CN103935906B - Multifunctional motor-driven-the hydraulic crane of power is made of generator set - Google Patents
Multifunctional motor-driven-the hydraulic crane of power is made of generator set Download PDFInfo
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- CN103935906B CN103935906B CN201410149986.9A CN201410149986A CN103935906B CN 103935906 B CN103935906 B CN 103935906B CN 201410149986 A CN201410149986 A CN 201410149986A CN 103935906 B CN103935906 B CN 103935906B
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- 238000002485 combustion reaction Methods 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 239000000725 suspension Substances 0.000 claims description 43
- 238000004804 winding Methods 0.000 claims description 27
- 239000013078 crystal Substances 0.000 claims description 18
- 239000012530 fluid Substances 0.000 claims description 14
- 238000005070 sampling Methods 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 239000003990 capacitor Substances 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 230000009514 concussion Effects 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000005286 illumination Methods 0.000 abstract description 4
- 238000003466 welding Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 45
- 238000010276 construction Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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Abstract
The invention discloses multifunctional motor-driven-hydraulic crane that a kind of generator set does power, it comprises walking chassis and hoisting crane, internal combustion engine generator group, circuit changing switch and drive motor controller are installed in chassis in walking, the mouth of internal combustion engine generator group is divided into output circuit and driving circuit by circuit changing switch, the drive motor that driving circuit is installed by drive motor controller and walking tray bottom is connected, and drive motor is connected by the road wheel of Transmission with walking chassis.The invention has the advantages that: the revolution of loop wheel machine, the elevator of loop wheel machine, comprise the parts such as the driving of hydraulic power unit and the walking of crane and all adopt electric drive, not only increase efficiency, reduce cost, the more important thing is and expanded the function that crane outwards provides alternating electromotive force and hydraulic power, thus make crane not only can complete lifting task, the several work such as electric welding, illumination can also be implemented, crane is developed to multifunctional direction.
Description
Technical field
The present invention relates to a kind of crane, specifically a kind of generator set does the multifunctional motor-driven-hydraulic crane of power.
Background technology
Current cranemobile is on car chassis, installed a hydraulic crane completely, the walking of automobile, the running of loop wheel machine remain traditional mechanical-hydraulic drive mechanism completely, namely during walking, the internal-combustion engine drives vehicle chassis of automobile is walked, the internal-combustion engine drives hydraulic pump drive loop wheel machine revolution of automobile during work, elevator, lifting and flexible, wherein the efficiency of combustion engine mechanical transmission is relatively low, and the cost of hydraulic system components is higher.
Summary of the invention
The object of this invention is to provide multifunctional motor-driven-hydraulic crane that a kind of generator set does power, it is flexible except suspension rod, to rise and retire and the action of very heavy leg still adopts outside hydraulic efficiency pressure system, the revolution of loop wheel machine, the elevator of loop wheel machine, comprise other parts such as the driving of hydraulic power unit and the walking of crane and all adopt electric drive, not only increase efficiency, reduce cost, the more important thing is and expanded the function that crane outwards provides alternating electromotive force and hydraulic power, thus make crane not only can complete lifting task, electric welding can also be implemented, illumination, electronic work, facility construction and hydraulic pressure work, the construction operation of facility, crane is developed to multifunctional direction.
The present invention for achieving the above object, be achieved through the following technical solutions: comprise walking chassis and hoisting crane, internal combustion engine generator group is installed on chassis in walking, circuit changing switch and drive motor controller, the mouth of internal combustion engine generator group is divided into output circuit and driving circuit by circuit changing switch, the drive motor that driving circuit is installed by drive motor controller and walking tray bottom is connected, drive motor is connected by the road wheel of Transmission with walking chassis, output circuit is connected with the arm rotating machine in hoisting crane and hoist cable elevator motor and the first oil pump drive motor and the second oil pump drive motor respectively, first oil pump drive motor is connected with the first oil pump in supporting leg fluid power system, second oil pump drive motor is connected with the second oil pump in suspension rod fluid power system.Described drive motor controller comprises power circuit and control circuit, power circuit comprises rectifier, the mouth of rectifier is connected with the input end of filter, the mouth of filter is connected with the input end of inversion unit, the mouth of inversion unit is connected with the input end of high frequency main transformer, the mouth of high frequency main transformer is connected with the input end of hf rectifier, and the mouth of hf rectifier is connected with the input end of high-pass filter.Control circuit comprises high-frequency signal circuit for generating, frequency detection circuit, signal transacting arithmetical circuit, sample circuit, central controller, commutation circuit, multi-functional conversion input circuit.The annexation of power circuit and control circuit is as follows: rectifier is by the voltage of input, the three plase alternating current of changeable frequency is by being rectified into direct current (DC) after rectifier U9, filter is by electric capacity C1, electric capacity C5, electric capacity C6 and resistance R1, resistance R2 forms, electric capacity C1 is Absorption Capacitance, C5, C6 is filter capacitor, R1, R2 is equalizing resistance, one end of electric capacity C1 is connected with the positive output end of rectifier U9, the other end is connected with the negative output terminal of rectifier U9, resistance R1 is in parallel with electric capacity C5, resistance R2 is in parallel with electric capacity C6, electric capacity C5 positive pole is connected with one end of electric capacity C1, electric capacity C5 negative pole is connected with electric capacity C6 positive pole, electric capacity C6 negative pole is connected with the other end of electric capacity C1, the direct current (DC) of input is passed through inversion unit U10 inverter output frequency 10 ~ 100kHz high-frequency alternating current by inversion unit, high frequency main transformer is by high-frequency transformer T3, DC contactor K3 and binding post J8 forms, binding post J8 is DC contactor K3 coil outer binding post, the number of turn of high-frequency transformer T3 is realized changing by controlling DC contactor K3, high-frequency transformer T3 is by the winding I of primary side, winding II and secondary side winding are formed, primary side two windings in series of high-frequency transformer T3, the other end of first side winding I exchanges outgoing side one end and is connected with inversion unit U10, the other end of first side winding II exchanges the outgoing side other end and is connected with inversion unit U10, the open contact of DC contactor K3 is in parallel with first side winding II, the coil two ends of DC contactor K3 are connected respectively to pin 1 and the pin 2 of binding post J8, the secondary side winding two ends of high-frequency transformer T3 export, the alternating current that secondary side winding two ends obtain by high-frequency transformer T3 exports direct current (DC) by hf rectifier U13 rectification, high-pass filter is made up of inductance L 4 and electric capacity C7, one end of inductance L 4 is connected with the positive output end of hf rectifier U13, the other end of inductance L 4 is connected with the positive pole of electric capacity C7, the negative pole of electric capacity C7 is connected with the negative output terminal of hf rectifier U13, the outside positive output end of dual-purpose machine is connected with the positive pole of electric capacity C7, the outside negative output terminal of dual-purpose machine is connected with the negative pole of electric capacity C7, the pin 1 of the power module U15 of high-frequency signal circuit for generating be connected to power supply ' 12V, the pin 2 of power module U15 be connected to power supply ' 0V, the pin 3 of power module U15 obtains power supply-15V, the pin 4 of power module U15 is connected to 0V power supply, the pin 5 of power module U15 obtains power supply+15V, electric capacity C41 connects with electric capacity C42, the negative pole of electric capacity C41 is connected with the pin 3 of power module U15, the positive pole of electric capacity C41 is connected with the pin 4 of power module U15, the positive pole of electric capacity C42 is connected with the pin 5 of power module U15, electric capacity C44 is in parallel with electric capacity C41, electric capacity C43 is in parallel with electric capacity C42, the pin 1 of power module U16 is connected to power supply+15V, the pin 2 of power module U16 is connected to power supply 0V, the positive pole of electric capacity C46 is connected with the pin 3 of power module U16, the negative pole of electric capacity C46 is connected to power supply 0V, electric capacity C45 is in parallel with electric capacity C46, to determining voltage signal QG through electric capacity C9, electric capacity C10, resistance R4, resistance R5, op amp U15, resistance R6, the filter network that electric capacity C11 forms is to 5 pin of control chip U1, for control chip U1 work provides Setting signal, one end of resistance R4 is connected with electric capacity C9, the electric capacity C9 other end is connected to power supply 0V, the other end of resistance R4 is connected with the in-phase input end of op amp U15, resistance R5 is connected with the in-phase input end of op amp U15 with one end after electric capacity C10 parallel connection, the other end is connected to power supply 0V, the inverting input of op amp U15 is connected with mouth, control chip U1 pin 5 is connected to by resistance R6, the pin 5 of control chip U1 is connected with electric capacity C11 one end, the electric capacity C11 other end is connected to power supply 0V, resistance R7, resistance R8, electric capacity C28, electric capacity C29 makes control chip U1 work can soft start, resistance R8 is in parallel with electric capacity C29, the positive pole of electric capacity C29 and control chip U1 pin 1, the negative pole of electric capacity C29 is connected to power supply 0V, resistance R7 connects with electric capacity C28, the negative pole of electric capacity C28 is connected to power supply 0V, the positive pole of electric capacity C29 and control chip U1 pin 2, the other end of resistance R7 is connected with control chip U1 pin 1, current sensor U11 carries out sampling gained signal through resistance R14 to high-frequency transformer primary side current, resistance R15, resistance R16, resistance R17, the filter network that electric capacity C18 forms is to 4 pin of control chip U1, for control chip U1 work provides Setting signal, resistance R16 connects with resistance R17, the other end of resistance R17 is connected with the output of current sensor U11, the other end of resistance R16 is connected with control chip U1 pin 4, control chip U1 pin 4 is connected to-15V power supply by resistance R14, control chip U1 pin 4 is connected to power supply 0V by resistance R15, harmonic compensation electricity routing resistance R11, resistance R12, electric capacity C15, electric capacity C16, op amp U16 forms, the in-phase input end of op amp U16 is connected with control chip U1 pin 8, the inverting input of op amp U16 is connected with mouth, resistance R11, electric capacity C16 is in parallel with resistance R12 and electric capacity C15 after connecting, electric capacity C15 one end is connected with control chip U1 pin 4, the electric capacity C15 other end is connected with op amp U16 mouth, concussion timing circuit is by resistance R9, resistance R10, electric capacity C12, electric capacity C14 forms, resistance R9 is in parallel with resistance R10, one end is connected with control chip U1 pin 8, the other end is connected to power supply 0V, electric capacity C12 is in parallel with electric capacity C14, one end is connected with control chip U1 pin 9, the other end is connected to power supply 0V, current sensor U11 carries out sampling gained signal through resistance R17 to high-frequency transformer primary side current, resistance R18, resistance R19, electric capacity C18, electric capacity C19 turns off for control chip U1 provides outside, resistance R17 and resistance R18 is connected in series to control chip U1 pin 16, resistance R19 is in parallel with electric capacity C19, one end is connected with control chip U1 pin 16, the other end is connected to power supply 0V, resistance R13 is the protective resistance of control chip U1 output stage biased voltage input, electric capacity C13, electric capacity C17, electric capacity C30, electric capacity C31 is filter capacitor, resistance R13 one end is connected with control chip U1 pin 15, the resistance R13 other end is connected with control chip U1 pin 13, electric capacity C13 is in parallel with electric capacity C30, one end is connected with control chip U1 pin 15, the other end is connected to power supply 0V, electric capacity C17 is in parallel with electric capacity C31, one end is connected with control chip U1 pin 13, the other end is connected to power supply 0V, by diode D10, diode D11, resistance R20, resistance R21, resistance R22, resistance R23, aerotron Q1, aerotron Q2, aerotron Q3, aerotron Q4, resistance R24, electric capacity C20 forms full-bridge circuit, two paths of signals is through isolating transformer T1, isolating transformer T2, electric capacity C21, electric capacity C22, electric capacity C23, electric capacity C24, resistance R25, resistance R26, resistance R27, resistance R28, resistance R29, resistance R30, resistance R31, resistance R70, diode D12, diode D13, diode D14, diode D15 becomes four road signals and drives inversion unit, the base stage of aerotron Q1 is connected with control chip U1 pin 14 by resistance R20, the base stage of aerotron Q3 is connected with control chip U1 pin 14 by resistance R21, the negative electrode of diode D10 is connected with control chip U1 pin 14, the anode of diode D10 is connected to power supply 0V, the base stage of aerotron Q2 is connected with control chip U1 pin 11 by resistance R22, the base stage of aerotron Q4 is connected with control chip U1 pin 11 by resistance R23, the negative electrode of diode D11 is connected with control chip U1 pin 14, the anode of diode D11 is connected to power supply 0V, be connected with the pin 1 of isolating transformer T2 with isolating transformer T1 after aerotron Q1 collecting electrode is connected with aerotron Q3 collecting electrode, after aerotron Q2 collecting electrode is connected with aerotron Q4 collecting electrode, be connected with the one end after resistance R24 and electric capacity C20 parallel connection, resistance R24 is connected with the pin 2 of isolating transformer T2 with isolating transformer T1 with the other end after electric capacity C20 parallel connection, aerotron Q3 emitter is connected to power supply 0V, aerotron Q4 emitter is connected to power supply 0V, aerotron Q1 emitter is connected with aerotron Q2 emitter, it is in parallel with resistance R25 after diode D15 connects with resistance R70, diode D15 negative electrode is connected with isolating transformer T1 pin 6, the other end of resistance R70 is connected with electric capacity C21 one end, the electric capacity C21 other end is connected with isolating transformer T1 pin 5, it is in parallel with resistance R26 after diode D12 connects with resistance R29, diode D12 negative electrode is connected with isolating transformer T1 pin 3, the other end of resistance R29 is connected with electric capacity C22 one end, the electric capacity C22 other end is connected with isolating transformer T1 pin 4, it is in parallel with resistance R27 after diode D13 connects with resistance R30, diode D13 negative electrode is connected with isolating transformer T2 pin 6, the other end of resistance R30 is connected with electric capacity C23 one end, the electric capacity C23 other end is connected with isolating transformer T2 pin 5, it is in parallel with resistance R28 after diode D14 connects with resistance R31, diode D14 negative electrode is connected with isolating transformer T2 pin 3, the other end of resistance R31 is connected with electric capacity C24 one end, the electric capacity C24 other end is connected with isolating transformer T2 pin 4, respectively at electric capacity C21, electric capacity C22, electric capacity C23, electric capacity C24 two ends obtain four road signals and drive inversion unit, resistance R54, diode D2, optocoupler U6, resistance R61, R62 component frequency testing circuit, obtain corresponding frequency signal and send into control chip U8, one end of resistance R54 is connected with the U phase of three plase alternating current, the other end of resistance R54 is connected with the anode of diode D2, the negative electrode of diode D2 is connected with the pin 1 of optocoupler U6, the pin 2 of optocoupler U6 is connected with the V phase of three plase alternating current, the pin 3 of optocoupler U6 is connected with one end of R61, the other end of R61 is connected to+5V power supply, the pin 3 of optocoupler U6 is connected with one end of R62, the other end of R62 is connected to the pin 9 of control chip U8, in signal transacting arithmetical circuit, control chip U8 exports through resistance R63 signal transacting, voltage signal is obtained after electric capacity C4, Setting signal UQG is obtained after the voltage follower that this signal is consisted of the C part U3C of op amp U3, control chip U8 pin 5 is connected with op amp U3 pin 10 by resistance R63, one end of electric capacity C4 is connected with op amp U3 pin 10, the other end of electric capacity C4 is connected to power supply 0V, op amp U3 pin 8 is connected with op amp U3 pin 9, the current sensor that circuit uses is current mode current sensor, resistance R52 obtains voltage through diode D1, resistance R32, electric capacity C25, inductance L 5, resistance R3, electric capacity C26, the filter network of C27 composition, obtain required voltage, receive the end of oppisite phase of the part A U2A of op amp U2, current sensor U12 samples the signal that obtains by diode D1 to load current, inductance L 5, resistance R3 is connected with op amp U2 pin 2, diode D1 anode exports with sensor and is connected, one end of resistance R52 is connected with diode D1 anode, the other end of resistance R52 is connected to power supply 0V, resistance R32 is connected with diode D1 negative electrode with one end after electric capacity C25 parallel connection, the other end is connected to power supply 0V, electric capacity C26 one end is connected with resistance R3 junction with inductance L 5, the electric capacity C26 other end is connected to power supply 0V, electric capacity C27 one end is connected with op amp U2 pin 2, the electric capacity C27 other end is connected to power supply 0V, resistance R40, resistance R41, resistance R42 carries out dividing potential drop to output voltage, voltage sensor gathers the voltage on resistance R42, the voltage sensor that circuit uses is current mode voltage sensor, resistance R44 obtains required voltage, this voltage and Setting signal UQG are through the part B by U3B op amp U3, resistance R43, resistance R45, resistance R46, resistance R47, resistance R48, the voltage that the voltage signal obtained after the P regulating control that resistance R49 forms obtains after the voltage follower that the part A U3A of op amp U3 forms is by resistance R37, resistance R38, resistance R39, diode D9, diode D6, diode D5 discharge and recharge network carries out discharge and recharge to electric capacity C8, electric capacity C8 obtains to determining voltage signal QG, the outside positive output end of dual-purpose machine is by resistance R40, resistance R41 and resistance R42 is connected in series to the outside negative output terminal of dual-purpose machine, voltage sensor U14 pin 1 is connected with resistance R42 junction with resistance R40, voltage sensor U14 pin 2 is connected with resistance R42 junction with resistance R41, voltage sensor U14 pin 3 and resistance R44 one end are connected to power supply 0V, voltage sensor U14 pin 4 is connected with the resistance R44 other end, voltage sensor U14 pin 4 is connected with op amp U2 pin 6, voltage sensor U14 pin 4 is connected with op amp U3 pin 6 by resistance R45, op amp U3 pin 6 is connected with op amp U3 pin 7 by resistance R43, op amp U3 pin 6 is connected to power supply 0V by resistance R46, op amp U3 pin 6 is connected to+5V power supply by resistance R48, op amp U3 pin 5 is connected to power supply 0V by resistance R49, op amp U3 pin 5 is connected with op amp U3 pin 8 by resistance R48, op amp U3 pin 7 is connected with op amp U3 pin 3, op amp U3 pin 1 is connected with op amp U3 pin 2, it is in parallel with resistance R38 after resistance R39 connects with diode D9, diode D9 negative electrode is connected with op amp U3 pin 1, the other end of resistance R39 is connected with electric capacity C8 positive pole, electric capacity C8 negative pole is connected to power supply 0V, resistance R37 connects with diode D6, the other end of resistance R37 is connected with electric capacity C8 positive pole, diode D6 negative electrode is connected with op amp U2 pin 1, diode D5 anode is connected with diode D6 anode, diode D5 negative electrode is connected with op amp U2 pin 7, resistance R51, diode D8 forms current protection indicating circuit, part A U2A and the resistance R50 of op amp U2 form hysteresis loop comparator, when anti-phase input terminal voltage is greater than in-phase input end voltage, during the voltage namely obtained on R34, mouth is active potential, when anti-phase input terminal voltage is less than in-phase input end voltage, mouth is high potential, the protection value of outgoing current is changed by adjusting resistance R34 value, resistance R34 pin 1 is connected to+5V power supply, resistance R34 pin 3 is connected to power supply 0V, resistance R34 pin 2 is connected with op amp U2 pin 3, op amp U2 pin 3 is connected with op amp U2 pin 1 by resistance R50, resistance R51 is connected with diode D8, diode D8 anode is connected to+5V power supply, the resistance R51 other end is connected with op amp U2 pin 1, resistance R36, diode D7 forms over voltage indicating circuit, part B U2B and the resistance R35 of op amp U2 form hysteresis loop comparator, when anti-phase input terminal voltage is greater than in-phase input end voltage, during the voltage namely obtained on R33, mouth is active potential, when anti-phase input terminal voltage is less than in-phase input end voltage, mouth is high potential, the protection value of output voltage is changed by adjusting resistance R33 value, resistance R33 pin 1 is connected to+5V power supply, resistance R33 pin 3 is connected to power supply 0V, resistance R33 pin 2 is connected with op amp U2 pin 5, op amp U2 pin 5 is connected with op amp U2 pin 7 by resistance R35, resistance R36 and diode D7, diode D7 negative electrode is connected with op amp U2 pin 7, the resistance R51 other end is connected to+5V power supply, the current sensor U11 of sample circuit samples to high-frequency transformer primary side current, current sensor U12 samples to load current, voltage sensor U14 samples to on-load voltage, connector J3, resistance R56, optocoupler U5, resistance R59, resistance R60 forms temperature sampling circuit, obtain corresponding temperature signal and send into control chip U8, the pin 1 of optocoupler U5 by resistance R56 be connected to ' 12V power supply, the pin 2 of optocoupler U5 is connected with the pin 2 of binding post J3, the pin 1 of binding post J3 be connected to power supply ' 0V, the pin 4 of optocoupler U5 is connected to+5V power supply by resistance R59, the pin 3 of optocoupler U5 is connected to power supply 0V, one end of resistance R60 is connected with the pin 4 of optocoupler U5, one end of resistance R60 is connected with the pin 10 of control chip U8, programming port J1, resistance R53, control chip U8, electric capacity C2, electric capacity C3, crystal oscillator Y1 forms central controller, electric capacity C2, electric capacity C3, crystal oscillator Y1 forms clock circuit, for control chip U8 provides operating clock signals, one end of electric capacity C2 is connected with one end of crystal oscillator Y1, the other end of electric capacity C2 is connected to power supply 0V, one end of electric capacity C3 is connected with the other end of crystal oscillator Y1, the other end of electric capacity C3 is connected to power supply 0V, one end of crystal oscillator Y1 is connected with the pin 2 of control chip U8, the other end of crystal oscillator Y1 is connected with the pin 3 of control chip U8, the pin 1 of programming port J1 is connected with the pin 4 of control chip U8, the pin 2 of programming port J1 is connected to+5V power supply, the pin 3 of programming port J1 is connected to power supply 0V, the pin 4 of programming port J1 is connected with the pin 13 of control chip U8, the pin 5 of programming port J1 is connected with the pin 12 of control chip U8, commutation circuit is by relay K 1, diode D3, inductance L 6, inductance L 7, aerotron Q5, resistance R65, connector J4, connector J5, connector J6 switches Setting signal, by resistance R64, optocoupler U7, resistance R66, diode D4, relay K 2, aerotron Q6, connector J7 switches main transformer, the pin 6 of control chip U8 is connected with one end of resistance R65, the other end of resistance R65 is connected with aerotron Q5 base stage, aerotron Q5 collecting electrode is connected with the anode of diode D3, the negative electrode of diode D3 is connected to+15V power supply by inductance L 6, the coil of relay K 1 is in parallel with diode D3, aerotron Q5 emitter is connected to power supply 0V by inductance L 7, the pin 1 of relay K 1 is connected with the pin 2 of binding post J4, the pin 4 of relay K 1 is connected with the pin 1 of binding post J4, the pin 2 of relay K 1 is connected with the pin 1 of binding post J5, the pin 5 of relay K 1 is connected with the pin 2 of binding post J5, the pin 3 of relay K 1 is connected with the pin 1 of binding post J6, the pin 6 of relay K 1 is connected with the pin 2 of binding post J6, the pin 7 of control chip U8 is connected with the pin 2 of optocoupler U7, the pin 1 of optocoupler U7 is connected to+5V power supply by resistance R64, the pin 3 of optocoupler U7 is connected to ' 12V power supply, the pin 4 of optocoupler U7 is connected to aerotron Q6 base stage by resistance R66, aerotron Q6 collecting electrode is connected with the anode of diode D3, the negative electrode of diode D3 is connected to ' 12V power supply, the coil of relay K 2 is in parallel with diode D4, aerotron Q6 emitter be connected to power supply ' 0V, the pin 4 of relay K 1 is connected to ' 12V power supply, the pin 6 of relay K 1 is connected with the pin 1 of binding post J7, the pin 2 of binding post J7 be connected to power supply ' 0V, connector J2, resistance R55, optocoupler U4, resistance R57, resistance R58 forms multi-functional conversion input circuit, obtain corresponding mode signal and send into control chip U8, the pin 1 of optocoupler U4 by resistance R55 be connected to ' 12V power supply, the pin 2 of optocoupler U4 is connected with the pin 2 of binding post J2, the pin 1 of binding post J2 be connected to power supply ' 0V, the pin 4 of optocoupler U4 is connected to+5V power supply by resistance R57, the pin 3 of optocoupler U4 is connected to power supply 0V, one end of resistance R58 is connected with the pin 4 of optocoupler U4, one end of resistance R58 is connected with the pin 11 of control chip U8.Supporting leg fluid power system comprises four support oil cylinders, four support oil cylinders are all connected by oil circuit with the first Hydraulic Station, oil circuit between four support oil cylinders and the first Hydraulic Station is respectively arranged a control cock, each support oil cylinder and control cock thereof and the first Hydraulic Station are installed on walking chassis, suspension rod fluid power system comprises suspension rod telescopic oil cylinder and suspension rod hoist cylinder, suspension rod telescopic oil cylinder is all connected by oil circuit with the second Hydraulic Station with suspension rod hoist cylinder, oil circuit between suspension rod telescopic oil cylinder and the second Hydraulic Station is arranged suspension rod to stretch maneuvering valve, oil circuit between suspension rod hoist cylinder and the second Hydraulic Station is arranged suspension rod and be elevated maneuvering valve, bar telescopic oil cylinder, suspension rod hoist cylinder, suspension rod stretches maneuvering valve, suspension rod lifting maneuvering valve and the second Hydraulic Station are installed on hoisting crane.
The invention has the advantages that: the revolution of loop wheel machine, the elevator of loop wheel machine, comprise the parts such as the driving of hydraulic power unit and the walking of crane and all adopt electric drive, not only increase efficiency, reduce cost, the more important thing is and expanded the function that crane outwards provides alternating electromotive force and hydraulic power, thus make crane not only can complete lifting task, can also implement electric welding, illumination, electronic work, facility construction and hydraulic pressure work, facility construction operation, crane is developed to multifunctional direction.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the hydraulic schematic diagram of supporting leg fluid power system of the present invention;
Fig. 3 is the hydraulic schematic diagram of suspension rod fluid power system of the present invention;
Fig. 4 is the circuit connecting relation schematic diagram of drive motor controller of the present invention;
Fig. 5 is one of electrical schematic diagram of drive motor controller of the present invention, and Fig. 5 right part connects with Fig. 6 left part;
Fig. 6 is that electrical schematic diagram two, Fig. 6 left part of drive motor controller of the present invention connects with Fig. 5 right part, and Fig. 6 right part connects with Fig. 7 left part;
Fig. 7 is that electrical schematic diagram three, Fig. 7 left part of drive motor controller of the present invention connects with Fig. 6 right part.
Detailed description of the invention
Multifunctional motor-driven-hydraulic crane that generator set of the present invention does power comprises walking chassis 21 and hoisting crane 27, internal combustion engine generator group 22 is installed on chassis 21 in walking, circuit changing switch 26 and drive motor controller 23, the mouth of internal combustion engine generator group 22 is divided into output circuit and driving circuit by circuit changing switch 26, driving circuit is connected with the drive motor 24 installed bottom walking chassis 21 by drive motor controller 23, drive motor 24 is connected by the road wheel 25 of Transmission with walking chassis 21, output circuit is connected with the arm rotating machine 31 in hoisting crane 27 and hoist cable elevator motor 32 and the first oil pump drive motor 33 and the second oil pump drive motor 34 respectively, first oil pump drive motor 33 is connected with the first oil pump 35 in supporting leg fluid power system, second oil pump drive motor 34 is connected with the second oil pump 36 in suspension rod fluid power system.When hoisting crane 27 works, internal combustion engine generator group 22 provides electric power by output circuit to the arm rotating machine 31 on hoisting crane 27 and hoist cable elevator motor 32 and the first oil pump drive motor 33 and the second oil pump drive motor 34, makes the arm of hoisting crane 27 complete revolution, elevator and drive hydraulic system principle and realizes the flexible of arm and lifting; During crane walking, internal combustion engine generator group 22 is powered to drive motor 24 by driving circuit, and drive motor 24 drives walking chassis 21 to walk, and output circuit and driving circuit are switched by circuit changing switch 26.The present invention is flexible except suspension rod, to rise and retire and the action of very heavy leg still adopts outside hydraulic efficiency pressure system, the revolution of loop wheel machine, the elevator of loop wheel machine, comprise other parts such as the driving of hydraulic power unit and the walking of crane and all adopt electric drive, not only increase efficiency, reduce cost, the more important thing is and expanded the function that crane outwards provides alternating electromotive force and hydraulic power, thus make crane not only can complete lifting task, multiple to output circuit and other preparation of construction can also be connected, implement electric welding, illumination, electronic work, facility construction and hydraulic pressure work, the construction operation of facility, crane is developed to multifunctional direction.
Drive motor controller 23 of the present invention comprises power circuit and control circuit, power circuit comprises rectifier 1, the mouth of rectifier 1 is connected with the input end of filter 2, the mouth of filter 2 is connected with the input end of inversion unit 3, the mouth of inversion unit 3 is connected with the input end of high frequency main transformer 4, the mouth of high frequency main transformer 4 is connected with the input end of hf rectifier 5, and the mouth of hf rectifier 5 is connected with the input end of high-pass filter 6.Control circuit comprises high-frequency signal circuit for generating 7, frequency detection circuit 8, signal transacting arithmetical circuit 9, sample circuit 10, central controller 11, commutation circuit 12, multi-functional conversion input circuit 13.This structure can realize drive motor controller 23 makes the variable three plase alternating current of voltage variable (150 ~ 380V), frequency (20Hz ~ 50Hz) convert the voltage meeting DC machine operating characteristic to when walking, the a-c cycle of the vdc and the input that export synchronously changes, internal combustion engine generator group is made to be operated in speed variable operating mode, controlled the running rotating speed of unit by the Das Gaspedal of unit primary mover (spark ignition engine, diesel engine or natural gas engine), make unit export the alternating current of a natural frequency conversion, transformation to controller.Be that direct-drive motor exports a direct current (DC) meeting DC motor Driver characteristic and voltage and incoming frequency and synchronously change by this controller, thus realization unit primary mover Das Gaspedal controls direct current movable motor stepless change, reaches the object of simulated automotive walking characteristic, reduce the noise that electric self-propelled mobile power station produces in the process of walking, reduce mechanical wear and energy resource consumption.The present invention adopts high-frequency transformer to substitute the Industrial Frequency Transformer generally adopted in existing direct current motor drive circuit, reaches and reduces equipment volume and weight, reduces copper loss, the object reduced costs.
In drive motor controller 23 of the present invention, the annexation of power circuit and control circuit is as follows: rectifier 1 is by the voltage of input, the three plase alternating current of changeable frequency is by being rectified into direct current (DC) after rectifier U9, filter 2 is by electric capacity C1, electric capacity C5, electric capacity C6 and resistance R1, resistance R2 forms, electric capacity C1 is Absorption Capacitance, C5, C6 is filter capacitor, R1, R2 is equalizing resistance, one end of electric capacity C1 is connected with the positive output end of rectifier U9, the other end is connected with the negative output terminal of rectifier U9, resistance R1 is in parallel with electric capacity C5, resistance R2 is in parallel with electric capacity C6, electric capacity C5 positive pole is connected with one end of electric capacity C1, electric capacity C5 negative pole is connected with electric capacity C6 positive pole, electric capacity C6 negative pole is connected with the other end of electric capacity C1, the direct current (DC) of input is passed through inversion unit U10 inverter output frequency 10 ~ 100kHz high-frequency alternating current by inversion unit 3, high frequency main transformer 4 is by high-frequency transformer T3, DC contactor K3 and binding post J8 forms, binding post J8 is DC contactor K3 coil outer binding post, the number of turn of high-frequency transformer T3 is realized changing by controlling DC contactor K3, high-frequency transformer T3 is by the winding I of primary side, winding II and secondary side winding are formed, primary side two windings in series of high-frequency transformer T3, the other end of first side winding I exchanges outgoing side one end and is connected with inversion unit U10, the other end of first side winding II exchanges the outgoing side other end and is connected with inversion unit U10, the open contact of DC contactor K3 is in parallel with first side winding II, the coil two ends of DC contactor K3 are connected respectively to pin 1 and the pin 2 of binding post J8, the secondary side winding two ends of high-frequency transformer T3 export, the alternating current that secondary side winding two ends obtain by high-frequency transformer T3 exports direct current (DC) by hf rectifier 5U13 rectification, high-pass filter 6 is made up of inductance L 4 and electric capacity C7, one end of inductance L 4 is connected with the positive output end of hf rectifier U13, the other end of inductance L 4 is connected with the positive pole of electric capacity C7, the negative pole of electric capacity C7 is connected with the negative output terminal of hf rectifier U13, the outside positive output end of dual-purpose machine is connected with the positive pole of electric capacity C7, the outside negative output terminal of dual-purpose machine is connected with the negative pole of electric capacity C7, the pin 1 of the power module U15 of high-frequency signal circuit for generating 7 be connected to power supply ' 12V, the pin 2 of power module U15 be connected to power supply ' 0V, the pin 3 of power module U15 obtains power supply-15V, the pin 4 of power module U15 is connected to 0V power supply, the pin 5 of power module U15 obtains power supply+15V, electric capacity C41 connects with electric capacity C42, the negative pole of electric capacity C41 is connected with the pin 3 of power module U15, the positive pole of electric capacity C41 is connected with the pin 4 of power module U15, the positive pole of electric capacity C42 is connected with the pin 5 of power module U15, electric capacity C44 is in parallel with electric capacity C41, electric capacity C43 is in parallel with electric capacity C42, the pin 1 of power module U16 is connected to power supply+15V, the pin 2 of power module U16 is connected to power supply 0V, the positive pole of electric capacity C46 is connected with the pin 3 of power module U16, the negative pole of electric capacity C46 is connected to power supply 0V, electric capacity C45 is in parallel with electric capacity C46, to determining voltage signal QG through electric capacity C9, electric capacity C10, resistance R4, resistance R5, op amp U15, resistance R6, the filter network that electric capacity C11 forms is to 5 pin of control chip U1, for control chip U1 work provides Setting signal, one end of resistance R4 is connected with electric capacity C9, the electric capacity C9 other end is connected to power supply 0V, the other end of resistance R4 is connected with the in-phase input end of op amp U15, resistance R5 is connected with the in-phase input end of op amp U15 with one end after electric capacity C10 parallel connection, the other end is connected to power supply 0V, the inverting input of op amp U15 is connected with mouth, control chip U1 pin 5 is connected to by resistance R6, the pin 5 of control chip U1 is connected with electric capacity C11 one end, the electric capacity C11 other end is connected to power supply 0V, resistance R7, resistance R8, electric capacity C28, electric capacity C29 makes control chip U1 work can soft start, resistance R8 is in parallel with electric capacity C29, the positive pole of electric capacity C29 and control chip U1 pin 1, the negative pole of electric capacity C29 is connected to power supply 0V, resistance R7 connects with electric capacity C28, the negative pole of electric capacity C28 is connected to power supply 0V, the positive pole of electric capacity C29 and control chip U1 pin 2, the other end of resistance R7 is connected with control chip U1 pin 1, current sensor U11 carries out sampling gained signal through resistance R14 to high-frequency transformer primary side current, resistance R15, resistance R16, resistance R17, the filter network that electric capacity C18 forms is to 4 pin of control chip U1, for control chip U1 work provides Setting signal, resistance R16 connects with resistance R17, the other end of resistance R17 is connected with the output of current sensor U11, the other end of resistance R16 is connected with control chip U1 pin 4, control chip U1 pin 4 is connected to-15V power supply by resistance R14, control chip U1 pin 4 is connected to power supply 0V by resistance R15, harmonic compensation electricity routing resistance R11, resistance R12, electric capacity C15, electric capacity C16, op amp U16 forms, the in-phase input end of op amp U16 is connected with control chip U1 pin 8, the inverting input of op amp U16 is connected with mouth, resistance R11, electric capacity C16 is in parallel with resistance R12 and electric capacity C15 after connecting, electric capacity C15 one end is connected with control chip U1 pin 4, the electric capacity C15 other end is connected with op amp U16 mouth, concussion timing circuit is by resistance R9, resistance R10, electric capacity C12, electric capacity C14 forms, resistance R9 is in parallel with resistance R10, one end is connected with control chip U1 pin 8, the other end is connected to power supply 0V, electric capacity C12 is in parallel with electric capacity C14, one end is connected with control chip U1 pin 9, the other end is connected to power supply 0V, current sensor U11 carries out sampling gained signal through resistance R17 to high-frequency transformer primary side current, resistance R18, resistance R19, electric capacity C18, electric capacity C19 turns off for control chip U1 provides outside, resistance R17 and resistance R18 is connected in series to control chip U1 pin 16, resistance R19 is in parallel with electric capacity C19, one end is connected with control chip U1 pin 16, the other end is connected to power supply 0V, resistance R13 is the protective resistance of control chip U1 output stage biased voltage input, electric capacity C13, electric capacity C17, electric capacity C30, electric capacity C31 is filter capacitor, resistance R13 one end is connected with control chip U1 pin 15, the resistance R13 other end is connected with control chip U1 pin 13, electric capacity C13 is in parallel with electric capacity C30, one end is connected with control chip U1 pin 15, the other end is connected to power supply 0V, electric capacity C17 is in parallel with electric capacity C31, one end is connected with control chip U1 pin 13, the other end is connected to power supply 0V, by diode D10, diode D11, resistance R20, resistance R21, resistance R22, resistance R23, aerotron Q1, aerotron Q2, aerotron Q3, aerotron Q4, resistance R24, electric capacity C20 forms full-bridge circuit, two paths of signals is through isolating transformer T1, isolating transformer T2, electric capacity C21, electric capacity C22, electric capacity C23, electric capacity C24, resistance R25, resistance R26, resistance R27, resistance R28, resistance R29, resistance R30, resistance R31, resistance R70, diode D12, diode D13, diode D14, diode D15 becomes four road signals and drives inversion unit, the base stage of aerotron Q1 is connected with control chip U1 pin 14 by resistance R20, the base stage of aerotron Q3 is connected with control chip U1 pin 14 by resistance R21, the negative electrode of diode D10 is connected with control chip U1 pin 14, the anode of diode D10 is connected to power supply 0V, the base stage of aerotron Q2 is connected with control chip U1 pin 11 by resistance R22, the base stage of aerotron Q4 is connected with control chip U1 pin 11 by resistance R23, the negative electrode of diode D11 is connected with control chip U1 pin 14, the anode of diode D11 is connected to power supply 0V, be connected with the pin 1 of isolating transformer T2 with isolating transformer T1 after aerotron Q1 collecting electrode is connected with aerotron Q3 collecting electrode, after aerotron Q2 collecting electrode is connected with aerotron Q4 collecting electrode, be connected with the one end after resistance R24 and electric capacity C20 parallel connection, resistance R24 is connected with the pin 2 of isolating transformer T2 with isolating transformer T1 with the other end after electric capacity C20 parallel connection, aerotron Q3 emitter is connected to power supply 0V, aerotron Q4 emitter is connected to power supply 0V, aerotron Q1 emitter is connected with aerotron Q2 emitter, it is in parallel with resistance R25 after diode D15 connects with resistance R70, diode D15 negative electrode is connected with isolating transformer T1 pin 6, the other end of resistance R70 is connected with electric capacity C21 one end, the electric capacity C21 other end is connected with isolating transformer T1 pin 5, it is in parallel with resistance R26 after diode D12 connects with resistance R29, diode D12 negative electrode is connected with isolating transformer T1 pin 3, the other end of resistance R29 is connected with electric capacity C22 one end, the electric capacity C22 other end is connected with isolating transformer T1 pin 4, it is in parallel with resistance R27 after diode D13 connects with resistance R30, diode D13 negative electrode is connected with isolating transformer T2 pin 6, the other end of resistance R30 is connected with electric capacity C23 one end, the electric capacity C23 other end is connected with isolating transformer T2 pin 5, it is in parallel with resistance R28 after diode D14 connects with resistance R31, diode D14 negative electrode is connected with isolating transformer T2 pin 3, the other end of resistance R31 is connected with electric capacity C24 one end, the electric capacity C24 other end is connected with isolating transformer T2 pin 4, respectively at electric capacity C21, electric capacity C22, electric capacity C23, electric capacity C24 two ends obtain four road signals and drive inversion unit, resistance R54, diode D2, optocoupler U6, resistance R61, R62 component frequency testing circuit 8, obtain corresponding frequency signal and send into control chip U8, one end of resistance R54 is connected with the U phase of three plase alternating current, the other end of resistance R54 is connected with the anode of diode D2, the negative electrode of diode D2 is connected with the pin 1 of optocoupler U6, the pin 2 of optocoupler U6 is connected with the V phase of three plase alternating current, the pin 3 of optocoupler U6 is connected with one end of R61, the other end of R61 is connected to+5V power supply, the pin 3 of optocoupler U6 is connected with one end of R62, the other end of R62 is connected to the pin 9 of control chip U8, in signal transacting arithmetical circuit 9, control chip U8 exports through resistance R63 signal transacting, voltage signal is obtained after electric capacity C4, Setting signal UQG is obtained after the voltage follower that this signal is consisted of the C part U3C of op amp U3, control chip U8 pin 5 is connected with op amp U3 pin 10 by resistance R63, one end of electric capacity C4 is connected with op amp U3 pin 10, the other end of electric capacity C4 is connected to power supply 0V, op amp U3 pin 8 is connected with op amp U3 pin 9, the current sensor that circuit uses is current mode current sensor, resistance R52 obtains voltage through diode D1, resistance R32, electric capacity C25, inductance L 5, resistance R3, electric capacity C26, the filter network of C27 composition, obtain required voltage, receive the end of oppisite phase of the part A U2A of op amp U2, current sensor U12 samples the signal that obtains by diode D1 to load current, inductance L 5, resistance R3 is connected with op amp U2 pin 2, diode D1 anode exports with sensor and is connected, one end of resistance R52 is connected with diode D1 anode, the other end of resistance R52 is connected to power supply 0V, resistance R32 is connected with diode D1 negative electrode with one end after electric capacity C25 parallel connection, the other end is connected to power supply 0V, electric capacity C26 one end is connected with resistance R3 junction with inductance L 5, the electric capacity C26 other end is connected to power supply 0V, electric capacity C27 one end is connected with op amp U2 pin 2, the electric capacity C27 other end is connected to power supply 0V, resistance R40, resistance R41, resistance R42 carries out dividing potential drop to output voltage, voltage sensor gathers the voltage on resistance R42, the voltage sensor that circuit uses is current mode voltage sensor, resistance R44 obtains required voltage, this voltage and Setting signal UQG are through the part B by U3B op amp U3, resistance R43, resistance R45, resistance R46, resistance R47, resistance R48, the voltage that the voltage signal obtained after the P regulating control that resistance R49 forms obtains after the voltage follower that the part A U3A of op amp U3 forms is by resistance R37, resistance R38, resistance R39, diode D9, diode D6, diode D5 discharge and recharge network carries out discharge and recharge to electric capacity C8, electric capacity C8 obtains to determining voltage signal QG, the outside positive output end of dual-purpose machine is by resistance R40, resistance R41 and resistance R42 is connected in series to the outside negative output terminal of dual-purpose machine, voltage sensor U14 pin 1 is connected with resistance R42 junction with resistance R40, voltage sensor U14 pin 2 is connected with resistance R42 junction with resistance R41, voltage sensor U14 pin 3 and resistance R44 one end are connected to power supply 0V, voltage sensor U14 pin 4 is connected with the resistance R44 other end, voltage sensor U14 pin 4 is connected with op amp U2 pin 6, voltage sensor U14 pin 4 is connected with op amp U3 pin 6 by resistance R45, op amp U3 pin 6 is connected with op amp U3 pin 7 by resistance R43, op amp U3 pin 6 is connected to power supply 0V by resistance R46, op amp U3 pin 6 is connected to+5V power supply by resistance R48, op amp U3 pin 5 is connected to power supply 0V by resistance R49, op amp U3 pin 5 is connected with op amp U3 pin 8 by resistance R48, op amp U3 pin 7 is connected with op amp U3 pin 3, op amp U3 pin 1 is connected with op amp U3 pin 2, it is in parallel with resistance R38 after resistance R39 connects with diode D9, diode D9 negative electrode is connected with op amp U3 pin 1, the other end of resistance R39 is connected with electric capacity C8 positive pole, electric capacity C8 negative pole is connected to power supply 0V, resistance R37 connects with diode D6, the other end of resistance R37 is connected with electric capacity C8 positive pole, diode D6 negative electrode is connected with op amp U2 pin 1, diode D5 anode is connected with diode D6 anode, diode D5 negative electrode is connected with op amp U2 pin 7, resistance R51, diode D8 forms current protection indicating circuit, part A U2A and the resistance R50 of op amp U2 form hysteresis loop comparator, when anti-phase input terminal voltage is greater than in-phase input end voltage, during the voltage namely obtained on R34, mouth is active potential, when anti-phase input terminal voltage is less than in-phase input end voltage, mouth is high potential, the protection value of outgoing current is changed by adjusting resistance R34 value, resistance R34 pin 1 is connected to+5V power supply, resistance R34 pin 3 is connected to power supply 0V, resistance R34 pin 2 is connected with op amp U2 pin 3, op amp U2 pin 3 is connected with op amp U2 pin 1 by resistance R50, resistance R51 is connected with diode D8, diode D8 anode is connected to+5V power supply, the resistance R51 other end is connected with op amp U2 pin 1, resistance R36, diode D7 forms over voltage indicating circuit, part B U2B and the resistance R35 of op amp U2 form hysteresis loop comparator, when anti-phase input terminal voltage is greater than in-phase input end voltage, during the voltage namely obtained on R33, mouth is active potential, when anti-phase input terminal voltage is less than in-phase input end voltage, mouth is high potential, the protection value of output voltage is changed by adjusting resistance R33 value, resistance R33 pin 1 is connected to+5V power supply, resistance R33 pin 3 is connected to power supply 0V, resistance R33 pin 2 is connected with op amp U2 pin 5, op amp U2 pin 5 is connected with op amp U2 pin 7 by resistance R35, resistance R36 and diode D7, diode D7 negative electrode is connected with op amp U2 pin 7, the resistance R51 other end is connected to+5V power supply, the current sensor U11 of sample circuit 10 samples to high-frequency transformer primary side current, current sensor U12 samples to load current, voltage sensor U14 samples to on-load voltage, connector J3, resistance R56, optocoupler U5, resistance R59, resistance R60 forms temperature sampling circuit, obtain corresponding temperature signal and send into control chip U8, the pin 1 of optocoupler U5 by resistance R56 be connected to ' 12V power supply, the pin 2 of optocoupler U5 is connected with the pin 2 of binding post J3, the pin 1 of binding post J3 be connected to power supply ' 0V, the pin 4 of optocoupler U5 is connected to+5V power supply by resistance R59, the pin 3 of optocoupler U5 is connected to power supply 0V, one end of resistance R60 is connected with the pin 4 of optocoupler U5, one end of resistance R60 is connected with the pin 10 of control chip U8, programming port J1, resistance R53, control chip U8, electric capacity C2, electric capacity C3, crystal oscillator Y1 forms central controller 11, electric capacity C2, electric capacity C3, crystal oscillator Y1 forms clock circuit, for control chip U8 provides operating clock signals, one end of electric capacity C2 is connected with one end of crystal oscillator Y1, the other end of electric capacity C2 is connected to power supply 0V, one end of electric capacity C3 is connected with the other end of crystal oscillator Y1, the other end of electric capacity C3 is connected to power supply 0V, one end of crystal oscillator Y1 is connected with the pin 2 of control chip U8, the other end of crystal oscillator Y1 is connected with the pin 3 of control chip U8, the pin 1 of programming port J1 is connected with the pin 4 of control chip U8, the pin 2 of programming port J1 is connected to+5V power supply, the pin 3 of programming port J1 is connected to power supply 0V, the pin 4 of programming port J1 is connected with the pin 13 of control chip U8, the pin 5 of programming port J1 is connected with the pin 12 of control chip U8, commutation circuit 12 is by relay K 1, diode D3, inductance L 6, inductance L 7, aerotron Q5, resistance R65, connector J4, connector J5, connector J6 switches Setting signal, by resistance R64, optocoupler U7, resistance R66, diode D4, relay K 2, aerotron Q6, connector J7 switches main transformer, the pin 6 of control chip U8 is connected with one end of resistance R65, the other end of resistance R65 is connected with aerotron Q5 base stage, aerotron Q5 collecting electrode is connected with the anode of diode D3, the negative electrode of diode D3 is connected to+15V power supply by inductance L 6, the coil of relay K 1 is in parallel with diode D3, aerotron Q5 emitter is connected to power supply 0V by inductance L 7, the pin 1 of relay K 1 is connected with the pin 2 of binding post J4, the pin 4 of relay K 1 is connected with the pin 1 of binding post J4, the pin 2 of relay K 1 is connected with the pin 1 of binding post J5, the pin 5 of relay K 1 is connected with the pin 2 of binding post J5, the pin 3 of relay K 1 is connected with the pin 1 of binding post J6, the pin 6 of relay K 1 is connected with the pin 2 of binding post J6, the pin 7 of control chip U8 is connected with the pin 2 of optocoupler U7, the pin 1 of optocoupler U7 is connected to+5V power supply by resistance R64, the pin 3 of optocoupler U7 is connected to ' 12V power supply, the pin 4 of optocoupler U7 is connected to aerotron Q6 base stage by resistance R66, aerotron Q6 collecting electrode is connected with the anode of diode D3, the negative electrode of diode D3 is connected to ' 12V power supply, the coil of relay K 2 is in parallel with diode D4, aerotron Q6 emitter be connected to power supply ' 0V, the pin 4 of relay K 1 is connected to ' 12V power supply, the pin 6 of relay K 1 is connected with the pin 1 of binding post J7, the pin 2 of binding post J7 be connected to power supply ' 0V, connector J2, resistance R55, optocoupler U4, resistance R57, resistance R58 forms multi-functional conversion input circuit 13, obtain corresponding mode signal and send into control chip U8, the pin 1 of optocoupler U4 by resistance R55 be connected to ' 12V power supply, the pin 2 of optocoupler U4 is connected with the pin 2 of binding post J2, the pin 1 of binding post J2 be connected to power supply ' 0V, the pin 4 of optocoupler U4 is connected to+5V power supply by resistance R57, the pin 3 of optocoupler U4 is connected to power supply 0V, one end of resistance R58 is connected with the pin 4 of optocoupler U4, one end of resistance R58 is connected with the pin 11 of control chip U8.Said structure have stable, failure rate is low, control accuracy are high, the advantage of relative inexpensiveness.
Supporting leg fluid power system of the present invention comprises four support oil cylinders 41, four support oil cylinders 41 are all connected by oil circuit with the first Hydraulic Station 43, oil circuit between four support oil cylinders 41 and the first Hydraulic Station 43 respectively arranges a control cock 42, each support oil cylinder 41 and control cock 42 thereof and the first Hydraulic Station 43 are installed on walking chassis 21, suspension rod fluid power system comprises suspension rod telescopic oil cylinder 44 and suspension rod hoist cylinder 45, suspension rod telescopic oil cylinder 44 and suspension rod hoist cylinder 45 are all connected by oil circuit with the second Hydraulic Station 46, oil circuit between suspension rod telescopic oil cylinder 44 and the second Hydraulic Station 46 is arranged suspension rod to stretch maneuvering valve 47, oil circuit between suspension rod hoist cylinder 45 and the second Hydraulic Station 46 arranges suspension rod and is elevated maneuvering valve 48, bar telescopic oil cylinder 44, suspension rod hoist cylinder 45, suspension rod stretches maneuvering valve 47, suspension rod lifting maneuvering valve 48 and the second Hydraulic Station 46 are installed on hoisting crane 27.Existing cranemobile is owing to passing through each hydraulic pump works of internal-combustion engine drives, therefore need between loop wheel machine and chassis through hydraulic oil pipe, and during loop wheel machine work, need revolution, therefore the oil connector of rotatable cooperation need be set in rotating shaft place of loop wheel machine, and in actual use often there is the situation that leakage of oil is even thrown off in oil connector place, cause hydraulic efficiency pressure system malfunctioning, the unforeseen circumstances that arm plunks down also is there will be time serious, potential safety hazard is larger, and in the said structure that the present invention adopts, a set of independently hydraulic efficiency pressure system is respectively established on hoisting crane 27 and walking chassis 21, be connected by means of only wire between hoisting crane 27 with walking chassis 21, there is not the hidden danger that the leakage of oil of oil connector place is even thrown off, be conducive to improving safety when crane uses.
Claims (3)
1. multifunctional motor-driven-the hydraulic crane of power is made of generator set, it is characterized in that: comprise walking chassis (21) and hoisting crane (27), walking chassis (21) is upper installs internal combustion engine generator group (22), circuit changing switch (26) and drive motor controller (23), the mouth of internal combustion engine generator group (22) is divided into output circuit and driving circuit by circuit changing switch (26), the drive motor (24) that driving circuit is installed by drive motor controller (23) and walking chassis (21) bottom is connected, drive motor (24) is connected by the road wheel (25) of Transmission with walking chassis (21), output circuit is connected with the arm rotating machine (31) in hoisting crane (27) and hoist cable elevator motor (32) and the first oil pump drive motor (33) and the second oil pump drive motor (34) respectively, first oil pump drive motor (33) is connected with the first oil pump (35) in supporting leg fluid power system, second oil pump drive motor (34) is connected with the second oil pump (36) in suspension rod fluid power system, described drive motor controller (23) comprises power circuit and control circuit, power circuit comprises rectifier (1), the mouth of rectifier (1) is connected with the input end of filter (2), the mouth of filter (2) is connected with the input end of inversion unit (3), the mouth of inversion unit (3) is connected with the input end of high frequency main transformer (4), the mouth of high frequency main transformer (4) is connected with the input end of hf rectifier (5), the mouth of hf rectifier (5) is connected with the input end of high-pass filter (6), supporting leg fluid power system comprises four support oil cylinders (41), four support oil cylinders (41) are all connected by oil circuit with the first Hydraulic Station (43), oil circuit between four support oil cylinders (41) and the first Hydraulic Station (43) is respectively arranged a control cock (42), each support oil cylinder (41) and control cock (42) thereof and the first Hydraulic Station (43) are installed in walking chassis (21), suspension rod fluid power system comprises suspension rod telescopic oil cylinder (44) and suspension rod hoist cylinder (45), suspension rod telescopic oil cylinder (44) is all connected by oil circuit with the second Hydraulic Station (46) with suspension rod hoist cylinder (45), oil circuit between suspension rod telescopic oil cylinder (44) and the second Hydraulic Station (46) is arranged suspension rod to stretch maneuvering valve (47), oil circuit between suspension rod hoist cylinder (45) and the second Hydraulic Station (46) is arranged suspension rod and be elevated maneuvering valve (48), suspension rod telescopic oil cylinder (44), suspension rod hoist cylinder (45), suspension rod stretches maneuvering valve (47), suspension rod lifting maneuvering valve (48) and the second Hydraulic Station (46) are installed on hoisting crane (27).
2. generator set according to claim 1 does the multifunctional motor-driven-hydraulic crane of power, it is characterized in that: control circuit comprises high-frequency signal circuit for generating (7), frequency detection circuit (8), signal transacting arithmetical circuit (9), sample circuit (10), central controller (11), commutation circuit (12), multi-functional conversion input circuit (13).
3. generator set according to claim 2 does the multifunctional motor-driven-hydraulic crane of power, it is characterized in that: the annexation of power circuit and control circuit is as follows: rectifier (1) is by the voltage of input, the three plase alternating current of changeable frequency is by being rectified into direct current (DC) after rectifier U9, filter (2) is by electric capacity C1, electric capacity C5, electric capacity C6 and resistance R1, resistance R2 forms, electric capacity C1 is Absorption Capacitance, C5, C6 is filter capacitor, R1, R2 is equalizing resistance, one end of electric capacity C1 is connected with the positive output end of rectifier U9, the other end is connected with the negative output terminal of rectifier U9, resistance R1 is in parallel with electric capacity C5, resistance R2 is in parallel with electric capacity C6, electric capacity C5 positive pole is connected with one end of electric capacity C1, electric capacity C5 negative pole is connected with electric capacity C6 positive pole, electric capacity C6 negative pole is connected with the other end of electric capacity C1, the direct current (DC) of input is passed through inversion unit U10 inverter output frequency 10 ~ 100kHz high-frequency alternating current by inversion unit (3), high frequency main transformer (4) is by high-frequency transformer T3, DC contactor K3 and binding post J8 forms, binding post J8 is DC contactor K3 coil outer binding post, the number of turn of high-frequency transformer T3 is realized changing by controlling DC contactor K3, high-frequency transformer T3 is by the winding I of primary side, winding II and secondary side winding are formed, primary side two windings in series of high-frequency transformer T3, the other end of first side winding I exchanges outgoing side one end and is connected with inversion unit U10, the other end of first side winding II exchanges the outgoing side other end and is connected with inversion unit U10, the open contact of DC contactor K3 is in parallel with first side winding II, the coil two ends of DC contactor K3 are connected respectively to pin 1 and the pin 2 of binding post J8, the secondary side winding two ends of high-frequency transformer T3 export, the alternating current that secondary side winding two ends obtain by high-frequency transformer T3 exports direct current (DC) by hf rectifier (5) U13 rectification, high-pass filter (6) is made up of inductance L 4 and electric capacity C7, one end of inductance L 4 is connected with the positive output end of hf rectifier U13, the other end of inductance L 4 is connected with the positive pole of electric capacity C7, the negative pole of electric capacity C7 is connected with the negative output terminal of hf rectifier U13, the outside positive output end of dual-purpose machine is connected with the positive pole of electric capacity C7, the outside negative output terminal of dual-purpose machine is connected with the negative pole of electric capacity C7, the pin 1 of the power module U15 of high-frequency signal circuit for generating (7) be connected to power supply ' 12V, the pin 2 of power module U15 be connected to power supply ' 0V, the pin 3 of power module U15 obtains power supply-15V, the pin 4 of power module U15 is connected to 0V power supply, the pin 5 of power module U15 obtains power supply+15V, electric capacity C41 connects with electric capacity C42, the negative pole of electric capacity C41 is connected with the pin 3 of power module U15, the positive pole of electric capacity C41 is connected with the pin 4 of power module U15, the positive pole of electric capacity C42 is connected with the pin 5 of power module U15, electric capacity C44 is in parallel with electric capacity C41, electric capacity C43 is in parallel with electric capacity C42, the pin 1 of power module U16 is connected to power supply+15V, the pin 2 of power module U16 is connected to power supply 0V, the positive pole of electric capacity C46 is connected with the pin 3 of power module U16, the negative pole of electric capacity C46 is connected to power supply 0V, electric capacity C45 is in parallel with electric capacity C46, to determining voltage signal QG through electric capacity C9, electric capacity C10, resistance R4, resistance R5, op amp U15, resistance R6, the filter network that electric capacity C11 forms is to 5 pin of control chip U1, for control chip U1 work provides Setting signal, one end of resistance R4 is connected with electric capacity C9, the electric capacity C9 other end is connected to power supply 0V, the other end of resistance R4 is connected with the in-phase input end of op amp U15, resistance R5 is connected with the in-phase input end of op amp U15 with one end after electric capacity C10 parallel connection, the other end is connected to power supply 0V, the inverting input of op amp U15 is connected with mouth, control chip U1 pin 5 is connected to by resistance R6, the pin 5 of control chip U1 is connected with electric capacity C11 one end, the electric capacity C11 other end is connected to power supply 0V, resistance R7, resistance R8, electric capacity C28, electric capacity C29 makes control chip U1 work can soft start, resistance R8 is in parallel with electric capacity C29, the positive pole of electric capacity C29 and control chip U1 pin 1, the negative pole of electric capacity C29 is connected to power supply 0V, resistance R7 connects with electric capacity C28, the negative pole of electric capacity C28 is connected to power supply 0V, the positive pole of electric capacity C29 and control chip U1 pin 2, the other end of resistance R7 is connected with control chip U1 pin 1, current sensor U11 carries out sampling gained signal through resistance R14 to high-frequency transformer primary side current, resistance R15, resistance R16, resistance R17, the filter network that electric capacity C18 forms is to 4 pin of control chip U1, for control chip U1 work provides Setting signal, resistance R16 connects with resistance R17, the other end of resistance R17 is connected with the output of current sensor U11, the other end of resistance R16 is connected with control chip U1 pin 4, control chip U1 pin 4 is connected to-15V power supply by resistance R14, control chip U1 pin 4 is connected to power supply 0V by resistance R15, harmonic compensation electricity routing resistance R11, resistance R12, electric capacity C15, electric capacity C16, op amp U16 forms, the in-phase input end of op amp U16 is connected with control chip U1 pin 8, the inverting input of op amp U16 is connected with mouth, resistance R11, electric capacity C16 is in parallel with resistance R12 and electric capacity C15 after connecting, electric capacity C15 one end is connected with control chip U1 pin 4, the electric capacity C15 other end is connected with op amp U16 mouth, concussion timing circuit is by resistance R9, resistance R10, electric capacity C12, electric capacity C14 forms, resistance R9 is in parallel with resistance R10, one end is connected with control chip U1 pin 8, the other end is connected to power supply 0V, electric capacity C12 is in parallel with electric capacity C14, one end is connected with control chip U1 pin 9, the other end is connected to power supply 0V, current sensor U11 carries out sampling gained signal through resistance R17 to high-frequency transformer primary side current, resistance R18, resistance R19, electric capacity C18, electric capacity C19 turns off for control chip U1 provides outside, resistance R17 and resistance R18 is connected in series to control chip U1 pin 16, resistance R19 is in parallel with electric capacity C19, one end is connected with control chip U1 pin 16, the other end is connected to power supply 0V, resistance R13 is the protective resistance of control chip U1 output stage biased voltage input, electric capacity C13, electric capacity C17, electric capacity C30, electric capacity C31 is filter capacitor, resistance R13 one end is connected with control chip U1 pin 15, the resistance R13 other end is connected with control chip U1 pin 13, electric capacity C13 is in parallel with electric capacity C30, one end is connected with control chip U1 pin 15, the other end is connected to power supply 0V, electric capacity C17 is in parallel with electric capacity C31, one end is connected with control chip U1 pin 13, the other end is connected to power supply 0V, by diode D10, diode D11, resistance R20, resistance R21, resistance R22, resistance R23, aerotron Q1, aerotron Q2, aerotron Q3, aerotron Q4, resistance R24, electric capacity C20 forms full-bridge circuit, two paths of signals is through isolating transformer T1, isolating transformer T2, electric capacity C21, electric capacity C22, electric capacity C23, electric capacity C24, resistance R25, resistance R26, resistance R27, resistance R28, resistance R29, resistance R30, resistance R31, resistance R70, diode D12, diode D13, diode D14, diode D15 becomes four road signals and drives inversion unit, the base stage of aerotron Q1 is connected with control chip U1 pin 14 by resistance R20, the base stage of aerotron Q3 is connected with control chip U1 pin 14 by resistance R21, the negative electrode of diode D10 is connected with control chip U1 pin 14, the anode of diode D10 is connected to power supply 0V, the base stage of aerotron Q2 is connected with control chip U1 pin 11 by resistance R22, the base stage of aerotron Q4 is connected with control chip U1 pin 11 by resistance R23, the negative electrode of diode D11 is connected with control chip U1 pin 14, the anode of diode D11 is connected to power supply 0V, be connected with the pin 1 of isolating transformer T2 with isolating transformer T1 after aerotron Q1 collecting electrode is connected with aerotron Q3 collecting electrode, after aerotron Q2 collecting electrode is connected with aerotron Q4 collecting electrode, be connected with the one end after resistance R24 and electric capacity C20 parallel connection, resistance R24 is connected with the pin 2 of isolating transformer T2 with isolating transformer T1 with the other end after electric capacity C20 parallel connection, aerotron Q3 emitter is connected to power supply 0V, aerotron Q4 emitter is connected to power supply 0V, aerotron Q1 emitter is connected with aerotron Q2 emitter, it is in parallel with resistance R25 after diode D15 connects with resistance R70, diode D15 negative electrode is connected with isolating transformer T1 pin 6, the other end of resistance R70 is connected with electric capacity C21 one end, the electric capacity C21 other end is connected with isolating transformer T1 pin 5, it is in parallel with resistance R26 after diode D12 connects with resistance R29, diode D12 negative electrode is connected with isolating transformer T1 pin 3, the other end of resistance R29 is connected with electric capacity C22 one end, the electric capacity C22 other end is connected with isolating transformer T1 pin 4, it is in parallel with resistance R27 after diode D13 connects with resistance R30, diode D13 negative electrode is connected with isolating transformer T2 pin 6, the other end of resistance R30 is connected with electric capacity C23 one end, the electric capacity C23 other end is connected with isolating transformer T2 pin 5, it is in parallel with resistance R28 after diode D14 connects with resistance R31, diode D14 negative electrode is connected with isolating transformer T2 pin 3, the other end of resistance R31 is connected with electric capacity C24 one end, the electric capacity C24 other end is connected with isolating transformer T2 pin 4, respectively at electric capacity C21, electric capacity C22, electric capacity C23, electric capacity C24 two ends obtain four road signals and drive inversion unit, resistance R54, diode D2, optocoupler U6, resistance R61, R62 component frequency testing circuit (8), obtain corresponding frequency signal and send into control chip U8, one end of resistance R54 is connected with the U phase of three plase alternating current, the other end of resistance R54 is connected with the anode of diode D2, the negative electrode of diode D2 is connected with the pin 1 of optocoupler U6, the pin 2 of optocoupler U6 is connected with the V phase of three plase alternating current, the pin 3 of optocoupler U6 is connected with one end of R61, the other end of R61 is connected to+5V power supply, the pin 3 of optocoupler U6 is connected with one end of R62, the other end of R62 is connected to the pin 9 of control chip U8, in signal transacting arithmetical circuit (9), control chip U8 exports through resistance R63 signal transacting, voltage signal is obtained after electric capacity C4, Setting signal UQG is obtained after the voltage follower that this signal is consisted of the C part U3C of op amp U3, control chip U8 pin 5 is connected with op amp U3 pin 10 by resistance R63, one end of electric capacity C4 is connected with op amp U3 pin 10, the other end of electric capacity C4 is connected to power supply 0V, op amp U3 pin 8 is connected with op amp U3 pin 9, the current sensor that circuit uses is current mode current sensor, resistance R52 obtains voltage through diode D1, resistance R32, electric capacity C25, inductance L 5, resistance R3, electric capacity C26, the filter network of C27 composition, obtain required voltage, receive the end of oppisite phase of the part A U2A of op amp U2, current sensor U12 samples the signal that obtains by diode D1 to load current, inductance L 5, resistance R3 is connected with op amp U2 pin 2, diode D1 anode exports with sensor and is connected, one end of resistance R52 is connected with diode D1 anode, the other end of resistance R52 is connected to power supply 0V, resistance R32 is connected with diode D1 negative electrode with one end after electric capacity C25 parallel connection, the other end is connected to power supply 0V, electric capacity C26 one end is connected with resistance R3 junction with inductance L 5, the electric capacity C26 other end is connected to power supply 0V, electric capacity C27 one end is connected with op amp U2 pin 2, the electric capacity C27 other end is connected to power supply 0V, resistance R40, resistance R41, resistance R42 carries out dividing potential drop to output voltage, voltage sensor gathers the voltage on resistance R42, the voltage sensor that circuit uses is current mode voltage sensor, resistance R44 obtains required voltage, this voltage and Setting signal UQG are through the part B by U3B op amp U3, resistance R43, resistance R45, resistance R46, resistance R47, resistance R48, the voltage that the voltage signal obtained after the P regulating control that resistance R49 forms obtains after the voltage follower that the part A U3A of op amp U3 forms is by resistance R37, resistance R38, resistance R39, diode D9, diode D6, diode D5 discharge and recharge network carries out discharge and recharge to electric capacity C8, electric capacity C8 obtains to determining voltage signal QG, the outside positive output end of dual-purpose machine is by resistance R40, resistance R41 and resistance R42 is connected in series to the outside negative output terminal of dual-purpose machine, voltage sensor U14 pin 1 is connected with resistance R42 junction with resistance R40, voltage sensor U14 pin 2 is connected with resistance R42 junction with resistance R41, voltage sensor U14 pin 3 and resistance R44 one end are connected to power supply 0V, voltage sensor U14 pin 4 is connected with the resistance R44 other end, voltage sensor U14 pin 4 is connected with op amp U2 pin 6, voltage sensor U14 pin 4 is connected with op amp U3 pin 6 by resistance R45, op amp U3 pin 6 is connected with op amp U3 pin 7 by resistance R43, op amp U3 pin 6 is connected to power supply 0V by resistance R46, op amp U3 pin 6 is connected to+5V power supply by resistance R48, op amp U3 pin 5 is connected to power supply 0V by resistance R49, op amp U3 pin 5 is connected with op amp U3 pin 8 by resistance R48, op amp U3 pin 7 is connected with op amp U3 pin 3, op amp U3 pin 1 is connected with op amp U3 pin 2, it is in parallel with resistance R38 after resistance R39 connects with diode D9, diode D9 negative electrode is connected with op amp U3 pin 1, the other end of resistance R39 is connected with electric capacity C8 positive pole, electric capacity C8 negative pole is connected to power supply 0V, resistance R37 connects with diode D6, the other end of resistance R37 is connected with electric capacity C8 positive pole, diode D6 negative electrode is connected with op amp U2 pin 1, diode D5 anode is connected with diode D6 anode, diode D5 negative electrode is connected with op amp U2 pin 7, resistance R51, diode D8 forms current protection indicating circuit, part A U2A and the resistance R50 of op amp U2 form hysteresis loop comparator, when anti-phase input terminal voltage is greater than in-phase input end voltage, during the voltage namely obtained on R34, mouth is active potential, when anti-phase input terminal voltage is less than in-phase input end voltage, mouth is high potential, the protection value of outgoing current is changed by adjusting resistance R34 value, resistance R34 pin 1 is connected to+5V power supply, resistance R34 pin 3 is connected to power supply 0V, resistance R34 pin 2 is connected with op amp U2 pin 3, op amp U2 pin 3 is connected with op amp U2 pin 1 by resistance R50, resistance R51 is connected with diode D8, diode D8 anode is connected to+5V power supply, the resistance R51 other end is connected with op amp U2 pin 1, resistance R36, diode D7 forms over voltage indicating circuit, part B U2B and the resistance R35 of op amp U2 form hysteresis loop comparator, when anti-phase input terminal voltage is greater than in-phase input end voltage, during the voltage namely obtained on R33, mouth is active potential, when anti-phase input terminal voltage is less than in-phase input end voltage, mouth is high potential, the protection value of output voltage is changed by adjusting resistance R33 value, resistance R33 pin 1 is connected to+5V power supply, resistance R33 pin 3 is connected to power supply 0V, resistance R33 pin 2 is connected with op amp U2 pin 5, op amp U2 pin 5 is connected with op amp U2 pin 7 by resistance R35, resistance R36 and diode D7, diode D7 negative electrode is connected with op amp U2 pin 7, the resistance R51 other end is connected to+5V power supply, the current sensor U11 of sample circuit (10) samples to high-frequency transformer primary side current, current sensor U12 samples to load current, voltage sensor U14 samples to on-load voltage, connector J3, resistance R56, optocoupler U5, resistance R59, resistance R60 forms temperature sampling circuit, obtain corresponding temperature signal and send into control chip U8, the pin 1 of optocoupler U5 by resistance R56 be connected to ' 12V power supply, the pin 2 of optocoupler U5 is connected with the pin 2 of binding post J3, the pin 1 of binding post J3 be connected to power supply ' 0V, the pin 4 of optocoupler U5 is connected to+5V power supply by resistance R59, the pin 3 of optocoupler U5 is connected to power supply 0V, one end of resistance R60 is connected with the pin 4 of optocoupler U5, one end of resistance R60 is connected with the pin 10 of control chip U8, programming port J1, resistance R53, control chip U8, electric capacity C2, electric capacity C3, crystal oscillator Y1 forms central controller (11), electric capacity C2, electric capacity C3, crystal oscillator Y1 forms clock circuit, for control chip U8 provides operating clock signals, one end of electric capacity C2 is connected with one end of crystal oscillator Y1, the other end of electric capacity C2 is connected to power supply 0V, one end of electric capacity C3 is connected with the other end of crystal oscillator Y1, the other end of electric capacity C3 is connected to power supply 0V, one end of crystal oscillator Y1 is connected with the pin 2 of control chip U8, the other end of crystal oscillator Y1 is connected with the pin 3 of control chip U8, the pin 1 of programming port J1 is connected with the pin 4 of control chip U8, the pin 2 of programming port J1 is connected to+5V power supply, the pin 3 of programming port J1 is connected to power supply 0V, the pin 4 of programming port J1 is connected with the pin 13 of control chip U8, the pin 5 of programming port J1 is connected with the pin 12 of control chip U8, commutation circuit (12) is by relay K 1, diode D3, inductance L 6, inductance L 7, aerotron Q5, resistance R65, connector J4, connector J5, connector J6 switches Setting signal, by resistance R64, optocoupler U7, resistance R66, diode D4, relay K 2, aerotron Q6, connector J7 switches main transformer, the pin 6 of control chip U8 is connected with one end of resistance R65, the other end of resistance R65 is connected with aerotron Q5 base stage, aerotron Q5 collecting electrode is connected with the anode of diode D3, the negative electrode of diode D3 is connected to+15V power supply by inductance L 6, the coil of relay K 1 is in parallel with diode D3, aerotron Q5 emitter is connected to power supply 0V by inductance L 7, the pin 1 of relay K 1 is connected with the pin 2 of binding post J4, the pin 4 of relay K 1 is connected with the pin 1 of binding post J4, the pin 2 of relay K 1 is connected with the pin 1 of binding post J5, the pin 5 of relay K 1 is connected with the pin 2 of binding post J5, the pin 3 of relay K 1 is connected with the pin 1 of binding post J6, the pin 6 of relay K 1 is connected with the pin 2 of binding post J6, the pin 7 of control chip U8 is connected with the pin 2 of optocoupler U7, the pin 1 of optocoupler U7 is connected to+5V power supply by resistance R64, the pin 3 of optocoupler U7 is connected to ' 12V power supply, the pin 4 of optocoupler U7 is connected to aerotron Q6 base stage by resistance R66, aerotron Q6 collecting electrode is connected with the anode of diode D3, the negative electrode of diode D3 is connected to ' 12V power supply, the coil of relay K 2 is in parallel with diode D4, aerotron Q6 emitter be connected to power supply ' 0V, the pin 4 of relay K 1 is connected to ' 12V power supply, the pin 6 of relay K 1 is connected with the pin 1 of binding post J7, the pin 2 of binding post J7 be connected to power supply ' 0V, connector J2, resistance R55, optocoupler U4, resistance R57, resistance R58 forms multi-functional conversion input circuit (13), obtain corresponding mode signal and send into control chip U8, the pin 1 of optocoupler U4 by resistance R55 be connected to ' 12V power supply, the pin 2 of optocoupler U4 is connected with the pin 2 of binding post J2, the pin 1 of binding post J2 be connected to power supply ' 0V, the pin 4 of optocoupler U4 is connected to+5V power supply by resistance R57, the pin 3 of optocoupler U4 is connected to power supply 0V, one end of resistance R58 is connected with the pin 4 of optocoupler U4, one end of resistance R58 is connected with the pin 11 of control chip U8.
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| CN201410149986.9A CN103935906B (en) | 2013-04-17 | 2014-04-15 | Multifunctional motor-driven-the hydraulic crane of power is made of generator set |
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| CN201310133539.X | 2013-04-17 | ||
| CN201310133539 | 2013-04-17 | ||
| CN201310133539X | 2013-04-17 | ||
| CN201410149986.9A CN103935906B (en) | 2013-04-17 | 2014-04-15 | Multifunctional motor-driven-the hydraulic crane of power is made of generator set |
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| CN201410149986.9A Active CN103935906B (en) | 2013-04-17 | 2014-04-15 | Multifunctional motor-driven-the hydraulic crane of power is made of generator set |
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| CN203877770U (en) * | 2013-04-17 | 2014-10-15 | 栾亚伦 | Multifunctional electro-hydraulic crane with generator set as power |
| CN106044581A (en) * | 2016-06-29 | 2016-10-26 | 张华海 | Simple hoisting machine for transporting agriculture products |
| CN109896429B (en) * | 2019-01-31 | 2020-08-21 | 武汉船用机械有限责任公司 | Crane control circuit and crane |
| RU201082U1 (en) * | 2020-07-13 | 2020-11-26 | Открытое акционерное общество "Челябинский механический завод" | SELF-PROPELLED CRANE |
| RU2746393C1 (en) * | 2020-07-13 | 2021-04-13 | Открытое акционерное общество "Челябинский механический завод" | Self-propelled crane (options) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2704500Y (en) * | 2004-07-08 | 2005-06-15 | 栾亚伦 | Engineering vehicle driven by generator set rectification |
| CN201809080U (en) * | 2010-10-13 | 2011-04-27 | 李其明 | Electric hoist using tridrive |
| CN202465124U (en) * | 2011-11-29 | 2012-10-03 | 李其明 | Electric hoist |
| CN203877770U (en) * | 2013-04-17 | 2014-10-15 | 栾亚伦 | Multifunctional electro-hydraulic crane with generator set as power |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100585881B1 (en) * | 2004-07-16 | 2006-06-07 | 대호 (주) | Detachable crane for vehicle and detachable method thereof |
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2014
- 2014-04-15 CN CN201420181142.8U patent/CN203877770U/en not_active Expired - Fee Related
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2704500Y (en) * | 2004-07-08 | 2005-06-15 | 栾亚伦 | Engineering vehicle driven by generator set rectification |
| CN201809080U (en) * | 2010-10-13 | 2011-04-27 | 李其明 | Electric hoist using tridrive |
| CN202465124U (en) * | 2011-11-29 | 2012-10-03 | 李其明 | Electric hoist |
| CN203877770U (en) * | 2013-04-17 | 2014-10-15 | 栾亚伦 | Multifunctional electro-hydraulic crane with generator set as power |
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| CN103935906A (en) | 2014-07-23 |
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