CN201113865Y - Open type glue-smelting machine circuit apparatus - Google Patents
Open type glue-smelting machine circuit apparatus Download PDFInfo
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- CN201113865Y CN201113865Y CNU2007200410529U CN200720041052U CN201113865Y CN 201113865 Y CN201113865 Y CN 201113865Y CN U2007200410529 U CNU2007200410529 U CN U2007200410529U CN 200720041052 U CN200720041052 U CN 200720041052U CN 201113865 Y CN201113865 Y CN 201113865Y
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Abstract
The utility model relates to a circuit device for a rubber refining machine. The device is provided with a first frequency-control variable-speed motor, a second frequency-control variable-speed motor, a first inverter, a second inverter, a timing control circuit, a power supply circuit, an inverter control circuit and a three-phase power supply input switch. A motor terminal of the first inverter is connected with a power supply end of the first frequency-control variable-speed motor. A motor terminal of the second inverter is connected with a power supply end of the second frequency-control variable-speed motor. The timing control circuit is spanned between the first inverter and the second inverter. A power supply input end of the power supply circuit is connected with the power supply output end of a three-phase power supply input switch. Each control signal output end of the inverter control circuit is connected with corresponding ports of the first inverter and the second inverter. During the using process, the circuit device is capable of adjusting the speed ratio between front rollers and rear rollers of the open-type rubber refining machine. The total power consumption of the rubber refining machine is reduced, the transmission efficiency is improved, the noise is reduced, the using and maintenance are more convenient, and the service life is correspondingly prolonged.
Description
Technical field
The utility model relates to a kind of circuit arrangement of rubber mixing machine, particularly a kind of circuit arrangement that is used to control the motor of rubber mixing machine.
Background technology
At the widely used opening rubber mixing machine of rubber and plastics machine industry, former and later two rollers are rotating relatively with different linear velocity (fixed speed ratio), sizing material is being drawn under the effect of frictional force between two rollers, along with dwindling of two roller gaps, make sizing material be subjected to pushing consumingly and shearing, oxidative cleavage takes place in rubber macromolecule in mechanical chain rupture, thereby increases plasticity, reaches the purpose of refining glue.
The opening rubber mixing machine that uses has frame and rack-mounted motor, deceleration device, a pair of refining rubber roll tube, belt gear and a pair of speed ratio gear at present.One end of back roller is fixed with driven pulley, the other end is fixed with a speed ratio gear; One end of blanket roller is fixed with the another speed ratio gear and is meshed with the speed ratio gear of back on the roller.The power input component of the power output shaft of motor and deceleration device movingly, be fixed with driving pulley on the power output shaft of deceleration device, the power that driving pulley passes to the driven pulley that is fixed on the roller of back by belt, the power that back roller passes to blanket roller by intermeshing a pair of speed ratio gear.And for the mill of enclosed central driving, its motor directly drives forward and backward roller with certain speed ratio revolution by large-scale enclosed gear reduction unit and Hooks coupling universal coupling.This structure has been cancelled driven wheel and speed ratio gear, replaces large-scale enclosed gear reduction unit.
Also have a kind of opening rubber mixing machine (abbreviation rubber breaker) that is specifically designed to brokenly glue slightly different in the prior art with said structure, because broken adhesive process is not really strict to the requirement of speed ratio, speed ratio gear before and after this transmission is arranged and omitted between the roller, speed ratio between the roller of front and back is provided by the frictional force between front and back roller and the sizing material, speed ratio comes and go, and is called free speed ratio.
Aforementioned various transmission arranges that except that rubber breaker the speed ratio before and after all can guaranteeing effectively between the roller is constant, but sizing material or process requirements then can not be adjusted the speed ratio between the roller of front and back when changing easily.For rubber breaker, speed ratio requires not strict though its transmission is arranged, adopted free speed ratio, but this state speed ratio between the roller of front and back is down provided by the frictional force between roller and the sizing material fully, can not accurately be controlled, in case sizing material or process requirements change, can't adjust at all.
Along with the sustainable development of the development of rubber and plastic industry, particularly reclaimed rubber and ground rubber production technology, all kinds of production technologies are constantly tested and are improved, and obtain new breakthrough, make production technology no longer unalterable to the demand of roller speed ratio.These development to rubber and plastics machine particularly opening rubber mixing machine new requirement has been proposed, can't be accurately between the roller of front and back, the fixed speed ratio or the free speed ratio of instant adjustment can not satisfy the production technology demand.
The utility model content
The purpose of this utility model is, the circuit arrangement of speed ratio between a kind of front and back roller that in use can conveniently adjust opening rubber mixing machine is provided.
The technical scheme that its technical problem that solves the utility model adopts is: this circuit arrangement has first frequency control motor, second frequency control motor, first frequency converter, second frequency converter, speed-regulating control circuit, power circuit, transducer control circuit and three phase mains input switch; The power supply terminal of the power supply terminal of first frequency converter and second frequency converter links to each other with the power output end of three phase mains input switch by corresponding main power source electric wire respectively; The motor terminal of first frequency converter links to each other with the power end of first frequency control motor; The motor terminal of second frequency converter links to each other with the power end of second frequency control motor; Speed-regulating control circuit is connected across between first frequency converter and second frequency converter; The power input of power circuit is connected with the power output end of three phase mains input switch; The power output end of power circuit links to each other with the power end of transducer control circuit; Each control signal output ends of transducer control circuit is connected with first frequency converter, the second frequency converter corresponding port.
Above-mentioned speed-regulating control circuit has the first potentiometer SR1, the second potentiometer SR2 and synchronous variable-speed potentiometer SR3; First dc power output end in the control terminal of a frequency converter in the end of synchronous variable-speed potentiometer SR3 and first frequency converter and second frequency converter links to each other, the other end of synchronous variable-speed potentiometer SR3 is electrically connected with zero potential end in the control terminal of this frequency converter, and the adjustable end of synchronous variable-speed potentiometer SR3 links to each other with the end of the first potentiometer SR1 and the end of the second potentiometer SR2 simultaneously; Zero potential end in the control terminal of the other end of the first potentiometer SR1 and first frequency converter is electrically connected, and the analog signals input that being used in the adjustable end of the first potentiometer SR1 and the control terminal of first frequency converter receives speed controling signal links to each other; Zero potential end in the control terminal of the other end of the second potentiometer SR2 and second frequency converter is electrically connected, and the analog signals input that being used in the adjustable end of the second potentiometer SR2 and the control terminal of second frequency converter receives speed controling signal links to each other.One end of the zero potential end in one end of the zero potential end in the control terminal that is connected in first frequency converter of the first potentiometer SR1 and the control terminal that is connected in second frequency converter of the second potentiometer SR2 links to each other.
Above-mentioned transducer control circuit has rotation control circuit; Rotation control circuit has normally closed push button switch SB2, rotation extruding control circuit and crawl and returns control circuit; The end of normally closed push button switch SB2 links to each other with the power end of transducer control circuit; Rotate the extruding control circuit and be provided with the 3rd normally closed contact switch KA2-3 of the normally open push button switch SB3, the second relay K A2 that connect successively and the coil of the first relay K A1; Crawl is return control circuit and is provided with the 4th normally closed contact switch KA1-4 of the normally open push button switch SB4, the first relay K A1 that connect successively and the coil of the second relay K A2; The other end of normally open push button switch SB3 links to each other with the other end of normally open push button switch SB4; The other end of the coil of the first relay K A1 links to each other with the other end of the coil of the second relay K A2, and their common junction is communicated with the power supply ground of power circuit; The two ends of normally open push button switch SB3 are parallel with the 3rd contact switch KA1-3 that often opens of the first relay K A1 that is used for the self-insurance on-state; The other end of normally closed push button switch SB2 links to each other with the common junction of normally open push button switch SB4 with normally open push button switch SB3.The first relay K A1 also has the first contact switch KA1-1 that often opens and the second contact switch KA1-2 of Chang Kai; The end of the first contact switch KA1-1 of the first relay K A1 links to each other with second dc power output end in the control terminal of first frequency converter, and the digital quantity signal input that being used in the control terminal of the other end and first frequency converter receives the forward rotation control signal links to each other; The end of the second contact switch KA1-2 of the first relay K A1 links to each other with second dc power output end in the control terminal of second frequency converter, and the digital quantity signal input that being used in the control terminal of the other end and second frequency converter receives the forward rotation control signal links to each other.The second relay K A2 also has the first contact switch KA2-1 that often opens and the second contact switch KA2-2 of Chang Kai; The end of the first contact switch KA2-1 of the second relay K A2 links to each other with second dc power output end in the control terminal of first frequency converter, and the digital quantity signal input that being used in the control terminal of the other end and first frequency converter receives the backward rotation control signal links to each other; The end of the second contact switch KA2-2 of the second relay K A2 links to each other with second dc power output end in the control terminal of second frequency converter, and the digital quantity signal input that being used in the control terminal of the other end and second frequency converter receives the backward rotation control signal links to each other; And the terminals of the motor terminal of first frequency converter and first frequency control motor are connected by the mode of forward rotation, and the motor side of second frequency converter is connected by counter-rotational mode with the terminals of second frequency control motor.
Above-mentioned transducer control circuit also has the brake servo circuit between the power supply ground that is arranged on its power end and power circuit; Brake servo circuit is provided with the coil of 2～5 normally open push button switches parallel with one another and the 3rd relay K A3; These normally open push button switches in parallel are connected with the coil of the 3rd relay K A3 simultaneously; The 3rd relay K A3 has the first contact switch KA3-1 that often opens, the second contact switch KA3-2 that often opens and the 3rd normally closed contact switch KA3-3.The end of the first contact switch KA3-1 of the 3rd relay K A3 links to each other with second dc power output end in the control terminal of first frequency converter, and the digital quantity signal input that being used in the control terminal of the other end and first frequency converter receives brake control signal links to each other; The end of the second contact switch KA3-2 of the 3rd relay K A3 links to each other with second dc power output end in the control terminal of second frequency converter, and the digital quantity signal input that being used in the control terminal of the other end and second frequency converter receives brake control signal links to each other.The 3rd contact switch KA3-3 of the 3rd relay K A3 is connected between the power supply ground of the common junction of coil of the coil of the first relay K A1 and the second relay K A2 and power circuit.
Above-mentioned transducer control circuit also has the protection control circuit; The protection control circuit have in the control terminal of first frequency converter the output relay port and corresponding in establish in the control terminal of the switch and second frequency converter the output relay port and corresponding in establish switch, the common ends 1A end of the output relay port of first frequency converter links to each other with the normal-closed end 2B end of the output relay port of second frequency converter; Protection control circuit polyphone is arranged between the power supply ground of the end of the 3rd contact switch KA3-3 of the 3rd relay K A3 and power circuit; also promptly this end of the 3rd contact switch KA3-3 of the 3rd relay K A3 links to each other with the normal-closed end 1B end of the output relay port of first frequency converter, and the common ends 2A end of the output relay port of second frequency converter links to each other with the power supply ground of power circuit.Above-mentioned transducer control circuit also has alarm appliance HL2; The Chang Kaiduan 1C end of the output relay port of first frequency converter of protection control circuit links to each other with the Chang Kaiduan 2C end of the output relay port of second frequency converter; The end of alarm appliance HL2 links to each other with the power end of transducer control circuit, and the other end links to each other with the protection control circuit, also is that this end of alarm appliance HL2 links to each other with the Chang Kaiduan 1C end of the output relay port of first frequency converter.
Above-mentioned transducer control circuit has the control loop that resets between the power supply ground that is arranged on its power end and power circuit; The control loop that resets of transducer control circuit is provided with the normally open push button switch SB5 of series connection successively and the coil of the 4th relay K A4; The 4th relay K A4 also has the first contact switch KA4-1 that often opens and the second contact switch KA4-2 of Chang Kai; The end of the first contact switch KA4-1 of the 4th relay K A4 links to each other with second dc power output end in the control terminal of first frequency converter, and the digital quantity signal input that being used in the control terminal of the other end and first frequency converter receives reseting controling signal links to each other; The end of the second contact switch KA4-2 of the 4th relay K A4 links to each other with second dc power output end in the control terminal of second frequency converter, and the digital quantity signal input that being used in the control terminal of the other end and second frequency converter receives reseting controling signal links to each other.
This circuit arrangement can also have the first brake resistance R1 and the second brake resistance R2; The first brake resistance R1 is connected between the dc bus plus end and brake resistance terminal of first frequency converter; The second brake resistance R2 is connected between the dc bus plus end and brake resistance terminal of second frequency converter.
This circuit arrangement can also have fast molten circuit, and molten soon circuit is connected between the dc bus plus end end of first frequency converter and second frequency converter, and the first frequency changer direct current bus negative terminal end links to each other with the dc bus negative terminal end of second frequency converter.
The beneficial effects of the utility model are: (1) adopts the drive system of opening rubber mixing machine of the present utility model should adopt Belt Driven by Double Motor, the motor that adopts is a frequency control motor, two frequency control motors connect a gear reduction unit by shaft coupling separately, after gear reduction unit slows down respectively, drive forward and backward roller respectively with certain speed ratio revolution by two Hooks coupling universal couplings.Under the control of circuit arrangement of the present utility model, can regulate the speed of front and back roller respectively, obtain the speed ratio that production technology needs, solved the problem that the speed ratio between the roller of opening rubber mixing machine front and back can't accurately be adjusted immediately.(2) adopt the opening rubber mixing machine of circuit arrangement of the present utility model owing to adopted the frequency control structure, big small drive gear and speed ratio gear have been cancelled, make the total energy consumption of opening rubber mixing machine descend, transmission efficiency improves, and noise reduces, working service is convenient, also corresponding prolongation in useful life.(3) when an end of the zero potential end in the control terminal that is connected in frequency converter separately of first potentiometer in the speed-regulating control circuit of circuit arrangement of the present utility model and second potentiometer links to each other, help the control of conversion device more stably to the stable frequency modulation and voltage modulation power supply of frequency control motor output.(4) because of adopting frequency converter and frequency control motor, in the differential running, the over-voltage and over-current of two motors has all obtained protection, under overvoltage condition, when only having adopted brake resistance, can be used for consumed energy and reach requirement, have under the over-current state, frequency converter can transship 150%～170%; When adopting fast molten circuit, the exportable energy of frequency converter that links to each other with the motor that is driven is to another frequency converter, thereby can be used as the consumption in operation of this another frequency converter, thereby reaches energy-conservation effect.No matter whether adopt fast molten circuit, brake resistance all plays endergonic effect when braking.(5) adopt the corresponding rubber mixing machine of this circuit arrangement can carry out the bringing onto load starting, reduced man-hour, improved work efficiency greatly, changed plain edition rubber mixing machine complex operation in the past, defective that can not loaded starting.
Description of drawings
Fig. 1 is a kind of circuit block diagram of the present utility model.
Fig. 2 is a kind of electrical schematic diagram corresponding to Fig. 1.
Fig. 3 is a structural representation of using the opening rubber mixing machine of circuit arrangement of the present utility model.
Fig. 4 is the schematic top plan view of Fig. 3.
Fig. 5 be among Fig. 4 blanket roller and the back roller structural representation.
The represented parts of label among the figure are: 11---first frequency control motor; 12---second frequency control motor; 13---first frequency converter, 14---second frequency converter, 15---speed-regulating control circuit, 16---power circuit, 17---transducer control circuit; 18---the three phase mains input switch; 21---first shaft coupling; 22---second shaft coupling; 31---first gear reduction unit; 32---second gear reduction unit; 41---first Hooks coupling universal coupling; 42---second Hooks coupling universal coupling; 5---blanket roller; 6---the back roller; 7---the roller bearing seat; 8---frame; 81---left socle; 82---right support; 83---base.
Embodiment
See Fig. 1 and Fig. 2, the circuit arrangement of present embodiment has first frequency control motor 11, second frequency control motor 12, first frequency converter 13, second frequency converter 14, speed-regulating control circuit 15, power circuit 16, transducer control circuit 17 and three phase mains input switch 18.First frequency converter 13 and second frequency converter 14 are that model is the remittance river frequency converter of MD320.It is the transformer circuit T of 220V alternating current with the step-down of 380V alternating current that power circuit 16 has one.
Still see Fig. 1 and Fig. 2, power supply terminal R ', the S ' of power supply terminal R, the S of first frequency converter 13, the T end and second frequency converter 14, T ' end link to each other with power output end L11, L21, the L31 end of three phase mains input switch 18 by corresponding main power source electric wire respectively; Motor terminal U, the V of first frequency converter 13, W end links to each other with power end U1, V1, the W1 end of first frequency control motor 11 by the motor cable line; Motor terminal U ', the V ' of second frequency converter 14, W ' end link to each other with power end W2, V2, the U2 end of second frequency control motor 12 by the motor cable line; Speed-regulating control circuit 15 is connected across between first frequency converter 13 and second frequency converter 14; The power input of power circuit 16 is connected with the power output end of three phase mains input switch 18; The power output end of power circuit 16 links to each other with the power end of transducer control circuit 17; Each control signal output ends of transducer control circuit 17 is connected with first frequency converter 13, second frequency converter, 14 corresponding ports.
Still see Fig. 1 and Fig. 2, speed-regulating control circuit 15 has the first potentiometer SR1, the second potentiometer SR2 and synchronous variable-speed potentiometer SR3; The end of synchronous variable-speed potentiometer SR3 links to each other with the first dc power output end 10V dc power output end in the control terminal of first frequency converter 13, zero potential end GND end in the other end of synchronous variable-speed potentiometer SR3 and the control terminal of first frequency converter 13 is electrically connected, and the adjustable end while of synchronous variable-speed potentiometer SR3 links to each other with the end of the first potentiometer SR1 and the end of the second potentiometer SR2; Zero potential end GND end in the control terminal of the other end of the first potentiometer SR1 and first frequency converter 13 is electrically connected, and the analog signals input AI1 that being used in the adjustable end of the first potentiometer SR1 and the control terminal of first frequency converter 13 receives speed controling signal holds and links to each other; Zero potential end GND ' end in the control terminal of the other end of the second potentiometer SR2 and second frequency converter 14 is electrically connected, and the analog signals input AI1 ' end that being used in the adjustable end of the second potentiometer SR2 and the control terminal of second frequency converter 14 receives speed controling signal links to each other.One end of the zero potential end GND ' end in one end of zero potential end GND in the control terminal that is connected in first frequency converter 13 of first potentiometer SR1 end and the control terminal that is connected in second frequency converter 14 of the second potentiometer SR2 links to each other.
Still see Fig. 1 and Fig. 2, transducer control circuit 17 has the brake servo circuit between the power supply ground that is arranged on its power end and power circuit 16 and the control loop that resets; Transducer control circuit 17 also has rotation control circuit, protection control circuit and alarm appliance HL2.Rotation control circuit has normally closed push button switch SB2, rotation extruding control circuit and crawl and returns control circuit.
Still see Fig. 1 and Fig. 2, rotate the extruding control circuit and be provided with the 3rd normally closed contact switch KA2-3 of the normally open push button switch SB3, the second relay K A2 that connect successively and the coil of the first relay K A1.Crawl is return control circuit and is provided with the 4th normally closed contact switch KA1-4 of the normally open push button switch SB4, the first relay K A1 that connect successively and the coil of the second relay K A2.
Still see Fig. 1 and Fig. 2, the other end of normally open push button switch SB3 links to each other with the other end of normally open push button switch SB4; The other end of the coil of the first relay K A1 links to each other with the other end of the coil of the second relay K A2, and the common node of the coil of the coil of this first relay K A1 and the second relay K A2 is communicated with the power supply ground of power circuit 16; The end of normally closed push button switch SB2 links to each other with the power end of transducer control circuit 17, and the other end of normally closed push button switch SB2 links to each other with the common junction of normally open push button switch SB4 with normally open push button switch SB3.The two ends of normally open push button switch SB3 are parallel with the 3rd contact switch KA1-3 that often opens of the first relay K A1 that is used for the self-insurance on-state.
Still see Fig. 1 and Fig. 2, the first relay K A1 also has the first contact switch KA1-1 that often opens and the second contact switch KA1-2 of Chang Kai; Second dc power output end COM end in the end of the first contact switch KA1-1 of the first relay K A1 and the control terminal of first frequency converter 13 links to each other, and the digital quantity signal input FWD that being used in the control terminal of the other end and first frequency converter 13 receives the forward rotation control signal holds and links to each other; The end of the second contact switch KA1-2 of the first relay K A1 links to each other with second dc power output end COM ' end in the control terminal of second frequency converter 14, and the digital quantity signal input FWD ' end that being used in the control terminal of the other end and second frequency converter 14 receives the forward rotation control signal links to each other.Such connected mode, when the utility model is used for rubber mixing machine work, press the normally open push button switch SB3 (can be described as synchronous start button) that rotates the extruding control circuit, make the coil of the first relay K A1 get electric and make the corresponding first contact switch KA1-1 and the second contact switch KA1-2 closure.The first contact switch KA1-1 closure of the first relay K A1 then makes first frequency converter 13 export corresponding power supply and make first frequency control motor, 11 forward rotation from its motor terminal, and the second contact switch KA1-2 closure then makes second frequency converter 13 export corresponding power supply and make second frequency control motor, 12 backward rotation from its motor terminal.Two motors drive drive unit separately successively, and make blanket roller 5 forward rotation, make back roller 6 backward rotation, and this rotating manner can be described as the rotation fashion of extrusion; Because the closure of contact switch KA1-3 makes the first relay K A1 can get electric self-insurance, make state and make rubber mixing machine be in normal extruding millman.
Still see Fig. 1 and Fig. 2, the second relay K A2 also has the first contact switch KA2-1 that often opens and the second contact switch KA2-2 of Chang Kai; Second dc power output end COM end in the end of the first contact switch KA2-1 of the second relay K A2 and the control terminal of first frequency converter 13 links to each other, and the digital quantity signal input REV that being used in the control terminal of the other end and first frequency converter 13 receives the backward rotation control signal holds and links to each other; The end of the second contact switch KA2-2 of the second relay K A2 links to each other with second dc power output end COM ' end in the control terminal of second frequency converter 14, and the digital quantity signal input REV ' end that being used in the control terminal of the other end and second frequency converter 14 receives the backward rotation control signal links to each other.Such connected mode, when the utility model is used for rubber mixing machine work, press crawl and return the normally open push button switch SB4 of control circuit (can claim crawl to return button), make the coil of the second relay K A2 get electric and make the corresponding first contact switch KA2-1 and the second contact switch KA2-2 closure.The first contact switch KA2-1 closure of the second relay K A2 then makes first frequency converter 13 export corresponding power supply and make first frequency control motor, 11 backward rotation from its motor terminal, and the second contact switch KA2-2 closure then makes second frequency converter 14 export corresponding power supply and make second frequency control motor, 12 forward rotation from its motor terminal.Two motors drive drive unit separately successively, and make blanket roller 5 backward rotation, make back roller 6 forward rotation, and this rotating manner can be described as returns rotating manner; Because crawl is return control circuit and do not possessed and make the second relay K A2 get the circuit structure of electric self-insurance, so the returning to rotate and manually carrying out under the control of roller before and after the rubber mixing machine, this control mode is called crawl and returns mode.
Still see Fig. 1 and Fig. 2, the brake servo circuit of transducer control circuit 17 is provided with the coil of 4 normally open push button switch SB6～SB9 parallel with one another and the 3rd relay K A3; These normally open push button switches in parallel SB6～SB9 connects with the coil of the 3rd relay K A3 simultaneously; The 3rd relay K A3 has the first contact switch KA3-1 that often opens, the second contact switch KA3-2 that often opens and the 3rd normally closed contact switch KA3-3; When circuit arrangement of the present utility model is used for corresponding opening rubber mixing machine, normally open push button switch SB6～SB9 also claims locking key, these locking keys are arranged on the corresponding site of rubber mixing machine, also promptly be arranged on the operative employee on hand, so that when rubber mixing machine is worked, can motor be stopped operating, have improved rubber mixing machine workman's processing safety.
Still see Fig. 1 and Fig. 2, second dc power output end COM end in the end of the first contact switch KA3-1 of the 3rd relay K A3 and the control terminal of first frequency converter 13 links to each other, and the digital quantity signal input D14 that being used in the control terminal of the other end and first frequency converter 13 receives brake control signal holds and links to each other; The end of the second contact switch KA3-2 of the 3rd relay K A3 links to each other with second dc power output end COM ' end in the control terminal of second frequency converter 14, and the digital quantity signal input D14 ' end that being used in the control terminal of the other end and second frequency converter 14 receives brake control signal links to each other.Such connected mode, when the utility model is used for rubber mixing machine work, press crawl and return among the normally open push button switch SB6～SB9 of control circuit any one, it is electric that the coil of the 3rd relay K A3 is got, thereby make the first contact switch KA3-1 and the second contact switch KA3-2 closure of the 3rd relay K A3 simultaneously.The first contact switch KA3-1 closure then makes first frequency converter 13 stop from its motor terminal U, V, W end out-put supply to the first frequency control motor 11, and first frequency control motor 11 is stopped operating; The second contact switch KA3-2 closure then makes second frequency converter 14 stop from its motor terminal U ', V ', W ' end out-put supply to the second frequency control motor 12, and second frequency control motor 12 is stopped operating.
Still see Fig. 1 and Fig. 2, the 3rd contact switch KA3-3 of the 3rd relay K A3 is connected between the power supply ground of the common junction of coil of the coil of the first relay K A1 and the second relay K A2 and power circuit 16, promptly the coil of the first relay K A1 and the common junction of the coil of the second relay K A2 are not directly to link to each other with the power supply ground of power circuit 16 yet, but this common junction links to each other with the contact of the 3rd contact switch KA3-3 of the 3rd relay K A3, and another contact by the 3rd contact switch KA3-3 of the 3rd relay K A3 is connected with the power supply ground of power circuit 16 again.Such connected mode, when the utility model is used for rubber mixing machine work, if the coil of the 3rd relay K A3 gets, then the 3rd contact switch KA3-3 becomes off-state by normally off, and make whole rotation control circuit dead electricity, and make the first contact switch KA1-1, the second contact switch KA1-2 of the first relay K A1, the first contact switch KA2-1, the second contact switch KA2-2 of the second relay K A2 all be in off-state, thereby make first frequency converter 13 and second frequency converter 14 be in the not state of output motor power supply; Even the mistake that takes place this moment synchronous start button SB3 or crawl are return button SB4 by, because rotation extruding control circuit and crawl are return control circuit and all are in power failure state, then they can not send control signal to first frequency converter 13 and second frequency converter 14, thereby guarantee the safe and reliable to operation of rubber mixing machine.
Still see Fig. 1 and Fig. 2, the protection control circuit of transducer control circuit 17 have in the control terminal of first frequency converter 13 the output relay port and corresponding in establish in the control terminal of the switch and second frequency converter 14 the output relay port and corresponding in establish switch, the common ends 1A end of the output relay port of first frequency converter 13 links to each other with the normal-closed end 2B end of the output relay port of second frequency converter 14, and the Chang Kaiduan 1C end of the output relay port of first frequency converter 13 links to each other with the Chang Kaiduan 2C end of the output relay port of second frequency converter 14; Described protection control circuit is connected between the power supply ground of the 3rd contact switch KA3-3 of the 3rd relay K A3 and power circuit 16; promptly the end that is connected with power supply ground power circuit 16 the 3rd contact switch KA3-3 of the 3rd relay K A3 is not directly to link to each other with this power supply ground yet; but with link to each other with the normal-closed end 1B of the output relay port of protecting control circuit belonging to of first frequency converter 13 end, hold by the common ends 2A of the output relay port of protecting control circuit belonging to of second frequency converter 14 again to link to each other with the power supply ground of power circuit 16.Such connected mode, when the utility model is used for rubber mixing machine work, if frequency converter 13, the electric current that central processing unit in 14 detects its power supply of exporting that is used for drive motors surpasses the maximum current intensity that sets, or the power of this out-put supply is when surpassing the maximum set, can change by the state of the switch of establishing in the corresponding Frequency Converter Control, make between normal-closed end 1B end and the common ends 1A end in the relay port that is connected in first frequency converter 13 in establish the switch disconnection, perhaps make between normal-closed end 2B end and the common ends 2A end in the relay port that is connected in second frequency converter 14 in establish the switch disconnection, and make whole rotation control circuit dead electricity, thereby make first frequency converter 13 and second frequency converter 14 be in the not state of output motor power supply.
Still see Fig. 1 and Fig. 2; alarm appliance HL2 is an alarm lamp; the end of alarm appliance HL2 links to each other with the power end of transducer control circuit 17; the Chang Kaiduan 1C end of the other end and the output relay port of protecting control circuit belonging to of first frequency converter 13 links to each other, and the Chang Kaiduan 1C end of the output relay port of first frequency converter 13 of protection control circuit is then held with the Chang Kaiduan 2C of the output relay port of second frequency converter 14 and linked to each other.Such connected mode, when the utility model is used for rubber mixing machine work, establish under the situation of switch disconnection between normal-closed end 1B end in being in the relay port that is connected in first frequency converter 13 and the common ends 1A end, establish switch connection between common ends 1A end in the relay port and the Chang Kaiduan 1C end, thereby make electric current flow through alarm appliance HL2, Chang Kaiduan 1C end from the relay port of first frequency converter 13 flows into first frequency converter 13, common ends 1A from the relay port of first frequency converter 13 end flows out again, Chang Kaiduan 2C from the relay port of second frequency converter 14 end flows into second frequency converter 14 again, common ends 2A from the relay port of second frequency converter 14 end flows out again, flow into the power supply ground of power circuit 16 at last, thereby light alarm lamp HL2.
Establish under the situation of switch disconnection between normal-closed end 2B end in being in the relay port that is connected in second frequency converter 14 and the common ends 2A end, establish switch connection between then end of the common ends 2A in the relay port and Chang Kaiduan 2C hold, electric current flows through alarm appliance HL2, the end of the Chang Kaiduan 2C from the relay port of second frequency converter 14 (1C end and 2C end concurrent) flows into second frequency converter 14 again, the end of the common ends 2A from the relay port of second frequency converter 14 flows out again thereby make, flow into the power supply ground of power circuit 16 at last, thereby light alarm lamp HL2.
Still see Fig. 1 and Fig. 2, transducer control circuit 17 has the live wire of the power output end that is arranged on power circuit 16 and the control loop that resets between the ground wire; The control loop that resets of transducer control circuit 17 is provided with the normally open push button switch SB5 of series connection successively and the coil of the 4th relay K A4; The 4th relay K A4 also has the first contact switch KA4-1 that often opens and the second contact switch KA4-2 of Chang Kai; Second dc power output end COM end in the end of the first contact switch KA4-1 of the 4th relay K A4 and the control terminal of first frequency converter 13 links to each other, and the digital quantity signal input RST that being used in the control terminal of the other end and first frequency converter 13 receives reseting controling signal holds and links to each other; The end of the second contact switch KA4-2 of the 4th relay K A4 links to each other with second dc power output end COM ' end in the control terminal of second frequency converter 14, and the digital quantity signal input RST ' end that being used in the control terminal of the other end and second frequency converter 14 receives reseting controling signal links to each other.Such connected mode, when the utility model is used for rubber mixing machine work, press the normally open push button switch SB5 (being also referred to as reset button) of the control loop that resets, it is electric that the coil of the 4th relay K A4 is got, thereby make the first contact switch KA4-1 and the second contact switch KA4-2 closure of the 4th relay K A4 simultaneously.The first contact switch KA4-1 closure then makes first frequency converter 13 reset again; The second contact switch KA4-2 closure then makes second frequency converter 14 reset again.
See Fig. 3 and Fig. 4, when the circuit arrangement of present embodiment uses, should be provided on the opening rubber mixing machine of counter structure, the rubber mixing machine of this structure has first frequency control motor 11, second frequency control motor 12, first shaft coupling 21, second shaft coupling 22, first gear reduction unit 31, second gear reduction unit 32, first Hooks coupling universal coupling 41, second Hooks coupling universal coupling 42, be fixed with the blanket roller 5 of a pair of rolling bearing, be fixed with the back roller 6 of a pair of rolling bearing, one group of roller bearing seat 7 and frame 8.
Still see Fig. 3 and Fig. 4, frame 8 has left socle 81, right support 82 and base 83; Left socle 83 and right support 82 are fixed on the base 83 and constitute support 8.First frequency control motor 11, second frequency control motor 12, first gear reduction unit 31 and second gear reduction unit 32 all are fixed on the base 83.One in the back roller bearing seat is fixed on the left socle 81, and another is fixed on the right support 82; 1 front and back in the blanket roller bearing pedestal are slidingly arranged on the left socle 81, are slidingly arranged on the right support 82 before and after another.
See Fig. 5, with obtaining the blanket roller 5 and the back roller 6 of structure as shown in the figure after casting of alloy chilled cast iron process and the machining.The diameter of blanket roller 5 and back roller 6 is 500mm, and the length of blanket roller 5 and back roller 6 is 800mm.
Still see Fig. 3 and Fig. 4, blanket roller 5 is rotatably connected on to slide by the bearing that is arranged on its two ends and is arranged on a pair of blanket roller bearing pedestal 7 on left socle 81 and the right support 82, back roller 6 is rotatably connected on a pair of back roller bearing seat 7 that is fixed on left socle 81 and the right support 82 by the bearing that is arranged on its two ends, and blanket roller 5 and back roller 6 mutual opposing parallel settings.
Still see Fig. 3 and Fig. 4, first frequency control motor 11 is by the power input component of first shaft coupling, 21 connections, first gear reduction unit 31, and the power output shaft of first gear reduction unit 31 is connected to blanket roller 5 by first Hooks coupling universal coupling 41 again.Second frequency control motor 12 is by the power input component of second shaft coupling, 22 connections, second gear reduction unit 32, and the power output shaft of second gear reduction unit 32 is connected to back roller 6 by second Hooks coupling universal coupling 42 again.
Still see Fig. 3 and Fig. 4, the support of first roll-setting gear 91 is installed on the left socle 81, and the clutch end of this roll-setting gear 91 is fixedlyed connected with the blanket roller bearing pedestal on being positioned at left socle 81: also promptly first roll-setting gear 91 has support, rotating disk, handle, screw mandrel and Connection Block, support is fixed on the left socle 81, screw mandrel and support articulate, and the front end of screw mandrel is fixedlyed connected with rotating disk, handle is fixed on the rotating disk, fixedly connected with Connection Block in the rear end of screw mandrel, Connection Block is fixedlyed connected with the blanket roller bearing pedestal on being positioned at left socle 81 as the clutch end of roll-setting gear 91, thereby can be seesawed by the blanket roller bearing pedestal that staff drives successively by turning handle on screw mandrel and the Connection Block control left socle 81.
Still see Fig. 3 and Fig. 4, the support of second roll-setting gear 92 is installed on the right support 82, and the clutch end of this roll-setting gear 92 is fixedlyed connected with the blanket roller bearing pedestal on being positioned at right support 82: also promptly second roll-setting gear 92 has support, handle, rotating disk, screw mandrel and Connection Block, support is fixed on the left socle 82, screw mandrel and support articulate, and the front end of screw mandrel is fixedlyed connected with rotating disk, handle is fixed on the rotating disk, fixedly connected with Connection Block in the rear end of screw mandrel, Connection Block is fixedlyed connected with the blanket roller bearing pedestal on being positioned at right support 82 as the clutch end of roll-setting gear 92, thereby can be seesawed by the blanket roller bearing pedestal that staff drives successively by turning handle on screw mandrel and the Connection Block control right support 82.
See Fig. 1 and Fig. 2, the circuit arrangement control rubber mixing machine course of work of present embodiment is as follows:
During the work of operation opening rubber mixing machine, the electrical equipment control of closing automatic switch QS (battery main switch) cashier's office in a shop then starts blower fan D1, the D2 that is installed on frequency converter 13,14 next doors.Press the button (start button synchronously) of normally open push button switch SB3 in the rotation extruding control circuit in the transducer control circuit 17 again, the coil of the first relay K A1 is got, thereby make the 3rd contact switch KA1-3 adhesive of the first relay K A1 and make this control circuit keep conducting state, make the first contact switch KA1-1 adhesive that is connected in first frequency converter 13 simultaneously and control power supply to the first frequency control motor 11 of the motor terminal output of first frequency converter 13, drive its forward rotation through frequency conversion and pressure regulation; Also make the second contact switch KA1-2 adhesive that is connected in second frequency converter 14 simultaneously and control power supply to the second frequency control motor 12 of the motor terminal output of second frequency converter 14, drive its backward rotation through frequency conversion and pressure regulation.
This rotating speed is delivered to the input of gear reduction unit 31,32 separately by shaft coupling 21,22 separately, after gear reduction unit 31,32 decelerations separately, export needed roller rotating speed from output, be delivered to blanket roller 5 and back roller 6 respectively through separately Hooks coupling universal coupling 41,42.Blanket roller 5 is turned round with different linear velocities relatively with back roller 6, sizing material is subjected to pushing consumingly and shearing being drawn under the effect of frictional force between two rollers that the gap constantly dwindles, and oxidative cleavage takes place in mechanical chain rupture, thereby the increase plasticity, and realize refining glue.Because a variety of causes need change the linear velocity of blanket roller 5 and back roller 6, when perhaps needing to change the ratio between blanket roller 5 and back roller 6 linear velocities, can reset the rotating speed separately of two frequency control motors 11,12, the linear velocity of blanket roller 5 and back roller 6 is changed.
The setting of above-mentioned rotating speed separately to frequency control motor 11,12 is that the resistance by the potentiometer of the speed-regulating control circuit in the regulating circuit device 1 15 realizes.Can realize adjustment by the resistance of adjusting the first potentiometer SR1 to the rotating speed of first frequency control motor 11, realize adjustment by the resistance of adjusting the second potentiometer SR2, thereby roller reaches the requirement of technology speed difference before and after making to the rotating speed of second frequency control motor 12; Pass through to adjust the resistance of synchronous variable-speed potentiometer SR3 again, and increase or reduce the rotating speed of two frequency control motors 11,12 simultaneously, make it to reach the required rotating speed of technology.
During orderly shutdown, the resistance of synchronous variable-speed potentiometer SR3 transferred to zero-bit after, press the button of synchronous stop button switch S B2 again, first frequency control motor 11 and frequency control motor 12 be de-energized simultaneously and stop operating.When stopping in emergency, only need press arbitrary one button among the emergency stop push button switch S B6～SB9 of frame side, can realize the frequency converter Brake stop, when starting shooting again, could drive again after should resetting emergency stop push button.
Rotating speed adjustment during the machine operate as normal can be adjusted knob by the speed separately of the front and back roller on the Spin Control cabinet panel and realize that speed ratio can be learnt by the indicating value on the panel.
See Fig. 2, power circuit 16 also has fuse QF4 and fuse QF5, and the contact switch that should close separately before the work just can make power circuit 16 operate as normal.If run into overheated situation on overheated situation of the transformer T of power circuit 16 or the circuit, fuse QF4, QF5 disconnect, to ensure the safety of circuit and equipment.
Still see Fig. 2, transducer control circuit 17 also has the normally closed push button switch SB1 that is arranged on its major part power end.The button of pressing this push-button switch SB1 promptly can cut off the power supply of the major part of transducer control circuit 17, and rubber mixing machine is quit work.
Still see Fig. 2, first frequency converter 13 of this circuit arrangement is connected with the second brake resistance R2 being connected with the first brake resistance R1, second frequency converter 14 between its dc bus plus end and the brake resistance terminal between its dc bus plus end and brake resistance terminal.First effect that inserts brake resistance R1, R2 is to absorb energy when braking.Second effect is as buffer resistance, this is because two motors 11,12 rotating speed at work is different, thereby the linear velocity difference of roller 5,6 before and after causing, the motor that drives the slow roller of linear velocity can be by the another driven by motor, and the motor that driven this moment can play the effect of generator.Behind brake resistance R1 that inserts or R2, then the energy consumption that motor produced that is driven can be fallen, so the brake resistance of this moment plays cushioning effect, can be described as buffer resistance.
Still see Fig. 2, this circuit arrangement can also be provided with fast molten circuit, and molten soon circuit is connected between dc bus plus end (+) end of two frequency converters 13,14, and the dc bus negative terminal (-) of two frequency converters 13,14 end directly links to each other.After this circuit arrangement is provided with fast molten circuit; in case bus current overshoot; then fusing automatically; play a protective role; two ports of fuse are linked in the transducer control circuit 17 simultaneously, between the A of brake servo circuit end and B end, connect braking circuit in the fuse FU of fast molten circuit fusing; thereby realize the frequency converter Brake stop, and motor is protected.In addition, at this moment directly connect between the dc bus plus end (+) of two frequency converters 13,14 end by fuse FU, therefore, when the linear velocity that runs into two motors 11,12 rollers that driven is different, the energy that motor produced that is driven is transported to dc bus plus end (+) end of another frequency converter by dc bus plus end (+) end of corresponding frequency converter, thereby is used for useful consumption in operation for this another frequency converter; And the cushioning effect of brake resistance R1, the R2 of this moment has not existed, and can only play endergonic effect when braking.
Claims (10)
1. the circuit arrangement of an opening rubber mixing machine is characterized in that: have first frequency control motor (11), second frequency control motor (12), first frequency converter (13), second frequency converter (14), speed-regulating control circuit (15), power circuit (16), transducer control circuit (17) and three phase mains input switch (18); The power supply terminal of the power supply terminal of first frequency converter (13) and second frequency converter (14) links to each other by the power output end of corresponding main power source electric wire with three phase mains input switch (18) respectively; The motor terminal of first frequency converter (13) links to each other with the power end of first frequency control motor (11); The motor terminal of second frequency converter (14) links to each other with the power end of second frequency control motor (12); Speed-regulating control circuit (15) is connected across between first frequency converter (13) and second frequency converter (14); The power input of power circuit (16) is connected with the power output end of three phase mains input switch (18); The power output end of power circuit (16) links to each other with the power end of transducer control circuit (17); Each control signal output ends of transducer control circuit (17) is connected with first frequency converter (13), second frequency converter (14) corresponding port.
2. the circuit arrangement of opening rubber mixing machine according to claim 1, it is characterized in that: speed-regulating control circuit (15) has the first potentiometer SR1, the second potentiometer SR2 and synchronous variable-speed potentiometer SR3; First dc power output end in the control terminal of a frequency converter in the end of synchronous variable-speed potentiometer SR3 and first frequency converter (13) and second frequency converter (14) links to each other, the other end of synchronous variable-speed potentiometer SR3 is electrically connected with zero potential end in the control terminal of this frequency converter, and the adjustable end of synchronous variable-speed potentiometer SR3 links to each other with the end of the first potentiometer SR1 and the end of the second potentiometer SR2 simultaneously; Zero potential end in the control terminal of the other end of the first potentiometer SR1 and first frequency converter (13) is electrically connected, and the analog signals input that being used in the adjustable end of the first potentiometer SR1 and the control terminal of first frequency converter (13) receives speed controling signal links to each other; Zero potential end in the control terminal of the other end of the second potentiometer SR2 and second frequency converter (14) is electrically connected, and the analog signals input that being used in the adjustable end of the second potentiometer SR2 and the control terminal of second frequency converter (14) receives speed controling signal links to each other.
3. the circuit arrangement of opening rubber mixing machine according to claim 2 is characterized in that: an end of the zero potential end in an end of the zero potential end in the control terminal that is connected in first frequency converter (13) of the first potentiometer SR1 and the control terminal that is connected in second frequency converter (14) of the second potentiometer SR2 links to each other.
4. the circuit arrangement of opening rubber mixing machine according to claim 1, it is characterized in that: transducer control circuit (17) has rotation control circuit; Rotation control circuit has normally closed push button switch SB2, rotation extruding control circuit and crawl and returns control circuit; The end of normally closed push button switch SB2 links to each other with the power end of transducer control circuit (17); Rotate the extruding control circuit and be provided with the 3rd normally closed contact switch KA2-3 of the normally open push button switch SB3, the second relay K A2 that connect successively and the coil of the first relay K A1; Crawl is return control circuit and is provided with the 4th normally closed contact switch KA1-4 of the normally open push button switch SB4, the first relay K A1 that connect successively and the coil of the second relay K A2; The other end of normally open push button switch SB3 links to each other with the other end of normally open push button switch SB4; The other end of the coil of the first relay K A1 links to each other with the other end of the coil of the second relay K A2, and their common junction is communicated with the power supply ground of power circuit (16); The two ends of normally open push button switch SB3 are parallel with the 3rd contact switch KA1-3 that often opens of the first relay K A1 that is used for the self-insurance on-state; The other end of normally closed push button switch SB2 links to each other with the common junction of normally open push button switch SB4 with normally open push button switch SB3;
The first relay K A1 also has the first contact switch KA1-1 that often opens and the second contact switch KA1-2 of Chang Kai; The end of the first contact switch KA1-1 of the first relay K A1 links to each other with second dc power output end in the control terminal of first frequency converter (13), and the digital quantity signal input that being used in the control terminal of the other end and first frequency converter (13) receives the forward rotation control signal links to each other; The end of the second contact switch KA1-2 of the first relay K A1 links to each other with second dc power output end in the control terminal of second frequency converter (14), and the digital quantity signal input that being used in the control terminal of the other end and second frequency converter (14) receives the forward rotation control signal links to each other;
The second relay K A2 also has the first contact switch KA2-1 that often opens and the second contact switch KA2-2 of Chang Kai; The end of the first contact switch KA2-1 of the second relay K A2 links to each other with second dc power output end in the control terminal of first frequency converter (13), and the digital quantity signal input that being used in the control terminal of the other end and first frequency converter (13) receives the backward rotation control signal links to each other; The end of the second contact switch KA2-2 of the second relay K A2 links to each other with second dc power output end in the control terminal of second frequency converter (14), and the digital quantity signal input that being used in the control terminal of the other end and second frequency converter (14) receives the backward rotation control signal links to each other; And the terminals of the motor terminal of first frequency converter (13) and first frequency control motor (11) are connected by the mode of forward rotation, and the motor side of second frequency converter (14) is connected by counter-rotational mode with the terminals of second frequency control motor (12).
5. the circuit arrangement of opening rubber mixing machine according to claim 4, it is characterized in that: transducer control circuit (17) also has the brake servo circuit between the power supply ground that is arranged on its power end and power circuit (16); Brake servo circuit is provided with the coil of 2～5 normally open push button switches parallel with one another and the 3rd relay K A3; These normally open push button switches in parallel are connected with the coil of the 3rd relay K A3 simultaneously; The 3rd relay K A3 has the first contact switch KA3-1 that often opens, the second contact switch KA3-2 that often opens and the 3rd normally closed contact switch KA3-3;
The end of the first contact switch KA3-1 of the 3rd relay K A3 links to each other with second dc power output end in the control terminal of first frequency converter (13), and the digital quantity signal input that being used in the control terminal of the other end and first frequency converter (13) receives brake control signal links to each other; The end of the second contact switch KA3-2 of the 3rd relay K A3 links to each other with second dc power output end in the control terminal of second frequency converter (14), and the digital quantity signal input that being used in the control terminal of the other end and second frequency converter (14) receives brake control signal links to each other;
The 3rd contact switch KA3-3 of the 3rd relay K A3 is connected between the power supply ground of the common junction of coil of the coil of the first relay K A1 and the second relay K A2 and power circuit (16).
6. the circuit arrangement of opening rubber mixing machine according to claim 5, it is characterized in that: transducer control circuit (17) also has the protection control circuit; The protection control circuit have in the control terminal of first frequency converter (13) the output relay port and corresponding in establish in the control terminal of switch and second frequency converter (14) the output relay port and corresponding in establish switch, the common ends 1A end of the output relay port of first frequency converter (13) is held with the normal-closed end 2B of the output relay port of second frequency converter (14) and is linked to each other; Protection control circuit polyphone is arranged between the power supply ground of the end of the 3rd contact switch KA3-3 of the 3rd relay K A3 and power circuit (16); also promptly this end of the 3rd contact switch KA3-3 of the 3rd relay K A3 links to each other with the normal-closed end 1B end of the output relay port of first frequency converter (13), and the common ends 2A end of the output relay port of second frequency converter (14) links to each other with the power supply ground of power circuit (16).
7. the circuit arrangement of opening rubber mixing machine according to claim 6, it is characterized in that: transducer control circuit (17) also has alarm appliance HL2; The Chang Kaiduan 1C end of the output relay port of first frequency converter (13) of protection control circuit links to each other with the Chang Kaiduan 2C end of the output relay port of second frequency converter (14); The end of alarm appliance HL2 links to each other with the power end of transducer control circuit (17), and the other end links to each other with the protection control circuit, also is that this end of alarm appliance HL2 links to each other with the Chang Kaiduan 1C end of the output relay port of first frequency converter (13).
8. the circuit arrangement of opening rubber mixing machine according to claim 1, it is characterized in that: transducer control circuit (17) has the control loop that resets between the power supply ground that is arranged on its power end and power circuit (16); The control loop that resets of transducer control circuit (17) is provided with the normally open push button switch SB5 of series connection successively and the coil of the 4th relay K A4; The 4th relay K A4 also has the first contact switch KA4-1 that often opens and the second contact switch KA4-2 of Chang Kai; The end of the first contact switch KA4-1 of the 4th relay K A4 links to each other with second dc power output end in the control terminal of first frequency converter (13), and the digital quantity signal input that being used in the control terminal of the other end and first frequency converter (13) receives reseting controling signal links to each other; The end of the second contact switch KA4-2 of the 4th relay K A4 links to each other with second dc power output end in the control terminal of second frequency converter (14), and the digital quantity signal input that being used in the control terminal of the other end and second frequency converter (14) receives reseting controling signal links to each other.
9. according to the circuit arrangement of the described opening rubber mixing machine of one of claim 1 to 8, it is characterized in that: also have the first brake resistance R1 and the second brake resistance R2; The first brake resistance R1 is connected between the dc bus plus end and brake resistance terminal of first frequency converter 13; The second brake resistance R2 is connected between the dc bus plus end and brake resistance terminal of second frequency converter 14.
10. the circuit arrangement of opening rubber mixing machine according to claim 9, it is characterized in that: also have fast molten circuit, fast molten circuit is connected between dc bus plus end (+) end of first frequency converter 13 and second frequency converter 14, and first frequency converter, 13 dc bus negative terminals (-) end links to each other with dc bus negative terminal (-) end of second frequency converter 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200410529U CN201113865Y (en) | 2007-07-28 | 2007-07-28 | Open type glue-smelting machine circuit apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200410529U CN201113865Y (en) | 2007-07-28 | 2007-07-28 | Open type glue-smelting machine circuit apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201113865Y true CN201113865Y (en) | 2008-09-10 |
Family
ID=39965612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200410529U Expired - Fee Related CN201113865Y (en) | 2007-07-28 | 2007-07-28 | Open type glue-smelting machine circuit apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201113865Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769417A (en) * | 2012-08-06 | 2012-11-07 | 中联重科物料输送设备有限公司 | Method and device for controlling multi-motor variable-frequency drive of belt conveyor |
| CN103394386A (en) * | 2013-08-13 | 2013-11-20 | 河南工业大学 | Driving device with double variable frequency motors of rubber roll rice huller |
| CN103660063A (en) * | 2013-11-22 | 2014-03-26 | 宣城亚邦化工有限公司 | Detecting instrument for frequency converting plastic refining machine |
| CN107678394A (en) * | 2017-10-24 | 2018-02-09 | 信义环保特种玻璃（江门）有限公司 | Conveyer belt frequency-changing control system |
| CN107800301A (en) * | 2016-08-28 | 2018-03-13 | 上海奇电电气科技股份有限公司 | Mill special intelligent controls frequency converter |
-
2007
- 2007-07-28 CN CNU2007200410529U patent/CN201113865Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769417A (en) * | 2012-08-06 | 2012-11-07 | 中联重科物料输送设备有限公司 | Method and device for controlling multi-motor variable-frequency drive of belt conveyor |
| CN102769417B (en) * | 2012-08-06 | 2014-12-24 | 中联重科物料输送设备有限公司 | Method and device for controlling multi-motor variable-frequency drive of belt conveyor |
| CN103394386A (en) * | 2013-08-13 | 2013-11-20 | 河南工业大学 | Driving device with double variable frequency motors of rubber roll rice huller |
| CN103660063A (en) * | 2013-11-22 | 2014-03-26 | 宣城亚邦化工有限公司 | Detecting instrument for frequency converting plastic refining machine |
| CN103660063B (en) * | 2013-11-22 | 2017-01-11 | 宣城亚邦化工有限公司 | Detecting instrument for frequency converting plastic refining machine |
| CN107800301A (en) * | 2016-08-28 | 2018-03-13 | 上海奇电电气科技股份有限公司 | Mill special intelligent controls frequency converter |
| CN107678394A (en) * | 2017-10-24 | 2018-02-09 | 信义环保特种玻璃（江门）有限公司 | Conveyer belt frequency-changing control system |
| CN107678394B (en) * | 2017-10-24 | 2024-08-09 | 信义环保特种玻璃（江门）有限公司 | Variable frequency control system of conveyor belt |
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