CN203419683U - Integrated platform for electrical system of crane - Google Patents
Integrated platform for electrical system of crane Download PDFInfo
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- CN203419683U CN203419683U CN201320535299.1U CN201320535299U CN203419683U CN 203419683 U CN203419683 U CN 203419683U CN 201320535299 U CN201320535299 U CN 201320535299U CN 203419683 U CN203419683 U CN 203419683U
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Abstract
The utility model discloses an integrated platform for an electrical system of a crane. The integrated platform comprises an integrated power drive system and a safety driving and control system; the integrated power drive system comprises a power supply box, a public direct-current bus and a plurality of variable-frequency devices; an inlet wire control device and a rectifier which is connected onto the inlet wire control device are arranged inside the power supply box, and the inlet wire control device is connected with an on-site power supply system of the crane; the variable-frequency device is an inverter and connected with the rectifier through the direct-current bus; the safety driving and control system comprises a crane safety driving device, a first sensor group which is connected onto the crane safety driving device and used for collecting weather information and a second sensor group which is used for collecting the safety information of the crane; the crane safety driving device is connected with the variable-frequency device. The integrated power drive system unifies the power supply and is centralized to install, so that the equipment resource and the space resource can be adequately utilized, and convenience in installation, debugging and maintenance can be realized; and the safety driving and control system is complete in function, compact in structure, convenient to use and comprehensive in acquired information.
Description
Technical field
The utility model relates to hoisting crane electric driving force and drives field and control technology field, relates in particular to the integrated platform of a kind of hoisting crane electric system.
Background technology
Hoisting crane is frequent many action elevator machineries that weight was carried, rotated on the spot, transports to a kind of vertical-lift within the specific limits, level, claims again crane, belongs to material carrying machine.The work characteristics of hoisting crane is to do intermittent exercise, and rule hoists/lands, and in a working cycle, the corresponding mechanism of the action such as feeding, migration, unloading is alternation.The integrated platform of hoisting crane electric system is to make hoisting crane normal operation, the indispensable important system of safe operation, comprise two large divisions, one is to provide the power-driven system that drives hoisting crane motion, the 2nd, the safety operation control system for operating personal to hoisting crane implementation and operation, control.
Current hoisting crane power-driven system is generally by prominent lifting mechanism power supply as a whole, DC bus is directly connected in the output of the frequency converter that hoists, other subsystems are as the mode of the common DC buss of employing such as swing type mechanism, luffing mechanism, large mechanism of car, frequency converter is accessed to DC bus, and between each equipment, separate dispersion is installed.This system architecture exists following deficiency:
One, whole system shortage considers for the actual of tackling system object specially in equipment aspect, only on existing product basis, simple connection combines, the design integration of more not deep equipment level face, when each subsystem forms entire combination, by the power supply as a whole of prominent lifting mechanism in subsystem, the dispersed arrangement form that public direct supply connects, restricted by existing installation, do not have independence, and each subsystem is installed and is disperseed, without being integrated into the possibility of integral product, thereby cause complete machine power control system equipment performance not high;
Two, power supply power match is unreasonable, easily cause communication power supply overload and the waste of other power supply: the whole output power of system is only the power of subsystem of hoisting, when system works, as long as while having the two above subsystems of mechanism that comprise lifting mechanism to move simultaneously, power supply rectifying part is overload likely just; Meanwhile, because each subsystem is all used ready-made frequency converter, the ac rectifying power source of other mechanism's frequency converters except lifting mechanism part is with regard to wrist-off, thereby causes the waste of unreasonable allocation;
Three, installation site is unreasonable, the installation disperseing is safeguarded and is all made troubles to field apparatus installation, system debug, current maintenance: due to the machinery-free contact separately of each subsystem, on-the-spot actual installation all separately nearby near mechanical mechanism separately position install nearby, completely in disperse state, at a distance of about more than ten meters, have even tens meters.To equipment, install, system debug, current maintenance is safeguarded and is all brought very big inconvenience, particularly to daily attention, brings more inconveniences and danger;
Five, common sparing can not be installed concentratedly, need to separately ward off space, cause space waste and install unreasonablely, system is difficult to expansion, if consider, multiple drive form mixes difficulty and will greatly increase: because the public part of system is all served as by the frequency converter that hoists, other public part, as brake unit/resistance, DC/DC conv, PUR feedback device etc. is all difficult to unified installation, must separately ward off space, cause and install unreasonablely, the problem such as is not concentrated in position; If it is integrated to use multiple drive modes to mix, difficulty will further strengthen;
Six, the dispersion of system is installed to system wiring and is brought waste and increase labile factor: due to the dispersiveness of whole system, its electrical source of power cable, control cables, signal cable wiring all extremely disperses loaded down with trivial details, difficulty and the cost waste of Installation and Debugging maintenance maintenances have been caused equally, also make system hide some dangers for, increase its fault rate and fugitiveness simultaneously.
And the safety operation control system of hoisting crane is to be based upon on PLC+PROFIBUS platform base at present, that a standard is provided by supplier completely and limits, hardware Complete customization, the development platform that software carries out limited programing function limitation is the scheme under basic general-purpose platform condition, it is low that the crane control system of developing under existing equipment level development platform has specificity, communication efficiency is not high, specific aim is poor, integrated level is low, configuring redundancy, sexual valence ratio, expansion difficulty, use off-the-shelf equipment, cannot come into the market to wait not enough as customed product, there is following obvious problem in it:
One, existing crane safety pilot instrument, general operating handle, PLC and the read-out of adopting controlled and shows, the control that each mechanism of hoisting crane moves mainly realizes by control operation handle, mode is single, operating mode is inflexible, operator's experience is required to high (without steer mode automatically), and operating handle belongs to that engineering goods are various in style, expensive and fault rate is high;
Two, the information information less, that read-out shows that existing crane safety pilot instrument can obtain is less, and reaction is slow, without functions such as security monitoring, climatic information, failed storage, assistant analysis, enough information is comprehensively provided in time can not to operating personal;
Three, existing crane safety pilot instrument is by RS485, PROFIBUS to driver of elevator sending controling instruction, and the data of transmission are few, data transmission is slow.
Utility model content
The technical problems to be solved in the utility model is just: the problems referred to above that exist for prior art, the utility model provides a kind of hoisting crane electric system integrated platform, its integrated power-driven system is unified to be powered, installs concentratedly, make full use of device resource and space resources, be convenient to Installation and Debugging and maintenance; Its safe driving control system complete function, compact conformation, easy to use, obtaining information is comprehensive.
For achieving the above object, the integrated platform of hoisting crane electric system of the present utility model, comprise the integrated power drive line safe driving control system of unifying, above-mentioned integrated power-driven system comprises power supply box, public direct-flow bus wire and a plurality of for driving the converter plant of variable-frequency motor: in power supply box, be provided with wire inlet control device, be connected to the rectifier on wire inlet control device, wherein, wire inlet control device is connected with the on-the-spot electric power system of hoisting crane; Converter plant is inverter, by public direct-flow bus wire, is connected with rectifier; Above-mentioned safe driving control system comprises crane safety pilot instrument, for gathering the first sensor group of climatic information, for gathering the second sensor group of crane safety information, first sensor group, the second sensor group are all connected on crane safety pilot instrument; Above-mentioned crane safety pilot instrument is connected with converter plant.Above-mentioned wire inlet control device is disconnector, circuit breaker, the contactless switch connecting successively, and disconnector is connected with the on-the-spot electric power system of hoisting crane, wherein; Circuit breaker also can be replaced by quick acting fuse; Between above-mentioned short circuiting device and contactless switch, can also connect a three-phase input AC reactor; Between contactless switch and rectifier, can also connect an electromagnetic interface filter; Above-mentioned safe driving device is that operating personal is controlled hoisting crane work, stopped the control setup that ,Ge mechanism moves.In this programme, on the one hand, each subsystem of integrated power-driven system (lifting mechanism, swing type mechanism, luffing mechanism, mechanism etc. calls a taxi) is connected to by public direct-flow bus wire on the rectifier of power supply box, in the on-the-spot electric power system of power supply box access hoisting crane, be the unified power supply of each subsystem again, therefore, the converter plant of each subsystem can be controlled and AC rectification function by cutting inlet wire, fully saves device resource; In addition, power supply box by the devices such as the shared wire inlet control device of subsystems, rectifier unified integrated, be arranged near hoisting box, save space resources; In addition other equipment on power supply box, inverter and circuit also can be installed concentratedly at same position, be convenient to installation, debugging and the maintenance of line arrangement and equipment, also reduced the fugitiveness of system, and it is integrated to be also convenient to later stage multiple drive modes mixing simultaneously.On the other hand, safe driving control system is provided with two sensor groups for gathering climatic information and crane safety information, and wherein, the sensor that gathers climatic information comprises optical sensor, temperature sensor, humidity sensor, wind speed wind direction sensor etc.; The sensor that gathers crane safety information comprises lift heavy sensor, for measuring the amplitude sensor of hoisting crane brachium, for measuring the height sensor, degreeof turn sensor, torque arm subtended angle sensor, position limit switch, door lock safety switch etc. of crane height; The information of these sensor collections will be shown to crane operation personnel by crane safety pilot instrument, and participate in system security controls, for operating personal provides enough information supports, be convenient to understand in time hoisting crane state and will make next step decision-making.
As further improvement of the utility model, above-mentioned integrated power-driven system also comprises rack, above-mentioned power supply box, public direct-flow bus wire, the equal integrated installation of inverter are in rack, concentrate near operator's compartment position and install, power/control/signal cable is concentrated, facilitate line arrangement, also can effectively reduce because of installation disperses, complex circuit is brought systematic jitters and fault rate simultaneously.When actual field is installed, if part inverter need to, when install in the place away from from operator's compartment, this part inverter can be shifted out to rack, but entire system structure not change yet.
Further, above-mentioned crane safety pilot instrument comprises central processing unit, controls display unit, control command output unit, memory cell, AD converting unit, digital signal input/output interface, wherein: central processing unit is connected respectively with control display unit, control command output unit, memory cell, AD converting unit, digital signal input/output interface; Control command output unit is also connected with converter plant, and to converter plant output control command, receiving status information, finally realizes the integrated platform of whole hoisting crane electric system.In this programme, digital signal input/output interface and AD converting unit are all for first sensor group and the second sensor group access crane safety pilot instrument, if the output signal of sensor is digital signal, by digital signal input/output interface input crane safety pilot instrument, if analog signal, by AD converting unit input crane safety pilot instrument.Generally speaking, digital signal input/output interface is connected with micro climate sensors such as optical sensor inside and outside operator's compartment, temperature sensor, humidity sensor, wind speed wind direction sensors, the micro climate data that receiving sensor gathers, and send to central processing unit for processing, cell stores, then by controlling display unit, be shown to operating personal, central processing unit proposes warning or interrupt run, emergency to complete machine work after limit is judged simultaneously, the lift heavy sensor arranging on AD converting unit and hoisting crane, amplitude sensor, height sensor, degreeof turn sensor, torque arm subtended angle sensor, travel switches etc. are connected, receive the moment that these sensors gather, brachium, angle of revolution, torque arm subtended angle, hang height, the analog signal of the security information such as end position, and after being converted to digital signal, such analog signal sends to central processing unit for processing, memory stores, then by controlling display unit, be shown to operating personal, if above-mentioned micro climate sensor outputting analog signal, also access AD converting unit, after analogue to digital conversion, send to central processing unit.In this programme, memory cell can also can be stored all kinds of accident informations for the storage of Various types of data, and specialized database is convenient to carry out assistant analysis and auxiliary maintaining.The said structure of the crane safety pilot instrument in this programme makes it have the functions such as monitoring is controlled, security monitoring, dynamically demonstration, accident storage, assistant analysis, comprehensive driving.
Further, in above-mentioned power supply box, be also provided with for consuming the energy consuming brake of the regenerative electric energy of variable-frequency motor generation, this energy consuming brake comprises brake unit and braking resistor, after brake unit and braking resistor series connection, be connected in parallel on public direct-flow bus wire, when the decline of craning weight of same unit, variable-frequency motor produce regenerative electric energy, brake unit conducting accesses loop by braking resistor, consumes regenerative electric energy.
Further, in above-mentioned power supply box, be also provided with the storage brake device being connected in parallel on public direct-flow bus wire, this storage brake device is ultracapacitor, and the regenerative electric energy that variable-frequency motor produces when lift heavy unit is declined stores, and when not producing regenerative electric energy, supplies with variable-frequency motor.
Further, in above-mentioned power supply box, be also provided with the energy back feed device being connected in parallel on public direct-flow bus wire, this energy back feed device comprises two input ends and three mouths, two input end respectively with public direct-flow bus wire just, negative pole is connected, two input ends respectively connect a general DC busbar, three mouths are connected with 3 input ends of wire inlet control device respectively, be connected with three mouths of the on-the-spot electric power system of hoisting crane, the regenerative electric energy feedback (now electric energy meter reversion) in wire inlet control device place or electric power system electrical network that when lift heavy unit is declined, variable-frequency motor produces, save the energy.
Further, above-mentioned crane safety pilot instrument also comprises communication unit and the alarm unit being connected with central processing unit, and communication unit comprises ethernet communication module, remote wireless communication module, short-range wireless communication module.Above-mentioned remote wireless communication module can be one or more in 2G wireless communication module, 3G wireless communication module, 2.5G wireless communication module, 4G wireless communication module; Above-mentioned short-range wireless communication module can be one or more in the modules such as WIFI module, Zigbee module, bluetooth module, NFC module.Wherein, ethernet communication module, remote wireless communication module, WIFI module are for accessing Internet, and several modes can adopt simultaneously, realizes wired and wireless remote seamless remote measuring and controlling; Other short-range wireless communication module, for the wireless connections of on-the-spot each equipment room, forms on-site wireless tracking and command network.Above-mentioned alarm unit is timely early warning/warning when et out of order, and this alarm unit can be combined aural and visual alarm, screen display, also can other conventional annunciators; In the time of early warning/warning, also corresponding direction, deceleration, parking control etc. will be carried out under the control of central processing unit.
Further, above-mentioned control display unit is touch display screen, along with popularizing of touch display screen equipment, touch display screen cost constantly reduces, and use also very convenient, touch display screen has Presentation Function simultaneously and controls function, two kinds of functions realize respectively data output and control command input, especially in the control that realizes hoisting crane, adopt touch display screen can replace the heavy expensive manual joint action table of tradition to control, control convenient reliable and economic and practical, and it can adopt vector technique of display to carry out part amplification when observing the situation of hoisting crane and observing image data, observe clearlyer.
Further, above-mentioned control command output unit comprises CAN communication unit and DA converting unit, and CAN communication unit comprises the CAN controller being connected with central processing unit and is connected to the CAN transceiver on CAN controller, realizes efficient local communication; DA converting unit is connected with central processing unit, quantity is at least 4,4 DA converting units can be converted to variable voltage by control command, send to respectively 4 can receive inverter/frequency converter that analog signal controls or other do not possess the actuating equipment of serial interface, adopt parallel mode control inverter/frequency converter, make the crane safety pilot instrument of this programme can be applicable to the control of polytype inverter/frequency converter simultaneously, improve commonality.The existing serial ports output of crane safety pilot instrument of this programme, can with many extraneous controlled plants addressing mode serial communication (as modern inverter/frequency converter) of encoding, there is again the parallel I/O interface of a plurality of expansions, can be to a plurality of controlled plant parallel control, and the two can carry out simultaneously, compatible, this is just for the old equipment (as OMD, RCV, LMD, DC speed regulation etc.) that those do not possess serial communication is provided by the controlled means that provide, no matter the old and new's equipment or combination drive structure can be implemented effective control, and no matter serial/parallel can be controlled arbitrarily.
Further, be also provided with master cock on above-mentioned inverter, buncher is connected with the mouth of inverter by this master cock.In this programme, an inverter can connect a plurality of variable-frequency motors by master cock, due to general DC busbar, can take into full account system load feature, adopt the means such as control, timesharing control simultaneously, realize the Function Extensions such as an inverter while Dai Tong mechanism multiple electric motors, inverter timesharing traction two mechanism's motors, further bring into play equipment potential, increase operation rate, reduce system cost.
With respect to prior art, the utlity model has following advantage and beneficial effect:
1, in integrated power-driven system of the present utility model, after the source of AC access that power supply box is supplied with the on-the-spot electric power system of hoisting crane, by rectifier rectification, be from DC bus, to export after direct current (DC), converter plant adopts inverter to substitute frequency converter of the prior art, AC rectification function in frequency converter in former each subsystem and the unification of inlet wire control part are completed by power supply box, simplify frequency conversion device structure, avoided the ac rectifying power source part of the mechanism of other except lifting mechanism frequency converter in prior art with regard to wrist-off, to cause the waste of unreasonable allocation, be that the utility model is concentrated public part, delete redundancy, can effectively save device resource,
2, the utility model is integrated into one in power supply box by the utility device in the systems such as the wire inlet control device in integrated power-driven system, rectifier, brake system (including but not limited to energy consuming brake, storage brake device, energy back feed device etc.), additional supply (source of AC, direct supply) and installs, as a separate component, with each subsystem independent design, can effectively save space resources;
3, the utility model is also arranged on the power supply box in integrated power-driven system, public direct-flow bus wire, inverter in same rack, integrated, concentrated near the installation of operator's compartment position, and power/control/signal cable is concentrated, and facilitates line arrangement; Can also make installation, the debugging of equipment and safeguard more conveniently, can effectively reduce the installation and maintenance cost of system; Also can effectively reduce because of installation disperses, complex circuit is brought systematic jitters and fault rate simultaneously;
4, integrated power-driven system of the present utility model cutting redundancy, cost-saving after, add a plurality of brake system such as the applicable energy consuming brake of system, storage brake device, energy back feed device, these systems can option and installment, constant or slightly raise under prerequisite at cost, obvious elevator system performance, finally reach the object that improves letter valency ratio, and the brake system maximum power design that all may occur by system, reliable to guarantee security of system;
5, power supply box of the present utility model also can be equipped with polytype additional supply, can support other each mechanism's driving power (each frequency converter and other driving arrangement) with cabinet erection, form the electric power system of an entire system configuration, also can support other the multiple powered version except frequency converter, be convenient to later stage multiple drive modes and mix integrated;
6, each subsystem of the present utility model shares common DC bus, and inverter output end is also provided with master cock, an inverter can connect a plurality of variable-frequency motors by master cock, can take into full account system load feature, adopt the means such as control, timesharing control simultaneously, realize a band many (inverter Dai Tong mechanism multiple electric motors), singly drag Function Extensions such as two (inverter timesharing traction two mechanism's motors) simultaneously, further performance equipment potential, increase operation rate, reduce costs;
7, the power driven scheme object-oriented of integrated power-driven system of the present utility model, not limited to by off-the-shelf equipment, cross over existing frequency converter function and fixed configurations, its internal structure is carried out to redistribution integration by overall system requirement, make it to adapt to the requirement of overall system architecture, real object-oriented, directly in the face of applying.
8, crane safety pilot instrument of the present utility model is provided with digital signal input/output interface and AD converting unit, can receive digital signal and analog signal that a plurality of sensors are sent to, the data message that receives and show is many, can participate in system security controls and provide enough information to operational applications, for operating personal overall understanding hoisting crane the present situation, also convenient operation maintainer judges decision-making and carries out next step operation, possesses multichannel output control signal simultaneously;
9, the display unit of crane safety pilot instrument of the present utility model and control unit adopt touch display screen, and its use is convenient, operation is more flexible, safe and efficient, powerful, life;
10, crane safety pilot instrument of the present utility model is provided with alarm unit, and observing and controlling develops simultaneously, and has improved safety of the present utility model; Also be provided with communication unit, support wire communication, wireless telecommunication, wireless, short-range communication, can realize long-haul telemetry control, also support the wireless proximity of field apparatus to connect;
11, crane safety pilot instrument of the present utility model is provided with CAN communication unit and DA converting unit, control command can be exported by full can bus, Serial Control, connect simple, speed of transmission is fast, the data volume of transmission is large, and error correction is strong, and efficiency is high can support the real-time field control effect of hoisting crane and demand well; Also can support parallel control by DA converting unit output, support parallel control and serial output to control simultaneously, no matter the old and new's equipment or combination drive structure can be implemented effective control, and commonality is good;
12, crane safety pilot instrument of the present utility model has the functions such as monitoring is controlled, safety monitoring, dynamically demonstration, accident storage, assistant analysis, comprehensive driving;
13, integrated power-driven system of the present utility model is arranged near operator's compartment, safe driving control system is arranged in operator's compartment, the two installation site is very close, hoisting crane electric system is totally concentrated, again integrated, obviously promote the equipment characteristic of machine system, realized the integrated platform of hoisting crane electric system;
14, the utility model is simple and compact for structure, specificity is strong, integrated cost is low, and the extensibility of system is good.
accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of energy consuming brake;
Fig. 3 is the structural representation of storage brake device.
Marginal data: 1, power supply box; 2, public direct-flow bus wire; 3, converter plant; 11, wire inlet control device; 12, rectifier; 13, energy consuming brake; 14, storage brake device; 15, energy back feed device; 131, brake unit; 132, braking resistor; 21, central processing unit; 22, control display unit; 24, memory cell; 25, AD converting unit; 26, digital signal input/output interface; 27, alarm unit; 28, communication unit; 29, control command output unit; 291, CAN communication unit; 292, DA converting unit.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited only to this.
[embodiment 1]
As shown in Figure 1, the integrated platform of hoisting crane electric system of the present embodiment, comprises the integrated power drive line safe driving control system of unifying:
Integrated power-driven system comprises power supply box 1, public direct-flow bus wire 2, rack and a plurality of for driving the converter plant 3 of variable-frequency motor, wherein: in above-mentioned power supply box 1, be provided with wire inlet control device 11, be connected to the rectifier 12 on wire inlet control device 11, wire inlet control device 11 is connected with the on-the-spot electric power system of hoisting crane; Above-mentioned converter plant 3 is inverter, by public direct-flow bus wire 2, is connected with rectifier 12; Above-mentioned power supply box 1, public direct-flow bus wire 2, the equal integrated installation of inverter are in rack; Above-mentioned wire inlet control device 11 comprises disconnector, circuit breaker (or quick acting fuse), three-phase input AC reactor, contactless switch, the electromagnetic interface filter connecting successively, disconnector is connected with the on-the-spot electric power system of hoisting crane, and electromagnetic interface filter is connected with rectifier 12.Wherein, three-phase input AC reactor and electromagnetic interface filter can remove and not use as required.Above-mentioned safe driving device is that operating personal is controlled hoisting crane work, stopped the control setup that ,Ge mechanism moves.In the present embodiment, above-mentioned hoisting crane field activity power supply can for 380V industrial power (, access 380V three-phase and four-line commercial power) or 380V AC power stabilizer, in practical application, in above-mentioned power supply box 1, also can be provided with additional supply, this additional supply can be one or more in 110V source of AC, 48V source of AC, 24V source of AC, 12V direct supply, 5V direct supply, 3.3V direct supply, to meet other kinds power device demand, improve the commonality of power supply box 1.
Safe driving control system comprises crane safety pilot instrument, for gathering the first sensor group of climatic information, for gathering the second sensor group of crane safety information, above-mentioned first sensor group, the second sensor group are all connected on crane safety pilot instrument, and the climatic information of collection and crane safety information are passed to crane safety pilot instrument; Crane safety pilot instrument is also connected with the inverse frequency transformer of integrated power-driven system, for reading main status word and the actual value of rising from inverter, comprise inverter be ready to, power on reply, the information such as operation, torque checking ok, fault of converter, electrical motor actual speed, and be that control word and speed etc. write inverter by various output information.In the present embodiment, first sensor group comprises 1 optical sensor, 2 temperature sensors, 2 humidity sensors, 1 wind speed wind direction sensor, wherein wind speed wind direction sensor, optical sensor are arranged on the outer tower top of operator's compartment, and temperature sensor, humidity sensor are being driven 1 of indoor location, driven one of outdoor mounted respectively.Temperature sensor can adopt DS18B20 digital temperature sensor; Humidity sensor can adopt LTM8901 digital hygro sensor; Wind speed wind direction sensor can adopt the anemoclinograph of TX series wind transducer, FY-FS series air velocity transducer or RY-FSXY model; Optical sensor can adopt the optical sensor of HA2003 model.The second sensor group comprises lift heavy sensor, degreeof turn sensor, amplitude sensor, height sensor, above-mentioned lift heavy installation of sensors is on load-bearing fulcrum, above-mentioned amplitude sensor, height sensor, degreeof turn sensor be separately positioned on the hoisting crane amplitude of controlling, highly, on the speed reduction gearing that changes of degreeof turn, can further include end position, door lock etc., end position, door lock are arranged on corresponding spacing position.Wherein, above-mentioned lift heavy sensor can adopt PLD308 series pull pressure sensor or ET-2 type tension load cell; Above-mentioned amplitude sensor, height sensor can adopt WKS-GC series height luffing sensor, and degreeof turn sensor can adopt WDG-A, B, C, AM series angular transducer.In practical application, the model of the sensor, quantity, type selecting can be used as required, for example, can also set up the torque arm subtended angle sensor being arranged on crane arm fulcrum, and the kind, quantity and the model that in the present embodiment, provide are provided.
[embodiment 2]
On embodiment 1 basis, the crane safety pilot instrument in the present embodiment comprises central processing unit 21 and the control display unit 22, control command output unit 29, memory cell 24, AD converting unit 25, the digital signal input/output interface 26 that are attached thereto.Wherein, digital signal input/output interface 6 is mainly connected first sensor group and the second sensor group with AD converting unit 5, and the information of sensor collection is sent to central processing unit 21.The sensor of output digit signals sends to central processing unit 1 by digital signal input/output interface 6 by the data of collection, and central processing unit 1 is shown to operating personal, by memory cell 4, is stored by touch display screen after processing; The sensor of outputting analog signal sends to central processing unit 1 after the data of collection being converted to digital signal by AD converting unit 5, then is shown to operating personal, by memory cell 4, is stored by touch display screen.
The crane safety pilot instrument of the present embodiment can adopt programmable system SOPC chip on special-purpose sheet to develop as basis, is integrated with central processing unit 21, memory cell 24, AD converting unit 25, digital signal input/output interface 26, control command output unit 29 etc. in this SOPC chip.In addition, central processing unit 1 also can adopt conventional CPU, micro controller system, FPGA for PC to realize, such as but not limited to adopting Programmable Logic Controller, the P89C668 of PHILIPS company micro controller system, the MB90560 of the FUJITSU company series that model is ABBPLC-AC31; Memory cell 4 can adopt general IDE hard disk or SDRAM memory device or FLASH memory device, such as but not limited to adopting the SDRAM memory chip of modern HY57V641620 model or adopting the FLASH memory device of GD25Q80SCP model or the IDE hard disk of West Digital WDC WD800BB-88JHC0 model; The GPIO(General Purpose Input Output that digital signal input/output interface 6 adopts common chip to carry, universal input/output), for example can adopt XRA120x I2C/SMBus GPIO extended chip or XRA140x SPI GPIO extended chip, also can be the interface of the conventional support digital signal I/O such as RS485 interface, SPI interface, RS232 interface, AD converting unit 5 can adopt common A/D conversion chip to realize, such as but not limited to 12 high speed serialization A/D converters of low-power consumption of the AD7810 of ADI model.In the present embodiment, control display unit 22 for integrating the touch display screen that shows and control function.In practical application, also can adopt the pattern that in existing crane control system, control unit and display unit separate, adopt separately read-out to show, and the input of control command adopt traditional joint action table, by operating handle or operation rocking bar, is completed.
[embodiment 3]
On the basis of embodiment 1 or embodiment 2, in power supply box 1, be also provided with for consuming the energy consuming brake 13 of the regenerative electric energy of variable-frequency motor generation, after this energy consuming brake 13 is connected to rectifier 12.As shown in Figure 2, this energy consuming brake 13 comprises brake unit 131 and braking resistor 132(R1 to the structure of energy consuming brake 13), above-mentioned brake unit 131 and braking resistor 132(R1) series connection after be connected in parallel on public direct-flow bus wire 2.Wherein, brake unit 131 consists of diode D1, diode D2 and an aerotron T1; The emitter T1 of aerotron is connected on DC bus 2 negative poles, collecting electrode and braking resistor 132(R1) be connected, braking resistor 132(R1) be connected on DC bus 2 positive poles; The positive pole of above-mentioned diode D2 is connected with the emitter of aerotron T1, negative pole is connected with the collecting electrode of aerotron T1; Diode D1 is connected in parallel on braking resistor 132(R1) upper, negative pole is connected to DC bus 2 positive poles, and positive pole is connected with the collecting electrode of aerotron T1, and wherein diode D1 is mainly used in voltage stabilizing, in practical application, also can not adopt diode D1.The effect of brake unit 131 is herein equivalent to a switch, when the lift heavy unit of hoisting crane declines, its potential energy converting and energy is that the electric energy feedback of variable-frequency motor is to DC bus, if do not consumed, can not damage circuit, therefore now brake unit 132 conductings, by braking resistor 132(R1) access energy-dissipating brake circuit, consume this part regenerative electric energy; When the lift heavy unit of hoisting crane does not drive generation regenerative electric energy, brake unit 132 cut-offs.In practical application, above-mentioned braking resistor 132(R1) also can be connected on the emitter of aerotron T1, the kind of aerotron and the connection mode of each collection also can correspondingly be changed, also can adopt field effect transistor etc., adopting diode, aerotron, field effect transistor design ON-OFF control circuit is this area common technology means, and other embodiment repeats no more herein.
[embodiment 4]
On the basis of above-described embodiment, in the present embodiment, in power supply box 1, be also provided with storage brake device 14 and energy back feed device 15, storage brake device 14 and energy back feed device 15 are all connected in parallel on public direct-flow bus wire 12.
Energy back feed device 15 comprises two input ends and three mouths, two input end is connected with the positive and negative electrode of public direct-flow bus wire 2 respectively, and three mouths are connected with three input ends (being three mouths of the on-the-spot electric power system of hoisting crane) of access control apparatus 11 respectively.In the present embodiment, can adopt the energy back feed device 15 of the models such as PFS-3450, BKFK506, peace river IPC, in practical application, can select according to the actual requirements the energy back feed device of other models.In addition, can also comprise other stop mechanisms, provide multiple braking to select, such as but not limited to four-quadrant feedback system.Especially, above-mentioned storage brake device 14, energy back feed device 15 and other stop mechanisms can only use one, are arranged on separately in integrated power-driven system; Also can all use, strengthen the consumption effect of regenerative electric energy.
[embodiment 5]
On the basis of embodiment 2 or embodiment 3 or embodiment 4, the crane safety pilot instrument in the present embodiment also comprises alarm unit 27 and the communication unit 28 being connected with Central Processing Unit (CPU) 21.Wherein, communication unit 28 comprises ethernet communication module, remote wireless communication module, short-range wireless communication module, and above-mentioned remote wireless communication module can be one or more in 2G wireless communication module, 3G wireless communication module, 2.5G wireless communication module, 4G wireless communication module; Above-mentioned short-range wireless communication module can be one or more in the modules such as WIFI module, Zigbee module, bluetooth module, NFC module.Wherein, ethernet communication module, remote wireless communication module, WIFI module be for accessing Internet, realizes wired, wireless remote is seamless distant TT&C system; Other short-range wireless communication module, for the wireless connections of on-the-spot each equipment room, forms local wireless tracking and command network.Above-mentioned alarm unit 27 can be combined aural and visual alarm or other conventional alarm units.The lift heavy that Central Processing Unit (CPU) 21 can gather by sensor, brachium, degreeof turn, torque arm subtended angle, hang the parameters such as height, end position, door lock and judge whether hoisting crane breaks down, when hoisting crane breaks down, start alarm unit 27 and carry out early warning/warning: combined aural and visual alarm is sounded and optical signal carries out early warning/warning; Also can pass through remote wireless communication module or the distant early warning/warning of ethernet communication module.
In the present embodiment, above-mentioned remote wireless communication module is 3G module, adopts the TD module of Datang DTM6211 model; Ethernet communication module adopts the network chip of DM9102HEP model; Short-range wireless communication module adopts the zigbee module of CC2530 model, ZICM2410P0,2 serial model No.s.In practical application, the concrete model of above-mentioned each module can be selected according to actual user demand, be not limited only to module type and chip signal in the present embodiment, and above-mentioned communication unit 8 can also comprise various serial communication interfaces, the function of expansion crane safety pilot.
[embodiment 6]
On the basis of embodiment 2 to 5, in the present embodiment, control command output unit 29 comprises CAN communication unit 291 and 4 DA converting units 292.CAN refers to (the Controller Area Network of controller local area network, CAN), CAN bus is a kind of fieldbus that has formed international standard with various features such as high, the easy realization of traffic rate and cost performance height, in the present embodiment, by CANBUS, forms local core measurement and control network.CAN communication unit 291 specifically comprises the CAN controller being connected with central processing unit 21 and is connected to the CAN transceiver on CAN controller, connects CAN bus on CAN transceiver.Wherein, CAN controller can adopt chip to be embedded in pattern or external pattern using SJA1000 family chip, and CAN transceiver can adopt TJA1040/PCA82C250/1 family chip.SJA1000 chip is that a CAN controllers ，You PHILIPS company designs and produces, and has outstanding EMI, EMC performance, is applicable to the controller local area network in industrial environment.TJA1040 chip is a kind of high-speed CAN transceiver, has very outstanding EMC performance, under power-up state, is not having desirable passive performance, and low-power consumption management is provided, and supports Remote Wake Up, and is integrated with perfect bus protection function.TJA1040 can support 40Kbps～1Mbps two-forty scope, and in the occasion that does not need CAN repeater, it is far away that communication distance can reach 1.2Km, and communication node number can reach 110 nodes.TJA1040 chip is widely used in industrial control field, can adapt to the working environment of any harshness.Adopt the plurality of advantages such as CAN bus output control command has high, the easy realization of traffic rate, volume of transmitted data is large, cost performance is high.In practical application, also can adopt according to demand other buses to realize.In practical application, control command output unit 6 also can adopt profibus communication unit, thereby by profibus bus output serial control bus, profibus is also a kind of standard for Fieldbus, but the quantity of the total line control of profibus can be significantly smaller than CAN bus.
DA converting unit 292 realizes the parallel output mode of non-universal serial bus tradition actuating unit; 4 DA converting units 292 are respectively used to control 4 frequency converter/inverters, 4 DA converting units 292 are all connected with central processing unit 21, it is for being converted into variable voltage by control command, send to and can receive inverter/frequency converter that analog signal is controlled, this mode is for parallel control inverter/frequency converter; And the direct output digit signals of mode that CAN communication unit 291 adopts Serial Control is to inverter/frequency converter that can receiving digital signals, make the integrated platform of hoisting crane electric system in the present embodiment can adopt serial and parallel two kinds of mode control inverter/frequency converters, be applicable to the control of polytype inverter/frequency converter, traditional old-fashioned actuating equipment, highly versatile simultaneously.DA converting unit 292 in the present embodiment can adopt the DA conversion integrated chip of DAC0832 serial model No. to realize, and adopts chip to be embedded in pattern or the realization of external pattern; Also can adopt a digital regulation resistance.In practical application, also can adopt other conventional D/A converting circuits, chip to realize, analog to digital conversion circuit is the conventional change-over circuit in this area, in the present embodiment, repeats no more.
[embodiment 7]
On above-described embodiment basis, in the present embodiment, on the inverter of integrated power-driven system, be also provided with master cock, an inverter can connect a plurality of variable-frequency motors by master cock, taking into full account on the basis of system load feature, can adopt the means such as control, timesharing control simultaneously, realize a band many (inverter Dai Tong mechanism multiple electric motors), singly drag Function Extensions such as two (inverter timesharing traction two mechanism's motors) simultaneously, further performance equipment potential, increase operation rate, reduce costs.
Below be only preferred implementation of the present utility model, protection domain of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, the some improvements and modifications not departing under the utility model principle prerequisite, should be considered as protection domain of the present utility model.
