CN101684866B - Electric actuator - Google Patents
Electric actuator Download PDFInfo
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- CN101684866B CN101684866B CN2009101738784A CN200910173878A CN101684866B CN 101684866 B CN101684866 B CN 101684866B CN 2009101738784 A CN2009101738784 A CN 2009101738784A CN 200910173878 A CN200910173878 A CN 200910173878A CN 101684866 B CN101684866 B CN 101684866B
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- 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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
- F16K37/0041—Electrical or magnetic means for measuring valve parameters
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- 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
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Control Of Position Or Direction (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
- Testing And Monitoring For Control Systems (AREA)
Abstract
The invention provides an electric actuator, which is capable of adopting measures in advance as a result of leaning in advance possible damage caused by immersion of rain water or change of installation position. An inclination angle sensor (11), arranged in a housing (12) of the electric actuator (100), measures the inclination angle, and calculates information (including inclination angle (theta), offset(delta1) relevant to a normal installation position, offset (delta2) relevant to an initial installation position, judging results (mark F1,F2) of normal/abnormal installation position) relating to the installation position according to the inclination angle, and sends the information to an outer controller(300).
Description
Technical field
The electric motor that the present invention relates to be used for actuating valve is stored in the electric actuator in the casing.
Background technique
All the time, electric actuator is used for the switching of employed rotary valves such as air-conditioning equipment and machinery and direct-acting valve.This electric actuator normally is stored in various electric assemblys such as electric motor and reducing gear and mechanical part in the casing, and output shaft is outstanding from the casing of depositing these various electric assemblys and mechanical part.In addition, in casing, be provided with armoured conduit, this armoured conduit is used to introduce and external power supply wire connecting and the signaling line that is used for delivery valve aperture signal.
In addition, this electric actuator is installed on the valve that is provided with spool, by integrated with as electric control valve.At this moment, the valve shaft of the output shaft of electric actuator and spool (axle of axle fixed spool) links via coupling.In addition, the casing of electric actuator by bolt in valve.
In addition, in this electric actuator, becoming with valve integratedization under the situation of electric control valve, can consider to be arranged at outside the room, thereby adopting the water proof structure in the immersion casings such as preventing rainwater.For example, adopt following water proof structure: electric actuator is installed in the top of valve, considers that rainwater etc. falls from the top of casing, promptly considers to utilize the end face of casing to accept rainwater, and does not establish opening portion (for example, with reference to patent documentation 1) at the end face of casing.
Patent documentation 1: real the opening of Japan put down the 2-25785 communique
Patent documentation 2: TOHKEMY 2000-337551 communique
Patent documentation 3: japanese kokai publication hei 10-61809 communique
Patent documentation 4: japanese kokai publication hei 8-285131 communique
Patent documentation 5: japanese kokai publication hei 5-172571 communique
Patent documentation 6: TOHKEMY 2003-287421 communique
Patent documentation 7: japanese kokai publication hei 8-334327 communique
Patent documentation 8: TOHKEMY 2000-97695 communique
Patent documentation 9: japanese kokai publication hei 7-35548 communique
Yet, at the scene that is provided with above-mentioned electric control valve, since the height of the pipe arrangement of this electric control valve of installation and the restriction in space, the below of the valve of having to sometimes electric actuator is installed in.In this case; The bottom surface that becomes casing is towards the top, to accept the structure of rainwater towards the bottom surface of the casing of top; Therefore rainwater gets into interior through the gap of the gap of output shaft and casing or armoured conduit and electric wire, thereby makes the parts deterioration of inside.
In addition; Even at the scene that electric control valve has been installed with normal state; At the far-reaching scene of vibration (from the vibration of outside and the vibration of flowing fluid in valve), fixedly the bolt of casing becomes flexible because of vibration and makes the mounting position of electric actuator from original state variation take place.If this state is ignored, the output shaft that then is easy to generate electric actuator is with valve shaft generation flexural stress and be out of shape, perhaps the infringement of breakage etc.
All the time, the mounting position of electric actuator etc. does not receive particular concern, but turns round when bad at electric actuator, when going to on-the-spot maintenance man to confirm, knows that the bad reason of running is that the installation of electric actuator is unusual.
In addition, in patent documentation 2, humidity transducer is set in casing, so that detect the immersion of water outlet in casing.At this moment, if after in the water immersion casing, the temperature in the casing rises, then become the state that high temperature wets more in the casing.Utilize humidity transducer to detect the state that this high temperature wets more, immersed water in the casing and be judged as.Yet, in the method, immersed rainwater in the casing, yet can not know that in advance rainwater might immerse though can detect.And, in casing, become till the many wet states of high temperature, can't detect rainwater and enter in the casing.In addition, do not take the countermeasure of any infringement that causes to variation by the mounting position of electric actuator.
Except that patent documentation 2; Though exist got countermeasure to the hydromining in the casing Vidacare corp (for example; With reference to patent documentation 3,4); Yet these Vidacare corps are the device that the dewfall that produces to interior has been taked countermeasure, but can't handle for the situation that immerses rainwater from the outside.In addition, same with citing document 2, the countermeasure of the infringement of also not taking to cause to variation by the mounting position of electric actuator.
Summary of the invention
The present invention accomplishes in order to solve the above problems, and its purpose is, a kind of electric actuator is provided, and it can know in advance that the variation because of the immersion of rainwater or mounting position might produce the situation of infringement, thereby takes some countermeasures in advance.
In order to achieve the above object, the present invention provides a kind of electric actuator, and the electric motor that will be used for actuating valve leaves in the casing, and is provided with: slant angle sensor, and it is arranged in the casing, is used to measure the tilt angle of electric actuator; Transmitting element, it will send to external means according to the tilt angle that slant angle sensor the is measured information relevant with mounting position electric actuator that obtain.
According to this invention, measure the tilt angle of electric actuator by the slant angle sensor that is arranged in the casing, and will send to external means according to this tilt angle information relevant that obtain with mounting position motor driver.For example, in the present invention, the tilt angle that slant angle sensor is measured is sent to external means as the information relevant with the mounting position of electric actuator.At this moment; The maintenance man can be known the mounting position of electric actuator according to the tilt angle of sending; And if the mounting position of electric actuator is put upside down and then can be judged as rainwater and might immerse; If the mounting position of electric actuator has bigger variation, can be judged as then that output shaft and valve shaft might be out of shape or breakage.
In the present invention, the tilt angle information relevant with mounting position motor driver that obtain according to slant angle sensor is measured is not limited to the tilt angle that slant angle sensor is measured.For example, can be provided with: normal mounting posture storage unit, the information that it will be relevant with the normal mounting position of motor driver is stored as the normal mounting posture; Current mounting position makes the unit, and the information that its tilt angle of measuring according to slant angle sensor will be relevant with the current mounting position of electric actuator makes to become current mounting position; The mounting position identifying unit; It compares normal mounting posture and current mounting position; Judge electric actuator current mounting position normal/unusual, send to external means as the information relevant as a result what the mounting position identifying unit was judged with the mounting position of electric actuator.
In addition, can be provided with: initial mounting position storage unit, the information that it will be relevant with the initial mounting position of electric actuator is as initial mounting position storage; Current mounting position makes the unit, and the information that its tilt angle of measuring according to slant angle sensor will be relevant with the current mounting position of electric actuator makes to become current mounting position; The mounting position identifying unit; It compares initial mounting position and current mounting position; Judge electric actuator current mounting position normal/unusual, send to external means as the information relevant as a result what the mounting position identifying unit was judged with the mounting position of electric actuator.
In addition, can be provided with: normal mounting posture storage unit, the information that it will be relevant with the normal mounting position of electric actuator is stored as the normal mounting posture; Current mounting position makes the unit, and the information that its tilt angle of measuring according to slant angle sensor will be relevant with the current mounting position of electric actuator makes to become current mounting position; Mounting position side-play amount computing unit; It is poor based on normal mounting posture and current mounting position; Calculate the side-play amount of the mounting position of electric actuator; With the side-play amount that mounting position side-play amount computing unit calculates, send to external means as the information relevant with the mounting position of electric actuator.
In addition, can be provided with: initial mounting position storage unit, the information that it will be relevant with the initial mounting position of electric actuator is as initial mounting position storage; Current mounting position makes the unit, and the information that its tilt angle of measuring according to slant angle sensor will be relevant with the current mounting position of electric actuator makes to become current mounting position; Mounting position side-play amount computing unit; It is poor based on initial mounting position and current mounting position; Calculate the side-play amount of the mounting position of electric actuator; With the side-play amount that mounting position side-play amount computing unit calculates, send to external means as the information relevant with the mounting position of electric actuator.
In addition, can be provided with: normal mounting posture storage unit, the information that it will be relevant with the normal mounting position of electric actuator is stored as the normal mounting posture; Current mounting position makes the unit, and the information that its tilt angle of measuring according to slant angle sensor will be relevant with the current mounting position of electric actuator makes to become current mounting position; Mounting position side-play amount computing unit, it is poor based on normal mounting posture and current mounting position, calculates the side-play amount of the mounting position of electric actuator; Normal range (NR) threshold value storage unit, its threshold value with the normal range (NR) of the mounting position side-play amount of electric actuator is stored as the normal range (NR) threshold value; The mounting position identifying unit; Its side-play amount and normal range (NR) threshold value with the mounting position that mounting position side-play amount computing unit calculates compares; Judge electric actuator current mounting position normal/unusual, send to external means as the information relevant as a result what the mounting position identifying unit was judged with the mounting position of electric actuator.
In addition, can be provided with: initial mounting position storage unit, the information that it will be relevant with the initial mounting position of electric actuator is as initial mounting position storage; Current mounting position makes the unit, and the information that its tilt angle of measuring according to slant angle sensor will be relevant with the current mounting position of electric actuator makes to become current mounting position; Mounting position side-play amount computing unit, it is poor based on initial mounting position and current mounting position, calculates the side-play amount of the mounting position of electric actuator; Normal range (NR) threshold value storage unit, its threshold value with the normal range (NR) of the mounting position side-play amount of electric actuator is stored as the normal range (NR) threshold value; The mounting position identifying unit; Its side-play amount and normal range (NR) threshold value with the mounting position that mounting position side-play amount computing unit calculates compares; Judge mounting position that electric actuator is current normal/unusual, send to external means as the information relevant as a result what the mounting position identifying unit was judged with the mounting position of electric actuator.
According to the present invention; By the tilt angle that is arranged on the slant angle sensor measurement electric actuator in the casing; And will sending to external means, so the information relevant that can send according to this with mounting position electric actuator according to this tilt angle information relevant that obtain with mounting position electric actuator; Know because of the immersion of rainwater or the variation of mounting position might produce the situation of infringement in advance, thereby take some countermeasures in advance.
Description of drawings
Fig. 1 is the block diagram of major component of a mode of execution of the electric actuator that the present invention relates to of expression.
Fig. 2 is the flow chart that is used to explain the processing action that the normal/unusual determining program according to the mounting position of this electric actuator carries out.
Fig. 3 is the functional block diagram of the major component of control circuit and nonvolatile memory in this electric actuator.
Description of reference numerals: 1-control circuit, 2-nonvolatile memory, 3-A/D transducer, 4-communication line, 5-multiplexer; 6-sets input circlult, 7-electric motor, 8-motor drive circuit, 9-feeder loop; The 10-reducing gear, 11-slant angle sensor, 12-casing, 100-electric actuator; The 200-valve, the 300-peripheral control unit, the current mounting position of 1A-makes portion, 1B-mounting position side-play amount calculating part; 1C-mounting position abnormality juding portion, 2A-normal mounting posture memory section, the initial mounting position memory section of 2B-, 2C-mounting position side-play amount normal range (NR) threshold value memory section.
Embodiment
Below, based on accompanying drawing the present invention is described at length.Fig. 1 is the block diagram of major component of a mode of execution of the electric actuator that the present invention relates to of expression.In the figure, the 100th, the electric actuator that the present invention relates to is installed on the valve 200 that is provided with spool, by integrated with as electric control valve.In addition, and peripheral control unit 300 between, carry out the reception of information and send.
In this electric actuator 100; Slant angle sensor 11 is measured tiltangle x on the X-axis direction of electric actuators 100, the tiltangle y on the Y direction, the tiltangle z on the Z-direction, and this is offered control circuit 1 as tiltangle (θ x, θ y, θ z).In addition, because slant angle sensor is by known (for example, with reference to patent documentation 5～9), thereby omit its explanation at this.
In addition; In nonvolatile memory 2; Preserve in processing action according to the normal/control circuit (CPU) 1 that unusual determining program carries out of above-mentioned mounting position, normally/employed threshold alpha 1 (α 1x, α 1y, α 1z) and α 2 (α 2x, α 2y, α 2z) during unusual judgement.Threshold alpha 1, α 2 state after seeing for details.
