A brush roll structure and method of changing a brush roll

Abstract

The application discloses a kind of brush roll structure and roll changing method, wherein brush roll includes, the roll body, the both ends of roll body have transmission side shaft head and operating side shaft head respectively, transmission side shaft head is connected with the output end of transmission equipment by transmission assembly;Transmission assembly includes key, spline shaft and connecting flange;One end of spline shaft is connected with transmission side shaft head by key, and the other end is connected with connecting flange by spline, connecting flange is connected with the output end of transmission equipment by flange type coupling;And connecting flange is provided with sleeve that covers transmission assembly and transmission side shaft head;And sleeve rotates with connecting flange;Roll body is rotatably arranged in brush washing rack by two mounting seats;Two mounting seats are arranged on the outer surface of sleeve and operating side shaft head respectively.The dismounting process is convenient, especially for the roller system that needs to be replaced frequently, which can effectively save the roll changing time and improve the overall production efficiency.

Description

Technical Field

[0001] This invention relates to the field of cleaning machinery technology, specifically to a brush roller structure and roller replacement method. Background Technology

[0002] A scrubbing roller is a versatile cleaning structure consisting of a central roller body with bristles, rotatably connected to a scrubbing device at both ends. During the scrubbing process, the scrubbing roller rotates continuously, with its bristles directly contacting the items to be cleaned, inevitably leading to wear and deformation of the bristles. For example, in the production of cold-rolled stainless steel, scrubbing rollers are used to remove residual iron oxide scale from the surface of the strip steel. During scrubbing, the brushes on the scrubbing roller are in direct contact with the strip steel, which sometimes travels at high speeds. The rubber coating of the scrubbing roller and the brushes gradually wear down during operation, directly impacting the overall production line's productivity, product quality, and production costs. To ensure effective cleaning, the scrubbing roller needs to be replaced periodically; the method and timing of roller replacement directly affect the overall machine's efficiency and production output.

[0003] Currently, the replacement of commonly used scrubbing rollers requires disassembling the transmission components (such as transmission gears and transmission belts) to remove the scrubbing roller. Some scrubbing roller replacements even require the introduction of an additional roller changing device. Therefore, the replacement process consumes a lot of time and manpower, and the roller changing device also brings additional cost burden. The long time required to replace scrubbing rollers greatly affects production efficiency.

[0004] There are also readily replaceable rollers in the prior art. For example, patent application number (CN201420748215.7) discloses a cast iron floor roller with a readily replaceable roller. Slip rings are provided at both ends of the roller to clamp the roller and the mounting base. Although the transmission components do not need to be removed during disassembly, the clips at both ends need to be removed, making the disassembly process still complicated. In addition, both sides need to be installed at the same time during installation, requiring multiple operations and making installation difficult.

[0005] Therefore, how to improve the structure of the brush roller and increase its replacement efficiency is an urgent problem to be solved. Summary of the Invention

[0006] The purpose of this application is to solve the problem of inconvenient replacement of brush rollers in the prior art. Therefore, the present invention provides a brush roller structure and a roller replacement method. The brush roller is connected to the connecting flange by a spline shaft. A sleeve that can wrap around the brush roller is provided on the outside of the connecting flange, so that the brush roller can be stably inserted or pulled out, realizing the transmission connection and disconnection between the spline shaft and the connecting flange. When disassembling, it is only necessary to disconnect the connection at the operating end of the brush roller, and the brush roller can be pulled out from the connecting flange from the operating end.

[0007] To achieve the above objectives, in a first aspect, the present invention provides an easily replaceable scrubbing roller, the scrubbing roller being disposed on a scrubbing machine frame, the scrubbing roller comprising a roller body, and the roller body having a transmission-side shaft head and an operation-side shaft head at both ends respectively;

[0008] The transmission side shaft head is connected to the output end of the transmission equipment through a transmission assembly;

[0009] The transmission assembly includes a flat key, a splined shaft, and a connecting flange;

[0010] The transmission side shaft head is connected to one end of the splined shaft via a key, and the other end of the splined shaft is connected to the connecting flange via a spline. The connecting flange is connected to the output end of the transmission equipment via a flange coupling.

[0011] The outer periphery of the connecting flange is provided with a sleeve that wraps around the transmission assembly and the transmission side shaft head; and the sleeve rotates with the connecting flange.

[0012] The roller body is rotatably mounted on the washing machine frame via two mounting seats; the two mounting seats are respectively located on the outer surface of the sleeve and the outer surface of the operating side shaft head.

[0013] Using the above technical solution, the connecting flange undertakes the transmission function and is connected to the output end of the transmission equipment. The sleeve and the connecting flange are fixed as a whole and are rotatably mounted on the mounting base. Therefore, when the output end of the transmission equipment rotates, the connecting flange and the sleeve drive the entire brushing roller to rotate simultaneously on the mounting base.

[0014] The drive-side shaft head is connected to the connecting flange via a splined shaft, transmitting torque to the washing roller through the spline. Since the mounting base supporting the washing roller is rotatably mounted on the sleeve, in actual operation, it is not necessary to disassemble the mounting base at the drive-side shaft head. Only the mounting base of the operating-side shaft head needs to be disassembled, after which the entire washing roller can be pulled out from the sleeve, terminating the drive connection between the splined shaft and the connecting flange, thus achieving the disassembly of the washing roller. During installation, it is only necessary to insert the drive-side shaft head into the sleeve, align the splined shaft with the spline of the connecting flange, and then install the mounting base of the operating-side shaft head to complete the installation of the washing roller.

[0015] In some embodiments of the first aspect, the mounting base includes a bearing, a bearing housing, a spacer block, and a connecting block. The bearing on the sleeve is wrapped around the outer surface of the sleeve, and the bearing at the operating side shaft head is wrapped around the outer surface of the operating side shaft head. The bearing housing is sleeved on the outer periphery of the bearing to support the bearing.

[0016] The outer ring surface of the bearing housing has a threaded hole, one end of the connecting block is disposed on the brushing frame, and the other end is connected to the bearing housing by bolts;

[0017] The spacer block is disposed between the connecting block and the bearing seat, and has a through hole for the bolt to pass through;

[0018] Furthermore, a transparent cover is fixed to the side of the bearing housing by bolts, and the transparent cover covers the bearing from the side.

[0019] Using the above technical solution, the bearing enables the brush roller to rotate freely. The bearing is connected to the brush washing machine frame by the bearing seat and the connecting block, thus fixing the brush roller. In addition, a spacer block is provided between the bearing seat and the connecting block, and the installation position of the brush roller can be adjusted by adjusting the thickness of the spacer block.

[0020] In addition, the transparent cover can protect the bearing from the side and also prevent the bearing from sliding out of the bearing housing from both sides.

[0021] In some embodiments of the first aspect, the connecting block has two parts, both of which are inverted "L" shapes, and their lower ends are connected to the spacer block by bolts, and an installation gap is formed between the upper part of the connecting block and the spacer block to facilitate installation.

[0022] By adopting the above technical solution, the installation gaps make it easier to install the connecting blocks and the brushing frame.

[0023] In some embodiments of the first aspect, the sleeve includes a first sleeve and a second sleeve; one side of the first sleeve is bolted to the connecting flange, and the other side extends longitudinally and wraps around the connection position between the transmission side shaft head and the spline shaft, and the mounting base is disposed on the outer surface of the first sleeve;

[0024] A second sleeve is also provided on the other side of the first sleeve by bolts. The second sleeve extends longitudinally and covers part of the operating side shaft head.

[0025] With the above technical solution, the bearing is sleeved outside the first sleeve, and the first sleeve supports the brush roller. Therefore, the first sleeve covers the connection position between the transmission side shaft head and the spline shaft, so that the first sleeve can support the transmission side shaft head and the spline shaft at the same time, reducing the vertical force between the two. The second sleeve extends a certain length and covers part of the operating side shaft head, which can limit the radial movement of the operating side shaft head during rotation, making the axial connection between the operating side shaft head and the spline shaft more horizontal and preventing radial offset.

[0026] In some embodiments of the first aspect, the end of the transmission-side shaft head is provided with an annular notch.

