A roller seat structure and wide-width coating roller device

Abstract

The present application relates to a roller seat structure and a wide-width coating roller device. The roller seat structure includes a roller seat body, on which a bearing hole and a plurality of screw holes are provided. The bottom end of the screw hole is connected with a strip slot, and the screw hole is connected to the strip slot in a T-shape. The strip slot extends straight and vertically penetrates the front plane and the rear plane of the roller seat body. The wide-width coating roller device includes a coating roller, a roller seat 1 and a roller seat 2. Both the roller seat 1 and the roller seat 2 adopt the roller seat structure. The active end shaft and the driven end shaft of the coating roller are respectively installed on the roller seat 1 and the roller seat 2. The roller seat 1 and the roller seat 2 are used to connect with the frame. The roller seat structure of the present application can block the transmission of the screw tension to the bearing hole by adding a strip slot, effectively preventing the deformation of the bearing hole, thereby improving the overall installation accuracy of the coating roller. The wide-width coating roller device uses the roller seat structure to reduce the interference of the disturbance increase on the coating roller runout accuracy, so as to make the coating roller runout accuracy lower.

Description

Technical Field

[0001] The present application relates to the technical field of coating rollers, and in particular to a roller seat structure and a wide-width coating roller device. Background Art

[0002] With the increase in market demand for wide-width coating, the roller surface length of the coating roller is also increasing. At present, the runout accuracy of wide-width coating rollers with a roller surface length of 1600-2200mm is mostly around 0.0015-0.003mm. The increase in roller surface length leads to an increase in the disturbance in the vertical direction and coating direction of the roller surface caused by the gravity of the coating roller itself, resulting in the coating roller runout accuracy cannot be lowered to meet market demand. It is now necessary to make the coating roller have a higher installation accuracy to reduce the interference of the increased disturbance on the runout accuracy.

[0003] The coating roller seat is the component for installing the ends of the coating roller. After the two ends of the coating roller are installed on the coating roller seat, the coating roller seat is directly screwed to the frame of the coating roller installation position on the frame. When the screws are tightened, the tension generated by the screws will cause slight deformation of the bearing hole on the coating roller seat, affecting the bearing installation accuracy and then affecting the overall installation accuracy of the coating roller. Utility Model Content

[0004] Based on this, the present application provides a roller seat structure that can effectively prevent the bearing hole on the coating roller seat from being deformed due to the screw tension. The present application also provides a wide-width coating roller device, which uses the roller seat structure to install the coating roller, which can improve the installation accuracy of the coating roller and reduce the interference of the disturbance increase on the jumping accuracy of the coating roller.

[0005] The technical solution adopted in this application is as follows:

[0006] A roller seat structure includes a roller seat body, the roller seat body having a front plane, a rear plane and a peripheral side surface, the front plane and the rear plane correspond to each other along the thickness direction of the roller seat body, the peripheral side surface connects the edge of the front plane and the edge of the rear plane, and the roller seat body is provided with a bearing hole and a plurality of screw holes, the bearing hole vertically penetrates the front plane and the rear plane, the screw holes are distributed on the peripheral side surface and sunk into the roller seat body, and a strip slot is connected at the bottom end of the screw hole, the screw hole is connected to the strip slot in a T-shape, and the strip slot extends in a straight line and vertically penetrates the front plane and the rear plane.

[0007] As a further scheme of the roller seat structure, the front plane and the rear plane are square planes, so the circumferential side surface includes an upper plane, a left plane, a lower plane and a right plane which are vertically connected in sequence, the bearing hole is arranged at the center of the roller seat body, the multiple screw holes include an upper screw hole, a lower screw hole one, a lower screw hole two, a lower screw hole three and a lower screw hole four, the upper screw hole is arranged on the upper plane and directly opposite to the hole center of the bearing hole, the lower screw hole one and the lower screw hole two are symmetrically arranged on the lower plane, the lower screw hole three and the lower screw hole four are symmetrically arranged on the left plane and the right plane, the lower screw hole three and the lower screw hole four are located on the lower side of the bearing hole in the vertical direction and are higher than the lower screw hole one or the lower screw hole two and are sunk into the bottom end of the roller seat body.

