CN202117692U - 一种额定流量为160L/min的安全阀 - Google Patents

一种额定流量为160L/min的安全阀 Download PDF

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Publication number
CN202117692U
CN202117692U CN2011201753772U CN201120175377U CN202117692U CN 202117692 U CN202117692 U CN 202117692U CN 2011201753772 U CN2011201753772 U CN 2011201753772U CN 201120175377 U CN201120175377 U CN 201120175377U CN 202117692 U CN202117692 U CN 202117692U
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valve body
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spool
valve casing
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洪凌海
李祥洪
李竹洋
陈建征
郑福云
陈永华
王琛
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Hydraulic Limited by Share Ltd
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FENGLONG HYDRAULIC Co Ltd
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Abstract

一种额定流量为160L/min的安全阀,它包括阀体和阀壳,阀壳上开有一排排液孔,阀体内依次套进阀芯和螺套,阀体内设置有密封圈,阀芯上设有一排卸载孔,阀芯处于阀体和螺套内,阀壳内设置有弹簧座和调压螺丝,弹簧两端分别顶住弹簧座和调压螺丝,阀体用螺纹与阀壳固定,阀芯与弹簧座接触。它性能可靠,结构紧凑,动态响应快,能保证煤矿综采工作面液压支架的支柱具有恒阻工作特性和可缩性。

Description

一种额定流量为160L/min的安全阀
技术领域
本实用新型涉及一种安全阀,尤其是指一种用于煤矿综采工作面液压支架的额定流量为160L/min的安全阀。 
背景技术
在现有技术中,安全阀的结构多种多样。如中国专利公布的“一种用于公称压力为40MPa的安全阀”(ZL 2005 2 0003856.0,公告日:2006.6.28),它包括阀壳与阀体,阀壳上开有溢流孔并由胶套封住,从阀壳右端依次装进阀座、阀芯、拧紧阀体,阀体端口设置过滤器由弹性挡圈固定,阀芯上有溢流小孔,从阀壳左端依次装进弹簧座、弹簧、拧入调压螺丝。 
安全阀是保护液压支架安全的关键部件,性能必须可靠。随着综合机械化采煤事业的发展,由于以往的安全阀结构相对复杂,动态响应慢,当顶板来冲击压力时,往往使立柱、顶梁等零部件损坏,影响井下正常采煤。 
实用新型内容
本实用新型的目的在于提供一种额定流量为160L/min的安全阀,它性能可靠,结构紧凑,动态响应快,能保证煤矿综采工作面液压支架的支柱具有恒阻工作特性和可缩性。 
为达到上述目的,本实用新型采取的解决方案是:一种额定流量为160L/min的安全阀,它包括阀体和阀壳,阀壳上开有一排排液孔,阀体内依次套进阀芯和螺套,阀体内设置有密封圈,阀芯上设有一排卸载孔,并在顶部设有凸台,阀芯处于阀体和螺套内,阀壳内设置有弹簧座和调压螺丝,弹簧两端分别顶住弹簧座和调压螺丝,阀体用螺纹与阀壳固定,阀芯与弹簧座接触。 
本实用新型产品和立柱、推移、侧护等千斤顶的下腔连接,当千斤顶工作的顶板来压使活柱下缩,当千斤顶下腔液体压力超过弹簧压力时,阀芯在压力推动下向左移动,阀芯上一排卸载孔移过密封圈,高压工作液从阀体上排液孔排出,使千斤顶下腔的工作液压力降低,当千斤顶下腔液压力小于弹簧压力时,阀芯复位恢复原来密封状态。它性能可靠,机构紧凑,动态响应快,能保证煤矿综采工作面液压支架的千斤顶具有恒阻工作特性和可缩性。 
附图说明
图1是本实施例的主视剖面结构示意图。 
图中:1、阀体,2、阀壳,3、密封圈,4、阀芯,5、弹簧座,6、弹簧,7、调压螺丝,8、螺套,9、卸载孔,10、排液孔。 
具体实施方式
下面结合实施例及其附图对本实用新型再作描述。 
参见图1,一种额定流量为160L/min的安全阀,它包括阀体1和阀壳2,阀壳上开有一排排液孔10,阀体1内依次套进阀芯4和螺套8,阀体1内设置有密封圈3,阀芯4上 设有一排卸载孔9,阀芯4处于阀体1和螺套8内,阀壳2内设置有弹簧座5和调压螺丝7,弹簧6两端分别顶住弹簧座5和调压螺丝7,阀体1用螺纹与阀壳2固定,阀芯4与弹簧座5接触。 

Claims (1)

1.一种额定流量为160L/min的安全阀,它包括阀体(1)和阀壳(2),其特征在于:阀壳上开有一排排液孔(10),阀体(1)内依次套进阀芯(4)和螺套(8),阀体(1)内设置有密封圈(3),阀芯(4)上设有一排卸载孔(9),并在顶部设有凸台,阀芯(4)处于阀体(1)和螺套(8)内,阀壳(2)内设置有弹簧座(5)和调压螺丝(7),弹簧(6)两端分别顶住弹簧座(5)和调压螺丝(7),阀体(1)用螺纹与阀壳(2)固定,阀芯(4)与弹簧座(5)接触。 
CN2011201753772U 2011-05-22 2011-05-22 一种额定流量为160L/min的安全阀 Expired - Fee Related CN202117692U (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103244723A (zh) * 2013-05-15 2013-08-14 合肥恒大江海泵业股份有限公司 矿用隔爆型单向阀

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103244723A (zh) * 2013-05-15 2013-08-14 合肥恒大江海泵业股份有限公司 矿用隔爆型单向阀
CN103244723B (zh) * 2013-05-15 2015-01-14 合肥恒大江海泵业股份有限公司 矿用隔爆型单向阀

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Owner name: FENGLONG HIGH-TECH HYDRAULIC CO., LTD.

Free format text: FORMER NAME: FENGLONG HYDRAULIC CO., LTD.

CP01 Change in the name or title of a patent holder

Address after: Nineteen Yueqing Economic Development Zone, Zhejiang, Wei Road, 325600

Patentee after: Hydraulic Limited by Share Ltd

Address before: Nineteen Yueqing Economic Development Zone, Zhejiang, Wei Road, 325600

Patentee before: Fenglong Hydraulic Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120118

Termination date: 20200522