Corn stubble digging shovel

Abstract

Each stubble digging shovel is correspondingly provided with a vibration resistance reduction system, each vibration resistance reduction system comprises a fixing support, a connecting frame, a supporting sliding shaft and a spring, the fixing support is provided with a vertical connecting arm and a horizontal connecting arm, the horizontal connecting arm is connected to the position, close to the middle, of the vertical connecting arm, and the vertical connecting arm is connected with the supporting sliding shaft. Wherein one end of the vertical connecting arm is connected with the shovel handle, and the other end is provided with a duct; the connecting frame is fixed to one side of the rack and rotationally connected with the horizontal connecting arm, and two vertical plates are arranged at the top of the connecting frame; one end of the supporting sliding shaft is sleeved with a fixed disc and connected between the two vertical plates, and the other end of the supporting sliding shaft penetrates through the hole channel and is provided with a baffle. The spring is arranged on the supporting sliding shaft in a sleeving mode, the two ends of the spring abut against the fixed disc and the vertical connecting arm respectively, in the excavating operation, the stubble digging shovel pierces into soil, reverse impact force from the soil is absorbed through the spring, the soil is continuously vibrated and loosened in the excavating process, and therefore friction resistance between the soil and the shovel head is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural stubble digging equipment, in particular to a corn stubble digging shovel. Background Art

[0002] With the development of modern agricultural mechanization, the automation and efficiency of corn planting and harvesting have received extensive attention and research. As the last step in corn planting and harvesting, the treatment of corn stubble is crucial for subsequent land tillage, soil nutrient recovery and land reuse. At present, the treatment of stubble mainly relies on mechanical equipment for excavation and removal. However, the existing corn stubble excavation machinery faces many technical bottlenecks, especially in complex soil environments such as hard, dry, layered or clay soils. Problems such as high resistance during excavation, rapid mechanical wear and low work efficiency are common. In addition, the stubble is easily damaged during excavation, affecting its reuse or soil improvement effect in some cases. How to reduce the resistance during excavation to improve excavation efficiency has become one of the core issues that need to be urgently solved in this field.

[0003] The corn stubble excavation equipment that is widely used at present usually adopts a simple mechanical structure, which is mainly composed of an excavation shovel, a support frame and connecting parts. Since the support frame, excavation shovel and connecting parts of the existing corn stubble excavation equipment are all rigid structures, in the working environment of relatively hard, dry, layered or clay soil and other complex soils, the excavation shovel can only be driven to move under the soil by applying a greater driving force, so as to turn up the stubble together with the soil. As a result, the excavation shovel is subjected to great resistance when moving forward, and can only move forward by applying a greater driving force to the excavation shovel to resist the resistance, which not only increases the load on the equipment, but also greatly reduces the overall working efficiency. Summary of the invention

[0004] The purpose of the invention is to provide a corn stubble digging shovel to solve the problem of reducing the friction resistance between the digging shovel and the soil during operation.

[0005] The technical solution of the present invention is: A corn stubble digging shovel, comprising a frame for connecting an external driving device and a plurality of stubble digging shovels connected to the frame, each stubble digging shovel having a shovel head and a shovel handle, the frame being a frame-shaped frame body, the digging shovel further comprising: a plurality of vibration drag reduction systems, each of the stubble digging shovels being correspondingly configured with a vibration drag reduction system, each vibration drag reduction system comprising: a fixed bracket having a vertical connecting arm and a horizontal connecting arm, the horizontal connecting arm being connected to a position near the middle of the vertical connecting arm, wherein one end of the vertical connecting arm is used to connect the shovel handle, and the other end of the vertical connecting arm is provided with a hole A connecting frame is fixed on one side of the frame and is rotatably connected to one end of the horizontal connecting arm away from the vertical connecting arm, and two vertical plates are provided on the top of the connecting frame; a supporting sliding shaft, one end of which is fixedly connected between the two vertical plates by a nut and screw assembly, and the other end passes through the channel, and a baffle is provided on the other end to prevent the other end of the supporting sliding shaft from escaping from the channel, and a fixed disc is sleeved on one end of the supporting sliding shaft close to the vertical plate; a spring is sleeved on the supporting sliding shaft, and one end abuts against the fixed disc, and the other end abuts against the side of the vertical connecting arm.

[0006] Furthermore, the shovel head is a triangular shovel head, one edge of which is fixed to the shovel handle by bolts, and the shovel surface of the shovel head is provided with a plurality of shovel edges with triangular ribbed structures along the digging direction of the equipment. This ribbed design can provide better cutting effect during excavation, and is especially suitable for hard or layered soils. The ribbed structure can also prevent soil from adhering to the surface of the shovel head, thereby further reducing resistance during operation.

[0007] Furthermore, the front end of each shovel edge is heat-treated to increase wear resistance and smoothness, which can effectively break the soil and provide a stable grip during the separation of stubble from soil.

[0008] Furthermore, the angle between the shovel handle of the stubble shovel and the ground is set to 30° to 45°, so as to ensure that the shovel head can be smoothly inserted into the soil during the excavation process and reduce energy loss during the operation.

[0009] Furthermore, the connecting frame includes: two connecting plates, which are arranged in upper and lower positions and connected by U-shaped bolts and fixed to the frame by U-shaped bolts. A rotating rod is fixed to the bottom of the lower connecting plate, and one end of the rotating rod is connected to the horizontal connecting arm through a rotating shaft.

[0010] Furthermore, the frame is connected to the external driving device through a three-point suspension mechanism, and the three-point suspension mechanism includes: three groups of connecting plates and a support plate. Bolt holes are provided on the support plate and the connecting plate, and the support plate is arranged at the top of the frame, wherein two groups of connecting plates are arranged on one side where the frame is connected to the connecting frame, and are symmetrically arranged on both sides of the support plate, and another group of connecting plates is arranged on the support plate.

[0011] Furthermore, the plurality of stubble shovels are arranged at equal distances from each other.

[0012] Furthermore, the surface of the stubble shovel head is treated with a wear-resistant coating to extend the service life of the equipment and reduce wear.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can be applied to operations in various complex soil environments and ensure the uniformity and continuity of excavation operations, especially in hard, heavy soil or drought conditions. When the excavation shovel is connected to an external driving device and the external device drives the excavation shovel forward, the hard and dry soil has a resistance effect on the stubble shovel's advancement in the soil. As the excavation shovel advances in the soil, the upper end of the vertical connecting arm of the fixed bracket connected to the stubble shovel intermittently squeezes the spring, so that the spring is compressed and stretched along the supporting sliding shaft, forming a dynamic force of the vibration drag reduction system, so that the shovel head of the stubble shovel connected to the bottom end of the vertical connecting arm follows the vibration drag reduction system. The shovel head causes the soil to be continuously vibrated and loosened during the excavation process, thereby reducing the friction resistance between the soil and the shovel head. The present invention combines the mechanical vibration generated by soil resistance during excavation with the movement of the excavation shovel through the vibration drag reduction system, effectively reducing soil resistance and alleviating the load of the equipment, which not only improves the operation efficiency, but also greatly reduces energy consumption for long-term operations in large areas of farmland.

[0014] 2. The present invention arranges multiple triangular ribbed structures on the shovel surface of the shovel head to prevent soil from adhering to the shovel surface of the shovel head during excavation, thereby reducing the resistance added to the excavation process due to soil adhesion, avoiding friction and impact between the soil and the equipment, and reducing the wear rate of the shovel head, thereby extending the service life of the equipment and reducing frequent maintenance needs and operating costs.

[0015] 3. The triangular shovel head design of the present invention can more effectively extract the stubble, reduce the damage of the stubble, and improve its recycling rate. It not only improves the sustainable utilization of the land, but also helps to protect the organic matter in the soil and promote the long-term healthy development of the land. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the structure of the excavating shovel of the present invention.

[0018] Figure 3 It is a schematic diagram of the structure of the vibration drag reduction system of the present invention.

[0019] 1. Three-point suspension mechanism, 2. Support plate, 3. Vibration drag reduction system, 4. Frame, 5. Stubble shovel, 6. Shovel edge, 7. Shovel head, 8. Bolt, 9. Shovel handle, 10. Rotating rod, 11. Connecting plate, 12. U-shaped bolt, 13. Nut and screw assembly, 14. Fixed disc, 15. Support sliding shaft, 16. Spring, 17. Fixed bracket, 18. Baffle. DETAILED DESCRIPTION

[0020] Combine the following Figures 1 to 3 , the specific embodiments of the present invention are described in detail. In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0021] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0022] Example like Figure 1 As shown, a corn stubble digging shovel comprises a frame 4 for connecting an external driving device and a plurality of stubble digging shovels 5 connected to the frame 4. The plurality of stubble digging shovels 5 are arranged equidistantly, and each stubble digging shovel 5 has a shovel head 7 and a shovel handle 9. The frame 4 is a frame body, such as Figure 3 As shown, the excavating shovel also includes: a plurality of vibration reduction systems 3, such as Figure 1 and Figure 3As shown, each stubble shovel 5 is correspondingly configured with a vibration drag reduction system 3, and each vibration drag reduction system 3 includes: a fixed bracket 17, a connecting frame, a supporting sliding shaft 15 and a spring 16. The fixed bracket 17 has a vertical connecting arm and a horizontal connecting arm. The horizontal connecting arm is connected to the vertical connecting arm near the middle position, wherein one end of the vertical connecting arm is used to connect the shovel handle 9, and the other end of the vertical connecting arm is provided with a channel; the connecting frame is fixed to one side of the frame 4, and is rotatably connected to one end of the horizontal connecting arm away from the vertical connecting arm, and two vertical plates are provided on the top of the connecting frame; one end of the supporting sliding shaft 15 is fixedly connected between the two vertical plates through a nut screw assembly 13, and the other end passes through the channel, And it can move in the channel, and a baffle 18 is provided on the other end, which can prevent the other end of the support sliding shaft 15 from escaping from the channel. The end of the support sliding shaft 15 close to the vertical plate is sleeved with a fixed disc 14; the spring 16 is sleeved on the support sliding shaft 15, and one end is abutted against the fixed disc 14, and the other end is abutted against the side of the vertical connecting arm. During the excavation operation, the stubble shovel 5 penetrates into the soil, and the external driving equipment, such as a tractor, pulls the excavation shovel forward in the soil. During the forward process, the reverse impact force from the soil is absorbed by the spring 16, ensuring the stability of the excavation shovel forward, and the hardness of the spring 16 can be adjusted according to different soil conditions. In harder soil, the hardness of the spring 16 can be increased to offset the greater impact force; in softer soil, a softer spring 16 can be used to ensure the flexibility of the operation.

[0023] like Figure 2 As shown, the shovel head 7 is a triangular shovel head, one side of which is fixed to the shovel handle 9 by a bolt 8. A plurality of shovel edges 6 with a triangular ribbed structure are provided on the shovel surface of the shovel head 7 along the digging direction of the equipment. This ribbed design can provide a better cutting effect during excavation, and is particularly suitable for hard or layered soils. The ribbed structure can also prevent soil from adhering to the surface of the shovel head 7, thereby further reducing resistance during operation.

[0024] In some embodiments, the front end of each shovel edge 6 is heat-treated to increase wear resistance and smoothness, so as to effectively break the soil and provide a stable grip during the separation of stubble from soil.

[0025] In some embodiments, the angle between the shovel handle 9 of the stubble shovel 5 and the ground is set to 30° to 45°, so as to ensure that the shovel head 7 can be smoothly inserted into the soil during the excavation process, while reducing energy loss during the operation.

[0026] like Figure 3 As shown, the connecting frame includes: two connecting plates 11, which are arranged in the upper and lower positions and are connected by U-shaped bolts 12 and fixed to the frame 4 by the U-shaped bolts 12. A rotating rod 10 is fixed to the bottom of the lower connecting plate 11, and one end of the rotating rod 10 is connected to the horizontal connecting arm through a rotating shaft.

[0027] like Figure 1 As shown, the frame 4 is connected to the external drive device through a three-point suspension mechanism 1, and the three-point suspension mechanism 1 includes: three groups of connecting plates and a support plate 2. Bolt holes are provided on the support plate 2 and the connecting plate. The support plate 2 is arranged at the top of the frame 4, wherein two groups of connecting plates are arranged on one side where the frame 4 is connected to the connecting frame, and are symmetrically arranged on both sides of the support plate 2, and the other group of connecting plates is arranged on the support plate 2. The three-point suspension mechanism 1 on the frame 4 is connected to the external drive device to improve the connection stability between the excavating shovel and the external device, thereby improving the forward stability of the excavating shovel during operation.

[0028] In some embodiments, the surface of the shovel head 7 of the stubble shovel 5 is treated with a wear-resistant coating to extend the service life of the equipment and reduce wear.

[0029] During the operation of the excavating shovel of this embodiment, the three-point suspension mechanism 1 is connected to the external driving device to drive the excavating shovel forward, and the shovel head 7 is subjected to the dynamic force from the vibration drag reduction system 3 in the soil, so that the soil is continuously vibrated and loosened during the excavation process, thereby reducing the friction resistance between the soil and the shovel head 7. At the same time, through the design of the triangular shovel head 7 and the triangular ribbed structure on the shovel surface, the soil can be effectively cut and the stubble can be grabbed during the stubble excavation process, which is particularly suitable for hard or layered soils, and the triangular ribbed structure can also prevent the soil from adhering to the surface of the shovel head 7, thereby further reducing the resistance during the operation, achieving efficient corn stubble excavation operations, significantly improving the operating efficiency and reducing the energy consumption and wear of the equipment.

[0030] The above disclosures are only several preferred specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A corn stubble digging shovel, comprising a frame (4) for connecting an external driving device and a plurality of stubble digging shovels (5) connected to the frame (4), each stubble digging shovel (5) having a shovel head (7) and a shovel handle (9), characterized in that: The frame (4) is a frame-shaped frame, and the excavating shovel further comprises: a plurality of vibration drag reduction systems (3), each of the stubble shovels (5) being configured with a corresponding vibration drag reduction system (3), and each vibration drag reduction system (3) comprising: A fixed bracket (17) having a vertical connecting arm and a horizontal connecting arm, wherein the horizontal connecting arm is connected to the vertical connecting arm near the middle, wherein one end of the vertical connecting arm is used to connect to the shovel handle (9), and the other end of the vertical connecting arm is provided with a hole; A connecting frame is fixed to one side of the frame (4) and is rotatably connected to an end of the horizontal connecting arm away from the vertical connecting arm, and two vertical plates are provided on the top of the connecting frame; A support sliding shaft (15), one end of which is fixedly connected between the two vertical plates, and the other end of which passes through the hole, and a baffle (18) is provided on the other end to prevent the other end of the support sliding shaft (15) from escaping from the hole, and a fixed disc (14) is sleeved on one end of the support sliding shaft (15) close to the vertical plate; The spring (16) is sleeved on the supporting sliding shaft (15), and one end of the spring abuts against the fixed disc (14), and the other end of the spring abuts against the side surface of the vertical connecting arm.

2. A corn stubble digging shovel according to claim 1, characterized in that: The shovel head (7) is a triangular shovel head, one side of which is fixed on the shovel handle (9), and a plurality of shovel edges (6) with triangular ribbed structures are provided on the shovel surface of the shovel head (7) along the shoveling direction of the equipment.

3. A corn stubble digging shovel according to claim 2, characterized in that: The front end of each shovel edge (6) is heat-treated to improve the wear resistance and smoothness of the shovel edge (6).

4. The corn stubble digging shovel according to claim 1, characterized in that: The angle between the stubble shovel handle (9) and the ground is set to 30° to 45°.

5. The corn stubble digging shovel according to claim 1, characterized in that: The connection frame comprises: two connection plates (11), the two connection plates (11) are arranged in upper and lower positions and connected by U-shaped bolts (12), and fixed to the frame (4) by the U-shaped bolts (12); a rotating rod (10) is fixed to the bottom of the connection plate (11) located in the lower position, and one end of the rotating rod (10) is connected to the horizontal connection arm via a rotating shaft.

6. The corn stubble digging shovel according to claim 1, characterized in that: The frame (4) is connected to an external drive device via a three-point suspension mechanism (1), wherein the three-point suspension mechanism (1) comprises: three groups of connecting plates and a support plate (2), wherein bolt holes are provided on the support plate (2) and the connecting plate, and the support plate (2) is arranged at the top of the frame (4), wherein two groups of connecting plates are arranged on a side where the frame (4) is connected to a connecting frame and are symmetrically arranged on both sides of the support plate (2), and the other group of connecting plates is arranged on the support plate (2).

7. The corn stubble digging shovel according to claim 1, characterized in that: The plurality of stubble shovels (5) are arranged at equal distances from each other.

8. The corn stubble digging shovel according to claim 1, characterized in that: The surface of the shovel head (7) of the stubble shovel (5) is treated with a wear-resistant coating.

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