Anti-winding straw field-returned rotary tillage device

Abstract

The utility model belongs to the field of agricultural engineering technical field, and disclose a kind of anti-winding straw returning to field rotary tiller, including frame, the one end of frame is equipped with driving motor, and the both sides inner wall of frame is rotatably connected with connecting plate, the one end of two connecting plates is fixedly connected with driving shaft in common, the outer surface of driving shaft is equipped with several rotary tiller blades, the driving shaft includes two circular grooves being opened in driving shaft inner surface, the inner surface of two circular grooves is slidably connected with driving table, the inner surface of two connecting plates is equipped with power motor, the utility model is driven shaft is set, under the action of power motor driving screw rod rotation, driving table slides along circular groove and drives connecting block to push cutting knife to extend from accommodating groove, can actively cut off the straw being wound on driving shaft or rotary tiller blade, avoid the problem of work efficiency decline caused by straw winding, without manual shutdown cleaning, reduce operating cost and work time consumption.

Description

Technical Field

[0001] This utility model belongs to the technical field of agricultural engineering, specifically an anti-tangling straw returning rotary tillage device. Background Technology

[0002] In modern agricultural production, straw return to the field is widely used as an important measure to improve soil fertility and achieve sustainable agricultural development. Rotary tillage, as a key step in the straw return process, directly affects the final effect of straw return, thus creating a continuous demand for practical and applicable rotary tillage devices for straw return. To better meet the actual needs of rotary tillage operations for straw return in current agricultural production, an anti-tangling rotary tillage device for straw return has been developed.

[0003] Existing anti-tangling straw return rotary tillage devices often suffer from straw tangling on the drive shaft or rotary tillage blades during use, which is difficult to clean on its own. This leads to a decrease in equipment operating efficiency and requires manual shutdown for cleaning, increasing operating costs and time consumption.

[0004] Therefore, an anti-tangling straw return rotary tillage device is proposed to address the above problems. Utility Model Content

[0005] To address the problems mentioned in the background art, this utility model provides an anti-tangling straw returning rotary tillage device, which has the advantages of eliminating the need for manual shutdown for cleaning, reducing operating costs and operation time, reducing straw friction damage to the drive shaft, extending the service life of components, and further improving the stability and economy of equipment operation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an anti-tangling straw returning rotary tillage device, comprising a frame, a drive motor installed at one end of the frame, and connecting plates rotatably connected to the inner walls of both sides of the frame. A drive shaft is fixedly connected to one end of each of the two connecting plates. A plurality of rotary tillage blades are installed on the outer surface of the drive shaft. The drive shaft includes two circular grooves formed on its inner surface. Drive platforms are slidably connected to the inner surfaces of the two circular grooves. Power motors are installed on the inner surfaces of the two connecting plates. The output ends of the two power motors pass through both ends of the two drive shafts and are fixedly connected to lead screws. The inner surfaces of the two drive shafts are threadedly connected to the two lead screws. Two connecting blocks are slidably connected to the outer surfaces of the two drive platforms. Two receiving grooves are formed on the outer surface of the drive shaft. Cutting blades are provided on the inner surfaces of the two receiving grooves. The two connecting blocks on the same horizontal side are fixedly connected to the cutting blades on the same side.

[0007] Preferably, the two circular grooves are mirror images of each other.

[0008] Preferably, one inner wall of each of the two circular grooves is rotatably connected to one end of each of the two lead screws.

[0009] Preferably, the drive platform is frustum-shaped, and the circular groove is connected to two receiving grooves.

[0010] Preferably, the outer surface of the drive platform has two guide grooves, and one end of each of the two connecting blocks is fixedly connected to a guide block that cooperates with the guide grooves.

[0011] Preferably, the outer surface of the drive shaft is coated with an anti-stick and wear-resistant coating.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, by setting a drive shaft, allows the drive table to slide along the circular groove under the action of the drive screw driven by the power motor, and drives the connecting block to push the cutting blade out of the receiving groove. It can actively cut the straw wrapped around the drive shaft or rotary tiller blade, avoiding the problem of reduced work efficiency caused by straw entanglement. It eliminates the need for manual shutdown for cleaning, reducing operating costs and work time.

[0014] 2. This utility model applies an anti-stick and wear-resistant coating to the outer surface of the drive shaft. By isolating the drive shaft from direct contact with the straw, the coating reduces the adhesion of straw to the drive shaft surface, thereby reducing the probability of entanglement from the source. This, combined with the active cutting function of the cutting blade, creates a synergistic anti-entanglement effect. At the same time, the coating enhances the wear resistance of the drive shaft surface, reduces the damage to the drive shaft caused by straw friction, extends the service life of components, and further improves the stability and economy of equipment operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the transverse cross-sectional structure of the drive shaft of this utility model;

[0017] Figure 3 This is a schematic diagram of the longitudinal cross-sectional structure of the drive shaft of this utility model;

[0018] Figure 4 This is an exploded view of the drive platform and connecting block structure of this utility model.

[0019] In the diagram: 1. Frame; 2. Drive motor; 3. Connecting plate;

[0020] 4. Drive shaft; 41. Power motor;

[0021] 42. Drive stage; 421. Guide block; 422. Connecting block; 423. Guide groove;

[0022] 43. Lead screw; 44. Circular groove; 45. Receiving groove; 46. Cutting blade;

[0023] 5. Rotary tillage blades. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1 to 4 As shown, this utility model provides an anti-tangling straw returning rotary tillage device, including a frame 1, a drive motor 2 installed at one end of the frame 1, and connecting plates 3 rotatably connected to the inner walls of both sides of the frame 1. A drive shaft 4 is fixedly connected to one end of the two connecting plates 3, and a plurality of rotary tillage blades 5 are installed on the outer surface of the drive shaft 4.

[0026] The drive shaft 4 includes two circular grooves 44 formed on its inner surface. Drive platforms 42 are slidably connected to the inner surfaces of both grooves 44. Power motors 41 are mounted on the inner surfaces of both connecting plates 3. The output ends of the two power motors 41 pass through both ends of the two drive shafts 4 and are fixedly connected to lead screws 43. The two power motors 41 start simultaneously through synchronous control, ensuring that the two cutting blades 46 extend and retract synchronously for balanced operation. The inner surfaces of the two drive shafts 4 are threadedly connected to the two lead screws 43. Two connecting blocks 422 are slidably connected to the outer surfaces of the two drive platforms 42. Two receiving grooves 45 are formed on the outer surface of the drive shaft 4. Cutting blades 46 are provided on the inner surfaces of the two receiving grooves 45. The two connecting blocks 422 on the same horizontal side are fixedly connected to the cutting blade 46 on the same side. By setting up a linkage structure between the power motors 41, lead screws 43, drive platforms 42, connecting blocks 422, and cutting blades 46, the cutting blades 46 can be actively driven to extend and cut the entangled straw, solving the problem of manual cleaning of entangled material required in traditional devices, improving operational continuity, and reducing labor costs.

[0027] Specifically, the two circular grooves 44 are mirror-distributed, which ensures that the movement of the two drive platforms 42, connecting blocks 422 and cutting blades 46 on both sides remains symmetrical, ensuring that the drive shaft 4 is subjected to balanced force, avoiding component wear or operation deviation caused by unilateral imbalance, and improving the stability of the device operation.

[0028] like Figures 1 to 4As shown, the inner walls of the two circular grooves 44 are rotatably connected to one end of the two lead screws 43 respectively. The rotatable connection between the inner walls of the circular grooves 44 and one end of the lead screws 43 can provide limiting support for the end of the lead screws 43, preventing axial displacement or shaking of the lead screws 43 during rotation, ensuring the accuracy of the threaded transmission between the lead screws 43 and the drive table 42, and ensuring the stability of the extension and retraction of the cutting blade 46.

[0029] Furthermore, the drive platform 42 is frustum-shaped, and the circular groove 44 is connected to the two receiving grooves 45. The design of the drive platform 42 as frustum-shaped, together with the connection design of the circular groove 44 and the receiving grooves 45, enables the drive platform 42 to slide more smoothly and push the connecting block 422 towards the receiving groove 45, avoiding the movement of the connecting block 422 getting stuck, while ensuring that the cutting blade 46 can smoothly extend or retract from the receiving groove 45.

[0030] like Figures 1 to 4 As shown, two guide grooves 423 are provided on the outer surface of the drive table 42. One end of each of the two connecting blocks 422 is fixedly connected to a guide block 421 that is used in conjunction with the guide groove 423. The cooperation structure between the guide block 421 and the guide groove 423 can precisely limit the sliding trajectory of the connecting block 422, prevent the connecting block 422 from shifting or misaligning when it moves with the drive table 42, ensure that the cutting blade 46 always extends and retracts in the preset direction, improve the straw cutting effect, and reduce the frictional wear between the connecting block 422 and the drive table 42.

[0031] It is worth noting that the outer surface of the drive shaft 4 is coated with an anti-stick and wear-resistant coating. On the one hand, the anti-stick and wear-resistant coating on the outer surface of the drive shaft 4 can reduce the adhesion of straw to the surface of the drive shaft 4, reduce the probability of entanglement from the source, and form a double anti-entanglement effect with the cutting blade 46; on the other hand, it can enhance the wear resistance of the drive shaft 4, reduce the damage to the drive shaft 4 caused by straw friction, extend the service life of the drive shaft 4, and reduce equipment maintenance costs.

[0032] The power motor 41 and drive motor 2 are existing technologies and will not be described in detail. Additionally, this utility model also includes a power supply, controller, and switch, which are not the main technical points of this patent and will not be described in detail. The wiring diagram of the motor in this utility model is common knowledge in the field, and its working principle is already known technology. The appropriate model is selected based on actual use; therefore, the control method and wiring layout of the motor will not be explained in detail.

[0033] Working principle and process: During operation, the drive motor 2 starts and drives the drive shaft 4 and rotary tiller blades 5 to rotate through the connecting plate 3. The rotary tiller blades 5 tillage and return the soil and straw to the field. When straw gets tangled in the drive shaft 4 or the rotary tiller blades 5, the power motor 41 is started. The output end of the power motor 41 drives the lead screw 43 to rotate. The lead screw 43 is threaded into the drive platform 42, driving the drive platform 42 to slide along the circular groove 44. During the sliding of the drive platform 42, the connecting block 422 moves along the surface of the drive platform 42 towards the receiving groove 45 under the guidance of the guide block 421 and the guide groove 423, thereby pushing the cutting blade 46 to extend from the receiving groove 45 and cut the tangled straw. After the straw is cut, the power motor 41 rotates in the opposite direction, driving the lead screw 43 to rotate in the opposite direction, so that the drive platform 42 is reset, and the connecting block 422 drives the cutting blade 46 to retract into the receiving groove 45. At the same time, the anti-stick and wear-resistant coating on the outer surface of the drive shaft 4 reduces straw adhesion, further reducing the risk of tangling and ensuring the continuous and stable operation of the device.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rotary tillage device for returning straw to the field without tangling, comprising a frame (1), characterized in that: One end of the frame (1) is equipped with a drive motor (2), and both sides of the inner wall of the frame (1) are rotatably connected with connecting plates (3). One end of the two connecting plates (3) is fixedly connected to a drive shaft (4), and a number of rotary tillage blades (5) are installed on the outer surface of the drive shaft (4). The drive shaft (4) includes two circular grooves (44) formed on the inner surface of the drive shaft (4). The inner surfaces of the two circular grooves (44) are slidably connected to drive platforms (42). The inner surfaces of the two connecting plates (3) are each equipped with a power motor (41). The output ends of the two power motors (41) pass through both ends of the two drive shafts (4) and are fixedly connected to lead screws (43). The inner surfaces of the two drive shafts (4) are threadedly connected to the two lead screws (43). The outer surfaces of the two drive platforms (42) are slidably connected to two connecting blocks (422). The outer surface of the drive shaft (4) has two receiving grooves (45). The inner surfaces of the two receiving grooves (45) are provided with cutting blades (46). The two connecting blocks (422) on the same horizontal side are fixedly connected to the cutting blades (46) on the same side.

2. The anti-tangling straw returning rotary tillage device according to claim 1, characterized in that: The two circular grooves (44) are mirror images of each other.

3. The anti-tangling straw returning rotary tillage device according to claim 1, characterized in that: The inner walls of one side of the two circular grooves (44) are rotatably connected to one end of the two lead screws (43).

4. The anti-tangling straw returning rotary tillage device according to claim 1, characterized in that: The drive platform (42) is frustum-shaped, and the circular groove (44) is connected to two receiving grooves (45).

5. The anti-tangling straw returning rotary tillage device according to claim 4, characterized in that: Two guide grooves (423) are provided on the outer surface of the drive platform (42), and one end of each of the two connecting blocks (422) is fixedly connected to a guide block (421) that is used in conjunction with the guide grooves (423).

6. The anti-tangling straw returning rotary tillage device according to claim 1, characterized in that: The outer surface of the drive shaft (4) is coated with an anti-stick and wear-resistant coating.

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