CN102505716B - Hybrid bulldozer and power system thereof - Google Patents
Hybrid bulldozer and power system thereof Download PDFInfo
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- CN102505716B CN102505716B CN201110304880.8A CN201110304880A CN102505716B CN 102505716 B CN102505716 B CN 102505716B CN 201110304880 A CN201110304880 A CN 201110304880A CN 102505716 B CN102505716 B CN 102505716B
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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
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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, adopt Technology of Hybrid Electric Vehicle to carry out the effective measures that energy recovery and reuse become Construction Machinery Energy Saving consumption reduction.
Hybrid power system is applied to bulldozer, has produced hybrid power bulldozer, and it can realize the energy-saving and emission-reduction of engineering machinery.
Hybrid power bulldozer: a kind of bulldozer of novel energy-conserving, its walking relies on motor to drive, but not is directed to motor.During machine operation, needed energy source is in the electricity generation system of airborne motor.
Bulldozer when work load is very large, and the needed moment of torsion of one-sided running gear can surpass 50000NM.In hybrid power bulldozer, power transmission line is: motor-generator-motor-running gear.Electrified locomotive motor can directly provide so large moment of torsion at present, but cannot be arranged on bulldozer.The peak torque that conventional motor provides generally, in 1000NM left and right, for this reason, needs to install additional reducer between motor and running gear, and gearratio need reach more than 80 to improve the moment of torsion that is transferred to running gear.
In hybrid power bulldozer, the power of transmission system passes to drive sprocket by motor, and the power of traditional bulldozer passes to drive sprocket by motor through speed changer, central transmission device and final drive, this has structurally determined the structure that hybrid power bulldozer can not be used traditional Bulldozer completely.Therefore, need to design a kind of hybrid power bulldozer dynamical system, the resultant gear ratio of hybrid power bulldozer be reached more than 80 and to improve, be transferred to the moment of torsion of running gear, and use as far as possible the existing layout of traditional bulldozer and part.
Running gear: formed by drive sprocket, guide wheel, thrust wheel, holder sprocket wheel and crawler belt, transmission system is passed to the driving torque on drive sprocket and rotatablely moves and change vehicle operation into and travel required driving force and speed.
Final drive: be the important component part of traditional Bulldozer, integrated two reduction gear and bulldozer drive sprocket, realizing slows down increases the function of square, to meet the demand of walking and various working conditions.
In order to make hybrid power bulldozer can be applied to Practical Project mechanical field, adopt at present single motor scheme.
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 as shown in Figure 1, comprise 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 conglomerate, and this conglomerate is connected with final drive 12, and final drive 12 is connected with running gear 11.
But, in single electric machine mixed power bulldozer dynamical system, reducer is two stage reducer, final drive 12 is provided with two stage reducer, this list electric machine mixed power bulldozer dynamical system adopts level Four to slow down, and makes its structure more complicated, and the space taking is larger, and single motor also needs differential mechanism in the process driving, this further makes the structure of whole bulldozer dynamical system more complicated.
In sum, how to provide a kind of hybrid power bulldozer dynamical system, the space taking to reduce hybrid power bulldozer dynamical system, is current 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 the space that hybrid power bulldozer dynamical system takies.
In order to achieve the above object, the invention provides following technical scheme:
A hybrid power bulldozer dynamical system, it has two subsystems symmetrical and structure is identical;
Described subsystem comprises: be provided with the output of two stage reducer and this two stage reducer and the running gear of this hybrid power bulldozer dynamical system final drive being connected and the decelerating through motor integrating device being connected with described final drive;
Described decelerating through motor integrating device comprises first stage decelerator and motor;
Motor in two subsystems is relatively independent, can control respectively the speed of hybrid power bulldozer both sides.
Preferably, in above-mentioned hybrid power bulldozer dynamical system, the output shaft of described decelerating through motor integrating device is the power shaft of described final drive, or the output shaft of described decelerating through motor integrating device and the power shaft of described final drive are connected by universal joint.
Preferably, in above-mentioned hybrid power bulldozer dynamical system, described first stage decelerator is planetary reducer, and it comprises:
The planet carrier being connected with the power shaft of described final drive;
The sun gear being connected with the output shaft of described motor;
The external toothing being connected with described motor;
Be meshed with described sun gear and described external toothing, and be arranged at the planetary gear on described planet carrier.
Preferably, in above-mentioned hybrid power bulldozer dynamical system, the housing of described motor is threaded connection part with described external toothing and is connected.
Preferably, in above-mentioned hybrid power bulldozer dynamical system, first stage decelerator is spur gear reducer, and it comprises:
The input gear being connected with the output shaft of described motor;
Be meshed with described input gear, and the output gear being connected with the power shaft of described final drive.
Preferably, in above-mentioned hybrid power bulldozer dynamical system, the housing of the housing of described motor and described spur gear reducer is integral type structure.
Preferably, in above-mentioned hybrid power bulldozer dynamical system, the reducer of described 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 providing, the present invention also provides a kind of hybrid power bulldozer, and it has the hybrid power bulldozer dynamical system described in above-mentioned any one.
Hybrid power bulldozer dynamical system provided by the invention, decelerating through motor integrating device is provided with first stage decelerator, final drive is provided with two stage reducer, this hybrid power bulldozer dynamical system has adopted three grades of decelerations, this hybrid power bulldozer dynamical system has two independently motors simultaneously, both can control respectively the speed of both sides, and then have realized electronic differential function, have avoided use differential mechanism.The hybrid power bulldozer dynamical system of slowing down with level Four in 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 the space that hybrid power bulldozer dynamical system takies.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
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 present invention;
The structural representation of the first stage decelerator that Fig. 3 provides for the embodiment of the present 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 present invention.
Because the sub-symmetry system having symmetries of two of the hybrid power bulldozer dynamical system that the embodiment of the present invention provides distribute, and structure is identical, so Fig. 2 and Fig. 4 have only drawn hybrid power bulldozer dynamical system half, i.e. the structural representation of a subsystem.
In upper Fig. 1-4:
Running gear 11, final drive 12, motor differential deceleration integrating device 13, running gear 21, final drive 22, decelerating through motor integrating device 23, planetary reducer 231, motor 232, planet carrier 31, external toothing 32, planetary gear 33, sun gear 34, spur gear reducer 233, input gear 41, output gear 42.
The specific embodiment
For quote and know for the purpose of, now the technical term relating in the present invention is explained as follows:
Hybrid power bulldozer: a kind of bulldozer of novel energy-conserving, its walking relies on motor to drive, but not is directed to motor.During machine operation, needed energy source is in the electricity generation system of airborne motor.
Running gear: formed by drive sprocket, guide wheel, thrust wheel, holder sprocket wheel and crawler belt, transmission system is passed to the driving torque on drive sprocket and rotatablely moves and change vehicle operation into and travel required driving force and speed.
Final drive: be the important component part of traditional Bulldozer, integrated two reduction gear and bulldozer drive sprocket, realizing slows down increases the function of square, to meet the demand of walking and various working conditions.
Universal joint, refers to and utilizes ball-type to connect the mechanical part of realizing the transmission of out-of-alignment power.
The invention provides a kind of hybrid power bulldozer dynamical system, reduced parts, and then reduced the space that hybrid power bulldozer dynamical system takies.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
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 present invention; The structural representation of the first stage decelerator that Fig. 3 provides for the embodiment of the present 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 present invention.
Because two sub-symmetry system having symmetries of the hybrid power bulldozer dynamical system that the embodiment of the present invention provides distribute, and structure is identical, so Fig. 2 and Fig. 4 have only drawn double-motor hybrid bulldozer dynamical system half.
The hybrid power bulldozer dynamical system that the embodiment of the present invention provides, has two subsystems symmetrical and structure is identical; Subsystem comprises: be provided with the final drive 22 that the output of two stage reducer and this two stage reducer and the running gear 21 of this hybrid power bulldozer dynamical system are connected, with the decelerating through motor integrating device 23 being connected with final drive 22; Decelerating through motor integrating device 23 comprises first stage decelerator and motor 232.First stage decelerator and motor 232 carry out integrated design and installation, are relatively independent conglomerates.
The hybrid power bulldozer dynamical system that above-described embodiment provides comprises running gear 21, coupled final drive 22 and decelerating through motor integrating device 23.Power passes to running gear 21 through decelerating through motor integrating device 23 and final drive 22, achieves work.
In above-mentioned hybrid power bulldozer dynamical system, the motor in two subsystems is relatively independent, can control respectively the speed of automobile both sides, and then realize electronic differential function, avoids using differential mechanism.
