Rotary blade

Abstract

The utility model discloses a rotary blade which comprises a blade handle, a side cutting part and a tangent part, a side cutting edge is arranged on the soil cutting side of the side cutting part, a tangent edge is arranged on the soil cutting side of the tangent part, the height of the end face of the tangent part is 4-6 cm, and the included angle alpha between the turning radius of the end point of the side cutting edge and the bending line of the rotary blade is 47-50 degrees. And a non-soil-cutting side transition section of the side cutting part and the tangent part is provided with a soil throwing sheet. The soil hardening breaking capacity of the rotary blade is improved, the soil throwing capacity is improved, and tobacco field ridging operation and intertillage operation can be better completed after the rotary blade is used in cooperation with corresponding machines and tools.

Description

Technical Field

[0001] This utility model relates to rotary tillers, specifically to a rotary tiller blade. Background Technology

[0002] Tobacco is one of my country's important economic crops, widely cultivated in all provinces and regions of the country. Tobacco field management involves multiple stages, among which ridging and cultivation are crucial. The quality of ridging and cultivation directly affects the quality of tobacco leaf production. Before ridging, the soil in the tobacco field has undergone long-term settling, resulting in compacted and hardened soil, which significantly impacts the ridging process.

[0003] Currently, ridging in most tobacco-growing areas is done by attaching a tractor to a ridging machine and using traditional rotary tillers. While this method produces good results, it causes significant damage to the rotary tillers, undoubtedly increasing operating costs. Furthermore, inter-row cultivation in tobacco fields differs from ridging and is still performed manually or using general-purpose garden tillage machinery. Manual inter-row cultivation in tobacco fields yields good results but is expensive; general-purpose garden tillage machinery typically uses traditional rotary tillers with soil guiding devices for inter-row cultivation. However, because traditional rotary tillers have limited soil-throwing capacity, they cannot effectively complete inter-row cultivation.

[0004] To improve the efficiency of ridging and tillage operations in tobacco fields, it is necessary to provide a tool for ridging and tillage in tobacco fields. Utility Model Content

[0005] The technical problem to be solved by this utility model is to address the shortcomings of traditional rotary tillage blades which are easily damaged when used for inter-row cultivation and ridging in tobacco fields. This utility model provides a rotary tillage blade that can improve the ability of tobacco inter-row cultivation and ridging blades to break up soil compaction.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A rotary tiller includes a handle, a side-cutting section, and a front-cutting section. The side-cutting section has a side-cutting blade on its soil-cutting side, and the front-cutting section has a front-cutting blade on its soil-cutting side. Its structural features are: the height of the front-cutting end face of the front-cutting section is 4-6 cm, and the angle α between the turning radius of the end point of the side-cutting blade and the bending line of the rotary tiller is 47°-50°.

[0008] Preferably, a soil-throwing plate is installed on the non-cutting side transition section of the lateral cut and the main cut.

[0009] Preferably, the shape of the soil-throwing sheet is elliptical, and its standard equation is: Where a1 is the length of the major semi-axis of the ellipse, b1 is the length of the minor semi-axis of the ellipse, and x and y are the coordinates of the ellipse in the Cartesian coordinate system.

[0010] Preferably, a1 is no greater than 50mm and b1 is no greater than 40mm.

[0011] Preferably, the bending line of the soil-throwing sheet coincides with the minor axis of the soil-throwing sheet.

[0012] Preferably, the bending angle ε of the soil-throwing sheet is 30°–45°.

[0013] Preferably, the tilt angle γ of the soil-throwing sheet is 110°–120°.

[0014] Preferably, the outer end of the soil-throwing sheet extends to the top of the tangential surface, and the inner end extends to the normal extension line of the end point of the side cutting edge.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1) The height h of the tangential end face of the rotary tiller blade of this utility model is increased to 4-6cm, the turning radius R is 22.5cm, and the angle α between the end radius of the side cutting edge and the bending line is 47°-50°, thereby greatly enhancing the blade's ability to break up soil compaction.

[0017] 2) This utility model adds a soil-throwing blade to the non-cutting side at the transition between the side cutting part and the front cutting part of the rotary tiller to enhance the soil-throwing ability of the blade.

[0018] 3) The shape of the soil-throwing sheet of this utility model is designed to be elliptical, which reduces the trenching resistance when its edge enters the soil.

[0019] 4) The outer end of the soil-throwing sheet of this utility model extends to the top of the tangential surface, and the inner end extends to the normal extension line of the end point of the side cutting edge, ensuring that the length L of the soil-throwing sheet can completely cover the soil that slides from the tangential surface.

[0020] 5) This utility model not only improves the ability of the rotary tiller blade to break up soil compaction during tobacco cultivation and ridging, but also enhances the soil throwing capacity. When used with appropriate machinery, it can better complete the ridging and cultivation operations in tobacco fields. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a front view structural diagram of the present invention.

[0023] Figure 2 This is a top view of the present invention.

[0024] Figure 3 This is a front view of the soil dumping slab.

[0025] Figure 4 This is a top view of the soil dumping slab.

[0026] In the diagram: 1. Handle; 2. Side cutting section; 3. Front cutting section; 4. Side cutting edge; 5. Front cutting edge; 6. Soil-throwing blade; A. End point of the side cutting edge; B. Bending line of the rotary tiller blade; a. Top width of the front cutting surface; b. Total height of the blade after bending; h. Height of the front cutting surface end face; R. Radius of rotation of the front cutting surface end point; R1. Radius of rotation of the side cutting edge end point; L. Length of the soil-throwing blade; H. Width of the soil-throwing blade; θ max Side cutting edge wrap angle. Detailed Implementation

[0027] The present invention will be further described below with reference to specific preferred embodiments, but this does not limit the scope of protection of the present invention.

[0028] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Please see Figure 1 An embodiment of the rotary tiller blade of this utility model includes a handle 1, a side-cutting part 2, and a front-cutting part 3. The side-cutting part 2 is provided with a side-cutting blade 4 on the soil-cutting side, and the front-cutting part 3 is provided with a front-cutting blade 5 on the soil-cutting side. A soil-throwing plate 6 is installed at an angle on the transition section between the side-cutting part 2 and the non-soil-cutting side of the front-cutting part 3. The height h of the front-cutting end face of the front-cutting part 3 is 6cm, and the angle α between the turning radius R1 of the end point of the side-cutting blade and the bending line B of the rotary tiller blade is 47°.

[0031] The shape of the soil-throwing plate 6 is elliptical, and its standard equation is: Where a1 is the length of the major semi-axis of the ellipse, b1 is the length of the minor semi-axis of the ellipse, x and y are the coordinates of the ellipse in a Cartesian coordinate system, and a1 is no greater than 50 mm and b1 is no greater than 40 mm. That is, the maximum length L of the soil-throwing piece 6 is 10 cm and the maximum width H is 8 cm.

[0032] The two ends of the soil-throwing sheet 6 are bent relative to each other, and the bending line of the soil-throwing sheet 6 is the center line of symmetry of the soil-throwing sheet. That is, the bending line of the soil-throwing sheet 6 coincides with the minor axis of the soil-throwing sheet. Preferably, the bending angle ε of the soil-throwing sheet 6 is 30°.

[0033] Preferably, the rotation radius R of the rotary tiller blade of this invention is 22.5 cm.

[0034] Preferably, the tilt angle γ of the soil-throwing plate 6 is 120°.

[0035] Preferably, the outer end of the soil-throwing plate 6 extends to the top of the tangential surface, and the inner end extends to the normal extension line of the end point of the side cutting edge.

[0036] When this invention is used, after the side cutting blade 4 and the front cutting blade 5 cut the soil, the soil rises along the blade surface and reaches the soil throwing plate 6. The soil is then subjected to the force of the soil throwing plate 6 and thrown out from any position on the plate, thus being thrown to one side. The distance the soil is thrown is related not only to the installation tilt angle γ of the soil throwing plate 6 but also to the width H of the soil throwing plate.

[0037] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model, or modify it into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the content of the technical solution of this utility model should fall within the protection scope of the technical solution of this utility model.

Claims

1. A rotary tiller, comprising a handle (1), a side-cutting section (2), and a front-cutting section (3), wherein a side-cutting blade (4) is provided on the soil-cutting side of the side-cutting section, and a front-cutting blade (5) is provided on the soil-cutting side of the front-cutting section, characterized in that, The end face height h of the tangent is 4-6cm, and the angle α between the end point radius of the side cutting edge and the bending line of the rotary tiller is 47°-50°.

2. The rotary tiller blade according to claim 1, characterized in that, The non-cutting side transition section of the lateral section and the main section is equipped with a soil-throwing plate (6).

3. The rotary tiller blade according to claim 2, characterized in that, The shape of the soil-throwing sheet is elliptical, and its standard equation is: Where a1 is the length of the major semi-axis of the ellipse, b1 is the length of the minor semi-axis of the ellipse, and x and y are the coordinates of the ellipse in the Cartesian coordinate system.

4. The rotary tiller blade according to claim 3, characterized in that, a1 is no greater than 50mm, and b1 is no greater than 40mm.

5. The rotary tiller blade according to claim 3, characterized in that, The bending line of the soil-throwing sheet coincides with the minor axis of the soil-throwing sheet.

6. The rotary tiller blade according to claim 2, characterized in that, The bending angle ε of the soil-throwing sheet is 30°–45°.

7. The rotary tiller blade according to claim 2, characterized in that, The tilt angle γ of the soil-throwing sheet is 110°–120°.

8. The rotary tiller blade according to claim 2, characterized in that, The outer end of the soil-throwing sheet extends to the top of the tangential surface, and the inner end extends to the normal extension line of the end point of the side cutting edge.

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