Nested telescopic alloy steel pipe straightening mechanism
By using a nested telescopic alloy steel pipe straightening mechanism, which combines a servo motor-driven horizontal threaded rod and a hydraulic rod, the instability problem of existing steel pipe straightening machines is solved. This provides a stable and safe solution for straightening steel pipes with larger diameters, addressing the stability and safety issues of existing steel pipe straightening machines when straightening large and heavy steel pipes. Stable positioning and horizontal feeding are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI JUXUAN NEW MATERIALS CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-19
AI Technical Summary
Existing steel pipe straightening machines cannot stably feed horizontally when straightening steel pipes with large diameters and heavy weights, and the steel pipes are prone to deviation, posing a safety hazard.
A nested telescopic alloy steel pipe straightening mechanism is adopted. A servo motor drives a horizontal threaded rod, which, together with a positioning hydraulic rod and a horizontal hydraulic rod, achieves stable positioning and horizontal feeding of the steel pipe. The end of the steel pipe is locked by a nested ring and a positioning block. With the help of a support mechanism and a horizontal drive mechanism, the stability of the feeding process is ensured.
It achieves stable positioning and horizontal feeding of steel pipes of different diameters, ensuring the safety of the feeding process, avoiding steel pipe deviation, and improving the stability and safety of steel pipe straightening.
Smart Images

Figure CN224254054U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel pipe straightening machine technology, specifically a nested telescopic alloy steel pipe straightening mechanism. Background Technology
[0002] A steel pipe straightening machine is an industrial device used to correct shape defects such as bending and ovality in steel pipes. It is widely used in petroleum, chemical, machinery manufacturing, construction and other fields. It applies pressure to the steel pipe through multiple sets of rollers, so that it gradually restores its straightness through repeated bending and deformation.
[0003] Existing steel pipe straightening machines cannot stably feed large and heavy steel pipes horizontally, and due to the weight of the pipes, they are prone to deviation during the initial feeding process, posing a certain degree of danger. To address these issues, an innovative design based on existing steel pipe straightening machines is urgently needed. Utility Model Content
[0004] The purpose of this utility model is to provide a nested telescopic alloy steel pipe straightening mechanism to solve the problems mentioned in the background art, such as the inability of existing steel pipe straightening machines to stably feed the steel pipe horizontally when straightening steel pipes with large diameter and heavy weight, and the tendency for the steel pipe to deviate during the feeding process due to its weight, which poses a certain danger.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a nested telescopic alloy steel pipe straightening mechanism, comprising a steel pipe straightening machine, a base plate fixed to one side of the steel pipe straightening machine, a servo motor installed at the end of the base plate, a horizontal threaded rod installed at the output end of the servo motor, the horizontal threaded rod being rotatably installed in a track groove via a bearing seat, the track groove being opened on the base plate, the horizontal threaded rod being connected to a support plate, a resistance-reducing roller being rotatably installed at the bottom end of the support plate, the top surface of the support plate being connected and fixed to the bottom surface of the mounting plate, a reinforcing plate being fixed to the side of the mounting plate, a positioning block being installed on one side of the top of the mounting plate, a wear-resistant skin being fixed to the surface of the positioning block, a horizontal hydraulic rod being fixedly installed on the top of the mounting plate outside the positioning block, the end of the horizontal hydraulic rod being connected and fixed to one side of a nested ring, a positioning hydraulic rod being installed on the nested ring, and an outer positioning plate being fixed to the end of the positioning hydraulic rod.
[0006] Preferably, the servo motor and the horizontal threaded rod are both horizontally symmetrically distributed about the center of the support plate, the horizontal threaded rod is threadedly connected to the support plate, and the support plate is symmetrically distributed about the center of the mounting plate.
[0007] Preferably, the front view cross-sectional shape of the mounting plate is "L" shaped, and reinforcing plates are symmetrically installed on both sides of the mounting plate.
[0008] Preferably, the positioning block is configured as an elongated frustum shape, the center of the positioning block and the center of the nested ring are on the same horizontal straight line, and a horizontal hydraulic rod is provided on one side of the nested ring at an equal angle with respect to the center of the nested ring.
[0009] Preferably, the positioning hydraulic rod and the outer positioning plate are both distributed at equal angles about the center of the nested ring, and a soft anti-slip pad is fixed on the surface of the outer positioning plate.
[0010] Preferably, a vertical hydraulic rod is fixed to the top end of the horizontal portion of the mounting plate, and a load-bearing plate is fixed to the top of the vertical hydraulic rod. An arc-shaped groove is formed in the middle of the top surface of the load-bearing plate, and the center of the load-bearing plate and the center of the nested ring are on the same vertical plane.
[0011] Compared with the prior art, the beneficial effects of this utility model are: the nested telescopic alloy steel pipe straightening mechanism adopts a new structural design. Through the nested telescopic positioning mechanism, it can position the ends of steel pipes of different diameters. In addition, with the support mechanism and the horizontal drive mechanism, it can stably feed steel pipes with larger diameters and heavier weights horizontally.
[0012] 1. The outer positioning plate is driven to fit against the outer wall of the steel pipe by the positioning hydraulic rod, and the nesting ring, positioning hydraulic rod and outer positioning plate are moved horizontally by the horizontal hydraulic rod, so that the end of the steel pipe is fitted on the outside of the positioning block and wear-resistant skin. With the help of the vertical hydraulic rod and the load-bearing plate, the end of the steel pipe is locked to ensure the stability of the steel pipe during feeding.
[0013] 2. The horizontal threaded rod is driven to rotate by a servo motor. The horizontal threaded rod drives the support plate, the resistance-reducing roller, the mounting plate and the reinforcing plate to move horizontally along the track groove through the threaded connection relationship, so as to feed the steel pipe locked by the nested telescopic positioning mechanism horizontally. Attached Figure Description
[0014] Figure 1 This is a front view structural diagram of the present invention;
[0015] Figure 2 This is a front view sectional view of the base plate, mounting plate, positioning block, and nested ring of this utility model;
[0016] Figure 3 This is a side view diagram of the positioning block and nested ring structure of this utility model;
[0017] Figure 4 This is a side view of the vertical hydraulic rod and load-bearing plate of this utility model.
[0018] In the diagram: 1. Steel pipe straightening machine; 2. Base plate; 3. Servo motor; 4. Horizontal threaded rod; 5. Track groove; 6. Support plate; 7. Resistance reducing roller; 8. Mounting plate; 9. Reinforcing plate; 10. Positioning block; 11. Wear-resistant skin; 12. Horizontal hydraulic rod; 13. Nested ring; 14. Positioning hydraulic rod; 15. Outer positioning plate; 16. Vertical hydraulic rod; 17. Load-bearing plate. Detailed Implementation
[0019] 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.
[0020] Please see Figure 1-4 This utility model provides a technical solution: a nested telescopic alloy steel pipe straightening mechanism, including a steel pipe straightening machine 1, a base plate 2, a servo motor 3, a horizontal threaded rod 4, a track groove 5, a support plate 6, a resistance-reducing roller 7, a mounting plate 8, a reinforcing plate 9, a positioning block 10, a wear-resistant skin 11, a horizontal hydraulic rod 12, a nested ring 13, a positioning hydraulic rod 14, an outer positioning plate 15, a vertical hydraulic rod 16, and a load-bearing plate 17. The base plate 2 is fixed to one side of the steel pipe straightening machine 1, and a servo motor 3 is installed at the end of the base plate 2. The horizontal threaded rod 4 is installed at the output end of the servo motor 3, and the horizontal threaded rod 4 is rotated through a bearing seat. The track groove 5 is installed in the track groove 5, which is opened on the base plate 2. The horizontal threaded rod 4 is connected to the support plate 6. The bottom end of the support plate 6 is rotatably installed with the drag-reducing roller 7. The top surface of the support plate 6 is connected and fixed to the bottom surface of the mounting plate 8. The side of the mounting plate 8 is fixed with the reinforcing plate 9. The top side of the mounting plate 8 is installed with the positioning block 10. The surface of the positioning block 10 is fixed with the wear-resistant skin 11. The top of the mounting plate 8 outside the positioning block 10 is fixed with the horizontal hydraulic rod 12. The end of the horizontal hydraulic rod 12 is connected and fixed to one side of the nested ring 13. The nested ring 13 is installed with the positioning hydraulic rod 14. The end of the positioning hydraulic rod 14 is fixed with the outer positioning plate 15.
