CN113953776B - Method for installing ship propeller shaft bearing - Google Patents
Method for installing ship propeller shaft bearing Download PDFInfo
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- CN113953776B CN113953776B CN202111392073.6A CN202111392073A CN113953776B CN 113953776 B CN113953776 B CN 113953776B CN 202111392073 A CN202111392073 A CN 202111392073A CN 113953776 B CN113953776 B CN 113953776B
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000009434 installation Methods 0.000 claims abstract description 19
- 238000003825 pressing Methods 0.000 claims description 36
- 239000003921 oil Substances 0.000 claims description 22
- 238000007789 sealing Methods 0.000 claims description 16
- 238000012545 processing Methods 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010720 hydraulic oil Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000002023 wood Substances 0.000 claims description 4
- 239000000956 alloy Substances 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000014443 Pyrus communis Nutrition 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The invention relates to a method for installing a ship propeller shaft bearing, which comprises the steps of boring holes in a stern tube bearing seat, respectively fixing guide blocks on the front end face and the rear end face of the stern tube, plugging a screw rod into the stern tube, suspending a hand pulling block in the center of the stern tube, plugging the ship stern direction propeller shaft bearing and the ship bow direction propeller shaft bearing into the stern tube bearing seat respectively, and simultaneously press-fitting the ship stern direction propeller shaft bearing and the ship bow direction propeller shaft bearing into the stern tube bearing seat by using a hydraulic cylinder. The method effectively improves the installation efficiency and the installation precision of the ship propeller shaft bearing. Meanwhile, the method is simple and easy to operate, the initial investment is extremely low, and no extra use cost is generated. In addition, the method is suitable for the same type of ship, has strong universality and is easy to popularize and apply.
Description
Technical Field
The invention relates to a ship construction technology, in particular to installation operation and process quality control of a large ship shafting.
Background
The ship shafting is an important component of the ship power system, and the running state of the ship shafting relates to the sailing performance, maneuvering performance and economic performance of the whole ship. The propeller shaft is used as a propulsion shaft, is a key component of the whole shafting propulsion system, penetrates through the whole stern tube, the stern part of the propeller shaft is connected with the propeller, the bow part of the propeller shaft is connected with the stern shaft or the middle shaft, and a propeller shaft bearing is arranged at the front end and the rear end of the stern tube to support the whole propeller shaft. The paddle shaft bearings can be divided into oil lubricated bearings and water lubricated bearings according to the type of lubrication. The materials of the bearings used are different due to different lubrication modes, which determines the corresponding installation modes. Normally, the material of the contact part of the oil-lubricated bearing and the rotating shaft is usually made of white alloy material, and a mechanical press fit mounting mode is adopted; the water lubricated bearing is made of high molecular polymer materials such as iron pear wood and the like, and adopts a liquid nitrogen cooling installation mode. Because the propeller shaft bearing is positioned below the waterline, the disassembly and the assembly are very inconvenient, the problem of the problem must be repaired by docking, the production and the shipping are affected, and the processing precision and the installation precision of the propeller shaft bearing must be ensured. For a paddle shaft bearing installed by mechanical press fit, as the bearing part is arranged at the bottom, the axial center of an alloy layer is often lifted a little by design in consideration of normal abrasion in the use process. In addition, in order to dynamically monitor the running temperature of the bearing, 2 temperature sensors are symmetrically installed on the left side and the right side of the bottom of the bearing for standby. All this requires that the bearing must be mounted with the outer circle center of the bearing and the center of the alloy layer in the same longitudinal vertical plane.
In the prior art, the conventional method can mark vertical lines of the axes on the front end face and the rear end face of the stern tube before the bearing is mounted, then the bearing is put in place, the center of an upper oil groove and a lower oil groove of the bearing are aligned with the vertical lines of the end faces of the stern tube through steel rule measurement, and meanwhile the positions of the upper oil groove and the lower oil groove of the bearing are monitored continuously in the press fit process. The method can only ensure the precision before installation, cannot ensure that the bearing does not generate rotary offset in the bearing press-fit process, and needs to independently install the bearings at the two ends of the stern tube.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a method for installing a ship propeller shaft bearing.
