CN104455657A - Hydraulic electromagnetic directional valve - Google Patents
Hydraulic electromagnetic directional valve Download PDFInfo
- Publication number
- CN104455657A CN104455657A CN201410738298.6A CN201410738298A CN104455657A CN 104455657 A CN104455657 A CN 104455657A CN 201410738298 A CN201410738298 A CN 201410738298A CN 104455657 A CN104455657 A CN 104455657A
- Authority
- CN
- China
- Prior art keywords
- armature
- push rod
- magnetic core
- hydraulic electromagnetic
- described magnetic
- 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.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention relates to a hydraulic electromagnetic directional valve and aims to solve the technical problem of jamming of an armature in an existing hydraulic directional valve during working. The hydraulic electromagnetic directional valve comprises a valve body, a valve element correspondingly arranged in the valve body, a magnetic sleeve correspondingly connected with the valve body, as well as the armature and a push rod which are correspondingly arranged in the magnetic sleeve, wherein the armature and the push rod are two independent parts; the push rod is correspondingly arranged in the magnetic sleeve, one end of the push rod is correspondingly connected with the end part of the valve element, and the armature is connected to the other end of the push rod; through motion of the armature to a magnetic core, the push rod is pushed to push the magnetic core to move. The hydraulic electromagnetic directional valve has the advantages of stable running and capability of avoiding jamming of the armature.
Description
Technical field
The present invention relates to a kind of solenoid valve, particularly relate to a kind of hydraulic electromagnetic change valve.
Background technique
hydraulic buttery valve refers in hydraulic transmission and is used for the element of control Ye Ti Ya Li ﹑ flow and direction.Wherein pilot pressure be called pressure controlled valve, what control flow is called flow control valve, the logical ﹑ of control system break and flow to be called position control valve.Pressure controlled valve is divided into Yi Liu Fa ﹑ reduction valve and sequence valve by purposes.Flow control valve is that the local resistance utilizing the choke area between regulating spool and valve body and it to produce regulates flow, thus controls the movement velocity of executive component.And hydraulic electromagnetic change valve uses more a kind of solenoid valve in current industrial control, it is at control flow direction, the aspects such as pressure have important left and right, for the support that the development heavyweight vehicle of enterprise is wanted, but hydraulicdirectional control valve in use also also exists problem, most often in use very easily there is stuck phenomenon in armature, and occur that the reason of this kind of phenomenon annoyings technician always, so far effectively solved not yet, because once there is the generation of stuck phenomenon, to directly affect the operation of whole system, simultaneously, particularly for some precision machining enterprises, the stable operation of solenoid directional control valve, to directly decide the height of its quality of product, therefore, the stuck phenomenon of armature is urgently to be resolved hurrily, to meet the demand that enterprise produces.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, adapt to reality need, a kind of hydraulic electromagnetic change valve is provided, occurs the technical problem of stuck phenomenon with the armature solved in current hydraulicdirectional control valve at work.
In order to realize the object of inventing, the technical solution adopted in the present invention is:
Design a kind of hydraulic electromagnetic change valve, comprise valve body, correspondence is arranged at spool in this valve body, the magnetic sleeve that connect corresponding to described valve body and corresponding armature, the push rod be arranged in described magnetic sleeve internal cavities; Described armature, push rod are two independently parts; Described push rod correspondence is arranged in described magnetic sleeve, and one end of this push rod is used for connect corresponding with the end of described spool, and its other end is used for being connected with described armature; Via the movement of described armature to magnetic core direction, promote the movement that described push rod promotes described magnetic core.
Further, described armature is cylindrical structure; And at least one pilot groove being communicated with armature two end part is offered along its axial direction on the outer wall of described armature; Or in described armature, offer at least one through hole being communicated with armature two end part.
Further, described pilot groove is two, and these two pilot grooves are about the axisymmetrical of armature; Described through hole is two, and about the axisymmetrical of be set forth in armature;
Further, also reaction spring is provided with in described magnetic sleeve, and the interior also correspondence of described magnetic sleeve is provided with limited step, one end of described reaction spring contacts with described limited step is corresponding, and its other end contacts with described magnetic core is corresponding via magnetic core banking stop; Reaction spring through extruding applies opposite force to described magnetic core banking stop, and then promotes the movement of described magnetic core.
Further, described magnetic core banking stop is placed on the end of described magnetic core, and when reaction spring extrudes by magnetic core, the inside in described reaction spring is stretched in the end of described magnetic core.
Further, the diameter of described magnetic core banking stop is identical with the outer end diameter of described magnetic sleeve.
Further, between described magnetic core banking stop and described reaction spring, be also provided with pad, the corresponding end of described reaction spring applies opposite force via described pad to described magnetic core banking stop.
Further, be also provided with between reaction spring installation cavity and described internal cavities its cross-sectional diameter be less than both diameters, for balancing the through hole of described push rod, and the length of this through hole is greater than 1/3 length of described push rod.
Further, be also provided with the hand push rod mount inlet that be communicated with corresponding to described internal cavities in the end of the magnetic sleeve away from valve body end, and be also provided with hand push rod in described hand push rod mount inlet.
Further, coil correspondence is installed on described magnetic sleeve, and is also provided with fastening nut outside the hand push rod mount inlet of described magnetic sleeve end, and described fastening nut is connected with the end thread of magnetic sleeve.
Beneficial effect of the present invention is:
1. the present inventor finds in using for many years, easily there is its basic reason of stuck phenomenon and be that push rod of the prior art and armature are taked to be fixedly connected with (namely in prior art be all by the welding edges of push rod on armature) mode causes in solenoid valve, therefore, the present inventor finally have found the method solving this problem by test of many times, namely the connection by push rod and armature of the present invention is designed to two independently parts, and adopt the mode of movable contact, namely push rod is not directly connected with armature, but two independently individual, the generation of armature stuck phenomenon can be solved by the design, improve the operation stability of this selector valve.
2. the present invention designs pilot groove or through hole further on armature, while armature moves left and right, can reduce back pressure when armature moves by this pilot groove or through hole, makes this armature be easier to mobile, mobile light and flexible.
3. the present invention also has other beneficial effects, will propose in the lump with corresponding structure in an embodiment.
Accompanying drawing explanation
Fig. 1 is hydraulic electromagnetic change valve main structure schematic diagram of the present invention;
Fig. 2 is the magnetic sleeve inner member main structure schematic diagram in the present invention;
Fig. 3 is one of the armature main structure in the present invention schematic perspective view;
Fig. 4 is two schematic perspective views of the armature main structure in the present invention;
In figure: 1. magnetic core; 2. magnetic core banking stop; 3. pad; 4. magnetic sleeve; 5. reaction spring; 6. armature; 7. push rod; 8. outside hand push rod mount inlet; 9. hand push rod; 10. internal cavities; 11. through holes; 12. reaction spring installation cavitys; 14,15. pilot grooves; 16. valve bodies; 17. coils; 18. fastening nuts; 19. limited steps.
Embodiment
Below in conjunction with drawings and Examples, invention is further illustrated:
Embodiment 1: a kind of hydraulic electromagnetic change valve, see Fig. 1, Fig. 2, Fig. 3; It comprises valve body 16, correspondence is arranged at spool 1 in this valve body, the magnetic sleeve 4 that connect corresponding to valve body 16 and the corresponding armature 6 be arranged in the internal cavities 10 of magnetic sleeve 4, push rod 7; In magnetic sleeve 4, be also provided with reaction spring 5, and the interior also correspondence of magnetic sleeve 4 is provided with limited step 19, one end of described reaction spring 5 contacts with described limited step 19 is corresponding, and its other end contacts with described magnetic core 1 is corresponding via magnetic core banking stop 2; The diameter of described magnetic core banking stop 2 is identical with the external diameter of the end of described magnetic sleeve 4.Between described magnetic core banking stop 2 and described reaction spring 5, be also provided with pad 3, and described magnetic core banking stop 2 is placed on the end of described magnetic core 1, and when reaction spring extrudes by magnetic core, the inside in described reaction spring is stretched in the end of described magnetic core simultaneously.The corresponding end of described reaction spring 5 connects via described pad 3 is corresponding with described magnetic core banking stop 2, the generation of inconsistent phenomenon between reaction spring and magnetic core banking stop can be avoided via this pad, the transmitting force between reaction spring and magnetic core is transmitted along its axial direction; The opposite force of described reaction spring 5 can be put on magnetic core by pad, magnetic core banking stop 2 with this.Most important innovation and creation point is, the armature 6 in the present invention, push rod 7 are two independently parts; Described push rod 7 correspondence is arranged in described magnetic sleeve 4, and one end of this push rod 7 is used for connecting with corresponding contact the in the end of described spool 1, and its other end is used for contacting with described armature 6 connecting; This armature 6 is cylindrical structure; And offer along its axial direction the pilot groove 14 that two are communicated with armature 6 two end part on the outer wall of armature 6; Described two pilot grooves 14,15 are about the axisymmetrical of armature 6.Back pressure when armature moves can be reduced by this pilot groove, make this armature be easier to mobile, mobile light and flexible, stable; Also be provided with between reaction spring installation cavity 12 and described internal cavities 10 its cross-sectional diameter be less than both diameters, for balancing the through hole 11 of described push rod 7, the internal diameter of this through hole 11 can slightly larger than the diameter of 1 mm-3 mm of push rod 7, and the length of this through hole 11 is greater than 1/3 length of described push rod 7; By this through hole particularly when this selector valve horizontal position is placed, can push rod be balanced, the two ends of its push rod are better contacted with armature, magnetic core.Further, be also provided with the hand push rod mount inlet that be communicated with corresponding to described internal cavities 10 in the end of the magnetic sleeve 4 away from valve body 16 end, and and correspondence is provided with hand push rod 9 in described hand push rod mount inlet.And coil 17 correspondence of this selector valve is installed on described magnetic sleeve 4, and 8 be also provided with fastening nut 18 outside the hand push rod mount inlet of described magnetic sleeve 4 end, described fastening nut is connected with the end thread of described magnetic sleeve.As shown in Figure 1, then the valve body both sides of this selector valve are provided with structure of the present invention, at work, via on the right side of armature 6() to magnetic core side 1 to movement, promote the movement that described push rod 7 promotes described magnetic core 1; And when needing magnetic core to be back to initial position, the reaction spring through extruding on the left of valve body and and apply opposite force with the left end to magnetic core banking stop, magnetic core that coordinates of the armature in left side, and then promote the movement of described magnetic core 1.
Embodiment 2, and as shown in Figures 1 to 4, repeat no more with embodiment 1 something in common, difference is, described armature is also cylindrical structure, and in armature 6, offer the through hole 20 that two are communicated with armature 6 two end part; This two through hole is about the axisymmetrical of be set forth in armature 6.
Although what embodiments of the invention were announced is preferred embodiment, is not limited thereto; those of ordinary skill in the art, very easily according to above-described embodiment, understands the spirit of invention; and make different amplifications and change, but only however depart from invention spirit, all invention protection domain in.
Claims (10)
1. a hydraulic electromagnetic change valve, comprises valve body (16), correspondence is arranged at spool (1) in this valve body, the magnetic sleeve (4) that connect corresponding to described valve body (16) and the corresponding armature (6) be arranged in described magnetic sleeve (4) internal cavities (10), push rod (7); Its feature in: described armature (6), push rod (7) are two independently parts; Described push rod (7) correspondence is arranged in described magnetic sleeve (4), and one end of this push rod (7) is used for connect corresponding with the end of described spool (1), and its other end is used for being connected with described armature (6); Via the movement of described armature (6) to magnetic core (1) direction, promote the movement that described push rod (7) promotes described magnetic core (1).
2. hydraulic electromagnetic change valve as claimed in claim 1, is characterized in that: described armature (6) is cylindrical structure; And at least one pilot groove (14) being communicated with armature (6) two end part is offered along its axial direction on the outer wall of described armature (6); Or in described armature (6), offer at least one through hole (20) being communicated with armature (6) two end part.
3. hydraulic electromagnetic change valve as claimed in claim 2, it is characterized in that: described pilot groove (14,15) is two, and these two pilot grooves (14,15) is about the axisymmetrical of described armature (6); Described through hole (20) is two, and about the axisymmetrical of be set forth in armature (6).
4. hydraulic electromagnetic change valve as claimed in claim 1, it is characterized in that: in described magnetic sleeve (4), be also provided with reaction spring (5), and the interior also correspondence of described magnetic sleeve (4) is provided with limited step (19), one end of described reaction spring (5) contacts with described limited step (19) is corresponding, and its other end contacts with described magnetic core (1) is corresponding via magnetic core banking stop (2); Reaction spring (5) through extruding applies opposite force to described magnetic core banking stop (2), and then promotes the movement of described magnetic core (1).
5. hydraulic electromagnetic change valve as claimed in claim 4, it is characterized in that: described magnetic core banking stop (2) is placed on the end of described magnetic core (1), and when reaction spring extrudes by magnetic core, the inside in described reaction spring is stretched in the end of described magnetic core.
6. hydraulic electromagnetic change valve as claimed in claim 4, is characterized in that: the diameter of described magnetic core banking stop (2) is identical with the outer end diameter of described magnetic sleeve (4).
7. hydraulic electromagnetic change valve as claimed in claim 6, it is characterized in that: between described magnetic core banking stop (2) and described reaction spring (5), be also provided with pad (3), the corresponding end of described reaction spring (5) applies opposite force via described pad (3) to described magnetic core banking stop (2).
8. hydraulic electromagnetic change valve as claimed in claim 6, it is characterized in that: be also provided with between reaction spring installation cavity (12) and described internal cavities (10) its cross-sectional diameter be less than both diameters, for balancing the through hole (11) of described push rod (7), and the length of this through hole (11) is greater than 1/3 length of described push rod (7).
9. hydraulic electromagnetic change valve as claimed in claim 1, it is characterized in that: be also provided with the hand push rod mount inlet that be communicated with corresponding to described internal cavities (10) in the end of the magnetic sleeve (4) held away from valve body (16), and and correspondence is provided with hand push rod (9) in described hand push rod mount inlet.
10. hydraulic electromagnetic change valve as claimed in claim 1, it is characterized in that: coil (17) correspondence is installed on described magnetic sleeve (4), and (8) are also provided with fastening nut (18) outside the hand push rod mount inlet of described magnetic sleeve (4) end, described fastening nut is connected with the end thread of magnetic sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410738298.6A CN104455657B (en) | 2014-12-08 | 2014-12-08 | Hydraulic electromagnetic change valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410738298.6A CN104455657B (en) | 2014-12-08 | 2014-12-08 | Hydraulic electromagnetic change valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104455657A true CN104455657A (en) | 2015-03-25 |
| CN104455657B CN104455657B (en) | 2016-10-05 |
Family
ID=52902174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410738298.6A Active CN104455657B (en) | 2014-12-08 | 2014-12-08 | Hydraulic electromagnetic change valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104455657B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321939A (en) * | 2016-10-10 | 2017-01-11 | 合肥协力液压科技有限公司 | Electromagnetic reversing valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008028802A1 (en) * | 2006-09-08 | 2008-03-13 | Schaeffler Kg | Electromagnetic actuation unit |
| CN201568622U (en) * | 2009-12-02 | 2010-09-01 | 贵州红林机械有限公司 | Fuel cock vale with double coils |
| CN202434283U (en) * | 2011-12-28 | 2012-09-12 | 宁波市鄞州通力液压电器厂 | Explosion-proof electromagnet |
| CN202469165U (en) * | 2012-03-23 | 2012-10-03 | 常德中联重科液压有限公司 | Solenoid valve |
| CN102878130A (en) * | 2011-07-11 | 2013-01-16 | 上海立新液压有限公司 | Electrically modulated proportional throttle control valve |
| CN203202300U (en) * | 2013-04-23 | 2013-09-18 | 河南航天液压气动技术有限公司 | Electromagnetic reversing valve |
| CN204267841U (en) * | 2014-12-08 | 2015-04-15 | 江西省唯欣高科精密五金有限公司 | Hydraulic electromagnetic change valve |
-
2014
- 2014-12-08 CN CN201410738298.6A patent/CN104455657B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008028802A1 (en) * | 2006-09-08 | 2008-03-13 | Schaeffler Kg | Electromagnetic actuation unit |
| CN201568622U (en) * | 2009-12-02 | 2010-09-01 | 贵州红林机械有限公司 | Fuel cock vale with double coils |
| CN102878130A (en) * | 2011-07-11 | 2013-01-16 | 上海立新液压有限公司 | Electrically modulated proportional throttle control valve |
| CN202434283U (en) * | 2011-12-28 | 2012-09-12 | 宁波市鄞州通力液压电器厂 | Explosion-proof electromagnet |
| CN202469165U (en) * | 2012-03-23 | 2012-10-03 | 常德中联重科液压有限公司 | Solenoid valve |
| CN203202300U (en) * | 2013-04-23 | 2013-09-18 | 河南航天液压气动技术有限公司 | Electromagnetic reversing valve |
| CN204267841U (en) * | 2014-12-08 | 2015-04-15 | 江西省唯欣高科精密五金有限公司 | Hydraulic electromagnetic change valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321939A (en) * | 2016-10-10 | 2017-01-11 | 合肥协力液压科技有限公司 | Electromagnetic reversing valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104455657B (en) | 2016-10-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 343200 Ji'an city of Jiangxi province Anfu Industrial Zone industrial base hydraulic electromechanical Yu Yuan Road No. 8 Applicant after: JIANGXI VXIN HIGH-TECH PRECISION HARDWARE CO., LTD. Address before: 343200 Ji'an city of Jiangxi province Anfu Industrial Zone industrial base hydraulic electromechanical Yu Yuan Road No. 8 Applicant before: JIANGXI WEIXIN HI-TECH PRECISION HARDWARE CO., LTD. |
|
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 343200 No. 8 Yuyuan North Road, Hydraulic Mechanical and Electrical Industry Base, Anfu Industrial Zone, Ji'an City, Jiangxi Province Patentee after: Jiangxi Weixin Gaoke Oil Pressure Technology Co., Ltd. Address before: 343200 No. 8 Yuyuan North Road, Hydraulic Mechanical and Electrical Industry Base, Anfu Industrial Zone, Ji'an City, Jiangxi Province Patentee before: JIANGXI VXIN HIGH-TECH PRECISION HARDWARE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |