CN112298514B

CN112298514B - Marine diesel engine bearing structure

Info

Publication number: CN112298514B
Application number: CN202011161652.5A
Authority: CN
Inventors: 齐勇; 单伟峰; 邓先锋; 李寅; 查正玲
Original assignee: Anqing CSSC Diesel Engine Co Ltd
Current assignee: Anqing CSSC Diesel Engine Co Ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2022-09-06
Anticipated expiration: 2040-10-27
Also published as: CN112298514A

Abstract

The invention discloses a supporting structure of a marine diesel engine, which comprises a base, wherein a first groove is formed on the top surface of the base, a supporting plate is arranged in the first groove, a gap is kept between the edge of the supporting plate and the wall of the first groove, an elastic membrane is arranged in the gap, the inner side of the elastic membrane is connected with the edge of the supporting plate, the outer side of the elastic membrane is connected with the edge of the first groove, the elastic membrane and the supporting plate completely seal the notch of the first groove, and a buffer solution is filled in a sealing space. Backup pad and base separate completely among this bearing structure, and adopt buffer solution to separate between backup pad and the base and support, and seal up with the elastic membrane, the diesel engine is fixed back in the backup pad, arbitrary direction vibrations homoenergetic that the diesel engine produced is absorbed by buffer solution, and buffer solution can produce the random disturbance of wholeness when receiving the vibrations, the vibrations energy is by mutual loss in inside, thereby can furthest's reduction to the hull and the negative effects that the crew caused.

Description

Marine diesel engine bearing structure

Technical Field

The invention relates to the technical field of marine diesel engines, in particular to a marine diesel engine supporting structure.

Background

A marine diesel engine, a full name marine diesel engine, is an engine which obtains energy by burning diesel oil and converts chemical energy into mechanical energy, and the engine is an active power device of the current ship. The specific working principle of the marine diesel engine is as follows: the combustion gas is arranged in the cylinder for combustion, and then the reciprocating motion of the piston is driven through the change of the air pressure in the cylinder, so that the propeller in the ship is driven to move, and the purpose of driving the ship is achieved. In the working process of the marine diesel engine, the combustion of gas in the cylinder and the driving of the piston can cause the marine diesel engine to vibrate strongly, so that the vibration not only can influence the living and living of workers, but also can bring great negative influence on the whole service life of the ship.

Disclosure of Invention

The invention aims to provide a marine diesel engine supporting structure, which solves the problem that strong vibration generated when a diesel engine works affects a ship and personnel on the ship.

The invention achieves the above purpose through the following technical scheme:

the utility model provides a marine diesel supporting structure, includes the base, the base top surface is formed with first recess, the backup pad has been placed in the first recess, the edge of backup pad all keeps gapped with the cell wall of first recess, and is equipped with the elastic membrane in the clearance, the elastic membrane inboard is connected with the backup pad edge, and the outside is connected with first recess groove edge, and the elastic membrane is sealed first recess notch completely with the backup pad, and is filled with buffer solution in the confined space.

The further improvement is that the top surface of the supporting plate is provided with a second groove for placing the marine diesel engine.

The further improvement is that at least two layers of reinforcing nets are laid inside the elastic film.

The further improvement lies in that the reinforcing net is composed of steel wire rings arranged in a matrix, and the steel wire rings which are adjacent in the transverse direction and the longitudinal direction are movably sleeved.

In a further improvement, the steel wire ring is rhombic or circular.

The further improvement is that the bottom of the supporting plate is provided with a plurality of spoilers, and the spoilers are irregularly distributed in position and direction.

The further improvement is that the buffer adopts engine oil with the viscosity of more than 500 cP.

The marine diesel engine supporting structure further comprises a bottom plate, a rotating seat and a driving motor, wherein the rotating seat and the driving motor are arranged on the bottom plate, the base is arranged on the rotating seat, a ring of gear bars are arranged on the bottom surface of the base, and the output end of the driving motor is connected with the gear bars.

The invention has the beneficial effects that: backup pad and base separate completely among this bearing structure, and adopt buffer solution to separate between backup pad and the base and support, and seal up with the elastic membrane, the diesel engine is fixed back in the backup pad, arbitrary direction vibrations homoenergetic that the diesel engine produced is absorbed by buffer solution, and buffer solution can produce the random disturbance of wholeness when receiving the vibrations, the vibrations energy is by mutual loss in inside, thereby can furthest's reduction to the hull and the negative effects that the crew caused.

Drawings

FIG. 1 is a vertical cross-sectional view of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a cross-sectional view of an elastic membrane;

FIG. 4 is a schematic view of a reinforcing mesh in different configurations, wherein a is a diamond shape and b is a circular shape;

in the figure: 1. a base; 2. a first groove; 3. a support plate; 4. an elastic film; 401. a reinforcing mesh; 5. a second groove; 6. a spoiler; 7. a base plate; 8. a rotating base; 9. a drive motor; 10. a gear rack.

Detailed Description

The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.

