Shock resistance detection device for tail shaft sealing device

Abstract

The utility model discloses an impact resistance detection device for a stern shaft sealing device, and relates to the technical field of impact resistance detection devices. Comprising a bottom plate, a protective shell is fixed to the top end of the bottom plate, a mounting groove is formed in the top end of the bottom plate, a first lead screw is rotationally connected between the inner walls of the two sides of the mounting groove, a fixing groove is formed in the top end of the bottom plate, a first motor is mounted in the fixing groove, and the output end of the first motor penetrates through the fixing groove and then is fixed to the first lead screw; the outer wall of the first lead screw is in threaded connection with a first sliding block. The protective shell and the box door are arranged for protection, the situation that in the impact process, the sealing shell is broken in the impact process, and safety threats are caused to operators and surrounding equipment is avoided, in addition, a first motor is started, the first motor drives a first lead screw to rotate, the first lead screw rotates to drive a first sliding block to move, and the safety of the operators is improved. And the first sliding block moves to drive the moving plate and the box door to move, so that the moving plate can be moved to the outer side of the protective shell.

Description

Technical Field

[0001] This utility model relates to the technical field of impact resistance testing devices, specifically an impact resistance testing device for a stern shaft sealing device. Background Technology

[0002] The stern shaft, known in the industry as the tail shaft, connects to the propeller at one end and to the gearbox or coupling at the other, which in turn connects to the engine. On large ships, the stern shaft is mounted on two bearings: one called the stern bearing, which is the part of the hull in contact with the water; and the other called the forward bearing, which connects to the engine room. Between the two bearings is the stern shaft compartment, which is essentially sealed. The stern shaft sealing device typically uses a sealing housing. The main function of the sealing housing is to prevent water and other external substances from entering the stern shaft system, while also preventing internal lubricant leakage. During the production of the sealing housing, it needs to undergo impact resistance testing. An existing impact resistance testing device (announcement number: CN220188275U) has the following disadvantages in use:

[0003] During use, the workpiece is impacted by an impact hammer. However, the sealing shell is prone to cracking during the impact, which may pose a safety threat to the operator and surrounding equipment. To address this issue, this patent proposes an impact resistance detection device for the stern shaft sealing device. Utility Model Content

[0004] The purpose of this invention is to provide an impact resistance testing device for a stern shaft sealing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an impact testing device for a stern shaft sealing device, comprising a base plate, a protective shell fixed to the top of the base plate, an installation groove formed at the top of the base plate, a first lead screw rotatably connected between the inner walls of the two sides of the installation groove, a fixing groove formed at the top of the base plate, a first motor installed in the fixing groove, the output end of the first motor passing through the fixing groove and fixed to the first lead screw, a first slider screwed to the outer wall of the first lead screw, a movable plate fixed to the top of the first slider, a clamping mechanism provided at the top of the movable plate, a door fixed to one side of the movable plate, a first moving mechanism provided between the two ends of the protective shell, a second moving mechanism provided on one side of the first moving mechanism, and an impact device provided at the bottom of the second moving mechanism.

[0006] Preferably, the first moving mechanism includes a second lead screw rotatably connected between the inner walls of both ends of the protective shell, a second slider screwed to the outer wall of the second lead screw, a fixing rod fixed between the inner walls of both ends of the protective shell, the fixing rod passing through the second slider, a second motor fixed to one end of the protective shell, and the output end of the second motor passing through the protective shell and fixed to the second lead screw.

[0007] Preferably, the second moving mechanism includes a mounting frame fixed to one side of the second slider, a third lead screw rotatably connected between the inner walls of the two sides of the mounting frame, a third slider screwed to the outer wall of the third lead screw, a connecting groove opened at the top of the mounting frame, a third motor installed in the connecting groove, the output end of the third motor passing through the mounting frame and fixed to the third lead screw, a connecting block fixed to one side of the mounting frame, a limit rod fixed between the inner walls of the two ends of the protective shell, and the connecting block sliding on the limit rod.

[0008] Preferably, the impact device includes a cylinder fixed to the bottom end of the third slider, a fixing member is installed at the output end of the cylinder, and an impact block is installed at the bottom end of the fixing member.

[0009] Preferably, the clamping mechanism includes two fixed plates fixed to the top of the movable plate. A connecting rod is inserted through each of the two fixed plates. A mounting plate is fixed to the end of each connecting rod that is close to each other. A clamping block is installed at the end of each mounting plate that is close to each other. A screw is screwed to each of the two fixed plates, and the screw is rotatably connected to the mounting plate.

[0010] Preferably, a controller is provided at the other end of the protective shell, and the controller is electrically connected to the first motor, the second motor, the third motor and the cylinder.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] By setting up a protective shell and a door, the sealing shell is prevented from breaking during impact, thus avoiding a safety threat to operators and surrounding equipment. In addition, by starting the first motor, the first motor drives the first lead screw to rotate, which in turn moves the first slider. The movement of the first slider moves the moving plate and the door, allowing the moving plate to be moved to the outside of the protective shell, making it convenient for workers to install the stern shaft sealing device on the moving plate using the clamping mechanism. Attached Figure Description

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of this utility model after the cabinet door has been removed;

[0015] Figure 3 This is a schematic diagram of the impact block structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the clamping mechanism of this utility model.

[0017] In the diagram: 1. Base plate; 2. Protective shell; 3. Box door; 4. Mounting slot; 5. First lead screw; 6. Moving plate; 7. Clamping mechanism; 701. Fixed plate; 702. Connecting rod; 703. Mounting plate; 704. Clamping block; 705. Screw; 8. Second lead screw; 9. Second slider; 10. Fixed rod; 11. Mounting bracket; 12. Third lead screw; 13. Third slider; 14. Cylinder; 15. Impact block; 16. Limiting rod. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Stern shaft sealing devices are typically sealed using a sealing housing. The main function of the sealing housing is to prevent water and other external substances from entering the stern shaft system, while also preventing internal lubricant leakage. During the production of the sealing housing, it is necessary to conduct impact resistance tests. This invention provides a stern shaft sealing device impact resistance testing device that uses a protective shell 2 and a door 3 for protection, preventing the sealing housing from cracking during impact and posing a safety threat to operators and surrounding equipment.

[0020] like Figures 1-4 As shown, this utility model provides a technical solution: an impact resistance testing device for a stern shaft sealing device, including a base plate 1, a protective shell 2 fixed to the top of the base plate 1, an installation groove 4 opened at the top of the base plate 1, a first lead screw 5 rotatably connected between the inner walls of the two sides of the installation groove 4, a fixing groove opened at the top of the base plate 1, a first motor installed in the fixing groove, the output end of the first motor passing through the fixing groove and fixed to the first lead screw 5, a first slider screwed to the outer wall of the first lead screw 5, the first slider slidably connected in the installation groove 4, a moving plate 6 fixed to the top of the first slider, a clamping mechanism 7 provided at the top of the moving plate 6, a door 3 fixed to one side of the moving plate 6, a first moving mechanism provided between the two ends of the protective shell 2, a second moving mechanism provided on one side of the first moving mechanism, and an impact device provided at the bottom of the second moving mechanism.

[0021] It is important to note that by setting up the protective shell 2 and the box door 3, protection is provided to prevent the sealed shell from breaking during the impact, which would pose a safety threat to the operators and surrounding equipment. In addition, by starting the first motor, the first motor drives the first lead screw 5 to rotate, the rotation of the first lead screw 5 drives the first slider to move, and the movement of the first slider drives the moving plate 6 and the box door 3 to move. This allows the moving plate 6 to be moved to the outside of the protective shell 2, making it convenient for the staff to install the stern shaft sealing device on the moving plate 6 through the clamping mechanism 7.

[0022] like Figure 2 and Figure 3 As shown, the first moving mechanism includes a second lead screw 8 rotatably connected between the inner walls of both ends of the protective shell 2. A second slider 9 is screwed onto the outer wall of the second lead screw 8. A fixing rod 10 is fixed between the inner walls of both ends of the protective shell 2, and the fixing rod 10 passes through the second slider 9. A second motor is fixed to one end of the protective shell 2, and the output end of the second motor passes through the protective shell 2 and is fixed to the second lead screw 8. The second moving mechanism includes a mounting bracket 11 fixed to one side of the second slider 9. A third lead screw 12 is rotatably connected between the inner walls of both sides of the mounting bracket 11. A third slider 13 is screwed onto the outer wall of the third lead screw 12 and is slidably connected inside the mounting bracket 11. A connecting groove is provided at the top of the mounting bracket 11, and a third motor is installed in the connecting groove. The output end of the third motor passes through the mounting bracket 11 and is fixed to the third lead screw 12. A connecting block is fixed to one side of the mounting bracket 11. A limit rod 16 is fixed between the inner walls of both ends of the protective shell 2, and the connecting block slides on the limit rod 16. The impact device includes a cylinder 14 fixed to the bottom of the third slider 13, a fixing member is installed at the output end of the cylinder 14, and an impact block 15 is installed at the bottom end of the fixing member.

[0023] It should be noted that by starting the second motor, the second motor drives the second lead screw 8 to rotate, the rotation of the second lead screw 8 drives the second slider 9 to move, and the movement of the second slider 9 drives the mounting bracket 11 to move left and right, so that the impact block 15 moves left and right. By starting the third motor, the third motor drives the third lead screw 12 to rotate, the rotation of the third lead screw 12 drives the third slider 13 to move, and the movement of the third slider 13 drives the impact block 15 to move back and forth, so that the impact block 15 can perform impact detection on different positions of the sealing device. The cylinder 14 drives the impact block 15 to move downward to impact the sealing device.

[0024] like Figure 4As shown, the clamping mechanism 7 includes two fixed plates 701 fixed to the top of the movable plate 6. A connecting rod 702 is inserted through each of the two fixed plates 701. A mounting plate 703 is fixed to the adjacent ends of each connecting rod 702. A clamping block 704 is mounted on the adjacent ends of each mounting plate 703. A screw 705 is screwed onto each of the two fixed plates 701, and the screw 705 is rotatably connected to the mounting plate 703. A controller is provided at the other end of the protective shell 2, and the controller is electrically connected to the first motor, the second motor, the third motor, and the cylinder 14.

[0025] It should be noted that by rotating the screw 705, the screw 705 drives the clamping block 704 to move, so that the sealing device is fixed between the two clamping blocks 704. In addition, the clamping block 704 is fixed to the mounting plate 703 by the limit bolt. When different sealing devices need to be clamped later, the clamping block 704 can be replaced.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A stern shaft sealing device impact resistance testing device, comprising a base plate (1), characterized in that: A protective shell (2) is fixed at the top of the base plate (1). An installation groove (4) is opened at the top of the base plate (1). A first lead screw (5) is rotatably connected between the inner walls of the two sides of the installation groove (4). A fixing groove is opened at the top of the base plate (1). A first motor is installed in the fixing groove. The output end of the first motor passes through the fixing groove and is fixed to the first lead screw (5). A first slider is screwed to the outer wall of the first lead screw (5). A moving plate (6) is fixed at the top of the first slider. A clamping mechanism (7) is provided at the top of the moving plate (6). A door (3) is fixed on one side of the moving plate (6). A first moving mechanism is provided between the two ends of the protective shell (2). A second moving mechanism is provided on one side of the first moving mechanism. An impact device is provided at the bottom of the second moving mechanism.

2. The impact resistance testing device for a stern shaft sealing device according to claim 1, characterized in that: The first moving mechanism includes a second lead screw (8) rotatably connected between the inner walls of both ends of the protective shell (2). A second slider (9) is screwed onto the outer wall of the second lead screw (8). A fixing rod (10) is fixed between the inner walls of both ends of the protective shell (2). The fixing rod (10) passes through the second slider (9). A second motor is fixed at one end of the protective shell (2). The output end of the second motor passes through the protective shell (2) and is fixed to the second lead screw (8).

3. The impact resistance testing device for a stern shaft sealing device according to claim 1, characterized in that: The second moving mechanism includes a mounting bracket (11) fixed on one side of the second slider (9). A third lead screw (12) is rotatably connected between the inner walls of the two sides of the mounting bracket (11). A third slider (13) is screwed onto the outer wall of the third lead screw (12). A connecting groove is provided at the top of the mounting bracket (11). A third motor is installed in the connecting groove. The output end of the third motor passes through the mounting bracket (11) and is fixed to the third lead screw (12). A connecting block is fixed on one side of the mounting bracket (11). A limit rod (16) is fixed between the inner walls of the two ends of the protective shell (2). The connecting block slides on the limit rod (16).

4. The impact resistance testing device for a stern shaft sealing device according to claim 1, characterized in that: The impact device includes a cylinder (14) fixed to the bottom of the third slider (13), a fixing member is installed at the output end of the cylinder (14), and an impact block (15) is installed at the bottom end of the fixing member.

5. The impact resistance testing device for a stern shaft sealing device according to claim 1, characterized in that: The clamping mechanism (7) includes two fixed plates (701) fixed to the top of the movable plate (6). A connecting rod (702) is inserted through the two fixed plates (701). A mounting plate (703) is fixed to the end of the connecting rod (702) that is close to each other. A clamping block (704) is installed on the end of the mounting plate (703) that is close to each other. A screw (705) is screwed to the two fixed plates (701). The screw (705) is rotatably connected to the mounting plate (703).

6. The impact resistance testing device for a stern shaft sealing device according to claim 1, characterized in that: The other end of the protective shell (2) is provided with a controller, which is electrically connected to the first motor, the second motor, the third motor and the cylinder (14).

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