CN106130288A - High security magnetic-leakage preventing permagnetic synchronous motor - Google Patents
High security magnetic-leakage preventing permagnetic synchronous motor Download PDFInfo
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- CN106130288A CN106130288A CN201610748958.8A CN201610748958A CN106130288A CN 106130288 A CN106130288 A CN 106130288A CN 201610748958 A CN201610748958 A CN 201610748958A CN 106130288 A CN106130288 A CN 106130288A
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 24
- 230000035945 sensitivity Effects 0.000 claims abstract description 21
- 238000004804 winding Methods 0.000 claims abstract description 9
- 239000007787 solid Substances 0.000 claims description 25
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 230000002706 hydrostatic effect Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 239000000696 magnetic material Substances 0.000 claims 1
- 230000035699 permeability Effects 0.000 claims 1
- 230000005611 electricity Effects 0.000 abstract description 4
- 241000397426 Centroberyx lineatus Species 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002964 excitative effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/02—Details
-
- 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
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
- H02K1/30—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures using intermediate parts, e.g. spiders
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention discloses a kind of high security magnetic-leakage preventing permagnetic synchronous motor, its structure includes: field frame assembly, magnetic-leakage preventing rotor；Described field frame assembly includes: the assembling of support, stator core, stator coil, bearing, external fan, outer shroud, end cap and outer cooler；Described magnetic-leakage preventing rotor includes: rotating shaft, rotor core, winding, rotor end plates, hinged bolts；Described rotor core is some sector magnetic pole ferrum cores, described rotor end plates, hinged bolts all uses non-magnet material, there is articulation hole at rotor core two ends, described rotor end plates is fixed on the two ends of described rotor core by described hinged bolts, prevent leakage field, and in rotor end plates, also it is embedded with pressure sensitivity pad, the pressure sensitivity sheet that it is embedded in articulation hole constitutes pressure sensitivity system, pressure signal can be sent to the signal receiving device being loaded on support, so that when pole core centrifugal force exceedes preset security value, sent alarm by advertiser and cut off the electricity supply, farthest ensure the safety that motor runs.
Description
Technical field
The present invention relates to field of motor manufacturing, particularly relate to a kind of safety coefficient height and can effectively prevent the permanent magnetism of leakage field
Synchronous motor.
Background technology
On AC network, people are also used extensively by AC asynchronous motor to drag work mechanism.Alternating current asynchronous is electronic
Facility have the advantages such as simple in construction, reliable operation, life-span length, low cost, maintenance simplicity.But, with synchronous motor phase
Ratio, the generation of its rotating excitation field need to draw reactive power from electrical network, therefore efficiency is low, and power factor is low, and especially when underloading, this is big
Add greatly the loss of circuit and electrical network.For a long time, do not requiring the occasion of speed governing, such as blower fan, water pump, machine tool
In driving, asynchronous motor still occupies leading position, virtually have lost a large amount of electric energy, the birth of permasyn morot,
Overcoming the shortcoming with upper motor, three-phase permanent-magnetic synchronous motors is consistent with the stationary part of three phase asynchronism induction-motor,
Its main distinction is at rotor portion, and its rotor uses solid construction, substitutes electric shock magnetic magnetic pole with permanent magnet, simplifies structure,
Eliminate the slip ring of rotor, brush, it is achieved that brushless structure, reduce rotor volume；Eliminate excitation DC power supply, eliminate
Excitatory loss.But owing to problem that permanent-magnet synchronous motor rotor magnetic leakage factor is big inevitably causes the stray loss of motor
Cause greatly that the motor feels hot, exacerbate the temperature rise of motor, easily make the permanent magnet in rotor block produce non-reversible high-temperature loss of excitation, simultaneously
Owing to permanent-magnet synchronous motor rotor magnetic leakage factor is big, reduce permanent magnet material utilization rate.On the other hand, due to permanent magnet synchronous electric
The distinctive magnetic shielding structure of motivation makes mechanical strength and rigidity poor, and rotor sector solid magnetic pole is unshakable in one's determination easily to come off because of centrifugal force
Cause motor interruption of service so that the security reliability that motor runs is substantially reduced, and causes motor damage.
