CN107401612A - The non-bolted joint device of small-sized deep-sea instrument thin-wall barrel and end cap - Google Patents
The non-bolted joint device of small-sized deep-sea instrument thin-wall barrel and end cap Download PDFInfo
- Publication number
- CN107401612A CN107401612A CN201710651859.2A CN201710651859A CN107401612A CN 107401612 A CN107401612 A CN 107401612A CN 201710651859 A CN201710651859 A CN 201710651859A CN 107401612 A CN107401612 A CN 107401612A
- Authority
- CN
- China
- Prior art keywords
- end cap
- left end
- cylinder
- ring
- right end
- 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.)
- Pending
Links
- 239000013535 sea water Substances 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J13/00—Covers or similar closure members for pressure vessels in general
- F16J13/02—Detachable closure members; Means for tightening closures
- F16J13/14—Detachable closure members; Means for tightening closures attached exclusively by spring action or elastic action
-
- 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
- F16B2/00—Friction-grip releasable fastenings
- F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
- F16B2/04—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening internal, i.e. with spreading action
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present invention relates to a kind of small-sized deep-sea instrument thin-wall barrel and the non-bolted joint device of end cap, including left end cap, the first left end cap O-ring, pressure cylinder, right end cap and the first right end cap O-ring.Left end cap and right end cap are stepped cylinder body, and small cylinder is stretched into pressure cylinder, offer O-ring groove thereon；Coordinated between the outer surface of the small cylinder of left end cap and right end cap and the inner surface of pressure cylinder using gap, gap width and O-ring groove size are taken as O-ring and reliably sealed within the safety permission design load of seawater.Operation principle is to be squeezed to deform and caused expanding force and frictional force using the O-ring to seal between cylinder and end cap, cylinder and end cap are linked together securely, as long as frictional force is more than the weight of end cap, it is ensured that the tight fit between cylinder and end cap, does not produce relative motion.The present invention can realize the reliable non-bolted joint between cylinder and end cap on the premise of any weight and volume is not increased, and reach the light-weighted purpose of instrument.
Description
Technical field
The invention belongs to deep-sea monitoring instrument apparatus field, and in particular to a kind of small-sized deep-sea instrument thin-wall barrel and end cap
Non-bolted joint device.
Background technology
The housing of small-sized deep-sea instrument, including cylinder and the end cap at both ends, belong to external pressure vessel, bear the pressure of pontic
Power.According to depth is laid, the minimum of computation thickness of cylinder and end cap can be tried to achieve by external pressure vessel pressure-bearing formula.If cylinder and end
Mode is connected by screw bolts between lid, cylinder and end cap both parts are connected, then needs to open up screw thread on cylinder
Hole, this will cause the increase of wall thickness, otherwise it cannot be guaranteed that the pressure-bearing and anti-unstability ability of cylinder；If connecting bolt not bared end
Lid, then need to open up counterbore on end cap, influence other components on end cap to avoid the protrusion of bolt head.Counterbore is by spiral shell
Bolt head sinks to the shoulder hole of end cap.Mode is connected by screw bolts, the measure for needing to take in structure is：1）It is minimum in cylinder
On the basis of calculated wall thickness value, the thickness of a bolt cross section diameter is further added by；2）The thickening of end cap, ensure enough counterbores
Size；3）Or the enlarged in thickness by cylinder both ends, Thickness are minimum of computation wall thickness and diameter of bolt sum, center section
Wall thickness still maintain minimum of computation wall thickness.
The weak point of bolt connecting mode is that the weight and volume of deep-sea instrument will increase.In order to realize deep-sea instrument
Lightweight, the non-bolted joint device of small-sized deep-sea instrument thin-wall barrel and end cap proposed by the present invention, can avoid cylinder and end
The increase of lid thickness, using the O-ring to be sealed between cylinder and end cap be squeezed deformation and caused expanding force and
Frictional force, cylinder and end cap are linked together securely, as long as frictional force is more than the weight of end cap, it is ensured that cylinder and end
Tight fit between lid, does not produce relative motion.So on the premise of any weight and volume is not increased, O-ring is utilized
On the basis of original hermetic water-proof structure, the reliable non-bolted joint between cylinder and end cap is also achieved, has reached instrument
The light-weighted purpose of device.
The content of the invention
Present invention aims at the non-bolted joint device by thin-wall barrel and end cap, is sealed using original O-ring anti-
Water-bound, there is provided a kind of connection method for not increasing pressure cylinder wall thickness and ending cover thickness, pressure cylinder and end cap are reliably connected
Connect, realize the lightweight of deep-sea instrument.
The non-bolted joint device of a kind of small-sized deep-sea instrument thin-wall barrel and end cap proposed by the present invention, including left end cap
1st, the first left end cap O-ring 2a, pressure cylinder 3, the right end cap O-ring 4a of right end cap 5 and first, wherein：Left end cap 1 and right end cap
5 be stepped cylinder body, and its small cylinder is respectively protruding into the both ends of pressure cylinder 3, O is offered on left end cap 1 and right end cap 5
Type ring recess；First left end cap O-ring 2a is set in the O-ring groove of left end cap 1, and right end cap 1 is changed to set in the O-ring groove of " 5 "
Adopted between the outer surface of small cylinder of first right end cap O-ring 4a, left end cap 1 and right end cap 5 and the inner surface of pressure cylinder 3
Coordinated with gap, gap width and O-ring groove size are taken as O-ring and reliably sealed within the safety permission design load of seawater；Pressure-bearing
Risen between cylinder 3 and left end cap 1 seawater sealing function the first left end cap O-ring 2a be squeezed deformation and caused expanding force
And frictional force, pressure cylinder 3 and left end cap 1 are linked together securely, as long as frictional force is more than the weight of left end cap 1, just
The tight fit between pressure cylinder 3 and left end cap 1 is can guarantee that, does not produce relative motion；Similarly, it is also applied for pressure cylinder 3
With right end cap 5.
In the present invention, pressure cylinder 3 is thin cylinder, inner wall smooth.
In the present invention, left end cap 1 and right end cap 5 are stepped cylinder body, and outer surface is shiny surface.
In the present invention, according to the work requirements of instrument, one in left end cap 1 or right end cap 5 with the company of pressure cylinder 3
The mode of connecing can use welding manner to connect.
In the present invention, when the length of pressure cylinder 3 is longer and is relatively large in diameter, left end cap 1（Or right end cap 5）Heavier-weight
When, two O-ring combinations can be used, i.e. left end cap 1 or right end cap 5 stretches into part（Small cylinder）On offer
Two O-ring grooves, it is respectively intended to place two O-rings, i.e. the first left end cap O-ring 2a, the second left end cap O-ring 2b and first
Right end cap O-ring 4a, the second right end cap O-ring 4b, to increase the frictional force between pressure cylinder 3 and end cap, make pressure cylinder 3
With left end cap 1（Or right end cap 5）More it is firmly fixed together.
The beneficial effects of the present invention are：Using small-sized deep-sea instrument thin-wall barrel and the non-bolted joint device of end cap,
On the premise of the wall thickness, left end cap 1 and the thickness of right end cap 5 of pressure cylinder 3 is not increased, using O-ring be squeezed deformation and
Caused frictional force, pressure cylinder 3 and left end cap 1, pressure cylinder 3 and right end cap 5 are tightly secured together respectively, make both
Between can not have relative motion, realize the compactedness of apparatus structure, saved material, reduce the weight of instrument, realize
The lightweight of instrument.
Brief description of the drawings
Fig. 1 is the assembling structure schematic diagram of the deep-sea instrument non-bolted joint of the present invention.
Fig. 2 is the assembling structure schematic diagram that double O-rings of the present invention are fastenedly connected.
Label in figure：1 is left end cap, and 2a, 2b are respectively first, second left end cap O-ring, and 3 be pressure cylinder, 4a, 4b
Respectively first, second right end cap O-ring, 5 be right end cap.
Embodiment
The present invention is further illustrated below by embodiment combination accompanying drawing.
Embodiment 1：Length is shorter, illustrates exemplified by the less cylinder instrument of diameter.
As shown in figure 1, the non-bolted joint device of small-sized deep-sea instrument thin-wall barrel and end cap, including left end cap 1, first
Left end cap O-ring 2a, pressure cylinder 3, the right end cap O-ring 4a of right end cap 5 and first；Left end cap 1 and right end cap 5 are step type
Cylinder, small cylinder are stretched into pressure cylinder 3, and big cylinder plays lid；The small cylinder of left end cap 1 and right end cap 5
Stretch into pressure cylinder 3, adopted between the outer surface of the small cylinder of left end cap 1 and right end cap 5 and the inner surface of pressure cylinder 3
Coordinated with gap；Gap width is taken as O-ring and reliably sealed within the safety permission design load of seawater；Left end cap 1 and right end cap 5
O-ring groove is offered on small cylinder, is respectively intended to place the first left end cap O-ring 2a and the first right end cap O-ring 4a；O
The width value and depth value of type ring recess are taken as O-ring and reliably sealed within the safety permission design load of seawater, ensure the change of O-ring
Shape value is within zone of reasonableness；It is left due to being provided with first between pressure cylinder 3 and left end cap 1 when instrument works at deep-sea
End cap O-ring 2a, the first right end cap O-ring 4a is installed between pressure cylinder 3 and right end cap 5, forms a watertight cavity volume, can
Entered with the seawater of prevention, protect the equipment inside Instrument shell；Again due to installed between pressure cylinder 3 and left end cap 1 the
One left end cap O-ring 2a is squeezed deformation, the first right end cap O-ring 4a installed between pressure cylinder 3 and right end cap 5 also by
To crimp, O-ring is a kind of extrusion pressing type seal, and the basic functional principle of extrusion pressing type sealing is that bullet occurs by O-ring
Property deformation, cause contact on sealing contact surface, formed expanding force so as between pressure cylinder 3 and left end cap 1 and
Stiction is produced between pressure cylinder 3 and right end cap 5 so that between pressure cylinder 3 and left end cap 1 and the He of pressure cylinder 3
Relative motion can not be produced between right end cap 5, so as to which pressure cylinder 3, left end cap 1 and right end cap 5 to be firmly attached and be fixed on
Together.
Embodiment 2：Length is longer, is relatively large in diameter, illustrates exemplified by the cylinder instrument that end cap is heavier.
As shown in Fig. 2 the non-bolted joint device of small-sized deep-sea instrument thin-wall barrel and end cap includes left end cap 1, first
Left end cap O-ring 2a and the second left end cap O-ring 2b, pressure cylinder 3, right end cap 5, the first right end cap O-ring 4a and second are right
End cap O-ring 4b；Left end cap 1 or right end cap 5 stretch into part（Small cylinder）On offer two O-ring grooves, use respectively
To place two O-rings, i.e. the first left end cap O-ring 2a, the second left end cap O-ring 2b and the first right end cap O-ring 4a, second
Right end cap O-ring 4b, to increase the frictional force between pressure cylinder 3 and end cap, make pressure cylinder 3 and left end cap 1, pressure cylinder
3 and right end cap 5 be more rigidly secured together.
Claims (5)
1. the non-bolted joint device of a kind of small-sized deep-sea instrument thin-wall barrel and end cap, including left end cap（1）, the first left end cap
O-ring（2a）, pressure cylinder（3）, right end cap（5）With the first right end cap O-ring（4a）, it is characterised in that：Left end cap（1）And the right side
End cap（5）It is stepped cylinder body, its small cylinder is respectively protruding into pressure cylinder（3）Both ends, left end cap（1）And right end cap
（5）On offer O-ring groove；Left end cap（1）O-ring groove in set the first left end cap O-ring（2a）, right end cap（1 is changed to
“5”）O-ring groove in set the first right end cap O-ring（4a）, left end cap（1）And right end cap（5）Small cylinder outer surface
With pressure cylinder（3）Inner surface between using gap coordinate, gap width and O-ring groove size are taken as O-ring and reliably seal sea
The safety of water allows within design load；Pressure cylinder（3）With left end cap（1）Between play the first left end cap O of seawater sealing function
Type circle（2a）It is squeezed and deforms and caused expanding force and frictional force, securely by pressure cylinder（3）And left end cap（1）Connection
Together, as long as frictional force is more than left end cap（1）Weight, it is ensured that pressure cylinder（3）And left end cap（1）Between it is close
Coordinate, do not produce relative motion；Similarly, it is also applied for pressure cylinder（3）And right end cap（5）.
2. the non-bolted joint device of small-sized deep-sea instrument thin-wall barrel according to claim 1 and end cap, its feature exist
In pressure cylinder（3）For thin cylinder, inner wall smooth.
3. the non-bolted joint device of small-sized deep-sea instrument thin-wall barrel according to claim 1 and end cap, its feature exist
In left end cap（1）And right end cap（5）It is stepped cylinder body, outer surface is shiny surface.
4. the non-bolted joint device of small-sized deep-sea instrument thin-wall barrel according to claim 1 and end cap, its feature exist
In the work requirements according to instrument, left end cap（1）Or right end cap（5）In one and pressure cylinder（3）Connected mode adopt
Connected with welding manner.
5. the non-bolted joint device of small-sized deep-sea instrument thin-wall barrel according to claim 1 and end cap, its feature exist
In pressure cylinder（3）When length is longer and is relatively large in diameter, left end cap（1）Or right end cap（5）During heavier-weight, two can be used
Individual O-ring combination, i.e. left end cap（1）Or right end cap（5）Stretch into part（Small cylinder）On offer two O-rings
Groove, it is respectively intended to place two O-rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710651859.2A CN107401612A (en) | 2017-08-02 | 2017-08-02 | The non-bolted joint device of small-sized deep-sea instrument thin-wall barrel and end cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710651859.2A CN107401612A (en) | 2017-08-02 | 2017-08-02 | The non-bolted joint device of small-sized deep-sea instrument thin-wall barrel and end cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107401612A true CN107401612A (en) | 2017-11-28 |
Family
ID=60402111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710651859.2A Pending CN107401612A (en) | 2017-08-02 | 2017-08-02 | The non-bolted joint device of small-sized deep-sea instrument thin-wall barrel and end cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107401612A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108792436A (en) * | 2018-07-25 | 2018-11-13 | 宁夏国励汽车动力科技有限公司 | Sealed boring cover |
| CN110285215A (en) * | 2019-06-25 | 2019-09-27 | 西北工业大学 | A kind of sealing structure and method of aperture composite end socket |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5652734A (en) * | 1996-01-29 | 1997-07-29 | Fish; Richard I. | Directional sound signaling device |
| CN2647747Y (en) * | 2003-08-14 | 2004-10-13 | 四川海洋特种技术研究所 | Deep water pressure resistant cabin with retainer slot |
| CN203057752U (en) * | 2013-01-15 | 2013-07-10 | 长安大学 | Underwater pressure chamber |
| CN104158530A (en) * | 2014-08-18 | 2014-11-19 | 山东拓普液压气动有限公司 | Deep-water contactless trigger switch |
| CN205872408U (en) * | 2016-07-05 | 2017-01-11 | 沈阳航天新光集团有限公司 | Deep water power pressurized cabin |
| CN106394832A (en) * | 2015-07-30 | 2017-02-15 | 国家电网公司 | Sealing cylinder for underwater controller |
-
2017
- 2017-08-02 CN CN201710651859.2A patent/CN107401612A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5652734A (en) * | 1996-01-29 | 1997-07-29 | Fish; Richard I. | Directional sound signaling device |
| CN2647747Y (en) * | 2003-08-14 | 2004-10-13 | 四川海洋特种技术研究所 | Deep water pressure resistant cabin with retainer slot |
| CN203057752U (en) * | 2013-01-15 | 2013-07-10 | 长安大学 | Underwater pressure chamber |
| CN104158530A (en) * | 2014-08-18 | 2014-11-19 | 山东拓普液压气动有限公司 | Deep-water contactless trigger switch |
| CN106394832A (en) * | 2015-07-30 | 2017-02-15 | 国家电网公司 | Sealing cylinder for underwater controller |
| CN205872408U (en) * | 2016-07-05 | 2017-01-11 | 沈阳航天新光集团有限公司 | Deep water power pressurized cabin |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108792436A (en) * | 2018-07-25 | 2018-11-13 | 宁夏国励汽车动力科技有限公司 | Sealed boring cover |
| CN110285215A (en) * | 2019-06-25 | 2019-09-27 | 西北工业大学 | A kind of sealing structure and method of aperture composite end socket |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171128 |
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| WD01 | Invention patent application deemed withdrawn after publication |