Movable steel pipe straightening machine

Abstract

The utility model discloses a movable steel pipe straightening machine, and relates to the technical field of straightening machines. Comprising a base, a supporting seat and a movable pressure mechanism, the base comprises a base main body and a track; the base main body comprises a transverse base and a longitudinal base; the longitudinal base is arranged below the transverse base; the rails are arranged on the two sides of the transverse base, pulleys are connected to the bottom of the longitudinal base, and the pulleys are connected to the rails in a sliding mode so that the longitudinal base can move relative to the transverse base; a plurality of center supporting mechanisms and at least two straightening ejector pieces are arranged above the transverse base at intervals. The movable pressure mechanism comprises a gantry frame and a press machine; the bottom of the gantry frame is connected to the longitudinal base; the press is connected to the gantry frame; the steel pipe can not move, the gantry frame and the press machine are moved, the press machine is moved to the bent part of the steel pipe, and therefore the length of the transverse base can be reduced, and the occupied area is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of straightening machine technology, specifically relating to a mobile steel pipe straightening machine. Background Technology

[0002] Steel pipes may bend and deform during use due to improper use or uneven stress. Steel pipe straightening machines are used to straighten bent steel pipes and make them straight.

[0003] Existing steel pipe straightening machines utilize rollers or shafts to press, stretch, or pull steel pipes to achieve a straightening effect. For example, patent application number CN201920756416.4, entitled "A Seamless Steel Pipe Straightening Machine," discloses a worktable located in the middle of the machine body. The worktable has two parallel slide rails, one end of which has a sand-filling device, and the other end has a tightening device. Both the sand-filling and tightening devices are equipped with screw mechanisms fixed to both ends of the worktable. Moving the positions of the tightening and sand-filling devices adjusts the position of the steel pipe to be straightened on the worktable. The center of the workbench is directly connected to the steel pipe below, which is connected to a straightening mechanism. The workbench is fixed to the ground. Since the straightening mechanism is fixed on the workbench, the straightening mechanism can only be used to correct different positions of the steel pipe by adjusting the movement of the steel pipe. When the steel pipe moves on the workbench, the axial dimension of the steel pipe is large, resulting in a long movement distance of the steel pipe. This makes the working space of the entire straightening machine large. Moreover, the steel pipe is prone to skewing during the movement process, which affects the straightening efficiency. Utility Model Content

[0004] This utility model provides a movable steel pipe straightening machine to solve the problem that most existing straightening machines can only move the steel pipe and cannot move the straightening mechanism on the worktable, thus reducing the problem of large footprint and easy deflection during the movement of large axial dimensions of steel pipes, which leads to reduced straightening efficiency.

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

[0006] A mobile steel pipe straightening machine includes a base, a support base, and a moving pressure mechanism;

[0007] The base includes a base body and a track; the base body includes a transverse base and a longitudinal base; the longitudinal base is disposed below the transverse base; the track is disposed on both sides of the transverse base along its width direction, and the bottom of the longitudinal base is connected to a pulley, which is slidably connected to the track, so that the longitudinal base can move relative to the transverse base; multiple central support mechanisms and at least two straightening top members are spaced apart above the transverse base along the length direction of the base body;

[0008] The movable pressure mechanism includes a gantry frame and a press; the bottom of the gantry frame is connected to the longitudinal base; the press is connected above the gantry frame, directly opposite the central support mechanism.

[0009] The support base includes a support base body and an end support mechanism; the support base body is located outside both ends of the base body in the length direction; the end support mechanism is connected above the support base body, and can make contact with the circumference of the steel pipe and can move upward to lift the steel pipe.

[0010] The mobile steel pipe straightening machine of this utility model also has the following additional technical features:

[0011] The transverse base is perpendicular to the longitudinal base; the top of the longitudinal base is connected to the bottom of the gantry frame on both sides along the length direction, and the gantry frame moves along the transverse base via the longitudinal base; the transverse base has slide rails on both sides along the width direction.

[0012] Multiple partitions are connected at intervals along the length of the transverse base, and a cavity is formed between two adjacent partitions to accommodate the central support mechanism.

[0013] The inner side of the gantry frame has a boss, and multiple rollers are connected to the side of the boss facing the transverse base. The rollers are slidably connected to the slide rail.

[0014] The central support mechanism includes a bracket assembly, a support roller assembly, and a lifting assembly; the lifting assembly is connected inside the transverse base, and the top of the lifting assembly extends out of the top of the transverse base and connects to the bottom of the bracket assembly. The support roller assembly for supporting the steel pipe is connected above the bracket assembly, and the support roller assembly can be raised and lowered by the lifting assembly.

[0015] The support roller assembly includes a first support roller and a second support roller, which are symmetrically connected along the axial direction. The first support roller has a plurality of support ribs distributed at intervals along the circumferential direction, and the outer circumferential surface of the second support roller is a smooth surface. There is a preset gap between the first support roller and the second support roller.

[0016] The support assembly includes a flat plate, a first support, and a second support; the bottom of the flat plate is connected to the top of the lifting assembly, the first support and the second support are respectively connected to the two sides of the flat plate, the first support is rotatably connected to a first support roller, and the second support is rotatably connected to a second support roller.

[0017] The lifting assembly includes a first lifting rod, a hydraulic cylinder, and a second lifting rod connected within the transverse base. The top end of the first lifting rod, the top end of the piston rod of the hydraulic cylinder, and the top end of the second lifting rod are respectively connected to the bottom of the flat plate.

[0018] The straightening support pieces can be distributed on both sides of the transverse base to support both ends of the steel pipe along the axial direction. The height of the straightening support pieces is higher than the initial height of the support roller assembly, and the height of the straightening support pieces is lower than the height to which the support roller assembly is lifted by the lifting assembly.

[0019] Due to the adoption of the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0020] 1. A movable steel pipe straightening machine according to this application includes a base, a support base, and a moving pressure mechanism; the base includes a base body and a track; the base body includes a transverse base and a longitudinal base; the longitudinal base is disposed below the transverse base; the track is disposed on both sides of the transverse base along the width direction, and the bottom of the longitudinal base is connected to a pulley, which is slidably connected to the track, so that the longitudinal base can move relative to the transverse base; a plurality of central support mechanisms and at least two straightening top members are spaced apart above the transverse base along the length direction of the base body; the moving pressure mechanism includes a gantry frame and a press; the bottom of the gantry frame is connected to the longitudinal base; the press is connected above the gantry frame and faces the central support mechanisms; the steel pipe can not only be moved by the central support mechanisms, but also can remain stationary by moving the gantry frame and the press, so that the press moves to the bent part of the steel pipe, thereby reducing the length of the transverse base and reducing the floor space occupied;

[0021] The support base includes a support body and end support mechanisms. The support body is located at both ends of the base body along its length. The end support mechanisms are connected above the support body, allowing them to contact the circumference of the steel pipe and move upwards to lift it. The end support mechanisms, together with the central support mechanism, provide support for the steel pipe, further enhancing its support strength and stability. Because steel pipes vary in size, when encountering a pipe whose axial dimension exceeds the length of the transverse base of the base body, the end support mechanisms further strengthen the support at the ends of the pipe. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0023] Figure 1 This is a side view of a movable steel pipe straightening machine according to one embodiment of this application;

[0024] Figure 2 This is a schematic diagram of the base of a movable steel pipe straightening machine according to one embodiment of this application;

[0025] Figure 3 This is a schematic cross-sectional view of the central support mechanism of a movable steel pipe straightening machine according to one embodiment of this application;

[0026] In the picture,

[0027] 1. Base body; 11. Transverse base; 12. Longitudinal base; 2. Track; 3. Gantry frame; 4. Press; 5. Support body body; 6. End support mechanism; 7. Bracket assembly; 71. Flat plate; 72. First bracket; 73. Second bracket; 8. Support roller assembly; 81. First support roller; 82. Second support roller; 9. Lifting assembly; 91. First lifting rod; 92. Hydraulic cylinder; 93. Second lifting rod; 10. Pulley; 13. Straightening top piece; 14. Guide wheel assembly; 141. First guide wheel; 142. Second guide wheel; 15. Steel pipe. Detailed Implementation

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0029] Furthermore, it should be understood in the description of this utility model that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "aspect," or "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0033] This utility model relates to a mobile steel pipe straightening machine, such as Figure 1-3 As shown, it includes a base, a support base, and a moving pressure mechanism;

[0034] The base includes a base body 1 and a track 2; the base body 1 includes a transverse base 11 and a longitudinal base 12; the longitudinal base 12 is disposed below the transverse base 11; the track 2 is disposed on both sides of the transverse base 11 along the width direction, and the bottom of the longitudinal base 12 is connected to a pulley 10, which is slidably connected to the track 2 so that the longitudinal base 12 can move relative to the transverse base 11; a plurality of central support mechanisms and at least two straightening top members 13 are provided at intervals along the length direction of the base body 1 above the transverse base 11.

[0035] The movable pressure mechanism includes a gantry frame 3 and a press 4; the bottom of the gantry frame 3 is connected to the longitudinal base 12; the press 4 is connected above the gantry frame 3, directly opposite the central support mechanism.

[0036] The support base includes a support base body 5 and an end support mechanism 6; the support base body 5 is located outside both ends of the base body 1 in the length direction; the end support mechanism 6 is connected above the support base body 5, and can make contact with the circumferential surface of the steel pipe 15 and can move upward to lift the steel pipe 15.

[0037] In use, the movable steel pipe straightening machine of this application places the steel pipe 15 to be straightened above the straightening top piece 13. Since there are at least two straightening top pieces 13, it is preferred to set the straightening top pieces 13 on both sides of the transverse base 11 to support the axial ends of the steel pipe 15 and ensure the stability of the steel pipe 15. When straightening is required, the steel pipe 15 on the straightening top piece 13 can be lifted by the multiple central support mechanisms of the transverse base 11, so that the steel pipe 15 is detached from the straightening top piece 13. Then, the steel pipe 15 can be straightened in three ways. The first way is to move the steel pipe 15 axially by the central support mechanism so that the bent part of the steel pipe 15 is aligned with the bottom of the press 4. Then, the central support mechanism is lowered back to the initial height, at which point the steel pipe 15 falls back above the straightening top piece 13. The straightening top piece 13 supports the steel pipe 15, and then the press 4 straightens the steel pipe 15. The first method involves applying pressure to straighten the bent portion of pipe 15. The second method involves not lifting the central support structure but moving the longitudinal base 12. This allows the longitudinal base 12 to move along the length of the transverse base 11 under the action of pulleys 10 and rails 2, thereby moving the gantry frame 3 connected to the longitudinal base 12 and the press 4 on the gantry frame 3. This allows the press 4 to be aligned with the bent portion of the steel pipe 15 for pressure straightening. The third method involves simultaneously moving the central support structure and the gantry frame 3, causing the press 4 to move relative to the steel pipe 15 to accelerate the straightening speed and improve straightening efficiency.

[0038] In addition, this application provides support seats on both sides of the base body 1. Each support seat includes a support seat body 5 and an end support mechanism 6 connected to the top of the support seat body 5. The end support mechanism 6 preferably has the same structure as the central support mechanism. This is to further enhance the support strength of the steel pipe 15 and improve its stability. Because the steel pipe 15 has different dimensions, when encountering a steel pipe 15 whose axial dimension exceeds the length of the transverse base 11, the support seat body 5 and the end support mechanism 6 can further enhance the support for the ends of the steel pipe 15. Since support seats are provided outside both ends of the transverse base 11 to further support the steel pipe 15, and the gantry frame 3 and the press 4 can move relative to the transverse base 11, the length of the transverse base 11 can be shortened.

[0039] Furthermore, since the gantry frame 3 can move relative to the transverse base 11, and the steel pipe 15 can move relative to the gantry frame 3 under the action of the central support mechanism, the track 2 does not need to be too long. The track 2 extends along the length direction of the transverse base 11, and the length of the track 2 can be less than the length of the transverse base 11.

[0040] Furthermore, the transverse base 11 is perpendicularly distributed to the longitudinal base 12; the top of the longitudinal base 12 is connected to the bottom of the gantry frame 3 on both sides along the length direction, and the gantry frame 3 moves along the transverse base 11 via the longitudinal base 12; the transverse base 11 has slide rails on both sides along the width direction.

[0041] like Figure 1 As shown, a longitudinal base 12 is located below the transverse base 11. A preset distance exists between the transverse base 11 and the longitudinal base 12 to allow the longitudinal base 12 to move along the transverse base 11. The longitudinal base 12 is perpendicular to the transverse base 11. Support seats are provided on both sides of the transverse base 11 along its length. The longitudinal base 12 extends along the width of the transverse base 11, but moves along the length of the transverse base 11 via pulleys 10 at its bottom along the track 2. A gantry frame 3 for moving the pressure mechanism is connected to the top of the longitudinal base 12. The gantry frame 3 has a press 4. The pressure mechanism moves along the length of the transverse base 11 by moving the longitudinal base 12 along the length of the transverse base 11. Thus, without moving the steel pipe 15, different parts of the steel pipe 15 can be pressurized and straightened by moving the gantry frame 3 and the press 4, thereby reducing the length of the transverse base 11 and the floor space occupied.

[0042] Furthermore, multiple partitions are connected at intervals along the length of the transverse base 11, and a cavity is formed between two adjacent partitions to accommodate the installation of the central support mechanism.

[0043] Multiple central support mechanisms are provided above the transverse base 11. The bottom of the central support mechanism can extend into the interior of the transverse base 11. In order to effectively space and stably support the central support structure, the interior of the transverse base 11 is divided into multiple cavities by partitions. The central support mechanism is installed by extending its bottom into the corresponding cavity. This makes the multiple central support mechanisms in the length direction of the transverse base 11 provide uniform support to the steel pipe 15 in the axial direction, so that the axial force on the steel pipe 15 is more uniform.

[0044] In a preferred embodiment, the inner side of the gantry frame 3 has a boss, and multiple rollers are connected to the side of the boss facing the transverse base 11. The rollers are slidably connected to the slide rail.

[0045] The gantry frame 3 is connected to both sides of the top of the longitudinal base 12. When the longitudinal base 12 moves relative to the transverse base 11, it can drive the gantry frame 3 to move relative to the transverse base 11. In order to enhance the stability of the movement between the gantry frame 3 and the transverse base 11, a boss protruding from the surface of the transverse base 11 is provided on the inner side of the gantry frame 3 facing the transverse base 11. Multiple rollers are connected to the end face of the boss. The rolling circumference of the rollers can contact the slide rail connected to the transverse base 11. The sliding cooperation between the rollers and the slide rail can further enhance the stability of the movement of the gantry frame 3 along the transverse base 11, further ensure the stability of the operation of the press 4, prevent the gantry frame 3 from tilting during the movement, and further improve the quality of the pressure straightening and the working efficiency of the straightening machine.

[0046] In a preferred embodiment, the central support mechanism includes a bracket assembly 7, a support roller assembly 8, and a lifting assembly 9; the lifting assembly 9 is connected inside the transverse base 11, and the top of the lifting assembly 9 can extend out of the top of the transverse base 11 and connect to the bottom of the bracket assembly 7. The support roller assembly 8 for supporting the steel pipe 15 is connected above the bracket assembly 7, and the support roller assembly 8 can be raised and lowered by the lifting assembly 9.

[0047] like Figure 2 As shown, when the steel pipe 15 is placed above the support roller assembly 8, when the steel pipe 15 needs to be moved, the support assembly 7 is lifted by the lifting assembly 9, and the support assembly 7 drives the support roller assembly 8 to be lifted, thereby lifting the steel pipe 15. At this time, the steel pipe 15 is removed from the support of the straightening top piece 13, and then the first support roller 81 and the second support roller 82 in the support roller assembly 8 are driven to rotate by the driving device, such as the drive motor, which can drive the steel pipe 15 above the support roller assembly 8 to move in the axial direction. When the bent part of the steel pipe 15 moves to below the press 4, the lifting assembly 9 is restored to its original position, the support assembly 7 and the support roller assembly 8 are moved down, and the steel pipe 15 is once again located above the straightening top piece 13 and supported by the straightening top piece 13. Then the press 4 is used to press and straighten the bent part.

[0048] Furthermore, the support roller assembly 8 includes a first support roller 81 and a second support roller 82, which are symmetrically connected along the axial direction. The first support roller 81 has a plurality of support ribs distributed at intervals along the circumferential direction, and the outer circumferential surface of the second support roller 82 is a smooth surface. There is a preset gap between the first support roller 81 and the second support roller 82.

[0049] The first support roller 81 and the second support roller 82 are symmetrically arranged, and the first support roller 81 and the second support roller 82 have a conical structure, with the smaller end facing inward and the larger end facing outward. There is a preset gap between the first support roller 81 and the second support roller 82, so that a downwardly recessed space is formed between the first support roller 81 and the second support roller 82, thereby enabling the steel pipe 15 to be stably connected between the first support roller 81 and the second support roller 82. In addition, the multiple support ribs distributed circumferentially on the first support roller 81 can enhance the friction between the first support roller 81 and the circumferential surface of the steel pipe 15, preventing the steel pipe 15 from deviating when moving along the first support roller 81 and the second support roller.

[0050] The purpose of the different structures of the first support roller 81 and the second support roller 82 is that the first support roller 81 has multiple support ribs, which can increase the friction between it and the steel pipe 15 and prevent radial deviation between the steel pipe 15 and the first support roller 81. When the circumferential surface of the second support roller 82 is set to a smooth surface, the steel pipe 15 can move more smoothly along the surface of the second support roller 82. This avoids the situation where both the first support roller 81 and the second support roller 82 have support ribs, which would cause excessive friction and increase the resistance to movement of the steel pipe 15.

[0051] Furthermore, such as Figure 3 As shown, the support assembly 7 includes a flat plate 71, a first support 72, and a second support 73; the bottom of the flat plate 71 is connected to the top of the lifting assembly 9, the first support 72 and the second support 73 are respectively connected to the two sides of the flat plate 71, the first support 72 is rotatably connected to a first support roller 81, and the second support 73 is rotatably connected to a second support roller 82.

[0052] The first bracket 72 and the second bracket 73 are located on both sides of the plate 71, respectively. The first bracket 72 is used to rotatably connect the first support roller 81, and the second bracket 73 is used to rotatably connect the second support roller 82, further strengthening the connection between the first support roller 81 and the second support roller 82, so that the steel pipe 15 is subjected to uniform force on both sides in the radial direction.

[0053] Furthermore, the lifting assembly 9 includes a first lifting rod 91, a hydraulic cylinder 92, and a second lifting rod 93 connected within the transverse base 11. The top end of the first lifting rod 91, the top end of the piston rod of the hydraulic cylinder 92, and the top end of the second lifting rod 93 are respectively connected to the bottom of the plate 71.

[0054] When the piston rod of the hydraulic cylinder 92 extends, the first lifting rod 91 and the second lifting rod 93 simultaneously rise, thereby lifting the support roller assembly 8 with the lifting assembly 9, and further lifting the steel pipe 15 away from the straightening top member 13 for movement. When the piston rod of the hydraulic cylinder 92 retracts, the first lifting rod 91 and the second lifting rod 93 simultaneously descend, thereby lowering the lifting assembly 9 and placing the steel pipe 15 on the straightening top member 13. The first lifting rod 91 and the second lifting rod 93 are located on both sides of the hydraulic cylinder 92, making the radial force on the steel pipe 15 more uniform, ensuring that the steel pipe 15 rises in a straight line and avoids tilting.

[0055] In a preferred embodiment, the central support mechanism further includes a guide wheel assembly 14, which includes a first guide wheel 141 and a second guide wheel 142. The first guide wheel 141 and the second guide wheel 142 are arranged parallel to each other and their axes are distributed along the length of the transverse base 11. The first guide wheel 141 and the second guide wheel 142 are separated by a preset distance. The first guide wheel 141 has a cylindrical structure, and the second guide wheel 142 has a cylindrical structure. The first guide wheel 141 and the second guide wheel 142 are disposed in a plurality of support roller assemblies 8 to further enhance the contact and support of the outer peripheral surface of the steel pipe 15.

[0056] In a preferred embodiment, the straightening top member 13 can be distributed on both sides of the transverse base 11 to support both ends of the steel pipe 15 along the axial direction. The height of the straightening top member 13 is higher than the initial height of the support roller assembly 8, and the height of the straightening top member 13 is lower than the height of the support roller assembly 8 lifted by the lifting assembly 9.

[0057] The height of the straightening top piece 13 is higher than the initial height of the lifting assembly 9. This is so that the unstraightened steel pipe 15 can be placed on top of the straightening top piece 13 first. Only when the height of the straightening top piece 13 is higher than the height of the support roller assembly 8 can the steel pipe 15 be placed on top of the straightening top piece 13 first. The height of the straightening top piece 13 is lower than the height of the support roller assembly 8 when it is lifted. This is so that when the steel pipe 15 needs to be straightened, the position of the steel pipe 15 needs to be adjusted so that the bent part of the steel pipe 15 faces the bottom of the press 4. Therefore, the steel pipe 15 above the straightening top piece 13 needs to be removed from the straightening top piece 13 so that the steel pipe 15 is located in the support roller assembly 8. The position of the steel pipe 15 can only be adjusted by moving the steel pipe 15 through the support roller assembly 8. Therefore, the height of the support roller assembly 8 when it is lifted by the lifting assembly 9 needs to be greater than the height of the straightening top piece 13.

[0058] For any parts not mentioned in this utility model, existing technologies can be used or referenced.

[0059] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0060] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A mobile steel pipe straightening machine, characterized in that, Includes a base, a support, and a moving pressure mechanism; The base includes a base body and a track; the base body includes a transverse base and a longitudinal base; the longitudinal base is disposed below the transverse base; the track is disposed on both sides of the transverse base along its width direction, and the bottom of the longitudinal base is connected to a pulley, which is slidably connected to the track, so that the longitudinal base can move relative to the transverse base; multiple central support mechanisms and at least two straightening top members are spaced apart above the transverse base along the length direction of the base body; The movable pressure mechanism includes a gantry frame and a press; the bottom of the gantry frame is connected to the longitudinal base; the press is connected above the gantry frame, directly opposite the central support mechanism. The support base includes a support base body and an end support mechanism; the support base body is located outside both ends of the base body in the length direction; The end support mechanism is connected above the main body of the support base, and can make contact with the circumference of the steel pipe and can move upward to lift the steel pipe.

2. The mobile steel pipe straightening machine according to claim 1, characterized in that, The transverse base is perpendicular to the longitudinal base; the top of the longitudinal base is connected to the bottom of the gantry frame on both sides along the length direction, and the gantry frame moves along the transverse base via the longitudinal base; the transverse base has slide rails on both sides along the width direction.

3. A mobile steel pipe straightening machine according to claim 2, characterized in that, Multiple partitions are connected at intervals along the length of the transverse base, and a cavity is formed between two adjacent partitions to accommodate the central support mechanism.

4. A mobile steel pipe straightening machine according to claim 2, characterized in that, The inner side of the gantry frame has a boss, and multiple rollers are connected to the side of the boss facing the transverse base. The rollers are slidably connected to the slide rail.

5. A mobile steel pipe straightening machine according to claim 1, characterized in that, The central support mechanism includes a bracket assembly, a support roller assembly, and a lifting assembly; the lifting assembly is connected inside the transverse base, and the top of the lifting assembly extends out of the top of the transverse base and connects to the bottom of the bracket assembly. The support roller assembly for supporting the steel pipe is connected above the bracket assembly, and the support roller assembly can be raised and lowered by the lifting assembly.

6. A mobile steel pipe straightening machine according to claim 5, characterized in that, The support roller assembly includes a first support roller and a second support roller, which are symmetrically connected along the axial direction. The first support roller has a plurality of support ribs distributed at intervals along the circumferential direction, and the outer circumferential surface of the second support roller is a smooth surface. There is a preset gap between the first support roller and the second support roller.

7. A mobile steel pipe straightening machine according to claim 6, characterized in that, The support assembly includes a flat plate, a first support, and a second support; the bottom of the flat plate is connected to the top of the lifting assembly, the first support and the second support are respectively connected to the two sides of the flat plate, the first support is rotatably connected to a first support roller, and the second support is rotatably connected to a second support roller.

8. A mobile steel pipe straightening machine according to claim 7, characterized in that, The lifting assembly includes a first lifting rod, a hydraulic cylinder, and a second lifting rod connected within the transverse base. The top end of the first lifting rod, the top end of the piston rod of the hydraulic cylinder, and the top end of the second lifting rod are respectively connected to the bottom of the flat plate.

9. A mobile steel pipe straightening machine according to claim 8, characterized in that, The straightening support pieces can be distributed on both sides of the transverse base to support both ends of the steel pipe along the axial direction. The height of the straightening support pieces is higher than the initial height of the support roller assembly, and the height of the straightening support pieces is lower than the height to which the support roller assembly is lifted by the lifting assembly.

10. A mobile steel pipe straightening machine according to claim 1, characterized in that, The track extends along the length of the transverse base, and the length of the track is less than the length of the transverse base.

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