CN215279273U

CN215279273U - Large-scale steel pipe straightener

Info

Publication number: CN215279273U
Application number: CN202023123651.XU
Authority: CN
Inventors: 高仕恒; 陈继; 王海平; 高建辉
Original assignee: Xuzhou Dayi Heavy Forging Equipment Co ltd
Current assignee: Xuzhou Dayi Heavy Forging Equipment Co ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-12-24
Anticipated expiration: 2030-12-21

Abstract

The utility model discloses a large-scale steel pipe straightener, which comprises a straightening workbench, wherein a straightening host which can move along the straightening workbench is arranged on the straightening workbench, and both sides of the straightening host are provided with a bracket which can move along the straightening workbench and is used for supporting a steel pipe and a lifting rotating mechanism which is used for lifting and rotating the steel pipe; the straightening main machine comprises a rectangular frame, the straightening workbench penetrates through the rectangular frame, a main cylinder is arranged on the inner side of the top of the rectangular frame, a pressing block for straightening is arranged at the end of the main cylinder, a moving mechanism matched with the straightening workbench is arranged on the inner side of the bottom of the rectangular frame, and a bottom supporting mechanism is arranged on the outer side of the bottom of the rectangular frame. The utility model discloses the alignment host computer can remove, and the bracket also can remove, and lifting and drop rotating mechanism also can remove, and they all can round trip movement on the alignment workstation to adapt to the steel pipe of different specifications, the crooked alignment of different length.

Description

Large-scale steel pipe straightener

Technical Field

The utility model relates to a large-scale steel pipe straightener belongs to straightener technical field.

Background

Along with the development of engineering technology, the demand on large engineering cylinders is more and more, the stroke of the engineering cylinder is longer and longer, the diameter is larger and larger, the cylinder body is longer and easier to deform, and in order to solve the problem of bending deformation of large steel pipes, a large steel pipe straightening machine which can rotate the steel pipes and straighten different positions is urgently needed.

SUMMERY OF THE UTILITY MODEL

To the problem that above-mentioned prior art exists, the utility model provides a large-scale steel pipe straightener can carry out the alignment work to the steel pipe of different length specifications.

In order to achieve the purpose, the large-scale steel pipe straightener comprises a straightening workbench, wherein a straightening host machine which can move along the straightening workbench is arranged on the straightening workbench, and brackets which can move along the straightening workbench and are used for supporting the steel pipes and a lifting rotating mechanism which is used for lifting and rotating the steel pipes are arranged on two sides of the straightening host machine; the straightening main machine comprises a rectangular frame, the straightening workbench penetrates through the rectangular frame, a main cylinder is arranged on the inner side of the top of the rectangular frame, a pressing block for straightening is arranged at the end of the main cylinder, a moving mechanism matched with the straightening workbench is arranged on the inner side of the bottom of the rectangular frame, and a bottom supporting mechanism is arranged on the outer side of the bottom of the rectangular frame.

Furthermore, the moving mechanism comprises a first motor fixed on the rectangular frame, a first output shaft of the first motor is connected with a first transmission shaft through a bevel gear set, a first gear is mounted on the first transmission shaft, and a first rack matched with the first gear is arranged on the side surface of the straightening workbench; a guide rail is arranged above the first rack, and a second roller matched with the guide rail is arranged on the rectangular frame.

Further, the bottom support mechanism comprises first rollers symmetrically arranged on the outer side of the bottom of the rectangular frame, and a first guide rail is arranged below the first rollers.

Furthermore, the bracket and the lifting and rotating mechanism are moved on the straightening workbench through a mobile station matched with the straightening workbench.

Furthermore, the mobile station comprises a table body arranged at the top of the straightening workbench and a second motor arranged on one side of the table body, a second output shaft of the second motor is connected with a second gear, and a second rack matched with the second gear is arranged on the side face of the upper end of the straightening workbench.

Furthermore, a V-shaped iron support platform is arranged on the bracket.

Furthermore, the lifting and rotating mechanism comprises a base and a top cylinder arranged on the base, the output end of the top cylinder is provided with a lifting platform, and the base is provided with a guide rod matched with the lifting platform; one side of elevating platform is equipped with the third motor, the top of elevating platform is equipped with drive roll axle and driven roll axle, the tip of drive roll axle is equipped with coaxial fourth gear, the third output shaft of third motor is connected with the third gear with fourth gear looks meshing.

Further, one side of elevating platform is equipped with the clamping device with drive roll axle and driven voller axle complex, clamping device includes the vice jar of fixed mounting on the elevating platform lateral wall, the top of vice jar is equipped with the limiting plate of fixing on the elevating platform lateral wall, be equipped with L shape through-hole in the limiting plate, the output of vice jar articulates there is the supporting rod of L shape, be equipped with on the supporting rod with through-hole sliding fit's slider, the supporting rod tip is equipped with the pinch roller.

Further, the straightening bench and parts of the straightening main machine are arranged below the ground.

Furthermore, a fence is arranged around the large steel pipe straightening machine.

Compared with the prior art, the beneficial effects of the utility model are that:

by arranging the straightening host, the straightening workbench, the bracket and the lifting and rotating mechanism, after the steel pipe is placed on the bracket, the lifting and rotating mechanism can be used for jacking the steel pipe from the bracket according to the actual bending condition of the steel pipe, then the rotation of the steel pipe is driven, the bending condition of the steel pipe is measured and marked, then the bracket and the straightening host are moved, so that two sides of the bent part of the steel pipe can be supported by the bracket, and the bent part is pressed by the pressing block, thereby achieving the purpose of straightening; the straightening host machine can move, the bracket can also move, and the lifting rotating mechanism can also move, and both the straightening host machine and the bracket can move back and forth on the straightening workbench to adapt to the straightening of steel pipes with different specifications and bent lengths; the V-shaped iron support platform can adapt to steel pipes with more specifications, and meanwhile, the stability of the support can be ensured; through setting up clamping device, when the steel pipe only relied on self weight can't form sufficient frictional force and make the drive roll axle can drive the steel pipe and rotate, can hold the steel pipe through the pinch roller, make it can be rotated by the drive roll axle drive.

Drawings

FIG. 1 is a perspective view of the overall structure of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a schematic top view of the present invention;

fig. 4 is a schematic side view of the present invention;

FIG. 5 is an enlarged view of the point A in FIG. 4 according to the present invention;

fig. 6 is a schematic view of the bracket of the present invention;

fig. 7 is a schematic structural view of the lifting and rotating mechanism of the present invention.

In the figure: 1. ground, 2, a straightening bench, 3, a straightening host, 31, a rectangular frame, 32, a main cylinder, 33, a pressing block, 34, a bottom supporting mechanism, 341, a first roller, 342, a first guide rail, 35, a moving mechanism, 351, a first motor, 352, a first output shaft, 353, a first transmission shaft, 354, a first gear, 355, a first rack, 356, a second roller, 4, a bracket, 5, a lifting and rotating mechanism, 51, a base, 511, a guide rod, 52, a top cylinder, 53, a lifting platform, 54, a third motor, 55, a third output shaft, 56, a third gear, 57, a fourth gear, 58, a driving roll shaft, 59, a driven roll shaft, 6, a fence, 7, a moving platform, 71, a platform body, 72, a second motor, 73, a second output shaft, 74, a second gear, 75, a second rack, 8, a secondary cylinder, 9, a clamping device, 91, a pressing wheel, 92, a sliding block, 93. clamping rods 10 and limit plates.

Detailed Description

The technical solutions in the implementation of the present invention will be clear from the following description and accompanying drawings, and the described embodiments are only some embodiments, not all embodiments, of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 7, an embodiment of the present invention provides a large steel pipe straightener, which includes a long strip-shaped straightening worktable 2, a straightening main machine 3 capable of moving along the straightening worktable 2 is disposed on the straightening worktable 2, and a bracket 4 for supporting a steel pipe and a lifting and rotating mechanism 5 for lifting and rotating the steel pipe, which are capable of moving along the straightening worktable 2, are disposed on both sides of the straightening main machine 3; the main straightening machine 3 comprises a rectangular frame 31, the rectangular frame 31 can form a closed stress system, the straightening workbench 2 penetrates through the rectangular frame 31, a main cylinder 32 is arranged on the inner side of the top of the rectangular frame 31, a pressing block 33 for straightening is arranged at the end of the main cylinder 32, a moving mechanism 35 matched with the straightening workbench 2 is arranged on the inner side of the bottom of the rectangular frame 31, and a bottom supporting mechanism 34 is arranged on the outer side of the bottom of the rectangular frame 31. Through setting up alignment host computer 3, alignment workstation 2, bracket 4 and lifting and drop rotating mechanism 5, after placing bracket 4 to the steel pipe, can be according to the actual crooked condition of steel pipe, use lifting and drop rotating mechanism 5 with the steel pipe jack-up on bracket 4, then the rotation of drive steel pipe, measure the crooked condition of mark steel pipe, then through removing bracket 4 and alignment host computer 3, make the both sides at the crooked position of steel pipe can be supported by bracket 4 and live, use briquetting 33 to press the crooked position, reach the purpose of alignment. The straightening host machine 3 can move, the bracket 4 can also move, and the lifting rotating mechanism 5 can also move, and the straightening host machine and the lifting rotating mechanism can move back and forth on the straightening worktable 2 so as to adapt to the straightening of steel pipes with different specifications and bending with different lengths.

Further, the moving mechanism 35 includes a first motor 351 fixed on the rectangular frame 31, a first output shaft 352 of the first motor 351 is connected with a first transmission shaft 353 through a bevel gear set, the first transmission shaft 353 is provided with a first gear 354, and a side surface of the straightening table 2 is provided with a first rack 355 matched with the first gear 354; a guide rail is arranged above the first rack 355, and a second roller 356 matched with the guide rail is arranged on the rectangular frame 31. As can be seen from fig. 5, the first output shaft 352 drives the first transmission shafts 353 located at two sides of the straightening table 2 through two sets of bevel gears, and then the movement of the straightening main machine 3 on the straightening table 2 is realized through the engagement of the first gear 354 and the first rack 355, and the second roller 356 can play a certain role in bearing.

Further, the bottom support mechanism 34 includes first rollers 341 symmetrically disposed at the bottom outer side of the rectangular frame 31, and a first guide rail 342 is disposed below the first rollers 341. As can be seen in fig. 4, the main load bearing of the straightening main machine 3 is the cooperation of the first rail 342 and the second roller 356 at the bottom.

Further, the bracket 4 and the lifting and rotating mechanism 5 are both moved on the straightening bench 2 by a moving table 7 matched with the straightening bench 2. As can be seen from fig. 4, the mobile station 7 is arranged on the straightening bench 2, and the bracket 4 and the lifting and rotating mechanism 5 use the same mobile device, thereby facilitating maintenance and reducing cost.

Further, the moving table 7 includes a table body 71 disposed on the top of the straightening table 2 and a second motor 72 disposed on one side of the table body 71, a second gear 74 is connected to a second output shaft 73 of the second motor 72, and a second rack 75 matched with the second gear 74 is disposed on the upper end side of the straightening table 2.

Furthermore, a V-shaped iron support is arranged on the bracket 4. The V-shaped iron support platform can adapt to steel pipes with more specifications, and meanwhile, the stability of the support can be guaranteed. Fig. 6 shows an iron support with an arc shape, which can increase the contact area for steel pipes with the same radian, but has poor adaptability, and the iron support needs to be replaced when steel pipes with different specifications are replaced.

Further, the lifting and rotating mechanism 5 comprises a base 51 and a top cylinder 52 installed on the base 51, the output end of the top cylinder 52 is provided with a lifting platform 53, and the base 51 is provided with a guide rod 511 matched with the lifting platform 53; a third motor 54 is arranged on one side of the lifting platform 53, a driving roller shaft 58 and a driven roller shaft 59 are arranged on the top of the lifting platform 53, a coaxial fourth gear 57 is arranged at the end part of the driving roller shaft 58, and a third output shaft 55 of the third motor 54 is connected with a third gear 56 meshed with the fourth gear 57. As shown in fig. 7, the lifting table 53 is driven by the top cylinder 52 to move up and down along the guide rod 511, the third gear 56 is driven to rotate by the third motor 54, and the driving roller shaft 58 can be driven to rotate by the fourth gear 57 driven by the third gear 56. Since the steel pipes are placed on the drive roller shaft 58 and the driven roller shaft 59, the rotation of the drive roller shaft 58 will bring the steel pipes and the driven roller shaft 59 into rotation, where the friction between the steel pipes and the drive roller shaft 58 and the driven roller shaft 59 is mainly relied upon.

Further, one side of elevating platform 53 is equipped with clamping device 9 with drive roll axle 58 and driven voller axle 59 matched with, clamping device 9 includes the vice jar 8 of fixed mounting on the elevating platform 53 lateral wall, the top of vice jar 8 is equipped with the limiting plate 10 of fixing on the elevating platform 53 lateral wall, be equipped with L shape through-hole in the limiting plate 10, the output of vice jar 8 articulates there is the supporting rod 93 of L shape, be equipped with on the supporting rod 93 with through-hole sliding fit's slider 92, the supporting rod 93 tip is equipped with pinch roller 91. As shown in fig. 7, the up-and-down movement of the sub-cylinder 8 drives the clamping rod 93 to move up and down, the slider 92 will move along the shape of the through hole due to the fit between the slider 92 and the through hole, when the sub-cylinder 8 is jacked up, the slider 92 gradually slides to the horizontal position of the through hole, and in the process, the clamping rod 93 gradually rotates to the right so that the pinch roller 91 leaves above the driving roller shaft 58 and the driven roller shaft 59; when the auxiliary cylinder 8 is pulled downwards, the sliding block 92 gradually slides to the vertical part of the through hole, in the process, the clamping rod 93 gradually rotates leftwards, finally the pressing wheel 91 is positioned right above the position between the driven roller shaft 59 and the driving roller shaft 58, the three form a triangular clamping frame potential, and when the auxiliary cylinder 8 is continuously pulled downwards, the pressing wheel 91 compresses the steel pipe to increase the friction force between the steel pipe and the driving roller shaft 58. The main effect of this structure is that when the steel pipe only relies on self weight and can't form sufficient frictional force and make drive roll axle 58 can drive the steel pipe and rotate, can hold the steel pipe through pinch roller 91, make it can be driven by drive roll axle 58 and rotate.

Further, the parts of the straightening bench 2 and the straightening bench 3 are arranged below the ground 1. As shown in fig. 1, this can reduce the overall height of the straightener relative to the ground 1, reducing the need for plant height.

Furthermore, a fence 6 is arranged around the large steel pipe straightening machine. The safety is increased.

When in use: the steel pipe is firstly placed on the lifting and rotating mechanism 5 or the bracket 4, and then the lifting and rotating mechanism 5 is used for jacking the steel pipe and rotating the steel pipe, and the rotation aims at detecting the bending degree of the steel pipe. And (5) marking after the detection is finished. Then the bracket 4 is moved to the two ends of the bending part, the lifting and rotating mechanism 5 descends to enable the steel pipe to be supported by the bracket 4, the straightening host machine 3 moves to the middle of the bending part, the main cylinder 32 is pressurized, the two points at the lower part are supported, and the pressing block 33 at the upper part is pressed downwards to achieve the aim of straightening.

The main cylinder 32, the top cylinder 52 and the sub-cylinder 8 in the present invention are generally referred to as a driving device, preferably a hydraulic cylinder, capable of performing linear reciprocating motion. The first motor 351, the second motor 72, and the third motor 54 may use servo motors.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art.

Claims

1. A large-scale steel pipe straightener is characterized by comprising a straightening workbench (2), wherein a straightening host (3) capable of moving along the straightening workbench (2) is arranged on the straightening workbench (2), brackets (4) capable of moving along the straightening workbench (2) and used for supporting steel pipes and lifting and rotating mechanisms (5) used for lifting and rotating the steel pipes are arranged on two sides of the straightening host (3); the straightening host (3) comprises a rectangular frame (31), the straightening workbench (2) penetrates through the rectangular frame (31), a main cylinder (32) is arranged on the inner side of the top of the rectangular frame (31), a pressing block (33) for straightening is arranged at the end part of the main cylinder (32), a moving mechanism (35) matched with the straightening workbench (2) is arranged on the inner side of the bottom of the rectangular frame (31), and a bottom supporting mechanism (34) is arranged on the outer side of the bottom of the rectangular frame (31).

2. The large steel pipe straightener according to claim 1, wherein the moving mechanism (35) comprises a first motor (351) fixed on the rectangular frame (31), a first output shaft (352) of the first motor (351) is connected with a first transmission shaft (353) through a bevel gear set, a first gear (354) is installed on the first transmission shaft (353), and a first rack (355) matched with the first gear (354) is arranged on the side surface of the straightening bench (2); a guide rail is arranged above the first rack (355), and a second roller (356) matched with the guide rail is arranged on the rectangular frame (31).

3. The large steel pipe straightener according to claim 2, wherein the bottom support mechanism (34) comprises first rollers (341) symmetrically arranged at the outer side of the bottom of the rectangular frame (31), and a first guide rail (342) is arranged below the first rollers (341).

4. A large steel tube straightener according to claim 3, characterized in that the bracket (4) and the lifting and lowering rotation mechanism (5) are both moved on the straightening bench (2) by a moving table (7) which is fitted to the straightening bench (2).

5. The large steel pipe straightener according to claim 4, wherein the moving table (7) comprises a table body (71) arranged at the top of the straightening bench (2) and a second motor (72) arranged at one side of the table body (71), a second gear (74) is connected to a second output shaft (73) of the second motor (72), and a second rack (75) matched with the second gear (74) is arranged on the side surface of the upper end of the straightening bench (2).

6. A large steel pipe straightener as claimed in claim 1 or 5, characterized in that a V-shaped iron support is provided on the bracket (4).

7. The large steel pipe straightener according to claim 6, wherein the lifting and rotating mechanism (5) comprises a base (51) and a top cylinder (52) installed on the base (51), the output end of the top cylinder (52) is provided with a lifting platform (53), and the base (51) is provided with a guide rod (511) matched with the lifting platform (53); a third motor (54) is arranged on one side of the lifting platform (53), a driving roller shaft (58) and a driven roller shaft (59) are arranged at the top of the lifting platform (53), a coaxial fourth gear (57) is arranged at the end part of the driving roller shaft (58), and a third output shaft (55) of the third motor (54) is connected with a third gear (56) meshed with the fourth gear (57).

8. The large-scale steel pipe straightener according to claim 7, wherein one side of the lifting platform (53) is provided with a clamping device (9) matched with the driving roller shaft (58) and the driven roller shaft (59), the clamping device (9) comprises an auxiliary cylinder (8) fixedly mounted on the side wall of the lifting platform (53), a limiting plate (10) fixed on the side wall of the lifting platform (53) is arranged above the auxiliary cylinder (8), an L-shaped through hole is formed in the limiting plate (10), the output end of the auxiliary cylinder (8) is hinged with an L-shaped clamping rod (93), a sliding block (92) in sliding fit with the through hole is arranged on the clamping rod (93), and a pressing wheel (91) is arranged at the end part of the clamping rod (93).

9. A large steel pipe straightener according to claim 1, characterized in that the straightening bench (2) and parts of the straightening main machine (3) are arranged below the ground (1).

10. The large steel pipe straightener according to claim 1, wherein a fence (6) is arranged around the large steel pipe straightener.