CN219733691U - High-efficiency axial flow fan - Google Patents

Abstract

The utility model relates to the technical field of axial flow fans, and discloses a high-efficiency axial flow fan, which includes a first sleeve, and a sleeve seat is provided inside the first sleeve; in the utility model, a sleeve is installed inside the first sleeve seat, and then installed in the sleeve through the stepper motor. When the axial flow fan is working, the sleeve can protect the stepper motor, prevent the stepper motor from direct contact with the transported gas, and prevent the stepper motor from being belted. Airflow corrosion caused by corrosive gases ensures the service life of the stepper motor. Through the design of the second sleeve, it cooperates with the mounting base on the second sleeve, and a detent slot is provided on the mounting base. When the fan blade needs to be replaced, At this time, you only need to unscrew the fixing bolt from the pressure plate to separate it from the output end of the stepper motor, and take out the pressure plate. In this way, the clamping block can be taken out from the limit insertion rod in the clamping slot, which is convenient for Replacement eliminates the need to use multiple bolt limits, improving replacement efficiency.

Description

High efficiency axial flow fan

Technical field

The utility model relates to the technical field of axial flow fans, specifically a high-efficiency axial flow fan.

Background technique

In industrial production and building ventilation projects, fans need to be used. The existing fan forms are roughly divided into two categories, one is axial flow fan and the other is centrifugal fan. Axial flow fan is usually used in more In harsh environments, such as dusty, gas corrosive and other occasions with higher flow requirements and lower pressure requirements, the advantage is large gas delivery volume, low noise and high efficiency.

For example, the application number is CN218717579U, a high-efficiency axial flow fan, including a fan, the bottom of the fan is fixedly connected to a base, the bottoms on both sides of the base are provided with slots, and both ends of the slot are fixed A rotating ring is connected, and inclined grooves are provided on both sides of the base. The base is connected to a support plate through the rotating ring. The advantage of this utility model is that by setting the rotating rings on both sides of the bottom of the base, the support plate can rotate relative to the base. When the fan is not in use, the support plate can be stored in the inclined groove to avoid occupying storage space. When the fan is needed, When supporting the board, rotate the support board to a horizontal state to increase the contact area between the base and the ground and improve the stability of the fan during operation. By setting a locking block on the rotating rod that matches the locking slot, the support board can be After turning to the horizontal state, push the rotating rod inward to enter the notch slot, so that the locking block and the locking slot are docked.

To sum up, although this device can improve the stability of the fan during operation, there are still certain problems when using it. For example, when the axial flow fan is used for ventilation and smoke exhaust, the surface of the motor lacks protection and is directly exposed to the air flow. , corrosive gases can easily cause harm to the motor of the axial flow fan, reducing the service life of the motor. At the same time, after long-term use of the axial flow fan, the blades will wear, and the blades of the axial flow fan are installed with bolts. On the impeller of the axial flow fan, the impeller is fixed on the motor shaft of the axial flow fan through bolts. When disassembling, it is necessary to unscrew the fixing bolts of the impeller and the fixing bolts of the blades, which is troublesome to disassemble and inconvenient to replace.

Utility model content

The purpose of this utility model is to provide a high-efficiency axial flow fan, which has the advantages of protection and easy replacement. It solves the problem that when the axial flow fan is used for ventilation and smoke exhaust, the motor surface lacks protection and is directly exposed to the air flow, and corrosive gases are easy to attack the shaft. The motor of the flow fan causes harm and reduces the service life of the motor. At the same time, the blades of the axial flow fan will wear out after long-term use. The blades of the axial flow fan are installed on the impeller of the axial flow fan through bolts. The impeller is fixed on the motor shaft of the axial flow fan through bolts. When disassembling, it is necessary to unscrew the fixing bolts of the impeller and the fixing bolts of the blades, which is troublesome to disassemble and inconvenient to replace.

In order to achieve the above purpose, the present utility model provides the following technical solution: a high-efficiency axial flow fan includes a first sleeve, a sleeve is provided inside the first sleeve, and a stepper motor is provided inside the sleeve. The surface of the stepper motor is symmetrically bolted with a connecting seat that is slidingly connected to the sleeve. The surface of the sleeve is symmetrically provided with a fixed seat. A first limiting bolt is symmetrically threaded between the fixed seat and the sleeve. And one end of the first limiting bolt penetrates into the inside of the socket and is threadedly connected to the connecting seat. The output end of the stepper motor penetrates into the inside of the socket and is sleeved with a second sleeve. The second sleeve There is a mounting base fixed on the surface of the mounting base. A clamping slot is provided on the front of the mounting base. A clamping block is provided inside the clamping slot. The side of the clamping block away from the clamping slot is integrally processed with a fan. Leaf, the front side of the second sleeve is provided with a pressure plate, the front side of the pressure plate is threadedly connected to a fixing bolt, one end of the fixing bolt penetrates into the inside of the second sleeve and is threadedly connected to the output end of the stepper motor.

