CN202833390U - Integrated type multiple directional control valve - Google Patents
Integrated type multiple directional control valve Download PDFInfo
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- CN202833390U CN202833390U CN 201220544534 CN201220544534U CN202833390U CN 202833390 U CN202833390 U CN 202833390U CN 201220544534 CN201220544534 CN 201220544534 CN 201220544534 U CN201220544534 U CN 201220544534U CN 202833390 U CN202833390 U CN 202833390U
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Abstract
Provided is an integrated type multiple directional control valve. Pilot control valves are respectively and vertically installed on each directional control valve along each left side and /or each right side of the axial direction of each valve rod of each directional control valve, and secondary overflow valves (2) are respectively and horizontally installed on each left side and each right side, wherein the pilot control valves are located above each corresponding valve rod of each directional control valve, the secondary overflow valves (2) are located below each of the corresponding valve rods, and the upper ends of the pilot control valves are lower than the upper surfaces of valve bodies of the corresponding directional control valves, or the pilot control valves are located below each corresponding valve rod of each directional control valve, the secondary overflow valves (2) are located above each of the corresponding valve rods, and the lower ends of the pilot control valves are higher than the lower surfaces of the valve bodies of the corresponding directional control valves. The integrated type multiple directional control valve is compact in structure, and good in convenience for installation, convenience and protective properties for wiring operation of the pilot control valves. In addition, the integrated type multiple directional control valve has functions of remarkably improved oil compensation and variety of arrangement structure.
Description
Technical field
The utility model relates to a kind of multiple directional control valve, particularly, relates to a kind of integrated form multiple directional control valve.
Background technique
Multiple directional control valve is widely used in engineering machinery (such as hydraulic hoist etc.), because the hydraulic actuator (for example oil hydraulic cylinder, oil hydraulic motor) on the engineering machinery is numerous, therefore utilize the selector valve that respectively joins in the multiple directional control valve that corresponding hydraulic actuator is carried out switch operation, to realize the change of hydraulic actuator working state, such as the extension and contraction control of oil hydraulic cylinder, the clockwise and anticlockwise control of oil hydraulic motor etc.Extensive use pilot control formula multiple directional control valve on the engineering machinery (typically being " electric liquid multiple directional control valve "), it adopts the pilot control form, namely utilizes pilot-actuated valve (such as solenoid valve or electromagnetic proportional valve etc.) to respectively joining the selector valve control that commutates in the multiple directional control valve.
Along with the progress of hydraulics, the multiple directional control valve valve needs integrated function more and more.According to real operating mode and client's needs, the miniaturization of electric liquid multiple directional control valve also becomes developing direction.Yet if will increase to a certain extent simply the overall dimensions of multiple directional control valve to the new function of multiple directional control valve stack, this has just caused the contradiction between the multifunctional integrated and miniaturization of multiple directional control valve.
Particularly, along with the multifunction of engineering machinery to its multiple directional control valve requires to get more and more, integrated one or more of the duty valves such as relief valve, secondary relief valve, Fill valve, solenoid valve, electromagnetic proportional valve, reduction valve, constant difference overflow valve, load compensation valve, flow stabilizer on take position control valve as the multiple directional control valve on basis for this reason, generally be on the basis that forms pilot control formula multiple directional control valve, further to increase corresponding function, such as primary overflow function, secondary relief function, repairing function etc.Simultaneously, kept within bounds by cost, pipe-line layout, installing space, the factor such as convenient for assembly, the manufacturer of engineering machinery wishes that the volume of multiple directional control valve is more little more compact better, and will satisfy its high pressure, large flow, the requirement such as easy to use.
Generally, in order to satisfy the multifunction requirement of multiple directional control valve, can realize by the method that increases duty valve plug-in unit (take screw-in cartridge valve as main) at its valve body.But, the duty valve plug-in unit is more, the volume of multi-way valve can be larger, and because the mounting point restriction, each duty valve plug-in unit is interfered mutually, navigability energy variation, this is wherein with the valve block (such as solenoid valve, electromagnetic proportional valve etc.) of the pilot-actuated valve of multiple directional control valve typical case the most, so in order to improve the multifunctionality of multiple directional control valve, the mode that simply increases simply the duty valve plug-in unit is irrational.
Fig. 1 to Fig. 9 shows the various layout forms of pilot control formula multiple directional control valve in the prior art.
Fig. 1 shows that the first solenoid valve 1a and the second solenoid valve 1b(as pilot-actuated valve is solenoid directional control valve) upwards vertically be installed on the both sides of multiple directional control valve respectively, while two secondary relief valves 2 respectively transverse horizontal are installed in the multiple directional control valve both sides, wherein the L0 representative has increased solenoid valve 1a, the entire length size of the multiple directional control valve behind 1b and the secondary relief valve 2 size of the axial direction of the spool that respectively joins selector valve in the multiple directional control valve (namely along), L1 represents the length dimension of solenoid valve 1a or 1b increase, and L2 represents the length dimension that each secondary relief valve 2 increases.In addition, A among the figure, B represent the first actuator port and second actuator port of a selector valve in the multiple directional control valve, the first working oil chamber and the second working oil chamber that a, b representative is communicated with the first actuator port and the second actuator port respectively, t represents oil back chamber (schematically having adopted the display format of cutting open among the figure), also adopt simultaneously and analyse and observe the spool 2.1 that form has shown secondary relief valve 2, regulate core bar 2.2 and pressure regulation nut 2.3 etc., the known configurations that these all belong on the multiple directional control valve below repeats no more.
