CN204127327U - The hydraulic pressure large discharge high-speed figure valve that solenoid valve is mid- - Google Patents
The hydraulic pressure large discharge high-speed figure valve that solenoid valve is mid- Download PDFInfo
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- CN204127327U CN204127327U CN201420593553.8U CN201420593553U CN204127327U CN 204127327 U CN204127327 U CN 204127327U CN 201420593553 U CN201420593553 U CN 201420593553U CN 204127327 U CN204127327 U CN 204127327U
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- Prior art keywords
- valve body
- valve
- spool
- armature
- hydraulic pressure
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- 125000006850 spacer group Chemical group 0.000 claims abstract description 15
- 239000000696 magnetic material Substances 0.000 claims abstract description 4
- 230000035699 permeability Effects 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 26
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 abstract description 24
- 230000000694 effects Effects 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000010720 hydraulic oil Substances 0.000 description 10
- 230000008676 import Effects 0.000 description 9
- 239000003921 oil Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000004044 response Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000002153 concerted effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model relates to Solenoid Valve Technology field, especially relates to the hydraulic pressure large discharge high-speed figure valve that a kind of solenoid valve is mid-.Comprise valve body and be slidably mounted on the spool in described valve body, the rear end of spool is set with columned moving armature, be provided with in the valve body at moving armature rear and determine armature, the spacer that valve body comprises front valve shell, rear valve body and is arranged between front valve shell and rear valve body, front valve shell and rear valve body are that permeability magnetic material is made, and spacer is made up of NULL; The interface determining armature and moving armature is positioned at the overlay area of spacer; Toroid assembly is separately had to be sleeved on the outside of valve body.Electromagnetic coil is positioned at the stage casing of valve body, and overall structure is compacter; The position of determining armature can be adjusted easily, thus finely tune the gap of fixed and moving armature; Improve sealing effect while the inclination angle of spool and valve body junction tapering surface not etc. guarantees spool stress balance, the leakage that sealing surface uneven wear causes can be avoided.
Description
technical field
The utility model relates to Solenoid Valve Technology field, especially relates to the hydraulic pressure large discharge high-speed figure valve that a kind of solenoid valve is mid-.
background technique
Along with improving constantly of Hydraulic Field automatization level, the demand for high-speed figure valve is day by day urgent.Hydraulic pressure unbalanced force increases with the increase of spool size, and can have a strong impact on the motion of spool.Therefore the valve core diameter of current high-speed figure valve can not be too large, and namely flow is very little.Typical products working pressure 20MPa, flow is 2 ~ 9 liters/min only, frequency response 5ms.Obviously, distance engineering hydraulic system flow reaches a few hectolitre per minute, and even higher requirement gap is very far away.Chinese patent 2013101571439 discloses one " hydraulic pressure large discharge high-speed figure valve ", comprise valve body and be slidably mounted on the spool in described valve body, one end of spool is provided with sealing surface and matches with the sealing surface in described valve body and forms seal interface, the both sides of seal interface are respectively arranged with oil inlet passage and oil outlet, oil inlet passage is between described valve body and spool and around spool, making described digital valve descend the effect of hydraulic pressure oil-feed to described spool to make a concerted effort in off position is zero, and described oil outlet is positioned at one end of described valve body.Its oil outlet pressure is delivered to pressure balance chamber by passage, and the suffered axial force of spool makes a concerted effort to be zero.Therefore, the design of spool size is no longer subject to the restriction of hydraulic pressure, can realize large discharge digital valve, and under the effect of electromagnetic force and spring force, realizes responding fast.This digital valve exists and to have much room for improvement as follows part, 1) electromagnet and electromagnetic coil are all positioned at the end of valve body, and electromagnetic efficiency is low; 2) valve body adopts face to contact with the sealing of spool, and difficulty of processing is large, along with surface of contact uneven wear, easily occurs the problem be not closed completely; And, the sealing surface of face contact, cause in valve closed condition, the hydraulic oil in oil outlet acts on the area on spool closing direction, will be greater than the area of opening direction, hydraulic oil is to non-vanishing with joint efforts in moving direction of spool, by producing the power making spool close, the motion of spool being restricted, even can not opening, therefore this structure can only be used in the little hydraulic control of outlet pressure, and use is restricted.
summary of the invention
Technical problem to be solved in the utility model is: provide the hydraulic pressure large discharge high-speed figure valve that electromagnetic efficiency is high, the solenoid valve of good sealing effect is mid-, not only can realize import high pressure, export the control of the hydraulic oil of low pressure, also can be used for import high pressure, export the control of the hydraulic oil of high pressure.
