CN219673461U - Stable opening and closing type pneumatic actuator - Google Patents

Abstract

The utility model discloses a stable opening and closing type pneumatic actuator, which relates to the technical field of pneumatic actuators and comprises a valve, wherein a valve control rotating head is arranged at the top of the valve, a supporting frame is fixedly arranged at the top of the valve, a cross support is fixedly arranged at the top end of the supporting frame, and an outer shell is fixedly arranged on the outer surface of the cross support. According to the stable opening and closing type pneumatic actuator, high-pressure gas is injected into the air tap, so that the arc-shaped rod is pushed out, the connecting column drives the auxiliary gear to roll between the main gear and the inner gear, rotation of the main gear is achieved, the main gear rotates to drive the rotating column, rotation control of the valve control rotating head is achieved, when the air pressure is reduced through the arrangement of the spring, the arc-shaped rod enters the arc-shaped sleeve again due to the reverse force generated by the spring, reset of the valve control rotating head is achieved, the whole device is arranged inside the outer shell, space utilization is reasonable, the structure is stable, and stable opening and closing can be achieved.

Description

Stable opening and closing type pneumatic actuator

Technical Field

The utility model relates to the technical field of pneumatic actuators, in particular to a stable opening and closing type pneumatic actuator.

Background

The pneumatic actuator is an actuating device for driving the opening and closing or adjusting valve by air pressure, and is also called a pneumatic actuating mechanism or a pneumatic device, but is commonly called a pneumatic head. Pneumatic actuators are sometimes also equipped with certain auxiliary devices. Valve positioners and hand wheel mechanisms are commonly used. The valve positioner has the function of improving the performance of the actuator by utilizing a feedback principle, so that the actuator can accurately position according to the control signal of the controller. The hand wheel mechanism is used for directly operating the control valve when the control system fails due to power failure, gas interruption, no output of the controller or failure of the executing mechanism, so as to maintain normal production.

The prior patent (publication number: CN 214466458U) discloses a pneumatic actuator which runs stably, and relates to the technical field of pneumatic actuators. Including valve rod, rotating member, upper boom, lower boom and member actuating mechanism, the valve rod upper end is fixed in the rotating member, and upper boom and lower boom parallel arrangement, rotating member set up between upper boom and lower boom and valve rod perpendicular to upper boom and lower boom, and the both ends of rotating member are provided with the sliding tray respectively, and upper boom and lower boom are fixed to be provided with last movable block and the lower movable block that removes in the sliding tray, and member actuating mechanism drive drives upper boom and lower boom parallel movement respectively, and the parallel movement of upper boom and lower boom constitutes the rotation of valve rod. The inventor finds that the following problems in the prior art are not solved well in the process of realizing the scheme: the device structure occupies the volume great, and four air chambers are mutually supported and are accomplished, and the structure is comparatively troublesome.

Disclosure of Invention

The utility model mainly aims to provide a stable opening and closing type pneumatic actuator which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a steady pneumatic actuator that opens and close, includes the valve, the top of valve is equipped with valve control rotating head, the top of valve control rotating head is provided with the column spinner, the top fixed mounting of valve has the support frame, the top fixed mounting of support frame has the cross support, the surface fixed mounting of cross support has the shell body, the column spinner rotates the fixed master gear that has cup jointed of cross support, the one end of top one side fixed surface connection clockwork spring of column spinner, the remaining one end fixed mounting of clockwork spring is at the shell body inner wall surface.

Preferably, the inner wall surface of the outer shell is fixedly provided with two limiting rings, a plurality of inner gear teeth are equidistantly arranged between the two limiting rings on the inner surface of the outer shell, and a pinion is connected between the inner gear teeth and the main gear in a meshed manner.

Preferably, an arc sleeve is fixedly arranged on the inner surface of one side wall of the outer shell, an arc rod is installed at one end of the arc sleeve in a penetrating mode, a piston is arranged in the arc rod, and one end of the arc rod is fixedly connected with one side surface of the piston.

Preferably, the middle part of the pinion is rotatably provided with a connecting column in a penetrating way, and the connecting column is fixedly connected with the bottom of the remaining end of the arc-shaped rod.

Preferably, an air tap is installed through one side wall of the arc sleeve, and the remaining end of the air tap penetrates through one side wall of the outer shell.

Preferably, a cover plate is fixedly arranged at the top of the outer shell, and the top end of the rotary column is rotatably arranged in the middle of the bottom surface of the cover plate.

Compared with the prior art, the utility model has the following beneficial effects: through injecting high-pressure gas into the air cock for the arc pole is released, thereby makes the spliced pole drive the pinion and rolls between main gear and interior tooth, realizes the rotation of main gear, and main gear rotates and drives the column spinner, thereby realizes the control of rotation to valve control rotary head, when making the atmospheric pressure reduce through setting up the clockwork spring, makes the arc pole enter into in the arc sleeve again, realizes the reset of valve control rotary head, and whole device sets up inside the shell body, and the space utilization is reasonable, stable in structure can realize steadily opening and closing.

Drawings

FIG. 1 is a schematic view of the overall structure of a stationary start-up and shut-down pneumatic actuator of the present utility model;

FIG. 2 is a schematic perspective view of a cross bracket and a spring of the stable opening and closing type pneumatic actuator of the utility model;

FIG. 3 is a schematic perspective view of an arc sleeve of a tank body of a stable opening and closing type pneumatic actuator;

fig. 4 is a schematic perspective view of the outer casing of the stable opening and closing type pneumatic actuator of the present utility model.

In the figure: 1. a valve; 2. a valve control swivel; 3. a spin column; 4. a support frame; 5. a cross bracket; 6. an outer housing; 7. an air tap; 8. a cover plate; 9. a spring; 10. an arc-shaped sleeve; 11. an arc-shaped rod; 12. a pinion gear; 13. a main gear; 14. a connecting column; 15. a confinement ring; 16. internal gear teeth.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1-4, the stable opening and closing type pneumatic actuator comprises a valve 1, a valve control rotating head 2 is arranged at the top of the valve 1, a rotating column 3 is arranged at the top of the valve control rotating head 2, a supporting frame 4 is fixedly arranged at the top of the valve 1, a cross support 5 is fixedly arranged at the top end of the supporting frame 4, an outer shell 6 is fixedly arranged on the outer surface of the cross support 5, a main gear 13 is fixedly sleeved on the rotating column 3 in a rotating manner through the cross support 5, one end of a spring 9 is fixedly connected with one side surface of the top end of the rotating column 3, the remaining end of the spring 9 is fixedly arranged on the inner wall surface of the outer shell 6, a connecting column 14 drives a secondary gear 12 to roll between the main gear 13 and an inner gear 16, rotation of the main gear 13 is realized, and the main gear 13 rotates to drive the rotating column 3, so that rotation control of the valve control rotating head 2 is realized.

In this embodiment, two limiting rings 15 are fixedly mounted on the inner wall surface of the outer casing 6, a plurality of inner gear teeth 16 are equidistantly arranged between the two limiting rings 15 on the inner surface of the outer casing 6, and a pinion 12 is connected between the inner gear teeth 16 and the main gear 13 in a meshed manner.

In this embodiment, an arc sleeve 10 is fixedly installed on the inner surface of a side wall of the outer casing 6, an arc rod 11 is installed at one end of the arc sleeve 10 in a penetrating manner, a piston is arranged in the arc rod 11, one end of the arc rod 11 is fixedly connected with one side surface of the piston, the arc rod 11 is matched with the inner part of the arc sleeve 10, a middle air nozzle 7 is externally connected with a high-pressure air source, and high-pressure air is injected into the air nozzle 7, so that the arc rod 11 is pushed out.

In this embodiment, the middle part of the pinion 12 is rotatably installed through a connecting post 14, and the connecting post 14 is fixedly connected to the bottom of the remaining end of the arc-shaped rod 11.

In this embodiment, an air tap 7 is installed through a sidewall of the arc-shaped sleeve 10, and the remaining end of the air tap 7 penetrates through a sidewall of the outer housing 6.

In this embodiment, the top of the outer casing 6 is fixedly provided with a cover plate 8, and the top end of the rotating column 3 is rotatably installed in the middle of the bottom surface of the cover plate 8.

Working principle: according to the utility model, the arc-shaped rod 11 is internally matched with the arc-shaped sleeve 10, the middle air tap 7 is externally connected with a high-pressure air source, the arc-shaped rod 11 is pushed out by injecting high-pressure air into the air tap 7, so that the connecting column 14 drives the auxiliary gear 12 to roll between the main gear 13 and the inner gear 16, the rotation of the main gear 13 is realized, the main gear 13 rotates to drive the rotary column 3, the rotation control of the valve control rotary head 2 is realized, when the air pressure is reduced by arranging the spring 9, the reverse force generated by the spring 9 again enables the arc-shaped rod 11 to enter the arc-shaped sleeve 10, the valve control rotary head 2 is reset, the whole device is arranged in the outer shell 6, the space is reasonably utilized, the structure is stable, and the stable opening and closing can be realized.

The circuit, the electronic components and the control module are all in the prior art, and can be completely realized by a person skilled in the art, and needless to say, the protection of the utility model does not relate to the improvement of software and a method.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides a steady start-stop type pneumatic actuator, includes valve (1), its characterized in that: the top of valve (1) is equipped with valve control rotating head (2), the top of valve control rotating head (2) is provided with column spinner (3), the top fixed mounting of valve (1) has support frame (4), the top fixed mounting of support frame (4) has cross support (5), the surface fixed mounting of cross support (5) has shell body (6), column spinner (3) rotate and run through cross support (5) fixed the cup joint master gear (13), the one end of top one side fixed surface connection clockwork spring (9) of column spinner (3), the remaining one end fixed mounting of clockwork spring (9) is at shell body (6) inner wall surface.

2. The smooth-opening and closing pneumatic actuator of claim 1, wherein: two limiting rings (15) are fixedly arranged on the inner wall surface of the outer shell (6), a plurality of inner gear teeth (16) are arranged on the inner surface of the outer shell (6) between the two limiting rings (15) at equal intervals, and a pinion (12) is connected between the inner gear teeth (16) and the main gear (13) in a meshed mode.

3. The smooth-opening and closing pneumatic actuator of claim 1, wherein: an arc sleeve (10) is fixedly arranged on the inner surface of one side wall of the outer shell (6), an arc rod (11) is installed at one end of the arc sleeve (10) in a penetrating mode, a piston is arranged in the arc rod (11), and one end of the arc rod (11) is fixedly connected with one side surface of the piston.

4. The steady start-stop pneumatic actuator of claim 2, wherein: the middle part of pinion (12) rotates and runs through and installs spliced pole (14), spliced pole (14) fixed connection arc pole (11) remain one end bottom.

5. The smooth-opening pneumatic actuator of claim 3, wherein: an air tap (7) is installed on one side wall of the arc-shaped sleeve (10) in a penetrating mode, and the remaining end of the air tap (7) penetrates through one side wall of the outer shell (6).

6. The smooth-opening and closing pneumatic actuator of claim 1, wherein: the top of shell body (6) fixed mounting has apron (8), the top of column spinner (3) rotates the bottom surface middle part of installing at apron (8).