CN203548400U - Electromagnetic valve with state feedback function - Google Patents
Electromagnetic valve with state feedback function Download PDFInfo
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- CN203548400U CN203548400U CN201320775435.4U CN201320775435U CN203548400U CN 203548400 U CN203548400 U CN 203548400U CN 201320775435 U CN201320775435 U CN 201320775435U CN 203548400 U CN203548400 U CN 203548400U
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- state feedback
- electromagnet
- feedback device
- position switch
- valve
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- 239000007788 liquid Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008713 feedback mechanism Effects 0.000 description 2
- 230000005426 magnetic field effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
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- 230000032683 aging Effects 0.000 description 1
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- 230000005674 electromagnetic induction Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
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Abstract
The utility model relates to an electromagnetic valve with the state feedback function. The electromagnetic valve comprises a left electromagnet, a right electromagnet and a valve body, wherein a valve element is arranged in the valve body. The electromagnetic valve is characterized in that the end face of one electromagnet is provided with a state feedback device or the end faces of the two electromagnets are respectively provided with a state feedback device; the two ends of the valve element are connected with a left electromagnetic armature and a right electromagnetic armature respectively, the valve element and the left electromagnetic armature and the right electromagnetic armature are installed in the valve body in the mode of a whole shaft, and a shaft core of the electromagnet at the connection end of each state feedback device stretches into the state feedback device; each state feedback device comprises a shell and an electromagnetic valve plug, a position switch, a connecting bar mechanism and a conical sleeve fixedly arranged on the shaft core in a sleeved mode are arranged in the shell, the position switch is arranged above the connecting bar mechanism and the movable sleeve, one end of the connecting bar mechanism is fixed to the position switch, and the other end of the connecting bar mechanism makes contact with the outer surface of the conical sleeve. The electromagnetic valve has the features of both traditional machinery and electric control, and is compact in overall structure, convenient to install, high in adaptability and suitable for various valve state monitoring occasions.
Description
Technical field
The utility model belongs to solenoid valve, particularly a kind of solenoid valve that possesses state feedback function.
Background technique
It is more common in hydraulic system that solenoid valve belongs to, widely used a kind of hydraulic control component, its structure mainly comprises electromagnetic coil, armature, valve body and spool etc., its working principle is to be switched on and produced the inner armature of field drives by electromagnetic coil, and then the valve core of the electromagnetic valve motion that is integrally connected of drive and armature, realize under the various functional states of solenoid valve the function of different hydraulic fluid port conductings and disconnection on corresponding valve body.
Traditional solenoid valve reaches in its precision prescribed situation and can well realize its function at working medium, but along with the long-term operation of hydraulic system, internal system unavoidably can produce impurity, solenoid valve self inner member also can exist aging and impaired simultaneously, these factors all can cause the motion of valve core of the electromagnetic valve self to be obstructed, respond slack-off, but in hydraulic system, without any supervisory device, monitor this state of solenoid valve, the actual working state of this key position of spool in solenoid valve cannot be reflected, this is quite fatal for hydraulic system, especially for the solenoid valve that works in core position, occur that damage sequence is even more serious, such as playing solenoid valve of safe Unloading Control function etc. in the solenoid valve of the hand/automatic function switching solenoid valve in hydropower industry speed regulator hydraulic system and emergency stop function and chemical industry, during the solenoid valve disabler of these key positions, can cause whole hydraulic system to break down, affect other relevant machinery or electrical systems simultaneously.
The demand of valve core of the electromagnetic valve motion state being monitored in real time for special occasions, domestic and international all multiple enterprises and research unit all attempt adding feedback of status supervisory device on electromagnetic valve structure basis, for Real-Time Monitoring and the feedback of electromagnetic valve work process valve core movement state.The working principle of most of feedback means is that spool is connected with electromagnet armature on the market, by active position switch, valve element position signal is transferred out to deciphering.This class feedback means has higher requirement for valve self; simultaneous adaptation ability slightly a little less than; active position switch receives, signal transmission exists limitation, can not meet the control requirement of Monitoring and Control System for Hydropower Station and protective system, and can not adapt to the compatibility requirement of hydraulic control valve class and signal transmission control.
Summary of the invention
The utility model provides a kind of solenoid valve of carrier state feedback means according to the deficiencies in the prior art, this solenoid valve solution is applied widely, solved the problem that spool travel state and electric signal transmission conversion regime are single, introduce novel state feedback device simultaneously, adopt the actual working state of spool in direct coupled structure reflection electromagnetic valve work process, improve the safety reliability of feedback of status solenoid valve, contribute to strengthen the firm of hydraulic control system.
The technological scheme that the utility model provides: described a kind of solenoid valve with state feedback function comprise left and right electromagnet and in be processed with the valve body of liquid flow channel for oil, described left and right electromagnet forms by electromagnetic coil and electromagnet armature, in valve body, be provided with spool, it is characterized in that: the end face of an electromagnet or be provided with state feedback device at the end face of two electromagnet respectively therein, described state feedback device is connected with the end face of electromagnet by locking nut, and electromagnetic coil is locked; Described spool is the spool of ladder shaft type, its two ends are connected with left and right electromagnet armature respectively, and be installed in valve body with the form of left and right electromagnet armature with integral shaft, and stretch in state feedback device through locking nut with the axle core of state feedback device connecting end electromagnet; Described state feedback device comprises housing and electromagnetic valve plug, the linkage mechanism that is provided with position switch and changes for control position on off state in housing, and electromagnetic valve plug is connected with the wiring cable outside position switch; On axle center in stretching into housing, fixed cover is provided with tapered sleeve, position switch is fixed on the top of linkage mechanism and movable sheath by latch, and one end of linkage mechanism is fixed on position switch, the outer surface of the other end and tapered sleeve touches, and under the movement of tapered sleeve along conical surface lifting, change the state of position switch.
The further technological scheme of the utility model: the axle center end in inserting state feedback device is arranged with button, and the pressing end of button arranges the hull outside of state feedback device.
The further technological scheme of the utility model: be provided with mobile shell outward at position switch, position switch is fixed in mobile shell, mobile shell inserts in the slot of outer casing inner wall by upper and lower two latches, between two latches, be provided with long bolt, it is interior through mobile shell that long bolt inserts shell, and be threaded with mobile shell.
The utility model is technological scheme preferably: described tapered sleeve is the forward conical surface or the reverse conical surface or the two-way conical surface, for the forward conical surface or oppositely its longitudinal cross-section of the conical surface is at right angles trapezoidal, during for the two-way conical surface, its longitudinal cross-section is isosceles trapezoid, and described linkage mechanism is a movable rod, and its one end fixed hinge is on position switch, the other end is provided with roller, when movable sheath moves left and right, the roller of linkage mechanism rises or declines along tapered slope, drives movable rod to press or unclamps control knob.
The utility model is technological scheme preferably: one end of described locking nut is set in the electromagnet armature end face being connected with state feedback device, and volume is located to the electromagnetic coil locking outside electromagnet armature, the other end embeds and is opened in the groove on state feedback device housing, and fixedly tightens by pan head screw.
The utility model is technological scheme preferably: described electromagnetic valve plug is arranged on the top of housing, and is fixedly connected with by clamping bolt.
The utility model is technological scheme preferably: in spool and left and right electromagnet armature joint, be equipped with O RunddichtringO and carry out sealing joint.
The utility model is technological scheme preferably: when the end face of one of them electromagnet is provided with state feedback device, the end face of another electromagnet is depressed into the connecting end surface of valve body and is fitted tightly by the tight lock of coil block.
Described position switch is passive site switch, and three wiring one places are public wiring, and other two places wiring is communicated with public wiring whether clamping switch button This move is realized by position switch underside connecting rod with break function.
Structural design of the present utility model and working principle have tradition machinery and electrical control characteristic concurrently, overall compact, and mounting arrangements is convenient, possesses many kinds of liquid pressure-controlled function, has stronger applicability.Its inner spool and feedback mechanism adopt direct coupled structure simultaneously, reliable in action, antijamming capability is strong, machinery---transform electric position adopts mechanical stroke switch, passive switch signal can be provided, than traditional feedback of status solenoid valve, its structure effectively avoided active position switch signal receive transmission poor compatibility and feedback function for the single drawback of valve type, be applicable to various valve member condition monitoring occasions, especially in large-scale, giant hydropower station speed control system control field and unit on-line monitoring field, show stronger adaptive capacity.
Compare with existing feedback of status solenoid valve, the utlity model has following advantage:
1. the spool of solenoid valve and feedback mechanism adopt direct coupled structure, reliable in action, and antijamming capability is strong;
2. adopt mechanical stroke switch, passive switch signal is provided, have wide range of applications; Be specially adapted to large-scale, giant hydropower station speed control system control field and unit on-line monitoring field;
3. compact structure, arrangement convenience, possesses many kinds of liquid pressure-controlled function, and hydraulic interface meets international standard, and interchangeability is strong.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model one end is provided with state feedback device;
Fig. 2 is the structural representation that the utility model two ends are equipped with state feedback device;
Fig. 3 is internal structure schematic diagram of the present utility model;
Fig. 4 is the structural representation that in the utility model state feedback device, tapered sleeve is two-sided tapered sleeve;
Fig. 5 is that in the utility model state feedback device, tapered sleeve is the structural representation of one side tapered sleeve.
In figure: 1-coil block, 2-left electromagnet, 3-valve body, 4-right electromagnet, 5-state feedback device, 6-left electromagnet armature, 7-left electromagnetic coil, 8-spool, 9-right electromagnetic coil, 10-right electromagnet armature, 11-pan head screw, 12-locking nut, 13-long bolt, 14-latch, 15-electromagnetic valve plug, 16-housing, 17-mobile shell, 18-position switch, 19-sealing cover, 20-button, 21-tapered sleeve, 22-axle center, 23-linkage mechanism, 24-roller, 25-control knob.
Embodiment
Below in conjunction with the drawings and specific embodiments, this feedback of status solenoid valve is described further.Fig. 1, 2, in 3, described a kind of solenoid valve with state feedback function comprises a left side, right electromagnet 2, 4 and in be processed with the valve body 3 of liquid flow channel for oil, a described left side, right electromagnet 2, 4 form by electromagnetic coil and electromagnet armature, in valve body 3, be provided with spool 8, it is characterized in that: the end face of an electromagnet or be provided with state feedback device 5 at the end face of two electromagnet respectively therein, when an electromagnet end face is provided with state feedback device 5 therein, as shown in Figure 1, one end of solenoid valve is depressed into electromagnetic coil locking with the surface of contact of valve body 3 and fits tightly by state feedback device 5, the other end is depressed into valve body 3 surface of contact and is fitted tightly by the coil 1 tight lock of blocking a shot, when when two electromagnet end faces are provided with state feedback device 5, as shown in Figure 2, the two ends of solenoid valve are depressed into electromagnetic coil locking with the surface of contact of valve body 3 and fit tightly by state feedback device 5 respectively, and described state feedback device 5 is connected with the end face of electromagnet by locking nut 12, one end of locking nut 12 is set in the electromagnet armature end face being connected with state feedback device 5, and volume is located to the electromagnetic coil locking outside electromagnet armature, the other end embeds and is opened in the groove on state feedback device housing 16, and fixedly tightens by pan head screw 11.
As shown in Figure 3, described spool 8 is the spool of ladder shaft type, the position that spool 8 moves left and right in valve body limits, can realize according to mobile distance and offer locating slot at valve inner, make spool 8 move to just location, certain position, can not continue mobile, spool 8 two ends respectively with a left side, right electromagnet armature 6, 10 connect, and and left, right electromagnet armature 6, 10 forms with integral shaft are installed in valve body 3, spool 8 can drive whole electromagnet armature to move left and right when receiving that electromagnetic induction moves left and right, on spool and a left side, right electromagnet armature 6, 10 joints are equipped with O RunddichtringO and carry out sealing joint, and stretch in state feedback device 5 through locking nut 12 with the axle core 22 of state feedback device 5 connecting end electromagnet.
As shown in Figure 4, Figure 5, described state feedback device 5 comprises housing 16 and electromagnetic valve plug 15, and electromagnetic valve plug 15 is arranged on the top of housing 16, and is fixedly connected with by clamping bolt, and electromagnetic valve plug 15 is connected with the wiring cable of position switch outer 18, described housing 16 is part with complex appearance, and its inside has the required hole of assembly, groove, the linkage mechanism 23 that is provided with position switch 18 and changes for control position on off state in housing 16, outside position switch 18, be provided with mobile shell 17, position switch 18 is fixed in mobile shell 17, mobile shell 17 is by upper, in the jack that lower two latches, 14 insertion shell 16 inwall correspondences are offered, between two latches 14, be provided with long bolt 13, long bolt 13 inserts in shell 16 through mobile shell 17, and be threaded with mobile shell 17, position switch 18 and mobile shell are fixed on to the top of linkage mechanism 23 and movable sheath 21, and can adjust by long bolt 13 position of mobile shell 17, thereby adjust the conical surface relative position of position switch and tapered sleeve 21, described lid 19 is equipped with O type circle and is installed on housing 16 right openings places, described linkage mechanism 23 is a movable rod, its one end fixed hinge is on position switch 18, the other end is provided with roller 24, on axle center 22 in stretching into housing 16, fixed cover is provided with tapered sleeve 21, described tapered sleeve 21 is the forward conical surface or the reverse conical surface or the two-way conical surface, for the forward conical surface or reverse its longitudinal cross-section of the conical surface at right angles trapezoidal (as shown in Figure 5), during for the two-way conical surface, its longitudinal cross-section is isosceles trapezoid (as shown in Figure 4), when solenoid valve only need to judge two different conditions, just can use the tapered sleeve that only has a conical surface, when solenoid valve need to judge three different conditions, just can use two sides tapered sleeve.The conical surface that linkage mechanism 23 is provided with one end of roller and the outside of tapered sleeve 21 touches, the described tapered sleeve 21 forward conical surfaces, and the roller of position switch 18 underside connecting rod ends is affixed on tapered sleeve 21 conical surfaces and cylinder joint, and roller is in tapered sleeve 21 conical surface left sides; Described tapered sleeve 21 is the reverse conical surface, and the roller of position switch 18 underside connecting rod ends is affixed on tapered sleeve 21 conical surfaces and cylinder joint, and roller is in tapered sleeve 21 conical surface right sides.When tapered sleeve 21 moves left and right, roller rises or declines along tapered slope and horizontal cylinder, drives movable rod to press or unclamps control knob 25, thereby changing the state of position switch 18.
Described position switch 18 is passive site switch, and three wiring one places are public wiring, and other two places wiring is communicated with public wiring whether clamping switch button This move is realized by position switch 18 underside connecting rods with break function.
Feedback of status electromagnetic valve work process described in the utility model following (it is example that the state feedback device of take is arranged on right electromagnet 4 end faces):
When the left electromagnetic coil 7 of feedback of status solenoid valve is switched on, left electromagnet armature 6 is subject to coil magnetic field effect and produces thrust to the right, and then driving moves right with the spool 8 that the inner thin bar of left electromagnet armature 6 is connected, then drive moving right of right electromagnet armature 10 and inner thin bar, pushing set is located in the inner thin bar of right electromagnet armature 10 simultaneously tapered sleeve 21 and button 20 move right, when valve core of the electromagnetic valve 8 moves to right positioner mechanism position, the conversion of solenoid valve function function, the roller of position switch 18 below linkage mechanism 23 ends is along sliding to the cylinder parallel with conical surface least significant end under tapered sleeve 21 conical surfaces, the pressure of the control knob 25 of 23 pairs of position switchs 20 of linkage mechanism is cancelled, now control knob 25 recovers to flick, change the state of position switch 20, external electrical loop state conversion simultaneously that be connected with 20 3 wiring of position switch, and this valve element position change information is transferred out in follow-up analytical system.When the right electromagnetic coil 9 of feedback of status solenoid valve is switched on, right electromagnet armature 10 is subject to coil magnetic field effect and produces thrust left, and then the spool 8 that driving is connected with the inner thin bar of right electromagnet armature 10 is to left movement, drive right electromagnet armature portion's thin bar and be enclosed within the tapered sleeve 21 of right electromagnet armature and button 20 to left movement, when valve core of the electromagnetic valve 8 moves to the positioning means position on the left side, the conversion of solenoid valve function function, the roller of position switch 18 underside connecting rod ends raises to the cylinder concordant with conical surface most significant end along the conical surface, now the control knob 25 of 23 pairs of position switchs 20 of linkage mechanism is given a pressure, the control knob 25 of position switch 18 is pressed, changed the state of position switch 18, the external electrical loop state conversion being connected with three wiring of position switch, this valve element position change information is transferred out in follow-up analytical system.
Interim status feedback solenoid valve is when nominal situation, the functional state of solenoid valve inner spool in right side, if breaking down, system needs the conversion of solenoid valve function, and electromagnetic coil was when lost efficacy, button 20 that now can down state feedback means right side, utilize manual function by button 20, tapered sleeve 21, right electromagnet armature 10, spool 8 and left electromagnet armature 6 promote left, spool 8 is pushed to left positioner mechanism position, now solenoid valve function conversion, realization is by the function of hydraulic closure system, raise to cylinder along the conical surface with the roller of the position switch 18 below connecting rod ends of tapered sleeve 21 laminating, the switch button of position switch 18 is pressed, the conversion of position switch state, by external electrical loop, this communication is gone out.
Claims (8)
1. a solenoid valve with state feedback function, comprise left and right electromagnet (2,4) and in be processed with the valve body (3) of liquid flow channel for oil, described left and right electromagnet (2,4) forms by electromagnetic coil and electromagnet armature, in valve body (3), be provided with spool (8), it is characterized in that: the end face of an electromagnet or be provided with state feedback device (5) at the end face of two electromagnet respectively therein, described state feedback device (5) is connected with the end face of electromagnet by locking nut (12), and electromagnetic coil is locked; Described spool (8) is the spool of ladder shaft type, its two ends are connected with left and right electromagnet armature (6,10) respectively, and be installed in valve body (3) with the form of left and right electromagnet armature (6,10) with integral shaft, and stretch in state feedback device (5) through locking nut (12) with the axle core (22) of state feedback device (5) connecting end electromagnet; Described state feedback device (5) comprises housing (16) and electromagnetic valve plug (15), the linkage mechanism (23) that is provided with position switch (18) and changes for control position on off state in housing (16), electromagnetic valve plug (15) is connected with the wiring cable of position switch outer (18); The upper fixed cover in axle center (22) in stretching into housing (16) is provided with tapered sleeve (21), position switch (18) is fixed on the top of linkage mechanism (23) and movable sheath (21) by latch (14), and one end of linkage mechanism (23) is fixed on position switch (18), the outer surface of the other end and tapered sleeve touches, and under the movement of tapered sleeve (21) along conical surface lifting, change the state of position switch (18).
2. the solenoid valve with state feedback function according to claim 1, it is characterized in that: axle center (22) end in inserting state feedback device (5) is arranged with button (20), and the pressing end of button (20) arranges the hull outside of state feedback device (5).
3. the solenoid valve with state feedback function according to claim 1 and 2, it is characterized in that: outside position switch (18), be provided with mobile shell (17), position switch (18) is fixed in mobile shell (17), mobile shell (17) inserts in the slot of shell (16) inwall by upper and lower two latches (14), between two latches (14), be provided with long bolt (13), it is interior through mobile shell (17) that long bolt (13) inserts shell (16), and be threaded with mobile shell (17).
4. the solenoid valve with state feedback function according to claim 1 and 2, it is characterized in that: described tapered sleeve (21) is the forward conical surface or the reverse conical surface or the two-way conical surface, for the forward conical surface or oppositely its longitudinal cross-section of the conical surface is at right angles trapezoidal, during for the two-way conical surface, its longitudinal cross-section is isosceles trapezoid, described linkage mechanism (23) is a movable rod, its one end fixed hinge is on position switch (18), the other end is provided with roller (24), when movable sheath (21) moves left and right, the roller of linkage mechanism (24) rises or declines along tapered slope, drive movable rod to press or unclamp control knob (25).
5. the solenoid valve with state feedback function according to claim 1 and 2, it is characterized in that: one end of described locking nut (12) is set in the electromagnet armature end face being connected with state feedback device (5), and volume is located to the electromagnetic coil locking outside electromagnet armature, the other end embeds and is opened in the groove on state feedback device housing (16), and fixedly tightens by pan head screw (11).
6. the solenoid valve with state feedback function according to claim 1 and 2, is characterized in that: described electromagnetic valve plug (15) is arranged on the top of housing (16), and is fixedly connected with by clamping bolt.
7. the solenoid valve with state feedback function according to claim 1 and 2, is characterized in that: in spool and left and right electromagnet armature (6,10) joint, be equipped with O RunddichtringO and carry out sealing joint.
8. the solenoid valve with state feedback function according to claim 1 and 2, it is characterized in that: when the end face of one of them electromagnet is provided with state feedback device (5), the end face of another electromagnet is depressed into the connecting end surface of valve body (3) and is fitted tightly by the tight lock of coil block (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320775435.4U CN203548400U (en) | 2013-11-29 | 2013-11-29 | Electromagnetic valve with state feedback function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320775435.4U CN203548400U (en) | 2013-11-29 | 2013-11-29 | Electromagnetic valve with state feedback function |
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| CN203548400U true CN203548400U (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320775435.4U Expired - Lifetime CN203548400U (en) | 2013-11-29 | 2013-11-29 | Electromagnetic valve with state feedback function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109149517A (en) * | 2018-10-31 | 2019-01-04 | 国家电网有限公司 | Electromagnetic valve protector, the system and method for forceful electric power power supply |
| CN111692147A (en) * | 2019-03-14 | 2020-09-22 | 纳博特斯克有限公司 | Driving device, electromagnetic proportional valve, reversing valve and construction machine |
-
2013
- 2013-11-29 CN CN201320775435.4U patent/CN203548400U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109149517A (en) * | 2018-10-31 | 2019-01-04 | 国家电网有限公司 | Electromagnetic valve protector, the system and method for forceful electric power power supply |
| CN111692147A (en) * | 2019-03-14 | 2020-09-22 | 纳博特斯克有限公司 | Driving device, electromagnetic proportional valve, reversing valve and construction machine |
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Granted publication date: 20140416 |
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| CX01 | Expiry of patent term |