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WO1993010359A1 - Appareil actionne par une pression pneumatique et dispositif de commande relatif - Google Patents

Appareil actionne par une pression pneumatique et dispositif de commande relatif Download PDF

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Publication number
WO1993010359A1
WO1993010359A1 PCT/JP1992/001505 JP9201505W WO9310359A1 WO 1993010359 A1 WO1993010359 A1 WO 1993010359A1 JP 9201505 W JP9201505 W JP 9201505W WO 9310359 A1 WO9310359 A1 WO 9310359A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve device
pneumatic operating
driven
driven valve
operating device
Prior art date
Application number
PCT/JP1992/001505
Other languages
English (en)
Japanese (ja)
Inventor
Shigeo Kanaya
Original Assignee
Myotoku 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 Myotoku Ltd. filed Critical Myotoku Ltd.
Publication of WO1993010359A1 publication Critical patent/WO1993010359A1/fr

Links

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
    • F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
    • F15B9/08—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor
    • F15B9/12—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor in which both the controlling element and the servomotor control the same member influencing a fluid passage and are connected to that member by means of a differential gearing

Definitions

  • the present invention relates to a pneumatic operating device such as a cylinder-type air cylinder or a swing type having a vane and a control device therefor.
  • a pneumatic operating device such as a cylinder-type air cylinder or a swing type having a vane and a control device therefor.
  • pneumatic actuators such as air cylinders are different from hydraulic cylinders in that air has compressibility. Therefore, operating members such as pistons do not need to be stopped at any position to be used. It was common to use it in a position or end position. Disclosure of the invention
  • the present invention relates to a pneumatic operating device capable of operating and stopping an operating member of a pneumatic operating device to an arbitrary operating position, operating the operating member in a reverse direction from that state, and arbitrarily adjusting an operating speed, and a control device thereof. To provide.
  • the present invention relates to a main body having an air supply port for supplying air, an exhaust port for discharging exhaust gas, and two connection ports respectively connected to two connection ports of a pneumatic operation device, And a driven valve device mounted on the main body and rotated in proportion to the operation amount of an operation member of a pneumatic operation device.
  • the driven valve device When the driven valve device is rotated in any one of the directions at a rotational speed that can be followed by the driven valve device, the driven valve device also rotates at substantially the same rotational speed in the same direction as the driven valve device, and the air is supplied from the air supply port.
  • the air of the pneumatic operating device flows into one connecting port and flows into the other connecting port, flows out through the exhaust port, and when the driven valve device is rotated in the opposite direction, the driven valve device also becomes the driven valve device.
  • the gas supplied from the air supply port is rotated at substantially the same rotational speed in the same direction to flow out to the other connection port, and the exhaust of the pneumatic operating device flows into the one connection port to form the exhaust port.
  • FIG. 1 to 10 show an embodiment of a control device for a pneumatic operating device according to the present invention
  • FIG. 1 is a longitudinal sectional view schematically showing the control device.
  • FIG. 2 is a longitudinal sectional view of the driven valve device.
  • Figure 3 is a side view.
  • FIG. 4 is a sectional view taken along line AA in FIG.
  • FIG. 6 is a front view of the driving valve device.
  • FIG. 7 is a cross-sectional view taken along the line C-C in FIG.
  • FIG. 8 is a sectional view taken along the line DD in FIG.
  • FIG. 9 is an explanatory diagram showing a state where the control device is connected to the air cylinder.
  • FIG. 10 is an operation explanatory diagram of the control device of the pneumatic operating device.
  • FIG. 11 is a partially omitted longitudinal sectional view showing an embodiment of an air cylinder according to the present invention.
  • HI2-1-5 shows an example of a control device for a pneumatic operating device of the present invention in FIGS. 1 to;
  • L2 shows an example of an H2S in which the driven pulp device and the driven pulp device of the above embodiment are changed, and
  • FIG. 12 shows a driven valve. It is a longitudinal section of a device.
  • FIG. 13 is a sectional view taken along line EE in FIG.
  • FIG. 14 is a sectional view taken along line FF in FIG.
  • FIG. 15 is a longitudinal sectional view of the driven valve device.
  • FIGS. 16 to 22 show other different embodiments of the control device of the pneumatic operating device according to the present invention, and FIG. 16 is a longitudinal sectional view thereof.
  • FIG. 17 is a front view of the driving valve device.
  • FIG. 18 is a plan view thereof.
  • FIG. 19 is a sectional view taken along line GG of FIG.
  • FIG. 20 is a front view of the driven valve device.
  • FIG. 21 is a plan view thereof.
  • FIG. 22 is a longitudinal sectional view thereof.
  • FIG. 23 is a front view showing, in partial cross section, an embodiment in which a control device is connected to a vane swing type pneumatic operating device.
  • FIG. 24 is an explanatory view showing another embodiment of the present invention.
  • reference numeral 10 denotes a control device of a pneumatic operating device according to the present invention, which has a main body 12 constituting an outer shell. This body has a hole 13 through the center that is formed through the center.
  • the air supply port 14 supplies the pressurized air reaching the specified position of the bracket, the exhaust port 15, and the air pressure.
  • a first connection port 16 and a second connection port 17 for communicating with both ends of the operating device are formed.
  • Reference numeral 18 denotes a driving member which is rotatably mounted in an airtight manner by using a packing 19 at one end of a hole 13 of the main body 12, for example, a stepping motor or another forward / reverse rotatable motor. It is designed to be rotated by the drive device 20 in the evening or by hand or the like.
  • 21 indicates a bearing.
  • Reference numeral 22 denotes a driven member consisting of a shaft that rotates in proportion to the amount of operation of the pneumatic actuator so that when the operating member such as the piston of the air cylinder operates, the direction is reversed when the member is reversed. , 25 rotatably supported.
  • reference numeral 26 denotes a substantially cylindrical driven valve device, which is formed from the end of the main driving member 18 and closed from the other end, and formed from the supply passage 27 and the driven member 22.
  • An exhaust passage 28 closed on the driving member 18 side is provided.
  • Reference numeral 30 denotes a first arc-shaped opening
  • 31 denotes a second arc-shaped opening. In these arc-shaped openings, arc-shaped openings 32a and 32b communicating with the air supply passage 27 and arc-shaped openings 33a and 33b communicating with the exhaust passage 28 are formed as shown.
  • the arc-shaped openings 32a, 33a in the first arc-shaped opening 30 and the arc-shaped openings 32b, 33b in the second arc-shaped opening 31 are respectively provided between the both ends through a closed portion 34 having a slight angle range.
  • the arcs CI32a and 32b and the arcs 33a and 33b are formed at positions 180 degrees out of phase with each other.
  • the driven valve device 26 is provided at the end thereof on the driven member 22 side with a lock 7 for engaging a pin 36 penetrating the driven member 22 so that the driven member 22 rotates simultaneously with rotation. It is supposed to.
  • the air supply passage 27 communicates with the air supply port 14, and the exhaust passage 28 communicates with the exhaust port 15.
  • reference numeral 40 denotes a cylindrical main valve device rotatably and closely fitted to the outside of the driven knob device 26, and the first and second arc-shaped openings are respectively provided.
  • a first hole portion 41 and a second hole portion 42 surrounding the outside of the portions 30 and 31 are provided.
  • the holes 43a and 43b are formed at the same angular position around the axis as shown in the figures, and the annular spaces 45a and 45b are formed outside the holes 43a and 43b. As shown in FIG. 1, these annular spaces 45a, 45b allow the holes 43a, 43b to communicate with the first and second connection ports 16, 17, respectively. It is also possible to form the main body 12 without providing these annular spaces.
  • Each of the holes 43 a and 43 b is formed to be shorter than the length of the closing portion 34 of the driven valve device 26.
  • 46 is a small diameter portion formed at the end of the driving member 18 side, and 47 is four holes formed in the small diameter portion.
  • Reference numeral 4 8 denotes a pin which penetrates and couples a pair of these holes facing each other and a hole 50 formed in the driving member 18, and includes a driving member 18 and a driving valve member.
  • the driven valve device 26 and the driven valve device 40 constitute means for switching the flow path as described later.
  • reference numeral 51 denotes a pinion that penetrates the driven member 22 and is fixed thereto.
  • Numeral 52 denotes a rack that meshes with the pinion, and has mounting members 53 at both ends for connecting to a piston of the air cylinder.
  • a commercially available rodless air cylinder 54 controlled by the controller 10 is shown.
  • 55 is a cylinder and 56 is a piston.
  • Reference numeral 57 denotes a connecting member connected to the biston 56 outside the cylinder 55, and is connected to the mounting member 53 at one end of the rack 52.
  • Reference numeral 58 denotes a starting end connected to the first connection port 16 of the cylinder 55 via the hose 59, and reference numeral 60 denotes an end connected to the second connection 17 via the hose 61. . Therefore, when the piston 56 moves from the start end 58 side to the end end 60 side, the movement of the rack 52 causes the pinion 51 to rotate counterclockwise when viewed from the main drive member 18 side of the control device 10. When the piston 56 moves in the opposite direction, the pinion 51 rotates in the opposite direction clockwise, and the pinion 51 always rotates in proportion to the movement length of the piston 56. . If the piston 56 is fixed and the cylinder 55 moves as an operating member, the rack
  • the driven member 22 rotates in proportion to the operation amount of the air cylinder 54. What should be done is.
  • FIG. 10 is a schematic cross-sectional view of the driven valve device 26 and the driven valve device 40 in the same positions as FIGS. 4, 5, 7, and 8 when viewed from the driving member 18 in various states. is there.
  • the main valve unit 40 is moved counterclockwise in the same direction as the rotation direction of the driven member 22 when the piston 56 is moved from the starting end 58 to the end 60 by the driving member 18.
  • O The hole 43 of the drive valve device 40 is open toward the exhaust arc opening 33a, and the hole 43b is facing the supply arc opening 32b. Open.
  • the pressurized air supplied from the air supply port 14 passes through the air supply flow path 27, the air supply arc opening 32 b, the hole 43 b, the second connection ⁇ 17, and the hose 61. It will be supplied from the terminal 60 into the cylinder 55. Also, the exhaust pushed by the piston 56 in the cylinder 55 is the hose 59, the first connecting cylinder 16,? L43a, exhaust arc-shaped opening 33a, g Air flow path 28, exhausted through exhaust port 15. If the piston 56 is at the starting end 58, this piston does not move, but if it is at any other position, it moves toward the starting end 58, and the driven valve device 26 moves clockwise as shown. Will rotate. In both cases of stop and rotation of the driven valve device 26, the driven valve device 40 is rotated, and the holes 43a and 43b are closed by the closing portion 34 in a short period of time, and the piston 56 is closed. If moving, stop momentarily.
  • the pressurized air is supplied or discharged until it stops first, and is kept at a fixed position.
  • the load fluctuation must be at a speed within a range in which the supply and discharge of air by the control device 10 can follow.
  • the rotational speed of the drive valve device 40 be substantially within the rotational speed at which the driven member 22 can rotate based on the movement of the piston 56.
  • the driven member 22 always rotates by substantially the same angle as the rotation angle of the main 11 valve device 40. Therefore, it is extremely easy to stop the piston 56 at an arbitrary position.
  • the operating speed of the biston 56 can be adjusted to a desired speed by appropriately setting the rotation speed of the driving valve device 40. Therefore, it is possible to arbitrarily control the arrangement state and speed of the piston 56 by simply rotating the driving member 18 appropriately.
  • 70 is an air cylinder
  • 71 is an outer cylinder
  • 72 is an end face member on the starting end side fixed to the main body 12 of the control device
  • 73 is an end closing the end of the outer cylinder 71.
  • the end member 75 on the side is a cylinder disposed inside the outer cylinder 71 via a cylindrical flow path 76.
  • the first connection port 16 coming from the control device 10 penetrates the end face member 72 and opens to the start end side, and the second connection port 17 is connected to the cylindrical flow path 76 at the start end side. It is open.
  • 7 7 is an appropriate number that opens from the cylindrical flow path 76 to the cylinder 75 at the end side Hole.
  • Reference numeral 80 denotes a rod-shaped screw that extends through the center of the cylinder 75, and the inclination angle of the spiral of the screw is, for example, about 45 degrees, and is inclined very steeply.
  • the driven member 22 for rotating the driven valve device 26 is integrally connected to the driven member 22 by means not shown.
  • Reference numeral 81 denotes a bearing, and reference numeral 82 denotes a nut for retaining the screw 80 and the driven member 22.
  • Reference numeral 83 denotes a cylindrical screw made reciprocable in the cylinder 75.
  • a female screw member 85 screwed to the screw 80 is fixed to the starting end side by an appropriate number of screws 86.
  • Reference numeral 88 denotes a cylindrical piston rod, which is screwed to one end of a screw part 89 of the biston, and surrounds the outside of the screw 80 and extends outward through the end face member 73.
  • Reference numeral 90 denotes a piston for sealing the gap with the piston rod 88 provided at the outer end of the screw 80.
  • 9 1 is a piston port
  • y is a hole that discharges leaked air from a sealing piston opened in the part that extends out of 8 8 8 9 is screwed into the tip of a biston rod 8 8
  • Reference numeral 95 denotes a detent rod serving as a detent means, which is guided by a guide part 96 fixed to the outer cylinder 71, and is fixed to the coupling screw member 92 by a force coupling member 97. It is. Therefore, when air is supplied from the first connection port 16 to the starting end of the cylinder 75 by rotating the driving member 18 in a counterclockwise direction, for example, and the piston 83 moves to the end, the piston moves. The screw 80 rotates without moving, and the driven member 22 rotates. When the driving member 18 is stopped in any state, the piston 83 stops at that position. When the driving member 18 is rotated clockwise, the piston 88 returns to the start end side.
  • the detent rod 95 may be provided in the cylinder 75 such that the piston 83 is airtightly aired.
  • a part of the control device of the pneumatic operating device shown in FIGS. 6 is formed in a cylindrical shape and rotated by the driving member 18
  • a drive valve device 40 is provided, which is formed with a supply arc-shaped opening 32a, 32b and an exhaust arc-shaped opening 33a, 33b on the inner side as shown.
  • the driven valve device 40 in the above embodiment has a driven valve device 26 similar to that formed in a shaft shape, and the holes 43 a and 43 are formed so as to have an angle difference of 180 degrees. b to open and reach the annular spaces 45a, 45b via the flow paths 98a, 98b, respectively, so as to be connected to the driven member 22 to rotate. Has become.
  • Other parts corresponding to those of the embodiment shown in FIGS. 1 to 10 are denoted by the same reference numerals.
  • each of the supply arc opening and the exhaust arc opening is on the same side only, for example, only the supply arc opening 32a and the exhaust arc opening 33a are formed, and the hole 43b is also symmetric with the hole 43a. It may be configured to be formed at an appropriate position.
  • a space 101 communicating with the air supply port 14 is formed above the hole 13 in the main body 12.
  • the driving valve device 40 is closely rotatably mounted in the hole 13 of the main body 12 and has a cylindrical peripheral surface and a bottom surface composed of a horizontal circular flat surface. It has a shaft portion 1 and 2 extending through the upper end surface.
  • Main driving valve system 4 0 This vertically supply arcuate opening 3 2 force 5 is formed on the lower end surface by the flow channel 1 0 3 arcuate cross section which penetrates and ⁇ space portion formed on a part of circumferential surface
  • a flow path 105 having an arc-shaped cross section extending downwardly in communication with the exhaust port 15 by 104, and an exhaust arc opening 33 is formed at the lower end surface.
  • the supply arc opening 32 and the exhaust arc opening 33 are located at the same radius around the central axis, and are arranged so as to extend only in the same angle range through a closed portion 34 at a slight interval therebetween. is there.
  • the driven valve device 26 is formed in a columnar shape, and is disposed below the main driving valve device 40 so as to be rotatable by being in planar contact with each other.
  • the arc-shaped opening 33 should have an angle difference of 180 degrees with the same radius as 3 Holes 43a, 43b, and reach the annular spaces 45a, 45b via the flow paths 98a, 98b, respectively. It is connected to 22 and rotated.
  • the holes 43a and 43b overlap with the closing part 34 at the same time and are closed in this case.
  • Reference numeral 106 denotes a helical spring that exerts elastic force so as to bring the main valve device 40 into close contact with the driven valve device 26, and 108 denotes a thrust bearing.
  • the annular spaces 45a and 45b communicate with the first and second connection ports 16 and 17, respectively.
  • Other parts are configured in the same manner as in the embodiment shown in FIGS. 1 to 10, and corresponding parts are denoted by the same reference numerals.
  • This embodiment can also operate in the same manner as the above embodiments. That is, when the air cylinder is operated in a predetermined direction, the shaft portion 102 is operated by a stepping motor or other means in the direction in which the vinyl 51 rotates, and the main valve device 40 is driven by the driven pulp device 26. It is sufficient to rotate at a rotational speed that can follow.
  • the driven valve device is configured to have two holes in the contact surface, and two arc-shaped openings similar to the driven valve device 40.
  • the driven pulp apparatus may be configured to have the following.
  • the control device 10 can be applied as a pneumatic operating device, for example, to a vane swing type pneumatic operating device 110 that swings a vane by air pressure.
  • the vane (not shown) and the output shaft 112 rotate reciprocally within 360 degrees, but the driven member 2 is configured to rotate this movement via a speed increasing device (not shown). 2, the driven valve device 26 is rotated.
  • the first and second connection ports 16 and 17 are connected to connection ports 113 and 115 of the pneumatic actuator 110 by hoses (not shown), respectively.
  • the control device 10 those of the various embodiments described above can be used.
  • a magnetic member arranged in parallel with the piston rod 57 A graduation member 1 16 and a detection member 1 17 fixed to a piston rod for reading the same are provided, and the detection signal is sent to a control circuit 118, and the signal is used as a control signal, or the motor 1 20 May be driven to rotate the driven valve device 26 (not shown).
  • Reference numeral 20 denotes a driving device such as a steering motor for driving the driving valve device 40 (not shown).
  • a known method such as disposing a magnetostrictive wire or a magnetostrictive tube in a hollow piston rod and fixing it to a cylinder, and determining the movement amount of the piston by a detection device provided in the piston is used.
  • Technology can be used to rotate the driven valve device as well.
  • a signal obtained by reading a scale of an optical scale formed directly or indirectly on a piston rod can be used.
  • the amount of movement of the operating member of the pneumatic operating device is transmitted to rotate the driven valve device 26 of the control device 10 using a flexible wire or the like. Further, such a change can be applied to a vane swing type pneumatic operating device via an appropriate device for converting a rotary motion into a linear motion as required.
  • the control device of the pneumatic operating device can make various changes.
  • any transmission may be used as long as the driven member 22 of the control device 10 rotates in proportion to the operation length of the operation member of the pneumatic operation device.
  • a chain and a sprocket can be used instead of the rack 52 and the pinion 51, or a stepped belt or the like can be used.
  • the supply air 14, the exhaust air 15, and the connection ports 16, 17 may be cut with a female thread if necessary.
  • the present invention can stop the operating member such as the piston or vane at an arbitrary position or operate the operating member in the opposite direction and adjust the operating speed arbitrarily. 2 It provides a pneumatic operation device having a function that has not been provided at all, and a control device thereof, and can be widely used in fields requiring such a function.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Actuator (AREA)

Abstract

Appareil actionné par une pression pneumatique, telle qu'une pression pneumatique oscillante, comportant un cylindre pneumatique du type à piston et des ailettes. Cet appareil peut être déplacé dans une position quelconque et arrêté, ou déplacé en sens inverse, et on peut réguler selon les besoins sa vitesse de déplacement. On décrit également un appareil de commande (10) pour ledit appareil pneumatique, qui fonctionne de la manière suivante: lorsqu'une vanne de commande (40) tourne sous l'action d'un moyen approprié, un organe d'actionnement de l'appareil actionné par une pression pneumatique est déplacé, et une vanne entraînée (26), destinée à tourner proportionnellement à la quantité du mouvement de l'organe d'actionnement, tourne avec le même nombre de tours que la vanne de commande, ce qui permet d'obtenir une position de fonctionnement désirée simplement en régulant le fonctionnement de la vanne de commande (40).
PCT/JP1992/001505 1991-11-20 1992-11-18 Appareil actionne par une pression pneumatique et dispositif de commande relatif WO1993010359A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP32976491 1991-11-20
JP3/329764 1991-11-20
JP3693992A JPH05196008A (ja) 1991-11-20 1992-01-29 空気圧動作装置とその制御装置
JP4/36939 1992-01-29

Publications (1)

Publication Number Publication Date
WO1993010359A1 true WO1993010359A1 (fr) 1993-05-27

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ID=26376045

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1992/001505 WO1993010359A1 (fr) 1991-11-20 1992-11-18 Appareil actionne par une pression pneumatique et dispositif de commande relatif

Country Status (2)

Country Link
JP (1) JPH05196008A (fr)
WO (1) WO1993010359A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5646152A (en) * 1994-06-15 1997-07-08 Pfizer Inc. Methods of administering CRF antagonists
US6248753B1 (en) 1994-06-16 2001-06-19 Pfizer Inc Bicyclic compounds

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5076495A (fr) * 1973-11-09 1975-06-23
JPS5298877A (en) * 1976-02-16 1977-08-19 Kondo Jiyuutarou Rotary servo valve
JPH02296001A (ja) * 1989-04-19 1990-12-06 Hydraulik Gmbh 液圧制御装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5076495A (fr) * 1973-11-09 1975-06-23
JPS5298877A (en) * 1976-02-16 1977-08-19 Kondo Jiyuutarou Rotary servo valve
JPH02296001A (ja) * 1989-04-19 1990-12-06 Hydraulik Gmbh 液圧制御装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5646152A (en) * 1994-06-15 1997-07-08 Pfizer Inc. Methods of administering CRF antagonists
US6248753B1 (en) 1994-06-16 2001-06-19 Pfizer Inc Bicyclic compounds

Also Published As

Publication number Publication date
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