A new type of roll balancing device for rolling mill

Abstract

The utility model relates to rolling mill roll technology field especially a new -type rolling mill is with roll balancing unit, including the bed, the both ends of the top of bed are fixed with first side plate, the both ends of first side plate are installed with hydraulic telescopic link, the top fixed connection of hydraulic telescopic link has the second side plate, the top of two second side plates is fixed with the roof, two first side plate and two second side plate between all rotatory installation has the roll. Advantageous effect lies in: the utility model stabilizes the adjustment interval between two rolls, and the steel plate of different thickness is rolled with convenience, through the rotatory support of first ball bearing and second ball bearing to the both ends of roll, strengthens the support to roll, can keep the stable balance of roll, and cooperates the anti -jumping pole, improves the coaxial degree of roll rotation, avoids the influence of the quality of the rolled steel plate of roll jumping.

Description

Technical Field

[0001] This utility model relates to the field of rolling mill roll technology, and in particular to a novel rolling mill roll balancing device. Background Technology

[0002] Hot-rolled strip steel and section steel are widely used in civil construction, industrial construction, bridge construction, petroleum industry, high-rise buildings, subways, mine tunnels, and industrial steel structures due to their excellent mechanical properties. In rolling mills, frequent roll changes create a gap between the balls and bearing sleeves of the roll bearings. This gap widens further due to the weight of the rolls themselves. When the workpiece passes through the rolls, the immense rolling force impacts the roll balls through the rolls and bearing sleeves, affecting rolling accuracy. The balancing device is used to balance the weight of the rolls and provide preload to reduce the impact of the steel plate on the rolls and bearings during rolling, ensuring rolling accuracy and minimizing damage to the roll system. Therefore, every rolling mill must have a balancing device to ensure rolling accuracy, reduce impact on bearings and the roll system, and extend bearing life.

[0003] In existing rolling mill roll balancing devices, the rolls press down on the bearings and bearing grooves at both ends during rolling, causing gaps and loosening between the roll ends and the mill side plates. This results in the rolls rotating at both ends being misaligned and not level during rolling, causing them to jump and become unbalanced, thus affecting the quality of the rolled steel plates.

[0004] Therefore, a novel roll balancing device for rolling mills is proposed. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where gaps appear between the two ends of the roll and the side plate of the rolling mill, causing the roll to become misaligned and not level during rolling, resulting in roll jumps, roll imbalance, and affecting the quality of rolled steel plates. Therefore, a novel roll balancing device for rolling mills is proposed.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A novel rolling mill roll balancing device is designed, comprising a base, with first side plates fixed at both ends of the top of the base, hydraulic telescopic rods installed at both ends of the first side plates, second side plates fixedly connected to the top of the hydraulic telescopic rods, and top plates fixed to the top of the two second side plates. Rolls are rotatably mounted between the two first side plates and the two second side plates, and balancing and stabilizing mechanisms are installed at both ends of the rolls. The balancing and stabilizing mechanism includes a rotating column fixed to both ends of the roll, a first ball bearing sleeved on the surface of the rotating column and located at both ends of the roll, a stabilizing groove formed at both ends of the rotating column, a second ball bearing installed inside the stabilizing groove, a stabilizing column passing through the inside of the second ball bearing and inserted into the stabilizing groove, and a stabilizing frame fixed to the outer end of the stabilizing column.

[0007] Furthermore, both the first side plate and the second side plate are vertically arranged and aligned vertically. Guide holes are opened on the opposite surfaces of the first side plate and the second side plate, and guide posts are slidably inserted between the upper and lower guide holes.

[0008] Furthermore, a rotating hole is provided in the middle of the side of both the first side plate and the second side plate, and a bearing groove is provided at the inner end of the rotating hole. The rotating column slides through the rotating hole, and the outer side of the first ball bearing is fastened to the inside of the bearing groove.

[0009] Furthermore, the bearing groove has grooves at both the upper and lower ends, and springs are elastically installed inside the grooves, with anti-jumping rods connected to the outer ends of the springs.

[0010] Furthermore, the inner end of the anti-jumping rod is slidably inserted into the inner end of the groove and is horizontally positioned. Limiting grooves are opened at both ends of the roller and at positions outside the first ball bearing. The outer end of the anti-jumping rod is slidably inserted into the limiting groove, and the limiting groove is an annular groove structure.

[0011] Furthermore, a pulley for driving the roller to rotate is fixed at one end of the rotating column and at a position outside the first side plate. Mounting columns are fixed at the outer sides of both the first and second side plates and at positions outside the pulley. The mounting columns are horizontally arranged.

[0012] Furthermore, the stabilizer has a T-shaped structure and is vertically installed at the outer end of the rotating column. Its horizontal section has evenly spaced mounting holes, and the vertical section of the stabilizer is fixed to the outer end of the stabilizer.

[0013] Furthermore, the mounting post slides through the mounting hole, and the mounting post has a threaded post structure with nuts connected to its surface and on both sides of the mounting hole.

[0014] Compared with the prior art, the novel rolling mill roll balancing device proposed in this utility model has the following advantages: 1. This utility model rotatably installs two rollers between the first and second side plates. The rollers can be extended and retracted by a hydraulic telescopic rod, and the second side plate, which moves up and down, is stably guided by a guide column. This allows for stable adjustment of the distance between the two rollers, facilitating the rolling of steel plates of different thicknesses.

[0015] 2. In this invention, first ball bearings are installed on the surfaces of the rotating columns at both ends of the roll, and the roll is horizontally rotated and installed through rotating holes and bearing grooves. Simultaneously, anti-jumping rods are elastically installed in the grooves inside the first and second side plates via springs. The protruding ends of the anti-jumping rods slide into the limiting grooves at both ends of the roll, limiting the roll's movement. Meanwhile, second ball bearings are installed in the stabilizing groove inside the outer end of the rotating column, and a stabilizing column is inserted into the stabilizing groove and passes through the second ball bearing. The stabilizing column is stably installed on the outer side of the first and second side plates via a stabilizing frame and mounting column, thus providing stable and balanced support for both ends of the rotating column. In this way, the first and second ball bearings jointly provide rotational support for both ends of the roll, strengthening the support for the roll, maintaining its stability and balance, and, in conjunction with the anti-jumping rods, improving the coaxiality of the roll rotation, preventing roll jumps that could affect the quality of the rolled steel plate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 A schematic diagram of the guide rod, anti-jump rod, first side plate, and second side plate; Figure 3 This utility model Figure 1 A schematic diagram of the guide hole, groove, first side plate, and second side plate; Figure 4 This utility model Figure 1 A schematic diagram of the anti-jumping rod and spring components; Figure 5 This utility model Figure 1 A schematic diagram of the rolling mill rolls, rotating column, and stabilizing groove; Figure 6 This utility model Figure 1 A schematic diagram of the stabilizing column and stabilizing frame.

[0017] In the diagram: 1. Machine base; 2. Roll; 3. Hydraulic telescopic rod; 4. First side plate; 5. Second side plate; 6. Top plate; 7. Mounting column; 8. Stabilizer; 9. Stabilizer column; 10. Pulley; 11. Guide column; 12. Rotating column; 13. Nut; 14. Rotating hole; 15. Bearing groove; 16. Anti-jumping rod; 17. Groove; 18. Guide hole; 19. Spring; 20. Stabilizer groove; 21. First ball bearing; 22. Limiting groove; 23. Second ball bearing; 24. Mounting hole. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] For examples, please refer to Figures 1 to 6 The figure shows a novel rolling mill roll balancing device, including a base 1. First side plates 4 are fixed at both ends of the top of the base 1. Hydraulic telescopic rods 3 are installed at both ends of the first side plates 4. Second side plates 5 are fixedly connected to the top of the hydraulic telescopic rods 3. Top plates 6 are fixed to the top of the two second side plates 5. Rolls 2 are rotatably installed between the two first side plates 4 and the two second side plates 5. Balancing and stabilizing mechanisms are installed at both ends of the rolls 2.

[0020] In detail, the first side plate 4 and the second side plate 5 are both vertically arranged and aligned vertically. The opposite surfaces of the first side plate 4 and the second side plate 5 are provided with guide holes 18, and guide posts 11 are slidably inserted between the upper and lower guide holes 18.

[0021] The guide column 11 provides stable guidance for the vertically moving second side plate 5, thereby stabilizing the gap between the two rolls 2 and facilitating the rolling of steel plates of different thicknesses.

[0022] Furthermore, the balancing and stabilizing mechanism includes a rotating column 12 fixed at both ends of the roll 2, a first ball bearing 21 sleeved on the surface of the rotating column 12 and located at both ends of the roll 2, a stabilizing groove 20 opened at both ends of the rotating column 12, a second ball bearing 23 installed inside the stabilizing groove 20, a stabilizing column 9 passing through the inside of the second ball bearing 23 and inserted into the inside of the stabilizing groove 20, and a stabilizing frame 8 fixed to the outer end of the stabilizing column 9.

[0023] Furthermore, a rotating hole 14 is provided in the middle of the side of the first side plate 4 and the second side plate 5. A bearing groove 15 is provided at the inner end of the rotating hole 14. The rotating column 12 slides through the rotating hole 14, and the outer side of the first ball bearing 21 is fastened to the inside of the bearing groove 15.

[0024] The first ball bearing 21 and the second ball bearing 23 jointly provide rotational support for both ends of the roll 2, which strengthens the support for the roll 2 and maintains the stable balance of the roll 2. In conjunction with the anti-jump rod 16, the coaxiality of the roll 2 rotation is improved, and the roll 2 jumps and affects the quality of the rolled steel plate.

[0025] Furthermore, the bearing groove 15 has grooves 17 at both the upper and lower ends, and springs 19 are elastically installed inside the grooves 17. The outer end of the springs 19 is connected to an anti-jumping rod 16.

[0026] Furthermore, the inner end of the anti-jumping rod 16 is slidably inserted into the inner end of the groove 17 and is set horizontally. Limiting grooves 22 are opened at both ends of the roller 2 and at the position outside the first ball bearing 21. The outer end of the anti-jumping rod 16 is slidably inserted into the limiting groove 22. The limiting groove 22 is a circular groove structure.

[0027] Inside the groove 17 on the inner side of the first side plate 4 and the second side plate 5, an anti-jumping rod 16 is elastically installed by a spring 19. The protruding end of the anti-jumping rod 16 is slidably inserted into the limiting groove 22 at both ends of the roll 2 to limit the roll 2 to prevent it from jumping.

[0028] Additionally, a pulley 10 for driving the roller 2 to rotate is fixed at one end of the rotating column 12 and at a position outside the first side plate 4. Mounting columns 7 are fixed at positions outside the first side plate 4 and the second side plate 5 and at positions outside the pulley 10. The mounting columns 7 are horizontally arranged.

[0029] Finally, the stabilizer 8 has a T-shaped structure and is vertically installed at the outer end of the rotating column 12. Its horizontal section has evenly spaced mounting holes 24, and the vertical section of the stabilizer 8 is fixed to the outer end of the stabilizer column 9.

[0030] The mounting post 7 slides through the mounting hole 24. The mounting post 7 is a threaded post structure, and nuts 13 are connected to its surface and on both sides of the mounting hole 24.

[0031] The stabilizing column 9 is stably installed on the outside of the first side plate 4 and the second side plate 5 through the stabilizing frame 8 and the mounting column 7, thereby providing stable and balanced support for both ends of the rotating column 12.

[0032] Working principle: Two rollers 2 are rotatably installed between the first side plate 4 and the second side plate 5. They can be extended and retracted by the hydraulic telescopic rod 3, and the second side plate 5, which moves up and down, is stably guided by the guide column 11, thereby stably adjusting the distance between the two rollers 2, which is convenient for rolling steel plates of different thicknesses.

[0033] First ball bearings 21 are installed on the surfaces of the rotating columns 12 at both ends of the roll 2, and the roll 2 is horizontally rotated and installed through the rotating holes 14 and bearing grooves 15. At the same time, anti-jumping rods 16 are elastically installed in the grooves 17 inside the first side plate 4 and the second side plate 5 through springs 19. The protruding ends of the anti-jumping rods 16 are slidably inserted into the limiting grooves 22 at both ends of the roll 2 to limit the jump at both ends of the roll 2.

[0034] Meanwhile, a second ball bearing 23 is installed inside the stabilizing groove 20 at the outer end of the rotating column 12. The stabilizing column 9 is inserted into the stabilizing groove 20 and passes through the second ball bearing 23. At the same time, the stabilizing column 9 is stably installed on the outer side of the first side plate 4 and the second side plate 5 through the stabilizing frame 8 and the mounting column 7, so that the two ends of the rotating column 12 can be stably balanced and supported.

[0035] Thus, by using the first ball bearing 21 and the second ball bearing 23 to provide rotational support for both ends of the roll 2, the support for the roll 2 is strengthened, the roll 2 can be kept stable and balanced, and with the anti-jumping rod 16, the coaxiality of the roll 2 rotation is improved, and the roll 2 is prevented from jumping and affecting the quality of the rolled steel plate.

[0036] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A novel roll balancing device for rolling mills, comprising a mill base, characterized in that: The top two ends of the base are fixed with first side plates, and the two ends of the first side plates are equipped with hydraulic telescopic rods. The top ends of the hydraulic telescopic rods are fixedly connected with second side plates, and the top ends of the two second side plates are fixed with top plates. Rollers are rotatably installed between the two first side plates and the two second side plates, and the two ends of the rolls are equipped with balancing and stabilizing mechanisms. The balancing and stabilizing mechanism includes a rotating column fixed to both ends of the roll, a first ball bearing sleeved on the surface of the rotating column and located at both ends of the roll, a stabilizing groove formed at both ends of the rotating column, a second ball bearing installed inside the stabilizing groove, a stabilizing column passing through the inside of the second ball bearing and inserted into the stabilizing groove, and a stabilizing frame fixed to the outer end of the stabilizing column.

2. The novel rolling mill roll balancing device according to claim 1, characterized in that: Both the first side plate and the second side plate are vertically arranged and aligned vertically. Guide holes are opened on the opposite surfaces of the first side plate and the second side plate, and guide posts are slidably inserted between the upper and lower guide holes.

3. The novel rolling mill roll balancing device according to claim 1, characterized in that: Both the first side plate and the second side plate have a rotating hole in the middle of their sides. The inner end of the rotating hole has a bearing groove. The rotating column slides through the rotating hole, and the outer side of the first ball bearing is fastened to the inside of the bearing groove.

4. A novel rolling mill roll balancing device according to claim 3, characterized in that: The bearing groove has grooves at both the upper and lower ends, and springs are elastically installed inside the grooves. An anti-jumping rod is connected to the outer end of the spring.

5. A novel rolling mill roll balancing device according to claim 4, characterized in that: The inner end of the anti-jumping rod is slidably inserted into the inner end of the groove and is horizontally positioned. Limiting grooves are opened at both ends of the roller and at the position outside the first ball bearing. The outer end of the anti-jumping rod is slidably inserted into the limiting groove, and the limiting groove is an annular groove structure.

6. A novel rolling mill roll balancing device according to claim 1, characterized in that: A pulley for driving the roller to rotate is fixed at one end of the rotating column and at a position outside the first side plate. Mounting columns are fixed at the outer sides of both the first and second side plates and at positions outside the pulley. The mounting columns are horizontally arranged.

7. A novel rolling mill roll balancing device according to claim 6, characterized in that: The stabilizer has a T-shaped structure and is vertically installed at the outer end of the rotating column. Its horizontal section has evenly spaced mounting holes, and its vertical section is fixed to the outer end of the stabilizer.

8. A novel rolling mill roll balancing device according to claim 7, characterized in that: The mounting post slides through the mounting hole. The mounting post has a threaded structure and nuts are connected to its surface and on both sides of the mounting hole.

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