The utility model is further configured that the surface of the first sleeve is symmetrically threaded with a second limit bolt, and the inside of the first sleeve is symmetrically provided with a sliding groove that is slidably connected to the fixed seat, and the second limit bolt is symmetrically connected to the surface of the first sleeve. One end of the bolt penetrates into the interior of the sliding groove and is threadedly connected to the fixed base.

Adopt the above technical solution: limit the position of the fixed seat.

The utility model is further configured that a limited insertion rod is bolted to the inside of the clamping slot, a pressing block is bolted to the side of the pressing plate close to the clamping slot, and the surface of the clamping block and the pressing block are close to the clamping slot. There are slots on one side for use with the limiting insert rods.

Adopt the above technical solution: limit the blocking block.

The utility model is further configured that a support frame is bolted to the bottom of the first sleeve.

Adopt the above technical solution: limit the first sleeve.

The utility model is further configured such that a dust-proof grille is installed inside the first sleeve, a heat dissipation fin is installed on the surface of the sleeve, and one end of the heat dissipation fin penetrates into the interior of the sleeve and communicates with the stepper motor. With the use of.

The above technical solution is adopted to prevent large particles of dust from entering the inside of the first sleeve.

The utility model is further configured that a flange plate is fixedly connected to the surface of the first sleeve.

Adopt the above technical solution: it is convenient to connect the external fan duct.

Compared with the existing technology, the beneficial effects of this utility model are as follows:

In the utility model, a sleeve is installed inside the first sleeve, and then the stepper motor is installed in the sleeve. When the axial flow fan is working, the sleeve can protect the stepper motor and prevent the stepper motor from directly Direct contact with the transported gas to prevent the stepper motor from being corroded by airflow containing corrosive gases and ensure the service life of the stepper motor;

Through the design of the second sleeve, the utility model cooperates with the mounting seat on the second sleeve and has a locking slot on the mounting seat. When the fan blade needs to be replaced, the fixing bolt only needs to be unscrewed from the pressure plate. Separate it from the output end of the stepper motor, and take out the pressure plate. In this way, the blocking block can be taken out from the limiting rod in the blocking slot, which is convenient for replacement. There is no need to use multiple bolts to limit the position, which improves the efficiency of replacement. efficiency.

Description of the drawings

Figure 1 is a schematic structural diagram of the utility model;

Figure 2 is a front view of the partial structure of the utility model;

Figure 3 is a back view of the partial structure of the utility model;

Figure 4 is a schematic diagram of the partial structure of the utility model used together;

Figure 5 is a schematic diagram of the partial structure of the utility model used together.

In the picture: 1. First sleeve; 2. Sleeve; 3. Stepper motor; 4. Connecting seat; 5. Fixing seat; 6. First limit bolt; 7. Second sleeve; 8. Mounting seat ; 9. Catch slot; 10. Catch block; 11. Fan blade; 12. Pressure plate; 13. Fixing bolt; 14. Second limit bolt; 15. Limit insertion rod; 16. Pressure block; 17. Support Frame; 18. Dust-proof grille; 19. Cooling fins; 20. Flange.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all implementations. example. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

Example 1:

Please refer to Figure 1, Figure 2 and Figure 3. The high-efficiency axial flow fan includes a first sleeve 1. The surface of the first sleeve 1 is symmetrically threaded with a second limiting bolt 14, and the first sleeve 1 is There is a sliding groove symmetrically connected with the fixed seat 5 inside. One end of the second limiting bolt 14 penetrates into the interior of the sliding groove and is threadedly connected with the fixed seat 5 to limit the fixed seat 5. The first sleeve 1 A sleeve 2 is provided inside, and a stepper motor 3 is provided inside the sleeve 2. The surface of the stepper motor 3 is symmetrically bolted with a connecting seat 4 that is slidingly connected to the sleeve 2. The sleeve 2 is symmetrically provided with a fixed seat on its surface. 5. A first limiting bolt 6 is symmetrically threaded between the fixed base 5 and the sleeve 2, and one end of the first limiting bolt 6 penetrates into the interior of the sleeve 2 and is threadedly connected to the connecting base 4. The first sleeve A support frame 17 is bolted to the bottom of 1 to limit the position of the first sleeve 1. A dust-proof grille 18 is installed inside the first sleeve 1. A heat dissipation fin 19 is installed on the surface of the sleeve 2. The heat dissipation fin 19 is One end penetrates into the inside of the sleeve 2 and is used in conjunction with the stepper motor 3 to prevent large particles of dust from entering the inside of the first sleeve 1. A flange 20 is fixedly connected to the surface of the first sleeve 1 to facilitate connection with an external fan. The pipeline is installed with a sleeve 2 inside the first sleeve 1, and then is installed in the sleeve 2 through the stepper motor 3. When the axial flow fan is working, the sleeve 2 can protect the stepper motor 3. Prevent the stepper motor 3 from being in direct contact with the transported gas, prevent the stepper motor 3 from being corroded by the airflow containing corrosive gas, and ensure the service life of the stepper motor 3 .

Brief description of the use process: When the axial flow fan is working, the transported airflow passes through the first sleeve 1, because the first sleeve 1 is installed with a sleeve 2 inside, and then is installed in the sleeve 2 through the stepper motor 3. , the sleeve 2 can protect the stepper motor 3, prevent the stepper motor 3 from direct contact with the transported gas, prevent the stepper motor 3 from being corroded by the air flow containing corrosive gas, and ensure the service life of the stepper motor 3.

Example 2:

Please refer to Figure 1, Figure 4 and Figure 5 for a high-efficiency axial flow fan. The output end of the stepper motor 3 penetrates into the interior of the sleeve 2 and is covered with a second sleeve 7. The surface of the second sleeve 7 is fixed. The mounting base 8 is connected to the socket, and a clamping slot 9 is provided on the front of the mounting base 8. A limited insertion rod 15 is bolted to the inside of the clamping slot 9, and a pressure block 16 is bolted to the side of the pressure plate 12 close to the clamping slot 9. And the surface of the blocking block 10 and the side of the pressing block 16 close to the blocking slot 9 are provided with slots used in conjunction with the limiting insertion rod 15 to limit the blocking block 10, and the internal setting of the blocking slot 9 is There is a blocking block 10. The side of the blocking block 10 away from the blocking groove 9 is integrally processed with a fan blade 11. The front side of the second sleeve 7 is provided with a pressure plate 12. The front side of the pressure plate 12 is threadedly connected with a fixing bolt 13. The fixing bolt One end of 13 penetrates into the interior of the second sleeve 7 and is threadedly connected to the output end of the stepper motor 3. Through the design of the second sleeve 7, it cooperates with the mounting base 8 on the second sleeve 7, and passes through the mounting base 8 There is a locking slot 9 on it. When you need to replace the fan blade 11, you only need to unscrew the fixing bolt 13 from the pressure plate 12 to separate it from the output end of the stepper motor 3, and take out the pressure plate 12. In this way, the locking slot 9 is provided. The block 10 can be taken out from the limiting insertion rod 15 in the latching slot 9 to facilitate replacement without using multiple bolts for limiting, thereby improving the efficiency of replacement.

Brief description of the use process: After the design of the second sleeve 7, it cooperates with the mounting seat 8 on the second sleeve 7, and a locking slot 9 is provided on the mounting seat 8. When the fan blade 11 needs to be replaced, only the fan blade 11 needs to be replaced. Unscrew the fixing bolt 13 from the pressure plate 12 to separate it from the output end of the stepper motor 3. Take out the pressure plate 12, so that the blocking block 10 can be taken out from the limiting insertion rod 15 in the blocking slot 9. , easy to replace, no need to use multiple bolt limits, improving the efficiency of replacement.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention. , substitutions and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. High-efficient axial fan, including first sleeve (1), its characterized in that: the inside of first sleeve (1) is provided with cover seat (2), the inside of cover seat (2) is provided with step motor (3), the surface symmetry bolt of step motor (3) has connecting seat (4) with cover seat (2) sliding connection, the surface symmetry of cover seat (2) is provided with fixing base (5), symmetrical threaded connection has first spacing bolt (6) between fixing base (5) and cover seat (2), and the one end of first spacing bolt (6) runs through to the inside of cover seat (2) and with connecting seat (4) threaded connection, the output of step motor (3) runs through to the inside of cover seat (2) and overlaps and be equipped with second sleeve (7), the fixed cover of surface of second sleeve (7) has installed seat (8), clamping groove (9) have been seted up in the front of installing seat (8), the inside of clamping groove (9) is provided with clamping block (10), one side that clamping block (10) kept away from clamping groove (9) is integrative has 11), the front clamp plate (12) of processing clamp plate (12) has, clamp plate (12) is fixed in front, one end of the fixing bolt (13) penetrates into the second sleeve (7) and is in threaded connection with the output end of the stepping motor (3).

2. The efficient axial flow fan as defined in claim 1, wherein: the surface symmetry threaded connection of first sleeve (1) has second spacing bolt (14), and the inside symmetry of first sleeve (1) offered with fixing base (5) sliding connection's sliding tray, the one end of second spacing bolt (14) run through to the inside of sliding tray and with fixing base (5) threaded connection.

3. The efficient axial flow fan as defined in claim 1, wherein: the inside bolt of screens groove (9) has spacing inserted bar (15), the bolt of one side that clamp plate (12) are close to screens groove (9) has briquetting (16), and the slot that uses with spacing inserted bar (15) cooperation has all been seted up to the surface of screens piece (10) and the one side that briquetting (16) are close to screens groove (9).

4. The efficient axial flow fan as defined in claim 1, wherein: the bottom of the first sleeve (1) is bolted with a supporting frame (17).

5. The efficient axial flow fan as defined in claim 1, wherein: the dustproof grating (18) is arranged in the first sleeve (1), the radiating fins (19) are arranged on the surface of the sleeve seat (2), and one ends of the radiating fins (19) penetrate through the sleeve seat (2) and are matched with the stepping motor (3).

6. The efficient axial flow fan as defined in claim 1, wherein: the surface of the first sleeve (1) is fixedly sleeved with a flange plate (20).