Connecting structure of light-grade crane portal rigid frame

Abstract

The utility model relates to the technical field of portal rigid frames, and discloses a connecting structure of a light-grade crane portal rigid frame, which comprises a channel steel support and a profile steel support arranged on the outer side of the channel steel support, a bracket column is arranged on one side of the profile steel support, four stiffening ribs are fixed on the inner wall of the profile steel support, and gusset plates are arranged among the four stiffening ribs. A first connecting mechanism is arranged between the gusset plate and the channel steel support, a second connecting mechanism is arranged between the stiffening ribs, and a third connecting mechanism is arranged between the stiffening ribs and the gusset plate. By arranging the channel steel support, the profile steel support, the bracket column, the gusset plate and the three connecting mechanisms, the overall rigidity distribution can be effectively improved; the out-of-plane rigidity of the rigid frame is enhanced, so that the whole structure bears the force together, and the problem that when the crane beam is used as a rigid tie bar between supports, but the actual horizontal force of the crane beam is transmitted, the columns are firstly twisted and deformed and then are transmitted to the supports between the columns, and safety accidents are easily caused is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of portal frames, in particular to a connection structure of a portal frame for a light crane. Background Art

[0002] A portal frame is a type of building structure that is mainly made of steel components, including a portal frame and rigidly connected beams and columns. This structure is widely used in large-span buildings such as modern industrial plants, warehouses, gymnasiums, exhibition halls, etc. The portal frame has the following characteristics: large span, flexibility, economy, fast construction speed, good seismic performance and easy maintenance. The design of the portal frame needs to consider factors such as load distribution, material strength, stability, etc., and computer-aided design software is usually used for accurate calculation and simulation.

[0003] For portal frames, the lateral load is mainly borne by the portal frames, while the longitudinal loads (wind loads, crane loads and earthquake loads) are mainly borne by the support system. Reasonable arrangement of the support system can effectively optimize the internal force distribution of the main load-bearing components, effectively improve the overall stiffness distribution, enhance the rigidity outside the plane of the frame, and make the structure bear the load together. At present, it is more common for the crane beam to also serve as the rigid tie rod between supports. However, when the crane beam actually transmits horizontal force, the column first twists and deforms before transmitting it to the support between the columns, resulting in a low support effect, which is easy to cause safety accidents. Utility Model Content

[0004] The utility model aims to provide a connection structure of a light crane portal frame to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a connection structure of a light crane portal frame, including a channel steel bracket, and also including:

[0006] A steel bracket is arranged on the outside of the channel steel bracket, a corbel column is arranged on one side of the steel bracket, four stiffening ribs are fixed to the inner wall of the steel bracket, a node plate is arranged between the four stiffening ribs, a first connecting mechanism is arranged between the node plate and the channel steel bracket, a second connecting mechanism is arranged between the stiffening ribs, and a third connecting mechanism is arranged between the stiffening ribs and the node plate.

[0007] Preferably, the first connection mechanism comprises a first double plywood arranged on the inner side of the channel steel bracket, and the inner walls of the first double plywood, the channel steel bracket and the node plate are all provided with first threaded holes.

[0008] Preferably, the inner wall of the first threaded hole is threadedly connected to a first screw rod, and the outer side of the first screw rod is threadedly connected to a first nut.

[0009] Preferably, the second connection mechanism comprises an oblique rod disposed between the stiffening ribs, and connecting plates are fixed to both ends of the oblique rod.

[0010] Preferably, the inner walls of the connecting plate and the stiffening rib are both provided with second threaded holes, and the inner walls of the second threaded holes are threadedly connected with second screw rods.

[0011] Preferably, the third connecting mechanism includes a second double plywood arranged between the stiffening ribs, the second double plywood and the inner wall of the node plate are both threadedly connected with a third screw, the outer side of the third screw is threadedly connected with a second nut, the second double plywood and the inner wall of the stiffening rib are both threadedly connected with a third threaded hole, and the inner wall of the third threaded hole is threadedly connected with a fourth screw.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model can effectively improve the overall stiffness distribution and enhance the rigidity outside the plane of the rigid frame by arranging channel steel brackets, steel brackets, corbel columns, node plates and three sets of connection mechanisms, so that the structure as a whole can bear the load together, and solves the problem that the crane beam also serves as a rigid tie rod between supports, but when the actual crane beam has horizontal force transmission, the column first twists and deforms before transmitting it to the support between the columns, resulting in low support effect and easy occurrence of safety accidents. The utility model improves the overall support performance, thereby improving safety, and is easy to assemble and disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A structural schematic diagram of a preferred embodiment of the connection structure of the light crane portal frame provided by the utility model;

[0015] Figure 2 A structural schematic diagram of a first connecting mechanism provided by the utility model;

[0016] Figure 3 A structural schematic diagram of a second connecting mechanism provided by the utility model;

[0017] Figure 4 This is a structural schematic diagram of the third connecting mechanism provided by the utility model.

[0018] In the figure: 1. channel steel bracket; 2. steel bracket; 3. corbel column; 4. stiffening rib; 5. node plate; 6. first connecting mechanism; 61. first double plywood; 62. first threaded hole; 63. first screw; 64. first nut; 7. second connecting mechanism; 71. oblique rod; 72. connecting plate; 73. second threaded hole; 74. second screw; 8. third connecting mechanism; 81. second double plywood; 82. third screw; 83. second nut; 84. third threaded hole; 85. fourth screw. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 As shown, a connection structure of a light crane portal frame includes a channel steel bracket 1, by which the movement of the crane can be facilitated; a steel bracket 2 arranged on the outside of the channel steel bracket 1, by which the channel steel bracket 2 can support the channel steel bracket 1; a corbel column 3 is arranged on one side of the steel bracket 2, by which the stability of the structure of the steel bracket 2 can be improved; four stiffening ribs 4 are fixed to the inner wall of the steel bracket 2, by which the structural stability of the steel bracket 2 can be improved; a node plate 5 is arranged between the four stiffening ribs 4, by which the first connecting mechanism 6 and the third connecting mechanism 8 can be fixed; a first connecting mechanism 6 is arranged between the node plate 5 and the channel steel bracket 1, by which the channel steel bracket 1 and the node plate 5 can be connected; a second connecting mechanism 7 is arranged between the stiffening ribs 4, by which the oblique rod 71 can be connected to the stiffening rib 4; a third connecting mechanism 8 is arranged between the stiffening rib 4 and the node plate 5, by which the stiffening rib 4 and the node plate 5 can be connected.

[0021] See also Figure 1 and Figure 2 As shown, the first connecting mechanism 6 includes a first double plywood 61 arranged on the inner side of the channel steel bracket 1, and the inner walls of the first double plywood 61, the channel steel bracket 1 and the node plate 5 are all provided with a first threaded hole 62; the inner wall of the first threaded hole 62 is threadedly connected with a first screw 63, and the outer side of the first screw 63 is threadedly connected with a first nut 64; the channel steel bracket 1 and the node plate 5 can be connected by setting the first double plywood 61, and the channel steel bracket 1 and the node plate 5 can be connected and fixed by setting the first threaded hole 62, the first screw 63 and the first nut 64.

[0022] See also Figure 1 and Figure 3 As shown, the second connecting mechanism 7 includes an oblique rod 71 arranged between the stiffening ribs 4, and connecting plates 72 are fixed at both ends of the oblique rod 71; the inner walls of the connecting plate 72 and the stiffening rib 4 are provided with second threaded holes 73, and the inner walls of the second threaded holes 73 are threadedly connected with second screws 74; the stability of the supporting structure can be improved by arranging the oblique rod 71, and the oblique rod 71 can be connected and fixed to the stiffening rib 4 by arranging the second threaded holes 73 and the second screws 74.

[0023] See also Figure 1 , Figure 3 and Figure 4 As shown, the third connecting mechanism 8 includes a second double plywood 81 arranged between the stiffening ribs 4, the second double plywood 81 and the inner wall of the node plate 5 are both threadedly connected with a third screw 82, the outer side of the third screw 82 is threadedly connected with a second nut 83, the second double plywood 81 and the inner wall of the stiffening rib 4 are both threadedly connected with a third threaded hole 84, the inner wall of the third threaded hole 84 is threadedly connected with a fourth screw 85, the stiffening rib 4 and the node plate 5 can be connected by arranging the second double plywood 81, and the stiffening rib 4 and the node plate 5 can be connected and fixed by arranging the third screw 82, the second nut 83, the third threaded hole 84 and the fourth screw 85.

[0024] Working principle: workers can connect and fix the stiffening rib 4 to the node plate 5 through the third screw 82, the second nut 83, the third threaded hole 84 and the fourth screw 85. The stiffening rib 4 is fixed to the inner wall of the steel support 2. A corbel column 3 is set on one side of the steel support 2. The oblique rod 71 can be connected and fixed to the stiffening rib 4 through the second threaded hole 73 and the second screw 74. Finally, the channel steel support 1 and the node plate 5 are connected and fixed through the first double plywood 61, the first threaded hole 62, the first screw 63 and the first nut 64, so that the channel steel support 1 is connected and fixed to the steel support 2.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A connection structure of a light crane portal frame, comprising a channel steel bracket (1), characterized in that: Also includes: A steel support (2) is arranged outside the channel steel support (1), a corbel column (3) is arranged on one side of the steel support (2), four stiffening ribs (4) are fixed to the inner wall of the steel support (2), a node plate (5) is arranged between the four stiffening ribs (4), a first connecting mechanism (6) is arranged between the node plate (5) and the channel steel support (1), a second connecting mechanism (7) is arranged between the stiffening ribs (4), and a third connecting mechanism (8) is arranged between the stiffening ribs (4) and the node plate (5).

2. The connection structure of a light crane portal frame according to claim 1, characterized in that: The first connection mechanism (6) comprises a first double clamping plate (61) arranged on the inner side of the channel steel bracket (1), and the inner walls of the first double clamping plate (61), the channel steel bracket (1) and the node plate (5) are all provided with first threaded holes (62).

3. The connection structure of a light crane portal frame according to claim 2, characterized in that: The inner wall of the first threaded hole (62) is threadedly connected to a first screw rod (63), and the outer side of the first screw rod (63) is threadedly connected to a first nut (64).

4. The connection structure of a light crane portal frame according to claim 1, characterized in that: The second connection mechanism (7) comprises an oblique rod (71) arranged between the stiffening ribs (4), and connecting plates (72) are fixed to both ends of the oblique rod (71).

5. The connection structure of a light crane portal frame according to claim 4, characterized in that: The inner walls of the connecting plate (72) and the reinforcing rib (4) are both provided with a second threaded hole (73), and the inner wall of the second threaded hole (73) is threadedly connected with a second screw rod (74).

6. The connection structure of a light crane portal frame according to claim 1, characterized in that: The third connection mechanism (8) comprises a second double clamping plate (81) arranged between the stiffening ribs (4); the second double clamping plate (81) and the inner wall of the node plate (5) are both threadedly connected with a third screw (82); the outer side of the third screw (82) is threadedly connected with a second nut (83); the second double clamping plate (81) and the inner wall of the stiffening rib (4) are both threadedly connected with a third threaded hole (84); the inner wall of the third threaded hole (84) is threadedly connected with a fourth screw (85).

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