Ship stern axial sealing pressure test device

Abstract

The utility model belongs to the technical field of ship stern shaft detection devices, and particularly relates to a ship stern axial sealing pressure test device which comprises a mounting plate, a sealing mechanism fixedly mounted in the mounting plate, a ship stern simulation shaft movably mounted in the sealing mechanism, and a sealing cover fixedly mounted at the front end of the mounting plate. A stirring assembly is mounted in the sealing cover, and a pressurizing assembly is mounted at the top of the sealing cover; the stirring assembly comprises a rotating shaft and a stirring block, the rotating shaft is movably mounted in the sealing cover, and the stirring block is fixedly connected to the outer wall of the rotating shaft. According to the utility model, the stirring assembly simulates sandstone impact, the pressurizing assembly simulates underwater pressure, and the stirring assembly and the pressurizing assembly work cooperatively, so that a real marine environment is simulated, the reliability and the sealing performance of the sealing mechanism are detected more accurately, the navigation safety of a ship is effectively ensured, and the maintenance cost and the sailing stopping risk are reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to ship stern shaft detection device technical field, concretely is a kind of ship stern shaft sealing test pressure device. BACKGROUND

[0002] Ship stern shaft is the key component of ship propulsion system, it connects the main engine of ship and propeller, transmits the power of main engine to propeller, makes propeller rotate and generates propelling force, propels ship to advance in water.Ship stern shaft sealing mechanism is an important part to ensure normal operation of ship, due to the importance of ship stern shaft sealing mechanism, it needs to be tested by pressure test device before installation and use to ensure good sealing, the pressure environment that ship stern shaft sealing mechanism bears in the process of running can be simulated by pressure test device, whether it exists leakage problem is detected, to prevent the security risk of ship stern shaft sealing failure during navigation.

[0003] After retrieval, the patent with announcement number CN222166460U discloses a kind of ship stern shaft sealing test pressure device, the utility model relates to sealing pressure test technical field, the ship stern shaft sealing test pressure device, by setting sealing equipment placing plate, ship stern simulation shaft, electric push rod and clamping plate, electric push rod pushes clamping plate and moves towards inner side, can be fixed firmly in the sealing equipment placing plate on ship stern simulation shaft of ship stern shaft sealing mechanism, to simulate the actual installation position of ship stern shaft sealing mechanism, by setting sealing placing box, vacuum pump, gas detection pipe, test pressure barrel and pressure sensor, can be evacuated in sealing placing box after ship stern shaft sealing mechanism installation, when there is gas leakage between ship stern shaft sealing mechanism and ship stern simulation shaft, air will flow to test pressure barrel through gas detection pipe, at this time, the pressure sensor at the top of test pressure barrel will feel airflow pressure, to detect the sealing property of device, it is more convenient to detect.

[0004] But the above-mentioned pressure test device cannot simulate sandstone impact in real marine environment when using, ship stern shaft and its sealing mechanism will be impacted by sandstone in seawater when ship is actually sailing, easy to cause the structure damage of sealing mechanism, sealing property drops, to affect the reliability of sealing mechanism in actual use. SUMMARY

[0005] The utility model aims at providing a kind of ship stern shaft sealing test pressure device, can simulate sandstone impact in real marine environment, detects the sealing property when sealing mechanism is impacted.

[0006] In order to achieve the above object, the utility model provides a technical scheme which is: provide a kind of ship stern shaft sealing pressure testing device, the inside fixed mounting of installation plate is equipped with sealing mechanism, the inside movable mounting of sealing mechanism is equipped with ship stern simulation shaft, the front end fixed mounting of installation plate is equipped with sealing cover, the inside installation of sealing cover is equipped with stirring subassembly, the top of sealing cover is equipped with pressurizing subassembly;

[0007] The stirring subassembly includes a rotating shaft and stirring blocks, the rotating shaft is movably installed inside the sealing cover, and the stirring blocks are fixedly connected to the outer wall of the rotating shaft, the stirring blocks are arranged in multiple and annularly distributed on the outer wall of the rotating shaft.

[0008] Optionally, the pressurizing subassembly includes a mounting block, a paddle, an air inlet, an exhaust pipe and an exhaust block, the mounting block is fixedly installed on the top of the sealing cover, the paddle is fixedly connected to the top of the rotating shaft, the paddle is located inside the mounting block, the air inlet is fixedly connected to the air inlet end of the mounting block, the exhaust pipe is fixedly connected to the air outlet end of the mounting block, the air outlet end of the exhaust pipe is fixedly connected with the exhaust block, and the exhaust block is fixedly installed inside the sealing cover.

[0009] Optionally, the pressurizing subassembly further includes a baffle, a spring and a plug block, the baffle is provided with two, the two baffles are fixedly connected inside the exhaust pipe, the spring is fixedly installed on the outer wall of the left baffle, the plug block is fixedly connected to the end of the spring away from the baffle, and the end of the plug block away from the spring is in close contact with the right baffle.

[0010] Optionally, the end of the installation plate close to the sealing cover is provided with a mounting groove, the inside of the mounting groove is fixedly installed with a sealing ring, the sealing ring is located between the installation plate and the sealing cover, and the installation plate and the sealing cover are bolted with bolts.

[0011] Optionally, the top of the sealing cover is provided with an injection port, and the inside of the injection port is screwedly installed with a plug.

[0012] Optionally, the top of the mounting block is fixedly installed with a first driving motor, and the top of the rotating shaft is fixedly installed on the output end of the first driving motor.

[0013] Optionally, the end of the installation plate away from the sealing cover is fixedly connected with a support frame, the inside of the support frame is fixedly installed with a second driving motor, and the end of the sealing mechanism away from the sealing cover is fixedly installed on the output end of the second driving motor.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model discloses a stirring assembly is provided with, when using, first drive motor drives rotating shaft rotation to drive multiple annular distribution's stirring block rotation, and stirring block promotes the rotation of sand and seawater in the seal cover, makes it continuously hit the sealing mechanism, thereby simulating the impact situation of sand and seawater in the sealing mechanism in the ocean environment, can discover the possible problem of sealing mechanism under the impact of sand and seawater in advance, improve the reliability of sealing mechanism in actual use.

[0016] The utility model discloses a pressurizing assembly is provided with, when using, rotating shaft drives paddle rotation, promotes air from air inlet to enter, realizes pressurization through exhaust duct and exhaust block and enters seal cover, and when pressure is too high, and the spring is separated exhaust with the baffle of right side under the driving of airflow and is compressed, and the pressure is automatically regulated, and the pressure environment of the ship underwater is accurately simulated, and the sealing property of sealing mechanism under different pressure is accurately detected, and the risk of the failure of the ship due to sealing problem is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will be to the embodiment or the description of prior art needed to use the drawing briefly introduced, obviously, the following description in the drawing is only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0018] Figure 1 It is the whole structure schematic diagram of the utility model;

[0019] Figure 2 It is the side view structure schematic diagram of the utility model;

[0020] Figure 3 It is the internal structure schematic diagram of the utility model;

[0021] Figure 4 It is Figure 3 The enlarged structure schematic diagram of A in;

[0022] Figure 5 It is Figure 3 The enlarged structure schematic diagram of B in.

[0023] In the drawing: 1, mounting plate;101, support frame;2, sealing mechanism;3, ship stern simulation shaft;4, seal cover;5, stirring assembly;501, rotating shaft;502, stirring block;6, pressurizing assembly;601, mounting block;602, paddle;603, air inlet;604, exhaust duct;605, exhaust block;606, baffle;607, spring;608, block;7, mounting groove;8, sealing ring;9, bolt;10, injection port;11, plug;12, first drive motor;13, second drive motor. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and do not limit the utility model.

[0025] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0026] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the utility model and simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0027] In addition, the terms "first", "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise explicitly and specifically limited.

[0028] Referring to Figures 1-5The utility model provides a kind of ship stern axial sealing pressure test device provided by the embodiment of the utility model, and the problems that the existing pressure test device cannot simulate sandstone impact in real marine environment are solved, and the reliability and sealing property of ship stern axial sealing mechanism 2 can be detected more comprehensively.

[0029] The utility model provides a kind of ship stern axial sealing pressure test device, compared with prior art, solve the problem that the existing pressure test device cannot simulate sandstone impact in real marine environment, and the reliability and sealing property of ship stern axial sealing mechanism 2 can be detected more comprehensively.

[0030] In another embodiment of the utility model, please refer to Figure 3 And Figure 4 Pressure assembly 6 includes mounting block 601, paddle 602, air inlet 603, exhaust pipe 604 and exhaust block 605, mounting block 601 is fixedly installed at the top of seal cover 4, paddle 602 is fixedly connected at the top of rotating shaft 501, paddle 602 is located in the inside of mounting block 601, paddle 602 is rotated by rotating shaft 501, and rotating in mounting block 601 makes air flow, to realize the suction and discharge of air, for pressurizing in seal cover 4, air inlet 603 is fixedly connected at the air inlet end of mounting block 601, air inlet 603 is the passage that air enters mounting block 601, to ensure that external air can smoothly enter mounting block 601, exhaust pipe 604 is fixedly connected at the air outlet end of mounting block 601, exhaust pipe 604 guides the air in mounting block 601 to seal cover 4, to realize the pressurization of seal cover 4 inside, the air outlet end of exhaust pipe 604 is fixedly connected with exhaust block 605, and exhaust block 605 is fixedly installed in seal cover 4, so that air is more evenly distributed in seal cover 4.

[0031] In another embodiment of the utility model, please refer to Figure 3And Figure 4 The pressurizing assembly 6 further comprises two baffles 606, a spring 607 and a plug 608, the two baffles 606 are fixedly connected in the interior of the air exhaust pipe 604, the two baffles 606 provide mounting positions for the spring 607 and the plug 608, and meanwhile limit the moving range of the plug 608, the spring 607 is fixedly installed on the outer wall of the left baffle 606, the spring 607 provides elastic force for the plug 608, so that the plug 608 keeps in a sealing state under normal pressure, and can be pushed when the pressure is too high, the plug 608 is fixedly connected at the end of the spring 607 away from the baffle 606, the end of the plug 608 away from the spring 607 is attached to the right baffle 606, the plug 608 is attached to the right baffle 606 under the elastic force of the spring 607, so as to prevent air from being exhausted, when gas enters, the plug 608 is pushed to be separated from the right baffle 606, air is exhausted, and the function of air intake is realized.

[0032] In another embodiment of the present application, please refer to Figures 1 to 3 The mounting plate 1 is provided with a mounting groove 7 at one end close to the sealing cover 4, the sealing ring 8 is fixedly installed in the mounting groove 7, the sealing ring 8 is located between the mounting plate 1 and the sealing cover 4, the bolt 9 is installed between the mounting plate 1 and the sealing cover 4, the mounting groove 7 and the sealing ring 8 are matched, so as to enhance the sealing property between the mounting plate 1 and the sealing cover 4, and the bolt 9 is used for fixing the sealing cover 4, so as to ensure that the sealing cover 4 is connected closely with the mounting plate 1, and prevent leakage in the test process.

[0033] In another embodiment of the present application, please refer to Figures 3 to 5 The sealing cover 4 is provided with an injection port 10 at the top, the injection port 10 is provided with a plug 11 which is screwed, the injection port 10 is used for injecting sand and seawater into the sealing cover 4, the screwed plug 11 plays a sealing role in the test, so as to prevent leakage, and the plug 11 is convenient to open after the test, so as to clean the interior.

[0034] In another embodiment of the present application, please refer to Figures 1 to 3 The first driving motor 12 is fixedly installed at the top of the mounting block 601, the rotating shaft 501 is fixedly installed at the output end of the first driving motor 12, the first driving motor 12 provides power for the rotating shaft 501, so as to ensure that the rotating shaft 501 drives the stirring block 502 and the paddle 602 to rotate stably, and ensure that the simulation test is carried out normally.

[0035] In another embodiment of the present application, please refer to Figures 1 to 3The one end of the installation plate 1 away from the sealing cover 4 is fixedly connected with a support frame 101, the inside of the support frame 101 is fixedly installed with a second driving motor 13, the one end of the ship stern simulation shaft 3 away from the sealing cover 4 is fixedly installed at the output end of the second driving motor 13, the support frame 101 provides installation support for the second driving motor 13, the second driving motor 13 drives the ship stern simulation shaft 3 to rotate, simulates the rotation condition of the ship stern shaft in actual work, and makes the test closer to the real working condition.

[0036] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A stern shaft sealing pressurization device for a marine vessel comprising a mounting plate (1), characterized in that: The inside of the mounting plate (1) is fixedly installed with a sealing mechanism (2), the inside of the sealing mechanism (2) is movably installed with a ship stern simulation shaft (3), the front end of the mounting plate (1) is fixedly installed with a sealing cover (4), the inside of the sealing cover (4) is installed with a stirring assembly (5), and the top of the sealing cover (4) is installed with a pressurizing assembly (6). The stirring assembly (5) comprises a rotating shaft (501) and stirring blocks (502), the inside of the sealing cover (4) is movably installed with the rotating shaft (501), and the stirring blocks (502) are fixedly connected to the outer wall of the rotating shaft (501). The stirring blocks (502) are provided in plurality and annularly distributed on the outer wall of the rotating shaft (501).

2. A ship stern shaft sealing pressure testing device as claimed in claim 1, characterized in that: The pressurizing assembly (6) comprises a mounting block (601), a paddle (602), an air inlet (603), an exhaust pipe (604) and an exhaust block (605). The mounting block (601) is fixedly installed on the top of the sealing cover (4), the paddle (602) is fixedly connected to the top of the rotating shaft (501), the paddle (602) is located in the inside of the mounting block (601), the air inlet (603) is fixedly connected to the air inlet end of the mounting block (601), the exhaust pipe (604) is fixedly connected to the air outlet end of the mounting block (601), the air outlet end of the exhaust pipe (604) is fixedly connected with the exhaust block (605), and the exhaust block (605) is fixedly installed in the inside of the sealing cover (4).

3. A ship stern shaft sealing pressure testing device as claimed in claim 2, characterized in that: The pressurizing assembly (6) further comprises a baffle (606), a spring (607) and a blocking block (608). The baffle (606) is provided in two, the baffles (606) are fixedly connected in the inside of the exhaust pipe (604), the spring (607) is fixedly installed on the outer wall of the left baffle (606), the blocking block (608) is fixedly connected to the end of the spring (607) away from the baffle (606), and the end of the blocking block (608) away from the spring (607) is mutually attached to the right baffle (606).

4. A ship stern shaft sealing pressure testing device as claimed in claim 1, characterized in that: The end of the mounting plate (1) close to the sealing cover (4) is provided with a mounting groove (7), the inside of the mounting groove (7) is fixedly installed with a sealing ring (8), the sealing ring (8) is located between the mounting plate (1) and the sealing cover (4), and the mounting plate (1) and the sealing cover (4) are bolted with a bolt (9).

5. A ship stern shaft sealing pressure testing device as claimed in claim 1, characterized in that: The top of the sealing cover (4) is provided with an injection port (10), and the inside of the injection port (10) is threadedly installed with a plug (11).

6. A ship stern shaft sealing pressure testing device as claimed in claim 2, characterized in that: The top of the mounting block (601) is fixedly installed with a first driving motor (12), and the top of the rotating shaft (501) is fixedly installed on the output end of the first driving motor (12).

7. A ship stern shaft sealing pressure testing device as claimed in claim 1, characterized in that: The end of the mounting plate (1) away from the sealing cover (4) is fixedly connected with a support frame (101), the inside of the support frame (101) is fixedly installed with a second driving motor (13), and the end of the ship stern simulation shaft (3) away from the sealing cover (4) is fixedly installed on the output end of the second driving motor (13).

Images