Horizontal floating raft vibration isolation device
By employing a combination design of wire rope loops, sound-absorbing tiles, and damping shock absorbers in the floating raft vibration isolation device, the problem of insufficient vibration isolation at the top of the floating raft in the existing technology has been solved, achieving a more comprehensive vibration isolation and noise reduction effect.
Patent Information
- Application Number
- CN202511189107.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-25
- Publication Date
- 2025-11-14
AI Technical Summary
Existing raft vibration isolation devices have a relatively limited vibration isolation effect at the bottom of the raft, making it difficult to effectively isolate the top of the raft, resulting in incomplete vibration isolation.
Multiple vibration isolation methods are employed, including wire rope rings, sound-absorbing tiles, and damping shock absorbers. The vibration energy is consumed through the friction and slippage of the wire rope rings, the sound-absorbing tiles convert sound energy into heat energy, and the damping shock absorbers absorb vibrations, thus achieving a multi-layer vibration isolation effect.
It enhances the vibration isolation effect of the floating raft, effectively reducing the impact of vibration and noise on the top of the raft, and improving the comprehensiveness of vibration isolation and noise reduction capabilities.
Smart Images
Figure CN120946725A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of floating raft vibration isolation technology, and particularly relates to a horizontal floating raft vibration isolation device. Background Technology
[0002] A floating raft vibration isolation device is a vibration isolation device used for buildings or mechanical equipment. Its design principle is to isolate the building or equipment from the foundation through vibration damping materials and structures, thereby reducing the impact of external vibrations on the building or equipment.
[0003] In the existing technology, most floating raft vibration isolation devices use vibration isolators to isolate the bottom of the floating raft. Not only is the vibration isolation method relatively simple, resulting in a lack of vibration isolation effect, but it is also difficult to isolate the top of the floating raft, making the vibration isolation insufficient.
[0004] Therefore, a horizontal floating raft vibration isolation device is proposed. Summary of the Invention
[0005] To address the aforementioned technical problems, this invention proposes a horizontal floating raft vibration isolation device.
[0006] To achieve the above objectives, the present invention provides a horizontal floating raft vibration isolation device, comprising:
[0007] Main body of the raft;
[0008] The first vibration isolation component is detachably connected to both sides of the lower end of the raft body via a fixing component. The first vibration isolation component is movably provided with several wire rope loops, and the first vibration isolation component isolates vibration through several wire rope loops.
[0009] The second vibration isolation component includes multiple sound-absorbing tiles, which are glued to the upper end of the raft body, and the bottom surface of the multiple sound-absorbing tiles has multiple cavities.
[0010] The third vibration isolation component is fixedly connected to the lower end of the main body of the raft.
[0011] The base, the bottom of the first vibration isolation component and the third vibration isolation component are both fixedly connected to the base.
[0012] According to the present invention, a horizontal floating raft vibration isolation device is provided, wherein the first vibration isolation component includes a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are detachably connected by a first locking screw, a plurality of steel wire rope loops are equidistantly arranged between the first clamping plate and the second clamping plate, the top of the first clamping plate is fixedly connected to the bottom of the fixing component; the bottom of the plurality of second clamping plates located below are all fixedly connected to the base.
[0013] According to the present invention, a horizontal floating raft vibration isolation device is provided, wherein the fixing component includes a mounting base, the mounting base is fixedly connected to the top of the first clamping plate at the top, the upper end of the mounting base is fixedly connected to a mounting block, and the mounting block is symmetrically slidably connected to two limiting blocks in the axial direction; the bottom surface of the floating raft body is provided with a mounting groove corresponding to the mounting block, and the inner wall of the mounting groove is symmetrically provided with limiting grooves at both ends; the mounting block is adapted to the mounting groove, and the limiting block is adapted to the limiting groove.
[0014] According to the present invention, a horizontal floating raft vibration isolation device is provided, wherein a groove is provided at the outer end of the mounting base, a first guide rod is fixedly connected in the groove, two sliders are slidably connected to the outside of the first guide rod, the outer ends of the two sliders pass through the groove and are fixedly connected to a pull block, a return spring is sleeved on the first guide rod between the two sliders, and the two ends of the return spring abut against the side wall of the slider; a bracket is fixedly connected to the top of the slider, the bracket passes through the bottom of the mounting base and the mounting block and is fixedly connected to the limiting block, and a space is provided in the mounting base and the mounting block for the limiting block and the bracket to move.
[0015] According to the present invention, a horizontal floating raft vibration isolation device is provided, wherein a second guide rod is fixedly connected inside the mounting base, and two guide blocks are slidably connected outside the second guide rod, and the two guide blocks are respectively fixedly connected to the two brackets one-to-one.
[0016] According to the present invention, a horizontal floating raft vibration isolation device is provided, wherein the mounting block has mounting plates protruding at both ends, and the mounting plates are fastened to the bottom of the floating raft body by a second locking screw.
[0017] According to the present invention, a horizontal floating raft vibration isolation device is provided, wherein the third vibration isolation component includes a plurality of damping shock absorbers, the plurality of damping shock absorbers are fixedly connected to the upper end of the base, and the telescopic ends of the damping shock absorbers are fixedly connected to the bottom of the floating raft body.
[0018] According to the present invention, a horizontal floating raft vibration isolation device is provided, wherein a damping spring is externally movably connected to the damping shock absorber, one end of the damping spring is fixedly connected to the bottom of the floating raft body, and the other end is fixedly connected to the base.
[0019] Compared with the prior art, the present invention has the following advantages and technical effects:
[0020] 1. By setting the first vibration isolation component, the wire rope ring is made of multiple strands of steel wire. When the equipment vibrates, the wire rope ring deforms and the vibration energy passing through the wire rope ring is consumed through the friction and slippage between the steel wires, thereby achieving an effective buffering and vibration isolation effect. This device uses multiple vibration isolation methods to enhance the vibration isolation effect.
[0021] 2. By installing sound-absorbing tiles, which are made of rubber material and have a cavity structure at the bottom, the sound energy can be converted into heat energy and consumed when the equipment vibrates and generates noise. They can also isolate the top of the floating raft body, thereby further playing the role of vibration isolation and noise reduction, and further enhancing the vibration isolation effect of this device. Attached Figure Description
[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:
[0023] Figure 1 This is a schematic diagram of the overall structure in this embodiment;
[0024] Figure 2 This is a schematic diagram of the structure of the first vibration isolation component and the fixing component in this embodiment;
[0025] Figure 3 This is a partial structural diagram of the fixing component in this embodiment;
[0026] Figure 4 This is a schematic diagram of the structure of the second vibration isolation component in this embodiment;
[0027] Figure 5 This is a schematic diagram of the mounting slot in this embodiment;
[0028] Figure 6 This is a schematic diagram of the structure of the third vibration isolation component in this embodiment.
[0029] In the diagram: 1. Main body of the raft; 2. First vibration isolation component; 201. First clamping plate; 202. Second clamping plate; 203. First locking screw; 204. Wire rope ring; 3. Second vibration isolation component; 301. Sound-absorbing tile; 302. Cavity; 4. Fixing component; 401. Mounting groove; 402. Limiting groove; 403. Mounting base; 404. Mounting block; 405. Slide groove; 406. First guide rod; 407. Slider; 408. Pull block; 409. Return spring; 410. Bracket; 411. Limiting block; 412. Second guide rod; 413. Guide block; 414. Mounting piece; 415. Second locking screw; 5. Third vibration isolation component; 501. Damping shock absorber; 502. Shock-absorbing spring; 6. Base. Detailed Implementation
[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0031] A horizontally mounted floating raft vibration isolation device is a device used to reduce the transmission of vibrations from mechanical equipment. It is mainly based on the principle of vibration isolation, which involves setting up a multi-layer vibration isolation system between the equipment (such as power machinery and precision instruments on ships) and the foundation structure to isolate and attenuate the vibration energy generated by the equipment, thereby reducing the impact of vibration on the surrounding environment and other equipment.
[0032] Its basic structure resembles a raft, on which the equipment is installed. The raft is connected to the foundation via elastic elements (such as rubber vibration isolators and springs). When the equipment vibrates, the vibration waves pass through these elastic elements before reaching the foundation. These elements undergo elastic deformation, absorbing and dissipating some of the vibration energy, thus significantly reducing the vibration transmitted to the foundation.
