CN206495848U - Redundancy-type electromagnetic relief valve - Google Patents
Redundancy-type electromagnetic relief valve Download PDFInfo
- Publication number
- CN206495848U CN206495848U CN201621461004.0U CN201621461004U CN206495848U CN 206495848 U CN206495848 U CN 206495848U CN 201621461004 U CN201621461004 U CN 201621461004U CN 206495848 U CN206495848 U CN 206495848U
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- Prior art keywords
- pilot valve
- valve
- solenoid pilot
- pressure regulation
- solenoid
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Abstract
The utility model discloses a kind of redundancy-type electromagnetic relief valve, it includes main valve, pressure regulation pilot valve and regulating hand wheel of pressure；Guide's hydraulic fluid port is provided with above the pressure regulation pilot valve, guide's hydraulic fluid port extends obliquely to be connected with the pressure regulating cavity of the pressure regulation pilot valve；The solenoid pilot valve of 3-position 4-way is additionally provided with above the pressure regulation pilot valve, the solenoid pilot valve bottom is provided with oil inlet, oil return opening and actuator port, the oil inlet of the solenoid pilot valve is connected with guide's hydraulic fluid port, the oil return opening of the solenoid pilot valve is connected with the oil back chamber of the pressure regulation pilot valve, the actuator port is sealed by the upper surface of the pressure regulation pilot valve, and valve rod two ends are respectively equipped with electromagnet inside the solenoid pilot valve.Any one of two electromagnet of the solenoid pilot valve obtain it is electric can control system pressure build pressure, another is standby, can be doubled with this redundancy-type electromagnetic relief valve service life of the present utility model, controlled failure rate reduction by 50 percent.
Description
Technical field
The utility model belongs to overflow valve technical field, and in particular to a kind of redundancy-type electromagnetic relief valve.
Background technology
Overflow valve as one of indispensable element in hydraulic system, be mainly used to regulating system pressure size and
Systems stabilisation pressure is in a certain value, and its application is very universal.Fig. 1~3 show a kind of electromagnetic relief valve, and it is by main valve 1, pressure regulation
Pilot valve 2, the solenoid pilot valve 3 of two-position three way, regulating hand wheel of pressure 4 are constituted.Wherein, pressure regulation pilot valve 2 is connected to main valve 1 and electromagnetism
Between pilot valve 3, regulating hand wheel of pressure 4 is arranged on the side of pressure regulation pilot valve 2 and is connected with the spring inside regulation pressure regulation pilot valve 2, adjusts
The ball valve that the pressure inner chamber of pilot valve 2 is connected by spring is divided into pressure regulating cavity and oil back chamber, and pressure regulation pilot valve 2 is provided with guide's hydraulic fluid port above
K, guide's hydraulic fluid port K extends straight down to be connected with the pressure regulating cavity of pressure regulation pilot valve 2.The bottom of main valve 1 is provided with oil inlet P and oil return
Mouth T, inside is provided with spring cavity, and oil inlet P gangs up the spring cavity of main valve 1, and oil inlet P also passes through damping hole and pressure regulation pilot valve 2
Pressure regulating cavity connection, oil return inlet T is upwardly extended connect with the oil back chamber of pressure regulation pilot valve 2, and the bottom of solenoid pilot valve 3 is provided with oil inlet
P1, oil return inlet T 1 and actuator port A and B, the oil back chamber of oil inlet P 1 and oil return inlet T 1 respectively with pressure regulation pilot valve 2 are connected,
Actuator port B and guide's hydraulic fluid port K is connected, and actuator port A is sealed by the upper surface of pressure regulation pilot valve.Its operation principle such as Fig. 4 institutes
Show, the hydraulic oil that oil inlet P is introduced is entered by the damping hole inside main valve 1 in the pressure regulating cavity of pressure regulation pilot valve 2, pressure is made
With the spring on regulating hand wheel of pressure 4, the stroke size adjustable springs bullet that adjusting handle 4 is passed through according to hydraulic pressure Type B half-bridge principle
Power size, and then the uninterrupted directly by ball valve to the pressure oil of the oil back chamber of pressure regulation pilot valve 2 is adjusted, and then play tune
Save the size of system pressure and the effect of voltage stabilizing.Make when electromagnet 3a obtains electric inside valve rod movement so that actuator port B with
Oil return inlet T 1 is not communicated with, and then pressure oil can not enter inside solenoid pilot valve 3 through guide's hydraulic fluid port K, can only overcome pressure regulation pilot valve
Spring force inside 2 and the oil back chamber for entering pressure regulation pilot valve 2 by ball valve, so that control system pressure builds pressure.And electromagnetism
When iron must not be electric, valve rod returns to initial position, and now actuator port B is communicated with oil return inlet T 1, and pressure oil can be through guide's hydraulic fluid port K
The oil back chamber of pressure regulation pilot valve 2 is flowed out in into solenoid pilot valve 3 through oil return inlet T 1 again, until by oil return inlet T outflow, being not required to
Overcome the contained spring elastic force of pressure regulation pilot valve 2 i.e. negotiable, and then control system pressure off-load.Electromagnetic relief valve is in hydraulic pressure system
In system in addition to the whole effects for playing overflow valve, electric control can also be used by the solenoid pilot valve 3 of two-position three way, make system unloaded
Or multistage pressure control is realized, to adapt to different off-load requirements.But limited electromagnetism by working condition when being due to system work
Iron is being obtained always to work under electricity condition, and working temperature is high, use time is long, therefore greatly examining of being subject to of electromagnet life-span
Test, it is bad that two-position three-way electromagnetic iron loss always occurs in use in electromagnetic relief valve so that actuator port B is communicated with oil return inlet T 1, is entered
And causing guide's hydraulic fluid port K to be communicated with the oil return inlet T 1 of solenoid pilot valve 3 makes the failure of system decompression, once so electromagnet damage must
It must shut down to change corresponding accessory, financial cost loss is very high for the equipment worked continuously.
Utility model content
Therefore, the utility model connects for the short influence of the fragile service life of electromagnet of electromagnetic relief valve in the prior art
The technical problem of continuous operation, it is therefore intended that a kind of redundancy-type electromagnetic relief valve of service life extension is provided.
Redundancy-type electromagnetic relief valve of the present utility model includes main valve (1), pressure regulation pilot valve (2) and regulating hand wheel of pressure (4)；Institute
Main valve (1) bottom is stated provided with main valve oil inlet (P) and main valve oil return opening (T), main valve oil inlet (P) in the main valve (1) with setting
Spring cavity gang up；The pressure regulation pilot valve (2) located at the main valve (1) above, located at described adjust by the regulating hand wheel of pressure (4)
Pressure pilot valve (3) side is simultaneously connected with the spring of the pressure regulation pilot valve (2) inside, and pressure regulation pilot valve (2) inner chamber is by institute
The ball valve for stating spring connection is divided into pressure regulating cavity and oil back chamber, and the pressure regulating cavity passes through damping hole and the main valve oil inlet (P)
Connection, the main valve oil return opening (T) upwardly extends to be connected with the oil back chamber of the pressure regulation pilot valve (2)；The pressure regulation pilot valve
(2) guide's hydraulic fluid port (K) is provided with above, and guide's hydraulic fluid port (K) extends obliquely to be connected with the pressure regulating cavity；The pressure regulation guide
Valve (2) is additionally provided with the solenoid pilot valve (5) of 3-position 4-way above, and solenoid pilot valve (5) bottom is provided with solenoid pilot valve oil inlet
(P1), solenoid pilot valve oil return opening (T1) and solenoid pilot valve actuator port (A) and solenoid pilot valve actuator port (B), the electromagnetism
Pilot valve oil inlet (P1) is connected with guide's hydraulic fluid port (K), and the solenoid pilot valve oil return opening (T1) connects with the oil back chamber, institute
State solenoid pilot valve actuator port (A) and solenoid pilot valve actuator port (B) to be sealed by the upper surface of the pressure regulation pilot valve (2), institute
State the internal valve rod two ends of solenoid pilot valve (5) and be respectively equipped with electromagnet.
Preferably, when electromagnet described in two must not be electric, the valve rod of the solenoid pilot valve (5) is located at middle position, the electromagnetism
The solenoid pilot valve oil inlet (P1) of pilot valve is connected with solenoid pilot valve oil return opening (T1)；When any electromagnet obtains electric, the electricity
The valve rod of magnetic conductance valve (5) moves to side, and solenoid pilot valve oil inlet (P1) and corresponding solenoid pilot valve actuator port (A) or electromagnetism are led
Valve actuator port (B) is connected, solenoid pilot valve oil return opening (T1) and another solenoid pilot valve actuator port (B) or solenoid pilot valve working oil
Mouth (A) connection.
Because the solenoid pilot valve oil inlet (P1) of guide's hydraulic fluid port (K) and the solenoid pilot valve is connected, on-position with
Guide's hydraulic fluid port of existing electromagnetic relief valve is different from actuator port on-position, plus man-hour requirement is to solenoid pilot valve or pressure regulation
The structure of pilot valve is adjusted, the utility model be by guide's hydraulic fluid port (K) be processed into two dimension it is skewed.
Preferably, pressure regulation pilot valve (2) side is provided with guide's oil-through-hole (d), guide's oil-through-hole (d) and institute
Pressure regulating cavity connection is stated, guide's hydraulic fluid port (K) extends downwardly connects with guide's oil-through-hole (d).With guide's hydraulic fluid port this described
Position be adjustable to directly adaptation market standard three-dimensional four-way solenoid pilot valve, without being tied to main valve and solenoid pilot valve
Change on structure.
Positive effect of the present utility model is：The utility model replaces original using the solenoid pilot valve of 3-position 4-way
Two-bit triplet solenoid pilot valve (5), with two electromagnet, when any one of two electromagnet obtains electric, the electromagnetism can be made
The valve rod of pilot valve (5) moves to side, and solenoid pilot valve oil inlet (P1) and corresponding solenoid pilot valve actuator port (A) or electromagnetism are led
Valve actuator port (B) is connected, solenoid pilot valve oil return opening (T1) and another solenoid pilot valve actuator port (B) or solenoid pilot valve working oil
Mouth (A) connection, and solenoid pilot valve actuator port (A) or solenoid pilot valve actuator port (B) are enclosed, therefore solenoid pilot valve oil-feed
Mouth (P1) and solenoid pilot valve oil return opening (T1) are also enclosed, and pressure oil cannot flow through the solenoid pilot valve (5) release, can control
System pressure builds pressure, be with the function that the electromagnetic relief valve control system pressure of original Single electromagnet builds pressure now as,
And operationally such as there is electromagnet failure and can automatically cut by electrical equipment control in redundancy-type electromagnetic relief valve of the present utility model
Change another electromagnet to work on, can be doubled with this redundancy-type electromagnetic relief valve service life of the present utility model, can
Fault rate reduction by 50 percent is controlled, productivity ratio also improves 30 percent, and during manufacture processing, only need to be first to the pressure regulation
Guide's hydraulic fluid port in pilot valve, which is processed into two-dimentional gradient, can be adapted to the main valve and solenoid pilot valve of existing standard, it is possible to decrease processing cost
Increase.
Brief description of the drawings
Fig. 1 is the schematic perspective view of existing electromagnetic relief valve；
Fig. 2 is the front view of existing electromagnetic relief valve；
Fig. 3 is the top view of existing electromagnetic relief valve；
Fig. 4 is the fundamental diagram of existing electromagnetic relief valve；
Fig. 5 is the schematic perspective view of redundancy-type electromagnetic relief valve of the present utility model；
Fig. 6 is the front view of redundancy-type electromagnetic relief valve of the present utility model；
Fig. 7 is the top view of pressure regulation pilot valve of the present utility model；
Fig. 8 is the profile in A-A faces in Fig. 7；
Fig. 9 is the profile in B-B faces in Fig. 7；
Figure 10 is the profile in C-C faces in Fig. 8；
Figure 11 is the fundamental diagram of redundancy-type electromagnetic relief valve of the present utility model.
Embodiment
The utility model is further described below with reference to specific embodiments and the drawings.
Fig. 5 and 6 show redundancy-type electromagnetic relief valve of the present utility model, and it includes main valve 1, pressure regulation pilot valve 2, pressure regulation
Handwheel 4 and solenoid pilot valve 5.
