CN110386410A - A kind of drag conveyor magnetic coupling multimachine powered balance control system - Google Patents
A kind of drag conveyor magnetic coupling multimachine powered balance control system Download PDFInfo
- Publication number
- CN110386410A CN110386410A CN201910652886.0A CN201910652886A CN110386410A CN 110386410 A CN110386410 A CN 110386410A CN 201910652886 A CN201910652886 A CN 201910652886A CN 110386410 A CN110386410 A CN 110386410A
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- China
- Prior art keywords
- tail
- head
- air gap
- magnetic coupling
- adjusting device
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G19/00—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors
- B65G19/18—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/22—Arrangements or mountings of driving motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
-
- 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
- H02K49/108—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element with an axial air gap
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/02—Control or detection
- B65G2203/0266—Control or detection relating to the load carrier(s)
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Abstract
The invention discloses a kind of drag conveyor magnetic coupling multimachine powered balance control systems.Its control method is electric current control method, control device is made of PLC control module, magnetic coupling and air gap adjusting device module, PLC control module is controlled using CAN communication bus communication, its superior performance, rate are high, communication distance is remote, strong antijamming capability, the current signal that can fast and effeciently acquire, compare drag conveyor head and the tail adjusts the output torque of magnetic coupling by air gap adjusting device, realize the dynamic equilibrium of drag conveyor power, control system of the invention is of great significance to the safety and reliability for improving drag conveyor operation.
Description
Technical field
The present invention relates to Energy Saving Control field, the magnetic coupling multimachine power-balance control of specifically a kind of drag conveyor
System processed.
Background technique
Currently, the traditional soft starting mode of China's drag conveyor be using fluid-flywheel clutch or two-speed motor, wherein
Fluid-flywheel clutch can be used only on small-power drag conveyor due to the limitation of size and transmission capacity, and fluid coupling pair
Underground water quality is more demanding, and under conveyer overload situations, water temperature raising can generate fouling, blocks the damping hole in control valve；
Drag conveyor two-speed motor drive system is applied more in China at present, and main suitable power 700kW is hereinafter, start-up course
It is divided into second level progress, i.e., first low rate start is switched to high speed again.Double-speed motor is in drag conveyor heavier loads, it may appear that low
The case where speed can be run, and cannot be run at a high speed, and cannot achieve power-balance in multimachine driving.With drive motor power
It increases, conventional ADS driving mode has not adapted to the driving and service requirement of drag conveyor, there is the mechanical punching of difficult starting, strength
It hits, high current is to outstanding problems such as the impact of power grid and multimachine unbalanced powers.
With scientific and technological progress, requirement of the coal mining enterprise to equipment is higher and higher, heavy load starting ability, overload protection ability,
The various driving new demands to drag conveyor such as high efficiency, low energy consumption are suggested.Magnetic coupling is a kind of utilization air gap biography
The Novel transmission technology of torque is passed, structure is simple, easy to maintain, can adapt to harsh environments, is a kind of soft well
Transmission device.
Summary of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, a kind of drag conveyor soft start and intelligence are provided
Control the control method of multimachine unbalanced power.
The present invention realizes that goal of the invention adopts the following technical scheme that
A kind of drag conveyor magnetic coupling multimachine powered balance control system, mainly include head drive part,
Tail-driving part, drag conveyor, signal picker, CAN communication bus and PLC controller.Head drive part includes machine
Head motor, head magnetic coupling, head air gap adjusting device, head retarder, head yielding coupling；Tail-driving part
Including tail motor, tail magnetic coupling, tail air gap adjusting device, tail retarder, tail yielding coupling.The machine
The motor of head drive part, magnetic coupling, air gap adjusting device, retarder performance parameter are identical as tail-driving part,
The motor is all made of threephase asynchronous, and the magnetic coupling is divided into permanent magnet assembly disk, conductor assembly disk, the gas
Gap regulating device is made of stepper motor and connecting rod etc., and the head motor passes through head yielding coupling and head conductor assembly
Disk connection, the head retarder input terminal are coupled by head yielding coupling with head permanent magnet assembly disk, the head
Air gap adjusting device couples with head permanent magnet assembly disk, and the head retarder output end passes through head yielding coupling and scrapes
The connection of plate conveyer head；The tail motor is coupled by tail yielding coupling with tail conductor assembly disk, the tail
Retarder input terminal is coupled by tail yielding coupling with tail permanent magnet assembly disk, the tail air gap adjusting device and machine
The connection of tail permanent magnet assembly disk, the tail retarder output end are joined by tail yielding coupling and scraper conveyor tail
It connects.
Further, CAN communication bus acquires head, tail motor stator electric current by signal picker, and electric current is believed
Number pass to PLC controller.
Further, after PLC controller carries out series of computation, regulated value is given to head respectively, tail air gap adjusts dress
It sets, by the working time of the stepper motor in regulated value control head, tail air gap adjusting device.
Further, stepper motor is by coupling the permanent magnet assembly disk of head, tail with devices such as connecting rods, and then adjusts forever
Air gap between magnet body assembly disk and conductor assembly disk.
The utility model has the advantages that
Compared with prior art, the present invention its advantages are embodied in: quickly opening for motor not only may be implemented in the present invention
Dynamic and soft start, and the power-balance of motor may be implemented.In addition, whole system automation is adjusted, structure is simple, accuracy
It is high.
Detailed description of the invention
Fig. 1 is multimachine drive system balanced structure schematic diagram；
Fig. 2 is multimachine drive system power-balance control flow chart；
Fig. 3 magnetic coupling schematic diagram.
Components mark in the invention patent is done as described below:
I, head drive part includes: 21. head air gap adjusting devices；31. head retarder；41. head shaft coupling；
51. head magnetic coupling；61. head motor；
II, tail-driving part includes: 22. tail air gap adjusting devices；32. tail retarder；42. tail shaft coupling；
52. tail magnetic coupling；62. tail motor；
1.PLC controller；2. air gap adjusting device；6. motor；7.CAN communication bus；8. drag conveyor；9. conductor is total
At disk；10. input shaft；11. permanent magnet assembly disk；12 output shafts；13. air gap.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the present invention: a kind of drag conveyor magnetic coupling multimachine powered balance control system, it is main to wrap
Include head drive part I, tail-driving part ii, drag conveyor 8, signal picker, CAN communication bus 7 and PLC controller
1.Head drive part I includes head motor 61, head magnetic coupling 51, head air gap adjusting device 21, head retarder
31, head yielding coupling 41；Tail-driving part ii includes tail motor 62, tail magnetic coupling 52, tail air gap tune
Regulating device 22, tail retarder 32, tail yielding coupling 42.The motor 6, air gap adjusting device 2, subtracts magnetic coupling 5
Fast 3 performance parameter of device is identical, and the motor 6 is all made of threephase asynchronous, and the magnetic coupling 5 divides for permanent magnet assembly
Disk 11, conductor assembly disk 9, the air gap adjusting device 2 are made of stepper motor and connecting rod etc., and the head motor 61 passes through machine
Head yielding coupling 41 couples with head conductor assembly disk 9, and 31 input terminal of head retarder passes through yielding coupling and machine
Head permanent magnet assembly disk 11 couples, and the head air gap adjusting device 21 couples with head permanent magnet assembly disk 11, the head
31 output end of retarder is coupled by head yielding coupling 41 with 8 head of drag conveyor；The tail motor 62 passes through machine
Tail yielding coupling 42 couples with tail conductor assembly disk 9, and 32 input terminal of tail retarder passes through tail yielding coupling
42 couple with tail permanent magnet assembly disk 11, and the tail air gap adjusting device 22 couples with tail permanent magnet assembly disk 11, institute
32 output end of tail retarder is stated to couple by tail yielding coupling 42 with 8 tail of drag conveyor.
Further, CAN communication bus 7 acquires head, tail motor stator electric current by signal picker, and electric current is believed
Number pass to PLC controller 1.
Further, after PLC controller 1 carries out series of computation, regulated value is given to head respectively, tail air gap adjusts dress
2 are set, by the working time of the stepper motor in regulated value control head, tail air gap adjusting device 2.
Further, stepper motor is by coupling the permanent magnet assembly disk 11 of head, tail with devices such as connecting rods, and then adjusts
Air gap 13 between permanent magnet assembly disk 11 and conductor assembly disk 9.
Specific control flow:
By the periodically acquisition head, tail current of electric of the signal picker on head, tail motor, pass through CAN communication
Bus 7 gives current signal to PLC controller 1, and calculating current mean value and each electric current and the deviation ratio of mean value (specifically calculated
Journey is below), and regulated value is given to air gap adjusting device 2 via CAN communication bus 7.When a certain output power of motor is inclined
When big, when the deviation ratio of electric current is higher than threshold value, magnetic coupling air gap 13 can be increased by air gap adjusting device 2, make magnetic force
The output torque of coupler reduces, and then reduces the power of motor output；When a certain output power of motor is less than normal, electric current
Deviation ratio be lower than threshold value when, small magnetic coupling air gap 13 can be increased and decreased by air gap adjusting device 2, make the defeated of magnetic coupling
Torque increases out, and then increases the power of motor output.It, should be according to work to avoid air gap adjusting device 2 is frequent from acting
On-site actual situations set control accuracy rating (general control precision as ± 5%)
Data handling procedure: by the A phase current of each motor stator, it is set to I1、I2。
In formula: I1、I2Respectively head current of electric, tail current of electric, A；IpFor current average, A；AiFor each electricity
The deviation ratio of stream and current average.
Magnetic coupling constitutes and operation logic explanation:
Structure: input shaft 10 is located at same axis with output shaft 12 and adjacent shaft end is connected by bearing, input shaft 10
With output shaft 12 without mechanical attachment, input shaft 10 is coupled by yielding coupling with motor, and conductor assembly disk and input shaft 10 are solid
Knot, output shaft 12 are coupled by yielding coupling with retarder, and permanent magnet assembly disk and output shaft consolidate, and air gap adjusting device is logical
It crosses connecting rod to couple with permanent magnet assembly disk, permanent magnet assembly disk and conductor assembly disk are positioned opposite, but do not contact, and form air gap
13。
Operation logic: when conductor assembly disk 9 follows 6 axis of motor to rotate, conductor assembly disk 9 cuts permanent magnet assembly disk 11
The magnetic line of force formed between air gap 13 generates eddy current.The electric current generates induced magnetic field, resistance around conductor assembly disk 9 again
The only relative motion of conductor assembly disk 9 and permanent magnet assembly disk 11, to realize that the revolving speed between motor 6 and load, torque pass
It passs.When start-up operation, air gap adjusting device 2 first can be controlled by PLC controller 1 and magnetic coupling air gap 13 is adjusted to maximum, so
It gradually turns down afterwards, the output torque of magnetic coupling gradually increases, until output torque is required most greater than with dynamic load rotation
Soft start is realized in small torque.
Segment word in embodiment is done as described below, " connection ", " consolidation " are existing machinery peace in the present embodiment
Fit system in dress should specifically depend on the circumstances.The prior art can be used in air gap adjusting device in the present embodiment, such as: electricity
Dynamic actuator, it is only necessary to which those skilled in the art optionally change.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (4)
1. a kind of drag conveyor magnetic coupling multimachine powered balance control system mainly includes head drive part, machine
Tail drive part, drag conveyor, signal picker, CAN communication bus and PLC controller.Head drive part includes head
Motor, head magnetic coupling, head air gap adjusting device, head retarder, head yielding coupling；Tail-driving part packet
Include tail motor, tail magnetic coupling, tail air gap adjusting device, tail retarder, tail yielding coupling.The electricity
Machine, magnetic coupling, air gap adjusting device, retarder performance parameter are identical, and the motor is all made of threephase asynchronous, institute
It states magnetic coupling and is divided into permanent magnet assembly disk, conductor assembly disk, the air gap adjusting device is by structures such as stepper motor and connecting rods
At the head motor is coupled by head yielding coupling with head conductor assembly disk, and the head retarder input terminal is logical
It crosses head yielding coupling to couple with head permanent magnet assembly disk, the head air gap adjusting device and head permanent magnet assembly disk
Connection, the head retarder output end are coupled by head yielding coupling with handpiece of scraper conveyer；The tail motor
Coupled by tail yielding coupling with tail conductor assembly disk, the tail retarder input terminal passes through tail yielding coupling
Couple with tail permanent magnet assembly disk, the tail air gap adjusting device couples with tail permanent magnet assembly disk, and the tail subtracts
Fast device output end is coupled by tail yielding coupling with scraper conveyor tail.
2. a kind of drag conveyor according to claim 1 magnetic coupling multimachine powered balance control system, special
Sign is: CAN communication bus acquires head, tail motor stator electric current by signal picker, and current signal is passed to
PLC controller.
3. a kind of drag conveyor according to claim 1 magnetic coupling multimachine powered balance control system, special
Sign is: after PLC controller carries out series of computation, regulated value being given to head, tail air gap adjusting device respectively, by adjusting
The working time of value control head, stepper motor in tail air gap adjusting device.
4. a kind of drag conveyor according to claim 2 or 3 magnetic coupling multimachine powered balance control system,
Be characterized in that: stepper motor is by coupling the permanent magnet assembly disk of head, tail with devices such as connecting rods, and then it is total to adjust permanent magnet
At the air gap between disk and conductor assembly disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910652886.0A CN110386410A (en) | 2019-07-19 | 2019-07-19 | A kind of drag conveyor magnetic coupling multimachine powered balance control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910652886.0A CN110386410A (en) | 2019-07-19 | 2019-07-19 | A kind of drag conveyor magnetic coupling multimachine powered balance control system |
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| CN110386410A true CN110386410A (en) | 2019-10-29 |
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| CN201910652886.0A Pending CN110386410A (en) | 2019-07-19 | 2019-07-19 | A kind of drag conveyor magnetic coupling multimachine powered balance control system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112850170A (en) * | 2021-03-02 | 2021-05-28 | 王坦之 | Non-contact driving transmission system |
| CN114013954A (en) * | 2021-12-15 | 2022-02-08 | 国家能源集团乌海能源有限责任公司 | Automatic power balancing method and system based on scraper conveyor multi-loop frequency converter |
| CN114499287A (en) * | 2022-02-28 | 2022-05-13 | 中煤科工机器人科技有限公司 | Constant-torque load multi-machine power balance permanent magnet speed regulation control method |
| CN114988022A (en) * | 2022-05-20 | 2022-09-02 | 国家能源集团煤焦化有限责任公司 | Dual-drive scraper conveyor |
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| JPH08113134A (en) * | 1994-10-18 | 1996-05-07 | Isuzu Motors Ltd | Braking force control device of eddy current type reduction gear |
| CN102183330A (en) * | 2011-03-07 | 2011-09-14 | 中国矿业大学 | Device and method for monitoring tensioning states of scraper conveyor chains |
| CN203714643U (en) * | 2014-01-17 | 2014-07-16 | 山东中大机械装备有限公司 | Switch magnetic resistance control type speed regulation scraper conveyor |
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| CN107994754A (en) * | 2017-12-19 | 2018-05-04 | 安徽理工大学 | A kind of disc type asynchronous magnetic coupler arrangements for speed regulation |
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2019
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| JPH08113134A (en) * | 1994-10-18 | 1996-05-07 | Isuzu Motors Ltd | Braking force control device of eddy current type reduction gear |
| CN102183330A (en) * | 2011-03-07 | 2011-09-14 | 中国矿业大学 | Device and method for monitoring tensioning states of scraper conveyor chains |
| CN203714643U (en) * | 2014-01-17 | 2014-07-16 | 山东中大机械装备有限公司 | Switch magnetic resistance control type speed regulation scraper conveyor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112850170A (en) * | 2021-03-02 | 2021-05-28 | 王坦之 | Non-contact driving transmission system |
| CN114013954A (en) * | 2021-12-15 | 2022-02-08 | 国家能源集团乌海能源有限责任公司 | Automatic power balancing method and system based on scraper conveyor multi-loop frequency converter |
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| CN114499287A (en) * | 2022-02-28 | 2022-05-13 | 中煤科工机器人科技有限公司 | Constant-torque load multi-machine power balance permanent magnet speed regulation control method |
| CN114988022A (en) * | 2022-05-20 | 2022-09-02 | 国家能源集团煤焦化有限责任公司 | Dual-drive scraper conveyor |
| CN114988022B (en) * | 2022-05-20 | 2023-10-03 | 国家能源集团煤焦化有限责任公司 | Dual-drive scraper conveyor |
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Application publication date: 20191029 |