Rotary blade with straw cutting structure

Abstract

The invention discloses a rotary blade with a grass cutting structure, which comprises a handle and a blade which are integrated, the handle is provided with a mounting groove and a mounting hole, the two side surfaces of the blade are respectively a blade back and a blade edge, the front end of the blade is provided with a cutting part, the edge of the blade back or the blade edge is provided with a grass cutting sheet, and the end part of the handle is provided with a bending part. The arc-shaped structure of the rotary blade can obviously reduce resistance when the rotary blade enters the soil for operation, the wave teeth can cut off weeds or straws more quickly, the situation that the weeds or straws are wound around the blade shaft to affect the ploughing efficiency is avoided, the arranged grass cutting pieces can cut off or hinge off the weeds or straws which cannot be cut off by the blades, and the broken weeds or straws can be pressed into the soil in the rotary tillage process, so that the rotary tillage efficiency is improved. And the bent part can turn over the shallow soil, press the chopped weeds into the soil, enable the chopped weeds to be uniformly mixed with the soil, accelerate decomposition and provide support, so that the situation that a mounting carrier cutter head and a cutter shaft of the rotary blade sink into the soil to affect the ploughing efficiency is avoided.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, specifically to a rotary tiller blade with a grass-cutting structure. Background Technology

[0002] Currently, the rotary tillers used on existing rotary tillers generally have spirally curved, long, strip-shaped plate-like components, including the handle and the blade. The outer arc edge of the blade is the working edge, which has strong soil penetration and good soil breaking effect. It is particularly suitable for the initial deep tillage in areas with a lot of weeds and hard soil. However, in actual operation, weeds are easily entangled on the blades. After weeds get entangled, it will not only reduce the rotary tillage efficiency and cause the operation to be interrupted, but may also damage the mechanical power system due to increased load, increasing maintenance costs and time loss. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a rotary tiller with a grass-cutting structure, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a rotary tiller with a grass-cutting structure, comprising an integrated handle and a blade, wherein the handle is provided with a mounting groove and a mounting hole, the two sides of the blade are respectively a back and a cutting edge, the front end of the blade is provided with a cutting part, the edge of the back or the cutting edge is provided with a grass-cutting blade, and the end of the handle is provided with a bending part.

[0005] As a preferred embodiment of the present invention, the grass cutting blade is integrally bent into shape with a protrusion provided on the back or edge of the blade.

[0006] As a preferred embodiment of the present invention, the grass cutting blade is installed on the back of the blade or the edge of the blade by means of screwing or welding.

[0007] As a preferred embodiment of the present invention, the back of the blade or the edge of the blade is provided with wavy teeth.

[0008] As a preferred embodiment of the present invention, the edge of the bent portion is provided with wavy teeth.

[0009] As a preferred embodiment of the present invention, the shape of the grass cutting pieces includes, but is not limited to, one of the following: triangle, rectangle, pentagon, hexagon, or arc.

[0010] As a preferred embodiment of the present invention, the edge of the grass cutting blade is provided with wavy teeth.

[0011] As a preferred embodiment of the present invention, the edges of the grass cutting blade are sharpened.

[0012] As a preferred embodiment of the present invention, the blade edge is sharpened.

[0013] As a preferred embodiment of the present invention, the blade is arc-shaped, with the protruding side being the cutting edge, the concave side being the back of the blade, and the cutting portion being warped.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the arc-shaped structure of the rotary tiller blade can significantly reduce resistance when entering the soil; the wave-shaped teeth can cut weeds or straw more quickly, avoiding entanglement of the blade shaft and affecting tillage efficiency; the grass-cutting blade can cut or sever weeds or straw that the blade cannot cut; and it can also press the broken weeds or straw into the soil during rotary tillage, so that it is evenly mixed with the soil; the bending part can turn over the shallow soil, press the chopped weeds into the soil, so that it is evenly mixed with the soil, accelerates decomposition, and also provides support to prevent the rotary tiller blade from sinking too deep in the soft soil environment, thereby preventing the rotary tiller blade mounting carrier, the blade disc and the blade shaft from sinking into the soil and affecting tillage efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the multi-position installation structure of the toothed blade-type grass cutting blade of the present invention; Figure 2 This is a schematic diagram of the toothed blade-shaped tail bending structure of the present invention; Figure 3 This is a schematic diagram of the multi-position installation structure of the grass cutting blade of the present invention; Figure 4 This is a schematic diagram of the toothed blade and toothed grass cutting chip structure of the present invention; Figure 5 This is a schematic diagram of the integrated bending structure of the grass cutting blade of the present invention; Figure 6 This is a schematic diagram of the screw connection structure of the grass cutting blades of the present invention; Figure 7 This is a schematic diagram of the toothed grass cutting blade structure of the present invention; Figure 8 This is a schematic diagram of the various shapes of grass cutting blades according to the present invention.

[0016] In the diagram: 1. Handle, 2. Blade, 3. Back of blade, 4. Cutting edge, 5. Cutting section, 6. Mounting slot, 7. Mounting hole, 8. Cutting blade, 9. Bending section. Detailed Implementation

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1This invention provides a technical solution: a rotary tiller with a grass-cutting structure, comprising an integrated handle 1 and blade 2. The handle 1 is provided with a mounting groove 6 and a mounting hole 7. The rotary tiller is typically a set of three blades, mounted at equal angles around the central axis of the blade shaft on the blade disc. The two sides of the blade 2 are the back 3 and the cutting edge 4, respectively. The front end of the blade 2 is provided with a cutting part 5. The blade 2 is arc-shaped, with the protruding side being the cutting edge 4, which can be sharpened at the edge of the cutting edge 4 to significantly reduce resistance when entering the soil. The concave side is the back 3. The cutting part 5 is curved, which improves the soil turning effect during rotary tillage. The edge of the back 3 or the cutting edge 4 is provided with a grass-cutting blade 8, and the end of the handle 1 is provided with a bending part 9.

[0019] The bending section 9 can till the shallow soil, press the chopped weeds into the soil, mix them evenly with the soil, accelerate decomposition, and also provide support to prevent the rotary tiller blades 2 from sinking too deep in the soft soil environment, thereby preventing the rotary tiller blade mounting carrier disc and blade shaft from sinking into the soil as well.

[0020] like Figure 2 , Figure 4 , Figure 7 As shown, the blade 2's back 3 and blade edge 4, the grass cutting blade 8, and the edge of the bent part 9 at the end of the handle 1 can all be provided with wavy teeth, which can enhance the cutting effect on weeds, grass roots, straw, etc. in the soil, and can also better drive weeds, grass roots, straw, etc., to be buried in the soil and mixed evenly. The blade 2's back 3 and blade edge 4, grass cutting blade 8, and the edge of the bent part 9 can also be sharpened to further enhance the soil penetration effect and the cutting effect on weeds or straw.

[0021] like Figure 3 As shown, the grass cutting blade 8 can be set at any position on the back of the blade 3 and the edge of the blade 4. The effect of cutting or shaving weeds or straw that the blade cannot cut is basically the same.

[0022] like Figure 5 As shown, the grass cutting blade 8 is formed by integral bending of the protrusion at the back of the blade 3 or the blade edge 4, resulting in better strength and higher processing efficiency.

[0023] like Figure 6 As shown, the grass cutting blade 8 is installed on the edge of the blade back 3 or the blade 4 by screwing or welding, which provides greater flexibility in determining the position of the grass cutting blade 8.

[0024] like Figure 8 As shown, the shape of the grass cutting blade 8 includes, but is not limited to, one of the following: triangle, rectangle, pentagon, hexagon, or arc. All shapes of grass cutting blades 8 have different degrees of effect in cutting or severing weeds or straw.

[0025] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rotary blade with a grass-cutting structure, comprising an integrated blade handle (1) and blade (2), the blade handle (1) is provided with a mounting groove (6) and a mounting hole (7), the two side surfaces of the blade (2) are respectively a blade back (3) and a blade edge (4), and the front end of the blade (2) is provided with a cutting part (5), characterized in that: The edge of the blade back (3) or blade edge (4) is provided with a grass cutting piece (8), and the end of the blade handle (1) is provided with a bent part (9).

2. The swivel blade with a grass-cutting structure according to claim 1, characterized in that: The grass cutting piece (8) is a convex integral bent part formed at the blade back (3) or blade edge (4).

3. The swivel blade with a grass-cutting structure according to claim 1, characterized in that: The grass cutting piece (8) is installed at the edge of the blade back (3) or blade edge (4) by screwing or welding.

4. The swivel blade with a grass-cutting structure according to claim 1, characterized in that: The edge of the blade back (3) or blade edge (4) is provided with a wave tooth.

5. The swivel blade with a mowing deck according to claim 1, characterized in that: The edge of the bent part (9) is provided with a wave tooth.

6. The swivel blade with a mowing deck according to claim 1, characterized in that: The shape of the grass cutting piece (8) includes but is not limited to a triangle, a rectangle, a pentagon, a hexagon, and an arc.

7. The swivel blade with a mowing deck according to claim 1 or 6, characterized in that: The edge of the grass cutting piece (8) is provided with a wave tooth.

8. The swivel blade with a mowing deck according to claim 1 or 6, characterized in that: The edge of the grass cutting piece (8) is sharpened.

9. The swivel blade with a mowing deck according to claim 1, characterized in that: The edge of the blade edge (4) is sharpened.

10. The swivel blade with a mulching feature of claim 1 wherein: The blade (2) is arc-shaped, the outward protruding side is the blade edge (4), the inward recessed side is the blade back (3), and the cutting-in part (5) is a warped shape.

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