Brush drive

Abstract

The utility model provides a kind of brush transmission device, including rack, driven roller, brush roller, driving motor and sprocket drive mechanism, cloth can drive driven roller rotation;Brush roller is parallelly arranged with driven roller and is arranged at the outside of cloth, the brush of brush roller is contacted with cloth, brush roller is connected with driven roller by sprocket drive mechanism, driven roller drives brush roller rotation by sprocket drive mechanism, sprocket drive mechanism is equipped with tensioning mechanism, driving motor is installed at the end of brush roller, brush roller can rotate around its roller shaft by driving motor drive, the rotational speed of brush roller and cloth is not identical.The utility model drives driven roller rotation by cloth, driven roller drives brush roller rotation by sprocket drive mechanism, transmission structure is simple, it is convenient to run, service life is greatly improved;Brush roller is driven to rotate by driving motor, can solve the problem that friction may be insufficient in starting stage, fully guarantee the stability of operation.

Description

Technical Field

[0001] This utility model relates to the field of cleaning device technology, specifically to a brush transmission device. Background Technology

[0002] The brush rollers of the softening scraper in the dipping machine are currently mostly driven by motors. However, because they are mainly used on fabric production lines, they have been running continuously without interruption, which causes the motors to overheat. This is especially true in hot workshops and in the high-temperature environment of summer, which leads to a sharp reduction in the lifespan of the motors. Once they fail to work properly, the product quality will decline and the products will become scrap.

[0003] Chinese patent CN208377788U discloses a roller brush cleaning device installed on a belt conveyor. The device includes a support, an adjusting mechanism, a bearing unit, and a roller brush. The support, adjusting mechanism, and bearing unit are arranged in pairs and positioned opposite each other on the outer side of the conveyor belt edge. The roller brush is located below the conveyor belt. The roller brush includes a roller shaft and protruding bristles on the roller shaft. Both ends of the roller shaft are rotatably supported by the bearing unit. The adjusting mechanism connects the support and the bearing unit and is used to adjust the tightness of the brush bristles against the working surface of the conveyor belt.

[0004] However, existing roller brush cleaning devices, although using a conveyor belt to drive the brush roller, have a difference between the fabric and the conveyor belt, making it difficult to directly drive the brush roller. Therefore, there is a need for a brush drive device that can both utilize the power of the fabric movement to drive the brush roller and actively provide power to rotate the brush roller, avoiding unexpected situations, preventing downtime due to malfunctions, and preventing a decline in product quality. Utility Model Content

[0005] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a brush transmission device.

[0006] According to the present invention, a brush transmission device includes: a frame, a driven roller, a brush roller, a drive motor, and a sprocket transmission mechanism. The driven roller and the brush roller are both mounted on the frame. The fabric on the frame is wrapped around the driven roller and there is friction between the two. The fabric can drive the driven roller to rotate. The brush roller and the driven roller are arranged parallel to each other and on the outside of the fabric. The brush of the brush roller is in contact with the fabric. The brush roller and the driven roller are connected by a sprocket transmission mechanism. The driven roller drives the brush roller to rotate through the sprocket transmission mechanism. A tensioning mechanism is installed on the sprocket transmission mechanism. The drive motor is installed at the end of the brush roller. The brush roller can rotate around its roller axis by the drive motor. The speed of the brush roller and the speed of the fabric are different.

[0007] Preferably, the outer diameters of the brush roller and the driven roller are different.

[0008] Preferably, the sprocket drive mechanism includes a chain and gears, and both the brush roller and the driven roller have gears installed at their ends, with different numbers of teeth on the gears.

[0009] Preferably, the tensioning mechanism includes a connecting rod and a tensioning gear. The tensioning gear is mounted on the chain. One end of the connecting rod is connected to the tensioning gear, and the other end is movably mounted on the frame. The tensioning gear tensions the chain through the connecting rod.

[0010] Preferably, both ends of the brush roller are detachably mounted on the frame via mounting bases, the ends of the brush roller are mounted on the upper part of the mounting base via bearings, and the lower part of the mounting base is provided with strip-shaped mounting holes. The mounting base is installed close to or away from the driven roller via the strip-shaped mounting holes and bolts.

[0011] Preferably, the drive motor includes a variable frequency motor, and the drive motor has a working state and a non-working state. When the fabric cannot drive the driven roller to rotate, the drive motor is in the working state.

[0012] Preferably, the drive motor is provided with a meshing clutch, and the drive motor switches between working and non-working states by engaging and disengaging the gears of the meshing clutch.

[0013] Preferably, multiple brush rollers are provided, and the multiple brush rollers are connected to the driven roller through one or more sprocket transmission mechanisms.

[0014] Preferably, the plurality of brush rollers are respectively disposed on both sides of the fabric.

[0015] Preferably, the driven roller is connected to a drive device, and the drive device and the drive motor do not work simultaneously.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This invention utilizes a fabric-driven driven roller, which in turn drives a brush roller via a sprocket transmission mechanism. This creates relative motion between the fabric and the brush bristles on the brush roller, effectively brushing away lint. The transmission structure is simple and easy to operate. The brush roller will not stop due to external factors, essentially achieving the same lifespan as the equipment, significantly extending its service life and preventing downtime or product quality degradation. The brush roller is driven by a drive motor, a simple driving method that quickly solves the problem of insufficient friction during startup. When the drive motor is not needed, it can follow the brush roller without interference, ensuring operational stability. Attached Figure Description

[0017] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram illustrating the structure of the brush transmission device, which is the main feature of this utility model. Figure 2 This is a schematic diagram illustrating the main structure of the sprocket transmission mechanism of this utility model; Figure 3 This is a schematic diagram illustrating the principle of the sprocket drive mechanism, which is the main feature of this utility model. Figure 4 This is a schematic diagram of the main structure of the sprocket drive mechanism of this utility model.

[0018] Reference numerals: 1. Frame; 2. Driven roller; 3. Brush roller; 4. Drive motor; 5. Sprocket transmission mechanism; 6. Tensioning mechanism; 7. Mounting base; 8. Fabric. Detailed Implementation

[0019] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0020] like Figure 1-4 As shown, a brush transmission device according to this utility model includes: a frame 1, a driven roller 2, a brush roller 3, a drive motor 4, and a sprocket transmission mechanism 5. The driven roller 2 and the brush roller 3 are both mounted on the frame 1. The fabric 8 on the frame 1 is wound around the driven roller 2 and there is friction between the two. The fabric 8 can drive the driven roller 2 to rotate. The brush roller 3 is arranged parallel to the driven roller 2 and is located outside the fabric 8. The brush of the brush roller 3 is in contact with the fabric 8. The brush roller 3 and the driven roller 2 are connected through the sprocket transmission mechanism 5. The driven roller 2 drives the brush roller 3 to rotate through the sprocket transmission mechanism 5. A tensioning mechanism 6 is installed on the sprocket transmission mechanism 5. The drive motor 4 is installed at the end of the brush roller 3. The brush roller 3 can rotate around its roller axis through the drive motor 4. The rotation speed of the brush roller 3 and the fabric 8 are different.

[0021] This application is mainly used on the brush roller of the softening doctor blade in a glue-dipping machine. The driven roller 2 is rotated by the fabric 8. The driven roller 2 typically has a power of 2200W, which is used to power the brush roller 3, causing it to rotate. This power is far greater than the power required by the brush roller 3. Considering that the force driving the brush roller 3 is not large (less than 120W), its main function is to brush off the bristles from the fabric 8. Since the fabric 8 is constantly moving, as long as there is relative movement between the fabric 8 and the brushes on the brush roller 3, the bristles can be brushed off. Furthermore, considering that the friction between the fabric 8 and the driven roller 2 may be insufficient during the startup phase, a drive motor 4 is provided to assist the brush roller 3 in starting. If the sprocket transmission mechanism 5 malfunctions, normal operation can still be maintained.

[0022] The outer diameters of the roller shafts of brush roller 3 and driven roller 2 are different. The sprocket drive mechanism 5 includes a chain and gears. Gears are installed at the ends of the roller shafts of both brush roller 3 and driven roller 2, and the number of teeth on each gear is different. For different application environments, the outer diameters of the roller shafts of brush roller 3 and driven roller 2, or the number of teeth on their gears, can be adjusted. Different tooth numbers mean different speed ratios, thereby changing the speed difference between brush roller 3 and fabric 8, achieving a better brushing effect. The sprocket drive mechanism 5 of this application can also use other structures that allow for smooth rotation, such as synchronous belts or V-belts.

[0023] Both ends of the brush roller 3 are detachably mounted on the frame 1 via mounting bases 7. The ends of the brush roller 3 are mounted on the upper part of the mounting base 7 via bearings. The lower part of the mounting base 7 is provided with strip-shaped mounting holes. The mounting base 7 is installed close to or away from the driven roller 2 through the strip-shaped mounting holes and bolts. In practical applications, when dealing with fabrics 8 of different thicknesses and brushes of different sizes and hardnesses, the position of the mounting base 7 can be adjusted to move the brush roller 3 to a suitable position, and then it can be fixed in place with bolts, thereby adjusting the distance between the brush roller 3 and the fabric 8.

[0024] The tensioning mechanism 6 includes a connecting rod and a tensioning gear. The tensioning gear is mounted on the chain. One end of the connecting rod is connected to the tensioning gear, and the other end is movably mounted on the frame 1. The tensioning gear tensions the chain through the connecting rod. After the distance between the brush roller 3 and the fabric 8 is adjusted, the tensioning mechanism 6 can be adjusted to ensure that the entire chain is in a taut state, thereby ensuring smooth operation.

[0025] The drive motor 4 includes a variable frequency motor and has operating and non-operating states. When the fabric 8 cannot drive the driven roller 2 to rotate, the drive motor 4 is in the operating state. The drive motor 4 is small in size, easy to install, and requires less power. When the drive motor 4 needs to run, it can be driven directly. When the drive motor 4 stops working, it still rotates with the brush roller 3. Because it is in an open-circuit state, the required resistance is small, which simplifies the structure and reduces costs. Furthermore, the drive motor 4 can also adjust the speed difference between itself and the fabric 8 by adjusting the speed of the brush roller 3, thereby achieving a better brushing effect.

[0026] In other specific embodiments, the drive motor 4 may be equipped with a meshing clutch. The drive motor 4 switches between working and non-working states by engaging and disengaging the gears of the meshing clutch. The meshing clutch achieves the purpose of disengagement by moving the gears laterally, which is very direct, simple and reliable.

[0027] In other specific embodiments, both sides of the fabric 8 need to be brushed. To ensure the brushing effect, multiple brush rollers 3 can be provided, with each brush roller 3 disposed on one or more sides of the fabric 8. The multiple brush rollers 3 are connected to the driven roller 2 via one or more sprocket transmission mechanisms 5.

[0028] In other specific embodiments, the driven roller 2 is connected to a drive device, which does not operate simultaneously with the drive motor 4. Furthermore, to ensure sufficient power, the driven roller 2 can be replaced with a power roller.

[0029] Furthermore, to ensure service life, its uninterrupted operating life can exceed 20 years, and the selected specifications often have a safety factor of more than 10. To ensure lubrication effect, long-life drip lubrication is also required, which is maintenance-free and only needs to be lubricated during the major overhaul every 5 years.

[0030] This application utilizes a fabric 8 to drive a driven roller 2, which in turn drives a brush roller 3 via a sprocket transmission mechanism 5. This creates relative movement between the fabric 8 and the bristles on the brush roller 3, effectively brushing away the bristles. The transmission structure is simple and easy to operate. The brush roller 3 will not stop operating due to external factors, essentially achieving the same lifespan as the equipment, significantly extending its service life and preventing downtime or product quality degradation. Furthermore, to address the potential issue of insufficient friction during startup, a drive motor 4 drives the brush roller 3. This driving method is simple; when not in use, the drive motor 4 can follow the brush roller 3 without interference, ensuring operational stability.

[0031] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0032] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A brush transmission device, characterized in that, include: The frame (1), driven roller (2), brush roller (3), drive motor (4) and sprocket transmission mechanism (5) are mounted on the frame (1). The fabric (8) on the frame (1) is wound around the driven roller (2) and there is friction between them. The fabric (8) can drive the driven roller (2) to rotate. The brush roller (3) is arranged parallel to the driven roller (2) and is located on the outside of the fabric (8). The brush of the brush roller (3) is in contact with the fabric (8). The brush roller (3) and the driven roller (2) are connected by a sprocket transmission mechanism (5). The driven roller (2) drives the brush roller (3) to rotate through the sprocket transmission mechanism (5). A tensioning mechanism (6) is installed on the sprocket transmission mechanism (5). The drive motor (4) is installed at the end of the brush roller (3). The brush roller (3) is driven by the drive motor (4) to rotate around its roller axis. The rotation speed of the brush roller (3) and the fabric (8) are not the same.

2. The brush transmission device as described in claim 1, characterized in that, The outer diameters of the brush roller (3) and the driven roller (2) are different.

3. The brush transmission device as described in claim 1, characterized in that, The sprocket drive mechanism (5) includes a chain and gears. Both the brush roller (3) and the driven roller (2) have gears installed at their ends, and the number of teeth on the two gears is different.

4. The brush transmission device as described in claim 1, characterized in that, The tensioning mechanism (6) includes a connecting rod and a tensioning gear. The tensioning gear is mounted on the chain. One end of the connecting rod is connected to the tensioning gear, and the other end is movably mounted on the frame (1). The tensioning gear tensions the chain through the connecting rod.

5. The brush transmission device as described in claim 1, characterized in that, The two ends of the brush roller (3) are detachably mounted on the frame (1) via mounting base (7). The ends of the brush roller (3) are mounted on the upper part of the mounting base (7) via bearings. The lower part of the mounting base (7) is provided with strip-shaped mounting holes. The mounting base (7) is mounted close to or away from the driven roller (2) via the strip-shaped mounting holes and bolts.

6. The brush transmission device as described in claim 1, characterized in that, The drive motor (4) includes a variable frequency motor and has a working state and a non-working state. When the fabric (8) cannot drive the driven roller (2) to rotate, the drive motor (4) is in the working state.

7. The brush transmission device as described in claim 6, characterized in that, The drive motor (4) is equipped with a meshing clutch, and the drive motor (4) switches between working and non-working states by engaging and disengaging the gears of the meshing clutch.

8. The brush transmission device as described in claim 1, characterized in that, Multiple brush rollers (3) are provided, and the multiple brush rollers (3) are connected to the driven roller (2) through one or more sprocket transmission mechanisms (5).

9. The brush transmission device as described in claim 8, characterized in that, Multiple brush rollers (3) are respectively arranged on both sides of the fabric (8).

10. The brush transmission device as described in claim 1, characterized in that, The driven roller (2) is connected to a drive device, which does not work simultaneously with the drive motor (4).

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