Transmission gear box of header of silage maize harvester

Abstract

The invention provides a silage maize harvester header transmission gear box which comprises an input gear box, a first transfer case and a second transfer case, the output end of the input gear box is in transmission connection with the input end of the first transfer case, and the first output end of the first transfer case is in transmission connection with the input end of the second transfer case; a second output end of the first transfer case is in transmission connection with a first conveying gear box, a first feeding gear box and a second feeding gear box; and the output end of the second transfer case is in transmission connection with a second conveying gear box, a third feeding gear box and a fourth feeding gear box. According to the invention, the power input into the gear box is uniformly configured through the first transfer case and the second transfer case, so that single-input driving multi-output is realized, each feeding wheel and each conveying wheel of the header can be simultaneously driven to work, the power distribution is reasonable, and the load is balanced; a large number of transmission mechanisms are saved, and the compactness and reliability of the header are improved.

Description

Technical Field

[0001] The invention relates to the technical field of harvester transmission systems, and in particular to a silage harvester cutting platform transmission gear box. Background Art

[0002] With the advancement of animal husbandry, the market now has higher and higher requirements for silage harvesting machinery. The 4.5m cutting table transmission box of the silage harvester is the core transmission component of the large-scale silage harvester machinery. Its design needs to take into account the efficiency of large-width cutting operations, compact structure and overload protection reliability.

[0003] Current harvesting platforms typically have separate cutting and feeding gearboxes. The cutting gearbox drives the cutter blades to sever the straw, while the feeding gearbox drives the feed wheels or rollers to feed the straw to the rear of the harvesting platform. Transmitting power from the drive unit to the cutting and feeding gearboxes requires numerous transmission mechanisms, which not only takes up a lot of space and lacks compactness, but also makes the harvesting platform heavy and energy-intensive. Summary of the Invention

[0004] In order to solve at least one of the above technical problems, the present invention provides a silage harvester cutting table transmission gear box.

[0005] The technical solution of the present invention to solve the above technical problems is as follows: The present invention provides a forage harvester header transmission gearbox, comprising an input gearbox, a first transfer case and a second transfer case distributed in the left and right directions, wherein the output end of the input gearbox is transmission-connected to the input end of the first transfer case, and the first output end of the first transfer case is transmission-connected to the input end of the second transfer case; The second output end of the first transfer case is transmission-connected to the first conveying gear box, the first feeding gear box and the 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; The output end of the second transfer case is transmission-connected to the second conveying gear box, the third feeding gear box and the fourth feeding gear box. The second conveying gear box is located on the front side of the second transfer case, the third feeding gear box is located on the front side of the second conveying gear box, and the fourth feeding gear box is located on the side of the second conveying gear box away from the first conveying gear box.

[0006] The beneficial effects of the present invention are: By adopting the present invention, the power of the input gear box is evenly distributed along the left and right directions of the cutting platform through the first transfer case and the second transfer case distributed along the left and right directions; the power is transmitted to the first conveying gear box, the first feeding gear box and the second feeding gear box through the front output end of the first transfer case, and the power is transmitted to the second conveying gear box, the third feeding gear box and the fourth feeding gear box through the front output end of the second transfer case, thereby realizing single input driving multiple outputs, thereby driving the various feeding wheels and conveying wheels of the cutting platform to work at the same time, with reasonable power distribution and balanced load; in summary, a large number of transmission mechanisms are saved, the weight and energy consumption of the cutting platform are reduced, the compactness of the cutting platform is improved, and the reliability of the cutting platform operation is high.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, the first transfer case includes a first housing, and a first clutch is provided on one side of the first housing; the first main shaft and the first front shaft are rotatably connected in the first housing, and a first hollow shaft is rotatably sleeved on the first main shaft, and the first hollow shaft and the first front shaft are transmission-connected through a bevel gear pair; one end of the first main shaft is transmission-connected to the output end of the input gear box, and the other end of the first main shaft passes through the first clutch, and the input end of the first clutch and the input end of the second transfer case are both transmission-connected to the other end of the first main shaft, and the output end of the first clutch is transmission-connected to the first hollow shaft; the first conveying gear box, the first feeding gear box and the second feeding gear box are transmission-connected to the first front shaft respectively.

[0009] The structure is compact and the transmission reliability is good; through the first clutch, overload protection can be provided for the first conveying gear box, the first feeding gear box and the second feeding gear box.

[0010] Furthermore, a first shaft housing is fixed to the front side of the first shell, 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 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 a bevel gear pair.

[0011] It is convenient to protect the first front axle and realize closed transmission, thereby improving the stability of the first front axle and the reliability of transmission; at the same time, the first conveying gear box and the second feeding gear box are fixed by the first axle housing, thereby improving the overall position stability and facilitating disassembly and assembly.

[0012] Furthermore, a first extension shell is provided between the first feed gear box and the first shaft shell, and a first extension shaft is rotatably connected in the first extension shell; one end of the first extension shell is fixedly connected to the first feed gear box, and the other end of the first extension shell is fixedly connected to the first shaft shell; one end of the first extension shaft is transmission-connected to the input end of the first feed gear box, and the other end of the first extension shaft extends into the first shaft shell and is transmission-connected to the first front shaft through a bevel gear pair.

[0013] It is convenient to extend the installation distance of the first feeding gear box relative to the first shaft housing, and realize the closed transmission between the first shaft housing and the first feeding gear box, thereby improving the reliability of the transmission.

[0014] Furthermore, the first extension shell and the first extension shaft are both multi-section structures, each section of the first extension shell is connected to a section of the first extension shaft through a bearing, each two adjacent sections of the first extension shaft are connected through a coupling, and each two adjacent sections of the first extension shell are detachably connected.

[0015] It is convenient to flexibly set the installation distance of the first feeding gear box relative to the first shaft housing, so as to adapt to cutting tables of different specifications and has strong adaptability.

[0016] 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 in the second housing, and the second main shaft and the second front shaft are transmission-connected through a bevel gear pair; the input end of the second clutch is transmission-connected to the other end of the first main shaft, and the output end of the second clutch is transmission-connected to the second main shaft; the second conveying gear box, the third feeding gear box and the fourth feeding gear box are respectively transmission-connected to the second front shaft.

[0017] The structure is compact and the transmission reliability is good; through the second clutch, it can provide overload protection for the second conveying gear box, the third feeding gear box and the fourth feeding gear box.

[0018] Furthermore, a second shaft housing is fixed to the front side of the second shell, 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 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 a bevel gear pair.

[0019] It is convenient to protect the second front axle and realize closed transmission, thereby improving the stability of the second front axle and the reliability of transmission; at the same time, the second axle housing is used to fix the second conveying gear box and the third feeding gear box, thereby improving the overall position stability and facilitating disassembly and assembly.

[0020] Furthermore, a second extension shell is provided between the fourth feed gear box and the second shaft shell, and a second extension shaft is rotatably connected in 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 shell; one end of the second extension shaft is transmission-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 shell and is transmission-connected to the second front shaft through a bevel gear pair.

[0021] It is convenient to extend the installation distance of the fourth feeding gear box relative to the second shaft housing, and realize the closed transmission between the second shaft housing and the fourth feeding gear box, thereby improving the reliability of the transmission.

[0022] Furthermore, the second extension shell and the second extension shaft are both multi-section structures, each section of the second extension shell is connected to a section of the second extension shaft through a bearing, each two adjacent sections of the second extension shaft are connected by a coupling, and each two adjacent sections of the second extension shell are detachably connected.

[0023] It is convenient to flexibly set the installation distance of the fourth feeding gear box relative to the second shaft housing, so as to adapt to cutting tables of different specifications and has strong adaptability.

[0024] Furthermore, the first conveying gear box and the second conveying gear box both include a conveying part shell, in which a conveying part input shaft and a conveying part output shaft are rotatably connected, and the conveying part input shaft and the conveying part output shaft are connected through a gear pair; one end of the conveying part input shaft extends out of the conveying part shell, and one end of the conveying part output shaft extends out of the conveying part shell and is installed with a conveying part step pulley clutch.

[0025] The conveying part pulley clutch can be used to install the pulley or conveying roller of the header, which is convenient for providing overload protection and good reliability. It also has a compact structure, easy installation and good transmission reliability.

[0026] Furthermore, the first feeding gear box, the second feeding gear box, the third feeding gear box and the fourth feeding gear box all include: The feeding part housing has a feeding part input shaft and a feeding part output shaft which are rotatably connected in the feeding part housing; a first gear of the feeding part is fixedly sleeved on the feeding part input shaft; a feed part knife seat is rotatably sleeved on the feeding part output shaft; the feeding part knife seat is meshed with the first gear of the feeding part, and the feeding part knife seat partially extends out of the feeding part housing; a second gear of the feeding part is fixedly sleeved on the feeding part output shaft, and the second gear of the feeding part is meshed with the feeding part input shaft; one end of the feeding part output shaft extends out of the feeding part housing and is installed with a feeding part step pulley clutch.

[0027] The feeding section pulley clutch can be used to install the cutting table pulley or feeding roller, which is convenient for providing overload protection and good reliability; the feeding section knife holder can be used to install the cutting knife. Through the first gear and the second gear of the feeding section, the feeding section knife holder and the feeding section output shaft can be rotated at a differential speed, thereby achieving efficient straw cutting and improving harvesting efficiency.

[0028] Furthermore, the input gearbox includes an input housing, in which a first speed-changing shaft and a second speed-changing shaft are rotatably connected, two speed-changing driving wheels are fixedly provided on the first speed-changing shaft, and two speed-changing driven wheels are rotatably provided on the second speed-changing shaft, the two speed-changing driving wheels correspond to and mesh with the two speed-changing driven wheels one by one, and a clutch is provided between the two speed-changing driven wheels; the second speed-changing shaft is transmission-connected to the input end of the first transfer case through a bevel gear pair.

[0029] The first speed-changing shaft can be used to connect driving equipment such as an engine, and speed transmission is performed through a speed-changing driving wheel, a speed-changing driven wheel and a clutch. The speed-changing operation is convenient, and the operating speed of the cutting platform is easy to control. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the present invention.

[0031] Figure 2 It is a cross-sectional view of the present invention.

[0032] Figure 3 It is a structural schematic diagram of the first transfer case.

[0033] Figure 4 It is a structural schematic diagram of the second transfer case.

[0034] Figure 5 It is a structural diagram of the conveying gear box.

[0035] Figure 6 It is a structural diagram of the feeding gear box.

[0036] In the accompanying drawings, the technical features represented by the reference numerals are as follows: 1-input gearbox; 11-input housing; 12-first speed change shaft; 13-second speed change shaft; 14-clutch; 2-first transfer case; 20-first clutch; 21-first housing; 22-first main shaft; 23-first hollow shaft; 24-first front shaft; 25-first shaft housing; 26-first extension housing; 27-first extension shaft; 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; 4-first conveying gear box; 5-second conveying gear box; 41-conveying unit housing; 42-conveying unit input shaft; 43-conveying unit output shaft; 44-conveying unit step pulley clutch; 6-first feeding gear box; 7-second feeding gear box; 8-third feeding gear box; 9-fourth feeding gear box; 61-feeding unit housing; 62-feeding unit input shaft; 63-feeding unit output shaft; 64-feeding unit first gear; 65-feeding unit knife holder; 66-feeding unit second gear; 67-feeding unit step pulley clutch. DETAILED DESCRIPTION

[0037] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0038] The present invention refers to Figure 1-6 .

[0039] The present invention provides a forage harvester header transmission gearbox, comprising an input gearbox 1, a first transfer case 2, and a second transfer case 3 distributed in the left and right directions, wherein the output end of the input gearbox 1 is transmission-connected to the input end of the first transfer case 2, and the first output end of the first transfer case 2 is transmission-connected to the input end of the second transfer case 3; The second output end of the first transfer case 2 is transmission-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 on the front side 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. The second feeding gear box 7 is located on the front side of the first conveying gear box 4. The output end of the second transfer case 3 is transmission-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 on the front side of the second transfer case 3, the third feeding gear box 8 is located on the front side 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.

[0040] principle: During installation, the input gearbox 1, first transfer case 2, and second transfer case 3 are located at the rear of the harvesting platform. The input end of the input gearbox 1 is connected to the harvester's engine or other drive equipment. The first and second conveyor gearboxes 4 and 5 are located in the middle of the harvesting platform. The output shafts of the first and second conveyor gearboxes 4 and 5 are both upward-facing and connected to the harvesting platform's conveyor wheels. The conveyor wheels can be of a tower pulley or cylindrical structure, which is conventional. The first feed gearbox 6 and fourth feed gearbox 9 are located on the left and right sides of the front of the harvesting platform. The second and third feed gearboxes 7 and 8 are located in the middle of the front of the harvesting platform. The output shafts of the first, second, third, and fourth feed gearboxes 6, 7, 8, and 9 are all upward-facing and connected to the harvesting platform's feed wheels. The feed wheels can be of a reed sprocket structure, a tower pulley structure, or a cylindrical structure, which is conventional.

[0041] During operation, the first and second transfer cases 2 and 3 transfer the power distribution from the input gearbox 1 to the various conveying and feeding gearboxes, thereby driving the conveying and feeding wheels of the header. This achieves a single input driving multiple outputs and a rational distribution of power. When the header is operating, the four feeding wheels at the front of the header work in pairs to transport crop straw into the header. Simultaneously, an additional existing cutting mechanism can be installed under the feeding wheels to sever the straw. The two conveying wheels in the middle of the header work together to connect with the four feeding wheels, transferring the straw from the four feeding wheels into the inlet at the rear of the header through the space between the two conveying wheels.

[0042] By adopting the present invention, the power of the input gear box 1 is evenly distributed along the left and right directions of the cutting platform through the first transfer case 2 and the second transfer case 3 distributed along the left and right directions; the power is transmitted to the first conveying gear box 4, the first feeding gear box 6 and the second feeding gear box 7 through the front output end of the first transfer case 2, and the power is transmitted to the second conveying gear box 5, the third feeding gear box 8 and the fourth feeding gear box 9 through the front output end of the second transfer case 3, thereby realizing single input driving multiple outputs, thereby driving the various feeding wheels and conveying wheels of the cutting platform to work at the same time, and the power distribution is reasonable and the load is balanced; in summary, a large number of transmission mechanisms are saved, the weight and energy consumption of the cutting platform are reduced, the compactness of the cutting platform is improved, and the reliability of the cutting platform operation is high.

[0043] Further, such as Figure 3 As 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 in the first housing 21, a first hollow shaft 23 is rotatably sleeved on the first main shaft 22, and the first hollow shaft 23 and the first front shaft 24 are transmission connected through a bevel gear pair; one end of the first main shaft 22 is transmission 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 transmission connected to the other end of the first main shaft 22, and the output end of the first clutch 20 is transmission 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 transmission connected to the first front shaft 24.

[0044] 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 axis, which can be sleeved on the other end of the first main shaft 22 and connected via a spline transmission; the output end of the first clutch 20 can be fixedly connected to the first hollow shaft 23. In addition, one end of the first main shaft 22 serves as the input end of the first transfer case 2, the other end of the first main shaft 22 serves as the first output end of the first transfer case 2, and the first front shaft 24 serves as the second output end of the first transfer case 2.

[0045] The structure is compact and the transmission reliability is good; through the first clutch 20, overload protection can be provided for the first conveying gear box 4, the first feeding gear box 6 and the second feeding gear box 7.

[0046] Furthermore, a first shaft housing 25 is fixed to the front side of the first shell 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 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 a bevel gear pair.

[0047] It is convenient to protect the first front axle 24 and realize closed transmission, thereby improving the stability of the first front axle 24 and the reliability of 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, thereby improving the overall position stability and facilitating disassembly and assembly.

[0048] Further, such as Figure 2 As shown: a first extension housing 26 is further provided between the first feed gear box 6 and the first shaft housing 25, and a first extension shaft 27 is rotatably connected in the first extension housing 26; one end of the first extension housing 26 is fixedly connected to the first feed gear box 6, and the other end of the first extension housing 26 is fixedly connected to the first shaft housing 25; one end of the first extension shaft 27 is transmission-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 transmission-connected to the first front shaft 24 through a bevel gear pair.

[0049] Preferably, the first extension shaft 27 is rotatably connected to the first extension shell 26 via a bearing. One end of the first extension shaft 27 is connected to the input end of the first feeding gear box 6 via a coupling.

[0050] It is convenient to extend the installation distance of the first feeding gear box 6 relative to the first shaft housing 25, and realize the closed transmission between the first shaft housing 25 and the first feeding gear box 6, thereby improving the reliability of the transmission.

[0051] Furthermore, the first extension shell 26 and the first extension shaft 27 are both multi-section structures, each section of the first extension shell 26 is connected to a section of the first extension shaft 27 through a bearing, and each adjacent two sections of the first extension shaft 27 are connected by a coupling, and each adjacent two sections of the first extension shell 26 are detachably connected.

[0052] Preferably, each two adjacent sections of the first extension shells 26 are sleeved together and can be connected by bolts at the same time.

[0053] It is convenient to flexibly set the installation distance of the first feeding gear box 6 relative to the first shaft housing 25, so as to adapt to cutting tables of different specifications, and has strong adaptability.

[0054] Further, 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 in the second housing 31, and the second main shaft 32 and the second front shaft 33 are transmission-connected via a bevel gear pair; the input end of the second clutch 30 is transmission-connected to the other end of the first main shaft 22, and the output end of the second clutch 30 is transmission-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 transmission-connected to the second front shaft 33 respectively.

[0055] Preferably, 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 coupled to the other end of the first main shaft 22 via a splined sleeve or coupling. Furthermore, the second clutch 30 or the second main shaft 32 serves as the input end of the second transfer case 3, while the second front shaft 33 serves as the output end of the second transfer case 3.

[0056] The structure is compact and the transmission reliability is good; through the second clutch 30, overload protection can be provided for the second conveying gear box 5, the third feeding gear box 8 and the fourth feeding gear box 9.

[0057] Furthermore, a second shaft housing 34 is fixed to the front side of the second shell 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 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 a bevel gear pair.

[0058] It is convenient to protect the second front axle 33 and realize closed transmission, thereby improving the stability of the second front axle 33 and the reliability of 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, thereby improving the overall position stability and facilitating disassembly and assembly.

[0059] Further, such as Figure 2 As shown: a second extension shell 35 is further provided between the fourth feed gear box 9 and the second shaft housing 34, and a second extension shaft 36 is rotatably connected in 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 transmission-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 transmission-connected to the second front shaft 33 through a bevel gear pair.

[0060] Preferably, the second extension shaft 36 is rotatably connected to the second extension shell 35 via a bearing. One end of the second extension shaft 36 is connected to the input end of the fourth feeding gear box 9 via a coupling.

[0061] This facilitates extending the installation distance of the fourth feeding gear box 9 relative to the second shaft housing 34, and realizes closed transmission between the second shaft housing 34 and the fourth feeding gear box 9, thereby improving transmission reliability.

[0062] Furthermore, the second extension shell 35 and the second extension shaft 36 are both multi-section structures, each section of the second extension shell 35 is connected to a section of the second extension shaft 36 through a bearing, and each adjacent two sections of the second extension shaft 36 are connected by a coupling, and each adjacent two sections of the second extension shell 35 are detachably connected.

[0063] Preferably, each two adjacent sections of the second extension shells 35 are sleeved together and can be connected by bolts at the same time.

[0064] It is convenient to flexibly set the installation distance of the fourth feeding gear box 9 relative to the second shaft housing 34, so as to adapt to cutting tables of different specifications, and has strong adaptability.

[0065] Further, such as Figure 5 As shown: the first conveying gear box 4 and the second conveying gear box 5 both include a conveying part shell 41, in which a conveying part input shaft 42 and a conveying part output shaft 43 are rotatably connected, and the conveying part input shaft 42 and the conveying part output shaft 43 are connected through a gear pair; one end of the conveying part input shaft 42 extends out of the conveying part shell 41, and one end of the conveying part output shaft 43 extends out of the conveying part shell 41 and is installed with a conveying part step pulley clutch 44.

[0066] Note: One end of the conveying unit input shaft 42 of the first conveying gearbox 4 extends out of the conveying unit housing 41 and is drivingly connected to the second output end of the first transfer case 2; one end of the conveying unit input shaft 42 of the second conveying gearbox 5 extends out of the conveying unit housing 41 and is drivingly connected to the output end of the second transfer case 3. In addition, the extended conveying unit housing 41 of the first conveying gearbox 4 is fixed to the first shaft housing 25; the extended conveying unit housing 41 of the second conveying gearbox 5 is fixed to the second shaft housing 34.

[0067] The conveying part step pulley clutch 44 can be used to install the step pulley or conveying roller of the header, which is convenient for providing overload protection and has good reliability. It also has a compact structure, is easy to install, and has good transmission reliability.

[0068] Further, such as Figure 6 As shown: 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 all include: The feeding part housing 61 has a feeding part input shaft 62 and a feeding part output shaft 63 rotatably connected therein. The feeding part input shaft 62 is fixedly sleeved with a feeding part first gear 64, and the feeding part output shaft 63 is rotatably sleeved with a feeding part knife holder 65, which is engaged with the feeding part first gear 64 and partially extends out of the feeding part housing 61; the feeding part output shaft 63 is fixedly sleeved with a feeding part second gear 66, which is engaged with the feeding part input shaft 62; one end of the feeding part output shaft 63 extends out of the feeding part housing 61 and is installed with a feeding part step pulley clutch 67.

[0069] Preferably, the feed unit input shaft 62 and the feed unit output shaft 63 are respectively connected to the feed unit housing 61 via bearings. The lower end of the feed unit input shaft 62 serves as the input end for the first feed gearbox 6, the second feed gearbox 7, the third feed gearbox 8, and the fourth feed gearbox 9. Specifically, the input end of the first feed gearbox 6 is coupled to the first extension shaft 27 via a bevel gear pair; the input end of the second feed gearbox 7 is coupled to the first front shaft 24 via a bevel gear pair; the input end of the third feed gearbox 8 is coupled to the second front shaft via a bevel gear pair; and the input end of the fourth feed gearbox 9 is coupled to the second extension shaft 36 via a bevel gear pair.

[0070] The feeding part pulley clutch 67 can be used to install the pulley or feeding roller of the cutting platform, which is convenient for providing overload protection and has good reliability; the feeding part knife holder 65 can be used to install the cutting knife. Through the feeding part first gear 64 and the feeding part second gear 66, the feeding part knife holder 65 and the feeding part output shaft 63 can be made to rotate differentially, thereby achieving efficient straw cutting and improving harvesting efficiency.

[0071] Further, such as Figure 3 As shown: the input gearbox 1 includes an input housing 11, in which a first speed-changing shaft 12 and a second speed-changing shaft 13 are rotatably connected. Two speed-changing driving wheels are fixedly sleeved on the first speed-changing shaft 12, and two speed-changing driven wheels are rotatably sleeved on the second speed-changing shaft 13. The two speed-changing driving wheels correspond to and mesh with the two speed-changing driven wheels one by one, and a clutch 14 is provided between the two speed-changing driven wheels; the second speed-changing shaft 13 is transmission-connected to the input end of the first transfer case 2 through a bevel gear pair.

[0072] Preferably, the first speed change shaft 12 and the second speed change shaft 13 are both rotatably connected to the input housing 11 via bearings.

[0073] The first speed-changing shaft 12 can be used to connect to a driving device such as an engine, and speed transmission is performed through a speed-changing driving wheel, a speed-changing driven wheel and a clutch 14. The speed-changing operation is convenient, and the operating speed of the cutting platform is easily controlled.

[0074] In the description of the present invention, it should be understood that if there appear descriptive terms indicating orientation, direction or positional relationship, such as: "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "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, which is only for the convenience of understanding the present invention and simplifying the description, and does not indicate or imply that the part, element or whole referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0075] In addition, if there are order description terms, such as "first", "second", etc., their purpose in this specification is to facilitate understanding or simplify the description. For example, in order to distinguish multiple technical features with the same type or function, but they have to be mentioned separately, this specification may use prefix or suffix order description terms to distinguish them. Therefore, it cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0076] In the present invention, if terms describing the relative functional relationship of structures are used, such as "install", "connect", "connect", "fix", etc., they should be understood in a broad sense unless otherwise clearly specified and limited. For example, "install", "connect", "connect", etc. can be fixed connections, detachable connections, or integrated; can be directly connected, or indirectly connected through an intermediate medium, can be internal communication between two elements, or an interactive relationship between two elements; "fix" can be fixed to form an integral body, or can be detachably fixed through fasteners; can be directly fixed, or can be fixed through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above-mentioned descriptive terms in the present invention can be understood according to the specific circumstances, the context, the coherence of the preceding and following texts, etc.

[0077] In the present invention, if descriptive terms with ancillary or connecting meaning appear, for example, a first feature being "on" or "below" a second feature, these should not be construed in a limiting sense unless otherwise expressly specified or limited. For example, "on" or "below" may refer to direct contact between the first and second features, or indirect contact between the first and second features through an intermediary. Persons of ordinary skill in the art will understand the specific meanings of these descriptive terms in the present invention based on the specific circumstances, context, and coherence of the preceding and following texts.

[0078] Furthermore, when a first feature is “above,” “above,” or “above” a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. When a first feature is “below,” “below,” or “below” a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0079] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments, examples and features of different embodiments and examples described in this specification, unless there is any contradiction, and these combinations or combinations should all fall within the scope of the present invention.

[0080] Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are illustrative and are not to be construed as limiting the present invention. Changes, modifications, substitutions and variations of the above embodiments made by persons of ordinary skill in the art within the scope of information available through public channels and in combination with the technical inspiration provided by the present application documents are still within the scope of protection of the present application.

Claims

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

2. The silage harvester header transmission gearbox according to claim 1, characterized in that: The first transfer case (2) comprises 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 in the first housing (21); a first hollow shaft (23) is rotatably sleeved on the first main shaft (22), and the first hollow shaft (23) and the first front shaft (24) are transmission-connected via a bevel gear pair; one end of the first main shaft (22) is transmission-connected to the output end of the input gearbox (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 transmission-connected to the other end of the first main shaft (22), and the output end of the first clutch (20) is transmission-connected to the first hollow shaft (23); the first conveying gearbox (4), the first feeding gearbox (6), and the second feeding gearbox (7) are transmission-connected to the first front shaft (24), respectively.

3. The silage harvester header transmission gearbox according to claim 2, characterized in that: A first shaft housing (25) is also 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 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 a bevel gear pair.

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

5. The silage harvester header transmission gearbox according to claim 4, characterized in that: The first extension shell (26) and the first extension shaft (27) are both multi-section structures. Each section of the first extension shell (26) is connected to a section of the first extension shaft (27) via a bearing. Each adjacent section of the first extension shaft (27) is connected via a coupling. Each adjacent section of the first extension shell (26) is detachably connected.

6. The silage harvester header transmission gearbox 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 in the second housing (31), and the second main shaft (32) and the second front shaft (33) are transmission-connected via a bevel gear pair; the input end of the second clutch (30) is transmission-connected to the other end of the first main shaft (22), and the output end of the second clutch (30) is transmission-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 transmission-connected to the second front shaft (33), respectively.

7. The silage harvester header transmission gearbox according to claim 6, characterized in that: A second shaft housing (34) is also 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 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 a bevel gear pair.

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

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

10. The silage harvester header transmission gearbox according to any one of claims 1 to 9, characterized in that: The first conveying gear box (4) and the second conveying gear box (5) both comprise a conveying portion housing (41), wherein a conveying portion input shaft (42) and a conveying portion output shaft (43) are rotatably connected in the conveying portion housing (41), and the conveying portion input shaft (42) and the conveying portion output shaft (43) are connected to each other through a gear pair; one end of the conveying portion input shaft (42) extends out of the conveying portion housing (41), and one end of the conveying portion output shaft (43) extends out of the conveying portion housing (41) and is provided with a conveying portion step pulley clutch (44).

11. The silage harvester header transmission gearbox according to any one of claims 1 to 9, characterized in that: 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) all include: A feeding section housing (61) is provided, wherein a feeding section input shaft (62) and a feeding section output shaft (63) are rotatably connected in the feeding section housing (61); a first feeding section gear (64) is fixedly sleeved on the feeding section input shaft (62); a feeding section knife seat (65) is rotatably sleeved on the feeding section output shaft (63); the feeding section knife seat (65) is meshed with the first feeding section gear (64), and the feeding section knife seat (65) partially extends out of the feeding section housing (61); a second feeding section gear (66) is fixedly sleeved on the feeding section output shaft (63), and the second feeding section gear (66) is meshed with the feeding section input shaft (62); one end of the feeding section output shaft (63) extends out of the feeding section housing (61) and is provided with a feeding section step pulley clutch (67).

12. The silage harvester header transmission gearbox according to any one of claims 1 to 9, characterized in that: The input gearbox (1) comprises an input housing (11), wherein a first speed change shaft (12) and a second speed change shaft (13) are rotatably connected in the input housing (11), two speed change driving wheels are fixedly provided on the first speed change shaft (12), and two speed change driven wheels are rotatably provided on the second speed change shaft (13), the two speed change driving wheels correspond to and mesh with the two speed change driven wheels, and a meshing device (14) is provided between the two speed change driven wheels; the second speed change shaft (13) is transmission-connected to the input end of the first transfer case (2) via a bevel gear pair.

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