CN203978986U - Be provided with the integral multitandem valve of integral hydraulic lock - Google Patents
Be provided with the integral multitandem valve of integral hydraulic lock Download PDFInfo
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- CN203978986U CN203978986U CN201420470005.6U CN201420470005U CN203978986U CN 203978986 U CN203978986 U CN 203978986U CN 201420470005 U CN201420470005 U CN 201420470005U CN 203978986 U CN203978986 U CN 203978986U
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Abstract
The utility model discloses a kind of integral multitandem valve that is provided with integral hydraulic lock, comprise an oil-feed valve block, a plurality of work valve block and an oil return valve block; A plurality of work valve blocks are arranged between oil-feed valve block and oil return valve block; Oil-feed valve block, a plurality of work valve block and oil return valve block are monolithic construction; On oil-feed valve block, be provided with oil inlet P, on oil return valve block, be provided with oil return inlet T; On each work valve block of a plurality of work valve blocks, be provided with one or two actuator port; Within each work valve block of a plurality of work valve blocks, be inserted with a valve rod.In work valve block, be provided with integral hydraulic lock, valve rod, twin-lock hydraulic control push rod and rear plug; Integral hydraulic lock comprises steel locking-valve seat, locking-valve core, locking-valve cover and Returnning spring; The integral multitandem valve that is provided with integral hydraulic lock of the present utility model, have can reduce leakage of oil risk, avoid internal leakage, improve valve functional reliability, simplified processing technology, reduced the advantages such as processing cost.
Description
Technical field
The utility model relates to a kind of multi-way valve, especially a kind of integral multitandem valve that is 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 it and high yield good harvest are linked together.Along with national economy, the particularly development of rural economy and agricultural productive force, peasant is grown to even greater heights to the cry of rice and wheat harvester tool, and the function and significance of harvesting mechanization is just obtaining more and more people's understanding.In harvest machinery industry, hydraulics has obtained application more and more widely, the application percentage of hydraulic transmission is increasing, hydraulic operation has not been simple traditional pure mechanical transmission that replaces, but a series of advanced persons' design principle and structure have been introduced, become the indivisible organic component of harvest machinery, make harvest machinery there is good operating characteristics, can meet preferably agricultural technology requirement.Therefore this project market foreground is wide, has good social economic benefit.Harvest machinery is in time point intensive work about one month, and the reliability of machine has determined 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 restricting the development of the performance of complete machine, thus design now more hydraulic element 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 rise and fall and the unidirectional locking of actuator.This multi-way valve is integrated in Pilot operated check valve in working body, compact structure, and operating life is high, has reduced 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 partly consists of oil-feed valve block 1, a plurality of work valve block 2 and oil return valve block 3 etc., between two adjacent valve blocks, adopt seal ring 4 between sheet to seal, seal ring between needing a plurality of, therefore between sheet, the risk of leakage of oil is larger, 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, a plurality of 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 be first by Split assembled, and then machining hole; Because valve body is when urgent, valve main aperture has micro-distortion, causes valve rod when dress examination, to occur catching phenomenon; So need to become after integral body at separable assembled, need to revise the size of main aperture, guarantee the flexibility of stem movement.
In existing multi-way valve, include Split type hydraulic lock, as shown in Figure 5.The assembly limited location bar 19 that this Split type hydraulic lock comprises, steel ball 20, nylon seat 21 etc.Because nylon seat material is softer, easily at surface card impurity, thereby cause occurring poorly sealed phenomenon between steel ball and nylon seat, in generation, let out, thereby affected the functional reliability of multi-way valve.
Model utility content
The utility model is the deficiency existing in above-mentioned prior art for avoiding, and a kind of integral multitandem valve that is provided with integral hydraulic lock is provided, to reduce the risk of leakage of oil, the functional reliability of raising valve.
The utility model be technical solution problem by the following technical solutions.
The integral multitandem valve that is provided with integral hydraulic lock, its structural feature is to comprise an oil-feed valve block, a plurality of work valve block and an oil return valve block; Described a plurality of work valve block is arranged between described oil-feed valve block and described oil return valve block; Described oil-feed valve block, a plurality of work valve block and oil return valve block are monolithic construction; On described oil-feed valve block, be provided with oil inlet P, on described oil return valve block, be provided with oil return inlet T; On each work valve block of described a plurality of work valve blocks, be provided with one or two actuator port; Within each work valve block of described a plurality of work valve blocks, be inserted with a valve rod, one end of described valve rod stretches out in outside described work valve block;
Shown in work in valve block and be provided with integral hydraulic lock, valve rod, twin-lock hydraulic control push rod and rear plug; In described work valve block, be provided with valve pocket, within described valve rod, twin-lock hydraulic control push rod, rear plug and integral hydraulic lock are all located at described valve pocket; Wherein, described integral hydraulic lock, twin-lock hydraulic control push rod and rear plug set gradually from left to right;
Shown in integral hydraulic lock comprise 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 stepped shaft inner chamber of the left end of described Returnning spring and described steel locking-valve seat connects, and the right-hand member of described Returnning spring and described locking-valve core connect.
The structural feature that is provided with the integral multitandem valve of integral hydraulic lock of the present utility model is also:
The outer circumferential face of described steel locking-valve seat is provided with annular groove, in described annular groove, is provided with seal ring.
On the outer circumferential face of described locking-valve cover, be equipped with annular groove, in described annular groove, be provided with seal ring.
Described seal ring all adopts rubber seal.
Compared with the prior art, the utility model beneficial effect is embodied in:
The integral multitandem valve that is provided with integral hydraulic lock of the present utility model, has following technological merit.
(1) oil-feed valve block, work valve block and oil return valve block are set to monolithic construction, and global formation has reduced the risk of leakage of oil between sheet, has improved the functional reliability of multi-way valve.
(2) without punching, save clamping bolt on valve block, simplified processing technology, shortened the manufacture cycle.
(3) owing to adopting integral hydraulic lock to substitute Split type hydraulic lock, the valve seat of integral hydraulic lock adopts steel matter, locking-valve core adopts cone valve structure, and for making locking-valve, linear sealing can not affect because of the impurity in hydraulic oil the seal of locking-valve, thereby make multi-way valve there is good stain resistance, avoided multi-way valve to occur internal leakage phenomenon.
The integral multitandem valve that is provided with integral hydraulic lock of the present utility model, have can reduce leakage of oil risk, avoid internal leakage, improve valve functional reliability, simplified processing technology, reduced the advantages such as processing cost.
Accompanying drawing explanation
Fig. 1 is the outline drawing that is provided with the integral multitandem valve of integral hydraulic lock of the present utility model.
Fig. 2 is the sectional view of the A-A of Fig. 1.
Fig. 3 is the sectional view that the integral hydraulic that is provided with the integral multitandem valve of integral hydraulic lock of the present utility model is locked.
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, 12 rear plugs, 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 pass through embodiment, and the utility model is described in further detail by reference to the accompanying drawings.
Embodiment
Referring to accompanying drawing 1-3, the integral multitandem valve that is provided with integral hydraulic lock of the present utility model, comprises an oil-feed valve block 1, a plurality of work valve block 2 and an oil return valve block 3; Described a plurality of 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, a plurality of work valve block 2 and oil return valve block 3 are monolithic construction; On described oil-feed valve block 1, be provided with oil inlet P 6, on described oil return valve block 3, be provided with oil return inlet T 8; On each work valve block 2 of described a plurality of work valve blocks 2, be provided with one or two actuator port 7; Within each work valve block 2 of described a plurality of work valve blocks 2, be inserted with a valve rod 9, one end of described valve rod 9 stretches out in outside described work valve block 2;
Shown in work and be provided with integral hydraulic lock 10, valve rod 9, twin-lock hydraulic control push rod 11 and rear plug 12 in valve block 2; In described work valve block 2, be provided with valve pocket 13, within described valve rod 9, twin-lock hydraulic control push rod 11, rear plug 12 and integral hydraulic lock 10 are all located at 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 in integral hydraulic lock 10 comprise 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 stepped shaft inner chamber of the left end of described Returnning spring 17 and described steel locking-valve seat 14 connects, and the right-hand member of described Returnning spring 17 and described locking-valve core 15 connect.
As Fig. 1, this multi-way valve is set to monolithic construction, and oil-feed valve block, a plurality of work valve block and oil return valve block have been made an integral body.Do not need to combine one by one, do not need bolton yet, between valve block also without seal ring between sheet is set in addition.Compare with existing Split multi-way valve, there is the following aspects: (1) has saved seal ring between sheet, has saved cost, avoided sealing between sheet tightly not cause the problem of leakage of oil simultaneously, improved the functional reliability of multi-way valve; (2) without punching, save clamping bolt on valve block, simplified processing technology, shortened the manufacture cycle.
Integral multitandem valve of the present utility model, is integrated type product, Jiang Wu road valve global formation, the risk of leakage of oil between minimizing sheet.In technique, reduce whole fraising technique simultaneously, greatly shortened the manufacture cycle.
The left end of described locking-valve core is provided with blind hole, within described blind hole is inserted from the left end of described locking-valve core in the right part of described Returnning spring and connect with the right side of described blind hole.The outer circumferential face of the right part of described locking-valve core is taper.Because locking-valve core is cylindrical surface with the face that described locking-valve cover matches, locking-valve core can be moved neatly in locking-valve cover, the flexibility that has improved multi-way valve.
The steel locking-valve seat of integral hydraulic lock, locking-valve core, locking-valve cover and Returnning spring are the locking-valves of monolithic construction, be arranged between integral hydraulic lock actuator port and multichannel valve pocket, owing to adopting integral hydraulic lock to substitute architomia formula hydraulic lock, the valve seat of integral hydraulic lock adopts steel matter, locking-valve core adopts cone valve structure, and for making locking-valve, linear sealing can not affect because of the impurity in hydraulic oil the seal of locking-valve, thereby make multi-way valve there is good stain resistance, avoided multi-way valve to occur internal leakage phenomenon.Integral hydraulic lock, material adopts 40Cr, heat treatment hardness (45～50) HRC.Be difficult for contaminated clamping stagnation, in causing, let out.And integrated type, with respect to split type, is 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.
On the outer circumferential face of described locking-valve cover 16, be equipped with annular groove, in described annular groove, be provided with seal ring 18.
Described seal ring 18 all adopts rubber seal.
Between plug-in type locking-valve and the inner chamber of valve body, by seal ring, seal, improved the sealability of multi-way valve.
Steel locking-valve seat and locking-valve cover adopts fine thread to link together, and forms an all-in-one-piece plug-in type locking-valve, by the positioning control actuator port of the spool of plug-in type locking-valve and the connected sum between valve pocket, is disconnected.Because plug-in type locking-valve is monolithic construction, can, by the interior hexagonal hole dismounting plug-in type locking-valve from multi-way valve on the left side of steel locking-valve seat, 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 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, has solved the problem that in prior art, multi-way valve easily leaks.
More than show and described basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what in above-described embodiment and specification, describe is principle of the present utility model; under the prerequisite that does not depart from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall in claimed scope of the present utility model.The protection domain that the utility model requires is defined by appending claims and equivalent thereof.
Claims (4)
1. the integral multitandem valve that is provided with integral hydraulic lock, is characterized in that, comprises an oil-feed valve block (1), a plurality of work valve block (2) and an oil return valve block (3); Described a plurality of work valve blocks (2) are arranged between described oil-feed valve block (1) and described oil return valve block (3); Described oil-feed valve block (1), a plurality of work valve block (2) and oil return valve block (3) are monolithic construction; On described oil-feed valve block (1), be provided with oil inlet P (6), on described oil return valve block (3), be provided with oil return inlet T (8); On each work valve block (2) of described a plurality of work valve blocks (2), be provided with one or two actuator port (7); Within each work valve block (2) of described a plurality of work valve blocks (2), be inserted with a valve rod (9), one end of described valve rod (9) stretches out in outside described work valve block (2);
Shown in work and be provided with integral hydraulic lock (10), valve rod (9), twin-lock hydraulic control push rod (11) and rear plug (12) in valve block (2); In described work valve block (2), be provided with valve pocket (13), within described valve rod (9), twin-lock hydraulic control push rod (11), rear plug (12) and integral hydraulic lock (10) are all located at 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 in integral hydraulic lock (10) comprise 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 stepped shaft inner chamber of the left end of described Returnning spring (17) and described steel locking-valve seat (14) connects, and the right-hand member of described Returnning spring (17) and described locking-valve core (15) connect.
2. the integral multitandem valve that is provided with integral hydraulic lock according to claim 1, is characterized in that, 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.
3. the integral multitandem valve that is provided with integral hydraulic lock according to claim 1, is characterized in that, on the outer circumferential face of described locking-valve cover (16), is equipped with annular groove, is provided with seal ring (18) in described annular groove.
4. the integral multitandem valve that is provided with integral hydraulic lock according to claim 1, is characterized in that, described seal ring (18) all adopts rubber seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420470005.6U CN203978986U (en) | 2014-08-19 | 2014-08-19 | Be provided with the integral multitandem valve of integral hydraulic lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420470005.6U CN203978986U (en) | 2014-08-19 | 2014-08-19 | Be provided with the integral multitandem valve of integral hydraulic lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203978986U true CN203978986U (en) | 2014-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420470005.6U Expired - Fee Related CN203978986U (en) | 2014-08-19 | 2014-08-19 | Be provided with the integral multitandem valve of integral hydraulic lock |
Country Status (1)
| Country | Link |
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| CN (1) | CN203978986U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514764A (en) * | 2014-08-19 | 2015-04-15 | 合肥长源液压股份有限公司 | Integral multi-way valve with zero-leakage pollution-resistant integral hydraulic locks |
| CN110552776A (en) * | 2018-06-01 | 2019-12-10 | 卡特彼勒公司 | Temperature regulator with integrated casing, thermostatic valve and valve seat |
-
2014
- 2014-08-19 CN CN201420470005.6U patent/CN203978986U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514764A (en) * | 2014-08-19 | 2015-04-15 | 合肥长源液压股份有限公司 | Integral multi-way valve with zero-leakage pollution-resistant integral hydraulic locks |
| CN110552776A (en) * | 2018-06-01 | 2019-12-10 | 卡特彼勒公司 | Temperature regulator with integrated casing, thermostatic valve and valve seat |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20200819 |