CN204553381U - Load sensing multi-way valve first valve body and load sensing multi-way valve first - Google Patents
Load sensing multi-way valve first valve body and load sensing multi-way valve first Download PDFInfo
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- CN204553381U CN204553381U CN201520028177.2U CN201520028177U CN204553381U CN 204553381 U CN204553381 U CN 204553381U CN 201520028177 U CN201520028177 U CN 201520028177U CN 204553381 U CN204553381 U CN 204553381U
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Abstract
The utility model relates to a kind of load sensing multi-way valve first valve body and load sensing multi-way valve first, wherein, load sensing multi-way valve first valve body comprises valve block body, and valve block body is provided with filler opening, return opening, load feedback mouth, the safe valve opening of main and secondary security valve opening; Main oil suction chamber, main oil back chamber, chamber, main spring side and main is formed without chamber, spring side between the safe valve opening of main and main safety lever; Secondary oil suction chamber, secondary oil back chamber, secondary chamber, spring side and secondary without chamber, spring side is formed between secondary security valve opening and secondary security valve rod; The oil duct that filler opening and chamber, main spring side are communicated with secondary oil suction chamber arranges damping or stifled, corresponding, the oil duct that load feedback mouth and chamber, main spring side are communicated with secondary oil suction chamber arranges stifled or damping.The utility model only need exchange position that is stifled and damping just can be suitable for metering pump load sensitive system or variable displacement pump load sensitive system, enhances the host adaptation of multi-way valve, realizes multi-purpose valve.
Description
Technical field
The utility model relates to engineering machinery field, particularly relates to a kind of load sensing multi-way valve first valve body and load sensing multi-way valve first.
Background technique
Load sensitive system is that one experiences system pressure-traffic demand, and only provides the oil hydraulic circuit of required flow and pressure.Load sensing multi-way valve is the core parts of construction machinery hydraulic system, and between pump and executive component, when each executive component work, working flow is only relevant to spool aperture, and has nothing to do with induced pressure.Although current load sensing multi-way valve valve body profile is simple, but its internal galleries is designed with different complicated inner cavity and long narrow special-shaped hole slot, the extremely complicated and poor universality of casting technique, therefore project organization is reasonable, compact, highly versatile, the multi-way valve body of reliable performance has very large use value in engineering machinery field.
Current load sensing multi-way valve first, its valve body comprises control oil inlet P, oil return inlet T, guide's oil duct, high-pressure oil duct, low pressure oil duct etc., during first work, the pressure of actuator port by the oilhole entering signal oil pocket on corresponding selector valve valve rod, then is drawn through shuttle valve, and operating oil pressure and signal oil pressure are delivered to oil-feed connection, feed back to load sensitive pump again, realize the load-sensitive function of system.
Existing load sensing multi-way valve first, spininess designs single engineering machinery main computer boxes, the corresponding a kind of load sensing multi-way valve of a kind of main computer boxes.A demand for main computer boxes function, the valve body of corresponding a kind of load sensing multi-way valve first.Further, generally only have the function of safety valve, functional form is single.
Model utility content
The purpose of this utility model proposes a kind of load sensing multi-way valve first valve body and load sensing multi-way valve first, and it can improve host adaptation, realizes multi-purpose valve.
For achieving the above object, the utility model provides a kind of load sensing multi-way valve first valve body, it comprises valve block body, described valve block body is provided with filler opening, return opening and load feedback mouth, is provided with the safe valve opening of main and secondary security valve opening in described valve block body;
Main oil suction chamber, main oil back chamber, chamber, main spring side and main is at least formed without chamber, spring side between the safe valve opening of described main and its inner main safety lever arranged; Described main oil suction chamber is communicated with without chamber, spring side with described main with described filler opening, and described main oil back chamber is communicated with described return opening;
Secondary oil suction chamber, secondary oil back chamber, secondary chamber, spring side and secondary without chamber, spring side is at least formed between described secondary security valve opening and its inner secondary security valve rod arranged; Described secondary oil suction chamber to be secondaryly communicated with without chamber, spring side with described, and described secondary oil back chamber is communicated with described return opening;
Described filler opening is communicated with described secondary oil suction chamber with chamber, described main spring side by oil duct; Described load feedback mouth is communicated with described secondary oil suction chamber with chamber, described main spring side by oil duct;
Different according to from the pump that described filler opening is communicated with, selectivity is arranged as follows:
The oil duct that described filler opening and chamber, described main spring side are communicated with described secondary oil suction chamber arranges damping, the oil duct that described load feedback mouth and chamber, described main spring side are communicated with described secondary oil suction chamber is arranged stifled;
Or,
The oil duct that described filler opening and chamber, described main spring side are communicated with described secondary oil suction chamber is arranged stifled, the oil duct that described load feedback mouth and chamber, described main spring side are communicated with described secondary oil suction chamber arranges damping.
One preferably or in embodiment, described filler opening and chamber, described main spring side are communicated with described secondary oil suction chamber and arrange damping or stifled oil duct is arranged in described main safety lever, and described load feedback mouth and chamber, described main spring side are communicated with described secondary oil suction chamber and arrange oil duct that is stifled or damping and be arranged in described valve block body.
One preferably or in embodiment, described valve block body is also provided with meta off-load valve opening, meta off-load oil suction chamber, meta off-load oil back chamber, chamber, meta unloading spring side and meta off-load is at least formed without chamber, spring side between the meta off-load valve rod of described meta off-load valve opening and its inside, described meta off-load oil suction chamber is communicated with without chamber, spring side with described meta off-load with described filler opening, described meta off-load oil back chamber is communicated with described return opening, and chamber, described meta unloading spring side is communicated with described load feedback mouth.
One preferably or in embodiment, described valve block body is also provided with dynamic antivibration valve opening, between described dynamic antivibration valve opening and its inner dynamic antivibration valve rod arranged at least formative dynamics damping oil suction chamber, dynamic antivibration oil back chamber, chamber, dynamic antivibration spring side and dynamic antivibration without chamber, spring side; Described dynamic antivibration oil suction chamber is communicated with described filler opening, the oil duct that described dynamic antivibration oil suction chamber is communicated with described filler opening is provided with damping duct, on the oil duct that described damping duct is communicated with described filler opening, other being connected to is communicated with the oil duct of described dynamic antivibration without chamber, spring side, on the oil duct that described damping duct is communicated with described dynamic antivibration oil suction chamber, side is connected to the oil duct being communicated with chamber, described dynamic antivibration spring side, and described dynamic antivibration oil back chamber is communicated with described return opening.
One preferably or in embodiment, described valve block body also arranges LS pressure tap, and described LS pressure tap is communicated with described load feedback mouth.
One preferably or in embodiment, described valve block body is also provided with oil-feed pressure tap, and described oil-feed pressure tap is communicated with described filler opening.
One preferably or in embodiment, described load feedback mouth, described LS pressure tap and described oil-feed pressure tap are arranged in the same side of described valve block body.
One preferably or in embodiment, the safe valve opening of described main and described meta off-load valve opening run through whole described valve block body, and the end that the safe valve opening of described main and described meta off-load valve opening pass described valve block body is positioned at the same side of described valve block body.
One preferably or in embodiment, described filler opening is two, two described filler openings are communicated with, and run through whole described valve block body, described return opening is two, and two described return openings are communicated with, and run through whole described valve block body.
Preferably or in embodiment one, valve rod is set in return opening described in one of them and forms one-way valve.
One preferably or in embodiment, described filler opening and described return opening adopt Flange joint oil pipe.
For achieving the above object, the utility model additionally provides a kind of load sensing multi-way valve first, and it comprises the load sensing multi-way valve first valve body in above-mentioned any embodiment.
One preferably or in embodiment, the safe valve opening of main in described load sensing multi-way valve first valve body and its inner main safety lever arranged form main safety valve, and the secondary security valve opening in described load sensing multi-way valve first valve body and its inner secondary security valve rod arranged form secondary security valve.
One preferably or in embodiment, the meta off-load valve opening in described load sensing multi-way valve first valve body and the meta unloading valve bar of its inside form meta unloading valve.
One preferably or in embodiment, the dynamic antivibration valve rod formative dynamics orifice valve that the dynamic antivibration valve opening in described load sensing multi-way valve first valve body is arranged with its inside, is provided with damping in the damping duct in described load sensing multi-way valve first valve body.
Based on technique scheme, the utility model at least has following beneficial effect:
The load sensing multi-way valve first valve body that the utility model provides, adopt load-sensitive modular design, make load sensing multi-way valve only need exchange position that is stifled and damping and just can be suitable for metering pump load sensitive system or variable displacement pump load sensitive system, strengthen the host adaptation of multi-way valve, realize multi-purpose valve.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, and form a application's part, schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
The schematic front view of the load sensing multi-way valve first valve body that Fig. 1 provides for the utility model;
Fig. 2 is for looking schematic diagram in a left side for the load sensing multi-way valve first valve body that the utility model provides;
The schematic top plan view of the load sensing multi-way valve first valve body that Fig. 3 provides for the utility model;
The cross-sectional schematic of the load sensing multi-way valve first valve body that Fig. 4 provides for the utility model;
The cross-sectional schematic of the load-sensitive module of the load sensing multi-way valve first valve body that Fig. 5 provides for the utility model;
The partial schematic sectional view of the load-sensitive module of the load sensing multi-way valve first valve body that Fig. 6 provides for the utility model.
Attached number in the figure:
The safe valve opening of 1-main; 2-secondary security valve opening; 3-meta off-load valve opening; 4-dynamic antivibration valve opening; 5-filler opening; 6-return opening; 7-load feedback mouth; 8-LS pressure tap; 9-oil-feed pressure tap; 10-damping; 11-blocks up;
21-first oil duct; 22-second oil duct; 23-the 3rd oil duct; 24-the 4th oil duct; 25-the 5th oil duct; 26-the 6th oil duct; 27-the 7th oil duct; 28-the 8th oil duct; 29-the 9th oil duct.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in embodiment is clearly and completely described.Obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on embodiment of the present utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As Figure 1-3, for the illustrative examples of the load sensing multi-way valve first valve body that the utility model provides, in this illustrative examples, load sensing multi-way valve first valve body comprises valve block body, valve block body is at least provided with filler opening 5, return opening 6 and load feedback mouth 7, in valve block body, is at least provided with the safe valve opening 1 of main and secondary security valve opening 2.
As shown in Figure 5, main oil suction chamber, main oil back chamber, chamber, main spring side and main is at least formed without chamber, spring side between the safe valve opening 1 of main and its inner main safety lever arranged; Main oil suction chamber is communicated with without chamber, spring side with main with filler opening 5, and main oil back chamber is communicated with return opening 6.
Secondary oil suction chamber, secondary oil back chamber, secondary chamber, spring side and secondary without chamber, spring side is at least formed between secondary security valve opening 2 and its inner secondary security valve rod arranged; Secondary oil suction chamber is communicated with without chamber, spring side with secondary, and secondary oil back chamber is communicated with return opening 6.
Filler opening 5 is communicated with secondary oil suction chamber with chamber, main spring side by oil duct; Load feedback mouth 7 is communicated with secondary oil suction chamber with chamber, main spring side by oil duct.
Different according to from the pump that filler opening 5 is communicated with, selectivity is arranged as follows:
The oil duct that filler opening 5 and chamber, main spring side are communicated with secondary oil suction chamber arranges damping 10, the oil duct that load feedback mouth 7 and chamber, main spring side are communicated with secondary oil suction chamber arranges stifled 11; Make load feedback loop when oil channel enters chamber, main spring side and secondary oil suction chamber, be blocked at stifled 11 places, filler opening 5 flows through damping 10 and the safe valve opening 1 of main, is blocked at secondary security valve opening 2 place, is applicable to variable displacement pump load sensitive system;
Or,
The oil duct that filler opening 5 and chamber, main spring side are communicated with secondary oil suction chamber arranges stifled 11, the oil duct that load feedback mouth 7 and chamber, main spring side are communicated with secondary oil suction chamber arranges damping 10; Make load feedback loop enter the safe valve opening 1 of main and secondary security valve opening 2 through overdamping 10, be blocked at stifled 11 places, be applicable to metering pump load sensitive system.
The load sensing multi-way valve first valve body that the utility model provides, only need exchange stifled 11 and the position of damping 10 just can be suitable for metering pump load sensitive system or variable displacement pump load sensitive system, enhance the host adaptation of multi-way valve, realize multi-purpose valve.
As shown in Figure 5, filler opening 5 and chamber, main spring side be communicated with secondary oil suction chamber and arrange damping 10 or stifled 11 oil duct can be arranged in main safety lever; Load feedback mouth 7 and chamber, main spring side be communicated with secondary oil suction chamber and arrange stifled 11 or the oil duct of damping 10 can be arranged in valve block body.
As shown in Figure 4, valve block body can also be provided with meta off-load valve opening 3, meta off-load oil suction chamber, meta off-load oil back chamber, chamber, meta unloading spring side and meta off-load at least can be formed without chamber, spring side between the meta off-load valve rod of meta off-load valve opening 3 and its inside, meta off-load oil suction chamber is communicated with without chamber, spring side with meta off-load with filler opening 5, meta off-load oil back chamber is communicated with return opening 6, and chamber, meta unloading spring side is communicated with load feedback mouth 7.
As shown in Figure 1, valve block body can also be provided with dynamic antivibration valve opening 4, between dynamic antivibration valve opening 4 and its inner dynamic antivibration valve rod arranged at least can formative dynamics damping oil suction chamber, dynamic antivibration oil back chamber, chamber, dynamic antivibration spring side and dynamic antivibration be without chamber, spring side; Dynamic antivibration oil suction chamber is communicated with filler opening 5, the oil duct that dynamic antivibration oil suction chamber is communicated with filler opening 5 is provided with damping duct, on the oil duct that damping duct is communicated with filler opening 5, other being connected to is communicated with the oil duct of dynamic antivibration without chamber, spring side, on the oil duct that damping duct is communicated with dynamic antivibration oil suction chamber, side is connected to the oil duct being communicated with chamber, dynamic antivibration spring side, and dynamic antivibration oil back chamber is communicated with return opening 6.
As shown in Figure 1, valve block body can also be arranged LS (Load Sensing, load-sensitive) pressure tap 8 and oil-feed pressure tap 9, LS pressure tap 8 is communicated with load feedback mouth 7, oil-feed pressure tap 9 is communicated with filler opening 5.Load feedback mouth 7, LS pressure tap 8 and oil-feed pressure tap 9 are arranged in the same side of valve block body, pressure signal collection point and maintenace point centralized arrangement, convenient collection of installing the data such as oil pipe and pressure.
As shown in Figure 4, the safe valve opening of main 1 and meta off-load valve opening 3 can run through whole valve block body, are connected by filler opening 5 with return opening 6.The two ends of the safe valve opening 1 of main and meta off-load valve opening 3 all can pass valve block body, one of them end of the safe valve opening 1 of main and one of them end of meta off-load valve opening 3 all can be positioned at the side of valve block body, and another end of the safe valve opening 1 of main and another end of meta off-load valve opening 3 all can be positioned at the opposite side of valve block body.
As shown in Figure 2, due to the safe valve opening 1 of main, meta off-load valve opening 3 and secondary security valve opening 2, need to regulate, the end that secondary security valve opening 2 passes valve block body also can be positioned at the valve block body side at the place, wherein one end of the safe valve opening 1 of main and meta off-load valve opening 3, conveniently regulates.
As shown in Figure 4, Figure 5, filler opening 5 can arrange two, and two filler openings 5 are communicated with, and run through whole valve block body, return opening 6 can arrange two, and two return openings 6 are communicated with, and runs through whole valve block body.In one of them return opening 6, valve rod can be set and form one-way valve.Pressure oil can be selected from any one two filler openings 5 or two oil-feeds simultaneously, from any one two return openings 6 or two oil returns simultaneously.
In above-mentioned illustrative examples, two filler openings 5 can be arranged up and down, and two return openings 6 also can be arranged up and down, pipeline are installed more convenient, select more.
In above-mentioned illustrative examples, filler opening 5 and return opening 6 all can adopt Flange joint oil pipe.Adopt Flange joint installation form, have that to install caliber large, withstand voltage height, not easily the advantage such as water clock.
As shown in Figure 6, the cross-sectional schematic of one specific embodiment of the load-sensitive multichannel first valve body installation load sensitive blocks provided for the utility model, in this specific embodiment, the first oil duct 21, second oil duct 22, the 3rd oil duct 23, the 4th oil duct 24, the 5th oil duct 25, the 6th oil duct 26, the 7th oil duct 27, the 8th oil duct 28 and the 9th oil duct 29 can be provided with in valve block body.
Wherein, 9th oil duct 29 is communicated with load feedback mouth 7 and the 8th oil duct 28, 8th oil duct 28 is communicated with the 7th oil duct 27, 7th oil duct 27 is communicated with the 4th oil duct 24, 4th oil duct 24 is communicated with the 6th oil duct 26 and the 3rd oil duct 23, 6th oil duct 26 is communicated with the 5th oil duct 25, 5th oil duct 25 is also communicated with the safe valve opening 1 of main, 3rd oil duct 23 can be communicated with the second oil duct 22 by the first oil duct 21, second oil duct 22 is communicated with return opening 6, between 3rd oil duct 23 and the first oil duct 21, secondary security valve opening 2 is set, after in secondary security valve opening 2, secondary security valve rod is set, being communicated with or blocking-up of the 3rd oil duct 23 and the first oil duct 21 can be realized by promoting secondary security valve rod.
In the internal galleries of the main safety lever in the safe valve opening 1 of main, damping 10 is installed, when installing stifled 11 in the 7th oil duct 27, make load feedback loop through the 9th oil duct 29, the 8th oil duct 28 and the 7th oil duct 27 place, be blocked at stifled 11 places, filler opening 5 flows through internal galleries and the damping 10 of main safety lever, cross the 5th oil duct 25, the 6th oil duct 26, the 4th oil duct 24, the 3rd oil duct 23, be blocked at secondary security valve opening 2 place, be applicable to variable displacement pump load sensitive system.
Stifled 11 are installed in the internal galleries of the main safety lever in the safe valve opening 1 of main, in the 7th oil duct 27, damping 10 is installed, make load feedback loop through the 9th oil duct 29, the 8th oil duct 28, the 7th oil duct 27, damping 10, the 4th oil duct 24, the 6th oil duct 26, the 5th oil duct 25, enter the internal galleries of main safety lever, be blocked stifled 11 places of installing in the internal galleries of main safety lever, be applicable to metering pump load sensitive system.
The load sensing multi-way valve first valve body that the utility model provides can be applied in load sensing multi-way valve first.
In the illustrative examples of the load sensing multi-way valve first provided at the utility model, the safe valve opening 1 of main in load sensing multi-way valve first valve body can form main safety valve with its inner main safety lever arranged, and the secondary security valve opening 2 in load sensing multi-way valve first valve body can form secondary security valve with its inner secondary security valve rod arranged.Meta off-load valve opening 3 in load sensing multi-way valve first valve body can form meta unloading valve with the meta off-load valve rod of its inside.Dynamic antivibration valve opening in load sensing multi-way valve first valve body 4 and its inner dynamic antivibration valve rod arranged can formative dynamics orifice valves, can be provided with damping in the damping duct in load sensing multi-way valve first valve body.
It should be noted that: in each embodiment above-mentioned, between mouth and mouth, between mouth and hole, and between Kong Yukong, all can be communicated with by arranging oil duct, arranging of oil duct can be formed by processing technology hole.
By the description of each embodiment above-mentioned, the utility model can be derived and at least have the following advantages:
1) the load sensing multi-way valve first valve body that provides of the utility model, adopt load-sensitive modular design, make load sensing multi-way valve only need exchange position that is stifled and damping and just can be suitable for metering pump load sensitive system or variable displacement pump load sensitive system, strengthen the host adaptation of multi-way valve, realize multi-purpose valve.
2) the load sensing multi-way valve first valve body that provides of the utility model, there is multiple duty valve block mounting point, there are safety valve, meta unloading valve, dynamic antivibration valve, one-way valve etc., different valve blocks can be selected according to demand to install, strengthen multi-way valve host adaptation.
3) the load sensing multi-way valve first valve body that provides of the utility model, pressure signal collection point and maintenace point centralized arrangement, be convenient to install, convenient for maintaining.
4) the load sensing multi-way valve first valve body that provides of the utility model, has two groups of filler openings and return opening, arranges up and down.
In sum, the load sensing multi-way valve first valve body that the utility model provides, its valve block body comprises filler opening, return opening, guide's oil duct, high-pressure oil duct, low pressure oil duct etc., possess the mounting points such as safety valve, meta unloading valve, dynamic antivibration valve, one-way valve simultaneously, metering pump load sensitive system and variable displacement pump load sensitive system can be applicable to simultaneously.All employings are equal to the multi-way valve first valve body structure of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.
In description of the present utility model; it will be appreciated that; use " first ", " second ", " the 3rd "; words such as " the 9 " limits component, is only used to be convenient to distinguish above-mentioned parts, as not having Stated otherwise; above-mentioned word does not have particular meaning, therefore can not be interpreted as the restriction to the utility model protection domain.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the field have been to be understood that: still can modify to embodiment of the present utility model or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technological scheme scope of the utility model request protection.
Claims (15)
1. a load sensing multi-way valve first valve body, it is characterized in that: comprise valve block body, described valve block body is provided with filler opening (5), return opening (6) and load feedback mouth (7), in described valve block body, is provided with the safe valve opening of main (1) and secondary security valve opening (2);
Main oil suction chamber, main oil back chamber, chamber, main spring side and main is at least formed without chamber, spring side between the safe valve opening of described main (1) and its inner main safety lever arranged; Described main oil suction chamber is communicated with without chamber, spring side with described main with described filler opening (5), and described main oil back chamber is communicated with described return opening (6);
Secondary oil suction chamber, secondary oil back chamber, secondary chamber, spring side and secondary without chamber, spring side is at least formed between described secondary security valve opening (2) and its inner secondary security valve rod arranged; Described secondary oil suction chamber to be secondaryly communicated with without chamber, spring side with described, and described secondary oil back chamber is communicated with described return opening (6);
Described filler opening (5) is communicated with described secondary oil suction chamber with chamber, described main spring side by oil duct; Described load feedback mouth (7) is communicated with described secondary oil suction chamber with chamber, described main spring side by oil duct;
Different according to from the pump that described filler opening (5) is communicated with, selectivity is arranged as follows:
The oil duct that described filler opening (5) and chamber, described main spring side are communicated with described secondary oil suction chamber arranges damping (10), the oil duct that described load feedback mouth (7) and chamber, described main spring side are communicated with described secondary oil suction chamber is arranged stifled (11);
Or,
The oil duct that described filler opening (5) and chamber, described main spring side are communicated with described secondary oil suction chamber is arranged stifled (11), the oil duct that described load feedback mouth (7) and chamber, described main spring side are communicated with described secondary oil suction chamber arranges damping (10).
2. load sensing multi-way valve first valve body as claimed in claim 1, it is characterized in that: described filler opening (5) and chamber, described main spring side are communicated with described secondary oil suction chamber and the oil duct arranging damping (10) or stifled (11) is arranged in described main safety lever, described load feedback mouth (7) and chamber, described main spring side are communicated with described secondary oil suction chamber and the oil duct arranging stifled (11) or damping (10) is arranged in described valve block body.
3. load sensing multi-way valve first valve body as claimed in claim 1, it is characterized in that: described valve block body is also provided with meta off-load valve opening (3), meta off-load oil suction chamber is at least formed between the meta off-load valve rod of described meta off-load valve opening (3) and its inside, meta off-load oil back chamber, chamber, meta unloading spring side and meta off-load are without chamber, spring side, described meta off-load oil suction chamber is communicated with without chamber, spring side with described meta off-load with described filler opening (5), described meta off-load oil back chamber is communicated with described return opening (6), chamber, described meta unloading spring side is communicated with described load feedback mouth (7).
4. the load sensing multi-way valve first valve body as described in any one of claim 1-3, it is characterized in that: described valve block body is also provided with dynamic antivibration valve opening (4), between described dynamic antivibration valve opening (4) and its inner dynamic antivibration valve rod arranged at least formative dynamics damping oil suction chamber, dynamic antivibration oil back chamber, chamber, dynamic antivibration spring side and dynamic antivibration without chamber, spring side; Described dynamic antivibration oil suction chamber is communicated with described filler opening (5), the oil duct that described dynamic antivibration oil suction chamber is communicated with described filler opening (5) is provided with damping duct, on the oil duct that described damping duct is communicated with described filler opening (5), other being connected to is communicated with the oil duct of described dynamic antivibration without chamber, spring side, on the oil duct that described damping duct is communicated with described dynamic antivibration oil suction chamber, side is connected to the oil duct being communicated with chamber, described dynamic antivibration spring side, and described dynamic antivibration oil back chamber is communicated with described return opening (6).
5. load sensing multi-way valve first valve body as claimed in claim 1, it is characterized in that: described valve block body is also arranged LS pressure tap (8), described LS pressure tap (8) is communicated with described load feedback mouth (7).
6. load sensing multi-way valve first valve body as claimed in claim 5, it is characterized in that: described valve block body is also provided with oil-feed pressure tap (9), described oil-feed pressure tap (9) is communicated with described filler opening (5).
7. load sensing multi-way valve first valve body as claimed in claim 6, is characterized in that: described load feedback mouth (7), described LS pressure tap (8) and described oil-feed pressure tap (9) are arranged in the same side of described valve block body.
8. load sensing multi-way valve first valve body as claimed in claim 3, it is characterized in that: the safe valve opening of described main (1) and described meta off-load valve opening (3) run through whole described valve block body, and the end that the safe valve opening of described main (1) and described meta off-load valve opening (3) pass described valve block body is positioned at the same side of described valve block body.
9. load sensing multi-way valve first valve body as claimed in claim 1, it is characterized in that: described filler opening (5) is two, two described filler openings (5) are communicated with, run through whole described valve block body, described return opening (6) is two, two described return openings (6) are communicated with, and run through whole described valve block body.
10. load sensing multi-way valve first valve body as claimed in claim 9, is characterized in that: arrange valve rod in return opening described in one of them (6) and form one-way valve.
11. load sensing multi-way valve first valve bodies as claimed in claim 1, is characterized in that: described filler opening (5) and described return opening (6) adopt Flange joint oil pipe.
12. 1 kinds of load sensing multi-way valve firsts, is characterized in that: comprise the load sensing multi-way valve first valve body as described in any one of claim 1-11.
13. load sensing multi-way valve firsts as claimed in claim 12, it is characterized in that: the safe valve opening of main (1) in described load sensing multi-way valve first valve body forms main safety valve with its inner main safety lever arranged, the secondary security valve opening (2) in described load sensing multi-way valve first valve body forms secondary security valve with its inner secondary security valve rod arranged.
14. load sensing multi-way valve firsts as claimed in claim 13, is characterized in that: the meta off-load valve opening (3) in described load sensing multi-way valve first valve body forms meta unloading valve with the meta unloading valve bar of its inside.
15. load sensing multi-way valve firsts as described in claim 13 or 14, it is characterized in that: the dynamic antivibration valve opening (4) in described load sensing multi-way valve first valve body and its inner dynamic antivibration valve rod formative dynamics orifice valve arranged, be provided with damping in the damping duct in described load sensing multi-way valve first valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520028177.2U CN204553381U (en) | 2015-01-16 | 2015-01-16 | Load sensing multi-way valve first valve body and load sensing multi-way valve first |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520028177.2U CN204553381U (en) | 2015-01-16 | 2015-01-16 | Load sensing multi-way valve first valve body and load sensing multi-way valve first |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204553381U true CN204553381U (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520028177.2U Withdrawn - After Issue CN204553381U (en) | 2015-01-16 | 2015-01-16 | Load sensing multi-way valve first valve body and load sensing multi-way valve first |
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| CN (1) | CN204553381U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840573A (en) * | 2015-01-16 | 2016-08-10 | 徐工集团工程机械股份有限公司 | Valve body of first link of load-sensitive multi-way valve and first link of load-sensitive multi-way valve |
-
2015
- 2015-01-16 CN CN201520028177.2U patent/CN204553381U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840573A (en) * | 2015-01-16 | 2016-08-10 | 徐工集团工程机械股份有限公司 | Valve body of first link of load-sensitive multi-way valve and first link of load-sensitive multi-way valve |
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Granted publication date: 20150812 Effective date of abandoning: 20180406 |