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Double-acting poking fork type pneumatic actuation mechanism

A pneumatic actuator, double-acting technology, applied in the direction of engine components, mechanical equipment, valve operation/release devices, etc., can solve the problems of manual adjustment, laborious, inconvenient operation, etc., to achieve less wear, improved work efficiency, and convenient maintenance. Effect

Inactive Publication Date: 2016-09-21
苏州博合雅工程材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing fork-type pneumatic actuators are laborious and inconvenient to manually adjust.

Method used

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  • Double-acting poking fork type pneumatic actuation mechanism
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  • Double-acting poking fork type pneumatic actuation mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: A double-acting fork-type pneumatic actuator, including a box body 1, a cylinder cavity 2 and a spring cavity 3, the cylinder cavity 2 is sealed and installed on one side of the box body 1, and the spring cavity The body 3 is installed on the other side of the box body 1, and the box body 1 is provided with a rotating cylinder 4, and the front end and the rear end of the rotating cylinder 4 are respectively embedded in the respective through holes of the front plate and the rear plate of the box body 1, The outer surface of the rotating cylinder 4 is provided with a front fork 5 and a rear fork 6 along the axial direction, a connecting rod 7 runs through the guide block 8 and the two ends of the connecting rod 7 are respectively embedded in the front fork 5 and the rear fork 6 In the respective guide grooves 9, the connecting rod 7 is connected with the respective guide grooves 9 of the front shift fork 5 and the rear shift fork 6 through a guide copper sle...

Embodiment 2

[0026] Embodiment 2: A double-acting fork type pneumatic actuator, including a box body 1, a cylinder cavity 2 and a spring cavity 3, the cylinder cavity 2 is sealed and installed on one side of the box body 1, and the spring cavity The body 3 is installed on the other side of the box body 1, and the box body 1 is provided with a rotating cylinder 4, and the front end and the rear end of the rotating cylinder 4 are respectively embedded in the respective through holes of the front plate and the rear plate of the box body 1, The outer surface of the rotating cylinder 4 is provided with a front fork 5 and a rear fork 6 along the axial direction, a connecting rod 7 runs through the guide block 8 and the two ends of the connecting rod 7 are respectively embedded in the front fork 5 and the rear fork 6 In the respective guide grooves 9, the connecting rod 7 is connected with the respective guide grooves 9 of the front shift fork 5 and the rear shift fork 6 through a guide copper sle...

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PUM

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Abstract

The invention discloses a double-acting poking fork type pneumatic actuation mechanism. The mechanism comprises a box body, a cylinder cavity and a spring cavity; the cylinder cavity is sealed and mounted on one side of the box body; the spring cavity is mounted on the other side of the box body; a rotating cylinder is arranged in the box body; a left side projection part and a right side projection part are symmetrically arranged on two sides of a back poking fork; the respective upper surfaces of the left side projection part and the right side projection part are 90 degrees; a left stopper and a right stopper respectively matched with the left side projection part and the right side projection part are arranged in the box body; when the back poking fork is located in a first state, the left side projection part is contacted with the left stopper; when the back poking fork is located in a second state, the right side projection part is contacted with the right stopper; and the cylinder cavity further includes a circular shell, a left end cover and a right end cover sealed and mounted on two sides of the circular shell, and a circular piston plate positioned in the circular shell. The mechanism facilitates control of precise switching of opening and closing, prevents incomplete closing and opening conditions, reduces the wear loss among parts, and prolongs the service life.

Description

technical field [0001] The invention relates to a double-acting fork type pneumatic actuator, which belongs to the field of valves. Background technique [0002] Fork-type pneumatic actuator is a stroke-piston actuator, which is suitable for on-off cut-off or metering control of valves with 90° rotation angle (such as ball valves, butterfly valves, and plug valves). The transmission mechanism of the pneumatic actuator has two types: the rack and pinion type and the fork type. The fork type pneumatic actuator drives the fork to rotate through the linear motion of the piston rod, and then drives the main shaft or valve stem to rotate. The shift fork pneumatic actuator in the prior art mainly includes a cylinder part and a shift fork transmission part. The cylinder part includes a cylinder, a cylinder head, a piston and a piston rod. The shift fork assembly is arranged in the box body, the main shaft and the box body are connected in rotation, and the shift fork assembly is co...

Claims

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Application Information

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IPC IPC(8): F16K31/122F16K31/44F16J9/00
CPCF16K31/122F16J9/00F16K31/44
Inventor 干海娟
Owner 苏州博合雅工程材料科技有限公司