CN212776198U - Submerged stern shaft tube compensation device - Google Patents
Submerged stern shaft tube compensation device Download PDFInfo
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- CN212776198U CN212776198U CN202021322246.8U CN202021322246U CN212776198U CN 212776198 U CN212776198 U CN 212776198U CN 202021322246 U CN202021322246 U CN 202021322246U CN 212776198 U CN212776198 U CN 212776198U
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- end flange
- corrugated pipe
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Abstract
The utility model relates to a submerged stern shaft tube compensation device, which comprises an end face flange, a corrugated pipe, a guide cylinder and a filling piece; the end face flange comprises a head end flange and a tail end flange, the head end flange is arranged on the hull structure, and the tail end flange is arranged on the flange face corresponding to the stern shaft tube structure; the head end and the tail end of the corrugated pipe are respectively and fixedly connected with the head end flange and the tail end flange; the guide cylinder is arranged in the corrugated pipe, and the head end of the guide cylinder is fixed on the inner wall of the head end flange; the filling piece is filled in the gap between the corrugated pipe and the guide cylinder. The utility model, the stern shaft tube and the hull structure together form a tubular sealing structure, which ensures the circulation environment of forced cooling water; adopting a corrugated pipe structure to compensate longitudinal and radial deformation displacement; the internal fixed guide shell structure avoids fluid turbulence noise; the packing piece between bellows and draft tube avoids inside silt to pile up.
Description
Technical Field
The utility model relates to a ship propulsion system technical field, concretely relates to latent stern central siphon compensation arrangement that uses.
Background
The stern shaft tube is a common device for a ship propulsion system, a stern shaft bearing is arranged in the stern shaft tube, and a stern shaft penetrates through the stern shaft bearing, so that a good working environment is provided for the stern shaft bearing. For the oil lubrication bearing, the stern shaft tube is used for forming a sealed oil cavity after being installed with a stern shaft bearing, a sealing device and the like, and lubricating oil required by the operation of the stern shaft bearing is filled in the sealed oil cavity; for the water lubrication bearing, the stern shaft tube is a transmission channel of forced cooling water of the stern shaft bearing so as to ensure a forced water flow environment required by the operation of the stern shaft bearing.
The conventional ship stern shaft tube is a steel thin-wall tube section and is directly connected with a stern shaft bearing mounting sleeve and a ship body structure, but for a deep submergence vehicle type underwater special ship, the pressure hull has the problem of pressure bearing deformation in the deep submergence process, the risk that the connection surface of the stern shaft tube and the pressure hull is pulled to deform or even is broken can be caused, and the function of the stern shaft tube is damaged or even the normal operation of a shaft system is directly endangered.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in the problem that the special boats and ships stern central siphon of deep submergence ware class that exists to above-mentioned prior art can't adapt to the withstand voltage hull deformation among the deep submergence process, provides a submarine stern central siphon compensation arrangement, and the device is used for connecting stern central siphon structure and withstand voltage hull, and the deflection that withstand voltage hull pressurized produced under the compensation submergence ware deep submergence condition guarantees the effective connection between stern central siphon and the withstand voltage hull, ensures that the intraductal operational environment of stern central siphon is effectively sealed.
The utility model discloses a solve the technical scheme that technical problem that the aforesaid provided adopted and be:
a kind of submarine stern shaft tube compensating gear, including end flange, corrugated pipe, draft tube and packing element; the end face flange comprises a head end flange and a tail end flange, the head end flange is arranged on the hull structure, and the tail end flange is arranged on the flange face corresponding to the stern shaft tube structure; the head end and the tail end of the corrugated pipe are respectively and fixedly connected with the head end flange and the tail end flange; the guide cylinder is arranged in the corrugated pipe, and the head end of the guide cylinder is fixed on the inner wall of the head end flange; the filling piece is filled in a gap between the corrugated pipe and the guide cylinder.
In the above scheme, the corrugated pipe is of a non-reinforced U-shaped multilayer corrugated pipe structure.
In the scheme, the corrugated pipe is designed into a single-section or multi-section corrugated pipe according to the actual use requirement of compensation displacement, the longitudinal compensation displacement range is 10-100 mm, and the radial compensation displacement is 5-50 mm.
In the scheme, the head end of the guide cylinder is connected with a cushion block in a welding mode, the cushion block is positioned on the inner wall of the head end flange, and a mounting hole is formed in the cushion block and radially fixed on the head end flange through a screw; the tail end of the guide shell is in a free state.
In the above scheme, the longitudinal length of the guide shell is greater than the longitudinal arrangement length of the corrugated pipe.
In the above scheme, the filling member is made of soft rubber material.
In the above scheme, the submerged stern shaft tube compensation device further comprises a hoisting rod, a lifting lug and a fastener; the lifting lug is installed on the end face flange through a threaded hole, the lifting rod penetrates through two lifting lug inner holes, and the fastening piece realizes fixation between the lifting rod and the lifting lug inner hole.
In the scheme, the head end flange, the hull structure and the installation surface of the corrugated pipe are electrically insulated by adopting the insulating gasket.
The beneficial effects of the utility model reside in that:
1. the device can be used for solving the deformation coordination problem of the stern shaft tube and the pressure hull structure of special ships such as deep submergence vehicles in the deep submergence process, and the device, the stern shaft tube and the hull structure jointly form a tubular sealing structure to ensure the circulation environment of forced cooling water; the corrugated pipe is adopted to compensate the longitudinal and radial deformation displacement of the pressure hull; the guide shell structure is fixed in the corrugated pipe to avoid fluid turbulence noise; the packing piece between bellows and draft tube avoids inside silt to pile up.
2. The utility model discloses the essential element all adopts copper alloy or titanium alloy material to improve device corrosion resisting ability.
3. The utility model discloses specially adapted boats and ships deep diving is with advancing the shafting, can regard as the important guarantee of stern shaft tube structure safe in utilization.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is a structural diagram of the submersible stern tube compensator of the present invention.
In the figure: 11. a head end flange; 12. a tail end flange; 2. a bellows; 3. a draft tube; 31. cushion blocks; 32. a screw; 4. a filling member; 5. hoisting the rod; 6. lifting lugs; 7. a fastener.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in FIG. 1, the utility model provides a pair of submarine stern shaft tube compensation device for install water lubricated bearing and need the special ship propulsion system of deep submergence vehicle class of forced cooling water. The submerged stern shaft tube compensating device comprises an end face flange, a corrugated pipe 2, a guide cylinder 3 and a filling piece 4.
The end flange is the installation surface of the device and an external system and comprises a head end flange 11 and a tail end flange 12. The head end flange 11 is arranged on a pressure hull structure of the submersible and is an inlet of forced cooling water. The tail end flange 12 is installed on the flange surface corresponding to the stern shaft tube structure. The utility model discloses an end face flange installs respectively on the withstand voltage hull structure of latent ware and stern central siphon to constitute tubular seal structure jointly with it, guarantee the interior seal environment of stern central siphon, make the sustainable intraductal circulation of following of forced cooling water, guarantee the good lubrication and the cooling of stern central bearing.
The bellows 2 is the main displacement compensation structure of this device, and its head and the tail both ends pass through welding mode and end flange joint. The corrugated pipe 2 is of a non-reinforced U-shaped multi-layer corrugated pipe structure. The corrugated pipe 2 can automatically compensate the displacement deviation of the mounting surfaces at two sides when the mounting surface of the ship body structure deforms along the longitudinal direction or the radial direction of the pressure-resistant body, and the reliable use of the sealing environment in the pipe is ensured. The corrugated pipe 2 can be designed into a single-section or multi-section corrugated pipe according to the actual use requirement of compensation displacement, the longitudinal compensation displacement range can reach 10-100 mm, and the radial compensation displacement can reach 5-50 mm.
The draft tube 3 is a fluid guide part in the device, the draft tube 3 is arranged in the corrugated tube 2, the head end of the draft tube is connected with the cushion block 31 in a welding mode, the cushion block 31 is located on the inner wall of the head end flange 11, the cushion block 31 is provided with a mounting hole, and the draft tube can be radially fixed on the head end flange 11 through a mounting screw 32. The tail end of the guide shell 3 is in a free state, and the guide shell 3 is longitudinally arranged to cover the longitudinal arrangement size of the corrugated pipe 2, so that fluid noise caused by turbulent flow generated by cooling water in the device passing through the corrugated pipe 2 is avoided, and noise reduction of the compensation device is facilitated.
The filler 4 is filled in a gap between the bellows 2 and the guide cylinder 3. The filling piece 4 is made of soft rubber materials, fills the zigzag space inside the corrugated pipe 2, does not influence the stretching or compressing process of the corrugated pipe 2, and can avoid the sediment accumulation of the zigzag space inside the corrugated pipe 2 when the corrugated pipe is soaked in water rich in impurities such as sediment for a long time.
Further optimize, in this embodiment, latent stern central siphon compensation arrangement still includes hoist and mount pole 5, lug 6 and fastener 7, and three parts are removable parts, for the location mounting in device transportation and the installation, can avoid the deformation of device flexible pipe body in transportation and the installation, and these three parts need all demolish after the device installation finishes. The specific installation mode is as follows: the lifting lugs 6 are installed on the end face flanges through threaded holes, after the lifting rod 5 penetrates through the lifting lug hole at one end, the middle of the lifting rod is screwed into the two fasteners 7 and penetrates out of the lifting lug hole in the other end face flange, the two lifting lug outer sides are respectively screwed into one fastener 7, the longitudinal position of the lifting rod 5 is adjusted through the rotating fasteners 7, the fasteners 7 are locked, and the integral fixation of the device is achieved.
Further preferably, in this embodiment, the end flange, the bellows 2, the draft tube 3, and the fastening member 7 are made of a copper alloy or a titanium alloy having seawater corrosion resistance. And the head end flange 11 and the mounting surface of the ship body structure and the corrugated pipe 2 are electrically insulated by adopting an insulating gasket, so that the potential corrosion between the device and the ship body structure is avoided, and the long-term reliable use of the device is ensured.
While the embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many modifications may be made by one skilled in the art without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (8)
1. A submerged stern shaft tube compensation device is characterized by comprising an end face flange, a corrugated pipe, a guide cylinder and a filling piece; the end face flange comprises a head end flange and a tail end flange, the head end flange is arranged on the hull structure, and the tail end flange is arranged on the flange face corresponding to the stern shaft tube structure; the head end and the tail end of the corrugated pipe are respectively and fixedly connected with the head end flange and the tail end flange; the guide cylinder is arranged in the corrugated pipe, and the head end of the guide cylinder is fixed on the inner wall of the head end flange; the filling piece is filled in a gap between the corrugated pipe and the guide cylinder.
2. The submersible stern tube compensator according to claim 1, wherein the corrugated tube is a non-reinforced U-shaped multi-layer corrugated tube structure.
3. The submersible stern tube compensation device as claimed in claim 1 or 2, wherein the bellows is designed as a single-section or multi-section bellows according to actual use requirements of compensation displacement, the longitudinal compensation displacement range is 10-100 mm, and the radial compensation displacement range is 5-50 mm.
4. The submersible stern tube compensating device as defined in claim 1, wherein the head end of the draft tube is connected to a pad block by welding, the pad block is located on the inner wall of the head end flange, and the pad block is provided with mounting holes and is radially fixed to the head end flange by screws; the tail end of the guide shell is in a free state.
5. The submersible stern tube compensating apparatus as claimed in claim 1 or 4, wherein the guide tube has a longitudinal length greater than a longitudinal arrangement length of the bellows.
6. The submersible stern tube compensator according to claim 1, wherein the filler is a soft rubber material.
7. The submersible stern tube compensator according to claim 1, further comprising a lifting rod, a lifting lug and a fastener; the lifting lug is installed on the end face flange through a threaded hole, the lifting rod penetrates through two lifting lug inner holes, and the fastening piece realizes fixation between the lifting rod and the lifting lug inner hole.
8. The submersible stern tube compensator according to claim 1, wherein the head end flange is electrically insulated from the hull structure and the installation surface of the corrugated tube by an insulating gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021322246.8U CN212776198U (en) | 2020-07-07 | 2020-07-07 | Submerged stern shaft tube compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021322246.8U CN212776198U (en) | 2020-07-07 | 2020-07-07 | Submerged stern shaft tube compensation device |
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| Publication Number | Publication Date |
|---|---|
| CN212776198U true CN212776198U (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021322246.8U Active CN212776198U (en) | 2020-07-07 | 2020-07-07 | Submerged stern shaft tube compensation device |
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| CN (1) | CN212776198U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115711334A (en) * | 2022-11-02 | 2023-02-24 | 中国船舶重工集团公司第七一九研究所 | Vibration isolation pipeline based on instability |
-
2020
- 2020-07-07 CN CN202021322246.8U patent/CN212776198U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115711334A (en) * | 2022-11-02 | 2023-02-24 | 中国船舶重工集团公司第七一九研究所 | Vibration isolation pipeline based on instability |
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