CN204579163U - A kind of grass-smashing reamer sheet for mower - Google Patents

Abstract

The utility model discloses a grass cutting blade for a lawn mower, which comprises a cutter body, the middle part of the cutter body has a mounting hole, the front side of each end of the cutter body has a main cutting edge, and the rear side of each end of the cutter body is provided with an upward bending There are several auxiliary cutting edges parallel to each other on the leading arc. In the utility model, the main cutting edge on the front side of the cutter body end completes the first cutting of the lawn during the rotary movement, and the cut grass moves to the secondary cutting edge along the guiding arc on the cutter body, and the secondary cutting edge The grass clippings are cut twice to make the grass clippings thinner. The grass-breaking blade of the utility model has simple structure, good grass-breaking effect, and is convenient for popularization.

Description

Grass cutting blade for lawn mower

technical field

The utility model relates to a mowing blade for a lawnmower, in particular to a grass-cutting blade capable of secondary cutting, which belongs to the technical field of garden machinery.

Background technique

The grass clippings cut by the lawn mower sometimes do not need to be collected, and are directly sprinkled on the lawn as fertilizer. However, due to the large grass clippings cut at one time, it will directly cover the lawn and affect the growth of the grass, and the large piles of grass clippings will often cause the lawn to rot and die during the decay process, which is not conducive to lawn maintenance.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies of the prior art, and provide a grass cutting blade for a lawn mower, so as to realize the secondary cutting of the grass clippings, so that the grass cuttings are thinned and sprinkled evenly.

The grass cutting blade used for lawn mowers of the utility model includes a cutter body, the middle part of the cutter body has a mounting hole, the front side of each end of the cutter body has a main cutting edge, and the rear side of each end of the cutter body is provided with an upwardly curved guiding arc. , There are a number of auxiliary cutting edges parallel to each other on the leading arc.

In the above technical solution, the angle between the secondary cutting edge and the cutter body is usually 100°-160°.

The cutter body in the utility model can be fixedly installed on the output shaft of the motor or the rotating shaft of the cutter seat through the mounting hole, and the shaft drives the cutter body to rotate at high speed, and the main cutting edge on the front side of the cutter body completes the cutting of the lawn during the rotating motion. For the first cutting, the cut grass clippings move along the guide arc on the cutter body to the secondary cutting edge, and the secondary cutting edge cuts the grass clippings twice to make the grass clippings thinner. The grass-breaking blade of the utility model has simple structure, good grass-breaking effect, and is convenient for popularization.

Description of drawings

Fig. 1 is a structural schematic diagram of a grass cutting blade.

Fig. 2 is an enlarged schematic view of the end structure of the blade for cutting grass.

Detailed ways

With reference to Fig. 1 and Fig. 2, the cutting grass blade that is used for lawnmower of the present utility model comprises cutter body 3, and the middle part of cutter body 3 has mounting hole 4, and the front side of each end of cutter body has main cutting edge 2, and cutter body The rear side of each end is provided with an upwardly curved guide arc 5 , and a number of parallel minor cutting edges 1 are provided on the guide arc 5 .

In order to obtain a better grass cutting effect, the angle between the secondary cutting edge 1 and the cutter body 3 is 100°-160°.

The grass cutting blade can be installed on the output shaft of the motor or the rotating shaft of the cutter holder through the mounting hole in the middle, the shaft drives the cutter body to rotate at high speed, and the main cutting edge located at the front side of the cutter body end completes the alignment during the rotating motion. For lawn cutting, the cut grass clippings are discharged to the rear side of the end of the cutter body under the action of the guiding arc, and when passing through the secondary cutting edge, they are cut again by the secondary cutting edge, so that the longer grass clippings are further broken and refined , It is conducive to the even distribution of grass clippings, and the fine grass clippings will directly pass through the lawn and fall on the ground, providing nutrients to the lawn after decay, which is conducive to the maintenance of the lawn.

Claims (2)

1. the grass-smashing reamer sheet for mower, it is characterized in that comprising cutter hub (3), cutter hub (3) middle part has installing hole (4), the front side of the every one end of cutter hub (3) has main cutting edge (2), the rear side that cutter hub is often held is provided with the pilot arc (5) be bent upwards, and pilot arc (5) is provided with some front cutting edges (1) be parallel to each other.

2. the grass-smashing reamer sheet for mower according to claim 1, is characterized in that the angle between described front cutting edge (1) and cutter hub (3) is 100 °-160 °.