CN101651441A - Electric transmission system for HSHM-PE fiber back drawing machine - Google Patents
Electric transmission system for HSHM-PE fiber back drawing machine Download PDFInfo
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- CN101651441A CN101651441A CN200910161943A CN200910161943A CN101651441A CN 101651441 A CN101651441 A CN 101651441A CN 200910161943 A CN200910161943 A CN 200910161943A CN 200910161943 A CN200910161943 A CN 200910161943A CN 101651441 A CN101651441 A CN 101651441A
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Abstract
The invention discloses an electric transmission system for an HSHM-PE fiber back drawing machine, comprising a man-machine interface, a main control PLC, an extension module and at least two direct current speed regulation units, wherein each direct current speed regulation unit comprises a direct current speed regulator, a direct current motor and a speed measurement feedback motor; the main control PLC defines one direct current speed regulator as a logical main direct current speed regulator, and the other direct current speed regulators are all logical slave direct current speed regulators; and interlocking connection is formed among the direct current speed regulators of each direct current speed regulation unit through an analog amount channel to transport torque component. By adopting the electric transmission system, the mechanical fault rate of the electric transmission system can be lowered to enable the back drawing machine transmission equipment to be in a favorable working state, thereby efficiently enhancing the production benefit and quality.
Description
Technical field
The present invention relates to textile fabric technology transmission device field, particularly relate to a kind of HSHM-PE fiber first break draft electrical-mechanical drive system.
Background technology
In the operation of high-strength high-modulus polyethylene (HSHM-PE:High Strength High Modulus Polyethylene) drawing of fiber, electric drive is required may be summarized to be " three high one is few ", comprising:
1) high synchronism: motor speed requires horizontal rotating speed unanimity, and vertically ratio is synchronous;
2) high precision: stabilization of speed, accuracy height;
3) high reliability;
4) maintenance less or freedom from repairs.
Because the intensity height of fiber, uniformity instability and often need aborning to transfer technology cause first break draft machine transmission device to produce the torque instability, the phenomenon that strong torsional moment is impacted occurs.This not only can influence the mechanical endurance of first break draft machine, even can cause equipment breakdown.
At present, the scheme of control first break draft machine has a variety of, and modal is to drag five the speed and the control mode of moment of torsion with slip regulating speed motor one.Its structural representation adopts a slip regulating speed motor 100 as main frame as shown in Figure 1.By the speed of described main frame, utilize power transmission shaft to give five drawing-off units transmission (monolateral through-drive) by five bunchers respectively.
Referring to Fig. 1, with slip regulating speed motor 100 as main frame.Described main frame respectively with buncher 200a, No. two buncher 200b, No. three buncher 200c, No. four buncher 200d, and No. five buncher 200e link to each other; Wherein, a described buncher 200a, No. two buncher 200b, No. three buncher 200c, No. four buncher 200d, No. five buncher 200e are respectively applied for the unit rotating speed of regulating drawing-off unit 300a, No. two drawing-off unit 300b, No. three drawing-off unit 300c, No. four drawing-off unit 300d, No. five drawing-off unit 200e.
Adopt the method for control first break draft machine shown in Figure 1, the unit rotating speed of every drawing-off unit is controlled respectively by the buncher of this drawing-off unit correspondence and is regulated.Therefore, the torque imbalance of five drafting machines, its output speed instability, cause and regulate the technology trouble, failure rate of machinery is higher, and dynamic response is slow, often occurs phenomenons such as buncher skids under the high torque (HT) situation, make first break draft machine drive apparatus can not be in good working order for a long time, thereby influence the quality of production and productivity effect.
Summary of the invention
Technical problem to be solved by this invention provides a kind of HSHM-PE fiber first break draft electrical-mechanical drive system, can reduce the failure rate of machinery of electric drive system, make first break draft machine drive apparatus be in good working order, thereby improve productivity effect and quality effectively.
For solving the problems of the technologies described above, the invention provides a kind of HSHM-PE fiber first break draft electrical-mechanical drive system, described system comprises man-machine interface, main control PLC, expansion module, at least two DC speed regulation unit; Wherein, each DC speed regulation unit includes a DC speed regulator, a direct current machine and the feedback motor that tests the speed;
The first communication serial ports of the described main control PLC of signal I/O termination of described man-machine interface; The second communication serial ports of described main control PLC links to each other with the analog input/output port of every DC speed regulator of each DC speed regulation unit respectively; The digital I/O end of the digital I/O termination extension module of described main control PLC, the analog input/output of the analog input of described expansion module/each DC speed regulator of output termination;
DC speed regulator of described main control PLC definition is a logic master DC speed regulator, and all the other DC speed regulator are logic from DC speed regulator; Form annular interlocking by analog quantity channel between the DC speed regulator of each DC speed regulation unit and connect, the transmission torque component.
Preferably, forming annular interlocking connection by analog quantity channel between the DC speed regulator of described each DC speed regulation unit is specially:
The output of described logic master's DC speed regulator connects the input of first logic from DC speed regulator; Described first logic connects the input of second logic from DC speed regulator from the output of DC speed regulator; Circulation so successively forms annular and connects;
Logic master's DC speed regulator output self torque component gives first logic from DC speed regulator; First logic from DC speed regulator with the torque component of described logic master's DC speed regulator as additional torque, again self torque component is transferred to second logic from DC speed regulator simultaneously; Circulation so successively forms annular interlocking and connects.
Preferably, described logic master's DC speed regulator is operated in the P-I pattern, its proportional integral P243=0; Described logic is operated in the P pattern from DC speed regulator, its proportional integral P243=1.
Preferably, each DC speed regulator all is equipped with RS-485 serial protocol communication interface, carries out exchanges data with described main control PLC respectively by the communication of Modbus serial protocol.
Preferably, described exchanges data comprises: the communication of speed, set-point, control word and status word.
Preferably, described main control PLC is by the state and the order of control word and status word read-write DC speed regulator.
Preferably, described main control PLC is set up monitoring in real time to the speed and the torque of each DC speed regulator.
Preferably, described main control PLC will be monitored the DC speed regulator working order or the fault message that obtain in real time and export man-machine interface to, show to operating personnel.
Preferably, described main control PLC sends control word to each DC speed regulator, realizes operation and the speed regulation from DC speed regulator of logic master DC speed regulator and logic automatically.
Preferably, described expansion module comprises 2 groups of submodules; Every group of submodule comprises 4 passages; Every passage is used for an external DC speed regulator.
Compared with prior art, the present invention has the following advantages:
The invention provides a kind of HSHM-PE fiber first break draft electrical-mechanical drive system, comprise man-machine interface, main control PLC, expansion module, at least two DC speed regulation unit; Wherein, each DC speed regulation unit includes a DC speed regulator, a direct current machine and the feedback motor that tests the speed; By DC speed regulator of described main control PLC definition is logic master DC speed regulator, and all the other DC speed regulator are logic from DC speed regulator; Form annular interlocking by analog quantity channel between the DC speed regulator of each DC speed regulation unit and connect, the transmission torque component.
Adopt this annular interlocking structure of the present invention, can so that be used as for logic when a certain DC speed regulator of DC speed regulator breaks down, whole system can be out of service automatically.At this moment, logic master's DC speed regulator will shut down as logic other DC speed regulator from DC speed regulator to treat fast state operation.Thus, broken away from the very high shortcoming of single DC speed regulator dependence, even if the feedback motor that tests the speed of logic master's DC speed regulator correspondence breaks down, the danger of driving also can not appear, make that the failure rate of machinery of electric drive system of the present invention is low, can guarantee that first break draft machine drive apparatus is in good working order for a long time, thereby improve the quality of production and productivity effect.
Simultaneously, in the system of the present invention, adopt the speed closed loop control mode between many DC speed regulator, add artificial interface, can know the speed of production of seeing DC speed regulator and direct current machine intuitively, ruuning situation, malfunction etc. more, help execute-in-place and failure diagnosis, the stability of further raising system operation.
Description of drawings
Fig. 1 drags the structure chart of five control modes for prior art adopts slip regulating speed motor one;
Fig. 2 is the operation principle schematic diagram of HSHM-PE fiber first break draft electrical-mechanical drive system of the present invention;
Fig. 3 is HSHM-PE fiber first break draft electrical-mechanical drive system structure figure of the present invention;
Fig. 4 is a DC speed regulator circuit structure diagram of the present invention;
Fig. 5 is an expansion module conversion schematic diagram of the present invention.
Embodiment
Technical problem to be solved by this invention provides a kind of HSHM-PE fiber first break draft electrical-mechanical drive system, can reduce the failure rate of machinery of electric drive system, make first break draft machine drive apparatus be in good working order, thereby improve productivity effect and quality effectively.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
The described system of the embodiment of the invention comprises: man-machine interface, main control PLC (Programmable logicController, programmable logic controller (PLC)), expansion module, at least two DC speed regulation unit.Wherein, each DC speed regulation unit includes a DC speed regulator, a direct current machine and the feedback motor that tests the speed.
Defining one of them DC speed regulation unit by main control PLC is logic homophony speed unit, and other DC speed regulation unit are that logic is from the speed governing unit.
The DC speed regulator of each DC speed regulation unit is controlled a direct current machine respectively, the digital I/O that carries by DC speed regulator, and analog input/output formation loop network.Wherein, every DC speed regulator is the speed closed loop control mode, definition master and slave relation in logic only, the ratio-integral relation of the speed regulation by changing the master/slave DC speed regulator of logic, change the given source of additional torque inverse proportion, forms a kind of completely newly from principal and subordinate's controlling schemes.
DC speed regulator in each DC speed regulation unit all self is equipped with RS-485 serial protocol communication interface, respectively by carrying out exchanges data between communication of Modbus serial protocol and the described main control PLC.Wherein, described exchanges data comprises: the communication of speed, set-point, control word, status word etc.
Main control PLC is by the state and the order of control word and status word read-write DC speed regulator, and the speed of each DC speed regulator and torque are set up monitoring in real time in main control PLC inside, when DC speed regulator or direct current machine break down, can instant alarming and autodiagnosis fault point, and then can fix a breakdown a little more easily.
Between the DC speed regulator of each DC speed regulation unit, the analog quantity channel by CPU board carries forms annular interlocking between each DC speed regulator, so that connect, transmit torque component.
In actual production, the number of described DC speed regulation unit can specifically be set according to needs of production.In textile fabric technology drive system, described DC speed regulation number of unit is generally five.
Be example with five DC speed regulation unit below the embodiment of the invention, the described HSHM-PE fiber of embodiment of the invention first break draft electrical-mechanical drive system is described in detail.In the practical application, the course of work of drive system of DC speed regulation unit that comprises other numbers is with following identical.
At first, referring to Fig. 2, be the operation principle schematic diagram of the described HSHM-PE fiber of embodiment of the invention first break draft electrical-mechanical drive system.Fig. 2 is that logic master DC speed regulator is that example describes with the 3rd DC speed regulator, and in the practical application, the course of work that with other DC speed regulator is logic master DC speed regulator is with following identical.
The described HSHM-PE fiber of embodiment of the invention first break draft electrical-mechanical drive system comprises five DC speed regulation unit.Each DC speed regulation unit comprises a DC speed regulator, a direct current machine and the feedback motor that tests the speed respectively.
Described five analog quantity channels that DC speed regulator carries by CPU board form annular interlocking between each DC speed regulator, its operation principle as shown in Figure 2.Line is represented the torque transfer passage among the figure, has formed loop configuration.
Among Fig. 2, with the 3rd DC speed regulator as logic master DC speed regulator, other four DC speed regulator all as logic from DC speed regulator.
The output of described the 3rd DC speed regulator connects the input of second DC speed regulator, and the output of described second DC speed regulator connects the input of described first DC speed regulator; The output of described the 3rd DC speed regulator connects the input of described the 4th DC speed regulator, and the output of described the 4th DC speed regulator connects the input of described the 5th DC speed regulator; The output of described the 5th DC speed regulator connects the input of described first DC speed regulator.
Thus, make to form chain pattern between five DC speed regulator, constitute principal and subordinate's controlling schemes.The 3rd dc speed-regulating motor feedback speed signal as logic master DC speed regulator is given second DC speed regulator and the 4th DC speed regulator; The controlled instruction of second DC speed regulator and the 4th DC speed regulator back is by himself sending instructions to first DC speed regulator and the 5th DC speed regulator; First DC speed regulator after obtaining at last instructing and the 5th DC speed regulator are carried out data check and correction reparation, thereby obtain a complete ring-type Control Network, reduce the departure of drafting machine with this.
Wherein, the 3rd DC speed regulator as logic master DC speed regulator is operated in P-I pattern (its proportional integral P243=0); Be operated in P pattern (its proportional integral P243=1) as logic from other DC speed regulator of DC speed regulator.
By analog quantity with the torque of logic master DC speed regulator give logic from DC speed regulator (being the 4th DC speed regulator or second DC speed regulator the figure) as additional torque, logic master's DC speed regulator gives first logic from DC speed regulator by analog quantity channel output torque component, first logic from DC speed regulator with the torque component of described main DC speed regulator additional torque as oneself, while transfers to next logic from DC speed regulator (being the 5th DC speed regulator or first DC speed regulator the figure) with the torque component of self again, circulation so successively forms annular interlocking and connects.
Adopt this annular interlocking structure of the embodiment of the invention, can so that be used as for from DC speed regulator first, second, the 4th, and the 5th DC speed regulator any DC speed regulator when breaking down, whole system can be out of service automatically.At this moment, the 3rd DC speed regulator as main DC speed regulator will shut down as other DC speed regulator from DC speed regulator to treat fast state operation.Thus, broken away from,, the danger of driving also can not occur even if the feedback motor that tests the speed of logic master DC speed regulator correspondence breaks down to the very high shortcoming of single DC speed regulator dependence.
Wherein, the drawing-off ratio is the 3-4 drafting multiple between the 3rd DC speed regulator and the 4th DC speed regulator; The drawing-off ratio is the 4-5 drafting multiple between the 4th DC speed regulator and the 5th DC speed regulator; The drawing-off ratio is the 2-3 drafting multiple between the 3rd DC speed regulator and second DC speed regulator; The drawing-off ratio is the 1-2 drafting multiple between second DC speed regulator and first DC speed regulator; The drawing-off ratio is the 1-5 drafting multiple between first DC speed regulator and the 5th DC speed regulator.
The overall structure figure of described system as shown in Figure 3.With reference to Fig. 3, be the described HSHM-PE fiber of embodiment of the invention first break draft electrical-mechanical drive system structure figure.
Described system comprises: man-machine interface 10, main control PLC 20, expansion module 30, Switching Power Supply 40 and speed adjusting module 50.
Described speed adjusting module 50 comprises five DC speed regulation unit, comprises a DC speed regulator, a direct current machine and the feedback motor that tests the speed in each DC speed regulation unit respectively.
Described man-machine interface 10 external 24V Switching Power Supplies 40, the first communication serial ports (Fig. 3 shows the Port0 port) of the described main control PLC 20 of its signal I/O termination; The second communication serial ports (Fig. 3 shows the Port1 port) of described main control PLC 20 links to each other with the communication serial ports of every DC speed regulator of each DC speed regulation unit respectively; The digital I/O end of the digital I/O termination extension module 30 of described main control PLC 20, the analog input/output of the analog input of described expansion module 30/each DC speed regulator of output termination.
Wherein, the first communication serial ports of described main control PLC 20 and the second communication serial ports are the RS-485 serial ports; The communication serial ports of DC speed regulator is the RS-485 serial ports.
Analog input/the output port of the DC speed regulator of each DC speed regulation unit connects successively, forms loop network.
The DC speed regulator of a DC speed regulation unit is a logic master DC speed regulator in the described speed adjusting module 50 of described main control PLC 20 definition, and other are logic from DC speed regulator.
Described man-machine interface 10 is used to realize the man-machine interaction between operating personnel and the drive apparatus.Described Switching Power Supply 40 is the DC24V power supply, is used to main control PLC 20 that external 24V power supply is provided.
Described expansion module is used to realize analog-to-digital conversion (A/D) and digital-to-analogue conversion (D/A).
Described main control PLC 20 is used for the digital signal of described man-machine interface 10 inputs is converted into each DC speed regulator that analog signal transmission is given described speed adjusting module 50 by described expansion module 30, makes it form linkage status.Each DC speed regulator is transferred to each direct current machine with each instruction.And the operation conditions of each direct current machine is given each DC speed regulator by the feedback motor that tests the speed corresponding with this direct current machine with its speed feedback respectively.Each DC speed regulator is transferred to feedback speed expansion module 30 again, by described expansion module 30 each analog signal is converted into digital signal, import it into man-machine interface 10 by described main control PLC 20, make operating personnel can see the ruuning situation of each direct current machine clear, intuitively.
Introduce the workflow of described system below in detail:
Described speed adjusting module 50 comprises: the first DC speed regulation unit, the second DC speed regulation unit, the 3rd DC speed regulation unit, the 4th DC speed regulation unit and the 5th DC speed regulation unit.
Wherein, the described first DC speed regulation unit comprises: the first DC speed regulator 501_a, the first direct current machine 501_b and first test the speed and feed back motor 501_c.
The described second DC speed regulation unit comprises: the second DC speed regulator 502_a, the second direct current machine 502_b and second test the speed and feed back motor 502_c.
Described the 3rd DC speed regulation unit comprises: the 3rd DC speed regulator 503_a, the 3rd direct current machine 503_b and the 3rd test the speed and feed back motor 503_c.
Described the 4th DC speed regulation unit comprises: the 4th DC speed regulator 504_a, the 4th direct current machine 504_b and the 4th test the speed and feed back motor 504_c.
Described the 5th DC speed regulation unit comprises: the 5th DC speed regulator 505_a, the 5th direct current machine 505_b and the 5th test the speed and feed back motor 505_c.
Described the 3rd DC speed regulator 503_a of described main control PLC 20 definition is a logic master DC speed regulator, and other DC speed regulator are that logic is from DC speed regulator.
Its concrete workflow is:
As the 3rd DC speed regulator 503_a of logic master DC speed regulator, be used to regulate the running speed of the 3rd direct current machine 503_b of described the 3rd DC speed regulation unit.The 3rd of described the 3rd DC speed regulation unit tests the speed feedback motor 503_c by measuring the rotating speed of described the 3rd direct current machine 503_b, feeds back to described the 3rd DC speed regulator 503_a.Described the 3rd DC speed regulator 503_a exports described speed feedback to expansion module 30.Described expansion module 30 is converted into digital quantity with described speed feedback and is sent to main control PLC 20.20 pairs of described speed feedback of described main control PLC are calculated, and export result of calculation to described man-machine interface 10 demonstrations.At this moment, operating personnel judge the operating state of first break draft machine according to described man-machine interface result displayed, export first control command to described main control PLC 20 by described man-machine interface 10.Described main control PLC 20 is according to described first control command output, the first instruction speed-regulating signal.The described first instruction speed-regulating signal is converted into analog signals through described expansion module 30, exports the 4th DC speed regulator 504_a to.The speed of service that described the 4th DC speed regulator 504_a regulates described the 4th direct current machine 504_b according to the described first instruction speed-regulating signal.
The 4th of described the 4th DC speed regulation unit tests the speed feedback motor 504_c by measuring the rotating speed of described the 4th direct current machine 504_b, feeds back to described the 4th DC speed regulator 504_a.Described the 4th DC speed regulator 504_a exports described speed feedback to expansion module 30.Described expansion module 30 is converted into digital quantity with described speed feedback and is sent to main control PLC 20.20 pairs of described speed feedback of described main control PLC are calculated, and export result of calculation to described man-machine interface 10 demonstrations.At this moment, operating personnel judge the operating state of first break draft machine according to described man-machine interface result displayed, export second control command to described main control PLC 20 by described man-machine interface 10.Described main control PLC 20 is according to described second control command output, the second instruction speed-regulating signal.The described second instruction speed-regulating signal is converted into analog signals through described expansion module 30, exports the 5th DC speed regulator 505_a to.
The course of work of described the 5th DC speed regulation unit is identical with the course of work of the 4th DC speed regulation unit.
In like manner, by running as the speed feedback control second DC speed regulation unit of the 3rd direct current machine 503_b of the 3rd DC speed regulator 503_a correspondence of main DC speed regulator; Running by the speed feedback control first DC speed regulation unit of the described second direct current machine 502_b.
Thus, make between each DC speed regulator of described speed adjusting module 50 and form linkage status.Regulate its corresponding direct current machine work by main DC speed regulator, obtain the speed feedback of this direct current machine by the feedback motor that tests the speed of its correspondence, send back man-machine interface by main control PLC, show and export to operating personnel, and the control command that operating personnel are assigned generates the instruction speed-regulating signal through main control PLC, export to next stage from DC speed regulator, describedly control the running of its corresponding direct current machine according to described instruction speed-regulating signal, and further control again the running from the DC speed regulation unit of next stage according to the speed feedback of this direct current machine from DC speed regulator.
It should be noted that in the described speed adjusting module of the embodiment of the invention that the input that is in many DC speed regulator of final stage links to each other with output.As shown in Figure 2, the output of described the 5th DC speed regulator connects the input of described first DC speed regulator.Adopt this purpose of connecting to be to carry out the data check and correction and repair, control the accuracy and the stability of rotating speed with the speed ring that improves every motor, thereby reduced the driving error between the draw roll.
