A ripper with corrugated blades

Abstract

This invention relates to the field of rotary tiller blades and proposes a corrugated blade for a rotary tiller, comprising a handle and a blade body. The blade body has a cutting edge and a back edge. The handle is used for transmission connection with the main shaft of the rotary tiller. The cutting edge has continuously alternating protrusions and grooves along its edge for breaking up soil and removing weeds. The top of the protrusion has a toothed arc, which smoothly connects to the two side walls of the protrusion. The included angle between the two side walls of the protrusion is an obtuse angle. The bottom of the groove is a rounded transition, and the included angle between the two sides of the groove is an obtuse angle. The blade body also has two connecting holes and includes a secondary blade. A bolt assembly passes through the secondary blade and the connecting holes to fix the secondary blade to the blade body. The two sides of the secondary blade form an "L" shape, with one side fixed to the blade body. This technical solution solves the problems of poor soil breaking up and ineffective weed cutting in existing rotary tillers, which affect the continuity of tillage.

Description

Technical Field

[0001] This invention relates to the field of rotary tiller blade technology, and more particularly to a corrugated blade for a rotary tiller. Background Technology

[0002] Rotary tillers are commonly used agricultural equipment for tilling land. They rely on the high-speed rotation of rotary blades to complete soil turning, breaking up soil, and weeding. The structure and performance of the rotary tiller blades directly determine the tillage efficiency and quality. Currently, most conventional rotary tiller blades on the market adopt a straight blade structure, which is simple in design. In actual tillage, this results in poor soil breaking up, difficulty in fully breaking up compacted soil, and poor cutting and removal of weeds. Weeds easily become entangled in the blades, affecting the continuity of tillage.

[0003] The existing rotary tillers have poor soil breaking and are not effective at cutting weeds in the field, which affects the continuity of farming and needs to be addressed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a rotary tiller with a corrugated blade, which solves the problems of poor soil breaking effect, poor cutting effect on field weeds, and the impact on the continuity of tillage of existing rotary tillers.

[0005] The technical solution adopted in this invention is as follows: a corrugated blade for a rotary tiller is provided, comprising a handle and a blade body, the blade body having a cutting edge and a back edge, and the handle being used for transmission connection with the main shaft of the rotary tiller; characterized in that the cutting edge has continuously alternating protrusions and grooves along its edge for breaking up soil and removing weeds.

[0006] To further optimize this technical solution, the bottom of the groove is rounded, and the included angle between the two sides of the groove is obtuse.

[0007] To further optimize this technical solution, the blade body also has two connecting holes and includes a secondary blade. A bolt assembly passes through the secondary blade and the connecting holes to fix the secondary blade to the blade body. The two sides of the secondary blade form an "L" shape, with one side fixed to the blade body.

[0008] To further optimize this technical solution, the blade handle has a transmission groove, and the transmission groove has several sequentially connected transmission edges along its edge. The included angle between two adjacent transmission edges is an obtuse angle, and the transmission groove is connected to the main shaft of the rotary tiller.

[0009] To further optimize this technical solution, the tool holder has two circular holes, which are located on both sides of the transmission groove.

[0010] To further optimize this technical solution, the cross-section of the protrusion is triangular.

[0011] To further optimize this technical solution, the protrusion and the groove form a serrated shape.

[0012] To further optimize this technical solution, the top of the protrusion has a toothed arc, the toothed arc smoothly connects the two side walls of the protrusion, and the included angle between the two side walls of the protrusion is an obtuse angle.

[0013] The beneficial effects of this invention are as follows: 1. Alternating protrusions and grooves on one side of the blade form a serrated or corrugated shape, which reduces the resistance to soil penetration on one side of the blade, resulting in good soil breaking effect. It can efficiently break up compacted soil, and at the same time, it can cut and remove weeds in the field, reduce the problem of weed entanglement, maintain the continuity of cultivation, and improve the quality and efficiency of cultivation.

[0014] 2. Serrated or wavy blades can reduce slippage and allow for faster penetration into the soil. Attached Figure Description

[0015] Figure 1 This is a bottom-view structural diagram of the present invention; Figure 2 This is a side view of the structure of the present invention; The markings in the diagram are as follows: 1. Handle; 101. Transmission groove; 102. Circular hole; 2. Blade; 201. Cutting edge; 2011. Protrusion; 2012. Tooth tip arc; 2013. Groove; 202. Back of blade; 3. Secondary blade; 301. Bolt assembly. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] To keep the drawings concise, each figure only schematically shows the parts relevant to the invention, and these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0018] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0019] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0020] like Figure 1-2 As shown, a rotary tiller corrugated blade includes a handle 1 and a blade body 2. The blade body 2 has a cutting edge 201 and a back of the blade 202. The handle 1 is used for transmission connection with the main shaft of the rotary tiller. The blade body 201 has continuously alternating protrusions 2011 and grooves 2013 along its edge for breaking up soil and removing weeds.

[0021] The bottom of the groove 2013 is rounded, and the included angle between the two sides of the groove 2013 is obtuse.

[0022] The top of the protrusion 2011 has a toothed arc 2012, which smoothly connects the two side walls of the protrusion 2011, and the included angle between the two side walls of the protrusion 2011 is an obtuse angle.

