CN201390510Y - One-quadrant frequency converter soft start under belt conveyor - Google Patents
One-quadrant frequency converter soft start under belt conveyor Download PDFInfo
- Publication number
- CN201390510Y CN201390510Y CN200920143884U CN200920143884U CN201390510Y CN 201390510 Y CN201390510 Y CN 201390510Y CN 200920143884 U CN200920143884 U CN 200920143884U CN 200920143884 U CN200920143884 U CN 200920143884U CN 201390510 Y CN201390510 Y CN 201390510Y
- Authority
- CN
- China
- Prior art keywords
- frequency converter
- soft start
- quadrant frequency
- belt conveyor
- quadrant
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Control Of Conveyors (AREA)
Abstract
A one-quadrant frequency converter soft start under belt conveyor relates to an under belt conveyor employing soft start, in particular to an under belt conveyor with an one-quadrant frequency converter serving as the soft start, which is characterized in that a one-quadrant frequency converter (12) is connected with a frequency conversion motor (11); the frequency conversion motor (11), a high-speed coupling (10), a speed reducer (6), a disc brake (9) and a drive roller (1) are connected in sequence to form a one-quadrant frequency converter soft start drive part; and an ordinary asynchronous motor (8), a constant filling fluid coupling (7), the speed reducer (6), the disc brake (9), a low-speed coupling (5) and the drive roller (1) are connected in sequence to form a feedback power generation drive part for normal operation purposes. In terms of power generation, the ordinary asynchronous motor is preferred to the frequency converter, with no harmonic pollution. Compared with the four-quadrant frequency converter, the one-quadrant frequency converter is more mature in application, has the advantages of simple structure and low sale price, is as qualified as several four-quadrant frequency converters in the multi-machine drive case, and has high economic values.
Description
Technical field
One quadrant frequency converter soft start downward belt conveyor is a kind of downward belt conveyor that adopts soft start, particularly adopts the downward belt conveyor of a quadrant frequency converter as soft start.
Background technology
One, downward belt conveyor need dispose soft starter device
Downward belt conveyor is a kind of extraordinary belt conveyer of transported material from high to lower.When full-load run, generate electricity and spent material gravitional force by the motor feedback; Downward belt conveyor is subjected to the influence of topographic condition (as big rise and fall) and carrying capacity, its starting duty more complicated.Downward belt conveyor configuration soft starter device, cooperate with plate disc brake, can effectively reduce, the dynamic tension of braking procedure, prolong the service life of load-transfer device and joint with soft braking function, even can reduce belt intension, have a great economic significance; But there is the problem of generating operation mode and electronic operating mode weaving in the downward belt conveyor electrical motor when normal operation, so soft starter device is more more complicated than common belt conveyor, also have higher requirement.
Two, existing soft starter device is used for the present situation of downward belt conveyor
1, adopts the electric soft starter device of voltage-regulation type
The electric soft starter device moment of starting of voltage-regulation type is less, but the moment of starting that following fortune conveyer generally requires under light condition is just maximum, considers to adopt electric soft starter device ratio more favourable on the fortune conveyer so only close to fasten from moment.Necessary brake activation power during starting allows motor be in starting under the motoring condition, otherwise may make the adjusting of voltage not catch up with the variation of conveyor speed and cause that belt speed is out of control.Adopt the electric soft starter device of voltage-regulation type, can not realize that the power balance function and the long-time low speed of many motor operations is tested the band function.
2, adopt variable speed fluid coupling
Adopt variable speed fluid coupling as soft start, this kind control method is if also there is the danger of conveyer stall as can not follow the sealing-tape machine velocity variations time in filling amount.Adopt variable speed fluid coupling, because heating, can't realize that long-time low speed tests the band function.
3, adopt planet differential type soft starter device
Planet differential type soft starter device comprises that CST and YKQ hydraulic control execute the lock soft starter device outward.These two kinds of soft starter devices all are the rotating speeds by sticking drg of liquid or plate disc brake control planetary reduction gear internally toothed annulus, thereby the rotating speed of change pinion carrier (output shaft) reaches the purpose of soft start.Or the reduction gradually simultaneously of the output torque of YKQ, cause sealing-tape machine stall at last.These two kinds of soft starter devices are all because heating problem, can't realize that long-time low speed tests the band function.
4, adopt four-quadrant frequency converter
Adopt four-quadrant frequency converter can solve the deficiency of above 3 kinds of soft starter devices, can realize that the power balance function and the long-time low speed of many motor operations is tested the band function.There is the problem of generating operation mode and electronic operating mode weaving in the downward belt conveyor electrical motor when normal operation.The four-quadrant frequency converter complex structure, the high problem of operational failure rate can't solve all the time continuously on belt conveyer; The electricity that motor sends is through the conversion of four-quadrant frequency converter AC-DC-AC, and waveform is not level and smooth sine curve, and frequency is also inaccurate.Waveform with electrical network after being transported on the electrical network superposes, and can produce harmonic wave, pollutes electrical network, makes a big impact for other current consumer.
Summary of the invention
The utility model one quadrant frequency converter soft start downward belt conveyor goal of the invention: in order to overcome the deficiency of four-quadrant frequency converter, provide a kind of downward belt conveyor machine, this conveyer adopts a quadrant frequency converter soft start.
The utility model one quadrant frequency converter soft start downward belt conveyor is achieved in that by head roll, changed course cylinder, carrying roller, adhesive tape, low-speed shaft coupler, retarder, load limiting type of constant filling fluid coupling, normal asynchronous, plate disc brake, retarder, high speed coupler, variable-frequency motor and a quadrant frequency converter to be formed; One quadrant frequency converter links to each other with variable-frequency motor; Variable-frequency motor, high speed coupler, retarder, plate disc brake, head roll link to each other successively, form a quadrant frequency converter soft start drive division; Normal asynchronous, load limiting type of constant filling fluid coupling, retarder, plate disc brake, low-speed shaft coupler, head roll link to each other successively, form normal operation feedback generating drive division; One quadrant frequency converter soft start downward belt conveyor feeds back generating drive division, adhesive tape (4), changed course cylinder (2) and carrying roller (3) by a cover one quadrant frequency converter soft start drive division, 3 covers and forms when normally moving.
No matter the utility model one quadrant frequency converter soft start downward belt conveyor is fully loaded or zero load when starting, no matter which kind of operating mode all is slowly to open drg earlier, detects the conveyer belt speed simultaneously, and three kinds of possibilities are arranged:
If 1 drg is opened fully, conveyer is not starting also, at this moment drops into variable-frequency motor.Regulate the output frequency of frequency converter, the velocity curve according to default allows conveyer slowly quicken (soft start) to motor rated speed of rotation (to 4 grades of motors, rated speed of rotation is 1480r/min), when cutting off variable-frequency motor, drops into main motor.At this moment because the rotor speed of main motor near synchronous speed, so starting becomes very easy, does not almost have to impact the Soft Start-up Process of just finishing positive.
Along with the increase of material, the power of main motor drops to zero energy gradually from positive.The last synchronous speed that under the drive of material sliding force, surpasses, motor power (output) becomes negative power, and beginning is to the generating of electrical network feedback.When many motor-driven, between the high speed shaft of motor shaft and retarder, load limiting type of constant filling fluid coupling is installed, make the characteristic curve deliquescing of motor, thereby can realize the power balance between many motors.---when the fault overwhelming majority of impeller disk appears at the high pulling torque starting---pressure does not alleviate greatly, and fault rate also can reduce so do not need to bear the task of high pulling torque soft start because of the distance-limiting type impeller disk.
If 2 along with slowly the opening of drg, conveyer begins starting, and motor just reached rated speed of rotation at tens seconds in (can set) on primary controller, at this moment do not need to drop into variable-frequency motor, directly dropped into main motor and just can finish starting process.
If 3 along with slowly the opening of drg, conveyer begins starting, but at this moment motor out of reach rated speed of rotation in tens seconds drops into variable-frequency motor, accelerates to rated speed of rotation, cuts off variable-frequency motor and drops into main motor.Following step is with the 1st kind of situation.
Unloaded if desired low speed is tested band, then guarantees it is under the unloaded situation, directly to drop into variable-frequency motor, transfers to required belt speed (zero to regulating arbitrarily between specified belt speed), just can realize that low speed tests the band function.
The beneficial effect of the utility model one quadrant frequency converter soft start downward belt conveyor is that not needing directly by common asynchronous electric and generating, does not have harmonic pollution by the generating of frequency converter feedback; The application of one quadrant frequency conversion is more simple and reliable than four-quadrant mature structure, price is low, especially when multimachine drives, can save several four-quadrant frequency converters, has very high economic value.
Description of drawings
Accompanying drawing 1 is that the utility model adopts the downward belt conveyor master of a quadrant frequency converter soft start to look the layout scheme drawing
Accompanying drawing 2 is downward belt conveyor floor plan scheme drawings that the utility model adopts a quadrant frequency converter soft start
Among the figure: head roll (1), changed course cylinder (2), carrying roller (3), adhesive tape (4), low-speed shaft coupler (5), retarder (6), load limiting type of constant filling fluid coupling (7), normal asynchronous (8), plate disc brake (9), high speed coupler (10), variable-frequency motor (11), a quadrant frequency converter (12)
The specific embodiment
The utility model is made up of head roll (1), changed course cylinder (2), carrying roller (3), adhesive tape (4), low-speed shaft coupler (5), retarder (6), load limiting type of constant filling fluid coupling (7), normal asynchronous (8), plate disc brake (9), high speed coupler (10), variable-frequency motor (11) and a quadrant frequency converter (12); One quadrant frequency converter (12) links to each other with variable-frequency motor (11); Variable-frequency motor (11), high speed coupler (10), retarder (6), plate disc brake (9), head roll (1) are connected to form a quadrant frequency converter soft start drive division successively; Normal asynchronous (8), load limiting type of constant filling fluid coupling (7), retarder (6), plate disc brake (9), low-speed shaft coupler (5), head roll (1) are connected to form normal operation feedback generating drive division successively; One quadrant frequency converter soft start downward belt conveyor feeds back generating drive division, adhesive tape (4), changed course cylinder (2) and carrying roller (3) by 1 cover, one quadrant frequency converter soft start drive division, 3 covers and forms when normally moving.
Claims (2)
1, a quadrant frequency converter soft start downward belt conveyor is characterized in that: be made up of head roll (1), changed course cylinder (2), carrying roller (3), adhesive tape (4), low-speed shaft coupler (5), retarder (6), load limiting type of constant filling fluid coupling (7), normal asynchronous (8), plate disc brake (9), high speed coupler (10), variable-frequency motor (11) and a quadrant frequency converter (12); One quadrant frequency converter (12) links to each other with variable-frequency motor (11); Variable-frequency motor (11), high speed coupler (10), retarder (6), plate disc brake (9), head roll (1) are connected to form a quadrant frequency converter soft start drive division successively; Normal asynchronous (8), load limiting type of constant filling fluid coupling (7), retarder (6), plate disc brake (9), low-speed shaft coupler (5), head roll (1) are connected to form normal operation feedback generating drive division successively; One quadrant frequency converter soft start downward belt conveyor feeds back generating drive division, adhesive tape (4), changed course cylinder (2) and carrying roller (3) and forms by a quadrant frequency converter soft start drive division, when normally moving.
2, according to the described quadrant frequency converter soft start downward belt conveyor of claim 1, it is characterized in that: form by cover one a quadrant frequency converter soft start drive division and the normal operation feedback of 3 covers generating drive division.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920143884U CN201390510Y (en) | 2009-04-16 | 2009-04-16 | One-quadrant frequency converter soft start under belt conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920143884U CN201390510Y (en) | 2009-04-16 | 2009-04-16 | One-quadrant frequency converter soft start under belt conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201390510Y true CN201390510Y (en) | 2010-01-27 |
Family
ID=41597332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920143884U Expired - Lifetime CN201390510Y (en) | 2009-04-16 | 2009-04-16 | One-quadrant frequency converter soft start under belt conveyor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201390510Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102616531A (en) * | 2012-03-22 | 2012-08-01 | 郑州大学 | Power balance adjustment method and system of frequency conversion transmission of belt conveyor |
