Device and method for quickly replacing self-aligning bearing of roll shaft of coating production line without strip steel stripping

Abstract

The invention relates to cold rolling coating production line equipment maintenance, in particular to a coating production line roller shaft self-aligning bearing rapid replacement device and method free of strip steel strip retreating. The device comprises a telescopic sleeve, the two ends of the telescopic sleeve are fixedly connected with supporting sleeves, the two ends of each supporting sleeve are provided with vertical rods, and the ends, away from the supporting sleeves, of the vertical rods are connected with threaded supporting feet through threads; the outer wall of the vertical rod is fixedly connected with a connecting sleeve, the connecting sleeve is connected to the outer wall of the supporting sleeve in a sleeving mode, and the interior of the connecting sleeve is connected with a first locking bolt through threads. The adjusting assembly is used for folding the device, and the adjusting assembly is connected with the supporting sleeve and the vertical rod; the dismounting and mounting assembly is used for dismounting and mounting the roller shaft and connected with the telescopic sleeve and the supporting sleeve. And by arranging the dismounting and mounting assembly, the effect of quickly dismounting and mounting the roller shaft can be achieved, workers can conveniently dismount the roller shaft from the bearing seat or mount the roller shaft into the bearing seat, and the efficiency of dismounting and mounting the roller shaft and the bearing by the workers is improved.

Description

Technical Field

[0001] This invention relates to the maintenance of equipment in cold rolling coating production lines, and more particularly to a quick replacement device and method for self-aligning bearings of rollers in coating production lines that eliminates the need for strip strip removal. Background Technology

[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support rotating mechanical parts, reduce the coefficient of friction during their movement, and ensure their rotational accuracy.

[0003] In existing technologies for replacing self-aligning bearings on coating production lines, the most common replacement method is to disassemble and hoist the entire roller to the assembly point for replacement. However, due to the special structure of some rollers, there are many obstacles in the hoisting area, making it easy to bump and scratch the roller and surrounding equipment during hoisting. This process is time-consuming and poses safety hazards. Furthermore, roller hoisting requires the removal of the steel strip in the relevant section, which prevents other work from being done, resulting in excessive downtime and affecting production line operations. Therefore, designing a quick replacement device and method for self-aligning bearings on coating production lines that eliminates the need for steel strip removal is a problem we currently need to solve. Summary of the Invention

[0004] This invention, through the design of disassembly and assembly components and the combination of standardized operating procedures, makes replacement operations more precise, mechanized, and efficient, effectively reducing safety hazards caused by misoperation, reducing downtime, and improving replacement efficiency while ensuring safety.

[0005] The technical solution of the present invention: a quick replacement device for self-aligning bearings of a coating production line without strip steel strip removal, comprising a telescopic sleeve, both ends of which are fixedly connected to support sleeves, both ends of which are provided with uprights, the end of the uprights away from the support sleeves being connected to a threaded support foot by a thread, a connecting sleeve being fixedly connected to the outer wall of the uprights, the connecting sleeve being sleeved on the outer wall of the support sleeve, and a first locking bolt being threadedly connected inside the connecting sleeve, the first locking bolt abutting against the outer wall of the support sleeve; An adjustment assembly for folding the device, the adjustment assembly being connected to the support sleeve and the upright; The assembly / disassembly component is used to assemble and disassemble the roller shaft, and is connected to the telescopic sleeve and the support sleeve.

[0006] Optionally, the adjustment assembly includes a connecting rod fixedly connected to the outer wall of the upright, the connecting rod being inserted into the inside of the support sleeve, and a slider being fixedly connected to the outer wall of the connecting rod.

[0007] Optionally, the support sleeve has a groove and a slip ring inside, the groove and the slip ring are connected, and the slider is slidably connected inside the groove and the slip ring.

[0008] Optionally, the disassembly and assembly assembly includes a telescopic rod rotatably connected inside the telescopic sleeve and the support sleeve. A rotating wheel is fixedly connected to the end of the telescopic rod. The rotating wheel is disposed on the outer wall of the support sleeve. A sliding sleeve is slidably connected to the outer wall of the rotating wheel. A spiral groove is formed on the outer wall of the sliding sleeve.

[0009] Optionally, a spiral sleeve is fitted onto the outer wall of the sliding sleeve, the spiral sleeve is slidably connected inside the spiral groove, the spiral sleeve is fixedly installed inside the telescopic sleeve, and a second locking bolt is threadedly connected to the telescopic sleeve and the spiral sleeve, the second locking bolt abutting against the outer wall of the sliding sleeve.

[0010] Optionally, a suspension rope is provided inside the spiral groove, and the end of the suspension rope away from the sliding sleeve passes through the telescopic sleeve and is fixedly connected to a connecting block.

[0011] Optionally, the connecting block is internally rotatably connected to a first clamping plate and a second clamping plate, and the outer walls of the first clamping plate and the second clamping plate are fitted with rubber sleeves.

[0012] Optionally, a U-shaped groove is provided at the end of the first clamping plate away from the connecting block, and a screw is inserted into the inside of the U-shaped groove.

[0013] Optionally, the screw is fixedly connected to the outer wall of the second clamping plate, and the outer wall of the screw is threadedly connected to a threaded sleeve, which abuts against the outer wall of the first clamping plate.

[0014] A method for quick replacement of self-aligning bearings on rollers of a coating production line without strip strip removal includes the following steps: S1. Preparation stage: Control the operation of the telescopic sleeve, upright and threaded support according to the position of the roller shaft to adapt to the working conditions of the roller shaft position, prepare bearing pullers and bearing spare parts, and check the technical parameters of the bearing spare parts one by one according to the design drawings to confirm that all parameters fully meet the design standard requirements. S2. Roller Removal Stage: Remove the bearing housing covers at both ends of the roller shaft, ensuring that the parts are intact during the removal process. Then, fix and lift the roller shaft journal using the disassembly and assembly components to detach the bearing on the roller shaft journal from the bearing housing. S3. Bearing removal stage: Remove the bearing locking ring from the bearing that has been removed from the bearing housing, and use a bearing puller to pull the bearing off the journal of the roller. During the pulling process, the force should be controlled to avoid damage to the surface of the roller journal. S4. Bearing installation stage: Use the bearing heater to preheat the bearing spare parts. The preheating temperature is set to 110℃. After the bearing spare parts are heated evenly and the temperature reaches the set value, immediately align them with the roller journal and slowly push them in. If jamming occurs during the assembly process, use a copper rod to gently tap the end of the bearing to assist in the assembly until the bearing is pushed to the installation limit position. Then, install the bearing locking ring according to the technical requirements to ensure that the bearing is firmly axially positioned. S5. Roller installation stage: After the bearing spare parts are installed, control the disassembly and assembly components to put the roller into the bearing housing. During the lowering process, the speed must be controlled to avoid collision between the roller and the bearing housing. After the roller is reset into the bearing housing, reinstall the bearing housing covers at both ends of the roller. At the same time, add grease that meets the model requirements to the bearing to ensure that the grease is filled evenly and the amount is up to standard. S6. Measurement and Finishing Stage: Use a level to measure the levelness of the roller shaft after bearing replacement. Once the roller shaft levelness meets the standard, begin cleaning the construction waste and bearing housing on site, and check all tools used in the construction one by one. After confirming that no tools are left behind, conduct a test run on the roller shaft. If no abnormalities occur during the test run, it indicates that the roller shaft bearing replacement operation is qualified, and the operation is completed.

[0015] In summary, this application includes at least one of the following beneficial technical effects: This invention, by incorporating a disassembly and assembly component, enables rapid disassembly and assembly of the roller shaft. This facilitates the removal of the roller shaft from the bearing housing or its installation inside, improving the efficiency of roller shaft and bearing assembly and disassembly. Furthermore, the rubber sleeve assists the first and second clamping plates in locking and cushioning the roller shaft journal, preventing damage to the outer surface of the journal. Simultaneously, the disassembly and assembly of the roller shaft is performed on the production line, avoiding the risk of damage to the roller shaft and surrounding equipment during the disassembly and hoisting process to the assembly point. It also prevents excessively large roller shaft hoisting movements that would necessitate the removal of the steel strip in the relevant section, resulting in prolonged overall downtime. Further adjustment components can be added to allow the device to be folded or unfolded. In the folded state, the device's footprint is reduced, making it easier for staff to carry and transport. In the unfolded state, it can operate normally and assist in the removal and replacement of rollers and bearings on the production line.

[0016] In summary, this invention possesses outstanding substantive features and significant progress. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure proposed in this invention; Figure 2 This is a schematic diagram of the overall structure folding proposed in this invention; Figure 3This is a cross-sectional view of the support sleeve structure proposed in this invention; Figure 4 The present invention proposes Figure 3 Enlarged view of the A-section structure; Figure 5 The present invention proposes Figure 3 Enlarged view of the structure of section B; Figure 6 The present invention proposes Figure 3 Enlarged view of the C-section structure.

[0018] Figure label: 1. Telescopic sleeve; 2. Support sleeve; 3. Upright pole; 4. Threaded support foot; 5. Connecting sleeve; 6. First locking bolt; 7. Connecting rod; 8. Sliding block; 9. Slide groove; 10. Slip ring; 11. Telescopic rod; 12. Rotary wheel; 13. Slide sleeve; 14. Spiral groove; 15. Spiral sleeve; 16. Second locking bolt; 17. Lifting rope; 18. Connecting block; 19. First clamping plate; 20. Second clamping plate; 21. Rubber sleeve; 22. U-shaped groove; 23. Screw; 24. Screw sleeve. Detailed Implementation

[0019] 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 embodiments of the present invention, and not all embodiments.

[0020] The components of the embodiments of the invention described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0021] 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.

[0022] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "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 the invention 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 the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] Example 1, as Figures 1 to 2 As shown, a quick-change device for the self-aligning bearing of a coating production line roller without strip steel strip removal includes a telescopic sleeve 1: both ends of the telescopic sleeve 1 are fixedly connected to support sleeves 2, and both ends of the support sleeve 2 are provided with uprights 3. The end of the uprights 3 away from the support sleeve 2 is connected to a threaded support foot 4 by a thread. A connecting sleeve 5 is fixedly connected to the outer wall of the uprights 3, and the connecting sleeve 5 is sleeved on the outer wall of the support sleeve 2. The inside of the connecting sleeve 5 is connected to a first locking bolt 6 by a thread, and the first locking bolt 6 abuts against the outer wall of the support sleeve 2; an adjustment component, which is used to fold the device, and the adjustment component is connected to the support sleeve 2 and the uprights 3; and a disassembly and assembly component, which is used to disassemble and assemble the roller, and the disassembly and assembly component is connected to the telescopic sleeve 1 and the support sleeve 2. In this embodiment, the telescopic sleeve 1 is used to adjust the distance between the two end support sleeves 2 to adapt to the span of the production line, the threaded support 4 is used to adjust the height of the support sleeve 2 to adapt to the height of the production line roller, and the upright 3, together with the connecting sleeve 5 and the first locking bolt 6, is used to adjust the distance between the upright 3 to adapt to the span of the roller. Specifically, workers can pull the two support sleeves 2 apart, causing the telescopic sleeve 1 between them to expand and change the distance between them to accommodate the span of the production line. Workers can also rotate the threaded support leg 4, causing it to gradually disengage from the inside of the upright 3, thus changing the distance between it and the support sleeve 2 and adjusting its height to accommodate the height of the production line roller. Workers can then rotate the first locking bolt 6 to stop locking the support sleeve 2, adjust the position of the upright 3 on the support sleeve 2 as needed, and tighten the first locking bolt 6 after adjustment. The upright 3 is then re-locked onto the support sleeve 2 via the connecting sleeve 5, achieving a quick adjustment of the span between the two uprights 3 on the support sleeve 2. Through the combined effect of these actions, obstacles near the production line roller can be avoided, preventing the device from being blocked by obstacles near the production line roller.

[0025] Example 2, as Figures 3 to 4As shown, the adjustment assembly includes a connecting rod 7 fixedly connected to the outer wall of the upright 3, the connecting rod 7 being inserted into the inside of the support sleeve 2, a slider 8 fixedly connected to the outer wall of the connecting rod 7, a sliding groove 9 and a sliding ring 10 being provided inside the support sleeve 2, the sliding groove 9 and the sliding ring 10 being connected, and the slider 8 being slidably connected inside the sliding groove 9 and the sliding ring 10. In this embodiment, the adjustment component is used to fold the device, so that the upright 3 can be folded or unfolded in conjunction with the telescopic sleeve 1 and the support sleeve 2. In the folded state, the device's footprint is reduced, making it convenient for workers to carry and transport. In the unfolded state, it can perform normal operation and assist in the removal and replacement of rollers and bearings on the production line. Specifically, when the worker needs to fold the device, firstly, rotate the first locking bolt 6 to stop it from locking onto the support sleeve 2. Then, the worker can adjust the position of the upright 3 until the upright 3 drives the slider 8 on the connecting rod 7 to slide to the connection point between the slide groove 9 and one of the slip rings 10. At this point, the worker can rotate the upright 3 in the opposite direction to the telescopic sleeve 1, causing the upright 3 to drive the slider 8 to slide along the inside of the slip ring 10 via the connecting rod 7. Finally, the upright 3 is rotated and folded to one side of the telescopic sleeve 1. The worker can then repeat the above steps to fold the remaining uprights 3, finally completing the folding of the device (e.g., ...). Figure 2 As shown in the figure, this reduces the overall footprint of the device and makes it easier for staff to carry and transport it.

[0026] Example 3, as Figures 5 to 6 As shown, the assembly includes a telescopic rod 11 rotatably connected inside the telescopic sleeve 1 and the support sleeve 2. A rotating wheel 12 is fixedly connected to the end of the telescopic rod 11. The rotating wheel 12 is disposed on the outer wall of the support sleeve 2. A sliding sleeve 13 is slidably connected to the outer wall of the rotating wheel 12. A spiral groove 14 is formed on the outer wall of the sliding sleeve 13. A spiral sleeve 15 is fitted onto the outer wall of the sliding sleeve 13, slidably connected inside the spiral groove 14, and fixedly installed inside the telescopic sleeve 1. A second locking bolt 16 is threadedly connected to the interior of the telescopic sleeve 1 and the spiral sleeve 15, and the second locking bolt 16 abuts against the sliding sleeve 13. The outer wall of the spiral groove 14 is provided with a suspension rope 17. The end of the suspension rope 17 away from the sliding sleeve 13 passes through the telescopic sleeve 1 and is fixedly connected to a connecting block 18. The connecting block 18 is rotatably connected to a first clamping plate 19 and a second clamping plate 20. The outer walls of the first clamping plate 19 and the second clamping plate 20 are fitted with rubber sleeves 21. The end of the first clamping plate 19 away from the connecting block 18 is provided with a U-shaped groove 22. A screw 23 is inserted into the U-shaped groove 22. The screw 23 is fixedly connected to the outer wall of the second clamping plate 20. The outer wall of the screw 23 is threadedly connected to a screw sleeve 24, which abuts against the outer wall of the first clamping plate 19. In this embodiment, the disassembly and assembly assembly is used to assist workers in disassembling and assembling the roller shaft. The rubber sleeve 21 is used to assist the first clamping plate 19 and the second clamping plate 20 in locking and buffering the roller shaft journal, so as to avoid damage to the outer surface of the roller shaft journal by the first clamping plate 19 and the second clamping plate 20. Specifically, when workers need to dismantle the production line rollers and replace the bearings on the roller journals, they first adjust the telescopic sleeve 1, upright rod 3, and threaded support 4 to a state suitable for the working conditions of the production line rollers, avoiding obstacles around the rollers. Then, workers can remove the bearing seat covers at both ends of the rollers, exposing the roller journals and bearings. Next, workers can rotate the rotating wheel 12, causing it to drive the sliding sleeve 13 to rotate via the telescopic rod 11. This causes the sliding sleeve 13 to move spirally along the inside of the spiral sleeve 15 through the spiral groove 14. The spiral movement of the sliding sleeve 13 slides along the outer wall of the telescopic rod 11, releasing the lifting rope 17 from the spiral groove 14. This allows the connecting block 18 to pull the lifting rope 17 away from the telescopic sleeve 1 and lower it until the connecting block 18 lowers the first clamping plate 19 and the second clamping plate 20 to the position of the roller journal. At this point, workers can rotate and open the first clamping plate 19 and the second clamping plate 20, and then... The second clamping plate 20 is fitted onto the outer wall of the roller shaft journal. Finally, the operator can rotate the screw sleeve 24, causing the screw sleeve 24 to be locked against the outer wall of the first clamping plate 19 via the screw 23, thus locking and fixing the first clamping plate 19 and the second clamping plate 20. At this point, the roller shaft journal is fixed. After the journals at both ends of the roller shaft are completely locked and fixed by the first clamping plate 19 and the second clamping plate 20, the operator can rotate the rotating wheel 12 in the opposite direction, causing the rotating wheel 12 to drive the sliding sleeve 13 to reverse through the telescopic rod 11, thereby causing the sliding sleeve 13 to pass through the spiral groove 14. The spiral sleeve 15 rotates in a spiral shape inside to reset, and the lifting rope 17 is wound up through the spiral groove 14. The lifting rope 17 pulls the first clamping plate 19 and the second clamping plate 20 upward through the connecting block 18. The first clamping plate 19 and the second clamping plate 20 pull the roller shaft journal upward until the roller shaft journal drives the bearing to disengage from the bearing seat and stops. At this time, the removal of the bearing is completed. The worker can turn the second locking bolt 16 to lock the sliding sleeve 13 to prevent the rotation of the sliding sleeve 13 from causing a change in the height of the roller shaft. When the worker needs to reinstall and reset the roller shaft, the second locking bolt 16 can be turned to stop locking the sliding sleeve 13, and the turntable 12 can be turned slowly to allow the lifting rope 17 to slowly lower the roller shaft into the bearing housing through the connecting block 18, the first clamping plate 19 and the second clamping plate 20. Then the worker can turn the screw sleeve 24 to stop locking the first clamping plate 19 and the second clamping plate 20, allowing the first clamping plate 19 and the second clamping plate 20 to detach from the roller shaft journal. The worker can then reinstall the bearing housing cover to fix the roller shaft bearing and journal, thereby achieving the effect of quick disassembly and assembly of the roller shaft. This makes it convenient for the worker to remove the roller shaft from the bearing housing or install it into the bearing housing, improving the efficiency of the worker in disassembling and assembling the roller shaft and bearing.

