Mower cutting mechanism

Abstract

The invention provides a mower cutting mechanism, belongs to the garden equipment technical field, and solves the problems in the prior art that an existing mower can easily have blocking problems when a blade is worn; the mower cutting mechanism comprises a machine frame, a fixed cutter, a hobbing cutter and a drive mechanism driving the hobbing cutter to roll; the hobbing cutter comprises a hobbing cutter shaft, tool rests, and a plurality of hobbing blades; the hobbing blade is fixedly provided with a transition ring; the projection of the transition rings along the hobbing cutter shaft axial direction and the projection of the hobbing blades along the hobbing cutter shaft axial direction are respectively in an annular shape, wherein the two projections are concentric and peripheral semidiameters of both are same; the fixed cutter is arranged on the machine frame, can automatically approach to the hobbing cutter through an automatic toolsetting mechanism, and can attach to the blade portion of the hobbing cutter so as to form a shearing edge. The automatic toolsetting mechanism is compact and reasonable in structure, can automatically adjust blade gaps, and the hobbing cutter can contentiously work with no blocking in working process.

Description

technical field [0001] The invention belongs to the technical field of garden equipment, in particular to a cutting mechanism of a mower. Background technique [0002] With the development of society and economy, people's environmental awareness is getting stronger and stronger, and a large number of lawns and grasslands have entered our lives, so lawn mowers have also been widely used. The cutting mechanism of the lawn mower mainly includes a rotating hob and a fixed knife, the hob rolls up the grass, and the fixed knife cuts the weeds. [0003] Because the blade will be worn after a period of use, the blade gap between the fixed knife and the hob will increase, but if the gap is too large, the mowing effect will be unsatisfactory. Therefore, a gap adjustment mechanism is generally installed on the fixed knife. The fixed knife is tightly pulled by the spring against the hob, but due to the wear of the blade edge, the joint between the fixed blade and the hob will have ups ...

AI Technical Summary

Problems solved by technology

[0003] Because the blade will be worn after a period of use, the blade gap between the fixed knife and the hob will increase, but if the gap is too large, the mowing effect will be unsatisfactory. Therefore, a gap adjustment mechanism is generally installed on the fixed knife. The fixed knife is tightly pulled by the spring against the hob, but due to the wear of the blade edge, the joint between the fixed blade and the hob will have ups and downs, and because the fixed knife is pulled by the spring, when the fixed blade is in the It is easy to get stuck when transitioning between two adjacent hob blades

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