[0023] In use, the edge of the blade 201 is provided with continuously alternating protrusions 2011 and grooves 2013. The protrusions 2011 and grooves 2013 together form a corrugated structure. The top of the protrusion 2011 is provided with a tooth tip arc 2012 for transition. The tooth tip arc 2012 smoothly connects to the two side walls of the protrusion 2011. The included angle between the two side walls of the protrusion 2011 is set to an obtuse angle to reduce the damage of sharp edges and corners and extend the service life. At the same time, the included angle between the two sides of the groove 2013 is also set to an obtuse angle. The cutting part of the entire blade 201 has no sharp dead corners.

[0024] Blade 201 cuts into the soil, breaking it up and simultaneously cutting some weeds and severing their roots. Blade 2 has a common curved structure.

[0025] Furthermore, the blade body 2 also has two connecting holes and includes a secondary blade 3. A bolt assembly 301 passes through the secondary blade 3 and the connecting holes to fix the secondary blade 3 to the blade body 2. The two sides of the secondary blade 3 form an "L" shape, and one side is fixed to the blade body 2.

[0026] In use, the two connecting holes on the blade 2 can be arranged along the direction from the blade 2 to the handle 1. A corresponding hole is made on one side of the secondary blade 3. The bolt passes through the secondary blade 3 and the connecting hole, and is locked with a nut. It can be understood that the hole on the secondary blade 3 can be a through hole structure, and the connecting hole on the blade 2 can be internally threaded. After the bolt passes through the secondary blade 3, it is threaded into the connecting hole.

[0027] The secondary blade 3 is connected to the blade body 2 on one side as a fixing part and on the other side as a cutting part. The side of the cutting part can be beveled to reduce its thickness, resulting in stronger cutting force for weeds. There is a certain gap between the cutting part and the main shaft of the rotary tiller. The secondary blade 3 cuts weeds and can also assist in breaking up the soil. The detachable structure facilitates the maintenance and replacement of the secondary blade 3.

[0028] Furthermore, the blade handle 1 has a transmission groove 101, and the transmission groove 101 has a plurality of sequentially connected transmission edges along its edge. The included angle between two adjacent transmission edges is an obtuse angle. The transmission groove 101 is connected to the rotary tiller main shaft for transmission.

[0029] The handle 1 has two round holes 102, which are located on both sides of the transmission groove 101.

[0030] In use, several transmission parts are spaced apart on the main shaft. Each transmission part has a polygonal structure, and three corrugated cutters can be installed along the circumference of the main shaft. The corrugated cutters are connected sequentially along the ring, and the internal transmission groove 101 fits into the shape of the transmission part for transmission. When the corrugated cutters are connected sequentially along the ring, the circular holes 102 of two corrugated cutters are coaxially opposite each other and are fixedly connected to the main shaft by bolts.

[0031] Furthermore, the cross-section of the protrusion 2011 is triangular.

[0032] When in use, the cross-section of the protrusion 2011 is triangular in shape. It can maintain a sharp corner structure or the tip of the triangle can be rounded to form the tooth tip arc 2012.

[0033] Furthermore, the protrusion 2011 and the groove 2013 form a serrated shape.

[0034] When in use, the protrusion 2011 and the groove 2013 together form a serrated shape, or a corrugated or zigzag structure.

[0035] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. A corrugated blade for a rotary tiller, comprising a handle (1) and a blade (2), the blade (2) having a cutting edge (201) and a back edge (202), the handle (1) being used for transmission connection with the main shaft of the rotary tiller; characterized in that, The blade (201) has continuously alternating protrusions (2011) and grooves (2013) along its edge for breaking up soil and removing weeds.

2. The corrugated blade of a rotary tiller according to claim 1, characterized in that, The bottom of the groove (2013) is rounded, and the included angle between the two sides of the groove (2013) is obtuse.

3. The corrugated blade of a rotary tiller according to claim 1, characterized in that, The blade (2) also has two connecting holes and includes a secondary blade (3). A bolt assembly (301) passes through the secondary blade (3) and the connecting holes to fix the secondary blade (3) to the blade (2). The two sides of the secondary blade (3) form an "L" shape, and one side is fixed to the blade (2).

4. The corrugated blade of a rotary tiller according to claim 1, characterized in that, The handle (1) has a transmission groove (101), and the transmission groove (101) has several sequentially connected transmission edges along its edge. The included angle between two adjacent transmission edges is an obtuse angle. The transmission groove (101) is connected to the main shaft of the rotary tiller.

5. A rotary tiller corrugated blade according to claim 4, characterized in that, The handle (1) has two round holes (102), which are located on both sides of the transmission groove (101).

6. The corrugated blade of a rotary tiller according to claim 1, characterized in that, The cross-section of the protrusion (2011) is triangular.

7. The corrugated blade of a rotary tiller according to claim 1, characterized in that, The protrusion (2011) and the groove (2013) form a serrated shape.

8. The corrugated blade of a rotary tiller according to claim 1, characterized in that, The top of the protrusion (2011) has a toothed arc (2012), which smoothly connects the two side walls of the protrusion (2011), and the included angle between the two side walls of the protrusion (2011) is an obtuse angle.

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