CN202017791U - Threaded plug-in two-position three-way cone valve type electromagnetic valve - Google Patents
Threaded plug-in two-position three-way cone valve type electromagnetic valve Download PDFInfo
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- CN202017791U CN202017791U CN201120144683XU CN201120144683U CN202017791U CN 202017791 U CN202017791 U CN 202017791U CN 201120144683X U CN201120144683X U CN 201120144683XU CN 201120144683 U CN201120144683 U CN 201120144683U CN 202017791 U CN202017791 U CN 202017791U
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Abstract
A threaded plug-in two-position three-way cone valve type electromagnetic valve includes a valve housing, a magnetic-isolating tube, a coil, a fixed iron, a movable iron, a rear cover, a valve core, a reposition mechanism and a front push rod, wherein the valve housing is provided with a first oil port, a second oil port and a third oil port; a hollow valve seat is arranged at a first oil port at the front end part of the valve housing; the inner cavity of the magnetic-isolating tube is provided with the movable iron; the front end of the fixed iron is connected and assembled with the rear end of the valve housing; the rear end of the fixed iron is connected and assembled with the rear end part of the magnetic-isolating tube; the hollow fixed iron is provided with a first cavity and a second cavity; the rear cover is arranged at the rear end part of the magnetic-isolating tube; the valve core can be axially and movably arranged in the valve housing; and the front push rod is arranged in the second cavity of the fixed iron and can transmit the acting force of the movable iron to the valve core, so as to enable the valve core to move forward. Compared with the prior art, the electromagnetic valve has the advantages of simple integral structure, simplicity in assembly, high possibility of guaranteeing the precision and high reliability, as well as long service life and little inner leakage under the rated operating pressure.
Description
Technical field
The utility model relates to a kind of solenoid valve, relates in particular to a kind of thread cartridge formula two-position three way cone valve type solenoid valve.
Background technique
In modern machinery, the various hydraulic system, two-position three way high pressure, no leakage fluid hydraulic circuit have been widely applied, wherein two-position three way cone valve type solenoid valve is the crucial hydraulic element of this type systematic, and the quality of two-position three way cone valve type magnetic valve performance directly affects the performance of main frame.Existing two-position three way cone valve type solenoid valve is divided into two kinds of plate valve and cartridge valves by Placement, in order to reduce installing space, improves system reliability in system, generally adopts plug-in type two-position three way cone valve type solenoid valve.Existing plug-in type two-position three way cone valve type solenoid valve has the following disadvantages: at first, complex structure, coaxality requires to reach ten many places between the part, and the gap, place that is slidingly matched is minimum, the technology manufacture difficulty is big, spool blocks easily during the actual use of product, causes for the main frame reliability and has a strong impact on; Secondly, the electromagnet argon arc welding technique is subjected to narrow limitation, quality problems such as the pore that in welding process, produces, weldering partially, welding stress, thus reduce working life and reliability; Once more, main valve is provided with the sealing of three places, and is relatively stricter to machining accuracy, seal request, and the logical oil of main valve plug elongate hollow is to the material requirements height.
In sum, existing plug-in type two-position three way cone valve type electromagnetic valve structure also can be further improved.
The model utility content
Technical problem to be solved in the utility model is to provide a kind of simple in structure, cheap thread cartridge formula two-position three way cone valve type solenoid valve at the above-mentioned state of the art.
Another technical problem to be solved in the utility model provides a kind of zero leakage, long thread cartridge formula two-position three way cone valve type solenoid valve of life-span.
Another technical problem to be solved in the utility model provides the fast thread cartridge formula two-position three way cone valve type solenoid valve of a kind of speed of response.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: a kind of thread cartridge formula two-position three way cone valve type solenoid valve is characterized in that comprising
Valve pocket, the 3rd hydraulic fluid port that has first hydraulic fluid port that is positioned at front end and axially is provided with, second hydraulic fluid port that radially is provided with and radially be provided with, aforesaid second hydraulic fluid port is positioned at the 3rd hydraulic fluid port the place ahead, and first oil port of this valve pocket front end is provided with the valve seat of a hollow;
Plunger tube,, inner chamber is provided with a moving iron;
Decide iron, the rear end of front end and aforementioned valve pocket is linked and packed, and the rearward end of rear end and aforementioned plunger tube is linked and packed, and this is decided iron hollow and has first cavity of front end and second cavity of rear end, and the radial length of aforementioned first cavity is greater than second cavity;
Coil is coated on aforementioned plunger tube and decides the iron outside;
Bonnet is located at aforementioned plunger tube rearward end;
Spool axially can be provided with in the aforesaid valve pocket movably and rearward end stretches into aforementioned first cavity of deciding iron;
Resetting-mechanism forces aforementioned spool to keep the trend that moves backward all the time; And
Before push rod, axially can be located at movably and also the active force of aforementioned moving iron can be transferred in aforementioned second cavity of decide iron on the spool and spool is moved forward,
Aforesaid spool is in the primary importance state, and aforesaid first hydraulic fluid port and second hydraulic fluid port communicate, and be obstructed with the 3rd hydraulic fluid port; Aforesaid spool is in second place state, and aforesaid second hydraulic fluid port and the 3rd hydraulic fluid port communicate, and be obstructed with first hydraulic fluid port.
Described resetting-mechanism can comprise
Front pad is located at described valve pocket ear end face;
Back pad is located at the rearward end of described spool; And
Returnning spring be sheathed on the rearward end of described spool, and front end and aforesaid front pad offsets, and rear end and aforesaid back pad offset.
Described plunger tube with decide iron and bonnet all adopts argon arc welding to be welded as a whole, amount pressure can be provided.
Describedly decide the iron ear end face and form groove, accordingly, the front end of described moving iron has the boss that cooperates with aforementioned grooves.Design can increase the adhesive area like this, improves suction, shortens the opening time of solenoid valve; Simultaneously can design the adhesive gap again for concavo-convex, play separated magnetic effect, reduce moving iron release time, shorten the shut-in time of solenoid valve, improve the solenoid valve speed of response.
The front end of push rod forms preceding groove milling before described, the axial bore that rearward end forms radial hole and communicates with radial hole.Design reduces resistance to motion like this, reduces dead electricity starting magnetic attraction, thereby shortens the opening and closing time of solenoid valve.
Further, the front-end face of described spool has with valve seat and cooperates closing first conical surface that first hydraulic fluid port and second hydraulic fluid port are communicated with, and the middle part has bulge loop cooperation with valve sleeving inner wall to close second conical surface that second hydraulic fluid port is communicated with the 3rd hydraulic fluid port.
Further, described bonnet hollow and moving iron can be met an urgent need and be commutated when being provided with a coil losing electricity manual push rod.
Further, described moving iron forms axial groove milling from front to back.Described spool middle part has front axle from front to back to groove, and rearward end has the radially groove that is communicated with axial pass trough.
The rearward end of described valve pocket have outside thread and with the outer shoulder that ends that is positioned at outside thread front end projection, accordingly, described rearward end of decide iron have the internal thread that cooperates with aforementioned external thread bolt connection and with outward only shoulder cooperate spacing interior only shoulder.Play the guide-localization effect.
Compared with prior art, advantage of the present utility model is: overall structure is simple, and assembling is easy to guarantee validity easily, the reliability height, and under rated working pressure, the long lifetime, internal leakage is little.Be applicable to that high workload pressure, internal leakage are little, in long lifetime, integrated demanding various systems, engineering machinery and the equipment.
Description of drawings
Fig. 1 is the example structure schematic representation.
Fig. 2 is the structural representation of moving iron among Fig. 1.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is a structural representation of deciding iron among Fig. 1.
Fig. 5 is the structural representation of preceding push rod among Fig. 1.
Fig. 6 is the constitutional diagram of spool and resetting-mechanism among Fig. 1.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in Figure 1, thread cartridge formula two-position three way cone valve type solenoid valve comprises valve pocket 1, plunger tube 6, coil (do not have among the figure and illustrate), decides iron 3, bonnet 8, spool 4 resetting-mechanisms 9 and preceding push rod 5.
Valve pocket 1 has the first hydraulic fluid port 1a that is positioned at the axial setting of front end, the radially second hydraulic fluid port 1b of She Zhiing and radially the 3rd hydraulic fluid port 1c of setting, the second hydraulic fluid port 1b is positioned at the 3rd hydraulic fluid port 1c the place ahead, the first hydraulic fluid port 1a place of this valve pocket 1 front end is provided with the valve seat 2 of a hollow, by regulating valve seat 2, can adjust the flow size of solenoid valve, can realize the requirement of different user to various flows, and, gap and Sealing little between valve pocket 1 and the valve seat 2 have guaranteed the low leakage of the first hydraulic fluid port 1a to the second hydraulic fluid port 1b, designing requirement: valve pocket adopts high-abrasive material, and each hole and screw thread keep with one heart.
Plunger tube 6 inner chambers are provided with the moving iron 7 that moves behind the coil electricity, and in conjunction with shown in Figure 3, moving iron 7 forms axial groove milling 72 from front to back, and axially groove milling 72 can reduce moving Railway transportation dynamic resistance, shortens the opening and closing time of solenoid valve, improves the solenoid valve speed of response.Plunger tube 6 is welded as a whole by argon arc welding by first pipe fitting 61 and second pipe fitting 62 in the present embodiment.Coil is coated on plunger tube 6 and decides iron 3 outsides, and the energising back is decided iron 3 and produced magnetic field, attracts moving iron to move.
In conjunction with shown in Figure 4, decide iron 3 front ends and be connected with the rear end screw-thread fit of valve pocket 1, the rearward end of rear end and plunger tube 6 is linked and packed, and decides iron 3 hollows and has first cavity 31 of front end and second cavity 32 of rear end, and the radial length of first cavity 31 is greater than second cavity 32.
Bonnet 8 hollows also are located at plunger tube 6 rearward end, are provided with a manual push rod 82 and spacing with stop collar 81 in the bonnet 8.The moving iron commutation of meeting an urgent need during coil losing electricity, the built-in manual push rod of bonnet hollow design drives manual push rod with suitable Allen wrench and reaches the manual reverse of direction purpose.
Spool 4 axially can be provided with in the valve pocket 1 movably and rearward end stretches into first cavity 31 of deciding iron, and spool 4 rearward end contact with first cavity, 31 inner wall sealings.In conjunction with shown in Figure 6, spool 4 middle parts have front axle from front to back to groove 43, and rearward end has the radially groove 44 that is communicated with axial pass trough 43, guarantee the valve core movement influence that is not stressed.
In conjunction with shown in Figure 6, resetting-mechanism 9 forces spool 4 to keep the trend that moves backward all the time, resetting-mechanism 9 comprises front pad 91, back pad 93 and Returnning spring 92, front pad 91 is located at valve pocket 1 ear end face, back pad 93 is located at spool 4 rearward end, and Returnning spring 92 covers are located at spool 4 rearward end by a jump ring 94, and, front end and front pad 91 offset, and the rear end offsets with back pad 93.
In conjunction with shown in Figure 5, preceding push rod 5 axially can be located in second cavity 32 of deciding iron movably and the active forces that can will move iron 7 are transferred on the spool 4 and spool 4 is moved forward.Groove milling 51 before the front end of preceding push rod 5 forms, the axial bore 53 that rearward end forms radial hole 52 and communicates with radial hole 52, design reduces resistance to motion like this, and this preceding push rod 5 adopts stainless steel material, reduce dead electricity starting magnetic attraction, thereby shorten the opening and closing time of solenoid valve.
Plunger tube 6 with decide iron 3 and bonnet 8 all adopts argon arc welding to be welded as a whole, rated working pressure can reach 350Bar.
In conjunction with Fig. 2 and shown in Figure 4, decide iron 3 ear end faces and form groove 34, accordingly, the front end of moving iron 7 has the boss 71 with groove fit.Design can increase the adhesive area like this, improves suction, shortens the opening time of solenoid valve; Simultaneously can design the adhesive gap again for concavo-convex, play separated magnetic effect, reduce moving iron release time, shorten the shut-in time of solenoid valve, improve the solenoid valve speed of response.
In conjunction with shown in Figure 6, the front-end face of spool 4 has with valve seat 2 and cooperates closing first conical surface 41 that the first hydraulic fluid port 1a and the second hydraulic fluid port 1b are communicated with, and the middle part has bulge loop 11 cooperations with valve sleeving inner wall to close second conical surface 42 that the second hydraulic fluid port 1b is communicated with the 3rd hydraulic fluid port 1c.
