Horizontal cutting tool of deep ploughing machine

Abstract

The utility model discloses a horizontal cutter of a deep ploughing machine, which belongs to the technical field of deep ploughing machines and comprises a cutter shaft, a plurality of cutter heads are fixedly arranged on a shaft body of the cutter shaft at equal intervals, a plurality of horizontal cutters are fixedly connected onto the cutter heads through fixing bolts, and cutter included angles among the plurality of horizontal cutters are identical. The flat cutter is vertical to the cutter shaft; the cutter included angles between the adjacent flat cutters on the upper and lower adjacent cutter heads are the same, and the flat cutters on the upper and lower cutter heads are arranged in a spiral mode. The flat cutter structure is adopted, the effect of cutting soil is only generated in the horizontal direction, soil on the lower layer is not prone to being lifted to the upper layer, power consumption can be reduced, and soil mixing in the deep ploughing process is reduced; the displacement of the cutter mounting part is limited through the cutter mounting notch, and the flat cutter and the cutter head can be stably and firmly connected only through a single fixing bolt; the cutter can be conveniently replaced; after a plurality of cutterheads are combined, different continuous cutting tracks can be formed by changing the included angles of the flat cutters among the cutterheads.

Description

Technical Field

[0001] The utility model belongs to the technical field of deep tillage machines, and in particular relates to a flat cutting tool for a deep tillage machine. Background Art

[0002] The statements in this section merely provide background technical information related to the present invention and do not necessarily constitute prior art.

[0003] A spiral deep tiller is a special agricultural machine used for deep tillage of the land. The tillage depth is relatively deep. After deep tillage, the soil can provide plants with more nutrients, water, air, etc., which is beneficial to plant growth. After testing, the yield has increased after deep tillage.

[0004] In the prior art, the tools of deep tillage machines are mostly arranged in a manner that a spiral is provided on a drill rod and a blade is installed on the spiral. Although this structure has a better effect of powder ridge, it still has the following two disadvantages:

[0005] 1) The structure of the spiral tool is relatively complex and the processing difficulty is relatively high, which limits its use to a certain extent;

[0006] 2) Since the spiral cutter has a lifting effect on the soil during rotation, part of the soil is separated from the original soil layer position, and the soil layer structure is partially mixed in the vertical direction. The lifting of the soil layer will also cause power loss. Utility Model Content

[0007] In response to the above problems, the utility model provides a flat cutting tool for a deep tillage machine, which can reduce the occurrence of soil mixing during deep tillage and reduce power consumption; it can make the connection between the tool and the cutter disc stable and firm and easy to replace and maintain; it can change the angle between the flat tools between the cutter discs to form different continuous cutting trajectories.

[0008] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0009] A flat cutting tool for a deep tiller comprises a cutter shaft, a plurality of cutter discs fixedly arranged on the cutter shaft at equal intervals at a certain distance, a plurality of flat cutters fixedly connected to the cutter disc by fixing bolts, and the cutter angles between the plurality of flat cutters are the same; the flat cutters are perpendicular to the cutter shaft; the cutter disc angles between adjacent flat cutters on upper and lower adjacent cutter discs are the same, and the flat cutters on the upper and lower multiple cutter discs are arranged in a spiral.

[0010] Preferably, the cutter disc includes a circular cutter disc body, a plurality of cutter mounting notches are provided on the cutter disc body, and a fixing bolt hole is provided at the center of the cutter mounting notch.

[0011] Preferably, the angles between the lines connecting the centers of adjacent fixing bolt holes and the center of the cutter disc body are the same.

[0012] Preferably, the number of the tool mounting notches is no less than two.

[0013] Preferably, the flat tool includes a tool mounting portion, the tool mounting portion is fixedly connected to a hook-shaped tool body, and the shape of the tool mounting portion is consistent with the shape of the tool mounting notch.

[0014] Preferably, the tool mounting portion is also provided with fixing bolt holes at corresponding positions; the fixing bolts are sequentially passed through the fixing bolt holes of the tool mounting portion and the tool mounting notch and then tightened.

[0015] Preferably, the thickness of the tool installation portion is consistent with the thickness of the tool installation notch, and the upper and lower surfaces of the hook-shaped tool body are flush with the upper and lower surfaces of the tool installation portion.

[0016] Preferably, all of the hook-shaped blades are oriented in the same direction, either clockwise or counterclockwise.

[0017] Preferably, the number of the cutter discs is no less than six.

[0018] Compared with the prior art, the advantages and positive effects of this utility model are:

[0019] 1) The utility model adopts a straight flat tool structure, which only cuts the soil in the horizontal direction and does not cut the soil in the vertical direction. The vertical soil layer is only stirred in the horizontal direction, and the soil in the lower layer is not easily lifted to the upper layer, which can reduce power consumption and reduce the occurrence of soil mixing during deep plowing.

[0020] 2) The utility model limits the displacement of the tool installation part through the tool installation notch, and can achieve a stable and firm connection between the flat tool and the cutter disc with only a single fixing bolt; it can facilitate tool replacement and maintenance.

[0021] 3) After combining multiple cutter discs, the utility model can form different continuous cutting trajectories by changing the angle between the flat cutters of the cutter discs. Compared with the integral cutter structure, the utility model has a simpler structure, smaller cutting force, higher efficiency and better soil crushing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0023] Figure 1 It is an overall schematic diagram of an embodiment of the utility model;

[0024] Figure 2This is a schematic diagram of the connection between the cutter disc and the flat cutter according to an embodiment of the present invention;

[0025] In the picture:

[0026] 1- cutter shaft, 2- cutter disc, 21- cutter disc body, 22- cutter installation notch, 23- fixing bolt hole, 3- flat cutter, 31- cutter installation part, 32- hooked cutter body, 4- fixing bolt. DETAILED DESCRIPTION

[0027] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0028] The following drawings are combined to describe the present invention in detail. The present embodiment discloses a flat cutting tool for a deep tiller, such as Figure 1 As shown, it includes a cutter shaft 1, on which a plurality of cutter discs 2 are fixedly arranged at equal intervals, and the cutter discs 2 are fixedly connected with a plurality of flat cutters 3 by fixing bolts 4; the flat cutters 3 are perpendicular to the cutter shaft 1.

[0029] In this embodiment, if Figure 2 As shown, the cutterhead 2 includes an annular cutterhead body 21. Three cutter mounting notches 22 of identical size are provided on the cutterhead body 21. A fixing bolt hole 23 is provided at the center of each cutter mounting notch 22. The angle between the lines connecting the centers of the three fixing bolt holes 23 and the center of the cutterhead body 21 is the same, 120°. It is understood that the number of cutter mounting notches 22 can be four or more, but the number of cutter mounting notches 22 is at least two.

[0030] In this embodiment, if Figure 2 As shown, the flat cutter 3 includes a cutter mounting portion 31, to which a hook-shaped cutter body 32 is fixedly connected. The shape of the cutter mounting portion 31 is consistent with the shape of the cutter mounting notch 22. The cutter mounting portion 31 is also provided with a fixing bolt hole 23 at a corresponding position, and its thickness is consistent with the thickness of the cutter mounting notch 22. That is, the lower surface of the cutter mounting portion 31 is tangent to the surface of the cutter mounting notch 22, and the upper surface of the cutter mounting portion 31 is flush with the upper surface of the cutter disc body 21. The upper and lower surfaces of the hook-shaped cutter body 32 are flush with the upper and lower surfaces of the cutter mounting portion 31.

[0031] In this embodiment, if Figure 2As shown, the cutter mounting portion 31 is precisely accommodated by the cutter mounting notch 22, and the fixing bolt hole 23 of the cutter mounting portion 31 corresponds to the fixing bolt hole 23 of the cutter mounting notch 22. Fixing bolts 4 are sequentially passed through the two fixing bolt holes 23 to secure the flat cutter 3 to the cutter disc 2. It is understood that because the angle between the center of the fixing bolt hole 23 and the center of the cutter disc body 21 is 120°, the three flat cutters 3 on each cutter disc 2 have the same included angle. It is also understood that when the flat cutter 3 is installed on the cutter disc 2, the hook-shaped cutter body 32 is oriented in the same direction, either clockwise or counterclockwise.

[0032] In this embodiment, if Figure 2 As shown, because the cutter mounting portion 31 is entirely accommodated by the cutter mounting notch 22, the cutter mounting notch 22 can restrict its position, allowing the flat cutter 3 to be stably mounted using a single fixing bolt 4. Furthermore, the flat cutter 3 is connected to the cutter head 2 using only a single fixing bolt 4, which facilitates replacement of the flat cutter 3 and is more convenient for replacement and maintenance than integral or welded cutters.

[0033] like Figure 1 As shown, in this embodiment, six cutter discs 2 are fixedly mounted on the shaft of the cutter shaft 1 at equal intervals from top to bottom. For ease of understanding, the three upper cutter discs 2 are grouped together, and the three lower cutter discs 2 are grouped together. Within a group of cutter discs 2, the flat cutting blades 3 of the upper cutter disc 2 and the flat cutting blades 3 of the middle cutter disc 2 are not aligned. The flat cutting blades 3 of the upper cutter disc 2 and the adjacent flat cutting blades 3 of the middle cutter disc 2 have the same cutter disc angle, which can be 60°. Similarly, the flat cutting blades 3 of the middle cutter disc 2 and the adjacent flat cutting blades 3 of the lower cutter disc 2 also have the same cutter disc angle, which can be 60°.

[0034] Therefore, in this embodiment, the cutterhead angles between adjacent flat blades 3 on adjacent cutterheads 2 are all the same, at 60°. This is to ensure that the flat blades 3 on the upper and lower cutterheads 2 are arranged in a spiral. This arrangement ensures the flat blades' ability to cut the soil layer. It will be understood that all hook-shaped blades 32 on the six adjacent cutterheads 2 face the same direction, either clockwise or counterclockwise. It will be understood that the cutterhead angles can also be other angles, as long as the cutterhead angles between adjacent flat blades 3 on adjacent cutterheads 2 are the same, and the flat blades 3 on the upper and lower cutterheads 2 are arranged in a spiral.

[0035] It can be understood that in this embodiment, in order to make the spiral angle of the flat tool dense and reduce the distance between the cutter discs, the number of cutter discs 2 is increased on the cutter shaft 1; in this embodiment, the number of cutter discs 2 is designed to be six only for illustration. In actual production, the number of cutter discs is not less than six.

[0036] In this embodiment, a flange is provided on the top of the cutter shaft 1 for connecting the cutter shaft to a working component of a deep tillage machine for deep tillage, and can drive the cutter shaft 1 to drill vertically into the soil layer.

[0037] The cutter shaft 1 is inserted perpendicularly into the soil layer, with the flat cutter 3 parallel to the ground, and the upper and lower surfaces of the hooked cutter body 32 flush with the upper and lower surfaces of the cutter mounting portion 31. Therefore, the flat cutter only cuts the soil horizontally, not vertically. Vertical soil layers are only disturbed horizontally, and the flat cutter does not cause the cut soil to move up and down, causing intermixing. This also means that using a flat cutter consumes less power than using spiral or curved cutters, resulting in less intermixing and energy savings.

[0038] Moreover, by changing the cutter disc angle between the flat cutters 3 on adjacent cutter discs 2, different continuous cutting trajectories can be formed, which is simpler and more efficient than an integral cutter structure. There is a gap between the cutter discs, and the flat cutters are parallel to the soil layer, so the soil resistance encountered is less, making the cutters less susceptible to damage and extending their service life.

[0039] Although the above description of the specific implementation methods of the present invention is combined with the accompanying drawings, it does not limit the scope of protection of the present invention. Technical personnel in the relevant field should understand that on the basis of the technical solution of the present invention, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the present invention.

Claims

1. A flat cutting tool for a deep tillage machine, characterized in that: It includes a cutter shaft, on which a plurality of cutter discs are fixedly arranged at equal intervals at a certain distance. A plurality of flat cutting tools are fixedly connected to the cutter disc by fixing bolts, and the tool angles between the plurality of flat cutting tools are the same; the flat cutting tools are perpendicular to the cutter shaft; the cutter disc angles between adjacent flat cutting tools on upper and lower adjacent cutter discs are the same, and the flat cutting tools on the upper and lower multiple cutter discs are arranged in a spiral.

2. A horizontal cutting tool for a deep tiller according to claim 1, characterized in that: The cutter disc comprises a circular cutter disc main body, a plurality of cutter installation notches are arranged on the cutter disc main body, and a fixing bolt hole is arranged at the center of the cutter installation notch.

3. A horizontal cutting tool for a deep tiller according to claim 2, characterized in that: The angles between the lines connecting the centers of adjacent fixing bolt holes and the center of the cutter disc body are the same.

4. A horizontal cutting tool for a deep tiller according to claim 2, characterized in that: The number of the tool installation notches is no less than two.

5. The horizontal cutting tool for a deep tiller according to claim 1, characterized in that: The flat tool comprises a tool mounting portion, to which a hook-shaped tool body is fixedly connected, and a shape of the tool mounting portion is consistent with a shape of the tool mounting notch.

6. A horizontal cutting tool for a deep tiller according to claim 5, characterized in that: The tool installation part is also provided with fixing bolt holes at corresponding positions; the fixing bolts are sequentially passed through the fixing bolt holes of the tool installation part and the tool installation notch and then tightened.

7. A horizontal cutting tool for a deep tiller according to claim 5, characterized in that: The thickness of the tool installation part is consistent with the thickness of the tool installation notch, and the upper and lower surfaces of the hook-shaped tool body are flush with the upper and lower surfaces of the tool installation part.

8. The horizontal cutting tool for a deep tiller according to claim 5, characterized in that: All of the hook-shaped blades are oriented in the same direction, either clockwise or counterclockwise.

9. The horizontal cutting tool for a deep tiller according to claim 1, characterized in that: The number of the cutter discs is no less than six.

Images