A roll changing device for work rolls of a rolling mill

Abstract

This invention relates to the field of roll changing technology and proposes a roll changing device for work rolls in a rolling mill. The device includes a base, movably mounted on the ground, having a first installation space, which, after movement, allows the device to enter a roll changing position; a roll changing assembly, slidably mounted within the first installation space; a first drive assembly mounted on the base; two moving platforms, mounted on the base, with the roll changing assembly located between the two moving platforms; the roll changing assembly includes: a roll removal platform, slidably mounted on the roll changing assembly and located within the first installation space; a roll loading platform, slidably mounted on the roll changing assembly; a roll changing trolley, slidably mounted on the moving platform and the roll removal platform, or slidably mounted on the moving platform and the roll loading platform; and a second drive assembly mounted on the base. This technical solution solves the problems of time-consuming and labor-intensive roll changing in existing technologies, which require repositioning of the roll system.

Description

Technical Field

[0001] This invention relates to the field of roll changing technology, and more specifically, to a roll changing device for work rolls of a rolling mill. Background Technology

[0002] Roll changing refers to the process of replacing rolling mill rolls. After rolling a certain tonnage, the rolls may become too worn and require re-machined, re-grinding, or even scrapping, necessitating replacement. Traditional roll changing methods involve manual labor and overhead cranes pushing and pulling the mill rolls for replacement. This method is not only time-consuming and labor-intensive, but also requires repositioning, adjusting, and locking the roll system, and carries certain risks. Summary of the Invention

[0003] This invention proposes a roll changing device for the work rolls of a rolling mill, which solves the problems of time-consuming and labor-intensive roll changing and the need for repositioning the roll system in related technologies.

[0004] The technical solution of the present invention is as follows:

[0005] A roll changing device for a rolling mill work roll includes:

[0006] A base is movable and set on the ground, the base has a first installation space, and the base is moved to enter the roller changing position;

[0007] The roller changing assembly is slidably disposed within the first mounting space;

[0008] A first drive assembly is disposed on the base and is used to drive the roller changing assembly to slide.

[0009] Two mobile platforms are mounted on the base, and the roller changing assembly is located between the two mobile platforms.

[0010] The roller changing assembly includes:

[0011] The roll removal platform is slidably mounted on the roll changing assembly and located within the first installation space. After the roll removal platform slides, its two ends abut against the two moving platforms respectively. The roll removal platform is used to place the old roll.

[0012] A roller loading platform is slidably mounted on the roller changing assembly. After the roller changing assembly slides, both ends of the roller changing assembly abut against the two moving platforms respectively. The roller loading platform is used to place new rollers.

[0013] A roll changing trolley is used to slide between the moving platform and the roll removal platform, or to slide between the moving platform and the roll loading platform;

[0014] The second drive assembly is disposed on the base and is used to drive the roll changing car to roll on the moving platform and the roll removal platform or the roll loading platform.

[0015] As a further technical solution, it also includes:

[0016] The first movable component is set on the ground, and the base is moved and set on the ground through the first movable component. After sliding, it is used to cooperate with the roller replacement device.

[0017] The first moving component includes:

[0018] Tracks, for installation on the ground;

[0019] The wheel has several wheels, which are disposed on the base and roll on the track;

[0020] A third drive assembly is disposed on the base, and the third drive assembly is used to drive the wheel to roll.

[0021] As a further technical solution, the base has a first sliding groove on both sides of the first mounting space, and the roller changing assembly is slidably disposed in the first sliding groove;

[0022] The first driving component includes:

[0023] A first driving component is disposed on the base;

[0024] A drive shaft is rotatably mounted on the base and connected to the drive end of the first drive member, which drives the rotating shaft to rotate.

[0025] The first gear has a plurality of them, and the plurality of first gears are spaced apart on the transmission shaft, and the first gear of the driving member rotates with the transmission shaft;

[0026] A plurality of first racks are disposed on the roller changing assembly. A plurality of first gears mesh with a plurality of first racks respectively. After the plurality of first gears rotate, they are used to drive the roller changing assembly to slide.

[0027] As a further technical solution, both the roll removal platform and the roll loading platform have a second slide groove, and the moving platform has a third slide groove. The third slide groove is used to communicate with the roll removal platform or with the roll loading platform, and the roll changing trolley is rotatably disposed in the second slide groove and the third slide groove.

[0028] As a further technical solution, the second driving component includes:

[0029] The second driving component is mounted on the roller changing trolley and is used to drive the roller changing trolley to move.

[0030] The second gear is rotatably mounted on the second driving member, and the second driving member is used to drive the second gear to rotate.

