A reinforced cross arm assembly

Abstract

The present invention discloses a reinforced cross arm assembly, which belongs to the technical field of steel billet transportation protection devices. The present invention includes a support assembly with a placement space, wherein the support assembly includes a plurality of brackets arranged at intervals, and adjacent brackets are welded and connected by a plurality of reinforcing connecting ribs; wherein the bracket is formed by a standing steel plate, and the steel plate is cut as a whole to form a notch, and the notches on the plurality of brackets together form the placement space; and a load-bearing plate adapted to the placement space, wherein the load-bearing plate is formed by bending the steel plate as a whole, and the load-bearing plate is located in the placement space of the support assembly, and is connected to the support assembly by welding. The cross arm assembly of the present invention is composed of a plurality of steel plate brackets distributed at intervals, and a plurality of reinforcing connecting ribs are added in the gaps formed between adjacent steel plates, which effectively ensures the connection strength between the brackets and improves their service life, thereby ensuring safety during transportation.

Description

Technical Field

[0001] The invention belongs to the technical field of steel billet transportation protection devices, and more specifically, relates to a reinforced cross arm assembly. Background Art

[0002] At present, domestic steel mills generally use semi-trailers to undertake the transportation tasks of special steel round billets, square billets, and casting residues. However, 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, installing columns to prevent the billets from sliding during transportation is a basic requirement for vehicle secondary development.

[0003] The traditional protective structure uses square billets as protective columns and welds them directly to the side beams of the semi-trailer compartment. However, since the side beams of the compartment are not suitable for large impact forces, once the welding position is damaged, the compartment body will be damaged as well. To solve this problem, a crossarm plus column structure was later adopted, that is, the standing columns were welded to the two ends of the crossarm, and the space enclosed between the crossarm and the standing columns was used to limit the steel billet to prevent it from falling. Although this structural formation can solve the problem that the compartment body is easily damaged, its service life cannot be effectively guaranteed. This is because the welding area between the column and the end of the crossarm is limited. After being frequently impacted by the steel billet, it is easy to open welds and break, thereby increasing the risk of the steel billet falling off.

[0004] After searching, a heavy-duty semi-trailer protective device for transporting high-temperature slabs is disclosed in the patent CN209441271U. The application includes a protective rod, a drive shaft, a first support sleeve, a second support sleeve, a third support sleeve, a support shaft, a telescopic drive sleeve, a telescopic drive fork, a rotating drive arm, a telescopic spring brake cylinder and a rotating spring brake cylinder. The protective rod is vertically fixed to one end of the drive shaft, and the drive shaft is mounted on the first support sleeve and the second support sleeve. The telescopic drive sleeve is mounted on the drive shaft, and the telescopic spring brake cylinder push rod is telescopic to drive the drive shaft to move axially. The rotating drive arm is fixed on the drive shaft, and the rotating drive arm is connected to the rotating spring brake cylinder push rod. The rotating spring brake cylinder push rod is telescopic to drive the drive shaft to rotate around its own axis.

[0005] Patent CN204453281U discloses a rotating column transport rack. The application includes a transport rack assembly, wherein a base is provided at the bottom of the transport rack assembly, one end of the base is connected to a fixed column, a hollow channel is provided at the other end of the fixed column, a sliding groove is provided at one side of the hollow channel, a rotating column movable in the hollow channel is provided in the hollow channel, one end of the rotating column is connected to a rotating shaft, and the rotating shaft can slide in the sliding groove of the hollow channel.

[0006] The above applications all involve technical improvements to the protective devices of transport racks, and all use rotatable columns to facilitate the loading and unloading of goods. However, due to the rotatable connection method of the columns, the connection strength of the columns needs to be further improved. Especially when transporting round billets, due to uneven road surfaces or frequent turns, the round billets will move sideways and frequently hit the protective bars. If the connection strength of the protective bars cannot be effectively guaranteed, the risk of the billets sliding will be greatly increased. Summary of the invention

[0007] 1. Problems to be solved

[0008] In view of at least some of the problems existing in the above-mentioned prior art, the present invention proposes a reinforced crossarm assembly, the purpose of which is to solve the problem that the existing steel billet protection device has a short service life, thereby causing a greater risk of the steel billet falling off.

[0009] 2. Technical solution

[0010] In order to solve the above problems, the technical solution adopted by the present invention is as follows:

[0011] A reinforced cross arm assembly of the present invention includes a support component having a placement space,

[0012] The support assembly includes a plurality of brackets arranged at intervals, and adjacent brackets are welded and connected by a plurality of reinforcing connecting ribs; wherein the bracket is integrally cut from a steel plate and has a notch thereon, and the notches on the plurality of brackets together form the placement space;

[0013] and a load-bearing plate adapted to the placement space,

[0014] The load-bearing plate is formed by integrally bending a steel plate, and is located in the placement space of the support assembly and is connected to the support assembly by welding.

[0015] Furthermore, the inner end surface of the reinforcing connecting rib is aligned with the inner surface of the bracket, and the inner end surface of the reinforcing connecting rib is welded to the load-bearing plate.

[0016] Furthermore, both sides of the load-bearing plate extend 5-20 mm beyond the side edges of the supporting assembly.

[0017] Furthermore, two ends of the support assembly are welded with a standing plate, the bottom of the standing plate extends out of the lower surface of the bracket and is equipped with a limiting block.

[0018] Furthermore, the end face of the bracket is in a step shape formed by a first end face and a second end face, and a welding groove for the second end face to pass through is provided on the station plate.

[0019] Furthermore, the second end surface has an extension section extending out of the lower surface of the bracket, and a bottom plate is welded to the lower surface of the support assembly, and the bottom plate is located between the extension sections on both sides.

[0020] Furthermore, the lower surface of the bracket has a plurality of first protrusions distributed at intervals along its length direction, and the bottom plate is provided with welding grooves for the first protrusions to pass through or to accommodate the first protrusions.

[0021] Furthermore, the notch on the bracket is a U-shaped arc-shaped notch, and the load-bearing plate is an arc-shaped load-bearing plate that is compatible with the arc-shaped notch.

[0022] Furthermore, the notch on the bracket is a rectangular notch in a U-shape, and L-shaped reinforcing plates are welded on both sides of the corners of the bracket; and welding holes are provided on the reinforcing plates.

[0023] Furthermore, it also includes a movable saddle frame for dividing the load-bearing space on the load-bearing plate, and the movable saddle frame includes a connecting plate and a stop block arranged on the side of the connecting plate; wherein the connecting plate is provided with a bayonet for being clamped on the support assembly.

[0024] 3. Beneficial effects

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] (1) The reinforced crossarm assembly of the present invention is composed of a plurality of brackets distributed at intervals. The brackets are formed by integral cutting of steel plates, and a plurality of reinforcing ribs are added in the gaps formed between adjacent steel plates, which effectively ensures the connection strength between the brackets and improves their service life, thereby ensuring safety during transportation. At the same time, in conjunction with the setting of the load-bearing plate, the contact area with the steel billet can be effectively increased, so that the impact force can be more evenly distributed to each bracket, ensuring that multiple brackets can bear the force together, thereby further improving the service life. In addition, the reinforced crossarm assembly of the present invention is composed of steel plates as a whole. Compared with the traditional square billet structure, its own weight can be effectively controlled.

[0027] (2) The reinforced cross arm assembly of the present invention forms a plane with the inner end surface of the reinforcing rib and the inner surface of the bracket without interfering with the assembly of the load-bearing plate, so as to jointly bear the load, which is also conducive to ensuring the service life of the bracket and reducing the risk of the steel billet falling off. At the same time, the side edges of the support assembly extend from both sides of the load-bearing plate, which can effectively ensure the welding strength between the two.

[0028] (3) In the reinforced crossarm assembly of the present invention, in addition to welding around the contact surfaces between the station plate and the end surface of the support assembly, and between the bottom plate and the lower surface of the support assembly, additional welding can be performed at the position of the welding groove to increase the welding area, thereby further ensuring the structural strength of the entire crossarm assembly and also helping to extend its service life.

[0029] (4) The reinforced crossarm assembly of the present invention can flexibly divide the load-bearing space on the load-bearing plate by setting a detachable movable saddle frame to meet the transportation needs of single-variety or mixed-variety cargoes with different cargoes and different loading amounts. At the same time, the setting of the movable saddle frame can minimize the loading gap between the steel billets and reduce the risk of lateral movement of the steel billets during transportation, thereby reducing the impact loss of the crossarm assembly, which is also beneficial to extending the service life of the crossarm assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of a reinforced cross arm assembly of the present invention;

[0031] Figure 2 It is a structural explosion diagram of a reinforced cross arm assembly of the present invention;

[0032] Figure 3 It is a structural schematic diagram of the support assembly in the present invention;

[0033] Figure 4 It is a schematic diagram of the structure of the support in the present invention;

[0034] Figure 5 It is a structural schematic diagram of another embodiment of a reinforced cross arm assembly of the present invention;

[0035] Figure 6 It is a structural schematic diagram of the mortise and tenon reinforced cross arm assembly of the present invention;

[0036] Figure 7 It is a structural schematic diagram of the bracket of the mortise and tenon type reinforced cross arm assembly in the present invention;

[0037] Figure 8 It is a structural schematic diagram of the load-bearing plate of the mortise and tenon reinforced cross arm assembly of the present invention;

[0038] Fig. 9 It is a structural schematic diagram of the support component of the mortise and tenon reinforced cross arm assembly of the present invention;

[0039] Fig.10 It is a structural schematic diagram of the movable saddle frame in the present invention;

[0040] Fig.11 It is a schematic diagram of the assembly between the movable saddle frame and the supporting assembly in the present invention;

[0041] Fig.12 for Figure 1 main view.

[0042] In the figure: 1, support assembly; 11, bracket; 111, first end surface; 112, second end surface; 113, extension section; 114, first protrusion; 115, second protrusion; 12, reinforcing connecting ribs; 13, reinforcing plate; 14, limiting plate;

[0043] 2. load-bearing plate; 21. third protruding portion; 3. standing plate; 4. limiting block; 5. bottom plate;

[0044] 6. Movable saddle frame; 61. Connecting plate; 62. Stop block. DETAILED DESCRIPTION

[0045] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings.

[0046] 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.

[0047] The present invention is further described below in conjunction with specific embodiments.

[0048] like Figure 1 , Figure 2 As shown, a reinforced cross arm assembly of this embodiment includes a support assembly 1 and a load-bearing plate 2. The support assembly 1 is a hollow structure formed by welding steel plates. The support assembly 1 has a placement space that is mutually compatible with the load-bearing plate 2. The load-bearing plate 2 is welded and arranged in the placement space. The inner surface of the load-bearing plate 2 forms a load-bearing space for placing the steel billets to be transported.

[0049] Specifically, refer to Figure 3 As shown, the support assembly 1 includes a plurality of brackets 11 arranged at intervals, and adjacent brackets 11 are welded and connected by a plurality of reinforcing connecting ribs 12. The brackets 11 are formed by a standing steel plate, and the steel plate is cut with notches, and the notches on the plurality of brackets 11 together form the above-mentioned placement space.

[0050] The reinforcing connecting ribs 12 and the load-bearing plate 2 can also be made of steel plates. At the same time, through holes can be provided in the middle of the reinforcing connecting ribs 12, preferably round holes. Correspondingly, through holes are also provided on the two side standing plates 3 (which will be introduced in detail below) in the coaxial direction. The opening of these through holes has the following advantages. First, it is beneficial for ventilation and heat dissipation inside the cross arm assembly and the outside world at all times, avoiding the expansion of air in the closed space when transporting high-temperature steel billets and affecting the service life of the cross arm assembly. Second, the internal state can be checked through these through holes, and problems can be dealt with in time to eliminate potential hazards during use. Third, it is beneficial to enhance its overall toughness. Fourth, it is beneficial to reduce its own weight and save costs.

[0051] Preferably, the load-bearing plate 2 is integrally bent from a whole steel plate. Through the setting of the load-bearing plate 2, the contact area with the steel billet can be effectively increased, the force-bearing form of the support assembly 1 can be optimized, so that the impact force can be more evenly distributed to each bracket 11 and the reinforcing connecting ribs 12, ensuring that multiple brackets 11 and the reinforcing connecting ribs 12 can jointly bear the force evenly and preventing the fracture of a single bracket 11 due to concentrated force. At the same time, the bracket 11 is integrally cut and formed from a steel plate, and the load-bearing plate 2 is integrally bent and formed from a steel plate, and its own strength can also be fully guaranteed. Of course, for the transportation needs of different steel billets, the load-bearing plate 2 can be bent into different shapes, such as "U" shape, "凵" shape, etc., and the following will make a detailed description of these two structural forms.

[0052] In this embodiment, by arranging multiple brackets 11 at intervals and providing multiple reinforcing connecting ribs 12 in the gaps formed between adjacent steel plates, compared with the traditional method of only welding at the ends of two connecting parts, the welding area can be effectively increased to improve the welding strength, thereby greatly extending the service life and the safety of the protection of the cross arm assembly. At the same time, the cross arm assembly in this embodiment is integrally welded by horizontally and vertically交错 steel plates, and its own weight can be effectively controlled compared with the traditional square billet structure.

[0053] To further extend the service life of the cross arm assembly, in this embodiment, in addition to welding the two sides of the reinforcing connecting ribs 12 to the corresponding brackets 11, welding is also required between the inner end surfaces of the reinforcing connecting ribs 12 and the load-bearing plate 2. Preferably, the inner end surfaces of the reinforcing connecting ribs 12 are aligned with the inner surfaces of the brackets 11, so that the inner end surfaces of the reinforcing connecting ribs 12 and the inner surfaces of the brackets 11 form a plane to jointly bear the load. It should be noted that the inner surface of the bracket here is actually the cutting surface left after the steel plate is cut; and the inner end surface of the reinforcing connecting rib 12 refers to the end facing the inner surface of the bracket.

[0054] At the same time, the width of the load-bearing plate 2 needs to be greater than the width of the support assembly 1 to ensure that both sides of the load-bearing plate 2 can extend beyond the side edges of the support assembly 1, so as to facilitate the welding operation between the load-bearing plate 2 and the support assembly 1 and enhance the welding strength between the two. Preferably, both sides of the load-bearing plate 2 extend beyond the side edges of the support assembly 1 by about 5-20 mm, such as 8 mm, 10 mm, 15 mm, 18 mm, etc.

[0055] refer to Figure 2 , Figure 4 As shown, as another implementation of a reinforced cross arm assembly of this embodiment, it also includes a station plate 3, a limit block 4 and a bottom plate 5. Among them, the station plate 3 is located at both ends of the support assembly 1, the limit block 4 is arranged on the inner side of the station plate 3 near the bottom, and the bottom plate 5 is located at the bottom of the support assembly 1.

[0056] Specifically, a notch is cut on the outer end surface of the bracket 11 to form a stepped end surface. For the convenience of description, they are respectively recorded as the first end surface 111 and the second end surface 112. At the same time, a plurality of welding grooves that are adapted to the second end surface 112 are opened on the stand plate 3, and the bottom of the stand plate 3 needs to extend out of the bottom of the bracket 11 for assembling the limit block 4.

[0057] During assembly, first pass the corresponding welding groove through the second end face 112 on the bracket 11, so that the entire station board 3 is hung on the step surface between the first end face 111 and the second end face 112; then, weld the contact surface between the bracket 11 and the support assembly 1, including the contact surface around and the contact surface at the welding groove, to ensure the welding strength between the bracket 11 and the support assembly 1. Finally, the entire crossarm assembly can be clamped on the car body through the extension sections of the station boards 3 on both sides, and locked by adding the limit blocks 4. Among them, the limit blocks 4 and the station boards 3 can be connected by bolts. At the same time, it should be noted that the second end face 112 can either extend the corresponding welding groove or be located in the corresponding welding groove. No matter which form of matching is used, it can have the effect of increasing the welding area.

[0058] At the same time, in order to ensure the connection strength between the bottom plate 5 and the support assembly 1. The second end surface 112 has an extension section 113 extending from the lower surface of the bracket 11, and the lower surface of the bracket 11 has a plurality of first protrusions 114 distributed at intervals along its length direction, and the bottom plate 5 is provided with welding grooves for the first protrusions 114 to pass through or accommodate the first protrusions 114. That is to say, the bottom plate 5 and the support assembly 1 can be formed by the same welding as the station plate 3 and the support assembly 1 to ensure the welding strength.

[0059] Specifically, a notch is cut at the bottom of the bracket 11, the top of the notch forms the lower surface of the bracket 11, and the two ends of the notch form the above-mentioned extension section 113. The bottom plate 5 is located in the notch, and at the same time, it is ensured that the first protrusion 114 corresponds to the welding groove on the bottom plate 5. Similarly, the end of the first protrusion 114 can extend outside the welding groove or be located in the welding groove.

[0060] In the reinforced crossarm assembly of the present embodiment, in addition to welding around the contact surfaces between the station plate 3 and the support component 1, and between the base plate 5 and the support component 1, additional welding may be performed at the positions of the welding grooves to increase the welding area, thereby further ensuring the structural strength of the entire crossarm assembly and also helping to extend its service life.

[0061] In this embodiment, as a structural form of the load-bearing plate 2, the load-bearing plate 2 is in a "U" shape as a whole. Of course, the cutting notch on the bracket 11 is also a U-shaped arc notch. Through such a design, the corners of the bracket 11 and the load-bearing plate 2 can be an arc surface. When the round billet collides with the arc surface of the bracket 11 through the load-bearing plate 2, when the arc surface is subjected to the lever effect of the horizontal component force, it is equivalent to having the support of reinforcing ribs, 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 arc surface on the bracket 11 and the torque effect generated thereby in actual transportation are greatly attenuated, thereby further ensuring the service life of the bracket 11 and ensuring the safety of transportation.

[0062] For ease of understanding, the "U"-shaped load-bearing plate 2 can be regarded as consisting of three parts, namely a horizontal section, a vertical section located on both sides of the horizontal section, and an arc section connecting the horizontal section and the vertical section. In this embodiment, the specific size of the U-shaped load-bearing space on the load-bearing plate 2 is further optimized and designed according to the size of conventionally transported round billets. The conventional transportation sizes here mainly include 380 round billets, 450 round billets, 600 round billets, 700 round billets, 800 round billets, 900 round billets, and 1000 round billets. Preferably, the height H of the load-bearing space is controlled within 330-750mm, for example, 400mm, 500mm, 600mm, 700mm, etc. At the same time, the clearance length L1 of the load-bearing space is controlled within the range of 2.1-2.55m, and the horizontal length L2 is controlled within the range of 1.5-2.17m (reference Fig.12 As shown). First, the design range of the clearance length L1 does not exceed the width of the carriage, which complies with relevant national regulations. Secondly, while meeting the loading requirements of the round billets of the above specifications. By designing the horizontal length L2 and combining the use of the movable saddle body 6 (described in detail below), the risk of the round billets shifting laterally after loading can be reduced as much as possible or even eliminated.

[0063] It should be noted that the above-mentioned height H refers to the maximum depth of the load-bearing space, that is, the vertical distance between the horizontal section and the top of the vertical section; the clear length L1 refers to the maximum length of the load-bearing space, that is, the distance between the two vertical sections; and the horizontal length L2 refers to the actual length of the horizontal section.

[0064] Specifically in this embodiment, taking the loading of 380-round billets, 450-round billets, and 600-round billets as examples. The height of the above-mentioned load-bearing space is 350 mm, the clear length L1 is 2.45 m, and the horizontal length L2 is 1.85 m. This height design is slightly lower than the minimum round billet diameter (380 mm) and higher than the radius of the 600-round billet (300 mm), which can not only effectively protect the above three specifications of round billets, but also effectively avoid interference with the lifting magnetic disk. 4 pieces of 600-round billets, 5 pieces of 450-round billets, or 6 pieces of 380-round billets can be loaded within the clear length L1. At the same time, since the horizontal length L2 is 1.85 m, when loading 4 pieces of 600-round billets or 6 pieces of 380-round billets, the perpendicular line of the centers of the two outermost round billets is located on the arc section, which can make the center of gravity of the round billets on both sides tend to the center of the load-bearing space, thereby having a certain squeezing effect on the middle round billets, equivalent to generating an automatic locking effect by relying on the horizontal component of the self-gravity of the round billets, and reducing the risk of the round billets moving horizontally (rolling). When loading 5 pieces of 450-round billets, the centers of the round billets on both sides are just located at the connection between the arc section and the horizontal section. Although the middle billet cannot be limited by the round billets on both sides, there will be no gap between the round billets at this time. In this case, if the round billets want to roll and move horizontally, the round billets on both sides need to climb up from the starting point of the arc section, which obviously requires a greater horizontal movement force. Therefore, the horizontal movement of the round billets can also be effectively restricted.

[0065] As Figure 5 shown, as another structural form of the load-bearing plate 2, the load-bearing plate 2 is integrally "U"-shaped, and at the same time, a guiding surface inclined outward is provided on the vertical surface of the rectangular load-bearing space. Of course, the cutting notch on the support 11 is also a rectangular notch in the shape of "U". Preferably, L-shaped reinforcing plates 13 are welded on both sides at the corners of the support 11 to ensure the strength of the corners of the support 11 and improve the protection effect. At the same time, the welding strength between the reinforcing plate 13 and the support 11 can be improved by providing inclined surfaces and welding holes on the reinforcing plate 13.

[0066] In this embodiment, since the load-bearing plate 2 is formed by one-time bending of a steel plate, especially for the U-shaped load-bearing plate, there will be a certain difference between the radian at the bending part and the radian formed by the placement space on the support assembly 1, so that the contact surfaces between the two cannot be completely attached, which will affect the later welding effect and the loading effect. For this reason, in this embodiment, the structure of the reinforced cross arm assembly is further optimized.

[0067] As Figure 6 As shown, another implementation of a reinforced crossarm assembly of the present embodiment has the same basic structure as the above, except that a second protrusion 115 is formed on the inner surface of the bracket 11, and a welding groove for the second protrusion 115 to pass through is provided on the load-bearing plate 2. Preferably, the second protrusion 115 is located at the bend of the inner surface of the bracket 11. The welding groove is also provided at the bend of the load-bearing plate 2, and the number and position of the welding groove correspond one-to-one to the second protrusion 115. During assembly, the load-bearing plate 2 is first placed in the placement space of the support assembly 1, and it is ensured that the second protrusion 115 can be inserted into the corresponding welding groove to ensure that the outer peripheral wall of the load-bearing plate 2 can fit with the inner surface of the bracket 11; and then the welding operation is performed.

[0068] Specifically in this embodiment, taking the U-shaped load-bearing plate 2 as an example, refer to Figure 7 , Figure 8 As shown, notches are cut in the middle of the horizontal section of the inner surface of the bracket 11 and the free ends of the vertical sections at both ends, so that the arc section between the horizontal section and the vertical section is an outwardly convex arc section, and the outwardly convex arc section forms the above-mentioned second protrusion 115. Similarly, a welding groove is provided on the arc section between the horizontal section and the vertical section of the U-shaped load-bearing plate 2.

[0069] In the reinforced crossarm assembly of the present embodiment, the load-bearing plate 2 and the support component 1 adopt a mortise and tenon-like assembly method, and the mortise and tenon-like assembly points are located in the relatively difficult-to-attach turning parts, so as to ensure that the outer peripheral wall of the load-bearing plate 2 and the placement space of the support component 1 can fit perfectly as much as possible, which is beneficial to ensure the welding strength.

[0070] Although the above embodiment can solve the problem of complete fit between the load-bearing plate 2 and the support assembly 1 and ensure that the round billet is in direct contact with the second protrusion 115 and completely fits, due to the existence of the second protrusion 115, the impact force of the billet in the horizontal direction mainly acts on the bracket 11 through the second protrusion 115, and the vertical section of the load-bearing plate 2 cannot jointly bear the horizontal force component. At the same time, due to the limited contact area between the second protrusion 115 and the billet, it is easy to cause stress concentration and accelerate the damage of the bracket 11. For this reason, in this embodiment, a third protrusion 21 is provided on the side of the welding groove on the load-bearing plate 2, and the shape of the inner side surface of the third protrusion 21 is consistent with the shape of the inner side surface of the second protrusion 115, so that the inner side surfaces of the second protrusion 115 and the third protrusion 21 can jointly form a supporting surface, which not only increases the contact area with the billet, but also enables the load-bearing plate 2 and the bracket 11 to jointly bear the impact force component in the horizontal direction.

[0071] Further, refer to Fig. 9As shown, in this embodiment, the brackets 11 of the support assembly 1 are divided into two categories, one with the second protrusion 115, denoted as the first bracket 11A; the other without the second protrusion 115, denoted as the second bracket 11B. Among them, the assembly relationship between the first bracket 11A and the load-bearing plate 2 is the same as the above, that is, except for the second protrusion 115 passing through the welding groove of the load-bearing plate 2, the other parts are located below the load-bearing plate 2 and attached to the outer peripheral wall of the load-bearing plate 2. The second bracket 11B is completely attached to the bottom of the load-bearing plate 2, and is mainly used to support the load-bearing plate 2 from the bottom; at the same time, it shares the force transmitted by the third protrusion 21. Preferably, the specific position of the second bracket 11B corresponds to the position of the third protrusion 21 one by one, so that the force at the third protrusion 21 can be transmitted to the corresponding bracket 11, so as to optimize the overall force condition and prevent the position of the load-bearing plate 2 with the third protrusion 21 from being deformed due to lack of support, thereby affecting the overall force condition of the cross arm assembly.

[0072] Specifically in this embodiment, the support assembly 1 includes four brackets 11, wherein two first brackets 11A and two second brackets 11B are provided, and the two first brackets 11A are located in the middle, and the two second brackets 11B are located on both sides. Two welding grooves are provided on the load-bearing plate 2. At the same time, a third protrusion 21 is provided in each of the three areas divided by the two welding grooves on the load-bearing plate 2. Among them, the third protrusions 21 located on both sides are consistent with the positions of the corresponding second brackets 11B.

[0073] As a further optimized design of a reinforced cross arm assembly of this embodiment, based on the above structure, it also includes a movable saddle frame 6. Specifically, refer to Fig.10 , Fig.11 As shown, the movable saddle frame 6 includes a connecting plate 61 and a stop block 62 arranged on the side of the connecting plate 61. Preferably, the upper surface of the stop block 62 is an inclined surface (it can also be set as an arc surface as needed, and when the strength of the stop block 62 and the connecting plate 61 needs to be further enhanced, reinforcing ribs can be added between the two). Among them, a bayonet is opened at the bottom of the connecting plate 61, and the stop block 62 is located above the bayonet. At the same time, there are multiple groups of limit plates 14 on both sides of the support assembly 1, and a limit space is formed between the two single limit plates 14 of each group of limit plates. The two side parts of the bayonet of the connecting plate 61 are located in the limit space and can be locked by bolts. Of course, it is necessary to open assembly holes for bolts to pass through on the limit plates 14 and the two side parts of the bayonet. At the same time, it is worth noting that if the specifications of the loaded steel billet are relatively single, the movable saddle frame 6 can also be directly welded to the support assembly 1.

[0074] The reinforced cross arm assembly of this embodiment can flexibly divide the load-bearing space on the load-bearing plate 2 by setting the movable saddle frame 6, so as to meet the transportation requirements of different goods and single or multiple varieties with different loading amounts. At the same time, by adjusting the specific position of the movable saddle frame 6, the loading gap between the billets (especially round billets) can be reduced as much as possible, and the risk of lateral movement of the billets during transportation can be reduced, thereby reducing the impact loss of the cross arm assembly, which is also conducive to extending the service life of the cross arm assembly.

[0075] 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 reinforced cross arm assembly, characterized in that: It comprises a supporting assembly (1) having a placement space, The support assembly (1) comprises a plurality of brackets (11) arranged at intervals, and adjacent brackets (11) are welded and connected via a plurality of reinforcing connecting ribs (12); wherein the bracket (11) is integrally cut from a steel plate and has a notch thereon, and the notches on the plurality of brackets (11) together form the placement space; and a load-bearing plate (2) adapted to the placement space, The load-bearing plate (2) is formed by integrally bending a steel plate; the load-bearing plate (2) is located in the placement space of the support assembly (1) and is connected to the support assembly (1) by welding.

2. A reinforced cross arm assembly according to claim 1, characterized in that: The inner end surface of the reinforcing connecting rib (12) and the inner surface of the bracket (11) are aligned with each other, and the inner end surface of the reinforcing connecting rib (12) and the load-bearing plate (2) are welded.

3. A reinforced cross arm assembly according to claim 2, characterized in that: Both sides of the load-bearing plate (2) extend 5-20 mm beyond the side edges of the supporting assembly (1).

4. A reinforced cross arm assembly according to any one of claims 1 to 3, characterized in that: Both ends of the support assembly (1) are welded with a standing plate (3), the bottom of the standing plate (3) extends out of the lower surface of the bracket (11) and is equipped with a limiting block (4).

5. The reinforced cross arm assembly according to claim 4, characterized in that: The end face of the bracket (11) is in a stepped shape formed by a first end face (111) and a second end face (112), and a welding groove for the second end face (112) to pass through is provided on the station plate (3).

6. A reinforced cross arm assembly according to claim 5, characterized in that: The second end surface (112) has an extension section (113) extending from the lower surface of the bracket (11), and the lower surface of the support assembly (1) is welded with a bottom plate (5), and the bottom plate (5) is located between the extension sections (113) on both sides.

7. A reinforced cross arm assembly according to claim 6, characterized in that: The lower surface of the bracket (11) has a plurality of first protrusions (114) distributed at intervals along its length direction, and the bottom plate (5) is provided with welding grooves for the first protrusions (114) to pass through or accommodate the first protrusions (114).

8. The reinforced cross arm assembly according to claim 4, characterized in that: The notch on the bracket (11) is a U-shaped arc-shaped notch, and the load-bearing plate (2) is an arc-shaped load-bearing plate that matches the arc-shaped notch.

9. The reinforced cross arm assembly according to claim 4, characterized in that: The notch on the bracket (11) is a rectangular notch in the shape of a U, and L-shaped reinforcing plates (13) are welded on both sides of the corners of the bracket (11); and welding holes are provided on the reinforcing plates (13).

10. A reinforced cross arm assembly according to any one of claims 1 to 3, characterized in that: It also includes a movable saddle frame (6) for dividing the load-bearing space on the load-bearing plate (2), wherein the movable saddle frame (6) includes a connecting plate (61) and a stop block (62) arranged on the side of the connecting plate (61); wherein the connecting plate (61) is provided with a snap-on socket for being clamped on the support assembly (1).

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