Centrifugal fan with protection function

Abstract

The utility model relates to the technical field of centrifugal fans, in particular to a centrifugal fan with a protection function, which comprises a bottom plate, a first damping component is fixedly mounted on the bottom plate, the first damping component comprises a first cylindrical sleeve fixedly mounted on the bottom plate, and a first rubber partition plate is slidably mounted in the first cylindrical sleeve. A first annular baffle is fixedly installed at the top end of the first cylindrical sleeve, a first fixing hole is formed in the middle of the first rubber partition plate, a first supporting column is fixedly installed on the first fixing hole, a workbench is fixedly installed on the first supporting column, and a fan body is installed on the workbench. According to the utility model, stable operation of the fan is guaranteed in the aspects of shock absorption, filtration, monitoring protection and the like, the service life of the fan is prolonged, the maintenance cost is reduced, meanwhile, the adverse effects on the surrounding environment and corollary equipment are reduced, and the fan is suitable for various application scenes with higher requirements on the operation stability and reliability of the fan.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal fan technology, and in particular to a centrifugal fan with protective function. Background Technology

[0002] Centrifugal fans, as a device that converts the mechanical energy of a prime mover into gas energy, are widely used in various fields. Whether it is ventilation and material conveying in industrial production, or air conditioning systems and kitchen exhaust in civil buildings, centrifugal fans play a vital role. In actual operation, centrifugal fans will inevitably be subjected to various impacts and vibrations.

[0003] Existing centrifugal fans with protective functions reduce vibration through traditional damping measures such as spring dampers. Although spring dampers can provide a large amount of elastic deformation, their damping effect is not ideal under high-frequency vibration. Moreover, the installation and adjustment of spring dampers are relatively complex and require professional operation. Utility Model Content

[0004] The purpose of this invention is to provide a centrifugal fan with protective functions, which improves the reliability and safety of the equipment through the cooperation between these structures.

[0005] This application provides a centrifugal fan with protective function, including a base plate. A first shock-absorbing component is fixedly installed on the base plate. The first shock-absorbing component includes a first cylindrical sleeve fixedly installed on the base plate. A first rubber partition is slidably installed inside the first cylindrical sleeve. A first annular baffle is fixedly installed at the top of the first cylindrical sleeve. A first fixing hole is opened in the middle of the first rubber partition. A first support column is fixedly installed in the first fixing hole. A worktable is fixedly installed on the first support column. The fan body is installed on the worktable.

[0006] By adopting the above technical solution, when working is required, gas is injected into the hollow part of the first cylindrical sleeve in the first shock-absorbing assembly. The first rubber partition moves upward and reaches the bottom of the first annular baffle, at which point the inflation can be stopped. The support column in the middle of the first rubber partition also moves upward, and the first shock-absorbing assembly plays a role in supporting the workbench.

[0007] Optionally, a support frame is fixedly installed at the bottom of the first cylindrical sleeve.

[0008] By adopting the above technical solution, the support frame can effectively prevent deformation of the bottom of the first cylindrical sleeve and ensure the stable operation of the shock absorption function.

[0009] Optionally, four second shock-absorbing components are uniformly fixedly installed on the base plate. Each second shock-absorbing component includes a second cylindrical sleeve fixedly installed on the base plate. A second rubber partition is slidably installed inside the second cylindrical sleeve. A second annular baffle is fixedly installed at the top of the second cylindrical sleeve. A second fixing hole is opened in the middle of the second rubber partition. A second support column is fixedly installed on the second fixing hole. The top of the second support column is in contact with the bottom of the workbench.

[0010] By adopting the above technical solution, the rigidity and shock absorption performance of the platform can be changed by adjusting the air pressure inside the second cylindrical sleeve to adapt to equipment with different weights and vibration characteristics, and to ensure that the platform remains balanced under different loads.

[0011] Optionally, two fixing blocks are fixedly installed on the workbench, and the bottom ends of the fan body are fixedly installed between the two fixing blocks.

[0012] By adopting the above technical solution, the two fixing blocks clearly define the positions of the two ends of the bottom of the fan body, providing precise installation points for the fan. The fan will vibrate during operation, especially the centrifugal fan. Factors such as the centrifugal force generated by the high-speed rotation of its impeller can easily cause the fan to shift. The fixing blocks can act like "positioners" to firmly fix the two ends of the bottom of the fan.

[0013] Optionally, a power assembly is fixedly installed on the back of the fan body. The power assembly includes a drive motor installed on the back of the fan body. The output end of the drive motor is fixedly installed through the fan body housing and a transmission shaft is fixedly installed on the transmission shaft. An impeller is fixedly installed on the transmission shaft.

[0014] By adopting the above technical solution, the output end of the drive motor is directly connected to the transmission shaft, which is then firmly fixed to the impeller. This direct connection method ensures that power can be efficiently transmitted from the motor to the impeller. When the motor rotates, the torque can be accurately transmitted to the impeller through the rigid connection of the transmission shaft, allowing the impeller to rotate at a stable speed and torque.

[0015] Optionally, a vibration sensor is fixedly installed in the inner cavity of the fan body, and the detection end of the vibration sensor is in contact with the output end of the drive motor.

[0016] By adopting the above technical solution, and by feeding vibration information back to the control system in real time, operators can monitor the motor's operating status at any time in the control room or through a remote monitoring system.

[0017] Optionally, a filter plate is threadedly installed at the air inlet end of the fan body.

[0018] By adopting the above technical solution, the filter plate can filter the air entering the fan, remove impurities and pollutants, thereby improving the quality of the air entering the fan.

[0019] Optionally, a rubber pad is fixedly installed on the workbench.

[0020] By adopting the above technical solutions, the impact of vibration generated during the operation of the fan on the stability of the workbench and the entire device can be reduced, and the noise caused by vibration can be reduced, making the fan run more smoothly.

[0021] Optionally, dampers are fixedly installed between the base plate and both sides of the worktable.

[0022] By adopting the above technical solution, when the fan starts up, stops, or encounters sudden external interference, the damper can help the workbench and the fan quickly return to a stable state, reduce the damage of vibration to the fan and its connecting parts, and extend the service life of the equipment.

[0023] Optionally, a temperature sensor is fixedly mounted on the drive motor.

[0024] By adopting the above technical solution, the motor temperature can be monitored in real time to prevent overheating failure.

[0025] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:

[0026] The technical solution of this application, through the synergistic effect of various structures and components in a centrifuge with protective functions, provides a guarantee for the stable operation of the fan in terms of shock absorption, filtration, monitoring and protection, etc., extends the service life of the fan, reduces maintenance costs, and also reduces the adverse impact on the surrounding environment and supporting equipment. It is suitable for a variety of application scenarios with high requirements for the stability and reliability of fan operation. Attached Figure Description

[0027] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0028] Figure 1 This is a schematic diagram of the overall structure of a centrifugal fan with protective function according to the present invention;

[0029] Figure 2 This is a right-side structural schematic diagram of a centrifugal fan with protective function according to this utility model;

[0030] Figure 3 This is a cross-sectional structural diagram of a centrifugal fan with protective function according to the present invention;

[0031] Figure 4This is a schematic diagram of the structure of some parts in a centrifugal fan with protective function according to this utility model.

[0032] In the diagram: 1. Base plate; 2. First shock absorber assembly; 201. First cylindrical sleeve; 202. First rubber partition; 203. First annular baffle; 204. Support frame; 205. First fixing hole; 3. First support column; 4. Workbench; 5. Fixing block; 6. Fan body; 7. Filter plate; 8. Power assembly; 801. Drive motor; 802. Transmission shaft; 803. Impeller; 9. Vibration sensor; 10. Temperature sensor; 11. Damper; 12. Rubber pad; 13. Second shock absorber assembly; 1301. Second cylindrical sleeve; 1302. Second rubber partition; 1303. Second annular baffle; 1304. Second fixing hole; 14. Second support column. Detailed Implementation

[0033] Please see Figure 1-4 This utility model provides a technical solution: a centrifugal fan with protective function, including a base plate 1, a first shock-absorbing component 2 fixedly installed on the base plate 1, the first shock-absorbing component 2 including a first cylindrical sleeve 201 fixedly installed on the base plate 1, a first rubber partition 202 slidably installed inside the first cylindrical sleeve 201, a first annular baffle 203 fixedly installed at the top of the first cylindrical sleeve 201, a first fixing hole 205 opened in the middle of the first rubber partition 202, a first support column 3 fixedly installed on the first fixing hole 205, a workbench 4 fixedly installed on the first support column 3, and a fan body 6 installed on the workbench 4.