In order to achieve the above object, the present invention provides the following technical solutions:
a method for installing a ship propeller shaft bearing is characterized in that a guide block is respectively fixed on a stern direction end face and a bow direction end face of a stern tube ship by boring a stern tube bearing seat, a screw rod is plugged into the stern tube, a hand hoist is hung at the center of the stern tube, the stern direction propeller shaft bearing and the bow direction propeller shaft bearing are respectively plugged into the stern tube ship stern direction bearing seat and the bow direction bearing seat, and the stern direction propeller shaft bearing and the bow direction propeller shaft bearing are simultaneously press-fit into the stern tube bearing seat by a hydraulic oil cylinder, and the method specifically comprises the following steps:
firstly, boring a stern tube bearing seat: boring a stern tube bearing seat according to the axis system centering line and the drawing size, and processing a shaft sealing fastening bolt hole and a sealing oil hole on the stern direction end face of the stern tube ship, and processing a shaft sealing fastening bolt hole on the bow direction end face of the stern tube ship;
secondly, installing a bearing guide block: the guide blocks are respectively fixed on the stern direction end face and the stem direction end face of the stern tube ship by two bolts, and when the guide blocks are installed, the two bolt holes of the guide blocks are aligned with the two bolt holes at the stern direction end face and the top of the stem direction end face of the stern tube ship so as to ensure that the guide blocks are positioned at the middle position;
thirdly, installing a screw rod and a wood pillow: the screw rod is plugged into a stern tube, two ends of the screw rod are suspended by using chain blocks, and two wooden pillows are used for supporting the screw rod in the stern tube and enabling the screw rod to be positioned in the center of the stern tube;
fourthly, placing a bearing in the stern tube bearing seat: the stern directional propeller shaft bearing and the bow directional propeller shaft bearing top groove are respectively plugged into a stern directional propeller shaft bearing seat and a bow directional propeller shaft bearing seat along a guide block;
fifthly, installing a bearing pressing plate: two bearing pressing plates are sleeved at two ends of the screw rod respectively, and grooves of the bearing pressing plates are aligned with the guide blocks and are respectively tightly attached to the end faces of the stern directional paddle shaft bearings and the bow directional paddle shaft bearings;
sixth, installing a hydraulic cylinder: a hydraulic cylinder is arranged in the stern direction of the screw rod, and a plunger of the hydraulic cylinder is connected with a bearing pressing plate;
seventh, installing a round nut: screwing in a round nut in the stem direction of the screw rod until the bearing pressing plate is pressed, and screwing in the round nut in the stern direction of the screw rod until the plunger of the oil cylinder presses the bearing pressing plate;
eighth step, bearing press fit installation: the hydraulic cylinder and the electric hydraulic pump are connected by a high-pressure oil pipe, the electric hydraulic pump is started to carry out press fit on a paddle bearing, a plunger of the hydraulic pump presses a stern directional paddle bearing into a bearing seat, and meanwhile, the stem directional paddle bearing is driven to press into the bearing seat by a screw rod until the stern directional paddle bearing and the stem directional paddle bearing completely enter the bearing seat, and the final press-in force of the stern directional paddle bearing and the stem directional paddle bearing is recorded respectively;
ninth, removing the bearing press-fit tool: and (3) removing all the press-fit fixtures of the propeller shaft bearings, and protecting the propeller shaft bearings in the stern direction and the propeller shaft bearings in the bow direction for the next process.
The end face of the stern tube ship in the stern direction in the first step is in a circular ring shape, twelve identical fastening bolt holes are uniformly distributed on the circular ring, sealing oil holes are formed in the left side and the right side of two fastening bolt holes at the top and the bottom of the end face of the stern tube ship in the stern direction, the included angle between the sealing oil holes and the plumb direction is 21 degrees, the end face of the stern tube ship in the bow direction is in a circular ring shape, twelve identical fastening bolt holes are uniformly distributed on the circular ring and are the same as the rear end face of the stern tube, and all the fastening bolt holes are sixty millimeters deep.
The guide block in the second step is of a T-shaped structure, the upper part of the T-shape is a sector surface, holes are formed in the two ends of the sector surface, the holes are positioned in the middle positions of the two ends of the sector surface, the hole diameters are the same, the cross section is L-shaped, and the right side of the lower part of the cross section is provided with a downward inclined surface.
The length of the screw rod in the third step is larger than that of the stern tube, the screw rod is in a steel long cylinder shape, threads are arranged at two ends of the screw rod and used for screwing in round nuts, and the length of the screw rod is larger than the diameter of the screw rod.
The bearing pressing plate in the fifth step is of a convex cylindrical structure, the round surface with smaller end surface area is connected with the cylinder plunger, the round surface with larger end surface area is provided with a groove, the round surface with larger end surface area is connected with the outer end surface of the bearing, the end surface of the bearing pressing plate is provided with five round holes with the same diameter, the center of the circle of one round hole is the same as that of the end surface, the other four round holes are close to the edge of the round surface with smaller end surface area and are uniformly distributed at the same interval, the round hole openings are in the shape of a circular table, the diameter of the round hole opening is larger than the diameter of the aperture, and the through hole of the bearing pressing plate can reduce the weight of the bearing pressing plate and simultaneously play a role in protecting the front bearing end surface and the rear bearing end surface in the press fit process.
The round nut in the seventh step has two opposite round apertures on the side.
Based on the scheme, the method of the invention achieves the following positive and beneficial effects through practical application:
1. the method is suitable for various ship types of bearing press-fit installation of the paddle shaft, has strong universality and is easy to popularize and apply.
2. The guide block designed by the invention plays a guide role in the bearing installation process, so that the bearing installation precision is ensured, and the bearing rotation deviation is avoided.
3. The bearing pressing plate has the advantages that the bearing pressing plate plays a role in protecting the bearing end face in the bearing installation process, and the end face is prevented from being damaged in the bearing press-fit process.
Drawings
FIG. 1 is a schematic view of a stern tube bore in a method for installing a marine propeller shaft bearing according to the present invention.
Fig. 2 is a schematic view of the cross section a in fig. 1.
Fig. 3 is a schematic view of the cross section B in fig. 1.
FIG. 4 is a schematic view of a propeller shaft bearing installation in a method of installing a propeller shaft bearing for a vessel according to the present invention.
Fig. 5 is a schematic view of a propeller shaft bearing used in a method of installing a propeller shaft bearing of a ship according to the present invention.
Fig. 6 is a schematic view of section A-A in fig. 5.
FIG. 7 is a schematic view of a bearing platen for a method of marine vessel propeller bearing installation.
Fig. 8 is a schematic view of the cross section B-B of fig. 7.
Fig. 9 is a schematic view of a bearing guide block for a method of marine vessel propeller bearing installation according to the present invention.
Fig. 10 is a schematic view of section C-C in fig. 9.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the method and dedicated apparatus of the present invention will be described by means of specific examples shown in the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the invention. In the following description, moreover, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts, methods and implementations of the invention.
The invention provides a method for installing a ship propeller shaft bearing, which is implemented as follows.