In above-mentioned hybrid power bulldozer dynamical system, the gearratio of first stage decelerator is 3～6, the speed reducing ratio maximum of final drive 22 can be 27～35, 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, can meet the job requirement of hybrid power bulldozer.
In hybrid power bulldozer dynamical system provided by the invention, decelerating through motor integrating device 23 is provided with first stage decelerator, final drive 22 is provided with two stage reducer, 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 respectively the speed of both sides, and then have realized electronic differential function, have avoided use differential mechanism.The hybrid power bulldozer dynamical system of slowing down with level Four in 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 the space that hybrid power bulldozer dynamical system takies.
Meanwhile, in the hybrid power bulldozer dynamical system that above-described embodiment provides, running gear 21 and final drive 22 are running gear 11 and the final drive 12 in traditional bulldozer, and the two is all applied in practice.Because the running gear 11 in traditional bulldozer and final drive 12 technology are reliable, and have produced in batches, reduced the manufacturing cost of this hybrid power bulldozer dynamical system.And the hybrid power bulldozer dynamical system that above-described embodiment provides, adopts three grades of decelerations, has improved to a certain extent the transmission efficiency of this dynamical system.
In the hybrid power bulldozer dynamical system that above-described embodiment provides, first stage decelerator and motor 232 carry out integrated design and installation, are relatively independent driving deceleration devices.Preferably, the output shaft of decelerating through motor integrating device 23 is the power shaft of final drive 22, and decelerating through motor integrating device 23 is dismounting and use independently, is conducive to versatility and the interchangeability of part, is convenient to the maintenance of system.Certainly, the output shaft of decelerating through motor integrating device 23 also can be connected by universal joint with the power shaft of final drive 22.
In the hybrid power bulldozer dynamical system that above-described embodiment provides, first stage decelerator can be planetary reducer 231, as shown in Figures 2 and 3.Planetary reducer 231 comprises: the planet carrier 31 being connected with the power shaft of final drive 22; The sun gear 34 being connected with the output shaft of motor 232; The external toothing 32 being connected with motor 232; Be meshed with sun gear 34 and external toothing 32, and be arranged at the planetary gear 33 on planet carrier 31.Planetary reducer transmitted power is large, speed ratio is high and volume is little, is conducive to reduce the space that hybrid power bulldozer dynamical system takies.
Concrete, in the hybrid power bulldozer dynamical system that above-described embodiment provides, external toothing 32 is threaded connection part with the housing of motor 232 and is connected, and makes first stage decelerator and motor 232 become a conglomerate.
Preferably, in the hybrid power bulldozer dynamical system that above-described embodiment provides, first stage decelerator can also be spur gear reducer 233, as shown in Figure 4, spur gear reducer 233 comprises: the input gear 41 being connected with the output shaft of motor 232, the output gear 42 that is meshed and is connected with the power shaft of final drive 22 with input gear 41.Obviously, as long as first stage decelerator can be realized primary speed-down, the present invention does not do concrete restriction to this.
In the hybrid power bulldozer dynamical system that above-described embodiment provides, the housing of spur gear reducer 233 and the housing of motor are integral type structure.
Preferably, in the hybrid power bulldozer dynamical system that above-described embodiment provides, the housing of motor 232 is threaded connection part with external toothing 32 and is connected, and is convenient to dismounting and the use of decelerating through motor integrating device 23.
In the hybrid power bulldozer dynamical system that above-described embodiment provides, final drive 22 adopts the final drive of traditional bulldozer, and the reducer of final drive 22 is spur gear reducer.Spur gear reducer comprises: the first pinion being connected with first stage decelerator, the first gear with the first pinion engagement, the second pinion being connected by power transmission shaft with first gear and the second largest gear meshing with the second pinion, second largest gear is connected 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 being connected with first stage decelerator, the gear wheel with pinion engagement, the sun gear being connected by power transmission shaft with gear wheel, the planet carrier being connected with the power shaft of running gear 21, gear ring and the planetary gear meshing with sun gear and gear ring.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 restriction to this.
