CN112722197A - Screw fastening structure and boats and ships - Google Patents
Screw fastening structure and boats and ships Download PDFInfo
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- CN112722197A CN112722197A CN202110124178.7A CN202110124178A CN112722197A CN 112722197 A CN112722197 A CN 112722197A CN 202110124178 A CN202110124178 A CN 202110124178A CN 112722197 A CN112722197 A CN 112722197A
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- 230000003068 static effect Effects 0.000 claims description 10
- 238000010030 laminating Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000004593 Epoxy Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001141 propulsive effect Effects 0.000 description 1
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- 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
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Abstract
The invention discloses a propeller fastening structure and a ship, and belongs to the technical field of ships; the invention comprises a screw shaft which is provided with a first matching part and a second matching part in sequence; the second matching part is sleeved with a propeller and a fastener which is in threaded connection with the first matching part and can fasten the propeller on the second matching part; the screw propeller fixing device has the advantages that the screw propeller can be reliably fixed on the screw shaft, the screw propeller fixing device is convenient to disassemble and assemble, time and labor are saved, and maintenance cost is low.
Description
Technical Field
The invention relates to the technical field of ships, in particular to a propeller fastening structure and a ship.
Background
The screw means to lean on the paddle rotatory in air or aquatic, turn into the device of propulsive force with engine rotation power, can have two or more leaves and hub to link to each other, maintain the screw for the convenience later stage, general screw is mostly fixed on the stern axle through installing with screw bolt and nut, but produce the not hard up condition of bolt very easily under the effect of spiral thrust, there is the potential safety hazard, in the prior art, generally, coating one deck epoxy daub in bolt department, because the coating of epoxy daub can't go on under water, the dismouting that just can realize the screw after arranging on boats and ships, the dismouting is inconvenient, the time limit for a project is longer, maintenance cost is higher.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a propeller fastening structure and a ship, wherein the propeller fastening structure can reliably fasten a propeller on a stern shaft, is convenient to disassemble and assemble, saves time and labor and is low in maintenance cost.
In order to achieve the above purpose, the invention provides the following technical scheme:
the invention discloses a propeller fastening structure, comprising:
the screw shaft is sequentially provided with a first matching part and a second matching part;
the second matching part is sleeved with a propeller, an
A fastener threadedly connected to the first fitting portion and capable of fastening a propeller to the second fitting portion;
the fastener is movably connected with at least one braking structure which can rotate along with the fastener and can be clamped with or separated from the screw shaft, so that after the propeller is fastened by the fastener, the braking structure is clamped with the screw shaft to enable the fastener to be static.
Furthermore, the fastener is a threaded sleeve with internal threads, an accommodating cavity used for accommodating the braking structure and movably connected with the braking structure is formed in one side of the fastener, a braking channel is formed in the end, far away from the propeller, of the fastener, and the braking structure penetrates through the braking channel to be clamped with or separated from the stern shaft.
Furthermore, the accommodating cavity is positioned at the end of the propeller and is provided with a first accommodating area, so that the propeller is fastened by the fastening piece, and the braking structure and the fastening piece form an integrated structure by the first accommodating area.
Furthermore, a second accommodating area used for avoiding the braking structure is arranged at the end, away from the first accommodating area, of the accommodating cavity, so that the braking structure is clamped with the stern shaft, and the end face of the braking structure is coplanar with the end face of the second accommodating area of the fastener.
Furthermore, the braking structure is a connecting rod structure and comprises a first rod body, a second rod body and a third rod body, wherein the second rod body is rotatably connected with the first rod body through a hinge shaft, and the third rod body is fixedly connected to the second rod body;
the third rod body can extend into the brake channel;
the stern shaft is provided with a plurality of clamping parts corresponding to the end surface of the brake channel in the circumferential direction, and the third rod body can be clamped with or separated from the clamping parts at any position.
Furthermore, one end of the second rod body is provided with a through hole which is rotatably connected with the hinge shaft, the second rod body is positioned at the through hole end and provided with a strip hole which is parallel to the third rod body, and the strip hole is communicated with the through hole.
Furthermore, the clamping portion is a blind hole, and the blind hole adsorbs the third rod body through a magnet.
Furthermore, the braking structure still includes can stretch into the braking passageway with the anticreep spare that the stern is connected, the anticreep spare through the anticreep portion with the laminating of the second body of rod.
Furthermore, the anti-slip piece is a screw rod, one end of the anti-slip piece is provided with a screw cap, and the screw cap is an anti-slip part;
and the end surface of the stern shaft corresponding to the braking channel is provided with a threaded hole for being in threaded connection with the anti-falling piece.
The invention discloses a ship, which is provided with a stern shaft and a propeller sleeved on the stern shaft, and is characterized in that the propeller is arranged on the stern shaft; the propeller fastening structure is arranged on the stern shaft.
In the technical scheme, the propeller fastening structure and the ship provided by the invention have the beneficial effects that:
1. the invention relates to a propeller fastening structure, which comprises a stern shaft, a propeller and a fastener, wherein the fastener is movably connected with a brake structure, when in assembly, after the propeller is matched with a second matching part of the stern shaft, the fastener is matched with a first matching part and tightly presses the propeller through an end surface, the propeller is fastened on the second matching part, the brake structure is clamped with the stern shaft, and then the position of the fastener is locked, so that the fastener is static, the fastener is prevented from loosening, the propeller is reliably fastened by the fastener, when in disassembly, the brake structure is released, the brake structure is separated from the stern shaft, the fastener is released, the assembly and disassembly are convenient, time and labor are saved, the propeller can be quickly replaced on land and under water, the assembly and disassembly efficiency is high, the maintenance cost is low;
2. according to the fastener, the accommodating cavity for accommodating the brake structure is formed in one side of the fastener, the brake channel is formed in the end, away from the propeller, of the fastener, the brake structure is accommodated through the accommodating cavity, the fastener is convenient to rotate, the brake structure is prevented from protruding out of the fastener and being not beneficial to locking the fastener by a wrench or other auxiliary tools, and after the propeller is fastened by the fastener, the brake structure penetrates through the brake channel to be clamped with the propeller shaft through the brake channel, so that the fastener is static, the propeller is further stably fastened, and the fastener is prevented from loosening;
3. according to the accommodating cavity designed by the invention, one end of the accommodating cavity is provided with the first accommodating area, the other end of the accommodating cavity is provided with the second accommodating area, after the screw propeller is fastened by the fastening piece conveniently through the first accommodating area, the first accommodating area enables the brake structure and the fastening piece to form an integrated structure, one free end of the brake structure is limited, the brake structure is conveniently clamped with the stern shaft, the brake structure is avoided through the second accommodating area, when the brake structure is clamped with the stern shaft, the end surface of the brake structure is coplanar with the end surface of the fastening piece, the brake structure is prevented from being mistakenly opened due to hooking of foreign matters, and;
4. the brake structure designed by the invention is a connecting rod structure, can be repeatedly used, is convenient to assemble and high in efficiency, and is beneficial to saving the maintenance cost.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a schematic view of a propeller fastening structure and a ship according to the present invention;
FIG. 2 is an exploded view of a propeller fastening structure and vessel according to the present disclosure;
FIG. 3 is a schematic structural view of a propeller fastening structure and a ship braking structure according to the present invention;
FIG. 4 is a schematic view of a propeller fastening structure and a ship fastening member according to the present invention;
fig. 5 is a schematic structural view of another view angle of the propeller fastening structure and the ship fastening member disclosed by the invention.
Description of reference numerals:
10. a stern shaft; 11. a first mating portion; 12. a second mating portion; 13. a fastening part;
20. a propeller;
30. a fastener; 31. an accommodating cavity; 311. a first accommodating area; 312. a second accommodating area; 32. a brake channel;
40. a braking structure; 41. a first rod body; 42. a second rod body; 43. a third rod body; 44. a strip hole;
50. a drop-out prevention member; 51. a drop-out prevention part.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1;
the invention provides a propeller fastening structure and a ship, comprising:
a stern shaft 10 having a first fitting portion 11 and a second fitting portion 12 in this order;
the second fitting portion 12 is fitted with a propeller 20, an
A fastening member 30 threadedly coupled to the first fitting portion 11 and capable of fastening the propeller 20 to the second fitting portion 12;
the fastener 30 is movably connected with at least one braking structure 40 which can rotate along with the fastener 30 and can be engaged with or disengaged from the stern shaft 10, so that after the propeller 20 is fastened by the fastener 30, the braking structure 40 is engaged with the stern shaft 10 to make the fastener 30 static.