[0033] The raft body is the main component that carries the equipment, and it is generally a metal structure (such as a frame structure welded from steel plates). It needs to have sufficient strength and rigidity to support the weight of the equipment and ensure that it does not deform excessively when the equipment vibrates during operation. The shape and size of the raft body are designed according to the type, quantity, and layout of the equipment to be installed. For example, on a ship, the raft body may be a large rectangular frame to accommodate the installation of multiple power units.
[0034] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0035] Reference Figure 1 , Figure 2 and Figure 4 As shown, this embodiment provides a horizontal floating raft vibration isolation device, including:
[0036] Floating raft main body 1;
[0037] The first vibration isolation component 2 is detachably connected to both sides of the lower end of the raft body 1 via the fixing component 4. The first vibration isolation component 2 is movably provided with several wire rope rings 204, and the first vibration isolation component 2 isolates vibration through the several wire rope rings 204.
[0038] The second vibration isolation component 3 includes multiple sound-absorbing tiles 301, which are glued to the upper end of the raft body 1, and multiple cavities 302 are opened on the bottom surface of the multiple sound-absorbing tiles 301.
[0039] The third vibration isolation component 5 is fixedly connected to the lower end of the floating raft body 1 inside;
[0040] The bottoms of the base 6, the first vibration isolation component 2, and the third vibration isolation component 5 are all fixedly connected to the base 6.
[0041] The first vibration isolation component 2 is set up. The wire rope ring 204 is made of multiple strands of steel wire. When the equipment vibrates, the wire rope ring 204 deforms and consumes the vibration energy passing through the wire rope ring 204 through friction and slippage between the steel wires, thereby achieving an effective buffering and vibration isolation effect. The sound-absorbing tile 301 is set up. The sound-absorbing tile 301 is made of rubber material and has a cavity 302 structure at the lower end. When the equipment vibrates and generates noise, it can convert sound energy into heat energy and consume it. It can also isolate the top of the floating raft body 1, thereby further playing the role of vibration isolation and noise reduction, and further enhancing the vibration isolation effect of this device. The third vibration isolation component 5 uses a vibration isolator for vibration isolation. This device uses multiple vibration isolation methods to enhance the vibration isolation effect.
[0042] Reference Figure 1 and Figure 2 As shown, the first vibration isolation component 2 includes a first clamping plate 201 and a second clamping plate 202. The first clamping plate 201 and the second clamping plate 202 are detachably connected by a first locking screw 203. A number of wire rope rings 204 are equidistantly arranged between the first clamping plate 201 and the second clamping plate 202. The top of the first clamping plate 201 is fixedly connected to the bottom of the fixing component 4. The bottoms of the number of second clamping plates 202 located below are all fixedly connected to the base 6.
[0043] The wire rope rings 204 are clamped between the first clamping plate 201 and the second clamping plate 202 and locked in place by the first locking screw 203, so that the wire rope rings 204 are evenly spaced and fixed. Then, the top first clamping plate 201 is connected to the raft body 1 through the fixing component 4; the bottom second clamping plate 202 is fixed to the base 6, so that the wire rope rings 204 provide movable support for the raft body 1 on the base 6, thereby achieving the vibration isolation effect.
[0044] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the fixing component 4 includes a mounting base 403, which is fixedly connected to the top of the first clamping plate 201. The upper end of the mounting base 403 is fixedly connected to a mounting block 404, and two limiting blocks 411 are symmetrically slidably connected to the mounting block 404 axially. The bottom surface of the raft body 1 is provided with a mounting groove 401 corresponding to the mounting block 404. Limiting grooves 402 are symmetrically provided at both ends of the inner wall of the mounting groove 401. The mounting block 404 is adapted to the mounting groove 401, and the limiting blocks 411 are adapted to the limiting grooves 402.
[0045] On the mounting base 403, the mounting block 404 can be inserted into the mounting groove 401, and the fixed component 4 and the raft body 1 can be detachably connected by sliding the limiting block 411 in the limiting groove 402.
[0046] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the outer end of the mounting base 403 is provided with a sliding groove 405. A first guide rod 406 is fixedly connected in the sliding groove 405. Two sliders 407 are slidably connected to the outside of the first guide rod 406. The outer ends of the two sliders 407 pass through the sliding groove 405 and are fixedly connected with a pull block 408. A return spring 409 is sleeved on the first guide rod 406 between the two sliders 407. The two ends of the return spring 409 abut against the side wall of the slider 407. A bracket 410 is fixedly connected to the top of the slider 407. The bracket 410 passes through the bottom of the mounting base 403 and the mounting block 404 and is fixedly connected to the limiting block 411. The mounting base 403 and the mounting block 404 are provided with space for the limiting block 411 and the bracket 410 to move.
[0047] By setting the fixing component 4, when the first vibration isolation component 2 is installed together with the raft body 1, the pull block 408 is pulled towards the middle, which drives the sliders 407 on the left and right sides to move towards the middle along the first guide rod 406 and the slide groove 405, and causes the return spring 409 to be compressed, so that the limit block 411 retracts into the mounting block 404. Then the mounting block 404 is inserted into the mounting groove 401, and the pull block 408 is released. Under the action of the return spring 409, the sliders 407, brackets 410 and limit blocks 411 on the left and right sides are driven to return to the sides, so that the limit block 411 is inserted into the limit groove 402, thereby allowing the raft body 1 and the first vibration isolation component 2 to be initially installed and fixed.
[0048] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, a second guide rod 412 is fixedly connected inside the mounting base 403, and two guide blocks 413 are slidably connected to the outside of the second guide rod 412. The two guide blocks 413 are respectively fixedly connected to the two brackets 410 one by one.
[0049] The guiding action of guide 2 and guide block 413 makes the sliding of slider 407 more stable.
[0050] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, mounting plates 414 protrude from both the left and right ends of the mounting block 404. The mounting plates 414 are fastened to the bottom of the raft body 1 by the second locking screw 415.
[0051] By setting a second locking screw 415, the mounting plate 414 and the raft body 1 can be further locked and fixed.
[0052] Reference Figure 1 and Figure 6 As shown, the third vibration isolation component 5 includes several damping shock absorbers 501, which are fixedly connected to the upper end of the base 6. The telescopic ends of the damping shock absorbers 501 are fixedly connected to the bottom of the raft body 1.
[0053] Reference Figure 1 and Figure 6 As shown, a damping spring 502 is externally connected to the damping shock absorber 501. One end of the damping spring 502 is fixedly connected to the bottom of the raft body 1, and the other end is fixedly connected to the base 6.
[0054] By setting the third vibration isolation component 5, the damping spring 502 can absorb the vibration of the equipment. The damping damper, together with the damping spring 502, can play the role of vibration reduction and isolation of the equipment.
[0055] Specific implementation process: When the first vibration isolation component 2 is installed together with the raft body 1, the pull block 408 is pulled towards the middle, which drives the sliders 407 on the left and right sides to move towards the middle along the first guide rod 406 and the slide groove 405, and compresses the return spring 409, so that the limit block 411 retracts into the mounting block 404. Then the mounting block 404 is inserted into the mounting groove 401, and the pull block 408 is released. Under the action of the return spring 409, the sliders 407, brackets 410 and limit blocks 411 on the left and right sides are driven to return to the sides, so that the limit block 411 is inserted into the limit groove 402.
[0056] Then, the mounting plate 414 and the raft body 1 are further locked and fixed using the second locking screw 415;
[0057] The wire rope ring 204 is made of multiple strands of steel wire. When the equipment vibrates during movement, the wire rope ring 204 deforms and consumes the vibration energy passing through the wire rope ring 204 through friction and slippage between the steel wires, thereby achieving an effective buffering and vibration isolation effect.
[0058] Meanwhile, the damping spring 502 can absorb the vibration of the equipment. The damping damper 501, together with the damping spring 502, can play the role of vibration reduction and vibration isolation of the equipment. In addition, the sound-absorbing tile 301 is made of rubber material and has a cavity 302 structure at the lower end. When the equipment vibrates and generates noise, it can convert sound energy into heat energy and dissipate it. It can also isolate the top of the floating raft body 1, thereby further playing the role of vibration isolation and noise reduction, and further enhancing the vibration isolation effect of this device.
