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Bucket rod of excavator

A technology for excavators and sticks, which is applied in the direction of mechanically driven excavators/dredgers, etc., can solve the problems of complex casting structure, difficult pouring and molding, and high cost of mold opening, so as to achieve uniform stress distribution, reduce weight, and improve The effect of stick strength

Active Publication Date: 2012-07-11
SINOMACH CHANGLIN CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for lightweight design, the casting structure is very complicated, casting and molding is more difficult, and the cost of mold opening is also high

Method used

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  • Bucket rod of excavator
  • Bucket rod of excavator
  • Bucket rod of excavator

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] See Figure 1 to Figure 5 , this embodiment includes a stick main body composed of two side plates and surrounding plates enveloping the outer peripheries of the two side plates. A pair of bucket cylinder supports 2 and a pair of ear plates 6 are arranged on the main body of the arm. The two side plates are respectively welded by the front side plate 12, the middle side plate 11 and the rear side plate 7, wherein the rear side plate 7 is a special-shaped plate (see Figure 6 ), the profile surface at the back includes an upper plane 7a, a middle plane 7b and a lower plane 7c, and the upper plane 7a and the middle plane 7b, and the middle plane 7b and the lower plane 7c are connected by curved surfaces.

[0031] The coaming plate is welded by the upper cover plate 1, the bent plate 5 and the lower cover plate 8, the weld h1 between the upper cover plate 1 and the bent plate 5 corresponds to the middle part of the plane 7a on the rear side plate, and the bent plate 5 Th...

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Abstract

The invention discloses a bucket rod of an excavator. The bucket rod comprises a bucket rod main body consisting of two side plates and a surrounding plate; the bucket rod main body is provided with a pair of bucket cylinder supports and a pair of lug plates; each of the two side plates is formed by welding a front side plate, a middle side plate and a rear side plate; the surrounding plate is formed by welding an upper cover plate, a bent plate and a lower cover plate; the seam between the upper cover plate and the bent plate is opposite to the middle part of the upper plane of the rear side plate, and the seam between the bent plate and the lower cover plate is opposite to the lower part of the middle plane of the rear side plate; and a horizontal reinforcing plate is arranged between the two bucket cylinder supports and the two lug plates, an I type vertical reinforcing plate is welded on the upper cover plate and between the two bucket cylinder supports, and an II type vertical reinforcing plate is welded on the bent plate and between the two lug plates. Under equal conditions, the average stress of the bucket rod is low, the stress distribution of the bucket rod is uniform, and the strength of the bucket rod is improved; and by properly reducing the thickness of a part of plate, the bucket rod is lightened.

Description

technical field [0001] The present invention relates to excavator components. Background technique [0002] The long arm connected to the bucket on the excavator is usually called the stick. The stick is one of the main bearing parts of the excavator and needs to have sufficient strength. The connection between the components of the stick is mainly welded. The utility model patent with the Chinese Patent Publication No. CN201924383U discloses an upper lug structure on the arm of an excavator, including the arm and an upper lug, the upper lug is at the rear end of the arm; the front of the upper lug is attached to the arm On the upper cover of the stick, the rear part is bent towards the side cover of the stick. The rear end of the upper ear plate has a rear ear seat for supporting the upper ear plate, and the rear ear seat is on the side cover plate of the bucket rod. The front end of the upper lug extends below the bucket cylinder. The above-mentioned utility model only ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02F3/38
Inventor 袁元刘浩王辉
Owner SINOMACH CHANGLIN CO LTD
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