In this embodiment, the propeller shaft of a certain type is about 6300mm in length, about phi 555mm in diameter, and about 11.5 tons, the front end is connected with the intermediate shaft flange, and the rear end is provided with a distance propeller. The whole propeller shaft passes through the stern tube from front to back and is supported by 2 propeller shaft bearings arranged in bearing seats at the front end and the rear end of the stern tube. The propeller shaft bearing is lubricated and cooled by means of lubricating oil in a stern tube, the propeller shaft bearing is in interference fit with the bearing seat, the propeller shaft bearing is mounted by mechanical press fit, the front bearing is about 425mm long, the outer diameter phi 666mm, the inner diameter phi 556mm and the press-in force of 6.68 tons to 33.27 tons; the length of the rear bearing is about 1120mm, the outer diameter phi 666mm, the inner diameter phi 556mm and the pressing force of 19.05 tons to 92.43 tons. The stern tube is about 3000mm long, the inner cavity is filled with lubricating oil, and shaft sealing devices are arranged at two ends of the stern tube to seal the lubricating oil cavity of the stern tube.
As shown in fig. 2, the present invention is a method for installing a propeller shaft bearing of a ship, the method comprising boring a hole in a propeller shaft bearing seat of a ship, fixing guide blocks on a propeller shaft direction end surface and a ship bow direction end surface of the ship, respectively, inserting a screw rod into a hand block for the propeller shaft to be suspended at the center of the propeller shaft, inserting the propeller shaft bearing of the ship and the propeller shaft bearing of the ship into a propeller shaft bearing seat of the ship and a propeller shaft bearing of the ship bow direction respectively, and simultaneously press-fitting the propeller shaft bearing of the ship and the propeller shaft bearing of the ship into the propeller shaft bearing seat by a hydraulic cylinder, the method comprising the steps of:
firstly, boring a stern tube bearing seat: boring a stern tube bearing seat according to the axis and the drawing size, and processing a shaft sealing fastening bolt hole 15 and a sealing oil hole 14 on the stern end face of the stern tube ship, and processing a shaft sealing fastening bolt hole 15 on the bow end face of the stern tube ship;
secondly, installing a bearing guide block: the guide block 7 is respectively fixed on the stern direction end face and the bow direction end face by two bolts 8, and when the guide block is installed, the two bolt holes of the guide block 7 are aligned with the two bolt holes 15 on the stern direction end face and the bow direction end face so as to ensure that the guide block is positioned at the middle position;
thirdly, installing a screw rod and a wood pillow: the screw rod 10 is plugged into a stern tube, two ends of the screw rod are suspended by using chain blocks 6, and two wooden pillows 11 are used for supporting the screw rod 10 in the stern tube and enabling the screw rod to be positioned in the center of the stern tube;
fourthly, placing a bearing in the stern tube bearing seat: the stern directional propeller shaft bearing 9 and the groove at the top of the bow directional propeller shaft bearing 9 are respectively plugged into a stern directional propeller shaft bearing seat and a bow directional propeller shaft bearing seat along the guide block 7;
fifthly, installing a bearing pressing plate: two bearing pressing plates 5 are sleeved at two ends of a screw rod respectively, grooves of the bearing pressing plates 5 are aligned with the guide blocks and are respectively tightly attached to the stern directional paddle shaft bearing 9 and the end face of the bow directional paddle shaft bearing 9;
sixth, installing a hydraulic cylinder: a hydraulic cylinder 2 is arranged in the stern direction of the screw rod 10, and a cylinder plunger 4 is connected with a bearing pressing plate 5;
seventh, installing a round nut: screwing in the round nut 3 in the stem direction of the screw rod 10 until the bearing pressing plate 5 is pressed, and screwing in the round nut 3 in the stern direction of the screw rod 10 until the oil cylinder plunger 4 presses the bearing pressing plate 5;
eighth step, bearing press fit installation: connecting a hydraulic oil cylinder 2 and an electric hydraulic pump 12 by using a high-pressure oil pipe 1, starting the electric hydraulic pump 12 to press-fit a propeller shaft bearing 9, pressing the propeller shaft bearing 9 in the stern direction into a bearing seat by using an oil cylinder plunger, and driving the propeller shaft bearing 9 in the stem direction into the bearing seat by using a screw rod 10 until the propeller shaft bearing 9 in the stern direction and the propeller shaft bearing 9 in the stem direction completely enter the bearing seat and respectively recording the final pressing force of the propeller shaft bearing 9 in the stern direction and the propeller shaft bearing 9 in the stem direction;
ninth, removing the bearing press-fit tool: and (3) removing all the paddle shaft bearing press-fit tools, and protecting the stern direction paddle shaft bearings 9 and the bow direction paddle shaft bearings 9 for the next process.
The end face of the stern tube ship in the first step is in a circular ring shape, twelve identical fastening bolt holes 15 are uniformly distributed on the circular ring, sealing oil holes 14 are formed in the left side and the right side of two fastening bolt holes (15) at the top and the bottom of the stern tube ship stern end face, the included angle between the sealing oil holes 14 and the plumb direction is 21 degrees, the end face of the stern tube ship in the bow direction is in a circular ring shape, twelve identical fastening bolt holes 15 are uniformly distributed on the circular ring and are identical to the rear end face of the stern tube, and all the fastening bolt holes 15 are sixty millimeters deep.
The guide block 7 in the second step is of a T-shaped structure, the upper part of the T shape is a sector surface, holes are formed in the two ends of the sector surface, the holes are formed in the middle positions of the two ends of the sector surface, the hole diameters are the same, the cross section is L-shaped, the right side of the lower part of the cross section is provided with a downward inclined surface, and the guide block prevents the paddle shaft bearing from rotating and shifting during press fit installation.
The length of the screw rod 10 in the third step is longer than that of the stern tube so as to be convenient to suspend, the screw rod 10 is in a steel long cylinder shape, threads are arranged at two ends of the screw rod and used for screwing in the round nut 3, and the length of the screw rod 10 is longer than the diameter of the screw rod 10.
The bearing pressing plate 5 in the fifth step is of a convex cylindrical structure, the round surface with smaller end surface area is connected with the cylinder plunger 4, the round surface with larger end surface area is provided with a groove, the round surface with larger end surface area is connected with the outer end surface of the paddle shaft bearing 9, five round holes with the same diameter are formed in the end surface of the bearing pressing plate 5, the circle center of one round hole is the same as the circle center of the end surface, the other four round holes are close to the edge of the round surface with smaller end surface area and are uniformly distributed at the same interval, the round hole openings are in the shape of a circular table, the diameter of the round hole opening is larger than the diameter of the aperture, the weight of the bearing pressing plate can be reduced, and meanwhile, the front bearing end surface and the rear bearing end surface are protected in the press fit process.
The side surface of the round nut 3 in the seventh step is provided with two opposite round apertures, so that the round nut can be conveniently screwed into the pressing bearing pressing plate.
The method is suitable for various ship types of press-fit installation of the propeller shaft bearing 9, has strong universality and is easy to popularize and apply.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same; while the invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that; modifications may be made to the specific embodiments of the invention or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the invention, it is intended to cover the scope of the invention as claimed.
Claims (6)
1. A method for installing a ship propeller shaft bearing is characterized in that a guide block is respectively fixed on a stern direction end face and a bow direction end face of a stern tube ship by boring a stern tube bearing seat, a screw rod is plugged into the stern tube, a hand hoist is hung at the center of the stern tube, the stern direction propeller shaft bearing and the bow direction propeller shaft bearing are respectively plugged into the stern tube ship stern direction bearing seat and the bow direction bearing seat, and the stern direction propeller shaft bearing and the bow direction propeller shaft bearing are simultaneously press-fit into the stern tube bearing seat by a hydraulic oil cylinder, and the method specifically comprises the following steps:
firstly, boring a stern tube bearing seat: boring a stern tube bearing seat according to the axis and the drawing size, processing a shaft sealing fastening bolt hole (15) and a sealing oil hole (14) on the stern direction end surface of the stern tube ship, and processing the shaft sealing fastening bolt hole (15) on the bow direction end surface of the stern tube ship;
secondly, installing a bearing guide block: two bolts (8) are used for respectively fixing the guide block (7) on the stern direction end face and the stem direction end face of the stern tube ship, and when the guide block is installed, the two bolt holes of the guide block (7) are aligned with the two bolt holes (15) on the stern direction end face and the stem direction end face so as to ensure that the guide block is positioned at the middle position;
thirdly, installing a screw rod and a wood pillow: the screw rod (10) is plugged into a stern tube, two ends of the screw rod are suspended by using chain blocks (6), and two wooden pillows (11) are used for supporting the screw rod (10) in the stern tube and enabling the screw rod to be positioned in the center of the stern tube;
fourthly, placing a bearing in the stern tube bearing seat: the stern directional propeller shaft bearing (9) and the groove at the top of the stem directional propeller shaft bearing (9) are respectively plugged into a stern directional propeller shaft bearing seat and a stem directional propeller shaft bearing seat along a guide block (7);
fifthly, installing a bearing pressing plate: two bearing pressing plates (5) are sleeved at two ends of the screw rod respectively, grooves of the bearing pressing plates (5) are aligned with the guide blocks, and are respectively tightly attached to the stern direction paddle shaft bearings (9) and the end faces of the bow direction paddle shaft bearings (9);
sixth, installing a hydraulic cylinder: a hydraulic cylinder (2) is arranged in the stern direction of a screw rod (10), and a cylinder plunger (4) is connected with a bearing pressing plate (5);
seventh, installing a round nut: screwing in the round nut (3) in the stem direction of the screw rod (10) until the bearing pressing plate (5) is pressed, and screwing in the round nut (3) in the stern direction of the screw rod (10) until the oil cylinder plunger (4) presses the bearing pressing plate (5);
eighth step, bearing press fit installation: connecting a hydraulic oil cylinder (2) and an electric hydraulic pump (12) by using a high-pressure oil pipe (1), starting the electric hydraulic pump (12) to press fit a propeller shaft bearing (9), driving a ship bow direction propeller shaft bearing (9) to press into the bearing seat by using a lead screw (10) while pressing the ship stern direction propeller shaft bearing (9) into the bearing seat by using an oil cylinder plunger until the ship stern direction propeller shaft bearing (9) and the ship bow direction propeller shaft bearing (9) completely enter the bearing seat and respectively recording the final pressing force of the ship stern direction propeller shaft bearing (9) and the ship bow direction propeller shaft bearing (9);
ninth, removing the bearing press-fit tool: and (3) removing all the paddle shaft bearing press-fit tools, and protecting the stern direction paddle shaft bearings (9) and the bow direction paddle shaft bearings (9) for the next process.
2. The method for installing the ship propeller shaft bearing according to claim 1, wherein the stern tube ship stern direction end face in the first step is a circular ring, twelve identical fastening bolt holes (15) are uniformly distributed on the circular ring, sealing oil holes (14) are formed in the left side and the right side of two fastening bolt holes (15) at the top and the bottom of the stern tube ship stern direction end face, the included angle between the sealing oil holes (14) and the plumb direction is 21 degrees, the stern tube ship bow direction end face is a circular ring, twelve fastening bolt holes (15) which are identical to the stern tube rear end face are uniformly distributed on the circular ring, and all the fastening bolt holes (15) are sixty millimeters deep.
3. A method for installation of a propeller shaft bearing according to claim 1, characterized in that the guide block (7) in the second step is of T-shaped structure, the upper part of the T-shape is a sector, holes are formed at both ends of the sector, the holes are located at the middle positions of both ends of the sector, the hole diameters are the same in height, the cross section is L-shaped, and a downward inclined surface is formed on the right side of the lower part of the cross section.
4. The method for installing the ship propeller shaft bearing according to claim 1, wherein the length of the screw rod (10) in the third step is larger than the length of the stern tube, the screw rod (10) is in a steel long cylinder shape, threads are arranged at two ends of the screw rod for screwing in the round nut (3), and the length of the screw rod (10) is larger than the diameter of the screw rod (10).
5. The method for installing the propeller shaft bearing of the ship according to claim 1, wherein the bearing pressing plate (5) in the fifth step is of a convex cylindrical structure, the round surface with smaller end surface area is connected with the cylinder plunger (4), the round surface with larger end surface area is provided with a groove, the round surface with larger end surface area is connected with the outer end surface of the propeller shaft bearing (9), five round holes with the same diameter are formed in the end surface of the bearing pressing plate (5), the center of one round hole is the same as the center of the end surface, the other four round holes are close to the edge of the round surface with smaller end surface area and are uniformly distributed at the same interval, the round hole openings are in the shape of a round table, and the diameter of the round hole openings is larger than the diameter of the aperture.
6. A method for installation of a propeller shaft bearing according to claim 1, characterized in that the round nut (3) in the seventh step is flanked by two opposite round apertures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111392073.6A CN113953776B (en) | 2021-11-19 | 2021-11-19 | Method for installing ship propeller shaft bearing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111392073.6A CN113953776B (en) | 2021-11-19 | 2021-11-19 | Method for installing ship propeller shaft bearing |
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| Publication Number | Publication Date |
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| CN113953776A CN113953776A (en) | 2022-01-21 |
| CN113953776B true CN113953776B (en) | 2023-12-08 |
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| CN202111392073.6A Active CN113953776B (en) | 2021-11-19 | 2021-11-19 | Method for installing ship propeller shaft bearing |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114918646A (en) * | 2022-04-29 | 2022-08-19 | 中船广西船舶及海洋工程有限公司 | Shrinkage mounting process for babbitt metal bearing of stern tube of large ship |
| CN115283708B (en) * | 2022-07-14 | 2024-06-11 | 沪东中华造船(集团)有限公司 | Method for boring holes in shaft system after hoisting of ship main engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202462344U (en) * | 2011-12-27 | 2012-10-03 | 芜湖新联造船有限公司 | Ship stern bearing press-in frame |
| CN202752818U (en) * | 2012-08-07 | 2013-02-27 | 浙江增洲造船有限公司 | Centering and auxiliary installation device of ship propeller shaft |
| CN108915011A (en) * | 2018-07-30 | 2018-11-30 | 中交天津航道局有限公司 | In a kind of school of cutter suction dredger reamer shafting and installation method |
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| CN111204422A (en) * | 2020-02-10 | 2020-05-29 | 江南造船(集团)有限责任公司 | Straight line alignment positioning system of ship shafting equipment |
| CN211709177U (en) * | 2019-09-16 | 2020-10-20 | 天津新港船舶重工有限责任公司 | Stern tube bearing mounting device |
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2021
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| CN202462344U (en) * | 2011-12-27 | 2012-10-03 | 芜湖新联造船有限公司 | Ship stern bearing press-in frame |
| CN202752818U (en) * | 2012-08-07 | 2013-02-27 | 浙江增洲造船有限公司 | Centering and auxiliary installation device of ship propeller shaft |
| WO2019097816A1 (en) * | 2017-11-20 | 2019-05-23 | ジャパン マリンユナイテッド株式会社 | Shaft sealing device for marine contra-rotating propeller device |
| CN108915011A (en) * | 2018-07-30 | 2018-11-30 | 中交天津航道局有限公司 | In a kind of school of cutter suction dredger reamer shafting and installation method |
| CN110239698A (en) * | 2019-06-24 | 2019-09-17 | 高峰 | A kind of non-maintaining ship rear driving system from centering |
| CN211709177U (en) * | 2019-09-16 | 2020-10-20 | 天津新港船舶重工有限责任公司 | Stern tube bearing mounting device |
| CN111204422A (en) * | 2020-02-10 | 2020-05-29 | 江南造船(集团)有限责任公司 | Straight line alignment positioning system of ship shafting equipment |
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| CN113953776A (en) | 2022-01-21 |
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