CN104442371B - Power dividing type hydraulic hybrid power loader power drive system - Google Patents
Power dividing type hydraulic hybrid power loader power drive system Download PDFInfo
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- CN104442371B CN104442371B CN201410727748.1A CN201410727748A CN104442371B CN 104442371 B CN104442371 B CN 104442371B CN 201410727748 A CN201410727748 A CN 201410727748A CN 104442371 B CN104442371 B CN 104442371B
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- gear
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- gear ring
- planet
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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 discloses a kind of power dividing type hydraulic hybrid power loader power drive system, be made up of electromotor, hydraulic pump/motor, No. two hydraulic pump/motors, hydraulic system, planet row, travelling gear, the first power transmission shaft, second driving shaft, lock device, clutch, high pressure accumulator, low pressure accumulator and hydraulic control one-way valve.Present invention employs compact conformation, stable drive planet circular system as power coupling element, it is achieved that the power dividing type transmission of loader；The drive system of the present invention have employed compound planetary train changement, and only one of which clutch and a lock device, it is easy to accomplish automatically controlling, integration degree is high, it is possible to preferably meets loader forward travel and swings to the speed requirement of traveling；The present invention can realize hydraulic stepless speed change, makes electromotor be operated in efficient district, reduces oil consumption, improves discharge.Present invention eliminates fluid torque-converter, improve transmission system efficiency, reduce loader oil consumption.
Description
Technical field
The present invention relates to the dynamical system of a kind of hybrid power loader, particularly to a kind of power dividing type
Hydraulic hybrid power loader power drive system.
Background technology
At present, research to hybrid power loader both at home and abroad rests on series system and parallel system more
On system.Wherein, there is repacking cost height, be difficult to lacking of industrialization in serial mixed power loader
Point；Parallel type hybrid dynamic loader is less to the Accommodation of engine working point, and majority is passing
Still remaining fluid torque-converter in dynamic system, energy-saving effect is limited.
Summary of the invention
It is an object of the invention to provide a kind of power dividing type hydraulic hybrid power loader PWTN
System.
The present invention be by electromotor, hydraulic pump/motor, No. two hydraulic pump/motors, hydraulic system,
Planet row, travelling gear, the first power transmission shaft, second driving shaft, lock device, clutch, high-voltage energy-storage
Device, low pressure accumulator and hydraulic control one-way valve composition.Described planet row includes first planet row, the second planet
Row and third planet are arranged；Described first planet package includes the first sun gear, the first row star-wheel, first planet
Frame and the first gear ring；Described second planet row includes the second sun gear, the second planetary gear, the second planet carrier
With the second gear ring；Described third planet package include the 3rd sun gear, the third line star-wheel, fourth line star-wheel,
The third line carrier and the 3rd gear ring；Described travelling gear include the first gear, the second gear, the 3rd gear,
4th gear, the 5th gear, the 6th gear and the 7th gear；Described electromotor by the first power transmission shaft with
The first row carrier connects, and the 7th gear and the first power transmission shaft are connected by spline, the first gear and the 7th tooth
Wheel engagement, transfers power to hydraulic system；A described hydraulic pump/motor and the 6th gear connect,
3rd gear and the engagement of the 6th gear, the first sun gear and the 3rd gear are connected；Described No. two hydraulic pump/horses
Reach and be connected with the 5th gear, the 4th gear and the engagement of the 5th gear；Described first gear ring and the second gear ring are altogether
With a gear ring pedestal, gear ring pedestal is provided with the 4th gear；Described second sun gear and the 3rd sun gear
Being connected by second driving shaft, the second planet carrier is connected with the third line carrier；Lock device one end and the
Three planet carriers connect, and the lock device other end is fixed on vehicle frame；Described second gear ring and the 3rd gear ring are indirectly
Having clutch, the second gear is located on the pedestal of the 3rd gear ring；Described high pressure accumulator passes through fluid-control one-way
Valve and a hydraulic pump/motor hydraulic oil mouth hydraulic connecting, a hydraulic pump/motor low pressure hydraulic fluid port stores with low pressure
Can device hydraulic connecting；Described high pressure accumulator and No. two hydraulic pump/motor hydraulic oil mouth hydraulic connectings, No. two
Hydraulic pump/motor low pressure hydraulic fluid port and low pressure accumulator hydraulic connecting.
Compared with prior art the invention has the beneficial effects as follows:
1. the present invention is relative to existing hybrid power system, have employed the planet of compact conformation, stable drive
Train is as power coupling element, it is achieved that the power dividing type transmission of loader.
2. the drive system of the present invention have employed compound planetary train changement, and only one of which clutch
Device and a lock device, it is easy to accomplish automatically control, integration degree is high, it is possible to preferably meets and loads
Machine forward travel and the speed requirement swinging to traveling.
3. the present invention can realize hydraulic stepless speed change, makes electromotor be operated in efficient district, reduces oil consumption,
Improve discharge.
4. present invention eliminates fluid torque-converter, improve transmission system efficiency, reduce loader oil consumption.
Accompanying drawing explanation
Fig. 1 is structure composition and the operation principle schematic diagram of the present invention.
Fig. 2 is the power transmission line figure of the static start-up mode of electromotor of the present invention.
Fig. 3 is the power transmission line figure of the electromotor driving start-up mode of the present invention.
Fig. 4 is the pure hydraulically powered power transmission line figure of the present invention.
Fig. 5 is the power transmission line figure of the direct transfer mode of power of the present invention.
Fig. 6 is the power transmission line figure of the power dividing pattern of the present invention.
Fig. 7 is the associating drive pattern power transmission line figure under the high load capacity operating mode of the present invention.
Fig. 8 is the power transmission line figure of the associating drive pattern under the running at high speed most of the present invention.
Fig. 9 is the power transmission line figure of the braking mode of the present invention.
Detailed description of the invention
Referring to shown in Fig. 1, for embodiments of the invention, this embodiment is by 1, hydraulic pressure of electromotor
30, No. two hydraulic pump/motors 26 of pump/motor, hydraulic system 3, planet row, travelling gear, first
Power transmission shaft 2, second driving shaft 18, lock device 19, clutch 21, high pressure accumulator 29, low pressure accumulation of energy
Device 27 and hydraulic control one-way valve 28 form, and described planet row includes first planet row, the second planet row and the
Three planet rows；Described first planet package includes the first sun gear 5, the first row star-wheel 6, the first row carrier 8
With the first gear ring 7；Described second planet row includes second sun gear the 12, second planetary gear the 10, second row
Carrier 11 and the second gear ring 9；Described third planet package include the 3rd sun gear 17, the third line star-wheel 14,
Fourth line star-wheel 15, the third line carrier 16 and the 3rd gear ring 13；Described travelling gear include the first gear 4,
Second gear the 20, the 3rd gear the 22, the 4th gear the 23, the 5th gear the 24, the 6th gear 25 and the 7th
Gear 31；Described electromotor 1 is connected with the first row carrier 8 by the first power transmission shaft 2, the 7th gear 31
Being connected by spline with the first power transmission shaft 2, the first gear 4 engages with the 7th gear 31, is transmitted by power
To hydraulic system；A described hydraulic pump/motor 30 is connected with the 6th gear 25, the 3rd gear 22
Engaging with the 6th gear 25, the first sun gear 5 and the 3rd gear 22 are connected；Described No. two hydraulic pump/horses
Reaching 26 to be connected with the 5th gear 24, the 4th gear 23 engages with the 5th gear 24；Described first gear ring 7
Sharing a gear ring pedestal with the second gear ring 9, gear ring pedestal is provided with the 4th gear 23；Described second too
Sun wheel 12 and the 3rd sun gear 17 pass through second driving shaft 18 and are connected, the second planet carrier 11 and the
Three planet carriers 16 are connected；Lock device 19 one end is connected with the third line carrier 16, lock device 19 other end
It is fixed on vehicle frame；It is connected to clutch 21, the second gear between described second gear ring 9 and the 3rd gear ring 13
On 20 pedestals being located at the 3rd gear ring 13；Described high pressure accumulator 29 is by hydraulic control one-way valve 28 and No. one
Hydraulic pump/motor 30 hydraulic oil mouth hydraulic connecting, a hydraulic pump/motor 30 low pressure hydraulic fluid port and low pressure accumulation of energy
Device 27 hydraulic connecting；Described high pressure accumulator 29 and No. two hydraulic pump/motor 26 hydraulic oil mouth hydraulic connectings,
No. two hydraulic pump/motor 26 low pressure hydraulic fluid ports and low pressure accumulator 27 hydraulic connecting.
