WO2018083955A1 - シール構造及びその製造方法 - Google Patents

シール構造及びその製造方法 Download PDF

Info

Publication number
WO2018083955A1
WO2018083955A1 PCT/JP2017/036851 JP2017036851W WO2018083955A1 WO 2018083955 A1 WO2018083955 A1 WO 2018083955A1 JP 2017036851 W JP2017036851 W JP 2017036851W WO 2018083955 A1 WO2018083955 A1 WO 2018083955A1
Authority
WO
WIPO (PCT)
Prior art keywords
inner peripheral
peripheral wall
annular seal
ring
seal member
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/JP2017/036851
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
透一 野渡
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.)
IIDA CO Ltd
Original Assignee
IIDA 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 IIDA CO Ltd filed Critical IIDA CO Ltd
Priority to US16/318,693 priority Critical patent/US10995858B2/en
Priority to CN201780044331.7A priority patent/CN109477578B/zh
Publication of WO2018083955A1 publication Critical patent/WO2018083955A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

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
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
    • F16J15/24—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings with radially or tangentially compressed packing
    • 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
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
    • 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
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
    • F16J15/184—Tightening mechanisms
    • F16J15/185—Tightening mechanisms with continuous adjustment of the compression of the packing
    • 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
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
    • F16J15/187—Self-aligning stuffing-boxes
    • 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
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
    • F16J15/20—Packing materials therefor
    • 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
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/26—Sealings between relatively-moving surfaces with stuffing-boxes for rigid sealing rings
    • 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
    • F16J15/56—Other sealings for reciprocating rods

