CN201539457U - Ball-type electromagnetic directional valve - Google Patents
Ball-type electromagnetic directional valve Download PDFInfo
- Publication number
- CN201539457U CN201539457U CN2009201997125U CN200920199712U CN201539457U CN 201539457 U CN201539457 U CN 201539457U CN 2009201997125 U CN2009201997125 U CN 2009201997125U CN 200920199712 U CN200920199712 U CN 200920199712U CN 201539457 U CN201539457 U CN 201539457U
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- CN
- China
- Prior art keywords
- push rod
- valve
- steel ball
- ball
- lever
- 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 relates to a ball-type electromagnetic directional valve, which comprises a valve body in which a valve hole is formed, a lever and an electromagnet with an iron core, wherein one end of the lever is in contact with the iron core while a screw is arranged at the other end thereof; the screw is propped against one end of the push rod positioned in the valve hole, and a first steel ball is clamped between the screw and one end of the push rod; a retaining ring, a Y-shaped ring, a spacer sleeve and a guiding sleeve are sleeved on the peripheral surface of the push rod; the other end of the push rod is opposite to the jacking rod positioned in the valve hole through a second steel ball; the other end of the jacking rod is propped against a spring; the second steel ball is clamped in an overflow ring; a left valve seat and a right valve seat are respectively arranged on two sides of the overflow ring; and at the same time, a first external interface as an oil inlet, and a second external interface and a third external interface as oil return openings are formed on the valve body. The ball-type electromagnetic directional valve is characterized in that a filter element is mounted at the first external interface. By adopting the structure, the impurities in hydraulic oil are entrapped in the filter element, thereby preventing the impurities in the hydraulic oil from entering the valve hole, and enabling the electromagnetic directional valve to be operated reliably for a long time.
Description
Technical field
The utility model relates to a kind of solenoid directional control valve, specifically refers to a kind of ball formula solenoid directional control valve.
Background technique
Ball formula solenoid directional control valve is little because of leaking, speed of response is widely used in the different hydraulic control systems soon, as Chinese patent notice of authorization number for " the high water base spherical solenoid directional control valve " of 88201514U just disclosed so a kind of selector valve, this sphere solenoid directional control valve is by valve body, lever box and electromagnet are formed, electromagnet works to valve body by the lever box, wherein in the hole of valve body spring is installed successively, release link, " P " mouthful valve seat, middle push rod, valve pocket, " O " mouthful valve seat, guide pin bushing, push rod, separation sleeve, seal ring and steel ball, be drilled with vent on the release link, " P " mouthful valve seat, " O " mouthful valve seat, the lip part equal diameters of guide pin bushing and blind flange, corresponding therewith, valve body hole also equates with above part cooperation place each section diameter.Because the part that cooperates with valve body hole in the valve body is all made same diameter, it is comparatively convenient therefore to process, and also is convenient to demolition and maintenance in the future.
But know from the structure of present ball formula solenoid directional control valve, because the oil duct in its valve body is less, and from the hydraulic oil that pressure port flows into, be entrained with some impurity unavoidably, therefore service time one is long, these impurity will be attached on the part in the above-mentioned valve body hole, so that occur that oil duct stops up, part is stuck or reduce the phenomenons such as sensitivity of spherical solenoid directional control valve, and then influence the normal use of ball formula solenoid valve.
The model utility content
Technical problem to be solved in the utility model is to provide a kind of to be difficult for making oil duct to stop up and the ball formula solenoid directional control valve of energy reliably working at above-mentioned prior art present situation.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: the valve body that is provided with valve opening in this ball formula solenoid directional control valve comprises, lever and the electromagnet that has iron core, one end of wherein said lever contacts with described iron core, the other end of described lever is provided with screw, this screw is inconsistent with push rod one end that is positioned at above-mentioned valve opening, and between this screw and push rod one end, accompany first steel ball, the outer circumferential face of this push rod is with back-up ring successively, Y-shaped ring, spacer and guide pin bushing, the other end of this push rod is relative with push rod one end that is positioned at described valve opening by second steel ball, the other end of described push rod then offsets with spring, above-mentioned second steel ball is clipped in the overcurrent ring, both sides are respectively arranged with left valve seat, right valve seat, on described valve body, have simultaneously first external tapping as filler opening, second external tapping and the 3rd external tapping as return opening is characterized in that: the described first external tapping place is equipped with filter core.