In addition, in nonvolatile memory 2, preserve the normal mounting posture and initial mounting position of electric actuator 100 with respect to valve 200.
In this embodiment; As the normal mounting posture of electric actuator 100 with respect to valve 200, in nonvolatile memory 2, preserve as electric actuator 100 is installed in valve 200 above mounting position (θ xnc), the mounting position (θ ync) of Y direction and the mounting position (θ znc) of Z-direction of X-axis direction of regulation in design of posture.
In addition; As the initial mounting position of electric actuator 100, in nonvolatile memory 2, preserve electric actuator 100 is installed on valve 200 and mounting position (θ xst), the mounting position (θ yst) of Y direction and the mounting position (θ zst) of Z-direction of X-axis direction of reality before beginning to use with respect to valve 200.
(control of valve opening)
Control circuit (CPU) 1, as common processing, the aperture of coming the spool in the control valve 200 according to the aperture control program that is kept at nonvolatile memory 2.The aperture control of this spool is carried out in such a way.
According to the path of setting input circlult 6 → multiplexer 5 → A/D transducer 3; To offer control circuit (CPU) 1 from the setting value (setting aperture) of the valve opening of peripheral control unit 300; And according to the path of multiplexer 5 → A/D transducer 3, the measured value (real aperture) of the valve opening of self-feedback ciucuit 9 offers control circuit (CPU) 1 in the future.
Control circuit (CPU) 1 will compare from the setting aperture and the real aperture of A/D transducer 3, so that set the aperture mode consistent with real aperture, sends drive instruction to motor drive circuit 8.Thus, drive electric motor 7, and the driving force of this electric motor 7 is passed to the valve shaft of valve 200, adjust the aperture that axle is fixed in the spool of this valve shaft via reducing gear 10.
(self diagnosis)
Control circuit (CPU) 1, (Fig. 2: step S101), carry out self diagnosis (step S102), judge normal/unusual (the step S103) of the processing capacity in the electric actuator 100 when energized.At this, if the result of self diagnosis is " unusually " (step S103 denys), then make system stop (step S104), and via the result (step S105) of communication line 4 to peripheral control unit 300 these self diagnosis of transmission.
(normal/unusual judgement of electric actuator mounting position)
If the result of self diagnosis is normal (step S103 is), control circuit (CPU) 1 then reads in tiltangle (θ x, θ y, θ z) from slant angle sensor 11 as the current mounting position (step S106) of electric actuator 100.
Then; Poor (absolute value) of normal mounting posture (θ xnc) of obtaining tiltangle x and X-axis direction is as offset delta 1x; Poor (absolute value) of normal mounting posture (θ ync) of obtaining tiltangle y and Y direction be as offset delta 1y, and poor (absolute value) of normal mounting posture (θ znc) of obtaining tiltangle z and Z-direction is as offset delta 1z (step S107).
Then; Offset delta 1x and threshold alpha 1x are compared; Offset delta 1y and threshold alpha 1y are compared, offset delta 1z and threshold alpha 1z are compared, even as if having only one to surpass threshold alpha 1x, α 1y, α 1z among offset delta 1x, δ 1y, the δ 1z; Then also set up sign F1, be set at F1=1 (step S108).Promptly; The mounting position of electric actuator 100 is compared apart from the offset delta 1 of normal mounting posture and threshold alpha 1 to the normal range (NR) of this side-play amount defined; If offset delta 1 paranormal threshold alpha 1 then be judged to be unusually, and bidding will F1 is " 1 ".
Then; Control gear (CPU) 1; Poor (absolute value) of initial mounting position (θ xst) of obtaining tiltangle x and X-axis direction is as offset delta 2x; Poor (absolute value) of initial mounting position (θ yst) of obtaining tiltangle y and Y direction be as offset delta 2y, and poor (absolute value) of initial mounting position (θ zst) of obtaining tiltangle z and Z-direction is as offset delta 2z (step S109).
And; Offset delta 2x and threshold alpha 2x are compared; Offset delta 2y and threshold alpha 2y are compared, offset delta 2z and threshold alpha 2z are compared, even as if having only one to surpass threshold alpha 2x, α 2y, α 2z among offset delta 2x, δ 2y, the δ 2z; Then also set up sign F2, be made as F2=1 (step S110).Promptly; The offset delta 2 of the initial mounting position of the mounting position of electric actuator 100 distance and threshold alpha 2 to the normal range (NR) of this side-play amount defined are compared; If offset delta 2 paranormal threshold alpha 2 then be judged to be unusually, and bidding will F2 are " 1 ".
So; Control circuit (CPU) 1; After obtaining tiltangle (θ x, θ y, θ z), offset delta 1 (δ 1x, δ 1y, δ 1z), offset delta 2 (δ 2x, δ 2y, δ 2z), sign F1, F2, these information are sent (step S111) via communication circuit 4 to peripheral control unit 300.
In addition, control circuit (CPU) 1, acknowledgement indicator F1, F2 even have only one to be " 1 " (step S112 is) if indicate F1, F2, then make system stop (step S114).If sign F1, F2 all are not " 1 " (step S112 denys), then will be kept at (step S113) in the nonvolatile memory 2, and return step S106 at the tiltangle (θ x, θ y, θ z) that step S106 obtains.
For example, be mounted under the anti-situation with respect to the normal mounting posture at electric actuator 100, sign F1 is " 1 ".According to the state of this sign F1, the maintenance man can be known in advance that rainwater might immerse the situation of electric actuator 100, thereby take some countermeasures in advance.
In addition, causing the fixedly bolt looseness of casing 12 because of vibration, the mounting position of electric actuator 100 is changed from original state, and under the paranormal situation, sign F2 is " 1 ".According to the state of this sign F2, the maintenance man can know in advance that the valve shaft of the output shaft that might produce electric actuator 100 and valve 200 produces flexural stress and is out of shape or produces the situation that breakage etc. damages, thereby takes some countermeasures in advance.
So, according to this mode of execution, can be not do not stop, thereby improve the usability of system because of what the fault of the actuator of burst caused.In addition, in this mode of execution, because the resume of tiltangle are kept at (Fig. 2: step S113), therefore can carry out valuable Fault analytical through the resume of this tiltangle of research in the nonvolatile memory 2.
In addition; In this embodiment; Be to send tiltangle (θ x, θ y, θ z), offset delta 1 (δ 1x, δ 1y, δ 1z), offset delta 2 (δ 2x, δ 2y, δ 2z), sign F1, F2 to peripheral control unit 300, yet also can not necessarily send this whole information from electric actuator 100.
For example, can only send tiltangle (θ x, θ y, θ z).At this moment; The maintenance man can be known the mounting position of electric actuator 100 according to the tiltangle that sends (θ x, θ y, θ z); If the mounting position of electric actuator 100 is put upside down and then can be judged as rainwater and might immerse; If the mounting position of electric actuator 100 has bigger variation, can be judged as then that output shaft and valve shaft might be out of shape or breakage.
In addition, also can only send offset delta 1 (δ 1x, δ 1y, δ 1z).At this moment; Therefore the maintenance man can be known the side-play amount of the current mounting position of electric actuator 100 with respect to the normal mounting posture according to the offset delta of sending 1 (δ 1x, δ 1y, δ 1z), can be to the mounting position of electric actuator 100 to be in abnormal ranges that rainwater might immerse, still to be in normal range (NR) and to judge.
In addition, also can only send offset delta 2 (δ 2x, δ 2y, δ 2z).At this moment; The maintenance man can be known the side-play amount (variation) of the initial mounting position of current mounting position distance of electric actuator 100 according to the offset delta of sending 2 (δ 2x, δ 2y, δ 2z), therefore can be to the mounting position of electric actuator 100 to be in output shaft with valve shaft might be out of shape or the abnormal ranges of breakage, still be in normal range (NR) and judge.
Fig. 3 is the functional block diagram of the major component of control circuit 1 and nonvolatile memory 2 in the above-mentioned electric actuator 100 of expression.Control circuit 1 possesses: current mounting position makes the 1A of portion, mounting position side-play amount calculating part 1B, the mounting position abnormality juding 1C of portion.Nonvolatile memory 2 possesses: normal mounting posture memory section 2A, initial mounting position memory section 2B, mounting position side-play amount normal range (NR) threshold value memory section 2C.
In nonvolatile memory 2, in normal mounting posture memory section 2A, preserve the normal mounting posture (θ xnc) of the X-axis direction of electric actuator 100, the normal mounting posture (θ ync) of Y direction and the normal mounting posture (θ znc) of Z-direction.In initial mounting position memory section 2B, preserve the initial mounting position (θ xst) of the X-axis direction of electric actuator 100, the initial mounting position (θ yst) of Y direction and the initial mounting position (θ zst) of Z-direction.In mounting position side-play amount normal range (NR) threshold value memory section 2C, the mounting position of preserving electric actuator 100 is apart from the threshold alpha 2 of the normal range (NR) of the side-play amount of the threshold alpha 1 of the normal range (NR) of the side-play amount of normal mounting posture and the initial mounting position of distance.
In control circuit 1, current mounting position makes the 1A of portion, will be from the tiltangle (θ x, θ y, θ z) of the slant angle sensor 11 current mounting position as electric actuator 100.Mounting position side-play amount calculating part 1B; Poor (absolute value) of obtaining the normal mounting posture θ nc (θ xnc, θ ync, θ znc) among the current mounting position θ (θ x, θ y, θ z) that makes the 1A of portion from current mounting position and the normal mounting posture memory section 2A is as offset delta 1 (δ 1x, δ 1y, δ 1z); Obtain from current mounting position and make the current mounting position θ (θ x, θ y, θ z) of the 1A of portion and poor (absolute value) of the initial mounting position θ st (θ xst, θ yst, θ zst) among the initial mounting position memory section 2B, as offset delta 2 (δ 2x, δ 2y, δ 2z).
The mounting position abnormality juding 1C of portion; The threshold alpha 1 of the normal range (NR) among the offset delta 1 (δ 1x, δ 1y, δ 1z) that mounting position side-play amount calculating part 1B is obtained and the mounting position side-play amount normal range (NR) threshold value memory section 2C compares; Under the situation of the paranormal threshold alpha 1 of offset delta 1 (δ 1x, δ 1y, δ 1z), it is unusual to be judged to be mounting position.In addition; The threshold alpha 2 of the normal range (NR) among the offset delta 2 (δ 2x, δ 2y, δ 2z) that mounting position side-play amount calculating part 1B is obtained and the mounting position side-play amount normal range (NR) threshold value memory section 2C compares; Under the situation of the paranormal threshold alpha 2 of offset delta 2 (δ 2x, δ 2y, δ 2z), it is unusual to be judged to be mounting position.
In addition; In functional block diagram shown in Figure 3; Make among the 1A of portion at current mounting position, according to tiltangle x, θ y, θ z from slant angle sensor 11, the tilt angle of synthetic X-axis direction, Y direction, Z-direction; And the tilt angle that will synthesize is as the current mounting position of electric actuator 100; And the side-play amount of mounting position obtained with the difference of initial mounting position as corresponding normal mounting posture of being preserved therewith, thereby can be according to the threshold value of this departure and normal range (NR), carry out mounting position normally/unusual judgement.
Claims (8)
1. electric actuator, the electric motor that will be used for actuating valve leaves in the casing, it is characterized in that possessing:
Slant angle sensor, it is arranged in the said machine casing, is used to measure the tilt angle of above-mentioned electric actuator;
Transmitting element, it will send to external means according to the tilt angle that above-mentioned slant angle sensor the is measured information relevant with mounting position above-mentioned electric actuator that obtain.
2. electric actuator according to claim 1 is characterized in that,
Above-mentioned transmitting element, send to external means as the information relevant with the mounting position of above-mentioned electric actuator at the tilt angle that above-mentioned slant angle sensor is measured.
3. electric actuator according to claim 1 is characterized in that possessing:
Normal mounting posture storage unit, the information that it will be relevant with the normal mounting position of above-mentioned electric actuator is stored as the normal mounting posture;
Current mounting position makes the unit, and the information that its tilt angle of measuring according to above-mentioned slant angle sensor will be relevant with the current mounting position of above-mentioned electric actuator makes to become current mounting position;
The mounting position identifying unit, it compares above-mentioned normal mounting posture and above-mentioned current mounting position, judge above-mentioned electric actuator current mounting position normal/unusual,
Above-mentioned transmitting element,
Send to external means as the information relevant as a result what above-mentioned mounting position identifying unit was judged with the mounting position of above-mentioned electric actuator.
4. electric actuator according to claim 1 is characterized in that possessing:
Initial mounting position storage unit, the information that it will be relevant with the initial mounting position of above-mentioned electric actuator is as initial mounting position storage;
Current mounting position makes the unit, and the information that its tilt angle of measuring according to above-mentioned slant angle sensor will be relevant with the current mounting position of above-mentioned electric actuator makes to become current mounting position;
The mounting position identifying unit, it compares above-mentioned initial mounting position and above-mentioned current mounting position, judge above-mentioned electric actuator current mounting position normal/unusual,
Above-mentioned transmitting element,
Send to external means as the information relevant as a result what above-mentioned mounting position identifying unit was judged with the mounting position of above-mentioned electric actuator.
5. electric actuator according to claim 1 is characterized in that possessing:
Normal mounting posture storage unit, the information that it will be relevant with the normal mounting position of above-mentioned electric actuator is stored as the normal mounting posture;
Current mounting position makes the unit, and the information that its tilt angle of measuring according to above-mentioned slant angle sensor will be relevant with the current mounting position of above-mentioned electric actuator makes to become current mounting position;
Mounting position side-play amount computing unit, it is poor based on above-mentioned normal mounting posture and above-mentioned current mounting position, calculates the side-play amount of the mounting position of above-mentioned electric actuator,
Above-mentioned transmitting element,
With the side-play amount that above-mentioned mounting position side-play amount computing unit calculates, send to external means as the information relevant with the mounting position of above-mentioned electric actuator.
6. electric actuator according to claim 1 is characterized in that possessing:
Initial mounting position storage unit, the information that it will be relevant with the initial mounting position of above-mentioned electric actuator is as initial mounting position storage;
Current mounting position makes the unit, and the information that its tilt angle of measuring according to above-mentioned slant angle sensor will be relevant with the current mounting position of above-mentioned electric actuator makes to become current mounting position;
Mounting position side-play amount computing unit, it is poor based on above-mentioned initial mounting position and above-mentioned current mounting position, calculates the side-play amount of the mounting position of above-mentioned electric actuator,
Above-mentioned transmitting element,
With the side-play amount that above-mentioned mounting position side-play amount computing unit calculates, send to external means as the information relevant with the mounting position of above-mentioned electric actuator.
7. electric actuator according to claim 1 is characterized in that possessing:
Normal mounting posture storage unit, the information that it will be relevant with the normal mounting position of above-mentioned electric actuator is stored as the normal mounting posture;
Current mounting position makes the unit, and the information that its tilt angle of measuring according to above-mentioned slant angle sensor will be relevant with the current mounting position of above-mentioned electric actuator makes to become current mounting position;
Mounting position side-play amount computing unit, it is poor based on above-mentioned normal mounting posture and above-mentioned current mounting position, calculates the side-play amount of the mounting position of above-mentioned electric actuator;
Normal range (NR) threshold value storage unit, its threshold value with the normal range (NR) of the mounting position side-play amount of above-mentioned electric actuator is stored as the normal range (NR) threshold value;
The mounting position identifying unit, its side-play amount and above-mentioned normal range (NR) threshold value with the mounting position that above-mentioned mounting position side-play amount computing unit calculates compares, judge above-mentioned electric actuator current mounting position normal/unusual,
Above-mentioned transmitting element,
Send to external means as the information relevant as a result what above-mentioned mounting position identifying unit was judged with the mounting position of above-mentioned electric actuator.
8. electric actuator according to claim 1 is characterized in that possessing:
Initial mounting position storage unit, the information that it will be relevant with the initial mounting position of above-mentioned electric actuator is as initial mounting position storage;
Current mounting position makes the unit, and the information that its tilt angle of measuring according to above-mentioned slant angle sensor will be relevant with the current mounting position of above-mentioned electric actuator makes to become current mounting position;
Mounting position side-play amount computing unit, it is poor based on above-mentioned initial mounting position and above-mentioned current mounting position, calculates the side-play amount of the mounting position of above-mentioned electric actuator;
Normal range (NR) threshold value storage unit, its threshold value with the normal range (NR) of the mounting position side-play amount of above-mentioned electric actuator is stored as the normal range (NR) threshold value;
The mounting position identifying unit, its side-play amount and above-mentioned normal range (NR) threshold value with the mounting position that above-mentioned mounting position side-play amount computing unit calculates compares, judge mounting position that above-mentioned electric actuator is current normal/unusual,
Above-mentioned transmitting element,
Send to external means as the information relevant as a result what above-mentioned mounting position identifying unit was judged with the mounting position of above-mentioned electric actuator.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008-242363 | 2008-09-22 | ||
| JP2008242363 | 2008-09-22 | ||
| JP2008242363A JP5255383B2 (en) | 2008-09-22 | 2008-09-22 | Electric actuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101684866A CN101684866A (en) | 2010-03-31 |
| CN101684866B true CN101684866B (en) | 2012-03-07 |
Family
ID=42048161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101738784A Expired - Fee Related CN101684866B (en) | 2008-09-22 | 2009-09-18 | Electric actuator |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5255383B2 (en) |
| KR (1) | KR101211276B1 (en) |
| CN (1) | CN101684866B (en) |
| TW (1) | TWI384725B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9353970B2 (en) * | 2012-12-28 | 2016-05-31 | Sunpower Corporation | Drive with integrated inclination sensor |
| CN104154294A (en) * | 2014-08-04 | 2014-11-19 | 合肥正威液压科技有限公司 | Electric control device of intelligent digital flow valve |
| JP6819304B2 (en) * | 2017-01-12 | 2021-01-27 | 株式会社島津製作所 | Vacuum valves, vacuum pumps and vacuum exhaust systems |
| CN106949597B (en) * | 2017-03-14 | 2019-12-10 | 深圳创维空调科技有限公司 | detection method and system for preventing air conditioner outdoor unit from falling and air conditioner |
| CN109061224A (en) * | 2018-05-08 | 2018-12-21 | 株洲科盟车辆配件有限责任公司 | train axle monitoring method, device and system |
| JP7253916B2 (en) * | 2018-12-27 | 2023-04-07 | ナブテスコ株式会社 | Valve element state monitoring device and fluid pressure drive device |
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|---|---|---|---|---|
| CN2450454Y (en) * | 2000-11-02 | 2001-09-26 | 黄国防 | Double-flow electric controlled valve driven by motor |
| US6864771B2 (en) * | 2001-05-22 | 2005-03-08 | Denso Corporation | Electromagnetic actuator |
| CN201100471Y (en) * | 2007-10-22 | 2008-08-13 | 扬州恒春电子有限公司 | Angle stroke electric execution machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06349261A (en) * | 1993-06-07 | 1994-12-22 | Sony Corp | Operational environment detector for electric appliance |
| JP4175228B2 (en) * | 2003-09-22 | 2008-11-05 | ソニー株式会社 | Recording medium driving method and recording medium driving apparatus |
| JP2005237150A (en) * | 2004-02-20 | 2005-09-02 | Toyota Motor Corp | Actuator |
| JP4772784B2 (en) * | 2005-04-04 | 2011-09-14 | 株式会社ミツバ | Home care equipment monitoring system |
| KR100692139B1 (en) * | 2005-08-23 | 2007-03-12 | 현대자동차주식회사 | Combine controllor of hybrid vehicle |
| JP4889473B2 (en) * | 2006-12-20 | 2012-03-07 | 株式会社山武 | Actuator, valve device and damper device |
-
2008
- 2008-09-22 JP JP2008242363A patent/JP5255383B2/en not_active Expired - Fee Related
-
2009
- 2009-08-11 TW TW098126894A patent/TWI384725B/en not_active IP Right Cessation
- 2009-09-03 KR KR1020090082964A patent/KR101211276B1/en not_active IP Right Cessation
- 2009-09-18 CN CN2009101738784A patent/CN101684866B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2450454Y (en) * | 2000-11-02 | 2001-09-26 | 黄国防 | Double-flow electric controlled valve driven by motor |
| US6864771B2 (en) * | 2001-05-22 | 2005-03-08 | Denso Corporation | Electromagnetic actuator |
| CN201100471Y (en) * | 2007-10-22 | 2008-08-13 | 扬州恒春电子有限公司 | Angle stroke electric execution machine |
Non-Patent Citations (1)
| Title |
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| JP特开2000-337551A 2000.12.05 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2010075008A (en) | 2010-04-02 |
| KR101211276B1 (en) | 2012-12-11 |
| CN101684866A (en) | 2010-03-31 |
| TW201014118A (en) | 2010-04-01 |
| JP5255383B2 (en) | 2013-08-07 |
| KR20100033925A (en) | 2010-03-31 |
| TWI384725B (en) | 2013-02-01 |
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