Multi-curvature protection device

Abstract

The invention discloses a multi-curvature protection device, and belongs to the technical field of steel billet transportation protection. The round billet transferring device comprises a supporting frame, a plurality of grooves are formed in the supporting frame, and supporting faces for placing round billets to be transferred are arranged in the grooves; the supporting face is composed of at least two arc faces with different curvatures and can be used for stably supporting round billets with different diameters, and the round billets with the different diameters are in face contact with the arc faces with the corresponding curvatures. According to the multi-curvature protection device, the shapes of the supporting surfaces are optimally designed, so that round billets with different diameters are in surface contact with the arc surfaces with the corresponding curvatures, stable limiting of the round billets with the different diameters is guaranteed, and meanwhile the stability of the round billets with the different diameters is improved. And the damage to the protection device caused by stress concentration at the contact position can be reduced. In addition, according to the relation between the force and the counter-acting force, the surface contact also protects the outer surface of the goods to be transported at the same time.

Description

Technical Field

[0001] The invention belongs to the technical field of steel billet transportation protection, and more specifically, relates to a multi-curvature protection device. Background Art

[0002] Billets are one of the products of steel mills and are used as raw materials for further processing into various steel products in rolling mills. Billets from steel mills usually need to be transported to rolling mills by truck or rail for further processing. At present, the high-temperature billet transportation vehicles commonly used by domestic steel mills generally adopt the structure of semi-trailer + thermal insulation layer. Billets are directly stacked on the carriage or thermal insulation layer, which is easy to slide during transportation and affect the driving safety of the vehicle.

[0003] Therefore, in order to prevent the steel billets from falling off the vehicle plate when transporting steel billets by trailer, it is often necessary to add pillars on both sides of the vehicle plate. Then the transported steel billets are placed in the area between the pillars on both sides to prevent the risk of the steel billets sliding off and ensure safety during transportation. However, due to the actual loading process, it is impossible for the steel billets to completely fill the gap between the two pillars, which will cause a certain loading gap between the steel billets. During the driving process of the vehicle, due to uneven road surface or frequent turns, the steel billets, especially round billets, will move sideways and frequently collide with the protective bars, which will accelerate the loss of the pillars and affect their protective performance. Therefore, it is of great significance to design a protective structure specifically for the transportation of round billets to ensure its protective effect.

[0004] After searching, the patent CN207843705U discloses a vehicle-mounted storage device for the safe transportation of round billets. The application includes a plurality of storage rack bodies arranged on a carriage, the storage rack bodies are provided with a plurality of grooves, and the grooves are provided with buffer blocks. In the application, by providing a plurality of grooves, the risk of rolling and shaking of the round billets during transportation can be effectively reduced, and the stability of the round billets during transportation can be ensured. At the same time, by providing the buffer blocks, the probability of scratches on the surface of the round billets is further reduced. In the application, the diameter of the grooves needs to be determined according to the specifications of the round billets to be transported. Once the diameter of the grooves is determined, when transporting round billets of other rules, the round billets of other specifications will be converted into line contact with the grooves, so that the stability of the round billets during transportation cannot be well guaranteed. At the same time, line contact will cause stress concentration in a local area, which is near the contact point, thereby accelerating the damage of the protective side bar and increasing the risk of the round billets slipping. Summary of the invention

[0005] 1. Problems to be solved

[0006] In view of at least some of the problems existing in the above prior art, the present invention proposes a multi-curvature protection device. Its purpose is to solve the problem that the stability of the round billet is poor during the transportation of the round billet by the existing protection device, which is easy to accelerate the impact loss on the column, thereby increasing the risk of the round billet sliding. At the same time, according to the relationship between force and reaction force, the stress concentration at the line contact also increases the risk of the outer surface of the goods to be transported being damaged and scrapped.

[0007] 2. Technical solution

[0008] In order to solve the above problems, the technical solution adopted by the present invention is as follows:

[0009] A multi-curvature protection device of the present invention comprises a support frame, wherein the support frame is provided with a plurality of grooves, wherein the grooves have support surfaces for placing round blanks to be transferred;

[0010] The support surface is composed of at least two arc surfaces with different curvatures, and can be used to stably support round billets with different diameters, and the round billets with different diameters are in surface contact with the arc surfaces with corresponding curvatures.

[0011] Furthermore, among the multiple arc surfaces, there is one arc surface with the largest curvature, and the other arc surfaces are arranged in pairs; wherein the other arc surfaces are distributed in sequence along the two ends of the arc surface with the largest curvature in order of curvature from large to small, and the arc surfaces arranged in pairs share the same center.

[0012] Furthermore, the support surface includes a first curved surface, two second curved surfaces and two third curved surfaces;

[0013] Among them, the first arc surface is located in the middle, the two second arc surfaces are respectively connected to the two ends of the first arc surface, the two third arc surfaces are respectively connected to the other end surfaces of the corresponding second arc surfaces, and the centers of the multiple arc surfaces are located on the same vertical line.

[0014] Furthermore, the supporting surface is formed by the inner surface of the groove.

[0015] Furthermore, a plurality of the support frames are arranged at intervals, and the plurality of support frames are welded and connected via connection components.

[0016] Furthermore, the connection assembly includes a reinforcing bar, both sides of which are welded to the side walls of the corresponding support frame; the reinforcing bar divides the gap between adjacent support frames into two upper and lower spaces;

[0017] An upper reinforcing plate is arranged in the upper space, and a plurality of lower reinforcing plates are arranged in the lower space; the upper reinforcing plate is located at the connection of two adjacent grooves; and through holes are provided on the upper reinforcing plate and / or the lower reinforcing plate.

[0018] Furthermore, a load-bearing plate is provided in the groove, and the load-bearing surface of the load-bearing plate is also composed of arc surfaces with different curvatures; the curvatures of the arc surfaces on the load-bearing surface and the supporting surface are different to accommodate the transportation of more types of goods; at the same time, the outer peripheral wall of the load-bearing plate is completely consistent with the supporting surface to facilitate installation.

[0019] Furthermore, a load-bearing plate is provided in the groove, and the load-bearing surface of the load-bearing plate is a plane; and the load-bearing plates in adjacent grooves are arranged at the same height.

[0020] Furthermore, a load-bearing plate is provided in the groove, and the load-bearing surface of the load-bearing plate forms the supporting surface.

[0021] Furthermore, the support frame is provided with a limiting groove for the limiting block on the load-bearing plate to be inserted into, and the limiting groove is formed by two stop blocks arranged adjacent to each other.

[0022] 3. Beneficial effects

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] (1) The multi-curvature protection device of the present invention can stably limit the position of the round billet through the setting of the support surface, so as to avoid the lateral movement of the round billet due to the existence of the loading gap, thereby reducing the impact loss to the protection device and ensuring the safety of the round billet during transportation. At the same time, the support surface is composed of at least two arc surfaces with different curvatures, so that round billets of different diameters can be in surface contact with the arc surfaces of corresponding curvatures, which can ensure the stable limiting of round billets of different diameters and reduce the damage to the protection device caused by stress concentration at the contact position. In addition, according to the relationship between force and reaction force, it can be seen that the outer surface of the round billet is also protected at the same time, which is more beneficial when transporting special steel round billets with high surface quality requirements.

[0025] (2) The multi-curvature protection device of the present invention is provided with a load-bearing plate in the groove, and the load-bearing surface of the load-bearing plate and the inner surface of the groove are formed with respective supporting surfaces, and the curvatures of the arc surfaces on the two supporting surfaces are different, so that it can be applied to the stable transportation operation of round billets of more specifications. At the same time, the load-bearing plate and the groove are connected by a snap connection, which is convenient for disassembly and assembly.

[0026] (3) The multi-curvature protection device of the present invention designs the load-bearing surface of the load-bearing plate to be a plane, and the load-bearing surfaces of adjacent load-bearing plates are arranged at the same height. The plane can be used for the transfer operation of slabs, square billets, casting residues, rollers and other goods, thereby further improving the application range of the entire protection device.

[0027] (4) The present invention provides a multi-curvature protective device, wherein a plurality of support frames are arranged at intervals, and the plurality of support frames are welded and connected by connecting components, which can further improve the structural strength of the entire protective device. At the same time, through holes are provided on the upper and lower reinforcing plates, which can accelerate the circulation of air and facilitate cooling; on the other hand, the provision of through holes can enhance the overall toughness of the device, and can effectively disperse the impact damage to the protective device caused by the sudden fall of the steel billet during the lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of a multi-curvature protection device of the present invention;

[0029] Figure 2 It is a schematic diagram of the internal structure of a multi-curvature protection device of the present invention;

[0030] Figure 3 is an implementation mode of the support surface in the present invention;

[0031] Figure 4 for Figure 3 Schematic diagram of the cooperation between the supporting surface and round blanks of different diameters;

[0032] Figure 5 It is a schematic diagram of the assembly between the support frame and the load-bearing plate in the present invention;

[0033] Figure 6 It is a structural form of the load-bearing plate in the present invention;

[0034] Figure 7 It is another structural form of the load-bearing plate in the present invention.

[0035] In the figure: 1, support frame; 2, support surface; 21, first arc surface; 22, second arc surface; 23, third arc surface;

[0036] 3. Connecting assembly; 31. Reinforcement strip; 32. Upper reinforcement plate; 33. Lower reinforcement plate; 34. Side reinforcement plate;

[0037] 4. Load-bearing plate; 41. Load-bearing surface; 42. Limit block; 5. Stop block. DETAILED DESCRIPTION

[0038] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings.

[0039] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0040] The present invention is further described below in conjunction with specific embodiments.

[0041] like Figure 1 As shown, a multi-curvature protection device of this embodiment includes a support frame 1, and a plurality of grooves are formed on the support frame 1. The grooves have a support surface 2 for placing the round billet to be transferred. The support surface 2 is composed of at least two arc surfaces with different curvatures, which can be used to stably support round billets with different diameters, and the round billets with different diameters are in surface contact with the arc surfaces with corresponding curvatures.

[0042] In the multi-curvature protection device of the present embodiment, a single round billet is placed therein by setting the support surface 2, which can effectively avoid the lateral movement of the round billet due to the existence of the loading gap, thereby reducing the impact loss on the protection device and ensuring the safety of the round billet during transportation. At the same time, by setting multiple arc surfaces with different curvatures in the support surface 2, the arc surfaces with the same curvature can be contacted with the round billet of the corresponding diameter for surface support, so that one support surface 2 can be used for the stable transportation of round billets of various specifications.

[0043] Specifically, refer to Figure 3 As shown, among the multiple arc surfaces of the support surface 2, there is one arc surface with the largest curvature, and the other arc surfaces are arranged in pairs. The other arc surfaces are distributed in order from large to small along the two ends of the arc surface with the largest curvature, and the arc surfaces arranged in pairs share a common center. It is worth mentioning that the curvature of the arc surface is the reciprocal of the radius of the circle where the arc surface is located. That is, the larger the radius of the circle corresponding to the arc surface, the smaller the curvature of the arc surface. At the same time, the number of grooves and the number of arc surfaces set in each support surface 2 can be determined according to the actual loading requirements and the width of the vehicle.

[0044] In this embodiment, the width of the vehicle is 2.55m, and the conventional transportation sizes are mainly φ600mm round billets, φ700mm round billets, and φ800mm round billets. Three grooves are provided on the support frame 1. The support surface 2 of each groove is composed of three arc surfaces with different curvatures. That is, the support surface 2 includes a first arc surface 21 (a1a2), two second arc surfaces 22 (a1b1, a2b2) and two third arc surfaces 23 (b1c1, b2c2). It is worth mentioning that, for the convenience of expression, each arc surface is marked with two end positions. Reference Figure 3 As shown, a1 and a2 are the two ends of the first curved surface 21; a1 and b1 are the two ends of the second curved surface 22 on the left side; a2 and b2 are the two ends of the second curved surface 22 on the right side; b1 and c1 are the two ends of the third curved surface 23 on the left side; b2 and c2 are the two ends of the third curved surface 23 on the right side. At the same time, a1 and a2 are the connection points between the first curved surface 21 and the second curved surfaces 22 on both sides; b1 and b2 are the connection points between the second curved surface 22 on the same side and the third curved surface 23; c1 and c2 are the connection points between the third curved surface 23 on both sides and the next curved surface, or the connection sections of two adjacent support surfaces 2.

[0045] The curvatures of the first curved surface 21, the second curved surface 22, and the third curved surface 23 decrease in sequence. The first curved surface 21 is located in the middle of the support surface 2; the two second curved surfaces 22 are distributed on both sides of the first curved surface 21 and are respectively connected to the two ends of the first curved surface 21; the two third curved surfaces 23 are respectively located on one side of the corresponding second curved surface 22 and are connected to the other end of the second curved surface 22.

[0046] At this time, the radius of the first curved surface 21 is 300 mm, the radius of the second curved surface 22 is 350 mm, and the radius of the third curved surface 23 is 400 mm. Figure 4 As shown (round billets of φ600mm, φ700mm, and φ800mm are loaded from left to right in sequence), when transporting a round billet with a diameter of 600mm, the bottom of the φ600mm round billet just fits with the first arc surface 21, forming a good surface support effect. When transporting a φ700mm round billet, the two sides of the middle and lower part of the φ700mm round billet fit with the corresponding second arc surface 22, respectively, and a good surface contact can also be formed. Similarly, when transporting a φ800mm round billet, the two sides of the middle and lower part of the φ800mm round billet fit with the corresponding third arc surface 23, respectively, and a good surface contact can also be formed. At the same time, in order to ensure that the center of gravity of different round billets can be located at the center of the support surface 2 as much as possible, so as to further ensure the safety of the vehicle during transportation. In this embodiment, the centers of multiple arc surfaces are set on the same vertical line.

[0047] In this embodiment of the multi-curvature protection device, the support surface 2 can be directly formed by the inner surface of the groove. Of course, it can also be formed by an additional load-bearing plate 4. Specifically, refer to Figure 5 , Figure 6 As shown, a bearing plate 4 is provided in the groove of the support frame 1, and the bearing plate 4 has a concave bearing surface 41, and the bearing surface 41 is composed of at least two arc surfaces with different curvatures to accommodate the transportation of more types of goods. That is, the bearing surface 41 forms the above-mentioned support surface 2. The specific distribution of the arc surfaces in the support surface 2 is the same as above, and will not be repeated again. At the same time, the outer peripheral wall of the bearing plate (4) and the inner peripheral wall of the support surface (2) are matched with each other to ensure the fit between the two after assembly.

[0048] In order to facilitate the assembly operation between the load-bearing plate 4 and the support frame 1, the two can be connected in a clamping form. For example, a plurality of limit blocks 42 are provided on both side surfaces of the load-bearing plate 4. A plurality of groups of stop blocks 5 are provided on the side wall of the support frame 1, and a limit space for the limit block 42 to be clamped is formed between the two stop blocks 5 of each group of stop blocks 5. At the same time, in order to further ensure the stability of the stop block 5 in the limit space. Pin holes are provided at corresponding positions on the stop block 5 and the limit block 42. When the stop block 5 is clamped into the limit space, the stop block 5 is locked by a pin shaft or a bolt.

[0049] In this embodiment, in order to further improve the scope of application of the protective device, a support surface 2 can be set on the inner surface of the groove and the bearing surface 41 of the bearing plate 4 at the same time, and the curvatures of the arc surfaces on the two support surfaces 2 are different. For example, a support surface 2 that can stably support three round billets with different diameters (φ700mm round billets, φ800mm round billets, and φ900mm round billets) is set on the inner surface of the groove; and a support surface 2 that can stably support another three round billets with different diameters (φ380mm round billets, φ450mm round billets, and φ600mm round billets) is set on the bearing surface 41 of the bearing plate 4. In this way, by adding or removing the bearing plate 4, a single groove can realize the transportation of 6 round billets with different diameters, thereby greatly improving the scope of application of the protective device. It is worth mentioning that the above-mentioned specific specifications and quantities are only an example and do not have a limiting effect.

[0050] As another embodiment of the load-bearing plate 4, Figure 7 As shown, the bearing surface 41 of the bearing plate 4 is a plane, and the bearing plates 4 in adjacent grooves are arranged at the same height. This design can be applied to the transfer operation of slabs, square billets, casting residues and other goods. That is, when a round billet is needed, the bearing plate 4 can be removed, and the supporting surface 2 formed on the inner surface of the groove can be used to stably support the round billet. When a square billet is needed, the bearing plate 4 can be installed, and the plane on the bearing surface 41 can be used to stably support the billet.

[0051] In order to further enhance the overall structural strength of a multi-curvature protection device of this embodiment, a plurality of support frames 1 are arranged at intervals, and the plurality of support frames 1 are welded and connected via connection components 3 .

[0052] Specifically, refer to Figure 1 , Figure 2 As shown, the connection assembly 3 includes a reinforcing bar 31, an upper reinforcing plate 32, a lower reinforcing plate 33 and a side reinforcing plate 34. The reinforcing bar 31 can be formed by bending a steel plate as a whole. The reinforcing bar 31 is located in the gap formed between two adjacent support frames 1, and both sides of the reinforcing bar 31 are welded to the side walls of the corresponding support frames 1. At the same time, the reinforcing bar 31 divides the gap between the adjacent support frames 1 into two upper and lower spaces.

[0053] The upper reinforcing plate 32 is arranged in the upper space, and its sides are respectively welded to the support frames 1 on both sides, and the bottom is welded to the upper surface of the reinforcing strip 31. Preferably, the upper reinforcing plate 32 is located at the connection of two adjacent grooves. The lower reinforcing plate 33 is arranged in the lower space, and the two sides of the lower reinforcing plate 33 are respectively welded to the corresponding support frames 1, and the top is welded to the lower surface of the reinforcing strip 31. The side reinforcing plates 34 are welded to the two ends of the support frame 1.

[0054] In addition, through holes are provided on the upper reinforcing plate 32 and / or the lower reinforcing plate 33. The provision of the through holes can accelerate the circulation of air, which is beneficial to reduce the heat radiation of the high-temperature steel billet to the device; on the other hand, it can effectively disperse the impact damage to the protective device caused by the sudden drop of the steel billet during the lifting process.

[0055] Specifically in this embodiment, a multi-curvature protection device is formed by welding two support frames 1. Of course, according to actual protection requirements, the protection device can also be composed of more support frames 1, for example, 3, 4, etc. Of course, if the structural strength of a single support frame 1 can meet the requirements, there is no need to weld multiple support frames 1.

[0056] In this embodiment, a multi-curvature protection device optimizes the specific shape of the support surface 2 so that round billets of different diameters are in surface contact with the support surface 2. While ensuring stable positioning of round billets of different diameters, it is also beneficial to reduce the damage to the protection device caused by stress concentration at the contact position. Of course, according to the relationship between force and reaction force, the outer surface of the round billet is also protected at the same time, which is more beneficial when transporting special steel round billets with high surface quality requirements. At the same time, through the setting of the load-bearing plate 4, it can be applied to the stable transportation operation of billets of more specifications and other goods.

[0057] The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention.

Claims

1. A multi-curvature protection device, comprising a support frame (1), characterized in that: The support frame (1) is provided with a plurality of grooves, and the grooves have support surfaces (2) for placing the round blanks to be transferred; The support surface (2) is composed of at least two circular arc surfaces with different curvatures, and can be used to stably support round billets with different diameters, and the round billets with different diameters are in surface contact with the circular arc surfaces with corresponding curvatures.

2. A multi-curvature protection device according to claim 1, characterized in that: Among the multiple arc surfaces, there is one arc surface with the largest curvature, and the other arc surfaces are arranged in pairs; wherein the other arc surfaces are distributed in order from large to small curvature along the two ends of the arc surface with the largest curvature, and the arc surfaces arranged in pairs share a common center.

3. A multi-curvature protection device according to claim 2, characterized in that: The supporting surface (2) comprises a first curved surface (21), two second curved surfaces (22) and two third curved surfaces (23); The first arc surface (21) is located in the middle, the two second arc surfaces (22) are respectively connected to the two ends of the first arc surface (21), the two third arc surfaces (23) are respectively connected to the other end surfaces of the corresponding second arc surfaces (22), and the centers of the multiple arc surfaces are located on the same vertical line.

4. A multi-curvature protection device according to any one of claims 1 to 3, characterized in that: The supporting surface (2) is formed by the inner surface of the groove.

5. A multi-curvature protection device according to claim 4, characterized in that: A plurality of the support frames (1) are arranged at intervals, and the plurality of support frames (1) are welded and connected via a connection assembly (3).

6. A multi-curvature protection device according to claim 5, characterized in that: The connecting assembly (3) comprises a reinforcing strip (31), both sides of which are welded to the side walls of the corresponding support frame (1); the reinforcing strip (31) divides the gap between adjacent support frames (1) into two upper and lower spaces; An upper reinforcing plate (32) is provided in the upper space, and a plurality of lower reinforcing plates (33) are provided in the lower space; the upper reinforcing plate (32) is located at the connection between two adjacent grooves; and through holes are provided on the upper reinforcing plate (32) and / or the lower reinforcing plate (33).

7. A multi-curvature protection device according to claim 4, characterized in that: A load-bearing plate (4) is arranged in the groove, and the load-bearing surface (41) of the load-bearing plate (4) is also composed of arc surfaces with different curvatures; the curvatures of the load-bearing surface (41) and the arc surfaces on the supporting surface (2) are different.

8. The multi-curvature protection device according to claim 4, characterized in that: A load-bearing plate (4) is arranged in the groove, and a load-bearing surface (41) of the load-bearing plate (4) is a plane; and the load-bearing plates (4) in adjacent grooves are arranged at the same height.

9. A multi-curvature protection device according to any one of claims 1 to 3, characterized in that: A load-bearing plate (4) is arranged in the groove, and a load-bearing surface (41) of the load-bearing plate (4) forms the supporting surface (2).

10. A multi-curvature protection device according to claim 9, characterized in that: The support frame (1) is provided with a limiting groove for the limiting block (42) on the load-bearing plate (4) to be inserted into, and the limiting groove is formed by two stop blocks (5) arranged adjacent to each other.

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