CN115416825B - Ship electric propulsion motor rotor extraction method and adjustable support bearing - Google Patents
Ship electric propulsion motor rotor extraction method and adjustable support bearing Download PDFInfo
- Publication number
- CN115416825B CN115416825B CN202210960033.5A CN202210960033A CN115416825B CN 115416825 B CN115416825 B CN 115416825B CN 202210960033 A CN202210960033 A CN 202210960033A CN 115416825 B CN115416825 B CN 115416825B
- Authority
- CN
- China
- Prior art keywords
- rotor
- motor
- pulley
- dummy shaft
- electric propulsion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000605 extraction Methods 0.000 title claims description 14
- 238000000034 method Methods 0.000 claims abstract description 30
- 238000004140 cleaning Methods 0.000 claims abstract description 12
- 229910052802 copper Inorganic materials 0.000 claims abstract description 11
- 239000010949 copper Substances 0.000 claims abstract description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 230000005484 gravity Effects 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 2
- 238000005728 strengthening Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 10
- 238000010276 construction Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000005291 magnetic effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B85/00—Dismantling or scrapping vessels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/20—Building or assembling prefabricated vessel modules or parts other than hull blocks, e.g. engine rooms, rudders, propellers, superstructures, berths, holds or tanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B81/00—Repairing or maintaining vessels
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention relates to a method for extracting a rotor of an electric propulsion motor of a ship and an adjustable support bearing, wherein the method comprises the steps of preparing work, designing a tool, installing a first dummy shaft, installing a second dummy shaft, extracting the motor rotor, arranging the extracted motor rotor in the adjustable support bearing, checking, cleaning and the like. Through setting up adjustable support bearing, keep the rotor aside after motor rotor draws out and wait for the maintenance and the clearance of motor inside to finish the back with rotor lifting, still can be according to actual conditions through adjusting the interval between the copper axle gyro wheel of adjusting bolt, in ship construction and maintenance, when carrying out electric propulsion motor rotor and taking out maintenance work in narrow and small cabin, ensured the safe effectiveness of operation.
Description
Technical Field
The invention relates to the technical field of ship construction, in particular to a method for extracting a rotor of an electric propulsion motor of a ship and an adjustable support bearing.
Background
During sailing of a ship, a ship electric propulsion motor is a main power unit of the ship. Under long-time high-strength operation, foreign matters such as dust can be accumulated in the motor, and some parts can be aged. Periodic disassembly maintenance and cleaning of the electric push motor is therefore necessary. The shaft of the electric push motor is connected with the rotor of the motor, and correspondingly, a stator surrounds the rotor and makes the rotor rotate by utilizing the magnetic effect of current. When maintenance and cleaning of the electric push motor are carried out, the rotor needs to be extracted, and how to efficiently and safely extract the rotor is a complex technical problem. Take a large electric propulsion motor for a ship as an example. The basic parameters are: the rotor shaft is about 11 tons; length 4m; maximum outer diameter 1250mm; the fit clearance between the rotor and the stator is 12mm. Drawing out the rotor therefore requires care to ensure that the rotor is prevented from hitting the stator. The difficulty of controlling the displacement of the part within 12mm in hoisting of the large part is high; in addition, since a section of the motor rotor has only 1.6m space and the rotor shaft is as long as 4m, this is to be in contact with the extension shaft and requires detailed and careful process steps.
In the prior art, china patent utility model relates to 201420311826.5 a device for drawing out and loading a large-sized motor rotor, and discloses a device for jacking and pushing the large-sized motor rotor, which solves the problem of mutual friction between the rotor and a stator, but has a complex structure, is difficult to actually operate, and in addition, the device with the structure type cannot be applied to a specific application space of a large-sized ship, so that the application limitation is caused.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a novel method for extracting a rotor of an electric propulsion motor of a ship and an adjustable support bearing. The method for extracting the rotor of the ship electric propulsion motor and the adjustable support bearing are applied to ship construction and maintenance, and can ensure the safety and the effectiveness of operation when the rotor of the ship electric propulsion motor is extracted and maintained in a shop in a narrow cabin.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The invention firstly relates to a method for extracting a rotor of an electric propulsion motor of a ship, which comprises the following steps:
S1, preparing, namely arranging a first pulley, a second pulley and a third pulley above the rotor center of an electric push motor, wherein the first pulley, the second pulley and the third pulley are provided with corresponding hoist and binding bands, a pulley cross beam is arranged above the rotor center, a temporary hanging ring and an eye plate are arranged on the pulley cross beam, and the temporary hanging ring is provided with corresponding binding bands;
S2, designing a tool, designing a temporary bearing tool for temporarily storing a rotor, and placing the tool below a head pulley beam of a motor;
S3, installing a first dummy shaft, removing a shaft coupling and a cover plate on a motor after preparation work is completed, installing the first dummy shaft on a rotor at a driving end of the motor, sleeving the first dummy shaft into a hub of the rotor of the motor, hanging the first dummy shaft on a second pulley at the tail of the motor by using a binding belt of the second pulley, hanging a temporary hanging ring above a rotor at a non-driving end at the moment, hanging the rotor of the motor on the temporary hanging ring by using a hanging ring binding belt, and gradually transferring the shaft weight of the rotor of the motor to the second pulley at the tail of the motor and the temporary hanging ring;
s4, installing a second dummy shaft, pulling a motor rotor to move forward by using a third pulley block of the head part, protecting the first pulley block and the second pulley block, slowly moving the motor rotor, installing the second dummy shaft when a binding belt of the second pulley at the tail part approaches to the motor, hanging the second dummy shaft by using the first pulley block, loosening the second pulley block and the binding belt of the first dummy shaft, and removing the idle second pulley block to a motor head pulley cross beam;
S5, the motor rotor is pulled out and continues to push the motor rotor towards the head, when the cover plate of the head of the rotor is a certain distance away from the motor, a second pulley binding belt and a third pulley binding belt are arranged at two ends of the root of a motor rotor winding and hung on the second pulley and the third pulley, and meanwhile the binding belt on the first dummy shaft is loosened, a new gravity center distance is calculated again, and the overall balance after the dummy shaft binding belt is loosened can be ensured;
s6, placing the motor on an adjustable support bearing, and after the shaft surface at the bearing of the driving end, the first dummy shaft and the second dummy shaft all come out of the motor, supporting the two ends by using temporary bearings and fixing the two ends by using a bandage hoist;
s7, checking and cleaning, and finally, checking and cleaning the inside of the rotor and the stator of the electric propulsion motor.
In the method for extracting the rotor of the ship electric propulsion motor, in S1, a pulley is 12T-shaped load ton, and a temporary lifting ring is 10T-shaped load ton.
For the method for extracting the rotor of the ship electric propulsion motor, in S3, the length of the first dummy shaft is 900mm, and the first dummy shaft is sleeved at the position of 450mm of the rotor hub.
For the ship electric propulsion motor rotor extraction method of the present invention, in S4, the second dummy shaft length is 1600mm.
For the method for extracting the rotor of the ship electric propulsion motor, in S5, the distance from the front cover plate of the rotor head to the forward motor is 2650-2680mm.
In the method for extracting the rotor of the ship electric propulsion motor, in S5, a new gravity center distance of 4.478 meters is calculated.
The invention also relates to an adjustable support bearing for the ship electric propulsion motor rotor, the adjustable support bearing comprises a support base, an H-shaped support frame and copper shaft idler wheels, the H-shaped support frames are respectively arranged at the left end and the right end of the support base, the H-shaped support frames comprise a transverse support and a vertical support, the vertical support is arranged on the surface of the support base, a support seat is arranged at the bottom of the vertical support, the support seat is connected with the support base through a fastening bolt, the transverse support is connected with the middle part of the vertical support, a reinforcing structure is arranged between the H-shaped support frame and the support base, and the copper shaft sleeves are arranged at the two ends of the H-shaped support frame.
The invention relates to an adjustable support bearing for a ship electric propulsion motor rotor, wherein a transverse bracket and a vertical bracket are connected through welding.
In the adjustable support bearing for the ship electric propulsion motor rotor, the support base is provided with the bolt holes which are connected with the support base through the fastening bolts, and the distance between the two copper rollers is adjusted according to the requirement.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention relates to a method for extracting a rotor of an electric propulsion motor of a ship, and an adjustable support bearing can completely extract the rotor from the interior of the motor through 2 dummy shafts.
2. According to the method for extracting the rotor of the ship electric propulsion motor and the adjustable support bearing, the adjustable support bearing is arranged, after the rotor of the motor is extracted, the rotor is saved aside and kept in the motor after maintenance and cleaning are finished, then the rotor is lifted and plugged back into the motor, and the distance between the copper shaft rollers can be adjusted through the adjustable support bearing according to actual conditions.
3. The method for extracting the rotor of the electric propulsion motor and the adjustable support bearing are applied to ship construction and maintenance, and can ensure the safety and the effectiveness of the operation when the rotor of the electric propulsion motor is extracted and maintained in a narrow cabin.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of the preparation operation S1 of a method for extracting a rotor of an electric propulsion motor of a ship.
Fig. 2 is a schematic view of the structure of an adjustable support bearing for a rotor of an electric propulsion motor of a ship.
Fig. 3 is a side view of an adjustable support bearing for a rotor of an electric propulsion motor of a marine vessel.
Fig. 4 is a schematic view of a first dummy shaft installed in a method of extracting a rotor of an electric propulsion motor of a ship.
Fig. 5 is a schematic diagram showing the movement of the motor rotor after the first dummy shaft is installed in the method for extracting the rotor of the electric propulsion motor of the ship.
Fig. 6 is a schematic diagram of a second dummy shaft installed at S4 of a method of extracting a rotor of an electric propulsion motor of a ship.
Fig. 7 is a schematic diagram of the motor rotor movement after installing the second dummy shaft at S4 of the method for extracting the rotor of the electric propulsion motor of the ship.
Fig. 8 is a schematic diagram of recalculating a new center of gravity distance in S5 of the ship electric propulsion motor rotor extraction method of the invention.
Fig. 9 is a schematic view showing the interior of the shaft motor at the S6 driving end of the rotor extraction method of the electric propulsion motor of the ship.
Fig. 10 is a schematic drawing of the extraction of the shaft face and dummy shaft from the interior of the motor at the S6 drive end bearing of the inventive method for extracting the rotor of the electric propulsion motor of a watercraft.
Fig. 11 is a schematic view of the invention in which both ends are held by temporary bearings after shaft extraction in S6 of a method for extracting a rotor of an electric propulsion motor for a ship.
The reference numerals in the figures are:
1-first pulley, 2-second pulley, 3-third pulley, 4-pulley beam, 5-temporary hanging ring, 6-first dummy shaft, 7-second dummy shaft, 8-adjustable support bearing, 81-support base, 82-H-shaped support frame, 83-copper shaft roller, 84-transverse bracket, 85-vertical bracket, 86-reinforcing structure
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without any inventive effort, are intended to be within the scope of the invention.
The invention firstly relates to a method for extracting a rotor of an electric propulsion motor of a ship, which comprises the following steps:
s1, preparing, arranging a first pulley 1, a second pulley 2 and a third pulley 3 above the rotor center of an electric push motor, wherein the first pulley 1, the second pulley 2 and the third pulley 3 are provided with corresponding hoist and binding bands, a pulley cross beam 4 is arranged above the rotor center, and a temporary hanging ring 5 is arranged on the pulley cross beam 4;
S2, designing a tool, designing an adjustable support bearing 8 for temporarily storing a motor rotor, and placing the tool below a motor head pulley beam 4;
S3, installing a first dummy shaft 6, removing a shaft coupling and a cover plate on a motor after preparation work is completed, installing the first dummy shaft 6 on a rotor at a driving end of the motor, sleeving the first dummy shaft 6 into a hub of the rotor of the motor, hanging the first dummy shaft 6 on a second pulley 2 at the tail of the motor by using a second pulley 2 binding belt, hanging the rotor of the motor on the temporary hanging ring 5 by using a temporary hanging ring 5 binding belt above a rotor at a non-driving end at the moment, and gradually transferring the shaft weight of the rotor of the motor to the second pulley 2 at the tail of the motor and the temporary hanging ring 5;
S4, installing a second dummy shaft 7, pulling a motor rotor to move forward of the head by using a third pulley 3 pulley of the head, protecting the pulleys of the first pulley 1 and the second pulley 2, slowly moving the motor rotor, installing the second dummy shaft 7 when the binding belt of the second pulley 2 at the tail is close to the motor, hanging the second dummy shaft 7 by the first pulley 1, loosening the second pulley 2 pulley and the binding belt of the first dummy shaft 6, and removing the idle second pulley 2 to the motor head pulley cross beam 4;
S5, the motor rotor is pulled out and continues to push the motor rotor to the head, when the motor is moved forward a certain distance away from the motor at the head cover plate of the rotor, a second pulley 2 binding belt and a third pulley 3 binding belt are arranged at the two ends of the motor rotor winding root, the motor rotor winding root is hung on the second pulley 2 and the third pulley 3, the binding belt on the first dummy shaft 6 is loosened, a new gravity center distance is calculated again, and the overall balance after the second dummy shaft 7 binding belt is loosened is guaranteed.
S6, placing the extracted motor rotor on an adjustable support bearing 8, and when the shaft surface at the bearing of the driving end and the first dummy shaft 6 and the second dummy shaft 7 come out of the motor, supporting the two ends by the adjustable support bearing 8 and fixing the motor rotor by using a binding belt and a hoist.
S7, checking and cleaning, and finally, checking and cleaning the inside of the rotor and the stator of the electric propulsion motor.
In a first aspect of the invention, provision is made for the provision of the main tooling required for construction. The adjustable temporary bearing comprises 3 12T travelling cranes and 12T travelling crane beams, a plurality of hoisting hoists, a plurality of hoisting binding belts, a plurality of relay balanced lifting eye plates, 2 dummy shafts and2 large adjustable temporary bearings. The crane beam and the crane mainly hoist the rotor of the electric pushing motor and pull the rotor to realize the purpose of drawing out the rotor. One of the functions of the hoist is to hoist the rotor by matching with the travelling crane. In addition, a plurality of lifting ring eye plates with balanced relay are required to be welded on two sides of the rotor in the extraction direction, the lifting ring eye plates have the functions of keeping the horizontal posture of the rotor and preventing the rotor from rotating to collide with a stator, the rotor is required to be bound and tensioned by matching with a hoisting hoist and a binding belt in specific operation, and in the extraction process, a special person monitors and adjusts the tightness of the hoist in real time. The method uses 2 dummy shafts with the lengths of 900mm of the No. 1 dummy shaft and 1600mm of the No. 2 dummy shaft, the whole extraction process can be divided into 2 sections, and the rotor can be completely extracted from the motor only by installing the two dummy shafts in sequence. Finally, the rotor is required to be supported by an adjustable temporary bearing after being extracted, the rotor is kept aside from the ground and is lifted and plugged back into the motor after maintenance and cleaning of the inside of the motor are finished.
The invention is necessary to prepare before construction, the default ship is in a navigation maintenance state at the moment, and the electric pushing motor is powered off. Firstly, in order to install the dummy shaft, the coupling between the electric push motor and the gear box is removed, so that a 950mm safe space between the output shaft of the electric push motor and the input shaft of the gear box is ensured to be convenient for installing the No. 1 dummy shaft. Second, it was confirmed that the 12T beam above the electric push motor could be used. Thirdly, the two sides of the rotor extraction direction are required to be provided with hanging ring eye plates, and technicians are required to position on site and ensure the installation quality due to the arrangement difference of different types of ships. Fourth, the whole extraction process is only carried out by a special person, the guard line is pulled around, and the idle people and the like cannot enter.
After the coupling is removed, the cover plate, the sliding unit, the jacking oil pump unit, the related pipes and other parts of the motor driving end and the non-driving end are removed, as shown in fig. 1, the initial state of the extraction process is shown, a novel adjustable support bearing 8 for temporarily storing a motor rotor is specially designed, the tool is placed on a motor head pulley beam 4, as shown in fig. 2-3, the adjustable support bearing 8 comprises a support base 81, an H-shaped support frame 82 and copper shaft rollers 83, the left end and the right end of the support base are respectively provided with an H-shaped support frame, the H-shaped support frame comprises a transverse support frame 84 and a vertical support frame 85, the vertical support frame 85 is arranged on the surface of the support base 81, a support frame seat is arranged at the bottom of the vertical support frame 85 and is connected with the support base 81 through fastening bolts, the transverse support frame 84 is connected with the middle part of the vertical support frame 85, a reinforcing structure 86 is arranged between the H-shaped support frame 82 and the support base 81, and the copper shaft rollers 83 are arranged at the two ends of the H-shaped support frame.
The first dummy shaft 6 is installed, as shown in fig. 4, a 900mm long dummy shaft is firstly installed on a rotor at the driving end of a motor, the distance between the rotor hub is sleeved by 450mm, the installation is ensured to be in place, the dummy shaft is hung on a tail pulley by using a binding belt, a temporary hanging ring of 10t is installed above a rotor at the non-driving end, the weight of the rotor shaft is gradually transferred to the tail pulley and the temporary hanging ring,
The head hoist is used for pulling the rotor, the pulley is moved towards the head to be matched, and the two side hoists are protected. The motor rotor is slowly moved, monitored by a special person, and the rotor with the gap of 4mm is not touched, as shown in fig. 5.
A second dummy shaft is installed as shown in figures 6-7 below. When moving to the tail trolley strap close to the motor, a second dummy shaft needs to be installed. At the moment, the hoist tie on the first dummy shaft is not disassembled firstly, after the second dummy shaft is installed, the second dummy shaft is hung by the crane, the length of the second dummy shaft is 1600mm, at the moment, the crane hoist tie of the first dummy shaft is loosened, and the idle crane is disassembled and moved onto the crane beam at the head of the motor.
The motor rotor is drawn out, the center of gravity of the motor rotor is recalculated, as shown in fig. 8, when the distance from the cover plate of the rotor head to the motor is about 2670mm, the root of the rotor winding is provided with a binding belt, the binding belt is hung on a pulley, the binding belt on the dummy shaft is loosened, and the whole balance after the dummy shaft binding belt is loosened is ensured according to the first and second dummy shaft weight center distances, the first and second dummy shaft weights, the motor weight center distance and the motor shaft weight by recalculating the weight center distance of the motor rotor, the new weight center distance is calculated to be 4.478 m.
As shown in fig. 9-11, when the shaft surface and dummy shaft at the bearing of the driving end are all out of the motor, both ends are held by temporary bearings and fixed by a binding belt hoist, and then inspection and cleaning work of the inside of the rotor and stator of the electric push motor can be performed.
The above is only one implementation of the present invention patent, and other similar method substitutions and structural substitutions are also possible based on the same idea, and are not limited to the steps and structural components already described. In summary, the scope of the invention also includes other variations and alternatives that will be apparent to those skilled in the art.
Claims (9)
1. A method for extracting a rotor of an electric propulsion motor of a ship, comprising the steps of:
S1, preparing, arranging a first pulley (1), a second pulley (2) and a third pulley (3) above the rotor center of an electric push motor, wherein the first pulley (1), the second pulley (2) and the third pulley (3) are provided with corresponding pulleys and binding belts, a pulley cross beam (4) is arranged above the rotor center, and a temporary hanging ring (5) is arranged on the pulley cross beam (4);
S2, designing a tool, designing an adjustable support bearing (8) for temporarily storing a motor rotor, and placing the adjustable support bearing (8) below a motor head pulley beam (4);
S3, installing a first dummy shaft (6), removing a shaft coupling and a cover plate on a motor after preparation work is completed, installing the first dummy shaft (6) on a rotor at a driving end of the motor, sleeving the first dummy shaft (6) into a hub of the rotor of the motor, hanging the first dummy shaft (6) on a second pulley (2) at the tail of the motor by using a second pulley 2 binding belt, hanging a temporary hanging ring (5) above a rotor at a non-driving end, hanging the rotor of the motor on the temporary hanging ring (5) by using the temporary hanging ring (5) binding belt, and gradually transferring the shaft weight of the rotor of the motor to the second pulley (2) at the tail of the motor and the temporary hanging ring (5);
S4, installing a second dummy shaft (7), pulling a motor rotor to move forward by using a third pulley (3) block at the head part, protecting the first pulley (1) and the second pulley (2) block, slowly moving the motor rotor, installing the second dummy shaft (7) when the binding belt of the second pulley (2) at the tail part is close to the motor, hanging the second dummy shaft (7) by the first pulley (1), loosening the second pulley (2) block and the binding belt of the first dummy shaft (6), and removing the idle second pulley (2) to the motor head pulley cross beam (4);
s5, the motor rotor is pulled out and continues to push the motor rotor to the head, when the motor rotor head cover plate is moved forward a certain distance away from the motor, a second pulley (2) binding band and a third pulley (3) binding band are arranged at two ends of the motor rotor winding root, the motor rotor winding root is hung on the second pulley (2) and the third pulley (3), meanwhile, the binding band on the first dummy shaft (6) is loosened, a new gravity center distance is calculated again, and the overall balance after the second dummy shaft (7) binding band is loosened is guaranteed;
s6, placing the extracted motor rotor on an adjustable supporting bearing (8), and when the shaft surface at the bearing of the driving end and the first dummy shaft (6) and the second dummy shaft (7) all come out of the motor, supporting the two ends by the adjustable supporting bearing (8) and fixing the motor rotor by using a binding belt and a hoist;
s7, checking and cleaning, and finally, checking and cleaning the inside of the rotor and the stator of the electric propulsion motor.
2. The method for extracting the rotor of the electric propulsion motor of the ship according to claim 1, wherein in the step S1, the weight of the first pulley (1), the second pulley (2) and the third pulley (3) is 12T, and the weight of the temporary lifting ring (5) is 10T.
3. A method of extracting a rotor of an electric propulsion motor of a watercraft according to claim 1, characterized in that in S3 the length of the first dummy shaft (6) is 900mm, the distance of the sleeve into the rotor hub is 450 mm.
4. Method for extracting the rotor of an electric propulsion motor of a watercraft according to claim 1, characterized in that in S4 the length of the second dummy shaft (7) is 1600mm.
5. The method of extracting a rotor of an electric propulsion motor for a watercraft according to claim 1, wherein in S5, the rotor head cover plate is spaced from the advancing motor by a distance of 2650-2680mm.
6. The method of extracting a rotor of an electric propulsion motor for a ship according to claim 1, wherein in S5, a new center of gravity distance of 4.478 meters is calculated.
7. The utility model provides an adjustable support bearing that boats and ships electricity pushed motor rotor was used, its characterized in that, this adjustable support bearing (8) is arranged in step S6 of a boats and ships electricity pushed motor rotor extraction method of any one of claims 1-6, and this adjustable support bearing (8) contains support base (81), H type support frame (82) and copper axle gyro wheel (83), the left and right both ends of support base (81) are equipped with H type support frame (82) respectively, H type support frame (82) contain horizontal support frame (84) and perpendicular support frame (85), perpendicular support frame (85) set up at support base (81) surface, perpendicular support frame (85) bottom is equipped with the stand, stand and support base (81) are connected by fastening bolt, the middle part of perpendicular support frame (85) is connected to horizontal support frame (84), be equipped with between H type support frame (82) and support base (81) additional strengthening (86), copper axle gyro wheel (83) are at H type support frame (82) both ends.
8. Adjustable support bearing for a marine electric propulsion motor rotor according to claim 7, characterized in that the transverse brackets (84) and the vertical brackets (85) are connected by welding.
9. The adjustable support bearing for a ship electric propulsion motor rotor according to claim 7, wherein the support base (81) is provided with bolt holes connected with the bracket base through fastening bolts, and the distance between the copper shaft rollers (83) is adjusted according to the need.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210960033.5A CN115416825B (en) | 2022-08-11 | 2022-08-11 | Ship electric propulsion motor rotor extraction method and adjustable support bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210960033.5A CN115416825B (en) | 2022-08-11 | 2022-08-11 | Ship electric propulsion motor rotor extraction method and adjustable support bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115416825A CN115416825A (en) | 2022-12-02 |
| CN115416825B true CN115416825B (en) | 2024-06-11 |
Family
ID=84198537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210960033.5A Active CN115416825B (en) | 2022-08-11 | 2022-08-11 | Ship electric propulsion motor rotor extraction method and adjustable support bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115416825B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3935610A (en) * | 1974-07-01 | 1976-02-03 | Vogt Norman H | Cleaning apparatus for overhead rails |
| CN103132710A (en) * | 2011-12-01 | 2013-06-05 | 吉林省电力有限公司辽源供电公司 | Method of electriferous integral moving of iron tower of 500-kV electric transmission line |
| CN202997849U (en) * | 2012-11-24 | 2013-06-12 | 秦皇岛华宇通电力科技有限公司 | High-voltage motor rotor pump passing device |
| CN204248361U (en) * | 2014-09-30 | 2015-04-08 | 山东瑞迈凯矿业装备有限公司 | Large-diameter hydraulic jack dismounting maintenance unit |
| CN206077171U (en) * | 2016-09-26 | 2017-04-05 | 中电华元核电工程技术有限公司 | Rotor for nuclear power station horizontal high-pressure motor takes out penetrating device |
| CN107359759A (en) * | 2017-09-01 | 2017-11-17 | 华菱安赛乐米塔尔汽车板有限公司 | The device of Large Synchronous Machine punching is completed using flat car |
| CN209402364U (en) * | 2018-12-11 | 2019-09-17 | 河北大唐国际唐山热电有限责任公司 | Large-size machine is taken out, wears rotor specific purpose tool |
| CN110932492A (en) * | 2019-12-20 | 2020-03-27 | 上海上电机电设备工程有限公司 | A safe and reliable platform for core-pulling assembly and maintenance of medium and large motors |
| CN211444704U (en) * | 2019-11-18 | 2020-09-08 | 中船广西船舶及海洋工程有限公司 | A hoisting tool that can disassemble motor rotors of different sizes |
| CN113381569A (en) * | 2021-06-16 | 2021-09-10 | 华能太仓发电有限责任公司 | Motor rotor penetrating device |
