WO2022250441A1 - 컴팩트 스프링 리턴 액추에이터 - Google Patents
컴팩트 스프링 리턴 액추에이터 Download PDFInfo
- Publication number
- WO2022250441A1 WO2022250441A1 PCT/KR2022/007404 KR2022007404W WO2022250441A1 WO 2022250441 A1 WO2022250441 A1 WO 2022250441A1 KR 2022007404 W KR2022007404 W KR 2022007404W WO 2022250441 A1 WO2022250441 A1 WO 2022250441A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shaft
- planetary gear
- differential planetary
- emergency
- valve
- Prior art date
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- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 48
- 230000009467 reduction Effects 0.000 abstract description 26
- 238000009877 rendering Methods 0.000 abstract 1
- 230000035939 shock Effects 0.000 description 12
- 239000010720 hydraulic oil Substances 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000014509 gene expression Effects 0.000 description 3
- 230000005415 magnetization Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000036316 preload Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000008521 reorganization Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
Images
Classifications
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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
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/06—Differential gearings with gears having orbital motion
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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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- 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
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
Definitions
- the present invention relates to a compact spring return actuator, and in an actuator that emergencyly returns a valve in the event of an emergency such as a power outage, a drive shaft operated by a motor and a drive shaft operated by an elastic body of an emergency return means are respectively differential planetary gear reducers , and the differential planetary gear reducers are connected to each other so that the power transmission of the motor and the elastic body is dualized so that they do not affect each other, reducing the capacity of the motor and miniaturizing each part of the power transmission system to reduce the weight of the entire actuator and a compact spring return actuator capable of miniaturization.
- An electric actuator used in such an automatic flow control device is an indispensable driving device for automating valves and adjusting dampers, and is composed of a control unit, an auxiliary gear device, and a motor.
- the electric actuator including a motor that rotates when power is applied, a drive shaft that rotates by the motor, and a driven shaft that rotates by receiving rotational force from the drive shaft to rotate and open and close the valve.
- the driven shaft rotates in both directions by the operation of the motor, the valve is opened and closed.
- a spring return valve actuator is used to return the valve to a state before the initial operation by using the elastic force of the spring in an emergency situation such as a power outage or the like where the motor cannot be controlled.
- a coil spring or torsion spring is directly connected to the output side of the driven shaft that rotates and opens the valve, that is, the electric actuator, so that power is turned on - motor operation - gear operation of the reduction unit - spring compression - valve operation power Since the elastic force of the spring accumulates and dissolves in conjunction with the operation of the motor as it forms the transmission system, the load that the motor has to handle becomes too large, and accordingly, the output of the motor is also required to be high, which inevitably makes the actuator large.
- the conventional electric actuator has a problem in that the electromagnetic brake, which limits the operation of the compressed spring, is constantly turned on and magnetization occurs, so that the electromagnetic brake does not operate accurately in an emergency situation.
- the conventional electric actuator has a problem in that the stopper for stopping the emergency return of the valve is easily damaged by strong impact.
- a differential planetary gear reducer is provided on a driving shaft operated by a motor and an operating shaft operated by an elastic body of an emergency return means, respectively, and the differential planetary gear reducer Compact spring return that can reduce the weight and size of the entire actuator by miniaturizing each part of the power transmission system while reducing the capacity of the motor by connecting them to be meshed with each other so that the power transmission of the motor and the elastic body are dualized so that they do not affect each other. It aims to provide an actuator.
- a driving shaft that receives power from the motor and rotates
- an emergency return means for converting and transmitting the elastic force of the elastic body into rotational force and including an operating shaft engaged with the differential planetary gear reducer to rotate and restore the valve when power is cut off.
- the elastic body is characterized in that composed of an S-shaped spiral spring.
- the deceleration means The deceleration means,
- a first differential planetary gear reducer provided on the drive shaft
- Figure 6a Figure 6b is a cross-sectional view of the main part for explaining the nut loosening prevention means of the present invention.
- breaking means 50 manual opening and closing means
- the present invention relates to a compact spring return actuator capable of automatically returning a valve to its original position in an emergency situation such as a power failure, and includes a drive shaft 10 operated by a motor M , a driven shaft 20 for opening and closing a valve (not shown), a deceleration means for decelerating the rotational force of the motor (M) or emergency return means 30, and an emergency return means 30 for rotating and returning the valve to the position before the initial operation. , a braking means 40 of the emergency return means 30, and a manual opening/closing means 50.
