Multifunctional shrub stumping machine

Abstract

The utility model provides a multifunctional shrub stumping machine, and relates to the technical field of shrub stumping. Comprising a mounting shaft, an outer circular saw blade and an inner circular saw blade, the outer circular saw blade comprises a first inner plane part, a first circular truncated cone part and a first outer plane part, sawteeth are arranged on the peripheral side of the first outer plane part, a mounting groove with a downward opening is formed in the bottom of the outer circular saw blade, and the inner circular saw blade is located in the mounting groove; the inner circular saw blade comprises a second inner plane part, a second circular truncated cone part and a second outer plane part, the second inner plane part is arranged on the mounting shaft, the small-diameter side of the second circular truncated cone part is connected with the outer peripheral side of the second inner plane part, and the large-diameter side of the second circular truncated cone part is connected with the inner peripheral side of the second outer plane part; sawteeth are arranged on the peripheral side of the second outer plane part. By the adoption of the circular saw blade, the structural strength of the circular saw blade can be improved, and the risk that the circular saw blade is damaged during use is reduced; and the shrubs can be cut twice, so that cut surfaces of the shrubs can be cut flatly, and germination and growth of the shrubs in the next year are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of shrub stubbling, and particularly to a multifunctional shrub stubbling machine. Background Art

[0002] At present, the stubbling of psammophytic shrubs is an indispensable link in their growth. For example, tree species such as Caragana korshinskii need to be stubbled during the planting process. To ensure the germination rate after stubbling in the coming year, certain biological requirements need to be met for stubbling, that is, the cutting surface of the shrub should be flat. However, during the process of cutting psammophytic shrubs, the smaller the thickness of the circular saw blade, the smoother the cutting surface of the cut shrub. But for saw blades with a larger diameter, if the thickness is too small, the overall stiffness will decrease, and the saw blade is prone to deformation or even fracture during cutting. Moreover, after the shrub is cut once, the cutting surface of some shrubs is not flat and has many burrs. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a multifunctional shrub stubbling machine, which can improve the structural strength of the circular saw blade and reduce the risk of damage when the circular saw blade is used; moreover, it can cut the shrub twice, facilitating the cutting of the shrub cutting surface flat, which is beneficial to the germination and growth of the shrub in the coming year.

[0004] The technical solution adopted by the utility model is as follows:

[0005] The embodiment of the present application provides a multifunctional shrub stubbling machine, which includes a mounting shaft, an outer circular saw blade, and an inner circular saw blade. The outer circular saw blade includes a first inner flat portion, a first frustum portion, and a first outer flat portion. The first inner flat portion is arranged on the mounting shaft. The smaller-diameter side of the first frustum portion is connected to the outer peripheral side of the first inner flat portion, and the larger-diameter side of the first frustum portion is connected to the inner peripheral side of the first outer flat portion. A sawtooth is provided on the outer peripheral side of the first outer flat portion, and an installation groove with an opening facing downwards is formed at the bottom of the outer circular saw blade. The inner circular saw blade is located in the installation groove;

[0006] The inner circular saw blade includes a second inner flat portion, a second frustum portion, and a second outer flat portion. The second inner flat portion is arranged on the mounting shaft. The smaller-diameter side of the second frustum portion is connected to the outer peripheral side of the second inner flat portion, and the larger-diameter side of the second frustum portion is connected to the inner peripheral side of the second outer flat portion. A sawtooth is provided on the outer peripheral side of the second outer flat portion, and the second outer flat portion and the first outer flat portion are located in the same plane.

[0007] Further, in some embodiments of the utility model, a backing plate is provided in the installation groove, and the backing plate abuts between the outer circular saw blade and the inner circular saw blade.

[0008] Further, in some embodiments of the utility model, the backing plate is provided with a plurality of heat dissipation holes.

[0009] Further, in some embodiments of the present utility model, a limiting cover plate is fixedly provided on the mounting shaft. The mounting shaft slidably passes through the outer circular saw blade and the inner circular saw blade, and a locking bolt is threadedly connected to the bottom of the mounting shaft; the outer circular saw blade abuts against the bottom of the limiting cover plate, and the locking bolt abuts against the bottom of the inner circular saw blade.

[0010] Further, in some embodiments of the present utility model, the limiting cover plate covers the first inner plane portion and the first frustum portion.

[0011] Further, in some embodiments of the present utility model, a protective top plate is detachably provided on the limiting cover plate, and the protective top plate abuts against the top of the first outer plane portion.

[0012] Further, in some embodiments of the present utility model, a mounting bolt is further included. The mounting bolt passes through the protective top plate and is threadedly connected to the limiting cover plate.

[0013] Compared with the prior art, the embodiments of the present utility model have at least the following advantages or beneficial effects:

[0014] The embodiments of the present utility model provide a multifunctional shrub stubbling machine, which can improve the structural strength of the circular saw blade and reduce the risk of damage when the circular saw blade is used; moreover, it can cut the shrub twice, facilitating the cutting of the cut surface of the shrub to be flat, which is beneficial to the sprouting and growth of the shrub in the coming year. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is a cross-sectional view of the shrub stubbling machine provided by the embodiment of the present utility model;

[0017] Figure 2 It is a top view of the outer circular saw blade provided by the embodiment of the present utility model.

[0018] Reference numerals: 1 - mounting shaft; 2 - first inner plane portion; 3 - first frustum portion; 4 - first outer plane portion; 5 - mounting groove; 6 - second inner plane portion; 7 - second frustum portion; 8 - second outer plane portion; 9 - backing plate; 10 - limiting cover plate; 11 - locking bolt; 12 - protective top plate; 13 - mounting bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. The components of the embodiments of the present utility model described and illustrated herein can be arranged and designed in a variety of different configurations.

[0020] Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0021] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not require further definition and explanation in subsequent drawings.

[0022] In the description of the embodiments of the present utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship in which the utility model product is habitually placed during use. This is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0023] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0024] In the description of the embodiments of the present utility model, it should also be noted that unless otherwise clearly specified and limited, if terms such as "set" and "connect" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] Embodiment

[0026] Please refer to Figure 1 - Figure 2 , this embodiment provides a multifunctional shrub stubbling machine, including a mounting shaft 1, an outer circular saw blade and an inner circular saw blade. The outer circular saw blade includes a first inner flat portion 2, a first frustum portion 3 and a first outer flat portion 4. The first inner flat portion 2 is provided on the mounting shaft 1. The smaller-diameter side of the first frustum portion 3 is connected to the outer peripheral side of the first inner flat portion 2, and the larger-diameter side of the first frustum portion 3 is connected to the inner peripheral side of the first outer flat portion 4. Saw teeth are provided on the outer peripheral side of the first outer flat portion 4, and an installation groove 5 with an opening facing downwards is formed at the bottom of the outer circular saw blade. The inner circular saw blade is located in the installation groove 5;

[0027] The inner circular saw blade includes a second inner flat portion 6, a second frustum portion 7 and a second outer flat portion 8. The second inner flat portion 6 is provided on the mounting shaft 1. The smaller-diameter side of the second frustum portion 7 is connected to the outer peripheral side of the second inner flat portion 6, and the larger-diameter side of the second frustum portion 7 is connected to the inner peripheral side of the second outer flat portion 8. Saw teeth are provided on the outer peripheral side of the second outer flat portion 8, and the second outer flat portion 8 and the first outer flat portion 4 are located in the same plane.

[0028] During use, it can be installed and fixed on the driving device through the mounting shaft 1 for rotary cutting, and the shrubs are stubbled by the saw teeth on the outer peripheral side of the first outer flat portion 4 and the saw teeth on the outer peripheral side of the second outer flat portion 8. The outer circular saw blade of this application is provided with a first frustum portion 3 in the middle, so that an installation groove 5 with an opening facing downwards is formed. In this way, compared with the traditional circular saw blade with an overall flat shape, the outer circular saw blade provided by this application has higher structural strength, is not easily deformed during cutting, and reduces the risk of damage when the circular saw blade is used. The outer circular saw blade and the inner circular saw blade of this application can both adopt a stamping and integral forming design, and the top view of the inner circular saw blade is the same as Figure 2 the top view of the outer circular saw blade Figure 1 is the same, and the structural principle of the inner circular saw blade is the same as that of the outer circular saw blade.

[0029] Moreover, since both an outer circular saw blade and an inner circular saw blade are designed, the shrubs are first cut by the saw teeth of the outer circular saw blade. If the cutting surface of the shrubs is uneven, during the forward movement of this device, the inner circular saw blade will move to the position of the shrubs after the first cut. At this time, the saw teeth of the inner circular saw blade can be used to perform a second cut on the burrs protruding from the cut surface of the shrubs after the first cut. In this way, the shrubs are cut twice, which is convenient for cutting the cut surface of the shrubs flat and conducive to the germination and growth of the shrubs in the coming year.

[0030] As Figure 1 - Figure 2 shown, in some embodiments of the present utility model, a backing plate 9 is provided in the installation groove 5, and the backing plate 9 abuts between the outer circular saw blade and the inner circular saw blade.

[0031] The utility model fixes the outer circular saw blade and the inner circular saw blade by abutting them through the cushion plate 9, so that the risk of deformation of the outer circular saw blade and the inner circular saw blade during cutting can be reduced, and further the risk of damage to the outer circular saw blade and the inner circular saw blade can be reduced.

[0032] As Figure 1 - Figure 2 shown, in some embodiments of the utility model, the cushion plate 9 is provided with a plurality of heat dissipation holes. Since a large amount of heat is generated by friction during the cutting of the circular saw blade, the utility model is provided with heat dissipation holes to facilitate the heat dissipation of the outer circular saw blade and the inner circular saw blade.

[0033] As Figure 1 - Figure 2 shown, in some embodiments of the utility model, the mounting shaft 1 is fixedly provided with a limit cover plate 10. The mounting shaft 1 slides through the outer circular saw blade and the inner circular saw blade, and a locking bolt 11 is threadedly connected to the bottom of the mounting shaft 1; the outer circular saw blade abuts against the bottom of the limit cover plate 10, and the locking bolt 11 abuts against the bottom of the inner circular saw blade. The limit cover plate 10 covers the first inner plane portion 2 and the first frustum portion 3.

[0034] The utility model fixes the outer circular saw blade and the inner circular saw blade in the middle together through the limit cover plate 10 and the locking bolt 11, which improves the stability of the fixation and the locking bolt 11 can be removed to replace the outer circular saw blade and the inner circular saw blade. On the other hand, the limit cover plate 10 covers the first inner plane portion 2 and the first frustum portion 3, so that the outer circular saw blade can be abutted by the limit cover plate 10, which can reduce the risk of deformation of the outer circular saw blade during cutting and further reduce the risk of damage to the outer circular saw blade. Key grooves can be provided on the outer circular saw blade, the inner circular saw blade and the mounting shaft 1 of this embodiment, and the outer circular saw blade and the inner circular saw blade can be installed in the key grooves by keys to prevent them from rotating relative to the mounting shaft 1.

[0035] As Figure 1 - Figure 2 shown, in some embodiments of the utility model, the limit cover plate 10 is detachably provided with a protection top plate 12, and the protection top plate 12 abuts against the top of the first outer plane portion 4. It also includes a mounting bolt 13, and the mounting bolt 13 passes through the protection top plate 12 and is threadedly connected to the limit cover plate 10.

[0036] The utility model fixes the protection top plate 12 to the limit cover plate 10 by the mounting bolt 13 when the first outer plane portion 4 needs to be abutted and protected, and the first outer plane portion 4 is abutted and protected by the protection top plate 12. When the protection top plate 12 is not needed, the mounting bolt 13 can be removed to disassemble the protection top plate 12.

[0037] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, it is obvious that this application is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of this application, this application can be implemented in other specific forms.

[0038] Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of this application is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in this application. Any reference signs in the claims should not be regarded as limiting the claims involved. For those skilled in the art, various changes and modifications can be made to the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A multi-functional shrub stubbling machine, characterized in that: It includes a mounting shaft, an outer circular saw blade and an inner circular saw blade. The outer circular saw blade includes a first inner flat portion, a first frustum portion and a first outer flat portion. The first inner flat portion is provided on the mounting shaft. The side with a smaller diameter of the first frustum portion is connected to the outer peripheral side of the first inner flat portion, and the side with a larger diameter of the first frustum portion is connected to the inner peripheral side of the first outer flat portion. Saw teeth are provided on the outer peripheral side of the first outer flat portion. An installation groove with an opening facing downwards is formed at the bottom of the outer circular saw blade, and the inner circular saw blade is located in the installation groove. The inner circular saw blade includes a second inner flat portion, a second frustum portion and a second outer flat portion. The second inner flat portion is provided on the mounting shaft. The side with a smaller diameter of the second frustum portion is connected to the outer peripheral side of the second inner flat portion, and the side with a larger diameter of the second frustum portion is connected to the inner peripheral side of the second outer flat portion. Saw teeth are provided on the outer peripheral side of the second outer flat portion, and the second outer flat portion and the first outer flat portion are located in the same plane.

2. The multifunctional shrub stubbling machine according to claim 1, characterized in that: A backing plate is provided in the installation groove, and the backing plate abuts between the outer circular saw blade and the inner circular saw blade.

3. The multifunctional shrub stubbling machine according to claim 2, characterized in that: The backing plate is provided with a plurality of heat dissipation holes.

4. A multi-functional shrub stubbling machine according to claim 1, characterized in that: A limiting cover plate is fixedly provided on the mounting shaft. The mounting shaft slidably passes through the outer circular saw blade and the inner circular saw blade, and a locking bolt is threadedly connected to the bottom of the mounting shaft. The outer circular saw blade abuts against the bottom of the limiting cover plate, and the locking bolt abuts against the bottom of the inner circular saw blade.

5. The multifunctional shrub stubbling machine according to claim 4, characterized in that: The limiting cover plate covers the first inner flat portion and the first frustum portion.

6. A multi-functional shrub stubbling machine according to claim 5, characterized in that: A protective top plate is detachably provided on the limiting cover plate, and the protective top plate abuts against the top of the first outer flat portion.

7. The multifunctional shrub stubbling machine according to claim 6, characterized in that: It further includes a mounting bolt, and the mounting bolt passes through the protective top plate and is threadedly connected to the limiting cover plate.

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