WO2019107602A1 - Actionneur de soupape électrohydraulique doté d'un dispositif de réduction des vibrations - Google Patents

Actionneur de soupape électrohydraulique doté d'un dispositif de réduction des vibrations Download PDF

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Publication number
WO2019107602A1
WO2019107602A1 PCT/KR2017/013866 KR2017013866W WO2019107602A1 WO 2019107602 A1 WO2019107602 A1 WO 2019107602A1 KR 2017013866 W KR2017013866 W KR 2017013866W WO 2019107602 A1 WO2019107602 A1 WO 2019107602A1
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WO
WIPO (PCT)
Prior art keywords
bracket
packing
fixing
connecting bar
plate
Prior art date
Application number
PCT/KR2017/013866
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English (en)
Korean (ko)
Inventor
한수민
권재범
정대희
Original Assignee
(주)에치케이씨
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Filing date
Publication date
Application filed by (주)에치케이씨 filed Critical (주)에치케이씨
Publication of WO2019107602A1 publication Critical patent/WO2019107602A1/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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • 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
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston

Definitions

  • the present invention relates to an electrohydraulic valve actuator, and more particularly, to an electrohydraulic valve actuator having a vibration reducing device for reducing vibrations transmitted from a housing by providing a packing between a housing and a control board.
  • IoT Internet of Things
  • valve equipment in the piping for energy transportation plays a key role in the energy industry.
  • the actuator for valve control is also used as an internal sensor
  • the efficiency improvement by data collection and transmission function, preventive maintenance and condition based maintenance are being researched and developed.
  • the present invention relates to an electrohydraulic valve actuator, which is suitable for driving a large facility due to its energy industry characteristics and is a large-sized product with a maximum capacity of 350,000 Nm.
  • the valve is opened and closed by generating pressure through a hydraulic motor operation of the electrohydraulic driving device in accordance with a signal conversion in the main control device which receives the input signal of the user and by rotating the yoke through the operation of the hydraulic cylinder by the pressure Lt; / RTI >
  • the electrohydraulic valve actuator includes a housing H in which a driving unit M and a hydraulic cylinder CY are installed, a main control unit MC and an encoder control unit installed in the housing H, EC, Fig. 7).
  • the main control unit MC includes a control board CB for signal input and conversion and an MCC (Motor Control Center) for controlling a hydraulic motor, an operation gear unit for controlling the rotation radius of the valve by the valve actuator,
  • MCC Motor Control Center
  • signals are transmitted and received by a user together with data from various sensors. Hydraulic pressure is generated by driving the hydraulic motor in the MCC by the signal, And the displacement due to the rotation of the actuator unit, which is interlocked with the rotation of the yoke of the actuator by the actuator, is converted into a signal by the resistance change through the encoder control unit EC and the current change.
  • Such electrohydraulic valve actuators are subject to vibration due to the operation of the hydraulic cylinder and impacts due to vibration have a great influence on the operation of the valve actuators.
  • the control board CB Circuit failure due to disconnection of main elements and ground fault due to unexpected down time can cause safety accidents and cost loss.
  • the encoder control unit EC synchronously rotates the encoder gear, and is connected to the encoder gear and the encoder shaft, so that the rotating permanent magnet forms a magnetic field, and the rotation number and the rotation position by the sensor are provided as absolute position signals,
  • the encoder control unit EC synchronously rotates the encoder gear, and is connected to the encoder gear and the encoder shaft, so that the rotating permanent magnet forms a magnetic field, and the rotation number and the rotation position by the sensor are provided as absolute position signals
  • the present invention has been made to solve the above-mentioned problems and it is an object of the present invention to provide an electrohydraulic valve actuator having a vibration reduction device capable of improving the stability and precision of a circuit by minimizing an impact caused by vibrations mounted on a control board and an encoder board
  • the purpose is to provide.
  • a vibration damping device for a vehicle comprising a main control part MC installed in a housing H for controlling a valve actuator, a main control part vibration damping device 100 for reducing vibration transmitted to the main control part MC,
