CN1081771C - 用于液压介质的电磁阀 - Google Patents

用于液压介质的电磁阀 Download PDF

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Publication number
CN1081771C
CN1081771C CN98106315A CN98106315A CN1081771C CN 1081771 C CN1081771 C CN 1081771C CN 98106315 A CN98106315 A CN 98106315A CN 98106315 A CN98106315 A CN 98106315A CN 1081771 C CN1081771 C CN 1081771C
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Prior art keywords
valve
guiding valve
guiding
electromagnet
solenoid valve
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Expired - Fee Related
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CN98106315A
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CN1195750A (zh
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A·F·万德尔
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Wartsila NSD Schweiz AG
Winterthur Gas and Diesel AG
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Winterthur Gas and Diesel AG
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    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
    • F16K31/0679—Electromagnet aspects, e.g. electric supply therefor with more than one energising coil
    • 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
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/044—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0603—Multiple-way valves
    • F16K31/061—Sliding valves
    • F16K31/0613—Sliding valves with cylindrical slides
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86622—Motor-operated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/8667—Reciprocating valve
    • Y10T137/86694—Piston valve
    • Y10T137/8671—With annular passage [e.g., spool]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • Magnetically Actuated Valves (AREA)
  • Valve Device For Special Equipments (AREA)
  • Lubricants (AREA)

Abstract

一种电磁阀包括一个阀壳体(4)，一个滑阀(6)，两个电磁铁(2)。滑阀(6)可位移地布置在该壳体的一个通孔(13)中。该通孔和滑阀设置有一个坚硬镀层，以便增加转换动作的次数。

Description

用于液压介质的电磁阀
技术领域
本发明涉及用于液压介质的电磁阀，它包括一个阀壳体，一个滑阀和两个电磁铁，每当电磁铁被激磁时滑阀可以移动而当激磁电压被切断时滑阀可以由剩磁牢牢地固持住。
背景技术
这种阀是已知的，并且含有一个壳体和一个可位移地布置在该壳体中的阀塞或者滑阀。电磁铁在任何情况下都与其相连接的一个衔铁件以这样的方式设置在滑阀的每个端面上，使得当电磁铁被激励时阀体在每种情况下都可以位移。采用这种阀无疑转换时间会很短，但是磨损，特别是在控制边缘处的磨损将是非常显著的，因此在经过比较少量的转换动作之后，滑阀必须予以更换。
发明内容
因此，本发明的目的是改善电磁阀。
根据本发明的一种用于液压介质的电磁阀，它包括一个阀壳体，一个滑阀和两个电磁铁，每当电磁铁被激磁时滑阀可以移动而当激磁电压被切断时滑阀可以由剩磁牢牢地固持住，其特征在于，在壳体中的通孔和滑阀设置有一个坚硬的镀层。
本发明的优点在于，滑动特性和寿命通过坚硬镀层得到了改善，并且由于涡流损失最小，非常短的转换脉冲足以致动滑阀。
附图说明
现在参照附图描述本发明。其中：
图1是本发明阀的示范性实施例的剖视图；
图2是图1中放大尺寸的细节“A”；
图3是图1中放大尺寸的细节“B”；
图4是滑阀一个端部的剖视图；
图5是图4中箭头C方向上的视图。
具体实施方式
该阀主要包括一个阀部件1和两个驱动部件2，该两个驱动部件形成为电磁铁并借助螺钉3安装在阀部件1上。
阀部件1包括一个带有一个沿着缸筒轴线的通孔5的壳体4和一个布置得可以在该通孔中来回移动的滑阀或者阀塞6。壳体4由磁性材料组成。从图1可以看出，阀壳体4的长度小于滑阀6的外径的2.5倍。两个环槽7在壳体4中形成并且形成得以这样的方式在通孔5中平行延伸，使得处于相邻位置边缘的每一个都形成一个控制边缘8(图2)。另外，其每一个都通向环槽7的一个供应通道11和一个返回通道12以及一个通向通孔5的用户通道13形成在该壳体中。环形切口设置在壳体的端面上用于接纳密封环14。四个螺纹孔15形成在壳体4中，以便将驱动部件安装在壳体上。倒角16在通孔两端的每一端处形成在壳体1上(图3)。
滑阀6是圆柱形的并且具有一个这样的环形槽17，使得产生一个环形腔，而环形腔的边缘在滑阀6上形成控制边缘18(见图2)。滑阀6形成为一个中空缸筒并且具有与返回通道12相通的径向孔。环形槽17这样形成在圆周上，使得产生一个环形腔，而环形腔的边缘在滑阀6上形成控制边缘18(见图2)。在滑阀6的端面上有四个自由伸出的支承表面19，支承表面19与其余端面的间隔近似等于0.05毫米。滑阀由可磁化的材料组成。
壳体4中的通孔5和滑阀6，特别是控制边缘8，18设置有一个坚硬镀层，该镀层由例如碳化钨或者氮化钛组成。
每个电磁铁包括一个线圈21，一个线圈直接缠绕在其上的线圈体22和一个衔铁件23。衔铁件23形成为直角平行六面体并且由可磁化的材料组成。一个环形切口在衔铁件23上从一个端面开始这样形成，使得一个圆柱形突体25可以安置在中央。一个用于接纳密封环26的凹槽形成在该突体上。沟槽27形成在凹槽的底部。另外，该突体25的自由端有一个锥形部分28。线圈体22和线圈21布置在环形切口中。一个圆筒形切口29形成在衔铁件23的另一个端面上。用于线圈连接导线的通孔30从该切口处开始形成并且伸过线圈体22的凸缘部分31。
在每种情况下都要激励电磁铁，以便致动滑阀。滑阀6借助磁场被吸引到衔铁件23上，直至自由凸起部分19的各个表面与衔铁件的端面相接触为止。为了确保吸引滑阀3，聚集在滑阀3和衔铁件23之间的滑阀空腔中的压力介质，例如油，必须予以排出。因此阀的作用被改善，并可达到较短的转换时间。如果激磁电压被切断，滑阀将由剩磁牢牢地固持住。激磁电流在线圈体中产生涡流。为了使涡流损失最小，线圈体可由导电率小于3.00·105(Ωcm)-1的材料组成，最好是线圈体由具有0.23·105(Ωcm)-1低导电率的钛组成。
电磁阀包括一个阀壳体4，一个滑阀6和两个电磁铁2。滑阀6可位移地布置在壳体中的一个通孔13中。通孔和滑阀设置有一个坚硬镀层，以便增加转换动作的次数。

Claims (5)

1.一种用于液压介质的电磁阀，它包括一个阀壳体，一个滑阀和两个电磁铁，每当电磁铁被激磁时滑阀可以移动而当激磁电压被切断时滑阀可以由剩磁牢牢地固持住，其特征在于，在壳体(4)中的通孔(13)和滑阀(6)设置有一个坚硬的镀层。
2.如权利要求1所述的电磁阀，其特征在于，它具有至少两个自由凸起支承部分(19)，该支承部分形成在滑阀(6)的端面上并且每个都可以被带至与电磁铁有效接触。
3.如权利要求1或2所述的电磁阀，其特征在于，阀壳体(4)的长度小于滑阀(6)的外径的2.5倍。
4.如权利要求1-3中任何一项所述的电磁阀，其特征在于，坚硬镀层由氮化钛，碳化钨或者类似物组成。
5.如权利要求1-4中任何一项所述的电磁阀，其特征在于，用于电磁线圈(21)的线圈体(22)由导电率小于3.00·105(Ωcm)-1的材料组成。
CN98106315A 1997-04-08 1998-04-01 用于液压介质的电磁阀 Expired - Fee Related CN1081771C (zh)

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Application Number Priority Date Filing Date Title
EP97810203.6 1997-04-08
EP97810203A EP0870958A1 (de) 1997-04-08 1997-04-08 Elektromagnetisches Ventil für hydraulische Medien

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CN1195750A CN1195750A (zh) 1998-10-14
CN1081771C true CN1081771C (zh) 2002-03-27

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US (1) US5937904A (zh)
EP (2) EP0870958A1 (zh)
JP (1) JPH10281326A (zh)
CN (1) CN1081771C (zh)
DE (1) DE59711830D1 (zh)
DK (1) DK0870959T3 (zh)
NO (1) NO321568B1 (zh)
TW (1) TW581171U (zh)

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CN104930243B (zh) * 2014-03-18 2019-09-10 费希尔控制国际公司 集成式变换器

Also Published As

Publication number Publication date
DE59711830D1 (de) 2004-09-09
JPH10281326A (ja) 1998-10-23
DK0870959T3 (da) 2004-10-04
EP0870959B1 (de) 2004-08-04
CN1195750A (zh) 1998-10-14
NO981600D0 (no) 1998-04-07
EP0870958A1 (de) 1998-10-14
NO981600L (no) 1998-10-09
EP0870959A3 (de) 1998-12-02
EP0870959A2 (de) 1998-10-14
US5937904A (en) 1999-08-17
NO321568B1 (no) 2006-06-06
TW581171U (en) 2004-03-21

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