Online roller shape repairing equipment based on direct drive structure

Abstract

The invention discloses on-line roller shape repairing equipment based on a direct-drive structure, and relates to the technical field of roller repairing, the on-line roller shape repairing equipment comprises two horizontally-arranged working rollers and a linear motor, the two ends of the working rollers are installed on bearing seats, and the linear motor is provided with a grinding assembly; the linear motor is used for driving the grinding assembly to reciprocate in the length direction of the working roller. The linear motor comprises a fixed shaft and a movable shaft, the fixed shaft is parallel to the axis of the working roller, the movable shaft is arranged on the fixed shaft in a sleeving mode, the movable shaft can reciprocate in the length direction of the fixed shaft, the movable shaft cannot rotate on the fixed shaft, a coping assembly is arranged on the movable shaft, and the roller surface of the working roller is coped through the coping assembly. The online detection system is directly installed on the roller, the state of the roller can be monitored in real time, and errors caused by position changes of the roller are reduced; the mode that the grinding wheel is driven by the linear motor is adopted, and compared with a traditional motor, the occupied area of equipment is remarkably reduced.

Description

Technical Field

[0001] The invention relates to the technical field of roll repair, and in particular to a roll shape online repair device based on a direct drive structure. Background Art

[0002] Rollers are an important working part used in the metal rolling process, mainly used to deform metal materials into the desired shape and thickness by producing continuous plastic deformation. Rollers are usually made of high-strength steel to withstand high pressure and friction. The condition of the rolls directly affects the quality and production efficiency of the products, so it is very important to keep the rolls in good condition. Traditional roll inspection and repair usually rely on manual operation, which has many shortcomings, such as low inspection efficiency, large errors, high labor costs, low repair efficiency and long downtime. These problems not only increase production costs, but also reduce the production efficiency of the production line. Although the existing online detection system can improve the efficiency of detection and monitor the status of the roll in real time through the detection system, and promptly discover potential faults and wear conditions, the existing online detection system is usually installed on the roll frame. Once the position between the roll frame and the roll changes, it is easy to cause inaccurate detection. In addition, the drive of the roll repair equipment usually adopts traditional motors, which occupy a large area and limit the layout flexibility of the equipment. In order to improve the intelligence and efficiency of roll repair, it is necessary to design a new type of roll shape online repair equipment that can optimize space occupancy while ensuring high-precision detection. Summary of the invention

[0003] In view of the above technical problems, the technical solution adopted by the present invention is: an online repair device for the roll shape of a rolling mill based on a direct drive structure, comprising two horizontally arranged working rolls, both ends of the working rolls being installed on bearing seats, and also comprising a linear motor, on which a grinding assembly is arranged, and the linear motor is used to drive the grinding assembly to reciprocate along the length direction of the working roll; the linear motor comprises a fixed shaft and a movable shaft, the fixed shaft is arranged parallel to the axis of the working roll, a movable shaft is sleeved on the fixed shaft, the movable shaft can reciprocate along the length direction of the fixed shaft, and the movable shaft cannot rotate on the fixed shaft, a grinding assembly is arranged on the movable shaft, and the grinding assembly is driven to move by the movable shaft to grind the roll surface of the working roll.

[0004] Furthermore, the grinding assembly includes a rotary motor, which is fixedly mounted on a moving shaft, a grinding wheel is fixedly mounted on an output end of the rotary motor, and a grinding wheel protective cover is arranged on the outer side of the grinding wheel.

[0005] Furthermore, a slide groove 1 is provided on the bearing seat, and the slide groove 1 is a rectangular slide groove. A slider 1 is slidably installed in the slide groove 1. The slider 1 is fixedly installed on the fixed shaft. The slider 1 is also connected to the linear motion component. The slider 1 is driven by the linear motion component to slide in the slide groove 1, and the slider 1 drives the fixed shaft to move, so that the grinding wheel and the working roller are fitted.

[0006] Furthermore, the linear motion assembly includes an oil cylinder, and a telescopic rod of the oil cylinder is connected to a slide block 1, thereby driving the slide block 1 to slide in a slide groove 1.

[0007] Furthermore, the linear motion assembly includes a slider, the slider and slider one are fixedly installed, the slider is slidably installed on the linear guide rail, and the slider is also threadedly installed with the lead screw. The slider is driven to slide in the linear guide rail by the rotation of the lead screw, thereby driving slider one to slide in slide groove one.

[0008] Furthermore, a second slide groove is provided in the length direction of the fixed shaft, the shape of the second slide groove is straight, the length of the second slide groove is greater than the length of the roller surface of the working roll, a limit block is slidably installed in the second slide groove, and the limit block is fixedly installed on the moving shaft.

[0009] Furthermore, a grinding wheel grinding device is provided on the bearing seat, and the grinding wheel is ground by the grinding wheel grinding device.

[0010] Furthermore, it also includes an online detection system, through which the surface shape of the working roll is detected. The online detection system includes a positioning component and a linear detection module, and the positioning component is provided with a linear detection module.

[0011] Furthermore, the positioning assembly includes a support seat, which is arranged at both ends of the working roll, one end of the support seat is coaxially arranged with the working roll, and the support seat is sleeved on the working roll, a limiting hole is arranged on the support seat, and a limiting hole is also arranged on the bearing seat, and a limiting rod is installed in the limiting hole of the support seat and the limiting hole of the bearing seat, and the limiting rod runs through the limiting hole of the bearing seat and the limiting hole of the support seat, and the support seat is positioned by the limiting rod to prevent the support seat from rotating on the working roll, and the support seats at both ends of the working roll are connected by a crossbeam.

[0012] Furthermore, the linear detection module includes a transverse movement component, on which a laser displacement sensor is provided. The transverse movement component is used to drive the laser displacement sensor to move horizontally, so as to detect the shape of the working roll through the laser displacement sensor.

[0013] Compared with the prior art, the present invention has the following advantages: (1) the present invention directly installs the online detection system on the roller, which can monitor the status of the roller in real time, reduce the error caused by the change of the roller position, and significantly improve the detection accuracy; (2) the present invention adopts a linear motor to drive the grinding wheel to move, which significantly reduces the footprint of the equipment compared to the traditional motor, making the layout of the equipment at the rolling site more flexible; (3) the present invention has the function of automatic detection and repair, reduces the need for manual intervention, improves the safety and reliability of operation, and can quickly repair the roller by accurately controlling the position and movement trajectory of the grinding wheel, thereby shortening the downtime and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the online roller shape repairing equipment based on the direct drive structure of the present invention.

[0015] Figure 2 It is a top view of the overall structure of the online roller shape repair equipment based on the direct drive structure of the present invention.

[0016] Figure 3 The local structure of the roll shape online repairing device based on the direct drive structure of the present invention is shown in FIG. Figure 1 .

[0017] Figure 4 The local structure of the roll shape online repairing device based on the direct drive structure of the present invention is shown in FIG. Figure 2 .

[0018] Figure 5 The local structure of the roll shape online repairing device based on the direct drive structure of the present invention is shown in FIG. Figure 3 .

[0019] Figure 6 for Figure 5 A partial enlarged view of point A in the middle.

[0020] Figure numerals: 101-bearing seat; 102-slideway one; 2-working roller; 301-slider one; 302-fixed shaft; 303-grinding wheel protection cover; 304-moving shaft; 305-rotating motor; 306-grinding wheel; 307-limiting block; 308-slideway two; 401-support seat; 402-crossbeam; 403-slider two; 404-laser displacement sensor; 405-limiting rod; 406-transverse guide rail; 5-grinding wheel grinding device. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods. Embodiment 1

[0022] like Figure 1-Figure 6The roll shape online repairing equipment based on the direct drive structure shown includes two horizontally arranged working rolls 2, which are arranged up and down, and both ends of each working roll 2 are installed on the bearing seat 101, and the bearing seat 101 is installed on the frame. The two working rolls 2 are connected to the power mechanism, and the two working rolls 2 are driven to rotate by the power mechanism to roll the workpiece. A linear motor is arranged between the bearing seats 101 at both ends of each working roll 2, and a grinding assembly is arranged on the linear motor. The linear motor is used to drive the grinding assembly to reciprocate along the length direction of the working roll 2, so as to grind different positions on the surface of the working roll 2.

[0023] The linear motor includes a fixed shaft 302 and a movable shaft 304. The fixed shaft 302 is arranged parallel to the axis of the working roll 2. The fixed shaft 302 is in the shape of a round rod. The movable shaft 304 is sleeved on the fixed shaft 302. A second slide groove 308 is arranged in the length direction of the fixed shaft 302. The second slide groove 308 is located on the circumference of the fixed shaft. The shape of the second slide groove 308 is linear. The movable shaft 304 is an annular structure. A limit block 307 is arranged on the inner ring of the fixed shaft 302. The limit block 307 is slidably matched with the second slide groove 308, so that the movable shaft 304 can reciprocate along the length direction of the fixed shaft 302, and the movable shaft 304 cannot rotate on the fixed shaft 302. The moving shaft 304 is provided with a grinding assembly, and the roller surface of the working roll 2 is ground by the grinding assembly; the linear motor is started to make the moving shaft 304 slide on the fixed shaft 302, and the limit block 307 slides and cooperates in the second slide groove 308 to prevent the moving shaft 304 from rotating, and the moving shaft 304 drives the grinding assembly to move, and the working roll 2 is ground at different positions by the grinding assembly; the linear motor is used to drive the grinding assembly to move back and forth, compared with the traditional motor that needs to be connected to the mechanical structure to drive the grinding assembly to move back and forth, the equipment footprint is significantly reduced, making the layout of the equipment at the rolling site more flexible and convenient.

[0024] A slide groove 102 is arranged on the bearing seat 101, and the slide groove 102 is a rectangular slide groove. A slider 301 is slidably installed in the slide groove 102, and the slider 301 cannot be separated from the slide groove 102 (a baffle can be arranged on the side of the slide groove 102 to prevent the slider 301 from being separated from the slide groove 102). The slider 301 and the fixed shaft 302 are fixedly installed, and the slider 301 is also connected to the linear motion component; the slider 301 is driven by the linear motion component to slide in the slide groove 102, so that the grinding wheel 306 and the working roller 2 are fitted together, so as to facilitate the grinding of the working roller 2.

[0025] The linear motion assembly includes a cylinder, which is arranged on a bearing seat 101, and is arranged horizontally. The telescopic rod of the cylinder is connected to a slider 301. When the cylinder is started, the telescopic rod of the cylinder drives the slider 301 to slide in a slide groove 102, and the slider 301 drives the linear motor and the grinding assembly to move, thereby adjusting the distance between the grinding assembly and the working roller 2.

[0026] The grinding assembly includes a rotary motor 305 and a grinding wheel 306. The rotary motor 305 is fixedly mounted on the driving shaft 304. The grinding wheel 306 is fixedly mounted on the output end of the rotary motor 305. The axis of the grinding wheel 306 is parallel to the axis of the working roller 2. When the rotary motor 305 is started, the output end of the rotary motor 305 drives the grinding wheel 306 to rotate, and the surface of the working roller 2 is ground by the grinding wheel 306.

[0027] A grinding wheel protection cover 303 is provided on the outer side of the grinding wheel 306 , and the grinding wheel protection cover 303 is fixedly mounted on the moving shaft 304 ; by providing the grinding wheel protection cover 303 , grinding debris can be prevented from splashing around.

[0028] A grinding wheel dressing device 5 is provided on the bearing seat 101 , and the grinding wheel 306 is dressed by the grinding wheel dressing device 5 .

[0029] An online detection system is provided on the working roll 2, and the surface shape of the working roll 2 is detected by the online detection system.

[0030] The online detection system includes a positioning component and a linear detection module. The positioning component is installed on the working roll 2, and the linear detection module is arranged on the positioning component.