  • the main control unit vibration reduction device 100 includes a connection bar B installed inside the housing H and a stationary bracket 130 mounted on the connection bar B in the shape of a plate, A second bracket 120 on which a control board CB of the main control unit MC is installed and a second bracket 120 on which the first bracket 110 and the second bracket 120 are mounted, And a packing (140) that is installed between the valve body (140) and reduces vibration.
  • the fixing bracket 130 includes a fixing bracket body 131 having a ring shape and disposed in a direction perpendicular to the connecting bar B and a reinforcing plate 133 connecting the both sides of the fixing bracket body 131, And a plurality of insertion holes 133 formed circumferentially spaced apart from each other are formed in the fixing bracket body 131 so that the connection bar B is installed.
  • the first bracket 110 includes a first bracket body 111 in the shape of a plate and a plurality of branch plates 112 protruding in the width direction from both sides in the width direction of the first bracket body 111, And a fixing plate 113 protruding in the width direction from the upper and lower ends of the first bracket body 111. Ring fixing holes 113-1 are formed at both ends of the fixing plate 113 So that the fastener passes through the fixing hole 112-1 and the fixing bracket main body 131.
  • the second bracket 120 includes a second bracket body 121 having a rectangular shape with an open center and a plurality of second brackets 121 protruding in the width direction from both widthwise sides of the second bracket body 121, A first fixing plate 123 protruding in the width direction from the upper end of the second bracket body 121 and bent at a specific angle and a second fixing plate 123 bent in a width direction from the lower end of the second bracket body 121 A second fixing plate 124 having a protruding and plate-like shape and a bent fixing part 125 bent in a C-shape at a lower end of the second bracket body 121 and having the control board CB disposed therein
  • the seating part 122 of the second bracket 120 and the seating part 112 of the first bracket 110 are opposed to each other and the first fixing plate 123 and the second fixing plate 124
  • a fixed rod FR is installed to fix the control board CB.
  • the packing 140 is formed by connecting an upper packing 141 and a lower packing 142 of an elastic material having a disk shape and vertically spaced from each other and a central portion of the upper packing 141 and the lower packing 142, And a lower reinforcing rib 144 protruding downward from the lower surface of the lower packing 142.
  • the lower packing 142 is provided with an upper packing 141,
  • the mounting portion 111-2 of the first bracket 110 is disposed in a space between the upper packing 141 and the lower packing 142 and the mounting portion 122 of the second bracket 120 is mounted on the upper packing 141, And a fixture is inserted into the space between the fixing hole 122-1 of the seating part 122 and the connection part 143 of the packing 140 to be mutually fixed.
  • the apparatus further includes an encoder control unit EC installed in the housing H and an encoder board vibration reduction device 200 provided in an encoder board EB of the encoder control unit EC for reducing vacuum
  • the connecting bar B includes a first connecting bar B1 and a second connecting bar B2 which are longitudinally divided and the second connecting bar B2 is fixed inside the housing H,
  • the connecting bar B1 is screwed to the second connecting bar B2 and a plate shaped partition plate 300 is provided between the first connecting bar B1 and the second connecting bar B2,
  • the board abatement device 200 includes a fixed bar 210 installed inside the housing H, a fixed bracket 230 mounted on the fixed bar 210 and having a plate shape, (240) and an encoder board (EB) installed in the packing (240).
  • the packing 240 is formed by connecting an upper packing 241 and an upper packing 242 and an intermediate portion of the upper packing 241 and the lower packing 242 having a circular plate shape and being vertically spaced from each other, And a lower reinforcing rib 244 protruding downward from the lower surface of the lower packing 242.
  • the lower packing 242 may be formed in a shape of a rectangular parallelepiped shape, 1) of the encoder board EB is disposed in a space between the upper packing 241 and the lower packing 242.
  • a fixing bracket 230 is disposed under the lower packing 241 and the fixing bracket 230 And the fixing portion is inserted into the inner space of the connection portion 243 of the packing 240 to be fixed to each other.
  • the vibration direction generated by the operation of the hydraulic cylinder of the valve body in which the housing H is installed is defined as the X direction and the direction orthogonal to the X plane is defined as the Y direction
  • a direction in which the mounting surface H3 of the housing H is attached to the valve body and orthogonal to the X direction and the Y direction as a direction in which the housing H stands up is defined as the Z direction
  • a connecting bar B provided inside the housing H is disposed in the Y direction orthogonal to the installation direction of the housing H and is disposed in the Z direction orthogonal to the installation direction H3
  • the control board CB is arranged in the Z direction orthogonal to the connecting bar B and is spaced apart from the mounting surface H3 by a predetermined distance in the Y direction.
  • FIG. 1 is a perspective view of an electrohydraulic valve actuator according to an embodiment of the present invention
  • FIG. 2 is an exploded perspective view of a main control unit vibration reduction device of an electrohydraulic valve actuator according to an embodiment of the present invention
  • FIG. 3 is an exploded perspective view of a main control unit vibration reduction device of an electrohydraulic valve actuator according to an embodiment of the present invention
  • FIG. 4 is a perspective view of a main control unit vibration reduction device of an electrohydraulic valve actuator according to an embodiment of the present invention
  • FIG. 5 is an exploded perspective view illustrating a first bracket and a second bracket of the electro-hydraulic valve actuator according to an embodiment of the present invention
  • FIG. 6 is a partially enlarged cross-sectional view showing an enlarged cross-sectional view of a vibration control device for a main control part of an electrohydraulic valve actuator according to an embodiment of the present invention
  • FIG. 7 is an exploded perspective view illustrating a main control unit vibration reduction apparatus and an encoder control unit vibration reduction apparatus of an electrohydraulic valve actuator according to an embodiment of the present invention
  • FIG. 8 is a cross-sectional view of an encoder control unit vibration reduction device of an electrohydraulic valve actuator according to an embodiment of the present invention
  • FIG. 9 is an exploded perspective view illustrating an encoder board and a fixing bracket of an encoder control vibration reduction device of an electrohydraulic valve actuator according to an embodiment of the present invention
  • FIG. 10 is an exploded perspective view showing an encoder board of an electro-hydraulic valve actuator according to an embodiment of the present invention.
  • FIG. 11 is a perspective view illustrating an angle of an electrohydraulic valve actuator control board according to an embodiment of the present invention.
  • An electrohydraulic valve actuator 10 having a vibration reduction device includes a main control unit MC installed in a housing H and controlling a valve actuator as shown in FIGS. 1 to 6, And a main control unit vibration reduction apparatus 100 for reducing vibration transmitted to the main control unit MC.
  • the main control unit vibration reduction device 100 includes a connection bar B installed inside the housing H, a fixing bracket 130 mounted on the connection bar B and having a plate shape, A second bracket 120 on which the control board CB of the main control unit MC is installed and a second bracket 120 on which the first and second brackets 110 and 120 are installed. And a packing 140 installed to reduce vibrations.
  • the fixing bracket 130 is fixed to the inside of the housing H through the connecting bar B.
  • the first bracket 110 is coupled to the fixing bracket 130 through the fastener and interlocked with each other.
  • the first bracket 110, on which the control board CB of the main control unit MC is installed is connected via the packing 140. That is, the vibration generated by the hydraulic cylinder CY is transmitted to the fixing bracket 130 and the first bracket 110 via the housing H and the connecting bar B.
  • the vibration is attenuated at the packing 140 and hardly transmitted to the first bracket 120. [ Therefore, the vibration transmitted to the control board CB installed on the first bracket 120 is significantly reduced, so that the shock due to the vibration is minimized, thereby achieving stability.
  • the fixing bracket 130 includes a fixing bracket body 131 having a thin ring shape and disposed in a direction perpendicular to the connecting bar B and a reinforcing plate 130 connecting the both sides of the fixing bracket body 131, (132).
  • the fixing bracket main body 131 is provided with a plurality of insertion holes 133 formed in the circumferential direction so as to be connected to the connecting bar B.
  • the reinforcing plate 132 is installed to cross the inside of the fixing bracket body 131 and may have a plate shape as shown in the figure.
  • the strength of the fixing bracket 130 having a small thickness can be improved by the reinforcing plate 132.
  • the first bracket 110 is installed in the fixing bracket 130.
  • the first bracket 110 includes a first bracket body 111 in the shape of a plate and a plurality of branch plates 112 protruding in the width direction from both sides in the width direction of the first bracket body 111, And a fixing plate 113 protruding in the width direction from the upper and lower ends of the first bracket body 111, respectively.
  • Ring fixing holes 113-1 are formed at both ends of the fixing plate 113 so that fixtures (not shown) are fixed to each other through the fixing holes 112-1 and the fixing bracket main body 131 .
  • the second bracket 120 includes a second bracket body 121 having a rectangular shape with a center open and a control board CB mounted thereon and a second bracket body 121 protruding in the width direction from both sides in the width direction of the second bracket body 121 A first fixing plate 123 protruding in the width direction from the upper end of the second bracket body 121 and bent at a specific angle, and a second fixing plate 123 protruding in the width direction from the upper end of the second bracket body 121, And a second fixing plate 124 protruding in the width direction from the lower end of the first fixing plate 124 and having a plate shape.
  • the second bracket body 121 includes a bending part 125 bent in a U-shape at a lower end of the second bracket body 121 and having the control board CB disposed therein.
  • the second bracket 120 can securely protect the control board CB by the bending and fixing unit 125 as well as the control board CB as described above.
  • the seating part 122 of the second bracket 120 and the seating part 112 of the first bracket 110 are opposed to each other and a packing 140 is provided between the seating parts 122, which will be described later.
  • the seating part 122 is fixed to the second bracket body 121.
  • the second bracket body 121 is fixed to the first fixing plate 123 and the second fixing plate 124 by a fixing rod FR ) In the height direction.
  • the first fixing plate 123 is formed below the uppermost seating portion 122 of the plurality of seating portions 122.
  • the first fixing plate 123 protrudes in the width direction from the second bracket body 121 and bends in the direction of the uppermost seating part 122.
  • a fixing rod FR is installed at the end of the first fixing plate 123.
  • the second fixing plate 124 formed at the lower end of the second bracket body 121 is in the shape of a plate and the fixing rods FR are provided on both side ends of the second fixing plate 124.
  • the control board CB is mounted on the plurality of fixed rods FR.
  • the packing 140 prevents vibrations transmitted from the first bracket 110 from being transmitted to the second bracket 120 as described above.
  • the packing 140 connects the upper packing 141 and the lower packing 142 with the central portion of the upper packing 141 and the lower packing 142 with a circular plate shape and is vertically spaced apart from the upper packing 141, And a connection portion 143 that is hollow. That is, the connecting part 143 is formed at the center of the upper packing 141 and the lower packing 142, and a space is formed between the upper packing 141 and the lower packing 142 at the outer side of the connecting part 143.
  • an upper reinforcing rib 143 protrudes from the upper surface of the upper packing 141 and a lower reinforcing rib 144 protrudes down from the lower surface of the lower packing 142.
  • the upper reinforcing ribs 143 may have a shape having an arc height
  • the seating part 111-2 of the first bracket 110 is disposed in the space between the upper packing 141 and the lower packing 142 as described above and the second bracket 120 Is disposed on the other side. At this time, the fixture is inserted into the space between the fixing hole 122-1 of the seating part 122 and the connection part 143 of the packing 140 and fixed to each other.
  • the vibration transmitted through the first bracket 110 is transmitted to the packing 140 and attenuated. Since the second bracket 120 is disposed on the upper part of the packing 140, the second bracket 120 is connected to the packing 140 but the vibration is attenuated in the packing 140.
  • an encoder control unit EC provided in the housing H and an encoder board EB of the encoder control unit EC, Device 200. < / RTI >
  • the connecting bar B includes a first connecting bar B1 and a second connecting bar B2 divided in the longitudinal direction and the second connecting bar B2 is fixed inside the housing H
  • the first connecting bar (B1) is screwed into the second connecting bar (B2).
  • a plate-like partition plate 300 is provided between the first connecting bar B1 and the second connecting bar B2.
  • a connecting bar B penetrating through the partition plate 300 is formed in the partition plate 300 through a hollow receiving bar H1 formed in the housing H, ).
  • the encoder board vibration reduction apparatus 200 includes a fixed bar 210 installed in the housing H and a fixed bracket 230 mounted on the fixed bar 210 in the shape of a plate, And an encoder board (EB) installed on the packing (240).
  • EB encoder board
  • the fixing bar 210 is inserted and fixed in the receiving bar H2 formed inside the housing H like the connecting bar B. Therefore, the vibration generated in the housing H is transmitted to the fixed bar 210.
  • the vibration transmitted to the fixed bar 210 is transmitted to the fixed bracket 230.
  • the packing 240 is installed in the fixing bracket 230 to reduce vibration transmitted to the encoder board EB, thereby preventing vibration transmission, thereby enhancing stability.
  • the packing 240 is formed by connecting an upper packing 241 and an upper packing 242 and an intermediate portion of the upper packing 241 and the lower packing 242, (243). That is, the packing 240 of the encoder board vibration reduction apparatus 200 includes the upper packing 241 and the lower packing 242 in the same manner as the packing 140 of the control board vibration reduction apparatus 100.
  • An encoder board (EB) is installed in a space between the upper packing (241) and the lower packing (242).
  • the upper packing 241 may include an upper reinforcing rib 243 protruding from the upper surface of the upper packing 241 and a lower reinforcing rib 244 protruding downward from the lower surface of the lower packing 242 to improve the strength.
  • the encoder board EB is formed with a hole portion EB1, and the packing 240 is inserted into the empty space of the seat portion EB1. That is, a seat EB-1 of the encoder board EB is disposed in a space between the upper packing 241 and the lower packing 242, and a fixing bracket 230 is disposed under the lower packing 241 do.
  • the fixture is inserted into the inner space of the connection portion 243 of the fixing bracket 230 and the packing 240, and is fixed to each other.
  • the encoder control unit EC includes a count shaft EB1 interlocked with the rotation of the valve and a drive belt EB2 interlocked with the rotation of the count shaft EB1.
  • the position of the valve is sensed by the transmission of the rotational force of the drive belt EB2.
  • the valve body (not shown) in which the housing H is installed receives the vibration by the operation of the hydraulic cylinder as described above. 1 and 11, the installation surface H3 of the housing H is installed on the valve body and the hydraulic cylinder CY installed on the valve body operates the hydraulic cylinder CY, Main vibration occurs in the installation direction.
  • the installation direction of the control board CB is arranged in a direction orthogonal to the vibration direction, vibration transmission can be reduced as much as possible.
  • the vibration direction generated by the operation of the hydraulic cylinder of the valve body in which the housing H is installed is defined as X direction
  • the direction orthogonal to the same plane as the X direction is defined as Y direction
  • a direction in which the mounting surface H3 of the housing H is attached to the valve body and orthogonal to the X direction and the Y direction as a direction in which the housing H stands is defined as a Z direction.
  • the housing (H) is installed in the Z direction orthogonal to the X direction which is the vibration direction.
  • the connecting bar B installed in the housing H is arranged in the Y direction orthogonal to the installation direction of the housing H and is spaced from the installation surface H3 by a predetermined distance in the Z direction. That is, if the center point of the mounting surface H3 is defined as a first origin O1 and one point in the longitudinal direction of the connecting bar B is defined as a second origin O2, Are spaced apart from the first origin O1 by a predetermined distance L1 in the Z direction.
  • the control board CB is disposed in the Z direction perpendicular to the connecting bar B as a plate shape. That is, the connecting bars B are arranged in the Y direction and the control board CB is arranged in the Z direction orthogonal thereto. Meanwhile, the control board CB is spaced apart from the mounting surface H3 by a predetermined distance in the Y direction. That is, as shown in the drawing, the control board CB is disposed at a predetermined distance L2 from the first origin O1 of the mounting surface H3 in the Y direction.
  • the vibration transmitted to the mounting surface H3 is primarily transmitted through the housing H in the installation direction (Y direction) orthogonal to the vibration direction (X direction) and is primarily attenuated
  • the connecting bar B is disposed in the direction orthogonal to the housing H in the Y direction so that the connecting bar B is secondarily attenuated and the connecting bar B Is transmitted through the control board (CB) orthogonal to the connecting bar (B), so that a substantial part of the vibration generated in the final stage is attenuated.
  • Control board vibration reduction device 110 First bracket
  • Fixing bar 230 Fixing bracket

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

Abstract

La présente invention concerne un actionneur de soupape électrohydraulique et, plus particulièrement, un actionneur de soupape électrohydraulique ayant un dispositif de réduction de vibrations, qui comprend une garniture entre un boîtier et une carte d'unité de commande et réduit ainsi les vibrations transférées à partir du boîtier.
PCT/KR2017/013866 2017-11-29 2017-11-30 Actionneur de soupape électrohydraulique doté d'un dispositif de réduction des vibrations WO2019107602A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20170161390 2017-11-29
KR10-2017-0161390 2017-11-29

Publications (1)

Publication Number Publication Date
WO2019107602A1 true WO2019107602A1 (fr) 2019-06-06

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PCT/KR2017/013866 WO2019107602A1 (fr) 2017-11-29 2017-11-30 Actionneur de soupape électrohydraulique doté d'un dispositif de réduction des vibrations

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR980007398A (ko) * 1996-06-14 1998-03-30 구자홍 전자 간이 교환기를 이용한 목장 착유 장치 및 그 방법
JPH10208798A (ja) * 1997-01-23 1998-08-07 Kel Corp 基板接続装置およびこの基板接続装置を用いたアクチュエータ取付ユニット
JP2003343650A (ja) * 2002-05-29 2003-12-03 Nidec Tosok Corp スリーブ
JP2006155972A (ja) * 2004-11-26 2006-06-15 Ohtsuka Poly-Tech Co Ltd 電磁リレーの取付構造
US8261773B2 (en) * 2009-07-30 2012-09-11 Idex Health & Science Llc Multi-position micro-fluidic valve system with removable encoder assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR980007398A (ko) * 1996-06-14 1998-03-30 구자홍 전자 간이 교환기를 이용한 목장 착유 장치 및 그 방법
JPH10208798A (ja) * 1997-01-23 1998-08-07 Kel Corp 基板接続装置およびこの基板接続装置を用いたアクチュエータ取付ユニット
JP2003343650A (ja) * 2002-05-29 2003-12-03 Nidec Tosok Corp スリーブ
JP2006155972A (ja) * 2004-11-26 2006-06-15 Ohtsuka Poly-Tech Co Ltd 電磁リレーの取付構造
US8261773B2 (en) * 2009-07-30 2012-09-11 Idex Health & Science Llc Multi-position micro-fluidic valve system with removable encoder assembly

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