structural strength of stator core 6.
Mover sliding rail 7 is provided on pedestal 1, mover assembly 3 can be slidably arranged on mover sliding rail 7.In this implementation
In example, the both ends of mover sliding rail 7 are fixed on pedestal 1, and mover sliding rail 7 is threaded through on mover assembly 3, to mover assembly 3
It while playing guiding role, plays a supporting role to mover assembly 3, so that mover assembly 3 is suspended on stator module 2, keeps away
Exempt to be in contact between mover assembly 3 and stator module 2, and can effectively ensure that the gas between mover assembly 3 and stator module 2
Gap guarantees the movenent performance of mover assembly 3.Preferably, the height of mover sliding rail 7 is adjustable, dynamic so as to rationally adjust
Air gap between sub-component 3 and stator module 2 improves the magnetic property that mover assembly 3 and stator module 2 cooperate.Preferably, mover
Sliding rail 7 is two, and two mover sliding rails 7 are arranged in parallel, and is located on sustained height.Mover sliding rail 7 can be round bar, can also be with
For square bar, or other rod-like structures.
Thrust device 8 is additionally provided on pedestal 1, thrust device 8 is used to provide thrust for stator module 2, so that fixed
Sub-component 2 and mover assembly 3 move in the same direction.The thrust device 8 includes spring, hydraulic device, pneumatic shuttle, spiro driving device
Or electric power pushing meanss, or it is other to provide thrust for stator module 2, so that stator module 2 is along mover
The mechanism or device of the direction of motion movement of component 3.
Thrust device 8 further includes trigger unit, and trigger unit is arranged on the motion path of stator module 2, and in stator
Control thrust device 8 works after component 2 triggers trigger unit.The trigger unit is travel switch or microswitch etc..The touching
Bill member is connect with the control unit of thrust device 8, trigger signal can be conveyed to control unit, so that control unit
Corresponding control signal is issued, control thrust device 8 pushes stator module 2 to move relative to pedestal 1.
Pedestal 1 is provided with trigger unit along the both ends of 2 glide direction of stator module, can move in stator module 2
The predetermined position at 1 both ends of pedestal, having thrust device 8 is that stator module 2 provides thrust, guarantees that stator module 2 can
Enough distances are moved along pedestal 1, shorten the dosage of permanent magnet on stator module 2 by the movement of stator module 2, reduce stator
The cost of component 2.
After being powered to linear motor, stator module 2 and mover assembly 3 generate the thrust to interact because of electromagnetic induction,
Mover assembly 3 is moved horizontally along mover sliding rail 7 towards assigned direction, and stator module 2 is due to the phase negative side by mover assembly 3
To active force along moving with 3 opposite direction of mover assembly, when stator module 2 moves to predeterminated position, touching can be squeezed
Thrust device 8, thrust device 8 trigger and reversely push stator module 2, make the direction of motion of stator module 2 and mover assembly 3
The direction of motion is consistent, and when mover assembly 3 moves to extreme position, motor driver inputs electrical-coil winding signal and generates instead
To travelling-magnetic-field, mover assembly 3 is started reversely to move horizontally by opposing magnetic field effect, and stator module 2 passes through the other end at this time
Thrust device 8 makes stator module 2 and mover assembly 3 still keep reversed horizontal movement, final to realize that linear motor is transported back and forth horizontally
Dynamic effect.
In conjunction with shown in Figure 4, embodiment according to the present utility model, a kind of control method packet of above-mentioned linear motor
It includes: S1: being powered on to linear motor；S2: being powered to mover assembly 3, move mover assembly 3 to predeterminated position, controls mover group
Part 3 and stator module 2 move in opposite directions；S3: detection stator module 2 movement position, when stator module 2 move to it is default
When position, deboost is applied to stator module 2, moves stator module 2 and mover assembly 3 in the same direction；S4: when mover assembly 3
After moving to predeterminated position, reversely it is powered to mover assembly 3, controls mover assembly 3 and stator module 2 moves in opposite directions；
S5: step S3 and S4 are repeated.
