CN220307816U - Silage harvester - Google Patents

Abstract

The utility model discloses a silage harvester, which is characterized in that a header, a feeding device, a shredding system, a grain crushing device and an accelerator assembly are sequentially arranged along the running direction of the silage harvester to form a material flow system, so that the functional integration level of the silage harvester is greatly improved, a plurality of operation links such as cutting, crushing, throwing and loading can be completed in one operation without auxiliary operation of other machines, the harvesting time is greatly shortened, and the power of each operation mechanism is directly provided by an engine without additional power source.

Description

Silage harvester

Technical Field

The utility model relates to the technical field of agricultural machinery, in particular to a silage harvester.

Background

With the increasing development of science and technology and the increasing demands of people on living standard, agricultural products are widely applied to the whole agricultural production process, the fields and varieties related to agricultural machinery are also continuously perfected, but in the actual operation process, the functions of the agricultural products related to whole process harvesting are single, the integration level is low, and a plurality of machines are required to cooperate to complete the whole harvesting operation. For example, in the prior art, corn and corn stalks are harvested by a corn combine, and then the corn stalks are shredded and the corn kernels are broken as desired by separate shredding and kernel breaking devices. Therefore, the existing silage harvester has low functional integration level, and the whole harvesting operation can be completed only by assisting the silage harvester matched with machines with different operation functions. In addition, in the transmission system of the existing silage harvester, the tensioning mechanism is inconvenient to adjust, poor in flexibility and low in reliability.

Disclosure of Invention

The utility model provides a silage harvester, which aims to solve the technical problems that the existing silage harvester is low in functional integration level and can complete the whole harvesting operation only by being assisted by machines matched with different operation functions.

According to one aspect of the utility model, there is provided a silage harvester, comprising a header, a feeding device, a cab assembly, a shredding system, a grain crushing device, an accelerator assembly, an engine, a transfer case and a frame, wherein the header, the feeding device, the shredding system, the grain crushing device and the accelerator assembly are sequentially arranged along the running direction of the silage harvester and form a material flow system, the header is used for harvesting crops, the feeding device is used for conveying the harvested crops to the shredding system for shredding, the grain crushing device is used for rolling and crushing the shredded materials, the accelerator assembly is used for conveying the crushed materials to a transport vehicle, and the feeding device, the cab assembly, the shredding system, the grain crushing device, the accelerator assembly, the engine and the transfer case are fixedly connected with the frame, and are directly and drivingly connected with the shredding system, the grain crushing device and the accelerator assembly through the transfer case and are respectively and indirectly connected with the header and the feeding device.

Further, the transfer case is in driving connection with a two-in and two-out driving case through a hydraulic system, and two output ends of the driving case are in driving connection with the cutting table and the feeding device through PTO shafts respectively.

Further, a main belt pulley is arranged on one side of the transfer case and is in driving connection with the engine, two transition wheels which are coaxially arranged are arranged in front of the main belt pulley, the main belt pulley is in driving connection with one of the transition wheels through a first belt, a fan belt pulley is arranged on one side of the accelerator assembly, a shredding belt pulley is arranged on the same side of the shredding system, and the fan belt pulley, the shredding belt pulley and the other transition wheel are in driving connection through a second belt.

Further, a fan output wheel is coaxially arranged on the other side of the accelerator assembly and the fan belt pulley, a first seed crushing wheel and a second seed crushing wheel are respectively arranged on a movable roller and a fixed roller of the seed crushing device, a fixed wheel is fixedly arranged on the frame, the fan output wheel, the first seed crushing wheel, the second seed crushing wheel and the fixed wheel are connected through a third belt in a transmission manner, and the first seed crushing wheel and the second seed crushing wheel are respectively positioned on the inner side and the outer side of the third belt.

Further, an auxiliary belt pulley is arranged on the other side of the transfer case and is in driving connection with the engine, a heat dissipation wheel is arranged in front of the auxiliary belt pulley, the auxiliary belt pulley is in driving connection with the heat dissipation wheel through a fourth belt, and the heat dissipation wheel is connected with a heat dissipation fan through a gear box.

Further, be provided with first straining device between main belt pulley and the transition wheel, first straining device is the four bar linkage of taking the take-up pulley, and the take-up pulley is placed on first belt, and four bar linkage's last connecting rod both ends are articulated with the frame, and the lower connecting rod passes through many connecting rods to be connected with the one end of spring, and the other end and the frame of spring are connected, but the upper and lower position of take-up pulley is adjusted through the compression degree of adjusting the spring to adjust the tensioning force of first belt.

Further, a second tensioning mechanism is arranged between the transition wheel and the fan belt pulley and used for adjusting the tensioning force of the second belt and increasing the wrap angle of the second belt.

Further, the second tensioning mechanism comprises a support, a second tensioning wheel, a screw and a first oil cylinder, the upper end of the support is rotatably mounted on the frame, the lower end of the support is connected with the second tensioning wheel, the second tensioning wheel is placed on the second belt, the middle of the support is connected with the driving end of the first oil cylinder through the screw, the fixed end of the first oil cylinder is mounted on the frame, the upper position and the lower position of the second tensioning wheel are adjustable through adjusting the expansion degree of the first oil cylinder, and accordingly tensioning force of the second belt is coarse-adjusted.

Further, second straining device still includes the adjusting block, adjusting block and second take-up pulley fixed connection, the fixed riser that is provided with two mutually perpendicular of lower extreme side of support, two the riser pass through the bolt with the adjusting block is connected, can finely tune the tensioning force of second belt through adjusting bolt's elasticity degree.

Further, a third tensioning mechanism is arranged between the fan output wheel and the second grain crushing wheel and comprises a second oil cylinder, a tensioning support and a third tensioning wheel, the second oil cylinder is arranged on the frame, the upper end of the tensioning support is connected with the second oil cylinder, the middle part of the tensioning support is hinged with the frame, the lower end of the tensioning support is connected with the third tensioning wheel, the tensioning support can be driven to rotate by adjusting the expansion degree of the second oil cylinder, and accordingly the front and back positions of the third tensioning wheel are adjusted, and the tensioning force of a third belt is adjusted.

The utility model has the following effects:

according to the silage harvester, the header, the feeding device, the shredding system, the grain crushing device and the accelerator assembly are sequentially arranged along the running direction of the silage harvester to form the material flow system, so that the functional integration level of the silage harvester is greatly improved, a plurality of operation links such as cutting, crushing, throwing and loading can be completed through one-time operation, auxiliary operation is not required to be carried out by matching with other machines, the harvesting time is greatly shortened, and the power of each operation mechanism is directly provided by an engine without additional power sources.

In addition to the objects, features and advantages described above, the present utility model has other objects, features and advantages. The present utility model will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 is a schematic diagram of the overall machine axis of a silage harvester according to a preferred embodiment of the utility model.

Fig. 2 is a schematic diagram of the structure of the material flow system according to the preferred embodiment of the present utility model.

FIG. 3 is a schematic view of the construction of a cab assembly according to a preferred embodiment of the utility model.

Fig. 4 is an isometric schematic drawing of a drive train of a preferred embodiment of the utility model.

Fig. 5 is a partial cross-sectional view of a transmission system of a preferred embodiment of the present utility model.

Fig. 6 is a schematic left-hand structural view of the transmission system of the preferred embodiment of the present utility model.

Fig. 7 is a schematic structural view of a second tensioning mechanism of the preferred embodiment of the present utility model.

Fig. 8 is a schematic structural view of a header gearbox according to a preferred embodiment of the present utility model.

Fig. 9 is a schematic view of the cutter assembly according to the preferred embodiment of the present utility model.

Description of the reference numerals

1. A cutting table; 2. a feeding device; 3. a cab assembly; 4. a shredding system; 5. a seed crushing device; 6. an accelerator assembly; 7. an engine; 8. a transfer case; 9. a frame; 10. a drive box; 11. a PTO shaft; 12. a main pulley; 13. a transition wheel; 14. a first belt; 15. a fan pulley; 16. shredding the belt pulley; 17. a second belt; 18. a fan output wheel; 19. a first seed crushing wheel; 20. a second seed crushing wheel; 21. a fixed wheel; 22. a third belt; 23. a secondary pulley; 24. a heat dissipation wheel; 25. a fourth belt; 141. a first tensioning mechanism; 171. a second tensioning mechanism; 172. a bracket; 173. a second tensioning wheel; 174. a screw; 175. a first cylinder; 176. adjusting the block; 177. a vertical plate; 221. a third tensioning mechanism; 222. a second cylinder; 223. tensioning a bracket; 224. a third tensioning wheel; 251. a fourth tensioning mechanism; 31. a cab; 32. a lifting device; 101. a main input gearbox; 102. a cone pulley gear box; 103. a clutch; 104. an angle drive gearbox; 105. a stalk-collecting roller gear box; 106. a header main frame; 107. a seedling roller; 108. a thumb wheel; 109. vertical stalk lifting column; 110. a crop divider; 111. a roller; 112. sawing; 113. a diversion clamping rod; 114. an intermediate crop divider.

Detailed Description

Embodiments of the utility model are described in detail below with reference to the attached drawing figures, but the utility model can be practiced in a number of different ways, as defined and covered below.

It will be appreciated that as shown in fig. 1 to 9, the preferred embodiment of the present utility model provides a silage harvester, which comprises a header 1, a feeding device 2, a cab assembly 3, a shredding system 4, a grain crushing device 5, an accelerator assembly 6, an engine 7, a transfer case 8 and a frame 9, wherein the header 1, the feeding device 2, the shredding system 4, the grain crushing device 5 and the accelerator assembly 6 are sequentially arranged along the running direction of the silage harvester and form a material flow system, the header 1 is used for harvesting crops, the feeding device 2 is used for conveying the harvested crops to the shredding system 4 for shredding, the grain crushing device 5 is used for rolling and crushing the shredded materials, the accelerator assembly 6 is used for throwing the crushed materials onto a transport vehicle, the feeding device 2, the cab assembly 3, the shredding system 4, the grain crushing device 5, the accelerator assembly 6, the engine 7 and the transfer case 8 are fixedly connected with the frame 9, and the engine 7 is connected with the shredding system 4, the grain crushing device 5 and the grain crushing device 6 directly through the driving mechanism 1 and the transfer case 8. The feeding device 2 is connected with the shredding system 4 through a pin shaft, the header 1 is directly connected with the feeding device 2 through a hanging frame, the grain crushing device 5 is fixedly connected with the frame 9 through bolts on one hand, and the position of the grain crushing device is fixed through baffle limiting on the accelerator assembly 6 on the other hand. In addition, the feeding device 2, the shredding system 4, the grain crushing device 5 and the accelerator assembly 6 are all of the prior art, so the specific structure is not described herein.

It can be understood that in the silage harvester of this embodiment, the header 1, the feeding device 2, the shredding system 4, the grain crushing device 5 and the accelerator assembly 6 are sequentially arranged along the running direction of the silage harvester and form a material flow system, so that the functional integration level of the silage harvester is greatly improved, a plurality of operation links such as cutting, crushing, throwing and loading can be completed in one operation, auxiliary operation is not required to be performed by other machines, the harvesting time is greatly shortened, and the power of each operation mechanism is directly provided by the engine 7 without additional power source.

Optionally, the cab assembly 3 includes a cab 31 and a lifting device 32, the lifting device 32 is disposed below the cab 31, and the lifting device 32 is driven by an oil cylinder to lift, so as to drive the cab 31 to lift synchronously. Because some silage can be longer than 4 meters, and the driving visual field height of the silage harvester is only about 3.6m, the height of the cab 31 can be adjusted through the lifting device 32, so that the visual field of a driver is improved, and the harvesting safety is improved. The lifting device 32 may be an existing hydraulic lifting platform structure.

It can be understood that the transfer case 8 is in driving connection with a two-in and two-out driving case 10 through a hydraulic system composed of an additional pump group, a motor and a hydraulic pipeline, the transfer case 8 transmits power to the driving case 10, and two output ends of the driving case 10 are respectively in driving connection with the header 1 and the feeding device 2 through a PTO shaft 11. In addition, a main belt pulley 12 is arranged on one side of the transfer case 8, the main belt pulley 12 is in driving connection with the engine 7, two transition wheels 13 which are coaxially arranged are arranged in front of the main belt pulley 12, the main belt pulley 12 is in driving connection with one of the transition wheels 13 through a first belt 14, a fan belt pulley 15 is arranged on one side of the accelerator assembly 6, a shredding belt pulley 16 is arranged on the same side of the shredding system 4, and the fan belt pulley 15, the shredding belt pulley 16 and the other transition wheel 13 are in driving connection through a second belt 17, so that power is transmitted to the shredding system 4 and the accelerator assembly 6. In addition, a fan output wheel 18 is coaxially arranged on the other side of the accelerator assembly 6 and the fan belt pulley 15, a first grain crushing wheel 19 and a second grain crushing wheel 20 are respectively arranged on a moving roller and a fixed roller of the grain crushing device 5, the first grain crushing wheel 19 and the second grain crushing wheel 20 are arranged in the same direction, the diameter of the first grain crushing wheel 19 is smaller than that of the second grain crushing wheel 20, the rotating speed is relatively fast, the speed difference between the two is about 30%, a fixed wheel 21 is fixedly arranged on the frame 9, the fan output wheel 18, the first grain crushing wheel 19, the second grain crushing wheel 20 and the fixed wheel 21 are in transmission connection through a third belt 22, and the first grain crushing wheel 19 and the second grain crushing wheel 20 are respectively positioned on the inner side and the outer side of the third belt 22, and the rotating directions of the first grain crushing wheel 19 and the second grain crushing wheel 20 are opposite, so that power is transmitted to the grain crushing device 5. Optionally, a secondary pulley 23 is arranged on the other side of the transfer case 8, the secondary pulley 23 is in driving connection with the engine 7, a radiator 24 is arranged in front of the secondary pulley 23, the secondary pulley 23 and the radiator 24 are in driving connection through a fourth belt 25, and the radiator 24 is connected with a radiator fan through a gear box, so that the radiator fan in power transmission is realized. It can be understood that the whole traditional system is arranged in a pipelining manner, so that the whole machine is more compact in structure, convenient to maintain and high in transmission efficiency, is provided with a cooling fan, and can realize heat dissipation of the whole machine.

Optionally, a first tensioning mechanism 141 is provided between the main belt pulley 12 and the transition wheel 13, the first tensioning mechanism 141 is a four-bar mechanism with a tensioning wheel, the tensioning wheel is placed on the first belt 14 and is used for tensioning the first belt 14, the tensioning wheel is installed on an upper connecting rod of the four-bar mechanism, two ends of the upper connecting rod of the four-bar mechanism are hinged with the frame 9, a lower connecting rod is connected with one end of a spring through a plurality of connecting rods, the other end of the spring is connected with the frame 9, when vibration is large or the belt is loose, the upper position and the lower position of the tensioning wheel are adjustable through adjusting the compression degree of the spring, so that the tensioning force of the first belt 14 is adjusted, tensioning adjustment is very convenient, and the reliability of a transmission mechanism is ensured.

In addition, a second tensioning mechanism 171 is provided between the transition wheel 13 and the fan pulley 15 for adjusting the tensioning force of the second belt 17 and increasing the wrap angle of the second belt 17. The second tensioning mechanism 171 comprises a bracket 172, a second tensioning wheel 173, a screw 174 and a first oil cylinder 175, wherein the upper end of the bracket 172 is rotatably mounted on the frame 9, the lower end of the bracket 172 is connected with the second tensioning wheel 173, the second tensioning wheel 173 is placed on the second belt 17, the middle part of the bracket 172 is connected with the driving end of the first oil cylinder 175 through the screw 174, the fixed end of the first oil cylinder 175 is mounted on the frame 9, the bracket 172 can be driven to rotate around the upper end by adjusting the expansion degree of the first oil cylinder 175, and accordingly the upper and lower positions of the second tensioning wheel 173 are adjusted, and the tensioning force of the second belt 17 is coarse-adjusted. Optionally, a spring is further sleeved on the screw 174, so as to play roles of buffering and elastic resetting. As a preferred option, the second tensioning mechanism 171 further includes an adjusting block 176, the adjusting block 176 is fixedly connected with the second tensioning wheel 173, two vertical plates 177 perpendicular to each other are fixedly disposed on the side surface of the lower end of the bracket 172, the two vertical plates 177 are connected with the adjusting block 176 through bolts, after the tensioning degree of the second belt 17 is coarse-tuned through the first oil cylinder 175, the tensioning force of the second belt 17 can be finely tuned through the tightness degree of the adjusting bolts, so as to realize the precise adjustment of the tensioning force. In addition, the structure of the adjusting block 176 and the vertical plate 177 is also applicable to the first tensioning mechanism 141, namely, the upper end of the four-bar mechanism is connected with the tensioning wheel through the adjusting block 176 and the vertical plate 177.

