CN204716650U - Variable priority flow leveling integrated valve group - Google Patents
Variable priority flow leveling integrated valve group Download PDFInfo
- Publication number
- CN204716650U CN204716650U CN201520197214.2U CN201520197214U CN204716650U CN 204716650 U CN204716650 U CN 204716650U CN 201520197214 U CN201520197214 U CN 201520197214U CN 204716650 U CN204716650 U CN 204716650U
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- Prior art keywords
- valve
- control valve
- flow control
- mouth
- leveling
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Abstract
The utility model provides a kind of variable priority flow leveling integrated valve group, and variable priority flow leveling integrated valve group comprises: relief valve 1, pressure compensation energy-saving valve 2, first solenoid directional control valve 3, second solenoid directional control valve 5, A1 mouth flow control valve, A2 mouth flow control valve, B1 mouth flow control valve, B2 mouth flow control valve, M pressure tap, P filler opening, T return opening, C oil outlet, the first shuttle valve 11, second shuttle valve 8 and the 3rd shuttle valve 4.It is consistent that the utility model variable priority flow leveling integrated valve group can realize the upper and lower speed of leveling cyclinder, can according to the operating rate of different Operating condition adjustment leveling, and levelling effect is steady; This variable priority flow leveling integrated valve group also has energy-conservation, that leveling efficiency is high advantage; This valve group level of integration is high, effectively saves hydraulic pipe line, facilitates in-site installation and maintenance.
Description
Technical field
The utility model relates to pivot leveling control technique, particularly relates to a kind of variable priority flow leveling integrated valve group.
Background technique
At present, pivot leveling control field, domestic and international major part is the valve set system adopted as depicted in figs. 1 and 2,3. the mouth of the single priority traffic valve shown in Fig. 1 receives the 3. mouth of flow divider-combiner as shown in Figure 2 by hydraulic pipe line, then 2. mouth and 4. mouth connect two solenoid directional control valves respectively by hydraulic pipe line again, realize the control to two leveling cyclinders.
There is following defect in above-mentioned valve set system, one is that in Fig. 1, priority traffic valve flow is non-adjustable, the speed of leveling cyclinder can not be regulated, can only realize a kind of speed; Two is that 2. mouth is with 4. mouth flow is the same for flow divider-combiner, but oil cylinder has bar, rodless cavity area different, so it is inconsistent to cause leveling cyclinder upwards to regulate with the speed regulated downwards; Three is when the uncomfortable level state of oil cylinder, 3. the oral fluid force feed of Fig. 1 priority traffic valve still will be fed to solenoid directional control valve through flow divider-combiner, then direct oil sump tank, can not participate in the follow-up work needs of 2. mouth in Fig. 1, energy dissipation, cause the underfed of 2. mouth, subsequent action efficiency is low simultaneously; Four is that above-mentioned valve set system element is scattered, and connecting pipeline is complicated, is not easy to maintenance, also there is the more problem of leakage point simultaneously.
Model utility content
The purpose of this utility model is, for the problems referred to above, propose a kind of variable priority flow leveling integrated valve group, this valve group level of integration is high, while controlling realizing the leveling of pivot leveling cyclinder, and effective energy saving.
For achieving the above object, the technical solution adopted in the utility model is: a kind of variable priority flow leveling integrated valve group, comprising: relief valve, pressure compensation energy-saving valve, the first solenoid directional control valve, the second solenoid directional control valve, A1 mouth flow control valve, A2 mouth flow control valve, B1 mouth flow control valve, B2 mouth flow control valve, M pressure tap, P filler opening, T return opening, C oil outlet, the first shuttle valve, the second shuttle valve and the 3rd shuttle valve;
Described first electromagnetic switch valve outlet port is connected with A1 mouth flow control valve inlet and B1 mouth flow control valve inlet respectively, is provided with the first shuttle valve between described A1 mouth flow control valve outlet port and B1 mouth flow control valve outlet port;
Described second electromagnetic switch valve outlet port is connected with A2 mouth flow control valve inlet and B2 flow control valve inlet respectively, is provided with the second shuttle valve between described A2 mouth flow control valve outlet port and B2 mouth flow control valve outlet port;
The 3rd shuttle valve is provided with between described first shuttle valve and the second shuttle valve;
Described P filler opening is connected with the first solenoid directional control valve, the second solenoid directional control valve filler opening respectively; Described T return opening is connected with the first solenoid directional control valve, the second solenoid directional control valve return opening respectively; Described M pressure tap is connected with P filler opening, is provided with relief valve between described P filler opening and T return opening; Be provided with pressure compensation energy-saving valve between described P filler opening and C oil outlet, described pressure compensation energy-saving valve is connected with the 3rd shuttle valve.
Further, above-mentioned connection is all connected by hydraulic valve internal galleries.
Described A1 mouth, B1 mouth be No. 1 leveling cyclinder decline, hoist hydraulic fluid port; A2 mouth, B2 mouth be No. 2 leveling cyclinders decline, hoist hydraulic fluid port.
The utility model variable priority flow leveling integrated valve group is simple and reasonable for structure, compact, and while realizing pivot leveling cyclinder leveling control, also effectively saved the energy, particularly, the utility model has the following advantages compared with prior art:
(1) to realize the upper and lower speed of leveling cyclinder consistent for the utility model variable priority flow leveling integrated valve group, levelling effect is steady, by A1 mouth flow control valve, A2 mouth flow control valve regulation A1, A2 mouth flow, again by valve B1 mouth flow control valve, B2 mouth flow control valve regulation B1, B2 mouth flows match, achieve two leveling cyclinder speed consistent; Simultaneously can also according to the operating rate of different Operating condition adjustment leveling;
(2) energy-conservation, efficient, perception two leveling cyclinder working staties are carried out by the first shuttle valve, the second shuttle valve and the 3rd shuttle valve, and pass to pressure compensation energy-saving valve, when two leveling cyclinders do not work, P filler opening fluid all flows to C oil outlet and meets follow-up work, when two leveling cyclinder work, preferentially meet the partial discharge required for two leveling cyclinders and pressure, then residual flow flows to C mouth continuation follow-up work;
(3) the utility model variable priority flow leveling integrated valve group level of integration is high, effectively saves hydraulic pipe line, facilitates in-site installation and maintenance.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing priority traffic valve;
Fig. 2 is the structural representation of existing flow divider-combiner;
Fig. 3 is structural representation Fig. 1 of the utility model variable priority flow leveling integrated valve;
Fig. 4 is structural representation Fig. 2 of the utility model variable priority flow leveling integrated valve.
Reference character: 1-relief valve; 2-pressure compensation energy-saving valve; 3-first solenoid directional control valve; 4-the 3rd shuttle valve; 5-second solenoid directional control valve; 6-B2 mouth flow control valve; 8-second shuttle valve; 9-A2 mouth flow control valve; 10-B1 mouth flow control valve; 11-first shuttle valve; 13-A1 mouth flow control valve.
Embodiment
Below in conjunction with embodiment, the utility model is further illustrated:
Embodiment 1
Present embodiment discloses a kind of for pivot leveling control variable priority flow leveling integrated valve group, its concrete structure as depicted in figs. 1 and 2: variable priority flow leveling integrated valve group comprises: relief valve 1, pressure compensation energy-saving valve 2, first solenoid directional control valve 3, second solenoid directional control valve 5, A1 mouth flow control valve, A2 mouth flow control valve, B1 mouth flow control valve, B2 mouth flow control valve, M pressure tap, P filler opening, T return opening, C oil outlet, the first shuttle valve 11, second shuttle valve 8 and the 3rd shuttle valve 4.
Described first solenoid directional control valve 3 exports and is connected with A1 mouth flow control valve 13 entrance and B1 mouth flow control valve 10 entrance respectively, and described A1 mouth flow control valve 13 exports and be provided with the first shuttle valve 11 between the outlet of B1 mouth flow control valve 10;
Described second solenoid directional control valve 5 exports and is connected with A2 mouth flow control valve 9 entrance and B2 flow control valve 6 entrance respectively, and described A2 mouth flow control valve 9 exports and be provided with the second shuttle valve 8 between the outlet of B2 mouth flow control valve 6;
The 3rd shuttle valve 4 is provided with between described first shuttle valve 11 and the second shuttle valve 8;
Described P filler opening is connected with the first solenoid directional control valve 3, second solenoid directional control valve 5 filler opening respectively; Described T return opening is connected with the first solenoid directional control valve 3, second solenoid directional control valve 5 return opening respectively; Described M pressure tap is connected with P filler opening, is provided with relief valve 1 between described P filler opening and T return opening; Be provided with pressure compensation energy-saving valve 2 between described P filler opening and C oil outlet, described pressure compensation energy-saving valve 2 is connected with the 3rd shuttle valve 4.
Above-mentioned connection is all connected by hydraulic valve internal galleries.
