A new multi-roll combined seamless steel pipe rolling equipment

Abstract

The utility model relates to the field of seamless steel pipe rolling technology discloses a new type multi -roller combined seamless steel pipe rolling equipment, including base, the base left side fixedly connected with injection box, the injection box right side fixedly connected with fixed column, the fixed column right side outer wall thread connection has the connecting rod, the connecting rod left side ring fixedly connected with the fixed ring, the fixed ring right side fixedly connected with the hydraulic cylinder, the hydraulic cylinder output end fixedly connected with the push ring, the fixed ring and push ring outer wall rotation are connected with the inclined plate, the inclined plate outer wall rotation is connected with the arc plate, the arc plate outer wall fixedly connected with the steel pipe. In the utility model, the radial rolling of the steel pipe is realized through the mechanism of the second motor, gear, rack, inclined rod and sliding disc, the diameter, wall thickness and other parameters of the steel pipe can be accurately controlled, which helps to complete the diameter reduction, wall thickness adjustment or shape correction and other processing, thereby improving the dimensional accuracy and shape accuracy of the steel pipe.

Description

Technical Field

[0001] This utility model relates to the field of seamless steel pipe rolling technology, specifically a new type of multi-roll combined seamless steel pipe rolling equipment. Background Technology

[0002] Seamless steel pipes, due to their high strength and excellent sealing properties, can withstand greater pressure and tension, and are widely used in industrial production and engineering construction, such as in the manufacture of transportation vehicles like airplanes, ships, and trains, as well as pipeline systems for transporting oil, gas, and water. They are hailed as the "micro-vessels of industry." With the acceleration of industrialization in various countries, the demand for seamless steel pipes is increasing, driving continuous progress in their rolling technology.

[0003] Traditional seamless steel pipe production equipment is energy-intensive, and operating multiple sets of equipment increases investment costs. New multi-roll combined rolling mills can improve material utilization and reduce energy consumption by optimizing the rolling process. Furthermore, their high production capacity and minimal equipment maintenance requirements also help reduce the production cost per unit product.

[0004] The inability to precisely control the force and range of radial rolling will result in a significant deviation between the actual pipe diameter and the design value, potentially exceeding the error range allowed by industry standards, thus causing the product to fail to meet usage requirements.

[0005] To address the aforementioned issues, a novel multi-roll combined seamless steel pipe rolling equipment is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a novel multi-roll combined seamless steel pipe rolling equipment, which solves the problem in the prior art that the radial rolling force and range cannot be precisely controlled, resulting in a large deviation between the actual pipe diameter and the design value, which may exceed the error range allowed by industry standards, leading to products that do not meet the requirements for use.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A novel multi-roll combined seamless steel pipe rolling equipment includes a base, a material injection box fixedly connected to the left side of the base, a fixed column fixedly connected to the right side of the material injection box, a connecting rod threadedly connected to the outer wall of the right side of the fixed column, a fixed ring fixedly connected to the left side of the connecting rod, a hydraulic cylinder fixedly connected to the right side of the fixed ring, a pushing ring fixedly connected to the output end of the hydraulic cylinder, an inclined plate rotatably connected to the outer wall of the fixed ring and the pushing ring, an arc-shaped plate rotatably connected to the outer wall of the inclined plate, a steel pipe fixedly connected to the outer wall of the arc-shaped plate, a support plate fixedly connected to the top right side of the base, an arc-shaped guide rail fixedly connected to the outer wall of the right side of the support plate, a moving block slidably connected to the outer wall of the arc-shaped guide rail, a moving plate fixedly connected to the outer wall of the right side of the moving block, a fan fixedly connected to the rear end of the moving plate, and a drive assembly provided at the rear end of the base.

[0008] By adopting the above technical solution, the moving block moves on the outer wall through the arc-shaped guide rail, which in turn moves the moving plate, causing the fan to move. The hydraulic cylinder is resistant to high temperatures, and the hydraulic oil inside the connecting rod ensures the operation of the hydraulic cylinder.

[0009] As a further description of the above technical solution: the driving component includes a guide plate, which is fixedly connected to the rear end of the base. A movable disk is slidably connected to the bottom of the guide plate and is slidably connected to the outer wall of the base. A first motor is fixedly connected to the rear end of the movable disk. A gear is fixedly connected to the output end of the first motor. A rack is meshed with the outer ring of the gear and is fixedly connected to the base. A support column is fixedly connected to the front end of the movable disk, and a grooved plate is fixedly connected to the front end of the support column.

[0010] By adopting the above technical solution, the first motor drives the gear to rotate, so that the gear meshes with the rack, and the guide plate moves the moving disk.

[0011] As a further description of the above technical solution: a second motor is fixedly connected to the rear end of the grooved plate, and a rotating plate is fixedly connected to the output end of the second motor.

[0012] By adopting the above technical solution, the rotating plate is driven to rotate by the second motor.

[0013] As a further description of the above technical solution: both ends of the rotating plate are rotatably connected to inclined rods, and one end of each inclined rod is rotatably connected to a sliding disk.

[0014] By adopting the above technical solution, the sliding disk is moved by rotating the inclined rod.

[0015] As a further description of the above technical solution: the rear end of the groove plate is fixedly connected with evenly distributed guide blocks.

[0016] By adopting the above technical solution, the guide block is used for guidance and limiting.

[0017] As a further description of the above technical solution: a sliding block is slidably connected to the outer wall of the guide block, and the sliding block is fixedly connected to the sliding disk.

[0018] By adopting the above technical solution, the sliding block slides on the outer wall of the guide block.

[0019] As a further description of the above technical solution: a clamping plate is fixedly connected to the front end of the sliding disk.

[0020] By adopting the above technical solution, the sliding plate moves, driving the clamping plate to move.

[0021] As a further description of the above technical solution: a connecting plate is fixedly connected to the opposite side of the clamping plate, and a rolling wheel is rotatably connected between the connecting plates.

[0022] By adopting the above technical solution, rolling is required using a rolling mill.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] 1. The present invention provides a novel multi-roll combined seamless steel pipe rolling equipment. First, the steel pipe is radially rolled by a mechanism such as a second motor, gear, rack, and inclined bar driving a sliding disc. It can accurately control parameters such as pipe diameter and wall thickness, which helps to complete processes such as pipe diameter reduction, wall thickness adjustment or shape correction, thereby improving the dimensional accuracy and shape accuracy of the steel pipe.

[0025] 2. The present invention provides a novel multi-roll combined seamless steel pipe rolling equipment, which uses a hydraulic cylinder to drive an arc plate to fix the steel pipe, ensuring the stability of the steel pipe during the rolling process and reducing shaking and deviation. The rolled steel pipe is cooled by an arc guide rail, a moving block, a moving plate and a fan, thereby improving product quality. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the overall rear view structure of this utility model;

[0028] Figure 3 This is a schematic diagram of the second motor of this utility model;

[0029] Figure 4 This is a schematic diagram of the arc-shaped plate of this utility model.

[0030] In the diagram: 1. Base; 2. Guide plate; 3. Injection box; 4. Support plate; 5. Arc-shaped guide rail; 6. Moving block; 7. Moving plate; 8. Moving disk; 9. First motor; 10. Gear; 11. Rack; 12. Fan; 13. Support column; 14. Groove plate; 15. Second motor; 16. Rotating plate; 17. Diagonal bar; 18. Sliding disk; 19. Guide block; 20. Sliding block; 21. Clamping plate; 22. Connecting plate; 23. Rolling wheel; 24. Fixed column; 25. Steel pipe; 26. Connecting rod; 27. Arc-shaped plate; 28. Hydraulic cylinder; 29. ​​Pushing ring; 30. Fixed ring; 31. Diagonal plate. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] To further understand the contents of this utility model, a detailed description of this utility model will be provided with reference to the accompanying drawings.

[0033] Reference Figures 1-4 This utility model discloses a novel multi-roll combined seamless steel pipe rolling equipment, comprising a base 1 as the foundation of the equipment, a feeding box 3 fixedly connected to the left side for supplying the raw materials required for rolling, a fixed column 24 fixedly connected to the right side of the feeding box 3, and a connecting rod 26 threadedly connected to the outer wall of the right side of the column 24 for easy disassembly and replacement of the connecting rod 26, forming a support frame for the left fixed mechanism. A support plate 4 is fixedly connected to the top right side of the base 1, and an arc-shaped guide rail 5 is fixedly connected to the outer wall of the right side of the support plate 4 to guide the movement of the subsequent cooling mechanism; a guide plate 2 is fixedly connected to the rear end of the base 1 as the sliding base of the drive component.