For solving the problems of the technologies described above, the technical solution of the utility model is: the mid-hydraulic pressure large discharge high-speed figure valve of solenoid valve described in the utility model comprises valve body and is slidably mounted on the spool in described valve body, described spool is column structure, the rear end of spool is set with columned moving armature, be provided with in the valve body at described moving armature rear and determine armature, describedly determine to be provided with spring between armature and spool, the center of spool is provided with pre-and post perforative through hole, described valve body is provided with liquid entering hole and liquid outlet, described liquid entering hole is arranged around spool, described liquid outlet is positioned at one end of valve body, be positioned on the axis of spool, described valve body comprises front valve shell, rear valve body and the spacer be arranged between front valve shell and rear valve body, described front valve shell and rear valve body are that permeability magnetic material is made, described spacer is made up of NULL, the described interface determining armature and moving armature is positioned at the overlay area of spacer, separately have toroid assembly to be sleeved on the outside of valve body, described spacer is arranged in the inner chamber of coil block, and the rear end of front valve shell and the front end of rear valve body are plugged on the two ends of coil block cavity respectively.
Described rear valve body be both ends open, rear end with externally threaded tubular structure, the rear end of rear valve body has been threaded connection end cap, and the described positioning ring of rear end with projection determining armature, is provided with adjustment pad between described positioning ring and rear valve body.
Be provided with gap between described moving armature and the inwall of valve body, described spool is provided with pressure compensation opening, and described pressure compensation opening is communicated with the inner chamber of spool and the gap between moving armature and valve body.
Described front end of determining armature is provided with spring mounting hole, is provided with rear wear-resisting steel bushing in described spring mounting hole, is provided with front wear-resisting steel bushing in the inner chamber of described moving armature, and described spring is arranged in front wear-resisting steel bushing and rear wear-resisting steel bushing.
The front end of described spool is provided with the male cone (strobilus masculinus) of outer chamfering shape, is provided with the dashpot of the annular being communicated with liquid entering hole in the inner chamber of front valve shell, and the front end of described dashpot is provided with the inner conical surface of coupling male cone (strobilus masculinus), and the inclination angle of described inner conical surface is less than the inclination angle of male cone (strobilus masculinus).
Be provided with the boss around spool in the inner chamber of described front valve shell, the front end of described boss is provided with the inner conical surface of interior chamfering shape, and described spool is provided with the dashpot of the annular being communicated with liquid entering hole, and described inclination angle is greater than the inclination angle of male cone (strobilus masculinus).
Have employed technique scheme, the beneficial effects of the utility model are: electromagnetic coil is positioned at the stage casing of valve body, and overall structure is compacter; Electromagnetic efficiency is high; Sealing effect is improve while the inclination angle of spool and valve body junction tapering surface not etc. guarantees spool stress balance, the leakage that sealing surface uneven wear causes can be avoided, because sealing surface adopts line contact sealing, sealing strip area is close to zero, the imbalance of hydraulic pressure can not be caused, therefore this valve not only can realize import high pressure, export the control of the hydraulic oil of low pressure, also can be used for import high pressure, export the control of the hydraulic oil of high pressure; The design of spool size is no longer subject to the restriction of hydraulic pressure, can realize large discharge, respond fast.
accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the A portion structure for amplifying schematic diagram of Fig. 1.
Fig. 3 is the structural representation of another embodiment of the utility model.
Fig. 4 is the B portion structure for amplifying schematic diagram of Fig. 3.
embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Embodiment 1:
As shown in Figure 1, the mid-hydraulic pressure large discharge high-speed figure valve of solenoid valve comprises valve body and is slidably mounted on the spool 2 in described valve body, described spool 2 is column structure, the rear end of spool 2 is set with columned moving armature 22, be provided with in the valve body at described moving armature 22 rear and determine armature 6, describedly determine to be provided with spring 5 between armature 6 and spool 2, the center of spool 2 is provided with pre-and post perforative through hole 21, described valve body is provided with liquid entering hole 3 and liquid outlet 4, described liquid entering hole 3 is arranged around spool 2, described liquid outlet 4 be positioned at valve body one end, be positioned on the axis of spool 2.When valve open, liquid enters the inner chamber of valve body by liquid entering hole 3, then is discharged by liquid outlet 4, and the liquid of spool 2 front end can import in the cavity of spool 2 rear end by through hole 21, makes spool 2 stress balance, reduces its running resistance, improves speed of response.
The spacer 12 that described valve body comprises front valve shell 1, rear valve body 11 and is arranged between front valve shell 1 and rear valve body 11, described front valve shell 1 and rear valve body 11 are made for permeability magnetic material, described spacer 12 is made up of NULL, adopts welding or technique for sticking three to be connected in one; The described interface determining armature 6 and moving armature 22 is positioned at the overlay area of spacer 12; Separately have toroid assembly 7 to be sleeved on the outside of valve body, described spacer 12 is arranged in the inner chamber of coil block 7, and the rear end of front valve shell 1 and the front end of rear valve body 11 are plugged on the two ends of coil block 7 cavity respectively.Described rear valve body 11 be both ends open, rear end with externally threaded tubular structure, the rear end of rear valve body 11 has been threaded connection end cap 8, and the described positioning ring of rear end with projection determining armature 6, is provided with between described positioning ring and rear valve body 11 and adjusts pad 16.The stage casing that coil block 7 is arranged on spool not only reduces integrally-built length, makes structure compacter, also abdicates the space of determining armature rear end, can finely tune the position of determining armature 6, thus adjusts the working clearance of fixed and moving armature, makes it be operated in the optimum state.In the present embodiment, screw off end cap 8, namely by increasing the working clearance of the fixed and moving armature of adjustment pad 16 i.e. adjustable of different-thickness.
Be provided with gap between described moving armature 22 and the inwall of valve body, described spool 2 is provided with pressure compensation opening 23, and described pressure compensation opening 23 is communicated with the inner chamber of spool 2 and the gap between moving armature 22 and valve body.When valve open, liquid can enter gap between moving armature 22 and valve body by the through hole 21 at spool 2 center and pressure compensation opening 23, makes spool 2 stress balance, reduces the resistance that spool 2 moves, and is conducive to the speed of response improving spool.
Described front end of determining armature 6 is provided with spring mounting hole, is provided with rear wear-resisting steel bushing 61 in described spring mounting hole, is provided with front wear-resisting steel bushing 24 in the inner chamber of described moving armature 22, and described spring 5 is arranged in front wear-resisting steel bushing 24 and rear wear-resisting steel bushing 61.Front wear-resisting steel bushing 24 and rear wear-resisting steel bushing 61 adopt high strength, the steel of high abrasion are made, moving armature 22 is with when determining armature 6 adhesive, front wear-resisting steel bushing 24 directly contacts with rear wear-resisting steel bushing 61, collides, and causes the change of running parameter after the more weak armature of intensity can be avoided to wear and tear.In valve open, moving armature 22 process with movable valve plug 2 movement backward, the wear-resisting steel bushing 61 of front wear-resisting steel bushing 24 collision rift, plays spacing effect.
As shown in Figure 2, the front end of described spool 2 is provided with the male cone (strobilus masculinus) 25 of outer chamfering shape, the dashpot 31 of the annular being communicated with liquid entering hole 3 is provided with in the inner chamber of front valve shell 1, the front end of described dashpot 31 is provided with the inner conical surface 34 of coupling male cone (strobilus masculinus) 25, and the inclination angle E of described inner conical surface 34 is less than the inclination angle F of male cone (strobilus masculinus) 25.The present embodiment is normal close type valve, spool 2 moves to front end, when valve closing, male cone (strobilus masculinus) 25 mates to be formed with inner conical surface 34 and seals, due to two conical surfaces inclination angle not etc., sealing is herein resisted against inner conical surface 34 by the outermost knuckle of male cone (strobilus masculinus) 25 and is formed, it is the sealing that annular wire and conical surface are formed, there is processing simple, the feature of good sealing effect, because sealing surface adopts line contact sealing, sealing strip area is close to zero, the imbalance of hydraulic pressure can not be caused, therefore this valve not only can realize import high pressure, the control of the hydraulic oil of outlet low pressure, also import high pressure can be used for, the control of the hydraulic oil of outlet high pressure.
