Joint positioning structure for truss arm

Abstract

The utility model discloses a joint positioning structure for a truss arm, which comprises a fixed three-dimensional flexible universal platform, a connecting structure is arranged on the fixed three-dimensional flexible universal platform, the connecting structure is connected with an expansion structure, and the fixed three-dimensional flexible universal platform is connected with the truss arm through a pin shaft penetrating through the connecting structure; and a plurality of hole bodies matched with the sectional dimension of the truss arm are formed in the lower plate of the expansion structure. An existing connector structure is improved, the applicability is improved, the use efficiency of the truss arm is improved, and meanwhile the box splicing quality of the truss arm is improved.

Description

Technical Field

[0001] The utility model relates to the field of truss arms, in particular to a joint positioning structure for truss arms. Background Art

[0002] Truss components are the main components of lifting machinery. Among them, the structure of special-shaped truss arms is relatively complex, the quality is difficult to control, and the production efficiency is low. Under the premise of ensuring safety, how to control the quality of the special-shaped truss arms and how to improve the production efficiency of special-shaped truss arms have become common problems faced by the field of engineering lifting machinery.

[0003] When using existing truss booms, the assembly of the truss boom assembly is controlled by a fixed three-dimensional flexible universal platform + joint positioning structure + pin. The joint positioning structure is installed on the fixed three-dimensional flexible universal platform according to the assembly requirements, and then the pin is inserted during the assembly process to complete the assembly of the truss boom. The existing joint positioning structure is a fixed structure with low versatility. Due to the limitations of the joint positioning structure, when the joint aperture and joint thickness of the truss boom assembly are the same, but the cross-sectional dimensions of the assembly are different, a corresponding joint positioning structure must be added. This complicated operation affects the efficiency of the truss boom and reduces the quality of the truss boom assembly.

[0004] Therefore, it is necessary to develop a new type of joint positioning structure in a targeted manner to improve the applicability and increase the efficiency of the truss arm. Utility Model Content

[0005] Purpose of the utility model: In view of the deficiencies and defects of the existing technology, the utility model provides a joint positioning structure for a truss arm, improves the existing joint structure, improves the applicability, improves the efficiency of the use of the truss arm, and at the same time improves the quality of the truss arm's consolidation.

[0006] Technical solution: The utility model is a joint positioning structure for a truss arm, which is characterized by: including a fixed three-dimensional flexible universal platform, a connecting structure is provided on the fixed three-dimensional flexible universal platform, the connecting structure is connected to the expansion structure, and the fixed three-dimensional flexible universal platform is connected to the truss arm through a pin shaft passing through the connecting structure; the lower plate of the expansion structure is provided with a plurality of holes that match the cross-sectional dimensions of the truss arm.

[0007] Wherein, the connection structure is a T-shaped structure, including a vertical connection main board and a horizontal connection bottom board.

[0008] Wherein, the connecting main plate of the connecting structure is provided with a pin shaft hole, and the side of the connecting main plate is provided with a plurality of side plates with holes.

[0009] Wherein, the connection bottom plate of the connection structure is provided with a plurality of connection holes.

[0010] Wherein, the upper plate of the expansion structure is connected to the connection structure.

[0011] Wherein, the lower plate of the expansion structure is provided with two rows of holes matching the cross-sectional dimensions of the truss arms.

[0012] The two rows of holes having cross-sectional dimensions matching the truss arms are symmetrically arranged.

[0013] Beneficial effects: Compared with the prior art, the utility model has the following significant advantages: the utility model improves the existing joint structure, improves applicability, improves the utilization efficiency of the truss arm, and improves the quality of the truss arm's consolidation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the existing truss arm assembly assembly positioning structure;

[0015] Figure 2 Schematic diagram of the joint positioning structure for the existing truss arm;

[0016] Figure 3 This is a schematic diagram of the truss arm assembly positioning structure of the utility model;

[0017] Figure 4 This is a schematic diagram of a joint positioning structure for a truss arm of the present invention;

[0018] In the figure, 1 is a fixed three-dimensional flexible universal platform; 2 is a connecting structure; 3 is an expansion structure; and 4 is a pin. DETAILED DESCRIPTION

[0019] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0020] The joint positioning structure for a truss arm of the utility model includes a fixed three-dimensional flexible universal platform 1, a connecting structure 2 is provided on the fixed three-dimensional flexible universal platform 1, the connecting structure 2 is connected to the expansion structure 3, and the fixed three-dimensional flexible universal platform 1 is connected to the truss arm through a pin shaft 4 passing through the connecting structure 2; the lower plate of the expansion structure 3 is provided with a plurality of holes with cross-sectional dimensions matching the truss arm.

[0021] The connecting structure 2 of the present invention is a T-shaped structure, comprising a vertical connecting main plate and a horizontal connecting bottom plate. The connecting main plate of the connecting structure 2 is provided with a pin hole, and the sides of the connecting main plate are provided with several side plates with holes. The connecting bottom plate of the connecting structure 2 is provided with several connecting holes. The upper plate of the expansion structure 3 is connected to the connecting structure 2. The lower plate of the expansion structure 3 is provided with two rows of holes that match the cross-sectional dimensions of the truss arm. The two rows of holes that match the cross-sectional dimensions of the truss arm are symmetrically arranged.

[0022] This new truss boom structure utilizes an innovative design consisting of a fixed three-dimensional platform, a connecting structure 2, an expansion structure 3, and a pin 4. Following the assembly requirements for the truss boom assembly, the connecting structure 2 is mounted on the fixed three-dimensional flexible universal platform 1, followed by the expansion structure 3. Finally, the pin is threaded during assembly, completing the assembly process for the truss boom assembly.

[0023] The distance between the center planes of the fixed three-dimensional platform holes is 50mm. The wall thickness and hole diameter of the existing connection structure 2 meet the requirements of the new truss arm assembly, but do not match the cross-sectional dimensions of the new truss arm. The design of the expansion structure 3 makes it meet the requirements of the truss arm with the same joint form and the cross-sectional dimensions of 50mm, 100mm and integer multiples of 200mm.

[0024] The joint positioning structure designed in this utility model is applicable and can be used with new boom joints whose center-to-center widths are integer multiples of 50, 100, and 200. This can shorten the procurement cycle for new tooling by 10 days and the design time for process engineers by 16 hours, significantly shortening the boom manufacturing cycle.

Claims

1. A truss arm joint positioning structure, characterized in that: The invention comprises a fixed three-dimensional flexible universal platform (1), a connecting structure (2) is provided on the fixed three-dimensional flexible universal platform (1), the connecting structure (2) is connected to an expansion structure (3), and the fixed three-dimensional flexible universal platform (1) is connected to a truss arm via a pin (4) passing through the connecting structure (2); a lower plate of the expansion structure (3) is provided with a plurality of holes having a cross-sectional size matching that of the truss arm.

2. The truss arm joint positioning structure according to claim 1, wherein: The connection structure (2) is a T-shaped structure, comprising a vertical connection main plate and a horizontal connection bottom plate.

3. The truss arm joint positioning structure according to claim 2, wherein: The connecting main plate of the connecting structure (2) is provided with a pin shaft hole, and the side of the connecting main plate is provided with a plurality of side plates with holes.

4. The truss arm joint positioning structure according to claim 3, characterized in that: The connection bottom plate of the connection structure (2) is provided with a plurality of connection holes.

5. The truss arm joint positioning structure according to claim 1, wherein: The upper plate of the expansion structure (3) is connected to the connection structure (2).

6. The truss arm joint positioning structure according to claim 5, characterized in that: The lower plate of the expansion structure (3) is provided with two rows of holes having cross-sectional dimensions matching those of the truss arms.

7. The truss arm joint positioning structure according to claim 6, characterized in that: The two rows of holes having cross-sectional dimensions matching the truss arms are symmetrically arranged.

Images