CN201914108U - Electric-transmission bulldozer walking driving device - Google Patents
Electric-transmission bulldozer walking driving device Download PDFInfo
- Publication number
- CN201914108U CN201914108U CN2010206923169U CN201020692316U CN201914108U CN 201914108 U CN201914108 U CN 201914108U CN 2010206923169 U CN2010206923169 U CN 2010206923169U CN 201020692316 U CN201020692316 U CN 201020692316U CN 201914108 U CN201914108 U CN 201914108U
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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
- Y02T10/64—Electric machine technologies in electromobility
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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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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Abstract
The utility model discloses an electric-transmission bulldozer walking driving device, which belongs to the technical field of engineering machinery and comprises an engine, a generator, a power inverter, three motors, three groups of bidirectional clutch assemblies and a differential steering mechanism. Each bidirectional clutch assembly consists of a front clutch and a rear clutch, an output shaft of each motor is connected with an input shaft of the corresponding bidirectional clutch, the bidirectional clutch assemblies are connected with the differential steering mechanism, and the motors are connected with the generator. The electric-transmission bulldozer walking driving device realizes power distribution during linear walking and turning by the aid of variable-frequency driving technology and control of combination and separation of the bidirectional clutches, and is fewer in components, compact in structure, high in transmission efficiency, simple in control and low in manufacturing cost.
Description
Technical field
The utility model belongs to technical field of engineering machinery, is specifically related to a kind of new-type electric tramsmission bulldozer travel driving unit, and it adopts three groups of bidirectional clutches, utilizes frequency conversion drive and control technology to realize the continuous turning of differential screw and steering device.
Background technology
In existing electric tramsmission bulldozer travel driving system, general travel driving system is generally finished jointly by two three phase alternating current motors and a HM Hydraulic Motor, and by two motor-driven, HM Hydraulic Motor is not worked this moment when the bulldozer straight line moving.When turning, drive HM Hydraulic Motor with hydraulic efficiency pressure system and carry out differential steering.
And self shortcoming is arranged in the above-mentioned travel driving system.Use hydraulic efficiency pressure system and HM Hydraulic Motor to turn to, the cost of complete machine is increased, it is complicated that structure becomes, and is unfavorable for applying of electric tramsmission bulldozer.HM Hydraulic Motor exists many shortcomings in real work.The first, the potential faults of hydraulic pressure be difficult for to find, so that working environment requires is high, can not be in overload and extreme environment work, otherwise damage easily.The second, the use cost of HM Hydraulic Motor is higher, comprises the cost of motor itself and the cost of maintenance etc., and its maintenance cost improves along with the degree of precision of motor thereupon.The 3rd, in load changing, the transmitting ratio instability can cause walking arrangement to occur impact load at work thus, influences service life.Weak points such as also there is leakage of oil in HM Hydraulic Motor in addition, and the serviceability temperature influence is bigger.So in a lot of operating modes and be not suitable for using HM Hydraulic Motor.
Summary of the invention
The purpose of this utility model is: at higher this problem of hydraulic system structure more complicated, cost of electric tramsmission bulldozer use.Now adopt a kind of new walking driver module, promptly three groups of double-clutchs are controlled straight-line travelling and turning, adopt frequency conversion drive and control technology, replace the power input of hydraulic efficiency pressure system and HM Hydraulic Motor, be used for driving the Power Train of bulldozer, thereby make bulldozer can carry out continuous turning.
Above-mentioned purpose of the present utility model is achieved through the following technical solutions, and accompanying drawings is as follows:
The utility model is by driving engine 7, electrical generator 6, power inverter 5, electrical motor, the bidirectional clutch assembly, differential screw and steering device is formed, electrical motor wherein is three, the bidirectional clutch assembly is three groups, the electrical motor 4 in three electrical motors wherein, power inverter 5, electrical generator 6 and driving engine 7 coupled in series, first group of bidirectional clutch assembly is by gear 1, front clutch A, axle I 2, back power-transfer clutch B, gear 3 and electrical motor 4 are formed, its axis I 2 respectively with power-transfer clutch A, power-transfer clutch B connects firmly, and the right-hand member of axle I 2 connects with electrical motor 4, axle II 13 in the differential screw and steering device is parallel to an I 2, sun wheel 19, sun wheel 15 and sun wheel 8 all are fixed on the II 13; First group of bidirectional clutch assembly controlled the combination of front clutch A and back power-transfer clutch B respectively by control system or separated, when front clutch A in conjunction with the time, gear 1 and planetary ring gear 22 engagements, this moment, back power-transfer clutch B was in released state, gear 3 separates with pinion carrier 14, when front clutch A separates, back power-transfer clutch B in conjunction with the time, gear 3 and pinion carrier 14 engagements; Second and third group bidirectional clutch assembly connects with other two electrical motors respectively.
