CN109606135A - A kind of energy conservation and environmental protection construction machinery and its working method - Google Patents
A kind of energy conservation and environmental protection construction machinery and its working method Download PDFInfo
- Publication number
- CN109606135A CN109606135A CN201910081130.5A CN201910081130A CN109606135A CN 109606135 A CN109606135 A CN 109606135A CN 201910081130 A CN201910081130 A CN 201910081130A CN 109606135 A CN109606135 A CN 109606135A
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- Prior art keywords
- lithium battery
- control system
- environmental protection
- charge
- energy conservation
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/02—Dynamic electric resistor braking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/40—Working vehicles
-
- 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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention provides a kind of energy conservation and environmental protection construction machinery and its working method, the energy conservation and environmental protection construction machinery includes gantry body and dynamical system, dynamical system is gantry body output power, dynamical system includes generating set, generating set includes generator, fairing, generator is electrically connected with fairing, the dynamical system further includes lithium battery group, lithium battery group includes lithium battery, increasing apparatus, charge-discharge controller, generating set is lithium battery charging by increasing apparatus, and charge-discharge controller controls lithium battery and executes charging operations or discharge operation.This method includes starting generator by PLC control system for lithium battery charging, after charging, is discharged by PLC control system control lithium battery.The energy conservation and environmental protection construction machinery uses lithium battery to provide power for complete machine, and use cost is greatly reduced, while exhaust gas discharge and noise pollution greatly reduce, and use very environmentally friendly.
Description
Technical field
The present invention relates to technical field of engineering machinery, it is specifically related to a kind of energy conservation and environmental protection construction machinery and its work side
Method.
Background technique
The construction machineries such as crawler crane, dynamic compaction machinery are mainly used in outfield lifting, compacting etc., and groundwork mechanism is
Lifting mechanism and descending mechanism, walking mechanism are less.Since outfield is far from power supply, currently, crawler crane, dynamic compaction machinery etc. are constructed
The mechanical overwhelming majority is used as power source using high-power diesel engine (about 200kW or more), is realized and is made using hydraulic actuator
Industry movement can cause greatly to pollute along with the discharge of motor exhaust, noise and hydraulic leak to environment；In addition, with
Fuel price constantly rises, and the demand for seeking alternative energy source is more more and more urgent.
Such as application No. is the Chinese invention patent application of CN200620167348 disclose it is a kind of using motor come
The construction machinery of operation is driven, which connects power supply by a cable drum using motor, but this mode can only be used
In the place close to mains supply, and construction machinery master occasion majority to be used is very remote from power supply, is connected by cable
The mode of power supply is inconvenient.
Summary of the invention
The first object of the present invention is to provide a kind of energy conservation and environmental protection construction machinery that can greatly reduce environmental pollution.
The second object of the present invention is to provide a kind of work side of energy conservation and environmental protection construction machinery that can be realized automatic charging
Method.
In order to realize the first object of the present invention, energy conservation and environmental protection construction machinery provided by the invention include gantry body and
Dynamical system, dynamical system are gantry body output power, and dynamical system includes generating set, and generating set includes power generation
Machine, fairing, generator are electrically connected with fairing, which further includes lithium battery group, and lithium battery group includes lithium electricity
Pond, increasing apparatus, charge-discharge controller, generating set are lithium battery charging, charge-discharge controller control by increasing apparatus
Lithium battery processed executes charging operations or discharge operation.
In the above scheme, lithium battery provides power for gantry body, and driving gantry body carries out lifting operation.When
When generator is that lithium battery charges, the electric current of generator output is alternating current, and the alternating current of generator output first passes through
Fairing is converted into DC current.Then current value can reduce when DC current passes through increasing apparatus, thus can reduce
The loss of electric energy, the charge efficiency that generator charges to lithium battery are also higher.When lithium battery interior not enough power supply, charge and discharge
Control device controls lithium battery and executes charging operations, and generator starts as lithium battery charging；When lithium battery interior electricity abundance,
Charge-discharge controller controls lithium battery and executes discharge operation, and lithium battery starts as gantry body output power, crane sheet
Body starts to carry out lifting operation.
Preferably, energy conservation and environmental protection construction machinery further includes control system, and control system includes monitor, PLC control system,
PLC control system can detecte the electricity in lithium battery, and electricity can be shown by monitor.