[0034] Operation process of steel pipe fixing mechanism

[0035] The steel pipe 25 to be rolled is fitted onto the outer wall of the arc plate 27, ensuring that the axis of the steel pipe is aligned with the central axis of the equipment. The hydraulic cylinder 28 on the right side of the fixing ring 30 is activated, and the output end of the hydraulic cylinder pushes the pushing ring 29 to move axially to the right. During the movement of the pushing ring 29, the inclined plate 31 rotatably connected to its outer wall changes angle, causing the arc plate 27 rotatably connected to the other end to retract inward until the inner wall of the arc plate 27 is tightly fitted with the outer wall of the steel pipe 25, completing the radial fixing of the steel pipe. This steel pipe is a mold, through which heated steel pipe raw materials are extruded and rolled by the injection box 3.

[0036] During the fixing process, the threaded connection structure between the connecting rod 26 and the fixing column 24 can be adjusted by rotating the initial position of the fixing ring 30 to adapt to the needs of steel pipes of different lengths.

[0037] Operation control of drive components

[0038] Lateral movement adjustment: Start the first motor 9 at the rear of the moving disk 8. The motor output drives the gear 10 to rotate. The gear meshes with the rack 11 fixed on the base 1, driving the moving disk 8 to slide along the guide plate 2 and the surface of the base 1. The moving disk 8 drives the grooved plate 14 to move synchronously through the support column 13 fixed at the front end, realizing the position adjustment of the rolling roller 23 along the axial direction of the steel pipe to meet the processing requirements of different rolling sections.

[0039] Workflow of the radial rolling mechanism

[0040] Rolling parameter adjustment: Start the second motor 15 at the rear end of the grooved plate 14. The motor output drives the rotating plate 16 to rotate. The inclined rods 17 connected to both ends of the rotating plate rotate with it and push the sliding disk 18 to move. The sliding disk 18 slides along the guide block 19 at the rear end of the grooved plate 14 through the sliding block 20 fixed at the bottom, ensuring the straightness of the movement trajectory. The clamping plate 21 fixed at the front end of the sliding disk drives the rolling roller 23 between the connecting plates 22 to move synchronously, realizing the precise adjustment of the distance between the rolling roller and the outer wall of the steel pipe.

[0041] Multi-roll rolling operation: The rotation angle of the rotating plate 16 is controlled by the forward and reverse rotation of the second motor 15, which simultaneously adjusts the radial pressure of the two symmetrically arranged rolling rollers 23. The two rolling rollers work together to radially roll the steel pipe 25. During the rolling process, the rolling rollers 23 can rotate freely with the steel pipe 25, and uniformly roll the outer wall of the steel pipe through rolling friction, completing processes such as pipe diameter reduction, wall thickness adjustment, or shape correction.

[0042] Coordinated operation of cooling mechanisms

[0043] While the steel pipe 25 is being rolled by the rolling rollers, the movable block 6 on the outer wall of the arc-shaped guide rail 5 can slide along the guide rail, driving the movable plate 7 on the right side to move synchronously, so that the fan 12 fixed at the rear end of the movable plate is always aligned with the rolling area. The fan 12 is started, and the airflow dissipates the heat generated during the rolling process in real time, preventing the steel pipe from deforming or changing its properties due to high temperature. The sliding fit between the movable block 6 and the arc-shaped guide rail 5 allows for flexible adjustment of the fan angle according to the rolling position, ensuring that the cooling effect covers the entire processing area.

[0044] Multi-size compatibility

[0045] By replacing the arc-shaped plates 27 with different curvatures and the rolling rollers 23 with different diameters, combined with the stroke adjustment of the hydraulic cylinder 28 and the angle control of the second motor 15, the rolling of seamless steel pipes with various diameters and wall thicknesses can be achieved. The uniformly distributed structure of the guide blocks 19 ensures the movement accuracy of the sliding disc 18, and the transmission accuracy of the gear and rack ensures that the rolling error is controlled within the allowable range of industry standards.

[0046] Working principle: The steel pipe 25 is placed on the outer wall of the arc plate 27. The connecting rod 26, which is threaded to the outer wall of the fixing column 24 on the right side of the injection box 3 on the left side of the base 1, works with the left fixing ring 30 and the inclined plate 31 that pushes the outer wall of the ring 29 to rotate at the output end of the hydraulic cylinder 28. When the hydraulic cylinder 28 is activated, the arc plate 27 can fix the steel pipe 25 and discharge it from the injection box 3. Under the meshing action of the gear 10 at the output end of the first motor 9 and the rack 11 on the base 1, it can slide along the base 1. The groove plate 14 is moved by the front support column 13. The plate 16 at the output end of the second motor 15 rotates. The inclined rods 17 at both ends will drive the sliding disk 18 to move. The sliding disk 18 slides on the outer wall of the guide block 19 at the rear end of the groove plate 14 through the sliding block 20. The rolling wheel 23 between the clamping plate 21 and the connecting plate 22 at its front end will roll the steel pipe 25. Different steel pipes can be rolled at the same time to achieve radial rolling of the steel pipe 25 and complete the pipe diameter reduction, wall thickness adjustment or shape correction. The steel pipe moves to the right. The moving block 6 sliding on the outer wall of the arc guide rail 5 drives the moving plate 7 to move. The fan 12 at the rear end of the moving plate 7 can cool the rolling process.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel multi-roll combined seamless steel pipe rolling equipment, comprising a base (1), characterized in that: A material injection box (3) is fixedly connected to the left side of the base (1), and a fixed column (24) is fixedly connected to the right side of the material injection box (3). A connecting rod (26) is threadedly connected to the outer wall of the right side of the fixed column (24). A fixed ring (30) is fixedly connected to the left side of the connecting rod (26), and a hydraulic cylinder (28) is fixedly connected to the right side of the fixed ring (30). A push ring (29) is fixedly connected to the output end of the hydraulic cylinder (28). An inclined plate (31) is rotatably connected to the outer wall of the fixed ring (30) and the push ring (29). An arc-shaped plate (27) is rotatably connected to the outer wall of the plate (31). A steel pipe (25) is fixedly connected to the outer wall of the arc-shaped plate (27). A support plate (4) is fixedly connected to the top right side of the base (1). An arc-shaped guide rail (5) is fixedly connected to the outer right side of the support plate (4). A moving block (6) is slidably connected to the outer wall of the arc-shaped guide rail (5). A moving plate (7) is fixedly connected to the outer right side of the moving block (6). A fan (12) is fixedly connected to the rear end of the moving plate (7). A drive assembly is provided at the rear end of the base (1).

2. The novel multi-roll combined seamless steel pipe rolling equipment according to claim 1, characterized in that: The drive assembly includes a guide plate (2), which is fixedly connected to the rear end of the base (1). A movable disk (8) is slidably connected to the bottom of the guide plate (2), and the movable disk (8) is slidably connected to the outer wall of the base (1). A first motor (9) is fixedly connected to the rear end of the movable disk (8). A gear (10) is fixedly connected to the output end of the first motor (9). A rack (11) is meshed with the outer ring of the gear (10), and the rack (11) is fixedly connected to the base (1). A support column (13) is fixedly connected to the front end of the movable disk (8), and a groove plate (14) is fixedly connected to the front end of the support column (13).

3. The novel multi-roll combined seamless steel pipe rolling equipment according to claim 2, characterized in that: The rear end of the groove plate (14) is fixedly connected to a second motor (15), and the output end of the second motor (15) is fixedly connected to a rotating plate (16).

4. The novel multi-roll combined seamless steel pipe rolling equipment according to claim 3, characterized in that: Both ends of the rotating plate (16) are rotatably connected to inclined rods (17), and one end of the inclined rods (17) is rotatably connected to a sliding disk (18).

5. A novel multi-roll combined seamless steel pipe rolling equipment according to claim 2, characterized in that: The groove plate (14) is fixedly connected to a uniformly distributed guide block (19) at its rear end.

6. A novel multi-roll combined seamless steel pipe rolling mill according to claim 5, characterized in that: The guide block (19) has a sliding block (20) slidably connected to its outer wall, and the sliding block (20) is fixedly connected to the sliding disk (18).

7. A novel multi-roll combined seamless steel pipe rolling mill according to claim 4, characterized in that: The front end of the sliding disk (18) is fixedly connected to a clamping plate (21).

8. A novel multi-roll combined seamless steel pipe rolling mill according to claim 7, characterized in that: The clamping plate (21) is fixedly connected to the connecting plate (22) on the opposite side, and the connecting plates (22) are rotatably connected to each other by a rolling wheel (23).

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