CN107147269A - A kind of permanent-magnetism linear motor is secondary - Google Patents
A kind of permanent-magnetism linear motor is secondary Download PDFInfo
- Publication number
- CN107147269A CN107147269A CN201710401783.8A CN201710401783A CN107147269A CN 107147269 A CN107147269 A CN 107147269A CN 201710401783 A CN201710401783 A CN 201710401783A CN 107147269 A CN107147269 A CN 107147269A
- Authority
- CN
- China
- Prior art keywords
- installing plate
- permanent
- linear motor
- magnetism linear
- permanent magnet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
- H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type
Abstract
The invention discloses a kind of permanent-magnetism linear motor secondary, including at least one secondary units, secondary units include permanent magnet and installing plate, and permanent magnet is installed on a mounting board；Installing plate bottom indent between outside board surface for forming air gap；The both sides of installing plate are offered through the cooling duct of installing plate opposite end.The present invention between installing plate and outside board by forming air gap, and open up cooling duct in the both sides of installing plate, the cooling agent of flowing is passed through in toward cooling duct, air gap is difficult to discharge through bottom air gap when causing heat to transmit in installing plate, and move to the position of installing plate both sides and cooled passage is taken away and discharged outside installing plate, the cooling of installing plate is realized, prevents that permanent magnet from demagnetizing, declining to a great extent for external motor thrust is avoided, the potential safety hazard of board brake fade is reduced.
Description
Technical field
The present invention relates to linear electric motors field, more particularly to a kind of permanent-magnetism linear motor are secondary.
Background technology
At present, the characteristics of linear electric motors have high responsiveness and long-time stability and the work in-process heart, shaped discharge processing
Increasingly it is widely applied in the industrial machinery such as machine and gantry system.Linear electric motors can regard electric rotating machine as and radially cut open
Open and deploy to be in line, the stator of electric rotating machine turns into the mover (being also known as primary) of linear electric motors, the rotor of electric rotating machine into
For the stator (being also known as secondary) of linear electric motors, secondary includes installing plate and the permanent magnet installed in installing plate, and installing plate is installed
On board.
There is heat loss in linear electric motors, a heat part for generation stays in a primary part and stays in secondary when running.Due to
Primary volume itself is larger, is easily integrated cooling duct and is cooled down, thus primary radiating has obtained preferable guarantee.But
It is that existing linear electric motors have following defect：Installing plate is then difficult to integrated water channel and cooled down, and main cause has following three
Point：1. for amechanical angle, the stress of permanent magnet suffered by installing plate is larger, it is desirable to which it is firm that installing plate is consolidated, and removes and install
The processing of plate material can cause installing plate intensity decreases；2. for electromagnetic point, the installing plate immediately below permanent magnet, which is played, leads
Magnetic action, removing the processing of installing plate material can cause magnetic conductivity at this to decline so that magnetic field intensity declines, and finally influences motor
Performance.3. from the point of view of thermal losses angle, during motor operation, thermal losses, which is deposited, spreads all over installing plate everywhere, and common cooling way can only
It is cooled to part, however it remains the situation that installing plate heat is absorbed by board, still can triggers board thermal deformation.3 points of the above,
The cooling difficulty for causing permanent-magnetism linear motor secondary, and heat is not pulled away, then temperature will continue to rise the too high meeting of secondary temperature
Cause permanent magnet to demagnetize, once there is permanent magnet demagnetization motor thrust will be made to decline to a great extent, the safety that there is board brake fade
Hidden danger.
The content of the invention
It is secondary it is an object of the invention to provide a kind of permanent magnet linear electric motors in order to overcome the deficiencies in the prior art, its
The cooling of installing plate can be realized, to reduce the potential safety hazard of outside board brake fade.
The purpose of the present invention adopts the following technical scheme that realization：
A kind of permanent-magnetism linear motor is secondary, including at least one secondary units, and the secondary units include permanent magnet and peace
Plate is filled, the permanent magnet is arranged on the installing plate；Installing plate bottom indent is between outside board surface
Form air gap；The both sides of the installing plate are offered through the cooling duct of the installing plate opposite end.
Further, the secondary units quantity is two or more；It is two or more described secondary single
Member is arranged in order along straight line, and any two adjacent cooling ducts are connected by connection component.
Further, the connection component includes two jointings and connecting tube, two connectors point of the connection component
It is not arranged in removably mode at two adjacent apertures of two adjacent cooling ducts；Each jointing with the cooling
Passage is connected；The two ends of the connecting tube of the connection component correspond to sealing and are plugged in described in the two of the connection component respectively to be connected
On joint, and the connecting tube of the connection component connects jointing described in the two of the connection component.
