CN106704563A - Internal and external pressure balance type rotation movable sealing device - Google Patents
Internal and external pressure balance type rotation movable sealing device Download PDFInfo
- Publication number
- CN106704563A CN106704563A CN201611024768.8A CN201611024768A CN106704563A CN 106704563 A CN106704563 A CN 106704563A CN 201611024768 A CN201611024768 A CN 201611024768A CN 106704563 A CN106704563 A CN 106704563A
- Authority
- CN
- China
- Prior art keywords
- output shaft
- hole
- ring
- sealing
- glass
- 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
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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/031—Gearboxes; Mounting gearing therein characterised by covers or lids for gearboxes
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02034—Gearboxes combined or connected with electric machines
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02069—Gearboxes for particular applications for industrial applications
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses an internal and external pressure balance type rotation movable sealing device used for performing movable sealing on a main connecting flange installed on a pressure resistant sealing barrel. The movable sealing device comprises an output shaft movable sealing barrel, a rubber oil bag, a glass observation plate and oil liquid; a ring-shaped oil tank is formed in the upper middle of the inner wall of the output shaft sealing barrel, and the two sides of the ring-shaped oil tank are sealed; a threaded through hole is formed in the bottom of the ring-shaped oil tank, and a round through hole A is formed in the side opposite to the threaded through hole; ring-shaped protrusions are arranged around the round through hole A; a plurality of symmetrical threaded holes are formed in the end faces of the upper ends of the ring-shaped protrusions and used for fixing the glass observation plate; an output shaft of a speed reducer is inserted into the output shaft sealing barrel of the main connecting flange, and after the interior of the rubber oil bag is filled with the oil liquid in a sucking manner, the oil liquid is received into the output shaft sealing barrel through the threaded through hole; the observation plate is opened, the oil liquid is poured in through the round through hole A till filling is achieved and the liquid level expands, and the glass observation plate is arranged in a covering manner and is fixed; and the position, corresponding to the glass cover plate, on the main connecting flange is provided with an oil liquid quality observation hole.
Description
Technical field
The invention belongs to ocean engineering underwater units applied technical field, and in particular to a kind of inside and outside pressure balance type rotating is moved
Sealing device.
Background technology
In the equipment such as underwater platform, towing system in ocean engineering, it is often necessary to carry out the folding and unfolding of tow, this
The cable draw off gear wherein having is located on work boat deck, and under certain situation draw off gear need to be arranged on underwater platform or
On ROV, now in addition to meeting the function of conventional draw off gear, it is necessary to ensure that power part under water can normal work.
Problem is that first in phytal zone underwater operation, motor and decelerator can not intake in itself, it is impossible in humidity mistake
Run in environment high；Secondly, the situation of outer pressure work is not considered when motor and Design of Speed Reducer, therefore profundal zone works
When in addition to accomplishing power section waterproof, in addition it is also necessary to overcome huge hydraulic pressure, prevent power section fail in compression, it is impossible to normal work
Make.
Therefore, it is necessary to pressure-resistant seal design is carried out to the power part of cable draw off gear, i.e., with pressure-resistant seal cabin to this
Part is closed, and externally connecing socket connection using watertight is powered, and reducer output shaft only is stretched out into sealing out of my cabin, and connection is driven
Dynamic component.Now due to having relative rotation between output shaft and sealed compartment, it is therefore necessary to design dynamic sealing connection, it is known that be used for
The mode of the dynamic sealing connection of rotary shaft is more, as directly used the sealings such as o shapes circle, oil sealing, filler, but in some factors
Under the influence of reliability can substantially reduce.
The content of the invention
In view of this, the invention provides balanced type rotary dynamic sealing device is pressed inside and outside one kind, even if after seal failure
Will not also be produced in the short time and sealing means are pressed inside and outside the balance of failure.
In order to achieve the above object, the technical scheme is that：A kind of inside and outside pressure balanced type rotary dynamic sealing device, uses
The main adpting flange installed on to pressure-resistant seal cylinder carries out dynamic sealing, and pressure-resistant seal cylinder is internally provided with variable-frequency motor and deceleration
Device, and decelerator is fixed on main adpting flange；Variable-frequency motor is fixedly attached to reducer input shaft end.
Dynamic sealing device includes output shaft dynamic sealing cylinder, rubber oil sac, glass observation version and fluid.
Center opens up endless oil groove, endless oil groove both sides sealing on output shaft sealing drum inwall；Endless oil groove bottom opens up
Tapped through hole, the side relative with tapped through hole opens up a manhole A；The surrounding of manhole A is with annular projection, ring
Several symmetrical screwed holes are opened up on the end face of shape projection upper end, for fixing glass access panel, glass observation version and annular projection
Sealed between the end face of upper end.
The output shaft of decelerator is inserted in main adpting flange output shaft sealing drum, and rubber oil is intracapsular to be filled fluid, rubber oil
Capsule is linked into output shaft sealing drum by the tapped through hole of endless oil groove bottom；Glass access panel is opened, by fluid from circle
Shape through hole A is poured into, until filling and liquid level is heaved, glass access panel is covered, and be screwed；With glass on main adpting flange
The corresponding position of glass cover plate opens up oil quality peep hole.
Further, fluid is the big fluid of density ratio water.
Further, also including output Simmer ring, the left and right two ends of output shaft sealing drum inwall upper annular oil groove open up
Output Simmer ring (14) is set in annular seal pocket, wherein annular seal pocket to be sealed.
Further, also set between glass observation version and the end face of annular projection upper end and seen including access panel sealing ring
Plate sealing ring is examined to be sealed.
Beneficial effect：
1st, this structure is in water, the pressure of rubber oil sac and right side sealing ring contact seawater side liquid body simultaneously, now
Pressure at both sides is equal, and the possibility revealed at the sealing ring is substantially reduced, therefore water can not enter in pressure-resistant seal cabin easily.
2nd, the pressure of seawater is subject to due to rubber oil sac, the o shape circle both sides side near pressure hull side is present and seawater
Isobaric pressure differential, but it can be seen from the viscosity of fluid is more than the viscosity several times of water, the correlation according to slip and viscosity, this
The possibility of the sealing leak failure at place acts directly on the possibility for failing herein relative to aqueous medium and substantially reduces.
3rd, convenient observation maintenance, this fluid is triacetyl glycerine, and its physics is big intrinsic viscosity, is slightly soluble in water, density
It is 1.15g/cm3, than water weight.The equipment operation a period of time reach turn(a)round after, in Observable organic glass observation window whether
There is the globule to occur should be density more than water, so water can be floated at the transparent cover plate at the top of oil-filled chamber, determine whether seawater
In intrusion rubber oil sac.The contraction situation of rubber pocket is observed simultaneously, to determine the need for filling oil again.
Brief description of the drawings
Fig. 1 is the sealed compartment general structure where the inventive structure；
Fig. 2 is the movable sealing structure figure of the invention.
Specific embodiment
Develop simultaneously embodiment below in conjunction with the accompanying drawings, and the present invention will be described in detail.
The invention provides a kind of Novel rotary sealing structure, 1- variable-frequency motors, 2- power supplys watertight interface, 3- pressure-resistant seals
Cylinder, 4- decelerators connect variable-frequency motor, 5- process hole fixing bolt, the main adpting flanges of 6-, the observation of 7- oil states by flange
Window, 8- output shafts dynamic sealing cylinder, 9- reducer output shafts, 10- rubber oil sac, 11- pressure-bearing shells sealing ring, the circulation of 12- fluid
Hole, 13- transparency window sealing rings, 14-1- output shaft outer side seals circle, 14-2- output shaft inner seal circles, the triacetins of 15- tri-
Ester abbreviation 11- fluid.
Its annexation is,
Reducer output shaft o shape circles 14-1 and 14-2 are fitted into output shaft sealing shroud seal groove, and reducer output shaft is inserted
Become owner of in adpting flange output shaft sealing drum 8, then decelerator process hole bolt is fixed on main adpting flange；By frequency conversion
Motor 1 is bolted to reducer input shaft end flanges, then installs on main adpting flange pressure hull 3, then by watertight
Connector 2 is screwed on pressure hull；
Left and right two ends open up traditional only one sealing ring of annular seal pocket on the inwall of output shaft sealing drum 8, after failure
Water is directly entered sealed compartment, and center opens up endless oil groove；Wherein endless oil groove bottom opens up tapped through hole, relative with tapped through hole
Side open up a manhole A；The surrounding of manhole A is with annular projection, and number is opened up on the end face of annular projection upper end
Individual symmetrical screwed hole, for fixing glass cover-plate, sets access panel sealing ring between glass cover-plate and annular projection upper end end face
13；Position corresponding with glass cover-plate opens up oil quality peep hole 12 on main adpting flange 6
Rubber oil sac is filled after fluid be screwed into output shaft dynamic sealing cylinder tapped through hole in, by another part fluid from
The manhole A of output shaft sealing drum 8 is poured into, until fill and liquid level is heaved, by oil state observation window lucite cover plate
Gently cover, and be screwed, then by the frame of overall installation to draw off gear, that is, complete the installation in dynamic seal cabin.
The course of work：
When cable draw off gear submerged works, first, the seawater in outside is produced to output shaft outer side seal circle 14-1
Life is to the left according to Fig. 2 situation hydrostatic pressures, and the pressure is relevant with the depth of water；At the same time rubber oil sac is subject to seawater pressure, then fluid
Pressure is also equal to extraneous seawater pressure, then now the outside o shape circle 41-1 left and right sides is pressurized, and pressure is equal, it is relative with adopt
The sealing situation of hydraulic pressure is received with the one side of o shape circles, the possibility leaked under the state is substantially reduced.
At the same time, because fluid is subject to seawater pressure, output shaft inner seal circle 14-2 can now be produced to the left
Lateral pressure, but because the viscosity of fluid is more than water viscosity several times, known according to the hydraulic pressure general knowledge between viscosity and leakage rate, relatively
In the dynamic sealing mode that seawater is directly sealed using o shapes circle, the seal failure possibility of this kind of sealing means is substantially reduced.
To sum up, presently preferred embodiments of the present invention is these are only, is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements made etc. should be included in protection of the invention
Within the scope of.
Claims (4)
1. one kind is inside and outside presses balanced type rotary dynamic sealing device, for the main adpting flange (6) to being installed on pressure-resistant seal cylinder (3)
Carry out dynamic sealing, it is characterised in that pressure-resistant seal cylinder (3) is internally provided with variable-frequency motor (1) and decelerator (4), and subtracts
Fast device is fixed on the main adpting flange (6)；Variable-frequency motor (1) is fixedly attached to reducer input shaft end；
The dynamic sealing device includes output shaft dynamic sealing cylinder (8), rubber oil sac (10), glass observation version and fluid (15)；
Center opens up endless oil groove, endless oil groove both sides sealing on output shaft sealing drum (8) inwall；Open endless oil groove bottom
If tapped through hole, the side relative with tapped through hole opens up a manhole A；The surrounding of manhole A is with annular projection,
Several symmetrical screwed holes are opened up on the end face of annular projection upper end, for fixing glass access panel, glass observation version is convex with ring-type
Play sealing between the end face of upper end；
The output shaft of the decelerator (4) is inserted in main adpting flange output shaft sealing drum (8), is inhaled in the rubber oil sac (10)
Full fluid (15), rubber oil sac (10) is linked into the output shaft sealing drum by the tapped through hole of the endless oil groove bottom
(8) in；Glass access panel is opened, fluid (15) is poured into from manhole A, until filling and liquid level is heaved, glass seen
Examine plate to cover, and be screwed；Position corresponding with glass cover-plate opens up oil quality peep hole on main adpting flange (6)
(12)。
2. one kind as claimed in claim 1 is inside and outside presses balanced type rotary dynamic sealing device, it is characterised in that the fluid (11)
It is the big fluid of density ratio water.
3. one kind as claimed in claim 1 is inside and outside presses balanced type rotary dynamic sealing device, it is characterised in that also including output shaft
Sealing ring (14), the left and right two ends of output shaft sealing drum (8) the inwall upper annular oil groove open up annular seal pocket, wherein ring-type
Output Simmer ring (14) is set in seal groove to be sealed.
4. one kind as claimed in claim 1 is inside and outside presses balanced type rotary dynamic sealing device, it is characterised in that also including access panel
Sealing ring (13), setting the access panel sealing ring (13) between the glass observation version and the end face of annular projection upper end is carried out
Sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611024768.8A CN106704563A (en) | 2016-11-17 | 2016-11-17 | Internal and external pressure balance type rotation movable sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611024768.8A CN106704563A (en) | 2016-11-17 | 2016-11-17 | Internal and external pressure balance type rotation movable sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106704563A true CN106704563A (en) | 2017-05-24 |
Family
ID=58940044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611024768.8A Pending CN106704563A (en) | 2016-11-17 | 2016-11-17 | Internal and external pressure balance type rotation movable sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106704563A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100988A (en) * | 2017-06-06 | 2017-08-29 | 杭州航验环境技术有限公司 | A kind of closed reciprocating rotating engine |
| CN107842587A (en) * | 2017-11-02 | 2018-03-27 | 西安法士特汽车传动有限公司 | A kind of motor side drives pure electric vehicle central reducer unit |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2191319Y (en) * | 1994-01-27 | 1995-03-08 | 贺云山 | Cap pressed type packing unit |
| JPH09105469A (en) * | 1995-10-12 | 1997-04-22 | Idemitsu Eng Co Ltd | Oil baffle for bearing box |
| JPH1182756A (en) * | 1997-09-05 | 1999-03-26 | Nippon Seiko Kk | Bearing device |
| JP2001324027A (en) * | 2000-05-17 | 2001-11-22 | Tsukishima Kikai Co Ltd | Rotating shaft sealing device |
| CN201045410Y (en) * | 2007-06-14 | 2008-04-09 | 湖南崇德工业科技有限公司 | Rotational axis oil seal |
| CN103883734A (en) * | 2014-03-10 | 2014-06-25 | 成都威特电喷有限责任公司 | Cam shaft oil pressure seal end cover |
| CN104141790A (en) * | 2013-05-09 | 2014-11-12 | 南通中国科学院海洋研究所海洋科学与技术研究发展中心 | Sealing device for underwater speed reduction drive mechanism |
| CN105465367A (en) * | 2015-12-21 | 2016-04-06 | 中国船舶重工集团公司第七○二研究所 | Deep-sea oil compensation and double-layer dynamic sealing structure |
| CN205226311U (en) * | 2015-12-14 | 2016-05-11 | 南京安维士传动技术股份有限公司 | A dicyclo labyrinth seal structure for gear box |
-
2016
- 2016-11-17 CN CN201611024768.8A patent/CN106704563A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2191319Y (en) * | 1994-01-27 | 1995-03-08 | 贺云山 | Cap pressed type packing unit |
| JPH09105469A (en) * | 1995-10-12 | 1997-04-22 | Idemitsu Eng Co Ltd | Oil baffle for bearing box |
| JPH1182756A (en) * | 1997-09-05 | 1999-03-26 | Nippon Seiko Kk | Bearing device |
| JP2001324027A (en) * | 2000-05-17 | 2001-11-22 | Tsukishima Kikai Co Ltd | Rotating shaft sealing device |
| CN201045410Y (en) * | 2007-06-14 | 2008-04-09 | 湖南崇德工业科技有限公司 | Rotational axis oil seal |
| CN104141790A (en) * | 2013-05-09 | 2014-11-12 | 南通中国科学院海洋研究所海洋科学与技术研究发展中心 | Sealing device for underwater speed reduction drive mechanism |
| CN103883734A (en) * | 2014-03-10 | 2014-06-25 | 成都威特电喷有限责任公司 | Cam shaft oil pressure seal end cover |
| CN205226311U (en) * | 2015-12-14 | 2016-05-11 | 南京安维士传动技术股份有限公司 | A dicyclo labyrinth seal structure for gear box |
| CN105465367A (en) * | 2015-12-21 | 2016-04-06 | 中国船舶重工集团公司第七○二研究所 | Deep-sea oil compensation and double-layer dynamic sealing structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100988A (en) * | 2017-06-06 | 2017-08-29 | 杭州航验环境技术有限公司 | A kind of closed reciprocating rotating engine |
| CN107100988B (en) * | 2017-06-06 | 2024-01-09 | 杭州航验环境技术有限公司 | Closed reciprocating rotary power machine |
| CN107842587A (en) * | 2017-11-02 | 2018-03-27 | 西安法士特汽车传动有限公司 | A kind of motor side drives pure electric vehicle central reducer unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |
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| RJ01 | Rejection of invention patent application after publication |