[0027] A method for quick replacement of self-aligning bearings on rollers of a coating production line without strip strip removal includes the following steps: S1. Preparation stage: Control the operation of telescopic sleeve 1, upright 3 and threaded support 4 according to the position of the roller shaft to adapt to the working conditions of the roller shaft position, prepare bearing pullers and bearing spare parts, and check the technical parameters of the bearing spare parts one by one according to the design drawings to confirm that all parameters fully meet the design standard requirements. S2. Roller Removal Stage: Remove the bearing housing covers at both ends of the roller shaft, ensuring that the parts are intact during the removal process. Then, fix and lift the roller shaft journal using the disassembly and assembly components to detach the bearing on the roller shaft journal from the bearing housing. S3. Bearing removal stage: Remove the bearing locking ring from the bearing that has been removed from the bearing housing, and use a bearing puller to pull the bearing off the journal of the roller. During the pulling process, the force should be controlled to avoid damage to the surface of the roller journal. S4. Bearing installation stage: Use the bearing heater to preheat the bearing spare parts. The preheating temperature is set to 110℃. After the bearing spare parts are heated evenly and the temperature reaches the set value, immediately align them with the roller journal and slowly push them in. If jamming occurs during the assembly process, use a copper rod to gently tap the end of the bearing to assist in the assembly until the bearing is pushed to the installation limit position. Then, install the bearing locking ring according to the technical requirements to ensure that the bearing is firmly axially positioned. S5. Roller installation stage: After the bearing spare parts are installed, control the disassembly and assembly components to put the roller into the bearing housing. During the lowering process, the speed must be controlled to avoid collision between the roller and the bearing housing. After the roller is reset into the bearing housing, reinstall the bearing housing covers at both ends of the roller. At the same time, add grease that meets the model requirements to the bearing to ensure that the grease is filled evenly and the amount is up to standard. S6. Measurement and Finishing Stage: Use a level to measure the levelness of the roller shaft after bearing replacement. Once the roller shaft levelness meets the standard, begin cleaning the construction waste and bearing housing on site, and check all tools used in the construction one by one. After confirming that no tools are left behind, conduct a test run on the roller shaft. If no abnormalities occur during the test run, it indicates that the roller shaft bearing replacement operation is qualified, and the operation is completed.