In addition, a third tensioning mechanism 221 is disposed between the fan output wheel 18 and the second grain crushing wheel 20, the third tensioning mechanism 221 includes a second oil cylinder 222, a tensioning support 223, and a third tensioning wheel 224, the second oil cylinder 222 is mounted on the frame 9, the upper end of the tensioning support 223 is connected with the second oil cylinder 222, the middle part is hinged with the frame 9, the lower end is connected with the third tensioning wheel 224, and the tensioning support 223 can be driven to rotate by adjusting the expansion degree of the second oil cylinder 222, so that the front and back positions of the third tensioning wheel 224 are adjusted, and the tensioning force of the third belt 22 is further adjusted.

In addition, a fourth tensioning mechanism 251 is arranged between the auxiliary belt pulley 23 and the heat dissipation wheel 24, the fourth tensioning mechanism 251 is a triangular bracket structure with a tensioning wheel, the tensioning wheel is arranged on the fourth belt 25, a first end of the triangular bracket is connected with the tensioning wheel, a second end of the triangular bracket is hinged with the frame 9, a third section of the triangular bracket is connected to the frame 9 through a spring, the triangular bracket can be pushed to rotate around a hinge point with the frame 9 through the compression degree of the adjusting spring, so that the upper position and the lower position of the tensioning wheel are adjusted, and the tensioning force of the fourth belt 25 is adjusted.

It can be understood that in the transmission system of the silage harvester, each section of transmission belt is correspondingly provided with a tensioning adjusting mechanism, so that the tensioning degree of the transmission belt is convenient to adjust, the adjustment operation is very convenient, and the reliability of the transmission system is improved.

In addition, the header 1 comprises a header gearbox and a cutter assembly, wherein the header gearbox is used for transmitting power to the cutter assembly so as to drive the cutter assembly to rotate for harvesting crops. The header gearbox comprises a main input gearbox 101, a cone pulley gearbox 102, a clutch 103, an angle transmission gearbox 104, a stem collecting roller gearbox 105 and a header main frame 106, wherein the number of the cone pulley gearboxes 102 is two, the number of the angle transmission gearboxes 104 and the stem collecting roller gearboxes 105 is four, the two cone pulley gearboxes 102 and the four angle transmission gearboxes 104 are fixedly arranged on the header main frame 106, the main input gearbox 101 is fixedly connected with the left cone pulley gearbox 102, the left cone pulley gearbox 102 and the right cone pulley gearbox 102 are connected through the clutch 103 in the middle, and the stem collecting roller gearboxes 105 are fixedly connected with the angle transmission gearboxes 104 in a one-to-one correspondence manner. The main input gear box 101 is connected with a PTO shaft 11, the main input gear box 101 directly drives a left cone pulley gear box 102, the left cone pulley gear box 102 drives a right cone pulley gear box 102 through a clutch 103, meanwhile, two cone pulley gear boxes 102 and four angle transmission gear boxes 104 are coaxially arranged, four angle transmission gear boxes 104 are synchronously driven through the two cone pulley gear boxes 102, each angle transmission gear box 104 correspondingly drives a stem collecting roller gear box 105, overload slipping can be achieved through the clutch 103, and the overall safety of the header 1 is protected. In addition, the specific structures of the main input gear box 101, the cone pulley gear box 102, the clutch 103, the angle drive gear box 104 and the stalk-collecting roller gear box 105 belong to the prior art, and are not described herein, and reference is made to patent CN113606293a. It can be understood that the header 1 is quite compact in structure, high in transmission precision and reliability through all-gear transmission, and can realize power split through a single-input multi-output mode, so that the cutting-off, clamping and conveying operation requirements of the cutter assembly can be met simultaneously.

