Integrated push rod seal assembly

A sealing component and integrated technology, applied in the field of industrial regulating valve actuator sealing components, can solve the problems of difficult O-ring replacement, valve failure, easy aging of fluorine rubber, etc., to achieve safe and reliable sealing structure, reduced accident rate, The effect of improved adjustment accuracy

Inactive Publication Date: 2010-10-20
WUXI SMART AUTO CONTROL ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing technology, the seal of the push rod of the existing pneumatic valve actuator generally adopts the fluorine rubber guide and the O-ring built-in sealing structure. error occured
Even lead to the outage of the whole set of equipment, causing huge economic losses

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] Below the present invention will be further described in conjunction with the embodiment in the accompanying drawing:

[0013] Such as figure 2 As shown, the integrated push rod seal assembly is composed of inner O-ring 1, sliding bearing 2, cylinder head 3, outer O-ring 4, shaft sleeve 5, dust-proof ring 6, screw 7, pressure plate 8 and push rod 9 components .

[0014] The inner O-ring 1, sliding bearing 2, and outer O-ring 4 of the sealing assembly are embedded in the shaft sleeve 5 in an integrated manner, assembled into the cylinder head 3 as a whole, and the dustproof ring 6 is installed, and the shaft is pressed by the pressure plate 8 Set 5, use screw 7 to fix the pressure plate 8 on the cylinder head 3,

[0015] The sealing system of the sealing assembly is assembled by three sealing structures of an inner O-ring 1 , an outer O-ring 4 and a dustproof ring 6 . The inner O-ring 1 is installed between the shaft sleeve 5 and the push rod 9, which is the first se...

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PUM

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Abstract

The invention relates to an integrated push rod seal assembly, in particular to an industrial control valve actuator seal assembly. The seal assembly comprises an inner O shape ring, a sliding bearing, a cylinder cover, an outer O shape ring, a shaft sleeve, a dust ring, a bolt, a pressure plate and a push rod; wherein the inner O shape ring, the sliding bearing and the outer O shape ring are embedded into the shaft sleeve in an integrating way, the inner O shape ring is arranged between the shaft sleeve and the push rod, thus forming a first sealing structure; the outer O shape ring is arranged between the cylinder cover and the shaft sleeve, thus forming a second sealing structure; the dust ring is arranged between the bottom of the shaft sleeve and the push rod, thus forming a third sealing structure; and the pressure plate compactly compresses the shaft sleeve, and the bolt is used for fixing the pressure plate on the cylinder cover. The invention is provided with a secure sealing guide structure, thus being convenient for maintenance; unstable guiding and air leakage phenomena of valve actuator in operation process can be effectively reduced, the performance of valve actuator can be ensured to be stable, equipment is ensured to operate safely and smoothly, and production efficiency is improved.

Description

technical field [0001] The invention relates to an integrated push rod sealing assembly, in particular to an industrial regulating valve actuator sealing assembly. Background technique [0002] With the development of economy, the level of industrial automation control is constantly improving, so the requirements for the reliability of regulating valves in process control are also constantly improving. This also puts forward higher requirements for valve actuators. In the existing technology, the seal of the push rod of the existing pneumatic valve actuator generally adopts fluororubber guide and O-ring built-in sealing structure. error occured. Even lead to the outage of the entire set of equipment, resulting in huge economic losses. Contents of the invention [0003] The purpose of the present invention is to overcome the above disadvantages, thereby providing a valve actuator sealing assembly with a reliable sealing and guiding structure, which is convenient for main...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K41/02
Inventor 陈彦杨密龙徐骏
Owner WUXI SMART AUTO CONTROL ENG CO LTD
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