CN114151548A

CN114151548A - Side pushes away lid seal structure

Info

Publication number: CN114151548A
Application number: CN202111530193.8A
Authority: CN
Inventors: 宋勇荣; 惠海平
Original assignee: Wuxi Dongzhou Marine Equipment Co Ltd
Current assignee: Wuxi Dongzhou Marine Equipment Co Ltd
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2022-03-08

Abstract

The invention discloses a side push cover sealing structure which comprises a side push cover body, a rotating shaft, a shaft hub, a rotating handle and a sealing seat, wherein the shaft hub is welded and fixed on a cabin wall of a ship body, the first end of the shaft hub is positioned on the inner side of the cabin wall of the ship body, the second end of the shaft hub is positioned on the outer side of the cabin wall of the ship body, the rotating shaft is arranged in the shaft hub in a penetrating mode, the inner end of the rotating shaft is fixedly connected with the rotating handle, the outer end of the rotating shaft is fixedly connected with the side push cover body, the sealing seat is fixed at the first end of the shaft hub and forms rotary sealing with the rotating shaft, an inflation sealing ring is arranged in an air gap between the shaft hub and the rotating shaft and is positioned in front of the axial direction of the sealing seat, an inflation pipe is led out of the inflation sealing ring, and when the inflation sealing ring expands, temporary sealing is formed on the air gap between the shaft hub and the rotating shaft. Above-mentioned side pushes away and covers seal structure through setting up inflatable seal, when sealed trouble, can make inflatable seal expand as interim sealed, conveniently dismantles inboard seal receptacle, realizes that boats and ships do not dock and can maintain, uses manpower sparingly, financial resources, and cost of maintenance is low.

Description

Side pushes away lid seal structure

Technical Field

The invention relates to the technical field of ship side pushing, in particular to a side pushing cover sealing structure.

Background

Most container ships and scientific research ships are provided with side thrusters, namely side thrusters in general, in order to improve the flexibility of port entry and exit. However, the lateral thrust destroys the integrity of the hull shell, and increases the water flow resistance of the ship during navigation, and increases the oil consumption of the ship. For the scientific research ship, because of the existence of the side thrust, a large amount of cavitation bubbles are generated at the tunnel in the direction of the side thrust water flow, the precision of the measured data of the scientific research ship is influenced, and the difficulty of the post-processing of the data is increased. Thus, more and more closures are added for side pushing.

The existing side push cover is generally arranged in a tunnel in the side push water flow direction, a rotating mechanism for pushing the side push cover, a rotating shaft and a sealing device are all arranged in the other cabin, when the sealing device of the side push cover breaks down, the danger of water leakage to the cabin can occur, great potential safety hazard is brought to navigation, and therefore the sealing device needs to be replaced immediately once the sealing device breaks down. However, since the rotating shaft and the rotating mechanism of the side push cover are both installed below the waterline, if the sealing device is replaced, the ship must dock, and a large amount of material resources and financial resources are wasted.

Disclosure of Invention

Based on the above, the invention aims to provide a side push cover sealing structure, which can realize maintenance and replacement of a ship without docking aiming at sealing faults, and reduce maintenance cost.

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

the utility model provides a side pushes away lid seal structure, it is including the side pushes away the lid body, the axis of rotation, the shaft hub, rotation handle and seal receptacle, shaft hub welded fastening is on the hull bulkhead, and the first end of shaft hub is located the inboard of hull bulkhead, the second end is located the outside of hull bulkhead, the axis of rotation is worn to locate in the shaft hub, and the medial extremity of axis of rotation links firmly with the rotation handle, the outside end links firmly with the side pushes away lid body, the seal receptacle is fixed in the first end of shaft hub and forms rotary seal with the axis of rotation, the axial the place ahead that just is located the seal receptacle in the air gap of shaft hub and axis of rotation is provided with inflatable seal circle, the gas tube has been drawn forth on the inflatable seal circle, when inflatable seal circle inflation, form temporary seal to the air gap of shaft hub and axis of rotation.

