Cooling tower fan air supply assembly

Abstract

The utility model relates to the technical field of air supply assemblies, in particular to an air supply assembly of a cooling tower fan. According to the technical scheme, the cleaning device comprises a mounting frame, a motor, a cleaning box, a rotating shaft and a mounting plate, a bearing support is arranged in the mounting frame, the rotating shaft is rotationally inserted into the bearing support, fan blades are arranged on the outer wall of the upper end of the rotating shaft, a transmission wheel is arranged at the lower end of the rotating shaft, and the motor is arranged on one side of the upper end of the mounting frame; rotating wheels are arranged at the lower end of the motor, the outer walls of the rotating wheels and the outer walls of the transmission wheels are rotationally sleeved with a transmission belt, the outer side of the transmission belt is sleeved with a cleaning box, a suction pipe is installed in the cleaning box, a mounting plate is arranged in the cleaning box, and a spring is connected between the mounting plate and the inner wall of the cleaning box; and a brush is arranged at one end of the mounting plate. The cleaning brush is arranged on the outer side of the transmission belt, so that foreign matters adhered to the belt are separated, and the problem that the transmission structure in the air supply assembly is high in friction loss due to the foreign matters is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of air supply components, in particular to an air supply component for a cooling tower fan. Background Art

[0002] Cooling towers are mainly used for cooling water or other fluids. By spraying hot water or other media onto the top of the tower, the heat transfer and mass transfer between the gas-liquid two phases are promoted by using the packing structure and air supply structure inside the tower. The air supply component includes a fan, whose function is to generate air flow and transport air into the cooling tower.

[0003] The air flow generated by the rotation of the fan can promote the heat exchange process, enabling the hot water or other media to be effectively cooled in the cooling tower. The air supply structure of the fan includes a driving motor, a transmission belt, a transmission wheel, etc. Among them, foreign matters will adhere to the outer wall of the transmission belt during use, resulting in an increase in the friction between the transmission belt and the transmission wheel. In the long run, it may cause surface damage or breakage of the transmission belt, leading to unbalanced conduction and reducing the service life of the air supply structure. Therefore, we propose an air supply component for a cooling tower fan to solve the existing problems. Summary of the Utility Model

[0004] The purpose of the utility model is to propose an air supply component for a cooling tower fan aiming at the problems existing in the background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An air supply component for a cooling tower fan, including an installation frame, a motor, a cleaning box, a rotating shaft and a mounting plate. A bearing bracket is arranged inside the installation frame, and the rotating shaft is rotatably inserted inside the bearing bracket. The outer wall of the upper end of the rotating shaft is provided with fan blades distributed in a circumferential array. A transmission wheel is arranged at the lower end of the rotating shaft. A motor is arranged on one side of the upper end of the installation frame. A rotating wheel is arranged at the lower end of the motor. Transmission belts are rotatably sleeved on the outer walls of the rotating wheel and the transmission wheel respectively. A cleaning box is sleeved outside the transmission belt. A suction pipe is installed through the upper end inside the cleaning box. Symmetrically distributed mounting plates are arranged inside the cleaning box. Springs are connected between the mounting plates and the inner wall of the cleaning box. One end of the mounting plate is provided with brushes distributed in a rectangular array.

[0006] Preferably, the installation frame is annular, and installation holes distributed in a circumferential array are formed inside the installation frame. The annular structure is convenient for installation in a cylindrical cooling tower, and the installation holes are used for inserting fixing parts.

[0007] Preferably, a machine base connected to the upper end of the installation frame is sleeved on the outer wall of the motor, and a base fixed to the upper end of the bearing bracket is arranged at the lower end of the cleaning box. The machine base fixes the motor, the motor is stabilized on the installation frame, and the base supports the bottom of the cleaning box.

[0008] Preferably, a suction hood is provided at the lower end of the suction pipe. The suction hood transmits the suction force of the suction pipe to the inside of the cleaning box.

[0009] Preferably, the suction hood is located inside the upper end of the cleaning box and above the mounting plate. The use of the suction hood does not affect the installation and use of the mounting plate.

[0010] Preferably, a guide rod with one end connected to the mounting plate is provided inside the spring. Two symmetrically distributed sliding sleeves are embedded and installed inside the cleaning box, and one end of the guide rod is slidably inserted into the sliding sleeve. When the spring expands and contracts, the guide rod slides inside the sliding sleeve to guide the telescopic spring and prevent the spring from shifting outward.

[0011] Preferably, the bearing bracket includes a bearing seat and a support rod, and the support rods are distributed in a circular array between the mounting frame and the bearing seat. The lower end of the rotating shaft is rotatably inserted into the bearing seat. The air flow effectively passes through the mounting frame, reducing the weight of the equipment.

[0012] Preferably, the suction pipe is a universal pipe, and travel ports are opened inside both ends of the cleaning box, and the transmission belt is located inside the travel ports. The universal pipe enables the suction pipe to be bent and adjusted at an angle, facilitating the adjustment of the position in a complex structure and avoiding hindering the use of other structural components.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. In the present utility model, the motor drives the rotating wheel to rotate, the transmission belt is used to link the driving wheel, driving the rotating shaft to rotate. After the rotating shaft rotates, it drives the fan blades to rotate to generate air flow and deliver the air to the cooling tower. When the transmission belt rotates, it contacts the outer brush, brushing off the foreign objects adhered to the outer side of the transmission belt, realizing the cleaning of foreign objects. Moreover, the separated foreign objects are collected through the negative pressure suction structure, ensuring the cleanliness of the outer wall of the transmission belt, reducing the loss caused by the friction of foreign objects, and improving its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a top perspective structural schematic diagram of the present utility model;

[0016] Figure 2 is a bottom perspective structural schematic diagram of the present utility model;

[0017] Figure 3 is a front perspective structural schematic diagram of the cleaning box of the present utility model;

[0018] Figure 4 is a side sectional perspective structural schematic diagram of the cleaning box of the present utility model;

[0019] Figure 5This is the schematic three-dimensional structure diagram of the main cross-section of the cleaning box of the present utility model.

[0020] Reference numerals: 1, mounting bracket; 2, motor; 3, cleaning box; 4, driving wheel; 5, fan blade; 6, suction pipe; 7, machine base; 8, rotating shaft; 9, mounting hole; 10, bearing bracket; 11, rotating wheel; 12, transmission belt; 13, suction hood; 14, guide rod; 15, sliding sleeve; 16, spring; 17, mounting plate; 18, brush; 19, base; 20, stroke port. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] As Figures 1-5 shown, a cooling tower fan air supply component proposed by the present utility model includes a mounting bracket 1, a motor 2, a cleaning box 3, a rotating shaft 8 and a mounting plate 17. A bearing bracket 10 is arranged inside the mounting bracket 1, and a rotating shaft 8 is rotatably inserted inside the bearing bracket 10. The outer wall of the upper end of the rotating shaft 8 is provided with fan blades 5 distributed in an annular array. A driving wheel 4 is arranged at the lower end of the rotating shaft 8. A motor 2 is arranged on one side of the upper end of the mounting bracket 1. A rotating wheel 11 is arranged at the lower end of the motor 2. Transmission belts 12 are rotatably sleeved on the outer walls of the rotating wheel 11 and the driving wheel 4 respectively. A cleaning box 3 is sleeved outside the transmission belt 12. A suction pipe 6 is penetrated and installed inside the upper end of the cleaning box 3. Symmetrically distributed mounting plates 17 are arranged inside the cleaning box 3. Springs 16 are connected between the mounting plates 17 and the inner wall of the cleaning box 3. One end of the mounting plate 17 is provided with brushes 18 distributed in a rectangular array;

[0023] The mounting bracket 1 is annular, and mounting holes 9 distributed in an annular array are formed inside the mounting bracket 1;

[0024] A machine base 7 connected to the upper end of the mounting bracket 1 is sleeved on the outer wall of the motor 2, and a base 19 fixed to the upper end of the bearing bracket 10 is arranged at the lower end of the cleaning box 3;

[0025] A suction hood 13 is arranged at the lower end of the suction pipe 6;

[0026] The suction hood 13 is located inside the upper end of the cleaning box 3 and above the mounting plate 17.

[0027] A guide rod 14 with one end connected to the mounting plate 17 is arranged inside the spring 16. Two groups of symmetrically distributed sliding sleeves 15 are embedded and installed inside the cleaning box 3. One end of the guide rod 14 is slidably inserted inside the sliding sleeve 15;

[0028] The bearing bracket 10 includes a bearing seat and support rods, and the support rods are distributed in a circular array between the mounting frame 1 and the bearing seat. The lower end of the rotating shaft 8 is rotatably inserted into the interior of the bearing seat.

[0029] The suction pipe 6 is a universal pipe. Stroke openings 20 are formed in the interiors of both ends of the cleaning box 3, and the transmission belt 12 is located inside the stroke openings 20.

[0030] Based on the implementation steps of Embodiment 1: The mounting frame 1 is installed inside the upper end of the cooling tower and is fixed by inserting fixing parts through the mounting holes 9. The suction pipe 6 is arranged in position through the structure of the universal pipe, and at the same time, one end is connected to a negative pressure air source. During use, the motor 2 drives the rotating wheel 11 to rotate, drives the driven wheel to rotate through the transmission belt 12, and further causes the rotating shaft 8 to rotate. When the rotating shaft 8 rotates, it drives the fan blades 5 to rotate to generate a flowing air current, performing heat exchange inside the cooling tower. During this process, foreign matters in the air current will adhere to the transmission belt 12. After long-term use, dirt will accumulate on the belt. When the transmission belt 12 passes through the brush 18, the foreign matters on the outer side of the transmission belt 12 are separated through the brush 18. The suction force of the negative pressure air source acts on the suction pipe 6, and the foreign matters separated from the outer wall of the transmission belt 12 are sucked through the suction cover 13, avoiding secondary adhesion of the foreign matters, and the outer wall of the transmission belt 12 is cleaned.

[0031] The accumulation of foreign matters may cause an increase in the friction between the transmission belt 12 and the transmission wheel 4, thereby reducing the transmission efficiency, increasing the vibration of the fan and its driving motor 2, and increasing the difficulty of maintenance. Through the self-cleaning of the transmission belt 12, it is ensured that its surface operates in a clean, flat, and foreign matter-free state, improving the service life. Since the mounting plate 17 is elastically supported by the spring 16, when the brush 18 is worn, the spring 16, through its own elasticity, pushes the mounting plate 17 to always fit on the transmission belt 12, improving the stability of the self-cleaning structure.

[0032] The above specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant revelations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

[0033] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A cooling tower fan air supply assembly, comprising a mounting frame (1), a motor (2), a cleaning box (3), a rotating shaft (8) and a mounting plate (17), characterized in that: A bearing bracket (10) is arranged inside the mounting frame (1), a rotating shaft (8) is rotatably inserted inside the bearing bracket (10), the outer wall of the upper end of the rotating shaft (8) is provided with fan blades (5) distributed in a ring array, the lower end of the rotating shaft (8) is provided with a transmission wheel (4), a motor (2) is arranged on one side of the upper end of the mounting frame (1), a rotating wheel (11) is arranged at the lower end of the motor (2), a transmission belt (12) is rotatably sleeved on the outer wall of the rotating wheel (11) and the transmission wheel (4), a cleaning box (3) is sleeved on the outer side of the transmission belt (12), a suction pipe (6) is installed through the upper end of the cleaning box (3), symmetrically distributed mounting plates (17) are arranged inside the cleaning box (3), a spring (16) is connected between the mounting plate (17) and the inner wall of the cleaning box (3), and a brush (18) distributed in a rectangular array is arranged at one end of the mounting plate (17).

2. A cooling tower fan air supply assembly according to claim 1, characterized in that: The mounting frame (1) is annular in shape, and mounting holes (9) distributed in an annular array are provided inside the mounting frame (1).

3. A cooling tower fan air supply assembly according to claim 1, characterized in that: The outer wall of the motor (2) is sleeved with a machine base (7) connected to the upper end of the mounting frame (1), and the lower end of the cleaning box (3) is provided with a base (19) fixed to the upper end of the bearing bracket (10).

4. A cooling tower fan air supply assembly according to claim 1, characterized in that: A suction hood (13) is provided at the lower end of the suction pipe (6).

5. A cooling tower fan air supply assembly according to claim 4, characterized in that: The suction hood (13) is located inside the upper end of the cleaning box (3), and the suction hood (13) is located above the mounting plate (17).

6. A cooling tower fan air supply assembly according to claim 1, characterized in that: A guide rod (14) having one end connected to a mounting plate (17) is arranged inside the spring (16); two groups of symmetrically distributed sliding sleeves (15) are embedded and installed inside the cleaning box (3); one end of the guide rod (14) is slidably inserted into the sliding sleeve (15).

7. A cooling tower fan air supply assembly according to claim 1, characterized in that: The bearing support (10) comprises a bearing seat and support rods, and the support rods are distributed in a ring array between the mounting frame (1) and the bearing seat, and the lower end of the rotating shaft (8) is rotatably inserted into the interior of the bearing seat.

8. A cooling tower fan air supply assembly according to claim 1, characterized in that: The suction pipe (6) is a universal pipe, and travel openings (20) are provided inside both ends of the cleaning box (3), and the transmission belt (12) is located inside the travel openings (20).

Images