bucket hook of excavator

Abstract

The invention discloses an excavator bucket hook. The excavator bucket hook comprises a mounting plate. Lug plates with shaft holes are installed at the two sides of the upper portion of the mounting plate. An arc-shaped toothed bar with bucket teeth is welded to the middle position of the bottom of the mounting plate. The inner side of an arc-shaped curved surface of the toothed bar is provided with a protecting bush through a pin shaft. A gear sleeve is installed on the upper portions of the bucket teeth through a pin shaft. A main flow guide groove is formed in the back faces of the bucket teeth. Auxiliary flow guide grooves are symmetrically formed in the two sides of the flow guide groove and obliquely extend outwards in the direction pointing to the bottom of the gear sleeve from the bottoms of the bucket teeth. Sealing edges perpendicular to the axes of the auxiliary flow guide grooves are arranged on the two side walls of the auxiliary flow guide grooves, and a gap is reserved between the two sealing edges. When the bucket teeth are cut into a soil layer, the two auxiliary flow guide grooves are symmetrically formed in the two sides of the main flow guide groove and obliquely extend outwards in the direction pointing to the bottom of the gear sleeve from the bottoms of the bucket teeth, a rectangular column and two tilted T-shaped pillars are produced on the cut-off surface of the soil layer, and sudden descending of the bucket teeth in the smashing process is avoided.

Description

Technical field [0001] The invention relates to an excavator, in particular to an excavator bucket hook. Background technique [0002] The excavator ripper is also called bucket hook, which is generally single-tooth, but also has two-tooth or three-tooth, which has strong digging cutting force. It is suitable for the crushing and splitting of hard soil, sub-hard stone and weathered stone, so as to facilitate excavation and loading operations with a bucket. Bucket teeth are a consumable part in the working process of excavators, especially the tip of the tooth, when it comes into contact with the material at high speed, the impact force is relatively strong. If the strength is relatively low, the tip of the tooth is prone to deformation, as the digging depth increases And the relative movement with the material will produce a positive squeezing force on the entire surface of the bucket teeth, especially when excavating rock-like materials, the friction between the bucket teeth an...

AI Technical Summary

Problems solved by technology

For composite strata, that is, the composite layer of concrete layer or rock layer and soil layer, the soil layer is located under the high hardness concrete layer or rock layer. When the excavator is digging, the bucket hook will reduce the tunneling efficiency

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