CN206551895U - A kind of electronic engineering machinery of hybrid drive-type - Google Patents
A kind of electronic engineering machinery of hybrid drive-type Download PDFInfo
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- CN206551895U CN206551895U CN201720275959.5U CN201720275959U CN206551895U CN 206551895 U CN206551895 U CN 206551895U CN 201720275959 U CN201720275959 U CN 201720275959U CN 206551895 U CN206551895 U CN 206551895U
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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
- Y02T10/62—Hybrid vehicles
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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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
A kind of electronic engineering machinery of hybrid drive-type, including removable power supply car and engineering machinery, battery, output power converting means, power control and charging device are provided with removable power supply car, motor, the first hydraulic pressure pump group, engine, the second hydraulic pressure pump group, fluid power system, fuel tank and the first generator are provided with engineering machinery, the electric power of motor is provided by removable power supply car.The utility model ensure that the driving of medium-and-large-sized engineering machinery put-put also can normal work, using hybrid power, whole system is set to reach peak efficiency, external power supply car can actively utilize grid power, the specification of engine is reduced, that is, reduces waste gas discharge, fuel cost and ambient noise.Complicated, fragile battery and electric control system is placed to working environment and preferably powered on car, avoid the potential faults in engineering machinery, even if the power system of power supply car is broken down, as long as changing a power supply car, the normal work of engineering machinery is not interfered with yet.
Description
Technical field
The utility model belongs to engineering mechanical device technical field, is related to power transmission technology, engineering machinery technology, communication
Technology, control technology is a kind of electronic engineering machinery of hybrid drive-type specifically.
Background technology
Medium-and-large-sized engineering machinery, such as excavator, crane, weigh tens tons and arrive tons up to a hundred, engine power is in 100KW
To thousands of KW, but the actually real limited operating efficiency of these machineries is less than 20%, and most of idle work is all consumed in hair
In motivation and hydraulic system, the ideal scheme for improving engineering machinery efficiency is that engine is changed to motor.
But, if power type engineering machinery is directly powered by power network, and the ripple of so big machinery often power consumption
Dynamic very big, the capacity requirement to power network is very high, and because machinery be unable to do without the cable power supply attracted from power network, its activity
Scope, by great limitation, is not the scheme that can generally use.
Also there is the electronic scheme of mobile power supply type powered by external power supply car for engineering machinery, but for heavy construction machine
For tool, required power is too big, it is necessary to huge power supply car loads substantial amounts of battery to power, and power is big needs
It is powered with very thick cable, so being also not suitable for.
Also combination drive scheme, i.e., install engine and battery-electric system, engine driving liquid in engineering machinery
Pressure system, while driving the dual-purpose motor of a generator-motor, is connected in a battery pack.When hydraulic system requirement
Little energy when, engine driven generators generate electricity as battery charging, when hydraulic system load is big in turn, just with battery
Send motor and carry out assisted engine drive hydraulic system principle.Such hybrid system can effectively improve engineering machinery really
Efficiency, but actually because the condition of work environment in engineering machinery is very harsh, complicated battery and power system peace
Dress under such circumstances, can increase substantially failure risk, certainly to the raising of element function requirement, also imply that cost
Improve.More exacting terms is that this kind of excavator usually needs work more than 20 hours daily, and the continuity to machinery requires non-
Chang Gao, such purposes the technical difficulty and cost difficulty of mechanically carrying hybrid drive system all than larger, therefore so
Scheme be also not suitable for.
Utility model content
The utility model will solve problem of the prior art, and the electronic engineering machinery of a kind of hybrid drive-type visualized can be with
Overcome above mentioned problem there is provided one kind on the premise of engineering machinery operating efficiency is not influenceed well, reduce engine and confession
Electric car dimensions, reduces the solution of failure.
To reach above-mentioned purpose, the technical solution adopted in the utility model is as follows：
A kind of electronic engineering machinery of hybrid drive-type, including removable power supply car and engineering machinery, the removable power supply
Battery, output power converting means, power control and charging device are provided with car, in the engineering machinery provided with motor,
First hydraulic pressure pump group, engine, the second hydraulic pressure pump group, fluid power system and fuel tank, the electric power of motor is by removable power supply car
There is provided；Motor drives the first hydraulic pressure pump group, and the pressure oil in fuel tank is supplied to hydraulic pressure to drive by the hydraulic pressure pump group of engine driving second
Oil cylinder or hydraulic motor in dynamic system；The first generator by driven by engine, the first hair are additionally provided with the engineering machinery
The electric power that motor is produced is transmitted to the charging device of removable power supply car by electric power output control device, becomes to fill for battery
The electric power of electricity.The power resources of engineering machinery are based on engine, supplemented by motor, when mechanical load is small, and engineering machinery can be with
Work independently and provide electric power without car of powering, the unnecessary power of engine can be for driving the first electrical power generators
The battery charging of removable power supply car, when mechanical load increases, by output power converting means by the power transmission of battery
To motor, motor is set to enter working condition, if engineering machinery is in high capacity working condition for a long time, on-board engine does not have
When surplus charges for the battery of power supply car, power supply car can be charged by outside electric power network, and power network can be untied and work too far
Charging is gone in the connection of journey machinery, the place that car of powering is moved into power network, coordinates engineering while changing and separately changing a power supply car
Machine work.
It is preferred that, communication device is designed with the removable power supply car and the engineering machinery, for believing between the two
Number transmission, signal includes the instruction that the information about power and engineering machinery of battery on removable power supply car are sent, may move and supply
Communication device on electric car can receive the instruction that communication device is transmitted from engineering machinery, and control electricity by power control
Whether power output transform device exports the electric power of battery and the size of output power as needed.
It is preferred that, hydraulic-electric converting means is set up in the engineering machinery, is throttled passing through in usual hydraulic system
And the hydraulic energy of heat energy is converted into, it is changed into electric energy, the battery for being transformed to power on car by electric power output apparatus charges.
It is preferred that, the hydraulic-electric converting means includes reversal valve, hydraulic motor, the second generator and control device,
Reversal valve is installed on on the oil cylinder moved up and down or the pressure oil return line of hydraulic motor, passes through control device, commutation
Valve changes return line, pressure oil is flowed into fuel tank again by hydraulic motor, and hydraulic motor drives the second electrical power generators, produces
Electric power by electric power output control device transmit to it is removable power supply car charging device, become can for battery charge electricity
Power.The potential energy of the pressure oil in the oil cylinder or hydraulic motor of eminence, hydraulic pressure is passed through in pressure oil backflow dropping process
Motor and generator are converted into electric energy, and are the battery charging of removable power supply car, so as to reclaim what a part was lost originally
Energy.
It is preferred that, the engineering machinery realizes the working condition and working strength to motor and engine by operation handle
Control.When the operation handle of engineering machinery is completely in neutral position, and engine the second hydraulic pressure pump group for being driven goes out
The communication device that mouth pressure is less than in designated value, engineering machinery notifies removable car of powering to stop output power converting means automatically
Transmission of electricity, and leave the motor off work；When thering is any one handle to leave neutral position in the operation handle of engineering machinery and reach
When more than to certain operational ton, communication device notifies power supply car to start the transmission of electricity of output power converting means, and allows motor to rotate
Get up, the velocity of rotation of motor is directly proportional with the operational ton of operation handle.
It is preferred that, the operation handle is provided with acceleration button.Handle aperture reaches after maximum that motor speed keeps one
Fixed, when accelerating button to be pinned, output power converting means can continue motor speed to improve a certain amount, and play wink
Between the effect that accelerates.
A kind of method for calculating generator optimum total power, works for calculating the first generator in engine peak efficiency
When optimum total power, the computational methods comprise the following steps：
S1, the rotating speed for controlling engine are starting with rotating speed Ni during engine combustion efficiency highest can be allowed to be consistent
When machine dispatches from the factory, the parameters of engine are all indicated on specification, wherein rotating speed power when just including efficiency of combustion highest；
The moment of torsion that S2, the second hydraulic pressure pump group of calculating are consumed, i.e., the torsion applied in the drive shaft of the second hydraulic pressure pump group
Square Tp, calculation formula is：
Tp=PS2*q/Ka；
Wherein, PS2For the outlet pressure of the second hydraulic pressure pump group；
Q is pumpage, is calculated according to the operational ton of operation handle and pumpage control logic；
Ka is the mechanical efficiency of the second hydraulic pressure pump group；
S3, the peak torque Te that is allowed of the first generator input shaft is calculated, calculation formula is：
Te=Ti-Tp= Ti- PS2*q/Ka；
Wherein, torque T i when Ti is rotating speed Ni of the engine under peak efficiency work；
S4, the peak torque Te allowed according to the first generator input shaft can calculate the optimal hair of the first generator
Electricity.
As long as so to ensure the input shaft torque of optimum total power control generator of generator as close as appearance
Perhaps peak torque Te just can be with.And the working condition of engine remains at the state of optimal efficacy, and with machine
The size of tool load adjusts the size of the first generator power output at any time, and the loss of energy is reduced to greatest extent.
The beneficial effects of the utility model are：It ensure that medium-and-large-sized engineering machinery can also be kept just using put-put
Often work.Using hybrid power, whole system is set to reach peak efficiency, external power supply car can actively utilize grid power, subtract
The specification of small engine and the size of power supply car, that is, reduce waste gas discharge, fuel cost and ambient noise.Meanwhile, complexity
And fragile battery and electric control system is placed to working environment and preferably powered on car, it is to avoid these structures are arranged on work
The potential faults of journey mechanically, even if the power system of power supply car is broken down, also only need to change a power supply car, it is possible to after
Continuous work, does not interfere with the normal work of engineering machinery.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is dynamical system schematic diagram of the present utility model.
In figure：1st, it may move power supply car；1.1st, battery；1.2nd, output power converting means；1.3rd, power control；
1.4th, charging device；2nd, engineering machinery；2.1st, motor；2.2nd, the first hydraulic pressure pump group；2.3rd, engine；2.4th, the second hydraulic pump
Group；2.5th, fluid power system；2.5.1, oil cylinder or hydraulic motor；2.6th, fuel tank；2.7th, the first generator；2.8th, electric power output
Control device；2.9th, hydraulic-electric converting means；2.9.1, reversal valve；2.9.2, hydraulic motor；2.9.3, the second generator；
2.9.4, control device；2.10, operation handle；2.10.1 button, is accelerated.
Embodiment
The utility model is further described below by embodiment and accompanying drawing.
Embodiment is：As depicted in figs. 1 and 2, the electronic engineering machinery of a kind of hybrid drive-type, including removable power supply car
1 and engineering machinery 2, may move in power supply car 1 provided with battery 1.1, output power converting means 1.2, power control 1.3 and
In charging device 1.4, engineering machinery 2 provided with motor 2.1, the first hydraulic pressure pump group 2.2, engine 2.3, the second hydraulic pressure pump group 2.4,
Fluid power system 2.5, the generator 2.7 of fuel tank 2.6 and first, the electric power of motor 2.1 are provided by removable power supply car 1；Motor
2.1 the first hydraulic pressure pump groups 2.2 of driving, engine 2.3 drives the second hydraulic pressure pump group 2.4, the pressure oil in fuel tank 2.6 is supplied to
Oil cylinder or hydraulic motor 2.5.1 in fluid power system 2.5；Engine 2.3 drives the first generator 2.7, the electric power of generation
Transmitted by electric power output control device 2.8 to the charging device 1.4 of removable power supply car 1, become what can be charged for battery 1.1
Electric power.
Wherein, it may move in power supply car 1 and engineering machinery 2 and be designed with communication device 3, the biography for signal between the two
It is defeated.
In addition, hydraulic-electric converting means 2.9 is provided with engineering machinery 2, including reversal valve 2.9.1, hydraulic motor
2.9.2, the second generator 2.9.3 and control device 2.9.4, reversal valve 2.9.1 are installed on the oil cylinder or liquid moved up and down
On pressure motor 2.5.1 pressure oil return line, change return line by control device 2.9.4, reversal valve 2.9.1, make pressure
Power oil flows into fuel tank 2.6 again by hydraulic motor 2.9.2, and hydraulic motor 2.9.2 drives the second generator 2.9.3 to generate electricity, and produces
Electric power by electric power output control device 2.8 transmit to it is removable power supply car 1 charging device 1.4, it can be battery 1.1 to become
The electric power of charging.
Engineering machinery 2 realizes the working condition and working strength to motor 2.1 and engine 2.3 by operation handle 2.10
Control.Acceleration button 2.10.1 in operation handle 2.10 can increase the electric power of output power converting means output, so as to increase
Plus motor speed, acceleration function is played, when feeling not enough service speed or not enough strength for operator.
The electronic engineering machinery of a kind of hybrid drive-type in accordance with the above, and draw a kind of generator that calculates and most preferably generate electricity
The method of amount, for calculating optimum total power of first generator 2.7 when the peak efficiency of engine 2.3 works, computational methods
Comprise the following steps：
S1, the rotating speed of control engine 2.3 are with that can allow rotating speed Ni during 2.3 efficiency of combustion highest of engine to be consistent；
The moment of torsion that S2, the second hydraulic pressure pump group 2.4 of calculating are consumed, i.e., applied in the drive shaft of the second hydraulic pressure pump group 2.4
Plus torque T p, calculation formula is：
Tp=PS2*q/Ka；
Wherein, PS2For the outlet pressure of the second hydraulic pressure pump group 2.4；
Q is pumpage, is calculated according to the operational ton of operation handle 2.10 and pumpage control logic；
Ka is the mechanical efficiency of the second hydraulic pressure pump group 2.4；
S3, the peak torque Te that is allowed of the input shaft of the first generator 2.7 is calculated, calculation formula is：
Te=Ti-Tp= Ti- PS2*q/Ka；
Wherein, torque T i when Ti is rotating speed Ni of the engine 2.3 under peak efficiency work；
S4, the peak torque Te allowed according to the input shaft of the first generator 2.7 can calculate the first generator 2.7
Optimum total power.
Working method is：Power is provided separately by engine 2.3, or is provided jointly by engine 2.3 and motor 2.1, former
Because being that general engine 2.3 should not frequently be started stopping, and motor 2.1 is not minded then, so according to engineering machinery 2
The size of operational ton can start or stop motor 2.1 at any time.On the other hand, engine 2.3 is reached after speed limit, it is impossible to
Continue speedup, and the appropriate overspeed of motor 2.1 does not also influence on the performance of motor 2.1, utilizes electricity, 2.1 this spy
Point, can stop motor 2.1 in time when engineering machinery 2 loads low, save the energy, and in the heavy duty of engineering machinery 2
When, motor 2.1 can Jia one power again, and extend the use scope of equal engineering machinery 2.
When engineering machinery 2 is transported or shifted, the removable power supply car 1 of bad connection can be the electricity of removable power supply car 1
Cable is disengaged, and only allows engine 2.3 to drive the second hydraulic pressure pump group 2.4, and drives engineering machinery 2.
The electric power of removable power supply car 1 is not necessarily non-to be obtained from the first generator 2.7 and the second generator 2.9.3,
It charged on power network can come to power for engineering machinery 2 later, if be by this way main, can suitably reduce hair
The size of motivation 2.3, or the rotating speed of engine 2.3 is turned down, reduce the charging ratio of the removable power supply car 1 of 2.3 pairs of engine.
Under this use state, can many electric energy using for the use of removable power supply car 1 as far as possible, but if from removable car 1 of powering
The electric energy of upper offer is excessive, it is necessary to loads very big battery 1.1 and using very thick cable, may move the volume of power supply car 1
Weight etc. all can significantly increase, and increase substantially the cost of removable power supply car 1, removable the motor-driven of car 1 of powering of reduction
Property, while reducing the convenience of work of engineering machinery 2.So, suitable rational hair is selected according to the size of the type of engineering machinery 2
The size of motivation 2.3 and battery 1.1 is very important.
There are three criterions may be referred to：First is the maximum pump discharge criterion of engine 2.3.There is engineering machinery 2 to be vented at some
The area of limitation, when the exhaust level of engine 2.3 exceedes to a certain degree, it will by many using restricting, this
Area, allow engine 2.3 capacity less than these restriction values be most important.The part being short of power is then with removable power supply car
1 provides, and engine 2.3 power determined by this criterion is W1.
Second is the maximum general removable power supply criterion of car 1.Engineering machinery 2 if a certain model specially develops a kind of
Removable power supply car 1, its cost can be increased considerably, therefore, it is preferable to can be using maximum universal removable power supply car 1, root
Power required for the maximum power and engineering machinery 2 that can be provided according to removable power supply car 1 determines the minimum power of engine 2.3
W2。
3rd is the criterion of minimum engine 2.3, that is, is started, and 2.3 when being operated alone engineering machinery 2, required least work
Rate W3.
The criterion of the optimal engine performance number drawn under above-mentioned three kinds of criterions alternatively engine 2.3, chooses hair
After motivation 2.3, the capacity of battery 1.1 and the confession of removable power supply car 1 are determined in the peak power according to required for engineering machinery 2
Electrical power.
Specific embodiment of the utility model is the foregoing is only, but architectural feature of the present utility model is not limited to
This, the utility model can be used on similar product, and any those skilled in the art is in field of the present utility model, institute
The change or modification of work are all covered among the scope of the claims of the present utility model.
Claims (6)
1. a kind of electronic engineering machinery of hybrid drive-type, including removable power supply car（1）And engineering machinery（2）, it is characterised in that：
The removable power supply car（1）In be provided with battery（1.1）, output power converting means（1.2）, power control（1.3）And
Charging device（1.4）, the engineering machinery（2）In be provided with motor（2.1）, the first hydraulic pressure pump group（2.2）, engine（2.3）,
Two hydraulic pressure pump groups（2.4）, fluid power system（2.5）And fuel tank（2.6）, motor（2.1）Electric power by removable power supply car（1）
There is provided；
Motor（2.1）Drive the first hydraulic pressure pump group（2.2）, engine（2.3）Drive the second hydraulic pressure pump group（2.4）, by fuel tank
（2.6）In pressure oil be supplied to fluid power system（2.5）In oil cylinder or hydraulic motor（2.5.1）；
The engineering machinery（2）In be additionally provided with by engine（2.3）The first generator driven（2.7）, the first generator（2.7）
The electric power of generation passes through electric power output control device（2.8）Transmit to removable power supply car（1）Charging device（1.4）, become
It can be battery（1.1）The electric power of charging.
2. the electronic engineering machinery of a kind of hybrid drive-type according to claim 1, it is characterised in that：The removable power supply
Car（1）With the engineering machinery（2）In be designed with communication device（3）, the transmission for signal between the two.
3. the electronic engineering machinery of a kind of hybrid drive-type according to claim 1, it is characterised in that：The engineering machinery
（2）In be provided with hydraulic-electric converting means（2.9）, the electric power produced by the device passes through electric power output control device（2.8）Pass
Transport to removable power supply car（1）Charging device（1.4）, it can be battery to become（1.1）The electric power of charging.
4. the electronic engineering machinery of a kind of hybrid drive-type according to claim 3, it is characterised in that：The hydraulic-electric becomes
Changing device（2.9）Including reversal valve（2.9.1）, hydraulic motor（2.9.2）, the second generator（2.9.3）And control device
（2.9.4）, reversal valve（2.9.1）It is installed on the oil cylinder or hydraulic motor moved up and down（2.5.1）Pressure oil return pipe
Lu Shang, passes through control device（2.9.4）, reversal valve（2.9.1）Change return line, pressure oil is passed through hydraulic motor
（2.9.2）Fuel tank is flowed into again（2.6）, hydraulic motor（2.9.2）Drive the second generator（2.9.3）Generate electricity, the electric power of generation leads to
Cross electric power output control device（2.8）Transmit to removable power supply car（1）Charging device（1.4）, it can be battery to become（1.1）
The electric power of charging.
5. the electronic engineering machinery of a kind of hybrid drive-type according to claim 2, it is characterised in that：The engineering machinery
（2）Pass through operation handle（2.10）Realize to motor（2.1）And engine（2.3）Working condition and working strength control.
6. the electronic engineering machinery of a kind of hybrid drive-type according to claim 5, it is characterised in that：The operation handle
（2.10）Provided with acceleration button（2.10.1）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720275959.5U CN206551895U (en) | 2017-03-21 | 2017-03-21 | A kind of electronic engineering machinery of hybrid drive-type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720275959.5U CN206551895U (en) | 2017-03-21 | 2017-03-21 | A kind of electronic engineering machinery of hybrid drive-type |
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| Publication Number | Publication Date |
|---|---|
| CN206551895U true CN206551895U (en) | 2017-10-13 |
Family
ID=60365121
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| CN201720275959.5U Active CN206551895U (en) | 2017-03-21 | 2017-03-21 | A kind of electronic engineering machinery of hybrid drive-type |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106956607A (en) * | 2017-03-21 | 2017-07-18 | 杭州蓝力电动科技有限公司 | Mixed motivity type engineering machinery |
| CN114018115A (en) * | 2022-01-06 | 2022-02-08 | 北京北矿亿博科技有限责任公司 | Charging trolley power system, charging trolley and control method thereof |
-
2017
- 2017-03-21 CN CN201720275959.5U patent/CN206551895U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106956607A (en) * | 2017-03-21 | 2017-07-18 | 杭州蓝力电动科技有限公司 | Mixed motivity type engineering machinery |
| CN106956607B (en) * | 2017-03-21 | 2023-10-24 | 杭州蓝力电动科技有限公司 | Hybrid power type engineering machinery |
| CN114018115A (en) * | 2022-01-06 | 2022-02-08 | 北京北矿亿博科技有限责任公司 | Charging trolley power system, charging trolley and control method thereof |
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