Electric drive cylinder structure and combine harvester

Abstract

The utility model provides a kind of electric drive threshing cylinder structure and combine harvester, for combine harvester, the electric drive threshing cylinder structure includes: threshing cylinder, for grain threshing and the center shaft is arranged in the threshing cylinder through;Gearbox, for installation in the rack of the combine harvester and close to the input end of the center shaft setting;Driving motor, installation in the gearbox of the gearbox, the input end of the center shaft is connected by transmission of the gearbox and the driving motor, the output end of the center shaft is supported on the rack, the driving motor is for driving the threshing cylinder by the gearbox and the center shaft.The utility model directly connects gearbox by driving motor, gearbox directly connects the center shaft of threshing cylinder, power, speed change and threshing cylinder form integrated arrangement, significantly improve the integration of system and mechanical efficiency, so that space installation is more free, especially suitable for the installation demand of compact side space of combine harvester.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery technology, and in particular relates to an electric drive threshing drum structure and a combine harvester. Background Technology

[0002] Currently, most combine harvesters' threshing drums are driven by the engine through multi-stage belt drives. The power is transmitted from the engine pulley on the roof to various parts of the machine, and then to the threshing drum through multiple sets of belt and chain drives. Due to the large front-to-back span of the machine and the need for power input on both sides, multiple intermediate drive shafts are required for combined transmission.

[0003] This type of transmission has multiple stages, affecting transmission efficiency. It not only occupies a lot of space but also easily leads to energy loss and maintenance problems. Therefore, existing belt drive solutions are not suitable for the increasing demands of agricultural machinery. Faced with increasingly powerful agricultural machinery, this traditional solution will lose more power due to its low efficiency. Utility Model Content

[0004] The main purpose of this utility model is to propose an electric drive threshing drum structure and a combine harvester, aiming to solve the technical problems of large space occupation and low transmission efficiency of the drive device of the existing threshing drum structure.

[0005] To achieve the above objectives, this utility model provides an electrically driven threshing drum structure for a combine harvester. The electrically driven threshing drum structure includes: a threshing drum for threshing grain, with a central shaft running through it; a gearbox for mounting on the frame of the combine harvester and located near the input end of the central shaft; and a drive motor mounted in the gearbox housing. The input end of the central shaft is connected to the drive motor via the gearbox, and the output end of the central shaft is supported on the frame. The drive motor drives the threshing drum through the gearbox and the central shaft.

[0006] In this embodiment of the utility model, the electric drive threshing drum structure further includes a transmission half-shaft located outside the threshing drum. One end of the transmission half-shaft is detachably connected to the central shaft, and the other end is connected to the gearbox.

[0007] In this embodiment of the utility model, the gearbox is provided with an output shaft with internal splines, the transmission half shaft is an external spline shaft, and the transmission half shaft passes through the gearbox and is connected to the output shaft by splines.

[0008] In this embodiment of the invention, the output end of the central shaft includes an extension portion located on the threshing drum, and a wheel assembly for outputting power outward is provided on the extension portion.

[0009] In this embodiment of the utility model, the gearbox is further provided with an input interface with an internal spline, and the drive motor is provided with an external spline shaft. The external spline shaft and the input interface are connected by a spline.

[0010] In this embodiment of the invention, the frame is provided with a bearing seat, and the output end of the central shaft is provided with a bearing, which is mounted on the bearing seat.

[0011] In this embodiment of the invention, the drive motor and the gearbox housing are detachably connected.

[0012] In this embodiment of the utility model, the threshing drum includes: a plurality of discs welded on the central shaft, the plurality of discs being spaced apart along the axial direction of the central shaft; a cylinder, the central shaft passing through the cylinder, and the outer side of the discs being connected to the cylinder, the outer surface of the cylinder also being provided with a threshing structure.

[0013] In this embodiment of the invention, the threshing structure includes a support base disposed on the outer surface of the cylinder and a textured rod detachably mounted on the support base.

[0014] This utility model also proposes a combine harvester, which includes a frame and an electrically driven threshing drum structure as described above.

[0015] Through the above technical solution, the electrically driven threshing drum structure provided in this utility model embodiment has the following beneficial effects: The electric threshing drum structure in this embodiment uses a drive motor as its power source, instead of the engine used in the prior art. It also eliminates the need for an auxiliary power source. Furthermore, the drive motor and gearbox are directly connected without any intermediate transmission components. The gearbox and the central shaft of the threshing drum are also directly connected, saving on transmission component costs and reducing the space occupied by the electric threshing drum structure. Both the gearbox and drive motor are positioned close to the threshing drum, located at the input end of the central shaft, with the drive motor mounted on the gearbox housing. This shortens the transmission path and reduces power consumption. This invention integrates the power, transmission, and threshing drum into a single unit by directly connecting the drive motor to the gearbox, which in turn is directly connected to the central shaft of the threshing drum. This significantly improves the system's integration and mechanical efficiency, allowing for more flexible spatial installation, and is particularly suitable for the compact installation requirements of combine harvesters.

[0016] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0017] The accompanying drawings are provided to illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a cross-sectional structural schematic diagram of an electrically driven threshing drum structure according to an embodiment of the present invention; Figure 2 This is a partial structural schematic diagram of an electrically driven threshing drum structure according to an embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures Detailed Implementation

[0019] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0020] The structure of the electrically driven threshing drum according to the present invention is described below with reference to the accompanying drawings.

[0021] like Figure 1 and Figure 2 As shown in the embodiment of this utility model, the electric-driven threshing drum structure is used in a combine harvester. The electric-driven threshing drum structure includes a threshing drum 1, a gearbox 2, and a drive motor 3. The threshing drum 1 is used for threshing grain, and a central shaft 11 is installed through the threshing drum 1. The gearbox 2 is used to be installed on the frame of the combine harvester and is located near the input end of the central shaft 11. The drive motor 3 is installed in the housing of the gearbox 2. The input end of the central shaft 11 is connected to the drive motor 3 through the gearbox 2. The output end of the central shaft 11 is supported on the frame. The drive motor 3 is used to drive the threshing drum 1 through the gearbox 2 and the central shaft 11.

[0022] The drive motor 3 is directly connected to the gearbox 2, and the gearbox 2 is directly connected to the central shaft 11. This eliminates the need for transmission components, reduces assembly space, and avoids the low efficiency of belt drives due to their multiple layers by using the drive motor 3 for drive and shaft transmission. Electric drive improves transmission efficiency, and the drive motor 3 serves as the power source for the working components. The peak power of the drive motor 3 is higher than that of belt drives, which improves overload capacity. The drive belt in the existing combine harvester is eliminated, and the elimination of the belt, which is a vulnerable part, improves reliability.

[0023] In this embodiment, the electric drive threshing drum structure uses a drive motor 3 as its power source, instead of the engine used in the prior art. It also eliminates the need for an auxiliary power source. Furthermore, the drive motor 3 and the gearbox 2 are directly connected without any additional transmission components. Similarly, the gearbox 2 and the central shaft 11 of the threshing drum 1 are directly connected without any additional transmission components. This saves on transmission component costs and reduces the space occupied by the electric drive threshing drum structure. Both the gearbox 2 and the drive motor 3 are positioned close to the threshing drum, and both are located at the input end of the central shaft 11. The drive motor 3 is mounted on the gearbox 2 housing, shortening the transmission path and reducing power consumption. In this embodiment, the drive motor 3 is directly connected to the gearbox 2, and the gearbox 2 is directly connected to the central shaft 11 of the threshing drum 1, integrating the power, transmission, and threshing drum 1 into a single unit. This significantly improves the system's integration and mechanical efficiency, allowing for more flexible spatial installation, and is particularly suitable for the compact installation requirements of combine harvesters.

[0024] Specifically, the electric drive threshing drum structure also includes a drive half-shaft 4 located outside the threshing drum 1. One end of the drive half-shaft 4 is detachably connected to the central shaft 11, and the other end is connected to the gearbox 2. In this embodiment, the drive half-shaft 4 is exposed relative to the threshing drum 1, and the central shaft 11 is connected to the gearbox 2 through the drive half-shaft 4, which facilitates the subsequent disassembly, assembly, and maintenance of the drive half-shaft 4.

