CN215098201U

CN215098201U - Energy-saving ship tail shaft sealing device

Info

Publication number: CN215098201U
Application number: CN202120379773.0U
Authority: CN
Inventors: 倪红艳
Original assignee: Ezhou Sanjiang Dongshun Shipping Co ltd
Current assignee: Ezhou Sanjiang Dongshun Shipping Co ltd
Priority date: 2021-02-20
Filing date: 2021-02-20
Publication date: 2021-12-10
Anticipated expiration: 2031-02-20

Abstract

The utility model discloses an energy-saving ship tail shaft sealing device, a tail shaft and a seal box, wherein the tail shaft is rotatably connected with two ends of the seal box through a seal bearing, a baffle is fixedly arranged at the middle part in the seal box, a gas seal bin and an oil seal bin are respectively arranged at two sides of the baffle, and a cooling box is fixedly arranged at the bottom of the seal box, the utility model seals the joint of the tail shaft and the seal box through the seal bearing and the seal ring, ensures the sealing effect of the seal box through two sealing modes of high-pressure gas sealing and lubricating oil sealing, seals lubricating oil through the annular seal gasket, avoids lubricating oil leakage, prevents the lubricating oil from leaking through the high-pressure gas in the gas seal bin, lubricates the tail shaft and cools the tail shaft while sealing through the oil seal bin, increases the heat radiation efficiency of the tail shaft through the heat conducting needle, the cooling box arranged outside the ship body enables the condensation pipe to be in contact with water to cool the lubricating oil.

Description

Energy-saving ship tail shaft sealing device

Technical Field

The utility model relates to a sealing device technical field specifically is an energy-saving boats and ships tail shaft sealing device.

Background

The tail shaft is characterized in that a head end flange of the last section of the shaft in a shaft system is connected with a middle shaft flange through a tight-fit bolt, the tail end of the tail shaft is in a conical shape and used for mounting a propeller, and the tail shaft is forged by high-quality carbon steel.

When a ship propeller and a diesel engine in a cabin are in transmission, a tail shaft sealing device is needed to be used, so that when the diesel engine in the cabin drives the propeller, transmission and sealing effects are achieved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an energy-saving boats and ships tailing axle sealing device 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:

the utility model provides an energy-saving ship tail shaft sealing device, includes tail shaft and seal box, the tail shaft passes the seal box installation, the tail shaft passes sealed bearing and is connected with the seal box both ends rotation, the fixed baffle that is provided with in the middle part of the seal box, the baffle both sides are provided with airtight storehouse and oil seal storehouse respectively, install pressure sensor in the airtight storehouse, airtight storehouse top fixed mounting has the intake pipe, the intake pipe is connected with the output of air compressor machine, install solenoid valve in the intake pipe, install temperature sensor in the oil seal storehouse, it has lubricating oil to flow in the oil seal storehouse, oil pipe is installed at oil seal storehouse top, it is connected with the input of speed governing oil pump to go out the oil pipe, seal box bottom fixed mounting has the cooler bin.

As a further aspect of the present invention: bearing blocks are fixedly arranged at two ends of the sealing box, two sealing rings are arranged between the sealing bearing and the bearing blocks, and mounting grooves corresponding to the sealing rings are formed in the inner walls of the bearing blocks.

As a further aspect of the present invention: and a heat conducting needle is fixedly arranged in the partition plate, and two ends of the heat conducting needle penetrate through the partition plate and are respectively arranged in the air sealing bin and the oil sealing bin.

As a further aspect of the present invention: the middle part of the partition board is provided with a through hole corresponding to the tail shaft, the joint of the partition board and the tail shaft is provided with two annular sealing gaskets, the inner diameters of the two annular sealing gaskets are consistent, the outer diameter of the outer annular sealing gasket is larger than that of the inner annular sealing gasket, and the partition board is provided with a groove corresponding to the two annular sealing gaskets.

As a further aspect of the present invention: and a pressing plate is arranged on one side of the annular sealing gasket, the pressing plate is fixedly connected with the partition plate through screws, and threaded holes corresponding to the screws are formed in the partition plate and the pressing plate.

As a further aspect of the present invention: cooler bin one end is provided with a plurality of through-holes, installs the condenser pipe in the cooler bin, and the condenser pipe is reciprocal pipeline of buckling, and the condenser pipe is installed in the bottom of oil seal storehouse, the entry end of condenser pipe and the output intercommunication of speed governing oil pump by fixed strip fixed mounting in the cooler bin, the exit end of condenser pipe.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a sealed bearing and the sealing washer that sets up seal the junction of tail shaft and seal box, sealed effect of seal box has been guaranteed through two kinds of sealed modes of high-pressure gas seal and lubricating oil seal, seal up through the annular of setting up and seal up lubricating oil, avoid lubricating oil to leak, and high-pressure gas in the airtight storehouse also can prevent lubricating oil to leak, carry out lubrication and cooling heat dissipation to it when sealed through the oil seal storehouse that sets up to the tail shaft, the heat dissipation cooling efficiency of tail shaft has been increased through the heat conduction needle that sets up, cool down to lubricating oil through the cooler bin that makes condenser pipe and water contact at the outside setting of hull.

Drawings

Fig. 1 is a schematic structural diagram of an energy-saving ship tail shaft sealing device.

Fig. 2 is a schematic diagram of an operation module of an energy-saving ship tail shaft sealing device.

In the figure: the device comprises a tail shaft 1, a seal box 2, a seal bearing 3, a bearing seat 4, a seal ring 5, a partition plate 6, a gas seal bin 7, an oil seal bin 8, a heat conduction needle 9, an annular seal gasket 10, a pressure plate 11, a pressure sensor 12, an air inlet pipe 13, an electromagnetic valve 14, a temperature sensor 15, an oil outlet pipe 16, a cooling box 17, a condensation pipe 18 and a fixing strip 19.

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. 1-2, in the embodiment of the present invention, an energy-saving ship tail shaft sealing device comprises a tail shaft 1 and a seal box 2, wherein the tail shaft 1 passes through the seal box 2 for installation, the tail shaft 1 is rotatably connected with two ends of the seal box 2 through seal bearings 3 for sealing the joint of the tail shaft 1 and the seal box 2, two ends of the seal box 2 are fixedly provided with bearing seats 4, two seal rings 5 are arranged between the seal bearings 3 and the bearing seats 4 for sealing the joint of the tail shaft 1 and the seal box 2, the inner wall of the bearing seat 4 is provided with a mounting groove corresponding to the seal ring 5, a partition plate 6 is fixedly arranged in the middle of the seal box 2, two sides of the partition plate 6 are respectively provided with a hermetic seal bin 7 and an oil seal bin 8, the two sealing modes ensure the sealing effect of the seal box 2, the oil seal bin 8 lubricates and cools the tail shaft 1 while sealing it, the heat conducting needle 9 is fixedly arranged in the clapboard 6, the heat dissipation and cooling efficiency of the tail shaft 1 is increased, two ends of the heat conducting needle 9 penetrate through the clapboard and are respectively arranged in the air sealing bin 7 and the oil sealing bin 8, the middle part of the clapboard 6 is provided with a through hole corresponding to the tail shaft 1, the joint of the clapboard 6 and the tail shaft 1 is provided with two annular sealing gaskets 10 for sealing lubricating oil to avoid the leakage of the lubricating oil, high-pressure gas in the air sealing bin 7 can also prevent the leakage of the lubricating oil, the inner diameters of the two annular sealing gaskets 10 are consistent, the outer diameter of the outer annular sealing gasket 10 is larger than that of the inner annular sealing gasket 10, the clapboard 6 is provided with a groove corresponding to the two annular sealing gaskets 10, one side of each annular sealing gasket 10 is provided with a pressing plate 11, the pressing plate 11 is fixedly connected with the clapboard 6 by screws, the clapboard 6 and the pressing plate 11 are provided with threaded holes corresponding to the screws, and the pressure sensor 12 is arranged in the air sealing bin 7, an air inlet pipe 13 is fixedly installed at the top of the airtight cabin 7, the air inlet pipe 13 is connected with the output end of an air compressor, an electromagnetic valve 14 is installed on the air inlet pipe 13, a temperature sensor 15 is installed in the oil sealed cabin 8, lubricating oil flows and is filled in the oil sealed cabin 8, an oil outlet pipe 16 is installed at the top of the oil sealed cabin 8, the oil outlet pipe 16 is connected with the input end of a speed-regulating oil pump, a cooling box 17 is fixedly installed at the bottom of the sealed box 2, a plurality of through holes are formed in one end of the cooling box 17, a condensing pipe 18 is installed in the cooling box 17, the condensing pipe 18 is a reciprocating bending pipeline, the condensing pipe 18 is fixedly installed in the cooling box 17 through a fixing strip 19, the outlet end of the condensing pipe 18 is installed at the bottom of the oil sealed cabin 8, the inlet end of the condensing pipe 18 is communicated with the output end of the speed-regulating oil pump, the cooling tank 17 provided outside the hull brings the condensation pipe 18 into contact with water to cool the lubricating oil.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. An energy-saving ship tail shaft sealing device comprises a tail shaft (1) and a sealing box (2), and is characterized in that the tail shaft (1) penetrates through the sealing box (2) to be installed, the tail shaft (1) is rotatably connected with two ends of the sealing box (2) through a sealing bearing (3), a partition plate (6) is fixedly arranged in the middle of the sealing box (2), a gas sealing bin (7) and an oil sealing bin (8) are respectively arranged on two sides of the partition plate (6), a pressure sensor (12) is installed in the gas sealing bin (7), an air inlet pipe (13) is fixedly installed at the top of the gas sealing bin (7), the air inlet pipe (13) is connected with the output end of an air compressor, an electromagnetic valve (14) is installed on the air inlet pipe (13), a temperature sensor (15) is installed in the oil sealing bin (8), lubricating oil is filled in the oil sealing bin (8) in a flowing mode, an oil outlet pipe (16) is installed at the top of the oil sealing bin (8), the oil outlet pipe (16) is connected with the input end of the speed regulation oil pump, and the bottom of the seal box (2) is fixedly provided with a cooling box (17).

2. The energy-saving ship tail shaft sealing device according to claim 1, wherein bearing seats (4) are fixedly arranged at two ends of the sealing box (2), two sealing rings (5) are arranged between the sealing bearing (3) and the bearing seats (4), and mounting grooves corresponding to the sealing rings (5) are arranged on the inner wall of the bearing seats (4).

3. The energy-saving ship tail shaft sealing device as claimed in claim 1, wherein a heat conducting needle (9) is fixedly arranged in the partition plate (6), and two ends of the heat conducting needle (9) penetrate through the partition plate and are respectively arranged in the air sealing bin (7) and the oil sealing bin (8).

4. The energy-saving ship tail shaft sealing device as claimed in claim 1, wherein a through hole corresponding to the tail shaft (1) is formed in the middle of the partition plate (6), two annular sealing gaskets (10) are arranged at the joint of the partition plate (6) and the tail shaft (1), the inner diameters of the two annular sealing gaskets (10) are consistent, the outer diameter of the outer annular sealing gasket (10) is larger than the outer diameter of the inner annular sealing gasket (10), and grooves corresponding to the two annular sealing gaskets (10) are formed in the partition plate (6).

5. The energy-saving ship tail shaft sealing device as claimed in claim 4, wherein a pressure plate (11) is installed at one side of the annular sealing gasket (10), the pressure plate (11) is fixedly connected with the partition plate (6) through screws, and threaded holes corresponding to the screws are formed in the partition plate (6) and the pressure plate (11).

6. The energy-saving ship tail shaft sealing device as claimed in claim 1, wherein one end of the cooling tank (17) is provided with a plurality of through holes, a condensation pipe (18) is installed in the cooling tank (17), the condensation pipe (18) is a reciprocating bending pipeline, the condensation pipe (18) is fixedly installed in the cooling tank (17) through a fixing strip (19), the outlet end of the condensation pipe (18) is installed at the bottom of the oil sealing bin (8), and the inlet end of the condensation pipe (18) is communicated with the output end of the speed-regulating oil pump.