Feeding system and silage harvester

Abstract

A feeding system. The feeding system comprises a feeding transmission structure; the feeding transmission structure comprises a driving assembly (100), a first output shaft assembly (200), a second output shaft assembly (300), a gear transmission assembly (500), and a feeding device; the output end of the driving assembly (100) is separately connected to the first output shaft assembly (200) and the second output shaft assembly (300) and is used for separately transmitting power to the first output shaft assembly (200) and the second output shaft assembly (300); the output end of the first output shaft assembly (200) is adapted to be connected to a header assembly to provide working power for the header assembly; the second output shaft assembly (300) is connected to the gear transmission assembly (500) and is used for transmitting power to the gear transmission assembly (500); the output end of the gear transmission assembly (500) is connected to the feeding device and is used for transmitting power to the feeding device. According to the system, the transmission reliability of the feeding system of a silage harvester and the silage crop harvesting quality are improved, and the pre-pressure of the feeding device can be adjusted. Also disclosed is a silage harvester.

Description

Feeding system and silage machine Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and in particular to a feeding system and a silage machine. Background Art

[0002] A silage harvester primarily consists of a header assembly, a feeding drive, a chopping unit, a grain crushing unit, a throwing unit, and a powertrain system. It can simultaneously complete the cutting, crushing, throwing, and loading of silage crops. After a period of anaerobic microbial fermentation, the harvested silage undergoes a series of physical, chemical, and biological changes, resulting in a juicy, storable, palatable, and highly nutritious silage suitable for year-round feeding. The feeding drive in a silage harvester is primarily responsible for feeding and compacting the cut silage crops and transferring them to the chopping unit according to set requirements. It also provides power for the header assembly and is a crucial component in determining the cutting length, chopping quality, and harvest quality of the silage crops.

[0003] For example, Chinese invention patent application CN208353989U discloses an automatic speed-changing feeding device for a silage machine, in which a power wheel 18 provides a power source for the feeding device. The power wheel is connected to the gearbox by a shaft to transmit power to the gearbox. The gearbox and gear V transmit power through a chain. Gear V is connected to one end of the fixed pressure roller I through a bearing, and the other end of the fixed pressure roller I is connected to gear VII, that is, power is transmitted to gear VII. It should be noted that gear VII is composed of three gears, and the three gears are coaxial and are all installed on the fixed pressure roller, and there is a certain interval between the three gears. The three gears VII transmit power to gear VI, gear VIII and gear IX respectively through chain transmission. VI is connected to one end of the fixed feeding roller, and the other end of the fixed feeding roller is inserted into the circular hole of the shell. One end of gear VIII is connected to the fixed pressure roller II, and the other end of the fixed pressure roller II is inserted into the circular hole of the shell.

[0004] However, the aforementioned feeding transmission device uses a chain drive between the two gears, resulting in poor transmission stability, a high failure rate, and is not suitable for use in locations with large load changes. Furthermore, there is a risk of elastic slippage and skidding, which reduces harvesting efficiency and fails to maintain an accurate transmission ratio, resulting in uneven crop processing and significantly affecting the harvest quality of silage crops.

[0005] Crop feeding is a key link in the entire operation process, which directly affects the operation efficiency and crop chopping quality. The silage machine feeding device is usually composed of one or more pairs of feeding rollers. The feeding rollers arranged on the top are floating rollers, and the feeding rollers arranged on the bottom are fixed rollers. During the operation, the upper roller and the lower roller move relative to each other to transport the crops. The upper roller is pre-tightened by a spring device and fixed to the feeding frame. During the harvesting operation, the spring device compacts the crops. The more compact and evenly the crops are compacted, the better the cutting effect.

[0006] When a silo is operating in the field, it is usually necessary to preload the floating rollers with springs. The spring preload effect will directly affect the quality of crop shredding. When there is no preload or the preload force is too small, the material will shake violently when entering the feeding device. At the same time, when the harvesting yield is not high or the material density is low, the material cannot be effectively compacted and the clamping force of the feeding roller is weakened, resulting in material blockage or poor material shredding quality. At the same time, when the preload is too large, excessive power loss may occur during the harvesting process, which may easily lead to material blockage. For example, the invention patent with patent number EP1151658A1 discloses a silage feeder device. The feeding device consists of three pairs of rollers. The upper roller is a floating roller connected by two front and rear tension springs to passively apply compaction force to the material. The purpose is to compact the material transported to the feeding device through the two tension springs to ensure the shredding quality. The tension spring is connected to the floating roller through a hook and fixed to the frame. The structure is simple and easy to disassemble. This solution has the disadvantage of not being able to set preload on the spring mechanism. When the silage loader is feeding a small amount of material during harvesting, it can't provide sufficient compaction force, which can affect shredding quality. Furthermore, uncompacted material can be transported in time and cause blockage. The tension spring is fixed to the frame with a hook, which can fail when the tension is too high.

[0007] In summary, there is an urgent need for a silage machine that can ensure the reliability of the transmission of the feeding system and adjust the pre-pressure of the feeding device to solve the problems existing in the prior art.

[0008] Summary of the Invention

[0009] The object of the present invention is to provide a feeding system and a silage machine to solve the technical problems of poor transmission reliability of the feeding system in the existing silage machine, easy failure when the alternating load is large, unreliable silage crop harvesting quality, and inability to adjust the pre-pressure of the feeding device. The specific technical solution is as follows: The present invention provides a feeding system, including a feeding transmission structure, the feeding transmission structure includes a drive assembly, a first output shaft assembly, a second output shaft assembly, a gear transmission assembly and a feeding device, the output end of the drive assembly is respectively connected to the first output shaft assembly and the second output shaft assembly and is used to transmit power to the first output shaft assembly and the second output shaft assembly respectively, the output end of the first output shaft assembly is used to connect to the cutting table assembly to provide working power for the cutting table assembly, the second output shaft assembly is connected to the gear transmission assembly and is used to transmit power to the gear transmission assembly, and the output end of the gear transmission assembly is connected to the feeding device and is used to transmit power to the feeding device The feeding device is used to compact the crops and transfer the crops to the chopping device, wherein: the feeding device includes a feeding frame, a feeding roller assembly connected to the output end of the gear transmission assembly and a pressing mechanism, the feeding roller assembly includes an upper roller assembly and a lower roller assembly, the upper roller assembly and the lower roller assembly are arranged relatively on the feeding frame, a feeding channel for conveying crops is formed between the upper roller assembly and the lower roller assembly, the pressing mechanism includes a clamping assembly and a tensioning assembly, the clamping assembly is arranged on the feeding frame and connected to the upper roller assembly, the clamping assembly is used to apply pressure to the upper roller assembly toward the lower roller assembly, and the pressure of the clamping assembly is adjustable, the tensioning assembly is arranged on the feeding frame and connected to the upper roller assembly, the tensioning assembly is used to apply tension to the upper roller assembly in a direction toward the lower roller assembly, and the tension of the tensioning assembly is adjustable.

[0010] A further improvement to the feeding system of the present invention is that the drive assembly includes a drive motor, a drive box connected to the output end of the drive motor, and an emergency stop valve connected to the drive motor, wherein the output end of the drive box is respectively connected to a first output shaft assembly and a second output shaft assembly. A further improvement to the feeding system of the present invention is that the first output shaft assembly includes a first power output shaft connected to the output end of the drive box, a first spline shaft connected to the output end of the first power output shaft, and a second power output shaft connected to the output end of the first spline shaft for connecting to a header assembly to provide operating power to the header assembly. A further improvement to the feeding system of the present invention is that the second output shaft assembly includes a third power output shaft connected to the output end of the drive box, a second spline shaft connected to the output end of the third power output shaft, and a fourth power output shaft respectively connected to the output end of the second spline shaft and the input end of the gear transmission assembly. A further improvement of the feeding system of the present invention is that the feeding roller assembly includes a lower roller assembly rotatably arranged in the feeding frame and connected to the output end of the gear transmission assembly, and an upper roller assembly rotatably arranged in the feeding frame and connected to the output end of the gear transmission assembly, the upper roller assembly being located above the lower roller assembly and maintaining a preset spacing with the lower roller assembly.

[0011] A further improvement of the feeding system of the present invention is that a floating assembly is arranged on the feeding frame in a swingable manner and is respectively connected to the output end of the gear transmission assembly and the upper roller assembly for transmitting power from the gear transmission assembly to the upper roller assembly and allowing the upper roller assembly to float up and down relative to the lower roller assembly according to the feeding amount of the crop, thereby adjusting the preset spacing. The upper roller assembly is arranged on the floating assembly.

[0012] A further improvement of the feeding system of the present invention is that the upper roller assembly includes a first upper roller and a second upper roller arranged at intervals along the feeding direction of the crop, and the floating assembly includes a floating member connected to the output end of the gear transmission assembly and respectively connected to the first upper roller and the second upper roller for transmitting power to the first upper roller and the second upper roller, a tensioning assembly connected to the floating member and the feeding frame respectively for pulling the first upper roller toward the lower roller assembly, and a pressing assembly connected to the floating member and the feeding frame respectively for pressing the second upper roller toward the lower roller assembly.

[0013] A further improvement of the feeding system of the present invention is that the floating member includes a floating gear box swingably arranged on the first side wall of the feeding frame and connected to the output end of the gear transmission assembly, a swing frame swingably arranged on the second side wall of the feeding frame, and a synchronous rocker arm hinged to the feeding frame and with free ends respectively connected to the floating gear box and the swing frame, the first end of the first upper roller is connected to the floating gear box, the second end of the first upper roller is connected to the swing frame, the first end of the second upper roller is connected to the floating gear box, and the second end of the second upper roller is connected to the swing frame.

[0014] A further improvement of the feeding system of the present invention is that the tensioning assembly includes a first tension spring arranged on the first side wall of the feeding frame and connected to the floating gear box and the feeding frame respectively, for pulling the floating gear box toward the lower roller assembly to drive the first upper roller to move toward the lower roller assembly, and a second tension spring arranged on the second side wall of the feeding frame and connected to the swing frame and the feeding frame respectively, for pulling the swing frame toward the lower roller assembly to drive the first upper roller to move toward the lower roller assembly; and / or the pressing assembly includes a first compression spring arranged on the first side wall of the feeding frame and connected to the floating gear box and the feeding frame respectively, for pressing the floating gear box toward the lower roller assembly to drive the second upper roller to move toward the lower roller assembly, and a second compression spring arranged on the second side wall of the feeding frame and connected to the swing frame and the feeding frame respectively, for pressing the swing frame toward the lower roller assembly to drive the second upper roller to move toward the lower roller assembly.

[0015] A further improvement of the feeding system of the present invention is that the lower roller assembly includes a first lower roller and a second lower roller arranged in sequence on the feeding frame along the conveying direction of the feeding channel, the tensioning assembly is connected to the first upper roller, and the pressing assembly is connected to the second upper roller.

[0016] A further improvement of the feeding system of the present invention is that the first upper roller and the second upper roller are distributed in a stepped manner, the first lower roller and the second lower roller are distributed in a stepped manner, and the gap between the second upper roller and the second lower roller is smaller than the gap between the first upper roller and the first lower roller.

[0017] A further improvement of the feeding system of the present invention is that the feeding frame is also provided with a driving mechanism connected to the feeding roller assembly, the driving mechanism including a driving member, a fixed gear box connected to the driving member and used to drive the first lower roller to rotate, a universal joint shaft connected to the fixed gear box, and a floating gear box connected to the universal joint shaft and used to drive the first upper roller to rotate.

[0018] A further improvement of the feeding system of the present invention is that the tensioning assembly includes a tension spring, an upper plug, a lower plug, a mounting plate and a tension spring hook, the mounting plate is arranged on the feeding frame, the first end of the tension spring is connected to the upper plug, the tension spring hook includes a screw and a hook hinged to the screw, the screw is threadedly connected to the upper plug, the hook is connected to the floating gear box, the second end of the tension spring is connected to the lower plug, the lower plug is fixedly connected to the mounting plate by a bolt, and the upper plug is used to rotate and adjust the overlap with the threaded connection of the screw, thereby adjusting the tension applied by the tension spring to the floating gear box.

[0019] A further improvement of the feeding system of the present invention is that both ends of the first upper roller are provided with a floating gear box and a tensioning assembly connected to the floating gear box.

[0020] The cam is secured to the bottom of the roll and is secured to the bottom of the roll with respect to the spring when the cam is engaged.

[0021] A further improvement of the feeding system of the present invention is that both ends of the second upper roller are provided with connecting rod seats and a pressing assembly connected to the connecting rod seats.

[0022] A further improvement of the feeding system of the present invention is that a metal detector is provided in the first upper roller and / or the first lower roller.

[0023] The present invention provides a silage machine comprising the above-mentioned feeding system.

[0024] The application of the technical solution of the present invention has the following beneficial effects:

[0025] (1) The feeding system of the present invention, the driving assembly drives the first output shaft assembly and the second output shaft assembly to work respectively, so as to connect the cutting table assembly through the first output shaft assembly to provide working power for the cutting table assembly, thereby controlling the crop cutting length of the cutting table assembly, and transmitting power to the gear transmission assembly through the output shaft assembly, and the gear transmission assembly transmits power to the feeding roller assembly through the gear structure to drive the feeding roller assembly to compact and transmit the crop to the chopping device, and the power is output in two ways, which do not affect each other. This scheme is achieved through the driving assembly, the first output shaft assembly, the second output shaft assembly, the gear transmission ... The wheel transmission assembly and the feed roller assembly cooperate with each other. Compared with the existing technology, gears and output shafts are used to transmit power throughout the process, with high transmission reliability, low failure rate, and the ability to withstand large alternating loads. The crops are processed evenly, and the feed roller assembly is driven by the gear transmission assembly. The torque provided by the gear meshing transmission is relatively large, which can achieve normal harvesting operations while increasing the feed volume, indirectly improving work efficiency. It also controls the operation of the harvesting table assembly to achieve effective control of the cutting length of the crops, which is beneficial to the subsequent processing of the crops and improves the quality of crop adoption. It is highly practical and suitable for wide promotion and application.

[0026] (2) When the crop enters the feeding device, a pressure mechanism is provided to adjust the magnitude of the pre-pressure generated by the upper roller assembly toward the lower roller assembly, so that the feeding roller can uniformly apply pressure to the material, thereby compacting the crop. In a specific implementation, the upper roller assembly includes a first upper roller and a second upper roller sequentially arranged on the upper part of the feeding frame along the conveying direction of the crop, and the lower roller assembly includes a first lower roller and a second lower roller sequentially arranged on the lower part of the feeding frame along the conveying direction of the crop, the tensioning assembly is connected to the first upper roller and is used to adjust the magnitude of the pressure applied by the first upper roller toward the first lower roller, thereby compacting the crop, and the compacting assembly is connected to the second upper roller and is used to adjust the magnitude of the pulling force applied by the second upper roller toward the second lower roller, thereby compacting the crop. In summary, by arranging a clamping assembly and a tensioning assembly on the feeding frame to apply pressure to the upper roller assembly, the size of the pre-pressure generated by the upper roller assembly toward the lower roller assembly can be adjusted, so that the feeding device can adjust the pre-pressure, so that the feeding roller assembly can apply pressure to the material evenly, thereby improving the chopping quality of the material, improving the quality of the feed, and increasing economic benefits.

[0027] In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0029] FIG1 is a schematic structural diagram of a feeding system according to a preferred embodiment of the present invention;

[0030] FIG2 is a schematic diagram of a portion of the structure of a feeding system according to a preferred embodiment of the present invention;

[0031] FIG3 is a partial structural diagram of a feeding system according to a preferred embodiment of the present invention;

[0032] FIG4 is a partial structural diagram of a feeding system according to a preferred embodiment of the present invention.

[0033] FIG5 is a schematic structural diagram of a silage machine feeding device according to a preferred embodiment of the present invention;

[0034] FIG6 is a schematic diagram of the installation of a pressurizing mechanism according to a preferred embodiment of the present invention;

[0035] 7 is a schematic structural diagram of a tensioning assembly according to a preferred embodiment of the present invention;

[0036] FIG8 is a schematic structural diagram of a compression assembly according to a preferred embodiment of the present invention;

[0037] FIG9 is a schematic structural diagram of a feed roller assembly according to a preferred embodiment of the present invention.

[0038] Among them, 100, drive assembly; 110, drive motor; 120, drive box; 200, first output shaft assembly; 210, first power output shaft; 220, second power output shaft; 300, second output shaft assembly; 310, third power output shaft; 320, fourth power output shaft; 500, gear transmission assembly; 600, feed roller assembly; 700, floating assembly; 710, floating member; 712, swing frame; 713, synchronous rocker arm; 720, tensioning assembly; 730, pressing assembly; 10, feed frame; 101. Compression spring cover plate; 102. Connecting rod seat; 20. Upper roller assembly; 201. First upper roller; 202. Second upper roller; 30. Lower roller assembly; 301. First lower roller; 302. Second lower roller; 40. Fixed gearbox; 401. Universal joint; 402. Floating gearbox; 50. Tension spring; 501. Upper plug; 502. Lower plug; 503. Mounting plate; 504. Tension spring hook; 60. Compression spring; 601. Compression spring sleeve; 602. Compression spring bottom plug; 603. Compression spring nut; 604. Compression spring hook. DETAILED DESCRIPTION

[0039] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered by the claims.

[0040] As shown in Figure 1, the feeding system of this embodiment includes a feeding transmission structure, which includes a drive assembly 100, a first output shaft assembly 200, a second output shaft assembly 300, a gear transmission assembly 500 and a feeding device. The output end of the drive assembly 100 is respectively connected to the first output shaft assembly 200 and the second output shaft assembly 300 and is used to transmit power to the first output shaft assembly 200 and the second output shaft assembly 300, respectively. The output end of the first output shaft assembly 200 is used to connect to the header assembly to provide working power for the header assembly. The second output shaft assembly 300 is connected to the gear transmission assembly 500 and is used to transmit power to the gear transmission assembly 500. The output end of the gear transmission assembly 500 is connected to the feeding device and is used to transmit power to the feeding device. The feeding device is used to compact crops and transfer the crops to the chopping device. The feeding transmission structure of the present invention, the driving assembly 100 drives the first output shaft assembly 200 and the second output shaft assembly 300 to work, so as to connect the header assembly through the first output shaft assembly 200 to provide working power for the header assembly, thereby controlling the crop cutting length of the header assembly, and transmitting power to the gear transmission assembly 500 through the output shaft assembly. The gear transmission assembly 500 transmits power to the feeding roller assembly 600 of the feeding device through the gear structure to drive the feeding device to compact and transmit the crop to the chopping device. This solution is realized by the driving assembly 100, the first output shaft assembly 200, and the second output shaft assembly. 300. The gear transmission assembly 500 and the feeding device cooperate with each other. Compared with the existing technology, gears and output shafts are used to transmit power throughout the entire process, with high transmission reliability, low failure rate, and the ability to withstand large alternating loads. The crop is processed evenly. The feeding device is driven by the gear transmission assembly 500. The torque provided by the gear meshing transmission is relatively large, which can achieve normal harvesting operations while increasing the feed volume, indirectly improving work efficiency. By controlling the operation of the cutting table assembly, effective control of the cutting length of the crop is achieved, which is beneficial to the subsequent processing of the crop and improves the quality of the crop. It is highly practical and suitable for wide promotion and application.

[0041] As shown in FIG1 , in this embodiment, the drive assembly 100 includes a drive motor 110, a drive box 120 connected to the output end of the drive motor 110, and an emergency stop valve connected to the drive motor 110. The output end of the drive box 120 is respectively connected to the first output shaft assembly 200 and the second output shaft assembly 300. Specifically, the drive motor 110 drives the drive box 120 to operate, which in turn drives the first output shaft assembly 200 and the second output shaft assembly 300 to rotate, thereby achieving power transmission. Under the action of the emergency stop valve, when the torque borne by the gear transmission assembly 500 exceeds the design of the gear transmission assembly 500, the drive motor 110 can be quickly shut down to protect the gear transmission assembly 500. At the same time, the crop cutting length can be indirectly controlled by adjusting the speed of the drive motor 110.

[0042] As shown in Figure 1, in this embodiment, the first output shaft assembly 200 includes a first power output shaft 210 connected to the output end of the drive box 120, a first spline shaft connected to the output end of the first power output shaft 210, and a second power output shaft 220 connected to the output end of the first spline shaft for connecting to the header assembly to provide working power for the header assembly. Specifically, the first power output shaft 210 is driven to rotate by the drive box 120, which in turn drives the first spline shaft to rotate. The first spline shaft then drives the second power output shaft 220 to rotate, thereby providing working power to the header assembly through the second power output shaft 220, thereby controlling the operation of the header assembly and achieving control of the crop cutting length. Optionally, the feed drive assembly also includes a mounting frame, and the first spline shaft is arranged on the mounting frame.

[0043] As shown in Figure 1, in the present embodiment, the second output shaft assembly 300 includes a 3rd power output shaft 310 connected to the output end of the drive box 120, a second spline shaft connected to the output end of the 3rd power output shaft 310, and a 4th power output shaft 320 connected to the output end of the second spline shaft and the input end of the gear transmission assembly 500 respectively. Specifically, the 3rd power output shaft 310 is driven to rotate by the drive box 120, so as to drive the second spline shaft to rotate by the 3rd power output shaft 310, and then drive the 4th power output shaft 320 to rotate by the second spline shaft, thereby driving the gear transmission assembly 500 to work by the 4th power output shaft 320, realizing power transmission. Optionally, the second spline shaft is arranged on the mounting frame. It should be understood that the specific structure of the power output shaft belongs to the well-known technology of those skilled in the art, but it is not repeated here. Optionally, the gear transmission assembly 500 includes a bevel gear connected to the fourth power output shaft 320 and multiple sets of spur gears, the multiple sets of spur gears are meshed in sequence, the bevel gear is meshed with one set of spur gears, and is used to change the direction of power transmission. The multiple sets of spur gears are connected to the feed roller assembly 600 to transmit power to the feed roller assembly 600.

[0044] As shown in FIG1 , in this embodiment, the feeding device includes a feeding roller assembly 600 and a feeding frame 10 that supports the feeding roller assembly 600 and the gear transmission assembly 500. The feeding roller assembly 600 includes a lower roller assembly 30 rotatably disposed within the feeding frame 10 and connected to the output end of the gear transmission assembly 500, and an upper roller assembly 20 rotatably disposed within the feeding frame 10 and connected to the output end of the gear transmission assembly 500. The upper roller assembly 20 is positioned above the lower roller assembly 30 and maintains a predetermined spacing therebetween. Specifically, the upper roller assembly 20 and the lower roller assembly 30 move relative to each other to compact the crop and convey it into the chopping device. The upper roller assembly 20 and the lower roller assembly 30 maintain a predetermined spacing therebetween to ensure that the crop smoothly enters the space between the upper roller assembly 20 and the lower roller assembly 30.

[0045] As shown in Figures 1 and 2, in this embodiment, a floating assembly 700 is mounted on the feed frame 10 and is swingably connected to the output end of the gear transmission assembly 500 and the upper roller assembly 20, respectively. The floating assembly 700 is used to transmit power from the gear transmission assembly 500 to the upper roller assembly 20, causing the upper roller assembly 20 to float up and down relative to the lower roller assembly 30 in response to crop feed, thereby adjusting a predetermined gap. The upper roller assembly 20 is mounted on the floating assembly 700. Specifically, because the floating assembly 700 is swingably mounted on the feed frame 10 and the upper roller assembly 20 is mounted on the floating assembly 700, when crops enter between the upper roller assembly 20 and the lower roller assembly 30, the floating assembly 700 is forced to swing, thereby causing the upper roller assembly 20 to float up and down relative to the lower roller assembly 30 to adjust the predetermined gap. This allows for increased crop feed while still enabling harvesting operations and improving harvesting efficiency. Furthermore, the power from the gear transmission assembly 500 is transmitted to the upper roller assembly 20 via the floating assembly 700, achieving power transmission.

[0046] As shown in Figure 4, in this embodiment, the upper roller assembly 20 includes a first upper roller 201 and a second upper roller 202 arranged at intervals along the feeding direction of the crop, and the floating assembly 700 includes a floating member 710 connected to the output end of the gear transmission assembly 500 and respectively connected to the first upper roller 201 and the second upper roller 202 for transmitting power to the first upper roller 201 and the second upper roller 202, a tensioning assembly 720 connected to the floating member 710 and the feeding frame 10 respectively for pulling the first upper roller 201 toward the lower roller assembly 30, and a pressing assembly 730 connected to the floating member 710 and the feeding frame 10 respectively for pressing the second upper roller 202 toward the lower roller assembly 30. Specifically, the first and second upper rollers 201 and 202 are mounted on a floating member 710. The tensioning assembly 720 then pulls the floating member 710 to swing, pulling the first upper roller 201 toward the lower roller assembly 30. Simultaneously, the pressing assembly 730 presses against the swinging floating member 710, pressing the second upper roller 202 toward the lower roller assembly 30. This improves crop compaction and feeding uniformity. It should be understood that the end of the floating member 710 near the first upper roller 201 is connected to the tensioning assembly 720. It should also be understood that the end of the floating member 710 near the second upper roller 202 is connected to the pressing assembly 730. Optionally, the lower roller assembly 30 includes a first lower roller 301 rotatably mounted on the feed frame 10 and corresponding to the first upper roller 201, and a second lower roller 302 rotatably mounted on the feed frame 10 and corresponding to the second upper roller 202.

[0047] As shown in Figures 1 to 3, in this embodiment, the floating member 710 includes a floating gearbox 402 swingably arranged on a first side wall of the feeding frame 10 and connected to the output end of the gear transmission assembly 500, a swing frame 712 swingably arranged on a second side wall of the feeding frame 10, and a synchronous rocker arm 713 hinged to the feeding frame 10 and having free ends connected to the floating gearbox 402 and the swing frame 712, respectively. The first end of the first upper roller 201 is connected to the floating gearbox 402, the second end of the first upper roller 201 is connected to the swing frame 712, the first end of the second upper roller 202 is connected to the floating gearbox 402, and the second end of the second upper roller 202 is connected to the swing frame 712. Specifically, optionally, the gear transmission assembly 500 is connected to the floating gearbox 402 via a power output shaft. Specifically, the first upper roller 201 and the second upper roller 202 are installed through the floating gear box 402 and the swing frame 712, and the floating gear box 402 and the swing frame 712 are driven to swing synchronously by the synchronous rocker arm 713, so that the two ends of the first upper roller 201 and the second upper roller 202 swing synchronously to ensure uniform compaction of the crop. By limiting the floating path of the first upper roller 201 and the second upper roller 202, collision and interference are avoided when floating in the feeding frame 10, and the friction between the floating gear box 402 and the feeding frame 10 is reduced.

[0048] As shown in Figures 1 and 2, in this embodiment, the tensioning assembly 720 includes a first tension spring arranged on the first side wall of the feeding frame 10 and connected to the floating gear box 402 and the feeding frame 10 respectively, for pulling the floating gear box 402 toward the lower roller assembly 30 to drive the first upper roller 201 to move toward the lower roller assembly 30, and a second tension spring arranged on the second side wall of the feeding frame 10 and connected to the swing frame 712 and the feeding frame 10 respectively, for pulling the swing frame 712 toward the lower roller assembly 30 to drive the first upper roller 201 to move toward the lower roller assembly 30. Specifically, the tension spring 50 includes a first tension spring and a second tension spring, the first tension spring is respectively connected to the floating gear box 402 and the feeding frame 10, and the second tension spring is respectively connected to the swing frame 712 and the feeding frame 10, so as to pull the floating gear box 402 toward the lower roller assembly 30 through the first tension spring to drive the first upper roller 201 to move toward the lower roller assembly 30, and pull the swing frame 712 toward the lower roller assembly 30 through the second tension spring to drive the first upper roller 201 to move toward the lower roller assembly 30, so that both ends of the first upper roller 201 move toward the lower roller assembly 30 at the same time, ensuring uniform compaction of the crop.

[0049] As shown in Figures 1 and 2, in this embodiment, the clamping assembly 730 includes a first compression spring arranged on the first side wall of the feeding frame 10 and connected to the floating gear box 402 and the feeding frame 10 respectively, for pressing the floating gear box 402 to move toward the lower roller assembly 30 to drive the second upper roller 202 to move toward the lower roller assembly 30, and a second compression spring arranged on the second side wall of the feeding frame 10 and connected to the swing frame 712 and the feeding frame 10 respectively, for pressing the swing frame 712 to move toward the lower roller assembly 30 to drive the second upper roller 202 to move toward the lower roller assembly 30. Specifically, the compression spring 60 includes a first compression spring and a second compression spring, the first compression spring is respectively connected to the floating gear box 402 and the feeding frame 10, and the second compression spring is respectively connected to the swing frame 712 and the feeding frame 10, so that the floating gear box 402 is pressed toward the lower roller assembly 30 by the first compression spring to drive the second upper roller 202 to move toward the lower roller assembly 30, and the swing frame 712 is pressed toward the lower roller assembly 30 by the second compression spring to drive the second upper roller 202 to move toward the lower roller assembly 30, so that both ends of the second upper roller 202 move toward the lower roller assembly 30 at the same time, ensuring uniform compaction of the crop.

[0050] The silage harvester of this embodiment includes the aforementioned feeding system. Specifically, by utilizing the feeding system for power transmission, gear meshing and output shaft transmission achieve stable and reliable power transmission, capable of withstanding large alternating loads. Furthermore, the system controls the operation of the harvesting platform and the feeding speed, effectively adjusting the crop cutting length to achieve high uniformity and consistency. Furthermore, a floating assembly 700 is provided to ensure normal harvesting operations even with large crop feed volumes, ensuring feeding uniformity and crop compaction, and improving crop quality and harvesting efficiency.