In addition, the cutter assembly comprises a grain lifting roller 107, a thumb wheel 108, a vertical grain lifting column 109, a grain divider 110, a roller 111, a saw blade 112, a diversion clamping rod 113, a middle grain divider 114 and the like, wherein the two grain lifting rollers 107 are arranged at two side edge positions of the header 1 and are particularly fixedly connected with two ends of the header main frame 106, the grain lifting roller 107 has a safety protection function and supports lodged or cut crops, and the crops can be smoothly fed into the header 1. The number of the rollers 111 is four, a saw blade 112 is coaxially arranged at the lower end of each roller 111, two output ends are arranged at the upper and lower ends of each stalk collecting roller gear box 105, and the two output ends are fixedly connected with the rollers 111 and the saw blade 112 through bolts respectively, namely, one stalk collecting roller gear box 105 correspondingly drives one roller 111 and one saw blade 112 to rotate. Four layers of thumb wheels 108 are arranged on each roller 111, the thumb wheels 108 are fixed on the rollers 111 through welding, and a cleaner is arranged on each thumb wheel 108 at certain intervals, so that excessive materials are prevented from being brought into the operation process to block the cutting table 1 or wind the rollers 111. Vertical stalk lifting columns 109 are fixed on the two rollers 111 positioned at the two side edges through bolts and are used for supporting crops, and the vertical stalk lifting columns 109 are fixedly connected with one output end of the stalk collecting roller gearbox 105, and specifically, the output ends of the stalk collecting roller gearbox and the rollers 111 are shared. The multiple diversion clamping rods 113 are fixedly connected to the box body of each stalk-collecting roller gearbox 105 through bolts and are arranged at intervals, the two crop dividers 110 are respectively positioned between the two rollers 111 on the left side and the two rollers 111 on the right side, the crop dividers 110 are specifically and fixedly arranged on the side face of the box body of the stalk-collecting roller gearbox 105 or on the main header frame 106, and the crop dividers 110 and the diversion clamping rods 113 can play roles in guiding and assisting in cutting crops entering a working area in a matched mode, so that the cut crop straws can be smoothly fed to the next link when the crops are supported and cut. The middle crop divider 114 is located between the middle two rollers 111, and the middle crop divider 114 is specifically installed on the side surface of the box body of the stalk-collecting roller gearbox 105 or on the header main frame 106, and is used for guiding crop stalks entering the working area, so as to ensure that crops smoothly enter the feeding port of the feeding device 2. In addition, the rotation speed of the saw blade 112 is higher than that of the roller 111, the rotation directions of the left roller 111 and the right roller 111 are the same, the rotation directions of the left roller 111 and the right roller 111 are opposite, and the rotation directions of the roller 111 and the corresponding saw blade 112 are opposite, so that the operation is conveniently cut, and the cut crop straws are conveyed to the middle crop divider 114. When harvesting, the crop is cut off by the saw blade 112, and then the crop straw is clamped by the thumb wheel 108, and enters the feeding device 2 through the grain lifting roller 107, the grain divider 110, the diversion clamping rod 113, the middle grain divider 114 and the like, so that the next processing link is entered. It can be understood that the header 1 of the existing silage machine is only provided with two groups of rollers 111 and saw blades 112, the harvesting range is smaller, and the harvesting efficiency is high, while the header 1 of the utility model is provided with four groups of rollers 111 and saw blades 112, so that the harvesting range of the header 1 is increased, and the harvesting efficiency is improved.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The utility model provides a silage harvester, its characterized in that includes header (1), feeding device (2), driver's cabin assembly (3), shredding system (4), seed breaker (5), accelerator assembly (6), engine (7), transfer case (8) and frame (9), header (1), feeding device (2), shredding system (4), seed breaker (5), accelerator assembly (6) set gradually and constitute the material flow system along the direction of travel of silage harvester, header (1) are used for harvesting the crop, feeding device (2) are used for carrying the crop of harvesting to shredding system (4) and carry out shredding, seed breaker (5) are used for rolling the shredding to the material after shredding, accelerator assembly (6) are used for carrying the material after the breakage to the transport vechicle, feeding device (2), driver's cabin assembly (3), shredding system (4), seed breaker (5), accelerator assembly (6), engine (8), transfer case (8) all are fixedly connected with frame (4), engine (7), seed breaker (5) and direct connection (8) through transfer case (1) and shredding system (8) The feeding device (2) is indirectly connected in a driving way.

2. Silage harvester according to claim 1, characterized in that the transfer case (8) is in driving connection with a two-in two-out driving case (10) through a hydraulic system, and the two output ends of the driving case (10) are in driving connection with the header (1) and the feeding device (2) through PTO shafts (11) respectively.

