Position adjusting device for super-long seamless steel pipe production

Abstract

The application belongs to the technical field of seamless steel pipe production, and particularly relates to a position adjusting device for super-long seamless steel pipe production, which comprises a guide table and a plurality of sliding bases slidingly arranged on the guide table, each of the sliding bases is provided with a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected with a mounting head, the two sides of the mounting head are slidingly provided with guide arms respectively, the other ends of the two guide arms are connected with U-shaped seats respectively, the U-shaped seats are rotatably provided with supporting rollers respectively, and the sliding base is further provided with a pressing positioning assembly, the pressing positioning assembly comprises a supporting arm fixedly arranged on the sliding base and a connecting arm fixedly connected with the mounting head, a sliding guide structure is arranged between the connecting arm and the supporting arm, the other end of the connecting arm is fixedly connected with a mounting plate, and the mounting plate is provided with a pneumatic cylinder. Thus, the problem that the existing device needs to be readjusted in the upper pressing position after the support height of the steel pipe is changed, thereby causing repeated adjustment, is solved.

Description

Technical Field

[0001] This invention belongs to the field of seamless steel pipe production technology, and in particular relates to a position adjustment device for the production of ultra-long seamless steel pipes. Background Technology

[0002] In the production process of welding, assembly and other processes, existing ultra-long seamless steel pipes are usually supported by roller frames or support rollers, and the position of the steel pipes is adjusted and positioned in conjunction with lifting mechanisms and pressure roller mechanisms to meet the processing requirements of steel pipes of different specifications.

[0003] When adjusting the support height of the steel pipe, the lower support structure and the upper clamping structure of the existing device usually need to be adjusted separately. This can easily lead to the problem that the upper clamping position needs to be readjusted after the support height is changed. This is especially true when multiple support points are used for ultra-long steel pipes, which increases the number of repeated adjustment operations and affects the positioning efficiency and consistency of the steel pipe. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that in existing devices, when adjusting the support height of steel pipes, the lower support structure and the upper clamping structure usually need to be adjusted separately. This can easily lead to the need to readjust the upper clamping position after the support height is changed. This is especially true when multiple support points are used for ultra-long steel pipes, which increases the number of repeated adjustment operations and affects the positioning efficiency and consistency of the steel pipe.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a position adjustment device for the production of ultra-long seamless steel pipes, comprising a guide table and multiple sliding bases slidably disposed on the guide table. Each sliding base is provided with a hydraulic cylinder, the output end of which is fixedly connected to an installation head. Guide arms are slidably disposed on both sides of the installation head, and the other ends of the two guide arms are respectively connected to U-shaped seats. Support rollers are rotatably disposed in the two U-shaped seats. A pressing positioning assembly is also provided on the sliding base. The pressing positioning assembly includes a support arm fixedly disposed on the sliding base and a connecting arm fixedly connected to the installation head. A sliding guide structure is provided between the connecting arm and the support arm. An installation plate is fixedly connected to the other end of the connecting arm. A cylinder is disposed on the installation plate. The output end of the cylinder is connected to a pressing sleeve plate through an elastic connector. A pressing roller is rotatably disposed in the pressing sleeve plate, and the pressing roller is located above the two support rollers.

[0006] Specifically, it also includes a base and a moving platform. The moving platform is slidably mounted on the base, and the guide platform is fixedly mounted on the moving platform. The moving platform is provided with locking bolts for fixing its position.

[0007] Specifically, the guide platform is provided with a plurality of limiting holes spaced apart, and the top of the sliding base is symmetrically provided with limiting bolts that cooperate with the limiting holes. The limiting bolts are connected to the corresponding limiting holes to fix the sliding base.

[0008] Specifically, one end of each of the two guide arms slides through both sides of the mounting head in an alternating manner. Fastening bolts are symmetrically arranged at both ends of the mounting head, and the two fastening bolts correspond to the two guide arms respectively, for fixing the corresponding guide arms.

[0009] Specifically, there are two support arms and two connecting arms. The two support arms are symmetrically fixed on the top of the sliding base. One end of each connecting arm is fixedly connected to both sides of the mounting head, and the other end of each connecting arm is fixedly connected to the mounting plate.

[0010] Specifically, the sliding guide structure includes a support sleeve fixedly disposed on the connecting arm and a sliding arm fixedly disposed at the bottom of the support sleeve, the sliding arm slidingly passing through the top of the corresponding support arm.

[0011] Specifically, the elastic connector includes a support sleeve, a support head, and a support spring. One end of the support sleeve is fixedly connected to the output end of the cylinder. One end of the support head slides through the other end of the support sleeve. The other end of the support head is fixedly connected to the lower pressure plate. The support spring is disposed inside the support sleeve and connected between the inner top of the support sleeve and one end of the support head.

[0012] Specifically, at least one of the U-shaped seats is provided with a drive motor, and the output end of the drive motor is connected to the corresponding support roller to drive the support roller to rotate.

[0013] Specifically, the mobile platform is symmetrically provided with end limiting components at both ends. The end limiting components include a reinforcing head, a reinforcing arm, and an elastic rotating component. One end of the reinforcing head is fixedly connected to the mobile platform, and one end of the reinforcing arm is slidably sleeved on the other end of the reinforcing head. The reinforcing head is provided with a fixing bolt, and the reinforcing arm is provided with a plurality of threaded holes spaced apart to cooperate with the fixing bolt. The elastic rotating component includes an extension arm, a connecting spring, and a rotating head. One end of the extension arm slides through the other end of the reinforcing arm, the connecting spring is disposed between the extension arm and the reinforcing arm, and the rotating head is rotatably connected to the other end of the extension arm.

[0014] Specifically, a welding protective component is provided at the top middle section of the guide platform. The welding protective component includes a support platform and a protective housing detachably mounted on the support platform. The interior of the protective housing is a cavity structure. An arc-shaped groove is provided at the top of the protective housing. Multiple balls are provided on the inner wall of the arc-shaped groove. The protective housing is provided with multiple different specifications, and the protective housings of different specifications have arc-shaped grooves of different sizes.

[0015] Compared with existing technologies, the advantages of this position adjustment device for producing ultra-long seamless steel pipes are: 1. This invention utilizes a linkage structure of hydraulic cylinder, mounting head, connecting arm, and lower positioning component to enable the mounting plate, cylinder, and lower pressure roller to synchronously change the foundation height when the support roller is raised and lowered. The synchronous raising and lowering process is guided by the support arm and sliding guide structure, thereby achieving synchronous position adjustment of the lower support structure and the upper pressing structure. This solves the problem of existing devices requiring readjustment of the upper pressing position after changing the height of the steel pipe support, resulting in repeated adjustments.

[0016] 2. This invention achieves the adjustment and fixation of the distance between the two support rollers through the cooperation structure of two guide arms, U-shaped seats, support rollers and fastening bolts that are slidably set on the mounting head. This allows the device to adjust the support position according to ultra-long seamless steel pipes with different outer diameters, and to adjust the height in conjunction with the hydraulic cylinder. This solves the problem that the fixed support structure is not adaptable to steel pipes of different specifications and that the support structure needs to be replaced.

[0017] 3. The present invention uses an elastic pressing mechanism composed of a cylinder, an elastic connector, a pressing plate and a pressing roller, and a drive motor to drive the support roller to rotate. This enables the steel pipe to maintain elastic rolling positioning between the two support rollers and the pressing roller while rotating, so that the steel pipe can obtain continuous compression and position holding during rotation. This solves the problems that rigid compression can easily affect the rotation of the steel pipe, while insufficient compression can easily cause unstable positioning of the steel pipe. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a position adjustment device for the production of ultra-long seamless steel pipes provided by the present invention; Figure 2 This is a schematic diagram of the structure of a moving platform for a position adjustment device used in the production of ultra-long seamless steel pipes provided by the present invention; Figure 3 This is a schematic diagram of the structure of the mounting plate for a position adjustment device used in the production of ultra-long seamless steel pipes provided by the present invention; Figure 4 This is a structural schematic diagram of a reinforcing arm for a position adjustment device used in the production of ultra-long seamless steel pipes, provided by the present invention. Figure 5This is a schematic diagram of the structure of a pressing and positioning component of a position adjustment device for producing ultra-long seamless steel pipes provided by the present invention; Figure 6 This is a schematic diagram of the structure of the lower pressure roller of a position adjustment device for producing ultra-long seamless steel pipes provided by the present invention; Figure 7 This is a schematic diagram of the support arm of a position adjustment device for producing ultra-long seamless steel pipes provided by the present invention; Figure 8 This invention provides a position adjustment device for the production of ultra-long seamless steel pipes. Figure 7 A magnified structural diagram of part A in the middle; Figure 9 This is a schematic diagram of the structure of the extension arm of a position adjustment device for producing ultra-long seamless steel pipes provided by the present invention; Figure 10 This invention provides a position adjustment device for the production of ultra-long seamless steel pipes. Figure 9 A magnified structural diagram of section B in the middle.

[0019] As shown in the figure: 1. Base; 2. Moving platform; 3. Guide table; 31. Limiting hole; 4. Sliding base; 41. Limiting bolt; 5. Hydraulic cylinder; 6. Mounting head; 61. Fastening bolt; 71. Guide arm; 72. U-shaped seat; 8. Support roller; 9. Drive motor; 10. Pressing positioning assembly; 101. Support arm; 102. Connecting arm; 103. Mounting plate; 104. Cylinder; 105. Elastic connector; 1051. Support sleeve; 1052. Support head; 1053. Support spring; 106. Pressing sleeve plate; 107. Pressing roller; 11. End limiting assembly; 111. Reinforcing head; 112. Reinforcing arm; 113. Elastic rotating assembly; 1131. Extension arm; 1132. Connecting spring; 1133. Rotating head; 12. Welded protective component; 121. Support table; 122. Protective shell. Detailed Implementation

[0020] The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0021] like Figures 1-10As shown, this application proposes a position adjustment device for the production of ultra-long seamless steel pipes, which may include a guide table 3 and multiple sliding bases 4 slidably disposed on the guide table 3. Each sliding base 4 is provided with a hydraulic cylinder 5, and the output end of the hydraulic cylinder 5 is fixedly connected to an installation head 6. Guide arms 71 are slidably disposed on both sides of the installation head 6, and the other ends of the two guide arms 71 are respectively connected to U-shaped seats 72. Support rollers 8 are rotatably disposed in the two U-shaped seats 72. A downward positioning component 10 is also provided on the sliding base 4. The positioning component 10 includes a support arm 101 fixedly mounted on the sliding base 4 and a connecting arm 102 fixedly connected to the mounting head 6. A sliding guide structure is provided between the connecting arm 102 and the support arm 101. The other end of the connecting arm 102 is fixedly connected to a mounting plate 103. A cylinder 104 is provided on the mounting plate 103. The output end of the cylinder 104 is connected to a lower pressure sleeve 106 through an elastic connector 105. A lower pressure roller 107 is rotatably mounted inside the lower pressure sleeve 106. The lower pressure roller 107 is located above the two support rollers 8.

[0022] It should be noted that the mounting head 6 described in this embodiment also serves as the follow-up mounting base for the support roller 8 and the pressing positioning assembly 10. When the hydraulic cylinder 5 drives the mounting head 6 to rise and fall, the guide arm 71, the U-shaped seat 72 and the support roller 8 move with the mounting head 6. At the same time, the connecting arm 102 drives the mounting plate 103, the cylinder 104, the elastic connector 105, the pressing sleeve 106 and the pressing roller 107 to change the base height synchronously. The support arm 101 remains fixed to the sliding base 4. The connecting arm 102 moves relative to the support arm 101 through the sliding guide structure, so that the lower support structure and the upper pressing structure maintain the corresponding follow-up relationship when the height is adjusted. The cylinder 104 can continue to drive the pressing roller 107 to press down independently after the overall height is determined.

[0023] Specifically, the steel pipe is placed between two support rollers 8, and the position of the two support rollers 8 is adjusted by sliding the guide arm 71. When it is necessary to change the support height of the steel pipe, the hydraulic cylinder 5 drives the installation head 6 to rise and fall, and the support rollers 8 and the upper pressing structure connected by the connecting arm 102 rise and fall synchronously. The sliding guide structure guides the movement of the connecting arm 102. After the steel pipe reaches the required height, the cylinder 104 drives the pressing sleeve 106 and the pressing roller 107 to move towards the steel pipe through the elastic connector 105, so that the steel pipe is between the two support rollers 8 and the pressing roller 107. Thus, when adjusting the lower support height, the base position of the upper pressing structure is adjusted simultaneously, reducing the need for separate adjustment of the upper pressing position.

[0024] Furthermore, such as Figures 1-10 As shown, it also includes a base 1 and a moving platform 2. The moving platform 2 is slidably mounted on the base 1, and the guide platform 3 is fixedly mounted on the moving platform 2. The moving platform 2 is provided with locking bolts for fixing its position.

[0025] It should be noted that the mobile platform 2 described in this embodiment carries the guide platform 3 and multiple sliding bases 4 disposed on the guide platform 3. When the mobile platform 2 moves laterally relative to the base 1, each sliding base 4 and its supporting structure can maintain their original relative position and move with the mobile platform 2 as a whole. The locking bolt is used to maintain the current position of the mobile platform 2 after the lateral position is determined.

[0026] Specifically, when the overall support position of the steel pipe needs to be adjusted laterally, the fixing of the moving platform 2 is released, allowing the moving platform 2 to slide laterally along the base 1, thereby driving the guide table 3, sliding base 4, support roller 8 and pressing positioning component 10 to move as a whole. After the adjustment is completed, it is fixed with locking bolts, and then the height of the steel pipe is adjusted by hydraulic cylinder 5, thereby avoiding the repetitive operation caused by adjusting multiple support positions separately.

[0027] Furthermore, such as Figures 1-10 As shown, the guide platform 3 is provided with multiple limiting holes 31 spaced apart, and the top of the sliding base 4 is symmetrically provided with limiting bolts 41 that cooperate with the limiting holes 31. The limiting bolts 41 are connected to the corresponding limiting holes 31 to fix the sliding base 4.

[0028] It should be noted that the multiple limiting holes 31 described in this embodiment are used to provide multiple selectable fixed positions, so that different sliding bases 4 can be independently arranged according to the actual position required to support the steel pipe; after the limiting bolts 41 cooperate with the limiting holes 31, the sliding base 4 can maintain its current position, so that the hydraulic cylinder 5, support roller 8 and pressing positioning component 10 set on it can jointly form a stable support position.

[0029] Specifically, the sliding base 4 is pushed to move on the guide table 3 according to the position where the steel pipe needs to be supported. When the sliding base 4 reaches the corresponding position, the limiting bolt 41 is engaged with the corresponding limiting hole 31 to fix the sliding base 4. Then, the hydraulic cylinder 5 on each sliding base 4 adjusts the support height respectively, so that the ultra-long steel pipe can be supported in multiple positions, and the upper pressing structure at each position is adjusted synchronously with the corresponding support structure, reducing the need for repeated correction of the upper pressing structure at each support position.

[0030] Furthermore, such as Figures 1-10 As shown, one end of each of the two guide arms 71 slides through both sides of the mounting head 6 in an alternating manner. Two fastening bolts 61 are symmetrically arranged at both ends of the mounting head 6. The two fastening bolts 61 correspond to the two guide arms 71 respectively and are used to fix the corresponding guide arms 71.

[0031] It should be noted that the two guide arms 71 described in this embodiment are arranged facing each other on both sides of the mounting head 6 and are staggered to avoid each other, so that the two guide arms 71 can slide relative to the mounting head 6 respectively, thereby driving the corresponding U-shaped seat 72 and support roller 8 to move respectively; the two fastening bolts 61 act on the corresponding guide arms 71 respectively, so that the two support rollers 8 after adjustment maintain the corresponding positions.

[0032] Specifically, when adapting to steel pipes of different outer diameters, loosen the fastening bolts 61 and move the two guide arms 71 respectively, so that the two U-shaped seats 72 and the support rollers 8 move closer or further apart. After the support position is adjusted, the guide arms 71 are fixed with the fastening bolts 61. Since both guide arms 71 are set on the mounting head 6, the two support rollers 8 after adjustment can still be raised and lowered synchronously by the same hydraulic cylinder 5 and maintain a corresponding relationship with the pressing positioning component 10.

[0033] Furthermore, such as Figures 1-10 As shown, there are two support arms 101 and two connecting arms 102. The two support arms 101 are symmetrically fixed on the top of the sliding base 4. One end of the two connecting arms 102 is fixedly connected to both sides of the mounting head 6, and the other end of the two connecting arms 102 is fixedly connected to the mounting plate 103.

[0034] It should be noted that, in this embodiment, the two support arms 101 respectively form the fixed guide bases on both sides of the pressing and positioning component 10, and the two connecting arms 102 rise and fall synchronously with the mounting head 6. The mounting plate 103 is connected between the two connecting arms 102, so that the cylinder 104 and the pressing structure connected to it can move as a whole with the mounting head 6. The support arms 101 and the connecting arms 102 are not fixed as one piece, but maintain a guide relationship that can rise and fall relatively.

[0035] Specifically, when the hydraulic cylinder 5 pushes the mounting head 6 to rise and fall, the two connecting arms 102 move synchronously with the mounting head 6, and drive the mounting plate 103, cylinder 104 and lower pressure roller 107 to change their height together, while the two support arms 101 remain fixed to the sliding base 4, so that the upper pressing structure adjusts its height with the lower support structure on the fixed guide basis, thereby reducing the need to adjust the base position of the lower pressure roller 107 separately after the height of the support roller 8 changes.

[0036] Furthermore, such as Figures 1-10 As shown, the sliding guide structure includes a support sleeve plate fixedly mounted on the connecting arm 102 and a sliding arm fixedly mounted on the bottom of the support sleeve plate. The sliding arm slides through the top of the corresponding support arm 101.

[0037] It should be noted that the support sleeve described in this embodiment moves synchronously with the connecting arm 102. The sliding arm is fixed to the bottom of the support sleeve and extends to the corresponding support arm 101. The sliding arm can slide up and down relative to the support arm 101, so that the fixed support arm 101 forms a guiding constraint on the sliding arm that moves with the connecting arm 102. The two connecting arms 102 are guided by the two sides through the corresponding sliding arms, so that the mounting plate 103 maintains a stable following state during the lifting and lowering process.

[0038] Specifically, when the mounting head 6 drives the connecting arm 102 to rise and fall, the support sleeve on the connecting arm 102 moves synchronously and drives the sliding arm to slide on the top of the support arm 101. The fixed support arm 101 restricts the sliding arm from producing significant lateral displacement, so that the connecting arm 102, the mounting plate 103 and the lower pressure roller 107 can rise and fall stably with the height change of the support roller 8. This ensures that the upper pressing position always corresponds to the lower support position, reducing the need for position correction.

[0039] Furthermore, such as Figures 1-10 As shown, the elastic connector 105 includes a support sleeve 1051, a support head 1052, and a support spring 1053. One end of the support sleeve 1051 is fixedly connected to the output end of the cylinder 104. One end of the support head 1052 slides through the other end of the support sleeve 1051. The other end of the support head 1052 is fixedly connected to the lower pressure plate 106. The support spring 1053 is disposed inside the support sleeve 1051 and connected between the inner top of the support sleeve 1051 and one end of the support head 1052.

[0040] It should be noted that the support head 1052 described in this embodiment can slide axially relative to the support sleeve 1051, and the support spring 1053 is disposed between the two, so that the output action of the cylinder 104 is transmitted to the lower pressure plate 106 through the support sleeve 1051, the support spring 1053 and the support head 1052, thereby forming a force transmission structure that can produce elastic extension and contraction between the cylinder 104 and the lower pressure roller 107.

[0041] Specifically, when the output end of the cylinder 104 moves downward, it drives the support sleeve 1051 to move. The support spring 1053 transmits force to the support head 1052, causing the support head 1052 to push the lower pressure plate 106 and the lower pressure roller 107 towards the steel pipe. After the lower pressure roller 107 contacts the steel pipe, when the steel pipe undergoes local radial changes during rotation, the support head 1052 can slide relative to the support sleeve 1051, and the support spring 1053 provides elastic compensation, so that the lower pressure roller 107 remains in contact with the steel pipe, reducing the need to readjust the upper pressing position.

[0042] Furthermore, such as Figures 1-10As shown, at least one U-shaped seat 72 is provided with a drive motor 9, and the output end of the drive motor 9 is connected to the corresponding support roller 8 to drive the support roller 8 to rotate.

[0043] It should be noted that the drive motor 9 described in this embodiment enables the corresponding support roller 8 to form an active rotation support, and the remaining support rollers 8 and the lower pressure roller 107 can roll with the steel pipe during the rotation of the steel pipe, so that the two lower support rollers 8 and the upper lower pressure roller 107 together form a rolling contact structure that can both restrict the radial position of the steel pipe and allow the steel pipe to rotate.

[0044] Specifically, after the steel pipe is positioned by the support roller 8 and the lower pressure roller 107, the drive motor 9 is started. The drive motor 9 drives the corresponding support roller 8 to rotate, and the steel pipe is rotated through the contact between the support roller 8 and the outer wall of the steel pipe. The other support roller 8 and the lower pressure roller 107 rotate with the steel pipe, so that the steel pipe can complete the rotation processing while maintaining the existing height and pressing position, without the need to remove the positioning and readjust the position of the steel pipe.

[0045] Furthermore, such as Figures 1-10 As shown, the mobile platform 2 is symmetrically provided with end limiting components 11 at both ends. The end limiting components 11 include a reinforcing head 111, a reinforcing arm 112, and an elastic rotating component 113. One end of the reinforcing head 111 is fixedly connected to the mobile platform 2, and one end of the reinforcing arm 112 is slidably sleeved on the other end of the reinforcing head 111. The reinforcing head 111 is provided with a fixing bolt, and the reinforcing arm 112 is provided with a plurality of screw holes spaced apart to cooperate with the fixing bolt. The elastic rotating component 113 includes an extension arm 1131, a connecting spring 1132, and a rotating head 1133. One end of the extension arm 1131 slides through the other end of the reinforcing arm 112, the connecting spring 1132 is provided between the extension arm 1131 and the reinforcing arm 112, and the rotating head 1133 is rotatably connected to the other end of the extension arm 1131.

[0046] It should be noted that the reinforcing arm 112 described in this embodiment can extend and retract relative to the reinforcing head 111 to change the position of the elastic rotating component 113; the extension arm 1131 can also elastically slide relative to the reinforcing arm 112, the connecting spring 1132 elastically constrains the movement of the extension arm 1131, and the rotating head 1133 can maintain rotational contact with the end of the steel pipe, so that the end limiting component 11 has the ability to adjust position, elastically buffer and rotate.

[0047] Specifically, the reinforcing arm 112 is moved according to the position of the steel pipe end, and the reinforcing arm 112 is fixed with fixing bolts and corresponding screw holes, so that the rotating head 1133 corresponds to the end of the steel pipe; when the steel pipe moves axially, the steel pipe pushes the rotating head 1133 and the extension arm 1131 to move, and the connecting spring 1132 provides elastic buffer for the movement. When the steel pipe rotates, the rotating head 1133 can rotate accordingly. Thus, without changing the existing positioning state of the support roller 8 and the lower pressure roller 107, the steel pipe is restricted from significant axial movement, avoiding the need to readjust the main support position.

[0048] Furthermore, such as Figures 1-10 As shown, a welding protective component 12 is provided in the middle of the top of the guide platform 3. The welding protective component 12 includes a support platform 121 and a protective housing 122 that is detachably mounted on the support platform 121. The interior of the protective housing 122 is a cavity structure. An arc-shaped groove is provided on the top of the protective housing 122. Multiple balls are provided on the inner wall of the arc-shaped groove. The protective housing 122 is provided with multiple different specifications, and the protective housing 122 of different specifications has arc-shaped grooves of different sizes.

[0049] It should be noted that the protective housings 122 of different specifications described in this embodiment have arc-shaped grooves of different sizes, so that the protective housings 122 can be replaced according to the outer diameter of the steel pipe. When the steel pipe is located at the arc-shaped groove, it forms rolling contact with multiple balls, so that the steel pipe can rotate at the corresponding position of the protective housing 122. The internal cavity of the protective housing 122 is located below the arc-shaped groove, which can accommodate the welding slag that falls from the vicinity of the welding position of the steel pipe during the welding process.

[0050] Specifically, a protective housing 122 of the corresponding specification is selected according to the outer diameter of the steel pipe to be processed and installed on the support platform 121 so that the outer wall of the steel pipe contacts the ball in the arc-shaped groove. When the drive motor 9 drives the steel pipe to rotate, the ball rolls with the outer wall of the steel pipe, and the welding slag generated during the welding process falls into the internal cavity of the protective housing 122. When changing steel pipes of different specifications, the adaptation is completed by replacing the protective housing 122 of the corresponding specification, without changing the main positioning relationship of the already adjusted sliding base 4, support roller 8 and pressing positioning component 10.

[0051] In summary, the working principle of the position adjustment device for producing ultra-long seamless steel pipes is as follows: First, based on the length and processing position of the ultra-long seamless steel pipe, the moving platform 2 is moved laterally relative to the base 1, and the overall position is fixed by locking bolts. Then, according to the required support position of the steel pipe, the positions of multiple sliding bases 4 on the guide table 3 are adjusted, and fixed by using the cooperation of the limiting bolts 41 and the limiting holes 31. Subsequently, the fastening bolts 61 are loosened, allowing the two guide arms 71 to slide relative to the mounting head 6, thereby driving the two U-shaped seats 72 and the support rollers 8 to move closer or further apart, so that the distance between the two support rollers 8 is adapted to the size of the steel pipe. After completion, the guide arm 71 is fixed with fastening bolts 61. After the steel pipe is placed on the two support rollers 8, the installation head 6 is raised and lowered by the hydraulic cylinder 5, thereby driving the two support rollers 8 to change the support height of the steel pipe. At the same time, since the connecting arm 102 is fixedly connected to the installation head 6, the installation plate 103, cylinder 104, elastic connector 105, lower pressure sleeve 106 and lower pressure roller 107 also rise and fall synchronously with the installation head 6. The support sleeve drives the sliding arm to slide relative to the support arm 101 fixed on the sliding base 4, guiding the follow-up raising and lowering of the upper lower pressure structure. After the steel pipe reaches the required height, it is then... The cylinder 104 pushes the lower pressure plate 106 and the lower pressure roller 107 toward the steel pipe through the support sleeve 1051, support spring 1053, and support head 1052, so that the lower pressure roller 107 elastically presses the steel pipe from above and forms a rolling positioning together with the two lower support rollers 8. When the drive motor 9 drives the corresponding support roller 8 to rotate, it can drive the steel pipe to rotate by contact action. The lower pressure roller 107 and the other support rollers 8 roll with the steel pipe. The end limiting component 11 elastically limits the axial position of the steel pipe through the rotating head 1133. The welding protective part 12 is connected to the protective shell 1 that is compatible with the specifications of the steel pipe. 22 and the ball bearings in the arc-shaped groove cooperate with the steel pipe to rotate and collect welding debris; thus, by establishing the lower support roller 8 and the upper pressing positioning component 10 together on the structural foundation that rises and falls with the installation head 6, the foundation position of the upper pressing structure can be changed synchronously when the support height of the steel pipe changes, and maintain stable movement with the cooperation of the fixed support arm 101 and the sliding guide structure. Finally, only the cylinder 104 is needed to complete the local elastic pressing, thereby solving the problem that the existing device needs to adjust the upper pressing position separately again after adjusting the lower support height, resulting in repeated adjustment of multiple support positions of ultra-long steel pipes.

[0052] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A position adjustment device for producing ultra-long seamless steel pipes, characterized in that, It includes a guide platform (3) and multiple sliding bases (4) slidably disposed on the guide platform (3). Each sliding base (4) is provided with a hydraulic cylinder (5). The output end of the hydraulic cylinder (5) is fixedly connected to an installation head (6). Guide arms (71) are slidably disposed on both sides of the installation head (6). The other ends of the two guide arms (71) are respectively connected to U-shaped seats (72). Support rollers (8) are rotatably disposed in the two U-shaped seats (72). The sliding base (4) is also provided with a pressing positioning component (10). The pressing positioning component (10) includes a support arm (101) fixedly mounted on the sliding base (4) and a connecting arm (102) fixedly connected to the mounting head (6). A sliding guide structure is provided between the connecting arm (102) and the support arm (101). The other end of the connecting arm (102) is fixedly connected to a mounting plate (103). A cylinder (104) is provided on the mounting plate (103). The output end of the cylinder (104) is connected to a pressing sleeve (106) through an elastic connector (105). A pressing roller (107) is rotatably mounted inside the pressing sleeve (106). The pressing roller (107) is located above the two support rollers (8).

2. The position adjustment device for producing ultra-long seamless steel pipes according to claim 1, characterized in that: It also includes a base (1) and a moving platform (2), the moving platform (2) being slidably disposed on the base (1), the guide platform (3) being fixedly disposed on the moving platform (2), and the moving platform (2) being provided with locking bolts for fixing its position.

3. The position adjustment device for producing ultra-long seamless steel pipes according to claim 1, characterized in that: The guide platform (3) is provided with a plurality of limiting holes (31) spaced apart. The top of the sliding base (4) is symmetrically provided with limiting bolts (41) that cooperate with the limiting holes (31). The limiting bolts (41) are connected to the corresponding limiting holes (31) to fix the sliding base (4).

4. The position adjustment device for producing ultra-long seamless steel pipes according to claim 1, characterized in that: One end of each of the two guide arms (71) slides through both sides of the mounting head (6) in an alternating manner. The two ends of the mounting head (6) are symmetrically provided with fastening bolts (61). The two fastening bolts (61) correspond to the two guide arms (71) respectively and are used to fix the corresponding guide arms (71).

5. The position adjustment device for producing ultra-long seamless steel pipes according to claim 1, characterized in that: Two of each of the support arms (101) and connecting arms (102) are provided. The two support arms (101) are symmetrically fixed on the top of the sliding base (4). One end of each of the two connecting arms (102) is fixedly connected to both sides of the mounting head (6), and the other end of each connecting arm (102) is fixedly connected to the mounting plate (103).

6. The position adjustment device for producing ultra-long seamless steel pipes according to claim 5, characterized in that: The sliding guide structure includes a support sleeve fixedly disposed on the connecting arm (102) and a sliding arm fixedly disposed at the bottom of the support sleeve, the sliding arm slidingly penetrating through the top of the corresponding support arm (101).

7. The position adjustment device for producing ultra-long seamless steel pipes according to claim 1, characterized in that: The elastic connector (105) includes a support sleeve (1051), a support head (1052), and a support spring (1053). One end of the support sleeve (1051) is fixedly connected to the output end of the cylinder (104). One end of the support head (1052) slides through the other end of the support sleeve (1051). The other end of the support head (1052) is fixedly connected to the lower pressure plate (106). The support spring (1053) is disposed inside the support sleeve (1051) and connected between the inner top of the support sleeve (1051) and one end of the support head (1052).

8. The position adjustment device for producing ultra-long seamless steel pipes according to claim 1, characterized in that: At least one of the U-shaped seats (72) is provided with a drive motor (9), the output end of the drive motor (9) is connected to the corresponding support roller (8) for driving the support roller (8) to rotate.

9. A position adjustment device for producing ultra-long seamless steel pipes according to claim 2, characterized in that: The mobile platform (2) is symmetrically provided with end limiting components (11) at both ends. The end limiting components (11) include a reinforcing head (111), a reinforcing arm (112), and an elastic rotating component (113). One end of the reinforcing head (111) is fixedly connected to the mobile platform (2), and one end of the reinforcing arm (112) is slidably sleeved on the other end of the reinforcing head (111). The reinforcing head (111) is provided with fixing bolts, and the reinforcing arm (112) is provided with spaced openings. There are multiple screw holes that mate with the fixing bolts; the elastic rotating assembly (113) includes an extension arm (1131), a connecting spring (1132) and a rotating head (1133), one end of the extension arm (1131) slides through the other end of the reinforcing arm (112), the connecting spring (1132) is disposed between the extension arm (1131) and the reinforcing arm (112), and the rotating head (1133) is rotatably connected to the other end of the extension arm (1131).

10. A position adjustment device for producing ultra-long seamless steel pipes according to claim 1, characterized in that: The guide platform (3) is provided with a welding protective component (12) at the top middle section. The welding protective component (12) includes a support platform (121) and a protective shell (122) detachably mounted on the support platform (121). The interior of the protective shell (122) is a cavity structure. An arc-shaped groove is provided at the top of the protective shell (122). Multiple balls are provided on the inner wall of the arc-shaped groove. The protective shell (122) is provided with multiple different specifications. The protective shell (122) of different specifications has arc-shaped grooves of different sizes.

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