Ship tail shaft axial sealing pressure test device

Abstract

The utility model provides a ship stern shaft axial sealing pressure test device, and relates to the stern shaft axial sealing pressure test device technical field, the ship stern shaft axial sealing pressure test device comprises a first fixing plate and a sealing pressure test assembly, the sealing pressure test assembly comprises a fixing shaft, the inner wall of the fixing shaft close to the center is fixedly connected with a second fixing plate, and the second fixing plate is fixedly connected with the sealing pressure test assembly. A ship stern simulation shaft is movably embedded in one end of the inner wall of the fixed shaft, and a shaft seal fixedly sleeves the center of the outer surface of the ship stern simulation shaft. According to the utility model, the sealing pressure test assembly is arranged, a device needing sealing pressure test is connected with the ship stern simulation shaft, the booster water pump is started to add water to one side of the second fixing plate, and whether leakage occurs on the other side of the second fixing plate is observed, so that the sealing effect of the axial sealing device of the ship stern shaft is detected. And the detection time is shortened, so that the working efficiency of a worker on the axial sealing pressure test of the ship tail shaft is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of stern shaft axial sealing pressure testing device, and in particular to a ship stern shaft axial sealing pressure testing device. Background Technology

[0002] The stern shaft axial seal pressure test device is a device used to test the sealing performance of the stern shaft seal device of a ship. The function of the stern shaft seal device is to prevent seawater and other liquids from entering the ship's interior, and also to prevent lubricating oil and other media from leaking to the outside.

[0003] In the prior art, the axial sealing device of the stern shaft of a ship is a device that prevents water from entering the hull while maintaining lubrication. The traditional axial sealing pressure test of the stern shaft of a ship mainly relies on manual inspection by the staff. However, the manual inspection process is relatively complicated and takes a long time, resulting in low work efficiency of the staff in the axial sealing pressure test of the stern shaft of the ship. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the manual inspection process of existing technology is complicated and time-consuming, resulting in low efficiency of workers in the axial sealing pressure test of ship stern shafts. Therefore, this invention proposes a ship stern shaft axial sealing pressure test device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a ship stern shaft axial sealing pressure test device, comprising a first fixed plate and a sealing pressure test assembly, wherein the sealing pressure test assembly includes a fixed shaft, a second fixed plate is fixedly connected to the inner wall of the fixed shaft near the center, a ship stern simulated shaft is movably embedded at one end of the inner wall of the fixed shaft, a shaft seal is fixedly sleeved on the outer surface of the ship stern simulated shaft at the center, and a pressure sensor is provided on the outer surface of the inner wall of the fixed shaft near the second fixed plate.

[0006] Preferably, the outer surface of the shaft seal is rotatably connected to the inner wall of the second fixing plate, and a base is fixedly connected to the inner wall of the fixing shaft near one end.

[0007] Preferably, a motor is provided on the outer surface of the base, and an output shaft is fixedly connected to the output end of the motor.

[0008] Preferably, a first gear is fixedly connected to one end of the output shaft, and a second gear is fixedly sleeved on the outer surface of the simulated ship stern shaft.

[0009] Preferably, the outer surface of the first gear meshes with the outer surface of the second gear, and a water tank is fixedly connected to the outer surface of the first fixing plate.

[0010] Preferably, a booster water pump is provided on one outer surface of the first fixing plate, and the input end of the booster water pump is fixedly connected to a first water pipe, one end of the first water pipe being fixedly penetrated through the outer surface of the water tank and extending into the interior.

[0011] Preferably, the input end of the booster pump is fixedly connected to a second water pipe, one end of which is fixedly connected to the outer surface of the fixed shaft. Two support blocks are fixedly connected to the other outer surface of the first fixed plate, and the outer surfaces of the two support blocks are fixedly connected to the outer surface of the fixed shaft. A sealing plate is provided on one side of the outer surface of the fixed shaft near the other end.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, the device is equipped with a sealing pressure test component. By connecting the device that needs to be sealed and pressure tested to the simulated stern shaft of a ship, the booster water pump is started to add water to one side of the second fixed plate. By observing whether there is leakage on the other side of the second fixed plate, the sealing effect of the axial sealing device of the stern shaft of the ship can be tested, which shortens the testing time and improves the work efficiency of the staff in the axial sealing pressure test of the stern shaft of the ship.

[0014] 2. In this utility model, the device uses a motor to drive the simulated stern shaft of a ship to rotate, thereby simulating the rotation of the simulated stern shaft and sealing device of a real ship during operation, thus increasing the authenticity of the test results. Attached Figure Description

[0015] Figure 1 This utility model provides a front perspective view of a ship stern shaft axial sealing pressure testing device;

[0016] Figure 2 This utility model provides a frontal perspective view of a pressure sensor for a ship stern shaft axial sealing pressure testing device;

[0017] Figure 3 This utility model provides a three-dimensional cross-sectional view of the fixed shaft portion of a ship stern shaft axial sealing pressure testing device;

[0018] Figure 4 This utility model provides a front-view perspective view of a booster pump for a ship stern shaft axial sealing pressure test device;

[0019] Figure 5 This utility model presents a front perspective view of the sealing plate of a ship stern shaft axial sealing pressure test device.

[0020] Legend: 1. First fixed plate; 2. Sealing and pressure testing assembly; 201. Fixed shaft; 202. Second fixed plate; 203. Simulated stern shaft of a ship; 204. Shaft seal; 205. Pressure sensor; 3. Base; 4. Motor; 5. Output shaft; 6. First gear; 7. Second gear; 8. Water tank; 9. Booster pump; 10. First water pipe; 11. Second water pipe; 12. Support block; 13. Sealing plate. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: As Figures 1-5 As shown, this utility model provides a ship stern shaft axial sealing pressure test device, including a first fixing plate 1 and a sealing pressure test assembly 2. The sealing pressure test assembly 2 includes a fixed shaft 201, a second fixing plate 202 fixedly connected to the inner wall of the fixed shaft 201 near the center, a ship stern simulated shaft 203 movably embedded at one end of the inner wall of the fixed shaft 201, a shaft seal 204 fixedly sleeved on the outer surface of the ship stern simulated shaft 203 at the center, a pressure sensor 205 provided on the outer surface of the inner wall of the fixed shaft 201 near the second fixing plate 202, the outer surface of the shaft seal 204 rotatably connected to the inner wall of the second fixing plate 202, a base 3 fixedly connected to the inner wall of the fixed shaft 201 near one end, and a first gear 6. The outer surface of the first fixed plate 1 meshes with the outer surface of the second gear 7. A water tank 8 is fixedly connected to the outer surface of the first fixed plate 1. A booster water pump 9 is provided on one side of the outer surface of the first fixed plate 1. A first water pipe 10 is fixedly connected to the input end of the booster water pump 9. One end of the first water pipe 10 is fixedly connected through the outer surface of the water tank 8 and extends into the interior. A second water pipe 11 is fixedly connected to the input end of the booster water pump 9. One end of the second water pipe 11 is fixedly connected to the outer surface of the fixed shaft 201. Two support blocks 12 are fixedly connected to the other side of the outer surface of the first fixed plate 1. The outer surfaces of the two support blocks 12 are fixedly connected to the outer surface of the fixed shaft 201. A sealing plate 13 is provided on one side of the outer surface of the fixed shaft 201 near the other end.

[0024] The overall effect of Embodiment 1 is as follows: When using a ship stern shaft axial sealing pressure testing device, the operator first needs to de-attach the sealing plate 13 to the fixed shaft 201, then connect the ship stern shaft to be tested to the second fixed plate 202 and the simulated ship stern shaft 203. After the connection is completed, seal one end of the sealing plate 13 to the fixed shaft 201. Then, the operator simultaneously starts the motor 4 and the booster water pump 9. The booster water pump 9 will draw water from the water tank 8 through the inside of the first water pipe 10, and then the water in the water tank 8 will flow through the first water pipe. The water flows into the booster pump 9 from inside the 10. The booster pump 9 pressurizes the water and delivers it to the second water pipe 11. The water then flows into the space between the fixed shaft 201 and the second fixed plate 202. As the water enters the fixed shaft 201, it gradually increases and comes into contact with the ship stern shaft and the simulated ship stern shaft 203 being tested. Simultaneously, the motor 4 drives the output shaft 5 to rotate, which in turn drives the first gear 6 to rotate. The first gear 6 then drives the second gear 7 to rotate, which in turn drives the simulated ship stern shaft 203 to rotate. When the simulated stern shaft 203 rotates, it drives the stern shaft and shaft seal 204 to rotate as well. Shaft seal 204 is a known technology used to prevent fluid leakage and the entry of dust and contaminants into the equipment, and will not be explained in detail here. The outer surface of shaft seal 204 rotates along the interior of the second fixed plate 202. Simultaneously, pressure sensor 205 detects the water pressure within the fixed shaft 201. The system observes whether water on one side of the second fixed plate 202 has seeped into the second fixed plate 202 through the connection between the simulated stern shaft 203 and the stern shaft. On the other side, the sealing and pressure resistance of the ship's stern shaft are tested. This device is equipped with a sealing pressure test component 2. By connecting the device that needs to be sealed and pressure tested to the simulated stern shaft 203 of the ship, the booster water pump 9 is started to add water to one side of the second fixed plate 202. By observing whether there is leakage on the other side of the second fixed plate 202, the sealing effect of the ship's stern shaft axial sealing device is tested. This solves the problem that the manual testing process is complicated and time-consuming, resulting in low efficiency of the workers in the axial sealing pressure test of the ship's stern shaft.

[0025] Example 2: As Figures 1-5 As shown, a motor 4 is provided on the outer surface of the base 3, and an output shaft 5 is fixedly connected to the output end of the motor 4. A first gear 6 is fixedly connected to one end of the output shaft 5, and a second gear 7 is fixedly sleeved on the outer surface of the ship stern simulation shaft 203.

[0026] The effect achieved by the entire embodiment 2 is that when a ship stern shaft axial sealing pressure test device is used, the motor 4 is started, the motor 4 drives the output shaft 5 to rotate, the output shaft 5 drives the first gear 6 to rotate, the first gear 6 drives the second gear 7 to rotate, and the rotation of the second gear 7 drives the ship stern simulated shaft 203 to rotate. When the ship stern simulated shaft 203 rotates, it drives the ship stern shaft and shaft seal 204 to rotate. By driving the ship stern simulated shaft 203 to rotate through the motor 4, the rotation of the ship stern simulated shaft 203 and the sealing device during operation is simulated, thereby increasing the authenticity of the test results.

[0027] Working Principle: When using a ship stern shaft axial sealing pressure testing device, the operator needs to connect the ship stern shaft to be tested to the second fixed plate 202 and the simulated ship stern shaft 203. Then, the sealing plate 13 is sealed to the fixed shaft 201. Simultaneously, the operator starts the motor 4 and the booster pump 9. The booster pump 9 draws water from the water tank 8 through the first water pipe 10. The booster pump 9 then draws water through the second water pipe 11 into the fixed shaft 201. The water level in the fixed shaft 201 gradually increases, coming into contact with the ship stern shaft and the simulated ship stern shaft 203 being tested. Simultaneously, the motor 4 drives the first gear 6 to rotate, which in turn drives the second gear 7. The rotation of the second gear 7 then drives the simulated ship stern shaft... When the simulated stern shaft 203 rotates, it drives the stern shaft and shaft seal 204 to rotate. The motor 4 drives the simulated stern shaft 203 to rotate, thus simulating the rotation of the simulated stern shaft 203 and the sealing device during operation. At the same time, the pressure sensor 205 detects the water pressure in the fixed shaft 201. This device is equipped with a sealing pressure test component 2. By connecting the device that needs to be sealed and pressure tested to the simulated stern shaft 203, the booster water pump 9 is started to add water to one side of the second fixed plate 202. By observing whether there is leakage on the other side of the second fixed plate 202, the sealing effect of the axial sealing device of the stern shaft is tested, which shortens the testing time and improves the work efficiency of the staff in the axial sealing pressure test of the stern shaft.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A ship stern shaft axial sealing pressure test device, comprising a first fixing plate (1) and a sealing pressure test assembly (2), characterized in that: The sealing pressure test assembly (2) includes a fixed shaft (201), a second fixed plate (202) is fixedly connected to the inner wall of the fixed shaft (201) near the center, a ship stern simulation shaft (203) is movably embedded at one end of the inner wall of the fixed shaft (201), a shaft seal (204) is fixedly sleeved on the outer surface of the ship stern simulation shaft (203) at the center, and a pressure sensor (205) is provided on the outer surface of the inner wall of the fixed shaft (201) near the second fixed plate (202).

2. The axial sealing pressure testing device for a ship's stern shaft according to claim 1, characterized in that: The outer surface of the shaft seal (204) is rotatably connected to the inner wall of the second fixing plate (202), and a base (3) is fixedly connected to one end of the inner wall of the fixing shaft (201).

3. The axial sealing pressure testing device for a ship's stern shaft according to claim 2, characterized in that: The outer surface of the base (3) is provided with a motor (4), and the output end of the motor (4) is fixedly connected to an output shaft (5).

4. The axial sealing pressure testing device for a ship's stern shaft according to claim 3, characterized in that: One end of the output shaft (5) is fixedly connected to a first gear (6), and a second gear (7) is fixedly sleeved on the outer surface of the ship stern simulation shaft (203).

5. The axial sealing pressure testing device for a ship's stern shaft according to claim 4, characterized in that: The outer surface of the first gear (6) meshes with the outer surface of the second gear (7), and a water tank (8) is fixedly connected to the outer surface of the first fixing plate (1).

6. The axial sealing pressure testing device for a ship's stern shaft according to claim 1, characterized in that: A booster pump (9) is provided on one side of the outer surface of the first fixing plate (1). The input end of the booster pump (9) is fixedly connected to a first water pipe (10). One end of the first water pipe (10) is fixedly penetrated through the outer surface of the water tank (8) and extends into the interior.

7. A ship stern shaft axial sealing pressure testing device according to claim 6, characterized in that: The input end of the booster pump (9) is fixedly connected to a second water pipe (11). One end of the second water pipe (11) is fixedly connected to the outer surface of the fixed shaft (201). Two support blocks (12) are fixedly connected to the outer surface of the other side of the first fixed plate (1). The outer surfaces of the two support blocks (12) are fixedly connected to the outer surface of the fixed shaft (201). A sealing plate (13) is provided on one side of the outer surface of the fixed shaft (201) near the other end.

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