CN102505716A - Hybrid bulldozer and power system thereof - Google Patents
Hybrid bulldozer and power system thereof Download PDFInfo
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- CN102505716A CN102505716A CN2011103048808A CN201110304880A CN102505716A CN 102505716 A CN102505716 A CN 102505716A CN 2011103048808 A CN2011103048808 A CN 2011103048808A CN 201110304880 A CN201110304880 A CN 201110304880A CN 102505716 A CN102505716 A CN 102505716A
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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
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- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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Abstract
The invention provides a power system of a hybrid bulldozer. The power system comprises two symmetrically distributed subsystems which are same in structure, and each subsystem comprises a final drive unit (22) and a motor deceleration integration device (23), wherein each final drive unit (22) is provided with a secondary speed reducer, the output end of each secondary speed reducer is connected with a walking device (21) of the power system of the hybrid bulldozer, and each motor deceleration integration device (23) is connected with each final drive unit (22) and comprises a primary speed reducer and a motor (232). The power system of the hybrid bulldozer, disclosed by the invention, utilizes three-level deceleration and simultaneously avoids utilization of a differential. Compared with the power system, employing four-level deceleration and provided with the differential, of the hybrid bulldozer in the prior art, the power system of the hybrid bulldozer, disclosed by the invention, can be used for reducing the number of used parts and components so as to reduce a space occupied by the power system of the hybrid bulldozer. The invention further provides a hybrid bulldozer with the power system.
Description
Technical field
The present invention relates to bulldozer manufacturing technology field, more particularly, relate to a kind of hybrid power bulldozer and dynamical system thereof.
Background technology
The aggravation of and scarcity of resources contradiction growing along with energy demand, energy-saving and emission-reduction receive increasing concern.In engineering machinery field, adopting the hybrid power technology to carry out energy recovery and reuse becomes energy-saving and cost-reducing effective measures of engineering machinery.
Hybrid power system is applied to bulldozer, has produced the hybrid power bulldozer, and it can realize the energy-saving and emission-reduction of engineering machinery.
The hybrid power bulldozer: a kind of bulldozer of novel energy-conserving, its walking relies on motor-driven, but not is directed to motor.Needed energy source is in the electricity generation system of airborne motor during machine operation.
Bulldozer when work load is very big, and the needed moment of torsion of one-sided running gear can surpass 50000NM.In the hybrid power bulldozer, power transmission line is: Engine-Generator-motor-running gear.Electrified locomotive motor can directly provide so big moment of torsion at present, but can't be installed on the bulldozer.The peak torque that conventional motor is provided generally about 1000NM, for this reason, need install reducer additional between motor and the running gear, and gearratio need reach more than 80 the moment of torsion that is transferred to running gear with raising.
The power of transmission system passes to drive sprocket by motor in the hybrid power bulldozer; And the power of traditional bulldozer passes to drive sprocket by motor through speed changer, central transmission device and final drive, and this has structurally determined the hybrid power bulldozer can not use the structure of traditional bulldozer transmission system fully.Therefore, need a kind of hybrid power bulldozer dynamical system of design, the resultant gear ratio of hybrid power bulldozer is reached more than 80 be transferred to the moment of torsion of running gear with raising, and use existing layout of traditional bulldozer and part as far as possible.
Running gear: be made up of drive sprocket, guide wheel, thrust wheel, holder sprocket wheel and crawler belt, the driving torque that passes to transmission system on the drive sprocket changes vehicle operation into and goes required driving force and speed with rotatablely moving.
Final drive: be the important component part of traditional bulldozer transmission system, integrated two reduction gear and bulldozer drive sprocket, realizing slowing down increases the function of square, to satisfy the demand of walking and various operation operating modes.
In order to make the hybrid power bulldozer can be applied to actual engineering machinery field, adopt single motor scheme at present.
Single motor scheme; Be that hybrid power bulldozer dynamical system has a motor, the structural representation of this list electric machine mixed power bulldozer dynamical system is as shown in Figure 1, comprises running gear 11, final drive 12 and motor differential deceleration integrating device 13; Wherein, Motor differential deceleration integrating device 13 is motor, differential mechanism and reducer three's a conglomerate, and this conglomerate links to each other with final drive 12, and final drive 12 links to each other with running gear 11.
But in single electric machine mixed power bulldozer dynamical system, reducer is a two stage reducer; Final drive 12 is provided with two stage reducer; Then should list electric machine mixed power bulldozer dynamical system adopt level Four to slow down, and make its structure complicated, occupation space be bigger; And single motor also needs differential mechanism in the process that drives, and this makes that further the structure of whole bulldozer dynamical system is complicated.
In sum, how a kind of hybrid power bulldozer dynamical system being provided, to reduce hybrid power bulldozer dynamical system occupation space, is present those skilled in the art's problem demanding prompt solution.
Summary of the invention
In view of this, the invention provides a kind of hybrid power bulldozer dynamical system, reduced the use of hybrid power bulldozer dynamical system component, and then reduced hybrid power bulldozer dynamical system occupation space.
In order to achieve the above object, the present invention provides following technical scheme:
A kind of hybrid power bulldozer dynamical system, it has two and is symmetrically distributed and the identical subsystem of structure;
Said subsystem comprises: the output final drive that links to each other with the running gear of this hybrid power bulldozer dynamical system and the motor deceleration integrating device that links to each other with said final drive that are provided with two stage reducer and this two stage reducer;
Said motor deceleration integrating device comprises one-level reducer and motor.
Preferably; In the above-mentioned hybrid power bulldozer dynamical system; The output shaft of said motor deceleration integrating device is the power shaft of said final drive, and the output shaft of perhaps said motor deceleration integrating device links to each other through universal joint with the power shaft of said final drive.
Preferably, in the above-mentioned hybrid power bulldozer dynamical system, said one-level reducer is a planetary reducer, and it comprises:
The planet carrier that links to each other with the power shaft of said final drive;
The sun gear that links to each other with the output shaft of said motor;
The external toothing that links to each other with said motor;
Be meshed with said sun gear and said external toothing, and be arranged at the planetary gear on the said planet carrier.
Preferably, in the above-mentioned hybrid power bulldozer dynamical system, the housing of said motor links to each other through threaded connector with said external toothing.
Preferably, in the above-mentioned hybrid power bulldozer dynamical system, the one-level reducer is the spur gear reducer, and it comprises:
The input gear that links to each other with the output shaft of said motor;
Be meshed with said input gear, and the output gear that links to each other with the power shaft of said final drive.
Preferably, in the above-mentioned hybrid power bulldozer dynamical system, the housing of the housing of said motor and said spur gear reducer is an integral structure.
Preferably, in the above-mentioned hybrid power bulldozer dynamical system, the reducer of said final drive is the reducer that spur gear reducer or spur gear combine with planetary gear.
Based on the above-mentioned hybrid power bulldozer dynamical system that provides, the present invention also provides a kind of hybrid power bulldozer, and it has above-mentioned any described hybrid power bulldozer dynamical system.
Hybrid power bulldozer dynamical system provided by the invention; Motor deceleration integrating device is provided with the one-level reducer, and final drive is provided with two stage reducer, and this hybrid power bulldozer dynamical system has adopted three grades of decelerations; This hybrid power bulldozer dynamical system has two independent motor simultaneously; Both can control the speed of both sides respectively, and then have realized the electronic differential function, have avoided the use differential mechanism.The hybrid power bulldozer dynamical system of slowing down with level Four in the prior art and being provided with differential mechanism is compared, and has reduced the use of hybrid power bulldozer dynamical system component, and then has reduced hybrid power bulldozer dynamical system occupation space.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of single electric machine mixed power bulldozer dynamical system that Fig. 1 provides for prior art;
The structural representation of the subsystem of the hybrid power bulldozer dynamical system that Fig. 2 provides for the embodiment of the invention;
The structural representation of the one-level reducer that Fig. 3 provides for the embodiment of the invention;
The another kind of structural representation of the subsystem of the hybrid power bulldozer dynamical system that Fig. 4 provides for the embodiment of the invention.