[0031] The positioning assembly includes a support seat 401, a crossbeam 402 and a limit rod 405. The support seat 401 is arranged at both ends of the working roll 2. One end of the support seat 401 is coaxially arranged with the working roll 2, and one end of the support seat 401 is sleeved on the working roll 2. The support seats 401 at both ends of the working roll 2 are connected together through the crossbeam 402. The crossbeam 402 is arranged parallel to the roll. A limit hole is arranged on the support seat 401, and a limit hole is also arranged on the bearing seat 101. The limit rod 405 is installed in the limit hole of the bearing seat 101 and the support seat 40 1, the support seat 401 is positioned by the limiting rod 405 to prevent the support seat 401 from rotating on the working roll 2; by directly installing the support seat 401 on the working roll 2, even when the position of the bearing seat 101 changes, the distance between the crossbeam 402 on the support seat 401 and the working roll 2 can be kept unchanged, so that the distance between the linear detection module on the crossbeam 402 and the working roll 2 remains unchanged, thereby reducing the error caused by the change of the position of the bearing seat 101 and significantly improving the detection accuracy.

[0032] The linear detection module includes a transverse movement component and a laser displacement sensor 404. The transverse movement component is arranged on the crossbeam 402. The laser displacement sensor 404 is arranged on the transverse movement component. The transverse movement component is used to drive the laser displacement sensor 404 to move along the length direction of the working roller 2, so as to detect the roller surface of the working roller 2 through the laser displacement sensor 404. The specific detection process is: the laser displacement sensor 404 emits a laser, the laser hits the surface of the working roller 2, and is received by the receiver. According to the laser propagation speed and time, the shape of the working roller 2 and the position coordinates that need to be ground can be calculated.

[0033] The transverse movement assembly includes a transverse movement motor, a transverse movement screw, a second slider 403 and a transverse movement guide rail 406. The transverse movement motor is fixedly installed on the crossbeam 402. The output shaft of the transverse movement motor and the transverse movement screw are fixedly installed. The transverse movement screw and the crossbeam 402 are arranged in parallel. The transverse movement screw and the second slider 403 are threadedly installed. A laser displacement sensor 404 is fixedly installed on the second slider 403. The second slider 403 is slidably installed on the transverse movement guide rail 406, and the transverse movement guide rail 406 is fixedly installed on the crossbeam 402. Start the transverse movement motor, the output shaft of the transverse movement motor drives the transverse movement screw to rotate, the transverse movement screw drives the second slider 403 to slide on the transverse movement guide rail 406, and the second slider 403 drives the laser displacement sensor 404 to move along the length direction of the working roller 2, and cooperates with the rotation of the working roller 2, so as to detect the entire roller surface of the working roller 2. Embodiment 2

[0034] The linear motion assembly includes a slider, a linear guide, a lead screw and a motor. The slider and slider 301 are fixedly installed, the slider is slidably installed on the linear guide, the linear guide is horizontally arranged, the linear guide is fixedly installed on the bearing seat 101, the slider is also threadedly installed with the lead screw, and the lead screw and the output shaft of the motor are fixedly installed; start the motor, the motor drives the lead screw to rotate, the lead screw drives the slider to slide in the linear guide, the slider drives the slider 301 to move, thereby driving the linear motor on the slider 301 to move, and the linear motor drives the grinding wheel 306 to move, thereby adjusting the distance between the grinding wheel 306 and the working roller 2, and grinding the working roller 2; the remaining structures of this embodiment are exactly the same as those of embodiment 1, and are not repeated here.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A roll profile online repair device based on a direct drive structure, comprising two horizontally arranged working rolls (2), both ends of the working rolls (2) being mounted on bearing seats (101), characterized in that: It also includes a linear motor, on which a grinding assembly is provided, and the linear motor is used to drive the grinding assembly to reciprocate along the length direction of the working roller (2); The linear motor comprises a fixed shaft (302) and a movable shaft (304), wherein the fixed shaft (302) is arranged parallel to the axis of the working roller (2), the movable shaft (304) is sleeved on the fixed shaft (302), the movable shaft (304) is capable of reciprocating along the length direction of the fixed shaft (302), and the movable shaft (304) cannot rotate on the fixed shaft (302), and a grinding assembly is arranged on the movable shaft (304), and the grinding assembly is driven to move by the movable shaft (304) to grind the roller surface of the working roller (2).

2. The roll profile online repairing device based on direct drive structure according to claim 1 is characterized in that: The grinding assembly comprises a rotary motor (305), the rotary motor (305) being fixedly mounted on a movable shaft (304), a grinding wheel (306) being fixedly mounted on an output end of the rotary motor (305), and a grinding wheel protective cover (303) being provided on the outer side of the grinding wheel (306).

3. The roll profile online repairing device based on direct drive structure according to claim 1 is characterized in that: The bearing seat (101) is provided with a slide groove (102), and the slide groove (102) is a rectangular slide groove. A slider (301) is slidably installed in the slide groove (102). The slider (301) and the fixed shaft (302) are fixedly installed. The slider (301) is also connected to a linear motion component. The linear motion component drives the slider (301) to slide in the slide groove (102), and the slider (301) drives the fixed shaft (302) to move, so that the grinding wheel (306) and the working roller (2) are in contact with each other.

4. The roll profile online repairing device based on the direct drive structure according to claim 3 is characterized in that: The linear motion assembly includes an oil cylinder, and the telescopic rod of the oil cylinder is connected to the slider one (301), thereby driving the slider one (301) to slide in the slide groove one (102).

5. The roll profile online repairing device based on direct drive structure according to claim 3 is characterized in that: The linear motion assembly includes a slider, the slider and slider one (301) are fixedly installed, the slider is slidably installed on the linear guide rail, and the slider is also threadedly installed with the lead screw. The slider is driven to slide in the linear guide rail by the rotation of the lead screw, thereby driving slider one (301) to slide in the slide groove one (102).

6. The roll profile online repairing device based on direct drive structure according to claim 1 is characterized in that: A second slide groove (308) is provided in the length direction of the fixed shaft (302), the shape of the second slide groove (308) is linear, the length of the second slide groove (308) is greater than the length of the roller surface of the working roller (2), and a limit block (307) is slidably installed in the second slide groove (308), and the limit block (307) is fixedly installed on the movable shaft (304).

7. The roll profile online repairing device based on direct drive structure according to claim 1 is characterized in that: A grinding wheel grinding device (5) is also provided on the bearing seat (101), and the grinding wheel (306) is ground by the grinding wheel grinding device (5).

8. The roll profile online repairing device based on direct drive structure according to claim 1 is characterized in that: It also includes an online detection system, through which the surface shape of the working roller (2) is detected. The online detection system includes a positioning component and a linear detection module, and the positioning component is provided with a linear detection module.

9. The roll profile online repairing device based on a direct drive structure according to claim 8, characterized in that: The positioning assembly comprises a support seat (401), the support seat (401) being arranged at both ends of the working roll (2), one end of the support seat (401) being coaxially arranged with the working roll (2), and the support seat (401) being sleeved on the working roll (2), a limiting hole being arranged on the support seat (401), and a limiting hole being also arranged on the bearing seat (101), a limiting rod (405) being installed in the limiting hole of the support seat (401) and the limiting hole of the bearing seat (101), and the limiting rod (405) being passed through the limiting hole of the bearing seat (101) and the limiting hole of the support seat (401), the support seat (401) being positioned by the limiting rod (405) to prevent the support seat (401) from rotating on the working roll (2), and the support seats (401) at both ends of the working roll (2) being connected via a crossbeam (402).

10. The roll profile online repairing device based on a direct drive structure according to claim 9, characterized in that: The linear detection module comprises a transverse movement component, on which a laser displacement sensor (404) is provided. The transverse movement component is used to drive the laser displacement sensor (404) to move horizontally, thereby detecting the shape of the working roller (2) through the laser displacement sensor (404).

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