Referring to fig. 1 to 4, a marine diesel engine supporting structure includes a base 1, a first groove 2 is formed on a top surface of the base 1, a supporting plate 3 is placed in the first groove 2, gaps are maintained between edges of the supporting plate 3 and groove walls of the first groove 2, the width of each gap is generally 10-15cm, an elastic membrane 4 is arranged in each gap, the inner side of each elastic membrane 4 is connected with the edge of the supporting plate 3, the outer side of each elastic membrane is connected with the groove edge of the first groove 2, when the elastic membranes 4 are connected, high-strength press fit connection is required, sealing is performed by using a sealant, tensile strength and sealing performance are ensured, the notches of the first grooves 2 are completely sealed by the elastic membranes 4 and the supporting plate 3, and a buffer solution is filled in a sealed space.

The diesel engine is fixed back in backup pad 3, the random direction vibrations homoenergetic that the diesel engine produced is absorbed by buffer solution, and buffer solution can produce the random disturbance of wholeness when receiving the vibrations, rather than in certain runner, perhaps flow towards certain fixed direction, the energy that consequently vibrations produced can be by mutual loss in buffer solution inside, and when transmitting the cell wall department of first recess 2, the energy is very little, and flow rate is by a wide margin decline, consequently can furthest's reduction to the hull and the negative effects that the crew caused.

In the invention, the top surface of the supporting plate 3 is provided with the second groove 5 for placing the marine diesel engine, and when the diesel engine is placed, the second groove 5 can be filled with some curing agents in advance, so that the combination effect between the bottom of the diesel engine and the supporting plate 3 can be increased to form a whole, and the generation of vibration and collision on the combination surface to cause noise is avoided.

In the invention, at least two layers of reinforcing nets 401 are laid in the elastic membrane 4, the reinforcing nets 401 can increase the tensile strength of the elastic membrane 4, the reinforcing nets 401 have no elasticity, the reinforcing nets 401 are composed of steel wire rings which are arranged in a matrix manner, and the steel wire rings which are adjacent in the transverse direction and the longitudinal direction are movably sleeved, so that the reinforcing nets 401 have certain expansion and contraction performance, and the steel wire rings are rhombic or circular. The reinforcing net 401 can play a role in safety precaution, when the elastic membrane 4 stretches, the reinforcing net 401 forms a stretching maximum limit, and the phenomenon that the elastic membrane 4 is excessively stretched to cause damage to cause collision damage of a diesel engine is avoided.

In the invention, the bottom of the supporting plate 3 is provided with a plurality of spoilers 6, and the positions and the directions of the spoilers 6 are irregularly distributed. The spoiler 6 is irregularly distributed in the buffer solution, and when the backup pad 3 shakes, the spoiler 6 can shake along with the backup pad 3 in step, and every spoiler 6 can produce the disturbance to near buffer solution of self during the vibrations, and the disturbance of every spoiler 6 is anomalous, and it enables the buffer solution and forms the irregular disturbance of wholeness, consumes the vibrations energy from this.

In addition, the buffer solution adopts machine oil, lubricating oil and the like with the viscosity of more than 500cP, and compared with liquid water, the viscous buffer solution has better buffering and shock absorption effects and better machine oil stability.

In the invention, the marine diesel engine supporting structure further comprises a bottom plate 7, a rotating seat 8 and a driving motor 9, wherein the rotating seat 8 and the driving motor 9 are arranged on the bottom plate 7, the base 1 is arranged on the rotating seat 8, a ring of gear bars 10 are arranged on the bottom surface of the base 1, and the output end of the driving motor 9 is connected with the gear bars 10. After the diesel engine is well supported, when the diesel engine placing angle needs to be adjusted, the diesel engine is heavy, and manual adjustment cannot be completed, so that the base 1 can be driven to rotate by using the rotating seat 8 as a support through starting the driving motor 9.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. The utility model provides a marine diesel engine bearing structure, includes base (1), its characterized in that: a first groove (2) is formed in the top surface of the base (1), a supporting plate (3) is placed in the first groove (2), a gap is reserved between the edge of the supporting plate (3) and the wall of the first groove (2), an elastic membrane (4) is arranged in the gap, the inner side of the elastic membrane (4) is connected with the edge of the supporting plate (3), the outer side of the elastic membrane is connected with the groove edge of the first groove (2), the elastic membrane (4) and the supporting plate (3) completely seal the notch of the first groove (2), and a buffer solution is filled in the sealed space;

at least two layers of reinforcing nets (401) are laid in the elastic membrane (4), the reinforcing nets (401) are composed of steel wire rings which are arranged in a matrix manner, and the steel wire rings which are adjacent in the transverse direction and the longitudinal direction are movably sleeved;

the bottom of the supporting plate (3) is provided with a plurality of spoilers (6), and the positions and the directions of the spoilers (6) are distributed irregularly.

2. The marine diesel engine support structure according to claim 1, wherein: and a second groove (5) for placing a marine diesel engine is formed on the top surface of the support plate (3).

3. The marine diesel engine support structure according to claim 1, wherein: the steel wire ring is rhombic or circular.

4. The marine diesel engine support structure according to claim 1, wherein: the buffer solution adopts engine oil with the viscosity of more than 500 cP.

5. A marine diesel engine supporting structure according to claim 1, characterized in that: marine diesel engine bearing structure still includes bottom plate (7) and establishes roating seat (8) and driving motor (9) on bottom plate (7), on roating seat (8) was located in base (1), and was equipped with a circle rack (10) in base (1) bottom surface, the output and the rack (10) of driving motor (9) are connected.