CN110864153B - Locking structure of electric actuator of multi-rotary valve - Google Patents
Locking structure of electric actuator of multi-rotary valve Download PDFInfo
- Publication number
- CN110864153B CN110864153B CN201810984870.5A CN201810984870A CN110864153B CN 110864153 B CN110864153 B CN 110864153B CN 201810984870 A CN201810984870 A CN 201810984870A CN 110864153 B CN110864153 B CN 110864153B
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- CN
- China
- Prior art keywords
- locking
- gear
- clutch
- connecting rod
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- F16K31/05—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor specially adapted for operating hand-operated valves or for combined motor and hand operation
-
- 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
- F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
-
- 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
Abstract
The invention provides a locking structure of an electric actuator of a multi-rotary valve, which comprises a connecting rod, wherein the connecting rod comprises a spline section, and a torque gear capable of moving along the length direction of the connecting rod is sleeved on the spline section; a locking unit including a locking ring capable of holding the connecting rod tightly; the manual gear is arranged on the peripheral side of the torque gear, and a gap is reserved between the manual gear and the torque gear; a clutch unit including a clutch gear capable of simultaneously engaging or disengaging the torque gear and the manual gear; the locking unit does not hug the connecting rod when the manual gear and the torque gear are meshed with the clutch gear, and the locking unit hugs the connecting rod when the clutch gear is separated from the manual gear and the torque gear. According to the locking structure of the multi-rotary valve electric actuator, the clutch unit is matched with the locking unit, so that the electric actuator can rapidly adjust a valve in a manual mode, and meanwhile, the connecting rod can be locked after adjustment, and the state of the valve changes in a mode.
Description
Technical Field
The invention belongs to the field of valve electric actuators, and particularly relates to a locking structure of a multi-rotation valve electric actuator.
Background
The valve is opened and closed through lifting or lowering the valve rod to change the valve, and the existing multi-rotary valve electric actuator usually utilizes the rotation of the screw structure to enable the screw structure to generate displacement to control the opening and closing of the valve, but when the electric actuator is powered off, the electric actuator is required to be manually operated to adjust the opening and closing of the valve or the valve opening amount, the electric actuator is not beneficial to locking, so that the valve is not tightly closed or the fluid flow is changed, and the production is influenced.
Disclosure of Invention
In view of the above, the present invention is directed to a locking structure of an electric actuator of a multi-turn valve, so as to lock a valve rod after manually adjusting the valve under the condition of power failure, and prevent the valve rod from sliding down due to self gravity.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
a locking structure of an electric actuator of a multi-rotary valve comprises
The connecting rod comprises a spline section, and a torque gear capable of moving along the length direction of the connecting rod is sleeved on the spline section;
a locking unit including a locking ring capable of holding the connecting rod tightly;
the manual gear is arranged on the peripheral side of the torque gear, and a gap is reserved between the manual gear and the torque gear;
a clutch unit including a clutch gear capable of simultaneously engaging or disengaging the torque gear and the manual gear;
the locking unit does not hug the connecting rod when the manual gear and the torque gear are meshed with the clutch gear, and the locking unit hugs the connecting rod when the clutch gear is separated from the manual gear and the torque gear. The valve rod of valve is connected with the connecting rod, and the locking unit breaks away from the connecting rod under the manual mode of electric actuator, makes manual mode operation lighter, will utilize the locking ring to hold the connecting rod tightly after manual adjustment valve simultaneously, prevents that the valve from changing the state because of self reason.
Further, the locking ring comprises two locking petals which can be mutually close to or far away from each other, a locking rod extends out of the end part of each locking petal, and the tail ends of the two locking rods are mutually far away from each other to form a locking gap;
a trapezoid round platform can enter the locking gap, and the side wall of the trapezoid round platform can tightly prop against the two locking rods. For the locking ring to be able to be completely disengaged from the connecting rod in manual mode.
Further, each locking rod middle part all is equipped with the pin joint, is equipped with a spring between two locking rods, the both ends of spring are supported respectively between pin joint and the locking lamella of two locking rods. And the two locking petals are separated when the trapezoid boss is separated from the locking gap.
Further, two limiting nails extend out of the two locking rods respectively, and two ends of the spring are sleeved on the two limiting nails respectively.
Further, the clutch unit further comprises a clutch rod, one end of the clutch rod is fixedly connected with the clutch gear coaxially, the trapezoid round table is fixedly connected with the other end of the clutch rod, and the clutch rod can reciprocate along the length direction.
Further, the clutch unit further comprises a U-shaped frame and a clutch rod sleeve, a slotted hole is formed in the two end portions of one side of the opening of the U-shaped frame, the middle of the clutch rod sleeve is hinged to the U-shaped frame at the slotted hole, one end of the clutch rod sleeve is in contact with the trapezoid round table, and the other end of the clutch rod sleeve is in contact with the clutch gear.
