Harvester drive system and harvester

Abstract

The utility model provides a kind of harvester transmission system and harvester, including engine, first pulley, main transmission shaft, second pulley, header transmission assembly, first sprocket, second sprocket, first gear box, third sprocket, fourth sprocket, fifth sprocket, sixth sprocket, fan transmission shaft and fan group, fan group is set on lifting device, fan group includes first fan and second fan sequentially arranged along the advancing direction of harvester, third pulley simultaneously drives first fan and the rotation of second fan, to realize cluster sorting, when adapting different types of harvester header, the type of fan group can be adjusted, single fan mode, double fan mode and three fan mode harvesting are set, only need to disassemble fan belt on third pulley and corresponding fan, without wide range adjustment harvester transmission structure.The utility model provides a kind of harvester transmission system structure simple, high reliability, wide range of application, can improve harvester operating efficiency.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery transmission, and in particular to a harvester transmission system and a harvester. Background Technology

[0002] There are two different types of corn headers on the market: plate headers and roller headers. Roller headers allow for non-row harvesting, offering greater adaptability. Plate headers, with their low-angle structure, are particularly effective for harvesting low-eared and lodged crops. Some existing harvesters can be interchanged between plate and roller headers based on user needs. However, when switching to a plate header, the impurity content during ear lifting is higher than with a roller header, leading to increased impurity during post-harvest processing. In this case, the roller header's lifting mechanism is no longer suitable for plate headers. Similarly, switching to a roller header results in redundant impurity removal devices in the ear lifting system, increasing harvester fuel consumption. In existing harvester transmission structures, when the lifting device is equipped with two or more fans, the fans are usually placed on the upper and lower sides of the lifting device. For example, in the patent application number CN202422422153.7, the fan shaft is connected through multiple transmission gears or transmission shafts, and the transmission power of the fan is output from a functional shaft in the lifting device. The load is large, and the functional shaft is prone to damage. In addition, the harvester's transmission structure is complex. During the process of adapting and adjusting the lifting device structure, users encounter difficulties in disassembly and assembly due to the complexity of the harvester's transmission structure, which is time-consuming and difficult, affecting the harvester's operating efficiency. Therefore, there is an urgent need for a harvester transmission system with a simple structure and strong applicability. Utility Model Content

[0003] The purpose of this utility model is to provide a harvester transmission system and a harvester, which has a simple transmission structure, high robustness, can be quickly disassembled and assembled, and has strong applicability.

[0004] According to one aspect of this utility model, a harvester transmission system is provided, including an engine, a first pulley, a main drive shaft, a second pulley, a header transmission assembly, a first sprocket, a second sprocket, a first gearbox, a third sprocket, a fourth sprocket, a fifth sprocket, a sixth sprocket, a fan drive shaft, and a fan unit; the first pulley is connected to the engine via a belt; the first pulley is disposed on one side of the main drive shaft and rotates synchronously with the first pulley; the second pulley is disposed on the other side of the main drive shaft and rotates synchronously with the main drive shaft; the header transmission assembly is drivenly connected to the second pulley, providing transmission power to the header; the first sprocket is sleeved on the main drive shaft near the side where the second pulley is located, providing power to the peeling device and the lifting device; the second sprocket is connected to the first sprocket via a chain drive; the second sprocket drives the... The first gearbox drives the peeling device. The third sprocket is located on the other side of the first gearbox and rotates synchronously with it. The fourth sprocket is connected to the third sprocket via a chain drive, driving the husk chopping device. The fifth sprocket is connected to the fourth sprocket via a chain drive. The sixth sprocket is connected to the fifth sprocket via a chain. The fan drive shaft is parallel to the main drive shaft. The sixth sprocket is located on one side of the fan drive shaft and rotates synchronously with it. A third pulley is located on the other side of the fan drive shaft. With the harvester's forward direction as the front, the fan unit is located on the lifting device. The fan unit includes a first fan and a second fan arranged sequentially along the harvester's forward direction. The third pulley simultaneously drives the first fan and the second fan to rotate, thereby achieving ear removal.

[0005] Since the first and second fans are driven synchronously by the third pulley, in the process of changing the structure of the lifting device, it is only necessary to disconnect the transmission connection between the first fan and the third pulley without making extensive changes to the transmission structure of the harvester. This allows the lifting device to be adjusted to be suitable for roller headers.

[0006] Preferably, the lifting device includes a lifting body, and the first fan and the second fan are sequentially arranged on the upper part of the lifting body along the forward direction of the harvester; the fan group also includes a third fan, which is arranged on the top of the lifting body.

[0007] Preferably, the fifth sprocket and the seventh sprocket are connected by chain drive; the seventh sprocket and the eighth sprocket are connected by chain drive; and the eighth sprocket and the ninth sprocket are connected by chain drive to drive the third fan to rotate.

[0008] Preferably, the projections of the first fan shaft of the first fan and the second fan shaft of the second fan on the horizontal plane are perpendicular to the fan drive shaft; the projection of the third fan shaft of the third fan on the horizontal plane is parallel to the fan drive shaft.

[0009] Preferably, the lifting device further includes an upper secondary stem-pulling roller and a lower secondary stem-pulling roller, wherein the upper secondary stem-pulling roller rotates synchronously with the eighth sprocket.

[0010] Preferably, the fifth sprocket is sleeved on one side of the transition shaft, the transition shaft is disposed inside the lifting device, and the other side of the transition shaft is fixed to the side wall of the lifting device body by a bearing.

[0011] Preferably, the fourth sprocket is sleeved on one side of the peeling and chopping shaft, and the peeling and chopping shaft is arranged parallel to the transition shaft to drive the peeling device to chop the bud leaves.

[0012] Preferably, the seventh sprocket is sleeved on one side of the lifting chain rake shaft, which is located between the transition shaft and the upper secondary pull roller, and is used to drive the lifting chain rake to rotate.

[0013] Preferably, a second gearbox is provided on the top of the first fan and the second fan, and one side of the second gearbox is connected to the third pulley by a belt to transmit power to the shaft of the first fan and the shaft of the second fan.

[0014] The embodiments also provide a harvester, including a harvester transmission system as described in any of the above embodiments.

[0015] The harvester transmission system and harvester provided by this utility model are characterized by their integrity and modularity. By setting up a fan drive shaft, the load on the original lifting chain rake shaft is reduced, avoiding damage to the lifting chain rake shaft and affecting the efficiency of ear conveying. In the fan unit, the transmission connection of the first fan and the second fan is located on the outside of the harvester, which is convenient for disassembly and can significantly reduce disassembly and assembly time, thereby improving the harvester's operating efficiency. At the same time, the modularization of the harvester's overall transmission facilitates inspection and maintenance, and can significantly improve the robustness of the harvester's transmission. Attached Figure Description

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0017] Figure 1 A harvester provided for an embodiment of this utility model.

[0018] Figure 2 A schematic diagram of a harvester part structure provided for Embodiment 1 of this utility model Figure 1 .

[0019] Figure 3 A schematic diagram of a harvester part structure provided for Embodiment 1 of this utility model Figure 2 .

[0020] Figure 4 A schematic diagram of a harvester transmission system provided for Embodiment 1 of this utility model Figure 1 .

[0021] Figure 5 A schematic diagram of a harvester transmission system provided for Embodiment 1 of this utility model Figure 2 .

[0022] Figure 6 A schematic diagram of a harvester part structure provided for embodiment 2 of this utility model Figure 1 .

[0023] Figure 7 A schematic diagram of a harvester part structure provided for embodiment 2 of this utility model Figure 2 .

[0024] Figure 8 This is a schematic diagram of a harvester transmission system provided for Embodiment 2 of this utility model.

[0025] Explanation of icon numbers: 100-Harvester transmission system; 1-Engine; 101-First pulley; 102-Main drive shaft; 103-Second pulley; 104-Header transmission assembly; 105-First sprocket; 106-First gearbox; 107-Second sprocket; 108-Third sprocket; 109-Fourth sprocket; 110-Fifth sprocket; 111-Sixth sprocket; 112-Seventh sprocket; 113-Eighth sprocket; 114-Ninth sprocket; 115-Wind fan drive shaft; 116- 3rd pulley; 2-Peeling device; 21-Bract chopping device; 211-Peeling and chopping shaft; 3-Lifting device; 31-Lifting device body; 311-Transition shaft; 312-Lifting chain rake shaft; 32-Fan unit; 32a-First fan; 321-First fan shaft; 32b-Second fan; 322-Second fan shaft; 32c-Third fan; 323-Third fan shaft; 324-Second gearbox; 331-Upper secondary stem pulling roller; 332-Lower secondary stem pulling roller. Detailed Implementation

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0028] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0029] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0032] See Figure 1 A corn harvester generally includes a header, a lifting device 3, a hulling device 2, and functional components such as a grain bin and a corn ear box. This embodiment provides a harvester transmission system, including an engine 1 for outputting power. A first pulley 101 is connected to the engine 1 via a belt for power output. See also Figures 2-4The harvester's transmission system includes a main drive shaft 102, which runs along the width of the harvester, distributing power from the engine 1 to both sides of the harvester. A first pulley 101 is located on one side of the drive shaft and rotates synchronously with it, transmitting power from the engine 1 to the drive shaft. A second pulley 103 is located on the other side of the drive shaft and rotates synchronously with it. The header transmission assembly 104 is connected to the second pulley 103, providing transmission power to the header. A first sprocket 105 is also mounted on the drive shaft, located near the second pulley 103, and is used to transmit power to the peeling device 2 and the lifting device 3. A second sprocket 107 is connected to the first sprocket 105 via a chain drive and is located on one side of the first gearbox 106, transmitting power to the first gearbox 106. The first gearbox 106 then transmits power to the peeling device 2, driving it to peel the ears of fruit. The third sprocket 108 is located on the opposite side of the second sprocket 107 on the first gearbox 106, and the third sprocket 108 rotates synchronously with the first gearbox 106 to achieve power transmission. The fourth sprocket 109 is connected to the third sprocket 108 through chain drive, driving the husk chopping device 21 to work. The husk chopping device 21 is located inside the peeling device 2. After peeling, the husks are chopped and discharged. The fifth sprocket 110 is connected to the fourth sprocket 109 through chain drive, and the fifth sprocket 110 transfers the transmitted power. The sixth sprocket 111 is connected to the fifth sprocket 110 through chain drive. The fan drive shaft 115 is horizontally arranged with the main drive shaft 102, and the sixth sprocket 111 is located on one side of the fan drive shaft 115 and rotates synchronously with the fan drive shaft 115. The fan unit 32 includes a first fan 32a and a second fan 32b. In an optional embodiment, with the forward direction of the harvester as the front, the first fan 32a and the second fan 32b are arranged sequentially along the forward direction of the harvester. The elevator device includes an elevator body 31. The first fan 32a and the second fan 32b are both arranged above the elevator body 31. The fan drive shaft 115 is provided with a third pulley 116 on the other side of the position where the sixth sprocket 111 is located. The third pulley 116 is connected to the first fan 32a and the second fan 32b respectively by belts. The belt connecting the first fan 32a and the third pulley 116 is arranged outside the belt connecting the second fan 32b and the third pulley 116, which drives the first fan 32a and the second fan 32b to rotate, so as to achieve the removal of impurities from the ears. Optionally, the projections of the first fan shaft 321 and the second fan shaft 322 on the horizontal plane are both perpendicular to the fan drive shaft 115. When the header is changed from a plate header to a roller header, the first fan 32a and the belt between it and the third pulley 116 can be directly removed. This type of fan unit 32 has a simple transmission structure, high removal efficiency, and facilitates the harvester to improve its operating efficiency and transfer speed.Since the first fan 32a and the second fan 32b rotate synchronously directly through the third pulley 116, it is only necessary to disconnect the transmission connection between the second fan 32b and the third pulley 116. There is no need to make extensive changes to the transmission structure of the peeling device 2 and the lifting device 3. The overall integrity of the harvester's transmission structure is good and its application range is wide.

[0033] In a preferred embodiment, the fan unit 32 is further provided with a third fan 32c, wherein the third fan 32c is disposed on the top of the elevator body 31, and the projection of the third fan shaft 323 of the third fan 32c on the horizontal plane is parallel to the fan drive shaft 115. The fifth sprocket 110 and the seventh sprocket 112 are connected by chain drive, and the eighth sprocket 113 and the ninth sprocket 114 are connected by chain drive. The ninth sprocket 114 drives the third fan 32c to rotate and remove impurities. Specifically, the lifting device 3 also includes an upper secondary stalk pulling roller 331 and a lower secondary stalk pulling roller 332. The upper secondary stalk pulling roller 331 and the lower secondary stalk pulling roller 332 are arranged between the third fan 32c and the second fan 32b of the lifting device 3. The roller shafts of the upper secondary stalk pulling roller 331 and the lower secondary stalk pulling roller 332 are arranged parallel to the shaft 323 of the third fan and are located inside the lifting device body 31. The lower secondary stalk pulling roller 332 is a fixed roller. The upper secondary stalk pulling roller 331 rotates synchronously with the eighth sprocket 113 to perform secondary pulling and crushing of the remaining ear stalks in the lifting device 3, and then discharge them through the third fan 32c. The fifth sprocket 110 is mounted on one side of the transition shaft 311, which is located inside the lifting device 3. The other side of the transition shaft 311 is connected and fixed to the side wall of the lifting device body 31 via a bearing, outputting the power transmitted by the peeling device 2 to the first fan 32a, the second fan 32b, the upper secondary stem-pulling roller 331, and the third fan 32c. The fourth sprocket 109 is mounted on one side of the peeling and chopping shaft 211, which is parallel to the transition shaft 311 and located on the outside of the lifting device body 31. The peeling and chopping shaft 211 is used to drive the peeling device 2 to chop the bracts. The seventh sprocket 112 is mounted on one side of the lifting chain rake shaft 312, which is located between the transition shaft 311 and the upper secondary stem-pulling roller 331, and is used to drive the lifting chain rake to rotate. By setting a transition shaft 311, damage caused by excessive load on the lifting chain rake shaft 312 during the ear lifting process is avoided, making the lifting device 3 more reliable and less prone to failure.

[0034] In a specific implementation, the first fan shaft 321 of the first fan 32a and the second fan shaft 322 of the second fan 32b rotate in the same direction. A second gearbox 324 is respectively installed on the top of the first fan 32a and the second fan 32b. One side of the second gearbox 324 is connected to the third pulley 116 by a belt, and the power is output to the first fan 32a and the second fan 32b respectively, driving the first fan shaft 321 and the second fan shaft 322 to rotate in the same direction, so as to realize the removal of impurities from the ears of fruit during the lifting process of the lifting device 3.

[0035] The harvester transmission system provided in this embodiment features high overall integrity and modular integration. The engine 1 outputs power to the main harvester working modules, such as the header transmission assembly 104, the peeling device 2, and the lifting device 3, via different transmission routes, facilitating maintenance and repair. During the disassembly and assembly process to adapt to different operating areas and different types of headers, the transmission system remains reliable and does not affect the overall transmission performance of the harvester. The harvester provided in this embodiment, when adapting to the header, has three different types of harvester lifting devices 3: one type includes only a first fan 32a; the second type includes both a first fan 32a and a second fan 32b; and the third type includes a structure comprising a first fan 32a, a second fan 32b, an upper secondary stalk pulling roller 331, a lower secondary stalk pulling roller 332, and a third fan 32c. All three lifting modes of the above-mentioned lifting devices 3 utilize a fan drive shaft 115 to distribute the load of the original lifting chain rake shaft 312 to the fan drive shaft 115, thus preventing damage to the lifting chain rake shaft 312 and affecting the efficiency of ear conveying. Simultaneously, in the fan unit 32, the transmission connection between the first fan 32a, the second fan 32b, and the third pulley 116 is located on the outside of the harvester for easy disassembly and installation, significantly reducing disassembly and assembly time and improving the harvester's operating efficiency.

[0036] It will be apparent to those skilled in the art that various modifications and variations can be made to the exemplary embodiments of the present invention without departing from the spirit and scope of the present invention. Therefore, it is intended that the present invention cover modifications and variations falling within the scope of the appended claims and their equivalents.

Claims

1. A harvester transmission system, characterized in that, include: engine; A first pulley is connected to the engine via a belt. The main drive shaft has a first pulley located on one side of it and rotates synchronously with the first pulley. The second pulley is disposed on the other side of the main drive shaft and rotates synchronously with the main drive shaft; A header drive assembly is connected to the second pulley drive assembly to provide transmission power to the header; The first sprocket is sleeved on the main drive shaft near the second pulley and provides power to the peeling device and the lifting device. The second sprocket is connected to the first sprocket via chain drive; The first gearbox is driven by the second sprocket, which in turn drives the peeling device. The third sprocket is located on the other side of the first gearbox and rotates synchronously with the first gearbox; the fourth sprocket is connected to the third sprocket via chain drive and drives the bud leaf chopping device to work. The fifth sprocket is connected to the fourth sprocket via a chain drive; the sixth sprocket is connected to the fifth sprocket via a chain. A fan drive shaft is provided, which is arranged parallel to the main drive shaft. The sixth sprocket is located on one side of the fan drive shaft and rotates synchronously with the fan drive shaft. A third pulley is located on the other side of the fan drive shaft. The fan unit is mounted on the lifting device with the forward direction of the harvester as the front. The fan unit includes a first fan and a second fan arranged sequentially along the forward direction of the harvester. The third pulley drives the first fan and the second fan to rotate simultaneously to remove impurities from the ears of grain.

2. The harvester transmission system as described in claim 1, characterized in that, The lifting device includes a lifting body, and the first fan and the second fan are sequentially arranged on the upper part of the lifting body along the forward direction of the harvester; the fan group also includes a third fan, which is arranged on the top of the lifting body.

3. A harvester transmission system as described in claim 2, characterized in that, The fifth sprocket is connected to the seventh sprocket via chain drive; the seventh sprocket is connected to the eighth sprocket via chain drive; the eighth sprocket is connected to the ninth sprocket via chain drive, driving the third fan to rotate.

4. A harvester transmission system as described in claim 3, characterized in that, The projection of the first fan shaft of the first fan and the second fan shaft of the second fan on the horizontal plane is perpendicular to the fan drive shaft; the projection of the third fan shaft of the third fan on the horizontal plane is parallel to the fan drive shaft.

5. A harvester transmission system as described in claim 4, characterized in that, The lifting device also includes an upper secondary stem-pulling roller and a lower secondary stem-pulling roller, wherein the upper secondary stem-pulling roller rotates synchronously with the eighth sprocket.

6. A harvester transmission system as described in claim 5, characterized in that, The fifth sprocket is sleeved on one side of the transition shaft, which is located inside the lifting device. The other side of the transition shaft is fixed to the side wall of the lifting device body by a bearing.

7. A harvester transmission system as described in claim 6, characterized in that, The fourth sprocket is sleeved on one side of the peeling and chopping shaft, which is arranged parallel to the transition shaft to drive the peeling device to chop the bracts.

8. A harvester transmission system as described in claim 7, characterized in that, The seventh sprocket is sleeved on one side of the lifting chain rake shaft, which is located between the transition shaft and the upper secondary pull roller, and is used to drive the lifting chain rake to rotate.

9. A harvester transmission system as described in claim 8, characterized in that, A second gearbox is installed on the top of the first fan and the second fan respectively. One side of the second gearbox is connected to the third pulley by a belt to transmit power to the shaft of the first fan and the shaft of the second fan.

10. A harvester, characterized in that, Includes a harvester transmission system as described in any one of claims 1-9.

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