Vertical-Horizontal Coupled Vibration Control Device, System and Method for Corrugated Rolling Mill

Abstract

The present invention belongs to the technical field of rolling mill vibration control, and particularly relates to a vertical-horizontal coupling vibration control device, system and method for a corrugated roll rolling mill. The control device includes a housing, an absorption vibration container is arranged inside the housing, a group of steel ball particles is placed in the absorption vibration container, the left side of the absorption vibration container is connected to one end of a reset spring, the other end of the reset spring is fixedly connected to a third base, the third base is fixedly installed on a third slider, and the third slider is slidably arranged on a third linear guide rail. The present invention is simple and easy to understand and implement. It can realize the online determination of the vertical-horizontal coupling vibration of the corrugated roll rolling mill through a laser horizontal speed sensor, a laser vertical speed sensor, a rolling force sensor and a horizontal force sensor, and realize the absorption of the vertical-horizontal coupling vibration of the corrugated roll rolling mill by driving the absorption vibration container to move through a first linear motor and a second linear motor, optimizing the control performance of the corrugated roll rolling mill.

Description

Technical Field

[0001] The present invention belongs to the technical field of rolling mill vibration control, and particularly relates to a vertical-horizontal coupling vibration control device, system and method for a corrugated roll rolling mill. Background Art

[0002] A rolling mill is a large-scale, complex electro-mechanical-hydraulic integrated device, with characteristics such as variability, strong coupling, non-linearity, time-variability, and multi-constraints. With the rapid development of rolling mills towards large-scale, high-speed, continuous, and intelligent directions, and the adoption of a large number of new technologies, many new problems have emerged in rolling mill vibrations, often manifested as the coupling of multiple vibration types. The most common one is vertical-horizontal coupling vibration, which directly affects the stability of the rolling process and the quality of the rolled product, and has become a research hotspot among many scholars and experts at home and abroad. Most of the control methods for vertical-horizontal coupling vibration of rolling mills are achieved by changing process parameters (reducing rolling speed, reducing rolling force, adjusting the lubrication characteristics of emulsion), but the passive suppression method of adjusting parameters is often only applicable to a certain specific working condition. As a device with a special roll profile, the corrugated roll rolling mill has outstanding advantages such as refining grains, improving plate shape, and increasing bonding strength in the preparation of composite plates. However, the periodic strong load induced by the complex roll profile curve poses higher requirements for the control of vertical-horizontal coupling vibration of the rolling mill, and has become a research hotspot and difficulty in the field of rolling mill vibration. The existing research methods for corrugated roll rolling mill vibration often use physical quantities such as vibration displacement, vibration velocity, or vibration acceleration to represent. Rolling mill vibration is a dynamic process that is transmitted in the form of energy. Using a single physical quantity to measure the vibration response and vibration transmission of a corrugated roll rolling mill cannot fully reflect the actual situation of corrugated roll rolling mill vibration. Summary of the Invention

[0003] The present invention provides a vertical-horizontal coupling vibration control device, system and method for a corrugated roll rolling mill aiming at the above problems.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] Vertical-horizontal coupling vibration control device for corrugated rolling mill, including a housing. An absorption vibration container is arranged inside the housing. A group of steel ball particles is placed inside the absorption vibration container. The left side of the absorption vibration container is connected to one end of a return spring, and the other end of the return spring is fixedly connected to a third base. The third base is fixedly installed on a third slider, and the third slider is slidably arranged on a third linear guide rail. The right side of the absorption vibration container is fixedly connected to the output end of a first linear motor. The first linear motor is fixedly installed on a first base, and the first base is fixedly installed on a first slider. The first slider is slidably arranged on a first linear guide rail. The bottom of the absorption vibration container is fixedly connected to the output end of a second linear motor. The second linear motor is fixedly installed on a second base, and the second base is fixedly installed on a second slider. The second slider is slidably installed on a second linear guide rail. The first linear guide rail, the second linear guide rail and the third linear guide rail are all fixedly installed on the housing.

[0006] Furthermore, the absorption vibration container is made of magnesium alloy.

[0007] Still further, the group of steel ball particles in the absorption vibration container accounts for 30%-60% of the total volume of the absorption vibration container.

[0008] Even further, first rectangular bosses and second rectangular bosses are respectively machined on the front and rear end faces of the absorption vibration container. A first end cover is installed on the first rectangular boss, and a second end cover is installed on the second rectangular boss. A third end cover is installed on the top of the absorption vibration container. A first sealing ring is installed at the connection between the first end cover and the first rectangular boss, a second sealing ring is installed at the connection between the second end cover and the second rectangular boss, and a third sealing ring is installed at the connection between the third end cover and the absorption vibration container.

[0009] Vertical-horizontal coupling vibration control system for a corrugated roll mill, comprising a vertical-horizontal coupling vibration control device, a sensor mounting base, a laser horizontal velocity sensor, a laser vertical velocity sensor, a rolling force sensor, a horizontal force sensor, a filter, a computer, a horizontal vibration controller, and a vertical vibration controller. Switch-type magnetic bases are provided on both the left and right sides of the housing in the vertical-horizontal coupling vibration control device. The vertical-horizontal coupling vibration control device is adsorbed on the upper balance beam of the corrugated roll mill through the switch-type magnetic bases. The upper balance beam is connected to the upper roll bearing housing. The sensor mounting base is fixedly installed on one side of the frame. The laser horizontal velocity sensor and the laser vertical velocity sensor are both installed on the sensor mounting base, and are respectively used for real-time online non-contact measurement of the movement velocities of the upper roll bearing housing in the horizontal and vertical directions during the rolling process of the composite plate. The rolling force sensor is installed between the screw-down device and the upper roll bearing housing, and is used for real-time measurement of the rolling force in the vertical direction during the rolling process of the composite plate. Horizontal force sensors are installed between the upper roll bearing housing and the frame, and between the lower roll bearing housing and the frame. The horizontal force sensors are used for real-time measurement of the horizontal component of the rolling force during the rolling process of the composite plate. The laser horizontal velocity sensor, the laser vertical velocity sensor, the rolling force sensor, and the horizontal force sensor are all connected to the computer through the filter, and are used for transmitting the measured signals to the computer. The computer calculates the vertical vibration power flow and the horizontal vibration power flow based on the measured signals. The computer is connected to the horizontal vibration controller and the vertical vibration controller, and is used for transmitting control signals to the horizontal vibration controller and the vertical vibration controller. The horizontal vibration controller and the vertical vibration controller are respectively used for controlling the first linear motor and the second linear motor in the vertical-horizontal coupling vibration control device to work.

[0010] Vertical-horizontal coupling vibration control method for a corrugated roll mill. The real-time online non-contact measurement of the movement velocity of the upper roll bearing housing in the horizontal direction during the rolling process of the composite plate is carried out by the laser horizontal velocity sensor. The real-time online non-contact measurement of the movement velocity of the upper roll bearing housing in the vertical direction during the rolling process of the composite plate is carried out by the laser vertical velocity sensor. The real-time measurement of the rolling force in the vertical direction during the rolling process of the composite plate is carried out by the rolling force sensor. The real-time measurement of the horizontal component of the rolling force during the rolling process of the composite plate is carried out by the horizontal force sensor. The computer receives the signals transmitted back by the laser horizontal velocity sensor, the laser vertical velocity sensor, the rolling force sensor, and the horizontal force sensor, and calculates the vertical vibration power flow and the horizontal vibration power flow. Specifically:

[0011] W 水平 =k 水平 ×F 水平 ×V 水平

[0012] Among them, W 水平 is the horizontal vibration power flow; k 水平 is the horizontal vibration influence factor;

[0013] F 水平 is the horizontal rolling force component obtained by online real-time measurement through a horizontal force sensor;

[0014] V 水平 is the moving speed of the upper roll bearing housing in the horizontal direction obtained by online real-time measurement through a laser horizontal speed sensor;

[0015] W 垂直 = k 垂直 ×F 垂直 ×V 垂直

[0016] Among them, W 垂直 is the vertical vibration power flow; k 垂直 is the vertical vibration influence factor;

[0017] F 垂直 is the rolling force obtained by online real-time measurement through a rolling force sensor;

[0018] V 垂直 is the moving speed of the upper roll bearing housing in the vertical direction obtained by online real-time measurement through a laser vertical speed sensor;

[0019] When W 水平 ≥W 水平0 the computer sends a control signal to the horizontal vibration controller, and the horizontal vibration controller starts to work and sends a vibration absorption signal to the first linear motor, and the first linear motor starts to work;

[0020] W 水平0 is the set threshold of the horizontal vibration power flow;

[0021] When W 垂直 ≥W 垂直0 the computer sends a control signal to the vertical vibration controller, and the vertical vibration controller sends a vibration absorption signal to the second linear motor, and the second linear motor starts to work;

[0022] W 垂直0 is the set threshold of the vertical vibration power flow.

[0023] Compared with the prior art, the present invention has the following advantages:

[0024] The present invention is simple and easy to understand and implement. It can realize the on-line determination of the vertical-horizontal coupled vibration of the corrugated roll mill through a laser horizontal speed sensor, a laser vertical speed sensor, a rolling force sensor, and a horizontal force sensor, and realize the vibration absorption of the vertical-horizontal coupled vibration of the corrugated roll mill by driving the vibration absorption container to move with a first linear motor and a second linear motor, optimizing the control performance of the corrugated roll mill;

[0025] The present invention synthesizes the motion of the working roll of the corrugated roll mill and the rolling force into a single quantity through power flow, which contains richer vibration information and can accurately reflect the essence of the vibration of the corrugated roll mill. Description of the Drawings

[0026] Figure 1 is a schematic structural diagram of the vertical-horizontal coupled vibration control device of the present invention;

[0027] Figure 2 is the present invention Figure 1 is a cross-sectional view taken along the A-A section in the present invention;

[0028] Figure 3 is a side view of the vibration absorption container of the present invention;

[0029] Figure 4 is the present invention Figure 3 is a cross-sectional view taken along the B-B section in the present invention;

[0030] Figure 5 is a schematic installation diagram of the vertical-horizontal coupled vibration control device of the present invention;

[0031] Figure 6 is a schematic structural diagram of the vertical-horizontal coupled vibration control system of the present invention;

[0032] Figure 7 is a module diagram of the vertical-horizontal coupled vibration control system of the present invention;

[0033] In the figure, there are housing - 1, vibration absorption container - 2, steel ball particle group - 3, return spring - 4, third base - 5, third slider - 6, third linear guide - 7, first linear motor - 8, first base - 9, first slider - 10, first linear guide - 11, second linear motor - 12, second base - 13, second slider - 14, second linear guide - 15, sensor mounting base - 16, laser horizontal velocity sensor - 17, laser vertical velocity sensor - 18, rolling force sensor - 19, horizontal force sensor - 20, filter - 21, computer - 22, horizontal vibration controller - 23, vertical vibration controller - 24, switch - type magnetic base - 25, upper balance beam - 26, upper roll bearing housing - 27, screw down device - 28, housing - 29, lower roll bearing housing - 30, first rectangular boss - 201, second rectangular boss - 202, first end cover - 203, second end cover - 204, third end cover - 205, first sealing ring - 206, second sealing ring - 207, third sealing ring - 208. Detailed implementation mode

[0034] To further elaborate on the technical solution of the present invention, the present invention will be further described below through embodiments.

[0035] As Figures 1 to 4 shown, the vertical - horizontal coupling vibration control device of the corrugated roll mill includes a housing 1. Inside the housing 1, there is a vibration absorption container 2. Inside the vibration absorption container 2, there is a steel ball particle group 3 placed. One end of the vibration absorption container 2 is connected to one end of a return spring 4, and the other end of the return spring 4 is fixedly connected to a third base 5. The third base 5 is fixedly installed on a third slider 6. The third slider 6 is slidably arranged on a third linear guide 7. The right side of the vibration absorption container 2 is fixedly connected to the output end of a first linear motor 8. The first linear motor 8 is fixedly installed on a first base 9. The first base 9 is fixedly installed on a first slider 10. The first slider 10 is slidably arranged on a first linear guide 11. The bottom of the vibration absorption container 2 is fixedly connected to the output end of a second linear motor 12. The second linear motor 12 is fixedly installed on a second base 13. The second base 13 is fixedly installed on a second slider 14. The second slider 14 is slidably installed on a second linear guide 15. The first linear guide 11, the second linear guide 15, and the third linear guide 7 are all fixedly installed on the housing 1;

[0036] The vibration absorption container 2 is made of magnesium alloy. The steel ball particle group 3 in the vibration absorption container 2 accounts for 30%-60% of the total volume of the vibration absorption container 2. First rectangular bosses 201 and second rectangular bosses 202 are respectively machined on the front and rear end faces of the vibration absorption container 2. A first end cover 203 is installed on the first rectangular boss 201, and a second end cover 204 is installed on the second rectangular boss 202. A third end cover 205 is installed on the top of the vibration absorption container 2. A first sealing ring 206 is installed at the connection between the first end cover 203 and the first rectangular boss 201, a second sealing ring 207 is installed at the connection between the second end cover 204 and the second rectangular boss 202, and a third sealing ring 208 is installed at the connection between the third end cover 205 and the vibration absorption container 2.

[0037] The vertical-horizontal coupling vibration control system of a corrugated rolling mill includes a vertical-horizontal coupling vibration control device, a sensor mounting base 16, a laser horizontal velocity sensor 17, a laser vertical velocity sensor 18, a rolling force sensor 19, a horizontal force sensor 20, a filter 21, a computer 22, a horizontal vibration controller 23, and a vertical vibration controller 24. Switch-type magnetic seats 25 are arranged on both the left and right sides of the housing 1 in the vertical-horizontal coupling vibration control device. The vertical-horizontal coupling vibration control device is adsorbed on the upper balance beam 26 of the corrugated rolling mill through the switch-type magnetic seats 25. The upper balance beam 26 is connected to the upper roll bearing housing 27. The sensor mounting base 16 is fixedly installed on one side of the frame 29. The laser horizontal velocity sensor 17 and the laser vertical velocity sensor 18 are both installed on the sensor mounting base 16 and are respectively used for real-time online non-contact measurement of the movement velocities of the upper roll bearing housing 27 in the horizontal and vertical directions during the rolling process of the composite plate. The rolling force sensor 19 is installed between the screw-down device 28 and the upper roll bearing housing 27 and is used for real-time measurement of the rolling force in the vertical direction during the rolling process of the composite plate. Horizontal force sensors 20 are installed between the upper roll bearing housing 27 and the frame 29 and between the lower roll bearing housing 30 and the frame 29. The horizontal force sensor 20 is used for real-time measurement of the horizontal component of the rolling force during the rolling process of the composite plate. The laser horizontal velocity sensor 17, the laser vertical velocity sensor 18, the rolling force sensor 19, and the horizontal force sensor 20 are all connected to the computer 22 through the filter 21 to transmit the measured signals to the computer 22. The computer 22 calculates the vertical vibration power flow and the horizontal vibration power flow according to the measured signals. The computer 22 is connected to the horizontal vibration controller 23 and the vertical vibration controller 24 to transmit control signals to the horizontal vibration controller 23 and the vertical vibration controller 24. The horizontal vibration controller 23 and the vertical vibration controller 24 are respectively used to control the first linear motor 8 and the second linear motor 12 in the vertical-horizontal coupling vibration control device to work.

[0038] Vertical-horizontal coupling vibration control method for corrugated rolling mill. During the rolling process of composite plates, the horizontal movement speed of the upper roll bearing block 27 is measured in real time and online in a non-contact manner by a laser horizontal speed sensor 17, and the vertical movement speed of the upper roll bearing block 27 is measured in real time and online in a non-contact manner by a laser vertical speed sensor 18. The rolling force in the vertical direction during the rolling process of composite plates is measured in real time by a rolling force sensor 19, and the horizontal component of the rolling force during the rolling process of composite plates is measured in real time by a horizontal force sensor 20. The computer 22 receives the signals transmitted back by the laser horizontal speed sensor 17, the laser vertical speed sensor 18, the rolling force sensor 19, and the horizontal force sensor 20, and calculates the vertical vibration power flow and the horizontal vibration power flow. Specifically:

[0039] W 水平 = k 水平 ×F 水平 ×V 水平

[0040] Among them, W 水平 is the horizontal vibration power flow; k 水平 is the horizontal vibration influence factor;

[0041] F 水平 is the horizontal component of the rolling force obtained by online real-time measurement through the horizontal force sensor 20;

[0042] V 水平 is the horizontal movement speed of the upper roll bearing block 27 obtained by online real-time measurement through the laser horizontal speed sensor 17;

[0043] W 垂直 = k 垂直 ×F 垂直 ×V 垂直

[0044] Among them, W 垂直 is the vertical vibration power flow; k 垂直 is the vertical vibration influence factor;

[0045] F 垂直 is the rolling force obtained by online real-time measurement through the rolling force sensor 19;

[0046] V 垂直 is the vertical movement speed of the upper roll bearing block 27 obtained by online real-time measurement through the laser vertical speed sensor 18;

[0047] When W 水平 ≥W 水平0When this occurs, the computer 22 sends a control signal to the horizontal vibration controller 23, and the horizontal vibration controller 23 starts to work and sends a vibration absorption signal to the first linear motor 8, and the first linear motor 8 starts to work;

[0048] W 水平0 Set a threshold value for the vibration power flow in the horizontal direction;

[0049] When W 垂直 ≥W 垂直0 When this occurs, the computer 22 sends a control signal to the vertical vibration controller 24, and the vertical vibration controller 24 sends a vibration absorption signal to the second linear motor 12, and the second linear motor 12 starts to work;

[0050] W 垂直0 Set a threshold value for the vibration power flow in the vertical direction.

[0051] The foregoing has shown and described the main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention.

[0052] In addition, it should be understood that although this specification is described in accordance with the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. Vertical-horizontal coupling vibration control system for a corrugated rolling mill, characterized in that: It includes a vertical-horizontal coupling vibration control device, a sensor mounting base (16), a laser horizontal velocity sensor (17), a laser vertical velocity sensor (18), a rolling force sensor (19), a horizontal force sensor (20), a filter (21), a computer (22), a horizontal vibration controller (23), and a vertical vibration controller (24); The vertical-horizontal coupling vibration control device includes a housing (1). An absorption vibration container (2) is arranged inside the housing (1). The absorption vibration container (2) is made of magnesium alloy. A group of steel ball particles (3) is placed inside the absorption vibration container (2). The group of steel ball particles (3) in the absorption vibration container (2) accounts for 30%-60% of the total volume of the absorption vibration container (2). The left side of the absorption vibration container (2) is connected to one end of a return spring (4). The other end of the return spring (4) is fixedly connected to a third base (5). The third base (5) is fixedly installed on a third slider (6). The third slider (6) is slidably arranged on a third linear guide rail (7). The right side of the absorption vibration container (2) is fixedly connected to the output end of a first linear motor (8). The first linear motor (8) is fixedly installed on a first base (9). The first base (9) is fixedly installed on a first slider (10). The first slider (10) is slidably arranged on a first linear guide rail (11). The bottom of the absorption vibration container (2) is fixedly connected to the output end of a second linear motor (12). The second linear motor (12) is fixedly installed on a second base (13). The second base (13) is fixedly installed on a second slider (14). The second slider (14) is slidably installed on a second linear guide rail (15). The first linear guide rail (11), the second linear guide rail (15), and the third linear guide rail (7) are all fixedly installed on the housing (1); First rectangular bosses (201) and second rectangular bosses (202) are respectively machined on the front and rear end faces of the absorption vibration container (2). A first end cover (203) is installed on the first rectangular boss (201). A second end cover (204) is installed on the second rectangular boss (202). A third end cover (205) is installed on the top of the absorption vibration container (2). A first sealing ring (206) is installed at the connection between the first end cover (203) and the first rectangular boss (201). A second sealing ring (207) is installed at the connection between the second end cover (204) and the second rectangular boss (202). A third sealing ring (208) is installed at the connection between the third end cover (205) and the absorption vibration container (2); On both the left and right sides of the housing (1) in the vertical-horizontal coupling vibration control device, there are switch-type magnetic bases (25). The vertical-horizontal coupling vibration control device is adsorbed on the upper balance beam (26) of the corrugated rolling mill through the switch-type magnetic bases (25). The upper balance beam (26) is connected to the upper roll bearing block (27). The sensor mounting base (16) is fixedly installed on one side of the frame (29). The laser horizontal velocity sensor (17) and the laser vertical velocity sensor (18) are both installed on the sensor mounting base (16), and are respectively used for real-time online non-contact measurement of the movement velocities of the upper roll bearing block (27) in the horizontal and vertical directions during the composite plate rolling process. The rolling force sensor (19) is installed between the screwdown device (28) and the upper roll bearing block (27), and is used for real-time measurement of the rolling force in the vertical direction during the composite plate rolling process. Horizontal force sensors (20) are installed between the upper roll bearing block (27) and the frame (29) and between the lower roll bearing block (30) and the frame (29). The horizontal force sensors (20) are used for real-time measurement of the horizontal component of the rolling force during the composite plate rolling process. The laser horizontal velocity sensor (17), the laser vertical velocity sensor (18), the rolling force sensor (19), and the horizontal force sensor (20) are all connected to the computer (22) through filters (21), and are used to transmit the measured signals to the computer (22). The computer (22) calculates the vertical-direction vibration power flow and the horizontal-direction vibration power flow based on the measured signals. The computer (22) is connected to the horizontal vibration controller (23) and the vertical vibration controller (24), and is used to transmit control signals to the horizontal vibration controller (23) and the vertical vibration controller (24). The horizontal vibration controller (23) and the vertical vibration controller (24) are respectively used to control the first linear motor (8) and the second linear motor (12) in the vertical-horizontal coupling vibration control device to work.

2. The control method of the vertical-horizontal coupled vibration control system of the corrugated rolling mill according to claim 1, characterized in that: The real-time online non-contact measurement of the movement velocity of the upper roll bearing block (27) in the horizontal direction during the composite plate rolling process is carried out by the laser horizontal velocity sensor (17). The real-time online non-contact measurement of the movement velocity of the upper roll bearing block (27) in the vertical direction during the composite plate rolling process is carried out by the laser vertical velocity sensor (18). The real-time measurement of the rolling force in the vertical direction during the composite plate rolling process is carried out by the rolling force sensor (19). The real-time measurement of the horizontal component of the rolling force during the composite plate rolling process is carried out by the horizontal force sensor (20). The computer (22) receives the signals transmitted back by the laser horizontal velocity sensor (17), the laser vertical velocity sensor (18), the rolling force sensor (19), and the horizontal force sensor (20), and calculates the vertical-direction vibration power flow and the horizontal-direction vibration power flow. Specifically: W 水平 = k 水平 × F 水平 × V 水平 Among them, W 水平 is the horizontal vibration power flow; k 水平 is the horizontal vibration influence factor; F 水平 is the horizontal rolling force component obtained by online real-time measurement using the horizontal force sensor (20); V 水平 is the horizontal movement speed of the upper roll chock (27) obtained by online real-time measurement through the laser horizontal speed sensor (17); W 垂直 = k 垂直 × F 垂直 × V 垂直 Among them, W 垂直 is the vertical vibration power flow; k 垂直 is the vertical vibration influence factor; F 垂直 is the rolling force obtained by online real-time measurement using the rolling force sensor (19); V 垂直 is the vertical movement speed of the upper roll chock (27) obtained by online real-time measurement using a laser vertical velocity sensor (18). When W 水平 ≥ W 水平0 the computer (22) sends a control signal to the horizontal vibration controller (23), the horizontal vibration controller (23) starts to work and sends a vibration absorption signal to the first linear motor (8), and the first linear motor (8) starts to work; W 水平0 Set a threshold for the horizontal vibration power flow; When W 垂直 ≥W 垂直0 the computer (22) sends a control signal to the vertical vibration controller (24), the vertical vibration controller (24) sends a vibration absorption signal to the second linear motor (12), and the second linear motor (12) starts to operate; W 垂直0 Set a threshold for the vertical vibration power flow.

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