Basic arm rack assembly tooling of dynamic compactor

Abstract

The invention discloses a basic arm rack assembly tooling of a dynamic compactor. The basic arm rack assembly tooling comprises a bottom rack, a column of limit stand columns which are vertically mounted on one side of the bottom rack, and at least two transverse beams which are horizontally mounted on the upper surface of the bottom rack, wherein the heights of the limit stand columns sequentially decrease from left to right relative to the bottom rack,; a horizontal pin shaft is mounted at the top end of each limit stand column; the axial direction of each pin shaft is the same as the length direction of the bottom rack; a holding hook is fixedly mounted on each pin shaft. The transverse beams, the limit stand columns and the holding hooks are positioned as three chord rods of basic arm racks, and after the positions of the three chord rods are determined, the angles and the positions of the web rods can be obtained through measurement; another chord rod is welded to the fixed web rods, so that the assembled welding of the basic arm racks is completed. Through the adoption of the basic arm rack assembly tooling, the assembled welding efficiency can be effectively improved; the interchangeability of the basic arm racks is improved; the maintenance cost of the dynamic compactor is reduced; the straightness accuracy, and the entirely assembling diagonal lines and angles of the basic arm racks of the basic arm racks are improved; the dependence on skills of workers is reduced, and the assembled welding precision is improved.

Description

technical field [0001] The invention relates to the technical field of dynamic tamping machine assembly, in particular to a tool for assembling a foundation arm frame of a dynamic tamping machine. Background technique [0002] With the development of large-scale and gigantic industrial projects, in terms of equipment manufacturing and engineering installation, the requirements for the allowable lifting quality of cranes are gradually increasing. Cranes or dynamic compactors use the boom as a supporting structure. However, with the lifting quality With the improvement of boom strength, the requirements for the strength of the boom are getting higher and higher, and the weight of the boom itself is also gradually increasing, which limits the improvement of the lifting quality of cranes or dynamic compaction machines to a certain extent. For this reason, some large-scale cranes and dynamic compaction machines Both began to adopt the steel truss boom structure. On the one hand, ...

AI Technical Summary

Problems solved by technology

[0003] The basic jib of a general steel truss boom consists of four chords in the shape of a square truss and a web fixedly welded between the four chords. In the specific installation process, manual assembly is basically used at present. In this way, there are disadvantages such as out-of-tolerance boom straightness, out-of-tolerance overall assembly diagonal, incorrect angle, assembly deviation, non-interchangeability, low production efficiency, and high skill requirements for workers during production. When the pairing of connectors is seriously affected, it will lead to scrapping and waste of raw materials

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