CN202808236U - Hoisting system of hoisting machine - Google Patents
Hoisting system of hoisting machine Download PDFInfo
- Publication number
- CN202808236U CN202808236U CN 201220387307 CN201220387307U CN202808236U CN 202808236 U CN202808236 U CN 202808236U CN 201220387307 CN201220387307 CN 201220387307 CN 201220387307 U CN201220387307 U CN 201220387307U CN 202808236 U CN202808236 U CN 202808236U
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- frequency convertor
- convertor system
- frequency
- controller
- frequency transformer
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Abstract
A hoisting system of a hoisting machine is disclosed. The hoisting system of the hoisting machine comprises a first frequency transformer system and a second frequency transformer system which are used for driving a motor and a controller which is used for controlling one frequency transformer system of the first frequency transformer system and the second frequency transformer system to drive the motor, wherein when one frequency transformer system of the first frequency transformer system and the second frequency transformer system which are used for driving the motor breaks down and can not perform the normal operation, the controller transmits an enabling signal to the other frequency transformer system of the first frequency transformer system and the second frequency transformer system to drive the motor.
Description
Technical field
The present invention relates to automation field, relate in particular to the winch elevator system that possesses the standby variable frequency device.
Background technology
In general, slab RH vacuum treatment installation is that the molten steel that will process through finery winches to received bit with crane, be transported to the processing position by buggy ladle, vacuum chamber hoisting system drops to vacuum chamber and processes the position from stop bit, the Inserting Tube of vacuum chamber will be immersed in the molten steel this moment, molten steel by lift gas from the ascending pipe " lifting " of Inserting Tube in vacuum chamber, get back to from the downtake of Inserting Tube again and carry out circular treatment in the ladle, vacuum pump system begins to vacuumize simultaneously, molten steel is carried out vacuum degasification, remove the gas impurities in the molten steel, molten steel is purified.In addition, in the treating process also according to molten steel composition do not add alloy in the molten steel in the same way, molten steel composition is carried out alloy fine setting.During processing, can carry out the automatic temperature measurement sampling operation by the thermometric sampling system, perhaps hand-operated temperature-measuring sampling.Be disposed, close vacuum valve, vacuum chamber and vacuum pump system are broken empty, and vacuum chamber hoisting system moves to stop bit with vacuum chamber, and ladle moves to hello silk position and feeds silk and BOTTOM ARGON BLOWING.
The descending operation of aforesaid vacuum chamber is to finish by motor and frequency converter in the vacuum chamber hoisting system.Specifically, motor carries out descending operation to vacuum chamber under the driving of frequency converter.
But, the much hundreds of tons of the weight of vacuum chamber system (for example 280 tons), and the so heavy vacuum chamber system of winch elevator system demand motive, so the winch elevator system breaks down easily, especially the frequency converter in the winch elevator system breaks down easily.In case the fault of frequency converter occurs, will have a strong impact on RH application of vacuum operation, itself in addition can cause and stopped production much 32 hours.
Summary of the invention
In view of the above problems, the invention provides a kind of winch elevator system with standby variable frequency device system, thereby effectively overcome the adverse effect that the fault of frequency converter causes.
Comprise according to a kind of winch elevator system of the present utility model: the first frequency convertor system and the second frequency convertor system that are used for drive motor; Be used for controlling a frequency convertor system of described the first frequency convertor system and the second frequency convertor system to drive the controller of described motor, wherein, when the first frequency convertor system that drives described motor and a frequency convertor system in the second frequency convertor system break down and can't normally move the time, controller sends to another frequency convertor system in the first frequency convertor system and the second frequency convertor system and enables signal and come to drive described motor by described another frequency convertor system.
In addition, described the first frequency convertor system comprises with each frequency convertor system of being connected in the frequency convertor system: the circuit breaker that is connected successively with power supply, fuse, contactless switch and the frequency converter that is used for preventing from occurring at frequency convertor system excess current.
In addition, described controller is programmable logic controller (PLC).
Described winch elevator system also comprises in addition: receive the signal that breaks down about a frequency convertor system the first frequency convertor system and the second frequency convertor system and the annunciator of reporting to the police from described controller.
Among aforesaid the present invention, the winch elevator system has two frequency convertor systems, therefore when a frequency convertor system breaks down, can come drive motor by enabling another frequency convertor system, thereby reduce and prevented the impact that the fault of frequency convertor system operates application of vacuum.
Description of drawings
By the description of embodiment being carried out below in conjunction with accompanying drawing, these and/or other aspect of the present invention and advantage will become clear and be easier to and understand, wherein:
Fig. 1 is the block diagram that illustrates according to the winch elevator system of exemplary embodiment of the present invention.
Fig. 2 is the scheme drawing according to the structure of the standby variable frequency device system of exemplary embodiment of the present invention.
The specific embodiment
Now the embodiment of the invention is described in detail, its example shown in the accompanying drawings, wherein, identical label represents same parts all the time.Below with reference to the accompanying drawings embodiment is described to explain the present invention.
Fig. 1 is the block diagram that illustrates according to the winch elevator system of exemplary embodiment of the present invention.As shown in Figure 1, the winch elevator system according to exemplary embodiment of the present invention comprises primary transducer system 10, standby variable frequency device system 20 and controller 30.
Fig. 2 is the scheme drawing according to the structure of the standby variable frequency device system of exemplary embodiment of the present invention.Shown in Figure 2, exemplary real-time standby variable frequency device system according to the present invention comprises the circuit breaker II that is connected successively with backup power, fuse III, contactless switch IV, the standby variable frequency device I that is used for preventing from occurring in standby variable frequency device system excess current.
Here, as understood by those skilled in the art, the effect of circuit breaker II is to disconnect backup power during to described standby variable frequency device system overhaul and at the described backup power of the complete rear connection of maintenance.
Switch on or off power supply during the function of contactless switch IV.
In addition, as shown in Figure 2, also comprise the triac device V of connection normal operation power supply or backup power according to the standby variable frequency device system of exemplary embodiment of the present invention.
In addition, as the skilled personnel can understand, primary transducer system 10 also can have structure as shown in Figure 2.Both, primary transducer system and standby variable frequency device system can have same or analogous structure.
A frequency convertor system in described controller 30 control primary transducer systems and the standby variable frequency device system drives described motor.Specifically, if when by described primary transducer system 10 drive motor, described primary transducer system 10 breaks down, and then controller 30 is enabled described standby variable frequency device system 20 and driven described motor.
Here, controller 30 can be monitored by mode known in the field the running state of primary transducer system 10 and/or standby variable frequency device system 20.The running state that detects primary transducer system 10 when controller 30 occurs can coming drive motor by enabling another frequency convertor system when unusual.Simultaneously, described controller 30 can break down by reporting to the police prompting user primary transducer system 10 and/or standby variable frequency device system 20, to keep in repair.For this reason, described winch elevator system also can comprise the annunciator (not shown).Described annunciator receives the signal that breaks down about a frequency convertor system the first frequency convertor system and the second frequency convertor system and reports to the police from described controller.
Here, described controller 30 is preferably programmable logic controller (PLC) (PLC), for example, can adopt S5-155U PLC.When controller 30 adopts S5-155U PLC, utilize numeral input for subsequent use, numeral output and the analog input channel of described PLC, carry out handshaking and control with the standby variable frequency device.In addition, according to the elevator operating characteristic, establishment PLC and inverter communication interface routine, for example, separately establishment standby variable frequency device rising in the PLC control program, the function block FB17 and the FB18 that descend improve two interlocked control between the frequency converter, thereby guarantee the reliable operation of standby variable frequency device.
When changing into by standby variable frequency device system 20 (namely, when the standby variable frequency device) driving described motor, the standby variable frequency device will offer controller 30 about " being ready to ", " RUN ", " fault " and status informations such as " opening a sluice gate ", controller 30 can will pass to the standby variable frequency device about control informations such as " braking ", " STOP ", " rising ", " decline ", " at a high speed ", " low speed ", " tightly stopping ", reliably, inerrably drive described motor with assurance standby variable frequency device, thereby realize the normal lifting of vacuum chamber.
The present invention sets up vacuum chamber hoisting standby variable frequency device, and numeral input for subsequent use, numeral output and the analog input channel of the S5-155UPLC that utilizes in usefulness carry out handshaking and control to the standby variable frequency device.According to the elevator operating characteristic, establishment PLC and inverter communication interface routine.The independent establishment standby variable frequency device function block FB17 and the FB18 that rise, descend in the PLC control program, the interlocked control between perfect two frequency converters has guaranteed the reliable operation of standby variable frequency device.
Among aforesaid the present invention, the winch elevator system has two frequency convertor systems, therefore when a frequency convertor system breaks down, can come drive motor by enabling another frequency convertor system, thereby reduce and prevented the impact that the fault of frequency convertor system operates application of vacuum.
Although represented and described some embodiments of the present invention, it should be appreciated by those skilled in the art that in the situation that does not break away from the principle of the present invention that limited its scope by claim and equivalent thereof and spirit, can make amendment to these embodiment.
Claims (4)
1. a winch elevator system is characterized in that, comprising:
The first frequency convertor system and the second frequency convertor system that are used for drive motor;
A frequency convertor system that is used for controlling described the first frequency convertor system and the second frequency convertor system to be driving the controller of described motor,
Wherein, when the first frequency convertor system that drives described motor and a frequency convertor system in the second frequency convertor system break down and can't normally move the time, controller sends to another frequency convertor system in the first frequency convertor system and the second frequency convertor system and enables signal and come to drive described motor by described another frequency convertor system.
2. winch elevator system as claimed in claim 1, it is characterized in that described the first frequency convertor system comprises the circuit breaker that is connected successively with power supply, fuse, contactless switch and the frequency converter that is used for preventing from occurring at frequency convertor system excess current with each frequency convertor system of being connected in the frequency convertor system.
3. winch elevator system as claimed in claim 1 is characterized in that, described controller is programmable logic controller (PLC).
4. winch elevator system as claimed in claim 1 wherein, also comprises: receive the signal that breaks down about a frequency convertor system the first frequency convertor system and the second frequency convertor system and the annunciator of reporting to the police from described controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220387307 CN202808236U (en) | 2012-08-07 | 2012-08-07 | Hoisting system of hoisting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220387307 CN202808236U (en) | 2012-08-07 | 2012-08-07 | Hoisting system of hoisting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202808236U true CN202808236U (en) | 2013-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220387307 Expired - Fee Related CN202808236U (en) | 2012-08-07 | 2012-08-07 | Hoisting system of hoisting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202808236U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104184390A (en) * | 2014-08-12 | 2014-12-03 | 北京天拓四方科技有限公司 | Standby method and standby system for inverters of crane |
-
2012
- 2012-08-07 CN CN 201220387307 patent/CN202808236U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104184390A (en) * | 2014-08-12 | 2014-12-03 | 北京天拓四方科技有限公司 | Standby method and standby system for inverters of crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20160807 |