Described A1 mouth, B1 mouth be No. 1 leveling cyclinder decline, hoist hydraulic fluid port; A2 mouth, B2 mouth be No. 2 leveling cyclinders decline, hoist hydraulic fluid port.
System fluid first through relief valve 1, to realize the protection to system pressure; Pressure compensation energy-saving valve 2, on the basis preferentially meeting leveling cyclinder needs flow, supplies follow-up work flow; First solenoid directional control valve 3, for the turnover oil of control A1, B1 hydraulic fluid port, thus realizes the hoisting of No. 1 leveling stream cylinder, declines; 3rd shuttle valve 4 can by the signal feed back of load to pressure compensation energy-saving valve 2; The turnover oil of second solenoid directional control valve 5 control A2, B2 hydraulic fluid port, thus realize the hoisting of No. 2 leveling cyclinders, decline; The size of A1 mouth flow control valve 13 for regulating A1 mouth to stablize output flow; B1 mouth flow control valve 10 can regulate B1 mouth to stablize the size of output flow; First shuttle valve 11 can realize collection and the feedback of No. 1 leveling cylinder load signal; The size of A2 mouth flow control valve 9 for regulating A2 mouth to stablize output flow; B2 mouth flow control valve 6 can regulate B2 mouth to stablize the size of output flow; Second shuttle valve 8 can realize collection and the feedback of No. 2 leveling cylinder load signals.
Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristics; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment's technological scheme of the utility model.
Claims (2)
1. a variable priority flow leveling integrated valve group, it is characterized in that, comprising: relief valve 1, pressure compensation energy-saving valve, the first solenoid directional control valve, the second solenoid directional control valve, A1 mouth flow control valve, A2 mouth flow control valve, B1 mouth flow control valve, B2 mouth flow control valve, M pressure tap, P filler opening, T return opening, C oil outlet, the first shuttle valve, the second shuttle valve and the 3rd shuttle valve;
Described first electromagnetic switch valve outlet port is connected with A1 mouth flow control valve inlet and B1 mouth flow control valve inlet respectively, is provided with the first shuttle valve between described A1 mouth flow control valve outlet port and B1 mouth flow control valve outlet port;
Described second electromagnetic switch valve outlet port is connected with A2 mouth flow control valve inlet and B2 flow control valve inlet respectively, is provided with the second shuttle valve between described A2 mouth flow control valve outlet port and B2 mouth flow control valve outlet port;
The 3rd shuttle valve is provided with between described first shuttle valve and the second shuttle valve;
Described P filler opening is connected with the first solenoid directional control valve, the second solenoid directional control valve filler opening respectively; Described T return opening is connected with the first solenoid directional control valve, the second solenoid directional control valve return opening respectively; Described M pressure tap is connected with P filler opening, is provided with relief valve between described P filler opening and T return opening; Be provided with pressure compensation energy-saving valve between described P filler opening and C oil outlet, described pressure compensation energy-saving valve is connected with the 3rd shuttle valve.
2. variable priority flow leveling integrated valve group according to claim 1, it is characterized in that, above-mentioned connection is all connected by hydraulic valve internal galleries.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520197214.2U CN204716650U (en) | 2015-03-24 | 2015-04-03 | Variable priority flow leveling integrated valve group |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520166432 | 2015-03-24 | ||
| CN201520166432X | 2015-03-24 | ||
| CN201520197214.2U CN204716650U (en) | 2015-03-24 | 2015-04-03 | Variable priority flow leveling integrated valve group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204716650U true CN204716650U (en) | 2015-10-21 |
Family
ID=54315652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520197214.2U Expired - Fee Related CN204716650U (en) | 2015-03-24 | 2015-04-03 | Variable priority flow leveling integrated valve group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204716650U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465072A (en) * | 2015-12-22 | 2016-04-06 | 武汉船用机械有限责任公司 | Double-cylinder control system |
| CN112797046A (en) * | 2021-04-07 | 2021-05-14 | 湖南十开科技有限公司 | Load feedback control loop and load sensitive quantitative system |
-
2015
- 2015-04-03 CN CN201520197214.2U patent/CN204716650U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465072A (en) * | 2015-12-22 | 2016-04-06 | 武汉船用机械有限责任公司 | Double-cylinder control system |
| CN105465072B (en) * | 2015-12-22 | 2018-01-26 | 武汉船用机械有限责任公司 | A kind of double cylinder control systems |
| CN112797046A (en) * | 2021-04-07 | 2021-05-14 | 湖南十开科技有限公司 | Load feedback control loop and load sensitive quantitative system |
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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: 20151021 Termination date: 20190403 |