Portable Lawn Mower

Abstract

The invention discloses a portable grass remover. The portable grass remover comprises an armrest frame, an engine, a clutch and a cutter, wherein the clutch is a centrifugal clutch; a flail block in the centrifugal clutch is fixed in a driven cup through a flail block support; a driven cup is fixed in the driven cup support; the flail block is connected with a crankshaft of the engine; a transmission shaft consists of a transmission shaft I and a transmission shaft II; two ends of the transmission shaft I are respectively connected with the driven cup of the centrifugal clutch and a driving bevel gear wheel arranged in a gearbox; a driven bevel gear wheel fixed to the transmission shaft II is meshed with the driving bevel gear wheel on the transmission shaft I; the lower end of the transmission shaft II is fixedly connected with a moving cutter disc; a moving blade on the moving cutter disc is movably matched with a fixed blade fixed to the flange of the bottom end of the gearbox; the moving cutter disc is fixedly provided with a spike tooth guide seat; the lower end of a spike tooth penetrates through the spike tooth guide seat and the moving cutter disc; the upper end of the spike tooth is abutted against a cam connected to a middle partition of the gearbox; the upper end of the spike tooth is connected with a spike tooth spring seat; a spike tooth spring is arranged between the spike tooth spring seat and the upper end face of the moving cutter.

Description

technical field [0001] The invention relates to a weeding machine, in particular to a portable weeding machine based on telescopic spike teeth. Background technique [0002] At present, portable lawn mowers mainly have the following forms: a nylon rope is fixed on the high-speed rotating disc, and the inertial force of the rotating nylon rope is used to mow the grass; a blade is fixed on the high-speed rotating disc, which is a single disc structure. ; There are also ways to use circular saw blades, etc. From the point of view of cutting principle, the above types are single-disc structures, which belong to unsupported cutting, and mainly rely on the high-speed rotation of the blade to achieve cutting. From the analysis of the working principle, the above lawn mower has no parts that go into the soil, and can only cut the stems of weeds above the ground. It can be used for lawn trimming, etc. Although it can control the growth of weeds, it cannot completely kill weeds. Con...

AI Technical Summary

Problems solved by technology

From the analysis of the working principle, the above lawn mower has no parts that go into the soil, and can only cut the stems of weeds above the ground. It can be used for lawn trimming, etc. Although it can control the growth of weeds, it cannot completely kill weeds. Continue to grow, therefore, the effect of weeding in the field is not ideal

Field weeding machines usually use a weeding machine with a cultivator and a weeding shovel. Although it can kill weed roots, it consumes a lot of power. It is only suitable for field weeding on large plots, and is not suitable for small plots in hilly or mountainous areas.

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