Preferably, the described electric drive system of the embodiment of the invention can be realized the switching from DC speed regulator of logic master DC speed regulator and logic easily by main control PLC.Be specially: send control word by main control PLC and realize automaticallying switch to DC speed regulator.
For example, shown in Figure 3 with the 3rd DC speed regulator as logic master DC speed regulator.When system need be with first DC speed regulator during as logic master DC speed regulator, only needing to redefine first DC speed regulator by main control PLC is logic master DC speed regulator, and issue control word to speed adjusting module, after each DC speed regulator receives described control word, carry out the principal and subordinate automatically and switch.
Preferably, the described electric drive system of the embodiment of the invention, described main control PLC is set up monitoring in real time to the speed of each DC speed regulator and torque, and can export man-machine interface to monitoring the DC speed regulator that obtains or the working order or the fault message of direct current machine in real time, shows to operating personnel.Make operating personnel can grasp the operating condition of each DC speed regulator and direct current machine in real time thus, help in time finding fault point and rapidly removing faults.
Referring to Fig. 4, be the described DC speed regulator circuit structure diagram of the embodiment of the invention.Described DC speed regulator is that example describes with Continental Europe 590P/70A speed regulator.
As shown in Figure 4, pin L1, the L2 of described DC speed regulator, L3 connect U, V, the W three-phase of importing the 220V AC power respectively by IKM1; Its pin 3 and pin 4 are used to connect starting relay IKA3; Pin N connects the zero line of 220V alternating current, and pin L connects the W phase of 220V alternating current; Pin B6 succeeds electrical equipment IKA2; Its pin A+ and pin A-connect direct current machine; Pin G1 and pin G2 meet test the speed feedback motor I G1, IG2; Pin A7, pin A1, pin A4 are the analog quantity input port.
The external 220V AC power of described DC speed regulator.IKA2 is that DC speed regulator is defined as trouble-free numeral output auxiliary relay, and its relay tip is given DC speed regulator; Described DC speed regulator is given expansion module with the message transmission of A7, A1, A4.And the IKA3 auxiliary relay is when starting, and the IKM1 that will link starts, the connection AC power, and input ac voltage L1, L2, L3 are converted into direct voltage A+, A-by DC speed regulator, are transferred to direct current machine.Wherein, IG1 and IG2 are the motor speed feedback coder, obtain the DC generator speed analog quantity and export to main control PLC.
The described expansion module of the embodiment of the invention is used for each analog signal of whole system and the conversion between the digital signal, is the critical elements of the described system of the embodiment of the invention.
Referring to Fig. 5, be the described expansion module conversion of embodiment of the invention schematic diagram.Wherein, be the external direct current 24V of described expansion module power supply by main control PLC.
As shown in Figure 5, described expansion module comprises 2 groups of submodules, and wherein 4DA1 and 4DA3 are first submodule; 4DA2 and 4DA4 are second submodule.
Every group of submodule can external 4 DC speed regulator.First submodule of forming with 4DA1 and 4DA3 is that example describes.Described first submodule comprises 4 channel C h1～Ch4, and every passage is used for an external DC speed regulator.
First passage Ch1 with first submodule is an example, describes in conjunction with DC speed regulator shown in Figure 4.The pin V+ of the Ch1 passage of 4DA1 meets the pin A4 of certain DC speed regulator, and its pin VI-meets the pin A1 of described DC speed regulator; The pin V+ of the Ch1 passage of 4DA3 meets the pin A7 of described DC speed regulator, and its pin VI-meets the pin A1 of described DC speed regulator.
The embodiment of the invention provides a kind of HSHM-PE fiber first break draft electrical-mechanical drive system, comprises man-machine interface, main control PLC, expansion module, at least two DC speed regulation unit; Wherein, each DC speed regulation unit includes a DC speed regulator, a direct current machine and the feedback motor that tests the speed; By DC speed regulator of described main control PLC definition is logic master DC speed regulator, and all the other DC speed regulator are logic from DC speed regulator; Form annular interlocking by analog quantity channel between the DC speed regulator of each DC speed regulation unit and connect, the transmission torque component.
Adopt this annular interlocking structure of the embodiment of the invention, can so that be used as for logic when a certain DC speed regulator of DC speed regulator breaks down, whole system can be out of service automatically.At this moment, logic master's DC speed regulator will shut down as logic other DC speed regulator from DC speed regulator to treat fast state operation.Thus, broken away from the very high shortcoming of single DC speed regulator dependence, even if main encoder breaks down, the danger of driving also can not appear, make that the failure rate of machinery of the described electric drive system of the embodiment of the invention is low, can guarantee that first break draft machine drive apparatus is in good working order for a long time, thereby improve the quality of production and productivity effect.
In the described system of the embodiment of the invention, adopt the speed closed loop control mode between many DC speed regulator, add artificial interface, can know the speed of production of seeing DC speed regulator and direct current machine intuitively, ruuning situation, malfunction etc. more, help execute-in-place and failure diagnosis, the stability of further raising system operation.And, the described electric drive system of the embodiment of the invention, simple and reliable for structure, can significantly reduce the manual maintenance amount, reduce accident rate, prolong the useful life of first break draft machine, reduce the waste silk rate.
In the described system of the embodiment of the invention, the multiplying power computational process of its whole system can intuitively be seen on man-machine interface after independently finishing by main control PLC, also can adjust by man-machine interface is online simultaneously.The embodiment of the invention can be carried out a key operation thereon by adopting man-machine interface, does not need operating personnel to carry out manual adjustments between every speed changer, can save time, and improves working efficiency.
Simultaneously, for prior art, because when the alternating current asynchronous slip electric motor normally moves, its rotating speed is not fixed, but can change slightly because of the variation of load, and traditional first break draft equipment five reductors in rotation process act on (being rigidly connected) of same axle, at first require five reductor moments must be consistent, (saying load balancing usually), speed and torque must be synchronously when that is to say five drafting machine operations.And the embodiment of the invention adopts direct current machine, and its perseverance is transferred out with rotating speed and do not changed with the characteristic of the fluctuation of load.Can make its output speed keep constant by the effective control of DC speed regulation.Therefore the described system of the embodiment of the invention can take into account velocity accuracy high with the good advantage of torque balance, reduced impact, the requirement of satisfied different draft process that can auto-manual to machinery.
Traditional first break draft device context test result:
1) when N＞10%, its rotary speed precision is 0.015%;
2) system changes apart from linear＜7%;
3) system speed rise time: 26ms;
4) change apart from permanent magnetic scope N＞1% o'clock, it changes apart from precision is＜5.5%;
5) change apart from the rise time and be: 15ms;
6) changeing the distance fluctuation is: 8%.
The described HSHM-PE fiber of embodiment of the invention first break draft electrical-mechanical drive system is carried out on-the-spot test, can reach following balance:
1) when N＞10%, its rotary speed precision is 0.0005%;
2) system changes apart from linear＜1%;
3) system speed rise time: 15ms;
4) change apart from permanent magnetic scope N＞1% o'clock, it changes apart from precision is＜1.5%;
5) change apart from the rise time and be: 5ms;
6) changeing the distance fluctuation is: 1%.
Thus, can prove further that the described electric drive system of the embodiment of the invention can reduce the failure rate of machinery of system, guarantee that first break draft machine drive apparatus is in good working order for a long time, thereby improve the quality of production and productivity effect.
More than to a kind of HSHM-PE fiber first break draft electrical-mechanical drive system provided by the present invention, be described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1, a kind of HSHM-PE fiber first break draft electrical-mechanical drive system is characterized in that described system comprises man-machine interface, main control PLC, expansion module, at least two DC speed regulation unit; Wherein, each DC speed regulation unit includes a DC speed regulator, a direct current machine and the feedback motor that tests the speed;
The first communication serial ports of the described main control PLC of signal I/O termination of described man-machine interface; The second communication serial ports of described main control PLC links to each other with the communication serial ports of every DC speed regulator of each DC speed regulation unit respectively; The digital I/O end of the digital I/O termination extension module of described main control PLC, the analog input/output of the analog input of described expansion module/each DC speed regulator of output termination;
DC speed regulator of described main control PLC definition is a logic master DC speed regulator, and all the other DC speed regulator are logic from DC speed regulator; Form annular interlocking by analog quantity channel between the DC speed regulator of each DC speed regulation unit and connect, the transmission torque component.
2, HSHM-PE fiber first break draft electrical-mechanical drive system according to claim 1 is characterized in that, forms annular interlocking connection by analog quantity channel between the DC speed regulator of described each DC speed regulation unit and is specially:
The output of described logic master's DC speed regulator connects the input of first logic from DC speed regulator; Described first logic connects the input of second logic from DC speed regulator from the output of DC speed regulator; Circulation so successively forms annular and connects;
Logic master's DC speed regulator output self torque component gives first logic from DC speed regulator; First logic from DC speed regulator with the torque component of described logic master's DC speed regulator as additional torque, again self torque component is transferred to second logic from DC speed regulator simultaneously; Circulation so successively forms annular interlocking and connects.
3, HSHM-PE fiber first break draft electrical-mechanical drive system according to claim 2 is characterized in that described logic master's DC speed regulator is operated in the P-I pattern, its proportional integral P243=0; Described logic is operated in the P pattern from DC speed regulator, its proportional integral P243=1.
4, HSHM-PE fiber first break draft electrical-mechanical drive system according to claim 1, it is characterized in that, each DC speed regulator all is equipped with RS-485 serial protocol communication interface, carries out exchanges data with described main control PLC respectively by the communication of Modbus serial protocol.
5, HSHM-PE fiber first break draft electrical-mechanical drive system according to claim 4 is characterized in that described exchanges data comprises: the communication of speed, set-point, control word and status word.
6, HSHM-PE fiber first break draft electrical-mechanical drive system according to claim 5 is characterized in that, described main control PLC is by the state and the order of control word and status word read-write DC speed regulator.
7, HSHM-PE fiber first break draft electrical-mechanical drive system according to claim 6 is characterized in that, described main control PLC is set up monitoring in real time to the speed and the torque of each DC speed regulator.
8, HSHM-PE fiber first break draft electrical-mechanical drive system according to claim 7 is characterized in that described main control PLC will be monitored the DC speed regulator working order or the fault message that obtain in real time and export man-machine interface to, show to operating personnel.
9, HSHM-PE fiber first break draft electrical-mechanical drive system according to claim 5, it is characterized in that, described main control PLC sends control word to each DC speed regulator, realizes operation and the speed regulation from DC speed regulator of logic master DC speed regulator and logic automatically.
10, HSHM-PE fiber first break draft electrical-mechanical drive system according to claim 1 is characterized in that described expansion module comprises 2 groups of submodules; Every group of submodule comprises 4 passages; Every passage is used for an external DC speed regulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101619431A CN101651441B (en) | 2009-09-07 | 2009-09-07 | Electric transmission system for HSHM-PE fiber back drawing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2009101619431A CN101651441B (en) | 2009-09-07 | 2009-09-07 | Electric transmission system for HSHM-PE fiber back drawing machine |
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| CN101651441A true CN101651441A (en) | 2010-02-17 |
| CN101651441B CN101651441B (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101619431A Active CN101651441B (en) | 2009-09-07 | 2009-09-07 | Electric transmission system for HSHM-PE fiber back drawing machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830651A (en) * | 2012-09-07 | 2012-12-19 | 深圳市英威腾电气股份有限公司 | Electric transmission system and control method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1299174C (en) * | 2003-09-27 | 2007-02-07 | 哈尔滨工业大学 | Motor controlling device |
| DE102005054817A1 (en) * | 2005-11-15 | 2007-05-24 | Saurer Gmbh & Co. Kg | Ring spinning machine comprises drawframes whose draw rollers are driven by a main drive unit and have auxiliary drive units distributed along their length |
| CN101169656B (en) * | 2007-12-03 | 2010-06-09 | 中冶南方工程技术有限公司 | Converter tilting electric transmission and control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830651A (en) * | 2012-09-07 | 2012-12-19 | 深圳市英威腾电气股份有限公司 | Electric transmission system and control method thereof |
| CN102830651B (en) * | 2012-09-07 | 2014-07-30 | 深圳市英威腾电气股份有限公司 | Electric transmission system and control method thereof |
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| CN101651441B (en) | 2012-07-04 |
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Denomination of invention: An electric drive system of HSHM-PE fiber back drafting machine Effective date of registration: 20201217 Granted publication date: 20120704 Pledgee: Hunan Linli rural commercial bank Limited by Share Ltd. Pledgor: Hunan Zhongtal Special Equipment Co.,Ltd. Registration number: Y2020430000043 |
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