Furthermore, one side of the U-shaped frame, which is closed, is connected with a handle for conveniently controlling the clutch lever to move up and down.
Further, the manual gear is coaxially connected with a hand wheel. For controlling the rotation of the manual gear.
Further, the connecting rod further comprises a threaded section, and the locking ring can tightly hold the connecting rod at the threaded section. The connecting rod can still move up and down under the drive of external force under the locking state.
Furthermore, an anti-slip strip is fixedly arranged on the inner side of the locking valve.
Compared with the prior art, the locking structure of the multi-rotary valve electric actuator has the following advantages:
the clutch rod and the locking rod are matched, so that the electric actuator can rapidly adjust the valve in a manual mode, and can lock the connecting rod after adjustment, and the state of the valve changes.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of a locking unit;
fig. 3 is a cross-sectional view of the clutch unit.
Reference numerals illustrate:
1-connecting rods; 11-spline sections; 12-thread segments; 13-torque gear; a 2-clutch unit; 21-a clutch gear; 22-handle; 23-U-shaped frame; 231-oblong holes; 24-trapezoid round table; 25-clutch lever; 26-clutch rod sleeve; a 3-locking unit; 31-a locking ring; 311-locking petals; 32-locking bar; 33-hinge point; 34-limiting nails; 35-a spring; 36-locking clearance; 37-anti-slip strips; 4-a manual gear; 41-hand wheel.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
The locking structure of the multi-rotary valve electric actuator comprises a connecting rod 1 capable of moving along the length direction, one end of the connecting rod 1 can be connected with a valve rod of a valve, the connecting rod 1 is provided with a threaded section 12 and a spline section 11, a torque gear 13 capable of moving along the length direction of the connecting rod 1 is sleeved on the spline section 11, and the torque gear 13 is provided with an internal spline so as to facilitate synchronous movement of the connecting rod 1;
the clutch unit 2 is arranged on the side of the connecting rod 1, the clutch unit 2 comprises a clutch rod 25 which is arranged in parallel with the connecting rod 1, the clutch rod 25 can move along the length direction of the clutch rod 25, one end of the clutch rod 25 is provided with a clutch gear 21, and the other end of the clutch rod is coaxially provided with a trapezoid round table 24; the clutch unit 2 further comprises a U-shaped frame 23 and a clutch rod sleeve 26, the clutch rod sleeve 26 is coaxially sleeved outside the clutch rod 25, two end parts of the opening of the U-shaped frame 23 are provided with oblong holes 231, a pin shaft penetrates through the oblong holes 231 and the side walls of the clutch rod sleeve 26, the clutch rod sleeve 26 is hinged with the U-shaped frame 23, the closed end of the U-shaped frame 23 extends out of a handle 22, the handle 22 controls the clutch rod 25 to move up and down through the U-shaped frame 23, the clutch rod sleeve 26 contacts the lower surface of the trapezoid round table 24 and the upper surface of the clutch gear 21 but does not affect the rotation of the clutch rod 25 in the clutch rod sleeve 26, the clutch gear is integrated with the clutch rod 25, and the trapezoid round table 24 is in threaded connection with the end part of the clutch rod 25.
A manual gear 4 is coaxially connected with a hand wheel 41, a gap is reserved between the manual gear 4 and the torque gear 13, the clutch gear 21 and the manual gear 4 can be meshed simultaneously, and when the hand wheel 41 is rotated, the torque gear 13 can be driven to rotate through gear transmission, then the connecting rod 1 is driven to rotate through a spline, and the connecting rod 1 moves up and down through the rotation of the threaded section 12 of the connecting rod 1.
The circumference of the connecting rod 1 is provided with a locking unit 3 capable of preventing the connecting rod 1 from rotating, the locking unit 3 comprises a locking ring 31 capable of encircling a threaded section 12 of the connecting rod 1, the locking ring 31 comprises two mutually symmetrical locking petals 311, the same ends of the two locking petals 311 extend out of locking rods 32 which are mutually parallel, the middle part of each locking rod 32 is provided with a hinging point 33, a limiting nail extends from each locking rod 32 to the other locking rod 32 between the hinging point 33 and the locking petals 311, the two limiting nails are oppositely arranged, two ends of a spring 35 are respectively sleeved on the two limiting nails, and the spring 35 is used for separating the two locking petals 311 under the state that locking is not needed; the tail parts of the two locking rods 32 extend to two sides respectively to form a locking gap 36, the trapezoidal round table 24 can be arranged in the locking gap 36, the side walls of the trapezoidal round table 24 can separate the tail parts of the locking rods 32 to two sides, the locking petals 311 at the other ends are mutually close until the screw rod section of the connecting rod 1 is tightly held, the screw rod cannot rotate and slide downwards due to dead weight and the like under the condition of no external force, and the valve opening amount is ensured.
An anti-slip strip 37 is fixedly arranged on the inner side of the locking flap 311.
The locking structure of the multi-rotary valve electric actuator further comprises a shell, wherein the handle 22 penetrates out of the shell and is hinged with the side wall of the shell, and the threaded section 12 of the connecting rod 1 is in threaded connection with the shell so as to realize the up-and-down movement of the connecting rod 1 and limit the connecting rod 1 in the rotating process of the connecting rod 1.
In the locking structure of the multi-rotary valve electric actuator, the valve rod is driven by the connecting rod 1 to control the valve to be opened and closed, and the connecting mode of the valve rod and the connecting rod 1, the connecting mode of the motor and the connecting rod 1 and the like are all in the prior art. In addition, in the electric mode, the locking ring 31 is always kept in a locked state, but the screw rotation is not affected under the intervention of the motor output shaft, namely external force, and the locking ring is similar to the matching relationship between the self-locking nut and the bolt.
In the manual mode of the electric actuator, the handle 22 is pulled first to enable the clutch lever 25 to move, the trapezoid round table 24 is separated from the locking gap 36, the spring 35 is opened outwards to enable the locking flaps 311 to be separated from each other and separated from the connecting rod 1, the locking state is released, meanwhile, the clutch gear 21 is simultaneously meshed with the manual gear 4 and the torque gear 13, so that the resistance of the electric actuator in the manual mode is reduced, after the valve is adjusted, the handle 22 is pulled, the clutch gear 21 is separated from the manual gear 4 and the torque gear 13, meanwhile, the round table is pushed into the locking gap 36, and the locking ring 31 is enabled to hold the connecting rod 1 tightly.
The hand wheel 41 is provided outside the housing.
The shell is provided with a limiting device of the handle 22, which is used for preventing the handle 22 from being turned over outwards due to self gravity and other factors, the limiting device can be arranged outside the shell to limit the handle 22 and can also be arranged in the shell to limit the hinging position of the handle 22 and the shell.
The connecting structure and the connecting mode of the end part of the connecting rod 1 and the valve rod are all the prior art, and all the parts are fixed in the shell or supported by the shell.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (6)
1. The utility model provides a many gyration valve electric actuator locking structure which characterized in that: comprising
The connecting rod (1) comprises a spline section (11), and a torque gear (13) capable of moving along the length direction of the connecting rod (1) is sleeved on the spline section (11);
the locking unit (3) comprises a locking ring (31) capable of tightly holding the connecting rod (1), the locking ring (31) comprises two locking petals (311) which can be mutually close to or far away from each other, a locking rod (32) extends out of the end part of each locking petal (311), and the tail ends of the two locking rods (32) are mutually far away from each other to form a locking gap (36);
a trapezoid round table (24) can enter the locking gap (36), and the side wall of the trapezoid round table (24) can be tightly abutted against the two locking rods (32);
a manual gear (4) provided on the circumferential side of the torque gear (13) and having a gap with the torque gear (13);
a clutch unit (2) comprising a clutch gear (21), said clutch gear (21) being capable of simultaneously engaging or simultaneously disengaging the torque gear (13) and the manual gear (4);
the clutch unit (2) further comprises a clutch rod (25), a U-shaped frame (23) and a clutch rod sleeve (26), one end of the clutch rod (25) is coaxially fixedly connected with the clutch gear (21), the other end of the clutch rod (25) is fixedly connected with the clutch rod, and the clutch rod (25) can reciprocate along the length direction; two ends of one side of the opening of the U-shaped frame (23) are provided with oblong holes (231), the middle part of the clutch rod sleeve (26) is hinged with the U-shaped frame (23) at the oblong holes (231), one end of the clutch rod sleeve (26) is contacted with the trapezoid round table (24), and the other end is contacted with the clutch gear (21);
the locking unit (3) does not hug the connecting rod (1) when the manual gear (4) and the torque gear (13) are meshed with the clutch gear (21), and the locking unit (3) hugs the connecting rod (1) when the clutch gear (21) is separated from the manual gear (4) and the torque gear (13);
the manual gear (4) is coaxially connected with a hand wheel (41).
2. The multi-turn valve electric actuator locking mechanism of claim 1, wherein: each locking rod (32) middle part all is equipped with pin joint (33), is equipped with a spring (35) between two locking rods (32), the both ends of spring (35) are supported respectively between pin joint (33) and locking lamella (311) of two locking rods (32).
3. The multi-turn valve electric actuator locking mechanism of claim 2, wherein: the two locking rods (32) extend out of a limiting nail respectively, and two ends of the spring (35) are sleeved on the two limiting nails (34) respectively.
4. The multi-turn valve electric actuator locking mechanism of claim 1, wherein: one closed side of the U-shaped frame (23) is connected with a handle (22).
5. The multi-turn valve electric actuator locking mechanism of claim 1, wherein: the connecting rod (1) further comprises a threaded section (12), and the locking ring (31) can tightly hold the connecting rod (1) on the threaded section (12).
6. The multi-turn valve electric actuator locking mechanism of claim 1, wherein: an anti-slip strip (37) is fixedly arranged on the inner side of the locking flap (311).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810984870.5A CN110864153B (en) | 2018-08-28 | 2018-08-28 | Locking structure of electric actuator of multi-rotary valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810984870.5A CN110864153B (en) | 2018-08-28 | 2018-08-28 | Locking structure of electric actuator of multi-rotary valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110864153A CN110864153A (en) | 2020-03-06 |
| CN110864153B true CN110864153B (en) | 2023-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810984870.5A Active CN110864153B (en) | 2018-08-28 | 2018-08-28 | Locking structure of electric actuator of multi-rotary valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110864153B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112503151B (en) * | 2020-12-14 | 2024-01-05 | 裕克施乐塑料制品（太仓）有限公司 | Mechanical bidirectional clutch manual-automatic rotary actuator with torque induction protection function |
| CN113251158A (en) * | 2021-05-20 | 2021-08-13 | 安徽中捷自控设备有限公司 | But intelligent electric actuator of switch after outage |
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|---|---|---|---|---|
| DE1155950B (en) * | 1962-08-24 | 1963-10-17 | Ernst Wichmann | Electric motor drive for valves, slides or the like. |
| JPS6018679A (en) * | 1983-07-10 | 1985-01-30 | Toda Kiko:Kk | Manually-operable electrically-driven rotating unit |
| CN2776674Y (en) * | 2005-03-01 | 2006-05-03 | 张金龙 | Teeth clamping type emergency braking device |
| CN201096218Y (en) * | 2007-10-04 | 2008-08-06 | 林明祥 | Valve electric activator |
| CN201258999Y (en) * | 2008-08-01 | 2009-06-17 | 常州电站辅机总厂有限公司 | Adjustment straight-stroke valve actuator |
| CN202901112U (en) * | 2012-09-18 | 2013-04-24 | 中国石油天然气股份有限公司 | Pumping unit electric push rod or electric cylinder brake device |
| CN105134986A (en) * | 2015-09-09 | 2015-12-09 | 江苏英瑞环保科技有限公司 | High-temperature flashboard valve |
| CN205956525U (en) * | 2016-04-28 | 2017-02-15 | 嘉善贯德精密锻造有限公司 | Formula of moving away to avoid possible earthquakes valve gear mechanism |
| CN107269910A (en) * | 2017-07-14 | 2017-10-20 | 北京丰茂植保机械有限公司 | Equipment for plant protection double-control valve |
| CN209604641U (en) * | 2018-08-28 | 2019-11-08 | 天津市北方阀门控制设备有限公司 | A kind of more turning valve Electric Actuator manual mode locking mechanisms |
-
2018
- 2018-08-28 CN CN201810984870.5A patent/CN110864153B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1155950B (en) * | 1962-08-24 | 1963-10-17 | Ernst Wichmann | Electric motor drive for valves, slides or the like. |
| JPS6018679A (en) * | 1983-07-10 | 1985-01-30 | Toda Kiko:Kk | Manually-operable electrically-driven rotating unit |
| CN2776674Y (en) * | 2005-03-01 | 2006-05-03 | 张金龙 | Teeth clamping type emergency braking device |
| CN201096218Y (en) * | 2007-10-04 | 2008-08-06 | 林明祥 | Valve electric activator |
| CN201258999Y (en) * | 2008-08-01 | 2009-06-17 | 常州电站辅机总厂有限公司 | Adjustment straight-stroke valve actuator |
| CN202901112U (en) * | 2012-09-18 | 2013-04-24 | 中国石油天然气股份有限公司 | Pumping unit electric push rod or electric cylinder brake device |
| CN105134986A (en) * | 2015-09-09 | 2015-12-09 | 江苏英瑞环保科技有限公司 | High-temperature flashboard valve |
| CN205956525U (en) * | 2016-04-28 | 2017-02-15 | 嘉善贯德精密锻造有限公司 | Formula of moving away to avoid possible earthquakes valve gear mechanism |
| CN107269910A (en) * | 2017-07-14 | 2017-10-20 | 北京丰茂植保机械有限公司 | Equipment for plant protection double-control valve |
| CN209604641U (en) * | 2018-08-28 | 2019-11-08 | 天津市北方阀门控制设备有限公司 | A kind of more turning valve Electric Actuator manual mode locking mechanisms |
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| CN110864153A (en) | 2020-03-06 |
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