CN211449479U

CN211449479U - Damping device of transformer for boats and ships

Info

Publication number: CN211449479U
Application number: CN201922339647.8U
Authority: CN
Inventors: 孙亮; 刁成德
Original assignee: Dalian Shunze Marine Electrical Engineering Co ltd
Current assignee: Dalian Shunze Marine Electrical Engineering Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-09-08
Anticipated expiration: 2029-12-24

Abstract

The utility model discloses a damping device of a ship transformer, which comprises a bottom plate fixed on a deck through bolts, wherein a mounting plate for mounting a transformer box is connected above the bottom plate through a plurality of damping device supports; the damping device comprises a sleeve, an inner pipe is arranged at the lower part of a cavity in the sleeve, and the inner pipe divides the lower part of the cavity into an inner area and an outer area; the bottom end of the inner pipe is connected with the inner bottom of the sleeve through a check valve, and the check valve is a valve which is communicated with the inner area from the outer area in a one-way mode; a plurality of oil return holes are distributed on the side wall of the inner pipe; a piston is arranged in the inner pipe close to the inner wall of the inner pipe, and the lower surface of the piston is connected with the check valve through a buffer spring; the upper surface of the piston is connected with a piston rod, the top end of the piston rod extends out of the sleeve and is connected with a connecting block, and the connecting block is connected with the mounting plate; the lower part of the cavity is filled with hydraulic oil. Compared with the prior art, the utility model the advantage lies in: simple structure, reasonable design and good damping effect.

Description

Damping device of transformer for boats and ships

Technical Field

The utility model relates to a accessory technical field is used to boats and ships, specifically indicates a damping device of transformer for boats and ships.

Background

The transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, and the main components are a primary coil, a secondary coil and an iron core (magnetic core). Along with the application of boats and ships maximization and electric propulsion, the transformer situation of boats and ships electrical system has taken place very big change, marine transformer base can not the direct mount on the cabin bottom plate, because when boats and ships when marine navigation, with the transformer direct mount on the cabin bottom plate, the transformer can bear great impact, can make the transformer appear rocking even, current transformer does not install damping device, can produce great noise, vibrations can make spare part connect not hard up, influence joint strength, thereby cause unnecessary harm, reduce the life of transformer.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome above technical problem, provide a compact structure, reasonable in design, shock attenuation effectual a damping device of transformer for boats and ships.

In order to solve the technical problem, the utility model provides a technical scheme does:

a damping device of a transformer for a ship comprises a bottom plate fixed on a deck through bolts, wherein a mounting plate for mounting a transformer box is connected above the bottom plate through a plurality of damping devices in a supporting manner;

the damping device comprises a sleeve, an inner pipe is arranged at the lower part of a cavity in the sleeve, and the inner pipe divides the lower part of the cavity into an inner area and an outer area; the bottom end of the inner pipe is connected with the inner bottom of the sleeve through a check valve, and the check valve is a valve which is communicated with the inner area from the outer area in a one-way mode; a plurality of oil return holes are distributed on the side wall of the inner pipe;

a piston is arranged in the inner pipe close to the inner wall of the inner pipe, and the lower surface of the piston is connected with the check valve through a buffer spring; the upper surface of the piston is connected with a piston rod, the top end of the piston rod extends out of the sleeve and is connected with a connecting block, and the connecting block is connected with the mounting plate;

the lower part of the cavity is filled with hydraulic oil.

The top of the sleeve is sealed by a limiting plate, and the piston rod penetrates through the limiting plate.

The upper part of the cavity is provided with an oil seal, and the lower part of the oil seal is connected with a dustproof sleeve.

A bearing and a pressure-accumulating sponge which are sleeved on the piston rod are arranged in the cavity.

The bearing is a thrust sliding bearing.

A silencing sleeve is arranged between the connecting block and the mounting plate and is sleeved on the mounting plate.

After the structure more than adopting, the utility model has the advantages of it is following: the utility model discloses novel structure, reasonable in design, compact structure, the check valve is called silence check valve again, mean to rely on medium self to flow and open automatically, close the valve clack, can be used for preventing medium from flowing back to the valve, this kind of valve is automatic working usually, under the fluid pressure effect that a direction flows, the valve clack is opened, when the fluid flows in the opposite direction, by fluid pressure and the dead weight of valve clack close the valve clack and act on the disk seat, thereby cut off flow, it is more convenient to use, the setting of oil gallery can make hydraulic oil flow to the opposite side of inner tube from one side of inner tube, make the friction between pore wall and hydraulic oil and the internal friction between the hydraulic oil fluid molecule form the damping force to the piston that reciprocates, make the vibration energy who produces change into fluid heat energy, in passing through the sleeve and spreading to the atmosphere again, reduce the harm to the internal part of damping device, increase, the damping device of the transformer for the ship has the advantages that the damping spring is arranged to further buffer vibration, so that the damping effect of the damping device of the transformer for the ship is better.

The limiting plate can limit the motion track of the piston, so that the damping device of the transformer for the ship is safer to use, the piston cannot be separated from the cavity, and the damping effect is better.

The setting of oil blanket can improve equipment's leakproofness, prevents that hydraulic oil from spilling over, and the leakproofness of device is further strengthened in the setting of dirt proof boot, prevents that the dust from getting into inside the sleeve, has improved marine transformer's damping device's life.

The bearing and the pressure accumulation sponge are sleeved on the piston rod, the piston rod can move more smoothly due to the arrangement of the bearing, the arrangement of the pressure accumulation sponge can absorb sound and reduce noise, the piston rod can be protected, the vibration of the piston rod is buffered, and the buffering effect of the damping device of the transformer for the ship is improved.

The bearing is a thrust sliding bearing, and an oil film on the thrust sliding bearing has certain needle suction capacity while the axial movement of the piston rod is ensured, so that the damping effect of the damping device of the transformer for the ship can be improved.

The noise that vibrations produced can be reduced in the setting of amortization cover, avoids producing great noise pollution.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a damping device of a transformer for a ship according to the present invention.

Fig. 2 is a schematic structural diagram of a damping device in the damping device of the transformer for the ship of the present invention.

As shown in the figure: 1. the damping device comprises a bottom plate, 2, bolts, 3, a deck, 4, a damping device, 5, a mounting plate, 6, a transformer box, 7, a sleeve, 8, a cavity, 9, a check valve, 10, an inner pipe, 11, hydraulic oil, 12, an oil return hole, 13, a buffer spring, 14, a piston, 15, a piston rod, 16, a connecting block, 17, a limiting plate, 18, an oil seal, 19, a dustproof sleeve, 20, a bearing, 21, a pressure storage sponge, 22 and a silencing sleeve.

Detailed Description

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "center", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a specific orientation configuration and operation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it should be further noted that, unless otherwise explicitly stated or limited, the terms "provided", "mounted", "connected", and the like are to be understood in a broad sense, and for example, they may be fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or connected to the inside of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The present invention will be described in further detail with reference to the accompanying drawings.

With reference to the attached drawings 1-2, the damping device of the transformer for the ship comprises a bottom plate 1 fixed on a deck 3 through bolts 2, and a mounting plate 5 for mounting a transformer box 6 is supported and connected above the bottom plate 1 through a plurality of damping devices 4;

the damping device 4 comprises a sleeve 7, an inner pipe 10 is arranged at the lower part of a cavity 8 in the sleeve 7, and the inner pipe 10 divides the lower part of the cavity 8 into an inner area and an outer area; the bottom end of the inner pipe 10 is connected with the bottom in the sleeve 7 through a check valve 9, and the check valve 9 is a valve which is communicated with the inner area from the outer area in a one-way mode; a plurality of oil return holes 12 are distributed on the side wall of the inner pipe 10;

a piston 14 is arranged in the inner pipe 10 and clings to the inner wall of the inner pipe 10, and the lower surface of the piston 14 is connected with the check valve 9 through a buffer spring 13; the upper surface of the piston 14 is connected to a piston rod 15, the top end of the piston rod 15 extends out of the sleeve 7 and is connected to a connecting block 16, and the connecting block 16 is connected to the mounting plate 5;

the lower part of the cavity 8 is filled with hydraulic oil 11.

The top of the sleeve 7 is sealed by a limit plate 17, and the piston rod 15 passes through the limit plate 17.

An oil seal 18 is arranged at the upper part of the cavity 8, and a dustproof sleeve 19 is connected below the oil seal 18.

A bearing 20 and a pressure storage sponge 21 sleeved on the piston rod 15 are arranged in the cavity 8.

The bearing 20 is a thrust sliding bearing.

A silencing sleeve 22 is arranged between the connecting block 16 and the mounting plate 5, and the silencing sleeve 22 is sleeved on the mounting plate 5.

The utility model discloses when concrete implementation, when transformer box 6 produces vibrations, 5 downstream of mounting panel, extrude damping device 4, connecting block 16 drives piston rod 15 downstream, piston 14 reciprocates in inner tube 10, make the interior outside round trip flow of oil gallery 12 to inner tube 10 of hydraulic oil 11 in the inner tube 10 on through inner tube 10, friction between pore wall and hydraulic oil 11 and the internal friction between hydraulic oil 11 fluid molecules form damping force to the piston 14 who reciprocates, the vibrations energy conversion who produces is fluid heat energy, in the atmosphere is gived off to sleeve 7 again, reduce the harm to 4 internals of damping device, increase the damping device's of transformer for boats and ships life.

Piston 14 extrudees buffer spring 13 downwards, and buffer spring 13 upwards promotes piston 14 under the effect of the elasticity, can further cushion vibrations, makes marine transformer's damping device's shock attenuation effect better. When the piston 14 moves upwards, hydraulic oil 11 can enter the inner pipe 10 through the check valve, so that the periodic movement of the piston 14 is realized.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. The utility model provides a damping device of transformer for boats and ships which characterized in that: the transformer box comprises a bottom plate (1) fixed on a deck (3) through bolts (2), wherein a mounting plate (5) used for mounting a transformer box (6) is connected above the bottom plate (1) in a supporting mode through a plurality of damping devices (4);

the damping device (4) comprises a sleeve (7), an inner pipe (10) is arranged at the lower part of a cavity (8) in the sleeve (7), and the inner pipe (10) divides the lower part of the cavity (8) into an inner area and an outer area; the bottom end of the inner pipe (10) is connected with the inner bottom of the sleeve (7) through a check valve (9), and the check valve (9) is a valve which is communicated with the inner area in a one-way mode from the outer area; a plurality of oil return holes (12) are distributed on the side wall of the inner pipe (10);

a piston (14) is arranged in the inner pipe (10) and clings to the inner wall of the inner pipe (10), and the lower surface of the piston (14) is connected with the check valve (9) through a buffer spring (13); the upper surface of the piston (14) is connected to a piston rod (15), the top end of the piston rod (15) extends out of the sleeve (7) and is connected to a connecting block (16), and the connecting block (16) is connected to the mounting plate (5);

and hydraulic oil (11) is injected into the lower part of the cavity (8).

2. The damping device for a marine transformer according to claim 1, wherein: the top of the sleeve (7) is sealed through a limiting plate (17), and the piston rod (15) penetrates through the limiting plate (17).

3. The damping device for a marine transformer according to claim 1, wherein: an oil seal (18) is arranged at the upper part of the cavity (8), and a dustproof sleeve (19) is connected below the oil seal (18).

4. The damping device for a marine transformer according to claim 1, wherein: and a bearing (20) and a pressure storage sponge (21) which are sleeved on the piston rod (15) are arranged in the cavity (8).

5. The damping device for a marine transformer according to claim 4, wherein: the bearing (20) is a thrust sliding bearing.

6. The damping device for a marine transformer according to claim 1, wherein: connecting block (16) with be provided with amortization cover (22) between mounting panel (5), amortization cover (22) cup joint in mounting panel (5).