Side roller surface treatment and flaw detection device for roller

Abstract

The side roller surface treatment and flaw detection device comprises a supporting roller set, a surface grinding mechanism and a flaw detection mechanism, the surface grinding mechanism and the flaw detection mechanism are arranged on a movable support, the supporting roller set supports and drives the roller to rotate, and the surface grinding mechanism comprises an abrasive belt grinding machine and an angle adjusting mechanism. An adjusting roller set of the angle adjusting mechanism is composed of two adjacent adjusting rollers, the two ends of the adjusting roller set are connected with the lifting mechanism, and the abrasive belt penetrates between the two adjusting rollers. The flaw detection mechanism comprises a belt moving device and a flaw detection head, the belt moving device comprises a driving wheel, a driven wheel and a driving belt, the flaw detection head is connected with the driving belt through a grooved wheel and moves along with the driving belt, the distance between the driven wheel and the driving wheel is adjustable, one end of the driving wheel is provided with a deflector rod, and when the grooved wheel reaches the side of the driving wheel, the deflector rod shifts the grooved wheel to rotate the flaw detection head. According to the invention, the detection surface of the large roller can be comprehensively polished, and comprehensive flaw detection can be realized.

Description

Technical Field

[0001] The invention relates to a roller surface treatment and flaw detection device, belonging to the technical field of mechanical processing. Background Art

[0002] With the continuous development of modern machinery manufacturing industry, large-scale rollers have become an important part of the steel industry. Generally, large-scale rollers work under hot and cold rolling conditions. The working surface is subjected to great contact stress, shear stress and periodic bending stress. Uneven wear, fatigue cracks, peeling, indentation and rapid peeling often occur on the surface. When the damage is serious, the shoulder will fall off and large pieces will peel off, which will seriously affect production safety and product quality. If it is not repaired in time, it will cause serious production accidents and cause the rollers to be scrapped. If the replaced scrap rollers are not regularly repaired and maintained, the surface of the rollers is very easy to rust, and quality problems may also occur inside. For the recycling and reuse of large scrap rollers, the roller sleeve is generally repaired by inserting the sleeve. Before inserting the sleeve, the surface of the roller needs to be derusted and polished, and it needs to be inspected by flaw detection to ensure its quality and performance.

[0003] For contact flaw detection, surface treatment is mainly to minimize the impact of rust on the surface of the roll on the internal detection results, while reducing the wear of the surface contact probe. In actual production workshops, the surface treatment of large scrap rolls is often not able to fully and effectively remove rust and polish. In most cases, only some of the parts that need to be inspected are manually polished and then randomly sampled, which is inefficient and the number of sampling is limited, affecting the actual detection accuracy.

[0004] Therefore, it is necessary to design a structure that can comprehensively grind the parts of the roller that need to be inspected and perform rapid and comprehensive sampling and inspection, especially for the rounded corners of the side rollers. In the actual inspection process, multi-point sampling is limited by factors such as the height size and placement of the rollers, making it more difficult to conduct all-round inspections, and the accuracy of the results cannot be guaranteed. Summary of the invention

[0005] In view of the above-mentioned defects of the prior art, the present invention provides a side roller surface treatment and flaw detection device for a rolling mill, which realizes automatic comprehensive grinding of the rolling mill surface and comprehensive flaw detection including the rounded corners of the side roller.

[0006] The technical solution of the present invention is as follows: a side roller surface treatment and flaw detection device for a rolling mill, comprising a support roller group, a surface grinding mechanism and a flaw detection mechanism; the support roller group is used to support the rolling mill and drive the rolling mill to rotate, the surface grinding mechanism and the flaw detection mechanism are respectively arranged on a movable bracket, the surface grinding mechanism comprises a belt grinder and an angle adjustment mechanism, the angle adjustment mechanism comprises at least one adjustment roller group, the adjustment roller group comprises two adjacent adjustment rollers, the two ends of the adjustment roller are connected to a lifting mechanism, the belt of the belt grinder is passed through the two adjustment rollers The rollers are arranged between the rollers, and the lifting mechanism adjusts the positions of the two ends of the adjustment roller to change the angle between the surface of the sand belt and the surface of the roller; the flaw detection mechanism includes a belt moving device and a flaw detection head, and the belt moving device includes a driving wheel, a driven wheel and a driving belt, and the driving belt is arranged around the driving wheel and the driven wheel. The flaw detection head is connected to the driving belt through a groove wheel and moves with the driving belt. The distance between the driven wheel and the driving wheel is adjustable. A plurality of shifting rods are arranged at one end of the driving wheel. When the groove wheel moves to one side of the driving wheel, the shifting rod shifts the groove wheel to rotate and drives the flaw detection head to rotate.

