CN216478950U - Valve core suitable for electromagnetic clutch valve positioner - Google Patents
Valve core suitable for electromagnetic clutch valve positioner Download PDFInfo
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- CN216478950U CN216478950U CN202122966822.3U CN202122966822U CN216478950U CN 216478950 U CN216478950 U CN 216478950U CN 202122966822 U CN202122966822 U CN 202122966822U CN 216478950 U CN216478950 U CN 216478950U
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- valve core
- valve
- electromagnetic clutch
- positioner
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- 125000006850 spacer group Chemical group 0.000 claims abstract description 29
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- 238000007789 sealing Methods 0.000 claims description 26
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- 229920001971 elastomer Polymers 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000741 silica gel Substances 0.000 claims description 2
- 229910002027 silica gel Inorganic materials 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 12
- 239000002184 metal Substances 0.000 abstract description 3
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- 230000007774 longterm Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- 238000007906 compression Methods 0.000 description 1
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- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
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Abstract
The utility model discloses a valve core suitable for an electromagnetic clutch valve positioner, wherein the valve core and an electromagnetic clutch mechanism are respectively arranged in a positioner shell; the valve core comprises a valve core shaft body and a valve core end part which are integrally connected, the valve core end part is electromagnetically coupled with the electromagnetic clutch mechanism, and a flexible vibration damping spacer bush is integrally coated on the periphery of the valve core end part; the flexible vibration reduction spacer sleeve can effectively prevent the surface of the metal valve core from colliding with the surface of the electromagnetic clutch mechanism, eliminate vibration generated by the valve core, greatly reduce noise generated by the valve core in the suction process, effectively protect the valve core and finally effectively prolong the service life of the electromagnetic clutch valve positioner applied by the flexible vibration reduction spacer sleeve.
Description
Technical Field
The utility model belongs to the technical field of valve positioners, and particularly relates to a valve core suitable for an electromagnetic clutch valve positioner.
Background
The positioner is an important part of various pneumatic control valves and is used for adjusting a pneumatic control system with high quality requirements so as to improve the positioning accuracy and reliability of the pneumatic control valves, generally, the positioner realizes the opening or closing function through the movement of a valve core, the movement of the valve core is controlled in a mode of mechanical link pushing or pneumatic pressure pushing, and because certain time is consumed in the action reaction process of the mechanical link pushing or the pneumatic pressure change process of the pneumatic pressure pushing, the real-time response cannot be realized and the opening or closing function of the positioner can not be achieved, after the control signal instruction of the pneumatic control system is output, the actual action feedback of the valve core of the positioner lags, the function required by the pressure signal feedback in the pneumatic control system cannot be realized in time, and the positioner cannot meet the application environment of rapid and accurate positioning.
Accordingly, the present application seeks to solve the above-mentioned problems by providing an inventive design for a quick-response electric valve positioner apparatus.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a valve core suitable for an electromagnetic clutch valve positioner, wherein a flexible damping spacer can effectively prevent the surface of a valve core made of a metal material from colliding with the surface of an electromagnetic clutch mechanism, eliminate the vibration generated by the valve core, and greatly reduce the noise generated by the valve core during the actuation process, and the flexible damping spacer can also effectively protect the valve core, thereby effectively prolonging the service life of the electromagnetic clutch valve positioner.
The technical scheme adopted by the utility model is as follows:
a valve core suitable for an electromagnetic clutch valve positioner is characterized in that the valve core and an electromagnetic clutch mechanism are respectively arranged in a positioner shell; the valve core comprises a valve core shaft body and a valve core end part which are integrally connected, the valve core end part is electromagnetically coupled with the electromagnetic clutch mechanism, and a flexible vibration damping spacer bush is integrally coated on the periphery of the valve core end part.
Preferably, the end of the valve core comprises a connecting boss located above and a limiting boss located below, an electromagnetic attraction end face is arranged between the connecting boss and the limiting boss, and the flexible vibration reduction spacer sleeve is integrally coated on the periphery of the electromagnetic attraction end face.
Preferably, the upper surface and the lower surface of the flexible vibration damping spacer sleeve are respectively provided with an upper noise reduction lip ring and a lower noise reduction lip ring.
Preferably, the upper noise reduction lip ring is located on the periphery of the connecting boss, and the lower noise reduction lip ring is located on the periphery of the limiting boss.
Preferably, the connecting boss is integrally provided with a sealing structure for realizing a sealing matching effect when contacting with the inner wall of the locator shell.
Preferably, the integrated sealing structure comprises a sealing ring positioned on the periphery of the valve core shaft body and a sealing sleeve sleeved on the periphery of the connecting boss, and the sealing ring and the sealing sleeve are integrally connected.
Preferably, a return spring is sleeved on the limiting boss.
Preferably, the valve core shaft body is provided with a groove for increasing the communication space of the air outlet.
Preferably, the flexible vibration-damping spacer bush is made of silica gel or rubber.
Because the electromagnetic clutch valve positioner generates magnetic field force when being electrified, the electromagnetic clutch mechanism is quickly magnetized, the valve core is quickly attracted by the electromagnetic clutch mechanism under the action of magnetic field force, at the moment, the electromagnetic clutch valve positioner is opened, the magnetic field force disappears when the electromagnetic clutch mechanism is powered off, the magnetic field force attracting the valve core disappears immediately, the valve core is separated from the electromagnetic clutch mechanism under the action of external force for resetting, the electromagnetic clutch valve positioner is closed, because the attraction force of the electromagnetic clutch mechanism is exponentially increased along with the reduction of the distance between the valve core and the electromagnetic clutch mechanism, the valve core can generate larger instantaneous acceleration in the attraction process of the valve core, the valve core and the electromagnetic clutch mechanism can generate larger impact load, so that the valve core generates instantaneous vibration, the risk of surface damage of the valve core is increased, and the closing effect of the electromagnetic clutch valve positioner is gradually reduced in the long-term use process, the service life of the electromagnetic clutch valve positioner is obviously reduced until the whole electromagnetic clutch valve positioner is closed and fails; meanwhile, as the valve core and the electromagnetic clutch mechanism are made of metal materials needing magnetic conduction, the noise is high in the suction process of the valve core and the electromagnetic clutch mechanism, and the valve core and the electromagnetic clutch mechanism are not beneficial to being used under the working condition with high requirement on environmental noise; therefore, the flexible vibration reduction spacer sleeve is integrally coated on the periphery of the end part of the valve core, the structural design of the flexible vibration reduction spacer sleeve can effectively eliminate vibration and noise generated when the valve core is attracted to the electromagnetic coil unit by magnetic field force generated by the electromagnetic clutch mechanism, a noise reduction lip ring of the flexible vibration reduction spacer sleeve firstly contacts the electromagnetic clutch mechanism and is gradually and elastically deformed until the valve core is completely attracted to the electromagnetic clutch mechanism, the flexible vibration reduction spacer sleeve can effectively prevent the surface of the valve core made of metal materials from colliding with the surface of the electromagnetic clutch mechanism, eliminate vibration generated by the valve core, greatly reduce noise generated in the attraction process of the valve core, effectively protect the valve core and finally effectively prolong the service life of the electromagnetic clutch valve positioner.
Drawings
FIG. 1 is a schematic diagram of an electro-pneumatic valve positioner assembly according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is an exploded view of FIG. 1;
FIG. 4 is a cross-sectional view of a lower cartridge in accordance with an embodiment of the present invention;
FIG. 5 is a top view of FIG. 4;
fig. 6 is a schematic view of the structures of fig. 4 in an exploded state.
Detailed Description
The embodiment of the utility model discloses a valve core suitable for an electromagnetic clutch valve positioner, wherein the valve core and an electromagnetic clutch mechanism are respectively arranged in a positioner shell; the valve core comprises a valve core shaft body and a valve core end part which are integrally connected, the valve core end part is electromagnetically coupled with the electromagnetic clutch mechanism, and a flexible vibration damping spacer bush is integrally coated on the periphery of the valve core end part.
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1: referring to fig. 1, 2 and 3, respectively, an electric valve positioner device 1 capable of responding quickly includes an upper positioner housing 10 and a lower positioner housing 20, which are integrally mounted and connected, and the upper positioner housing 10 is provided with an air inlet 41 and an air outlet 42, which are controlled to be conducted or cut off by a valve core 30 (made of magnetic conductive metal material); the valve core 30 is installed in a limited manner on the inner periphery of the upper positioner housing 10 and between the air inlet 41 and the air outlet 42, and the electromagnetic clutch mechanism 50 is disposed on the outer periphery of the upper positioner housing 10, so that the valve core 30 moves up and down in the upper positioner housing 10 under the selective energization of the electromagnetic clutch mechanism 50.
Preferably, in order to facilitate the communication effect, in the present embodiment, the interior of the lower retainer housing 20 is provided with a valve chamber 21 communicating with the air inlet 41; the electromagnetic clutch mechanism 50 comprises an electromagnetic clutch shell 51 (made of magnetic conductive metal) communicated with the valve cavity 21, the electromagnetic clutch shell 51 is positioned on the periphery of the valve core end 31, an electromagnetic coil unit 52 which is selectively and electromagnetically attracted with the valve core end 31 is arranged in the electromagnetic clutch shell 51, and the air outlet 42 is selectively communicated with the valve cavity 21 by the up-and-down movement of the valve core 30 in the upper locator shell 10; specifically, in the present embodiment, the electromagnetic clutch housing 51 is provided with a plurality of communication air holes 51 a.
Preferably, in order to ensure the reset effect of the valve core 30 after power failure, in the present embodiment, a limit sleeve 51b is provided inside the electromagnetic clutch housing 51, the electromagnetic coil unit 52 is located at the periphery of the limit sleeve 51b, and the valve core end 31 is limit-mounted between the upper positioner housing 10 and the electromagnetic clutch housing 51 in a manner of being movable in the up-down direction, and particularly preferably, in the present embodiment, the up-down movement stroke range of the valve core 30 in the upper positioner housing 10 is 2-6 mm; the lower end of the valve core end part 31 is provided with a limit boss 31a, a return spring 53 is arranged between the limit boss 31a and the electromagnetic clutch shell 51, and the return spring 53 is positioned in a limit shaft sleeve 51 b.
Preferably, in order to facilitate the installation effect, in the present embodiment, the electromagnetic coil unit 52 includes a wire frame 52a sleeved on the outer periphery of the limit sleeve 51b, and an electromagnetic coil 52b selectively electrically connected with an external power supply (not shown) through a cable (not shown) is wound on the wire frame 52 a; further preferably, in the present embodiment, the lower positioner housing 20 is provided with an energization socket 60 that is electrically connected to an external power source, and the energization socket 60 and the electromagnetic coil 52b are selectively electrically connected by a cable; specifically, the outer end of the current-carrying socket 60 is provided with a groove 61 for inserting and matching with an external power supply, and the inner end thereof is provided with an electric contact piece 62 selectively connected with the electromagnetic coil 52b in a current-carrying manner through a cable; to facilitate cable connection, in the present embodiment, a through-hole (not shown) for drawing out a cable is provided at the bottom of the electromagnetic clutch housing 51.
Preferably, in order to ensure the sealing effect of the valve cavity 21 with the outside, in the present embodiment, a sealing ring 70 is provided at the mounting fitting between the upper locator housing 10 and the lower locator housing 20, and the sealing ring 70 is located at the outer periphery of the valve cavity 21.
In the embodiment, when the electric valve positioner device works specifically, the electromagnetic clutch mechanism 50 is powered on or off, and when the electric valve positioner device is powered on, the electromagnetic coil 52b of the electromagnetic clutch mechanism 50 generates a magnetic force field, an electromagnetic attraction effect is generated between the magnetic force field and the valve core 30, so that the valve core 30 is attracted, the valve core 30 moves downwards to be in contact with the electromagnetic clutch mechanism 50, and the air outlet 42 is communicated with the valve cavity 21 (which is equivalent to the situation that the electric valve positioner device 1 is in an open state); on the contrary, when the power is cut off, the magnetic force field disappears, and the valve core 30 is separated from the electromagnetic coil 52b and is reset to be in sealing fit with the upper positioner shell 10, so that the air outlet 42 is not communicated with the valve cavity 21 (which is equivalent to the electric valve positioner device 1 is in a closed state); because the generation and disappearance of the electromagnetic field are instantly changed by switching between the power-on and the power-off according to the electromagnetic clutch mechanism 50, the valve element 30 can be quickly driven, so that a quick and sensitive response effect is realized, the action execution time of the valve element 30 is obviously shortened, and finally, the accurate positioning effect of the electric valve positioner device 1 is effectively improved.
The applicant also finds that the main working processes of the present application are: when the electromagnetic coil 52b is electrified, magnetic field force is generated, the electromagnetic clutch shell 51 is quickly magnetized, the valve core 30 is quickly attracted by the electromagnetic clutch shell 51 under the action of the magnetic field force, at the moment, the electric valve positioner device 1 is opened, when the electromagnetic coil 52b is powered off, the magnetic field force attracting the valve core 30 disappears immediately, the valve core 30 is separated from the electromagnetic clutch shell 51 under the action of external force of the compression spring 53, the electric valve positioner device 1 is closed, because the attraction force of the electromagnetic coil 52b is exponentially increased along with the reduction of the distance between the valve core 30 and the electromagnetic coil unit 52, the valve core 30 generates larger instantaneous acceleration in the attraction process of the valve core 30, the valve core 30 and the electromagnetic coil unit 52 generate larger impact load, the valve core 30 generates instantaneous vibration, the risk of surface damage of the valve core 30 is increased, in the long-term use process, the closing effect of the electric valve positioner device 1 is gradually reduced until the whole electric valve positioner device 1 is closed and failed, so that the service life of the electric valve positioner device 1 is obviously reduced; meanwhile, because the valve core 30 and the electromagnetic clutch shell 51 are made of metal materials which need to be magnetically conductive, the noise is high in the attracting process of the valve core 30 and the electromagnetic coil unit 52, and the electromagnetic clutch is not beneficial to being used under the working condition with high requirement on environmental noise; to solve this problem, the applicant of the present invention refers to the following embodiment 2 by proposing a preferred valve body structure.
Example 2: the remaining technical solutions of this embodiment 2 are the same as those of embodiment 1, except that, on the basis of embodiment 1, please further refer to fig. 4, fig. 5 and fig. 6, this embodiment 2 further proposes a valve core 30 suitable for an electromagnetic clutch valve positioner (the electrical valve positioner device 1 described in embodiment 1 can be directly adopted), which includes a valve core shaft 32 and a valve core end 31 that are integrally connected, where the valve core end 31 is electromagnetically coupled with an electromagnetic coil unit 52, and a flexible damping spacer 33 is integrally coated on the outer periphery of the valve core end 31; particularly preferably, in the present embodiment, the flexible damping spacer 33 is made of a silicone rubber or a rubber material, and a person skilled in the art can select a suitable material for the flexible damping spacer 33 according to actual needs.
Preferably, in the present embodiment, the valve body end portion 31 includes a connection boss 31a located above and a limit boss 31c located below, an electromagnetic attraction end surface 31b is provided between the connection boss 31a and the limit boss 31c, and the flexible damping spacer 33 integrally covers the periphery of the electromagnetic attraction end surface 31 b.
Preferably, in order to ensure the flexible attachment effect of the flexible vibration damping spacer 33 in the vertical direction, in the present embodiment, the upper and lower surfaces of the flexible vibration damping spacer 33 are provided with an upper noise reduction lip ring 33a and a lower noise reduction lip ring 33b, respectively; preferably, in the present embodiment, the upper noise reduction lip ring 33a is located on the outer periphery of the coupling boss 31a, and the lower noise reduction lip ring 33b is located on the outer periphery of the stopper boss 31 c.
Preferably, in the present embodiment, the connecting boss 31a is integrally provided with a sealing structure 34 for achieving a sealing engagement effect when contacting with the inner wall of the upper positioner housing 10, ensuring a sealing engagement effect between the air outlet 42 and the valve cavity 21 when the electromagnetic coil 52b is deenergized, and further ensuring the closing reliability of the electric valve positioner device 1 of the present embodiment; specifically, in the present embodiment, the integrated sealing structure 34 includes a sealing ring 34a located on the outer periphery of the valve core shaft body 32 and a sealing sleeve 34b sleeved on the outer periphery of the connecting boss 31a, and the sealing ring 34a and the sealing sleeve 34b are integrally connected.
Preferably, in the present embodiment, the spool shaft body 32 is provided with a groove 32a for increasing the communication space of the air outlet 42, ensuring the communication effect between the air outlet 42 and the valve chamber 21 when the electromagnetic coil 52b is energized.
In the embodiment 2, the outer periphery of the end part 31 of the valve core is integrally wrapped with the flexible damping spacer 33, and the structural design of the flexible damping spacer 33 can effectively eliminate the vibration and noise generated when the valve core 30 is attracted, during the suction of the spool 30 to the solenoid unit 52 by the magnetic force generated from the solenoid 52b, the falling noise lip ring 33b of the flexible damping spacer 33 first contacts the solenoid coil unit 52, and gradually elastically deforms until the valve core 30 and the electromagnetic coil unit 52 are completely attracted, the flexible vibration reduction spacer 33 can effectively prevent the surface of the metal valve core 30 from colliding with the surface of the electromagnetic coil unit 52, eliminate the vibration generated by the valve core 30, and greatly reduce the noise that the valve core 30 produced in the actuation process, flexible damping spacer 33 can also protect the valve core 30 effectively, has finally effectively improved the life of this embodiment's electric valve locator device 1.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art.
Claims (9)
1. A valve core suitable for an electromagnetic clutch valve positioner is characterized in that the valve core and an electromagnetic clutch mechanism are respectively arranged in a positioner shell; the valve core comprises a valve core shaft body and a valve core end part which are integrally connected, the valve core end part is electromagnetically coupled with the electromagnetic clutch mechanism, and a flexible vibration damping spacer bush is integrally coated on the periphery of the valve core end part.
2. The valve core suitable for the electromagnetic clutch valve positioner as claimed in claim 1, wherein the end of the valve core comprises a connecting boss located above and a limiting boss located below, an electromagnetic attraction end face is arranged between the connecting boss and the limiting boss, and the flexible damping spacer is integrally coated on the periphery of the electromagnetic attraction end face.
3. The valve cartridge adapted for use in a solenoid actuated clutch valve positioner of claim 2, wherein the upper and lower surfaces of the flexible damping spacer are provided with an upper noise reduction lip ring and a lower noise reduction lip ring, respectively.
4. The valve core suitable for the electromagnetic clutch valve positioner according to claim 3, wherein the upper noise reduction lip ring is positioned on the periphery of the connecting boss, and the lower noise reduction lip ring is positioned on the periphery of the limiting boss.
5. The valve core suitable for the electromagnetic clutch valve positioner as claimed in claim 2, wherein the connecting boss is integrally provided with a sealing structure for realizing a sealing fit effect when contacting with the inner wall of the positioner housing.
6. The valve element applicable to the electromagnetic clutch valve positioner as claimed in claim 5, wherein the sealing structure comprises a sealing ring located on the periphery of the valve element shaft body and a sealing sleeve sleeved on the periphery of the connecting boss, and the sealing ring and the sealing sleeve are integrally connected.
7. The valve core suitable for the electromagnetic clutch valve positioner as claimed in claim 2, wherein a return spring is sleeved on the limit boss.
8. The valve core suitable for the electromagnetic clutch valve positioner as claimed in claim 1, wherein the valve core shaft body is provided with a groove for increasing the communication space of the air outlet.
9. The valve core suitable for the electromagnetic clutch valve positioner as claimed in claim 1, wherein the flexible damping spacer is made of silica gel or rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122966822.3U CN216478950U (en) | 2021-11-29 | 2021-11-29 | Valve core suitable for electromagnetic clutch valve positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122966822.3U CN216478950U (en) | 2021-11-29 | 2021-11-29 | Valve core suitable for electromagnetic clutch valve positioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216478950U true CN216478950U (en) | 2022-05-10 |
Family
ID=81401535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122966822.3U Expired - Fee Related CN216478950U (en) | 2021-11-29 | 2021-11-29 | Valve core suitable for electromagnetic clutch valve positioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216478950U (en) |
-
2021
- 2021-11-29 CN CN202122966822.3U patent/CN216478950U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220510 |
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| CF01 | Termination of patent right due to non-payment of annual fee |