[0025] In one embodiment, the gearbox 2 is equipped with an output shaft with internal splines, and the drive half-shaft 4 is an external spline shaft. The drive half-shaft 4 passes through the gearbox 2 and is connected to the output shaft via splines. In this embodiment, the output shaft is a hollow shaft. The drive half-shaft 4 and the output shaft are fitted inside the gearbox 2, which avoids the transmission connection structure being exposed and interfered with by external components, and makes the connection between the gearbox 2 and the threshing drum 1 tighter, further improving the structural compactness of the electric drive threshing drum structure. The drive half-shaft 4 and the output shaft can be detachably connected by flanges or bolts. Specifically, the drive half-shaft 4 and the output shaft can be locked by the cooperation of a copper sleeve 6, a locking washer, and a round nut 7. One end of the drive half-shaft 4 is fitted with the inner hole of the output shaft, and the other end is fitted with the copper sleeve 6. The copper sleeve 6 is fitted with the inner hole of the output shaft, and the locking washer and round nut 7 are locked on the outside.

[0026] In another embodiment, the drive half-shaft 4 may not mate with the gearbox 2 within the gearbox 2. The internal spline of the output shaft of the gearbox 2 can be omitted, and the output shaft becomes a hollow shaft. A flange structure is newly provided on the outside of the hollow shaft. The drive half-shaft 4 passes through the hollow inner hole of the hollow shaft and mates with a spline sleeve with a flange having mounting holes on the outside. The spline sleeve is then bolted to the flange of the hollow shaft. This arrangement, with the connection structure located on the outside of the gearbox 2, facilitates the installation and disassembly of components.

[0027] It should be noted that the output end of the central shaft 11 includes an extension 111 located on the threshing drum 1, and a wheel assembly 112 for outputting power outward is provided on the extension 111. For example... Figure 1 As shown, in this embodiment, the left side of the central shaft 11 is the output end and the right side is the input end. The output end is provided with an extension 111 extending out of the threshing drum 1. Through the wheel set 112 connected to the extension 111, other structures can be driven. This design makes the central shaft 11 not only undertake the rotation function of the threshing drum 1, but also serve as a medium for power transmission, thereby improving the flexibility and efficiency of the overall system.

[0028] Understandably, the gearbox 2 also has an input interface with internal splines, and the drive motor 3 has an external spline shaft, which is connected to the input interface via splines. In this practical example, the input interface is located inside the gearbox 2, and the external spline shaft extends into the gearbox 2 and is splined to the input interface, which improves the structural compactness between the gearbox 2 and the drive motor 3.

[0029] like Figure 1 As shown, the frame is equipped with a bearing housing, and the output end of the central shaft 11 is equipped with a bearing 113, which is mounted on the bearing housing. In this embodiment, the output end of the central shaft 11 is mounted on the bearing housing of the frame via the bearing 113, ensuring that the central shaft 11 can rotate smoothly.

[0030] It should be noted that the drive motor 3 and the gearbox 2 are detachably connected. In this embodiment, the threshing drum 1, gearbox 2, and drive motor 3 are connected sequentially in the left-right direction, with the drive motor 3 mounted on top of the gearbox 2, the transmission half-shaft 4 positioned near the bottom of the gearbox 2, and the input interface and output shaft of the gearbox 2 arranged sequentially in the up-down direction. The drive motor 3 can be detachably connected to the gearbox 2 via flanges or bolts, facilitating subsequent disassembly and maintenance of the drive motor 3.

[0031] In this embodiment of the invention, the threshing drum 1 includes a flange 12 and a cylinder 13. A plurality of flanges 12 are welded onto a central shaft 11, and these flanges 12 are spaced apart axially along the central shaft 11. The central shaft 11 passes through the cylinder 13, and the outer sides of the flanges 12 are connected to the cylinder 13. A threshing structure is also provided on the outer surface of the cylinder 13. The number of flanges 12 can be set according to actual usage requirements. In one embodiment, there is one flange 12; in other embodiments, there can be multiple flanges 12. These multiple flanges 12 cooperate to form the basic frame of the threshing drum 1, providing support and fixation. A cylinder 13 is welded to the outer side of the flanges 12, and a threshing structure for combine harvester grain threshing is welded to and installed on the outer surface of the cylinder 13.

