A skeleton type stick and excavator

Abstract

The invention discloses a framework type bucket rod and an excavator, and belongs to the field of machinery manufacturing. The framework type bucket rod comprises a center supporting base 2, a middle support 4, a front support 5, an oil cylinder supporting base, a plurality of main pipes 7 and a plurality of branches pipes 8, wherein the center supporting base 2 is connected with the middle support 4, the middle support 4 is connected with the front support 5, the center supporting base 2 is connected with the oil cylinder supporting base, the oil cylinder supporting base is connected with the front support 5, the center supporting base 2 is respectively connected with the middle support 4 and the oil cylinder supporting base through the main pipes 7, the middle support 4 and the oil cylinder supporting base are respectively connected with the front support 5 through the main pipes 7, and the main pipes 7 are connected through the branch pipes 8. According to the technical scheme utilized by the invention, a hollow framework type structure formed by pipes is utilized, thus the welding operation amount is greatly reduced, full painting is realized, and the influence on products due to corrosion can be reduced.

Description

technical field [0001] The invention belongs to the field of mechanical equipment manufacturing, and relates to a stick, in particular to a skeleton-type stick for an excavator. Background technique [0002] Among the current construction machinery, the use of excavators has been greatly promoted and applied. In the known excavator buckets, the main structural parts are all made of steel plates, and most of them are closed box structures, and a few of them are open-hole boxes; the pipeline layout is fixed by wire clamps, pipe clamps, etc. Clips, etc. need to be welded inside and outside the box. [0003] The problems existing in the existing structure are: the overall welding volume of the steel plate structure stick is relatively large, and it is difficult to achieve full penetration inside the closed box, and partial incomplete penetration of long fillet welds will seriously affect the fatigue life; and because the inside of the box cannot Paint, easy to rust, affects pr...

AI Technical Summary

Problems solved by technology

[0003] The problems existing in the existing structure are: the overall welding volume of the steel plate structure stick is relatively large, and it is difficult to achieve full penetration inside the closed box, and partial incomplete penetration of long fillet welds will seriously affect the fatigue life; and because the inside of the box cannot Paint, easy to rust, affects product life; wire clamps, pipe clamps, etc. are fixed by welding, which increases extra workload, and the fixing fixture is not easy to repair after failure

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