CN211550702U

CN211550702U - Manual-automatic integrated single-action pneumatic actuator

Info

Publication number: CN211550702U
Application number: CN201922435992.1U
Authority: CN
Inventors: 陈立; 唐亚春
Original assignee: Jiangsu Huilang Machinery Technology Co ltd
Current assignee: Jiangsu Huilang Machinery Technology Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-09-22
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a manual-automatic integrated single-action pneumatic actuator, which comprises a pneumatic actuator body; the pneumatic actuator body comprises an end cap; a T-shaped nut is mounted on the outer side of the end cover; and a hand wheel is fixed on the T-shaped nut. The utility model discloses an end cover and T type nut are with this body coupling of hand wheel and pneumatic actuator, form the pneumatic actuator of an integral type, and the power that rotary motion was done to the hand wheel drive T type nut through T type nut turns into the power that linear motion was done to T type screw rod to drive pneumatic actuator work, this structure is pleasing to the eye, and is convenient, and is small, light in weight, highly integrated.

Description

Manual-automatic integrated single-action pneumatic actuator

Technical Field

The utility model relates to a pneumatic actuator technical field specifically is a manual-automatic's single action pneumatic actuator.

Background

The pneumatic actuator is an actuating device for opening and closing or regulating a valve by air pressure, is also called a pneumatic actuating mechanism or a pneumatic device, but is generally called a pneumatic head. The actuating mechanism and the adjusting mechanism of the pneumatic actuator are a unified whole, and the actuating mechanism comprises a film type, a piston type, a shifting fork type and a gear-rack type. The piston type stroke is long, and the piston type thrust mechanism is suitable for occasions requiring large thrust; the diaphragm type stroke is small, and the valve rod can only be directly driven. The shifting fork type pneumatic actuator has the characteristics of large torque, small space, more accordance with a torque curve of a valve and the like. However, the bottom of the existing shifting fork type pneumatic actuator is generally additionally provided with a clutch type hand wheel mechanism, so that the existing shifting fork type pneumatic actuator occupies large space, is heavy in weight and is high in cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a manual-automatic's single action pneumatic actuator to solve the problem of shifting fork formula pneumatic actuator and hand wheel mechanism separation among the prior art.

In order to achieve the purpose, the utility model discloses a following technical method realizes:

a manual-automatic integrated single-action pneumatic actuator comprises a pneumatic actuator body; the pneumatic actuator body comprises an end cap; a T-shaped nut is mounted on the outer side of the end cover; and a hand wheel is fixed on the T-shaped nut.

Further, the pneumatic actuator body further comprises a T-shaped screw rod; the T-shaped screw is in threaded connection with a T-shaped nut; and the inner side end of the T-shaped screw rod is connected with a spring adapter.

Furthermore, a hand wheel flange is fixed on the end cover; the T-shaped nut is sleeved between the end cover and the hand wheel flange; the T-shaped nut is used for converting the power of the hand wheel driving the T-shaped nut to rotate into the power of the T-shaped screw rod to do linear motion.

Furthermore, a spring is sleeved on the outer side of the T-shaped screw rod.

Furthermore, the bottom of the spring adapter is connected with a piston.

Further, the spring adapter is installed on the piston through a sealing bolt.

Further, the piston is rotatably connected with a shifting fork.

Further, the piston is rotatably connected with the shifting fork through a ball.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is:

the utility model discloses an end cover and T type nut are with this body coupling of hand wheel and pneumatic actuator, form the pneumatic actuator of an integral type, and the power that rotary motion was done to the hand wheel drive T type nut through T type nut turns into the power that linear motion was done to T type screw rod to drive pneumatic actuator work, this structure is pleasing to the eye, and is convenient, and is small, light in weight, highly integrated.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of the structure of the present invention;

fig. 3 is a schematic view of a partial structure of the present invention.

Reference numerals: 1-a pneumatic actuator body; 2-end cap; 3-T-shaped nuts; 4-hand wheel; 5-T-shaped screw; 6-spring adapter; 7-a hand wheel flange plate; 8-a spring; 9-a piston; 10-a sealing bolt; 11-shifting fork; 12-a ball bearing; 13-a fork pin; 14-output shaft.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1, 2 and 3, the manual-automatic integrated single-action pneumatic actuator comprises a pneumatic actuator body 1; the pneumatic actuator body 1 comprises an end cover 2; the outer side of the end cover 2 is provided with a T-shaped nut 3; a hand wheel 4 is fixed on the T-shaped nut 3.

The pneumatic actuator body 1 also comprises a T-shaped screw 5; the T-shaped screw rod 5 is in threaded connection with the T-shaped nut 3; the inner side end of the T-shaped screw 5 is connected with a spring adapter 6. The boss at the front end of the T-shaped screw rod 5 is arranged inside the spring adapter 6.

A hand wheel flange 7 is fixed on the end cover 2; the T-shaped nut 3 is sleeved between the end cover 2 and the hand wheel flange 7; the T-shaped nut 3 is used for converting the power of the hand wheel 4 driving the T-shaped nut 3 to rotate into the power of the T-shaped screw 5 to do linear motion. And a spring 8 is sleeved on the outer side of the T-shaped screw 5. The bottom of the spring adapter 6 is connected with a piston 9. The spring adapter 6 is mounted on the piston 9 by means of a sealing bolt 10. The piston 9 is rotatably connected with a shifting fork 11. The piston 9 is rotatably connected with a shifting fork 11 through a ball 12, the ball 12 is arranged at the front end of the piston 9, the ball 12 is clamped in a U-shaped groove of the shifting fork, and the shifting fork 11 is connected with an output shaft 14 of the actuator through a shifting fork pin 13.

The working principle is as follows:

when the power is off and the gas is off on site, the spring of the single-action pneumatic actuator can reset to push the piston to move towards the middle, and the driven load is closed/opened emergently. At this time, since the pneumatic actuator is not driven by compressed air, the pneumatic actuator cannot continue to operate by compressed air. If the load which needs to be driven to be emergently closed/opened is opened/closed again under the condition of power failure and gas failure, a manual operation mode can be adopted, and the specific steps are as follows: the hand wheel is rotated, the hand wheel drives the T-shaped nut to rotate, the rotary motion of the T-shaped nut can be converted into the linear motion of the T-shaped screw rod, the spring adapter is pushed/pulled by the T-shaped screw rod, the spring seat resists the elastic force of the spring, the piston is pulled by the sealing bolt, the piston drives the shifting fork to rotate through the ball, the shifting fork drives the output shaft to rotate through the shifting fork pin, and the load which is emergently closed/opened due to the spring resetting is opened/closed again under the condition that no air source exists.

The utility model discloses design into an integral type with hand wheel mechanism and executor, it is pleasing to the eye, convenient, small, light in weight highly integrates.

The present application has been described in detail above, and the present invention uses specific embodiments to explain the principle and the implementation of the present application, and the description of the above embodiments is only used to help understand the method and the core idea of the present application, and there are changes in the specific implementation and the application scope, in summary, the present description should not be understood as the limitation of the present application.

Claims

1. A manual-automatic integrated single-action pneumatic actuator is characterized by comprising a pneumatic actuator body; the pneumatic actuator body comprises an end cap; a T-shaped nut is mounted on the outer side of the end cover; and a hand wheel is fixed on the T-shaped nut.

2. The automated single-acting pneumatic actuator of claim 1, wherein the pneumatic actuator body further comprises a T-screw; the T-shaped screw is in threaded connection with a T-shaped nut; and the inner side end of the T-shaped screw rod is connected with a spring adapter.

3. The automated and manual single-action pneumatic actuator of claim 2, wherein a hand wheel flange is secured to the end cap; the T-shaped nut is sleeved between the end cover and the hand wheel flange; the T-shaped nut is used for converting the power of the hand wheel driving the T-shaped nut to rotate into the power of the T-shaped screw rod to do linear motion.

4. The manual-automatic integrated single-action pneumatic actuator according to claim 2, wherein a spring is sleeved on the outer side of the T-shaped screw.

5. The automated and manual single-action pneumatic actuator of claim 2, wherein a piston is connected to the bottom of the spring adapter.

6. The automated and manual single-action pneumatic actuator of claim 5, wherein the spring adapter is mounted to the piston by a seal bolt.

7. An automated manual single action pneumatic actuator according to claim 5 wherein the piston is rotatably connected to a yoke.

8. An automated hand-held single-acting pneumatic actuator as claimed in claim 7, wherein the piston is rotatably connected to the yoke by a ball bearing.