CN106051242A - 一种液压马达用双作用溢流阀 - Google Patents

一种液压马达用双作用溢流阀 Download PDF

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CN106051242A
CN106051242A CN201610585858.8A CN201610585858A CN106051242A CN 106051242 A CN106051242 A CN 106051242A CN 201610585858 A CN201610585858 A CN 201610585858A CN 106051242 A CN106051242 A CN 106051242A
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valve seat
spool
valve
pressure
oilhole
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CN106051242B (zh
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王金铂
邵作顺
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Qingdao Likechuan Hydraulic Co ltd
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CHINA QINGDAO LKC HYDRAULIC MACHINERY Co Ltd
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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
    • 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
    • F16K17/0446—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 an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces
    • F16K17/046—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 an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces the valve being of the gate valve type or the sliding valve type
    • 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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/008—Reduction of noise or vibration
    • 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
    • F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure
    • 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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Servomotors (AREA)

Abstract

本发明公开了一种液压马达用双作用溢流阀，包括阀座，所述阀座的内部设有可以来回滑动的阀芯，阀座的一端设有一将阀芯压在阀座内的弹性压力组件，所述阀座上设有油孔Ⅰ和油孔Ⅱ，所述阀芯的下端面与阀座内壁形成一油腔Ⅰ，油腔Ⅰ通过一设于阀芯内的油管与油孔Ⅰ连通；所述阀芯上设有一泄压段，所述泄压段与阀座形成油腔Ⅱ，油腔Ⅱ与油孔Ⅱ连通，当阀芯在阀座内移动时泄压段能连通油孔Ⅰ和油孔Ⅱ，所述油腔Ⅱ的上部阀芯上设一承压面，承压面和阀芯下端面的面积相等。本发明的双作用溢流阀实现体积和安装空间的最小化，节约安装空间和制造材料成本，为其他部件的安装提供了更大的选择空间。

Description

一种液压马达用双作用溢流阀
技术领域
本发明涉及液压设备零部件技术领域，特别涉及一种液压马达用双作用溢流阀。
背景技术
斜盘式轴向柱塞马达是讲液压能转化为机械能的装置，在工程机械等设备上主要完成扭矩的输出，实现对工程机械设备的行走驱动，在整个过程中，马达产生的液压冲击，通过溢流阀将压力脉冲直接衰减。在小型工程机械设备的设计制造时通常各部件的安装都比较紧凑，尤其是行走机构，现有的溢流阀不能满足有限的安装空间要求。
发明内容
本发明为了弥补现有技术的不足，提供了一种结构合理，占用安装空间小的液压马达用双作用溢流阀。
为实现上述目的，本发明采用下述技术方案：一种液压马达用双作用溢流阀，包括阀座，所述阀座的内部设有可以来回滑动的阀芯，阀座的一端设有一将阀芯压在阀座内的弹性压力组件，所述阀座上设有油孔Ⅰ和油孔Ⅱ，所述阀芯的下端面与阀座内壁形成一油腔Ⅰ，油腔Ⅰ通过一设于阀芯内的油管与油孔Ⅰ连通；所述阀芯上设有一泄压段，所述泄压段与阀座形成油腔Ⅱ，油腔Ⅱ与油孔Ⅱ连通，当阀芯在阀座内移动时泄压段能连通油孔Ⅰ和油孔Ⅱ，所述油腔Ⅱ的上部阀芯上设一承压面，承压面和阀芯下端面的面积相等。
所述弹性压力组件包括一弹簧组、螺堵和弹簧座，弹簧组被设于阀座端部的螺堵压在阀座内，弹簧组通过弹簧座压在阀芯的上端面。
所述承压面面积等于阀芯下端面的面积，且为阀芯上端面面积的一半。采用此方案可以使油孔Ⅰ和油孔Ⅱ处预设的泄压压力相等。
所述阀芯的泄压段的下部设有一定位突起。
使用时，当油孔Ⅰ处油压到达设定值时，油腔Ⅰ内压力推动阀芯克服弹簧组的压力移动，使油孔Ⅰ与油孔Ⅱ连通，使油孔Ⅰ处的高压油通过油孔Ⅱ回流至马达回油腔实现泄压，泄压完成后弹簧组将阀芯压回原位；当油孔Ⅱ处油压到达设定值时，油腔Ⅱ中的压力推动阀芯克服弹簧组的压力移动，使油孔Ⅰ与油孔Ⅱ连通，油孔Ⅱ处的液压油通过油孔Ⅰ回流至马达回油腔实现泄压。
本发明的有益效果是：本发明的双作用溢流阀实现体积和安装空间的最小化，节约安装空间和制造材料成本，为其他部件的安装提供了更大的选择空间。
附图说明
图1是本发明结构示意图；
图2是阀芯的结构示意图。
其中1.阀座，2.阀芯，3.油孔Ⅰ，4.油孔Ⅱ，5.油腔Ⅰ，6.油腔Ⅱ，7、螺堵，8、弹簧组，9、弹簧座，10、泄压段，11、承压面,12、定位突起。
具体实施方式
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
如图1和图2所示的一种液压马达用双作用溢流阀，包括阀座1，所述阀座1的内部设有可以来回滑动的阀芯2，阀座1的一端设有一将阀芯2压在阀座1内的弹性压力组件，弹性压力组件包括一弹簧组8、螺堵7和弹簧座9，弹簧组8被设于阀座1端部的螺堵7压在阀座1内，弹簧组8通过弹簧座9压在阀芯2的上端面，阀座1上设有油孔Ⅰ3和油孔Ⅱ4，阀芯2的下端面与阀座1内壁形成一油腔Ⅰ5，油腔Ⅰ5通过一设于阀芯2内的油管与油孔Ⅰ3连通；所述阀芯2上设有一泄压段10，泄压段10与阀座2形成油腔Ⅱ6，油腔Ⅱ6与油孔Ⅱ4连通，当阀芯2在阀座1内移动时泄压段10能连通油孔Ⅰ3和油孔Ⅱ4，油腔Ⅱ4的上部阀芯2上设一承压面11，承压面11面积等于阀芯2下端面的面积，且为阀芯1上端面面积的一半，阀芯2的泄压段10的下部设有一定位突起12。
上述虽然结合附图对本发明的具体实施方式进行了描述，但并非对本发明保护范围的限制，所属领域技术人员应该明白，在本发明的技术方案的基础上，本领域技术人员不需要付出创造性劳动即可做出的各种修改或变形仍在本发明的保护范围以内。