[0027] The connecting flange includes an inner ring and an outer ring fixed to the outer surface of the inner ring;

[0028] The inner ring is disposed within the annular recess, the first sleeve covers the outer side of the inner ring, and the outer ring has a threaded hole so that the connecting flange is connected to the first sleeve by bolts.

[0029] By adopting the above technical solution, the first sleeve can also provide support for the connecting flange. Similarly, it can also reduce the vertical force between the two and prevent radial displacement between the connecting flange and the spline shaft.

[0030] In some embodiments of the first aspect, one end of the splined shaft wraps around the transmission side shaft head, the end of the transmission side shaft head has a shaft keyway, and the inner side of the splined shaft has a matching hub keyway; the two are connected by a flat key to ensure consistent axial movement and facilitate disassembly and assembly.

[0031] A spline groove is provided on the outer side of the other end of the spline shaft, and a matching spline groove is opened on the inner side of the connecting flange.

[0032] Using the above technical solution, torque is transmitted through flat keys and splines, making connection and disassembly convenient.

[0033] In some embodiments of the first aspect, an operating side pressure plate is also included, which is disposed on the brushing frame and axially presses against the end of the operating side shaft head.

[0034] By adopting the above technical solution, it is possible to prevent the transmission connection between the transmission side shaft head and the spline shaft or the spline shaft and the connecting flange from falling off during rotation.

[0035] In a second aspect, the present invention also provides a method for replacing a scrubbing roller, using an easily replaceable scrubbing roller as described above, the replacement steps including:

[0036] S1: Remove the mounting bracket at the operating side shaft head;

[0037] S2: Pull the transmission side shaft head and the splined shaft out of the sleeve along the axial direction;

[0038] S3: Connect the new washing roller to the splined shaft via a flat key, insert the drive side shaft head connected to the splined shaft into the sleeve, and align the splines.

[0039] By adopting the above technical solution, quick replacement of the washing rollers is achieved, thus improving production efficiency.

[0040] In summary, compared with the prior art, the beneficial effects of the present invention are as follows: when replacing the washing roller, it is not necessary to disassemble the transmission equipment such as the coupling on the transmission side. The transmission side of the washing roller is changed to a split structure. When replacing, it is only necessary to loosen the connection on the operating side to pull the washing roller body out from the operating side to complete the disassembly. This avoids the installation errors and safety hazards caused by disassembling the transmission equipment. The disassembly process is convenient. Especially for roller systems that need to be replaced frequently, it can effectively save roller replacement time and improve the overall production efficiency.

[0041] Other features and corresponding beneficial effects of this application will be described in the latter part of the specification, and it should be understood that at least some of the beneficial effects will become obvious from the description in this application. Attached Figure Description

[0042] The invention, its features, shape, and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference numerals denote like parts throughout the drawings. The drawings are not drawn to scale; their focus is on illustrating the gist of the invention.

[0043] Figure 1 This is a partial cross-sectional view of a brush roller according to an embodiment of the present invention;

[0044] Figure 2 This is an embodiment of the present invention. Figure 1 A magnified view of a portion of the image;

[0045] Figure 3 This is a schematic diagram of the connection between the connecting block and the spacer block according to an embodiment of the present invention.

[0046] Explanation of reference numerals in the attached figures:

[0047] 1. Operating side shaft head; 2. Roller body; 3. Transmission side shaft head; 4. Splined shaft; 5. Connecting flange; 6. First sleeve; 7. Second sleeve; 8. Flat key; 9. Bearing; 10. Bearing seat; 11. Spacer block; 12. Connecting block; 13. Through cover; 14. Operating side pressure plate. Detailed Implementation

[0048] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and for 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. Additionally, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0050] Among them, the flange-type coupling, bearings and other structures are conventional existing structures that can be purchased on the market.

[0051] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0052] Example

[0053] Please see Figures 1-3 This embodiment provides a brushing roller structure. The brushing roller is set on a brushing machine frame. The brushing roller includes a roller body 2, and the two ends of the roller body 2 are respectively provided with a transmission side shaft head 3 and an operation side shaft head 1.

