Grass chopping cultivator

Abstract

The utility model discloses a grass chopping cultivator, belongs to the technical field of cultivators, and solves the problem that the ploughing efficiency is reduced due to the fact that an existing cultivator cannot carry out grass chopping operation. The machine comprises a rack, a grass chopping assembly and a rotary tillage assembly used for ploughing are arranged at the front end and the rear end of the interior of the rack respectively, the grass chopping assembly and the rotary tillage assembly are both in transmission connection with a power assembly, and the power assembly is fixed to the rack and used for driving the grass chopping assembly and the rotary tillage assembly to rotate; the grass chopping assembly comprises at least one grass chopping cutter shaft which is transversely and rotatably arranged on the machine frame, and a plurality of grass chopping blades are fixed to each grass chopping cutter shaft. Residual crops such as corn straw, rice straw or other weeds in the field are smashed through the multiple rotary grass smashing blades on the grass smashing assembly, so that grass is reduced or prevented from being wound on the rotary tillage assembly, the time for workers to clean the grass is shortened, and the ploughing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cultivators, in particular to a grass-chopping cultivator. Background Art

[0002] Existing cultivators play an important role in agricultural machinery. They are mainly used for land preparation before tilling. The soil is turned, broken and leveled by rotating blades to create good soil conditions for subsequent sowing. However, in actual operation, rotary tillers often encounter a problem. That is, when performing rotary tillage operations, residual crops such as corn stalks, straw or other weeds in the field are easily entangled in the rotary tillage mechanism, especially between the rotary tillage blade shaft and the blade. These entanglements will not only reduce the efficiency of tilling the land, increase the load of the machine, cause the engine to overheat or even damage, but also make the land after rotary tillage not flat enough, affecting subsequent planting work. In addition, cleaning these entanglements often requires stopping the machine for manual processing, which not only consumes valuable time and increases the workload of farmers, but also may bring certain safety hazards.

[0003] In order to solve the above problems, a combined compound operation inter-row tillage mechanical seedling weeder is disclosed in the announcement No. CN218006917U, which is provided with a weeding shovel at the bottom. Although it can weed, the dust shovel can only shovel out the grass but cannot chop it, so the weeds are still easily entangled on the rotary tillage blade shaft. Utility Model Content

[0004] In view of the above problems in the prior art, the utility model provides a grass-chopping cultivator, which solves the problem that the existing cultivators are unable to perform grass-chopping operations, resulting in reduced tillage efficiency.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A grass chopping and tilling machine is provided, comprising a frame, wherein a grass chopping assembly and a rotary tilling assembly for tilling land are respectively arranged at the front and rear ends inside the frame, the grass chopping assembly and the rotary tilling assembly are both transmission-connected with a power assembly, the power assembly is fixed on the frame and is used to drive the grass chopping assembly and the rotary tilling assembly to rotate; the grass chopping assembly comprises at least one grass chopping knife shaft rotatably arranged on the frame, and each grass chopping knife shaft is fixed with a plurality of grass chopping blades.

[0007] The working principle of this solution is that the frame moves under the drive of the traction device, and the power component drives the grass chopping component and the rotary tillage component to rotate. The multiple rotating grass chopping blades on the grass chopping component break up the residual crops in the field, such as corn stalks, straw or other weeds, thereby reducing or avoiding the grass from being entangled in the rotary tillage component, reducing the time for workers to clean the grass and improving the efficiency of tillage.

[0008] Furthermore, the frame is a cuboid structure with a hollow interior, and both the bottom of the frame and the side close to the straw crushing component are open.

[0009] Furthermore, the straw crushing component includes two axle discs rotatably arranged on both sides inside the frame. One of the axle discs is in transmission connection with the power component, and three straw crushing knife shafts are arranged between the two axle discs in a circumferential distribution. By setting two axle discs and three straw crushing knife shafts, the straw crushing load can be more evenly distributed, improving the straw crushing efficiency. Moreover, compared with a single straw crushing knife shaft with a larger diameter, the three straw crushing knife shafts with smaller diameters have a lower weight, which is beneficial for the power component to drive.

[0010] Furthermore, a plurality of first knife boxes are welded on each straw crushing knife shaft. The plurality of first knife boxes correspond to a plurality of straw crushing blades one by one, and each straw crushing blade is fixed on the corresponding first knife box. Using the first knife box to fix the straw crushing blade makes the replacement of the straw crushing blade more convenient and fast.

[0011] Furthermore, each straw crushing blade includes 1 straight blade and 2 bent blades. The 2 bent blades are respectively located on both sides of the straight blade, and the straight sections of the 2 bent blades and the bottom of the straight blade are fixed in the first knife box through bolts. The combined design of the straight blade and the bent blades can cut residues of different textures more effectively. In particular, the bent blades can better handle long-fiber crops and reduce the entanglement phenomenon.

[0012] Furthermore, the included angle between the straight section and the bent section of each bent blade is 20°. The 20° included angle design makes the bent blade convenient for cutting and disperses the grass to both sides, reducing the central accumulation, thereby improving the straw crushing efficiency.

[0013] Furthermore, the rotary tillage component includes a rotary tillage knife shaft rotatably arranged horizontally on the frame. The rotary tillage knife shaft is in transmission connection with the power component, and a plurality of rotary tillage blade groups are arranged on the rotary tillage knife shaft. The combination of left-handed blades and right-handed blades can cooperate with each other, reduce the resistance of the soil to the blades, make the rotary tillage process smoother, and improve the flatness of the soil at the same time.

[0014] Furthermore, each rotary tillage blade group includes an adjacent left-handed blade and a right-handed blade. The left-handed blade and the right-handed blade are both fixed on the rotary tillage knife shaft through a second knife box.

[0015] Furthermore, the ends of the left-handed blade and the right-handed blade are bent at an angle of 27° with respect to the blade body. The 27° bending angle design helps the blade better cut into the soil and throw the soil to both sides, avoiding the accumulation of soil between the blades and further improving the rotary tillage effect.

[0016] Furthermore, the power assembly includes a motor fixed to the top of the frame. The output shaft of the motor is fixedly connected to the input end of a double-output shaft speed reducer. The two output shafts of the double-output shaft speed reducer are respectively connected to the straw crushing assembly and the rotary tillage assembly through chain drives. The motor drives the straw crushing assembly and the rotary tillage assembly respectively through the double-output shaft speed reducer, and the working speeds of the two parts can be independently adjusted to optimize the overall working efficiency.

[0017] The utility model discloses a straw crushing and intertillage machine, and its beneficial effects are as follows:

[0018] In the utility model, multiple rotating straw crushing blades on the straw crushing assembly break up the residual crops in the field, such as corn straws, rice straws or other weeds, etc., thereby reducing or avoiding the entanglement of the straws on the rotary tillage assembly, reducing the time for workers to clean the straws, and improving the tillage efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the straw crushing and intertillage machine;

[0020] Figure 2 is a bottom view of the straw crushing and intertillage machine;

[0021] Figure 3 is a schematic structural diagram of the straw crushing blade;

[0022] Figure 4 is a front view of the straw crushing and intertillage machine;

[0023] Figure 5 is an internal schematic diagram of the straw crushing and intertillage machine;

[0024] Figure 6 is an isometric view of the straw crushing and intertillage machine;

[0025] Wherein: 1. Frame; 11. Chain baffle; 2. Straw crushing assembly; 21. Axial disc; 22. Straw crushing knife shaft; 23. First knife box; 24. Straw crushing blade; 241. Straight blade; 242. Curved blade; 3. Rotary tillage assembly; 31. Rotary tillage knife shaft; 32. Second knife box; 33. Rotary tillage blade group; 331. Left-handed blade; 332. Right-handed blade; 4. Power assembly; 41. Motor; 42. Double-output shaft speed reducer. SPECIFIC EMBODIMENTS

[0026] The following describes the specific embodiments of the present utility model to facilitate the understanding of those skilled in the art of the present technology. However, it should be clear that the present utility model is not limited to the scope of the specific embodiments. For those ordinary skilled in the art of the present technology, as long as various changes are within the spirit and scope of the present utility model defined and determined by the appended claims, these changes are obvious, and all the utility models created using the concept of the present utility model are within the scope of protection.

[0027] This embodiment provides a straw crushing intertiller, which crushes residual crops in the field, such as corn straw, rice straw or other weeds, through multiple rotating straw crushing blades 24 on the straw crushing component 2, thereby reducing or avoiding the entanglement of straw on the rotary tillage component 3, reducing the time for workers to clean the straw, and solving the problem that the existing intertiller reduces the tillage efficiency due to the inability to perform straw crushing operations.

[0028] Reference Figure 1 , a straw crushing intertiller, including a frame 1, a straw crushing component 2, a rotary tillage component 3 and a power component 4.

[0029] The frame 1 has a cuboid structure with a hollow interior and is used for fixedly connecting with a traction device. The traction device in this embodiment can be a tractor. Both the bottom of the frame 1 and one side close to the straw crushing component 2 are provided with openings.

[0030] The straw crushing component 2 is used for crushing straw, is rotatably installed on both side walls of the frame 1, and is close to the front inside the frame 1.

[0031] The rotary tillage component 3 is used for tilling the land, is rotatably installed on both side walls of the frame 1, and is close to the rear inside the frame 1.

[0032] Reference Figure 6 , the power component 4 includes a motor 41 fixed on the top of the frame 1. The output shaft of the motor 41 is fixedly connected to the input end of a double-output shaft speed reducer 42. The two output shafts of the double-output shaft speed reducer 42 are respectively connected to the axle disc 21 of the straw crushing component 2 and the rotary tillage shaft 31 of the rotary tillage component 3 by chain drives. The motor 41 drives the straw crushing component 2 and the rotary tillage component 3 respectively through the double-output shaft speed reducer 42, and can independently adjust the working speeds of the two parts to optimize the overall working efficiency.

[0033] In this embodiment, chain guards 11 are provided on both sides of the frame 1, and the chain guards 11 prevent sundries from affecting the chain drive connection between the straw crushing component 2 and the rotary tillage component 3 and the double-output shaft speed reducer 42.

[0034] As the specific structure of the straw crushing component 2, reference Figures 2 to 4 , the straw crushing component 2 includes two axle discs 21 rotatably arranged on both sides inside the frame 1. One of the axle discs 21 is in transmission connection with the power component 4. Three straw crushing shafts 22 are arranged in a circumferential distribution between the two axle discs 21. By setting two axle discs 21 and three straw crushing shafts 22, the straw crushing load can be more evenly distributed, improving the straw crushing efficiency. And compared with a single straw crushing shaft 22 with a larger diameter, the three straw crushing shafts 22 with smaller diameters have a lower weight, which is beneficial for the power component 4 to drive.

[0035] A plurality of first blade boxes 23 are welded on each grass-chopping blade shaft 22. The plurality of first blade boxes 23 correspond to the plurality of grass-chopping blades 24 in a one-to-one relationship, and each grass-chopping blade 24 is fixed on the corresponding first blade box 23. The first blade box 23 is used to fix the grass-chopping blades 24, so that the grass-chopping blades 24 are replaced more conveniently and quickly.

[0036] Each grass cutting blade 24 includes a straight blade 241 and two curved blades 242, the two curved blades 242 are respectively located on both sides of the straight blade 241, and the straight sections of the two curved blades 242 and the bottom of the straight blade 241 are fixed in the first blade box 23 by bolts. The combination design of the straight blade 241 and the curved blade 242 can more effectively cut residues of different textures, especially the curved blade 242 can better handle long-fiber crops and reduce entanglement.

[0037] In this embodiment, the angle between the straight section and the bent section of each curved blade 242 is 20°. The 20° angle design makes it easier for the curved blade 242 to cut while dispersing the grass to both sides, reducing accumulation in the center, thereby improving grass cutting efficiency.

[0038] As the specific structure of the rotary tillage assembly 3, refer to Figure 2 and Figure 5 The rotary tillage assembly 3 includes a rotary tillage blade shaft 31 which is rotatably arranged on the frame 1, the rotary tillage blade shaft 31 is transmission-connected with the power assembly 4, and a plurality of rotary tillage blade groups 33 are arranged on the rotary tillage blade shaft 31. The combination of the left-handed blade 331 and the right-handed blade 332 can cooperate with each other to reduce the resistance of the soil to the blade, make the rotary tillage process smoother, and improve the flatness of the soil.

[0039] Each rotary tilling blade group 33 includes a left-handed blade 331 and a right-handed blade 332 that are adjacent to each other. The left-handed blade 331 and the right-handed blade 332 are both fixed to the rotary tilling blade shaft 31 via a second blade box 32 .

[0040] In this embodiment, the ends of the left-handed blade 331 and the right-handed blade 332 are bent at 27° to the blade body. The 27° bending angle design helps the blades to better cut into the soil and throw the soil to both sides, avoiding soil accumulation between the blades, further improving the rotary tillage effect.

[0041] In summary, the working principle of this solution is:

[0042] The frame 1 moves driven by the traction device, and the power component 4 drives the grass chopping component 2 and the rotary tillage component 3 to rotate. The multiple rotating grass chopping blades 24 on the grass chopping component 2 break up the residual crops in the field, such as corn stalks, straw or other weeds, thereby reducing or avoiding the grass being entangled in the rotary tillage component 3, reducing the time for workers to clean the grass and improving the efficiency of tilling the land.

[0043] Although the specific embodiments of the utility model have been described in detail with reference to the accompanying drawings, it should not be construed as limiting the scope of protection of this patent. Within the scope described in the claims, various modifications and variations that can be made by those skilled in the art without creative efforts still fall within the scope of protection of this patent.

Claims

1. A straw chopping intertiller, characterized in that, It includes a frame (1). At the front and rear ends inside the frame (1), a straw crushing component (2) and a rotary tillage component (3) for tilling the land are respectively arranged. The straw crushing component (2) and the rotary tillage component (3) are both in transmission connection with a power component (4). The power component (4) is fixed on the frame (1) and is used to drive the straw crushing component (2) and the rotary tillage component (3) to rotate. The straw crushing component (2) includes at least one straw crushing knife shaft (22) rotatably arranged horizontally on the frame (1). A plurality of straw crushing blades (24) are fixed on each straw crushing knife shaft (22). The straw crushing component (2) includes two shaft discs (21) rotatably arranged on both sides inside the frame (1). One of the shaft discs (21) is in transmission connection with the power component (4). Three straw crushing knife shafts (22) distributed in a circumferential manner are arranged between the two shaft discs (21).

2. The straw chopping intertillage machine according to claim 1, characterized in that, The frame (1) has a cuboid structure with a hollow interior, and the bottom of the frame (1) and one side close to the straw crushing component (2) are both provided with openings.

3. The straw chopping intertiller according to claim 2, characterized in that, A plurality of first knife boxes (23) are welded on each straw crushing knife shaft (22). The plurality of first knife boxes (23) and the plurality of straw crushing blades (24) are in one-to-one correspondence, and each straw crushing blade (24) is fixed on the corresponding first knife box (23).

4. The chopping intertiller according to claim 3, wherein Each straw crushing blade (24) includes 1 straight blade (241) and 2 bent blades (242). The 2 bent blades (242) are respectively located on both sides of the straight blade (241), and the straight sections of the 2 bent blades (242) and the bottom of the straight blade (241) are both fixed in the first knife box (23) by bolts.

5. The mulching intertiller according to claim 4, characterized in that, The included angle between the straight section and the bent section of each bent blade (242) is 20°.

6. The straw chopping intertillage machine according to claim 1, characterized in that, The rotary tillage component (3) includes a rotary tillage knife shaft (31) rotatably arranged horizontally on the frame (1). The rotary tillage knife shaft (31) is in transmission connection with the power component (4), and a plurality of rotary tillage blade groups (33) are arranged on the rotary tillage knife shaft (31).

7. The straw chopping intertillage machine according to claim 6, wherein, Each rotary tillage blade group (33) includes a left-handed blade (331) and a right-handed blade (332) arranged adjacent to each other. The left-handed blade (331) and the right-handed blade (332) are both fixed on the rotary tillage knife shaft (31) through a second knife box (32).

8. The straw chopping intertillage machine according to claim 7, wherein, The ends of the left-handed blade (331) and the right-handed blade (332) are bent at an angle of 27° with respect to the blade body.

9. The chopping cultivator according to claim 1, characterized in that, The power component (4) includes a motor (41) fixed on the top of the frame (1). The output shaft of the motor (41) is fixedly connected to the input end of a double-output shaft speed reducer (42). The two output shafts of the double-output shaft speed reducer (42) are respectively in chain transmission connection with the straw crushing component (2) and the rotary tillage component (3).

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