Truss arm with reinforcing structure

Abstract

The utility model discloses a truss arm with reinforcing structures, which is characterized in that the reinforcing structures are arranged on two sides of the truss arm, and the truss arm forms a main body frame through an arm frame main chord member, an arm frame diagonal web member, an arm frame joint, a transverse web member II and a main chord member III; the reinforcing structures on the two sides of the truss arm comprise first reinforcing structures on the side portions of the two ends of the main body frame and second reinforcing structures on the side portion of the middle of the main body frame. The first reinforcing structures and third connectors form a triangular structure through first connectors, diagonal web members, first main chord members, second connectors, first transverse web members. And the reinforcing structure II comprises a main chord member II, a web member and a joint IV. The cantilever crane has expansibility, the performance of the truss arm can be enhanced in the later period, and the loading capacity of an existing cantilever crane can be remarkably improved.

Description

Technical Field

[0001] The utility model relates to the field of crawler cranes, in particular to a truss arm with a reinforced structure. Background Art

[0002] As an important component of crawler cranes, lattice booms are mainly used to meet the crane's lifting needs for long distances and high heights. Currently, the technology of lattice booms has become increasingly mature.

[0003] When used as a load-bearing component, the truss structure has the characteristics of light weight, high load-bearing capacity, and easy processing. The truss arm formed by welding technology has the advantages of high strength and easy processing. However, once the welding is processed and formed, it is difficult to improve the load-bearing capacity of the arm in the later stage.

[0004] Therefore, it is necessary to develop a truss arm with a reinforced structure in a targeted manner to facilitate the subsequent enhancement of the truss arm performance. Utility Model Content

[0005] Purpose of the utility model: In view of the shortcomings and defects of the prior art, the utility model provides a truss arm with a reinforced structure, which is expandable, convenient for later strengthening of the truss arm performance, and can significantly improve the load capacity of the existing arm.

[0006] Technical solution: The utility model provides a truss arm with a reinforced structure, characterized in that: reinforced structures are arranged on both sides of the truss arm, and the truss arm forms a main frame through an arm main chord, an arm diagonal web, an arm joint, a second transverse web, and a third main chord; the reinforced structures on both sides of the truss arm include a reinforced structure 1 on the sides of both ends of the main frame and a reinforced structure 2 on the sides of the middle part of the main frame, and the reinforced structure 1 forms a triangular structure through a joint 1, a diagonal web, a main chord 1, a joint 2, a first transverse web, and a joint 3; the reinforced structure 2 includes a second main chord, a web, and a fourth joint.

[0007] Among them, the truss arm includes several groups of arm main chords, the arm main chords in the same group are connected by several arm diagonal webs, the ends of the arm main chords in the same group are connected by two transverse webs, and the two groups of arm main chords are connected by an arm joint.

[0008] Among them, the reinforcement structure 1 is connected to the truss arm main frame or the reinforcement structure 2 through joint 1, joint 2 and joint 3.

[0009] Wherein, the joint 1, the joint 2 and the joint 3 are all connected by a pin.

[0010] Wherein, the main chord rod 2 and the web rod are both provided with joint 4.

[0011] Among them, the main chord rod 2 and the web rod are connected to the truss arm main frame or the reinforcement structure 1 through the joint 4.

[0012] Wherein, the joints are connected at four locations by pins.

[0013] Beneficial effects: Compared with the prior art, the utility model has the following significant advantages: the utility model is scalable, which is convenient for strengthening the performance of the truss arm in the later stage and can significantly improve the load capacity of the existing arm. At the same time, it is convenient to install, transport and store. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a truss arm of the prior art;

[0015] Figure 2 It is a structural schematic diagram of a boom section of a single truss structure in the prior art;

[0016] Figure 3 It is a schematic diagram of the top view structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 5 It is a three-dimensional structural schematic diagram of the utility model;

[0019] In the figure, 1 is joint one; 2 is diagonal web member; 3 is main chord member one; 4 is joint two; 5 is transverse web member one; 6 is joint three; 7 is main chord member two; 8 is web member; 9 is joint four; 10 is main chord member of boom; 11 is diagonal web member of boom; 12 is boom joint; 13 is transverse web member two; 14 is main chord member three. DETAILED DESCRIPTION

[0020] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0021] like Figure 3 , joint 1, diagonal web 2, main chord 1 3, joint 2 4, transverse web 1 5, joint 3 6 are welded to form an independent structure, and are assembled and connected with the boom and other reinforcing structures through pins at joint 1, joint 2 4, and joint 3 6. Main chord 2 7 and web 8 are welded and welded with their respective joints, and then assembled and connected with the boom and other reinforcing structures through pins. The boom main chord 10, boom diagonal web 11, boom joint 12, transverse web 2 13 and main chord 3 14 are welded to form an independent boom structure as the main body, which is assembled and connected with the reinforcing structure on the left and right sides through pins as shown in the figure, and assembled and connected with other boom sections through pins up and down.

[0022] Reinforcement devices are added on the left and right sides of the truss arm. The reinforcement devices are designed to be symmetrical on both sides. The reinforcement devices are connected to the existing truss arm through the joints 6 and the main chord 14 joints and welded pipes. After the connection, as shown in the figure above, the cross-sectional width of the arm is greatly increased, and the rigidity of the arm in the width direction is greatly improved. The reinforcement devices are connected by joint pins. The reinforcement device of a single arm section is an independent part and can be transported or stored as a whole.

[0023] like Figure 4 The joint 1, diagonal web member 2, main chord member 3 and joint 2 4 of the reinforcement device are fixed into a whole by welding, and then connected with the middle truss arm by a pin.

[0024] The utility model has the advantages of expandability, which is convenient for strengthening the performance of the truss arm in the later stage, and can significantly improve the load capacity of the existing arm. At the same time, it is convenient to install, transport and store.

Claims

1. A truss arm with a reinforced structure, characterized in that: Reinforcement structures are arranged on both sides of the truss arm. The truss arm is composed of a main chord (10) of the arm, an inclined web (11) of the arm, an arm joint (12), a second transverse web (13) and a third main chord (14) to form a main frame. The reinforcement structures on both sides of the truss arm include a reinforcement structure 1 on the sides of both ends of the main frame and a reinforcement structure 2 on the sides of the middle of the main frame. The reinforcement structure 1 is composed of a joint 1 (1), an inclined web (2), a main chord 1 (3), a joint 2 (4), a first transverse web (5) and a joint 3 (6) to form a triangular structure. The reinforcement structure 2 includes a second main chord (7), a web (8) and a joint 4 (9).

2. The truss arm with a reinforcement structure according to claim 1, characterized in that: The truss arm comprises a plurality of groups of arm main chords (10), the arm main chords (10) in the same group are connected via a plurality of arm diagonal webs (11), the ends of the arm main chords (10) in the same group are connected via a second transverse web (13), and the two groups of arm main chords (10) are connected via an arm joint (12).

3. The truss arm with a reinforcement structure according to claim 1, characterized in that: The reinforcement structure 1 is connected to the truss arm main frame or the reinforcement structure 2 through joint 1 (1), joint 2 (4) and joint 3 (6).

4. The truss arm with a reinforcement structure according to claim 3, characterized in that: The joint 1 (1), the joint 2 (4) and the joint 3 (6) are all connected by a pin.

5. The truss arm with a reinforcement structure according to claim 1, characterized in that: The main chord rod 2 (7) and the web rod (8) are both provided with a joint 4 (9).

6. The truss arm with a reinforcement structure according to claim 5, characterized in that: The main chord rod 2 (7) and the web rod (8) are connected to the truss arm main frame or the reinforcement structure 1 through the joint 4 (9).

7. The truss arm with a reinforcement structure according to claim 6, characterized in that: The joint four (9) is connected via a pin.

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