Novel straightener for reactor internals

By designing a motor-driven reactor internal straightener, the problem of bending deformation after welding of round tubes was solved, realizing automated straightening, adapting to different diameters and degrees of bending, and improving straightening efficiency and quality.

CN223960345UActive Publication Date: 2026-03-03DALIAN DONGFANG YIPENG EQUIP MFG CO LTD
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Patent Information

Application Number
CN202520595277.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-01
Publication Date
2026-03-03
Estimated Expiration
2035-04-01

AI Technical Summary

Technical Problem

In existing technologies, round tubes are prone to bending and deformation after welding. Manual straightening is inefficient and relies on human experience. Simple mechanical equipment is difficult to adapt to different diameters and degrees of bending, resulting in limited straightening effects.

Method used

Design a reactor internals straightener driven by a motor. The circular tube is fixed by clamping bolts, and the moving seat is driven by a motor and lead screw. Combined with straightening wheels and adjusting studs, it can achieve automated straightening and adapt to circular tubes of different diameters and degrees of curvature.

Benefits of technology

It improves the efficiency and consistency of tube straightening, can adapt to different diameters and degrees of curvature, ensures uniform straightening force to eliminate bending, reduces operational difficulty, and improves product quality.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223960345U_ABST
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Abstract

The utility model relates to the field of straightening equipment, and discloses a novel reactor internal part straightener which comprises two bases, the two bases are distributed left and right, supporting tables are fixedly connected to the tops of the bases, outer rings are fixedly connected to the opposite sides of the tops of the two supporting tables, and the inner walls of the outer rings are rotationally connected with inner rings through bearings. Supporting seats are fixedly connected to the opposite sides of the tops of the two supporting plates, a lead screw is rotationally connected between the opposite side walls of the two supporting seats, a second motor is fixedly installed at the top of the left supporting plate, connecting plates are fixedly connected to the front side and the rear side of the top of the base, and a guide rod is fixedly connected between the tops of the left connecting plate and the right connecting plate; the moving seat is slidably connected between the outer walls of the two guide rods in a sleeving mode, the lead screw is in threaded fit with the moving seat, and the straightening mechanism is fixedly installed at the top of the moving seat. According to the utility model, the automatic straightening is realized through the driving of the motor, the working efficiency is greatly improved, the round pipe is subjected to uniform straightening force in the rotating process, the bending deformation is favorably eliminated, and the product quality is improved.
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Description

Technical Field

[0001] This utility model relates to the field of straightening equipment, specifically a novel reactor internals straightener. Background Technology

[0002] In industrial production, round tubes are a common structural material and are widely used in various equipment and devices. However, during the manufacturing process of round tubes, especially after welding, they often undergo bending deformation due to thermal stress and other factors.

[0003] Currently, manual straightening or simple mechanical straightening equipment is mostly used. Manual straightening is inefficient, and the straightening effect often depends on the operator's experience and skill level, making it difficult to guarantee consistency. While simple mechanical straightening equipment improves straightening efficiency to some extent, its simple structure and single function often make it difficult to adapt to round pipes of different diameters and degrees of curvature, and the straightening effect is limited. Utility Model Content

[0004] To overcome the above-mentioned shortcomings, this utility model provides a novel reactor internals straightener.

[0005] The technical solution adopted by this utility model is as follows:

[0006] A novel reactor internals straightener includes a base with two bases distributed horizontally. Support platforms are fixedly connected to the top of the bases. Outer rings are fixedly connected to the opposite sides of the tops of the two support platforms. Inner rings are rotatably connected to the inner walls of the outer rings via bearings. The opposite ends of the two inner rings protrude from the outer rings. Three fixing plates are fixedly connected to the opposite ends of the two inner rings, distributed at equal angles. Clamping bolts are threaded onto the outer walls of the fixing plates, with one end of the clamping bolt facing the center of the inner ring. A circular tube is inserted between the two inner rings, with the clamping bolt pressing against the outer wall of the circular tube. The two support plates... Support seats are fixedly connected to opposite sides of the top. A lead screw is rotatably connected between the opposite side walls of the two support seats. The left end of the lead screw passes through the outer wall of the left support seat. Motor 2 is fixedly installed on the top of the left support plate. The right end of the output shaft of motor 2 is fixedly connected to the left end of the lead screw. Connecting plates are fixedly connected to the front and rear sides of the top of the base. A guide rod is fixedly connected between the tops of the left and right connecting plates. The moving seat is slidably sleeved between the outer walls of the two guide rods. The lead screw passes through the middle of the side wall of the moving seat. The lead screw and the moving seat are threaded together. A straightening mechanism is fixedly installed on the top of the moving seat.

[0007] The outer wall of the right end of the inner ring on the right side is fixedly connected to pulley one, the middle of the inner side of the support platform is fixedly connected to the support plate, the top of the right support plate is fixedly installed with motor one, the right end of the output shaft of motor one is fixedly connected to pulley two, and a belt is sleeved between pulley two and the outer wall of pulley one.

[0008] The straightening mechanism includes two mounting plates, one in front of the other, which are fixedly connected to the front and rear sides of the top of the movable base. A vertical plate is fixedly connected to the top of each mounting plate, and a top plate is fixedly connected between the tops of the two vertical plates. Sliding holes are formed in the middle of the opposite sidewalls of the two vertical plates, extending vertically. Two straightening wheels are positioned between the two mounting plates, one in front of the other, and the front end of each straightening wheel is fixedly connected to a rotating shaft, which is rotatably connected to the adjacent mounting plate. A second straightening wheel is positioned between the two vertical plates, with rotating shafts fixedly connected to its front and rear ends. The two rotating shafts extend into two sliding holes, and pulleys are rotatably connected to the outer walls of their opposite ends, slidingly engaging with the sliding holes. A movable frame is positioned above the second straightening wheel, with its front and rear ends extending downwards and rotatably connected to the two rotating shafts. An adjusting stud is rotatably connected to the top of the movable frame, penetrating the top of the top plate and threadedly engaging with it. A throttle handle is fixedly connected to the top of the adjusting stud.

[0009] The beneficial effects of this utility model are:

[0010] This invention achieves automated straightening through motor drive, greatly improving work efficiency. By adjusting the height and position of the straightening wheels, it can adapt to round pipes of different diameters and degrees of curvature, thus improving the versatility of the equipment.

[0011] The round tube is subjected to a uniform straightening force during rotation, which helps to eliminate bending deformation and improve product quality. The design of the clamping bolts and adjusting studs makes the equipment easier and faster to operate, reducing the difficulty of operation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0014] Figure 3 yes Figure 1 Enlarged view at point B in the middle;

[0015] Figure 4 yes Figure 1 The left view;

[0016] Figure 5 yes Figure 4 Cross-sectional view at CC.

[0017] The reference numerals in all the attached drawings are as follows: 1. Base; 2. Support platform; 3. Outer ring; 4. Bearing; 5. Inner ring; 6. Fixing plate; 7. Clamping bolt; 8. Pulley 1; 9. Support plate; 10. Motor 1; 11. Pulley 2; 12. Belt; 13. Round tube; 14. Support seat; 15. Lead screw; 16. Connecting plate; 17. Guide rod; 18. Motor 2; 19. Moving seat; 20. Mounting plate; 21. Vertical plate; 22. Top plate; 23. Sliding hole; 24. Rotating shaft 1; 25. Straightening wheel 1; 26. Moving frame; 27. Straightening wheel 2; 28. Rotating shaft 2; 29. ​​Pulley; 30. Adjusting stud; 31. Turning handle. Detailed Implementation

[0018] like Figure 1-5 As shown: A novel reactor internal straightener includes a base 1, with two bases 1 distributed horizontally. A support platform 2 is fixedly connected to the top of each base 1. Outer rings 3 are fixedly connected to the opposite sides of the tops of the two support platforms 2. Inner rings 5 ​​are rotatably connected to the inner walls of the outer rings 3 via bearings 4. The opposite ends of the two inner rings 5 ​​protrude from the outer rings 3. Three fixing plates 6 are fixedly connected to the opposite ends of the two inner rings 5, distributed at equal angles. Clamping bolts 7 are threaded onto the outer walls of the fixing plates 6, with one end of the clamping bolts 7 facing the center of the inner ring 5. A circular tube 13 is inserted between the two inner rings 5, and the clamping bolts 7 abut against the outer wall of the circular tube 13. The tops of the two support plates 9 are... Each support base 14 is fixedly connected to a support base 14. A lead screw 15 is rotatably connected between the opposite side walls of the two support bases 14. The left end of the lead screw 15 passes through the outer wall of the left support base 14. A motor 18 is fixedly installed on the top of the left support plate 9. The right end of the output shaft of the motor 18 is fixedly connected to the left end of the lead screw 15. Connecting plates 16 are fixedly connected to the front and rear sides of the top of the base 1. A guide rod 17 is fixedly connected between the tops of the left and right connecting plates 16. The movable seat 19 is slidably sleeved between the outer walls of the two guide rods 17. The lead screw 15 passes through the middle of the side wall of the movable seat 19. The lead screw 15 and the movable seat 19 are threaded together. A straightening mechanism is fixedly installed on the top of the movable seat 19.

[0019] The outer wall of the right end of the inner ring 5 is fixedly connected to pulley 8, the middle of the inner side of the support platform 2 is fixedly connected to the support plate 9, the top of the right support plate 9 is fixedly installed with motor 10, the right end of the output shaft of motor 10 is fixedly connected to pulley 2 11, and belt 12 is sleeved between pulley 2 11 and the outer wall of pulley 8.

[0020] The straightening mechanism includes two mounting plates 20, one in front of the other, which are fixedly connected to the front and rear top sides of the movable base 19, respectively. Vertical plates 21 are fixedly connected to the top of each mounting plate 20, and a top plate 22 is fixedly connected between the tops of the two vertical plates 21. Sliding holes 23 are formed in the middle of the opposite sidewalls of the two vertical plates 21, extending vertically. Two straightening wheels 25 are located between the two mounting plates 20, distributed horizontally. A rotating shaft 24 is fixedly connected to the front end of each straightening wheel 25, and the rotating shaft 24 is rotatably connected to the adjacent mounting plate 20. A second straightening wheel is located between the two vertical plates 21. 27. The front and rear ends of the straightening wheel 27 are fixedly connected to the rotating shaft 28. The two rotating shafts 28 extend into the two sliding holes 23 respectively. The outer walls of the opposite ends of the two rotating shafts 28 are rotatably connected to the pulleys 29. The pulleys 29 slide with the sliding holes 23. The straightening wheel 27 has a movable frame 26 above it. The front and rear ends of the movable frame 26 extend downward. The front and rear ends of the movable frame 26 are rotatably connected to the two rotating shafts 28 respectively. The top of the movable frame 26 is rotatably connected to the adjusting stud 30. The adjusting stud 30 passes through the top of the top plate 22. The adjusting stud 30 is threaded with the top plate 22. The top of the adjusting stud 30 is fixedly connected to the handle 31.

[0021] First, the round tube 13, which has been bent and deformed after welding, is inserted between the two inner rings 5. By rotating the clamping bolt 7, one end of it is pressed against the outer wall of the round tube 13, thereby fixing the round tube between the inner rings 5 ​​and ensuring that the round tube will not move or fall off during the straightening process.

[0022] When motor 10 is started, the output shaft of motor 10 drives pulley 2 11 to rotate. Through belt 12, pulley 8 rotates accordingly, which in turn drives the inner ring 5 on the right side and the fixed round tube 13 to rotate. In this way, the round tube can be evenly stressed during the straightening process, improving the straightening effect.

[0023] When motor 18 is started, the output shaft of motor 18 drives the lead screw 15 to rotate. Since the lead screw 15 is threadedly engaged with the moving seat 19 and the moving seat 19 is slidably sleeved on the guide rod 17, the rotation of the lead screw 15 will drive the moving seat 19 and the straightening mechanism on its top to move left and right along the guide rod 17.

[0024] Before straightening, the height of the moving frame 26 and the straightening wheel 27 can be adjusted by rotating the handle 31 on the adjusting stud 30. Since the pulley 29 and the sliding hole 23 are in sliding fit, the moving frame 26 can move up and down to accommodate round tubes of different diameters. The straightening wheel 25 is rotatably connected to the mounting plate 20 through the rotating shaft 24, and is always kept on the same horizontal plane of the round tube.

[0025] As the movable seat 19 moves, the first straightening wheel 25 and the second straightening wheel 27 gradually contact and squeeze the curved part of the round tube 13. Since the round tube is rotating, the curved part will be subjected to a uniform straightening force, thus gradually restoring its original shape.

[0026] This utility model only protects the mechanical parts; the functions implemented by the software control part are not within the scope of protection of this utility model.

Claims

1. A novel reactor internals straightener characterized in that, The utility model provides a kind of straightening mechanism, including base (1), two base (1) left and right distribution, the top of base (1) is fixedly connected support table (2), the top of two support table (2) is fixedly connected outer ring (3) in opposite sides, the inner wall of outer ring (3) is rotatably connected inner ring (5) by bearing (4), two inner ring (5) are protruded outer ring (3) in opposite sides, two inner ring (5) are fixedly connected three fixed plates (6) in opposite sides, three fixed plates (6) are distributed at equal angle, the outer wall of fixed plate (6) is threadedly connected clamping bolt (7), one end of clamping bolt (7) is towards the center of inner ring (5), circular tube (13) is inserted between two inner ring (5), clamping bolt (7) is abutted circular tube (13) outer wall, the top of two support plates (9) is fixedly connected support seat (14) in opposite sides, opposite side wall between two support seat (14) is rotatably connected screw rod (15), the left end of screw rod (15) is penetrated and comes out the outer wall of left support seat (14), the top of left support plate (9) is fixedly installed motor two (18), the output shaft right end of motor two (18) is fixedly connected with the left end of screw rod (15), the top of base (1) is fixedly connected connecting plate (16) in front and back sides, the top between left and right two connecting plates (16) is fixedly connected guide rod (17), moving seat (19) is slidably sleeved between the outer wall of two guide rods (17), screw rod (15) penetrates the lateral wall middle portion of moving seat (19), screw rod (15) is threadedly cooperated with moving seat (19), the top of moving seat (19) is fixedly installed straightening mechanism.

2. A novel reactor internals straightener according to claim 1, characterized in that, The right end outer wall of right inner ring (5) is fixedly connected pulley one (8), the inner side middle portion of support table (2) is fixedly connected support plate (9), the top of right support plate (9) is fixedly installed motor one (10), the output shaft right end of motor one (10) is fixedly connected pulley two (11), pulley two (11) and pulley one (8) between the outer wall of sleeve belt (12).

3. A novel reactor internals straightener as claimed in claim 1, wherein, The straightening mechanism comprises mounting plates (20), two mounting plates (20) are arranged front and back, the two mounting plates (20) are fixedly connected to the top front and back sides of the moving seat (19) respectively, the top of the mounting plate (20) is fixedly connected with a vertical plate (21), the top of the two vertical plates (21) is fixedly connected with a top plate (22), the middle part of the opposite side walls of the two vertical plates (21) is provided with a sliding hole (23), the sliding hole (23) extends up and down, the two mounting plates (20) are provided with two straightening wheels (25), the two straightening wheels (25) are arranged left and right, the front end of the straightening wheel (25) is fixedly connected with a rotating shaft (24), the rotating shaft (24) is rotatably connected with the mounting plate (20) close to it, the two vertical plates (21) are provided with a straightening wheel (27), the front and back ends of the straightening wheel (27) are fixedly connected with rotating shafts (28), the two rotating shafts (28) extend into the two sliding holes (23) respectively, the outer walls of the opposite ends of the two rotating shafts (28) are rotatably connected with pulleys (29), the pulleys (29) are in sliding connection with the sliding holes (23), the upper side of the straightening wheel (27) is provided with a moving frame (26), the front and back ends of the moving frame (26) extend downward, the front and back ends of the moving frame (26) are rotatably connected with the two rotating shafts (28) respectively, the top of the moving frame (26) is rotatably connected with an adjusting stud (30), the adjusting stud (30) penetrates through the top of the top plate (22), the adjusting stud (30) is in threaded connection with the top plate (22), and the top end of the adjusting stud (30) is fixedly connected with a rotating handle (31).