CN215444263U - Noise reduction device of ship engine - Google Patents

Abstract

The utility model discloses a noise reduction device of a ship engine, which comprises a connecting disc, wherein one side of the connecting disc is provided with a connecting pipe, the connecting pipe is connected with an engine air inlet pipe through a connecting mechanism, a noise reduction mechanism is arranged in the connecting pipe, the noise reduction mechanism comprises a movable sleeve, the outer side of the movable sleeve is connected with the inner side of the connecting pipe through threads, the bottom of the movable sleeve is provided with a positioning ring, a filter disc A is arranged in the movable sleeve, one side of the filter disc A is provided with a plurality of concentric cylinders, the side edges of the concentric cylinders are provided with filter discs B, one side of each filter disc B is provided with a connecting ring, the connecting ring is connected with the concentric cylinders through threads, and the filter discs A and the filter discs B are both provided with uniformly arranged vent holes. The air flow rate can be reduced to disperse the air flow, and the noise of the air can be reduced.

Description

Noise reduction device of ship engine

Technical Field

The utility model relates to the technical field of noise reduction of ship engines, in particular to a noise reduction device of a ship engine.

Background

China is a country with numerous rivers, so ship transportation is a very important transportation mode, mainly ships are used for transporting passengers or goods through water paths, and when the existing ships are used, the operation of engines of the existing ships can generate large noise. Especially for passenger ships and mail ships, the noises can cause troubles for passengers and crews, and the overall comfort level is reduced, wherein the intake noise is one of the main aerodynamic noise sources of the engine, so the intake noise needs to be reduced by reducing the strength of air pressure pulsation and the strength of air vortex in an air inlet pipe, the existing noise reduction mechanism generally needs to be installed on the air inlet pipe of the engine, the existing noise reduction mechanism has poor noise reduction effect, and the existing noise reduction mechanism is inconvenient to be connected with different air inlet pipes due to different diameters of the air inlet pipes of different engines.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a noise reduction device of a ship engine.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a device of making an uproar falls of marine engine, includes engine intake pipe and connection pad, one side of connection pad is equipped with the connecting pipe, the connecting pipe passes through coupling mechanism and connects the engine intake pipe, be equipped with in the connecting pipe and fall the mechanism of making an uproar, it includes the movable sleeve to fall the mechanism of making an uproar, the outside of movable sleeve passes through threaded connection with the inboard of connecting pipe, the bottom of movable sleeve is equipped with the holding ring, be equipped with filter disc A in the movable sleeve, one side of filter disc A is equipped with a plurality of concentric drums, and is a plurality of the side of concentric drum is equipped with filter disc B, one side of filter disc B is equipped with the go-between, and the go-between passes through the concentric drum of threaded connection, all be equipped with align to grid's air vent on filter disc A and the filter disc B.

Preferably, the concentric cylinders and the movable sleeve are made of sound insulation materials.

Preferably, sealing gaskets are arranged between the engine air inlet pipe and the connecting disc and made of rubber.

Preferably, the connecting mechanism comprises a threaded sleeve, the threaded sleeve is screwed on the outer side of the connecting pipe, a rotating handle A is arranged at the upper end of the threaded sleeve, a limiting ring is arranged at the lower end of the threaded sleeve, a ring groove matched with the limiting ring is formed in the threaded sleeve, L-shaped positioning frames are arranged on two sides of the limiting ring, limiting clamping sleeves are arranged on two sides of the connecting disc, the L-shaped positioning frames are movably arranged in the limiting clamping sleeves, positioning mechanisms are arranged on the two L-shaped positioning frames, and an engine air inlet pipe is arranged between the two positioning mechanisms.

Preferably, positioning mechanism includes the threaded rod, be equipped with the threaded rod on the L shape locating rack, the one end of threaded rod is equipped with turning handle B, the tip of threaded rod is equipped with the arc locating plate, be equipped with the connector on the arc locating plate, be equipped with the bearing on the connector, and the bearing rotates connecting threaded rod.

Compared with the prior art, the utility model has the beneficial effects that:

1. through the setting of holding ring, can place filter disc A, filter disc B and a plurality of concentric drums in the movable sleeve, mode through threaded connection, make the movable sleeve set up in the connecting tube, consequently filter disc A and filter disc B can filter the air that gets into in the engine intake pipe, filter disc A and filter disc B simultaneously, can air flow rate reduction, make the air current dispersion, in addition the concentric drum that a plurality of acoustic material made, can separate the air, give sound insulation in proper order, the noise reduction effect is better.

2. Through rotatory movable sleeve, can take out the movable sleeve from the connecting tube in, then can take out filter disc A, filter disc B and a plurality of concentric drums from the movable sleeve, rotatory filter disc B of rethread for the go-between of filter disc B tip breaks away from concentric drum, thereby can dismantle filter disc B, through such setting, conveniently dismantles clearance, the recycling of being convenient for to filter disc A, filter disc B and a plurality of concentric drums.

3. Drive the threaded rod rotatory through rotation handle B, make the threaded rod drive the lateral wall contact of arc locating plate and engine intake pipe, then through the setting of connector cooperation bearing, make the threaded rod rotate and set up on the arc locating plate, consequently connection pad and connecting pipe can carry out fixed connection through the both sides of two positioning mechanism with the engine intake pipe, then through rotatory thread bush, make the thread bush drive the connection pad reciprocate between two L shape locating racks, make the tip zonulae occludens of connection pad and engine intake pipe, through such setting, owing to make the connection pad can be connected with the engine intake pipe of different diameters, high durability and convenient use.

Drawings

Fig. 1 is a schematic structural diagram of a noise reduction device of a marine engine according to the present invention;

FIG. 2 is a schematic structural diagram of a noise reduction mechanism according to the present invention;

fig. 3 is a partial enlarged view of the utility model at a in fig. 1.

In the figure: the engine air inlet pipe comprises an engine air inlet pipe 1, a connecting disc 2, a connecting pipe 3, a noise reduction mechanism 4, a movable sleeve 41, a limiting ring 42, a filter disc A43, a filter disc B44, a vent hole 45, a concentric cylinder 46, a connecting ring 47, a threaded sleeve 5, a rotating handle A6, a limiting ring 7, an L-shaped positioning frame 8, a positioning mechanism 9, a threaded rod 91, a rotating handle B92, an arc-shaped positioning plate 93, a connector 94, a bearing 95, a limiting clamping sleeve 10 and a sealing gasket 11.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, a noise reduction device for a marine engine comprises an engine intake pipe 1 and a connecting disc 2, wherein one side of the connecting disc 2 is provided with a connecting pipe 3, the connecting pipe 3 is connected with the engine intake pipe 1 through a connecting mechanism, a noise reduction mechanism 4 is arranged in the connecting pipe 3, the noise reduction mechanism 4 comprises a movable sleeve 41, the outer side of the movable sleeve 41 is in threaded connection with the inner side of the connecting pipe 3, the bottom of the movable sleeve 41 is provided with a positioning ring 42, a filter disc a43 is arranged in the movable sleeve 41, one side of a filter disc a43 is provided with a plurality of concentric cylinders 46, the side of the plurality of concentric cylinders 46 is provided with a filter disc B45, one side of a filter disc B45 is provided with a connecting ring 47, the connecting ring 47 is in threaded connection with the concentric cylinders 46, vent holes 45 which are uniformly arranged are arranged on the filter disc a43 and the filter disc B44, and the filter disc a43, a filter disc B44 and the plurality of concentric cylinders 46 can be placed in the movable sleeve 41 through the positioning ring 42, the movable sleeve 41 is arranged in the connecting pipe 3 in a threaded connection mode, so that the filter disc A43 and the filter disc B44 can filter air entering the engine intake pipe 1, meanwhile, the arrangement of the filter disc A43, the filter disc B44 and the concentric cylinders 46 can reduce the air flow rate and disperse the air flow, so that the air noise can be reduced, the movable sleeve 41 can be taken out of the connecting pipe 3 by rotating the movable sleeve 41, then the filter disc A43, the filter disc B44 and the concentric cylinders 46 can be taken out of the movable sleeve 41, and then the connecting ring 47 at the end part of the filter disc B44 is separated from the concentric cylinders 46 by rotating the filter disc B44, so that the filter disc B44 can be detached, so that the filter disc A43, the filter disc B44 and the concentric cylinders 46 can be cleaned and recycled;

the concentric cylinders 46 and the movable sleeve 41 are made of sound insulation materials, and sound insulation and noise reduction effects are better through the arrangement;

sealing gaskets 11 are arranged between the engine air inlet pipe 1 and the connecting disc 2, the sealing gaskets 11 are made of rubber, and the connecting disc 2 and the engine air inlet pipe 1 can be tightly attached through the sealing gaskets 11 made of rubber, so that air inlet is facilitated;

the connecting mechanism comprises a threaded sleeve 5, the threaded sleeve 5 is screwed on the outer side of the connecting pipe 3, the upper end of the threaded sleeve 5 is provided with a rotating handle A6, the lower end of the threaded sleeve 5 is provided with a limiting ring 7, and the thread bushing 5 is provided with an annular groove matched with the limit ring 7, both sides of the limit ring 7 are provided with L-shaped positioning frames 8, both sides of the connecting disc 2 are provided with limit cutting sleeves 10, the L-shaped positioning frames 8 are movably arranged in the limiting clamping sleeve 10, the two L-shaped positioning frames 8 are both provided with positioning mechanisms 9, an engine air inlet pipe 1 is arranged between the two positioning mechanisms 9, the connecting disc 2 and the connecting pipe 3 can be fixedly arranged on the air inlet pipe 1 of the engine through the positioning mechanisms 9 on the two L-shaped positioning frames 8, then the threaded sleeve 5 is rotated, so that the threaded sleeve 5 drives the connecting disc 2 to move up and down between the two L-shaped positioning frames 8, and the connecting disc 2 is tightly connected with the end part of the engine air inlet pipe 1;

positioning mechanism 9 includes threaded rod 91, be equipped with threaded rod 91 on the L shape locating rack 8, the one end of threaded rod 91 is equipped with rotation handle B92, the tip of threaded rod 91 is equipped with arc locating plate 93, be equipped with connector 94 on the arc locating plate 93, be equipped with bearing 95 on the connector 94, and bearing 95 rotates connecting threaded rod 91, it is rotatory to drive threaded rod 91 through rotating handle B92, make threaded rod 91 drive arc locating plate 93 and the lateral wall contact of engine intake pipe 1, then through the setting of connector 94 cooperation bearing 95, make threaded rod 91 rotate and set up on arc locating plate 93, consequently connection pad 2 and connecting pipe 3 can carry out fixed connection through two positioning mechanism 9 and the both sides of engine intake pipe 1.

The working principle of the utility model is that the threaded rod 91 is driven to rotate by the rotating handle B92, so that the threaded rod 91 drives the arc-shaped positioning plate 93 to contact with the outer side wall of the engine air inlet pipe 1, then the threaded rod 91 is rotatably arranged on the arc-shaped positioning plate 93 by the matching of the connecting head 94 and the bearing 95, therefore, the connecting disc 2 and the connecting pipe 3 can be fixedly connected with the two sides of the engine air inlet pipe 1 through the two positioning mechanisms 9, then the connecting disc 2 is driven to move up and down between the two L-shaped positioning frames 8 by the rotating threaded sleeve 5, so that the connecting disc 2 is tightly connected with the end part of the engine air inlet pipe 1, the connecting disc 2 is more tightly connected with the engine air inlet pipe 1 through the sealing gasket 11 made of rubber, and then the filter disc A43, the filter disc B44 and a plurality of concentric cylinders 46 can be placed in the movable sleeve 41 through the arrangement of the positioning ring 42, the movable sleeve 41 is arranged in the connecting pipe 3 in a threaded connection mode, so that the filter disc A43 and the filter disc B44 can filter air entering the engine intake pipe 1, meanwhile, the arrangement of the filter disc A43, the filter disc B44 and the concentric cylinders 46 can reduce air flow rate and disperse air flow, so that air noise can be reduced, the movable sleeve 41 can be taken out of the connecting pipe 3 by rotating the movable sleeve 41, then the filter disc A43, the filter disc B44 and the concentric cylinders 46 can be taken out of the movable sleeve 41, and then the connecting ring 47 at the end part of the filter disc B44 is separated from the concentric cylinders 46 by rotating the filter disc B44, so that the filter disc B44 can be detached, so that the filter disc A43, the filter disc B44 and the concentric cylinders 46 can be cleaned and recycled.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims (5)

1. The utility model provides a device of making an uproar falls of boats and ships engine, includes engine intake pipe (1) and connection pad (2), its characterized in that, one side of connection pad (2) is equipped with connecting pipe (3), connecting pipe (3) pass through coupling mechanism and connect engine intake pipe (1), be equipped with in connecting pipe (3) and fall mechanism of making an uproar (4), fall mechanism of making an uproar (4) and include movable sleeve (41), the outside of movable sleeve (41) passes through threaded connection with the inboard of connecting pipe (3), the bottom of movable sleeve (41) is equipped with holding ring (42), be equipped with filter disc A (43) in movable sleeve (41), one side of filter disc A (43) is equipped with a plurality of concentric drums (46), and is a plurality of the side of concentric drum (46) is equipped with filter disc B (44), one side of filter disc B (44) is equipped with go-between (47), and the connecting ring (47) is connected with the concentric cylinder (46) through threads, and the filter disc A (43) and the filter disc B (44) are both provided with vent holes (45) which are uniformly arranged.

2. The marine engine noise reduction device according to claim 1, wherein the plurality of concentric cylinders (46) and the movable sleeve (41) are made of sound insulating material.

3. The noise reduction device of the ship engine according to claim 1, characterized in that a sealing gasket (11) is arranged between the engine intake pipe (1) and the connecting plate (2), and the sealing gasket (11) is made of rubber.

4. The noise reduction device for the ship engine according to any one of claims 1 to 3, wherein the connecting mechanism comprises a threaded sleeve (5), the threaded sleeve (5) is screwed on the outer side of the connecting pipe (3), a rotating handle A (6) is arranged at the upper end of the threaded sleeve (5), a limiting ring (7) is arranged at the lower end of the threaded sleeve (5), an annular groove matched with the limiting ring (7) is formed in the threaded sleeve (5), L-shaped positioning frames (8) are arranged on two sides of the limiting ring (7), limiting clamping sleeves (10) are arranged on two sides of the connecting disc (2), the L-shaped positioning frames (8) are movably arranged in the limiting clamping sleeves (10), positioning mechanisms (9) are arranged on two L-shaped positioning frames (8), and an engine air inlet pipe (1) is arranged between the two positioning mechanisms (9).

5. The noise reduction device of the ship engine according to claim 4, wherein the positioning mechanism (9) comprises a threaded rod (91), the L-shaped positioning frame (8) is provided with the threaded rod (91), one end of the threaded rod (91) is provided with a rotating handle B (92), the end of the threaded rod (91) is provided with an arc positioning plate (93), the arc positioning plate (93) is provided with a connector (94), the connector (94) is provided with a bearing (95), and the bearing (95) is rotatably connected with the threaded rod (91).

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