Definitions

  • the present invention has a seal structure in which an internal space formed by the inner peripheral wall member and the shaft member is sealed by an annular seal member.
  • Patent Document 1 describes a seal ring made of an elastic body having an inner circumferential surface, an outer circumferential surface, and a side surface and having a quadrilateral cross section with respect to an engine of an internal combustion engine.
  • the seal ring is elastically deformed so that both side surfaces thereof become conical surfaces, and is attached to the ring groove, whereby the corner of the inner peripheral surface of the seal ring and the bottom surface of the seal groove are in line contact with each other, and the seal ring The corners of the outer peripheral surface and the inner peripheral surface of the cylinder are in line contact.
  • the seal structure described in Patent Document 1 is a single-stage lip seal having only one seal portion on one side with respect to the central axis in a longitudinal sectional view. Therefore, it is desired to produce a higher sealing performance by a relatively easy processing method.
  • the present invention can form a plurality of contact forms close to line contact between the outer peripheral portion of the annular seal member and the inner peripheral wall member to obtain high sealing performance, and can be manufactured by a relatively easy processing method. It is an object of the present invention to provide a possible sealing structure and a manufacturing method thereof.
  • the present invention includes an annular annular seal member having an outer peripheral portion and an inner peripheral portion, a shaft member having a seal groove in which the inner peripheral portion side of the annular seal member is disposed, and an internal space surrounded by an inner peripheral wall.
  • the annular seal member includes an inner peripheral wall member that arranges the shaft member disposed in the seal groove in the inner space, and at least the outer peripheral side of the annular seal member is A plurality of ring-shaped portions that are closed or not closed when viewed in the radial direction perpendicular to the axial direction of the annular seal member are formed by overlapping in the axial direction, and are formed in the radial direction of the annular seal member When viewed, two corners including a side facing the inner peripheral wall of the inner peripheral wall member in a longitudinal section of the plurality of ring-shaped portions on one side with respect to the central axis of the annular seal member One corner of the out is in contact with the inner peripheral wall of the inner peripheral wall member, it relates to a seal structure.
  • the longitudinal section of the ring-shaped portion may be a quadrangle that is inclined from the outer peripheral portion of the annular seal member to the inner peripheral portion and with respect to the radial direction.
  • a side facing the inner peripheral wall of the inner peripheral wall member in the longitudinal section of the plurality of ring-shaped portions is inclined with respect to the axial direction. It may be.
  • the annular seal member may be made of a fluororesin.
  • the present invention includes an annular annular seal member having an outer peripheral portion and an inner peripheral portion, a shaft member having a seal groove in which the inner peripheral portion side of the annular seal member is disposed, and an internal space surrounded by an inner peripheral wall.
  • the side of the annular seal member is formed by overlapping a plurality of ring-shaped portions that are closed or not closed when viewed in the radial direction orthogonal to the axial direction of the annular seal member.
  • the side facing the inner peripheral wall of the inner peripheral wall member in the longitudinal section of the plurality of ring-shaped portions is the The ring-shaped portion in a state parallel to the inner peripheral wall of the peripheral wall member is pressed in the axial direction, and thus when viewed in the radial direction of the annular seal member, the longitudinal section of the plurality of ring-shaped portions The ring-shaped portion in a state where one of the two corners including the side of the inner peripheral wall member facing the inner peripheral wall is in contact with the inner peripheral wall of the inner peripheral wall member.
  • the present invention relates to a method for manufacturing a seal structure.
  • the rectangular section of the ring-shaped portion may be a quadrangular shape that extends from the outer peripheral portion to the inner peripheral portion of the annular seal member and is inclined with respect to the radial direction.
  • the annular seal member may be made of a fluororesin.
  • a plurality of contact forms close to line contact are formed between the outer peripheral portion of the annular seal member and the inner peripheral wall member to obtain a high sealing performance, and it can be manufactured by a relatively easy processing method.
  • a possible sealing structure and a manufacturing method thereof can be provided.
  • FIG. 4 is a longitudinal sectional view virtually showing only the annular seal member 2 in a state of being disposed in the seal groove 5 of the shaft member 4.
  • FIG. 4 is a longitudinal sectional view of seal structure 1 of a 1st embodiment. It is a figure which shows the process in which the longitudinal cross-section of the annular seal member 2 inclines in one manufacturing method of the seal structure 1 of 1st Embodiment.
  • FIG. 6A shows the process in which the longitudinal cross-section of the annular seal member 2 inclines in one manufacturing method of the seal structure 1 of 1st Embodiment. It is the elements on larger scale of the longitudinal section of seal structure 1A of a 2nd embodiment of the present invention (figure 2 correspondence figure). It is an exploded sectional view of seal structure 1A of a 2nd embodiment (corresponding figure of Drawing 5). It is a figure which shows the process in which the longitudinal cross-section of the cyclic
  • FIG. 6B shows the process in which the longitudinal cross-section of the cyclic
  • FIG. 1 is a longitudinal sectional view of a seal structure 1 according to a first embodiment of the present invention.
  • FIG. 2 is a partially enlarged view of FIG.
  • FIG. 3 is a longitudinal sectional view showing the shaft member 4 in a state where the annular seal member 2 is virtually removed.
  • FIG. 4 is a longitudinal sectional view virtually showing only the annular seal member 2 in a state of being disposed in the seal groove 5 of the shaft member 4.
  • FIG. 5 is an exploded cross-sectional view of the seal structure 1 of the first embodiment.
  • the seal structure 1 of the first embodiment includes an annular annular seal member 2 having an outer peripheral portion 21 (see FIG. 4) and an inner peripheral portion 22 (see FIG. 4), and a shaft member. 4 and an inner peripheral wall member 6.
  • the shaft member 4, the annular seal member 2, and the inner peripheral wall member 6 have an axial direction D1 and a radial direction D2.
  • the axial direction D1 is the longitudinal direction of the shaft member 4.
  • the radial direction D2 is a direction orthogonal to the axial direction D1, and extends radially from the axial direction D1.
  • the shaft member 4 As shown in FIGS. 1 to 3, the shaft member 4 has a seal groove 5 on the outer peripheral portion thereof where the inner peripheral portion 22 side of the annular seal member 2 is disposed.
  • the seal groove 5 has a groove bottom 51 having a constant outer diameter along the axial direction D1.
  • 1st axial direction D11 the direction which goes to the 2nd main body 42 from the below-mentioned 1st main body 41
  • the shaft member 4 includes a first main body 41, a second main body 42, an inclined pressing ring 43, and a second coupling member 44.
  • the first body 41 has a stepped shape in which the first axial direction D11 side is a small diameter portion 411.
  • the first main body 41 has a small diameter portion 411 on the first axial direction D11 side, a large diameter portion 413 on the second axial direction D12 side, and between the small diameter portion 411 and the large diameter portion 413, A step surface 412 is provided.
  • the small diameter portion 411 has a cylindrical shape.
  • the step surface 412 is inclined so as to form an acute angle ( ⁇ 90 degrees) with the second axial direction D12 in the longitudinal sectional view, and connects the small diameter portion 411 and the large diameter portion 413.
  • the step surface 412 is in contact with the second axial direction D12 side of the annular seal member 2 disposed in the seal groove 5 of the shaft member 4.
  • the cross section of the large diameter portion 413 is not limited to a circle.
  • the first main body 41 has a first coupling portion 415 on one end surface 414 on the first axial direction D11 side.
  • bond part 415 in this embodiment consists of an internal thread part.
  • the second main body 42 includes a radially extending portion 421, an axially extending portion 422, and a male screw portion through hole 423.
  • the radially extending portion 421 extends in the radial direction D ⁇ b> 2 so as to cover the one end surface 414 of the first main body 41.
  • the radially extending portion 421 has a disk shape having a male screw portion through hole 423 at the center thereof.
  • the axially extending portion 422 extends from the outer peripheral portion of the radially extending portion 421 in the second axial direction D12.
  • the axially extending portion 422 is cylindrical.
  • the male threaded portion through hole 423 is provided at the center of the radially extending portion 421.
  • a male screw portion 442 (described later) of the second coupling member 44 is disposed in the male screw portion through-hole 423 in a state where it penetrates.
  • the inclined pressing ring 43 is an annular member, has an inclined surface 431 on the second axial direction D12 side, and has a second contact surface 432 on the first axial direction D11 side, An inner peripheral surface 433 is provided inside the radial direction D2.
  • the inclined surface 431 is inclined so as to form an acute angle ( ⁇ 90 degrees) with the second axial direction D12.
  • the inclined surface 431 presses the first axial direction D11 side of the annular seal member 2 disposed in the seal groove 5 of the shaft member 4 in the second axial direction D12.
  • the inclined surface 431 presses a region on the inner diameter side in the radial direction D2 on the surface on the first axial direction D11 side of the ring-shaped portion 3.
  • the second contact surface 432 is pressed in the second axial direction D12 by the axially extending portion 422 of the second main body 42.
  • the inner peripheral surface 433 is in contact with or close to the small-diameter portion 411 of the first main body 41.
  • the second coupling member 44 is formed of a male screw and includes a head portion 441 and a male screw portion 442. Since the head portion 441 is thicker than the male screw portion through hole 423 of the second main body 42, the head portion 441 cannot pass through the male screw portion through hole 423. Since the male screw portion 442 is thinner than the male screw portion through-hole 423 of the second main body 42, the male screw portion through-hole 423 can be penetrated.
  • the head portion 441 presses the surface on the first axial direction D11 side in the radially extending portion 421 of the second main body 42 in the second axial direction D12.
  • the male screw portion 442 passes through the male screw portion through hole 423 of the second body 42 and is coupled (screwed) to the first coupling portion 415 of the first body 41.
  • the seal groove 5 is formed by the inclined surface 431 of the pressing ring 43.
  • the longitudinal section of the seal groove 5 is a parallelogram. Two sides of one set of the four sides of the parallelogram extend in the axial direction D1. The other set of two sides is inclined so as to form an acute angle ( ⁇ 90 degrees) with the second axial direction D12.
  • the inner peripheral wall member 6 has an internal space 62 surrounded by the inner peripheral wall 61.
  • the inner peripheral wall 61 and the inner space 62 extend in the axial direction D1.
  • the cross section of the inner peripheral surface of the inner peripheral wall 61 is circular. Accordingly, the outer cross section of the inner space 62 is also circular.
  • the shaft member 4 in which the annular seal member 2 is disposed in the seal groove 5 is disposed in the internal space 62.
  • annular seal member 2 The annular seal member 2 is formed by overlapping a plurality of ring-shaped portions 3 that are closed when viewed in the radial direction D2 in the axial direction D1.
  • the number of the ring-shaped portions 3 forming one annular seal member 2 is 3 to 10.
  • the ring-shaped portion 3 that is closed when viewed in the radial direction D2 is formed of a ring-shaped member that is actually connected in an annular shape as shown in FIG.
  • the longitudinal cross section of the ring-shaped portion 3 is a quadrangle, and more specifically a rectangle.
  • the longitudinal cross section of the ring-shaped portion 3 is a quadrangle (rectangle) that extends from the outer peripheral portion 21 to the inner peripheral portion 22 of the annular seal member 2 and is inclined with respect to the radial direction D2.
  • the thickness t3 (see FIG. 5) in the axial direction D1 is, for example, 1 to 3 mm.
  • the longitudinal section of the ring-shaped portion 3 is inclined with respect to the radial direction D2 on one side with respect to the central axis C1 of the annular seal member 2.
  • the longitudinal section of the ring-shaped portion 3 is inclined so as to form an acute angle ( ⁇ 90 degrees) of inclination angle ⁇ 1 with the radial direction D2.
  • the inclination angle ⁇ 1 is, for example, 10 to 80 degrees, and preferably 30 to 60 degrees.
  • the ring-shaped portion 3 has only one corner 32 including the outer periphery 31 in contact with the inner peripheral wall 61 of the inner peripheral wall member 6 in the longitudinal sectional view. .
  • the two corners including the outer periphery 31 facing the inner peripheral wall 61 of the inner peripheral wall member 6 in the longitudinal section of the plurality of ring-shaped portions 3 when viewed in the radial direction D2 of the annular seal member 2 The one corner 32 is in contact with the inner peripheral wall 61 of the inner peripheral wall member 6.
  • One corner portion 32 of the plurality of ring-shaped portions 3 forms the outer peripheral portion 21 of the annular seal member 2.
  • Each ring-shaped portion 3 is formed with a seal in a contact state close to a line contact in a longitudinal sectional view by the corner portion 32. Accordingly, a plurality of seals in a contact state close to line contact in a longitudinal sectional view are formed by one corner portion 32 of the plurality of ring-shaped portions 3. Such a seal is formed over the entire circumference in the circumferential direction.
  • the other corner 33 (see FIG. 4) including the outer periphery 31 is not in contact with the inner peripheral wall 61 of the inner peripheral wall member 6.
  • a corner portion 37 (see FIG. 4) that is a diagonal of one corner portion 32 of the outer periphery 31 is formed on the small diameter portion 411 of the first main body 41 of the shaft member 4. It is in contact.
  • the plurality of corner portions 37 form the inner peripheral portion 22 of the annular seal member 2.
  • the corner portion 38 (see FIG. 4) that is the opposite corner of the other corner portion 33 of the outer periphery 31 is not in contact with the small diameter portion 411 of the first main body 41 of the shaft member 4.
  • the ring-shaped portion 3 in a state where the ring-shaped portion 3 is not disposed in the seal groove 5, the ring-shaped portion 3 is not inclined with respect to the radial direction D ⁇ b> 2 in the longitudinal sectional view, and the radial direction It extends to D2.
  • the ring-shaped part 3 in such a state is also referred to as a “ring-shaped part 30” as appropriate.
  • Such a ring-shaped portion 30 is obtained by cutting a cylindrical material into round pieces.
  • the annular seal member 2 (ring-shaped portion 3) is made of a fluororesin.
  • the fluororesin include PTFE, PFA, and FEP.
  • Fluorocarbon resin has excellent properties such as chemical resistance, electrical insulation, heat resistance, low friction (self-lubricating), and machinability, and is an annular seal member compared to metals and general resins. Suitable as 2.
  • the resin forming the annular seal member 2 may be a resin other than a fluororesin. Examples of the resin other than the fluororesin include PEEK, urethane, carbon-containing resin, rubber, various self-lubricating resins, and various engineering plastics.
  • the annular seal member 2 may be formed from a fiber material. A carbon fiber material is mentioned as a fiber material.
  • the annular seal member 2 may be made of metal. An example of the metal is gun metal.
  • FIGS. 6A and 6B are diagrams illustrating a process in which the longitudinal cross section of the annular seal member 2 is inclined in the manufacturing method of the seal structure 1 according to the first embodiment.
  • the ring-shaped portion 30 (3) is not inclined with respect to the radial direction D2 before the seal structure 1 is formed.
  • the plurality of ring-shaped portions 30 and the inclined pressing ring 43 are extrapolated to the small diameter portion 411 of the first main body 41 in order.
  • the male screw portion 442 of the second coupling member 44 is passed through the male screw portion through hole 423, the inclined pressing ring 43, and the ring-shaped portion 30 of the second main body 42 in this order. Thereafter, the male threaded part 442 of the second coupling member 44 and the first coupling part 415 (female threaded part) of the first main body 41 are coupled (screwed together). Thereby, the step surface 412 of the first main body 41 and the inclined surface 431 of the inclined pressing ring 43 approach the axial direction D1 so that the seal groove 5 is formed.
  • the plurality of ring-shaped portions 30 (3) are sandwiched between the step surface 412 of the first main body 41 and the inclined surface 431 of the inclined pressing ring 43, and the step surface 412 of the first main body 41 and the inclined surface 431.
  • the pressure ring 43 is inclined with respect to the radial direction D2.
  • the side 31 facing the inner peripheral wall 61 of the inner peripheral wall member 6 in the longitudinal section of the plurality of ring-shaped portions 3 is the inner peripheral wall 61 of the inner peripheral wall member 6.
  • the ring-shaped part 30 (3) in a state parallel to the axial direction D1 is pressed in the axial direction D1, and the longitudinal section is inclined with respect to the radial direction D2.
  • the seal structure 1 according to the first embodiment has the following effects, for example.
  • the seal structure 1 of the first embodiment includes an annular annular seal member 2 having an outer peripheral portion 21 and an inner peripheral portion 22, and a shaft member 4 having a seal groove 5 in which the inner peripheral portion 22 side of the annular seal member 2 is disposed.
  • a seal structure 1 including an inner space 62 surrounded by the inner peripheral wall 61, and an inner peripheral wall member 6 in which the shaft member 4 in which the annular seal member 2 is disposed in the seal groove 5 is disposed in the inner space 62.
  • At least the outer peripheral portion 21 side of the annular seal member 2 includes a plurality of ring-shaped portions 3 that are closed or not closed when viewed in the radial direction D2 orthogonal to the axial direction D1 of the annular seal member 2.
  • a plurality of ring-shaped portions 3 that are closed or not closed when viewed in the radial direction D2 orthogonal to the axial direction D1 of the annular seal member 2.
  • One corner 32 of the two corner portions including an outer peripheral 31 that faces the peripheral wall 61 is in contact with the inner peripheral wall 61 of the inner peripheral wall member 6.
  • the seal structure 1 of the first embodiment a plurality of contact forms close to line contact are formed between the inner peripheral wall 61 of the inner peripheral wall member 6 and the outer peripheral portion 21 of the annular seal member 2. Therefore, since a plurality of high contact surface pressure seals are formed, high sealing performance can be obtained. Further, the annular seal member 2 formed by overlapping a plurality of ring-shaped portions 3 having a rectangular longitudinal section in the axial direction D1 can be manufactured by a relatively easy processing method. The annular seal member 2 formed by overlapping a plurality of closed ring-shaped portions 3 in the axial direction D1 is more flexible than a solid shape (solid material) and is relatively deformed in the radial direction D2. It becomes easy. Therefore, the sealing performance is high.
  • the annular seal member 2 formed by overlapping a plurality of closed ring-shaped portions 3 in the axial direction D1 can be easily deformed in the axial direction D1. Therefore, scraping properties such as oil existing on the inner peripheral wall 61 of the inner peripheral wall member 6 are high.
  • the stepped surface 412 of the first main body 41 and the narrow surface 412 of the first main body 41 are combined with the first coupling portion 415 of the first main body 41 and the male screw portion 442 of the second coupling member 44 being coupled.
  • the seal groove 5 is formed by the diameter portion 411 and the inclined surface 431 of the inclined pressing ring 43.
  • a plurality of inclined ring-shaped portions 3 can be arranged in the seal groove 5 by coupling the first main body 41 and the second coupling member 44. .
  • the plurality of ring-shaped portions 3 arranged in the seal groove 5 can be taken out. Therefore, the arrangement of the plurality of ring-shaped portions 3 in the seal groove 5 of the shaft member 4 and the removal of the plurality of ring-shaped portions 3 from the seal groove 5 are easy.
  • the manufacturing method of the seal structure 1 of 1st Embodiment is the outer surface which opposes the internal peripheral wall 61 of the internal peripheral wall member 6 in the longitudinal cross-section of the some ring-shaped part 3, when it sees in the radial direction D2 of the annular seal member 2.
  • the ring-shaped portion 30 It is relatively easy to manufacture the ring-shaped portion 30 in a state where the outer periphery 31 facing the inner peripheral wall 61 of the inner peripheral wall member 6 is parallel to the inner peripheral wall 61 of the inner peripheral wall member 6 in the longitudinal section of the plurality of ring-shaped portions 3. It is. 2 including the outer periphery 31 facing the inner peripheral wall 61 of the inner peripheral wall member 6 in the longitudinal section of the plurality of ring-shaped portions 3 by pressing the ring-shaped portion 30 that is easy to manufacture in the axial direction D1. It is possible to easily form the ring-shaped portion 3 in a state where one of the two corner portions 32 is in contact with the inner peripheral wall 61 of the inner peripheral wall member 6.
  • FIG. 7 is a partially enlarged view of the longitudinal section of the seal structure 1A according to the second embodiment of the present invention (corresponding to FIG. 2).
  • FIG. 8 is an exploded sectional view of the seal structure 1A of the second embodiment (corresponding to FIG. 5).
  • FIG. 9A is a diagram showing a process in which the longitudinal section of the annular seal member 2A is inclined in the manufacturing method of the seal structure 1A of the second embodiment (corresponding to FIG. 6A).
  • FIG. 9B is a diagram illustrating a process in which the longitudinal section of the annular seal member 2A is inclined in the manufacturing method of the seal structure 1A of the second embodiment (corresponding to FIG. 6B).
  • the second embodiment will be described mainly focusing on differences from the first embodiment.
  • the description of the first embodiment is appropriately applied to points that are not particularly described. Also in the second embodiment, the same effects as in the first embodiment are achieved.
  • the longitudinal section of the ring-shaped portion 3A is a parallelogram on one side with respect to the central axis C1 of the annular seal member 2A. is there.
  • the inclination angle ⁇ 1 ( ⁇ 90 degrees) formed between the longitudinal section of the ring-shaped portion 3A and the radial direction D2 is the value before the formation of the seal structure 1A (see FIG. 9A). It is smaller after the formation of the seal structure 1A (see FIG. 7).
  • the side 31 of the ring-shaped portion 3A is parallel to the axial direction D1 before the formation of the seal structure 1A (see FIG. 9A), but after the formation of the seal structure 1A (see FIG. 7). Inclined with respect to the axial direction D1.
  • FIG. 10A is a view showing a process in which the longitudinal section of the annular seal member 2 is inclined in the manufacturing method of the seal structure 1B of the third embodiment, and corresponds to FIG. 6A.
  • FIG. 10B is a diagram illustrating a process in which the longitudinal cross section of the annular seal member 2 is inclined in the manufacturing method of the seal structure 1B according to the third embodiment, and corresponds to FIG.
  • the third embodiment will be described mainly focusing on differences from the first embodiment. In the third embodiment, the description of the first embodiment is appropriately applied to points that are not particularly described. Also in the third embodiment, the same effects as in the first embodiment are achieved.
  • the longitudinal section of the ring-shaped portion 3 is a quadrangular shape that extends from the outer peripheral portion 21 to the inner peripheral portion 22 of the annular seal member 2 and is inclined with respect to the radial direction D2.
  • the seal structure 1B of the third embodiment as shown in FIG. 10B, when only the outer peripheral portion 21 side of the annular seal member 2 is viewed in the radial direction D2, a plurality of ring-shaped portions 3 are provided. , By overlapping in the axial direction D1.
  • the inner peripheral portion 22 side of the annular seal member 2 is integral (block shape) when viewed in the radial direction D2. That is, in the present invention, at least the outer peripheral portion 21 side of the annular seal member 2 only needs to be formed by overlapping a plurality of ring-shaped portions 3 in the axial direction D1 when viewed in the radial direction D2.
  • the seal structure 1B of the third embodiment is manufactured, for example, as shown in FIGS. 10A and 10B.
  • a second step surface 416 that is recessed in parallel to the radial direction D2 is provided between the inner end 417 of the step surface 412 of the first main body 41 and the small diameter portion 411.
  • a pressing surface 434 extending in parallel with the radial direction D2 is provided between the inner end 435 of the inclined surface 431 of the inclined pressing ring 43 and the inner peripheral surface 433.
  • the step surface 412 of the first main body 41 and the inclined surface 431 of the inclined pressing ring 43 approach the axial direction D1 and the second step surface 416 of the first main body 41 and the inclined press so that the seal groove 5 is formed.
  • the pressing surface 434 of the ring 43 approaches the axial direction D1.
  • the plurality of ring-shaped portions 30 (3) provided only on the outer peripheral portion 21 side of the annular seal member 2 are formed between the step surface 412 of the first main body 41 and the inclined surface 431 of the inclined pressing ring 43. It is sandwiched between them and is inclined with respect to the radial direction D2 following the inclination of the stepped surface 412 of the first main body 41 and the inclined surface 431 of the inclined pressing ring 43.
  • the outer periphery 31 facing the inner peripheral wall 61 of the inner peripheral wall member 6 is the inner peripheral wall of the inner peripheral wall member 6 in the longitudinal section of the plurality of ring-shaped portions 3.
  • the ring-shaped part 30 (3) in a state parallel to 61 is pressed in the axial direction D1, and the longitudinal section is inclined with respect to the radial direction D2.
  • the integral inner peripheral portion 22 side of the annular seal member 2 is sandwiched between the second step surface 416 of the first main body 41 and the pressing surface 434 of the inclined pressing ring 43.
  • FIG. 11A is a view showing a process in which the longitudinal section of the annular seal member 2 is inclined in the manufacturing method of the seal structure 1C of the fourth embodiment, and is a view corresponding to FIG. 9A.
  • FIG. 11B is a view corresponding to FIG. 7, illustrating a process in which the longitudinal section of the annular seal member 2 is inclined in the manufacturing method of the seal structure 1 ⁇ / b> C of the fourth embodiment.
  • the fourth embodiment will be described mainly focusing on differences from the second embodiment and the third embodiment. In the fourth embodiment, the descriptions of the second embodiment and the third embodiment are appropriately applied to points that are not particularly described. Also in the fourth embodiment, the same effects as in the second embodiment and the third embodiment are exhibited.
  • the longitudinal section of the ring-shaped portion 3 is a quadrangle that extends from the outer peripheral portion 21 to the inner peripheral portion 22 of the annular seal member 2 and is inclined with respect to the radial direction D2.
  • the seal structure 1C of the fourth embodiment as shown in FIG. 11B, when only the outer peripheral portion 21 side of the annular seal member 2 is viewed in the radial direction D2, a plurality of ring-shaped portions 3 are provided. , By overlapping in the axial direction D1.
  • the inner peripheral portion 22 side of the annular seal member 2 is integral (block shape) when viewed in the radial direction D2.
  • the seal structure 1C of the fourth embodiment is manufactured, for example, as shown in FIGS. 11A and 11B.
  • a second step surface 416 that is inclined at an angle different from that of the step surface 412 is provided between the inner end 417 of the step surface 412 of the first main body 41 and the small diameter portion 411.
  • a pressing surface 434 that is inclined at an angle different from that of the inclined surface 431 is provided between the inner end 435 of the inclined surface 431 of the inclined pressing ring 43 and the inner peripheral surface 433.
  • FIG. 11A and FIG. 11B the above-described difference in tilt angle is depicted very small.
  • the step surface 412 of the first main body 41 and the inclined surface 431 of the inclined pressing ring 43 approach the axial direction D1 and the second step surface 416 of the first main body 41 and the inclined press so that the seal groove 5 is formed.
  • the pressing surface 434 of the ring 43 approaches the axial direction D1.
  • the plurality of ring-shaped portions 30 (3) provided only on the outer peripheral portion 21 side of the annular seal member 2 are formed between the step surface 412 of the first main body 41 and the inclined surface 431 of the inclined pressing ring 43. It is sandwiched between them and is inclined with respect to the radial direction D2 following the inclination of the stepped surface 412 of the first main body 41 and the inclined surface 431 of the inclined pressing ring 43.
  • the outer periphery 31 facing the inner peripheral wall 61 of the inner peripheral wall member 6 is the inner peripheral wall of the inner peripheral wall member 6 in the longitudinal section of the plurality of ring-shaped portions 3.
  • the ring-shaped part 30 (3) in a state parallel to 61 is pressed in the axial direction D1, and the longitudinal section is inclined with respect to the radial direction D2.
  • the integral inner peripheral portion 22 side of the annular seal member 2 is sandwiched between the second step surface 416 of the first main body 41 and the pressing surface 434 of the inclined pressing ring 43.
  • the vertical cross section of the ring-shaped portion 3 is a rectangle in the first embodiment and a parallelogram in the second embodiment, but is not limited thereto, and may be another quadrangle.
  • the outer periphery 31 and the inner periphery 36 are not limited to a linear shape, and may be curved or uneven. At least the outer peripheral portion 21 side of the annular seal member may form a spiral shape by a plurality of ring-shaped portions that are not closed when viewed in the radial direction D2 being continuous in the axial direction D1.
  • the region on the inner diameter side in the radial direction D2 on the surface on the first axial direction D11 side of the ring-shaped portion 3 is pressed by the inclined surface 431 of the inclined pressing ring 43.
  • a surface located at the center of the radial direction D2 on the surface on the first axial direction D11 side is Alternatively, the inclined pressing ring 43 may be pressed by the inclined surface 431 or the like.
  • the seal groove 5 of the shaft member 4 is formed by coupling the first main body 41 and the second coupling member 44.
  • the shaft member 4 may be integrally formed.
  • the annular seal member 2 cannot be disposed in the seal groove 5 by utilizing the coupling process between the first main body 41 and the second coupling member 44. Therefore, the ring-shaped portion 30 is deformed so that the portion around the seal groove 5 in the shaft member 4 can be overcome, and the ring-shaped portion 3 is disposed in the seal groove 5.
  • the female screw portion and the male screw portion may be reversed. These may be a coupling structure other than a screw.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Devices (AREA)
PCT/JP2017/036851 2016-11-01 2017-10-11 シール構造及びその製造方法 Ceased WO2018083955A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US16/318,693 US10995858B2 (en) 2016-11-01 2017-10-11 Seal structure and manufacturing method thereof
CN201780044331.7A CN109477578B (zh) 2016-11-01 2017-10-11 密封结构及其制造方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-214388 2016-11-01
JP2016214388A JP6423405B2 (ja) 2016-11-01 2016-11-01 シール構造及びその製造方法

Publications (1)

Publication Number Publication Date
WO2018083955A1 true WO2018083955A1 (ja) 2018-05-11

Family

ID=62076121

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/036851 Ceased WO2018083955A1 (ja) 2016-11-01 2017-10-11 シール構造及びその製造方法

Country Status (5)

Country Link
US (1) US10995858B2 (enExample)
JP (1) JP6423405B2 (enExample)
CN (1) CN109477578B (enExample)
TW (1) TWI656289B (enExample)
WO (1) WO2018083955A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020070840A (ja) * 2018-10-30 2020-05-07 バンドー化学株式会社 Ｖリング

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112080304B (zh) * 2020-10-08 2021-11-09 山东沂南园区开发建设有限公司 废旧轮胎热解反应炉专用密封摩擦副
CN116658399A (zh) * 2023-06-19 2023-08-29 江苏恒久机械股份有限公司 密封组件及隔膜压缩机
EP4530503A1 (fr) * 2023-09-27 2025-04-02 Airbus Operations SAS Bouchon d'étanchéité déformable et procédé pour boucher une cavité à l'aide d'un tel bouchon d'étanchéité

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0611044A (ja) * 1992-06-22 1994-01-21 Honda Motor Co Ltd パッキン構造体
JP2017078503A (ja) * 2015-10-22 2017-04-27 大豊工業株式会社 シール構造およびシール部材

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1727732A (en) * 1929-09-10 Packing
US1044787A (en) * 1912-04-30 1912-11-19 Andrew R Klingloff Self-setting packing.
US1666805A (en) * 1926-05-03 1928-04-17 Leonard P Williams Anchor
US2851291A (en) * 1954-11-30 1958-09-09 Crane Packing Co Rotary mechanical seal
FR1557910A (enExample) * 1968-01-09 1969-02-21
US3967525A (en) * 1974-01-02 1976-07-06 Wej-It Expansion Products, Inc. Spring action expansion bolt
US3945649A (en) * 1974-03-18 1976-03-23 Giichi Nakamura Completely fluidtight and frictionless shaft seal packing
US4363465A (en) * 1976-06-16 1982-12-14 Smith International, Inc. Extreme temperature, high pressure balanced, rising stem gate valve with super preloaded, stacked, solid lubricated, metal-to-metal seal
US4192517A (en) * 1979-02-26 1980-03-11 Conoco, Inc. Anti-scale stuffing box improvement
US4302020A (en) * 1980-03-07 1981-11-24 United Aircraft Products, Inc. Actuating sealing joint
US4324407A (en) * 1980-10-06 1982-04-13 Aeroquip Corporation Pressure actuated metal-to-metal seal
US4516481A (en) * 1981-02-06 1985-05-14 Robert Geffroy Piston and piston rings set
US4451047A (en) * 1981-07-31 1984-05-29 Smith International, Inc. Seal
USRE32295E (en) * 1983-04-04 1986-11-25 Mobil Oil Corporation Hindered phenyl esters of cyclic borates and lubricants containing same
US4609146A (en) * 1983-09-08 1986-09-02 The Toro Company Sprinkler with improved riser seal
US6182755B1 (en) * 1998-07-01 2001-02-06 Sandia Corporation Bellow seal and anchor
US6305264B1 (en) * 1998-11-05 2001-10-23 Smc Kabushiki Kaisha Actuator control circuit
US6305265B1 (en) * 1999-06-03 2001-10-23 Bechtel Bwxt Idaho Llc Method and apparatus for pressurizing vaporous fluids
EP1930633B1 (en) 2006-12-06 2010-10-06 Shigeo Ando High pressure sealing apparatus
JP5041896B2 (ja) * 2006-12-06 2012-10-03 成雄 安藤 高圧シール装置
JP5531885B2 (ja) * 2010-09-28 2014-06-25 トヨタ自動車株式会社 球帯状シール体及びその製造方法
JP5833867B2 (ja) 2011-09-01 2015-12-16 富士重工業株式会社 ピストン
JP5458076B2 (ja) * 2011-09-20 2014-04-02 本田技研工業株式会社 封止構造体
JP6345124B2 (ja) * 2012-02-17 2018-06-20 フェデラル−モーグル・リミテッド・ライアビリティ・カンパニーＦｅｄｅｒａｌ−Ｍｏｇｕｌ Ｌｌｃ 内燃機関用のピストンリング
US9328825B2 (en) * 2013-08-29 2016-05-03 Garlock Sealing Technologies, Llc Anti-extrusion cone packing

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0611044A (ja) * 1992-06-22 1994-01-21 Honda Motor Co Ltd パッキン構造体
JP2017078503A (ja) * 2015-10-22 2017-04-27 大豊工業株式会社 シール構造およびシール部材

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020070840A (ja) * 2018-10-30 2020-05-07 バンドー化学株式会社 Ｖリング

Also Published As

Publication number Publication date
CN109477578A (zh) 2019-03-15
TW201819801A (zh) 2018-06-01
JP2018071724A (ja) 2018-05-10
CN109477578B (zh) 2021-04-06
US10995858B2 (en) 2021-05-04
JP6423405B2 (ja) 2018-11-14
US20190249777A1 (en) 2019-08-15
TWI656289B (zh) 2019-04-11

Similar Documents

Publication Publication Date Title
JP6423405B2 (ja) シール構造及びその製造方法
JP5654607B2 (ja) ばね活性化動的封止アセンブリ用のシステム、方法および装置
KR102357624B1 (ko) 고순도 유체 통로를 접합하기 위한 초밀봉 가스켓
EP1677033B1 (en) Gasket ring with sharp peaks
JP6256117B2 (ja) 密封装置
CN106662250A (zh) 密封装置
JP6356373B1 (ja) 密封装置
CN107208799A (zh) 密封环及密封结构
US20190301614A1 (en) Groove Ring Seal And Method For Production Thereof
JP6432670B2 (ja) 密封装置及び密封構造
JP6423404B2 (ja) シール構造及びその製造方法
WO2021078803A1 (en) Seal with back-up ring
JP2016125619A (ja) パイプ及びパイプ連結構造
JP6628214B1 (ja) ガスケット
WO2016111121A1 (ja) シールリング
JP7203971B2 (ja) 密封装置
JP2020034039A (ja) パッキン
JP2017211060A (ja) 密封構造
JP6623775B2 (ja) 密封構造
TW202411554A (zh) 賦能元件及其製造及使用方法
JP2016020714A (ja) メカニカルシール
JP2017082877A (ja) シールリング
JP2019173801A (ja) ブロックへのガスケットの装着構造およびブロック
JP2007139179A (ja) ピストンシール
WO2020058771A1 (ja) シールリング

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17867800

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17867800

Country of ref document: EP

Kind code of ref document: A1