| RU2500601C1 (en) * | 2012-04-26 | 2013-12-10 | федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Южно-Российский государственный технический университет (Новочеркасский политехнический институт)" | Belt conveyor drive |
| CN106494846A (en) * | 2016-12-22 | 2017-03-15 | 北方重工集团有限公司 | A kind of multi-points driving for belt conveyor control system |
| CN113955426A (en) * | 2021-12-01 | 2022-01-21 | 中煤科工集团上海有限公司 | Belt conveyor control system and method |
| CN114604577A (en) * | 2020-12-04 | 2022-06-10 | 南京宝地梅山产城发展有限公司 | Driving capability balancing system of multi-drive belt conveyor and control method |
| CN116553088A (en) * | 2023-07-07 | 2023-08-08 | 冀中能源股份有限公司邢台矿 | Top belt driving galloping prevention device of downward belt conveyor |
-
2009
- 2009-04-16 CN CN200920143884U patent/CN201390510Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102616531A (en) * | 2012-03-22 | 2012-08-01 | 郑州大学 | Power balance adjustment method and system of frequency conversion transmission of belt conveyor |
| CN102616531B (en) * | 2012-03-22 | 2014-04-09 | 郑州大学 | Power balance adjustment method and system of frequency conversion transmission of belt conveyor |
| RU2500601C1 (en) * | 2012-04-26 | 2013-12-10 | федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Южно-Российский государственный технический университет (Новочеркасский политехнический институт)" | Belt conveyor drive |
| CN106494846A (en) * | 2016-12-22 | 2017-03-15 | 北方重工集团有限公司 | A kind of multi-points driving for belt conveyor control system |
| CN114604577A (en) * | 2020-12-04 | 2022-06-10 | 南京宝地梅山产城发展有限公司 | Driving capability balancing system of multi-drive belt conveyor and control method |
| CN114604577B (en) * | 2020-12-04 | 2023-09-05 | 南京宝地梅山产城发展有限公司 | Multi-drive belt conveyor driving capacity balancing system and control method |
| CN113955426A (en) * | 2021-12-01 | 2022-01-21 | 中煤科工集团上海有限公司 | Belt conveyor control system and method |
| CN116553088A (en) * | 2023-07-07 | 2023-08-08 | 冀中能源股份有限公司邢台矿 | Top belt driving galloping prevention device of downward belt conveyor |
| CN116553088B (en) * | 2023-07-07 | 2023-09-29 | 冀中能源股份有限公司邢台矿 | Top belt driving galloping prevention device of downward belt conveyor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201390510Y (en) | One-quadrant frequency converter soft start under belt conveyor | |
| CN201474863U (en) | Variable-pitch variable-speed wind turbine | |
| DK2449258T3 (en) | Differential gear for a power generation plant and the operation method | |
| CN101555871B (en) | Variable pitch and variable speed wind generating set | |
| CA2748459C (en) | Adaptive voltage control for wind turbines | |
| CN104066977A (en) | Power generating system and hydraulic control system | |
| CN201733269U (en) | Double-fed wind driven generator control system | |
| CN208900281U (en) | A kind of wind generating set pitch control drive control system of double motors | |
| CN205445893U (en) | Driftage damping controlling means of well small wind turbine unit | |
| CN112727788B (en) | Speed regulation method of energy recovery system of speed regulation type double four-quadrant frequency converter | |
| CN102278284A (en) | Automatic governing wind driven generator load device | |
| CN102324801B (en) | Wind-power generating set | |
| CN102157962A (en) | Wind power generator unit based complementary power generating system and grid combined debugging method | |
| CN105024405A (en) | Three-machine set drive variable-frequency generation system | |
| CN113217291A (en) | Double-fed wind turbine generator set integrating compressed air energy storage function and working method thereof | |
| CN1925254A (en) | Wind power generating system based on direct current generator | |
| CN112879109A (en) | Energy recovery method of parallel-connection steam-electricity double-drive coaxial unit based on load distribution | |
| CN203682921U (en) | Overhead traveling crane control system | |
| CN102013762A (en) | Variable speed constant frequency device of wind turbine generator set | |
| CN104265575A (en) | Magnetic driving variable-speed control type wind power generator set and maximum wind energy capture method thereof | |
| CN209444433U (en) | It is a kind of to provide the system of auxiliary power for mine vehicle | |
| CN204835552U (en) | Three unit transmission frequency conversion power generation system | |
| CN201358762Y (en) | Improved oil extractor with energy-saving realization capability | |
| CN105356509A (en) | Lifting machinery matrix type energy feedback transmission system | |
| CN202433446U (en) | Function test platform for 1.5MW doubly-fed wind power converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100127 |
|
| CX01 | Expiry of patent term |