CN105443462A - Two-way output hybrid hydraulic power system - Google Patents
Two-way output hybrid hydraulic power system Download PDFInfo
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- CN105443462A CN105443462A CN201410394307.4A CN201410394307A CN105443462A CN 105443462 A CN105443462 A CN 105443462A CN 201410394307 A CN201410394307 A CN 201410394307A CN 105443462 A CN105443462 A CN 105443462A
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- hydraulic pump
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Abstract
The invention relates to a two-way output hybrid hydraulic power system. The two-way output hybrid hydraulic power system comprises an oil tank, at least one electric hydraulic pump connected with the oil tank and capable of absorbing hydraulic oil outputted in pressurized mode, at least one mechanical hydraulic pump connected with the oil tank and capable of absorbing hydraulic oil outputted in pressurized mode, at least two sequential check valves connected with the electric hydraulic pump and the mechanical hydraulic pump, and one dual pressure valve connected with the oil tank and all sequential check valves in order to transfer the direction of hydraulic output. All the sequential check valves are kept open in the first direction and at the non-return state in the second direction.Therefore, all the sequential check valves can be kept open towards the direction of the electric hydraulic pump. While, the mechanical hydraulic pump is at the non-return state in the second direction so that pressure storage is avoided so that the electric hydraulic pump can output and move. During power input of the mechanical hydraulic pump, all the sequential check valves are pushed to not return from the direction of the electric hydraulic pump such that directions can be easily changed by avoiding pressure storage of oil channels during two-way dual-power output. The function of two-way hydraulic and dual-power hybrid hydraulic output is fulfilled.
Description
Technical field
The invention relates to a kind of hydraulic hybrid power system innovation of two-way output, two-way double dynamical oil circuit pressure accumulation when exporting espespecially can be avoided to cause commutation to have some setbacks, and then reach the effect can carried out bidirectional hydraulic and double dynamical hydraulic hybrid and export.
Background technique
Known hydraulic power output system (as shown in Figure 3), it includes mechanical type hydraulic pump 70, electric hydraulic pump 71, Decompression valves 72, safety check 73 and fuel tank 74 and formed, wherein this mechanical type hydraulic pump 70 is using manpower as power, can draw and the output hydraulic pressure oil that pressurizes, this electric hydraulic pump 71 is using electric motor as power, also can draw and the output hydraulic pressure oil that pressurizes (for unidirectional output), this Decompression valves 72 is in time exceeding setting pressure, earth pressure release can be carried out, this safety check 73 is the adverse currents for preventing hydraulic oil, and this fuel tank 74 is in order to store and to provide the hydraulic oil of pump, when the start of hydraulic power output system, this mechanical type hydraulic pump 70 all has safety check 73 with the outlet end of electric hydraulic pump 71, during to prevent arbitrary pump start, hydraulic oil is by another pump adverse current, so its two pump can carry out the hydraulic pressure output of mixed power, but its shortcoming is that the hydraulic pressure that this mechanical type hydraulic pump 70 and electric hydraulic pump 71 all only can be unidirectional exports, and two-way hydraulic pressure output action cannot be carried out.
And another known hydraulic power output system (as shown in Figure 4), it includes dual-pressure valve 80, electric hydraulic pump 81, Decompression valves 82, safety check 83 and fuel tank 84 and formed, when the start of hydraulic power output system, the mode that the imitative unidirectional power mixing of ginseng exports, the outlet end of this electric hydraulic pump 81 coordinates safety check 83 to carry out two-way output, after first direction pressurization, because hydraulic oil is present in safety check 83, cause oil pipe to expand pressure accumulation, the oil pressure produced will be accumulated in oil circuit, cause the dual-pressure valve 80 of oil return circuit to be pushed to turn right, now convert pressurized direction is second direction pressurization, the oil return circuit of second direction is often kept to be opening state by because of dual-pressure valve 80, oil pressure is caused to be got back in fuel tank 84 in the direct oil return circuit path through right side and cannot pressurize, cause forming pressure accumulation and occur cannot the disappearance of unidirectional driving.
Summary of the invention
The object of this invention is to provide a kind of hydraulic hybrid power system of two-way output, be to make each order safety check often open toward the direction maintenance of electric hydaulic pumping, and toward mechanical type hydraulic pumping direction non-return, unlikely generation pressure accumulation phenomenon, makes the exportable start of electric hydaulic pumping.
For reaching above-mentioned purpose, the present invention is a kind of hydraulic hybrid power system of two-way output, and it comprises: a fuel tank storing hydraulic oil; At least one electric hydraulic pump be connected with fuel tank, can draw pressurization output hydraulic pressure oil; At least one mechanical type hydraulic pump be connected with fuel tank, can draw pressurization output hydraulic pressure oil; At least two order safety check connecting electric hydraulic pump and mechanical type hydraulic pump respectively, the first direction of each order safety check maintains often to open, and second direction is non-return; And the dual-pressure valve that connects fuel tank and each order safety check, be the direction of changing hydraulic pressure output.
In one embodiment of the invention, this electric hydraulic pump is connected with a motor, and this motor be can be clockwise or counterclockwise direction drive electric hydraulic pump.
In one embodiment of the invention, this electric hydraulic pump is the electric hydraulic pump oil circuit outlet with at least two different direction, and this mechanical type hydraulic pump at least includes a mechanical type hydraulic pump discharge, this dual-pressure valve another at least includes oil circuit entrance and the oil return interface of dual-pressure valve, and the oil circuit entrance of the outlet of each electric hydraulic pump oil circuit, mechanical type hydraulic pump discharge and dual-pressure valve connects each order safety check respectively, and the oil return interface of dual-pressure valve is connected with fuel tank.
In one embodiment of the invention, each order safety check includes respectively to export the first oil circuit entrance be connected, the second oil circuit entrance be connected with mechanical type hydraulic pump discharge with each electric hydraulic pump oil circuit and the shared oil circuit that is connected with dual-pressure valve oil circuit entrance exports.
In one embodiment of the invention, each order safety check in do not operate machine formula oil hydraulic pump time, its first oil circuit entrance is for often to open, and therefore, this first oil circuit entrance exports maintenance with shared oil circuit and communicates; In operate machine formula oil hydraulic pump time, its first oil circuit entrance will be closed, and the second oil circuit entrance then exports with shared oil circuit and communicates.
In one embodiment of the invention, be respectively equipped with elastic element in each order safety check, can in do not operate machine formula oil hydraulic pump time, make its first oil circuit entrance keep often opening by this elastic element.
In one embodiment of the invention, this mechanical type hydraulic pump is connected with hand-operated direction valve further, this hand-operated direction valve be there is the reversing oil circuit entrance be connected with mechanical type hydraulic pump discharge, the reversing oil circuit connecting the second oil circuit entrance set by each order safety check respectively exports and can select reversing oil circuit to be exported the personal control be connected with reversing oil circuit entrance.
In one embodiment of the invention, the shared oil circuit outlet of each order safety check can be connected with external hydraulic system further with the oil circuit entrance of dual-pressure valve.
In one embodiment of the invention, this external hydraulic system has to export with shared oil circuit and system oil-way interface that dual-pressure valve oil circuit entrance is connected.
In one embodiment of the invention, this dual-pressure valve separately has the system low-voltage oil return interface be connected with external hydraulic system, and this system low-voltage oil return interface is connected with the oil return interface of dual-pressure valve, with provide external hydraulic system through Mechanism Clearance in leakage force feed flow back to the path of fuel tank.
In one embodiment of the invention, this system oil-way interface is connected with at least two Decompression valvess, and each Decompression valves has at least one pressure release entrance of being connected with system oil-way interface and at least one pressure relief vent be connected with fuel tank.
The present invention can make each order safety check often open toward the direction maintenance of electric hydraulic pump, and toward mechanical type hydraulic pump direction non-return, unlikely generation pressure accumulation phenomenon, make the exportable start of electric hydraulic pump, when the power input of mechanical type hydraulic pump, then promote each order safety check toward electric hydraulic pump direction non-return, with avoid two-way double dynamical export time oil circuit pressure accumulation cause commutation to have some setbacks, and then reach the effect can carried out bidirectional hydraulic and double dynamical hydraulic hybrid and export.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the present invention and explain, not delimit the scope of the invention.Wherein,
Fig. 1 is basic framework schematic diagram of the present invention.
Fig. 2 is using state schematic diagram of the present invention.
Fig. 3 is known using state schematic diagram.
Fig. 4 is another known using state schematic diagram.
Drawing reference numeral illustrates:
(part of the present invention)
1 fuel tank
2 electric hydraulic pumps
21 motors
22 electric hydraulic pump oil circuit outlets
3 mechanical type hydraulic pumps
31 mechanical type hydraulic pump discharges
32 hand-operated direction valves
321 reversing oil circuit entrances
322 reversing oil circuit outlets
323 personal controls
4 order safety check
41 first oil circuit entrances
42 second oil circuit entrances
43 share oil circuit outlet
5 dual-pressure valves
51 dual-pressure valve first oil circuit entrances
51a dual-pressure valve second oil circuit entrance
52 oil return interfaces
53 system low-voltage oil return interfaces
6 external hydraulic system
60 Decompression valvess
601 pressure release entrances
602 pressure relief vent
61 system oil-way interfaces
(conventional partial)
70 mechanical type hydraulic pumps
71 electric hydraulic pumps
72 Decompression valvess
73 safety check
74 fuel tanks
80 dual-pressure valves
81 electric hydraulic pumps
82 Decompression valvess
83 safety check
84 fuel tanks
Embodiment
Please first consulting Fig. 1, is basic framework schematic diagram of the present invention.As shown in the figure: the hydraulic hybrid power system of a kind of two-way output of the present invention, it is at least be made up of a fuel tank 1, at least one electric hydraulic pump 2, at least one mechanical type hydraulic pump 3, at least two order safety check 4 and a dual-pressure valve 5.
This fuel tank 1 above-mentioned stores hydraulic oil.
This electric hydraulic pump 2 is connected with fuel tank 1, and this electric hydraulic pump 2 is connected with a motor 21, and this motor 21 is that direction that can be clockwise or counterclockwise drives electric hydraulic pump 2, makes this electric hydraulic pump 2 can draw pressurization thus and export hydraulic oil in fuel tank 1.
This mechanical type hydraulic pump 3 is connected with fuel tank 1, can draw the hydraulic oil in pressurization output fuel tank 1.
Each order safety check 4 connects electric hydraulic pump 2 and mechanical type hydraulic pump 3 respectively, and the first direction (direction of electric hydraulic pump 2) of each order safety check 4 maintains often to open, its second direction is in non-return (direction of mechanical type hydraulic pump 3).
This dual-pressure valve 5 connects fuel tank 1 and each order safety check 4, is the direction of changing hydraulic pressure output.
Referring to Fig. 2 again, is using state schematic diagram of the present invention.As shown in the figure: electric hydraulic pump 2 of the present invention is the electric hydraulic pump oil circuit outlets 22 with at least two different direction, and this mechanical type hydraulic pump 3 at least includes a mechanical type hydraulic pump discharge 31, this dual-pressure valve 5 another at least includes dual-pressure valve first oil circuit entrance 51, dual-pressure valve second oil circuit entrance 51a and oil return interface 52, and each electric hydraulic pump oil circuit outlet 22, mechanical type hydraulic pump discharge 31 and dual-pressure valve first oil circuit entrance 51, dual-pressure valve second oil circuit entrance 51a connects each order safety check 4 respectively, and the oil return interface 52 of dual-pressure valve 5 is connected with fuel tank 1, and each order safety check 4 includes respectively to export 22 the first oil circuit entrances 41 be connected with each electric hydraulic pump oil circuit, the the second oil circuit entrance 42 be connected with mechanical type hydraulic pump discharge 31, and with dual-pressure valve first oil circuit entrance 51, the shared oil circuit outlet 43 that dual-pressure valve second oil circuit entrance 51a connects, this mechanical type hydraulic pump 3 another is connected with hand-operated direction valve 32 further, this hand-operated direction valve 32 has the reversing oil circuit entrance 321 be connected with mechanical type hydraulic pump discharge 31, connect the reversing oil circuit outlet 322 of the second oil circuit entrance 42 set by each order safety check 4 respectively, and reversing oil circuit can be selected to export 322 personal controls 323 be connected with reversing oil circuit entrance 321, wherein the shared oil circuit outlet 43 of each order safety check 4 can be connected with external hydraulic system 6 further with the dual-pressure valve first oil circuit entrance 51 of dual-pressure valve 5 and dual-pressure valve second oil circuit entrance 51a, this external hydraulic system 6 has to export 43 with shared oil circuit, the system oil-way interface 61 that dual-pressure valve first oil circuit entrance 51 and dual-pressure valve second oil circuit entrance 51a connect, this dual-pressure valve 5 separately has the system low-voltage oil return interface 53 be connected with external hydraulic system 6 again, this system low-voltage oil return interface 53 is connected with the oil return interface 52 of dual-pressure valve 5, with provide external hydraulic system 6 through Mechanism Clearance in leakage force feed flow back to the path of fuel tank 1, in addition, this system oil-way interface 61 is connected with at least two Decompression valvess 60, and each Decompression valves 60 has at least one pressure release entrance 601 of being connected with system oil-way interface 61 and at least one pressure relief vent 602 be connected with fuel tank 1.
After the present invention completes above-mentioned connection, fuel tank 1 can be utilized, electric hydraulic pump 2, mechanical type hydraulic pump 3, hand-operated direction valve 32, order safety check 4, dual-pressure valve 5, the cooperation of external hydraulic system 6 and Decompression valves 60, with electric hydraulic pump 2, mechanical type hydraulic pump 3 and hand-operated direction valve 32 carry out required operation, in operating process, as each order safety check 4 in do not operate machine formula oil hydraulic pump 3 time, its the first oil circuit entrance 41 is often opened toward the direction maintenance of electric hydraulic pump 2, and the direction non-return of past mechanical type hydraulic pump 3, therefore, this the first oil circuit entrance 41 and shared oil circuit export 43 will keep the state communicated, unlikely generation pressure accumulation phenomenon, make the exportable start of electric hydraulic pump 2 thus, otherwise when mechanical type hydraulic pump 3 input power operates, this the first oil circuit entrance 41 will be closed, and then make the second oil circuit entrance 42 and shared oil circuit export 43 communicating, make each order safety check 4 toward electric hydraulic pump 3 direction non-return, wherein be respectively equipped with elastic element in each order safety check 4, can in do not operate machine formula oil hydraulic pump 3 time, make its first oil circuit entrance 41 keep often opening by this elastic element.
Separately when hydraulic oil is exported by the first direction left side of electric hydraulic pump 2 (namely in Fig. 2), dual-pressure valve 5 will be promoted, the dual-pressure valve first oil circuit entrance 51 of dual-pressure valve 5 is closed, and dual-pressure valve second oil circuit entrance 51a is opening state, after hydraulic oil exports outside oil circuit to, via dual-pressure valve second oil circuit entrance 51a backflow formation one complete loops, and in time changing the direction that hydraulic pressure exports, the dual-pressure valve first oil circuit entrance 51 of dual-pressure valve 5 is exchanged, i.e. the direction of convertible hydraulic pressure output with dual-pressure valve second oil circuit entrance 51a opening direction.
In sum, the hydraulic hybrid power system of the two-way output of the present invention effectively improves known disappearance really, each order safety check can be made often to open toward the direction maintenance of electric hydraulic pump, and toward mechanical type hydraulic pump direction non-return, unlikely generation pressure accumulation phenomenon, make the exportable start of electric hydraulic pump, when the power input of mechanical type hydraulic pump, then promote each order safety check toward electric hydraulic pump direction non-return, commutation is caused to have some setbacks with oil circuit pressure accumulation when avoiding two-way double dynamical output, and then reach the effect can carried out bidirectional hydraulic and double dynamical hydraulic hybrid and export, obviously make the present invention more progressive, practical and meet user's demand, reason has possessed the basic important document of patent application, patent application is proposed in accordance with the law.
The above is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, have in any art and usually know the knowledgeable, not departing from the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solution of the present invention, according to any simple modification that technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (11)
1. a hydraulic hybrid power system for two-way output, is characterized in that, described hydraulic hybrid power system comprises:
One fuel tank, stores hydraulic oil;
At least one electric hydraulic pump, is connected with fuel tank, can draw the hydraulic oil that pressurization exports;
At least one mechanical type hydraulic pump, is connected with fuel tank, can draw the hydraulic oil that pressurization exports;
At least two order safety check, connect electric hydraulic pump and mechanical type hydraulic pump respectively, and the first direction of each order safety check maintains often to open, and second direction is in non-return; And
One dual-pressure valve, connects fuel tank and each order safety check, can change the direction that hydraulic pressure exports.
2. the hydraulic hybrid power system of two-way output as claimed in claim 1, is characterized in that, described electric hydraulic pump is connected with a motor, and described motor can drive electric hydraulic pump with clockwise or counterclockwise direction.
3. the hydraulic hybrid power system of two-way output as claimed in claim 1, it is characterized in that, described electric hydraulic pump has the electric hydraulic pump oil circuit outlet of at least two different direction, and described mechanical type hydraulic pump at least includes a mechanical type hydraulic pump discharge, another described dual-pressure valve at least includes oil circuit entrance and the oil return interface of dual-pressure valve, and the oil circuit entrance of the outlet of each electric hydraulic pump oil circuit, mechanical type hydraulic pump discharge and dual-pressure valve connects each order safety check respectively, and the oil return interface of dual-pressure valve is connected with fuel tank.
4. the hydraulic hybrid power system of two-way output as claimed in claim 3, it is characterized in that, each described order safety check includes respectively and to export the first oil circuit entrance be connected, the second oil circuit entrance be connected with mechanical type hydraulic pump discharge with each electric hydraulic pump oil circuit and the shared oil circuit that is connected with dual-pressure valve oil circuit entrance exports.
5. the hydraulic hybrid power system of two-way output as claimed in claim 4, it is characterized in that, each described order safety check in do not operate machine formula oil hydraulic pump time, its first oil circuit entrance is for often to open, therefore, described first oil circuit entrance exports maintenance with shared oil circuit and communicates; In operate machine formula oil hydraulic pump time, its first oil circuit entrance will be closed, and the second oil circuit entrance then exports with shared oil circuit and communicates.
6. the hydraulic hybrid power system of two-way output as claimed in claim 4, is characterized in that, is respectively equipped with elastic element in each described order safety check, can in do not operate machine formula oil hydraulic pump time, by described elastic element make its first oil circuit entrance keep often open.
7. the hydraulic hybrid power system of two-way output as claimed in claim 4, it is characterized in that, described mechanical type hydraulic pump is connected with hand-operated direction valve further, and described hand-operated direction valve has the reversing oil circuit entrance be connected with mechanical type hydraulic pump discharge, the reversing oil circuit connecting the second oil circuit entrance set by each order safety check respectively exports and can select reversing oil circuit to be exported the personal control be connected with reversing oil circuit entrance.
8. the hydraulic hybrid power system of two-way output as claimed in claim 4, is characterized in that, the shared oil circuit outlet of each described order safety check can be connected with external hydraulic system further with the oil circuit entrance of dual-pressure valve.
9. the hydraulic hybrid power system of two-way output as claimed in claim 8, is characterized in that, described external hydraulic system has and to export with shared oil circuit and system oil-way interface that dual-pressure valve oil circuit entrance is connected.
10. the hydraulic hybrid power system of two-way output as claimed in claim 8, it is characterized in that, described dual-pressure valve separately has the system low-voltage oil return interface be connected with external hydraulic system, and described system low-voltage oil return interface is connected with the oil return interface of dual-pressure valve, with provide external hydraulic system through Mechanism Clearance in leakage force feed flow back to the path of fuel tank.
The hydraulic hybrid power system of 11. two-way outputs as claimed in claim 9, it is characterized in that, described system oil-way interface is connected with at least two Decompression valvess, and each Decompression valves has at least one pressure release entrance of being connected with system oil-way interface and at least one pressure relief vent be connected with fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410394307.4A CN105443462A (en) | 2014-08-12 | 2014-08-12 | Two-way output hybrid hydraulic power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410394307.4A CN105443462A (en) | 2014-08-12 | 2014-08-12 | Two-way output hybrid hydraulic power system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105443462A true CN105443462A (en) | 2016-03-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410394307.4A Pending CN105443462A (en) | 2014-08-12 | 2014-08-12 | Two-way output hybrid hydraulic power system |
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| CN (1) | CN105443462A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87102639A (en) * | 1986-06-11 | 1987-12-23 | 株式会社岛津制作所 | Hydraulic system |
| CN1323956A (en) * | 2001-07-13 | 2001-11-28 | 陈荣明 | Power-saving energy-accumulating hydraulic power system |
| JP2003148412A (en) * | 2001-11-08 | 2003-05-21 | Tokimec Inc | Hydraulic control system |
| CN1971068A (en) * | 2005-10-28 | 2007-05-30 | 贺尔碧格自动化技术控股有限公司 | Hydraulic pressure supply unit and electro-hydraulic work unit |
| CN101408108A (en) * | 2008-11-11 | 2009-04-15 | 浙江大学 | Shield cutter head hydraulic system driven bymixed motor serial connection and parallel connection |
| CN101929489A (en) * | 2009-06-26 | 2010-12-29 | 安钛医疗设备股份有限公司 | Two-way oil hydraulic system of operating table |
| CN102245911A (en) * | 2009-07-10 | 2011-11-16 | 萱场工业株式会社 | Control device for hybrid construction machine |
| CN103556669A (en) * | 2013-10-15 | 2014-02-05 | 徐州徐工挖掘机械有限公司 | Swing energy recovery control device of hydraulic excavator |
-
2014
- 2014-08-12 CN CN201410394307.4A patent/CN105443462A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87102639A (en) * | 1986-06-11 | 1987-12-23 | 株式会社岛津制作所 | Hydraulic system |
| CN1323956A (en) * | 2001-07-13 | 2001-11-28 | 陈荣明 | Power-saving energy-accumulating hydraulic power system |
| JP2003148412A (en) * | 2001-11-08 | 2003-05-21 | Tokimec Inc | Hydraulic control system |
| CN1971068A (en) * | 2005-10-28 | 2007-05-30 | 贺尔碧格自动化技术控股有限公司 | Hydraulic pressure supply unit and electro-hydraulic work unit |
| CN101408108A (en) * | 2008-11-11 | 2009-04-15 | 浙江大学 | Shield cutter head hydraulic system driven bymixed motor serial connection and parallel connection |
| CN101929489A (en) * | 2009-06-26 | 2010-12-29 | 安钛医疗设备股份有限公司 | Two-way oil hydraulic system of operating table |
| CN102245911A (en) * | 2009-07-10 | 2011-11-16 | 萱场工业株式会社 | Control device for hybrid construction machine |
| CN103556669A (en) * | 2013-10-15 | 2014-02-05 | 徐州徐工挖掘机械有限公司 | Swing energy recovery control device of hydraulic excavator |
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Application publication date: 20160330 |
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