[0034] In the above technical solution, when working, gas is injected into the hollow part of the first cylindrical sleeve 201 in the first shock-absorbing component 2, the first rubber partition 202 moves upward and reaches the bottom of the first annular baffle 203, and the inflation can be closed. The support column in the middle of the first rubber partition 202 also moves upward, and the first shock-absorbing component 2 plays a role in supporting the workbench 4.

[0035] In the technical solution of this utility model, such as Figure 3 As shown, a support frame 204 is fixedly installed at the bottom of the first cylindrical sleeve 201. The support frame 204 can effectively prevent the bottom of the first cylindrical sleeve 201 from deforming and ensure the stable operation of the shock absorption function.

[0036] In the technical solution of this utility model, such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, four second shock-absorbing components 13 are uniformly fixedly installed on the base plate 1. Each second shock-absorbing component 13 includes a second cylindrical sleeve 1301 fixedly installed on the base plate 1. A second rubber partition 1302 is slidably installed inside the second cylindrical sleeve 1301. A second annular baffle 1303 is fixedly installed at the top of the second cylindrical sleeve 1301. A second fixing hole 1304 is opened in the middle of the second rubber partition 1302. A second support column 14 is fixedly installed on the second fixing hole 1304. The top of the second support column 14 contacts the bottom of the workbench 4. By adjusting the air pressure inside the second cylindrical sleeve 1301, the rigidity and shock absorption performance of the platform can be changed to adapt to equipment with different weights and vibration characteristics, ensuring that the platform remains balanced under different loads.

[0037] In the technical solution of this utility model, such as Figure 1 , Figure 2 and Figure 3 As shown, two fixing blocks 5 are fixedly installed on the workbench 4. The bottom ends of the fan body 6 are fixedly installed between the two fixing blocks 5. The two fixing blocks 5 clearly define the position of the bottom ends of the fan body 6, providing a precise installation point for the fan. The fan will vibrate during operation, especially the centrifugal fan. Factors such as the centrifugal force generated by the high-speed rotation of its impeller 803 can easily cause the fan to shift. The fixing blocks 5 can act as "positioners" to firmly fix the bottom ends of the fan.

[0038] In the technical solution of this utility model, such as Figure 2 and Figure 3 As shown, a power assembly 8 is fixedly installed on the back of the fan body 6. The power assembly 8 includes a drive motor 801 installed on the back of the fan body 6. The output end of the drive motor 801 is fixedly installed through the housing of the fan body 6 with a transmission shaft 802. An impeller 803 is fixedly installed on the transmission shaft 802. The output end of the drive motor 801 is directly connected to the transmission shaft 802, and the transmission shaft 802 is firmly fixed to the impeller 803. This direct connection method ensures that the power can be efficiently transmitted from the motor to the impeller 803. When the motor rotates, the torque can be accurately transmitted to the impeller 803 through the rigid connection of the transmission shaft 802, so that the impeller 803 rotates at a stable speed and torque.

[0039] In the technical solution of this utility model, such as Figure 3 As shown, a vibration sensor 9 is fixedly installed in the inner cavity of the fan body 6. The detection end of the vibration sensor 9 is in contact with the output end of the drive motor 801. By feeding the vibration information back to the control system in real time, the operator can understand the working status of the motor at any time in the control room or through the remote monitoring system.

[0040] In the technical solution of this utility model, such as Figure 1As shown, a filter plate 7 is threadedly installed at the air inlet end of the fan body 6. The filter plate 7 can filter the air entering the fan, remove impurities and pollutants, thereby improving the quality of the air entering the fan.

[0041] In the technical solution of this utility model, such as Figure 1 , Figure 2 and Figure 3 As shown, a rubber pad 12 is fixedly installed on the workbench 4, which can reduce the impact of the vibration generated during the operation of the fan on the stability of the workbench 4 and the entire device, and reduce the noise caused by the vibration, making the fan run more smoothly.

[0042] In the technical solution of this utility model, such as Figure 1 , Figure 2 and Figure 3 As shown, dampers 11 are fixedly installed between the base plate 1 and both sides of the workbench 4. When the fan starts, stops, or encounters sudden external interference, the dampers 11 can help the workbench 4 and the fan quickly return to a stable state, reduce the damage of vibration to the fan and its connecting parts, and extend the service life of the equipment.