The embodiment of the present invention also provides a kind of hybrid power bulldozer, and it has the hybrid power bulldozer dynamical system described in above-described embodiment.Because hybrid power bulldozer provided by the invention has the hybrid power bulldozer dynamical system described in above-described embodiment, therefore the hybrid power bulldozer that the embodiment of the present invention provides, with all technique effects of above-mentioned hybrid power bulldozer dynamical system, repeats no more herein.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. a hybrid power bulldozer dynamical system, is characterized in that, it has two subsystems symmetrical and structure is identical;
Described subsystem comprises: be provided with the output of two stage reducer and this two stage reducer and the running gear (21) of this hybrid power bulldozer dynamical system final drive (22) being connected and the decelerating through motor integrating device (23) being connected with described final drive (22);
Described decelerating through motor integrating device (23) comprises first stage decelerator and motor (232);
Motor (232) in two subsystems is relatively independent, can control respectively the speed of hybrid power bulldozer both sides.
2. hybrid power bulldozer dynamical system according to claim 1, it is characterized in that, the output shaft of described decelerating through motor integrating device (23) is the power shaft of described final drive (22), or the output shaft of described decelerating through motor integrating device (23) is connected by universal joint with the power shaft of described final drive (22).
3. hybrid power bulldozer dynamical system according to claim 2, is characterized in that, described first stage decelerator is planetary reducer (231), and it comprises:
The planet carrier (31) being connected with the power shaft of described final drive (22);
The sun gear (34) being connected with the output shaft of described motor (232);
The external toothing (32) being connected with described motor (232);
Be meshed with described sun gear (34) and described external toothing (32), and be arranged at the planetary gear (33) on described planet carrier (31).
4. hybrid power bulldozer dynamical system according to claim 3, is characterized in that, the housing of described motor (232) is threaded connection part with described external toothing (32) and is connected.
5. hybrid power bulldozer dynamical system according to claim 2, is characterized in that, described first stage decelerator is spur gear reducer (233), and it comprises:
The input gear (41) being connected with the output shaft of described motor (232);
Be meshed with described input gear (41), and the output gear (42) being connected with the power shaft of described final drive (22).
6. hybrid power bulldozer dynamical system according to claim 5, is characterized in that, the housing of the housing of described motor (232) and described spur gear reducer (233) is integral type structure.
7. according to the hybrid power bulldozer dynamical system described in claim 1-6, it is characterized in that, the reducer of described 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 the hybrid power bulldozer dynamical system described in any one in the claims 1-7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110304880.8A CN102505716B (en) | 2011-10-10 | 2011-10-10 | Hybrid bulldozer and power system thereof |
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| Application Number | Priority Date | Filing Date | Title |
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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 CN102505716A (en) | 2012-06-20 |
| CN102505716B true CN102505716B (en) | 2014-12-10 |
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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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| US5473541A (en) * | 1993-07-14 | 1995-12-05 | Kabushiki Kaisha Komatsu Seisakusho | Steering control system for use in a track-laying vehicle |
| CN201501287U (en) * | 2009-06-17 | 2010-06-09 | 上海捷能汽车技术有限公司 | Power transmission unit used for hybrid power system of vehicle |
| CN102092271A (en) * | 2009-12-11 | 2011-06-15 | 中国第一汽车集团公司 | Hybrid vehicle power system structure with planetary gear system |
| CN201881875U (en) * | 2010-06-13 | 2011-06-29 | 上海汽车集团股份有限公司 | Double-driving double-control ground hybrid power system |
| CN201922919U (en) * | 2010-11-29 | 2011-08-10 | 上海大郡动力控制技术有限公司 | Hybrid vehicle towing device with built-in coaxial output speed reducer |
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2011
- 2011-10-10 CN CN201110304880.8A patent/CN102505716B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5473541A (en) * | 1993-07-14 | 1995-12-05 | Kabushiki Kaisha Komatsu Seisakusho | Steering control system for use in a track-laying vehicle |
| CN201501287U (en) * | 2009-06-17 | 2010-06-09 | 上海捷能汽车技术有限公司 | Power transmission unit used for hybrid power system of vehicle |
| CN102092271A (en) * | 2009-12-11 | 2011-06-15 | 中国第一汽车集团公司 | Hybrid vehicle power system structure with planetary gear system |
| CN201881875U (en) * | 2010-06-13 | 2011-06-29 | 上海汽车集团股份有限公司 | Double-driving double-control ground hybrid power system |
| CN201922919U (en) * | 2010-11-29 | 2011-08-10 | 上海大郡动力控制技术有限公司 | Hybrid vehicle towing device with built-in coaxial output speed reducer |
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