CN114450513A - 预压阀和液压换向阀 - Google Patents

预压阀和液压换向阀 Download PDF

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Publication number
CN114450513A
CN114450513A CN201980100783.1A CN201980100783A CN114450513A CN 114450513 A CN114450513 A CN 114450513A CN 201980100783 A CN201980100783 A CN 201980100783A CN 114450513 A CN114450513 A CN 114450513A
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CN
China
Prior art keywords
valve
pin
valve seat
seat
pressure
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Granted
Application number
CN201980100783.1A
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English (en)
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CN114450513B (zh
Inventor
王伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bosch Rexroth Beijing Hydraulic Co Ltd
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Bosch Rexroth Beijing Hydraulic Co Ltd
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Publication of CN114450513A publication Critical patent/CN114450513A/zh
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Publication of CN114450513B publication Critical patent/CN114450513B/zh
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    • 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
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool 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
    • F15B13/02—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
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B13/0405—Valve members; Fluid interconnections therefor for seat valves, i.e. poppet 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
    • F15B13/02—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
    • F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
    • 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
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/024—Systems essentially incorporating special features for controlling the speed or actuating force of an output member by means of differential connection of the servomotor lines, e.g. regenerative circuits
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
    • F15B2211/3058—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve having additional valves for interconnecting the fluid chambers of a double-acting actuator, e.g. for regeneration mode or for floating mode
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/329—Directional control characterised by the type of actuation actuated by fluid pressure
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50545—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using braking valves to maintain a back pressure
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/52—Pressure control characterised by the type of actuation
    • F15B2211/528—Pressure control characterised by the type of actuation actuated by fluid pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lift Valve (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

公开了一种预压阀(100)，包括：壳体(10)，具有壳体内腔(11)，壳体内腔具有第一开口(12)和第二开口(13)；阀座(20)，被配置成可移动地接收在壳体内腔的第一开口中，且阀座的第一端(23)承受液压压力；预压阀还包括销轴(60)，销轴被配置成可移动地容纳在壳体内腔中，销轴的第一端(61)与阀座的第二端(24)被配置成相互接触、固定连接或成为一体，且销轴的第二端(62)接收来自壳体内腔的第二开口的液压压力。还公开了一种包括预压阀的液压换向阀(200)。该预压阀可降低功率损失，使液压换向阀的阀体尺寸更小，成本更低。

Description

PCT国内申请，说明书已公开。

Claims (11)

  1. PCT国内申请，权利要求书已公开。
CN201980100783.1A 2019-09-26 2019-09-26 预压阀和液压换向阀 Active CN114450513B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/108042 WO2021056306A1 (zh) 2019-09-26 2019-09-26 预压阀和液压换向阀

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CN114450513A true CN114450513A (zh) 2022-05-06
CN114450513B CN114450513B (zh) 2023-11-28

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CN201980100783.1A Active CN114450513B (zh) 2019-09-26 2019-09-26 预压阀和液压换向阀

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CN (1) CN114450513B (zh)
DE (1) DE112019007746T5 (zh)
WO (1) WO2021056306A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114109556B (zh) * 2021-11-19 2023-06-23 中国北方发动机研究所(天津) 一种用于发动机润滑系统的双向阀

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62220784A (ja) * 1986-03-20 1987-09-28 ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング 制御弁
US5339857A (en) * 1992-11-06 1994-08-23 Dresser Industries Inc. Media assisted valves
US6073904A (en) * 1997-10-02 2000-06-13 Diller; Ronald G. Latching coil valve
CN101368638A (zh) * 2007-08-15 2009-02-18 索尔-丹福斯公司 低压力升高率的先导操作的提升溢流阀
CN202790565U (zh) * 2012-09-18 2013-03-13 中联重科股份有限公司 平衡阀
CN105971956A (zh) * 2016-05-31 2016-09-28 宁波文泽机电技术开发有限公司 一种先导控制阀
CN206513918U (zh) * 2016-10-08 2017-09-22 重庆鼎辉汽车燃气系统有限公司 一种双铁芯先导式电磁阀
CN108488400A (zh) * 2018-04-28 2018-09-04 湖州职业技术学院 先导式限压预充阀结构

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62220784A (ja) * 1986-03-20 1987-09-28 ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング 制御弁
US5339857A (en) * 1992-11-06 1994-08-23 Dresser Industries Inc. Media assisted valves
US6073904A (en) * 1997-10-02 2000-06-13 Diller; Ronald G. Latching coil valve
CN101368638A (zh) * 2007-08-15 2009-02-18 索尔-丹福斯公司 低压力升高率的先导操作的提升溢流阀
CN202790565U (zh) * 2012-09-18 2013-03-13 中联重科股份有限公司 平衡阀
CN105971956A (zh) * 2016-05-31 2016-09-28 宁波文泽机电技术开发有限公司 一种先导控制阀
CN206513918U (zh) * 2016-10-08 2017-09-22 重庆鼎辉汽车燃气系统有限公司 一种双铁芯先导式电磁阀
CN108488400A (zh) * 2018-04-28 2018-09-04 湖州职业技术学院 先导式限压预充阀结构

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Publication number Publication date
WO2021056306A1 (zh) 2021-04-01
CN114450513B (zh) 2023-11-28
DE112019007746T5 (de) 2022-06-09

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