Multi-tooth hey knife for lawn mower

Abstract

The invention relates to a multi-tooth hey knife for a lawn mower, mainly comprising lateral multiple teeth, top teeth, end multiple teeth, wind wing blades, wind wing elliptical holes and wind wing honeycombs as well as a middle through hole, a key, a drop pit and a key slot in the knife body. The multi-tooth hey knife for a lawn mower has greatly increased blade length than a single knife by the multiple teeth and has a plurality of cutting angles and sliding cutting angles by a folded blade. Because the object to be cut is flexible, hey-missing phenomena often occur by using a single blade, and the hey-gathering capability of the folded blade is strong so as to favorably enhance the efficacy of cutting hey stalks and straw. The arched-type bottom grinding structure of a bottom blade brings the self-grinding capability and anti-wear durability, and power consumption is lessened because the multiple teeth are sharper than the single blade. The wind wing elliptical holes (28) and the wind wing honeycombs (29) on the wind wing of the knife have auxiliary effect of lowering noise.

Description

technical field [0001] The invention relates to a lawn mower blade used for mowing lawns in gardens, parks, roadsides, stadiums, etc. Multi-tooth mowers for lawn mowers. Background technique [0002] Lawn mowers are widely used to mow grass in a mode that is sometimes self-propelled and sometimes not self-propelled by people's preferences. Operate the walker to pull the self-propelled control handle, and through the wire rope and the shift lever, the clutch is clutched, so that sometimes it is self-propelled and sometimes it is not. The drive gear reduction clutch of the self-propelled mechanism of the prior art is driven by the belt pulley that is contained in the engine main shaft. While the engine spindle mowing device, such as Figure 5 .As shown in the explosion diagram of the mowing device of the main shaft of the engine, it consists of the driving pulley (11), the pad cover (12), the key (13), the knife seat (14), the original knife (15), the large pressure washer (...

AI Technical Summary

Problems solved by technology

Conventional lawn mowing devices use more and more expensive parts; they are also heavy, have a large moment of inertia, and consume more power; and the blade is rigidly connected. When encountering debris such as water pipes, it is head-to-head and there is no safety protection.

The side of the ordinary single knife has only blades but no teeth. The function is strong, so the end face of the ordinary single knife without teeth is a great loss of cutting energy

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