CN204267841U - Hydraulic electromagnetic change valve - Google Patents
Hydraulic electromagnetic change valve Download PDFInfo
- Publication number
- CN204267841U CN204267841U CN201420760297.7U CN201420760297U CN204267841U CN 204267841 U CN204267841 U CN 204267841U CN 201420760297 U CN201420760297 U CN 201420760297U CN 204267841 U CN204267841 U CN 204267841U
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- CN
- China
- Prior art keywords
- armature
- push rod
- magnetic core
- electromagnetic change
- described magnetic
- Prior art date
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- Withdrawn - After Issue
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Abstract
The utility model relates to a kind of hydraulic electromagnetic change valve, be intended to the technical problem that stuck phenomenon appears in armature at work that solve in current hydraulicdirectional control 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, model utility has stable, that armature stuck phenomenon problem can be avoided to occur advantage.
Description
Technical field
The utility model relates to a kind of solenoid valve, particularly relates 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 purpose of this utility model is to overcome the deficiencies in the prior art, adapts to reality need, provides a kind of hydraulic electromagnetic change valve, occur the technical problem of stuck phenomenon with the armature solved in current hydraulicdirectional control valve at work.
In order to realize the object of model utility, the technological scheme that the utility model adopts 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 described 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.
The beneficial effects of the utility model are:
1. model utility people of the present utility model 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, model utility people of the present utility model finally have found the method solving this problem by test of many times, namely the connection by push rod and armature of the present utility model 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 utility model 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 utility model 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 utility model;
Fig. 2 is the magnetic sleeve inner member main structure schematic diagram in the utility model;
Fig. 3 is one of the armature main structure in the utility model schematic perspective view;
Fig. 4 is two schematic perspective views of the armature main structure in the utility model;
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, model utility 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 model utility is created point and is, the armature 6 in the utility model, 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 utility model, 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 described armature 6.
Although; what embodiment of the present utility model announced is preferred embodiment; but be not limited thereto; those of ordinary skill in the art; very easily according to above-described embodiment, understand the spirit of model utility, and make different amplifications and change; but only otherwise depart from the spirit of model utility, all in the protection domain of model utility.
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 described 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 |
|---|---|---|---|
| CN201420760297.7U CN204267841U (en) | 2014-12-08 | 2014-12-08 | Hydraulic electromagnetic change valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420760297.7U CN204267841U (en) | 2014-12-08 | 2014-12-08 | Hydraulic electromagnetic change valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204267841U true CN204267841U (en) | 2015-04-15 |
Family
ID=52802710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420760297.7U Withdrawn - After Issue CN204267841U (en) | 2014-12-08 | 2014-12-08 | Hydraulic electromagnetic change valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204267841U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455657A (en) * | 2014-12-08 | 2015-03-25 | 江西省维欣高科精密五金有限公司 | Hydraulic electromagnetic directional valve |
-
2014
- 2014-12-08 CN CN201420760297.7U patent/CN204267841U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455657A (en) * | 2014-12-08 | 2015-03-25 | 江西省维欣高科精密五金有限公司 | Hydraulic electromagnetic directional valve |
| CN104455657B (en) * | 2014-12-08 | 2016-10-05 | 江西省唯欣高科精密五金有限公司 | Hydraulic electromagnetic change 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: 20150415 Effective date of abandoning: 20161005 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |