Anti-rust movable blade of harvester

Abstract

The utility model relates to the field of blades, and discloses an anti-rust movable blade of a harvester, which comprises a harvester blade body structure, a cutting edge is arranged on the front side of the harvester blade body structure, the harvester blade body structure comprises a base material layer, a protective electroplated layer, an anti-rust bottom layer and a hardened layer, the base material layer is arranged in the middle of the harvester blade body structure, and the protective electroplated layer is arranged on the base material layer. According to the movable cutter body structure of the harvesting machine, the chromium-nickel plating layer on the outermost layer provides additional anti-corrosion protection, so that the cutter blade can keep good anti-rust performance in a humid environment, and under the condition that the electroplated layer is abraded or scratched due to long-term use, the anti-rust bottom layer is tightly attached to the hardened layer, so that the anti-rust performance of the cutter blade is improved. The anti-rust bottom layer can prevent water and corrosive substances from further permeating into the base material layer through a worn area, so that the double-layer anti-rust mode is adopted to ensure that the inner anti-rust bottom layer can still play a role even if the outer protective electroplated layer is damaged, and the overall service life of the movable blade of the harvesting machine is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of blades, and more particularly to a rust-resistant moving blade for harvesters. Background Technology

[0002] Harvester blades are an important component of agricultural machinery used for harvesting crops. These blades are typically mounted on the harvester's cutting platform and are used to cut crops.

[0003] According to Chinese Patent Publication No. CN206835663U, a biomimetic blade for a disc cutter in a corn harvester is disclosed, comprising a blade body. The blade body has a U-shaped structure composed of a left branch and a right branch. A row of biomimetic serrations is distributed on both the left and right branch blades. The biomimetic serrations include main teeth and auxiliary teeth. The contours of both the main teeth and auxiliary teeth are incomplete parabolic curves. The incomplete portions of the main tooth contour and the auxiliary tooth contour are connected by a smooth arc transition. The vertex height of the main tooth contour is higher than the vertex height of the auxiliary tooth contour, and the top surface width of the main tooth is smaller than the top surface width of the auxiliary tooth. The primary and secondary teeth are arranged alternately on the cutting edge, and the contours of the primary and secondary teeth located on two different biomimetic saw teeth are connected by a smooth arc transition. This invention is rationally designed, easy to process, and convenient to assemble and disassemble. It can effectively reduce cutting resistance, lower energy consumption, extend the service life of the blade, and improve the efficiency of corn harvesting. However, this blade still has shortcomings. In humid or highly corrosive agricultural operating environments, its surface protective layer is easily corroded. Existing harvester blades often only use a single-layer protective electroplating layer, such as a single chromium or nickel plating layer. This single-layer protection is prone to failure due to wear or scratches during long-term use. Once the protective layer is damaged, the substrate layer will be directly exposed to a humid and corrosive environment, accelerating the corrosion process. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a rust-resistant moving blade for harvesters, which solves the problem of easy corrosion leading to rust.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rust-resistant moving blade for a harvester, comprising a harvester blade body structure, wherein a blade is provided on the front side of the harvester blade body structure, the harvester blade body structure comprising a substrate layer, a protective electroplating layer, a rust-proof underlayer, and a hardening layer, wherein the substrate layer is located in the middle of the harvester blade body structure, and hardening layers are provided on both the inner and outer sides of the substrate layer, and rust-proof underlayers are provided on the outer sides of both the inner and outer hardening layers, and a protective electroplating layer is provided on the outer sides of both rust-proof underlayers, wherein the protective electroplating layer is a chromium-nickel plating layer, and the rust-proof underlayer is made of epoxy resin.

[0006] Preferably, the upper end of the harvester's blade structure is fixedly connected to both the inner and outer sides with reinforcing plates, and two blade mounting pads are fixedly connected to the outer side of the outer reinforcing plate.

[0007] Preferably, both blade mounting pads have mounting screw holes inside.

[0008] Preferably, the upper middle part of the harvester's blade structure has a weight-reducing groove.

[0009] Preferably, two reinforcing ribs are provided through the middle of the upper end of the harvesting motor blade structure, and both reinforcing ribs are fixedly connected to the harvesting motor blade structure.

[0010] Preferably, the substrate layer is made of chromium-silicon alloy steel.

[0011] Preferably, the hardened layer is made of titanium nitride.

[0012] Beneficial effects

[0013] This invention provides a rust-resistant moving blade for a harvester. Compared with the prior art, it has the following advantages:

[0014] In this invention, the outermost chromium-nickel plating layer of the harvester blade provides additional corrosion protection through the designed harvester blade structure, enabling the blade to maintain good rust resistance even in humid environments. When the protective electroplating layer is worn or scratched due to long-term use, the rust-proof underlayer, which is tightly attached to the hardened layer, can prevent moisture and corrosive substances from further penetrating into the substrate layer through the worn area. This double-layer rust prevention method ensures that even when the outer protective electroplating layer is damaged, the inner rust-proof underlayer can still function, thereby extending the overall service life of the harvester blade. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the rear side of a rust-resistant moving blade for a harvester, as proposed in this utility model.

[0016] Figure 2 This is a three-dimensional structural diagram of the front side of a rust-resistant moving blade for a harvester, as proposed in this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the harvester blade body structure in the anti-rust moving blade of a harvester proposed in this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of the harvester blade body structure in the anti-rust moving blade of a harvester proposed in this utility model;

[0019] Figure 5 This utility model proposes a rust-resistant moving blade for a harvester. Figure 4 A magnified view of A in the middle.

[0020] Legend:

[0021] 1. Harvesting motor blade structure; 101. Base material layer; 102. Protective electroplating layer; 103. Rust-proof base layer; 104. Hardening layer; 2. Blade; 3. Weight reduction groove; 4. Reinforcing rib; 5. Blade mounting gasket; 6. Mounting screw hole; 7. Reinforcing plate. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-5 This utility model provides two technical solutions, specifically including the following embodiments:

[0024] Example 1:

[0025] A rust-resistant moving blade for a harvester includes a harvester blade structure. A blade 2 is provided on the front side of the harvester blade structure 1. The harvester blade structure 1 includes a substrate layer 101, a protective electroplated layer 102, a rust-proof underlayer 103, and a hardening layer 104. The substrate layer 101 is located in the middle of the harvester blade structure. Hardening layers 104 are provided on both the inner and outer sides of the substrate layer 101. The hardening layers 104 are coated on the inner and outer sides of the substrate layer 101 using PVD technology. A rust-proof underlayer 103 is provided on the outer side of both the inner and outer sides of the hardening layers 104. A protective electroplated layer 102 is provided on the outer side of both rust-proof underlayers 103. The protective electroplated layer 102 is a chromium-nickel plating layer. The rust-proof underlayer 103 is made of epoxy resin. The substrate layer 101 is made of chromium-silicon alloy steel, and the hardening layer 104 is made of titanium nitride.

[0026] During operation, the outermost chromium-nickel plating provides additional corrosion protection, enabling the blade to maintain good rust resistance even in humid environments. In the event of wear or scratches on the protective electroplating layer 102 due to long-term use, the rust-proof underlayer 103, which is in close contact with the hardened layer 104, can prevent moisture and corrosive substances from further penetrating into the substrate layer 101 through the worn area. This double-layer rust protection ensures that even if the outer protective electroplating layer 102 is damaged, the inner rust-proof underlayer 103 can still function, thereby extending the overall service life of the harvesting motor blade.

[0027] Example 2:

[0028] Based on Embodiment 1, reinforcing plates 7 are fixedly connected to both the inner and outer sides of the upper end of the harvester's blade structure 1. The reinforcing plates 7 are used to enhance the overall strength and rigidity of the blade structure and prevent the blades from deforming due to impact or vibration during harvesting. Two blade mounting pads 5 are fixedly connected to the outer side of the outer reinforcing plate 7. Each blade mounting pad 5 has a mounting screw hole 6 inside. A weight reduction groove 3 is opened in the middle of the upper end of the harvester's blade structure 1. The weight reduction groove 3 is used to reduce the overall weight of the blade structure and improve the operating efficiency and energy utilization of the harvester. Two reinforcing ribs 4 are arranged through the middle of the upper end of the harvester's blade structure 1. Both reinforcing ribs 4 are fixedly connected to the harvester's blade structure 1. The reinforcing ribs 4 further enhance the strength and stability of the blade structure and prevent breakage during harvesting. By adding reinforcing plates 7 and reinforcing ribs 4, the durability of the blade structure is improved, enabling it to withstand longer periods of high-intensity harvester operation and reducing the frequency of maintenance and replacement.

[0029] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A rust-resistant moving blade for a harvester, comprising a harvester moving blade body structure, characterized in that: The harvester's blade structure (1) has a blade (2) on its front side. The harvester's blade structure (1) includes a substrate layer (101), a protective electroplating layer (102), a rust-proof underlayer (103), and a hardening layer (104). The substrate layer (101) is located in the middle of the harvester's blade structure. The substrate layer (101) has a hardening layer (104) on both its inner and outer sides. The hardening layer (104) on both its inner and outer sides has a rust-proof underlayer (103) on its outer side. The two rust-proof underlayers (103) have a protective electroplating layer (102) on their outer sides. The protective electroplating layer (102) is a chromium-nickel plating layer. The rust-proof underlayer (103) is made of epoxy resin.

2. The rust-resistant moving blade for a harvester according to claim 1, characterized in that: The upper inner and outer sides of the harvester's motor blade structure (1) are fixedly connected with reinforcing plates (7), and two blade mounting pads (5) are fixedly connected to the outer side of the outer reinforcing plate (7).

3. The rust-resistant moving blade for a harvester according to claim 2, characterized in that: Both blade mounting pads (5) have mounting screw holes (6) inside.

4. The anti-rust moving blade for a harvester according to claim 1, characterized in that: The upper middle part of the harvester's motor blade structure (1) has a weight reduction groove (3).

5. The anti-rust moving blade for a harvester according to claim 1, characterized in that: Two reinforcing ribs (4) are provided through the middle of the upper end of the harvesting motor blade structure (1), and both reinforcing ribs (4) are fixedly connected to the harvesting motor blade structure (1).

6. The anti-rust moving blade for a harvester according to claim 1, characterized in that: The substrate layer (101) is made of chromium-silicon alloy steel.

7. The rust-resistant moving blade for a harvester according to claim 1, characterized in that: The hardened layer (104) is made of titanium nitride.

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