Saw chain for felling saw

Abstract

The invention discloses a saw chain for a felling saw. The saw chain comprises connecting chain links and a cutting chain link which are connected through driving sheets, wherein the driving sheets are rotationally connected with the connecting chain links and the cutting chain link through rivets respectively, and the cutting chain link comprises a left cutting chain link body and a right cutting chain link body which are alternately arranged; the left cutting chain link body comprises a primary connecting sheet, a secondary connecting sheet, a connecting part connected between the primary connecting sheet and the secondary connecting sheet, a cutting blade which is connected on the primary connecting sheet and away from one side of the connecting part and a limiting head integrally connected on the primary connecting sheet and located front of the cutting blade, and a gap is formed between the limiting head and the cutting blade; the left cutting chain link body is punched and formed through a complete metal sheet. The saw chain is ingenious in saw chain structure, high in strength, high in cutting speed and relatively long in service life.

Description

technical field [0001] The invention belongs to the field of electric logging saws, and in particular relates to a chain structure of the logging saw. Background technique [0002] The sawing chain of the existing common logging saw includes a connecting chain link, a left cutting chain link and a right cutting chain link, and the left cutting chain link and the right cutting chain link are arranged alternately, and the adjacent left cutting chain link and the right cutting chain link There is a connecting chain link between them, and the adjacent chain links are connected by driving pieces and rivets; the general cutting chain link includes two connecting pieces, one of which is integrally connected with a generally L-shaped cutting blade, And the end of the blade at the front end of the cutting blade protrudes slightly forward. At the moment when the blade contacts the object to be cut, the cutting blade is subjected to a force opposite to the cutting direction, and a comp...

AI Technical Summary

Problems solved by technology

[0002] The sawing chain of the existing common logging saw includes a connecting chain link, a left cutting chain link and a right cutting chain link, and the left cutting chain link and the right cutting chain link are arranged alternately, and the adjacent left cutting chain link and the right cutting chain link There is a connecting chain link between them, and the adjacent chain links are connected by driving pieces and rivets; the general cutting chain link includes two connecting pieces, one of which is integrally connected with a generally L-shaped cutting blade, And the end of the blade at the front end of the cutting blade protrudes slightly forward. At the moment when the blade contacts the object to be cut, the cutting blade is subjected to a force opposite to the cutting direction, and a component of the force will produce a radial force on the rivet. The shear force, the other component force will produce axial tension on the rivet, which will cause pressure between the rivet head and the connecting piece, and loosen the contact part between the rivet head and the connecting piece. After the rivet and the connecting piece are loose, due to the connecting piece The position of the rivet moves to different degrees, and the shear resistance of the rivet also decreases. The rivet is especially stressed on the side close to the cutting blade, which is prone to strain or even breakage, and there is a big safety hazard.

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