The arrangement of three groups of bidirectional clutch assemblies is: arrange around axle II 13 circumferential 120 degree; Gear 1, gear 101 and gear 102 circumferential 120 degree arrange that all the external tooth with planetary ring gear 22 meshes, and gear 3, gear 31 and gear 32 circumferential 120 degree are arranged, all with pinion carrier 14 engagements; Front clutch A, front clutch A1, front clutch A2 arrange that around axle II 13 circumferential 120 degree back power-transfer clutch B, front clutch B1, front clutch B2 arrange around axle II 13 circumferential 120 degree.
Every group of bidirectional clutch, illustrate such as getting first group of bidirectional clutch, it links to each other with one of them electrical motor, bidirectional clutch is made up of front clutch A, back power-transfer clutch B, control combination or the separation of front clutch A, back power-transfer clutch B respectively by clutch actuating mechanism, when front clutch A in conjunction with the time, gear 1 is to planetary ring gear 22 transferring power, this moment, back power-transfer clutch B was in released state, be gear 3 not to pinion carrier 14 transferring power, in like manner, when front clutch A separates, back power-transfer clutch B in conjunction with the time, gear 3 is to pinion carrier 14 transferring power.
Get first group of bidirectional clutch assembly and illustrate, be made up of gear 1, front clutch A, axle 2, back power-transfer clutch B, gear 3, electrical motor 4, the arrangement of every group of such bidirectional clutch assembly is: arrange three groups around axle 13 circumferential 120 degree.Can utilize frequency conversion drive and control technology to be straight-line travelling or turning reasonable distribution power like this, simultaneously can also carry out continuous turning, promptly Turning radius from zero to infinity.
When the bulldozer straight-line travelling, front clutch A, A1, the A2 of bidirectional clutch must be in released state, the planetary ring gear 22 that is meshed with gear 1,101,102 must be fixing, then power-transfer clutch B, B1, B2 are in bonding state, this moment, gear 3,31,32 and pinion carrier 14 engagements could guarantee that like this left end output shaft 20 of differential screw and steering device is identical with the speed of right-hand member output shaft 9.So the speed of left end output shaft 20 and right-hand member output shaft 9 is only identical, be by the parameter decision of differential screw and steering device.The speed of the rotating speed decision straight-line travelling of electrical motor 4, the power of straight-line travelling is determined by the number of the electrical motor of working.When the bulldozer turning driving, according to the difference of Turning radius, by the distribution that turns to control module decision power and the rotation direction of electrical motor 4, the combination of promptly controlling three groups of bidirectional clutches with separate.Such as realizing pivot stud, can make front clutch A, A1, A2 combination, back power-transfer clutch B, B1, B2 separate, and power has been passed to planetary ring gear 22 like this, and pinion carrier 14 unpowered inputs.
The beneficial effects of the utility model are:
(1) cost is low.Because this module has replaced complicated hydraulic efficiency pressure system and HM Hydraulic Motor, adopt three groups of double-clutchs to drive differential screw and steering device, realize straight-line travelling and turning.
(2) need not gearshift.Combination by control clutch with separate simple and compact structure.
(3) driving efficiency height.Because the transmission adopted mechanical drive, so has the highest driving efficiency.
(4) control is simple.Since the combination of just operating bidirectional clutch with separate, so control system is simple and easy to realize.
Description of drawings
Fig. 1 is an electric tramsmission bulldozer travel driving unit structural representation
Fig. 2 is one group of bidirectional clutch assembly structure scheme drawing
Fig. 3 is the right elevation of front clutch
Fig. 4 is the right elevation of back power-transfer clutch
Wherein: clutch 1. gears 2. axle I 3. gears 4. motor 5. power inverters 6. generators 7. engines 8. sun gears 9. right-hand member output shafts 10. planet carriers 11. planetary gears 12. planetary ring gears 13. axle II 14. planet carriers 15. sun gears 16. planetary gears 17. planetary ring gears 18. planetary gears 19. sun gears 20. left end output shafts 21. planet carriers 22. planetary ring gears 31. gears 32. gears 101. gears 102. gears 181. planetary gears 182. planetary gears behind the clutch B2. behind the clutch B1. behind the A. front clutch A1. front clutch A2. front clutch B.