| CN113517790A (en) * | 2021-04-29 | 2021-10-19 | 江苏核电有限公司 | Core-pulling tool for high-voltage motor in box |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20200079479A1 (en) * | 2018-08-24 | 2020-03-12 | Steven John Derrah | Retractable Power Drive Surfboard for Wave Foils |
-
2022
- 2022-08-11 CN CN202210960033.5A patent/CN115416825B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3935610A (en) * | 1974-07-01 | 1976-02-03 | Vogt Norman H | Cleaning apparatus for overhead rails |
| CN103132710A (en) * | 2011-12-01 | 2013-06-05 | 吉林省电力有限公司辽源供电公司 | Method of electriferous integral moving of iron tower of 500-kV electric transmission line |
| CN202997849U (en) * | 2012-11-24 | 2013-06-12 | 秦皇岛华宇通电力科技有限公司 | High-voltage motor rotor pump passing device |
| CN204248361U (en) * | 2014-09-30 | 2015-04-08 | 山东瑞迈凯矿业装备有限公司 | Large-diameter hydraulic jack dismounting maintenance unit |
| CN206077171U (en) * | 2016-09-26 | 2017-04-05 | 中电华元核电工程技术有限公司 | Rotor for nuclear power station horizontal high-pressure motor takes out penetrating device |
| CN107359759A (en) * | 2017-09-01 | 2017-11-17 | 华菱安赛乐米塔尔汽车板有限公司 | The device of Large Synchronous Machine punching is completed using flat car |
| CN209402364U (en) * | 2018-12-11 | 2019-09-17 | 河北大唐国际唐山热电有限责任公司 | Large-size machine is taken out, wears rotor specific purpose tool |
| CN211444704U (en) * | 2019-11-18 | 2020-09-08 | 中船广西船舶及海洋工程有限公司 | A hoisting tool that can disassemble motor rotors of different sizes |
| CN110932492A (en) * | 2019-12-20 | 2020-03-27 | 上海上电机电设备工程有限公司 | A safe and reliable platform for core-pulling assembly and maintenance of medium and large motors |
| CN113517790A (en) * | 2021-04-29 | 2021-10-19 | 江苏核电有限公司 | Core-pulling tool for high-voltage motor in box |
| CN113381569A (en) * | 2021-06-16 | 2021-09-10 | 华能太仓发电有限责任公司 | Motor rotor penetrating device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115416825A (en) | 2022-12-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI352153B (en) | ||
| CN203269442U (en) | Auxiliary suspension device for electric hoist | |
| CN104801955A (en) | Method for mounting large shafts in ship and ocean engineering | |
| CN115416825B (en) | Ship electric propulsion motor rotor extraction method and adjustable support bearing | |
| CN106968253B (en) | Steel pipe pile single-point hoisting system and steel pipe pile single-point hoisting method | |
| CN217947452U (en) | Shaft construction lifting device | |
| CN216613825U (en) | Rolling mill presses pneumatic cylinder on and changes device | |
| CN202279632U (en) | Cable and steel rope synchronization reel type trolley | |
| CN210419067U (en) | Movable plate lifting device for ship box body repair | |
| CN211495715U (en) | Transformer removes trades rail conveying mechanism | |
| CN209873593U (en) | Bridge erecting machine | |
| CN215733934U (en) | Electric trolley traction device for drawing through generator rotor | |
| CN219567271U (en) | Hoisting frame for installing wind power generation equipment | |
| CN208327184U (en) | A kind of construction of hydro project trash rack lifting mounting device | |
| CN212687435U (en) | Communication base station equipment sling cart | |
| CN214653144U (en) | Assembled hoist | |
| CN117185161A (en) | A mobile marine crane boom rack and its moving method | |
| CN104229636A (en) | Heapstead cantilever bridge crane | |
| CN213505704U (en) | Motor-driven vertical pipeline pump bearing part dismounting device | |
| CN214882988U (en) | Aerial rotary lifting appliance for lifting and mounting steel box girder of suspension bridge | |
| CN211139373U (en) | Water feed pump maintenance trolley for power plant | |
| JP5319144B2 (en) | Belt replacement device and belt replacement method for belt conveyor | |
| CN222743835U (en) | A construction material hoist | |
| CN223534763U (en) | An electric drum wire rope take-up and unwinding device | |
| CN221393454U (en) | Electric auxiliary moving device for reinforcement cage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |