WO2014156881A1 - Actionneur - Google Patents

Actionneur Download PDF

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Publication number
WO2014156881A1
WO2014156881A1 PCT/JP2014/057533 JP2014057533W WO2014156881A1 WO 2014156881 A1 WO2014156881 A1 WO 2014156881A1 JP 2014057533 W JP2014057533 W JP 2014057533W WO 2014156881 A1 WO2014156881 A1 WO 2014156881A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
diaphragm
pressure
pressure chamber
actuator
Prior art date
Application number
PCT/JP2014/057533
Other languages
English (en)
Japanese (ja)
Inventor
邦宜 松井
Original Assignee
大豊工業株式会社
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 大豊工業株式会社 filed Critical 大豊工業株式会社
Publication of WO2014156881A1 publication Critical patent/WO2014156881A1/fr

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Classifications

    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/10—Characterised by the construction of the motor unit the motor being of diaphragm type
    • 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
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
    • F16K31/1262—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like one side of the diaphragm being spring loaded

Definitions

  • the present invention relates to an actuator, and more specifically, the inside of a housing is divided into two pressure chambers adjacent by a diaphragm, and a plate as an output member is moved forward and backward by supplying and discharging negative pressure to one of the pressure chambers. It relates to an actuator.
  • an actuator in which a housing is partitioned into two adjacent pressure chambers by a diaphragm, and an output member is moved forward and backward by supplying and discharging negative pressure to one of the pressure chambers (for example, Patent Document 1). ).
  • the first aspect of the present invention includes a diaphragm that is partitioned into a first pressure chamber and a second pressure chamber and that can be elastically deformed, and a dish-like plate attached to the diaphragm.
  • the actuator configured to move the plate forward and backward by supplying and discharging negative pressure to and from the first pressure chamber, An opening is formed in the plate for communicating the advancing and retreating direction of the plate.
  • a negative pressure is supplied to the first pressure chamber, a negative pressure acts between the plate and the diaphragm via the opening. It is made to let you.
  • the housing is divided into a first pressure chamber and a second pressure chamber, and includes an elastically deformable diaphragm and a dish-like plate attached to the diaphragm.
  • an actuator configured to move the plate forward and backward by supplying and discharging negative pressure to and from the pressure chamber
  • the diaphragm is provided with a base fabric for increasing strength, and a plurality of beads are formed on the base fabric in a circumferential direction and bulge toward the plate. Is.
  • the sealing properties between the plate and the diaphragm can be improved by bringing the plurality of beads into close contact with the plate.
  • reference numeral 1 denotes an actuator.
  • the actuator 1 is a turbocharger (not shown) interlocked with the output rod 2 by moving the output rod 2 forward and backward as required.
  • the gate valve is opened and closed.
  • the actuator 1 includes an outer peripheral edge 6A sandwiched between a housing 5 composed of a pair of upper and lower first members 3 and a second member 4 having a cup shape, and the first member 3 and the second member 4.
  • the output rod 2 is connected to the lower end of the second member 4 and protrudes outward from the rod hole 4B of the second member 4, and is disposed in the first pressure chamber A so as to be elastic over the plate 7 and the wall surface of the first member 3.
  • a mounted spring 8 8.
  • first pressure chamber A an atmospheric pressure and a negative pressure are selectively introduced through a conduit 11 connected to the first member 3, and the second pressure chamber B is in the second pressure chamber B. Atmospheric pressure is always introduced through an air hole 4A formed by opening a part of the wall surface of the member 4.
  • the plate 7 is made of resin and formed in a dish shape. As will be described in detail later, the plate 7 is disposed in the first pressure chamber A and attached to the upper surface 6C of the diaphragm 6. When atmospheric pressure is introduced into the first pressure chamber A, both the first pressure chamber A and the second pressure chamber B are at atmospheric pressure.
  • the plate 7 and the output rod 2 are connected to the bottom portion (the connecting portion) of the plate 7 by the elastic force of the spring 8. 7C) is held at the forward end position, which is a non-operating position where a gap does not occur by contacting a part of the wall surface of the second member 4.
  • the negative pressure is introduced into the first pressure chamber A instead of the atmosphere, a differential pressure is generated between the negative pressure in the first pressure chamber A and the atmospheric pressure in the second pressure chamber B.
  • the differential pressure between the atmospheric pressure in the second pressure chamber B and the negative pressure in the first pressure chamber A acts on the plate 7 and the diaphragm 6, it resists the elastic force of the spring 8 at the initial stage of operation.
  • the bottom of the plate 7 and the output rod 2 (the bottom of the connecting portion 7C) are separated from a part of the wall surface of the second member 4 (a state on the right side of the center line in FIG. 1).
  • the spring 8 is compressed, and the plate 7 and the output rod 2 are retracted from the forward end position to the backward end position (a state on the left side of the center line in FIG. 1).
  • the gate valve of the turbocharger (not shown) linked to the other end of the output rod 2 is closed.
  • both the inside of the first pressure chamber A and the second pressure chamber B become atmospheric pressure.
  • the elastic force of 8 causes the plate 7 and the output rod 2 to return from the retracted end position to the inoperative forward end position.
  • the actuator 1 moves the plate 7 and the output rod 2 forward and backward by supplying and discharging negative pressure to and from the first pressure chamber A.
  • the configuration described above and the operation based thereon are basically the same as those of the conventionally known actuator 1.
  • the plate 7 and the diaphragm 6 are configured as follows, thereby improving the sealing performance between the plate 7 and the diaphragm 6. That is, the diaphragm 6 is made of rubber having elasticity, and the entire region is formed thin. As described above, the outer peripheral edge 6 ⁇ / b> A of the diaphragm 6 is sandwiched between the first member 3 and the second member 4 while maintaining airtightness. A through hole is formed in the center of the diaphragm 6, and an edge of the through hole is an inner peripheral edge 6 ⁇ / b> B of the diaphragm 6. The inner peripheral edge 6B is formed to be about three times thicker than other regions.
  • the diaphragm 6 has a radially inner side than the outer peripheral edge 6A except for a portion of the outer peripheral edge 6A sandwiched between the members 3 and 4 and a portion corresponding to a through-hole 7F, 7F on the plate 7 side described later.
  • the base fabric 12 is embedded in the region on the side (see FIG. 3). Thereby, the strength of the diaphragm 6 itself is improved.
  • a plurality of beads 6D are concentrically formed on the outer surface adjacent to the inner peripheral edge 6B on the upper surface 6C of the diaphragm 6, and are also concentric to a position close to the outer peripheral edge 6A.
  • a plurality of beads 6F are formed in a shape. Each of these beads 6D and 6F is formed so as to be continuous in the circumferential direction, and is formed so as to bulge out toward the plate 7 which is on the upper side.
  • the plate 7 has a substantially disc-shaped pressure receiving portion 7A located on the center side, a tapered portion 7B extending obliquely rearward in the axial direction from the outer peripheral portion of the pressure receiving portion 7A, and a shaft at the center of the pressure receiving portion 7A. And a connecting portion 7C formed so as to protrude in the direction.
  • a bottomed hole 7D is formed in the shaft portion on the lower surface side of the connecting portion 7C, and an annular groove 7E is formed in the outer peripheral portion of the connecting portion 7C at the boundary with the lower surface of the pressure receiving portion 7A.
  • two pairs of through holes 7F and 7F having the same inner diameter are formed in the pressure receiving portion 7A of the plate 7 with the center of the plate 7 (the connecting portion 7C) interposed therebetween.
  • the through holes 7F and 7F are formed at positions shifted from each other by 90 ° in the circumferential direction, and the through holes 7F and 7F are formed at the same distance from the center of the plate 7.
  • These through-holes 7F and 7F are formed at positions between the inner bead 6D and the outer bead 6F of the diaphragm 6 when the plate 7 is attached to the upper surface 6C of the diaphragm 6 (see FIG. (See FIGS. 2 and 3).
  • the pair of through-holes 7F and 7F are formed on the bottom surface of the pressure receiving portion 7A of the plate 7 and the diaphragm 6 when a negative pressure is introduced into the first pressure chamber A after connecting the plate 7 and the diaphragm 6. It functions as an opening for applying a negative pressure to the upper surface.
  • the plate 7 configured as described above is attached to the upper surface 6C of the diaphragm 6 so as to be in close contact with the upper surface. More specifically, the connecting portion 7C serving as the center of the plate 7 is inserted through the inner peripheral edge 6B of the through hole of the diaphragm 6 from the upper side to the lower side, and the thick inner peripheral edge 6B is annularly connected to the connecting portion 7C. It fits into the groove 7E. Thereby, the seal
  • three beads 6D and 6F are formed on the inner peripheral edge 6B side and the outer peripheral side, respectively, and these beads 6D and 6F are in close contact with the lower surface of the pressure receiving portion 7A. (See FIG. 3).
  • a through hole 7F on the plate 7 side is positioned between the inner bead 6D and the outer bead 6F.
  • the base fabric 12 is not provided in the location of the diaphragm 6 used as the position corresponding to each through-hole 7F (refer FIG. 3).
  • the plate 7 is attached in close contact with the upper surface 6C of the diaphragm 6 as described above.
  • the outer peripheral edge 6 ⁇ / b> A of the diaphragm 6 is sandwiched between the first member 3 and the second member 4 while maintaining airtightness.
  • the upper end 2A of the output rod 2 is fitted in the bottomed hole 7D of the connecting portion 7C inserted through the inner peripheral edge 6B of the diaphragm 6, and the lower end of the spring 8 is attached to the upper surface of the pressure receiving portion 7A of the plate 7. It is made to contact
  • the sealing performance between the two members can be improved. That is, during operation in which a negative pressure is introduced into the first pressure chamber A, the pressure is received between the lower surface of the pressure receiving portion 7A of the plate 7 and the upper surface of the diaphragm 6 through a pair of through holes 7F and 7F formed in the plate 7. Negative pressure acts. Therefore, the upper surface 6C of the diaphragm 6 is in close contact with the lower surface of the pressure receiving surface 7A of the plate 7. Therefore, the sealing performance between the pressure receiving portion 7A of the plate 7 and the diaphragm 6 can be improved. Moreover, as shown in FIG.
  • the base fabric 12 since the base fabric 12 is not provided in the location of the diaphragm 6 corresponding to the position of the through-holes 7F and 7F, when a negative pressure acts on the through-holes 7F and 7F. A part of the diaphragm 6 is elastically deformed to enter the through holes 7F and 7F. Therefore, the adhesion between the upper surface 6C of the diaphragm 6 and the pressure receiving portion 7A of the plate 7 can be improved.
  • the through holes 7F and 7F are arranged in pairs with the center of the plate 7 interposed therebetween, and are provided at positions equidistant from the center. Therefore, a negative pressure can be applied uniformly to the lower surface of the pressure receiving portion 7A of the plate 7.
  • the plate 7 and the diaphragm 6 are easily in close contact with each other.
  • the base fabric 12 is embedded in the diaphragm 6 for increasing the strength, and the strength of the diaphragm 6 itself can be improved.
  • a plurality of beads 6D and 6F are formed on the upper surface of the diaphragm 6 on the inner peripheral edge 6B side and the outer peripheral side with the positions of the through holes 7F and 7F interposed therebetween.
  • the adhesion force between the diaphragm 6 and the plate 7 is increased by providing the through hole 7 ⁇ / b> F (opening).
  • the inner peripheral edge 6B of the diaphragm 6 is formed thick and is fitted in an annular groove 7E on the plate 7 side. Therefore, the seal between the inner peripheral edge 6B of the diaphragm 6 and the plate 7 can be reliably maintained, and at the same time, the central portions of both members can be reliably connected. Therefore, the strength of the diaphragm itself can be improved and the sealing performance between the inner peripheral edge 6B of the diaphragm 6 and the plate 7 can be improved.
  • FIGS. 4 to 5 show a plate 7 as a second embodiment of the present invention.
  • a circumferential groove 7G continuous in the circumferential direction is formed on the lower surface of the pressure receiving portion 7A, and a through hole 7F communicating with the circumferential groove 7G is formed in the pressure receiving portion 7A. is doing.
  • the other configuration is the same as that of the plate 7 of the first embodiment, and the same numbers are assigned to the parts corresponding to the first embodiment. Even with the actuator including the plate 7 of the second embodiment, the same operation and effect as the first embodiment can be obtained.
  • the through holes 7F and 7F of the plate 7 are formed in two pairs (four in total) across the center (connecting portion 7C) of the plate 7. Two or more may be provided at the positions.
  • the shape of the through holes 7F, 7F is not limited to a circular shape when viewed from above, and may be a polygon.
  • the plate 7 is not limited to resin, but may be made of metal.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Actuator (AREA)

Abstract

L'intérieur d'un logement (3) est cloisonné en une première chambre de pression (A) sur la face supérieure et une seconde chambre de pression (B) sur la face inférieure par un diaphragme en caoutchouc (6), et une plaque en forme de disque (7) est fixée à une surface supérieure (6C) du diaphragme (6) pour former la première chambre de pression (A). Des paires de trous traversants (7F) sont percées dans une partie de réception de pression plate (7A) de la plaque (7) à quatre emplacements dans une direction circulaire entourant le centre. Lorsqu'une pression négative est introduite dans la première chambre de pression (A), la pression négative agit entre une surface inférieure de la partie de réception de pression (7A) de la plaque (7) et la surface supérieure (6C) du diaphragme (6) via les trous traversants (7F, 7F) dans la plaque (7). Par conséquent, la surface inférieure de la partie de réception de pression (7A) de la plaque (7) et la surface supérieure (6C) du diaphragme (6) adhèrent fortement l'une à l'autre en raison de la pression négative pour former un joint d'étanchéité souhaitable entre les deux éléments. Le joint d'étanchéité entre la plaque (7) et le diaphragme (6) peut être amélioré.
PCT/JP2014/057533 2013-03-29 2014-03-19 Actionneur WO2014156881A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013074118A JP2014199091A (ja) 2013-03-29 2013-03-29 アクチュエータ
JP2013-074118 2013-03-29

Publications (1)

Publication Number Publication Date
WO2014156881A1 true WO2014156881A1 (fr) 2014-10-02

Family

ID=51623860

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Application Number Title Priority Date Filing Date
PCT/JP2014/057533 WO2014156881A1 (fr) 2013-03-29 2014-03-19 Actionneur

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JP (1) JP2014199091A (fr)
WO (1) WO2014156881A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105443846A (zh) * 2016-01-15 2016-03-30 浙江三方控制阀股份有限公司 一种带有自密封型滚动膜片的执行机构

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5588061U (fr) * 1978-12-14 1980-06-18
JPS58129305U (ja) * 1982-02-24 1983-09-01 自動車機器株式会社 排気ブレ−キ用アクチュエ−タ
JPH0366904A (ja) * 1989-07-31 1991-03-22 Tochigi Fuji Ind Co Ltd アクチュエータ
JPH09203351A (ja) * 1996-01-26 1997-08-05 Taiho Kogyo Co Ltd 排気ガス再循環装置
JPH1162633A (ja) * 1997-08-25 1999-03-05 Jidosha Kiki Co Ltd 車両用の暖気装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5588061U (fr) * 1978-12-14 1980-06-18
JPS58129305U (ja) * 1982-02-24 1983-09-01 自動車機器株式会社 排気ブレ−キ用アクチュエ−タ
JPH0366904A (ja) * 1989-07-31 1991-03-22 Tochigi Fuji Ind Co Ltd アクチュエータ
JPH09203351A (ja) * 1996-01-26 1997-08-05 Taiho Kogyo Co Ltd 排気ガス再循環装置
JPH1162633A (ja) * 1997-08-25 1999-03-05 Jidosha Kiki Co Ltd 車両用の暖気装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105443846A (zh) * 2016-01-15 2016-03-30 浙江三方控制阀股份有限公司 一种带有自密封型滚动膜片的执行机构

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JP2014199091A (ja) 2014-10-23

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