CN2346044Y - Automatic controlled electric-pnematic converter - Google Patents
Automatic controlled electric-pnematic converter Download PDFInfo
- Publication number
- CN2346044Y CN2346044Y CN 98213380 CN98213380U CN2346044Y CN 2346044 Y CN2346044 Y CN 2346044Y CN 98213380 CN98213380 CN 98213380 CN 98213380 U CN98213380 U CN 98213380U CN 2346044 Y CN2346044 Y CN 2346044Y
- Authority
- CN
- China
- Prior art keywords
- armature
- baffle plate
- gap
- air pressure
- nozzle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model relates to an automatic controlled electric-pneumatic converter which belongs to the equipment for controlling and regulating electric signals and converting the electric signals into air pressure signals. An electrical signal output control part is composed of soft magnetic ring bodies 3, a magnetic core and an armature, and a gap (namely an air gap) is formed between two soft magnetic ring bodies to form a closed magnetic loop circuit. The lower end of the armature is provided with a baffle plate which just corresponds to a nozzle of an air pressure control part. The electrical signal control part sends out 4 to 20 ma electrical signals through the control of the gap between the regulating baffle plate and the nozzle to export 0.02 to 0.1 mpa air pressure, and then an actuating mechanism is pushed to work. The utility model has the advantages of simple structure, raw material saving, good reliability and convenient operation.
Description
The utility model relate to the signal of telecommunication control, regulate, convert to the device of air pressure signal, a kind of automatic control electric pneumatic converter.
At present, in the prior art, for automatic control system, generally speaking, be the air pressure signal that the electrical signal conversion of the 4-20ma of computer or electric controller output is become 0.02-0.1mpa, promote control executing mechanism by air pressure signal again, drive pneumatic means running work.Its version that adopts is roughly: moving-coil type signal of telecommunication output control structure, but its waterproof, humidity resistance are poor, more fragile; Another kind is an armature formula structure, adopts two big П type permanent magnets, and its structure is complicated, and volume is big, the cost height.To the seventies, its version is not seen variation substantially.
The purpose of this utility model provides a kind of automatic control electric pneumatic converter, and it is simpler to make it structure, and volume is little, economical with materials, good reliability.
For achieving the above object, the utility model adopts following technical scheme:
Described automatic control electric pneumatic converter is made up of signal of telecommunication input control section and air pressure output control part, its signal of telecommunication input control section, by soft magnetic bodies magnetic core 1, soft magnetism ring body 3, the magnetic pole gap of soft magnetism ring body 3 (air gap) constitutes the magnet loop of a closure, and it is fixed on the support; Armature 6 upper ends place in the middle of the N utmost point and S utmost point air gap of soft magnetism ring body 3, and its both sides respectively are pasted with two permanent magnet sheets 4, and permanent magnet sheet 4 outsides are the S utmost point, and armature is the N utmost point, and armature 6 is fixedly connected on the angle type shell fragment 5, and angle type shell fragment 5 is fixed on the support; The other end device of armature has connecting rod 22, zeroing spring 7 is housed on the connecting rod, and zeroing spring 7 is fixed on the support the following end device baffle plate 9 of connecting rod 22, baffle plate 9 just in time corresponds to the gas nozzle 10 of air pressure control section, and baffle plate 9 and nozzle 10 have a suitable gap.
Owing to adopted technique scheme, the utlity model has following superiority:
Described automatic control electric pneumatic converter changes former two П type permanent magnets into two small pieces permanent magnetism sheets, saves material more than 20 times; Because version changes, and has cut reponse system, has saved the components and parts of reponse system; Its overall structure is simple, and volume is little, good reliability, and maintenance capacity is little, handled easily.
Below in conjunction with the description of drawings specific embodiment of the utility model:
Fig. 1 controls electric pneumatic converter overall structure schematic diagram automatically.
Shown in the figure Shen: 1-magnet magnetic core; The 2-coil; 3-soft magnetism ring body; 4-permanent magnetism sheet; 5-angle type shell fragment; 6-armature; The 7-spring that returns to zero; The 8-back pressure chamber; The 9-baffle plate; The 10-nozzle; The hard core of 11-diaphragm; The 12-diaphragm; The 13-steam vent; The 14-vent valve; 15-source of the gas input port; The 16-spring; The 17-ball valve; 18-source of the gas valve seat; The 19-delivery valve seat; The 20-delivery outlet; The 21-constant throttling orifice; The 22-connecting rod.
Embodiment:
The signal of telecommunication of described automatic control electric pneumatic converter input control section, when the 4-20ma electric current fed magnet exciting coil, the soft magnetism ring body polarity that is magnetized was as figure.Be bonded at the magnetic field interaction of the permanent magnetism sheet of armature both sides in it and the air gap, overcome the thrust that angle type shell fragment and baffle plate are subjected to nozzle air current, making armature is that fulcrum turns left with angle type shell fragment.Because armature turns left, drive baffle plate near nozzle, make the airflow obstruction of nozzle ejection, back pressure increases, and the suffered thrust of baffle plate is also along with increase for this reason.When the thrust that is subjected to when baffle plate equated with the power that magnetic circuit system is produced, system reached balance, stable air pressure of power amplifier output.Otherwise if electric current reduces, armature turns right, and baffle plate leaves nozzle, and the nozzle back pressure reduces, and the output of pneumatic power amplifier also reduces.
The course of work of pneumatic amplifier is: when baffle plate during near nozzle 10, the airflow obstruction that flows through through constant throttling orifice 21 increases the pressure of back pressure chamber 8, promotes diaphragm unit 11,12,19 and moves down, and ball valve 17 apertures are increased, and output pressure increases.When baffle plate 9 during away from nozzle 10, the pressure of back pressure chamber 8 reduces, exhaust outlet 19 is opened simultaneously, discharge a part of pressure, output pressure is reduced, when diaphragm unit when the suffered power in both sides equates about in the of 11,12,19, diaphragm group body reaches new balance, the value corresponding with electric current after one of amplifier output reduces.
Claims (1)
1, a kind of automatic control electric pneumatic converter, it is characterized in that: described automatic control electric pneumatic converter, form by signal of telecommunication input control section and air pressure output control part, its signal of telecommunication input control section, by soft magnetic bodies magnetic core (1), soft magnetism ring body (3), the magnetic pole gap of soft magnetism ring body (3) are the magnet loop that air gap constitutes a closure, and it is fixed on the support; Armature (6) upper end places in the middle of the N utmost point and S utmost point air gap of soft magnetism ring body (3), its both sides respectively are pasted with two permanent magnet sheets (4), and permanent magnet sheet (4) outside is the S utmost point, and armature is the N utmost point, armature (6) is fixedly connected on the angle type shell fragment (5), and angle type shell fragment (5) is fixed on the support; The other end device of armature has connecting rod (22), zeroing spring (7) is housed on the connecting rod, zeroing spring (7) is fixed on the support, the following end device baffle plate (9) of connecting rod (22), baffle plate (9) just in time corresponds to the gas nozzle (10) of air pressure control section, and baffle plate (9) and nozzle (10) have a suitable gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98213380 CN2346044Y (en) | 1998-05-09 | 1998-05-09 | Automatic controlled electric-pnematic converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98213380 CN2346044Y (en) | 1998-05-09 | 1998-05-09 | Automatic controlled electric-pnematic converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2346044Y true CN2346044Y (en) | 1999-10-27 |
Family
ID=33967354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98213380 Expired - Fee Related CN2346044Y (en) | 1998-05-09 | 1998-05-09 | Automatic controlled electric-pnematic converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2346044Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907490A (en) * | 2015-12-22 | 2017-06-30 | 北京谊安医疗系统股份有限公司 | A kind of proportioning valve valve port for controlling flow |
| CN109469762A (en) * | 2018-12-10 | 2019-03-15 | 辰星仪表（成都）有限公司 | A kind of electropneumatic transducer |
-
1998
- 1998-05-09 CN CN 98213380 patent/CN2346044Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907490A (en) * | 2015-12-22 | 2017-06-30 | 北京谊安医疗系统股份有限公司 | A kind of proportioning valve valve port for controlling flow |
| CN106907490B (en) * | 2015-12-22 | 2018-11-13 | 北京谊安医疗系统股份有限公司 | A kind of proportioning valve valve port for controlling flow |
| CN109469762A (en) * | 2018-12-10 | 2019-03-15 | 辰星仪表（成都）有限公司 | A kind of electropneumatic transducer |
| WO2020119827A1 (en) * | 2018-12-10 | 2020-06-18 | 辰星仪表（成都）有限公司 | Electrical/pneumatic converter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100570185C (en) | The continuously adjustable solenoid valve of valve core movement | |
| CN102155570B (en) | Pneumatic high-speed switch valve driven by giant magnetostriction | |
| CN108320930A (en) | Convert power switch | |
| CN2346044Y (en) | Automatic controlled electric-pnematic converter | |
| CN2893904Y (en) | Energy-saving relay drive circuit device | |
| CN106783258A (en) | Switching device and the high-speed switch using the device | |
| CN2485779Y (en) | Magnetic contactor | |
| CN204141008U (en) | The solenoid valve that a kind of fluid controls | |
| CN100545473C (en) | Can reduce the axial active magnetic suspension bearing of current ripples | |
| CN201173329Y (en) | Valve core movement continuous adjustable electromagnetic valve | |
| CN209146387U (en) | A kind of low-power consumption self-holding electromagnetic valve | |
| CN210118511U (en) | Single coil driven solenoid valve | |
| CN201284836Y (en) | Flux-adjustable solenoid valve | |
| CN204664520U (en) | A kind of safety valve | |
| CN101651005B (en) | Electromagnet and switch valve using same | |
| CN201588996U (en) | Gas proportion valve | |
| CN206564691U (en) | A kind of digital loudspeaker | |
| CN203594856U (en) | Inversely-driven permanent magnet gas proportional valve | |
| CN2830807Y (en) | Permanent-magnet air valve | |
| CN202483709U (en) | Positive pressure deflation valve | |
| CN2384073Y (en) | Automatic regulating electromagnetic valve | |
| CN206246790U (en) | A kind of switch valve | |
| CN216351893U (en) | Intelligent integrated adjusting system of electric actuating mechanism | |
| CN217713823U (en) | DCS control device for 220V electric valve | |
| CN204614738U (en) | A kind of high-efficiency electromagnetic relay |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |