H-shaped steel straightening structure and equipment

Abstract

The application provides an H-shaped steel correcting structure and equipment, which comprises an upper rotating roller, a side wall of which is provided with a correcting groove matched with the width of the H-shaped steel; a lower rotating roller, a side wall of which is provided with a correcting boss matched with the spacing of the flange plates of the H-shaped steel; and the correcting boss and the correcting groove are correspondingly arranged. The H-shaped steel correcting structure is arranged between a cooling bed and a roller straightening machine, the upper ends of the two flange plates of a hot-rolled super-large or super-heavy H-shaped steel are bitten into the inner side of the correcting groove, the correcting boss is bitten between the lower ends of the two flange plates of the H-shaped steel, after the H-shaped steel is completely bitten, the flange plates of the H-shaped steel are corrected to be parallel to each other and perpendicular to the web plate, and the corrected H-shaped steel can be smoothly sent to the roller straightening machine at the rear end, thereby improving the work efficiency.

Description

Technical Field

[0001] This invention belongs to the field of H-beam straightening technology, and in particular relates to an H-beam straightening structure and equipment. Background Technology

[0002] During the production of hot-rolled H-beams, cooling water is used to cool the H-beams after hot rolling. This cooling water accumulates in the upper groove of the H-beam, creating a temperature difference between the upper and lower surfaces of the web. The upper surface of the web is colder than the lower surface. Even with a normal rolled shape, the different shrinkage rates of the upper and lower web surfaces after cooling result in the H-beam flanges being wider at the top and narrower at the bottom. Because extra-large and extra-heavy H-beams have greater web thickness and width, deformation is more pronounced. Using traditional processes, extra-large and extra-heavy H-beams cannot naturally bite into the straightener and cannot be straightened. They can only be straightened offline by pressure, leading to low production efficiency in the straightening operation. Summary of the Invention

[0003] In view of this, the present invention aims to provide an H-beam straightening structure and device in order to solve at least one of the above-mentioned technical problems.

[0004] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0005] This invention provides an H-beam straightening structure, comprising:

[0006] The upper roller has a straightening groove on its side wall that matches the width of the H-beam;

[0007] The lower roller has a straightening boss on its side wall that matches the spacing between the flange plates of the H-beam.

[0008] The corrective protrusions and corrective grooves are provided in correspondence.

[0009] Furthermore, the outer edge of the correction groove has a chamfered structure;

[0010] The outer edge of the correction boss has a chamfered structure.

[0011] Furthermore, both the upper and lower rotating rollers are rotatably connected to the bracket. Two upper straightening rings are provided on the outer side of the upper rotating roller, and a pad ring is provided between the two upper straightening rings. The length of the pad ring matches the width of the H-beam, and a straightening groove is formed between the two upper straightening rings.

[0012] The upper straightening ring and pad ring are detachably connected to the upper rotating roller.

[0013] Furthermore, the washer ring can be of various models, with different models having different lengths, and is suitable for H-beams of different widths.

[0014] Furthermore, the outer edge of the upper correction ring near the end face of the pad ring adopts a chamfered structure, and the chamfered structure of the upper correction ring includes a rounded corner portion one and a straight corner portion one connected in sequence from the outside to the inside.

[0015] Furthermore, both the upper and lower rotating rollers are rotatably connected to the bracket. Two lower straightening rings are provided on the outer side of the lower rotating roller, and a second pad ring is provided between the two lower straightening rings. The length of the second pad ring matches the flange spacing of the H-beam. The lower straightening rings and the second pad ring form a straightening boss.

[0016] The lower straightening ring and the second pad ring are detachably connected to the upper rotating roller.

[0017] Furthermore, the second type of washer ring comes in various models, with different lengths for different models, making it suitable for H-beams with different flange spacings.

[0018] Furthermore, the outer edge of the lower correction ring away from the two end faces of the near pad ring adopts a chamfered structure, and the chamfered structure of the upper correction ring includes, from the outside to the inside, two rounded corner portions and two straight corner portions connected in sequence.

[0019] Furthermore, the upper roller has external threads at both ends, and the upper straightening ring is provided with clamping nuts. There are two clamping nuts, which clamp the two upper straightening rings respectively.

[0020] The lower roller has external threads at both ends, and the lower straightening ring is provided with clamping nuts. There are two clamping nuts, which clamp the two lower straightening rings respectively.

[0021] Another aspect of the present invention provides an H-beam straightening device, including an H-beam straightening structure, wherein the H-beam straightening structure is the H-beam straightening structure described above.

[0022] Compared with the prior art, the H-beam straightening structure of the present invention has the following beneficial effects:

[0023] (1) The H-beam straightening structure of the present invention is set between the cooling bed and the roller straightening machine. The upper ends of the two flanges of the hot-rolled extra-large or extra-heavy H-beam are bit into the inside of the straightening groove, and the straightening boss is bit into the lower ends of the two flanges of the H-beam. After the H-beam is fully bitten in, the flanges of the H-beam are straightened to be parallel to each other and perpendicular to the web. The straightened H-beam can be smoothly fed into the roller straightening machine at the rear end, which improves the working efficiency.

[0024] (2) The H-beam straightening structure of the present invention has a lower straightening ring and a second pad ring that are detachably connected to the upper rotating roller. The second pad ring has various models and different lengths, which are suitable for H-beams with different flange spacings, thus broadening the applicable range of the structure.

[0025] (3) The H-beam straightening structure of the present invention has an upper straightening ring and a pad ring 1 that are detachably connected to the upper rotating roller 1. The pad ring 1 comes in various models, and the length of the pad ring 1 varies with different models, making it suitable for H-beams of different widths and broadening the applicability of the structure. Attached Figure Description

[0026] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0027] Figure 1 This is a schematic cross-sectional view of the correction structure described in an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the cross-sectional structure of the H-beam before correction as described in an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the chamfered structure of the upper and lower correction rings as described in an embodiment of the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Upper roller; 2. Lower roller; 3. Upper straightening ring; 4. Lower straightening ring; 5. Washer ring one; 6. Washer ring two; 7. Nut; 8. H-beam; 9. Bracket; 301. Rounded corner section one; 302. Straight corner section one; 401. Rounded corner section two; 402. Straight corner section two. Detailed Implementation

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0033] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] Example 1:

[0035] An H-beam 8 straightening structure, comprising:

[0036] The upper roller 1 has a straightening groove on its side wall that matches the width of the H-beam 8; the lower roller 2 has a straightening boss on its side wall that matches the spacing between the flange plates of the H-beam 8; the straightening boss and the straightening groove are arranged correspondingly, and both the upper roller 1 and the lower roller 2 are rotatably connected to the bracket 9.

[0037] Two upper straightening rings 3 are provided on the outer side of the upper roller 1, and a spacer ring 5 is provided between the two upper straightening rings 3. The length of the spacer ring 5 matches the width of the H-beam 8, and a straightening groove is formed between the two upper straightening rings 3. The upper straightening rings 3 and the spacer ring 5 are detachably connected to the upper roller 1. There are various models of spacer ring 5, and the length of different models of spacer ring 5 is different, which is suitable for H-beams 8 of different widths, thus broadening the applicability of the structure. The outer edge of the upper straightening ring 3 near the end face of the spacer ring 5 adopts a chamfered structure. The chamfered structure of the upper straightening ring 3 includes a rounded corner portion 301 and a straight corner portion 302 connected in sequence from the outside to the inside. Preferably, the inclination angle of the straight corner portion 302 is 6°, and the radius of the arc of the rounded corner portion 301 is 60mm.

[0038] Two lower straightening rings 4 are provided on the outer side of the lower roller, and a second pad ring 6 is provided between the two lower straightening rings 4. The length of the second pad ring 6 matches the flange spacing of the H-beam 8. The lower straightening rings 4 and the second pad ring 6 form a straightening boss. The lower straightening rings 4 and the second pad ring 6 are detachably connected to the upper roller 1. There are various models of the second pad ring 6, and the length of the second pad ring 6 varies with different models, which are suitable for H-beams 8 with different flange spacings, thus broadening the applicability of the structure. The outer edge of the lower straightening ring 4 away from the end face near the second pad ring 6 adopts a chamfered structure. The chamfered structure of the upper straightening ring 3 includes, from the outside to the inside, a rounded corner portion 401 and a straight corner portion 402 connected in sequence. Preferably, the inclination angle of the second straight corner portion 402 is 6°, and the radius of the arc of the second rounded corner portion 401 is 70mm.

[0039] The upper roller 1 has external threads at both ends, and the upper straightening ring 3 is provided with clamping nuts 7. There are two clamping nuts 7, which clamp the two upper straightening rings 3 respectively. The lower roller has external threads at both ends, and the lower straightening ring 4 is provided with clamping nuts 7. There are two clamping nuts 7, which clamp the two lower straightening rings 4 respectively.

[0040] Work process:

[0041] In this scheme, the H-beam 8 straightening structure is set between the cooling bed and the roller straightener. The upper ends of the two flanges of the hot-rolled extra-large or extra-heavy H-beam 8 bite into the inside of the straightening groove. The rounded guide angle part 301 and the straight guide angle part 302 play a guiding role, facilitating the biting in of the upper ends of the flanges. The straightening boss bites between the lower ends of the two flanges of the H-beam 8. The rounded guide angle part 401 and the straight guide angle part 402 play a guiding role, facilitating the biting in of the straightening boss. After the H-beam 8 is fully bitten in, the flanges of the H-beam 8 are straightened to be parallel to each other and perpendicular to the web. The straightened H-beam 8 can then be smoothly fed into the roller straightener at the rear end, improving work efficiency.

[0042] Example 2:

[0043] An H-beam straightening device includes an H-beam straightening structure, wherein the H-beam straightening structure is the H-beam straightening structure of the above embodiment one.

[0044] Those skilled in the art will recognize that the units and method steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0045] In the several embodiments provided in this application, it should be understood that the disclosed methods and systems can be implemented in other ways. For example, the division of units described above is merely a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. The aforementioned units may or may not be physically separated. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of the embodiments of the present invention according to actual needs.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

[0047] The above description is only a preferred embodiment of the present invention and is 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. An H-beam straightening structure, wherein the H-beam straightening structure is disposed between a cooling bed and a roller straightener, characterized in that, include: The upper roller (1) has a straightening groove on its side wall that matches the width of the H-beam (8); The lower roller (2) has a straightening boss on its side wall that matches the spacing between the flange plates of the H-beam (8); The corrective protrusions are correspondingly provided with the corrective grooves; The upper rotating roller (1) and the lower rotating roller (2) are rotatably connected to the bracket (9). The upper rotating roller (1) has two upper straightening rings (3) on its outer side. A pad ring (5) is provided between the two upper straightening rings (3). The length of the pad ring (5) matches the width of the H-beam (8). A straightening groove is formed between the two upper straightening rings (3). The upper straightening ring (3) and the pad ring (5) are detachably connected to the upper rotating roller (1); The washer ring (5) comes in various models, and the length of the washer ring (5) varies with different models, making it suitable for H-beams (8) of different widths. Two lower straightening rings (4) are provided on the outer side of the lower roller, and a second pad ring (6) is provided between the two lower straightening rings (4). The length of the second pad ring (6) matches the flange spacing of the H-beam (8). The lower straightening rings (4) and the second pad ring (6) form a straightening boss. The lower straightening ring (4) and the second pad ring (6) are detachably connected to the lower rotating roller (2); The second type of washer (6) has various models, and the length of the second type of washer (6) varies, which are suitable for H-beams (8) with different flange spacing. The outer edge of the correction groove has a chamfered structure; The outer edge of the corrective boss has a chamfered structure; The outer edge of the upper correction ring (3) near the end face of the pad ring (5) adopts a chamfer structure. The chamfer structure of the upper correction ring (3) includes, from the outside to the inside, a rounded corner part (301) and a straight corner part (302) connected in sequence. The outer edge of the lower correction ring (4) away from the end face of the near pad ring (6) adopts a chamfer structure. The chamfer structure of the lower correction ring (4) includes, from the outside to the inside, a rounded corner part (401) and a straight corner part (402) connected in sequence. The lower roller (2) has external threads at both ends, and the lower straightening ring (4) is provided with clamping nuts (7). There are two clamping nuts (7), which clamp the two lower straightening rings (4) respectively.

2. The H-beam straightening structure according to claim 1, characterized in that: The upper roller (1) has external threads at both ends, and the upper straightening ring (3) is provided with clamping nuts (7). There are two clamping nuts (7), which clamp the two upper straightening rings (3) respectively.

3. An H-beam straightening device, comprising an H-beam straightening structure, characterized in that: The H-beam straightening structure is the H-beam straightening structure described in any one of claims 1-2.

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