CN107911048A - Noise measuring formula energy consuming brake and application method - Google Patents
Noise measuring formula energy consuming brake and application method Download PDFInfo
- Publication number
- CN107911048A CN107911048A CN201810016848.1A CN201810016848A CN107911048A CN 107911048 A CN107911048 A CN 107911048A CN 201810016848 A CN201810016848 A CN 201810016848A CN 107911048 A CN107911048 A CN 107911048A
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- motor
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- 238000000034 method Methods 0.000 title claims description 9
- 230000005611 electricity Effects 0.000 claims description 15
- 238000012544 monitoring process Methods 0.000 claims description 4
- 239000003381 stabilizer Substances 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
- H02P3/18—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor
- H02P3/24—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor by applying dc to the motor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Stopping Of Electric Motors (AREA)
Abstract
The present invention proposes a kind of noise measuring formula energy consuming brake, it is characterised in that including：Motor, operation contactor KM1, dynamic braking contactor KM2, main circuit, energy-dissipating brake circuit, control circuit and noise detecting circuit；Motor is connected by main circuit with three-phase alternating-current supply, the break-make of the normally opened main contacts control main circuit of operation contactor KM1；Energy-dissipating brake circuit connects three-phase alternating-current supply and motor stator, and three-phase alternating current is converted into the direct current for making motor braking, the break-make of the normally opened main contacts control energy-dissipating brake circuit of dynamic braking contactor KM2 by vertoro TC；Noise detecting circuit includes being arranged on the noise transducer NS of motor side, and the prerequisite that energy-dissipating brake circuit can turn on is that noise transducer NS detects that motor operation noise is more than default noise threshold.Structure of the present invention simplifies, is of low cost, safety and stability, highly practical, market value is high.
Description
Technical field
The invention belongs to engineering electrical apparatus field, more particularly to a kind of noise measuring formula energy consuming brake and user
Method.
Background technology
Dynamic braking in the conventional electrical braking of engineering electrical alternating current generator equipment at present, through frequently with velocity sensor
Principle（Speed principle）Control or the time relay（Time principle）Control etc..Using the principle of velocity sensor（Speed
Principle）Control：The installation speed sensor on the motor shaft of alternating current generator equipment is needed, the installation of contact velocity sensor is tired
Difficulty, occupied space is big, and equipment is heavy；Contactless velocity sensor mounting and adjusting is difficult, and will ensure in operational process
Speed accurately detection etc., price is also costly.The time relay（Time principle）Control：In different load running environment
In, it is rationally accurately also different the time required to braking, if time setting deficiency, do not reach the optimum efficiency of dynamic braking；If
Time setting is too long, increases the unnecessary run time of energy consumption braking system, consumes system equipment electric energy.
The content of the invention
In view of the shortcomings of the prior art and blank, the present invention use following technical scheme：
A kind of noise measuring formula energy consuming brake, it is characterised in that including：Motor, operation contactor KM1, dynamic braking connect
Tentaculum KM2, main circuit, energy-dissipating brake circuit, control circuit and noise detecting circuit；The motor is intersecting by main circuit and three
Galvanic electricity source connects, the break-make of the normally opened main contacts control main circuit of the operation contactor KM1；The energy-dissipating brake circuit connection
Three-phase alternating current, the direct current for making motor braking, institute are converted into by vertoro TC by three-phase alternating-current supply and motor stator
State the break-make of the normally opened main contacts control energy-dissipating brake circuit of dynamic braking contactor KM2；The control circuit controls the fortune
The normally opened main contacts of the normally opened main contacts of row contactor KM1 and the dynamic braking contactor KM2 realize interlocking, make main circuit and
Energy-dissipating brake circuit is not also turned on；The noise detecting circuit includes being arranged on the noise transducer NS of motor side, described
The prerequisite that energy-dissipating brake circuit can turn on is that the noise transducer NS detects motor operation noise more than default
Noise threshold.
Preferably, the control circuit controls the normally opened main contacts of the operation contactor KM1 and the dynamic braking to connect
The interlocking of the normally opened main contacts of tentaculum KM2 passes through the normally opened contact of the dynamic braking contactor KM2 to connect in control circuit, operation
The normally opened contact of the normally-closed contact of contactor KM1 and the operation contactor KM1 of series connection, the normally closed of dynamic braking contactor KM2 are touched
Point is realized；The energy-dissipating brake circuit includes relay KA, when the noise transducer NS detects that motor operation noise is more than
During default noise threshold, the relay KA dead electricity, the normally-closed contact of the relay KA is connected on dynamic braking contactor
In the series circuit of the normally opened contact of KM2 and the normally-closed contact of operation contactor KM1.
Preferably, fuse FU1 and electrothermal relay FR provides short circuit and overload protection for main circuit；Fuse FU1 is energy
Consume braking circuit and short-circuit protection is provided, current limliting regulation resistance R3 is connected in energy-dissipating brake circuit；The control circuit access three
Cross streams power supply, short circuit and overload protection are provided by fuse FU2 and electrothermal relay FR.
Preferably, in the noise detecting circuit, noise transducer NS connects operational amplifier reverse input end, and computing is put
Big device positive input voltage is added in the voltage stabilizing value at voltage-stabiliser tube both ends for DC power supply after resistance R1 partial pressures, and operational amplifier is defeated
Outlet connects the base stage of triode VT through resistance R2, and DC power anode meets triode VT through diode VD and relay KA in parallel
Collector；DC power cathode connects the emitter of triode VT.
Preferably, the control circuit includes button SB1 and button SB2；The button SB1 control operation contactors KM1
Normally opened contact closure, it is electric for obtaining operation contactor KM1；The normally opened contact of the button SB2 control operation contactors KM1
Disconnected with the series circuit that the normally-closed contact of dynamic braking contactor KM2 is formed, and control that dynamic braking contactor KM2's is normally opened
Contact closure, when the normally-closed contact closure of relay KA, for making operation contactor KM1 dead electricity, dynamic braking contactor KM2
Obtain electric.
Preferably, when the button SB1 is pressed, the normally opened main contacts of operation contactor KM1 and control electricity in main circuit
The normally opened main contacts of operation contactor KM1, which closes, in road realizes self-locking.
Preferably, when the button SB2 is pressed, and the normally-closed contact of relay KA closes, energy in energy-dissipating brake circuit
The normally opened contact of dynamic braking contactor KM2 closes realization in the normally opened main contacts and control circuit of consumption braking contactor KM2
Self-locking.
And the application method of noise measuring formula energy consuming brake preferred solution of the present invention, it is characterised in that including with
Lower use state：
State 1：By lower button SB1, main circuit is connected, and electric motor starting, energy-dissipating brake circuit is off；
State 1A：When motor speed is less than low velocity threshold, noise transducer NS output voltages are less than low pressure threshold, are examined in noise
In slowdown monitoring circuit, relay KA is in obtain electricity condition, and the normally-closed contact of control circuit repeat circuit KA disconnects；
State 1B：When motor speed is higher than High Speed Threshold, noise transducer NS output voltages are higher than HVT high voltage threshold, are examined in noise
In slowdown monitoring circuit, relay KA is in power failure state, the normally-closed contact closure of control circuit repeat circuit KA, and energy-dissipating brake circuit is done
Good conducting prepares；
State 2A：SB2 is pressed in state 1A, then energy-dissipating brake circuit is disconnected；
State 2B：SB2 is pressed in state 1B, main circuit disconnects, and energy-dissipating brake circuit is connected, and motor starts to brake, and works as motor
When rotating speed is less than low velocity threshold, energy-dissipating brake circuit disconnects.
The present invention and preferred solution structure simplify, are of low cost, safety and stability, highly practical, market value is high, existing
On the basis of technology, using noise transducer detection improvement, it is not necessary to special installation requirement is proposed on motor slewing,
Noise transducer device only need to be placed, solving currently available technology medium velocity Controlling principle, there are inevitable disadvantage
End.Noise measuring when at the same time using equipment operation, can improve time control principle well in the prior art due to load
The running environment such as difference control inaccuracy caused by changing, so as to save electric energy.Technical solution of the present invention is used for Unidirectional
Equipment, while it is also applied for bidirectional movement slewing.
Brief description of the drawings
The present invention is described in more detail with reference to the accompanying drawings and detailed description：
Fig. 1 is integrated circuit structure diagram of the embodiment of the present invention；
Fig. 2 is noise detecting circuit structure diagram of the embodiment of the present invention.