- a driven shaft 20 that opens and closes a valve (not shown) by rotating by the driving shaft 10;
- a deceleration means for decelerating the rotational force transmitted to the driven shaft 20;
- the deceleration means The deceleration means,
- a second differential planetary gear reducer 34 provided on the operating shaft 321 and meshed with and connected to the first differential planetary gear reducer 11 is included.
- the reduction means is a gear formed on the outer circumferential surfaces of the fixed ring gear 111 of the first differential planetary gear reducer 11 and the differential ring gear 342 of the second differential planetary gear reducer 34 and meshed with each other. It includes parts 111a and 342a.
- the present invention is provided with two or more electronic brakes that limit the operation of the emergency reset means 30, but the on / off operation of each electronic brake is performed so that when one electronic brake is on, the other electronic brake is off. and a braking means 40 that is set to operate alternately at regular intervals.
- the electromagnetic brake includes interlocking gears 412 and 422 rotatable together with the operating shaft 321 in an off state.
- the speed reduction means includes a spur gear reduction part R1 meshed and connected between the rotation shaft M1 of the motor M and the driving shaft 10 .
- the elastic body is composed of an S-shaped spiral spring (33).
- a second rotating body 32 provided on the other side of the housing 30a and having an operating shaft 321 transmitting rotational power to the valve
- the S-type spiral spring 33 has one end connected to the first rotating body 31 and is wound to accumulate elastic force, and the other end is connected to the second rotating body 32 .
- the end gear of the input side is connected to the spur gear reduction portion R1 of the reduction means, the first differential planetary gear reducer 11 provided on the input side, and the worm shaft portion 12 provided on the output side including,
- the first differential planetary gear reducer 11 forms a differential planetary gear reducer R2 together with the second differential planetary gear reducer 34 provided on the operating shaft 321 of the emergency return means 30,
- the worm shaft portion 12 together with the worm wheel portion 21 of the driven shaft 20 forms a worm gear reduction portion R3.
- the worm wheel part 21 has an arc shape rather than a circular ring shape formed in the circumferential direction of the driven shaft 20, because most valves are opened and closed by rotating 90 degrees.
- the reduction means is composed of a spur gear reduction unit (R1), a differential planetary gear reduction unit (R2), and a worm gear reduction unit (R3).
- the spur gear reduction unit R1 first reduces the rotational force of the motor M and transmits it to the input side of the driving shaft 10 .
- the first differential planetary gear reducer 11 and the second differential planetary gear reducer 34 place a sun gear (not shown) connected to the input shaft in the center, and arrange the planetary gears in the circumferential direction of the sun gear so that the sun gear and the planetary gear are They are meshed with each other, inscribed on the outer side of the planetary gears, arranged back and forth, but connected to the fixed ring gears 111 and 341 on the input side that do not rotate and the output side of the drive shaft 10 (that is, the worm shaft portion 12) It consists of a rotatable output-side differential ring gear (112) (342).
- the fixed ring gear 111 of the first differential planetary gear reducer 11 and the differential ring gear 342 of the second differential planetary gear reducer 34 are gear parts 111a and 342a formed on the respective outer circumferential surfaces. are intertwined with each other.
- the differential planetary gear reducer R2 reduces and transmits the rotational force transmitted to the input side to the output side, and conversely, does not transmit the rotational force transmitted to the output side to the input side by the self-locking function of the differential planetary gear reducer itself.
- a differential planetary gear reducer mounted on a separate interlocking shaft is additionally connected between the first differential planetary gear reducer 11 and the second differential planetary gear reducer 34 to increase the reduction ratio.
- the rotational force (elastic force) of the emergency return means 30 is reduced in three stages while passing through the second differential planetary gear reducer 34, the first differential planetary gear reducer 11 and the worm gear reducer R3, to be transmitted to the coaxial 20,
- the rotational force of the manual opening/closing means 50 is reduced in two steps while sequentially passing through the first differential planetary gear reducer 11 and the worm gear reducer R3 and transmitted to the driven shaft 20.
- the emergency return means 30 is built into the housing 30a separately coupled to one side of the case C,
- the elastic body mounted inside the housing 30a is composed of an S-type spiral spring 33 that rotates and returns the valve.
- the S-type spiral spring 33 has one end connected to the first rotating body 31 and is wound to accumulate elastic force, and the other end is connected to the second rotating body 32 .
- the first rotating body 31 and the second rotating body 32 have a tape reel shape, and the S-shaped spiral spring 33 is wound around the first rotating body 31 to accumulate elastic force.
- the second rotating body 32 is protruded and connected to the operating shaft 321 in the axial direction, and the second differential planetary gear reducer 34 provided on the output side of the operating shaft 321 is connected to the first differential.
- the S-shaped spiral spring 33 has one end unwound from the first rotating body 31 by an elastic force and the other end of the S-shaped spiral spring 33 is wound around the second rotating body 32 at the same time as the second rotating body 32. 2
- the valve As the rotational force of the operating shaft 321 is sequentially transmitted to the driving shaft 10 and the driven shaft 20, the valve is moved in the opposite direction to the initial operating direction (that is, when the valve is opened by electric drive, the valve is closed, and vice versa).
- the valve When the valve is in the closed state, the valve is opened and closed by rotating back to the open state.
- this S-shaped spiral spring 33 does not have a large difference between the preload due to compression and the pressure during complete compression, so it is It does not have to be large in strength and size, and it is possible to use a small motor with low power for electric drive, and the overall size (volume) of the actuator can be drastically reduced.
- the driven shaft 20 since the rotational force generated by the S-shaped spiral spring 33 is transmitted to the driven shaft 20 while being decelerated in three stages through the above-mentioned deceleration means, even if a small motor of low power is used, the driven shaft 20 The final torque of can be designed to easily match the conventional reference torque, thereby achieving miniaturization of the actuator.
- the braking unit 40 includes an electromagnetic brake that limits the operation of the emergency return unit 30 .
- the braking means 40 is provided with two or more electromagnetic brakes that limit the operation of the emergency return means 30, and the on/off operation of each electromagnetic brake is set to be operated alternately at regular intervals.
- the electromagnetic brake uses magnets to stop the rotation of the brake rings 411 and 421 coupled to the shaft portion of the second rotating body 32,
- the brake rings 411 and 421 hold the second rotating body 32 so that they do not rotate, and when power is cut off, the stopping of the brake rings 411 and 421 is released, so that the second rotating body ( 32) to enable rotation.
- a plurality of electromagnetic brakes are mounted on the outer surface of the housing 30a so as to be arranged in a row in the axial direction of the second rotating body 32, so that each electromagnetic brake slides through the shaft of the second rotating body 32, respectively. It may be equipped to topping, but
- the remaining electromagnetic brakes are disposed in the circumferential direction and interlocked with each other.
- the electronic brake includes interlocking gears 412 and 422 rotatable together with the operating shaft 321 in an off state.
- the interlocking gears 412 and 422 protrude along the outer circumference of the brake rings 411 and 421 .
- the operation shaft 321 is connected to one of the interlocking gears 412 and 422 of the electromagnetic brakes while the interlocking gears 412 and 422 of each electromagnetic brake are meshed and connected to each other. do.
- the interlocking gears 412 and 422 interlock the brake rings 411 and 421 of all the electromagnetic brakes 41 and 42. It is locked and cannot rotate to prevent the operation of the emergency return means 30, that is, the rotation of the operating shaft 321,
- the operation of the emergency reset means 30 is stopped in normal times, and the electromagnetic brakes 41 and 42 are stopped. Since magnetization does not occur, when an emergency situation occurs, the electromagnetic brake releases the locking of the second rotating body 32 while operating normally, so that the return rotation of the valve by the emergency reset means 30 is safely performed.
- the manual opening and closing means 50 includes a shaft 51 engaged and connected to the drive shaft 10, a manual operation unit 52 capable of rotating the shaft 51, the shaft 51 and the manual operation unit ( 52) and a clutch lever 53 that selectively connects them.
- a gear at one end of the shaft 51 is meshed with a spur gear at the input side of the drive shaft 10 .
- the manual operation part 52 is in the form of a handle or lever and is mounted on the same line as the shaft 51 at a predetermined interval.
