CN102642461A - Hybrid power driving device of bulldozer and bulldozer - Google Patents
Hybrid power driving device of bulldozer and bulldozer Download PDFInfo
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- CN102642461A CN102642461A CN2012101401289A CN201210140128A CN102642461A CN 102642461 A CN102642461 A CN 102642461A CN 2012101401289 A CN2012101401289 A CN 2012101401289A CN 201210140128 A CN201210140128 A CN 201210140128A CN 102642461 A CN102642461 A CN 102642461A
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- bulldozer
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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
Abstract
The invention discloses a hybrid power driving device of a bulldozer, which comprises an engine, a generator, a current control module and an electrical motor, wherein an output shaft of the engine is connected with a power distribution device, an output shaft of the power distribution device is connected with the generator, alternating current generated by the generator is converted by the current control module and then drives the electrical motor, and the electrical motor drives a drive sprocket and an apron wheel. The driving device is steady and reliable in transmission and low in noise and oil consumption, has high transmission efficiency, can respond to changes of loads quickly, and can achieve stepless speed change. The invention also discloses the bulldozer with the driving device.
Description
Technical field
The present invention relates to technical field of engineering machinery, particularly the hybrid drive of bulldozer.The invention still further relates to the bulldozer that is provided with said actuating device.
Background technology
The Along with people's pay attention to day by day is to the protection of environment and the use effectively and reasonably of the energy, and bulldozers efficient, energy-saving and environmental protection just become the development tendency of bulldozer industry.
At present, the power transmission mode that is applied to bulldozer mainly contains mechanical drive, hydromechanical drive and hydrostatic transmissions, and its power delivery mode and merits and faults are following:
1) mechanical drive refers to utilize mechanical system transferring power and motion, and its power transmission line is: driving engine-power-transfer clutch-change speed gear box-transmission shaft-steering clutch and drg-whole transmission-drive wheel; Machinery driving efficiency high and steady, reliable operation, but be difficult to realize stepless change, also relatively poor to the adaptive ability of load.
2) hydraulic transmission; Be to use a kind of comparatively widely type of drive at present; Utilize working-blade and power fluid mutual action, cause the mutual conversion of mechanical energy and liquid ability, come transferring power with this; And changing torque through the variation of liquid moment of momentum, its power transmission line is: driving engine-tor-con-change speed gear box-main gear-steering clutch and drg-whole transmission-drive wheel; Hydraulic transmission has alleviated the vibrations of vehicle, and it is even, soft that vehicle is quickened, and have certain load adaptive ability, but driving efficiency is lower, and the high efficiency scope is narrower, can not realize stepless change equally.
3) hydrostatic transmissions utilizes the pressure of liquid can come transferring power, and its power transmission line is: driving engine-Hydraulic Pump-HM Hydraulic Motor-whole transmission-drive wheel; Hydrostatic transmissions can realize stepless change, has stronger load adaptive ability, but receives fluid resistance to flow and leakage contribution, and driving efficiency is lower, adds the compressibility of fluid, can not guarantee strict transmitting ratio.
As stated, existing bulldozer power transmission mode is mainly mechanical drive, hydraulic transmission, hydrostatic transmissions.All there is the deficiency that self can't overcome in these type of drive, and are big like noise, and oil consumption is high, and driving efficiency is low, slow to load response, can not realize stepless change etc.
In addition; Have benefited from the fast development of automobile hybrid power technology; Hybrid power is becoming the main direction of construction machinery and equipment power technology development; And the integrated bulldozer hybrid power system of existing machinery transmission and motor-driven needs mechanical integrated box body device, because the mechanical, electrical Highgrade integration of driver module, the stability of whole system and thermal diffusivity are difficult to reach work requirements.
Summary of the invention
First purpose of the present invention provides a kind of bulldozer hybrid drive.This actuating device stable drive is reliable, noise is little, oil consumption is low, has higher driving efficiency, and is fast to the variation response of load, can realize stepless change.
Second purpose of the present invention provides a kind of bulldozer that is provided with said bulldozer hybrid drive.
In order to realize above-mentioned first purpose, the present invention provides a kind of bulldozer hybrid drive, comprises driving engine, electrical generator, current control module and electrical motor; The output shaft of said driving engine connects distributing means for power supply, and the output shaft of said distributing means for power supply connects electrical generator; The alternating current that said electrical generator produces is through the said electrical motor of said current control module conversion rear drive; Said electrical motor drives drive sprocket and crawler belt through the terminal transmission device.
Preferably, said electrical motor comprises left electrical motor and right electrical motor, and wherein said left electrical motor drives left drive sprocket and left crawler belt through left terminal transmission device, and said right electrical motor drives right drive sprocket and right-hand track chiain through right terminal transmission device.
Preferably, said current control module is provided with closed-centre system; When workload demands during less than said generated output power, a part of electric energy is through the said electrical motor of current control module conversion rear drive, and all the other electric energy are said closed-centre system charging through current control module then; When workload demands during greater than said generated output power, said closed-centre system and the said electrical motor of electrical generator driven in common.
Preferably, it is characterized in that said current control module is power electronics unit or power inverter; Said power electronics unit or power inverter become direct current (DC) with the AC rectification that said electrical generator produces, and are reverse into controlled three plase alternating current then and drive said electrical motor.
Preferably, it is characterized in that said distributing means for power supply is auxiliary gear box or speeds match gearbox.
Preferably, said terminal transmission device is provided with steering clutch and drg.
Preferably, further comprise entire car controller, this entire car controller is connected with each member control system, each auxiliary device interface and monitoring display system through the CAN bus.
Preferably, said member control system comprises first ECU electronic control unit, second ECU electronic control unit, the 3rd ECU electronic control unit, electric machine control system, energy storage control system; Said first ECU electronic control unit connects said driving engine; Said second ECU electronic control unit connects said electrical generator, connects said current control module simultaneously; Said the 3rd ECU electronic control unit connects said terminal transmission device; Said electric machine control system connects said current control module, connects said electrical motor simultaneously; Said energy storage control system connects said closed-centre system.
Preferably, said entire car controller is connected with electric machine control system with first ECU electronic control unit, second ECU electronic control unit through a CAN bus; Said entire car controller is connected with energy storage control system, the 3rd ECU electronic control unit, each auxiliary device interface and monitoring display system through the 2nd CAN bus.
For realizing above-mentioned second purpose, the present invention provides a kind of bulldozer, comprises bulldozer body and actuating device, and said actuating device is above-mentioned each described bulldozer hybrid drive.
Bulldozer hybrid drive provided by the invention has following beneficial effect:
1) use electrical generator and electric driver module to replace tor-con and change speed gear box, make movement parts reduce 60%, the weight of complete machine greatly alleviates.
2) cancelled the power shift gear operation, faster to the response of workload demand, and operation is more steady, and noise level greatly reduces.
3) the average work efficiency of the turbine transformer of traditional hydromechanical drive out of reach 70% also; Add with the coupling behind efficiency of driving engine lower; Drawbar efficiency is the highest to be had only about 63%, and the double-motor individual drive has been cancelled tor-con, so have higher driving efficiency.
4) owing to driving to have cut off with mechanically operated, electricity directly connects; Avoided directly feeding back on the driving engine complicated, unsettled operating mode load; Therefore, driving engine is easy to be controlled at operation in the narrower range of speed, can make driving engine always work in efficient district; Further reduce oil consumption and discharging, prolong engine life.
5) rotating speed of electrical motor can directly change adjusting continuously through electric current, thereby realizes the continuous transition of speed between the automobile gear level, i.e. stepless change.
Bulldozer provided by the present invention is provided with above-mentioned actuating device, because above-mentioned actuating device has above-mentioned technique effect, the bulldozer that is provided with this actuating device also should possess the corresponding techniques effect.
Description of drawings
Fig. 1 is the structural representation of bulldozer hybrid drive provided by the present invention;
Fig. 2 is the power transmission line figure of bulldozer hybrid drive shown in Figure 1;
Fig. 3 is the control block diagram of bulldozer hybrid drive shown in Figure 1.
Among the figure:
1. driving engine 2. auxiliary gear boxs 3. electrical generators 4. power inverters 5. steering clutchs 6. drgs 7. electrical motors 8. terminal transmission devices 9. drive sprockets 10. crawler belts 11. closed-centre systems
The specific embodiment
Core of the present invention provides a kind of bulldozer hybrid drive.This actuating device stable drive is reliable, noise is little, oil consumption is low, has higher driving efficiency, and is fast to the variation response of load, can realize stepless change.
Another core of the present invention provides a kind of bulldozer that is provided with said bulldozer hybrid drive.
In order to make those skilled in the art person understand the present invention program better, the present invention is done further detailed description below in conjunction with the accompanying drawing and the specific embodiment.
Please refer to Fig. 1, Fig. 1 is the structural representation of bulldozer hybrid drive provided by the present invention.
In a kind of specific embodiment; Bulldozer hybrid drive provided by the present invention mainly is made up of driving engine 1, auxiliary gear box 2, electrical generator 3, power inverter 4, electrical motor 7, steering clutch 5, drg 6, terminal transmission device 8, drive sprocket 9, crawler belt 10 etc.
The output shaft of driving engine 1 connects auxiliary gear box 2; The output shaft of auxiliary gear box 2 connects electrical generator 3; The alternating current that electrical generator 3 produces is rectified into direct current (DC) through power inverter 4; Power inverter 4 becomes controlled three-phase alternating current electric drive motor 7 with dc inverter more then, and electrical motor 7 connects steering clutch 5, drg 6, drives drive sprocket 9 and crawler belt 10 through terminal transmission device 8.
Particularly, electrical motor 7 comprises left electrical motor and right electrical motor, and wherein left electrical motor drives left drive sprocket and left crawler belt through left terminal transmission device, and right electrical motor drives right drive sprocket and right-hand track chiain through right terminal transmission device.
Certainly, power inverter 4 can also adopt other current control module with functions such as rectification, inversion, adjustings, like power electronics unit.
Please refer to Fig. 2, Fig. 2 is the power transmission line figure of bulldozer hybrid drive shown in Figure 1.
As shown in the figure; Its power delivery mode is: power transmits out after auxiliary gear box drives electrical generator from driving engine; The alternating current that electrical generator produces is rectified into direct current (DC) through power inverter, and power inverter becomes controlled three-phase alternating current electric drive motor work with dc inverter more then, about two electrical motors drive the terminal transmission device of both sides respectively; Drive left and right sidesing driving wheel, thereby realize advancing of bulldozer.
When bulldozer was worked, by the work of engine drives electrical generator, the electric current that electrical generator produces was through power inverter rear drive electrical motor.When about two electrical motors when just changeing synchronously, vehicle advances; During counter-rotating synchronously, vehicle rollback; When two motor differentials turn round, realize the vehicle differential steering.Because the rotating speed of electrical motor can be regulated through the electric current continually varying, therefore can realize the continuous transition of speed between each gear of vehicle, thereby realize the vehicle stepless change.
For making full use of the expended energy under the changeable operating mode of bulldozer, can further set up closed-centre system 11, adopt reservoir capacitance here.When workload demands during less than generated output power, electrical generator part electric energy is used for driving motor 7 work after through power inverter 4 conversions, and all the other electric energy then give closed-centre system 11 chargings through power inverter 4; Closed-centre system 11 can respond bulldozer dynamic operation condition bearing power demand fast, and when load was abominable, closed-centre system 11 can provide auxiliary energy, with electrical generator 3 driven in common electrical motors 7, has improved the capacity usage ratio of system greatly.
Please refer to Fig. 3, Fig. 3 is the control block diagram of bulldozer hybrid drive shown in Figure 1.
As shown in the figure, on mode, entire car controller ECU is connected with each member control system, each auxiliary device interface and monitoring display system through the CAN bus.
Member control system comprises the first ECU electronic control unit EMC, the second ECU electronic control unit EMC, the 3rd ECU electronic control unit EMC, electric machine control system PCU, energy storage control system TCU; The first ECU electronic control unit EMC connects driving engine; The second ECU electronic control unit EMC connects electrical generator, connects current control module simultaneously; The 3rd ECU electronic control unit EMC connects the terminal transmission device; Electric machine control system PCU connects current control module, connects electrical motor simultaneously; Energy storage control system TCU connects closed-centre system.
Particularly, entire car controller ECU is connected with electric machine control system PCU with the first ECU electronic control unit EMC, the second ECU electronic control unit EMC through CAN bus A; Be connected with energy storage control system TCU, the 3rd ECU electronic control unit EMC, each auxiliary device interface and monitoring display system through the CAN bus B.
This actuating device has been realized the tandem oil electric mixed dynamic of bulldozer, and has adopted the distributed control network pattern, layering, hierarchical network CAN bus management and control, the development process control policy of enforcement " V " pattern.
Owing to thoroughly abandoned mechanical integrated box body device, therefore left and right electrical motor does not have mechanical constraint, relies on the length velocity relation constraint that control realizes bulldozer both sides sprocket wheel fully.Can realize continuous turning, craspedodrome or reversing through length velocity relation.Through to driving engine and closed-centre system co-operative control; And the fuel feeding of equipment carried out independent regulation; Can further optimize the operation interval of driving engine, improve transaction capabilities and the engine fuel economy and the emission behavior of bulldozer, improve fuel economy and work efficiency; Simplify drive system structure, reduce discharging and maintenance cost.
Above-mentioned bulldozer hybrid drive only is a kind of preferred version, specifically is not limited thereto, and can make pointed adjustment according to actual needs on this basis, thereby obtain different embodiment.Because mode in the cards is more, casehistory no longer one by one just here.
Except above-mentioned control method, the present invention also provides a kind of bulldozer, comprises bulldozer body and actuating device, and said actuating device is a bulldozer hybrid drive mentioned above, and all the other structures please refer to prior art, and this paper repeats no more.
More than bulldozer hybrid drive provided by the present invention and bulldozer have been carried out detailed introduction.Used concrete example among this paper principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand core concept of the present invention.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (10)
1. a bulldozer hybrid drive is characterized in that, comprises driving engine, electrical generator, current control module and electrical motor; The output shaft of said driving engine connects distributing means for power supply, and the output shaft of said distributing means for power supply connects electrical generator; The alternating current that said electrical generator produces is through the said electrical motor of said current control module conversion rear drive; Said electrical motor drives drive sprocket and crawler belt through the terminal transmission device.
2. bulldozer hybrid drive according to claim 1; It is characterized in that; Said electrical motor comprises left electrical motor and right electrical motor; Wherein said left electrical motor drives left drive sprocket and left crawler belt through left terminal transmission device, and said right electrical motor drives right drive sprocket and right-hand track chiain through right terminal transmission device.
3. bulldozer hybrid drive according to claim 2 is characterized in that said current control module is provided with closed-centre system; When workload demands during less than said generated output power, a part of electric energy is through the said electrical motor of current control module conversion rear drive, and all the other electric energy are said closed-centre system charging through current control module then; When workload demands during greater than said generated output power, said closed-centre system and the said electrical motor of electrical generator driven in common.
4. according to each described bulldozer hybrid drive of claim 1 to 3, it is characterized in that said current control module is power electronics unit or power inverter; Said power electronics unit or power inverter become direct current (DC) with the AC rectification that said electrical generator produces, and are reverse into controlled three plase alternating current then and drive said electrical motor.
5. according to each described bulldozer hybrid drive of claim 1 to 3, it is characterized in that said distributing means for power supply is auxiliary gear box or speeds match gearbox.
6. according to each described bulldozer double-motor individual drive device of claim 1 to 3, it is characterized in that said terminal transmission device is provided with steering clutch and drg.
7. according to each described bulldozer hybrid drive of claim 1 to 3; It is characterized in that; Further comprise entire car controller, this entire car controller is connected with each member control system, each auxiliary device interface and monitoring display system through the CAN bus.
8. bulldozer hybrid drive according to claim 7 is characterized in that, said member control system comprises first ECU electronic control unit, second ECU electronic control unit, the 3rd ECU electronic control unit, electric machine control system, energy storage control system; Said first ECU electronic control unit connects said driving engine; Said second ECU electronic control unit connects said electrical generator, connects said current control module simultaneously; Said the 3rd ECU electronic control unit connects said terminal transmission device; Said electric machine control system connects said current control module, connects said electrical motor simultaneously; Said energy storage control system connects said closed-centre system.
9. bulldozer hybrid drive according to claim 8 is characterized in that, said entire car controller is connected with electric machine control system with first ECU electronic control unit, second ECU electronic control unit through a CAN bus; Said entire car controller is connected with energy storage control system, the 3rd ECU electronic control unit, each auxiliary device interface and monitoring display system through the 2nd CAN bus.
10. a bulldozer comprises bulldozer body and actuating device, it is characterized in that, said actuating device is aforesaid right requirement 1 to 9 each described bulldozer hybrid drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101401289A CN102642461A (en) | 2012-05-08 | 2012-05-08 | Hybrid power driving device of bulldozer and bulldozer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101401289A CN102642461A (en) | 2012-05-08 | 2012-05-08 | Hybrid power driving device of bulldozer and bulldozer |
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| CN102642461A true CN102642461A (en) | 2012-08-22 |
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| CN2012101401289A Pending CN102642461A (en) | 2012-05-08 | 2012-05-08 | Hybrid power driving device of bulldozer and bulldozer |
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Cited By (5)
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| CN103552460A (en) * | 2013-11-20 | 2014-02-05 | 山推工程机械股份有限公司 | Engineering truck, double independent driving system and control method of double independent driving system |
| CN104314124A (en) * | 2014-10-23 | 2015-01-28 | 国机重工（洛阳）有限公司 | Single-motor double-shaft-output electrically-driven crawler-type bulldozer |
| CN104309475A (en) * | 2014-10-23 | 2015-01-28 | 国机重工（洛阳）有限公司 | Single-motor double-shaft-output electric transmission system |
| CN104727364A (en) * | 2015-03-25 | 2015-06-24 | 国机重工（洛阳）有限公司 | Bulldozer speed self-fine-adjusting device driven by permanent magnetic synchronous AC motor |
| CN109823159A (en) * | 2019-03-01 | 2019-05-31 | 丰疆智慧农业股份有限公司 | Distance increasing unit and mixed-power tractor and its application |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103552460A (en) * | 2013-11-20 | 2014-02-05 | 山推工程机械股份有限公司 | Engineering truck, double independent driving system and control method of double independent driving system |
| CN104314124A (en) * | 2014-10-23 | 2015-01-28 | 国机重工（洛阳）有限公司 | Single-motor double-shaft-output electrically-driven crawler-type bulldozer |
| CN104309475A (en) * | 2014-10-23 | 2015-01-28 | 国机重工（洛阳）有限公司 | Single-motor double-shaft-output electric transmission system |
| CN104727364A (en) * | 2015-03-25 | 2015-06-24 | 国机重工（洛阳）有限公司 | Bulldozer speed self-fine-adjusting device driven by permanent magnetic synchronous AC motor |
| CN109823159A (en) * | 2019-03-01 | 2019-05-31 | 丰疆智慧农业股份有限公司 | Distance increasing unit and mixed-power tractor and its application |
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Application publication date: 20120822 |