CN213387389U - Elastic hoisting device for ship speed reducer - Google Patents
Elastic hoisting device for ship speed reducer Download PDFInfo
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- CN213387389U CN213387389U CN202022491970.XU CN202022491970U CN213387389U CN 213387389 U CN213387389 U CN 213387389U CN 202022491970 U CN202022491970 U CN 202022491970U CN 213387389 U CN213387389 U CN 213387389U
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- hoisting device
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- connecting rod
- reducer
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Abstract
An elastic hoisting device for a ship speed reducer relates to the technical field of ship speed reducer shock absorption. The ship speed reducer hoisting device aims at solving the problems that the existing ship speed reducer hoisting device is high in rigidity and large in vibration during use, so that the speed reducer is high in vibration noise, and the ship stealth performance is poor. The one end of naval vessel reduction gear upper surface is equipped with square blind hole, and the blind hole is inside to be inlayed and to have connecting sleeve, and connecting sleeve's top middle part is equipped with the through-hole, and the through-hole and the cover pad on connecting sleeve top are passed in proper order to the bottom of connecting rod, with lower lock nut threaded connection, the top of connecting rod passes through-hole on the hull frame in proper order, fixed cover, dish spring subassembly, go up fixed cover, vibration isolation cover and adjustment pad, with last lock nut threaded connection. The utility model is suitable for a naval vessel reduction gear shock attenuation technical field.
Description
Technical Field
The utility model relates to a naval vessel reduction gear shock attenuation technical field, concretely relates to naval vessel reduction gear elasticity hoist device.
Background
The concealment of the submarine is one of the key performance indexes, the stealth performance of the submarine is good and bad, and the submarine tactical assault and the success or failure of an attack task are related. Therefore, various measures are taken for vibration reduction and noise elimination of the submarine by naval in various countries for a long time so as to improve the stealth performance of the submarine.
The great reduction of the radiation noise of the nuclear submarine in China is an important problem to be solved urgently by the navy in China, and the life and the fighting power of the nuclear submarine are concerned. The main speed reducer is one of main power equipment of the nuclear submarine, the working state of the main speed reducer is extremely complex, the load working conditions are variable, external excitation introduced from the aspects of a prime motor and a load can occur, and internal excitation caused by meshing rigidity and gear transmission errors can also occur. In the course of navigation of submarine, the strong characteristic frequency emitted by mechanical equipment of main speed reducer is an indication mark for detecting ship by enemy sonar equipment. With the increasing requirements on the aspects of high speed, high power, high reliability and the like of the main reducer, the problem of vibration noise of the main reducer is increasingly prominent, and the problem of solving the problem is urgent.
In conclusion, the conventional ship reducer hoisting device has high rigidity and large vibration in use, so that the problem that the ship stealth performance is poor due to large vibration noise of the reducer is caused.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve current naval vessel reduction gear hoist device, the rigidity is stronger, and the vibration is great when using to it is great to cause reduction gear vibration noise, leads to the relatively poor problem of stealthy performance of naval vessel, and provides a naval vessel reduction gear elasticity hoist device.
The utility model discloses an elastic hoisting device for a ship reducer, wherein two ends of the upper surface of the ship reducer are respectively provided with an elastic hoisting device;
the elastic hoisting device comprises a connecting rod, an upper locking nut, an adjusting pad, a vibration isolating sleeve, an upper fixing sleeve, a disc spring assembly, a lower fixing sleeve, a connecting sleeve, a sleeve pad and a lower locking nut;
a square blind hole is formed in one end of the upper surface of the ship speed reducer, a connecting sleeve is embedded in the blind hole, a through hole is formed in the middle of the top end of the connecting sleeve, the bottom end of the connecting rod sequentially penetrates through the through hole and the sleeve gasket at the top end of the connecting sleeve and is in threaded connection with a lower locking nut, and the top end of the connecting rod sequentially penetrates through the through hole, the lower fixing sleeve, the disc spring assembly, the upper fixing sleeve, the vibration isolating sleeve and the adjusting gasket on the ship body base and is in threaded connection with the;
further, the sleeve gasket and the lower locking nut are arranged inside the connecting sleeve;
furthermore, a circular boss is arranged on the lower surface of the upper fixing sleeve, and a groove is arranged in the middle of the upper surface of the upper fixing sleeve;
furthermore, the lower part of the vibration isolation sleeve is arranged in a groove on the upper surface of the upper fixing sleeve;
furthermore, the diameter of the connecting rod is 50 mm-100 mm;
further, the diameter of the connecting rod is 80 mm;
further, the vibration that naval vessel reduction gear produced at operating condition is at first through connecting sleeve, cover pad, lock nut down, transmit the connecting rod on, then through last lock nut, the adjustment is filled up the back and is transmitted the vibration isolation and sheathe in, carry out primary vibration isolation, transmit the vibration isolation of carrying on the dish spring subassembly through last fixed cover again, transmit on hull frame through fixed cover down at last, can reduce the radiation noise that the reduction gear arouses by a wide margin through the twice vibration isolation of this kind of mounting structure.
Compared with the prior art, the utility model following beneficial effect has:
the utility model overcomes prior art's shortcoming, the top of adopting the connecting rod passes the through-hole on the hull frame in proper order, fixed cover down, the dish spring subassembly, go up fixed cover, vibration isolation sleeve and adjustment pad, with last lock nut threaded connection, the vibrations that the naval vessel reduction gear produced at operating condition are at first through the connecting sleeve, the cover pad, lock nut down, transmit on the connecting rod, then through locking nut, the adjustment is filled up the back and is transmitted on the vibration isolation sleeve, carry out primary vibration isolation, carry out secondary vibration isolation on transmitting the dish spring subassembly through last fixed cover again, the rigidity of this kind of structure is lower, vibration coupling between the equipment is little, the reduction gear low frequency vibration noise control effect has been improved greatly, reduce reduction gear vibration noise, thereby improve the stealthy performance of naval vessel.
Drawings
Fig. 1 is a cross-sectional view of the elastic hoisting device for the ship reducer of the present invention.
Detailed Description
The first embodiment is as follows: referring to fig. 1, the embodiment is described, and in the embodiment, two elastic hoisting devices are respectively arranged at two ends of the upper surface of a ship reducer 12;
the elastic hoisting device comprises a connecting rod 1, an upper locking nut 2, an adjusting pad 3, a vibration isolation sleeve 4, an upper fixing sleeve 5, a disc spring assembly 6, a lower fixing sleeve 7, a connecting sleeve 9, a sleeve pad 10 and a lower locking nut 11;
a square blind hole is formed in one end of the upper surface of the ship speed reducer 12, a connecting sleeve 9 is embedded in the blind hole, a through hole is formed in the middle of the top end of the connecting sleeve 9, the bottom end of the connecting rod 1 sequentially penetrates through the through hole and a sleeve gasket 10 in the top end of the connecting sleeve 9 and is in threaded connection with a lower locking nut 11, and the top end of the connecting rod 1 sequentially penetrates through the through hole in the ship body base 8, a lower fixing sleeve 7, a disc spring assembly 6, an upper fixing sleeve 5, a vibration isolation sleeve 4 and an adjusting gasket 3 and is in threaded connection with an upper;
this embodiment, the vibration that naval vessel reduction gear 12 produced at operating condition is at first through connecting sleeve 9, the sleeve gasket 10, lock nut 11 down, transmit on connecting rod 1, then through locking nut 2, on transmitting vibration isolation sleeve 4 behind the adjusting pad 3, carry out primary vibration isolation, carry out secondary vibration isolation on transmitting dish spring subassembly 6 through last fixed cover 5 again, transmit on hull frame 8 through fixed cover 7 down at last, can reduce the radiation noise that the reduction gear arouses by a wide margin through twice vibration isolation of this kind of mounting structure.
The second embodiment is as follows: the present embodiment is described with reference to fig. 1, and the present embodiment is a further limitation of the elastic hoisting device according to the first embodiment, in the elastic hoisting device for a ship reducer according to the present embodiment, the sleeve gasket 10 and the lower locknut 11 are disposed inside the connection sleeve 9;
in the embodiment, the sleeve gasket 10 and the lower locking nut 11 are arranged inside the connecting sleeve 9, so that the vibration of the ship reducer 12 is effectively transmitted upwards.
The third concrete implementation mode: the present embodiment is described with reference to fig. 1, and the present embodiment is a further limitation of the elastic hoisting device according to the first embodiment, in the elastic hoisting device for a ship reducer according to the present embodiment, a circular boss is provided on the lower surface of the upper fixing sleeve 5, and a groove is provided in the middle of the upper surface of the upper fixing sleeve 5.
The fourth concrete implementation mode: the present embodiment will be described with reference to fig. 1, which is a further limitation of the elastic hoisting device according to the first embodiment, in which the lower portion of the vibration isolating sleeve 4 is disposed inside the groove on the upper surface of the upper fixing sleeve 5;
in the specific embodiment, the lower part of the vibration isolation sleeve 4 is arranged in the groove on the upper surface of the upper fixed sleeve 5, so that the vibration of the ship speed reducer 12 is effectively reduced.
The fifth concrete implementation mode: the present embodiment will be described with reference to fig. 1, which is a further limitation of the elastic hoisting device according to the first embodiment, and the elastic hoisting device for a ship reducer according to the present embodiment has a diameter of the connecting rod 1 of 50mm to 100 mm;
in the specific embodiment, the diameter of the connecting rod 1 is 50-100 mm, so that the stability of the device is improved.
The sixth specific implementation mode: the present embodiment is described with reference to fig. 1, and the present embodiment is a further limitation of the elastic hoisting device according to the fifth embodiment, in the elastic hoisting device for a ship reducer according to the present embodiment, the diameter of the connecting rod 1 is 80 mm;
in the specific embodiment, the diameter of the connecting rod 1 is 80mm, so that the stability of the device is improved.
Principle of operation
The vibration that naval vessel reduction gear 12 produced at operating condition is at first through connecting sleeve 9, sleeve pad 10, lock nut 11 down, transmit on connecting rod 1, then through locking nut 2, transmit on vibration isolator 4 behind the adjusting pad 3, carry out primary vibration isolation, transmit through last fixed cover 5 and carry out secondary vibration isolation on dish spring subassembly 6 again, transmit on hull frame 8 through fixed cover 7 down at last, can reduce the radiation noise that the reduction gear arouses by a wide margin through the twice vibration isolation of this kind of mounting structure.
Claims (6)
1. The utility model provides a naval vessel reduction gear elasticity hoist device which characterized in that: two ends of the upper surface of the ship reducer (12) are respectively provided with an elastic hoisting device;
the elastic hoisting device comprises a connecting rod (1), an upper locking nut (2), an adjusting pad (3), a vibration isolation sleeve (4), an upper fixing sleeve (5), a disc spring assembly (6), a lower fixing sleeve (7), a connecting sleeve (9), a sleeve pad (10) and a lower locking nut (11);
one end of naval vessel reduction gear (12) upper surface is equipped with square blind hole, and blind hole inside has inlayed connecting sleeve (9), the top middle part of connecting sleeve (9) is equipped with the through-hole, the bottom of connecting rod (1) passes through the through-hole and the cover pad (10) on connecting sleeve (9) top in proper order, with lock nut (11) threaded connection down, the through-hole on hull frame (8) is passed in proper order on the top of connecting rod (1), fixed cover (7) down, dish spring subassembly (6), go up fixed cover (5), vibration isolation cover (4) and adjustment pad (3), with lock nut (2) threaded connection.
2. The ship reducer elastic hoisting device of claim 1, characterized in that: the sleeve gasket (10) and the lower locking nut (11) are arranged inside the connecting sleeve (9).
3. The ship reducer elastic hoisting device of claim 1, characterized in that: the lower surface of the upper fixing sleeve (5) is provided with a circular boss, and the middle part of the upper surface of the upper fixing sleeve (5) is provided with a groove.
4. The ship reducer elastic hoisting device according to claim 1 or 3, characterized in that: the lower part of the vibration isolation sleeve (4) is arranged in the groove on the upper surface of the upper fixed sleeve (5).
5. The ship reducer elastic hoisting device of claim 1, characterized in that: the diameter of the connecting rod (1) is 50 mm-100 mm.
6. The ship reducer elastic hoisting device of claim 5, characterized in that: the diameter of the connecting rod (1) is 80 mm.
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CN202022491970.XU CN213387389U (en) | 2020-11-02 | 2020-11-02 | Elastic hoisting device for ship speed reducer |
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CN202022491970.XU CN213387389U (en) | 2020-11-02 | 2020-11-02 | Elastic hoisting device for ship speed reducer |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112249860A (en) * | 2020-11-02 | 2021-01-22 | 中国船舶重工集团公司第七0三研究所 | Elastic hoisting device for ship speed reducer |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112249860A (en) * | 2020-11-02 | 2021-01-22 | 中国船舶重工集团公司第七0三研究所 | Elastic hoisting device for ship speed reducer |
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