A speed reducer for cooling tower

Abstract

This utility model relates to the field of speed reducer technology, specifically to a speed reducer for cooling towers. It includes a speed reducer body, a mounting plate fixedly connected to the bottom of the speed reducer body, a limiting plate for limiting the mounting plate's position at its bottom, mounting blocks fixedly connected to both sides of the limiting plate, and a mounting mechanism at the bottom of the mounting plate. The mounting mechanism includes an insert block fixedly connected to the bottom of the mounting plate, a limiting groove formed at the top of the limiting plate, and both the insert block and the limiting groove are polygonal in shape. The outer wall of the insert block matches the inner wall of the limiting groove, and a first groove is formed at the bottom of the insert block. Compared to existing technologies, the overall mechanism of this application only requires a single lever operation to complete the installation, effectively simplifying the installation process of the speed reducer body, significantly reducing manual labor intensity, and improving the installation efficiency and operational reliability of the equipment. It is particularly suitable for cooling tower applications requiring frequent maintenance.

Description

Technical Field

[0001] This utility model relates to the field of speed reducer technology, and in particular to a speed reducer for cooling towers. Background Technology

[0002] Cooling towers, as common cooling devices in industrial equipment, are widely used in circulating cooling systems in industries such as power, chemical, metallurgy, and pharmaceuticals. Their main function is to remove waste heat generated during equipment or processes through heat exchange between water and air, thus maintaining the normal operation of the equipment. One of the core operating components of a cooling tower is the fan system, while the speed reducer serves as a crucial transmission device connecting the motor and the fan, reducing speed, increasing torque, and stabilizing fan operation.

[0003] In existing technologies, cooling tower speed reducers are typically installed and fixed using multiple bolts and by workers repeatedly rotating them. While this type of structure can generally meet the usage requirements, it is generally not equipped with a dedicated quick-installation mechanism. Every time maintenance is needed, disassembly and reinstallation are required, making the installation process cumbersome and inefficient. This not only increases the labor intensity of workers but also consumes a lot of time. It is not suitable for cooling towers that require frequent maintenance and cannot meet the actual needs of rapid installation and efficient maintenance of the equipment. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a speed reducer for cooling towers to solve the problem that the existing speed reducers are not equipped with a quick installation mechanism, which leads to repeated disassembly of bolts during maintenance, resulting in cumbersome steps, low efficiency, increased labor intensity for workers, and a lot of time wasted.

[0005] To achieve the above objectives, this utility model provides a speed reducer for cooling towers, including a speed reducer body. A mounting plate is fixedly connected to the bottom of the speed reducer body. A limiting plate for limiting the position of the mounting plate is provided at the bottom of the mounting plate. Mounting blocks are fixedly connected to both sides of the limiting plate. An installation mechanism is provided at the bottom of the mounting plate. The installation mechanism includes an insert block fixedly connected to the bottom of the mounting plate. A limiting groove is formed at the top of the limiting plate. The insert block and the limiting groove are both polygonal in shape. The outer wall of the insert block and the inner wall of the limiting groove are adapted to each other.

[0006] Preferably, the bottom of the insert block has a first groove, the inner wall of the first groove is rotatably connected to a gear, the bottom of the gear is fixedly connected to a rotating disk, the outer wall of the rotating disk is fixedly connected to push blocks that are evenly distributed at equal intervals, the bottom of the insert block has multiple second grooves that are evenly distributed at equal intervals around the center point of the first groove, the second groove has a plug inside, the two ends of the plug are respectively inserted into the inside of the first groove and the outer wall of the insert block, the outer wall of the plug is fitted with a first spring, one end of the first spring is fixedly connected to the inner wall of the second groove, the other end of the first spring is fixedly connected to the outer wall of the plug, the end of the plug near the rotating disk is fixedly connected to an arc-shaped block, and the inner wall of the limiting groove has multiple slots that are evenly distributed at equal intervals.

[0007] Preferably, the outer wall of the gear meshes with a rack, the rack is slidably connected to the inner wall of the first groove, a push rod is fixedly connected to the side wall of the rack, the push rod is L-shaped, a support block is fixedly connected to the top of the mounting plate near the side wall of the reducer body, a clamping plate passes through the side wall of the support block, a first through groove is opened on the side wall of the clamping plate, a second spring is fixedly connected to the inner wall of the first through groove, and the other end of the second spring is fixedly connected to the side wall of the support block.

[0008] Preferably, the top of the mounting plate is provided with a second through groove, the bottom of the second through groove is connected to the inner wall of the first groove, and the top of the push rod passes through the second through groove and extends to the top of the mounting plate.

[0009] Preferably, a gripping rod for pushing the push rod is fixedly connected to the top end of the push rod, and the outer wall of the gripping rod is provided with an anti-slip groove.

[0010] Preferably, one side of the push block is provided with an arc-shaped structure, and the outer wall of the push block and the outer wall of the arc-shaped block are in contact. When the rotating disk rotates, it will drive the push block on the outer wall to rotate. The rotation of the push block will push the arc-shaped block and the plug to move towards the slot. One end of the plug will extend into the slot and fix the mounting plate.

[0011] Preferably, one end of the card plate is provided with an inclined surface structure. When the push rod moves to the inclined surface at one end of the card plate, it squeezes the card plate to move towards the supporting side. The card plate will compress the second spring in the first through groove. When one end of the push rod moves to the other side of the card plate, the second spring will release the spring force to push the card plate to move towards the push rod and abut against one side of the push rod.

[0012] The beneficial effects of this utility model are: The cooling tower uses a speed reducer and installation mechanism with significant advantages of compact structure and high operational efficiency. Through a polygonal mating structure of insert blocks and limiting slots, the mounting plate achieves rapid centering and anti-rotation positioning during the initial installation stage. A push rod drives a rack and pinion to mesh, thereby driving a rotating disk to rotate. This, in turn, causes multiple push blocks to apply force to the arc-shaped block, ensuring the insert pins are inserted along the slot direction and completing the limiting and fixing of the mounting plate. A locking plate and a ramp interference structure are installed at the end of the push rod, which, together with the first through slot and the second spring, form an automatic locking device. This device automatically limits and prevents loosening after the push rod completes its action, preventing loosening due to reverse rotation. This design allows the reducer body to loosen, requiring only bolts for the limit plate during installation. When frequently disassembling and reassembling the reducer body, the entire mechanism can be installed using a single lever, effectively simplifying the installation process. This reduces the installation time from approximately ten minutes in the traditional method to less than four minutes. Furthermore, the optimized design of the bolt structure provides a pull-out force of ≥800N, ensuring reliable locking and significantly reducing manual labor intensity. This improves the installation efficiency and operational reliability of the equipment, making it suitable for cooling tower applications requiring frequent maintenance. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a three-dimensional structural diagram of the insert block and the limiting groove of this utility model; Figure 3 This is a schematic diagram of the bottom structure of the mounting plate of this utility model; Figure 4 This is a schematic diagram of the three-dimensional pusher structure of this utility model; Figure 5 This is a schematic diagram of the rack and rack three-dimensional structure of the present invention.

[0015] The diagram is marked as follows: 1. Reducer body; 2. Mounting plate; 3. Limiting plate; 4. Mounting block; 5. Insert block; 6. Limiting groove; 7. First groove; 8. Gear; 9. Rotary disk; 10. Push block; 11. Second groove; 12. Bolt; 13. First spring; 14. Arc block; 15. Rack; 16. Push rod; 17. Support block; 18. Clamping plate; 19. First through groove; 20. Second spring; 21. Holding rod; 22. Second through groove; 23. Slot. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0017] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0018] like Figures 1 to 5 As shown, a reducer for a cooling tower includes a reducer body 1. A mounting plate 2 is fixedly connected to the bottom of the reducer body 1. A limiting plate 3 for limiting the mounting plate 2 is provided at the bottom of the mounting plate 2. Mounting blocks 4 are fixedly connected to both sides of the limiting plate 3. An installation mechanism is provided at the bottom of the mounting plate 2. The installation mechanism includes an insert block 5 fixedly connected to the bottom of the mounting plate 2. A limiting groove 6 is opened at the top of the limiting plate 3. The insert block 5 and the limiting groove 6 are both polygonal in shape. The outer wall of the insert block 5 and the inner wall of the limiting groove 6 are adapted to each other.

[0019] Further, see attached document. Figures 1 to 5As shown, the bottom of the insert block 5 has a first groove 7. A gear 8 is rotatably connected to the inner wall of the first groove 7. A rotating disk 9 is fixedly connected to the bottom of the gear 8. Push blocks 10 are evenly distributed at equal intervals and fixedly connected to the outer wall of the rotating disk 9. The bottom of the insert block 5 has multiple evenly distributed second grooves 11 around the center point of the first groove 7. A plug 12 is provided inside the second groove 11. The two ends of the plug 12 pass through the interior of the first groove 7 and the outer wall of the insert block 5, respectively. A first spring 13 is sleeved on the outer wall of the plug 12. One end of the first spring 13 is fixedly connected to the inner wall of the second groove 11, and the other end of the first spring 13 is fixedly connected to the outer wall of the plug 12. The end of the plug 12 near the rotating disk 9 is fixed. The inner wall of the limiting groove 6 is provided with multiple equally spaced slots 23 connected to the arc-shaped block 14; the outer wall of the gear 8 is meshed with a rack 15, which is slidably connected to the inner wall of the first groove 7; a push rod 16 is fixedly connected to the side wall of the rack 15, and the push rod 16 is L-shaped; a support block 17 is fixedly connected to the top of the mounting plate 2 near the side wall of the reducer body 1; a clamping plate 18 passes through the side wall of the support block 17; a first through groove 19 is provided on the side wall of the clamping plate 18; a second spring 20 is fixedly connected to the inner wall of the first through groove 19; the other end of the second spring 20 is fixedly connected to the side wall of the support block 17; a second through groove 22 is provided on the top of the mounting plate 2; the bottom of the second through groove 22 is connected to the inner wall of the first groove 7. The push rod 16 is connected, and the top end of the push rod 16 passes through the second through groove 22 and extends to the top of the mounting plate 2. First, the limiting plate 3 is installed in the cooling tower by using the mounting block 4 and bolts. Then, the bottom mounting plate 2 of the reducer body 1 is aligned with the preset installation position, so that the insert 5 fixedly connected to the bottom of the mounting plate 2 is inserted into the limiting groove 6 opened at the top of the limiting plate 3. Since both the insert 5 and the limiting groove 6 are polygonal structures, they can achieve preliminary anti-rotation positioning after insertion, ensuring the accurate orientation of the mounting plate 2. Subsequently, the operator holds the gripping rod 21 set at the top of the mounting plate 2 and pushes it to drive the push rod 16 to slide along the direction of the second through groove 22. The push rod 16 is fixedly connected to the rack 15. During the sliding process of the push rod 16, the rack 15 is in the first groove. The top of 7 slides and meshes with the gear 8 rotatably connected to the inner wall, driving the gear 8 to rotate. The surfaces of gear 8 and rack 15 are coated with an anti-corrosion coating to form an effective protective layer, preventing the meshing surfaces of gear 8 and rack 15 from rusting and jamming due to a humid environment. The bottom of gear 8 is connected to a rotating disk 9, so the rotation of gear 8 drives the rotating disk 9 to rotate synchronously. Multiple push blocks 10 are fixedly connected at equal intervals on the outer wall of the rotating disk 9. When the rotating disk 9 rotates, it drives the multiple push blocks 10 to rotate synchronously. The push block 10 has an arc-shaped structure, and its outer wall contacts the outer wall of the corresponding arc-shaped block 14. Under the rotation of the push block 10, the arc-shaped block 14 is pushed outward, thereby pushing the plug 12 connected to it to slide in the second groove 11.During the sliding process, one end of the plug 12 extends into the slot 23 provided on the inner wall of the limiting groove 6. The position of the slot 23 is consistent with the sliding direction of the plug 12 and is on the same horizontal plane, achieving further precise limiting and stable fixation of the mounting plate 2. A first spring 13 is sleeved on the outer wall of the plug 12. During the pushing process of the plug 12, the first spring 13 is compressed and stores energy, thereby providing a rebound force to keep the plug 12 stably retracting back into the second groove 11 when unloading. During the above operation, the push rod 16 will continue to slide towards the clamping plate 18. When the push rod 16 moves to the vicinity of the clamping plate 18 inserted in the support block 17, the front end of the push rod 16 will contact the inclined surface of the end of the clamping plate 18 that is close to it. The inclined surface and the push rod 16 form inclined interference. When the push rod 16 continues to advance, it will squeeze the clamping plate 18, thereby compressing the second spring 20 in the first through groove 19, causing the clamping plate 18 to move.

[0020] When push rod 16 has completely passed the ramp and reaches one side of clamping plate 18, the second spring 20 releases its spring force, pushing clamping plate 18 back to its original position and tightly against the other side of push rod 16, thus achieving the limiting and locking of push rod 16. This structure effectively prevents the loosening of components such as rotating disk 9, push block 10, and bolt 12 caused by the reverse rotation of gear 8, thereby ensuring the reliable installation of mounting plate 2 and reducer body 1. The installation mechanism has significant advantages of compact structure and efficient operation. By setting the polygonal mating structure of bolt 5 and limiting groove 6, the mounting plate 2 achieves rapid centering and anti-rotation positioning in the initial installation stage. Push rod 16 drives rack 15 to mesh with gear 8, thereby driving rotating disk 9 to rotate. Gear 8 and rack 15 should use the same module, with side clearance controlled between 0.05 and 0.1 mm, and center distance error not exceeding ±0.05 mm to ensure smooth transmission and no jamming. The first spring 13 external to bolt 12 is recommended to have a stiffness of approximately 2 N / mm. The spring ensures that it stores energy when under force and can quickly reset after unloading; the second spring 20 inside the clamping plate 18 has a stiffness of about 1N / mm, ensuring that the clamping plate 18 can reset in time and achieve limit locking after the push rod 16 passes through, driving multiple push blocks 10 to apply force to the arc block 14, realizing the insertion of the plug 12 along the direction of the slot 23, and completing the limit fixing of the mounting plate 2. The clamping plate 18 and the inclined interference structure are set at the end of the push rod 16, which, together with the first through slot 19 and the second spring 20, form an automatic locking device, which can automatically limit and prevent loosening after the push rod 16 completes its action, preventing the reducer body 1 from loosening due to reverse loosening. This means that only the limit plate 3 needs to be bolted during installation. When disassembling the reducer body 1, the entire mechanism can be installed by operating a single gripping rod 21, which effectively simplifies the installation process of the reducer body 1, significantly reduces the intensity of manual labor, and improves the installation efficiency and operational reliability of the equipment. It is suitable for cooling tower conditions that require frequent maintenance.

[0021] Further, see attached document. Figure 5As shown, a gripping rod 21 for pushing the push rod 16 is fixedly connected to the top of the push rod 16. The outer wall of the gripping rod 21 is provided with anti-slip grooves. The anti-slip grooves on the outer wall can prevent operational errors in wet or oily environments and improve the stability of use.

[0022] Further, see attached document. Figure 4 As shown, one side of the push block 10 is provided with an arc-shaped structure. The outer wall of the push block 10 is in contact with the outer wall of the arc-shaped block 14. When the rotating disk 9 rotates, it will drive the push block 10 on the outer wall to rotate. The rotation of the push block 10 will push the arc-shaped block 14 and the plug 12 to move towards the slot 23. One end of the plug 12 will extend into the slot 23 and fix the mounting plate 2. This will enable multiple push blocks 10 to correspond to multiple arc blocks 14, so that the plug 12 can achieve multi-point synchronous locking and improve the overall fixing stability.

[0023] Further, see attached document. Figure 5 As shown, one end of the clamping plate 18 has an inclined surface structure. When the push rod 16 moves to the inclined surface at one end of the clamping plate 18, it squeezes the clamping plate 18 and moves it towards one side of the support block 17. The clamping plate 18 will compress the second spring 20 in the first through groove 19. When one end of the push rod 16 moves to the other side of the clamping plate 18, the second spring 20 will release its spring force to push the clamping plate 18 towards the push rod 16 and abut against one side of the push rod 16. This serves to limit the installation of the push rod 16 and prevent external vibration or external force from pushing the push rod 16, causing the gear 8 to rotate and the rotating disk 9 to rotate, thereby causing the push block 10 to be unable to move. To ensure the continuous and effective operation of the plug 12, and to improve the wear resistance and fit stability of the plug 12 and slot 23 during long-term use, the plug 12 is made of high-strength alloy steel, and its outer surface is nitrided or carburized and quenched to enhance surface hardness and wear resistance. The inner wall of the limiting groove 6 where the slot 23 is located can be made of stainless steel, and its surface is treated with hard chrome plating to reduce frictional resistance and prevent jamming. The plug 12 and slot 23 adopt a transition fit structure to ensure smooth insertion and removal and reliable positioning, thereby improving the service life and stability of the plug 12 and slot 23.

[0024] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0025] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A reducer for cooling towers, comprising a reducer body (1), characterized in that: The bottom of the reducer body (1) is fixedly connected to a mounting plate (2). The bottom of the mounting plate (2) is provided with a limiting plate (3) for limiting the mounting plate (2). The two sides of the limiting plate (3) are respectively fixedly connected to mounting blocks (4). The bottom of the mounting plate (2) is provided with a mounting mechanism. The mounting mechanism includes an insert (5) fixedly connected to the bottom of the mounting plate (2). The top of the limiting plate (3) is provided with a limiting groove (6). The insert (5) and the limiting groove (6) are both polygonal in shape. The outer wall of the insert (5) and the inner wall of the limiting groove (6) are adapted to each other.

2. A reducer for cooling towers according to claim 1, characterized in that The bottom of the insert (5) is provided with a first groove (7), the inner wall of the first groove (7) is rotatably connected with a gear (8), the bottom of the gear (8) is fixedly connected with a rotating disk (9), the outer wall of the rotating disk (9) is fixedly connected with push blocks (10) evenly distributed at equal intervals, the bottom of the insert (5) is provided with a plurality of second grooves (11) evenly distributed at equal intervals around the center point of the first groove (7), the second groove (11) is provided with a plug (12), the two ends of the plug (12) are respectively inserted into the interior of the first groove (7) and the outer wall of the insert (5), the outer wall of the plug (12) is fitted with a first spring (13), one end of the first spring (13) is fixedly connected to the inner wall of the second groove (11), the other end of the first spring (13) is fixedly connected to the outer wall of the plug (12), the end of the plug (12) near the rotating disk (9) is fixedly connected with an arc-shaped block (14), the inner wall of the limiting groove (6) is provided with a plurality of slots (23) evenly distributed at equal intervals.

3. A reducer for cooling towers according to claim 2, characterized in that The outer wall of the gear (8) is meshed with a rack (15), the rack (15) is slidably connected to the inner wall of the first groove (7), the side wall of the rack (15) is fixedly connected to a push rod (16), the push rod (16) is L-shaped, the top of the mounting plate (2) is fixedly connected to the side wall of the reducer body (1), the side wall of the support block (17) is provided with a clamping plate (18), the side wall of the clamping plate (18) is provided with a first through groove (19), the inner wall of the first through groove (19) is fixedly connected to a second spring (20), the other end of the second spring (20) is fixedly connected to the side wall of the support block (17).

4. A reducer for cooling towers according to claim 3, characterized in that The top of the mounting plate (2) is provided with a second through groove (22), the bottom of the second through groove (22) is connected to the inner wall of the first groove (7), and the top of the push rod (16) passes through the second through groove (22) and extends to the top of the mounting plate (2).

5. A reducer for cooling towers according to claim 4, characterized in that The top end of the push rod (16) is fixedly connected to a gripping rod (21) for pushing the push rod (16), and the outer wall of the gripping rod (21) is provided with anti-slip grooves.

6. A reducer for cooling towers according to claim 2, characterized in that The push block (10) has an arc-shaped structure on one side. The outer wall of the push block (10) and the outer wall of the arc block (14) are in contact. When the rotating disk (9) rotates, it will drive the push block (10) on the outer wall to rotate. The rotation of the push block (10) will push the arc block (14) and the plug (12) to move towards the slot (23). One end of the plug (12) will extend into the slot (23) and fix the mounting plate (2).

7. A reducer for cooling towers according to claim 5, characterized in that One end of the card plate (18) is provided with an inclined surface structure. When the push rod (16) moves to the inclined surface of one end of the card plate (18), it squeezes the card plate (18) to move towards one side of the support block (17). The card plate (18) will compress the second spring (20) in the first through groove (19). When one end of the push rod (16) moves to the other side of the card plate (18), the second spring (20) will release the spring force to push the card plate (18) to move towards the push rod (16) and abut against one side of the push rod (16).

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