CN214466458U - Pneumatic actuator capable of running stably - Google Patents
Pneumatic actuator capable of running stably Download PDFInfo
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- CN214466458U CN214466458U CN202120250606.6U CN202120250606U CN214466458U CN 214466458 U CN214466458 U CN 214466458U CN 202120250606 U CN202120250606 U CN 202120250606U CN 214466458 U CN214466458 U CN 214466458U
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- air chamber
- valve rod
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- lower beam
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Abstract
The utility model relates to a pneumatic actuator of even running, including the valve rod, the rotating member, the upper boom, lower beam and member actuating mechanism, the valve rod upper end is fixed in the rotating member, upper boom and lower beam parallel arrangement, the rotating member sets up between upper boom and lower beam and valve rod perpendicular to upper boom and lower beam, the both ends of rotating member are provided with the sliding tray respectively, the upper boom is provided with the last removal piece and the removal piece down that remove in the sliding tray with the lower beam is fixed, member actuating mechanism drives upper boom and lower beam parallel movement respectively, the upper boom constitutes the rotation of valve rod with the parallel movement of lower beam. The utility model provides a pneumatic actuator of even running.
Description
Technical Field
The utility model relates to a pneumatic actuator, concretely relates to pneumatic actuator of even running.
Background
The pneumatic actuator is an actuating device for opening and closing or adjusting a valve by air pressure, is also called a pneumatic actuating mechanism or a pneumatic device, is generally called a pneumatic head, and is divided into a film type and a piston type, wherein the piston type is suitable for occasions with larger output force, such as large-caliber and high-pressure-drop control or a pushing device of a butterfly valve.
The piston type pneumatic actuator is used in a place with a larger load ratio, and the load affects the piston type pneumatic actuator, so that the normal rotation of the piston type pneumatic actuator is blocked, and the precision of the piston type pneumatic actuator is also affected.
SUMMERY OF THE UTILITY MODEL
To the not enough of prior art existence, the utility model aims to provide a pneumatic actuator of even running.
In order to achieve the above purpose, the utility model provides a following technical scheme: including the valve rod, the rotating member, the upper boom, lower beam and member actuating mechanism, the rotating member is fixed in to the valve rod upper end, upper boom and lower beam parallel arrangement, the rotating member sets up between upper boom and lower beam and valve rod perpendicular to upper boom and lower beam, the both ends of rotating member are provided with the sliding tray respectively, upper boom and lower beam are fixed to be provided with and move up the movable block and move down the movable block that move in the sliding tray, member actuating mechanism drives upper boom and lower beam parallel movement respectively, the parallel movement of upper boom and lower beam constitutes the rotation of valve rod.
Through adopting above-mentioned technical scheme, when the needs valve rod rotates, move to both sides by member actuating mechanism drive upper boom and lower beam, it changes with the position of lower moving block in the sliding tray to go up the moving block this moment, and then it takes place rotatoryly to drive the rotating member, and the upper end of valve rod is fixed in the rotating member, so the valve rod can follow the rotating member and rotate, through the upper boom with the drive effect of lower beam simultaneous pair rotating member, the completion is to the rotatory action of valve rod, and because there is the pushing action at the both ends of rotating member, even load on the valve rod is great, the same can be under the promotion of upper boom and lower beam can steady operation, the load is also less to the precision influence of valve rod.
The utility model discloses further set up to: the member driving mechanism comprises an upper left air chamber, an upper right air chamber, a lower left air chamber and a lower right air chamber, the two ends of the upper rod end are respectively located at the upper left air chamber, the upper right air chamber and the two ends of the upper rod are provided with an upper left piston and an upper right piston matched with the upper left air chamber and the upper right air chamber, the two ends of the lower rod end are respectively located at the lower left air chamber, the two ends of the lower rod are provided with a lower left piston and a lower right piston matched with the lower left air chamber and the lower right air chamber, and the upper left air chamber, the upper right air chamber, the lower left air chamber and the lower right air chamber are respectively provided with an air inlet pipe orifice.
Through adopting above-mentioned technical scheme, when the needs valve rod rotates, the air inlet pipe mouth of left air chamber and lower right air chamber is impressed the air in both in the accessible, left piston moves rightwards in promoting through atmospheric pressure, and then drive the upper boom and move rightwards, right piston moves leftwards under the atmospheric pressure promotes in step with this simultaneously, and then drive the lower boom and move leftwards, and the last removal piece that is fixed in the upper boom and the lower removal piece that is fixed in the lower boom take place to slide in the sliding tray, finally drive the rotating member clockwise rotation, also equally also can drive the rotating member anticlockwise rotation with lower left air chamber through upper right air chamber, this member actuating mechanism drives the valve rod rotation through the atmospheric pressure change in four air chambers, the change is stable and is difficult for receiving the influence of load on the valve rod.
The utility model discloses further set up to: the valve rod on be provided with valve rod actuating mechanism, valve rod actuating mechanism includes driving motor, actuating lever, drive master gear and drive pinion, the drive master gear sets up in driving motor's output shaft and is rotatory by driving motor drive, the drive pinion sets up on the actuating lever and drives the synchronous rotation of pinion and actuating lever, drive master gear and drive pinion intermeshing constitute the rotation of actuating lever, the valve rod top is provided with the drive recess with actuating lever looks adaptation, be provided with the complementary unit with valve rod and the synchronous pivoted of actuating lever in the drive recess.
Through adopting above-mentioned technical scheme, when member actuating mechanism breaks down, accessible driving motor drives the drive master gear rotatory, then take place rotatoryly equally with the drive pinion that drives master gear meshing, the drive pinion that is fixed in the actuating lever drives the actuating lever and rotates, match actuating lever and valve rod through complementary unit, thereby drive the valve rod by the actuating lever and rotate, when member actuating mechanism breaks down, replace member actuating mechanism by valve rod actuating mechanism, do not need to drive the valve rod rotation through the manual work, and because valve rod actuating mechanism is only interim drive arrangement, driving motor's power only need enable the valve rod rotate can, it can not be too big to the burden of cost.
The utility model discloses further set up to: the auxiliary mechanism include the cooperation piece, be provided with the cooperation recess on the actuating lever, the cooperation piece sets up in the cooperation recess, be provided with compression spring between cooperation recess bottom and the cooperation piece, be provided with on the valve rod with the supplementary recess of cooperation piece looks adaptation, the cooperation piece is provided with inclined plane and inclined plane towards the drive recess outside the other end of compression spring contact relatively, the slip is provided with in the drive recess and blocks the pole, block the pole drive cooperation piece and remove to the cooperation recess, the bottom that blocks the pole sets up the chute with inclined plane looks adaptation.
By adopting the technical scheme, when the valve rod driving mechanism is required to operate, the blocking rod slides upwards to enable the bottom end of the blocking rod to rise above the auxiliary groove, the matching block is driven to move downwards to the outside of the matching groove under the driving of the compression spring, so that the top of the matching block extends into the auxiliary groove, then the driving motor drives the driving rod to rotate and finally drives the valve rod to rotate, when the valve rod driving mechanism is not required to drive the valve rod to rotate again, the blocking rod slides downwards, after the blocking rod abuts against the inclined plane, the matching block can compress the compression spring to enable the matching block to be completely retracted into the matching groove under the action of the blocking rod, the blocking rod blocks the matching block from entering the auxiliary groove, the matching block enters and exits from the auxiliary groove through the vertical sliding of the blocking rod, so that the driving rod cannot synchronously rotate with the valve rod when the valve rod is driven by the rod driving mechanism, and the abrasion of the valve rod driving mechanism is reduced, and the valve rod driving mechanism is prevented from being damaged when the rod driving mechanism is damaged, so that the standby value is lost.
Drawings
Fig. 1 is a schematic overall structure diagram of the present invention;
FIG. 2 is a side view of the present invention with the valve stem drive mechanism removed;
FIG. 3 is a cross-sectional view A-A of the present invention;
FIG. 4 is a side view of the valve stem drive mechanism of the present invention;
FIG. 5 is a cross-sectional view B-B of the present invention;
fig. 6 is a partial enlarged view C of the present invention.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1-6, the present invention discloses a pneumatic actuator with stable operation, which comprises a valve rod 1, a rotating member 2, an upper rod 31, a lower rod 32 and a rod driving mechanism 3, wherein the upper end of the valve rod 1 is fixed on the rotating member 2, the upper rod 31 and the lower rod 32 are arranged in parallel, the rotating member 2 is arranged between the upper rod 31 and the lower rod 32, the valve rod 1 is perpendicular to the upper rod 31 and the lower rod 32, sliding grooves 33 are respectively arranged at two ends of the rotating member 2, the upper rod 31 and the lower rod 32 are fixedly provided with an upper moving block 341 and a lower moving block 342 which move in the sliding grooves 33, the rod driving mechanism 3 drives the upper rod 31 and the lower rod 32 to move in parallel, the parallel movement of the upper rod 31 and the lower rod 32 forms the rotation of the valve rod 1, when the valve rod 1 needs to rotate, the upper rod 31 and the lower rod 32 are driven by the rod driving mechanism 3 to move to both sides, at this time, the positions of the upper moving block 341 and the lower moving block 342 in the sliding grooves 33 change, and then drive the rotating member 2 and take place the rotation, and the upper end of valve rod 1 is fixed in rotating member 2, so valve rod 1 can follow rotating member 2 and rotate, through the drive effect of upper boom 31 and lower beam 32 to rotating member 2 simultaneously, accomplish the action to the rotation of valve rod 1, and owing to all have the pushing action to the both ends of rotating member 2, even load on valve rod 1 is great, can the steady operation under the promotion of upper boom 31 and lower beam 32 equally, the precision influence of load to valve rod 1 is also less.
The rod driving mechanism 3 comprises an upper left air chamber 311, an upper right air chamber 312, a lower left air chamber 321 and a lower right air chamber 322, two ends of the end of the upper rod 31 are respectively positioned at the upper left air chamber 311 and the upper right air chamber 312, two ends of the upper rod 31 are respectively provided with an upper left piston 313 and an upper right piston 314 which are matched with the upper left air chamber 311 and the upper right air chamber 312, two ends of the end of the lower rod 32 are respectively positioned at the lower left air chamber 321 and the lower right air chamber 322, two ends of the lower rod 32 are respectively provided with a lower left piston 323 and a lower right piston 324 which are matched with the lower left air chamber 321 and the lower right air chamber 322, the upper left air chamber 311, the upper right air chamber 312, the lower left air chamber 321 and the lower right air chamber 322 are respectively provided with air inlet pipe orifices 35, when the valve rod 1 is required to rotate, air can be pressed into the upper left air chamber 311 and the lower right air chamber 322 through the air inlet pipe orifices 35, the upper left piston 313 is pushed by air pressure, the upper left air chamber 31 is driven to move rightwards, and the upper rod 31 is driven to move rightwards, meanwhile, the lower right piston is synchronously pushed leftwards, and then drive lower pole 32 and move to the left, and the last movable block 341 that is fixed in upper pole 31 and the lower movable block 342 that is fixed in lower pole 32 take place to slide in sliding tray 33, finally drive swivel member 2 and rotate clockwise, also can drive swivel member 2 anticlockwise through last right air chamber 312 and lower left air chamber 321, this member actuating mechanism 3 drives the valve rod 1 through the atmospheric pressure change in four air chambers and rotates, changes stably and is difficult for receiving the influence of load on the valve rod 1.
The valve rod 1 is provided with a valve rod driving mechanism 4, the valve rod driving mechanism 4 comprises a driving motor 41, a driving rod 42, a driving main gear 43 and a driving sub gear 44, the driving main gear 43 is arranged on an output shaft of the driving motor 41 and is driven by the driving motor 41 to rotate, the driving sub gear 44 is arranged on the driving rod 42 and drives the sub gear 44 and the driving rod 42 to synchronously rotate, the driving main gear 43 and the driving sub gear 44 are mutually meshed to form the rotation of the driving rod 42, the top end of the valve rod 1 is provided with a driving groove 45 matched with the driving rod 42, an auxiliary mechanism 46 for synchronously rotating the valve rod 1 and the driving rod 42 is arranged in the driving groove 45, when the rod driving mechanism 3 fails, the driving main gear 43 can be driven by the driving motor 41 to rotate, then the driving sub gear 44 meshed with the driving main gear 43 also rotates, the driving sub gear 44 fixed on the driving rod 42 drives the driving rod 42 to rotate, through complementary unit 46 with actuating lever 42 and valve rod 1 matching to drive valve rod 1 by actuating lever 42 and rotate, when member actuating mechanism 3 broke down, replace member actuating mechanism 3 by valve rod actuating mechanism 4, need not rotatory through manual drive valve rod 1, and because valve rod actuating mechanism 4 is only interim drive arrangement, the power of driving motor 41 only need enable valve rod 1 rotate can, not too big to the burden of cost.
The auxiliary mechanism 46 includes a matching block 461, a matching groove 462 is arranged on the driving rod 42, the matching block 461 is arranged on the matching groove 462, a compression spring 463 is arranged between the bottom of the matching groove 462 and the matching block 461, an auxiliary groove 464 matched with the matching block 461 is arranged on the valve rod 1, a bevel 4611 is arranged at the other end of the matching block 461 opposite to the contact with the compression spring 463, the bevel 4611 faces the outside of the driving groove 45, a blocking rod 465 is arranged in the driving groove 45 in a sliding manner, the blocking rod 465 drives the matching block 461 to move towards the matching groove 462, a chute matched with the bevel is arranged at the bottom of the blocking rod, when the valve rod driving mechanism 4 is required to operate, the blocking rod 465 slides upwards to enable the bottom end of the blocking rod 465 to rise above the auxiliary groove 464, at the moment, the driving matching block 461 moves towards the outside of the matching groove 462 under the driving of the compression spring 463 to enable the top of the matching block 461 to stretch into the auxiliary groove 464, then the driving motor 41 drives the driving rod 42 to rotate, finally drives the valve rod 1 to rotate, when the valve rod 1 is not required to be driven to rotate by the valve rod driving mechanism 4, the blocking rod 465 slides downwards, after the blocking rod 465 abuts against the inclined plane 4611, under the action of the blocking rod 465, the matching block 461 compresses the compression spring 463 to enable the matching block 461 to be completely retracted into the matching groove 462, the blocking rod 465 blocks the matching block 461 to enter the auxiliary groove 464, and the matching block 461 enters and exits the auxiliary groove 464 by the up-and-down sliding of the blocking rod 465, so that when the valve rod 1 is driven by the rod driving mechanism 3, the driving rod 42 cannot rotate synchronously with the valve rod 1, the abrasion of the valve rod driving mechanism 4 is reduced, and when the rod driving mechanism 3 is damaged, the valve rod driving mechanism 4 is also damaged, and the standby value is lost.
Claims (4)
1. A pneumatic actuator that even running, its characterized in that: including the valve rod, the rotating member, the upper boom, lower beam and member actuating mechanism, the rotating member is fixed in to the valve rod upper end, upper boom and lower beam parallel arrangement, the rotating member sets up between upper boom and lower beam and valve rod perpendicular to upper boom and lower beam, the both ends of rotating member are provided with the sliding tray respectively, upper boom and lower beam are fixed to be provided with and move up the movable block and move down the movable block that move in the sliding tray, member actuating mechanism drives upper boom and lower beam parallel movement respectively, the parallel movement of upper boom and lower beam constitutes the rotation of valve rod.
2. A smooth-running pneumatic actuator as claimed in claim 1, wherein: the member driving mechanism comprises an upper left air chamber, an upper right air chamber, a lower left air chamber and a lower right air chamber, the two ends of the upper rod end are respectively located at the upper left air chamber, the upper right air chamber and the two ends of the upper rod are provided with an upper left piston and an upper right piston matched with the upper left air chamber and the upper right air chamber, the two ends of the lower rod end are respectively located at the lower left air chamber, the two ends of the lower rod are provided with a lower left piston and a lower right piston matched with the lower left air chamber and the lower right air chamber, and the upper left air chamber, the upper right air chamber, the lower left air chamber and the lower right air chamber are respectively provided with an air inlet pipe orifice.
3. A smooth-running pneumatic actuator as claimed in claim 1, wherein: the valve rod on be provided with valve rod actuating mechanism, valve rod actuating mechanism includes driving motor, actuating lever, drive master gear and drive pinion, the drive master gear sets up in driving motor's output shaft and is rotatory by driving motor drive, the drive pinion sets up on the actuating lever and drives the synchronous rotation of pinion and actuating lever, drive master gear and drive pinion intermeshing constitute the rotation of actuating lever, the valve rod top is provided with the drive recess with actuating lever looks adaptation, be provided with the complementary unit with valve rod and the synchronous pivoted of actuating lever in the drive recess.
4. A smooth-running pneumatic actuator as claimed in claim 3, wherein: the auxiliary mechanism include the cooperation piece, be provided with the cooperation recess on the actuating lever, the cooperation piece sets up in the cooperation recess, is provided with compression spring between cooperation recess bottom and the cooperation piece, be provided with on the valve rod with the supplementary recess of cooperation piece looks adaptation, the cooperation piece is provided with inclined plane and inclined plane towards the drive recess outside the other end of compression spring contact relatively, the slip is provided with in the drive recess and blocks the pole, blocks the pole drive cooperation piece and removes to the cooperation recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120250606.6U CN214466458U (en) | 2021-01-28 | 2021-01-28 | Pneumatic actuator capable of running stably |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120250606.6U CN214466458U (en) | 2021-01-28 | 2021-01-28 | Pneumatic actuator capable of running stably |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214466458U true CN214466458U (en) | 2021-10-22 |
Family
ID=78116713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120250606.6U Active CN214466458U (en) | 2021-01-28 | 2021-01-28 | Pneumatic actuator capable of running stably |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214466458U (en) |
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2021
- 2021-01-28 CN CN202120250606.6U patent/CN214466458U/en active Active
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