Vibration exciter fixing device for pool vibration monitoring

Abstract

The vibration exciter fixing device for pool vibration monitoring comprises a pool, sliding guide rails are arranged at the tops of the two sides of the outer surface of the pool, sliding trolleys are connected to the sliding guide rails in a sliding mode, a movable supporting frame is arranged at the tops of the two sliding trolleys, and a middle protrusion is arranged in the center of the movable supporting frame. The bottom of the middle protrusion is provided with an inner cavity, the top of the inner cavity is fixedly connected with a second telescopic air cylinder, the telescopic end of the second telescopic air cylinder is provided with a top seat, four corners of the bottom of the top seat are provided with connecting rods, the bottoms of the connecting rods are provided with bases, and the center of the bottom of the top seat is fixedly connected with a first telescopic air cylinder. According to the utility model, the vibration exciter can move in the horizontal longitudinal direction and the vertical plane, so that the excitation position of the vibration exciter can be quickly and flexibly adjusted, the condition that excitation is carried out from the outside of a test model in a pool vibration noise test is met, and the device has certain practicability.

Description

Technical Field

[0001] This utility model relates to the field of water tank vibration monitoring technology, specifically to a vibrator fixing device for water tank vibration monitoring. Background Technology

[0002] Vibration and noise testing of water tanks is crucial for understanding the acoustic and vibration response characteristics of structures and controlling structural vibration and noise. Traditional methods for testing structural vibration and noise in water tanks often involve installing the exciter inside the test model due to environmental limitations. This leads to cumbersome testing procedures and limited excitation location options. If external excitation is used, existing exciter mounting methods are relatively simple, requiring constant adjustments to the model's position to change the excitation measurement point, resulting in a large workload and a high risk of model damage. Furthermore, inaccurate installation height and position of the exciter not only lead to inaccurate test data but also damage the test apparatus and model. Therefore, it is urgently necessary to design a simple, flexible, and efficient exciter mounting device for water tank vibration monitoring. Utility Model Content

[0003] The purpose of this invention is to provide a vibrator fixing device for monitoring water tank vibration, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A vibrator fixing device for monitoring vibration in a water tank includes a water tank. Sliding guide rails are provided on the top of both sides of the outer surface of the water tank. Sliding inner cavities are formed at the top of both ends of the sliding guide rails. Sliding rods are slidably connected to the sliding inner cavities. Sliding trolleys are provided on the top of the sliding rods. The bottom of the sliding trolleys is located at the top of the two sliding trolleys. A movable support frame is provided on the top of the movable support frame. A central protrusion is provided at the center of the movable support frame. An inner cavity is formed at the bottom of the central protrusion. A second telescopic cylinder is fixedly connected to the top of the inner cavity. A top seat is provided at the telescopic end of the second telescopic cylinder. Connecting rods are provided at the four corners of the bottom of the top seat. A base is provided at the bottom of the connecting rods. A first telescopic cylinder is fixedly connected to the center of the bottom of the top seat. The telescopic end of the first telescopic cylinder passes through the base and is located below the base. The telescopic end of the first telescopic cylinder is connected to the top of the vibrator. An excitation rod is provided at the center of the bottom of the vibrator.

[0006] Preferably, the top two sides of the sliding guide rail are provided with a plurality of plug-in holes, the bottom two sides of the sliding trolley are provided with extension plates, the top two ends of the extension plates are provided with fixing holes, and the plug-in holes and the fixing holes are connected by pins.

[0007] Preferably, the top seat is located in the inner cavity, and the two ends of the inner cavity are provided with sliding grooves. The sliding grooves are fitted and slidably connected to the sliders, and the rear end of the sliders is connected to the top seat.

[0008] Preferably, the base is located outside the inner cavity, the bottom sides of the base are connected to the fixed ends of the telescopic rod, and the telescopic ends of the telescopic rod are connected to the top of the vibrator.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] This utility model discloses a vibrator fixing device for water tank vibration monitoring. The movable support frame can move horizontally and longitudinally through a sliding interlocking mechanism. At the same time, the vibrator can be moved vertically through the cooperation of two telescopic cylinders. This allows for quick and flexible adjustment of the vibrator excitation position, meeting the condition of excitation from outside the test model for water tank vibration and noise testing. It has certain practical applications. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the sliding guide rail structure of this utility model;

[0013] Figure 3 This is a schematic diagram of the sliding trolley, mobile support frame, and structure of this utility model;

[0014] Figure 4 This is a schematic diagram of the exciter connection structure of this utility model.

[0015] In the diagram: 1. Water tank; 2. Sliding guide rail; 201. Sliding inner cavity; 202. Insertion and extraction hole; 3. Sliding trolley; 301. Sliding rod; 302. Extension plate; 4. Movable support frame; 5. Middle protrusion; 501. Inner cavity; 502. Slide groove; 6. Vibrator; 7. Vibration rod; 8. Telescopic rod; 9. Base; 10. Connecting rod; 11. Top seat; 12. Slider; 13. First telescopic cylinder; 14. Second telescopic cylinder. Detailed Implementation

[0016] 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.

[0017] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] Please see Figure 1-4 This utility model provides a technical solution:

[0020] A vibrator fixing device for monitoring vibration in a water tank includes a water tank 1. Sliding guide rails 2 are mounted on the top of both sides of the outer surface of the water tank 1. Sliding inner cavities 201 are formed at the top of both ends of the sliding guide rails 2. Sliding rods 301 are slidably connected to the sliding inner cavities 201. Sliding trolleys 3 are mounted on the top of the sliding rods 301, with their bottoms located on the top of the sliding guide rails 2. Movable support frames 4 are mounted on the top of the two sliding trolleys 3. A central protrusion 5 is formed at the center of the movable support frame 4. An inner cavity 501 is formed at the bottom of the central protrusion 501, and a second extension is fixedly connected to the top of the inner cavity 501. The second telescopic cylinder 14 has a top seat 11 at its telescopic end. Connecting rods 10 are provided at the four corners of the bottom of the top seat 11. A base 9 is provided at the bottom of the connecting rods 10. The first telescopic cylinder 13 is fixedly connected to the bottom center of the top seat 11. The telescopic end of the first telescopic cylinder 13 passes through the base 9 and is located below the base. The telescopic end of the first telescopic cylinder 13 is connected to the top of the vibrator 6. An excitation rod 7 is provided at the bottom center of the vibrator 6. It should be noted that the vibrator 6 is a mature existing technology, and its internal structure and working principle will not be described in detail here.

[0021] Furthermore, the top two sides of the sliding guide rail 2 are provided with several insertion holes 202, and the bottom two sides of the sliding trolley 3 are provided with extension plates 302. The top two ends of the extension plates 302 are provided with fixing holes, and the insertion holes 302 and the fixing holes are connected by pins.

[0022] Furthermore, the top seat 11 is located in the inner cavity 501, and the inner cavity 501 has a sliding groove 502 at the center of both ends. The sliding groove 502 is fitted and slidably connected to the slider 12, and the rear end of the slider 12 is connected to the top seat 11.

[0023] Furthermore, the base 9 is located outside the inner cavity 501. The bottom sides of the base 9 are connected to the fixed ends of the telescopic rod 8. The telescopic ends of the telescopic rod 8 are connected to the top of the vibrator 6. Here, the vibrator 6 is fixed by the telescopic rod 8 to prevent shaking, and it does not affect the vertical movement of the vibrator 6 by the second telescopic cylinder 14.

[0024] Working principle: When in use, the operator first slides the sliding trolley 3 and the movable support frame 4 along the sliding inner cavity 201. After sliding to the appropriate position, the pin is inserted into the fixing hole of the extension plate 302. Before insertion, the fixing hole needs to be aligned with one of the insertion holes 202 to facilitate the fixing of the sliding trolley 3.

[0025] Then the height of the vibrator 6 needs to be adjusted. Specifically, the first telescopic cylinder 13 is started by the controller. After the first telescopic cylinder 13 is started, the top seat 11 will move up or down, which will cause the slider 12 to move up or down along the slide groove 502, and finally the vibrator 6 will move up or down.

[0026] Furthermore, when the top seat 11 moves to the top and bottom of the slide groove 502, it will not move further. If it does not move to the appropriate position, it would be difficult to move it in the prior art. However, this utility model can also move the vibrator 6 downward or upward by activating the second telescopic cylinder 14, thereby ensuring that the vibrator 6 is moved to the appropriate height.

[0027] When the vibrator 6 is positioned appropriately, adjust the length of the vibrator rod 7 and connect it to the test model.

[0028] If the excitation point of the test model needs to be changed during the test, repeat the above steps.

[0029] It is worth noting that the entire device is controlled by a controller. Since the controller is a common device and belongs to existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0030] 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 vibrator fixing device for monitoring vibration in a water tank, comprising a water tank (1), characterized in that: The outer surface of the pool (1) is provided with sliding guide rails (2) on both sides at the top. The top of both ends of the sliding guide rails (2) are provided with sliding cavities (201). The sliding cavities (201) are fitted and slidably connected with sliding rods (301). The top of the sliding rods (301) is provided with sliding trolleys (3). The bottom of the sliding trolleys (3) is located at the top of the sliding guide rails (2). The top of the two sliding trolleys (3) is provided with movable support frames (4). The center of the movable support frame (4) is provided with a central protrusion (5). The bottom of the central protrusion (5) is provided with an inner cavity (501). A second telescopic cylinder (14) is fixedly connected to the top of the 01), and a top seat (11) is provided at the telescopic end of the second telescopic cylinder (14). A connecting rod (10) is provided at the four corners of the bottom of the top seat (11), and a base (9) is provided at the bottom of the connecting rod (10). A first telescopic cylinder (13) is fixedly connected to the bottom center of the top seat (11). The telescopic end of the first telescopic cylinder (13) passes through the base (9) and is located below the base. The telescopic end of the first telescopic cylinder (13) is connected to the top of the vibrator (6), and an excitation rod (7) is provided at the bottom center of the vibrator (6).

2. The exciter fixing device for water tank vibration monitoring according to claim 1, characterized in that: The sliding guide rail (2) has several insertion holes (202) on both sides of its top. The sliding trolley (3) has extension plates (302) on both sides of its bottom. The extension plates (302) have through holes at both ends of their top. The insertion holes (202) and the fixing holes are connected by pins.

3. The exciter fixing device for water tank vibration monitoring according to claim 1, characterized in that: The top seat (11) is located in the inner cavity (501). The inner cavity (501) has a sliding groove (502) at the center of both ends. The sliding groove (502) is fitted with a slider (12). The rear end of the slider (12) is connected to the top seat (11).

4. The exciter fixing device for water tank vibration monitoring according to claim 1, characterized in that: The base (9) is located outside the inner cavity (501). The bottom sides of the base (9) are connected to the fixed ends of the telescopic rod (8), and the telescopic ends of the telescopic rod (8) are connected to the top of the vibrator (6).

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