CN108282074A - A kind of hybrid permanent torque permanent magnet eddy-current clutch of more conductor cylinders - Google Patents
A kind of hybrid permanent torque permanent magnet eddy-current clutch of more conductor cylinders Download PDFInfo
- Publication number
- CN108282074A CN108282074A CN201810080594.XA CN201810080594A CN108282074A CN 108282074 A CN108282074 A CN 108282074A CN 201810080594 A CN201810080594 A CN 201810080594A CN 108282074 A CN108282074 A CN 108282074A
- Authority
- CN
- China
- Prior art keywords
- rotor
- conductor
- permanent magnet
- shielding
- permanent
- 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
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/02—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type
- H02K49/04—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
- H02K49/043—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type with a radial airgap
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/02—Details of the magnetic circuit characterised by the magnetic material
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/10—Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
- H02K49/104—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element
- H02K49/106—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element with a radial air gap
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
Abstract
The invention discloses a kind of hybrid permanent torque permanent magnet eddy-current clutches of more conductor cylinders, belong to vortex transmission technical field.The clutch includes power input shaft, power output shaft, conductor rotor, shielding rotor, permanent magnet, p-m rotor, executing agency and fixing bracket.By control executing agency make p-m rotor axial movement change p-m rotor with shielding rotor or the engagement area of conductor rotor, it can be achieved that clutch power cut and engaged with permanent torque loads.The kind of drive of the clutch belongs to non-contact Flexible Transmission, can be effectively isolated vibration and impact, and reliability is high；The online of controllable brake force cuts off and engages and realize that the permanent torque loads of band start, and meets the requirement of the powerful devices such as mine belt conveyor.
Description
Technical field
The present invention relates to a kind of hybrid permanent torque permanent magnet eddy-current clutches of more conductor cylinders, belong to vortex transmission technology neck
Domain.
Background technology
Clutch is the important component in machine driven system, and traditional positive clutch is directly by motor and load
Separation or engagement cannot achieve speed governing tune square when in engagement state, and the vibration generated and shock loading are larger.
Eddy speed regulating device is a kind of contactless asynchronous transmission device based on vortex transmission principle, when motor and load
Between there are when relative motion, motion conduct cutting magnetic line generates vortex, is vortexed the induced field and original magnetic field phase interaction of generation
With realization power transmits.Eddy speed regulating utensil has isolation vibration, realizes soft start, prevents shock loading and allow certain installation
The advantages that error, two kinds of structures of corresponding disc type and cartridge type, respectively by adjusting air gap and adjusting engagement area come step-less adjustment speed
Degree and torque realize that motor is matched with the energy between the centrifugal load such as water pump, wind turbine, are widely used in coal, petrochemical industry, hair
The industries such as electricity and water process.Current eddy speed regulating device has the following disadvantages in certain application aspects：It 1) can only be in a certain range
The interior rotating speed for adjusting load, the power that cannot be completely cut through between motor and load transmit, i.e., cannot play the role of clutch.
2) when the powerful devices such as mine belt conveyor work, when needing the permanent torque loads of band to start, but starting between motor and load
Speed discrepancy it is very big, governor generate driving torque it is smaller, job requirement cannot be met.
In existing permanent magnetic transmission device, patent CN204967599U discloses a kind of integrated permanent-magnet adjustable speed variator,
The speed changer may be implemented to transmit torque and speed governing, but eddy-current loss is big when its high speed difference, cannot provide large torque, can only be driven
Torque and the relevant load of rotating speed, such as wind turbine and water pump, cannot apply in the equipment such as the ribbon conveyer of constant load.It is practical
Novel C N103915977B discloses a kind of dish type permanent-magnet speed governor, and conductor turntable is pushed and pulled along axis by adjusting Electric Actuator
To movement, change the coupling live part of conductor turntable and permanent magnetic rotation disc to change transmission torque between the two, but it is same
There are problems that constant load cannot be driven, and actuator axial force is larger.
