CN201277211Y - Parallel connection type secondary regulation hydraulic hybrid power transmission of loader - Google Patents
Parallel connection type secondary regulation hydraulic hybrid power transmission of loader Download PDFInfo
- Publication number
- CN201277211Y CN201277211Y CNU2008200253749U CN200820025374U CN201277211Y CN 201277211 Y CN201277211 Y CN 201277211Y CN U2008200253749 U CNU2008200253749 U CN U2008200253749U CN 200820025374 U CN200820025374 U CN 200820025374U CN 201277211 Y CN201277211 Y CN 201277211Y
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- Prior art keywords
- hydraulic
- valve
- energy storage
- pressure
- loader
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 25
- 238000004146 energy storage Methods 0.000 claims abstract 18
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 238000011084 recovery Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 1
- 238000009825 accumulation Methods 0.000 description 29
- 239000012530 fluid Substances 0.000 description 16
- 239000000945 filler Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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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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- Fluid-Pressure Circuits (AREA)
- Operation Control Of Excavators (AREA)
Abstract
一种装载机并联式二次调节液压混合动力传动装置，属机械领域，其结构主要由二次元件、变量油缸、电液伺服阀、离合器、齿轮组、减压阀、限压蓄能组件、一个或一个以上的液压蓄能组件等组成，其特征在于二次元件通过离合器、齿轮组与主传动轴并联联接，电液伺服阀与变量油缸做成一体安装在二次元件上，二次元件及电液伺服阀、变量油缸安装在装载机底盘上传动轴的一侧，电液伺服阀通过减压阀与二次元件的高压油口连接，液压蓄能组件、限压蓄能组件依次并联连接在二次元件的高压油口上，液压蓄能组件、限压蓄能组件、减压阀安装在装载机底盘上传动轴的另一侧；本实用新型实现了能量的回收与再利用，提高了储存能量的再利用效果与效率。
A loader parallel secondary adjustment hydraulic hybrid transmission device, belonging to the field of machinery, its structure is mainly composed of secondary components, variable oil cylinders, electro-hydraulic servo valves, clutches, gear sets, pressure reducing valves, pressure limiting energy storage components, Composed of one or more hydraulic energy storage components, etc., it is characterized in that the secondary element is connected in parallel with the main drive shaft through the clutch, the gear set, the electro-hydraulic servo valve and the variable cylinder are integrated and installed on the secondary element, and the secondary element And the electro-hydraulic servo valve and the variable cylinder are installed on one side of the transmission shaft on the loader chassis. The electro-hydraulic servo valve is connected to the high-pressure oil port of the secondary component through the pressure reducing valve. The hydraulic energy storage component and the pressure-limited energy storage component are connected in parallel in turn. Connected to the high-pressure oil port of the secondary element, the hydraulic energy storage component, the pressure-limiting energy storage component, and the pressure reducing valve are installed on the other side of the transmission shaft on the loader chassis; the utility model realizes energy recovery and reuse, and improves The reuse effect and efficiency of stored energy are improved.
Description
Technical field
The utility model relates to a kind of loader hydraulic hybrid transmission device, belongs to mechanical field.
Background technique
Existing loader power transmission system generally is made of motor, gearbox, transmission shaft, ransaxle etc., in the work, because loader rises, brakes frequent, energy consumption is bigger with discharging, if do not reclaim and utilize again in addition, the braking kinetic energy of loader will waste, and not only causes the mechanical braking wearing and tearing, and causes the irrational utilization and the environmental pollution of the energy.
Summary of the invention
In order to overcome the deficiency of existing loader transmission system, the utility model provides a kind of loader hydraulic pressure hybrid transmissions in parallel, by adopting one both to can be used as hydraulic pump works, can be used as oil hydraulic motor work again, can realize hydraulic pressure can and the hydraulic motor/pump (secondary component) changed mutually of mechanical energy and the hydraulic energy-accumulating assembly braking kinetic energy that reclaims and store loader, and in loader starting, acceleration, climbing process, be used, thereby reduced the installed power of motor, reached energy-conservation and purpose environmental protection.
The technical scheme in the invention for solving the technical problem:
The parallel secondary regulation hydraulic hybrid transmissions of a kind of loader mainly is made up of secondary component, reduction valve, variable oil cylinder, electrohydraulic control, clutch, gear train, pressure limiting accumulation of energy assembly and one or more hydraulic energy-accumulating assembly with different pressures setting range etc.; Secondary component is by clutch, gear train and main drive shaft parallel connection, electrohydraulic control and variable oil cylinder are made of one and are installed on the secondary component, secondary component and electrohydraulic control, variable oil cylinder are installed in a side of transmission shaft on the loader chassis, and electrohydraulic control is connected with the high pressure hydraulic fluid port of secondary component by reduction valve; The hydraulic energy-accumulating assembly is made up of hydraulic accumulator, accumulation of energy control valve, stop valve and pressure relay, the oil inlet and outlet of hydraulic accumulator is connected with an end hydraulic fluid port of stop valve, be connected with the filler opening of pressure relay again, the other end hydraulic fluid port of stop valve is connected with the oil outlet of accumulation of energy control valve, and the filler opening of accumulation of energy control valve is connected with the high pressure hydraulic fluid port of secondary component; Pressure limiting accumulation of energy assembly is made up of hydraulic accumulator, accumulation of energy control valve, stop valve and safety valve, the oil inlet and outlet of hydraulic accumulator is connected with an end hydraulic fluid port of stop valve, be connected with the filler opening of safety valve again, the other end hydraulic fluid port of stop valve is connected with the oil outlet of accumulation of energy control valve, and the filler opening of accumulation of energy control valve is connected with the high pressure hydraulic fluid port of secondary component; Hydraulic energy-accumulating assembly and pressure limiting accumulation of energy assembly are connected in parallel on the high pressure hydraulic fluid port of secondary component successively, and hydraulic energy-accumulating assembly, reduction valve are installed in the opposite side of transmission shaft on the loader chassis.
The beneficial effects of the utility model are, have realized the recovery of energy and have utilized, have reduced the installed power of motor; Hydraulic accumulator has higher charge pressure, and utilizing again of stored energy is effective; Can be according to loader operating conditions needs, the utilization again of control stored energy has reduced unnecessary waste, has improved stored energy utilization ratio again; Hydraulic pressure energy density height, output power is big, and bigger starting, braking torque can be provided.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the structural representation of the parallel secondary regulation hydraulic hybrid transmissions of loader.
Fig. 2 is the hydraulic schematic diagram of the parallel secondary regulation hydraulic hybrid transmissions of loader.
1. clutch 2. gear trains 3. secondary components 4. hydraulic energy-accumulating assemblies 5. pressure limiting accumulation of energy assemblies 6. reduction valve 7. variable oil cylinders 8. electrohydraulic controls
Embodiment
The parallel secondary regulation hydraulic hybrid transmissions of a kind of loader mainly is made up of secondary component 3, variable oil cylinder 7, electrohydraulic control 8, clutch 1, gear train 2, pressure limiting accumulation of energy assembly 5, one or more hydraulic energy-accumulating assembly 4 etc.; Secondary component 3 is by clutch 1, gear train 2 and main drive shaft parallel connection, electrohydraulic control 8 is made of one with variable oil cylinder 7 and is installed on the secondary component 3, secondary component 3 and electrohydraulic control 8, variable oil cylinder 7 are installed in a side of transmission shaft on the loader chassis, and electrohydraulic control 8 is connected with the high pressure hydraulic fluid port of secondary component 3 by reduction valve 6; Hydraulic energy-accumulating assembly 4 is made up of hydraulic accumulator 4-4, accumulation of energy control valve 4-1, stop valve 4-2 and pressure relay 4-3, the oil inlet and outlet of hydraulic accumulator 4-4 is connected with the end hydraulic fluid port of stop valve 4-2, filler opening with pressure relay 4-3 is connected again, the other end hydraulic fluid port of stop valve 4-2 is connected with the oil outlet of accumulation of energy control valve 4-1, and the filler opening of accumulation of energy control valve 4-1 is connected with the high pressure hydraulic fluid port of secondary component 3; Pressure limiting accumulation of energy assembly 5 is made up of hydraulic accumulator 5-2, accumulation of energy control valve 5-4, stop valve 5-3 and safety valve 5-1, the oil inlet and outlet of hydraulic accumulator 5-2 is connected with the end hydraulic fluid port of stop valve 5-3, filler opening with safety valve 5-1 is connected again, the other end hydraulic fluid port of stop valve 5-3 is connected with the oil outlet of accumulation of energy control valve 5-4, and the filler opening of accumulation of energy control valve 5-4 is connected with the high pressure hydraulic fluid port of secondary component 3; Hydraulic energy-accumulating assembly 4 is connected in parallel on the high pressure hydraulic fluid port of secondary component 3 successively with pressure limiting accumulation of energy assembly 5; Hydraulic energy-accumulating assembly 4, pressure limiting accumulation of energy assembly 5 and reduction valve 6 are installed in the opposite side of transmission shaft on the loader chassis.
When loader begins to brake, controller sends control signal and gives electrohydraulic control 8, the motion of controlled variable oil cylinder 7, regulate secondary component 3 swashplate angles and size thereof, make secondary component 3 be in the work of oil hydraulic pump operating mode, the clutch 1 that closes, secondary component 3 is under the loader inertia kinetic energy drives, to system's feedback energy.Accumulation of energy control valve 4-1 in the control hydraulic energy-accumulating assembly 4, switch to position, a left side by meta, high pressure oil at first flows to and is stored among the hydraulic accumulator 4-4 of the minimum hydraulic energy-accumulating assembly 4 of setting pressure, when reservoir pressure reaches the setting pressure of pressure relay 4-3, accumulation of energy control valve 4-1 action, switch to meta, stop to this hydraulic energy-accumulating assembly oil-filled; Simultaneously, accumulation of energy control valve 4-1 automatically switches to position, a left side in higher another hydraulic energy-accumulating assembly 4 of control setting pressure, high pressure oil just charges in the hydraulic accumulator of this hydraulic energy-accumulating assembly like this, when reaching the setting charge pressure, stops to this hydraulic energy-accumulating assembly oil-filled; Work down according to this, if the high pressure oil that secondary component 3 is no longer exported high pressure oil or output seldom, the oil storage process just finishes, if secondary component 3 is also constantly exported high pressure oil, just continue in higher hydraulic energy-accumulating assembly 4 of setting pressure and pressure limiting accumulation of energy assembly 5 oil-filled, till the qualification pressure that reaches hydraulic energy-accumulating assembly 5 safety valve 5-1.When the travelling speed of loader dropped to than low value, the driver depressed brake petal, realized braking.When loader needs emergency braking, should depress brake petal immediately without the braking callback course of energy, realize emergency braking.
When the loader starting, quicken, when travelling, controller sends control command and gives electrohydraulic control 8, the motion of controlled variable oil cylinder 7, regulate the swash plate Zero Crossing Point of secondary component 3 and the size of swashplate angle, make it be in the work of oil hydraulic motor operating mode, clutch 1 closes, control accumulation of energy control valve 4-1,5-4, switch to right position by meta, the hydraulic accumulator 4-4 of hydraulic energy-accumulating assembly 4, the high pressure oil that stores among the hydraulic accumulator 5-2 of pressure limiting accumulation of energy assembly 5 just discharges, to secondary component 3 fuel feeding, secondary component 3 drives the main drive shaft rotation by gear train 2, drives the loader operation jointly with motor.In the work, can be according to loader loading mass size, road traffic condition, control the work of one or more hydraulic energy-accumulating assemblies 4 and pressure limiting accumulation of energy assembly 5, little when loading mass, when travelling speed is low, can discharge hydraulic accumulator energy stored in the hydraulic energy-accumulating assembly; Big when loading mass, when travelling speed is high, can discharge hydraulic accumulator energy stored in a plurality of hydraulic energy-accumulating assemblies and the pressure limiting accumulation of energy assembly.
Accumulation of energy control valve 4-1,5-4 can be solenoid directional control valve, electro-hydraulic reversing valve, electrohydraulic control or electro-hydraulic proportional valve.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200253749U CN201277211Y (en) | 2008-06-26 | 2008-06-26 | Parallel connection type secondary regulation hydraulic hybrid power transmission of loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200253749U CN201277211Y (en) | 2008-06-26 | 2008-06-26 | Parallel connection type secondary regulation hydraulic hybrid power transmission of loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201277211Y true CN201277211Y (en) | 2009-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200253749U Expired - Fee Related CN201277211Y (en) | 2008-06-26 | 2008-06-26 | Parallel connection type secondary regulation hydraulic hybrid power transmission of loader |
Country Status (1)
| Country | Link |
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| CN (1) | CN201277211Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390730A (en) * | 2011-07-18 | 2012-03-28 | 曹先杰 | Diesel-electric hybrid conveying loader |
-
2008
- 2008-06-26 CN CNU2008200253749U patent/CN201277211Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390730A (en) * | 2011-07-18 | 2012-03-28 | 曹先杰 | Diesel-electric hybrid conveying loader |
| CN102390730B (en) * | 2011-07-18 | 2013-11-20 | 曹先杰 | Diesel-electric hybrid conveying loader |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090722 Termination date: 20100626 |