Shafting body vibration detection rapid positioning and supporting device

Abstract

The utility model belongs to the technical field of ship vibration detection, and particularly relates to a shafting body vibration detection rapid positioning and supporting device which comprises a supporting base, a plurality of fixing rings are installed on the supporting base, a circular sliding groove is formed in the inner wall of each fixing ring, and four arc-shaped sliding blocks are arranged in each circular sliding groove. An adjusting assembly is arranged at the end, away from the fixing rings, of each arc-shaped sliding block, arc-shaped plates are arranged on the adjusting assemblies, an arc-shaped groove is formed between every two arc-shaped plates, an arc-shaped movable plate is arranged in each arc-shaped groove, connecting plates are arranged at the tops, the left sides and the right sides of the multiple fixing rings, and a rotating assembly is arranged on each connecting plate; a vibration detector attached to the ship shafting body is arranged on the rotating assembly. The device can carry out vibration detection on ship shafting bodies with different diameters, and the practicability and universality of the device are improved.

Description

Technical Field

[0001] This utility model belongs to the field of ship vibration detection technology, specifically relating to a rapid positioning and support device for shaft vibration detection. Background Technology

[0002] In the modern shipbuilding industry, the proper functioning of the ship's shafting system is crucial to the overall performance and safety of the vessel. Ships navigate in complex and ever-changing marine environments, enduring various dynamic loads and complex mechanical forces, which makes the ship's shafting system prone to vibration problems.

[0003] Traditional ship vibration testing devices are often designed with specific needs in mind, only suitable for ship shafting systems within a certain size range. When faced with shafting systems of significantly different sizes, these devices become inadequate. On one hand, if the fixing components of the testing device are too small, they cannot effectively enclose and secure larger shafting systems, leading to loosening or displacement during testing, thus affecting the accuracy and reliability of the results. On the other hand, if the testing device is designed for larger shafting systems, the fixing components may not fit tightly against smaller shafting systems, causing the shafting system to wobble during testing, which will also result in inaccurate test results.

[0004] Furthermore, since the dimensions of a ship's shafting system are not fixed, slight dimensional changes may occur over long-term use due to wear, deformation, and other reasons. Traditional testing devices lack flexible adjustment mechanisms and cannot be adjusted according to the real-time dimensions of the shafting system, which further limits their applicability and testing effectiveness.

[0005] This reliance on specific dimensions brings numerous inconveniences to ship vibration testing. In actual testing, inspectors often need to equip various specialized testing devices for ship shafting of different sizes, which not only increases testing costs but also occupies a significant amount of storage space. Furthermore, frequent changes to testing devices reduce testing efficiency, prolong testing time, and increase ship maintenance costs and downtime.

[0006] To address this, we propose a rapid positioning and support device for shaft vibration detection. This device can perform vibration detection on ship shafts of different diameters, improving its practicality and versatility. Utility Model Content

[0007] The purpose of this invention is to provide a rapid positioning and support device for shaft vibration detection. This device can perform vibration detection on ship shafts of different diameters, improving its practicality and versatility.

[0008] The specific technical solution adopted in this utility model is as follows:

[0009] A rapid positioning and support device for shaft vibration detection includes a support base with multiple fixing rings installed on it. Each fixing ring has a circular groove on its inner wall and four arc-shaped sliders inside the circular groove. Each arc-shaped slider has an adjustment component at its end away from the fixing ring, and an arc-shaped plate is provided on the adjustment component. An arc-shaped groove is provided between every two arc-shaped plates, and an arc-shaped movable plate is provided inside the arc-shaped groove.

[0010] Each of the fixed rings has a connecting plate on its top, left and right sides, and each connecting plate has a rotating assembly. The rotating assembly is equipped with a vibration detector that fits into the ship's shaft system.

[0011] Furthermore, the circular groove matches the arc-shaped slider.

[0012] Furthermore, the adjustment assembly includes a rotating shaft rotatably mounted on the arc-shaped slider, a rotating disk at the bottom of the rotating shaft, a threaded rod mounted at the bottom of the rotating disk, a connecting rod fixedly mounted on the outer side of the arc-shaped plate, and a threaded groove on the connecting rod that matches the threaded rod.

[0013] Furthermore, a first sliding groove is provided on the outer side of the rotating disk, a fixed shaft is provided inside the first sliding groove, a first slider and a spring are sleeved on the fixed shaft, the bottom of the first slider is connected to the spring, and a locking rod is provided on one side of the first slider. Multiple locking holes are arrayed at the bottom of the arc-shaped slider, and the locking rod matches the locking holes.

[0014] Furthermore, the curved plate is provided with an anti-slip surface.

[0015] Furthermore, the rotating assembly includes a threaded hole formed on the connecting plate, a bolt is disposed inside the threaded hole, and the vibration detector is mounted on the bottom of the bolt.

[0016] The technical effects achieved by this utility model are as follows:

[0017] When conducting ship vibration testing, the ship's shafting is first placed within the area enclosed by the curved plates. Then, the adjustment assembly is activated, causing the curved slider to move within a circular groove. Since the curved slider is connected to the curved plates, its movement causes the four curved plates to move closer or further apart. During this process, the curved movable plates correspondingly extend and retract within the curved grooves, precisely adjusting the diameter of the space enclosed by the four curved plates to ensure a tight fit with the ship's shafting under test, achieving stable fixation. Next, the rotation assembly is manipulated to rotate the vibration detector to a position where it is well-fitted with the ship's shafting. After preparation, external vibration is detected... The force system drives the ship's shafting to rotate. The rotation of the shafting causes the arc plate, adjustment components, and arc slider to rotate synchronously within the circular groove. During the rotation, the vibration generated by the ship's shafting is sensed and collected in real time by a vibration detector. The vibration detector converts the collected vibration signals into electrical signals and transmits them to relevant data processing equipment for analysis and processing. By analyzing this vibration data, the vibration characteristics of the ship's shafting can be accurately assessed, determining whether it is in normal working condition and whether there are potential faults or defects. This device can perform vibration detection on ship shafting of different diameters, improving its practicality and versatility. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the fixing ring of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the vibration detector of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the adjustment component of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Support base; 2. Fixing ring; 3. Circular slide groove; 4. Arc-shaped slider; 5. Arc-shaped plate; 6. Arc-shaped groove; 7. Arc-shaped movable plate; 8. Connecting plate; 9. Vibration detector; 10. Rotary disk; 11. Threaded rod; 12. Connecting rod; 13. Threaded groove; 14. First slide groove; 15. Fixed shaft; 16. First slider; 17. Spring; 18. Locking rod; 19. Locking hole; 20. Bolt. Detailed Implementation

[0024] To make the purpose and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific implementations of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0025] like Figures 1-4 As shown, the specific technical solution adopted in this utility model is as follows: A shaft vibration detection rapid positioning and support device includes a support base 1, a plurality of fixing rings 2 are installed on the support base 1, a circular groove 3 is provided on the inner wall of each fixing ring 2, four arc-shaped sliders 4 are provided inside the circular groove 3, an adjustment component is provided at the end of each arc-shaped slider 4 away from the fixing ring 2, an arc-shaped plate 5 is provided on the adjustment component, an arc groove 6 is provided between every two arc-shaped plates 5, and an arc-shaped movable plate 7 is provided inside the arc groove 6;

[0026] Multiple fixed rings 2 are provided with connecting plates 8 on the top, left and right sides. Each connecting plate 8 is provided with a rotating component, and a vibration detector 9 that fits into the ship's shaft system is provided on the rotating component.

[0027] Among the various aspects of ship inspection, the inspection of the power system (i.e., the ship's shafting) is the primary and crucial step. This inspection is paramount because the ship's shafting, as a vital component of the main thrust unit, is responsible for connecting the main engine and the propeller, transmitting the main engine's output power to the propeller, and propelling the ship forward or backward. The ship's shafting mainly includes drive shafts and bearings. Drive shafts: This is the core part of the ship's shafting, responsible for transmitting the main engine's power. Drive shafts mainly include thrust shafts, intermediate shafts, and stern shafts. The thrust shaft is connected to the main engine, transmitting its power; the intermediate shaft is located between the thrust shaft and the stern shaft, serving as a transmission and transition; the stern shaft is directly connected to the propeller, transmitting power to the propeller and propelling the ship forward. Bearings: Bearings support the drive shafts and reduce friction and wear during operation. The bearings in the ship's shafting mainly include thrust bearings, intermediate bearings, and stern bearings, which correspond to the thrust shaft, intermediate shaft, and stern shaft, respectively, providing necessary support and lubrication for the operation of these shafts. Therefore, the ship's shafting is of utmost importance during ship vibration testing.

[0028] Meanwhile, the circular groove 3 is matched with the arc-shaped slider 4. This arrangement allows the arc-shaped slider 4 to move smoothly inside the circular groove 3 without any jamming.

[0029] The adjustment assembly includes a rotating shaft rotatably mounted on the arc-shaped slider 4. A rotating disk 10 is located at the bottom of the rotating shaft, and a threaded rod 11 is mounted on the bottom of the rotating disk 10. A connecting rod 12 is fixedly mounted on the outer side of the arc-shaped plate 5. The connecting rod 12 has a threaded groove 13 that matches the threaded rod 11. During adjustment, the rotating disk 10 is rotated manually or with the aid of tools. The rotation of the rotating disk 10 drives the rotating shaft connected to it to rotate as well. Since the rotating shaft and the arc-shaped slider 4 are rotatably connected, the rotation of the rotating shaft does not drive the arc-shaped slider 4 to rotate. When the 0 rotates, the threaded rod 11 installed at its bottom also rotates. Since the threaded rod 11 matches the threaded groove 13 opened on the connecting rod 12, when the threaded rod 11 rotates, under the action of the thread, the threaded rod 11 will move along the direction of the threaded groove 13. Because the connecting rod 12 is fixedly connected to the arc plate 5, the movement of the threaded rod 11 will drive the arc-shaped slider 4 to move in the circular groove 3, thereby changing the position of the arc plate 5 and realizing the adjustment of the diameter of the space enclosed by the arc plate 5 to adapt to and fix ship shafting bodies of different sizes.

[0030] Furthermore, a first groove 14 is provided on the outer side of the rotating disk 10, and a fixed shaft 15 is provided inside the first groove 14. A first slider 16 and a spring 17 are sleeved on the fixed shaft 15. The bottom of the first slider 16 is connected to the spring 17, and a locking rod 18 is provided on one side of the first slider 16. Multiple locking holes 19 are arrayed at the bottom of the arc-shaped slider 4, and the locking rod 18 matches the locking holes 19. Before the arc-shaped plate 5 fixes the ship's shaft system, the locking rod 18 is pulled out from the locking hole 19, which drives the first slider 16 to squeeze the spring 17, thereby causing the rotating disk 10 to rotate. After rotation, the spring force of the spring 17 causes the slider to drive the locking rod 18 into the locking hole 19 for locking, thereby preventing the rotating disk 10 from rotating during rotation and causing a decrease in detection accuracy.

[0031] Furthermore, the curved plate 5 is provided with an anti-slip surface, which can improve the fixing effect.

[0032] The rotating assembly includes a threaded hole on the connecting plate 8, with a bolt 20 installed inside the threaded hole. A vibration detector 9 is mounted on the bottom of the bolt 20. The bolt 20 is rotated within the threaded hole to move, thereby bringing the vibration detector 9 into contact with the ship's shaft system for vibration monitoring.

[0033] Furthermore, the vibration detector 9 is model CZJ-B2 intelligent vibration detector. This is an intelligent instrument that, in conjunction with the SZ-6 magnetoelectric velocity sensor, can continuously monitor and measure the amplitude and intensity of bearing vibration in various rotating machinery. This is existing technology and will not be elaborated upon here.

[0034] The working principle of this utility model is as follows: When conducting ship vibration testing, the ship's shafting is first placed within the area enclosed by the arc-shaped plates 5. Then, the adjustment assembly is activated, causing the arc-shaped slider 4 to move within the circular groove 3. Since the arc-shaped slider 4 is connected to the arc-shaped plates 5, the movement of the slider 4 causes the four arc-shaped plates 5 to move closer or further apart. During this process, the arc-shaped movable plate 7 moves accordingly within the arc-shaped groove 6, thereby precisely adjusting the diameter of the space enclosed by the four arc-shaped plates 5, ensuring a tight fit with the ship's shafting being tested and achieving stable fixation. Next, the rotation assembly is operated to rotate the vibration detector 9 to a position where it fits well with the ship's shafting, completing the preparation work. Subsequently, the ship's shafting is driven to rotate by an external power system. The rotation of the ship's shafting causes the arc plate 5, the adjustment component, and the arc slider 4 to rotate synchronously in the circular groove 3. During the rotation, the vibration generated by the ship's shafting is sensed and collected in real time by the vibration detector 9. The vibration detector 9 converts the collected vibration signal into an electrical signal and transmits it to the relevant data processing equipment for analysis and processing. By analyzing these vibration data, the vibration characteristics of the ship's shafting can be accurately assessed, and it can be determined whether it is in normal working condition and whether there are potential faults or defects. This device can perform vibration detection on ship shafting of different diameters, improving its practicality and versatility.

[0035] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the art.

Claims

1. A rapid positioning and support device for shaft vibration detection, comprising a support base (1), characterized in that: The support base (1) is equipped with multiple fixing rings (2). Each fixing ring (2) has a circular groove (3) on its inner wall. The circular groove (3) is equipped with four arc-shaped sliders (4). Each arc-shaped slider (4) has an adjustment component at one end away from the fixing ring (2). The adjustment component is equipped with an arc-shaped plate (5). An arc-shaped groove (6) is provided between every two arc-shaped plates (5). An arc-shaped movable plate (7) is provided inside the arc-shaped groove (6). Each of the fixed rings (2) is provided with a connecting plate (8) on its top, left and right sides. Each connecting plate (8) is provided with a rotating component, and the rotating component is provided with a vibration detector (9) that fits into the ship's shaft system.

2. The shaft vibration detection, rapid positioning, and support device according to claim 1, characterized in that: The circular groove (3) matches the arc-shaped slider (4).

3. The shaft vibration detection, rapid positioning, and support device according to claim 1, characterized in that: The adjustment assembly includes a rotating shaft rotatably mounted on the arc-shaped slider (4), a rotating disk (10) at the bottom of the rotating shaft, a threaded rod (11) mounted at the bottom of the rotating disk (10), a connecting rod (12) fixedly mounted on the outer side of the arc-shaped plate (5), and a threaded groove (13) matching the threaded rod (11) on the connecting rod (12).

4. The shaft vibration detection rapid positioning and support device according to claim 3, characterized in that: The rotating disk (10) has a first groove (14) on its outer side. A fixed shaft (15) is provided inside the first groove (14). A first slider (16) and a spring (17) are sleeved on the fixed shaft (15). The bottom of the first slider (16) is connected to the spring (17). A locking rod (18) is provided on one side of the first slider (16). The bottom of the arc-shaped slider (4) has multiple locking holes (19) arranged in an array. The locking rod (18) matches the locking holes (19).

5. The shaft vibration detection, rapid positioning, and support device according to claim 1, characterized in that: The arc-shaped plate (5) is provided with an anti-slip surface.

6. The shaft vibration detection rapid positioning and support device according to claim 1, characterized in that: The rotating assembly includes a threaded hole on the connecting plate (8), a bolt (20) is provided inside the threaded hole, and the vibration detector (9) is installed at the bottom of the bolt (20).

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