Invention content
The present invention provides a kind of hybrid permanent torque permanent magnet eddy-current clutches of more conductor cylinders, when can realize different speed differences
Permanent torque drive, and power between motor and load can be completely cut through and transmitted, have many advantages, such as overload protection, vibration isolation, and
Electric motor starting electric current can be reduced.The hybrid permanent torque permanent magnet eddy-current clutch of the more conductor cylinders of the present invention and variable-frequency control technique phase
Than having many advantages, such as at low cost, easy care, reliability height and no-harmonic wave pollution.
The technical solution adopted by the present invention is a kind of hybrid permanent torque permanent magnet eddy-current clutch of more conductor cylinders, the clutch
Including outer rotor, internal rotor and regulating device.
Outer rotor includes power input shaft and conductor rotor；Internal rotor includes shielding rotor, permanent magnet, p-m rotor and moves
Power output shaft；Regulating device includes executing agency and fixing bracket.Conductor rotor by a variety of different conductivity conductor material system
At conductor rotor is connect with power input shaft；Shielding rotor is made of ferromagnetic material, shielding rotor and power output axis connection；
P-m rotor is slidably connected with power output shaft, and p-m rotor is connect with executing agency, so that permanent magnetism is turned by controlling executing agency
Son axial movement, executing agency are fixed on fixing bracket；Conductor rotor, shielding rotor and p-m rotor three are coaxially arranged；
By adjusting p-m rotor and shielding rotor or the engagement area of conductor rotor, the cut-out of clutch is realized and with permanent torque loads
Engagement.
When work, power input shaft drives rotating conductor rotor, so that p-m rotor is moved axially by controlling executing agency
It can get three kinds of working conditions：The first working condition：Power cut.When p-m rotor is engaged with shielding rotor, permanent magnet
Closed magnetic circuit is formed between shielding rotor, i.e., the magnetic line of force that permanent magnet is sent out is shielded by shielding rotor, and conductor rotor cannot produce
Raw vortex, then p-m rotor does not follow rotating conductor rotor, clutch to be in dissengaged positions；Second of working condition：High speed difference
Engagement.When p-m rotor is engaged with the low conductivity material part of conductor rotor, conductor rotor cuts the magnetic that permanent magnet is sent out
The line of force generates vortex, and vortex generates driving torque with p-m rotor interaction, at this time the speed difference of conductor rotor and p-m rotor
It is larger, larger driving torque can be generated；The third working condition：Low speed differential closes.With the increasing of the speed of p-m rotor
Greatly, the speed difference of p-m rotor and conductor rotor is gradually reduced, and makes the high conductivity material portion of p-m rotor and conductor rotor at this time
Divide engagement, more vortex can be generated under low speed difference, therefore remains to transmit into action edge with larger driving torque.
The conductor rotor composition material type is two or more, preferably two or three, meets practical work
The different demands of journey.
Cooling fin is arranged in the conductor rotor periphery, is forced with constant rotational speed under the drive of power input shaft
Wind-cooling heat dissipating or spray water-cooling.
The gap of 1mm-10mm is kept between the conductor rotor inner headed face and the p-m rotor periphery；Institute
The gap of 1mm-10mm is kept between the shielding rotor inner headed face and the p-m rotor periphery stated；
The permanent magnet has several to being nested on p-m rotor periphery in such a way that N, S are extremely alternate；
The type of drive of the executing agency can be electronic, pneumatically or hydraulically drive.
Compared with prior art, a kind of permanent torque permanent magnet eddy-current clutch proposed by the present invention can be used as etc. high-power
The transmission device of equipment.The clutch realizes the non-contact Flexible Transmission between motor and load, energy based on vortex transmission principle
It is enough effectively isolated vibration and impact, reliability is high.Realize that the online of power cuts between control motor and load by regulating device
Break and engage, improves production efficiency.It can start with permanent torque loads, meet the use of the powerful devices such as mine belt conveyor
It is required that.
