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Single-action shifting fork type pneumatic actuator

A pneumatic actuator, single-acting technology, applied in the direction of engine components, valve operation/release devices, valve details, etc., can solve the problems of inconvenient operation, laborious manual adjustment, etc., to prolong service life, reduce radial wear, reduce Effect of cylinder power consumption

Inactive Publication Date: 2016-01-13
罗普阀业(宜兴)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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  • Single-action shifting fork type pneumatic actuator
  • Single-action shifting fork type pneumatic actuator
  • Single-action shifting fork type pneumatic actuator

Examples

Experimental program
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Effect test

Embodiment 1

[0013] Example 1: A single-acting shift fork type pneumatic actuator, including a left cylinder 1, a middle shift fork cylinder 2 and a right spring cylinder 3, which are connected in a sealed manner. The cylinder 1 includes a piston 1.1, and the center of the piston 1.1 is provided Piston rod 1.2, two sides of the piston rod 1.2 are provided with guide posts 1.3, the left end of the piston rod 1.2 is consolidated with the center of the piston 1.1, the right end extends into the fork cylinder 2 to connect to one end of the movable block 2.1, and the other end of the movable block 2.1 is connected to the spring rod 3.1 At the left end, the right end of the spring rod 3.1 extends into the spring cylinder 3 to connect with a spring seat 3.2 that can slide back and forth along the inner wall of the spring cylinder 3. One end of the spring 3.3 is sleeved on the spring seat 3.2 and the other end is pressed against the left end of the spring cylinder 3. The block 2.1 is provided with a...

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PUM

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Abstract

The invention discloses a single-action shifting fork type pneumatic actuator. The single-action shifting fork type pneumatic actuator comprises a left side air cylinder, a middle shifting fork cylinder body and a right side spring barrel body, which are connected in a sealing mode, wherein the air cylinder internally comprises a piston; a piston rod is arranged on the center of the piston; two sides of the piston rod are provided with guide posts; the left end of the piston rod is fixedly connected with the center of the piston; the right end of the piston rod extends into the shifting fork cylinder body and is connected with one end of a movable block; the other end of the movable block is connected with the left end of a spring drawbar; the right end of the spring drawbar extends into the spring barrel body and is connected with a spring base which slides along the inner wall of the spring barrel body in a reciprocating mode; one end of the spring is arranged on the spring base in a sleeving mode; the other end of the spring is resisted against the left end of the spring barrel body; the movable block is axially provided with a bearing hole; an oilless self-lubricating bearing is arranged in the bearing hole; the oilless self-lubricating bearing is arranged in a guide rod in the shifting fork cylinder body in the sleeving mode; a shifting fork connecting hole is formed in the movable block; the connecting hole is internally provided with a connecting rod; and the connecting rod is connected with a connecting slide slot in a shifting fork below the movable block. The single-action shifting fork type pneumatic actuator is good in sealing performance, leakage-resistant and good in guiding property, and abrasion generated by radial deviation is effectively prevented.

Description

Technical field [0001] The invention belongs to the field of valves, and specifically relates to a single-acting fork type pneumatic actuator for controlling valves. Background technique [0002] The transmission mechanism of the pneumatic actuator has two types: rack and pinion type and shift fork type. The shift fork type pneumatic actuator drives the shift fork to rotate through the linear movement of the piston rod, and then drives the main shaft or valve stem to rotate. The shift fork type pneumatic actuator in the prior art mainly includes a cylinder component and a shift fork transmission component. The cylinder component includes a cylinder, a cylinder head, a piston and a piston rod. The shift fork transmission component includes a shift fork assembly, a main shaft and a box body, and a main shaft and The shift fork assembly is arranged in the box body, the main shaft and the box body are rotationally connected, and the shift fork assembly is drivingly connected with the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/122F16K31/44
CPCF16K31/1221F16K31/44
Inventor 于志华窦亚平
Owner 罗普阀业(宜兴)有限公司
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