CN111017147A - Method for inserting stern tube assembly into shaft hole of ship body - Google Patents
Method for inserting stern tube assembly into shaft hole of ship body Download PDFInfo
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- CN111017147A CN111017147A CN201911177756.2A CN201911177756A CN111017147A CN 111017147 A CN111017147 A CN 111017147A CN 201911177756 A CN201911177756 A CN 201911177756A CN 111017147 A CN111017147 A CN 111017147A
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- tube assembly
- stern tube
- shaft hole
- stern
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Abstract
The invention discloses a method for plugging a stern tube assembly into a ship body shaft hole, which specifically comprises the following steps: installing a hydraulic vehicle, a front hydraulic bracket and a rear hydraulic bracket; hoisting the stern tube assembly onto the front hydraulic bracket and the rear hydraulic bracket; the front hydraulic bracket and the rear hydraulic bracket bear the movement of the stern tube assembly towards the bow direction of the ship; when the front hydraulic bracket moves to the stern end face of the ship body shaft hole, the rear hydraulic bracket and the roller sliding into the ship body shaft hole jointly bear the stern tube assembly to continue moving towards the ship bow direction; before the roller slides out of the shaft hole of the ship body, a hanging strip in the engine room is connected with the dummy shaft, and the stern tube assembly continues to move towards the bow direction of the ship until the stern tube assembly moves to a target position; and adjusting the stern tube assembly to ensure that the central line of the stern tube assembly is coincided with the central line of the shaft hole of the ship body. The invention greatly improves the operation safety, convenience and operation efficiency of the installation work of the stern tube assembly, ensures the integrity of the construction of the engine room and greatly shortens the operation period.
Description
Technical Field
The invention relates to the technical field of ship construction, in particular to a method for plugging a stern tube assembly into a shaft hole of a ship body.
Background
Along with the increasing large-scale ship construction, the stern tube of the stern shaft of the ship is longer and heavier, the ship selecting the stern tube assembly is more and more difficult to plug into the stern shaft hole of the ship body by using the traditional method, and the risk factors are more and more.
Traditional stern tube assembly sets up the platform behind dock or slipway stern axle when filling in the hull shaft hole, the hull planking in the upper rear of the stern axle sets up several calabash and suspender, the mode first gear that uses the manpower to plug into sends into the hull shaft hole stern tube assembly, the welding has the gyro wheel in advance inside the hull shaft hole, as advancing and supporting of stern tube assembly in the hull shaft hole, after stern shaft assembly weight and length increase, calabash tonnage and number must increase, and consume the manpower and increase, efficiency is extremely low, and the suspender is unstable makes the easy striking hull of stern tube assembly, can make even to lift the gyro wheel and collapse.
Disclosure of Invention
In view of the above, the present invention provides a method for plugging a stern tube assembly into a shaft hole of a ship body, so as to solve the problems in the background art.
A method for plugging a stern tube assembly into a shaft hole of a ship body specifically comprises the following steps:
s1, mounting a hydraulic vehicle on the track, and mounting a front hydraulic bracket and a rear hydraulic bracket on the hydraulic vehicle;
s2, hoisting the stern tube assembly onto the front hydraulic bracket and the rear hydraulic bracket;
the bow end surface of the stern tube assembly is provided with an installation plate, and the installation plate is provided with a roller and a dummy shaft;
s3, adjusting the hydraulic vehicle to make the stern tube assembly align to the shaft hole of the ship body; then, the hydraulic vehicle drives the front hydraulic bracket and the rear hydraulic bracket to move synchronously, so that the front hydraulic bracket and the rear hydraulic bracket jointly bear the weight of the stern tube assembly to move towards the bow direction of the ship;
s4, when the front hydraulic bracket moves to the stern end of the ship body shaft hole, the front hydraulic bracket is unloaded, the hydraulic vehicle drives the rear hydraulic bracket to move, so that the rear hydraulic bracket and the roller sliding into the ship body shaft hole jointly bear the stern tube assembly to continue to move towards the ship bow direction;
s5, before the roller slides out of the shaft hole of the ship body, the hanging strip in the engine room is connected with the dummy shaft, then the hydraulic vehicle continues to drive the rear hydraulic bracket to move, so that the rear hydraulic bracket and the stern tube assembly continue to move towards the ship bow direction until the stern tube assembly moves to the target position;
s6, adjusting the stern tube assembly to make the center line of the stern tube assembly coincide with the center line of the shaft hole of the ship body.
Preferably, in step S5, when the roller slides out of the shaft hole of the hull and the stern end surface of the stern tube assembly and the stern end surface of the shaft hole of the hull keep a distance of 100mm to 200mm, the stern tube assembly moves to the target position.
Preferably, the step S6 of adjusting the stern tube assembly so that the centerline of the stern tube assembly coincides with the centerline of the shaft hole of the hull includes the specific steps of:
firstly, removing the hanging strips on the dummy shaft, and placing the bow part of the stern tube assembly on two groups of adjusting components pre-installed at the lower part of the bow end surface of the shaft hole of the hull;
secondly, detaching a dummy shaft and an installation plate on the bow end surface of the stern tube assembly;
then, welding two groups of adjusting components on the upper part of the bow end surface of the shaft hole of the ship body, and respectively welding two groups of adjusting components on the upper part and the lower part of the stern end surface of the shaft hole of the ship body;
and finally, adjusting components on the fore end face and the stern end face of the shaft hole of the ship body to enable the center line of the stern tube assembly to be coincident with the center line of the shaft hole of the ship body.
Preferably, the adjusting assembly comprises an L-shaped plate, a first support screw for adjusting the radial position of the stern tube assembly, and a second support screw for adjusting the axial position of the stern tube assembly; the first supporting screw is fixed on the horizontal section of the L-shaped plate in a threaded manner, and the end part of the first supporting screw abuts against the outer wall of the stern tube assembly; the second supporting screw is fixed on the bending section of the L-shaped steel plate in a threaded mode, and the end portion of the second supporting screw abuts against the bow end face or the stern end face of the stern tube assembly.
Preferably, the dummy shaft comprises a long pipe, a hanging ring fixed at the fore end of the long pipe and a connecting flange fixed at the stern end of the long pipe, wherein a vertical rib plate is fixed at the outer side of the long pipe, and the connecting flange is connected with the fore end of the stern pipe assembly.
Preferably, the vertical rib plates comprise a first vertical rib plate, a second vertical rib plate and a third vertical rib plate, the first vertical rib plate is fixed at the top of the long pipe and arranged along the axial center line of the long pipe, the second vertical rib plate is vertically fixed on the two side faces of the first vertical rib plate, the third vertical rib plate is fixed at the bottom of the long pipe and symmetrically arranged by taking the axial center line of the long pipe as the symmetry axis, and through holes are formed in the first vertical rib plate, the second vertical rib plate and the third vertical rib plate.
Preferably, a plurality of supports are vertically welded on the mounting plate, the plurality of supports are uniformly distributed in the circumferential direction of the mounting plate, and each support is provided with a roller;
the dummy shaft is fixed in the center of the mounting plate.
Preferably, the support is formed by two oppositely arranged set squares, the roller being mounted between the two set squares, the set squares being welded perpendicularly to the edge of the mounting plate in the radial direction of the stern tube and causing the roller to protrude out of the stern tube.
The invention has the beneficial effects that:
1. the invention utilizes the hydraulic bracket to support the stern tube assembly, and utilizes the hydraulic vehicle to drive the hydraulic bracket to move, thereby leading the stern tube assembly to be plugged into the shaft hole of the ship body, reducing the working procedures of manual adjustment and pushing the stern tube assembly to advance, overcoming the problems of large operation difficulty, low safety coefficient and low construction efficiency when the stern tube assembly is plugged into the shaft hole of the ship body in the prior art, greatly improving the operation safety, convenience and operation efficiency of the installation work of the stern tube assembly, ensuring the integrity of cabin construction and greatly shortening the working period.
2. By installing the dummy shaft at the fore end of the stern tube assembly, the hanging strip in the engine room can be connected with the dummy shaft before the roller of the stern tube assembly slides out of the shaft hole of the ship body, so that the balance of upward tension at two sides of the gravity center of the stern tube assembly can be ensured, and safety accidents are avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view of a stern tube assembly inserted into an axial hole of a ship body.
FIG. 2 is an installation view of the dummy shaft.
Fig. 3 is a side view of the stern tube assembly.
Fig. 4 is an end view of the hull shaft hole.
Fig. 5 is a schematic view of the stern tube assembly plugged into the shaft hole of the hull.
Fig. 6 is a schematic structural view of a dummy shaft.
Fig. 7 is a sectional view taken along line a-a in fig. 6.
Fig. 8 is a sectional view taken along line B-B in fig. 6.
The reference numerals in the figures have the meaning:
the device comprises a stern tube assembly 1, a mounting plate 2, a support 3, rollers 4, a hull shaft hole 5, a false shaft 6, a long tube 7, a hanging ring 8, a connecting flange 9, a first vertical rib plate 10, a second vertical rib plate 11, a third vertical rib plate 12, a hydraulic vehicle 13, a rail 14, a front hydraulic bracket 15, a rear hydraulic bracket 16, a cabin 17, an L-shaped plate 18, a first supporting screw 19, a second supporting screw 20 and an adjusting component 21.
Detailed Description
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present application is described in further detail below with reference to specific embodiments and with reference to the attached drawings.
In the description of the present application, unless explicitly stated or limited otherwise, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless specified or indicated otherwise; the terms "connected" and "fixed" are used in a broad sense, for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", and the like used in the embodiments of the present application are described with reference to the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.
The method for plugging the stern tube assembly into the shaft hole of the ship body reduces the working procedures of manual adjustment and propulsion of the stern tube assembly, overcomes the problems of high difficulty, low safety coefficient and low construction efficiency in the operation of plugging the stern tube assembly into the shaft hole of the ship body in the prior art, greatly improves the operation safety, convenience and working efficiency of the installation work of the stern tube assembly, ensures the integrity of cabin construction and greatly shortens the working period.
A circular mounting plate 2 is fixedly welded on the bow end face of the stern tube assembly 1, and the size of the mounting plate 2 is the same as that of the bow end face of the stern tube assembly 1.
The vertical welding has a plurality of supports 3 on the mounting panel 3, and a plurality of supports 3 all install a gyro wheel 4 on every support 3 at the circumferencial direction evenly distributed of mounting panel 2.
The support 3 is composed of two triangular plates which are arranged oppositely, the triangular plates are vertically welded on the edge of the mounting plate 2 along the radial direction of the stern tube assembly 1, the roller 4 is installed between the two triangular plates, and the roller 4 protrudes out of the stern tube assembly 1. When the stern tube assembly 1 extends into the ship body shaft hole 5, the roller 4 contacts with the inner wall of the ship body shaft hole 5, so that the bow end of the stern tube assembly 1 is supported.
A dummy shaft 6 is installed at the center of the mounting plate 2.
The dummy shaft 6 comprises a long pipe 7, a hanging ring 8 fixed at the bow end of the long pipe 7 and a connecting flange 9 fixed at the stern end of the long pipe 7, wherein a vertical rib plate is fixed at the outer side of the long pipe 7, and the connecting flange 9 is connected with the bow end of the stern pipe assembly 1.
The vertical rib plates comprise a first vertical rib plate 10, a second vertical rib plate 11 and a third vertical rib plate 12, the first vertical rib plate 10 is fixed at the top of the long pipe 7 and arranged along the axial center line of the long pipe 7, the second vertical rib plate 11 is vertically fixed on the two side faces of the first vertical rib plate 10, the third vertical rib plate 12 is fixed at the bottom of the long pipe 7 and symmetrically arranged by taking the axial center line of the long pipe 7 as the symmetry axis, and through holes are formed in the first vertical rib plate 10, the second vertical rib plate 11 and the third vertical rib plate 12.
Before the stern tube assembly 1 is plugged into the shaft hole 5 of the ship body, the following work needs to be prepared in advance:
1. welding a mounting plate 2 on the fore end face of a stern tube assembly 1, welding and fixing a dummy shaft 6 in the center of the mounting plate 2, and fixing a plurality of supports 3 provided with rollers 4 on the mounting plate 2;
2. preparing a hydraulic vehicle 13, a hydraulic bracket and an adjusting assembly;
3. two groups of adjusting components are symmetrically welded on the upper part of the bow end surface of the ship body shaft hole 5;
4. a lifting tool such as a hoist and a sling is mounted on a hull structure in the cabin area.
After the preparation work before operation is finished, the stern tube assembly 1 can be plugged into the shaft hole 5 of the ship body.
The invention relates to a method for plugging a stern tube assembly into a shaft hole of a ship body, which specifically comprises the following steps:
s1, the hydraulic vehicle 13 is mounted on the rail 14, and the front hydraulic bracket 15 and the rear hydraulic bracket 16 are mounted on the hydraulic vehicle 13.
S2, the stern tube assembly 1 is hung on the front hydraulic bracket 15 and the rear hydraulic bracket 16.
S3, adjusting the hydraulic vehicle 13 to make the stern tube assembly 1 align to the shaft hole 5 of the ship body; then, the hydraulic vehicle 13 is operated, and the hydraulic vehicle 13 drives the front hydraulic bracket 15 and the rear hydraulic bracket 16 to move synchronously, so that the front hydraulic bracket 15 and the rear hydraulic bracket 16 jointly bear the weight of the stern tube assembly 1 to move towards the bow direction.
The length of the stern tube assembly 1 is slightly longer than that of the shaft hole 5 of the ship body.
S4, when the front hydraulic bracket 15 moves to the stern end of the ship body shaft hole 5 (at the moment, the roller at the stern end of the stern tube assembly slides into the ship body shaft hole), the front hydraulic bracket 15 is unloaded, the hydraulic vehicle 13 drives the rear hydraulic bracket 16 to move, so that the rear hydraulic bracket 16 and the roller 4 sliding into the ship body shaft hole 5 jointly bear the weight of the stern tube assembly 1 and continue to move towards the ship bow direction.
S5, before the roller 4 slides out of the shaft hole 5 of the ship body, the sling in the cabin 17 is connected with the dummy shaft 6 (at this time, the rear hydraulic bracket 16, the sling and the roller 4 at the fore end of the stern tube assembly bear the stern tube assembly 1 together), then the hydraulic vehicle 13 continues to drive the rear hydraulic bracket 16 to move, so that the stern tube assembly 1 continues to move towards the fore direction of the ship until the stern tube assembly 1 moves to the target position.
When the roller 4 slides out of the ship body shaft hole 5 and the distance between the stern end surface of the stern tube assembly 1 and the stern end surface of the ship body shaft hole 5 is kept between 100mm and 200mm, the stern tube assembly 1 is indicated to move to the target position.
S6, after the stern tube assembly 1 moves to the target position, adjusting the stern tube assembly 1 to make the central line of the stern tube assembly 1 coincide with the central line of the ship body shaft hole 5:
specifically, the step of adjusting the stern tube assembly 1 is:
firstly, removing the hanging strips on the dummy shaft 6, and placing the bow part of the stern tube assembly 1 on two groups of adjusting components pre-installed at the lower part of the bow end surface of a ship body shaft hole 5;
secondly, the dummy shaft 6 and the mounting plate 2 on the fore end face of the stern tube assembly 1 are removed;
then, welding two groups of adjusting components on the upper part of the bow end surface of the ship body shaft hole 5, respectively welding two groups of adjusting components on the upper part and the lower part of the stern end surface of the ship body shaft hole 5, wherein the fixing positions of the four groups of adjusting components on the stern end surface correspond to the fixing positions of the four groups of adjusting components on the bow end surface;
and finally, adjusting components on the fore end face and the aft end face of the ship body shaft hole 5 to enable the center line of the stern tube assembly 1 to be coincident with the center line of the ship body shaft hole 5.
Preferably, the adjusting assembly 21 comprises an L-shaped plate 18, a first support screw 19 for adjusting the radial position of the stern tube assembly 1, and a second support screw 20 for adjusting the axial position of the stern tube assembly 1; the first supporting screws 19 are fixed on the horizontal sections of the L-shaped plates 18 in a threaded mode, and the end portions of the first supporting screws 19 abut against the outer wall of the stern tube assembly 1; the second supporting screw 20 is fixed on the bending section of the L-shaped steel plate 18 in a threaded manner, and the end of the second supporting screw 20 abuts against the fore end face or the stern end face of the stern tube assembly 1.
The stern tube assembly 1 can be finely adjusted in the up-down, left-right and left directions by screwing the first supporting screw 19 and the second supporting screw 20 of the adjusting components at different positions on the fore end face and the stern end face of the ship body shaft hole 5, so that the central line of the stern tube assembly 1 is coincident with the central line of the ship body shaft hole 5.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A method for plugging a stern tube assembly into a shaft hole of a ship body is characterized by comprising the following steps:
s1, mounting a hydraulic vehicle on the track, and mounting a front hydraulic bracket and a rear hydraulic bracket on the hydraulic vehicle;
s2, hoisting the stern tube assembly onto the front hydraulic bracket and the rear hydraulic bracket;
the bow end surface of the stern tube assembly is provided with an installation plate, and the installation plate is provided with a roller and a dummy shaft;
s3, adjusting the hydraulic vehicle to make the stern tube assembly align to the shaft hole of the ship body; then, the hydraulic vehicle drives the front hydraulic bracket and the rear hydraulic bracket to move synchronously, so that the front hydraulic bracket and the rear hydraulic bracket jointly bear the weight of the stern tube assembly to move towards the bow direction of the ship;
s4, when the front hydraulic bracket moves to the stern end of the ship body shaft hole, the front hydraulic bracket is unloaded, the hydraulic vehicle drives the rear hydraulic bracket to move, so that the rear hydraulic bracket and the roller sliding into the ship body shaft hole jointly bear the stern tube assembly to continue to move towards the ship bow direction;
s5, before the roller slides out of the shaft hole of the ship body, the hanging strip in the engine room is connected with the dummy shaft, then the hydraulic vehicle continues to drive the rear hydraulic bracket to move, so that the rear hydraulic bracket and the stern tube assembly continue to move towards the ship bow direction until the stern tube assembly moves to the target position;
s6, adjusting the stern tube assembly to make the center line of the stern tube assembly coincide with the center line of the shaft hole of the ship body.
2. The method of claim 1, wherein in step S5, the stern tube assembly is moved to the target position when the roller slides out of the hole and the distance between the stern end surface of the stern tube assembly and the stern end surface of the hole is 100mm-200 mm.
3. The method for plugging the stern tube assembly into the shaft hole of the hull according to claim 1, wherein the step of adjusting the stern tube assembly in step S6 to make the center line of the stern tube assembly coincide with the center line of the shaft hole of the hull comprises the following specific steps:
firstly, removing the hanging strips on the dummy shaft, and placing the bow part of the stern tube assembly on two groups of adjusting components pre-installed at the lower part of the bow end surface of the shaft hole of the hull;
secondly, detaching a dummy shaft and an installation plate on the bow end surface of the stern tube assembly;
then, welding two groups of adjusting components on the upper part of the bow end surface of the shaft hole of the ship body, and respectively welding two groups of adjusting components on the upper part and the lower part of the stern end surface of the shaft hole of the ship body;
and finally, adjusting components on the fore end face and the stern end face of the shaft hole of the ship body to enable the center line of the stern tube assembly to be coincident with the center line of the shaft hole of the ship body.
4. The method of plugging a stern tube assembly into a shaft hole of a ship body according to claim 3, wherein the adjusting assembly comprises an L-shaped plate, a first support screw for adjusting the radial position of the stern tube assembly, and a second support screw for adjusting the axial position of the stern tube assembly; the first supporting screw is fixed on the horizontal section of the L-shaped plate in a threaded manner, and the end part of the first supporting screw abuts against the outer wall of the stern tube assembly; the second supporting screw is fixed on the bending section of the L-shaped steel plate in a threaded mode, and the end portion of the second supporting screw abuts against the bow end face or the stern end face of the stern tube assembly.
5. The method for plugging the stern tube assembly into the shaft hole of the ship body according to claim 1, wherein the dummy shaft comprises a long tube, a hanging ring fixed at the fore end of the long tube and a connecting flange fixed at the stern end of the long tube, wherein a vertical rib plate is fixed at the outer side of the long tube, and the connecting flange is connected with the fore end of the stern tube assembly.
6. The method for plugging the stern tube assembly into the shaft hole of the ship body according to claim 5, wherein the vertical rib plates comprise a first vertical rib plate, a second vertical rib plate and a third vertical rib plate, the first vertical rib plate is fixed at the top of the long tube and arranged along the axial center line of the long tube, the second vertical rib plate is vertically fixed on two side surfaces of the first vertical rib plate, the third vertical rib plate is fixed at the bottom of the long tube and symmetrically arranged by taking the axial center line of the long tube as a symmetry axis, and the first vertical rib plate, the second vertical rib plate and the third vertical rib plate are all provided with through holes.
7. The method for plugging the stern tube assembly into the shaft hole of the hull according to claim 1, wherein a plurality of supporting seats are vertically welded on the mounting plate, the plurality of supporting seats are uniformly distributed in the circumferential direction of the mounting plate, and each supporting seat is provided with a roller;
the dummy shaft is fixed in the center of the mounting plate.
8. The method of plugging a stern tube assembly into a shaft hole of a ship according to claim 1, wherein the support comprises two opposing set squares, the roller is mounted between the two sets squares, and the set squares are welded perpendicularly to the edge of the mounting plate in the radial direction of the stern tube assembly and protrude from the stern tube assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911177756.2A CN111017147A (en) | 2019-11-27 | 2019-11-27 | Method for inserting stern tube assembly into shaft hole of ship body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911177756.2A CN111017147A (en) | 2019-11-27 | 2019-11-27 | Method for inserting stern tube assembly into shaft hole of ship body |
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| Publication Number | Publication Date |
|---|---|
| CN111017147A true CN111017147A (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911177756.2A Pending CN111017147A (en) | 2019-11-27 | 2019-11-27 | Method for inserting stern tube assembly into shaft hole of ship body |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114670989A (en) * | 2022-04-29 | 2022-06-28 | 中船澄西扬州船舶有限公司 | Method for mounting ship stern tube |
-
2019
- 2019-11-27 CN CN201911177756.2A patent/CN111017147A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114670989A (en) * | 2022-04-29 | 2022-06-28 | 中船澄西扬州船舶有限公司 | Method for mounting ship stern tube |
| CN114670989B (en) * | 2022-04-29 | 2024-04-12 | 中船澄西扬州船舶有限公司 | Ship stern tube mounting method |
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