[0007] Furthermore, the side roller surface treatment and flaw detection device for the rolling mill comprises a circulating track arranged on the ground, and the movable bracket moves along the circulating track.

[0008] Furthermore, the movable bracket is provided with a locking support leg for locking with the circulating track.

[0009] Furthermore, two adjustment roller groups are provided, and the two adjustment roller groups are respectively located on both sides of the rolling roller. A translation mechanism is provided on the movable bracket, and the translation mechanism is connected to the lifting mechanism to drive the lifting mechanism to move.

[0010] Further, the translation mechanism drives the lifting mechanism to move in the horizontal direction, and the lifting mechanism drives the roller end of the adjustment roller to move in the vertical direction.

[0011] Furthermore, the adjustment roller is perpendicular to the moving direction of the abrasive belt.

[0012] Furthermore, in order to facilitate the adjustment of the moving direction of the flaw detection head so that it can be adjusted according to the side roller surface angles of different rolling mill rollers, the belt moving device includes an adjusting wheel, and the adjusting wheel is arranged between the driving wheel and the driven wheel. The two ends of the adjusting wheel are movably arranged on an adjusting bracket, and the adjusting wheel changes the axial angle between the driving belt and the rolling mill roller when it moves.

[0013] Furthermore, the belt moving device is provided with a base, the base is provided with a slope surface inclined downward toward the driving wheel, the driven wheel is arranged on a wedge block that slides with the slope surface, the wedge block is provided with a foldable operating rod, the base is provided with a slot that cooperates with the operating rod, and when the operating rod is engaged in the slot, the wedge block is prevented from moving on the slope surface.

[0014] Furthermore, a lifting bracket is provided on the movable bracket, the base with the movable device is arranged on the lifting bracket, and an adjusting device for adjusting the distance between the base and the roller is provided between the base and the lifting bracket.

[0015] Furthermore, an oiling device which moves synchronously with the driving belt is provided on a side of the driving belt facing the roller, and the oiling device comprises an oil groove and a roller brush, the oil groove is provided with an oil dripping hole, and the roller brush is located below the oil dripping hole.

[0016] Compared with the prior art, the advantages of the technical solution provided by the present invention are: The present invention integrates the surface treatment before flaw detection with the flaw detection function through separate surface grinding mechanisms and flaw detection mechanisms, and can realize the integration of surface grinding and subsequent flaw detection work for the entire side roller part. Different from the traditional multi-point random sampling detection, the flaw detection mechanism can realize more efficient and comprehensive detection, especially for the rounded corners of large rollers, and realize the detection of the entire circle without dead angles.

[0017] This invention can effectively save processing space. After the grinding work is completed, the mobile bracket can be turned around. The movement is convenient and fast controlled by the circular track. The flaw detection work can be carried out immediately and the detection accuracy is improved. It has the advantages of compact structure, stable support, easy adjustment, and can adapt to large rollers of various specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the side roll surface treatment and flaw detection device used for the rolling mill.

[0019] Figure 2 It is a schematic diagram of the main structure of the support roller group, rolling roller and surface grinding mechanism.

[0020] Figure 3 It is a side view structural diagram of the support roller group, rolling roller and surface grinding mechanism.

[0021] Figure 4 It is a schematic diagram of the structure of the adjustment roller group.

[0022] Figure 5 This is a schematic diagram of the structure of the flaw detection mechanism and the roller (I).

[0023] Figure 6This is a schematic diagram of the structure of the flaw detection mechanism and the roller (II).

[0024] Figure 7 It is a structural schematic diagram of the base and lifting bracket of the flaw detection mechanism.

[0025] Figure 8 This is a schematic diagram of the connection structure between the flaw detection head and the groove wheel.

[0026] Fig. 9 It is a structural schematic diagram of the oiling device. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with examples. It should be understood that these examples are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading this description, various equivalent modifications to this description by those skilled in the art fall within the scope defined by the claims attached to this application.

[0028] Please combine Figure 1 As shown, the side roller surface treatment and flaw detection device for a rolling mill in this embodiment mainly comprises a support roller group 1, a surface grinding mechanism 2 and a flaw detection mechanism 3. The support roller group 1 is composed of support rollers 101 arranged side by side on the left and right sides, and the distance between the arranged support rollers 101 is controlled appropriately to ensure that the rolling mill 4 to be treated can be stably supported on the support roller group 1. The support roller 101 on one side of the support roller group 1 is driven by a motor to rotate, thereby driving the rotation of the large rolling mill 4.

[0029] The surface grinding mechanism 2 and the flaw detection mechanism 3 are respectively arranged on a mobile bracket 5, and the mobile bracket 5 drives the surface grinding mechanism 2 and the flaw detection mechanism 3 to move to the roller 4 to perform surface treatment and flaw detection on the roller 4. The separate mobile bracket 5 enables the surface grinding mechanism 2 and the flaw detection mechanism 3 to work at different positions of the roller 4. In order to facilitate the control of the surface grinding mechanism 2 and the flaw detection mechanism 3 and reduce the adjustment operation of the surface grinding mechanism and the flaw detection mechanism 3. A circulating track 11 is arranged on the ground, one section of which is arranged at the position of the support roller group 1, and the circulating track 11 is also provided with a branch track 1101, so that the position of the mobile bracket 5 can be adjusted conveniently.

[0030] The mobile bracket 5 is formed by welding a hollow truss, and a retractable locking support leg 501 is also installed on the mobile bracket 5. The four feet of the mobile bracket 5 are provided with pulleys that cooperate with the circulating track 11, and the mobile bracket 5 can slide on the circulating track 11. After reaching the predetermined position, the mobile bracket 5 can be fixed by locking the locking support leg 501 with the circulating track 11, and the locking method includes but is not limited to tightening with bolts.

[0031] Further integration Figures 2 to 4As shown, a surface grinding mechanism 2 is arranged on a mobile bracket 5, and the surface grinding mechanism 2 includes a belt grinder and an angle adjustment mechanism, wherein the angle adjustment mechanism is used to adjust the angle of the belt 201, so that the angle between the surface of the belt 201 and the surface of the roller 4 changes, adapts to the taper of the side roller of the roller 4, and performs better grinding. In this embodiment, in order to make the control position of the angle adjustment mechanism when adjusting the surface angle of the belt 201 adjustable, the surface grinding mechanism 2 is also provided with a translation mechanism 203. Specifically, the belt grinder includes a belt transmission wheel 202 located on both sides of the mobile bracket, and the belt 201 is wound around the belt transmission wheel 202. The belt 201 is moved by the rotation of the belt transmission wheel 202 to achieve the grinding effect. The translation mechanism 203 can be, for example, a screw transmission mechanism, whose servo motor is installed on the upper support beam of the mobile bracket 5, and whose screw is installed on the top of the mobile bracket 5. Two translation mechanisms 203 are provided, and the screw rods of the two translation mechanisms 203 respectively drive a set of lifting mechanisms 204 to move horizontally to the left and right to adjust the relative position with the roller 4. Each set of lifting mechanisms 204 includes two front and rear lifting mechanisms 204, and the lifting mechanisms 204 are set to lift in the vertical direction, and the lifting mechanisms 204 are used to drive and adjust the inclination of the roller group. The lifting end of the lifting mechanism 204 is connected to the adjustment roller group through a universal joint mechanism, and the adjustment roller group includes two upper and lower adjacent adjustment rollers 205, and the adjustment rollers 205 are perpendicular to the moving direction of the abrasive belt 201, and the abrasive belt 201 of the abrasive belt grinder is inserted between the two adjustment rollers 205. In this way, when two lifting mechanisms 204 in a set of lifting mechanisms 204 are lifted or lowered, the height of the front and rear ends of the two adjustment rollers 205 in the adjustment roller group can be controlled, so that the adjustment roller group is tilted forward and backward, that is, the gap between the two adjustment rollers 205 is tilted forward and backward, and then the abrasive belt 201 is tilted to be consistent with the taper of the side roller to fit the side roller surface of the roller 4, so as to achieve full grinding. The adjustment roller 205 is set perpendicular to the moving direction of the abrasive belt 201, which makes it easier to control the tilt angle of the abrasive belt 201. The lifting mechanism 204 cooperates with the movement of the translation mechanism 203 to adapt to the surface grinding treatment of rollers 4 of different sizes.

[0032] Please combine Figures 5 to 9As shown, a lifting bracket 6 is provided on the movable bracket 5 on which the flaw detection mechanism 3 is arranged, and the two ends of the lifting bracket 6 are slidably arranged along the columns of the movable bracket 5. A small winch 7 is arranged on the top of the movable bracket 5, and the lifting bracket 6 is driven to rise and fall by the operation of the winch 7. The flaw detection mechanism 3 includes a belt moving device and a flaw detection head 301, wherein the belt moving device includes a driving wheel 302, an adjusting wheel 303, a driven wheel 304, a driving belt 305 and a base 306. The base 306 of the belt moving device is arranged on the top surface of the lifting bracket 6, and an adjusting device for adjusting the distance between the base 306 and the roller 4 is arranged between the base 306 and the lifting bracket 6. The adjusting device is, for example, an adjusting screw 307 and the base 306 to form a threaded transmission so that the base 306 moves on the top surface of the lifting bracket 6, and adjusts the distance between the base 306 and the roller 4 in the transverse direction.

[0033] The rotation axes of the driving wheel 302, the adjusting wheel 303, and the driven wheel 304 are all in the vertical direction and are installed on the base 306. The driving motor 308 drives the driving wheel 302 to rotate through the gears. The driving belt 305 is sequentially wound around the driving wheel 302, the adjusting wheel 303, and the driven wheel 304. The driving belt 305 is driven to move by the rotation of the driving wheel 302. The adjusting wheel 303 is arranged between the driving wheel 302 and the driven wheel 304. An adjusting bracket 309 is arranged on the base 306. The adjusting bracket 309 is provided with a slide rail 309a. The upper and lower ends of the adjusting wheel 303 are movably arranged on the slide rail 309a and can be fixed as needed. In this way, the angle between the driving belt 305 and the axial direction of the roller 4 can be adjusted by changing the position of the adjusting wheel 303. The flaw detection head 301 is installed on the driving belt 305. Therefore, the change in the angle of the driving belt 305 can make the flaw detection head 301 better fit the roller 4 to complete the detection.

[0034] The base 306 is provided with a slope 306a that is inclined downward toward the driving wheel 302, and the driven wheel 304 is arranged on a wedge 310 that is slidably matched with the slope 306a. The wedge 310 is provided with a foldable operating rod 311, and the base 306 is provided with a clamping groove 306b that is matched with the operating rod 311. When the operating rod 311 is clamped in the clamping groove 306b, the wedge 310 can be prevented from moving on the slope 306a, thereby fixing the distance between the driving wheel 302 and the driven wheel 304, so that the driving belt 305 can move under the drive of the driving wheel 302 and the driven wheel 304. When the driving belt 305 needs to stop moving, the operating rod 311 is lifted to disengage it from the card slot 306b, and the wedge block 310 slides on the slope 306a toward the driving wheel 302, and the distance between the driven wheel 304 and the driving wheel 302 is reduced, and the driving belt 305 cannot be driven by the driving wheel 302 and the driven wheel 304 and stops moving. Since the driving wheel 302 needs to rotate all the time to drive the flaw detection head 301 to rotate to realize the detection of the rounded corner area of ​​the side roller, the intermittent change of the drive is realized in this way.

[0035] Specifically, the structure of the driving wheel 302 driving the flaw detection head 301 to rotate is as follows: a connecting seat 312 is fixed on the driving belt 305, and a groove wheel 313 is rotatably connected to the top surface of the connecting seat 312. The groove wheel 313 is processed with an inner gear ring, and the center of the inner gear ring is set to the sun gear 314. A planetary gear 315 with a fixed position is set between the sun gear 314 and the inner gear ring, and the flaw detection head 301 is installed on the sun gear 314. A plurality of levers 302a are set on the top of the driving wheel 302. When the groove wheel 313 moves to the driving wheel 302 along with the driving belt 305, the driving belt 305 stops moving by operating the aforementioned operating lever 311. The rotation of the driving wheel 302 causes the lever 302a to intermittently engage in the groove of the groove wheel 313, driving the groove wheel 313 to rotate. The rotation of the groove wheel 313 further drives the flaw detection head 301 to rotate in situ. The planetary gear mechanism composed of the groove wheel 313, the sun gear 314 and the planetary gear 315 makes the rotation direction of the flaw detection head 301 and the driving belt 305 the same, thereby completing the detection of the opposite side roller.

[0036] The side of the driving belt 305 facing the roller 4 is provided with an oiling device that moves synchronously with the driving belt 305. The oiling device includes an oil tank 8 and a roller brush 9. The bottom surface of the oil tank 8 is provided with a narrow and long oil dripping hole, and the inner walls around it are inclined inward to facilitate the oil to slide down. The roller brush 9 is located below the oil dripping hole. After the lubricating oil enters the oil tank 8, it evenly infiltrates the roller brush below from the oil dripping hole. There is also a rubber scraper 10 under the roller brush 9 to make the oil that is not evenly coated by the roller brush 9 evenly coated for the second time, so as to ensure that the surface of the side roller is covered with oil as much as possible, so that the oiling maintenance is completed while the inspection is completed.

Claims

1. A side roller surface treatment and flaw detection device for a rolling mill, characterized in that: The invention comprises a supporting roller group, a surface grinding mechanism and a flaw detection mechanism; the supporting roller group is used to support the roller and drive the roller to rotate, the surface grinding mechanism and the flaw detection mechanism are respectively arranged on a movable bracket, the surface grinding mechanism comprises a belt grinder and an angle adjustment mechanism, the angle adjustment mechanism comprises at least one adjusting roller group, the adjusting roller group comprises two adjacent adjusting rollers, the two ends of the adjusting roller are connected to the lifting mechanism, the abrasive belt of the belt grinder is passed through the two adjusting rollers, the lifting mechanism adjusts the positions of the two ends of the adjusting roller to change the angle between the abrasive belt surface and the roller surface; the flaw detection mechanism comprises a belt moving device and a flaw detection head, the belt moving device comprises a driving wheel, a driven wheel and a driving belt, the driving belt is arranged around the driving wheel and the driven wheel, the flaw detection head is connected to the driving belt through a groove wheel and moves with the driving belt, the distance between the driven wheel and the driving wheel is adjustable, one end of the driving wheel is provided with a plurality of levers, when the groove wheel moves to one side of the driving wheel, the lever drives the groove wheel to rotate and drives the flaw detection head to rotate.

2. The side roll surface treatment and flaw detection device for a rolling mill according to claim 1, characterized in that: The side roll surface treatment and flaw detection device for a rolling mill comprises a circulating track arranged on the ground, and the movable bracket moves along the circulating track.

3. The side roll surface treatment and flaw detection device for a rolling mill according to claim 2, characterized in that: The movable bracket is provided with a locking support leg for locking with the circulating track.

4. The side roll surface treatment and flaw detection device for a rolling mill according to claim 1, characterized in that: There are two adjustment roller groups, which are respectively located on both sides of the roller. A translation mechanism is arranged on the movable bracket, and the translation mechanism is connected with the lifting mechanism to drive the lifting mechanism to move.

5. The side roll surface treatment and flaw detection device for a rolling mill according to claim 4, characterized in that: The translation mechanism drives the lifting mechanism to move in the horizontal direction, and the lifting mechanism drives the roller end of the adjustment roller to move in the vertical direction.

6. The side roll surface treatment and flaw detection device for a rolling mill roll according to any one of claims 1 to 5, characterized in that: The adjusting roller is perpendicular to the moving direction of the abrasive belt.

7. The side roll surface treatment and flaw detection device for a rolling mill according to claim 1, characterized in that: The belt moving device comprises an adjusting wheel, which is arranged between the driving wheel and the driven wheel. Both ends of the adjusting wheel are movably arranged on an adjusting bracket. When the adjusting wheel moves, the axial angle between the driving belt and the roller is changed.

8. The side roll surface treatment and flaw detection device for a rolling mill according to claim 1, characterized in that: The belt moving device is provided with a base, the base is provided with a slope surface inclined downward toward the driving wheel, the driven wheel is arranged on a wedge block that slides with the slope surface, the wedge block is provided with a foldable operating rod, the base is provided with a slot that cooperates with the operating rod, and when the operating rod is clamped in the slot, the wedge block is prevented from moving on the slope surface.

9. The side roll surface treatment and flaw detection device for a rolling mill according to claim 1, characterized in that: A lifting bracket is arranged on the movable bracket, the base with the movable device is arranged on the lifting bracket, and an adjusting device for adjusting the distance between the base and the roller is arranged between the base and the lifting bracket.

10. The side roll surface treatment and flaw detection device for a rolling mill according to claim 1, characterized in that: An oiling device which moves synchronously with the driving belt is provided on one side of the driving belt facing the roller. The oiling device comprises an oil groove and a roller brush. The oil groove is provided with an oil dripping hole, and the roller brush is located below the oil dripping hole.

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