Cooling tower heat dissipation motor and fan blade assembly convenient to maintain

Abstract

The cooling tower heat dissipation motor and fan blade assembly convenient to maintain comprises a mounting plate, a motor, fan blades, a protective cover, a positioning mechanism and a turnover mechanism, the protective cover is arranged above a hollowed-out part, the periphery of the protective cover is fixedly connected with the mounting plate, the motor is arranged at the top of the protective cover, and part of the motor penetrates downwards to the hollowed-out part; the fan blades are arranged below the hollow part in the horizontal direction and are in transmission connection with a main shaft of the motor, the positioning mechanisms are evenly distributed on the periphery of the mounting plate, and the turnover mechanisms are arranged on the two sides of the mounting plate along the central axis of the mounting plate. The turnover mechanism can drive the mounting plate, the motor, the fan blades and the protective cover to be turned over integrally, so that the bottoms of the motor and the fan blades are turned over to upward positions so as to facilitate maintenance and cleaning, the mounting plate can be fixedly connected with an outlet of the cooling tower through the positioning mechanism, the whole operation process is convenient and rapid, and the working efficiency is improved. And the maintenance efficiency of the heat dissipation assembly is improved.

Description

Technical Field

[0001] This utility model relates to the field of cooling tower heat dissipation technology, and in particular to a cooling tower heat dissipation motor and fan blade assembly that is easy to maintain. Background Technology

[0002] A cooling tower is a device that uses water as a circulating coolant to absorb heat from a system and release it into the atmosphere, thereby lowering the water temperature. Based on the ventilation method, cooling towers can be divided into natural draft cooling towers and mechanical draft cooling towers. In mechanical draft cooling towers, a motor drives fan blades to rotate, thus dissipating heat from inside the cooling tower into the atmosphere.

[0003] In existing cooling tower structures, such as the cooling tower disclosed in patent CN222364431U, the heat dissipation components include a connecting frame, a motor, and several diffuser blades. The connecting frame is fixed in the air duct, the motor is fixed on the connecting frame, and the diffuser blades are evenly arranged on the output end of the motor. However, since cooling towers typically face harsh conditions such as high temperature, humidity, and dust, even with protective structures such as protective covers, corrosion of the motor and blades is inevitable. This makes the metal parts on the motor and blades prone to corrosion and rust, and the blades accumulate scale or dust, thus affecting the service life of the heat dissipation components.

[0004] Therefore, in practical use, frequent shutdowns for maintenance of the heat dissipation components are required. This includes tasks such as cleaning and wiping dirt from the motor and fan blades, checking for rust, applying lubricant, and replacing damaged parts. However, these operations are sometimes hindered by structures like connecting brackets and protective covers, requiring disassembly. Furthermore, the downward-facing side of the fan blades is difficult to inspect and clean, making the entire maintenance process cumbersome and inefficient, thus requiring improvement. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model discloses a cooling tower heat dissipation motor and fan blade assembly that is easy to maintain, including a mounting plate, a motor, fan blades, a protective cover, a positioning mechanism, and a flipping mechanism. The center of the mounting plate is a hollow part. The protective cover is set above the hollow part and is fixedly connected to the mounting plate on all four sides. The motor is set on the top of the protective cover and partially extends downwards into the hollow part. The fan blades are set horizontally below the hollow part and are drivenly connected to the main shaft of the motor. The positioning mechanism is evenly distributed around the mounting plate and is used to fix it to the outlet of the cooling tower. The flipping mechanism is set on both sides of the central axis of the mounting plate.

[0006] Furthermore, the positioning mechanism includes a positioning seat, a positioning cover, an insert plate, and a lever. The positioning seat is fixedly mounted on the top of the mounting plate. The positioning cover is mounted above the positioning seat, and a cavity is formed between the two. The insert plate is slidably mounted in the cavity, and one end can extend out of the cavity. The lever is mounted on the top of the insert plate and extends out of the outside of the positioning cover. The top of the positioning cover is provided with a sliding groove for the lever to move.

[0007] Furthermore, a first limiting groove communicating with the end of the slide is provided on one side, and a second limiting groove parallel to the first limiting groove is provided on the insert plate at the position corresponding to the lever.

[0008] Furthermore, a retaining ring is provided on the lever at the top of the positioning cover and at the bottom of the insert plate.

[0009] Furthermore, a spring is provided on each side of the insert plate inside the cavity, and the two ends of the spring are respectively connected to the inner wall of the end of the insert plate and the end of the positioning cover.

[0010] Furthermore, the flipping mechanism includes a first rotating shaft and a second rotating shaft. The first rotating shaft and the second rotating shaft are respectively fixedly installed at the bottom of both ends of the mounting plate by connecting blocks, and both the first rotating shaft and the second rotating shaft are located on the central axis of the mounting plate.

[0011] Furthermore, the end of the first rotating shaft is provided with a first bevel gear, a third rotating shaft is provided longitudinally on one side of the first bevel gear, a second bevel gear is provided on the third rotating shaft, and the second bevel gear meshes with the first bevel gear.

[0012] Furthermore, a handwheel is provided at the upper end of the third rotating shaft.

[0013] Furthermore, the lower end of the third rotating shaft is provided with a threaded sleeve, and a locking nut is threadedly connected to the outer side of the threaded sleeve.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model uses a flipping mechanism to flip the mounting plate, motor, fan blades, and protective cover together, thereby flipping the bottom of the motor and fan blades to face upwards for easy inspection and cleaning. Furthermore, the mounting plate can be fixedly connected to the outlet of the cooling tower through a positioning mechanism. The entire operation process is convenient and quick, improving the maintenance efficiency of the heat dissipation components. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 for Figure 1 Enlarged view of the local structure at point A;

[0019] Figure 3 This is a partial structural cross-sectional view of the positioning mechanism in this utility model;

[0020] Figure 4 This is a schematic diagram showing the connection between this utility model and the cooling tower outlet;

[0021] Figure 5 for Figure 4 Enlarged view of the local structure at point B;

[0022] Figure 6 This is a schematic diagram of the state of this utility model after it has been flipped over.

[0023] Figure label:

[0024] 1-Mounting plate, 2-Motor, 3-Fan blade, 4-Protective cover, 5-Positioning seat, 6-Positioning cover, 7-Insert plate, 8-Toggle lever, 9-Slide groove, 10-First limit groove, 11-Second limit groove, 12-Retaining ring, 13-Spring, 14-First rotating shaft, 15-Second rotating shaft, 16-Connecting block, 17-First bevel gear, 18-Third rotating shaft, 19-Second bevel gear, 20-Handwheel, 21-Threaded sleeve, 22-Locking nut, 23-Support plate, 24-Threaded ring. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0027] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0028] In the description of the embodiments, unless otherwise expressly specified and limited, the terms "set," "connect," etc., should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or a connection through an intermediate medium, or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] like Figure 1 As shown, the easy-to-maintain cooling tower heat dissipation motor and fan blade assembly in this embodiment includes a mounting plate 1, a motor 2, fan blades 3, a protective cover 4, a positioning mechanism, and a flipping mechanism. The center of the mounting plate 1 is a hollow section, and the protective cover 4 is disposed above the hollow section and fixedly connected to the mounting plate 1 around its perimeter. The mounting plate 1 can be square or round, depending on the shape of the cooling tower outlet, and its size is slightly smaller than the size of the cooling tower outlet. The hollow section is preferably round to facilitate the outward diffusion of heat from inside the cooling tower.

[0030] The motor 2 is located on the top of the protective cover 4 and extends downwards into the hollow part. The fan blade 3 is located horizontally below the hollow part and is connected to the main shaft of the motor 2. The motor 2 can drive the fan blade 3 to rotate, thereby dissipating the heat inside the cooling tower to the outside.

[0031] Positioning mechanisms are evenly distributed around the perimeter of the mounting plate 1 for fixed connection with the cooling tower outlet. Tilting mechanisms are arranged on both sides of the mounting plate 1 along its central axis. To improve the sealing effect between the mounting plate 1 and the cooling tower outlet, rubber sealing strips can be installed around the perimeter of the mounting plate 1 and / or the cooling tower outlet. When the mounting plate 1 is installed on the cooling tower outlet, the rubber sealing strips can achieve a seal between the outer perimeter of the mounting plate 1 and the inner wall of the cooling tower outlet. Of course, rubber sealing strips are not strictly necessary.

[0032] like Figure 2-3 As shown, the positioning mechanism includes a positioning seat 5, a positioning cover 6, an insert plate 7, and a lever 8. The positioning seat 5 is fixedly installed on the top of the mounting plate 1. The positioning cover 6 is installed above the positioning seat 5, and a cavity is formed between the two. The insert plate 7 is slidably installed in the cavity, and one end can extend out of the cavity. The lever 8 is installed on the top of the insert plate 7 and extends out of the outside of the positioning cover 6.

[0033] The top of the positioning cover 6 is provided with a sliding groove 9 for the lever 8 to move. A first limiting groove 10 communicating with the end of the sliding groove 9 is provided on one side. A second limiting groove 11 parallel to the first limiting groove 10 is provided on the insert plate 7 at the position corresponding to the lever 8.

[0034] A retaining ring 12 is provided on the lever 8 at the top of the positioning cover 6 and the bottom of the insertion plate 7. A spring 13 is provided on each side of the insertion plate 7 inside the cavity. The two ends of the spring 13 are connected to the inner wall of the end of the insertion plate 7 and the end of the positioning cover 6, respectively.

[0035] Moving the lever 8 along the slide groove 9 allows the insert plate 7 to enter or exit the cavity. When the lever 8 moves to the end of the slide groove 9, it can be moved towards the second limiting groove 11 to enter the first limiting groove 10, thereby temporarily locking the position of the insert plate 7 to facilitate the flipping of the mounting plate 1. After flipping, the lever 8 is moved out of the first limiting groove 10, and under the action of the spring 13, the insert plate 7 is pushed out and inserted into the slot on the side wall of the cooling tower outlet, thus connecting the mounting plate 1 to the cooling tower outlet.

[0036] like Figure 4-5 As shown, the flipping mechanism includes a first rotating shaft 14 and a second rotating shaft 15. The first rotating shaft 14 and the second rotating shaft 15 are respectively fixedly installed at the bottom of both ends of the mounting plate 1 through connecting blocks 16, and the first rotating shaft 14 and the second rotating shaft 15 are both located on the central axis of the mounting plate 1.

[0037] The end of the first rotating shaft 14 is provided with a first bevel gear 17, and a third rotating shaft 18 is provided longitudinally on one side of the first bevel gear 17. A second bevel gear 19 is provided on the third rotating shaft 18, and the second bevel gear 19 meshes with the first bevel gear 17. A handwheel 20 is provided at the upper end of the third rotating shaft 18.

[0038] The lower end of the third rotating shaft 18 is provided with a threaded sleeve 21, and a locking nut 22 is threadedly connected to the outer side of the threaded sleeve 21.

[0039] In use, the mounting plate 1 is installed at the outlet of the top of the cooling tower, and the first rotating shaft 14 and the second rotating shaft 15 are rotatably connected to the outlet side wall of the cooling tower, respectively. The rotatable connection between the two can be equipped with a bearing or a rotating bushing, etc. At the same time, the insert plate 7 is inserted into the slot on the outlet side wall of the cooling tower. The lower end of the third rotating shaft 18 is rotatably connected to the support plate 23 on the outer wall of the cooling tower outlet. The bottom of the support plate 23 is provided with a threaded ring 24 located outside the third rotating shaft 18. When the mounting plate 1 is normally installed on the cooling tower outlet, the locking nut 22 is located below the threaded sleeve 21 and is not connected to the threaded ring 24.

[0040] When maintenance of the heat dissipation components is required, firstly, the insert plate 7 is pulled out of the slot on the side wall of the cooling tower outlet using the lever 8. Then, the handwheel 20 drives the third rotating shaft 18 and the second bevel gear 19 to rotate. The second bevel gear 19 further drives the first bevel gear 17 to rotate, and the first bevel gear 17 drives the first rotating shaft 14 to rotate, thereby allowing the mounting plate 1 to flip upwards, forming a... Figure 6 The state shown exposes the bottom of motor 2 and fan blade 3 for easy inspection and cleaning.

[0041] After the mounting plate 1 is rotated 180°, in order to fix the position of the mounting plate 1, the locking nut 22 can be rotated upward along the threaded sleeve 21 to connect with the threaded ring 24, and the upper end face of the locking nut 22 is pressed against the bottom of the support plate 23, so that the third rotating shaft 18 cannot be easily rotated, thereby locking the position of the mounting plate 1.

[0042] In summary, the entire operation process does not involve any disassembly or assembly of parts, thus greatly simplifying the inspection and cleaning process of the heat dissipation components and improving the maintenance efficiency of the heat dissipation components.

[0043] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope claimed by this utility model.

Claims

1. A cooling tower motor and fan assembly that is easy to maintain, characterized by: The device includes a mounting plate, a motor, fan blades, a protective cover, a positioning mechanism, and a flipping mechanism. The center of the mounting plate is a hollow section. The protective cover is located above the hollow section and is fixedly connected to the mounting plate on all four sides. The motor is located on the top of the protective cover and partially extends downwards into the hollow section. The fan blades are horizontally located below the hollow section and are connected to the main shaft of the motor for transmission. The positioning mechanisms are evenly distributed around the mounting plate and are used for fixed connection to the outlet of the cooling tower. The flipping mechanisms are located on both sides of the central axis of the mounting plate.

2. The maintenance-friendly cooling tower heat dissipating motor and fan blade assembly of claim 1, wherein: The positioning mechanism includes a positioning seat, a positioning cover, an insert plate, and a lever. The positioning seat is fixedly mounted on the top of the mounting plate. The positioning cover is mounted above the positioning seat, and a cavity is formed between the two. The insert plate is slidably mounted in the cavity, and one end can extend out of the cavity. The lever is mounted on the top of the insert plate and extends out of the outside of the positioning cover. The top of the positioning cover is provided with a sliding groove for the lever to move.

3. The maintenance-friendly cooling tower heat dissipating motor and fan blade assembly of claim 2, wherein: The slide has a first limiting groove communicating with it on one side of the end, and the insert plate has a second limiting groove parallel to the first limiting groove at the position corresponding to the lever.

4. The maintenance-friendly cooling tower heat dissipating motor and fan blade assembly of claim 2, wherein: The lever is equipped with a retaining ring at the top of the positioning cover and at the bottom of the insert plate.

5. The maintenance-friendly cooling tower heat dissipating motor and fan blade assembly of claim 2, wherein: A spring is provided on each side of the insert plate inside the cavity, and the two ends of the spring are respectively connected to the inner wall of the end of the insert plate and the end of the positioning cover.

6. The easy-to-maintain cooling tower heat dissipation motor and fan blade assembly according to claim 1, characterized in that: The flipping mechanism includes a first rotating shaft and a second rotating shaft. The first rotating shaft and the second rotating shaft are respectively fixedly installed at the bottom of both ends of the mounting plate through connecting blocks, and both the first rotating shaft and the second rotating shaft are located on the central axis of the mounting plate.

7. The maintenance-friendly cooling tower heat dissipating motor and fan blade assembly of claim 6, wherein: The first rotating shaft has a first bevel gear at its end, and a third rotating shaft is provided longitudinally on one side of the first bevel gear. The third rotating shaft has a second bevel gear, and the second bevel gear meshes with the first bevel gear.

8. The maintenance-friendly cooling tower heat dissipating motor and fan blade assembly of claim 7, wherein: A handwheel is provided at the upper end of the third rotating shaft.

9. The maintenance-friendly cooling tower heat dissipating motor and fan blade assembly of claim 7, wherein: The lower end of the third rotating shaft is provided with a threaded sleeve, and a locking nut is threadedly connected to the outer side of the threaded sleeve.

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