CN202483980U - Pressure flow linkage valve - Google Patents
Pressure flow linkage valve Download PDFInfo
- Publication number
- CN202483980U CN202483980U CN2012200871583U CN201220087158U CN202483980U CN 202483980 U CN202483980 U CN 202483980U CN 2012200871583 U CN2012200871583 U CN 2012200871583U CN 201220087158 U CN201220087158 U CN 201220087158U CN 202483980 U CN202483980 U CN 202483980U
- Authority
- CN
- China
- Prior art keywords
- pressure
- oil
- piston assembly
- valve
- cavity
- 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 - Lifetime
Links
Images
Landscapes
- Safety Valves (AREA)
Abstract
The utility model discloses a pressure flow linkage valve, belonging to the technical field of a control valve. The pressure flow linkage valve is characterized in that a valve cavity is internally and coordinately provided with a piston assembly which is matched with a valve cavity in a sealing and sliding manner; the piston assembly is provided with an oil introducing groove; the oil introducing groove is communicated with an oil inlet and an oil outlet in a valve body; one end of the piston assembly and the valve cavity forms a pressure oil cavity; the pressure oil cavity is communicated with the system pressure oil inlet which is arranged in the valve body; the other end of the piston assembly is connected with a pressure regulation spring; the external end of the pressure regulation spring is connected with a pressure regulation bolt; and the pressure regulation bolt is in locked connection with the valve body through a locking nut. The pressure flow linkage valve has a simple structure and is smart in design and is in series connection with an oil intake pipe of an oil cylinder; when the oil intake pipe supplies oil to the oil cylinder, the pressure of the system is established, and the piston assembly is moved to the reverse direction of the acting force of the pressure as the pressure in the pressure oil cavity is increased; the higher the system pressure is, the larger the displacement distance of the piston assembly is, the slower the pushing of the piston is, thus the intake oil flow is reduced, and the motion speed of the oil cylinder is controlled.
Description
Technical field
The utility model belongs to the control valve technical field, is specially the pressure flow interstage valve.
Background technique
The pressure flow interstage valve belongs to a kind of flow control valve, and flow control valve is under the certain pressure difference, relies on the size that changes the resistance of restriction liquid to come the flow of control orifice, thereby regulates the valve class of executive component (oil hydraulic cylinder or oil hydraulic motor) movement velocity.The relevant report that does not have the pressure flow interstage valve at present.
The model utility content
To the problems referred to above that exist in the existing technology; The purpose of the utility model is to design the technological scheme that a kind of pressure flow interstage valve is provided; This pressure flow interstage valve is arranged on the oil inlet pipe of oil cylinder, the movement velocity of the flow control oil cylinder through control oil cylinder oil inlet pipe.
Described pressure flow interstage valve; Comprise valve body, it is characterized in that being equipped with in the valve body cavity and the piston assembly movingly of its sealed sliding, logical oil groove is set in the piston assembly; The oil inlet hole, the oil outlet that are provided with on logical oil groove and the valve body are communicated with; Piston assembly one end and valve body cavity constitute pressure oil cavity, and the system pressure oil inlet hole that is provided with on pressure oil cavity and the valve body is communicated with piston assembly the other end connection pressure regulating spring; The pressure regulating spring outer end connects pressure and regulates bolt, and pressure is regulated bolt and is connected with valve body locking through lock nut.
Described pressure flow interstage valve is characterized in that being equipped with seal ring on the outer wall of piston assembly.
Described pressure flow interstage valve is characterized in that being provided with between logical oil groove, the oil inlet hole oil-feed flow change chamber.
Described pressure flow interstage valve is characterized in that being provided with between logical oil groove, the oil outlet fuel-displaced flow change chamber.
Described pressure flow interstage valve is characterized in that described logical oil groove is a circular groove that is arranged in the piston assembly.
Described pressure flow interstage valve is characterized in that the piston assembly the other end is connected through spring bearer plate and pressure regulating spring.
Above-mentioned pressure flow interstage valve, simple in structure, be skillfully constructed; Its serial connection is arranged on the oil inlet pipe of oil cylinder, and oil inlet pipe begins toward the oil cylinder oil-feed, and system begins build-up pressure; The pressure samples oil pipe is gone into pressure oil cavity with oil pressure, and piston assembly is moved to the pressure regulating spring active force along with the increase of pressure in the pressure oil cavity in the other direction, and system pressure is big more; The piston assembly mobile position is big more, and the flow of oil cylinder oil inlet pipe is along with minimizing, and system pressure is big more; Piston presses down slow more, thus the movement velocity of control oil cylinder.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the utility model concrete structure schematic representation;
Fig. 3 is the strength test machine test curve that has been connected in series the utility model;
Among the figure: 1-oil inlet hole, 2-oil-feed flow change chamber, the logical oil groove of 3-, 4-piston assembly, 5-lock nut, 6-pressure are regulated bolt, 7-crosses spring bearer plate, 8-pressure regulating spring, the fuel-displaced flow change of 9-chamber, 10-oil outlet, 11-seal ring, 12-pressure oil cavity, 13-system pressure oil inlet hole, 14-valve body.
Embodiment
Below in conjunction with Figure of description the utility model is described further.
As shown in the figure, this pressure flow interstage valve comprises valve body 14; Be equipped with in valve body 14 cavitys and the piston assembly 4 movingly of its sealed sliding; Logical oil groove 3 is set in the piston assembly 4, and the oil inlet hole 1, the oil outlet 10 that are provided with on logical oil groove 3 and the valve body 14 are communicated with piston assembly 4 one ends and valve body 14 cavitys formation pressure oil cavity 12; The system pressure oil inlet hole 13 that is provided with on pressure oil cavity 12 and the valve body 14 is communicated with; Piston assembly 4 the other ends are connected through spring bearer plate 7 and pressure regulating spring 8, and pressure regulating spring 8 outer ends connect pressure and regulate bolt 6, and pressure is regulated bolt 6 and is connected with valve body 14 lockings through lock nut 5.Be equipped with an above seal ring 11 on the outer wall of piston assembly 4, sealing circle 11 valve bodies 14 cavity inner walls are sealed and matched.Described logical oil groove 3 is for being arranged on the circular groove in the piston assembly 4; Oil-feed flow change chamber 2 is set between logical oil groove 3, the oil inlet hole 1; Fuel-displaced flow change chamber 9 is set between logical oil groove 3, the oil outlet 10; Oil in the oil inlet pipe gets into logical oil groove 3 from oil inlet hole 1, oil-feed flow change chamber 2, gets in the oil cylinder through fuel-displaced flow change chamber 9, oil outlet 10 then.Described oil-feed flow change chamber 2, fuel-displaced flow change chamber 9 are the triangle cavity, and being arranged to this structure main cause is that leg-of-mutton variable is non-linear, gets over Gao Yuexiao, and the variable of oil cylinder oil inlet pipe flow is more little, thus the movement velocity of control oil cylinder; The another one effect is for easy to process.
This pressure flow interstage valve serial connection is arranged on the oil inlet pipe of oil cylinder, and oil inlet pipe begins toward the oil cylinder oil-feed, and system begins build-up pressure; The pressure samples oil pipe is gone into pressure oil cavity 13 with oil pressure, and piston assembly 4 is moved to pressure regulating spring 8 active forces along with the increase of pressure in the pressure oil cavity 13 in the other direction, and system pressure is big more; Piston assembly 4 mobile positions are big more, and the flow of oil cylinder oil inlet pipe is along with minimizing, and system pressure is big more; Piston presses down slow more, thus the movement velocity of control oil cylinder.The oil cylinder that this serial connection is provided with the pressure flow interstage valve can be used for the strength test machine; In the moment of test block fracture; The critical zone time lengthening of the weighing sensor response on the strength test machine makes weighing sensor have time enough to do reflection, has improved testing precision greatly.
Claims (6)
1. pressure flow interstage valve; Comprise valve body (14); It is characterized in that being equipped with in valve body (14) cavity and the piston assembly (4) movingly of its sealed sliding; Logical oil groove (3) is set in the piston assembly (4), and logical oil groove (3) is gone up the oil inlet hole (1), the oil outlet (10) that are provided with valve body (14) and is communicated with, and piston assembly (4) one ends and valve body (14) cavity constitute pressure oil cavity (12); Pressure oil cavity (12) is gone up the system pressure oil inlet hole (13) that is provided with valve body (14) and is communicated with; Piston assembly (4) the other end connects pressure regulating spring (8), and pressure regulating spring (8) outer end connects pressure and regulates bolt (6), and pressure is regulated bolt (6) and is connected with valve body (14) locking through lock nut (5).
2. pressure flow interstage valve as claimed in claim 1 is characterized in that being equipped with seal ring (11) on the outer wall of piston assembly (4).
3. pressure flow interstage valve as claimed in claim 1 is characterized in that being provided with between logical oil groove (3), the oil inlet hole (1) oil-feed flow change chamber (2).
4. pressure flow interstage valve as claimed in claim 1 is characterized in that being provided with between logical oil groove (3), the oil outlet (10) fuel-displaced flow change chamber (9).
5. pressure flow interstage valve as claimed in claim 1 is characterized in that described logical oil groove (3) is for being arranged on the circular groove in the piston assembly (4).
6. pressure flow interstage valve as claimed in claim 1 is characterized in that piston assembly (4) the other end is connected through spring bearer plate (7) and pressure regulating spring (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200871583U CN202483980U (en) | 2012-03-09 | 2012-03-09 | Pressure flow linkage valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200871583U CN202483980U (en) | 2012-03-09 | 2012-03-09 | Pressure flow linkage valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202483980U true CN202483980U (en) | 2012-10-10 |
Family
ID=46958406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200871583U Expired - Lifetime CN202483980U (en) | 2012-03-09 | 2012-03-09 | Pressure flow linkage valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202483980U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588374A (en) * | 2012-03-09 | 2012-07-18 | 浙江捷姆轴承有限公司 | Pressure flux linkage valve |
-
2012
- 2012-03-09 CN CN2012200871583U patent/CN202483980U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588374A (en) * | 2012-03-09 | 2012-07-18 | 浙江捷姆轴承有限公司 | Pressure flux linkage valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201653131U (en) | Hydraulic lifting system for walking beam of large-sized walking beam furnace | |
| CN105437396B (en) | Mixing pump control floating weight hydraulic system | |
| CN201953731U (en) | Multi-cylinder synchronous operation control system | |
| CN201531483U (en) | Single-acting fast closing/double-acting boosting hydraulic cylinder | |
| CN101870160A (en) | Pump-valve compound control hydraulic system for injection molding machine and control method thereof | |
| CN201645777U (en) | Pump-valve composite control hydraulic system for injection molding machine | |
| CN104029721B (en) | Loader hydraulic transfer | |
| CN202483980U (en) | Pressure flow linkage valve | |
| CN105317766A (en) | Integrated hydraulic open-close machine | |
| CN104132023A (en) | Controllable variable-section hydraulic cylinder and hydraulic control system and method therefor | |
| CN107883028B (en) | The ratio one-way flow valves of double-direction control | |
| CN108775431A (en) | Balanced valve | |
| CN205977849U (en) | Hydraulic cylinder synchronous operation mechanism | |
| CN205277983U (en) | Differential pneumatic cylinder | |
| CN201650894U (en) | Controllable high pressure and large flow generating device | |
| CN102304931B (en) | Hydraulic energy-saving control system and method for loader movable arm | |
| CN102588374A (en) | Pressure flux linkage valve | |
| CN203230677U (en) | Automatic oil supplementing system of closed hydraulic cargo winch | |
| CN202125478U (en) | Hydraulic valve bank for shearing machine | |
| CN205918675U (en) | Controlling means for A4VSO axial plunger pump | |
| CN201184387Y (en) | Magnetic current change damper capable of regulating and controlling damp | |
| CN204041421U (en) | Plunger pump packing_seal pressure compensator | |
| CN203926176U (en) | Integrated hydraulic hoists | |
| CN202579405U (en) | Multi-way valve controlled by full static pile pressing-in machine system | |
| CN206257341U (en) | The electro-hydraulic execution equipment of intelligence |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121010 |
|
| CX01 | Expiry of patent term |