CN113620154B - Screw propeller auxiliary turning device, mounting method and dismounting method - Google Patents
Screw propeller auxiliary turning device, mounting method and dismounting method Download PDFInfo
- Publication number
- CN113620154B CN113620154B CN202110976275.9A CN202110976275A CN113620154B CN 113620154 B CN113620154 B CN 113620154B CN 202110976275 A CN202110976275 A CN 202110976275A CN 113620154 B CN113620154 B CN 113620154B
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- CN
- China
- Prior art keywords
- propeller
- main body
- body frame
- hub
- frame
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
Abstract
The invention provides a propeller turning assisting device, which comprises a main body frame, wherein a first supporting frame and a second supporting frame are vertically arranged on the main body frame, and the first supporting frame and the second supporting frame are matched with each other to support the main body frame, so that the main body frame is horizontally placed; the main body frame is provided with a connecting frame, and the connecting frame is provided with a flange plate connected with a propeller hub of the propeller; the main body frame is provided with a first hanging bracket, and the second supporting frame is provided with a second hanging bracket; the first hanging bracket and the second hanging bracket are matched to turn over the main body frame, so that the hub on the main body frame is turned over from a horizontal state to a horizontal state or from the horizontal state to a vertical state; because the main body frame is connected with the hub of the propeller through the flange plate, the stability of the connection of the main body frame and the propeller is ensured while the damage to the propeller is prevented, and the propeller is prevented from falling in the processes of lifting and turning over.
Description
Technical Field
The invention belongs to the technical field of propeller disassembly and assembly, and particularly relates to a propeller auxiliary turning device, an installation method and a disassembly method.
Background
The propeller consists of a propeller hub and a plurality of blades radially fixed on the propeller hub, and in the manufacturing and transportation processes, in order to protect the blades, the propeller needs to be horizontally placed (namely, the propeller hub of the propeller is vertically placed, so that the center line of the propeller hub is in a vertical state), but in the installation process, the propeller needs to be turned over from the horizontal state to the vertical state (namely, the propeller hub is turned over from the vertical state to the horizontal state) so as to be aligned with the tail shaft. At present, the hoisting mode of screw mainly is: the nylon rope is directly tied at the root of the propeller blade, the propeller blade is lifted by using lifting equipment, and then the propeller is turned over and the gesture is controlled by pulling of a worker through a manual hoist or a pneumatic hoist, so that the construction difficulty is high, and the propeller blade can be damaged due to improper operation; in addition, the screw is in the sky because connect between nylon rope and the paddle unstable, and the nylon rope slippage easily leads to the screw high altitude to fall, has great potential safety hazard.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present invention aims to provide a propeller turning assisting device, which can be used for assisting the installation and the disassembly of a propeller, and ensures the lifting safety and the turning stability of the propeller.
In order to achieve the above and other related objects, the present invention provides a propeller turning assisting device, comprising a main body frame, wherein a first support frame and a second support frame are vertically arranged on the main body frame, and the first support frame and the second support frame are matched to support the main body frame, so that the main body frame is horizontally placed; the main body frame is provided with a connecting frame, and the connecting frame is provided with a flange plate connected with a propeller hub of the propeller; the main body frame is provided with a first hanging bracket, and the second supporting frame is provided with a second hanging bracket; the first hanging bracket and the second hanging bracket are matched to turn over the main body frame, so that the hub on the main body frame is turned over from a horizontal state to a horizontal state or from the horizontal state to a vertical state; because the main body frame is connected with the hub of the propeller through the flange plate, the stability of the connection of the main body frame and the propeller is ensured while the damage to the propeller blade is avoided, and the propeller is prevented from falling in the processes of lifting and turning over.
Preferably, the main body frame is provided with a third hanging bracket, and the first hanging bracket and the third hanging bracket are matched to hang the main body frame in a horizontal state, so that the main body frame is horizontally placed on the hub of the propeller, and the labor intensity is reduced.
Preferably, the first support comprises a first leg; the second support frame includes a second leg.
Preferably, the first support frame comprises a first support beam vertically arranged at the end part of the first support leg, so that the support area of the main body frame and the ground is increased, and the support stability is ensured.
Preferably, the second supporting frame comprises a second supporting beam arranged on a second supporting leg, and a diagonal bracing for supporting the second supporting beam is arranged on the main body frame; the second hangs the sign indicating number setting on a second supporting beam to strengthen the intensity of second supporting beam, avoid the second support frame to hang a sign indicating number atress deformation because of the second, influence supporting stability.
Preferably, the connecting frame comprises four connecting beams uniformly distributed along the periphery of the flange plate so as to ensure the stability of the flange plate.
Preferably, a reinforcing plate is arranged between two adjacent connecting beams, and each reinforcing plate is enclosed to form a mounting frame for mounting the laser positioning mechanism, so that the laser positioning mechanism is convenient to mount to assist in alignment while the strength of the connecting frame is increased.
The invention also provides a method for installing the propeller, which adopts the propeller auxiliary turning device to install the propeller, and the method for installing the propeller comprises the following steps:
the propeller turning assisting device is horizontally arranged on the small end face of the propeller hub, so that the flange plate is aligned with the small end face of the propeller hub and is connected together through bolts;
the first hanging bracket and the second hanging bracket are connected with a hand hoist, and the first hanging bracket and the second hanging bracket are hung by adjusting the length of a steel wire rope of the hand hoist so as to turn over the main body frame; in the process, the first support frame is always in contact with the ground;
hanging the whole body frame after body turning off from the ground, and then adjusting the height position of the second hanging bracket until the hub on the body frame is in a horizontal state;
moving the main body frame to the tail shaft of the ship body so as to align the center line of the hub with the center line of the tail shaft; and then the propeller hub moves towards the direction close to the tail shaft until the propeller hub is sleeved with the tail shaft, and the propeller hub and the tail shaft of the propeller are fixed together to complete the installation of the propeller.
The invention also provides a method for disassembling the propeller, which adopts the propeller auxiliary turning device to disassemble the propeller, and comprises the following steps:
lifting the main body frame in a vertical state to a tail shaft of the ship body, so that the central line of the flange plate is aligned with the central line of the hub; continuously moving the main body frame to a direction close to the tail shaft until the flange plate is contacted with the hub, and then fixing the flange plate and the hub together;
loosening the propeller to enable the hub and the tail shaft of the propeller to be in a fixing and releasing state;
moving the main body frame in a direction away from the tail shaft until the hub is completely separated from the tail shaft; in the process, the center line of the hub is always aligned with the tail shaft;
lifting the main body frame to a preset position, and lowering the main body frame to enable the first support frame to be in contact with the ground;
the lengths of the steel wire ropes on the first hanging bracket and the second hanging bracket are adjusted to enable the main body frame to turn over until the second supporting frame contacts with the ground; in the process, the first support frame is always in contact with the ground;
and separating the flange plate from the propeller hub to complete the disassembly of the propeller.
As described above, the propeller turning-over assisting device, the mounting method, and the dismounting method of the present invention. The method has the following beneficial effects:
(1) The flange plate on the propeller auxiliary turning device is used for connecting the hub of the propeller, and then the hanging yards on the propeller auxiliary turning device are matched with the hanging and turning propellers, so that the damage of the blades is avoided, the difficulty of turning and hanging is reduced, and the stability of the hanging and turning of the propellers is improved;
(2) The propeller auxiliary turning device advances the field turning of the propeller to the internal field turning, reduces the occupied time of the field, and improves the field construction efficiency of the ship.
Drawings
Fig. 1 is a perspective view of a first view of a propeller assisted turn-over device according to the present invention.
Fig. 2 is a perspective view of a second view of the propeller assisted turn-over device of the present invention.
Fig. 3 is a plan view of the propeller-assisted turning device horizontally placed on the propeller.
Fig. 4 is a schematic view of the turning-over assisting device of the propeller in turning over to a vertical state.
Description of the reference numerals
Screw 01, crane lifting hook 02, main body frame 1, first support frame 2, first stabilizer blade 21, first supporting beam 22, second support frame 3, second stabilizer blade 31, second supporting beam 32, link 4, tie beam 41, ring flange 5, installing frame 6, reinforcing plate 61, bracing 7, first hanging yard 81, second hanging yard 82, third hanging yard 83.
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.
Please refer to fig. 1 to 4. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the invention, are not intended to be critical to the essential characteristics of the invention, but are intended to fall within the spirit and scope of the invention. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.
As shown in fig. 1 to 4, the present invention provides a propeller turning assisting apparatus, comprising a main body frame 1, wherein the main body frame 1 is a rectangular frame; the main body frame 1 is vertically provided with a first support frame 2 and a second support frame 3, the first support frame 2 and the second support frame 3 are arranged at intervals along the length direction of the main body frame 1, and a space for accommodating a propeller 01 is arranged between the first support frame 2 and the second support frame 3; the first support frame 2 and the second support frame 3 are matched with the main body frame 1 to support the main body frame 1 horizontally; the main body frame 1 is provided with a connecting frame 4, and the connecting frame 4 is provided with a flange 5 connected with a propeller hub of the propeller 01; the main body frame 1 is provided with a first hanging bracket 81, and the second supporting frame 3 is provided with a second hanging bracket 82; the first hanging bracket 81 and the second hanging bracket 82 are matched to turn over the main body frame 1, so that the hub on the main body frame 1 is turned over from a vertical state to a horizontal state or from the horizontal state to the vertical state.
It can be understood that the vertical state of the hub is that the central line of the hub is vertical; the horizontal state of the hub is that the central line of the hub is horizontal.
It can be understood that the flange plate 5 is provided with bolt holes with various specifications so as to be connected with hubs of different propellers, so that the auxiliary turning device of the propellers has universality.
It can be understood that, in order to ensure the turning stability of the main body frame 1, the first support frame 2 is disposed at an end portion of any one end of the main body frame 1 in the length direction, so that the first support frame 2 is always ensured to be supported on the ground when the main body frame 1 turns over.
As shown in fig. 1, a third hanging bracket 83 is provided on the main body frame 1, and the first hanging bracket 81 and the third hanging bracket 83 are cooperated to hang the main body frame 1 in a horizontal state.
As shown in fig. 2, the first support frame 2 includes a first leg 21; the second support frame 3 comprises a second leg 31.
It will be appreciated that the first leg 21 and the second leg 31 are each provided as at least one, which is not limited thereto, as long as stable support can be ensured, and the present embodiment preferably provides the first leg 21 and the second leg 31 as two, and four legs are provided at four corner positions of the main body frame 1, respectively.
As shown in fig. 2, in order to further improve the support stability, the end of the first leg 21 is vertically provided with a first support beam 22, and the end of the second leg 31 is vertically provided with a second support beam 32; the second hanging bracket 82 is arranged on the second supporting beam 32; the main body frame 1 is provided with a diagonal brace 7 for supporting the second support beam 32, so as to avoid the second bracket 3 from being deformed under force.
As shown in fig. 2, the connecting frame 4 includes four connecting beams 41 uniformly distributed along the circumferential direction of the outer periphery of the flange 5, so that the connecting frame 4 forms a crisscross frame.
Further, as shown in fig. 2, a reinforcing plate 61 is provided between two adjacent connecting beams 41, and each reinforcing plate 61 is enclosed to form a mounting frame 6 for mounting the laser positioning mechanism.
The invention also provides a method for installing the propeller, which adopts the propeller auxiliary turning device to install the propeller, and the method for installing the propeller comprises the following steps:
first, internal field turning-over
As shown in fig. 3, the propeller turning assisting device is horizontally arranged on the small end face of the propeller hub, so that the flange plate 5 is aligned with the small end face of the propeller hub and is connected together through bolts;
in general, the propeller 01 is placed in a wooden frame for transportation to protect the blades, and when the wooden frame reaches a preset position, the first hanging bracket 81 and the third hanging bracket 83 can be connected to the crane hook 02 through a chain block, so that the propeller auxiliary turning device is horizontally placed on the small end face of the propeller hub; aligning the flange plate 5 with the small end face of the hub and connecting the flange plate and the small end face of the hub together through bolts; the propeller 01 is then removed from the wooden frame and placed horizontally on the ground.
The connection between the third hanging bracket 83 and the crane lifting hook 02 is released, the crane lifting hook 02 is connected with the second hanging bracket 82 through a chain block, and the first hanging bracket 81 and the second hanging bracket 82 are hung by adjusting the length of a steel wire rope of the chain block, so that the main body frame 1 turns over; in the process, the first support frame 2 is always in contact with the ground;
as shown in fig. 4, the body frame 1 after turning over is lifted off the ground integrally, and then the height position of the second lifting frame 82 is adjusted until the hub on the body frame 1 is in a horizontal state;
(II) field installation
Moving the main body frame 1 to the tail shaft of the ship body so as to align the center line of the hub with the center line of the tail shaft; then, the propeller hub moves towards the direction close to the tail shaft until the propeller hub is sleeved with the tail shaft, and the propeller hub of the propeller 01 and the tail shaft are fixed together; and then the connection between the propeller 01 and the flange plate 5 is released, and the installation of the propeller 01 is completed.
The invention also provides a method for disassembling the propeller, which adopts the propeller auxiliary turning device to disassemble the propeller, and comprises the following steps:
the first hanging bracket 81 and the second hanging bracket 82 are hung by a traveling crane, so that the main body frame 1 in a vertical state is lifted to the tail shaft of the ship body, and the center line of the flange plate is aligned with the center line of the hub; continuing to move the main body frame 1 towards the direction close to the tail shaft until the flange plate 5 is in contact with the hub, and then fixing the flange plate 5 and the hub together;
loosening the propeller 01 to enable the hub of the propeller 01 and the tail shaft to be in a fixing releasing state;
moving the main body frame 1 in a direction away from the tail shaft until the hub is completely separated from the tail shaft; in the process, the center line of the hub is always aligned with the tail shaft;
lifting the main body frame 1 to a preset position, and lowering the main body frame 1 to enable the first support frame 2 to be in contact with the ground;
the lengths of the steel wire ropes on the first hanging bracket 81 and the second hanging bracket 82 are adjusted to turn over the main body frame 1 until the second supporting frame 3 contacts with the ground; in the process, the first support frame 2 is always in contact with the ground;
and the flange plate 5 and the propeller hub are separated, the connection between the crane lifting hook 02 and the second lifting code 82 is released, the crane lifting hook 02 and the third lifting code 83 are connected, the propeller auxiliary turning device is lifted away from the propeller 01 through the cooperation of the first lifting code 81 and the third lifting code 83, and the disassembly of the propeller 01 is completed.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (7)
1. The utility model provides a screw auxiliary turning device which is characterized in that the device comprises a main body frame (1), a first support frame (2) and a second support frame (3) are vertically arranged on the main body frame (1), and the first support frame (2) and the second support frame (3) are matched with each other to support the main body frame (1) so that the main body frame (1) is horizontally placed; a connecting frame (4) is arranged on the main body frame (1), and a flange plate (5) connected with a propeller hub of the propeller (01) is arranged on the connecting frame (4); a first hanging bracket (81) is arranged on the main body frame (1), and a second hanging bracket (82) is arranged on the second supporting frame (3); the first hanging bracket (81) is matched with the second hanging bracket (82) to turn over the main body frame (1), so that a paddle hub on the main body frame (1) is turned over from a vertical state to a horizontal state or from the horizontal state to the vertical state; the first support frame (2) comprises a first leg (21); the second support frame (3) comprises a second leg (31); the connecting frame (4) comprises four connecting beams (41) which are uniformly distributed along the circumferential direction of the periphery of the flange plate (5).
2. The propeller turning-over assisting device according to claim 1, wherein a third hanging bracket (83) is arranged on the main body frame (1), and the first hanging bracket (81) and the third hanging bracket (83) are matched to hoist the main body frame (1) in a horizontal state.
3. A propeller turn-over assisting device in accordance with claim 1 or 2, characterized in that the first support frame (2) comprises a first support beam (22) arranged vertically at the end of the first leg (21).
4. A propeller turn-over assisting device as claimed in claim 1 or 2, characterized in that the second support frame (3) comprises a second support beam (32) provided on a second leg (31), and that the main body frame (1) is provided with a diagonal brace (7) for supporting the second support beam (32); the second hanging bracket (82) is arranged on the second supporting beam (32).
5. A propeller turning-over assisting device according to claim 1, characterized in that a reinforcing plate (61) is provided between two adjacent connecting beams (41), each reinforcing plate (61) being enclosed to form a mounting frame (6) for mounting the laser positioning mechanism.
6. A method of installing a propeller, wherein the propeller is installed using the propeller-assisted turn-over device according to any one of claims 1 to 5, the method comprising the steps of:
the propeller turning assisting device is horizontally arranged on the small end face of the propeller hub, so that the flange plate (5) is aligned with the small end face of the propeller hub and is connected together through bolts;
the first hanging bracket (81) and the second hanging bracket (82) are connected with a chain block, and the first hanging bracket (81) and the second hanging bracket (82) are hung by adjusting the length of a steel wire rope of the chain block, so that the main body frame (1) turns over; in the process, the first support frame (2) is always in contact with the ground;
lifting the whole body frame (1) after body turning off from the ground, and then adjusting the height position of the second lifting code (82) until a hub on the body frame (1) is in a horizontal state;
moving the main body frame (1) to the tail shaft of the ship body so as to align the center line of the hub with the center line of the tail shaft; and then the propeller hub moves towards the direction close to the tail shaft until the propeller hub is sleeved with the tail shaft, and the propeller hub of the propeller (01) and the tail shaft are fixed together to finish the installation of the propeller (01).
7. A method of removing a propeller, characterized in that the propeller is removed by using the propeller-assisted turn-over device according to any one of claims 1 to 5, the method comprising the steps of:
lifting the main body frame (1) in a vertical state to a tail shaft of a ship body so as to align the central line of the flange plate with the central line of the hub; continuously moving the main body frame (1) to a direction close to the tail shaft until the flange plate (5) is in contact with the hub, and then fixing the flange plate (5) and the hub together;
loosening the propeller (01) to enable a hub of the propeller (01) and the tail shaft to be in a fixed releasing state;
moving the main body frame (1) in a direction away from the tail shaft until the hub is completely separated from the tail shaft; in the process, the center line of the hub is always aligned with the tail shaft;
lifting the main body frame (1) to a preset position, and lowering the main body frame (1) to enable the first support frame (2) to be in contact with the ground; the lengths of the steel wire ropes on the first hanging bracket (81) and the second hanging bracket (82) are adjusted to enable the main body frame (1) to turn over until the second supporting frame (3) contacts with the ground; in the process, the first support frame (2) is always in contact with the ground;
and separating the flange plate (5) from the propeller hub to complete the disassembly of the propeller (01).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110976275.9A CN113620154B (en) | 2021-08-24 | 2021-08-24 | Screw propeller auxiliary turning device, mounting method and dismounting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110976275.9A CN113620154B (en) | 2021-08-24 | 2021-08-24 | Screw propeller auxiliary turning device, mounting method and dismounting method |
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| Publication Number | Publication Date |
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| CN113620154A CN113620154A (en) | 2021-11-09 |
| CN113620154B true CN113620154B (en) | 2023-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110976275.9A Active CN113620154B (en) | 2021-08-24 | 2021-08-24 | Screw propeller auxiliary turning device, mounting method and dismounting method |
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| CN114537592A (en) * | 2022-02-28 | 2022-05-27 | 江南造船(集团)有限责任公司 | Marine liquid collecting disc auxiliary device |
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| CN112265616A (en) * | 2020-09-27 | 2021-01-26 | 广州文冲船舶修造有限公司 | Propeller disassembling method, propeller installing method and propeller disassembling tool |
| CN113059524A (en) * | 2021-03-30 | 2021-07-02 | 江南造船(集团)有限责任公司 | Auxiliary propeller dismounting tool, dismounting method and mounting method |
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| CN101254884A (en) * | 2008-03-12 | 2008-09-03 | 渤海船舶重工有限责任公司 | Screw-propeller turning-over device |
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| CN113620154A (en) | 2021-11-09 |
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