Summary of the invention
The present invention solves that existing permanent-magnet synchronous motor rotor assembly magnetic leakage factor is big, the stray loss causing motor is big
Make that the motor feels hot, permanent magnet material utilization rate is low, and rotor sector solid magnetic pole iron core easily causes electricity because centrifugal force comes off
The problem of machine interruption of service, it is provided that a kind of non-magnetic in rotor magnetic pole iron core both sides employing non-magnet material hinged bolts connection
Material rotors end plate is every the structure of magnetic.Present configuration includes: field frame assembly, magnetic-leakage preventing rotor；Described field frame assembly includes: machine
Seat, stator core, stator coil, bearing assemble, and described coil is embedded in stator core and is fixedly mounted in support；Described
Magnetic-leakage preventing rotor is loaded in described stator core, and its structure includes: rotating shaft, rotor core, winding, rotor end plates, articulation hole spiral shell
Bolt, pressure sensitivity pad, winding；Described winding is wound on described rotor core；Described rotor core is fixed in described rotating shaft, its
Including some fan-shaped solid magnetic pole iron cores, described rotor end plates, hinged bolts all use non-magnet material, and described sector is solid
There are some articulation holes at pole core two ends；Described rotor end plates is embedded with two described pressure sensitivity pads, two described pressure sensitivity pad phases
Axis hole for described rotor end plates center is centrosymmetric, and the corresponding fan-shaped solid magnetic pole iron core of each pressure sensitivity pad；
Some screw districts are had in described rotor end plates, the corresponding fan-shaped solid magnetic pole iron core in the most each screw district, use described articulation
Described rotor end plates is fixed in the articulation hole at described fan-shaped solid magnetic pole iron core two ends by hole bolt；Described pressure sensitivity pad fills
There is pressure sensor device；Described field frame assembly also includes external fan, outer shroud, end cap and outer cooler.
It is also preferred that the left the screw in described screw district has three floor, every layer of screw to be positioned on same circular arc, from paraxial hole to distal shaft hole
Quantity be respectively 1,3,4, totally 8, the screw institute in the middle of the screw district second row of the rotor end plates being wherein embedded with pressure sensitivity pad
In the articulation hole of corresponding fan-shaped solid magnetic pole iron core, the smooth side wall of nearly described axis hole is carved with dovetail groove, described swallow
Tail connected in star is built with pressure sensitive sheet.
It is also preferred that the left described pressure sensitive sheet is voltage inductance answer both diaphragms of material piece, hydrostatic sensor any；
Its pressure sensor device corresponding respectively is piezoelectric transducer, hydrostatic sensor.
It is also preferred that the left described pressure sensitive sheet is voltage inductance, to answer material piece, described pressure sensor device be piezoelectric transducer, band
The nut lower surface of the hinged bolts that the articulation hole of dovetail groove is corresponding has copper facing, and described piezoelectric transducer is to this articulation hole
Loop is there is between bolt.
It is also preferred that the left the power supply of described pressure sensor device is built-in lithium battery or closing coil.
It is also preferred that the left described non-magnet material is copper, aluminum or rustless steel.
It is also preferred that the left also include automatic overvoltage power off device, described automatic overvoltage power off device includes signal receiving device, control
Device processed, relay；Described signal receiving device is loaded on described support, can receive the pressure that described pressure sensor device sends
Signal, when the pressure signal received exceedes the rated value preset on described control device, continues described in control device controls
Electrical equipment cuts off motor and powers, to protect motor safety to run.
It is also preferred that the left the method determining rated value as claimed in claim 7, comprise the following steps:
S1. manufacture on the circular dies consistent with described articulation hole pore size and its wall and have and described dovetail channel shape
Shape groove of the same size；
Fixation pressure sensing chip in the groove in mould the most in step sl, and by pressure sensitive sheet and pressure sensor device
Connect, and by external for pressure sensor device described signal receiving device；
S3. with the inwall pressurization of hydraulic press circular dies in described step S1, the pressing mold of described hydraulic press is only with described
Pressure sensitive sheet completely attaches to, and stops adding when the pressure that hydraulic press applies is equal to the permitting stress of described hinged bolts
Pressure, and record the most described rated value of force value that described signal receiving device shows；Described pressure is to be applied by hydraulic press
Pressure and the pressing mold of hydraulic press and the squish area of dovetail channel calculated.
