Grain lifting device for grain harvester

Abstract

The utility model discloses a grain lifting device for a grain harvester, which belongs to the technical field of agricultural machinery and comprises a harvester body and a lifting component fixedly arranged on the outer side of the harvester body, the lifting component comprises a lifting pipeline and a conveying plate, two chain wheels are rotatably arranged in the lifting pipeline, and the conveying plate is arranged on the conveying plate. A motor used for driving one chain wheel to rotate is arranged on the outer side of the lifting pipeline, a lifting chain used for installing a conveying plate is arranged between the two chain wheels in a sleeving mode, and an attached plate used for installing the conveying plate is arranged on the surface of the lifting chain. The lifting chain has the advantages that the processed attaching plates are installed on the lifting chain, high-strength and high-toughness mechanical performance is effectively provided to deal with high-strength grain conveying operation, the time for a grain harvester to stop and maintain the lifting device can be shortened, the grain harvesting efficiency is improved, and the labor intensity of workers is reduced. And the economic loss caused by maintenance is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a grain lifting device for a grain harvester. Background Art

[0002] Currently, large grain harvesters on the market are generally used to harvest wheat, corn or soybeans. During the harvesting process, the grain is harvested or stored by the grain lifting device on the harvester. The grain is transported from the inlet to the outlet by a fixed conveyor plate on the lifting chain. During the operation of the lifting chain, the conveyor plate bears the heavy grain and is easily bent. It cannot provide high-strength and high-toughness mechanical properties to cope with high-intensity grain transportation operations. Once the grain lifting chain is abnormal or broken, it will seriously damage the lifting system of the grain harvester, which will not only delay the progress of the grain harvesting operation, but also cause economic losses to farmers due to the damage to the harvesting equipment. Utility Model Content

[0003] The purpose of the utility model is to solve the above-mentioned technical problems and to propose a grain lifting device for a grain harvester.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A grain lifting device for a grain harvester comprises a harvester body and a lifting assembly fixedly arranged on the outside of the harvester body, the lifting assembly comprising a lifting pipe and a conveying plate, two sprockets are rotatably arranged inside the lifting pipe, one of the sprockets is located above the inside of the lifting pipe, and the other sprocket is located below the inside of the lifting pipe, a motor for driving one of the sprockets to rotate is arranged on the outside of the lifting pipe, a lifting chain for installing the conveying plate is sleeved between the two sprockets, and an auxiliary plate for installing the conveying plate is arranged on the surface of the lifting chain.

[0006] As a further description of the above technical solution:

[0007] The number of the attached plates is multiple and they are symmetrically and equidistantly arranged on the surface of the lifting chain.

[0008] As a further description of the above technical solution:

[0009] The conveying plate is fixedly connected to two left-right symmetrical attachment plates.

[0010] As a further description of the above technical solution:

[0011] The attachment plate is made of a metal material of medium carbon alloy steel.

[0012] As a further description of the above technical solution:

[0013] The surface of the attachment plate is provided with a first mounting hole for connecting the conveying plate, and the surface of the attachment plate is also provided with a second mounting hole for connecting the lifting chain. The conveying plate is fixedly connected to the attachment plate by bolts, and a gasket is provided at the bolt connection.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0015] In the utility model, by installing a processed auxiliary plate on the lifting chain, high-strength and high-toughness mechanical properties are effectively provided to cope with high-intensity grain transportation operations, and the downtime of the grain harvester to repair the lifting device can be reduced, the efficiency of grain harvesting is increased, and the economic losses caused by maintenance are greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the appearance structure of a grain harvester provided according to an embodiment of the utility model is shown;

[0017] Figure 2 It shows a schematic structural diagram of the lifting chain provided by an embodiment of the utility model without the conveying plate installed from a first viewing angle;

[0018] Figure 3 It shows a second perspective structural schematic diagram of the lifting chain provided by the embodiment of the utility model without the conveying plate installed;

[0019] Figure 4 A schematic diagram of the structure of the attachment plate provided in the first perspective according to an embodiment of the utility model is shown;

[0020] Figure 5 A schematic diagram of the structure of the attachment plate provided in a second viewing angle according to an embodiment of the utility model is shown;

[0021] Figure 6 It shows a first-view structural schematic diagram of the lifting chain after the conveying plate is installed according to an embodiment of the utility model;

[0022] Figure 7 A second perspective structural schematic diagram of the lifting chain after the conveying plate is installed according to an embodiment of the utility model is shown.

[0023] Legend: 1. Harvester body; 2. Lifting assembly; 21. Lifting chain; 22. Attachment plate; 23. First mounting hole; 24. Second mounting hole; 25. Conveying plate; 26. Bolt; 27. Lifting pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1:

[0026] As shown in 1-7, a grain lifting device for a grain harvester includes a harvester body 1 and a lifting assembly 2 fixedly arranged on the outside of the harvester body 1, the lifting assembly 2 includes a lifting pipe 27 and a conveying plate 25, two sprockets are rotatably arranged inside the lifting pipe 27, one of the sprockets is located at the upper part of the lifting pipe 27, and the other sprocket is located at the lower part of the lifting pipe 27, a motor is provided on the outside of the lifting pipe 27 for driving one of the sprockets to rotate, a lifting chain 21 for installing the conveying plate 25 is provided between the two sprockets, and an attachment plate 22 for installing the conveying plate 25 is provided on the surface of the lifting chain 21.

[0027] Furthermore, there are multiple attachment plates 22 which are symmetrically and equidistantly arranged on the surface of the lifting chain 21 . The spacing between the attachment plates 22 determines the installation spacing of the conveying plates 25 , and further determines the working efficiency of the lifting assembly 2 in conveying grains.

[0028] Furthermore, the conveying plate 25 is fixedly connected to two symmetrical attachment plates 22, which can significantly improve the bending resistance of the conveying plate 25, avoid bending of the conveying plate 25 due to heavy grains and cause the grains to fall, thereby improving the grain lifting efficiency.

[0029] Furthermore, the attached plate 22 is made of a metal material of medium carbon alloy steel, the carbon content of the medium carbon alloy steel raw material is in the range of 0.30%-0.60%, and the chromium content is 0.40%-1.10%. After the attached plate 22 is stamped and formed, it is combined with the isothermal quenching heat treatment technology to transform the metallographic microstructure of the attached plate 22 into lower bainite, thereby effectively improving the strength and fatigue resistance of the attached plate 22. Mechanical properties.

[0030] Furthermore, a first mounting hole 23 for connecting the conveying plate 25 is provided on the surface of the attachment plate 22, and a second mounting hole 24 for connecting the lifting chain 21 is also provided on the surface of the attachment plate 22. The conveying plate 25 is fixedly connected to the attachment plate 22 by bolts 26, and a gasket is provided at the connection of the bolts 26, which effectively increases the contact area between the bolts 26 and the conveying plate 25 and ensures the firmness of the connection of the bolts 26.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A grain lifting device for a grain harvester, comprising a harvester body (1) and a lifting assembly (2) fixedly arranged on the outside of the harvester body (1), the lifting assembly (2) comprising a lifting pipe (27) and a conveying plate (25), two sprockets are rotatably arranged inside the lifting pipe (27), one of the sprockets is located at the upper part of the lifting pipe (27), and the other sprocket is located at the lower part of the lifting pipe (27), a motor is arranged on the outside of the lifting pipe (27) for driving one of the sprockets to rotate, a lifting chain (21) for mounting the conveying plate (25) is arranged between the two sprockets, and the characteristics are as follows: The surface of the lifting chain (21) is provided with an attachment plate (22) for installing the conveying plate (25), and the attachment plate (22) is made of a metal material such as medium carbon alloy steel.

2. A grain lifting device for a grain harvester according to claim 1, characterized in that: The attached plates (22) are multiple in number and are arranged on the surface of the lifting chain (21) in a symmetrical and equidistant manner.

3. A grain lifting device for a grain harvester according to claim 1, characterized in that: The conveying plate (25) is fixedly connected to two left-right symmetrical attachment plates (22).

4. A grain lifting device for a grain harvester according to claim 1, characterized in that: The surface of the attachment plate (22) is provided with a first mounting hole (23) for connecting the conveying plate (25), and the surface of the attachment plate (22) is also provided with a second mounting hole (24) for connecting the lifting chain (21). The conveying plate (25) is fixedly connected to the attachment plate (22) by bolts (26), and a gasket is provided at the connection of the bolts (26).

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