Fig. 2 shows that the first solenoid valve 1a and the second solenoid valve 1b upwards vertically are installed on the same side of multiple directional control valve, while secondary relief valve 2 respectively transverse horizontal is installed in the multiple directional control valve both sides, wherein the L4 representative has increased solenoid valve 1a, the entire length size of the multiple directional control valve behind 1b and the secondary relief valve 2, L3 represents the length dimension of solenoid valve 1a and 1b increase, and L2 represents the length dimension that each secondary relief valve 2 increases.
Fig. 3 shows that the first solenoid valve 1a and the second solenoid valve 1b horizontal cross are installed on the both sides of multiple directional control valve, simultaneously secondary relief valve 2 also respectively transverse horizontal be installed in the multiple directional control valve both sides, wherein the L6 representative has increased solenoid valve 1a, the entire length size of the multiple directional control valve behind 1b and the secondary relief valve 2, L5 represents the length dimension of solenoid valve 1a or 1b increase, and L2 represents the length dimension that secondary relief valve 2 increases.
Fig. 4 shows that the first solenoid valve 1a and the second solenoid valve 1b horizontal cross are installed on the same side of multiple directional control valve, while secondary relief valve 2 respectively transverse horizontal is installed in the multiple directional control valve both sides, wherein the L7 representative has increased solenoid valve 1a, the entire length size of the multiple directional control valve behind 1b and the secondary relief valve 2, L5 represents the length dimension of solenoid valve 1a and 1b increase, and L2 represents the length dimension that each secondary relief valve 2 increases.
Fig. 5 shows that the first solenoid valve 1a and the second solenoid valve 1b as pilot-actuated valve vertically is installed on the both sides of multiple directional control valve respectively downwards, while secondary relief valve 2 respectively transverse horizontal is installed in the multiple directional control valve both sides, wherein the L9 representative has increased solenoid valve 1a, the entire length size of the multiple directional control valve behind 1b and the secondary relief valve 2, L8 represents the length dimension of solenoid valve 1a or 1b increase, and L2 represents the length dimension that each secondary relief valve 2 increases.
Fig. 6 shows that the first solenoid valve 1a and the second solenoid valve 1b vertically are installed on the same side of multiple directional control valve downwards, while secondary relief valve 2 respectively transverse horizontal is installed in the multiple directional control valve both sides, wherein the L11 representative has increased solenoid valve 1a, the entire length size of the multiple directional control valve behind 1b and the secondary relief valve 2, L10 represents the length dimension of solenoid valve 1a and 1b increase, and L2 represents the length dimension that each secondary relief valve 2 increases.
Fig. 7 and Fig. 8 show a side that vertically is installed in multiple directional control valve as the electro-hydraulic proportional valve 4 of pilot-actuated valve, secondary relief valve 3 vertically is installed on the multiple directional control valve simultaneously, wherein L13 representative has increased the entire length size of the multiple directional control valve behind electro-hydraulic proportional valve 4 and the secondary relief valve 3, L12 represents the length dimension that electro-hydraulic proportional valve increases, the L14 representative has increased the thickness size of the selector valve of secondary relief valve 3, wherein adopt and analyse and observe the spool 3.1 that form has shown secondary relief valve 3, regulate core bar 3.2 and pressure regulation nut 3.3 etc.
Fig. 9 shows that the first solenoid valve 1a and the second solenoid valve 1b transverse horizontal are installed on the both sides of multiple directional control valve, while secondary relief valve 2 respectively transverse horizontal is installed in the multiple directional control valve both sides, wherein the L16 representative has increased solenoid valve 1a, the entire length size of the multiple directional control valve behind 1b and the secondary relief valve 2, L15 represents the length dimension of solenoid valve 1a or 1b increase, and L2 represents the length dimension that each secondary relief valve 2 increases.
Table 1:
In conjunction with upper table content as can be known, the layout type underaction of relevant function valve block on the existing multiple directional control valve, can not take into account preferably the compactedness of valve body structure, the convenience that the secondary relief valve is installed, the reliability of repairing performance, the convenience of pilot-actuated valve wiring, the requirements such as protective of pilot-actuated valve, especially layout remodeling property of these existing multiple directional control valves is poor, be unfavorable for that Installation Flexibility is relatively poor according to arranging that needs carry out the variation of the position of corresponding function valve.
Because the defects of prior art needs a kind of novel multiple directional control valve of design.
The model utility content
Technical problem to be solved in the utility model provides a kind of integrated form multiple directional control valve, this integrated form multiple directional control valve not only can satisfy the requirement of multifunction, and can take into account the compactedness of structure, the convenience of installation and protective and the easy-to-connect requirement of pilot-actuated valve relative efficiency.
Further, technical problem to be solved in the utility model provides a kind of integrated form multiple directional control valve, and this integrated form multiple directional control valve not only has above-mentioned performance, and has good repairing performance and remodeling property of layout.
In order to solve the problems of the technologies described above, the utility model provides a kind of integrated form multiple directional control valve, wherein, left side and/or the right side of valve rod axial direction vertically are equipped with pilot-actuated valve separately on the selector valve edge that respectively joins of this multiple directional control valve, and respectively join selector valve and be horizontally installed with respectively the secondary relief valve along left side and the right side of its valve rod axial direction, described pilot-actuated valve is in the top of the valve rod of corresponding described selector valve, described secondary relief valve is in the below of described valve rod, and the upper end of described pilot-actuated valve is lower than the upper surface of the valve body of this corresponding described selector valve; Perhaps described pilot-actuated valve is in the below of the valve rod of corresponding described selector valve, and described secondary relief valve is in the top of described valve rod, and the lower end of described pilot-actuated valve is higher than the lower surface of the valve body of this corresponding selector valve.
Preferably, each described pilot-actuated valve is installed in respectively on the left side Returnning spring cover or right side Returnning spring cover at valve rod two ends of corresponding described selector valve.
Typically, described pilot-actuated valve is solenoid valve, electromagnetic proportional valve or the electro-hydraulic proportional valve of selector valve form.
Preferably, each valve body that joins described selector valve is formed with the first mounting hole and the second mounting hole that lays respectively at this valve rod above and below along the left side of its valve rod axial direction, the right side is formed with the 3rd mounting hole and the 4th mounting hole that lays respectively at described valve rod above and below, wherein said the first mounting hole and the second mounting hole separately with described valve body in the first working oil chamber and oil back chamber intersect, described the 3rd mounting hole and the 4th mounting hole separately with described valve body in the second working oil chamber and described oil back chamber intersect, wherein, be horizontally installed with respectively described secondary relief valve in described the first mounting hole and the 3rd mounting hole, so that described secondary relief valve is in the top of described valve rod, be horizontally installed with respectively Fill valve in described the second mounting hole and the 4th mounting hole; Perhaps be horizontally installed with respectively Fill valve in described the first mounting hole and the 3rd mounting hole, be horizontally installed with respectively described secondary relief valve in described the second mounting hole and the 4th mounting hole, so that described secondary relief valve is in the below of described valve rod.
More preferably, described the first mounting hole, the second mounting hole, the 3rd mounting hole and the 4th mounting hole are measure-alike mounting hole.
Typically, described the first mounting hole, the second mounting hole, the 3rd mounting hole and the 4th mounting hole are threaded mounting hole.
As the first specific constructive form, described pilot-actuated valve comprises the first pilot-actuated valve and the second pilot-actuated valve, described the first pilot-actuated valve and the second pilot-actuated valve are installed on the left side Returnning spring cover of corresponding described selector valve valve rod left end, be horizontally installed with respectively described Fill valve in described the first mounting hole and the 3rd mounting hole, be horizontally installed with respectively described secondary relief valve in described the second mounting hole and the 4th mounting hole.
As the second specific constructive form, described pilot-actuated valve comprises the first pilot-actuated valve and the second pilot-actuated valve, described the first pilot-actuated valve and the second pilot-actuated valve are installed in respectively on the left side Returnning spring cover and right side Returnning spring cover at corresponding described selector valve valve rod two ends, be horizontally installed with respectively described Fill valve in described the first mounting hole and the 3rd mounting hole, be horizontally installed with respectively described secondary relief valve in described the second mounting hole and the 4th mounting hole.
As the third specific constructive form, described pilot-actuated valve comprises the first pilot-actuated valve and the second pilot-actuated valve, described the first pilot-actuated valve and the second pilot-actuated valve are installed on the left side Returnning spring cover of corresponding described selector valve valve rod left end, be horizontally installed with respectively described secondary relief valve in described the first mounting hole and the 3rd mounting hole, be horizontally installed with respectively described Fill valve in described the second mounting hole and the 4th mounting hole.
As the 4th kind of specific constructive form, described pilot-actuated valve comprises the first pilot-actuated valve and the second pilot-actuated valve, described the first pilot-actuated valve and the second pilot-actuated valve are installed in respectively on the left side Returnning spring cover and right side Returnning spring cover at corresponding described selector valve valve rod two ends, be horizontally installed with respectively described secondary relief valve in described the first mounting hole and the 3rd mounting hole, described the second mounting hole and the 4th mounting hole are horizontally installed with respectively described Fill valve.
In addition, the utility model also provides a kind of integrated form multiple directional control valve, wherein, the selector valve that respectively joins of this integrated form multiple directional control valve is horizontally installed with respectively the secondary relief valve along left side and the right side of its valve rod axial direction, and each described secondary relief valve all is in below or the top of the valve rod of corresponding described selector valve; The valve body edge that respectively joins selector valve of described integrated form multiple directional control valve is formed with the first mounting hole and the second mounting hole that lays respectively at this valve rod above and below in the left side of valve rod axial direction separately, the right side is formed with the 3rd mounting hole and the 4th mounting hole that lays respectively at described valve rod above and below, wherein said the first mounting hole and the second mounting hole separately with described valve body in the first working oil chamber and oil back chamber intersect, described the 3rd mounting hole and the 4th mounting hole separately with described valve body in the second working oil chamber and described oil back chamber intersect, wherein, be horizontally installed with respectively described secondary relief valve in described the second mounting hole and the 4th mounting hole, so that described secondary relief valve is in the below of described valve rod, be horizontally installed with respectively Fill valve in described the first mounting hole and the 3rd mounting hole, so that described Fill valve is in the top of described valve rod; Perhaps be horizontally installed with respectively described secondary relief valve in described the first mounting hole and the 3rd mounting hole, so that described secondary relief valve is in the top of described valve rod, be separately installed with Fill valve in described the second mounting hole and the 4th mounting hole, so that described Fill valve is in the below of described valve rod.
Preferably, described the first mounting hole, the second mounting hole, the 3rd mounting hole and the 4th mounting hole are measure-alike mounting hole.
Pass through technique scheme, at first because each pilot-actuated valve of the present utility model is arranged in a corresponding selector valve along the one or both sides (typically being arranged on the Returnning spring cover) of valve rod axial direction, and the same both sides of arranging along the valve rod axial direction of secondary relief valve, and pilot-actuated valve is vertically to install, the size that pilot-actuated valve and secondary relief valve are installed to be increased at the valve rod axial direction is overlapping, and with the axial dimension of the Returnning spring cover of corresponding selector valve be overlapping, even be at the valve rod axial direction within the axial dimension of Returnning spring cover, so layout is comparatively compact; Secondly, pilot-actuated valve of the present utility model and secondary relief valve are in respectively the above and below of valve rod, and be very convenient so when mounted, avoided secondary relief valve and pilot-actuated valve to install, dismantle contingent interference, and therefore property easy for installation is good; Again, the pilot-actuated valve of integrated form multiple directional control valve of the present utility model all is vertical installation (extend upward or to downward-extension), and therefore pilot-actuated valve to be carried out circuit comparatively convenient when connecting, the convenience of pilot-actuated valve wiring operation is better; The 4th, the pilot-actuated valve of integrated form multiple directional control valve of the present utility model extends upward or all is no more than to downward-extension upper surface or the lower surface of the valve body of corresponding selector valve, so the protective of pilot-actuated valve is better.In addition, in a preferred embodiment, because integrated form multiple directional control valve of the present utility model has installed Fill valve additional, thereby can improve significantly the repairing function of multiple directional control valve.In addition, because having formed the first measure-alike mounting hole, the second mounting hole, the 3rd mounting hole and the 4th mounting hole at valve body is measure-alike mounting hole, be more convenient for like this adjustment of the mounting point of secondary relief valve, so that the same valve body has the mode of assembling flexibly, improved the various type of layout.
Other feature and advantage of the present utility model will partly be described in detail in embodiment subsequently.
Description of drawings
Following accompanying drawing is used to provide further understanding of the present utility model; and consist of the part of specification; itself and following embodiment one are used from explanation the utility model, but protection domain of the present utility model is not limited to following the drawings and the specific embodiments.In the accompanying drawings:
Fig. 1 to Fig. 9 is the structural representation of various layout forms of the multiple directional control valve of prior art.
Figure 10 is the sectional structure schematic diagram of valve body of the integrated form multiple directional control valve of the utility model preferred implementation.
Figure 11 is the layout schematic diagram of the integrated form multiple directional control valve of the utility model the first embodiment.
Figure 12 is the layout schematic diagram of the integrated form multiple directional control valve of the utility model the second embodiment.
Figure 13 is the layout schematic diagram of the integrated form multiple directional control valve of the third embodiment of the utility model.
Figure 14 is the layout schematic diagram of the integrated form multiple directional control valve of the 4th kind of embodiment of the utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated; should be understood that; embodiment described herein only is used for description and interpretation the utility model, and protection domain of the present utility model is not limited to following embodiment.
At first need to prove, integrated form multiple directional control valve of the present utility model is mainly concerned with the improvement of the layout of correlation function valve integrated on the multiple directional control valve, about the hydraulic principle structure of multiple directional control valve inside and the hydraulic connecting structure of multiple directional control valve and correlation function valve are known for those skilled in the art, therefore will not relate in the following description unless necessary.The layout of integrated form multiple directional control valve of the present utility model in the following description, emphasis is described.In addition; in the description of technical solutions of the utility model; some nouns of locality that adopt in order clearly to limit the technical solution of the utility model; for example " on "; D scores etc. all are that the valve rod that respectively joins selector valve according to multiple directional control valve is under the level and with respect to the orientation of described valve rod; for example Figure 10 is to orientation shown in Figure 14; correspondingly; the vertical mounting type of pilot-actuated valve namely is installed as with respect to valve rod vertically or substantially vertical; even the as installed orientation of multiple directional control valve changes in the actual using process of multiple directional control valve; but as long as the essential implication of technical characteristics is identical, it belongs to protection domain of the present utility model equally.
As mentioned above, progress along with hydraulics, multiple directional control valve need to be integrated with relevant duty valve, how on the basis of the requirement of satisfying multifunction, take into account the compactedness of structure, the convenience of installation and protective and the easy-to-connect requirement of pilot-actuated valve, this is relatively to be difficult to the technical barrier that solves for those skilled in the art relative efficiency.
The technological scheme that can relatively satisfy the integrated form multiple directional control valve of above-mentioned performance requirement of the present utility model is below at first described, on this basis, the technological scheme of the repairing function with improvement of the present utility model and good layout various type will be further described.
Extremely shown in Figure 14 referring to Figure 11, integrated form multiple directional control valve of the present utility model, it respectively joins selector valve and along left side and/or the right side of its valve rod axial direction pilot-actuated valve is installed vertically, and respectively join selector valve and be horizontally installed with respectively secondary relief valve 2 along left side and the right side of its valve rod axial direction, wherein, described pilot-actuated valve is in the top of the valve rod of corresponding described selector valve, described secondary relief valve 2 is in the below of described valve rod, and the upper end of described pilot-actuated valve is lower than the upper surface of the valve body of this corresponding described selector valve; Perhaps described pilot-actuated valve is in the below of the valve rod of corresponding described selector valve, and described secondary relief valve 2 is in the top of described valve rod, and the lower end of described pilot-actuated valve is higher than the lower surface of the valve body of this corresponding selector valve.
Typically, each described pilot-actuated valve can be installed in respectively on the left side Returnning spring cover or right side Returnning spring cover at valve rod two ends of corresponding described selector valve.Know for those skilled in the art ground, described pilot-actuated valve can be the solenoid valve 1a of selector valve form, 1b, electromagnetic proportional valve or electro-hydraulic proportional valve, and it is mainly used in the control of guide's hydraulic control oil.
By technique scheme of the present utility model, at first, because each pilot-actuated valve of the present utility model is arranged in a corresponding selector valve along the one or both sides (typically being arranged on the Returnning spring cover) of valve rod axial direction, and the secondary relief valve 2 same both sides of arranging along the valve rod axial direction, and pilot-actuated valve is vertically to install, that is to say, the size that pilot-actuated valve and secondary relief valve are installed to be increased at the valve rod axial direction is overlapping, and with the axial dimension of the Returnning spring cover of corresponding selector valve be overlapping, even be at the valve rod axial direction within the axial dimension of Returnning spring cover, therefore under the prerequisite of the requirement of having satisfied functionalization, size to multiple directional control valve increases limited, substantially do not increase the size on the square valve rod axial direction of multiple directional control valve, so layout is comparatively compact; The second, pilot-actuated valve of the present utility model and secondary relief valve 2 are in respectively the above and below of valve rod, and be very convenient so when mounted, avoided secondary relief valve and pilot-actuated valve to install, dismantle contingent interference, and therefore property easy for installation is good; The 3rd, the pilot-actuated valve of integrated form multiple directional control valve of the present utility model all is vertical installation (extend upward or to downward-extension), and therefore pilot-actuated valve to be carried out circuit comparatively convenient when connecting, the convenience of pilot-actuated valve wiring operation is better; The 4th, the pilot-actuated valve of integrated form multiple directional control valve of the present utility model extends upward or all is no more than to downward-extension upper surface or the lower surface of the valve body of corresponding selector valve, this has been avoided suffering that owing to upper surface and the lower surface of pilot-actuated valve protrusion and described valve body accident collision damages in installing and using process, so the protective of pilot-actuated valve is better.In addition, in this basic technical scheme, the secondary relief valve can adopt the relief valve that has the repairing function in the prior art, so the repairing function also can be guaranteed substantially.
On the basis of technique scheme, integrated form multiple directional control valve of the present utility model has the mode of execution that is more preferably, this more preferably the integrated form multiple directional control valve of form can have more perfect repairing function and remodeling property of layout.
Referring to shown in Figure 10, the valve body that respectively joins selector valve of integrated form multiple directional control valve of the present utility model is formed with the first mounting hole 9.1 and the second mounting hole 9.2 that lays respectively at this valve rod above and below along the left side of described valve rod axial direction, the right side is formed with the 3rd mounting hole 9.3 and the 4th mounting hole 9.4 that lays respectively at described valve rod above and below, wherein said the first mounting hole 9.1 and the second mounting hole 9.2 separately with described valve body in the first working oil chamber a and oil back chamber t intersect, described the 3rd mounting hole 9.3 and the 4th mounting hole 9.4 separately with described valve body in the second working oil chamber b and described oil back chamber t intersect, wherein, be separately installed with described secondary relief valve 2 in described the first mounting hole 9.1 and the 3rd mounting hole 9.3, be separately installed with Fill valve 5 in described the second mounting hole 9.2 and the 4th mounting hole 9.4; Perhaps be separately installed with Fill valve 5 in described the first mounting hole 9.1 and the 3rd mounting hole 9.3, be separately installed with described secondary relief valve 2 in described the second mounting hole 9.2 and the 4th mounting hole 9.4.As shown in figure 10, the axis of the equal valve-rod cavity of central axis of the first mounting hole 9.1 and the second mounting hole 9.2 (being the axis of valve rod) distance is respectively La and Lb, and the 3rd mounting hole 9.3 and the 4th mounting hole 9.4 also are like this.In actual applications, those skilled in the art can change above-mentioned distance L a and Lb according to actual conditions.
Preferably, described the first mounting hole 9.1, the second mounting hole 9.2, the 3rd mounting hole 9.3 and the 4th mounting hole 9.4 are measure-alike mounting hole.Typically, described the first mounting hole 9.1, the second mounting hole 9.2, the 3rd mounting hole 9.3 and the 4th mounting hole 9.4 are threaded mounting hole, and this belongs to the mounting structure of typical screw thread inserting type duty valve.
Under optimal way, because integrated form multiple directional control valve of the present utility model has installed Fill valve 5 additional, thereby can improve significantly the repairing function of multiple directional control valve.In addition, owing to having formed four mounting holes at valve body, like this in the as installed process, when needs are for example changed into secondary relief valve 2 when being installed to the valve rod below from valve rod top, can change the outfit by above-mentioned the second mounting hole 9.2 and the 4th mounting hole 9.4 easily, if the size of each mounting hole is different in this case certainly, need to change pointedly the assembly department of secondary relief valve.Therefore under above-mentioned preferred mode, described the first mounting hole 9.1, the second mounting hole 9.2, the 3rd mounting hole 9.3 and the 4th mounting hole 9.4 are measure-alike mounting hole, be more convenient for like this adjustment of the mounting point of secondary relief valve 2, if for example for example change into secondary relief valve 2 when being installed to the valve rod below this moment from the valve rod top, then Fill valve 5 can be changed into from the mounting hole of valve rod below and change in the corresponding mounting hole that is installed to the valve rod top.The vertical installation direction of simultaneously pilot-actuated valve adjustment gets final product, and namely extends upward from changing into to downward-extension, when pilot-actuated valve is installed on the Returnning spring cover, needs only simply rotary reset spring shield.
By foregoing description as seen, the utility model provides a kind of layout form of brand-new integrated form multiple directional control valve, it can be in the situation that maintaining valve body profile size be less, satisfy simultaneously the multifunction of multi-way valve, the requirement such as easy to install, and can the on-the-spot installation position of changing flexibly secondary relief valve, Fill valve and pilot-actuated valve according to the requirement of engineering machinery mounting arrangement.
In order to help those skilled in the art more profoundly to understand the technical solution of the utility model, the exemplary configurations structure of four kinds of preferred implementations of the utility model integrated form multiple directional control valve is described referring to Figure 11 to Figure 14.
Need to prove, in Figure 11 to Figure 14, that two pilot-actuated valves adopt is the first solenoid valve 1a and the second solenoid valve 1b of selector valve form, but obviously also can adopt for those skilled in the art the pilot-actuated valve of other form, such as electromagnetic proportional valve, electro-hydraulic proportional valve etc.In addition, the secondary relief valve can adopt known relief valve, and for example the spool 2.1 that comprises mentioned above is regulated the known relief valves with certain repairing function such as core bar 2.2 and pressure regulation nut 2.3.In addition; in Figure 11 to Figure 14, analyse and observe the Fill valve of Fill valve 5 for commonly using that form shows; it comprises valve pocket 5.1, spool 5.2, Returnning spring 5.3 and screw plug 5.4 etc.; but also can adopt other known Fill valve; such as Fill valve of steel ball type one-way valve form etc., these all belong to protection domain of the present utility model.
Referring to shown in Figure 11, the first solenoid valve 1a and the second solenoid valve 1b are installed on the left side Returnning spring cover of corresponding one selector valve valve rod left end, and extend straight up to be conducive to wiring, the first mounting hole 9.1 and the 3rd mounting hole 9.3 be interior to be horizontally installed with respectively Fill valve 5, the second mounting holes 9.2 and the 4th mounting hole 9.4 is horizontally installed with respectively secondary relief valve 2.Apparently, because the first mounting hole 9.1 and the 3rd mounting hole 9.3 are in the top of valve rod, the second mounting hole 9.2 and the 4th mounting hole 9.4 are in the below of valve rod, therefore Fill valve 5 and the first solenoid valve 1a and the second solenoid valve 1b all are in the top of valve rod, secondary relief valve 2 all is in the below of valve rod, below repeats no more.
Referring to Figure 12, the first solenoid valve 1a and the second solenoid valve 1b are installed in respectively on the left side Returnning spring cover and right side Returnning spring cover at corresponding one selector valve valve rod two ends, and extend straight up to be conducive to wiring, the first mounting hole 9.1 and the 3rd mounting hole 9.3 be interior to be horizontally installed with respectively Fill valve 5, the second mounting holes 9.2 and the 4th mounting hole 9.4 is horizontally installed with respectively secondary relief valve 2.
Referring to Figure 13, the first solenoid valve 1a and the second solenoid valve 1b are installed on the left side Returnning spring cover of corresponding one selector valve valve rod left end, and extend straight down to be conducive to wiring, the first mounting hole 9.1 and the 3rd mounting hole 9.3 be interior to be horizontally installed with respectively secondary relief valve 2, the second mounting holes 9.2 and the 4th mounting hole 9.4 is horizontally installed with respectively Fill valve 5.
Referring to Figure 14, the first solenoid valve 1a and the second solenoid valve 1b are installed in respectively on the left side Returnning spring cover and right side Returnning spring cover at corresponding one selector valve valve rod two ends, and extend straight down to be conducive to wiring, the first mounting hole 9.1 and the 3rd mounting hole 9.3 be interior to be horizontally installed with respectively secondary relief valve 2, the second mounting holes 9.2 and the 4th mounting hole 9.4 is horizontally installed with respectively Fill valve 5.
What this need to further emphasize be, integrated form multiple directional control valve of the present utility model is not limited to Figure 11 to preferred implementation shown in Figure 14, for example, Figure 11 to Figure 14 adopts the first solenoid valve 1a of selector valve form and the second solenoid valve 1b as pilot-actuated valve, but this is a kind of of pilot-actuated valve, it can also adopt electromagnetic proportional valve, electro-hydraulic proportional valve etc., and the mounting type of pilot-actuated valve can adopt flange to connect, be threaded or the known Placement such as board-like connection, and the utility model is not restricted this.And for example, the secondary relief valve that adopts in Figure 11 to Figure 14 has certain repairing function, but also can adopt the secondary relief valve of other pattern, the secondary relief valve also can adopt the relief valve with repairing functional structure, and this all belongs to protection domain of the present utility model; For another example, the Fill valve 5 that adopts in Figure 11 to Figure 14, its spool are the valve rod form, but also can adopt other such as the steel ball type one-way valve as Fill valve; In addition, the setting type of above-mentioned Fill valve and secondary relief valve is all applicable equally to the multiple directional control valve of the control forms such as hydraulic control, manual control, in this case, pilot-actuated valve no longer needs, and only so that Fill valve and secondary relief valve are in the upper and lower of valve rod separately.The first mounting hole 9.1, the second mounting hole 9.2, the 3rd mounting hole 9.3 and the 4th mounting hole 9.4 can adopt identical size, size that also can be different, and this all belongs to protection domain of the present utility model.
Can be found out by upper description, the utility model advantage is: first, the utility model integrated form multiple directional control valve is vertically installed pilot-actuated valve (for example solenoid valve), its position and secondary relief valve lay respectively at the valve rod upper and lower, when having solved the installation of secondary relief valve, dismounting, pressure regulation and the pilot-actuated valve problem that may interfere, increased the convenience of Installation and Debugging.The second, under optimal way, the utility model is at the first working oil chamber a(and the second working oil chamber b) and oil back chamber t between increased Fill valve 5, greatly improved repairing performance and the reliability of multiple directional control valve; The 3rd, integrated form multiple directional control valve of the present utility model forms the first measure-alike mounting hole 9.1, the second mounting hole 9.2, the 3rd mounting hole 9.3 and the 4th mounting hole 9.4 at special position, is convenient to secondary relief valve and Fill valve and exchanges arbitrarily as required and be installed on the valve body; When the client need to change the pilot-actuated valve mode of connection, can be on-the-spot with pilot-actuated valve mounting base (for example Returnning spring cover) Rotate 180 °, so that arbitrarily conversion of pilot-actuated valve mounting type, be installed in outgoing line side or lower outgoing line side (Figure 11 and Figure 13, Figure 12 and Figure 14 change mutually), so that the same valve body has the mode of assembling flexibly, improved the various type of layout.The 4th, integrated form multiple directional control valve of the present utility model is (L17 among Figure 11 and Figure 13 for example because the installation dimension of pilot-actuated valve, L19, L20 among Figure 12 and Figure 14,) overlapping with secondary relief valve installation dimension L2, reduced the lateral length size of multi-way valve, so that the boundary dimension of multiple directional control valve is compacter.In addition, the size L18 among Figure 11 to Figure 14, L21 be the integrated form multiple directional control valve along stem shaft to whole lateral length size.
In general, by technique scheme of the present utility model, at first, because each pilot-actuated valve of the present utility model is arranged in a corresponding selector valve along the one or both sides (typically being arranged on the Returnning spring cover) of valve rod axial direction, and the secondary relief valve 2 same both sides of arranging along the valve rod axial direction, and pilot-actuated valve is vertically to install, the size that pilot-actuated valve and secondary relief valve are installed to be increased at the valve rod axial direction is overlapping, and with the axial dimension of the Returnning spring cover of corresponding selector valve be overlapping, even be at the valve rod axial direction within the axial dimension of Returnning spring cover, so layout is comparatively compact; The second, pilot-actuated valve of the present utility model and secondary relief valve 2 are in respectively the above and below of valve rod, and be very convenient so when mounted, avoided secondary relief valve and pilot-actuated valve to install, dismantle contingent interference, and therefore property easy for installation is good; The 3rd, the pilot-actuated valve of integrated form multiple directional control valve of the present utility model all is vertical installation (extend upward or to downward-extension), and therefore pilot-actuated valve to be carried out circuit comparatively convenient when connecting, the convenience of pilot-actuated valve wiring operation is better; The 4th, the pilot-actuated valve of integrated form multiple directional control valve of the present utility model extends upward or all is no more than to downward-extension upper surface or the lower surface of the valve body of corresponding selector valve, so the protective of pilot-actuated valve is better.
In addition, in a preferred embodiment, because integrated form multiple directional control valve of the present utility model has installed Fill valve 5 additional, thereby can improve significantly the repairing function of multiple directional control valve.In addition, be measure-alike mounting hole owing to having formed the first measure-alike mounting hole 9.1, the second mounting hole 9.2, the 3rd mounting hole 9.3 and the 4th mounting hole 9.4 at valve body, be more convenient for like this adjustment of the mounting point of secondary relief valve 2, so that the same valve body has the mode of assembling flexibly, improved the various type of layout.
Below describe by reference to the accompanying drawings preferred implementation of the present utility model in detail; but; the utility model is not limited to the detail in the above-mentioned mode of execution; in technical conceive scope of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
Need to prove that in addition each the concrete technical characteristics described in above-mentioned embodiment in reconcilable situation, can make up by any suitable mode.For fear of unnecessary repetition, the utility model is to the no longer separately explanation of various possible compound modes.
In addition, also can carry out combination in any between the various mode of execution of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (12)
1. integrated form multiple directional control valve, it is characterized in that, left side and/or the right side of valve rod axial direction vertically are equipped with pilot-actuated valve separately on the selector valve edge that respectively joins of this multiple directional control valve, and respectively join selector valve and be horizontally installed with respectively secondary relief valve (2) along left side and the right side of its valve rod axial direction
Described pilot-actuated valve is in the top of the valve rod of corresponding described selector valve, and described secondary relief valve (2) is in the below of described valve rod, and the upper end of described pilot-actuated valve is lower than the upper surface of the valve body of this corresponding described selector valve; Perhaps
Described pilot-actuated valve is in the below of the valve rod of corresponding described selector valve, and described secondary relief valve (2) is in the top of described valve rod, and the lower end of described pilot-actuated valve is higher than the lower surface of the valve body of this corresponding selector valve.
2. integrated form multiple directional control valve according to claim 1 is characterized in that, each described pilot-actuated valve is installed in respectively on the left side Returnning spring cover or right side Returnning spring cover at valve rod two ends of corresponding described selector valve.
3. integrated form multiple directional control valve according to claim 1 is characterized in that, described pilot-actuated valve is solenoid valve, electromagnetic proportional valve or the electro-hydraulic proportional valve of selector valve form.
4. each described integrated form multiple directional control valve in 3 according to claim 1, it is characterized in that, each valve body that joins described selector valve is formed with the first mounting hole (9.1) and the second mounting hole (9.2) that lays respectively at this valve rod above and below along the left side of its valve rod axial direction, the right side is formed with the 3rd mounting hole (9.3) and the 4th mounting hole (9.4) that lays respectively at described valve rod above and below, wherein said the first mounting hole (9.1) and the second mounting hole (9.2) separately with described valve body in the first working oil chamber (a) and oil back chamber (t) intersect, described the 3rd mounting hole (9.3) and the 4th mounting hole (9.4) separately with described valve body in the second working oil chamber (b) and described oil back chamber (t) intersect, wherein
Be horizontally installed with respectively described secondary relief valve (2) in described the first mounting hole (9.1) and the 3rd mounting hole (9.3), so that described secondary relief valve (2) is in the top of described valve rod, be horizontally installed with respectively Fill valve (5) in described the second mounting hole (9.2) and the 4th mounting hole (9.4); Perhaps be horizontally installed with respectively Fill valve (5) in described the first mounting hole (9.1) and the 3rd mounting hole (9.3), be horizontally installed with respectively described secondary relief valve (2) in described the second mounting hole (9.2) and the 4th mounting hole (9.4), so that described secondary relief valve (2) is in the below of described valve rod.
5. integrated form multiple directional control valve according to claim 4 is characterized in that, described the first mounting hole (9.1), the second mounting hole (9.2), the 3rd mounting hole (9.3) and the 4th mounting hole (9.4) are measure-alike mounting hole.
6. integrated form multiple directional control valve according to claim 4 is characterized in that, described the first mounting hole (9.1), the second mounting hole (9.2), the 3rd mounting hole (9.3) and the 4th mounting hole (9.4) are threaded mounting hole.
7. integrated form multiple directional control valve according to claim 4, it is characterized in that, described pilot-actuated valve comprises the first pilot-actuated valve and the second pilot-actuated valve, described the first pilot-actuated valve and the second pilot-actuated valve are installed on the left side Returnning spring cover of corresponding described selector valve valve rod left end, be horizontally installed with respectively described Fill valve (5) in described the first mounting hole (9.1) and the 3rd mounting hole (9.3), be horizontally installed with respectively described secondary relief valve (2) in described the second mounting hole (9.2) and the 4th mounting hole (9.4).
8. integrated form multiple directional control valve according to claim 4, it is characterized in that, described pilot-actuated valve comprises the first pilot-actuated valve and the second pilot-actuated valve, described the first pilot-actuated valve and the second pilot-actuated valve are installed in respectively on the left side Returnning spring cover and right side Returnning spring cover at corresponding described selector valve valve rod two ends, be horizontally installed with respectively described Fill valve (5) in described the first mounting hole (9.1) and the 3rd mounting hole (9.3), be horizontally installed with respectively described secondary relief valve (2) in described the second mounting hole (9.2) and the 4th mounting hole (9.4).
9. integrated form multiple directional control valve according to claim 4, it is characterized in that, described pilot-actuated valve comprises the first pilot-actuated valve and the second pilot-actuated valve, described the first pilot-actuated valve and the second pilot-actuated valve are installed on the left side Returnning spring cover of corresponding described selector valve valve rod left end, be horizontally installed with respectively described secondary relief valve (2) in described the first mounting hole (9.1) and the 3rd mounting hole (9.3), be horizontally installed with respectively described Fill valve (5) in described the second mounting hole (9.2) and the 4th mounting hole (9.4).
10. integrated form multiple directional control valve according to claim 4, it is characterized in that, described pilot-actuated valve comprises the first pilot-actuated valve and the second pilot-actuated valve, described the first pilot-actuated valve and the second pilot-actuated valve are installed in respectively on the left side Returnning spring cover and right side Returnning spring cover at corresponding described selector valve valve rod two ends, be horizontally installed with respectively described secondary relief valve (2) in described the first mounting hole (9.1) and the 3rd mounting hole (9.3), described the second mounting hole (9.2) and the 4th mounting hole (9.4) are horizontally installed with respectively described Fill valve (5).
11. integrated form multiple directional control valve, it is characterized in that, the selector valve that respectively joins of this integrated form multiple directional control valve is horizontally installed with respectively secondary relief valve (2) along left side and the right side of its valve rod axial direction, and each described secondary relief valve all is in below or the top of the valve rod of corresponding described selector valve;
The valve body edge that respectively joins selector valve of described integrated form multiple directional control valve is formed with the first mounting hole (9.1) and the second mounting hole (9.2) that lays respectively at this valve rod above and below in the left side of valve rod axial direction separately, the right side is formed with the 3rd mounting hole (9.3) and the 4th mounting hole (9.4) that lays respectively at described valve rod above and below, wherein said the first mounting hole (9.1) and the second mounting hole (9.2) separately with described valve body in the first working oil chamber (a) and oil back chamber (t) intersect, described the 3rd mounting hole (9.3) and the 4th mounting hole (9.4) separately with described valve body in the second working oil chamber (b) and described oil back chamber (t) intersect, wherein
Be horizontally installed with respectively described secondary relief valve (2) in described the second mounting hole (9.2) and the 4th mounting hole (9.4), so that described secondary relief valve (2) is in the below of described valve rod, be horizontally installed with respectively Fill valve (5) in described the first mounting hole (9.1) and the 3rd mounting hole (9.3), so that described Fill valve (5) is in the top of described valve rod; Perhaps be horizontally installed with respectively described secondary relief valve (2) in described the first mounting hole (9.1) and the 3rd mounting hole (9.3), so that described secondary relief valve (2) is in the top of described valve rod, be separately installed with Fill valve (5) in described the second mounting hole (9.2) and the 4th mounting hole (9.4), so that described Fill valve (5) is in the below of described valve rod.
12. integrated form multiple directional control valve according to claim 11 is characterized in that, described the first mounting hole (9.1), the second mounting hole (9.2), the 3rd mounting hole (9.3) and the 4th mounting hole (9.4) are measure-alike mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220544534 CN202833390U (en) | 2012-10-23 | 2012-10-23 | Integrated type multiple directional control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220544534 CN202833390U (en) | 2012-10-23 | 2012-10-23 | Integrated type multiple directional control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202833390U true CN202833390U (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220544534 Expired - Fee Related CN202833390U (en) | 2012-10-23 | 2012-10-23 | Integrated type multiple directional control valve |
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| Country | Link |
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| CN (1) | CN202833390U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822794A (en) * | 2016-05-17 | 2016-08-03 | 华南理工大学 | Valve |
-
2012
- 2012-10-23 CN CN 201220544534 patent/CN202833390U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822794A (en) * | 2016-05-17 | 2016-08-03 | 华南理工大学 | Valve |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20201023 |