CN104214155A - Integral type multi-way valve provided with integral type hydraulic locks - Google Patents
Integral type multi-way valve provided with integral type hydraulic locks Download PDFInfo
- Publication number
- CN104214155A CN104214155A CN201410410297.9A CN201410410297A CN104214155A CN 104214155 A CN104214155 A CN 104214155A CN 201410410297 A CN201410410297 A CN 201410410297A CN 104214155 A CN104214155 A CN 104214155A
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- Prior art keywords
- valve
- locking
- valve block
- oil
- integral
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lift Valve (AREA)
- Valve Housings (AREA)
Abstract
The invention discloses an integral type multi-way valve provided with integral type hydraulic locks. The integral type multi-way valve comprises an oil inlet valve plate, a plurality of operating valve plates and an oil return valve plate, wherein the operating valve plates are arranged between the oil inlet valve plate and the oil return valve plate; the oil inlet valve plate, the operating valve plates and the oil return valve plate are of integral type structures; an oil inlet port P is formed in the oil inlet valve plate, and an oil return port T is formed in the oil return valve plate; one or two operating oil ports are formed in each operating valve of the operating valve plates; a valve rod is inserted in each operating valve plate of the operating valve plates. An integral type hydraulic lock, a valve rod, a double-lock hydraulic control push rod and a rear plug are arranged in each operating valve plate; each integral type hydraulic lock comprises a steel lock valve seat, a lock valve element, a lock valve sleeve and a reset spring. The integral type multi-way valve provided with the integral type hydraulic locks disclosed by the invention has the advantages that the risk of oil leakage can be reduced, internal leakage is avoided, the operational reliability of the valve is improved, the processing technology is simplified, and the processing cost is reduced.
Description
Technical field
The present invention relates to a kind of multi-way valve, especially a kind of integral multitandem valve being provided with integral hydraulic lock.
Background technique
Results are links that in agricultural production process, seasonality is strong, the amount of labour used is many, labor intensity is larger.In production practices, results are usually tightly connected with the sowing of next batch of crop again.Peasant's conventional " rush-harvesting and rush-planting " likens the pressing degree of operation, and is linked together in it and high yield good harvest.Along with national economy, the particularly development of rural economy and agricultural productive force, the cry of peasant to rice and wheat harvester tool grows to even greater heights, and the function and significance of harvesting mechanization is just obtaining the understanding of more and more people.In harvest machinery industry, hydraulics obtains and applies more and more widely, the application percentage of hydraulic transmission is increasing, hydraulic operation has not been simply replace traditional pure mechanical transmission, and be the introduction of design principle and the structure of a series of advanced person, become the indivisible organic component of harvest machinery, make harvest machinery have good operating characteristics, agricultural technology requirement can be met preferably.Therefore this project market foreground is wide, has good social economic benefit.Harvest machinery was time point intensive work about month, and the reliability of machine determines time and the quality of results during this period.And hydraulic transmission is as important composition our department of machinery three large transmissions, playing a part more and more important.The reliability of hydraulic pressure is govern the development of the performance of complete machine, so design now hydraulic element more reliably, to main frame particularly harvest machinery have the effect of particular importance.
The integral multitandem valve that DLT series is provided with integral hydraulic lock is widely used on farm machinery, is mainly used for meeting the rise and fall of actuator and unidirectional locking.Pilot operated check valve is integrated in working body by this multi-way valve, compact structure, and operating life is high, decreases the layout of hydraulic system pipeline simultaneously.
At present, existing farm machinery multi-way valve, adopts split-type structural more.As shown in Figures 4 and 5, existing multi-way valve is made up of parts such as oil-feed valve block 1, multiple work valve block 2 and oil return valve blocks 3, between two adjacent valve blocks, seal ring 4 between sheet is adopted to seal, seal ring between needing multiple, therefore between sheet, the Hazard ratio of leakage of oil is comparatively large, and the functional reliability of multi-way valve is poor.Mode with bolts between valve block, is fastened as a whole described oil-feed valve block 1, multiple work valve block 2 and oil return valve block 3 by four clamping bolts 5.The multi-way valve of this split-type structural, need first by Split assembled, and then machining hole; Because valve body is when urgent, valve main aperture has the distortion of trace, causes valve rod to occur catching phenomenon when filling examination; So need separable assembled integrally after, need to revise the size of main aperture, ensure the flexibility of stem movement.
In existing multi-way valve, include Split type hydraulic lock, as shown in Figure 5.This Split type hydraulic locks the assembly limited location bar 19, steel ball 20, nylon seat 21 etc. that comprise.Because nylon seat material is softer, easily at surperficial card impurity, thus cause between steel ball and nylon seat, occurring poorly sealed phenomenon, let out in generation, thus have impact on the functional reliability of multi-way valve.
Summary of the invention
The present invention is for avoiding the deficiency that exists in above-mentioned prior art, provides a kind of integral multitandem valve being provided with integral hydraulic lock, to reduce the risk of leakage of oil, to improve the functional reliability of valve.
The present invention be technical solution problem by the following technical solutions.
Be provided with the integral multitandem valve of integral hydraulic lock, its structural feature is, comprises an oil-feed valve block, multiple work valve block and an oil return valve block; Described multiple work valve block is arranged between described oil-feed valve block and described oil return valve block; Described oil-feed valve block, multiple work valve block and oil return valve block are monolithic construction; Described oil-feed valve block is provided with oil inlet P, described oil return valve block is provided with oil return inlet T; Each work valve block of described multiple work valve block is provided with one or two actuator port; Be inserted with a valve rod within each work valve block of described multiple work valve block, one end of described valve rod stretches out in outside described work valve block;
Integral hydraulic lock, valve rod, twin-lock hydraulic control push rod and rear plug is provided with in shown work valve block; Be provided with valve pocket in described work valve block, described valve rod, twin-lock hydraulic control push rod, rear plug and integral hydraulic lock is all located within described valve pocket; Wherein, described integral hydraulic lock, twin-lock hydraulic control push rod and rear plug set gradually from left to right;
Shown integral hydraulic lock comprises steel locking-valve seat, locking-valve core, locking-valve cover and Returnning spring; The right-hand member of described steel locking-valve seat is provided with stepped shaft inner chamber, the left part of described locking-valve cover is inserted in the stepped shaft inner chamber of described steel locking-valve seat, the inside of described locking-valve cover is provided with locking-valve cover valve pocket, described locking-valve cover valve pocket is positioned at the left end of described locking-valve cover, described locking-valve core is arranged in described locking-valve cover valve pocket, the left side of the left end of described Returnning spring and the stepped shaft inner chamber of described steel locking-valve seat abuts against, and right-hand member and the described locking-valve core of described Returnning spring abut against.
The structural feature being provided with the integral multitandem valve of integral hydraulic lock of the present invention is also:
The outer circumferential face of described steel locking-valve seat is provided with annular groove, is provided with seal ring in described annular groove.
The outer circumferential face of described locking-valve cover is equipped with annular groove, in described annular groove, is provided with seal ring.
Described seal ring all adopts rubber seal.
Compared with the prior art, beneficial effect of the present invention is embodied in:
The integral multitandem valve being provided with integral hydraulic lock of the present invention, has following technological merit.
(1) oil-feed valve block, work valve block and oil return valve block are set to monolithic construction, global formation, decrease the risk of leakage of oil between sheet, improve the functional reliability of multi-way valve.
(2) without the need to punching on valve block, eliminating clamping bolt, simplifying processing technology, shorten the manufacture cycle.
(3) owing to adopting integral hydraulic lock to instead of Split type hydraulic lock, the valve seat of integral hydraulic lock adopts steel matter, locking-valve core adopts cone valve structure, and make locking-valve can not affect the seal of locking-valve because of the impurity in hydraulic oil for linear sealing, thus make multi-way valve have good stain resistance, avoid multi-way valve and occur internal leakage phenomenon.
The integral multitandem valve being provided with integral hydraulic lock of the present invention, have can reduce leakage of oil risk, avoid internal leakage, improve the functional reliability of valve, simplify processing technology, reduce the advantages such as processing cost.
Accompanying drawing explanation
Fig. 1 is the outline drawing being provided with the integral multitandem valve of integral hydraulic lock of the present invention.
Fig. 2 is the sectional view of the A-A of Fig. 1.
Fig. 3 is the sectional view being provided with the integral hydraulic lock of the integral multitandem valve of integral hydraulic lock of the present invention.
Fig. 4 is the structural drawing of the Split multi-way valve of prior art.
Fig. 5 is the sectional view of the B-B of Fig. 4.
Label in accompanying drawing 1 ~ accompanying drawing 5: 1 oil-feed valve block, 2 work valve blocks, 3 oil return valve blocks, sealing gasket between 4,5 clamping bolts, 6 oil inlet P, 7 actuator ports, 8 oil return inlet T, 9 valve rods, 10 integral hydraulic locks, 11 twin-lock hydraulic control push rods, plug after 12,13 valve pockets, 14 steel locking-valve seats, 15 locking-valve cores, 16 locking-valve covers, 17 Returnning springs, 18 seal rings, 19 position-limited levers, 20 steel balls, 21 nylon seats.