The present embodiment is normal close type valve, and time electromagnetic coil 7 is idle, spool 2 is pushed to front end by the elastic force of spring 5, and male cone (strobilus masculinus) 25 and inner conical surface 34 are formed and seal, and fluid passage is truncated, and valve is in closed condition; Otherwise produce magnetic force when electromagnetic coil 7 obtains electric, the spring band movable valve plug 2 that moving armature 22 overcomes spring 5 under magnetic force moves backward, and liquid can enter liquid outlet 4 by liquid entering hole 3, and valve is in open mode.
Embodiment 2:
As shown in Figure 3, be provided with the boss 9 around spool 2 in the inner chamber of described front valve shell 1, the front end of described boss 9 is provided with the inner conical surface 34 of interior chamfering shape, and described spool 2 is provided with the dashpot 31 of the annular being communicated with liquid entering hole 3.As shown in Figure 4, the front end of described dashpot 31 is provided with the male cone (strobilus masculinus) 25 of coupling inner conical surface 34, and the inclination angle G of described inner conical surface 34 is greater than the inclination angle H of male cone (strobilus masculinus) 25.The present embodiment is open type valve, spool 2 moves to rear end, when valve closing, male cone (strobilus masculinus) 25 mates to be formed with inner conical surface 34 and seals, due to two conical surfaces inclination angle not etc., sealing herein by inner conical surface 34 the knuckle of inner side be resisted against on male cone (strobilus masculinus) 25 and formed, it is the sealing that annular wire and conical surface are formed, there is processing simple, the feature of good sealing effect, because sealing surface adopts line contact sealing, sealing strip area is close to zero, the imbalance of hydraulic pressure can not be caused, therefore this valve not only can realize import high pressure, the control of the hydraulic oil of outlet low pressure, also import high pressure can be used for, the control of the hydraulic oil of outlet high pressure.
In addition, cause the change of running parameter after wearing and tearing for avoiding moving armature 22, the present embodiment fixedly mounts wear-resisting steel loop 33 in the front end of moving armature 22, and wear-resisting steel loop 33 is made up of the material of high strength, high abrasion.In the process that valve open, moving armature 22 move ahead with movable valve plug 2, wear-resisting steel loop 33 collides the rear end of boss 9, plays spacing effect.
Other part-structures of the present embodiment are with embodiment 1.
Claims (6)
1. the hydraulic pressure large discharge high-speed figure valve that solenoid valve is mid-, comprise valve body and be slidably mounted on the spool (2) in described valve body, described spool (2) is column structure, the rear end of spool (2) is set with columned moving armature (22), be provided with in the valve body at described moving armature (22) rear and determine armature (6), describedly determine to be provided with spring (5) between armature (6) and spool (2), the center of spool (2) is provided with pre-and post perforative through hole (21), described valve body is provided with liquid entering hole (3) and liquid outlet (4), described liquid entering hole (3) is arranged around spool (2), described liquid outlet (4) is positioned at one end of valve body, be positioned on the axis of spool (2), it is characterized in that: described valve body comprises front valve shell (1), rear valve body (11) and the spacer (12) be arranged between front valve shell (1) and rear valve body (11), described front valve shell (1) and rear valve body (11) are made for permeability magnetic material, described spacer (12) is made up of NULL, the described interface determining armature (6) and moving armature (22) is positioned at the overlay area of spacer (12), separately have toroid assembly (7) to be sleeved on the outside of valve body, described spacer (12) is arranged in the inner chamber of coil block (7), and the rear end of front valve shell (1) and the front end of rear valve body (11) are plugged on the two ends of coil block (7) cavity respectively.
2. the hydraulic pressure large discharge high-speed figure valve that solenoid valve according to claim 1 is mid-, it is characterized in that: described rear valve body (11) is both ends open, rear end is with externally threaded tubular structure, the rear end of rear valve body (11) has been threaded connection end cap (8), the described positioning ring of rear end with projection determining armature (6), is provided with between described positioning ring and rear valve body (11) and adjusts pad (16).
3. the hydraulic pressure large discharge high-speed figure valve that solenoid valve according to claim 1 and 2 is mid-, it is characterized in that: between described moving armature (22) and the inwall of valve body, be provided with gap, described spool (2) is provided with pressure compensation opening (23), and described pressure compensation opening (23) is communicated with the inner chamber of spool (2) and the gap between moving armature (22) and valve body.
4. the hydraulic pressure large discharge high-speed figure valve that solenoid valve according to claim 1 and 2 is mid-, it is characterized in that: described front end of determining armature (6) is provided with spring mounting hole, rear wear-resisting steel bushing (61) is installed in described spring mounting hole, be provided with front wear-resisting steel bushing (24) in the inner chamber of described moving armature (22), described spring (5) is arranged in front wear-resisting steel bushing (24) and rear wear-resisting steel bushing (61).
5. the hydraulic pressure large discharge high-speed figure valve that solenoid valve according to claim 1 and 2 is mid-, it is characterized in that: the front end of described spool (2) is provided with the male cone (strobilus masculinus) (25) of outer chamfering shape, the dashpot (31) of the annular being communicated with liquid entering hole (3) is provided with in the inner chamber of front valve shell (1), the front end of described dashpot (31) is provided with the inner conical surface (34) of coupling male cone (strobilus masculinus) (25), and the inclination angle (E) of described inner conical surface (34) is less than the inclination angle (F) of male cone (strobilus masculinus) (25).
6. the hydraulic pressure large discharge high-speed figure valve that solenoid valve according to claim 1 and 2 is mid-, it is characterized in that: in the inner chamber of described front valve shell (1), be provided with the boss (9) around spool (2), the front end of described boss (9) is provided with the inner conical surface (34) of interior chamfering shape, described spool (2) is provided with the dashpot (31) of the annular being communicated with liquid entering hole (3), the front end of described dashpot (31) is provided with the male cone (strobilus masculinus) (25) of coupling inner conical surface (34), and the inclination angle (G) of described inner conical surface (34) is greater than the inclination angle (H) of male cone (strobilus masculinus) (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420593553.8U CN204127327U (en) | 2014-10-15 | 2014-10-15 | The hydraulic pressure large discharge high-speed figure valve that solenoid valve is mid- |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420593553.8U CN204127327U (en) | 2014-10-15 | 2014-10-15 | The hydraulic pressure large discharge high-speed figure valve that solenoid valve is mid- |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204127327U true CN204127327U (en) | 2015-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420593553.8U Expired - Fee Related CN204127327U (en) | 2014-10-15 | 2014-10-15 | The hydraulic pressure large discharge high-speed figure valve that solenoid valve is mid- |
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| Country | Link |
|---|---|
| CN (1) | CN204127327U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315159A (en) * | 2014-10-15 | 2015-01-28 | 潍坊力创电子科技有限公司 | Hydraulic high-flow high-speed digital valve with solenoid valve arranged in middle |
| CN108167503A (en) * | 2017-11-29 | 2018-06-15 | 北京宇航系统工程研究所 | A kind of high-pressure large-caliber solenoid valve response time control method |
-
2014
- 2014-10-15 CN CN201420593553.8U patent/CN204127327U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315159A (en) * | 2014-10-15 | 2015-01-28 | 潍坊力创电子科技有限公司 | Hydraulic high-flow high-speed digital valve with solenoid valve arranged in middle |
| CN104913099A (en) * | 2014-10-15 | 2015-09-16 | 潍坊力创电子科技有限公司 | Conical sealing type hydraulic large-flow high-speed digital valve |
| CN104913099B (en) * | 2014-10-15 | 2017-06-20 | 潍坊力创电子科技有限公司 | Conical surface seal type hydraulic pressure big flow high-speed figure valve |
| CN108167503A (en) * | 2017-11-29 | 2018-06-15 | 北京宇航系统工程研究所 | A kind of high-pressure large-caliber solenoid valve response time control method |
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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 |
Granted publication date: 20150128 Termination date: 20151015 |
|
| EXPY | Termination of patent right or utility model |