Further embodiment is that PLC control system transmits charging signals and discharge signal to charge-discharge controller.
In the above scheme, PLC control system can detecte the electricity in lithium battery, and the electricity that will test passes through prison
Visual organ is shown.User can observe the electricity stored in lithium battery at any time by monitor.For lithium electricity in PLC control system
Pond charge value is preset with a designated value, when PLC control system detects that electricity is lower than the designated value in lithium battery, PLC control
For system processed to charge-discharge controller transmission charging signals and to generator transmission enabling signal, charge-discharge controller controls lithium
Battery carries out charging operations, and generator starts to charge for lithium battery.When the energy conservation and environmental protection construction machinery needs work,
PLC control system transmits discharge signal to charge and discharge device, and lithium battery starts as gantry body power supply.
Further scheme is that control system includes electric-control system, and electric-control system includes braking resistor, raising frequency conversion dress
It sets, luffing converter plant, walking converter plant, braking resistor, raising converter plant, luffing converter plant, walking converter plant
Between connection relationship be to be connected in parallel.
Further scheme is, is internally provided with executing agency in gantry body, executing agency include hoisting motor,
The revolving speed of hoisting motor is adjusted in luffing motor, movable motor, raising converter plant, and luffing motor is adjusted in luffing converter plant
Revolving speed, walking converter plant be adjusted movable motor revolving speed.
In the above scheme, when needing to adjust the speed of weight lifting, PLC control system is transmitted to raising converter plant
First adjustment signal, raising converter plant adjust the revolving speed of hoisting motor；When needing to adjust the speed that cantilever crane lifts, PLC control
System processed transmits the second adjustment signal to luffing converter plant, and luffing converter plant adjusts the revolving speed of luffing motor；When needing to adjust
When saving the speed of travel of crawler crane, PLC control system transmits third adjustment signal to walking converter plant, frequency conversion of walking
The revolving speed of device adjusting movable motor.
Further scheme is that gantry body includes boom hoisting, boom system, luffing device, jack up unit, row
Walking apparatus, boom hoisting, boom system, luffing device, jack up unit are respectively positioned on the top of running gear, and luffing device is controllable
The lifting of boom system, jack up unit can control the lifting of boom hoisting.
In order to realize the second object of the present invention, a kind of working method packet of energy conservation and environmental protection construction machinery provided by the invention
Charge step is included, charge step includes the following steps:
Step S1:PLC control system is to generator transmission enabling signal；
Step S2: charge-discharge controller transmits charging signals to lithium battery；
Step S3: generator transfers current to fairing；
Step S4: fairing transfers current to increasing apparatus；
Step S5: increasing apparatus transfers current to lithium battery；
In the above scheme, when PLC control system detects that electricity is lower than designated value in lithium battery, just start generator
Automatically it charges for lithium battery, to realize the automatic charging to lithium battery.
Preferably, the working method of the energy conservation and environmental protection construction machinery includes discharge step, and discharge step includes the following steps:
Step S11:PLC control system transmits discharge signal to charge-discharge controller；
Step S12: lithium battery is executing agency's power supply, drives each motor rotation in executing agency；
Step S13: electric-control system transmits adjustment signal, each motor speed in adjustment actuating mechanism to executing agency.
In the above scheme, it is provided with and starts switch in the driver's cabin of construction machinery.When need the construction machinery carry out
When construction operation, be on switch, PLC control system transmits discharge signal to charge-discharge controller, lithium battery start for
Vehicle provides power, which starts to carry out construction operation.
Further embodiment is that during executing step S12, hoisting motor can generate induced current, induced current
It can charge for lithium battery, charging process includes the following steps:
Step S121: weight decline drives the rotation of hoisting motor inner rotator, and rotor cutting magnetic line generates induction electric
Gesture, to generate induced current；
Step S122:PLC control system detects the electricity in lithium battery, judges whether the electricity of lithium battery reaches full value,
If it is not, step S123 is executed, if so, executing step S124；
Step S123:PLC control system transmits charging signals to charge-discharge controller, and induced current is filled for lithium battery
Electricity；
Step S124:PLC control system controls electric-control system and connects braking resistor, and induced current flows to braking resistor.
In the above scheme, when weight declines, motor rotor rotation is driven, rotor cutting magnetic line generates induced electricity
Kinetic potential, to generate induced current.Electricity in the lithium battery of PLC control system detection at this time, when electric quantity of lithium battery does not reach
When full value, PLC control system starts the charge function of charge-discharge controller, and induced current flows to lithium battery, fills for lithium battery
Electricity；When a height of full value of electric quantity of lithium battery, PLC control system controls electric-control system and connects braking resistor, induced current flow direction system
Dynamic resistance, braking resistor generate heat for faradic power consumption, prevent induced current from burning out circuit, play protection circuit
Effect.
Detailed description of the invention
Fig. 1 is the first view of crawler crane of the embodiment of the present invention.
Fig. 2 is the second view of crawler crane of the embodiment of the present invention.
Fig. 3 is dynamical system of the embodiment of the present invention, control system and the functional block diagram of executing agency.
Fig. 4 is the flow chart of charging process of the embodiment of the present invention.
Fig. 5 is the flow chart of the course of work of the embodiment of the present invention.
Fig. 6 is the flow chart that induced current of the embodiment of the present invention is lithium battery charging.
The invention will be further described with reference to the accompanying drawings and embodiments.
Specific embodiment
Referring to Fig. 1 and Fig. 2, energy conservation and environmental protection construction machinery provided in an embodiment of the present invention is crawler crane.The crawler belt
Formula crane includes gantry body and dynamical system, and the inside of gantry body is arranged in dynamical system.Gantry body packet
Include boom hoisting 1, boom system 2, luffing device 3, jack up unit 4, running gear 5, boom hoisting 1, boom system 2, luffing
Device 3, jack up unit 4 are respectively positioned on the top of running gear 5, and luffing device 3 can control the lifting of boom system 2, jack up unit 4
Control can boom hoisting 1 lifting.Dynamical system includes generating set 6, lithium battery group 7.The crawler crane further includes control
System processed, set-up of control system is in the inside of gantry body.Control system includes monitor 8, PLC control system 9 and automatically controlled
System 10.
Referring to Fig. 3, generating set 6 includes generator 61, fairing 62, and generator 61 is electrically connected with fairing 62.
Lithium battery group 7 includes lithium battery 71, increasing apparatus 72, charge-discharge controller 73.Electric-control system 10 further includes braking resistor
101, raising converter plant 102, luffing converter plant 103, walking converter plant 104.Braking resistor 101, raising converter plant
102, the connection relationship between luffing converter plant 103, walking converter plant 104 is to be connected in parallel.Executing agency 11 includes
Hoisting motor 111, luffing motor 112, movable motor 113.
In the present embodiment, generator 61 is diesel-driven generator.PLC control system 9 can detecte the electricity in lithium battery 71
Amount, and the electricity that will test is shown on monitor 8.One is preset with for 71 charge value of lithium battery in PLC control system 9
A designated value.When PLC control system 9 detects in lithium battery 71 electricity lower than the designated value, PLC control system 9 is to charge and discharge
Controller for electric consumption 73 transmits charging signals and to 61 transmission start signal of generator.Generator 61 is exported to fairing 62 and is exchanged
AC conversion is direct current by electricity, fairing 62, and fairing 62 is by DC power transmission to increasing apparatus 72, increasing apparatus
72 can greatly reduce the size of current of direct current, to reduce the loss of electric energy, improve the charge efficiency of generator.
When the environmental protection construction machinery needs work, PLC control system 9 transmits electric discharge letter to charge-discharge controller 73
Number, lithium battery 71 starts as the power supply of executing agency 11, the rotation drive work of jack up unit 4 of hoisting motor 111, luffing motor 112
Rotation drives luffing device 3 to work, and the rotation of movable motor 113 drives running gear 5 to work.When the speed for needing to adjust weight lifting
When spending, PLC control system 9 transmits the first adjustment signal to raising converter plant 102, and raising converter plant 102 adjusts raising electricity
The revolving speed of machine 111；When needing to adjust the speed that cantilever crane lifts, PLC control system 9 transmits second to luffing converter plant 103
Adjustment signal, luffing converter plant 103 adjust the revolving speed of luffing motor 112；When the walking speed for needing to adjust crawler crane
When spending, PLC control system 9 transmits third adjustment signal to walking converter plant 104, and walking converter plant 104 adjusts walking electricity
The revolving speed of machine 113.
In the present embodiment, the drive form which uses is pure electric vehicle driving, i.e., using lithium electricity
Pond is powered for complete machine, compared with traditional construction machinery using diesel engine powers, considerably reduces nuisance
The discharge of matter reduces the noise pollution of generation.When lithium battery 71 breaks down, generator 61 can allow complete machine at a slow speed (just
The 10% of the normal speed of service) it runs to home.
Referring to fig. 4, charging process provided in an embodiment of the present invention includes the following steps:
Firstly, executing step S1, PLC control system 9 is to 61 transmission start signal of generator；Then, step S2 is executed, is filled
Discharge control device 73 transmits charging signals to lithium battery 71, then, executes step S3, generator 61 transfers current to rectification
Device 62.Then, step S4 is executed, fairing 62 transfers current to increasing apparatus 72, then executes step S5, increasing apparatus
72 transfer current to lithium battery 71.
In the present embodiment, when PLC control system 9 detects that electricity is lower than designated value in lithium battery 71, just starting is sent out
Motor 61 charges automatically for lithium battery 71, to realize the automatic charging to lithium battery 71.
Referring to Fig. 5, the course of work provided in an embodiment of the present invention includes the following steps:
Firstly, executing step S11, PLC control system 9 transmits discharge signal to charge-discharge controller 73；Then step
S12, lithium battery 71 are the power supply of executing agency 11, drive each motor rotation in executing agency 11；Then step S13 is executed, it is automatically controlled
System 10 transmits adjustment signal, each motor speed in adjustment actuating mechanism 11 to executing agency 11.
In the above scheme, it is provided with and starts switch in the driver's cabin of construction machinery.When need the construction machinery carry out
When construction operation, it is on switch, PLC control system 9 transmits discharge signal to charge-discharge controller 73, and lithium battery 71 is opened
Begin to provide power for vehicle, which starts to carry out construction operation.
Referring to Fig. 6, induced current is that the process that lithium battery 71 charges includes the following steps:
Step S121 is first carried out, weight decline drives the rotation of 111 inner rotator of hoisting motor, and rotor cutting magnetic line produces
Raw induced electromotive force, to generate induced current；Then step S122 is executed, PLC control system 9 detects the electricity in lithium battery 71
Amount, judges whether the electricity of lithium battery 71 reaches full value, if it is not, step S123 is executed, if so, executing step S124.
In step S123, PLC control system 9 transmits charging signals to charge-discharge controller 73, and induced current is lithium electricity
It charges in pond 71.
In step S124, PLC control system 9 controls electric-control system 10 and connects braking resistor, induced current flow direction braking electricity
Resistance 101.
In the present embodiment, when weight declines, the rotation of 111 rotor of hoisting motor is driven, rotor cutting magnetic line generates
Induced electromotive force, to generate induced current in circuit.PLC control system 9 detects the electricity of lithium battery 71 at this time.When lithium electricity
When 71 electricity of pond does not reach full value, PLC control system 9 transmits charging signals, charge and discharge control to charge-discharge controller 73
Device 73 controls lithium battery 71 and carries out charging operations, and induced current flows to lithium battery 71 at this time, charges for lithium battery 71；When lithium electricity
When 71 electricity of pond reaches full value, PLC control system 9 controls electric-control system 10 and connects braking resistor 101, and induced current flows at this time
Braking resistor 101, braking resistor 101 generate heat for faradic power consumption, prevent induced current from burning out circuit, play
Protect the effect of circuit.
Although showing in conjunction with the present embodiment and preferred embodiment and describing the present invention, those skilled in the art should
Understand, is not departing from the spirit and scope of the present invention defined by the appended claims, in the form and details
It is protection scope of the present invention to be made a variety of changes to the present invention.
Claims (9)
1. a kind of energy conservation and environmental protection construction machinery, including gantry body and dynamical system, the dynamical system is the crane
Ontology output power, the dynamical system include generating set, and the generating set includes generator and fairing, described
Generator is electrically connected with the fairing, it is characterised in that:
The dynamical system further includes lithium battery group, and the lithium battery group includes lithium battery, increasing apparatus, charge and discharge control dress
It sets, the generating set is lithium battery charging by the increasing apparatus, and the charge-discharge controller controls lithium battery
Execute charging operations or discharge operation.
2. energy conservation and environmental protection construction machinery according to claim 1, it is characterised in that:
The energy conservation and environmental protection construction machinery further includes control system, and the control system includes monitor, PLC control system, institute
It states PLC control system and receives the information of the electricity and display for detecting the electricity in the lithium battery, the monitor.
3. energy conservation and environmental protection construction machinery according to claim 2, it is characterised in that:
The PLC control system also transmits charging signals and discharge signal to the charge-discharge controller.
4. energy conservation and environmental protection construction machinery according to claim 2, it is characterised in that:
The control system includes electric-control system, and the electric-control system includes braking resistor, raising converter plant, luffing frequency conversion dress
It sets, converter plant of walking, the braking resistor, the raising converter plant, the luffing converter plant, walking frequency conversion dress
It sets and equal is electrically connected with the charge-discharge controller.
5. energy conservation and environmental protection construction machinery according to claim 4, it is characterised in that:
It is internally provided with executing agency in the gantry body, the executing agency includes hoisting motor, luffing motor, walking
Motor, the raising converter plant is to the lifting motor output signal and adjusts the revolving speed of the hoisting motor, the luffing
Converter plant is to the luffing motor output signal and adjusts the revolving speed of the luffing motor, and the walking converter plant is to described
Movable motor output signal and the revolving speed for adjusting the movable motor.
6. energy conservation and environmental protection construction machinery according to any one of claims 1 to 5, it is characterised in that:
The gantry body includes boom hoisting, boom system, luffing device, jack up unit, running gear, described lifting
It sets, the boom system, the luffing device, the jack up unit are respectively positioned on the top of the running gear, the luffing dress
The lifting that can control the boom system is set, the jack up unit can control the lifting of the boom hoisting.
7. a kind of working method of energy conservation and environmental protection construction machinery, using the energy conservation and environmental protection construction machine of any one of such as claim 1-6
Tool, which is characterized in that the working method includes charge step, and the charge step includes the following steps:
PLC control system is to generator transmission enabling signal；
Charge-discharge controller transmits charging signals to the lithium battery；
The generator transfers current to fairing；
The fairing transfers current to increasing apparatus；
The increasing apparatus transfers current to the lithium battery.
8. working method according to claim 7, which is characterized in that the working method includes executing to put after charging
Electric step, the discharge step include the following steps:
The PLC control system transmits discharge signal to the charge-discharge controller；
The lithium battery is executing agency's power supply, drives each motor rotation in the executing agency；
Electric-control system transmits adjustment signal to the executing agency, adjusts each motor speed in the executing agency.
9. working method according to claim 8, which is characterized in that when the lithium battery is that executing agency powers, raising
Motor generates induced current, and induced current is lithium battery charging, and charging process includes the following steps:
Weight decline drives the hoisting motor inner rotator rotation, and the rotor cutting magnetic line generates induced electromotive force, from
And generate induced current；
The PLC control system detects the electricity in the lithium battery, judges whether the electricity of the lithium battery reaches full value, if
No, the PLC control system transmits charging signals to the charge-discharge controller, and the induced current is that the lithium battery fills
Electricity, if so, PLC control system control electric-control system connects braking resistor, induced current flows to braking resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910081130.5A CN109606135A (en) | 2019-01-28 | 2019-01-28 | A kind of energy conservation and environmental protection construction machinery and its working method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910081130.5A CN109606135A (en) | 2019-01-28 | 2019-01-28 | A kind of energy conservation and environmental protection construction machinery and its working method |
Publications (1)
| Publication Number | Publication Date |
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| CN109606135A true CN109606135A (en) | 2019-04-12 |
Family
ID=66018055
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910081130.5A Pending CN109606135A (en) | 2019-01-28 | 2019-01-28 | A kind of energy conservation and environmental protection construction machinery and its working method |
Country Status (1)
| Country | Link |
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| CN (1) | CN109606135A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113548585A (en) * | 2021-07-30 | 2021-10-26 | 三一汽车起重机械有限公司 | Integrated control system and method for automobile crane, electronic equipment and storage medium |
| CN113937846A (en) * | 2021-09-17 | 2022-01-14 | 三一汽车起重机械有限公司 | External power grid access system of operation machine and operation machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113937846B (en) * | 2021-09-17 | 2024-03-12 | 三一汽车起重机械有限公司 | External power grid access system of working machine and working machine |
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