[0054] The transmission side shaft head 3 is connected to the output end of the transmission equipment through a transmission assembly;

[0055] The transmission assembly includes a flat key 8, a splined shaft 4, and a connecting flange 5.

[0056] One end of the splined shaft 4 is connected to the drive-side shaft head 3 via a flat key 8, and the other end is connected to the connecting flange 5 via a spline. The splined shaft 4 and the connecting flange 5 are fixed in axial position by spline engagement. When the splined shaft 4 moves axially, it drives the roller body 2 to move synchronously. The connecting flange 5 is connected to the output end of the transmission equipment via a flange-type coupling (not shown in the attached figure).

[0057] A sleeve is provided on the connecting flange 5 to cover the transmission assembly and the transmission side shaft head 3; and the sleeve rotates with the connecting flange 5.

[0058] The roller body 2 is rotatably mounted on the washing machine frame via two mounting seats; the two mounting seats are respectively located on the outer surface of the sleeve and the outer surface of the operating side shaft head 1.

[0059] It should be noted that in existing technologies, scrubbing rollers are generally connected to transmission equipment via belts or gears. When disassembling the scrubbing roller, the connecting components need to be removed. For example, replacing existing scrubbing rollers requires removing the coupling, mounting base, and other structures, increasing replacement time. Moreover, transmission components generally require professional personnel to install them using specific methods. Insufficient installation may reduce the overall service life, easily lead to malfunctions, and even pose safety hazards.

[0060] This invention employs a split design. The washing roller and splined shaft 4 form one unit, while the connecting flange 5, sleeve, and drive-side mounting base form the other unit. The two units are connected by a spline. When disassembling the washing roller, the splined shaft 4 is directly pulled out of the sleeve, thus terminating the transmission connection between the splined shaft 4 and the connecting flange 5, completing the disassembly of the drive side. Disassembly of the transmission components is unnecessary, making disassembly quick and easy. During installation, the drive-side shaft head 3 is inserted into the sleeve, and the washing roller, connecting flange 5, and sleeve form a single unit that rotates together. To prevent this unit from detaching from the sleeve during rotation, an operating-side pressure plate 14 is provided at the operating-side shaft head 1 to axially press against the end of the operating-side shaft head 1.

[0061] In this embodiment, the washing roller is connected to the washing machine frame through two mounting seats. One mounting seat is located at the operating side shaft head 1, and the other mounting seat is located on the sleeve. When the washing roller is connected to the connecting flange 5 through the spline shaft 4, the washing roller, the connecting flange 5 and the sleeve form a whole, which is supported at both ends by the mounting seats, and this whole rotates on the mounting seats.

[0062] Specifically, the connection between the washing roller and the splined shaft 4 is as follows: a keyway is opened at the end of the transmission side shaft head 3, and a hub keyway is opened on the inner side of the splined shaft 4. The two are connected by a flat key 8.

[0063] Specifically, the splined shaft 4 and the connecting flange 5 are connected as follows: a spline groove is provided on the outer side of the other end of the splined shaft 4, and a matching spline groove is opened on the inner side of the connecting flange 5. A longitudinal spline groove is opened on the inner cylindrical surface of the connecting flange 5, the size of which matches the spline groove on the outer cylindrical surface of the splined shaft 4. During installation and disassembly, it is only necessary to insert and pull the splined shaft 4 along the axial direction of the connecting flange 5.

[0064] Specifically, the sleeve includes a first sleeve 6 and a second sleeve 7; the first sleeve 6 and the second sleeve 7 are connected by bolts. One side of the first sleeve 6 is bolted to the connecting flange 5, and the other side extends longitudinally and wraps around the connection position between the transmission side shaft head 3 and the splined shaft 4. The end of the transmission side shaft head 3 is provided with an annular notch, and a portion of the connecting flange 5 is disposed within the annular notch, allowing the first sleeve 6 to be simultaneously fitted onto the outside of the connecting flange 5, thus simultaneously supporting the splined shaft 4 and the connecting flange 5. A preferred implementation is that the connecting flange 5 includes an inner ring and an outer ring fixed to the outer surface of the inner ring, and the outer ring is wider than the first sleeve 6. Therefore, multiple axially arranged bolts are used to fix the first sleeve 6 and the connecting flange 5. This reduces the radial width, making rotation easier, and the axially arranged bolts can better withstand axial forces.

[0065] One side of the second sleeve 7 is bolted to the first sleeve 6, and the other side extends longitudinally and covers part of the operating side shaft head 1, reducing the radial movement between the operating side shaft head 1, spline shaft 4 and connecting flange during rotation.

[0066] Specifically, the mounting base includes a bearing 9, a bearing housing 10, a spacer block 11, and a connecting block 12. The bearing 9 is wrapped around the outer surface of the sleeve or the operating side shaft head 1. The bearing housing 10 is fitted around the outer circumference of the bearing 9 to support it. The outer ring surface of the bearing housing 10 has threaded holes. One end of the connecting block 12 is fixed to the washing machine frame, and the other end is connected to the bearing housing 10 by bolts. Preferably, the connecting block 12 has two parts, both inverted "L" shapes. The lower ends of both parts are bolted to the spacer block 11, and an installation gap is formed between the upper part of both parts and the spacer block 11, allowing for easy connection between the connecting block 12 and the washing machine frame. The spacer block 11 is positioned between the connecting block 12 and the bearing housing 10 and has through holes for bolts to pass through.

[0067] One of the bearings 9 is wrapped around the outside of the second sleeve 7, so that the bearing 9 can simultaneously support the transmission side shaft head 3 and the splined shaft 4 through the second sleeve 7. The connecting block 12 is set above the bearing seat 10 to fix the brush roller from above, so that the brush roller can press down to clean. Specifically, a through cover 13 is fixed to the side of the bearing seat 10 by bolts, and the through cover 13 covers the bearing 9 from the side.

[0068] This embodiment also provides a method for replacing the scrubbing roller, using the easily replaceable scrubbing roller described above. The replacement steps include:

[0069] S1: Remove the mounting seat at the operating side shaft head 1; S2: Pull the transmission side shaft head 3 and the splined shaft 4 out of the sleeve along the axial direction; S3: Connect the new brushing roller to the splined shaft 4 through the flat key 8, insert the transmission side shaft head 3 connected to the splined shaft 4 into the sleeve, and align the splined shaft 4 and the spline of the connecting flange 5.

[0070] For initial installation of the scrubbing roller, using the roller body as a base, first connect the drive-side shaft head to the splined shaft via a key connection. Then, fit the connecting flange onto the splined shaft and fix it in place using a spline connection. Next, use bolts to secure the first sleeve 6 and the second sleeve 7 to enclose the shaft head. Then, install the bearing 9, bearing seat 10, through cover 13, spacer block 11, and connecting block 12 in sequence. Finally, fix the entire assembled component to the scrubbing frame using the connecting block. When replacing the scrubbing roller, simply loosen the connection on the operating side to remove the scrubbing roller body from the operating side for disassembly.

[0071] In this embodiment, the specific replacement process of the scrubbing roller is as follows: remove the bolts on the connecting block 12 on the main shaft on the operating side, remove the connecting block 12 and the spacer block 11, so that the connection between the bearing seat 10 and the cleaning frame is disengaged, loosen the operating side pressure plate 14 installed on the scrubbing frame, and then pull out the entire scrubbing roller; the specific installation process is as follows: install the splined shaft 4 at the shaft head 3 on the transmission side, insert the entire scrubbing roller with the splined shaft 4 installed into the sleeve, so that the splined shaft 4 meshes with the transmission flange, install the connecting block 12 and the spacer block 11 on the operating side, and finally install the operating side pressure plate 14.

[0072] The preferred embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and the devices and structures not described in detail should be understood as being implemented in a conventional manner in the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention using the methods and techniques disclosed above, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the present invention. This does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the present invention's technical solutions still fall within the protection scope of the present invention.

Claims

1. A scrubbing roller, wherein the scrubbing roller is disposed on a scrubbing machine frame, characterized in that, The scrubbing roller includes a roller body (2), and the two ends of the roller body (2) are respectively provided with a transmission side shaft head (3) and an operation side shaft head (1). The transmission side shaft head (3) is connected to the output end of the transmission equipment through the transmission assembly; The transmission assembly includes a flat key (8), a splined shaft (4), and a connecting flange (5); The transmission side shaft head (3) is connected to one end of the spline shaft (4) via the flat key (8), and the other end of the spline shaft (4) is connected to the connecting flange (5) via the spline. The connecting flange (5) is connected to the output end of the transmission equipment via a flange coupling. The outer periphery of the connecting flange (5) is provided with a sleeve that wraps around the transmission assembly and the transmission side shaft head (3); and the sleeve rotates with the connecting flange (5); The roller body (2) is rotatably mounted on the washing machine frame via two mounting seats; the two mounting seats are respectively located on the outer surface of the sleeve and the outer surface of the operating side shaft head (1).

2. A washing roller according to claim 1, characterized in that, The mounting base includes a bearing (9), a bearing seat (10), a spacer block (11), and a connecting block (12). The bearing (9) on the sleeve is wrapped around the outer surface of the sleeve. The bearing (9) at the operating side shaft head (1) is wrapped around the outer surface of the operating side shaft head (1). The bearing seat (10) is sleeved on the outer periphery of the bearing (9) to support the bearing (9). The outer ring surface of the bearing housing (10) is provided with a threaded hole, and one end of the connecting block (12) is provided on the brushing frame, and the other end is connected to the bearing housing (10) by bolts; The spacer block (11) is disposed between the connecting block (12) and the bearing seat (10) and has a through hole for the bolt to pass through; Furthermore, a cover (13) is fixed to the side of the bearing housing (10) by bolts, and the cover (13) covers the bearing (9) from the side.

3. A washing roller according to claim 2, characterized in that, The connecting block (12) has two parts, both of which are inverted "L" shaped. The lower ends of both parts are connected to the spacer block (11) by bolts, and the upper part of both parts forms an installation gap with the spacer block (11) to facilitate installation.

4. A washing roller according to claim 1, characterized in that, The sleeve includes a first sleeve (6) and a second sleeve (7); one side of the first sleeve (6) is bolted to the connecting flange (5), and the other side extends longitudinally and wraps around the connection position between the transmission side shaft head (3) and the spline shaft (4); the mounting seat is disposed on the outer surface of the first sleeve (6). A second sleeve (7) is also provided on the other side of the first sleeve (6) by bolts. The second sleeve (7) extends longitudinally and covers part of the operating side shaft head (1).

5. A washing roller according to claim 4, characterized in that, The end of the transmission side shaft head (3) is provided with an annular notch. The connecting flange (5) includes an inner ring and an outer ring fixed to the outer surface of the inner ring; The inner ring is disposed within the annular recess, the first sleeve (6) covers the outer side of the inner ring, and the outer ring is provided with a threaded hole so that the connecting flange (5) is connected to the first sleeve (6) by bolts.

6. A washing roller according to claim 1, characterized in that, One end of the spline shaft (4) wraps around the transmission side shaft head (3), the end of the transmission side shaft head (3) has a shaft keyway, and the inner side of the spline shaft (4) has a matching hub keyway. The two are connected by a flat key (8). A spline groove is provided on the outer side of the other end of the spline shaft (4), and a matching spline groove is opened on the inner side of the connecting flange (5).

7. A washing roller according to claim 1, characterized in that, It also includes an operating side pressure plate (14), which is disposed on the brushing frame and axially presses against the end of the operating side shaft head (1).

8. A method for replacing a scrubbing roller, characterized in that, The replacement step, using the brush roller as described in any one of claims 1 to 7, includes: S1: Remove the mounting bracket at the operating side shaft head (1); S2: Pull the transmission side shaft head (3) and the spline shaft (4) out of the sleeve along the axial direction; S3: Connect the new scrubbing roller to the splined shaft (4) via the flat key (8), insert the drive side shaft head (3) connected to the splined shaft (4) into the sleeve, and align the splines of the splined shaft (4) and the connecting flange (5).

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