Stress simulation equipment for production of ship tail shaft coupling

Abstract

The utility model relates to the technical field of ship stern shaft coupling production, in particular to stress simulation equipment for ship stern shaft coupling production, which comprises a base and a rubber pad, the lower end of the base is fixedly connected with the rubber pad, a fixing hole is processed at the upper end of the base, the upper end of the base is fixedly connected with a cylinder, and the cylinder is fixedly connected with the rubber pad. The upper end of the cylinder is fixedly connected with the top seat, and the upper end of the base is connected with a stress mechanism. The coupling is only required to be manually placed into an inner barrel in an outer barrel, the output end of a hydraulic cylinder can drive a downward pressing seat to slide downwards in a cylinder by setting downward pressing force and moving speed generated by the hydraulic cylinder, and the downward pressing seat also drives a connecting barrel on a second disc seat to move downwards, so that a second supporting disc in the connecting barrel and the outer barrel form downward pressing stress; stress simulation for ship stern shaft coupling production is realized, operation is simple and labor-saving, and use experience is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of ship stern shaft coupling production, specifically a force simulation device for ship stern shaft coupling production. Background Technology

[0002] When a ship is moving forward and reversing, the stress on the stern shaft is very different, and the stress on the coupling between the stern shafts is also different. In order to comprehensively examine the reliability of the coupling under forward and reversing conditions, it is necessary to simulate the actual stress conditions on the test bench. Therefore, the test bench needs to be able to provide both forward thrust and reversing thrust at the same time.

[0003] For example, the ship stern shaft coupling force simulation device with authorization announcement number "CN216116746U" solves the problem of uneven force on the stern shaft coupling, which leads to inaccurate force testing, in existing ship stern shaft coupling force simulation devices. The aforementioned device uses a buffer spring and telescopic rod to allow the support block to extend and retract. When the two sets of clamping plates are under force, the support block extends and retracts, which improves the force simulation test of the ship stern shaft coupling. It can also effectively extend and retract the clamping plates inward to test the clamping force of the coupling. Moreover, the structure is simple and the cost is low. Considering that the existing ship stern shaft coupling force simulation devices require manual rotation of the bolt screw to continuously contract and apply force to the clamping plates, the constant manual operation of clamping force is wasteful of energy and reduces the user experience. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing ship stern shaft coupling force simulation devices require constant manual operation of clamping and force application, which wastes effort and reduces the user experience. Therefore, this invention proposes a force simulation device for ship stern shaft coupling production.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a force simulation device for the production of ship stern shaft couplings, comprising a base and a rubber pad, wherein the lower end of the base is fixedly connected to the rubber pad, the upper end of the base is machined with a fixing hole, the upper end of the base is fixedly connected to a cylinder, the upper end of the cylinder is fixedly connected to a top seat, and a force-bearing mechanism is connected to the upper end of the base.

[0006] Preferably, the force-bearing mechanism includes a first disc seat, the lower end of the first disc seat is fixedly connected to the base, the inner wall of the first disc seat is movably connected to the outer cylinder, the inner wall of the outer cylinder is fixedly connected to the inner cylinder, and the inner wall of the outer cylinder is slidably connected to the connecting cylinder.

[0007] Preferably, the inner wall of the connecting cylinder is fixedly connected to the spring, the lower end of the spring is fixedly connected to the inner cylinder, and an adjustment mechanism is connected to the inner wall of the connecting cylinder.

[0008] Preferably, the adjusting mechanism includes a threaded block, the outer wall of which is threadedly connected to the connecting cylinder, the lower end of which is fixedly connected to the first support plate, the inner wall of which is threadedly connected to a threaded column, and the lower end of which is rotatably connected to the second support plate.

[0009] Preferably, the lower end of the top seat is fixedly connected to the hydraulic cylinder, and the output end of the hydraulic cylinder is fixedly connected to the lower pressure seat.

[0010] Preferably, the lower end of the pressure seat is fixedly connected to the second disc seat, and the inner wall of the second disc seat is movably connected to the connecting cylinder.

[0011] The present invention proposes a force simulation device for the production of ship stern shaft couplings. The beneficial effects are as follows: by simply manually placing the coupling into the inner cylinder inside the outer cylinder, and by setting the downward pressure and movement speed generated by the hydraulic cylinder, the output end of the hydraulic cylinder will drive the pressure seat to slide downward on the cylinder. The pressure seat will also drive the connecting cylinder on the second disc seat to move downward, so that the second support disc inside the connecting cylinder forms a downward pressure force with the outer cylinder, thereby simulating the force for the production of ship stern shaft couplings. The operation is simple and labor-saving, and the user experience is improved. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 for Figure 1 Schematic diagram of the structure in a cross-sectional view from the center;

[0014] Figure 3 for Figure 1 Schematic diagram of the mid-side cross-section structure;

[0015] Figure 4 for Figure 2 Enlarged structural diagram at point A in the middle;

[0016] Figure 5 for Figure 2 Enlarged structural diagram at point B;

[0017] Figure 6 for Figure 1 Enlarged structural diagram of the load-bearing mechanism.

[0018] In the diagram: 1. Base, 2. Rubber pad, 3. Fixing hole, 4. Cylinder, 5. Top seat, 6. Force-bearing mechanism, 601. First disc seat, 602. Outer cylinder, 603. Inner cylinder, 604. Connecting cylinder, 7. Spring, 8. Adjusting mechanism, 801. Threaded block, 802. First support plate, 803. Threaded column, 804. Second support plate, 9. Hydraulic cylinder, 10. Lower pressure seat, 11. Second disc seat Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] Example 1:

[0021] Please see Figure 1-6 In this embodiment, a force simulation device for the production of ship stern shaft couplings includes a base 1 and a rubber pad 2. The lower end of the base 1 is fixedly connected to the rubber pad 2. When the lower end of the rubber pad 2 is placed on the ground, the rubber pad 2 deforms and dampens the vibration. The upper end of the base 1 is machined with a fixing hole 3. The upper end of the base 1 is fixedly connected to a cylinder 4. The upper end of the cylinder 4 is fixedly connected to a top seat 5. The upper end of the base 1 is connected to a force-bearing mechanism 6.

[0022] The force-bearing mechanism 6 includes a first disc seat 601, which forms a downward pressure force by sliding up and down between the inner cylinder 603 inside the outer cylinder 602 and the connecting cylinder 604, thereby simulating the force applied in the production of ship stern shaft couplings. The lower end of the first disc seat 601 is fixedly connected to the base 1, the inner wall of the first disc seat 601 is movably connected to the outer cylinder 602, the inner wall of the outer cylinder 602 is fixedly connected to the inner cylinder 603, and the inner wall of the outer cylinder 602 is slidably connected to the connecting cylinder 604.

[0023] The inner wall of the connecting cylinder 604 is fixedly connected to the spring 7, and the lower end of the spring 7 is fixedly connected to the inner cylinder 603. An adjustment mechanism 8 is connected to the inner wall of the connecting cylinder 604. The adjustment mechanism 8 includes a threaded block 801. The distance between the first support plate 802 and the second support plate 804 is adjusted by the threaded column 803, so that the size of the space for force to be applied inside the connecting cylinder 604 and the inner cylinder 603 can be adjusted. The outer wall of the threaded block 801 is threadedly connected to the connecting cylinder 604. The lower end of the threaded block 801 is fixedly connected to the first support plate 802. The inner wall of the first support plate 802 is threadedly connected to the threaded column 803. The lower end of the threaded column 803 is rotatably connected to the second support plate 804.

[0024] Simply insert the coupling into the inner cylinder 603 inside the outer cylinder 602 manually. By setting the downward pressure and movement speed generated by the hydraulic cylinder 9, the output end of the hydraulic cylinder 9 will drive the pressure seat 10 to slide downward on the cylinder 4. The pressure seat 10 will also drive the connecting cylinder 604 on the second disc seat 11 to move downward, so that the second support disc 804 inside the connecting cylinder 604 forms a downward pressure force with the outer cylinder 602, realizing the force simulation for the production of ship stern shaft couplings. The operation is simple and labor-saving, and the user experience is improved.

[0025] Working principle:

[0026] Adjustment phase

[0027] As needed, the threaded column 803 can be screwed onto the first support plate 804 to rotate spirally, thereby adjusting the distance between the first support plate 804 and the second support plate 804, and threading the threaded block 801 on the first support plate 804 to the inside of the connecting cylinder 604. This allows for adjustment of the space between the connecting cylinder 604 and the inner cylinder 603, facilitating stress simulation in the production of ship stern shaft couplings.

[0028] Use phase

[0029] When simulating the stress on a ship's stern shaft coupling during production, the outer cylinders 602 and connecting cylinders 604 at both ends of the force-bearing mechanism 6 are placed on the first disc seat 601 and the second disc seat 11, respectively. After ensuring the stability of the outer cylinders 602 and connecting cylinders 604, the coupling is manually placed into the inner cylinder 603 inside the outer cylinder 602. By setting the downward pressure and movement speed generated by the hydraulic cylinder 9, the output end of the hydraulic cylinder 9 will drive the lower pressure seat 10 to slide downward on the cylinder 4. The lower pressure seat 10 will also drive the connecting cylinder 604 on the second disc seat 11. 04 moves downward, causing the second support plate 804 inside the connecting cylinder 604 to form a downward pressure force with the inner cylinder 603, and the inner cylinder 603 inside the outer cylinder 602 slides up and down, realizing the effect of simulating the force of the ship stern shaft coupling. When the hydraulic cylinder 9 drives the lower pressure seat 10 to slide downward on the cylinder 4, the spring 7 inside the connecting cylinder 604 is squeezed by the inner cylinder 603, and the connecting cylinder 604 and the outer cylinder 602 return to their original state, making it convenient to remove the coupling from the inner cylinder 603 inside the outer cylinder 602.

[0030] Example 2:

[0031] Please see Figure 1-6 In this embodiment, the lower end of the top seat 5 is fixedly connected to the hydraulic cylinder 9. The model of the hydraulic cylinder 9 is determined according to actual needs, as long as it meets the operational requirements. The output end of the hydraulic cylinder 9 is fixedly connected to the lower pressure seat 10. The lower end of the lower pressure seat 10 is fixedly connected to the second disc seat 11. The inner wall of the second disc seat 11 is movably connected to the connecting cylinder 604.

[0032] The outer cylinder 602 and connecting cylinder 604 at both ends of the force-bearing mechanism 6 are placed on the first disc seat 601 and the second disc seat 11 respectively. The grooves inside the first disc seat 601 and the second disc seat 11 restrict the placement of the outer cylinder 602 and the connecting cylinder 604, ensuring the stability of the outer cylinder 602 and the connecting cylinder 604.

[0033] 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 claims and their equivalents.

Claims

1. A force simulation device for manufacturing ship stern shaft couplings, comprising a base (1) and a rubber pad (2), wherein the lower end of the base (1) is fixedly connected to the rubber pad (2), characterized in that: The upper end of the base (1) is machined with a fixing hole (3), the upper end of the base (1) is fixedly connected to the cylinder (4), the upper end of the cylinder (4) is fixedly connected to the top seat (5), and the upper end of the base (1) is connected to a force-bearing mechanism (6). The force-bearing mechanism (6) includes a first disc seat (601), the lower end of the first disc seat (601) is fixedly connected to the base (1), the inner wall of the first disc seat (601) is movably connected to the outer cylinder (602), the inner wall of the outer cylinder (602) is fixedly connected to the inner cylinder (603), and the inner wall of the outer cylinder (602) is slidably connected to the connecting cylinder (604). The inner wall of the connecting cylinder (604) is fixedly connected to the spring (7), the lower end of the spring (7) is fixedly connected to the inner cylinder (603), and the inner wall of the connecting cylinder (604) is connected to an adjustment mechanism (8). The adjusting mechanism (8) includes a threaded block (801), the outer wall of which is threadedly connected to the connecting cylinder (604), the lower end of which is fixedly connected to the first support plate (802), the inner wall of which is threadedly connected to the threaded column (803), and the lower end of which is rotatably connected to the second support plate (804). The lower end of the top seat (5) is fixedly connected to the hydraulic cylinder (9), and the output end of the hydraulic cylinder (9) is fixedly connected to the lower pressure seat (10); The lower end of the pressure seat (10) is fixedly connected to the second disc seat (11), and the inner wall of the second disc seat (11) is movably connected to the connecting cylinder (604).

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