CN108343656B - Deep sea self-adaptive clamping device and self-adaptive clamping method thereof - Google Patents
Deep sea self-adaptive clamping device and self-adaptive clamping method thereof Download PDFInfo
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- CN108343656B CN108343656B CN201810095909.8A CN201810095909A CN108343656B CN 108343656 B CN108343656 B CN 108343656B CN 201810095909 A CN201810095909 A CN 201810095909A CN 108343656 B CN108343656 B CN 108343656B
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 239000010985 leather Substances 0.000 claims abstract description 19
- 238000013016 damping Methods 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000010720 hydraulic oil Substances 0.000 claims description 9
- 239000003921 oil Substances 0.000 claims description 6
- 230000007613 environmental effect Effects 0.000 claims description 4
- 230000009189 diving Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 abstract description 7
- 238000001514 detection method Methods 0.000 description 3
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000013535 sea water Substances 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B1/00—Devices for securing together, or preventing relative movement between, constructional elements or machine parts
- F16B1/02—Means for securing elements of mechanisms after operation
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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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
- F16B2200/89—Use of a hydraulic action
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
Abstract
The invention relates to a deep sea self-adaptive clamping device and a self-adaptive clamping method thereof, the deep sea self-adaptive clamping device comprises a cylinder barrel, the open end of the cylinder barrel is connected with a piston rod through a guide sleeve, and one end of the piston rod positioned in the cylinder barrel is connected with a piston sheet, the cylinder barrel is divided into a rodless cavity and a rod cavity by the piston sheet, the outer side of the cylinder barrel is hermetically connected with a cylinder body, a first sealing cavity is formed between the cylinder body and the cylinder barrel, the first sealing cavity is communicated with the rodless cavity through a damping hole, the outer side of the cylinder barrel is connected with one end of a compensation leather bag, the other end of the compensation leather bag is connected between the guide sleeve and the cylinder barrel, and a second sealing cavity is formed between the compensation leather bag and the cylinder barrel and is communicated with the rod cavity through a through hole, the cylinder barrel and the cylinder body are respectively provided with the oil filling port and the air filling port, so that pre-tightening and displacement compensation of the device are realized, and the device is simple in structure and good in reliability.
Description
Technical Field
The invention relates to the field of pre-tightening equipment, in particular to a deep sea self-adaptive clamping device and a self-adaptive clamping method thereof.
Background
The ocean contains abundant resources, is a material source for human beings to live and develop and is also an important field of international competition. In order to detect and develop the ocean, various forms of ocean detection and development equipment are developed in various countries, including various ROVs, AUVs, manned submersible vehicles, deep sea trenching equipment, deep sea oil detection and exploitation equipment, deep sea overhaul equipment and the like. In order to perform different work tasks or to compensate for the effect of deep sea pressure variations on the deformation of the pressure resistant structure, these deep sea installations are often provided with different forms of clamping means. In a sea area with shallow water depth, because the environmental pressure is low and the deformation of a pressure-resistant structure is small, a fixed clamping device is often adopted and displacement compensation is not carried out on the clamping device; however, with the increase of the operation depth, the deformation of the pressure-resistant structure is increased continuously, and if the displacement compensation is not performed on the clamped object, potential safety hazards such as loosening and the like may occur.
The existing clamping device usually adopts a hydraulic system clamping mode to realize pre-tightening and displacement compensation of the device; the method needs to be provided with equipment such as a hydraulic pump source, a control valve, a pressure detection device, an energy accumulator and the like, needs to detect and control the compensation quantity, has multiple system elements and complex control system, and has low reliability particularly in a deep sea environment.
Disclosure of Invention
The applicant aims at the defects and carries out research and improvement to provide a deep sea self-adaptive clamping device and a self-adaptive clamping method thereof.
The technical scheme adopted by the invention is as follows:
the utility model provides a deep sea self-adaptation clamping device, includes the cylinder, the cylinder open end passes through the uide bushing and connects the piston rod, and the piston rod is located cylinder one end and connects the piston piece, falls into no pole chamber and has the pole chamber through the piston piece in the cylinder, cylinder outside sealing connection cylinder body, form first sealed chamber between cylinder body and the cylinder, and communicate through the damping hole between first sealed chamber and the no pole chamber, the cylinder outside is connected with compensation leather bag one end, and the compensation leather bag other end is connected between uide bushing and cylinder, and forms the sealed chamber of second between compensation leather bag and the cylinder, the sealed chamber of second with have the pole chamber to pass through the through-hole intercommunication, cylinder and cylinder body are seted up respectively and are filled oil mouth and gas port.
As a further improvement of the above technical solution:
the tail end of the cylinder barrel is connected with a joint bearing, and the piston rod is connected with a spherical hinge.
