CN115416825A - 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
- CN115416825A CN115416825A CN202210960033.5A CN202210960033A CN115416825A CN 115416825 A CN115416825 A CN 115416825A CN 202210960033 A CN202210960033 A CN 202210960033A CN 115416825 A CN115416825 A CN 115416825A
- 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.)
- Granted
Links
- 238000000605 extraction Methods 0.000 title description 10
- 238000000034 method Methods 0.000 claims abstract description 31
- 238000004140 cleaning Methods 0.000 claims abstract description 10
- 229910052802 copper Inorganic materials 0.000 claims abstract description 10
- 239000010949 copper Substances 0.000 claims abstract description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 9
- 230000005484 gravity Effects 0.000 claims description 10
- 238000002360 preparation method 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
- 238000004804 winding Methods 0.000 claims description 4
- 238000013459 approach Methods 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 2
- 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
- 238000009434 installation Methods 0.000 description 1
- 230000005291 magnetic effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Images
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 motor rotor of a ship electric propulsion motor and an adjustable supporting 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, placing the extracted motor rotor on the adjustable supporting bearing, checking, cleaning and the like. Through setting up adjustable support bearing, take out the back with the motor rotor and keep off the ground keeping aside the inside maintenance of waiting for the motor and the clearance back of finishing, again with the rotor hoist and plug back in the motor, still can adjust the interval between the copper axle gyro wheel through adjusting bolt according to actual conditions, in shipbuilding and maintenance, carry out electric propulsion motor rotor in narrow and small cabin and take out the maintenance work time, ensured the safety and validity of operation.
Description
Technical Field
The invention relates to the technical field of ship construction, in particular to a ship electric propulsion motor rotor extraction method and an adjustable support bearing.
Background
During the sailing of a ship, the electric propulsion motor of the ship is a main power device of the ship. Under long-time high-intensity work, foreign matters such as dust can be accumulated in the motor, and some parts can be aged. Regular disassembly maintenance and cleaning of the electric propulsion motor is therefore necessary. The shaft of the electric propulsion motor is connected with the rotor of the motor, and the stator is corresponding to the shaft, surrounds the rotor and enables the rotor to rotate by the magnetic effect of the current. When the electric push motor is maintained and cleaned, 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 certain type of ship as an example. The basic parameters are as follows: about 11 tons of rotor shaft; a length of 4m; maximum outer diameter 1250mm; the fit clearance between the rotor and the stator is 12mm. Extracting the rotor therefore requires care to ensure that the rotor is prevented from colliding with the stator. The difficulty in controlling the displacement of the large part within 12mm during hoisting is high; in addition, since the motor rotor has only 1.6m space in one section and the rotor shaft is as long as 4m, it needs to be operated by contacting with the extension shaft and needs to make detailed process steps.
Among the prior art, chinese utility model patent involves 201420311826.5 a large-scale electric motor rotor takes out, the device of packing into, and it discloses a large-scale electric motor rotor jack-up device of advancing, though solved the problem of looks mutual friction between rotor and the stator, but the device structure is complicated, and actual operation is comparatively difficult, and in addition, the device of above-mentioned structure type can't use in large-scale boats and ships specific application space, causes the limitation of using.
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 a ship electric propulsion motor and an adjustable support bearing. The method for extracting the ship electric propulsion motor rotor and the adjustable support bearing are applied to ship construction and maintenance, and safety and effectiveness of operation can be guaranteed when the ship electric propulsion motor rotor is extracted and maintained in a store in a narrow cabin.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention firstly relates to a method for extracting a rotor of a ship electric propulsion motor, which comprises the following steps:
s1, preparing, namely arranging a first pulley, a second pulley and a third pulley above the center of a rotor of an electric push motor, wherein the first pulley, the second pulley and the third pulley are provided with corresponding hoists and binding bands, a pulley cross beam is arranged above the center of the rotor, a temporary hoisting ring and an eye plate are arranged on the pulley cross beam, and the temporary hoisting ring is provided with a corresponding binding band;
s2, designing a tool, namely designing a temporary bearing tool for temporarily storing a rotor, and placing the tool below a pulley beam at the head part of the motor;
s3, mounting a first dummy shaft, removing a coupling and a cover plate on the motor after the preparation work is finished, mounting the first dummy shaft on a rotor at the 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 part of the motor by using a binding band of the second pulley, hanging the rotor of the motor on a temporary hanging ring by using a hanging ring binding band above the rotor at the non-driving end, and gradually transferring the shaft weight of the rotor of the motor to the second pulley at the tail part of the motor and the temporary hanging ring;
s4, mounting a second dummy shaft, pulling the motor rotor to move towards the front of the head by using a third pulley block at the head, protecting the first pulley block and the second pulley block, slowly moving the motor rotor, and mounting the second dummy shaft when a binding band of a second pulley block at the tail approaches the motor, hanging the second dummy shaft by using the first pulley block, loosening the second pulley block and the binding band of the first dummy shaft, and dismounting and moving the idle second pulley block to a pulley beam at the head of the motor;
s5, the motor rotor is pulled out and continuously pushed towards the head, when the cover plate of the head of the rotor is a certain distance away from the forward moving motor, a second pulley binding band and a third pulley binding band are installed at two ends of the root of the motor rotor winding and hung on a second pulley and a third pulley, meanwhile, the binding bands on the first dummy shaft are loosened, a new gravity center distance is recalculated, and the integral balance after the dummy shaft binding bands are loosened can be ensured;
s6, placing the bearing on an adjustable supporting 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 two ends of the bearing by using temporary bearings and fixing the bearing by using a binding belt hoist;
and S7, checking and cleaning, and finally, checking and cleaning the inner parts of the rotor and the stator of the electric propulsion motor.
For the method for extracting the electric propulsion motor rotor of the ship, in S1, a tackle is loaded with 12T tons, and a temporary hoisting ring is loaded with 10T tons.
For the method for extracting the electric propulsion motor rotor of the ship, in S3, the length of the first dummy shaft is 900mm, and the first dummy shaft is sleeved into the hub of the rotor for 450 mm.
For the method for extracting the electric propulsion motor rotor of the ship, in S4, the length of the second dummy shaft is 1600mm.
In S5, the distance between the rotor head cover plate and the forward-moving motor is 2650-2680mm.
For the method for extracting the electric propulsion motor rotor of the ship, a new gravity center distance is calculated to be 4.478 meters in S5.
The invention also relates to an adjustable supporting bearing for the ship electric push motor rotor, which comprises a supporting base, an H-shaped supporting frame and copper shaft rollers, wherein the left end and the right end of the supporting base are respectively provided with the H-shaped supporting frame, the H-shaped supporting frame comprises a transverse support and a vertical support, the vertical support is arranged on the surface of the supporting base, the bottom of the vertical support is provided with a support base, the support base is connected with the supporting 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 supporting frame and the supporting base, and the copper shafts are sleeved at the two ends of the H-shaped supporting frame.
The invention relates to an adjustable support bearing for a ship electric push motor rotor.
In the adjustable support bearing for the ship electric propulsion motor rotor, the support base is provided with bolt holes which are connected with the support base through fastening bolts, and the distance between the two copper rollers is adjusted according to requirements.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention relates to a method for extracting a ship electric propulsion motor rotor and an adjustable supporting bearing, wherein the rotor can be completely extracted into a motor through 2 false shafts.
2. The invention relates to a method for drawing out a ship electric push motor rotor and an adjustable support bearing.
3. The electric propulsion motor rotor extraction method and the adjustable support bearing are applied to ship construction and maintenance, and the safety and the effectiveness of operation can be ensured when the electric propulsion motor rotor extraction maintenance work is carried out in a narrow cabin.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of preparation work of S1 in the method for extracting the rotor of the electric propulsion motor of a ship.
Fig. 2 is a schematic structural diagram of an adjustable support bearing of a ship electric propulsion motor rotor.
Fig. 3 is a side view of an adjustable support bearing of a marine electric propulsion motor rotor of the invention.
Fig. 4 is a schematic diagram of a first dummy shaft for mounting the ship electric propulsion motor rotor extraction method.
Fig. 5 is a schematic diagram of the movement of the motor rotor after the first dummy shaft is installed in the method for extracting the ship electric propulsion motor rotor.
Fig. 6 is a schematic diagram of the second dummy shaft installed in S4 of the method for extracting the rotor of the ship electric propulsion motor.
Fig. 7 is a schematic diagram of the movement of the motor rotor after the second dummy shaft is installed in S4 of the method for extracting the electric propulsion motor rotor of the ship.
Fig. 8 is a schematic diagram of recalculating a new barycentric distance in step S5 of the method for extracting a rotor of an electric propulsion motor for a ship according to the present invention.
Fig. 9 is a schematic view of the inside of the shaft motor at the S6 driving end of the method for extracting the rotor of the electric propulsion motor of the ship according to the present invention.
Fig. 10 is a schematic diagram of the shaft surface and the dummy shaft at the bearing of the S6 driving end of the method for extracting the rotor of the ship electric propulsion motor according to the invention from the interior of the motor.
Fig. 11 is a schematic view showing that both ends of the drawn shaft are supported by temporary bearings after the shaft is drawn in S6 according to the method for drawing the rotor of the ship electric propulsion motor.
The reference numbers in the figures denote:
1-a first pulley, 2-a second pulley, 3-a third pulley, 4-a pulley crossbeam, 5-a temporary hoisting ring 5, 6-a first dummy shaft, 7-a second dummy shaft, 8-an adjustable supporting bearing, 81-a supporting base, 82-H type supporting frames, 83-copper shaft rollers, 84-a transverse bracket, 85-a vertical bracket and 86-a reinforcing structure
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
The invention firstly relates to a method for extracting a rotor of a ship electric propulsion motor, which comprises the following steps:
s1, preparing for work, arranging a first pulley 1, a second pulley 2 and a third pulley 3 above the center of an electric push motor rotor, wherein the first pulley 1, the second pulley 2 and the third pulley 3 are provided with corresponding hoists and binding bands, a pulley cross beam 4 is arranged above the center of the rotor, and a temporary hanging ring 5 is arranged on the pulley cross beam 4;
s2, designing a tool, namely designing an adjustable support bearing 8 for temporarily storing a motor rotor, and placing the tool below a pulley cross beam 4 at the head part of the motor;
s3, mounting a first dummy shaft 6, removing a coupling and a cover plate on a motor after preparation work is finished, mounting the first dummy shaft 7 on a rotor at the driving end of the motor, leading the first dummy shaft 7 to enter a hub of the rotor of the motor, binding and hanging the first dummy shaft 6 on a second pulley 2 at the tail part of the motor by using a second pulley 2, hanging a temporary hanging ring 5 above the rotor at the non-driving end by using the temporary hanging ring 5, binding and hanging the rotor of the motor on the temporary hanging ring 5 by using the temporary hanging ring 5, and gradually transferring the shaft weight of the rotor of the motor to the second pulley 2 at the tail part of the motor and the temporary hanging ring 5;
s4, a second dummy shaft 7 is installed, the motor rotor is pulled to move towards the front of the head by using a third pulley 3 hoist at the head, the hoists of the first pulley 1 and the second pulley 2 are protected, the motor rotor is slowly moved, the motor rotor is moved, and when a binding band of the second pulley 2 at the tail approaches to the motor, a second dummy shaft 8 is installed, the first pulley 1 suspends the second dummy shaft 7, the second pulley 2 hoist and the binding band of the first dummy shaft 6 are loosened, and the idle second pulley 2 is detached and moved to the pulley beam 4 at the head of the motor;
and S5, the motor rotor is pulled out and continuously pushed towards the head, when the cover plate of the head of the rotor is away from the forward moving motor by a certain distance, the binding bands of the second pulley 2 and the third pulley 3 are arranged at the two ends of the root of the winding of the motor rotor, hung on the second pulley 2 and the third pulley 3, and meanwhile, the binding bands on the first dummy shaft 6 are loosened, a new gravity center distance is recalculated, and the integral balance after the binding bands of the second dummy shaft 7 are loosened is ensured.
And S6, placing the extracted motor rotor on an adjustable supporting bearing 8, and after the shaft surface of the bearing at the driving end, 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 by a binding band and a hoist.
And S7, checking and cleaning, and finally, checking and cleaning the inner parts of the rotor and the stator of the electric propulsion motor.
