An anti-impact bracket for turning over large steel components

Abstract

The present invention discloses an anti-impact bracket for turning over large steel members, which is a device for preventing impact force during the turning-over operation of large steel members. When fabricating and assembling steel members, turning-over operations are required. The traditional method is to use a crane hook to grasp the bottom of the steel member eccentrically and lift the steel member to achieve the purpose of turning it over. The inevitable consequences of such operations on large steel members are: (1) the impact force during the turning-over operation is very large, and the steel member is easily damaged; (2) the ground or working stools are easily damaged; (3) the sudden impact of the steel member turning over causes the trolley traveling horizontally on the crane girder to suddenly brake, and safety accidents are likely to occur. To solve these three major problems, the anti-impact bracket for turning over large steel members of the present invention can cooperate with the crane to lift large steel members without generating impact force during the turning-over operation, and the steel member can be turned over safely and smoothly. The device of the present invention is simple to manufacture, convenient to use, and safe to operate, and is worthy of popularization and use.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering. Specifically, it is a shock-proof support for the turnover of large steel components. Background Art

[0002] When fabricating and assembling steel components, turnover operations are required. The traditional method is to use a crane hook to grasp the bottom of the steel component eccentrically and lift the steel component to achieve its turnover purpose. The inevitable consequences of such operations for large steel components are: (1) The impact force during the turnover operation of the steel component is very large, and the steel component is easily damaged; (2) The ground or working stools are easily damaged; (3) The sudden impact of the steel component turnover causes the trolley moving horizontally on the crane beam to suddenly brake, and safety accidents are likely to occur. For this reason, a shock-proof support for the turnover of large steel components is invented. A closed-loop steel cable is installed on the support to hold the steel component during the turnover operation, so that no impact force is generated, and the steel component can be turned over safely and stably. The device of the present invention is simple to manufacture, can be easily moved to any position according to the production needs, and at the same time, safety protection measures are also installed on the steel support in case of accidental breakage of the steel cable. It is of great significance for safe production and improving product quality and is worthy of popularization and use. Summary of the Invention

[0003] The present invention is a shock-proof support for the turnover of large steel components. The main contents of the invention are as follows:

[0004] 1. Design a steel support that meets the stability conditions: Use parallel double channel steels to weld a top plate, a bottom beam, and side beams at the top and bottom respectively to form two parallel columns in combination. The four sides of the columns are respectively connected to the bottom beam and side beams by diagonal braces to form a geometrically invariant stable structure system.

[0005] 2. Design a closed-loop steel cable: Install four pulleys on the upper and lower parts of the two parallel columns respectively. The steel cable is wrapped around the four pulleys to form a closed loop. The flexible closed-loop steel cable can directly hold the steel component during the turnover operation and can be deformed arbitrarily, thereby eliminating the huge impact force during the turnover operation of the steel component.

[0006] 3. Design a lifting lug: Weld a lifting lug on the top plate of the column. The steel support can be randomly lifted by a crane to the assembly production position of the steel component through a steel shackle tied to the lifting hole.

[0007] 4. Design safety protection measures: To prevent the steel cable from accidentally breaking and whipping out to injure people, weld thin steel plates on the two parallel diagonal braces on the front elevation of the support. The thin steel plates control the steel cable inside the support and will not whip out and injure people after accidental breakage. Description of the Drawings

[0008] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for the description of the embodiments. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0009] Figure 1 It is the elevation view of the anti-impact bracket for the turnover of large steel components;

[0010] Figure 2 It is the side view of the anti-impact bracket for the turnover of large steel components;

[0011] Figure 3 It is the schematic diagram of the working principle of the anti-impact bracket for the turnover of large steel components.

[0012] Reference numerals: 1 - column, 2 - bottom beam, 3 - steel cable, 4 - pulley, 5 - diagonal brace, 6 - side beam, 7 - top plate, 8 - thin steel plate, 9 - pin hole, 10 - end plate, 11 - lifting lug, 12 - lifting hole, 13 - partition plate, 14 - large steel component.

[0013] Note: The front elevation and side elevation of the bracket are both symmetrical, and not all the markings need to be shown. Detailed implementation manners

[0014] 【1】The following further describes the present invention to fully understand it. Obviously, the present invention can be implemented in many other ways different from this description. Those skilled in the art can make similar extensions and deductions according to the actual situation without violating the connotation of the present invention. Therefore, the protection scope of the present invention should not be limited by the specific content described herein.

[0015] 【2】The illustrations of the present invention are schematic. The illustrations are mainly for explaining the technical meaning and are not drawn according to the drawing scale. The specific implementation description herein gives the specifications and dimensions of various specific components, but they can be completely replaced by other similar specifications and dimensions, and this should not be used to limit the protection scope of the present invention.

[0016] Embodiment: To enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention and to make the above-mentioned objects, technical features, and construction methods of the embodiments of the present invention specific and clear, the following further details the technical solutions in the embodiments of the present invention with reference to the drawings.

[0017] 1. Please refer to the attached drawings which show the structure of the anti-impact bracket for the turnover of the steel members of the present invention. The dimensions provided in the embodiment depend on the upper limit dimensions of the steel members during the turnover operation. The large steel member 14 in this embodiment is a box-shaped steel column with dimensions of □1800×1200×38, a length of 12 m, and a weight of 25 tons after adding various partitions and connection plates. Therefore, the column 1 is composed of two channel steels [16 combined in parallel back to back, and the length is taken as the maximum side length of the large steel member 14 plus 1 m, which is 2.8 m; the bottom beam 2 corresponds to the column 1 and is composed of two channel steels [16 combined in parallel back to back in three sections. The length of the middle section is equal to the length of the column 1, and the lengths of the two side sections are taken as 0.5 times the length of the column, that is, 1.4 m + 2.8 m + 1.4 m = 5.6 m; the diagonal brace 5 is made of angle steel L63×5, and the length is taken as 0.7 times the length of the column 1, which is 1.96 m; the side beam 6 is made of I-beam I16, and the length is taken as 0.5 times the length of the column 1, which is 1.4 m. Thus, the overall dimensions of the bracket are determined. A total of two brackets need to be made and placed parallel to each other with a distance of 9.6 m to form the operation bracket. The materials used can be Q235 or Q355.

[0018] 2. The material strength of the steel cable 3 is selected as 2000 Mpa, the diameter is 28 mm, and the length is 19.4 m. The matching wire rope clips are selected with the model KT35-10; the pulley 4 is selected with the WJ4201 model, the pulley diameter is 560 mm, the thickness is 185 mm, and the matching pin shaft diameter is 130 mm and the length is 240 mm.

[0019] 3. The dimensions of the top plate 7 are -26×360×200, the dimensions of the lifting lug 11 are -20×200×100, the dimensions of the end plate 10 are -20×360×140, the dimensions of the partition 13 are -20×200×160, and the thin steel plate 8 has a specification of -3×320 and a length of 1200 mm. The materials used can be Q235 or Q355.

[0020] 4. Bracket manufacturing process sequence: First, make holes. Column 1 is composed of two parallel channel steels [16 with a distance of 200mm. A pin hole 9 with a diameter of 132mm is made at the center of the web 400mm from the end of the top of column 1 and at the center of the web 560mm from the end of the bottom. A hanging hole 12 with a diameter of 40mm is made at the center of the lifting ear 11 → The pin is connected in series with the center of the pulley 4. The pin is inserted into the pin hole 9 of column 1 and then welded to the web of column 1. The weld height is 10mm → The top plate 7 is welded to the top of column 1 → The partition 13 is welded at the midpoint of the middle section of the bottom beam 2 to form a distance of 200m m two parallel channel steel bottom beams 2 → two columns 1 are separated by a net distance of 2.8m, and their bottoms are connected to the bottom beam 2 by T-shaped butt welds → four side beams 6 I-beams I16 are directly connected to the bottom web of the column 1 and connected by welds → end plates 10 are welded to the two ends of the bottom beam 2 → the ends of the four diagonal braces 5 on the front of the bracket are beveled at 45° and welded to the flanges of the column 1 and the bottom beam 2 respectively → the ends of the four diagonal braces 5 on the side of the bracket are beveled at 45° and welded to the web of the column 1 and the flanges of the side beam 6 respectively → top plate 7 is welded on the top of the column 1 → lifting lugs 11 are welded on the top plate 7 → the steel cable 3 is installed around the four pulleys to form an attachment Figure 1 As shown, fasten the wire rope clamp → lay thin steel plates 8 on the diagonal braces 5 on the front facade, the distance between the upper end of the thin steel plates 8 and the flange of the column 1 is 310mm, and the thin steel plates 8 are welded to the diagonal braces 5. The size of all welds is the same as the smaller thickness of the connected steel parts. After the bracket is made, it is painted with anti-rust paint. A total of two brackets need to be made.

[0021] 5. Use a crane to hook the lifting hole 12 through the steel shackle, and lift the bracket to the turning operation position of the 12m long large steel structure 14. The two brackets are parallel and 9.6m apart.

[0022] 6. The bracket of this embodiment can be used for steel members with a maximum side length of the cross section not exceeding 1.8m, otherwise, the bracket specifications need to be increased accordingly. The device of the present invention is simple to manufacture, convenient to operate, safe and reliable, has good effects, and is worthy of promotion and use.

Claims

1. A large steel component turning anti-impact bracket is a device used to prevent the generation of impact force during the turning operation of large steel components, and is characterized in that: The designed impact-resistant bracket mainly includes: columns (1), bottom beams (2), steel cables (3), pulleys (4), diagonal braces (5), side beams (6), top plates (7), and lifting lugs (11). Assembling these 8 components together forms the impact-resistant bracket. Among them, the columns (1) are two parallel channel steels, with the top welded to the top plate (7) and the bottom welded to the bottom beam (2). The bottom beam (2) is connected to the side beam (6) and forms a geometrically stable structure with the column (1) through the diagonal brace (5). Two pulleys (4) are installed at the upper and lower parts of each column (1). The steel cable (3) surrounds the four pulleys (4) to form a closed-loop structure for supporting the steel component (14), so that no impact force will be generated when the steel component (14) is turned over during operation.

2. The large steel component turnover anti-impact bracket according to claim 1, characterized in that: Pin holes (9) for installing the pulleys (4) are opened at the upper and lower parts of the column (1). The pins connecting the pulleys (4) are inserted into the pin holes (9) and welded firmly to the web of the column (1). Install the steel cable (3) to surround the pulleys (4), and use wire rope clips to fasten the steel cable (3) to form a closed-loop structure to complete the function of supporting the steel component (14).

3. A large steel component turning anti-impact bracket according to claim 1, characterized in that: The lifting lug (11) is welded on the top plate (7), and a lifting hole (12) is drilled on the lifting lug (11). The steel lifting rope of the crane is hung on the lifting hole (12) through a steel shackle, and then the impact-resistant bracket can be lifted and moved to the production operation position.

4. A large steel component turning anti-impact bracket according to claim 1, characterized in that: A thin steel plate (8) is welded and laid on the diagonal brace (5) to prevent the steel cable (3) from being thrown out in case of breakage, playing a safety protection role.

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