Silage harvester transmission gear box

Abstract

The utility model provides a kind of silage machine header transmission gear box, including input gear box, first transfer case and second transfer case, the output end of input gear box is transmissionally connected with the input end of first transfer case, the first output end of first transfer case is transmissionally connected with the input end of second transfer case;Second output end of the first transfer case is transmissionally connected with first conveying gear box, first feeding gear box and second feeding gear box;The output end of the second transfer case is transmissionally connected with second conveying gear box, third feeding gear box and fourth feeding gear box.The utility model is adopted, power of input gear box is evenly configured by first transfer case and second transfer case, single input driving multiple output is realized, so each feeding wheel and conveying wheel of header can be driven simultaneously, and power distribution is reasonable, load balancing;A large number of transmission mechanisms are saved, and the compactness and reliability of header are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of harvester transmission systems, specifically to a transmission gearbox for a silage harvester header. Background Technology

[0002] With the advancement and development of the livestock industry, the market demands higher and higher standards for silage harvesting machinery. The 4.5m header transmission box of the silage harvester is the core transmission component of large silage harvesting machinery. Its design needs to take into account the high efficiency of large-width cutting operations, compact structure, and reliable overload protection.

[0003] Currently, headers are designed and installed with separate cutting tooth boxes and feeding tooth boxes. The cutting tooth box drives the cutter to cut the straw, while the feeding tooth box drives the feeding wheel or roller to feed the straw to the rear of the header. The power transmission from the drive unit to each cutting and feeding tooth box requires numerous transmission mechanisms, which not only occupy a lot of space and lack compactness but also result in a heavy and energy-intensive header. Utility Model Content

[0004] To solve at least one of the above technical problems, this utility model provides a transmission gearbox for the header of a silage harvester.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] This utility model provides a transmission gearbox for a silage harvester cutter, including an input gearbox, a first transfer gearbox and a second transfer gearbox distributed in the left-right direction, wherein the output end of the input gearbox is drivenly connected to the input end of the first transfer gearbox, and the first output end of the first transfer gearbox is drivenly connected to the input end of the second transfer gearbox.

[0007] The second output end of the first transfer case is connected to a first conveying gear box, a first feeding gear box and a second feeding gear box. The first conveying gear box is located on the front side of the first transfer case, the first feeding gear box is located on the side of the first conveying gear box away from the second conveying gear box, and the second feeding gear box is located on the front side of the first conveying gear box.

[0008] The output end of the second transfer case is connected to a second conveying gearbox, a third feeding gearbox, and a fourth feeding gearbox. The second conveying gearbox is located in front of the second transfer case, the third feeding gearbox is located in front of the second conveying gearbox, and the fourth feeding gearbox is located on the side of the second conveying gearbox away from the first conveying gearbox.

[0009] The beneficial effects of this utility model are:

[0010] By employing this invention, the power from the input gearbox is evenly distributed along the left-right direction of the cutting table through the first and second transfer boxes, which are distributed along the left-right direction. Power is transmitted to the first conveying gearbox, the first feeding gearbox, and the second feeding gearbox via the front output end of the first transfer box, and to the second conveying gearbox, the third feeding gearbox, and the fourth feeding gearbox via the front output end of the second transfer box. This achieves single-input drive with multiple outputs, allowing simultaneous operation of all feeding and conveying wheels of the cutting table, with reasonable power distribution and balanced load. In summary, this invention saves a significant amount of transmission mechanisms, reduces the weight and energy consumption of the cutting table, improves the compactness of the cutting table, and enhances the reliability of the cutting table operation.

[0011] Based on the above technical solution, the present invention can be further improved as follows.

[0012] Furthermore, the first transfer case includes a first housing, with a first clutch on one side of the first housing; a first main shaft and a first front shaft are rotatably connected inside the first housing, and a first hollow shaft is rotatably sleeved on the first main shaft, which is connected to the first front shaft via a bevel gear pair; one end of the first main shaft is connected to the output end of the input gearbox, and the other end of the first main shaft passes through the first clutch; the input end of the first clutch and the input end of the second transfer case are both connected to the other end of the first main shaft, and the output end of the first clutch is connected to the first hollow shaft; the first conveying gearbox, the first feeding gearbox, and the second feeding gearbox are respectively connected to the first front shaft.

[0013] It has a compact structure and good transmission reliability; through the first clutch, it can provide overload protection for the first conveying gearbox, the first feeding gearbox and the second feeding gearbox.

[0014] Furthermore, a first shaft housing is fixed to the front side of the first housing, and the first front shaft is rotatably connected to the inner wall of the first shaft housing; the first conveying gear box is fixed to the upper side of the first shaft housing, and the second feeding gear box is fixed to the front part of the first shaft housing; the input end of the first conveying gear box, the input end of the first feeding gear box, and the input end of the second feeding gear box all extend into the first shaft housing and are respectively connected to the first front shaft through bevel gear transmission.

[0015] It facilitates the protection of the first front axle and achieves closed transmission, thereby improving the stability of the first front axle and the reliability of the transmission. At the same time, the first shaft housing is used to fix the first conveying gear box and the second feeding gear box, which improves the overall positional stability and makes disassembly and assembly convenient.

[0016] Furthermore, a first extension shell is provided between the first feeding gear box and the first shaft housing, and a first extension shaft is rotatably connected inside the first extension shell; one end of the first extension shell is fixedly connected to the first feeding gear box, and the other end of the first extension shell is fixedly connected to the first shaft housing; one end of the first extension shaft is drivenly connected to the input end of the first feeding gear box, and the other end of the first extension shaft extends into the first shaft housing and is drivenly connected to the first front shaft through a bevel gear pair.

[0017] This facilitates extending the installation distance between the first feed gearbox and the first shaft housing, and achieves closed transmission between the first shaft housing and the first feed gearbox, thus improving the reliability of the transmission.

[0018] Furthermore, both the first extension shell and the first extension shaft are multi-segment structures. Each segment of the first extension shell is connected to a segment of the first extension shaft via bearings. Each pair of adjacent segments of the first extension shaft are connected by a coupling, and each pair of adjacent segments of the first extension shell are detachably connected.

[0019] It allows for flexible setting of the installation distance between the first feed gear box and the first shaft housing, thus adapting to different specifications of cutting tables and exhibiting strong adaptability.

[0020] Furthermore, the second transfer case includes a second housing, a second clutch is provided on one side of the second housing, a second main shaft and a second front shaft are rotatably connected inside the second housing, and the second main shaft and the second front shaft are connected by a bevel gear pair; the input end of the second clutch is connected to the other end of the first main shaft, and the output end of the second clutch is connected to the second main shaft; the second conveying gear box, the third feeding gear box and the fourth feeding gear box are respectively connected to the second front shaft.

[0021] It has a compact structure and good transmission reliability; through the second clutch, it can provide overload protection for the second conveying gearbox, the third feeding gearbox and the fourth feeding gearbox.

[0022] Furthermore, a second shaft housing is fixed to the front side of the second housing, and the second front shaft is rotatably connected to the inner wall of the second shaft housing; the second conveying gear box is fixed to the upper side of the second shaft housing, and the third feeding gear box is fixed to the front part of the second shaft housing; the input end of the second conveying gear box, the input end of the third feeding gear box, and the input end of the fourth feeding gear box all extend into the second shaft housing and are respectively connected to the second front shaft through bevel gear transmission.

[0023] It facilitates the protection of the second front axle and achieves closed transmission, improving the stability of the second front axle and the reliability of the transmission; at the same time, the second shaft housing is used to fix the second conveying gear box and the third feeding gear box, improving the overall positional stability and making disassembly and assembly convenient.

[0024] Furthermore, a second extension shell is provided between the fourth feed gear box and the second shaft housing, and a second extension shaft is rotatably connected inside the second extension shell; one end of the second extension shell is fixedly connected to the fourth feed gear box, and the other end of the second extension shell is fixedly connected to the second shaft housing; one end of the second extension shaft is drivenly connected to the input end of the fourth feed gear box, and the other end of the second extension shaft extends into the second shaft housing and is drivenly connected to the second front shaft through a bevel gear pair.

[0025] This facilitates extending the installation distance of the fourth feed gearbox relative to the second shaft housing and achieves a closed transmission between the second shaft housing and the fourth feed gearbox, thus improving the reliability of the transmission.

[0026] Furthermore, both the second extension shell and the second extension shaft are multi-segment structures. Each segment of the second extension shell is connected to a segment of the second extension shaft via bearings. Each pair of adjacent segments of the second extension shaft are connected by a coupling, and each pair of adjacent segments of the second extension shell are detachably connected.

[0027] It allows for flexible setting of the installation distance of the fourth feed gear box relative to the second shaft housing, thus adapting to different specifications of cutting tables and exhibiting strong adaptability.

[0028] Furthermore, both the first and second conveying gearboxes include a conveying housing, in which a conveying input shaft and a conveying output shaft are rotatably connected, and the conveying input shaft and the conveying output shaft are connected by a gear pair; one end of the conveying input shaft extends out of the conveying housing, and one end of the conveying output shaft extends out of the conveying housing and is equipped with a conveying tower wheel clutch.

[0029] The conveyor tower wheel clutch can be used to install the tower wheel or conveyor roller of the cutting table, which facilitates overload protection and has good reliability; it also has a compact structure, is easy to install, and has good transmission reliability.

