CN203906961U - Electromagnetic dynamic balance device of valve locater - Google Patents
Electromagnetic dynamic balance device of valve locater Download PDFInfo
- Publication number
- CN203906961U CN203906961U CN201420319191.3U CN201420319191U CN203906961U CN 203906961 U CN203906961 U CN 203906961U CN 201420319191 U CN201420319191 U CN 201420319191U CN 203906961 U CN203906961 U CN 203906961U
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- China
- Prior art keywords
- coil
- yoke
- valve
- magnetic
- permanent
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- Expired - Fee Related
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Abstract
The utility model discloses an electromagnetic dynamic balance device of a valve locator. The electromagnetic dynamic balance device comprises a magnetic yoke, a permanent magnetic ring and a coil, the periphery of the magnetic yoke is connected with the permanent magnetic ring and a magnetism guide piece in a sleeved mode, the upper end of the magnetism guide piece is connected with the lower end of the magnetic yoke, the vertical portion of the coil is installed in a gap between the magnetism guide piece and the magnetic yoke, the horizontal portion of the coil is located under the magnetic yoke, one end of the magnetism guide piece is provided with a convex nozzle, the convex nozzle is connected with a vertically arranged spring piece, and the inner side of the lower end of the spring piece is connected with a force guide block. According to the electromagnetic dynamic balance device of the valve locater, the powered situation or current strength of the coil is changed so that a valve can be adjusted and controlled through the valve locator, adjustment precision is high and the reaction speed is high.
Description
Technical field
The utility model relates to the Equilibrator of valve positioner, is specifically related to a kind of valve positioner electromagnetic power Equilibrator.
Background technique
Valve positioner is the main accessories of modulating valve, common and pneumatic control valve supports the use, and it accepts the output signal of regulator, then with its output signal, removes to control pneumatic control valve, after modulating valve action, the displacement of valve rod feeds back to valve positioner by mechanical device again.
The inside of valve positioner generally all needs to configure Equilibrator, regulates the signal output quantity of pneumatic valve by Equilibrator.Existing valve positioner has multiple dynamical balancing controlling device, such as balance of machinery regulates and electromagnetic balance adjusting.The complex structure of existing Equilibrator, degree of regulation is lower, precise decreasing after use a period of time, and also price is higher, and the cost of manufacturing valve positioner is increased.
In order to solve above-mentioned deficiency of the prior art, the utility model proposes a kind of new solution.
Model utility content
The purpose of this utility model is to provide a kind of valve positioner electromagnetic power Equilibrator.
For reaching above-mentioned purpose, the technological scheme that the utility model adopts is: a kind of valve positioner electromagnetic power Equilibrator is provided, comprises yoke, permanent-magnetic clamp and coil; The cross section of yoke is T-shaped, in the periphery of its vertical portion upper end, is socketed permanent-magnetic clamp, between permanent-magnetic clamp and yoke, has gap; In the periphery of yoke vertical portion lower end, be socketed with and draw magnetic sheet, draw the upper end of magnetic sheet and the lower end of yoke is connected; The vertical portion of coil is arranged in the gap of drawing between magnetic sheet and yoke, and the horizontal component of coil is under yoke;
The one end of drawing magnetic sheet is provided with convex mouth, is connected with the spring sheet of vertical setting on convex mouth, and the inner side, lower end of spring sheet is connected with the power piece of leading, and outside is connected with equilibrium block; The described power of leading piece is arranged on convex mouth below, and the other end is connected with the horizontal component of coil.
In sum, the utlity model has following advantage:
The dynamic balancer that the utility model provides, can realize valve positioner by change coil electricity situation or electric current [strength the adjusting of valve is controlled, and degree of regulation is high, and reaction velocity is fast.
Accompanying drawing explanation
Fig. 1 is the sectional view of the utility model side.
Wherein, 1, spring sheet; 2, equilibrium block; 3, valve; 4, yoke; 5, permanent-magnetic clamp; 6, coil; 7, draw magnetic sheet; 8, lead power piece; 9, convex mouth.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
In an embodiment of the present utility model, as shown in Figure 1, provide a kind of valve positioner electromagnetic power Equilibrator, comprised yoke 4, permanent-magnetic clamp 5 and coil 6; Yoke 4, permanent-magnetic clamp 5 and coil 6 can all be cylindrical.
The cross section of yoke 4 is T-shaped, is socketed permanent-magnetic clamp 5 in the periphery of its vertical portion upper end, between permanent-magnetic clamp 5 and yoke 4, has gap.In the periphery of yoke 4 vertical portion lower ends, be socketed with and draw magnetic sheet 7, the upper end of drawing magnetic sheet 7 is connected with the lower end of yoke 4.The vertical portion of coil 6 is arranged in the gap of drawing between magnetic sheet 7 and yoke 4, and the horizontal component of coil 6 is under yoke 4.Permanent-magnetic clamp 5 can be axial magnetic field, and the N level in magnetic field and S level respectively on two end faces of permanent-magnetic clamp 5, are drawn magnetic sheet 7 and yoke 4 is high permeability material, can guiding magnetic field.The magnet ring overwhelming majority that present stage produces is axial magnetic field, and the magnet ring of producing radial magnetic field can only be that a plurality of fan-shaped magnetic sheets are spliced, and cost is very high.
The one end of drawing magnetic sheet 7 is provided with convex mouth 9, is connected with the spring sheet 1 of vertical setting on convex mouth 9, inner side, the lower end of spring sheet 1 with lead power piece 8 and be connected, outside is connected with equilibrium block 2; Lead power piece 8 and be arranged on convex mouth 9 belows, the other end is connected with the horizontal component of coil 6.
Working principle of the present utility model is as follows: the arrow in Fig. 1 is magnetic induction line, yoke 4 and draw magnetic sheet 7 and can transmit magnetic induction line, and yoke 4 peripheries are provided with permanent-magnetic clamp 5 and draw magnetic sheet 7, and coil 6 is in yoke 4, permanent-magnetic clamp 5 and draw in the closed permanent magnetic field that magnetic sheet 7 forms.After the logical direct current of coil 6, under the effect in magnetic field, coil 6 will deflect.The horizontal component of coil 6 with lead power piece 8 and be connected, during coil 6 deflection, will drive and lead power piece 8 extrusion spring sheets 1, make spring sheet 1 that deformation occur, and then produce displacements upwards with dynamic balance weight 2.In valve positioner, equilibrium block 2 generally can support the use with valve 3, and the gap between equilibrium block 2 and valve 3 can be used and the pressure that regulates startup system.
When equilibrium block 2 is under the effect of spring sheet 1 during near the valve 3 of valve positioner, gap smaller between the two, the air-flow of now valve 3 ejections reduces.In positioning work piece, valve 3 is overflow leakage holes for pneumatic system.When leakage rate reduces, the pressure of whole pneumatic system raises, thereby promotes cylinder.When the electric current of coil 6 changes, will there is corresponding variation in the deflection angle of coil 6, and the deflection angle of the electric current of coil 6 and coil 6 is directly proportional, and hence one can see that, and the cylinder piston-rod displacement of the pneumatic system of the deflection angle of coil 6 and positioning work piece inside is directly proportional.
In implementing process of the present utility model, spring sheet 1 is fixed on convex mouth 9, and convex mouth 9 is in the same vertical plane with the external port of leading power piece 8; After current vanishes in coil 6, spring sheet 1, under fixing elastic force effect, will return to original vertical state, thereby band dynamic balance weight 2 leaves valve 3, and therefore the pressure of pneumatic system reduce, and reveals and increase, and returns to original state.
In an embodiment of the present utility model, yoke 4, permanent-magnetic clamp 5 and coil 6 are arranged on enclosure.
In an embodiment of the present utility model, the thickness of spring sheet 1 is 0.2mm.
In an embodiment of the present utility model, lead power piece 8 for folded plate.
Although by reference to the accompanying drawings embodiment of the present utility model is described in detail, should not be construed as the restriction to the protection domain of this patent.In the described scope of claims, the various modifications that those skilled in the art can make without creative work and distortion still belong to the protection domain of this patent.
Claims (4)
1. a valve positioner electromagnetic power Equilibrator, is characterized in that: comprise yoke, permanent-magnetic clamp and coil; The cross section of described yoke is T-shaped, in the periphery of its vertical portion upper end, is socketed permanent-magnetic clamp, between permanent-magnetic clamp and yoke, has gap; In the periphery of yoke vertical portion lower end, be socketed with and draw magnetic sheet, draw the upper end of magnetic sheet and the lower end of yoke is connected; The vertical portion of described coil is arranged in the gap of drawing between magnetic sheet and yoke, and the horizontal component of coil is under yoke;
Described one end of drawing magnetic sheet is provided with convex mouth, is connected with the spring sheet of vertical setting on convex mouth, and the inner side, lower end of spring sheet is connected with the power piece of leading, and outside is connected with equilibrium block; The described power of leading piece is arranged on convex mouth below, and the other end is connected with the horizontal component of coil.
2. Equilibrator as claimed in claim 1, is characterized in that: described yoke, permanent-magnetic clamp and coil are arranged on enclosure.
3. Equilibrator as claimed in claim 1, is characterized in that: the thickness of described spring sheet is 0.2mm.
4. Equilibrator as claimed in claim 1, is characterized in that: described in to lead power piece be folded plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420319191.3U CN203906961U (en) | 2014-06-16 | 2014-06-16 | Electromagnetic dynamic balance device of valve locater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420319191.3U CN203906961U (en) | 2014-06-16 | 2014-06-16 | Electromagnetic dynamic balance device of valve locater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203906961U true CN203906961U (en) | 2014-10-29 |
Family
ID=51781239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420319191.3U Expired - Fee Related CN203906961U (en) | 2014-06-16 | 2014-06-16 | Electromagnetic dynamic balance device of valve locater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203906961U (en) |
-
2014
- 2014-06-16 CN CN201420319191.3U patent/CN203906961U/en not_active Expired - Fee Related
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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: 20141029 Termination date: 20210616 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |