Stable ventilation fan transmission structure
By using a robust ventilation fan transmission structure, and by employing pulleys and a dehumidification device, the problem of motor damage was solved, thereby improving motor insulation and ensuring stable equipment operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-03-10
AI Technical Summary
The existing ventilation fan uses a direct drive, which causes alkaline condensate to enter the motor through the fan drive shaft during the exhaust of water vapor from the washing pool. This results in a reduction in the motor's insulation level and makes it prone to damage.
It adopts a stable ventilation fan transmission structure, which connects the motor pulley and the fan pulley with a belt. Combined with a dehumidifying fan and a dehumidifying baffle, it prevents moisture from entering the motor. The tension of the transmission belt is adjusted by adjusting the gears and adjusting the screw to ensure stable transmission.
It effectively prevents moisture from entering the motor, avoiding motor damage, improves the motor's insulation level, saves resources, and improves work efficiency and equipment usability.
Smart Images
Figure CN223984588U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to fan drive technical field, concretely is a kind of stable type ventilation fan drive structure. BACKGROUND
[0002] Metal plate surface is usually with oil dirt, the alkaline solution in alkali washing tank can be decomposed and removed by saponification, emulsification and other effects, so that the plate surface is clean, and provides good surface conditions for subsequent processing, oxidation scale is formed on the surface of metal during processing, and alkali washing can make the oxidation scale react with alkali solution, so that it is dropped, which helps to improve the surface quality of plate and the effect of subsequent treatment, ventilation of alkali washing tank is very important, which helps to discharge harmful gas generated during alkali washing process, and ensures the safety of working environment and personnel health.
[0003] In the original alkali washing tank of the existing pull-bend bending straightening machine, ventilation is generally carried out by a ventilation fan, and the transmission mode of the ventilation fan adopts direct connection transmission, which has the problem that the alkali-containing condensed water enters the motor through the fan drive shaft during the water vapor emptying process of the washing tank, reduces the insulation level of the motor, and the motor is easily damaged. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a stable type ventilation fan drive structure to solve the problem that the transmission mode of the ventilation fan adopts direct connection transmission, which causes the alkali-containing condensed water to enter the motor through the fan drive shaft during the water vapor emptying process of the washing tank, reduces the insulation level of the motor, and the motor is easily damaged.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a stable type ventilation fan drive structure, comprising a mounting bracket, an opening is formed on the upper surface of the mounting bracket, and a maintenance door plate is mounted on the inner wall of the opening of the mounting bracket, a motor pulley is embeddedly mounted on the front surface of one end of the mounting bracket, a fan pulley is embeddedly mounted on the rear surface of the other end of the mounting bracket, a limiting baffle is fixedly connected to the inner wall of the cavity of the mounting bracket, an opening is formed on the surface of the limiting baffle, and two auxiliary pressing plates are mounted on the inner wall of the opening of the limiting baffle, a first roller is connected to one end of the auxiliary pressing plate, two adjusting plates are mounted on the inner wall of the opening of the limiting baffle, a second roller is arranged on one end of the adjusting plate, an adjusting gear is embeddedly mounted on the rear surface of the mounting bracket, an adjusting screw is mounted between the two adjusting plates, and a linkage gear is fixedly connected to the outer surface of the adjusting screw.
[0006] Preferably, the mounting bracket and the maintenance door plate are rotatably connected, the mounting bracket and the motor pulley are rotatably connected, and the fan pulley and the mounting bracket are rotatably connected.
[0007] By adopting the above technical solution, the rotating connection between the mounting bracket and the maintenance door panel facilitates maintenance and repair, while the motor pulley and fan pulley help prevent moisture from flowing in.
[0008] Preferably, a transmission belt is installed between the outer surface of the motor pulley and the outer surface of the fan pulley, and the transmission belt passes through the opening on the surface of the limiting baffle.
[0009] Using the above technical solution, the transmission belt drives the motor pulley and the fan pulley for transmission, and the transmission belt is limited by the limit baffle.
[0010] Preferably, the auxiliary pressure plate and the limiting baffle are slidably connected, and a spring is connected between the auxiliary pressure plate and the limiting baffle. The auxiliary pressure plate and the first roller are rotatably connected, and the first roller abuts against the outer surface of the transmission belt.
[0011] Using the above technical solution, the spring on the surface of the auxiliary pressure plate pushes the auxiliary pressure plate to drive the first roller to abut against the outer surface of the transmission belt.
[0012] Preferably, the adjusting support plate and the limiting baffle are slidably connected, the adjusting support plate and the second roller are rotatably connected, the adjusting gear and the mounting bracket are rotatably connected, and the adjusting gear and the linkage gear are meshing.
[0013] By adopting the above technical solution, the adjusting gear is rotated, which in turn drives the linkage gear to rotate.
[0014] Preferably, the threads on the outer surfaces of the two ends of the adjusting screw are in opposite directions, and the adjusting screw is threadedly connected to the two adjusting support plates respectively.
[0015] Using the above technical solution, the rotation of the linkage gear drives the adjustment screw to rotate, so that the adjustment screw drives the adjustment support plate to slide through the threads at both ends.
[0016] Preferably, a dehumidifying fan is fixedly connected to the rear surface of the mounting bracket, and a dehumidifying baffle is fixedly connected to the inner wall of the cavity of the mounting bracket. A paper-like fiber desiccant made of plant fiber is fixed to the surface of the dehumidifying baffle.
[0017] By adopting the above technical solution, the airflow inside the device is controlled by a dehumidifying fan, which facilitates the adsorption of moisture by the dryer on the surface of the dehumidifying baffle.
[0018] Compared with the prior art, the beneficial effects of this utility model are: the stable ventilation fan transmission structure:
[0019] 1. The device is equipped with a motor pulley and a fan pulley. When the device is working, the connection between the fan and the motor is changed so that the motor is connected to the fan via a belt and pulley, with the two pulleys connecting the fan and the motor respectively. This completely eliminates the possibility of motor damage caused by moisture, saves resources, and improves work efficiency.
[0020] 2. An adjusting gear and an adjusting screw are provided. When the device is working, rotating the adjusting gear drives the linkage gear and the adjusting screw to rotate. This allows the threads at both ends of the adjusting screw to drive the two adjusting support plates to slide towards each other. The second roller on the surface of the adjusting support plate supports the inner surface of the transmission belt, which facilitates the expansion of the transmission belt for tensioning and increases the convenience of adjusting the transmission belt.
[0021] 3. Equipped with a dehumidifying fan and a dehumidifying baffle, the device draws in and exhausts internal air during operation, effectively reducing the internal moisture content. At the same time, the fiber desiccant on the surface of the dehumidifying baffle further absorbs and dehumidifies the moisture, effectively preventing moisture from damaging the internal components. Attached Figure Description
[0022] Figure 1 This is a three-dimensional structural diagram of the connection between the mounting bracket and the maintenance door panel of this utility model;
[0023] Figure 2 This is a three-dimensional structural diagram of the connection between the mounting bracket and the fan pulley of this utility model;
[0024] Figure 3 This is a three-dimensional structural diagram of the connection between the mounting bracket and the limiting baffle of this utility model;
[0025] Figure 4 This is a three-dimensional structural diagram of the connection between the mounting bracket and the adjusting gear of this utility model;
[0026] Figure 5 This is a three-dimensional structural diagram of the connection between the auxiliary pressure plate and the first roller of this utility model;
[0027] Figure 6 This is a three-dimensional structural diagram of the connection between the adjusting screw and the linkage gear of this utility model.
[0028] In the diagram: 1. Mounting bracket; 2. Maintenance door panel; 3. Motor pulley; 4. Fan pulley; 5. Limit baffle; 6. Auxiliary pressure plate; 7. First roller; 8. Adjusting support plate; 9. Second roller; 10. Adjusting gear; 11. Adjusting screw; 12. Linkage gear; 13. Dehumidifying fan; 14. Dehumidifying baffle; 15. Drive belt. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] Please see Figures 1-6 This utility model provides a technical solution: a stable ventilation fan transmission structure, including a mounting bracket 1, a maintenance door panel 2, a motor pulley 3, a fan pulley 4, a limiting baffle 5, an auxiliary pressure plate 6, a first roller 7, an adjusting support plate 8, a second roller 9, an adjusting gear 10, an adjusting screw 11, a linkage gear 12, a dehumidifying fan 13, a dehumidifying baffle 14, and a transmission belt 15. The mounting bracket 1 has an opening on its upper surface, and the maintenance door panel 2 is installed on the inner wall of the opening of the mounting bracket 1. A motor housing is embedded in the front surface of one end of the mounting bracket 1. The fan pulley 4 is embedded in the rear surface of the other end of the mounting bracket 1. The mounting bracket 1 is rotatably connected to the maintenance door panel 2, the mounting bracket 1 is rotatably connected to the motor pulley 3, and the fan pulley 4 is rotatably connected to the mounting bracket 1. When using this device, the motor pulley 3 is first fixedly connected to the motor shaft, the fan pulley 4 is fixedly connected to the shaft of the ventilation fan, and finally the transmission belt 15 is installed on the outer surface of the motor pulley 3 and the fan pulley 4, so that the transmission belt 15 passes through the opening on the surface of the limiting baffle 5.
[0031] A limit baffle 5 is fixed to the inner wall of the cavity of the mounting bracket 1. The surface of the limit baffle 5 is provided with an opening, and two auxiliary pressure plates 6 are installed on the inner wall of the opening of the limit baffle 5. A transmission belt 15 is installed between the outer surface of the motor pulley 3 and the outer surface of the fan pulley 4. The transmission belt 15 passes through the opening on the surface of the limit baffle 5. The auxiliary pressure plate 6 and the limit baffle 5 are slidably connected, and a spring is connected between the auxiliary pressure plate 6 and the limit baffle 5. The auxiliary pressure plate 6 and the first roller 7 are rotatably connected. The first roller 7 abuts against the outer surface of the transmission belt 15. The spring on the surface of the auxiliary pressure plate 6 pushes it to slide, so that the auxiliary pressure plate 6 drives the first roller 7 to abut against the outer surface of the transmission belt 15, which increases the stability of the transmission belt 15.
[0032] One end of the auxiliary pressure plate 6 is connected to a first roller 7. Two adjusting support plates 8 are installed on the inner wall of the opening of the limiting baffle 5. A second roller 9 is provided at one end of the adjusting support plate 8. The adjusting support plate 8 and the limiting baffle 5 are slidably connected. The adjusting support plate 8 and the second roller 9 are rotatably connected. The adjusting gear 10 and the mounting bracket 1 are rotatably connected. The adjusting gear 10 and the linkage gear 12 are meshed. By rotating the adjusting gear 10, the linkage gear 12 and the adjusting screw 11 are driven to rotate. The threads on the outer surfaces of the two ends of the adjusting screw 11 drive the two adjusting support plates 8 to slide in opposite directions. This allows the adjusting support plates 8 to support the inner surface of the transmission belt 15 through the second roller 9, which facilitates the tension adjustment of the transmission belt 15 and increases the practicality of the device.
[0033] An adjusting gear 10 is embedded in the rear surface of the mounting bracket 1. An adjusting screw 11 is installed between the two adjusting support plates 8. A linkage gear 12 is fixedly connected to the outer surface of the adjusting screw 11. The threads on the outer surfaces of the two ends of the adjusting screw 11 are in opposite directions, and the adjusting screw 11 is threadedly connected to the two adjusting support plates 8 respectively. A dehumidifying fan 13 is fixedly connected to the rear surface of the mounting bracket 1. A dehumidifying baffle 14 is fixedly connected to the inner wall of the cavity of the mounting bracket 1. A paper-like fiber desiccant made of plant fiber is fixed on the surface of the dehumidifying baffle 14. During operation, the dehumidifying fan 13 draws air from inside the device to reduce the content of humid air. At the same time, the dehumidifying baffle 14 inside the device adsorbs moisture through the fiber desiccant on its surface to prevent moisture from damaging the internal components of the device.
[0034] Working principle: When using this stable ventilation fan transmission structure, the motor pulley 3 and the fan pulley 4 are installed through the mounting bracket 1, which facilitates the transmission belt 15 to drive the motor pulley 3 and the fan pulley 4 for transmission. Maintenance and repair are carried out through the maintenance door panel 2. The transmission belt 15 passes through the opening on the surface of the limiting baffle 5. The transmission belt 15 is stabilized by pressing it with the auxiliary pressure plate 6 and the first roller 7. Rotating the adjusting gear 10 drives the linkage gear 12 and the adjusting screw 11 to rotate, which facilitates the adjustment screw 11 to drive the two adjusting support plates 8 to slide. The adjusting support plates 8 support the transmission belt 15 for tension adjustment through the second roller 9. The dehumidifying fan 13 and the dehumidifying baffle 14 remove moisture, increasing the overall practicality.
[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A stable ventilation fan transmission structure, comprising a mounting bracket (1), the upper surface of which is provided with an opening, and a maintenance door plate (2) is mounted on the inner wall of the opening of the mounting bracket (1), characterized in that: The front surface of one end of the mounting bracket (1) is embeddedly installed with a motor pulley (3), the rear surface of the other end of the mounting bracket (1) is embeddedly installed with a fan pulley (4), the inner wall of the cavity of the mounting bracket (1) is fixedly installed with a limiting baffle (5), the surface of the limiting baffle (5) is provided with an opening, and the inner wall of the opening of the limiting baffle (5) is installed with two auxiliary pressing plates (6), one end of the auxiliary pressing plate (6) is connected with a first roller (7), the inner wall of the opening of the limiting baffle (5) is installed with two adjusting branch plates (8), one end of the adjusting branch plate (8) is provided with a second roller (9), the rear surface of the mounting bracket (1) is embeddedly installed with an adjusting gear (10), the adjusting screw (11) is installed between the two adjusting branch plates (8), and the outer surface of the adjusting screw (11) is fixedly connected with a linkage gear (12).
2. The robust ventilator fan drive structure of claim 1, wherein: The mounting bracket (1) is rotatably connected with the maintenance door plate (2), the mounting bracket (1) is rotatably connected with the motor pulley (3), and the fan pulley (4) is rotatably connected with the mounting bracket (1).
3. The drive structure of claim 1, wherein: The outer surface of the motor pulley (3) and the outer surface of the fan pulley (4) are installed with a transmission belt (15), and the transmission belt (15) penetrates the opening in the surface of the limiting baffle (5).
4. The robust ventilator fan drive structure of claim 1, wherein: The auxiliary pressing plate (6) is slidably connected with the limiting baffle (5), a spring is connected between the auxiliary pressing plate (6) and the limiting baffle (5), the auxiliary pressing plate (6) is rotatably connected with the first roller (7), and the first roller (7) abuts against the outer surface of the transmission belt (15).
5. The drive structure of claim 1, wherein: The adjusting branch plate (8) is slidably connected with the limiting baffle (5), the adjusting branch plate (8) is rotatably connected with the second roller (9), the adjusting gear (10) is rotatably connected with the mounting bracket (1), and the adjusting gear (10) is meshingly connected with the linkage gear (12).
6. The robust ventilator fan drive structure of claim 1, wherein: The threads on the outer surfaces of the two ends of the adjusting screw (11) are opposite in direction, and the adjusting screw (11) is threadedly connected with the two adjusting branch plates (8) through threads.
7. The drive structure of claim 1, wherein: The rear surface of the mounting bracket (1) is fixedly connected with a dehumidification fan (13), the inner wall of the cavity of the mounting bracket (1) is fixedly connected with a dehumidification baffle (14), and the surface of the dehumidification baffle (14) is fixedly connected with a paper sheet-shaped fiber drying agent made of plant fiber as a base material.