The bottom of main valve 1 is provided with main valve oil inlet (P) and oil return inlet T, main valve oil inlet (P) and the spring cavity set in main valve 1
Gang up.Pressure regulation pilot valve 2 above the main valve 1, regulating hand wheel of pressure 4 located at the side of pressure regulation pilot valve 2 and with inside pressure regulation pilot valve 2
Spring connection, the ball valve that the inner chamber of pressure regulation pilot valve 2 is connected by spring is divided into pressure regulating cavity and oil back chamber, and pressure regulating cavity passes through damping
Hole is connected with main valve oil inlet (P), and oil return inlet T is upwardly extended to be connected with the oil back chamber of pressure regulation pilot valve 2.Such as the institute of Fig. 7~10
Show, the side of pressure regulation pilot valve 2 is connected provided with a guide oil-through-hole d, guide's oil-through-hole d with the pressure regulating cavity of pressure regulation pilot valve 2, pressure regulation
Pilot valve 2 is provided with guide hydraulic fluid port K above, and guide's hydraulic fluid port K is extended obliquely downward to be connected with guide's oil-through-hole d.Solenoid pilot valve 5 is three
Position four-way solenoid pilot valve, above pressure regulation pilot valve 2, the bottom of solenoid pilot valve 5 provided with oil inlet P 1, oil return inlet T 1 and
Actuator port A and B, oil inlet P 1 and guide's hydraulic fluid port K are connected, and oil return inlet T 1 is connected with the oil back chamber of pressure regulation pilot valve 2, working oil
Mouth A and B is sealed by the upper surface of pressure regulation pilot valve 2.The inside valve rod two ends of solenoid pilot valve 5 are respectively equipped with electromagnet 5a and 5b, electricity
When magnet 5a and 5b must not be electric, the valve rod of solenoid pilot valve 5 is located at middle position, and oil inlet P 1 is connected with oil return inlet T 1；Electromagnet 5a
Or 5b, when obtaining electric, the valve rod of solenoid pilot valve moves to respective side, and oil inlet P 1 is connected with corresponding actuator port A or B, oil return inlet T 1
Connected with another actuator port B or A.
As shown in figure 11, when electromagnet 5a and 5b must not be electric, the valve rod of solenoid pilot valve 5 is located at middle position, electricity to operation principle
The oil inlet P 1 of magnetic conductance valve is connected with oil-out T1, and hydraulic oil can be directly through solenoid pilot valve 5 without overcoming pressure regulation guide
The spring force of valve 2, and then control system pressure release.When for example 5a obtains electric to any electromagnet of solenoid pilot valve 5, oil inlet P 1
Connected with corresponding actuator port A, and actuator port A is sealed by the upper surface of pressure regulation pilot valve, therefore P1 is also enclosed, together
When oil return inlet T 1 connect and be also enclosed with another actuator port B, now, hydraulic oil directly can not be circulated by solenoid pilot valve 5, only
The spring force of pressure regulation pilot valve 2 can be overcome and enter oil back chamber so as to flow through ball valve, therefore system pressure builds pressure, and another electromagnetism
Iron 5b is in stand-by state.When same reason electromagnet 5b obtains electric, oil inlet P 1 is connected with working oil B, and the He of oil return inlet T 1
Actuator port A is connected, and same system can build pressure, and electromagnet 5a is standby.Therefore when electromagnetic relief valve 5 is operationally as occurred
Electromagnet failure another standby electromagnet that can be automatically switched by electrical equipment control works on, of the present utility model with this
Redundancy-type electromagnetic relief valve service life can be doubled, controlled failure rate reduction by 50 percent, and productivity ratio also improves percentage
30.And during manufacture processing, guide's hydraulic fluid port K processing of pressure regulation pilot valve 2 need to can be only adapted in two-dimentional gradient existing
The main valve and solenoid pilot valve of standard, without carrying out the change in structure to main valve 1 and solenoid pilot valve 5, can reduce processing cost
Increase.
Claims (3)
1. a kind of redundancy-type electromagnetic relief valve, it includes main valve (1), pressure regulation pilot valve (2) and regulating hand wheel of pressure (4)；The main valve
(1) bottom is provided with main valve oil inlet (P) and main valve oil return opening (T), main valve oil inlet (P) and the spring set in the main valve (1)
Chamber is ganged up；Located at the main valve (1) above, the regulating hand wheel of pressure (4) is located at the pressure regulation pilot valve to the pressure regulation pilot valve (2)
(2) the side and spring internal with the pressure regulation pilot valve (2) is connected, pressure regulation pilot valve (2) inner chamber is connected by the spring
The ball valve connect is divided into pressure regulating cavity and oil back chamber, and the pressure regulating cavity is connected by damping hole with the main valve oil inlet (P), described
Main valve oil return opening (T) is upwardly extended to be connected with the oil back chamber of the pressure regulation pilot valve (2)；Characterized in that, the pressure regulation guide
Valve (2) is provided with guide's hydraulic fluid port (K) above, and guide's hydraulic fluid port (K) extends obliquely to be connected with the pressure regulating cavity；The pressure regulation is first
Pilot valve (2) is additionally provided with the solenoid pilot valve (5) of 3-position 4-way above, and solenoid pilot valve (5) bottom is provided with solenoid pilot valve oil inlet
(P1), solenoid pilot valve oil return opening (T1) and solenoid pilot valve actuator port (A) and solenoid pilot valve actuator port (B), the electromagnetism
Pilot valve oil inlet (P1) is connected with guide's hydraulic fluid port (K), and the solenoid pilot valve oil return opening (T1) connects with the oil back chamber, institute
State solenoid pilot valve actuator port (A) and solenoid pilot valve actuator port (B) to be sealed by the upper surface of the pressure regulation pilot valve (2), institute
State the internal valve rod two ends of solenoid pilot valve (5) and be respectively equipped with electromagnet.
2. redundancy-type electromagnetic relief valve as claimed in claim 1, it is characterised in that when electromagnet described in two must not be electric, institute
The valve rod for stating solenoid pilot valve (5) is located at middle position, the solenoid pilot valve oil inlet (P1) and solenoid pilot valve oil return opening of the solenoid pilot valve
(T1) connect；When any electromagnet obtains electric, the valve rod of the solenoid pilot valve (5) moves to side, solenoid pilot valve oil inlet
(P1) connected with corresponding solenoid pilot valve actuator port (A) or solenoid pilot valve actuator port (B), solenoid pilot valve oil return opening (T1) with
Another solenoid pilot valve actuator port (B) or solenoid pilot valve actuator port (A) connection.
3. redundancy-type electromagnetic relief valve as claimed in claim 1, it is characterised in that pressure regulation pilot valve (2) side is provided with
One guide's oil-through-hole (d), guide's oil-through-hole (d) connects with the pressure regulating cavity, and guide's hydraulic fluid port (K) extends downwardly and institute
State guide's oil-through-hole (d) connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621461004.0U CN206495848U (en) | 2016-12-29 | 2016-12-29 | Redundancy-type electromagnetic relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621461004.0U CN206495848U (en) | 2016-12-29 | 2016-12-29 | Redundancy-type electromagnetic relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206495848U true CN206495848U (en) | 2017-09-15 |
Family
ID=59802675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621461004.0U Expired - Fee Related CN206495848U (en) | 2016-12-29 | 2016-12-29 | Redundancy-type electromagnetic relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206495848U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167493A (en) * | 2017-11-30 | 2018-06-15 | 北京宇航系统工程研究所 | A kind of redundancy electric blasting valve |
| CN111271486A (en) * | 2020-03-01 | 2020-06-12 | 东莞海特帕沃液压科技有限公司 | Pressure reducing valve |
| CN112943732A (en) * | 2021-03-24 | 2021-06-11 | 北京航空航天大学 | Overflow valve with different opening and closing pressures |
| CN113521585A (en) * | 2021-06-01 | 2021-10-22 | 北京中金泰达电液科技有限公司 | Current indicator |
-
2016
- 2016-12-29 CN CN201621461004.0U patent/CN206495848U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167493A (en) * | 2017-11-30 | 2018-06-15 | 北京宇航系统工程研究所 | A kind of redundancy electric blasting valve |
| CN111271486A (en) * | 2020-03-01 | 2020-06-12 | 东莞海特帕沃液压科技有限公司 | Pressure reducing valve |
| CN112943732A (en) * | 2021-03-24 | 2021-06-11 | 北京航空航天大学 | Overflow valve with different opening and closing pressures |
| CN112943732B (en) * | 2021-03-24 | 2022-05-17 | 北京航空航天大学 | Overflow valve with different opening and closing pressures |
| CN113521585A (en) * | 2021-06-01 | 2021-10-22 | 北京中金泰达电液科技有限公司 | Current indicator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170915 Termination date: 20201229 |