Industrial fan motor noise detection device
By utilizing vibration detection principles and mechanical linkage components, the problem of measurement deviation in noisy environments for industrial fan motor noise detection devices has been solved, enabling intuitive judgment of excessive noise and simplifying the operation process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-07
AI Technical Summary
Existing noise detection devices are easily affected by external noise in noisy industrial production environments, leading to deviations in measurement results and making it impossible to effectively detect abnormal noise from industrial fan motors.
Using the principle of vibration detection, the mechanical linkage component is triggered by the water flow change caused by the vibration of the motor, which simplifies the detection process. Operators can intuitively judge whether the vibration exceeds the standard by observing the pop-up state of the trigger rod.
It avoids the influence of external noise on the test results, simplifies the test process, reduces the requirements for the professional skills of operators, and enables intuitive judgment of excessive noise.
Smart Images
Figure CN224095257U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of noise detection technology, specifically to an industrial fan motor noise detection device. Background Technology
[0002] As a commonly used piece of equipment in industrial production, the noise level of industrial fan motors not only affects the working environment but may also pose a potential threat to the health of operators. Excessive noise levels can interfere with normal communication among workers, reduce work efficiency, and may even lead to occupational health problems such as hearing damage. Therefore, it is necessary to use noise testing devices on the motors during factory testing.
[0003] In existing technologies, traditional noise detection devices mainly rely on acoustic sensors to directly capture sound signals. This detection method is easily affected by external noise in noisy industrial production environments, such as the operation of other equipment and the movement of people, which can lead to deviations in measurement results or even mask abnormal noise from the motor itself.
[0004] In view of the above, this application is hereby submitted. Utility Model Content
[0005] The purpose of this invention is to provide an industrial fan motor noise detection device to solve the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, this utility model provides an industrial fan motor noise detection device, including a three-phase asynchronous motor mounting shell, a detection component mounting shell mounted on the top of the three-phase asynchronous motor mounting shell, a water tank fixedly connected to the inner top wall of the detection component mounting shell, a guide pipe connected to one side outer wall of the water tank, and a detection component installed inside the detection component mounting shell. The detection component includes a fixed shell fixedly connected to the inner bottom wall of the detection component mounting shell, a push rod slidably connected to the top of the fixed shell, a pressure plate fixedly connected to the top of the push rod, a contact post slidably connected to the bottom of the push rod, a guide groove opened on the inner wall of the contact post, a first spring connected to one end of the contact post, a second spring sleeved on the outer wall of the pressure plate away from the push rod, a trigger rod slidably connected to the inner wall of the pressure plate, a third spring sleeved on the side of the trigger rod away from the pressure plate, and a stop block fixedly connected to the outer wall of one side of the trigger rod.
[0007] Furthermore, a storage tank is fixedly connected to one side of the top of the pressure plate, and a door is opened on one side of the top of the housing of the detection component.
[0008] Furthermore, the inside of the water tank is filled with liquid, and the guide pipe is connected to the water tank.
[0009] Furthermore, one end of the first spring is fixedly connected to the abutment post, and the other end of the first spring is fixedly connected to the inner wall of the fixed housing.
[0010] Furthermore, one end of the second spring is fixedly connected to the outer wall of the pressure plate, and the other end of the second spring is fixedly connected to one side of the top of the fixed housing. One end of the third spring is fixedly connected to the pressure plate, and the other end of the third spring is fixedly connected to the stop block.
[0011] Furthermore, the stop block and the abutment post are in contact on the side away from the first spring, and a warning sign is sprayed on the side of the trigger rod near the stop block.
[0012] Furthermore, the end of the push rod near the contact post is a beveled surface, the guide groove has an angle of 30°, and the inner wall of the guide groove is adapted to the beveled surface at one end of the contact post.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. The detection component adopts a non-acoustic detection principle: vibration detection. There is a clear positive correlation between motor noise and vibration: the greater the noise, the more intense the vibration amplitude usually is. The detection focus is shifted from the sound signal to the vibration state of the motor itself, which fundamentally avoids the direct influence of external noise on the detection results.
[0015] 2. The water tank and guide pipe inside the detection component form a simple fluid dynamics system. When the motor vibration causes water flow, the water level in the storage tank rises synchronously with the vibration intensity. As the water volume increases, the weight of the storage tank continues to increase. Finally, the mechanical linkage triggers the pop-out component. No electronic signal processing is required. The operator can intuitively judge whether the vibration exceeds the standard simply by the pop-out state of the trigger rod. This simplifies the detection process and reduces the requirements for the operator's professional skills. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of an industrial fan motor noise detection device;
[0017] Figure 2 A schematic diagram of the overall structure of the housing for a three-phase asynchronous motor mounting shell of an industrial fan motor noise detection device;
[0018] Figure 3 A schematic diagram of the internal structure of the housing for the detection component of an industrial fan motor noise detection device;
[0019] Figure 4 This is a schematic diagram of the connection structure between the storage tank and the detection component in an industrial fan motor noise detection device.
[0020] Figure 5 This is a schematic diagram of the internal structure of the housing in an industrial fan motor noise detection device.
[0021] Figure 6 This is a cross-sectional view of the contact column in an industrial fan motor noise detection device;
[0022] Figure 7 This is a schematic diagram of the contact block in an industrial fan motor noise detection device.
[0023] Figure 8 This is a schematic diagram showing the disassembled components of a detection component in an industrial fan motor noise detection device.
[0024] In the diagram: 1. Three-phase asynchronous motor mounting housing; 2. Detection component mounting housing; 3. Water tank; 4. Flow guide pipe; 5. Storage tank; 6. Pressure plate; 7. Push rod; 8. Abutting post; 9. Guide slide; 10. First spring; 11. Fixed housing; 12. Second spring; 13. Trigger rod; 14. Third spring; 15. Stop block; 16. Box door. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figures 1-8This utility model provides a technical solution: an industrial fan motor noise detection device, including a three-phase asynchronous motor mounting shell 1, a detection component mounting shell 2 mounted on the top of the three-phase asynchronous motor mounting shell 1, a water tank 3 fixedly connected to the inner top wall of the detection component mounting shell 2, a guide pipe 4 connected to one outer wall of the water tank 3, the water tank 3 being filled with liquid, and the guide pipe 4 communicating with the water tank 3 to form a liquid flow channel, and a detection component also being installed inside the detection component mounting shell 2; the detection component includes a fixed shell 11 fixedly connected to the inner bottom wall of the detection component mounting shell 2, the fixed shell 11 not participating in movement, remaining stationary to provide stability for the component, a push rod 7 slidably connected to the top of the fixed shell 11, a pressure plate 6 fixedly connected to the top of the push rod 7, the push rod 7 moving synchronously with the movement of the pressure plate 6, and a contact post 8 slidably connected to the bottom of the push rod 7, the inner wall of the contact post 8 having a guide groove 9, and the push rod 7 near the contact post 8 having a contact groove 9. The end is a beveled surface, and the guide groove 9 has an angle of 30°. The inner wall of the guide groove 9 is adapted to the beveled surface of one end of the abutment post 8. When the push rod 7 moves with the pressure plate 6, it slides horizontally along the guide groove 9. One end of the abutment post 8 is connected to a first spring 10. The first spring 10 is responsible for resetting the abutment post 8 and storing power when the abutment post 8 is subjected to external force, and releasing power when the external force disappears. A second spring 12 is sleeved on the outer wall of the pressure plate 6 away from the push rod 7. The second spring 12 supports the pressure plate 6 and is also used for subsequent reset. A trigger rod 13 is slidably connected to the inner wall of the pressure plate 6. A third spring 14 is sleeved on the side of the trigger rod 13 away from the pressure plate 6. The trigger rod 13 can be used to visually indicate excessive vibration by popping out, while the third spring 14 provides reset force to ensure that the trigger rod 13 can automatically return to its original position when there is no subsequent movement interference. A stop block 15 is fixedly connected to one side of the outer wall of the trigger rod 13. The stop block 15 is responsible for the displacement range of the trigger rod 13 to ensure the trigger threshold is limited.
[0027] See Figure 3 , Figure 4 A storage tank 5 is fixedly connected to one side of the top of the pressure plate 6. The water tank 3 is fixed to the top wall of the housing 2 of the detection component. The guide pipe 4 is connected to the side wall of the water tank 3 and extends to the top of the storage tank 5. When the motor vibrates, the liquid in the water tank 3 flows into the storage tank 5 through the guide pipe 4. The pressure plate 6 begins to sink as the liquid level rises. A door 16 is opened on one side of the top of the housing 2 of the detection component. The door 16 facilitates the maintenance and cleaning of the internal components by the staff.
[0028] See Figure 5 One end of the first spring 10 is fixedly connected to the abutment post 8, and the other end of the first spring 10 is fixedly connected to the inner wall of the fixed housing 11. The first spring 10 is compressed when the abutment post 8 is displaced, storing elastic potential energy. The first spring 10 can provide the restoring force of the abutment post 8. When the abutment post 8 does not interfere, it can drive the abutment post 8 to reset.
[0029] See Figure 7 The stop block 15 and the abutment post 8 are connected in abutment to the side away from the first spring 10. The trigger rod 13 is sprayed with a warning sign on the side near the stop block 15. The warning sign allows the trigger rod 13 to visually indicate that the vibration exceeds the standard when it pops out.
[0030] Working principle: The pressure plate 6 is suspended at the highest position by the second spring 12. The storage tank 5 is empty. The liquid in the water tank 3 flows into the storage tank 5 through the guide pipe 4. The pressure plate 6 sinks as the liquid level rises. The push rod 7 pushes the abutment column 8 to slide horizontally along the guide groove 9 through the inclined surface, compressing the first spring 10. When the abutment column 8 is horizontally displaced to the point where it no longer abuts the stop block 15, it pushes the trigger rod 13 to expose the warning sign.
[0031] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. An industrial fan motor noise detection device, comprising a three-phase asynchronous motor mounting housing (1), characterized in that: The top of the three-phase asynchronous motor mounting housing (1) is equipped with a detection component mounting housing (2), and a water tank (3) is fixedly connected to the inner top wall of the detection component mounting housing (2). A guide pipe (4) is connected to one side outer wall of the water tank (3), and a detection component is also installed inside the detection component mounting housing (2). The detection assembly includes a fixed housing (11) fixedly connected to the inner bottom wall of the detection assembly mounting housing (2). A push rod (7) is slidably connected to the top of the fixed housing (11). A pressure plate (6) is fixedly connected to the top of the push rod (7). An abutment post (8) is slidably connected to the bottom of the push rod (7). A guide groove (9) is provided on the inner wall of the abutment post (8). A first spring (10) is connected to one end of the abutment post (8). A second spring (12) is sleeved on the outer wall of the pressure plate (6) away from the push rod (7). A trigger rod (13) is slidably connected to the inner wall of the pressure plate (6). A third spring (14) is sleeved on the side of the trigger rod (13) away from the pressure plate (6). A stop block (15) is fixedly connected to the outer wall of the trigger rod (13).
2. The industrial fan motor noise detection device as described in claim 1, characterized in that: A storage tank (5) is fixedly connected to one side of the top of the pressure plate (6), and a door (16) is opened on one side of the top of the detection component mounting shell (2).
3. The industrial fan motor noise detection device as described in claim 2, characterized in that: The water tank (3) is filled with liquid, and the guide pipe (4) is connected to the water tank (3).
4. The industrial fan motor noise detection device as described in claim 3, characterized in that: The push rod (7) has a beveled end near the abutting post (8), the guide groove (9) has an angle of 30°, and the inner wall of the guide groove (9) is adapted to the beveled end of the abutting post (8).
5. The industrial fan motor noise detection device as described in claim 4, characterized in that: One end of the first spring (10) is fixedly connected to the abutting post (8), and the other end of the first spring (10) is fixedly connected to the inner wall of the fixed housing (11).
6. The industrial fan motor noise detection device as described in claim 5, characterized in that: One end of the second spring (12) is fixedly connected to the outer wall of the pressure plate (6), and the other end of the second spring (12) is fixedly connected to one side of the top of the fixed housing (11).
7. The industrial fan motor noise detection device as described in claim 6, characterized in that: One end of the third spring (14) is fixedly connected to the pressure plate (6), and the other end of the third spring (14) is fixedly connected to the stop block (15).
8. The industrial fan motor noise detection device as described in claim 7, characterized in that: The stop (15) and the abutment post (8) are connected in contact on the side away from the first spring (10), and the trigger rod (13) is sprayed with a warning sign on the side near the stop (15).