Further, internal thread is offered at two openings of the cooling duct, the jointing is offered and institute
State the external screw thread of internal thread threaded.
Further, the connecting tube be plugged between the position of the jointing and the jointing be provided with it is close
Seal.
Further, the two ends of the connecting tube are protruding with positive stop lug boss, and the positive stop lug boss is formed with confined planes, institute
State confined planes and offseted with the corresponding jointing close to the end face of the connecting tube and touched.
Further, the permanent magnet is fixed on the installing plate by viscose.
Further, offered on the installing plate and deposit glue groove, the viscose is filled in described deposit in glue groove.
Further, the secondary embedding glue-line for also including wrapping the permanent magnetism external surface of the permanent-magnetism linear motor.
Further, neck is offered on the installing plate, the permanent magnet is installed in the neck.
Further, the neck is in dovetail shaped.
Compared with prior art, the beneficial effects of the present invention are：
The present invention is led to by forming air gap between installing plate and outside board, and opening up cooling in the both sides of installing plate
Road, toward cooling duct in be passed through the cooling agent of flowing, air gap is difficult to when causing heat to be transmitted in installing plate through bottom air gap
Discharge, and the position of installing plate both sides is moved to, and taken away and discharged outside installing plate by the cooling duct of both sides, realize installation
The cooling of plate, prevents permanent magnet from demagnetizing, it is to avoid the declining to a great extent of external motor thrust, and the safety for reducing board brake fade is hidden
Suffer from；Furthermore, reduce the heat that installing plate is transferred to outside board, it is ensured that the machining accuracy of board.
Brief description of the drawings
Fig. 1 is the secondary structural representation of permanent magnet linear electric motors of the present invention (removing embedding glue-line)；
Fig. 2 is the secondary perspective view of permanent magnet linear electric motors of the present invention；
Fig. 3 is the side view of installing plate of the present invention；
Fig. 4 is the sectional view of installing plate of the present invention；
Fig. 5 is the top view of installing plate of the present invention；
Fig. 6 is the secondary overall structure figure of permanent magnet linear electric motors of the present invention；
Fig. 7 is the sectional view of connection component of the present invention；
Fig. 8 is the explosive view of connection component of the present invention.
In figure：10th, secondary units；11st, permanent magnet；12nd, installing plate；121st, cooling duct；122nd, glue groove is deposited；123rd, block
Groove；20th, air gap；30th, connection component；31st, jointing；311st, external screw thread；32nd, connecting tube；321st, positive stop lug boss；3211st, limit
Plane；33rd, sealing ring；40th, embedding glue-line；50th, outside board.
Embodiment
Below, with reference to accompanying drawing and embodiment, the present invention is described further, it is necessary to which explanation is, not
Under the premise of afoul, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination
Example.
A kind of permanent-magnetism linear motor as Figure 1-3 is secondary, including at least one secondary units 10, and secondary units 10 are wrapped
Permanent magnet 11 and installing plate 12 are included, permanent magnet 11 is arranged on installing plate 12；The bottom indent of installing plate 12 for outside machine
Air gap 20 is formed between the surface of platform 50；The both sides of installing plate 12 are offered through the cooling duct of the opposite end of installing plate 12
121。
In use, toward the cooling agent that flowing is passed through in cooling duct 121, when this permanent-magnetism linear motor secondary produces heat
When, heat transfer to installing plate 12, because air is poor conductor of heat, the reduction of its thermal conductivity and the bottom of installing plate 12 and outside machine
Air gap 20 is formed between platform 50, is difficult to discharge through bottom air gap 20 when causing heat to transmit in installing plate 12, most of heat
Measure and moved with the geometry of installing plate 12, and move to the position of the both sides of installing plate 12, and the cooling in cooled passage 121
Agent is taken away, and realizes the cooling of installing plate 12.
It is smaller to the thickness effect of installing plate 12 by the way that cooling duct 121 to be opened in the both sides of installing plate 12, and to magnetic
Roadbed this without influence, ensure that secondary normal of this permanent-magnetism linear motor is used, meanwhile, pass through shape between bottom and outside board 50
Into air gap 20, realize that most of heat concentrates the both sides for being moved to installing plate 12, and so that being opened in the cooling duct 121 of both sides
The heat of installing plate 12 can be taken away, and then installing plate 12 is cooled, prevent permanent magnet 11 from demagnetizing, it is to avoid external motor is pushed away
Declining to a great extent for power, reduces the potential safety hazard of the outside brake fade of board 50；Furthermore, reduce installing plate 12 and be transferred to outside board
50 heat, it is ensured that the machining accuracy of outside board 50.
Cooling agent, mode one can be passed through in above-described embodiment using following two modes：Cooling positioned at the same side is led to
Road 121 wherein one opening (A1 as depicted) as water inlet, another opening (such as Fig. 1 A2) as water return outlet, and then
Cooling agent is passed through, the cooling pressure drop of which one is smaller, it is adaptable to which this more permanent-magnetism linear motor of secondary units 10 is secondary；Side
Formula two：It regard wherein one opening (A1 as depicted) of a wherein cooling duct 121 as water inlet), wherein a cooling duct
121 another opening (such as Fig. 1 A2) and wherein one opening (B1 as shown in Figure 1) of another cooling duct 121 directly pass through
Connecting tube 32 is connected, and another opening (B2 as shown in Figure 1) of another cooling duct 121 is entered as the mode of water return outlet
And it is passed through cooling agent；The cooling pressure drop of which two is larger, but intake-outlet concentrates on side, suitable small-sized board and secondary list
First 10 less this permanent-magnetism linear motor secondary are used.
Furthermore, the quantity of secondary units 10 is two or more；Two or more secondary units 10 are along straight line
It is arranged in order, any two adjacent cooling ducts 121 are connected by connection component 30, by increasing the quantity of secondary units 10, are carried
Rise outside permanent-magnetism linear motor stroke.
Meanwhile, the permanent magnet 11 in above-described embodiment can include multistage permanent magnet using multisection type design, i.e. permanent magnet 11
Unit, the length of each permanent magnet unit can design comparison it is short, i.e., same magnetic pole is divided into multisection type, utilizes magnetic pole segmentation reduction
The method of loss, the internal vortex of permanent magnet 11 when can effectively reduce motor operation further suppresses permanent magnet 11 from source and generated heat.
Simultaneously because the volume of permanent magnet 11 reduces, its difficulty manufactured can also reduce therewith, further have compressed cost.
As Figure 7-8, it is preferred that connection component 30 includes two jointings 31 and connecting tube 32, connection component 30
Two connectors are arranged at two adjacent apertures of two adjacent cooling ducts 121 in removably mode respectively；Each jointing 31
Connected with cooling duct 121；The two ends of the connecting tube 32 of connection component 30 correspond to sealing and are plugged in the connection component 30 respectively
Two jointings 31 on, and connection component 30 connecting tube 32 connect the connection component 30 two jointings 31, i.e., it is same
In the jointing 31 of connecting tube 32 and two of connection component 30, connecting tube 32 connects two jointings 31；Using two jointings
31 and the mode that coordinates of connecting tube 32, and jointing 31 removably installs, and can arbitrarily select secondary units 10
Quantity, outside permanent-magnetism linear motor stroke is lifted by constantly splicing；Furthermore, the connected mode is simple.
Internal thread is offered at two openings of cooling duct 121, the two ends of cooling duct 121 offer internal thread,
The random increase of the quantity of secondary units 10 can be achieved, and jointing 31 offers the external screw thread 311 with internal thread threaded,
It is simple easily to realize by way of screw thread is spirally connected.
In order to prevent from being passed through during cooling agent, cooling agent is excessive, and connecting tube 32 is plugged in position and the connection of jointing 31
Be provided between joint 31 sealing ring 33, i.e. sealing ring 33 be plugged in respectively with connecting tube 32 position of jointing 31 outer wall and
The inwall of jointing 31 fits, and realizes being tightly connected between the two, sealing property is reliable.Furthermore, it is connected with joint
Connecting tube 32 is designed using non-threaded, does not need spanner to tighten when installing connecting tube 32, it is only necessary to free-hand to patch.
The two ends of connecting tube 32 are protruding with positive stop lug boss 321, and positive stop lug boss 321 is formed with confined planes 3211, confined planes
3211 offset with corresponding jointing 31 close to the end face of connecting tube 32 is touched, and the limit of connecting tube 32 is realized by confined planes 3211
Position；Furthermore, even if during free-hand grafting not by joint insertion in place, when two installing plates 12 are installed into the position mutually supported and touched,
Connecting tube 32 also therewith in place, increases substantially installation effectiveness.
Preferably, permanent magnet 11 is fixed on installing plate 12 by viscose.
In above-described embodiment, due to having used refrigerant to force cooling, it is possible that surfusion.That is refrigerant temperature mistake
Low, the steam in liquefied air causes the quenching of permanent magnet 11 solidifying water occur, influences viscose stability.For reduction surfusion pair
The influence of viscose, as shown in fig. 6, further, the secondary embedding for also including wrapping the outer surface of permanent magnet 11 of permanent-magnetism linear motor
Glue-line 40.When surfusion occurs, the steam in air is condensed out, but because permanent magnet 11 is wrapped by embedding glue-line 40
Wrap up in, solidifying water can not contact permanent magnet 11, thus not produce influence on viscose.In addition, embedding glue-line 40 play by permanent magnet 11 with
The effect of external world's isolation, under the operating mode that the outside chip of board 50 and cutting fluid flash, embedding glue-line 40 can effectively extend forever
The life-span of magnet 11.
Or, in order to reduce influence of the viscose failure to the secondary normal operation of this permanent-magnetism linear motor, as shown in figure 4, entering
One step, neck 123 is offered on installing plate 12, permanent magnet 11 is installed in neck 123, is installed using neck 123, is utilized card
The cell wall of groove 123 offsets the magnetic attraction suffered by permanent magnet 11.Even if now occurring in that viscose fails, permanent magnet 11 can be stuck in
In neck 123, without being sucked away.Secondly, in the secondary manufacturing process of this permanent-magnetism linear motor, viscose bonded permanent magnet is used
, it is necessary to be aided with other positioning tools during body 11, to ensure that the gluing position of permanent magnet 11 is correct.The neck 123 of the design can be with
Attachment rail is provided when permanent magnet 11 is installed, without extra frock, the secondary production efficiency of this permanent-magnetism linear motor can be improved.
Further, neck 123 is in dovetail shaped, and swallow-tailed neck 123 realizes the effect blocked by skew wall.
Offered on installing plate 12 and deposit glue groove 122, viscose, which is filled in, to be deposited in glue groove 122.It can prevent before viscose does not solidify
Flowing everywhere.
As shown in figure 5, on the basis of rational preliminary design and parameter optimization, by permanent magnet 11 in motor operation direction
(x-ray direction as shown in Figure 5) one angle of upper deflecting (angle Y as shown in Figure 5), reduction can be played using inclined magnetic pole
The force oscillation rate of the catastrophe in magnetic field, further reduction linear electric motors.Preventing and treating noise and the knife mark that shakes.
And in order to further prevent the heat of installing plate 12 from being shed from bottom, filling with insulation material can be gone out in air gap 20.
Above-mentioned embodiment is only the preferred embodiment of the present invention, it is impossible to limit the scope of protection of the invention with this,
The change and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed scope.
Claims (11)
1. a kind of permanent-magnetism linear motor is secondary, it is characterised in that：Including at least one secondary units, the secondary units are included forever
Magnet and installing plate, the permanent magnet are arranged on the installing plate；Installing plate bottom indent for outside board
Air gap is formed between surface；The both sides of the installing plate are offered through the cooling duct of the installing plate opposite end.
2. permanent-magnetism linear motor as claimed in claim 1 is secondary, it is characterised in that：The secondary units quantity is two or two
More than individual；Two or more secondary units are arranged in order along straight line, and any two adjacent cooling ducts pass through even
Connected components are connected.
3. permanent-magnetism linear motor as claimed in claim 2 is secondary, it is characterised in that：The connection component includes two jointings
And connecting tube, two connectors of the connection component are respectively in removably mode installed in the two of the two adjacent cooling ducts
At adjacent apertures；Each jointing is connected with the cooling duct；The two ends of the connecting tube of the connection component
Sealing is corresponded to respectively to be plugged in described in the two of the connection component on jointing, and the connecting tube connection of the connection component
Jointing described in the two of the connection component.
4. permanent-magnetism linear motor as claimed in claim 3 is secondary, it is characterised in that：Opened at two openings of the cooling duct
Provided with internal thread, the jointing offers the external screw thread with the internal thread threaded.
5. permanent-magnetism linear motor as claimed in claim 3 is secondary, it is characterised in that：The connecting tube is plugged in described connect
Sealing ring is provided between the position of head and the jointing.
6. permanent-magnetism linear motor as claimed in claim 3 is secondary, it is characterised in that：Protrude limited in the two ends of the connecting tube
Position boss, the positive stop lug boss is formed with confined planes, and the confined planes are with the corresponding jointing close to the connecting tube
End face offset and touch.
7. permanent-magnetism linear motor as claimed in claim 1 is secondary, it is characterised in that：The permanent magnet is fixed on institute by viscose
State on installing plate.
8. permanent-magnetism linear motor as claimed in claim 7 is secondary, it is characterised in that；Offered on the installing plate and deposit glue groove,
The viscose is filled in described deposit in glue groove.
9. permanent-magnetism linear motor as claimed in claim 7 is secondary, it is characterised in that；The permanent-magnetism linear motor secondary also includes
Wrap the embedding glue-line of the permanent magnetism external surface.
10. permanent-magnetism linear motor as claimed in claim 7 is secondary, it is characterised in that：Neck, institute are offered on the installing plate
Permanent magnet is stated to be installed in the neck.
11. permanent-magnetism linear motor as claimed in claim 10 is secondary, it is characterised in that：The neck is in dovetail shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710401783.8A CN107147269A (en) | 2017-05-31 | 2017-05-31 | A kind of permanent-magnetism linear motor is secondary |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710401783.8A CN107147269A (en) | 2017-05-31 | 2017-05-31 | A kind of permanent-magnetism linear motor is secondary |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107147269A true CN107147269A (en) | 2017-09-08 |
Family
ID=59780954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710401783.8A Pending CN107147269A (en) | 2017-05-31 | 2017-05-31 | A kind of permanent-magnetism linear motor is secondary |
Country Status (1)
| Country | Link |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107910977A (en) * | 2017-11-09 | 2018-04-13 | 广州市昊志机电股份有限公司 | A kind of linear electric motor primary component of band isolation cooling structure |
| CN108054885A (en) * | 2017-11-15 | 2018-05-18 | 广州市昊志机电股份有限公司 | The magnet steel installation equipment and magnet steel fitting machine of a kind of linear motor |
| CN109038887A (en) * | 2018-06-22 | 2018-12-18 | 湖南大学 | A kind of permanent magnet motor secondary units and permanent magnet motor are secondary |
| CN111687680A (en) * | 2020-05-26 | 2020-09-22 | 广州市昊志机电股份有限公司 | Linear motor secondary cooling device and machine tool |
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| JPH1023735A (en) * | 1996-07-05 | 1998-01-23 | Nippon Seiko Kk | Linear motor |
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| US20040164622A1 (en) * | 2001-06-28 | 2004-08-26 | Thomas Hoppe | Secondary part for linear motor with a cooling system |
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| US20080246350A1 (en) * | 2005-09-26 | 2008-10-09 | Siemens Aktiengesellsachaft | Secondary Part of a Linear Electrical Machine, and Method for its Production |
| US20140103749A1 (en) * | 2012-10-11 | 2014-04-17 | Hiwin Mikrosystem Corp. | Linear motor cooling mechanism |
| CN206865334U (en) * | 2017-05-31 | 2018-01-09 | 广州市昊志机电股份有限公司 | A kind of permanent-magnetism linear motor is secondary |
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2017
- 2017-05-31 CN CN201710401783.8A patent/CN107147269A/en active Pending
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| JPH1023735A (en) * | 1996-07-05 | 1998-01-23 | Nippon Seiko Kk | Linear motor |
| JP2000217334A (en) * | 1999-01-25 | 2000-08-04 | Yaskawa Electric Corp | Linear motor |
| US20040164622A1 (en) * | 2001-06-28 | 2004-08-26 | Thomas Hoppe | Secondary part for linear motor with a cooling system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107910977A (en) * | 2017-11-09 | 2018-04-13 | 广州市昊志机电股份有限公司 | A kind of linear electric motor primary component of band isolation cooling structure |
| CN107910977B (en) * | 2017-11-09 | 2024-02-27 | 广州市昊志机电股份有限公司 | Linear motor primary part with isolation cooling structure |
| CN108054885A (en) * | 2017-11-15 | 2018-05-18 | 广州市昊志机电股份有限公司 | The magnet steel installation equipment and magnet steel fitting machine of a kind of linear motor |
| CN109038887A (en) * | 2018-06-22 | 2018-12-18 | 湖南大学 | A kind of permanent magnet motor secondary units and permanent magnet motor are secondary |
| CN109038887B (en) * | 2018-06-22 | 2019-09-27 | 湖南大学 | A kind of permanent magnet motor secondary units and permanent magnet motor are secondary |
| CN111687680A (en) * | 2020-05-26 | 2020-09-22 | 广州市昊志机电股份有限公司 | Linear motor secondary cooling device and machine tool |
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