[0059] All aspects not detailed in this invention are conventional technical means known to those skilled in the art.
[0060] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.
[0061] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims
1. A horizontally mounted floating raft vibration isolation device, characterized in that, include: Main body of the raft (1); The first vibration isolation component (2) is detachably connected to both sides of the lower end of the raft body (1) via the fixing component (4). The first vibration isolation component (2) is movably provided with several wire rope loops (204), and the first vibration isolation component (2) performs vibration isolation through several wire rope loops (204). The second vibration isolation component (3) includes multiple sound-absorbing tiles (301), which are glued to the upper end of the raft body (1), and multiple cavities (302) are opened on the bottom surface of the multiple sound-absorbing tiles (301). The third vibration isolation component (5) is fixedly connected to the lower end of the raft body (1); The base (6), the bottom of the first vibration isolation component (2) and the third vibration isolation component (5) are all fixedly connected to the base (6).
2. The horizontal floating raft vibration isolation device according to claim 1, characterized in that: The first vibration isolation component (2) includes a first clamping plate (201) and a second clamping plate (202). The first clamping plate (201) and the second clamping plate (202) are detachably connected by a first locking screw (203). A plurality of wire rope loops (204) are equidistantly arranged between the first clamping plate (201) and the second clamping plate (202). The top of the first clamping plate (201) is fixedly connected to the bottom of the fixing component (4). The bottoms of the plurality of second clamping plates (202) located below are all fixedly connected to the base (6).
3. The horizontal floating raft vibration isolation device according to claim 2, characterized in that: The fixing component (4) includes a mounting base (403), which is fixedly connected to the top of the first clamping plate (201) at the top. The upper end of the mounting base (403) is fixedly connected to a mounting block (404). The mounting block (404) is axially symmetrically slidably connected to two limiting blocks (411). The bottom surface of the raft body (1) is provided with a mounting groove (401) corresponding to the mounting block (404). The inner walls of the mounting groove (401) are symmetrically provided with limiting grooves (402) at both ends. The mounting block (404) is adapted to the mounting groove (401), and the limiting block (411) is adapted to the limiting groove (402).
4. The horizontal floating raft vibration isolation device according to claim 3, characterized in that: The mounting base (403) has a groove (405) at its outer end. A first guide rod (406) is fixedly connected in the groove (405). Two sliders (407) are slidably connected to the outside of the first guide rod (406). The outer ends of the two sliders (407) pass through the groove (405) and are fixedly connected to a pull block (408). A return spring (409) is sleeved on the first guide rod (406) between the two sliders (407). The two ends of the return spring (409) abut against the side wall of the slider (407). A bracket (410) is fixedly connected to the top of the slider (407). The bracket (410) passes through the bottom of the mounting base (403) and the mounting block (404) and is fixedly connected to the limiting block (411). The mounting base (403) and the mounting block (404) have a space for the limiting block (411) and the bracket (410) to move.
5. The horizontal floating raft vibration isolation device according to claim 3, characterized in that: The mounting base (403) is also fixedly connected to a second guide rod (412), and two guide blocks (413) are slidably connected to the outside of the second guide rod (412). The two guide blocks (413) are respectively fixedly connected to the two brackets (410) one by one.
6. The horizontal floating raft vibration isolation device according to claim 3, characterized in that: Mounting pieces (414) protrude from the left and right ends of the mounting block (404), and the mounting pieces (414) are fastened to the bottom of the raft body (1) by the second locking screw (415).
7. The horizontal floating raft vibration isolation device according to claim 1, characterized in that: The third vibration isolation component (5) includes several damping shock absorbers (501), which are fixedly connected to the upper end of the base (6). The telescopic ends of the damping shock absorbers (501) are fixedly connected to the bottom of the raft body (1).
8. The horizontal floating raft vibration isolation device according to claim 7, characterized in that: The damping shock absorber (501) is externally connected to a shock-absorbing spring (502), one end of which is fixedly connected to the bottom of the raft body (1), and the other end is fixedly connected to the base (6).