[0028] The working principle involves controlling the telescopic sleeve 1, upright 3, and threaded support 4 according to the position of the roller shaft to adapt to the working conditions of the roller shaft's location. The bearing housing covers at both ends of the roller shaft are removed. Then, the roller shaft is removed from the bearing housing using the disassembly and assembly assembly. The bearing locking ring on the bearing is removed, and the bearing is pulled out of the roller shaft journal using a bearing puller. The heated bearing spare part is then aligned with the roller shaft journal and slowly pushed in until the bearing reaches the installation limit position. The bearing locking ring is then reinstalled to ensure secure axial positioning of the bearing. Next, the disassembly and assembly assembly is controlled to place the roller shaft into the bearing housing, and the disassembly and assembly assembly is removed from the bearing journal. Finally, the roller shaft is reassembled... Install the bearing housing cover at the end, and simultaneously add grease to the inside of the bearing to ensure lubrication. Finally, use a level to measure the levelness of the roller shaft after bearing replacement. When the levelness of the roller shaft meets the standard, test run the roller shaft. If no abnormalities occur during the test run, it indicates that the roller shaft bearing replacement operation is qualified, and the operation is completed. This achieves the effect of quickly replacing the roller shaft bearing. At the same time, replacing it on the production line can avoid the situation where the roller shaft and surrounding equipment are bumped and scratched during the process of disassembling and hoisting the entire roller shaft to the assembly point for replacement. It also avoids the situation where the roller shaft hoisting movement is too large and the steel strip in the section needs to be removed, resulting in an excessively long overall downtime.

[0029] The above specific embodiments are merely optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A quick-change device for self-aligning bearings on rollers of a coating production line that eliminates the need for strip strip removal, characterized in that, Includes a telescopic sleeve (1), both ends of which are fixedly connected to a support sleeve (2), both ends of which are provided with uprights (3), the end of the upright (3) away from the support sleeve (2) is connected to a threaded support foot (4) by a thread, the outer wall of the upright (3) is fixedly connected to a connecting sleeve (5), the connecting sleeve (5) is sleeved on the outer wall of the support sleeve (2), and the inside of the connecting sleeve (5) is connected to a first locking bolt (6) by a thread, the first locking bolt (6) abutting against the outer wall of the support sleeve (2); An adjustment assembly for folding the device, the adjustment assembly being connected to the support sleeve (2) and the upright (3); The disassembly and assembly assembly is used to disassemble and assemble the roller shaft. The disassembly and assembly assembly is connected to the telescopic sleeve (1) and the support sleeve (2).

2. The quick-change device for self-aligning bearings of a coating production line without strip steel strip removal, as described in claim 1, is characterized in that... The adjustment assembly includes a connecting rod (7) fixedly connected to the outer wall of the upright (3), the connecting rod (7) being inserted into the inside of the support sleeve (2), and a slider (8) fixedly connected to the outer wall of the connecting rod (7).

3. The quick-change device for self-aligning bearings of a coating production line without strip steel strip removal, as described in claim 2, is characterized in that... The support sleeve (2) has a sliding groove (9) and a sliding ring (10) inside. The sliding groove (9) and the sliding ring (10) are connected. The slider (8) is slidably connected inside the sliding groove (9) and the sliding ring (10).

4. The quick-change device for self-aligning bearings of a coating production line without strip steel strip removal, as described in claim 1, is characterized in that... The assembly and disassembly assembly includes a telescopic rod (11) rotatably connected inside the telescopic sleeve (1) and the support sleeve (2). The end of the telescopic rod (11) is fixedly connected to a rotating wheel (12). The rotating wheel (12) is disposed on the outer wall of the support sleeve (2). The outer wall of the rotating wheel (12) is slidably connected to a sliding sleeve (13). The outer wall of the sliding sleeve (13) is provided with a spiral groove (14).

5. The quick-change device for self-aligning bearings of a coating production line without strip steel strip removal, as described in claim 4, is characterized in that... The outer wall of the sliding sleeve (13) is fitted with a spiral sleeve (15), which is slidably connected inside the spiral groove (14). The spiral sleeve (15) is fixedly installed inside the telescopic sleeve (1). The telescopic sleeve (1) and the spiral sleeve (15) are connected by a second locking bolt (16) through a thread. The second locking bolt (16) abuts against the outer wall of the sliding sleeve (13).

6. The quick-change device for self-aligning bearings of a coating production line without strip steel strip removal, as described in claim 5, is characterized in that... The spiral groove (14) is provided with a suspension rope (17), and the end of the suspension rope (17) away from the sliding sleeve (13) passes through the telescopic sleeve (1) and is fixedly connected to the connecting block (18).

7. A quick-change device for self-aligning bearings of a coating production line without strip steel strip removal, as described in claim 6, is characterized in that... The connecting block (18) is rotatably connected to a first clamping plate (19) and a second clamping plate (20), and the outer walls of the first clamping plate (19) and the second clamping plate (20) are fitted with rubber sleeves (21).

8. A quick-change device for self-aligning bearings of a coating production line without strip steel strip removal, as described in claim 7, is characterized in that... The first clamping plate (19) has a U-shaped groove (22) at one end away from the connecting block (18), and a screw (23) is inserted into the U-shaped groove (22).

9. A quick-change device for self-aligning bearings of a coating production line without strip steel strip removal, as described in claim 8, is characterized in that... The screw (23) is fixedly connected to the outer wall of the second clamping plate (20), and the outer wall of the screw (23) is connected to the screw sleeve (24) by thread, and the screw sleeve (24) abuts against the outer wall of the first clamping plate (19).

10. A method for quick replacement of self-aligning bearings on rollers of a coating production line without strip strip removal, as described in any one of claims 1-9, characterized in that... Includes the following steps: S1. Preparation stage: Control the operation of the telescopic sleeve (1), upright (3) and threaded support (4) according to the position of the roller shaft to adapt to the working conditions of the roller shaft position, prepare bearing pullers and bearing spare parts, and check the technical parameters of the bearing spare parts one by one according to the design drawings to confirm that all parameters fully meet the design standard requirements. S2. Roller Removal Stage: Remove the bearing housing covers at both ends of the roller shaft, ensuring that the parts are intact during the removal process. Then, fix and lift the roller shaft journal using the disassembly and assembly components to detach the bearing on the roller shaft journal from the bearing housing. S3. Bearing removal stage: Remove the bearing locking ring from the bearing that has been removed from the bearing housing, and use a bearing puller to pull the bearing off the journal of the roller. During the pulling process, the force should be controlled to avoid damage to the surface of the roller journal. S4. Bearing installation stage: Use the bearing heater to preheat the bearing spare parts. The preheating temperature is set to 110℃. After the bearing spare parts are heated evenly and the temperature reaches the set value, immediately align them with the roller journal and slowly push them in. If jamming occurs during the assembly process, use a copper rod to gently tap the end of the bearing to assist in the assembly until the bearing is pushed to the installation limit position. Then, install the bearing locking ring according to the technical requirements to ensure that the bearing is firmly axially positioned. S5. Roller installation stage: After the bearing spare parts are installed, control the disassembly and assembly components to put the roller into the bearing housing. During the lowering process, the speed must be controlled to avoid collision between the roller and the bearing housing. After the roller is reset into the bearing housing, reinstall the bearing housing covers at both ends of the roller. At the same time, add grease that meets the model requirements to the bearing to ensure that the grease is filled evenly and the amount is up to standard. S6. Measurement and Finishing Stage: Use a level to measure the levelness of the roller shaft after bearing replacement. Once the roller shaft levelness meets the standard, begin cleaning the construction waste and bearing housing on site, and check all tools used in the construction one by one. After confirming that no tools are left behind, conduct a test run on the roller shaft. If no abnormalities occur during the test run, it indicates that the roller shaft bearing replacement operation is qualified, and the operation is completed.

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