Embodiment
Feature and advantage to allow this patent can become apparent, and special embodiment below, is described in detail below：
As shown in Figure 1, the embodiment of the present invention includes：Motor M, operation contactor KM1, dynamic braking contactor KM2, main circuit,
Energy-dissipating brake circuit, control circuit and noise detecting circuit；Motor M is connected by main circuit with three-phase alternating-current supply, and operation connects
The break-make of the normally opened main contacts control main circuit of tentaculum KM1；Energy-dissipating brake circuit connects three-phase alternating-current supply and motor M stators,
Three-phase alternating current is converted into the direct current for braking motor M, the normally opened master of dynamic braking contactor KM2 by vertoro TC
Contact controls the break-make of energy-dissipating brake circuit；The normally opened main contacts of control circuit control operation contactor KM1 and dynamic braking connect
The normally opened main contacts of tentaculum KM2 realizes interlocking, main circuit and energy-dissipating brake circuit is not also turned on；Noise detecting circuit includes
The noise transducer NS of motor M sides is arranged on to detect the real-time noise of motor M operatings（It should be close to set as far as possible to ensure
The effect of noise measuring and accuracy）, the prerequisite that energy-dissipating brake circuit can turn on is that noise transducer NS detects electricity
Machine M running noises are more than default noise threshold.
The normally opened main contacts of control circuit control operation contactor KM1 and the normally opened main contacts of dynamic braking contactor KM2
Interlocking pass through normally opened contact, the normally-closed contact of operation contactor KM1 of dynamic braking contactor KM2 connected in control circuit
The normally-closed contact of normally opened contact, dynamic braking contactor KM2 with the operation contactor KM1 of series connection is realized；Energy-dissipating brake circuit
Including relay KA, when noise transducer NS detects that motor M running noises are more than default noise threshold, relay KA loses
Electricity, the normally-closed contact of relay KA is connected on the normally opened contact of dynamic braking contactor KM2 and the normally closed of operation contactor KM1 is touched
In the series circuit of point.
In the present embodiment, fuse FU1 and electrothermal relay FR provides short circuit and overload protection for main circuit；Fuse
FU1 provides short-circuit protection for energy-dissipating brake circuit, and current limliting regulation resistance R3 is connected in energy-dissipating brake circuit, and resistance R3 is adjustable
Resistance, for adjusting the intensity and speed of braking；Control circuit accesses three-phase alternating-current supply, by fuse FU2 and electrothermal relay
FR provides short circuit and overload protection.
Control circuit includes button SB1 and button SB2；The normally opened contact closure of button SB1 control operation contactors KM1,
It is electric for obtaining operation contactor KM1；The normally opened contact and dynamic braking contactor KM2 of button SB2 control operation contactors KM1
The series circuit that forms of normally-closed contact disconnect, and control the normally opened contact of dynamic braking contactor KM2 to close, as relay KA
Normally-closed contact closure when, for making operation contactor KM1 dead electricity, dynamic braking contactor KM2 obtains electric.
When button SB1 is pressed, contact is run in the normally opened main contacts of operation contactor KM1 and control circuit in main circuit
The normally opened main contacts of device KM1, which closes, realizes self-locking.
When button SB2 is pressed, and the normally-closed contact of relay KA closes, dynamic braking contactor in energy-dissipating brake circuit
The normally opened contact of dynamic braking contactor KM2, which closes, in the normally opened main contacts and control circuit of KM2 realizes self-locking.
As shown in Fig. 2, in noise detecting circuit, noise transducer NS connects operational amplifier reverse input end, and computing is put
Big device positive input voltage is added in the voltage stabilizing value at voltage-stabiliser tube both ends for DC power supply after resistance R1 partial pressures, and operational amplifier is defeated
Outlet connects the base stage of triode VT through resistance R2, and DC power anode meets triode VT through diode VD and relay KA in parallel
Collector；DC power cathode connects the emitter of triode VT.
When motor M just started running noises decibel it is smaller when, in noise detecting circuit, the output voltage of noise transducer NS
It is smaller so that the voltage that the reverse input end for the voltage comparator being connected with it perceives is less than positive input voltage, at this moment
Voltage comparator output high level turns on triode VT, and resistance R2 plays current-limiting protection, and relay KA obtains electric, diode VD
Act the protection triode that backflows, the normally-closed contact for being now placed in control circuit repeat circuit KA is opened, and prevents from just having opened in motor M
Dynamic, the maloperation being just braked when electric current is also very big, protects motor M.When motor M remains in operation, noise decibel reaches certain
During setting value, the normally-closed contact of relay KA recovers to close through voltage comparator, to realize that energy consumption of electrical machinery braking is ready.
When energy-dissipating brake circuit is connected, two phase windings that alternating current is added to after Transformer Rectifier in motor stator are to produce
Raw D.C. magnetic field, since the rotor cutting magnetic field of inertial rotation produces induced potential and electric current, forms the braking opposite with steering
Torque makes rotor brake, when motor M tapers off operation, when noise decibel drops to setting value, and the normally-closed contact of relay KA
Open, dynamic braking contactor KM2 coil losing electricities, energy-dissipating brake circuit disconnects, and braking procedure is completed.
Specifically, the application method of the embodiment of the present invention includes state used below：
State 1：By lower button SB1, main circuit is connected, and motor M starts, and energy-dissipating brake circuit is off；
State 1A：When motor M rotating speeds are less than threshold value, noise transducer NS output voltages are less than low pressure threshold, in noise measuring
In circuit, relay KA is in obtain electricity condition, and the normally-closed contact of control circuit repeat circuit KA disconnects；
State 1B：When motor M rotating speeds are higher than threshold value, noise transducer NS output voltages are higher than HVT high voltage threshold, in noise measuring
In circuit, relay KA is in power failure state, the normally-closed contact closure of control circuit repeat circuit KA, and energy-dissipating brake circuit is carried out
Conducting prepares；
State 2A：SB2 is pressed in state 1A, then energy-dissipating brake circuit is disconnected；
State 2B：SB2 is pressed in state 1B, main circuit disconnects, and energy-dissipating brake circuit is connected, and motor M starts to brake, and works as motor
When M rotating speeds are less than threshold value, energy-dissipating brake circuit disconnects.
This patent is not limited to above-mentioned preferred forms, anyone can draw other each under the enlightenment of this patent
The noise measuring formula energy consuming brake and application method of kind form, all equivalent changes done according to scope of the present invention patent
With modification, it should all belong to the covering scope of this patent.
Claims (8)
- A kind of 1. noise measuring formula energy consuming brake, it is characterised in that including：Motor, operation contactor KM1, dynamic braking Contactor KM2, main circuit, energy-dissipating brake circuit, control circuit and noise detecting circuit；The motor passes through main circuit and three-phase AC power connects, the break-make of the normally opened main contacts control main circuit of the operation contactor KM1；The energy-dissipating brake circuit connects Three-phase alternating-current supply and motor stator are connect, three-phase alternating current is converted into the direct current for making motor braking by vertoro TC, The break-make of the normally opened main contacts control energy-dissipating brake circuit of the dynamic braking contactor KM2；Described in the control circuit control The normally opened main contacts of the normally opened main contacts of operation contactor KM1 and the dynamic braking contactor KM2 realize interlocking, make main circuit It is not also turned on energy-dissipating brake circuit；The noise detecting circuit includes being arranged on the noise transducer NS of motor side, institute The prerequisite that stating energy-dissipating brake circuit can turn on is that the noise transducer NS detects motor operation noise more than default Noise threshold.
- 2. noise measuring formula energy consuming brake according to claim 1, it is characterised in that：The control circuit controls institute The interlocking for stating the normally opened main contacts of operation contactor KM1 and the normally opened main contacts of the dynamic braking contactor KM2 passes through control Normally opened contact, the normally-closed contact of operation contactor KM1 and the operation of series connection of the dynamic braking contactor KM2 to connect in circuit connects The normally opened contact of tentaculum KM1, the normally-closed contact of dynamic braking contactor KM2 are realized；The energy-dissipating brake circuit includes relay KA, when the noise transducer NS detects that motor operation noise is more than default noise threshold, the relay KA dead electricity, The normally-closed contact of the relay KA be connected on dynamic braking contactor KM2 normally opened contact and operation contactor KM1 it is normally closed In the series circuit of contact.
- 3. noise measuring formula energy consuming brake according to claim 1, it is characterised in that：Fuse FU1 and hot relay Device FR provides short circuit and overload protection for main circuit；Fuse FU1 provides short-circuit protection for energy-dissipating brake circuit, and current limliting adjusts electricity Resistance R3 is connected in energy-dissipating brake circuit；The control circuit accesses three-phase alternating-current supply, by fuse FU2 and electrothermal relay FR Short circuit and overload protection are provided.
- 4. noise measuring formula energy consuming brake according to claim 2, it is characterised in that：In the noise detecting circuit In, noise transducer NS connects operational amplifier reverse input end, and operational amplifier positive input voltage is DC power supply through electricity The voltage stabilizing value at voltage-stabiliser tube both ends is added in after resistance R1 partial pressures, operational amplifier output terminal connects the base stage of triode VT through resistance R2, directly Stream positive pole connects the collector of triode VT through diode VD and relay KA in parallel；DC power cathode meets triode VT Emitter.
- 5. noise measuring formula energy consuming brake according to claim 4, it is characterised in that：The control circuit includes pressing Button SB1 and button SB2；The normally opened contact closure of the button SB1 control operation contactors KM1, for making operation contactor KM1 Obtain electric；The normally opened contact of the button SB2 control operation contactors KM1 and the normally-closed contact of dynamic braking contactor KM2 are formed Series circuit disconnect, and control the normally opened contact of dynamic braking contactor KM2 close, when the normally-closed contact closure of relay KA When, for making operation contactor KM1 dead electricity, dynamic braking contactor KM2 obtains electric.
- 6. noise measuring formula energy consuming brake according to claim 5, it is characterised in that：When the button SB1 is pressed When, the normally opened main contacts of operation contactor KM1 closes in the normally opened main contacts of operation contactor KM1 and control circuit in main circuit Self-locking is realized in conjunction.
- 7. noise measuring formula energy consuming brake according to claim 6, it is characterised in that：When the button SB2 is pressed, And during the normally-closed contact closure of relay KA, the normally opened main contacts of dynamic braking contactor KM2 and control in energy-dissipating brake circuit The normally opened contact of dynamic braking contactor KM2, which closes, in circuit realizes self-locking.
- 8. the application method of noise measuring formula energy consuming brake according to claim 7, it is characterised in that make including following Use state：State 1：By lower button SB1, main circuit is connected, and electric motor starting, energy-dissipating brake circuit is off；State 1A：When motor speed is less than low velocity threshold, noise transducer NS output voltages are less than low pressure threshold, are examined in noise In slowdown monitoring circuit, relay KA is in obtain electricity condition, and the normally-closed contact of control circuit repeat circuit KA disconnects；State 1B：When motor speed is higher than High Speed Threshold, noise transducer NS output voltages are higher than HVT high voltage threshold, are examined in noise In slowdown monitoring circuit, relay KA is in power failure state, the normally-closed contact closure of control circuit repeat circuit KA, and energy-dissipating brake circuit is done Good conducting prepares；State 2A：SB2 is pressed in state 1A, then energy-dissipating brake circuit is disconnected；State 2B：SB2 is pressed in state 1B, main circuit disconnects, and energy-dissipating brake circuit is connected, and motor starts to brake, and works as motor When rotating speed is less than low velocity threshold, energy-dissipating brake circuit disconnects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810016848.1A CN107911048A (en) | 2018-01-09 | 2018-01-09 | Noise measuring formula energy consuming brake and application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810016848.1A CN107911048A (en) | 2018-01-09 | 2018-01-09 | Noise measuring formula energy consuming brake and application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107911048A true CN107911048A (en) | 2018-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810016848.1A Pending CN107911048A (en) | 2018-01-09 | 2018-01-09 | Noise measuring formula energy consuming brake and application method |
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| Country | Link |
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| CN (1) | CN107911048A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1818207A2 (en) * | 2006-02-10 | 2007-08-15 | Kabushiki Kaisha Toshiba | Electric rolling stock control apparatus |
| CN203301406U (en) * | 2013-06-04 | 2013-11-20 | 河北玉星生物工程有限公司 | Novel dynamic braking circuit |
| CN106443444A (en) * | 2016-09-27 | 2017-02-22 | 北海益生源农贸有限责任公司 | Motor operation state monitoring and management system |
| CN106864364A (en) * | 2017-01-25 | 2017-06-20 | 上海蔚来汽车有限公司 | Vehicle safety method for early warning and system based on noise |
| JP3213781U (en) * | 2017-09-20 | 2017-11-30 | ジャパンポリマーク株式会社 | Brake device for general-purpose motor |
-
2018
- 2018-01-09 CN CN201810016848.1A patent/CN107911048A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1818207A2 (en) * | 2006-02-10 | 2007-08-15 | Kabushiki Kaisha Toshiba | Electric rolling stock control apparatus |
| CN203301406U (en) * | 2013-06-04 | 2013-11-20 | 河北玉星生物工程有限公司 | Novel dynamic braking circuit |
| CN106443444A (en) * | 2016-09-27 | 2017-02-22 | 北海益生源农贸有限责任公司 | Motor operation state monitoring and management system |
| CN106864364A (en) * | 2017-01-25 | 2017-06-20 | 上海蔚来汽车有限公司 | Vehicle safety method for early warning and system based on noise |
| JP3213781U (en) * | 2017-09-20 | 2017-11-30 | ジャパンポリマーク株式会社 | Brake device for general-purpose motor |
Non-Patent Citations (1)
| Title |
|---|
| 李楠, 北京理工大学出版社 * |
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Application publication date: 20180413 |