Specifically, referring to fig. 1, in this structure, a propeller 20 is sleeved outside a stern shaft 10, one end of the stern shaft 10 is sequentially provided with a first matching portion 11 and a second matching portion 12, the propeller 20 is sleeved on the second matching portion 12 of the stern shaft 10, the end surface of a fastener 30 is attached to the hub end surface of the propeller 20, the propeller 20 is fastened on the second matching portion 12, one side of the fastener 30 is movably connected with a brake structure 40, certainly, considering that the stress of the fastener 30 is balanced, two or more brake structures 40 can be symmetrically arranged on the fastener 30, in this embodiment, the fastener 30 is movably connected with one brake structure 40 as an example, when assembling, after the propeller 20 is matched with the second matching portion 12, the fastener 30 is in threaded connection with the first matching portion 11 and compresses the propeller 20 through the end surface, the propeller 20 is fastened on the second matching portion 12, the brake structure 40 is fastened with the stern shaft 10, the position of the fastening piece 30 is locked, the fastening piece 30 is made to be static, the fastening piece 30 is prevented from loosening, the fastening piece 30 is guaranteed to reliably fasten the propeller 20, when the propeller is disassembled, the brake structure 40 is released, the brake structure 40 is separated from the stern shaft 10, the fastening piece 30 is released, the assembling and disassembling are convenient, time and labor are saved, and the maintenance cost is low;
preferably, the fastening member 30 is a threaded sleeve with an internal thread, one side of the threaded sleeve is provided with an accommodating cavity 31 for accommodating the braking structure 40 and movably connected with the braking structure 40, the end of the fastening member 30 far away from the propeller 20 is provided with a braking channel 32, and the braking structure 40 passes through the braking channel 32 to be clamped with or separated from the stern shaft 10.
Specifically, in the structure, the fastening member 30 is a threaded sleeve, the fastening member 30 is in threaded connection with the first matching portion 11 through an internal thread, the assembly is convenient, the propeller 20 can be quickly replaced on land and under water, the disassembly and assembly efficiency is high, the fastening member 30 is provided with a flange structure with a diameter larger than the diameter of the circumscribed circle of the fastening member 30 at the end of the propeller 20, the contact area between the fastening member 30 and the propeller 20 is increased through the flange structure, so that the fastening member 30 presses the propeller 20 more stably, in order to rotate the fastening member 30, an accommodating cavity 31 is formed at one side of the fastening member 30, a braking structure 40 is movably connected in the accommodating cavity 31 and is accommodated in the accommodating cavity 31, the braking structure 40 is prevented from protruding out of the fastening member 30 to be unfavorable for locking the fastening member 30 by a wrench or other auxiliary tools, a braking channel 32 is formed at the, through the braking channel 32, the braking structure 40 passes through the braking channel 32 to be clamped with the stern shaft 10, so that the fastening piece 30 is static, the propeller 20 is further stably fastened, and the fastening piece 30 is prevented from loosening;
preferably, the accommodating cavity 31 is opened with a first accommodating area 311 at the end of the propeller 20 so that the fastener 30 fastens the propeller 20, and the first accommodating area 311 enables the braking structure 40 and the fastener 30 to form an integral structure.
Specifically, the end surface of the fastener 30 in the structure is abutted against and contacted with the end surface of the propeller 20, one side of the fastener 30 is provided with an accommodating cavity 31, the accommodating cavity 31 extends from one end of the fastener 30 to the other end, the accommodating cavity 31 is positioned at the end of the propeller 20 and is provided with a first accommodating area 311, when the end surface of the fastener 30 is abutted against and contacted with the end surface of the propeller 20, the first accommodating area 311 and the end surface of the propeller 20 form a closed area, so that the brake structure 40 and the fastener 30 form an integrated structure, in addition, the brake structure 40 structure can freely rotate around an axis parallel to the radial direction of the stern shaft 10 in the first accommodating cavity 31, the brake structure 40 and the fastener 30 form an integrated structure through the first accommodating area 311, and one free end of the brake structure 40 is limited, so that the brake structure 40 is conveniently clamped with the stern shaft 10;
preferably, the end of the accommodating cavity 31 far from the first accommodating area 311 is provided with a second accommodating area 312 for avoiding the braking structure 40, so that the braking structure 40 is clamped with the stern shaft 10, and the end surface of the braking structure 40 is coplanar with the end surface of the second accommodating area 312 of the fastener 30.
Specifically, in the structure, in order to avoid the brake structure 40 from protruding out of the end surface of the fastening member 30 and hooking foreign objects, the end of the accommodating cavity 31 far away from the first accommodating area 311 is provided with a second accommodating area 312, the second accommodating area 312 is used for avoiding the brake structure 40, when the brake structure 40 is clamped with the stern shaft 10, the end surface of the brake structure 40 is coplanar with the end surface of the fastening member 30, and the brake structure 40 is prevented from being mistakenly opened due to hooking of foreign objects;
preferably, the braking structure 40 is a link structure, and includes a first rod 41, a second rod 42 rotatably connected to the first rod 41 via a hinge, and a third rod 43 fixedly connected to the second rod 42;
the third rod 43 can extend into the brake passage 32;
the plurality of engaging portions 13 are circumferentially arranged on the end surface of the stern shaft 10 corresponding to the brake channel 32, and the third rod 43 can be engaged with or disengaged from the engaging portion 13 at any position.
Specifically, in this structure, the first rod 41 and the second rod 42 of the braking structure 40 can be connected end to end through a shaft, the first rod 41 can be a T-shaped structure or other structures, as long as the fastening member 30 contacts the propeller 20, the first rod 41 can be connected with the fastening member 30 to form an integral structure and can freely rotate around an axis parallel to the radial direction of the stern shaft 10, so as to limit a free end of the braking structure 40, one side of the second rod 42 is fixedly connected with the third rod 43, the axis of the third rod 43 in the length direction is perpendicular to the axis of the second rod 42 in the length direction, when the fastening member 30 fastens the propeller 20, the second rod 42 rotates around the shaft, so that the axis of the third rod 43 in the length direction is parallel to the axis of the first rod 41 in the length direction, the third rod 43 is engaged with the engaging portion 13 of the stern shaft 10 in a plugging manner, the fastening piece 30 is braked, so that the fastening piece 30 is static, the fastening piece 30 is prevented from loosening, the fastening piece 30 is ensured to reliably fasten the propeller 20, and the braking structure 40 can be repeatedly used, is convenient to assemble and high in efficiency, and is beneficial to saving of maintenance cost;
preferably, one end of the second rod 42 is provided with a through hole rotatably connected to the hinge shaft, and the end of the second rod 42 located at the through hole is provided with a strip hole 44 parallel to the third rod 43, and the strip hole 44 is communicated with the through hole.
Specifically, in the structure, in order to realize the rotary connection between the first rod body 41 and the second rod body 42, a hinge shaft is fixedly connected to the first rod body 41, a strip hole 44 is formed at one end of the second rod body 42, the second rod body 42 can be rotatably connected with the hinge shaft through the strip hole 44, the first rod body 41 and the second rod body 42 can slide along the strip hole 44, the strip hole 44 is parallel to the third rod body 43, and when the second rod body 42 slides along the strip hole 44, the third rod body 43 can be clamped or separated with the clamping part 13 of the stern shaft 10 in a plugging manner;
preferably, the engaging portion 13 is a blind hole, and the blind hole attracts the third rod 43 via a magnet.
Specifically, in the structure, the clamping portion 13 is a blind hole, the third rod 43 can extend into the blind hole, a magnet is mounted on the bottom wall of the blind hole, the third rod 43 is made of metal capable of being attracted by the magnet, or a first magnetic pole is distributed on the bottom wall of the blind hole, a second magnetic pole is distributed at the tail end of the third rod 43, the first magnetic pole and the second magnetic pole are attracted, only the third rod 43 extends into the blind hole to be clamped with the clamping portion 13, when the third rod 43 needs to be separated from the clamping portion 13, the second rod 42 is pulled along the direction of the strip hole 44 to overcome magnetic force, and the third rod 43 is separated from the clamping portion 13;
preferably, the brake structure 40 further comprises a slip-off preventing member 50 capable of extending into the brake channel 32 to connect with the stern shaft 10, and the slip-off preventing member 50 is attached to the second rod body 42 through a slip-off preventing portion 51.
Specifically, in order to prevent the third rod 43 of the brake structure 40 from being opened by a foreign object or other external force in the working process, and ensure the connection reliability between the third rod 43 and the engaging portion 13, the stern shaft 10 is connected with the anti-disengaging member 50, the anti-disengaging member 51 extends into the brake channel 32 to be connected with the stern shaft 10, and is attached to the second rod 42 through the anti-disengaging member 51, so as to prevent the third rod 43 from disengaging from the engaging portion 13, when the brake structure is disassembled, the anti-disengaging member 50 is firstly released from being connected with the stern shaft 10, and the third rod 43 and the engaging portion 13 are released;
preferably, the slip-off preventing member 50 is a screw having a nut at one end thereof, the nut being a slip-off preventing portion 51;
the end surface of the stern shaft 10 corresponding to the brake channel 32 is provided with a threaded hole for being in threaded connection with the anti-falling piece 50.
Specifically, in the structure, the anti-release piece 50 is a screw rod, a loosening gasket is sleeved on the screw rod, a nut is integrally formed at one end of the screw rod and is an anti-release part 51, the diameter of an excircle of the nut can be larger than that of the braking channel 32, or the diameter of an excircle of the nut can be smaller than that of the braking channel 32, as long as the nut can be attached to the second rod body 42, the nut can be attached to the second rod body 42 to press the second rod body 42, and can also be attached to the end face of the fastener 20 to press the fastener 30, through the anti-release part 51, the brake structure 40 can be effectively prevented from being mistakenly opened, the fastener 30 can be further prevented from axially moving, the fastener 30 is prevented from being released, and the fastener 30 is ensured to reliably fasten the;
during assembly, the brake is in threaded connection with the internal thread of the stern shaft 10 through the external thread, after connection, the nut is attached to the end face of the fastener 30 through the loose gasket, and then is attached to the second rod body 42 and compresses the second rod body 42, so that the third rod body 43 is prevented from being separated from the clamping part 13, and the reliability of the brake structure 40 for locking the fastener 30 is ensured;
the invention also discloses a ship, which is provided with a stern shaft 10 and a propeller 20 sleeved on the stern shaft 10, wherein the propeller fastening structure is arranged on the stern shaft 10, the propeller 20 is sleeved on a second matching part 12 of the stern shaft 10 firstly during assembly, in order to save assembly time, a fastening piece 30 and a first matching part 11 connected on the stern shaft 10 can be firstly arranged, when the distance between the fastening piece 30 and the propeller 20 is close to the thickness of a first rod body 41 of a braking structure 40, the first rod body 41 is arranged in a first accommodating area 311 of an accommodating cavity 31, the first rod body 41 is integrally abutted against the accommodating cavity 31, the fastening piece 30 is continuously rotated until the fastening piece 30 reaches fastening torque, a third rod body 43 corresponds to any one clamping part 13 on the stern shaft 10, the second rod body 42 is pushed to clamp the third rod body 43 with the corresponding clamping part 13, and the anti-slip piece 50 is continuously assembled, the second rod 42 is further pressed by the stopper 50, and the third rod 43 is prevented from being disengaged from the engaging portion 13, so that the brake mechanism stably locks the fastener 30.