Description of the drawings
Fig. 1 is the transmission scheme schematic diagram of general mine belt conveyor.
Driving torque and speed difference graph of relation when Fig. 2 is different conductor material.
Fig. 3 is the structural schematic diagram of the dissengaged positions of the embodiment of the present invention.
Fig. 4 is the structural schematic diagram of the high speed differential conjunction state of the embodiment of the present invention.
Fig. 5 is the structural schematic diagram of the low speed differential conjunction state of the embodiment of the present invention.
Fig. 6 is the different conductor combination of materials mode structural schematic diagram of another conductor rotor of the present invention.
In figure：1, the hybrid permanent torque permanent magnet eddy-current clutch of more conductor cylinders, 2, motor, 3, roller, 4, conveyer belt, 101,
Power input shaft, 102, power output shaft, 103, conductor rotor, 1031, conductor rotor A, 1032, conductor rotor B, 1033, lead
Body rotor C, 1034, cooling fin, 104, shielding rotor, 105, permanent magnet, 106, p-m rotor, 107, executing agency, 108, solid
Fixed rack.
Specific implementation mode
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
Referring to Fig. 1, biography of the hybrid permanent torque permanent magnet eddy-current clutch 1 of more conductor cylinders as general mine belt conveyor
Dynamic device, input terminal is connect by shaft coupling with the output end of motor 2, with speed n1Rotation, output end pass through shaft coupling and rolling
The input terminal connection of cylinder 3, with speed n2Non-contact Flexible Transmission, control 2 output end of motor and 3 input terminal of roller are realized in rotation
Power engagement and cut-out, be capable of the permanent torque loads of driving conveying belt 4.
The hybrid permanent torque permanent magnet eddy-current clutches of more conductor cylinders, including power input shaft 101, power output shaft 102, lead
Body rotor 103, shielding rotor 104, permanent magnet 105, p-m rotor 106, executing agency 107 and fixing bracket 108.
Conductor rotor 103 is connect with power input shaft 101,103 conductor rotor made of low-carbon steel material of conductor rotor
Conductor rotor B1032 made of A1031, red copper material and cooling fin 1034 form.Shielding rotor 104 and power output shaft 102
Connection, shielding rotor 104 are made of ferromagnetic material；Power output shaft 102 is equipped with spline, p-m rotor 106 and power output shaft
102 are slidably connected, and p-m rotor 106 is connect with executing agency 107, and executing agency 107 uses hydraulic driving mode, is fixed on
On fixed rack 108, p-m rotor 106 can be made to slide axially along power output shaft 102 by controlling executing agency 107；Permanent magnet
105 are nested in such a way that N, S are extremely alternate on the periphery of p-m rotor 106；Conductor rotor 103, shielding rotor 104 and forever
106 three of magnet rotor is coaxial；Adjust p-m rotor 106 and shielding rotor 104 or the engagement area of conductor rotor 103, Ke Yishi
Show the cut-out of clutch and is engaged with permanent torque loads.
High speed difference Δ n is according to driving torque when different materials and speed difference relation curve referring to Fig. 22When mild steel
Driving torque is larger, is in low speed difference Δ n1The driving torque of Shi Zitong is larger, therefore to conductor rotor made of mild steel
Conductor rotor B1032 made of A1031 and red copper material carries out structure size design, can obtain permanent-magnet eddy current driven by clutches
The graph of relation of torque and speed difference.
