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WO2012105638A1 - Structure étanche - Google Patents

Structure étanche Download PDF

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Publication number
WO2012105638A1
WO2012105638A1 PCT/JP2012/052344 JP2012052344W WO2012105638A1 WO 2012105638 A1 WO2012105638 A1 WO 2012105638A1 JP 2012052344 W JP2012052344 W JP 2012052344W WO 2012105638 A1 WO2012105638 A1 WO 2012105638A1
Authority
WO
WIPO (PCT)
Prior art keywords
flow path
opening end
sealing structure
channel
curved surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2012/052344
Other languages
English (en)
Japanese (ja)
Inventor
修司 橋本
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.)
Arai Seisakusho Co Ltd
FCC Co Ltd
Original Assignee
Arai Seisakusho Co Ltd
FCC Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Arai Seisakusho Co Ltd, FCC Co Ltd filed Critical Arai Seisakusho Co Ltd
Publication of WO2012105638A1 publication Critical patent/WO2012105638A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/062—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces characterised by the geometry of the seat
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
    • F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
    • F16J15/106—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure homogeneous
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00—Adjustable joints; Joints allowing movement
    • F16L27/08—Adjustable joints; Joints allowing movement allowing adjustment or movement only about the axis of one pipe
    • F16L27/087—Joints with radial fluid passages

