CN107401615A - A kind of airtight and watertight padding pressing device of adaptive environment pressure medium - Google Patents
A kind of airtight and watertight padding pressing device of adaptive environment pressure medium Download PDFInfo
- Publication number
- CN107401615A CN107401615A CN201710543896.1A CN201710543896A CN107401615A CN 107401615 A CN107401615 A CN 107401615A CN 201710543896 A CN201710543896 A CN 201710543896A CN 107401615 A CN107401615 A CN 107401615A
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- China
- Prior art keywords
- airtight
- compression plate
- watertight padding
- hole
- booster
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- 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.)
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
- F16J15/184—Tightening mechanisms
- F16J15/185—Tightening mechanisms with continuous adjustment of the compression of the packing
Abstract
A kind of airtight and watertight padding pressing device of adaptive environment pressure medium, including stuffing box, stuffing box offer step through-hole, and rotating shaft forms filling cavity through step through-hole and with step through-hole, and airtight and watertight padding is filled in filling cavity；Compression plate is installed on the inside of stuffing box, the inner side end of compression plate central through hole sets flange and filling cavity phase configuration, location guide is installed in the periphery of step through-hole, location guide is connected with compression plate, axial expansion capsule is installed in the end face outside of compression plate, axial expansion capsule is connected by pipeline through booster with pressure medium out of my cabin.The present invention saves the energy using the pressure of surrounding medium as power source, green, low energy consumption demand when being navigated by water suitable for long-time；Ensure sealing property and the normal work of airtight and watertight padding simultaneously；Thrust follows environmental pressure quickly to change, and fast-response is good；Stop valve is arranged on easily operated position, mitigates personnel's burden, and security is good.
Description
Technical field
The invention belongs to ship Seal Design technical field, more particularly to a kind of sealing of adaptive environment pressure medium is filled out
Expect pressing device.
Background technology
Packing seal is a kind of sealing means commonly used in ship-related products, is usually used in hermetically passing hull pneumatic shell position
Power transmission shaft, such as tailing axle, flap valve drive link, prevent external dynamic sea from entering in cabin.
Packing seal compresses sealing of the filler realization to sealing position by external force, and traditionally this external force is typically led to by people
Cross and tighten the modes such as bolt and realize, have the following disadvantages：1) limited strength of people, it is difficult to produce larger thrust and compress filler
Effectively sealing is formed, particularly when seawater pressure is larger external dynamic sea can not be prevented largely to enter in cabin；2) it is artificial to compress speed
Degree is slower, it is difficult to which fast-holding filler, sealing is not in time；3) once spray leakage occurs for sealing position, water smoke is formed, personnel are difficult to connect
The airtight and watertight padding of nearly sealing position；4) if sealing filler pressing force is excessive, it is difficult to ensures the normal use of power transmission shaft, adds simultaneously
The abrasion of fast airtight and watertight padding, axis is likely to result in when serious or filler friction is produced high temperature and is damaged.
The content of the invention
The technical problem to be solved by the invention is to provide a kind of airtight and watertight padding of adaptive environment pressure medium to compress dress
Put, pressing device dynamic regulation thrust, good airproof performance is safe, easy to use and can save energy.
The technical solution adopted in the present invention is：
A kind of airtight and watertight padding pressing device of adaptive environment pressure medium, including stuffing box, the stuffing box and hull
Bulkhead fix, stuffing box offers step through-hole, and rotating shaft forms filling cavity, sealing through step through-hole and with step through-hole
Filler is filled in filling cavity；Cavity is correspondingly filled in the inner side of stuffing box and is installed on compression plate, compression plate central through hole
Inner side end sets flange and filling cavity phase configuration, and location guide is installed in the periphery of stuffing box inner side step through hole, Gu
Determine guide rod with compression plate to be connected, the end face outside that compression plate is corresponded on location guide is installed on axial expansion capsule, axial expansion
The rear end of capsule is installed on stop part, and front end acts on compression plate end face outside, and described axial expansion capsule is by pipeline through supercharging
Device is connected with pressure medium out of my cabin.
By such scheme, described location guide is installed along the circumferentially-spaced of step through-hole end face, along week on compression plate
Through hole and location guide phase configuration are opened up to interval.
By such scheme, the inner side that compression plate is corresponded on location guide sets finite place piece, and the locating part is with compressing
The axial gap of disk is 2mm to 10mm.
By such scheme, the inlet of the booster is connected by stop valve one with pressure medium out of my cabin, supercharging
The liquid outlet of device is connected with axial expansion capsule, and booster is connected by stop valve two with the flow container that returns in cabin.
By such scheme, described location guide sets 3~12, is evenly distributed, in the inner side of location guide and outside
End is provided with screw thread, installs the female locating part of tool and stop part on screw thread respectively.
By such scheme, the booster is dual-piston structure, including pressure chamber and booster cavity, pressure chamber and booster cavity point
Not with piston one and the phase configuration of piston two, it is connected before and after piston one and piston two and forms dual-piston structure, pressure chamber and inlet
Connection, booster cavity connect with liquid outlet, and pressure chamber and booster cavity are cylinder, and pressure chamber diameter is more than booster cavity diameter.
By such scheme, the pressure chamber diameter is 1.2~2 times of the booster cavity diameter.
By such scheme, the outer peripheral face of the piston one is provided with sealing ring and coordinated in the lump with pressure chamber, outside piston two
Side face is provided with sealing ring two and coordinated with booster cavity；The pressure chamber is provided with air vent close to the side of booster cavity.
Having the beneficial effect that acquired by the present invention：
1. the present invention is directly using the pressure of surrounding medium as power source, by setting axial expansion capsule by the pressure of surrounding medium
Power is converted into the thrust of compression plate, eliminates electric power, the consumption of hydraulic pressure equal energy source, saves the energy, green, is particularly suitable for use in
Low energy consumption demand when ship-related products navigate by water for a long time；
2. the present invention ensures sealing property and the normal work of airtight and watertight padding simultaneously：The thrust of compression plate is situated between with environment
The change of matter pressure and adaptive change, can automatically control compression degree, the thrust also phase when surrounding medium pressure is larger
It should increase, ensure that sealing property；When surrounding medium pressure is relatively low, thrust also accordingly reduces, and avoids damaging airtight and watertight padding by pressure
With axis phenomenon；
3. the thrust of the present invention follows surrounding medium pressure adaptation to change, surrounding medium pressure slightly changes, and compresses
Power follows environmental pressure quickly to change accordingly, when overcoming artificial compression thrust size it is bad control and speed seal more slowly
Not in time the problem of, fast-response are good；
4. the stop valve of the present invention is arranged on easily operated position, personnel during spray leakage occur from spray leakage position farther out
Position operation stop valve, easy to operate, mitigation personnel's burden, security are good.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present invention；
Fig. 2 is supercharger structure schematic diagram；
Fig. 3 is F and P1 variation relation schematic diagram；
In figure：1- stuffing boxes, 2- airtight and watertight paddings, 3- compression plates, 4- locating parts, 5- axial expansion capsules, 6- boosters, 61-
Pressure chamber, 62- booster cavities, 63- pistons one, 64- pistons two, 65- sealing rings one, 66- sealing rings two, 67- air vents, 68- enter
Liquid mouth, 69- liquid outlets, 7- stop valves one, 8- stop valves two, 9- rotating shafts, 10- bulkheads, 11- location guides, 12- stop parts.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of airtight and watertight padding pressing device of adaptive environment pressure medium is present embodiments provided, including
Stuffing box 1, the bulkhead 10 of stuffing box 1 and hull are fixed, and stuffing box 1 offers step through-hole, rotating shaft 9 through step through-hole and with
Step through-hole forms filling cavity, and airtight and watertight padding 2 is filled in filling cavity；Cavity peace is correspondingly filled in the inner side of stuffing box 1
Provided with compression plate 3, the inner side end of the central through hole of compression plate 3 sets flange and filling cavity phase configuration, the side stage in stuffing box 1
The periphery of rank through hole is installed on location guide 11, and location guide 11 is connected with compression plate 3, and compression plate is corresponded on location guide 11
3 end face outside is installed on axial expansion capsule 5, and hydraulically full in axial expansion capsule 5, the rear end of axial expansion capsule 5 is installed on only
Block piece 12, front end act on the end face outside of compression plate 3, and described axial expansion capsule 5 is by pipeline through booster 6 and pressure out of my cabin
Medium is connected.It should be noted that in the present embodiment, using on stuffing box 1 relative to the end face of compression plate 3 as stuffing box 1
Inner side end, using on compression plate 3 relative to stuffing box 1 end face as compression plate 3 inner side end.
Location guide 11 is installed along the circumferentially-spaced of step through-hole end face, circumferentially spaced on compression plate 3 to open up through hole
With the phase configuration of location guide 11.
The inner side that compression plate 3 is corresponded on location guide 11 sets finite place piece 4, between the axial direction of locating part 4 and compression plate 3
Gap is L, and L scope is 2mm to 10mm, and L is 5mm in the present embodiment.L limits the maximum displacement of axial expansion capsule 5, prevents close
Packing material 2 is excessively compressed and damaged.
The inlet 68 of booster 6 is connected by stop valve 1 with pressure medium out of my cabin, the liquid outlet of booster 6
69 are connected with axial expansion capsule 5, and booster 6 is connected by stop valve 28 with the flow container that returns in cabin.Cut in the present embodiment
Only valve 28 and it is connected in water influent pipeline, water influent pipeline connects with inlet 68.
Location guide 11 sets 3~12, is evenly distributed, the inner side of location guide 11 and outer end are provided with screw thread,
The female locating part 4 of tool and stop part 12 are installed on screw thread respectively.
It should be noted that the rotating shaft 9 being previously mentioned in the present embodiment, refers to passing through hull pneumatic shell portion in ship-related products
The power transmission shaft of position, such as tailing axle, flap valve drive link.
Signified surrounding medium in the present embodiment, refer to the medium for surrounding the outside of ship-related products.Such as ship-related products are
During latent device/ship, latent device/ship navigates by water in the seawater, then surrounding medium refers to the seawater outside latent device/ship.
Supercharger structure schematic diagram in this pressing device is as shown in Figure 2.
Booster 6 is dual-piston structure, including pressure chamber 61 and booster cavity 62, pressure chamber 61 and booster cavity 62 respectively with work
One 63 and the phase configuration of piston 2 64 are filled in, is connected before and after piston 1 and piston 2 64 and forms dual-piston structure, pressure chamber 61 is with entering
Liquid mouth 68 connects, and booster cavity 62 connects with liquid outlet 69, and pressure chamber 61 and booster cavity 62 are cylinder, and the diameter of pressure chamber 61 is more than
The diameter of booster cavity 62.Specifically, the diameter of pressure chamber 61 is 1.2~2 times of the diameter of booster cavity 62.
The outer peripheral face of piston 1 is provided with sealing ring 1 and coordinated with pressure chamber 61, and the outer peripheral face of piston 2 64 is set
There is sealing ring 2 66 and coordinate with booster cavity 62, pressure chamber 61 is provided with air vent 67 close to the side of booster cavity 62.
The operation principle of the present invention：
When needing pressing device to provide thrust, stop valve 28 is closed, opens stop valve 1, surrounding medium, which enters, to be increased
Depressor 6, the piston that surrounding medium pressure P1 (being represented in the form of pressure, unit Pa) passes through the integrated design in booster 6
1 and piston 2 64 compress liquid in axial swelling bag 5, initial pressure when making the pressure in axial expansion capsule 5 by installing
P0 is changed into P2 (being represented in the form of pressure, unit Pa).P1 is acted on cross-sectional area S1, P2 (pressure is P0 during initial installation)
Act on cross-sectional area S2.
Each axial expansion capsule 5 automatic expansion under pressure P2 effects produces expansive force F2, multiple expansive force F2 and forms pressure
Clamp force F promotes compression plate 3, and compression plate 3 compresses filler and realizes sealing.Relation between each parameter can be by following formula table
Show：
P2=P1 × S1/S2
F2=A × (P2-P0)
F=n × F2
In formula：S1, S2 unit Jun Wei ㎡；
F2, F unit are N；
Initial internal pressure when P0 is the installation of axial expansion capsule 5, about 10^5Pa；
A is the coefficient of relationship of the pressure and expansive force in each axial expansion capsule 5, and A depends on the type of axial expansion capsule 5
Number, unit ㎡；
N is the quantity of the axial expansion capsule 5 of whole pressing device installation.
When not needing pressing device to provide thrust, stop valve 1 is closed, opens stop valve 28, P1 pressure is reduced to cabin
Chamber pressure, thrust F return to 0, no longer compress filler, compression plate 3 is returned to original position.
From above formula as can be seen that in the design of this pressing device, determine surrounding medium in different pressures P1 (corresponding rings
The different depth of border medium) under needed for thrust F after, by the axial expansion capsule 5, the axial expansion capsule 5 that select suitable types
Quantity, the size of booster 6 (this refers to design different S1/S2 ratios) can obtain preferable thrust F.
Thrust F is as shown in Figure 3 with surrounding medium pressure P1 variation relation schematic diagram.The present invention is using surrounding medium
Pressure is power source, using swelling bag-compression dish structure, quickly automatic on compression plate 3 can be applied and surrounding medium pressure
Adaptable thrust F, compression plate 3 compress filler.Thrust F adaptive changes with the change of surrounding medium pressure, when
Thrust also accordingly increases when surrounding medium pressure is larger, ensure that sealing property；When surrounding medium pressure is relatively low, thrust
Also it is corresponding to reduce, avoid damaging airtight and watertight padding 2 and axis phenomenon by pressure, the normal of sealing property and airtight and watertight padding 2 can be ensured simultaneously
Work.Thrust follows surrounding medium pressure adaptation to change, the bad control of thrust size and speed when overcoming artificial compression
The problem of degree is relatively sealed not in time slowly, fast-response is good.
Can be laid out according to the real space inside ship-related products stop valve 1 and stop valve 28 be arranged on it is easily operated
Position, if occurring to form water smoke during spray leakage, personnel are not easy to be immediately adjacent to airtight and watertight padding 2.Now can from spray leakage position compared with
Remote position operation stop valve, can mitigate personnel's burden, security is good.
The present apparatus can be used for ship-related products pressing device design, this pressing device formed together with seal member one it is complete
Whole sealing device；Also can independent design turn into one only provide thrust self-contained unit.
It should be understood that above-described embodiment is only illustrative of the invention and is not intended to limit the scope of the invention.Art technology
Personnel can make various changes or modifications, without departing from the present invention after the content of the invention lectured has been read to the present invention
The spirit and scope of technical scheme, it all should cover in scope of the presently claimed invention.
Claims (8)
1. a kind of airtight and watertight padding pressing device of adaptive environment pressure medium, including；Including stuffing box (1), the stuffing box
(1) fixed with the bulkhead (10) of hull, stuffing box (1) offers step through-hole, and rotating shaft (9) is led to through step through-hole and with step
Hole forms filling cavity, and airtight and watertight padding (2) is filled in filling cavity；
It is characterized in that：Cavity is correspondingly filled in the inner side of stuffing box (1) and is installed on compression plate (3), compression plate (3) central through hole
Inner side end set flange with filling cavity phase configuration, be installed in the periphery of stuffing box (1) inner side step through hole fixation lead
Bar (11), location guide (11) are connected with compression plate (3), and the end face outside peace of compression plate (3) is corresponded on location guide (11)
Provided with axial expansion capsule (5), the rear end of axial expansion capsule (5) is installed on stop part (12), and front end is acted on the outside of compression plate (3)
End face, described axial expansion capsule (5) are connected by pipeline through booster (6) with pressure medium out of my cabin.
2. the airtight and watertight padding pressing device of adaptive environment pressure medium according to claim 1, it is characterised in that：It is described
Location guide (11) installed along the circumferentially-spaced of step through-hole end face, on compression plate (3) it is circumferentially spaced open up through hole with
Location guide (11) phase configuration.
3. the airtight and watertight padding pressing device of adaptive environment pressure medium according to claim 1, it is characterised in that：Solid
The inner side for determining to correspond to compression plate (3) on guide rod (11) sets finite place piece (4), the locating part (4) and the axial direction of compression plate (3)
Gap is 2mm to 10mm.
4. the airtight and watertight padding pressing device of the adaptive environment pressure medium according to claim 1-3 any one, it is special
Sign is：The inlet (68) of the booster (6) is connected by stop valve one (7) with pressure medium out of my cabin, booster
(6) liquid outlet (69) is connected with axial expansion capsule (5), and booster (6) is by stop valve two (8) with returning flow container phase in cabin
Connection.
5. the airtight and watertight padding pressing device of adaptive environment pressure medium according to claim 3, it is characterised in that：It is described
Location guide (11) set 3~12, be evenly distributed, the inner side of location guide (11) and outer end be provided with screw thread, spiral shell
The female locating part (4) of tool and stop part (12) are installed on line respectively.
6. the airtight and watertight padding pressing device of the adaptive environment pressure medium according to claim 1-3 any one, it is special
Sign is：The booster (6) is dual-piston structure, including pressure chamber (61) and booster cavity (62), pressure chamber (61) and supercharging
Chamber (62) is double with piston one (63) and piston two (64) phase configuration, piston one (63) and the front and rear composition that is connected of piston two (64) respectively
Piston structure, pressure chamber (61) connect with inlet (68), and booster cavity (62) connects with liquid outlet (69), pressure chamber (61) and increasing
Chamber (62) is pressed to be more than booster cavity (62) diameter for cylinder, pressure chamber (61) diameter.
7. the airtight and watertight padding pressing device of adaptive environment pressure medium according to claim 6, it is characterised in that：It is described
Pressure chamber (61) diameter is 1.2~2 times of the booster cavity (62) diameter.
8. the airtight and watertight padding pressing device of adaptive environment pressure medium according to claim 6, it is characterised in that：Piston
The outer peripheral face of one (63) is provided with sealing ring one (65) and coordinated with pressure chamber (61), and the outer peripheral face of piston two (64) is provided with close
Seal two (66) simultaneously coordinates with booster cavity (62)；The pressure chamber (61) is provided with air vent close to the side of booster cavity (62)
(67)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710543896.1A CN107401615A (en) | 2017-07-05 | 2017-07-05 | A kind of airtight and watertight padding pressing device of adaptive environment pressure medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710543896.1A CN107401615A (en) | 2017-07-05 | 2017-07-05 | A kind of airtight and watertight padding pressing device of adaptive environment pressure medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107401615A true CN107401615A (en) | 2017-11-28 |
Family
ID=60404896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710543896.1A Pending CN107401615A (en) | 2017-07-05 | 2017-07-05 | A kind of airtight and watertight padding pressing device of adaptive environment pressure medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107401615A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105270597A (en) * | 2015-10-27 | 2016-01-27 | 中国舰船研究设计中心 | Integrated guide sealing device for ship |
| CN105972217A (en) * | 2016-07-26 | 2016-09-28 | 中国舰船研究设计中心 | Servo-type stern shaft tube emergency sealing device for submersible vehicle |
-
2017
- 2017-07-05 CN CN201710543896.1A patent/CN107401615A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105270597A (en) * | 2015-10-27 | 2016-01-27 | 中国舰船研究设计中心 | Integrated guide sealing device for ship |
| CN105972217A (en) * | 2016-07-26 | 2016-09-28 | 中国舰船研究设计中心 | Servo-type stern shaft tube emergency sealing device for submersible vehicle |
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Application publication date: 20171128 |
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| RJ01 | Rejection of invention patent application after publication |