After motor is initially powered up, between mover assembly 3 and stator module 2 due to electromagnetic induction generate interaction force, two
Person moves along mover sliding rail 7 and stator guiding track 4 to opposite direction respectively.Wherein stator module 2 can move to motor rectilinear seats 1
One end, stator module 2 triggers by the modes such as squeezing and is mounted on the thrust device 8 of the inside of motor one end marble pedestal 1.It pushes away
Power device 8 is triggered, and generates the thrust opposite with the former direction of motion of stator module 2.The stator pack reversely pushed by thrust device 8
Part 2 changes the direction of motion, moves round about, i.e., consistent with 3 direction of motion of mover assembly.Pass through 3 He of mover assembly again
Interaction force between stator module 2, stator module 2 give the thrust " transmitting " of thrust device 8 to mover assembly 3, so that dynamic
Sub-component 3 can finally move to target position, so just complete the trigger process of a thrust device 8, hereafter can be according to upper
Control process is stated back and forth to carry out.
Step S3 includes: the trigger signal for detecting stator module 2；After receiving the trigger signal of stator module 2, control
Thrust device 8 reversely pushes stator module 2.
Those skilled in the art will readily recognize that above-mentioned each advantageous manner can be free under the premise of not conflicting
Ground combination, superposition.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all practical at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the guarantor of the utility model within novel spirit and principle
Within the scope of shield.Above are merely preferred embodiments of the utility model, it is noted that for the ordinary skill of the art
For personnel, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these improvement
It also should be regarded as the protection scope of the utility model with modification.
Claims (9)
1. a kind of linear motor, which is characterized in that including pedestal (1), stator module (2) and mover assembly (3), the stator pack
Part (2) can be slidably arranged on the pedestal (1)；Corresponding stator module (2) setting of the mover assembly (3), and
And it can be slidably arranged on the pedestal (1).
2. linear motor according to claim 1, which is characterized in that stator guiding track (4) are provided on the pedestal (1),
The stator module (2) can be slidably arranged on the stator guiding track (4).
3. linear motor according to claim 2, which is characterized in that the stator module (2) include magnetic steel of stator (5) and
Stator core (6) in two opposite sides of the magnetic steel of stator (5) is set, and the stator core (6) can be slidably arranged
On the stator guiding track (4).
4. linear motor according to claim 1, which is characterized in that mover sliding rail (7) are provided on the pedestal (1),
The mover assembly (3) can be slidably arranged on the mover sliding rail (7).
5. linear motor according to any one of claim 1 to 4, which is characterized in that be additionally provided on the pedestal (1)
Thrust device (8), the thrust device (8) is used to provide thrust for the stator module (2), so that the stator module
(2) it is moved in the same direction with the mover assembly (3).
6. linear motor according to claim 5, which is characterized in that the thrust device (8) further includes trigger unit, institute
It states trigger unit to be arranged on the motion path of the stator module (2), and triggers the triggering list in the stator module (2)
The thrust device (8) work is controlled after member.
7. linear motor according to claim 6, which is characterized in that the pedestal (1) is slided along the stator module (2)
The both ends in direction are provided with the trigger unit.
8. linear motor according to claim 5, which is characterized in that the thrust device (8) includes spring, hydraulic dress
It sets, pneumatic shuttle, spiro driving device or electric power pushing meanss.
9. linear motor according to claim 4, which is characterized in that the mover sliding rail (7) is two, and two described dynamic
Sub- sliding rail (7) is arranged in parallel, and is located on sustained height, and the mover assembly (3) is supported and hanged by the mover sliding rail (7)
Float on the stator module (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821732837.5U CN209030063U (en) | 2018-10-23 | 2018-10-23 | Linear motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821732837.5U CN209030063U (en) | 2018-10-23 | 2018-10-23 | Linear motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209030063U true CN209030063U (en) | 2019-06-25 |
Family
ID=66907410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821732837.5U Active CN209030063U (en) | 2018-10-23 | 2018-10-23 | Linear motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209030063U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038995A (en) * | 2018-10-23 | 2018-12-18 | 珠海格力电器股份有限公司 | Linear motor and its control method |
| CN116418190A (en) * | 2023-04-18 | 2023-07-11 | 上海世禹精密设备股份有限公司 | High-speed moving shock absorbing method and device |
-
2018
- 2018-10-23 CN CN201821732837.5U patent/CN209030063U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038995A (en) * | 2018-10-23 | 2018-12-18 | 珠海格力电器股份有限公司 | Linear motor and its control method |
| CN116418190A (en) * | 2023-04-18 | 2023-07-11 | 上海世禹精密设备股份有限公司 | High-speed moving shock absorbing method and device |
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