Definitions

  • the present invention relates to a sealing structure for preventing fluid leakage, which is suitable for use in a structure provided with a flow path through which a fluid flows through two curved members facing each other.
  • FIG. 9 and FIG. 10 in a structure in which a flow path 130 through which fluid flows through two members 110 and 120 facing each other on curved surfaces is provided, the flow path 130 is sandwiched between the two members 110 and 120.
  • two ring-shaped sealing members (O-rings) 140A and 140B are arranged to prevent fluid leakage between the two members 110 and 120 (for example, Japanese Patent Laid-Open No. 2006-307881). See FIG. 1 of the publication).
  • the present invention is intended to provide a sealing structure capable of preventing fluid leakage while suppressing cost.
  • the first member in which the first flow path is formed and the second member in which the second flow path is formed face each other with a curved surface, and the curved surface of the first member
  • the first opening end of the first channel is formed and the second opening end of the second channel is formed on the curved surface of the second member.
  • 1 is a sealing structure that prevents a fluid flowing through the first flow path and the second flow path from leaking between the first member and the second member. It is characterized by being arranged so as to surround the outer circumferences of both the first opening end and the second opening end while being sandwiched between one member and the second member.
  • the seal member is preferably arranged coaxially with at least one of the first opening end and the second opening end.
  • a groove for arranging the seal member is processed in at least one of the first member and the second member.
  • the seal member is formed in an elliptical or rectangular ring shape in plan view so as to allow relative movement of the first member and the second member, and moves in the longitudinal direction thereof. It is preferable to arrange them in the same direction.
  • one of the first member and the second member is a shaft member
  • the other of the first member and the second member is a housing in which the shaft member is inserted.
  • the sealing structure of the present invention it is not necessary to process a plurality of seal members and a plurality of seal member mounting grooves, and the number of parts of the seal member is reduced, and the groove processing is simplified, so that the fluid can be reliably manufactured at low cost. An excellent effect that leakage can be prevented can be obtained.
  • This embodiment is a structure in which a flow path (a first flow path and a second flow path) through which fluid flows through two members (a first member and a second member) facing each other on a curved surface is provided. It is a sealing structure that prevents leakage of fluid from between members.
  • one of the two members is a shaft member 10 and the other is a housing 20 in which the shaft member 10 is inserted.
  • These two members are components such as an engine, a transmission, a power steering, or a switching valve mounted on an automobile, for example, and lubricating oil or hydraulic oil is used as a fluid.
  • the devices and members provided with the two members as constituent elements are not limited to those described above, and the two members are not limited to the shaft member 10 or the housing 20.
  • the two members are members having at least curved surfaces, and any member may be used as long as a flow path having an inlet or an outlet is formed on each curved surface, and at least the curved surfaces are opposed to each other.
  • the fluid is not limited to lubricating oil or hydraulic oil, and may be other liquid such as water or gas.
  • the shaft member 10 is formed with a flow path (hereinafter also referred to as a first flow path) 31 having an open end (hereinafter also referred to as a first open end) 31a serving as an inlet or an outlet.
  • the housing 20 is formed with a flow path (hereinafter also referred to as a second flow path) 32 having an open end (hereinafter also referred to as a second open end) 32a serving as an inlet or an outlet.
  • the first flow path 31 is formed by combining at least a flow path extending in the axial direction and a flow path connected to the flow path and extending in the radial direction.
  • the second flow path 32 includes at least a flow path extending in the radial direction of the shaft member 10 in a state where the shaft member 10 is inserted into the housing 20.
  • a series of flow paths 30 is formed through the shaft member 10 and the housing 20 by the first flow path 31 and the second flow path 32.
  • the first opening end 31a and the second opening end 32a are formed on the curved surfaces of the shaft member 10 and the housing 20 that face each other. Furthermore, the first opening end 31a and the second opening end 32a are formed at opposing positions that are coaxial.
  • the ring-shaped seal member 40 While being sandwiched between the curved surfaces of the shaft member 10 and the housing 20, the ring-shaped seal member 40 is disposed so as to surround the outer periphery of both the first opening end 31a and the second opening end 32a. .
  • the seal member 40 is disposed coaxially with the first opening end 31a and the second opening end 32a.
  • the seal member 40 is an elastic member (for example, an O-ring) that can be elastically deformed, and as the material, for example, synthetic rubber, synthetic resin, or a flexible metal can be used.
  • the shape of the seal member 40 is not limited to a substantially rectangular cross section as shown in FIGS. 1 and 2, but a spherical cross section, a lip shape having a C-shaped cross section as shown in FIG.
  • Various shapes such as a shape in which a rib-like protrusion is provided on the sealing surface as shown in a) and (b) can be adopted.
  • the seal surface portions 40 a and 40 b expand in a direction away from each other by the internal pressure of the fluid, and the curved surfaces (wall surfaces) of the shaft member 10 and the housing 20 face each other. Adhering closely, sealing performance can be improved more.
  • a groove 11 for arranging the seal member 40 is processed into a concave shape on the outer periphery of the first opening end 31a.
  • the groove 11 has a circular shape in a top view as shown in FIG. 3 so as to match the position / shape of the first opening end 31a and the second opening end 32a and the shape of the seal member 40. Is formed.
  • the shape of the groove 11 is not limited to this.
  • sealing structure of the present invention is not limited to the above-described embodiment, and it is needless to say that various changes can be made without departing from the scope of the present invention.
  • the groove 11 is processed into a circular shape when viewed from the top, but is, for example, elliptical or rectangular when viewed from the top, or a circular shape (circular or elliptical as shown in FIG. 6). Shape) or a rectangular ring shape.
  • the open end 31 a of the flow path 31 on the shaft member 10 side and the open end 32 a of the flow path 32 on the housing 20 side can be brought close to each other. This is preferable in that the gap between the shaft member 10 and the housing 20 can be further reduced.
  • the grooves 11 and 11 ′ are processed on the shaft member 10 side.
  • the grooves 21 may be processed on the housing 20 side. That is, the seal member 40 may be grooved and attached to one of the shaft member 10 and the housing 20, or may be grooved and attached to both the shaft member 10 and the housing 20. It may be.
  • the seal member 40 is disposed coaxially with both the open end 31a of the flow path 31 on the shaft member 10 side and the open end 32a of the flow path 32 on the housing 20 side. What is necessary is just to be arrange
  • shaft member 10 and the housing 20 are relatively stationary.
  • shaft member 10 and the housing 20 are relatively moved (shaft member). 10 and the housing 20 may be allowed to be misaligned).
  • the groove 21 ′ is processed on the housing 20 side.
  • the groove 21 ′ is formed on the outer periphery of the open end 32 a of the flow channel 32 in a concave shape coaxial with the open end 32 a of the flow channel 32, and in the moving direction as compared with the direction orthogonal to the moving direction of the shaft member 10. It is formed in a shape that extends long.
  • the seal member 40 ′ is formed in an elliptical or rectangular ring shape in plan view, and is fitted in the groove 21 ′ with its longitudinal direction coinciding with the moving direction.
  • the center position of the seal member 40 ′ is coaxial with the center position of the opening end 32 a of the flow path 32 on the housing 20 side, and deviates from the center position of the opening end 31 a of the flow path 31 on the shaft member 10 side. Allows to be placed.
  • the groove 21 'on the housing 20 side has a circumferential direction as compared with the axial direction so as to allow the circumferential movement (for example, rocking) of the shaft member 10. And processed into a shape extending long along the line.
  • an elliptical or rectangular ring-shaped member is used as the sealing member 40 'in plan view, and the sealing member 40' is mounted in the groove 21 'with its longitudinal direction coinciding with the circumferential direction.
  • the groove 21 'on the housing 20 side is processed into a shape extending longer in the axial direction than in the circumferential direction so as to allow the axial movement of the shaft member 10. Shall be.
  • an elliptical or rectangular ring-shaped member is used as the seal member 40 'in plan view, and the seal member 40' is mounted in the groove 21 'with its longitudinal direction coinciding with the axial direction.
  • the opening end 31 a of the flow path 31 on the shaft member 10 side and the opening end 32 a of the flow path 32 on the housing 20 side are connected to the groove 21 ′ and Even when the seal member 40 ′ is displaced in the movement direction (circumferential direction or axial direction) within the range of the movement direction length (circumferential length or axial length), the opening end 31 a of the flow path 31.
  • the open end 32a of the flow path 32 is surrounded by the seal member 40 'and communicates with the inside of the seal member 40', and the leakage of the fluid can be reliably prevented by the seal member 40 '.
  • the sealing structure of the present invention can be used for manufacturing various devices and members that require prevention of fluid leakage, such as an engine, transmission, power steering, or switching valve mounted on an automobile.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Sealing Devices (AREA)
  • Gasket Seals (AREA)

Abstract

L'invention concerne une structure dans laquelle un premier élément (10), dans lequel est formé un premier circuit (31) d'écoulement, et un deuxième élément (20), dans lequel est formé un deuxième circuit (32) d'écoulement, se font face sur une surface incurvée, une première extrémité (31a) d'ouverture du premier circuit (31) d'écoulement étant formée sur la surface incurvée du premier élément (10) et une deuxième extrémité (32a) d'ouverture du deuxième circuit (32) d'écoulement étant formée sur la surface incurvée du deuxième élément (20), un élément (40) d'étanchéité en forme d'anneau étant disposé de façon à être pris en sandwich par le premier élément (10) et le deuxième élément (20) et de façon à entourer à la fois les circonférences extérieures de la première extrémité (31a) d'ouverture et de la deuxième extrémité (32a) d'ouverture. Une structure étanche est ainsi constituée, caractérisée en ce que des fuites du fluide à partir de l'espace compris entre les deux éléments peuvent être empêchées tout en limitant les coûts dans une structure qui forme un circuit d'écoulement dans lequel un fluide circule à travers deux éléments en vis-à-vis sur une surface incurvée.
PCT/JP2012/052344 2011-02-04 2012-02-02 Structure étanche Ceased WO2012105638A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011-023096 2011-02-04
JP2011023096A JP2012163144A (ja) 2011-02-04 2011-02-04 密封構造

Publications (1)

Publication Number Publication Date
WO2012105638A1 true WO2012105638A1 (fr) 2012-08-09

Family

ID=46602844

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2012/052344 Ceased WO2012105638A1 (fr) 2011-02-04 2012-02-02 Structure étanche

Country Status (2)

Country Link
JP (1) JP2012163144A (fr)
WO (1) WO2012105638A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110319193A (zh) * 2019-07-24 2019-10-11 西安蓝天石化设备有限公司 一种高压曲面环形密封结构

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018206477B3 (de) * 2018-04-26 2019-02-07 Robert Bosch Gmbh Vorrichtung zur Abdichtung zweier mit unterschiedlichen Fluiden gefüllter Räume bei einer MEMS-Sensoranordnung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6289568U (fr) * 1985-11-25 1987-06-08
JPH0560246A (ja) * 1991-08-28 1993-03-09 Mitsubishi Heavy Ind Ltd 摺動シール装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6289568U (fr) * 1985-11-25 1987-06-08
JPH0560246A (ja) * 1991-08-28 1993-03-09 Mitsubishi Heavy Ind Ltd 摺動シール装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110319193A (zh) * 2019-07-24 2019-10-11 西安蓝天石化设备有限公司 一种高压曲面环形密封结构

Also Published As

Publication number Publication date
JP2012163144A (ja) 2012-08-30

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