CN219938879U - Rotary blade structure - Google Patents
Rotary blade structure Download PDFInfo
- Publication number
- CN219938879U CN219938879U CN202222743406.1U CN202222743406U CN219938879U CN 219938879 U CN219938879 U CN 219938879U CN 202222743406 U CN202222743406 U CN 202222743406U CN 219938879 U CN219938879 U CN 219938879U
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- China
- Prior art keywords
- blade
- side cutting
- cutter
- cutting part
- cutter blade
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- 238000005520 cutting process Methods 0.000 claims abstract description 72
- 238000003971 tillage Methods 0.000 claims abstract description 15
- 239000002689 soil Substances 0.000 abstract description 20
- 244000025254 Cannabis sativa Species 0.000 abstract description 18
- 239000010902 straw Substances 0.000 abstract description 16
- 241000196324 Embryophyta Species 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004804 winding Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Soil Working Implements (AREA)
Abstract
The utility model discloses a rotary tillage cutter structure which comprises a bent cutter blade, and further comprises an auxiliary cutter blade, wherein the bent cutter blade is provided with a tangent part and a side cutting part, the auxiliary cutter blade is fixed on the side cutting part, the cutter surface of the auxiliary cutter blade is perpendicular to the cutter surface of the side cutting part, the auxiliary cutter blade is provided with a base part perpendicular to the cutter surface of the auxiliary cutter blade, the base part is provided with a first assembly hole, the corresponding position of the side cutting part is provided with a second assembly hole, and the auxiliary cutter blade is mounted on the side cutting part through a bolt. The utility model has the advantages that: 1. the functions of sliding and cutting grass are strong. 2. The problem that weeds or straws wind the cutter shaft in the operation is solved, and the operation efficiency is improved. 3. The straw and the weeds are cut into shorter sizes, and the straw returning to the field has good soil entering effect.
Description
Technical Field
The utility model relates to a part of a rotary cultivator for farming operation, in particular to a rotary blade cutter structure.
Background
The rotary cultivator for farm cultivation has mainly cutter shaft and blades, cutter seats welded to the cutter shaft and the cutter seats welded to the cutter shaft in spiral line for installing the blades. At present, the structural form of a rotary tillage blade on a rotary cultivator mainly adopts a bent blade, the bent blade adopts a space curve form with a longer cutting edge, the cutting edge of the bent blade can be divided into a tangent blade and a side cutting blade according to the position of the cutting edge, and the tangent blade surface and the side cutting blade surface form an included angle of about 120 degrees at maximum through curve smooth transition. When the cutter shaft drives the blade to rotate, the side cutting edge firstly cuts soil along the advancing direction of the machine tool, the soil is firstly contacted with the cutting edge near the center of the rotary shaft, the edge part of the cutting edge cuts the soil under the action of the curve-shaped cutting edge, and the functions of crushing and throwing the soil are realized through the wedge angle of the inner surface of the tangent part and the side surface of the side cutting part contacted with the cut soil, so that the working tasks of cutting the soil, crushing the soil and turning the soil are completed. Because the side cutting edge of the bent rotary tillage blade is arc-shaped, certain sliding cutting can be generated in the rotation process, part of field weeds can be cut off, and the problem of weed winding is solved to a certain extent.
The presently pushed curved rotary blade has the following disadvantages: 1. the problem that weeds or straws are wound on the cutter shaft during operation is not thoroughly solved, and the rotary tillage cutter shaft must be cleaned up to two hours in general operation, so that the cultivation efficiency is seriously affected. 2. The bent rotary tillage blade has poor grass cutting function, so that the cut straw and weed are longer, the soil entering effect is poor, and the integral effect of returning the straw to the field is affected.
Chinese patent CN103250480a discloses a combination sword rotary tillage sword of not twining grass, through welding grass cutter on rotary tillage blade holder, reduces the blade holder winding, grass cutter can reduce blade holder string grass, winding, but unable reduction arbor twines weeds, straw. Chinese patent CN203912466U discloses an antiwind rotary blade, through installing the winding prevention board on horizontal rotary blade roller, indirectly increase rotary blade axle radius, reduce weeds and straw to the winding of rotary blade roller. The rotary cultivator has the advantages that the rotary blade roller structure needs to be changed, the operation quality of the rotary cultivator is affected, and the structure is complex. In production, a rotary blade with a simple structure and strong grass cutting function is needed to effectively prevent grass winding on the cutter shaft.
Disclosure of Invention
The utility model aims to provide a rotary tillage cutter structure.
The utility model adopts the following technical scheme: the cutting device comprises a bent blade, wherein the bent blade is provided with a tangent part and a side cutting part, the cutting device further comprises a secondary blade, the secondary blade is fixed on the side cutting part at a position close to the tangent part, the blade surface of the secondary blade is perpendicular to the blade surface of the side cutting part, the secondary blade is provided with a base perpendicular to the blade surface of the secondary blade, the base is provided with a first assembly hole, the corresponding position of the side cutting part is provided with a second assembly hole, and the secondary blade is mounted on the side cutting part through a bolt.
The principle is as follows: the bent blade is arranged on the cutter holder, and the cutter holder is arranged on the cutter shaft. According to the rotary tillage cutter structure, the auxiliary blade fixed on the side cutting part is additionally arranged on the basis of the conventional bent blade, which is equivalent to adding a sliding cutting edge which is close to the center of the rotary shaft, so that the sliding cutting grass cutting function in the rotation of the arc-shaped side cutting edge is greatly enhanced in the process that the bent blade normally completes soil cutting, soil breaking and soil turning, the straw and weeds are cut into shorter sizes, and the problem that the straw and the weeds are longer after the conventional bent blade is cut is solved. The auxiliary blades can be arranged singly or in pairs on two sides of the cutter surface of the side cutting part.
An improvement is that the auxiliary blade is provided with a U-shaped cutting edge. The U-shaped cutting edge can realize multidirectional grass cutting when the rotary tillage cutter rotates, so that the grass cutting function is further enhanced.
The utility model has the following advantages: 1. the rotary tillage cutter structure of the utility model enhances the function of sliding and cutting grass. The auxiliary blade fixed on the side cutting part is additionally arranged, which is equivalent to adding a sliding cutting edge which is close to the center of the rotary shaft, and the sliding cutting grass cutting function in the rotation of the arc-shaped side cutting edge is greatly enhanced in the process that the curved blade normally completes soil cutting, soil crushing and soil turning. 2. Because the grass cutting function is strong, the problem that weeds or straws are wound around the cutter shaft in the operation is solved, the grass winding of the rotary tillage cutter shaft does not need to be cleared regularly in the operation, and the operation efficiency is improved. 3. The straw and the weeds are cut into shorter sizes, so that the problems that the straw and the weeds cut by the conventional bent blades are longer and the straw returning to the field has poor soil entering effect are solved.
Drawings
Fig. 1 is a schematic diagram of the structural principle of an embodiment of the present utility model.
Fig. 2 is a schematic view of the principle of the structure of an embodiment of the present utility model (without the secondary blade).
Fig. 3 is a schematic view of a secondary blade embodiment.
Fig. 4 is a schematic view of a structure of an embodiment of the present utility model mounted on a tool holder.
In the figure: the cutter comprises a bent blade 1, a tangent part 2, a side cutting part 3, a secondary blade 4, a base part 5, a first assembly hole 6, a second assembly hole 7, a U-shaped cutting edge 10, a cutter holder 11 and a cutter shaft 12.
Description of the embodiments
As shown in fig. 1 to 4, an embodiment of the present utility model includes a curved blade 1, where the curved blade 1 is provided with a tangent part 2 and a side cutting part 3, and further includes a sub blade 4, where the sub blade 4 is fixed to the side cutting part 3 at a position near the tangent part 2, the blade surface of the sub blade 4 is perpendicular to the blade surface of the side cutting part 3, the sub blade 4 is provided with a base 5 perpendicular to the blade surface of the sub blade 4, the base 5 is provided with a first assembly hole 6, the side cutting part 3 is provided with a second assembly hole 7 at a corresponding position, and the sub blade 4 is mounted to the side cutting part 3 by a bolt.
The principle is as follows: the bent blade 1 is arranged on a blade holder 11, and the blade holder 11 is arranged on a cutter shaft 12. According to the rotary tillage cutter structure, the auxiliary blade 4 fixed on the side cutting part 3 is additionally arranged on the basis of the conventional bent blade 1, which is equivalent to adding a sliding cutting edge which is close to the center of the rotary shaft, so that the sliding cutting grass cutting function in the rotation of the bent side cutting edge is greatly enhanced in the process of normally cutting soil, crushing soil and turning soil by the bent blade 1, the cut size of straws and weeds is shorter, and the problem that the cut straws and weeds of the conventional bent blade 1 are longer is solved. This structure is suitable for the structure matching of the conventional bent blade 1, and can be used after a little modification. The sub blades 4 may be individually provided. As shown in fig. 1, the sub-blades 4 may be attached to both sides of the cutting surface of the side cutting portion 3 in pairs.
As shown in fig. 3, a further improvement is that the secondary blade 4 is provided with a U-shaped cutting edge 10. The U-shaped cutting edge 10 can realize multidirectional grass cutting during rotary tillage operation, and further enhances the grass cutting function.
The utility model is not limited to the specific structure of the above embodiment, and equivalent transformation of other similar structures falls within the protection scope of the utility model.
Claims (2)
1. The utility model provides a rotary tillage sword structure, includes curved blade, curved blade is equipped with tangent part and side cutting part, its characterized in that: the auxiliary blade is fixed on the side cutting part at a position close to the tangent part, the auxiliary blade surface is perpendicular to the side cutting part surface, the auxiliary blade is provided with a base perpendicular to the auxiliary blade surface, the base is provided with a first assembly hole, the side cutting part is provided with a second assembly hole at a corresponding position, and the auxiliary blade is mounted on the side cutting part through a bolt.
2. The rotary blade structure according to claim 1, wherein: the auxiliary blade is provided with a U-shaped cutting edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222743406.1U CN219938879U (en) | 2022-10-19 | 2022-10-19 | Rotary blade structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222743406.1U CN219938879U (en) | 2022-10-19 | 2022-10-19 | Rotary blade structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219938879U true CN219938879U (en) | 2023-11-03 |
Family
ID=88534846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222743406.1U Active CN219938879U (en) | 2022-10-19 | 2022-10-19 | Rotary blade structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219938879U (en) |
-
2022
- 2022-10-19 CN CN202222743406.1U patent/CN219938879U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |