CN104948790A - Rapid and stable direct-driving overflow valve - Google Patents
Rapid and stable direct-driving overflow valve Download PDFInfo
- Publication number
- CN104948790A CN104948790A CN201410115911.9A CN201410115911A CN104948790A CN 104948790 A CN104948790 A CN 104948790A CN 201410115911 A CN201410115911 A CN 201410115911A CN 104948790 A CN104948790 A CN 104948790A
- Authority
- CN
- China
- Prior art keywords
- valve
- stable
- overflow valve
- spool
- valve body
- 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.)
- Pending
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/06—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/04—Means in valves for absorbing fluid energy for decreasing pressure or noise level, the throttle being incorporated in the closure member
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a rapid and stable direct-driving overflow valve which comprises a valve body. The rapid and stable direct-driving overflow valve is characterized in that a valve element, an adjusting nut and a spring are included; the two sides of the valve body are provided with an oil inlet and an oil outlet respectively, the valve element is arranged in the valve body, the top end of the valve element is connected with the adjusting nut arranged at the top end of the valve body through the spring, and a through hole is formed in the bottom of the valve element and is in through connection with the oil inlet. According to the rapid and stable direct-driving overflow valve, the problems that in the prior art, an overflow valve is complex in structure, a valve element is prone to being damaged so that the better overflowing effect can not be achieved, and the overflow valve is not stable in running, prone to being damaged and short in service life are solved; the rapid and stable direct-driving overflow valve is simple in structure, stable in running, convenient to use, higher in safe reliability and sensitivity and long in service life.
Description
Technical field
The present invention relates to a kind of valve, particularly relate to a kind of direct-acting overflow valve of fast and stable.
Background technique
Relief valve is a kind of hydraulic pressure control valve, in hydraulic equipment, mainly play level pressure overflow effect, voltage stabilizing, system unloaded and safety protection effect.In metering pump flow restriction control system, metering pump provides constant flow rate.When system pressure increases, traffic demand can be made to reduce.Now relief valve is opened, and excess traffic is overflow oil sump tank, ensures relief valve inlet pressure, i.e. pump discharge pressure constant (valve port is often opened with pressure surge).Pressure stabilization function: relief valve is connected on oil circuit, relief valve produces back pressure, and moving element stationarity increases.System unloaded effect: the solenoid valve of the small flow that overflows in the remote control mouth serial connection of relief valve, when the solenoid is energized, the remote control mouth of relief valve leads to fuel tank, now oil hydraulic pump off-load.Relief valve now uses as unloading valve.Safety protection effect: during system worked well, valve closing.Open overflow when only having load to exceed the limit (system pressure exceedes set pressure) of regulation, carry out overload protection, make system pressure no longer increase (usually make the set pressure of relief valve higher than system Maximum operating pressure by 10% ~ 20%).And current structure of relief valve is complicated, and spool easily damages, and cannot play good overflow effect, and stable not when running, and easily damage, working life is shorter.
Summary of the invention
Complicated in order to solve structure of relief valve in prior art, and spool easily damages, good overflow effect cannot be played, and stable not when running, easy damage, the problem that working life is shorter, the invention provides a kind of structure simple, stable, easy to use, safety reliability is higher, and sensitivity is higher, the direct-acting overflow valve of the fast and stable that working life is longer.
In order to solve the problem, the technical solution used in the present invention is:
A kind of direct-acting overflow valve of fast and stable, comprise valve body, it is characterized in that: also comprise spool, adjusting nut and spring, filler opening and return opening is respectively arranged with in valve body both sides, spool is provided with in valve body, described spool top is connected with the adjusting nut being arranged on valve body top by spring, bottom spool, be provided with through hole, and described through hole is connected with filler opening is through.
The direct-acting overflow valve of aforesaid a kind of fast and stable, is characterized in that: described through hole is damping hole.
The direct-acting overflow valve of aforesaid a kind of fast and stable, is characterized in that: described adjusting nut is connected to valve body top by screw-thread fit.
The invention has the beneficial effects as follows: the direct-acting overflow valve of fast and stable of the present invention, control the pressure bottom spool preferably by damping hole, the unlatching of control spool that can be more stable, structure is simple, easy to use, the dislocation avoiding spool damages, and working life is longer.
Accompanying drawing explanation
Fig. 1 is the direct-acting overflow valve structural representation of fast and stable of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
As shown in Figure 1, a kind of direct-acting overflow valve of fast and stable, comprise valve body 7, spool 3, adjusting nut 1 and spring 2, filler opening 4 and return opening 5 is respectively arranged with in valve body 7 both sides, spool 3 is provided with in valve body 7, described spool 3 top is connected with the adjusting nut 1 being arranged on valve body 7 top by spring 2, is provided with damping hole 6 bottom spool 3, and described damping hole 6 is connected with filler opening 4 is through.Described adjusting nut 1 is connected to valve body 2 top by screw-thread fit.
The direct-acting overflow valve of fast and stable of the present invention, the pressure oil in dependence system acts directly on spool 3 and balances each other, to control the keying of spool 2 with spring force etc.The damping hole 6 of pressure oil on spool 3 of filler opening 4 enters bottom spool 3, the lower end surface of spool 3 is just subject to the effect generation oil pressure of fluid, spring 2 acts on spool 3 and produces pretightening force, when oil pressure is less, when being less than pretightening force, close return opening 5, filler opening 4 and return opening 5 obstructed, not overflow, is normally off.Along with the rising of oil pressure, when oil pressure is greater than pretightening force, spool 3 moves, spring 2 is compressed, open return opening 5, filler opening 4 and return opening 5 are connected, and relief valve starts overflow, fluid overflows back fuel tank, now inlet pressure and spring force balance, and inlet pressure kept stable, in real application systems, rotating adjusting nut 1 regulates the pre compressed magnitude changing spring 2, and system can be made to obtain different cracking pressures.
In sum, the direct-acting overflow valve of fast and stable of the present invention, controls the pressure bottom spool preferably by damping hole 6, the unlatching of control spool that can be more stable, and structure is simple, easy to use, and the dislocation avoiding spool damages, and working life is longer.
More than show and describe basic principle of the present invention, major character and advantage.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (3)
1. the direct-acting overflow valve of a fast and stable, comprise valve body, it is characterized in that: also comprise spool, adjusting nut and spring, filler opening and return opening is respectively arranged with in valve body both sides, spool is provided with in valve body, described spool top is connected with the adjusting nut being arranged on valve body top by spring, bottom spool, be provided with through hole, and described through hole is connected with filler opening is through.
2. the direct-acting overflow valve of a kind of fast and stable according to claim 1, is characterized in that: described through hole is damping hole.
3. the direct-acting overflow valve of a kind of fast and stable according to claim 2, is characterized in that: described adjusting nut is connected to valve body top by screw-thread fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410115911.9A CN104948790A (en) | 2014-03-26 | 2014-03-26 | Rapid and stable direct-driving overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410115911.9A CN104948790A (en) | 2014-03-26 | 2014-03-26 | Rapid and stable direct-driving overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104948790A true CN104948790A (en) | 2015-09-30 |
Family
ID=54163696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410115911.9A Pending CN104948790A (en) | 2014-03-26 | 2014-03-26 | Rapid and stable direct-driving overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104948790A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438549A (en) * | 2016-12-08 | 2017-02-22 | 燕山大学 | Direct-acting overflow valve |
| CN110296116A (en) * | 2019-04-03 | 2019-10-01 | 成都航天烽火精密设备制造有限责任公司 | A kind of thread cartridge overflow valve based on Halbach array magnetic patch |
-
2014
- 2014-03-26 CN CN201410115911.9A patent/CN104948790A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438549A (en) * | 2016-12-08 | 2017-02-22 | 燕山大学 | Direct-acting overflow valve |
| CN106438549B (en) * | 2016-12-08 | 2018-02-09 | 燕山大学 | A kind of direct-acting overflow valve |
| CN110296116A (en) * | 2019-04-03 | 2019-10-01 | 成都航天烽火精密设备制造有限责任公司 | A kind of thread cartridge overflow valve based on Halbach array magnetic patch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150930 |
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| WD01 | Invention patent application deemed withdrawn after publication |