CN102681305B - Electric tripod head used in deep water - Google Patents
Electric tripod head used in deep water Download PDFInfo
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- CN102681305B CN102681305B CN201210190961.4A CN201210190961A CN102681305B CN 102681305 B CN102681305 B CN 102681305B CN 201210190961 A CN201210190961 A CN 201210190961A CN 102681305 B CN102681305 B CN 102681305B
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- deep water
- piston body
- piston
- tripod head
- upper shell
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Abstract
The invention relates to an electric tripod head used in deep water. An equal pressure gauge is arranged on an upper barrel; an upper sealed chamber is formed in an inner space of the upper barrel; a lower barrel is welded with a fixed flange to form a lower sealed chamber; the equal pressure gauge comprises a piston body, an end cover and a piston which does reciprocating motion; an end opening A is formed on the piston body; an end opening B is formed on the end cover; the piston body is in threaded connection with the upper barrel; an adjusting space is formed by the piston body and the piston; and non-conducting liquid is filled in the upper sealed chamber and the lower sealed chamber. The non-conducting liquid is filled in the tripod head, the equal pressure gauge ensures that pressure inside and outside the electric tripod head is consistent or the pressure difference is small, and the tripod head is isolated from the outside, so that the aims of pressure balance and isolation are fulfilled. The electric tripod head is light in design, is flexibly operated, is a pressure-resistant electric tripod head device which can work in the deep water, and is particularly suitable for changing the horizontal and pitching angles of a camera or other articles under the deep water condition.
Description
Technical field
The invention belongs to video monitor field, relate to a kind of deep water electric platform, is a kind of withstand voltage electric platform device that can work in deep water, under especially applicable deep water conditions, changes level and the luffing angle of camera or other article.
Background technology
The electric platform using under water needs good protection, and to prevent that water from entering into the inside of The Cloud Terrace, existing The Cloud Terrace is that the inner sealing at electric platform goes out a space.When electric platform is applied in deepwater environment, existing electric platform will bear great pressure.In general the every increase of the depth of water is 10 meters, pressure increases 1kg/cm2, deep water The Cloud Terrace can be operated in the hydraulic pressure that is greater than 2000 meters of depth of waters as needs, at this moment pressure is greater than 200kg/cm2, existing The Cloud Terrace will guarantee to work in such deepwater environment, just must adopt compared with steel plate (or other sturdy material).Because electric platform has movable part, the seal element that existing electric platform is laid in moving part, also will bear larger pressure.When pressure is larger, its frictional resistance is also larger, so the existing electric platform that can work in deep water is heavier, rotates and operates all dumb.Existing electric platform, during reality is used under water, often bad because sealing, leak, and break down.
Summary of the invention
Problem to be solved by this invention is, overcome the deficiencies in the prior art, a kind of deep water electric platform is provided, it is a kind of withstand voltage electric platform device that can work in deep water, at the inner non-electrically conductive liquid that fills of The Cloud Terrace, and guarantee that by an equal pressure device the consistent differential pressure of pressure inside and outside electric platform is smaller, and guarantee that The Cloud Terrace completely cuts off again with outside, reaches the object of equalized pressure and isolation.
The present invention solves its technical matters and takes following technical scheme to realize:
According to a kind of deep water electric platform provided by the invention, comprise upper shell, lower shell, upper motor and lower motor, equal pressure device is housed on described upper shell, the inner space of upper shell forms closed chamber, and lower shell is welded and fixed flange and forms lower seal chamber; Feathering axis, bearing and locknut are combined into bearing movable pair between upper closed chamber, lower seal chamber, upper shell comes the secondary executive level of bearing movable described in transmission to rotate by being fixed on the indoor lower motor of lower seal, primary seal circle is housed between the end face between upper shell, lower shell, be fixed on upper motor in closed chamber and carry out pitching turning axle described in transmission, pitching turning axle comes loading ability of bearing load described in transmission to carry out pitching rotation again, and it is indoor that inlet wire cable is linked into lower seal by incoming seal circle and inlet wire packing box seal.
It is to take following technical scheme further to realize that the present invention solves its technical matters:
Aforesaid equal pressure device comprises piston body, end cap and reciprocating piston, and piston body is provided with A end opening, and end cap is provided with B end opening, the piston body upper shell that is threaded, and piston body and piston form adjusts space;
Aforesaid upper closed chamber and lower seal chamber interior fill non-electrically conductive liquid.
The present invention compared with prior art has significant advantage and beneficial effect:
Because the present invention adopts at the inner filled non-electrically conductive liquid of The Cloud Terrace, and guarantee that by an equal pressure device the consistent differential pressure of pressure inside and outside electric platform is smaller, and guarantee that The Cloud Terrace completely cuts off again with outside, reaches the object of equalized pressure and isolation.The present invention is a kind of deep water electric platform that designs light and handy, flexible operation and can adapt to high-pressure environment work.
The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is equal pressure device structural representation of the present invention;
Fig. 3 is the present invention's schematic diagram of working under water.
Wherein: 1. adjust space, 2. go up closed chamber, 3. load, 4. upper shell, 5. lower shell, 6. lower seal chamber, 7. descend motor, 8. mounting flange, 9. equal pressure device, 10. go up motor, 11. pitching turning axles, 12. feathering axis, 13. primary seal circles, 14. incoming seal circles, 15. inlet wire stuffing-boxes, 16. inlet wire cables, 17. A end openings, 18. piston bodies, 19. pistons, 20. end caps, 21. B end openings, 22. drilling platform, 23. seawater, 24. deep water electric platforms.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to according to embodiment provided by the invention, structure, feature and effect thereof, be described in detail as follows.
A kind of deep water electric platform as shown in Figure 1, comprise upper shell, lower shell, upper motor and lower motor, on described upper shell 4, equal pressure device 9 is housed, the inner space of upper shell forms closed chamber 2, lower shell 5 is welded and fixed flange 8 and forms lower seal chamber 6, feathering axis 12, bearing and locknut are combined into bearing movable pair and are positioned at closed chamber, between lower seal chamber, upper shell comes the secondary executive level of bearing movable described in transmission to rotate by being fixed on the indoor lower motor 7 of lower seal, upper shell, primary seal circle 13 is housed between the end face between lower shell, be fixed on upper motor 10 in closed chamber and carry out pitching turning axle 11 described in transmission, pitching turning axle comes loading ability of bearing load 3 described in transmission to carry out pitching rotation again, inlet wire cable 16 is linked in lower seal chamber 6 by incoming seal circle 14 and 15 sealings of inlet wire stuffing-box, upper closed chamber and lower seal chamber interior fill non-electrically conductive liquid.
The present invention has two independently closed chambers, and 6, two closed chambers in upper closed chamber 2 and lower seal chamber can relatively rotate.Between upper-lower seal chamber, be communicate and be connected with inlet wire cable 16, the relative rotation between two closed chambers is referred to as to horizontally rotate.Wherein go up in closed chamber and also have a pitching turning axle 11, draw outside deep water electric platform pitching turning axle one end.The center of this pitch axis is equipped with inlet wire cable 16 and is drawn, and pitching turning axle can adjunction load 3, and load is phase machine room, lamp, rain brush etc.Equal pressure device 9 is installed in upper closed chamber, and one end of equal pressure device communicates with upper closed chamber, and the other end communicates with the external world.Upper closed chamber, lower seal be indoor is filled with nonconducting liquid, and upper closed chamber, lower seal chamber do not allow to leave air.
Equal pressure device of the present invention as shown in Figure 2, Shi Yige piston-like mechanism, equal pressure device comprises piston body 18, end cap 20 and reciprocating piston 19, piston body is provided with A end opening 17, end cap is provided with B end opening 21, the piston body upper shell 4 that is threaded, piston body and piston 19 form adjusts spaces 1.When piston body, end cap pressure differential are excessive, piston can move to the little one end of pressure, until be applied between the pressure differential at piston two ends and piston and piston body when friction force equates, piston just can stop mobile.
Because the compressibility of liquid is very little, along with the variation of pressure and temperature, the density of liquid only has small variation, in most of the cases, can ignore constrictive impact, thinks that the density of liquid is a constant.
Under temperature-resistant condition, the volume of liquid can be calculated by following formula with the variable quantity of pressure.
In formula: k---volume compression property coefficient (Pa
-1)
Volume (the m of V---liquid
3)
Variable quantity (the m of Δ Vp---liquid volume
3)
The variable quantity of Δ P---liquid pressure (Pa)
When the pressure that water bears at common temperature is increased to 10MPa by 0.1MPa, its volume only reduces original 0.5%.Because the compressible of liquid is too little, thus in a broad sense or application learn, liquid is (hydraulic pressure is exactly very little this characteristic of compressible of having utilized liquid) with incompressibility.
Under certain pressure intensity, the character that fluid volume increases with temperature rising is called the thermal expansivity of fluid.The size of thermal expansivity represents with volume expansivity α, and its physical significance is the relative change rate that unit temperature changes caused volume,
In formula: α---volume expansivity (1/K)
Volume (the m of V---liquid
3)
Recruitment (the m of Δ Vt---liquid volume
3)
The recruitment of Δ T---temperature (K)
The thermal expansivity of liquid is smaller, generally can not cause that volume produces too large variation.
So need only the volume adjustment amount Δ V of " equal pressure device ", be greater than the volume change of the electric platform internal liquid causing because of pressure, temperature, just can guarantee to regulate.
That is: Δ V > Δ Vp+Δ Vt
When electric platform of the present invention inside fills liquid and equal pressure device is installed, no matter extraneous pressure change is how many, inner and the outside pressure reduction of The Cloud Terrace can maintain in very little scope, so deep water electric platform of the present invention, as long as carry out isolating seal, and without bearing very large pressure, so just can design lightly and can adapt to the electric platform of high-pressure environment (deep water).
The selected mechanical component of deep water electric platform of the present invention can be operated under high pressure condition, and as motor, bearing, wire, securing member, control module etc., these parts and unit are easy to choose, and can in high-pressure environment, work.
As shown in Figure 3, deep water electric platform 24 of the present invention can be applicable to the work monitoring under the seawater 23 of drilling platform 22.
Deep water electric platform debug process of the present invention is as follows, having assembled can be after the normal work under water of normal temperature, non-electrically conductive liquid is injected into the inside of deep water electric platform, attention will all be discharged the air of deep water electric platform inside, can accelerate by adjunction negative pressure the discharge of inner air if desired.
Whether the test of can switching on after the air of electric platform inside is all discharged, detect it and can normally work, if can normally work, just can carry out high low-temperature test.
To fill non-electrically conductive liquid deep water electric platform of the present invention, whether being placed on temperature is to be incubated 4 hours in 50 ℃ of environment, detect it and can normally work; Place it in again temperature and be incubated 4 hours in-20 ℃ of environment, detect it and whether can normally work.If working properly and no liquid is oozed out, represent that it can normally work in high and low temperature environment, just can carry out high pressure resistant test.
To fill non-electrically conductive liquid deep water electric platform of the present invention, be placed in airtight container, and progressively increase pressure to setting value and test it and whether can normally work.
Attention: in test with while using, keep equal pressure device opening part unobstructed, not by foreign matters from being blocked.
Claims (3)
1. a deep water electric platform, comprise upper shell, lower shell, upper motor and lower motor, it is characterized in that: equal pressure device (9) is housed on described upper shell (4), the inner space of upper shell forms closed chamber (2), and lower shell (5) is welded and fixed flange (8) and forms lower seal chamber (6), feathering axis (12), bearing and locknut are combined into bearing movable pair and are positioned at closed chamber, between lower seal chamber, upper shell carrys out the secondary executive level rotation of bearing movable described in transmission by being fixed on the indoor lower motor (7) of lower seal, upper shell, primary seal circle (13) is housed between the end face between lower shell, the upper motor (10) being fixed in closed chamber carrys out transmission pitching turning axle (11), pitching turning axle comes drive bearing carry load (3) to carry out pitching rotation again, it is indoor that inlet wire cable (16) is linked into lower seal by incoming seal circle (14) and inlet wire stuffing-box (15) sealing.
2. deep water electric platform according to claim 1, it is characterized in that: described equal pressure device comprises piston body, end cap and reciprocating piston, piston body (18) is provided with A end opening (17), end cap (20) is provided with B end opening (21), the piston body upper shell that is threaded, piston body and piston (19) form adjusts space (1).
3. deep water electric platform according to claim 1, is characterized in that: described upper closed chamber and lower seal chamber interior fill non-electrically conductive liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210190961.4A CN102681305B (en) | 2012-06-12 | 2012-06-12 | Electric tripod head used in deep water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210190961.4A CN102681305B (en) | 2012-06-12 | 2012-06-12 | Electric tripod head used in deep water |
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| Publication Number | Publication Date |
|---|---|
| CN102681305A CN102681305A (en) | 2012-09-19 |
| CN102681305B true CN102681305B (en) | 2014-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210190961.4A Active CN102681305B (en) | 2012-06-12 | 2012-06-12 | Electric tripod head used in deep water |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202232A (en) * | 2017-07-07 | 2017-09-26 | 上海海洋大学 | The complete deep digitlization electric platform in sea |
| CN108736626A (en) * | 2018-07-05 | 2018-11-02 | 上海查湃智能科技有限公司 | Underwater linear motor and underwater switching action tool |
| CN115857259A (en) * | 2023-02-22 | 2023-03-28 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Integrated camera lighting device for cryogenic environment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201107531Y (en) * | 2007-08-03 | 2008-08-27 | 中国石化集团石油工程西南有限公司工程作业分公司 | Underwater camera shooting control cradle head |
| CN101982695A (en) * | 2010-11-12 | 2011-03-02 | 上海大学 | Underwater two-dimensional measuring and scanning tripod head |
| CN102486251A (en) * | 2010-12-02 | 2012-06-06 | 中国科学院沈阳自动化研究所 | Underwater electric feedback cradle head without transport motion |
| CN202615104U (en) * | 2012-06-12 | 2012-12-19 | 天津市联大通讯发展有限公司 | Novel deep water electric cloud deck |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004125849A (en) * | 2002-09-30 | 2004-04-22 | Fuji Photo Film Co Ltd | Underwater camera fixture |
| JP3829194B2 (en) * | 2002-10-17 | 2006-10-04 | 独立行政法人産業技術総合研究所 | Imaging equipment for surveying underwater ecosystem |
-
2012
- 2012-06-12 CN CN201210190961.4A patent/CN102681305B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201107531Y (en) * | 2007-08-03 | 2008-08-27 | 中国石化集团石油工程西南有限公司工程作业分公司 | Underwater camera shooting control cradle head |
| CN101982695A (en) * | 2010-11-12 | 2011-03-02 | 上海大学 | Underwater two-dimensional measuring and scanning tripod head |
| CN102486251A (en) * | 2010-12-02 | 2012-06-06 | 中国科学院沈阳自动化研究所 | Underwater electric feedback cradle head without transport motion |
| CN202615104U (en) * | 2012-06-12 | 2012-12-19 | 天津市联大通讯发展有限公司 | Novel deep water electric cloud deck |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2004-125849A 2004.04.22 |
| JP特开2004-138824A 2004.05.13 |
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| CN102681305A (en) | 2012-09-19 |
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