CN108217466A - The electric-control system of annular bending track double girder overhead crane - Google Patents
The electric-control system of annular bending track double girder overhead crane Download PDFInfo
- Publication number
- CN108217466A CN108217466A CN201810206943.8A CN201810206943A CN108217466A CN 108217466 A CN108217466 A CN 108217466A CN 201810206943 A CN201810206943 A CN 201810206943A CN 108217466 A CN108217466 A CN 108217466A
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- China
- Prior art keywords
- control system
- electric
- bending track
- annular bending
- motor group
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/48—Automatic control of crane drives for producing a single or repeated working cycle; Programme control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/40—Applications of devices for transmitting control pulses; Applications of remote control devices
Abstract
The invention discloses a kind of electric-control systems of annular bending track double girder overhead crane, including being set on the drive train coordinated on crane with annular bending track, annular bending track has inner ring raceway and outer ring raceway, drive train includes being separately operable in interior, inner ring motor group and outer shroud motor group in outer ring raceway, each motor group includes former and later two motors, electric-control system includes PLC Centralized Controllers, the speed detector being connected on each motor and with PLC Centralized Controllers, PLC Centralized Controllers connect driving inner ring motor group and outer shroud motor group by two independent frequency converters respectively, the speed limit induction being connected with PLC Centralized Controllers switch and location sensitive switch are also equipped in annular bending track.The present invention gives inner and outer rings motor group and runs at different rates respectively, it is ensured that its operation angle is identical, realizes and synchronizes, and with technologies such as transducer drive, PLC centralized Controls, simple in structure and accurate practicality greatly promotes the excessively curved smooth degree of complete machine.
Description
Technical field
The present invention relates to a kind of electric-control systems of annular bending track double girder overhead crane.
Background technology
At present, in domestic crane material handling industry, with its with industry subdivision and depth requirements it is continuous
Development and change, conventional bridge crane cannot fully meet the application of special industry and environment, towards particular surroundings
Crane starts to continuously emerge.In the prior art, mono beam crane in bridge type because its it is simple in structure can be according to the rail of annular bending track
Road moves towards operation, realizes that turning is relatively easy to, and double girder overhead crane is increasingly complex compared to single-spar construction, running track
Typically point-blank, when on the track in annular bending track or arbitrary combination arc, conventional two-beam bridge lifting
The electric-control system of machine is since control accuracy is low, rectifying effect is poor, it is difficult to the synchronous operation of end carriage inside and outside realization, so as to influence
The excessively curved smooth degree of complete machine.
Invention content
The technical problem to be solved by the present invention is to provide a kind of electric-control systems of annular bending track double girder overhead crane.
The technical scheme is that：A kind of electric-control system of annular bending track double girder overhead crane, including being set on
With the matched drive train of annular bending track on heavy-duty machine cart, the annular bending track has inner ring raceway and outer ring raceway, described
Drive train includes being separately operable in the inner ring motor group on inner and outer rings track and outer shroud motor group, and each motor group includes
Former and later two motors, the electric-control system further includes PLC Centralized Controllers, on each motor and with PLC Centralized Controllers
Connected speed detector, the PLC Centralized Controllers connect driving inner ring motor group by two independent frequency converters respectively
With outer shroud motor group, it is described annular bending track on be also equipped with the speed limit induction being connected with PLC Centralized Controllers switch and position
Put inductive switch.
Further, heretofore described electric-control system further includes the confession electric installation that power is provided for crane operation, institute
State include arranging along annular bending track length direction for electric installation and the conductor that is connect with power supply and on crane from
The current-collector of electricity is taken on conductor.
Further, heretofore described speed detector is speed measuring coder.
Further, heretofore described location sensitive switch includes into curved inductive switch and goes out curved inductive switch.
Further, cooperation is equipped with brake on each motor in the present invention.
Further, heretofore described electric-control system further includes the alarm being connected with PLC Centralized Controllers.
Further, heretofore described electric-control system further includes the wireless remote control being connected with PLC Centralized Controllers
Device.
Compared with the prior art, the present invention has the following advantages：
1）In the present invention, realize crane turning method rely primarily on electric-control system to including crane, outer ring raceway
On Differential Control, before giving the front end motor of inner ring motor group, outer shroud motor group respectively by two independent frequency converters
End motor is run at different rates, it is ensured that its operation angle is identical, and so as to fulfill synchronization, and traditional Servo Control mode is equal
It is to be realized by improveing crane internal mechanical structure, causes structure excessively complicated, since the crane has used frequency converter drive
The technologies such as dynamic, PLC centralized Controls, it is more precisely practical on the basis of structure is simplified, greatly promote the excessively curved smooth degree of complete machine.