[0008] The roller seat structure of the present application, by adding a strip slot hole at the bottom end of the screw hole, can block the screw tension after the screw is installed from being transmitted to the bearing hole, effectively preventing the deformation of the bearing hole, thereby improving the installation accuracy of the bearing part, and then improving the overall installation accuracy of the coating roller.

[0009] A wide-width coating roller device comprises a coating roller, a roller seat 1, a roller seat 2, a driving side mounting assembly and a driven side mounting assembly, wherein the roller seat 1 and the roller seat 2 both adopt the roller seat structure as described above, the roller seat 1 and the roller seat 2 are used to be connected to the coating roller mounting frame on the frame, the coating roller has an active end shaft and a driven end shaft, the active end shaft is mounted on the roller seat 1 through the driving side mounting assembly, and the driven end shaft is mounted on the roller seat 2 through the driven side mounting assembly.

[0010] The wide-width coating roller device of the present application uses the roller seat structure to install the coating roller, which can improve the installation accuracy of the coating roller, thereby reducing the interference of increased disturbance on the jumping accuracy of the coating roller, so that the jumping accuracy of the wide-width coating roller is lower to meet market demand.

[0011] As a further solution of the wide-width coating roller device, the driving side mounting assembly includes a bearing component 1, a locking nut 1, a locking nut 2, an inner ring spacer 1, an outer ring spacer 1, an inner bearing cover 1 and an outer end cover, the inner bearing cover 1 is locked on the front plane of the roller seat 1, the outer end cover is locked on the rear plane of the roller seat 1, the active end shaft passes through the inner bearing cover 1 and extends into the bearing hole of the roller seat 1, the bearing component 1 is arranged in the bearing hole of the roller seat 1, the inner ring of the bearing component 1 is connected to the active end shaft and the outer ring is connected to the roller seat 1, the inner ring spacer 1 and the locking nut 1 are sequentially arranged on the active end shaft to lock the inner ring of the bearing component 1, the locking nut 2 is arranged on the outside of the locking nut 1 to prevent the locking nut 1 from loosening, the outer ring spacer is set on the inner ring spacer 1, and the inner and outer sides of the outer ring spacer 1 respectively abut against the outer ring of the bearing component 1 and the outer end cover to lock the outer ring of the bearing component 1.

[0012] As a further solution of the wide-width coating roller device, the driven side mounting assembly includes a bearing component 2, a locking nut 3, a locking nut 4, an inner ring spacer 2, an outer ring spacer 2, an inner bearing cover 2, and an outer bearing cover. The inner bearing cover 2 is locked on the front plane of the roller seat 2, and the outer bearing cover is locked on the rear plane of the roller seat 2. The driven end shaft passes through the inner bearing cover 2 and extends into the bearing hole of the roller seat 2. The bearing component 2 is arranged in the bearing hole of the roller seat 2. The inner ring of the bearing component 2 is connected to the driven end shaft and the outer ring is connected to the roller seat 2. The inner ring spacer 2 and the locking nut 3 are sequentially arranged on the driven end shaft to lock the inner ring of the bearing component 2. The locking nut 4 is arranged on the outside of the locking nut 3 to prevent the locking nut 3 from loosening. The outer ring spacer 2 is integrally formed on the outer bearing cover and is sleeved on the inner ring spacer 2. The outer ring spacer 2 abuts against the outer ring of the bearing component 2 to lock the outer ring of the bearing component 2.

[0013] As a further solution of the wide-width coating roller device, the driving side mounting assembly also includes an O-ring 1 and an O-ring 2, wherein the O-ring 1 is arranged on the contact surface between the inner bearing cover 1 and the active end shaft, and the O-ring 2 is arranged on the contact surface between the inner ring spacer 1 and the outer ring spacer 1; the driven side mounting assembly also includes an O-ring 3 and an O-ring 4, wherein the O-ring 3 is arranged on the contact surface between the inner bearing cover 2 and the driven end shaft, and the O-ring 4 is arranged on the contact surface between the inner ring spacer 2 and the outer ring spacer 2.

[0014] As a further solution of the wide-width coating roller device, the first bearing component and the second bearing component each include two angular contact bearings arranged side by side.

[0015] As a further solution of the wide-width coating roller device, a driving motor is installed on the outer end cover, and the output end of the driving motor is connected to the active end shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a structural schematic diagram of the roller seat structure of an embodiment of the present application;

[0018] Figure 2 This is a schematic structural diagram of a wide-width coating roller device according to an embodiment of the present application;

[0019] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0020] Figure 4 for Figure 2 A schematic structural diagram of the inner ring spacer sleeve 1 (inner ring spacer sleeve 2) in the wide-width coating roller device shown;

[0021] Figure 5 for Figure 2 A schematic structural diagram of outer ring spacer sleeve 1 (outer ring spacer sleeve 2) in the wide-width coating roller device shown.

[0022] Description of reference numerals:

[0023] 10. Roller seat body; 11. Front plane; 12. Rear plane; 131. Upper plane; 132. Left plane; 133. Lower plane; 134. Right plane; 14. Bearing hole; 151. Upper screw hole; 152. Lower screw hole position 1; 153. Lower screw hole position 2; 154. Lower screw hole position 3; 155. Lower screw hole position 4; 16. Strip slot; 10a. Roller seat 1; 10b. Roller seat 2; 20. Coating roller; 21. Avoidance groove; 31. Bearing part 1 ; 32. Locking nut one; 33. Locking nut two; 34. Inner ring spacer one; 35. Outer ring spacer one; 36. Inner bearing cover one; 37. Outer end cover; 381. O-ring one; 382. O-ring two; 41. Bearing part two; 42. Locking nut three; 43. Locking nut four; 44. Inner ring spacer two; 45. Outer ring spacer two; 46. Inner bearing cover two; 47. Outer bearing cover; 481. O-ring three; 482. O-ring four. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below with reference to the accompanying drawings. The present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0025] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0027] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] refer to Figure 1 The present application provides a roller seat structure, which is used to install the end shaft of the coating roller 20 and is fixed to the frame by screws. The roller seat structure includes a roller seat body 10, which has a front plane 11, a rear plane 12 and a peripheral side surface 13. The front plane 11 and the rear plane 12 correspond to each other along the thickness direction of the roller seat body 10, and the peripheral side surface 13 connects the edge of the front plane 11 and the edge of the rear plane 12. A bearing hole 14 and a plurality of screw holes 15 are provided on the roller seat body 10. The bearing hole 14 vertically penetrates the front plane 11 and the rear plane 12. The screw holes 15 are distributed on the peripheral side surface 13 and sunk into the roller seat body 10. The bottom end of the screw hole 15 is connected with a strip slot 16. The screw hole 15 is connected to the strip slot 16 in a T-shape. The strip slot 16 extends straight and vertically penetrates the front plane 11 and the rear plane 12.

[0030] The roller seat structure of the present application, by adding a strip slot 16 at the bottom end of the screw hole 15, can block the screw tension after the screw is installed from being transmitted to the bearing hole 14, effectively preventing the deformation of the bearing hole 14, thereby improving the installation accuracy of the bearing component, and then improving the overall installation accuracy of the coating roller 20.

[0031] In one embodiment of the roller seat structure, the front plane 11 and the rear plane 12 are square planes, so the peripheral side surface 13 includes an upper plane 131, a left plane 132, a lower plane 133 and a right plane 134 which are vertically connected in sequence, the bearing hole 14 is arranged at the center of the roller seat body 10, and the plurality of screw holes 15 include an upper screw hole 151, a lower screw hole 1 152, a lower screw hole 2 153, a lower screw hole 3 154 and a lower screw hole 4 155, and the upper screw hole 151 is arranged On the upper plane 131 and facing the center of the bearing hole 14, the lower screw hole 152 and the lower screw hole 153 are symmetrically arranged on the lower plane 133, and the lower screw hole 3 154 and the lower screw hole 4 155 are symmetrically arranged on the left plane 132 and the right plane 134. The lower screw hole 3 154 and the lower screw hole 4 155 are located on the lower side of the bearing hole 14 in the vertical direction and are higher than the lower screw hole 1 152 or the lower screw hole 2 153 and are sunk into the bottom end of the roller seat body 10.

[0032] refer to Figure 2The present application also provides a wide-width coating roller 20 device, including a coating roller 20, a roller seat 10a, a roller seat 10b, a driving side mounting assembly and a driven side mounting assembly. The roller seat 10a and the roller seat 10b both adopt the roller seat structure. The coating roller 20 has an active end shaft and a driven end shaft. The active end shaft is installed on the roller seat 10a through the driving side mounting assembly, and the driven end shaft is installed on the roller seat 10b through the driven side mounting assembly. The roller seat 10a and the roller seat 10b are used to be connected to the coating roller 20 mounting frame on the frame through screws.

[0033] The wide-width coating roller 20 device of the present application uses a roller seat structure to install the coating roller 20, which can improve the installation accuracy of the coating roller 20, thereby reducing the interference of increased disturbance on the jumping accuracy of the coating roller 20, so that the jumping accuracy of the wide-width coating roller 20 is lower to meet market demand.

[0034] In the embodiment of the wide-width coating roller 20 device, the driving side mounting assembly includes a bearing member 31, a locking nut 32, a locking nut 33, an inner ring spacer 34, an outer ring spacer 35, an inner bearing cover 36 and an outer end cover 37. The inner bearing cover 36 is locked on the front plane 11 of the roller seat 10a, and the outer end cover 37 is locked on the rear plane 12 of the roller seat 10a. The driving end shaft passes through the inner bearing cover 36 and extends into the bearing hole 14 of the roller seat 10a. The bearing member 31 is arranged on the roller seat 10a. 0a, the inner ring of the bearing component 31 is connected to the active end shaft and the outer ring is connected to the roller seat 10a, the inner ring spacer 34 and the locking nut 32 are sequentially arranged on the active end shaft to lock the inner ring of the bearing component 31, the locking nut 33 is arranged on the outside of the locking nut 32 to prevent the locking nut 32 from loosening, the outer ring spacer 35 is sleeved on the inner ring spacer 34, and the inner and outer sides of the outer ring spacer 35 respectively abut against the outer ring of the bearing component 31 and the outer end cover 37 to lock the outer ring of the bearing component 31.

[0035] The driven side mounting assembly includes a bearing member 2 41, a locking nut 3 42, a locking nut 43, an inner ring spacer 2 44, an outer ring spacer 2 45, an inner bearing cover 2 46 and an outer bearing cover 47. The inner bearing cover 2 46 is locked on the front plane 11 of the roller seat 2 10b, and the outer bearing cover 47 is locked on the rear plane 12 of the roller seat 2 10b. The driven end shaft passes through the inner bearing cover 2 46 and extends into the bearing hole 14 of the roller seat 2 10b. The bearing member 2 41 is set at the bearing hole 14 of the roller seat 2 10b. 14, the inner ring of the bearing component 2 41 is connected to the driven end shaft and the outer ring is connected to the roller seat 2 10b, the inner ring spacer 2 44 and the locking nut 3 42 are sequentially arranged on the driven end shaft to lock the inner ring of the bearing component 2 41, the locking nut 43 is arranged on the outer side of the locking nut 3 42 to prevent the locking nut 3 42 from loosening, the outer ring spacer 2 45 is integrally formed with the outer bearing cover 47 and is sleeved on the inner ring spacer 2 44, and the outer ring spacer 2 45 abuts against the outer ring of the bearing component 2 41 to lock the outer ring of the bearing component 2 41.

[0036] The first bearing component 31 and the second bearing component 41 each include two angular contact bearings arranged side by side.

[0037] In order to seal the lubricating oil of the bearing component 31, the drive side installation assembly also includes an O-ring 381 and an O-ring 382. The O-ring 381 is arranged on the contact surface between the inner bearing cover 36 and the active end shaft, and the O-ring 382 is arranged on the contact surface between the inner ring spacer 34 and the outer ring spacer 35.

[0038] In order to seal the lubricating oil of the bearing component 2 41, the driven side mounting assembly also includes an O-ring 3 481 and an O-ring 482. The O-ring 3 481 is arranged on the contact surface between the inner bearing cover 2 46 and the driven end shaft, and the O-ring 482 is arranged on the contact surface between the inner ring spacer 2 44 and the outer ring spacer 2 45.

[0039] A driving motor is mounted on the outer end cover 37, and the output end of the driving motor is connected to the driving end shaft.

[0040] The wide-width coating roller device of the present application is more suitable for application on a coating roller 20 with roller parameter ranges of roller surface length 1600-2200 mm, roller outer diameter Φ340-Φ360, and roller wall thickness 40-60 mm.

[0041] The bearing hole 14 on the roller seat 10a is The bearing hole 14 on the roller seat 10b is Due to the rigidity and clearance characteristics of the bearing, a margin is left at the bearing hole 14 to ensure that the bearing will not be squeezed by the roller seat after installation, thereby destroying the characteristics of the bearing itself and causing unstable operation accuracy.

[0042] When bearing component 1 31 and bearing component 2 41 are installed in the corresponding bearing hole 14, the inner ring and outer ring of the bearing are respectively installed with the coating roller 20 and the roller seat using an interference fit installation process, and the expansion amount after installation is approximately 0.005-0.015mm, and the end face compression margin of the bearing is approximately 0.005-0.02mm.

[0043] refer to Figure 3 The active end shaft and the driven end shaft of the coating roller 20 have the same structure. Because the edges and corners of the fine grinding wheel are soft during processing, the processing angle will have a slight arc angle, which will eventually cause the bearing to be unevenly contacted with the contact angle when the bearing is installed. Therefore, an avoidance groove 21 is added at the contact angle at the position where the end shaft is installed with the bearing to ensure that the bearing is in flat contact with the contact angle. The groove width of the avoidance groove 21 is selected to be 2 to 5 mm.

[0044] The coating roller 20 is made of imported SCM440 steel. This alloy structural steel contains about 0.38-0.43 carbon elements, about 0.15-0.35 silicon elements, and also contains magnesium, phosphorus, sulfur, nickel, etc., each with its own content, which can bring about a relatively high compressive strength effect, and the elongation is controlled at more than 12%. This alloy structural steel has very good hardenability and good processing performance. After processing, it can achieve perfect beauty. This alloy structural steel also has very good weldability and is relatively easy to weld.

[0045] The inner ring spacer 1 34 and the inner ring spacer 2 44 have the same structural dimensions, refer to Figure 4 . The structural dimensions of the outer ring spacer 35 are referenced Figure 5 The outer ring spacer 2 45 can also be an independent part instead of being integrally formed on the outer bearing cover 47, and its structural dimensions are the same as the outer ring spacer 1 35. The spacers are all quenched and tempered, with better hardness and toughness, which can reduce deformation caused by long-term use. The single-side wall thickness of each spacer is 5 to 15 mm, and the flatness is ≤ 0.0015 mm, which ensures the high-precision flatness and high rigidity of the contact end faces of the inner and outer rings of the bearing.

[0046] The locking nut 32 and the locking nut 3 42 have the same structural dimensions, and the locking nut 2 33 and the locking nut 4 43 have the same structural dimensions. Their sizes are selected as M90~M100, and the tooth pitch is designed to be 1.5mm. This tooth shape design has moderate rigidity and is not easy to loosen, and can achieve fine adjustment of the nut clamping amount and preload force. The two end faces of the nut have also been processed with high-precision flatness and parallelism, and the roughness of the two end faces is controlled between Ra0.4~Ra3.2, which makes the fixing and contact surfaces more stable.

[0047] The installation process of the wide-width coating roller 20 device of the present application is as follows:

[0048] S1. Taking the coating roller 20 as a reference, first install the drive side installation assembly: put the inner bearing cover 36 and the O-ring 381 on the active end shaft of the coating roller 20, install the bearing component 31 through the preheating process, and then install the inner ring spacer 34 and the O-ring 2 382 to prevent the bearing component 31 from moving, and then install the locking nut 1 32 and the locking nut 2 33 in turn, and tighten them with a torque wrench.

[0049] S2. Install the driven side installation assembly: Put the inner bearing cover 2 46 and the O-ring 3 on the driven end shaft of the coating roller 20. At this time, a 0.5mm thick plate is pre-padded to ensure that there is a 0.5mm gap between the inner bearing cover 2 46 and the bearing component 2 41, and there is also a 0.5mm gap between the outer bearing cover and the bearing component 2 41 to prevent the coating roller 20 from being stuck and causing inaccurate precision. Then install the bearing component 2 41 through the preheating process, and then install the inner ring spacer 2 44 and the O-ring 4 to prevent the bearing component 2 41 from moving, and then install the locking nut 3 42 and the locking nut 4 43 in turn, and tighten them with a torque wrench.

[0050] S3. Use the preheating installation process to install the active end shaft and the driven end shaft of the coating roller 20 on the roller seat 10a and the roller seat 2 10b respectively. At this time, install the outer ring spacer 1 35 and the outer bearing cover (outer ring spacer 2 45), and then install the outer end cover 37.

[0051] S4. Fix the drive motor to the outer end cover 37 with a threaded connector.

[0052] S5. Use a lifting tool to install the assembled coating roller 20 device on the mounting frame of the rack and fix and lock it with screws.

[0053] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The above-described embodiments only express several implementation methods of the present application and should not be construed as limiting the scope of the patent application. It should be noted that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be subject to the attached claims.

Claims

1. A roller seat structure, characterized in that: The roller seat body comprises a roller seat body having a front plane, a rear plane and a peripheral side surface, the front plane and the rear plane correspond to each other along the thickness direction of the roller seat body, the peripheral side surface connects the edge of the front plane and the edge of the rear plane, a bearing hole and a plurality of screw holes are provided on the roller seat body, the bearing hole vertically penetrates the front plane and the rear plane, the screw holes are distributed on the peripheral side surface and sunk into the roller seat body, a strip slot is connected at the bottom end of the screw hole, the screw hole is connected to the strip slot in a T-shape, and the strip slot extends in a straight line and vertically penetrates the front plane and the rear plane.

2. The roller seat structure according to claim 1, characterized in that: The front plane and the rear plane are square planes, so the circumferential side surface includes an upper plane, a left plane, a lower plane and a right plane which are vertically connected in sequence, the bearing hole is arranged at the center of the roller seat body, the multiple screw holes include an upper screw hole, a lower screw hole one, a lower screw hole two, a lower screw hole three and a lower screw hole four, the upper screw hole is arranged on the upper plane and directly opposite to the hole center of the bearing hole, the lower screw hole one and the lower screw hole two are symmetrically arranged on the lower plane, the lower screw hole three and the lower screw hole four are symmetrically arranged on the left plane and the right plane, the lower screw hole three and the lower screw hole four are located on the lower side of the bearing hole in the vertical direction and are higher than the lower screw hole one or the lower screw hole two and are sunk into the bottom end of the roller seat body.

3. A wide-width coating roller device, characterized in that: It includes a coating roller, a roller seat 1, a roller seat 2, a driving side mounting assembly and a driven side mounting assembly, the roller seat 1 and the roller seat 2 both adopt the roller seat structure as described in any one of claims 1 to 2, the roller seat 1 and the roller seat 2 are used to be connected to the coating roller mounting frame on the frame, the coating roller has an active end shaft and a driven end shaft, the active end shaft is installed on the roller seat 1 through the driving side mounting assembly, and the driven end shaft is installed on the roller seat 2 through the driven side mounting assembly.

4. The wide coating roller device according to claim 3, characterized in that: The driving side mounting assembly comprises a bearing component 1, a locking nut 1, a locking nut 2, an inner ring spacer 1, an outer ring spacer 1, an inner bearing cover 1 and an outer end cover, wherein the inner bearing cover 1 is locked on the front plane of the roller seat 1, and the outer end cover is locked on the rear plane of the roller seat 1, the active end shaft passes through the inner bearing cover 1 and extends into the bearing hole of the roller seat 1, the bearing component 1 is arranged in the bearing hole of the roller seat 1, the inner ring of the bearing component 1 is connected to the active end shaft and the outer ring is connected to the roller seat 1, the inner ring spacer 1 and the locking nut 1 are sequentially arranged on the active end shaft to lock the inner ring of the bearing component 1, the locking nut 2 is arranged on the outside of the locking nut 1 to prevent the locking nut 1 from loosening, and the outer ring spacer is arranged on the inner ring spacer 1, and the inner and outer sides of the outer ring spacer 1 respectively abut against the outer ring of the bearing component 1 and the outer end cover to lock the outer ring of the bearing component 1.

5. The wide-width coating roller device according to claim 4, characterized in that: The driven side mounting assembly comprises a bearing component 2, a locking nut 3, a locking nut 4, an inner ring spacer 2, an outer ring spacer 2, an inner bearing cover 2, and an outer bearing cover. The inner bearing cover 2 is locked on the front plane of the roller seat 2, and the outer bearing cover is locked on the rear plane of the roller seat 2. The driven end shaft passes through the inner bearing cover 2 and extends into the bearing hole of the roller seat 2. The bearing component 2 is arranged in the bearing hole of the roller seat 2. The inner ring of the bearing component 2 is connected to the driven end shaft and the outer ring is connected to the roller seat 2. The inner ring spacer 2 and the locking nut 3 are sequentially arranged on the driven end shaft to lock the inner ring of the bearing component 2. The locking nut 4 is arranged on the outside of the locking nut 3 to prevent the locking nut 3 from loosening. The outer ring spacer 2 is integrally formed on the outer bearing cover and is sleeved on the inner ring spacer 2. The outer ring spacer 2 abuts against the outer ring of the bearing component 2 to lock the outer ring of the bearing component 2.

6. The wide coating roller device according to claim 5, characterized in that: The driving side installation component also includes O-ring 1 and O-ring 2, wherein O-ring 1 is arranged on the contact surface between the inner bearing cover 1 and the active end shaft, and O-ring 2 is arranged on the contact surface between the inner ring spacer 1 and the outer ring spacer 1; the driven side installation component also includes O-ring 3 and O-ring 4, wherein O-ring 3 is arranged on the contact surface between the inner bearing cover 2 and the driven end shaft, and O-ring 4 is arranged on the contact surface between the inner ring spacer 2 and the outer ring spacer 2.

7. The wide coating roller device according to claim 5 or 6, characterized in that: The first bearing component and the second bearing component both include two angular contact bearings arranged side by side.

8. The wide coating roller device according to claim 7, characterized in that: A driving motor is installed on the outer end cover, and the output end of the driving motor is connected to the active end shaft.

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