CN204099696U - Electromagnetic for electromagnetic valve - Google Patents
Electromagnetic for electromagnetic valve Download PDFInfo
- Publication number
- CN204099696U CN204099696U CN201420606656.3U CN201420606656U CN204099696U CN 204099696 U CN204099696 U CN 204099696U CN 201420606656 U CN201420606656 U CN 201420606656U CN 204099696 U CN204099696 U CN 204099696U
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- CN
- China
- Prior art keywords
- push rod
- armature
- oil passage
- guide pin
- electromagnetic
- 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.)
- Withdrawn - After Issue
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- Magnetically Actuated Valves (AREA)
Abstract
The utility model discloses a kind of electromagnetic for electromagnetic valve, comprise magnetic core pipe, coil and nut; Magnetic core pipe comprises iron core, guide pin bushing, armature, push rod, hand push rod and end cap; Guide pin bushing is connected between iron core and end cap; Armature is slidably fitted in the inner chamber of guide pin bushing; Iron core is provided with the axial hole with guide pin bushing intracavity inter-connection; Push rod is located in axial hole; Hand push rod is arranged on end cap; Push rod is cylindrical shape; Push rod is provided with the first axial oil passage; The external diameter at the two end part of push rod is less than the external diameter at the middle part of push rod; The sidewall at the two end part of push rod is equipped with the oil through be connected with the first axial oil passage; Armature is provided with the second axial oil passage; Second axial oil passage is connected with the first axial oil passage; Return spring is provided with between armature and end cap.This electromagnetic for electromagnetic valve can alleviate the impact force of push rod and armature.
Description
Technical field
The utility model relates to solenoid valve market, relates to a kind of DC wet type electromagnet for valve or rather.
Background technique
Solenoid valve is used to the automation foundation element controlling flow direction, belongs to final controlling element.Solenoid valve is generally used for, on Mechanical course and industrial valve, controlling medium direction, thus reaches the control to valve switch.Electromagnet is the critical elements on solenoid valve, and it acts on the opening and closing for Controlling solenoid valve spool on solenoid valve.Current electromagnet comprises magnetic core pipe, coil and nut.And magnetic core pipe is the core parts of electromagnet.
The magnetic core pipe of the electromagnet of prior art comprises iron core, guide pin bushing, armature, push rod, hand push rod and end cap.Described guide pin bushing one end is connected on one end of described iron core, and described end cap is connected on the other end of described guide pin bushing.Described iron core is axially arranged with the axial hole for installing push rod along described iron core.The intracavity inter-connection of described axial hole and described guide pin bushing.Described armature is slidably fitted in the inner chamber of described guide pin bushing.Described push rod is slidably fitted in the axial hole of described iron core.Described hand push rod is arranged on described end cap.During use, the push rod described in described armature slip can promote slides, and described push rod can promote the valve core movement of solenoid valve.
The push rod of the electromagnet of prior art is cross section is hexagonal Cylindrical object, and the space formed between push rod outer wall and iron core inwall is each oily passage.Be axially arranged with two axial oil passage along armature on described armature, these two axial oil passage are all with guide pin bushing intracavity inter-connection and these two axial oil passage are symmetrical along armature axis.After electromagnet puts into hydraulic oil container, in the oily passage between push rod and iron core, in the axial oil passage of armature, guide pin bushing inner chamber and in space between iron core and armature and guide pin bushing inner chamber and all can be full of hydraulic oil in space between iron core and end cap.After electromagnet energising, by the effect of electromagnetic force, described armature can toward the motion of push rod direction, because the space between armature and iron core is compressed, hydraulic oil herein can flow to outside electromagnet by the oily passage between push rod and iron core, also can be supplemented the space between armature and end cap by the axial oil passage of armature.After electromagnet power-off, by the effect of valve core of the electromagnetic valve opposite force, push rod promotes armature toward motion in the other direction, space now between armature and end cap is compressed, hydraulic oil herein can flow into the space between armature and iron core by the axial oil passage of armature, unnecessary hydraulic oil also can be flowed to outside electromagnet by the oily passage between push rod and iron core.Cross section due to the push rod of the electromagnet of prior art is Hexagon, the oily flux ratio of the oily passage formed between push rod outer wall and iron core inwall is larger, again because the axial oil passage of two on armature is direct and guide pin bushing intracavity inter-connection, and oily flux is also very large, therefore, the damping function that hydraulic oil produces push rod and armature is very little, so push rod and armature motion can produce larger impact force, thus affect the stability of whole system, reduce the performance of system.
Prior art: 1.1 ', iron core, 1.1.1 ', axial hole, 1.2 ', guide pin bushing, 1.3 ', armature, 1.3.1 ', axial oil through, 1.4 ', push rod, 1.5 ', hand push rod, 1.6 ', end cap.
The utility model: 1, magnetic core pipe, 1.1, iron core, 1.1.1, axial hole, 1.2, guide pin bushing, 1.3, armature, 1.3.1, the second axial oil passage, 1.4, push rod, 1.4.1, the first axial oil passage, 1.4.2, concave face, 1.4.3, oil through, 1.4.4, horn mouth, 1.5, hand push rod, 1.6, end cap, 1.7, return spring, 2, coil, 3, nut.
Model utility content
The technical problems to be solved in the utility model is, provides a kind of electromagnetic for electromagnetic valve alleviating the impact force of push rod and armature.
Technical solution of the present utility model is, provides a kind of electromagnetic for electromagnetic valve with following structure, comprises magnetic core pipe, coil and nut; Described magnetic core pipe comprises iron core, guide pin bushing, armature, push rod, hand push rod and end cap; Described guide pin bushing is connected between described iron core and end cap; Described armature is slidably fitted in the inner chamber of described guide pin bushing; Described iron core is provided with the axial hole with described guide pin bushing intracavity inter-connection; Described push rod is located in described axial hole; Described hand push rod is arranged on described end cap; Described push rod is cylindrical shape; Described push rod is provided with the first axial oil passage; The external diameter at the two end part of described push rod is less than the external diameter at the middle part of described push rod; The sidewall at the two end part of described push rod is equipped with the oil through be connected with the first described axial oil passage; Described armature is provided with the second axial oil passage; The second described axial oil passage is connected with the first described axial oil passage; Return spring is provided with between described armature and end cap.
After adopting above structure, electromagnetic for electromagnetic valve of the present utility model, compared with prior art, has the following advantages:
Push rod due to electromagnetic for electromagnetic valve of the present utility model is cylindrical shape, and the gap formed between push rod outer wall and iron core inwall is very little, seldom has hydraulic oil to pass through.After electromagnet puts into hydraulic oil container, by the effect of return spring, push rod exterior edge face is against on the outer surface of valve core of the electromagnetic valve, and armature is against on push rod interior edge face; Valve core outer surface seals the external port of the first axial oil passage on push rod, and armature seals the inner port of the first axial oil passage on push rod near the end face of push rod.Hydraulic oil is flowed into by the oil through on push rod outer end or flow out the first axial oil passage substantially, flowed into by the oil through on push rod inner end or flow out the space between iron core and armature, because the oily flux of oil through is very little, therefore the damping function of hydraulic oil to push rod and armature is considerably increased, and return spring too increases the damping function of push rod and armature, thus push rod and armature can be made to move reposefully, very effectively alleviate the impact force of push rod and armature, ensure that the stability of whole system, also improve the performance of system.
Improve as another kind of the present utility model, the external port of the oil through of described push rod is inner small and outside big horn mouth.After adopting this kind of structure, described horn mouth has leading role, and hydraulic oil is circulated smoothly.
Accompanying drawing explanation
Fig. 1 is the structural representation of the magnetic core pipe of the electromagnetic for electromagnetic valve of prior art.
Fig. 2 is the structural representation of the armature of the magnetic core pipe of the electromagnetic for electromagnetic valve of prior art.
Fig. 3 is the structural representation of electromagnetic for electromagnetic valve of the present utility model.
Fig. 4 is the structural representation of the magnetic core pipe of electromagnetic for electromagnetic valve of the present utility model.
Fig. 5 is the structural representation of the armature of the magnetic core pipe of electromagnetic for electromagnetic valve of the present utility model.
Fig. 6 is the structural representation of the push rod of the magnetic core pipe of electromagnetic for electromagnetic valve of the present utility model.
Fig. 7 is the using state structural representation that the push rod of the magnetic core pipe of electromagnetic for electromagnetic valve of the present utility model is released.
Fig. 8 is the using state structural representation that the push rod of the magnetic core pipe of electromagnetic for electromagnetic valve of the present utility model is return.
Shown in figure:
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Refer to shown in Fig. 1 to Fig. 6, electromagnetic for electromagnetic valve of the present utility model comprises magnetic core pipe 1, coil 2 and nut 3.Described magnetic core pipe 1 comprises iron core 1.1, guide pin bushing 1.2, armature 1.3, push rod 1.4, hand push rod 1.5 and end cap 1.6.Described guide pin bushing 1.2 is connected between described iron core 1.1 and end cap 1.6, and described guide pin bushing 1.2 welds with iron core 1.1, also welds between guide pin bushing 1.2 with end cap 1.6.Described armature 1.3 is slidably fitted in the inner chamber of described guide pin bushing 1.2.Described iron core 1.1 is located at the axial hole 1.1.1 with described guide pin bushing 1.2 intracavity inter-connection.Described push rod 1.4 is located in described axial hole 1.1.1.Described hand push rod 1.5 is arranged on described end cap 1.6.
Described push rod 1.4 is cylindrical shape.Described push rod 1.4 be provided with the first axial oil passage 1.4.1, in this specific embodiment, the first described axial oil passage 1.4.1 is located at the centre of described push rod 1.4.The external diameter at the two end part of described push rod 1.4 is less than the external diameter at the middle part of described push rod 1.4; The sidewall at the two end part of described push rod 1.4 is equipped with the oil through 1.4.3 be connected with the first described axial oil passage 1.4.1; The external port of two described oil hole 1.4.3 is inner small and outside big horn mouth 1.4.4.Described armature 1.3 is provided with the second axial oil passage 1.3.1, and in this specific embodiment, the second described axial oil passage 1.3.1 is located at the centre of described armature 1.3.The second described axial oil passage 1.3.1 is connected with the first described axial oil passage 1.4.1.Return spring 1.7 is provided with between described armature 1.3 and end cap 1.6.
See also shown in Fig. 7 and Fig. 8, during use, the outer end of the push rod 1.4 of electromagnet is against on the spool of solenoid valve, by the effect of return spring, described valve core outer surface seals the external port of the first axial oil passage 1.4.1 on push rod 1.4, armature seals the inner port of the first axial oil passage on push rod near the end face of push rod, and hydraulic oil so just can be made can not to pass through smoothly from push rod external port and inner port.After electromagnet energising, by electromagnetic force, described armature 1.3 can toward the motion of push rod 1.4 direction, because the space between armature 1.3 and iron core 1.1 is compressed, hydraulic oil herein can be flowed in the first axial oil passage 1.4.1 by the oil through 1.4.3 on push rod 1.4 the inner, and then it is outer and enter the second axial oil passage 1.3.1 and flow between armature 1.3 and end cap 1.6 to flow to electromagnet by the oil through 1.4.3 on push rod 1.4 outer end.After electromagnet power-off, by the effect of valve core of the electromagnetic valve opposite force, push rod 1.4 promotes armature 1.3 toward motion in the other direction, space now between armature 1.3 and end cap 1.6 is compressed, hydraulic oil herein can flow in the second axial oil passage 1.3.1 of armature and the first axial oil passage 1.4.1 of push rod 1.4, and then flows to the space between armature 1.3 and iron core 1.1 by the oil through 1.4.3 on push rod 1.4 the inner and flowed to outside electromagnet by the oil through 1.4.3 on push rod 1.4 outer end.Compared with prior art, this kind of electromagnet greatly reduces the flow velocity of hydraulic oil, thus considerably increases the damping function that hydraulic oil produces push rod 1.4 and armature 1.3, push rod 1.4 and armature 1.3 can be moved reposefully, also reduce impact force to a great extent.
Claims (2)
1. an electromagnetic for electromagnetic valve, comprises magnetic core pipe (1), coil (2) and nut (3); Described magnetic core pipe (1) comprises iron core (1.1), guide pin bushing (1.2), armature (1.3), push rod (1.4), hand push rod (1.5) and end cap (1.6); Described guide pin bushing (1.2) is connected between described iron core (1.1) and end cap (1.6); Described armature (1.3) is slidably fitted in the inner chamber of described guide pin bushing (1.2); Described iron core (1.3) is provided with the axial hole (1.1.1) with described guide pin bushing (1.2) intracavity inter-connection; Described push rod (1.4) is located in described axial hole (1.1.1); Described hand push rod (1.5) is arranged on described end cap (1.6); It is characterized in that: described push rod (1.4) is cylindrical shape; Described push rod (1.4) is provided with the first axial oil passage (1.4.1); The external diameter at the two end part of described push rod (1.4) is less than the external diameter at the middle part of described push rod (1.4); The sidewall at the two end part of described push rod (1.4) is equipped with the oil through (1.4.3) be connected with described the first axial oil passage (1.4.1); Described armature (1.3) is provided with the second axial oil passage (1.3.1); Described the second axial oil passage (1.3.1) is connected with described the first axial oil passage (1.4.1); Return spring (1.7) is provided with between described armature (1.3) and end cap (1.6).
2. electromagnetic for electromagnetic valve according to claim 1, is characterized in that: the external port of the oil through (1.4.3) of described push rod (1.4) is inner small and outside big horn mouth (1.4.4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420606656.3U CN204099696U (en) | 2014-10-20 | 2014-10-20 | Electromagnetic for electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420606656.3U CN204099696U (en) | 2014-10-20 | 2014-10-20 | Electromagnetic for electromagnetic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204099696U true CN204099696U (en) | 2015-01-14 |
Family
ID=52268126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420606656.3U Withdrawn - After Issue CN204099696U (en) | 2014-10-20 | 2014-10-20 | Electromagnetic for electromagnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204099696U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315229A (en) * | 2014-10-20 | 2015-01-28 | 宁波市鄞州通力液压电器厂 | Electromagnet for electromagnetic valve |
| CN104633232A (en) * | 2015-01-22 | 2015-05-20 | 天长市永鑫科技工贸有限公司 | Pilot valve of four-way solenoid valve |
-
2014
- 2014-10-20 CN CN201420606656.3U patent/CN204099696U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315229A (en) * | 2014-10-20 | 2015-01-28 | 宁波市鄞州通力液压电器厂 | Electromagnet for electromagnetic valve |
| CN104633232A (en) * | 2015-01-22 | 2015-05-20 | 天长市永鑫科技工贸有限公司 | Pilot valve of four-way solenoid valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150114 Effective date of abandoning: 20160914 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |