Anti-sticking digging shovel body structure

By setting up trapezoidal shovel body, pyramid soil-breaking claws, grid holes and micro-weaving pits on the sweet potato excavation shovel body, combined with gradient coating, the problems of large weight and soil adhesion in the existing sweet potato excavation mechanism are solved, and efficient soil-breaking and anti-sticking effects are achieved, adapting to a variety of soil environments.

CN223067529UActive Publication Date: 2025-07-08YANGZHOU UNIV +2
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Patent Information

Application Number
CN202422327797.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-24
Publication Date
2025-07-08
Estimated Expiration
2034-09-24

AI Technical Summary

Technical Problem

The existing sweet potato excavation mechanism has a large body weight, poor soil breaking ability, and the soil is prone to stick to the surface of the shovel, affecting the efficiency and continuity of excavation.

Method used

A structure of anti-sticking excavation shovel body is designed, using trapezoidal excavation shovel body, pyramid-shaped earth-breaking claws, grid holes, laser-etched microweaving pits and gradient coatings. Combined with removable earth-breaking claws and bolt connections, it enhances the soil-breaking capacity and reduces soil adhesion.

Benefits of technology

It improves excavation efficiency, reduces soil adhesion, reduces maintenance and replacement costs, improves operating efficiency and anti-stickness, and adapts to different soil environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

An anti-sticking digging shovel body structure belongs to the technical field of agricultural machinery and consists of a digging shovel body, a connecting piece and a ground breaking claw, the axial direction of the connecting piece is fixedly connected with the digging shovel body, and the connecting piece is used for connecting the digging shovel body and the excavator movable arm. The ground breaking claws are fixedly connected with the surface of the digging shovel body. The soil breaking claw is arranged to be of a pyramid structure, the soil breaking resistance can be reduced, the soil breaking efficiency is improved, the soil breaking claw is of a replaceable structure, independent maintenance and replacement of the soil breaking claw can be achieved, and the maintenance and replacement cost is saved. The micro-woven pits formed by laser beam etching are formed in the surface of the digging shovel body, the structure can effectively prevent soil from adhering to the surface of the digging shovel body, and the digging efficiency is effectively improved while the anti-adhesion performance is improved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural machinery, and relates to a crop digging shovel body structure, specifically to a digging shovel body structure that can effectively prevent soil adhesion. Background Technique

[0002] The harvesting of sweet potatoes includes processes such as loosening the soil, digging, collecting, and sorting. Among them, the digging operation is an important part of the process. The power consumption during the digging process and the effect of cutting the root hairs directly affect the final quality of sweet potato harvesting. And the anti-sticking property and soil-breaking property are important factors affecting the power consumption during sweet potato digging.

[0003] At present, most sweet potato digging mechanisms are integral structures, with a large overall weight of the machine body, poor soil-breaking performance, and soil is easy to adhere to the surface of the shovel body during the digging process, affecting the efficiency and continuity of its digging. Therefore, it is particularly necessary to design a digging shovel with good digging performance and effective soil adhesion prevention. Summary of the Utility Model

[0004] The purpose of the utility model is to address the deficiencies in the existing sweet potato digging mechanisms during the digging operation, and propose an anti-sticking digging shovel body structure to optimize the overall weight and structure of the shovel body, effectively remove the soil adhering to the surface of the digging shovel, and improve the working efficiency during the digging operation.

[0005] The anti-sticking digging shovel body structure provided by this application adopts the following technical solutions:

[0006] An anti-sticking digging shovel body structure includes a digging boom of the excavator; characterized in that the digging shovel body structure includes:

[0007] A digging shovel body;

[0008] A connecting piece, axially connected and fixed to the digging shovel body, for connecting the digging shovel body and the digging boom of the excavator;

[0009] Soil-breaking claws, connected and fixed to the surface of the digging shovel body.

[0010] By adopting the above technical solutions, soil-breaking claws are provided on the digging shovel body to further enhance the soil-breaking ability of the digging shovel and improve the digging efficiency.

[0011] Further, the cross-section of the digging shovel body is trapezoidal, the thickness from the rear end to the front end of the digging shovel body decreases, and the front end is in a sharpened structure, and a shovel tip is provided at the center of the sharpened part.

[0012] By adopting the above technical solutions, the gradually thinning thickness of the digging shovel body, the sharpened front end and the shovel tip are all beneficial to the soil-breaking of the digging shovel and improve the soil-breaking and digging efficiency.

[0013] Furthermore, the whole soil-breaking claw is in a pyramid structure, gradually widening from the claw tip to the claw bottom and gradually narrowing from the claw root to the claw tip.

[0014] By adopting the above technical solution, the soil-breaking claw is set in a pyramid structure, which can reduce the resistance of soil breaking and improve the soil-breaking efficiency.

[0015] Furthermore, the soil-breaking claw is a detachable and replaceable structure, and is fixedly connected to the surface of the excavation shovel body through bolts.

[0016] By adopting the above technical solution, the soil-breaking claw is a replaceable structure, which can realize the separate maintenance and replacement of the soil-breaking claw, saving the maintenance and replacement costs.

[0017] Furthermore, the number of the soil-breaking claws is not less than 3. The middle soil-breaking claw is arranged in the middle of the surface of the excavation shovel body, and the remaining soil-breaking claws are symmetrically arranged on both sides of the middle soil-breaking claw and form an angle of not less than 15° with the middle soil-breaking claw.

[0018] By adopting the above technical solution, the soil-breaking claws are evenly distributed on the surface of the excavation shovel body, which can make the soil-breaking claws bear uniform force during soil breaking, improve the overall strength and durability of the soil-breaking claws, and extend the service life of the soil-breaking claws.

[0019] Furthermore, a number of grid holes are provided on the surface of the excavation shovel body. The grid holes penetrate through the whole excavation shovel body, and the grid holes are all circular holes with equal diameters.

[0020] By adopting the above technical solution, setting the grid holes can remove the weight of the overall structure of the excavation shovel, save the manufacturing materials of the excavation shovel body, and can effectively shake off the soil from the grid holes, realizing rapid soil breaking and effectively improving the operation efficiency.

[0021] Furthermore, a number of micro-textured pits formed by laser beam etching are provided on the surface of the excavation shovel body. Each micro-textured pit is in a hemispherical shape, and the diameter of the hemisphere is 50-100 μm.

[0022] By adopting the above technical solution, the diameter of the micro-textured pits is set to be smaller than the average diameter of the soil particles, avoiding the adhesion of the soil on the surface of the excavation shovel body, improving the anti-adhesion property and effectively improving the excavation efficiency.

[0023] Furthermore, a gradient coating is provided on the surface of the excavation shovel body, which is a polyethylene coating and an epoxy resin primer coating in sequence from outside to inside.

[0024] By adopting the above technical solution, on the one hand, the gradient coating can improve the strength requirement of the soil-breaking claw, and on the other hand, it can improve the anti-adhesion and anti-corrosion properties, effectively adapting to the soil operations in different regions.

[0025] In summary, the utility model includes at least one of the following beneficial technical effects:

[0026] (1) In the present utility model, the soil-breaking claw is arranged in a pyramid structure, which can reduce the resistance of soil-breaking and improve the soil-breaking efficiency. The soil-breaking claw is a replaceable structure, which can realize the separate maintenance and replacement of the soil-breaking claw, saving the maintenance and replacement costs.

[0027] (2) In the present utility model, grid holes are arranged on the surface of the excavation shovel body. This structure can effectively reduce the weight of the overall structure of the excavation shovel, save the manufacturing materials of the excavation shovel body, and can effectively shake off the soil from the grid holes, realizing rapid soil-breaking and effectively improving the operation efficiency.

[0028] (3) In the present utility model, micro-textured pits formed by laser beam etching are provided on the surface of the excavation shovel body. This structure can effectively prevent the soil from adhering to the surface of the excavation shovel body, improving the anti-adhesion property and effectively improving the excavation efficiency at the same time.

[0029] (4) In the present utility model, the gradient coating provided on the surface of the excavation shovel body can, on the one hand, improve the strength requirement of the soil-breaking claw, and on the other hand, improve the anti-adhesion and anti-corrosion properties, enabling the excavation shovel to have anti-adhesion property while having high production efficiency and working versatility. Description of the Drawings

[0030] Figure 1 is a schematic diagram of the overall structure of the excavation shovel of the present utility model.

[0031] Figure 2 is a schematic diagram of the bottom surface structure of the excavation shovel of the present utility model.

[0032] Figure 3 is a schematic diagram of the surface structure of the excavation shovel body of the present utility model.

[0033] Figure 4 is Figure 3 the full-sectional structure schematic diagram in the A-A direction in

[0034] Figure 5 is a schematic diagram of the soil-breaking claw structure in the present utility model.

[0035] In the figure: excavation shovel body 1, connecting piece 2, soil-breaking claw 3, micro-textured pit 4, grid hole 5, shovel tip 6, bolt 7. Detailed Embodiments

[0036] The present utility model will be further clarified below in conjunction with the drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the utility model patent and not to limit the scope of the utility model patent. After reading the utility model patent, various equivalent modifications made by those skilled in the art to the utility model patent all fall within the scope defined by the appended claims of this application.

[0037] Embodiment 1

[0038] As Figure 1 shown, an anti-sticking digging shovel body structure is composed of a digging shovel body 1, a connecting piece 2, and a soil-breaking claw 3; the axial direction of the connecting piece 2 is fixedly connected to the digging shovel body 1 and is used for connecting the digging shovel body 1 and the boom of the excavator; the soil-breaking claw 3 is fixedly connected to the surface of the digging shovel body 1. By setting the soil-breaking claw 3 on the digging shovel body, the soil-breaking ability of the digging shovel is further enhanced. In order to reduce the resistance of soil-breaking and improve the soil-breaking efficiency, in this embodiment, the soil-breaking claw 3 is integrally in a pyramid structure. Specifically, as Figure 1 , Figure 3 , Figure 5 shown, the width of the soil-breaking claw 3 gradually increases from the top to the bottom, and the width of the soil-breaking claw 3 gradually narrows from the root to the tip of the claw. When digging, the tip of the soil-breaking claw 3 is beneficial to enter the soil, improving the soil-breaking efficiency.

[0039] In order to realize the separate maintenance and replacement of the soil-breaking claw 3 and save the maintenance and replacement costs, in this embodiment, a replaceable and detachable structure is formed between the soil-breaking claw 3 and the digging shovel body 1. Specifically, as Figure 5 shown, the soil-breaking claw 3 is fixedly connected to the surface of the digging shovel body 1 through a bolt 7.

[0040] In order to make the soil-breaking claw receive uniform force during soil-breaking, improve the overall strength and durability of the soil-breaking claw, and extend the service life of the soil-breaking claw, in this embodiment, the soil-breaking claws are evenly arranged on the surface of the digging shovel body. Specifically, as Figure 1 , Figure 3 shown, the number of soil-breaking claws 3 is 5, namely: the middle soil-breaking claw, the two-side soil-breaking claws, and the outer soil-breaking claws. The middle soil-breaking claw is centrally arranged on the surface of the digging shovel body, and its installation direction is consistent with the axial direction of the connecting piece. The two-side soil-breaking claws form a 15° angle with the middle soil-breaking claw, and the outer soil-breaking claws form a 25° angle with the middle soil-breaking claw.

[0041] Embodiment 2

[0042] In order to be beneficial to the soil-breaking of the digging shovel and improve the soil-breaking and digging efficiency, in this embodiment, the structure of the digging shovel body is optimized and improved. Specifically, as Figure 1 , Figure 2 shown, the cross-section of the digging shovel body 1 is trapezoidal, the thickness of the digging shovel body 1 from the rear end to the front end decreases, and the front end is in a sharpened structure. A shovel tip 6 is formed at the center of the sharpened part. When breaking soil, the shovel tip 6 and the sharpened structure first contact the soil, playing a guiding role, enabling the entire digging shovel body to smoothly enter the soil and forming a fast and effective soil-breaking operation.

[0043] In order to prevent soil from adhering to the surface of the digging shovel body and improve the anti-sticking property while effectively improving the digging efficiency, in this embodiment, a micro-textured concave pit structure is set on the surface of the digging shovel body. Specifically, as Figure 1 , Figure 4As shown, the micro-textured pits 4 are formed by laser beam etching. Each pit is hemispherical in shape, with a hemisphere diameter of 50 - 100 μm. By setting the diameter of the micro-textured pits 4 to be smaller than the average diameter of soil particles, adhesion between the soil and the excavation shovel body can be effectively prevented.

[0044] Embodiment 3

[0045] To save the manufacturing materials of the excavation shovel body, grid holes are provided on the excavation shovel body in this embodiment. Specifically, as Figures 1-3 shown, the grid holes 5 penetrate through the entire excavation shovel body 1. The grid holes 5 are all circular holes with equal diameters, and the grid holes are evenly arranged on the surface of the excavation shovel body 1 between the soil-breaking claws 3. By setting the grid holes, about 30% of the structural weight can be effectively removed, saving the manufacturing cost. At the same time, the grid holes can also effectively shake off the soil from the grid holes, enabling rapid soil breaking and effectively improving the operation efficiency.

[0046] To improve the anti-adhesion and anti-corrosion properties and effectively adapt to soil operations in different regions, this embodiment is achieved by setting a gradient coating on the excavation shovel body 1. Specifically, the gradient coating is composed of a polyethylene coating and an epoxy resin primer coating. The polyethylene coating is coated on the outside of the epoxy resin primer coating. In southern regions where the soil has high viscosity, a 60-μm epoxy resin primer coating + a 100-μm polyethylene coating are used to ensure that the soil does not adhere to the surface; in northern regions where the soil is relatively loose, a 20-μm epoxy resin primer coating + a 60-μm polyethylene coating can meet the anti-adhesion use requirements.

Claims

1. An anti-sticking excavation shovel body structure, including an excavator boom; characterized in that, The structure of the excavation shovel body includes: An excavation shovel body (1); A connecting piece (2), whose axis is fixedly connected to the excavation shovel body (1) and is used for connecting the excavation shovel body (1) and the boom of the excavator; A soil-breaking claw (3), which is fixedly connected to the surface of the excavation shovel body (1).

2. The anti-sticking type excavating shovel body structure according to claim 1, characterized in that: The cross-section of the excavation shovel body (1) is trapezoidal, the thickness from the rear end to the front end of the excavation shovel body (1) decreases, and the front end is in a sharpened structure with a shovel tip (6) provided at the center of the sharpened part.

3. A non-stick type excavating shovel body structure according to claim 1, characterized in that: The soil-breaking claw (3) is integrally in a pyramid structure, with the claw top gradually widening to the claw bottom and the claw root gradually narrowing to the claw tip.

4. The anti-sticking type digging shovel body structure according to claim 3, characterized in that: The soil-breaking claw (3) is a detachable and replaceable structure and is fixedly connected to the surface of the excavation shovel body (1) by bolts (7).

5. The anti-sticking type excavating shovel body structure according to claim 4, characterized in that: The number of the soil-breaking claws (3) is not less than 3. The middle soil-breaking claw is arranged in the middle of the surface of the excavation shovel body, and the other soil-breaking claws are symmetrically arranged on both sides of the middle soil-breaking claw and form an angle of not less than 15° with the middle soil-breaking claw.

6. The anti-sticking excavation shovel body structure according to claim 4, characterized in that: A number of grid holes (5) are provided on the surface of the excavation shovel body (1), and the grid holes (5) penetrate through the entire excavation shovel body (1), and the grid holes (5) are all circular holes with equal diameters.

7. The anti-sticking excavation shovel body structure according to claim 5, characterized in that: A number of micro-textured pits (4) formed by laser beam etching are provided on the surface of the excavation shovel body (1), and the shape of each micro-textured pit is hemispherical, and the diameter of the hemisphere is 50 - 100 μm.

8. The anti-sticking excavation shovel body structure according to claim 6, characterized in that: A gradient coating is provided on the surface of the excavation shovel body (1), which is a polyethylene coating and an epoxy resin primer coating from the outside to the inside in sequence.