CN201650912U - Hydraulic multichannel reversing valve - Google Patents
Hydraulic multichannel reversing valve Download PDFInfo
- Publication number
- CN201650912U CN201650912U CN2010201996233U CN201020199623U CN201650912U CN 201650912 U CN201650912 U CN 201650912U CN 2010201996233 U CN2010201996233 U CN 2010201996233U CN 201020199623 U CN201020199623 U CN 201020199623U CN 201650912 U CN201650912 U CN 201650912U
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- valve
- valve rod
- way
- hydraulic multichannel
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Abstract
The utility model discloses a hydraulic multichannel reversing valve which comprises a valve body, wherein an oil inlet channel, an oil return channel, an oil compensation one-way valve, an overload safety valve, a main safety valve, a one-way valve and two paths of reversing valves are arranged in the valve body. The utility model well solves the problems of reversing impact and oil trapping in the reversing process, has small manipulation force in the reversing process of a valve rod, favorable micromotion property and good oil compensation effect, effectively prevents air suction phenomenon from generating, ensures the design flow of the valve and reduces the pressure loss.
Description
Technical field
The utility model relates to a kind of E32 type integral multi-way reversing valve, is that a kind of hydraulic system that is used for realizes the central controlled multiple directional control valve of a plurality of mechanisms, belongs to field of mechanical technique.
Background technique
With the highly pressurised liquid is the manipulation and the control of the mechanical device of power, normally realizes by the hydraulic multichannel conversion valve that is installed on the mechanical device.
The valve rod major part of the multiple directional control valve of present 32 latus rectums all is hollow, design has one-way valve in the valve rod, valve rod is subjected to easy deformation behind the high pressure, frictional force is very big during the commutation of valve rod and valve opening, produces the high pressure chucking, handles very painstaking when causing the valve rod commutation, reversing impact is big, the commutation fretting performance is poor, and the repairing weak effect, emptying phenomenon often occurs.
The model utility content
Problem to be solved in the utility model provides a kind of hydraulic multichannel conversion valve, pocketed oil problem when can be good at solving reversing impact and commutation, and steering force is light during the valve rod commutation, and the fine motion characteristic is good.
For addressing the above problem, the utility model by the following technical solutions:
A kind of hydraulic multichannel conversion valve comprises valve body, is provided with oil inlet passage and drainback passage in the described valve body, it is characterized in that: be provided with repairing one-way valve, overload relief valve, main safety valve, one-way valve and two way reversing valves in the described valve body.
Below be the utility model for further improvement of these options:
Be arranged in parallel by oil inlet passage and drainback passage between described two way reversing valves.
Further improve:
Oil inlet passage is provided with filler opening, and drainback passage is provided with return opening, and described repairing one-way valve is communicated with drainback passage.
Being provided with of repairing one-way valve improved the repairing effect, effectively prevents the generation of emptying phenomenon.
Further improve:
A described wherein way reversing valve is spring reset formula " 3-position 4-way " selector valve, and another way reversing valve is steel ball locate mode " four a four-ways " selector valve.
Further improve:
Described spring reset formula " 3-position 4-way " selector valve comprises solid O type valve rod, and O type valve rod is provided with the balance oil groove and the He groove is let out in fine motion.
The setting of He groove is let out in balance oil groove and fine motion, pocketed oil problem when well having solved reversing impact and commutation, and steering force is light during the valve rod commutation, and the fine motion characteristic is good.
Further improve: position corresponding with the left part of O type valve rod on the described valve body is provided with the tipping bucket end cap, is provided with resetting-mechanism between the left part of tipping bucket end cap and O type valve rod.
Further improve:
Described resetting-mechanism comprises the limited post that is arranged in the tipping bucket end cap, is provided with spring seat between the end of limited post and O type valve rod, is provided with Returnning spring in the outside of spring seat.
The another kind of improvement:
Steel ball locate mode " four four-ways " selector valve comprises solid Q type valve rod, and Q type valve rod is provided with the balance oil groove and the He groove is let out in fine motion.
Further improve:
Position corresponding with the left part of Q type valve rod on the described valve body is provided with the swing arm end cap, is provided with positioning device between the left part of swing arm end cap and Q type valve rod.
Further improve:
Described positioning device comprises the setting sleeve that is installed in the swing arm end cap, on setting sleeve, be provided with the locating slot of several layers annular, end at Q type valve rod is connected with locating column, on locating column, laterally be provided with a through hole, in through hole, be provided with retaining spring, the position that is positioned at the two ends of retaining spring in the described through hole is provided with steel ball, and described steel ball matches with locating slot.
The utility model adopts such scheme, be mainly used in ZL30, ZL50, ZL60 loader hydraulic work system, this valve is an armstrong's patent formula maneuverability pattern, by changing O type valve rod and Q type valve rod axial position at valve body, being switched on or switched off of control valve rod oil groove and valve body oil groove, change the liquid flow path direction of oil circuit, realize the centralized control of a plurality of mechanisms.
Fluid flow backwards when one-way valve can prevent in the work the flame-out suddenly or valve rod commutation of motor, shows as anti-stopper lever and fall suddenly in complete machine, played the safety protection effect, and the effect of overload relief valve is the forearm oil cylinder of protection complete machine.
Pocketed oil problem when the utility model has well solved reversing impact and commutation, steering force is light during the valve rod commutation, the fine motion characteristic is good, repairing is effective, effectively prevent the generation of emptying phenomenon, one-way valve designs has guaranteed the design discharge of valve on valve body, reduce the pressure loss, this valve is more energy-conservation than old-fashioned DF type hydrovalve.
The utility model is described in further detail below in conjunction with drawings and Examples:
Description of drawings
Accompanying drawing 1 is the structural representation of multi-way valve among the utility model embodiment;
A-A in accompanying drawing 2 accompanying drawings 1 is to sectional view;
Accompanying drawing 3 is the structure diagram of multi-way valve among the utility model embodiment.
Among the figure: the 1-valve body; 2-O type valve rod; 3-tipping bucket end cap; The 4-spring seat; The 5-limited post; The 6-Returnning spring; 7-Q type valve rod; 8-swing arm end cap; The 9-setting sleeve; The 10-locating column; The 11-retaining spring; The 12-valve pocket; The unidirectional valve gap of 13-; The 14-check valve spring; The 15-one-way valve; 16-repairing one-way valve; 17-repairing valve gap; 18-tipping bucket front pressuring plate; The 19-oil inlet passage; The 19B-drainback passage; 20-swing arm front pressuring plate; The 21-locating slot; 22-steel ball 23-dust ring; Stop up among the 24-; 25-fine motion compensating groove; 26-balance oil groove; The big obstruction of 27-; The little obstruction of 28-; The 29-bearing pin; The 30-overload relief valve; The 31-main safety valve; A1, A2, B1, B2-hydraulic fluid port; The P-filler opening; The T-return opening; A-excavates the position; The neutral position of b-; The c-position of leaning forward; D-lifting position; E-descend the position; The f-floating bit.
Embodiment
Embodiment, as shown in Figure 1, a kind of hydraulic multichannel conversion valve that is mainly used in ZL30, ZL50, ZL60 loader and large-scale fork truck hydraulic work system, comprise valve body 1, be provided with oil inlet passage 19 and drainback passage 19B in the described valve body 1, oil inlet passage 19 is provided with oil inlet P, and drainback passage 19B is provided with oil return inlet T, described valve body 1 is provided with the big obstruction 27 that is used to stop up oil return inlet T, obstruction 24 and little obstruction 28 during valve body 1 also is provided with.
Be provided with two way reversing valves in the valve body, be arranged in parallel by oil inlet passage 19 and drainback passage 19B between two way reversing valves.
Wherein a way reversing valve is spring reset formula " 3-position 4-way " selector valve, realizes " excavation ", " neutrality ", " tipping bucket " function of forearm on complete machine.
This selector valve comprises solid O type valve rod 2, and O type valve rod is provided with the special-shaped fine motion of balance oil groove 26 and 10 places of the annular that 36 place's axial spacings do not divide equally and lets out He groove 25.
Position corresponding with O type valve rod 2 in the valve body 1 is provided with hydraulic fluid port A1 and hydraulic fluid port B1.
Another way reversing valve is steel ball locate mode " four a four-ways " selector valve, realizes " rising ", " neutrality ", " decline ", " floating " function of big arm on complete machine.
This selector valve comprises solid Q type valve rod 7, and Q type valve rod 7 is provided with the special-shaped fine motion of annular balance oil groove 26 and 12 places that 36 place's axial spacings do not divide equally and lets out He groove 25.
Position corresponding with Q type valve rod 2 in the valve body 1 is provided with hydraulic fluid port A2 and hydraulic fluid port B2.
Pocketed oil problem when being provided with of He groove 25 is good to have solved reversing impact and commutation is let out in balance oil groove 26 and fine motion, and steering force is light during the valve rod commutation, and the fine motion characteristic is good.
After O type valve rod 2 and 7 slips of Q type valve rod, can make oil inlet passage 19 and drainback passage 19B be in conducting or closing state.
Position corresponding with the left end of O type valve rod 2 on the described valve body 1 is provided with tipping bucket end cap 3, between the end of tipping bucket end cap 3 and O type valve rod 2, be provided with resetting-mechanism, this resetting-mechanism comprises the limited post 5 that is arranged in the tipping bucket end cap 3, between the end of limited post 5 and O type valve rod 2, be provided with spring seat 4, be provided with Returnning spring 6 in the outside of spring seat 4, the right-hand member of described O type valve rod 2 reaches the outside of valve body 1 and is connected with bearing pin 29, is tightly connected by tipping bucket front pressuring plate 18 and dust ring 23 between the right-hand member of O type valve rod 2 and the valve body 1.
Position corresponding with the left part of Q type valve rod 7 on the described valve body 1 is provided with swing arm end cap 8, between the left part of swing arm end cap 8 and Q type valve rod 7, be provided with positioning device, this positioning device comprises the setting sleeve 9 that is installed in the swing arm end cap 8, on setting sleeve 9, be provided with the locating slot 21 of several layers annular, end at Q type valve rod 7 is connected with locating column 10, on locating column 10, laterally be provided with a through hole, in through hole, be provided with retaining spring 11, the position that is positioned at the two ends of retaining spring 11 in the described through hole is provided with steel ball 22, and described steel ball 22 and locating slot 21 are to cooperating.
Be tightly connected by valve pocket 12 between the left end of described Q type valve rod 7 and the valve body 1, the right-hand member of described Q type valve rod 7 reaches the outside of valve body 1 and is connected with bearing pin 29, is tightly connected by swing arm front pressuring plate 20 and dust ring 23 between the right-hand member of O type valve rod 7 and the valve body 1.
Described valve body 1 is provided with the main safety valve 31 that is communicated with oil inlet passage 19 and drainback passage 19B.
Be provided with repairing one-way valve 16 in the described valve body 1, repairing one-way valve 16 is fixing by repairing valve gap 17, and described repairing one-way valve 16 is communicated with hydraulic fluid port B1.
When O type valve rod is got to when leaning forward working position, because of scraper bowl deadweight reason leans forward fast, oil cylinder stretches out hydraulic fluid port B1 fast and forms negative pressure, and hydraulic oil overcame repairing check valve spring power and entered hydraulic fluid port B1 this moment, realized the repairing function.
As shown in Figure 2, be provided with one-way valve 15 in the front side of valve body 1, on one-way valve 15, be provided with unidirectional valve gap 13, be provided with check valve spring 14 between the valve seat of described unidirectional valve gap 13 and one-way valve 15, fluid flow backwards when one-way valve can prevent in the work the flame-out suddenly or valve rod commutation of motor, in complete machine, show as anti-stopper lever and fall suddenly, play the safety protection effect.
Be provided with overload relief valve 30 on valve body 1, its effect is the forearm oil cylinder of protection complete machine.
As shown in Figure 3:
When one, O type valve rod 2 was in neutral b simultaneously with Q type valve rod 7, system's fluid was directly got back to oil return inlet T through oil inlet passage 19 with drainback passage 19B by oil inlet P, and system is in unloading condition;
When two, Q type valve rod 7 is in neutral b:
1, O type valve rod 2 is in when leaning forward c, high-voltage oil liquid by oil inlet P through oil inlet passage 19 and one-way valve to hydraulic fluid port B1, fluid is got back to oil return inlet T through drainback passage 19B among the hydraulic fluid port A1, fluid promotes the forearm oil cylinder realization machinery action that leans forward through hydraulic fluid port A1, hydraulic fluid port B1;
2, O type valve rod is in when excavating position a, high-voltage oil liquid by oil inlet P through oil inlet passage 19 and one-way valve to hydraulic fluid port A1, fluid is got back to oil return inlet T through drainback passage 19B oil duct among the hydraulic fluid port B1, and fluid promotes the forearm oil cylinder through hydraulic fluid port A1, hydraulic fluid port B1 and realizes the excavation machinery action;
Three, O type valve rod is in neutral position b:
When 1, Q type valve rod is in lifting position d, high-voltage oil liquid by oil inlet P through oil inlet passage 19 and one-way valve to hydraulic fluid port A2, the fluid among the hydraulic fluid port B2 is got back to oil return inlet T through drainback passage 19B, fluid promotes boom cylinder realization lifting machinery action through hydraulic fluid port A2, hydraulic fluid port B2;
2, Q type valve rod is in when descending position e, high-voltage oil liquid by oil inlet P through oil inlet passage 19 and one-way valve to the B2 hydraulic fluid port, fluid is got back to oil return inlet T through drainback passage 19B among the hydraulic fluid port A2, fluid promotes boom cylinder realization decline machinery action through hydraulic fluid port B2, hydraulic fluid port A2;
When 3, Q type valve rod is in floating bit f, high-voltage oil liquid by oil inlet P through oil inlet passage 19 and one-way valve to hydraulic fluid port A2, hydraulic fluid port B2, fluid promotes boom cylinder through hydraulic fluid port A2, hydraulic fluid port B2 and realizes unsteady machinery action.
Claims (10)
1. hydraulic multichannel conversion valve, comprise valve body (1), be provided with oil inlet passage (19) and drainback passage (19B) in the described valve body (1), it is characterized in that: be provided with repairing one-way valve (16), overload relief valve (30), main safety valve (31), one-way valve (15) and two way reversing valves in the described valve body.
2. a kind of hydraulic multichannel conversion valve according to claim 1 is characterized in that: be arranged in parallel by oil inlet passage (19) and drainback passage (19B) between described two way reversing valves.
3. a kind of hydraulic multichannel conversion valve according to claim 2 is characterized in that: oil inlet passage (19) is provided with filler opening (P), and drainback passage (19B) is provided with return opening (T), and described repairing one-way valve (16) is communicated with drainback passage (19B).
4. a kind of hydraulic multichannel conversion valve according to claim 1 is characterized in that: a described wherein way reversing valve is spring reset formula " 3-position 4-way " selector valve, and another way reversing valve is steel ball locate mode " four a four-ways " selector valve.
5. a kind of hydraulic multichannel conversion valve according to claim 4 is characterized in that: described spring reset formula " 3-position 4-way " selector valve comprises solid O type valve rod (2), and O type valve rod is provided with balance oil groove (26) and He groove (25) is let out in fine motion.
6. a kind of hydraulic multichannel conversion valve according to claim 5, it is characterized in that: described valve body (1) is gone up the position corresponding with the left part of O type valve rod (2) and is provided with tipping bucket end cap (3), is provided with resetting-mechanism between the left part of tipping bucket end cap (3) and O type valve rod (2).
7. a kind of hydraulic multichannel conversion valve according to claim 6, it is characterized in that: described resetting-mechanism comprises the limited post (5) that is arranged in the tipping bucket end cap (3), between the end of limited post (5) and O type valve rod (2), be provided with spring seat (4), be provided with Returnning spring (6) in the outside of spring seat (4).
8. a kind of hydraulic multichannel conversion valve according to claim 4 is characterized in that: steel ball locate mode " four four-ways " selector valve comprises solid Q type valve rod (7), and Q type valve rod (7) is provided with balance oil groove (26) and He groove (25) is let out in fine motion.
9. a kind of hydraulic multichannel conversion valve according to claim 8, it is characterized in that: described valve body (1) is gone up the position corresponding with the left part of Q type valve rod (7) and is provided with swing arm end cap (8), is provided with positioning device between the left part of swing arm end cap (8) and Q type valve rod (7).
10. a kind of hydraulic multichannel conversion valve according to claim 9, it is characterized in that: described positioning device comprises the setting sleeve (9) that is installed in the swing arm end cap (8), on setting sleeve (9), be provided with the locating slot (21) of several layers annular, be connected with locating column (10) in the end of Q type valve rod (7), on locating column (10), laterally be provided with a through hole, in through hole, be provided with retaining spring (11), the position that is positioned at the two ends of retaining spring (11) in the described through hole is provided with steel ball (38), and described steel ball (38) matches with locating slot (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201996233U CN201650912U (en) | 2010-05-24 | 2010-05-24 | Hydraulic multichannel reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201996233U CN201650912U (en) | 2010-05-24 | 2010-05-24 | Hydraulic multichannel reversing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201650912U true CN201650912U (en) | 2010-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201996233U Expired - Fee Related CN201650912U (en) | 2010-05-24 | 2010-05-24 | Hydraulic multichannel reversing valve |
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| Country | Link |
|---|---|
| CN (1) | CN201650912U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865263A (en) * | 2012-09-11 | 2013-01-09 | 崔安生 | Master control multichannel conversion valve |
| CN111963506A (en) * | 2020-08-07 | 2020-11-20 | 太原理工大学 | Multi-way valve of double-valve-core crane capable of accurately controlling micro flow |
-
2010
- 2010-05-24 CN CN2010201996233U patent/CN201650912U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865263A (en) * | 2012-09-11 | 2013-01-09 | 崔安生 | Master control multichannel conversion valve |
| CN111963506A (en) * | 2020-08-07 | 2020-11-20 | 太原理工大学 | Multi-way valve of double-valve-core crane capable of accurately controlling micro flow |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20150524 |
|
| EXPY | Termination of patent right or utility model |