Steel pipe straightening device

Abstract

The utility model relates to the technical field of steel pipe straightening equipment, and particularly discloses a steel pipe straightening device which comprises a straightening base, three sets of mounting supports, a first rolling cylinder, a second rolling cylinder, a first half lantern ring, a second half lantern ring, a bearing plate and an adjusting structure. A first rolling cylinder and a second rolling cylinder are arranged in the mounting support, the outer surfaces of the first rolling cylinder and the second rolling cylinder are sleeved with a first half lantern ring and a second half lantern ring respectively, a bearing plate is fixedly connected to the inner wall of the upper end of the mounting support, and a set of adjusting structures are arranged on the upper surface of the bearing plate on the inner wall of the upper end of the mounting support. Through the arrangement of the first half lantern ring and the second half lantern ring, the connection mode that the first half lantern ring and the second half lantern ring are matched with the connecting block, the connecting rod and the inside hexagonal bolt is adopted, the straightening function switching of the device on the square steel pipe can be rapidly achieved, the labor cost and the time cost are effectively saved, and the straightening work efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel pipe straightening equipment technical field especially relates to a steel pipe straightening device. BACKGROUND

[0002] In industrial production, the application of seamless steel pipes is extremely wide, such as building structure, machinery manufacturing, petroleum chemical industry and other fields. However, in the production, transportation or storage process of steel pipes, the steel pipes often bend and deform due to various reasons. This not only affects the appearance quality of the steel pipes, but also seriously reduces their mechanical properties and use performance, which cannot meet the high-precision engineering requirements.

[0003] After searching, the applicant No. 202321744244.1 of Chinese patent discloses a kind of seamless steel pipe straightening device, including base and seamless steel pipe, the upper wall of base is equipped with straightening mechanism, seamless steel pipe is inserted into straightening mechanism, straightening mechanism includes left mounting bracket, right mounting bracket, upper rolling cylinder and lower rolling cylinder, upper rolling cylinder and lower rolling cylinder are rotatably installed between left mounting bracket and right mounting bracket, the side wall of upper rolling cylinder and lower rolling cylinder is all equipped with pressure groove, seamless steel pipe is inserted into being installed in pressure groove, the outside of upper rolling cylinder and lower rolling cylinder is sleeved with sleeve ring, the device not only can be straightened to the seamless steel pipe with circular section, but also can be straightened to the seamless steel pipe with square section, when being straightened to the seamless steel pipe with square section, left mounting bracket and right mounting bracket can be separated, then sleeve ring is installed in pressure groove, so that it can be straightened to the seamless steel pipe with square section by the device, improve the applicability of the device.

[0004] For the above-mentioned technology, the inventor believes that when encountering a square seamless steel pipe, the left mounting bracket and the right mounting bracket need to be separated first, and then the rolling cylinder needs to be separated to install the sleeve ring. The operation is relatively complex and tedious. The relevant straightening parts need to be disassembled to adapt to different shapes of steel pipes, which is time-consuming and laborious, reduces the efficiency of straightening work, and frequent disassembly of the relevant straightening parts may cause damage to the relevant straightening parts, reducing the service life of the straightening parts. When the distance between the upper rolling cylinder and the lower rolling cylinder needs to be adjusted, the screw rods in the left mounting bracket and the right mounting bracket need to be rotated manually at the same time, and the rotation speed of the screw rods on both sides needs to be kept relatively consistent. If there is a large difference in the rotation speed of the screw rods on both sides, the screw rods may be jammed under the connection of the upper rolling cylinder. After a long time of use, the screw rods may be worn out and may need to be replaced, reducing the service life of the straightening device parts. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model provides a kind of steel pipe straightening device.

[0006] The steel pipe straightening device provided by the utility model comprises a straightening base, mounting supports, first rolling cylinders, second rolling cylinders, first half sleeves, second half sleeves, bearing plates and adjusting structures, three groups of mounting supports are fixedly connected to the upper surface of the straightening base, the mounting support located in the middle is horizontal, the first rolling cylinders and the second rolling cylinders are arranged in the mounting supports, the outer surfaces of the first rolling cylinders and the second rolling cylinders are respectively sleeved with the first half sleeves and the second half sleeves, the inner wall of the upper end of the mounting support is fixedly connected with the bearing plate, the upper surface of the bearing plate is provided with one group of adjusting structures, the adjusting structure comprises a worm, a worm wheel, a transmission rod, a transmission bevel gear, a driven bevel gear, a threaded pipe and a threaded rod, the worm wheel is engaged with the upper portion of the worm, the transmission rod is fixedly connected to the middle portion of the worm wheel, the transmission rod is fixedly connected with one group of transmission bevel gears at both ends, one group of driven bevel gears is engaged below the two groups of transmission bevel gears, one group of threaded pipes is fixedly connected to the middle portion of the two groups of driven bevel gears, and the inner portions of the two groups of threaded pipes are respectively threadedly connected with the threaded rods.

[0007] Preferably, a group of adjusting grooves and a group of through holes are formed in the two sides of the mounting support respectively, through holes are formed in the upper surfaces of the upper ends of the two sides of the mounting support respectively, and the through holes in the upper surfaces of the upper ends of the two sides of the mounting support are in communication with the adjusting grooves in the two sides of the mounting support respectively.

[0008] Preferably, the two ends of the first rolling cylinder are arranged in the adjusting grooves in the two sides of the mounting support respectively, a group of fixing rings are rotatably connected to the outer surfaces of the two ends of the first rolling cylinder respectively, connecting holes are formed in the upper surfaces of the two groups of fixing rings respectively, and the two ends of the second rolling cylinder are rotatably connected in the through holes in the two sides of the mounting support respectively.

[0009] Preferably, a rotating groove is formed in one end of the first half sleeve, through holes are formed in the inner walls of the two sides of the rotating groove, two groups of threaded holes are formed in the outer surface of the end of the first half sleeve away from the rotating groove, a connecting block is fixedly connected to one end of the second half sleeve, the connecting block is rotatably connected in the rotating groove in one end of the first half sleeve, connecting rods are fixedly connected to the two sides of the connecting block respectively, the connecting rods on the two sides of the connecting block are rotatably connected in the through holes in the inner walls of the two sides of the rotating groove in one end of the first half sleeve respectively, two groups of threaded holes are formed in the outer surface of the end of the second half sleeve away from the connecting block, the two groups of threaded holes in the outer surface of the end of the first half sleeve away from the rotating groove correspond to the two groups of threaded holes in the outer surface of the end of the second half sleeve away from the connecting block respectively, one group of inner hexagonal bolts is threadedly connected to the two groups of threaded holes in the outer surface of the end of the first half sleeve away from the rotating groove respectively, and the two groups of inner hexagonal bolts extend to and are threadedly connected in the two groups of threaded holes in the outer surface of the second sleeve ring away from the connecting block.

[0010] Preferably, two sets of first ear plates and two sets of second ear plates are fixedly connected to the upper surface of the bearing plate. The side surfaces of the two sets of first ear plates and the two sets of second ear plates are respectively provided with through holes. The two ends of the worm gear are respectively rotatably connected to the inside of the through holes on the side surfaces of the two sets of first ear plates. A servo motor is provided at one end of the worm gear. The power output end of the servo motor is fixedly connected to one end of the worm gear. The bottom of the servo motor is fixedly connected to the upper surface of the bearing plate. The two ends of the transmission rod are respectively rotatably connected to the inside of the through holes on the side surfaces of the two sets of second ear plates.

[0011] Preferably, the inner threads of the two sets of threaded tubes are opposite, and the lower ends of the two sets of threaded tubes are rotatably connected to the through holes on the upper surfaces of the two sides of the mounting bracket. The lower ends of the threaded rods inside the two sets of threaded tubes pass through the through holes on the upper surfaces of the two sides of the mounting bracket and extend to the adjustment grooves on both sides of the mounting bracket. The lower ends of the two sets of threaded rods are fixedly connected to the connecting holes on the upper surfaces of the two sets of fixing rings.

[0012] Compared with related technologies, the steel pipe straightening device provided by this utility model has the following beneficial effects:

[0013] 1. By setting up a first half-ring and a second half-ring, and using the first half-ring and the second half-ring in combination with connecting blocks, connecting rods and internal hexagon bolts, the installation and disassembly process of the ring on the rolling cylinder is greatly simplified. When it is necessary to straighten seamless steel pipes with square cross-sections, the operator does not need to perform complicated installation frame disassembly operations, but only needs to simply assemble and fix the half-rings on the rolling cylinder to quickly realize the device's straightening function for square steel pipes. This effectively saves manpower and time costs, improves the efficiency of straightening work, reduces the risk of damage to straightening components that may be caused by frequent disassembly and installation of straightening components, and extends the service life of straightening components.

[0014] 2、By being provided with the adjusting structure, through starting the servo motor, the worm is driven to rotate, the rotation of the worm drives the rotation of the worm gear meshed with it, and due to the limiting effect of the worm on the worm gear, the worm gear can only rotate stably in the driving direction of the worm, the rotation of the worm gear is transmitted to the two end transmission bevel gears through the middle fixed connection transmission rod, so that the transmission bevel gears rotate, the transmission bevel gears are meshed with the lower driven bevel gears, so as to drive the driven bevel gears to rotate, the two groups of driven bevel gears are fixedly connected with the threaded pipes, and the inner walls of the two groups of threaded pipes are oppositely threaded, when the driven bevel gears drive the threaded pipes to rotate, since the threaded pipes are screwed with the threaded rods with the same screw direction, and the two groups of threaded pipes rotate in opposite directions, under the sliding fit of the adjusting grooves on both sides of the mounting bracket and the fixed ring, the two groups of threaded rods are simultaneously lifted or simultaneously lowered, and the lower ends of the threaded rods are fixedly connected with the fixed rings on both ends of the first rolling cylinder, so as to drive the first rolling cylinder to ascend or descend in the adjusting groove, the accurate adjustment of the distance between the first rolling cylinder and the second rolling cylinder is realized, so as to adapt to the diameter of the steel pipe to be straightened, effectively reduce the jamming and wear of the screw rod, and prolong the service life of the straightening device parts. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The structure schematic view of a preferred embodiment of the steel pipe straightening device provided by the utility model;

[0016] Figure 2 The structure schematic view of another view of the utility model;

[0017] Figure 3 The exploded structure schematic view of the mounting bracket, the first rolling cylinder, the second rolling cylinder and the adjusting structure of the utility model;

[0018] Figure 4 The structure schematic view of the first rolling cylinder and the second rolling cylinder of the utility model are installed with the first half sleeve ring and the second half sleeve ring;

[0019] Figure 5 The exploded structure schematic view of the first rolling cylinder, the first half sleeve ring and the second half sleeve ring of the utility model;

[0020] Figure 6 The structure schematic view of the second rolling cylinder, the first half sleeve ring and the second half sleeve ring of the utility model.

[0021] Label in the figure: 1, straightening base; 2, mounting bracket; 3, first rolling cylinder; 4, second rolling cylinder; 5, first half sleeve ring; 6, second half sleeve ring; 7, bearing plate; 8, adjusting structure; 9, worm; 10, worm gear; 11, transmission rod; 12, driving bevel gear; 13, driven bevel gear; 14, threaded tube; 15, threaded rod; 16, fixed ring; 17, connecting block; 18, connecting rod; 19, inner hexagonal bolt; 20, first ear plate; 21, second ear plate; 22, servo motor. DETAILED DESCRIPTION

[0022] The utility model will be further explained below in combination with the drawings and embodiments.

[0023] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 And Figure 6, including: straightening base 1, mounting bracket 2, first rolling cylinder 3, second rolling cylinder 4, first half sleeve ring 5, second half sleeve ring 6, bearing plate 7 and adjusting structure 8, the straightening base 1 provides stable support foundation for the whole straightening device, bears the weight and force from the mounting bracket 2 and other components and the steel pipe during the straightening process, ensures that the device does not shake or displace during operation, guarantees the accuracy and stability of the straightening work, the upper surface of the straightening base 1 is fixedly connected with three groups of mounting brackets 2, among which the mounting bracket 2 located in the middle is transverse, the first rolling cylinder 3 and the second rolling cylinder 4 inside the transverse mounting bracket 2 are located on both sides of the seamless steel pipe, while the first rolling cylinder 3 and the second rolling cylinder 4 inside the normal mounting bracket 2 are located on the upper surface and the lower surface of the seamless steel pipe, which facilitates the straightening of the seamless steel pipe in the horizontal and vertical directions, the mounting bracket 2 is provided with the first rolling cylinder 3 and the second rolling cylinder 4 inside, the outer surfaces of the first rolling cylinder 3 and the second rolling cylinder 4 are respectively sleeved with the first half sleeve ring 5 and the second half sleeve ring 6, the first half sleeve ring 5 and the second half sleeve ring 6 can be installed when the first rolling cylinder 3 and the second rolling cylinder 4 straighten the seamless steel pipe with a square cross section, and the first half sleeve ring 5 and the second half sleeve ring 6 can be removed when the first rolling cylinder 3 and the second rolling cylinder 4 straighten the seamless steel pipe with a circular cross section, the upper end inner wall of the mounting bracket 2 is fixedly connected with the bearing plate 7, the upper surface of the bearing plate 7 on the upper end inner wall of the mounting bracket 2 is provided with a group of adjusting structures 8, the bearing plate 7 provides a mounting platform for the adjusting structure 8, the mounting bracket 2 plays a role of connecting the straightening base 1 and other components, and provides a mounting position and a fixed foundation for the first rolling cylinder 3, the second rolling cylinder 4, the bearing plate 7 and the adjusting structure 8, the adjusting structure 8 is used for adjusting the distance between the first rolling cylinder 3 and the second rolling cylinder 4, which is convenient for being applicable to seamless steel pipes with different diameters, the adjusting structure 8 comprises a worm 9, a worm wheel 10, a transmission rod 11, a transmission bevel gear 12, a driven bevel gear 13, a threaded pipe 14 and a threaded rod 15, the worm wheel 10 is engaged above the worm 9, the worm 9 can drive the worm wheel 10 to rotate when the worm 9 rotates, and the worm 9 limits the worm wheel 10 to prevent the worm wheel 10 from rotating by itself, the transmission rod 11 is fixedly connected in the middle of the worm wheel 10, the transmission rod 11 can drive the transmission bevel gear 12 at both ends to rotate when the worm wheel 10 rotates, one group of transmission bevel gears 12 is respectively fixedly connected at both ends of the transmission rod 11, the transmission rod 11 can drive the two end transmission bevel gears 12 to rotate when the transmission rod 11 rotates, one group of driven bevel gears 13 is respectively engaged below the two groups of transmission bevel gears 12, the transmission bevel gear 12 can drive the driven bevel gear 13 to rotate when the transmission bevel gear 12 rotates, one group of threaded pipes 14 is respectively fixedly connected in the middle of the two groups of driven bevel gears 13, the driven bevel gear 13 can drive the threaded pipe 14 to rotate when the driven bevel gear 13 rotates, the threaded rod 15 is respectively screw-connected in the two groups of threaded pipes 14, the threaded directions of the threaded rods 15 in the two groups of threaded pipes 14 are consistent, and the threaded pipe 14 is screw-connected with the threaded rod 15 when the threaded pipe 14 rotates.

[0024] In the specific implementation process, a group of adjusting grooves and a group of through holes are respectively formed on the two sides of the mounting bracket 2, through holes are respectively formed on the upper surfaces of the upper ends of the two sides of the mounting bracket 2, the through holes on the upper surfaces of the upper ends of the two sides of the mounting bracket 2 are respectively communicated with the adjusting grooves on the two sides of the mounting bracket 2, the adjusting grooves on the two sides of the mounting bracket 2 provide space and guidance for the installation, adjustment and rotation of the first rolling cylinder 3, so that the first rolling cylinder 3 can adjust the position within a certain range to adapt to the straightening needs of steel pipes with different diameters, and the through holes on the two sides of the mounting bracket 2 facilitate the installation and rotation of the second rolling cylinder 4.

[0025] The two ends of the first rolling cylinder 3 are respectively arranged in the adjusting grooves on the two sides of the mounting bracket 2, a group of fixed rings 16 are respectively rotationally connected to the outer surfaces of the two ends of the first rolling cylinder 3, connecting holes are respectively formed on the upper surfaces of the two groups of fixed rings 16, the two groups of fixed rings 16 can respectively slide up and down in the adjusting grooves on the two sides of the mounting bracket 2, the first rolling cylinder 3 can rise and fall with the rising and falling of the fixed rings 16, the two ends of the first rolling cylinder 3 can rotate in the fixed rings 16, and the two ends of the second rolling cylinder 4 are respectively rotationally connected to the through holes in the two sides of the mounting bracket 2. One end of the second rolling cylinder 4 can be externally connected to the power output end of an external motor, so as to facilitate the rotation of the second rolling cylinder 4.

[0026] The one end of the first half sleeve ring 5 is provided with a rotating groove, through holes are respectively formed on the inner walls of the two sides of the rotating groove, two groups of threaded holes are formed on the outer surface of the end of the first half sleeve ring 5 away from the rotating groove, the one end of the second half sleeve ring 6 is fixedly connected with a connecting block 17, the connecting block 17 is rotationally connected to the rotating groove at the one end of the first half sleeve ring 5, connecting rods 18 are respectively fixedly connected to the two sides of the connecting block 17, and the connecting rods 18 are respectively rotationally connected to the through holes in the inner walls of the two sides of the rotating groove at the one end of the first half sleeve ring 5. By rotating the connecting block 17 in the rotating groove at the one end of the first half sleeve ring 5 and rotating the connecting rods 18 in the through holes in the inner walls of the rotating groove at the one end of the first half sleeve ring 5, the first half sleeve ring 5 and the second half sleeve ring 6 can be opened and closed. Two groups of threaded holes are formed on the outer surface of the end of the second half sleeve ring 6 away from the connecting block 17, the two groups of threaded holes on the outer surface of the end of the first half sleeve ring 5 away from the rotating groove correspond to the two groups of threaded holes on the outer surface of the end of the second half sleeve ring 6 away from the connecting block 17, and a group of internal hexagonal bolts 19 are respectively screwed into the two groups of threaded holes on the outer surface of the end of the second half sleeve ring 5 away from the rotating groove. The two groups of internal hexagonal bolts 19 extend into and are screwed into the two groups of threaded holes on the outer surface of the end of the second sleeve ring away from the connecting block 17. By fixing the hexagonal bolts, the first half sleeve ring 5 and the second half sleeve ring 6 can be fixed on the outer surfaces of the first rolling cylinder 3 or the second rolling cylinder 4, which is used for straightening the seamless steel pipe with a square cross section, and is convenient for taking down the first half sleeve ring 5 and the second half sleeve ring 6.

[0027] The upper surface of the bearing plate 7 is fixedly connected with two groups of first ear plates 20 and two groups of second ear plates 21, the side surfaces of the two groups of first ear plates 20 and the two groups of second ear plates 21 are respectively provided with through holes, the two ends of the worm 9 are respectively rotatably connected in the through holes in the side surfaces of the two groups of first ear plates 20, one end of the worm 9 is provided with a servo motor 22, the servo motor 22 is electrically connected with an external power supply, the power output end of the servo motor 22 is fixedly connected with one end of the worm 9, the servo motor 22 is started, and when the power output end of the servo motor 22 rotates, the worm 9 can be driven to rotate, the bottom of the servo motor 22 is fixedly connected with the upper surface of the bearing plate 7, the two ends of the transmission rod 11 are respectively rotatably connected in the through holes in the side surfaces of the two groups of second ear plates 21, the first ear plate 20 and the second ear plate 21 respectively provide rotation support points for the worm 9 and the transmission rod 11, so that the worm 9 can stably rotate between the two groups of first ear plates 20, the transmission rod 11 can stably rotate between the two groups of second ear plates 21, the shaking and deviation of the components in the rotation process are reduced, the accuracy and stability of the transmission of the adjusting structure 8 are ensured, and it is ensured that the power can be accurately and accurately transmitted between the components.

[0028] The inner walls of the two groups of threaded pipes 14 are oppositely threaded, the lower ends of the two groups of threaded pipes 14 are rotatably connected to the through holes in the upper surfaces of the two side upper ends of the mounting bracket 2, the lower ends of the two groups of threaded rods 15 extend to the adjusting grooves on the two sides of the mounting bracket 2 through the through holes in the upper surfaces of the two side upper ends of the mounting bracket 2, and the lower ends of the two groups of threaded rods 15 are fixedly connected to the upper surface connecting holes in the two groups of fixed rings 16. The two groups of threaded pipes 14 are oppositely threaded, and when the two groups of threaded pipes 14 rotate in opposite directions, the two groups of threaded rods 15 with consistent threaded directions are respectively connected with the inner walls of the two groups of threaded pipes 14 in a threaded manner, and the lower ends of the two groups of threaded rods 15 are fixedly connected to the upper surface connecting holes in the two groups of fixed rings 16. Through the sliding fit of the two groups of fixed rings 16 in the adjusting grooves on the two sides of the mounting bracket 2, the two groups of threaded rods 15 with consistent threaded directions simultaneously rise or simultaneously fall.

[0029] The working principle of the utility model is as follows: according to the shape of the to-be-straightened seamless steel pipe, which is circular or square, and the pipe diameter size, the device is preliminarily adjusted first, if it is a square steel pipe, the first half sleeve ring 5 and the second half sleeve ring 6 are installed on the first rolling cylinder 3 and the second rolling cylinder 4 through the cooperation of the connecting block 17 and the connecting rod 18, and the internal hexagonal bolt 19 is fastened, then according to the approximate diameter of the steel pipe, the servo motor 22 is started to drive the worm 9 to rotate, the rotation of the worm 9 drives the worm wheel 10 engaged with it to rotate, due to the limiting action of the worm 9 on the worm wheel 10, the worm wheel 10 can only rotate stably according to the driving direction of the worm 9, the rotation of the worm wheel 10 is transmitted to the transmission bevel gears 12 at both ends through the transmission rod 11 fixedly connected in the middle, so that the transmission bevel gears 12 rotate, the transmission bevel gears 12 are engaged with the driven bevel gears 13 below, thereby driving the driven bevel gears 13 to rotate, the two groups of driven bevel gears 13 are fixedly connected with the threaded pipes 14 respectively, and the inner walls of the two groups of threaded pipes 14 are oppositely threaded, when the driven bevel gears 13 drive the threaded pipes 14 to rotate, since the threaded pipes 14 are screw-connected with the threaded rods 15 with the same internal thread direction, and the two groups of threaded pipes 14 rotate in opposite directions, under the sliding cooperation of the adjusting grooves on both sides of the mounting bracket 2 and the fixed ring 16, the two groups of threaded rods 15 rise or fall at the same time, and the lower end of the threaded rod 15 is fixedly connected with the fixed ring 16 at both ends of the first rolling cylinder 3, thereby driving the first rolling cylinder 3 to rise or fall in the adjusting groove, so as to realize the accurate adjustment of the distance between the first rolling cylinder 3 and the second rolling cylinder 4, so as to adapt to the diameter of the to-be-straightened steel pipe, the seamless steel pipe to be straightened is sent to the appropriate position between the first rolling cylinder 3 and the second rolling cylinder 4, an external motor connected with one end of the second rolling cylinder 4 is started, so that the second rolling cylinder 4 starts to rotate, in the rotating process of the second rolling cylinder 4, the steel pipe is subjected to the extrusion and friction force of the first rolling cylinder 3 and the second rolling cylinder 4, for the circular steel pipe, the arc surface of the first rolling cylinder 3 and the second rolling cylinder 4 directly contacts with the steel pipe, and the curved steel pipe is straightened through rolling and plastic deformation; for the square steel pipe, the first half sleeve ring 5 and the second half sleeve ring 6 installed on the first rolling cylinder 3 and the second rolling cylinder 4 contact with the square surface of the steel pipe, and straightening is also realized through rolling and friction force, in the straightening process, the distance between the first rolling cylinder 3 and the second rolling cylinder 4 can be adjusted again through the servo motor 22 according to the actual straightening condition, so as to achieve the best straightening effect, when the steel pipe is straightened by the first rolling cylinder 3 and the second rolling cylinder 4 to reach the required straightness standard, the rotation of the second rolling cylinder 4 is stopped, the straightened steel pipe is taken out from the device, and the whole straightening process is completed, then the above-mentioned preparation stage, distance adjustment and straightening process can be repeated according to the condition of the next to-be-straightened steel pipe, so as to realize continuous and efficient steel pipe straightening operation.

[0030] The circuit and control involved in the utility model are prior art, and will not be described in detail here.

[0031] The above merely describes the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which are made by using the content of the present application specification and drawings, are also included in the patent protection scope of the present application.

Claims

1. A steel pipe straightening device, comprising a straightening base (1), a mounting bracket (2), a first rolling cylinder (3), a second rolling cylinder (4), a first half-ring (5), a second half-ring (6), a bearing plate (7), and an adjusting structure (8), characterized in that, The straightening base (1) has three sets of mounting brackets (2) fixedly connected to its upper surface. The mounting bracket (2) located in the middle is horizontal. The mounting bracket (2) has a first rolling cylinder (3) and a second rolling cylinder (4) inside. The outer surfaces of the first rolling cylinder (3) and the second rolling cylinder (4) are respectively fitted with a first half-ring (5) and a second half-ring (6). The upper inner wall of the mounting bracket (2) is fixedly connected to a bearing plate (7). The upper surface of the bearing plate (7) on the upper inner wall of the mounting bracket (2) is provided with a set of adjustment structures (8). The adjustment structures (8) include a worm (9) and a worm wheel (10). The transmission rod (11), transmission bevel gear (12), driven bevel gear (13), threaded tube (14) and threaded rod (15) are connected. A worm wheel (10) meshes above the worm (9). The transmission rod (11) is fixedly connected to the middle of the worm wheel (10). A set of transmission bevel gears (12) are fixedly connected to both ends of the transmission rod (11). A set of driven bevel gears (13) meshes below the two sets of transmission bevel gears (12). A set of threaded tubes (14) are fixedly connected to the middle of the two sets of driven bevel gears (13). Threaded rods (15) are threadedly connected inside the two sets of threaded tubes (14).

2. The steel pipe straightening device according to claim 1, characterized in that, The mounting bracket (2) has a set of adjustment grooves and a set of through holes on both sides. The upper surface of the upper end of both sides of the mounting bracket (2) has through holes. The through holes on the upper surface of the upper end of both sides of the mounting bracket (2) are connected to the adjustment grooves on both sides of the mounting bracket (2).

3. The steel pipe straightening device according to claim 1, characterized in that, The first rolling cylinder (3) is respectively located inside the adjustment grooves on both sides of the mounting bracket (2). A set of fixing rings (16) are rotatably connected to the outer surfaces of the two ends of the first rolling cylinder (3). The upper surfaces of the two sets of fixing rings (16) are respectively provided with connecting holes. The two ends of the second rolling cylinder (4) are respectively rotatably connected to the through holes on both sides of the mounting bracket (2).

4. The steel pipe straightening device according to claim 1, characterized in that, The first half-ring (5) has a rotating groove at one end, and through holes are respectively opened on both sides of the inner wall of the rotating groove. Two sets of threaded holes are opened on the outer surface of the end of the first half-ring (5) away from the rotating groove. A connecting block (17) is fixedly connected to one end of the second half-ring (6). The connecting block (17) is rotatably connected to the inside of the rotating groove at one end of the first half-ring (5). Connecting rods (18) are fixedly connected to both sides of the connecting block (17). The connecting rods (18) on both sides of the connecting block (17) are rotatably connected to the through holes on both sides of the inner wall of the rotating groove at one end of the first half-ring (5). Inside, the outer surface of the second half-ring (6) away from the connecting block (17) has two sets of threaded holes. The two sets of threaded holes on the outer surface of the first half-ring (5) away from the rotating groove correspond to the two sets of threaded holes on the outer surface of the second half-ring (6) away from the connecting block (17). The two sets of threaded holes on the outer surface of the first half-ring (5) away from the rotating groove are threadedly connected to a set of internal hexagon bolts (19). The two sets of internal hexagon bolts (19) extend to and are threadedly connected to the two sets of threaded holes on the outer surface of the second half-ring away from the connecting block (17).

5. The steel pipe straightening device according to claim 1, characterized in that, The upper surface of the bearing plate (7) is fixedly connected to two sets of first ear plates (20) and two sets of second ear plates (21). The side surfaces of the two sets of first ear plates (20) and the two sets of second ear plates (21) are respectively provided with through holes. The two ends of the worm (9) are respectively rotatably connected to the inside of the through holes on the side surfaces of the two sets of first ear plates (20). One end of the worm (9) is provided with a servo motor (22). The power output end of the servo motor (22) is fixedly connected to one end of the worm (9). The bottom of the servo motor (22) is fixedly connected to the upper surface of the bearing plate (7). The two ends of the transmission rod (11) are respectively rotatably connected to the inside of the through holes on the side surfaces of the two sets of second ear plates (21).

6. The steel pipe straightening device according to claim 1, characterized in that, The inner walls of the two sets of threaded tubes (14) have opposite threads. The lower ends of the two sets of threaded tubes (14) are rotatably connected to the through holes on the upper surface of the two sides of the mounting bracket (2). The lower ends of the threaded rods (15) inside the two sets of threaded tubes (14) pass through the through holes on the upper surface of the two sides of the mounting bracket (2) and extend to the adjustment grooves on both sides of the mounting bracket (2). The lower ends of the two sets of threaded rods (15) are fixedly connected to the connecting holes on the upper surface of the two sets of fixing rings (16).

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