Steel pipe cutting device for testing low-temperature impact performance of steel pipe

Abstract

The utility model belongs to the technical field of cutting devices, and discloses a steel pipe cutting device for testing low-temperature impact performance of a steel pipe, which comprises a bottom plate, a workbench and a vertical plate are arranged on the bottom plate at intervals, a fixed pipe is horizontally arranged between the workbench and the vertical plate, the fixed pipe is rotatably sleeved with a rotating pipe, and a driving assembly is arranged on the vertical plate. A mounting seat is arranged on the rotating pipe, guide grooves are formed in the mounting seat and the workbench, a cutting assembly is arranged on the workbench, an arc-shaped plate is further arranged between the workbench and the vertical plate and located below the rotating pipe, and a collecting box is arranged on the lowermost side of the arc-shaped plate. The cutting assembly cuts the steel pipe. And after cutting is completed, the driving assembly drives the rotating pipe and the mounting base to rotate, in the rotating process, the cut steel pipe falls onto the arc-shaped plate from the mounting base, and the arc-shaped plate guides the steel pipe, so that the steel pipe slides into the collecting box to be collected. And workers do not need to manually take down the cut steel pipe, so that the labor intensity of the workers is reduced.

Description

Technical Field

[0001] This utility model relates to the field of cutting device technology, and in particular to a steel pipe cutting device for testing the low-temperature impact performance of steel pipes. Background Technology

[0002] Impact testing is a method used to determine the safety, reliability, and effectiveness of military and civilian equipment when subjected to external impacts or forces. Low-temperature impact testing involves storing the specimen in a cryogenic medium for a specific time, then quickly removing it once the required temperature has been reached to complete the impact test. Low-temperature impact testing is an important method for evaluating the mechanical properties of materials in low-temperature environments. It primarily examines a material's ability to resist impact loads under specific low-temperature conditions, playing a crucial role in ensuring the safety and reliability of engineering structures and products used in low-temperature environments. When testing the low-temperature impact performance of steel pipes, the steel pipe needs to be cut into multiple specimens, and each section is tested. The test values ​​are then compiled and processed.

[0003] A steel pipe cutting device is disclosed in Chinese utility model patent with publication number CN219211799U, which includes a cutting table. A pipe groove is provided at the top of the cutting table along the central axis of the length direction. A cutting mechanism is installed on the cutting table on one side of the pipe groove, and the cutting mechanism is located on the top side of the cutting table. The steel pipe is placed in the pipe groove, and then the cutting mechanism cuts the steel pipe.

[0004] Regarding the aforementioned technologies, the inventors believe that the following drawbacks exist: When the above-mentioned device cuts steel pipes, each cut requires a worker to remove the cut steel pipe from the pipe groove. This repetitive manual operation not only increases the labor intensity of workers but also has low efficiency. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a steel pipe cutting device for testing the low-temperature impact performance of steel pipes.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a steel pipe cutting device for testing the low-temperature impact performance of steel pipes, comprising a base plate, a worktable and a vertical plate spaced apart on the base plate, a fixed pipe horizontally arranged between the worktable and the vertical plate, a rotating pipe rotatably sleeved on the fixed pipe, a driving component for driving the rotating pipe to rotate on the vertical plate, a mounting seat on the rotating pipe, guide grooves opened on both the mounting seat and the worktable, a cutting component for cutting steel pipes arranged on the worktable, an arc plate also arranged between the worktable and the vertical plate, the arc plate being located below the rotating pipe, and a collection box arranged on the lowest side of the arc plate.

[0007] By adopting the above technical solution, which includes a workbench, upright plate, rotating tube, drive assembly, mounting base, curved plate, and collection box, the steel pipe is first placed in the guide groove on the workbench during cutting. Then, the steel pipe is pushed, causing a portion of its body to move onto the guide groove of the mounting base. The cutting assembly then cuts the steel pipe. After cutting, the drive assembly drives the rotating tube to rotate, causing the mounting base to rotate around the axis of the rotating tube. During rotation, the cut steel pipe falls from the mounting base onto the curved plate, which guides the pipe to slide into the collection box for collection. This eliminates the need for manual removal of the cut steel pipe, reducing labor intensity and increasing efficiency.

[0008] Furthermore, the mounting base has several graduated grooves along its length, and sliding grooves are provided on both sides of the guide groove. Sliding blocks are slidably arranged in the sliding grooves, and a baffle is provided on both sliding blocks.

[0009] By adopting the above technical solution, a scale groove, a sliding block, and a baffle are set. The sliding baffle and sliding block are slidable, and the sliding position of the baffle is adjusted according to the scale groove reading. When moving the steel pipe, the end of the steel pipe contacts the baffle before cutting, thereby controlling the length of the cut steel pipe.

[0010] Furthermore, a mounting block is provided on one side of the baffle, and a threaded hole is provided on the mounting block. A threaded rod is spirally provided in the threaded hole. The lower end of the threaded rod is located in the sliding groove and is provided with a pressure block, while the upper end is located above the mounting block and is provided with a handle.

[0011] By adopting the above technical solution, an installation block, a threaded rod, a pressure block, and a handle are set up. Rotating the handle drives the threaded rod to rotate. When the threaded rod rotates, it moves relative to the installation block, which in turn drives the pressure block to move. When the bottom of the pressure block abuts against the bottom of the slide groove, the positions of the pressure block, the threaded rod, the installation block, and the baffle are fixed.

[0012] Furthermore, the cutting assembly includes two columns spaced apart on the worktable, a lifting platform slidably mounted on the two columns, two fixed plates horizontally spaced apart on the lifting platform, a rotating shaft horizontally rotatably mounted between the two fixed plates, a saw blade mounted on the rotating shaft, a rotating motor mounted on the lifting platform, the output shaft of the rotating motor connected to the rotating shaft, and the mounting base spaced apart from the worktable.

[0013] By adopting the above technical solution, a column, a lifting platform, a saw blade, and a rotating motor are set up. The rotating motor drives the rotating shaft to rotate, which in turn drives the saw blade to rotate. Then the lifting platform descends, which drives the saw blade to move, so that the saw blade can cut the steel pipe.

[0014] Furthermore, a top plate is provided at the upper end of both columns, and a hydraulic cylinder is vertically installed on the top plate. The piston rod of the hydraulic cylinder passes downward through the top plate and connects to the top of the lifting platform.

[0015] By adopting the above technical solution, a top plate and a hydraulic cylinder are installed, and the lifting platform is driven to rise and fall by the hydraulic cylinder.

[0016] Furthermore, the fixed plate has two horizontally spaced sliding holes vertically arranged, and a sliding rod is slidably installed in the sliding hole. The lower ends of the two sliding rods are provided with a pressure seat. A compression spring is sleeved on the rod between the pressure seat and the fixed plate. The bottom of the pressure seat has an arc notch.

[0017] By adopting the above technical solution, a sliding rod, a lower pressure seat, and a compression spring are installed. In the initial state, the lower side of the lower pressure seat is lower than the lower side of the saw blade. During the cutting operation, the lifting platform descends, causing the lower pressure seat to descend as well. The arc-shaped notch first contacts the steel pipe, fixing it in place. The lifting platform continues to descend, the sliding rod slides within the sliding hole, and the compression spring is compressed. Subsequently, the saw blade contacts the steel pipe to cut it. After the cutting is completed, the lifting platform rises, and the compression spring, no longer restrained, pushes the lower pressure seat to return to its original position.

[0018] Furthermore, the drive assembly includes a gear ring fixedly sleeved on the rotating tube, and a drive motor is horizontally arranged on the side of the upright plate away from the worktable. The output shaft of the drive motor passes through the upright plate and is provided with a gear, which meshes with the gear ring.

[0019] By adopting the above technical solution, a drive motor, a gear ring, and a gear are set up. The drive motor drives the gear to rotate, thereby driving the gear ring and the rotating tube to rotate.

[0020] Furthermore, the mounting base is provided with three circumferentially spaced mounting brackets on the rotating tube.

[0021] In summary, this utility model has the following beneficial effects: This application includes a workbench, a vertical plate, a rotating tube, a drive assembly, a mounting base, an arc-shaped plate, and a collection box. During steel pipe cutting, the steel pipe is first placed in the guide groove on the workbench, then pushed so that a portion of the pipe moves to the guide groove on the mounting base. The cutting assembly then cuts the steel pipe. After cutting, the drive assembly drives the rotating tube to rotate, causing the mounting base to rotate around the axis of the rotating tube. During rotation, the cut steel pipe falls from the mounting base onto the arc-shaped plate, which guides the steel pipe to slide into the collection box for collection. This eliminates the need for manual removal of the cut steel pipe, reducing labor intensity and increasing efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the fixed tube and the rotating tube in an embodiment of this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the mounting base and baffle in an embodiment of this utility model;

[0025] Figure 4 This is a schematic diagram of the lifting platform according to an embodiment of the present invention;

[0026] Figure 5 yes Figure 4 Enlarged view of part A;

[0027] Figure 6 This is a structural schematic diagram of the lifting platform from another angle according to an embodiment of this utility model;

[0028] Figure 7 This is a schematic diagram of the structure of the baffle in an embodiment of this utility model.

[0029] In the diagram: 10. Base plate; 11. Workbench; 12. Vertical plate; 13. Fixed tube; 14. Rotating tube; 20. Drive assembly; 21. Gear ring; 22. Drive motor; 23. Gear; 30. Mounting base; 31. Scale groove; 32. Slide groove; 33. Sliding block; 34. Baffle; 35. Mounting block; 36. Threaded rod; 37. Pressure block; 38. Handle; 40. Guide groove; 50. Cutting assembly; 51. Column; 52. Lifting platform; 53. Fixed plate; 54. Rotating shaft; 55. Saw blade; 56. Rotating motor; 57. Top plate; 571. Hydraulic cylinder; 58. Slide rod; 581. Compression spring; 59. Lower pressure seat; 591. Arc notch; 60. Arc plate; 61. Collection box. Detailed Implementation

[0030] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0031] like Figure 1-7As shown in the illustration, this application discloses a steel pipe cutting device for testing the low-temperature impact performance of steel pipes. The device includes a base plate 10, a workbench 11, a vertical plate 12, a rotating tube 14, a drive assembly 20, a mounting base 30, an arc-shaped plate 60, and a collection box 61. The workbench 11 and the vertical plate 12 are spaced apart on the base plate 10. A fixed tube 13 is horizontally arranged between the workbench 11 and the vertical plate 12. The rotating tube 14 is rotatably mounted on the fixed tube 13. The drive assembly 20 is mounted on the vertical plate 12 and is used to drive the rotating tube 14 to rotate. A mounting base 30 is provided on the rotating tube 14, with its length direction aligned with the length direction of the rotating tube 14. Both the mounting base 30 and the workbench 11 have guide grooves 40, with their length directions aligned with the length direction of the mounting base 30. The length direction of the rotating tube 14 is aligned with the steel pipe conveying direction. The cutting assembly 50 is mounted on the workbench 11 and is used to cut the steel pipe. The steel pipe is placed in the guide groove 40 on the workbench 11, and then pushed so that a portion of the pipe moves onto the guide groove 40 of the mounting base 30. The cutting assembly 50 then cuts the steel pipe. An arc-shaped plate 60 is also provided between the workbench 11 and the upright plate 12, located below the rotating tube 14. A collection box 61 is located at the bottom of the arc-shaped plate 60. After cutting, the drive assembly 20 drives the rotating tube 14 to rotate, causing the mounting base 30 to rotate around the axis of the rotating tube 14. During rotation, the cut steel pipe falls from the mounting base 30 onto the arc-shaped plate 60, which guides the steel pipe to slide into the collection box 61 for collection. A vertical plate is also provided between the workbench 11 and the upright plate 12, with its lower side connected to the upper side of the arc-shaped plate 60 to prevent the steel pipe from crossing the upper side of the arc-shaped plate 60.

[0032] Specifically, the mounting base 30 has several graduated grooves 31 along its length. The mounting base 30 has sliding grooves 32 on both sides of the guide groove 40. The length direction of the sliding grooves 32 is consistent with the length direction of the mounting base 30. Sliding blocks 33 are slidably arranged in the sliding grooves 32. A baffle 34 is provided on both sliding blocks 33. The baffle 34 and the sliding blocks 33 are slidable, and the sliding position of the baffle 34 is adjusted according to the reading of the graduated grooves 31. When moving the steel pipe, the end of the steel pipe contacts the baffle 34 before cutting, thereby controlling the length of the cut steel pipe. A mounting block 35 is provided on one side of the baffle 34. The mounting block 35 has a threaded hole, and a threaded rod 36 is spirally arranged in the threaded hole. The lower end of the threaded rod 36 is located in the slide groove 32 and is provided with a pressure block 37. The upper end is located above the mounting block 35 and is provided with a handle 38. Rotating the handle 38 drives the threaded rod 36 to rotate. When the threaded rod 36 rotates, it moves relative to the mounting block 35, which drives the pressure block 37 to move. When the bottom of the pressure block 37 abuts against the bottom of the slide groove 32, the positions of the pressure block 37, the threaded rod 36, the mounting block 35, and the baffle 34 are fixed.

[0033] In setup, the cutting assembly 50 includes columns 51, a lifting platform 52, and a rotary motor 56. There are two columns 51, spaced apart on the worktable 11. The lifting platform 52 has two circular holes that slide within the columns 51, allowing it to slide on the two columns. Two horizontally spaced fixing plates 53 are positioned on the lifting platform 52, one above the worktable 11 and the other above the rotating tube 14. A rotating shaft 54 ​​rotates horizontally between the two fixing plates 53, with a saw blade 55 mounted on it. The rotary motor 56 is horizontally mounted on the lifting platform 52, and its output shaft is connected to the rotating shaft 54. The motor drives the shaft 54 ​​to rotate, causing the saw blade 55 to rotate. Subsequently, the lifting platform 52 descends, moving the saw blade 55 and allowing it to cut the steel pipe. The mounting base 30 and the worktable 11 are spaced apart, creating a gap between them. When the saw blade 55 cuts the steel pipe, the lower side of the saw blade 55 can descend into the gap, and the lower side of the saw blade 55 is lower than the bottom of the guide groove 40, completely cutting the steel pipe. A top plate 57 is shared at the upper end of the two columns 51. A hydraulic cylinder 571 is vertically mounted on the top plate 57. The piston rod of the hydraulic cylinder 571 passes downward through the top plate 57 and connects to the top of the lifting platform 52, driving the lifting platform 52 to rise and fall.

[0034] Two horizontally spaced sliding holes are vertically formed on the fixed plate 53. Sliding rods 58 slide within these holes, and a common pressure seat 59 is located at the lower end of both sliding rods 58. The two pressure seats 59 are positioned on either side of the saw blade 55. A compression spring 581 is fitted onto the rod of the sliding rod 58 between the pressure seat 59 and the fixed plate 53. The upper end of the compression spring 581 is connected to the fixed plate 53, and the lower end is connected to the pressure seat 59. An arc-shaped notch 591 is formed at the bottom of the pressure seat 59. Initially, the lower side of the pressure seat 59 is lower than the lower side of the saw blade 55. During cutting, the lifting platform 52 descends, causing the pressure seat 59 to descend as well. The arc-shaped notch 591 first contacts the steel pipe, fixing it in place. As the lifting platform 52 continues to descend, the sliding rods 58 slide within the sliding holes, compressing the compression spring 581. Subsequently, the saw blade 55 contacts the steel pipe for cutting. After cutting, the lifting platform 52 rises, and the compression spring 581, no longer restrained, pushes the pressure seat 59 back to its original position.

[0035] In a specific configuration, the drive assembly 20 includes a gear ring 21 and a drive motor 22. The gear ring 21 is fixedly sleeved on the rotating tube 14. The drive motor 22 is horizontally positioned on the side of the vertical plate 12 away from the worktable 11. The output shaft of the drive motor 22 passes through the vertical plate 12 and is equipped with a gear 23. The gear 23 meshes with the gear ring 21. The drive motor 22 drives the gear 23 to rotate, thereby driving the gear ring 21 and the rotating tube 14 to rotate.

[0036] When the mounting base 30 is in the working position, its guide groove 40 engages with the guide on the worktable 11. To improve the efficiency of steel pipe cutting, the mounting base 30 has three circumferentially spaced mounting bases on the rotating tube 14. After the steel pipe is cut, the drive motor 22 drives the gear 23 and gear ring 21 to rotate, causing the rotating tube 14 to rotate 120 degrees, so that the next mounting base 30 reaches the working position. Then the steel pipe can be moved for cutting, reducing the angle of rotation of the rotating tube 14 each time, thereby reducing the time of rotation of the rotating tube 14 each time and improving work efficiency.

[0037] The operating principle of the steel pipe cutting device for low-temperature impact performance testing of steel pipes in this embodiment is as follows:

[0038] When cutting the steel pipe, the steel pipe is first placed in the guide groove 40 on the workbench 11. Then, the steel pipe is pushed so that a part of the pipe body moves onto the guide groove 40 of the mounting base 30. Then, the rotary motor 56 is started to drive the rotary shaft 54 ​​to rotate, which in turn drives the saw blade 55 to rotate. Then, the hydraulic cylinder 571 is started to drive the lifting platform 52 and the saw blade 55 to descend. The arc notch 591 first contacts the steel pipe and fixes it. The lifting platform 52 continues to descend, the slide rod 58 slides in the sliding hole, the compression spring 581 is compressed, and then the saw blade 55 contacts the steel pipe to cut it.

[0039] After cutting is completed, drive motor 22 is started. Drive motor 22 drives gear 23 to rotate, thereby driving gear ring 21 and rotating tube 14 to rotate. This causes mounting base 30 to rotate around the axis of rotating tube 14. During the rotation, the cut steel pipe falls from mounting base 30 onto arc plate 60. Arc plate 60 guides the steel pipe, causing it to slide into collection box 61 for collection.

[0040] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A steel pipe cutting device for testing the low-temperature impact performance of steel pipes, characterized in that: The utility model provides a steel pipe cutting device, including bottom plate (10), the workbench (11) and vertical board (12) are arranged at intervals on bottom plate (10), fixed pipe (13) is arranged horizontally between workbench (11) and vertical board (12), rotating pipe (14) is rotatably arranged on fixed pipe (13), drive assembly (20) is arranged on vertical board (12) and drives rotating pipe (14) to rotate, mounting seat (30) is arranged on rotating pipe (14), guide slot (40) is formed in workbench (11) and mounting seat (30), cutting assembly (50) is arranged on workbench (11) and cuts steel pipe, arc plate (60) is further arranged between workbench (11) and vertical board (12), arc plate (60) is located below rotating pipe (14), and collecting box (61) is arranged on the lowermost side of arc plate (60).

2. The steel pipe cutting device for testing low-temperature impact performance of steel pipe according to claim 1, characterized in that: A plurality of scale grooves (31) are formed in the mounting seat (30) along the length direction thereof, and a sliding groove (32) is formed on each side of the mounting seat (30) relative to the guide slot (40). The sliding groove (32) slidably accommodates a sliding block (33), and the two sliding blocks (33) jointly accommodate a baffle (34).

3. The steel pipe cutting device for testing low-temperature impact performance of steel pipe according to claim 2, characterized in that: The baffle (34) is provided with a mounting block (35) on one side thereof, the mounting block (35) is provided with a threaded hole, and a threaded rod (36) is spirally arranged in the threaded hole. The lower end of the threaded rod (36) is located in the sliding groove (32) and is provided with a pressing block (37), and the upper end of the threaded rod (36) is located above the mounting block (35) and is provided with a handle (38).

4. The steel pipe cutting device for testing low-temperature impact performance of steel pipe according to claim 1, characterized in that: The cutting assembly (50) comprises two vertical columns (51) arranged at intervals on the workbench (11), and a lifting platform (52) is slidably arranged on the two vertical columns (51). The lifting platform (52) is horizontally and intervally provided with two fixed plates (53), the two fixed plates (53) are horizontally rotatably provided with a rotating shaft (54), the rotating shaft (54) is provided with a saw blade (55), the lifting platform (52) is provided with a rotating motor (56), the output shaft of the rotating motor (56) is connected with the rotating shaft (54), and the mounting seat (30) and the workbench (11) are arranged at intervals.

5. The steel pipe cutting device for testing low-temperature impact performance of steel pipe according to claim 4, characterized in that: A top plate (57) is jointly arranged on the upper ends of the two vertical columns (51), and a hydraulic cylinder (571) is vertically arranged on the top plate (57). The piston rod of the hydraulic cylinder (571) penetrates downward through the top plate (57) and is connected with the top of the lifting platform (52).

6. The steel pipe cutting device for testing low-temperature impact performance of steel pipe according to claim 5, characterized in that: Two horizontally and intervally arranged sliding holes are vertically formed in the fixed plate (53), and a sliding rod (58) is slidably arranged in the sliding hole. A lower pressing seat (59) is jointly arranged at the lower ends of the two sliding rods (58), a compression spring (581) is sleeved on the rod between the lower pressing seat (59) and the fixed plate (53), and a circular arc notch (591) is formed in the bottom of the lower pressing seat (59).

7. The steel pipe cutting device for testing low-temperature impact performance of steel pipe according to claim 1, characterized in that: The driving assembly (20) comprises a gear ring (21) fixedly sleeved on the rotating pipe (14), a driving motor (22) is horizontally arranged on the side, away from the workbench (11), of the vertical plate (12), the output shaft of the driving motor (22) penetrates through the vertical plate (12) and is provided with a gear (23), and the gear (23) is meshed with the gear ring (21).

8. The steel pipe cutting device for testing low-temperature impact performance of steel pipe according to claim 1, characterized in that: The mounting seat (30) is circumferentially and spacedly provided with three on the rotating pipe (14).

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