CN217898767U

CN217898767U - Rudder stock sealing device

Info

Publication number: CN217898767U
Application number: CN202221234477.2U
Authority: CN
Inventors: 敖武平; 许东方; 刘爱玉
Original assignee: Zhoushan Cosco Shipping Heavy Industry Co ltd
Current assignee: Zhoushan Cosco Shipping Heavy Industry Co ltd
Priority date: 2022-05-19
Filing date: 2022-05-19
Publication date: 2022-11-25
Anticipated expiration: 2032-05-19

Abstract

The utility model provides a rudder stock sealing device, including gland and gland, the gland includes ring steel sheet, the connecting hole has been seted up to the ring steel sheet orientation, it is fixed with the on-deck hull structure connection of steering wheel storehouse through first stud, the upper end of ring steel sheet is close to the vertical welding of one side of inner circle and has a cylindric last connecting cylinder, the outside horizontal interval welding in upper end of going up the connecting cylinder has a plurality of engaging lugs, the connection screw has been seted up on the engaging lug, the gland is ring shape, set up the through-hole that corresponds with the engaging lug of gland on the gland, it is fixed with the engaging lug through second stud, be equipped with the sealing strip between the inboard of the last connecting cylinder of gland and the ring steel sheet, the inner circle of gland is unanimous with the internal diameter of last connecting cylinder, the welding of inner circle department of gland has the protruding circle that compresses tightly with the sealing strip counterbalance. The utility model has the advantages of simple and reasonable structure, simple to operate, sealed effectual is applicable to the sealing of all kinds of boats and ships steering wheel, can effectively prevent the sea water infiltration, has good operation and performance.

Description

Rudder stock sealing device

Technical Field

The utility model belongs to the technical field of boats and ships are built, a rudder system corollary equipment is related to, concretely relates to rudderstock sealing device.

Background

The rudder, which is a part of the ship apparatus subject to hydrodynamic forces to generate a turning moment, is generally installed behind the stern propeller. The rudder stock is a shaft for rotating the rudder blade and is used for bearing and transmitting rudder rotating torque, hydrodynamic force acting on the rudder blade and force of the rudder for steering the rudder device, namely the rudder blade is rotated by the rudder stock, and the rudder blade bears the reaction force of water on the rudder blade to realize steering of the ship. The rudder stock should have sufficient strength and at the same time the steering engine needs a good seal at the connection to the hull. The rudder stock sealing device is arranged for ensuring the sealing effect of the connection of the steering engine and the structure on the ship.

The existing rudder stock sealing device is in a single packing seal structure, and water leakage is easy to occur in the using process of a real ship, so that the phenomenon of rusting of a packing gland and a compression stud is caused. Chinese patent "rudder stock emergency seal device" as patent number 201320790916.2, including gland, gland screw, oil blanket, be provided with the oil blanket on the rudder stock outer lane in the inner chamber of last seal receptacle to by gland screw locking, its characterized in that: a lower sealing body is arranged below the upper sealing seat, an emergency sealing ring is arranged on the outer ring of the steering rod in the inner cavity of the lower sealing body, and a baffle ring is arranged between the emergency sealing ring and the lower sealing body and is locked by an emergency sealing gland sealing screw. The emergency sealing device is used for emergency when the rudder stock sealing fails in the marine driving process of a ship, prevents seawater from entering a steering engine, but can only be used in a short time and cannot achieve the long-term sealing effect.

Disclosure of Invention

The utility model aims to solve the technical problem that to foretell technical current situation and provide a rudder stock sealing device that simple structure is reasonable, simple to operate, sealed effectual.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a tiller sealing arrangement characterized in that: the rudder stock sealing device comprises a packing box and a gland, the packing box comprises a circular steel plate, a connecting hole is formed in the circular steel plate in the axial direction, the circular steel plate is fixedly connected with a ship structure on a deck of the steering engine bin through a first stud, a cylindrical upper connecting cylinder is vertically welded on one side, close to an inner ring, of the upper end of the circular steel plate, a plurality of connecting lugs are welded at the outward horizontal interval of the upper end of the upper connecting cylinder, connecting screw holes are formed in the connecting lugs, the gland is circular, through holes corresponding to the connecting lugs of the packing box are formed in the gland, the second stud is fixedly connected with the connecting lugs, a sealing strip is arranged between the inner side of the upper connecting cylinder of the packing box and the circular steel plate, the inner ring of the gland is consistent with the inner diameter of the upper connecting cylinder, and a convex ring pressed against the sealing strip is welded at the inner ring of the gland.

As an improvement, the stuffing box and the gland are both made of steel plates through cutting and welding, one side, close to the connecting holes, of the lower end face of a circular steel plate of the stuffing box is provided with concave step faces, the connecting holes are 14-20 evenly distributed at intervals, and the positions of the connecting holes are staggered with the connecting lugs and are in different circles.

Furthermore, the stuffing box is cut into two halves convenient to install after being manufactured, 5-6 connecting lugs are arranged on each half of the stuffing box, 2 connecting lugs are arranged at two ends, and the rest are uniformly distributed.

And furthermore, an inwards concave inclined plane is formed on the inner side of the lower end of the convex ring of the gland, the gland is cut into a half-half part convenient to mount after being manufactured, and a through hole on each half of the gland corresponds to a connecting lug on the stuffing box.

And when the stuffing box and the gland are installed, anaerobic adhesive is filled at the joint of the two halves for sealing.

Furthermore, the lower end of the first stud penetrates through the connecting hole to be connected and fixed with the connecting part of the ship body structure, and the upper end of the first stud is provided with a first spring washer, a first nut, a first thin nut and the upper end of the circular steel plate which are screwed and fixed.

Furthermore, the lower end of the second stud penetrates through the through hole of the gland to be fixedly connected with the connecting lug, and the upper end of the second stud is provided with a second spring washer, a second nut and a second thin nut which are screwed and fixed with the upper end of the gland.

And finally, the sealing strip adopts a carbon fiber packing.

Compared with the prior art, the utility model has the advantages of: adopt stud to compress tightly gland and gland, gland and hull structure junction fixed, set up carbon fiber packing, effectively increase sealed effect. The utility model has the advantages of simple and reasonable structure, simple to operate, sealed effectual, be applicable to the sealing of various boats and ships steering wheel, can effectively prevent the sea water infiltration, have good operation and performance.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a stuffing box according to an embodiment of the present invention;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is an enlarged view of a portion of area A of FIG. 2;

fig. 5 is a schematic structural diagram of a gland according to an embodiment of the present invention;

FIG. 6 is a top view of FIG. 5;

FIG. 7 is a partial enlarged view of the area B in FIG. 5;

fig. 8 is a schematic structural diagram of a stud according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 8, a rudder stock sealing device includes a stuffing box 1 and a gland 2, the stuffing box 1 includes a circular steel plate 11, connecting holes 111 are uniformly arranged on the circular steel plate 11 at intervals in the axial direction, the circular steel plate is connected and fixed with a hull structure on a deck 5 of a steering engine cabin through a first stud 3, a cylindrical upper connecting cylinder 12 is vertically welded on one side of the upper end of the circular steel plate 11 close to an inner ring, a plurality of connecting lugs 13 are welded on the upper end of the upper connecting cylinder 12 at intervals in the outward horizontal direction, connecting screw holes are formed in the connecting lugs 13, the gland 2 is circular, a through hole 21 corresponding to the connecting lug 13 of the stuffing box 1 is formed in the gland 2, the gland is connected and fixed with the connecting lug 13 through a second stud 4, a sealing strip 6 is arranged between the inner side of the upper connecting cylinder 12 of the stuffing box 1 and the circular steel plate 11, the inner ring of the gland 2 is consistent with the inner diameter of the upper connecting cylinder 12, and a convex ring pressed against the sealing strip 6 is welded at the inner ring of the gland 2.

The concrete structure is as follows: the stuffing box 1 and the gland 2 are both made of steel plates by cutting and welding, one side of the lower end face of a circular steel plate 11 of the stuffing box 1, which is close to a connecting hole 111, is provided with concave step faces, the connecting holes 11 are 16 which are distributed at even intervals, and the positions of the connecting holes 16 and the connecting lugs 13 are staggered and are different rings. The stuffing box 1 is cut into two halves convenient to install after being manufactured, the number of the connecting lugs 13 on each half stuffing box 1 is 5, 2 of the connecting lugs 13 are arranged at two ends, and the rest are uniformly distributed. The outer diameter of the gland 2 is consistent with that of the connecting lug 13, the inner side of the lower end of the convex ring 22 of the gland 2 is formed with an inward concave inclined plane, the gland 2 is cut into a half part and a half part which are convenient to mount after being manufactured, and the through hole 21 on each half gland 2 corresponds to the connecting lug 13 on the stuffing box 1. When the stuffing box 1 and the gland 2 are installed, the joint of the two halves is filled with anaerobic adhesive for sealing. The lower end of the first stud 3 passes through the connecting hole 111 to be connected and fixed with the hull structure on the deck 5 of the steering engine bin, and the upper end of the first stud 3 is provided with a first spring washer 31, a first nut 32 and a first thin nut 33 which are screwed and fixed with the upper end of the circular steel plate 11. The lower end of the second stud bolt 4 passes through the through hole 21 of the gland 2 and is fixedly connected with the threaded through hole of the connecting lug 13, and the upper end of the second stud bolt 4 is provided with a second spring washer 41, a second nut 42 and a second thin nut 43 which are fixedly screwed with the upper end of the gland 2. The sealing strip 6 adopts a carbon fiber packing.

The specific operation is as follows:

the method comprises the steps of firstly preparing a stuffing box 1 and a gland 2 according to the size, cutting and welding the stuffing box and the gland, then cutting the stuffing box into a half part and a half part, cleaning the installation surface before installation, installing the stuffing box 1 and the gland 2 in a half-and-half butt joint mode, filling anaerobic adhesive into a butt joint gap to prevent seawater from permeating, controlling the deviation between the center of the whole sealing device and the center of a rudder system within 0.3mm, and finally connecting and fixing the stuffing box 1 and the gland 2 by using stud bolts 3 and 4.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A tiller sealing arrangement characterized in that: the rudder stock sealing device comprises a stuffing box and a gland, the stuffing box comprises a circular steel plate, a connecting hole is formed in the circular steel plate in the axial direction, the circular steel plate is fixedly connected with a ship structure on a deck of the steering engine bin through a first stud, a cylindrical upper connecting cylinder is vertically welded at one side, close to an inner ring, of the upper end of the circular steel plate, a plurality of connecting lugs are welded at the outer horizontal interval of the upper end of the upper connecting cylinder, connecting screw holes are formed in the connecting lugs, the gland is circular, through holes corresponding to the connecting lugs of the stuffing box are formed in the gland, the second stud is fixedly connected with the connecting lugs, a sealing strip is arranged between the inner side of the upper connecting cylinder of the stuffing box and the circular steel plate, the inner ring of the gland is consistent with the inner diameter of the upper connecting cylinder, and a convex ring which is pressed against the sealing strip is welded at the inner ring of the gland.

2. Rudder stock sealing device according to claim 1, characterised in that: the stuffing box and the gland are both made of steel plates through cutting and welding, one side, close to the connecting holes, of the lower end face of the circular steel plate of the stuffing box is provided with concave step faces, the connecting holes are 14-20 in uniform interval distribution, and the positions of the connecting holes and the connecting lugs are staggered and are different.

3. Rudder stock sealing device according to claim 2, characterised in that: the stuffing boxes are cut into two halves convenient to install after being manufactured, 5-6 connecting lugs are arranged on each half stuffing box, 2 connecting lugs are arranged at two ends, and the rest are uniformly distributed.

4. Rudder stock sealing device according to claim 3, characterised in that: an inward-concave inclined plane is formed on the inner side of the lower end of the convex ring of the gland, the gland is cut into a half part and a half part which are convenient to install after being manufactured, and a through hole on each half gland corresponds to a connecting lug on the stuffing box.

5. Tiller sealing arrangement according to claim 4, characterized in that: when the stuffing box and the gland are installed, the joint of the two halves is filled with anaerobic adhesive for sealing.

6. Rudder post seal according to any of claims 1-5, wherein: the lower end of the first stud penetrates through the connecting hole to be fixedly connected with the connecting part of the ship body structure, and the upper end of the first stud is provided with a first spring washer, a first nut, a first thin nut and the upper end of the circular steel plate which are screwed and fixed.

7. Rudder post sealing arrangement according to any of claims 1 to 5, wherein: the lower end of the second stud penetrates through the through hole of the gland to be fixedly connected with the connecting lug, and the upper end of the second stud is provided with a second spring washer, a second nut, a second thin nut and the upper end of the gland to be screwed and fixed.

8. Rudder post seal according to any of claims 1-5, wherein: the sealing strip adopts carbon fiber packing.