Because two sub-systems of the hybrid power bulldozer dynamical system that the embodiment of the invention provides are symmetrically distributed, and structure is identical, so Fig. 2 and Fig. 4 have only drawn the half the of hybrid power bulldozer dynamical system, the i.e. structural representation of a sub-systems.
Among last Fig. 1-4:
The specific embodiment
For quote and know for the purpose of, now the technical term that relates among the present invention is explained as follows:
The hybrid power bulldozer: a kind of bulldozer of novel energy-conserving, its walking relies on motor-driven, but not is directed to motor.Needed energy source is in the electricity generation system of airborne motor during machine operation.
Running gear: be made up of drive sprocket, guide wheel, thrust wheel, holder sprocket wheel and crawler belt, the driving torque that passes to transmission system on the drive sprocket changes vehicle operation into and goes required driving force and speed with rotatablely moving.
Final drive: be the important component part of traditional bulldozer transmission system, integrated two reduction gear and bulldozer drive sprocket, realizing slowing down increases the function of square, to satisfy the demand of walking and various operation operating modes.
Universal joint refers to and utilizes ball-type to connect the mechanical part of realizing that out-of-alignment power transmits.
The invention provides a kind of hybrid power bulldozer dynamical system, reduced parts, and then reduced hybrid power bulldozer dynamical system occupation space.
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Please refer to accompanying drawing 1-4, the structural representation of single electric machine mixed power bulldozer dynamical system that Fig. 1 provides for prior art; The structural representation of the subsystem of the hybrid power bulldozer dynamical system that Fig. 2 provides for the embodiment of the invention; The structural representation of the one-level reducer that Fig. 3 provides for the embodiment of the invention; The another kind of structural representation of the subsystem of the hybrid power bulldozer dynamical system that Fig. 4 provides for the embodiment of the invention.
Because two sub-systems of the hybrid power bulldozer dynamical system that the embodiment of the invention provides are symmetrically distributed, and structure is identical, so Fig. 2 and Fig. 4 have only drawn the half the of double-motor hybrid bulldozer dynamical system.
The hybrid power bulldozer dynamical system that the embodiment of the invention provides has two and is symmetrically distributed and the identical subsystem of structure; Subsystem comprises: be provided with the final drive 22 that the output of two stage reducer and this two stage reducer links to each other with the running gear 21 of this hybrid power bulldozer dynamical system, with the motor deceleration integrating device 23 that links to each other with final drive 22; Motor deceleration integrating device 23 comprises one-level reducer and motor 232.One-level reducer and motor 232 carry out integrated design and installation, are relatively independent conglomerates.
The hybrid power bulldozer dynamical system that the foregoing description provides comprises running gear 21, coupled final drive 22 and motor deceleration integrating device 23.Power passes to running gear 21 through motor deceleration integrating device 23 with final drive 22, achieves work.
In the above-mentioned hybrid power bulldozer dynamical system, the motor in two sub-systems is relatively independent, can distinguish the speed of Control of Automobile both sides, and then realizes the electronic differential function, avoids the use of differential mechanism.
In the above-mentioned hybrid power bulldozer dynamical system; The gearratio of one-level reducer is 3～6; The speed reducing ratio maximum of final drive 22 can be 27～35; Then the total gearratio of this hybrid power bulldozer dynamical system can reach 81～210, can offer the required moment of torsion of running gear 21, promptly can satisfy the job requirement of hybrid power bulldozer.
In the hybrid power bulldozer dynamical system provided by the invention; Motor deceleration integrating device 23 is provided with the one-level reducer, and final drive 22 is provided with two stage reducer, and this hybrid power bulldozer dynamical system has adopted three grades of decelerations; This hybrid power bulldozer dynamical system has two motors 232 simultaneously; Both can control the speed of both sides respectively, and then have realized the electronic differential function, have avoided the use differential mechanism.The hybrid power bulldozer dynamical system of slowing down with level Four in the prior art and being provided with differential mechanism is compared, and has reduced the use of these hybrid power bulldozer dynamical system component, and then has reduced hybrid power bulldozer dynamical system occupation space.
Simultaneously, in the hybrid power bulldozer dynamical system that the foregoing description provides, running gear 21 is running gear 11 and final drive 12 in traditional bulldozer with final drive 22, and the two all is applied in reality.Because the running gear in traditional bulldozer 11 is reliable with final drive 12 technology, and has produced in batches, then reduced the manufacturing cost of this hybrid power bulldozer dynamical system.And the hybrid power bulldozer dynamical system that the foregoing description provides adopts three grades of decelerations, has improved the transmission efficiency of this dynamical system to a certain extent.
In the hybrid power bulldozer dynamical system that the foregoing description provides, one-level reducer and motor 232 carry out integrated design and installation, are relatively independent driving deceleration devices.Preferably, the output shaft of motor deceleration integrating device 23 is the power shaft of final drive 22, and independently dismounting and use of motor deceleration integrating device 23 helps the versatility and the interchangeability of part, is convenient to the maintenance of system.Certainly, the output shaft of motor deceleration integrating device 23 also can link to each other through universal joint with the power shaft of final drive 22.
In the hybrid power bulldozer dynamical system that the foregoing description provides, the one-level reducer can be planetary reducer 231, as shown in Figures 2 and 3.Planetary reducer 231 comprises: the planet carrier 31 that links to each other with the power shaft of final drive 22; The sun gear 34 that links to each other with the output shaft of motor 232; The external toothing 32 that links to each other with motor 232; Be meshed with sun gear 34 and external toothing 32, and be arranged at the planetary gear 33 on the planet carrier 31.The planetary reducer transmitted power is big, speed ratio is high and volume is little, helps reducing hybrid power bulldozer dynamical system occupation space.
Concrete, in the hybrid power bulldozer dynamical system that the foregoing description provides, external toothing 32 links to each other through threaded connector with the housing of motor 232, makes one-level reducer and motor 232 become a conglomerate.
Preferably; In the hybrid power bulldozer dynamical system that the foregoing description provides; The one-level reducer can also be spur gear reducer 233; As shown in Figure 4, spur gear reducer 233 comprises: the input gear 41 that links to each other with the output shaft of motor 232, with input gear 41 output gear 42 that is meshed and links to each other with the power shaft of final drive 22.Obviously, slow down as long as the one-level reducer can be realized one-level, the present invention does not do concrete qualification to this.
In the hybrid power bulldozer dynamical system that the foregoing description provides, the housing of spur gear reducer 233 and the housing of motor are integral structure.
Preferably, in the hybrid power bulldozer dynamical system that the foregoing description provides, the housing of motor 232 and external toothing 32 link to each other through threaded connector, are convenient to the dismounting and the use of motor deceleration integrating device 23.
In the hybrid power bulldozer dynamical system that the foregoing description provides, final drive 22 adopts the final drive of traditional bulldozer, and the reducer of final drive 22 is the spur gear reducer.The spur gear reducer comprises: first pinion that links to each other with the one-level reducer, second pinion that links to each other through power transmission shaft with the first gear of first pinion, with first gear and with the second largest gear of second pinion, second largest gear links to each other with the power transmission shaft of running gear 21.
The reducer of above-mentioned final drive 22 also can be the reducer that spur gear combines with planetary gear, and it comprises: the pinion that links to each other with the one-level reducer, the sun gear that links to each other through power transmission shaft with the gear wheel of pinion, with gear wheel, the planet carrier that links to each other with the power shaft of running gear 21, gear ring and with the planetary gear of sun gear and gear ring engagement.Obviously, above-mentioned final drive 22 is a kind of concrete kind of drive, as long as the reducer of final drive 22 can be realized double reduction, the present invention does not do concrete qualification to this.
The embodiment of the invention also provides a kind of hybrid power bulldozer, and it has the hybrid power bulldozer dynamical system described in the foregoing description.Because hybrid power bulldozer provided by the invention has the hybrid power bulldozer dynamical system described in the foregoing description; Therefore the hybrid power bulldozer that provides of the embodiment of the invention is with all technique effects of above-mentioned hybrid power bulldozer dynamical system, and this paper repeats no more.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments among this paper.Therefore, the present invention will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (8)
1. a hybrid power bulldozer dynamical system is characterized in that, it has two and is symmetrically distributed and the identical subsystem of structure;
Said subsystem comprises: the output final drive (22) that links to each other with the running gear (21) of this hybrid power bulldozer dynamical system and the motor deceleration integrating device (23) that links to each other with said final drive (22) that are provided with two stage reducer and this two stage reducer;
Said motor deceleration integrating device (23) comprises one-level reducer and motor (232).
2. hybrid power bulldozer dynamical system according to claim 1; It is characterized in that; The output shaft of said motor deceleration integrating device (23) is the power shaft of said final drive (22), and the output shaft of perhaps said motor deceleration integrating device (23) links to each other through universal joint with the power shaft of said final drive (22).
3. hybrid power bulldozer dynamical system according to claim 2 is characterized in that said one-level reducer is planetary reducer (231), and it comprises:
The planet carrier (31) that links to each other with the power shaft of said final drive (22);
The sun gear (34) that links to each other with the output shaft of said motor (232);
The external toothing (32) that links to each other with said motor (232);
Be meshed with said sun gear (34) and said external toothing (32), and be arranged at the planetary gear (33) on the said planet carrier (31).
4. hybrid power bulldozer dynamical system according to claim 3 is characterized in that, the housing of said motor (232) links to each other through threaded connector with said external toothing (32).
5. hybrid power bulldozer dynamical system according to claim 2 is characterized in that said one-level reducer is spur gear reducer (233), and it comprises:
The input gear (41) that links to each other with the output shaft of said motor (232);
Be meshed with said input gear (41), and the output gear (42) that links to each other with the power shaft of said final drive (22).
6. hybrid power bulldozer dynamical system according to claim 5 is characterized in that, the housing of the housing of said motor (232) and said spur gear reducer (233) is an integral structure.
7. according to the described hybrid power bulldozer of claim 1-6 dynamical system, it is characterized in that the reducer of said final drive (22) is the reducer that spur gear reducer or spur gear combine with planetary gear.
8. a hybrid power bulldozer is characterized in that, has any described hybrid power bulldozer dynamical system among the aforesaid right requirement 1-7.
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| CN201110304880.8A CN102505716B (en) | 2011-10-10 | 2011-10-10 | Hybrid bulldozer and power system thereof |
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| CN201110304880.8A CN102505716B (en) | 2011-10-10 | 2011-10-10 | Hybrid bulldozer and power system thereof |
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| CN102505716A true CN102505716A (en) | 2012-06-20 |
| CN102505716B CN102505716B (en) | 2014-12-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107856527A (en) * | 2017-12-07 | 2018-03-30 | 吉林大学 | A kind of motor-driven serial mixed power bull-dozer differential running gear of list |
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| US5473541A (en) * | 1993-07-14 | 1995-12-05 | Kabushiki Kaisha Komatsu Seisakusho | Steering control system for use in a track-laying vehicle |
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| CN107856527B (en) * | 2017-12-07 | 2021-05-25 | 吉林大学 | Single-motor-driven serial hybrid power bulldozer differential traveling device |
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| CN102505716B (en) | 2014-12-10 |
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