During loader forward travel, lock device 19 separates, and clutch 21 engages, power through the first gear ring 7,
Clutch the 21, the 3rd gear ring 13 is delivered to the second gear 20, is eventually transferred to drive wheel, the second tooth
Wheel 20 is identical with the first gear ring 7 rotary speed direction.When swinging to traveling, lock device is stopped device 19 and is engaged, clutch
Device 21 separates, and the second planet carrier 11 and the third line carrier 16 are fixed, and power is through the first gear ring 7, second
Gear ring the 9, second planetary gear the 10, second sun gear 12, second driving shaft 18, the 3rd sun gear 17,
Four planetary gears 15, the third line star-wheel the 14, the 3rd gear ring 13 are delivered to the second gear 20, are eventually transferred to
Driving wheel, the second gear 20 is contrary with the first gear ring 7 rotary speed direction.Due to loader forward travel and
Swing to run over middle hybrid power system mode of operation be similar to, therefore as a example by forward travel.
Work process and the principle of the present invention are as follows:
1. engine start pattern
According to the operation conditions of complete machine, engine start pattern is divided into static startup and driving to start.These are two years old
The common trait of kind of Starting mode is: high pressure accumulator 29 releases energy, hydraulic pump/motor 30 with
The form work of motor, can be converted into mechanical energy by the pressure of hydraulic oil, power through the 6th gear 25, the
Three gear the 22, first sun gears 5, the first row star-wheel 6, the first row carrier the 8, first power transmission shaft 2 transmit
To electromotor 1, electromotor 1 starts.The difference of two spermotypes is: static No. two hydraulic pumps when starting/
Motor 26 does not works, and the rotating speed of the first gear ring 7 is zero, and power transmission line is as shown in Figure 2；Driving is opened
Time dynamic, No. two hydraulic pump/motors 26 work with the form of motor, and the rotating speed of the first gear ring 7 is not zero, power
Transfer route is as shown in Figure 3.
The purest hydraulic-driven pattern
Pure hydraulic-driven pattern is mainly used in when high pressure accumulator 29 pressure is higher, and loader is started to walk and low
The running on the lower load such as speed traveling.Under this pattern, high pressure accumulator 29 releases energy, No. two hydraulic pump/motors
26 work with the form of motor, and the pressure of hydraulic oil can be converted into mechanical energy, power through the 5th gear 24,
4th gear 23 is delivered to the first gear ring 7, and final output is to driving wheel；Electromotor 1 and first planet
Frame 8 is fixed, hydraulic pump/motor the 30, the 6th gear the 25, the 3rd gear 22 and the first sun gear 5
Idle running.Under this pattern, loader travels required all energy from high pressure accumulator 29, power transmission line
As shown in Figure 4.
3. electromotor is operated alone pattern
Electromotor be operated alone pattern be mainly used in middle load and high pressure accumulator 29 pressure relatively low time
Underload travel, according to complete machine operation conditions, electromotor be operated alone pattern be divided into power directly transmit and
Power dividing two spermotype.When loader carries out middle load, and complete machine traveling demand power is in be sent out
During the efficient district of motivation, for the direct transfer mode of power；When loader carries out underload traveling, and complete machine travels
The minimum power that power demand provides in efficient district less than electromotor, and when high pressure accumulator 29 pressure is relatively low,
For power dividing pattern.
The common trait of both subpatterns is: electromotor 1 works, and power is through the first power transmission shaft 2, first
Planet carrier 8, the first row star-wheel 6 and the first gear ring 7, final output is to driving wheel；Loader travels institute
Need whole power both from electromotor 1；4th gear the 23, the 5th gear the 24, second hydraulic pump/motor
26 idle running.The difference of two spermotypes is: when power directly transmits, a hydraulic pump/motor 30 not work
Making, the power of electromotor 1 output is completely used for driving loader to travel, power transmission line such as Fig. 5 institute
Show；During power dividing, a hydraulic pump/motor 30 works with the form of pump, is hydraulic pressure by changes mechanical energy
The pressure energy of oil, the power making electromotor 1 export is a part of for driving loader to travel, another part
Being filled with in high pressure accumulator 29 with the form of the pressure energy of hydraulic oil, now loader is in hydraulic stepless change
Speed state, power transmission line is as shown in Figure 6.
4. associating drive pattern
Associating drive pattern is mainly used in spading, lift contour load behavior and conversion work place during
Run at high speed most.When loader is in the operating mode such as spading, lifting, high pressure accumulator 29 releases energy,
A number hydraulic pump/motor 30 does not works, and No. two hydraulic pump/motors 26 work, by hydraulic pressure with the form of motor
The pressure of oil can be converted into mechanical energy, and electromotor 1 drives loader jointly, power transmission line such as Fig. 7
Shown in.When loader is run at high speed most, high pressure accumulator 29 releases energy, and hydraulic pump/
Motor 30 and No. two hydraulic pump/motors 26 all work with the form of motor, can be converted by the pressure of hydraulic oil
For mechanical energy, and electromotor 1 drives loader jointly, and power transmission line is as shown in Figure 8；Now,
A number hydraulic pump/motor 30 inverts.
5. braking mode
When high pressure accumulator 29 pressure is relatively low and speed is higher than certain value, loader can carry out regenerative braking,
No. two hydraulic pump/motors 26 work with the form of pump, and provide brake force, vehicle energy to be converted into hydraulic oil
Pressure can be filled with high pressure accumulator 29, power transmission line is as shown in Figure 9.
It is pointed out that when No. two hydraulic pump/motors 26 are not enough to provide required braking moment, load
Machine will use regenerative braking, electromotor anti-dragged brake and frictional damping coefficient Associated brake pattern.
Claims (1)
1. a power dividing type hydraulic hybrid power loader power drive system, it is characterized in that: be by electromotor (1), a number hydraulic pump/motor (30), No. two hydraulic pump/motors (26), hydraulic system (3), planet row, travelling gear, first power transmission shaft (2), second driving shaft (18), lock device (19), clutch (21), high pressure accumulator (29), low pressure accumulator (27) and hydraulic control one-way valve (28) composition, described planet row includes that first planet is arranged, second planet row and third planet row；Described first planet package includes the first sun gear (5), the first row star-wheel (6), the first row carrier (8) and the first gear ring (7)；Described second planet row includes the second sun gear (12), the second planetary gear (10), the second planet carrier (11) and the second gear ring (9)；Described third planet package includes the 3rd sun gear (17), the third line star-wheel (14), fourth line star-wheel (15), the third line carrier (16) and the 3rd gear ring (13)；Described travelling gear includes the first gear (4), the second gear (20), the 3rd gear (22), the 4th gear (23), the 5th gear (24), the 6th gear (25) and the 7th gear (31)；Described electromotor (1) is connected with the first row carrier (8) by the first power transmission shaft (2), 7th gear (31) is connected by spline with the first power transmission shaft (2), first gear (4) engages with the 7th gear (31), transfers power to hydraulic system；A described hydraulic pump/motor (30) is connected with the 6th gear (25), and the 3rd gear (22) engages with the 6th gear (25), and the first sun gear (5) is connected with the 3rd gear (22)；Described No. two hydraulic pump/motors (26) are connected with the 5th gear (24), and the 4th gear (23) engages with the 5th gear (24)；Described first gear ring (7) shares a gear ring pedestal with the second gear ring (9), and gear ring pedestal is provided with the 4th gear (23)；Described second sun gear (12) is connected by second driving shaft (18) with the 3rd sun gear (17), and the second planet carrier (11) is connected with the third line carrier (16)；Lock device (19) one end is connected with the third line carrier (16), and lock device (19) other end is fixed on vehicle frame；Being connected to clutch (21) between described second gear ring (9) and the 3rd gear ring (13), the second gear (20) is located on the pedestal of the 3rd gear ring (13)；Described high pressure accumulator (29) is by hydraulic control one-way valve (28) and hydraulic pump/motor (30) hydraulic oil mouth hydraulic connecting, hydraulic pump/motor (30) low pressure hydraulic fluid port and low pressure accumulator (27) hydraulic connecting；Described high pressure accumulator (29) and No. two hydraulic pump/motor (26) hydraulic oil mouth hydraulic connectings, No. two hydraulic pump/motor (26) low pressure hydraulic fluid ports and low pressure accumulator (27) hydraulic connecting；
During loader forward travel, lock device (19) separates, clutch (21) engages, power is delivered to the second gear (20) through the first gear ring (7), clutch (21), the 3rd gear ring (13), being eventually transferred to drive wheel, the second gear (20) is identical with the first gear ring (7) rotary speed direction；When loader swings to traveling, lock device (19) engages, clutch (21) separates, second planet carrier (11) and the third line carrier (16) are fixed, power is through the first gear ring (7), second gear ring (9), second planetary gear (10), second sun gear (12), second driving shaft (18), 3rd sun gear (17), fourth line star-wheel (15), the third line star-wheel (14), 3rd gear ring (13) is delivered to the second gear (20), it is eventually transferred to drive wheel, second gear (20) is contrary with the first gear ring (7) rotary speed direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410727748.1A CN104442371B (en) | 2014-12-02 | 2014-12-02 | Power dividing type hydraulic hybrid power loader power drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410727748.1A CN104442371B (en) | 2014-12-02 | 2014-12-02 | Power dividing type hydraulic hybrid power loader power drive system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104442371A CN104442371A (en) | 2015-03-25 |
| CN104442371B true CN104442371B (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410727748.1A Expired - Fee Related CN104442371B (en) | 2014-12-02 | 2014-12-02 | Power dividing type hydraulic hybrid power loader power drive system |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107953766B (en) * | 2016-10-14 | 2023-08-08 | 宇通客车股份有限公司 | Hybrid power system and vehicle using same |
| CN106891711B (en) * | 2017-03-16 | 2024-01-05 | 吉林大学 | Series-parallel hydraulic hybrid power control system and control method for loader |
| CN112440732B (en) * | 2019-08-27 | 2022-05-13 | 比亚迪股份有限公司 | Hub reduction gear, hub power assembly and vehicle |
| CN113306388B (en) * | 2021-05-10 | 2022-06-21 | 上海中科深江电动车辆有限公司 | Dual-motor electro-hydraulic hybrid driving system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5558175A (en) * | 1994-12-13 | 1996-09-24 | General Motors Corporation | Hybrid power transmission |
| CN102434647A (en) * | 2011-10-13 | 2012-05-02 | 西南交通大学 | Mechanical hydraulic composite continuously variable transmission of engineering vehicle with brake energy recovering function |
| CN104136813A (en) * | 2012-02-28 | 2014-11-05 | 卡特彼勒公司 | Multi-range hydro-mechanical transmission |
| CN204296456U (en) * | 2014-12-02 | 2015-04-29 | 吉林大学 | Power dividing type hydraulic hybrid power loader power drive system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9121492B2 (en) * | 2011-01-12 | 2015-09-01 | Gm Global Technology Operations, Llc | Hybrid transmission arrangement having a motor damper |
| US20130005524A1 (en) * | 2011-07-01 | 2013-01-03 | Waugh William C | Continuously variable transmission |
-
2014
- 2014-12-02 CN CN201410727748.1A patent/CN104442371B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5558175A (en) * | 1994-12-13 | 1996-09-24 | General Motors Corporation | Hybrid power transmission |
| CN102434647A (en) * | 2011-10-13 | 2012-05-02 | 西南交通大学 | Mechanical hydraulic composite continuously variable transmission of engineering vehicle with brake energy recovering function |
| CN104136813A (en) * | 2012-02-28 | 2014-11-05 | 卡特彼勒公司 | Multi-range hydro-mechanical transmission |
| CN204296456U (en) * | 2014-12-02 | 2015-04-29 | 吉林大学 | Power dividing type hydraulic hybrid power loader power drive system |
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| CN104442371A (en) | 2015-03-25 |
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| SE01 | Entry into force of request for substantive examination | ||
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Granted publication date: 20170104 Termination date: 20171202 |