Boom main chord member reinforcing structure

Abstract

The utility model discloses a cantilever crane main chord member reinforcing structure which comprises a cantilever crane, the cantilever crane is provided with a plurality of arm sections, main chord members are arranged at four corners of each arm section, two ends of each main chord member are respectively provided with a double-joint and a three-joint, and a liner tube is arranged at the joint of each main chord member and the corresponding double-joint or the corresponding three-joint; middle plates for structural reinforcement are arranged on the side parts of the main chord members, and the two ends of the middle plates are connected with the main chord members through side edge plates respectively. According to the utility model, the main chord member of the cantilever crane is reinforced, the reinforced fixing block structure consisting of the middle plate and the side edge plate is arranged at the side part of the main chord member, and the fixing plate is welded at the side part of the main chord member, so that the strength and rigidity of the cantilever section are enhanced, and the overall stability of the cantilever crane is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of crane boom, especially relates to a boom main chord rod reinforcing structure. BACKGROUND

[0002] The crane boom is composed of several arm sections, and each arm section is provided with a main chord rod. However, the arm main chord rod of the prior art is not provided with a reinforcing and reinforcing part, and the load bearing capacity of a single main chord rod is limited. For some heavy loads, the boom of the crane is difficult to meet the working condition requirements.

[0003] Therefore, it is necessary to develop a new boom main chord rod reinforcing structure to meet the high hoisting load requirements. UTILITY MODEL CONTENT

[0004] The utility model discloses a boom main chord rod reinforcing structure, which is designed to reinforce the boom main chord rod, and a reinforcing fixed block structure composed of an intermediate plate and a side plate is arranged on the side of the main chord rod. The fixed plate is welded on the side of the main chord rod, thereby enhancing the strength and rigidity of the arm section and improving the overall stability of the boom.

[0005] Technical scheme: The utility model discloses a boom main chord rod reinforcing structure, which is characterized by comprising a boom, the boom is provided with a plurality of arm sections, each arm section is provided with a main chord rod at four corner portions, and the two ends of the main chord rod are respectively provided with a double joint and a three joint. A lining pipe is arranged at the connection position of the main chord rod and the double joint or the three joint. An intermediate plate for structural reinforcement is arranged on the side of the main chord rod, and the two ends of the intermediate plate are connected with the main chord rod through side plates.

[0006] Among them, the adjacent arm sections are connected through the double joints and the three joints at the two ends of the four main chord rods.

[0007] Among them, the double joint is inserted into the three joint.

[0008] Among them, the double joint is inserted into the three joint and connected through a connecting pin.

[0009] Among them, the intermediate plate is fixedly connected with two side plates.

[0010] Among them, the two side plates are fixedly connected with the main chord rod.

[0011] Advantages: Compared with the prior art, the utility model has the following remarkable advantages: the utility model discloses a boom main chord rod reinforcing structure, which is designed to reinforce the boom main chord rod, and a reinforcing fixed block structure composed of an intermediate plate and a side plate is arranged on the side of the main chord rod. The fixed plate is welded on the side of the main chord rod, thereby enhancing the strength and rigidity of the arm section and improving the overall stability of the boom. DRAWINGS

[0012] Figure 1 Structure diagram of arm section of prior art crane jib

[0013] Figure 2 Structure diagram of the utility model;

[0014] Figure 3 Structure diagram of main chord rod reinforcing structure of the utility model;

[0015] In the figure, 1 is a double joint; 2 is a main chord rod; 3 is an intermediate plate; 4 is a side plate; 5 is a three joint; 6 is a bushing. DETAILED DESCRIPTION

[0016] The technical scheme of the utility model will be further described below in combination with the drawings and specific embodiments.

[0017] The arm jib main chord rod reinforcing structure of the utility model comprises an arm jib, the arm jib is provided with a plurality of arm sections, a main chord rod 2 is arranged at each of the four corner portions of each arm section, a double joint 1 and a three joint 5 are arranged at the two ends of the main chord rod 2 respectively, a bushing 6 is arranged at the connection between the main chord rod 2 and the double joint 1 or the three joint 5; an intermediate plate 3 for structure reinforcement is arranged at the side of the main chord rod 2, and the two ends of the intermediate plate 3 are connected with the main chord rod 2 through a side plate 4 respectively.

[0018] Among them, the adjacent arm sections are connected through the double joints 1 and the three joints 5 at the two ends of the four main chord rods 2. The double joint 1 is inserted into the three joint 5. The double joint 1 is inserted into the three joint 5 and is connected through a connecting pin. The intermediate plate 3 is fixedly connected with the two side plates 4. The two side plates 4 are fixedly connected with the main chord rod 2.

[0019] As Figure 2 The arm jib main chord rod reinforcing structure of the utility model comprises a double joint, a main chord rod, an intermediate plate, a side plate, a three joint and a bushing, is assembled into a single arm section through the combination and assembly of the above-mentioned structural components, and is combined into an arm jib by the arm sections. After the main body of the arm section is welded and fixed, the welding work of the fixed plate block is carried out, such as Figure 3 It is a welding section view of the fixed plate on the main chord rod. The side plate welding inside the arm section is carried out first, then the side plate welding outside the arm section is carried out, and finally the intermediate plate welding work is carried out, after all the welding work is completed, the connection between the arm sections is carried out, so that the assembly work of the arm jib is completed.

[0020] The utility model carries out the reinforcing design to the arm jib main chord rod, the reinforcing fixed block structure composed of the intermediate plate and the side plate is arranged at the side of the main chord rod, the fixed plate is welded at the side of the main chord rod, the strength and rigidity capacity of the arm section are enhanced, and the overall stability of the arm jib is improved.

Claims

1. A boom main chord reinforcement structure, characterized by: The utility model discloses an arm support, which is provided with a plurality of arm sections, and a main chord (2) is arranged at four corners of each arm section, and a double joint (1) and a three joint (5) are arranged at both ends of the main chord (2) respectively, a bushing (6) is arranged at the connection between the main chord (2) and the double joint (1) or the three joint (5), and a middle plate (3) for structural reinforcement is arranged at the side of the main chord (2).

2. The jib main chord reinforcement structure of claim 1, wherein: The double joint (1) and the three joint (5) at both ends of the four main chords (2) are connected between adjacent arm sections.

3. The arm support main chord reinforcement structure of claim 2, wherein: The double joint (1) is inserted into the three joint (5).

4. The arm support main chord reinforcement structure of claim 3, wherein: The double joint (1) is inserted into the three joint (5) and connected through a connecting pin.

5. The jib main chord reinforcement structure of claim 1, wherein: The middle plate (3) is fixedly connected with two side plates (4).

6. The arm support main chord reinforcement structure of claim 5, wherein: The two side plates (4) are fixedly connected with the main chord (2).

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