[0021] In this example, the servo motor 3 and the horizontal threaded rod 4 are both horizontally symmetrical about the center of the support plate 6. The horizontal threaded rod 4 is threadedly connected to the support plate 6. The support plate 6 is symmetrically distributed about the center of the mounting plate 8. The above structural design enables the horizontal threaded rod 4 to stably drive the support plate 6 to move horizontally and linearly with the mounting plate 8.
[0022] The front view of the mounting plate 8 is L-shaped. Reinforcing plates 9 are symmetrically installed on both sides of the mounting plate 8. The above structural design makes the mounting plate 8 structurally strong and will not deform during operation.
[0023] The positioning block 10 is designed as a slender frustum shape. The center of the positioning block 10 and the center of the nested ring 13 are on the same horizontal straight line. A horizontal hydraulic rod 12 is provided on one side of the nested ring 13 at an equal angle to the center of the nested ring 13. The above structural design enables the positioning block 10 to be stably inserted into the end of the steel pipe. The horizontal hydraulic rod 12 can stably drive the nested ring 13 and the mounting structure on it to move horizontally, and ensure that the positioning block 10 can cooperate with the structure mounted on the nested ring 13 to stably position the end of the steel pipe.
[0024] The positioning hydraulic rod 14 and the outer positioning plate 15 are both distributed at equal angles about the center of the nested ring 13. A soft anti-slip pad is fixed on the surface of the outer positioning plate 15. The above structural design enables the positioning hydraulic rod 14 to drive the outer positioning plate 15 to fit tightly against the outer wall of the end of the steel pipe and center it.
[0025] A vertical hydraulic rod 16 is fixed to the top end of the horizontal part of the mounting plate 8. A load-bearing plate 17 is fixed to the top of the vertical hydraulic rod 16. An arc-shaped groove is opened in the middle of the top surface of the load-bearing plate 17. The center of the load-bearing plate 17 and the center of the nested ring 13 are on the same vertical plane. The above structural design can stably bear the load and ensure the stable positioning of the heavy steel pipe.
[0026] Working principle: In use, one end of the steel pipe is lifted and inserted into the center of the nested ring 13. The vertical hydraulic rod 16 is extended to push the load-bearing plate 17 upward until it contacts the steel pipe, supporting the pipe. Then, the positioning hydraulic rods 14, which are distributed at equal angles, are extended synchronously. The positioning hydraulic rods 14 drive the outer positioning plate 15 to fit tightly against the outer wall of the steel pipe, centering and locking the pipe. Subsequently, the horizontal hydraulic rods 12, which are distributed at equal angles, are shortened synchronously, causing the nested ring 13, the positioning hydraulic rods 14, and the outer positioning plate 15 to move horizontally and linearly towards the positioning block 10. Figure 2 The outer positioning plate 15 drives the locked end of the steel pipe to move to the left synchronously until it is fitted onto the wear-resistant skin 11 on the outside of the positioning block 10 at the end of the steel pipe. The edge of the end of the steel pipe is tightly fitted with the wear-resistant skin 11, and the horizontal hydraulic rod 12 is controlled to stop shortening and lock.
[0027] The servo motor 3 drives the symmetrically distributed horizontal threaded rods 4 to rotate synchronously. The horizontal threaded rods 4 use threaded connections to drive the support plate 6, along with the mounting plate 8, positioning block 10, nested ring 13, positioning hydraulic rod 14, and outer positioning plate 15, to rotate along... Figure 2The track groove 5 slides steadily to the right, pushing the steel pipe to move steadily to the right, allowing the other end of the steel pipe to enter the steel pipe straightening machine 1. Then, the positioning hydraulic rod 14 can be controlled to shorten, and the outer positioning plate 15 moves away from the outer wall of the steel pipe. The steel pipe straightening machine 1 is started, and the servo motor 3 continuously controls the horizontal threaded rod 4 to rotate steadily, providing continuous and stable feeding to the steel pipe. At the same time, since the outer positioning plate 15 is separated from the outer wall of the steel pipe, the steel pipe can rotate steadily under the drive of the internal mechanism of the steel pipe straightening machine 1 during the feeding process. The end of the steel pipe rotates slowly relative to the wear-resistant skin 11, ensuring the normal straightening action of the steel pipe straightening machine 1.
[0028] 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 nested telescopic alloy steel pipe straightening mechanism, comprising a steel pipe straightening machine (1), characterized in that: The steel pipe straightening machine (1) has a base plate (2) fixed on one side. A servo motor (3) is installed at the end of the base plate (2). A horizontal threaded rod (4) is installed at the output end of the servo motor (3). The horizontal threaded rod (4) is rotatably installed in the track groove (5) through a bearing seat. The track groove (5) is opened on the base plate (2). The horizontal threaded rod (4) is connected to the support plate (6). A drag-reducing roller (7) is rotatably installed at the bottom end of the support plate (6). The top surface of the support plate (6) is connected and fixed to the bottom surface of the mounting plate (8). A reinforcing plate (9) is fixed to the side of the mounting plate (8). A positioning block (10) is installed on one side of the top of the mounting plate (8). A wear-resistant skin (11) is fixed to the surface of the positioning block (10). A horizontal hydraulic rod (12) is fixed to the top of the mounting plate (8) outside the positioning block (10). The end of the horizontal hydraulic rod (12) is connected and fixed to one side of the nested ring (13). A positioning hydraulic rod (14) is installed on the nested ring (13). An outer positioning plate (15) is fixed to the end of the positioning hydraulic rod (14).
2. The nested telescopic alloy steel pipe straightening mechanism according to claim 1, characterized in that: The servo motor (3) and the horizontal threaded rod (4) are both horizontally symmetrically distributed about the center of the support plate (6). The horizontal threaded rod (4) is threadedly connected to the support plate (6). The support plate (6) is symmetrically distributed about the center of the mounting plate (8).
3. The nested telescopic alloy steel pipe straightening mechanism according to claim 1, characterized in that: The mounting plate (8) has an "L" shaped cross section when viewed from the front, and reinforcing plates (9) are symmetrically installed on both sides of the mounting plate (8).
4. The nested telescopic alloy steel pipe straightening mechanism according to claim 1, characterized in that: The positioning block (10) is configured as a slender frustum shape. The center of the positioning block (10) and the center of the nested ring (13) are on the same horizontal straight line. A horizontal hydraulic rod (12) is provided on one side of the nested ring (13) at an equal angle to the center of the nested ring (13).
5. The nested telescopic alloy steel pipe straightening mechanism according to claim 1, characterized in that: The positioning hydraulic rod (14) and the outer positioning plate (15) are both distributed at equal angles about the center of the nested ring (13), and a soft anti-slip pad is fixed on the surface of the outer positioning plate (15).
6. The nested telescopic alloy steel pipe straightening mechanism according to claim 1, characterized in that: A vertical hydraulic rod (16) is fixed at the top end of the horizontal part of the mounting plate (8), and a load-bearing plate (17) is fixed at the top of the vertical hydraulic rod (16). An arc-shaped groove is provided in the middle of the top surface of the load-bearing plate (17), and the center of the load-bearing plate (17) and the center of the nested ring (13) are on the same vertical plane.