CN109089397B - Underwater electric actuator - Google Patents
Underwater electric actuator Download PDFInfo
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- CN109089397B CN109089397B CN201811073462.0A CN201811073462A CN109089397B CN 109089397 B CN109089397 B CN 109089397B CN 201811073462 A CN201811073462 A CN 201811073462A CN 109089397 B CN109089397 B CN 109089397B
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- gland
- electric actuator
- sealing
- barrel body
- sealed
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
- H05K5/061—Hermetically-sealed casings sealed by a gasket held between a removable cover and a body, e.g. O-ring, packing
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
- H05K5/068—Hermetically-sealed casings having a pressure compensation device, e.g. membrane
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses an underwater electric actuator, which comprises an electric actuator, a protective barrel body, a first gland, a sealed cabin and a second gland, wherein the protective barrel body is provided with a first opening and a second opening; the electric actuator comprises an electric actuator body and a telescopic rod connected with the electric actuator body; the protective barrel body is sleeved on the electric actuator body; the front end of the protection barrel body is fixedly connected with the first gland in a sealing manner, the rear end of the protection barrel body is fixedly connected with the second gland in a sealing manner, the sealed bin is fixedly connected onto the second gland, the telescopic rod penetrates through the second gland and the sealed bin, and the telescopic rod is connected with the second gland in a sealing manner and the protection barrel body in a sealing manner; a sponge thin insulating oil filling area, a rubber sleeve and a viscous insulating fat asbestos ring are coaxially arranged in the sealed bin from outside to inside in sequence; the side wall of the sealed cabin is provided with a sealed cabin side opening, and a third gland is arranged at the opening of the sealed cabin. The underwater electric actuator can improve the dynamic sealing performance of the underwater actuator and overcome the defect that the underwater electric actuator is easy to leak.
Description
Technical Field
The invention relates to the technical field of ocean deepwater engineering, in particular to an underwater electric actuator.
Background
With the deepening of people's understanding of nature, the importance of the ocean to human life gradually emerges, and the 21 st century is the century of ocean development. The underwater electric actuator is generally used for performing the functions of moving, clamping, grabbing, lifting and the like of objects in underwater ocean engineering. The common underwater electric actuator has poor underwater dynamic sealing performance, so that seawater easily flows into the electric actuator to damage the electric actuator, and the service life of the underwater electric actuator is further shortened.
Disclosure of Invention
The invention aims to provide an underwater electric actuator, which aims to solve the problems in the prior art, improve the dynamic sealing performance of the underwater electric actuator and prolong the service life of the underwater electric actuator.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides an underwater electric actuator which comprises an electric actuator, a protective barrel body, a first gland, a sealed cabin and a second gland, wherein the protective barrel body is provided with a first end and a second end; the electric actuator comprises an electric actuator body and a telescopic rod connected with the electric actuator body; the protective barrel body is sleeved on the electric actuator body; the front end of the protection barrel body is fixedly connected with the first gland in a sealing manner, the rear end of the protection barrel body is fixedly connected with the second gland in a sealing manner, the sealed bin is fixedly connected onto the second gland, the telescopic rod penetrates through the second gland and the sealed bin, and the telescopic rod is connected with the second gland in a sealing manner and the protection barrel body in a sealing manner; a sponge thin insulating oil filling area, a rubber sleeve and a viscous insulating fat asbestos ring are coaxially arranged in the sealed bin from outside to inside in sequence; the side wall of the sealed bin is provided with a sealed bin side hole, a third gland is arranged at the sealed bin side hole, and an isolating membrane for sealing the sealed bin side hole is arranged between the third gland and the sealed bin.
Preferably, first sealing rings are arranged between the front end of the protection barrel body and the first gland as well as between the rear end of the protection barrel body and the second gland; the contact department of telescopic link front end and second gland and the contact department of telescopic link rear end and sealed storehouse rear end all are provided with two second sealing washers.
Preferably, the isolating membrane is capable of rapidly transferring the transferred water pressure to the viscous insulating asbestos ring.
Preferably, a fourth sealing ring is arranged between the side hole of the sealing bin and the isolating membrane.
Preferably, a third sealing ring is arranged between the second gland and the front end face of the sealing bin.
Preferably, the protective barrel body is a corrosion-resistant barrel body.
Preferably, a first gland threaded hole is formed in the first gland, a water sealing joint seat is installed in the first gland threaded hole and electrically connected with the electric actuator, and the water sealing joint seat is used for externally connecting a water sealing joint plug.
Preferably, the inner end face of the first gland is in threaded connection with an adjusting screw, and the adjusting screw is used for positioning the end part of the electric actuator.
Preferably, the viscous insulating grease asbestos ring is a viscous silicone oil asbestos ring.
Preferably, the first sealing ring, the second sealing ring, the third sealing ring and the fourth sealing ring are all O-shaped sealing rings.
Compared with the prior art, the invention has the following technical effects:
the invention provides an underwater electric actuator, which is characterized in that after the electric actuator is integrally protected by a protection barrel body, a sealing bin is arranged at the rear end of the protection barrel body, a sponge thin insulating oil filling area, a rubber sleeve and a viscous insulating asbestos ring are coaxially arranged in the sealing bin from outside to inside in sequence, and the side wall of the sealing bin is provided with a sealing bin side hole and is provided with an isolating membrane. According to the arrangement, when water enters from the opening on the side wall of the sealed cabin, the isolating membrane is compressed towards the inner sealed cabin, and oil pressure is increased due to the fact that oil in a sponge thin insulating oil filling area and oil in a viscous insulating grease asbestos ring are respectively filled in the sealed cabin and compressed, so that the internal pressure and the external pressure of the sealed cabin are balanced, and leakage can be greatly reduced due to a sliding surface gap between the telescopic rod and the sealed cabin in dynamic friction; the inner cavity of the sealed bin is provided with a rubber sleeve, the rubber sleeve divides the sealed inner bin into two areas, the outer layer is a sponge thin insulating oil filling area, the inner cavity is a viscous insulating grease asbestos ring, the outer layer thin insulating oil micromolecules have good fluidity, water pressure transmitted by an isolating membrane can be quickly transmitted to the inner cavity of the rubber sleeve, the inner cavity adopts the viscous insulating grease asbestos ring, dynamic seal leakage can be effectively reduced due to the fact that the insulating grease molecules are large in molecular weight and not good in fluidity, and when external pressure is transmitted to the inner cavity of the sealed bin, the viscous insulating grease asbestos ring is subjected to weak deformation to prevent insulating oil or leaked water in an outer area from entering the inner cavity of the underwater actuator; if the inner cavity of the sealed cabin has a little leakage, the grease is converted into viscous insulating grease which is not easy to leak and is harmless to the electric actuator. Therefore, the dynamic sealing performance of the underwater actuator is improved, and the technical effect of preventing the leakage of the underwater electric actuator is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of an explosion assembly of an underwater electric actuator provided by the present invention;
FIG. 2 is a schematic view of a full-section structure of an underwater electric actuator provided by the present invention;
wherein: 1-a watertight joint bus, 2-a bolt, 3-a watertight joint seat, 4-a first gland, 5-an adjusting screw, 6-a first sealing ring, 7-a protective barrel body, 8-a nut, 9-a bolt, 10-a second sealing ring, 11-a second gland, 12-a viscous insulating fat asbestos ring, 13-a rubber sleeve, 14-a sponge thin insulating oil filling area, 15-a third sealing ring, 16-a sealing bin, 17-a bolt, 18-a third gland, 19-an isolating membrane, 20-a fourth sealing ring and 21-an electric actuator.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
The invention aims to provide an underwater electric actuator, which aims to solve the problems in the prior art, improve the dynamic sealing performance of the underwater electric actuator, avoid water inflow of the underwater electric actuator and further prolong the service life of the underwater electric actuator.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in FIGS. 1-2: the embodiment provides an underwater electric actuator, which comprises an electric actuator 21, a protective barrel body 7, a first gland 4, a sealed cabin 16 and a second gland 11; the electric actuator 21 comprises an electric actuator body and a telescopic rod connected with the electric actuator body; the protective barrel body 7 is sleeved on the electric actuator body; the front end of the protection barrel body is fixedly connected with the first gland 4 in a sealing way, the rear end of the protection barrel body 7 is fixedly connected with the second gland 11 in a sealing way, the sealed bin 16 is fixedly connected onto the second gland 11, the telescopic rod penetrates through the second gland 11 and the sealed bin 16, and the telescopic rod is connected with the second gland 11 in a sealing way and the protection barrel body 7 in a sealing way; a sponge thin insulating oil filling area 14, a rubber sleeve 13 and a viscous insulating fat asbestos ring 12 are coaxially arranged in the sealed bin 16 from outside to inside in sequence; a sealed bin side hole is formed in the side wall of the sealed bin 16, a third gland 18 is installed at the position of the sealed bin side hole, and an isolating membrane 19 for closing the sealed bin side hole is arranged between the third gland 18 and the sealed bin 16; the third gland 18 is fixedly connected with the seal cabin 16 through a bolt 17.
Under the action of water pressure, the isolating membrane 19 is compressed into the sealed bin 16 by the underwater electric actuator, oil pressure is increased due to the fact that oil in the sponge thin insulating oil filling area 14 and the viscous insulating resin asbestos ring 12 in the sealed bin 16 is compressed, and when the internal pressure and the external pressure of the sealed bin 16 are balanced, leakage generated by sliding surface gaps of dynamic friction of the telescopic rod and the sealed bin 16 can be greatly reduced.
The seawater enters the inner cavity of the protective barrel body 7 and theoretically can reach the inner cavity only through the second sealing ring 10, the sponge thin insulating oil filling area 14, the viscous insulating grease asbestos ring 12 and the second sealing ring 10 between the second gland 11 and the sealed bin 16; the second sealing ring 10, the sponge thin insulating oil filling area 14, the viscous insulating fat asbestos ring 12 and the second sealing ring 10 between the second gland 11 and the sealing bin 16 form a multi-layer labyrinth blocking structure for seawater, and seawater permeation into the protective barrel body 7 can be effectively reduced.
The isolating membrane 19 is capable of rapidly transferring the transferred water pressure to the viscous insulating asbestos ring 12 inside the rubber sleeve 13.
The rubber sleeve 13 in the inner cavity of the sealed bin 16 divides the sealed bin 16 into two areas, the outer layer is a sponge thin insulating oil filling area 14, the inner cavity is a viscous insulating asbestos ring 12, and the outer layer thin insulating oil micromolecules have good fluidity and can quickly transfer the water pressure transferred by the isolating membrane 19 to the inner cavity of the rubber sleeve 13; the viscous insulating grease asbestos ring 12 of the inner cavity is made of high-molecular viscous insulating grease, due to the fact that the high molecular weight and the poor liquidity of the insulating grease, dynamic seal leakage can be effectively reduced, and after external pressure is transmitted to the viscous insulating grease asbestos ring 12 of the inner cavity, the viscous insulating grease asbestos ring 12 deforms slightly to prevent oil or leaked water in an outer sponge thin insulating oil filling area 14 from entering the inner cavity of the protection barrel body 7 of the underwater electric actuator; even if a little leakage occurs to oil or leaked water in the outer sponge thin insulating oil filling area 14, the oil or the leaked water can be converted into viscous insulating grease which is not easy to leak and is harmless to the actuator, so that the sealing performance of the underwater electric actuator is improved, and the service life of the underwater electric actuator is further prolonged.
A fourth sealing ring 20 is arranged between the side hole of the sealed cabin and the isolating film 19.
A third sealing ring 15 is arranged between the second gland 11 and the front end surface of the sealing bin 16.
The protective barrel body 7 is a corrosion-resistant barrel body and is made of corrosion-resistant materials.
A first gland threaded hole is formed in the first gland 4, a water sealing joint seat 3 is installed in the first gland threaded hole, the water sealing joint seat 3 is electrically connected with the electric actuator, and the water sealing joint seat 3 is used for externally connecting a water sealing joint plug; the first gland 4 is fixedly connected with the front end face of the protection barrel body 7 through a bolt 2 and a nut 8.
An adjusting screw 5 is connected to the inner end face of the first gland 4 in a threaded manner, and the adjusting screw 5 is used for positioning the end of the electric actuator.
The viscous insulating grease asbestos ring 12 is a viscous silicone oil asbestos ring.
The first seal ring 6, the second seal ring 10, the third seal ring 15 and the fourth seal ring 20 are all O-shaped seal rings.
The assembling method of the underwater electric actuator comprises the following steps:
the assembly method of the tail outlet end of the electric actuator comprises the following steps: the water sealing joint seat 3 is screwed into a threaded hole in the first gland 4 after being coated with threaded glue. The electric wire of the water sealing joint seat 3 is welded with the power line of the electric actuator 21, and then the heat-shrinkable tube is subjected to heat sealing; the electric actuator 21 adjusts the screw 5 to be screwed into the end threaded hole of the first gland 4 and adjusts the position of the adjusting screw 5; a first sealing ring 6 is arranged in a groove at the tail end face of the protective barrel body 7 and is fixed by sealant; the electric actuator 21 is provided with a first gland 4 which penetrates into the protective barrel body 7, and a gland 14 is locked on the protective barrel body 7 through a bolt 2 and a nut 8; and then the watertight joint bus bar 1 is inserted. And finishing the installation of the outlet end of the underwater electric actuator.
The installation method of the sealed cabin 16 is as follows: a first sealing ring 6 is additionally arranged at the other end groove of the protective barrel body 7 and is fixed by sealant; a second sealing ring 10 is installed after oil is applied to an O-shaped hole groove of a second gland 11; the telescopic rod of the electric actuator 21 passes through the O-shaped hole of the second gland 11; the telescopic rod is sleeved with a viscous insulating fat asbestos ring 12 and then sleeved with a rubber sleeve 13, and a sponge thin insulating oil filling area 14 is arranged outside the rubber sleeve 13. Sealing oil and a third sealing ring 15 are added into a large-hole end groove of the sealing bin 16; a second sealing ring 10 is additionally arranged in a small hole of the sealing bin 16 and then penetrates through the telescopic rod; the protective barrel body 7, the second gland 11 and the sealed cabin 16 are locked by a bolt 9 and a nut 8. The sealed silo 16 is installed.
The third gland 18 is assembled as follows: after sealing oil and a fourth sealing ring 20 are added into the opening groove at the side of the sealed cabin, an isolating film 19 is sealed, a third gland 18 compresses the isolating film 19, and the third gland 18 is fixed by a bolt 17; the third gland 18 is installed.
And finally, filling oil into an oil filling hole of the sealed bin 16, and sealing an oil filling port by using an adjusting screw 5 coated with thread glue. And finishing the installation of the underwater electric actuator.
In addition, the underwater electric actuator provided by the application detects the leaked thin insulating oil quantity through the oil hole after the task is executed each time, if the reduced thin insulating oil quantity exceeds the limit, the whole set of the electric actuator needs to be maintained and detected, and the electric actuator can be repeatedly used after maintenance and detection.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (10)
1. An underwater electric actuator, characterized in that: the device comprises an electric actuator, a protection barrel body, a first gland, a sealed cabin and a second gland; the electric actuator comprises an electric actuator body and a telescopic rod connected with the electric actuator body; the protective barrel body is sleeved on the electric actuator body; the front end of the protection barrel body is fixedly connected with the first gland in a sealing manner, the rear end of the protection barrel body is fixedly connected with the second gland in a sealing manner, the sealed bin is fixedly connected to the second gland, the telescopic rod penetrates through the second gland and the sealed bin, and the telescopic rod is connected with the second gland in a sealing manner and is also connected with the protection barrel body in a sealing manner; a sponge thin insulating oil filling area, a rubber sleeve and a viscous insulating fat asbestos ring are coaxially arranged in the sealed bin from outside to inside in sequence; the side wall of the sealed bin is provided with a sealed bin side hole, a third gland is installed at the position of the sealed bin side hole, and an isolating membrane for sealing the sealed bin side hole is arranged between the third gland and the sealed bin.
2. The underwater electric actuator of claim 1 wherein: first sealing rings are arranged between the front end of the protection barrel body and the first gland as well as between the rear end of the protection barrel body and the second gland; the telescopic link front end with the contact department of second gland and the telescopic link rear end with the contact department of sealed storehouse rear end all is provided with two second sealing washers.
3. The underwater electric actuator of claim 1 wherein: the isolating membrane can quickly transmit the transmitted water pressure to the viscous insulating fat asbestos ring.
4. The underwater electric actuator of claim 2 wherein: and a fourth sealing ring is arranged between the side hole of the sealing bin and the isolating membrane.
5. The underwater electric actuator of claim 4 wherein: and a third sealing ring is arranged between the second gland and the front end face of the sealing bin.
6. The underwater electric actuator of claim 1 wherein: the protective barrel body is a corrosion-resistant barrel body.
7. The underwater electric actuator of claim 1 wherein: the first gland is provided with a first gland threaded hole, a water seal joint seat is installed in the first gland threaded hole, the water seal joint seat is electrically connected with the electric actuator, and the water seal joint seat is used for externally connecting a water seal joint plug.
8. The underwater electric actuator of claim 1 wherein: and the inner end face of the first gland is in threaded connection with an adjusting screw, and the adjusting screw is used for positioning the end part of the electric actuator.
9. The underwater electric actuator of claim 1 wherein: the viscous insulating grease asbestos ring is a viscous silicone oil asbestos ring.
10. The underwater electric actuator of claim 5 wherein: the first sealing ring, the second sealing ring, the third sealing ring and the fourth sealing ring are O-shaped sealing rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811073462.0A CN109089397B (en) | 2018-09-14 | 2018-09-14 | Underwater electric actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811073462.0A CN109089397B (en) | 2018-09-14 | 2018-09-14 | Underwater electric actuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109089397A CN109089397A (en) | 2018-12-25 |
| CN109089397B true CN109089397B (en) | 2020-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811073462.0A Active CN109089397B (en) | 2018-09-14 | 2018-09-14 | Underwater electric actuator |
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| Country | Link |
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| CN (1) | CN109089397B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2020272C1 (en) * | 1991-04-22 | 1994-09-30 | Борис Александрович Кирш | Method of mounting well-head rod clamp |
| MD3188G2 (en) * | 2005-12-28 | 2007-06-30 | Государственный Университет Молд0 | Plant for adsorbent electrochemical activation |
| CN202561206U (en) * | 2011-10-27 | 2012-11-28 | 温州欧西玛自控阀门有限公司 | Electric actuator |
| CN103343819B (en) * | 2013-07-25 | 2015-10-28 | 天津津伯仪表技术有限公司 | A kind of electric actuator with underwater sealing structure |
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2018
- 2018-09-14 CN CN201811073462.0A patent/CN109089397B/en active Active
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| Publication number | Publication date |
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| CN109089397A (en) | 2018-12-25 |
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Effective date of registration: 20220315 Address after: 225100 No. 3-2 Weichai Avenue, Beishan Automobile Industrial Park, Hanjiang District, Yangzhou City, Jiangsu Province Patentee after: JIANGSU HAIBO FLUID CONTROL CO.,LTD. Address before: 273100 No.1 Xingtan Road, Qufu City, Jining City, Shandong Province Patentee before: JINING University |