CN2830362Y - Tower crane turning gear controlled by converter - Google Patents
Tower crane turning gear controlled by converter Download PDFInfo
- Publication number
- CN2830362Y CN2830362Y CN 200520091691 CN200520091691U CN2830362Y CN 2830362 Y CN2830362 Y CN 2830362Y CN 200520091691 CN200520091691 CN 200520091691 CN 200520091691 U CN200520091691 U CN 200520091691U CN 2830362 Y CN2830362 Y CN 2830362Y
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- China
- Prior art keywords
- frequency converter
- gear
- rotary disk
- main frame
- control
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- Expired - Fee Related
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Abstract
The utility model relates to a tower crane turning gear controlled by a converter. An output control signal of a turning controller is transferred to a frequency converter, an output frequency signal of the frequency converter is transferred to motors which drive a turning disk by a speed reducer and the turning disk drives a tower boom to do a turning motion. The frequency converter forms the main and auxiliary synchronous control by one mainframe frequency converter and three auxiliary frame frequency converters, the mainframe frequency converter uses a speed controlling method and the auxiliary frame frequency converters uses a torque controlling method. Thus, the output torque of the four frequency converters is same and the four motors reach the synchronous control. The utility model is a tower crane turning gear controlled by a converter, which has the advantages of simple structure, high productive efficiency, reliable work of the system, high speed for starting a vehicle, big torque for starting the vehicle and stable vehicle starting and stopping. The utility model can satisfy the requirements of the turning control of the building tower crane at present markets.
Description
Technical field
The utility model belongs to tower crane revolution control technology, particularly a kind of tower crane turning gear of Frequency Converter Control.
Background technology
At present, domestic tower crane rotation control device for building adopts long-term stalling torque electric machine control formula, common electric machine to add band-type brake control formula usually.But, with upper controller had that vehicle speed is slow, the cycling start torque is little, shortcoming such as cycling start and parking are not steady.
The utility model content
The purpose of this utility model is the technical matters that exists in the existing tower crane revolution control, provide a kind of and have simple in structure, reliable operation, rise that vehicle speed is fast, torque big, the tower crane turning gear of cycling start and parking pulsation-free Frequency Converter Control, can satisfy the needs of existing market tower crane revolution for building control.
The utility model comprises rotation controller, frequency converter, electrical motor, retarder, rotary disk, the rotary disk gear, reducer gear, the main frame frequency converter, the slave frequency converter, the output control signal of rotation controller sends frequency converter to, the output frequency signal of frequency converter sends electrical motor to, electrical motor drives rotary disk through retarder, rotary disk drives the tower arm and rotates, be fixed with the rotary disk gear on the rotary disk, the rotary disk gear is provided with reducer gear, electrical motor is fixed on the reductor, reducer gear is fixed on the output shaft of reductor, and described reducer gear and rotary disk gear are that five equilibrium is arranged;
Described frequency converter is by the main frame frequency converter, the slave frequency converter constitutes, wherein one is the main frame frequency converter, three is the slave frequency converter in addition, the main frame frequency converter adopts speed control method, by rising that control switch is sent, stop sending the main frame frequency converter to speed signal, the dtc signal of main frame frequency converter output is real-time transmitted to the slave frequency converter by optical fiber, the slave frequency converter adopts the torque mode, reception comes from the dtc signal of main frame frequency converter, the output torque that guarantees four frequency converters is identical, and four electrical motors adopt optical fiber to connect to synchro control between four frequency converters, communication speed is 12Mbit/s
The utlity model has advantages such as simple in structure, that production efficiency is high, system works is reliable, play that vehicle speed is fast, the cycling start torque is big, cycling start and parking are steady, can satisfy the needs of existing market tower crane revolution for building control.
Description of drawings
Fig. 1 is the utility model structural principle block diagram;
Fig. 2 is a rotary disk gear mechanism scheme drawing;
Fig. 3 is a frequency converter principal and subordinate synchro control structural principle scheme drawing;
Among the figure: 1 rotation controller, 2 frequency converters, 3 electrical motors, 4 reductors, 5 rotary disks, 6 rotary disk gears, 7 reducer gears, 8 main frame frequency converters, 9 slave frequency converters.
The specific embodiment
In conjunction with example the technical solution of the utility model is described further.
As shown in the figure, a kind of Frequency Converter Control tower crane turning gear comprises rotation controller 1, frequency converter 2, electrical motor 3, retarder 4, rotary disk 5, rotary disk gear 6, reducer gear 7, main frame frequency converter 8, slave frequency converter 9.
As shown in Figure 1, the start-stop signal of the output of tower crane rotation controller 1, speed control signal, mechanical hatching gate signal send Vacon frequency converter 2 to, the rotating speed at the frequency signal control motor 3 of Vacon frequency converter 2 outputs, electrical motor 3 drives retarder 4, retarder 4 drives rotary disk 5 and rotates, and rotary disk 5 drives the tower arm and does gyroscopic movement.
As shown in Figure 2, rotary disk gear 6 on the rotary disk 5 is driven by four reducer gears 7, four reducer gears 7 are arranged for five equilibrium with rotary disk gear 6, reducer gear 7 is fixed on the output shaft of reductor 4, reductor 4 is driven by electrical motor 3, and four electrical motors 3 carry out principal and subordinate's synchro control by four frequency converters respectively.
As shown in Figure 3, Vacon frequency converter 2 is by main frame frequency converter 8, slave frequency converter 9 formations are carried out principal and subordinate's synchro control, wherein one is main frame frequency converter 8, three is slave frequency converter 9 in addition, main frame frequency converter 8 adopts speed control method, sent by control switch, stop giving main frame frequency converter 8 with speed signal, main frame frequency converter 8 sends the dtc signal of frequency converter output to slave frequency converter 9 in real time by optical fiber, slave frequency converter 9 adopts the torque mode, reception comes from the dtc signal of main frame frequency converter 8, the output torque that guarantees four frequency converters is identical, and four electrical motors are to synchro control.
Claims (3)
1, a kind of tower crane turning gear of Frequency Converter Control, it is characterized in that, comprise rotation controller, frequency converter, electrical motor, retarder, rotary disk, the rotary disk gear, reducer gear, the main frame frequency converter, the slave frequency converter, the output control signal of rotation controller sends frequency converter to, the output frequency signal of frequency converter sends electrical motor to, electrical motor drives rotary disk through retarder, rotary disk drives the tower arm and rotates, be fixed with the rotary disk gear on the rotary disk, the rotary disk gear is provided with reducer gear, electrical motor is fixed on the reductor, and reducer gear is fixed on the output shaft of reductor.
2, the tower crane turning gear of a kind of Frequency Converter Control as claimed in claim 1, it is characterized in that, described frequency converter is by the main frame frequency converter, the slave frequency converter constitutes, wherein one is the main frame frequency converter, three is the slave frequency converter in addition, the main frame frequency converter adopts speed control method, by rising that control switch is sent, stop giving the main frame frequency converter with speed signal, the dtc signal of main frame frequency converter output is real-time transmitted to the slave frequency converter by optical fiber, the slave frequency converter adopts the torque mode, reception comes from the dtc signal of main frame frequency converter, guarantees that the output torque of four frequency converters is identical, and four electrical motors are to synchro control.
3, the tower crane turning gear of a kind of Frequency Converter Control as claimed in claim 1 is characterized in that, described reducer gear and rotary disk gear are that five equilibrium is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520091691 CN2830362Y (en) | 2005-07-07 | 2005-07-07 | Tower crane turning gear controlled by converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520091691 CN2830362Y (en) | 2005-07-07 | 2005-07-07 | Tower crane turning gear controlled by converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2830362Y true CN2830362Y (en) | 2006-10-25 |
Family
ID=37135287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520091691 Expired - Fee Related CN2830362Y (en) | 2005-07-07 | 2005-07-07 | Tower crane turning gear controlled by converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2830362Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758726A (en) * | 2011-04-25 | 2012-10-31 | 华锐风电科技(集团)股份有限公司 | Variable pitch control system, variable pitch control method and wind generating set |
| CN102777319A (en) * | 2011-05-12 | 2012-11-14 | 苏州特谱风能技术有限公司 | Yaw control system for wind power generation and control method thereof |
| CN102807159A (en) * | 2012-08-13 | 2012-12-05 | 中联重科股份有限公司 | Tower crane rotation control equipment, system and method and tower crane |
| CN103879913A (en) * | 2014-03-06 | 2014-06-25 | 中联重科股份有限公司 | Method, equipment and system for controlling rotary mechanism of tower crane |
| CN107651569A (en) * | 2017-09-22 | 2018-02-02 | 深圳市正弦电气股份有限公司 | A kind of control method and control system of crane rotation mechanism |
-
2005
- 2005-07-07 CN CN 200520091691 patent/CN2830362Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758726A (en) * | 2011-04-25 | 2012-10-31 | 华锐风电科技(集团)股份有限公司 | Variable pitch control system, variable pitch control method and wind generating set |
| CN102777319A (en) * | 2011-05-12 | 2012-11-14 | 苏州特谱风能技术有限公司 | Yaw control system for wind power generation and control method thereof |
| CN102777319B (en) * | 2011-05-12 | 2015-01-21 | 苏州特谱风能技术有限公司 | Yaw control system for wind power generation and control method thereof |
| CN102807159A (en) * | 2012-08-13 | 2012-12-05 | 中联重科股份有限公司 | Tower crane rotation control equipment, system and method and tower crane |
| CN102807159B (en) * | 2012-08-13 | 2014-09-17 | 中联重科股份有限公司 | Tower crane rotation control equipment, system and method and tower crane |
| CN103879913A (en) * | 2014-03-06 | 2014-06-25 | 中联重科股份有限公司 | Method, equipment and system for controlling rotary mechanism of tower crane |
| CN103879913B (en) * | 2014-03-06 | 2016-03-02 | 中联重科股份有限公司 | To the method, apparatus and system that the swing type mechanism of tower crane controls |
| CN107651569A (en) * | 2017-09-22 | 2018-02-02 | 深圳市正弦电气股份有限公司 | A kind of control method and control system of crane rotation mechanism |
| CN107651569B (en) * | 2017-09-22 | 2019-05-07 | 深圳市正弦电气股份有限公司 | A kind of control method and control system of crane rotation mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |