Steel pipe straightening mechanism

Abstract

The utility model discloses a steel pipe straightening mechanism which comprises a machine frame, a straightening machine body and a first driving mechanism, the straightening machine body is installed on the machine frame in a rotating mode, and the straightening machine body is provided with a straightening cavity; the straightening machine comprises a straightening machine body, a plurality of straightening assemblies are arranged on the straightening machine body, the distances between every two adjacent straightening assemblies are equal, each straightening assembly comprises a straightening base and three compression roller mechanisms, the three compression roller mechanisms are circumferentially and evenly installed on the straightening machine body with the center of the straightening machine body as the circle center, the three compression roller mechanisms form a compression roller channel, and the compression roller channels are communicated with the straightening machine body. The compression roller mechanism comprises a straightening compression roller and a compression roller support, the straightening compression roller is installed on the compression roller support, and the compression roller support is installed on the straightening base through at least one compression roller lead screw nut pair. The device can meet the straightening requirements under different conditions, the position of the straightening roller can be quickly and conveniently adjusted, and the applicability and the production efficiency of the device are greatly improved.

Description

Technical Field

[0001] This utility model relates to a steel pipe straightening mechanism, belonging to the technical field of straightening equipment. Background Technology

[0002] A steel pipe straightening mechanism is a device used to improve the shape accuracy and surface quality of steel pipes. It is widely used in industries such as petroleum, chemical, and machinery manufacturing. During production, steel pipes may develop defects such as bending and twisting due to various reasons, affecting their performance and appearance. Therefore, a straightening mechanism is needed to straighten them to meet usage requirements. Traditional straightening methods often use mechanical straightening, which applies external force to the steel pipe through a series of straightening rollers, causing plastic deformation and achieving the straightening purpose. A search revealed that Chinese patent CN216937791U discloses a rotary straightening machine for seamless steel pipes. In this patent, the seamless steel pipe to be straightened is placed in the central through-hole of the straightening machine. The drive motor is started, and the straightening cylinder begins to rotate through the rotary drive assembly. Supported by the straightening rollers, the steel pipe is clamped, conveyed, and straightened as the straightening cylinder rotates. After straightening, the steel pipe is output from the other end of the straightening cylinder. However, in this patent, the position of the straightening roller cannot be adjusted quickly and conveniently. When encountering steel pipes of different specifications and degrees of curvature, it will limit the flexibility and applicability of the equipment and reduce production efficiency. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a steel pipe straightening mechanism that can adapt to the straightening needs under different conditions, can quickly and conveniently adjust the position of the straightening rollers, and greatly improve the applicability and production efficiency of the equipment.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a steel pipe straightening mechanism, comprising:

[0005] frame;

[0006] A straightening machine body, which is rotatably mounted on the frame, and the straightening machine body is provided with a straightening cavity;

[0007] The straightening machine body is provided with multiple straightening components, and the distance between two adjacent straightening components is equal. Each straightening component includes a straightening base and three pressure roller mechanisms. The three pressure roller mechanisms are evenly installed on the straightening machine body around the center of the straightening machine body, and the three pressure roller mechanisms form a pressure roller channel. Each pressure roller mechanism includes a straightening pressure roller and a pressure roller support. The straightening pressure roller is installed on the pressure roller support, and the pressure roller support is installed on the straightening base through at least one pressure roller screw nut pair.

[0008] The pressure roller screw in the pressure roller screw and nut assembly is rotatably mounted on the straightening base. The pressure roller nut in the pressure roller screw and nut assembly is connected to the pressure roller bracket. Rotating the pressure roller screw causes the pressure roller bracket to move along the axial direction of the pressure roller screw, thereby adjusting the size of the pressure roller channel.

[0009] A first drive mechanism, comprising a first drive motor and a first synchronous belt, wherein the first drive motor is mounted on the frame, a first main synchronous pulley is mounted on the movable end of the first drive motor, a first slave synchronous pulley is mounted on one end of the straightening machine body, and the first synchronous belt is adapted to connect the first main synchronous pulley and the first slave synchronous pulley;

[0010] The first drive motor is adapted to drive the straightening machine body to rotate so that the steel pipe to be straightened passes through the pressure roller channel and comes into contact with the straightening pressure roller to achieve the straightening of the steel pipe.

[0011] Furthermore, in order to ensure the stability of the straightening machine body during rotation, the steel pipe straightening mechanism also includes a support assembly, which includes a first bearing seat and a second bearing seat. Both the first bearing seat and the second bearing seat are mounted on the frame, and the straightening machine body is rotatably mounted between the first bearing seat and the second bearing seat.

[0012] Furthermore, to ensure the support and transport of the steel pipe, the steel pipe straightening mechanism also includes a transport assembly. The transport assembly includes a first transport mechanism, which is located at one end near the first synchronous pulley. The first transport mechanism includes a first upper transport wheel, a first lower transport wheel, a first upper transport platform, and a first lower transport platform. The first upper transport wheel is rotatably mounted on the first upper transport platform, and the first lower transport wheel is rotatably mounted on the first lower transport platform. The first upper transport wheel is provided with a first transport groove, and the first lower transport wheel is provided with a second transport groove. The first transport groove and the second transport groove are opposite to each other to form a first transport channel.

[0013] Furthermore, in order to ensure the centering and guidance of the steel pipe and prevent lateral movement, a first guide frame is also installed on the frame, the first upper conveyor table is slidably mounted on the first guide frame, and the first lower conveyor table is mounted on the first guide frame;

[0014] The first guide frame is provided with at least one first auxiliary guide assembly. The first auxiliary guide assembly includes a first fixed guide plate, a first movable guide plate, and a first guide cylinder. The first fixed guide plate is provided with a first mounting groove, and the first movable guide plate is provided with a second mounting groove. The first fixed guide plate is installed on one side of the first guide frame, and the first movable guide plate is installed on the first fixed guide plate by at least one first fastening bolt. The first mounting groove is adapted to form a first mounting cavity for installing the first guide cylinder when the first fixed guide plate and the first movable guide plate are installed in place, together with the second mounting groove.

[0015] The first guide cylinder is provided with a first guide channel suitable for the passage of a steel pipe.

[0016] Furthermore, in order to accommodate steel pipes of different diameters, the steel pipe straightening mechanism also includes a first adjusting device. The first adjusting device includes a first screw and nut pair. The first screw in the first screw and nut pair is rotatably mounted on the first guide frame. The first nut in the first screw and nut pair is connected to the first upper conveyor table. Rotating the first screw causes the first upper conveyor table to slide, thereby adjusting the distance between the first upper conveyor wheel and the first lower conveyor wheel.

[0017] Furthermore, the conveying assembly also includes a second conveying mechanism, which is located at one end away from the first synchronous pulley. The second conveying mechanism includes a second upper conveying wheel, a second lower conveying wheel, a second upper conveying platform, and a second lower conveying platform. The second upper conveying wheel is rotatably mounted on the second upper conveying platform, and the second lower conveying wheel is rotatably mounted on the second lower conveying platform. The second upper conveying wheel is provided with a third conveying groove, and the second lower conveying wheel is provided with a fourth conveying groove. The third conveying groove and the fourth conveying groove are opposite to each other to form a second conveying channel.

[0018] Furthermore, a second guide frame is also installed on the frame, the second upper conveyor is slidably mounted on the second guide frame, and the second lower conveyor is installed on the second guide frame;

[0019] The second guide frame is provided with at least one second auxiliary guide assembly, which includes a second fixed guide plate, a second movable guide plate, and a second guide cylinder. The second fixed guide plate is provided with a third mounting groove, and the second movable guide plate is provided with a fourth mounting groove. The second fixed guide plate is installed on one side of the second guide frame, and the second movable guide plate is installed on the second fixed guide plate by at least one second fastening bolt. The third mounting groove is adapted to form a second mounting cavity for installing the second guide cylinder when the second fixed guide plate and the second movable guide plate are installed in place, together with the fourth mounting groove.

[0020] The second guide cylinder is provided with a second guide channel suitable for the passage of a steel pipe.

[0021] Furthermore, the steel pipe straightening mechanism also includes a second adjusting device, which includes a second lead screw and nut pair. The second lead screw in the second lead screw and nut pair is rotatably mounted on the second guide frame. The second nut in the second lead screw and nut pair is connected to the second upper conveyor table. Rotating the second lead screw causes the second upper conveyor table to slide, thereby adjusting the distance between the second upper conveyor wheel and the second lower conveyor wheel.

[0022] Furthermore, to ensure the conveying of the steel pipe, the conveying assembly also includes a synchronization mechanism. The synchronization mechanism includes a support frame, a second drive motor, a second main synchronous pulley, a second driven synchronous pulley, a third driven synchronous pulley, and a second synchronous belt. The support frame is mounted on the machine frame, the second drive motor is mounted on the machine frame, the second main synchronous pulley is mounted on the support frame, the movable end of the second drive motor is connected to the second main synchronous pulley, the second driven synchronous pulley is connected to the first lower conveying pulley, the third driven synchronous pulley is connected to the second lower conveying pulley, and the second synchronous belt is adapted to connect the second main synchronous pulley, the second driven synchronous pulley, and the third driven synchronous pulley.

[0023] Furthermore, to ensure the tension of the second synchronous belt, the conveying assembly also includes a tensioning mechanism, which includes a first tensioning wheel and a second tensioning wheel. The support frame is provided with a first waist hole and a second waist hole. The first tensioning wheel is movably installed in the first waist hole via a first tensioning shaft, and the second tensioning wheel is movably installed in the second waist hole via a second tensioning shaft. The first tensioning wheel is located near the first lower conveyor wheel and abuts against the second synchronous belt, and the second tensioning wheel is located near the second lower conveyor wheel and abuts against the second synchronous belt. Adjusting the positions of the first tensioning wheel and the second tensioning wheel adjusts the tension of the second synchronous belt.

[0024] After adopting the above technical solution, this utility model has the following beneficial effects:

[0025] 1. In this utility model, a first guide cylinder and a second guide cylinder are selected according to the diameter of the steel pipe to be straightened. After the first guide cylinder and the second guide cylinder are installed in place, the steel pipe to be straightened is sent into the first conveying channel through the first guide channel. The second drive motor is started to drive the first conveying mechanism to rotate, and the steel pipe to be straightened is conveyed from the first conveying channel to the straightening cavity of the straightening machine body.

[0026] The first drive motor is started, causing the straightening machine body to start rotating, which in turn causes the straightening pressure rollers in the straightening chamber to rotate. The steel pipe to be straightened is straightened by contacting the straightening pressure rollers. The straightened steel pipe is then pulled into the second conveying channel, and the output device completes the straightening work.

[0027] 2. In this utility model, if it is necessary to process steel pipes of different diameters, the size of the first conveying channel and the second conveying channel can be adjusted by adjusting the first lead screw nut pair and the second lead screw nut pair to adapt to steel pipes of different diameters, thereby improving the applicability and production efficiency of the equipment. Attached Figure Description

[0028] Figure 1 The three-dimensional steel pipe straightening mechanism of this utility model Figure 1 ;

[0029] Figure 2 The three-dimensional steel pipe straightening mechanism of this utility model Figure 2 ;

[0030] Figure 3 This is a front view of the steel pipe straightening mechanism of this utility model;

[0031] Figure 4 This is a right view of the steel pipe straightening mechanism of this utility model;

[0032] Figure 5 This is a schematic diagram of the structure of the straightening machine body and straightening components of this utility model. Figure 1 ;

[0033] Figure 6 This is a schematic diagram of the structure of the straightening machine body and straightening components of this utility model. Figure 2 ;

[0034] Figure 7 This is a schematic diagram of the connection of the synchronization mechanism of this utility model. Detailed Implementation

[0035] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0036] like Figure 1-6 As shown, a steel pipe straightening mechanism includes:

[0037] Rack 1;

[0038] Straightening machine body 2 is rotatably mounted on frame 1, and straightening machine body 2 is provided with straightening cavity 21;

[0039] The straightening machine body 2 is provided with multiple straightening components. The distance between two adjacent straightening components is equal. The straightening components include a straightening base 221 and three pressure roller mechanisms. The three pressure roller mechanisms are evenly installed on the straightening machine body 2 around the center of the straightening machine body 2. The three pressure roller mechanisms form a pressure roller channel 226. The pressure roller mechanism includes a straightening pressure roller 222 and a pressure roller support 223. The straightening pressure roller 222 is installed on the pressure roller support 223. The pressure roller support 223 is installed on the straightening base 221 through at least one pressure roller screw nut pair.

[0040] The pressure roller screw 224 in the pressure roller screw nut pair is rotatably mounted on the straightening base 221. The pressure roller nut 225 in the pressure roller screw nut pair is connected to the pressure roller bracket 223. Rotating the pressure roller screw 224 drives the pressure roller bracket 223 to move along the axial direction of the pressure roller screw 224, thereby adjusting the size of the pressure roller channel 226.

[0041] The first drive mechanism includes a first drive motor 31 and a first synchronous belt 32. The first drive motor 31 is mounted on the frame 1. A first main synchronous pulley 33 is mounted on the movable end of the first drive motor 31. A first slave synchronous pulley 34 is mounted on one end of the straightening machine body 2. The first synchronous belt 32 is adapted to connect the first main synchronous pulley 33 and the first slave synchronous pulley 34.

[0042] The first drive motor 31 is adapted to drive the straightening machine body 2 to rotate so that the steel pipe to be straightened passes through the pressure roller channel 226 and comes into contact with the straightening pressure roller 222 to achieve the straightening of the steel pipe.

[0043] Specifically, a moving limiting mechanism (not shown in the figure) is provided between the pressure roller support 223 and the straightening base 221. The moving limiting mechanism limits the pressure roller support 223 to move axially along the corresponding pressure roller screw 224. The moving limiting mechanism can be a guide shaft and a guide sleeve, which are sleeved together. The guide shaft and the guide sleeve are respectively connected to the straightening base 221 and the pressure roller support 223.

[0044] In this embodiment, by adjusting the pressure roller screw 224 of each pressure roller mechanism, the size of the pressure roller channel 226 of each pressure roller mechanism gradually decreases towards the straightening cavity outlet side, and the steel pipe entering the pressure roller channel 226 continuously contacts the straightening pressure roller 222, gradually completing the straightening.

[0045] Specifically, such as Figure 1-4 As shown, the steel pipe straightening mechanism also includes a support assembly, which includes a first bearing seat 41 and a second bearing seat 42. Both the first bearing seat 41 and the second bearing seat 42 are mounted on the frame 1, and the straightening machine body 2 is rotatably mounted between the first bearing seat 41 and the second bearing seat 42.

[0046] In this embodiment, the arrangement of the first bearing seat 41 and the second bearing seat 42 ensures the rotation and support of the straightening machine body 2 during the straightening process, thereby achieving uniform straightening of the steel pipe;

[0047] Specifically, such as Figure 1-4 As shown, the steel pipe straightening mechanism also includes a conveying assembly, which includes a first conveying mechanism located at one end near the first synchronous pulley 34. The first conveying mechanism includes a first upper conveying wheel 51, a first lower conveying wheel 52, a first upper conveying platform 53, and a first lower conveying platform 54. The first upper conveying wheel 51 is rotatably mounted on the first upper conveying platform 53, and the first lower conveying wheel 52 is rotatably mounted on the first lower conveying platform 54. The first upper conveying wheel 51 is provided with a first conveying groove 511, and the first lower conveying wheel 52 is provided with a second conveying groove 521. The first conveying groove 511 and the second conveying groove 521 are opposite to each other to form a first conveying channel 55.

[0048] Specifically, such as Figure 1-4 As shown, a first guide frame 12 is also installed on the frame 1, a first upper conveyor 53 is slidably mounted on the first guide frame 12, and a first lower conveyor 54 is installed on the first guide frame 12;

[0049] The first guide frame 12 is provided with two first auxiliary guide components. The first auxiliary guide components include a first fixed guide plate 121, a first movable guide plate 122, and a first guide cylinder 123. The first fixed guide plate 121 is provided with a first mounting groove, and the first movable guide plate 122 is provided with a second mounting groove. The first fixed guide plate 121 is installed on one side of the first guide frame 12, and the first movable guide plate 122 is installed on the first fixed guide plate 121 by two first fastening bolts. The first mounting groove is adapted to form a first mounting cavity 124 for installing the first guide cylinder 123 when the first fixed guide plate 121 and the first movable guide plate 122 are installed in place, together with the second mounting groove.

[0050] The first guide cylinder 123 is provided with a first guide channel 125 suitable for passing through a steel pipe.

[0051] In this embodiment, two first auxiliary guide components are respectively installed on both sides of the first guide frame 12. The central axis of the first guide channel 125 is consistent with the central axis of the first conveying channel 55. The diameter of the first guide channel 125 is slightly larger than the diameter of the steel pipe to be straightened. When it is necessary to adapt to steel pipes of different specifications, the first movable guide plate 122 is disassembled by loosening the two first fastening bolts, the first guide cylinder 123 is removed, another first guide cylinder 123 that is suitable for the diameter of the steel pipe is replaced, it is installed in the first mounting cavity 124, and the two first fastening bolts are tightened.

[0052] Specifically, such as Figure 1-4As shown, the steel pipe straightening mechanism also includes a first adjusting device, which includes a first lead screw and nut pair. The first lead screw 126 in the first lead screw and nut pair is rotatably mounted on the first guide frame 12. The first nut in the first lead screw and nut pair is connected to the first upper conveyor table 53. Rotating the first lead screw 126 causes the first upper conveyor table 53 to slide, thereby adjusting the distance between the first upper conveyor wheel 51 and the first lower conveyor wheel 52.

[0053] In this embodiment, the first lead screw 126 is also provided with a first handwheel 126A for easy operation.

[0054] Specifically, such as Figure 1-4 As shown, the conveying assembly also includes a second conveying mechanism, which is located at the end away from the first synchronous pulley 34. The second conveying mechanism includes a second upper conveying wheel 61, a second lower conveying wheel 62, a second upper conveying platform 63, and a second lower conveying platform 64. The second upper conveying wheel 61 is rotatably mounted on the second upper conveying platform 63, and the second lower conveying wheel 62 is rotatably mounted on the second lower conveying platform 64. The second upper conveying wheel 61 is provided with a third conveying groove 611, and the second lower conveying wheel 62 is provided with a fourth conveying groove 621. The third conveying groove 611 and the fourth conveying groove 621 form a second conveying channel 65.

[0055] Specifically, such as Figure 1-4 As shown, a second guide frame 13 is also installed on the frame 1, a second upper conveyor 63 is slidably mounted on the second guide frame 13, and a second lower conveyor 64 is installed on the second guide frame 13.

[0056] The second guide frame 13 is provided with at least one second auxiliary guide assembly. The second auxiliary guide assembly includes a second fixed guide plate 131, a second movable guide plate 132, and a second guide cylinder 133. The second fixed guide plate 131 is provided with a third mounting groove 131A, and the second movable guide plate 132 is provided with a fourth mounting groove 132A. The second fixed guide plate 131 is installed on one side of the second guide frame 13, and the second movable guide plate 132 is installed on the second fixed guide plate 131 by at least one second fastening bolt. The third mounting groove 131A is adapted to form a second mounting cavity 134 for installing the second guide cylinder 133 when the second fixed guide plate 131 and the second movable guide plate 132 are installed in place, together with the fourth mounting groove 132A.

[0057] The second guide cylinder 133 is provided with a second guide channel 135 suitable for the passage of steel pipes.

[0058] In this embodiment, two second auxiliary guide components are respectively installed on both sides of the second guide frame 13, the central axis of the second guide channel 135 is consistent with the central axis of the second conveying channel 65, and the diameter of the second guide channel 135 is consistent with the diameter of the straightened steel pipe.

[0059] Specifically, such as Figure 1-4 As shown, the steel pipe straightening mechanism also includes a second adjusting device, which includes a second lead screw and nut pair. The second lead screw 136 in the second lead screw and nut pair is rotatably mounted on the second guide frame 13. The second nut in the second lead screw and nut pair is connected to the second upper conveyor table 63. Rotating the second lead screw 136 causes the second upper conveyor table 63 to slide, thereby adjusting the distance between the second upper conveyor wheel 61 and the second lower conveyor wheel 62.

[0060] In this embodiment, the second lead screw 136 is also provided with a second handwheel 136A for easy operation.

[0061] Specifically, such as Figure 1-4 As shown, the conveying assembly also includes a synchronization mechanism, which includes a support frame 71, a second drive motor 72, a second main synchronous pulley 73, a second driven synchronous pulley 74, a third driven synchronous pulley 75, and a second synchronous belt 76. The support frame 71 is mounted on the frame 1, the second drive motor 72 is mounted on the frame 1, the second main synchronous pulley 73 is mounted on the support frame 71, the movable end of the second drive motor 72 is connected to the second main synchronous pulley 73, the second driven synchronous pulley 74 is connected to the first lower conveyor wheel 52, the third driven synchronous pulley 75 is connected to the second lower conveyor wheel 62, and the second synchronous belt 76 is adapted to connect the second main synchronous pulley 73, the second driven synchronous pulley 74, and the third driven synchronous pulley 75.

[0062] In this embodiment, the second drive motor 72 drives the second main synchronous pulley 73 to rotate clockwise. Since the second synchronous belt 76 connects the second main synchronous pulley 73, the second slave synchronous pulley 74 and the third slave synchronous pulley 75, the second slave synchronous pulley 74 and the third slave synchronous pulley 75 also rotate clockwise, thereby driving the first lower conveyor pulley 52 and the second lower conveyor pulley 62 to rotate clockwise, so as to move the steel pipe.

[0063] Specifically, such as Figure 1-6 As shown, the conveying assembly also includes a tensioning mechanism, which includes a first tensioning wheel 81 and a second tensioning wheel 82. The support frame 71 is provided with a first waist hole 711 and a second waist hole 712. The first tensioning wheel 81 is movably installed in the first waist hole 711 through a first tensioning shaft 83, and the second tensioning wheel 82 is movably installed in the second waist hole 712 through a second tensioning shaft 84. The first tensioning wheel 81 is located near the first lower conveyor wheel 52 and abuts against the second synchronous belt. The second tensioning wheel 82 is located near the second lower conveyor wheel 62 and abuts against the second synchronous belt 76. The positions of the first tensioning wheel 81 and the second tensioning wheel 82 are adjusted to adjust the tension of the second synchronous belt 76.

[0064] In this embodiment, the corresponding first guide cylinder 123 and second guide cylinder 133 are selected according to the diameter of the steel pipe to be straightened. After the first guide cylinder 123 and second guide cylinder 133 are installed in place, the steel pipe to be straightened is put into the first conveying channel 55 through the first guide channel 125. The second drive motor 72 is started to drive the first conveying mechanism to rotate, and the steel pipe to be straightened is conveyed from the first conveying channel 55 to the straightening cavity 21 of the straightening machine body 2.

[0065] The first drive motor 31 is started, causing the straightening machine body 2 to start rotating, which causes the straightening pressure roller 222 in the straightening cavity 21 to rotate together. The steel pipe to be straightened is straightened by contacting the straightening pressure roller 222. The straightened steel pipe is then pulled into the second conveying channel 65, and the output device completes the straightening work.

[0066] If it is necessary to process steel pipes of different diameters, the size of the first conveying channel 33 and the second conveying channel 65 can be adjusted by adjusting the first lead screw nut pair and the second lead screw nut pair to accommodate steel pipes of different diameters, thereby improving the applicability and production efficiency of the equipment.

[0067] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A steel pipe straightening mechanism, characterized in that, include: Rack (1); A straightening machine body (2) is rotatably mounted on the frame (1), and the straightening machine body (2) is provided with a straightening cavity (21). The straightening machine body (2) is provided with a plurality of straightening components, and the distance between two adjacent straightening components is equal. The straightening components include a straightening base (221) and three pressure roller mechanisms. The three pressure roller mechanisms are evenly installed on the straightening machine body (2) around the center of the straightening machine body (2). The three pressure roller mechanisms form a pressure roller channel (226). The pressure roller mechanism includes a straightening pressure roller (222) and a pressure roller support (223). The straightening pressure roller (222) is installed on the pressure roller support (223). The pressure roller support (223) is installed on the straightening base (221) through at least one pressure roller screw nut pair. The pressure roller screw (224) in the pressure roller screw and nut pair is rotatably mounted on the straightening base (221). The pressure roller nut (225) in the pressure roller screw and nut pair is connected to the pressure roller bracket (223). Rotating the pressure roller screw (224) drives the pressure roller bracket (223) to move along the axial direction of the pressure roller screw (224), thereby adjusting the size of the pressure roller channel (226). The first drive mechanism includes a first drive motor (31) and a first synchronous belt (32). The first drive motor (31) is mounted on the frame (1). A first main synchronous pulley (33) is mounted on the movable end of the first drive motor (31). A first slave synchronous pulley (34) is mounted on one end of the straightening machine body (2). The first synchronous belt (32) is adapted to connect the first main synchronous pulley (33) and the first slave synchronous pulley (34). The first drive motor (31) is adapted to drive the straightening machine body (2) to rotate so that the steel pipe to be straightened passes through the pressure roller channel (226) and comes into contact with the straightening pressure roller (222) to achieve the straightening of the steel pipe.

2. The steel pipe straightening mechanism according to claim 1, characterized in that: It also includes a support assembly, which includes a first bearing seat (41) and a second bearing seat (42), both of which are mounted on the frame (1), and the straightening machine body (2) is rotatably mounted between the first bearing seat (41) and the second bearing seat (42).

3. The steel pipe straightening mechanism according to claim 1, characterized in that: It also includes a conveying assembly, which includes a first conveying mechanism disposed at one end near the first synchronous pulley (34). The first conveying mechanism includes a first upper conveying wheel (51), a first lower conveying wheel (52), a first upper conveying platform (53), and a first lower conveying platform (54). The first upper conveying wheel (51) is rotatably mounted on the first upper conveying platform (53), and the first lower conveying wheel (52) is rotatably mounted on the first lower conveying platform (54). The first upper conveying wheel (51) is provided with a first conveying groove (511), and the first lower conveying wheel (52) is provided with a second conveying groove (521). The first conveying groove (511) and the second conveying groove (521) form a first conveying channel (55) relative to each other.

4. The steel pipe straightening mechanism according to claim 3, characterized in that: The frame (1) is also equipped with a first guide frame (12), the first upper conveyor (53) is slidably mounted on the first guide frame (12), and the first lower conveyor (54) is mounted on the first guide frame (12); The first guide frame (12) is provided with at least one first auxiliary guide assembly. The first auxiliary guide assembly includes a first fixed guide plate (121), a first movable guide plate (122), and a first guide cylinder (123). The first fixed guide plate (121) is provided with a first mounting groove, and the first movable guide plate (122) is provided with a second mounting groove. The first fixed guide plate (121) is installed on one side of the first guide frame (12), and the first movable guide plate (122) is installed on the first fixed guide plate (121) by at least one first fastening bolt. The first mounting groove is adapted to form a first mounting cavity (124) for installing the first guide cylinder (123) when the first fixed guide plate (121) and the first movable guide plate (122) are installed in place, together with the second mounting groove. The first guide cylinder (123) is provided with a first guide channel (125) suitable for passing through the steel pipe.

5. The steel pipe straightening mechanism according to claim 4, characterized in that: It also includes a first adjusting device, which includes a first lead screw and nut pair. The first lead screw (126) in the first lead screw and nut pair is rotatably mounted on the first guide frame (12). The first nut in the first lead screw and nut pair is connected to the first upper conveyor table (53). Rotating the first lead screw (126) causes the first upper conveyor table (53) to slide, thereby adjusting the distance between the first upper conveyor wheel (51) and the first lower conveyor wheel (52).

6. The steel pipe straightening mechanism according to claim 3, characterized in that: The conveying assembly further includes a second conveying mechanism, which is located at one end away from the first synchronous pulley (34). The second conveying mechanism includes a second upper conveying wheel (61), a second lower conveying wheel (62), a second upper conveying platform (63), and a second lower conveying platform (64). The second upper conveying wheel (61) is rotatably mounted on the second upper conveying platform (63), and the second lower conveying wheel (62) is rotatably mounted on the second lower conveying platform (64). The second upper conveying wheel (61) is provided with a third conveying groove (611), and the second lower conveying wheel (62) is provided with a fourth conveying groove (621). The third conveying groove (611) and the fourth conveying groove (621) form a second conveying channel (65) relative to each other.

7. The steel pipe straightening mechanism according to claim 6, characterized in that: A second guide frame (13) is also installed on the frame (1), the second upper conveyor (63) is slidably mounted on the second guide frame (13), and the second lower conveyor (64) is mounted on the second guide frame (13); The second guide frame (13) is provided with at least one second auxiliary guide assembly. The second auxiliary guide assembly includes a second fixed guide plate (131), a second movable guide plate (132), and a second guide cylinder (133). The second fixed guide plate (131) is provided with a third mounting groove (131A), and the second movable guide plate (132) is provided with a fourth mounting groove (132A). The second fixed guide plate (131) is installed on one side of the second guide frame (13), and the second movable guide plate (132) is installed on the second fixed guide plate (131) by at least one second fastening bolt. The third mounting groove (131A) is adapted to form a second mounting cavity (134) for installing the second guide cylinder (133) when the second fixed guide plate (131) and the second movable guide plate (132) are installed in place, together with the fourth mounting groove (132A). The second guide cylinder (133) is provided with a second guide channel (135) suitable for passing through the steel pipe.

8. The steel pipe straightening mechanism according to claim 7, characterized in that: It also includes a second adjustment device, which includes a second lead screw and nut pair. The second lead screw (136) in the second lead screw and nut pair is rotatably mounted on the second guide frame (13). The second nut in the second lead screw and nut pair is connected to the second upper conveyor table (63). Rotating the second lead screw (136) causes the second upper conveyor table (63) to slide, thereby adjusting the distance between the second upper conveyor wheel (61) and the second lower conveyor wheel (62).

9. The steel pipe straightening mechanism according to claim 6, characterized in that: The conveying assembly further includes a synchronization mechanism, which includes a support frame (71), a second drive motor (72), a second main synchronous pulley (73), a second slave synchronous pulley (74), a third slave synchronous pulley (75), and a second synchronous belt (76). The support frame (71) is mounted on the frame (1), the second drive motor (72) is mounted on the frame (1), the second main synchronous pulley (73) is mounted on the support frame (71), the movable end of the second drive motor (72) is connected to the second main synchronous pulley (73), the second slave synchronous pulley (74) is connected to the first lower conveyor wheel (52), the third slave synchronous pulley (75) is connected to the second lower conveyor wheel (62), and the second synchronous belt (76) is adapted to connect the second main synchronous pulley (73), the second slave synchronous pulley (74), and the third slave synchronous pulley (75).

10. The steel pipe straightening mechanism according to claim 9, characterized in that: The conveying assembly further includes a tensioning mechanism, which includes a first tensioning wheel (81) and a second tensioning wheel (82). The support frame (71) is provided with a first waist hole (711) and a second waist hole (712). The first tensioning wheel (81) is movably installed in the first waist hole (711) through a first tensioning shaft (83), and the second tensioning wheel (82) is movably installed in the second waist hole (712) through a second tensioning shaft (84). The first tensioning wheel (81) is located near the first lower conveying wheel (52) and abuts against the second synchronous belt. The second tensioning wheel (82) is located near the second lower conveying wheel (62) and abuts against the second synchronous belt (76). The positions of the first tensioning wheel (81) and the second tensioning wheel (82) are adjusted to adjust the tension of the second synchronous belt (76).

Images