CN204459160U - The multi-sealed stern shaft seal gland of complete section formula - Google Patents
The multi-sealed stern shaft seal gland of complete section formula Download PDFInfo
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- CN204459160U CN204459160U CN201520068007.7U CN201520068007U CN204459160U CN 204459160 U CN204459160 U CN 204459160U CN 201520068007 U CN201520068007 U CN 201520068007U CN 204459160 U CN204459160 U CN 204459160U
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Abstract
The utility model discloses the multi-sealed stern shaft seal gland of a kind of complete section formula, comprise fixed base and stationary ring supporting base, flap-type spring is installed between fixed base and stationary ring supporting base, sealing pneumatic tyre fixed base is equipped with, stationary ring supporting base is installed with stationary ring, be fixedly attached to drive on clamp ring with mutually the slide rotating ring of fitting of stationary ring, described stationary ring supporting base is also equipped with stuffing box packing, described fixed base, flap-type spring, sealing pneumatic tyre, stationary ring supporting base, stationary ring and rotating ring all adopt subdivision structure, the assembling throw of eccentric of described fixed base and rotating ring center line is 1mm-3mm.Described stationary ring supporting base is also equipped with by hold-down bolt the Gland of press seal filler, and this Gland adopts subdivision structure.This stern shaft seal gland not only seals reliably, and dismantles and change very convenient, is widely used in the stern shaft seal on various naval vessel.
Description
Technical field
The utility model relates to a kind of naval vessel stern shaft seal gland, particularly relates to the stern shaft including spring sheet type end side sealing configuration.
Background technique
Naval vessel stern shaft, using seawater as oiling agent, has the advantages such as cost is low, structure is simple, easy to maintenance.Using water as working medium, both can save a large amount of oil plant and valuable non-ferrous metal, from being avoid leakage of oil to the pollution of water resources at all, all can have a wide range of applications in boats and ships, water conservancy project and deep-sea machinery again.
Water lubrication seal arrangement mainly comprises three kinds of structural types such as lip type rubber seal, packing box seal and end face seal, wherein end face seal structure has that sealing is reliable, leakage rate is minimum, power consumption penalty is little, the feature of long service life, the elastic compensation element of water lubrication face seals mainly contains spiral compression spring and " Ω " flap-type spring structure, it is large that " Ω " flap-type spring structure has compensation rate, elastic force is strong and powerful, can guarantee reliable and stable sealability.
Existing water lubrication flat spring face seals mainly comprises the fixed base be fixedly installed on hull, the flap-type spring in " Ω " shape is provided with between fixed base and stationary ring supporting base, stationary ring supporting base is fixedly installed stationary ring, with stationary ring seal the rotating ring be close to then with driving clamp ring near together with and follow and drive clamp ring to rotate together, fixed base is also equipped with sealing pneumatic tyre and the compressed air channel that is communicated with sealing pneumatic tyre and the cooling water passage leading to sealing surface.Along with the fast development of shipping industry, naval vessel stern tube shaft transmitted power significantly improves, and the slip line speed of the diameter of axle of stern tube shaft, weight and sealing surface also significantly increases.Thus when seal arrangement needs safeguard replacing or occur damaging, stern tube shaft, propeller cavitation will be removed, so that by integrally-built seal arrangement parts such as in the form of annular discs, ring-types from the demolition of stern tube shaft end and replacing, not only workload is large, operation extremely bothers, and often will enter dock and just can carry out, and the somewhat expensive that lies up.Boats and ships are in navigation process, if there is the parts damages of face seals, emergent sealing inflation is carried out to pneumatic tyre sealing, pneumatic tyre is made to be sealed to the seal arrangement of Emergency use, and this pneumatic tyre meet an urgent need sealing can only be applicable to low speed (generally will control in 50 revs/min) run, and working time need be strict controlled in 350 hours, otherwise pneumatic tyre can be worn and inoperative.
Model utility content
For the above-mentioned deficiency existing for prior art, it is easy to assembly that technical problem to be solved in the utility model is to provide a kind of demolition, and sealing is the multi-sealed stern shaft seal gland of complete section formula more reliably.
In order to solve the problems of the technologies described above, the multi-sealed stern shaft seal gland of complete section formula of the present utility model, comprise fixed base and stationary ring supporting base, flap-type spring is installed between fixed base and stationary ring supporting base, sealing pneumatic tyre fixed base is equipped with, stationary ring supporting base is installed with stationary ring, with stationary ring mutually slide the rotating ring of fitting and driving clamp ring near together with and follow and drive clamp ring to rotate together, described stationary ring supporting base is also equipped with stuffing box packing, described fixed base, flap-type spring, sealing pneumatic tyre, stationary ring supporting base, stationary ring and rotating ring all adopt subdivision structure, the assembling throw of eccentric of described fixed base and rotating ring center line is 1mm-3mm.
After adopting said structure, owing to being pressed with stuffing box packing on stationary ring bearing, thus formation end surface mechanical sealing, for three seal structures such as the sealing of emergent pneumatic tyre and material filling type sealings, when the end face seal as sealing pair is broken down, when inefficacy maybe cannot be repaired, can inflate sealing pneumatic tyre, become the seal arrangement of Emergency use, again by Gland press seal filler, then the pressurized air in drainage sealing pneumatic tyre, just can substitute end face mechanical sealing device and normally work with filler seal arrangement of meeting an urgent need, to ensure the normal/cruise on naval vessel, make the reliability of ship navigation, Security is greatly enhanced.Again because fixed base, flap-type spring, sealing pneumatic tyre, stationary ring supporting base, stationary ring and rotating ring all adopt subdivision structure, like this when not tearing axle open, not dismantling propeller cavitation, just can dismantle, keep in repair or change all component on seal arrangement, solve and unload stern rudder, propeller cavitation and take out the hard works such as stern tube shaft, significantly reduce maintenance load, greatly reduce maintenance expenses, shorten engineering time, improve maintenance efficiency.Also because the assembling throw of eccentric of fixed base and rotating ring center line is 1-3mm, make the center line of stern tube shaft and clip thereof the rotating ring on stern tube shaft higher than fixed base and stationary ring supporting base center line certain distance thereof during assembling, during use, stern tube shaft is deflected downwardly (stern tube shaft sinking) under gravity, this processing throw of eccentric just in time compensates the bias of stern tube shaft gravity, this throw of eccentric can also carry out the auto-compensation of device eccentric processing preferably by compensation sealing parts simultaneously, not only ensure that seal arrangement is lasting, reliable sealability, and longer service life, more be suitable in large-diameter stern shaft seal, also the ship hull vibration that ship navigation causes can more be born, shaft vibration and machine work vibration, there is better shock resistance, the function of vibration.
Further mode of execution of the present utility model, described stationary ring supporting base is also equipped with by hold-down bolt the Gland of press seal filler, and this Gland adopts subdivision structure.This structure defines can the stuffing seal of subdivision, can realize gland sealed maintenance easily and change.
Preferred implementation of the present utility model, a side of described flap-type spring is fixedly connected on fixed base by left snap ring, and another side of flap-type spring is fixedly connected in stationary ring supporting base by right snap ring, and this left snap ring and right snap ring are four fraction subdivision structures.This structure is more suitable for stern tube shaft large-diameter, is not only convenient to dismounting and assembling, and sealing effect is more stable, reliable.
Further mode of execution of the present utility model, described sealing pneumatic tyre is bonded into whole circle pneumatic tyre by two subdivision sections.Bonding pneumatic tyre achieves pneumatic tyre and is not tearing maintenance and the replacing of axle situation open.
Further mode of execution of the present utility model, described fixed base is connected with compressed air hose and water-cooling tube, and this compressed air hose is connected with the tire chamber of sealing pneumatic tyre.This structure not only achieves the inflation/deflation to sealing pneumatic tyre, and can carry out Cooling and Lubricator to sealing surface.
Further mode of execution of the present utility model, described stationary ring supporting base is installed with splashproof circle.Splashproof circle can effectively prevent the outer of sealing face leakage water from spattering.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model complete section formula many sealings stern shaft seal gland is described further.
Fig. 1 is the structural representation of a kind of embodiment of the multi-sealed stern shaft seal gland of the utility model complete section formula.
Fig. 2 is the main TV structure schematic diagram of fixed base in structure shown in Fig. 1.
Fig. 3 is the main TV structure schematic diagram of stationary ring supporting base in structure shown in Fig. 1.
Fig. 4 is the main TV structure schematic diagram of stationary ring in structure shown in Fig. 1.
Fig. 5 is the main TV structure schematic diagram of rotating ring in structure shown in Fig. 1.
Fig. 6 is the main TV structure schematic diagram of left (right side) snap ring in structure shown in Fig. 1.
In figure, 1-sealing pneumatic tyre, 2-pneumatic tyre gland, 3-fixed base, 4-pressurized air, 5-water-cooling tube, 6-left snap ring, 7-flap-type spring, 8-right snap ring, 9-stationary ring supporting base, 10-stuffing box packing, 11-splashproof circle, 12-stationary ring, 13-filler wedge, 14-gland bolt, 15-rotating ring, 16-driving clamp ring.
Embodiment
In the multi-sealed stern shaft seal gland of complete section formula shown in Fig. 1, fixed base 3 is installed on the hull on naval vessel with front end boss face, sealing pneumatic tyre 1 is fixedly pressed with by pneumatic tyre gland 2 in the forward end of fixed base 3, sealing pneumatic tyre 1 cuts open by two the annular tube shaped rubber filling gas tyre be built in sections, and these two subdivision sections adopt in erecting bed the whole circle pneumatic tyre that the bonding one-tenth of sulfuration pressing is complete.Compressed air hose 4 and water-cooling tube 5 fixed base 3 be equipped with, compressed air hose 4 leads in the tire chamber of sealing pneumatic tyre 1, when needs are safeguarded or change Sealing, by being filled with certain air pressure in pneumatic tyre sealing, make sealing pneumatic tyre bulge and stop the seawater outside naval vessel wall to invade, sealing pneumatic tyre 1 has the effect of emergent sealing.Water-cooling tube 5 gap and enter between dynamic and static ring sealed friction surface and carry out Cooling and Lubricator outside stern tube shaft.As shown in Figure 2.Fixed base 3 adopts subdivision structure, and two and half ring seats of its fixed base 3 connect into the fixed base of whole circle by connecting bolt.
There is provided flap-type spring 7 cross section of elastic force in " Ω " type to the dynamic and static ring of end face seal, one side of this flap-type spring 7 is fixedly connected on fixed base 3 by left snap ring 6, the opposite side of flap-type spring 7 is fixedly connected on stationary ring supporting base 9 by right clamping ring 8, flap-type spring 7 is also split type structure, directly radially can be separated and remove or assembling.As shown in Figure 6, left clamping ring 6 and left clamping ring 8 adopt identical structure, and both all adopt four fraction subdivision structures, to meet the needs of large-diameter.
The left surface of stationary ring supporting base 9 is embedded with stationary ring 12, is connected between stationary ring 12 with stationary ring supporting base 9 by latch.As shown in Figure 3, stationary ring supporting base 9 adopts subdivision structure, and two semi-ring is interconnected to the domain by connecting bolt.As shown in Figure 4, stationary ring 12 adopts split type structure too, and two semi-ring is butted into the domain.Stationary ring supporting base 9 is set with splashproof circle 11, and splashproof circle 11 is made up of rubber, and its position is positioned at the outside in stationary ring 12 and rotating ring 15 contact friction face, spatters outward to prevent throwing away of sealing face leakage water.
Stationary ring supporting base 9 is pressed with stuffing box packing 10, its material is conventional oil immersion asbestos, oil immersion cotton yarn and rubber etc., stuffing box packing 10 is loaded in the stuffing box of stationary ring supporting base 9, in the outer end of stuffing box packing 10, Gland 13 is housed, Gland 13 is loaded on stationary ring supporting base 9 by gland bolt 14, and adjustment gland bolt 14 and Gland 13 can press seal fillers 10.
As shown in Figure 5, rotating ring 15 also adopts split type structure, and convex tendon and the connecting bolt at two semi-ring back sides connect into the domain.Drive clamp ring 16 also to adopt split type structure, between rotating ring 15 and driving clamp ring 16, be connected with bearing pin, to make rotating ring 15 rotate with driving clamp ring 16, drive clamp ring 16 clips on stern tube shaft.
Claims (6)
1. the multi-sealed stern shaft seal gland of complete section formula, comprise fixed base (3) and stationary ring supporting base (9), flap-type spring (7) is installed between fixed base (3) and stationary ring supporting base (9), sealing pneumatic tyre (1) fixed base (3) is equipped with, stationary ring supporting base (9) is installed with stationary ring (12), be fixedly attached to drive on clamp ring (16) with mutually the slide rotating ring (15) of fitting of stationary ring (12), it is characterized in that: on described stationary ring supporting base (9), stuffing box packing (10) is also housed, described fixed base (3), flap-type spring (7), sealing pneumatic tyre (1), stationary ring supporting base (9), stationary ring (12) and rotating ring (15) all adopt subdivision structure, the assembling throw of eccentric of described fixed base (3) and rotating ring (15) center line is 1mm-3mm.
2. the multi-sealed stern shaft seal gland of complete section formula according to claim 1, it is characterized in that: the Gland (13) that press seal filler (10) are also housed by hold-down bolt (14) on described stationary ring supporting base (9), this Gland (13) adopts subdivision structure.
3. the multi-sealed stern shaft seal gland of complete section formula according to claim 1, it is characterized in that: a side of described flap-type spring (7) is fixedly connected on fixed base (3) by left snap ring (6), another side of flap-type spring (7) is fixedly connected in stationary ring supporting base (9) by right snap ring (8), and this left snap ring (6) and right snap ring (8) are four fraction subdivision structures.
4. the multi-sealed stern shaft seal gland of complete section formula according to claim 1, is characterized in that: described sealing pneumatic tyre (1) is bonded into whole circle pneumatic tyre by two subdivision sections.
5. according to the described multi-sealed stern shaft seal gland of complete section formula arbitrary in claim 1-4, it is characterized in that: described fixed base (3) is connected with compressed air hose (4) and water-cooling tube (5), this compressed air hose (4) is connected with the tire chamber of sealing pneumatic tyre (1).
6. the multi-sealed stern shaft seal gland of complete section formula according to claim 1, is characterized in that: on described stationary ring supporting base (9), be installed with splashproof circle (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520068007.7U CN204459160U (en) | 2015-02-01 | 2015-02-01 | The multi-sealed stern shaft seal gland of complete section formula |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520068007.7U CN204459160U (en) | 2015-02-01 | 2015-02-01 | The multi-sealed stern shaft seal gland of complete section formula |
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| CN204459160U true CN204459160U (en) | 2015-07-08 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156683A (en) * | 2015-11-03 | 2015-12-16 | 东台船用配件有限公司 | Sliding type locking-sealing device |
| CN107255167A (en) * | 2017-08-11 | 2017-10-17 | 无锡市宏源弹性器材有限公司 | Emergency type stern shaft end surface sealing device |
| CN109018214A (en) * | 2018-08-17 | 2018-12-18 | 广新海事重工股份有限公司 | A kind of installation method of the stationary ring end drag ring of the water lubrication head-tail sealing device of refrigerated carrier |
| CN111981129A (en) * | 2020-07-08 | 2020-11-24 | 新兴铸管股份有限公司 | Mechanical sealing device of pressurizing machine |
-
2015
- 2015-02-01 CN CN201520068007.7U patent/CN204459160U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156683A (en) * | 2015-11-03 | 2015-12-16 | 东台船用配件有限公司 | Sliding type locking-sealing device |
| CN107255167A (en) * | 2017-08-11 | 2017-10-17 | 无锡市宏源弹性器材有限公司 | Emergency type stern shaft end surface sealing device |
| CN109018214A (en) * | 2018-08-17 | 2018-12-18 | 广新海事重工股份有限公司 | A kind of installation method of the stationary ring end drag ring of the water lubrication head-tail sealing device of refrigerated carrier |
| CN111981129A (en) * | 2020-07-08 | 2020-11-24 | 新兴铸管股份有限公司 | Mechanical sealing device of pressurizing machine |
| CN111981129B (en) * | 2020-07-08 | 2022-07-12 | 新兴铸管股份有限公司 | Mechanical sealing device of pressurizing machine |
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