[0031] Two second racks are respectively disposed on the two moving platforms, and the second racks are used to mesh with the second gear.

[0032] There are two third racks, which are respectively disposed on the roll dismantling platform and the roll loading platform. After the roll dismantling platform or the roll loading platform slides, the third rack of the roll loading platform is used to mesh with the second gear, or the third rack of the roll dismantling platform is used to mesh with the second gear. After the second gear meshes with the second rack and the third rack in sequence, it is used to drive the roll changing car to roll in the second chute.

[0033] As a further technical solution, the roller changing car includes:

[0034] The vehicle body is slidably disposed within the second slide groove;

[0035] A connector, provided on the vehicle body, is used to mate with the old roller or the new roller;

[0036] A first cable reel is mounted on the vehicle body and is used for loading and unloading cables.

[0037] As a further technical solution, the third driving component includes:

[0038] A third driving component is disposed on the base;

[0039] A first multi-row sprocket is rotatably mounted on the third driving member, which is used to drive the first multi-row sprocket to rotate.

[0040] The second multi-row sprocket is rotatably mounted on the wheel;

[0041] A chain, comprising several chains, is rotatably mounted on the sprockets of the first multi-row sprocket and the second multi-row sprocket respectively. The chain is used to drive the second multi-row sprocket to rotate, and the second multi-row sprocket is used to drive the wheel to rotate.

[0042] As a further technical solution, it also includes:

[0043] A second cable reel, comprising several reels, is disposed on the base and is used for storing and retrieving the cable.

[0044] The working principle and beneficial effects of this invention are as follows:

[0045] In this invention, to address the time-consuming and labor-intensive nature of roll replacement in existing technologies, which requires repositioning of the roll system, this solution designs a device that can simultaneously perform roll removal and installation. After the base moves to the roll replacement position on the ground, a lifting device places the new roll on the installation platform. The removal platform and the moving platform work together, and the roll replacement trolley pulls the old roll out of the device requiring replacement, leaving it on the removal platform. The roll replacement assembly slides, and the installation platform and the moving platform work together to push the new roll into the device requiring replacement. The trolley then returns to the moving platform, and finally, the base slides out of the roll replacement position. Through the coordination of various components, fully automated roll replacement is achieved without manual assistance. The roll replacement position is the location where the roll replacement device moves to, where it can successfully replace the rolls of the equipment requiring replacement. Attached Figure Description

[0046] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0047] Figure 1 This is a top view of the structure of the present invention;

[0048] Figure 2 This is a side view of the structure of the present invention;

[0049] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0050] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0051] Figure 5 This is a schematic diagram of the cross-sectional structure of a wheel;

[0052] Figure 6 This is a schematic diagram of the third chute structure;

[0053] In the diagram: 1. Base, 2. Roll changing assembly, 3. First drive assembly, 4. Moving platform, 5. Roll dismantling platform, 6. Roll loading platform, 7. Roll changing trolley, 8. Second drive assembly, 9. First moving assembly, 11. Track, 12. Wheel, 13. Third drive assembly, 14. First chute, 15. First drive component, 16. Drive shaft, 17. First gear, 18. First rack, 19. Second chute, 20. Third chute, 21. Second drive component, 22. Second gear, 23. Second rack, 24. Third rack, 25. Car body, 26. Connector, 27. First cable drum, 28. Third drive component, 29. First multi-row wheel, 30. Chain, 31. Second cable drum, 32. Second multi-row wheel. Detailed Implementation

[0054] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0055] like Figures 1-6 As shown, this embodiment proposes...

[0056] A roll changing device for a rolling mill work roll includes:

[0057] Base 1 is movable and set on the ground. Base 1 has a first installation space. After being moved, base 1 is used to enter the roller changing position.

[0058] Roller changing assembly 2 is slidably disposed within the first installation space;

[0059] The first drive assembly 3 is mounted on the base 1 and is used to drive the roller changing assembly 2 to slide.

[0060] Two mobile platforms 4 are set on the base 1, and the roller changing assembly 2 is located between the two mobile platforms 4;

[0061] Roll changing assembly 2 includes:

[0062] The roll removal platform 5 is slidably mounted on the roll changing assembly 2 and located in the first installation space. After the roll removal platform 5 slides, its two ends abut against the two moving platforms 4 respectively. The roll removal platform 5 is used to place the old roll.

[0063] The roller loading platform 6 is slidably mounted on the roller changing assembly 2. After the roller changing assembly 2 slides, both ends of the roller changing assembly 2 abut against the two moving platforms 4 respectively. The roller loading platform 6 is used to place new rollers.

[0064] The roll changing car 7 is used to slide on the moving platform 4 and the roll removal platform 5, or to slide on the moving platform 4 and the roll loading platform 6.

[0065] The second drive assembly 8 is mounted on the base 1 and is used to drive the roll changing carriage 7 to roll on the moving platform 4 and the roll removal platform 5 or the roll loading platform 6.

[0066] In this embodiment, to address the time-consuming and labor-intensive nature of roll replacement in existing technologies, which requires repositioning of the roll system, this solution designs a device that can simultaneously perform roll removal and installation. After the base 1 moves to the roll replacement position on the ground, the lifting device places the new roll on the roll installation platform 6. The roll removal platform 5 and the moving platform 4 cooperate, and the roll replacement trolley pulls the old roll out of the device requiring roll replacement via the moving platform 4 and the roll removal platform 5. The old roll remains on the roll removal platform 5. The roll replacement assembly 2 slides, and the roll installation platform 6 and the moving platform 4 cooperate, pushing the new roll into the device requiring roll replacement via the moving platform 4 and the roll installation platform 6. The trolley then returns to the moving platform 4, and finally, the base 1 slides out of the roll replacement position. Through the cooperation of various components, fully automatic roll replacement is achieved without manual assistance. The roll replacement position is the position where the roll replacement device moves to, where it can successfully replace the rolls of the equipment requiring replacement.

[0067] Furthermore, it also includes:

[0068] The first movable component 9 is set on the ground, and the base 1 is moved and set on the ground through the first movable component 9. After sliding, it is used to cooperate with the roller replacement device.

[0069] The first moving component 9 includes:

[0070] Track 11 is used for installation on the ground;

[0071] There are several wheels 12, which are mounted on the base 1 and rolled on the track 11.

[0072] The third drive assembly 13 is mounted on the base 1 and is used to drive the wheel 12 to roll.

[0073] In this embodiment, to ensure the base 1 can move precisely to the roller changing position, the base 1 is designed to move on the first moving component 9. The first moving component 9 has a limiting function. In this embodiment, the limiting component in the first moving component 9 is designed as a track 11, but it is not limited to the track 11; it can also be other limiting components, such as infrared guides. The third driving component 28 drives one of the wheels 12 to roll. Since the base 1 is slidably mounted on the track 11 by several wheels 12, the friction of the wheels 12 is small, which allows the entire device to slide within the track 11.

[0074] Furthermore, the base 1 has a first groove 14 on both sides of the first installation space, and the roller changing assembly 2 is slidably disposed in the first groove 14;

[0075] The first drive component 3 includes:

[0076] The first driving component 15 is mounted on the base 1;

[0077] The drive shaft 16 is rotatably mounted on the base 1 and connected to the drive end of the first drive member 15. The first drive member 15 drives the rotating shaft to rotate.

[0078] A plurality of first gears 17 are provided, and the plurality of first gears 17 are spaced apart on the transmission shaft 16, and the driving first gears 17 rotate with the transmission shaft 16.

[0079] A plurality of first racks 18 are provided on the roller changing assembly 2. A plurality of first gears 17 mesh with a plurality of first racks 18 respectively. After the plurality of first gears 17 rotate, they are used to drive the roller changing assembly 2 to slide.

[0080] In this embodiment, in order to enable the roller changing assembly 2 to slide within the first installation space, a first slide groove 14 is designed within the installation space. The roller changing assembly 2 slides within the first slide groove 14, which has a limiting function, allowing the roller changing assembly 2 to slide only along the direction of the first slide groove 14. To enable the roller changing assembly 2 to slide, the first driving member 15 drives the first gear 17 to rotate. The first gear 17 meshes with the first rack 18. After the first gear 17 rotates, since the first gear 17 is indirectly rotatably mounted on the base 1, the first rack 18 will drive the roller changing assembly 2 to slide within the first slide groove 14, thus realizing the alternation of the roller removal platform 5 and the roller loading platform 6.

[0081] Furthermore, both the roll removal platform 5 and the roll loading platform 6 have a second chute 19, and the moving platform 4 has a third chute 20. The third chute 20 is used to communicate with the roll removal platform 5 or with the roll loading platform 6. The roll changing trolley is tumbled within the second chute 19 and the third chute 20.