The rearward end of valve pocket 1 has outside thread and reaches and the outer shoulder 12 that ends that is positioned at outside thread front end projection, accordingly, the rearward end of deciding iron 3 has the internal thread that cooperates with external thread bolt connection and cooperates the spacing interior shoulder 33 (seeing shown in Figure 4) that ends with the outer shoulder 12 that ends, and only shoulder 12 has cooperated the guide-localization effect with interior only shoulder 33 outward.
Coil losing electricity, spool 4 moves under the effect of Returnning spring 92 backward, second conical surface 42 until spool contacts and the second hydraulic fluid port 1b and the 3rd hydraulic fluid port 1c is blocked with bulge loop 11 sealings of valve pocket, and simultaneously, first conical surface 41 of spool breaks away from valve seat 2 rearward end, and the first hydraulic fluid port 1a and the second hydraulic fluid port 1b are communicated; Coil get electric after, moving iron 7 moves forward under the action of a magnetic field, push rod 5 moves forward before driving, and then push rod 5 promotion spools 4 move forward and compression reseting spring 92 before making, bulge loop 11, the second hydraulic fluid port 1b and the 3rd hydraulic fluid port 1c that second conical surface 42 of spool breaks away from valve pocket communicate, simultaneously, first conical surface 41 contacts with the sealing of valve seat 2 ear end faces, thereby blocks the passage between the second hydraulic fluid port 1b and the first hydraulic fluid port 1a; Behind the coil losing electricity, spool restores to the original state.
Claims (10)
1. a thread cartridge formula two-position three way cone valve type solenoid valve is characterized in that comprising
Valve pocket, the 3rd hydraulic fluid port that has first hydraulic fluid port that is positioned at front end and axially is provided with, second hydraulic fluid port that radially is provided with and radially be provided with, aforesaid second hydraulic fluid port is positioned at the 3rd hydraulic fluid port the place ahead, and first oil port of this valve pocket front end is provided with the valve seat of a hollow;
Plunger tube, inner chamber are provided with a moving iron;
Decide iron, the rear end of front end and aforementioned valve pocket is linked and packed, and the rearward end of rear end and aforementioned plunger tube is linked and packed, and this is decided iron hollow and has first cavity of front end and second cavity of rear end, and the radial length of aforementioned first cavity is greater than second cavity;
Coil is coated on aforementioned plunger tube and decides the iron outside;
Bonnet is located at aforementioned plunger tube rearward end;
Spool axially can be provided with in the aforesaid valve pocket movably and rearward end stretches into aforementioned first cavity of deciding iron;
Resetting-mechanism forces aforementioned spool to keep the trend that moves backward all the time; And
Before push rod, axially can be located at movably and also the active force of aforementioned moving iron can be transferred in aforementioned second cavity of decide iron on the spool and spool is moved forward,
Aforesaid spool is in the primary importance state, and aforesaid first hydraulic fluid port and second hydraulic fluid port communicate, and be obstructed with the 3rd hydraulic fluid port; Aforesaid spool is in second place state, and aforesaid second hydraulic fluid port and the 3rd hydraulic fluid port communicate, and be obstructed with first hydraulic fluid port.
2. thread cartridge formula two-position three way cone valve type solenoid valve according to claim 1 is characterized in that described resetting-mechanism comprises
Front pad is located at described valve pocket ear end face;
Back pad is located at the rearward end of described spool; And
Returnning spring be sheathed on the rearward end of described spool, and front end and aforesaid front pad offsets, and rear end and aforesaid back pad offset.
3. thread cartridge formula two-position three way cone valve type solenoid valve according to claim 1 is characterized in that described plunger tube and decides iron and bonnet all adopts argon arc welding to be welded as a whole.
4. thread cartridge formula two-position three way cone valve type solenoid valve according to claim 1 is characterized in that describedly deciding the iron ear end face and forming groove, and accordingly, the front end of described moving iron has the boss that cooperates with aforementioned grooves.
5. thread cartridge formula two-position three way cone valve type solenoid valve according to claim 1 is characterized in that the front end of described preceding push rod forms preceding groove milling, the axial bore that rearward end forms radial hole and communicates with radial hole.
6. thread cartridge formula two-position three way cone valve type solenoid valve according to claim 1, the front-end face that it is characterized in that described spool has with valve seat and cooperates closing first conical surface that first hydraulic fluid port and second hydraulic fluid port are communicated with, and the middle part has bulge loop cooperation with valve sleeving inner wall to close second conical surface that second hydraulic fluid port is communicated with the 3rd hydraulic fluid port.
7. thread cartridge formula two-position three way cone valve type solenoid valve according to claim 1, the manual push rod that moving iron can be met an urgent need and be commutated when it is characterized in that described bonnet hollow and being provided with a coil losing electricity.
8. thread cartridge formula two-position three way cone valve type solenoid valve according to claim 1 is characterized in that described moving iron forms axial groove milling from front to back.
9. thread cartridge formula two-position three way cone valve type solenoid valve according to claim 1 is characterized in that described spool middle part has front axle from front to back to groove, and rearward end has the radially groove that is communicated with axial pass trough.
10. thread cartridge formula two-position three way cone valve type solenoid valve according to claim 1, the rearward end that it is characterized in that described valve pocket has the outer shoulder that ends that outside thread reached and be positioned at outside thread front end projection, accordingly, described rearward end of deciding iron has the internal thread that cooperates with aforementioned external thread bolt connection and cooperates spacing interior only shoulder with the outer shoulder that ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120144683XU CN202017791U (en) | 2011-05-03 | 2011-05-03 | Threaded plug-in two-position three-way cone valve type electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120144683XU CN202017791U (en) | 2011-05-03 | 2011-05-03 | Threaded plug-in two-position three-way cone valve type electromagnetic valve |
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| Publication Number | Publication Date |
|---|---|
| CN202017791U true CN202017791U (en) | 2011-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120144683XU Expired - Lifetime CN202017791U (en) | 2011-05-03 | 2011-05-03 | Threaded plug-in two-position three-way cone valve type electromagnetic valve |
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| Country | Link |
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| CN (1) | CN202017791U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161778A (en) * | 2011-12-09 | 2013-06-19 | 上海立新液压有限公司 | Novel thread plug-in mounting electromagnet seat valve |
| CN105275908A (en) * | 2014-06-27 | 2016-01-27 | 德国海利特有限公司 | Hydraulic valve |
| CN109084164A (en) * | 2018-10-25 | 2018-12-25 | 绵阳富临精工机械股份有限公司 | A kind of valve pocket for OCV Oil Control Valve |
| CN109677382A (en) * | 2019-02-21 | 2019-04-26 | 武汉辅安科技有限公司 | A kind of commercial vehicle electronic parking system having failure automatic braking function |
| CN115978234A (en) * | 2023-01-05 | 2023-04-18 | 宁波克泰液压有限公司 | Throttle type three-position five-way electromagnetic valve |
-
2011
- 2011-05-03 CN CN201120144683XU patent/CN202017791U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161778A (en) * | 2011-12-09 | 2013-06-19 | 上海立新液压有限公司 | Novel thread plug-in mounting electromagnet seat valve |
| CN105275908A (en) * | 2014-06-27 | 2016-01-27 | 德国海利特有限公司 | Hydraulic valve |
| CN105275908B (en) * | 2014-06-27 | 2017-11-17 | 德国海利特有限公司 | Hydraulic valve |
| CN109084164A (en) * | 2018-10-25 | 2018-12-25 | 绵阳富临精工机械股份有限公司 | A kind of valve pocket for OCV Oil Control Valve |
| CN109084164B (en) * | 2018-10-25 | 2024-03-22 | 绵阳富临精工机械股份有限公司 | Valve sleeve for engine oil control valve |
| CN109677382A (en) * | 2019-02-21 | 2019-04-26 | 武汉辅安科技有限公司 | A kind of commercial vehicle electronic parking system having failure automatic braking function |
| CN115978234A (en) * | 2023-01-05 | 2023-04-18 | 宁波克泰液压有限公司 | Throttle type three-position five-way electromagnetic valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111026 |
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| CX01 | Expiry of patent term |