Multi-roller rolling device for seamless tube
The seamless tube multi-roll rolling device solves the problem of rolling diverse specifications by adjusting the forming die and lubrication components, achieving high-efficiency production and low loss.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional rolling mills struggle to meet diverse product specifications when rolling large-diameter thin-walled tubes or small-diameter thick-walled tubes, and also suffer from high friction and high equipment wear.
The seamless tube multi-roll rolling device is adopted. The shape and position of the forming die are adjusted by components such as pneumatic cylinder, push rod, pull plate and fixed block. It is equipped with automatic lubrication components, including connecting column, oil injection hole, stop block, oil reservoir and ball, to form a lubricating film to reduce friction.
It enables rapid adjustment according to different specifications of seamless pipes, reduces production costs and equipment maintenance expenses, and improves production flexibility and steel pipe surface quality.
Smart Images
Figure CN224072998U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of seamless steel pipe production and processing technology, and in particular to a multi-roll rolling device for seamless pipes. Background Technology
[0002] With the rapid development of modern industry, the demand for seamless steel pipes in many fields such as petroleum, natural gas, power, and machinery manufacturing is increasing day by day, and higher requirements are being placed on their quality, precision, and performance. For example, oil and natural gas transportation pipelines require high-strength, highly corrosion-resistant seamless steel pipes; high-pressure boiler tubes require good high-temperature and high-pressure resistance as well as precise dimensional accuracy.
[0003] Multi-roll rolling allows for more thorough rolling and finishing of the steel pipe surface, reducing surface defects and improving surface finish. Simultaneously, increasing the number of rolls helps reduce rolling force, minimizing damage to the steel pipe surface and thus improving product surface quality.
[0004] Traditional rolling mills have certain limitations in the range of rolled product specifications. They are difficult to roll large-diameter thin-walled tubes or small-diameter thick-walled tubes, making it difficult to meet the market's demand for diversified product specifications. Therefore, a seamless tube multi-roll rolling device is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a seamless tube multi-roll rolling device, which aims to improve the problem that the existing technology cannot adjust the seamless tube according to different size requirements.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A seamless tube multi-roll rolling device includes a main unit, a slide rail fixedly connected to the inner wall of the main unit, a connecting block slidably connected to the outside of the slide rail, a slider fixedly connected to the top of the connecting block, a pneumatic cylinder fixedly connected to the inner wall of the slider, a push rod fixedly connected to the driving end of the pneumatic cylinder, pull plates rotatably connected to both ends of the push rod, a fixed block rotatably connected to the other end of the pull plate, a forming mold fixedly connected to the other end of the fixed block, two lubrication components fixedly connected to the inner wall of the slider, and a cooperating component fixedly connected to the outside of the main unit.
[0008] As a further description of the above technical solution:
[0009] The lubrication assembly includes connecting columns, two connecting columns are fixedly connected to the inner wall of the slider, an oil injection hole is fixedly connected to the outside of the connecting column, a stop is movably connected to the inner wall of the oil injection hole, a ball is rotatably connected to the inner wall of the connecting column, and an oil storage groove is opened inside the connecting column.
[0010] As a further description of the above technical solution:
[0011] The collaborative component includes a fixed plate, both of which are fixedly connected to the outside of the host. A motor is fixedly connected to the top of the fixed plate, a follower plate is fixedly connected to the drive end of the motor, and a slave plate is rotatably connected to the other end of the follower plate.
[0012] As a further description of the above technical solution:
[0013] The other end of the driven plate is rotatably connected to the outside of the slider, and the outside of the driven plate is slidably connected to the inner wall of the host.
[0014] As a further description of the above technical solution:
[0015] Both connecting posts are slidably connected to the two sides of the forming mold, and the outside of the forming mold is slidably connected to the inner wall of the slider;
[0016] As a further description of the above technical solution:
[0017] The pull plate is rotatably connected to a support plate, and the bottom of the support plate is fixedly connected to the inner wall of the slider.
[0018] As a further description of the above technical solution:
[0019] The top of the slider is rotatably connected to a connecting plate, the other end of the connecting plate is rotatably connected to two connecting plates, and the bottom of the connecting plates is rotatably connected to the inner wall of the main unit.
[0020] As a further description of the above technical solution:
[0021] The main unit has a feed inlet at one end and a discharge outlet at the other end.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, the forming mold is adjusted by components such as a pneumatic cylinder, push rod, pull plate and fixing block. The shape and position of the forming mold can be quickly adjusted according to the production needs of seamless tubes of different specifications. This makes the device adaptable to diverse product requirements, without the need for frequent mold changes, which greatly improves production flexibility and reduces production costs.
[0024] 2. In this utility model, during the rolling process, a large frictional force is generated between the raw material, the slider, and the steel pipe. The automatic lubrication assembly, composed of connecting column, oil injection hole, stop block, oil storage tank, and ball bearings, can drive the ball bearings to slide through the connecting column when the raw material enters, thereby carrying out the lubricating oil in the oil storage tank and forming a lubricating film between the raw material, the steel pipe, and the slider. This lubricating film can effectively reduce friction, reduce frictional wear between components, extend the service life of the slider and other related components, and reduce equipment maintenance costs. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of a seamless tube multi-roll rolling device proposed in this utility model;
[0026] Figure 2 This is a schematic diagram of the slider of a seamless tube multi-roll rolling device proposed in this utility model;
[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0028] Figure 4 This is a schematic diagram of the connecting column of a seamless tube multi-roll rolling device proposed in this utility model;
[0029] Figure 5 for Figure 4 Enlarged view of point B in the middle.
[0030] Legend:
[0031] 1. Main unit; 2. Slide rail; 3. Connecting block; 4. Slider; 5. Pneumatic cylinder; 6. Push rod; 7. Pull plate; 8. Support plate; 9. Fixing block; 10. Forming mold; 11. Connecting column; 12. Oil injection hole; 13. Stop block; 14. Oil storage tank; 15. Ball bearing; 16. Connecting plate; 17. Connecting plate; 18. Fixing plate; 19. Motor; 20. Follower plate; 21. Driven plate; 22. Discharge port; 23. Inlet port. Detailed Implementation
[0032] 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.
[0033] Reference Figures 1 to 3This utility model provides an embodiment of a seamless tube multi-roll rolling device, including a main unit 1, which serves as the main structure of the entire seamless tube multi-roll rolling device. A slide rail 2 is fixedly connected to the inner wall of the main unit 1. The slide rail 2 provides a stable guide track for the sliding of the connecting block 3, making the sliding of the connecting block 3 more stable and precise, and ensuring the accuracy of subsequent work. A connecting block 3 is slidably connected to the outside of the slide rail 2. The connecting block 3 connects the slide rail 2 and the slider 4, effectively connecting the movement of the slider 4 with the slide rail 2. A slider 4 is fixedly connected to the top of the connecting block 3. A pneumatic cylinder 5 is fixedly connected to the inner wall of the slider 4. A push rod 6 is fixedly connected to the driving end of the pneumatic cylinder 5. The push rod 6 moves linearly under the drive of the pneumatic cylinder 5, thereby driving the movement of subsequent components.
[0034] Both ends of the push rod 6 are rotatably connected to pull plates 7. The pull plates 7 can rotate under the drive of the push rod 6, converting the linear motion of the push rod 6 into a pulling force on the fixed block 9. The other end of the pull plate 7 is rotatably connected to the fixed block 9. The fixed block 9 is used to fix the forming mold 10 and adjust the position of the forming mold 10 under the action of the pull plate 7. The other end of the fixed block 9 is fixedly connected to the forming mold 10. The forming mold 10 is a key component that directly rolls the seamless tube raw material. Through its specific shape and structure, it can process the raw material into the required seamless tube shape. Two lubrication components are fixedly connected to the inner wall of the slider 4. The presence of the lubrication components can effectively reduce the friction between the seamless tube raw material and the slider 4 and other components during the rolling process, reduce the rolling force, improve the surface quality of the steel pipe, and protect the slider 4 and other components, extending their service life. The main unit 1 is externally fixedly connected to a cooperating component. The cooperating component can work in coordination with other components to ensure the orderly operation of the entire device.
[0035] The pull plate 7 is externally rotatably connected to a support plate 8. The support plate 8 provides support for the pull plate 7, ensuring the stability of the pull plate 7 during rotation, and at the same time sharing part of the force borne by the pull plate 7, improving the overall structural strength of the device. The bottom of the support plate 8 is fixedly connected to the inner wall of the slider 4, fixing the support plate 8 to the inner wall of the slider 4 so that it can stably support the pull plate 7.
[0036] A connecting plate 16 is rotatably connected to the top of the slider 4. The connecting plate 16 can rotate at the top of the slider 4, serving to connect the slider 4 and the connecting plate 17, and transmitting the movement of the slider 4 to the connecting plate 17. Two connecting plates 17 are rotatably connected to the other end of the connecting plate 16. The connecting plates 17 can move under the drive of the connecting plate 16, further ensuring the stability and accuracy of the slider 4 when sliding inside the main unit 1. The bottom of the connecting plate 17 is rotatably connected to the inner wall of the main unit 1. The rotatable connection between the connecting plate 17 and the inner wall of the main unit 1 allows the connecting plate 17 to rotate inside the main unit 1, cooperating with the movement of the slider 4.
[0037] Reference Figure 1 , Figure 4 and Figure 5 The lubrication assembly includes connecting posts 11. The two connecting posts 11 are externally fixedly connected to the inner wall of the slider 4. The connecting posts 11 serve as supports and connections, fixing components such as the oil injection hole 12 and the ball bearing 15 to the inner wall of the slider 4. The oil injection hole 12 is externally fixedly connected to the connecting posts 11. The oil injection hole 12 is used to inject lubricating oil into the oil reservoir 14 to ensure that there is enough lubricating material in the oil reservoir 14. The inner wall of the oil injection hole 12 is movably connected to a stop block 13. The stop block 13 can prevent lubricating oil from accidentally flowing out of the oil injection hole 12, and at the same time, it can be easily opened when oil injection is needed for oil injection operation.
[0038] The inner wall of the connecting column 11 is rotatably connected to a ball bearing 15. When the seamless tube material enters the device, it will drive the ball bearing 15 to rotate on the inner wall of the connecting column 11. During the rotation, the ball bearing 15 can carry out the lubricating oil in the oil storage tank 14, forming a lubricating film between the material and components such as the slider 4, effectively reducing friction. The connecting column 11 has an oil storage tank 14 inside, which is used to store lubricating oil and provide a source of lubricating material for the ball bearing 15.
[0039] Both connecting pillars 11 are slidably connected to the two sides of the forming mold 10. The slidable connection between the connecting pillars 11 and the forming mold 10 ensures that the lubrication component can always work in cooperation with the forming mold 10 when the position of the forming mold 10 is adjusted, so as to provide lubrication between the forming mold 10 and the raw material. The outside of the forming mold 10 is slidably connected to the inner wall of the slider 4. The sliding of the forming mold 10 on the inner wall of the slider 4 allows the forming mold 10 to be adjusted in position under the action of the slider 4 to meet different rolling requirements.
[0040] Reference Figure 1 , Figure 2 and Figure 4 The collaborative component includes two fixed plates 18, both of which are fixedly connected to the outside of the main unit 1. The fixed plates 18 serve to fix components such as the motor 19, ensuring the stability of the motor 19 and other components on the outside of the main unit 1. The top of the fixed plate 18 is fixedly connected to the motor 19, which serves as a power source to provide power output to the entire collaborative component and drive the follower plate 20 to rotate. The drive end of the motor 19 is fixedly connected to the follower plate 20, which rotates under the drive of the motor 19 and transmits the power of the motor 19 to the driven plate 21. The other end of the follower plate 20 is rotatably connected to the driven plate 21, which can move under the drive of the follower plate 20, thereby pulling the slider 4 to slide inside the main unit 1.
[0041] The other end of the driven plate 21 is rotatably connected to the outside of the slider 4. Through the rotatable connection with the slider 4, the driven plate 21 can transmit its own motion to the slider 4, causing the slider 4 to slide inside the main unit 1. The outside of the driven plate 21 is slidably connected to the inner wall of the main unit 1. The sliding of the driven plate 21 on the inner wall of the main unit 1 can ensure the stability and accuracy of its motion, and also provide a guiding effect for the sliding of the slider 4.
[0042] One end of the main unit 1 is provided with a feed port 23, which is used to put seamless tube raw materials into the main unit 1. It is the entrance for the raw materials to enter the rolling process. The other end of the main unit 1 is provided with a discharge port 22, which is used to output the finished seamless tube after rolling from the main unit 1. It is the exit for the finished product to leave the device.
[0043] Working principle: The main unit 1 is moved to the position where it needs to work. The raw material is put into the main unit 1 through the feed port 23. The motor 19 is turned on. The motor 19 drives the follower plate 20 to rotate. The rotation of the follower plate 20 causes the driven plate 21 to pull the slider 4 to slide along the slide rail 2 inside the main unit 1. At the same time, the pneumatic cylinder 5 is turned on. The pneumatic cylinder 5 causes the push rod 6 to move. The movement of the push rod 6 drives the pull plate 7 to rotate. The pull plate 7 adjusts the forming mold 10 through the fixing block 9 to adapt to different rolling requirements.
[0044] When the raw material enters the main unit 1, it pushes the ball bearings 15 on the connecting column 11 to slide. During the sliding process, the ball bearings 15 carry out the lubricating oil in the oil storage tank 14. The lubricating oil forms a lubricating film between the raw material and components such as the slider 4 and the forming die 10, effectively reducing friction, lowering rolling force, and improving the surface quality of the steel pipe. It also helps protect components such as the slider 4 and extend their service life. Finally, the seamless pipe finished product after rolling is output from the discharge port 22.
[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A seamless tube multi-roll rolling apparatus, comprising a main machine (1), characterized in that: The inner wall of the host (1) is fixedly connected to a slide rail (2), the outer side of the slide rail (2) is slidably connected to a connecting block (3), the top of the connecting block (3) is fixedly connected to a slider (4), the inner wall of the slider (4) is fixedly connected to a pneumatic cylinder (5), the driving end of the pneumatic cylinder (5) is fixedly connected to a push rod (6), both ends of the push rod (6) are rotatably connected to a pull plate (7), the other end of the pull plate (7) is rotatably connected to a fixing block (9), the other end of the fixing block (9) is fixedly connected to a forming mold (10), the inner wall of the slider (4) is fixedly connected to two lubrication components, and the outer side of the host (1) is fixedly connected to a cooperating component.
2. The seamless tube multi-roll rolling apparatus according to claim 1, characterized in that: The lubrication assembly includes connecting columns (11), two connecting columns (11) are fixedly connected to the inner wall of the slider (4), an oil injection hole (12) is fixedly connected to the outside of the connecting column (11), a stop (13) is movably connected to the inner wall of the oil injection hole (12), a ball (15) is rotatably connected to the inner wall of the connecting column (11), and an oil storage groove (14) is opened inside the connecting column (11).
3. The seamless tube multi-roll rolling apparatus according to claim 1, characterized in that: The collaborative component includes a fixed plate (18), both of which are fixedly connected to the outside of the host (1). A motor (19) is fixedly connected to the top of the fixed plate (18), and a follower plate (20) is fixedly connected to the drive end of the motor (19). A slave plate (21) is rotatably connected to the other end of the follower plate (20).
4. A seamless tube multi-roll rolling apparatus according to claim 3, characterized in that: The other end of the driven plate (21) is rotatably connected to the outside of the slider (4), and the outside of the driven plate (21) is slidably connected to the inner wall of the host (1).
5. A seamless tube multi-roll rolling apparatus according to claim 2, characterized in that: The two connecting columns (11) are slidably connected to the two sides of the forming mold (10), and the outside of the forming mold (10) is slidably connected to the inner wall of the slider (4).
6. A seamless tube multi-roll rolling apparatus according to claim 1, characterized in that: The pull plate (7) is rotatably connected to a support plate (8), and the bottom of the support plate (8) is fixedly connected to the inner wall of the slider (4).
7. A seamless tube multi-roll rolling apparatus according to claim 1, characterized in that: The top of the slider (4) is rotatably connected to a connecting plate (16), and the other end of the connecting plate (16) is rotatably connected to two connecting plates (17). The bottom of the connecting plate (17) is rotatably connected to the inner wall of the host (1).
8. A seamless tube multi-roll rolling apparatus according to claim 1, characterized in that: The host (1) has a feed inlet (23) at one end and a discharge outlet (22) at the other end.