CN103982472B - A kind of load isolation formula fluid integrated power system - Google Patents
A kind of load isolation formula fluid integrated power system Download PDFInfo
- Publication number
- CN103982472B CN103982472B CN201410228813.6A CN201410228813A CN103982472B CN 103982472 B CN103982472 B CN 103982472B CN 201410228813 A CN201410228813 A CN 201410228813A CN 103982472 B CN103982472 B CN 103982472B
- Authority
- CN
- China
- Prior art keywords
- accumulator arrangements
- energy
- hydraulic
- detection sensor
- accumulator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention belongs to technical field of power equipment, relate to a kind of load isolation formula fluid integrated power system, controller ceases with each parts telecommunications respectively and is connected, internal-combustion engine is connected with single planetary row, single planetary row is connected with mechanical energy feedback system, one end of oil hydraulic pump is connected with single planetary row, and the other end is connected with hydraulic transformer, hydraulic transformer is connected with outside and fills energy interface; First direction control valve is connected with oil hydraulic pump, hydraulic transformer, the first Accumulator arrangements and the second Accumulator arrangements respectively; Second direction control valve regulates and distributes device with the first Accumulator arrangements, the second Accumulator arrangements and hydraulic power respectively and is connected; First Accumulator arrangements connects and is shaped with the first press detection sensor, the second Accumulator arrangements connects and is shaped with the second press detection sensor; Its structure is simple, and scientific in principle, cost is low, environmental friendliness, less energy consumption, and working efficiency is high, and energy regenerating utilization ratio is high.
Description
Technical field:
The invention belongs to technical field of power equipment, relate to a kind of load isolation formula fluid integrated power system, the hydraulic power such as engineering machinery and various hydraulic drive vehicles demand occasion can be widely used in.
Background technique:
Internal combustion engine drive hydraulic power system is widely used in motor vehicle and engineering machinery, and when adopting this power source of internal combustion engine drive hydraulic power system, the pressure of oil hydraulic pump and flow must adapt to the change of load, thus have a strong impact on the operating mode of internal-combustion engine; Meanwhile, because application machine load variations scope is large, power demand is uneven, causes the rated power of the internal-combustion engine matched large; In addition, in the such as excavator periodic duty of some application machine, Brake Energy (hydraulic energy, mechanical energy) can not be recycled, waste is very serious, thus causes existing internal combustion engine drive hydraulic power system fuel consume higher, and working efficiency is the problem such as on the low side generally.Therefore, seek to design a kind of brand-new load isolation formula fluid integrated power system, internal-combustion engine and load system work are isolated, makes internal combustion engine in optimum condition, effective recycling regenerating braking energy, realizes energy-saving and emission-reduction.
Summary of the invention:
The object of the invention is to the shortcoming overcoming prior art existence, seeking to design provides a kind of load isolation formula fluid integrated power system as fluid pressure drive device hydraulic power supply, internal-combustion engine and load system work are isolated, realize internal combustion engine in optimum condition, effective recycling hydraulic pressure or mechanical regenerative braking energy, also can be undertaken filling energy by ground pump station, realize energy-saving and emission-reduction.
To achieve these goals, agent structure of the present invention comprises internal-combustion engine, single planetary row, mechanical energy feedback system, oil hydraulic pump, hydraulic transformer, first direction control valve, the first Accumulator arrangements, the second Accumulator arrangements, the first press detection sensor, the second press detection sensor, controller, second direction control valve, hydraulic power regulates and distributes device and energy interface is filled in outside; Controller respectively parts telecommunications each with other ceases and is connected, internal-combustion engine is connected with single planetary row, and single planetary row is connected with mechanical energy feedback system, and one end of oil hydraulic pump is connected with single planetary row, the other end is connected with hydraulic transformer, hydraulic transformer is connected with outside and fills energy interface; First direction control valve is connected with oil hydraulic pump, hydraulic transformer, the first Accumulator arrangements and the second Accumulator arrangements respectively; Second direction control valve regulates and distributes device with the first Accumulator arrangements, the second Accumulator arrangements and hydraulic power respectively and is connected; First Accumulator arrangements connects and is shaped with the first press detection sensor, second Accumulator arrangements connects and is shaped with the second press detection sensor, first press detection sensor and the second press detection sensor detect pressure signal and the load signal of the first Accumulator arrangements and the second Accumulator arrangements respectively, the pressure signal that controller process first press detection sensor and the second press detection sensor detect and load signal, and internal combustion engine and other each parts send control signal, control stored energy or the release of the first Accumulator arrangements and the second Accumulator arrangements; Internal-combustion engine fills energy by single planetary row driving oil hydraulic pump to the first Accumulator arrangements and the second Accumulator arrangements, or can fill energy to the first Accumulator arrangements and the second Accumulator arrangements by the hydraulic pressure of external ground pump station or the generation of hydraulic regenerative braking energy-recuperation system by interface by outside filling; First Accumulator arrangements and the independent outwards output hydraulic pressure power of the second Accumulator arrangements do work to load system, the process of output hydraulic pressure power is exactly the process that the first Accumulator arrangements and the second Accumulator arrangements release energy, system dynamic performance depends on the Energy Release of the first Accumulator arrangements and the second Accumulator arrangements, the process that releases energy and loading demand adapt, and regulate and distribute device realize mating of Power output and bearing power by hydraulic power; Internal-combustion engine to the first Accumulator arrangements and the second Accumulator arrangements fill can time isolate with external load system work, its work is not subject to load effect, and constant operation, in optimum condition, realizes significantly energy-saving and emission-reduction; The charge and discharge energy process of the first Accumulator arrangements and the second Accumulator arrangements hockets, and internal-combustion engine is only for needing the first Accumulator arrangements or the second Accumulator arrangements work of filling energy, and internal-combustion engine is matched according to the average load power of external load.
