Device for preventing valve rod of butterfly valve from being blown out

The invention discloses a valve rod blow-out prevention device for a butterfly valve, which comprises a valve body, the top end of the valve body is connected with an end cover, a valve rod is rotatably connected in the valve body, and a rolling assembly is arranged in the valve body; the valve rod...

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Hauptverfasser: TIAN JIAYI, ZENG LIQUAN, JIANG MINGHUA, HUANG HAOYU, YIN JIANG, LIU WEIJIE, HE CHUAN, XIA YU, YE CHENG, XU LAIWU, BAI BENQI
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creator TIAN JIAYI
ZENG LIQUAN
JIANG MINGHUA
HUANG HAOYU
YIN JIANG
LIU WEIJIE
HE CHUAN
XIA YU
YE CHENG
XU LAIWU
BAI BENQI
description The invention discloses a valve rod blow-out prevention device for a butterfly valve, which comprises a valve body, the top end of the valve body is connected with an end cover, a valve rod is rotatably connected in the valve body, and a rolling assembly is arranged in the valve body; the valve rod is connected with a limiting assembly, and the limiting assembly is in transmission connection with the rolling assembly. All sliding friction in a traditional structure is completely converted into rolling friction, the abrasion resistance of parts is effectively enhanced, the service life of the valve is greatly prolonged, and the beneficial effects that reliability is improved, safety is guaranteed, and the service life is prolonged are achieved. 本发明公开了一种用于蝶阀防阀杆吹出装置,包括阀体,其顶端连接有端盖,所述阀体内可转动连接有阀杆,所述阀体内设置有滚动组件;所述阀杆上连接有限位组件,且所述限位组件与所述滚动组件传动连接。本发明,将传统结构中所有的滑动摩擦全部转换为滚动摩擦,有效地增强了部件的耐磨性,大幅度延长了阀门使用寿命,具有提升可靠性、保障安全性、延长使用寿命的有益效果。
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subjects ACTUATING-FLOATS
BLASTING
COCKS
DEVICES FOR VENTING OR AERATING
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
TAPS
THERMAL INSULATION IN GENERAL
VALVES
WEAPONS
title Device for preventing valve rod of butterfly valve from being blown out
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