2）In the present invention, when crane works in curved areas, the electric-control system is according to the radius ratio of inside and outside loop orbit
Rate, constantly adjust two front end motors respectively in interior outer ring raceway actual motion speed ratio, and by two sets of independent drivings
Inner and outer ring friction speed is adjusted, so as to calculate and rectify a deviation in real time, the final smooth turning for realizing complete machine.
3）In the present invention, by the accurate control of the elements such as frequency converter, encoder realization crane turning, easy to operate,
It is and stable.
4）In the present invention, when running track curve changes or speed of the crane in interior outer ring raceway needs to adjust
It when whole, can be completed by electric-control system, while mechanical structure does not need to do big change, this electric-control system can basis
Different running environment are adjusted flexibly, and control mode is more flexible reliable.
5）In the present invention, the rail of different turning radius combinations can be adapted to by the partial parameters for changing electric-control system
Road, it is applied widely.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and embodiments：
Fig. 1 is the system structure diagram of the present invention.
Specific embodiment
Embodiment：
A kind of specific embodiment of the electric-control system of annular bending track double girder overhead crane of the present invention is shown with reference to attached drawing,
First, there is inner ring raceway with the matched drive train of annular bending track, the annular bending track including being set on crane
And outer ring raceway, the drive train include being separately operable in the inner ring motor group on inner and outer rings track and outer shroud motor group, often
A motor group includes former and later two motors, and cooperation is equipped with brake on each motor.
The electric-control system further includes PLC Centralized Controllers, is connected on each motor and with PLC Centralized Controllers
Speed detector and electric installation is supplied for what crane operation provided power, in the present embodiment, the speed detector is
Speed measuring coder, it is described to include the conductor arranged along annular bending track length direction and connect with power supply for electric installation and be set on
The current-collector of electricity is taken on crane from conductor, in addition, the PLC Centralized Controllers pass through in the connection driving of inner ring frequency converter
Ring motor group connects driving outer shroud motor group by outer shroud frequency converter.
The speed limit induction being connected with PLC Centralized Controllers switch and location sensitive are also equipped in the annular bending track
Switch, the speed limit induction switch include accelerating limit induction switch and slow down spacing inductive switch, the location sensitive
Switch includes into curved inductive switch and goes out curved inductive switch.
The electric-control system further includes the alarm being connected with PLC Centralized Controllers and wireless remote control device.
During the present embodiment specific works：
1）When straight rail area operation of the crane in annular bending track, four electricity of inner ring motor group and outer shroud motor group
Machine is completely in working condition, and inner ring motor group is quickly run by inner ring Frequency Converter Control, outer shroud motor group is by outer shroud frequency converter
The quick operation of control, the inner and outer ring speed of service is identical at this time.
2）When crane enters bending track region from the straight rail region of annular bending track, into deceleration can be passed through before curved
Limit induction switchs, and crane, so as to avoid the impact to track, ensures safety from quickly slow running is become；
When into curved inductive switch detect crane start into it is curved when, the speed measuring coder on each motor is anti-by pulse respectively
Feed PLC Centralized Controllers, by the logic judgment of PLC Centralized Controllers, controlled respectively by two independent frequency converters in
The rear end motor in rear end motor, outer shroud motor group in ring motor group is stopped, and opens simultaneously the system of two rear end motors
Dynamic device, it is ensured that only there are two front end motors to drive crane operation, it is assumed that the radius of inner and outer rings track is respectively r1, r2,
Front end motor operation speed interior, in ring motor group is respectively V1, V2, by interior, ring frequency converter according to V1：V2= r1：R2's
Ratio gives two front end motors with actual motion speed respectively, it can be ensured that its inner and outer ring operation angle is identical, you can realizes same
Step, PLC Centralized Controllers calculate in real time and automatic deviation correction, it is ensured that inside and outside inscription of loop angular displacement deviation δ≤3%, so as to real
Existing complete machine is smooth excessively curved, and angular displacement deviation is excessive caused by the case of uncontrollable, and PLC Centralized Controllers control crane is big
Vehicle is out of service, while alarm sounds, and staff's human intervention is prompted to rectify a deviation manually operation.
3）When crane enters straight rail region from the bending track region of annular bending track, go out curved inductive switch and detect
Crane starts curved, again by the logic judgment of PLC Centralized Controllers, is controlled respectively by two independent frequency converters
The rear end motor in rear end motor, outer shroud motor group in inner ring motor group processed is resumed work；The meeting after straight rail region is entered
By the way that limit induction is accelerated to switch, crane starts to raise speed, until after completely into straight rail region, can quickly transport
Row.