Claims (10)
1. the integrated platform of hoisting crane electric system, comprise the integrated power drive line safe driving control system of unifying, it is characterized in that, described integrated power-driven system comprises power supply box (1), public direct-flow bus wire (2) and a plurality of for driving the converter plant (3) of variable-frequency motor; In described power supply box (1), be provided with wire inlet control device (11), be connected to the rectifier (12) on wire inlet control device (11), described wire inlet control device (11) is connected with the on-the-spot electric power system of hoisting crane; Described converter plant (3) is inverter, by public direct-flow bus wire (2), is connected with rectifier (12); Described safe driving control system comprises crane safety pilot instrument, for gathering the first sensor group of climatic information, for gathering the second sensor group of crane safety information, described first sensor group, the second sensor group are all connected on crane safety pilot instrument; Described crane safety pilot instrument is connected with converter plant (3).
2. the integrated platform of hoisting crane electric system according to claim 1, is characterized in that, described integrated power-driven system also comprises rack, and described power supply box (1), public direct-flow bus wire (2), the equal integrated installation of inverter are in rack.
3. the integrated platform of hoisting crane electric system according to claim 1, it is characterized in that, described crane safety pilot instrument comprises central processing unit (21), control display unit (22), control command output unit (29), memory cell (24), AD converting unit (25), digital signal input/output interface (26), described central processing unit (21) and control display unit (22), control command output unit (29), memory cell (24), AD converting unit (25), digital signal input/output interface (26) is connected respectively, described control command output unit (29) is also connected with converter plant (3).
4. according to the arbitrary described integrated platform of hoisting crane electric system of claims 1 to 3, it is characterized in that, in described power supply box (1), be also provided with for consuming the energy consuming brake (13) of the regenerative electric energy of variable-frequency motor generation, this energy consuming brake (13) comprises brake unit (131) and braking resistor (132), after described brake unit (131) and braking resistor (132) series connection, is connected in parallel on public direct-flow bus wire (2).
5. according to the arbitrary described integrated platform of hoisting crane electric system of claims 1 to 3, it is characterized in that, in described power supply box (1), be also provided with the storage brake device (14) being connected in parallel on public direct-flow bus wire (2), described storage brake device (14) is ultracapacitor.
6. according to the arbitrary described integrated platform of hoisting crane electric system of claims 1 to 3, it is characterized in that, in described power supply box (1), be also provided with the energy back feed device (15) being connected in parallel on public direct-flow bus wire (2), described energy back feed device (15) comprises two input ends and three mouths, two input end is connected with the positive and negative electrode of public direct-flow bus wire (2) respectively, and three mouths are connected with three input ends of wire inlet control device (11) respectively.
7. the integrated platform of hoisting crane electric system according to claim 3, it is characterized in that, described crane safety pilot instrument also comprises communication unit (28) and the alarm unit (27) being connected with central processing unit (21), and described communication unit (28) comprises ethernet communication module, remote wireless communication module, short-range wireless communication module.
8. the integrated platform of hoisting crane electric system according to claim 3, is characterized in that, described control display unit (22) is touch display screen.
9. the integrated platform of hoisting crane electric system according to claim 3, it is characterized in that, described control command output unit (29) comprises CAN communication unit (291) and DA converting unit (292), and described CAN communication unit (291) comprises the CAN controller being connected with central processing unit (21) and is connected to the CAN transceiver on CAN controller; Described DA converting unit (292) is connected with central processing unit (21).
10. according to the arbitrary described integrated platform of hoisting crane electric system of claims 1 to 3, it is characterized in that, on described inverter, be also provided with master cock, variable-frequency motor is connected with inverter by this master cock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320535299.1U CN203419683U (en) | 2013-08-30 | 2013-08-30 | Integrated platform for electrical system of crane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320535299.1U CN203419683U (en) | 2013-08-30 | 2013-08-30 | Integrated platform for electrical system of crane |
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| CN201320535299.1U Expired - Fee Related CN203419683U (en) | 2013-08-30 | 2013-08-30 | Integrated platform for electrical system of crane |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103787198A (en) * | 2014-02-18 | 2014-05-14 | 辽宁国远科技有限公司 | Integrated control system of crane |
| CN104477781A (en) * | 2014-12-23 | 2015-04-01 | 三一汽车起重机械有限公司 | Engineering vehicle and IO (input/output) control system thereof |
| CN105523481A (en) * | 2016-01-11 | 2016-04-27 | 辽宁国远电子有限公司 | Built-in crane safety monitoring system |
| CN107572382A (en) * | 2016-07-04 | 2018-01-12 | (株)大山Inotec | Include the crane of integral inverter plate |
| CN112740528A (en) * | 2018-06-15 | 2021-04-30 | 利勃海尔比伯拉赫零部件有限公司 | Plug and play energy storage device for integration with an electrical drive system |
-
2013
- 2013-08-30 CN CN201320535299.1U patent/CN203419683U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103787198A (en) * | 2014-02-18 | 2014-05-14 | 辽宁国远科技有限公司 | Integrated control system of crane |
| CN104477781A (en) * | 2014-12-23 | 2015-04-01 | 三一汽车起重机械有限公司 | Engineering vehicle and IO (input/output) control system thereof |
| CN105523481A (en) * | 2016-01-11 | 2016-04-27 | 辽宁国远电子有限公司 | Built-in crane safety monitoring system |
| CN107572382A (en) * | 2016-07-04 | 2018-01-12 | (株)大山Inotec | Include the crane of integral inverter plate |
| CN112740528A (en) * | 2018-06-15 | 2021-04-30 | 利勃海尔比伯拉赫零部件有限公司 | Plug and play energy storage device for integration with an electrical drive system |
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