Vibration noise rapid test and evaluation device
By designing a rapid vibration and noise testing and evaluation device, and utilizing structures such as an operating cylinder and an adjustment frame, the problem of cumbersome testing of vibration isolation structures for marine equipment has been solved, achieving convenient and efficient vibration and noise testing.
Patent Information
- Application Number
- CN202423219600.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Existing technologies for testing the vibration reduction and noise reduction performance of marine equipment vibration isolation structures are cumbersome, have low testing efficiency, and are inconvenient to operate for testing the raft structure at the bottom of marine equipment.
A rapid vibration and noise testing and evaluation device was designed, including an operating cylinder, a movable tube, a support sleeve, and an adjustment frame. The device allows for testing by inserting the handheld operating cylinder into the bottom of the equipment or into a narrow space. The elastic tube and adjustment frame are used to adjust the orientation and stability of the test end, thereby improving the convenience and stability of the test.
It enables convenient testing of the bottom of ship equipment and narrow spaces, improves testing efficiency and stability, and simplifies the operation process.
Smart Images
Figure CN223623693U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of ship vibration and noise testing equipment, specifically a rapid vibration and noise testing and evaluation device. Background Technology
[0002] As a complex, elastic structure, the ship's hull is subject to varying degrees of vibration from its various parts under the influence of forces such as propulsion equipment and wind and waves. Propulsion equipment generates vibration and noise during operation, and its vibrational energy propagates outward through the substrate or other equipment it contacts. Excessive vibration can affect the performance and lifespan of the equipment itself, while also increasing noise levels inside the ship and reducing passenger comfort. Therefore, it is essential to actively isolate and protect against vibration and noise generated by propulsion equipment during the design and construction of ships and marine engineering projects.
[0003] Shipboard vibration reduction and isolation systems mainly consist of equipment, rafts, isolators, and bases. The operation of mechanical equipment is a significant cause of localized vibrations, cabin noise, and underwater radiated noise on ships. Evaluating the vibration reduction and isolation performance of this equipment, and obtaining actual ship vibration response, cabin noise, and underwater radiated noise data, is crucial for understanding the acoustic state of each vibration reduction and isolation system during operation and for determining tactical strategies. However, current methods for testing the vibration reduction and noise reduction performance of shipboard equipment vibration isolation structures are cumbersome, requiring testing at different locations on each piece of equipment, followed by analysis and comparison of the results. This results in low testing efficiency. Furthermore, the raft structure at the bottom of the shipboard equipment, serving as the connection between the equipment and the hull, offers limited testing opportunities, making bottom-level testing inconvenient.
[0004] Therefore, there is a need for a rapid testing and evaluation device for vibration and noise that is easy to operate and convenient to detect. Utility Model Content
[0005] To address the aforementioned problems, this invention proposes a rapid vibration and noise testing and evaluation device, which features convenient, fast, and highly practical testing capabilities.
[0006] To achieve the above objectives, the present invention proposes the following specific solutions:
[0007] A rapid vibration and noise testing and evaluation device includes an operating cylinder. A testing device is fixedly sleeved on the outer side of one end of the operating cylinder. A movable tube passes through the inner side of the operating cylinder. A test end is fixedly connected to one end of the movable tube. The movable tube includes a first elastic tube and a transmission line. The first elastic tube passes through the operating cylinder. One end of the first elastic tube is fixed to the bottom of the test end. The transmission line is sleeved on the inner side of the first elastic tube. One end of the transmission line is electrically connected to the bottom of the test end. The other end of the transmission line passes through the first elastic tube and is electrically connected to the bottom of the testing device. A support sleeve is sleeved on the outer side of the test end. A second elastic tube is connected through the bottom of the support sleeve. One end of the second elastic tube is connected through to one end of the operating cylinder. The first elastic tube passes through the second elastic tube and the support sleeve.
[0008] As a preferred technical solution of the vibration and noise rapid testing and evaluation device of this utility model, the outer wall of the operating cylinder is symmetrically provided with sliding grooves, one side of the sliding groove is connected to a connecting groove, and the two sides of the operating cylinder are symmetrically provided with adjustment frames, one end of the adjustment frame is located inside the sliding groove.
[0009] As a preferred technical solution of the vibration and noise rapid testing and evaluation device of this utility model, the adjustment frame includes a support rod, a first collar, a second screw, a limiting plate, a first nut, and a second collar. One end of the support rod is fixedly connected to the first collar, and the second screw is provided through the inner side of the first collar. One end of the second screw is fixedly connected to the limiting plate, which is located inside the slide groove. The second screw passes through the connecting groove, and the outer side of one end of the second screw is threadedly connected to the first nut. The other end of the support rod is fixedly connected to the second collar.
[0010] As a preferred technical solution of the vibration and noise rapid testing and evaluation device of this utility model, the support sleeve includes a guide cylinder, a limiting ring and a first screw. The limiting ring is fixed on the top edge of the guide cylinder, the test end is located inside the limiting ring, one end of the second elastic tube is fixedly connected to the bottom of the guide cylinder, one end of the first elastic tube passes through the guide cylinder, the first screw is symmetrically fixed on the outer wall of the guide cylinder, the second sleeve is sleeved on the outside of the first screw, and one end of the first screw is threadedly connected to a second nut.
[0011] As a preferred technical solution of the vibration and noise rapid testing and evaluation device of this utility model, the outer ring size of the first elastic tube is adapted to the inner side size of the operating cylinder, and the outer ring size of the first elastic tube is adapted to the inner side size of the guide cylinder.
[0012] As a preferred technical solution of the vibration and noise rapid testing and evaluation device of this utility model, a push ring is fixedly connected to the outer wall of one end of the first elastic tube.
[0013] As a preferred technical solution of the vibration and noise rapid testing and evaluation device of this utility model, a handle is fixed to the outer wall of one end of the operating cylinder, a fixed cylinder is fixed to the bottom of the testing device, the fixed cylinder is sleeved on the outside of the operating cylinder, and a fixing bolt is provided through the fixed cylinder.
[0014] Compared with existing technologies, this utility model has the following advantages:
[0015] This invention, through the design of an operating cylinder, a movable tube, a second elastic sleeve, and a support sleeve, allows for vibration and noise testing of ship equipment using testing equipment. The first elastic tube of the movable tube passes through the operating cylinder, the second elastic sleeve, and the support sleeve, and is fixedly connected to the test end inside the support sleeve. The transmission line at the bottom of the test tube passes through the first elastic tube and connects to the testing equipment. Testers can hold the operating cylinder and insert the test end into the bottom of the ship equipment or some narrow spaces to conduct vibration and noise testing, which is more convenient than current methods where personnel hold the test end by hand. Furthermore, testers can adjust the orientation of the test end by bending the second elastic tube to adjust the orientation of the support sleeve, facilitating testing at various locations on the bottom of the equipment. Additionally, testers can push the first elastic tube inside the operating cylinder to lift the test end at the other end, allowing the test end to be placed against the equipment from different angles for testing, greatly improving testing convenience.
[0016] Furthermore, symmetrical adjustment frames are set on both sides of the operating cylinder through the setting of adjustment frames. One end of the adjustment frame is movably connected to the operating cylinder and can move and rotate on the outer wall of the operating cylinder. The other end of the adjustment frame is movably connected to the support sleeve and can rotate on the support sleeve. With the support of the adjustment frame, after adjusting the orientation of the support sleeve, the two ends of the adjustment frame can be fixed to the operating cylinder and the support sleeve respectively by tightening the nuts at both ends of the adjustment frame. This allows the support sleeve to be stably maintained in the adjusted state, improving the stability of the test and making the operation convenient. Attached Figure Description
[0017] To better describe the technical solution of this utility model in detail, the present invention will be further described below with reference to the accompanying drawings and embodiments.
[0018] Figure 1 This is a schematic diagram of the overall structure provided by this utility model;
[0019] Figure 2 This is a partial cross-sectional view of the present invention;
[0020] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle;
[0021] Figure 4 This is a three-dimensional sectional view of the present invention;
[0022] Figure 5 For the present utility model Figure 5 Enlarged view of point B in the middle;
[0023] Figure 6 For the present utility model Figure 5 Enlarged diagram of point C in the middle.
[0024] In the diagram: 1. Operating cylinder; 11. Handle; 12. Slide groove; 13. Connecting groove; 2. Testing equipment; 21. Fixed cylinder; 22. Fixed bolt; 3. Moving tube; 31. First elastic tube; 32. Pushing ring; 33. Transmission line; 4. Testing end; 5. Support sleeve; 51. Guide cylinder; 52. Limiting ring; 53. First screw; 6. Adjusting frame; 61. Support rod; 62. First collar; 63. Second screw; 64. Limiting plate; 65. First nut; 66. Second collar; 67. Second nut; 7. Second elastic tube. Detailed Implementation
[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model. Example
[0026] Please see Figure 1-6 As shown, this utility model provides the following technical solution: a rapid vibration and noise testing and evaluation device, including an operating cylinder 1, with a testing device 2 fixedly sleeved on the outer side of one end of the operating cylinder 1. The testing device 2 can receive test information and display test results. It is a common vibration and noise testing instrument, and its specific structure and operating principle are not described in detail here. A handle 11 is fixed to the outer wall of one end of the operating cylinder 1. A fixing cylinder 21 is fixed to the bottom of the testing device 2. The fixing cylinder 21 is sleeved on the outer side of the operating cylinder 1. A fixing bolt 22 is provided through the fixing cylinder 21. Tightening the fixing bolt 22 can fix the fixing cylinder 21 to the outer side of the operating cylinder 1, which facilitates the assembly and disassembly of the testing device 2. Refer to the attached drawing. Figure 1 and attached Figure 2The operating cylinder 1 has a movable tube 3 running through its inner side. One end of the movable tube 3 is fixedly connected to a test end 4, which can contact the ship's equipment for vibration and noise testing. The movable tube 3 includes a first elastic tube 31 and a transmission line 33. The first elastic tube 31 runs through the operating cylinder 1, and one end of the first elastic tube 31 is fixed to the bottom of the test end 4. The transmission line 33 is sleeved on the inner side of the first elastic tube 31. One end of the transmission line 33 is electrically connected to the bottom of the test end 4, and the other end of the transmission line 33 runs through the first elastic tube 31 and is electrically connected to the bottom of the testing device 2. This solution supports the testing device 2 and the test end 4 through the operating cylinder 1. When conducting vibration and noise testing on the ship's equipment, the tester can easily insert the test end 4 into the bottom of the equipment or a narrow part of the equipment by holding the operating cylinder 1, which is faster and more convenient than the current method of testing by holding the test end 4 by hand.
[0027] Reference Figure 2 and Figure 3 As shown, specifically, a support sleeve 5 is sleeved on the outer side of the test end 4. A second elastic tube 7 is connected through the bottom of the support sleeve 5. The second elastic tube 7 is made of elastic material and can be bent. One end of the second elastic tube 7 is connected through to one end of the operating cylinder 1. A first elastic tube 31 passes through the second elastic tube 7 and the support sleeve 5. The support sleeve 5 includes a guide cylinder 51, a limiting ring 52, and a first screw 53. The limiting ring 52 is fixed to the top edge of the guide cylinder 51. The test end 4 is located inside the limiting ring 52. One end of the second elastic tube 7 is fixedly connected to the bottom of the guide cylinder 51. One end of the first elastic tube 31 passes through the guide cylinder 51. The outer ring size of the first elastic tube 31 is adapted to the inner ring size of the operating cylinder 1. The inner dimensions of the guide tube 51 are adapted to the inner dimensions of the guide tube 7, allowing the first elastic tube 31 to move stably inside the second elastic tube 7 and the guide tube 51. A push ring 32 is fixedly connected to the outer wall of one end of the first elastic tube 31, which can easily push the first elastic tube 31. In this scheme, when the tester holds the operating tube 1 and inserts the test end 4 into the bottom of the equipment for testing, the tester can bend the second elastic tube 7 in advance to adjust the orientation of the support sleeve 5. During the test, the push ring 32 can be used to push the first elastic tube 31 inside the operating tube 1, thereby lifting the test end 4 at the other end. The first elastic tube 31 has a certain support capacity, which is convenient for supporting the test end 4 to test the equipment from different positions and angles, overcoming complex testing environments and achieving good testing results.
[0028] Reference Figure 4 , Figure 5 and Figure 6As shown, specifically, the outer wall of the operating cylinder 1 is symmetrically provided with sliding grooves 12, and a connecting groove 13 is connected through one side of the sliding groove 12. Adjusting frames 6 are symmetrically provided on both sides of the operating cylinder 1, with one end of the adjusting frame 6 located inside the sliding groove 12. The adjusting frame 6 includes a support rod 61, a first collar 62, a second screw 63, a limiting plate 64, a first nut 65, and a second collar 66. One end of the support rod 61 is fixedly connected to the first collar 62, and the second screw 63 passes through the inner side of the first collar 62. One end of the second screw 63 is fixedly connected to the limiting plate 64, which is located inside the sliding groove 12, allowing one end of the adjusting frame 6 to move within the sliding groove 12. The second screw 63 passes through the connecting groove 13, and the outer side of one end of the second screw 63 is threadedly connected to the first nut 65. Tightening the first nut 65 fixes one end of the adjusting frame 6. The other end of the support rod 61 is fixedly connected to a second collar 66; the outer wall of the guide cylinder 51 is symmetrically fixed with a first screw 53, and the second collar 66 is sleeved on the outside of the first screw 53. The inner dimension of the collar is larger than the dimension of the screw, which allows for easy rotation. One end of the first screw 53 is threadedly connected to a second nut 67. Tightening the second nut 67 can fix the other end of the adjusting frame 6. In this scheme, the adjusting frame 6 moves with the support sleeve 5 when the second elastic tube 7 is bent and the test direction is adjusted. The tester can tighten the nuts at both ends of the adjusting frame 6 to fix the two ends of the adjusting frame 6 to the operating cylinder 1 and the support sleeve 5 respectively, so that the support rod 61 can stably position the support sleeve 5, improve the stability of the support sleeve 5 after adjustment, and thus improve the stability of the test. It is highly practical.
[0029] The working principle and usage process of this utility model are as follows: When testing the vibration and noise of ship equipment, the operator holds the operating cylinder 1 and inserts the test end 4 into the bottom of the equipment or some narrow gaps in the equipment for testing. The test results are observed through the testing equipment 2. During the test, the operator can adjust the support sleeve 5 and the inner test end 4 by bending the second elastic tube 7 at one end of the operating cylinder 1, so that the test end 4 can be adjusted to different positions, facilitating testing of the equipment from multiple angles. At the same time, after adjustment, the operator tightens the nuts at both ends of the adjusting frame 6 to achieve stable support of the support sleeve 5 by the adjusting frame 6, making the test more stable. In addition, during the test, the operator can push the pushing ring 32 at one end of the first elastic tube 31, so that the first elastic tube 31 can move inside the operating cylinder 1, thereby lifting the test end 4 at the other end, overcoming the complex testing environment, improving the testing effect, and making the operation convenient.
[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A rapid vibration and noise testing and evaluation device, comprising an operating cylinder (1), characterized in that: The operating cylinder (1) has a test device (2) fixedly sleeved on the outer side of one end. A moving tube (3) passes through the inner side of the operating cylinder (1). A test end (4) is fixedly connected to one end of the moving tube (3). The moving tube (3) includes a first elastic tube (31) and a transmission line (33). The first elastic tube (31) passes through the operating cylinder (1). One end of the first elastic tube (31) is fixed to the bottom of the test end (4). A transmission line (33) is sleeved on the inner side of the first elastic tube (31). One end of the transmission line (3) is electrically connected to the bottom of the test end (4), and the other end of the transmission line (33) passes through the first elastic tube (31). The other end of the transmission line (33) is electrically connected to the bottom of the test device (2). A support sleeve (5) is sleeved on the outside of the test end (4). A second elastic tube (7) is connected through the bottom of the support sleeve (5). One end of the second elastic tube (7) is connected through the end of the operating cylinder (1). The first elastic tube (31) passes through the second elastic tube (7) and the support sleeve (5).
2. The vibration and noise rapid testing and evaluation device according to claim 1, characterized in that: The outer wall of the operating cylinder (1) is symmetrically provided with sliding grooves (12), and a connecting groove (13) is connected through one side of the sliding groove (12). Adjusting frames (6) are symmetrically provided on both sides of the operating cylinder (1), and one end of the adjusting frame (6) is located inside the sliding groove (12).
3. The vibration and noise rapid testing and evaluation device according to claim 2, characterized in that: The adjusting frame (6) includes a support rod (61), a first collar (62), a second screw (63), a limiting plate (64), a first nut (65), and a second collar (66). One end of the support rod (61) is fixedly connected to the first collar (62). The second screw (63) is provided through the inner side of the first collar (62). One end of the second screw (63) is fixedly connected to the limiting plate (64). The limiting plate (64) is located inside the slide groove (12). The second screw (63) passes through the connecting groove (13). One end of the second screw (63) is threadedly connected to the first nut (65). The other end of the support rod (61) is fixedly connected to the second collar (66).
4. The vibration and noise rapid testing and evaluation device according to claim 3, characterized in that: The support sleeve (5) includes a guide cylinder (51), a limiting ring (52) and a first screw (53). The limiting ring (52) is fixed on the top edge of the guide cylinder (51). The test end (4) is located inside the limiting ring (52). One end of the second elastic tube (7) is fixedly connected to the bottom of the guide cylinder (51). One end of the first elastic tube (31) passes through the guide cylinder (51). The first screw (53) is symmetrically fixed on the outer wall of the guide cylinder (51). The second sleeve (66) is sleeved on the outside of the first screw (53). One end of the first screw (53) is threadedly connected to a second nut (67).
5. The vibration and noise rapid testing and evaluation device according to claim 4, characterized in that: The outer ring size of the first elastic tube (31) is adapted to the inner side size of the operating cylinder (1), and the outer ring size of the first elastic tube (31) is adapted to the inner side size of the guide cylinder (51).
6. The vibration and noise rapid testing and evaluation device according to claim 5, characterized in that: A push ring (32) is fixedly connected to the outer wall of one end of the first elastic tube (31).
7. The vibration and noise rapid testing and evaluation device according to claim 6, characterized in that: A handle (11) is fixed to the outer wall of one end of the operating cylinder (1), and a fixing cylinder (21) is fixed to the bottom of the testing device (2). The fixing cylinder (21) is sleeved on the outside of the operating cylinder (1), and a fixing bolt (22) is provided through the fixing cylinder (21).