CN202510439U - Stacked proportional electromagnetic overflow valve - Google Patents
Stacked proportional electromagnetic overflow valve Download PDFInfo
- Publication number
- CN202510439U CN202510439U CN2012200119869U CN201220011986U CN202510439U CN 202510439 U CN202510439 U CN 202510439U CN 2012200119869 U CN2012200119869 U CN 2012200119869U CN 201220011986 U CN201220011986 U CN 201220011986U CN 202510439 U CN202510439 U CN 202510439U
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- CN
- China
- Prior art keywords
- valve
- spring
- needle
- seat
- spool
- 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
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Abstract
The utility model discloses a stacked proportional electromagnetic overflow valve, comprising a valve body. The valve body is provided with a valve housing and a sleeve pipe, and the valve housing is provided with a valve core, a main spring and a needle valve seat. The valve core is connected to the main spring. The sleeve pipe is provided with a needle valve, an adjusting spring and a spring seat in order. The needle valve is arranged on the needle valve seat. The valve body is provided with a proportional electromagnet, adjacent to one end of the spring seat. The proportional electromagnet is arranged on a stacked overflow valve, forming a new stacked overflow valve. Through the regulation and control of the proportional electromagnet and the control of the needle valve and the spring, the regulation and control of an overflow point of the overflow valve can be more stable and accurate.
Description
Technical field
The utility model relates to a kind of relief valve, particularly a kind of overlapping ratio electromagnetic relief valve.
Background technique
At present, various types of stack relief valve valves are successfully applied to all trades and professions, and become constituent element important in the various device hydraulic system, in hydraulic equipment, mainly play level pressure overflow effect and safety protection effect.And its Flow-rate adjustment of stack relief valve in the past adopts manual tune, overflow poor stability during adjusting, and also degree of regulation is not high.
The model utility content
The technical problem that the utility model will solve is: for the stack relief valve Flow-rate adjustment that overcomes in the past adopts manual tune, problem such as overflow poor stability, degree of regulation be not high during adjusting provides a kind of overlapping ratio electromagnetic relief valve.
The utility model solves the technological scheme that its technical problem adopted: a kind of overlapping ratio electromagnetic relief valve; Have valve body, be provided with valve pocket and sleeve pipe in the valve body, be provided with spool, main spring and pintle valve seat in the valve pocket; Spool connects main spring; Be provided with needle-valve, Regulation spring and spring seat in the sleeve pipe successively, needle-valve is installed on the pintle valve seat, it is characterized in that: described valve body is provided with proportion electro-magnet near spring seat one end.
Be provided with first O-ring seals with the valve body contact position on the described proportion electro-magnet.
Described valve pocket outside is equipped with second O-ring seals and the 3rd O-ring seals respectively.
The beneficial effect of the utility model is: through with proportion electro-magnet and be installed on the overlapping relief valve; Form a kind of new overlapping relief valve; The regulation and control of passing ratio electromagnet, and the control of needle-valve and spring, the flooding point regulation and control that make relief valve are more steadily with meticulous.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the graphic symbol of the utility model overlapping ratio electromagnetic relief valve;
Among the figure:
1, valve body; 2, valve pocket; 3, spool; 4, pintle valve seat; 5, needle-valve; 6, sleeve pipe; 7, proportion electro-magnet; 8, first O-ring seals; 9, spring seat; 10, Regulation spring; 11, second O-ring seals; 12, main spring; 13, the 3rd O-ring seals.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further specified.
As shown in Figure 1, a kind of overlapping ratio electromagnetic relief valve has valve body 1; Be provided with valve pocket 2 and sleeve pipe 6 in the valve body 1; Be provided with spool 3, main spring 12 and pintle valve seat 4 in the valve pocket 2, spool 3 connects main spring 12, is provided with needle-valve 5, Regulation spring 10 and spring seat 9 in the sleeve pipe 6 successively; Needle-valve 5 is installed on the pintle valve seat 4; Described valve body 1 is provided with proportion electro-magnet 7 near spring seat 9 one ends, is provided with first O-ring seals 8 with valve body 1 contact position on the proportion electro-magnet 7, and valve pocket 2 outsides are equipped with second O-ring seals 11 and the 3rd O-ring seals 13 respectively.
Like Fig. 1, shown in 2, the described overlapping ratio of the utility model embodiment electromagnetic relief valve has A, B, P, four passwaies of T, and they communicate with other Sandwich plate valve is corresponding up and down respectively; When the P mouth is Sandwich plate valve pressure oil passage; This overlapping of pressure oil input ratio electromagnetic relief valve P mouth flows out from the P1 mouth, because spool 3 left ends are communicated with the P-P1 runner; So the pressure oil in the P-P1 runner produces pressure to the spool left end; When pressure oil produced pressure less than the thrust of 12 pairs of spool 3 right-hand members of main spring to spool 3 left ends, spool 3 did not move, spool 3 drowning the through hole in the middle of the valve pocket 2; Oil in the P-P1 runner can't flow into the T1 runner through the through hole in the middle of the valve pocket 2, and this moment, overflow did not take place the T1 runner.When pressure oil produces pressure greater than the thrust of 12 pairs of spool 3 right-hand members of main spring to spool 3 left ends; Spool 3 moves right; Thereby make the through hole in the middle of T1 runner and the valve pocket 2 expose the spool left end; A part of pressure oil in the P-P1 runner is gone into the T mouth from the orifice flow on the valve pocket 2, and the pressure oil in the P-P1 runner obtains shunting, produces the overflow effect.Therefore select for use different main springs can produce different elasticity pressure, obtain different overflow origination points.
The effect of proportion electro-magnet is: flow into spool right side cavity because have an aperture, the hydraulic oil in the P-P1 runner to have sub-fraction to pass through this aperture in the middle of the spool 3, and needle-valve 5 is produced thrust.When the hydraulic fluid pressure in the P-P1 runner was low, overflow did not take place in the TI passage, if proportion electro-magnet 7 is not worked; The thrust of needle-valve 3 conditioned springs 10 is less; When P mouth oil pressure is low, still has little pressure oil and push needle-valve 5 open, from the aperture inflow T1 mouth on sleeve pipe 6 limits through spool 3 opposite side internal cavities; It is slack-off that the oil pressure variation is reduced, and played the effect of when low pressure, stablizing oil pressure in the P-P1 runner.If proportion electro-magnet 7 work, the thrust of needle-valve 3 conditioned springs 10 is bigger, and little pressure oil is difficult for pushing open needle-valve 5 and flows to the T1 passage through behind the spool 3 opposite side internal cavities.And the oil pressure of working as the P mouth progressively raises, and spool 3 moves right, when the apertures in the middle of the spool 3 move past the through hole of T1 mouth connection valve pocket 2; P-P1 runner and T1 mouth are connected, and overflow takes place suddenly the T1 passage, because the oil pressure of P mouth raises; Have a spot of pressure oil and push needle-valve 5 open through spool 3 opposite side internal cavities; From overlapping the aperture on the tube edge, flow to the T1 passage, make the oil pressure variation of P-P1 runner reduce slack-off; Thereby slowed down the overflow sudden change of T1 runner, realized the stationarity of relief valve at flooding process.
First O-ring seals 9 and second, third O- ring seals 11,13 of valve pocket 2 outer of the proportion electro-magnet 7 ends dress of the described overlapping ratio of the utility model embodiment electromagnetic relief valve; Can effectively overlapping ratio electromagnetic relief valve pressure inside oil be enclosed in the inside of valve, prevent that hydraulic oil from leaking.
Claims (3)
1. overlapping ratio electromagnetic relief valve; Have valve body, be provided with valve pocket and sleeve pipe in the valve body, be provided with spool, main spring and pintle valve seat in the valve pocket; Spool connects main spring; Be provided with needle-valve, Regulation spring and spring seat in the sleeve pipe successively, needle-valve is installed on the pintle valve seat, it is characterized in that: described valve body is provided with proportion electro-magnet near spring seat one end.
2. overlapping ratio electromagnetic relief valve according to claim 1 is characterized in that: be provided with first O-ring seals with the valve body contact position on the described proportion electro-magnet.
3. overlapping ratio electromagnetic relief valve according to claim 1 is characterized in that: described valve pocket outside is equipped with second O-ring seals and the 3rd O-ring seals respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200119869U CN202510439U (en) | 2012-01-12 | 2012-01-12 | Stacked proportional electromagnetic overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200119869U CN202510439U (en) | 2012-01-12 | 2012-01-12 | Stacked proportional electromagnetic overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202510439U true CN202510439U (en) | 2012-10-31 |
Family
ID=47062929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200119869U Expired - Fee Related CN202510439U (en) | 2012-01-12 | 2012-01-12 | Stacked proportional electromagnetic overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202510439U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185253A (en) * | 2018-10-22 | 2019-01-11 | 陈少同 | A kind of electromagnetic relief valve |
-
2012
- 2012-01-12 CN CN2012200119869U patent/CN202510439U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185253A (en) * | 2018-10-22 | 2019-01-11 | 陈少同 | A kind of electromagnetic relief valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121031 Termination date: 20160112 |