CN1565956A - Electrical control system for assembling field bridge of rubber tyred gantry crane - Google Patents
Electrical control system for assembling field bridge of rubber tyred gantry crane Download PDFInfo
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- CN1565956A CN1565956A CN 03129501 CN03129501A CN1565956A CN 1565956 A CN1565956 A CN 1565956A CN 03129501 CN03129501 CN 03129501 CN 03129501 A CN03129501 A CN 03129501A CN 1565956 A CN1565956 A CN 1565956A
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- frequency converter
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Abstract
The invention relates to an electric control system of rubber-tyre-gantry crane comprising at least a hoisting transducer, a handcart transducer, at least two cart transducers, a PLC with a CPU framework, a plurality of extension frameworks and remote control modules, a plurality of electric control panels, a handcart rack control panel and a driver's cab console. Said parts of the system are connected by wires. The control method using common DC bus includes supplying the main power source to the hoisting transducer via an air switch to commutate, then supplying the commutated power source to the cart transducer and handcart transducer as DC power source, and the common DC bus is provided with brake unit. The independent control method includes supplying the main power source to all transducers to commutate and invert independently, each of the transducers has independent brake unit and brake resistance. The transducers communicate with the PLC via communication module T-LINK, and configure via communication interfaces. The system has high precision and constant power control function.
Description
Technical field
The present invention relates to hoisting crane, particularly a kind of assembling field bridge electric control system that is used for tire type gantry crane (RTG).
Background technology
The electric control system of tire type gantry crane has many kinds, and electric control system generally adopts control housing, be arranged in the room, owing to be complete import, so time of delivery is long, the expense height.If adopt the FRENIC5000VG Series Frequency Converter of FUJI ELECTRIC, main driver train as the tire type gantry crane control system, with the programmable controller (PLC) of FUJI ELECTRIC as control element, but must engage the ac control system of a large amount of low-voltage electrical apparatuses, could assemble the electric control system that meets the tire type gantry crane operating needs.
Summary of the invention
Task of the present invention provides a kind of improved assembling field bridge electric control system that is used for tire type gantry crane, and it has solved the problem that ac control system that existing electric control system makes because of complete import that expense is higher and must engage a large amount of low-voltage electrical apparatuses could be assembled the electric control system that meets the tire type gantry crane operating needs.
Technical scheme of the present invention is as follows:
An a kind of tire type gantry crane assembling bridge electric control system, it comprises the frequency converter that hoists more than, a dolly frequency converter, two above cart frequency converters, the programmable controller PLC that is furnished with a central processor CPU framework, several extension frameworks and remote control module, several electric controling screens, a trolley frame control panel and a driver's cab control desk, they connect by wiring each other;
Adopt the mode of common DC bus to be, main power source offers the frequency converter that hoists through air switch, by supplying with cart frequency converter and dolly frequency converter after the frequency converter rectification that hoists as direct supply, is furnished with brake unit on common DC bus;
Adopting independently, mode is, main power source provides power supply to all frequency converters, through independent commutation inversion control separately, each frequency converter connects a motor separately, all have coder on the motor, feed back to frequency converter, form vector control system as feedback speed signal, in non-common bus system, each frequency converter has separately independently brake unit and braking resistor;
Frequency converter and programmable controller PLC carry out communication by communication module T-LINK, and are configured by communication interface;
Between each element interconnect and the wiring of external device adopts terminal to connect, each terminal indicates terminal row title and terminal number respectively.
A tire type gantry crane assembling bridge electric control system of the present invention adopts the programmable controller (PLC) of FUJI ELECTRIC as control element, engage the ac control system of a large amount of low-voltage electrical apparatuses, this system adopts the frequency conversion system of complete vector controlled, has very high precision.Tire type gantry crane lifting mechanism of the present invention has the function of permanent power control.
The present invention selects suitable element for use, and the FRENIC5000VG Series Frequency Converter of FUJI ELECTRIC as the frequency converter of vector controlled fully, is used for the principal organ of tire type gantry crane.The F of FUJI ELECTRIC, SX series programmable controller has powerful communication function, can form comparatively succinct, failure-free system with the FRENIC5000VG Series Frequency Converter of FUJI ELECTRIC.The present invention selects failure-free low voltage component ABB, TE, the OMROM element as ancillary system for use.
The principal feature of native system is to use flexibly, new requirement and new technology are applied on the tire type gantry crane, system for automatically correcting as cart, container positioning system (PDS system), tire type gantry crane electronic anti-swinging system carries out design-calculated hoist crane management system (CMS system) etc. according to user's request.Native system has the high characteristics of service precision, adopt hoist, cart uses complete independent frequency converter, makes cart, not have the problem switched between hoisting, and responds fast purpose thereby reach.
In the control system of being made up of two lifting motors, native system also provides very high precision synchronous mode.Because two motor right and wrong are rigidly connected, so require two motors to guarantee absolute also to require just in case asynchronous synchronously, requirement can be corrected automatically.And in the control system of other tire type gantry crane, all do not have this function.Native system has reached this requirement by the mode of synchro control, and the given signal before auto-speed regulating ring (ASR) is regulated is delivered to from frequency converter from primary transducer, guarantees on precision synchronously simultaneously, and compares according to feedback signal, corrects automatically.
Description of drawings
Fig. 1 is the line chart that system of the present invention shows substance.
Fig. 2 is the line chart that system of the present invention shows substance.
Fig. 3 is the line chart that system of the present invention shows substance.
Fig. 4 is the layout circle that system of the present invention shows frequency converter and PLC.
Fig. 5 is the layout circle that system of the present invention shows frequency converter and PLC.
The specific embodiment
Referring to Fig. 1 to Fig. 3, the present invention is an a kind of tire type gantry crane assembling bridge electric control system, requires to be equipped with one or two frequency converters that hoist, a dolly frequency converter, two or four cart frequency converters according to machine design.As required, programmable controller PLC is furnished with a central processor CPU framework, several extension frameworks and remote control module.
Native system comprises an electrical control room or three to four electric controling screens of settling in electric room, trolley frame control panel and driver's cab control panel or joint action table.Each hardware of native system interconnects by wiring.
Fig. 1 to Fig. 3 has shown the line chart of native system, scheme circuit, control path figure and a corresponding subsidiary loop figure.
Native system adopts the mode of common DC bus to be, main power source offers the frequency converter that hoists through an air switch after obtaining from diesel oil-generator set, by supplying with cart frequency converter and dolly frequency converter after the frequency converter rectification that hoists as direct supply.Be furnished with brake unit on common DC bus, when motor is in braking mode or lifting mechanism when descending, bus row's voltage raises, by brake unit with expenditure of energy on braking resistor, in order to avoid diesel oil-generator set is damaged.
Native system adopts independently according to customer requirement that mode is, main power source provides power supply to all frequency converters, through independent commutation inversion control separately.Each frequency converter connects a motor separately, all has coder on the motor, feeds back to frequency converter as feedback speed signal, forms vector control system.In non-common bus system, each frequency converter has separately independently brake unit and braking resistor.
Frequency converter and programmable controller PLC carry out communication by communication module T-LINK, and this kind communication modes makes programmable controller PLC more rapid, convenient to the control of frequency converter.The circuit of system supplymentary mechanism is to carry out design-calculated according to different user demands.
In conjunction with referring to Fig. 4 and Fig. 5, shown in the figure basic configuration of native system, be configured by communication interface.According to the requirement of auxiliary mechanism, the configuration of programmable controller PLC is comparatively flexible.The programmable controller PLC of F, SX series provides various communication interfaces, comprises RS232 interface, ether interface, RS485 interface etc.
The picture frame of the schematic diagram of native system adopts the horizontal read mode, and Y direction is put on capitalization English letter with identical distance from top to bottom, and X-direction is put on Arabic number with identical distance from left to right.The position that can make this element and corresponding principle number intersect in position by X-axis and Y-axis.
On every page of schematic diagram, the control housing title of band frame is put in the upper left corner of each independent component, is used for representing which control housing this element is installed in; The below is the element title, and basic English beginning letter representation with the function that can represent element and title, as the blower air switch that hoists (HOIST BLOWER MOTOR CIRCUITBREAKER) are represented with HBMCB.Be the capacity of this element again,, no matter be debugging or user's maintenance, just can adjust to this element so later on according to this value as the setting valve of thermal relay.
To interconnecting and the wiring of external device between each element, native system adopts terminal to connect, and each terminal is put on terminal row title and terminal number respectively.
On the input and output control chart of programmable controller PLC, the initial sum termination address of model and this module of this module is put on the left side of each module, puts on the sequence number with 0 beginning then on each point.With 16 load modules is example: its initial sum terminates as B0020～B002F, and the n address of ordering is B002n just so, and n is 0～F.
Native system has cabinet type and two kinds of structural shapes of piece electrical house type.Cabinet type system is the characteristics according to hoisting crane, is installed in independently in the control housing, and its advantage is flexible.Piece electrical house type system be with all control system all be installed in an osed top have the door electric room in, its advantage is a compact overall structure.
Native system has also been realized the various demands that the user proposes except the basic function that can realize complete machine, as cart 360 degree commentaries on classics, cart jacking function, cart correction etc.Simultaneously, native system also is furnished with the management system of complete machine.
Claims (1)
1. a tire type gantry crane is assembled a bridge electric control system, it is characterized in that, it comprises the frequency converter that hoists more than, a dolly frequency converter, two above cart frequency converters are furnished with the programmable controller PLC of a central processor CPU framework, several extension frameworks and remote control module, several electric controling screens, a trolley frame control panel and a driver's cab control desk, they connect by wiring each other;
Adopt the mode of common DC bus to be, main power source offers the frequency converter that hoists through air switch, by supplying with cart frequency converter and dolly frequency converter after the frequency converter rectification that hoists as direct supply, is furnished with brake unit on common DC bus;
Adopting independently, mode is, main power source provides power supply to all frequency converters, through independent commutation inversion control separately, each frequency converter connects a motor separately, all have coder on the motor, feed back to frequency converter, form vector control system as feedback speed signal, in non-common bus system, each frequency converter has separately independently brake unit and braking resistor;
Frequency converter and programmable controller PLC carry out communication by communication module T-LINK, and are configured by communication interface;
Between each element interconnect and the wiring of external device adopts terminal to connect, each terminal indicates terminal row title and terminal number respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03129501 CN1288065C (en) | 2003-06-25 | 2003-06-25 | Electrical control system for assembling field bridge of rubber tyred gantry crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03129501 CN1288065C (en) | 2003-06-25 | 2003-06-25 | Electrical control system for assembling field bridge of rubber tyred gantry crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1565956A true CN1565956A (en) | 2005-01-19 |
| CN1288065C CN1288065C (en) | 2006-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03129501 Expired - Fee Related CN1288065C (en) | 2003-06-25 | 2003-06-25 | Electrical control system for assembling field bridge of rubber tyred gantry crane |
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| Country | Link |
|---|---|
| CN (1) | CN1288065C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102211739A (en) * | 2011-05-26 | 2011-10-12 | 河南省郑起起重设备有限公司 | Basic programming system (BPS) automatic deflection correction method and system for crane cart |
| CN101789633B (en) * | 2010-01-14 | 2012-08-22 | 同济大学 | Electric hoist energy storing device based on ultra capacitor |
| CN104030165A (en) * | 2014-03-10 | 2014-09-10 | 天津港第四港埠有限公司 | An electronic control system of a portal slewing crane |
| CN104386585A (en) * | 2014-12-08 | 2015-03-04 | 润邦卡哥特科工业有限公司 | Tilting driving control device for RTG lifting appliance |
| CN108217466A (en) * | 2018-03-14 | 2018-06-29 | 法兰泰克重工股份有限公司 | The electric-control system of annular bending track double girder overhead crane |
| CN112479039A (en) * | 2020-11-30 | 2021-03-12 | 上海辛格林纳新时达电机有限公司 | Track crane control system |
-
2003
- 2003-06-25 CN CN 03129501 patent/CN1288065C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101789633B (en) * | 2010-01-14 | 2012-08-22 | 同济大学 | Electric hoist energy storing device based on ultra capacitor |
| CN102211739A (en) * | 2011-05-26 | 2011-10-12 | 河南省郑起起重设备有限公司 | Basic programming system (BPS) automatic deflection correction method and system for crane cart |
| CN104030165A (en) * | 2014-03-10 | 2014-09-10 | 天津港第四港埠有限公司 | An electronic control system of a portal slewing crane |
| CN104386585A (en) * | 2014-12-08 | 2015-03-04 | 润邦卡哥特科工业有限公司 | Tilting driving control device for RTG lifting appliance |
| CN108217466A (en) * | 2018-03-14 | 2018-06-29 | 法兰泰克重工股份有限公司 | The electric-control system of annular bending track double girder overhead crane |
| CN112479039A (en) * | 2020-11-30 | 2021-03-12 | 上海辛格林纳新时达电机有限公司 | Track crane control system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1288065C (en) | 2006-12-06 |
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Granted publication date: 20061206 |