Principle and effect: permanent-magnet steel is sealed by the rotor end plates of non-magnet material and non-magnet material hinged bolts completely
Close in rotor block, the substantially the same pcrmeability with vacuum of pcrmeability of non-magnet material so that the leakage field at rotor block two ends
The least, that permanent-magnet steel provides to the external magnetic circuit main flux overwhelming majority linkage armature winding, the utilization rate of permanent-magnet steel is carried
Height, achieves good magnetism isolating effect.Meanwhile, according to the rotor sector solid magnetic pole centrifugal force when synchronizing motors unshakable in one's determination
Size, by Strength co-mputation design rotor end plates thickness and hinged bolts diameter so that whole rotor forms one, improves
The strength and stiffness of permanent magnet machine rotor assembly, it is to avoid rotor sector solid magnetic pole iron core easily causes electricity because centrifugal force comes off
Machine interruption of service, and have dovetail channel at articulation hole sidewall, and pressure sensitive device is fixed wherein, and to pressure sensitivity pad
Pressure sensor device in sheet sends signal so that whole system can monitor in solid magnetic pole hinged bolts in real time by shearing force
Situation, and its by shearing force reach preset rated value time, by automatic overvoltage power off device automatically cutting off power source, improve electricity
The security reliability that machine runs, it is to avoid cause motor damage.
Accompanying drawing explanation
Fig. 1 is magnetic-leakage preventing rotor the first visual angle of the present invention schematic diagram.
Fig. 2 is rotor end plates structural representation of the present invention.
Fig. 3 is the present invention cross sectional representation with the articulation hole of swallow-tail form.
Fig. 4 is present configuration schematic diagram.
Detailed description of the invention
Embodiment one
As shown in Figure 1, Figure 2, Figure 3 shows, present configuration includes: field frame assembly, magnetic-leakage preventing rotor 45；Described field frame assembly includes:
Support 46, stator core 44, stator coil, bearing assemble, in described stator coil is embedded in stator core 44 and fixed installation
In support 46；Described magnetic-leakage preventing rotor 45 includes: rotor core 13, rotating shaft 11, rotor end plates 12, hinged bolts 14, pressure
Sense pad 23, winding；Described winding is wound on described rotor core 13；Described rotor core 13 is fixed on described rotating shaft 11
On, it includes 4 pieces of fan-shaped solid magnetic pole iron cores, and described rotor end plates 11, hinged bolts 14 all use non-magnet material, described
There are some articulation holes 15 at fan-shaped solid magnetic pole iron core two ends；Described rotor end plates 12 is embedded with two described pressure sensitivity pads 23, two
Described pressure sensitivity pad 23 is centrosymmetric relative to the axis hole at described rotor end plates 12 center, and 23 correspondences one of each pressure sensitivity pad
Individual fan-shaped solid magnetic pole iron core；Having some screw districts in described rotor end plates 12, the corresponding sector in the most each screw district is real
Heart pole core, is fixed on described fan-shaped solid magnetic pole iron core two ends with described hinged bolts 14 by described rotor end plates 12
In articulation hole 15；Equipped with pressure sensor device 22 in described pressure sensitivity pad 23；Described field frame assembly also includes external fan 43, exogenous wind
Fan cover 32, end cap and outer cooler 41, outer cooler can be condensing tube, it would however also be possible to employ recirculated cooling water.
More specifically, the screw in described screw district has three floor, every layer of screw to be positioned on same circular arc, from paraxial hole to far
The quantity of axis hole is respectively 1,3,4, totally 8, in the middle of the screw district second row of the rotor end plates 12 being wherein embedded with pressure sensitivity pad 23
The fan-shaped solid magnetic pole iron core corresponding to screw 21 articulation hole 32 in, the smooth side wall of nearly described axis hole is carved with swallow-tail form
Groove 31, described dovetail groove 31 also should include hard implant built with pressure sensitive sheet, pressure sensitive sheet here,
To make pressure sensitive sheet be close to articulation hole 32 inwall, make dynamometry more accurate.
More specifically, described pressure sensitive sheet is that voltage inductance answers material piece, and described pressure sensor device 22 passes for piezoelectricity
Sensor, the nut lower surface of the hinged bolts of articulation hole 32 correspondence of band dovetail groove 31 has copper facing, described piezoelectric sensing
Loop 24 is there is in device 22 between this hinged bolts.
More specifically, the power supply of described pressure sensor device 22 is built-in lithium battery or closing coil.
More specifically, described non-magnet material is copper, aluminum or rustless steel.
More specifically, also include that automatic overvoltage power off device, described automatic overvoltage power off device include that signal receives dress
Put 49, control device 47, relay 48；Described signal receiving device 49 is loaded on described support, can receive described pressure sensing
The pressure signal that device 22 sends, when the pressure signal received exceedes the rated value preset on described control device 47, by
Control device 47 to control described relay 48 and cut off motor and power, to protect motor safety to run.
Embodiment two
The three-phase permanent-magnetic synchronous motors manufactured based on the present invention, rated power 500kw, rated voltage 6000v, rated current
51.6A, frequency 50HZ, rotating speed 1000 revs/min.Rotor sector solid magnetic pole iron core external diameter Φ 500mm, the fan-shaped solid magnetic of rotor
Internal diameter (magnetic shield external diameter) Φ 280mm, core length 590mm extremely unshakable in one's determination.
Rotor end plates uses non-magnet material rustless steel, thickness 15mm, and hinged bolts uses non-magnet material rustless steel,
Threaded portion M24, articulation hole smooth part Φ 25mm.
Rotor core two ends end plate and hinged bolts:
(1), material be 304 rustless steels, end plate thickness 15mm, hinged bolts smooth part Φ 25mm, quantity 8.304 is stainless
Steel material allowable stress [σ]=137.6MP, permitting stress [τ]=85MP, permissible compression stress [σ y]=150MP.
(2), calculation and check:
A. every pole iron core position of centre of gravity:
RZ=38.2(R3-r3) sin α/(R2-r2) α=191.15mm
In formula: the rotor sector magnetic pole iron core position of centre of gravity of RZ-------every pole；
R--------every pole rotor sector magnetic pole iron core exradius；
R--------every pole rotor sector magnetic pole iron core inner circle (sleeve) radius；
α-------sector center of circle half-angle.
B. every pole iron core centrifugal force:
F=Mv2/RZ=0.00112M RZ nN2=22032.3=216060.3N
In formula: the rotor sector magnetic pole iron core centrifugal force of F--------every pole；
M--------every pole rotor sector magnetic pole iron core weight；
V-------position of centre of gravity linear velocity；
NN--------motor (rotor) rotating speed
C. check hinged bolts shear strength:
τ=F/8A=F/8(π r2L)=55MP≤[τ]
--------hinged bolts shear strength in formula: τ；
The permitting stress of [τ]-----material；
The A--------hinged bolts section of shear；
RL--------hinged bolts smooth part radius.
D. check hinged bolts and end plate crushing strength:
σ=F/8A1=F/8(dt)=72 MP≤[σ y]
--------hinged bolts and end plate crushing strength in formula: σ；
The permissible compression stress of [σ y]-----material；
A1--------hinged bolts and end plate squish area；
D---------hinged bolts diameter；
T---------rotor end plates thickness.
Found out by above calculating, use 15mm thickness rotor end plates and 8 hinged bolts to connect, fully meet rotor
The requirement of sector magnetic pole iron core centrifugal force during work.
Embodiment two
The method determining the rated value preset in embodiment one, comprises the following steps:
S1. manufacture on the circular dies consistent with described articulation hole 32 pore size and its wall and have and described dovetail channel
The groove that 31 shape sizes are consistent；
Fixation pressure sensing chip in the groove in mould the most in step sl, and by pressure sensitive sheet and pressure sensor device
22 connect, and pressure sensor device 22 outer signal is received device 49；
S3. with inwall from hydraulic press to circular dies described in step S1 pressurize, the pressing mold of described hydraulic press only with described pressure
Sensing chip completely attaches to, and stops pressurization when the pressure that hydraulic press applies is equal to the permitting stress of described hinged bolts 14,
And record the most described rated value of force value of described signal receiving device 49 display；Described pressure is applied by hydraulic press
The pressing mold of pressure and hydraulic press is calculated with the squish area of dovetail channel 31.
These are only preferred embodiment of the present invention, therefore the scope that the present invention implements can not be limited according to this, i.e. according to the present invention
Equivalence change and the decoration that description is made, all should belong in the range of present invention covering.
Claims (8)
1. a high security magnetic-leakage preventing permagnetic synchronous motor, it is characterised in that: structure includes: field frame assembly, magnetic-leakage preventing rotor；
Described field frame assembly includes: support, stator core, stator coil, bearing assemble, and it is interior and solid that described coil is embedded in stator core
Dingan County is contained in support；Described magnetic-leakage preventing rotor is loaded in described stator core, and its structure includes: rotating shaft, rotor core, around
Group, rotor end plates, hinged bolts, pressure sensitivity pad, winding；Described winding is wound on described rotor core；Described rotor ferrum
Core is fixed in described rotating shaft, and it includes some fan-shaped solid magnetic pole iron cores, and described rotor end plates, hinged bolts all use non-
Permeability magnetic material, there are some articulation holes at described fan-shaped solid magnetic pole iron core two ends；Described rotor end plates is embedded with two described pressure sensitivity pads
Sheet, two described pressure sensitivity pads are centrosymmetric relative to the axis hole at described rotor end plates center, and each pressure sensitivity pad is corresponding
One fan-shaped solid magnetic pole iron core；Having some screw districts in described rotor end plates, the corresponding sector in the most each screw district is real
Heart pole core, is fixed on the articulation at described fan-shaped solid magnetic pole iron core two ends with described hinged bolts by described rotor end plates
In hole；Equipped with pressure sensor device in described pressure sensitivity pad；Described field frame assembly also include external fan, outer shroud, end cap and
Outer cooler.
High security magnetic-leakage preventing permagnetic synchronous motor the most according to claim 1, it is characterised in that: the screw in described screw district
Having three layers, every layer of screw is positioned on same circular arc, and the quantity from paraxial hole to distal shaft hole is respectively 1,3,4, totally 8, Qi Zhongqian
There is the articulation hole of the fan-shaped solid magnetic pole iron core corresponding to screw of the second row centre, screw district of the rotor end plates of pressure sensitivity pad
In, the smooth side wall of nearly described axis hole is carved with dovetail groove, described dovetail groove is built with pressure sensitive sheet.
High security magnetic-leakage preventing permagnetic synchronous motor the most according to claim 2, it is characterised in that: described pressure sensitive sheet is
Voltage inductance answers any of both diaphragms of material piece, hydrostatic sensor；Its pressure sensor device corresponding respectively is pressure
Sensing device, hydrostatic sensor.
High security magnetic-leakage preventing permagnetic synchronous motor the most according to claim 3, it is characterised in that: described pressure sensitive sheet is
Voltage inductance answers material piece, described pressure sensor device to be pressure sensor device, the articulation that the articulation hole of band dovetail groove is corresponding
The nut lower surface of hole bolt has copper facing, described pressure sensor device to there is loop between this hinged bolts.
High security magnetic-leakage preventing permagnetic synchronous motor the most according to claim 1, it is characterised in that: described pressure transducer
Power supply is built-in lithium battery or closing coil.
High security magnetic-leakage preventing permagnetic synchronous motor the most according to claim 1, it is characterised in that: described non-magnet material is
Copper, aluminum or rustless steel.
High security magnetic-leakage preventing permagnetic synchronous motor the most according to claim 3, it is characterised in that: also include that overvoltage is from dynamic circuit breaker
Electric installation, described automatic overvoltage power off device includes signal receiving device, controls device, relay；Described signal receiving device
It is loaded on described support, the pressure signal that described pressure sensor device sends can be received, exceed in institute at the pressure signal received
When stating the rated value controlling to preset on device, powered by controlling device control described relay cut-out motor, to protect motor to pacify
Row for the national games.
8. the method determining rated value as claimed in claim 7, it is characterised in that: comprise the following steps:
S1. manufacture on the circular dies consistent with described articulation hole pore size and its wall and have and described dovetail channel shape
Shape groove of the same size；
Fixation pressure sensing chip in the groove in mould the most in step sl, and by pressure sensitive sheet with pressure transducer even
Connect, and by external for pressure transducer described signal receiving device；
S3. with the inwall pressurization of hydraulic press circular dies in described step S1, the pressing mold of described hydraulic press is only with described
Pressure sensitive sheet completely attaches to, and stops adding when the pressure that hydraulic press applies is equal to the permitting stress of described hinged bolts
Pressure, and record the most described rated value of force value that described signal receiving device shows；Described pressure is to be applied by hydraulic press
Pressure and the pressing mold of hydraulic press and the squish area of dovetail channel calculated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610748958.8A CN106130288B (en) | 2016-08-30 | 2016-08-30 | High security magnetic-leakage preventing permanent magnet synchronous motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610748958.8A CN106130288B (en) | 2016-08-30 | 2016-08-30 | High security magnetic-leakage preventing permanent magnet synchronous motor |
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| Publication Number | Publication Date |
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| CN106130288A true CN106130288A (en) | 2016-11-16 |
| CN106130288B CN106130288B (en) | 2019-06-21 |
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| CN201610748958.8A Active CN106130288B (en) | 2016-08-30 | 2016-08-30 | High security magnetic-leakage preventing permanent magnet synchronous motor |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201263115Y (en) * | 2008-09-18 | 2009-06-24 | 李树国 | Rotor device of permanent magnet synchronous machine |
| JP2012023900A (en) * | 2010-07-15 | 2012-02-02 | Fuji Electric Co Ltd | Rotor of permanent magnetic type rotary machine |
| CN202210717U (en) * | 2011-09-29 | 2012-05-02 | 金进精密泵业制品(深圳)有限公司 | Rotor |
| CN203638932U (en) * | 2013-12-27 | 2014-06-11 | 沈阳蓝光永磁电机技术有限公司 | Solid core inner rotor type gearless permanent magnet synchronous tractor for villa elevator |
| CN206117453U (en) * | 2016-08-30 | 2017-04-19 | 徐延平 | High security leak protection magnetism PMSM |
-
2016
- 2016-08-30 CN CN201610748958.8A patent/CN106130288B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201263115Y (en) * | 2008-09-18 | 2009-06-24 | 李树国 | Rotor device of permanent magnet synchronous machine |
| JP2012023900A (en) * | 2010-07-15 | 2012-02-02 | Fuji Electric Co Ltd | Rotor of permanent magnetic type rotary machine |
| CN202210717U (en) * | 2011-09-29 | 2012-05-02 | 金进精密泵业制品(深圳)有限公司 | Rotor |
| CN203638932U (en) * | 2013-12-27 | 2014-06-11 | 沈阳蓝光永磁电机技术有限公司 | Solid core inner rotor type gearless permanent magnet synchronous tractor for villa elevator |
| CN206117453U (en) * | 2016-08-30 | 2017-04-19 | 徐延平 | High security leak protection magnetism PMSM |
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| Publication number | Publication date |
|---|---|
| CN106130288B (en) | 2019-06-21 |
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Effective date of registration: 20220211 Address after: 225700 North District of industrial concentration zone, Anfeng Town, Xinghua City, Taizhou City, Jiangsu Province Patentee after: Taizhou trillion Force Motor Co.,Ltd. Address before: 225700 North District of industrial concentration zone, Anfeng Town, Xinghua City, Taizhou City, Jiangsu Province Patentee before: Xu Yanping |
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