Steel billet transfer protection goods shelf and frame assembly

Abstract

The invention discloses a steel billet transfer protection goods shelf and a frame assembly, and belongs to the technical field of steel billet transfer. The heat insulation structure comprises a heat insulation layer, and a plurality of high standing column assemblies are arranged on the heat insulation layer in the length direction of the heat insulation layer; the high standing column assembly comprises a plurality of limiting supporting frames distributed at intervals, and the adjacent limiting supporting frames are connected through connecting pieces in a welded mode. The limiting support frame is integrally formed by cutting a steel plate, and a limiting space is formed on the inner surface of the limiting support frame; the limiting spaces of the multiple limiting supporting frames jointly form a containing space for containing steel billets to be conveyed. Wherein the placing space can be a U-shaped rectangular space, a U-shaped arc-shaped space or a wave-shaped space formed by a plurality of grooves; and each groove of the wave-shaped space consists of at least two arc surfaces with different curvatures. According to the steel billet transfer protection goods shelf, light weight and high strength can be both considered; and the steel billet transfer trolley is suitable for transferring steel billets of different specifications.

Description

Technical Field

[0001] The present invention belongs to the technical field of steel billet transfer, and more specifically, relates to a steel billet transfer protection rack and a frame assembly. Background Art

[0002] At present, domestic steel mills generally use semi-trailers to undertake the transportation tasks of round billets, square billets, casting residues, slabs, etc., but the vehicles purchased directly usually only have a traction head and a "naked" trailer, which cannot meet the professional logistics needs of the steel industry base. Therefore, it is usually necessary to carry out secondary development of the purchased vehicles to meet the transportation tasks of billets of different specifications and temperatures. Among them, the basic requirements for vehicle secondary development are to install columns to prevent the billets from slipping during transportation and to use insulation layers to prevent the vehicle body from being deformed and damaged by high-temperature radiation.

[0003] Conventional protective devices generally adopt a crossarm plus column structure, that is, square billets are used as crossarms and columns, the columns are welded to the two ends of the crossarms, and the space between the crossarms and the columns is used to limit the billets to prevent them from falling. This structure has several disadvantages. First, the welding area between the crossarms and the columns is limited, which makes the columns prone to open welding and fracture after being impacted by the billets, increasing the risk of transportation; second, the overall dead weight is large, which reduces the actual carrying capacity of the vehicle, thereby increasing the transportation cost. Therefore, it is of great practical significance to design a shelf device that takes into account both connection strength and lightness, and can be flexibly adapted to the transportation needs of billets of different specifications.

[0004] After searching, the patent CN209441271U discloses a heavy-duty semi-trailer protective device for transporting high-temperature slabs; the patent CN204453281U discloses a rotating column transport rack. In both patents, rotatable columns are used to facilitate the loading and unloading of goods; at the same time, the deadweight of the shelf device can be effectively controlled. However, the connection strength of the columns needs to be further strengthened. The patent CN112319651A discloses a large billet hot delivery vehicle device. The application adopts a bottom plate plus column structure to prevent the billet from slipping during transportation, and the connection strength of the vertical plate is ensured by providing a reinforcing plate on the outer side of the vertical plate. However, the deadweight of the entire shelf device is increased, which greatly reduces the actual load-bearing capacity of the vehicle. The patent CN101643091A discloses a high-temperature billet transport semi-trailer. This application case, by providing a plurality of H-shaped pad beams on the load-bearing platform, and the plurality of H-shaped pad beams are arranged into a plurality of rows and rail steel for carrying high-temperature steel billets is fixed above the plurality of H-shaped pad beams. The high-temperature steel billets to be transported are placed on the rail steel, thereby avoiding direct contact with the upper bottom plate, reducing the contact area between the high-temperature steel billets and the frame, and reducing heat transfer.

[0005] In summary, the above applications all involve technical improvements to transport rack protective devices, and each has its own advantages, but none of them can achieve a good balance between connection strength and lightweight. Summary of the invention

[0006] 1. Problems to be solved

[0007] In view of at least some of the problems existing in the above prior art, the present invention proposes a steel billet transfer protection rack, the purpose of which is to solve the problem that the existing steel billet protection devices often cannot take into account both light weight and high strength.

[0008] 2. Technical solution

[0009] In order to solve the above problems, the technical solution adopted by the present invention is as follows:

[0010] A steel billet transfer protection shelf of the present invention comprises a heat insulation layer, wherein the heat insulation layer is provided with a plurality of high standing column assemblies along the length direction thereof;

[0011] The high standing column assembly comprises a plurality of spaced apart limiting support frames, and adjacent limiting support frames are welded and connected via connecting pieces;

[0012] The limiting support frame is formed by integrally cutting a steel plate, and a limiting space is formed on its inner surface; the limiting spaces of a plurality of limiting support frames together constitute a placement space for placing the steel billets to be transported.

[0013] Furthermore, the placement space is a U-shaped rectangular space, a U-shaped arc space, or a wavy space composed of a plurality of grooves; wherein each groove of the wavy space is composed of at least two arc surfaces with different curvatures.

[0014] Furthermore, a load-bearing plate welded to the limiting support frame is provided in the rectangular space and the arc-shaped space, and the load-bearing plate has a load-bearing surface consistent with the corresponding space.

[0015] Furthermore, a load-bearing plate clamped with the limiting support frame is provided in the groove of the wavy space, and the load-bearing surface of the load-bearing plate is composed of at least two arc surfaces with different curvatures, or a plane; wherein the curvature of the load-bearing surface is different from that of the arc surface in the corresponding groove.

[0016] Furthermore, the connecting piece is an integral component and / or is formed by a plurality of welding blocks distributed at intervals.

[0017] Furthermore, an end plate is welded to the end of the high station column assembly, the bottom of the end plate extends out of the bottom of the limit support frame and is equipped with a limit block; the outer end surface of the limit support frame has a first protrusion; and a welding groove for the first protrusion to pass through is provided on the end plate.

[0018] Furthermore, a bottom plate is provided in the inner concave notch on the lower surface of the position-limiting support frame, and a welding groove is provided on the bottom plate for the second protrusion on the horizontal section of the concave notch to pass through.

[0019] Furthermore, it also includes a low column assembly, which includes a cross arm and columns arranged at both ends of the cross arm; wherein the cross arm is an H-shaped steel, and the upper flange of the H-shaped steel and the inner side surface of the column together enclose the limited space; and the height of the limited space of the low column assembly is lower than that of the high column assembly, and the clearance length of the limited space of the low column assembly is not less than that of the high column assembly.

[0020] Furthermore, the insulation layer includes a frame and insulation material filled in the frame; wherein the frame is surrounded by H-shaped steel alternating horizontally and vertically, and the upper and lower surfaces of the frame are provided with sealing plates, and the four sides of the sealing plates extend to the belly space of the corresponding H-shaped steel respectively.

[0021] Furthermore, the high station column assembly and the low station column assembly are also provided with welding holes for H-shaped steel to pass through; the upper surface of the thermal insulation layer is wavy, cross-shaped or flat.

[0022] The present invention further provides a vehicle frame assembly, comprising a vehicle frame body, on which the above-mentioned protective shelf is provided.

[0023] 3. Beneficial effects

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) The high column assembly of the steel billet transfer protection rack of the present invention is composed of spaced limit support frames welded by connectors. Compared with the traditional square billet rack, it can effectively reduce the deadweight of the entire protection rack, increase the effective load capacity of the vehicle, and thus reduce the transportation cost. At the same time, compared with the traditional welding connection between the cross arm and the column, the limit support frame of the present invention is formed by integral cutting of the steel plate, which can effectively ensure the structural strength of the limit support frame to ensure the safety of the steel billet during transportation.

[0026] (2) A steel billet transfer protection rack of the present invention optimizes the specific structure of the placement space. The rectangular placement space has good universal performance and can be applied to the transportation of steel billets of various shapes; while the U-shaped and wavy placement spaces are specifically used for the transportation of round billets. Among them, the U-shaped placement space can reduce the impact force of the lateral movement of the round billet on the side of the limit support frame; the wavy placement space can avoid the lateral movement of the round billet due to the existence of the loading gap, thereby reducing the impact loss to the limit support frame; at the same time, each groove of the wavy placement space 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, so as to reduce the damage to the limit support frame and the goods caused by stress concentration at the contact position.

[0027] (3) The steel billet transfer protection rack of the present invention can effectively increase the contact area between the steel billet and the load-bearing plate by setting the load-bearing plate, so that the impact force can be more evenly dispersed to each limit support frame, ensuring that multiple limit support frames can bear the force together, thereby further improving the service life.

[0028] (4) In the steel billet transfer protection rack of the present invention, the end plate and the limit support frame, as well as the bottom plate and the limit support frame, are welded together through protrusions and welding grooves, which can effectively increase the welding area and ensure the welding strength.

[0029] (5) The frame part of the heat insulation layer of the steel billet transfer protection rack of the present invention is welded by H-shaped steel. Compared with the traditional square billet, H-shaped steel is not only lighter in weight, but also has good mechanical properties, which is conducive to resisting the impact of the steel billet. At the same time, the upper surface of the heat insulation layer is designed to be wavy or cross-shaped, which is conducive to ventilation and heat dissipation on the one hand; on the other hand, compared with the flat structure, under the condition of the same steel plate thickness, this non-flat bending structure has stronger resistance to impact deformation, and has a larger space for thermal expansion and contraction when subjected to high-temperature radiation, so its resistance to thermal deformation is also stronger.

[0030] (6) The present invention provides a steel billet transfer protection shelf, in which the low column assembly is directly composed of H-shaped steel and columns at both ends. It has a lighter deadweight, but limited strength, and is suitable for transporting some small-sized steel billets. At the same time, through the mutual cooperation of the high and low column assemblies; wherein, the low column assembly is mainly used to assist the high column assembly in bearing the vertical force of the steel billet, so as to optimize the overall force condition of the vehicle; and the horizontal force of the steel billet is mainly borne by the high column assembly; this not only ensures the safety of protection, but also reduces the number of high column assemblies used, so as to further reduce the deadweight of the shelf. In addition, by lowering the height of the limiting space of the column assembly, on the one hand, the impact loss between the steel billet and the column can be reduced, and on the other hand, interference with the lifting equipment can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a structural schematic diagram of a steel billet transport protection shelf of the present invention;

[0032] Figure 2 A schematic diagram of a structure of a protective shelf formed solely by a high standing column assembly in the present invention;

[0033] Figure 3 It is another structural schematic diagram of a protective shelf formed solely by a high standing column assembly in the present invention;

[0034] Figure 4 A schematic diagram of a structure of a protective shelf formed solely by a low standing column assembly in the present invention;

[0035] Figure 5 It is an implementation method of the high standing column assembly in the present invention;

[0036] Figure 6 for Figure 5 Schematic diagram of the structural explosion of the middle and high standing column assembly;

[0037] Figure 7 It is a structural schematic diagram of a high standing column assembly with a U-shaped placement space in the present invention;

[0038] Figure 8 for Figure 7 Front view of the middle and high standing column assembly;

[0039] Fig. 9 for Figure 7 Schematic diagram of the structural explosion of the middle and high standing column assembly;

[0040] Fig.10 It is a structural schematic diagram of a high standing column assembly with a rectangular placement space in the present invention;

[0041] Fig.11 It is a structural schematic diagram of a high standing column assembly with a wavy placement space in the present invention;

[0042] Fig.12 for Fig.11 Front view of the middle and high standing column assembly;

[0043] Fig.13 It is a structural form of the load-bearing plate matched with the wave-shaped placement space in the present invention;

[0044] Fig.14 It is another structural form of the load-bearing plate matched with the wave-shaped placement space in the present invention;

[0045] Fig.15 It is a structural schematic diagram of the low standing column assembly of the present invention;

[0046] Fig.16It is a schematic diagram of the structure of the heat insulation layer in the present invention;

[0047] Fig.17 for Fig.16 A schematic diagram of the enlarged structure at point A in the middle.

[0048] In the figure: 1, insulation layer; 11, frame; 111, longitudinal beam; 112, cross beam; 12, cover plate;

[0049] 2. High standing column assembly; 21. Limiting support frame; 211. First protruding portion; 212. Second protruding portion; 22. Connecting piece; 23. Load-bearing plate; 231. Load-bearing surface; 232. Block; 24. End plate; 25. Limiting block; 26. Bottom plate; 27. Stop block;

[0050] 3. Low standing column assembly; 31. Cross arm; 32. Vertical column; 33. Reinforcement plate; 34. Spacer block. DETAILED DESCRIPTION

[0051] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings.

[0052] 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.

[0053] like Figure 1-Figure 4 As shown, a steel billet transfer protection rack of the present invention comprises a heat insulation layer 1 and a plurality of column assemblies arranged along the length direction of the heat insulation layer 1, wherein the column assemblies are composed of a high column assembly 2 and a low column assembly 3. The protection rack of the present invention can be composed of the high column assembly 2 alone, the low column assembly 3 alone, or a mixed combination of the high column assembly 2 and the low column assembly 3.

[0054] The present invention is further described below in conjunction with specific embodiments.

[0055] In the present embodiment, a steel billet transfer protection shelf has a high column assembly 2, which includes a plurality of spaced-apart limit support frames 21, and adjacent limit support frames 21 are welded and connected by connectors 22. The limit support frame 21 is formed by integral cutting of a steel plate, and a limit space is formed on its inner surface; the limit spaces of a plurality of limit support frames 21 together form a placement space for placing the steel billets to be transported. The connector 22 can be an integral component, such as an H-shaped steel, a steel plate, etc.; it can also be a spaced-apart split welded block; or it can be composed of an integral component and a split welded block.

[0056] The above-mentioned placement space can be a U-shaped rectangular space, a U-shaped arc space, or a wavy space composed of multiple grooves. The rectangular placement space has good universal performance and can be used for the transportation of billets of various shapes. The U-shaped and wavy placement spaces are specifically used for the transportation of round billets. Among them, the U-shaped placement space can reduce the impact force of the lateral movement of the round billet on the inner side surfaces at both ends of the limiting support frame 21; the wavy placement space can avoid the lateral movement of the round billet due to the existence of the loading gap, thereby reducing the impact loss to the limiting support frame 21. At the same time, each groove of the wavy placement space 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, so as to reduce the damage to the limiting support frame 21 caused by stress concentration at the contact position.

[0057] In this embodiment, the low standing column assembly 3 is composed of a cross arm 31 and columns 32 welded at both ends of the cross arm 31. The upper surface of the cross arm 31 and the inner side surface of the column 32 together form a limiting space, which can be a rectangular space or a U-shaped arc space.

[0058] Specifically, refer to Figure 5 , Figure 6 As shown, as an implementation of the high standing column assembly 2, this structural form is called an H-beam standing column assembly, that is, the connecting piece 22 between adjacent limiting support frames 21 is made of H-beam. The upper and lower flanges of the H-beam are welded to the sides of the corresponding limiting support frames 21, and the welding can be carried out along the length direction of the upper and lower flanges, thereby greatly increasing the welding area, which is conducive to ensuring the connection strength between the two. At the same time, the upper flange of the H-beam should be as flush as possible with the bottom of the limiting space, so that the H-beam and the limiting support frame 21 can jointly bear the gravity of the steel billet. However, in actual operation, in order to ensure the welding strength between the H-beam and the limiting support frame 21, the upper flange of the H-beam needs to be slightly lower than the lower part of the limiting space, preferably 3-5mm. Of course, the lower flange of the H-beam needs to be higher than the bottom of the limiting support frame 21, which is convenient for welding on the one hand and conducive to ensuring welding strength on the other hand.

[0059] The H-shaped steel column assembly of this embodiment is made of H-shaped steel instead of traditional square billets, which can effectively reduce the deadweight of the entire column assembly, increase the actual load capacity of the vehicle, and help save transportation costs. At the same time, an integrated cutting limit support frame 21 is used to ensure the strength of the limit support frame 21 itself. At the same time, the welding area between the limit support frame 21 and the H-shaped steel can be guaranteed, which can effectively improve the connection strength between the two and help extend the service life.

[0060] In the H-beam standing column assembly in this embodiment, the limiting space of the limiting support frame 21 can be a U-shaped space or a rectangular space. The following takes the arc space in which the limiting space is a U-shaped as an example to further describe in detail the structure of the H-beam standing column assembly in this embodiment. For the convenience of description, the arc space of the limiting support frame 21 can be divided into three parts, namely a horizontal section and a vertical section located on both sides of the horizontal section. The arc space is mainly reflected in the fact that the inner side surface of the vertical section is arc-shaped. Compared with the traditional plane support, the vertical section with an arc-shaped inner side surface can make use of its small head and large root characteristics when the vertical section is subjected to the lever effect of the horizontal component force, which is equivalent to having a reinforcing rib, and the anti-torque effect is significantly increased. At the same time, comprehensive force analysis shows that the lever effect of the horizontal component force on the vertical section and the resulting torque effect of the arc surface in actual operation are greatly attenuated. Therefore, the design of the arc space can effectively improve the safety performance of round billet transportation.

[0061] Since the position-limiting support frame 21 is cut from a steel plate, and the thickness of the steel plate is generally thin, the actual contact area between the vertical section and the steel billet is small, and it is difficult to ensure that the vertical sections of multiple position-limiting support frames 21 are subjected to force at the same time, so that it is easy for a vertical section of a position-limiting support frame 21 to be damaged due to the concentrated impact force in the horizontal direction. For this reason, in this embodiment, a load-bearing plate 23 is provided on the inner side surface of multiple vertical sections on the same side, and the inner side surfaces of multiple vertical sections on the same side can be connected as a whole to increase the contact area with the steel billet, so that the impact force can be more evenly dispersed to each vertical section, further ensuring its safety in use.

[0062] Preferably, the width h2 of the load-bearing plate 23 is greater than the total width h1 of the plurality of limit support frames 21 connected to the H-shaped steel, so that both ends of the load-bearing plate 23 can respectively exceed the outermost limit support frame 21. The widened design of the load-bearing plate 23 can, on the one hand, further increase the contact area with the steel billet; on the other hand, the end of the load-bearing plate 23 can extend a distance from the outer limit support frame 21 to facilitate welding and ensure welding strength.

[0063] Furthermore, in this embodiment, an end plate 24 is connected to the outer side of the limiting support frame 21, and the bottom of the end plate 24 extends out of the bottom of the limiting support frame 21. With this design, the extension sections of the end plates 24 on both sides can be clamped on the thermal insulation layer 1, making the assembly operation more convenient and quick. At the same time, a welding opening is opened on the end plate 24, and the end of the H-shaped steel extends out of the welding opening or is located in the welding opening. Through the design of the welding opening, the structural strength of the entire station column assembly can be further ensured.

[0064] Specifically in this embodiment, the H-shaped steel column assembly is composed of three limit support frames 21 and two H-shaped steels. The load-bearing plate 23 and the end plate 24 can also be made of steel plates. The load-bearing plate 23 adopts a split design, that is, a load-bearing plate 23 is welded to the inner side of multiple vertical sections on the same side. Of course, the load-bearing plate 23 can also adopt an integrated design, that is, the load-bearing plate 23 covers the entire placement space.

[0065] In the steel billet transfer protection rack of this embodiment, the H-shaped steel column assembly is composed of steel plates and H-shaped steels as a whole, which can greatly reduce its deadweight compared with the traditional square billet structure. At the same time, the limit support frame 21 is cut and formed as one piece, and the welding area between the limit support frame 21 and the H-shaped steel can be effectively guaranteed, thereby ensuring the connection strength of the limit support frame 21, which can greatly reduce the phenomenon of the steel billet sliding due to damage to the limit support frame 21. In addition, by designing the inner side surface of the vertical section of the limit support frame 21 as an arc column, the damage caused by the impact of the round billet can be further reduced.

[0066] like Figure 7-Figure 10 As shown, as another embodiment of the high standing column assembly 2, this structural form is called a reinforced standing column assembly, and the connecting piece 22 between adjacent limiting support frames 21 of the reinforced standing column assembly is a welding block distributed at intervals. Preferably, the inner end surface of the welding block is aligned with the inner surface of the limiting support frame 21, so that the end surface of the welding block facing the limiting space and the inner surface of the limiting support frame 21 form a plane to jointly bear the load.

[0067] The reinforced standing column assembly in this embodiment also includes end plates 24, limit blocks 25 and bottom plates 26. The end plates 24 are located at both ends of the limit support frame 21, the limit blocks 25 are arranged on the inner side of the end plates 24 near the bottom, and the bottom plates 26 are located at the bottom of the limit support frame 21.

[0068] Specifically, a notch is cut on the outer end of the limiting support frame 21 to form a first protrusion 211. At the same time, a number of welding grooves that are compatible with the first protrusion 211 are opened on the end plate 24, and the bottom of the end plate 24 needs to extend out of the bottom of the limiting support frame 21 for assembling the limiting block 25. During assembly, the welding groove on the end plate 24 is first passed through the corresponding first protrusion 211, so that the entire end plate 24 is hung on the upper end surface of the first protrusion 211; then, the contact surface between the end plate 24 and the limiting support frame 21 is welded, including the contact surface around and the contact surface at the welding groove, to ensure the welding strength between the end plate 24 and the limiting support frame 21. Finally, the entire station column assembly can be clamped on the insulation layer or the car body through the extension sections of the end plates 24 on both sides, and locked by adding the limiting block 25. Among them, the limiting block 25 and the end plate 24 can be connected by bolts. At the same time, it should be noted that the first protrusion 211 can either extend out of the corresponding welding groove or be located in the corresponding welding groove. No matter which matching form is adopted, the effect of increasing the welding area can be achieved.

[0069] In order to ensure the connection strength between the bottom plate 26 and the limiting support frame 21, an indentation may be cut at the bottom of the limiting support frame 21, and the top of the indentation forms the lower surface of the limiting support frame 21. At the same time, a plurality of second protrusions 212 are cut along the length direction of the lower surface of the limiting support frame 21 and are distributed at intervals, and a welding groove is provided on the bottom plate 26 for the second protrusion 212 to pass through or accommodate the second protrusion 212. During assembly, the bottom plate 26 is placed in the space surrounded by the indentations at the bottom of the plurality of limiting support frames 21, and the welding grooves on the bottom plate 26 are ensured to correspond one-to-one with the second protrusions 212, and then welding is performed.

[0070] In addition, through holes, preferably circular holes, can be provided on the welding block, the end plate 24 and the bottom plate 26. The provision of such through holes has the following advantages: first, it is conducive to ventilation and heat dissipation between the interior of the reinforced column assembly and the outside world at all times, so as to avoid air expansion in the closed space during the transportation of high-temperature steel billets, which affects the service life of the column assembly; second, the internal state can be checked through these through holes, and problems can be dealt with in a timely manner, which is convenient for eliminating hidden dangers during use; third, it is conducive to enhancing the overall toughness of the column assembly; fourth, it is conducive to reducing the dead weight and saving costs.

[0071] The placement space for the reinforced standing column assembly can also be designed as a U-shaped rectangular space and a U-shaped arc space. It should be noted that when the placement space is a U-shaped rectangular space, L-shaped welding blocks can be added on both sides of the corners of the limiting support frame 21 to ensure the strength of the corners of the limiting support frame 21 and improve the protection effect. At the same time, the welding strength between the welding block and the limiting support frame 21 can be improved by opening a bevel and a welding hole on the welding block to further ensure the impact resistance at the corners of the rectangular space.

[0072] Similarly, for the enhanced column assembly in this embodiment, a load-bearing plate 23 can also be added in the placement space. The load-bearing plate 23 can be integrally bent from a steel plate to form a U-shaped or ∪-shaped load-bearing surface 231. Of course, the outer peripheral wall of the load-bearing plate 23 needs to match the placement space to ensure that the two can fit together, facilitating the welding operation between the load-bearing plate 23, the limit support frame 21, and the welding block.

[0073] Refer to Fig.11 、 Fig.12 As shown in , another implementation of the high column assembly 2, this structural form is called a wavy column assembly. The limit space of the limit support frame 21 of the wavy column assembly is a wavy space composed of multiple grooves, and each groove is a multi-curvature space composed of at least two different curvature arc surfaces. Further, among the multiple arc surfaces in the multi-curvature space, there is one arc surface with the largest curvature, and the other arc surfaces with different curvatures are arranged in pairs. The other arc surfaces with different curvatures are distributed in sequence along both ends of the arc surface with the largest curvature in the order of decreasing curvature, and the paired arc surfaces share the same center of the circle. At the same time, the centers of the multiple arc surfaces are located on the same vertical line.

[0074] It is worth mentioning that the curvature of an 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 opened and the number of arc surfaces arranged in each groove can be determined according to the actual loading requirements and the vehicle width. The biggest advantage of the wavy column assembly in this embodiment is that it 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.

[0075] Next, taking a wavy space composed of three grooves and each multi-curvature space having three arc surfaces with different curvatures as an example, the overall structure and usage method of the wavy column assembly in this embodiment will be described in detail. For the convenience of description, each arc surface is marked with two end positions. Specifically, refer to Fig.12As shown, the multi-curvature space in the groove is formed by five arc surfaces, namely, arc surfaces a1a2, a1b1, a2b2, b1c1, and b2c2. Arc surface a1a2 is located in the middle of the multi-curvature space, and the curvature of the arc surface a1a2 is the largest. Arc surface a1b1 and arc surface a2b2 are located on both sides of the arc surface a1a2, and their connection points are a1 and a2 respectively. The arc surface a1b1 and the arc surface a2b2 are two arcs on the same circle, and the curvatures of the two are the same, and both are smaller than the arc surface a1a2. The arc surface b1c1 and the arc surface b2c2 are two arcs on the same circle, and the curvatures of the two are the same, and both are smaller than the arc surface a1b1. The arc surface b1c1 is located at one end of the arc surface a1b1 away from the arc surface a1a2, and the connection between the two is b1; the arc surface b2c2 is located at one end of the arc surface a2b2 away from the arc surface a1a2, and the connection between the two is b2.

[0076] Specifically in this embodiment, the radius of the circle where the arc surface a1a2 is located is 300mm, the radius of the arc surface a1b1 and the arc surface a2b2 is 350mm, and the radius of the arc surface b1c1 and the arc surface b2c2 is 400mm. When transporting a round billet with a diameter of 600mm, the bottom of the φ600mm round billet just fits with the arc surface a1a2 to form 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 arc surface a1b1 and the arc surface a2b2 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 arc surface b1c1 and the arc surface b2c2 respectively, and a good surface contact can also be formed.

[0077] In addition, in the wave-shaped standing column assembly of this embodiment, the connecting piece 22 between adjacent limiting support frames 21 is composed of a welding strip and a plurality of split welding blocks. Fig.11 As shown, the welding strip is formed by bending a steel plate and is formed into a U shape as a whole. The U-shaped welding strip is located in the gap formed between two adjacent limiting support frames 21 , and both sides of the welding strip are welded to the side walls of the corresponding limiting support frames 21 .

[0078] At the same time, the welding strip divides the gap between adjacent limit support frames 21 into two spaces, upper and lower, and a number of welding blocks are provided in the upper and lower spaces. Among them, the sides of the welding blocks in the upper space are respectively welded to the limit support frames 21 on both sides, and the bottom is welded to the upper surface of the welding strip. Preferably, the upper welding block is located at the connection of two adjacent grooves. The two sides of the welding block in the lower space are respectively welded to the corresponding limit support frames 21, and the top is welded to the lower surface of the welding strip. Preferably, through holes can be opened on the welding strips and welding blocks, which can accelerate the circulation of air on the one hand, which is conducive to reducing the heat radiation of the high-temperature steel billet to the device; on the other hand, it can effectively disperse the impact damage caused by the sudden fall of the steel billet during the lifting process to the standing column assembly. Of course, the wavy standing column assembly of this embodiment can be provided with an end plate 24 on the outer side of the limit support frame 21, and a bottom plate 26 can be provided at the bottom of the limit support frame 21. At the same time, a limit block 25 can be provided at the bottom of the end plate 24. The specific configuration of the end plate 24, the limit block 25 and the bottom plate 26 can be referred to the reinforced standing column assembly, which will not be described in detail here.

[0079] The wavy standing column assembly in this embodiment can stably limit the round billet through the setting of the wavy space, so as to avoid the phenomenon of the round billet shifting horizontally due to the existence of the loading gap, thereby reducing the impact loss on the inner side of the limiting support frame 21 and ensuring the safety of the round billet during transportation. In addition, multiple curvature spaces are formed in each groove, so that round billets of different diameters can be in surface contact with the arc surface of the corresponding curvature. While ensuring the stable limiting of round billets of different diameters, it is also beneficial to reduce the damage to the protective device caused by stress concentration at the contact position. At the same time, according to the relationship between force and reaction force, it can be known 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. In addition, the connecting piece 22 adopts the structural form of a whole welding strip and a plurality of welding blocks, which can further ensure the connection strength between the limiting support frames 21.

[0080] The wavy space in this embodiment can be used exclusively for the transfer operation of round billets. Although the multi-curvature space can form surface contact with the corresponding diameter round billets to ensure the stability of the support, the number of arc surfaces in the multi-curvature space is limited after all. In order to further expand the scope of use of the wavy column assembly, this embodiment can solve this problem by adding a load-bearing plate 23.

[0081] Specifically, refer to Fig.13As shown, a load-bearing plate 23 is provided in the groove of the wavy space, and the outer peripheral wall of the load-bearing plate 23 is consistent with the shape of the corresponding multi-curvature space to ensure that the load-bearing plate 23 and the multi-curvature space can be completely matched, thereby ensuring the stability of the contact between the load-bearing plate 23 and the limiting support frame 21. The load-bearing surface 231 of the load-bearing plate 23 is also a multi-curvature space composed of at least two arc surfaces with different curvatures, and the curvature of the inner arc surface of the load-bearing surface 231 is different from the curvature of the inner arc surface of the groove. Assuming that the multi-curvature space in the groove is composed of three arc surfaces with different curvatures, it can correspond to the transportation of three types of round billets. If the multi-curvature space in the load-bearing surface 231 is composed of another three arc surfaces with different curvatures, it can correspond to the transportation of another three types of round billets, thereby effectively improving the scope of application of the wavy standing column assembly.

[0082] In the present embodiment, the wavy standing column assembly cannot be used at the same time because the multi-curvature space of the load-bearing plate 23 and the multi-curvature space on the limit support frame 21 cannot be used at the same time. Therefore, in order to facilitate the assembly operation between the load-bearing plate 23 and the limit support frame 21, the two can be connected in a clamping form. For example, a plurality of clamping blocks 232 are provided on both side surfaces of the load-bearing plate 23. Stop blocks 27 are provided on the side wall of the limit support frame 21, and the stop blocks 27 are arranged in groups of two, and a limit groove for the clamping block 232 to be clamped is formed between the two stop blocks 27 of a group of stop blocks. At the same time, in order to further ensure the stability of the stop block 27 in the limit groove. Locking holes are provided at corresponding positions on the stop block 27 and the clamping block 232. When the stop block 27 is clamped in the limit groove, the clamping block 232 is locked by a pin shaft or a bolt.

[0083] Another embodiment of the load-bearing plate 23 of the wave-shaped standing column assembly is as follows: Fig.14 As shown, the bearing surface 231 of the bearing plate 23 is a plane, and the bearing plates 23 in adjacent grooves are arranged at the same height. The design of the plane bearing surface 231 can be applied to the transfer operation of slabs, billets, casting residues and other goods, thereby further increasing the applicability of the wave-shaped column assembly.

[0084] refer to Fig.15 As shown in the figure, as an embodiment of the low standing column assembly 3, the low standing column assembly 3 includes a cross arm 31 and columns 32 welded at both ends of the cross arm 31. The upper surface of the cross arm 31 and the inner side surface of the column 32 together form a limited space. Of course, the inner side surface of the column 32 can be a vertical plane or a curved surface.

[0085] Specifically, the crossarm 31 can be selected to be an H-shaped steel. Reinforcement plates 33 are welded in the belly space on both sides of the H-shaped steel to enhance the load-bearing performance of the crossarm 31. At the same time, ventilation holes are provided on the reinforcement plates 33. On the one hand, it can accelerate the circulation of air in the belly space, which is beneficial to reduce the heat radiation caused by the high-temperature steel billet to the crossarm 31; on the other hand, it is beneficial to enhance the overall toughness of the crossarm 31 to disperse the impact damage to the crossarm 31 caused by the sudden fall of the steel billet during the lifting process. It is worth mentioning that the above-mentioned belly space refers to the area enclosed by the upper and lower flanges of the H-shaped steel and one side of the web.

[0086] In this embodiment, a welding port for the end of the H-shaped steel to pass through is provided in the column 32. The opening of the welding port can increase the welding area between the column 32 and the cross arm 31 to ensure the welding strength. On the other hand, it can ensure that both ends of the abdominal space are in an unobstructed state, which is also conducive to heat dissipation.

[0087] In order to further reduce the heat damage caused by the high-temperature steel billet to the cross arm 31 and the heat insulation layer 1, pads 34 are provided at intervals on the upper and lower surfaces of the cross arm 31, that is, the upper and lower flanges of the H-shaped steel, and a heat dissipation channel is left between adjacent pads 34. Preferably, the heat dissipation channel is inclined to prevent the round billet from being stuck in the heat dissipation channel, so that the gravity of the round billet is concentrated on one side of the pad 34 and the damage of the pad 34 is accelerated.

[0088] In the low column assembly 3 of this embodiment, since the cross arm 31 and the column 32 are welded, the impact resistance of the column 32 is significantly lower than that of the high column assembly 2. Therefore, the low column assembly 3 is suitable for the transportation of some small-sized steel billets, for example, round billets with a diameter of less than 450 mm, or other types of steel billets with a thickness of less than 250 mm.

[0089] When it is necessary to transport larger-sized steel billets, the above-mentioned high column assembly 2, or a combination of the high column assembly 2 and the low column assembly 3, can be used. When the high and low column assemblies are used together, the low column assembly 3 is mainly used to assist the high column assembly 2 in sharing the vertical force of the steel billet to optimize the overall force condition of the vehicle; and the horizontal force of the steel billet is mainly borne by the high column assembly. This combination of high and low column assemblies not only ensures the safety of protection, but also reduces the number of high column assemblies used to further reduce the dead weight of the shelf. When the high and low column assemblies are used in combination, at least 2 high column assemblies 2 are provided, preferably 3. The bottom column assembly 3 can be flexibly distributed according to actual conditions. Preferably, the bottom column assembly 3 is set as close to the vehicle's own load-bearing beam as possible.

[0090] In addition, it should be noted that when the high and low station column assemblies are used in combination, the height of the limit space of the low station column assembly 3 should be lower than that of the high station column assembly 2, and the clearance length of the limit space of the low station column assembly 3 should not be less than that of the high station column assembly 2. Figure 8 As shown, the height H of the confined space refers to the maximum depth of the confined space, that is, the vertical distance from the bottom to the top of the confined space. The clearance length L1 of the confined space refers to the maximum length of the confined space, that is, the distance between the vertical sections on both sides of the confined space.

[0091] In this embodiment, by reducing the height H of the limiting space of the low column assembly 3, the impact loss between the steel billet and the column 32 can be reduced on the one hand, and the interference with the lifting equipment can be avoided on the other hand. Preferably, the height H of the limiting space of the low column assembly 3 is less than 250 mm, while the height H of the limiting space of the high column assembly 2 is greater than 250 mm. At the same time, by increasing the clearance length L1 of the low column assembly 3, it can be effectively avoided that the column 32 of the low column assembly 3 alone bears the horizontal impact force of the steel billet.

[0092] refer to Fig.16 , Fig.17 As shown, as an embodiment of the heat insulation layer 1, the heat insulation layer 1 includes a frame 11 and a heat insulation material filled in the frame 11. The frame 11 includes a pair of longitudinal beams 111 arranged opposite to each other, and a plurality of cross beams 112 located between the longitudinal beams 111. The plurality of cross beams 112 divide the frame 11 into a plurality of relatively independent areas, each of which can be filled with heat insulation material separately, and the heat insulation material here can adopt the existing technology. At the same time, sealing plates 12 are provided on the upper and lower sides of each area to limit the heat insulation material to the respective area.

[0093] Preferably, the longitudinal beam 111 and the cross beam 112 are both H-shaped steels, and a portion of the upper and lower flanges at both ends of the cross beam 112 are cut off, leaving only the web portion. During assembly, the exposed web at the end of the cross beam 12 is extended into the belly space of the longitudinal beam 111 and contacts the web of the longitudinal beam 111; at the same time, ensure that the end of the flange of the cross beam 112 after cutting corresponds to and is close to the side of the flange of the longitudinal beam 111; then weld at each connection to ensure the welding strength between the cross and longitudinal beams. Similarly, the surroundings of the sealing plate 12 can be extended into the belly space of the corresponding H-shaped steel and then welded. Furthermore, the sealing plate 12 at the top of the thermal insulation layer 1 is a non-planar structure, such as a wavy or cross-shaped structure. In addition, in order to ensure the connection strength between the thermal insulation layer 1 and the high and low station column assembly, welding holes for the longitudinal beam 111 of the thermal insulation layer 1 to pass through can be reserved on the high and low station column assembly.

[0094] In this embodiment, the frame part of the heat insulation layer 1 is welded by H-shaped steel. Compared with the traditional square billet, H-shaped steel is not only lighter in weight, but also has good mechanical properties, which is conducive to resisting the impact of the steel billet. At the same time, the upper surface of the heat insulation layer 1 is designed to be wavy or "F" shaped, which is conducive to ventilation and heat dissipation on the one hand; on the other hand, compared with the planar structure, this non-planar bending structure has stronger impact resistance and deformation resistance, large space for thermal expansion and contraction, and stronger thermal deformation resistance. The heat insulation layer 1 can also be made into a split type piece by piece. According to the arrangement of the cross arm assembly after loading, the length and width between the two cross arms and the height of about 100mm are used as the standard. Steel, steel plate, and heat insulation material are made into a cuboid in the above manner and connected with the cross arm by bolts to form a split heat insulation layer that can be disassembled separately, which is convenient for maintenance. When transporting goods at room temperature, it can be disassembled to reduce weight, increase loading capacity, and reduce costs and increase efficiency.

[0095] In addition, the present embodiment also provides a frame assembly, including a frame body and a protective frame and a heat insulation layer arranged on the frame body; wherein the frame body is newly designed as an integral structure in combination with the above-mentioned shelf and the heat insulation layer, and the protective frame can be a protective shelf of any structural form in the above-mentioned embodiments, and the heat insulation layer can be any structural form in the above-mentioned embodiments.

[0096] Of course, the protective rack and the frame assembly may also be connected in a detachable manner, such as by snap-fitting, bolting, etc.; or in a fixed manner, such as by welding, etc.

[0097] The above schematically describes the present invention and its implementation methods, which are not restrictive. The figures shown in the drawings are only one of the implementation methods of the present invention, and the actual structure is not limited thereto. At the same time, the structural forms of the various different station column assemblies in the present invention can be interchanged in terms of their internal detailed structures without violating the design principles. Therefore, if a person of ordinary skill in the art is inspired by this, and does not deviate from the purpose of the invention, and does not creatively design a structural method and implementation method similar to the technical solution, they should all fall within the scope of protection of the present invention.

Claims

1. A steel billet transfer protection shelf, comprising a heat insulation layer (1), characterized in that: The heat insulation layer (1) is provided with a plurality of high standing column assemblies (2) along its length direction; The high standing column assembly (2) comprises a plurality of spaced apart limiting support frames (21), and adjacent limiting support frames (21) are welded and connected via connecting pieces (22); The limiting support frame (21) is formed by integrally cutting a steel plate, and its inner surface forms a limiting space; the limiting spaces of a plurality of limiting support frames (21) together form a placement space for placing the steel billets to be transported.

2. The steel billet transfer protection shelf according to claim 1 is characterized by: The placement space is a U-shaped rectangular space, a U-shaped arc space, or a wavy space composed of a plurality of grooves; wherein each groove of the wavy space is composed of at least two arc surfaces with different curvatures.

3. The steel billet transport protection shelf according to claim 2 is characterized by: A load-bearing plate (23) welded to the position-limiting support frame (21) is provided in the rectangular space or the arc-shaped space, and the load-bearing plate (23) has a load-bearing surface (231) that is consistent with the corresponding space.

4. The steel billet transport protection shelf according to claim 2 is characterized by: A load-bearing plate (23) is provided in the groove of the wave-shaped space and is clamped with the limiting support frame (21); the load-bearing surface (231) of the load-bearing plate (23) is composed of at least two arc surfaces with different curvatures, or a plane; wherein the curvature of the load-bearing surface (231) is different from that of the arc surface in the corresponding groove.

5. A steel billet transfer protection shelf according to any one of claims 1-4, characterized in that: The connecting piece (22) is an integral component and / or is formed by a plurality of welded blocks distributed at intervals.

6. The steel billet transfer protection shelf according to claim 5, characterized in that: An end plate (24) is welded to the end of the high standing column assembly (2); the bottom of the end plate (24) extends out of the bottom of the limit support frame (21) and is provided with a limit block (25); the outer end surface of the limit support frame (21) has a first protruding portion (211); and the end plate (24) is provided with a welding groove for the first protruding portion (211) to pass through.

7. The steel billet transfer protection shelf according to claim 6, characterized in that: A bottom plate (26) is provided in the inner concave notch on the lower surface of the position-limiting support frame (21), and a welding groove is provided on the bottom plate (26) for the second protrusion (212) on the horizontal section of the concave notch to pass through.

8. The steel billet transport protection shelf according to claim 1, characterized in that: It also includes a low standing column assembly (3), the low standing column assembly (3) including a cross arm (31) and columns (32) arranged at both ends of the cross arm (31); wherein the cross arm (31) is an H-shaped steel, and the upper flange of the H-shaped steel and the inner side surface of the column (32) together enclose the limiting space; and the height of the limiting space of the low standing column assembly (3) is lower than that of the high standing column assembly (2), and the clearance length of the limiting space of the low standing column assembly (3) is not less than that of the high standing column assembly (2).

9. The steel billet transfer protection rack according to claim 8, characterized in that: The thermal insulation layer (1) comprises a frame (11) and thermal insulation material filled in the frame (11); wherein the frame (11) is surrounded by H-shaped steels that alternate in horizontal and vertical directions, and the upper and lower surfaces of the frame (11) are provided with sealing plates (12), and the surroundings of the sealing plates (12) respectively extend into the belly space of the corresponding H-shaped steel; the upper surface of the thermal insulation layer (1) is wavy, cross-shaped or flat.

10. A vehicle frame assembly, comprising a vehicle frame body, characterized in that: The frame body is provided with a steel billet transfer protection shelf as described in any one of claims 1-9.

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