A non-integrated rotary halved saw

Abstract

The invention discloses a non-integrated rotating hemisecting saw. A first output shaft is sleeved with a second output shaft and is coaxial with the second output shaft, the second output shaft can rotate relative to the axial direction of the first output shaft, a first ratchet is arranged on the end surface of one end, close to an inner saw blade, of the second output shaft, the inner saw blade is fixed on an inner flange, a second ratchet matched with the first ratchet is arranged on the inner flange, an elastic body is further arranged between the inner flange and the second output shaft, and the inner saw blade is closely attached to an outer saw blade. The saw has the advantages as follows: the ratchet on the second output shaft and the ratchet on the inner flange are flexibly meshed with each other by the aid of the friction force produced by the elastic body, meanwhile, the elastic body axially pushes the inner flange to slightly press and abut against the inner saw blade, and the inner saw blade and the outer saw blade are closely attached to each other, so that problems of collision abnormal noises and vibration of ratchets during matching of existing ratchets are solved, and the problem that saw blades bifurcate easily due to cut materials at the moment that a machine is started when the saw blades make contact with the cut materials before the machine is started is further solved.

Description

Technical field [0001] The invention relates to a non-integrated rotary butt saw. Background technique [0002] The rotary counter saw is to drive the outer saw blade and the inner saw blade at the same time by driving the concentric output shaft of the transmission device. One rotates in a clockwise direction and the other rotates in a counterclockwise direction, thereby generating opposite rotating cutting motion. Since the cutting directions of the outer saw blade and the inner saw blade are opposite, the outer saw blade and the inner saw blade can balance the reaction force of the material to be cut during cutting to realize smooth and rapid cutting. [0003] Under the existing technical conditions, the transmission device of the non-integrated rotary butt saw blade, due to the limitation of the inner saw blade compression structure, the rotary butt saw blades manufactured at home and abroad use the inner saw blade and the outer saw blade. A wear-resistant ring or wear-resista...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a non-integrated rotary counter-cut saw, which can effectively solve the problem of having to leave a gap between the ratchets when the wear of the wear-resistant ring or the wear-resistant boss needs to be compensated for in the existing ratchet cooperation. A certain amount of axial clearance produces collision noise and vibration between the ratchet teeth, and also solves the problem that the saw blade contacts the cutting material before the machine is started, and the cutting material is easy to cause the saw blade to fork when the machine is turned on.

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