[0082] In this embodiment, to achieve stable pulling of the old and new rollers by the trolley, a third chute 20 is designed on the moving platform 4, and a second chute 19 is designed on both the roller removal platform 5 and the roller loading platform 6. Both the third chute 20 and the second chute 19 have a limiting function. After the roller changing assembly 2 moves, the third chute 20 of the roller removal platform 5 and the second chute 19 of the moving platform 4 cooperate, and the roller changing trolley 7 slides within the second chute 19 and the third chute 20. After sliding, the old roller is removed. The roller changing assembly 2 slides again, and the third chute 20 and the second chute 19 of the loading platform 6 cooperate, and the roller changing trolley 7 slides within the second chute 19 and the third chute 20. After sliding, the new roller is loaded.

[0083] Furthermore, the second drive component 8 includes:

[0084] The second driving component 21 is mounted on the roll changing carriage 7 and is used to drive the roll changing carriage to move.

[0085] The second gear 22 is rotatably mounted on the second driving member 21, and the second driving member 21 is used to drive the second gear 22 to rotate.

[0086] There are two second racks 23, which are respectively disposed on the two moving platforms 4. The second racks 23 are used to mesh with the second gear 22.

[0087] There are two third racks 24, which are respectively set on the roll dismantling platform 5 and the roll loading platform 6. After the roll dismantling platform 5 or the roll loading platform 6 slides, the third rack 24 of the roll loading platform 6 is used to mesh with the second gear, or the third rack 24 of the roll dismantling platform 5 is used to mesh with the second gear 22. After the second gear 22 meshes with the second rack 23 and the third rack 24 in sequence, it is used to drive the roll changing carriage 7 to roll in the second chute 19.

[0088] In this embodiment, in order to realize the movement of the roller changing carriage 7, this solution uses a gear and rack design to drive the carriage to move. The second driving component 21 drives the second gear 22 to rotate. Since the second gear 22 meshes with the third rack 24, and the third rack 24 is set on the moving platform 4, the roller removal platform 5 and the roller loading platform 6, after the second gear 22 rotates, the roller changing carriage 7 will move along the second rack 23 and the third rack 24.

[0089] Furthermore, the roller changing car 7 includes:

[0090] The vehicle body 25 is slidably disposed within the second slide groove 19;

[0091] Connector 26 is mounted on the car body 25 and is used to mate with an old or new roll;

[0092] The first cable drum 27 is mounted on the vehicle body 25 and is used for cable loading and unloading.

[0093] In this embodiment, in order to achieve the effect of loading and unloading rollers, this solution slides the body 25 of the roller changing carriage 7 into the second slide groove 19. The second slide groove 19 plays a limiting role for the roller changing carriage 7, making the roller changing action more stable. The connector 26 is used to connect the old roller and the new roller. In order to better push and pull the new roller and the old roller, the first cable drum 27 can retract and extend the cable as needed, which has the function of strengthening the structure.

[0094] Furthermore, the third drive component 13 includes:

[0095] The third driving component 28 is mounted on the base 1;

[0096] The first multi-row sprocket 29 is rotatably mounted on the third drive member 28, which is used to drive the first multi-row sprocket 29 to rotate.

[0097] The second multi-row sprocket 32 ​​is rotatably mounted on the wheel 12;

[0098] Chains 30 are provided in several units and are respectively rotatably mounted on the first multi-row sprockets 29 and the second multi-row sprockets 32. Chains 30 are used to drive the second multi-row sprockets 32 to rotate, and the second multi-row sprockets 32 are used to drive the wheel 12 to rotate.

[0099] In this embodiment, in order to realize the movement of the base 1, the solution is designed with a third driving component 28 to drive the first multi-row wheel to rotate, the first multi-row wheel to drive the chain 30 to rotate, and the chain 30 to drive a certain wheel 12 to rotate. Since the base 1 is moved and set in the track 11 by the wheel 12, the friction of the wheel 12 is small, which can drive the base 1 to move. The first multi-row wheel and the second multi-row wheel are for strengthening the structure. This solution can be a single row wheel, a double row wheel, or more rows.

[0100] Furthermore, it also includes:

[0101] The second cable drum, which has several sections, is set on the base 1 and is used for loading and unloading cables.

[0102] In this embodiment, to strengthen the structure, several second cable reels are designed on the base 1. The second cable reels can extend and retract the cable length as needed, which can prevent workers from tripping and make the working environment cleaner.

[0103] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A roll changing device for work rolls of a rolling mill, characterized in that, include: The base (1) is movably set on the ground, the base (1) has a first installation space, and the base (1) is moved to enter the roller changing position; The roller changing assembly (2) is slidably disposed within the first installation space; The first drive assembly (3) is disposed on the base (1) and is used to drive the roller changing assembly (2) to slide. Two mobile platforms (4) are arranged on the base (1), and the roller changing assembly (2) is located between the two mobile platforms (4); The roller changing assembly (2) includes: The roll removal platform (5) is slidably disposed on the roll changing assembly (2) and located in the first installation space. After the roll removal platform (5) slides, the two ends of the roll removal platform (5) abut against the two moving platforms (4) respectively. The roll removal platform (5) is used to place the old roll. The roller loading platform (6) is slidably mounted on the roller changing assembly (2). After the roller changing assembly (2) slides, both ends of the roller changing assembly (2) abut against the two moving platforms (4) respectively. The roller loading platform (6) is used to place new rollers. Roll changing car (7) is used to slide on the moving platform (4) and the roll dismantling platform (5), or slide on the moving platform (4) and the roll loading platform (6); The second drive assembly (8) is disposed on the base (1) and is used to drive the roll changing car (7) to roll on the moving platform (4) and the roll removal platform (5) or the roll loading platform (6). Also includes: The first moving component (9) is set on the ground, and the base (1) is moved and set on the ground through the first moving component (9), and is used to cooperate with the roller replacement device after sliding. The first moving component (9) includes: Track (11) is used to be installed on the ground; A wheel (12) is provided, and the wheel (12) is disposed on the base (1) and rolled on the track (11); A third drive assembly (13) is disposed on the base (1) and the third drive assembly (13) is used to drive the wheel (12) to roll. The roll removal platform (5) and the roll loading platform (6) both have a second chute (19), and the moving platform (4) has a third chute (20). The third chute (20) is used to communicate with the roll removal platform (5) or with the roll loading platform (6). The roll changing car (7) is rotatably disposed in the second chute (19) and the third chute (20).

2. The roll changing device for work rolls of a rolling mill according to claim 1, characterized in that, The base (1) has a first groove (14) on both sides of the first installation space, and the roller changing assembly (2) is slidably disposed in the first groove (14); The first driving component (3) includes: A first driving element (15) is disposed on the base (1); The drive shaft (16) is rotatably mounted on the base (1) and connected to the drive end of the first drive member (15). The first drive member (15) drives the drive shaft (16) to rotate. The first gear (17) has a plurality of them, and the plurality of first gears (17) are spaced apart on the transmission shaft (16). The first gear (17) of the driving member rotates with the transmission shaft (16). A plurality of first racks (18) are provided on the roller changing assembly (2). A plurality of first gears (17) mesh with a plurality of first racks (18). After the plurality of first gears (17) rotate, they are used to drive the roller changing assembly (2) to slide.

3. A roll changing device for work rolls in a rolling mill according to claim 1, characterized in that, The second driving component (8) includes: The second driving component (21) is disposed on the roller changing car (7) and is used to drive the roller changing car (7) to move; The second gear (22) is rotatably mounted on the second driving member (21), and the second driving member (21) is used to drive the second gear (22) to rotate; There are two second racks (23), which are respectively disposed on the two moving platforms (4). The second racks (23) are used to mesh with the second gear (22); There are two third racks (24), which are respectively arranged on the roll dismantling platform (5) and the roll loading platform (6). After the roll dismantling platform (5) or the roll loading platform (6) slides, the third rack (24) of the roll loading platform (6) is used to mesh with the second gear, or the third rack (24) of the roll dismantling platform (5) is used to mesh with the second gear (22). After the second gear (22) meshes with the second rack (23) and the third rack (24) in sequence, it is used to drive the roll changing car (7) to roll in the second chute (19).

4. A roll changing device for work rolls in a rolling mill according to claim 1, characterized in that, The roller changing car (7) includes: The vehicle body (25) is slidably disposed within the second slide groove (19); A connector (26) is provided on the car body (25) for engaging with the old roller or the new roller; A first cable reel (27) is mounted on the vehicle body (25) and is used for cable loading and unloading.

5. A roll changing device for a rolling mill work roll according to claim 1, characterized in that, The third drive component (13) includes: The third driving component (28) is disposed on the base (1); The first multi-row sprocket (29) is rotatably mounted on the third drive member (28), which is used to drive the first multi-row sprocket (29) to rotate. The second multi-row sprocket (32) is rotatably mounted on the wheel (12); Chains (30) are provided in several units and are respectively rotatably mounted on the sprockets of the first multi-row sprocket (29) and the second multi-row sprocket (32). The chains (30) are used to drive the second multi-row sprocket (32) to rotate, and the second multi-row sprocket (32) is used to drive the wheel (12) to rotate.

6. A roll changing device for work rolls in a rolling mill according to claim 1, characterized in that, Also includes: A second cable reel (31) is provided on the base (1), and the second cable reel (31) is used to store and take in the cable.

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