CN108320447A - Clamp device with warning function - Google Patents
Clamp device with warning function Download PDFInfo
- Publication number
- CN108320447A CN108320447A CN201810157593.0A CN201810157593A CN108320447A CN 108320447 A CN108320447 A CN 108320447A CN 201810157593 A CN201810157593 A CN 201810157593A CN 108320447 A CN108320447 A CN 108320447A
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- CN
- China
- Prior art keywords
- magnetic field
- coil
- bolt
- warning
- clamp device
- 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
- 238000004146 energy storage Methods 0.000 claims abstract description 22
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000004891 communication Methods 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000034303 cell budding Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/32—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover rotating at constant speed
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K35/00—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
- H02K35/04—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving coil systems and stationary magnets
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The present invention provides a kind of clamp device with warning function, it is characterised in that：Including bolt, the first magnetic field generator and pressure sensor, first magnetic field generator is mounted on the fixed pedestal of object to be tightened, bolt is in the magnetic field of the first magnetic field generator generation, pressure sensor is between bolt and object to be tightened, bolt is equipped with first coil, energy storage device and warning device, first coil is electrically connected with energy storage device, pressure sensor is electrically connected with processor input terminal, warning device is electrically connected with the output end of processor, and energy storage device is processor, pressure sensor and warning device power supply.It is charged for energy storage device using first coil, when processor is less than preset value by the signal that pressure sensor detects, control warning device sends out alarm signal.The present invention not only high degree of automation, simple in structure, passive reliable and highly practical, but also low manufacture cost, can eliminate the security risk of production equipment, ensure the safety that object to be tightened runs at high speed.
Description
Technical field
The present invention relates to a kind of machine components, and in particular to the clamp device with warning function.
Background technology
Important auxiliary machine of the pressure fan as coal-fired station, mostly uses greatly the axial fan of adjusting rotor blade,
Adjustment is adjusted using hydraulic pressure, and axial flow blower is driven by the execution machine outside wind turbine in regulation blade angle and adjusts driving device,
Draw fork that hydraulic mechanism is made to act after the adjustment, it is to adjust to draw fork to push the regulating mechanism moving blade angle of hub portion, rotary oil seal
It is the component being association of activity and inertia with the hinge of hydraulic mechanism.Rotary oil seal connection bolt is in the mistake for frequently adjusting movable vane in operation
It is easy loose or dislocation in journey, causes movable vane controlling mechanism off-the-line, seriously affects unit normal operation, or even cause production accident.
The bolt fixing method of existing pressure fan connecting interface is unreasonable, and shortage prevents the measure that bolt loosens, bolt from existing
Occur the hidden danger for easing out or being broken in high-speed rotation to be difficult to find at the scene, often the wind turbine leaf in the case where having no sign
Piece angle can not adjust, and caused equipment fault is stopped transport, and the labor intensity of operating personnel and maintenance personnel are larger, the operating of equipment
Rate and production efficiency are relatively low.In the prior art, there is unreliable machinery, battery short circuit, open circuit or electric power in autoalarm
The defects of exhausting causes the hidden danger that bolt eases out to be unable to automatic alarm, to cause production accident.For this purpose, providing one kind has
The clamp device of warning function, high safety and reliability can effectively solve the hidden danger that the bolt of existing pressure fan connecting interface eases out
It cannot find in time, frequently resulting in equipment fault influences production, is current those skilled in the art technical problem urgently to be resolved hurrily.
Invention content
Technical problem to be solved by the invention is to provide a kind of clamp device with warning function, security reliabilities
Height, the energy automatic alarm when hidden danger occurs loosening in bolt, eliminates the security risk of production equipment, and ensure normally to produce stablizes fortune
Row.
In order to solve the above technical problems, the technical solution adopted in the present invention is：Clamp device with warning function, packet
Bolt, the first magnetic field generator and pressure sensor are included, the first magnetic field generator is mounted on the fixed pedestal of object to be tightened, spiral shell
Bolt is in the magnetic field of the first magnetic field generator generation, and pressure sensor is between bolt and object to be tightened；
The bolt is equipped with first coil, energy storage device and warning device, and first coil is electrically connected with energy storage device, and pressure passes
Sensor is electrically connected with processor input terminal, and warning device is electrically connected with the output end of processor, and energy storage device is processor, pressure
Sensor and warning device power supply.
Further include the second magnetic field generator, it is to be tightened that the second magnetic field generator is mounted on corresponding bolt in preferred scheme
On object, the first coil in the main direction of the launch face bolt in the second magnetic field.
In preferred scheme, second magnetic field generator includes the electromagnet being electrically connected with the second coil, the second line
Circle is that electromagnet is powered.
In preferred scheme, the first magnetic field generator permanent magnet provides stable magnetic field for clamp device.
In preferred scheme, the pressure sensor is pressure-strain piece.
In preferred scheme, the energy storage device is capacitor.
In preferred scheme, the processor is microcontroller, has wireless communication function, can with remote terminal equipment into
Row communication connection.
In preferred scheme, the warning device includes buzzer or led warning lamps, makes a sound alarm or light report
It is alert.
In preferred scheme, the first coil includes two or more.
In preferred scheme, second coil or electromagnet include two or more.
The present invention provides the clamp device with warning function, and connecting interface replaces original M6 abnormity using M12 special-shaped screw
Screw enhances screw intensity, is that energy storage device charges using first coil cutting magnetic line using the above structure, when bolt and
When object to be tightened loosens, the signal that processor receives pressure sensor is less than preset value, and control warning device sends out report
It is alert, it realizes the automatic alarm of clamp device, emits changing magnetic field to first coil using the second magnetic field generator so that first
Coil generates induced current in the same direction and charges to energy storage device, is superimposed by dual sense electric current, is passive report in clamp device
The operation of alert system provides double shield, and object to be tightened artificially tears clamp device open when stopping operating or overhauling
Unload or replacement process in, false alarm will not be triggered, effectively avoid interfering.The present invention has high degree of automation, structure letter
The advantages that single, safe and reliable and highly practical, is not needed power supply and is changed to fastening pressure using strain-ga(u)ge transducer sensitive
Degree is high, overcome in the prior art warning device machinery is unreliable, battery short circuit, open circuit or the defects of power drain, can treat tight
Gu object run at high speed it is slight loosening give warning in advance, by security risk eliminate in budding state, avoid the damage for causing bigger or
Stopping accident effectively reduces the failure rate and maintenance cost of equipment, mitigates the labor intensity of operating personnel and maintenance personnel, enhancing
The security reliability that object to be tightened runs at high speed ensures daily production stable operation, is conducive to the economic benefit for improving enterprise.This
Outside, the present invention is especially suitable for the connections of object to be tightened between slewing in inconvenient external power supply or small space, using model
It encloses extensively.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and examples：
Fig. 1 is the subjective schematic diagram of the present invention；
Fig. 2 is the schematic top plan view of the present invention；
Fig. 3 is the scheme of installation of the present invention；
Fig. 4 is the circuit theory schematic diagram of the present invention；
Fig. 5 is the circuit theory schematic diagram of the second magnetic field generator in the present invention；
Fig. 6 is the control structure schematic diagram of the present invention；
In figure：Bolt 1, the first magnetic field generator 2, pressure sensor 3, fixed pedestal 4, first coil 5, energy storage device 6, processing
Device 7, warning device 8, the second magnetic field generator 9, the second coil 10, electromagnet 11, the first connecting tube 12, the second connecting tube 13,
Trigger switch K.
Specific implementation mode
In order that those skilled in the art will better understand the technical solution of the present invention, with reference to embodiment to this hair
Bright to be described in further detail, embodiment is merely to illustrate the present invention, is not limited to the scope of the present invention.
As in Fig. 1-6, there is the clamp device of warning function, including bolt 1, the first magnetic field generator 2 and pressure sensing
Device 3, the first magnetic field generator 2 are mounted on the fixed pedestal of object 4 to be tightened, and bolt 1 is in the generation of the first magnetic field generator 2
In magnetic field, for pressure sensor 3 between bolt 1 and object to be tightened 4, the bolt 1 is equipped with first coil 5, energy storage device 6
With warning device 8, first coil 5 is electrically connected with energy storage device 6, and pressure sensor 3 is electrically connected with 7 input terminal of processor, alarm
Device 8 is electrically connected with the output end of processor 7, and energy storage device 6 is that processor 7, pressure sensor 3 and warning device 8 are powered.It waits for
Fastener 4 includes the first connecting tube 12 and the second connecting tube 13, and bolt 1 is mounted on the first connecting tube 12 and the second connecting tube 13
In bolt hole.5 cutting magnetic line of first coil is driven using the first connecting tube 12 of rotation and the second connecting tube 13, generates induction
Electric current charges for energy storage device 6, and when bolt 1 is loosened with object 4 to be tightened, processor 7 receives the letter of pressure sensor
Number be less than preset value, control warning device 8 send out alarm, realize the automatic alarm of clamp device, the safety of production equipment is hidden
Suffer from and eliminating in budding state, avoid the damage for causing bigger or stopping accident, effectively reduces the failure rate and maintenance cost of equipment,
The labor intensity for mitigating operating personnel and maintenance personnel, improves the security reliability that object 4 to be tightened runs at high speed.In addition, waiting for tight
Gu object when stopping operating or overhauling, carries out in artificially dismounting or replacement process clamp device, will not trigger false alarm, effectively
It avoids interfering.
Further include the second magnetic field generator 9 in preferred scheme, the second magnetic field generator 9 is mounted on corresponding bolt 1 and waits for tightly
Gu on object 4, the first coil 5 in the main direction of the launch face bolt 1 in the second magnetic field.Pass through the second magnetic field generator 9 to first
Coil 5 emits changing magnetic field, and first coil 5 generates induced current in the same direction and charges for energy storage device 6, passes through dual sense electricity
Stream superposition, the operation for passive alarm system in clamp device provide double shield.
In preferred scheme, second magnetic field generator 9 includes the electromagnet 11 being electrically connected with the second coil 10, the
Two coil 10 is powered for electromagnet 11.The second coil 10 is driven to cut using the first connecting tube 12 of rotation and the second connecting tube 13
The magnetic line of force generates the induced current of variation, and the induced current of variation is by generating changing magnetic field, the magnetic of variation when electromagnet 11
The main direction of the launch face first coil 5 of field so that the magnetic flux of first coil 5 constantly changes, to generate induction in the same direction
Electric current charges for energy storage device 6.
In preferred scheme, 2 permanent magnet of the first magnetic field generator provides stable magnetic field for clamp device.Make
It obtains first coil 5 and magnetic flux occurs in rotary course and constantly changes for the second coil 10, it is that device is powered to generate induced current.
In preferred scheme, the pressure sensor 3 is pressure-strain piece, for real-time monitoring bolt 1 with it is to be tightened
Fastening pressure size between object 4, the trigger switch K as warning device.When the fastening pressure between bolt 1 and object to be tightened 4
Power is less than preset value, and processor 7 controls warning device and sends out alarm signal, realizes the automatic alarm of clamp device.
In preferred scheme, the energy storage device 6 is capacitor, stores electric energy caused by first coil 5, for alarm
Device 8 provides required electric energy.
In preferred scheme, the processor 7 is microcontroller, has wireless communication function, energy and remote terminal equipment
It is communicatively coupled.Microcontroller is integrated on a single die each functional component, simple, the small, power consumption with hardware configuration
Warning message is being sent to specified terminal device, is reminding teleworker by low and high reliability at the first time
First time carry out scene is checked.
In preferred scheme, the warning device 8 includes buzzer or led warning lamps, according to the actual needs at scene
Alarm or light alarm are made a sound, the alarm of dangerous working condition is sent out at the first time to improve the attention of staff, effectively solves
The problem of hidden danger that the bolt of certainly existing pressure fan connector eases out cannot be found in time, increases the safety of operating mode.
In preferred scheme, the first coil 5 includes two or more, and serial or parallel connection is carried out between multiple coils,
Required power supply is provided for device.
In preferred scheme, second coil 10 or electromagnet 11 include two or more, are carried out between multiple coils
Serial or parallel connection provides required power supply for electromagnet 11, and multiple electromagnet 11 provide required magnetic field intensity jointly.
The above embodiments are only the preferred technical solution of the present invention, and are not construed as the limitation for the present invention, this hair
Technical characteristic in the technical solution that bright protection domain should be recorded with claim, including the technical solution of claim record
Equivalents are protection domain.Equivalent replacement i.e. within this range is improved, also within protection scope of the present invention.
Claims (10)
1. the clamp device with warning function, it is characterised in that：Including bolt（1）, the first magnetic field generator（2）It is passed with pressure
Sensor（3）, the first magnetic field generator（2）Mounted on the fixed pedestal of object to be tightened（4）On, bolt（1）It is sent out in the first magnetic field
Raw device（2）In the magnetic field of generation, pressure sensor（3）Positioned at bolt（1）Between object to be tightened；
The bolt（1）Equipped with first coil（5）, energy storage device（6）And warning device（8）, first coil（5）It is filled with energy storage
It sets（6）Electrical connection, pressure sensor（3）With processor（7）Input terminal is electrically connected, warning device（8）With processor（7）Output
End electrical connection, energy storage device（6）For processor（7）, pressure sensor（3）And warning device（8）Power supply.
2. the clamp device according to claim 1 with warning function, it is characterized in that：It further include the second magnetic field generator
（9）, the second magnetic field generator（9）Mounted on corresponding bolt（1）On object to be tightened, the main direction of the launch face bolt in the second magnetic field
（1）In first coil（5）.
3. the clamp device according to claim 2 with warning function, it is characterized in that：Second magnetic field generator
（9）Including with the second coil（10）The electromagnet of electrical connection（11）, the second coil（10）For electromagnet（11）Power supply.
4. the clamp device according to claim 1 with warning function, it is characterized in that：First magnetic field generator
（2）Permanent magnet provides stable magnetic field for clamp device.
5. the clamp device according to claim 1 with warning function, it is characterized in that：The pressure sensor（3）
For pressure-strain piece.
6. the clamp device according to claim 1 with warning function, it is characterized in that：The energy storage device（6）For
Capacitor.
7. the clamp device according to claim 1 with warning function, it is characterized in that：The processor（7）For list
Piece machine has wireless communication function, can be communicatively coupled with remote terminal equipment.
8. the clamp device according to claim 1 with warning function, it is characterized in that：The warning device（8）Packet
Buzzer or led warning lamps are included, alarm or light alarm are made a sound.
9. the clamp device according to claim 1 with warning function, it is characterized in that：The first coil（5）Packet
Include two or more.
10. the clamp device according to claim 3 with warning function, it is characterized in that：Second coil（10）
Or electromagnet（11）Including two or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810157593.0A CN108320447A (en) | 2018-02-24 | 2018-02-24 | Clamp device with warning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810157593.0A CN108320447A (en) | 2018-02-24 | 2018-02-24 | Clamp device with warning function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108320447A true CN108320447A (en) | 2018-07-24 |
Family
ID=62900389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810157593.0A Pending CN108320447A (en) | 2018-02-24 | 2018-02-24 | Clamp device with warning function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108320447A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108788288A (en) * | 2018-08-28 | 2018-11-13 | 燕山大学 | A kind of hydraulic nut automatic alarming device for loosening for circle shear |
| CN110236258A (en) * | 2019-06-04 | 2019-09-17 | 国网浙江省电力有限公司衢州供电公司 | A kind of power construction helmet with identity recognition function |