The specific embodiment
The utility model is by driving engine 7, electrical generator 6, power inverter 5, electrical motor, the bidirectional clutch assembly, differential screw and steering device is formed, wherein electrical motor is three, the bidirectional clutch assembly is three groups, electrical motor 4, power inverter 5, electrical generator 6 and driving engine 7 coupled in series, first group of bidirectional clutch assembly is by gear 1, front clutch A, axle I 2, back power-transfer clutch B, gear 3 and electrical motor 4 are formed, the axle I 2 respectively with power-transfer clutch A, power-transfer clutch B connects firmly, and the right-hand member of axle I 2 is connected with electrical motor 4, axle II 13 is parallel to an I 2, sun wheel 19, sun wheel 15 and sun wheel 8 all are fixed on the II 13; First group of bidirectional clutch assembly controlled the combination of front clutch A and back power-transfer clutch B respectively by control system or separated, when front clutch A in conjunction with the time, gear 1 and planetary ring gear 22 engagements, this moment, back power-transfer clutch B was in released state, gear 3 separates with pinion carrier 14, when front clutch A separates, back power-transfer clutch B in conjunction with the time, gear 3 and pinion carrier 14 engagements; Second and third group bidirectional clutch assembly is connected with other two electrical motors respectively.
The arrangement of three groups of bidirectional clutch assemblies is: arrange around axle II 13 circumferential 120 degree; Gear 1, gear 101 and gear 102 circumferential 120 degree arrange that all the external tooth with planetary ring gear 22 meshes, and gear 3, gear 31 and gear 32 circumferential 120 degree are arranged, all with pinion carrier 14 engagements; Front clutch A, front clutch A1, front clutch A2 arrange that around axle II 13 circumferential 120 degree back power-transfer clutch B, front clutch B1, front clutch B2 arrange around axle II 13 circumferential 120 degree.
Electric tramsmission bulldozer travel driving unit has used three groups of bidirectional clutches, utilizes frequency conversion drive and control technology to realize the continuous turning of differential screw and steering device, and promptly this mechanism's Turning radius can be from zero to infinite.
In electric tramsmission bulldozer driving process, we are divided into following several running state with the bulldozer driving cycle:
1. straight-line travelling state: the power that sends from driving engine 7 directly sends electric power by electrical generator 6, through power inverter 5 conversions, pass on the electrical motor 4, size according to the power of needs in the straight-line travelling, the quantity that needs to use electrical motor by the control unit decision, the turning to of forward-reverse decision electrical motor by whether is by the urgency of the rotating speed decision bulldozer forward-reverse of electrical motor or slow.When straight-line travelling, back power-transfer clutch B combination, front clutch A separates, and this moment, power was passed on the pinion carrier 14 by gear 3, and the planetary ring gear 22 of this moment is fixed, and could guarantee that like this left end output shaft 20, right-hand member output shaft 9 advance with identical speed or retreat.Determine the number of required electrical motor according to the size of straight-line travelling required drive.
2. pivot stud motoring condition: different with the straight-line travelling state is, after power is exported from electrical motor 4, this moment, back power-transfer clutch B separated, front clutch A combination, power is input to planetary ring gear 22 from gear 1, and gear 3 is in light condition, and power passes to planetary ring gear 22 by gear 1, and divide two-way to satellite gear 18 backs: a route pinion carrier (low speed high torque) is to left end output shaft 20; Pinion carrier 11 to axle 13, to sun wheel 8, is passed to through sun wheel 19 (the little torque of high speed, its hand of rotation is opposite with planetary ring gear) in another road, to 9 outputs of right-hand member output shaft.Control unit is according to slow quantity and the velocity of rotation that decides needs to use electrical motor of the urgency of turning process.
3. turning driving state: this state is between straight-line travelling state and the pivot stud state.Three electrical motors of this kind state all are in the work.(1) when slow the turning, control unit makes a front clutch A in first group of bidirectional clutch be in bonding state, and another back power-transfer clutch B is in released state; Two front clutch A1, A2 of other two groups of bidirectional clutches are in released state, and power-transfer clutch B1, B2 are in bonding state after two.The output speed of one side is increased, and the output speed of opposite side reduces.(2) when sharply turning, control unit makes two front clutch A1, A2 in two groups of bidirectional clutches be in bonding state, and in addition power-transfer clutch B1, B2 are in released state after two; The front clutch A of other first group of bidirectional clutch is in released state, and back power-transfer clutch B is in bonding state.Can make the output speed of a side continue to increase like this, the output speed of opposite side continues to reduce.
