CN113620154A - Propeller auxiliary turning-over device, mounting method and dismounting method - Google Patents
Propeller auxiliary turning-over device, mounting method and dismounting method Download PDFInfo
- Publication number
- CN113620154A CN113620154A CN202110976275.9A CN202110976275A CN113620154A CN 113620154 A CN113620154 A CN 113620154A CN 202110976275 A CN202110976275 A CN 202110976275A CN 113620154 A CN113620154 A CN 113620154A
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- propeller
- main body
- body frame
- hub
- frame
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention provides a propeller auxiliary turning-over device which comprises a main body frame, wherein a first support frame and a second support frame are vertically arranged on the main body frame, and are matched with and 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 weight, and the second support frame is provided with a second hanging weight; the first hoisting codes and the second hoisting codes are matched to turn over the main body frame, so that a 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 framework is connected with the propeller hub of the propeller through the flange plate, the propeller blade is prevented from being damaged, meanwhile, the connection stability of the propeller blade and the propeller hub is ensured, and the propeller is prevented from falling in the lifting and turning-over processes.
Description
Technical Field
The invention belongs to the technical field of propeller dismounting and particularly relates to a propeller auxiliary turning-over device, an installation method and a dismounting method.
Background
The propeller consists of a hub and a plurality of blades radially fixed on the hub, and in the manufacturing and transporting processes, in order to protect the blades, the propeller needs to be horizontally arranged (namely, the hub of the propeller is vertically arranged, and the central line of the hub is in a vertical state), but when the propeller is installed, the propeller needs to be firstly turned from a horizontal state to a vertical state (namely, the hub is turned from the vertical state to the horizontal state) so as to be installed in alignment with a tail shaft. At present, the hoisting mode of the propeller is mainly as follows: the nylon rope is directly tied to the root of the propeller blade of the propeller, the propeller blade is hoisted by using hoisting equipment, and then the propeller blade is turned over and the posture of the propeller blade is controlled by pulling the propeller blade by using a manual hoist or a pneumatic hoist, so that the construction difficulty is high, and the propeller blade of the propeller blade can be damaged due to improper operation; in addition, the propeller is connected unstably between nylon rope and the paddle in the time of aloft, and the nylon rope slips easily, leads to the propeller high altitude to fall, has great potential safety hazard.
Disclosure of Invention
In view of the above-mentioned shortcomings 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 ensuring the hoisting safety and the turning stability of the propeller.
In order to achieve the above and other related objects, the present invention provides a propeller turn-over assisting device, which comprises 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 weight, and the second support frame is provided with a second hanging weight; the first hoisting codes and the second hoisting codes are matched to turn over the main body frame, so that a 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 propeller hub of the propeller through the flange plate, the propeller blade is prevented from being damaged, meanwhile, the connection stability of the propeller blade and the propeller hub is ensured, and the propeller is prevented from falling in the lifting and turning-over processes.
Preferably, the main body frame is provided with a third hoisting weight, and the first hoisting weight and the third hoisting weight are matched to hoist the main body frame in a horizontal state, so that the main body frame is horizontally placed on a propeller hub of the propeller, and the labor intensity is reduced.
Preferably, the first support bracket comprises a first leg; the second support bracket comprises a second support leg.
Preferably, the first support frame comprises a first support beam vertically arranged at the end of the first support leg, so as to increase the support area of the main body frame and the ground and ensure the support stability.
Preferably, the second support frame comprises a second support beam arranged on the second support leg, and the main body frame is provided with an inclined strut for supporting the second support beam; the second hangs the sign indicating number setting on the second supporting beam to the intensity of reinforcing second supporting beam avoids the second support frame to warp because of the second hangs the sign indicating number atress, influences support stability.
Preferably, the link includes four tie-beams along ring flange periphery circumference evenly distributed to guarantee the stability of ring flange.
Preferably, the reinforcing plates are arranged between two adjacent connecting beams, each reinforcing plate surrounds to form a mounting frame for mounting the laser positioning mechanism, and 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 propeller installation method, which adopts the propeller auxiliary turning-over device to install a propeller, and the propeller installation method comprises the following steps:
horizontally placing the propeller auxiliary turning-over device on the small end face of the propeller hub to align the flange plate with the small end face of the propeller hub, and connecting the flange plate and the small end face of the propeller hub together through bolts;
connecting a chain block on the first hoisting yard and the second hoisting yard, and hoisting the first hoisting yard and the second hoisting yard by adjusting the length of a steel wire rope of the chain block to turn over the main body frame; in the process, the first support frame is always in contact with the ground;
lifting the turned main body frame off the ground integrally, and then adjusting the height position of the second lifting weight until the hub on the main body frame is in a horizontal state;
moving the main body frame to the tail shaft of the ship body to align the central line of the propeller hub with the central line of the tail shaft; and then moving the hub to the direction close to the tail shaft until the hub is sleeved with the tail shaft, and fixing the hub and the tail shaft of the propeller together to finish the installation of the propeller.
The invention also provides a propeller dismounting method, which adopts the propeller turning assisting device as claimed in the above claim to dismount the propeller, and the propeller dismounting method comprises the following steps:
hoisting the main body frame in a vertical state to the tail shaft of the ship body, and aligning the central line of the flange plate with the central line of the propeller hub; continuing to move the main body frame towards the direction close to the tail shaft until the flange plate is contacted with the propeller hub, and then fixing the flange plate and the propeller hub together;
loosening the propeller to enable a propeller hub and a tail shaft of the propeller to be in a fixed release 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 central line of the hub is always aligned with the tail shaft;
hoisting 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;
adjusting the lengths of the steel wire ropes on the first hanging weight and the second hanging weight to turn over the main body framework until the second support frame is contacted 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 finish the disassembly of the propeller.
As described above, the propeller turn-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-over device is connected with the propeller hub of the propeller, and then the propellers are hoisted and turned over by matching with hoisting codes on the propeller auxiliary turning-over device, so that the damage of the blades is avoided, the turning-over and hoisting difficulty is reduced, and the hoisting and turning-over stability of the propeller is improved;
(2) the propeller turning assisting device advances the on-site turning of the propeller to the interior turning, reduces the occupied time of the on-site field, and improves the on-site construction efficiency of the ship.
Drawings
Fig. 1 is a perspective view of a first viewing angle of the propeller turn-over assisting device in the invention.
Fig. 2 is a perspective view of a second viewing angle of the propeller turn-over assisting device in accordance with the present invention.
Fig. 3 is a top view of the propeller turn-over assisting device horizontally placed on the propeller.
Fig. 4 is a schematic diagram of the propeller turn-over assisting device turning over to a vertical state.
Description of the reference numerals
Screw 01, driving 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 crane yard 81, second crane yard 82, third crane yard 83.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1 to 4. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
As shown in fig. 1 to 4, the invention provides a propeller turn-over assisting device, which comprises a main body frame 1, wherein the main body frame 1 is a rectangular frame; a first support frame 2 and a second support frame 3 are vertically arranged on the main body frame 1, 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 the propeller 01 is formed 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 each other to support the main body frame 1, so that the main body frame 1 is horizontally placed; the main body frame 1 is provided with a connecting frame 4, and the connecting frame 4 is provided with a flange plate 5 connected with a propeller hub of the propeller 01; a first hanging weight 81 is arranged on the main body frame 1, and a second hanging weight 82 is arranged on the second support frame 3; the first crane 81 and the second crane 82 cooperate to turn over the main body frame 1, so that the hub on the main body frame 1 is turned over from the vertical state to the horizontal state or from the horizontal state to the vertical state.
It will be appreciated that the hub is vertical, i.e. the hub centre line is vertical; the horizontal state of the hub is that the central line of the hub is in the horizontal state.
It can be understood that the flange 5 is provided with bolt holes with various specifications to be connected with the hubs of different propellers, so that the propeller turning assisting device 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 arranged at the end of any end of the main body frame 1 in the length direction, so that when the main body frame 1 is turned, the first support frame 2 is always ensured to be supported on the ground.
As shown in fig. 1, the main body frame 1 is provided with a third hanger 83, and the first hanger 81 and the third hanger 83 cooperate to hoist 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 3 comprises a second leg 31.
It is understood that the first support leg 21 and the second support leg 31 are at least one, but not limited thereto, as long as stable support can be ensured, and the embodiment preferably provides two first support legs 21 and two second support legs 31, and four support legs are respectively provided at four corner positions of the main body frame 1.
As shown in fig. 2, in order to further improve the support stability, a first support beam 21 is vertically disposed at an end of the first leg 21, and a second support beam 32 is vertically disposed at an end of the second leg 31; the second hanger 82 is provided on the second support 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 deforming under stress.
As shown in fig. 2, the connecting frame 4 includes four connecting beams 41 uniformly distributed along the circumference of the flange 5, so that the connecting frame 4 forms a cross frame.
Further, as shown in fig. 2, a reinforcing plate 61 is disposed between two adjacent connecting beams 41, and each reinforcing plate 61 encloses to form a mounting frame 6 for mounting the laser positioning mechanism.
The invention also provides a propeller installation method, which adopts the propeller auxiliary turning-over device to install a propeller, and the propeller installation method comprises the following steps:
turning over in the field
As shown in fig. 3, the propeller turn-over assisting device is horizontally placed on the small end face of the hub, so that the flange 5 is aligned with the small end face of the hub and is connected together through bolts;
usually, the propeller 01 is placed in a wooden frame for transportation to protect blades, when the wooden frame reaches a preset position, a first hoisting code 81 and a third hoisting code 83 can be connected to a crane hoisting hook 02 through a chain block, so that the propeller auxiliary turning device is horizontally placed on the small end face of a propeller hub; aligning the flange plate 5 with the small end face of the hub and connecting the flange plate and 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 hoisting code 83 and the crane hoisting hook 02 is released, the crane hoisting hook 02 is connected with the second hoisting code 82 through a chain block, and the first hoisting code 81 and the second hoisting code 82 are hoisted by adjusting the length of a steel wire rope of the chain block, so that the main body frame 1 is turned over; in the process, the first support frame 2 is always in contact with the ground;
as shown in fig. 4, the turned-over main body frame 1 is lifted off the ground as a whole, and then the height position of the second hanger 82 is adjusted until the hub on the main 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 to align the central line of the propeller hub and the central line of the tail shaft; then the hub is moved towards the direction close to the tail shaft until the hub is sleeved with the tail shaft, and the hub of the propeller 01 is fixed with the tail shaft; and then the connection between the propeller 01 and the flange 5 is released, and the installation of the propeller 01 is completed.
The invention also provides a propeller dismounting method, which adopts the propeller auxiliary turning-over device to dismount the propeller, and the propeller dismounting method comprises the following steps:
hooking the first hoisting weight 81 and the second hoisting weight 82 by using a travelling crane to hoist the main body frame 1 in a vertical state to the tail shaft of the ship body, so that the central line of the flange plate is aligned with the central 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 contacted with the propeller hub, and then fixing the flange plate 5 and the propeller hub together;
loosening the propeller 01 to enable a propeller hub and a tail shaft of the propeller 01 to be in a fixed release state;
moving the main body frame 1 to the direction far away from the tail shaft until the hub is completely separated from the tail shaft; in the process, the central 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;
adjusting the lengths of the steel wire ropes on the first hanging weight 81 and the second hanging weight 82 to turn over the main body frame 1 until the second support frame 3 is contacted with the ground; in the process, the first support frame 2 is always contacted with the ground;
separating the flange plate 5 from the propeller hub, releasing the connection between the crane hook 02 and the second lifting weight 82, connecting the crane hook 02 with the third lifting weight 83, and lifting the propeller auxiliary turning device away from the propeller 01 through the matching of the first lifting weight 81 and the third lifting weight 83 to finish the disassembly of the propeller 01.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (9)
1. The propeller auxiliary turning-over device is characterized by comprising a main body frame (1), wherein 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; the main body frame (1) is provided with a connecting frame (4), and the connecting frame (4) is provided with a flange plate (5) connected with a propeller hub of the propeller (01); a first hanging weight (81) is arranged on the main body frame (1), and a second hanging weight (82) is arranged on the second support frame (3); the first hanging yard (81) and the second hanging yard (82) are matched to turn over the main body frame (1), so that a 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.
2. The propeller auxiliary turning-over device of claim 1, wherein a third hanging weight (83) is arranged on the main body frame (1), and the first hanging weight (81) and the third hanging weight (83) are matched with each other to hoist the main body frame (1) in a horizontal state.
3. A propeller turn-assist device according to claim 1 or 2, wherein the first support frame (2) comprises a first leg (21); the second support frame (3) comprises a second foot (31).
4. A propeller turn-assist device according to claim 3, wherein the first support frame (2) comprises a first support beam (22) arranged perpendicularly at the end of the first leg (21).
5. A propeller turn-over assisting device according to claim 3, wherein the second support frame (3) comprises a second support beam (32) arranged on a second support leg (31), and the main body frame (1) is provided with a diagonal brace (7) for supporting the second support beam (32); the second hanger (82) is provided on the second support beam (32).
6. A propeller turn-over assisting device according to claim 3, wherein the connecting frame (4) comprises four connecting beams (41) which are evenly distributed along the circumference of the flange (5).
7. A propeller turn-over assisting device according to claim 6, wherein a reinforcing plate (61) is arranged between two adjacent connecting beams (41), and each reinforcing plate (61) is enclosed to form a mounting frame (6) for mounting a laser positioning mechanism.
8. A method of mounting a propeller, wherein the propeller is mounted using a propeller turn-over assist apparatus as claimed in any one of claims 1 to 7, the method comprising the steps of:
horizontally placing the propeller auxiliary turning-over device on the small end face of the propeller hub to align the flange plate (5) with the small end face of the propeller hub and connecting the flange plate and the small end face of the propeller hub together through bolts;
the first hanging yard (81) and the second hanging yard (82) are connected with a chain block, and the first hanging yard (81) and the second hanging yard (82) are hung up by adjusting the length of a steel wire rope of the chain block, so that the main body frame (1) is turned over; in the process, the first support frame (2) is always in contact with the ground;
the turned main body frame (1) is integrally lifted off the ground, and then the height position of the second hanging weight (82) is adjusted until a hub on the main body frame (1) is in a horizontal state;
moving the main body frame (1) to the tail shaft of the ship body to align the central line of the propeller hub and the central line of the tail shaft; and then moving the hub to the direction close to the tail shaft until the hub is sleeved with the tail shaft, and fixing the hub of the propeller (01) and the tail shaft together to finish the installation of the propeller (01).
9. A method for disassembling a propeller, wherein the propeller is disassembled by using the propeller turn-over assisting device as claimed in any one of claims 1 to 7, the method for disassembling the propeller comprises the following steps:
hoisting the main body frame (1) in a vertical state to the tail shaft of the ship body, and aligning the central line of the flange plate with the central line of the propeller hub; continuing to move the main body frame (1) towards the direction close to the tail shaft until the flange plate (5) is contacted with the propeller hub, and then fixing the flange plate (5) and the propeller hub together;
loosening the propeller (01) to enable a hub and a tail shaft of the propeller (01) to be in a fixing release state;
moving the main body frame (1) in the direction away from the tail shaft until the hub is completely separated from the tail shaft; in the process, the central 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; adjusting the lengths of the steel wire ropes on the first hanging weight (81) and the second hanging weight (82) to turn over the main body frame (1) until the second support frame (3) is contacted with the ground; in the process, the first support frame (2) is always contacted with the ground;
and separating the flange plate (5) from the propeller hub to finish 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 true CN113620154A (en) | 2021-11-09 |
| CN113620154B 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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| Country | Link |
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| CN (1) | CN113620154B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| KR20190085628A (en) * | 2018-01-11 | 2019-07-19 | 삼성중공업 주식회사 | Propeller installation method |
| 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 |
| CN101959751A (en) * | 2008-11-04 | 2011-01-26 | 现代重工业株式会社 | Turnover device |
| CN104443260A (en) * | 2014-11-18 | 2015-03-25 | 中船黄埔文冲船舶有限公司 | Installing device and method for underwater part of full-revolving propeller |
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| Publication number | Priority date | Publication date | Assignee | Title |
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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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| Publication number | Publication date |
|---|---|
| CN113620154B (en) | 2023-09-12 |
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