Intelligent switching type support roller maintenance system and method

Abstract

The present application relates to the technical field of cold-rolling continuous production line maintenance, in particular to an intelligent switching type supporting roller maintenance system and method. The supporting roller maintenance system comprises a plurality of lifting type supporting rollers arranged side by side on the cold-rolling continuous production line, and a strip steel is arranged on the supporting roller. Each lifting type supporting roller is composed of a roller body, a supporting base, a support, a lifting adjusting mechanism, a fault detection device and an alarm device. The supporting roller maintenance method can improve the maintenance efficiency of the supporting roller of the cold-rolling continuous production line, and does not affect the production operation of the continuous production line.

Description

Technical Field

[0001] This invention relates to the field of maintenance technology for continuous cold rolling production lines, specifically to an intelligent switching support roll maintenance system and method. Background Technology

[0002] A continuous cold rolling production line typically includes single or combined processes such as pickling, rolling, degreasing, annealing, and coating. To ensure process stability, the production line operates continuously. Any downtime in a process segment will affect product performance and quality. A continuous cold rolling production line contains dozens to hundreds of support rollers to support the strip and ensure its stable operation.

[0003] Sometimes, the support rollers can suddenly jam during the operation of the strip. When the support rollers stop moving, the surface quality of the strip is affected, especially on continuous production lines for finished products. Current technology requires the strip to be loosened in a stopped state before maintenance can be performed on the support rollers. However, stopping the machine affects the efficiency of the continuous production line, and is also limited by the process flow, preventing arbitrary shutdowns. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an intelligent switching support roll maintenance system and method that addresses the shortcomings of the prior art, thereby improving the maintenance efficiency of support rolls in a continuous cold rolling production line without affecting the production operation of the continuous production line.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] An intelligent switching support roll maintenance system includes multiple lifting support rolls 1 arranged in parallel on a cold rolling continuous production line. The upper part of the multiple lifting support rolls 1 supports the strip steel 1 running on the production line. Each lifting support roll 1 is equipped with a lifting adjustment mechanism 6, a fault detection device 7, and an alarm device 8. The lifting adjustment mechanism 6, the fault detection device 7, and the alarm device 8 are all electrically connected to the support roll system controller.

[0007] Furthermore, the lifting support roller 1 includes a roller body 3, with both ends of the roller body 3 being snapped onto the support base 4. The support base 4 has a bracket 5 at its bottom, which is fixed to the ground. A lifting adjustment mechanism 6 for adjusting the height of the roller body is provided between the support base 4 and the bracket 5.

[0008] Furthermore, a fault detection device 7 for detecting faults in the support roller is provided at the contact point between the support base 4 and the roller body 3, and an alarm device 8 is provided on the bracket 5.

[0009] Furthermore, the maximum lifting height of the lifting adjustment mechanism 6 is adapted to the space height required for maintenance of the support roller.

[0010] Furthermore, both the roller body 3 and the support base 4 are detachable and replaceable.

[0011] Furthermore, the number of the plurality of lifting support rollers 1 is not less than three.

[0012] Furthermore, the fault detection device 7 is specifically a speed detector, and the alarm device 8 is specifically a buzzer.

[0013] Based on the same inventive concept, this application also provides an intelligent switching support roller maintenance method, which, based on the support roller maintenance system described above, includes the following steps:

[0014] S1, the rotational speed of each support roller is monitored in real time by a speed detector, and a fault judgment algorithm based on the rotational speed is used to determine whether each support roller has failed;

[0015] S2, based on the support roller maintenance optimization algorithm, control the lifting of multiple support rollers adjacent to the faulty support roller, so that the strip steel wire supported by them rises;

[0016] S3. After the height of the strip steel wire above the faulty support roller is greater than the space required for the maintenance of the faulty support roller, the faulty support roller is maintained and replaced.

[0017] S4. After the faulty support roller has been repaired, adjust its height to the standard height.

[0018] S5 controls the jacking support rollers to descend to the standard height.

[0019] Specifically, the fault diagnosis algorithm based on rotational speed is as follows:

[0020] S11, the rotational speed of the nth (n≥3) support roller is monitored in real time by a speed detector and recorded as W. n ;

[0021] S12, real-time monitoring of the rotational speeds of the (n-2), (n-1), (n+1), and (n+2)th support rollers, denoted as W respectively. n-2 W n-1 W n+1 W n+2 ;

[0022] S13, determine W n Does it satisfy (W) n-2 +W n-1 +W n+1 +W n+2 ) / 8≤W n ≤(W n-2 +W n-1 +W n+1 +W n+2If the value is 2, then the nth support roller is determined to be fault-free; otherwise, the nth support roller is determined to be faulty, and its corresponding buzzer is controlled to sound an alarm.

[0023] The optimization algorithm for the maintenance of the support roller is specifically as follows:

[0024] S21, determine the serial number of the faulty support roller, denoted as m;

[0025] S22, when m < 3, control the lifting of support rollers with sequence numbers m+1 and m+2;

[0026] S22, when m≥3, control the lifting of the support rollers with sequence numbers m-2, m-1, m+1, and m+2.

[0027] Compared with the prior art, the present invention has the following main advantages:

[0028] 1. This invention, through the cooperation of a fault detection device, a support roller system controller and a lifting adjustment mechanism, can intelligently determine the faulty support roller number and control the corresponding support roller to drive the strip steel wire to rise, providing space for the repair and replacement of the faulty support roller without affecting the production operation of the continuous production line.

[0029] 2. The present invention is equipped with multiple parallel lifting support rollers, which serve as backups for each other. When a support roller fails, the lifting adjustment mechanism can lower it while the other support rollers can still work normally, ensuring the normal operation of the cold rolling continuous production line.

[0030] 3. The fault judgment algorithm based on rotational speed provided by this invention can accurately and efficiently determine whether the support roller has malfunctioned;

[0031] 4. The support roll maintenance optimization algorithm provided by this invention can reasonably and efficiently control the lifting of adjacent support rolls of the faulty support roll, thereby improving the maintenance efficiency of support rolls in the cold rolling continuous production line. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the support roller maintenance system in an embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of the lifting support roller in an embodiment of the present invention;

[0034] Figure 3 This is a flowchart of the support roller maintenance method in an embodiment of the present invention.

[0035] In the diagram: 1. Running strip steel; 2. Lifting support roller; 3. Roller body; 4. Support base; 5. Bracket; 6. Lifting adjustment mechanism; 7. Fault detection device; 8. Alarm device. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0037] It should be noted that, depending on the implementation needs, the various steps / components described in this application can be broken down into more steps / components, or two or more steps / components or parts of the operation of steps / components can be combined into new steps / components to achieve the purpose of this invention.

[0038] I. An intelligent switching support roller maintenance system and method

[0039] like Figures 1-2 As shown, the present invention provides an intelligent switching support roll maintenance system, including multiple lifting support rolls 1 arranged in parallel on a cold rolling continuous production line. The upper part of the multiple lifting support rolls 1 supports the strip steel 1 running on the production line. Each lifting support roll 1 is equipped with a lifting adjustment mechanism 6, a fault detection device 7 and an alarm device 8. The lifting adjustment mechanism 6, the fault detection device 7 and the alarm device 8 are all electrically connected to the support roll system controller.

[0040] Furthermore, the lifting support roller 1 includes a roller body 3, with both ends of the roller body 3 being snapped onto the support base 4. The support base 4 has a bracket 5 at its bottom, which is fixed to the ground. A lifting adjustment mechanism 6 for adjusting the height of the roller body is provided between the support base 4 and the bracket 5.

[0041] Furthermore, a fault detection device 7 for detecting faults in the support roller is provided at the contact point between the support base 4 and the roller body 3, and an alarm device 8 is provided on the bracket 5.

[0042] Furthermore, the maximum lifting height of the lifting adjustment mechanism 6 is adapted to the space height required for maintenance of the support roller.

[0043] Furthermore, both the roller body 3 and the support base 4 are detachable and replaceable.

[0044] Furthermore, the number of the plurality of lifting support rollers 1 is not less than three.

[0045] Furthermore, the fault detection device 7 is specifically a speed detector, and the alarm device 8 is specifically a buzzer.

[0046] II. A Smart Switching Support Roller Maintenance Method

[0047] Based on the same inventive concept, this application also provides an intelligent switching support roller maintenance method, based on the support roller maintenance system described above, such as... Figure 3 As shown, it includes the following steps:

[0048] S1, the rotational speed of each support roller is monitored in real time by a speed detector, and a fault judgment algorithm based on the rotational speed is used to determine whether each support roller has failed;

[0049] S2, based on the support roller maintenance optimization algorithm, control the lifting of multiple support rollers adjacent to the faulty support roller, so that the strip steel wire supported by them rises;

[0050] S3. After the height of the strip steel wire above the faulty support roller is greater than the space required for the maintenance of the faulty support roller, the faulty support roller is maintained and replaced.

[0051] S4. After the faulty support roller has been repaired, adjust its height to the standard height.

[0052] S5 controls the jacking support rollers to descend to the standard height.

[0053] Furthermore, the fault diagnosis algorithm based on rotational speed is specifically as follows:

[0054] S11, the rotational speed of the nth (n≥3) support roller is monitored in real time by a speed detector and recorded as W. n ;

[0055] S12, real-time monitoring of the rotational speeds of the (n-2), (n-1), (n+1), and (n+2)th support rollers, denoted as W respectively. n-2 W n-1 W n+1 W n+2 ;

[0056] S13, determine W n Does it satisfy (W) n-2 +W n-1 +W n+1 +W n+2 ) / 8≤W n ≤(W n-2 +W n-1 +W n+1 +W n+2 If the value is 2, then the nth support roller is determined to be fault-free; otherwise, the nth support roller is determined to be faulty, and its corresponding buzzer is controlled to sound an alarm.

[0057] Furthermore, the support roller maintenance optimization algorithm is specifically as follows:

[0058] S21, determine the serial number of the faulty support roller, denoted as m;

[0059] S22, when m < 3, control the lifting of support rollers with sequence numbers m+1 and m+2;

[0060] S22, when m≥3, control the lifting of the support rollers with sequence numbers m-2, m-1, m+1, and m+2.

[0061] In summary:

[0062] 1. This invention, through the cooperation of a fault detection device, a support roller system controller and a lifting adjustment mechanism, can intelligently determine the faulty support roller number and control the corresponding support roller to drive the strip steel wire to rise, providing space for the repair and replacement of the faulty support roller without affecting the production operation of the continuous production line.

[0063] 2. The present invention is equipped with multiple parallel lifting support rollers, which serve as backups for each other. When a support roller fails, the lifting adjustment mechanism can lower it while the other support rollers can still work normally, ensuring the normal operation of the cold rolling continuous production line.

[0064] 3. The fault judgment algorithm based on rotational speed provided by this invention can accurately and efficiently determine whether the support roller has malfunctioned;

[0065] 4. The support roll maintenance optimization algorithm provided by this invention can reasonably and efficiently control the lifting of adjacent support rolls of the faulty support roll, thereby improving the maintenance efficiency of support rolls in the cold rolling continuous production line.

[0066] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for intelligent switching support roller maintenance, employing a support roller maintenance system, characterized in that: The support roll maintenance system includes multiple lifting support rolls (1) arranged in parallel on the cold rolling continuous production line. The multiple lifting support rolls (1) support the strip steel (1) running on the production line. Each lifting support roll (1) is equipped with a lifting adjustment mechanism (6), a fault detection device (7) and an alarm device (8). The lifting adjustment mechanism (6), the fault detection device (7) and the alarm device (8) are all electrically connected to the support roll system controller. The method for overhauling the support roller includes the following steps: S1, the rotational speed of each support roller is monitored in real time by a speed detector, and a fault judgment algorithm based on the rotational speed is used to determine whether each support roller has failed; The fault diagnosis algorithm based on rotational speed is as follows: S11, the rotational speed of the nth support roller is monitored in real time by a speed detector and recorded as W. n ; S12, real-time monitoring of the rotational speeds of the (n-2), (n-1), (n+1), and (n+2)th support rollers, denoted as W respectively. n-2 W n-1 W n+1 W n+2 ; S13, determine W n Does it satisfy (W) n-2 +W n-1 +W n+1 +W n+2 ) / 8≤W n ≤ (W) n-2 +W n-1 +W n+1 +W n+2 If the value is 2, then the nth support roller is determined to be fault-free; otherwise, the nth support roller is determined to be faulty, and its corresponding buzzer is controlled to sound an alarm. Where n≥3; S2, based on the support roller maintenance optimization algorithm, control the lifting of multiple support rollers adjacent to the faulty support roller, so that the strip steel wire supported by them rises; The optimization algorithm for the maintenance of the support roller is as follows: S21, determine the serial number of the faulty support roller, denoted as m; S22, when m < 3, control the lifting of support rollers with sequence numbers m+1 and m+2; S22, when m≥3, control the lifting of the support rollers with sequence numbers m-2, m-1, m+1, and m+2; S3. After the height of the strip steel wire above the faulty support roller is greater than the space required for the maintenance of the faulty support roller, the faulty support roller is maintained and replaced. S4. After the faulty support roller has been repaired, adjust its height to the standard height. S5 controls the jacking support rollers to descend to the standard height.

2. The intelligent switching support roller maintenance method according to claim 1, characterized in that, The lifting support roller (1) includes a roller body (3), with both ends of the roller body (3) being snapped onto the support base (4). The support base (4) has a bracket (5) at its bottom, which is fixed to the ground. A lifting adjustment mechanism (6) for adjusting the height of the roller body is provided between the support base (4) and the bracket (5).

3. The intelligent switching support roller maintenance method according to claim 2, characterized in that, The support base (4) is provided with a fault detection device (7) for detecting faults in the support roller at the contact point with the roller body (3), and the bracket (5) is provided with an alarm device (8).

4. The intelligent switching support roller maintenance method according to claim 1, characterized in that, The maximum lifting height of the lifting adjustment mechanism (6) is adapted to the space height required for maintenance of the support roller.

5. The intelligent switching support roller maintenance method according to claim 2, characterized in that, Both the roller body (3) and the support base (4) are detachable and replaceable.

6. The intelligent switching support roller maintenance method according to claim 1, characterized in that, The number of the plurality of lifting support rollers (1) is not less than three.

7. The intelligent switching support roller maintenance method according to claim 1, characterized in that, The fault detection device (7) is specifically a speed detector, and the alarm device (8) is specifically a buzzer.

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