The present invention compared with prior art, internal-combustion engine and load isolation, and select internal-combustion engine according to average load power, the internal-combustion engine rated power matched with load system reduces greatly; Internal-combustion engine fills energy process constant operation in optimum condition to accumulator, realizes significantly energy-saving and emission-reduction; System can directly recycling load system regenerative braking produce machinery or hydraulic energy, the capacity usage ratio of further raising system; System also can utilize outside pumping plant to fill energy, emissions reduction; Its structure is simple, and scientific in principle, cost is low, environmental friendliness, less energy consumption, and working efficiency is high, and energy regenerating utilization ratio is high.
Accompanying drawing illustrates:
Fig. 1 is agent structure principle schematic of the present invention.
Fig. 2 is the principle sketch of the present invention as the full hydraulic excavator of hydraulic power supply, wherein 12 is load isolation formula fluid integrated power system, 13 is full hydraulic excavator hydraulic braking sytem, and 14 is full hydraulic excavator hydraulic system, and 15 is full hydraulic excavator mechanical braking sytem.
Embodiment:
Below by embodiment, also the invention will be further described by reference to the accompanying drawings.
Embodiment 1:
The agent structure of the present embodiment comprises internal-combustion engine 1, single planetary row 2, mechanical energy feedback system 3, oil hydraulic pump 4, hydraulic transformer 5, first direction control valve 6, first Accumulator arrangements 7A, the second Accumulator arrangements 7B, the first press detection sensor 8A, the second press detection sensor 8B, controller 9, second direction control valve 10, hydraulic power regulate and distribute device 11 and fill can interface 12 in outside, controller 9 respectively parts telecommunications each with other ceases and is connected, internal-combustion engine 1 is connected with single planetary row 2, and single planetary row 2 is connected with mechanical energy feedback system 3, and one end of oil hydraulic pump 4 is connected with single planetary row 2, the other end is connected with hydraulic transformer 5, hydraulic transformer 5 is connected with outside and fills energy interface 12, first direction control valve 6 is connected with oil hydraulic pump 4, hydraulic transformer 5, first Accumulator arrangements 7A and the second Accumulator arrangements 7B respectively, second direction control valve 10 regulates and distributes device 11 with the first Accumulator arrangements 7A, the second Accumulator arrangements 7B and hydraulic power respectively and is connected, on first Accumulator arrangements 7A, connection is shaped with the first press detection sensor 8A, on second Accumulator arrangements 7B, connection is shaped with the second press detection sensor 8B, first press detection sensor 8A and the second press detection sensor 8B detects pressure signal and the load signal of the first Accumulator arrangements 7A and the second Accumulator arrangements 7B respectively, controller 9 processes the pressure signal and load signal that the first press detection sensor 8A and the second press detection sensor 8B detects, and internal combustion engine 1 and other each parts send control signal, control stored energy or the release of the first Accumulator arrangements 7A and the second Accumulator arrangements 7B, internal-combustion engine 1 drives oil hydraulic pump 3 to fill energy to the first Accumulator arrangements 7A and the second Accumulator arrangements 7B by single planetary row 2, or can fill energy to the first Accumulator arrangements 7A and the second Accumulator arrangements 7B by the hydraulic pressure of external ground pump station or the generation of hydraulic regenerative braking energy-recuperation system by interface 12 by outside filling, first Accumulator arrangements 7A and the second Accumulator arrangements 7B is independent, and outwards output hydraulic pressure power does work to load system, the process of output hydraulic pressure power is exactly the process that the first Accumulator arrangements 7A and the second Accumulator arrangements 7B release energy, system dynamic performance depends on the Energy Release of the first Accumulator arrangements 7A and the second Accumulator arrangements 7B, the process that releases energy and loading demand adapt, and regulate and distribute device 12 realize mating of Power output and bearing power by hydraulic power, internal-combustion engine 1 to the first Accumulator arrangements 7A and the second Accumulator arrangements 7B fill can time isolate with external load system work, its work is not subject to load effect, and constant operation, in optimum condition, realizes significantly energy-saving and emission-reduction, the charge and discharge energy process of the first Accumulator arrangements 7A and the second Accumulator arrangements 7B hockets, internal-combustion engine 1 only for need fill can the first Accumulator arrangements 7A or the second Accumulator arrangements 7B work, internal-combustion engine 1 is matched according to the average load power of external load.
The specific implementation process of the present embodiment is: controller 9 is responsible for each Accumulator arrangements pressure signal and the load signal of process first press detection sensor 8A and the second press detection sensor 8B detection, and internal combustion engine 1 and each element send control signal, control stored energy or the release of the first Accumulator arrangements 7A and the second Accumulator arrangements 7B, Accumulator arrangements or be set to many groups; Generally comprise following operating mode:
(1), Accumulator arrangements fills energy: the first Accumulator arrangements 7A and the second Accumulator arrangements 7B hockets and fills energy, the Accumulator arrangements of external acting can not carry out filling energy simultaneously, when second Accumulator arrangements 7B fills energy, first direction control valve 6 is in bottom, second direction control valve 10 is in upper, internal-combustion engine 1 is connected with the sun gear of single planetary row 2, oil hydraulic pump 4 is connected with the planet carrier of single planetary row 2, the gear ring of single planetary row 2 is fixed, internal-combustion engine 1 drives oil hydraulic pump 4, controller 9 controlling combustion engine 1 keeps constant power output, and constant operation is in optimum condition; The pressure signal of the second Accumulator arrangements 7B that the second press detection sensor 8B detects is analyzed with Time Controller 9, and the discharge capacity of hydraulic control pump 4, make the output power of internal-combustion engine 1 and fill energy power match; When the parameter value (as pressure) of the second Accumulator arrangements 7B reaches capping, controller 9 sends control signal and closes internal-combustion engine 1, stops accumulation of energy; First Accumulator arrangements 7A fills the principle of energy and the identical of the second Accumulator arrangements 7B;
(2), Accumulator arrangements externally does work: the first Accumulator arrangements 7A and the second Accumulator arrangements 7B alternately externally does work after being full of energy, and being in the Accumulator arrangements filling energy state can not externally do work simultaneously; When first Accumulator arrangements 7A externally does work, first direction control valve 6 is in bottom, second direction control valve 10 is in upper, controller 9 analyzes the pressure signal of the first Accumulator arrangements 7A of load signal and the first press detection sensor 8A detection, the output flow of hydraulic control power adjustments distributor 11, realizes take-off output and mates with bearing power; The principle that second Accumulator arrangements 7B externally does work is identical with the first Accumulator arrangements 7A;
(3), mechanical regenerative braking energy regenerating: when the first Accumulator arrangements 7A or the second Accumulator arrangements 7B is in and fills energy state, the gear ring removing single planetary row 2 is fixed, the gear ring of mechanical energy feedback system 3 with single planetary row 2 is connected, mechanical regenerative braking energy drives planet carrier by the gear ring of single planetary row 2, internal-combustion engine 1 drives the planet carrier of single planetary row 2 by the sun gear of single planetary row 2 simultaneously, the planet carrier of single planetary row 2 drives oil hydraulic pump 4, realizes mechanical regenerative braking energy and internal-combustion engine 1 jointly for Accumulator arrangements fills energy;
(4), hydraulic regenerative braking energy regenerating or outside pumping plant fill energy: when the first Accumulator arrangements 7A or the second Accumulator arrangements 7B is in and fills energy state, hydraulic regenerative braking energy fills energy interface 12 by pipeline access outside, jointly for Accumulator arrangements fills energy after being collaborated by the liquid stream pumped with oil hydraulic pump 4 after hydraulic transformer 5 transformation; When outside pumping plant fills energy, close internal-combustion engine 1, outside pumping plant fills energy interface 12 by pipeline access outside, be separately that the first Accumulator arrangements 7A or the second Accumulator arrangements 7B fill energy, now, the speed of the first Accumulator arrangements 7A or the second Accumulator arrangements 7B storage hydraulic energy depends on power and the pressure of outside pumping plant oil hydraulic pump, adopts the hydraulic power unit of high-power to realize filling energy fast.
Embodiment 2:
Embodiment 1 is applied on full hydraulic excavator as hydraulic power supply by the present embodiment, as shown in Figure 2, load isolation formula fluid integrated power system 12, full hydraulic excavator hydraulic braking sytem 13, full hydraulic excavator hydraulic system 14 and full hydraulic excavator mechanical braking sytem 15 is mainly comprised; Its working principle is: the hydraulic power output interface of load isolation formula fluid integrated power system 12 is connected with full hydraulic excavator hydraulic system 14 by pipeline, for full hydraulic excavator provides hydraulic power, full hydraulic excavator hydraulic braking sytem 13 is filled can be connected by interface by pipeline and the outside of load isolation formula fluid integrated power system 12, recycling hydraulic braking energy, full hydraulic excavator mechanical braking sytem 15 is connected by the mechanical energy feedback system of transmission shaft with load isolation formula fluid integrated power system 12, recycling mechanical braking energy.
Claims (1)
1. a load isolation formula fluid integrated power system, is characterized in that agent structure comprises internal-combustion engine, single planetary row, mechanical energy feedback system, oil hydraulic pump, hydraulic transformer, first direction control valve, the first Accumulator arrangements, the second Accumulator arrangements, the first press detection sensor, the second press detection sensor, controller, second direction control valve, hydraulic power regulates and distributes device and energy interface is filled in outside, controller regulates and distributes device telecommunications respectively and ceases and be connected with internal-combustion engine, mechanical energy feedback system, oil hydraulic pump, hydraulic transformer, first direction control valve, the first press detection sensor, the second press detection sensor, second direction control valve and hydraulic power, internal-combustion engine is connected with single planetary row, single planetary row is connected with mechanical energy feedback system, one end of oil hydraulic pump is connected with single planetary row, the other end is connected with hydraulic transformer, hydraulic transformer is connected with outside and fills energy interface, first direction control valve is connected with oil hydraulic pump, hydraulic transformer, the first Accumulator arrangements and the second Accumulator arrangements respectively, second direction control valve regulates and distributes device with the first Accumulator arrangements, the second Accumulator arrangements and hydraulic power respectively and is connected, first Accumulator arrangements connects and is shaped with the first press detection sensor, second Accumulator arrangements connects and is shaped with the second press detection sensor, first press detection sensor and the second press detection sensor detect pressure signal and the load signal of the first Accumulator arrangements and the second Accumulator arrangements respectively, the pressure signal that controller process first press detection sensor and the second press detection sensor detect and load signal, and internal combustion engine, mechanical energy feedback system, oil hydraulic pump, hydraulic transformer, first direction control valve, first press detection sensor, second press detection sensor, second direction control valve and hydraulic power regulate and distribute device and send control signal, control stored energy or the release of the first Accumulator arrangements and the second Accumulator arrangements, internal-combustion engine fills energy by single planetary row driving oil hydraulic pump to the first Accumulator arrangements and the second Accumulator arrangements, or can fill energy to the first Accumulator arrangements and the second Accumulator arrangements by the hydraulic pressure of external ground pump station or the generation of hydraulic regenerative braking energy-recuperation system by interface by outside filling, first Accumulator arrangements and the independent outwards output hydraulic pressure power of the second Accumulator arrangements do work to load system, the process of output hydraulic pressure power is exactly the process that the first Accumulator arrangements and the second Accumulator arrangements release energy, system dynamic performance depends on the Energy Release of the first Accumulator arrangements and the second Accumulator arrangements, the process that releases energy and loading demand adapt, and regulate and distribute device realize mating of Power output and bearing power by hydraulic power, internal-combustion engine to the first Accumulator arrangements and the second Accumulator arrangements fill can time isolate with external load system work, its work is not subject to load effect, and constant operation, in optimum condition, realizes significantly energy-saving and emission-reduction, the charge and discharge energy process of the first Accumulator arrangements and the second Accumulator arrangements hockets, and internal-combustion engine is only for needing the first Accumulator arrangements or the second Accumulator arrangements work of filling energy, and internal-combustion engine is matched according to the average load power of external load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410228813.6A CN103982472B (en) | 2014-05-28 | 2014-05-28 | A kind of load isolation formula fluid integrated power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410228813.6A CN103982472B (en) | 2014-05-28 | 2014-05-28 | A kind of load isolation formula fluid integrated power system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103982472A CN103982472A (en) | 2014-08-13 |
| CN103982472B true CN103982472B (en) | 2016-01-27 |
Family
ID=51274581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410228813.6A Expired - Fee Related CN103982472B (en) | 2014-05-28 | 2014-05-28 | A kind of load isolation formula fluid integrated power system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103982472B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115419622B (en) * | 2022-09-22 | 2024-06-28 | 华侨大学 | Electro-hydraulic compound driving engineering machinery rotation system and control mode |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4064694A (en) * | 1975-11-06 | 1977-12-27 | Regie Nationale Des Usines Renault | Charging an accumulator by a heat engine |
| US4215545A (en) * | 1978-04-20 | 1980-08-05 | Centro Ricerche Fiat S.P.A. | Hydraulic system for transmitting power from an internal combustion engine to the wheels of a motor vehicle |
| CN1323956A (en) * | 2001-07-13 | 2001-11-28 | 陈荣明 | Power-saving energy-accumulating hydraulic power system |
| CN103650283A (en) * | 2011-07-08 | 2014-03-19 | 西门子公司 | Energy storage arrangement and alternating load consumer |
| CN103775595A (en) * | 2014-02-20 | 2014-05-07 | 青岛大学 | Regenerative braking stepless transmission for vehicles |
-
2014
- 2014-05-28 CN CN201410228813.6A patent/CN103982472B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4064694A (en) * | 1975-11-06 | 1977-12-27 | Regie Nationale Des Usines Renault | Charging an accumulator by a heat engine |
| US4215545A (en) * | 1978-04-20 | 1980-08-05 | Centro Ricerche Fiat S.P.A. | Hydraulic system for transmitting power from an internal combustion engine to the wheels of a motor vehicle |
| CN1323956A (en) * | 2001-07-13 | 2001-11-28 | 陈荣明 | Power-saving energy-accumulating hydraulic power system |
| CN103650283A (en) * | 2011-07-08 | 2014-03-19 | 西门子公司 | Energy storage arrangement and alternating load consumer |
| CN103775595A (en) * | 2014-02-20 | 2014-05-07 | 青岛大学 | Regenerative braking stepless transmission for vehicles |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103982472A (en) | 2014-08-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102826000B (en) | Vehicle hybrid system and container stacking machine | |
| RU2478837C2 (en) | Hydraulic drive system (versions), valve, mobile vehicle, method of operating hydraulic drive system, and method of driving via hydraulic system | |
| CN101403405A (en) | Energy recovery system of hybrid single-pump multi-execution component engineering machinery | |
| CN101408212A (en) | Energy recovery system of hybrid power engineering machinery actuating element | |
| CN202969950U (en) | Hybrid power concrete pumping device | |
| CN202115325U (en) | Driving device of power dividing hydraulic hybrid power vehicle | |
| CN103161190A (en) | Hybrid power full hydraulic loading machine hydraulic system based on pressure common rail system | |
| CN202011320U (en) | Vehicle-used hybrid power system | |
| CN107489671B (en) | Hybrid power engineering machinery multi executors control system | |
| CN107906060A (en) | Vehicle parallel type hydraulic hybrid power system and its method with energy regenerating release function | |
| CN201288721Y (en) | Energy recovery system of mixed power single-valve multiple actuator assembly | |
| CN102756636A (en) | Hybrid driving device for concrete mixer and concrete mixer | |
| CN103982472B (en) | A kind of load isolation formula fluid integrated power system | |
| CN204662544U (en) | A kind of fluid electric mixed dynamic system of loader | |
| CN204803957U (en) | Loader hydraulic system | |
| CN201526548U (en) | Hydraulic double-pump power driving device | |
| CN102139626A (en) | Hybrid powder system for vehicle | |
| CN105523493A (en) | Power compensation type workover rig power transmission system | |
| CN104442371A (en) | Power transmission system of power split hydraulic hybrid loader | |
| CN103452150A (en) | Hybrid power hydraulic excavator system adopting movable arm closed control | |
| CN114151056B (en) | Oil hybrid fracturing truck and control method thereof | |
| CN203637570U (en) | Hydrostatic drive wheel type tractor transmission system | |
| CN113738711B (en) | Hybrid energy storage unit of electrostatic liquid and flywheel | |
| CN116119533A (en) | Electric drive hybrid power transmission crane | |
| CN102642459A (en) | Liquid-electricity-gas mixed power system of automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160127 Termination date: 20170528 |