[0030] Furthermore, the first feeding gearbox, the second feeding gearbox, the third feeding gearbox, and the fourth feeding gearbox each include:

[0031] The feed section housing contains a feed section input shaft and a feed section output shaft rotatably connected within it. A first feed section gear is fixedly mounted on the feed section input shaft, and a feed section tool holder is rotatably mounted on the feed section output shaft. The feed section tool holder meshes with the first feed section gear, and a portion of the feed section tool holder extends out of the feed section housing. A second feed section gear is fixedly mounted on the feed section output shaft, and the second feed section gear meshes with the feed section input shaft. One end of the feed section output shaft extends out of the feed section housing and is fitted with a feed section pulley clutch.

[0032] The feed section tower wheel clutch can be used to install the tower wheel or feed roller of the header, which facilitates overload protection and has good reliability; the feed section cutter holder can be used to install the cutter. Through the first gear and the second gear of the feed section, the feed section cutter holder and the feed section output shaft can rotate at different speeds, thereby achieving efficient cutting of straw and improving harvesting efficiency.

[0033] Furthermore, the input gearbox includes an input housing, within which a first gear shaft and a second gear shaft are rotatably connected. Two drive gears are fixedly mounted on the first gear shaft, and two driven gears are rotatably mounted on the second gear shaft. The two drive gears and the two driven gears correspond one-to-one and mesh with each other, and a meshing device is provided between the two driven gears. The second gear shaft is connected to the input end of the first transfer case via a bevel gear transmission.

[0034] The first gear shaft can be used to connect to drive equipment such as engines. It performs speed change transmission through the drive gear, driven gear and meshing device. The speed change operation is convenient and it is easy to control the operating speed of the cutting table. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of this utility model.

[0036] Figure 2 This is a cross-sectional view of the present invention.

[0037] Figure 3 This is a schematic diagram of the first transfer case.

[0038] Figure 4 This is a schematic diagram of the second transfer case.

[0039] Figure 5 This is a schematic diagram of the conveyor gearbox.

[0040] Figure 6 This is a schematic diagram of the feeding gearbox.

[0041] In the accompanying drawings, the technical features represented by each reference numeral are as follows:

[0042] 1-Input gearbox; 11-Input housing; 12-First gear shaft; 13-Second gear shaft; 14-Meshing mechanism;

[0043] 2-First transfer case; 20-First clutch; 21-First housing; 22-First main shaft; 23-First hollow shaft; 24-First front axle; 25-First shaft housing; 26-First extension housing; 27-First extension shaft;

[0044] 3-Second transfer case; 30-Second clutch; 31-Second housing; 32-Second main shaft; 33-Second front axle; 34-Second shaft housing; 35-Second extension housing; 36-Second extension shaft;

[0045] 4-First conveyor gearbox; 5-Second conveyor gearbox;

[0046] 41-Conveying unit housing; 42-Conveying unit input shaft; 43-Conveying unit output shaft; 44-Conveying unit tower wheel clutch;

[0047] 6-First feeding gearbox; 7-Second feeding gearbox; 8-Third feeding gearbox; 9-Fourth feeding gearbox;

[0048] 61-Feed section housing; 62-Feed section input shaft; 63-Feed section output shaft; 64-Feed section first gear; 65-Feed section tool holder; 66-Feed section second gear; 67-Feed section pulley clutch. Detailed Implementation

[0049] The principles and features of this utility model are described below. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0050] This utility model refers to Figure 1-6 .

[0051] This utility model provides a transmission gearbox for a silage harvester cutter, including an input gearbox 1, a first transfer gearbox 2 and a second transfer gearbox 3 distributed in the left-right direction. The output end of the input gearbox 1 is connected to the input end of the first transfer gearbox 2, and the first output end of the first transfer gearbox 2 is connected to the input end of the second transfer gearbox 3.

[0052] The second output end of the first transfer case 2 is connected to the first conveying gear box 4, the first feeding gear box 6, and the second feeding gear box 7. The first conveying gear box 4 is located in front of the first transfer case 2, the first feeding gear box 6 is located on the side of the first conveying gear box 4 away from the second conveying gear box 5, and the second feeding gear box 7 is located in front of the first conveying gear box 4.

[0053] The output end of the second transfer case 3 is connected to the second conveying gear box 5, the third feeding gear box 8 and the fourth feeding gear box 9. The second conveying gear box 5 is located in front of the second transfer case 3, the third feeding gear box 8 is located in front of the second conveying gear box 5, and the fourth feeding gear box 9 is located on the side of the second conveying gear box 5 away from the first conveying gear box 4.

