JP5777429B2 - ON / OFF VALVE DEVICE AND METHOD OF INSTALLING ON / OFF VALVE DEVICE - Google Patents

Description

    The present invention relates to an on-off valve device and an on-off valve device attachment method, and more particularly to an on-off valve device and an on-off valve device attachment method for facilitating installation work.

Conventionally, there is an on-off valve device that opens and closes a passage using a valve.
The valve of this on-off valve device is supported by a rotatable valve shaft, and the valve shaft is provided in a direction orthogonal to the longitudinal direction of the valve shaft via transmission means such as a rack gear and a gear. It is designed to rotate by means.
For example, the valve shaft drive means is configured to transmit the rotation of the servo motor to the transmission means via the speed reducer.
When the on-off valve device is attached to the passage, there is no obstacle in the vicinity of the passage, and there is a problem if the occupied portion of the valve shaft driving means provided in the direction orthogonal to the longitudinal direction of the valve shaft does not hinder. There is no.

    However, when an obstacle occurs in the occupied part of the valve shaft driving means, the above on-off valve device is provided with a fixed reference position for the positioning operation of the servo motor. However, there is a problem in that the obstacles in the vicinity of the passage have to be moved and the installation work is hindered.

    An object of this invention is to provide the on-off valve apparatus and the attachment method of an on-off valve apparatus made in consideration of the said problem.

The on-off valve device according to claim 1 is provided with a passage, a valve provided in the middle of the passage, for opening and closing the inside of the passage, a valve shaft attached to the valve and supporting the valve, and the valve shaft. A cover that covers the valve shaft on a side farther from the valve; a servomotor provided outside the cover; a speed reducer provided outside the cover and decelerating rotation of the servomotor; A rotation shaft of the speed reducer disposed in a direction orthogonal to a longitudinal direction of the valve shaft, a transmission means for transmitting the rotation shaft of the speed reducer to the valve shaft, and an end portion of the valve shaft on a side farther from the valve A first rotating body attached to the first rotating body, a locking member provided on the first rotating body, a base provided on the cover, and a detachably attached to the base. A male screw body that regulates movement, and the male screw body is attached. Four female screw portions are formed on the base, and the four female screw portions are first, second, and second clockwise when viewed from the end of the valve shaft on the side farther from the valve. 3. It is comprised by the 4th internal thread part, and is arrange | positioned at equal intervals on the same periphery, makes the said external thread body latch the said 1st internal thread part, and makes the said servomotor the said securing member The male screw body is rotated in a direction in which the male screw body comes into contact (referred to as “first rotation”), and then the locking member is rotated by 90 ° in a direction away from the male screw body (see “second rotation”). Control means for controlling the servo motor so that the valve is fully closed in the passage during the first rotation, and the valve is in the passage during the second rotation. Is adjusted to be fully open.

    According to a second aspect of the present invention, there is provided the on-off valve device according to the first aspect, wherein the transmission means engages with a first hypoid gear provided on the rotating shaft and a first hypoid gear provided on the valve shaft. Hypoid gear.

According to a third aspect of the present invention, there is provided a method for attaching the on-off valve device, a passage, a valve provided in the middle of the passage, for opening and closing the passage, a valve shaft attached to the valve and supporting the valve, A cover body that covers the valve shaft on the far side of the valve shaft from the valve, a servo motor that is provided outside the cover body, and a rotation motor that is provided outside the cover body and decelerates rotation of the servo motor. From the speed reducer, the rotational shaft of the speed reducer arranged in a direction orthogonal to the longitudinal direction of the valve shaft, the transmission means for transmitting the rotational shaft of the speed reducer to the valve shaft, and the valve of the valve shaft A first rotating body attached to the far end, a locking member provided in the first rotating body, a base provided in the cover body, and a detachably attached to the base; A male screw body for regulating the movement of the locking member, Four female screw portions to which the screw body is attached are formed on the base, and these four female screw portions are first, clockwise when viewed from the end of the valve shaft on the side farther from the valve. It is composed of second, third, and fourth female screw portions and is arranged at equal intervals on the same circumference, and the male screw body is engaged with the first female screw portion, and the servo motor is The male screw body is rotated in a direction in contact with the locking member (referred to as “first rotation”), and then the locking member is rotated by 90 ° in a direction away from the male screw body (“ A control means for controlling the servo motor so that the valve is fully closed in the first rotation, and the valve is closed in the second rotation. Is adjusted so that the inside of the passage is fully opened, and the first female screw portion is connected to the male screw body. When the servo motor and the speed reducer are to be moved to a position rotated clockwise by 90 ° when viewed from the end of the valve shaft on the side farther from the valve from the locked state, together with the base, The servo motor and the speed reducer are rotated 90 ° clockwise as viewed from the end of the valve shaft farther from the valve, and then the male screw body is removed from the first female screw portion. When viewed from the end of the shaft farther from the valve, the valve is rotated 90 ° counterclockwise, and the valve is rotated 90 ° counterclockwise before or after rotating, The servo motor is locked in the female screw portion, and the servo motor is rotated by the control means in a direction in which the male screw body is brought into contact with the locking member (referred to as “first rotation”). The member is rotated 90 ° in the direction away from the male screw body (“second rotation "Hereinafter) and controls the servo motor so that.

