CN204113788U - The Embedded shunting relief valve of a kind of shuttle valve - Google Patents
The Embedded shunting relief valve of a kind of shuttle valve Download PDFInfo
- Publication number
- CN204113788U CN204113788U CN201420501423.7U CN201420501423U CN204113788U CN 204113788 U CN204113788 U CN 204113788U CN 201420501423 U CN201420501423 U CN 201420501423U CN 204113788 U CN204113788 U CN 204113788U
- Authority
- CN
- China
- Prior art keywords
- valve
- relief valve
- main relief
- shuttle
- oil
- 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
- 239000002243 precursor Substances 0.000 claims abstract description 23
- 239000012530 fluid Substances 0.000 claims abstract description 15
- 239000000945 filler Substances 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 6
- 238000003754 machining Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
Landscapes
- Safety Valves (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model announces the Embedded shunting relief valve of a kind of shuttle valve, belongs to hydrovalve technical field.Comprise the main relief valve primarily of valve body, main relief valve spring, main relief valve valve rod and screw plug composition; Shuttle valve is built-in with in described main relief valve valve rod left part, described valve body has the load hydraulic fluid port LS1 being communicated to shuttle valve one end filler opening and the load hydraulic fluid port LS2 being communicated to shuttle valve the other end filler opening, and main relief valve valve rod left end has the oilhole being communicated with oil outlet in the middle of main relief valve left end spring chamber and shuttle valve; At main relief valve spring terminal, the precursor overflow valve being communicated to main relief valve spring chamber is installed.The utility model compact structure, cost is low, fitting operation is convenient, adopt the method that will the shuttle valve of load pressure signal selected to embed multi-way valve oil-feed connection shunting relief valve, realize simplifying multi-way valve oil circuit, reduce valve body difficulty of processing and cost, avoid load feedback oil circuit long simultaneously, cause load feedback signal distortion.
Description
Technical field
The present invention relates to a kind of hydrovalve, specifically the Embedded shunting relief valve of a kind of shuttle valve.
Background technique
Load sensitive system is a kind of energy-saving hydraulic system being widely used in engineering machinery, vehicle and other machineries at present.For Constant Pump System, want completion system for the receptance of load, shunting relief valve need be added at oil-feed connection, need to add shuttle valve in work connection and the maximum pressure of actuator port is fed back to shunting relief valve spring chamber, LS load feedback oil circuit is longer, causes feedback signal distortion, thus causes system reliability poor, work after connection adds shuttle valve makes oil circuit complicated simultaneously, and difficulty of processing strengthens.
Summary of the invention
For solving the problems of the technologies described above, the invention provides the Embedded shunting relief valve of a kind of shuttle valve, thus simplify oil circuit, reduce valve body difficulty of processing, reduce feedback signal distortion simultaneously.
The present invention is achieved through the following technical solutions: the Embedded shunting relief valve of a kind of shuttle valve, comprises primarily of valve body and the main relief valve being arranged on the main relief valve spring in valve body, main relief valve valve rod and screw plug composition from left to right successively; Described valve body has oil inlet P and oil return inlet T, main relief valve valve rod has the oil groove and the oil duct being communicated with oil inlet P and main relief valve valve rod right-hand member oil pocket that can be communicated with oil inlet P and oil return inlet T;
Shuttle valve is built-in with in described main relief valve valve rod left part, described valve body has the load hydraulic fluid port LS1 being communicated to shuttle valve one end filler opening and the load hydraulic fluid port LS2 being communicated to shuttle valve the other end filler opening, and main relief valve valve rod left end has the oilhole being communicated with oil outlet in the middle of main relief valve left end spring chamber and shuttle valve;
At main relief valve spring terminal, the precursor overflow valve being communicated to main relief valve spring chamber is installed.
It is further: in the oilhole of the main relief valve spring chamber of described connection and shuttle valve oil outlet, be provided with choke plug.
Combination seal pad is provided with between described screw plug and valve body.
Described precursor overflow valve comprises the precursor overflow valve valve seat being inserted to main relief valve spring terminal; In precursor overflow valve valve seat, adjusting screw, cone valve spring and cone valve are installed from left to right successively; Precursor overflow valve valve seat left end is also fixed with the nut coordinated with adjusting screw.
Sealing I is provided with between described adjusting screw and precursor overflow valve valve seat.
Sealing II is provided with between described precursor overflow valve valve seat and valve body.
The described each oil pocket of main relief valve valve rod and oil inlet and outlet and other element oil pockets, hydraulic fluid port all adopt machining oil duct to be connected.
During the work of oil-feed connection, by oil inlet P oil-feed, wherein a part of fluid enters the main relief valve valve rod right side (herein for right, need not change) end, the load feedback pressure of different operating connection enters into shuttle valve two ends by load hydraulic fluid port LS1 and load hydraulic fluid port LS2 and carries out pressure ratio comparatively, and larger load feedback pressure is drawn by shuttle valve, flows through choke plug and enters into main relief valve spring chamber, the pressure of opening making winner's relief valve is that induced pressure adds spring force, thus makes Constant Pump System more energy-conservation.Cone governor valve spring can set up main relief valve cracking pressure.
Advantage of the present invention: compact structure of the present invention, cost is low, fitting operation is convenient, adopt the method that will the shuttle valve of load pressure signal selected to embed multi-way valve oil-feed connection shunting relief valve, realize simplifying multi-way valve oil circuit, reduce valve body difficulty of processing and cost, avoid load feedback oil circuit long simultaneously, cause load feedback signal distortion; Precursor overflow valve is directly inserted to main relief valve spring terminal, makes overall structure compacter.
Accompanying drawing explanation
Structural representation of the present invention in Fig. 1;
Fig. 2 is main relief valve stem structure schematic diagram in Fig. 1.
In figure: 1, adjusting screw; 2, precursor overflow valve valve seat; 3, main relief valve spring; 4, choke plug; 5, valve body; 6, screw plug; 7, combination seal pad; 8, main relief valve valve rod; 9, shuttle valve; 10, cone valve; 11, I is sealed; 12, II is sealed; 13, cone valve spring; 14, nut.
Embodiment
Be below a specific embodiment of the present invention, first the present invention is further illustrated by reference to the accompanying drawings.
As depicted in figs. 1 and 2, the Embedded shunting relief valve of a kind of shuttle valve, valve body 5 has a through hole, coordinates and be provided with main relief valve valve rod 8 in through hole; Through hole right-hand member is sealed by screw plug 6, is provided with combination seal pad 7 between screw plug 6 and valve body 5, is formed with hydraulic fluid chamber between screw plug 6 and main relief valve valve rod 8; Through hole left end installs a threaded insertion pilot relief valve, and main relief valve spring 3 is against between main relief valve valve rod 8 left side and precursor overflow valve, and main relief valve valve rod 8 forms main relief valve spring chamber.Valve body 5 has oil inlet P and oil return inlet T, main relief valve valve rod 8 has the oil groove that can be communicated with oil inlet P and oil return inlet T when main relief valve valve rod 8 moves to left, main relief valve valve rod 8 Shanghai has the oil duct being communicated with oil inlet P and main relief valve valve rod 8 right-hand member oil pocket.Shuttle valve 9 is built in main relief valve valve rod 8 left part, valve body 5 has the load hydraulic fluid port LS1 being communicated to shuttle valve 9 one end filler opening and the load hydraulic fluid port LS2 being communicated to shuttle valve 9 the other end filler opening, main relief valve valve rod 8 left end has the oilhole being communicated with main relief valve spring chamber and the middle oil outlet of shuttle valve 9, is provided with choke plug 4 in this oilhole.Precursor overflow valve valve seat 2 is inserted into valve body 5 through hole left end, is provided with adjusting screw 1, cone valve spring 13 and cone valve 10 in it successively, and cone valve 10 can be communicated with main relief valve spring chamber; Precursor overflow valve valve seat 2 left end is fixed with nut 14, and adjusting screw 1 is by the cooperation precession precursor overflow valve valve seat 2 of nut 14; Between adjusting screw 1 and precursor overflow valve valve seat 2, be provided with sealing I 11, between precursor overflow valve valve seat 2 and valve body 5, be provided with sealing II 12.The each oil pocket of main relief valve valve rod 8 and oil inlet and outlet and other element oil pockets, hydraulic fluid port all adopt machining oil duct to be connected.
Claims (7)
1. the Embedded shunting relief valve of shuttle valve, comprises primarily of valve body (5) and is arranged on the main relief valve that main relief valve spring (3) in valve body (5), main relief valve valve rod (8) and screw plug (6) form from left to right successively; (5) have oil inlet P and oil return inlet T to described valve body, main relief valve valve rod (8) have the oil groove and the oil duct being communicated with oil inlet P and main relief valve valve rod (8) right-hand member oil pocket that can be communicated with oil inlet P and oil return inlet T;
It is characterized in that:
Shuttle valve (9) is built-in with in described main relief valve valve rod (8) left part, described valve body (5) has the load hydraulic fluid port LS1 being communicated to shuttle valve (9) one end filler opening and the load hydraulic fluid port LS2 being communicated to shuttle valve (9) the other end filler opening, and main relief valve valve rod (8) left end has the oilhole being communicated with oil outlet in the middle of main relief valve left end spring chamber and shuttle valve (9);
At main relief valve spring terminal, the precursor overflow valve being communicated to main relief valve spring chamber is installed.
2. the Embedded shunting relief valve of a kind of shuttle valve according to claim 1, is characterized in that: in the oilhole of the main relief valve spring chamber of described connection and shuttle valve (9) oil outlet, be provided with choke plug (4).
3. the Embedded shunting relief valve of a kind of shuttle valve according to claim 1, is characterized in that: between described screw plug (6) and valve body (5), be provided with combination seal pad (7).
4. the Embedded shunting relief valve of a kind of shuttle valve according to claim 1, is characterized in that: described precursor overflow valve comprises the precursor overflow valve valve seat (2) being inserted to main relief valve spring terminal; Adjusting screw (1), cone valve spring (13) and cone valve (10) are installed successively from left to right in precursor overflow valve valve seat (2); Precursor overflow valve valve seat (2) left end is also fixed with the nut (14) coordinated with adjusting screw (1).
5. the Embedded shunting relief valve of a kind of shuttle valve according to claim 4, is characterized in that: between described adjusting screw (1) and precursor overflow valve valve seat (2), be provided with sealing I (11).
6. the Embedded shunting relief valve of a kind of shuttle valve according to claim 4, is characterized in that: between described precursor overflow valve valve seat (2) and valve body (5), be provided with sealing II (12).
7. the Embedded shunting relief valve of a kind of shuttle valve according to claim 1, is characterized in that: the described each oil pocket of main relief valve valve rod (8) and oil inlet and outlet and other element oil pockets, hydraulic fluid port all adopt machining oil duct to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420501423.7U CN204113788U (en) | 2014-09-02 | 2014-09-02 | The Embedded shunting relief valve of a kind of shuttle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420501423.7U CN204113788U (en) | 2014-09-02 | 2014-09-02 | The Embedded shunting relief valve of a kind of shuttle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204113788U true CN204113788U (en) | 2015-01-21 |
Family
ID=52331102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420501423.7U Expired - Lifetime CN204113788U (en) | 2014-09-02 | 2014-09-02 | The Embedded shunting relief valve of a kind of shuttle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204113788U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939766A (en) * | 2017-12-28 | 2018-04-20 | 邵立坤 | A kind of oil supplementation buffer valve |
| CN108061071A (en) * | 2018-01-23 | 2018-05-22 | 邵立坤 | A kind of plug-in bidirectional buffering overflow valve |
| CN108266431A (en) * | 2018-01-23 | 2018-07-10 | 邵立坤 | A kind of secondary pressure bidirectional relief valve |
-
2014
- 2014-09-02 CN CN201420501423.7U patent/CN204113788U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939766A (en) * | 2017-12-28 | 2018-04-20 | 邵立坤 | A kind of oil supplementation buffer valve |
| CN108061071A (en) * | 2018-01-23 | 2018-05-22 | 邵立坤 | A kind of plug-in bidirectional buffering overflow valve |
| CN108266431A (en) * | 2018-01-23 | 2018-07-10 | 邵立坤 | A kind of secondary pressure bidirectional relief valve |
| CN108061071B (en) * | 2018-01-23 | 2020-04-10 | 立信阀门集团有限公司 | Plug-in type bidirectional buffer overflow valve |
| CN108266431B (en) * | 2018-01-23 | 2020-06-26 | 江苏金晟元特种阀门股份有限公司 | A two-way pressure relief valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204003685U (en) | A kind of braking in a turn hydraulic system and engineering machinery | |
| CN204113788U (en) | The Embedded shunting relief valve of a kind of shuttle valve | |
| CN104029721B (en) | Loader hydraulic transfer | |
| CN104989690B (en) | Overload relief valve | |
| CN201776935U (en) | Hydraulic machine with two sets of hydraulic system structures | |
| CN203836279U (en) | Built-in pressure reducing valve | |
| CN204573403U (en) | One-way throttle pipe joint | |
| CN205918670U (en) | Beat sign indicating number hydraulic press hydraulic control system | |
| CN203321921U (en) | Pilot-operated type overflow valve | |
| CN203322413U (en) | Two-stage pressure unloading valve | |
| CN203321945U (en) | Hydraulic pump station | |
| CN103912534A (en) | Constant-difference overflow valve with unloading function | |
| CN208169229U (en) | A kind of hydraulic motor automatic variable valve | |
| CN208474211U (en) | A kind of Full-hydraulic braking apparatus filling liquid valve group and its control system | |
| CN203230645U (en) | Dual-energy-saving combination hydraulic valve | |
| CN204704184U (en) | Relief valve | |
| CN105422539A (en) | Two-circuit multi-way directional valve and in-parallel installation method of two-circuit multi-way directional valve with oil cylinders | |
| CN203822732U (en) | Pilot oil source control block | |
| CN204386973U (en) | A kind of hydrovalve of oil return circuit band auto-lock function | |
| CN205173091U (en) | Automatic restraining device of closed -type hydraulic system power | |
| CN203400566U (en) | Filter capable of achieving double-direction filtering | |
| CN204533022U (en) | A kind of pressure-gradient control valve be directly fixedly connected with commutator | |
| CN202646212U (en) | Double hydraulic control one-way valve | |
| CN206092555U (en) | Hydraulic pressure unloading device | |
| CN203412831U (en) | Renewable valve rod for hydraulic multipath valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150121 |
|
| CX01 | Expiry of patent term |