Straw external rotation poking device for wheat drill seeder
By designing a straw external rotation separation device on the wheat seeder, the straw is removed to both sides, which solves the problem of insufficient contact between seeds and soil during wheat sowing, and achieves the effect of efficient sowing and straw covering, avoiding the existing technology fragility and clogging problems.
Patent Information
- Application Number
- CN202320344085.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-02-28
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2033-02-28
AI Technical Summary
In wheat fields, the first stubble rice straw covering causes insufficient contact with the soil when sowing the next stubble wheat, the seeds appear late and the germination rate is low, which affects the yield. The straw crimp assembly in the prior art is fragile, blocked and low coverage rate. The problem.
A straw external rotation disengagement device for wheat seeders is designed, including a disengagement mounting frame and a straw external rotation assembly side by side, equipped with an external rotation disengagement drive device and a straw resistance device, through an external rotation wheel and a disengagement sweeping brush Remove the straw to both sides to maintain soil fluffy and coverage.
Efficient sowing under straw covering conditions is achieved, ensuring full contact with the soil, improving seed quality, avoiding the problems of straw blockage and low coverage rate, and maintaining the fluffy and covering effect of the straw.
Smart Images
Figure CN222235440U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wheat seed drills, in particular to a straw external rotation and separation device for wheat seed drills. Background Art
[0002] Compared with uncovered wheat fields, straw-covered wheat fields have obvious effects in retaining moisture and inhibiting soil. Under the same natural precipitation and bottom moisture conditions, straw covering inhibits soil moisture evaporation and better maintains soil moisture, thereby increasing soil moisture. On the premise of reducing the number of irrigation times, the soil moisture content is still higher than that of uncovered wheat fields. The composting of straw in the soil is also conducive to the increase of carbon dioxide concentration in the field, which has a very obvious effect on enhancing photosynthesis and promoting the synthesis of carbohydrates.
[0003] Rice and wheat are the main crop rotation methods for grain production in Jiangsu Province. When farming in the usual way, the rice straw from the previous crop is broken up and returned to the field, often located in the shallow soil layer or floating on the soil surface. When the subsequent wheat crop is sown, the seeds cannot fully contact the soil, resulting in problems such as late emergence and low germination rate, which affects wheat yield.
[0004] To solve this problem, the prior art discloses an intelligent deep fertilization seeder with rotary tillage in a clean area of a full straw stubble field. This seeder discloses a straw auger assembly, which serves as a straw cleaning mechanism for returning straw to rows. This straw auger assembly includes two augers arranged on the left and right, and the two parallel augers on the left and right correspond to three sowing rows respectively. Before sowing, the straw auger assembly first collects the straw on the surface of the sowing row and transports it to the outside of the side sowing row, so as to achieve the effect of straw cleaning and ensure efficient sowing.
[0005] However, the use of this type of auger to transport and collect straw also has the following disadvantages: 1. The auger is equipped with a straw knife. When the straw knife is used for collection and transportation, the straw is fragile and easy to get stuck in the auger; 2. After the straw enters the auger, the straw will be compacted during transportation, and finally the straw discharged from both sides will be arranged in rows. After the straw is compacted, the fluffiness is not enough, and the thickness of the straw stack is also large, which can no longer achieve the purpose and effect of straw covering; 3. When using an auger to transport the straw, the length of the auger is generally large, and the augers on both sides correspond to multiple rows of sowing rows. After the straw is collected, the straw is concentrated on both sides of the multiple rows of sowing rows, and the straw coverage rate of the multiple rows of sowing rows decreases as a whole, and the purpose and effect of straw covering still cannot be achieved. Utility Model Content
[0006] The technical problem to be solved by the utility model is to provide a straw external rotation and separation device for a wheat seed drill with a simplified structure, which does not damage the fluffiness of the straw and has a relatively high straw coverage rate.
[0007] In order to solve the above technical problems, the technical solution of the utility model is: a straw external rotation and separation device for a wheat seed drill, including a separation mounting frame, on which are mounted two straw external rotation components arranged side by side on the left and right, the two straw external rotation components are located on both sides of the corresponding sowing row and the adjacent sides of the two straw external rotation components are overlapped, and an external rotation and separation drive device is also provided between the separation mounting frame and the straw external rotation components, the external rotation and separation drive device drives the two straw external rotation components to rotate outwards respectively to cooperate in the purpose of externally rotating and separating the surface straw of the sowing row to between the rows on both sides of the sowing row; an external rotation straw blocking device is correspondingly installed on the outer side of each straw external rotation component.
[0008] As a preferred technical solution, the straw external rotation component includes a straw external rotation wheel, the upper part of the straw external rotation wheel is connected to the external rotation wheel shaft, the top of the external rotation wheel shaft is rotatably mounted on the separation mounting frame, and a straw separation brush is installed on the outer circumference of the bottom of the straw external rotation wheel, and the adjacent sides of the straw separation brushes on the left and right straw external rotation components are staggered and overlapped.
[0009] As a preferred technical solution, the straw-removing brush is a straw-removing elastic comb with the bottom end extending obliquely toward the periphery.
[0010] As a preferred technical solution, the straw outer rotating wheel is tilted toward the rear, and the front bottom end of the straw removing brush serves as a sweeping brush action part. The height of the sweeping brush action part is lower than the soil plane and contacts the ground to remove the straw from the surface.
[0011] As a preferred technical solution, the external rotation and peeling drive device includes a peeling drive motor installed on the peeling mounting frame, wherein a driving gear is installed on one of the external rotation wheel shafts, and a driven gear is installed on the other external rotation wheel shaft, the driving gear and the driven gear are meshed with each other, and the corresponding external rotation wheel shaft on which the driving gear is installed is connected to the output end of the peeling drive motor.
[0012] As a preferred technical solution, the externally rotating straw blocking device is arranged on the outer side of the corresponding straw externally rotating wheel, and its length direction is parallel to the sowing belt, forming a straw blocking and removing surface on the outer side of the sowing belt.
[0013] As a preferred technical solution, the externally rotating straw-blocking device includes a straw-blocking mounting frame fixed on the straw-blocking mounting frame, and externally rotating straw-blocking comb teeth are installed on the straw-blocking mounting frame. A plurality of the externally rotating straw-blocking comb teeth are arranged along the length direction of the sowing belt to form the straw-blocking and straw-removing surface on the outer side of the straw-blocking and straw-removing brush. The outer end of the straw-blocking and straw-removing brush passes through the straw-blocking and straw-removing surface of the externally rotating straw-blocking comb teeth and extends to the outer side of the straw-blocking and straw-removing surface. The straw-blocking and straw-removing surface also serves as a brush cleaning part for cleaning the externally rotating straw-blocking comb teeth.
[0014] As a preferred technical solution, the bottom end of the straw-blocking and straw-removing surface of the externally rotating straw-blocking comb teeth is close to the soil surface.
[0015] Due to the adoption of the above technical scheme, the straw external rotation and expelling device for the wheat seed drill comprises an expelling mounting frame, on which two straw external rotation components arranged side by side on the left and right are installed, the two straw external rotation components are located on both sides of the corresponding sowing row and the adjacent sides of the two straw external rotation components are arranged in an overlapping manner, and an external rotation and expelling driving device is also provided between the expelling mounting frame and the straw external rotation components, and the external rotation and expelling driving device drives the two straw external rotation components to rotate outwards respectively to cooperate and expel the surface straw of the sowing row to the space between the two sides of the sowing row; an external rotation straw blocking device is correspondingly installed on the outer side of each straw external rotation component;
[0016] The beneficial effects of the utility model are:
[0017] 1. This machine can remove the straw from the sowing row under the condition of returning the straw to the field, so as to achieve sowing operations without straw and greatly improve the sowing quality. The core of this application technology is to cleverly open up a concentrated straw coverage area in the wheat field, so that the straw not only does not interfere with wheat sowing, but also provides a better microenvironment for wheat growth. By placing the crushed straw on both sides of the row and deep loosening and shallow tillage of the cleaned sowing belt soil for sowing, the requirements of protective tillage and less tillage and land preparation under straw covering conditions are met, the straw content in the soil of the seedling belt is reduced, and the seeds are sown into the soil. The rear-mounted pressing roller ensures the soil shaping and pressing effect.
[0018] 2. In the present application, a straw external rotating wheel is provided on both sides of a sowing row, that is, the two straw external rotating wheels push the straw covering a sowing row to both sides respectively. Compared with the prior art, the straw coverage rate is still relatively high, and the purpose and effect of straw covering can be guaranteed; in addition, in the present application, an external rotating wheel is used to externally rotate the side of the straw, and the straw has a curved path for throwing backwards, and the fluffiness of the straw is better, and the purpose and effect of straw covering can still be achieved; and when the straw is thrown backwards, the length of the straw is not destroyed, the straw covering effect is not affected, and the blockage problem that often exists in the auger in the prior art will not occur. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The following drawings are only intended to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.
[0020] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;
[0021] Figure 2 It is a front view of an embodiment of the utility model;
[0022] Figure 3 It is a rear view of an embodiment of the utility model;
[0023] Figure 4 It is a side view of an embodiment of the utility model;
[0024] Figure 5 is a schematic diagram of an embodiment of the utility model installed on a wheat seed drill;
[0025] In the figure: 1-straw-stripping mounting frame; 2-straw external rotating wheel; 3-external rotating wheel rotating shaft; 4-straw-stripping brush; 5-straw-stripping driving motor; 6-driving gear; 7-driven gear; 8-straw-blocking mounting frame; 9-external rotating straw-blocking comb teeth. DETAILED DESCRIPTION
[0026] The present invention is further described below in conjunction with the accompanying drawings and examples. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Needless to say, those skilled in the art will recognize that the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and descriptions are illustrative in nature and are not intended to limit the scope of protection of the claims.
[0027] See also Figure 5 The invention discloses a straw external rotary separation device for a wheat seed drill, comprising a separation mounting frame 1, which serves as a mounting base of the device. In the present embodiment, the separation mounting frame 1 is fixedly connected to the front of the wheat seed drill, corresponding to each sowing row one by one, and is used to clean the straw of the sowing row first. After the straw is cleaned, a series of operations such as rotary tillage, fertilization, sowing, and suppression are performed.
[0028] See also Figures 1 to 4 The separating mounting frame 1 is provided with two straw external rotation components arranged side by side. The two straw external rotation components are located on both sides of the corresponding sowing row and the adjacent sides of the two straw external rotation components are overlapped. An external rotation separating driving device is also provided between the separating mounting frame 1 and the straw external rotation components. The external rotation separating driving device drives the two straw external rotation components to rotate outwards respectively to rotate the surface straw of the sowing row outwards to the space between the two sides of the sowing row. When the straw is separated, the external rotation separating driving device drives the two straw external rotation components to move simultaneously. The straw external rotation components rotate outwards to separate the surface straw on the sowing row outwards to the space between the two sides of the sowing row. Since the adjacent sides of the two straw external rotation components overlap, the sowing row is fully covered to avoid areas on the surface of the sowing row that are missed.
[0029] See also Figures 1 to 4The straw external rotation component includes a straw external rotation wheel 2, the upper part of the straw external rotation wheel 2 is connected to an external rotation wheel shaft 3, the top of the external rotation wheel shaft 3 is rotatably mounted on the separation mounting frame 1, and the bottom outer circumference of the straw external rotation wheel 2 is installed with a straw separation brush 4, and the external rotation separation driving device drives the external rotation wheel shaft to rotate, thereby driving the straw external rotation wheel 2 and the straw separation brush 4 to rotate. The adjacent sides of the straw separation brushes 4 on the left and right straw external rotation components are arranged in an interlaced and overlapping manner to avoid the missed cleaning area in the middle of the sowing row. The straw separation brush 4 is a separation elastic comb tooth with the bottom end extending obliquely toward the periphery. The separation elastic comb tooth is made of rubber material with certain flexibility and toughness, and has good wear resistance. In this embodiment, since this type of elastic comb teeth for pulling away have certain flexibility and good deformability, the profiling effect can be achieved without adding a profiling device. When the soil surface is uneven, the comb teeth can deform naturally and adapt to the uneven soil well, which does not affect the pulling away effect of the straw, and will not collide with the hard soil. Compared with the auger structure of the prior art, it has the advantages of simplified structure and low cost, and has a self-profiling effect, and the pulling away effect is better. The straw outer rotary wheel 2 is detachably fixedly connected to the outer rotary wheel shaft by bolts, which can facilitate the replacement of the worn elastic comb teeth for pulling away, and when straw cleaning is not needed, the straw outer rotary assembly can also be disassembled, which does not affect the rotary tillage and sowing operations of the wheat planter.
[0030] The straw epicyclic wheel 2 is tilted toward the front and lower part of the whole machine, and the front bottom end of the straw-removing brush 4 serves as a sweeping brush action part, and the height of the sweeping brush action part is lower than the soil plane and contacts the ground to remove the straw on the surface. In this embodiment, the frontmost sweeping brush action part that can contact the ground is to reduce the friction between the spring teeth and the ground in the ineffective stage, so as to increase the service life of the spring teeth.
[0031] The extrorotatory expulsion drive device comprises an expulsion drive motor 5 mounted on the expulsion mounting frame 1, wherein a driving gear 6 is mounted on one of the extrorotatory wheel shafts 3, and a driven gear 7 is mounted on the other extrorotatory wheel shaft 3, the driving gear 6 and the driven gear 7 are meshed with each other, and the corresponding extrorotatory wheel shaft 3 mounted with the driving gear 6 is connected to the output end of the expulsion drive motor 5. The expulsion drive motor 5 can also be a rotary hydraulic cylinder. When the expulsion drive motor 5 is working, it drives the driving gear 6 to rotate, and then drives the driven gear 7 to rotate. The driving gear 6 and the driven gear 7 are respectively fixed on the corresponding extrorotatory wheel shafts 3, and the two extrorotatory wheel shafts 3 are driven to rotate, so that the straw extrorotatory wheel 2 and the straw expulsion brush 4 mounted thereon rotate accordingly. The straw expulsion brush 4 rotates outwardly around the axis to expel the surface straw outwardly.
[0032] In order to prevent the straw that is pushed away from the outside from being brought back into the sowing row by the rotating straw-pushing brush 4, the outer ends of the two straw outer-rotating wheels 2 are respectively equipped with outer-rotating straw-blocking devices, which are arranged on the outer sides of the corresponding straw outer-rotating wheels 2, and the length direction is parallel to the sowing belt, forming a straw-blocking and straw-removing surface on the outer side of the sowing belt. During the straw-pushing process, there is a phenomenon that the straw is retained between the spring teeth, and the straw is easily brought back into the sowing row, making it impossible to achieve the best straw cleaning effect. The straw-blocking and straw-removing surface is arranged on the outer side of the straw outer-rotating wheel 2, which can prevent the straw that splashes backwards from moving toward the sowing row, and is used to reduce the straw from entering the sowing row.
[0033] The externally rotating straw-blocking device includes a straw-blocking mounting frame 8 fixed on the straw-blocking mounting frame 1, and externally rotating straw-blocking comb teeth 9 are installed on the straw-blocking mounting frame 8. A plurality of externally rotating straw-blocking comb teeth 9 are arranged along the length direction of the sowing belt to form the straw-blocking and straw-removing surface on the outer side of the straw-blocking brush 4. The outer end of the straw-blocking brush 4 passes through the straw-blocking and straw-removing surface of the externally rotating straw-blocking comb teeth 9 and extends to the outer side of the straw-blocking and straw-removing surface. The straw-blocking and straw-removing surface also serves as a sweeping brush cleaning part for cleaning the externally rotating straw-blocking comb teeth 9. A plurality of the outer rotating straw-blocking comb teeth 9 are arranged in a row to prevent the straw from splashing backwards and entering the sowing row. At the same time, since the outer rotating straw-blocking comb teeth 9 and the elastic comb teeth for removing are both tooth structures, and the outer end of the straw-sweeping brush 4 passes through the outer side of the straw-blocking and straw-removing surface, a part of the teeth between the two can cross. At this time, even if there is straw left between the straw-sweeping brushes 4, after passing through the straw-blocking and straw-removing surface, when the straw-sweeping brush 4 crosses and contacts with a plurality of the outer rotating straw-blocking comb teeth 9, the gap between the straw-sweeping brushes 4 will open, the remaining straw will fall off, and the outer rotating straw-blocking comb teeth 9 will also fork into the straw-sweeping brushes 4, achieving the effect of cleaning the straw. In addition, the straw-removing surface can also block the straw splashed from the other side when cleaning straw, and avoid the straw from running around between adjacent rows when cleaning multiple rows at the same time, affecting the straw cleaning effect.
[0034] In order to ensure the straw blocking effect, the bottom end of the straw blocking and straw removing surface of the externally rotating straw blocking comb teeth 9 is close to the soil surface, so that the straw blocking and straw removing surface is as large as possible to achieve a better blocking effect; in addition, there is a certain inclination angle between the bottom end of the straw blocking and straw removing surface and the soil surface, that is, the straw blocking and straw removing surface gradually tilts upward from front to back, thereby avoiding the externally rotating straw blocking comb teeth 9 located at the rear from ineffectively contacting the ground, thereby increasing the service life.
[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A straw external rotation separation device for a wheat seed drill, characterized in that: It comprises a separating mounting frame, on which are mounted two straw external rotation assemblies arranged side by side on the left and right, the two straw external rotation assemblies being located on both sides of the corresponding sowing row and the adjacent sides of the two straw external rotation assemblies being overlapped, an external rotation separating driving device being arranged between the separating mounting frame and the straw external rotation assemblies, the external rotation separating driving device driving the two straw external rotation assemblies to rotate outwards respectively to cooperate in separating the surface straw of the sowing row to the space between the two sides of the sowing row; an external rotation straw blocking device being correspondingly mounted on the outer side of each straw external rotation assembly.
2. The straw external rotation separation device for a wheat seed drill according to claim 1, characterized in that: The straw external rotation component includes a straw external rotation wheel, the upper part of which is connected to an external rotation wheel shaft, the top of which is rotatably mounted on the separation mounting frame, a straw separation brush is mounted on the outer circumference of the bottom of the straw external rotation wheel, and adjacent sides of the straw separation brushes on the left and right straw external rotation components are arranged in an interlaced and overlapping manner.
3. The straw external rotation separation device for a wheat seed drill according to claim 2, characterized in that: The straw-stripping brush is a straw-stripping elastic comb with the bottom end extending obliquely toward the periphery.
4. The straw external rotation separation device for a wheat seed drill according to claim 2, characterized in that: The straw outer rotating wheel is tilted toward the rear, and the front bottom end of the straw removing brush serves as a sweeping brush action part. The height of the sweeping brush action part is lower than the soil plane and contacts the ground to remove the straw from the surface.
5. The straw external rotation separation device for a wheat seed drill according to claim 2, characterized in that: The external rotation and peeling drive device includes a peeling drive motor installed on the peeling mounting frame, wherein a driving gear is installed on one of the external rotation wheel shafts, and a driven gear is installed on the other external rotation wheel shaft, the driving gear and the driven gear are meshed with each other, and the corresponding external rotation wheel shaft on which the driving gear is installed is connected to the output end of the peeling drive motor.
6. The straw external rotation separation device for a wheat seed drill according to claim 2, characterized in that: The externally rotating straw blocking device is arranged on the outer side of the corresponding straw externally rotating wheel, and the length direction is parallel to the sowing belt, forming a straw blocking and removing surface on the outer side of the sowing belt.
7. The straw external rotation separation device for a wheat seed drill according to claim 6, characterized in that: The externally rotating straw-blocking device includes a straw-blocking mounting frame fixed on the straw-blocking mounting frame, and externally rotating straw-blocking comb teeth are installed on the straw-blocking mounting frame. A plurality of the externally rotating straw-blocking comb teeth are arranged along the length direction of the sowing belt to form the straw-blocking and straw-removing surface on the outer side of the straw-blocking and straw-removing brush. The outer end of the straw-blocking and straw-removing brush passes through the straw-blocking and straw-removing surface of the externally rotating straw-blocking comb teeth and extends to the outer side of the straw-blocking and straw-removing surface. The straw-blocking and straw-removing surface also serves as a sweeping brush cleaning part for cleaning the externally rotating straw-blocking comb teeth.
8. The straw external rotation separation device for a wheat seed drill according to claim 7, characterized in that: The bottom end of the straw-blocking and straw-removing surface of the externally rotating straw-blocking comb teeth is close to the soil surface.