WO2014067204A1 - 扩展阀块 - Google Patents

扩展阀块 Download PDF

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Publication number
WO2014067204A1
WO2014067204A1 PCT/CN2012/085819 CN2012085819W WO2014067204A1 WO 2014067204 A1 WO2014067204 A1 WO 2014067204A1 CN 2012085819 W CN2012085819 W CN 2012085819W WO 2014067204 A1 WO2014067204 A1 WO 2014067204A1
Authority
WO
WIPO (PCT)
Prior art keywords
mounting
control valve
port
area
mounting area
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2012/085819
Other languages
English (en)
French (fr)
Inventor
丁雪峰
罗前星
郭岗
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zoomlion Heavy Industry Science and Technology Co Ltd
Original Assignee
Zoomlion Heavy Industry Science and Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zoomlion Heavy Industry Science and Technology Co Ltd filed Critical Zoomlion Heavy Industry Science and Technology Co Ltd
Publication of WO2014067204A1 publication Critical patent/WO2014067204A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803Modular units
    • F15B13/0878Assembly of modular units
    • F15B13/0896Assembly of modular units using different types or sizes of valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803Modular units
    • F15B13/0807Manifolds
    • F15B13/0814Monoblock manifolds
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803Modular units
    • F15B13/0871Channels for fluid

Definitions

  • a four-port control valve is a commonly used plate type valve having a standard mounting surface and can be classified into a pressure valve, a flow valve, a directional valve, and the like.
  • the international standard ISO 4401 has unified and detailed regulations on the dimensions of the four-port control valve mounting surface, so that the mounting surface of the four-port control valve and the four oils to be installed The port control valves are matched.
  • the four-port control valve with the port specification code "02" or "03" is commonly used in small and medium-sized hydraulic systems, or in the control lines of hydraulic systems.
  • Control valves to achieve a certain design function require an expansion valve block that is compact and allows specific port connections.
  • SUMMARY OF THE INVENTION The present invention is directed to an expansion valve block that can accommodate simultaneous installation of two four port control valves, and that is compact in structure, light in weight, and small in size.
  • an expansion valve block comprising: a first installation side and a second installation side which are oppositely disposed; a first control valve installation area, which is disposed on the first installation side, A control valve mounting area includes a first control valve mounting area port and a first control valve mounting area mounting hole; a second control valve mounting area disposed on the first mounting side, and a second control valve mounting area including a second control valve mounting Zone port and second control valve mounting area mounting hole; expansion valve block mounting area, set on the second mounting side, expansion valve block mounting area including expansion valve block mounting area port and expansion valve block mounting area mounting hole; internal oil The inner oil passage is disposed between the first installation side and the second installation side, and communicates with the corresponding oil port on the first control valve installation area, the second control valve installation area and the expansion valve block installation area according to a predetermined oil passage structure; The first control valve mounting area mounting hole includes a mounting hole away from the second control valve mounting area and a mounting hole adjacent to the second control valve mounting
  • a part of the mounting holes of the first control valve mounting area mounting hole and the central axis of a part of the mounting holes of the second control valve mounting area mounting hole are located on the first plane, and the other part of the first control valve mounting area mounting hole is mounted.
  • the central axis of the other portion of the mounting hole with the second control valve mounting area mounting hole is located in a second plane parallel to the first plane.
  • the position of the expansion valve block mounting area port and the expansion valve block mounting area mounting hole on the expansion valve block mounting area on the second mounting side and the first control valve mounting area port on the first control valve mounting area And a position distribution of the first control valve mounting area mounting hole on the first mounting side or a second control valve mounting area port and a second control valve mounting area mounting hole on the second control valve mounting area on the first mounting side
  • the location distribution is the same.
  • the mounting hole of the extended valve block mounting area adjacent to the second control valve mounting area coincides with the mounting hole of the second control valve mounting area adjacent to the first control valve mounting area.
  • the mounting hole of the first control valve mounting area is a threaded hole
  • the mounting hole of the second control valve mounting area near the first control valve mounting area is a through hole
  • the other part of the second control valve mounting area is a thread.
  • the mounting hole of the hole, the expansion valve block mounting area is a through hole
  • a part of the mounting hole of the expansion valve block mounting area is provided with a first counterbore and a second counterbore at one end of the first mounting side.
  • the mounting hole of the extended valve block mounting area adjacent to the first control valve mounting area coincides with the mounting hole of the first control valve mounting area adjacent to the second control valve mounting area.
  • a mounting hole of the extended valve block mounting area adjacent to the first control valve mounting area is disposed between the mounting hole of the first control valve mounting area adjacent to the second control valve mounting area and another partial mounting hole, and the expansion valve block is installed. Another portion of the mounting hole of the zone is disposed between the mounting hole of the second control valve mounting zone adjacent to the first control valve mounting zone and the mounting hole of the first control valve mounting zone adjacent the second control valve mounting zone.
  • the internal oil passage includes a return port and a pressure port.
  • the predetermined oil passage structure comprises: a first oil port in the oil port of the first control valve installation area communicates with a first oil port in the oil port of the expansion valve block installation area, and a second oil port in the oil port of the first control valve installation area
  • the second oil port in the oil port of the expansion valve block installation area is connected
  • the fourth oil port in the oil port of the second control valve installation area is connected with the third oil port in the oil port of the expansion valve block installation area
  • the second control valve is installed in the oil port.
  • the third port in the port is in communication with the fourth port in the expansion port of the expansion valve block, and the third port in the port of the first control valve installation area is in communication with the first port in the port of the second control valve installation area,
  • the fourth port in the first control valve installation area of the first control valve installation area is connected to the second port in the second control valve installation area of the second control valve installation area port; or the first control valve installation area
  • the first oil port in the oil port is in communication with the first oil port in the oil port of the expansion valve block installation area
  • the second oil port in the oil port of the first control valve installation area is connected with the second oil port in the oil port of the expansion valve block installation area
  • the fourth port in the port of the second control valve installation area Expand
  • the third port in the port of the valve block installation area is connected, the third port in the port of the second control valve installation area is connected with the fourth port in the port of the expansion valve block installation area, and the port of the first control valve installation area is connected.
  • the third port is in communication with the second port in the second control valve installation port port
  • the fourth port in the first control valve mounting port port is in communication with the first port in the second control valve mounting port port.
  • a sealing groove is respectively disposed at the oil port of the expansion valve block installation area oil port of the expansion valve block installation area.
  • an expansion valve block is adopted, the expansion valve block includes a first installation side and a second installation side, and the first installation side is provided with a first control valve installation area and a second control valve installation area, The second mounting side is provided with an expansion valve block installation area, the expansion valve block further comprises an internal oil passage, the internal oil passage is disposed between the first installation side and the second installation side, and connects the first control valve installation area according to the predetermined oil passage structure
  • the second control valve installation area and the corresponding oil port on the expansion valve block installation area, the first control valve installation area is symmetric with the center of the second control valve installation area.
  • Fig. 1 is a perspective view showing the structure of an expanded valve block according to an embodiment of the present invention
  • Fig. 2 is a front view showing the expanded valve block according to an embodiment of the present invention
  • FIG. 4 shows a bottom view of an expanded valve block according to the embodiment of FIG. 1.
  • FIG. 4 shows a schematic view of an expanded valve block according to the embodiment of FIG. 1.
  • FIG. 5 shows an expanded valve according to an embodiment of the present invention.
  • FIG. 6 is a schematic view showing a second port connection structure of an expansion valve block according to an embodiment of the present invention;
  • FIG. 7 is a view showing an expansion valve according to an embodiment of the present invention.
  • FIG. 8 is a schematic view showing the structure of the expansion valve block in cooperation with the control valve according to an embodiment of the present invention;
  • FIG. 9 shows the expansion valve block according to the embodiment of FIG. Hydraulic schematic when mated with a control valve;
  • Figure 10 shows an exploded view of the expanded valve block and control valve mounting structure in accordance with the embodiment of Figure 8.
  • LIST OF REFERENCE NUMERALS 10. First control valve mounting area; 11. First counterbore;
  • Electromagnetic reversing valve 60. Pneumatic reversing valve;
  • T1 The second port of the first control valve installation area; B1. The third port of the first control valve installation area;
  • A1 The fourth port of the first control valve installation area; F11. The first installation hole of the first control valve installation area;
  • T2 The second port of the second control valve installation area; B2. The third port of the second control valve installation area;
  • A2 The second port of the second control valve installation area; F21.
  • the second control valve installation area first safety
  • an expansion valve block includes a first installation side and a second installation side which are oppositely disposed, and the first installation side is provided with a first control valve installation area 10 and a first a second control valve mounting area 20, the second mounting side is provided with an expansion valve block mounting area 30, and between the first mounting side and the second mounting side, a first control valve mounting area 10, a second control valve mounting area 20, and The corresponding oil ports on the expansion valve block mounting area 30 are connected to the internal oil passages of the predetermined oil passage structure.
  • the internal oil passage can also be used to connect other side oil holes.
  • the first control valve mounting area 10 includes a first control valve mounting area port P1, Tl, Bl, Al and a first control valve mounting area mounting hole F11, F12, F13, F14, a first control valve mounting area port PI, Tl, Bl, Al include a first control valve installation area first port P1, a first control valve installation area second port Tl, a first control valve installation area third port B1, and a first control valve mounting area fourth Port A1, first control valve mounting area mounting holes F11, F12, F13, F14 include a first control valve mounting area first mounting hole F11, a first control valve mounting area second mounting hole F12, a first control valve mounting area The third mounting hole F13 and the first control valve mounting area fourth mounting hole F14.
  • the first control valve mounting area third mounting hole F13 and the first control valve mounting area fourth mounting hole F14 are disposed on a side away from the second control valve mounting area 20, the first control valve mounting area first mounting hole F11 and the first A control valve mounting area second mounting hole F12 is disposed on a side close to the second control valve mounting area 20.
  • the second control valve mounting area 20 includes a second control valve mounting area port P2, T2, ⁇ 2, ⁇ 2 and a second control valve mounting area mounting hole F21, F22, F23, F24, and a second control valve mounting area port P2.
  • T2 ⁇ 2, ⁇ 2 include a second control valve installation area first port ⁇ 2, a second control valve installation area second port ⁇ 2, a second control valve installation area third port ⁇ 2 and a second control valve installation area fourth Oil port ⁇ 2, second control valve mounting area mounting holes F21, F22, F23, F24 include a second control valve mounting area first mounting hole F21, a second control valve mounting area second mounting hole F22, a second control valve mounting area The third mounting hole F23 and the second control valve mounting area are the fourth mounting holes F24.
  • the second control valve mounting area third mounting hole F23 and the second control valve mounting area fourth mounting hole F24 are disposed on a side away from the first control valve mounting area 10, the second control valve mounting area first mounting hole F21 and the first The second control valve mounting area second mounting hole F22 is disposed on the side close to the first control valve mounting area 10.
  • the expansion valve block mounting area 30 includes expansion valve block mounting area ports P', T', B', A' and expansion valve block mounting area mounting holes Fl ', F2', F3', F4', extended valve block mounting area
  • the port ⁇ ', ⁇ ', ⁇ ', ⁇ ' includes the first port P' of the expansion valve block installation area, the second port T' of the expansion valve block installation area, the third port B' of the expansion valve block installation area, and Expansion valve block installation area fourth port ⁇ ', expansion valve block installation area mounting holes Fl ', F2', F3', F4' including expansion valve block installation area first mounting hole Fl ', expansion valve block installation area second Mounting hole F2', expansion valve block mounting area third mounting hole F3' and expansion valve block mounting area fourth mounting hole F4'.
  • the first control valve mounting zone 10 and the second control valve mounting zone 20 have the same structure and can be used to mount control valves of the same specification.
  • the second control valve mounting area second mounting hole F22 of the F22, F23, F24, the second control valve mounting area, the central axis of the third mounting hole F23 is located on the first plane 41, and the first control valve mounting area mounting hole F11 , the first control valve mounting area second mounting hole F12 of F12, F13, F14, the first control valve mounting area third mounting hole F13, and the second control valve mounting area mounting hole F21, F22, F23, F24
  • the second control valve mounting area first mounting hole F21, the second control valve mounting area, the fourth mounting hole F24 has a central axis on the second plane 42, the first plane and the second
  • first control valve mounting area 10 and the second control valve mounting area 20 are mounted around the first control valve mounting area first mounting hole F11, the first control valve mounting area second mounting hole F12, and the second control valve
  • the second control valve mounting area of the second mounting valve F21, F22, F23, F24, the second mounting hole F21, the second control valve mounting area, the second mounting hole F22, the intersection of the diagonal lines is symmetric, or around the first control a third mounting hole F13 of the valve mounting area, a fourth mounting hole F14 of the first control valve mounting area, and a second mounting hole F23 of the second control valve mounting area of the second control valve mounting area mounting holes F21, F22, F23, F24,
  • the second control valve mounting area is symmetrically centered at the intersection of the diagonal lines of the fourth mounting hole F24.
  • the position of the mounting hole on the expansion valve block needs to be corresponding to the specification of the four-port control valve, and the four-port control valve is four.
  • the mounting holes are not arranged in a rectangular shape, but are arranged in a trapezoidal shape.
  • the length of the upper base of the trapezoid of the first control valve mounting region 10 is n
  • the length of the lower base is m.
  • n>m in order to reduce the volume and weight of the expansion valve block as much as possible when setting the second control valve mounting area 20, two four port control valves need to be arranged side by side.
  • the overall length of the mounting hole on the first side of the expansion valve block may be longer, and the expanded valve block opposite the first side is second.
  • the overall length of the side will be shorter, and the entire expansion valve block needs to meet the overall length of the mounting hole on the upper side of the expansion valve block. Therefore, the size of the expanded valve block that is made will still be large, and this design is not reasonable.
  • the control valve mounting area 20 is set.
  • the first control valve mounting area 10 and the second control valve mounting area 20 are center-symmetrical such that the overall length of the mounting hole on the first side of the expansion valve block is the same as the overall length of the mounting hole on the second side of the expansion valve block. Therefore, the structure of the expansion valve block is made more compact, the volume is further reduced, and the material cost is also reduced.
  • the expansion valve block mounting area 30 needs to be installed in cooperation with the four port control valve mounting surface on the working surface. Therefore, the expansion valve block mounting area 30 includes the four port control valve mounting surface that cooperates therewith. Mirror surface, this mirror surface cannot be used to install any four-port control valve. This mirror surface is only used to mount the expansion valve block on the other four-port control valve mounting surface.
  • the expansion valve block mounting area ports P', T', ⁇ ', A' on the expansion valve block mounting area 30 and the expansion valve block mounting area mounting holes Fl ', F2', F3', F4' are installed in the second The position on the side and the first control valve mounting area port P1, Tl, Bl, Al on the first control valve mounting area 10 and the first control valve mounting area mounting holes F11, F12, F13, F14 on the first mounting side
  • the upper position distribution or the second control valve mounting area port P2, T2, ⁇ 2, ⁇ 2 and the second control valve mounting area mounting holes F21, F22, F23, F24 on the second control valve mounting area 20 are on the first mounting side
  • the position distribution on the same is the same.
  • the four port control valve mounting surface has the same mounting specifications as the four port control valve mounting faces of the first control valve mounting zone 10 and the second control valve mounting zone 20, and the expanded valve block mounting zone 30 includes A mirror image structure of the same mounting area of the control valve mounting area 10 or the second control valve mounting area 20.
  • the extended valve block mounting area first mounting hole F1 ' of the extended valve block mounting area 30 and the central axis of the expanded valve block mounting area fourth mounting hole F4' are located on the first plane 41, and the expanded valve block mounting area is second.
  • the mounting hole F2' and the central axis of the expanded valve block mounting area third mounting hole F3' are located on the second plane 42, which is more convenient for designing the expanded valve block mounting area 30 and further controlling the volume of the expanded valve block . More preferably, the expanded valve block mounting area first mounting hole F1 ' of the extended valve block mounting area 30 coincides with the second control valve mounting area second mounting hole F22 of the second control valve mounting area 20, and the expanded valve block mounting area is The second mounting hole F2' coincides with the second control valve mounting area first mounting hole F21 of the second control valve mounting area 20. In the actual design process, if the mounting hole on the expansion valve block mounting area 30 and the first control valve mounting area
  • the mounting holes on the expanded valve block mounting area 30 and the partial mounting holes on the first control valve mounting area 10 are respectively located on the first plane 41 and the second plane 42, and the second control The mounting holes in the valve mounting area 20 can then be slightly offset without necessarily being located on the first plane 41 and the second plane 42.
  • the mounting hole on the expansion valve block mounting area 30 coincides with a part of the mounting hole on the second control valve mounting area 20, the setting of the mounting hole on the first control valve mounting area 10 is not necessarily required.
  • the expansion valve block may also be configured as an expansion valve block mounting area of the expansion valve block mounting area 30, a third mounting hole F3' and a first control valve mounting area 10 of the first control valve mounting area.
  • Hole F12 coincides, expands
  • the second mounting hole F2' of the valve block mounting area coincides with the first mounting hole F21 of the second control valve mounting area of the second control valve mounting area 20, or the third mounting hole F3' of the expanded valve block mounting area is disposed at the first Between the second mounting hole F12 of the control valve mounting area and the third mounting hole F13 of the first control valve mounting area, the fourth mounting hole F4' of the expanded valve block mounting area is disposed in the first mounting hole F11 of the first control valve mounting area Between the fourth mounting hole F14 of the control valve mounting area, the second mounting hole F2' of the expansion valve block mounting area is disposed in the first mounting hole F12 of the first control valve mounting area and the first mounting hole F21 of the second control valve mounting area Meanwhile, the expansion valve block mounting area first mounting hole F1' is disposed between the first control valve mounting area first mounting hole F11 and the second control valve mounting area second mounting hole F22.
  • the above-described expansion valve block mounting area 30 is disposed such that the overall volume of the expansion valve block is defined by the first control valve mounting area 10 and the second control valve mounting area 20 without being affected by the expanded valve block mounting area 30.
  • the structural influence increases the overall volume of the expansion valve block, so that the volume of the expansion valve block can be reduced as much as possible on the basis of rationally arranging the first control valve installation area 10 and the second control valve installation area 20. More compact.
  • the expansion valve block of the embodiment of the present invention is taken as an example with the four port control valve of the port specification code "03" in the international standard ISO 4401-2005 as shown in FIG. 3, FIG. 8, FIG. 9 and FIG. The structure is specified.
  • the four mounting holes of the first control valve mounting area 10 are each provided as an M5 threaded hole, and the second control valve mounting area of the second control valve mounting area 20 is a third mounting hole F23 and a fourth mounting hole.
  • M5 threaded hole, and second control valve mounting area second mounting hole F22 coincident with expansion valve block mounting area first mounting hole F1' of expansion valve block mounting area 30, and expansion valve block with expansion valve block mounting area 30
  • the second mounting valve mounting area F2 of the mounting area is overlapped.
  • the first mounting hole F21 is provided as a through hole having a diameter of 5.5 mm, and the other two mounting holes of the expanded valve block mounting area 30 are also set to have a diameter of 5.5. Through hole of mm.
  • the second mounting hole F2' of the expansion valve block mounting area and the first mounting hole of the second control valve mounting area are expanded.
  • the expansion valve block mounting area first mounting hole F1 ' and the second control valve mounting area second mounting hole F22 can simultaneously fasten the four port control valve and the expansion valve of the expansion valve block located in the second control valve mounting area 20
  • the second control valve mounting zone third mounting hole F23 and the second control valve mounting zone fourth mounting hole F24 are also only used to secure the four port control valve located in the second control valve mounting zone 20.
  • the four mounting holes of the first control valve mounting area 10 are each provided as a threaded hole for fastening the four port control valve located in the first control valve mounting area 10.
  • a first counterbore 11 and a second counterbore 12 are provided at one end of the expansion valve block mounting area third mounting hole F3' and the expansion valve block mounting area fourth mounting hole F4' at the first mounting side. Since the expansion valve block mounting area third mounting hole F3' and the expansion valve block mounting area fourth mounting hole F4' are only used to fasten the expansion valve block, the head of the fastening screw protrudes the expansion valve block during installation.
  • the mounting surface on the first mounting side is inconvenient for the installation of the four port control valve.
  • the arrangement of the first counterbore 11 and the second counterbore 12 is such that the fastening screw does not protrude from the mounting surface of the first mounting side, avoiding interference of the fastening screw with the four port control valve.
  • the fourth mounting hole F4' is closer to the first control valve mounting area first mounting hole F11 and the first control valve mounting area fourth mounting hole F14. Therefore, the first counterbore 11 and the second counterbore 12 can both be The waist-shaped counterbore, the first control valve mounting area first mounting hole F11 and the first control valve mounting area fourth mounting hole F14 on the first mounting side are also respectively contained in the corresponding waist-shaped counterbore. As shown in FIG. 5 to FIG.
  • the internal oil passage is disposed between the first mounting side and the second mounting side, and The side of the expansion valve block extends inwardly, and connects the first control valve installation area 10, the second control valve installation area 20 and the corresponding oil port on the third control valve installation area, thereby realizing different predetermined oil passages inside the expansion valve block.
  • the internal oil passage can also be used to achieve a specific connection relationship between the side auxiliary ports.
  • BP the first port PI in the first control valve installation zone port P1, Tl, Bl, Al and the first port P in the expansion valve block installation zone port P', T', ⁇ ', A''Connected, the second port Tl of the first control valve installation zone port Pl, Tl, Bl, Al and the second port of the expansion valve block mounting zone port P', T', B', A'T' connected, the second control valve installation area port ⁇ 2, ⁇ 2, ⁇ 2, the fourth port ⁇ 2 in ⁇ 2 and the third oil in the expansion valve block installation area port P', T', B', A' Port B' communication, third control port installation area port P2, T2, ⁇ 2, third port ⁇ 2 in ⁇ 2 and fourth in expansion valve block installation area port P',
  • the external dimensions of the extended valve block, the spatial positional relationship of the mounting surface of the four port control valve and the mirror surface of the first mounting side and the second mounting side are kept unchanged, only by changing the expansion valve block.
  • the internal port passage design can realize the upper and lower port connection relationship as shown in Fig. 6.
  • BP the first port PI and the expansion valve in the port Pl, Tl, Bl, Al of the first control valve installation area
  • the first port P' in the block installation port ports P', T', B', A' is in communication, and the second port Tl and extension in the first control valve mounting port ports P1, Tl, Bl, Al
  • the second port ⁇ ' of the port P', T', B', A' in the valve block installation area is connected, the second port ⁇ 2 of the second control valve installation area port ⁇ 2, ⁇ 2, ⁇ 2, ⁇ 2 and
  • the third port B' of the expansion valve block installation area port P', T', B', A' is connected, and the third port of the second control valve installation area port ⁇ 2, ⁇ 2, ⁇ 2, ⁇ 2
  • the expansion valve block can also connect the first control valve mounting area first port P1 and the first of the first control valve mounting area ports P1, T1, Bl, Al
  • the pressure measuring ports Ml and M2 are connected, and the second port T1 of the first control valve installation area of the first control valve installation area port P1, Tl, Bl, Al is connected with the oil return port L without using the expansion valve.
  • the first port P' of the block mounting area and the second port T' of the expanded valve block mounting area, and the oil port connection relationship of the expanded valve block at this time are as shown in FIG. 8 to FIG. 10 are schematic structural views of the expansion valve block and the four-port control valve according to the embodiment of the present invention, wherein FIG.
  • FIG. 8 is a three-dimensional structure diagram of the combined state of the expansion valve block and the four-port control valve, from FIG. 8
  • the connection relationship between the four port control valve and the expansion valve block can be seen.
  • the method of connection and use of the expansion valve block of the embodiment of the present invention will be more apparent in conjunction with the hydraulic schematic of FIG. As can be seen from Fig.
  • the pneumatic reversing valve 60 and the electromagnetic reversing valve 50 are connected by the oil port on the expansion valve block and the internal oil passage, so that the pneumatic reversing valve 60 and the electromagnetic reversing valve 50
  • the hydraulic pipe connection is no longer required, the length of the hydraulic pipe is shortened, the hydraulic loss is reduced, the type and number of hydraulic components are reduced, the reliability of the hydraulic system is improved, and the structure of the hydraulic system is more compact, energy utilization The rate is further improved.
  • other forms of communication of different configurations between the pneumatic diverter valve 60 and the solenoid reversing valve 50 and the expansion valve block may be achieved by varying the configuration of the internal oil passage. As can be seen from the exploded view of Fig.
  • the electromagnetic reversing valve 50 is mounted in the second control valve mounting region 20 of the expansion valve block, and the pneumatic reversing valve 60 is mounted on the first control valve of the expansion valve block.
  • Installation area 10 The electromagnetic reversing valve 50 is fastened to the second control valve mounting area 20 by two shorter screws, and is fastened to the fourth of the expansion valve block mounting area 30 after passing through the extended valve block by the two longer screws.
  • the port controls the valve mounting surface to ultimately secure the solenoid reversing valve 50 and the expansion valve block to the desired position.
  • the pneumatic reversing valve 60 is engaged with the four threaded mounting holes on the first control valve mounting area 10 by screws and fastened to the first control valve mounting area 10.
  • the expansion valve block is fixedly disposed on the work surface by screws provided in the four through holes on the expansion valve block.
  • the electromagnetic reversing valve 50 is opposite to the mounting direction of the pneumatic reversing valve 60.
  • a plurality of process holes G1, G2, G3, G4, G5, etc. are designed on the side of the expansion valve block, and these process holes are arranged to realize different connections between the corresponding oil ports, and after the design is completed, at the entrance of the process hole
  • a plurality of plugs are provided to block the process holes.
  • a screw plug for sealing the auxiliary port is also provided at the inlet of the auxiliary ports M1, M2 and L.
  • the pipe can be connected according to the required pipe and the required
  • the hydraulic system controls the auxiliary ports, such as opening one or more of the auxiliary ports, connecting the auxiliary ports to other hydraulic lines, or always blocking all auxiliary ports.
  • a sealing groove 31 is provided around the oil port of the expansion valve block mounting area 30 for sealing the connection position of the expansion valve block mounting area 30 when the oil port is engaged with the four port control valve mounting surface 70, To prevent hydraulic oil from flowing out.
  • Various forms of sealing structures may be provided in the sealing groove 31, such as filling a sealing material or setting a 0-ring.
  • the expansion valve block includes a first mounting side and a second mounting side, and the first mounting side is provided with a first control valve mounting area and The second control valve installation area is provided with an expansion valve block installation area, the expansion valve block further includes an internal oil passage, and the internal oil passage is disposed between the first installation side and the second installation side, and is connected according to a predetermined oil passage structure.
  • the first control valve installation area, the second control valve installation area and the corresponding oil port on the expansion valve block installation area, the first control valve installation area is symmetric with the center of the second control valve installation area.
  • the first control valve mounting area of the expansion valve block is symmetric with the center of the second control valve mounting area, so that the space occupied by the mounting holes of the two control valve mounting areas is complementary, so that the valve block has a compact structure, light weight, and volume. Smaller, further reducing the weight of the valve block and reducing the cost.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Housings (AREA)

Abstract

一种扩展阀块,该扩展阀块包括:相对设置的第一安装侧和第二安装侧;第一控制阀安装区(10),设置在第一安装侧,包括第一控制阀安装区油口(P1、T1、B1、A1)和第一控制阀安装区安装孔(F11、F12、F13、F14);第二控制阀安装区(20),设置在第一安装侧,包括第二控制阀安装区油口(P2、T2、Β2、Α2)和第二控制阀安装区安装孔(F21、F22、F23、F24);扩展阀块安装区(30),设置在第二安装侧,包括扩展阀块安装区油口(P'、Τ'、Β'、Α')和扩展阀块安装区安装孔(F1'、F2'、F3'、F4');内部油道;第一控制阀安装区(10)上的第一控制阀安装区油口(P1、T1、B1、A1)和第一控制阀安装区安装孔(F11、F12、F13、F14)与第二控制阀安装区(20)上的第二控制阀安装区油口(P2、T2、Β2、Α2)和第二控制阀安装区安装孔(F21、F22、F23、F24)在第一安装侧的位置呈中心对称布置。该扩展阀块,可以满足两个四油口控制阀的同时安装,而且结构紧凑,重量轻,体积小。

Description

扩展阀块 技术领域 本发明涉及液压系统控制阀安装结构, 具体而言, 涉及一种扩展阀块。 背景技术 四油口控制阀是常用的板式阀, 有标准的安装面, 可分为压力阀、 流量阀、 方向 阀等种类。 为了便于对四油口控制阀进行设计和安装, 国际标准 ISO 4401对四油口控 制阀安装面的尺寸进行了统一、 详细的规定, 使四油口控制阀的安装面与所要安装的 四油口控制阀相匹配。 在实际应用当中, 油口规格代码为" 02"或者" 03"的四油口控制 阀常用在中小型液压系统中, 或者液压系统的控制管路中。 为了满足空间尺寸、 通用 性、 功能扩展等要求, 有时需要在一个油口规格为 "02"或者" 03"的四油口控制阀安装 面上, 安装相同 2个油口规格相同的四油口控制阀, 以实现某种设计功能, 这就需要 一种结构紧凑、 可实现特定油口连通的扩展阀块。 发明内容 本发明旨在提供一种扩展阀块, 可以满足两个四油口控制阀的同时安装, 而且结 构紧凑, 重量轻, 体积小。 为了实现上述目的, 根据本发明的一个方面, 提供了一种扩展阀块, 包括: 相对 设置的第一安装侧和第二安装侧; 第一控制阀安装区, 设置在第一安装侧, 第一控制 阀安装区包括第一控制阀安装区油口和第一控制阀安装区安装孔;第二控制阀安装区, 设置在第一安装侧, 第二控制阀安装区包括第二控制阀安装区油口和第二控制阀安装 区安装孔; 扩展阀块安装区, 设置在第二安装侧, 扩展阀块安装区包括扩展阀块安装 区油口和扩展阀块安装区安装孔; 内部油道, 内部油道设置在第一安装侧和第二安装 侧之间, 按预定油路结构连通第一控制阀安装区、 第二控制阀安装区和扩展阀块安装 区上的相应油口; 第一控制阀安装区安装孔包括远离第二控制阀安装区的安装孔和靠 近第二控制阀安装区的安装孔, 第二控制阀安装区安装孔包括远离第一控制阀安装区 的安装孔和靠近第一控制阀安装区的安装孔, 第一控制阀安装区上的第一控制阀安装 区油口和第一控制阀安装区安装孔与第二控制阀安装区上的第二控制阀安装区油口和 第二控制阀安装区安装孔在第一安装侧的位置呈中心对称布置。 进一步地, 第一控制阀安装区安装孔的一部分安装孔与第二控制阀安装区安装孔 的一部分安装孔的中心轴线位于第一平面上, 第一控制阀安装区安装孔的另一部分安 装孔与第二控制阀安装区安装孔的另一部分安装孔的中心轴线位于与第一平面平行的 第二平面上。 进一步地, 扩展阀块安装区上的扩展阀块安装区油口和扩展阀块安装区安装孔在 第二安装侧上的位置与第一控制阀安装区上的第一控制阀安装区油口和第一控制阀安 装区安装孔在第一安装侧上的位置分布或者第二控制阀安装区上的第二控制阀安装区 油口和第二控制阀安装区安装孔在第一安装侧上的位置分布相同。 进一步地, 扩展阀块安装区的靠近第二控制阀安装区的安装孔与第二控制阀安装 区的靠近第一控制阀安装区的安装孔重合。 进一步地, 第一控制阀安装区的安装孔为螺纹孔, 第二控制阀安装区的靠近第一 控制阀安装区的安装孔为通孔, 第二控制阀安装区的另一部分安装孔为螺纹孔, 扩展 阀块安装区的安装孔为通孔, 扩展阀块安装区的一部分安装孔位于第一安装侧的一端 设置有第一沉孔和第二沉孔。 进一步地, 扩展阀块安装区的靠近第一控制阀安装区的安装孔与第一控制阀安装 区的靠近第二控制阀安装区的安装孔重合。 进一步地, 扩展阀块安装区的靠近第一控制阀安装区的安装孔设置在第一控制阀 安装区的靠近第二控制阀安装区的安装孔和另一部分安装孔之间, 扩展阀块安装区的 另一部分安装孔设置在第二控制阀安装区的靠近第一控制阀安装区的安装孔和第一控 制阀安装区的靠近第二控制阀安装区的安装孔之间。 进一步地, 内部油道包括回油口和测压油口。 进一步地, 预定油路结构包括: 第一控制阀安装区油口中的第一油口与扩展阀块 安装区油口中的第一油口连通、 第一控制阀安装区油口中的第二油口与扩展阀块安装 区油口中的第二油口连通、 第二控制阀安装区油口中的第四油口与扩展阀块安装区油 口中的第三油口连通、 第二控制阀安装区油口中的第三油口与扩展阀块安装区油口中 的第四油口连通、 第一控制阀安装区油口中的第三油口与第二控制阀安装区油口中的 第一油口连通、 第一控制阀安装区油口第一控制阀安装区中的第四油口与第二控制阀 安装区油口第二控制阀安装区中的第二油口连通; 或第一控制阀安装区油口中的第一 油口与扩展阀块安装区油口中的第一油口连通、 第一控制阀安装区油口中的第二油口 与扩展阀块安装区油口中的第二油口连通、 第二控制阀安装区油口中的第四油口与扩 展阀块安装区油口中的第三油口连通、 第二控制阀安装区油口中的第三油口与扩展阀 块安装区油口中的第四油口连通、 第一控制阀安装区油口的第三油口与第二控制阀安 装区油口中的第二油口连通、 第一控制阀安装区油口中的第四油口与第二控制阀安装 区油口中的第一油口连通。 进一步地,扩展阀块安装区的扩展阀块安装区油口的油口处分别设置有密封沟槽。 应用本发明的技术方案, 采用了一种扩展阀块, 该扩展阀块包括第一安装侧和第 二安装侧, 第一安装侧设置有第一控制阀安装区和第二控制阀安装区, 第二安装侧设 置有扩展阀块安装区, 扩展阀块还包括内部油道, 内部油道设置在第一安装侧和第二 安装侧之间, 按预定油路结构连通第一控制阀安装区、 第二控制阀安装区和扩展阀块 安装区上的相应油口, 第一控制阀安装区与第二控制阀安装区中心对称。 将扩展阀块 的第一控制阀安装区与第二控制阀安装区中心对称, 使得两个控制阀安装区的安装孔 所占用的空间实现互补, 使得阀块的结构紧凑, 重量较轻, 体积较小, 进一步地减轻 了阀块的重量, 降低了成本。 附图说明 构成本发明的一部分的附图用来提供对本发明的进一步理解, 本发明的示意性实 施例及其说明用于解释本发明, 并不构成对本发明的不当限定。 在附图中: 图 1示出了根据本发明的实施例的扩展阀块的立体结构示意图; 图 2示出了根据本发明的实施例的扩展阀块的主视结构示意图; 图 3示出了根据图 1的实施例的扩展阀块的俯视结构示意图; 图 4示出了根据图 1的实施例的扩展阀块的仰视结构示意图; 图 5示出了根据本发明的实施例的扩展阀块的第一种油口连接结构示意图; 图 6示出了根据本发明的实施例的扩展阀块的第二种油口连接结构示意图; 图 7示出了根据本发明的实施例的扩展阀块的第三种油口连接结构示意图; 图 8示出了根据本发明的实施例的扩展阀块与控制阀配合时的结构示意图; 图 9示出了根据图 8的实施例的扩展阀块与控制阀配合时的液压原理图; 以及 图 10示出了根据图 8的实施例的扩展阀块与控制阀安装结构分解示意图。 附图标记: 10. 第一控制阀安装区; 11. 第一沉孔;
12. 第二沉孔; 20. 第二控制阀安装区;
30. 扩展阀块安装区; 31. 密封沟槽;
41. 第一平面; 42. 第二平面;
50. 电磁换向阀; 60. 气动换向阀;
70. 四油口控制阀安装面; P1. 第一控制阀安装区第一油口
T1. 第一控制阀安装区第二油口; B1. 第一控制阀安装区第三油 口;
A1. 第一控制阀安装区第四油口; F11. 第一控制阀安装区第一安 装孔;
F12. 第一控制阀安装区第二安装孔; F13. 第一控制阀安装区第三安
F14. 第一控制阀安装区第四安装孔; P2. 第二控制阀安装区第一油 口;
T2. 第二控制阀安装区第二油口; B2. 第二控制阀安装区第三油 口;
A2. 第二控制阀安装区第四油口; F21. 第二控制阀安装区第一安
F22. 第二控制阀安装区第二安装孔; F23. 第二控制阀安装区第三安 装孔;
F24. 第二控制阀安装区第四安装孔; Ρ'. 扩展阀块安装区第一油口;
Τ'. 扩展阀块安装区第二油口; Β'. 扩展阀块安装区第
Α'. 扩展阀块安装区第四油口; F1 '. 扩展阀块安装区第一安装 孔; F2'. 扩展阀块安装区第二安装孔; F3'. 扩展阀块安装区第三安装 孔;
F4'. 扩展阀块安装区第四安装孔。 具体实施方式 下文中将参考附图并结合实施例来详细说明本发明。 需要说明的是, 在不冲突的 情况下, 本申请中的实施例及实施例中的特征可以相互组合。 如图 1至图 4所示, 根据本发明的实施例, 一种扩展阀块包括相对设置的第一安 装侧和第二安装侧, 第一安装侧设置有第一控制阀安装区 10和第二控制阀安装区 20, 第二安装侧设置有扩展阀块安装区 30, 第一安装侧和第二安装侧之间设置有将第一控 制阀安装区 10、第二控制阀安装区 20和扩展阀块安装区 30上的相应油口按照预定油 路结构连通的内部油道。 内部油道也可以用来连通其它一些侧面油孔。 第一控制阀安装区 10包括第一控制阀安装区油口 Pl、 Tl、 Bl、 Al和第一控制阀 安装区安装孔 Fll、 F12、 F13、 F14, 第一控制阀安装区油口 PI、 Tl、 Bl、 Al包括第 一控制阀安装区第一油口 Pl、 第一控制阀安装区第二油口 Tl、 第一控制阀安装区第 三油口 B1和第一控制阀安装区第四油口 A1,第一控制阀安装区安装孔 F11、F12、F13、 F14包括第一控制阀安装区第一安装孔 Fll、第一控制阀安装区第二安装孔 F12、第一 控制阀安装区第三安装孔 F13和第一控制阀安装区第四安装孔 F14。 第一控制阀安装 区第三安装孔 F13和第一控制阀安装区第四安装孔 F14设置在远离第二控制阀安装区 20的一侧,第一控制阀安装区第一安装孔 F11和第一控制阀安装区第二安装孔 F12设 置在靠近第二控制阀安装区 20的一侧。 第二控制阀安装区 20包括第二控制阀安装区油口 P2、 T2、 Β2、 Α2和第二控制阀 安装区安装孔 F21、 F22、 F23、 F24, 第二控制阀安装区油口 P2、 T2、 Β2、 Α2包括第 二控制阀安装区第一油口 Ρ2、 第二控制阀安装区第二油口 Τ2、 第二控制阀安装区第 三油口 Β2和第二控制阀安装区第四油口 Α2,第二控制阀安装区安装孔 F21、F22、F23、 F24包括第二控制阀安装区第一安装孔 F21、第二控制阀安装区第二安装孔 F22、第二 控制阀安装区第三安装孔 F23和第二控制阀安装区第四安装孔 F24。 第二控制阀安装 区第三安装孔 F23和第二控制阀安装区第四安装孔 F24设置在远离第一控制阀安装区 10的一侧,第二控制阀安装区第一安装孔 F21和第二控制阀安装区第二安装孔 F22设 置在靠近第一控制阀安装区 10的一侧。 扩展阀块安装区 30包括扩展阀块安装区油口 P'、 T'、 B'、 A'和扩展阀块安装区安 装孔 Fl '、 F2'、 F3'、 F4', 扩展阀块安装区油口 Ρ'、 Τ'、 Β'、 Α'包括扩展阀块安装区 第一油口 P'、扩展阀块安装区第二油口 T'、扩展阀块安装区第三油口 B'和扩展阀块安 装区第四油口 Α', 扩展阀块安装区安装孔 Fl '、 F2'、 F3'、 F4'包括扩展阀块安装区第 一安装孔 Fl '、 扩展阀块安装区第二安装孔 F2'、 扩展阀块安装区第三安装孔 F3'和扩 展阀块安装区第四安装孔 F4'。 第一控制阀安装区 10和第二控制阀安装区 20具有相同的结构, 可以用于安装相 同规格的控制阀。 第一控制阀安装区安装孔 Fll、 F12、 F13、 F14 中的第一控制阀安 装区第一安装孔 Fll、 第一控制阀安装区第四安装孔 F14和第二控制阀安装区安装孔 F21、 F22、 F23、 F24中的第二控制阀安装区第二安装孔 F22、 第二控制阀安装区第三 安装孔 F23的中心轴线位于第一平面 41上,第一控制阀安装区安装孔 Fll、 F12、 F13、 F14中的第一控制阀安装区第二安装孔 F12、 第一控制阀安装区第三安装孔 F13和第 二控制阀安装区安装孔 F21、 F22、 F23、 F24中的第二控制阀安装区第一安装孔 F21、 第二控制阀安装区第四安装孔 F24的中心轴线位于第二平面 42上,第一平面与第二平 面相互平行, 第一控制阀安装区 10和第二控制阀安装区 20在第一安装侧的位置呈中 心对称布置。 具体而言, 第一控制阀安装区 10和第二控制阀安装区 20是绕第一控制阀安装区 第一安装孔 Fll、 第一控制阀安装区第二安装孔 F12和第二控制阀安装区安装孔 F21、 F22、 F23、 F24 中的第二控制阀安装区第一安装孔 F21、 第二控制阀安装区第二安装 孔 F22的对角连线的交点中心对称, 或者绕第一控制阀安装区第三安装孔 F13、 第一 控制阀安装区第四安装孔 F14和第二控制阀安装区安装孔 F21、 F22、 F23、 F24中的 第二控制阀安装区第三安装孔 F23、 第二控制阀安装区第四安装孔 F24的对角连线的 交点中心对称的。 结合参见图 3所示, 由于本扩展阀块是配合四油口控制阀使用, 因此扩展阀块上 的安装孔位置需要对应于四油口控制阀的规格设置, 而四油口控制阀的四个安装孔并 不是按照矩形排布的, 而是呈梯形排布, 由图 3 中可以看出, 第一控制阀安装区 10 的梯形的上底边的长度为 n, 下底边长度为 m, 假设 n>m, 在设置第二控制阀安装区 20时,为了尽可能地减小扩展阀块的体积和重量,需要将两个四油口控制阀并排设置。 如果第二控制阀安装区 20相对于第一控制阀安装区 10平移设置的话, 在扩展阀块第 一侧的安装孔的总体长度会较长, 而与第一侧相对的扩展阀块第二侧的总体长度会较 短, 而整个扩展阀块需要满足扩展阀块上侧的安装孔的总体长度的要求, 因此, 做出 来的扩展阀块的体积仍然会较大,这种设计没有合理地对第一控制阀安装区 10和第二 控制阀安装区 20进行设置。 而本发明中使第一控制阀安装区 10和第二控制阀安装区 20中心对称, 使得扩展阀块第一侧的安装孔的总体长度和扩展阀块第二侧的安装孔的 总体长度一样, 因此, 使得扩展阀块的结构更加紧凑, 体积进一步减小, 也降低了材 料成本。 结合参见图 4所示,扩展阀块安装区 30需要与工作面上的四油口控制阀安装面相 配合进行安装, 因此,扩展阀块安装区 30包括与其配合的四油口控制阀安装面的镜像 面, 该镜像面不能用于安装任何四油口控制阀, 该镜像面只是用于把该扩展阀块安装 在其他的四油口控制阀安装面上, 安装后, 该镜像面和安装面贴合在一起, 所以称之 为四油口控制阀镜像面。 即扩展阀块安装区 30上的扩展阀块安装区油口 P'、 T'、 Β'、 A'和扩展阀块安装区安装孔 Fl '、 F2'、 F3'、 F4'在第二安装侧上的位置与第一控制阀 安装区 10上的第一控制阀安装区油口 Pl、 Tl、 Bl、 Al和第一控制阀安装区安装孔 Fll、 F12、 F13、 F14在第一安装侧上的位置分布或者第二控制阀安装区 20上的第二 控制阀安装区油口 P2、 T2、 Β2、 Α2和第二控制阀安装区安装孔 F21、 F22、 F23、 F24 在第一安装侧上的位置分布相同。 优选地, 该四油口控制阀安装面与第一控制阀安装 区 10和第二控制阀安装区 20的四油口控制阀安装面具有相同的安装规格, 扩展阀块 安装区 30包括与第一控制阀安装区 10或第二控制阀安装区 20的结构相同的安装区的 镜像结构。 优选地, 扩展阀块安装区 30的扩展阀块安装区第一安装孔 F1 '和扩展阀块安装区 第四安装孔 F4'的中心轴线位于第一平面 41上, 扩展阀块安装区第二安装孔 F2'和扩 展阀块安装区第三安装孔 F3'的中心轴线位于第二平面 42上, 这种结构更加便于对扩 展阀块安装区 30进行设计, 且能够进一步控制扩展阀块的体积。 更优选地, 扩展阀块 安装区 30的扩展阀块安装区第一安装孔 F1 '与第二控制阀安装区 20的第二控制阀安 装区第二安装孔 F22重合, 扩展阀块安装区第二安装孔 F2'与第二控制阀安装区 20的 第二控制阀安装区第一安装孔 F21重合。 在实际的设计过程中, 如果扩展阀块安装区 30 上的安装孔与第一控制阀安装区
10上的部分安装孔重合后, 则扩展阀块安装区 30上的安装孔与第一控制阀安装区 10 上的部分安装孔分别位于第一平面 41和第二平面 42上,而第二控制阀安装区 20上的 安装孔则可以有微小的偏移, 而无需一定位于第一平面 41和第二平面 42上。 同理, 当扩展阀块安装区 30上的安装孔与第二控制阀安装区 20上的部分安装孔重合后, 对 于第一控制阀安装区 10上的安装孔的设置也并非必然有此要求。 在其它的实施例中,扩展阀块也可以设置为扩展阀块安装区 30的扩展阀块安装区 第三安装孔 F3'与第一控制阀安装区 10的第一控制阀安装区第二安装孔 F12重合, 扩 展阀块安装区第二安装孔 F2'与第二控制阀安装区 20的第二控制阀安装区第一安装孔 F21重合,或者是扩展阀块安装区第三安装孔 F3'设置在第一控制阀安装区第二安装孔 F12与第一控制阀安装区第三安装孔 F13之间,扩展阀块安装区第四安装孔 F4'设置在 第一控制阀安装区第一安装孔 F11与第一控制阀安装区第四安装孔 F14之间, 扩展阀 块安装区第二安装孔 F2'设置在第一控制阀安装区第二安装孔 F12与第二控制阀安装 区第一安装孔 F21之间, 扩展阀块安装区第一安装孔 F1 '设置在第一控制阀安装区第 一安装孔 F11与第二控制阀安装区第二安装孔 F22之间。 上述的扩展阀块安装区 30的设置结构,使得扩展阀块的整体体积由第一控制阀安 装区 10和第二控制阀安装区 20来限定,而不会由于受到扩展阀块安装区 30的结构影 响而加大扩展阀块的整体体积,因此可以在合理布置第一控制阀安装区 10和第二控制 阀安装区 20的基础上, 尽可能地减小扩展阀块的体积, 使其结构更加紧凑。 下面结合图 3、 图 8、 图 9和图 10所示, 并以国际标准 ISO 4401-2005中的油口 规格代码为" 03"的四油口控制阀为例对本发明实施例的扩展阀块的结构加以具体说 明。 如图中所示, 第一控制阀安装区 10的四个安装孔均设置为 M5螺纹孔, 第二控制 阀安装区 20的第二控制阀安装区第三安装孔 F23和第四安装孔为 M5螺纹孔,而与扩 展阀块安装区 30的扩展阀块安装区第一安装孔 F1 '重合的第二控制阀安装区第二安装 孔 F22, 以及与扩展阀块安装区 30的扩展阀块安装区第二安装孔 F2'重合的第二控制 阀安装区第一安装孔 F21均设置为直径为 5.5mm的通孔, 扩展阀块安装区 30的其它 两个安装孔也均设置为直径 5.5mm的通孔。 在本实施例中, 扩展阀块安装区第二安装孔 F2'、 第二控制阀安装区第一安装孔
F21、扩展阀块安装区第一安装孔 F1 '和第二控制阀安装区第二安装孔 F22可以同时紧 固扩展阀块上位于第二控制阀安装区 20的四油口控制阀和扩展阀块本身,而扩展阀块 安装区 30的其它两个安装孔仅用于紧固扩展阀块本身。第二控制阀安装区第三安装孔 F23和第二控制阀安装区第四安装孔 F24也仅用于紧固位于位于第二控制阀安装区 20 的四油口控制阀。第一控制阀安装区 10的四个安装孔均设置为螺纹孔,用于紧固位于 第一控制阀安装区 10的四油口控制阀。 在扩展阀块安装区第三安装孔 F3'和扩展阀块安装区第四安装孔 F4'位于第一安装 侧的一端设置有第一沉孔 11和第二沉孔 12。由于扩展阀块安装区第三安装孔 F3'和扩 展阀块安装区第四安装孔 F4'仅用于紧固扩展阀块, 在安装的过程中, 紧固螺钉的头 部会突出扩展阀块的第一安装侧的安装面, 对四油口控制阀的安装造成不便。 第一沉 孔 11和第二沉孔 12的设置使得紧固螺钉不会突出第一安装侧的安装面, 避免了紧固 螺钉与四油口控制阀的干涉。 由于扩展阀块安装区第三安装孔 F3'和扩展阀块安装区 第四安装孔 F4'与第一控制阀安装区第一安装孔 F11和第一控制阀安装区第四安装孔 F14距离较近, 因此, 第一沉孔 11和第二沉孔 12均可以为腰形沉孔, 将位于第一安 装侧的第一控制阀安装区第一安装孔 F11和第一控制阀安装区第四安装孔 F14也分别 包含在相应的腰形沉孔内。 结合图 5至图 7所示, 假设扩展阀块的第一安装侧为上侧, 第二安装侧为下侧, 则内部油道设置在第一安装侧和第二安装侧之间, 且从扩展阀块的侧面向内部延伸, 将第一控制阀安装区 10、 第二控制阀安装区 20和第三控制阀安装区上的相应油口连 通, 从而实现扩展阀块内部的不同预定油路结构, 该内部油道也可以用来实现侧面辅 助油口之间的特定连接关系。 扩展阀块的侧面设置有三个辅助油口: L、 Ml、 M2, 其中 L是回油口, Ml、 M2 是测压油口。 此外, 阀块的侧面还有工艺孔: Gl、 G2、 G3、 G4、 G5等, 通过这些工 艺孔以及阀块的内部油道, 可实现如图 5所示的上、 下面油口连通关系, BP : 第一控 制阀安装区油口 Pl、 Tl、 Bl、 Al中的第一油口 PI与扩展阀块安装区油口 P'、 T'、 Β'、 A'中的第一油口 P'连通、 第一控制阀安装区油口 Pl、 Tl、 Bl、 Al 中的第二油口 Tl 与扩展阀块安装区油口 P'、 T'、 B'、 A'中的第二油口 T'连通、 第二控制阀安装区油口 Ρ2、 Τ2、 Β2、 Α2中的第四油口 Α2与扩展阀块安装区油口 P'、 T'、 B'、 A'中的第三油 口 B'连通、 第二控制阀安装区油口 P2、 T2、 Β2、 Α2中的第三油口 Β2与扩展阀块安 装区油口 P'、 T'、 B'、 A'中的第四油口 A'连通、 第一控制阀安装区油口 Pl、 Tl、 Bl、 Al中的第三油口 B1与第二控制阀安装区油口 P2、 T2、 Β2、 Α2中的第一油口 Ρ2连 通、 第一控制阀安装区油口 Pl、 Tl、 Bl、 Al中的第四油口 Al与第二控制阀安装区 油口 P2、 T2、 Β2、 Α2中的第二油口 Τ2连通。 在本实施例的基础上, 保持扩展阀块的外形尺寸、 第一安装侧和第二安装侧的四 油口控制阀安装面及其镜像面的空间位置关系不变, 仅通过更改扩展阀块内部的油口 通道设计, 可实现如图 6所示的上、 下面油口连通关系, BP : 第一控制阀安装区油口 Pl、 Tl、 Bl、 Al中的第一油口 PI与扩展阀块安装区油口 P'、 T'、 B'、 A'中的第一油 口 P'连通、 第一控制阀安装区油口 Pl、 Tl、 Bl、 Al中的第二油口 Tl与扩展阀块安 装区油口 P'、 T'、 B'、 A'中的第二油口 Τ'连通、 第二控制阀安装区油口 Ρ2、 Τ2、 Β2、 Α2中的第四油口 Α2与扩展阀块安装区油口 P'、 T'、 B'、 A'中的第三油口 B'连通、 第 二控制阀安装区油口 Ρ2、Τ2、Β2、 Α2中的第三油口 Β2与扩展阀块安装区油口 Ρ'、 Τ'、 B'、 A'中的第四油口 A'连通、 第一控制阀安装区油口 Pl、 Tl、 Bl、 Al中的第三油口 B1与第二控制阀安装区油口 P2、 T2、 Β2、 Α2中的第二油口 Τ2连通、 第一控制阀安 装区油口 Pl、 Tl、 Bl、 Α1中的第四油口 Α1与第二控制阀安装区油口 Ρ2、 Τ2、 Β2、 Α2中的第一油口 Ρ2连通, 此时阀块的内部结构如图 6所示。 作为根据图 5所示的实施例的扩展形式, 扩展阀块还可以将第一控制阀安装区油 口 Pl、 Tl、 Bl、 Al中的第一控制阀安装区第一油口 P1与两个测压油口 Ml、 M2连 通, 将第一控制阀安装区油口 Pl、 Tl、 Bl、 Al 中的第一控制阀安装区第二油口 T1 与回油口 L连通,而不使用扩展阀块安装区第一油口 P'和扩展阀块安装区第二油口 T', 此时扩展阀块的油口连通关系如图 7所示。 图 8至图 10为本发明实施例的扩展阀块与四油口控制阀配合时的结构示意图,其 中图 8是扩展阀块与四油口控制阀组合状态时的立体结构示意图, 从图 8中可以看出 四油口控制阀与扩展阀块之间的连接配合关系。 结合图 9的液压原理图可以更加明了 本发明的实施例的扩展阀块的连接和使用方法。 从图 9 中可以看出, 气动换向阀 60 和电磁换向阀 50之间通过扩展阀块上的油口和内部油道实现了连接,使得气动换向阀 60和电磁换向阀 50之间不再需要液压管的连接, 缩短了液压管路的长度, 降低了液 压损失, 减少了液压元件的种类和数量, 提高了液压系统的可靠性, 也使得液压系统 的结构更加紧凑, 能量利用率进一步提高。 当然, 在其它的实施例中, 通过改变内部 油道的结构, 也可以使气动换向阀 60和电磁换向阀 50与扩展阀块之间实现不同结构 的其它连通形式。 从图 10中的分解图可以看出, 本实施例中, 电磁换向阀 50安装在扩展阀块的第 二控制阀安装区 20, 气动换向阀 60安装在扩展阀块的第一控制阀安装区 10。 电磁换 向阀 50通过两个较短的螺钉紧固在第二控制阀安装区 20上, 通过两个较长的螺钉穿 过扩展阀块之后紧固在与扩展阀块安装区 30配合的四油口控制阀安装面上,从而将电 磁换向阀 50和扩展阀块最终固定在所需要的位置。 气动换向阀 60通过螺钉与第一控 制阀安装区 10上的四个螺纹安装孔配合, 并紧固在第一控制阀安装区 10上。 扩展阀 块通过设置在扩展阀块上的四个通孔内的螺钉, 固定设置在工作面上。 电磁换向阀 50 与气动换向阀 60的安装方向相反。 在扩展阀块的侧面设计有多个工艺孔 Gl、 G2、 G3、 G4、 G5 等, 这些工艺孔是 为了实现相应油口之间的不同连接而设置, 在设计完成后, 在工艺孔的入口设置有多 个丝堵, 对工艺孔进行封堵。 相应地, 在辅助油口 Ml、 M2和 L的入口处也设置有对 辅助油口进行封堵的螺塞, 在使用扩展阀块的过程中, 可以根据所需要连接的管路和 所需要实现的液压系统来对辅助油口进行控制, 例如打开辅助油口中的一个或多个, 使辅助油口与其它液压管路进行连接, 或者始终封堵所有的辅助油口。 在扩展阀块安装区 30的油口周围设置有密封沟槽 31, 用于在扩展阀块安装区 30 的油口与四油口控制阀安装面 70配合时,对它们的连接位置进行密封, 以防止液压油 流出。 密封沟槽 31 内可以设置多种形式的密封结构, 例如填充密封材料或者设置 0 型圈等。 从以上的描述中, 可以看出, 本发明上述的实施例实现了如下技术效果: 扩展阀 块包括第一安装侧和第二安装侧, 第一安装侧设置有第一控制阀安装区和第二控制阀 安装区, 第二安装侧设置有扩展阀块安装区, 扩展阀块还包括内部油道, 内部油道设 置在第一安装侧和第二安装侧之间, 按预定油路结构连通第一控制阀安装区、 第二控 制阀安装区和扩展阀块安装区上的相应油口, 第一控制阀安装区与第二控制阀安装区 中心对称。 将扩展阀块的第一控制阀安装区与第二控制阀安装区中心对称, 使得两个 控制阀安装区的安装孔所占用的空间实现互补, 使得阀块的结构紧凑, 重量较轻, 体 积较小, 进一步地减轻了阀块的重量, 降低了成本。 以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本领域的技 术人员来说, 本发明可以有各种更改和变化。 凡在本发明的精神和原则之内, 所作的 任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之内。

Claims

权 利 要 求 书
1. 一种扩展阀块, 其特征在于, 包括:
相对设置的第一安装侧和第二安装侧;
第一控制阀安装区(10), 设置在所述第一安装侧, 所述第一控制阀安装区 ( 10) 包括第一控制阀安装区油口 (Pl、 Tl、 Bl、 AO 和第一控制阀安装区 安装孔 (Fll、 F12、 F13、 F14);
第二控制阀安装区(20), 设置在所述第一安装侧, 所述第二控制阀安装区 (20) 包括第二控制阀安装区油口 (P2、 T2、 Β2、 Α2) 和第二控制阀安装区 安装孔 (F21、 F22、 F23、 F24);
扩展阀块安装区(30),设置在所述第二安装侧,所述扩展阀块安装区(30) 包括扩展阀块安装区油口 (Ρ'、 Τ'、 Β'、 Α' ) 和扩展阀块安装区安装孔 (Fl '、 F2'、 F3'、 F4' );
内部油道, 所述内部油道设置在所述第一安装侧和所述第二安装侧之间, 按预定油路结构连通所述第一控制阀安装区(10)、第二控制阀安装区(20)和 所述扩展阀块安装区 (30) 上的相应油口;
所述第一控制阀安装区安装孔 (Fl l、 F12、 F13、 F14)包括远离所述第二 控制阀安装区(20) 的安装孔(F13、 F14)和靠近所述第二控制阀安装区(20) 的安装孔 (Fll、 F12), 所述第二控制阀安装区安装孔 (F21、 F22、 F23、 F24) 包括远离所述第一控制阀安装区 (10) 的安装孔 (F23、 F24) 和靠近所述第一 控制阀安装区 ( 10) 的安装孔 (F2K F22),
所述第一控制阀安装区 (10) 上的第一控制阀安装区油口 (Pl、 Tl、 Bl、 AO和第一控制阀安装区安装孔(Fll、 F12、 F13、 F14)与所述第二控制阀安 装区 (20) 上的第二控制阀安装区油口 (P2、 T2、 Β2、 Α2) 和第二控制阀安 装区安装孔(F21、 F22、 F23、 F24)在所述第一安装侧的位置呈中心对称布置。
2. 根据权利要求 1所述的扩展阀块, 其特征在于, 所述第一控制阀安装区安装孔
(Fll、 F12、 F13、 F14) 的一部分安装孔 (Fll、 F14) 与所述第二控制阀安装 区安装孔 (F21、 F22、 F23、 F24) 的一部分安装孔 (F22、 F23 ) 的中心轴线位 于第一平面 (41 ) 上, 所述第一控制阀安装区安装孔 (Fll、 F12、 F13、 F14) 的另一部分安装孔 (F12、 F13 ) 与所述第二控制阀安装区安装孔 (F21、 F22、 F23、 F24) 的另一部分安装孔 (F21、 F24) 的中心轴线位于与所述第一平面平 行的第二平面 (42) 上。
3. 根据权利要求 1或 2所述的扩展阀块, 其特征在于, 所述扩展阀块安装区(30) 上的扩展阀块安装区油口 (Ρ'、 Τ'、 Β'、 Α' ) 和扩展阀块安装区安装孔 (Fl '、 F2'、 F3'、 F4' ) 在所述第二安装侧上的位置与所述第一控制阀安装区 (10) 上 的第一控制阀安装区油口(Pl、 Tl、 Bl、 Al )和第一控制阀安装区安装孔(Fll、 F12、 F13、 F14) 在所述第一安装侧上的位置分布或者所述第二控制阀安装区
(20) 上的第二控制阀安装区油口 (P2、 T2、 Β2、 Α2) 和第二控制阀安装区 安装孔 (F21、 F22、 F23、 F24) 在所述第一安装侧上的位置分布相同。
4. 根据权利要求 3所述的扩展阀块, 其特征在于, 所述扩展阀块安装区 (30) 的 靠近所述第二控制阀安装区 (20) 的安装孔 (Fl '、 F2,) 与所述第二控制阀安 装区 (20) 的靠近所述第一控制阀安装区 (10) 的安装孔 (F21、 F22) 重合。
5. 根据权利要求 4所述的扩展阀块, 其特征在于, 所述第一控制阀安装区 (10) 的安装孔为螺纹孔, 所述第二控制阀安装区 (20) 的靠近所述第一控制阀安装 区 (10) 的安装孔 (F21、 F22) 为通孔, 所述第二控制阀安装区 (20) 的另一 部分安装孔 (F23、 F24) 为螺纹孔, 所述扩展阀块安装区 (30) 的安装孔为通 孔, 所述扩展阀块安装区 (30) 的一部分安装孔 (F3'、 F4' ) 位于所述第一安 装侧的一端设置有第一沉孔 (11 ) 和第二沉孔 (12)。
6. 根据权利要求 3所述的扩展阀块, 其特征在于, 所述扩展阀块安装区 (30) 的 靠近所述第一控制阀安装区 (10) 的安装孔 (F3'、 F4' ) 与所述第一控制阀安 装区 (10) 的靠近所述第二控制阀安装区 (20) 的安装孔 (Fll、 F12) 重合。
7. 根据权利要求 3所述的扩展阀块, 其特征在于, 所述扩展阀块安装区 (30) 的 靠近所述第一控制阀安装区 (10) 的安装孔 (F3'、 F4' ) 设置在所述第一控制 阀安装区 (10) 的靠近所述第二控制阀安装区 (20) 的安装孔 (Fll、 F12) 和 另一部分安装孔 (F13、 F14) 之间, 所述扩展阀块安装区 (30) 的另一部分安 装孔 (Fl '、 F2,) 设置在所述第二控制阀安装区 (20) 的靠近所述第一控制阀 安装区 (10) 的安装孔 (F21、 F22) 和所述第一控制阀安装区 (10) 的靠近所 述第二控制阀安装区 (20) 的安装孔 (Fll、 F12) 之间。
8. 根据权利要求 7所述的扩展阀块, 其特征在于, 所述内部油道包括回油口和测 压油口。 根据权利要求 1或 2所述的扩展阀块, 其特征在于:
所述第一控制阀安装区油口 (Pl、 Tl、 Bl、 Al) 中的第一油口 (PI) 与 所述扩展阀块安装区油口中的第一油口 (Ρ') 连通、 所述第一控制阀安装区油 口 (Pl、 Tl、 Bl、 Al) 中的第二油口 (T1) 与所述扩展阀块安装区油口中的 第二油口 (Τ')连通、 第二控制阀安装区油口 (Ρ2、 Τ2、 Β2、 Α2) 中的第四油 口 (Α2) 与扩展阀块安装区油口中的第三油口 (Β')连通、 所述第二控制阀安 装区油口 (Ρ2、 Τ2、 Β2、 Α2) 中的第三油口 (Β2) 与扩展阀块安装区油口中 的第四油口 (Α')连通、 所述第一控制阀安装区油口 (Pl、 Tl、 Bl、 Al) 中的 第三油口 (B1) 与所述第二控制阀安装区油口 (P2、 T2、 Β2、 Α2) 中的第一 油口 (Ρ2) 连通、 所述第一控制阀安装区油口 (Pl、 Tl、 Bl、 Al) 第一控制 阀安装区中的第四油口 (A1) 与所述第二控制阀安装区油口 (P2、 T2、 Β2、 Α2) 第二控制阀安装区中的第二油口 (Τ2) 连通;
第一控制阀安装区油口 (Pl、 Tl、 Bl、 Al) 中的第一油口 (PI) 与扩展 阀块安装区油口中的第一油口 (Ρ') 连通、 所述第一控制阀安装区油口 (Pl、 Tl、 Bl、 Al) 中的第二油口 (T1) 与扩展阀块安装区油口中的第二油口 ( ) 连通、 第二控制阀安装区油口 (P2、 T2、 Β2、 Α2) 中的第四油口 (Α2) 与扩 展阀块安装区油口中的第三油口 (Β')连通、所述第二控制阀安装区油口 (Ρ2、 Τ2、 Β2、 Α2) 中的第三油口 (Β2) 与扩展阀块安装区油口中的第四油口 (Α') 连通、 所述第一控制阀安装区油口 (Pl、 Tl、 Bl、 Al) 的第三油口 (B1) 与 所述第二控制阀安装区油口 (P2、 T2、 Β2、 Α2) 中的第二油口 (Τ2) 连通、 所述第一控制阀安装区油口 (Pl、 Tl、 Bl、 Al) 中的第四油口 (Al) 与所述 第二控制阀安装区油口 (P2、 T2、 Β2、 Α2) 中的第一油口 (Ρ2) 连通。 根据权利要求 1或 2中任一项所述的扩展阀块, 其特征在于, 所述扩展阀块安 装区 (30) 的扩展阀块安装区油口 (Ρ'、 Τ'、 Β'、 Α') 的油口处分别设置有密 封沟槽 (31)。
PCT/CN2012/085819 2012-10-30 2012-12-04 扩展阀块 Ceased WO2014067204A1 (zh)

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