Particularly, the inflation tube extends out of the side wall of the shaft hub, and the tube end is provided with a tube joint for inflating, exhausting and maintaining pressure of the inflation sealing ring.

In particular, the inflatable sealing ring does not touch the rotating shaft when being contracted.

In particular, a first sliding bearing is arranged on the second end of the shaft hub, a dustproof ring is arranged on the first sliding bearing, and the dustproof ring is abutted against the surface of the rotating shaft.

In particular, a second sliding bearing is arranged in an air gap between the shaft hub and the rotating shaft and is positioned in front of the inflatable sealing ring in the axial direction, and the second sliding bearing is in interference fit with the inner wall of the shaft hub.

In particular, an O-shaped sealing ring is embedded between the outer wall of the sealing seat and the inner wall of the shaft hub.

In particular, a shaft stent is arranged between the inner wall of the seal holder and the outer wall of the rotating shaft.

In particular, a guide ring is arranged between the inner wall of the sealing seat and the outer wall of the rotating shaft.

Particularly, the rotating shaft is fixedly connected with the rotating handle through a key in a transmission way.

Particularly, the rotating shaft is fixedly connected with the side push cover body in a welding mode.

In summary, the side push cover sealing structure has the advantages that the inflatable sealing ring is arranged, when the sealing seat and the sealing ring on the sealing seat are broken down to cause the sealing performance to be reduced, the inflatable sealing ring can be expanded to be used as temporary sealing to prevent seawater from leaking into the inner cabin of the ship body, so that the sealing seat on the inner side can be conveniently detached, the sealing ring on the inner side can be replaced, the ship can be maintained without docking, the labor and the financial resources are saved, the maintenance cost is low, in addition, under the condition that the side push cover normally works, the inflatable sealing ring is in a contraction state, no friction exists between the inflatable sealing ring and the rotating shaft, and the service life of the inflatable sealing ring is long.

Drawings

FIG. 1 is a schematic view of a side push cap seal arrangement provided by an embodiment of the present invention;

fig. 2 is an enlarged view at a in fig. 1.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar parts throughout or parts having the same or similar functions. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediary, a connection between two elements, or an interaction between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature being in contact not directly but with another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Referring to fig. 1 and 2, the preferred embodiment provides a side push cover sealing structure, which includes a side push cover body 1, a rotating shaft 2, a hub 3, a rotating handle 4 and a sealing seat 5.

The hub 3 is welded and fixed to the bulkhead 16 of the hull, and the first end of the hub 3 is located inside the bulkhead 16 of the hull and the second end is located outside the bulkhead 16 of the hull.

The rotating shaft 2 penetrates through the shaft hub 3, the inner side end of the rotating shaft 2 is in transmission connection with the rotating handle 4 through a key 6, and the outer side end of the rotating shaft is fixedly connected with the side push cover body 1 in a welding mode.

Seal receptacle 5 is fixed in the first end of shaft hub 3 and forms rotary seal with axis of rotation 2 through the bolt, specifically, O type sealing washer 7 has been inlayed to the dress between the outer wall of seal receptacle 5 and the inner wall of shaft hub 3, is provided with axle between the inner wall of seal receptacle 5 and the outer wall of axis of rotation 2 and uses steckel seal 8 and guide ring 9.

The air gap of shaft hub 3 and axis of rotation 2 in and be located the axial the place ahead of seal receptacle 5 and be provided with inflatable seal ring 10, has drawn forth on the inflatable seal ring 10 and has aerifyd tub 11, when inflatable seal ring 10 inflation, forms interim sealed to the air gap of shaft hub 3 and axis of rotation 2, prevents that the sea water seepage from to installation seal receptacle 5 and slewing mechanism's cabin, can dismantle seal receptacle 5 this moment to change arbitrary sealing washer.

Wherein, the gas tube 11 extends out of the side wall of the axle hub 3 and the tube end is provided with a tube joint 12 for realizing gas filling, air suction and pressure maintaining of the gas-filled sealing ring 10. It should be noted that the inflatable sealing ring 10 does not touch the rotating shaft 2 when being contracted, so that the service life of the inflatable sealing ring 10 is prolonged.

A first sliding bearing 13 is arranged at the second end of the shaft hub 3, a dustproof ring 14 is arranged on the first sliding bearing 13, and the dustproof ring 14 is abutted against the surface of the rotating shaft 2.

A second sliding bearing 15 is arranged in the air gap between the shaft hub 3 and the rotating shaft 2 and in the axial front of the inflatable sealing ring 10, and the second sliding bearing 15 is in interference fit with the inner wall of the shaft hub 3.

In conclusion, the sealing structure of the side push cover mainly comprises the inflatable sealing ring, when the sealing seat and the sealing ring on the sealing seat are broken down to cause the reduction of the sealing performance, the inflatable sealing ring can be expanded to be used as temporary sealing to prevent seawater from leaking into an inner cabin of a ship body, so that the sealing seat on the inner side is convenient to disassemble, the sealing ring on the upper side is replaced, the ship can be maintained without docking, the manpower and financial resources are saved, the maintenance cost is low, in addition, under the condition that the side push cover normally works, the inflatable sealing ring is in a contraction state, no friction exists between the inflatable sealing ring and a rotating shaft, and the service life of the inflatable sealing ring is long.

The foregoing embodiments are merely illustrative of the principles and features of this invention, which is not limited to the above-described embodiments, but is capable of various modifications and changes without departing from the spirit and scope of the invention, which are intended to be within the scope of the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a side pushes away lid seal structure, its characterized in that pushes away lid body, axis of rotation, shaft hub, rotation handle and seal receptacle including the side, shaft hub welded fastening is on the hull bulkhead, and the first end of shaft hub is located the inboard of hull bulkhead, and the second end is located the outside of hull bulkhead, the axis of rotation is worn to locate in the shaft hub, and the medial extremity of axis of rotation with rotate the handle and link firmly, the outside end with side pushes away the lid body and links firmly, the seal receptacle is fixed in the first end of shaft hub and with the axis of rotation forms rotary seal, the shaft hub with in the air gap of axis of rotation and be located the axial the place ahead of shaft hub seal receptacle is provided with inflatable seal circle, the last gas tube of having drawn forth of inflatable seal circle, when inflatable seal circle inflation, form interim seal to the air gap of end and axis of rotation.

2. The side push cap seal structure of claim 1, wherein: the inflation tube stretches out the lateral wall and the pipe end of shaft hub are provided with the coupling for realize aerifing, bleeding and the pressurize to inflatable seal circle.

3. The side push cap seal structure of claim 1, wherein: the inflatable sealing ring does not touch the rotating shaft when being contracted.

4. The side push cap seal structure of claim 1, wherein: be provided with first slide bearing on the second end of shaft hub, be provided with the dust ring on the first slide bearing, the dust ring supports and leans on the surface in the axis of rotation.

5. The side push cap seal structure of claim 1, wherein: the shaft hub with just be located in the air gap of axis of rotation inflatable seal's axial the place ahead is provided with second slide bearing, second slide bearing with the inner wall interference fit of shaft hub.

6. The side push cap seal structure of claim 1, wherein: an O-shaped sealing ring is embedded between the outer wall of the sealing seat and the inner wall of the shaft hub.

7. The side push cap seal structure of claim 1, wherein: a shaft Stent seal is arranged between the inner wall of the sealing seat and the outer wall of the rotating shaft.

8. The side push cap seal structure of claim 1, wherein: and a guide ring is arranged between the inner wall of the sealing seat and the outer wall of the rotating shaft.

9. The side push cap seal structure of claim 1, wherein: the rotating shaft is fixedly connected with the rotating handle through a key in a transmission way.

10. The side push cap seal structure of claim 1, wherein: the rotating shaft is fixedly connected with the side push cover body in a welding mode.