CN204477450U - Hydraulic butterfly valve hydraulic system solenoid valve - Google Patents
Hydraulic butterfly valve hydraulic system solenoid valve Download PDFInfo
- Publication number
- CN204477450U CN204477450U CN201520052797.XU CN201520052797U CN204477450U CN 204477450 U CN204477450 U CN 204477450U CN 201520052797 U CN201520052797 U CN 201520052797U CN 204477450 U CN204477450 U CN 204477450U
- Authority
- CN
- China
- Prior art keywords
- solenoid valve
- valve
- electrohydraulic control
- hydraulic
- oil cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to hydraulic butterfly valve technical field, disclose a kind of hydraulic butterfly valve hydraulic system solenoid valve, comprise electrohydraulic control, electrohydraulic control runs for controlling to perform oil cylinder, perform oil cylinder to rotate for driving the open-shut device of butterfly valve, it also comprises first, second solenoid valve, the A mouth of electrohydraulic control is connected with the filler opening performing oil cylinder through the first solenoid valve, the B mouth of electrohydraulic control is connected with its A mouth through the second solenoid valve, when electrohydraulic control is in working position, first solenoid valve is positioned at left position, second solenoid valve is positioned at right position, when electrohydraulic control is in cleaning position, first solenoid valve is positioned at right position, second solenoid valve is positioned at left position.The utility model can not only improve the degree of regulation of butterfly valve valve, and by first, second solenoid valve electric dead electricity realizes to electrohydraulic control on-line cleaning, eliminate the bite phenomenon that electrohydraulic control occurs when switch motion, improve the efficiency of switch valve, reduce the cost of overhaul.
Description
Technical field
The utility model relates to hydraulic butterfly valve technical field, more particularly, and particularly a kind of hydraulic butterfly valve hydraulic system solenoid valve.
Background technique
The existing actuator for regulating butterfly valve aperture is all pure mechanical structure, and degree of regulation is not high.Application number be 201420179551.4 Chinese utility model patent disclose a kind of adjustment type hydraulic butterfly valve actuator, it controls to perform oil cylinder mainly through electrohydraulic control and runs, the open-shut device of butterfly valve is driven to rotate by the straight line motion performing cylinder piston rod, the aperture realizing butterfly valve controls, by the aperture of displacement transducer feedback butterfly valve in control procedure, highi degree of accuracy can be realized and control.But, after electrohydraulic control carries out switch motion operation, seldom can again carrying out switch motion in the recent period, so the oil circuit of electrohydraulic control can not effectively circulate, cause oil to pollute, finally cause electrohydraulic control, when switch motion, bite occurs.
Model utility content
The purpose of this utility model is to provide a kind of hydraulic butterfly valve hydraulic system solenoid valve that can not only realize highi degree of accuracy and control and bite not easily occurs.
In order to solve problem set forth above, the technical solution adopted in the utility model is: a kind of hydraulic butterfly valve hydraulic system solenoid valve, comprise electrohydraulic control, described electrohydraulic control runs for controlling to perform oil cylinder, described execution oil cylinder rotates for driving the open-shut device of butterfly valve, it also comprises first, second solenoid valve, the A mouth of described electrohydraulic control is connected through the filler opening of described first solenoid valve with described execution oil cylinder, the B mouth of described electrohydraulic control is connected with its A mouth through the second solenoid valve, when described electrohydraulic control is in working position, described first solenoid valve is positioned at left position, described second solenoid valve is positioned at right position, when described electrohydraulic control is in cleaning position, described first solenoid valve is positioned at right position, described second solenoid valve is positioned at left position.
According to a preferred embodiment of the present utility model: be also provided with a throttle valve between the filler opening of described first solenoid valve and described execution oil cylinder.
According to a preferred embodiment of the present utility model: first, second solenoid valve described is two position two-way valve.
According to a preferred embodiment of the present utility model: be also provided with an one-way valve between the return opening of described electrohydraulic control and fuel tank.
Compared with prior art, the beneficial effects of the utility model are: by cooperatively interacting of first, second solenoid valve and electrohydraulic control, the degree of regulation of butterfly valve valve can not only be improved, and by first, second solenoid valve electric dead electricity realizes to electrohydraulic control on-line cleaning, eliminate the bite phenomenon that electrohydraulic control occurs when switch motion, improve the efficiency of switch valve, reduce the cost of overhaul.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the working state hydraulic schematic diagram of hydraulic butterfly valve hydraulic system solenoid valve of the present utility model;
Fig. 2 is the cleaning state hydraulic schematic diagram of hydraulic butterfly valve hydraulic system solenoid valve of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, to make advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus more explicit defining is made to protection domain of the present utility model.
Consult shown in Fig. 1 and Fig. 2, a kind of hydraulic butterfly valve hydraulic system solenoid valve that the utility model provides, comprise electrohydraulic control 1, electrohydraulic control 1 runs for controlling to perform oil cylinder 2, perform oil cylinder 2 to rotate for driving the open-shut device of butterfly valve, it also comprises first, second solenoid valve (3, 4), the A mouth of electrohydraulic control 1 is connected with the filler opening performing oil cylinder 2 through the first solenoid valve 3, the B mouth of electrohydraulic control 1 is connected with its A mouth through the second solenoid valve 4, when electrohydraulic control 1 is in working position, first solenoid valve 3 is positioned at left position, second solenoid valve 4 is positioned at right position, close and rinse oil circuit.When electrohydraulic control 1 is in cleaning position, the first solenoid valve 3 is positioned at right position, ensure that electrohydraulic control 1 misoperation can not occur in flushing process, and the second solenoid valve 4 is positioned at left position, and UNICOM rinses oil circuit and is used for rinsing electrohydraulic control.
Concrete, be also provided with a throttle valve 5 between the first solenoid valve 3 and the filler opening performing oil cylinder 2.The flow that throttle valve 5 is mainly used in hydraulic control oil is set, and then auxiliary shut-in time and the speed controlling butterfly valve valve.Preferably, first, second solenoid valve (3,4) is two position two-way valve.Preferably, in order to prevent electrohydraulic control 1 from hydraulic oil backflow phenomenon occurring in cleaning process, an one-way valve 7 between the return opening of electrohydraulic control 1 and fuel tank 6, is also provided with.
The utility model is cooperatively interacted by first, second solenoid valve (3,4) and electrohydraulic control 1, the degree of regulation of butterfly valve valve can not only be improved, and by first, second solenoid valve (3,4) electric dead electricity realizes to electrohydraulic control 1 on-line cleaning, eliminate the bite phenomenon that electrohydraulic control 1 occurs when switch motion, improve the efficiency of switch valve, reduce the cost of overhaul.
Above-described embodiment is the utility model preferably mode of execution; but mode of execution of the present utility model is not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present utility model and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection domain of the present utility model.
Claims (4)
1. a hydraulic butterfly valve hydraulic system solenoid valve, comprise electrohydraulic control (1), described electrohydraulic control (1) runs for controlling to perform oil cylinder (2), described execution oil cylinder (2) is rotated for driving the open-shut device of butterfly valve, it is characterized in that: also comprise first, second solenoid valve (3, 4), the A mouth of described electrohydraulic control (1) is connected through the filler opening of described first solenoid valve (3) with described execution oil cylinder (2), the B mouth of described electrohydraulic control (1) is connected with its A mouth through the second solenoid valve (4), when described electrohydraulic control (1) is in working position, described first solenoid valve (3) is positioned at left position, described second solenoid valve (4) is positioned at right position, when described electrohydraulic control (1) is in cleaning position, described first solenoid valve (3) is positioned at right position, described second solenoid valve (4) is positioned at left position.
2. hydraulic butterfly valve hydraulic system solenoid valve according to claim 1, is characterized in that: be also provided with a throttle valve (5) between described first solenoid valve (3) and the filler opening of described execution oil cylinder (2).
3. hydraulic butterfly valve hydraulic system solenoid valve according to claim 2, is characterized in that: first, second solenoid valve described (3,4) is two position two-way valve.
4. hydraulic butterfly valve hydraulic system solenoid valve according to claim 3, is characterized in that: be also provided with an one-way valve (7) between the return opening of described electrohydraulic control (1) and fuel tank (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520052797.XU CN204477450U (en) | 2015-01-26 | 2015-01-26 | Hydraulic butterfly valve hydraulic system solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520052797.XU CN204477450U (en) | 2015-01-26 | 2015-01-26 | Hydraulic butterfly valve hydraulic system solenoid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204477450U true CN204477450U (en) | 2015-07-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520052797.XU Expired - Fee Related CN204477450U (en) | 2015-01-26 | 2015-01-26 | Hydraulic butterfly valve hydraulic system solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204477450U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11346083B1 (en) | 2021-06-11 | 2022-05-31 | Caterpillar Inc. | Fluid flushing system for a hydraulic circuit of a work machine |
-
2015
- 2015-01-26 CN CN201520052797.XU patent/CN204477450U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11346083B1 (en) | 2021-06-11 | 2022-05-31 | Caterpillar Inc. | Fluid flushing system for a hydraulic circuit of a work machine |
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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: 20150715 Termination date: 20180126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |