CN213117472U

CN213117472U - Stern shaft with good sealing effect

Info

Publication number: CN213117472U
Application number: CN202021854905.2U
Authority: CN
Inventors: 张鑫
Original assignee: Dalian Jinzhou Gold Titanium Forging Plant
Current assignee: Dalian Jinzhou Gold Titanium Forging Plant
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-05-04
Anticipated expiration: 2030-08-31

Abstract

The utility model discloses a sealed effectual stern axle, including the stern axle body, the surface cover of stern axle body is equipped with sealing sleeve, sealing sleeve's upper surface has been seted up and has been aerifyd the groove, the inner wall fixedly connected with charging connector who aerifys the groove, the standing groove has been seted up to sealing sleeve's inner wall, the inside of standing groove is equipped with the vacuum seal circle. This sealed effectual stern axle, threaded rod through setting up, can utilize threaded connection between threaded rod and the screw hole, it is close to and fastens each other with the ring flange to drive sealed sleeve, and then drive sealed neck ring and remove, get into the inside of second seal groove, realize the primary seal of stern axle body, through the charging connector that sets up, utilize the charging connector to aerify vacuum seal circle, make the increase of vacuum seal circle volume, extrude the inside of filling entering first seal groove to the stern axle body, the realization is to the secondary seal of stern axle body, effectively increase the sealed effect of stern axle body, the use of the boats and ships of being convenient for.

Description

Stern shaft with good sealing effect

Technical Field

The utility model relates to a sealed technical field specifically is a sealed effectual stern axle.

Background

The sealing is a part or measure for preventing fluid or solid particles from leaking from adjacent joint surfaces and preventing external impurities such as dust, moisture and the like from invading the interior of machine equipment; the static seal refers to a seal which tightly seals a sealed container of a sealed cabin and is used for sealing letters and will orders, the function of a stern shaft is particularly important in the construction of ships, the stern shaft is often required to be sealed in the use of the stern shaft, the pollution of seawater caused by the fact that hydraulic oil in the stern shaft enters the seawater is avoided, the existing stern shaft sealing device is complex in structure and inconvenient for workers to detach and maintain, troubles are brought to the maintenance of the workers, and therefore the stern shaft with a good sealing effect is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sealed effectual stern axle to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a stern shaft with good sealing effect comprises a stern shaft body, wherein a sealing sleeve is sleeved on the outer surface of the stern shaft body, an inflation groove is formed in the upper surface of the sealing sleeve, an inflation nozzle is fixedly connected to the inner wall of the inflation groove, a placement groove is formed in the inner wall of the sealing sleeve, a vacuum sealing ring is arranged inside the placement groove, the bottom end of the inflation nozzle is fixedly communicated with the upper surface of the vacuum sealing ring, a first sealing groove matched with the vacuum sealing ring is formed in the outer surface of the stern shaft body, the vacuum sealing ring is clamped with the first sealing groove, a group of threaded holes are formed in the right side surface of the sealing sleeve, a sealing collar is fixedly embedded in the right side surface of the sealing sleeve, a flange plate is fixedly connected to the outer surface of the stern shaft body, a group of fixing holes are formed in the right side surface of the flange plate, a group of threaded rods matched with, every the left end of threaded rod all runs through the fixed orifices and with screw hole threaded connection, the left surface of ring flange is seted up with the second seal groove of sealed neck ring looks adaptation, the left end fixedly connected with helical blade of stern axle body.

Preferably, a water diversion probe is arranged on the left side of the spiral blade, and the right end of the water diversion probe is fixedly connected with the left end of the spiral blade.

Preferably, a waterproof plug is arranged above the sealing sleeve, and the outer surface of the waterproof plug is clamped with the inner wall of the inflation groove.

Preferably, every the right side of threaded rod all is equipped with the fastening carousel, every the left surface of fastening carousel all with the right-hand member fixed connection of threaded rod.

Preferably, the outer surface of each threaded rod is fixedly connected with a fastening pad, and the right side surface of each fastening pad is fixedly connected with the left side surface of the fastening turntable.

Preferably, the outer surface of the stern shaft body is fixedly connected with a fixing ring, and the left side face of the fixing ring is fixedly connected with the right side face of the flange plate.

Advantageous effects

The utility model discloses possess following beneficial effect: this sealed effectual stern axle, through the threaded rod that sets up, can utilize threaded connection between threaded rod and the screw hole, it is close to and fastens each other with the ring flange to drive sealed sleeve, and then drive sealed neck ring and remove, get into the inside of second seal groove, realize the primary seal of stern axle body, through the charging connector that sets up, can utilize the charging connector to inflate vacuum seal circle, make vacuum seal circle volume increase, extrude the inside of filling entering first seal groove to the stern axle body, realize the secondary seal to the stern axle body, effectively increase the sealed effect of stern axle body, the use of the boats and ships of being convenient for.

Drawings

Fig. 1 is a schematic perspective view of a stern shaft body according to the present invention;

fig. 2 is a cross-sectional view of a front view of a stern shaft body of the present invention;

fig. 3 is a front view of the stern shaft body of the present invention;

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 2 according to the present invention;

fig. 5 is an enlarged schematic view of the structure at B in fig. 2 according to the present invention.

In the figure: 1. a stern shaft body; 2. a helical blade; 3. a water diversion probe; 4. a placement groove; 5. a first seal groove; 6. a threaded hole; 7. a threaded rod; 8. fastening the rotary table; 9. a fixing ring; 10. a flange plate; 11. a sealing sleeve; 12. a waterproof plug; 13. a sealing collar; 14. a fastening pad; 15. a vacuum seal ring; 16. an air charging nozzle; 17. an inflation groove; 18. a second seal groove; 19. and (7) fixing holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a stern shaft with good sealing effect comprises a stern shaft body 1, a sealing sleeve 11 is sleeved on the outer surface of the stern shaft body 1, an inflation groove 17 is formed in the upper surface of the sealing sleeve 11, an inflation nozzle 16 is fixedly connected to the inner wall of the inflation groove 17, a placing groove 4 is formed in the inner wall of the sealing sleeve 11, a vacuum sealing ring 15 is arranged inside the placing groove 4, the bottom end of the inflation nozzle 16 is fixedly communicated with the upper surface of the vacuum sealing ring 15, a first sealing groove 5 matched with the vacuum sealing ring 15 is formed in the outer surface of the stern shaft body 1, the vacuum sealing ring 15 is clamped with the first sealing groove 5, a group of threaded holes 6 are formed in the right side surface of the sealing sleeve 11, a sealing collar 13 is fixedly embedded in the right side surface of the sealing sleeve 11, a flange plate 10 is fixedly connected to the outer surface of the stern shaft body 1, a group of fixing holes 19 are formed in the right side surface of the flange, the left end of each threaded rod 7 penetrates through the fixing hole 19 and is in threaded connection with the threaded hole 6, the left side face of the flange plate 10 is provided with a second sealing groove 18 matched with the sealing collar 13, and the left end of the stern shaft body 1 is fixedly connected with a helical blade 2.

The left side of helical blade 2 is equipped with the probe 3 that divides water, and the right-hand member of the probe 3 that divides water and helical blade 2's left end fixed connection, resistance that can effectual reduction sea water, the rotation of the helical blade 2 of being convenient for, the top of sealing sleeve 11 is equipped with waterproof end cap 12, and waterproof end cap 12's surface and inflation tank 17's inner wall joint can seal up waterproof to inflation tank 17, avoids the sea water to get into inflation tank 17's inside, causes the damage of charging connector 16.

The right side of every threaded rod 7 all is equipped with fastening carousel 8, the left surface of every fastening carousel 8 all with the right-hand member fixed connection of threaded rod 7, can make the easier rotation threaded rod 7 of staff, the staff's of being convenient for work, the equal fixedly connected with fastening pad 14 of surface of every threaded rod 7, the right flank of every fastening pad 14 all with fastening carousel 8's left surface fixed connection, can protect fastening carousel 8 and increase fastening carousel 8's fastness, the solid fixed ring 9 of outer fixed surface of stern axle body 1, the left surface of solid fixed ring 9 and the right flank fixed connection of ring flange 10. The flange 10 can be fixed, and the stability of the flange 10 is improved.

It should be noted that the present invention is a stern shaft with good sealing effect, when in use, the sealing sleeve 11 is firstly sleeved on the stern shaft body 1, then the sealing sleeve 11 is moved to the left side of the flange plate 10 and is abutted, then the threaded rod 7 is passed through the fixing hole 19 and the fastening rotary disc 8 is rotated to rotate the threaded rod 7 into the threaded hole 6, and by means of the threaded connection between the threaded hole 6 and the threaded rod 7, the sealing sleeve 11 is moved to the right, thereby driving the sealing collar 13 to move rightwards, entering the inside of the second sealing groove 18 and being compressed, realizing the primary sealing of the stern shaft body 1, and then the waterproof plug 12 is opened to inflate the vacuum sealing ring 15 through the inflating nozzle 16, so that the volume of the vacuum sealing ring 15 is increased to extrude the inner wall of the sealing sleeve 11, further the inside of the first sealing groove 5 is extruded, the secondary sealing of the stern shaft body 1 is realized, and the sealing effect of the stern shaft body 1 is better.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a sealed effectual stern axle, includes stern axle body (1), its characterized in that: the outer surface cover of stern axle body (1) is equipped with sealing sleeve (11), inflation groove (17) have been seted up to the upper surface of sealing sleeve (11), the inner wall fixedly connected with charging connector (16) of inflation groove (17), standing groove (4) have been seted up to the inner wall of sealing sleeve (11), the inside of standing groove (4) is equipped with vacuum seal circle (15), the bottom of charging connector (16) and the last fixed surface intercommunication of vacuum seal circle (15), the surface of stern axle body (1) is seted up first seal groove (5) with vacuum seal circle (15) looks adaptation, vacuum seal circle (15) and first seal groove (5) looks joint, a set of screw hole (6) have been seted up to the right flank of sealing sleeve (11), the right flank fixed the inlaying of sealing sleeve (11) has sealed neck ring (13), the outer fixed surface of stern axle body (1) is connected with stern ring flange (10), a set of fixed orifices (19) have been seted up to the right flank of ring flange (10), the right side of ring flange (10) is equipped with a set of threaded rod (7) with screw hole (6) looks adaptation, every the left end of threaded rod (7) all runs through fixed orifices (19) and with screw hole (6) threaded connection, second seal groove (18) with sealed neck ring (13) looks adaptation are seted up to the left flank of ring flange (10), the left end fixedly connected with helical blade (2) of stern shaft body (1).

2. The stern shaft with good sealing effect as claimed in claim 1, wherein: the left side of helical blade (2) is equipped with water diversion probe (3), the right-hand member of water diversion probe (3) and the left end fixed connection of helical blade (2).

3. The stern shaft with good sealing effect as claimed in claim 1, wherein: and a waterproof plug (12) is arranged above the sealing sleeve (11), and the outer surface of the waterproof plug (12) is clamped with the inner wall of the inflation groove (17).

4. The stern shaft with good sealing effect as claimed in claim 1, wherein: every the right side of threaded rod (7) all is equipped with fastening carousel (8), every the left surface of fastening carousel (8) all with the right-hand member fixed connection of threaded rod (7).

5. The stern shaft with good sealing effect as claimed in claim 1, wherein: every the equal fixedly connected with fastening pad (14) of surface of threaded rod (7), every the right flank of fastening pad (14) all with the left surface fixed connection of fastening carousel (8).

6. The stern shaft with good sealing effect as claimed in claim 1, wherein: the outer fixed surface of stern axle body (1) is connected with solid fixed ring (9), the left surface of solid fixed ring (9) and the right flank fixed connection of ring flange (10).