CN102022394B - Integral manual multi-way reversing valve - Google Patents
Integral manual multi-way reversing valve Download PDFInfo
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- CN102022394B CN102022394B CN 201010617838 CN201010617838A CN102022394B CN 102022394 B CN102022394 B CN 102022394B CN 201010617838 CN201010617838 CN 201010617838 CN 201010617838 A CN201010617838 A CN 201010617838A CN 102022394 B CN102022394 B CN 102022394B
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Abstract
The invention provides a technical scheme of an integral manual multi-way reversing valve. The technical scheme is characterized in that a three-position slide valve opening is communicated with a left oil return cavity, a three-position slide valve left oil outlet cavity, a three-position slide valve oil inlet left cavity, an oil inlet left cavity, a secondary oil inlet cavity, an oil inlet right cavity, a three-position slide valve oil inlet right cavity, a three-position slide valve right oil outlet cavity and a right oil return cavity; a four-position slide valve opening is communicated with the left oil return cavity, a four-position slide valve left oil outlet cavity, a four-position slide valve oil inlet cavity, a secondary oil inlet left cavity, an oil return cavity, a secondary oil inlet right cavity, a four-position slide valve right oil outlet cavity and the right oil return cavity; a three-position slide valve oil feeding valve is arranged between the right oil return cavity and the three-position slide valve right oil outlet cavity; a four-position slide valve oil feeding valve is arranged between the right oil return cavity and the four-position slide valve right oil outlet cavity; a left overload valve and a right overload valve are integrated in a valve body; the oil inlet end of the left overload valve is communicated with the left oil outlet cavity of the three-position slide valve, and the overflow port end of the left overload valve is communicated with the left oil return cavity; and the oil inlet end of the right overload valve is communicated with the right oil outlet cavity of the three-position slide valve, and the overflow port end of the right overload valve is communicated with the right oil return cavity.
Description
Technical field
What the present invention relates to is a kind of integral manual multi-path reversing valve in the multiple directional control valve of using in a kind of construction machinery hydraulic system, the especially loader hydraulic system.
Background technique
In the prior art; be well known that the applicant applies for and published No. 200810014141.3 patents; this patent also is the multi-way valve that uses in a kind of loader hydraulic system; this multi-way valve is not integrated in respectively overload valve and Fill valve on the valve body; although the advantage that reduces volume is arranged; but can not satisfy the repairing performance of both having looked after Fill valve; can guarantee again the overload protective function of overload valve; make repairing performance and overload protection technical performance between the two be difficult to balance; therefore; being in operation quality fault frequently to occur, and this is the existing deficiency of prior art.
Summary of the invention
Purpose of the present invention is exactly for the existing deficiency of prior art, and a kind of integral manual multi-path reversing valve technological scheme is provided, and this scheme is integrated in overload protection and repairing performance in the valve body respectively by overload valve and Fill valve and realizes.In addition; the right side of four guiding valves goes out oil pocket and is communicated with the epicoele of oil cylinder; in actual conditions; the repairing state also needing often can appear; therefore go out to be integrated with between oil pocket and the right oil back chamber Fill valve to satisfy its needs on four guiding valve right sides; and so that this product has volume is little, quality is light, the pressure loss is little, the little manipulation of steering force is convenient, use also safer.
This programme is achieved by the following technical measures: include valve body, there is filler opening to communicate with oil suction chamber at valve body, have oil outlet to communicate with oil back chamber, described oil suction chamber is communicated with the left chamber of oil-feed and the right chamber of oil-feed, and described oil back chamber is communicated with left oil back chamber and right oil back chamber; In described valve body, transversely be furnished with down axis parallel three sliding valve holes and four sliding valve holes, in described three sliding valve holes, three guiding valves are housed, one end of these three guiding valves stretches out valve body, the other end connects three guiding valves and decides resetting-mechanism, in described four sliding valve holes, four guiding valves are housed, one end of these four guiding valves stretches out valve body, and the other end connects four guiding valve positioning meanss; On described valve body, corresponding three guiding valves have three left oil inlet and outlets of guiding valve and three right oil inlet and outlets of guiding valve, and corresponding four guiding valves have four left oil inlet and outlets of guiding valve and four right oil inlet and outlets of guiding valve; In addition, safety valve, three guiding valve one-way valves and four guiding valve one-way valves also are housed on described valve body, the characteristics of this programme are, described three sliding valve holes and left oil back chamber, three guiding valve left sides go out oil pocket, three left chambeies of guiding valve oil-feed, the left chamber of oil-feed, two-stage oil feeding chamber, the right chamber of oil-feed, three right chambeies of guiding valve oil-feed, three guiding valve right sides go out oil pocket and right oil back chamber is communicated with; Described four sliding valve holes and left oil back chamber, four guiding valve left sides go out oil pocket, four guiding valve oil suction chambers, the left chamber of two-stage oil feeding, oil back chamber, the right chamber of two-stage oil feeding, four guiding valve right sides go out oil pocket and right oil back chamber is communicated with; Described two-stage oil feeding chamber is communicated with the left chamber of oil-feed and the right chamber of oil-feed at three sliding valve holes, and this two-stage oil feeding chamber is communicated with again the left chamber of two-stage oil feeding and the right chamber of two-stage oil feeding; The left oil inlet and outlet of described three guiding valves is communicated with three guiding valve left sides and goes out oil pocket, and the right oil inlet and outlet of described three guiding valves is communicated with three guiding valve right sides and goes out oil pocket; The left oil inlet and outlet of described four guiding valves is communicated with four guiding valve left sides and goes out oil pocket, and the right oil inlet and outlet of described four guiding valves is communicated with four guiding valve right sides and goes out oil pocket; Go out to be provided with between the oil pocket three guiding valve Fill valves at right oil back chamber and three guiding valve right sides, control right oil back chamber and three guiding valve right sides and go out unilaterally connected between the oil pocket; Go out to be provided with between the oil pocket four guiding valve Fill valves at right oil back chamber and four guiding valve right sides, control right oil back chamber and four guiding valve right sides and go out unilaterally connected between the oil pocket; In described valve body, also be integrated with left overload valve and right overload valve, described left overload valve oil inlet end goes out oil pocket with three guiding valve left sides and is communicated with, the flow-off end is communicated with left oil back chamber, and described right overload valve oil inlet end goes out oil pocket with three guiding valve right sides and is communicated with, and the flow-off end is communicated with right oil back chamber.The concrete characteristics of this programme also have, and described three guiding valve one-way valves are controlled the unilaterally connected between oil suction chamber and three the guiding valve oil suction chambers between oil suction chamber and three guiding valve oil suction chambers.Described four guiding valve one-way valves between two-stage oil feeding chamber and four guiding valve oil suction chambers, the unilaterally connected between control two-stage oil feeding chamber and four the guiding valve oil suction chambers.The oil inlet end of described safety valve is communicated with oil suction chamber, and the flow-off end is communicated with left oil back chamber.The valve body that described four sliding valve holes go out between oil pocket and the left oil back chamber on four guiding valve left sides has four sliding valve hole compensating grooves.Corresponding four sliding valve hole compensating grooves have four uniform guiding valve compensating grooves on the cylinder of described four guiding valves.Described four guiding valve compensating grooves are the cellular type compensating groove.
The beneficial effect of this programme can be learnt according to the narration to such scheme, because overload valve separates integrated with Fill valve in this scheme, so that overload is not disturbed mutually with the repairing function, greatly improved the reliable in quality performance of product, can effectively reduce the fault of product.In addition, owing to being integrated with four guiding valve Fill valves, can realize the repairing function to four right oil inlet and outlets of guiding valve, satisfy four guiding valve right sides and gone out oil pocket is communicated with the frequent repairing of needs with the epicoele of oil cylinder demand.This scheme is because three guiding valves and four guiding valves all are to adopt solid construction, and the guiding valve diameter also can dwindle greatly, has reduced the difficulty of processing of guiding valve, has also significantly reduced internal leakage.Simultaneously on four sliding valve holes again the hole have compensating groove, to circular hole formula compensating groove should be arranged, this can alleviate again the steering force to four guiding valves on four guiding valves.So that this scheme has reliable operation, amount of leakage is low, compact structure, and volume is little, quality is light, the pressure loss is little, uses saferly, handles more easily characteristics.This programme by the move left and right of controlling three guiding valves can realize easily fluid filler opening, three left oil inlet and outlets of guiding valve and right oil outlet and and return opening between break-make control, can realize loader on turn over, in stop and under turn over function.By the move left and right of controlling four guiding valves can realize easily fluid filler opening, four left oil inlet and outlets of guiding valve and right oil outlet and and return opening between break-make control, and then realize loader lifting, in stop, decline and float function.Can realize easily the anti-control of nodding of oil cylinder by three integrated guiding valve one-way valves, four guiding valve one-way valves.By the pressure setting of safety valve, can realize the effective protection to hydraulic system.By the pressure setting to left and right overload valve, can realize the pressure control to three left and right oil outlets of guiding valve.Control by three guiding valve Fill valves can realize the repairing function to three right oil inlet and outlets of guiding valve; Control by four guiding valve Fill valves can realize the repairing function to four right oil inlet and outlets of guiding valve.This shows, the present invention compared with prior art has outstanding substantive distinguishing features and significant progressive, and the beneficial effect of its enforcement also is apparent.
Description of drawings:
Fig. 1 is the structural representation of the specific embodiment of the invention.
Fig. 2 is the backsight structural representation of Fig. 1.
Fig. 3 is the A-A sectional structure schematic diagram of Fig. 1.
Fig. 4 is the B-B sectional structure schematic diagram of Fig. 3.
Fig. 5 is the C-C sectional structure schematic diagram of Fig. 1.
Fig. 6 is the D-D sectional structure schematic diagram of Fig. 1
Fig. 7 is the G-G sectional structure schematic diagram of Fig. 2.
Among the figure, 1 is valve body, and 2 is three guiding valve oil suction chambers, 2.1 three left chambeies of guiding valve oil-feed, 2.2 three right chambeies of guiding valve oil-feed, 3 is filler opening, and 4 is oil suction chamber, 4.1 be the left chamber of oil-feed, 4.2 be the right chamber of oil-feed, 5 is four sliding valve holes, 5.1 is four sliding valve hole compensating grooves, 6 is that three guiding valve right sides go out oil pocket, 7 is three guiding valve Fill valves, and 8 is three guiding valves, and 9 is right oil back chamber, 10 is four guiding valves, 10.1 be four slide valve circle cellular type compensating grooves, 11 is that four guiding valve right sides go out oil pocket, 12 is the two-stage oil feeding chamber, 12.1 be the left chamber of two-stage oil feeding, 12.2 be the right chamber of two-stage oil feeding, 13 is oil back chamber, 14 is four guiding valve oil suction chambers, 15 is that four guiding valve left sides go out oil pocket, 16 is four guiding valve positioning meanss, and 17 is left oil back chamber, and 18 is that three guiding valves are decided resetting-mechanism, 19 is safety valve, 20 is that three guiding valve left sides go out oil pocket, and 21 is three sliding valve holes, and 22 is three guiding valve one-way valves, 23 is four guiding valve Fill valves, 24 is four right oil inlet and outlets of guiding valve, and 25 is four left oil inlet and outlets of guiding valve, and 26 is left overload valve, 27 is right overload valve, 28 is three right oil inlet and outlets of guiding valve, and 29 is three left oil inlet and outlets of guiding valve, and 30 is four guiding valve one-way valves, 31 is oil outlet
Embodiment:
For clearly demonstrating the technical characterstic of this programme, below by an embodiment, and in conjunction with its accompanying drawing, this programme is set forth.
Can find out by accompanying drawing, the integral manual multi-path reversing valve of this programme has valve body 1, there is filler opening 3 to communicate with oil suction chamber 4 at valve body 1, there is oil outlet 31 to communicate with oil back chamber 13, described oil suction chamber 4 is communicated with the left chamber 4.1 of oil-feed and the right chamber 4.2 of oil-feed, and described oil back chamber 13 is communicated with left oil back chamber 17 and right oil back chamber 9.In described valve body 1, transversely be furnished with down axis parallel three sliding valve holes 21 and four sliding valve holes 5, in described three sliding valve holes 21, three guiding valves 8 are housed, one end of these three guiding valves 8 stretches out valve body 1, and the other end connects three guiding valves and decides resetting-mechanism 18; In described four sliding valve holes 5 four guiding valves 10 are housed, an end of these four guiding valves 10 stretches out valve body 1, and the other end connects four guiding valve positioning meanss 16.On described valve body 1, corresponding three guiding valves 8 have three left oil inlet and outlets 29 of guiding valve and three right oil inlet and outlets 28 of guiding valve; Corresponding four guiding valves 10 have four left oil inlet and outlets 25 of guiding valve and four right oil inlet and outlets 24 of guiding valve.In addition, safety valve 19, three guiding valve one-way valves 22 and four guiding valve one-way valves 30 also are housed on described valve body 1.Described three sliding valve holes 21 of this programme and left oil back chamber 17, three guiding valve left sides go out oil pocket 20, three left chambeies 2.1 of guiding valve oil-feed, the left chamber 4.1 of oil-feed, two-stage oil feeding chamber 12, the right chamber 4.2 of oil-feed, three right chambeies 2.2 of guiding valve oil-feed, three guiding valve right sides go out oil pocket 6 and right oil back chamber 9 is communicated with; Described four sliding valve holes 5 and left oil back chamber 17, four guiding valve left sides go out oil pocket 15, four guiding valve oil suction chambers 14, the left chamber 12.1 of two-stage oil feeding, oil back chamber 13, the right chamber 12.2 of two-stage oil feeding, four guiding valve right sides go out oil pocket 11 and right oil back chamber 9 is communicated with.Described oil suction chamber 4 and three guiding valve oil suction chambers 2 are the Dual-layer structure, and these three guiding valve oil suction chambers 2 are divided into three left chambeies 2.1 of guiding valve oil-feed and three right chambeies 2.2 of guiding valve oil-feed; Described two-stage oil feeding chamber 12 is communicated with in the left chamber 4.1 of three sliding valve holes 21 and oil-feed and the right chamber 4.2 of oil-feed, and this two-stage oil feeding chamber 12 is communicated with again the left chamber 12.1 of two-stage oil feeding and the right chamber 12.2 of two-stage oil feeding.The left oil inlet and outlet 29 of described three guiding valves is communicated with three guiding valve left sides and goes out oil pocket 20, and the right oil inlet and outlet 28 of described three guiding valves is communicated with three guiding valve right sides and goes out oil pocket 6; The left oil inlet and outlet 25 of described four guiding valves is communicated with four guiding valve left sides and goes out oil pocket 15, and the right oil inlet and outlet 24 of described four guiding valves is communicated with four guiding valve right sides and goes out oil pocket 11.Go out to be provided with three guiding valve Fill valves 7 between the oil pocket 6 at right oil back chamber 9 and three guiding valve right sides, control right oil back chamber 9 and three guiding valve right sides and go out unilaterally connected between the oil pocket 6; Go out to be provided with four guiding valve Fill valves 23 between the oil pocket 11 at right oil back chamber 9 and four guiding valve right sides, control right oil back chamber 9 and four guiding valve right sides and go out unilaterally connected between the oil pocket 11.Also be integrated with left overload valve 26 and right overload valve 27 in described valve body 1, described left overload valve 26 oil inlet ends go out oil pocket 20 with three guiding valve left sides and are communicated with, and the flow-off end is communicated with left oil back chamber 17; Described right overload valve 27 oil inlet ends go out oil pocket 6 with three guiding valve right sides and are communicated with, and the flow-off end is communicated with right oil back chamber 9.Described three the guiding valve one-way valves 22 of this programme between oil suction chamber 4 and three guiding valve oil suction chambers 2, the unilaterally connected between control oil suction chamber 4 and three the guiding valve oil suction chambers 2.Described four guiding valve one-way valves 30 between two-stage oil feeding chamber 12 and four guiding valve oil suction chambers 14, the unilaterally connected between control two-stage oil feeding chamber 12 and four the guiding valve oil suction chambers 14.The oil inlet end of described safety valve 19 is communicated with oil suction chamber 4, and the flow-off end is communicated with left oil back chamber 17.The valve body 1 that described four sliding valve holes 5 go out between oil pocket 15 and the left oil back chamber 17 on four guiding valve left sides has four sliding valve hole compensating grooves 5.1.Corresponding four sliding valve hole compensating grooves 5.1 have four uniform guiding valve compensating grooves 10.1 on the cylinder of described four guiding valves 10.Described four guiding valve compensating grooves 10.1 are the cellular type compensating groove.
The working procedure of this programme is: when three guiding valves 8 and four guiding valves 10 all are failure to actuate, when being in position shown in the accompanying drawing 4, three guiding valves 8 go out oil pocket 20 and three left chambeies 2.1 of guiding valve oil-feed and left oil back chamber 17 with three guiding valve left sides and separate, three guiding valve right sides are gone out oil pocket 6 and three right chambeies 2.2 of guiding valve oil-feed and right oil back chamber 9 to be separated, four guiding valves 10 go out oil pocket 15 and four guiding valve oil suction chambers 14 and left oil back chamber 17 with four guiding valve left sides and separate, four guiding valve right sides are gone out oil pocket 11 to be separated with the right chamber 12.2 of two-stage oil feeding and right oil back chamber 9, this moment, fluid entered oil suction chamber 4 by filler opening 3, the left chamber 4.1 of divergent oil inlet again, the right chamber 4.2 of oil-feed enters two-stage oil feeding chamber 12 by three guiding valves 8, by the left chamber 12.1 of two-stage oil feeding, the right chamber 12.2 of two-stage oil feeding is flowed back to fuel tank by oil back chamber 13 by oil outlet 31 again by four guiding valves 10 again.
When three guiding valves 8 are moved to the left, four guiding valves 10 are failure to actuate, and this moment, three guiding valves 8 went out oil pocket 20 with three guiding valve left sides and three left chambeies 2.1 of guiding valve oil-feed separate, and three guiding valve right sides are gone out oil pocket 6 be communicated with three right chambeies 2.2 of guiding valve oil-feed; Simultaneously three guiding valve left sides are gone out oil pocket 20 and be communicated with left oil back chamber 17, the left chamber 2.1 of oil-feed and the right chamber 2.2 of oil-feed are separated with two-stage oil feeding chamber 12; This moment, fluid entered oil suction chamber 4 by filler opening 3, push three guiding valve one-way valves 22 open, enter three guiding valve oil suction chambers 2, three the right chambeies 2.2 of guiding valve oil-feed of flowing through enter three guiding valve right sides by three guiding valves 8 and go out oil pocket 6, flow out by three right oil inlet and outlets 28 of guiding valve at last; Another road binders liquid goes out oil pocket 20, three left oil back chambers 17 of guiding valves 8 inflows by three left oil inlet and outlets 29 of guiding valve by three guiding valve left sides simultaneously, flows back to fuel tank by oil back chamber 13 by oil outlet 31 more at last.
When three guiding valves 8 move right, four guiding valves 10 are failure to actuate, and this moment, three guiding valves 8 went out oil pocket 6 with three guiding valve right sides and three right chambeies 2.2 of guiding valve oil-feed separate, and three guiding valve left sides are gone out oil pocket 20 be communicated with three left chambeies 2.1 of guiding valve oil-feed; Simultaneously three guiding valve right sides are gone out oil pocket 6 and be communicated with right oil back chamber 9, the left chamber 4.1 of oil-feed and the right chamber 4.2 of oil-feed are separated with two-stage oil feeding chamber 12; This moment, fluid entered oil suction chamber 4 by filler opening 3, push three guiding valve one-way valves 22 open, enter three guiding valve oil suction chambers 2, three the left chambeies 2.1 of guiding valve oil-feed of flowing through enter three guiding valve left sides by three guiding valves 8 and go out oil pocket 20, flow out by three left oil inlet and outlets 29 of guiding valve at last; Another road binders liquid goes out oil pocket 6, three right oil back chambers 9 of guiding valves 8 inflows by three right oil inlet and outlets 28 of guiding valve by three guiding valve right sides simultaneously, flows back to fuel tank by oil back chamber 13 by oil outlet 31 more at last.
When four guiding valves 10 are moved to the left a position, three guiding valves 8 are failure to actuate, and four guiding valves 10 went out oil pocket 11 with four guiding valve right sides and cut off with right oil back chamber 9 this moment, the right chamber 12.2 of two-stage oil feeding is gone out oil pocket 11 with four guiding valve right sides be communicated with; Simultaneously four guiding valve left sides being gone out oil pocket 15 is communicated with left oil back chamber 17, four guiding valve oil suction chambers 14 and four guiding valve left sides are gone out oil pocket 15 partitions, this moment, fluid entered oil suction chamber 4 by filler opening 3, the again left chamber 4.1 of divergent oil inlet, the right chamber 4.2 of oil-feed, enter two-stage oil feeding chamber 12 by three guiding valves 8, by the right chamber 12.2 of two-stage oil feeding, enter four guiding valve right sides by four guiding valves 10 again and go out oil pocket 11, flow out by four right oil inlet and outlets 24 of guiding valve at last; Another road binders liquid goes out oil pocket 15, four left oil back chambers 17 of guiding valves 10 inflows by four left oil inlet and outlets 25 of guiding valve by four guiding valve left sides simultaneously, flows back to fuel tank by oil back chamber 13 by oil outlet 31 more at last.
When four guiding valves 10 are moved to the left two positions, three guiding valves 8 still are failure to actuate, and four guiding valves 10 went out oil pocket 11 with four guiding valve right sides and were communicated with the right chamber 12.2 of two-stage oil feeding this moment, and the left chamber 12.1 of two-stage oil feeding is communicated with oil back chamber 13; Simultaneously four guiding valve left sides are gone out oil pocket 15 and be communicated with left oil back chamber 17, this moment, fluid can flow between four left oil inlet and outlets 25 of guiding valve, four the right oil inlet and outlets 24 of guiding valve, oil outlet 31 and filler openings 3 as required mutually.
When four guiding valves 10 position that moves right, three guiding valves 8 are failure to actuate, and four guiding valves 10 went out oil pocket 15 with four guiding valve left sides and cut off with left oil back chamber 17 this moment, four guiding valve oil suction chambers 14 are gone out oil pocket 15 with four guiding valve left sides be communicated with; Simultaneously four guiding valve right sides being gone out oil pocket 11 is communicated with right oil back chamber 9, the right chamber 12.2 of two-stage oil feeding and four guiding valve right sides are gone out oil pocket 11 partitions, this moment, fluid entered oil suction chamber 4 by filler opening 3, the again left chamber 4.1 of divergent oil inlet, the right chamber 4.2 of oil-feed, enter two-stage oil feeding chamber 12 by three guiding valves 8, by the left chamber 12.1 of two-stage oil feeding, push four guiding valve one-way valves 30 open and enter four guiding valve oil suction chambers 14, enter four guiding valve left sides by four guiding valves 10 again and go out oil pocket 15, flow out by four left oil inlet and outlets 25 of guiding valve at last; Another road binders liquid goes out oil pocket 11, four right oil back chambers 9 of guiding valves 10 inflows by four right oil inlet and outlets 24 of guiding valve by four guiding valve right sides simultaneously, flows back to fuel tank by oil back chamber 13 by oil outlet 31 more at last.
Claims (7)
1. an integral manual multi-path reversing valve includes valve body, has filler opening to communicate with oil suction chamber at valve body, has oil outlet to communicate with oil back chamber, and described oil suction chamber is communicated with the left chamber of oil-feed and the right chamber of oil-feed, and described oil back chamber is communicated with left oil back chamber and right oil back chamber; In described valve body, transversely be furnished with down axis parallel three sliding valve holes and four sliding valve holes, in described three sliding valve holes, three guiding valves are housed, one end of these three guiding valves stretches out valve body, the other end connects three guiding valves and decides resetting-mechanism, in described four sliding valve holes, four guiding valves are housed, one end of these four guiding valves stretches out valve body, and the other end connects four guiding valve positioning meanss; On described valve body, corresponding three guiding valves have three left oil inlet and outlets of guiding valve and three right oil inlet and outlets of guiding valve, and corresponding four guiding valves have four left oil inlet and outlets of guiding valve and four right oil inlet and outlets of guiding valve; In addition, safety valve, three guiding valve one-way valves and four guiding valve one-way valves also are housed on described valve body, it is characterized in that: described three sliding valve holes and left oil back chamber, three guiding valve left sides go out oil pocket, three left chambeies of guiding valve oil-feed, the left chamber of oil-feed, two-stage oil feeding chamber, the right chamber of oil-feed, three right chambeies of guiding valve oil-feed, three guiding valve right sides go out oil pocket and right oil back chamber is communicated with; Described four sliding valve holes and left oil back chamber, four guiding valve left sides go out oil pocket, four guiding valve oil suction chambers, the left chamber of two-stage oil feeding, oil back chamber, the right chamber of two-stage oil feeding, four guiding valve right sides go out oil pocket and right oil back chamber is communicated with; Described two-stage oil feeding chamber is communicated with the left chamber of oil-feed and the right chamber of oil-feed at three sliding valve holes, and this two-stage oil feeding chamber is communicated with again the left chamber of two-stage oil feeding and the right chamber of two-stage oil feeding; The left oil inlet and outlet of described three guiding valves is communicated with three guiding valve left sides and goes out oil pocket, and the right oil inlet and outlet of described three guiding valves is communicated with three guiding valve right sides and goes out oil pocket; The left oil inlet and outlet of described four guiding valves is communicated with four guiding valve left sides and goes out oil pocket, and the right oil inlet and outlet of described four guiding valves is communicated with four guiding valve right sides and goes out oil pocket; Go out to be provided with between the oil pocket three guiding valve Fill valves at right oil back chamber and three guiding valve right sides, control right oil back chamber and three guiding valve right sides and go out unilaterally connected between the oil pocket; Go out to be provided with between the oil pocket four guiding valve Fill valves at right oil back chamber and four guiding valve right sides, control right oil back chamber and four guiding valve right sides and go out unilaterally connected between the oil pocket; In described valve body, also be integrated with left overload valve and right overload valve, described left overload valve oil inlet end goes out oil pocket with three guiding valve left sides and is communicated with, the flow-off end is communicated with left oil back chamber, and described right overload valve oil inlet end goes out oil pocket with three guiding valve right sides and is communicated with, and the flow-off end is communicated with right oil back chamber.
2. multiple directional control valve according to claim 1 is characterized in that: described three guiding valve one-way valves between oil suction chamber and three guiding valve oil suction chambers, the unilaterally connected between control oil suction chamber and three the guiding valve oil suction chambers.
3. multiple directional control valve according to claim 1 is characterized in that: described four guiding valve one-way valves between two-stage oil feeding chamber and four guiding valve oil suction chambers, the unilaterally connected between control two-stage oil feeding chamber and four the guiding valve oil suction chambers.
4. multiple directional control valve according to claim 1, it is characterized in that: the oil inlet end of described safety valve is communicated with oil suction chamber, and the flow-off end is communicated with left oil back chamber.
5. multiple directional control valve according to claim 1, it is characterized in that: the valve body that described four sliding valve holes go out between oil pocket and the left oil back chamber on four guiding valve left sides has four sliding valve hole compensating grooves.
6. multiple directional control valve according to claim 5 is characterized in that: corresponding four sliding valve hole compensating grooves have four uniform guiding valve compensating grooves on the cylinder of described four guiding valves.
7. multiple directional control valve according to claim 6, it is characterized in that: described four guiding valve compensating grooves are the cellular type compensating groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010617838 CN102022394B (en) | 2010-12-31 | 2010-12-31 | Integral manual multi-way reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010617838 CN102022394B (en) | 2010-12-31 | 2010-12-31 | Integral manual multi-way reversing valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102022394A CN102022394A (en) | 2011-04-20 |
| CN102022394B true CN102022394B (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010617838 Active CN102022394B (en) | 2010-12-31 | 2010-12-31 | Integral manual multi-way reversing valve |
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| CN (1) | CN102022394B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1468184A (en) * | 1973-04-12 | 1977-03-23 | Australian Iron Steel Pty Ltd | Multi-functional fluid control valve assembly |
| US4262554A (en) * | 1978-08-18 | 1981-04-21 | S.R.M. Hydromekanik Aktiebolag | Hydraulic valve system for controlling particularly a vehicle gearbox |
| CN1295440C (en) * | 2004-03-08 | 2007-01-17 | 尚继良 | Integrated manual multiple directional control valve for lader |
| CN101592171B (en) * | 2009-06-19 | 2011-07-27 | 济南液压泵有限责任公司 | Integral manual multi-path reversing valve |
| CN201916269U (en) * | 2010-12-31 | 2011-08-03 | 济南液压泵有限责任公司 | Integral manual multi-way change valve |
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2010
- 2010-12-31 CN CN 201010617838 patent/CN102022394B/en active Active
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| Publication number | Publication date |
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| CN102022394A (en) | 2011-04-20 |
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