[0032] like Figure 2As shown, in one embodiment, the threshing structure includes a support base 14 disposed on the outer surface of the cylinder 13 and a threshing rod 15 detachably mounted on the support base 14. The threshing rod 15 extends in the same direction as the central shaft 11, and the threshing rod 15 and the support base 14 are detachably connected, facilitating subsequent disassembly and replacement of the threshing rod 15. Threshing patterns may be provided on the threshing rod 15. In other embodiments, the threshing structure includes, but is not limited to, the support base 14 and the threshing rod 15.

[0033] This utility model also proposes a combine harvester, which includes a frame and the electric-driven threshing drum structure described above. The specific structure of this electric-driven threshing drum structure is as described in the above embodiments. Since the combine harvester adopts all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here. The remaining drums on the combine harvester can also be driven by a drive motor 3 sequentially connected to a gearbox 2 and a drum shaft.

[0034] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] 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, an electrical connection, or a connection that allows communication between them; 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.

[0036] 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.

[0037] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An electrostatically assisted beater cylinder structure for a combine harvester, characterized in that The electrically driven threshing drum structure includes: A threshing drum (1) is used for threshing grains and a central shaft (11) is provided through the inside of the threshing drum (1). A gearbox (2) is mounted on the frame of the combine harvester and disposed near the input end of the central shaft (11); The drive motor (3) is installed in the housing of the gearbox (2). The input end of the central shaft (11) is connected to the drive motor (3) through the gearbox (2). The output end of the central shaft (11) is supported on the frame. The drive motor (3) is used to drive the threshing drum (1) through the gearbox (2) and the central shaft (11).

2. The electro-decking cylinder structure according to claim 1, wherein, The electric drive threshing drum structure also includes a transmission half-shaft (4) located outside the threshing drum (1). One end of the transmission half-shaft (4) is detachably connected to the central shaft (11), and the other end is connected to the gearbox (2) for transmission.

3. The electro-decking cylinder structure according to claim 2, wherein, The gearbox (2) is equipped with an output shaft with an internal spline, and the transmission half shaft (4) is an external spline shaft. The transmission half shaft (4) passes through the gearbox (2) and is connected to the output shaft by a spline.

4. The electro-kinetic de-agglomeration cylinder structure according to any one of claims 1 to 3, characterized in that The output end of the central shaft (11) includes an extension (111) located on the threshing drum (1), and a wheel assembly (112) for outputting power outward is provided on the extension (111).

5. The electrically driven threshing drum structure according to any one of claims 1 to 3, characterized in that, The gearbox (2) is also provided with an input interface with an internal spline, and the drive motor (3) is provided with an external spline shaft. The external spline shaft and the input interface are connected by a spline.

6. The electro-kinetic particle removal cylinder structure of any one of claims 1 to 3, wherein, The frame is provided with a bearing seat, and the output end of the central shaft (11) is provided with a bearing (113), which is mounted on the bearing seat through the bearing (113).

7. The electro-kinetic particle removal cylinder structure of any one of claims 1 to 3, wherein, The drive motor (3) and the gearbox (2) are detachably connected.

8. The electro-prime cylinder structure of any of claims 1-3, wherein, The threshing drum (1) includes: A plurality of axle disks (12) are welded on the central shaft (11), and the plurality of axle disks (12) are spaced apart along the axial direction of the central shaft (11); The cylinder (13) has a central shaft (11) that passes through it, and the outer side of the disc (12) is connected to the cylinder (13). The outer surface of the cylinder (13) is also provided with a threshing structure.

9. The electro-decking cylinder structure according to claim 8, wherein, The threshing structure includes a support base (14) disposed on the outer surface of the cylinder (13) and a textured rod (15) detachably installed on the support base (14).

10. A combine harvester characterised in that, The combine harvester includes a frame and the electrically driven threshing drum structure as described in any one of claims 1 to 9.

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