The electric-control system to including crane, Differential Control is carried out in outer ring raceway, pass through two independent frequency conversions
Device gives the front end motor of inner ring motor group respectively, the front end motor of outer shroud motor group is run at different rates, it is ensured that it is transported
Row angle is identical, so as to fulfill synchronization, since the crane has used the technologies such as transducer drive, PLC centralized Controls, in simplification
It is more precisely practical on the basis of structure, greatly promote the excessively curved smooth degree of complete machine.
Certainly the above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow be familiar with technique
People can understand present disclosure and implement according to this, it is not intended to limit the scope of the present invention.It is all according to this hair
The modification that the Spirit Essence of bright main technical schemes is done, should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of electric-control system of annular bending track double girder overhead crane, including being set on crane and annular bending track phase
The drive train of cooperation, it is characterised in that：The annular bending track has inner ring raceway and outer ring raceway, and the drive train includes
It being separately operable in the inner ring motor group on inner and outer rings track and outer shroud motor group, each motor group includes former and later two motors,
The velocity measuring that the electric-control system further includes PLC Centralized Controllers, is connected on each motor and with PLC Centralized Controllers
Device, the PLC Centralized Controllers connect driving inner ring motor group and outer shroud motor group, institute by two independent frequency converters respectively
State the speed limit induction switch for being also equipped with being connected with PLC Centralized Controllers in annular bending track and location sensitive switch.
2. the electric-control system of annular bending track double girder overhead crane according to claim 1, it is characterised in that：The electricity
Control system further includes the electric installation that supplies that power is provided for crane operation, described to include for electric installation along annular bending track length direction
Arrangement and the conductor being connect with power supply and the current-collector for taking electricity from conductor on crane.
3. the electric-control system of annular bending track double girder overhead crane according to claim 1, it is characterised in that：The speed
Degree detection device is speed measuring coder.
4. the electric-control system of annular bending track double girder overhead crane according to claim 1, it is characterised in that：Institute's rheme
Inductive switch is put to include into curved inductive switch and go out curved inductive switch.
5. the electric-control system of annular bending track double girder overhead crane according to claim 1, it is characterised in that：Each electricity
Cooperation is equipped with brake on machine.
6. the electric-control system of annular bending track double girder overhead crane according to claim 1, it is characterised in that：The electricity
Control system further includes the alarm being connected with PLC Centralized Controllers.
7. the electric-control system of annular bending track double girder overhead crane according to claim 1, it is characterised in that：The electricity
Control system further includes the wireless remote control device being connected with PLC Centralized Controllers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810206943.8A CN108217466A (en) | 2018-03-14 | 2018-03-14 | The electric-control system of annular bending track double girder overhead crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810206943.8A CN108217466A (en) | 2018-03-14 | 2018-03-14 | The electric-control system of annular bending track double girder overhead crane |
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| Publication Number | Publication Date |
|---|---|
| CN108217466A true CN108217466A (en) | 2018-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810206943.8A Pending CN108217466A (en) | 2018-03-14 | 2018-03-14 | The electric-control system of annular bending track double girder overhead crane |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109019468A (en) * | 2018-07-13 | 2018-12-18 | 中国核工业二三建设有限公司 | ACP1000 nuclear power station heavy equipment introducing method |
| CN110526121A (en) * | 2019-08-15 | 2019-12-03 | 中铁七局集团有限公司 | Gantry crane operation monitoring system and method when beam field is set on highway curve roadbed |
| CN114084563A (en) * | 2021-11-29 | 2022-02-25 | 苏州彤新诺仓储系统科技有限公司 | Double-drive railway vehicle and differential control method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109019468A (en) * | 2018-07-13 | 2018-12-18 | 中国核工业二三建设有限公司 | ACP1000 nuclear power station heavy equipment introducing method |
| CN109019468B (en) * | 2018-07-13 | 2021-08-17 | 中国核工业二三建设有限公司 | ACP1000 nuclear power station heavy equipment introduction method |
| CN110526121A (en) * | 2019-08-15 | 2019-12-03 | 中铁七局集团有限公司 | Gantry crane operation monitoring system and method when beam field is set on highway curve roadbed |
| CN114084563A (en) * | 2021-11-29 | 2022-02-25 | 苏州彤新诺仓储系统科技有限公司 | Double-drive railway vehicle and differential control method thereof |
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