CN1877174A - 阀芯和阀门装置 - Google Patents

阀芯和阀门装置 Download PDF

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Publication number
CN1877174A
CN1877174A CNA2006100833881A CN200610083388A CN1877174A CN 1877174 A CN1877174 A CN 1877174A CN A2006100833881 A CNA2006100833881 A CN A2006100833881A CN 200610083388 A CN200610083388 A CN 200610083388A CN 1877174 A CN1877174 A CN 1877174A
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piston
joint
valve
pillar
safety check
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CN1877174B (zh
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马丁·路透
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Marco Systemanalyse und Entwicklung GmbH
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Marco Systemanalyse und Entwicklung GmbH
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/50—Component parts or details of props
    • E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
    • E21D15/512—Arrangement of valves
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/003—Systems with load-holding valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/01—Locking-valves or other detent i.e. load-holding devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1447—Pistons; Piston to piston rod assemblies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
    • F15B15/222—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having a piston with a piston extension or piston recess which throttles the main fluid outlet as the piston approaches its end position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
    • F16K15/182—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism
    • F16K15/1826—Check valves which can be actuated by a pilot valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/0433—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with vibration preventing means

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mining & Mineral Resources (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Safety Valves (AREA)
  • Check Valves (AREA)

Abstract

一种用于支撑桁架的支柱的可松开止回阀用的阀芯，具有芯外壳，在该芯外壳中布置有阀门活塞、控制活塞和活塞弹簧。在该芯外壳中提供有一通进活塞孔内的端口，用来为控制活塞施加压力。该端口与活塞孔的底部间隔开，并且在控制活塞和活塞孔之间的该端口的区域内提供有环形间隙。

Description

阀芯和阀门装置
技术领域
本发明涉及地下采矿业中用于支撑桁架的支柱(ram)的可松开(unlockable)止回阀用的阀芯(valve cartridge)。
背景技术
用于支柱的可松开止回阀需要不同的尺寸。迄今为止，为了这个目的也已经生产了不同尺寸的阀门。然而，由于相关联阀体(valve block)内的阀门具有最大为20的DN，因此该支撑桁架(防护装置)内的接头和软管接头也制成具有最大为20的DN。
发明内容
本发明的目的在于提供一种不容易振动的可松开止回阀。
这一目的由权利要求1的特征实现。各有益实施方式则通过各从属权利要求表征。
根据本发明的另一方面，涉及一种根据权利要求5前序的用于支撑桁架的支柱的阀门装置。这种类型的阀门装置通常为已知的。可松开止回阀必须具有适合高压力和/或大流量的相对大的结构。然而，为了在例如：由于岩层突裂而导致有非常高的压力施加到支柱上的这种情况下，可以通过简单的方式增加通流，根据本发明，采取将另一可松开止回阀连接到支柱的活塞表面接头上，该可松开止回阀的控制管线被连接到支柱的环面接头上，并且该可松开止回阀的回路被连接到阀体出口处的回流管线上。由于第二可松开止回阀的出口不受阻碍于阀体直径限制的这种布置，使得该第二可松开止回阀充当纯卸压阀。根据本发明，优选该第二止回阀的出口能够直接流入到回流管线中的例子。
附图说明
下面将参照有益实施方式和附图纯粹通过例子的方式描述本发明。示出的有：
图1为阀芯的截面图；
图2为用于支撑桁架的支柱的阀门装置；以及
图3为支柱阀的截面图。
具体实施方式
图1示出用于支撑桁架的支柱的可松开止回阀的阀芯的截面图。该阀芯包括由两个外壳部分72和74组成的芯外壳，这两个外壳部分通过螺纹75拧在一起。该芯外壳内装有阀门活塞78，并且该阀门活塞78受到由活塞弹簧84施加的力。
该阀门活塞78的内部是中空的，并且该阀门活塞78具有流动孔52，该孔能够使液压介质在接头A和相关联支柱的活塞表面接头54之间流动，该阀门活塞78的环形法兰56在图1所示的位置密封接触密封座环58。
图1中阀门活塞78的右手一侧直径小于该阀门活塞其余部分的直径，并且被容纳在横截面为U形的控制活塞76内，而且具有基于非常小的环形间隙的松配合。控制活塞76被容纳在活塞孔60内，并且有一端口50开通在该活塞孔中。液压介质通过该端口50供应，该端口50打开该止回阀并与支柱的环面接头以及相关联阀体的B接头相通。
如图1所示，端口50被提供成与活塞孔60的底部62间隔开，并且通进与活塞孔的底部间隔开的活塞孔的外表面(iacket surface)。在端口50的区域内，在控制活塞76的***和活塞孔60之间还提供有浅的环形间隙64，且该环形间隙64由在图1中控制活塞的右手一侧的***上提供的凹进形成。
此外，在阀门活塞78和芯外壳之间的密封座环的区域内还提供薄的环形间隙80，该环形间隙80连同端口50的设置形成该阀门的阻尼开口。
如果端口50被施加压力，液压介质会首先经由环形间隙64进入已经产生阻尼的活塞孔60的区域内。如果控制活塞76和阀门活塞78随后运动到左边，该阀门活塞和芯外壳之间的另一环形间隙80同样会形成阻尼开口。为了避免超定，控制活塞和阀门活塞以松配合相互连接。
图2示出一用于支撑桁架(未示出)的支柱10的阀门装置。在这里，提供第一可松开止回阀12，该第一可松开止回阀12一方面连接到支柱10的活塞表面接头A’上，并且另一方面，它的A接头被连接到阀体20的A接头上。附图标记13表示一减压阀。压力传感器由附图标记15表示。还可以看出，该可松开止回阀的控制接头被连接到支柱10的环面接头B’和阀体20的B接头上。
此外，根据本发明提供第二可松开止回阀14，该第二可松开止回阀14的控制接头与支柱10的环面接头B’和阀体20的B接头相通。该第二可松开止回阀14一方面连接到支柱10的活塞表面接头A’上。阀门14的回路R未连接到阀体20上，而是连接到阀体20出口处的回路R上，即直接连接到回流管线上。这样，当接头B’受到更大压力时，能够从支柱10流出更多的量。尽管阀门12和14的设计相同，但如果，例如发生岩石突裂，可以释放两倍的流量。
图3示出如图2中用附图标记21示意性示出的支柱阀的截面图。两个如图1所示的阀芯被容纳在一外壳模块30中。附图标记B表示用于“下支柱”功能的接头。它下面的附图标记A表示用于“行支柱”功能的接头。这两个接头通过角度适配器实现，以便液压软管能够随支柱倾角的变化而运动。外壳30通过螺钉法兰连接到支柱上。支柱环面的接头由B’表示，并且支柱的活塞表面的接头由A’表示。附图标记32表示连接通道。压力由压力传感器15在活塞表面进行测量。由岩石载荷引起的压力由限压阀13进行限制。

