CN220792234U - Adjustable pneumatic actuator - Google Patents

Abstract

The utility model provides an adjustable pneumatic actuator which is characterized by comprising a cylinder cover (1), a spring assembly (2), a cylinder body (3), a piston (4), a gear shaft (5), an adjusting bolt (6), an electric wire terminal (8), a movable block (9) and a self-resetting micro switch (10), wherein the interior of the cylinder cover (1) and the interior of the cylinder body (3) are divided into two sealed cavities by the piston (4), a spring assembly (2) installation space used for a single-acting actuator is reserved in the cylinder cover (1) and the interior of the piston (4), the piston (4) and the gear shaft (5) are in meshed connection, the adjusting bolt (6) is installed on the cylinder body (3), the interior can realize stroke adjustment of the piston (4), the movable block (9) is fixed on the gear shaft (5), and the self-resetting micro switch (10) and the electric wire terminal (8) are fixed in the cylinder body (3) by bolts. The utility model improves the standardization and serialization of the pneumatic actuator, and has high reliability and good economy.

Description

Adjustable pneumatic actuator

Technical Field

The utility model relates to a pneumatic actuator, in particular to an adjustable 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 commonly called a pneumatic head. The conventional pneumatic actuator has the following disadvantages: the control precision is lower, and the pneumatic actuator of the double-acting type can not return to the preset position after the air is cut off, and the fine adjustment is needed through the stroke limit adjusting bolt, so that the pneumatic actuator is consistent with the valve switch position when in the full-open position or the full-closed position. Accordingly, there is a need for a rational improvement over the prior art in view of the various drawbacks of the above-described aspects.

Disclosure of Invention

The utility model provides an adjustable pneumatic actuator, which is characterized by comprising a cylinder cover 1, a spring assembly 2, a cylinder body 3, a piston 4, a gear shaft 5, an adjusting bolt 6, an electric wire terminal 8, a movable block 9 and a self-resetting micro switch 10, wherein the inside of the cylinder cover 1 and the cylinder body 3 is divided into two sealing chambers by the piston 4, a spring assembly 2 installation space used by the single-acting actuator is reserved in the cylinder cover 1 and the piston 4, the piston 4 and the gear shaft 5 are in gear engagement connection, the adjusting bolt 6 is installed on the cylinder body 3, the stroke adjustment of the piston 4 can be realized in the inside, the movable block 9 is fixed on the gear shaft 5, and the self-resetting micro switch 10 and the electric wire terminal 8 are fixed in the cylinder body 3 by bolts.

Further, it is additionally provided with a navigation plug 7.

Further, in the aviation plug 7, the aviation plug is connected with an aviation plug seat by adopting a bayonet, and the aviation plug seat is fixed on the actuator body by a bolt.

Further, the self-resetting micro switch 10 is connected with the navigation plug 7 by a cable.

Further, the cylinder cover 1 and the cylinder body 3 are fixed by bolting.

Further, the piston 4 and the gear shaft 5 are connected through the meshing of gears with equal tooth angles on the dividing circle and equal modulus.

Further, the adjusting bolt 6 is mounted on the cylinder 3 through a screw hole.

Further, the movable block 9 is fixed on the gear shaft 5 by a socket head cap screw.

The utility model relates to an adjustable pneumatic actuator, which has the beneficial effects that: the aerial plug is added through design, so that on-site wiring and installation are facilitated, the installation time on a ship is greatly saved, and the operability is improved; by improving the adjusting mode, as the two ends of the end cover of the cylinder body can be adjusted only to adjust the state of opening or closing the valve, the cylinder body is additionally provided with the adjusting bolt, after improvement, the opening and closing positions can be adjusted left and right respectively after integrated design, the assembly complexity is greatly reduced, the assembly precision and efficiency of the pneumatic actuator are improved, great convenience is provided for later maintenance work, various potential safety hazards are solved, and the problems of convenience in installation and debugging, simplicity in control and the like are also solved while the equipment is kept high-precision and automatic; the limiting grooves for installing the springs are reserved at the cylinder cover and the piston, so that the double-acting and single-acting universal integrated design is realized, the standardization and serialization of the pneumatic actuator are improved, meanwhile, the reliability is higher, the economy is better, and the pneumatic actuator can be popularized and applied to various required fields.

Drawings

The utility model is described in further detail below with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of an adjustable pneumatic actuator according to an embodiment of the present utility model.

Fig. 2 is a schematic diagram of the operation of an adjustable pneumatic actuator according to an embodiment of the present utility model.

Reference numerals illustrate:

1. a cylinder cover; 2. spring assembly (single action); 3. a cylinder; 4. a piston; 5. a gear shaft; 6. an adjusting bolt; 7. the aviation plug connector; 8. a wire terminal; 9. a movable block; 10. a self-resetting micro-switch.

Detailed Description

The utility model provides a detailed description of embodiments of the utility model that follow in conjunction with the accompanying drawings.

In order to better improve the service performance and requirements of the pneumatic actuator, the utility model provides an adjustable pneumatic actuator, and by improving the structural form, a limit switch is designed in the pneumatic actuator and a navigation plug is additionally arranged in the pneumatic actuator, so that the on-site wiring and the installation are convenient, and an adjusting part is designed outside a cylinder body of the pneumatic actuator, so that the on-off position can be effectively adjusted, the assembly efficiency is improved, and the sealing performance is improved.

The utility model improves the reliability, safety and universality of the pneumatic actuator mainly by adding the aviation plug, improving the adjusting mode and the single-action and double-action integrated design.

FIG. 1 is a schematic diagram of an adjustable pneumatic actuator according to an embodiment of the present utility model. As shown in fig. 1, the adjustable pneumatic actuator according to the embodiment of the utility model mainly comprises a cylinder cover 1, a spring assembly 2, a cylinder body 3, a piston 4, a gear shaft 5, an adjusting bolt 6, a navigation plug 7, an electric wire terminal 8, a movable block 9 and a self-resetting micro switch 10. The product is mainly made of stainless steel.

The cylinder cover 1 and the cylinder body 3 are fixedly connected through bolts, and the interior of the cylinder cover is divided into two sealing chambers through a piston 4.

The spring component 2 installation space used for the single-acting actuator is reserved in the cylinder cover 1 and the piston 4, and the same components can simultaneously meet the assembly of the actuators in the two working modes of double acting and single acting, so that the standardization degree of products is effectively improved.

The piston 4 and the gear shaft 5 are connected through the meshing of the gears with equal modulus and tooth angles on the dividing circle, and the gas pressure or the spring pushes the piston 4 to move in a linear stroke in the cylinder body 3 to drive the gear shaft 5 to rotate clockwise or anticlockwise so as to realize the opening and closing actions of the controlled valve.

The adjusting bolt 6 is installed on the cylinder body 3 through a threaded hole, and the stroke adjustment of the piston 4 can be realized inside the adjusting bolt for eliminating errors generated in the machining process or the assembling process. The adjusting part is designed outside the pneumatic actuator cylinder body, so that the opening and closing positions can be effectively adjusted, and the assembly efficiency and the sealing performance are improved.

The limit switch is designed in the pneumatic actuator and is additionally provided with the navigation plug 7, so that the on-site wiring and installation are facilitated.

In the aviation plug 7, the aviation plug is connected with the aviation plug seat by adopting a bayonet type, the aviation plug seat is fixed on the actuator body by bolts, and the bayonet type connection speed is high, so that the aviation plug is a reliable and rapid connection and separation mode.

The movable block 9 is fixed on the gear shaft 5 through an inner hexagon screw, the self-resetting micro switch 10 and the wire terminal 8 are fixed inside the cylinder body 3 through bolts, and the self-resetting micro switch 10 and the aviation plug 7 are connected through a cable, so that position feedback after the action of the actuator is realized. The utility model realizes the single-action and double-action integrated design by improving the adjusting mode.

Fig. 2 is a schematic diagram of the operation of an adjustable pneumatic actuator according to an embodiment of the present utility model. As shown in fig. 2, the double acting principle of operation is: the inlet A is used for charging air, compressed air pushes the piston 4 to move outwards, so that the actuator gear shaft 5 rotates 90 degrees anticlockwise, and the outlet B is used for discharging air; and conversely, the inlet air is introduced into the port B, the compressed air pushes the piston 4 to move inwards, the actuator gear shaft rotates 90 degrees clockwise, and the outlet air is introduced into the port A.

The single-action working principle is as follows: the air inlet of the port A, the compressed air overcomes the spring force to push the piston 4 to move outwards, the actuator gear shaft 5 rotates 90 degrees anticlockwise, and the air outlet of the port B; the actuator loses air, the piston moves inwards under the action of spring force, the actuator gear shaft 5 rotates 90 degrees clockwise, and the port A is exhausted.

It should be noted that the foregoing is merely illustrative and explanatory of the utility model, and that any modifications and substitutions of the utility model will be apparent to those skilled in the art, and are intended to be within the scope of the utility model.

Claims (8)

1. The utility model provides a pneumatic actuator with adjustable, a serial communication port, including cylinder cap (1), spring assembly (2), cylinder body (3), piston (4), gear shaft (5), adjusting bolt (6), electric wire terminal (8), movable block (9), from reset micro-gap switch (10), cylinder cap (1), inside two sealed cavities of dividing into through piston (4) of cylinder body (3), cylinder cap (1), spring assembly (2) installation space that single-acting actuator used is reserved to inside piston (4), gear shaft (5) gear engagement connects, adjusting bolt (6) are installed on cylinder body (3), the stroke control of inside realizable piston (4) is fixed on gear shaft (5), from reset micro-gap switch (10), electric wire terminal (8) are fixed inside cylinder body (3) through the bolt.

2. An adjustable pneumatic actuator as claimed in claim 1, characterized in that it is provided with an aerial plug (7).

3. The adjustable pneumatic actuator according to claim 2, wherein in the aviation plug (7), the aviation plug is connected with an aviation plug socket by a bayonet, and the aviation plug socket is fixed on the actuator body by a bolt.

4. An adjustable pneumatic actuator as claimed in claim 2, characterized in that the self-resetting microswitch (10) is connected to the navigation plug (7) by means of a cable.

5. An adjustable pneumatic actuator as claimed in claim 1, characterized in that the cylinder head (1) and the cylinder block (3) are fixed by bolting.

6. An adjustable pneumatic actuator as claimed in claim 1, characterized in that the piston (4) and the gear shaft (5) are connected by means of a gear engagement of equal modulus and of equal tooth angle on the pitch circle.

7. An adjustable pneumatic actuator as claimed in claim 1, characterized in that the adjusting bolt (6) is mounted on the cylinder (3) by means of a threaded hole.

8. An adjustable pneumatic actuator as claimed in claim 1, characterized in that the movable block (9) is fixed to the gear shaft (5) by means of socket head cap screws.