In the utility model, described guide pin bushing external diameter can be not equal to the external diameter of described left valve seat, right valve seat.
Compared with prior art, because first external tapping of the present utility model is that the filler opening place has set up filter core, therefore the hydraulic oil that enters from filler opening is through behind the filter element filtering, impurity in it is trapped in the filter core, thereby stoped the impurity in the hydraulic oil to enter in the valve opening effectively, guaranteed that the utility model can work stably in a long term.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation;
Fig. 2 is the structural representation of valve body among Fig. 1;
Fig. 3 is that the A-A of Fig. 2 is to sectional view.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in Figure 1 to Figure 3, this ball formula solenoid directional control valve includes valve body 2, lever 15 and has the electromagnet 1 of iron core 16, wherein, electromagnet 1 is positioned at valve body 2 tops, lever 15 is positioned at lever box 17, and lever box 17 is fixed on the left side of valve body 2 and electromagnet 1, and lever 15 upper ends contact with the iron core 16 of electromagnet, the lower end of lever 15 is provided with screw 14, and lever 15 contacts with first steel ball 13 by this screw.Be provided with the valve opening of horizontal arrangement in the described valve body, left end position in the valve opening is mounted with push rod 8, the outer circumferential face of push rod is with back-up ring 10, Y-shaped ring 9, spacer 18 and guide pin bushing 11, the left end of this push rod is inconsistent by positioning seat 12 and above-mentioned first steel ball 13, promptly first steel ball is clipped between the left end of above-mentioned screw and push rod, be provided with second steel ball 21 in the valve opening of the right-hand member of this push rod 8, this second steel ball is clipped in the overcurrent ring 20, the second steel ball both sides are respectively arranged with left valve seat 19, right valve seat 7, the right-hand member of above-mentioned push rod 8 offsets by the left valve seat 19 and second steel ball 21, the left end of push rod 5 offsets by the right valve seat 7 and second steel ball 21, make and form the first oil pocket E in the valve opening between the push rod 5 and second steel ball 21, form the second oil pocket F in the valve opening between the push rod 8 and second steel ball, in the valve opening of the Y-shaped ring 9 of push rod, form the 3rd oil pocket G.The right-hand member of push rod 5 contacts with spring 4 simultaneously, and spring 4 is enclosed within the spring seat 3, so that push rod has the trend that moves to the left all the time.
Also have the first external tapping P on the above-mentioned valve body as filler opening, as second external tapping O of return opening and the 3rd external tapping A that links to each other with actuator port, wherein, filter core 6 is installed, so that in time filter out the impurity in the hydraulic oil at the first external tapping place.In valve body, be provided with simultaneously the first oil duct a, the second oil duct b, the 3rd oil duct c that are communicated with above-mentioned overcurrent ring 20 and the 3rd external tapping A, the 4th oil duct d that is communicated with the above-mentioned first oil pocket E and the first external tapping P, be communicated with the 5th oil duct e of the second oil pocket F and external tapping O, and the 6th oil duct i, the 7th oil duct g that are communicated with the 4th oil duct d and the 3rd oil pocket G.
Working principle is as follows: when electromagnet coil power, electromagnetic actuation, promote lever with first steel ball, push rod toward moving right, back down second steel ball, second steel ball is moved right block right valve seat, the working oil that enters from the 3rd external tapping A like this, flow into and enter in second oil pocket by the first oil duct a, the second oil duct b, the 3rd oil duct c, overcurrent ring, left valve seat successively, flow back in the fuel tank by the 5th oil duct e, the second external tapping O subsequently, promptly this moment, working oil flowed to the second external tapping O from the 3rd external tapping A.When electromagnet coil cuts off the power supply, electromagnet disconnects, push rod with the past left translation of second steel ball, and makes second steel ball block left valve seat 19 under the elastic force effect of spring, the second oil pocket F and the second external tapping O have been blocked, working oil flows into from the first external tapping P, and behind the 4th oil duct d, the first oil pocket E, overcurrent ring, more successively through the 3rd oil duct c, the second oil duct b, the first oil duct a flow out from the 3rd external tapping A, and promptly this moment, working oil flowed to the 3rd external tapping A from the first external tapping P.
