CN204296456U - 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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- CN204296456U CN204296456U CN201420752480.2U CN201420752480U CN204296456U CN 204296456 U CN204296456 U CN 204296456U CN 201420752480 U CN201420752480 U CN 201420752480U CN 204296456 U CN204296456 U CN 204296456U
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- gear ring
- loader
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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 utility model discloses a kind of power dividing type hydraulic hybrid power loader power drive system, be made up of driving engine, hydraulic pump/motor, No. two hydraulic pump/motors, hydraulic system, planet row, transmission gear, the first transmission shaft, second driving shaft, mechanical brake, power-transfer clutch, high pressure accumulator, low pressure accumulator and hydraulic control one-way valves.The utility model have employed compact conformation, stable drive planet circular system as power coupling element, achieve the power dividing type transmission of loader; Driving system of the present utility model have employed compound planetary train direction reverser, and only has a power-transfer clutch and a mechanical brake, and be easy to realize automatic control, integration degree is high, can meet loader forward travel and the speed of a motor vehicle requirement of swinging to traveling preferably; The utility model can realize hydraulic stepless speed change, makes engine operation in efficient district, reduces oil consumption, improves discharge.The utility model eliminates turbine transformer, improves transmission system efficiency, reduces loader oil consumption.
Description
Technical field
The utility model relates to a kind of power system of hybrid power loader, particularly a kind of power dividing type hydraulic hybrid power loader power drive system.
Background technology
At present, both at home and abroad the research of hybrid power loader is rested on series system and parallel type system more.Wherein, serial mixed power loader exist repacking cost high, be difficult to the shortcoming realizing industrialization; The corrective action of parallel type hybrid dynamic loader to engine working point is less, and majority still remains turbine transformer in driving system, and energy-saving effect is limited.
Summary of the invention
The purpose of this utility model is to provide a kind of power dividing type hydraulic hybrid power loader power drive system.
The utility model is made up of driving engine, hydraulic pump/motor, No. two hydraulic pump/motors, hydraulic system, planet row, transmission gear, the first transmission shaft, second driving shaft, mechanical brake, power-transfer clutch, high pressure accumulator, low pressure accumulator and hydraulic control one-way valves.Described planet row comprises first planet row, the second planet row and third planet row; The first sun wheel, the first row star-wheel, the first row carrier and the first gear ring are drawn together in described first planet package; Described second planet row comprises the second sun wheel, the second satellite gear, the second pinion carrier and the second gear ring; The 3rd sun wheel, the third line star-wheel, fourth line star-wheel, the third line carrier and the 3rd gear ring are drawn together in described third planet package; Described transmission gear comprises the first gear, the second gear, the 3rd gear, the 4th gear, the 5th gear, the 6th gear and the 7th gear; Described driving engine is connected with the first row carrier by the first transmission shaft, and the 7th gear and the first transmission shaft are by spline joint, and the first gear and the 7th gears meshing, by transmission of power to hydraulic system; A described hydraulic pump/motor is connected with the 6th gear, the 3rd gear and the 6th gears meshing, and the first sun wheel and the 3rd gear are connected; Described No. two hydraulic pump/motors are connected with the 5th gear, the 4th gear and the 5th gears meshing; Described first gear ring and the second gear ring share a gear ring pedestal, and gear ring pedestal is provided with the 4th gear; Described second sun wheel and the 3rd sun wheel are connected by second driving shaft, and the second pinion carrier and the third line carrier are connected; Mechanical brake one end is connected with the third line carrier, and the mechanical brake other end is fixed on vehicle frame; Be connected to power-transfer clutch between described second gear ring and the 3rd gear ring, the second gear is located on the pedestal of the 3rd gear ring; Described high pressure accumulator by hydraulic control one-way valve and a hydraulic pump/motor high pressure oil mouth hydraulic connecting, a hydraulic pump/motor low pressure hydraulic fluid port and low pressure accumulator hydraulic connecting; Described high pressure accumulator and No. two hydraulic pump/motor high pressure oil mouth hydraulic connectings, No. two hydraulic pump/motor low pressure hydraulic fluid ports and low pressure accumulator hydraulic connecting.
Compared with prior art the beneficial effects of the utility model are:
1. the utility model is relative to existing hybrid power system, have employed compact conformation, stable drive planet circular system as power coupling element, achieve the power dividing type transmission of loader.
2. driving system of the present utility model have employed compound planetary train direction reverser, and only have a power-transfer clutch and a mechanical brake, be easy to realize automatic control, integration degree is high, can meet loader forward travel and the speed of a motor vehicle requirement of swinging to traveling preferably.
3. the utility model can realize hydraulic stepless speed change, makes engine operation in efficient district, reduces oil consumption, improves discharge.
4. the utility model eliminates turbine transformer, improves transmission system efficiency, reduces loader oil consumption.
Accompanying drawing explanation
Fig. 1 is structure of the present utility model composition and principle of work schematic diagram.
Fig. 2 is the power transmission line figure of the static start-up mode of driving engine of the present utility model.
Fig. 3 is the power transmission line figure of driving engine of the present utility model driving start-up mode.
Fig. 4 is pure hydraulically powered power transmission line figure of the present utility model.
Fig. 5 is the power transmission line figure of the direct transfer mode of power of the present utility model.
Fig. 6 is the power transmission line figure of power dividing pattern of the present utility model.
Fig. 7 is the associating drive pattern power transmission line figure under high load capacity operating mode of the present utility model.
Fig. 8 is the power transmission line figure of the associating drive pattern under of the present utility model running at high speed most.
Fig. 9 is the power transmission line figure of braking mode of the present utility model.
Detailed description of the invention
Refer to shown in Fig. 1, for embodiment of the present utility model, this embodiment is made up of driving engine 1, hydraulic pump/motor 30, No. two hydraulic pump/motors 26, hydraulic system 3, planet row, transmission gear, the first transmission shaft 2, second driving shaft 18, mechanical brake 19, power-transfer clutch 21, high pressure accumulator 29, low pressure accumulator 27 and hydraulic control one-way valve 28, and described planet row comprises first planet row, the second planet row and third planet row; The first sun wheel 5, the first row star-wheel 6, the first row carrier 8 and the first gear ring 7 are drawn together in described first planet package; Described second planet row comprises the second sun wheel 12, second satellite gear 10, second pinion carrier 11 and the second gear ring 9; The 3rd sun wheel 17, the third line star-wheel 14, fourth line star-wheel 15, the third line carrier 16 and the 3rd gear ring 13 are drawn together in described third planet package; Described transmission gear comprises the first gear 4, 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 driving engine 1 is connected with the first row carrier 8 by the first transmission shaft 2, and the 7th gear 31 and the first transmission shaft 2 are by spline joint, and the first gear 4 engages with the 7th gear 31, by transmission of 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 wheel 5 and the 3rd gear 22 are connected; 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 and the second gear ring 9 share a gear ring pedestal, and gear ring pedestal is provided with the 4th gear 23; Described second sun wheel 12 and the 3rd sun wheel 17 are connected by second driving shaft 18, and the second pinion carrier 11 is connected with the third line carrier 16; Mechanical brake 19 one end is connected with the third line carrier 16, and mechanical brake 19 other end is fixed on vehicle frame; Be connected to power-transfer 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 passes through hydraulic control one-way valve 28 and a hydraulic pump/motor 30 high pressure oil mouth hydraulic connecting, a 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 high pressure 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, mechanical brake 19 is separated, and power-transfer clutch 21 engages, and power is delivered to the second gear 20 through the first gear ring 7, power-transfer clutch 21, the 3rd gear ring 13, is finally delivered to driving wheel, and the second gear 20 is identical with the first gear ring 7 rotary speed direction.When swinging to traveling, mechanical brake stops device 19 and engages, power-transfer clutch 21 is separated, second pinion carrier 11 and the third line carrier 16 are fixed, power is delivered to the second gear 20 through the first gear ring 7, second gear ring 9, second satellite gear 10, second sun wheel 12, second driving shaft 18, the 3rd sun wheel 17, fourth line star-wheel 15, the third line star-wheel 14, the 3rd gear ring 13, finally be delivered to driving wheel, the second gear 20 is contrary with the first gear ring 7 rotary speed direction.Due to loader forward travel with swing to that to run over middle hybrid power system mode of operation similar, therefore for forward travel.
Working process of the present utility model and principle as follows:
1. engine starting pattern
According to the operation conditions of complete machine, engine starting pattern is divided into static startup and driving to start.The common trait of these two kinds of Starting mode is: high pressure accumulator 29 releases energy, a hydraulic pump/motor 30 is with the form work of motor, the pressure energy of hydraulic oil is converted into mechanical energy, power is delivered to driving engine 1 through the 6th gear 25, the 3rd gear 22, first sun wheel 5, the first row star-wheel 6, the first row carrier 8, first transmission shaft 2, and driving engine 1 starts.The difference of two spermotypes is: during static startup, No. two hydraulic pump/motors 26 do not work, and the rotating speed of the first gear ring 7 is zero, and power transmission line as shown in Figure 2; When driving starts, No. two hydraulic pump/motors 26 are with the form work of motor, and the rotating speed of the first gear ring 7 is non-vanishing, and power transmission line as shown in Figure 3.
2. pure hydraulic-driven pattern
Pure hydraulic-driven pattern is mainly used in when high pressure accumulator 29 pressure is higher, the running on the lower load such as loader starting and low speed driving.Under this pattern, high pressure accumulator 29 releases energy, and the pressure energy of hydraulic oil, with the form work of motor, is converted into mechanical energy by No. two hydraulic pump/motors 26, and power is delivered to the first gear ring 7 through the 5th gear 24, the 4th gear 23, finally exports driving wheel to; Driving engine 1 and the first row carrier 8 are fixed, and hydraulic pump/motor 30, the 6th gear 25, the 3rd gear 22 and first sun wheel 5 dally.Under this pattern, loader travels required whole energy from high pressure accumulator 29, and power transmission line as shown in Figure 4.
3. the independent drive pattern of driving engine
The independent drive pattern of driving engine be mainly used in middle load and high pressure accumulator 29 pressure lower time underload travel, according to complete machine operation conditions, the independent drive pattern of driving engine is divided into power directly to transmit and power dividing two spermotype.When loader carries out middle load, when complete machine traveling demand power is in engine high-efficiency district, be the direct transfer mode of power; When loader carries out underload traveling, the minimum power that complete machine road horsepower demand provides in efficient district lower than driving engine, and when high pressure accumulator 29 pressure is lower, be power dividing pattern.
The common trait of this two spermotype is: driving engine 1 works, and power, through the first transmission shaft 2, the first row carrier 8, the first row star-wheel 6 and the first gear ring 7, finally exports driving wheel to; Loader travels required all power and all comes from driving engine 1; 4th gear 23, the 5th gear 24, second hydraulic pump/motor 26 dally.The difference of two spermotypes is: when power directly transmits, and a hydraulic pump/motor 30 does not work, and the power that driving engine 1 exports is all for driving loader to travel, and power transmission line as shown in Figure 5; During power dividing, a hydraulic pump/motor 30 is with the form work of pump, be the pressure energy of hydraulic oil by changes mechanical energy, the power part that driving engine 1 is exported is for driving loader to travel, another part is filled with in high pressure accumulator 29 with the form of the pressure energy of hydraulic oil, now loader is in hydraulic stepless speed change state, and power transmission line as shown in Figure 6.
4. combine drive pattern
Associating drive pattern is mainly used in running at high speed most in spading, the contour load behavior of lifting and conversion work place process.When loader is in the operating mode such as spading, lifting, high pressure accumulator 29 releases energy, a hydraulic pump/motor 30 does not work, No. two hydraulic pump/motors 26 are with the form work of motor, the pressure energy of hydraulic oil is converted into mechanical energy, jointly drive loader with driving engine 1, power transmission line as shown in Figure 7.When loader is run at high speed most, high pressure accumulator 29 releases energy, and the pressure energy of hydraulic oil, all with the form work of motor, is converted into mechanical energy by a hydraulic pump/motor 30 and No. two hydraulic pump/motors 26, jointly drive loader with driving engine 1, power transmission line as shown in Figure 8; Now, a hydraulic pump/motor 30 reverses.
5. braking mode
When the lower and speed of a motor vehicle of high pressure accumulator 29 pressure is higher than certain value, loader can carry out regenerative brake, and No. two hydraulic pump/motors 26 with the form work of pump, and provide braking force, the pressure energy that vehicle energy is converted into hydraulic oil is filled with high pressure accumulator 29, and power transmission line as shown in Figure 9.
It is pointed out that, when No. two hydraulic pump/motors 26 are not enough to provide required lock torque, loader will adopt the coefficient Associated brake pattern of regenerative brake, driving engine anti-dragged brake and friction braking.