[0054] principle:

[0055] During installation, the input gearbox 1, the first transfer gearbox 2, and the second transfer gearbox 3 are located at the rear of the header. The input end of the input gearbox 1 is connected to the drive equipment such as the harvester's engine. The first conveyor gearbox 4 and the second conveyor gearbox 5 are located in the middle of the header. The output shafts of the first conveyor gearbox 4 and the second conveyor gearbox 5 both face upward and are connected to the conveyor wheel of the header. The conveyor wheel can be a tower wheel structure or a cylindrical structure, which is existing technology. The first feed gearbox 6 and the fourth feed gearbox 9 are located on the left and right sides of the front of the header. The second feed gearbox 7 and the third feed gearbox 8 are located in the middle of the front of the header. The output shafts of the first feed gearbox 6, the second feed gearbox 7, the third feed gearbox 8, and the fourth feed gearbox 9 all face upward and are connected to the feed wheel of the header. The feed wheel can be a reel sprocket structure, a tower wheel structure, or a cylindrical structure, which is existing technology.

[0056] During operation, the first transfer case 2 and the second transfer case 3 distribute the power from the input gearbox 1 to each conveying gearbox and each feeding gearbox, thereby driving the conveying wheels and feeding wheels of the header to work. This achieves single-input drive with multiple outputs and reasonable power distribution. When the header is working, the four feeding wheels at the front of the header work in pairs to convey crop straw into the header. At the same time, an additional cutting mechanism can be installed under the feeding wheels to cut the straw. The two conveying wheels in the middle of the header work in pairs to connect with the four feeding wheels, feeding straw from the four feeding wheels into the inlet at the rear of the header between the two conveying wheels.

[0057] By employing this invention, the power from the input gearbox 1 is evenly distributed along the left-right direction by using the first transfer box 2 and the second transfer box 3, which are distributed along the left-right direction. The power is transmitted to the first conveying gearbox 4, the first feeding gearbox 6, and the second feeding gearbox 7 through the front output end of the first transfer box 2, and to the second conveying gearbox 5, the third feeding gearbox 8, and the fourth feeding gearbox 9 through the front output end of the second transfer box 3. This achieves single-input drive with multiple outputs, thereby simultaneously driving the various feeding wheels and conveying wheels of the cutter table. The power distribution is reasonable and the load is balanced. In summary, this invention saves a lot of transmission mechanisms, reduces the weight and energy consumption of the cutter table, improves the compactness of the cutter table, and enhances the reliability of the cutter table operation.

[0058] Furthermore, such as Figure 3As shown: The first transfer case 2 includes a first housing 21, and a first clutch 20 is provided on one side of the first housing 21; a first main shaft 22 and a first front shaft 24 are rotatably connected inside the first housing 21, and a first hollow shaft 23 is rotatably sleeved on the first main shaft 22. The first hollow shaft 23 and the first front shaft 24 are connected by a bevel gear pair; one end of the first main shaft 22 is connected to the output end of the input gear box 1, and the other end of the first main shaft 22 passes through the first clutch 20. The input end of the first clutch 20 and the input end of the second transfer case 3 are both connected to the other end of the first main shaft 22. The output end of the first clutch 20 is connected to the first hollow shaft 23; the first conveying gear box 4, the first feeding gear box 6, and the second feeding gear box 7 are respectively connected to the first front shaft 24.

[0059] Preferably, the first main shaft 22 and the first front shaft 24 are connected to the first housing 21 via bearings; the first hollow shaft 23 is connected to the first main shaft 22 via bearings; one end of the first main shaft 22 is connected to the output end of the input gearbox 1 via a coupling; the input end of the first clutch 20 is its central shaft, which can be sleeved on the other end of the first main shaft 22 and connected via spline transmission; the output end of the first clutch 20 is fixedly connected to the first hollow shaft 23. Furthermore, one end of the first main shaft 22 is the input end of the first transfer case 2, the other end of the first main shaft 22 is the first output end of the first transfer case 2, and the first front shaft 24 is the second output end of the first transfer case 2.

[0060] It has a compact structure and good transmission reliability; through the first clutch 20, it can provide overload protection for the first conveying gear box 4, the first feeding gear box 6 and the second feeding gear box 7.

[0061] Furthermore, a first shaft housing 25 is fixed to the front side of the first housing 21, and the first front shaft 24 is rotatably connected to the inner wall of the first shaft housing 25; the first conveying gear box 4 is fixed to the upper side of the first shaft housing 25, and the second feeding gear box 7 is fixed to the front part of the first shaft housing 25; the input end of the first conveying gear box 4, the input end of the first feeding gear box 6, and the input end of the second feeding gear box 7 all extend into the first shaft housing 25, and are respectively connected to the first front shaft 24 through bevel gear transmission.

[0062] It facilitates the protection of the first front axle 24 and realizes closed transmission, thereby improving the stability of the first front axle 24 and the reliability of the transmission; at the same time, the first conveying gear box 4 and the second feeding gear box 7 are fixed by the first shaft housing 25, which improves the overall positional stability and makes disassembly and assembly convenient.

[0063] Furthermore, such as Figure 2As shown: A first extension shell 26 is also provided between the first feeding gear box 6 and the first shaft housing 25. A first extension shaft 27 is rotatably connected inside the first extension shell 26. One end of the first extension shell 26 is fixedly connected to the first feeding gear box 6, and the other end of the first extension shell 26 is fixedly connected to the first shaft housing 25. One end of the first extension shaft 27 is drivenly connected to the input end of the first feeding gear box 6, and the other end of the first extension shaft 27 extends into the first shaft housing 25 and is drivenly connected to the first front shaft 24 through a bevel gear pair.

[0064] Preferably, the first extension shaft 27 and the first extension housing 26 are rotatably connected by bearings. One end of the first extension shaft 27 is connected to the input end of the first feed gearbox 6 via a coupling.

[0065] This facilitates extending the installation distance of the first feed gearbox 6 relative to the first shaft housing 25, and achieves closed transmission between the first shaft housing 25 and the first feed gearbox 6, thereby improving the reliability of the transmission.

[0066] Furthermore, both the first extension shell 26 and the first extension shaft 27 are multi-segment structures. Each segment of the first extension shell 26 is connected to a segment of the first extension shaft 27 via bearings. Each pair of adjacent segments of the first extension shaft 27 are connected by a coupling, and each pair of adjacent segments of the first extension shell 26 are detachably connected.

[0067] Preferably, each pair of adjacent first extension shells 26 are nested together and can be connected by bolts.

[0068] It allows for flexible setting of the installation distance between the first feed gear box 6 and the first shaft housing 25, thus adapting to different specifications of cutting tables and exhibiting strong adaptability.

[0069] Furthermore, such as Figure 4 As shown: The second transfer case 3 includes a second housing 31, a second clutch 30 is provided on one side of the second housing 31, a second main shaft 32 and a second front shaft 33 are rotatably connected inside the second housing 31, the second main shaft 32 and the second front shaft 33 are connected by a bevel gear pair; the input end of the second clutch 30 is connected to the other end of the first main shaft 22, and the output end of the second clutch 30 is connected to the second main shaft 32; the second conveying gear box 5, the third feeding gear box 8 and the fourth feeding gear box 9 are respectively connected to the second front shaft 33.

[0070] Preferably, both the second main shaft 32 and the second front shaft 33 are connected to the second housing 31 via bearings; the input end of the second clutch 30 is connected to the other end of the first main shaft 22 via a spline sleeve or coupling. Furthermore, the second clutch 30 or the second main shaft 32 is the input end of the second transfer case 3; the second front shaft 33 is the output end of the second transfer case 3.

[0071] It has a compact structure and good transmission reliability; through the second clutch 30, it can provide overload protection for the second conveying gearbox 5, the third feeding gearbox 8 and the fourth feeding gearbox 9.

[0072] Furthermore, a second shaft housing 34 is fixed to the front side of the second housing 31, and the second front shaft 33 is rotatably connected to the inner wall of the second shaft housing 34; the second conveying gear box 5 is fixed to the upper side of the second shaft housing 34, and the third feeding gear box 8 is fixed to the front part of the second shaft housing 34; the input end of the second conveying gear box 5, the input end of the third feeding gear box 8, and the input end of the fourth feeding gear box 9 all extend into the second shaft housing 34, and are respectively connected to the second front shaft 33 through bevel gear transmission.

[0073] It facilitates the protection of the second front axle 33 and realizes closed transmission, thereby improving the stability of the second front axle 33 and the reliability of the transmission; at the same time, the second shaft housing 34 is used to fix the second conveying gear box 5 and the third feeding gear box 8, which improves the overall positional stability and makes disassembly and assembly convenient.

[0074] Furthermore, such as Figure 2 As shown: A second extension shell 35 is also provided between the fourth feed gear box 9 and the second shaft housing 34. A second extension shaft 36 is rotatably connected inside the second extension shell 35. One end of the second extension shell 35 is fixedly connected to the fourth feed gear box 9, and the other end of the second extension shell 35 is fixedly connected to the second shaft housing 34. One end of the second extension shaft 36 is drivenly connected to the input end of the fourth feed gear box 9, and the other end of the second extension shaft 36 extends into the second shaft housing 34 and is drivenly connected to the second front shaft 33 through a bevel gear pair.

[0075] Preferably, the second extension shaft 36 and the second extension housing 35 are rotatably connected by bearings. One end of the second extension shaft 36 is connected to the input end of the fourth feed gearbox 9 via a coupling.

[0076] This facilitates extending the installation distance of the fourth feed gearbox 9 relative to the second shaft housing 34, and achieves closed transmission between the second shaft housing 34 and the fourth feed gearbox 9, thereby improving the reliability of the transmission.

[0077] Furthermore, both the second extension shell 35 and the second extension shaft 36 are multi-segment structures. Each segment of the second extension shell 35 is connected to a segment of the second extension shaft 36 via bearings. Each pair of adjacent segments of the second extension shaft 36 are connected by a coupling, and each pair of adjacent segments of the second extension shell 35 are detachably connected.

[0078] Preferably, each pair of adjacent second extension shells 35 are nested together and can be connected by bolts.

[0079] The installation distance of the fourth feed gear box 9 relative to the second shaft housing 34 can be flexibly set, thus adapting to different specifications of cutting tables and having strong adaptability.

[0080] Furthermore, such as Figure 5 As shown: The first conveying gearbox 4 and the second conveying gearbox 5 both include a conveying housing 41. A conveying input shaft 42 and a conveying output shaft 43 are rotatably connected inside the conveying housing 41. The conveying input shaft 42 and the conveying output shaft 43 are connected by a gear pair. One end of the conveying input shaft 42 extends out of the conveying housing 41, and one end of the conveying output shaft 43 extends out of the conveying housing 41 and is equipped with a conveying tower wheel clutch 44.

[0081] Note: One end of the input shaft 42 of the first conveyor gearbox 4 extends out of the conveyor housing 41 and is drivenly connected to the second output end of the first transfer case 2; one end of the input shaft 42 of the second conveyor gearbox 5 extends out of the conveyor housing 41 and is drivenly connected to the output end of the second transfer case 3. Furthermore, the extended conveyor housing 41 of the first conveyor gearbox 4 is fixed to the first shaft housing 25; the extended conveyor housing 41 of the second conveyor gearbox 5 is fixed to the second shaft housing 34.

[0082] The conveyor tower wheel clutch 44 can be used to install the tower wheel or conveyor roller of the cutting table, which facilitates overload protection and has good reliability; it also has a compact structure, is easy to install, and has good transmission reliability.

[0083] Furthermore, such as Figure 6 As shown: the first feeding gearbox 6, the second feeding gearbox 7, the third feeding gearbox 8, and the fourth feeding gearbox 9 each include:

[0084] The feed section housing 61 contains a feed section input shaft 62 and a feed section output shaft 63 rotatably connected within it. A first feed section gear 64 is fixedly mounted on the feed section input shaft 62, and a feed section tool holder 65 is rotatably mounted on the feed section output shaft 63. The feed section tool holder 65 meshes with the first feed section gear 64, and a portion of the feed section tool holder 65 extends out of the feed section housing 61. A second feed section gear 66 is fixedly mounted on the feed section output shaft 63, and the second feed section gear 66 meshes with the feed section input shaft 62. One end of the feed section output shaft 63 extends out of the feed section housing 61 and is fitted with a feed section pulley clutch 67.

[0085] Preferably, the input shaft 62 and the output shaft 63 of the feeding section are connected to the housing 61 of the feeding section via bearings. The lower end of the input shaft 62 of the feeding section is the input end of the first feeding gear box 6, the second feeding gear box 7, the third feeding gear box 8, and the fourth feeding gear box 9. Specifically: the input end of the first feeding gear box 6 is connected to the first extension shaft 27 via a bevel gear pair; the input end of the second feeding gear box 7 is connected to the first front shaft 24 via a bevel gear pair; the input end of the third feeding gear box 8 is connected to the second front shaft via a bevel gear pair; and the input end of the fourth feeding gear box 9 is connected to the second extension shaft 36 via a bevel gear pair.

[0086] The feed section tower wheel clutch 67 can be used to install the tower wheel or feed roller of the header, which facilitates overload protection and has good reliability; the feed section cutter holder 65 can be used to install the cutter. Through the first gear 64 and the second gear 66 of the feed section, the feed section cutter holder 65 and the feed section output shaft 63 can rotate at different speeds, thereby achieving efficient cutting of straw and improving harvesting efficiency.

[0087] Furthermore, such as Figure 3 As shown: The input gearbox 1 includes an input housing 11, in which a first gear shaft 12 and a second gear shaft 13 are rotatably connected. Two drive gears are fixedly mounted on the first gear shaft 12, and two driven gears are rotatably mounted on the second gear shaft 13. The two drive gears and the two driven gears correspond to each other and mesh. A meshing device 14 is provided between the two driven gears. The second gear shaft 13 is connected to the input end of the first transfer case 2 through a bevel gear transmission.

[0088] Preferably, both the first gear shaft 12 and the second gear shaft 13 are rotatably connected to the input housing 11 via bearings.

[0089] The first gear shaft 12 can be used to connect to drive equipment such as engines, and performs speed change transmission through the gear change drive wheel, gear change driven wheel and meshing device 14. The speed change operation is convenient and it is easy to control the operating speed of the cutting table.

[0090] In the description of this utility model, it should be understood that if descriptive terms indicating orientation, direction, or positional relationship appear, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc., the orientation or positional relationship indicated in this specification is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of understanding this utility model and simplifying the description, and does not indicate or imply that the part, element, or whole referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0091] Furthermore, if sequential descriptive terms such as "first," "second," etc., appear, their purpose in this specification is for ease of understanding or simplification. For example, to distinguish multiple technical features of the same type or function, which must be mentioned separately, this specification may use prefixes or suffixes to differentiate them. Therefore, they should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first," "second," etc., may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0092] In this utility model, if descriptive terms describing structural relationships are used, such as "installation," "connection," "joining," and "fixing," they should be interpreted broadly unless otherwise explicitly specified and limited. For example, "installation," "connection," and "joining" can refer to a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. "Fixing" can refer to an integral fixation or a detachable fixation using fasteners; it can be a direct fixation or a fixation through an intermediate medium. For those skilled in the art, the specific meaning of the above descriptive terms in this utility model can be understood based on the specific circumstances, the context, and the coherence of the preceding and following text.

[0093] In this utility model, if descriptive terms containing subordinate or connecting meanings appear, such as "above" or "below" the second feature, they should not be interpreted restrictively unless otherwise explicitly specified and limited. For example, "above" or "below" can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. For those skilled in the art, the specific meaning of the above descriptive terms in this utility model can be understood according to the specific circumstances, the context, and the coherence of the preceding and following text.

[0094] Furthermore, "above," "on top of," and "above" the first feature in relation to the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0095] 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. The illustrative expressions of the above terms in this specification 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, examples, and features described in this specification, and such combinations or integrations should all fall within the scope of the present invention.

[0096] 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. Variations, modifications, substitutions, and modifications made by those skilled in the art to the above embodiments within the scope of information available through public channels and in conjunction with the technical teachings given in this application are still covered within the protection scope of this application.

Claims

1. A transmission gearbox for a silage harvester header, characterized in that: It includes an input gearbox (1), a first transfer case (2) and a second transfer case (3) distributed in the left and right directions. The output end of the input gearbox (1) is connected to the input end of the first transfer case (2), and the first output end of the first transfer case (2) is connected to the input end of the second transfer case (3). The second output end of the first transfer case (2) is connected to the first conveying gear box (4), the first feeding gear box (6), and the second feeding gear box (7). The first conveying gear box (4) is located in front of the first transfer case (2), the first feeding gear box (6) is located on the side of the first conveying gear box (4) away from the second conveying gear box (5), and the second feeding gear box (7) is located in front of the first conveying gear box (4). The output end of the second transfer case (3) is connected to the second conveying gear box (5), the third feeding gear box (8) and the fourth feeding gear box (9). The second conveying gear box (5) is located in front of the second transfer case (3), the third feeding gear box (8) is located in front of the second conveying gear box (5), and the fourth feeding gear box (9) is located on the side of the second conveying gear box (5) away from the first conveying gear box (4).

2. The transmission gearbox for the silage harvester cutter according to claim 1, characterized in that: The first transfer case (2) includes a first housing (21), and a first clutch (20) is provided on one side of the first housing (21). A first main shaft (22) and a first front shaft (24) are rotatably connected inside the first housing (21). A first hollow shaft (23) is rotatably sleeved on the first main shaft (22). The first hollow shaft (23) and the first front shaft (24) are connected by a bevel gear pair. One end of the first main shaft (22) is connected to the output end of the input gearbox (1). The other end of the first main shaft (22) passes through the first clutch (20). The input end of the first clutch (20) and the input end of the second transfer case (3) are both connected to the other end of the first main shaft (22). The output end of the first clutch (20) is connected to the first hollow shaft (23). The first conveying gearbox (4), the first feeding gearbox (6) and the second feeding gearbox (7) are respectively connected to the first front shaft (24).

3. The transmission gearbox for the silage harvester header according to claim 2, characterized in that: The front side of the first housing (21) is also fixed with a first shaft housing (25), and the first front shaft (24) is rotatably connected to the inner wall of the first shaft housing (25); the first conveying gear box (4) is fixed to the upper side of the first shaft housing (25), and the second feeding gear box (7) is fixed to the front of the first shaft housing (25); the input end of the first conveying gear box (4), the input end of the first feeding gear box (6) and the input end of the second feeding gear box (7) all extend into the first shaft housing (25) and are respectively connected to the first front shaft (24) through bevel gear transmission.

4. The transmission gearbox for the silage harvester header according to claim 3, characterized in that: A first extension shell (26) is provided between the first feed gear box (6) and the first shaft housing (25), and a first extension shaft (27) is rotatably connected inside the first extension shell (26); one end of the first extension shell (26) is fixedly connected to the first feed gear box (6), and the other end of the first extension shell (26) is fixedly connected to the first shaft housing (25); one end of the first extension shaft (27) is drivenly connected to the input end of the first feed gear box (6), and the other end of the first extension shaft (27) extends into the first shaft housing (25) and is drivenly connected to the first front shaft (24) through a bevel gear pair.

5. The transmission gearbox for the silage harvester cutter according to claim 4, characterized in that: Both the first extension shell (26) and the first extension shaft (27) are multi-segment structures. Each segment of the first extension shell (26) is connected to a segment of the first extension shaft (27) through a bearing. Each pair of adjacent segments of the first extension shaft (27) are connected by a coupling. Each pair of adjacent segments of the first extension shell (26) are detachably connected.

6. The transmission gearbox for the silage harvester header according to claim 2, characterized in that: The second transfer case (3) includes a second housing (31), a second clutch (30) is provided on one side of the second housing (31), a second main shaft (32) and a second front shaft (33) are rotatably connected inside the second housing (31), the second main shaft (32) and the second front shaft (33) are connected by bevel gear transmission; the input end of the second clutch (30) is connected to the other end of the first main shaft (22), and the output end of the second clutch (30) is connected to the second main shaft (32); the second conveying gear box (5), the third feeding gear box (8) and the fourth feeding gear box (9) are respectively connected to the second front shaft (33).

7. The transmission gearbox for the silage harvester header according to claim 6, characterized in that: The second housing (31) is also fixed to the front side of the second shaft housing (34), and the second front shaft (33) is rotatably connected to the inner wall of the second shaft housing (34); the second conveying gear box (5) is fixed to the upper side of the second shaft housing (34), and the third feeding gear box (8) is fixed to the front of the second shaft housing (34); the input end of the second conveying gear box (5), the input end of the third feeding gear box (8) and the input end of the fourth feeding gear box (9) all extend into the second shaft housing (34) and are respectively connected to the second front shaft (33) through bevel gear transmission.

8. The transmission gearbox for the silage harvester header according to claim 7, characterized in that: A second extension shell (35) is also provided between the fourth feed gear box (9) and the second shaft housing (34). A second extension shaft (36) is rotatably connected inside the second extension shell (35). One end of the second extension shell (35) is fixedly connected to the fourth feed gear box (9), and the other end of the second extension shell (35) is fixedly connected to the second shaft housing (34). One end of the second extension shaft (36) is drivenly connected to the input end of the fourth feed gear box (9), and the other end of the second extension shaft (36) extends into the second shaft housing (34) and is drivenly connected to the second front shaft (33) through a bevel gear pair.

9. The transmission gearbox for the silage harvester header according to claim 8, characterized in that: The second extension shell (35) and the second extension shaft (36) are both multi-segment structures. Each segment of the second extension shell (35) is connected to a segment of the second extension shaft (36) through a bearing. Each pair of adjacent segments of the second extension shaft (36) are connected by a coupling. Each pair of adjacent segments of the second extension shell (35) are detachably connected.

10. The transmission gearbox for the forage harvester header according to any one of claims 1-9, characterized in that: The first conveying gearbox (4) and the second conveying gearbox (5) both include a conveying housing (41). The conveying housing (41) is rotatably connected to the conveying input shaft (42) and the conveying output shaft (43). The conveying input shaft (42) and the conveying output shaft (43) are connected by a gear pair. One end of the conveying input shaft (42) extends out of the conveying housing (41), and one end of the conveying output shaft (43) extends out of the conveying housing (41) and is equipped with a conveying tower wheel clutch (44).

11. The transmission gearbox for the forage harvester header according to any one of claims 1-9, characterized in that: The first feeding gearbox (6), the second feeding gearbox (7), the third feeding gearbox (8), and the fourth feeding gearbox (9) all include: The feed section housing (61) is rotatably connected to the feed section input shaft (62) and the feed section output shaft (63). The feed section input shaft (62) is fixedly sleeved with the feed section first gear (64), and the feed section output shaft (63) is rotatably sleeved with the feed section tool holder (65). The feed section tool holder (65) meshes with the feed section first gear (64), and part of the feed section tool holder (65) extends out of the feed section housing (61). The feed section output shaft (63) is fixedly sleeved with the feed section second gear (66), and the feed section second gear (66) meshes with the feed section input shaft (62). One end of the feed section output shaft (63) extends out of the feed section housing (61) and is equipped with a feed section tower wheel clutch (67).

12. The transmission gearbox for the forage harvester header according to any one of claims 1-9, characterized in that: The input gearbox (1) includes an input housing (11), in which a first gear shaft (12) and a second gear shaft (13) are rotatably connected. Two gear drive wheels are fixedly mounted on the first gear shaft (12), and two gear driven wheels are rotatably mounted on the second gear shaft (13). The two gear drive wheels and the two gear driven wheels correspond to each other and mesh. A meshing device (14) is provided between the two gear driven wheels. The second gear shaft (13) is connected to the input end of the first transfer case (2) through a bevel gear transmission.

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