Below by way of embodiment, and the invention will be further described by reference to the accompanying drawings.
Embodiment
See accompanying drawing 1-3, the integral multitandem valve being provided with integral hydraulic lock of the present invention, comprises an oil-feed valve block 1, multiple work valve block 2 and an oil return valve block 3; Described multiple work valve block 2 is arranged between described oil-feed valve block 1 and described oil return valve block 3; Described oil-feed valve block 1, multiple work valve block 2 and oil return valve block 3 are monolithic construction; Described oil-feed valve block 1 is provided with oil inlet P 6, described oil return valve block 3 is provided with oil return inlet T 8; Each work valve block 2 of described multiple work valve block 2 is provided with one or two actuator port 7; Be inserted with a valve rod 9 within each work valve block 2 of described multiple work valve block 2, one end of described valve rod 9 stretches out in outside described work valve block 2;
Integral hydraulic lock 10, valve rod 9, twin-lock hydraulic control push rod 11 and rear plug 12 is provided with in shown work valve block 2; Be provided with valve pocket 13 in described work valve block 2, described valve rod 9, twin-lock hydraulic control push rod 11, rear plug 12 and integral hydraulic lock 10 is all located within described valve pocket 13; Wherein, described integral hydraulic lock 10, twin-lock hydraulic control push rod 11 and rear plug 12 set gradually from left to right;
Shown integral hydraulic lock 10 comprises steel locking-valve seat 14, locking-valve core 15, locking-valve cover 16 and Returnning spring 17; The right-hand member of described steel locking-valve seat 14 is provided with stepped shaft inner chamber, the left part of described locking-valve cover 16 is inserted in the stepped shaft inner chamber of described steel locking-valve seat 14, the inside of described locking-valve cover 16 is provided with locking-valve cover valve pocket, described locking-valve cover valve pocket is positioned at the left end of described locking-valve cover 16, described locking-valve core 15 is arranged in described locking-valve cover valve pocket, the left side of the left end of described Returnning spring 17 and the stepped shaft inner chamber of described steel locking-valve seat 14 abuts against, and right-hand member and the described locking-valve core 15 of described Returnning spring 17 abut against.
As Fig. 1, this multi-way valve is set to monolithic construction, and oil-feed valve block, multiple work valve block and oil return valve block have made an entirety.Do not need to combine one by one, do not need bolton yet, without the need to arranging seal ring between sheet in addition between valve block yet.Compare with existing Split multi-way valve, there is the advantage of the following aspects: (1) eliminates seal ring between sheet, saved cost, avoid the problem sealing between sheet and tightly do not cause leakage of oil simultaneously, improve the functional reliability of multi-way valve; (2) without the need to punching on valve block, eliminating clamping bolt, simplifying processing technology, shorten the manufacture cycle.
Integral multitandem valve of the present invention is integrated type product, by No. five valve global formations, reduces the risk of leakage of oil between sheet.Technique decreases overall fraising technique simultaneously, greatly shorten the manufacture cycle.
The left end of described locking-valve core is provided with blind hole, and the right part of described Returnning spring to be inserted within described blind hole from the left end of described locking-valve core and abutted against with the right side of described blind hole.The outer circumferential face of the right part of described locking-valve core is taper.The face of matching with described locking-valve cover due to locking-valve core is cylindrical surface, locking-valve core can be moved neatly in locking-valve cover, improve the flexibility of multi-way valve.
Steel locking-valve seat, locking-valve core, locking-valve cover and Returnning spring that integral hydraulic is locked are the locking-valves of monolithic construction, be arranged between integral hydraulic lock actuator port and multichannel valve pocket, architomia formula hydraulic lock is instead of owing to adopting integral hydraulic lock, the valve seat of integral hydraulic lock adopts steel matter, locking-valve core adopts cone valve structure, and make locking-valve can not affect the seal of locking-valve because of the impurity in hydraulic oil for linear sealing, thus make multi-way valve have good stain resistance, avoid multi-way valve and occur internal leakage phenomenon.Integral hydraulic is locked, and material adopts 40Cr, heat treatment hardness (45 ~ 50) HRC.Not easily contaminated clamping stagnation, lets out in causing.And integrated type is relative to split type, be more prone in maintenance and fit on.
The outer circumferential face of described steel locking-valve seat 14 is provided with annular groove, is provided with seal ring 18 in described annular groove.
The outer circumferential face of described locking-valve cover 16 is equipped with annular groove, in described annular groove, is provided with seal ring 18.
Described seal ring 18 all adopts rubber seal.
Sealed by seal ring between plug-in type locking-valve and the inner chamber of valve body, improve the sealability of multi-way valve.
Steel locking-valve seat and locking-valve cover adopt fine thread to link together, and form an all-in-one-piece plug-in type locking-valve, by the connected sum disconnection between the positioning control actuator port of the spool of plug-in type locking-valve and valve pocket.Because plug-in type locking-valve is monolithic construction, by hexagonal hole on the left side of steel locking-valve seat from dismounting plug-in type locking-valve multi-way valve, make the maintenance maintenance of multi-way valve more convenient.The valve seat of plug-in type locking-valve adopts steel matter simultaneously, locking-valve core adopts cone valve structure, makes the sealing between locking-valve core and locking-valve cover not be subject to the impact of the impurity in hydraulic oil, has very strong antifouling property, good seal performance, solves the problem that multi-way valve in prior art easily leaks.
More than show and describe basic principle of the present invention, major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; the just principle of the present invention described in above-described embodiment and specification; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in claimed scope of the present invention.The protection domain of application claims is defined by appending claims and equivalent thereof.
Claims (4)
1. be provided with the integral multitandem valve of integral hydraulic lock, it is characterized in that, comprise an oil-feed valve block (1), multiple work valve block (2) and an oil return valve block (3); Described multiple work valve block (2) is arranged between described oil-feed valve block (1) and described oil return valve block (3); Described oil-feed valve block (1), multiple work valve block (2) and oil return valve block (3) are monolithic construction; Described oil-feed valve block (1) is provided with oil inlet P (6), described oil return valve block (3) is provided with oil return inlet T (8); Each work valve block (2) of described multiple work valve block (2) is provided with one or two actuator port (7); Be inserted with a valve rod (9) within each work valve block (2) of described multiple work valve block (2), one end of described valve rod (9) stretches out in outside described work valve block (2);
Integral hydraulic lock (10), valve rod (9), twin-lock hydraulic control push rod (11) and rear plug (12) is provided with in shown work valve block (2); Be provided with valve pocket (13) in described work valve block (2), described valve rod (9), twin-lock hydraulic control push rod (11), rear plug (12) and integral hydraulic lock (10) are all located within described valve pocket (13); Wherein, described integral hydraulic lock (10), twin-lock hydraulic control push rod (11) and rear plug (12) set gradually from left to right.
Shown integral hydraulic lock (10) comprises steel locking-valve seat (14), locking-valve core (15), locking-valve cover (16) and Returnning spring (17), the right-hand member of described steel locking-valve seat (14) is provided with stepped shaft inner chamber, the left part of described locking-valve cover (16) is inserted in the stepped shaft inner chamber of described steel locking-valve seat (14), the inside of described locking-valve cover (16) is provided with locking-valve cover valve pocket, described locking-valve cover valve pocket is positioned at the left end of described locking-valve cover (16), described locking-valve core (15) is arranged in described locking-valve cover valve pocket, the left side of the left end of described Returnning spring (17) and the stepped shaft inner chamber of described steel locking-valve seat (14) abuts against, right-hand member and the described locking-valve core (15) of described Returnning spring (17) abut against.
2. the integral multitandem valve being provided with integral hydraulic lock according to claim 1, it is characterized in that, the outer circumferential face of described steel valve seat (14) is provided with annular groove, is provided with seal ring (18) in described annular groove.
3. the integral multitandem valve being provided with integral hydraulic lock according to claim 1 and 2, is characterized in that, the outer circumferential face of described valve pocket (16) is equipped with annular groove, be provided with seal ring (18) in described annular groove.
4. the integral multitandem valve being provided with integral hydraulic lock according to claim 1 and 2, it is characterized in that, described seal ring (18) all adopts rubber seal.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410410297.9A CN104214155A (en) | 2014-08-19 | 2014-08-19 | Integral type multi-way valve provided with integral type hydraulic locks |
| CN201520053714.9U CN204403023U (en) | 2014-08-19 | 2015-01-26 | The resistant to pollution integral hydraulic lock of zero leakage |
| CN201510038703.8A CN104514764A (en) | 2014-08-19 | 2015-01-26 | Integral multi-way valve with zero-leakage pollution-resistant integral hydraulic locks |
| CN201510038680.0A CN104595269A (en) | 2014-08-19 | 2015-01-26 | Zero-leakage and anti-fouling integral hydraulic lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410410297.9A CN104214155A (en) | 2014-08-19 | 2014-08-19 | Integral type multi-way valve provided with integral type hydraulic locks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104214155A true CN104214155A (en) | 2014-12-17 |
Family
ID=52095964
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410410297.9A Pending CN104214155A (en) | 2014-08-19 | 2014-08-19 | Integral type multi-way valve provided with integral type hydraulic locks |
| CN201510038680.0A Pending CN104595269A (en) | 2014-08-19 | 2015-01-26 | Zero-leakage and anti-fouling integral hydraulic lock |
| CN201510038703.8A Pending CN104514764A (en) | 2014-08-19 | 2015-01-26 | Integral multi-way valve with zero-leakage pollution-resistant integral hydraulic locks |
| CN201520053714.9U Expired - Fee Related CN204403023U (en) | 2014-08-19 | 2015-01-26 | The resistant to pollution integral hydraulic lock of zero leakage |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510038680.0A Pending CN104595269A (en) | 2014-08-19 | 2015-01-26 | Zero-leakage and anti-fouling integral hydraulic lock |
| CN201510038703.8A Pending CN104514764A (en) | 2014-08-19 | 2015-01-26 | Integral multi-way valve with zero-leakage pollution-resistant integral hydraulic locks |
| CN201520053714.9U Expired - Fee Related CN204403023U (en) | 2014-08-19 | 2015-01-26 | The resistant to pollution integral hydraulic lock of zero leakage |
Country Status (1)
| Country | Link |
|---|---|
| CN (4) | CN104214155A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214155A (en) * | 2014-08-19 | 2014-12-17 | 合肥长源液压股份有限公司 | Integral type multi-way valve provided with integral type hydraulic locks |
| CN113941950B (en) * | 2020-06-30 | 2023-10-03 | 徐州徐工液压件有限公司 | Method and device for processing sheet type multi-way valve |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2019535A (en) * | 1978-03-10 | 1979-10-31 | B & G Hydraulics Ltd | Fluid Operated Valves |
| DE3909988C1 (en) * | 1989-03-25 | 1990-05-23 | O & K Orenstein & Koppel Ag, 1000 Berlin, De | |
| KR100291438B1 (en) * | 1996-08-08 | 2001-06-01 | 세구찌 류이찌 | Hydrulic control system |
| CN201539456U (en) * | 2009-10-29 | 2010-08-04 | 宁波市博尔法液压有限公司 | Step-down multi-way valve |
| CN102191944A (en) * | 2011-05-09 | 2011-09-21 | 巨隆集团芜湖兴隆液压有限公司 | Inserted medium flow upright post hydraulic control one-way valve |
| CN202072444U (en) * | 2011-05-13 | 2011-12-14 | 合肥长源液压股份有限公司 | Multi-way valve with functions of high pressure load-off, lifting self-lock and manual decline for forklift |
| CN202884029U (en) * | 2012-09-26 | 2013-04-17 | 太仓市明宇密封件有限公司 | Seal ring for shaft |
| CN203161693U (en) * | 2012-12-15 | 2013-08-28 | 深圳市神拓机电设备有限公司 | Hydraulic control one-way valve |
| CN203239667U (en) * | 2013-04-25 | 2013-10-16 | 宦治平 | Harvester overall multi-reversing valve |
| CN103438248A (en) * | 2013-08-30 | 2013-12-11 | 合肥长源液压股份有限公司 | Sheet-type multi-way valve |
| CN203421223U (en) * | 2013-08-30 | 2014-02-05 | 合肥长源液压股份有限公司 | Multi-way plate valve |
| CN104214155A (en) * | 2014-08-19 | 2014-12-17 | 合肥长源液压股份有限公司 | Integral type multi-way valve provided with integral type hydraulic locks |
| CN203978986U (en) * | 2014-08-19 | 2014-12-03 | 合肥长源液压股份有限公司 | Be provided with the integral multitandem valve of integral hydraulic lock |
-
2014
- 2014-08-19 CN CN201410410297.9A patent/CN104214155A/en active Pending
-
2015
- 2015-01-26 CN CN201510038680.0A patent/CN104595269A/en active Pending
- 2015-01-26 CN CN201510038703.8A patent/CN104514764A/en active Pending
- 2015-01-26 CN CN201520053714.9U patent/CN204403023U/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104595269A (en) | 2015-05-06 |
| CN204403023U (en) | 2015-06-17 |
| CN104514764A (en) | 2015-04-15 |
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| PB01 | Publication | ||
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Application publication date: 20141217 |