3. Silage harvester according to claim 1, characterized in that one side of the transfer case (8) is provided with a main belt pulley (12), the main belt pulley (12) is in driving connection with the engine (7), two coaxially arranged transition wheels (13) are arranged in front of the main belt pulley (12), the main belt pulley (12) is in driving connection with one of the transition wheels (13) through a first belt (14), one side of the accelerator assembly (6) is provided with a fan belt pulley (15), the same side of the shredding system (4) is provided with a shredding belt pulley (16), and the fan belt pulley (15), the shredding belt pulley (16) and the other transition wheel (13) are in driving connection through a second belt (17).

4. A silage harvester according to claim 3, characterized in that the other side of the accelerator assembly (6) and the fan belt pulley (15) are coaxially provided with a fan output wheel (18), a first grain crushing wheel (19) and a second grain crushing wheel (20) are respectively arranged on a moving roller and a fixed roller of the grain crushing device (5), a fixed wheel (21) is fixedly arranged on the frame (9), the fan output wheel (18), the first grain crushing wheel (19), the second grain crushing wheel (20) and the fixed wheel (21) are in transmission connection through a third belt (22), and the first grain crushing wheel (19) and the second grain crushing wheel (20) are respectively arranged on the inner side and the outer side of the third belt (22).

5. Silage harvester according to claim 1, characterized in that the transfer case (8) is provided on the other side with a secondary pulley (23), the secondary pulley (23) is in driving connection with the engine (7), a radiator wheel (24) is provided in front of the secondary pulley (23), the secondary pulley (23) and the radiator wheel (24) are in driving connection via a fourth belt (25), and the radiator wheel (24) is connected with a radiator fan via a gearbox.

6. A silage harvester according to claim 3, characterized in that a first tensioning mechanism (141) is arranged between the main belt pulley (12) and the transition wheel (13), the first tensioning mechanism (141) is a four-bar mechanism with a tensioning wheel, the tensioning wheel is placed on the first belt (14), two ends of an upper connecting rod of the four-bar mechanism are hinged with the frame (9), a lower connecting rod is connected with one end of a spring through a plurality of connecting rods, the other end of the spring is connected with the frame (9), and the upper position and the lower position of the tensioning wheel can be adjusted by adjusting the compression degree of the spring, so that the tensioning force of the first belt (14) is adjusted.

7. A silage harvester according to claim 3, characterized in that a second tensioning mechanism (171) is arranged between the transition wheel (13) and the fan pulley (15) for adjusting the tension of the second belt (17) and increasing the wrap angle of the second belt (17).

8. The silage harvester of claim 7, wherein the second tensioning mechanism (171) comprises a bracket (172), a second tensioning wheel (173), a screw (174) and a first oil cylinder (175), the upper end of the bracket (172) is rotatably mounted on the frame (9), the lower end of the bracket (172) is connected with the second tensioning wheel (173), the second tensioning wheel (173) is placed on the second belt (17), the middle part of the bracket (172) is connected with the driving end of the first oil cylinder (175) through the screw (174), the fixed end of the first oil cylinder (175) is mounted on the frame (9), and the up-down position of the second tensioning wheel (173) can be adjusted by adjusting the expansion degree of the first oil cylinder (175), so that the tensioning force of the second belt (17) is roughly adjusted.

9. The silage harvester of claim 8, wherein the second tensioning mechanism (171) further comprises an adjusting block (176), the adjusting block (176) is fixedly connected with the second tensioning wheel (173), two vertical plates (177) perpendicular to each other are fixedly arranged on the side surface of the lower end of the bracket (172), the two vertical plates (177) are connected with the adjusting block (176) through bolts, and the tensioning force of the second belt (17) can be finely adjusted through the tightness degree of the adjusting bolts.

10. The silage harvester of claim 4, wherein a third tensioning mechanism (221) is arranged between the fan output wheel (18) and the second grain crushing wheel (20), the third tensioning mechanism (221) comprises a second oil cylinder (222), a tensioning support (223) and a third tensioning wheel (224), the second oil cylinder (222) is arranged on the frame (9), the upper end of the tensioning support (223) is connected with the second oil cylinder (222), the middle part of the tensioning support is hinged with the frame (9), the lower end of the tensioning support is connected with the third tensioning wheel (224), the tensioning support (223) can be driven to rotate by adjusting the telescopic degree of the second oil cylinder (222), and accordingly the front-back position of the third tensioning wheel (224) is adjusted, and the tensioning force of the third belt (22) is adjusted.