CN201795119U - Three-level electromagnetic reducing valve - Google Patents
Three-level electromagnetic reducing valve Download PDFInfo
- Publication number
- CN201795119U CN201795119U CN2010205421574U CN201020542157U CN201795119U CN 201795119 U CN201795119 U CN 201795119U CN 2010205421574 U CN2010205421574 U CN 2010205421574U CN 201020542157 U CN201020542157 U CN 201020542157U CN 201795119 U CN201795119 U CN 201795119U
- Authority
- CN
- China
- Prior art keywords
- valve
- reducing valve
- hydraulic
- level
- pilot valve
- 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
Links
Images
Landscapes
- Valve Housings (AREA)
Abstract
The utility model provides a three-level electromagnetic reducing valve, relates to an electromagnetic reducing valve and solves the problems of the overlarge volume of the conventional combined reducing valve, high filter precision requirement on the system by using an electric proportional reducing valve and high cost of the system. The three-level electromagnetic reducing valve of the utility model comprises a reducing valve (1), a hydraulic integrated block (2) and a multi-level electro-hydraulic priority valve (3). A priority cavity (1-2) of the reducing valve (1) is an empty cavity; the reducing valve (1) is connected with the multi-level electro-hydraulic priority valve (3) by the hydraulic integrated block (2); and a releasing flow passage (1-1) of the reducing valve (1) communicates with an inlet oil passage (3-1) of a guide valve (3-2) of the multi-level electro-hydraulic priority valve (3) through a connecting flow passage (2-1) of the hydraulic integrated block (2). The three-level electromagnetic reducing valve is applied in a hydraulic system.
Description
Technical field
The utility model relates to a kind of electromagnetic relief pressure valve, is specifically related to a kind of three grades of electromagnetic relief pressure valves.
Background technique
Realize the scheme of multi-step pressure reduction at present, the one, the reduction valve that utilizes a plurality of pilot valves and solenoid valve to make up, design proposal is reliable, but the more complicated that combines, volume is excessive.The 2nd, utilize electric proportional pressure-reducing valve, by different input values is set, carry out multi-stage pressure regulating, this scenario-frame is simple, but requires the filter precision height of system, be proportional control owing to what adopt, so cost is than higher.
The model utility content
The purpose of this utility model be for solve the volume problems of too that existing combination reduction valve exists and the filter precision that requires system that utilizes electric proportional pressure-reducing valve to exist is high and cost than problem of higher, and then provide a kind of three grades of electromagnetic relief pressure valves.
The technical solution of the utility model is: three grades of electromagnetic relief pressure valves comprise reduction valve, three grades of electromagnetic relief pressure valves also comprise hydraulic manifold block and multi-stage electro-hydraulic pilot valve, the first guide cavity of described reduction valve is vacant chamber, connect by hydraulic manifold block between described reduction valve and the multi-stage electro-hydraulic pilot valve, and the connection runner of the runner that leaks by hydraulic manifold block of reduction valve is communicated with the import oil duct of the pilot valve of multi-stage electro-hydraulic pilot valve.
The utility model compared with prior art has following effect: the loaded down with trivial details combination that the utility model has avoided a plurality of pilot valves and solenoid valve to carry out, and simple in structure, volume is little, has saved the space; The utility model has been simplified the inside oil duct of three grades of electromagnetic relief pressure valves in addition, and the system filtration required precision is low; The utility model is by the pilot valve of the selected setting pressure control of the switching of the electromagnet of multi-stage electro-hydraulic pilot valve, and control is simple, and is with low cost.
Description of drawings
Fig. 1 is an overall structure partial sectional view of the present utility model.
Embodiment
Embodiment one: present embodiment is described in conjunction with Fig. 1, three grades of electromagnetic relief pressure valves of present embodiment comprise reduction valve 1, three grades of electromagnetic relief pressure valves also comprise hydraulic manifold block 2 and multi-stage electro-hydraulic pilot valve 3, the first guide cavity 1-2 of described reduction valve 1 is vacant chamber, connect by hydraulic manifold block 2 between described reduction valve 1 and the multi-stage electro-hydraulic pilot valve 3, and the connection runner 2-1 of the runner 1-1 that leaks by hydraulic manifold block 2 of reduction valve 1 is communicated with the import oil duct 3-1 of the pilot valve 3-2 of multi-stage electro-hydraulic pilot valve 3.
Embodiment two: in conjunction with Fig. 1 present embodiment is described, the reduction valve 1 of present embodiment is a DR type reduction valve.So be provided with, be convenient to reduce the loop of system circuit pressure and steady oil sources.Other composition is identical with embodiment one with annexation.
Embodiment three: in conjunction with Fig. 1 present embodiment is described, the multi-stage electro-hydraulic pilot valve 3 of present embodiment is a DB3U multi-stage electro-hydraulic pilot valve.Reliable operation, stable performance so are set.Other composition is identical with embodiment one or two with annexation.
Claims (3)
1. three grades of electromagnetic relief pressure valves, it comprises reduction valve (1), it is characterized in that: three grades of electromagnetic relief pressure valves also comprise hydraulic manifold block (2) and multi-stage electro-hydraulic pilot valve (3), the first guide cavity (1-2) of described reduction valve (1) is vacant chamber, connect by hydraulic manifold block (2) between described reduction valve (1) and the multi-stage electro-hydraulic pilot valve (3), and the connection runner (2-1) of the runner that leaks (1-1) of reduction valve (1) by hydraulic manifold block (2) is communicated with the import oil duct (3-1) of the pilot valve (3-2) of multi-stage electro-hydraulic pilot valve (3).
2. three grades of electromagnetic relief pressure valves according to claim 1 is characterized in that: reduction valve (1) is a DR type reduction valve.
3. three grades of electromagnetic relief pressure valves according to claim 1 and 2 is characterized in that: multi-stage electro-hydraulic pilot valve (3) is a DB3U multi-stage electro-hydraulic pilot valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205421574U CN201795119U (en) | 2010-09-26 | 2010-09-26 | Three-level electromagnetic reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205421574U CN201795119U (en) | 2010-09-26 | 2010-09-26 | Three-level electromagnetic reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201795119U true CN201795119U (en) | 2011-04-13 |
Family
ID=43850027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205421574U Expired - Fee Related CN201795119U (en) | 2010-09-26 | 2010-09-26 | Three-level electromagnetic reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201795119U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697443A (en) * | 2016-04-29 | 2016-06-22 | 张作玮 | Pressure reducing valve |
-
2010
- 2010-09-26 CN CN2010205421574U patent/CN201795119U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697443A (en) * | 2016-04-29 | 2016-06-22 | 张作玮 | Pressure reducing valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202673874U (en) | Constant-pressure variable control system of load sensitive hydraulic pump | |
| CN102720711B (en) | Automatic-switch type load sensing hydraulic system | |
| EP2369067A3 (en) | Negative control type hydraulic system | |
| CN103899587A (en) | Synchronous jacking hydraulic control system | |
| CN104047931A (en) | Three-way pressure compensator assembly | |
| CN103573753B (en) | Transient test loop for hydraulic valve | |
| CN104533886A (en) | Non-load starting device and method for variable hydraulic pump | |
| CN103244492A (en) | Tee-joint pressure compensator of metering pump load-sensitive hydraulic system | |
| CN203906426U (en) | Three-stage logic combination valve for unloading of large hydraulic system | |
| CN105402182A (en) | Load sensing multi-way directional valve and hydraulic control system of loader | |
| CN201795119U (en) | Three-level electromagnetic reducing valve | |
| CN202833434U (en) | Hydraulic system and engineering machinery | |
| CN103244509A (en) | Tee-joint pressure compensator of metering pump load-sensitive hydraulic system | |
| CN202923545U (en) | Loading and unloading switching device and load-sensitive hydraulic system | |
| CN204175686U (en) | A kind of bender hydraulic system | |
| CN103174697A (en) | Hydraulic valve system with pressure compensation function | |
| CN103613035B (en) | A kind of winch hydraulic brake system with supercharging | |
| CN203516263U (en) | Hydraulic circuit device | |
| CN201155420Y (en) | Hydroturbine emergency stop device based on cartridge valve | |
| CN204692224U (en) | A kind of interflow control valve | |
| CN208442095U (en) | LEP electricity proportional load sensitive pump and hydraulic system | |
| CN102705305B (en) | Two-pump flowrate automatic control system | |
| CN203822732U (en) | Pilot oil source control block | |
| CN201269235Y (en) | Hydraulic energy-saving oil supply system of miniature hydraulic excavator | |
| CN201763584U (en) | High-performance remote automatic control axial plunger pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110413 Termination date: 20130926 |