Claims (1)
1. a power dividing type hydraulic hybrid power loader power drive system, it is characterized in that: be by driving engine (1), a hydraulic pump/motor (30), No. two hydraulic pump/motors (26), hydraulic system (3), planet row, transmission gear, first transmission shaft (2), second driving shaft (18), mechanical brake (19), power-transfer clutch (21), high pressure accumulator (29), low pressure accumulator (27) and hydraulic control one-way valve (28) composition, described planet row comprises first planet row, second planet row and third planet row, the first sun wheel (5), the first row star-wheel (6), the first row carrier 8 and the first gear ring (7) are drawn together in described first planet package, described second planet row comprises the second sun wheel (12), the second satellite gear (10), the second pinion carrier (11) and the second gear ring (9), the 3rd sun wheel (17), the third line star-wheel (14), fourth line star-wheel (15), the third line carrier (16) and the 3rd gear ring (13) are drawn together in described third planet package, described transmission gear comprises 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 driving engine (1) is connected with the first row carrier 8 by the first transmission shaft (2), 7th gear (31) and the first transmission shaft (2) pass through spline joint, first gear (4) engages, by transmission of power to hydraulic system with the 7th gear (31), a described hydraulic pump/motor (30) is connected with the 6th gear (25), 3rd gear (22) engages with the 6th gear (25), and the first sun wheel (5) and the 3rd gear (22) are connected, 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 wheel (12) and the 3rd sun wheel (17) are connected by second driving shaft (18), and the second pinion carrier (11) and the third line carrier (16) are connected, mechanical brake (19) one end is connected with the third line carrier (16), and mechanical brake (19) other end is fixed on vehicle frame, be connected to power-transfer 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) by hydraulic control one-way valve (28) and hydraulic pump/motor (30) high pressure 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) high pressure 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, mechanical brake (19) is separated, power-transfer clutch (21) engages, power is delivered to the second gear (20) through the first gear ring (7), power-transfer clutch (21), the 3rd gear ring (13), finally be delivered to driving wheel, the second gear (20) is identical with the first gear ring (7) rotary speed direction, when loader swings to traveling, mechanical brake stops device (19) and engages, power-transfer clutch (21) is separated, second pinion carrier (11) and the third line carrier (16) are fixed, power is through the first gear ring (7), second gear ring (9), second satellite gear (10), second sun wheel (12), second driving shaft (18), 3rd sun wheel (17), fourth line star-wheel (15), the third line star-wheel (14), 3rd gear ring (13) is delivered to the second gear (20), finally be delivered to driving 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 |
|---|---|---|---|
| CN201420752480.2U CN204296456U (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 |
|---|---|---|---|
| CN201420752480.2U CN204296456U (en) | 2014-12-02 | 2014-12-02 | Power dividing type hydraulic hybrid power loader power drive system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204296456U true CN204296456U (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420752480.2U Withdrawn - After Issue CN204296456U (en) | 2014-12-02 | 2014-12-02 | Power dividing type hydraulic hybrid power loader power drive system |
Country Status (1)
| Country | Link |
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| CN (1) | CN204296456U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104442371A (en) * | 2014-12-02 | 2015-03-25 | 吉林大学 | Power transmission system of power split hydraulic hybrid loader |
| CN106545637A (en) * | 2016-10-31 | 2017-03-29 | 广西柳工机械股份有限公司 | Power distributes regulating system and loading machine dynamical system |
| CN109443614A (en) * | 2018-10-24 | 2019-03-08 | 重庆长安汽车股份有限公司 | A kind of the torque converter efficiency test macro and method of automatic transmission |
| CN112440732A (en) * | 2019-08-27 | 2021-03-05 | 比亚迪股份有限公司 | Hub reduction gear, hub power assembly and vehicle |
-
2014
- 2014-12-02 CN CN201420752480.2U patent/CN204296456U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104442371A (en) * | 2014-12-02 | 2015-03-25 | 吉林大学 | Power transmission system of power split hydraulic hybrid loader |
| CN104442371B (en) * | 2014-12-02 | 2017-01-04 | 吉林大学 | Power dividing type hydraulic hybrid power loader power drive system |
| CN106545637A (en) * | 2016-10-31 | 2017-03-29 | 广西柳工机械股份有限公司 | Power distributes regulating system and loading machine dynamical system |
| CN109443614A (en) * | 2018-10-24 | 2019-03-08 | 重庆长安汽车股份有限公司 | A kind of the torque converter efficiency test macro and method of automatic transmission |
| CN112440732A (en) * | 2019-08-27 | 2021-03-05 | 比亚迪股份有限公司 | Hub reduction gear, hub power assembly and vehicle |
| 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 |
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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: 20150429 Effective date of abandoning: 20161019 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |