Rotary tillage blade and rotary tillage device

Abstract

The utility model discloses a rotary tillage blade and a rotary tillage device, and belongs to the technical field of rotary cultivators. The problems that in the prior art, a rotary cultivator is poor in soil penetrating effect, shaking of the rotary cultivator is large, and grass is prone to being wound are solved. Comprising a knife handle and a first blade which are fixedly connected, and a bent second blade is arranged on the first blade close to the knife handle. The rotary tillage blade and the rotary tillage device are used for ploughing a field, when the field is ploughed, after the first blade breaks soil and cuts into the soil, the second blade cuts into the soil along with the first blade, the soil which is ploughed by the first blade is pulled away from the soil which is not ploughed and cut into pieces, the first blade can further go deep into the soil to be ploughed, and the soil breaking and ploughing quality is guaranteed; the first blade and the second blade smoothly break the soil and cut into the soil for plowing, so that the shaking of the rotary cultivator is reduced, the rotary cultivator can stably and uniformly cultivate, the soil breaking and plowing quality is further ensured, the operation difficulty of operators is reduced, and the operation safety is improved; and the second blade cuts up the ploughed grass, so that the rotary cultivator is prevented from winding the grass.

Description

Technical Field

[0001] The utility model belongs to the technical field of rotary tillers, and in particular relates to a rotary tiller blade and a rotary tiller device. Background Art

[0002] A rotary tiller is a tilling machine used in conjunction with a tractor to perform plowing and harrowing operations. It is widely used due to its strong soil-breaking capabilities and smooth surface finish. It also breaks up subsurface stubble, facilitating seed drill operations and providing a good seedbed for later sowing.

[0003] A rotary tiller's blades, driven by power, rotate while the machine moves in a straight line. The blades cut into the soil and throw away clumps of soil, which then impact with retaining walls, breaking them up and leveling the surface. Rotary tillers break up the plow base, restore the soil's topsoil structure, improve its water retention capacity, eliminate some weeds, reduce pests and diseases, level the surface, and improve agricultural mechanization standards.

[0004] The current rotary tillers have poor soil-cutting effects, especially when tilling dry land. The blades do not easily cut into the soil, the rotary tillers vibrate violently, the soil crushing quality is poor, and the tillage depth is uneven, which affects the soil turning effect and, in turn, the growth and yield of crops. Moreover, the large vibration of the rotary tiller will increase the energy consumption of the rotary tiller, shorten its service life, increase the difficulty of operation, reduce operational safety, and may even cause safety accidents. The rotary tiller is prone to grass entanglement, which affects the tillage depth and effect. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a rotary tillage blade and a rotary tillage device to improve the soil cutting effect, reduce the shaking of the rotary tiller, ensure the quality of soil crushing, and prevent the rotary tillage blade from being entangled with grass.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] The rotary tillage blade disclosed in the utility model comprises a fixedly connected handle and a curved first blade, wherein a curved second blade is arranged at a position of the first blade close to the handle.

[0008] Furthermore, the curved portion of the second blade and the curved portion of the first blade are located on the same side, and the curved direction of the second blade is the same as the curved direction of the first blade.

[0009] Furthermore, the knife handle is provided with a first mounting hole and a second mounting hole.

[0010] Furthermore, the knife handle is provided with an arc-shaped clearance groove, and the clearance groove is located between the first mounting hole and the second mounting hole.

[0011] Furthermore, the first blade and the second blade are provided with reinforcing ribs, and the reinforcing ribs are respectively provided along the length direction of the first blade and the second blade.

[0012] Furthermore, the free end of the shank is chamfered.

[0013] Furthermore, the surfaces of the handle, the first blade and the second blade are all provided with a protective coating.

[0014] Furthermore, the handle, the first blade and the second blade are all steel structural parts, and the second blade is fixedly connected to the first blade by welding or integral molding.

[0015] The rotary tillage device based on the above-mentioned rotary tillage blade structure includes the above-mentioned rotary tillage blade and rotary tillage shaft, the rotary tillage shaft cooperates with the give way groove, and the rotary tillage shaft is evenly spaced with fixing plates, and the fixing plate is provided with through holes that cooperate with the first mounting hole and the second mounting hole. The rotary tillage blades are spirally staggered on the rotary tillage shaft near the fixed plate. The first mounting hole of one rotary tillage blade is arranged opposite to the second mounting hole of the other rotary tillage blade, and the bolts that cooperate with the through holes are passed through the corresponding through holes, the first mounting holes and the second mounting holes and are fastened with nuts.

[0016] Furthermore, the rotary tillage blades disposed opposite to each other on adjacent fixed plates have at least a pair of second blades disposed opposite to each other.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The rotary tillage blade provided by the utility model is provided with a curved second blade at a position of the first blade close to the blade handle. The second blade is used in conjunction with the first blade. After the rotary tillage blade is installed in the rotary tillage device, when the operator uses the rotary tiller installed with the rotary tillage blade to plow the field, the rotary tiller is started, and the transmission mechanism drives the rotary tillage shaft to rotate, which drives the rotary tillage blade to rotate. After the first blade breaks the soil and cuts into the soil, the second blade follows the first blade and cuts into the plowed soil, pulling the plowed soil cut by the first blade away from the unplowed soil and cutting it into pieces, which is conducive to the first blade to further penetrate the soil for plowing and reduces the shaking of the rotary tiller. , making the tillage depth uniform and ensuring the quality of soil crushing and tillage; the first blade and the second blade smoothly break the soil and cut into the soil for tillage, reducing the vibration of the rotary tiller, the first blade and the second blade cut into the soil with a better grip, further reducing the vibration of the rotary tiller, the rotary tiller plows stably and evenly, further ensuring the quality of soil crushing and tillage, which is beneficial to the growth of crops; the vibration of the rotary tiller is reduced, the energy consumption of the rotary tiller is reduced, the service life of the rotary tiller is increased, and the operating difficulty of the operator is reduced, improving the operational safety; the second blade cuts the grass that appears during the tillage process, avoiding the rotary tillage blade from being entangled with grass, ensuring the tillage depth and effect. The utility model also provides a rotary tillage device, which is not easy to be entangled with grass, the rotary tiller shakes less, the soil crushing quality is good, and the tillage effect is good. The rotary tillage blade and rotary tillage device are used for field tillage, especially for dry land tillage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic structural diagram of a rotary tillage blade provided by an embodiment of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the rotary tillage device provided by an embodiment of the utility model;

[0022] Figure 3 This is a schematic diagram of the assembly of the rotary tillage blade provided by an embodiment of the utility model.

[0023] Figure numerals: handle 1, second blade 2, first blade 3, reinforcing rib 4, second mounting hole 5, clearance groove 6, first mounting hole 7, rotary tiller shaft 8, fixing plate 9, bolt 10. DETAILED DESCRIPTION

[0024] To make the purpose, technical solution, and advantages of the present invention more clear, the technical solution of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] like Figure 1 、 Figure 2 As shown, this embodiment provides a rotary tiller blade, comprising a fixedly connected handle 1 and a curved first blade 3, wherein a curved second blade 2 is provided at a position of the first blade 3 near the handle 1. The first blade 3 and the second blade 2 are curved toward the handle. The handle 1 and the first blade 3 are an integrally formed structure, and the second blade 2 is provided at a position on the first blade 3 near the handle 1, or the second blade 2 is provided at a position on the handle 1 near the first blade 3, or the second blade 2 is provided on the handle 1 and the first blade 3, such as at the connection portion between the handle 1 and the first blade 3. The curved portion of the second blade 2 is located on the same side as the curved portion of the first blade 3 or on opposite sides.

[0027] The rotary tillage blade based on the above structure is provided with a curved second blade 2 at a position close to the handle 1 of the first blade 3. The second blade 2 is used in conjunction with the first blade 3. After the rotary tillage blade is installed in the rotary tillage device, when the operator uses the rotary tiller installed with the rotary tillage blade to plow the field, the rotary tiller is started, and the transmission mechanism drives the rotary tillage shaft to rotate, which drives the rotary tillage blade to rotate. After the first blade 3 breaks through the soil and cuts into the soil, the second blade 2 follows the first blade 3 and cuts into the soil that the first blade 3 cuts into, pulling the soil that the first blade 3 cuts into and breaking it up from the un-plowed soil, which is conducive to the first blade 3 to further penetrate into the soil and plow, reducing The rotary tiller vibrates, ensuring a uniform tillage depth and high-quality soil crushing and tillage. The first blade 3 and the second blade 2 smoothly break through the soil and till the soil, reducing vibration. The first blade 3 and the second blade 2 cut into the soil for better grip, further reducing vibration, and the rotary tiller achieves stable and uniform tillage, further ensuring high-quality soil crushing and tillage, which is beneficial to crop growth. Reduced vibration reduces energy consumption and increases the service life of the rotary tiller, while also reducing operator difficulty and improving operational safety. The second blade 2 shreds grass that appears during the tillage process, preventing the rotary tiller blade from tangling with grass, ensuring a high-quality tillage depth. This rotary tiller blade is particularly suitable for tilling dry land.

[0028] As an implementable method, Figure 1 、 Figure 2As shown, the curved portion of the second blade 2 and the curved portion of the first blade 3 are located on the same side, and the curved direction of the second blade 2 is the same as the curved direction of the first blade 3 .

[0029] The curved portion of the second blade 2 is located on the same side as the curved portion of the first blade 3 and is curved in the same direction. When plowing the field, after the first blade breaks through the soil and cuts into it, the second blade 2 follows the first blade 3 and cuts into the soil, pulling the plowed soil cut by the first blade 3 away from the unplowed soil and breaking it up. The second blade 2 pulls and breaks up the plowed soil cut by the first blade 3 of its corresponding rotary tiller blade. The curved portion of the second blade 2 is located on opposite sides of the curved portion of the first blade 3. The second blade 2 pulls and breaks up the plowed soil cut by the first blade 3 of the other rotary tiller blade, and there is no guarantee that the first blade 3 of the other rotary tiller blade has already cut into the plowed soil, which affects the effectiveness of the second blade 2 in pulling and breaking up the soil.

[0030] As an implementable method, Figure 1 、 Figure 2 As shown, the knife handle 1 is provided with a first mounting hole 7 and a second mounting hole 5 .

[0031] The first mounting holes 7 and the second mounting holes 5 are drilled or molded at intervals along the length direction of the blade handle 1, and fastening bolts are used for circumferential positioning to avoid loosening and misalignment, thereby improving the reliability of the fastening installation of the rotary tillage blade.

[0032] As an implementable method, Figure 1 、 Figure 2 As shown, the hilt 1 is provided with an arc-shaped clearance groove 6 , and the clearance groove 6 is located between the first mounting hole 7 and the second mounting hole 5 .

[0033] The edge of the handle 1 in the length direction is processed or the mold is provided with a clearance groove 6. The setting of the clearance groove 6 is used to provide installation space when installing the rotary tiller blade. The clearance groove 6 is stuck on the rotary tiller shaft 8, which is conducive to the fixed installation of the rotary tiller blade, ensuring the smooth assembly of the rotary tiller blade and the rotary tiller shaft 8, improving the integrity of the assembly, and ensuring the assembly quality.

[0034] As an implementable method, Figure 1 、 Figure 2 As shown, the first blade 3 and the second blade 2 are provided with reinforcing ribs 4, and the reinforcing ribs 4 are respectively provided along the length direction of the first blade 3 and the second blade 2.

[0035] The provision of the reinforcing ribs 4 provides additional support to the first blade 3 and the second blade 2, thereby improving the rigidity, strength and bearing capacity of the first blade 3 and the second blade 2, preventing the first blade 3 and the second blade 2 from deformation and damage due to stress, and improving the service life of the rotary tillage blade. The reinforcing ribs 4 are steel bars welded to the first blade 3 and the second blade 2. Furthermore, reinforcing ribs 4 are provided on both sides of the first blade 3 and the second blade 2, such as symmetrically providing reinforcing ribs 4 on the front and back sides of the first blade 3 and the second blade 2, thereby further improving the rigidity, strength and bearing capacity of the first blade 3 and the second blade 2. Furthermore, reinforcing ribs are provided in the length direction of the shank 1, similar to the reinforcing ribs 4 of the first blade 3 and the second blade 2, thereby improving the overall rigidity, strength and bearing capacity of the rotary tillage blade.

[0036] As an implementable method, Figure 1 、 Figure 2 As shown, the free end of the shank 1 is chamfered.

[0037] The free end of the knife handle 1 is the other end of the knife handle 1 that is fixedly connected to the first blade 3 .

[0038] As an embodiment, the surfaces of the knife handle 1 , the first blade 3 and the second blade 2 are all provided with a protective coating.

[0039] The surfaces of the handle 1, the first blade 3 and the second blade 2 are all provided with a protective coating such as a paint layer to protect the handle 1, the first blade 3 and the second blade 2, improve the corrosion resistance of the handle 1, the first blade 3 and the second blade 2, improve the protective performance of the handle 1, the first blade 3 and the second blade 2, and extend the service life of the rotary tillage blade.

[0040] As an implementation method, the handle 1, the first blade 3 and the second blade 2 are all steel structural parts, and the second blade 2 is welded or integrally formed and fixedly connected to the first blade 3.

[0041] The second blade 2 is welded and fixed on the first blade 3 or the second blade 2 and the first blade 3 are integrally formed and fixed.

[0042] like Figure 1 、 Figure 2 、 Figure 3As shown, the rotary tillage device based on the above-mentioned rotary tillage blade structure includes the above-mentioned rotary tillage blade and rotary tillage shaft 8, the rotary tillage shaft 8 cooperates with the give way groove 6, and the rotary tillage shaft 8 is evenly spaced with fixing plates 9, and the fixing plate 9 is provided with a through hole that cooperates with the first mounting hole 7 and the second mounting hole 5. The rotary tillage blades are spirally staggered on the rotary tillage shaft 8 near the fixed plate 9, and the first mounting hole 7 of one rotary tillage blade is arranged opposite to the second mounting hole 5 of the other rotary tillage blade. The bolt 10 that cooperates with the through hole, the first mounting hole 7 and the second mounting hole 5 passes through the corresponding through hole, the first mounting hole 7 and the second mounting hole 5 and is fastened with a nut.

[0043] The rotary tillage blades are arranged in a spiral staggered manner to ensure that during the rotation of the rotary tillage shaft 8, a knife must cut into the soil at the same phase angle, ensuring the working stability of the rotary tiller and the uniform load of the rotary tillage shaft 8, reducing the shaking of the rotary tiller. The staggered rotary tillage blades are conducive to breaking up the soil and grass, reducing the grass entanglement of the rotary tillage device, and ensuring the tillage depth and effect. For example, three rotary tillage blades are evenly and spirally stacked along the rotary tillage blade shaft 8, the give way groove 6 of the first rotary tillage blade is stuck on the rotary tillage blade shaft 8 and is close to the fixed plate 9, the first mounting hole 7 and the second mounting hole 5 of the first rotary tillage blade are opposite to the through holes corresponding to the fixed plate 9, the second rotary tillage blade is stuck on the rotary tillage blade shaft 8 and is located on the first rotary tillage blade, the second mounting hole 5 of the second rotary tillage blade is opposite to the first mounting hole 7 of the first rotary tillage blade, the first mounting hole 7 of the second rotary tillage blade is opposite to the through hole corresponding to the fixed plate 9, the third rotary tillage blade is stuck on the rotary tillage blade shaft 8 and is located on the second rotary tillage blade, the second mounting hole 5 of the third rotary tillage blade is opposite to the first mounting hole 7 of the second rotary tillage blade, and the first mounting hole 7 of the third rotary tillage blade is opposite to the through hole corresponding to the fixed plate 9 The first bolt passes through the first mounting hole 7 of the third rotary tillage blade, the second mounting hole 5 of the first rotary tillage blade, and the corresponding through hole of the fixing plate 9, and is initially fastened with the nut. The second bolt passes through the second mounting hole 5 of the second rotary tillage blade, the first mounting hole 7 of the first rotary tillage blade, and the corresponding through hole of the fixing plate 9, and is initially fastened with the nut. The third bolt passes through the second mounting hole 5 of the third rotary tillage blade, the first mounting hole 7 of the second rotary tillage blade, and the corresponding through hole of the fixing plate 9, and is initially fastened with the nut. After adjusting the installation dimensions, tighten the first bolt, the second bolt, and the third bolt, and then assemble the rotary tillage blade on the next fixing plate 9. When the assembly of the rotary tillage blades on the four fixing plates 9 is completed, the installation of the rotary tillage device is completed. The rotary tiller using this rotary tillage device is not easy to entangle with grass, the rotary tiller has little vibration, the soil crushing quality is good, and the tillage effect is good. The fit is the installation size fit such as clearance fit, interference fit, and transition fit.

[0044] As an implementable method, Figure 1 、 Figure 2As shown, the rotary tillage blades disposed opposite to each other on adjacent fixing plates 9 have at least a pair of second blades 2 disposed opposite to each other.

[0045] The rotary tillage blades assembled on adjacent fixed plates 9 have at least one second blade 2 facing each other on one side and the other side, such as two second blades 2 on one side facing each other, and the second blades 2 cut into the plowed soil at both ends and pull away and cut into pieces the un-plowed soil, while cutting into pieces the grass that appears during the plowing process, avoiding the rotary tillage blades from being entangled with the grass, which is beneficial to the stability of the rotary tiller and reduces the shaking of the rotary tiller.

[0046] The above is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rotary tillage blade comprising a fixedly connected handle (1) and a curved first blade (3), characterized in that: A curved second blade (2) is provided at a position of the first blade (3) close to the knife handle (1).

2. The rotary tillage blade according to claim 1, characterized in that: The curved portion of the second blade (2) and the curved portion of the first blade (3) are located on the same side, and the curved direction of the second blade (2) is the same as the curved direction of the first blade (3).

3. The rotary tillage blade according to claim 1 or 2, characterized in that: The knife handle (1) is provided with a first mounting hole (7) and a second mounting hole (5).

4. The rotary tillage blade according to claim 3, characterized in that: The knife handle (1) is provided with an arc-shaped clearance groove (6), and the clearance groove (6) is located between the first mounting hole (7) and the second mounting hole (5).

5. The rotary tillage blade according to claim 4, characterized in that: The first blade (3) and the second blade (2) are provided with reinforcing ribs (4), and the reinforcing ribs (4) are respectively arranged along the length direction of the first blade (3) and the second blade (2).

6. The rotary tillage blade according to claim 5, characterized in that: The free end of the knife handle (1) is chamfered.

7. The rotary tillage blade according to claim 6, characterized in that: The surfaces of the knife handle (1), the first blade (3) and the second blade (2) are all provided with a protective coating.

8. The rotary tillage blade according to claim 7, characterized in that: The knife handle (1), the first blade (3) and the second blade (2) are all steel structural parts, and the second blade (2) and the first blade (3) are fixedly connected by welding or integral molding.

9. A rotary tillage device, characterized in that: The invention comprises the rotary tiller blade and rotary tiller shaft (8) as claimed in claim 8, wherein the rotary tiller shaft (8) cooperates with the give way groove (6), and the rotary tiller shaft (8) is evenly spaced with fixing plates (9), and the fixing plate (9) is provided with through holes that cooperate with the first mounting hole (7) and the second mounting hole (5), and the rotary tiller blades are spirally staggered on the rotary tiller shaft (8) near the fixing plate (9), and the first mounting hole (7) of one rotary tiller blade is arranged opposite to the second mounting hole (5) of another rotary tiller blade, and the bolts (10) that cooperate with the through holes pass through the corresponding through holes, the first mounting hole (7) and the second mounting hole (5) and are fastened with nuts.

10. The rotary tillage device according to claim 9, characterized in that: The rotary tillage blades disposed opposite to each other on adjacent fixed plates (9) have at least a pair of second blades (2) disposed opposite to each other.

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