CN107588057B - A kind of deep-sea High-voltage-resistatransformer hydraulic cylinder sealing structure - Google Patents
A kind of deep-sea High-voltage-resistatransformer hydraulic cylinder sealing structure Download PDFInfo
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- CN107588057B CN107588057B CN201711089277.6A CN201711089277A CN107588057B CN 107588057 B CN107588057 B CN 107588057B CN 201711089277 A CN201711089277 A CN 201711089277A CN 107588057 B CN107588057 B CN 107588057B
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- cylinder barrel
- oil liquid
- floating piston
- end cap
- hydraulic cylinder
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Abstract
A kind of deep-sea High-voltage-resistatransformer hydraulic cylinder sealing structure, belong to hydraulic cylinder sealing technical field, including dynamic sealing, oil liquid is isolated, floating piston, end cap, cylinder barrel, piston rod, pouring orifice, it is characterized by: the cylinder inner fluid is deposited in inside cylinder barrel with oil liquid is isolated, isolation oil liquid is high-voltage oil liquid, three dynamic sealings are set inside cylinder barrel, floating piston is mounted on inside cylinder barrel, it is blocked by end cap and is detached from cylinder barrel in outside, end cap is connected and fixed with cylinder barrel, there are the gaps 10mm between end cap and piston rod, with extraneous seawater connection, three seals are arranged in floating piston surface, and floating piston is as second dynamic sealing component, pouring orifice is arranged in floating piston movement section position.The invention usefulness: to 0~2000m of deep-marine-environment, and working long hours in briny environment, meet the sealing performance of hydraulic cylinder well, and structure is simple, and replacement is convenient.
Description
Technical field
The present invention relates to a kind of deep-sea High-voltage-resistatransformer hydraulic cylinder sealing structures, specifically by utilizing dynamic sealing, isolation oil
Liquid, floating piston composition, belongs to hydraulic cylinder sealing technical field.
Background technique
Existing hydraulic cylinder mainly includes cylinder barrel, rear end cap, piston, piston rod and sealing element, and this kind of hydraulic cylinder is generally answered
Used in air pressure environment or short time in the pressure environment of variation, requirement is substantially met.But for deep-marine-environment 0~
2000m, and it is immersed in briny environment for a long time, it is unreasonable due to sealing element, so that the poor sealing performance of oil cylinder.For above-mentioned
Problem devises this deep-sea High-voltage-resistatransformer hydraulic cylinder sealing structure.
Summary of the invention
In view of the above-mentioned deficiencies, the present invention provides a kind of deep-sea High-voltage-resistatransformer hydraulic cylinder sealing structures.
The present invention is achieved by the following technical solutions: a kind of deep-sea High-voltage-resistatransformer hydraulic cylinder sealing structure, including dynamic
Sealing, isolation oil liquid, floating piston, end cap, cylinder barrel, piston rod, pouring orifice, it is characterised in that: the cylinder inner fluid with every
It is deposited in inside cylinder barrel from oil liquid, isolation oil liquid is high-voltage oil liquid, three dynamic sealings is arranged inside cylinder barrel, floating piston is mounted on
External to block its disengaging cylinder barrel by end cap inside cylinder barrel, end cap is connected and fixed with cylinder barrel, and there are 10mm between end cap and piston rod
Gap, with extraneous seawater connection, three seals interface is arranged in floating piston surface, and floating piston sheet is as second dynamic sealing
Component, pouring orifice are arranged in floating piston movement section position.
The invention has the beneficial effect that 0~2000m of deep-marine-environment, and works long hours in briny environment, well completely
The foot sealing performance of hydraulic cylinder.On the outside of floating piston and contact with sea water, inside is filled with pressure oil, and oil pressure is greater than seawater pressure
Power ensure that with extraneous sea water pressure balance, prevent seawater from penetrating into, and separates oil with high-voltage oil liquid (pressure is higher than cylinder inner fluid)
Cylinder interior and seawater, and structure is simple, replacement is convenient.
Detailed description of the invention
Fig. 1 is overall structure of the present invention；
Fig. 2 is cylinder barrel schematic diagram of internal structure of the present invention；
Fig. 3 is end cover structure schematic diagram of the present invention；
Fig. 4 is floating piston arrangement schematic diagram of the present invention.
In figure, 1, cylinder inner fluid, 2, dynamic sealing, 3, isolation oil liquid, 4, floating piston, 5, extraneous seawater, 6, end cap, 7, cylinder
Cylinder, 8, piston rod, 9, pouring orifice.
Specific embodiment
The present invention is achieved by the following technical solutions: a kind of deep-sea High-voltage-resistatransformer hydraulic cylinder sealing structure, including dynamic
Sealing 2, isolation oil liquid 3, floating piston 4, end cap 6, cylinder barrel 7, piston rod 8, pouring orifice 9, it is characterised in that: oily in the cylinder
Liquid 1 is deposited in inside cylinder barrel 7 with oil liquid 3 is isolated, and isolation oil liquid 3 is high-voltage oil liquid, and three dynamic sealings 2 are arranged inside cylinder barrel 7, is floated
Piston 4 is mounted on inside cylinder barrel 7, external to block its disengaging cylinder barrel 7 by end cap 6, and end cap 6 is connected and fixed with cylinder barrel 7, end cap 6
There are the gaps 10mm between piston rod 8, and with extraneous 5 connection of seawater, three seals are arranged in 4 surface of floating piston, and float and live
Plug 4 is used as second dynamic sealing device, and pouring orifice 9 is arranged in floating piston 4 and moves section position.
Working principle: when hydraulic cylinder works are in the high pressure sea water environment of variation, the pressure of extraneous seawater 5 is directly acted on
In on 4 one faces of floating piston, at the same time, already by pouring orifice 9 will be isolated oil liquid 3 (high-voltage oil liquid) inject hydraulic cylinder with
It between piston, is acted on another face of floating piston 4 by isolation oil liquid 3 (high-voltage oil liquid), and then pushes floating piston 4 in work
It is moved left and right on stopper rod 8, realizes that oil liquid is isolated with seawater, and pressure balance.Assuming that extraneous seawater 5 enters isolation 3 (high pressure of oil liquid
Oil liquid), then being additionally provided with three dynamic sealings 2 inside cylinder barrel 7, it is isolated with the cylinder inner fluid 1 of hydraulic cylinder.
For the ordinary skill in the art, introduction according to the present invention, do not depart from the principle of the present invention with
In the case where spirit, changes, modifications that embodiment is carried out, replacement and variant still fall within protection scope of the present invention it
It is interior.
Claims (1)
1. a kind of deep-sea High-voltage-resistatransformer hydraulic cylinder sealing structure, including dynamic sealing, isolation oil liquid, floating piston, end cap, cylinder barrel,
Piston rod, pouring orifice, it is characterised in that: cylinder inner fluid is deposited in inside cylinder barrel with the oil liquid of being isolated, and isolation oil liquid is high pressure
Three dynamic sealings are arranged in oil liquid, cylinder barrel inside, and dynamic sealing is mounted in cylinder barrel as first of dynamic sealing component, floating piston
Portion, external to block its by end cap and be detached from cylinder barrel, end cap is connected and fixed with cylinder barrel, there are the gap 10mm between end cap and piston rod,
With extraneous seawater connection, three seals interface is arranged in floating piston surface, and floating piston itself is used as second dynamic sealing portion
Part, pouring orifice are arranged in floating piston movement section position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711089277.6A CN107588057B (en) | 2017-11-08 | 2017-11-08 | A kind of deep-sea High-voltage-resistatransformer hydraulic cylinder sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711089277.6A CN107588057B (en) | 2017-11-08 | 2017-11-08 | A kind of deep-sea High-voltage-resistatransformer hydraulic cylinder sealing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107588057A CN107588057A (en) | 2018-01-16 |
| CN107588057B true CN107588057B (en) | 2019-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711089277.6A Active CN107588057B (en) | 2017-11-08 | 2017-11-08 | A kind of deep-sea High-voltage-resistatransformer hydraulic cylinder sealing structure |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5884207A (en) * | 1981-11-16 | 1983-05-20 | Mitsubishi Electric Corp | Oil pressure operating device |
| CN101285492A (en) * | 2008-05-28 | 2008-10-15 | 中冶连铸技术工程股份有限公司 | Floating guiding hydraulic cylinder |
| DE202012012213U1 (en) * | 2012-12-20 | 2013-02-27 | Stasskol Gmbh | piston engine |
| CN203374819U (en) * | 2013-07-09 | 2014-01-01 | 常州市武进天宇液压件有限公司 | Seawater-proof structure of barge oil cylinder guiding sleeve |
| CN103486096A (en) * | 2013-09-27 | 2014-01-01 | 浙江大学舟山海洋研究中心 | Piston-type deep sea pressure compensator capable of avoiding sea water pollution |
| CN204628544U (en) * | 2015-03-24 | 2015-09-09 | 上海上探工程机械有限公司 | With the device of pulsing packing sealing |
| GB2537062A (en) * | 2015-06-30 | 2016-10-05 | Anglia Hydraulics Holdings Ltd | Hydraulic device |
-
2017
- 2017-11-08 CN CN201711089277.6A patent/CN107588057B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5884207A (en) * | 1981-11-16 | 1983-05-20 | Mitsubishi Electric Corp | Oil pressure operating device |
| CN101285492A (en) * | 2008-05-28 | 2008-10-15 | 中冶连铸技术工程股份有限公司 | Floating guiding hydraulic cylinder |
| DE202012012213U1 (en) * | 2012-12-20 | 2013-02-27 | Stasskol Gmbh | piston engine |
| CN203374819U (en) * | 2013-07-09 | 2014-01-01 | 常州市武进天宇液压件有限公司 | Seawater-proof structure of barge oil cylinder guiding sleeve |
| CN103486096A (en) * | 2013-09-27 | 2014-01-01 | 浙江大学舟山海洋研究中心 | Piston-type deep sea pressure compensator capable of avoiding sea water pollution |
| CN204628544U (en) * | 2015-03-24 | 2015-09-09 | 上海上探工程机械有限公司 | With the device of pulsing packing sealing |
| GB2537062A (en) * | 2015-06-30 | 2016-10-05 | Anglia Hydraulics Holdings Ltd | Hydraulic device |
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| Publication number | Publication date |
|---|---|
| CN107588057A (en) | 2018-01-16 |
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