Fan abrasion reducing device

Abstract

The utility model discloses a fan wear reducing device, which belongs to the fan field, and comprises a fan cylinder and a base plate, the fan cylinder is cylindrical, the two ends of the fan cylinder are open, a cross support frame is arranged in the fan cylinder, a motor is fixed in the center of the cross support frame, the output end of the motor is provided with a rotating shaft, and the rotating shaft is fixed on the base plate. Blades are evenly fixed to the surface of the rotating shaft, a coupler B is arranged at the end, away from the motor, of the rotating shaft, check blocks are evenly arranged in one side of the fan barrel, a dustproof net plate is fixed in one end of the fan barrel and makes contact with the check blocks, and the dustproof net plate is arranged on the sides, away from the blades, of the check blocks. A connecting shaft is installed in the center of the dustproof net plate through a bearing, a movable rod with bristles is arranged on the surface of the dustproof net, matching of two couplings in the dustproof net plate can be adjusted according to the use condition to control the movable rod to rotate, then cleaning work on the surface of the dustproof net is achieved, and the ventilation effect of the dustproof net is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of fans, and more specifically, to a device for reducing wear of fans. Background Art

[0002] A centrifugal fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine and is widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and draft of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and selection of grains; inflation and propulsion of wind tunnel wind sources and hovercraft, etc. When a centrifugal fan works in a dusty environment, the continuously rotating fan blades can easily inhale dust impurities, thereby increasing the wear of the fan rotor. The prior art discloses an anti-wear fan (patent announcement number: CN 218780557U), which is provided with a dustproof net on one side of the fan barrel to prevent the dust in the air from being inhaled and causing wear to the fan. However, after long-term use, the dustproof net will accumulate a large amount of dust, resulting in poor ventilation, affecting the flow rate of the fan inlet and outlet. At the same time, the fixed support legs cannot adjust the height and angle of the fan, resulting in limitations in its use. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide a fan wear reduction device, which can realize automatic cleaning of the outer dust screen and adjust the height angle of the fan to improve its practicality.

[0005] 2. Technical solution

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] A fan wear reduction device comprises a fan cylinder and a base plate, wherein the fan cylinder is cylindrical and open at both ends, a cross support frame is arranged inside the fan cylinder, a motor is fixed at the center of the cross support frame, a rotating shaft is arranged at the output end of the motor, blades are evenly fixed on the surface of the rotating shaft, a coupling B is arranged at the end of the rotating shaft away from the motor, blocks are evenly arranged inside one side of the fan cylinder, a dustproof screen is fixed inside one end of the fan cylinder, the dustproof screen is in contact with the block, the dustproof screen is placed on the side of the block away from the blade, a connecting shaft is installed at the center of the dustproof screen through a bearing, a movable rod is fixedly arranged at the end of the connecting shaft away from the blade, bristles are evenly arranged on the surface of one side of the movable rod, and the bristles are in contact with the surface of the dustproof screen.

[0008] Furthermore, the connecting shaft passes through the dustproof mesh plate, and a sliding groove is provided on the surface of one end of the connecting shaft close to the blade. A square rod is slidably installed on the inner side of the sliding groove, and a coupling A is provided on the end of the square rod. The coupling A is placed on the outer side of the connecting shaft, and the positions of the coupling A and the coupling B correspond.

[0009] Furthermore, an adjusting bolt is screwed onto the outer surface of the movable rod, and the end of the adjusting bolt is installed on the end surface of the square rod away from the coupling A through a bearing.

[0010] Furthermore, an extension shaft is symmetrically arranged on the outer surface of the fan cylinder, the bottom plate is placed below the fan cylinder, and vertical cylinders are symmetrically arranged on both sides of the upper surface of the bottom plate.

[0011] Furthermore, a lifting rod is vertically slidably installed on the top of the vertical cylinder, and the end of the extension shaft away from the fan cylinder is installed on the top of the lifting rod through a bearing, and a locking bolt is screwed on one side of the lifting rod.

[0012] Furthermore, positioning holes are evenly opened on the outer surface of the lifting rod, and positioning bolts are inserted and pulled out above the outer surface of the vertical tube, and the positioning bolts are adapted to the inner dimensions of the positioning holes.

[0013] 3. Beneficial effects

[0014] Compared with the prior art, the advantages of the utility model are: the utility model provides a fan wear reduction device, and a movable rod with bristles is arranged on the surface of the dustproof net. According to the usage, the cooperation of the two internal couplings can be adjusted to control the rotation of the movable rod, thereby realizing the cleaning work of the dustproof net surface and ensuring the ventilation effect of the dustproof net. At the same time, the height and angle of the fan can be adjusted to improve the practicability of the fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the longitudinal cross-sectional structure of the fan cylinder of the utility model;

[0017] Figure 3 For the utility model Figure 2 A schematic diagram of the enlarged structure of area A;

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the bottom plate of the utility model.

[0019] Explanation of the numbers in the figure: 1. Fan cylinder; 2. Extension shaft; 3. Base plate; 4. Vertical cylinder; 5. Lifting rod; 6. Locking bolt; 7. Positioning hole; 8. Positioning bolt; 9. Cross support frame; 10. Motor; 11. Rotating shaft; 12. Blade; 13. Block; 14. Dustproof mesh plate; 15. Connecting shaft; 16. Movable rod; 17. Brush; 18. Slide; 19. Square rod; 20. Coupling A; 21. Adjusting bolt; 22. Coupling B. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0021] Example:

[0022] See also Figure 1-Figure 3 As shown, a fan wear reduction device includes a fan cylinder 1 and a bottom plate 3. The fan cylinder 1 is cylindrical and open at both ends. A cross support frame 9 is arranged inside the fan cylinder 1. A motor 10 is fixed at the center of the cross support frame 9. The cross support frame 9 can effectively support the motor 10 without hindering ventilation. A rotating shaft 11 is arranged at the output end of the motor 10. Blades 12 are evenly fixed on the surface of the rotating shaft 11. Ventilation is achieved by the rotation of the blades 12. A coupling B22 is arranged at the end of the rotating shaft 11 away from the motor 10. Blocks 13 are evenly opened inside one side of the fan cylinder 1. A The dustproof mesh plate 14 and the block 13 can improve the convenience of installing the dustproof mesh plate 14. The dustproof mesh plate 14 is in contact with the block 13. The dustproof mesh plate 14 is placed on the side of the block 13 away from the blade 12. A connecting shaft 15 is installed at the center of the dustproof mesh plate 14 through a bearing. A movable rod 16 is fixedly provided at one end of the connecting shaft 15 away from the blade 12. The movable rod 16 can rotate around the axis of the connecting shaft 15. Brushes 17 are evenly arranged on the surface of one side of the movable rod 16. The bristles 17 are in contact with the surface of the dustproof mesh plate 14. When the movable rod 16 rotates, the bristles 17 and the dustproof mesh plate 14 can be cleaned by relative movement.

[0023] Please refer to Figure 3As shown, the connecting shaft 15 passes through the dustproof mesh plate 14, and a slide groove 18 is provided on the surface of one end of the connecting shaft 15 close to the blade 12. A square rod 19 is slidably installed on the inner side of the slide groove 18. The cooperation between the square rod 19 and the slide groove 18 can realize the synchronous rotation of the coupling A20 and the connecting shaft 15. A coupling A20 is provided at the end of the square rod 19, and the coupling A20 is placed on the outside of the connecting shaft 15. The positions of the coupling A20 and the coupling B22 correspond to each other. An adjusting bolt 21 is screwed on the outer surface of the movable rod 16, and the end of the adjusting bolt 21 is installed on the end surface of the square rod 19 away from the coupling A20 through a bearing. By rotating the adjusting bolt 21, whether the coupling A20 and the coupling B22 cooperate can be controlled, and then whether the outer movable rod 16 can rotate can be controlled. When cooperating, the motor 10 is controlled to reduce the speed to prevent the movable rod 16 from rotating too fast to hinder the dustproof mesh plate 14 and the bristles 17.

[0024] Please refer to Figure 1 and Figure 4 As shown, an extension shaft 2 is symmetrically arranged on the outer surface of the fan cylinder 1, a base plate 3 is placed below the fan cylinder 1, vertical cylinders 4 are symmetrically arranged on both sides of the upper surface of the base plate 3, a lifting rod 5 is vertically slidably installed on the top of the vertical cylinder 4, and the end of the extension shaft 2 facing away from the fan cylinder 1 is installed on the top of the lifting rod 5 through a bearing, and a locking bolt 6 is screwed on one side of the lifting rod 5. The fan cylinder 1 can rotate around the axis of the extension shaft 2 to adjust the wind direction, and is fixed by the locking bolt 6.

[0025] Among them, positioning holes 7 are evenly opened on the outer surface of the lifting rod 5, and positioning bolts 8 are inserted and pulled out above the outer surface of the vertical tube 4. The positioning bolts 8 are adapted to the internal dimensions of the positioning holes 7. The height of the fan cylinder 1 is controlled by controlling the height of the lifting rod 5, and the height is fixed by the cooperation of the positioning bolts 8 and the positioning holes 7.

[0026] Working principle: The height and air outlet angle of the fan can be adjusted according to the usage. When adjusting, the lifting rod 5 is controlled to slide in the vertical direction, and is fixed by the cooperation of the positioning bolt 8 and the positioning hole 7 to maintain high stability. At the same time, the angle of the fan can be controlled to make the extension shaft 2 rotate, and then it is locked and fixed by the locking bolt 6. When working, the motor 10 can drive the rotating shaft 11 to rotate, and then drive the blades 12 and the coupling B22 to rotate to achieve blowing. The movement of the square rod 19 is controlled by externally rotating the adjustment bolt 21, and then the cooperation of the coupling A20 and the coupling B22 is controlled. When the two cooperate with each other, the connecting shaft 15 can be driven to rotate, and then the movable rod 16 can be driven to rotate around the axis of the connecting shaft 15. The dust remaining on the surface of the dustproof screen 14 can be cleaned by the bristles 17 to prevent the mesh from being blocked and hindering ventilation.

[0027] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A fan wear reduction device, comprising a fan cylinder (1) and a base plate (3), characterized in that: The fan cylinder (1) is cylindrical and open at both ends. A cross support frame (9) is arranged inside the fan cylinder (1). A motor (10) is fixed at the center of the cross support frame (9). A rotating shaft (11) is arranged at the output end of the motor (10). Blades (12) are evenly fixed on the surface of the rotating shaft (11). A coupling B (22) is arranged at one end of the rotating shaft (11) away from the motor (10). Blocks (13) are evenly arranged inside one side of the fan cylinder (1). A dustproof screen (14) is fixed to the part, the dustproof screen (14) is in contact with the block (13), the dustproof screen (14) is placed on the side of the block (13) away from the blade (12), a connecting shaft (15) is installed at the center of the dustproof screen (14) through a bearing, a movable rod (16) is fixedly arranged at one end of the connecting shaft (15) away from the blade (12), and bristles (17) are evenly arranged on one side of the movable rod (16), and the bristles (17) are in contact with the surface of the dustproof screen (14).

2. A fan wear reduction device according to claim 1, characterized in that: The connecting shaft (15) passes through the dustproof screen (14); a sliding groove (18) is provided on the surface of one end of the connecting shaft (15) close to the blade (12); a square rod (19) is slidably installed inside the sliding groove (18); a coupling A (20) is provided at the end of the square rod (19); the coupling A (20) is placed on the outside of the connecting shaft (15); and the coupling A (20) corresponds to the position of the coupling B (22).

3. A fan wear reduction device according to claim 2, characterized in that: An adjusting bolt (21) is screwed onto the outer surface of the movable rod (16), and the end of the adjusting bolt (21) is mounted on an end surface of the square rod (19) away from the coupling A (20) through a bearing.

4. The fan wear reduction device according to claim 1, characterized in that: The outer surface of the fan cylinder (1) is symmetrically provided with an extension shaft (2), the bottom plate (3) is placed below the fan cylinder (1), and vertical cylinders (4) are symmetrically provided on both sides of the upper surface of the bottom plate (3).

5. A fan wear reduction device according to claim 4, characterized in that: A lifting rod (5) is vertically slidably mounted on the top of the vertical cylinder (4); one end of the extension shaft (2) facing away from the fan cylinder (1) is mounted on the top of the lifting rod (5) via a bearing; a locking bolt (6) is screwed on one side of the lifting rod (5).

6. A fan wear reduction device according to claim 5, characterized in that: Positioning holes (7) are evenly formed on the outer surface of the lifting rod (5), and positioning bolts (8) are inserted and pulled out above the outer surface of the vertical tube (4), and the positioning bolts (8) are adapted to the internal dimensions of the positioning holes (7).

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