CN204628757U - A kind of heavy-load type pneumatic diaphragn actuating mechanism - Google Patents
A kind of heavy-load type pneumatic diaphragn actuating mechanism Download PDFInfo
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- CN204628757U CN204628757U CN201520273526.7U CN201520273526U CN204628757U CN 204628757 U CN204628757 U CN 204628757U CN 201520273526 U CN201520273526 U CN 201520273526U CN 204628757 U CN204628757 U CN 204628757U
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- diaphragm
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Abstract
The utility model patent relates to a kind of heavy-load type pneumatic diaphragn actuating mechanism, mainly comprises support, upper membrane cover, lower membrane cover, diaphragm, pallet, spring, push rod and connection Hough; Described upper membrane cover and lower membrane cover are fixed together by bolt and nut, form hollow membrane room, described film indoor are provided with diaphragm, pallet and spring, described upper membrane cover and diaphragm, pallet form diaphragm chamber, described lower spring end is fixed on lower membrane cover, its upper end is connected to pallet, is provided with some springs between membrane cover and pallet down, forms spring housing; Described pallet is provided with ring shape groove, and described groove is depth staggered designs.A kind of heavy-load type pneumatic diaphragn actuating mechanism reasonable in design of the present utility model, the component of Positive-Negative Action are all general, facilitate storehouse management, increase work efficiency.The depth staggered designs of its tray slots achieves modular operation, and can adjust range of spring action according to the quantity of mounting spring, in industrial processes, stability is strong.
Description
Technical field
The utility model patent relates to a kind of heavy-load type pneumatic diaphragn actuating mechanism, belongs to industrial processes auto-adjustment control valve technology field.
Background technique
Pneumatic diaphragn actuating mechanism is a kind of regulating controller in pneumatic unit combination instrument, in process of production, it is one of important step of automatic regulating system, it accepts output signal that control room sends to open and close valve, reach pressure medium, temperature, flow, the isoparametric automatic adjustment of liquid level, be widely used in oil, chemical industry, metallurgy, electric power, the automatic adjustment of pharmaceuticals industry and telecontrol.The drive unit that dynamic diaphragm actuator is commonly used as modulating valve, for control, controlling opening of valve, the structure of pneumatic diaphragn actuating mechanism is simple, and reliable in action is easy to maintenance, with low cost, is widely used.At present, conventional pneumatic diaphragm control valve, primarily of valve mechanism and actuator's composition, is connected by contiguous block between the two.But, the following shortcoming of pneumatic diaphragn actuating mechanism ubiquity of the prior art: 1. actuator's action mode is single, and Positive-Negative Action actuator lacks versatility; 2. actuator's diaphragm adopts punching press steel part, and surface accuracy is not high, heavier mass; 3. actuator spring seat is put fixing, cannot adjust spring attachment positions, and stroke can not adjust, and lacks flexibility.Therefore, the technological deficiency solving pneumatic diaphragn actuating mechanism of the prior art is current industrial processes auto-adjustment control valve technology field problem demanding prompt solution.
Model utility content
The purpose of this utility model is for above-mentioned technical problem, provides a kind of heavy-load type pneumatic diaphragn actuating mechanism, its reasonable in design, the design of pallet achieves modular operation, use flexibility is strong, and can adjust range of spring action according to the quantity of mounting spring, stability is strong.
A kind of heavy-load type pneumatic diaphragn actuating mechanism, mainly comprises support, upper membrane cover, lower membrane cover, diaphragm, pallet, spring, push rod and connection Hough; Described upper membrane cover and lower membrane cover are fixed together by bolt and nut, form hollow membrane room, are provided with guide bush, are bolted to connection between described lower membrane cover and support; Described film indoor are provided with diaphragm, pallet and spring, and described upper membrane cover and diaphragm, pallet form diaphragm chamber, and described lower spring end is fixed on lower membrane cover, and its upper end is connected to pallet, are provided with some springs between membrane cover and pallet down, form spring housing; Corresponding aperture is equipped with in the middle of described upper membrane cover, lower membrane cover, pallet and support, described push rod is interspersed in the hole of support and lower membrane cover, described pallet upper and lower end is all connected with push rod with upper end cap respectively by nut, described push rod lower end is provided with screw thread, rotate into and connect in screw corresponding in the middle of Hough, fixed installation; Described pallet is provided with ring shape groove, described groove depth staggered designs, spring position can be adjusted, change valve stroke, thus realize modular design, namely spring is installed by means of only simple high-low-position and just can be realized two kinds of different pretightening forces and a stroke, can adjust range of spring according to the quantity of mounting spring.
Sealing fixed block is provided with between described diaphragm and upper membrane cover.
Describedly be located at described guide bush between lower membrane cover and support built with twice "O"-ring, improve the sealing of lower membrane cover and bearing attachment position, with Leakage prevention, bottom employing A type dust ring, seals reliable and stable.Described guide bush adopts aluminum bronze material, little by temperature deformation, and guiding is stable.
Described diaphragm chamber is connected with valve positioner, after signal pressure enters diaphragm chamber by valve positioner, diaphragm produces thrust, Compress Spring, make push rod generation upper and lower displacement, push rod drives corresponding regulating valve rod to make it to be subjected to displacement, thus changes the circulation area between spool and valve seat, until the thrust that the reaction force of spring and signal pressure act on diaphragm balances each other, and then reach the object of automatic adjusting process parameter.
Described pallet material adopts die casting aluminium, and quality is light, and area of contact is large, and uniform force, action stability is strong.Described push rod material is the process of AISI 420 plating nickel on surface, prevents from getting rusty in rugged environment.
Described support is provided with four connecting thread holes, when needing installation side to fill, can realize on-the-spot repacking without dismounting, easy for installation.
Described actuator thrust output is large, and maximum thrust output can reach 26000N; Specification limit: D12, D25, D33, D39, D46, D63, exports reasoning scope 2000N-26000N.
A kind of heavy-load type pneumatic diaphragn actuating mechanism reasonable in design of the present utility model, flexible and convenient operation, the component of the Positive-Negative Action of this actuator are all general, can simplify stock, avoid waste of material, facilitate storehouse management, increase work efficiency.The depth staggered designs of its tray slots achieves modular operation, and use flexibility strong, can adjust range of spring action according to the quantity of mounting spring, in industrial processes, stability is strong.
Accompanying drawing explanation
Fig. 1: a kind of heavy-load type pneumatic diaphragn actuating mechanism positive interaction sectional structure chart;
Fig. 2: a kind of heavy-load type pneumatic diaphragn actuating mechanism reaction sectional structure chart;
Fig. 3: tray structure schematic diagram;
Fig. 4: push rod guide bush structural representation;
Fig. 5: support installing schematic diagram;
In figure: 1, support, 2, upper membrane cover, 3, lower membrane cover, 4, film room, 5, guide bush, 6, diaphragm, 7, pallet, 8, diaphragm chamber, 9, spring, 10, push rod, 11, Hough is connected, 12, groove, 13, "O"-ring, 14, A type dust ring, 15, tapped hole, 16, sealing fixed block, 17, bolt, 18, nut, 19, hole.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Embodiment 1
As shown in Figure 1,3, a kind of heavy-load type pneumatic diaphragn actuating mechanism, mainly comprises support 1, upper membrane cover 2, lower membrane cover 3, diaphragm 6, pallet 7, spring 9, push rod 10 and is connected Hough 11; Described upper membrane cover 2 is fixed together by bolt and nut with lower membrane cover 3, forms hollow membrane room 4, is provided with guide bush 5, is bolted to connection between described lower membrane cover 3 and support 1; Diaphragm 6, pallet 7 and spring 9 is provided with in described film room 4, described upper membrane cover 2 forms diaphragm chamber 8 with diaphragm 6, pallet 7, and lower membrane cover 3 is fixed in described spring 9 lower end, and its upper end is connected to pallet 7, be provided with some springs 9 between lower membrane cover 3 and pallet 7, form spring housing; Corresponding hole 19 is equipped with in the middle of described upper membrane cover 2, lower membrane cover 3, pallet 7 and support 1, described push rod 10 is interspersed in the hole 19 of support 1 and lower membrane cover 3, described pallet 7 upper and lower end is all connected with push rod 1 with upper end cap 2 respectively by nut, described push rod 1 lower end is provided with screw thread, rotate into and connect in screw corresponding in the middle of Hough 11, fixed installation; Described pallet 7 is provided with ring shape groove 12, described groove 12 depth staggered designs, spring 9 position can be adjusted, change valve stroke, thus realize modular design, namely spring is installed by means of only simple high-low-position and just can be realized two kinds of different pretightening forces and a stroke, can adjust range of spring according to the quantity of mounting spring.
As shown in Figure 4, described in be located at described guide bush 5 between lower membrane cover 3 and support 1 built with twice "O"-ring 13, improve the sealing of lower membrane cover 3 and support 1 connection part, with Leakage prevention, bottom adopts A type dust ring 14, seals reliable and stable.Described guide bush adopts aluminum bronze material, little by temperature deformation, and guiding is stable.
As shown in Figure 1, Figure 2 with shown in Fig. 5, described support 1 is provided with four connecting thread holes 15, when needing installation side to fill, can realize on-the-spot repacking without dismounting, easy for installation.
Described diaphragm chamber 8 is connected with valve positioner, after signal pressure enters diaphragm chamber 8 by valve positioner, diaphragm 6 produces thrust, Compress Spring 9, make push rod 10 that upper and lower displacement occur, push rod 10 drives corresponding regulating valve rod to make it to be subjected to displacement, thus changes the circulation area between spool and valve seat, until the thrust that the reaction force of spring and signal pressure act on diaphragm balances each other, and then reach the object of automatic adjusting process parameter.
Embodiment 2
As shown in Figure 2,3, a kind of heavy-load type pneumatic diaphragn actuating mechanism, mainly comprises support 1, upper membrane cover 2, lower membrane cover 3, diaphragm 6, pallet 7, spring 9, push rod 10 and is connected Hough 11; Described upper membrane cover 2 is fixed together by bolt and nut with lower membrane cover 3, forms hollow membrane room 4, is provided with guide bush 5, is bolted to connection between described lower membrane cover 3 and support 1; Diaphragm 6, pallet 7 and spring 9 is provided with in described film room 4, described lower membrane cover 3 forms diaphragm chamber 8 with diaphragm 6, pallet 7, and membrane cover 1 is fixed in described spring 9 upper end, and its lower end is connected to pallet 7, be provided with some springs 9 between upper membrane cover 2 and pallet 7, form spring housing; Corresponding hole 19 is equipped with in the middle of described upper membrane cover 2, lower membrane cover 3, pallet 7 and support 1, described push rod 10 is interspersed in the hole 19 of support 1, lower membrane cover 3 and pallet 7, described pallet 7 upper and lower end is all connected with push rod 10 with lower end cap 3 respectively by nut 18, described push rod 10 lower end is provided with screw thread, rotate into and connect in screw corresponding in the middle of Hough 11, fixed installation; Described pallet 7 is provided with ring shape groove 12, described groove 12 depth staggered designs, spring 9 position can be adjusted, change valve stroke, realize modular design, namely spring is installed by means of only simple high-low-position and just can be realized two kinds of different pretightening forces and a stroke, can adjust range of spring according to the quantity of mounting spring.
Claims (3)
1. a heavy-load type pneumatic diaphragn actuating mechanism, is characterized in that: mainly comprise support, upper membrane cover, lower membrane cover, diaphragm, pallet, spring, push rod and connection Hough; Described upper membrane cover and lower membrane cover are fixed together by bolt and nut, form hollow membrane room, are provided with guide bush, are bolted to connection between described lower membrane cover and support; Described film indoor are provided with diaphragm, pallet and spring, and described upper membrane cover and diaphragm, pallet form diaphragm chamber, and described lower spring end is fixed on lower membrane cover, and its upper end is connected to pallet, are provided with some springs between membrane cover and pallet down, form spring housing; Corresponding aperture is equipped with in the middle of described upper membrane cover, lower membrane cover, pallet and support, described push rod is interspersed in the hole of support and lower membrane cover, described pallet upper and lower end is all connected with push rod with upper end cap respectively by nut, described push rod lower end is provided with screw thread, rotate into and connect in screw corresponding in the middle of Hough, fixed installation; Described pallet is provided with ring shape groove, and described groove is depth staggered designs.
2. pneumatic diaphragn actuating mechanism according to claim 1, is characterized in that: described in be located at described guide bush between lower membrane cover and support built with twice "O"-ring, adopt A type dust ring bottom guide bush.
3. pneumatic diaphragn actuating mechanism according to claim 1, is characterized in that: described support is provided with four connecting thread holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520273526.7U CN204628757U (en) | 2015-04-30 | 2015-04-30 | A kind of heavy-load type pneumatic diaphragn actuating mechanism |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520273526.7U CN204628757U (en) | 2015-04-30 | 2015-04-30 | A kind of heavy-load type pneumatic diaphragn actuating mechanism |
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| CN204628757U true CN204628757U (en) | 2015-09-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896175A (en) * | 2015-04-30 | 2015-09-09 | 山东菲特自控阀门制造有限公司 | Heavy-load pneumatic diaphragm actuating mechanism |
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2015
- 2015-04-30 CN CN201520273526.7U patent/CN204628757U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896175A (en) * | 2015-04-30 | 2015-09-09 | 山东菲特自控阀门制造有限公司 | Heavy-load pneumatic diaphragm actuating mechanism |
| CN104896175B (en) * | 2015-04-30 | 2017-07-28 | 山东菲特自控阀门制造有限公司 | A kind of heavy-load type pneumatic diaphragn actuating mechanism |
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