Cutting assembly and cutting mechanism with same

Abstract

The utility model provides a cutting assembly and a cutting mechanism with the same, and belongs to the field of cotton stalk harvesting. The problems that the tearing force is not uniform, the cutting efficiency is low and the cutter head is easy to damage during cotton stalk harvesting are solved. The cutting assembly comprises a low-speed cutting part and a high-speed cutting part, and the near-ground side of the low-speed cutting part is rotationally provided with; and the multiple protection cutting parts are arranged on the peripheral side of the high-speed cutting part, and the diameter of a virtual circle formed by the outermost side edges of the multiple protection cutting parts is larger than that of the low-speed cutting part. The harvester is mainly used for harvesting cotton stalks.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of cotton stalk harvesting, especially relates to a cutting assembly and cutting mechanism with same. BACKGROUND

[0002] In the field of agricultural production, with the continuous expansion of cotton planting scale, the harvesting of cotton stalks has become an important task. The traditional cotton stalk harvesting method mainly relies on manual operation, which is low in efficiency and high in labor intensity, and is limited by manual operation skills and physical strength, and is difficult to meet the needs of large-scale cotton planting.

[0003] In order to improve the efficiency of cotton stalk harvesting, mechanized cotton stalk harvesting machines have emerged. However, there are many technical problems in the cutting part of the existing cotton stalk harvesting machines that need to be solved. The cutting device of many harvesting machines adopts the design of equal speed and same size of upper and lower cutter heads, which leads to the accumulation of cotton stalks in the cutting area in actual operation, and the tearing force of cotton stalks in the cutting process is uneven, which makes the cutting surface of cotton stalks irregular, and the fiber is seriously damaged, which not only affects the subsequent processing and utilization value of cotton stalks, but also reduces the cutting efficiency. At the same time, due to the uneven impact force of cotton stalks on the cutter head during cutting, the cutter head edge is seriously worn, the service life is short, and the maintenance cost and replacement frequency of the equipment are increased. In addition, the equal speed and same size design of the cutter head also makes the harvesting machine need larger power to drive the cutter head during operation, which leads to high energy consumption and does not meet the current energy-saving and emission-reducing agricultural development trend. SUMMARY

[0004] Therefore, the utility model aims at providing a cutting assembly and cutting mechanism with same to solve the problems of uneven tearing force, low cutting efficiency and easy damage of cutter head during cotton stalk harvesting.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme, according to one aspect of the utility model, a cutting assembly is provided, comprising:

[0006] The low-speed cutting part is rotationally arranged with the high-speed cutting part on the near-ground side;

[0007] The protection cutting part is arranged with a plurality of and arranged on the circumferential side of the high-speed cutting part, wherein the virtual circle diameter formed by the outermost edge of the plurality of protection cutting parts is greater than the diameter of the low-speed cutting part.

[0008] Further, the rotation speed of the low-speed cutting part is less than that of the high-speed cutting part.

[0009] Further, the low-speed cutting part and the high-speed cutting part are coaxially arranged.

[0010] Further, the high-speed cutting part is rotationally connected with the low-speed cutting part through the rotating shaft. Further, the high-speed cutting part is rotationally connected with the low-speed cutting part through the rotating shaft.

[0011] Further, the low-speed cutting part and the high-speed cutting part are connected with the cutting driving assembly.

[0012] Further, the speed ratio of the high-speed cutting part to the low-speed cutting part is 1.5-2.4.

[0013] According to another aspect of the utility model, provide a cutting mechanism, including above -mentioned a cutting assembly, still include floating support part and fixed support part, floating support part rotation connection in fixed support part one end, floating support part and fixed support part all be provided with cutting assembly, floating support part is used for in certain state when overturning and folding its on cutting assembly.

[0014] Further, the cutting mechanism further comprises a folding driving part, the folding driving part is used for driving the floating support part to rotate relative to the fixed support part.

[0015] Further, the folding driving part is a hydraulic cylinder, the hydraulic cylinder cylinder body is pivoted with the fixed support part, and the hydraulic cylinder hydraulic rod is pivoted with the floating support part.

[0016] Further, the cutting mechanism further comprises a flow dividing part connected with the fixed support part and / or the floating support part, for guiding the crops.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] 1. improve cutting quality: the differential speed setting of the low-speed cutting part and the protective cutting part and the larger radius and higher speed of the protective cutting part make the cotton stalks receive tensile force during cutting, so that the cotton stalks can be cut more neatly and the tearing and fiber damage are reduced;

[0019] 2. improve cutting efficiency: the protective cutting part can cover a larger cutting area and process more cotton stalks in unit time due to the high speed and large radius, and its ability to quickly roll the cotton stalks into the cutting area is like a large gear driving a small gear, which improves the working efficiency of the entire cutting device.

[0020] 3. reduce machine energy consumption, reasonably distribute the work tasks of the low-speed cutting part and the protective cutting part, the protective cutting part is responsible for traction and rapid cutting, the low-speed cutting part assists in cutting, avoids the accumulation of cotton stalks in the cutting area, thereby reduces the cutting resistance and reduces the machine power consumption;

[0021] 4. Prolong the service life of the cutterhead: due to the reasonable stretching and traction of the cotton stalks during cutting, the impact force on the cutterhead is relatively uniform, reducing the situation of excessive local stress, effectively avoiding uneven wear of the cutterhead blade, which is conducive to prolonging the service life of the cutterhead. At the same time, the protection cutting part is used for high-speed cutting, which can be quickly replaced after the protection cutting part is worn, prolonging the service life of the low-speed cutting part and reducing the replacement frequency of the low-speed cutting part, thereby reducing the disassembly and assembly work. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings, which form a part of this description, are included to provide a further understanding of the present application, and are incorporated into and constitute a part of this application. The schematic embodiments of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0023] Figure 1 Figure 1 is a first perspective view of the cutting mechanism according to the present application;

[0024] Figure 2 Figure 2 is a second perspective view of the cutting mechanism according to the present application;

[0025] Figure 3 Figure 3 is a top view of the cutting mechanism according to the present application;

[0026] Figure 4 Figure 4 is a B-B sectional view of the cutting mechanism according to the present application; Figure 3

[0027] Figure 5 is a C-C sectional view of the cutting mechanism according to the present application; Figure 5 Figure 3 Figure 6 is a D-D sectional view of the cutting mechanism according to the present application.

[0028] Figure 6 Figure 3

[0029] Low-speed cutting part 1; high-speed cutting part 2; protection cutting part 3; rotating shaft 4; first gear 5; second gear 6; third gear 7; driving gear 8; driven gear 9; passive gear 10; shaft coupling 11; cutting drive assembly 12; floating support part 13; fixed support part 14; folding drive part 15; flow dividing part 16. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict, and the described embodiments are only part of the embodiments of the present application, not all the embodiments.

[0031] ​​​It should be noted that the description of "left", "right", "left side", "right side", "upper part", "lower part", "top", "bottom" and the like in the utility model are defined based on the position or relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the structure must be constructed and operated in a specific position, therefore, it cannot be understood as a limitation on the utility model. In the description of the utility model, "a plurality of" means two or more, unless otherwise specifically defined.

[0032] In the description of the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection, it can be direct connection, or indirect connection through an intermediate medium, or internal communication of two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0033] According to one aspect of the utility model, a cutting assembly is provided, comprising:

[0034] The low-speed cutting part 1 is provided with the high-speed cutting part 2 on the ground side, and the low-speed cutting part 1 is provided with a cutter head, and a plurality of cutting knives are arranged on the circumferential wall of the cutter head in the axial direction, specifically, the cutting knives are arranged at equal intervals, and different interval types can also be arranged according to actual conditions. The high-speed cutting part 2 is specifically provided with a cutter head, and uniform teeth are arranged on the circumferential side of the cutter head, which can also play a cutting role.

[0035] The protection cutting part 3 is provided with a plurality of protection cutting parts 3 arranged on the circumferential side of the high-speed cutting part 2, wherein the virtual circle diameter formed by the outermost edges of the plurality of protection cutting parts 3 is greater than the diameter of the low-speed cutting part 1. The protection cutting part 3 is arranged on the circumferential side of the bottom of the high-speed cutting part 2 in a circumferentially uniform manner, and is specifically provided in the form of a cutting knife, and the specific shape of the cutting can be reasonably arranged according to actual use.

[0036] In the embodiment, the rotation speed of the low-speed cutting part 1 is less than that of the high-speed cutting part 2. The differential speed setting of the low-speed cutting part and the protection cutting part and the larger radius and higher rotation speed of the protection cutting part make the cotton stalks be stretched when cutting, so that the cotton stalks can be cut more neatly, and the tearing and fiber damage are reduced

[0037] In the embodiment, the low-speed cutting part 1 and the high-speed cutting part 2 are coaxially arranged. Specifically, the low-speed cutting part 1 is provided in a hollow shape, and the high-speed cutting part 2 is rotationally connected to the low-speed cutting part 1 through a rotating shaft 4. The rotating connection is in the form that the rotating shaft 4 is rotationally connected to the low-speed cutting part 1 through a bearing seat. In order to ensure the stability of rotation, a hollow shaft can be integrally formed in the low-speed cutting part 1, and the rotating shaft 4 is rotationally connected to the hollow shaft. In order to realize differential rotation, a first gear 5 is connected to an upper end of the rotating shaft 4, the first gear 5 is connected to a bevel gear at one end of a driven gear shaft 10, a bevel gear at the other end of the driven gear shaft 10 is connected to a gear at one end of a driving gear shaft 8 through a driven gear 9, a third gear 7 at the other end of the driving gear shaft 8 is engaged with a second gear 6, and the second gear 6 is fixed to an end of the rotating shaft 4 away from the high-speed cutting part 2. In this way, when the driving gear shaft 8 rotates, the high-speed cutting part 2 is driven to rotate through the transmission of the third gear 7, the second gear 6 and the rotating shaft 4, and when the driving gear shaft 8 rotates, the low-speed cutting part 1 is driven to rotate through the transmission of the driven gear 9, the driven gear shaft 10 and the first gear 5. Through reasonable transmission ratio setting, the effect of forming a speed difference between the low-speed cutting part 1 and the high-speed cutting part 2 is achieved. Thus, the work tasks of the low-speed cutting part and the protection cutting part are reasonably distributed, the protection cutting part is responsible for traction and rapid cutting, the low-speed cutting part assists in cutting, the accumulation of cotton stalks in the cutting area is avoided, the cutting resistance is reduced, and the power consumption of the machine is reduced.

[0038] In the embodiment, the low-speed cutting part 1 and the high-speed cutting part 2 are both connected to a cutting driving assembly 12. The cutting driving assembly 12 serves as a power source for driving the driving gear shaft 8 to rotate. Specifically, a rotating end of the cutting driving assembly 12 is connected to the driving gear shaft 8 through a shaft coupling 11.

[0039] In the embodiment, the speed ratio of the high-speed cutting part 2 to the low-speed cutting part 1 is 1.5-2.4.

[0040] According to another aspect of the utility model, provide a kind of cutting mechanism, including above-mentioned a kind of cutting assembly, still including floating support part 13 and fixed support part 14, floating support part 13 rotationally connects in one end of fixed support part 14, the cutting assembly is all provided on floating support part 13 and fixed support part 14, the cutting assembly on floating support part 13 is retracted when overturning in certain state.Floating support part 13 and fixed support part 14 adopt the structure that can relatively rotate, can when non-use state, make floating support part 13 rotate a certain angle around fixed support part 14, to play the role of saving space, facilitate to reduce the width occupied during transportation or storage.For this form, the power transmission between the cutting assembly on floating support part 13 and fixed support part 14 is transmitted by coupling 11, the two ends of coupling 11 are connected with driving gear shaft 8 in each cutting assembly by universal joint, and cutting drive assembly 12 is fixedly connected on fixed support part 14 and is connected with driving gear shaft 8 in the cutting assembly close to it, so that driving gear shaft 8 in each cutting assembly can be rotated under the drive of cutting drive assembly 12, while floating support part 13 is retracted, coupling 11 is not influenced.For improving efficiency, two cutting mechanism axes can be arranged symmetrically and then share a cutting drive assembly 12, while multiple rows of cotton stalks can be cut, improving efficiency.

[0041] In the embodiment, the cutting mechanism further comprises a folding driving part 15 for driving the floating support part 13 to rotate relative to the fixed support part 14. The folding driving part 15 is specifically a hydraulic cylinder, the hydraulic cylinder body is pivoted to the fixed support part 14, and the hydraulic cylinder hydraulic rod is pivoted to the floating support part 13.

[0042] In the embodiment, the cutting mechanism further comprises a shunt part 16 connected to the fixed support part 14 and / or the floating support part 13 for guiding crops. The crops such as cotton stalks can quickly and accurately reach the cutting area.

[0043] In use, the driving assembly 12, i.e. the motor, is cut to drive the driving gear shaft 8 to rotate, the driving gear shaft 8 rotates to drive the high-speed cutting part 2 to rotate through the third gear 7, the second gear 6 and the rotating shaft 4, and the driving gear shaft 8 rotates to drive the low-speed cutting part 1 to rotate through the driven gear 9, the passive gear shaft 10 and the first gear 5, and the low-speed cutting part 1 and the high-speed cutting part 2 can form a speed difference effect through reasonable transmission ratio setting. Thus, the work tasks of the low-speed cutting part and the protection cutting part are reasonably distributed, the protection cutting part is responsible for traction and rapid cutting, the low-speed cutting part is responsible for auxiliary cutting, the cotton stalks are prevented from accumulating in the cutting area, the cutting resistance is reduced, and the machine power consumption is reduced. Meanwhile, the protection cutting part 3 can be rapidly cut and protect the low-speed cutting part 1 through the high-speed rotation effect of the protection cutting part 3, the protection cutting part 3 is fixed on the near-ground side of the high-speed cutting part 2 through bolts, and the protection cutting part 3 is convenient to replace, and the replacement frequency of the low-speed cutting part 1 is reduced. When the cutting mechanism as a whole moves forward with the agricultural machine, the flow dividing part 16 can play a guiding role, and the cotton stalks are conveniently guided to the cutting position.

[0044] In a non-use state, the floating support part 13 is driven by the folding driving part 15 to rotate around the pivot joint with the fixed support part 14, for example, to be folded upwards from both sides, so as to reduce the overall width.

[0045] The above disclosed embodiments of the utility model are only used to help explain the utility model. The embodiments do not describe all the details, and the utility model is not limited to the specific embodiments. According to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that the technical personnel in the technical field can well understand and utilize the utility model.

Claims

1. A cutting assembly characterized by, The application relates to a cutting mechanism for cutting crops, which comprises the following parts: a low-speed cutting part (1) provided with a high-speed cutting part (2) on the ground side; a plurality of protection cutting parts (3) arranged on the side of the high-speed cutting part (2), wherein the virtual circle diameter formed by the outermost edges of the plurality of protection cutting parts (3) is greater than the diameter of the low-speed cutting part (1).

2. A cutting assembly according to claim 1, wherein: The rotation speed of the low-speed cutting part (1) is less than that of the high-speed cutting part (2).

3. The cutting assembly of claim 1, wherein: The low-speed cutting part (1) and the high-speed cutting part (2) are coaxially arranged.

4. A cutting assembly according to claim 3, wherein: The high-speed cutting part (2) is rotationally connected with the low-speed cutting part (1) through a rotating shaft (4).

5. The cutting assembly of claim 1, wherein: The low-speed cutting part (1) and the high-speed cutting part (2) are connected with a cutting driving assembly (12).

6. The cutting assembly of claim 1, wherein: The rotation speed ratio of the high-speed cutting part (2) to the low-speed cutting part (1) is 1.5-2.

4.

7. A cutting mechanism comprising a plurality of cutting assemblies as claimed in any one of claims 1 to 6, characterised in that: The cutting mechanism further comprises a floating support part (13) and a fixed support part (14), the floating support part (13) is rotationally connected to one end of the fixed support part (14), the cutting assembly is arranged on the floating support part (13) and the fixed support part (14), and the floating support part (13) is used for folding and storing the cutting assembly on it under a certain state.

8. A cutting mechanism according to claim 7, wherein: The cutting mechanism further comprises a folding driving part (15) for driving the floating support part (13) to rotate relative to the fixed support part (14).

9. A cutting mechanism according to claim 8, wherein: The folding driving part (15) is a hydraulic cylinder, the cylinder body of the hydraulic cylinder is pivotally connected with the fixed support part (14), and the hydraulic rod of the hydraulic cylinder is pivotally connected with the floating support part (13).

10. A cutting mechanism according to claim 8 or 9, characterised in that: The cutting mechanism further comprises a flow dividing part (16) connected with the fixed support part (14) and / or the floating support part (13) and used for guiding crops.

Images