The utility model provides a self-adaptation clamping device self-adaptation clamping method, can make hydraulic oil send into the pole intracavity through the hydraulic fluid port, rethread inflation mouth can make high-pressure gas get into rodless chamber through first sealed chamber and damping hole, can drive the piston rod through gas and stretch out, and the drive presss from both sides tight object, and clamping device includes following operating mode:
1) and (3) water surface working condition: at the moment, the environmental pressure is almost 0, the pressure of the first sealing cavity is equal to that of the rodless cavity, the piston rod is always in an extending pre-tightening state, and the pre-tightening force is maximum at the moment, so that external loads such as water surface waves can be effectively resisted;
2) diving conditions are as follows: when the device is submerged, the water pressure is continuously increased, the clamped object is contracted, the high-pressure air in the rodless cavity pushes the piston rod to continuously extend out, the clamping device is always attached to and pre-tightened with the object, and meanwhile, the hydraulic oil in the rod cavity enters the second sealing cavity through the through hole to enable the compensation leather bag to expand;
3) the floating working condition is as follows: the floating is realized, the water pressure is gradually reduced, the clamped object expands, the piston rod retracts due to expansion thrust, the clamping device is always attached to and pre-tightened with the object, at the moment, the gas in the first sealing cavity and the rodless cavity is compressed, the pressure rises, the compensating leather bag is compressed by the ambient pressure, and the hydraulic oil in the second sealing cavity flows back into the rod cavity through the through hole, so that the volume compensation of the rod cavity is realized;
4) dynamic load working condition: the dynamic load is loaded on the piston rod, namely the gas in the rodless cavity can be compressed through the piston sheet, the gas in the rodless cavity can enter the first sealing cavity through the damping hole, and the instantaneous rigidity generated by the gas in the rodless cavity is increased under the damping action of the damping hole, so that the external load can be effectively resisted.
The invention has the following beneficial effects: 1) one end of the clamping device is connected with the spherical hinge, and the other end of the clamping device is connected with the joint bearing, so that the direction self-adaptive compensation of axial displacement, radial displacement and torsional displacement of a clamped object can be realized; 2) the deep sea self-adaptive clamping device has the advantages that the pre-tightening force is maximum under the water surface working condition, the external load can be effectively resisted, the pre-tightening force is continuously reduced along with the increase of the water depth under the underwater working condition, and the load borne by the surface of a clamped object can be effectively reduced.
Drawings
Fig. 1 is a sectional view of a deep sea adaptive clamping device provided by the invention.
In the figure: 1. a cylinder barrel; 11. a rodless cavity; 12. a rod cavity; 13. an oil filling port; 14. a knuckle bearing; 2. a guide sleeve; 3. a piston rod; 31. a piston plate; 32. spherical hinge; 4. a cylinder body; 41. a first sealed chamber; 42. an inflation inlet; 5. a damping hole; 6. compensating the leather bag; 61. a second sealed chamber; 7. and a through hole.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in figure 1, the deep sea self-adaptive clamping device of the embodiment comprises a cylinder barrel 1, wherein the open end of the cylinder barrel 1 is connected with a piston rod 3 through a guide sleeve 2, and one end of the piston rod 3 positioned in the cylinder barrel 1 is connected with a piston sheet 31, the interior of the cylinder barrel 1 is divided into a rodless cavity 11 and a rod cavity 12 by the piston sheet 31, the outer side of the cylinder barrel 1 is hermetically connected with a cylinder body 4, a first sealed cavity 41 is formed between the cylinder body 4 and the cylinder barrel 1, the first sealing cavity 41 is communicated with the rodless cavity 11 through a damping hole 5, the outer side of the cylinder barrel 1 is connected with one end of a compensation leather bag 6, the other end of the compensation leather bag 6 is connected between the guide sleeve 2 and the cylinder barrel 1, and a second sealing cavity 61 is formed between the compensation leather bag 6 and the cylinder barrel 1, the second sealing cavity 61 is communicated with the rod cavity 12 through a through hole 7, the cylinder barrel 1 and the cylinder body 4 are respectively provided with an oil charging port 13 and an air charging port 42, the tail end of the cylinder barrel 1 is connected with a joint bearing 14, and the piston rod 3 is connected with a spherical hinge 32.
According to the self-adaptive clamping method of the self-adaptive clamping device, hydraulic oil can be sent into the rod cavity 12 through the oil filling port 13, high-pressure gas can enter the rodless cavity 11 through the first sealing cavity 41 and the damping hole 5 through the air filling port 42, the piston rod 3 can be driven to stretch out through the high-pressure gas, a clamped object is driven to be clamped, the clamping device comprises a water surface working condition, a submergence working condition, a floating working condition and a dynamic load working condition, for convenience of understanding, the maximum pressure of a seawater environment is 10MPa, the pre-charging pressure of the clamping device is 15MPa, the area of the piston sheet 31 is S, and the following four working conditions are respectively introduced:
1) and (3) water surface working condition: at the moment, the environmental pressure is almost 0, the pressure of the first sealing cavity 41 is equal to that of the rodless cavity 11, the piston rod 3 is always in an extending pre-tightening state, the pre-tightening force is the maximum at the moment and is 15MPa multiplied by S, and external loads such as water surface waves and the like can be effectively resisted;
2) diving conditions are as follows: when the underwater vehicle dives, the water pressure is continuously increased, a clamped object contracts, high-pressure air in the rodless cavity 11 pushes the piston rod 3 to continuously extend out, the clamping device is always attached to the object and is pre-tightened, meanwhile, hydraulic oil in the rod cavity 12 enters the second sealing cavity 61 through the through hole 7, the compensation leather bag 6 expands, the pressure in the rod cavity 12 is ambient pressure p0, and the pre-tightening force is (p1-p0) MPa multiplied by S if the pressure in the rodless cavity 11 is p 1;
3) the floating working condition is as follows: the floating force is enabled to be reduced, the water pressure is reduced gradually, the clamped object expands, the piston rod 3 retracts due to expansion thrust, the clamping device is always attached to the object and pre-tightened, at the moment, the gas in the first sealing cavity 41 and the rodless cavity 11 is compressed, the pressure rises, the compensating leather bag 6 is compressed by the ambient pressure, the hydraulic oil in the second sealing cavity 61 flows back into the rod cavity 12 through the through hole 7, the compensation of the volume of the rod cavity 12 is realized, the pressure of the rod cavity 12 is the ambient pressure p2, and the pre-tightening force is (p3-p2) MPa multiplied by S if the pressure of the rodless cavity 11 is p3 at the moment;
4) dynamic load working condition: the dynamic load is loaded on the piston rod 3, namely, the gas in the rodless cavity 11 can be compressed through the piston plate 31, the gas in the rodless cavity 11 can enter the first sealing cavity 41 through the damping hole 5, the damping effect of the damping hole 5 is avoided, the instantaneous rigidity generated by the gas in the rodless cavity 11 is increased, and the external load can be effectively resisted.
The foregoing description is illustrative of the present invention and is not to be construed as limiting thereof, the scope of the invention being defined by the appended claims, which may be modified in any manner without departing from the basic structure thereof.
Claims (1)
1. A self-adaptive clamping method of a deep sea self-adaptive clamping device comprises the deep sea self-adaptive clamping device, and the self-adaptive clamping method is specifically structurally characterized in that: comprises a cylinder barrel (1), wherein the open end of the cylinder barrel (1) is connected with a piston rod (3) through a guide sleeve (2), the piston rod (3) is positioned at one end in the cylinder barrel (1) and is connected with a piston sheet (31), the cylinder barrel (1) is divided into a rodless cavity (11) and a rod cavity (12) through the piston sheet (31), the outer side of the cylinder barrel (1) is hermetically connected with a cylinder body (4), a first sealed cavity (41) is formed between the cylinder body (4) and the cylinder barrel (1), the first sealed cavity (41) is communicated with the rodless cavity (11) through a damping hole (5), the outer side of the cylinder barrel (1) is connected with one end of a compensation leather bag (6), the other end of the compensation leather bag (6) is connected between the guide sleeve (2) and the cylinder barrel (1), a second sealed cavity (61) is formed between the compensation leather bag (6) and the cylinder barrel (1), and the rod cavity (12) are communicated through a through hole (7, the cylinder barrel (1) and the cylinder body (4) are respectively provided with an oil charging port (13) and an air charging port (42); the tail end of the cylinder barrel (1) is connected with a joint bearing (14), and the piston rod (3) is connected with a spherical hinge (32);
can make hydraulic oil send into through filling hydraulic fluid port (13) have pole chamber (12) in, rethread inflation mouth (42) can make high-pressure gas get into rodless chamber (11) through first sealed chamber (41) and damping hole (5), can drive piston rod (3) through gas and stretch out, and the drive presss from both sides tight object, and clamping device includes following operating mode:
1) and (3) water surface working condition: at the moment, the environmental pressure is almost 0, the pressure of the first sealing cavity (41) is equal to that of the rodless cavity (11), the piston rod (3) is always in an extending and pre-tightening state, and the pre-tightening force is maximum at the moment, so that external loads such as water surface waves and the like can be effectively resisted;
2) diving conditions are as follows: when the underwater vehicle dives, the water pressure is continuously increased, the clamped object contracts, high-pressure air in the rodless cavity (11) pushes the piston rod (3) to continuously extend out, the clamping device is always attached to and pre-tightened on the object, and meanwhile, hydraulic oil in the rod cavity (12) enters the second sealing cavity (61) through the through hole (7) to enable the compensation leather bag (6) to expand;
3) the floating working condition is as follows: the floating is realized, the water pressure is gradually reduced, the clamped object expands, the piston rod (3) retracts due to expansion thrust, the clamping device is always attached to and pre-tightened with the object, at the moment, the gas in the first sealing cavity (41) and the rodless cavity (11) is compressed, the pressure rises, the compensating leather bag (6) is compressed by the ambient pressure, the hydraulic oil in the second sealing cavity (61) flows back into the rod cavity (12) through the through hole (7), and the volume compensation of the rod cavity (12) is realized;
dynamic load working condition: the dynamic load is loaded on the piston rod (3), namely, the gas in the rodless cavity (11) can be compressed through the piston plate (31), the gas in the rodless cavity (11) can enter the first sealing cavity (41) through the damping hole (5), the damping effect of the damping hole (5) is avoided, the instantaneous rigidity generated by the gas in the rodless cavity (11) is increased, and the external load can be effectively resisted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810095909.8A CN108343656B (en) | 2018-01-31 | 2018-01-31 | Deep sea self-adaptive clamping device and self-adaptive clamping method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810095909.8A CN108343656B (en) | 2018-01-31 | 2018-01-31 | Deep sea self-adaptive clamping device and self-adaptive clamping method thereof |
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| Publication Number | Publication Date |
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| CN108343656A CN108343656A (en) | 2018-07-31 |
| CN108343656B true CN108343656B (en) | 2020-04-07 |
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| CN201810095909.8A Active CN108343656B (en) | 2018-01-31 | 2018-01-31 | Deep sea self-adaptive clamping device and self-adaptive clamping method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113864293B (en) * | 2021-08-27 | 2023-07-25 | 武汉船用机械有限责任公司 | Hydraulic reservoir brake apparatus and method of use thereof |
| CN115892398B (en) * | 2022-11-01 | 2023-10-31 | 深海技术科学太湖实验室 | Deep sea remote clamping cutter and use method thereof |
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| CN1721711A (en) * | 2004-07-15 | 2006-01-18 | 卢才美 | Hydraulic cylinder and lifting hydraulic cylinder for oil pressure and water pressure |
| CN101566182A (en) * | 2009-05-26 | 2009-10-28 | 长沙矿山研究院 | Deep sea pressure compensator |
| CN102383729A (en) * | 2011-07-21 | 2012-03-21 | 中国海洋石油总公司 | Slurry power bidirectional control hydraulic system for drilling and operation method thereof |
| CN102562706A (en) * | 2012-02-23 | 2012-07-11 | 无锡亿利大机械有限公司 | Integrated servo cylinder |
| CN202451499U (en) * | 2012-02-23 | 2012-09-26 | 无锡亿利大机械有限公司 | Integrated servo oil cylinder |
| CN104819338A (en) * | 2015-05-04 | 2015-08-05 | 中国海洋石油总公司 | Deep sea valve execution mechanism of leather bag type two-way pressure dynamic balance compensation device |
| CN204961669U (en) * | 2015-06-15 | 2016-01-13 | 万向钱潮股份有限公司 | Liquid electricity is presented can formula semi active contro shock absorber system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204677668U (en) * | 2015-04-27 | 2015-09-30 | 哈尔滨工程大学 | A kind of passive passive type hydraulic damping device |
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2018
- 2018-01-31 CN CN201810095909.8A patent/CN108343656B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1721711A (en) * | 2004-07-15 | 2006-01-18 | 卢才美 | Hydraulic cylinder and lifting hydraulic cylinder for oil pressure and water pressure |
| CN101566182A (en) * | 2009-05-26 | 2009-10-28 | 长沙矿山研究院 | Deep sea pressure compensator |
| CN102383729A (en) * | 2011-07-21 | 2012-03-21 | 中国海洋石油总公司 | Slurry power bidirectional control hydraulic system for drilling and operation method thereof |
| CN102562706A (en) * | 2012-02-23 | 2012-07-11 | 无锡亿利大机械有限公司 | Integrated servo cylinder |
| CN202451499U (en) * | 2012-02-23 | 2012-09-26 | 无锡亿利大机械有限公司 | Integrated servo oil cylinder |
| CN104819338A (en) * | 2015-05-04 | 2015-08-05 | 中国海洋石油总公司 | Deep sea valve execution mechanism of leather bag type two-way pressure dynamic balance compensation device |
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| CN108343656A (en) | 2018-07-31 |
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