WO2014205955A1 - Vanne multivoie électro-hydraulique modulaire utilisant un nouveau distributeur à tiroir combiné et une miniso cv - Google Patents

Vanne multivoie électro-hydraulique modulaire utilisant un nouveau distributeur à tiroir combiné et une miniso cv Download PDF

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Publication number
WO2014205955A1
WO2014205955A1 PCT/CN2013/085005 CN2013085005W WO2014205955A1 WO 2014205955 A1 WO2014205955 A1 WO 2014205955A1 CN 2013085005 W CN2013085005 W CN 2013085005W WO 2014205955 A1 WO2014205955 A1 WO 2014205955A1
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Prior art keywords
valve
control
miniso
electro
hydraulic
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PCT/CN2013/085005
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English (en)
Chinese (zh)
Inventor
朱耀义
黄人豪
顾俊
孙灿兴
楼申琦
Original Assignee
杭州爱力领富科技有限公司
上海人豪液压技术有限公司
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Publication of WO2014205955A1 publication Critical patent/WO2014205955A1/fr

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Classifications

    • 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
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0832—Modular valves
    • F15B13/0839—Stacked plate type valves
    • 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
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0832—Modular valves
    • F15B13/0835—Cartridge type valves
    • 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
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0878—Assembly of modular units
    • F15B13/0896—Assembly of modular units using different types or sizes of valves
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve

Definitions

  • the invention relates to the technical field of hydraulic control systems, in particular to a modular electro-hydraulic multi-way control valve.
  • BACKGROUND OF THE INVENTION The Chinese invention patent proposed by the applicant: 201210376577.3 "Modularization using a compact two-way cartridge valve Combined electric one-liquid multi-way valve system", the applicant has also proposed the Chinese invention patent: 201010280504 "Compact two-way cartridge valve with combined flange control cover" (compact two-way cartridge valve Called "MINISO CV”).
  • MISO CV Compact two-way cartridge valve with combined flange control cover
  • the invention is based on the above patents and purposes, and proposes another "electric one-liquid multi-channel with innovative features" Description
  • the present invention is equally applicable to circuit combinations based on electro-hydraulic reversing valves in existing industrial hydraulic applications, as well as control occasions including special requirements for the environment or special purposes.
  • the present invention is also a new effort to create a new MINISO CV-based modular combined electro-hydraulic control product and technology that can be combined with mobile hydraulic (MH) and industrial hydraulic (IH).
  • the new electric one-liquid multi-way valve product and technical solution proposed by the invention is also based on the relevant theory and practice of "hydraulic resistance circuit", combined with engineering application for the double-acting hydraulic cylinder or hydraulic motor of the working machine in a typical mobile machine.
  • the characteristics of a reversible controlled-cavity hydraulic resistance loop are comprehensively analyzed and found in the application of mobile hydraulic (MH): Based on the typical four-way circuit of the above-mentioned double-acting hydraulic cylinder or hydraulic motor, the principle scheme and industrial hydraulic pressure
  • (IH) is basically the same, but with obvious features, too, Instruction manual
  • the circuit connecting the high-pressure oil from the oil source to the two controlled chambers is generally referred to as an "input circuit” (or an oil inlet circuit), and
  • the circuits that connect the two controlled chambers to the low pressure side are collectively referred to as the “output circuit” (or “oil drain circuit”).
  • the two circuits show that they have different hydraulic resistance and circuit characteristics. Therefore, they are structurally relatively independent and decomposable.
  • the need and coordination of the pump device and load characteristics, most of the reversing "inlet circuit" before the main spool throttle or after throttling will be set with different types of pressure compensation components and combinations, commonly used “throttle Pre-compensation "or” post-throttle compensation” loop combination.
  • the technical solution adopted is a so-called spool post-throttle compensation form, or a load-independent flow distribution system.
  • the compensating device is mostly an independent threaded cartridge type of inlet pressure compensating element or an in-line, insertable component assembly and is mounted in the valve body. They can be used in conjunction with the "inlet circuit" to complete the valve (reversing in-line)
  • Post-throttle compensation or pre-throttle compensation for P-A or P-B to meet the needs of different oil pump and load systems and energy-saving controls.
  • the secondary relief valve independently set in Figure 1 is considered to be "input resistance”, but in fact, it is used as a combination of output resistance and “replenishment” in the “exhaust circuit”, mainly from A- T, ⁇ - ⁇ The role of pressure limiting and oil replenishment in the circuit.
  • the manual uses a new combined slide valve and MINISO CV modular electro-hydraulic multi-way valve, which is characterized by: It consists of a combined three-stage spool valve main stage, and a set of two MINISO CVs with oil and more
  • the pressure control function inserts the valve seat valve main stage to control two reversible controlled chambers of the double-acting hydraulic cylinder or the hydraulic motor;
  • the three-side spool valve body and a set of two cartridge valve pressure compensation control components inserted into the three-side spool valve body are combined into a new combined spool main stage, the spool main stage and two sides
  • the end cap constitutes an oil inlet loop control module to control the input resistance in the two controlled chambers
  • a set of two MINISO CV multi-function pressure control components with an oil filling function constitutes an oil drain loop control module to control two controlled chambers Two output resistances;
  • the oil inlet loop control module and the oil drain loop control module are installed in a valve block block to form a modular electro-hydraulic multi-way valve main body; the two control modules of the electro-hydraulic multi-way valve main body include pilot control Element, the pilot control element constitutes a pilot control stage.
  • the valve block block comprises a set of two MINISO CV compact two-way cartridge valve seat main stage mounting holes and a cover mounting surface, and an independently arranged "three-sided slide valve" mounting hole; Block body mounting hole and mounting surface, main port P, T, ⁇ , ⁇ , control port Pc, Tc, LS main auxiliary port R, M form a modular electro-hydraulic multi-way valve that can be connected in a chip body.
  • the main stage of the spool valve comprises a post-throttle pressure compensating component, which is an embedded two-way type structure; the main stage of the spool valve is combined with two side flange control end caps to form a separate MINISO CV pressure. Compensation component.
  • the control mode of the main stage of the spool valve adopts a self-fueling high-pressure self-controlled pilot control mode, one of a low-pressure external control or a pilot control mode based on external oil supply.
  • the valve block block has a sliding valve through hole, and the sliding valve through hole is provided with a sinking groove; the valve block block is further provided with two MINISO CV seat valve main stage mounting holes and four MINISO CV combined type Flange cover Explain the book installation surface.
  • the two side flange control end caps are provided with MINI NG3 or ISO4401 -02 and CETOP-02 standard mounting faces for mounting, and the plate mounting is mounted on the upper mounting surface of the two side covers.
  • the three-side slide valve and the two side flange control end caps in the oil inlet loop control module constitute an electric-liquid commutating connection with multi-position four-way function with pressure compensation control after throttling; the electric one-liquid commutation
  • two identical threaded cartridge valves of the two-position three-way first conductive magnetic directional valve using the NEWSO CAVITY hole are provided.
  • the two side flange control end caps are equipped with standard mounting surfaces conforming to ISO4401-02 and CETOP-02, and are equipped with corresponding miniature three-position four-way control valves with manual control type plate connection pilot control.
  • the two side flange control end covers are provided with an externally controlled pilot control port and a pilot control element.
  • the electric one-liquid reversing three-way slide valve is a proportional control type "three-side slide valve" main stage, which contains a pre-throttle pressure compensation component, and both flange control end caps contain both proportional control type
  • the pilot control stage and the corresponding structure of the main stage of the spool contain both proportional control type
  • the electric-to-liquid reversing coupling includes a pilot control stage matched with a proportional control pressure valve, two oil return resistance control type seat valve main stages with a replenishing function, and a configuration type flange control cover.
  • the electro-hydraulic multi-way valve system is integrated by a plurality of chip type electro-hydraulic multi-way valves to form a system-level structure of a plurality of pieces; the multi-connected system of the chip type has an input connection, a tail connection, and an intermediate connection. Dedicated, constitutes a system-level configuration.
  • the electro-hydraulic multi-way valve system is a monolithic electric one-liquid multi-way valve system with multiple combined functions. Compared with the prior art, the present invention has outstanding effects in the following aspects:
  • the new technical solution and its combination product "input circuit” absorb some of the advantages of the spool valve structure in throttling control, while avoiding some of its inherent shortcomings, adopting a new type
  • the structure of the main spool valve with three main control edges (throttle ports), referred to as the "three-sided slide valve” and can be controlled based on the MINISO CV electric-liquid pilot control, through the combined flange control cover, Pilot control elements and combinations on the cover plate (both switch type and proportional control type) or diversified pilot control mode for effective commutation and throttling of the "three-sided slide valve” And related controls.
  • the innovative "three-sided slide valve” has an obvious modularity and can be combined with technical features, in particular by innovatively setting modular functional components or structures inside the spool, for example, as needed on the "three sides" Slip Description
  • valve on both sides of the valve core, the corresponding one-way valve assembly, pressure compensation component and other functional components can be inserted separately or simultaneously.
  • "Three-side slide valve” spool movement, spring centering, stroke limit or stroke detection ( LVDT can be achieved by setting the side cover of the MINISO CV combined flange control cover (or variant) mounted on the corresponding two sides of the valve body.
  • the "three-sided slide valve” is inside the spool.
  • the check valve components, pressure compensation components, etc. are based on the inserts and variants in the MINISO CV.
  • the combined, modular "main spool” assembly and two-sided modular flange-controlled cover Modular end caps and body and internal passages form a new "inlet circuit" (input circuit) control combination.
  • This modular configurable control combination, "three-sided slide valve” is traditionally slippery
  • the main structure of the valve spool is greatly innovative and designed. Firstly, according to the structural characteristics of the three orifices, the total length of the spool body of the main valve of the spool is significantly shortened and the diameter is correspondingly increased (the spool length is fine). Ratio significantly increased), with traditional products"
  • the side slide valve “the main stage has obvious differences and structural features, and at the same time more uses the relevant components and variant design of MINISO CV. Therefore, the new "combined slide valve" in the technical solution of the present invention is an original innovation.
  • valve block block processing technology of the three-side slide valve and its assembly body can be fully realized more rationally and simply, and the materials are more diversified, thereby effectively solving the two core components of the main-stage slide valve and the valve body in the conventional product.
  • the problem of "controllability” and “manufacturability” caused by factors overcomes the inadequacy and the key to the difficulty of achieving modular, configurable and open technical features. This is also very positive for the process and supply chain optimization of the electrotechnical multi-way valve with high technical content, and even more environmentally friendly and sustainable improvement.
  • the MINISO CV return control unit is a pressure control unit with multiple pressure controls or combinations and replenishment. It consists of a seat valve main stage CVI with a replenishing function and a matched combination of various pressure control and combined flange control cover CVC. It integrates direction, pressure and other control in the pilot control. In the pilot control mode, it can have both switch and proportional.
  • the "Output Loop Control Module” can be composed of two innovative MINISO CV oil return control components. Similarly, according to different control requirements, it can be flexibly and conveniently carried out through modular, configurable and open features. A variety of combinations, which together with the valve block block and associated structures, can be combined into a diverse and individualized set to meet the different needs of "drainage loop" control in different mainframe or electro-hydraulic multi-way valve systems.
  • the patented technical solution adopts the modular, configurable and open technical features of MINISO CV and is one of the key technologies. Because MINISO CV is very beneficial to advanced manufacturing and management modes such as “mass customization”, “agile development” and “lean manufacturing”, it is conducive to expanding the scale of production and reducing costs, which is conducive to improving product quality and shortening the lead time. Therefore, the invention based on MINISO CV has a very positive significance for the Chinese hydraulic industry to actively get rid of the excessive dependence on existing foreign traditional products and technical solutions, form China's independent technology, and enter the high-end field of mobile hydraulic control.
  • the "three-side slide valve” valve hole in the block is a through hole, which is used to match the mating part of the spool valve spool to ensure high precision by honing and other processing techniques, since only a small number of undercut grooves are used in the hole.
  • the straight hole diameter is large, so it can fully guarantee the better processing and mating performance, shorten the processing time and so on.
  • the basic valve block block has a shorter flow path in the valve body, and the layout is compact and simple, and the resistance loss along the path is small.
  • valve block block reserves a relatively large space in the upper part of the middle portion, considering that when the chip connection is required for the variant design, a relatively compact inter-layer functional component or accessory can be disposed between the layers.
  • Figure i is a typical schematic diagram of the commutation of an electric-to-liquid multi-way valve using the main stage of a conventional spool valve structure.
  • Figure 2 is a schematic diagram of a modular modular electric-to-liquid multi-way valve using a MINISO CV compact two-way cartridge valve.
  • Fig. 3 is a structural schematic view of a modular electro-hydraulic multi-way valve (commutated basic product) using a combined slide valve and MINISO CV.
  • Figure 4 is an exploded view of the product of Figure 3.
  • Figure 5a is a schematic diagram of the hydraulic circuit of the product of Figure 3 (pilot control internal control).
  • Figure 5b is a schematic diagram of the hydraulic circuit of the product of Figure 3 (pilot control external control).
  • Figure 6 is an exploded view of the "three-sided slide valve" in the main stage of the combined slide valve of Figure 3.
  • Figure 7a is a schematic diagram of the control assembly (internal control) of MINISO CV with oil and various pressure controls in Figure 3.
  • FIG. 7b is a schematic diagram of the MINISO CV with charge and multiple pressure control control components (simple external control) in Figure 3.
  • Figure 8 is a perspective view of the body valve block block of Figure 3.
  • Figure 9a shows a simplified outline of a two-position three-way pilot valve with two threaded connections.
  • Figure 9b shows a simplified outline of the pilot control of a proportional valve with two threaded connections.
  • Figure 9c shows a simplified outline of the two-panel mounting face MINI two-position four-way reversing valve.
  • Figure 9d shows a simplified outline of the plate mounting surface and the MINI three-position four-way manual control valve.
  • Figure 9e shows an end cap with an externally controlled hydraulic port.
  • Figure 10a is a schematic diagram of a multi-piece modular electro-hydraulic multi-way valve system based on the product technical solution of Figure 3.
  • Figure 10b is a simplified outline of the integral valve system (b) of Figure 10a.
  • FIG 11 Schematic diagram of the hydraulic system of the product (internal control).
  • Fig. 12 is a schematic diagram showing the commutation structure of an electric-liquid multi-way valve using a typical main stage of a conventional spool valve structure.
  • Figure 13 shows modular, configurable, open technical features and a combination of modular spool valves and MINISO CV modular electro-hydraulic multi-way valves (commutation).
  • Oil inlet control module consisting of the main valve of "three-side slide valve” and the control cover on both sides
  • a modular modular electro-hydraulic multi-way valve system technology and product using a new combined slide valve main stage and a MINISO CV compact two-way cartridge valve seat main stage combination see Fig. 3, Fig. 5a, Fig. 5b Figure 9, Figure 10, Figure 12, Figure 13, it consists of a set of innovative combined "three-sided spool" main stage, see Figure 3, Figure 1-1-0, and a set of two MINISO CV has the main stage of the cartridge valve and the various pressure control functions. See 2-0 in Figure 3, 2-1-0 in Figure 7a, 7b to control the double-acting cylinder or fluid.
  • valve block block assembled in the innovative design is shown in Figure 3, Figure 4, Figure 5a, Figure 5b, 3-0, Figure 9a-9e, 10a, 10b, 12 and the modular electro-hydraulic multi-way valve body. a section with a profile, further, the body is guided by two control modules, which are 2-1-0, 2-2-0 in the MINISO CV combined flange control cover (see Figure 3).
  • the above-mentioned electro-hydraulic multi-way valve body and pilot control stage constitute a technical scheme of a modular electro-liquid multi-way valve system adopting a novel combined slide valve and MINISO CV and shown in Figs. 3, 4, 9a-9e, 12, 13
  • the typical product, especially Figure 13, shows the modularity of the technical solution of the present invention in a more obvious and intuitive manner, and can be matched with the distinctive technical features.
  • Figure 2 2-0, 1-0 is the basic block in the main valve block of the present invention.
  • Figure 3, 4, 3 -0 the main stage layout inside the valve block block is shown in the perspective view of Figure 8, which consists of a set of two MINISO CV compact two-way cartridge seat valve main stage mounting holes, see MINISO CV/CVH in Figure 8; 2-2-l-0, 2-ll-0 and cover mounting valve face MINISO CV/CV/CVF 2-2-2-0, 2-1-2-0, a separate setting of "three-sided slip Valve "mounting hole (SP/H1-0) or two side end flange mounting faces (MINISO CV/SP/(Fl-l), (Fl-2); these (seat valve type) main stage mounting holes, Cover mounting surface and spool mounting holes, end cap mounting surfaces and their respective main oils Instructions port P, T, ⁇ , ⁇ and a number of pilot control channels, auxiliary control ports, etc.
  • the control module is based on a modular flange control end cover and cover plate. Both are modular and modular configurable structures based on the combined flange control cover in MINISO CV. They can be used on the cover according to different control requirements.
  • a plurality of screw-connected or plate-connected pilot control elements are combined, and corresponding pilot control channels are provided in the block body to realize four controllable main valves in the basic type of the one-piece electric multi-way valve Mouth and
  • the two groups should be the primary function of the valve block control module that various combinations of pre-control and individual control. See Figures 4, 9a-9e, 12 and Figure 13. They showcased new modular and typical products with different combinations of control and functionality.
  • the modular combined electro-hydraulic multi-way valve system adopting the "three-side slide valve” main stage and the MINISO CV compact two-way cartridge valve seat main stage, the main body of the electric one-liquid multi-way valve
  • the "inlet oil circuit control module” is a new "three-sided slide valve” structure, but it also has a modular and configurable technology.
  • the specification sign such as: Figure 6 shows that the main stage of the spool valve contains the throttle after the pressure compensation component is embedded in the two-way type structure.
  • Figure 61-1-1-0, 1-1-2-0 can be Direct-acting control can also be used with pilot-controlled type; when adopting pilot-controlled mode, they can control the side cover of the cover plate with the combined flange.
  • Figure 1-2-1-0, 1-3-2 The combination of -0 actually constitutes the pressure compensation component (combined) of the separate MINISO CV, and can be controlled by the pilot control in the two side flange control end caps, which can control the pressure compensation accordingly.
  • the components and the specially arranged control channels are coordinated and coordinated for control.
  • 1-2-2-0 is a typical arrangement
  • the pilot pressure control element PI indicated in Figs. 9a-9e is also a typical and commonly used arrangement.
  • the modular, configurable "three-sided slide valve” can be configured to form pressure compensation components or other functional components with different combinations, forming a "three-sided slide valve” main stage with composite control function, and as a new type of chip
  • One of the main functional components in the main body of a one-way multi-way valve can be used to meet the control requirements of the "four-way circuit" of different load systems and features by the design and matching of the "three-side slide valve".
  • the technical solutions shown in Figures 3, 4, 5a, 5b, etc. are relatively more complex solutions and products, and are listed in Figure 9d, Figure 12, and can be based on traditional sliding.
  • the function of the valve is relatively simple, the relatively simple "three-side slide valve" is adopted.
  • They can refer to the traditional structure of the electro-hydraulic multi-way valve to switch the middle-stage main-stage slide valve, mainly to ensure the commutation and In the form of throttling median function, and flexible and simple configuration, to replace and meet the general type of electric one-liquid multi-way valve control needs.
  • the modular and configurable "three-sided slide valve” control method adopts the appropriate technical measures, in addition to the self-supply high-pressure self-control pilot control mode shown in the schematic diagrams 5a, 5b, mainly
  • the necessary control elements and structures are set in the pilot control stage, and almost all pilot control methods in the conventional electric-liquid multi-way valve product structure can be realized.
  • the electric-liquid control and the electro-hydraulic proportional control method using external low-pressure external control are well known.
  • External oil supply, low-voltage external control is the traditional structure electric one-liquid multi-way valve.
  • systems including multi-piece, multi-channel integrated products and Description Book scheme), the most commonly used mainstream style.
  • the advantage of the solution of the invention is that it can achieve self-fueling, high-pressure pilot control (internal control).
  • internal control internal control
  • a new variant design combination of the main assembly of the "three-side slide valve” is carried out, and the corresponding side-side and manual-operated mechanisms can also constitute a new type of hand-operated "three-side slide valve” that is manually operated. level.
  • the technical solution and the product of the present invention are innovatively designed for the main-stage valve block block (Fig. 8).
  • the overall layout of the valve block block firstly based on the principle of the hydraulic resistance circuit decomposed design, from the basic valve block block according to the installation and connection characteristics of the functional module main stage, the layout of the oil inlet circuit control module is rationally arranged.
  • the MINISO CV-based modular features are determined in general and the bearing elements and mounting features and dimensions of the mounting holes are important.
  • the hole size of the "three-sided slide valve” mounting hole will be the same as the corresponding radial dimension of the seat valve mounting hole of the same specification as MINISO CV, such as the valve sleeve and the spool size, at the big end of the MINISO CV mounting hole.
  • it can fully meet the size requirements of the inserts and the matching holes in the "three-side slide valve” valve core, and when designing the "three-side slide valve” variant, for example, to set the intermediate valve sleeve to leave the radial direction Space, because the two main-stage modules of the valve block block can be coordinated and set at the same time, which effectively improves the combination of individual components in the existing electric-liquid multi-way valve, which is difficult to match and coordinate.
  • the situation is also very advantageous for the simplification and rationalization of the modular, compact machining process of the valve block.
  • the four mounting faces of the two main modules namely the two-side end cover mounting surface and the upper flange control cover mounting surface
  • the same flange cover as MINISO CV
  • the same type and size of the mounting surface not only can be well matched with the mounting hole, but also has high connection reliability, and also retains a rectangular body when the cover plate and the end cover body are modified.
  • Extending to both sides The specification space, because it effectively simplifies the structural and dimensional elements of the mounting surface, makes the important working surface of the main assembly surface of the valve block block have the same consistency and the same quality guarantee during manufacture, and the processing is improved. , cut costs.
  • the basic valve block of the technical solution preferentially adopts a casting process to directly form a casting or a high-strength cast iron profile manufactured by a special process and equipment, which can obviously resolve the complicated casting process which is the key to the development of the medium and high-end multi-way valve technology for a long time.
  • the dilemma brought by the industry has important technical and economic significance.
  • due to the convenient layout and processing of the holes, faces and the like of the block it is also suitable for directly using steel forgings or other light metal profiles in small and medium batches or under special environmental conditions.
  • the combination of the flanged control cover body and the end cap of the control element mounting hole similar to the body and the valve block block is re-stated.
  • the layout of the mounting surface is rationalized, compacted and modularized in accordance with MINISO CV. The principles of standardization and so on have generally guaranteed the rationalization and innovation of the new technical solutions and products of the present invention.
  • the body material can be the same as the main valve block block and the same process and materials can be used.
  • FIGS 9a, 9b, 9c, 9d, 9e, 10a, 10b Typical product and system of modular combined electro-hydraulic multi-way valve for CV (compact two-way cartridge valve), the basic type of multi-way valve body in the modular combined electro-hydraulic multi-way valve shown in Figure 9a
  • the main body is used to control the two side flange control end covers in the main body, and is also a basic type flange control cover plate, which can be combined with the "three-side slide valve" to form a three-stage throttle compensation control.
  • the manual and the CETOP-02 standard mounting surface, and the upper mounting surface of the two side covers can be installed separately or symmetrically to install two corresponding innovative plate-connected miniature two-position four-way pilot control valves.
  • the reversing main body and the two-side flange control end cover are combined into a four-in-one-one-one-way multi-way valve commutation with two-position four-way or three-position four-way function.
  • FIG. 9b Another modular combined electro-hydraulic multi-way valve product shown in Fig. 9b is a basic type main body, and the "three-side slide valve" in the oil inlet loop control module is the same basic type as described above, but it
  • the two side flange control end caps are a combination of another basic flange control end cap, which also constitutes a multi-position four-way function electric-liquid reversing connection with throttling pressure compensation control;
  • Two identical flanged control end caps are respectively provided with two identical threaded cartridge valves of NEWSO CAVITY two-position three-way first-conducting magnetic directional valve, which constitute a "three-side slide valve” with a different pilot control element of 9a.
  • Another modular combined electro-hydraulic multi-way valve product is a basic type main body, and the "three-side slide valve" in the oil inlet loop control module is the same basic type as described above, but it
  • the two side flange control end caps are a combination of another basic flange
  • FIG. 9c another modular combined electro-hydraulic multi-way valve product is shown in which the multi-way valve main body and 9a, 9b are a basic type main body, and the two side-mounted flange control end covers are still basic structures.
  • the upper side of the right or left flange control end cover there is a standard mounting surface conforming to ISO4401-02 and CETOP-02, and a corresponding miniature three-position four-way connected by manual operation type plate is installed.
  • control valve and the other side of the simple configuration flange control end cover can be combined into a three-position four-way function electric one-liquid multi-way valve (commutation linkage) with manual pilot operation; further, when adopting an innovative one with the same
  • the three-position four-way electromagnetic pilot valve connected by the plate type can form a three-position four-electric one-liquid multi-way valve commutation with three-position four-way function electric-liquid pilot (not shown in the figure) Show further details).
  • the modular combined electro-hydraulic multi-way valve product shown in Fig. 9d is characterized in that: the relevant "three-side slide valve” in the reversing main body is designed to meet the needs of proportional control, and the proportional control type "three-side slide"
  • the valve is "main stage, but it can still contain a pre-throttle pressure compensation component inside, and the flange control end caps on both sides can contain a separate set of pilot control stages that match the main stage of the proportional control type spool.
  • the product shown in Figure 9e is the above-mentioned external control pilot type with external oil supply, low pressure external control, new modular slide valve and MINISO CV modular electric one-liquid multi-way valve system.
  • Useful technical solutions and product models that can be used to replace some traditional products.
  • the external control pilot type including the main stage and the pilot control loop, separate configuration and combination can be required according to different external control modes.
  • the product shown in Fig. 10a is a modular combined electro-hydraulic multi-way valve system adopting a new scheme, and the basic type electro-hydraulic multi-way valve of the electro-hydraulic multi-way valve system illustrated by a plurality of drawings shown in Fig. 3 and the like
  • the commutation is integrated to form a system-level structure of a plurality of slices; in the multi-system of the chip connection, the input connection, the tail connection, the intermediate connection and the dedicated connection of the individual requirements can be matched according to different requirements.
  • the product shown in Fig. 10b is a whole of the configuration of the new technical solution and the basic product based on the present invention.
  • Description The modular modular electro-hydraulic multi-way valve system which can have an innovative integral one-electrople multi-way valve (combined to a two-piece, three-way or more combined function).
  • These new integrated electro-hydraulic multi-way valves have functionally included the functions of common and special structures such as input coupling, tail coupling, intermediate coupling, and dedicated coupling in the chip structure, which can constitute a new combined integral type electric system.
  • the valve block body in the integral modular combined electro-hydraulic multi-way valve system shown in Fig. 10b can be either a complete monolithic block as shown in Fig.
  • Figure 11 is a schematic diagram of the hydraulic system of the products of Figures 9a-9e and Figures 10a-10b, again, which only roughly shows a partial combination system.
  • Figure 12 is a schematic diagram of the product structure of a simple structure when the externally controlled pilot control mode is adopted.
  • Figure 13 is a modular configurable, open-ended technical feature and combination diagram of a modular electro-hydraulic multi-way valve (commutation linkage) using a combined slide valve and MINISO CV. The typical product is reversed in this embodiment. Joint body (with section line section), "Trilateral slide valve” and side cover end cover combination 1-0, MINISO CV seat valve main stage 2-0, valve block block 3-0, are shown in Figure 13 , can indicate its selection and assembly.

Abstract

La présente invention concerne une vanne multivoie électro-hydraulique modulaire utilisant un nouveau distributeur à tiroir combiné et une MINISO CV, comprenant un groupe d'étage principal à distributeur à tiroir à trois voies combiné (1-1-0) et un groupe d'étage principal de deux vannes MINISO CV (2-1-1-0), un siège de vanne à cartouches possédant des fonctions de rechargement d'huile et de commande multi-pression, toutes deux utilisées pour commander deux chambres commandées réversibles d'un vérin hydraulique double action ou d'un moteur hydraulique ; la vanne multivoie électro-hydraulique peut être appliquée aux domaines de l'hydraulique mobile (MH) et de l'hydraulique industrielle (IH), appliquée aux machines, aux appareils et à l'ingénierie comprenant des boucles de commande électro-hydrauliques, et à des scénarios dans lesquels des exigences spéciales sont imposées sur l'environnement ou à des scénarios relatifs à des applications spéciales. La présente invention construit une nouvelle solution de produit en accord avec les exigences nouvelles et diversifiées des machines mobiles pour la technologie hydraulique à travers l'utilisation d'un assemblage modulaire et d'un style ouvert en accord avec les besoins des utilisateurs.
PCT/CN2013/085005 2013-06-26 2013-10-11 Vanne multivoie électro-hydraulique modulaire utilisant un nouveau distributeur à tiroir combiné et une miniso cv WO2014205955A1 (fr)

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CN103644158B (zh) * 2013-12-26 2015-12-02 太重集团榆次液压工业有限公司 电磁先导滑阀式液压换向阀
CN104033438B (zh) * 2014-06-09 2016-03-02 烟台宝钢钢管有限责任公司 一种多功能防液压卡紧电液换向阀先导阀
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CN109026913B (zh) * 2018-10-31 2024-01-02 上海人豪液压技术有限公司 带有rhcv型电液控制终端em的多功能一体化液压缸
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