Claims (2)
1. electric tramsmission bulldozer travel driving unit, by driving engine (7), electrical generator (6), power inverter (5), electrical motor, the bidirectional clutch assembly, differential screw and steering device is formed, it is characterized in that described electrical motor is three, the bidirectional clutch assembly is three groups, the electrical motor (4) in three electrical motors wherein, power inverter (5), electrical generator (6) and driving engine (7) coupled in series, first group of bidirectional clutch assembly is by gear (1), front clutch (A), axle I (2), back power-transfer clutch (B), gear (3) and electrical motor (4) are formed, its axis I (2) respectively with power-transfer clutch (A), power-transfer clutch (B) connects firmly, and the right-hand member of axle I (2) connects with electrical motor (4), axle II (13) in the differential screw and steering device is parallel to an I (2), sun wheel (19), sun wheel (15) and sun wheel (8) all are fixed on the II (13); First group of bidirectional clutch assembly controlled the combination of front clutch (A) and back power-transfer clutch (B) respectively by control system or separated, when front clutch (A) in conjunction with the time, gear (1) and planetary ring gear (22) engagement, back power-transfer clutch this moment (B) is in released state, gear (3) separates with pinion carrier (14), when front clutch (A) separates, back power-transfer clutch (B) in conjunction with the time, the engagement of gear (3) and pinion carrier (14); Second and third group bidirectional clutch assembly connects with other two electrical motors respectively.
2. by the described electric tramsmission bulldozer of claim 1 travel driving unit, it is characterized in that the arrangement of described three groups of bidirectional clutch assemblies is: arrange around circumferential 120 degree of axle II (13); Circumferential 120 degree of gear (1), gear (101) and gear (102) arrange that all the external tooth with planetary ring gear (22) meshes, and circumferential 120 degree of gear (3), gear (31) and gear (32) are arranged, all mesh with pinion carrier (14); Front clutch (A), front clutch (A1), front clutch (A2) arrange that around circumferential 120 degree of axle II (13) back power-transfer clutch (B), front clutch (B1), front clutch (B2) are arranged around circumferential 120 degree of axle II (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206923169U CN201914108U (en) | 2010-12-31 | 2010-12-31 | Electric-transmission bulldozer walking driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206923169U CN201914108U (en) | 2010-12-31 | 2010-12-31 | Electric-transmission bulldozer walking driving device |
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| Publication Number | Publication Date |
|---|---|
| CN201914108U true CN201914108U (en) | 2011-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010206923169U Expired - Lifetime CN201914108U (en) | 2010-12-31 | 2010-12-31 | Electric-transmission bulldozer walking driving device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069702A (en) * | 2010-12-31 | 2011-05-25 | 吉林大学 | Electric drive earthmover travelling driving device |
| CN104763804A (en) * | 2015-04-22 | 2015-07-08 | 福建工程学院 | Centralized drive type pure electric vehicle power system |
| CN104943745A (en) * | 2015-06-26 | 2015-09-30 | 湖南农夫机电有限公司 | Crawler belt self-walking type agricultural machine hydraulic control differential steering system |
| CN107826167A (en) * | 2017-12-07 | 2018-03-23 | 吉林大学 | A kind of dual drive crawler belt differential walking mechanism |
-
2010
- 2010-12-31 CN CN2010206923169U patent/CN201914108U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069702A (en) * | 2010-12-31 | 2011-05-25 | 吉林大学 | Electric drive earthmover travelling driving device |
| CN102069702B (en) * | 2010-12-31 | 2013-04-10 | 吉林大学 | Electric drive earthmover travelling driving device |
| CN104763804A (en) * | 2015-04-22 | 2015-07-08 | 福建工程学院 | Centralized drive type pure electric vehicle power system |
| CN104763804B (en) * | 2015-04-22 | 2017-03-22 | 福建工程学院 | Centralized drive type pure electric vehicle power system |
| CN104943745A (en) * | 2015-06-26 | 2015-09-30 | 湖南农夫机电有限公司 | Crawler belt self-walking type agricultural machine hydraulic control differential steering system |
| CN104943745B (en) * | 2015-06-26 | 2017-07-18 | 湖南农夫机电有限公司 | Caterpillar band self-propelled farm machinery hydraulic control differential steering system |
| CN107826167A (en) * | 2017-12-07 | 2018-03-23 | 吉林大学 | A kind of dual drive crawler belt differential walking mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110803 Effective date of abandoning: 20130410 |
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| RGAV | Abandon patent right to avoid regrant |