| CN110264653A (en) * | 2019-06-04 | 2019-09-20 | 国网浙江省电力有限公司衢州供电公司 | A kind of wear-type identification and early warning system of crossing the border based on Internet of Things |
| CN111946720A (en) * | 2020-08-07 | 2020-11-17 | 张虎 | Fixing bolt for automobile air conditioner |
| CN112713669A (en) * | 2020-12-22 | 2021-04-27 | 三峡大学 | Novel amorphous alloy switched reluctance motor stator vibration reduction structure and application method thereof |
| CN114883093A (en) * | 2022-07-07 | 2022-08-09 | 徐州派特控制技术有限公司 | Fuse is used in voltage transformer protection based on engineering machine tool electrical system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201824806U (en) * | 2010-10-09 | 2011-05-11 | 奇瑞汽车股份有限公司 | Warning system for loosening of automobile wheels |
| CN202117103U (en) * | 2011-05-25 | 2012-01-18 | 三一重机有限公司 | Loosening-resistant warning device for counter weight of excavator |
| CN102957282A (en) * | 2011-08-24 | 2013-03-06 | 柯东林 | Special brushed and brushless main motor of electric vehicle |
| CN203643159U (en) * | 2014-01-14 | 2014-06-11 | 重庆电子工程职业学院 | Machine tool bolt looseness detection device |
| CN205450552U (en) * | 2016-03-18 | 2016-08-10 | 新乡医学院 | Intelligence projecting apparatus fixing device with alarming function |
| CN205670357U (en) * | 2016-05-30 | 2016-11-02 | 北京天诚盛业科技有限公司 | A kind of ELECTRONIC SCREWS Apparatus and system |
| CN107261328A (en) * | 2017-04-28 | 2017-10-20 | 中国人民解放军第三军医大学第附属医院 | The special external charged coupled device of spinal cord stimulation trial |
| CN208044805U (en) * | 2018-02-24 | 2018-11-02 | 华润电力（宜昌）有限公司 | Clamp device with warning function |
-
2018
- 2018-02-24 CN CN201810157593.0A patent/CN108320447A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201824806U (en) * | 2010-10-09 | 2011-05-11 | 奇瑞汽车股份有限公司 | Warning system for loosening of automobile wheels |
| CN202117103U (en) * | 2011-05-25 | 2012-01-18 | 三一重机有限公司 | Loosening-resistant warning device for counter weight of excavator |
| CN102957282A (en) * | 2011-08-24 | 2013-03-06 | 柯东林 | Special brushed and brushless main motor of electric vehicle |
| CN203643159U (en) * | 2014-01-14 | 2014-06-11 | 重庆电子工程职业学院 | Machine tool bolt looseness detection device |
| CN205450552U (en) * | 2016-03-18 | 2016-08-10 | 新乡医学院 | Intelligence projecting apparatus fixing device with alarming function |
| CN205670357U (en) * | 2016-05-30 | 2016-11-02 | 北京天诚盛业科技有限公司 | A kind of ELECTRONIC SCREWS Apparatus and system |
| CN107261328A (en) * | 2017-04-28 | 2017-10-20 | 中国人民解放军第三军医大学第附属医院 | The special external charged coupled device of spinal cord stimulation trial |
| CN208044805U (en) * | 2018-02-24 | 2018-11-02 | 华润电力（宜昌）有限公司 | Clamp device with warning function |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108788288A (en) * | 2018-08-28 | 2018-11-13 | 燕山大学 | A kind of hydraulic nut automatic alarming device for loosening for circle shear |
| CN110236258A (en) * | 2019-06-04 | 2019-09-17 | 国网浙江省电力有限公司衢州供电公司 | A kind of power construction helmet with identity recognition function |
| CN110264653A (en) * | 2019-06-04 | 2019-09-20 | 国网浙江省电力有限公司衢州供电公司 | A kind of wear-type identification and early warning system of crossing the border based on Internet of Things |
| CN111946720A (en) * | 2020-08-07 | 2020-11-17 | 张虎 | Fixing bolt for automobile air conditioner |
| CN111946720B (en) * | 2020-08-07 | 2021-09-17 | 宁波先端轻量化科技有限公司 | Fixing bolt for automobile air conditioner |
| CN112713669A (en) * | 2020-12-22 | 2021-04-27 | 三峡大学 | Novel amorphous alloy switched reluctance motor stator vibration reduction structure and application method thereof |
| CN114883093A (en) * | 2022-07-07 | 2022-08-09 | 徐州派特控制技术有限公司 | Fuse is used in voltage transformer protection based on engineering machine tool electrical system |
| CN114883093B (en) * | 2022-07-07 | 2022-10-04 | 徐州派特控制技术有限公司 | Fuse is used in voltage transformer protection based on engineering machine tool electrical system |
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