In a first aspect of the invention, provision is made for the preparation of the main tooling required for construction. The crane comprises 3 12T traveling cranes and 12T traveling crane beams, a plurality of hoisting hoists, a plurality of hoisting straps, a plurality of relay balanced hoisting eye plates, 2 dummy shafts and 2 large adjustable temporary bearings. The lifting crane beam and the crane are mainly used for lifting the electric push motor rotor and pulling the rotor to achieve the purpose of extracting the rotor. One of the functions of the hoisting block is to cooperate with a traveling crane to hoist the rotor. In addition, a plurality of lifting eye plates with balanced relay need to be welded on two sides of the rotor in the extraction direction, the lifting eye plates are used for keeping the horizontal posture of the rotor and preventing the rotor from rotating and colliding with the stator, the rotor needs to be bound and tensioned by matching with a lifting hoist and a binding belt in the specific operation, and a specially-assigned person monitors the tightness of the hoist in real time in the extraction process. The length of the dummy shafts used in the method is 900mm for the No. 1 dummy shaft and 1600mm for the No. 2 dummy shaft respectively, the whole extraction process can be divided into 2 sections, and the two dummy shafts are required to be installed successively to extract the rotor into the motor completely. And finally, after the rotor is drawn out, the rotor needs to be supported by using an adjustable temporary bearing, the rotor is stored aside, and after the maintenance and the cleaning of the interior of the motor are finished, the rotor is hoisted and plugged back into the motor.
The invention is prepared as necessary before construction, the default ship is in a state of navigation stopping maintenance at the moment, and the electric propulsion motor is powered off. Firstly, in order to install a dummy shaft, a coupling between the electric push motor and the gear box is detached, and a 950mm safety space is ensured to flow out between an output shaft of the electric push motor and an input shaft of the gear box, so that a No. 1 dummy shaft can be installed. Second, it was confirmed that the 12T girder above the electric pusher motor could be used. Thirdly, lifting eye plates are required to be installed on two sides of the rotor in the extraction direction, and due to the arrangement difference of different types of ships, a technician is required to perform on-site positioning and ensure the installation quality. Fourthly, only a specially-assigned person is assigned to monitor the whole pumping process, warning lines are drawn around, and no other people can enter.
The tooling comprises preparation work, after a coupling is removed, parts such as cover plates, sliding units, jacking oil pump units and related pipes of a driving end and a non-driving end of a motor are removed, as shown in an initial state of a drawing-out process in figure 1, a novel adjustable support bearing 8 for temporarily storing a motor rotor is specially designed, the tooling is placed on a pulley cross beam 4 at the head of the motor, as shown in figures 2 to 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 the H-shaped support frame, the H-shaped support frame comprises a transverse support 84 and a vertical support 85, the vertical support 85 is arranged on the surface of the support base 81, the bottom of the vertical support 85 is provided with a support base, the support base is connected with the support base 81 through fastening bolts, the transverse support 84 is connected with the middle part of the vertical support 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 two ends of the H-shaped support frame 81.
Installing a first dummy shaft 6, as shown in figure 4, firstly installing a 900mm long dummy shaft on the rotor at the driving end of the motor, sleeving a rotor hub for 450mm to ensure that the dummy shaft is installed in place, hanging the dummy shaft on a tail pulley by using a binding belt, installing a 10t temporary hanging ring above the rotor at the non-driving end, gradually transferring the weight of the rotor shaft to the tail pulley and the temporary hanging ring,
the rotor is pulled by the aid of the head hoist, the pulleys are moved to the head to be matched, and the hoists on the two sides are protected. The motor rotor is moved slowly and monitored by a specially-assigned person to ensure that the rotor with the clearance of 4mm is not touched, as shown in figure 5.
A second dummy shaft is installed as shown in fig. 6-7 below. When the tail trolley binding band is moved to be close to the motor, a second dummy shaft needs to be installed. And at the moment, the hoist binding belt on the first dummy shaft is not detached, after the second dummy shaft is installed, the second dummy shaft is hung by the travelling crane, the length of the second dummy shaft is 1600mm, the hoist binding belt of the travelling crane of the first dummy shaft is loosened, and the idle travelling crane is detached and moved to the travelling crane beam at the head part of the motor.
And (3) extracting the motor rotor, recalculating the gravity center of the motor rotor, as shown in fig. 8, when the distance from the head cover plate of the rotor to the motor is about 2670mm, mounting a binding band at the root of a rotor winding, hanging the binding band on a pulley, loosening the binding band on a dummy shaft, and calculating a new gravity center distance of 4.478 meters according to the first and second dummy shaft gravity center distances, the first and second dummy shaft axle weights, the motor gravity center distance and the motor axle weight by recalculating the gravity center distance of the motor rotor, thereby ensuring the balance of the whole body after loosening the dummy shaft binding band.
As shown in fig. 9-11, after the shaft surface and the dummy shaft at the bearing of the driving end are all out of the motor, both ends are supported by the temporary bearings and fixed by the belt block, and then the inspection and cleaning work of the inside of the rotor and the stator of the electric push motor can be performed.
The above is only one implementation of the present invention, and other similar method substitutions and structure substitutions can be made based on the same idea, and are not limited to the steps and structure components already described. In summary, the scope of the present invention also includes other modifications and alternatives apparent to those skilled in the art.
Claims (9)
1. A method for extracting a rotor of an electric propulsion motor of a ship is characterized by comprising the following steps:
s1, preparing for work, arranging a first pulley (1), a second pulley (2) and a third pulley (3) above the center of an electric push motor rotor, wherein the first pulley (1), the second pulley (2) and the third pulley (3) are provided with corresponding hoists and binding bands, a pulley cross beam (4) is arranged above the center of the rotor, and a temporary hoisting eye plate (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 pulley cross beam (4) at the head part of the motor;
s3, a first dummy shaft (6) is installed, after the preparation work is finished, a coupling and a cover plate on a motor are removed, the first dummy shaft (6), a first dummy shaft sleeve (6) and a hub of the motor rotor are installed on a rotor at the driving end of the motor, the first dummy shaft (6) is hung on a second pulley (2) at the tail of the motor through a second pulley 2 binding band, at the moment, a temporary lifting eye plate (5) is arranged above the rotor at the non-driving end, the motor rotor is hung on the temporary lifting eye plate (5) through the temporary lifting eye plate (5) binding band, and the shaft weight of the motor rotor is gradually transferred to the second pulley (2) at the tail of the motor and the temporary lifting eye plate (5);
s4, a second dummy shaft (7) is installed, a third pulley (3) hoist at the head part is used for pulling the motor rotor to move towards the front of the head part, the hoists of the first pulley (1) and the second pulley (2) are used for protection, the motor rotor is slowly moved, the motor rotor is moved, and when a bandage of the second pulley (2) at the tail part approaches to the motor, a second dummy shaft (7) is installed, the first pulley (1) hangs the second dummy shaft (7), the hoist and the bandage of the second pulley (2) of the first dummy shaft (6) are loosened, and the idle second pulley (2) is detached and moved onto a pulley cross beam (4) at the head part of the motor;
s5, the motor rotor is pulled out and continuously pushed towards the head, when a cover plate of the head of the rotor is away from the forward moving motor by a certain distance, the binding bands of the second pulley (2) and the third pulley (3) are arranged at the two ends of the root of the winding of the motor rotor, the binding bands of the second pulley (2) and the third pulley (3) are hung on the second pulley (2) and the third pulley (3), the binding bands on the first dummy shaft (6) are loosened, a new gravity center distance is recalculated, and the integral balance after the binding bands of the second dummy shaft (7) are loosened is ensured;
s6, placing the extracted motor rotor on an adjustable supporting bearing (8), and after the shaft surface of the bearing at the driving end, the first dummy shaft (6) and the second dummy shaft (7) all come out of the motor, supporting two ends of the motor rotor by the adjustable supporting bearing (8) and fixing the motor rotor by a binding band and a hoist;
and S7, checking and cleaning, and finally, checking and cleaning the inner parts of the rotor and the stator of the electric propulsion motor.
2. The method for extracting a rotor of an electric propulsion motor for a marine vessel as claimed in claim 1, wherein the first block (1), the second block (2), and the third block (3) have a ton of 12T and the temporary hoist ring (5) has a ton of 10T in S1.
3. The method for extracting a rotor of a marine electric propulsion motor according to claim 1, wherein in S3 the first dummy shaft (6) has a length of 900mm and is inserted into the rotor hub by a distance of 450 mm.
4. Method for extracting a rotor of an electric propulsion motor for ships according to claim 1, characterised in that in S4 the second dummy shaft (7) has a length of 1600mm.
5. The method for extracting a rotor of a marine electric propulsion motor according to claim 1, wherein the rotor head cover plate is positioned 2650 to 2680mm from the advanced motor in S5.
6. The method for extracting a rotor of a marine electric propulsion motor according to claim 1, wherein in S5, a new center of gravity distance of 4.478 m is calculated.
7. The utility model provides an adjustable support bearing that boats and ships electric propulsion motor rotor was used, its characterized in that, this adjustable support bearing (8) contain support base (81), H type support frame (82) and copper axle gyro wheel (83), the left and right both ends of supporting base (81) are equipped with H type support frame (82) respectively, H type support frame (82) contain lateral frame (84) and erect support (85), erect support (85) and set up on supporting base (81) surface, erect support (85) bottom and be equipped with the support frame seat, the support frame seat is connected by fastening bolt with support base (81), the middle part of erecting support (85) is connected in lateral frame (84), be equipped with additional strengthening (86) between H type support frame (82) and support base (81), copper axle gyro wheel (83) are at H type support frame (82) both ends.
8. Adjustable support bearing for a rotor of a marine electric propulsion motor according to claim 7, characterised in that the transverse bracket (84) and the vertical bracket (85) are connected by welding.
9. The adjustable support bearing for the ship electric propulsion motor rotor according to claim 7, characterized in that the support base (81) is provided with bolt holes to be connected with the bracket base through fastening bolts, and the distance between the copper shaft rollers (83) is adjusted according to requirements.
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 true CN115416825A (en) | 2022-12-02 |
| CN115416825B 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 (12)
| 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 |
| US20200079479A1 (en) * | 2018-08-24 | 2020-03-12 | Steven John Derrah | Retractable Power Drive Surfboard for Wave Foils |
| 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 |
-
2022
- 2022-08-11 CN CN202210960033.5A patent/CN115416825B/en active Active
Patent Citations (12)
| 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 |
| US20200079479A1 (en) * | 2018-08-24 | 2020-03-12 | Steven John Derrah | Retractable Power Drive Surfboard for Wave Foils |
| 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 |
|---|---|
| CN115416825B (en) | 2024-06-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102030076B (en) | 50,000-ton semi-submersible ship master diesel generator set entry process | |
| CN102267664B (en) | Method for installing bridge crane using load-supporting roof beam for hoisting and usage thereof | |
| CN206129300U (en) | Shield constructs to start uses section of jurisdiction conveyer | |
| CN102275071A (en) | Multifunctional platform of wind turbine and vane dismantling method | |
| CN102674131A (en) | Removal apparatus for torque converter and starting motor from auxillary compartment of gas turbine | |
| CN101880006B (en) | Roll-on device and method for large fixed type rotary crane | |
| CN202131023U (en) | Two-beam bridge crane | |
| CN103979438B (en) | A kind of auxiliary device for removing tower crane attachment frame | |
| CN210885185U (en) | Maintenance platform for container crane | |
| CN110216434A (en) | It is a kind of for replacing the guiding trolley device and method of the safe spool shaft of large scale ship | |
| CN115416825A (en) | Ship electric propulsion motor rotor extraction method and adjustable support bearing | |
| CN217947452U (en) | Shaft construction lifting device | |
| CN113336136A (en) | Dismounting and carrying device for lifting hook protector of hydropower station bridge crane and operation method of dismounting and carrying device | |
| CN102311057A (en) | Floating crane revolving support dismounting method | |
| CN210419067U (en) | Movable plate lifting device for ship box body repair | |
| CN209873593U (en) | Bridge erecting machine | |
| CN201165449Y (en) | Double lifting motor safe crab | |
| CN208120661U (en) | A kind of movable type aircraft cabin equipment transferring platform | |
| JP3053547B2 (en) | How to install heavy objects in the PCV | |
| CN217627187U (en) | Hoisting equipment for ship repair | |
| CN215626628U (en) | Trolley for removing horizontal support of foundation pit | |
| CN113186911B (en) | Pile hanging device | |
| CN212687435U (en) | Communication base station equipment sling cart | |
| CN115973337A (en) | Marine lashing device and method for complete machine transportation of large gantry crane | |
| CN218022085U (en) | Auxiliary device is receive and release to geophysical prospecting node for small-size ship |
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 |