When work, power input shaft 101 drives conductor rotor 103 to rotate, and so that permanent magnetism is turned by controlling executing agency 107
106 axial movement of son can get three kinds of working conditions：1) power cut.Referring to Fig. 2, when p-m rotor 106 and shielding rotor 104
When engagement, closed magnetic circuit is formed between permanent magnet 105 and shielding rotor 104, i.e., the magnetic line of force that permanent magnet 105 is sent out is shielded
Rotor 104 shields, and the gap of 3mm, conductor rotor 103 are kept between 106 periphery of 104 inner headed face of shielding rotor and p-m rotor
Vortex cannot be generated, then p-m rotor 106 does not follow conductor rotor 103 to rotate, and clutch is in dissengaged positions；2) high speed differential
It closes.Referring to Fig. 3, when p-m rotor 106 is engaged with conductor rotor A1031 made of ferromagnetic material, conductor rotor 103 is cut forever
The magnetic line of force that magnet 105 is sent out generates vortex, and vortex generates driving force with the former magnetic field interaction that p-m rotor 106 generates
Square keeps the gap of 3mm between 106 periphery of 103 inner headed face of conductor rotor and p-m rotor, at this time conductor rotor 103 with forever
The speed difference of magnet rotor 106 is larger, and the conductivity of mild steel is relatively low, can generate larger driving torque at this time；3) low speed differential
It closes.Referring to Fig. 4, with the increase of the speed of p-m rotor 106, p-m rotor 106 and the speed difference of conductor rotor 103 gradually subtract
It is small, so that p-m rotor 106 is engaged with conductor rotor B1032 made of red copper material at this time, due to the conductivity higher of copper,
It can remain to transmit into action edge with larger driving torque in low speed difference.It will produce a part of kinetic energy damage in the course of work
Consumption, is distributed with form of thermal energy, and to improve heat dissipation performance, the periphery of conductor rotor 103 is arranged cooling fin 1034, increases
Heat dissipation area is carried out at the same time water cooling spraying cooling.
Fig. 6 is the different conductor combination of materials mode of another conductor rotor, including conductor rotor made of ferromagnetic material
Conductor rotor C1033 made of conductor rotor B1032 and brass material made of A1031, red copper material, the conductivity position of brass
Between mild steel and red copper, three kinds of combinations of materials can obtain more stably driving torque curve.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of hybrid permanent torque permanent magnet eddy-current clutch of more conductor cylinders, it is characterised in that：The clutch includes outer rotor, interior
Rotor and regulating device；
Outer rotor includes power input shaft and conductor rotor；Internal rotor includes that shielding rotor, permanent magnet, p-m rotor and power are defeated
Shaft；Regulating device includes executing agency and fixing bracket；Conductor rotor is made of the conductor material of a variety of different conductivity, leads
Body rotor is connect with power input shaft；Shielding rotor is made of ferromagnetic material, shielding rotor and power output axis connection；Permanent magnetism turns
Son is slidably connected with power output shaft, and p-m rotor is connect with executing agency, keeps p-m rotor axial by controlling executing agency
Mobile, executing agency is fixed on fixing bracket；Conductor rotor, shielding rotor and p-m rotor three are coaxially arranged；Pass through tune
P-m rotor and shielding rotor or the engagement area of conductor rotor are saved, realize the cut-out of clutch and is engaged with permanent torque loads.
2. the hybrid permanent torque permanent magnet eddy-current clutch of a kind of more conductor cylinders according to claim 1, it is characterised in that：Work
When making, power input shaft drives rotating conductor rotor, so that p-m rotor axial movement is can get three kinds by controlling executing agency
Working condition：The first working condition：Power cut；When p-m rotor is engaged with shielding rotor, permanent magnet and shielding rotor
Between form closed magnetic circuit, i.e., the magnetic line of force that permanent magnet is sent out is shielded by shielding rotor, and conductor rotor cannot generate vortex, then forever
Magnet rotor does not follow rotating conductor rotor, clutch to be in dissengaged positions；Second of working condition：High speed differential closes；Work as permanent magnetism
When rotor is engaged with the low conductivity material part of conductor rotor, the magnetic line of force that conductor rotor cutting permanent magnet is sent out generates whirlpool
Stream, vortex generate driving torque with p-m rotor interaction, and conductor rotor and the speed difference of p-m rotor are larger at this time, can produce
Raw larger driving torque；The third working condition：Low speed differential closes；With the increase of the speed of p-m rotor, p-m rotor
It is gradually reduced with the speed difference of conductor rotor, so that p-m rotor is engaged with the high conductivity material part of conductor rotor at this time, low
More vortex can be generated under speed difference, therefore remains to transmit into action edge with larger driving torque.
3. the hybrid permanent torque permanent magnet eddy-current clutch of a kind of more conductor cylinders according to claim 1, it is characterised in that：Institute
State conductor rotor periphery setting cooling fin, under the drive of power input shaft with constant rotational speed carry out air blast cooling heat dissipation or
Spray water-cooling.
4. the hybrid permanent torque permanent magnet eddy-current clutch of a kind of more conductor cylinders according to claim 1, it is characterised in that：Institute
The gap of 1mm-10mm is kept between the conductor rotor inner headed face and the p-m rotor periphery stated；The shielding rotor
The gap of 1mm-10mm is kept between inner headed face and the p-m rotor periphery.
5. the hybrid permanent torque permanent magnet eddy-current clutch of a kind of more conductor cylinders according to claim 1, it is characterised in that：Institute
The permanent magnet stated has several to being nested on p-m rotor periphery in such a way that N, S are extremely alternate.
6. the hybrid permanent torque permanent magnet eddy-current clutch of a kind of more conductor cylinders according to claim 1, it is characterised in that：Institute
The type of drive of the executing agency stated is electronic, pneumatically or hydraulically drives.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810080594.XA CN108282074A (en) | 2018-01-28 | 2018-01-28 | A kind of hybrid permanent torque permanent magnet eddy-current clutch of more conductor cylinders |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810080594.XA CN108282074A (en) | 2018-01-28 | 2018-01-28 | A kind of hybrid permanent torque permanent magnet eddy-current clutch of more conductor cylinders |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108282074A true CN108282074A (en) | 2018-07-13 |
Family
ID=62805392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810080594.XA Pending CN108282074A (en) | 2018-01-28 | 2018-01-28 | A kind of hybrid permanent torque permanent magnet eddy-current clutch of more conductor cylinders |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108282074A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112615526A (en) * | 2020-12-28 | 2021-04-06 | 诸暨和创磁电科技有限公司 | Vertical permanent magnet speed regulator |
| GB2607870A (en) * | 2021-06-07 | 2022-12-21 | Magnomatics Ltd | Magnetically geared apparatus and rotor |
| TWI819610B (en) * | 2021-05-21 | 2023-10-21 | 羅伯特 Ｍ 海任 | Device for capturing unbalanced torque in a rotating system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0416413A1 (en) * | 1989-08-28 | 1991-03-13 | Isuzu Motors Limited | Eddy current type brake system |
| CN101719716A (en) * | 2009-11-20 | 2010-06-02 | 北京工业大学 | Permanent-magnet slide type permanent-magnet liquid-cooled retarder |
| CN105553227A (en) * | 2016-02-06 | 2016-05-04 | 天津吉玄节能技术有限公司 | Axial movement magnetic shielding type permanent-magnet speed controller |
| CN205544878U (en) * | 2016-02-06 | 2016-08-31 | 天津吉玄节能技术有限公司 | Cartridge combination shielding formula permanent magnet speed regulation ware |
| CN106992657A (en) * | 2017-04-27 | 2017-07-28 | 天津吉玄节能技术股份有限公司 | One kind axial movement magnetic screen formula permanent-magnet speed governor |
| CN107465330A (en) * | 2017-09-18 | 2017-12-12 | 安徽沃弗电力科技有限公司 | One kind axial movement magnetic screen formula permanent-magnet speed governor |
-
2018
- 2018-01-28 CN CN201810080594.XA patent/CN108282074A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0416413A1 (en) * | 1989-08-28 | 1991-03-13 | Isuzu Motors Limited | Eddy current type brake system |
| CN101719716A (en) * | 2009-11-20 | 2010-06-02 | 北京工业大学 | Permanent-magnet slide type permanent-magnet liquid-cooled retarder |
| CN105553227A (en) * | 2016-02-06 | 2016-05-04 | 天津吉玄节能技术有限公司 | Axial movement magnetic shielding type permanent-magnet speed controller |
| CN205544878U (en) * | 2016-02-06 | 2016-08-31 | 天津吉玄节能技术有限公司 | Cartridge combination shielding formula permanent magnet speed regulation ware |
| CN106992657A (en) * | 2017-04-27 | 2017-07-28 | 天津吉玄节能技术股份有限公司 | One kind axial movement magnetic screen formula permanent-magnet speed governor |
| CN107465330A (en) * | 2017-09-18 | 2017-12-12 | 安徽沃弗电力科技有限公司 | One kind axial movement magnetic screen formula permanent-magnet speed governor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112615526A (en) * | 2020-12-28 | 2021-04-06 | 诸暨和创磁电科技有限公司 | Vertical permanent magnet speed regulator |
| TWI819610B (en) * | 2021-05-21 | 2023-10-21 | 羅伯特 Ｍ 海任 | Device for capturing unbalanced torque in a rotating system |
| GB2607870A (en) * | 2021-06-07 | 2022-12-21 | Magnomatics Ltd | Magnetically geared apparatus and rotor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108282074A (en) | A kind of hybrid permanent torque permanent magnet eddy-current clutch of more conductor cylinders | |
| CN103326538B (en) | Permanent magnet intelligent speed-regulating energy-saving device | |
| CN108631546A (en) | A kind of novel adjustable speed disc type asynchronous magnetic coupler | |
| CN103346659A (en) | Internal radiation ring type static speed-adjusting permanent magnetic coupling | |
| CN105720791B (en) | A kind of coil rotary electromagnetic eddy speed regulating device | |
| CN101949321B (en) | Double-flexible driven electromagnetic fan clutch for high-power and heavy type vehicle | |
| CN106395299A (en) | Novel speed regulating soft boot device and utilization method | |
| CN104967381A (en) | Electromagnetic coupling flexible speed adjusting device | |
| CN105790543B (en) | A kind of coil stationary type electromagnetic eddy governor | |
| CN103532341A (en) | Permanent magnetic eddy speed regulator capable of achieving fast magnetism regulation | |
| CN103036392A (en) | Speed-adjustable permanent magnet inductive worm and wormwheel transmission device | |
| CN108683320A (en) | A kind of asynchronous and synchronized mixes suitching type magnetic driver | |
| CN102157997B (en) | Permanent magnet governor with cooling fan cover | |
| CN205178835U (en) | Accuse angie type disk permanent -magnet coupling speed governor | |
| CN101783576A (en) | Permanent-magnet speed governor | |
| CN108110992B (en) | A kind of ring-like built-in type permanent-magnet eddy speed regulating device of translation stator | |
| CN203722457U (en) | Permanent magnet actuator with forced convection heat dissipating air-cooled hood | |
| CN107528445B (en) | Mixed excitation type eddy current speed regulator | |
| CN105896901A (en) | Packet-level cascade permanent magnet speed regulator | |
| CN103401396B (en) | Interior radiation ring type permanent magnet clutch | |
| CN204559363U (en) | A kind of packet concatenation formula permanent-magnet speed governor | |
| CN104811014A (en) | Permanent-magnet asynchronous speed-regulating device | |
| CN203872030U (en) | Output rotating speed-adjustable mining permanent magnet transmission device | |
| CN204652202U (en) | Permanent-magnetic energy-saving speed governing integrated electric motor | |
| CN203717835U (en) | Permanent magnet transmission device with function of heat dissipation through forced convection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180713 |