Claims (5)

1、一种用于支撑桁架的支柱的可松开止回阀用的阀芯，包括芯外壳(72，74)，在该芯外壳内提供有阀门活塞(78)和控制活塞(76)以及活塞弹簧(84)，并且在该芯外壳中提供有通进活塞孔(60)内的端口(50)，用来为控制活塞(76)施加压力，
其特征在于，该端口(50)通进与活塞孔(60)的底部(62)间隔开的活塞孔(60)的外表面；并且
在控制活塞(76)的***和活塞孔(60)之间的端口(50)的区域内，提供有环形间隙(64)。
2、如权利要求1所述的阀芯，其特征在于，所述控制活塞(76)在其一端的***具有凹进。
3、如权利要求1所述的阀芯，其特征在于，在所述阀门活塞(78)和所述芯外壳之间的密封座环(58)的区域内提供有环形间隙(80)。
4、如权利要求1所述的阀芯，其特征在于，所述阀门活塞(78)以松配合容纳在所述控制活塞(76)的孔内。
5、一种用于支撑桁架的支柱(10)的阀门装置，包括减压阀(13)和特别根据一项上述权利要求的可松开止回阀(12)，它们被连接到支柱的活塞表面接头(A’)，并且该可松开止回阀(12)的A接头被连接到阀体(20)的A接头，该可松开止回阀(12)的控制接头(B)被连接到支柱(10)的环面接头(B’)和阀体(20)的B接头，
其特征在于，另一可松开止回阀(14)与支柱的活塞表面接头(A’)相通，且它的控制接头被连接到支柱的环面接头(B’)，而且它的回路(R)被连接到阀体(20)的出口处的回流管线。
CN2006100833881A 2005-06-06 2006-06-06 阀芯和阀门装置 Expired - Fee Related CN1877174B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005025917.0 2005-06-06
DE102005025917A DE102005025917A1 (de) 2005-06-06 2005-06-06 Ventilpatrone und Ventilanordnung

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Publication Number Publication Date
CN1877174A true CN1877174A (zh) 2006-12-13
CN1877174B CN1877174B (zh) 2010-07-28

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DE (1) DE102005025917A1 (zh)
GB (3) GB2446531B (zh)
PL (1) PL379830A1 (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101922572A (zh) * 2009-06-16 2010-12-22 玛珂***分析和开发有限公司 阀芯
CN103352996A (zh) * 2013-08-14 2013-10-16 上海纳福希阀门有限公司 一种轴流式止回阀
CN101514713B (zh) * 2008-02-19 2013-11-27 玛珂***分析和开发有限公司 阀门装置

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FR2965034B1 (fr) * 2010-09-16 2014-04-18 Peugeot Citroen Automobiles Sa Dispositif hydraulique pour systeme de transmission de vehicule
CN108006010A (zh) * 2017-11-30 2018-05-08 徐州徐工液压件有限公司 机械式控制行程的顺序伸缩液压缸

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CN101514713B (zh) * 2008-02-19 2013-11-27 玛珂***分析和开发有限公司 阀门装置
CN101922572A (zh) * 2009-06-16 2010-12-22 玛珂***分析和开发有限公司 阀芯
CN103352996A (zh) * 2013-08-14 2013-10-16 上海纳福希阀门有限公司 一种轴流式止回阀

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GB2453065A (en) 2009-03-25
GB0806597D0 (en) 2008-05-14
GB2446531B (en) 2009-02-25
GB0610874D0 (en) 2006-07-12
CN1877174B (zh) 2010-07-28
GB2428276A (en) 2007-01-24
GB2453065B (en) 2010-01-13
GB2446531A (en) 2008-08-13
DE102005025917A1 (de) 2006-12-07
GB0822239D0 (en) 2009-01-14
GB2428276B (en) 2008-07-23
PL379830A1 (pl) 2006-12-11

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