Claims (4)

1.一种液压马达用双作用溢流阀，其特征在于：包括阀座，所述阀座的内部设有可以来回滑动的阀芯，阀座的一端设有一将阀芯压在阀座内的弹性压力组件，所述阀座上设有油孔Ⅰ和油孔Ⅱ，所述阀芯的下端面与阀座内壁形成一油腔Ⅰ，油腔Ⅰ通过一设于阀芯内的油管与油孔Ⅰ连通；所述阀芯上设有一泄压段，所述泄压段与阀座形成油腔Ⅱ，油腔Ⅱ与油孔Ⅱ连通，当阀芯在阀座内移动时泄压段能连通油孔Ⅰ和油孔Ⅱ，所述油腔Ⅱ的上部阀芯上设一承压面，承压面和阀芯下端面的面积相等。
2.如权利要求1所述的基于静压支承的滑靴副，其特征在于：所述弹性压力组件包括一弹簧组、螺堵和弹簧座，弹簧组被设于阀座端部的螺堵压在阀座内，弹簧组通过弹簧座压在阀芯的上端面。
3.如权利要求1所述的基于静压支承的滑靴副，其特征在于：所述承压面面积等于阀芯下端面的面积，且为阀芯上端面面积的一半。
4.如权利要求1所述的基于静压支承的滑靴副，其特征在于：所述阀芯的泄压段的下部设有一定位突起。
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108730270A (zh) * 2018-05-03 2018-11-02 中国航空工业集团公司西安飞机设计研究所 一种防止燃油侵入机载液压***的装置
CN111306322A (zh) * 2020-03-03 2020-06-19 安徽工业大学 一种射流阀

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4036533A (en) * 1975-12-05 1977-07-19 Svenska Aktiebolaget Bromsregulator Force limiting device for a parking brake actuator arranged in series with a service brake actuator
CN102644777A (zh) * 2012-03-28 2012-08-22 特劳克森特里克专利应用有限公司 旁通阀
CN103291986A (zh) * 2013-06-26 2013-09-11 无锡商业职业技术学院 直动式减压阀
CN103851241A (zh) * 2012-12-07 2014-06-11 大连乾宝铸铁有限公司 直动式溢流阀
CN203926197U (zh) * 2014-06-19 2014-11-05 徐州徐工液压件有限公司 一种用于负载传感抗液压冲击溢流阀
CN205938013U (zh) * 2016-07-22 2017-02-08 青岛力克川液压机械有限公司 一种液压马达用双作用溢流阀

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4036533A (en) * 1975-12-05 1977-07-19 Svenska Aktiebolaget Bromsregulator Force limiting device for a parking brake actuator arranged in series with a service brake actuator
CN102644777A (zh) * 2012-03-28 2012-08-22 特劳克森特里克专利应用有限公司 旁通阀
CN103851241A (zh) * 2012-12-07 2014-06-11 大连乾宝铸铁有限公司 直动式溢流阀
CN103291986A (zh) * 2013-06-26 2013-09-11 无锡商业职业技术学院 直动式减压阀
CN203926197U (zh) * 2014-06-19 2014-11-05 徐州徐工液压件有限公司 一种用于负载传感抗液压冲击溢流阀
CN205938013U (zh) * 2016-07-22 2017-02-08 青岛力克川液压机械有限公司 一种液压马达用双作用溢流阀

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108730270A (zh) * 2018-05-03 2018-11-02 中国航空工业集团公司西安飞机设计研究所 一种防止燃油侵入机载液压***的装置
CN111306322A (zh) * 2020-03-03 2020-06-19 安徽工业大学 一种射流阀

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