Claims (2)
1. ball formula solenoid directional control valve, be provided with the valve body (2) of valve opening in comprising, lever (15) and have the electromagnet (1) of iron core (16), one end of wherein said lever (15) contacts with described iron core (16), the other end of described lever is provided with screw (14), this screw is inconsistent with push rod (8) one ends that are positioned at above-mentioned valve opening, and between this screw and push rod one end, accompany first steel ball (13), the outer circumferential face of this push rod is with back-up ring (10), Y-shaped ring (9), spacer (18) and guide pin bushing (11), the other end of this push rod is relative with push rod (5) one ends that are positioned at described valve opening by second steel ball (21), the other end of described push rod then offsets with spring (4), above-mentioned second steel ball is clipped in the overcurrent ring (20), both sides are respectively arranged with left valve seat (19), right valve seat (7), on described valve body, have simultaneously first external tapping (P) as filler opening, as second external tapping (T) and the 3rd external tapping (A) of return opening, it is characterized in that: described first external tapping (P) locates to be equipped with filter core (6).
2. ball formula solenoid directional control valve according to claim 1 is characterized in that: described guide pin bushing (11) external diameter is not equal to the external diameter of described left valve seat (19), right valve seat (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201997125U CN201539457U (en) | 2009-10-29 | 2009-10-29 | Ball-type electromagnetic directional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201997125U CN201539457U (en) | 2009-10-29 | 2009-10-29 | Ball-type electromagnetic directional valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201539457U true CN201539457U (en) | 2010-08-04 |
Family
ID=42590909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201997125U Expired - Fee Related CN201539457U (en) | 2009-10-29 | 2009-10-29 | Ball-type electromagnetic directional valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201539457U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936315A (en) * | 2010-09-20 | 2011-01-05 | 竺浩君 | Zero-leakage unloading valve bank |
| CN103032398A (en) * | 2012-12-21 | 2013-04-10 | 武汉航天波纹管股份有限公司 | Ball control flow jet type high-frequency electrohydraulic digital valve |
| CN103047211A (en) * | 2013-01-06 | 2013-04-17 | 北京化工大学 | Two-position four-way solenoid globe reversing valve |
| CN106763895A (en) * | 2016-12-09 | 2017-05-31 | 河南平芝高压开关有限公司 | Reversal valve coil drive power amplification mechanism and reversal valve |
-
2009
- 2009-10-29 CN CN2009201997125U patent/CN201539457U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936315A (en) * | 2010-09-20 | 2011-01-05 | 竺浩君 | Zero-leakage unloading valve bank |
| CN101936315B (en) * | 2010-09-20 | 2013-03-13 | 竺浩君 | Zero-leakage unloading valve bank |
| CN103032398A (en) * | 2012-12-21 | 2013-04-10 | 武汉航天波纹管股份有限公司 | Ball control flow jet type high-frequency electrohydraulic digital valve |
| CN103047211A (en) * | 2013-01-06 | 2013-04-17 | 北京化工大学 | Two-position four-way solenoid globe reversing valve |
| CN103047211B (en) * | 2013-01-06 | 2015-03-11 | 北京化工大学 | Two-position four-way solenoid globe reversing valve |
| CN106763895A (en) * | 2016-12-09 | 2017-05-31 | 河南平芝高压开关有限公司 | Reversal valve coil drive power amplification mechanism and reversal valve |
| CN106763895B (en) * | 2016-12-09 | 2019-03-12 | 河南平芝高压开关有限公司 | Reversal valve coil drive power amplification mechanism and reversal 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100804 Termination date: 20161029 |