In the technical scheme, the propeller fastening structure and the ship provided by the invention have the beneficial effects that:
1. the invention relates to a propeller fastening structure, which comprises a stern shaft, a propeller and a fastener, wherein the fastener is movably connected with a brake structure, when in assembly, after the propeller is matched with a second matching part of the stern shaft, the fastener is matched with a first matching part and tightly presses the propeller through an end surface, the propeller is fastened on the second matching part, the brake structure is clamped with the stern shaft, and then the position of the fastener is locked, so that the fastener is static, the fastener is prevented from loosening, the propeller is reliably fastened by the fastener, when in disassembly, the brake structure is released, the brake structure is separated from the stern shaft, the fastener is released, the assembly and disassembly are convenient, time and labor are saved, the propeller can be quickly replaced on land and under water, the assembly and disassembly efficiency is high, the maintenance cost is low;
2. according to the fastener, the accommodating cavity for accommodating the brake structure is formed in one side of the fastener, the brake channel is formed in the end, away from the propeller, of the fastener, the brake structure is accommodated through the accommodating cavity, the fastener is convenient to rotate, the brake structure is prevented from protruding out of the fastener and being not beneficial to locking the fastener by a wrench or other auxiliary tools, and after the propeller is fastened by the fastener, the brake structure penetrates through the brake channel to be clamped with the propeller shaft through the brake channel, so that the fastener is static, the propeller is further stably fastened, and the fastener is prevented from loosening;
3. according to the accommodating cavity designed by the invention, one end of the accommodating cavity is provided with the first accommodating area, the other end of the accommodating cavity is provided with the second accommodating area, after the screw propeller is fastened by the fastening piece conveniently through the first accommodating area, the first accommodating area enables the brake structure and the fastening piece to form an integrated structure, one free end of the brake structure is limited, the brake structure is conveniently clamped with the stern shaft, the brake structure is avoided through the second accommodating area, when the brake structure is clamped with the stern shaft, the end surface of the brake structure is coplanar with the end surface of the fastening piece, the brake structure is prevented from being mistakenly opened due to hooking of foreign matters, and;
4. the brake structure designed by the invention is a connecting rod structure, can be repeatedly used, is convenient to assemble and high in efficiency, and is beneficial to saving the maintenance cost.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (10)
1. A propeller fastening structure, characterized by comprising:
a stern shaft (10) having a first fitting portion (11) and a second fitting portion (12) in this order;
the second fitting part (12) is sleeved with a propeller (20), and
a fastener (30) which is screwed with the first fitting part (11) and can fasten a propeller (20) to the second fitting part (12);
the fastener (30) is movably connected with at least one braking structure (40) which can rotate along with the fastener (30) and can be clamped with or separated from the screw shaft (10), so that the propeller (20) is fastened by the fastener (30), and the fastening structure (30) is static by clamping the braking structure (40) with the screw shaft (10).
2. A propeller fastening structure as set forth in claim 1, wherein;
the fastening piece (30) is a threaded sleeve with internal threads, an accommodating cavity (31) used for accommodating the braking structure (40) and movably connected with the braking structure (40) is formed in one side of the fastening piece (30), a braking channel (32) is formed in the end, far away from the propeller (20), of the fastening piece (30), and the braking structure (40) penetrates through the braking channel (32) to be clamped or separated with the stern shaft (10).
3. A propeller fastening structure as set forth in claim 2, wherein;
the accommodating cavity (31) is positioned at the end of the propeller (20) and is provided with a first accommodating area (311) so that the propeller (20) can be fastened by the fastening piece (30), and the braking structure (40) and the fastening piece (30) form an integrated structure by the first accommodating area (311).
4. A propeller fastening structure as set forth in claim 3, wherein;
the end, far away from the first accommodating area (311), of the accommodating cavity (31) is provided with a second accommodating area (312) used for avoiding the brake structure (40), so that the brake structure (40) is clamped with the stern shaft (10), and the end face of the brake structure (40) is coplanar with the end face of the second accommodating area (312) of the fastener (30).
5. A propeller fastening structure according to any one of claims 2-4, wherein;
the brake structure (40) is a connecting rod structure and comprises a first rod body (41), a second rod body (42) and a third rod body (43), wherein the second rod body (42) is rotatably connected with the first rod body (41) through a hinge shaft, and the third rod body (43) is fixedly connected to the second rod body (42);
the third rod body (43) can extend into the brake channel (32);
the stern shaft (10) is circumferentially provided with a plurality of clamping parts (13) corresponding to the end face of the brake channel (32), and the third rod body (43) can be clamped with or separated from the clamping parts (13) at any position.
6. A propeller fastening structure as claimed in claim 5, wherein;
the hinge shaft is characterized in that one end of the second rod body (42) is provided with a through hole in rotary connection with the hinge shaft, the second rod body (42) is positioned at the through hole end and provided with a strip hole (44) parallel to the third rod body (43), and the strip hole (44) is communicated with the through hole.
7. A propeller fastening structure as claimed in claim 6, wherein;
the clamping part (13) is a blind hole, and the blind hole adsorbs the third rod body (43) through a magnet.
8. A propeller fastening structure as claimed in claim 7, wherein;
braking structure (40) still including can stretch into braking passageway (32) with only take-off (50) that stern axle (10) are connected, only take-off (50) through only taking-off portion (51) with the laminating of second body of rod (42).
9. A propeller fastening structure as set forth in claim 8, wherein;
the anti-slip part (50) is a screw, one end of the anti-slip part is provided with a screw cap, and the screw cap is an anti-slip part (51);
the end face, corresponding to the braking channel (32), of the screw shaft (10) is provided with a threaded hole for being in threaded connection with the anti-slip piece (50).
10. A ship is provided with a stern shaft (10) and a propeller (20) sleeved on the stern shaft (10), and is characterized in that; the propeller fastening structure as claimed in any one of claims 1 to 9 is mounted on the stern shaft (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110124178.7A CN112722197A (en) | 2021-01-29 | 2021-01-29 | Screw fastening structure and boats and ships |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110124178.7A CN112722197A (en) | 2021-01-29 | 2021-01-29 | Screw fastening structure and boats and ships |
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| CN112722197A true CN112722197A (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110124178.7A Pending CN112722197A (en) | 2021-01-29 | 2021-01-29 | Screw fastening structure and boats and ships |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050207865A1 (en) * | 2004-03-22 | 2005-09-22 | Universal Metal Products, Inc. | Fastener assembly |
| CN104290897A (en) * | 2014-08-08 | 2015-01-21 | 东莞市中堂永昌机械厂 | Improved tail shaft for ship |
| CN105257665A (en) * | 2015-09-29 | 2016-01-20 | 玉环胜友工具有限公司 | Self-tightening multi-screw-pair anti-loose mechanical fastening mechanism |
| CN205440821U (en) * | 2015-12-31 | 2016-08-10 | 湖南大洋机械制造有限公司 | Marine tailing axle screw and cap double -purpose clog |
| CN208010752U (en) * | 2018-02-08 | 2018-10-26 | 王楷泉 | A kind of aerospace Anti-off bolt |
| CN110001898A (en) * | 2019-04-25 | 2019-07-12 | 广州船舶及海洋工程设计研究院（中国船舶工业集团公司第六0五研究院） | The fastening assembly of ship and its propeller |
-
2021
- 2021-01-29 CN CN202110124178.7A patent/CN112722197A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050207865A1 (en) * | 2004-03-22 | 2005-09-22 | Universal Metal Products, Inc. | Fastener assembly |
| CN104290897A (en) * | 2014-08-08 | 2015-01-21 | 东莞市中堂永昌机械厂 | Improved tail shaft for ship |
| CN105257665A (en) * | 2015-09-29 | 2016-01-20 | 玉环胜友工具有限公司 | Self-tightening multi-screw-pair anti-loose mechanical fastening mechanism |
| CN205440821U (en) * | 2015-12-31 | 2016-08-10 | 湖南大洋机械制造有限公司 | Marine tailing axle screw and cap double -purpose clog |
| CN208010752U (en) * | 2018-02-08 | 2018-10-26 | 王楷泉 | A kind of aerospace Anti-off bolt |
| CN110001898A (en) * | 2019-04-25 | 2019-07-12 | 广州船舶及海洋工程设计研究院（中国船舶工业集团公司第六0五研究院） | The fastening assembly of ship and its propeller |
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Application publication date: 20210430 |