CN103277541B - Modularized electrohydraulic multi-way valve adopting novel combined slide valve and MINISO CVs - Google Patents

Abstract

The invention provides a modularized electrohydraulic multi-way valve adopting a novel combined slide valve and compact type two way cartridge valves. The modularized electrohydraulic multi-way valve is characterized in that two reversible controlled chambers of a double-acting hydraulic cylinder or a hydraulic motor are controlled by a combined three-side slide valve main stage in one group and cartridge valve seat valve main stages of two compact type two way cartridge valves with functions of oil replenishing and various pressure controlling in one group. The modularized electrohydraulic multi-way valve can be widely applied to various machines, equipment and projects based on electric-hydraulic control loop combinations in mobile hydraulic (MH) and industrial hydraulic (IH) and control spaces having several special requirements or special purposes on environments, and a novel technological approach is mainly provided for constructing product schemes more meeting and conforming to novel diversified requirements of current mobile machinery on hydraulic technology according to users' requirements and through features that modularization is supportive of assembly and open.

Description

Adopt the Modular electrical liquid multi-way valve of novel combination type guiding valve and compact two-way cartridge valve

Technical field

The present invention relates to hydraulic control system technical field, specifically relate to a kind of modular electric liquid multi-way control valve

Background technique

The Chinese invention patent that the applicant has proposed: 201210376577.3 " adopting the modularized combination type electricity-liquid multi-way valve system of compact two-way cartridge valve ", the Chinese invention patent that the applicant has also proposed: (compact two-way cartridge valve is also known as " MINISO CV ") for 201010280504 " adopting the compact two-way cartridge valve of combined type flange control cover plate ".Innovation proposes a kind of MINISO CV that adopts and combines the new technology of " electricity-liquid multi-way valve and system " and the portioned product scheme of combination thereof again now, they not only may be used for the part electricity-liquid multi-way valve product of intimate employing guiding valve main in alternative traditional product, importantly propose and claimed current should putting forth effort to develop based on user's request and technological progress, more employings are created by modularization combining and open feature and more meet and comply with the new products scheme of current mechanically moving to the new demand of hydraulics and the technology application point of combination product thereof, this is the autonomous opinion and the innovation effort that meet China's actual conditions.

The present invention, then based on above-mentioned patent and aim, proposes another " electricity-liquid multi-way valve " with innovation characteristic and system product and assembled scheme thereof.It is together with aforementioned invention, be intended to still change and innovate based on some comparatively typical products of the conventional construction of the employing guiding valve main of application mainstream and scheme current further, to be conducive to accelerating development the novel electricity-hydraulic control valve and combination product thereof and system that meet above-mentioned aim, actively break away from depending on unduly external conventional art and product.

The present invention's loop combination of being equally applicable in existing industrial hydraulic applications based on electricity-liquid selector valve the same as aforesaid patent of invention " 201210376577.3 " " 201010280504 ", and comprise some control occasions to the particular/special requirement of environment or special purpose.The present invention holds concurrently in movable hydraulic (MH) and the modularized combination type electricity-hydraulic control product of industrial hydraulic (IH) and the once new effort of technology based on MINISO CV novel to creating.

Summary of the invention

New electricity-liquid multi-way valve product that the present invention proposes and technological scheme, equally based on the relevant theory and practice in " flowed friction loop ", find in the application in movable hydraulic (MH) field after the feature of incorporation engineering application to two of the double-acting hydraulic cylinder of work mechanism in typical mechanically moving or oil hydraulic motor reversible controlled chamber flowed friction loops carries out comprehensive analysis: based in the typical four-way loop of above-mentioned double-acting hydraulic cylinder or oil hydraulic motor, substantially identical with the application of industrial hydraulic (IH) on principle scheme, but there is obvious characteristic, equally, on typical product structure, especially in employing guiding valve main and employing discrete component combined loop these 2, the two is derived from fellow disciple.As everyone knows, in electric liquid multi-way valve system, commutation connection is the product of most basic model.By the analysis to some hydraulic resistance circuits typically formed in multi-way valve commutation connection basic product, contribute to hindering the understanding of deepening in essence them from control.

In the main loop of electric liquid multi-way valve commutation connection, the loop that usually high pressure oil and they two controlled chamber from oil sources can be connected is referred to as " input circuit " (or claiming oil-feed loop), and the loop that two controlled chamber are connected with low voltage terminal (as fuel tank) is referred to as " output loop " (or claiming " oil-discharging circuit "), the display of two kinds of loops, their flowed frictions and loopback diagnostic different.Therefore, they structurally have relative independentability and decomposability.In general, be equivalent to P mouth in multi-way valve (system) commutation connection, its input circuit (oil-feed loop) to A.B mouth and the output loop (oil-discharging circuit) of A.B to T mouth, they are controlling the structure (comprising combination) of resistance (control limit) and are functionally having obvious characteristic.To P mouth to A.B mouth hydraulic resistance circuit, be first that to have open and close be main commutation function, P mouth to A mouth can be made on request respectively to connect or P mouth to B mouth connects or P mouth connects A.B mouth etc. simultaneously.In the commutation connection of most multi-way valve, when P-A or P-B connects, the flow needs that the pressure oil of self-pumping or other device is different according to work mechanism are carried out by P mouth, usually all need to carry out throttling (comprising ratio throttling) by controlling limit, in addition, according to energy-conservation needs and proportioning pump device and load characteristic, most commutation connection " oil-feed loop " all can arrange the element and combination with multi-form pressure compensation before main valve plug throttling or after throttling, conventional has the loop combination such as " throttling precompensation " or " throttling post-compensation ".Such as, in Figure of description 1, the technological scheme of employing is so-called throttling spool post-compensation form, or claim with load have nothing to do flow distributing system.Structurally this compensation device inlet pressure compensating element of mostly adopting independently screw-in cartridge valve pattern to connect or can be embedded, the component element of plug-in mounting, and be installed in valve body.They can coordinate " oil-feed loop " to complete throttling post-compensation during (commutation connection in) P-A or P-B in valve or the compensation before throttling, with the needs of satisfied different oil pump and load standard and Energy Saving Control.

In the process forming performance loop circulation before hydraulic oil to work mechanism controlled chamber, as Fig. 1, the guiding valve main (spool) based on multiple throttling limit in this kind of typical electric liquid multi-way valve commutation joint product, the control mode forming classical polygon interlock is coordinated, form the P-A of traditional approach in work mechanism, B-T or P-B, A-T reversible loop flow.

Further analysis is visible, when A mouth .B mouth is communicated with T mouth, although the output resistance controlling oil extraction in A-T or B-T loop is the target of its core, but in fact they are when linking, namely the same with P-A, B during A-T or B-T, will simultaneously " by throttling ", no matter namely A-T or B-T is the need of throttling, generally based on existing four-side, their linkage pattern of valve core structure always first passive formation meter out state.Therefore needs back pressure is carried out to oil extraction process or without micro-stepping control such as pressure-controlled (unloading pressure-controlled) time, especially present states such as " negative loads " when operating load body declines when needing to carry out targeted control overflow as required, only rely on guiding valve main often cannot realize.Now must increase some independently discrete component or combinations.See by the viewpoint in flowed friction loop, " by throttling " is not necessary.In addition, usually have people that the secondary relief arranged independent in Fig. 1 is thought " input resistance ", and in fact, it mainly play A-T, the effect of pressure limiting in B-T loop and repairing effect as the combination of the output resistance in " oil-discharging circuit " with " repairing ".

More than analyze and show, to the segmentation of resistance loop and function, be conducive to us and go refinement control combination thus better practical requirement from different visual angles.In addition, as everyone knows, the hydraulic control of modern mechanically moving has become diversified and personalized, and improve efficiency, reduce oil consumption, Energy Saving Control, environmental protection and the requirement to " manufacturability " and supply chain optimization etc. improve day by day, equally, quite a few traditional product based on sliding valve structure current also cannot simply be met.Particularly responsive is, high with the valve body formed machining manufacture difficulty with many undercut grooves and complex-shaped surface mould and runner as multiple throttling limit guiding valve main, very important status is in whole production procedure and SUPPLY CHAIN, often become innovation and development multi-way valve, comprise one of important restriction factor in chip and monolithic construction product, particularly originator after Chinese such technology, more forms severe challenge.Simultaneously, the technological scheme of the product of most conventional spool valves main structure is due to the rule of historical reasons or evolution of market and technological progress, they mostly adopt traditional mode based on discrete component unitized designing method in process of product development, main adopt change and the restructuring of carrying out control loop by constantly adding the discrete component with standalone feature and Placement and combination.Developing history shows, although traditional approach constantly carries out new effort in the new modularization new technique product of development and scheme, obviously lacks of staying power, and also there is many spaces needing innovation reform technically.Therefore, the agile development of further enforcement large-scale customization more meets the personalization of mechanically moving market demand main frame and manufacturer, diversified trend, reduce costs further while the more energy-conservation environmental protection of better raising efficiency, must study more reasonable, compact, economical further and value-added new technological scheme be brought to user, be devoted to autonomous innovation and research and develop particularly urgent to China.Wherein active adoption MINISO CV product technology scheme, or by innovation and development that MINISO CV product and technological scheme get involved and penetrate into conventional spool valves technology, in China, not only there is very solid research and development basis and large market application prospect, probably become and actively break away from current the most effectively one of technological approaches depending on external conventional art product and scheme in movable hydraulic pressure controlled valve field unduly.

In order to reach above-mentioned target, the technical solution used in the present invention is such:

Adopt the Modular electrical liquid multi-way valve of novel combination type guiding valve and compact two-way cartridge valve, it is characterized in that: it is by one group one knockdown three limit guiding valve mains, and one group of two MINISO CV have repairing and multiple pressure control function cartridge valve seat valve main to two that control double-acting hydraulic cylinder or oil hydraulic motor reversible controlled chamber;

Three limit spool valve core bodys and one group two are inserted into three limit spool valve core bodys inner cartridge valve pressure compensation control units and are combined into novel combination type guiding valve main, and described guiding valve main and two side end caps form the input resistance that oil-feed circuit control module controls in two controlled chamber; The multi-functional pressure control unit composition oil-discharging circuit control module that one group of two MINISO CV have a repairing function controls two output resistances of two controlled chamber;

Described oil-feed circuit control module and oil-discharging circuit control module are contained in a valve block block, the electric liquid multi-way valve main body of comprising modules; Comprise pilot control element in two control modules of described electric liquid multi-way valve main body, described pilot control element forms pilot control level.

Described valve block block, comprises one group two MINISO CV compact two-way cartridge valve seat valve main mounting holes and cover plate attachment face, independent " the three limit guiding valves " mounting hole arranged; By described valve block block mounting hole and attachment face, main hydraulic fluid port P, T, A, B, control port Pc, Tc, LS main auxiliary hydraulic fluid port R, M composition can stack-mounted modular electric liquid multi-way valve body.

Described guiding valve main comprises pressure compensation assembly after throttling, is the structure of Embedded two flow-throughs; Guiding valve main combines by controlling end cap with two side flanges, forms the pressure compensation assembly of the MINISO CV of divergence type.

The control mode of described guiding valve main adopts the wherein a kind of of the pilot control form based on the pressure self-controlled formula from fuel feeding, the low pressure external control based on outer fuel feeding or pilot control form.

Described valve block block has guiding valve through hole, in guiding valve through hole, is provided with undercut groove; Valve block block is also provided with the seat valve main mounting hole of two MINISO CV and the attachment face of four MINISO CV modular flange cover plates.

Two side flange control ends cover be provided with for assembling employing MINI NG3 or meet ISO4401-02 and CETOP-02 standard attachment face, and these two side flanges control end caps on put the miniature two-position four-way pilot-actuated valve that attachment face upper mounting plate formula connects.

In oil-feed circuit control module three limit guiding valves and two side flanges control end cap form be with throttling after the electricity-liquid with multidigit four-way function that controls of pressure compensation commutate and join; The commutation of described electricity-liquid is associated in the screw-in cartridge valve that the two side flange control end portions of covering are provided with the two-position three way guide electromagnetic direction valve of two identical novel mounting holes of employing.

Two side flange control ends cover to be configured with and meet ISO4401-02 and CETOP-02 standard attachment face, are provided with the corresponding miniature 3-position 4-way control valve adopting manual control plate-type to connect pilot control.

Two side flange control ends cover and are provided with externally controlled type pilot control hydraulic fluid port and pilot control element.

In electricity-liquid commutation connection, three limit guiding valves are proportional control type " three limit guiding valves " main, and it is inner containing throttling inlet pressure compensation assembly, and contains the pilot control level matched with proportional control type guiding valve main in two side flange control end lids simultaneously.

Electricity-liquid commutation connection comprise match with proportional control pressure valve pilot control level, two be with the oil return draught control type seat valve main of repairing function and layout type flange to control cover plate.

This electric liquid multi-way valve is undertaken integrated by multiple chip electricity liquid multi-way valve commutation connection, forms the system level architecture of plural pieces; This stack-mounted multiplex system has input connection, tail connection, middle connection, special, the configuration of construction system level.

This electric liquid multi-way valve system is the Integral electric-liquid multi-way valve system of multi-joint combination function.

Compared with prior art, the present invention has outstanding effect in following several respects:

1, new electricity-liquid multi-way valve technological scheme is according to " liquid resistance theoretical " and " oil hydraulic circuit decomposed design and combined method " scheduling theory and method, in conjunction with the control overflow of work mechanism in mechanically moving, determine after the fundamental circuit of some typical multi-way valve commutation connection is analyzed: based on modularization, can combo and open technical characteristics and MINISO CV product technology be designed by the combined loop of the liquid resistance combination in " input circuit " (oil-feed loop) and " output loop " (oil-discharging circuit) being carried out to decomposing type, and the innovative combination that to adopt with the main of two kinds of different structure forms be respectively main structure, in conjunction with simultaneously adopt can more flexible compact pilot control level combination, form " adopting the electricity-liquid multi-way valve system of combined type guiding valve and MINISO CV " the control combination scheme innovated completely.

2, sliding valve structure some advantages on throttling controls are being drawn in new technological scheme and combination product " input circuit " (oil-feed loop) thereof, after avoiding its some intrinsic shortcomings simultaneously as far as possible, have employed the novel structure with the main slide valve of three main control limits (restriction), be called for short " three limit guiding valves ", and can based on the electricity of MINISO CV mode-liquid pilot control, pass through combined type flange control cover plate, pilot control element on the cover board and combination (both can adopt switching mode, also can adoption rate control type) or configure diversified pilot control mode, be used for the commutation effectively implemented this " three limit guiding valves ", throttling and relevant control.Simultaneously, " the three limit guiding valves " of this innovation, there is obvious modularization, can the technical characteristics of combo, particularly by arranging modular functional unit or structure in valve core inside innovation, such as, inner in " three limit guiding valves " spool both sides as required, can distinguish or the simultaneously corresponding check valve assembly of plug-in mounting, the functional assemblies such as pressure compensation assembly.The movement of " three limit guiding valves " spool, spring centering, stroke restriction or stroke detection (containing LVDT) etc. are all arranged on the side end cap based on MINISO CV combined type flange control cover plate (or modification) of corresponding two sides on valve body by setting and realize.Equally, the check valve assembly in " three limit guiding valves " spool, the pick-and-place components such as pressure compensation assembly are preferentially based on the pick-and-place components in MINISO CV and modification.By combined type, modular " main valve plug " assembly and two sides can form novel " oil-feed loop " (input circuit) control combination based on the modular end cap of combined type flange control cover plate and the structure such as valve body and inner passage thereof.In the configurable control combination of this modularization, carry out larger novelty during " three limit guiding valves " main structure to conventional spool valves spool to improve and design, first, according to the structure characteristic of three restrictions, the valve core overall length of guiding valve main is made obviously to shorten with diameter corresponding increase (spool slenderness ratio enlarges markedly), have with " four-side " main of traditional product and significantly distinguish and structure characteristic, the simultaneously concerned components of more employing MINISO CV and Variant Design again, therefore, novel " combined type guiding valve " in technical solution of the present invention is a kind of innovation structure design and technological scheme of originality, component and the combination thereof such as " combined type guiding valve " and side end cap thereof in this scheme, modularization can combo and open characteristic remarkable, the degree of standardization and the configuration of its modularized combination type is very high.Because new " three limit guiding valves " main structure is abandoned elongated and got tubbiness, improve modularized combination type degree emphatically, the valve block block processing technology that so just fully can realize three limit guiding valves and assembling main body thereof is more reasonable simple, material is more diversified, thus can effectively to dissolve in traditional product due to the difficult problem that the factors such as the large core component of main guiding valve and valve body two cause " controllability " " manufacturability " poor, overcome be difficult to realize modularization, can combo and open technical characteristics deficiency and strike home.The optimization of the flow process that this electricity-liquid multi-way valve integral product higher to technology content is formed and SUPPLY CHAIN, so more environmental protection and sustainable improvement also have very positive meaning.

3, described above, in the control of " output loop " (oil-discharging circuit) the most primary and outstanding be ensure to its oil return resistance carry out multiple setting and flexibly, variation controls, thus, this part adopts seat valve structure to be undoubtedly preferably choose reasonable, and, they completely directly can adopt or be configured based on the basic module of MINISOCV and innovative assembly thereof and combine and realize the combination of two output resistances in " oil-discharging circuit " not only complexity but also control flexibly like this, comprise and have Prop-pressure control etc. concurrently.The present invention is according to control needs, on the basis of the basic model MINISO CV related to, the design innovated again and configuration combination, form the new control unit based on MINISO CV with repairing function and multiple force combination controlling functions, the present invention, according to the needs in basic model four-way loop, have employed and is combined into " output loop " control combination and control module by the oil return control unit based on MINISO CV of one group two innovations.New MINISO CV oil return control unit is that one can have multiple Stress control or combination, the pressure control assembly of band repairing function.It is by the seat valve main CVI with repairing function and having multiple Stress control and combining combined type flange control cover plate CVC and combine through combo.The controls such as it combines direction in pilot control, pressure, can have switch concurrently, the modes such as ratio in guide's control form.

" output loop control module " both can be made up of the oil return control unit of the MINISO CV of two innovations, equally, according to the demand that difference controls, pass through modularization, can combo and open feature, can be very flexible, carry out multiple combination easily, the combination that can form variation and personalization together with valve block block and dependency structure is carried out the different needs controlled " oil-discharging circuit " in satisfied different main frame or electric liquid multi-way valve system by them.

Should be understood that, adopt and coordinate " three limit guiding valves " combine and control the oil return resistance to A, B to T by two MINISO CV compact two-way cartridge valve seat valves, the loop of this decomposing type and control program and structure are a kind of autonomous innovation completely, are propose first in this electricity at movable hydraulic (MH)-liquid multi-way valve commutation connection and system.Owing to have employed the combination of MINISO CV control unit in " oil-discharging circuit " (output loop) as one of primary module, and the control end cap of " three limit guiding valves " the control cover plate that have employed based on MINISO CV becomes the important composition of primary module in " input circuit " (oil-feed loop), show so more effectively in new art solutions by adopt the modularization of MINISO CV, can combo and open technical characteristics and as one of key technology.Because MINISO CV ten points is conducive to manufacturing and management mode by " large-scale customization " " agile development " and " Lean Manufacturing " etc. are advanced, is conducive to expanding manufacture scale and effectively reducing costs, is conducive to improving the quality of products and Supply period shortened.Therefore, based on the present invention of MINISO CV, actively break away from depending on unduly existing external traditional product and technological scheme to Chinese Hydraulic Industry, form Chinese proprietary technology, scale enters the field, middle and high end that movable hydraulic controls and also has very positive meaning.

4, based in the of the present invention electric liquid multi-way valve product of flowed friction loop decomposed design principle and technological scheme, the total arrangement of basic model valve block block and mounting hole, attachment face, the setting such as each duct in valve block block, very crucial, according under the prerequisite ensureing the compacter and rational basic layout of basic model module, when being fully reserved in the subsequent adaptations design of basic model valve block, various mounting hole in valve block block, attachment face, main control and pilot control and to be auxiliaryly connected with relevant chip with duct, corresponding Variant Design when integrated and additional requirement is had to have good basis, extensive or the substantial change of unlikely formation.

" three limit guiding valves " valve opening in block, it is a through hole, it is used for and valve core of the spool valve mutual spouse part can ensure higher precision by processing technologys such as honings, owing to only adopting a small amount of undercut groove in this hole, straight apertures is larger, therefore fully can ensure to realize better processing and spouse's performance, shorten process time etc.And the requirement reserved when " three limit guiding valves " is because controlling to need Variant Design structure when must adopt valve pocket in the middle of band to space.The valve body inner flow passage of existing basic model valve block block is shorter, and compact in design, simple, its friction loss is less." three limit guiding valves " through valve opening also can occupy same plane with the center line of two MINISO CV mounting holes in " oil-discharging circuit control module " and the axis of A, B hydraulic fluid port orthogonal intersecting.Simultaneously main hydraulic fluid port P and T of valve block bulk inner, and penetration hole location gap each other when control port PC, TC and other via hole are connected with chip is abundant, layout is compact and reasonable comparatively, is extremely convenient to process.Especially when the foundry goods adopting casting to be formed or section bar advantageously, even if adopt steel embryo or section bar also can ensure good processibility.This valve block block has reserved space comparatively fully in position on the upper side at middle part, is consider when chip connection needs when Variant Design, can arranges the comparatively compact interlayer functional part of interpolation or annex at interlayer.

Accompanying drawing explanation

The present invention is described in detail below in conjunction with the drawings and specific embodiments;

Fig. 1 is a kind of structural representation of electricity-liquid multi-way valve commutation connection of typical employing conventional spool valves structure main.

Fig. 2 is a kind of modularized combination type electricity-liquid multi-way valve structural representation adopting MINISO CV compact two-way cartridge valve.

Fig. 3 is the structural representation that the present invention adopts the Modular electrical liquid multi-way valve (commutation connection basic model product) of combined type guiding valve and MINISO CV.

Fig. 4 is the explosive view of Fig. 3 product.

Fig. 5 a is the oil hydraulic circuit schematic diagram (pilot control internal control type) of Fig. 3 product.

Fig. 5 b is the oil hydraulic circuit schematic diagram (pilot control externally controlled type) of Fig. 3 product.

Fig. 6 is " three limit guiding valves " explosive view in combined type guiding valve main in Fig. 3.

Fig. 7 a is that the MINISO CV in Fig. 3 is with repairing and multiple pressure controlled control unit schematic diagram (internal control shape).

Fig. 7 b is that the MINISO CV in Fig. 3 is with repairing and multiple pressure controlled control unit schematic diagram (simple external control).

Fig. 8 is valve body block block stereogram in Fig. 3.

The dimension sketch of the two-position three way pilot valve that Fig. 9 a adopts two to be threaded.

The dimension sketch of the Proportional valve pilot control that Fig. 9 b adopts two to be threaded.

Fig. 9 c adopts the dimension sketch of two board-like attachment face MINI two-position four way change valves.

Fig. 9 d adopts the dimension sketch of board-like attachment face and MINI 3-position 4-way manual operation valve.

Fig. 9 e band can adopt the end cap of the hydraulic control mouth of externally controlled type.

Figure 10 a is based on the multi-joint sheet type modularized electric liquid multi-way valve system schematic diagram of Fig. 3 product technology scheme.

Figure 10 b is the dimension sketch of integrated valve system (b) of Figure 10 a.

The Hydraulic System Principle sketch (internal control) of Figure 11 Fig. 9 product.

A kind of pilot control of Figure 12 is that the employing of externally controlled type typically adopts the electricity of conventional spool valves structure main-liquid multi-way valve commutation to join structural representation.

Figure 13 adopts the modularization of the Modular electrical-liquid multi-way valve of combined type guiding valve and MINISO CV (commutation connection) can combo, open technical characteristics and constitutional diagram.

The explanation of nouns of attached number in the figure parts

1-0: the oil-feed control module be made up of " three limit guiding valves " main and two side control end lids

1-1-0: " three limit guiding valves " main

1-1-1-0: pressure compensation assembly after throttling

1-1-1-1: pressure compensation spool

1-1-1-2: pressure compensation spring

1-1-2-0: pressure compensation assembly after throttling

1-1-2-1: pressure compensation spool

1-1-2-2: pressure compensation spring

1-1-3-0: pressure compensation feedback means

1-2-0: side end cap

1-2-1-0: side end cap cover plate body

1-2-2-0: pressure regulator valve

1-2-3-0: board-like installation two-position four-way solenoid directional control valve

1-2-4-0: guiding valve main stroke regulating lever

1-2-5-0: combination plug screw

1-3-0: side end cap

1-3-1-0: side end cap cover plate body

1-3-2-0: pressure regulator valve

2-0: one group of two MINISO CV has repairing and multiple pressure control function cartridge valve seat valve main, oil return control module

2-1-0: oil return control module A

2-1-1-0:MINISO CV compact two-way cartridge valve seat valve main

2-1-2-0:MINISO CV compact two-way cartridge valve installs cover plate

2-1-2-1-0: oil return pressure regulator valve

2-1-2-2-0: oil return solenoid directional control valve

2-1-2-3-0: combination plug screw

2-1-2-3: external control type oil return controls cover plate body

2-1-2-4: internal controlling oil return controls cover plate body

2-2-0: oil return control module B

2-2-1-0:MINISO CV compact two-way cartridge valve seat valve main mounting hole

2-2-2-0:MINISO CV compact two-way cartridge valve cover plate attachment face

3-0: valve body

Embodiment

The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.

A kind of modularized combination type electricity liquid multi-way valve system technological scheme and product adopting novel combination type guiding valve main and the combination of MINISO CV compact two-way cartridge valve seat valve main, see Fig. 3, Fig. 5 a, Fig. 5 b, Fig. 9, Figure 10, Figure 12, Figure 13, it is by knockdown " three limit guiding valves " main of one group one innovation, see Fig. 3, 1-1-0 in Fig. 6, with one group of two MINISO CV, there is repairing and multiple pressure control function cartridge valve seat valve main, see 2-0 in Fig. 3, Fig. 7 a, in 7b, 2-1-0 controls the reversible controlled chamber of double-acting hydraulic cylinder or oil hydraulic motor two.Be inserted into the inner custom-designed cartridge valve pressure compensation control unit of " three limit guiding valves " valve core by " three limit guiding valves " valve core and one group two and be combined into novel combination type guiding valve main see Fig. 6, formation has " the oil-feed circuit control module " of throttling back loading compensatory control function see 1-0 in Fig. 3, control the input resistance in two " controlled chamber ", they and form by one group two the multi-functional pressure control units of band repairing functions innovated based on MINISO CV " oil-discharging circuit control module " to control two controlled chamber two output resistances see 2-0 in Fig. 3, the different main module assembled of these two structure characteristics at the valve block block of innovative design see Fig. 3, Fig. 4, Fig. 5 a, 3-0 in Fig. 5 b, Fig. 9 a-9e, 10a, 10b, 12 and comprising modules electric liquid multi-way valve main body Figure 13 in part with section, further, the pilot control element that this main body comprises via two control modules, they are the 2-1-0 in MINISO CV combined type flange control cover plate (see Fig. 3), 2-2-0 and the middle 1-2-0 of side end cap (see Fig. 3), 1-3-0, common formation pilot control level, see schematic diagram Fig. 5 a, 5b is with dash area, implement the pilot control to " three limit guiding valves " main and two MINIS CV compact two-way cartridge valve seat valve mains.

By above-mentioned electric liquid multi-way valve main body and pilot control level form " adopt the Modular electrical-liquid multi-way valve system technological scheme of novel combination type guiding valve and MINISOCV and Fig. 3,4, the typical products shown in 9a-9e, 12,13; especially Figure 13 comparatively obviously and intuitively illustrates the modularization in technical solution of the present invention, can the distinct technical characteristics of combo.

The function module adopting unique design layout to install two groups of 26S Proteasome Structure and Functions different controls 2-0 in main Fig. 3, that 1-0 is 3-0 during the present invention has in main valve block basic model block Fig. 3,4, the main layout of this valve block bulk inner is see the stereogram of Fig. 8, they are by one group two MINISO CV compact two-way cartridge valve seat valve main mounting holes, see MINISO CV/CVH in Fig. 8, 2-2-1-0,2-1-1-0 and cover plate install 2-2-2-0,2-1-2-0 of valve face MINISO CV/CV/CVF, " the three limit guiding valves " mounting hole (SP/H1-0) of an independent setting or two sides end cap flange attachment face (MINISO CV/SP/ (F1-1), (F1-2), these (seat valve formula) main mounting holes, cover plate attachment face and guiding valve mounting hole, end cap attachment face and they and each main hydraulic fluid port P, T, A, B and numerous pilot control passage, (pilot control passage and other auxiliary duct such as auxiliary control port, apertures etc. are see schematic diagram Fig. 5, expression is not given in the entities such as Fig. 3) connection each other controls different needs according to the principle of decomposing type Hydraulic Circuit Design according to main and pilot stage, chip is multi-joint to be installed to connect key element and particular design and the layout such as to need, forming diagram thus can stack-mounted modular electric liquid multi-way valve basic model valve body (commutation connection valve body).See relative section in 3-0 Fig. 9 a-9e, 10a Figure 12 in Fig. 3,4,6.(Fig. 5 oil hydraulic circuit schematic diagram, only lists product shown in Fig. 3,12, does not all list other products).

Further, modular flange in described " oil-feed circuit control module " Fig. 3 in 1-0 controls 1-2-0 in end cap Fig. 3, 1-3-0, CVA in MINISO CV combined type flange control cover plate Fig. 3 in " oil-discharging circuit control module " Fig. 3 in 2-0, 1-2-0, CVB, 1-3-0 is used for fixing with 3-0 in valve block block Fig. 3, connect and sealing, participate in " three limit guiding valves " spool respectively, pressure compensation control unit in Fig. 3 in 1-1-0 is (see 1-1-1-0 in Fig. 6, control 1-1-2-0), 2-1-1-0 in seat valve main Fig. 3 Fig. 4 that the multi-functional pressure of the band repairing function of MINISO CV is controlled, the control of 2-2-1-0, end cap and cover plate is controlled based on modular flange in oil-feed loop and oil-discharging circuit control module, all adopt the modularization based on combined type flange control cover plate in MINISO CV, the configurable structure of combined type, difference can be needed by control, the multiple screw connected or gasket mounted pilot control element of on the cover board combination configuration respectively, the corresponding pilot control passage arranged in connection valve block block, realize carrying out various default combination control and independent control to forming four controlled primary valves in chip connection electricity-liquid multi-way valve basic model with two groups of corresponding main functional control module valve blocks.See Fig. 4,9a-9e, 12 and Figure 13.They respectively show modular new scheme and the typical products of some different controls and function combination.

Further, the modularized combination type electricity liquid multi-way valve system of described employing " three limit guiding valves " main and MINISO CV compact two-way cartridge valve seat valve main, in the main body composition of its electricity-liquid multi-way valve, " oil-feed circuit control module " is though be novel " three limit guiding valves " structure, but it has modularization equally can matching technique feature, as: after in Fig. 6, guiding valve main comprises throttling, pressure compensation assembly is 1-1-1-0 in the structural drawing 6 of Embedded two flow-throughs, 1-1-2-0, both can be direct acting type control also can adopt pilot control type; When adopting pilot control mode, they can by combining with 1-2-1-0,1-3-2-0 in side cover Fig. 4 of combined type flange control cover plate, in fact the pressure compensation assembly (conjunction) of the MINISO CV of divergence type is constituted, and by what control to preset in end cap at two side flanges, to coordinate the control channel of pilot control element and special layout that pressure compensation implements corresponding control and coordination controls.1-2-2-0 is a kind of typical setting in figure 3, and the pilot pressure control unit PI marked in Fig. 9 a-9e is also a kind of setting that comparatively typical case is conventional.

Modularization, " three limit guiding valves " configurable formation of combo can comprise pressure compensation assembly or other functional unit of various combination mode, composition has " the three limit guiding valve " mains of complex controll function, and as one of main functional unit in Novel slice type electricity-liquid multi-way valve main body, by can be used for the control needs in " the four-way loop " that meet different loads standard and feature to the Variant Design of " three limit guiding valves " and combo.To point out especially, Fig. 3,4, the technological scheme shown in 5a, 5b etc., comparatively speaking, a kind of more complicated scheme and product, and at Fig. 9 d, then list in Figure 12, can based on when in conventional spool valves, function comparatively simply controls, " the three limit guiding valves " of corresponding employing comparatively simple type, they can with reference to the processing mode of main guiding valve in conventional construction electricity liquid multi-way valve commutation connection, mainly ensure commutation and with the pattern of throttling Median Function, and carry out flexible simple and easy configuration, to substitute and to meet the electricity-liquid multi-way valve demand for control of general pattern.

The control mode of modularization, configurable " three limit guiding valves " is except adopting the pilot control form based on confession innage pressure self-controlled type shown in schematic diagram Fig. 5 a, 5b, taking suitable technical measures, mainly to arranging necessary control unit and structure in pilot control level, can be implemented in pilot control mode nearly all in traditional approach electricity-liquid multi-way valve product structure equally.Especially electricity-hydraulic control the system of outer fuel feeding low pressure external control and electricity-liquid proportional control mode (outside control mouth is see Fig. 9 e Figure 12) is adopted as everyone knows, outer fuel feeding, low pressure external control is that current conventional construction electricity-liquid multi-way valve and system (comprise multi-joint chip, the all-in-one-piece product of multichannel and scheme), the most frequently used main flow pattern.And the advantage of the present invention program is that it can realize from fuel feeding, high pressure pilot control (internal control).Equally, more further new Variant Design combination is carried out to the combination of " three limit guiding valves " main, take corresponding side end also can form with the mechanism with manual control and grasp " three limit guiding valves " main by the Novel hand of manual control.These, beyond doubt to traditional product scheme and a kind of important supplementing and development of product.This is also control program important in Ben Biming and the innovation of product.

Further, when technological scheme of the present invention and product are implemented, innovative design has been carried out to main valve block block (figure (8)).When total layout of this valve block block, first based on the principle of flowed friction loop decomposed design, from basic model valve block block, set about sliding valve hole and the end cap attachment face of rational deployment's oil-feed circuit control module by the installation of function module main and connection features; The seat valve main mounting hole of " oil-discharging circuit control module " and the attachment face of modular flange cover plate.For outstanding and ensure modularization, can combo and open technical characteristics, determining the modular characteristics based on MINISO CV and the mounting hole with it and attachment face body characteristics and size on the whole, is important foundation in tolerance key element.The corresponding radial dimension that the aperture size of " three limit guiding valves " mounting hole will optionally adopt in the seat valve mounting hole of same size in same MINISO CV, as valve pocket and spool size, when adopting the Outside diameter size of MINISO CV mounting hole, fully can meet " the three limit guiding valves " pick-and-place components of valve core inside and the size needs of matching hole, and when being " three limit guiding valves " Variant Design, such as, give when middle valve pocket will be set and stay radial space, setting can be coordinated owing to relating to mounting hole body and size in two main modules of valve block block simultaneously, when this just effectively improves discrete component combination in existing electricity-liquid multi-way valve, be difficult to situation that is well matched and that coordinate, the modularization of certain also very favourable valve block, the simplification of compactness processing technology and rationalization.

Four attachment faces of two primary modules in basic model valve block block, namely two side end cap attachment faces and upper flange control cover plate attachment face, configuration is also preferential to be adopted with the identical form of flange plate (and end cap) attachment face of MINISO CV same size and size, not only can be good fit with mounting hole, there is higher connection reliability, and give equally and stayed to cover plate, end cover body is reserved with cuboid to both sides wider space when carrying out Variant Design, owing to effectively simplifying structure and the size factor of normalizing attachment face, make this important working surface of the main mating face of valve block block during fabrication, there is identical quality assurance of making peace compared with, and obviously processing is raised the efficiency, reduce costs.

As can be seen here, total arrangement's rationalization of Modular electrical of the present invention-liquid multi-way valve main valve block block, compactness, effectively can process " hole " and " face " problem of very inconvenient solution in the multi-way valve body of conventional construction, therefore there is uniqueness and novelty, fully demonstrate new technological scheme advantage.Simultaneously also by the feature of the general module of the technical program, expand to the modularization of crucial machining element and technique with in rationalization.

The basic model valve block block of the technical program preferentially adopts casting technique directly to form foundry goods or the high strength cast iron section bar through special processes and device fabrication, the predicament that the complicated casting technique that can obviously dissolve becomes restriction middle and high end multi-way valve technical development key is for a long time brought to industry, has important technology and economic implications.In addition due to the hole of this block, the layouts such as face and processing very convenient, be also applicable at small batch or comparatively directly adopt steel forge piece or other light metal section bar under special environment condition.

In addition, repeat the pilot control element mounting hole of similar with valve block block at body combined type flange control cover plate body and end cover body, the layouts such as attachment face, owing to meeting the rationalization of MINISO CV, compactness and the principle such as modularization, standardization, have ensured rationalization and the innovation of new technological scheme of the present invention and product on the whole.Bulk material and main valve block block can be identical and adopt same technique and material.

Below in conjunction with accompanying drawing illustratively according to some typical products that technical solution of the present invention is formed:

Typical products and the system of the modularized combination type electricity liquid multi-way valve of several employing novel combination type guiding valve and MINISO CV (compact two-way cartridge valve) is illustrated in accompanying drawing 9a, 9b, 9c, 9d, 9e, accompanying drawing 10a, 10b, in modularized combination type electricity liquid multi-way valve shown in Fig. 9 a, multi-way valve main body is a kind of basic model main body, being used for two side flanges in control subject controls end caps, also be a kind of flange control cover plate of basic model, the 3-position 4-way electricity liquid commutation of pressure compensation control after it and " three limit guiding valves " formation capable of being combined are with throttling joins; Cover the special setting in portion at two side flange control ends to be used for employing MINI NG3 being installed or meeting ISO4401-02 and CETOP-02 class standard attachment face, and on this two side cover plate, put the gasket mounted miniature two-position four-way pilot-actuated valves that attachment face distinctly can install or the corresponding innovation of symmetrical installation two simultaneously, the four energising-liquid multi-way valve commutation connection with two-position four-way or 3-position 4-way function are combined into by commutation connection main body and two side flanges control end cap.

Another kind of modularized combination type electricity liquid multi-way valve product shown in accompanying drawing 9b, its main body is a kind of basic model main body, in oil-feed circuit control module " three limit guiding valves " with above-mentioned be same basic model, but its two side flange controls the combination that end cap is the flange control end cap of another kind of basic model, and the electricity with multidigit four-way function-liquid that after forming band throttling equally, pressure compensation controls commutates and joins; But because its two side flange control end covers the screw-in cartridge valve of the two-position three way guide electromagnetic direction valve being provided with two identical employing NEWSO CAVITY respectively, its is formed and the another kind of modularized combination type electric liquid multi-way valve product of 9a with different pilot control element " three limit guiding valves ".

In accompanying drawing 9c, shown another kind of modularized combination type electricity liquid multi-way valve product its multi-way valve main body and 9a, 9b is a kind of basic model main body, it is still basic structure that two side flanges control end cap, but be configured with on right side or the left side flange wherein upper lateral part controlled in end cap and meet ISO4401-02 and CETOP-02 class standard attachment face, the corresponding miniature 3-position 4-way control valve adopting manual control plate-type to connect is installed, control end cap with opposite side easy configuration type flange and may be combined with into the 3-position 4-way function electricity-liquid multi-way valve (commutation connection) with Manual lead table control function, further, when employing one innovation have homonymy double electromagnet install and control mode gasket mounted 3-position 4-way electromagnetic priority valve valve time, can form there is 3-position 4-way function electricity-liquid guide 3-position 4-way electricity one liquid multi-way valve commutation join (in figure, not showing further details).

The electricity of modularized combination type shown in Fig. 9 d liquid multi-way valve product, it is characterized in that: in commutation connection main body, relevant " three limit guiding valves " is can meet proportional control needs through Variant Design, proportional control type " three limit guiding valves " main, but its inside still can include throttling inlet pressure compensation assembly, and in two side flange control end lids, both can contain the pilot control level of the independent setting matched to proportional control type guiding valve main and corresponding structure simultaneously, also visual two side differences control to need to add to arrange other structure, be used for connecting main hydraulic fluid port P and execution architecture hydraulic fluid port A, B formation P-A mouth or P-B mouth have the function that proportional flow exports respectively, form the proportional control modular assembly in " the oil-feed loop " of innovation, further, can also be with the oil return draught control type seat valve main of repairing function and corresponding proprietary layout type flange to control the same coupling that pre-sets of cover plate and cooperation control structure with two of two sides about valve block block top of being arranged in connecting main hydraulic fluid port T and execution architecture hydraulic fluid port A, B in this programme, can form, to the return pressure of A, B return opening, there is function that multiple back pressure maybe can continuously change the proportional control of the complexity of control back pressure respectively, form the proportional control modular assembly of " oil return resistance " type of innovation, and the pattern of " oil-feed resistance " or " oil return resistance " proportional control and structure, multiple pattern can be had through modification and configuration, if desired, described " oil return resistance " control unit can also be combined into the comparatively complicated and special requirement being suitable for being engaged in and having " during negative load " and need to carry out the function that energy-conservation and energy storage controls further.

Product shown in Fig. 9 e is aforementionedly adopt outer fuel feeding, the external control pilot control pattern of low pressure external control, Modular electrical-liquid multi-way valve system that novel combination type guiding valve and MINISO CV form, this is a kind of very useful technological scheme and product typical case that preferentially can be used for substituting part traditional product.When adopting external control guide's pattern, comprise main and pilot control loop, can require according to different external control modes to carry out independent configuration and combination accordingly.

Product shown in Figure 10 a is the modularized combination type electricity liquid multi-way valve system adopting new departure, this electric liquid multi-way valve system undertaken integrated by the chip electricity liquid multi-way valve of the illustrated basic models of multiple accompanying drawing such as Fig. 3 connection that commutates, form the system level architecture of plural pieces; Can allocate into and can stack-mounted input join by different demand in this stack-mounted multiplex system, tail joins, middle connection and individual requirement special, form system-level configuration, can carry out automatically controlled with the various standard with computer and PLC and device of CAN or special controller accordingly by comprising, the long-range multiple patterns such as control of shaking control.

Product shown in Figure 10 b is the integral modularized combined electrical liquid multi-way valve system of the configuration based on new technological scheme of the present invention and basic model product, this system it can have the innovative Integral electric-liquid multi-way valve of combination function of (being equivalent to when chip connects) bigeminy, three or more connection.These Novel integral electricity-liquid multi-way valve, have functionally contained the function of input connection, tail connection and the middle connection adopted in slice structure, the conventional and application specific architecture such as special, can form novel combination type integrated electricity-liquid multi-way valve system.

Valve block body in integral modularized combined electrical liquid multi-way valve system shown in Figure 10 b both can adopt as shown in fig. 13 that integral blocks completely, also can adopt the integration of sub-module that the processing connecting its integration valve block block is installed mutually to simplify further, but installation slightly complicates with being connected.Shown in (not giving expression in figure) Figure 13 is only a kind of easy expression, and more complicated in entity, equally, it is abundanter and enriched the modular characteristics of the present invention program and product.This system commutation connection is the system-level composite structure of plural pieces, can allocate into and can stack-mounted input join by different demand in this stack-mounted multiplex system, tail joins, middle connection and individual requirement special, form system-level configuration, can carry out automatically controlled with the various standard with computer and PLC and device of CAN or special controller accordingly by comprising, the long-range multiple patterns such as control of shaking control.

Figure 11 is the hydraulic system principle figure of Fig. 9 a-9e and Figure 10 a-10b product, and equally, it only illustrates roughly incorporating aspects system.

Figure 12 is the product structure signal of a kind of simple structure when adopting externally controlled type pilot control mode.

Figure 13 is that the modularization of the Modular electrical-liquid multi-way valve (commutation connection) adopting combined type guiding valve and MINISO CV can combo, open technical characteristics and constitutional diagram, commutation connection main body (band hatched parts) of typical products of the present embodiment, " three limit guiding valves " and side cover end cap combination 1-0, MINISO CV seat valve main 2-0, valve block block 3-0, all there is signal in fig. 13, its type selecting, assembly can be represented.

Should be noted that the above is only some representative instances in order to illustrate in technological scheme that the present invention is new and products thereof, as everyone knows, based on have modularization, can combo and open technical characteristics product, can be combined into very many " combination product " by Variant Design and configuration, therefore, when not conflicting, they can't limit the present invention.For the technician of this professional domain, the present invention is follow-up can further development and change, as long as within technical characteristics of the present invention and scheme, the change done, replace and improvement etc. all should be included within protection scope of the present invention.

Claims (13)

1. adopt the Modular electrical liquid multi-way valve of novel combination type guiding valve and compact two-way cartridge valve, it is characterized in that: it is by one group one knockdown three limit guiding valve mains, and one group of two compact two-way cartridge valve have repairing and multiple pressure control function cartridge valve seat valve main to two that control double-acting hydraulic cylinder or oil hydraulic motor reversible controlled chamber;

Three limit spool valve core bodys and one group two are inserted into three limit spool valve core bodys inner cartridge valve pressure compensation control units and are combined into novel combination type guiding valve main, and described guiding valve main and two side end caps form the input resistance that oil-feed circuit control module controls in two controlled chamber; The multi-functional pressure control unit composition oil-discharging circuit control module that one group of two compact two-way cartridge valve have a repairing function controls two output resistances of two controlled chamber;

Described oil-feed circuit control module and oil-discharging circuit control module are contained in a valve block block, the electric liquid multi-way valve main body of comprising modules; Comprise pilot control element in two control modules of described electric liquid multi-way valve main body, described pilot control element forms pilot control level.

2. the Modular electrical liquid multi-way valve of employing novel combination type guiding valve according to claim 1 and compact two-way cartridge valve, it is characterized in that: described valve block block, comprise one group two compact two-way cartridge valve seat valve main mounting holes and cover plate attachment face, independent " the three limit guiding valves " mounting hole arranged, two side flanges control end cap attachment face, and it is identical with compact two-way cartridge valve cover plate attachment face that described side flange controls end cap attachment face; By described valve block block mounting hole and attachment face, main hydraulic fluid port P, T, A, B, control port Pc, Tc, LS main auxiliary hydraulic fluid port R, M composition can stack-mounted modular electric liquid multi-way valve body.

3. the Modular electrical liquid multi-way valve of employing novel combination type guiding valve according to claim 1 and compact two-way cartridge valve, is characterized in that: described guiding valve main comprises pressure compensation assembly after throttling, is the structure of Embedded two flow-throughs; Guiding valve main combines by controlling end cap with two side flanges, forms the pressure compensation assembly of the compact two-way cartridge valve of divergence type.

4. the Modular electrical liquid multi-way valve of employing novel combination type guiding valve according to claim 1 and compact two-way cartridge valve, is characterized in that: the control mode of described guiding valve main adopts the wherein a kind of of the pilot control form based on the pressure self-controlled formula from fuel feeding, the low pressure external control based on outer fuel feeding or pilot control form.

5. the Modular electrical liquid multi-way valve of employing novel combination type guiding valve according to claim 1 and compact two-way cartridge valve, is characterized in that: described valve block block has guiding valve through hole, is provided with undercut groove in guiding valve through hole; Valve block block is also provided with the seat valve main mounting hole of two compact two-way cartridge valves and the attachment face of four compact two-way cartridge valve modular flange cover plates.

6. the Modular electrical liquid multi-way valve of employing novel combination type guiding valve according to claim 3 and compact two-way cartridge valve, it is characterized in that: two side flange control ends cover be provided with for assembling employing MINI NG3 or meet ISO4401-02 and CETOP-02 standard attachment face, and these two side flanges control end caps on put the miniature two-position four-way pilot-actuated valve that attachment face upper mounting plate formula connects.

7. the Modular electrical liquid multi-way valve of employing novel combination type guiding valve according to claim 3 and compact two-way cartridge valve, is characterized in that: in oil-feed circuit control module three limit guiding valves and two side flanges control end cap form be with throttling after the electricity-liquid with multidigit four-way function that controls of pressure compensation commutate and join; The commutation of described electricity-liquid is associated in the screw-in cartridge valve that the two side flange control end portions of covering are provided with the two-position three way guide electromagnetic direction valve in two identical employing NEWSO CAVITY holes.

8. the Modular electrical liquid multi-way valve of employing novel combination type guiding valve according to claim 6 and compact two-way cartridge valve, it is characterized in that: two side flange control ends cover to be configured with and meet ISO4401-02 and CETOP-02 class standard attachment face, the corresponding miniature 3-position 4-way control valve adopting manual control plate-type to connect pilot control is installed.

9. the Modular electrical liquid multi-way valve of employing novel combination type guiding valve according to claim 2 and compact two-way cartridge valve, is characterized in that: two side flange control ends cover and are provided with externally controlled type pilot control hydraulic fluid port and pilot control element.

10. the Modular electrical liquid multi-way valve of employing novel combination type guiding valve according to claim 7 and compact two-way cartridge valve, it is characterized in that: in electricity-liquid commutation connection, three limit guiding valves are proportional control type " three limit guiding valves " main, it is inner containing throttling inlet pressure compensation assembly, and contains the pilot control level matched with proportional control type guiding valve main in two side flange control end lids simultaneously.

The Modular electrical liquid multi-way valve of 11. employing novel combination type guiding valves according to claim 7 and compact two-way cartridge valve, is characterized in that: the layout type flange that electricity-liquid commutation connection comprises the oil return draught control type seat valve main of two band repairing functions and the pilot control level of band Prop-pressure control controls cover plate.

The Modular electrical liquid multi-way valve of 12. employing novel combination type guiding valves according to claim 7 and compact two-way cartridge valve, it is characterized in that: this electric liquid multi-way valve carries out integrated for the connection that commutated by multiple chip electricity liquid multi-way valve, forms the system level architecture of plural pieces; This stack-mounted multiplex system has input connection, tail connection, middle connection, special, the configuration of construction system level.

The Modular electrical liquid multi-way valve of 13. employing novel combination type guiding valves according to claim 7 and compact two-way cartridge valve, is characterized in that: this electric liquid multi-way valve system is the Integral electric-liquid multi-way valve system of many combination functions.