CN201650908U - High-flow electrohydraulic switch valve - Google Patents
High-flow electrohydraulic switch valve Download PDFInfo
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- CN201650908U CN201650908U CN2010201170613U CN201020117061U CN201650908U CN 201650908 U CN201650908 U CN 201650908U CN 2010201170613 U CN2010201170613 U CN 2010201170613U CN 201020117061 U CN201020117061 U CN 201020117061U CN 201650908 U CN201650908 U CN 201650908U
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Abstract
The utility model discloses a high-flow electrohydraulic switch valve. The switch valve comprises a hydraulic control main valve and a control mechanism arranged on the main valve, wherein the hydraulic control main valve comprises a valve body, a valve core and a valve rod; two sides of the valve body are respectively provided with an oil inlet and an oil outlet and the valve body is internally provided with a valve seat that divides the valve body into an upper valve chest and a lower valve chest; the valve core is arranged at the lower part of the valve seat; and the lower end of the valve rod is connected with the valve core and the upper end of the valve rod penetrates out of the valve body to be connected with the control mechanism. The switch valve controls a piston of an oil cylinder through a 2-position 3-way electromagnetic valve to lift or descend, thus driving the valve rod to open or close the valve core, greatly improving the response speed and prolonging the service life. The switch valve can effectively meet the control requirement of a hydraulic coupler on high-flow low-pressure oil charge and discharge.
Description
Technical field
What the utility model related to fluid coupling advances the oil extraction control gear, more particularly, relates to a kind of big flow electro hydraulic on-off valve, and what this switch valve was applicable to fluid coupling advances oil extraction control.
Background technique
The work characteristics of fluid coupling is, working oil advance that discharge capacity is big, pressure is low and the variation of oil-filled amount is more frequent.Therefore, advancing the oil extraction control gear and must having very long working life of fluid coupling generally will reach more than 1,000 ten thousand times at least, could adapt to its frequent control action.And at present, common control valve on the market, though kind is a lot, as two position three-way valve etc., but the life-span of these control valves is all not long, usually only between 400,000～4,000,000 times, do not reach the control requirement that fluid coupling advances oil extraction far away, and also can't be suitable for big flow at all, fluid coupling that low-pressure, speed of response are fast advance oil extraction control.At present, the oil extraction control of advancing of fluid coupling waits by actuating motor or electrohydraulic servo system and realizes that because its structure is very complicated, reliability is lower, and operation and maintenance is all very inconvenient, thereby makes operating cost higher.
The model utility content
Low at the above-mentioned working life that exists in the prior art, can't satisfy control requirement and complex structure, shortcoming that operating cost is high, the purpose of this utility model provides a kind of big flow electro hydraulic on-off valve, simple in structure, the long service life of this switch valve, speed of response is fast, can satisfy the oil extraction of advancing of fluid coupling and control requirement.
For achieving the above object, the utility model adopts following technological scheme:
This big flow electro hydraulic on-off valve comprises hydraulic control main valve and the control mechanism of being located on the main valve, the hydraulic control main valve comprises valve body, spool and valve rod, the valve body both sides have filler opening and oil outlet, valve inner has the valve seat that valve body is divided into upper and lower valve pocket, spool is located at the valve seat bottom, the valve rod lower end is connected with spool, and the upper end passes valve body and is connected with control mechanism.
Described control mechanism comprises oil cylinder, first Returnning spring and hydraulic oil cylinder driving parts, and oil cylinder is located at the valve body upper end, and is connected with valve rod; First Returnning spring is located in the valve body, and the bottom of upper end and spool offsets, and lower end and valve body bottom interior wall offset; The hydraulic oil cylinder driving parts are located at the oil cylinder top.
Described oil cylinder comprises cylinder body, piston and second Returnning spring, cylinder body is connected at the valve body upper end, piston is located in the cylinder body, and cylinder body is divided into upper and lower cylinder chamber, the piston lower end is connected with the valve rod upper end, second Returnning spring is sheathed on the valve rod, and upper end and piston offset, and lower end and cylinder base inwall offset.
Described hydraulic oil cylinder driving parts are a two-position three way magnetic valve, three ends of two-position three way magnetic valve are communicated with oil inlet passage, upper cylinder half chamber drainback passage respectively and control oily passage, the other end of oil inlet passage and upper cylinder half chamber drainback passage all is communicated to outside oil sump, and the other end of controlling oily passage is communicated to the upper cylinder half chamber.
Described cylinder chamber down is communicated with down cylinder chamber drainback passage, and following cylinder chamber drainback passage one end is communicated to outside oil sump.
Described valve rod passes on the position of valve body and also is arranged with " O " RunddichtringO.
In technique scheme, big flow electro hydraulic on-off valve of the present utility model comprises hydraulic control main valve and the control mechanism of being located on the main valve, the hydraulic control main valve comprises valve body, spool and valve rod, the valve body both sides have filler opening and oil outlet, valve inner has the valve seat that valve body is divided into upper and lower valve pocket, spool is located at the valve seat bottom, and the valve rod lower end is connected with spool, and the upper end passes valve body and is connected with control mechanism.This switch valve is controlled the piston lifting of oil cylinder by two-position three way magnetic valve, thereby driving valve rod opens and closes spool, improved its speed of response greatly, and prolonged working life, can effectively satisfy fluid coupling big flow, low pressure advance oil extraction control requirement.
Description of drawings
Fig. 1 is the schematic diagram of big flow electro hydraulic on-off valve of the present utility model;
Fig. 2 is the structure sectional view of switch valve of the present utility model.
Embodiment
Further specify the technical solution of the utility model below in conjunction with drawings and Examples.
Please in conjunction with Fig. 1, shown in Figure 2, big flow electro hydraulic on-off valve 10 of the present utility model comprises hydraulic control main valve 11 and the control mechanism of being located on the main valve 12, and hydraulic control main valve 11 comprises valve body 111, spool 112 and valve rod 113.Valve body 111 both sides have the filler opening I of big latus rectum and oil outlet O, and (latus rectum is 40～80mm), the row that advances who is fit to low pressure, big flow, valve body 111 inside have the valve seat 114 that valve body 111 is divided into upper and lower valve pocket, spool 112 is located at valve seat 114 bottoms, valve rod 113 lower ends are connected with spool 112, and the upper end passes valve body 111 and is connected with control mechanism 12.Above-mentioned control mechanism 12 comprises oil cylinder, first Returnning spring 121 and hydraulic oil cylinder driving parts, oil cylinder is located at valve body 111 upper ends, comprise cylinder body 122, piston 123 and second Returnning spring 124, cylinder body 122 is connected and fixed is located at valve body 111 upper ends, piston 123 is located in the cylinder body 122, and cylinder body 122 is divided into upper and lower cylinder chamber 125,126, piston 123 lower ends are connected with valve rod 113 upper ends, second Returnning spring 124 is sheathed on the valve rod 113, and upper end and piston 123 offset, and lower end and cylinder body 122 bottom interior wall offset.First Returnning spring 121 is located in the valve body 111, and the upper end of first Returnning spring 121 is sheathed on spool 112 bottoms, and offsets with spool 112 bottoms, and the lower end of first Returnning spring 121 and valve body 111 bottom interior wall offset; The hydraulic oil cylinder driving parts are located at the oil cylinder top, and communicate with oil cylinder by manifold block 127.Above-mentioned hydraulic oil cylinder driving parts can adopt the two-position three way magnetic valve 13 of a high speed, three ends of this two-position three way magnetic valve 13 are communicated with oil inlet passage P, upper cylinder half chamber drainback passage T1 (see figure 1) respectively and control oily channel C, the other end of oil inlet passage P and upper cylinder half chamber drainback passage T1 all is communicated to outside oil sump 1, and the other end of controlling oily channel C is communicated to upper cylinder half chamber 125.Need to prove that at this this oil sump 1 can be separately for switch valve 10 provides pressure oil, also can be simultaneously provide working oil as the oil sources of fluid coupling.And cylinder chamber 126 is communicated with cylinder chamber drainback passage T2 down, and following cylinder chamber drainback passage T2 one end is communicated to outside oil sump.Pass at valve rod 113 on the position of valve body 111 and also be arranged with " O " RunddichtringO 128, be used for the sealing at this place.
The working principle of this switch valve 10 is as follows, in the working oil pipeline that the filler opening I and the oil outlet O of valve body 111 is communicated in fluid coupling, when fluid coupling needs fuel feeding, two-position three way magnetic valve 13 is switched on, two-position three way magnetic valve 13 electric after, oil inlet passage P and the oily channel C of control are conducted, pressure oil in the oil sump 1 enters in the upper cylinder half chamber 125 of oil cylinder by oil inlet passage P and the oily channel C of control, make upper cylinder half chamber 125 pressure increase and promote piston 123 and move down, thereby driving valve rod 113 descends, and make spool 112 move down and open, working oil promptly enters uuper valve chamber by lower valve chamber and from oil outlet O output from the filler opening I of valve body 111, and the pressure oils in the cylinder chamber 126 flow into oil sump 1 from cylinder chamber drainback passage T2 down down; When fluid coupling needs fuel cut-off, only need two-position three way magnetic valve 13 is cut off the power supply, after two-position three way magnetic valve 13 dead electricity, make oily channel C of control and upper cylinder half chamber drainback passage T1 be conducted, pressure oil in the upper cylinder half chamber 125 is from controlling oily channel C and upper cylinder half chamber drainback passage T1 flows back to oil sump 1, piston 123 rises under the effect of the pressure that plays cylinder chamber 126 and second Returnning spring 124, and move on the drive valve rod 113, spool 112 is under the effect of the valve rod 113 and first Returnning spring 121, reset and hydraulic control main valve 11 is closed, thereby stop fuel feeding fluid coupling.
Switch valve of the present utility model 10 is simple in structure, easy to maintenance, promptly can control the switch of hydraulic control main valve 11 fast and effectively by the switching electricity of two-position three way magnetic valve 13, and through repeatedly repetition test and calculating, the response time of this switch valve 10 can reach below 0.5 second, operating life can satisfy the requirement that fluid coupling advances oil extraction control fully then up to 3000～4,000 ten thousand times.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model the above embodiment's variation, modification.
Claims (6)
1. one kind big flow electro hydraulic on-off valve is characterized in that:
This switch valve comprises hydraulic control main valve and the control mechanism of being located on the main valve, the hydraulic control main valve comprises valve body, spool and valve rod, the valve body both sides have filler opening and oil outlet, valve inner has the valve seat that valve body is divided into upper and lower valve pocket, spool is located at the valve seat bottom, the valve rod lower end is connected with spool, and the upper end passes valve body and is connected with control mechanism.
2. big flow electro hydraulic on-off valve as claimed in claim 1 is characterized in that:
Described control mechanism comprises oil cylinder, first Returnning spring and hydraulic oil cylinder driving parts, and oil cylinder is located at the valve body upper end, and is connected with valve rod; First Returnning spring is located in the valve body, and the bottom of upper end and spool offsets, and lower end and valve body bottom interior wall offset; The hydraulic oil cylinder driving parts are located at the oil cylinder top.
3. big flow electro hydraulic on-off valve as claimed in claim 2 is characterized in that:
Described oil cylinder comprises cylinder body, piston and second Returnning spring, cylinder body is connected at the valve body upper end, piston is located in the cylinder body, and cylinder body is divided into upper and lower cylinder chamber, the piston lower end is connected with the valve rod upper end, second Returnning spring is sheathed on the valve rod, and upper end and piston offset, and lower end and cylinder base inwall offset.
4. big flow electro hydraulic on-off valve as claimed in claim 3 is characterized in that:
Described hydraulic oil cylinder driving parts are a two-position three way magnetic valve, three ends of two-position three way magnetic valve are communicated with oil inlet passage, upper cylinder half chamber drainback passage respectively and control oily passage, the other end of oil inlet passage and upper cylinder half chamber drainback passage all is communicated to outside oil sump, and the other end of controlling oily passage is communicated to the upper cylinder half chamber.
5. big flow electro hydraulic on-off valve as claimed in claim 3 is characterized in that:
Described cylinder chamber down is communicated with down cylinder chamber drainback passage, and following cylinder chamber drainback passage one end is communicated to outside oil sump.
6. big flow electro hydraulic on-off valve as claimed in claim 3 is characterized in that:
Described valve rod passes on the position of valve body and also is arranged with " O " RunddichtringO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201170613U CN201650908U (en) | 2010-02-23 | 2010-02-23 | High-flow electrohydraulic switch valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201170613U CN201650908U (en) | 2010-02-23 | 2010-02-23 | High-flow electrohydraulic switch valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201650908U true CN201650908U (en) | 2010-11-24 |
Family
ID=43116143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201170613U Expired - Fee Related CN201650908U (en) | 2010-02-23 | 2010-02-23 | High-flow electrohydraulic switch valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201650908U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065252A (en) * | 2015-08-20 | 2015-11-18 | 沈阳大学 | Automatic exhaust valve of fluid drive diaphragm pump |
| CN110906030A (en) * | 2019-12-30 | 2020-03-24 | 四川威尔霸新能源科技有限公司 | Oil inlet control electromagnetic valve suitable for diesel generating set |
-
2010
- 2010-02-23 CN CN2010201170613U patent/CN201650908U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065252A (en) * | 2015-08-20 | 2015-11-18 | 沈阳大学 | Automatic exhaust valve of fluid drive diaphragm pump |
| CN110906030A (en) * | 2019-12-30 | 2020-03-24 | 四川威尔霸新能源科技有限公司 | Oil inlet control electromagnetic valve suitable for diesel generating set |
| CN110906030B (en) * | 2019-12-30 | 2024-05-14 | 四川威尔霸新能源科技有限公司 | Oil inlet control electromagnetic valve suitable for diesel generating set |
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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: 20101124 Termination date: 20150223 |
|
| EXPY | Termination of patent right or utility model |