- the clutch lever 53 connects or separates the shaft 51 and the manual operation unit 52, and a known clutch structure may be employed.
- the clutch part 531 of the clutch lever 53 separates the shaft 51 and the manual operation part 52 so that they do not interlock with each other, so that the manual operation part 52 rotates together during electric operation. prevent that
- the present invention further includes a hydraulic stopper 60 for stopping the rotation of the valve and resolving the contact shock of the worm wheel part 21.
- the hydraulic stopper 60 The hydraulic stopper 60,
- a support pipe 61 coupled to and fixed to a position spaced apart from both ends of the worm wheel 21 by a predetermined interval
- a buffer cylinder 62 having a buffer part 621 filled with hydraulic oil and inserted into and coupled to the front end of the support pipe 61 to be reappeared,
- a buffer pin 63 coupled to the inside of the support pipe and having a piston part 631 inserted into the buffer part 621;
- a compression spring 64 supported on the front surface of the piston unit 631 and elastically supporting the shock absorbing cylinder 62 to move forward is included.
- the buffer cylinder 62 has a contact portion 622 made of a soft material such as rubber coupled to the front end, and the buffer portion 621 is airtight with an O-ring of a cap 623 coupled to the rear end, Hydraulic oil is filled in the shock absorber 621.
- the buffer pin 63 is inserted through the cap 623, and the piston part 631 partitions the buffer part 621 into two spaces in front and rear.
- an orifice structure is formed in the shock absorbing cylinder 62 or the piston part 631 or both of them to allow hydraulic oil to flow into the space before and after the piston part 631 .
- the compression spring 64 supports the contact portion 622 so that the shock absorbing cylinder 62 advances with respect to the piston portion 631 so that the contact portion 622 protrudes outward from the front end side of the support pipe 61 .
- the piston part 631 pushes the hydraulic oil of the buffer part 621 so that the hydraulic oil flows through the orifice structure into the space at the rear end of the piston part 631, and at this time, the hydraulic oil As the shock absorber cylinder 62 is inserted at a slow speed with a rebound pressure of , the shock applied to the shock absorber cylinder 62 is alleviated and eliminated.
- the shock absorbing cylinder 62 advances with the elastic force of the compression spring 64 and returns to its original position.
- the hydraulic oil flows back into the space at the front end of the piston part 631 and is filled.
- the hydraulic stopper 60 absorbs shock generated while the valve rotates at a high speed and then stops when the valve rotates, particularly when the emergency return means 30 operates, thereby preventing damage to parts of the actuator. do.
- the rotation angle and speed of the valve can be easily controlled.
- case (C) is assembled by combining the upper and lower casings (C1, C2) with a bolt (B) and a nut (N), and the nut (N) can be loosened due to operating vibration, etc., according to the present invention.
- 6A and 6B further include a means for preventing loosening of the nut, so as to more firmly fix the bolt (B) to increase bonding force.
- a coupling portion N11 that is elastically supported in the direction of the ratchet tooth portion C31 inside the nut N and protrudes and protrudes from the front surface of the nut N to be engaged with the ratchet tooth portion C31; and
- a ratchet bar (N1) composed of a pushing portion (N13) extending to the rear of the portion (N11) and having a cam groove (N12) inclined upward from the inside to the outside on one surface;
- a pressing portion N21 that is elastically supported from the inside of the nut N toward one of the hexagonal surfaces of the nut N and protrudes into the hexagonal surface, and is extended and connected to the lower portion of the pressing portion N21 to form the pushing portion
- a push bar (N2) composed of a pressing part (N23) having a pressing protrusion (N22) inserted into the cam groove (N12) on the other surface and in contact with one surface of (N13) in a direction orthogonal to the other surface.
- the ratchet tooth portion C31 protrudes toward the rear while the teeth having an inclined surface inclined upward in the tightening direction of the nut N are circularly arranged along the circumference of the screw hole C3.
- the ratchet bar (N1) is inserted into the protruding groove formed on the front surface of the nut (N), and the rear end of the pushing part (N13) is supported by a first spring (N3), so that the coupling part (N11) is the nut ( N) protrudes from the front.
- the push bar (N2) is inserted into a protruding groove formed on one of the hexagonal surfaces of the nut (N), and the lower end of the pressing part (N23) is supported by a second spring (N4), so that the pressing part (N21) It protrudes from the hexagonal surface of the nut N, and the pressing portion N21 is formed in a hemispherical shape.
- the nut (N) is fastened to the threaded portion (152) and the coupling portion (N11) contacts the ratchet tooth portion (C31), the ratchet bar (N1) protrudes forward and backward, and the coupling portion (N11) is ratchet toothed After being completely tightened through the portion C31, the nut N is not loosened due to vibration or the like as the fastening portion N11 catches on one of the teeth of the ratchet tooth portion C31.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Braking Arrangements (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
Description
Claims (4)
- 모터로부터 동력을 전달받아 회전하는 구동축;상기 구동축에 의해 회전하여 밸브를 개폐하는 종동축;상기 종동축으로 전달되는 회전력을 감속시키되, 상기 구동축에 구비된 차동 유성기어 감속기를 포함한 감속수단; 및탄성체, 상기 탄성체의 탄성력을 회전력으로 전환시켜 전달하며 상기 차동 유성기어 감속기에 치합되는 작동축을 구비하여, 전원 차단 시 상기 밸브를 회전 복귀시키는 비상 복귀수단;을 포함하는 것을 특징으로 하는 컴팩트 스프링 리턴 액추에이터.
- 제 1 항에 있어서,상기 비상 복귀수단의 작동을 제한하는 2개 이상의 전자 브레이크를 구비하되, 하나의 전자 브레이크가 온 작동할 때 나머지 전자 브레이크는 오프 작동하도록 각 전자 브레이크의 온/오프 작동이 일정 시간마다 번갈아서 동작되게 세팅되어 있는 브레이킹 수단;을 포함하는 것을 특징으로 하는 컴팩트 스프링 리턴 액추에이터.
- 제 1 항에 있어서,상기 탄성체는 S형 스파이럴 스프링으로 구성되는 것을 특징으로 하는 컴팩트 스프링 리턴 액추에이터.
- 제 1 항에 있어서,상기 감속수단은,상기 구동축에 구비된 제1 차동 유성기어 감속기,상기 작동축에 구비되고, 상기 제1 차동 유성기어 감속기에 치합되어 연결된 제2 차동 유성기어 감속기를 포함하는 것을 특징으로 하는 컴팩트 스프링 리턴 액추에이터.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2213346.6A GB2621638A (en) | 2021-05-26 | 2022-05-25 | Compact spring return actuator |
CN202280002319.0A CN115698569A (zh) | 2021-05-26 | 2022-05-25 | 紧凑型弹簧复位执行机构 |
US17/874,538 US20220381363A1 (en) | 2021-05-26 | 2022-07-27 | Compact spring return actuator |
Applications Claiming Priority (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20210067352 | 2021-05-26 | ||
KR10-2021-0067352 | 2021-05-26 | ||
KR10-2021-0123319 | 2021-09-15 | ||
KR1020210123320A KR102379152B1 (ko) | 2021-05-26 | 2021-09-15 | S형 스파이럴 스프링을 사용한 컴팩트 스프링 리턴 액추에이터 |
KR10-2021-0123320 | 2021-09-15 | ||
KR1020210123319A KR102379150B1 (ko) | 2021-05-26 | 2021-09-15 | 전자 브레이크를 2개 이상 구비한 컴팩트 스프링 리턴 액추에이터 |
KR10-2021-0123318 | 2021-09-15 | ||
KR10-2021-0123321 | 2021-09-15 | ||
KR1020210123321A KR102379151B1 (ko) | 2021-05-26 | 2021-09-15 | S형 스파이럴 스프링이 액추에이터 감속기 중간에 위치한 컴팩트 스프링 리턴 액추에이터 |
KR1020210123318A KR102379149B1 (ko) | 2021-05-26 | 2021-09-15 | 2개 이상의 차동유성감속기를 구비한 컴팩트 스프링 리턴 액추에이터 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17/874,538 Continuation-In-Part US20220381363A1 (en) | 2021-05-26 | 2022-07-27 | Compact spring return actuator |
Publications (1)
Publication Number | Publication Date |
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WO2022250441A1 true WO2022250441A1 (ko) | 2022-12-01 |
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Family Applications (1)
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PCT/KR2022/007404 WO2022250441A1 (ko) | 2021-05-26 | 2022-05-25 | 컴팩트 스프링 리턴 액추에이터 |
Country Status (2)
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KR (4) | KR102379149B1 (ko) |
WO (1) | WO2022250441A1 (ko) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102379149B1 (ko) * | 2021-05-26 | 2022-03-28 | 주식회사 아이토크콘트롤즈 | 2개 이상의 차동유성감속기를 구비한 컴팩트 스프링 리턴 액추에이터 |
GB2621638A (en) * | 2021-05-26 | 2024-02-21 | I Tork Controls Co Ltd | Compact spring return actuator |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05306784A (ja) * | 1992-04-30 | 1993-11-19 | Matsushita Electric Works Ltd | バルブ装置 |
JP2002281684A (ja) * | 2001-01-11 | 2002-09-27 | Seiko Epson Corp | 弱電用発電装置 |
KR20070044423A (ko) * | 2007-04-09 | 2007-04-27 | 효성전기주식회사 | 자동차용 고비율 감속기 |
JP2012219895A (ja) * | 2011-04-07 | 2012-11-12 | Kawaden:Kk | 電動緊急遮断弁 |
KR20200110974A (ko) * | 2019-03-18 | 2020-09-28 | 주식회사 아이토크콘트롤즈 | 밸브 개폐용 액추에이터 |
KR102379150B1 (ko) * | 2021-05-26 | 2022-03-28 | 주식회사 아이토크콘트롤즈 | 전자 브레이크를 2개 이상 구비한 컴팩트 스프링 리턴 액추에이터 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0334530Y2 (ko) * | 1986-01-30 | 1991-07-22 | ||
KR100734394B1 (ko) * | 2006-09-07 | 2007-07-02 | 주식회사 은하양행 | 스프링 리턴 밸브 액추에이터 |
JP2012198203A (ja) * | 2011-03-07 | 2012-10-18 | Takion Co Ltd | 回転体を用いた振動エネルギー変換発電システム |
JP6426390B2 (ja) * | 2014-07-17 | 2018-11-21 | 株式会社カワデン | 遮断弁 |
KR101535930B1 (ko) * | 2015-02-24 | 2015-07-10 | 주식회사 동희홀딩스 | 연료전지차량의 냉시동용 고 감속비 공기배압조절밸브 |
JP6877749B2 (ja) * | 2017-09-28 | 2021-05-26 | 株式会社不二工機 | 電動弁 |
JP6978067B2 (ja) * | 2018-05-10 | 2021-12-08 | 株式会社カワデン | 電動弁 |
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Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05306784A (ja) * | 1992-04-30 | 1993-11-19 | Matsushita Electric Works Ltd | バルブ装置 |
JP2002281684A (ja) * | 2001-01-11 | 2002-09-27 | Seiko Epson Corp | 弱電用発電装置 |
KR20070044423A (ko) * | 2007-04-09 | 2007-04-27 | 효성전기주식회사 | 자동차용 고비율 감속기 |
JP2012219895A (ja) * | 2011-04-07 | 2012-11-12 | Kawaden:Kk | 電動緊急遮断弁 |
KR20200110974A (ko) * | 2019-03-18 | 2020-09-28 | 주식회사 아이토크콘트롤즈 | 밸브 개폐용 액추에이터 |
KR102379150B1 (ko) * | 2021-05-26 | 2022-03-28 | 주식회사 아이토크콘트롤즈 | 전자 브레이크를 2개 이상 구비한 컴팩트 스프링 리턴 액추에이터 |
KR102379149B1 (ko) * | 2021-05-26 | 2022-03-28 | 주식회사 아이토크콘트롤즈 | 2개 이상의 차동유성감속기를 구비한 컴팩트 스프링 리턴 액추에이터 |
KR102379151B1 (ko) * | 2021-05-26 | 2022-03-28 | 주식회사 아이토크콘트롤즈 | S형 스파이럴 스프링이 액추에이터 감속기 중간에 위치한 컴팩트 스프링 리턴 액추에이터 |
KR102379152B1 (ko) * | 2021-05-26 | 2022-03-28 | 주식회사 아이토크콘트롤즈 | S형 스파이럴 스프링을 사용한 컴팩트 스프링 리턴 액추에이터 |
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