A replaceable split cutter assembly for a tomato harvester

Abstract

The utility model relates to agricultural machinery technical field especially is used for a kind of replaceable split type cutter device for tomato harvester, including tool rest, tool rest is provided with cutter slot;Split type cutter, a plurality of split type cutters are installed in the cutter slot, the split type cutter has sawtooth, and the sawtooth extends out the cutter slot outside;Crank rocker assembly, the tool rest is installed on crank rocker assembly, and one end of the crank rocker assembly is also connected with crank assembly.The utility model is beneficial to quickly replace cutter, improve tomato harvesting efficiency.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a replaceable split-type cutter device for a tomato harvester. Background Technology

[0002] In my country, processing tomatoes are generally cultivated using plastic film mulching. When they mature, the tomato plants grow in a bent, creeping shape on the ground, becoming severely entangled and complex in shape.

[0003] The Xinjiang tomato harvester market is dominated by self-propelled tomato harvesters, which consist of working components such as cutting and picking devices, vine separation devices, color sorting devices, hydraulic systems, and conveying devices. With the development of machine vision learning, data-driven color selection methods have also been explored. Current tomato harvesters use a one-piece cutter. Because they operate close to the ground in complex field environments with numerous impurities such as residual film, sand, and drip irrigation tape, the film and sand picked up by the vine-picking mechanism accelerate the wear of the cutter. Worn-out cutters cannot cut the tomato vines immediately, leading to blockages in the cutting platform and damage to the tomato fruit. Replacing the entire cutter with a one-piece cutter requires downtime for maintenance, resulting in high replacement costs, time-consuming and labor-intensive disassembly and assembly, and significant downtime, severely impacting harvesting efficiency.

[0004] Therefore, those skilled in the art are dedicated to developing a replaceable split-type cutter device for tomato harvesters, which facilitates quick cutter replacement and improves tomato harvesting efficiency. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a replaceable split-type cutter device for a tomato harvester, which facilitates quick cutter replacement and improves tomato harvesting efficiency.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0007] A replaceable split-type cutter device for a tomato harvester, comprising:

[0008] A tool holder, wherein a cutting groove is provided on the tool holder;

[0009] Split-type cutter, wherein multiple split-type cutters are installed in the cutter groove, the split-type cutter having serrations that extend beyond the cutter groove;

[0010] A crank-rocker assembly, wherein the tool holder is mounted on the crank-rocker assembly, and one end of the crank-rocker assembly is also connected to a crank assembly.

[0011] The advantages of adopting the above solution are as follows: By using replaceable split cutters, multiple split cutters are installed in the cutter slots of the cutter holder. When some split cutters are worn or damaged, there is no need to replace the whole cutter as with an integrated cutter. Only the damaged split cutter needs to be replaced quickly. This greatly reduces the time required to replace the cutters, avoids long downtime for maintenance, and thus significantly improves the overall efficiency of tomato harvesting. It also reduces the risk of harvesting delays caused by cutting cutters and ensures that harvesting operations can be carried out continuously and efficiently.

[0012] By mounting the blade holder on the crank-rocker assembly, and connecting one end of the crank-rocker assembly to the crank assembly, a reasonable mechanical transmission structure is formed, which can effectively transmit power and enable the split-type cutter to achieve stable reciprocating motion or oscillation during operation, ensuring the accuracy and continuity of the cutting action.

[0013] Based on the above technical solution, the present invention can be further improved as follows.

[0014] Furthermore, both ends of the tool holder are bent upwards.

[0015] The beneficial effect of adopting the above-mentioned further solution is that the two ends of the tool holder are bent upward to avoid the two ends hooking up the ground film and other impurities during reciprocating motion.

[0016] Furthermore, the crank rocker assembly includes an active cutting arm and a driven cutting arm. One end of the active cutting arm and one end of the driven cutting arm are respectively hinged to both ends of the tool holder, and the other end of the active cutting arm and the other end of the driven cutting arm are hinged together by a driven pull rod.

[0017] The beneficial effects of adopting the above-mentioned further solution are as follows: by connecting the active cutting arm and the driven cutting arm with an articulation, a stable power transmission and motion control structure is constructed, enabling the split-type cutter to achieve precise, continuous and stable cutting action, adapting to tomato plants of different varieties and growth stages, improving the cutting effect. The dual-arm structure can also improve the stability and robustness of the cutter, ensuring its reliable operation in high-speed and complex working environments and reducing the risk of failure.

[0018] Furthermore, both the active cutting arm and the driven cutting arm include a first cutting arm and a second cutting arm. One end of the first cutting arm is hinged to the driven pull rod, the other end of the first cutting arm is hinged to the end of the second cutting arm, and the other end of the second cutting arm is hinged to the tool holder.

[0019] The height of the hinged connection between the first cutting arm and the second cutting arm is greater than the height of the other end of the first cutting arm and the other end of the second cutting arm.

[0020] The beneficial effect of adopting the above-mentioned further solution is that the height of the hinged connection is greater than that of the end, so that both the first and second cutting arms are set at an angle, which is conducive to cutting tomato plants.

[0021] Furthermore, the crank assembly includes an active pull rod, one end of which is hinged to the crank rocker assembly, and the other end of which is connected to the outer edge of the rotating disk via a shaft head. The rotating disk is also connected to a drive device.

[0022] The beneficial effects of adopting the above-mentioned further solution are: the crank assembly consists of an active tie rod, a shaft head, a rotating disk and a drive device, which can effectively transmit power, realize the reciprocating swing of the split cutter, ensure the continuity and stability of the cutting action, and meet different operational needs.

[0023] Furthermore, a positioning boss is provided in the cutter groove, and the split cutter has a positioning groove that cooperates with the positioning boss.

[0024] The advantages of adopting the above-mentioned further solution are: the positioning boss and the positioning groove can quickly and accurately position the split cutter, simplify the installation process, improve the replacement efficiency, and at the same time ensure installation stability, prevent displacement and loosening, and guarantee the cutting effect.

[0025] Furthermore, the blade surface of the split-type cutter is laser-coated with a 0.2mm-0.5mm thick tungsten carbide wear-resistant coating.

[0026] The beneficial effects of adopting the above-mentioned further solution are: laser cladding of tungsten carbide wear-resistant coating on the blade surface significantly improves wear resistance and hardness, extends service life, reduces replacement frequency, reduces maintenance costs, and the coating thickness is moderate, balancing wear resistance and blade sharpness.

[0027] Furthermore, the active pull rod is also equipped with a telescopic component.

[0028] The beneficial effect of adopting the above-mentioned further solution is that the length of the active pull rod can be flexibly adjusted by the active pull rod telescopic assembly.

[0029] Furthermore, the split-type cutter includes a blade, and the blade is also provided with a cutter mounting hole, through which a screw passes and connects to the cutter groove.

[0030] The beneficial effects of adopting the above-mentioned further solution are: the split cutter consists of a blade and a cutter mounting hole, and the screw passes through the mounting hole to connect with the cutter groove. This connection method is stable and reliable, ensuring the stable operation of the cutter under high-speed vibration, preventing loosening and displacement, and ensuring cutting quality. Attached Figure Description

[0031] Figure 1This is a schematic diagram of the replaceable split-type cutter device for a tomato harvester according to a specific embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram of the tool holder and split-type cutting blade structure of a specific embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram of the tool holder structure according to a specific embodiment of the present utility model;

[0034] Figure 4 This is a schematic diagram of a split-type cutter structure according to a specific embodiment of the present invention;

[0035] The attached diagram lists the components represented by each number as follows:

[0036] 1. Tool holder; 2. Split-type cutter; 3. Active cutting arm; 4. Driven pull rod; 5. Active pull rod; 6. Shaft head; 7. Drive unit; 8. Rotary disk; 9. Driven cutting arm; 11. Cutter groove; 12. Cutter holder mounting hole; 13. Screw; 21. Blade; 22. Cutter mounting hole; 23. Serrated edge; 31. First cutting arm; 32. Second cutting arm. Detailed Implementation

[0037] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0038] In the description of this utility model, it should be understood that the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "circumferential", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the system or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a replaceable split-type cutter device for a tomato harvester includes...

[0042] The cutter holder 1 has a cutting groove 11 and a cutting tool holder mounting hole 12. The two ends of the cutter holder 1 are bent upward to prevent the two ends from hooking up the ground film and other impurities during reciprocating motion.

[0043] Split-type cutter 2, multiple split-type cutters 2 are installed in the cutter groove 11, the split-type cutter 2 has serrations 23, and the serrations 23 extend out of the cutter groove 11;

[0044] The crank-rocker assembly has a tool holder 1 mounted on it, and one end of the crank-rocker assembly is also connected to a crank assembly.

[0045] In this utility model, a replaceable split-type cutter 2 is adopted. Multiple split-type cutters 2 are installed in the cutter groove 11 of the cutter holder 1. When some split-type cutters 2 are worn or damaged, there is no need to replace the whole cutter as with an integrated cutter. Only the damaged split-type cutter 2 needs to be replaced quickly. This greatly reduces the time required to replace the cutter and avoids long-term downtime for maintenance.

[0046] like Figure 1 As shown, in some embodiments, the crank rocker assembly includes an active cutting arm 3 and a driven cutting arm 9. The active cutting arm 3 and the driven cutting arm 9 are symmetrically arranged along the center line of the tool holder 1. One end of the active cutting arm 3 and one end of the driven cutting arm 9 are respectively hinged to both ends of the tool holder 1. The other end of the active cutting arm 3 and the other end of the driven cutting arm 9 are hinged together by a driven pull rod 4 to form a structure similar to a parallelogram.

[0047] In a specific embodiment, both the active cutting arm 3 and the driven cutting arm 9 include a first cutting arm 31 and a second cutting arm 32. One end of the first cutting arm 31 is hinged to the driven pull rod 4, and the other end of the first cutting arm 31 is hinged to the end of the second cutting arm 32. The other end of the second cutting arm 32 is hinged to the blade holder 1. The height of the hinge connection between the first cutting arm 31 and the second cutting arm 32 is greater than the other end of the first cutting arm 31 and the other end of the second cutting arm 32. The hinge connection between the first cutting arm 31 and the second cutting arm 32 is hinged to the tomato harvesting device.

[0048] like Figure 1 As shown, in some embodiments, the crank assembly includes an active pull rod 5. One end of the active pull rod 5 is hinged to the crank rocker assembly, specifically to the active cutting arm 3. The other end of the active pull rod 5 is connected to the outer edge of the rotating disk 8 via a shaft head 6. The rotating disk 8 is also connected to a drive device 7, which can be an electric motor or a hydraulic motor. The drive device 7 drives the rotating disk 8 to rotate, causing the shaft head 6 to rotate eccentrically around the rotating disk 8, thereby causing the crank connecting rod assembly to oscillate reciprocally. In other embodiments, the active pull rod 5 is also provided with a telescopic component. The telescopic component can be an adjusting screw. One end of the adjusting screw is threadedly connected to the active pull rod 5, and the other end is threadedly connected to the shaft head 6. A locking nut is also fitted on the adjusting screw. The overall length between the active pull rod 5 and the shaft head 6 is adjusted by adjusting the distance the adjusting screw is inserted into the active pull rod 5.

[0049] like Figure 3 and Figure 4 As shown, in some embodiments, a positioning boss is also provided in the cutter groove 11, and the split-type cutter 2 has a positioning groove that cooperates with the positioning boss. The cooperation between the positioning boss and the positioning groove can quickly and accurately position the split-type cutter, while ensuring installation stability, preventing displacement and loosening, and ensuring the cutting effect. In order to reduce the wear rate of the split-type cutter 2, the blade surface of the split-type cutter 2 is laser-coated with a 0.2mm-0.5mm thick tungsten carbide wear-resistant coating.

[0050] The split-type cutter 2 includes a blade 21, which is also provided with a cutter mounting hole 22. A screw 13 passes through the cutter mounting hole 22 and connects to the cutter holder mounting hole 12 on the cutter groove 11, thereby fixing the split-type cutter 2 firmly.

[0051] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0052] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A replaceable split-type cutter device for a tomato harvester, characterized in that: include A tool holder (1) is provided with a cutting groove (11). Split-type cutter (2), a plurality of the split-type cutters (2) are installed in the cutter groove (11), the split-type cutter (2) has serrations (23) and the serrations (23) extend out of the cutter groove (11); A crank-rocker assembly, wherein the tool holder (1) is mounted on the crank-rocker assembly, and one end of the crank-rocker assembly is also connected to a crank assembly.

2. The replaceable split-type cutter device for a tomato harvester according to claim 1, characterized in that: The tool holder (1) is bent upward at both ends.

3. The replaceable split-type cutter device for a tomato harvester according to claim 1, characterized in that: The crank rocker assembly includes an active cutting arm (3) and a driven cutting arm (9). One end of the active cutting arm (3) and one end of the driven cutting arm (9) are respectively hinged to both ends of the tool holder (1). The other end of the active cutting arm (3) and the other end of the driven cutting arm (9) are hinged to each other via a driven pull rod (4).

4. The replaceable split-type cutter device for a tomato harvester according to claim 3, characterized in that: Both the active cutting arm (3) and the driven cutting arm (9) include a first cutting arm (31) and a second cutting arm (32). One end of the first cutting arm (31) is hinged to the driven pull rod (4), the other end of the first cutting arm (31) is hinged to the end of the second cutting arm (32), and the other end of the second cutting arm (32) is hinged to the tool holder (1). The height of the hinge connection between the first cutting arm (31) and the second cutting arm (32) is greater than the other end of the first cutting arm (31) and the other end of the second cutting arm (32).

5. The replaceable split-type cutter device for a tomato harvester according to claim 1, characterized in that: The crank assembly includes an active pull rod (5), one end of which is hinged to the crank rocker assembly, and the other end of which is connected to the outer edge of the rotating disk (8) via a shaft head (6). The rotating disk (8) is also connected to a drive device (7).

6. The replaceable split-type cutter device for a tomato harvester according to claim 1, characterized in that: The cutter groove (11) is also provided with a positioning boss, and the split cutter (2) has a positioning groove that cooperates with the positioning boss.

7. The replaceable split-type cutter device for a tomato harvester according to claim 1, characterized in that: The blade surface of the split-type cutter (2) is laser-coated with a tungsten carbide wear-resistant coating with a thickness of 0.2mm-0.5mm.

8. The replaceable split-type cutter device for a tomato harvester according to claim 5, characterized in that: The active pull rod (5) is also equipped with a telescopic component.

9. The replaceable split-type cutter device for a tomato harvester according to claim 1, characterized in that: The split-type cutter (2) includes a blade (21), and the blade (21) is also provided with a cutter mounting hole (22). A screw (13) passes through the cutter mounting hole (22) and is connected to the cutter groove (11).

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