CN104832484A - Modular hydraulic circuit with intelligently selected anti-zero drift or anti-cavitation erosion functions - Google Patents
Modular hydraulic circuit with intelligently selected anti-zero drift or anti-cavitation erosion functions Download PDFInfo
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- CN104832484A CN104832484A CN201510234011.0A CN201510234011A CN104832484A CN 104832484 A CN104832484 A CN 104832484A CN 201510234011 A CN201510234011 A CN 201510234011A CN 104832484 A CN104832484 A CN 104832484A
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- face
- hydraulic
- oil passage
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- oil
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a modular hydraulic circuit with intelligently selected anti-zero drift or anti-cavitation erosion functions. The modular hydraulic circuit comprises a hydraulic integration module which can be overlaid in the height direction, wherein the hydraulic integration module comprises a hydraulic component mounting surface A, a hydraulic component mounting surface B, a hydraulic component mounting surface C, a hydraulic component mounting surface D, an integration connecting surface E and an integration connecting surface F; a Pv channel, a Pe channel and a T channel which penetrate through the hydraulic integration module are arranged between the surfaces E and F; a first oil inlet/outlet G and a second oil inlet/outlet H are arranged on the hydraulic integration module; a plurality of basic oil channels and anti-cavitation erosion oil channels, which are communicated with the four mounting surfaces, are arranged in the hydraulic integration module; the surface A is provided with anti-cavitation erosion valves which communicate A-B logic oil channels, A-H logic oil channels and an oil return port T; by adjusting hydraulic components on the mounting surfaces, hydraulic circuits with different functions can be realized; meanwhile, functional circuits with load-sensitive function, flow distribution feedback and oil supplement are realized; good through-current capability and high universality are realized.
Description
Technical field
The present invention relates to technical field of hydraulic, particularly relate to a kind of intelligent selection and prevent that zero wafts or the modularization oil hydraulic circuit of anti-cavitation pitting function
Background technique
In technical field of hydraulic, in various hydraulic control circuit, zero phenomenon of wafing is very general, hydraulic circuit system is when power cut-off circulation stops at original position or certain position of rest, because the logical circuit of hydrovalve inside still can form the tiny leakage formed due to pressure reduction, system can be caused slowly to leave original position or position of rest, departing from of occurrence positions, this phenomenon is called zero and wafts.When system starts again, due to zero generation of wafing, there is error in actual initial point and absolute initial point, and system will be caused like this to occur logic error: or send error signal, or there is error-logic, and serious situation there will be security incident.
In technical field of hydraulic, in various hydraulic control circuit, cavitation erosion is also very general, when hydraulic circuit system normally works, can be subject to the impact of various impulsive load unavoidably, and permanent impulsive load is a major reason of system generation cavitation pitting.Hydraulic element precision is high, and the matching gap of relative movement part is little, matching surface motion and gap can be caused to go wrong, affect logic and the life-span of hydraulic system after producing cavitation pitting.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of highly versatile, the intelligent selection of functionally flexible extension can prevents that zero wafts or the modularization oil hydraulic circuit of anti-cavitation pitting function.
For solving the problems of the technologies described above, technological scheme of the present invention is: intelligent selection prevents that zero wafts or the modularization oil hydraulic circuit of anti-cavitation pitting function, comprise the Hydraulic integration module that can short transverse superpose, described Hydraulic integration module comprises four hydraulic element attachment face A faces, B face, C face, D face and two are for being connected in series the E face, the face that is integrated and connected of multiple described Hydraulic integration module in parallel, F face, described E face is provided with oil inlet P v, oil inlet P e and oil outlet T, the Pv passage running through described Hydraulic integration module is provided with between described E face and described F face, Pe passage and T passage, described Hydraulic integration module is provided with the first fluid be connected with hydraulic actuator and imports and exports G and the second fluid imports and exports H,
Be provided with between described A face and described oil outlet Pv
logic oil passage, is provided with between described A face and described oil inlet P e
logic oil passage, is provided with between described A face and described oil outlet T
logic oil passage, described A face and described first fluid are imported and exported between G and are provided with
logic oil passage, described A face and described second fluid are imported and exported between H and are provided with
logic oil passage, described A face, is provided with between B face and D face and crosses in described Hydraulic integration inside modules
logic oil passage and
logic oil passage, is also provided with two independently between described A face and described D face
logic oil passage and
logic oil passage, is provided with between described A face and described B face
logic oil passage;
Be provided with between described B face and described oil outlet T
logic oil passage, described B face and described first fluid are imported and exported between G and are provided with described
logic oil passage is communicated with
logic oil passage, described B face and described second fluid are imported and exported between H and are provided with
logic oil passage;
Be provided with between described D face and described oil inlet P v
oil passage, is provided with between described D face and described oil outlet T
oil passage, described D face and described second fluid are imported and exported between H and are provided with two all with described
logic oil passage is communicated with
logic oil passage and
logic oil passage, is provided with two ports all on described D face in described Hydraulic integration module
logic oil passage;
Described A face is provided with described
logic oil passage, described in
logic oil passage and described
the function selector valve that logic oil passage connects.
As the preferred technological scheme of one, the hydraulic element that described A face is installed comprise in series flow control valve, one-way valve, throttle valve, reduction valve, pressure-compensated valve, three-position three-way valve one or more.
As the preferred technological scheme of one, described function selector valve comprises a three-position three-way valve.
As the preferred technological scheme of one, the hydraulic element that described B face is installed comprise selector valve and/or one-way valve.
As the preferred technological scheme of one, described C face is provided with pressure tap or pressure sensor interface.
As the preferred technological scheme of one, described D face is installed in selector valve, one-way valve, change back pressure valve, throttle valve one or more.
As the preferred technological scheme of one, described Hydraulic integration module comprises the submodule MB1029 and submodule MB0629 that are bolted together.
As the preferred technological scheme of one, the panel element attachment face of described Hydraulic integration module adopts ISO4401 standard, and the inserting element mounting hole of described Hydraulic integration module adopts thread cartridge Placement.
Owing to have employed technique scheme, intelligent selection prevents that zero wafts or the modularization oil hydraulic circuit of anti-cavitation pitting function, comprise the Hydraulic integration module that can short transverse superpose, described Hydraulic integration module comprises four hydraulic element attachment face A faces, B face, C face, D face and two for being connected in series E face, the face that is integrated and connected, the F face of multiple described Hydraulic integration module in parallel, described E face is provided with oil inlet P v, oil inlet P e and oil outlet T, between described E face and described F face, is provided with the Pv passage, Pe passage and the T passage that run through described Hydraulic integration module; Described Hydraulic integration module is provided with the first fluid be connected with hydraulic actuator and imports and exports G and the second fluid imports and exports H; Be provided with many oil passage of connection four attachment faces in Hydraulic integration module, four attachment faces are provided with the hydraulic element mounting hole corresponding with oil passage, and face is provided with described in connection A
logic oil passage, described in
the function selector valve of logic oil passage and described oil return inlet T, by the hydraulic element on adjustment attachment face, the oil hydraulic circuit that function is different can be obtained, by changing the station of function selector valve, making oil hydraulic circuit have anti-zero and to waft function or there is anti-cavitation pitting function; Can have the functional loops such as load-sensitive, assignment of traffic feedback and repairing, the formation of flexibility function is determined by loop design simultaneously, and based on board-like or thread cartridge element, flexibility, with to superpose element irrelevant, has good through-current capability, highly versatile.
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 embodiment of the present invention hydraulic manifold block four hydraulic element attachment face views;
Fig. 2 is embodiment of the present invention Hydraulic integration junction surface E face view;
Fig. 3 is the plug-in opening sectional view of the screw-in cartridge valve of three kinds of forms of the embodiment of the present invention;
Fig. 4 is the Synthesis principle figure of the embodiment of the present invention;
Fig. 5 is the anti-cavitation pitting working principle of the electric controlled differential load-sensitive flow control circuit of the embodiment of the present invention;
Fig. 6 is the anti-cavitation pitting fundamental diagram of the responsive flow control circuit of conventional differential load of the embodiment of the present invention;
Fig. 7 is that the embodiment of the present invention does not have anti-zero and wafts or the electric controlled differential flow control circuit schematic diagram of anti-cavitation pitting function;
Fig. 8 is that the embodiment of the present invention does not have anti-zero and wafts or the conventional differential speed regulation circuit theory figure of anti-cavitation pitting function.
Embodiment
Below in conjunction with drawings and Examples, set forth the present invention further.In the following detailed description, the mode only by illustrating describes some one exemplary embodiment of the present invention.Undoubtedly, those of ordinary skill in the art can recognize, when without departing from the spirit and scope of the present invention, can revise by various different mode to described embodiment.Therefore, accompanying drawing is illustrative with being described in essence, instead of for limiting the protection domain of claim.
Intelligent selection prevents that zero wafts or the modularization oil hydraulic circuit of anti-cavitation pitting function, comprise the Hydraulic integration module that can short transverse superpose, as depicted in figs. 1 and 2, described Hydraulic integration module comprises four hydraulic element attachment face A faces, B face, C face, D face and two for being connected in series E face, the face that is integrated and connected, the F face of multiple described Hydraulic integration module in parallel, described E face is provided with oil inlet P v, oil inlet P e and oil outlet T, between described E face and described F face, is provided with the Pv passage, Pe passage and the T passage that run through described Hydraulic integration module; Described Hydraulic integration module is provided with the first fluid be connected with hydraulic actuator and imports and exports G and the second fluid imports and exports H;
As shown in Figure 4, be provided with between described A face and described oil outlet Pv
logic oil passage, is provided with between described A face and described oil inlet P e
logic oil passage, is provided with between described A face and described oil outlet T
logic oil passage, described A face and described first fluid are imported and exported between G and are provided with
logic oil passage, described A face and described second fluid are imported and exported between H and are provided with
logic oil passage, described A face, is provided with between B face and D face and crosses in described Hydraulic integration inside modules
logic oil passage and
logic oil passage, is also provided with two independently between described A face and described D face
logic oil passage and
logic oil passage, is provided with between described A face and described B face
logic oil passage;
Be provided with between described B face and described oil outlet T
logic oil passage, described B face and described first fluid are imported and exported between G and are provided with described
logic oil passage is communicated with
logic oil passage, described B face and described second fluid are imported and exported between H and are provided with
logic oil passage;
Be provided with between described D face and described oil inlet P v
oil passage, is provided with between described D face and described oil outlet T
oil passage, described D face and described second fluid are imported and exported between H and are provided with two all with described
logic oil passage is communicated with
logic oil passage and
logic oil passage, is provided with two ports all on described D face in described Hydraulic integration module
logic oil passage;
Described A face is provided with described
logic oil passage, described in
logic oil passage and described
the function selector valve that logic oil passage connects, described function selector valve comprises a three-position three-way valve H4.
The hydraulic element that described A face is installed comprise in series flow control valve, one-way valve, throttle valve, reduction valve, pressure-compensated valve, three-position three-way valve one or more.The hydraulic element that described B face is installed comprise selector valve and/or one-way valve.Described C face is provided with pressure tap or pressure sensor interface.Described D face is installed in selector valve, one-way valve, change back pressure valve, throttle valve one or more.Described Hydraulic integration module comprises the submodule MB1029 and submodule MB0629 that are bolted together.The panel element attachment face of described Hydraulic integration module adopts ISO4401 standard, and the inserting element mounting hole of described Hydraulic integration module adopts thread cartridge Placement, and the structure of plug-in opening as shown in Figure 3.
The hydraulic element that hydraulic element attachment face A face, B face, C face, D face are installed can change as required, the oil hydraulic circuit adopting different hydraulic element to form can realize identical function, same oil hydraulic circuit is by changing the working state of certain hydraulic element, also can obtain different functions, illustrate below:
1, differential speed regulation loop (non-loading sensitive state) and the convertible fundamental diagram in single pump bidirectional speed governing loop is illustrated in figure 5
As shown in Figure 5, during non-loading sensitive state, the conversion in differential speed regulation loop and single pump bidirectional speed governing loop is realized by two position four-way solenoid valve H2, when the two right positions of position four-way solenoid valve H2 work, realize the differential speed regulation loop of non-loading sensitive state, when the two left positions of position four-way solenoid valve H2 work, realize single pump bidirectional speed governing loop.
When system circuit normally works, three position three-way change valve H4 is in meta state.When load rapid movement, suddenly slow down or braking, H oil circuit can be caused to produce higher retardation pressure, and can produce negative pressure shape on G oil circuit becomes cavitation pitting simultaneously, in the present invention, owing to being provided with the automatically controlled three-position three-way valve H4 with anti-cavitation pitting function, when H oil circuit produces high pressure, under the intelligent control of controller and pressure transducer, three-position three-way valve H4 can be made to be in left position channel status, carry out repairing by T oil circuit to G oil circuit, thus avoid the generation of cavitation pitting.
When system circuit normally works, three position three-way change valve is in meta state.In position or position of rest time, because the effect of pressure reduction in valve in system forms tiny leakage, the pressure on G road is raised, makes the imbalance of pressure at final controlling element two ends, occur zero and waft, due to anti-zero existence of wafing loop, under the intelligent control of controller and pressure transducer, three-position three-way valve H4 is in right position channel status, and high pressure cannot be set up, final controlling element two ends pressure reduction cannot produce, thus the generation preventing zero to waft.Figure 7 shows that corresponding with Fig. 5 do not possess anti-cavitation pitting function and anti-zero and to waft the hydraulic schematic diagram of function.
2, the intelligent selection anti-zero being illustrated in figure 6 differential speed regulation loop (load-sensitive state) is waftd and anti-cavitation pitting fundamental diagram.
As shown in Figure 6, the element two-way of MB1029 module accesses differential speed regulation when one-way valve D2, D3 realize load-sensitive state respectively.
When system circuit normally works, three position three-way change valve is in meta state.When load rapid movement, suddenly slow down or braking, H oil circuit can be caused to produce higher retardation pressure, and can produce negative pressure shape on G oil circuit becomes cavitation pitting simultaneously, in the present invention, owing to being provided with automatically controlled 3-position-3-way anti-cavitation pitting valve H4, when H oil circuit produces high pressure, under the intelligent control of controller and pressure transducer, three-position three-way valve can be made to be in left position channel status, carry out repairing by T oil circuit to G oil circuit, thus avoid the generation of cavitation pitting.
When system circuit normally works, three position three-way change valve is in meta state.In position or position of rest time, because the effect of pressure reduction in valve in system forms tiny leakage, the pressure on G road is raised, makes the imbalance of pressure at final controlling element two ends, occur zero and waft, due to anti-zero existence of wafing loop, under the intelligent control of controller and pressure transducer, three-position three-way valve H4 is in right position channel status, and high pressure cannot be set up, final controlling element two ends pressure reduction cannot produce, thus the generation preventing zero to waft.Figure 8 shows that corresponding with Fig. 6 do not possess anti-cavitation pitting function and anti-zero and to waft the hydraulic schematic diagram of function.
More than show and describe basic principle of the present invention, major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (8)
1. intelligent selection prevents that zero wafts or the modularization oil hydraulic circuit of anti-cavitation pitting function, it is characterized in that:
Comprise the Hydraulic integration module that can short transverse superpose, described Hydraulic integration module comprises four hydraulic element attachment face A faces, B face, C face, D face and two for being connected in series E face, the face that is integrated and connected, the F face of multiple described Hydraulic integration module in parallel, described E face is provided with oil inlet P v, oil inlet P e and oil outlet T, between described E face and described F face, is provided with the Pv passage, Pe passage and the T passage that run through described Hydraulic integration module; Described Hydraulic integration module is provided with the first fluid be connected with hydraulic actuator and imports and exports G and the second fluid imports and exports H;
Be provided with between described A face and described oil outlet Pv
logic oil passage, is provided with between described A face and described oil inlet P e
logic oil passage, is provided with between described A face and described oil outlet T
logic oil passage, described A face and described first fluid are imported and exported between G and are provided with
logic oil passage, described A face and described second fluid are imported and exported between H and are provided with
logic oil passage, described A face, is provided with between B face and D face and crosses in described Hydraulic integration inside modules
logic oil passage and
logic oil passage, is also provided with two independently between described A face and described D face
logic oil passage and
logic oil passage, is provided with between described A face and described B face
logic oil passage;
Be provided with between described B face and described oil outlet T
logic oil passage, described B face and described first fluid are imported and exported between G and are provided with described
logic oil passage is communicated with
logic oil passage, described B face and described second fluid are imported and exported between H and are provided with
logic oil passage;
Be provided with between described D face and described oil inlet P v
oil passage, is provided with between described D face and described oil outlet T
oil passage, described D face and described second fluid are imported and exported between H and are provided with two all with described
logic oil passage is communicated with
logic oil passage and
logic oil passage, is provided with two ports all on described D face in described Hydraulic integration module
logic oil passage;
Described A face is provided with described
logic oil passage, described in
logic oil passage and described
the function selector valve that logic oil passage connects.
2. intelligent selection as claimed in claim 1 prevents that zero wafts or the modularization oil hydraulic circuit of anti-cavitation pitting function, it is characterized in that: the hydraulic element that described A face is installed comprise in series flow control valve, one-way valve, throttle valve, reduction valve, pressure-compensated valve, three-position three-way valve one or more.
3. intelligent selection as claimed in claim 1 prevents that zero wafts or the modularization oil hydraulic circuit of anti-cavitation pitting function, it is characterized in that: described function selector valve comprises a three-position three-way valve.
4. intelligent selection as claimed in claim 1 prevents that zero wafts or the modularization oil hydraulic circuit of anti-cavitation pitting function, it is characterized in that: the hydraulic element that described B face is installed comprise selector valve and/or one-way valve.
5. intelligent selection as claimed in claim 1 prevents that zero wafts or the modularization oil hydraulic circuit of anti-cavitation pitting function, it is characterized in that: described C face is provided with pressure tap or pressure sensor interface.
6. intelligent selection as claimed in claim 1 prevents that zero wafts or the modularization oil hydraulic circuit of anti-cavitation pitting function, it is characterized in that: described D face is installed in selector valve, one-way valve, change back pressure valve, throttle valve one or more.
7. intelligent selection as claimed in claim 1 prevents that zero wafts or the modularization oil hydraulic circuit of anti-cavitation pitting function, it is characterized in that: described Hydraulic integration module comprises the submodule MB1029 and submodule MB0629 that are bolted together.
8. the intelligent selection as described in claim as arbitrary in claim 1 to 7 prevents that zero wafts or the modularization oil hydraulic circuit of anti-cavitation pitting function, it is characterized in that: the panel element attachment face of described Hydraulic integration module adopts ISO4401 standard, the inserting element mounting hole of described Hydraulic integration module adopts thread cartridge Placement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510234011.0A CN104832484B (en) | 2015-05-08 | 2015-05-08 | Intelligent selection prevents that zero wafts or the modularization hydraulic circuit of anti-cavitation pitting function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510234011.0A CN104832484B (en) | 2015-05-08 | 2015-05-08 | Intelligent selection prevents that zero wafts or the modularization hydraulic circuit of anti-cavitation pitting function |
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| Publication Number | Publication Date |
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| CN104832484A true CN104832484A (en) | 2015-08-12 |
| CN104832484B CN104832484B (en) | 2016-08-31 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4114516A (en) * | 1976-10-15 | 1978-09-19 | Caterpillar Tractor Co. | Anti-cavitation and pressure modulating relief valve for controlling hydraulic cylinders |
| DE4334607A1 (en) * | 1993-10-11 | 1995-04-13 | Rexroth Mannesmann Gmbh | Two-way built-in valve with pressure-relief function |
| CN201110283Y (en) * | 2007-10-15 | 2008-09-03 | 宁波康鑫机械有限公司 | Fluid-pressure cartridge valve system |
| CN201679782U (en) * | 2009-12-18 | 2010-12-22 | 江南机器（集团）有限公司 | Hydraulic integrated controlling device for mobile pumping station |
| CN202228459U (en) * | 2011-09-28 | 2012-05-23 | 德阳瑞能电力科技有限公司 | Electro-hydraulic servo integrated device |
| CN204610411U (en) * | 2015-05-08 | 2015-09-02 | 日照海卓液压有限公司 | Intelligent selection prevents that zero wafts or the modularization hydraulic module system of anti-cavitation pitting function |
-
2015
- 2015-05-08 CN CN201510234011.0A patent/CN104832484B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4114516A (en) * | 1976-10-15 | 1978-09-19 | Caterpillar Tractor Co. | Anti-cavitation and pressure modulating relief valve for controlling hydraulic cylinders |
| DE4334607A1 (en) * | 1993-10-11 | 1995-04-13 | Rexroth Mannesmann Gmbh | Two-way built-in valve with pressure-relief function |
| CN201110283Y (en) * | 2007-10-15 | 2008-09-03 | 宁波康鑫机械有限公司 | Fluid-pressure cartridge valve system |
| CN201679782U (en) * | 2009-12-18 | 2010-12-22 | 江南机器（集团）有限公司 | Hydraulic integrated controlling device for mobile pumping station |
| CN202228459U (en) * | 2011-09-28 | 2012-05-23 | 德阳瑞能电力科技有限公司 | Electro-hydraulic servo integrated device |
| CN204610411U (en) * | 2015-05-08 | 2015-09-02 | 日照海卓液压有限公司 | Intelligent selection prevents that zero wafts or the modularization hydraulic module system of anti-cavitation pitting function |
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|---|---|
| CN104832484B (en) | 2016-08-31 |
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