CN2761929Y - Integral multipass reversal valve - Google Patents
Integral multipass reversal valve Download PDFInfo
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- CN2761929Y CN2761929Y CN 200520049716 CN200520049716U CN2761929Y CN 2761929 Y CN2761929 Y CN 2761929Y CN 200520049716 CN200520049716 CN 200520049716 CN 200520049716 U CN200520049716 U CN 200520049716U CN 2761929 Y CN2761929 Y CN 2761929Y
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Abstract
The utility model relates to an integral multipath reversing valve, which comprises a valve body (1), an oil port, an oil cavity and an oil passage, wherein the oil port is connected to the exterior part of the surface of the valve body (1), and the oil cavity and the oil passage are arranged in the valve body (1). The utility model is characterized in that the valve body (1) is of an integral type and is provided with a set of overflow valves (2), a set of selector valves (3), a set of hydraulic control one-way valves (4), and one to eight sets of reversing valves (5) in sequence. Compared with the traditional multipath reversing valve, the utility model has the advantages that the integral multipath reversing valve adopts an integral type construction without seal between vanes and has good tightness performance; a mold casting oil passage can be used, which reduces liquid resistance, cuts down pressure loss, and reduces heat generation of the system; the structure is compact, and connection oil paths among the valve sets all adopt built-in type, which reduces external connection pipe paths; machining parts are reduced, production period is shortened and manufacturing cost is correspondingly cut down.
Description
Technical field
The utility model relates to a kind of valve, relates generally to the position control valve that is used for the support oil cylinder of truck system under the hydraulic hoist, i.e. integral multi-way reversing valve.
Background technique
On machinery such as modern project machinery, building machinery, adopted the hydraulic pressure withstand leg in a large number, wherein position control valve is crucial hydraulic element, the quality of its performance will directly have influence on the performance of whole main frame.The tradition that adopts on the hydraulic hoist selector valve of getting off is generally the split blade type machine and adds runner, exist the resistance of oil impregnate between sheet, liquid and the pressure loss is big, energy consumption is high, easy heating or the like the problem of system, and these problems become the march toward obstacle of international most advanced level of homemade hydraulic hoist always.In addition, the split blade type machine adds flow passage structure because component are many, the manufacturing procedure complexity, and production management is loaded down with trivial details, and the process-cycle is long, makes manufacturing enterprise's manufacture cost height, and quality of product can not get assurance.
Summary of the invention
The technical problem that the utility model solved be overcome seepage between the sheet that traditional selector valve exists, the liquid resistance is big, the pressure loss is too high and defective such as external connecting pipe road complexity, a kind of process-cycle weak point, low cost of manufacture are provided, have excellent sealing performance and cast the runner multiple directional control valve with the integrated type of energy-saving and cost-reducing effect.
The technological scheme that the utility model technical solution problem is adopted is as follows: integral multi-way reversing valve, comprise valve body 1., 1. valve body connect hydraulic fluid port, valve body 1. inner oil pocket and oil duct in the outside on surface, it is characterized in that, 1. valve body is integrated type, be equipped with successively on it one group of relief valve 2., a group selection valve 3., one group of Pilot operated check valve 4. with 1～8 group of selector valve 5..
Outside connection hydraulic fluid port is P, T, V, H, A, B, and inner oil duct is a, b, c, d, e, f, g, and relief valve cuts off I oil pocket and J oil pocket, corresponding hydraulic fluid port P and T; C, D, E, F, G, X, Y oil pocket are arranged in the selector valve, and oil duct a connects I, D oil pocket, and oil duct b connects I, F oil pocket, in order to control from the fluid of a, b oil duct direction to c, d, e, f, each oil duct of g; Oil duct g leads to the J oil pocket; Oil pocket M, R, N, S are arranged in the Pilot operated check valve, and oil duct d connects F, M oil pocket, and oil duct e connects oil pocket E, R, the corresponding hydraulic fluid port V of oil pocket R, and oil duct f connects C, N oil pocket, cuts off N oil pocket and S oil pocket with Pilot operated check valve, the corresponding H hydraulic fluid port of oil pocket S; Oil pocket U is arranged in the selector valve, corresponding hydraulic fluid port A, oil pocket W, its corresponding hydraulic fluid port B also has oil pocket K, and oil duct c is communicated with oil pocket G and oil pocket K.
Compare with traditional multiple directional control valve, advantage of the present utility model is: adopt monolithic construction, seal between no sheet, have excellent sealing performance; Available cast form oil duct has reduced the liquid resistance, has reduced the pressure loss, reduces system's heating; Compact structure, the connection oil circuit between each valve group all adopt built-in, have reduced the external connecting pipe road; Processing accessories reduces, and the manufacture cycle shortens, the corresponding decline of manufacture cost.
Description of drawings
Fig. 1 is a plan view of the present utility model
Fig. 2 is a plan view of the present utility model
Fig. 3 is the A-A sectional view
Fig. 4 is a schematic diagram of the present utility model
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is described in further detail: selector valve is 4 groups in the present embodiment, among Fig. 2 and 3: 1., valve body, 2., relief valve, 3., selector valve,, 4., Pilot operated check valve, 5., selector valve.In Fig. 2: P is the pressure oil-source interface, and T is the oil return interface, and H is a supporting leg cylinder rod chamber interface, and V is the pressure oil-source interface of getting on the bus, A
(1,2,3,4), B
(1,2,3,4)Be supporting leg cylinder rodless cavity interface.
2. relief valve comprises locking nut 1, regulate double-screw bolt 2, swivel nut 3, pressure adjusting spring 4, needle-valve 5, pintle valve seat 6, valve pocket 7, spool 8 and Returnning spring 9, locking nut 1 is enclosed within regulates double-screw bolt 2 upper ends, regulate double-screw bolt 2 and be positioned at swivel nut 3, pressure adjusting spring 4 is positioned at regulates double-screw bolt 2, needle-valve 5 is positioned at pressure adjusting spring 4, pintle valve seat 6 is positioned at the sharp end of needle-valve 5, and be in the valve pocket 7, spool 8 also is arranged in valve pocket 7, and Returnning spring 9 is arranged in spool 8, oil pocket J is arranged around the valve pocket 7, front end has oil pocket I, and the I chamber has oil duct b and F chamber to communicate, and has oil duct a and D chamber to communicate, the J chamber has oil duct g and oil pocket X to communicate, and I chamber and J chamber are respectively and outer oil-collecting hole P, T communicates.
3. selector valve comprises end cap 10, valve rod 11, packing ring 12, cover cap 13, Returnning spring 14, spring seat 15 and attaching nut 16,1. valve rod 11 passes valve body, one end is fixed with end cap 10, the other end is with packing ring 12, packing ring 12 is positioned at cover cap 13, Returnning spring 14 also is positioned at cover cap 13 and packing washer 12, Returnning spring 14 1 ends have spring seat 15, there is attaching nut 16 end of cover cap 13, and valve rod 11 is step-like, and valve body forms X between 1., C, D, E, F, G, Y7 oil pocket, oil duct d communicates F chamber and M chamber, oil duct e communicates E chamber and R chamber, and oil duct f communicates C chamber and N chamber, and oil duct c communicates G chamber and K chamber.
4. Pilot operated check valve comprises plug screw 17, valve pocket 18, nonreturn valve core 19, spring 20, piston 21 and screw plug 22, plug screw 17 is fixed on valve body 1. on the end face, valve pocket 18 is positioned at plug screw 17, nonreturn valve core 19 is positioned at valve pocket 18, spring 20 is positioned at nonreturn valve core 19, the front end of nonreturn valve core 19 has piston 21, screw plug 22 is fixed on valve body 1. the another side corresponding with plug screw 17, around step-like piston 21 and valve pocket 18, oil pocket S is arranged, N, R, M, oil duct c and M chamber communicate, and oil duct e and R chamber communicate, and oil duct f and N chamber communicate, R chamber and outer oil-collecting hole V communicate, and S chamber and outer oil-collecting hole H communicate.
5. selector valve comprises end cap 23, valve rod 24, cover cap 25, spring 26, ball seat 27, lock ring 28, steel ball 29 and attaching nut 30, end cap 23 is fixed on valve body surface 1., 1. valve rod 24 penetrates valve body, the other end at valve rod 24, with valve rod 24 is the center, from inside to outside, be steel ball 29 successively, ball seat 27, lock ring 28, spring 26, cover cap 25, attaching nut 30 is positioned at the end of cover cap 25, W is arranged around valve rod 24, K, three oil pockets of U, oil duct c connects together 4 selector valves K oil pocket 5., and communicates with selector valve G oil pocket 3., U oil pocket and outer oil-collecting hole A communicate, and W oil pocket and outer oil-collecting hole B communicate.
Fig. 4 is that the utility model is applied in the hydraulic schematic diagram on the truck system under the hydraulic hoist.The hydraulic fluid port P of this valve connects pressure oil-source, and hydraulic fluid port T takes back fuel tank; Hydraulic fluid port H connects supporting leg cylinder rod chamber, and hydraulic fluid port V connects vehicle control; Hydraulic fluid port A
(1,2,3,4), B
(1,2,3,4)Connect supporting leg cylinder rodless cavity.
The work control procedure of this valve is as follows:
1,2. relief valve guarantees that its pressure peak of pressure oil-source of each actuator port output of this valve is a rating value, plays the safety protection effect.
2,3. selector valve is three position four-way directional control valve.When valve rod 11 was in meta, I cavity pressure oil sources mutually led to R chamber through D, E, F chamber with the e oil duct by a, b oil duct, leads to vehicle control through hydraulic fluid port V; When valve rod 11 pulled outward, I cavity pressure oil sources mutually led to M chamber through the F chamber with the d oil duct by the b oil duct, promoted piston 21 and moved right, and opened nonreturn valve core 19, and H mouth fluid behind the N oil pocket, arrives the J oil pocket through the f oil duct to the g oil duct through the S oil pocket again.Simultaneously, b oil duct fluid flows to the c oil duct to the K oil pocket through the G oil pocket, supplies with 5. pressure oil-source of four groups of selector valves; When valve rod 11 pushes away inward, I cavity pressure oil sources by a oil duct to D chamber and C chamber through the f oil duct again to the N chamber, open then nonreturn valve core 19 behind the S oil pocket to the H hydraulic fluid port.
3, selector valve is 5. totally four groups, 3-position 4-way, oil circuit in parallel.When selector valve valve rod 11 3. pulled outward, I cavity pressure oil sources arrived K through the c oil duct
(1,2,3,4)Oil pocket is to 5. fuel feeding of selector valve group.When selector valve valve rod 24 pulled outward, the K oil pocket led to the W oil pocket, and actuator port B pressure oil output is to the rodless cavity of support oil cylinder; When selector valve valve rod 24 pushed away inward, the K oil pocket led to the U oil pocket, and actuator port A pressure oil output is to the rodless cavity of support oil cylinder.
Claims (4)
1, integral multi-way reversing valve, comprise valve body (1.), the outside on valve body (1.) surface connects hydraulic fluid port, oil pocket and oil duct that valve body (1.) is inner, valve body (1.) is an integrated type, it is characterized in that, one group of relief valve (2.) is housed on it successively, one group selection valve (3.), one group of Pilot operated check valve (4.) and 1～8 group of selector valve (5.), Pilot operated check valve (4.) comprises plug screw (17), valve pocket (18), nonreturn valve core (19), spring (20), piston (21) and screw plug (22), plug screw (17) is fixed on valve body (1.) end face, valve pocket (18) is positioned at plug screw (17), nonreturn valve core (19) is positioned at valve pocket (18), spring (20) is positioned at nonreturn valve core (19), the front end of nonreturn valve core (19) has piston (21), screw plug (22) is fixed on the another side of the valve body (1.) corresponding with plug screw (17), at step-like piston (21) and valve pocket (18) oil pocket S is arranged on every side, N, R, M, oil duct c and M chamber communicate, oil duct e and R chamber communicate, oil duct f and N chamber communicate, R chamber and outer oil-collecting hole V communicate, and S chamber and outer oil-collecting hole H communicate.
2, integral multi-way reversing valve according to claim 1, it is characterized in that relief valve (2.) comprises locking nut (1), regulate double-screw bolt (2), swivel nut (3), pressure adjusting spring (4), needle-valve (5), pintle valve seat (6), valve pocket (7), spool (8) and Returnning spring (9), locking nut (1) is enclosed within regulates double-screw bolt (2) upper end, regulate double-screw bolt (2) and be positioned at swivel nut (3), pressure adjusting spring (4) is positioned at regulates double-screw bolt (2), needle-valve (5) is positioned at pressure adjusting spring (4), pintle valve seat (6) is positioned at the sharp end of needle-valve (5), and be in the valve pocket (7), spool (8) also is arranged in valve pocket (7), Returnning spring (9) is arranged in spool (8), valve pocket (7) has oil pocket J on every side, front end has oil pocket I, the I chamber has oil duct b and F chamber to communicate, have oil duct a and D chamber to communicate, the J chamber has oil duct g and oil pocket X to communicate, and I chamber and J chamber are respectively and outer oil-collecting hole P, T communicates.
3, integral multi-way reversing valve according to claim 1, it is characterized in that selector valve (3.) comprises end cap (10), valve rod (11), packing ring (12), cover cap (13), Returnning spring (14), spring seat (15) and attaching nut (16), valve rod (11) passes valve body (1.), one end is fixed with end cap (10), the other end is with packing ring (12), packing ring (12) is positioned at cover cap (13), Returnning spring (14) also is positioned at cover cap (13) and packing washer (12), Returnning spring (14) one ends have spring seat (15), there is attaching nut (16) end of cover cap (13), valve rod (11) is step-like, and form X between the valve body (1.), C, D, E, F, G, Y7 oil pocket, oil duct d communicate F chamber and M chamber, and oil duct e communicates E chamber and R chamber, oil duct f communicates C chamber and N chamber, and oil duct c communicates G chamber and K chamber.
4, according to the described integral multi-way reversing valve of claim 1, it is characterized in that, selector valve (5.) comprises end cap (23), valve rod (24), cover cap (25), spring (26), ball seat (27), lock ring (28), steel ball (29) and attaching nut (30), end cap (23) is fixed on the surface of valve body (1.), valve rod (24) penetrates valve body (1.), the other end in valve rod (24), with valve rod (24) is the center, from inside to outside, be steel ball (29) successively, ball seat (27), lock ring (28), spring (26), cover cap (25), attaching nut (30) is positioned at the end of cover cap (25), at valve rod (24) W is arranged on every side, K, three oil pockets of U, oil duct c connects together the K oil pocket of several selector valves (5.), and communicates with the G oil pocket of selector valve (3.), U oil pocket and outer oil-collecting hole A communicate, and W oil pocket and outer oil-collecting hole B communicate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520049716 CN2761929Y (en) | 2005-04-06 | 2005-04-06 | Integral multipass reversal valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520049716 CN2761929Y (en) | 2005-04-06 | 2005-04-06 | Integral multipass reversal valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2761929Y true CN2761929Y (en) | 2006-03-01 |
Family
ID=36095055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520049716 Expired - Lifetime CN2761929Y (en) | 2005-04-06 | 2005-04-06 | Integral multipass reversal valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2761929Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011116677A1 (en) * | 2010-03-21 | 2011-09-29 | 长沙中联重工科技发展股份有限公司 | Control loop and unloading multipath reversing valve for multi support legs of crane |
| CN102454597A (en) * | 2010-10-29 | 2012-05-16 | 四川宏华石油设备有限公司 | Hydraulic cylinder used for drill pump |
| CN103573733A (en) * | 2013-11-05 | 2014-02-12 | 龙工（上海）精工液压有限公司 | Novel buffering pressure-stabilizing valve used for hydraulic motor |
| CN106762899A (en) * | 2016-11-25 | 2017-05-31 | 合肥协力液压科技有限公司 | One kind automatically resets valve rod assembly |
| CN109441903A (en) * | 2018-12-10 | 2019-03-08 | 中联重科股份有限公司 | Load-sensitive multiple directional control valve |
-
2005
- 2005-04-06 CN CN 200520049716 patent/CN2761929Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011116677A1 (en) * | 2010-03-21 | 2011-09-29 | 长沙中联重工科技发展股份有限公司 | Control loop and unloading multipath reversing valve for multi support legs of crane |
| CN102454597A (en) * | 2010-10-29 | 2012-05-16 | 四川宏华石油设备有限公司 | Hydraulic cylinder used for drill pump |
| CN103573733A (en) * | 2013-11-05 | 2014-02-12 | 龙工（上海）精工液压有限公司 | Novel buffering pressure-stabilizing valve used for hydraulic motor |
| CN103573733B (en) * | 2013-11-05 | 2016-01-27 | 龙工（上海）精工液压有限公司 | A kind of buffering pressure maintaining valve for oil hydraulic motor |
| CN106762899A (en) * | 2016-11-25 | 2017-05-31 | 合肥协力液压科技有限公司 | One kind automatically resets valve rod assembly |
| CN109441903A (en) * | 2018-12-10 | 2019-03-08 | 中联重科股份有限公司 | Load-sensitive multiple directional control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHANGDE ZHONGLIAN ZHONGKE HYDRAULIC CO., LTD. Free format text: FORMER NAME: CHANGDE XINCHENG HYDRAULIC CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 415000, Changde, Hunan Province, Wuling District, Ji Ting Road, No. 2 Patentee after: Changde Zhonglian Zhongke Hydraulic Co., Ltd. Address before: 415000, Changde, Hunan Province, Wuling District, Ji Ting Road, No. 2 Patentee before: Xincheng Hydraulic Co., Ltd., Changde |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150406 Granted publication date: 20060301 |