[0043] In the technical solution of this utility model, such as Figure 2 As shown, a temperature sensor 10 is fixedly installed on the drive motor 801 to monitor the motor temperature in real time and prevent overheating failure.

[0044] When operation is required, gas is injected into the hollow part of the first cylindrical sleeve 201 in the first shock-absorbing assembly 2. The first rubber baffle 202 moves upward and reaches the bottom of the first annular baffle 203, at which point the inflation is stopped. The support column in the middle of the first rubber baffle 202 also moves upward, and the first shock-absorbing assembly 2 provides load-bearing support for the workbench 4. Then, the other four second assemblies are inflated according to the weight of the objects on the workbench 4 to keep the workbench 4 level. Then, it is confirmed that the filter screen in the fan body 6 is installed. The temperature sensor 10 and vibration sensor 9 are turned on, and then the power assembly 8 is turned on. When the blower body 6 starts working, the temperature sensor 10 will alarm when the temperature of the drive motor 801 casing is too high, alerting the staff. When the output of the drive motor 801 experiences uneven or strong vibration, the vibration sensor 9 will decelerate the output of the drive motor 801 and trigger an alarm, allowing the staff to promptly identify and repair the problem. During operation, the rubber pad 12 on the workbench 4 will buffer the vibration generated by the blower body 6. The first damping component 2 and the second damping component 13 effectively isolate and buffer the vibration generated by the equipment, providing a stable operating environment for the equipment.

Claims

1. A centrifugal fan with protective function, comprising a base plate (1), characterized in that: A first shock-absorbing component (2) is fixedly installed on the base plate (1). The first shock-absorbing component (2) includes a first cylindrical sleeve (201) fixedly installed on the base plate (1). A first rubber partition (202) is slidably installed inside the first cylindrical sleeve (201). A first annular baffle (203) is fixedly installed at the top of the first cylindrical sleeve (201). A first fixing hole (205) is opened in the middle of the first rubber partition (202). A first support column (3) is fixedly installed on the first fixing hole (205). A workbench (4) is fixedly installed on the first support column (3). A fan body (6) is installed on the workbench (4).

2. A centrifugal fan with protective function according to claim 1, characterized in that, A support frame (204) is fixedly installed at the bottom of the first cylindrical sleeve (201).

3. A centrifugal fan with protective function according to claim 2, characterized in that, Four second shock-absorbing components (13) are uniformly fixedly installed on the base plate (1). The second shock-absorbing component (13) includes a second cylindrical sleeve (1301) fixedly installed on the base plate (1). A second rubber partition (1302) is slidably installed inside the second cylindrical sleeve (1301). A second annular baffle (1303) is fixedly installed at the top of the second cylindrical sleeve (1301). A second fixing hole (1304) is opened in the middle of the second rubber partition (1302). A second support column (14) is fixedly installed on the second fixing hole (1304). The top of the second support column (14) is in contact with the bottom of the workbench (4).

4. A centrifugal fan with protective function according to claim 3, characterized in that, Two fixing blocks (5) are fixedly installed on the workbench (4), and the bottom ends of the fan body (6) are fixedly installed between the two fixing blocks (5).

5. A centrifugal fan with protective function according to claim 3, characterized in that, A power assembly (8) is fixedly installed on the back of the fan body (6). The power assembly (8) includes a drive motor (801) installed on the back of the fan body (6). The output end of the drive motor (801) is fixedly installed through the housing of the fan body (6) with a transmission shaft (802). An impeller (803) is fixedly installed on the transmission shaft (802).

6. A centrifugal fan with protective function according to claim 5, characterized in that, A vibration sensor (9) is fixedly installed in the inner cavity of the fan body (6), and the detection end of the vibration sensor (9) is in contact with the output end of the drive motor (801).

7. A centrifugal fan with protective function according to claim 4, characterized in that, The air inlet end of the fan body (6) is threaded with a filter plate (7).

8. A centrifugal fan with protective function according to claim 1, characterized in that, A rubber pad (12) is fixedly installed on the workbench (4).

9. A centrifugal fan with protective function according to claim 1, characterized in that, Dampers (11) are fixedly installed between the base plate (1) and the two sides of the workbench (4).

10. A centrifugal fan with protective function according to claim 5, characterized in that, A temperature sensor (10) is fixedly installed on the drive motor (801).

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