According to a fourth aspect of the present invention, there is provided an on-off valve device mounting method comprising: a passage; a valve provided in the middle of the passage; for opening and closing the passage; and a valve shaft attached to the valve and supporting the valve; A cover body that covers the valve shaft on the far side of the valve shaft from the valve, a servo motor that is provided outside the cover body, and a rotation motor that is provided outside the cover body and decelerates rotation of the servo motor. From the speed reducer, the rotational shaft of the speed reducer arranged in a direction orthogonal to the longitudinal direction of the valve shaft, the transmission means for transmitting the rotational shaft of the speed reducer to the valve shaft, and the valve of the valve shaft A first rotating body attached to the far end, a locking member provided in the first rotating body, a base provided in the cover body, and a detachably attached to the base; A male screw body for regulating the movement of the locking member, Four female screw portions to which the screw body is attached are formed on the base, and these four female screw portions are first, clockwise when viewed from the end of the valve shaft on the side farther from the valve. It is composed of second, third, and fourth female screw portions and is arranged at equal intervals on the same circumference, and the male screw body is engaged with the first female screw portion, and the servo motor is The male screw body is rotated in a direction in contact with the locking member (referred to as “first rotation”), and then the locking member is rotated by 90 ° in a direction away from the male screw body (“ A control means for controlling the servo motor so that the valve is fully closed in the first rotation, and the valve is closed in the second rotation. Is adjusted so that the inside of the passage is fully opened, and the first female screw portion is connected to the male screw body. When the servo motor and the speed reducer are to be moved to a position rotated 90 ° counterclockwise when viewed from the end of the valve shaft on the side farther than the valve from the locked state, together with the base, The servo motor and the speed reducer are rotated by 90 ° counterclockwise when viewed from the end of the valve shaft farther from the valve, and then the male screw body is removed from the first female screw portion, When viewed from the end of the valve shaft on the side farther from the valve, the valve is rotated 90 ° clockwise, and the male screw body is inserted into the second screw body before or after rotating the valve 90 ° clockwise. The servo motor is locked in the female screw portion, and the servo motor is rotated by the control means in a direction in which the male screw body is brought into contact with the locking member (referred to as “first rotation”). The member is rotated 90 ° in the direction away from the male screw body (“second rotation "Hereinafter) and controls the servo motor so that.

According to a fifth aspect of the present invention, there is provided an on-off valve device mounting method comprising: a passage; a valve provided in the middle of the passage; for opening and closing the passage; and a valve shaft attached to the valve and supporting the valve; A cover body that covers the valve shaft on the far side of the valve shaft from the valve, a servo motor that is provided outside the cover body, and a rotation motor that is provided outside the cover body and decelerates rotation of the servo motor. From the speed reducer, the rotational shaft of the speed reducer arranged in a direction orthogonal to the longitudinal direction of the valve shaft, the transmission means for transmitting the rotational shaft of the speed reducer to the valve shaft, and the valve of the valve shaft A first rotating body attached to the far end, a locking member provided in the first rotating body, a base provided in the cover body, and a detachably attached to the base; A male screw body for regulating the movement of the locking member, Four female screw portions to which the screw body is attached are formed on the base, and these four female screw portions are first, clockwise when viewed from the end of the valve shaft on the side farther from the valve. It is composed of second, third, and fourth female screw portions and is arranged at equal intervals on the same circumference, and the male screw body is engaged with the first female screw portion, and the servo motor is The male screw body is rotated in a direction in contact with the locking member (referred to as “first rotation”), and then the locking member is rotated by 90 ° in a direction away from the male screw body (“ A control means for controlling the servo motor so that the valve is fully closed in the first rotation, and the valve is closed in the second rotation. Is adjusted so that the inside of the passage is fully opened, and the first female screw portion is connected to the male screw body. When the servo motor and the speed reducer are to be moved to a position rotated 180 ° counterclockwise when viewed from the end of the valve shaft farther from the valve than the locked state, together with the base, The servo motor and the speed reducer are rotated 180 ° counterclockwise when viewed from the end of the valve shaft farther from the valve, and then the male screw body is removed from the first female screw portion, When viewed from the end of the valve shaft on the side farther from the valve, the valve is rotated 180 ° clockwise, and the male screw body is moved to the third screw before or after rotating the valve 180 ° clockwise. The servo motor is locked in the female screw portion, and the servo motor is rotated by the control means in a direction in which the male screw body is brought into contact with the locking member (referred to as “first rotation”). The member is rotated 90 ° in a direction away from the male screw body (“ Wherein the) so that that the second rotation "is intended to control the servo motor.

According to a sixth aspect of the present invention, there is provided a method for attaching the on-off valve device, a passage, a valve provided in the middle of the passage, for opening and closing the passage, and a valve shaft attached to the valve and supporting the valve. A cover body that covers the valve shaft on the far side of the valve shaft from the valve, a servo motor that is provided outside the cover body, and a rotation motor that is provided outside the cover body and decelerates rotation of the servo motor. From the speed reducer, the rotational shaft of the speed reducer arranged in a direction orthogonal to the longitudinal direction of the valve shaft, the transmission means for transmitting the rotational shaft of the speed reducer to the valve shaft, and the valve of the valve shaft A first rotating body attached to the far end, a locking member provided in the first rotating body, a base provided in the cover body, and a detachably attached to the base; A male screw body for regulating the movement of the locking member, Four female screw portions to which the screw body is attached are formed on the base, and these four female screw portions are first, clockwise when viewed from the end of the valve shaft on the side farther from the valve. It is composed of second, third, and fourth female screw portions and is arranged at equal intervals on the same circumference, and the male screw body is engaged with the first female screw portion, and the servo motor is The male screw body is rotated in a direction in contact with the locking member (referred to as “first rotation”), and then the locking member is rotated by 90 ° in a direction away from the male screw body (“ A control means for controlling the servo motor so that the valve is fully closed in the first rotation, and the valve is closed in the second rotation. Is adjusted so that the inside of the passage is fully opened, and the first female screw portion is connected to the male screw body. When it is desired to move the servo motor and the speed reducer to a position rotated clockwise by 180 ° when viewed from the end of the valve shaft on the side farther from the valve from the locked state, together with the base, The servo motor and the speed reducer are rotated 180 ° clockwise as viewed from the end of the valve shaft farther from the valve, and then the male screw body is removed from the first female screw portion. When viewed from the end of the shaft on the side farther from the valve, the valve is rotated 180 ° counterclockwise, and the valve is rotated 180 ° counterclockwise before or after rotating, The servo motor is locked in the female screw portion, and the servo motor is rotated by the control means in a direction in which the male screw body is brought into contact with the locking member (referred to as “first rotation”). The member is rotated 90 ° in a direction away from the male screw body (“ Wherein the second rotation "hereinafter) so that it controls the servomotor.

According to the on-off valve device of the first aspect, four female screw portions to which the male screw body is attached are formed on the base, and these four female screw portions are formed from the end portion of the valve shaft on the side farther from the valve. As seen, it is composed of the first, second, third, and fourth female screw portions in the clockwise direction, and is arranged at equal intervals on the same circumference, so that there is an obstacle near the passage. Corresponding to a certain case, the speed reducer having a rotating shaft positioned in a direction orthogonal to the longitudinal direction of the valve shaft, the position of the servo motor as a drive source of the speed reducer can be moved in four directions, and control means Thus, the opening and closing of the valve can be controlled.
For example, the servo motor and the speed reducer are placed at a position rotated 90 ° clockwise as viewed from the end of the valve shaft far from the valve from the state in which the male screw body is locked to the first female screw portion. When it is desired to move, together with the base, the servo motor and the speed reducer are rotated 90 ° clockwise as viewed from the end of the valve shaft farther from the valve, and then the male screw body is moved to the first The valve shaft is rotated 90 ° counterclockwise when viewed from the end of the valve shaft farther from the valve, and the valve is rotated counterclockwise by 90 ° before or after rotation, The male screw body is locked to the fourth female screw portion, and the servo motor is rotated by the control means in a direction in which the male screw body is brought into contact with the locking member (“first rotation”). After that, the locking member is rotated 90 ° in a direction away from the male screw body. It is possible to control the servo motor (the "second rotation" hereinafter) so that.
Further, the servo motor and the speed reducer are moved to a position rotated 90 ° counterclockwise when viewed from the end of the valve shaft far from the valve from the state in which the male screw body is engaged with the first female screw portion. When moving the servo motor and speed reducer together with the base from the end of the valve shaft farther from the valve, rotate it 90 ° counterclockwise, and then move the male threaded body to the first female threaded part. The valve is rotated 90 ° clockwise as viewed from the end of the valve shaft farther from the valve, and the male screw body is moved to the second female screw portion before or after being rotated 90 ° clockwise. The servo motor is rotated by the control means in a direction in which the male screw body comes into contact with the locking member (referred to as “first rotation”), and then moved away from the male screw body of the locking member. It is possible to control the servo motor so that it is rotated 90 ° (referred to as “second rotation”). That.
In addition, the servomotor and the speed reducer are moved to a position rotated 180 ° counterclockwise when viewed from the end of the valve shaft farther than the valve from the state where the male screw body is engaged with the first female screw portion. When moving the servo motor and speed reducer together with the base from the end of the valve shaft farther from the valve, rotate it 180 ° counterclockwise, and then move the male threaded body to the first female threaded part. The valve shaft is rotated 180 ° clockwise as viewed from the end of the valve shaft farther from the valve, and the male screw body is connected to the third female screw portion before or after rotating the valve 180 ° clockwise. The servo motor is rotated by the control means in a direction in which the male screw body comes into contact with the locking member (referred to as “first rotation”), and then the locking member moves away from the male screw body. Also, from the state where the male screw body is locked to the first female screw part, When moving the servo motor and reducer to the position rotated 180 ° clockwise as viewed from the far end, move the servo motor and reducer together with the base from the far end of the valve shaft valve. Look, rotate clockwise 180 °, then remove the male threaded body from the first female threaded portion and rotate the valve 180 ° counterclockwise when viewed from the end of the valve shaft farther from the valve. Before or after rotating the valve counterclockwise by 180 °, the male screw body is locked to the third female screw portion, and the servo motor is rotated by the control means in the direction in which the male screw body comes into contact with the locking member. The servo motor is controlled so that the locking member is rotated 90 ° in a direction away from the male screw body (referred to as “second rotation”). Can do.

    Further, according to the method for mounting the on-off valve device according to claim 3, the timepiece is viewed from the end far from the valve of the valve shaft from the state where the male screw body is engaged with the first female screw portion. If you want to move the servo motor and reducer to a position rotated 90 ° around, rotate the servo motor and reducer 90 ° clockwise together with the base as viewed from the end of the valve shaft farther from the valve. Then, remove the male threaded body from the first female threaded part, rotate the valve 90 ° counterclockwise as viewed from the end of the valve shaft farther from the valve, and rotate the valve 90 ° counterclockwise. Before or after rotation, the male screw body is locked to the fourth female screw portion, and the servo motor is rotated by the control means in a direction in which the male screw body is brought into contact with the locking member ("first rotation" After that, the locking member is rotated 90 ° in a direction away from the male screw body (referred to as “second rotation”). ) It is possible to control the servo motor so that.

    Further, according to the method for mounting the on-off valve device according to the fourth aspect, from the state where the male screw body is locked to the first female screw portion, the valve shaft is seen from the end portion on the side farther from the valve. When you want to move the servo motor and reducer to a position rotated 90 ° clockwise, see the servo motor and reducer together with the base from the end of the valve shaft farther from the valve, 90 ° counterclockwise. After that, remove the male screw body from the first female screw part, see the end of the valve shaft far from the valve, rotate the valve 90 ° clockwise, and rotate the valve 90 ° clockwise. Before or after rotation, the male screw body is locked to the second female screw portion, and the servo motor is rotated by the control means in a direction in which the male screw body is brought into contact with the locking member ("first rotation" After that, the locking member is rotated 90 ° in a direction away from the male screw body (referred to as “second rotation”). ) It is possible to control the servo motor so that.

    Further, according to the method for mounting the on-off valve device according to the fifth aspect, from the state where the male screw body is locked to the first female screw portion, the valve shaft is seen from the end portion on the side farther from the valve. When moving the servo motor and reducer to the position rotated 180 ° clockwise, 180 ° counter-clockwise when the servo motor and reducer are viewed from the end of the valve shaft farther from the valve. Rotate, then remove the male screw body from the first female screw part, see the end of the valve shaft farther from the valve, rotate the valve 180 ° clockwise, and rotate the valve 180 ° clockwise Before or after rotation, the male screw body is locked to the third female screw portion, and the servo motor is rotated by the control means in a direction in which the male screw body is brought into contact with the locking member ("first rotation" After that, the locking member is turned 90 ° in the direction away from the male screw body (“second rotation”). It is possible to control the servo motor "hereinafter) so that.

    Further, according to the method for attaching the on-off valve device according to the sixth aspect, the watch is viewed from the end of the valve shaft farther from the valve from the state where the male screw body is engaged with the first female screw portion. If you want to move the servo motor and reducer to a position rotated 180 ° around, rotate the servo motor and reducer 180 ° clockwise together with the base when viewed from the end of the valve shaft farther from the valve. Then, remove the male threaded body from the first female threaded part, and rotate the valve 180 ° counterclockwise when viewed from the end of the valve shaft farther from the valve, and rotate the valve 180 ° counterclockwise. Before or after rotation, the male screw body is locked to the third female screw portion, and the servo motor is rotated by the control means in a direction in which the male screw body is brought into contact with the locking member ("first rotation" After that, the locking member is turned 90 ° in the direction away from the male screw body (“second rotation”). It is possible to control the servo motor "hereinafter) so that.

FIG. 1 is a schematic plan view of an on-off valve device according to an embodiment of the present invention. FIG. 2 is a schematic perspective view of the on-off valve device of FIG. FIG. 3 is a schematic view seen from the direction of arrow A in FIG. 4 is a schematic cross-sectional view taken along line 4-4 of FIG. FIG. 5 is a schematic partial cross-sectional view showing the transmission means with the cover removed from the on-off valve device of FIG. FIG. 6 is a schematic view seen from the direction of arrow C in FIG. FIG. 7 is a schematic diagram showing the operating state of FIG. FIG. 8 is a schematic plan view showing a state where the on-off valve device of FIG. 1 is not attached due to an obstacle. FIG. 9 is a schematic plan view showing a state in which the speed reducer and the servo motor of the on-off valve device of FIG. 8 are moved. FIG. 10 is a schematic partially enlarged plan view showing a part of FIG. 9 in an enlarged manner. FIG. 11 is a schematic perspective view of the on-off valve device of FIG. 12 to 15 show one mode of moving the speed reducer and servo motor of the on-off valve device of FIG. 8, and FIG. 12 is a schematic view showing a state in which the base of FIG. 6 is rotated 90 ° clockwise. FIG. FIG. 13 is a schematic view showing a state before the male screw body of FIG. 12 is removed and the removed male screw body is locked to the fourth female screw portion. FIG. 14 is a schematic view showing a state where the valve of FIG. 13 is rotated 90 ° counterclockwise. FIG. 15 is a schematic view of the operating state of the valve of FIG. 16 to 19 show one mode of moving the speed reducer and servo motor of the on-off valve device of FIG. 8, and FIG. 16 is a schematic diagram showing a state in which the base of FIG. 6 is rotated 90 ° counterclockwise. It is a target figure. FIG. 17 shows a state before the male screw body of FIG. 16 is removed and the removed male screw body is locked to the second female screw portion, and the valve of FIG. 16 is rotated 90 ° clockwise. FIG. FIG. 18 is a schematic view showing a state in which the removed male screw body of FIG. 17 is locked to the second female screw portion. FIG. 19 is a schematic view of the operating state of the valve of FIG. 20 to 23 show one mode of moving the speed reducer and servo motor of the on-off valve device of FIG. 8 (the base is in the state of FIG. 6). FIG. 20 is a counterclockwise rotation of the base of FIG. It is the schematic of the state rotated to 180 degree. FIG. 21 is a state before the male screw body of FIG. 20 is removed and the removed male screw body is locked to the third female screw portion, and the valve of FIG. 20 is rotated 180 ° clockwise. FIG. FIG. 22 is a schematic view showing a state in which the removed male screw body of FIG. 21 is locked to the third female screw portion. FIG. 23 is a schematic view of the operating state of the valve of FIG.

An on-off valve device and an on-off valve device mounting method according to an embodiment of the present invention will be described with reference to the drawings.
K shown in FIG. 1 is an on-off valve device, and the on-off valve device K is interposed in a fluid supply path as a gas introduction valve or an exhaust valve for continuously supplying and stopping fluid in a vacuum line, for example. It is what is used. The valve 5 is a butterfly valve, for example, and an O-ring 1 is mounted as a seal member around the valve.

2 is a passage, and the passage 2 includes a first passage 21 and a second passage 22, and the passage 2 and the on-off valve device K include a flange portion 21 a of the first passage 21 and a second passage 22. The annular portion 3 of the on-off valve device K is interposed between the flange portion 22a and connected by fastening means 4 using bolts and nuts. 3a is a support part which supports the annular part 3, and the support part 3a and the annular part 3 are united.
The valve 5 is provided in the middle of the passage 2 and opens and closes the passage 2. The shape of the valve 5 is, for example, a substantially disk shape. The valve 5 is supported by a valve shaft 6 attached to the valve 5.

5 is a cover body that covers the valve shaft 6 on the side farther than the valve 5 of the valve shaft 6, 7 a is an attachment base of the cover body 7, and the cover body 7 and the support part 3 a are male screws 8. It comes to be connected with.
Further, 11 shown in FIG. 5 is a servo motor provided outside the cover body 7, 12 is a speed reducer that decelerates the rotation of the servo motor 11, and the speed reducer 12 is the cover body 7 as with the servo motor 11. Is provided outside. The rotating shaft 12 a of the speed reducer 12 rotates in a direction orthogonal to the longitudinal direction of the valve shaft 6.
The rotating shaft 12a of the speed reducer 12 is transmitted to the valve shaft 6 by the transmitting means. The transmission means is, for example, a first hypoid gear 13a provided on the rotary shaft 12a and a second hypoid gear 13b meshed with the first hypoid gear 13a provided on the valve shaft 6.

Further, 14 shown in FIG. 6 is a first rotating body attached to the end of the valve shaft 6 on the side far from the valve 5, and 14a is a locking member provided on the first rotating body. Reference numeral 15 denotes a second rotating body attached to the end of the valve shaft 6 on the side farther from the valve 5, and the second rotating body 15 is provided with first and second slits 15a and 15b. ing. Reference numeral 16 denotes a photosensor. The photosensor 16 detects a state in which the valve 5 is fully closed in the passage 2 (see FIG. 6) through the first slit 15a.
Then, the male screw body 17 shown in FIG. 6 is locked to the first female screw portion 18a, and the servo motor 11 is rotated in the direction in which the male screw body 17 is brought into contact with the locking member 14a ("the first rotation" After that, the servo motor 11 is controlled so that the locking member 14a is rotated 90 ° in a direction away from the male screw body 17 (referred to as “second rotation”) (see FIG. 7). I have to.
The first rotation for bringing the male screw body 17 into contact with the locking member 14a is an operation for obtaining a reference position (origin) when the servo motor 11 performs a positioning operation. For example, the male screw is applied to the locking member 14a. The position where the body 17 abuts is set as the origin, and the servo motor 11 is controlled by the control means 100 (see FIG. 2). In the first rotation, the valve 5 is adjusted to be fully closed in the passage 2 (see FIG. 6), and in the second rotation, the valve 5 is adjusted to be fully opened in the passage 2 (see FIG. 7). ing.

Further, 18 shown in FIG. 5 is a base provided on the cover body 7, and the male screw body 17 described above is detachably attached to the base 18 and restricts the movement of the locking member 14a.
The male screw body 17 is attached by being screwed into one of four female screw portions provided on the base 18.
The four female threaded portions are first, second, third, and fourth female threaded portions 18a, 18b, 18c, clockwise when viewed from the end of the valve shaft 6 on the side farther from the valve 5. 18d and arranged at equal intervals (90 °) on the same circumference. In FIG. 6, the male screw body 17 is screwed into the first female screw portion 18a.
In addition, 19 and 20 shown in FIG. 5 are bearings, and 21 is a cover.

(When the base 18 is rotated 90 ° clockwise from the state of FIG. 6)
As shown in FIG. 8, there is an obstacle 200 in the vicinity of the passage 2, and the opening / closing valve device K may not be attached to the passage 2 unless the obstacle 200 is moved.
In such a case, in the on-off valve device K (an on-off valve device attachment method) of this embodiment, the on-off valve device K is attached to the passage 2 without moving the obstacle 200 by moving the servo motor 11 or the like. (See FIGS. 9-11).
That is, when the servo motor 11 and the speed reducer 12 are to be moved to a position rotated 90 ° clockwise as viewed from the end of the valve shaft 6 far from the valve 5, first, the male screw 8 is removed, The state where the attachment base 7a of the cover 7 and the support portion 3a are uncoupled and the photosensor 16 is removed from the base 18 and the male screw body 17 is engaged with the first female screw portion 17a (see FIG. 6). When the photosensor 16 is removed from the base 18), the servomotor 11 and the speed reducer 12 together with the base 18 are rotated 90 ° clockwise as viewed from the end of the valve shaft 6 far from the valve 5 (see FIG. 12), after that, the male screw body 17 is removed from the first female screw portion 18a (see FIG. 13), and the valve 5 is turned counterclockwise by 90 when viewed from the end of the valve shaft 6 farther from the valve 5. Rotate and turn valve 5 90 ° counterclockwise Or after the rotation, locking the male screw member 17 into the fourth female threaded portion 18 d (see FIG. 14).
After locking, the photo sensor 16 is attached to the base 18 and the attachment base 7a of the cover 7 and the support portion 3a are connected by the male screw 8. After the connection, the servo motor 11 is rotated by the control means 100 in a direction in which the male screw body 17 is brought into contact with the locking member 14a (referred to as “first rotation”, see FIG. 14), and then the locking member 14a. The servomotor 11 is controlled so as to rotate 90 ° in a direction away from the male screw body 17 (referred to as “second rotation”, see FIG. 15).

(When the base 18 is rotated 90 ° counterclockwise from the state of FIG. 6)
Further, from the state where the male screw body 17 is engaged with the first female screw portion 18a (the state shown in FIG. 6), 90 ° counterclockwise when viewed from the end of the valve shaft 6 on the side farther from the valve 5. When it is desired to move the servo motor 11 and the speed reducer 12 to the rotated positions (see FIGS. 16 to 19), the male screw 8 is removed and the cover 7 is attached to the mounting base 7a and supported in the same manner as in the above embodiment. From the state where the photosensor 16 is removed from the base 18 and the male screw body 17 is locked to the first female screw portion 17a, the servomotor 11 and the speed reducer 12 together with the base 18 are released. Is rotated 90 ° counterclockwise when viewed from the end of the valve shaft 6 farther from the valve 5 (see FIG. 16), and then the male screw body 17 is removed from the first female screw portion 18a (FIG. 17). See) from the end of the valve stem 6 farther from the valve 5, the valve 5 The valve 5 is rotated 90 ° clockwise (see FIG. 18), and before or after the valve 5 is rotated 90 ° clockwise, the male screw body 17 is locked to the second female screw portion 18b (after locking, the photosensor 16 is attached to the base 18, and the attachment base 7 a of the cover 7 is connected to the support portion 3 a by the male screw 8.), And the servo motor 11 is attached to the locking member 14 a by the control means 100. Rotate in the abutting direction (referred to as “first rotation”, see FIG. 18), and then rotate 90 ° in the direction in which the locking member 14a moves away from the male screw body 17 (“second rotation”). The servo motor 11 is controlled as shown in FIG.

(When the base 18 is rotated 180 ° counterclockwise from the state of FIG. 6)
Also, from the state where the male screw body 17 is engaged with the first female screw portion 18a (the state shown in FIG. 6), 180 ° counterclockwise when viewed from the end of the valve shaft 6 on the side farther from the valve 5. When it is desired to move the servo motor 11 and the speed reducer 12 to the rotated positions (see FIGS. 20 to 23), the male screw 8 is removed and the cover 7 is attached to the mounting base 7a and supported in the same manner as in the above embodiment. From the state where the photosensor 16 is removed from the base 18 and the male screw body 17 is locked to the first female screw portion 17a, the servomotor 11 and the speed reducer 12 together with the base 18 are released. Viewed from the end of the valve shaft 6 farther from the valve 5 and rotated counterclockwise by 180 ° (see FIG. 20), then the male screw body 17 is removed from the first female screw portion 18a, and the valve shaft 6 as viewed from the end farther than 6 valve 5, turn valve 5 clockwise. The valve 5 is rotated 180 ° (see FIG. 21), and before or after the valve 5 is rotated 180 ° clockwise, the male screw body 17 is locked to the third female screw portion 18c (after locking, the photosensor 16 is used as a base). 18, and the attachment base 7 a of the cover body 7 and the support portion 3 a are connected by the male screw 8.), And the control means 100 causes the servomotor 11 to contact the locking member 14 a with the male screw 17. (Referred to as “first rotation”, see FIG. 22), and then the locking member 14a is rotated 90 ° in a direction away from the male screw body 17 (referred to as “second rotation”). 23), the servo motor 11 is controlled.

(When the base 18 is rotated 180 ° clockwise from the state shown in FIG. 6)
Note that the servo motor is moved to a position rotated 180 ° clockwise as viewed from the end of the valve shaft 6 farther from the valve 5 from the state where the male screw body 17 is engaged with the first female screw portion 18a. 11 and the speed reducer 12 are moved counterclockwise when viewed from the end far from the valve 5 of the valve shaft 6 from the state where the male screw body 17 is engaged with the first female screw portion 18a. This is the same as the case where the servo motor 11 and the speed reducer 12 are to be moved to a position rotated by 180 ° (see FIGS. 20 to 23), and will be described below with reference to FIGS.
From the state where the male screw body 17 is engaged with the first female screw portion 18a (the state shown in FIG. 6), the valve shaft 6 is rotated 180 ° clockwise as viewed from the end far from the valve 5. When the servo motor 11 and the speed reducer 12 are to be moved to the positions, the male screw 8 is removed to release the connection state between the mounting base 7a of the cover 7 and the support portion 3a, as in the above-described embodiment. From the state where the sensor 16 is removed from the base 18 and the male screw body 17 is locked to the first female screw portion 17a, the servo motor 11 and the speed reducer 12 together with the base 18 are located on the side farther than the valve 5 of the valve shaft 6. When viewed from the end, it is rotated clockwise by 180 ° (see FIG. 20), and then the male threaded body 17 is removed from the first female threaded part 18a and viewed from the end of the valve shaft 6 farther from the valve 5. Then, the valve 5 is rotated 180 ° counterclockwise (see FIG. 21). Before or after the valve 5 is rotated 180 ° counterclockwise, the male screw body 17 is locked to the third female screw portion 18c (after locking, the photosensor 16 is attached to the base 18 and the male screw 8 is used. , The attachment base 7a of the cover 7 and the support portion 3a are connected.) The servo motor 11 is rotated by the control means 100 in a direction in which the male screw body 17 is brought into contact with the locking member 14a ("the first" Servo motor 11 so that the locking member 14a is rotated 90 ° in a direction away from the male screw body 17 (referred to as “second rotation”, see FIG. 23). To control.

K on-off valve device 2 passage 5 valve 6 valve shaft 7 cover 11 servo motor 12 speed reducer 12a rotational shaft of the speed reducer 14 first rotating body 14a locking member 17 male screw body 18a first female screw portion 18b second Female screw portion 18c third female screw portion 18d fourth female screw portion

Claims (6)

A passage,
A valve provided in the middle of the passage to open and close the passage;
A valve shaft attached to the valve and supporting the valve;
A cover that covers the valve stem on the far side of the valve stem from the valve;
A servo motor provided on the outside of the cover;
A speed reducer that is provided outside the cover and decelerates rotation of the servo motor;
A rotating shaft of the speed reducer disposed in a direction orthogonal to the longitudinal direction of the valve shaft;
Transmission means for transmitting the rotation shaft of the speed reducer to the valve shaft;
A first rotating body attached to an end of the valve shaft farther from the valve;
A locking member provided on the first rotating body;
A base provided on the cover;
A detachably attached to the base, and a male screw body for regulating the movement of the locking member,
Four female screw parts to which the male screw body is attached are formed on the base,
The four female screw portions are configured by first, second, third, and fourth female screw portions in a clockwise direction when viewed from the end of the valve shaft on the side farther from the valve. Arranged at equal intervals on the same circumference,
The male screw body is locked to the first female screw portion, and the servo motor is rotated in a direction in which the male screw body is brought into contact with the locking member (referred to as “first rotation”). A control means for controlling the servo motor so that the locking member is rotated 90 ° in a direction away from the male screw body (referred to as “second rotation”);
The on-off valve device, wherein the valve is adjusted so that the valve is fully closed in the first rotation, and the valve is fully opened in the second rotation. The on-off valve device according to claim 1, wherein the transmission means is a first hypoid gear provided on the rotating shaft and a second hypoid gear engaged with the first hypoid gear provided on the valve shaft. A passage,
A valve provided in the middle of the passage to open and close the passage;
A valve shaft attached to the valve and supporting the valve;
A cover that covers the valve stem on the far side of the valve stem from the valve;
A servo motor provided on the outside of the cover;
A speed reducer that is provided outside the cover and decelerates rotation of the servo motor;
A rotating shaft of the speed reducer disposed in a direction orthogonal to the longitudinal direction of the valve shaft;
Transmission means for transmitting the rotation shaft of the speed reducer to the valve shaft;
A first rotating body attached to an end of the valve shaft farther from the valve;
A locking member provided on the first rotating body;
A base provided on the cover;
A detachably attached to the base, and a male screw body for regulating the movement of the locking member,
Four female screw parts to which the male screw body is attached are formed on the base,
The four female screw portions are configured by first, second, third, and fourth female screw portions in a clockwise direction when viewed from the end of the valve shaft on the side farther from the valve. Arranged at equal intervals on the same circumference,
The male screw body is locked to the first female screw portion, and the servo motor is rotated in a direction in which the male screw body is brought into contact with the locking member (referred to as “first rotation”). A control means for controlling the servo motor so that the locking member is rotated 90 ° in a direction away from the male screw body (referred to as “second rotation”);
In the first rotation, the valve is adjusted to be fully closed in the passage, and in the second rotation, the valve is adjusted to be fully open in the passage,
From the state in which the male screw body is locked to the first female screw portion, the servo motor and the valve shaft are rotated 90 ° clockwise as viewed from the end of the valve shaft farther from the valve. When it is desired to move the speed reducer, together with the base, the servo motor and the speed reducer are rotated 90 ° clockwise as viewed from the end of the valve shaft farther from the valve, and then the male screw body Is removed from the first female threaded portion, viewed from the end of the valve shaft farther from the valve, the valve is rotated 90 ° counterclockwise, and the valve is rotated 90 ° counterclockwise. Alternatively, after the rotation, the male screw body is locked to the fourth female screw portion, and the servo motor is rotated by the control means in a direction in which the male screw body is brought into contact with the locking member (" 1), and then the locking member is moved away from the male screw body. Mounting method for on-off valve and wherein the controller controls the servo motor direction is 90 ° rotated in so that (referred to as "second rotation"). A passage,
A valve provided in the middle of the passage to open and close the passage;
A valve shaft attached to the valve and supporting the valve;
A cover that covers the valve stem on the far side of the valve stem from the valve;
A servo motor provided on the outside of the cover;
A speed reducer that is provided outside the cover and decelerates rotation of the servo motor;
A rotating shaft of the speed reducer disposed in a direction orthogonal to the longitudinal direction of the valve shaft;
Transmission means for transmitting the rotation shaft of the speed reducer to the valve shaft;
A first rotating body attached to an end of the valve shaft farther from the valve;
A locking member provided on the first rotating body;
A base provided on the cover;
A detachably attached to the base, and a male screw body for regulating the movement of the locking member,
Four female screw parts to which the male screw body is attached are formed on the base,
The four female screw portions are configured by first, second, third, and fourth female screw portions in a clockwise direction when viewed from the end of the valve shaft on the side farther from the valve. Arranged at equal intervals on the same circumference,
The male screw body is locked to the first female screw portion, and the servo motor is rotated in a direction in which the male screw body is brought into contact with the locking member (referred to as “first rotation”). A control means for controlling the servo motor so that the locking member is rotated 90 ° in a direction away from the male screw body (referred to as “second rotation”);
In the first rotation, the valve is adjusted to be fully closed in the passage, and in the second rotation, the valve is adjusted to be fully open in the passage,
From the state in which the male threaded body is engaged with the first female threaded portion, the servomotor is rotated 90 ° counterclockwise when viewed from the end of the valve shaft on the side farther from the valve. When the speed reducer is to be moved, the servo motor and the speed reducer together with the base are rotated 90 ° counterclockwise when viewed from the end of the valve shaft farther from the valve, and then the male The screw body is removed from the first female screw portion, and viewed from the end of the valve shaft farther from the valve, the valve is rotated 90 ° clockwise, and the valve is rotated 90 ° clockwise. Alternatively, after the rotation, the male screw body is locked to the second female screw portion, and the servo motor is rotated by the control means in a direction in which the male screw body is brought into contact with the locking member (“first” 1), and then the locking member is moved away from the male screw body. Mounting method for on-off valve and wherein the controller controls the servo motor direction is 90 ° rotated in so that (referred to as "second rotation"). A passage,
A valve provided in the middle of the passage to open and close the passage;
A valve shaft attached to the valve and supporting the valve;
A cover that covers the valve stem on the far side of the valve stem from the valve;
A servo motor provided on the outside of the cover;
A speed reducer that is provided outside the cover and decelerates rotation of the servo motor;
A rotating shaft of the speed reducer disposed in a direction orthogonal to the longitudinal direction of the valve shaft;
Transmission means for transmitting the rotation shaft of the speed reducer to the valve shaft;
A first rotating body attached to an end of the valve shaft farther from the valve;
A locking member provided on the first rotating body;
A base provided on the cover;
A detachably attached to the base, and a male screw body for regulating the movement of the locking member,
Four female screw parts to which the male screw body is attached are formed on the base,
The four female screw portions are configured by first, second, third, and fourth female screw portions in a clockwise direction when viewed from the end of the valve shaft on the side farther from the valve. Arranged at equal intervals on the same circumference,
The male screw body is locked to the first female screw portion, and the servo motor is rotated in a direction in which the male screw body is brought into contact with the locking member (referred to as “first rotation”). A control means for controlling the servo motor so that the locking member is rotated 90 ° in a direction away from the male screw body (referred to as “second rotation”);
In the first rotation, the valve is adjusted to be fully closed in the passage, and in the second rotation, the valve is adjusted to be fully open in the passage,
From the state in which the male screw body is engaged with the first female screw portion, the servomotor is rotated 180 ° counterclockwise when viewed from the end of the valve shaft farther from the valve. When the speed reducer is to be moved, the servo motor and the speed reducer together with the base are rotated 180 ° counterclockwise when viewed from the end of the valve shaft farther from the valve, and then the male The screw body is removed from the first female screw portion, and when viewed from the end of the valve shaft farther from the valve, the valve is rotated 180 ° clockwise, and the valve is rotated 180 ° clockwise. Alternatively, after the rotation, the male screw body is locked to the third female screw portion, and the servo motor is rotated by the control means in a direction in which the male screw body is brought into contact with the locking member (“first” 1), and then the locking member is the male screw body. Mounting method for on-off valve and wherein the controller controls the servo motor direction is 90 ° rotated in so that (referred to as "second rotation") away. A passage,
A valve provided in the middle of the passage to open and close the passage;
A valve shaft attached to the valve and supporting the valve;
A cover that covers the valve stem on the far side of the valve stem from the valve;
A servo motor provided on the outside of the cover;
A speed reducer that is provided outside the cover and decelerates rotation of the servo motor;
A rotating shaft of the speed reducer disposed in a direction orthogonal to the longitudinal direction of the valve shaft;
Transmission means for transmitting the rotation shaft of the speed reducer to the valve shaft;
A first rotating body attached to an end of the valve shaft farther from the valve;
A locking member provided on the first rotating body;
A base provided on the cover;
A detachably attached to the base, and a male screw body for regulating the movement of the locking member,
Four female screw parts to which the male screw body is attached are formed on the base,
The four female screw portions are configured by first, second, third, and fourth female screw portions in a clockwise direction when viewed from the end of the valve shaft on the side farther from the valve. Arranged at equal intervals on the same circumference,
The male screw body is locked to the first female screw portion, and the servo motor is rotated in a direction in which the male screw body is brought into contact with the locking member (referred to as “first rotation”). A control means for controlling the servo motor so that the locking member is rotated 90 ° in a direction away from the male screw body (referred to as “second rotation”);
In the first rotation, the valve is adjusted to be fully closed in the passage, and in the second rotation, the valve is adjusted to be fully open in the passage,
From the state in which the male screw body is locked to the first female screw portion, the servo motor and the position where the valve shaft is rotated 180 ° clockwise as seen from the end of the valve shaft farther from the valve. When it is desired to move the speed reducer, together with the base, the servo motor and the speed reducer are rotated 180 ° clockwise as viewed from the end of the valve shaft farther from the valve, and then the male screw body Is removed from the first female threaded portion, viewed from the end of the valve shaft farther from the valve, the valve is rotated 180 ° counterclockwise, and the valve is rotated 180 ° counterclockwise. Alternatively, after the rotation, the male screw body is locked to the third female screw portion, and the servo motor is rotated by the control means in a direction in which the male screw body is brought into contact with the locking member (“first” 1), and then the locking member is the male screw body. Mounting method for on-off valve and wherein the controller controls the servo motor direction is 90 ° rotated in so that (referred to as "second rotation") away.

Images