[0051] As shown in Figures 5 to 9, the silage machine feeding device of this embodiment also includes a pressure mechanism, the feeding roller assembly 600 includes an upper roller assembly 20 and a lower roller assembly 30, the upper roller assembly 20 and the lower roller assembly 30 are arranged relative to each other on the feeding frame 10, and a feeding channel for conveying crops is formed between the upper roller assembly 20 and the lower roller assembly 30; the pressure mechanism includes a clamping assembly 730 and a tensioning assembly 720, the clamping assembly 730 is arranged on the feeding frame 10 and connected to the upper roller assembly 20, the clamping assembly 730 is used to apply pressure to the upper roller assembly 20 toward the lower roller assembly 30, and the pressure of the clamping assembly 730 is adjustable, the tensioning assembly 720 is arranged on the feeding frame 10 and connected to the upper roller assembly 20, the tensioning assembly 720 is used to apply tension to the upper roller assembly 20 in a direction toward the lower roller assembly 30, and the tension of the tensioning assembly 720 is adjustable.

[0052] Specifically, when the crops enter the feeding device, a pressure mechanism is provided so that the magnitude of the pre-pressure generated by the upper roller assembly 20 toward the lower roller assembly 30 can be adjusted, so that the feeding roller assembly 600 can evenly apply pressure to the material, thereby compacting the crops.

[0053] In specific implementation, the lower roller assembly 30 includes a first lower roller 301 and a second lower roller 302 arranged in sequence at the lower part of the feeding frame 10 along the conveying direction of the crop. The tensioning assembly 720 is connected to the first upper roller 201 and is used to adjust the pressure applied by the first upper roller 201 toward the first lower roller 301, thereby compacting the crop. The compacting assembly 730 is connected to the second upper roller 202 and is used to adjust the pulling force applied by the second upper roller 202 toward the second lower roller 302, thereby compacting the crop.

[0054] In summary, by arranging the clamping assembly 730 and the tensioning assembly 720 on the feeding frame 10 to apply pressure to the upper roller assembly 20, the size of the pre-pressure generated by the upper roller assembly 20 toward the lower roller assembly 30 can be adjusted, so that the feeding device can adjust the pre-pressure, so that the feeding roller assembly can apply pressure to the material evenly, thereby improving the chopping quality of the material, improving the quality of the feed, and increasing economic benefits.

[0055] Furthermore, the first upper roller 201 and the second upper roller 202 are arranged in sequence on the feeding frame 10 along the conveying direction of the feeding channel, the first lower roller 301 and the second lower roller 302 are arranged in sequence on the feeding frame 10 along the conveying direction of the feeding channel, the tensioning assembly 720 is connected to the first upper roller 201, and the pressing assembly 730 is connected to the second upper roller 202.

[0056] In this embodiment, the first upper roller 201 is arranged to cooperate with the first lower roller 301, and the second upper roller 202 is arranged to cooperate with the second lower roller 302, so that the crop is compacted multiple times, wherein the first upper roller 201 applies pre-pressure toward the first lower roller 301 under the action of the tensioning component 720, and the crop is preliminarily compacted when the crop passes between the first upper roller 201 and the second upper roller 202, and then the crop passes through the second upper roller 202 and the second lower roller 302 for further compaction. During this process, the tensioning component 720 is connected to the first upper roller 201 and is used to adjust the pressure applied by the first upper roller 201 toward the first lower roller 301, thereby compacting the crop. The compacting component 730 is connected to the second upper roller 202 and is used to adjust the pulling force applied by the second upper roller 202 toward the second lower roller 302, thereby compacting the crop.

[0057] Furthermore, the first upper roller 201 and the second upper roller 202 are distributed in a stepped manner, the first lower roller 301 and the second lower roller 302 are distributed in a stepped manner, and the gap between the second upper roller 202 and the second lower roller 302 is smaller than the gap between the first upper roller 201 and the first lower roller 301.

[0058] In this embodiment, since the first upper roller 201 applies pre-pressure toward the first lower roller 301 under the action of the tensioning component 720, the crop is initially compacted when passing between the first upper roller 201 and the second upper roller 202, and then the crop passes through the second upper roller 202 and the second lower roller 302 under the action of the compacting component 730 and is further compacted. The thickness of the crop after initial compaction is the gap value between the first upper roller 201 and the first lower roller 301. In order to further compact the crop, the gap between the second upper roller 202 and the second lower roller 302 needs to be smaller than the gap between the first upper roller 201 and the first lower roller 301.

[0059] As shown in FIG1 , the first upper roller 201 and the first lower roller 301 are arranged relative to each other on the feeding frame 10 to form relative motion to transport crops. The first upper roller 201 includes a roller body, a plurality of fixed plates evenly distributed circumferentially on the roller body, and feed teeth detachably connected to the fixed plates. The feed tooth plates are arranged at a certain angle to the radial direction of the roller body, and the free side of the feed tooth plates is inclined toward the rotation direction of the roller body. The structure of the first lower roller 301 is the same as that of the first upper roller 201. The fixed plate on the first upper roller 201 is tilted and is consistent with the rotation direction of the first upper roller 201, and is tilted in the clockwise direction. The fixed plate on the first lower roller 301 is also tilted and is consistent with the rotation direction of the first lower roller 301, and is tilted in the counterclockwise direction. The tilted setting of the fixed plate causes the feeding tooth plate installed on the fixed plate 400 to be tilted relative to the roller body. This method of evenly arranging the feeding tooth plate and the roller body at a certain angle around the axis of the roller body can increase the contact area between the feeding tooth plate and the fed crop, thereby improving the feeding capacity of the crop and reducing energy consumption. During the feeding process of the crop, it can avoid the feeding tooth plate from damaging the crop skin, prevent the loss of crop juice, and improve the feed quality.

[0060] Furthermore, the feeding frame 10 is provided with a driving mechanism connected to the feeding roller assembly. The driving mechanism includes a driving member, a fixed gearbox 40 connected to the driving member and used to rotate the first lower roller 301, a universal joint shaft 401 connected to the fixed gearbox 40, and a floating gearbox 402 connected to the universal joint shaft 401 and used to rotate the first upper roller 201. The driving member is a driving motor 110, specifically a hydraulic motor.

[0061] In this embodiment, the driving member is a hydraulic motor for the operation of the remaining fixed gear box 40. The fixed gear box 40 is connected to the first lower roller 301 and drives the first lower roller 301 to rotate clockwise. At the same time, the fixed gear box 40 is also connected to a floating gear box 402 through a universal joint. The floating gear box 402 is used to drive the first upper roller 201 to rotate clockwise. During specific implementation, the floating gear box 402 can float up and down along the height direction of the feeding frame 10 with the first upper roller 201 under the action of the universal joint, so that the feed can be smoothly transmitted between the first upper roller 201 and the first lower roller 301.

[0062] Furthermore, the tensioning assembly 720 includes a tension spring 50, an upper plug 501, a lower plug 502, a mounting plate 503, and a tension spring 50 hook 504. The mounting plate 503 is disposed on the feed frame 10. A first end of the tension spring 50 is connected to the upper plug 501. The tension spring 50 hook 504 includes a screw and a hook hinged to the screw. The screw is threadedly connected to the upper plug 501, and the hook is connected to the floating gear box 402. A second end of the tension spring 50 is connected to the lower plug 502, which is fixedly connected to the mounting plate 503 via bolts. The upper plug 501 is used to rotate and adjust the overlap of the threaded connection with the screw, thereby adjusting the tension applied by the tension spring 50 to the floating gear box 402. The tension spring 50 includes a first tension spring and a second tension spring, respectively located on either side of the feed frame 10.

[0063] In this embodiment, the tension spring 50 is used to apply a compressive force to the first upper roller 201, thereby pulling the first upper roller 201 toward the first lower roller 301. Specifically, by rotating the upper plug 501 to adjust the degree of overlap between the threaded connection with the screw of the hook 504 of the tension spring 50, the deformation of the tension spring 50 is adjusted, thereby adjusting the tension applied by the tension spring 50 on the floating gear box 402, and thus adjusting the tension on the first upper roller 201. The tension spring 50 adopts a plug structure, and the preload of the tension spring 50 is applied to the first upper roller 201 by rotating the upper plug 501 downward.

[0064] Furthermore, both ends of the first upper roller 201 are provided with a floating gearbox 402 and a tensioning assembly 720 connected to the floating gearbox 402. In this embodiment, the tensioning assembly 720 is provided on both sides of the first upper roller 201 so that the tensioning assembly 720 can apply uniform tension to the first upper roller 201.

[0065] Furthermore, the second upper roller 202 is connected to the clamping assembly 730 through the connecting rod seat 102, and the feeding frame 10 is provided with a compression spring cover plate 101 for installing the clamping assembly 730. The clamping assembly 730 includes a compression spring 60, a compression spring sleeve 601, a compression spring bottom plug 602 and a compression spring nut 603. The compression spring sleeve 601 is detachably connected to the compression spring cover plate 101. A threaded column is provided in the compression spring sleeve 601. The compression spring 60 is accommodated in the compression spring sleeve 601 and is sleeved on the threaded column. The compression spring 60 The first end of the compression spring 60 abuts against the bottom of the compression spring sleeve 601, the second end of the compression spring 60 abuts against the compression spring bottom plug 602, the compression spring nut 603 is provided on the side of the compression spring bottom plug 602 away from the compression spring 60 and is threadedly connected to the threaded column, the compression spring nut 603 is driven to rotate and adjusts the distance between the compression spring bottom plug 602 and the compression spring sleeve 601 by threading with the threaded column, and the end of the threaded column extending out of the compression spring sleeve 601 is connected to the connecting rod seat 102 by providing a compression spring 60 hook 604. The compression spring 60 includes a first compression spring and a second compression spring respectively located on both sides of the feeding frame 10.

[0066] In this embodiment, the pull rod seat is connected to the second upper roller 202, and the movement drives the second upper roller 202 to move toward the second lower roller 302. The clamping assembly 730 applies pre-pressure to the second upper roller 202 by connecting with the connecting rod seat 102. Specifically, after the compression spring 60 device is assembled, the compression spring nut 603 welded to the compression spring bottom plug 602 is rotated upward to compress the compression spring 60, thereby pre-pressing the second upper roller 202.

[0067] Furthermore, both ends of the second upper roller 202 are provided with a connecting rod seat 102 and a pressing assembly 730 connected to the connecting rod seat 102. In this embodiment, the connecting rod seat 102 and the pressing assembly 730 connected to the connecting rod seat 102 are provided at both ends of the second upper roller 202, so that the second upper roller 202 can be evenly pressed by the pressing assembly 730.

[0068] The feeding device of this silage machine is powered by an external hydraulic motor, namely the above-mentioned drive motor 110. Power is input to the first lower roller 301 through the fixed gear box 40. The fixed gear box 40 is connected to the universal joint 401 and the floating gear box 402 to transmit power to the first upper roller 201. The first upper roller 201 rotates counterclockwise and the first lower roller 301 rotates clockwise to form a relative motion to transport the crops. During the transportation process, the pressure mechanism applies pressure to the crops to compact them. The pressure mechanism consists of a clamping assembly 730 and a tensioning assembly 720. One end of the tensioning assembly 720 is fixed to the feeding frame 10 by bolts, and the other end is connected to the first upper roller 201 through the tension spring 50 bracket. One end of the clamping assembly 730 is fixed to the feeding frame 10 through the compression spring cover 101, and the other end is connected to the second upper roller 202 through the connecting rod seat 102. When the crop is transported to the feeding, the tension spring 50 applies a downward pulling force to the first upper roller 201, and the compression spring 60 applies a downward pressure to the second upper roller 202, thereby compacting the crop.

[0069] The first upper roller 201 utilizes a tension spring 50, while the second upper roller 202 utilizes a compression spring 60. When material enters the feeding mechanism, the first upper roller 201 applies downward tension to the material using the tension spring 50, while the second upper roller 202 applies downward pressure to the material using the compression spring 60. The tension spring 50 and compression spring 60 are respectively secured to either side of the feeding frame 10 via a connecting rod and a floating gearbox 402. This structure provides continuous and uniform compaction, improving shredding quality. The tension spring 50 utilizes a plug structure, with preload applied by rotating the upper plug 501 downward. The compression spring 60 compresses the second upper roller 202 by rotating the compression spring nut 603 welded to its base upward, compressing the spring 60 and preloading the second upper roller 202.

[0070] Furthermore, a metal detector is installed inside the first upper roller 201 and / or the first lower roller 301. In this embodiment, the metal detector is located in the middle of the first upper roller 201 and / or the first lower roller 301 to inspect the gap between the first upper roller 201 and the first lower roller 301 for any metallic foreign objects. Upon detecting a metallic foreign object, the first upper roller 201 and the first lower roller 301 are quickly controlled to stop rotating. This prevents metallic foreign objects from damaging the first upper roller 201 and the first lower roller 301 and also prevents metallic foreign objects from mixing into feed and causing livestock to accidentally ingest them.

[0071] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A feeding system, characterized in that: include: The feeding transmission structure includes a driving assembly, a first output shaft assembly, a second output shaft assembly, a gear transmission assembly and a feeding device. The output end of the driving assembly is respectively connected to the first output shaft assembly and the second output shaft assembly and is used to transmit power to the first output shaft assembly and the second output shaft assembly respectively. The output end of the first output shaft assembly is used to connect the header assembly to provide working power for the header assembly. The second output shaft assembly is connected to the gear transmission assembly and is used to transmit power to the gear transmission assembly. The output end of the gear transmission assembly is connected to the feeding device and is used to transmit power to the feeding device. The feeding device is used to compact crops and transmit the crops to the chopping device, wherein: The feeding device includes a feeding frame, a feeding roller assembly connected to the output end of the gear transmission assembly, and a pressure mechanism, the feeding roller assembly includes an upper roller assembly and a lower roller assembly, the upper roller assembly and the lower roller assembly are arranged relatively on the feeding frame, and a feeding channel for conveying crops is formed between the upper roller assembly and the lower roller assembly, the pressure mechanism includes a clamping assembly and a tensioning assembly, the clamping assembly is arranged on the feeding frame and connected to the upper roller assembly, the clamping assembly is used to apply pressure to the upper roller assembly in the direction toward the lower roller assembly, and the pressure of the clamping assembly is adjustable, the tensioning assembly is arranged on the feeding frame and connected to the upper roller assembly, the tensioning assembly is used to apply tension to the upper roller assembly in the direction toward the lower roller assembly, and the tension of the tensioning assembly is adjustable.

2. The feeding system according to claim 1, characterized in that The driving assembly includes a driving motor, a driving box connected to the output end of the driving motor, and an emergency stop valve connected to the driving motor. The output end of the driving box is respectively connected to the first output shaft assembly and the second output shaft assembly.

3. The feeding system according to claim 2, characterized in that The first output shaft assembly includes a first power output shaft connected to the output end of the drive box, a first spline shaft connected to the output end of the first power output shaft, and a second power output shaft connected to the output end of the first spline shaft for connecting to a header assembly to provide working power for the header assembly.

4. The feeding system according to claim 2, characterized in that The second output shaft assembly includes a third power output shaft connected to the output end of the drive box, a second spline shaft connected to the output end of the third power output shaft, and a fourth power output shaft respectively connected to the output end of the second spline shaft and the input end of the gear transmission assembly.

5. The feeding system according to claim 1, characterized in that A floating assembly is arranged on the feeding frame and is swingably connected to the output end of the gear transmission assembly and the upper roller assembly respectively, and is used to transmit the power of the gear transmission assembly to the upper roller assembly and make the upper roller assembly float up and down relative to the lower roller assembly according to the feeding amount of the crop to adjust the preset spacing. The upper roller assembly is arranged on the floating assembly.

6. The feeding system according to claim 5, characterized in that The upper roller assembly includes a first upper roller and a second upper roller arranged at intervals along the feeding direction of the crop, and the floating assembly includes a floating member connected to the output end of the gear transmission assembly and respectively connected to the first upper roller and the second upper roller for transmitting power to the first upper roller and the second upper roller, a tensioning assembly connected to the floating member and the feeding frame respectively for pulling the first upper roller to move toward the lower roller assembly, and a pressing assembly connected to the floating member and the feeding frame respectively for pressing the second upper roller to move toward the lower roller assembly.

7. The feeding system according to claim 6, characterized in that The lower roller assembly includes a first lower roller and a second lower roller which are sequentially arranged on the feeding frame along the conveying direction of the feeding channel, the first upper roller and the second upper roller are distributed in a stepped manner, the first lower roller and the second lower roller are distributed in a stepped manner, and the gap between the second upper roller and the second lower roller is smaller than the gap between the first upper roller and the first lower roller.

8. The feeding system according to claim 6, characterized in that The floating member includes a floating gear box swingably arranged on the first side wall of the feeding frame and connected to the output end of the gear transmission assembly, a swing frame swingably arranged on the second side wall of the feeding frame, and a synchronous rocker arm hinged to the feeding frame and with free ends respectively connected to the floating gear box and the swing frame, the first end of the first upper roller is connected to the floating gear box, the second end of the first upper roller is connected to the swing frame, the first end of the second upper roller is connected to the floating gear box, and the second end of the second upper roller is connected to the swing frame.

9. The feeding system according to claim 8, characterized in that The tensioning assembly includes a first tension spring arranged on the first side wall of the feeding frame and connected to the floating gear box and the feeding frame respectively, used to pull the floating gear box toward the lower roller assembly to drive the first upper roller to move toward the lower roller assembly, and a second tension spring arranged on the second side wall of the feeding frame and connected to the swing frame and the feeding frame respectively, used to pull the swing frame toward the lower roller assembly to drive the first upper roller to move toward the lower roller assembly; and / or the clamping assembly includes a first compression spring arranged on the first side wall of the feeding frame and connected to the floating gear box and the feeding frame respectively, used to press the floating gear box toward the lower roller assembly to drive the second upper roller to move toward the lower roller assembly, and a second compression spring arranged on the second side wall of the feeding frame and connected to the swing frame and the feeding frame respectively, used to press the swing frame toward the lower roller assembly to drive the second upper roller to move toward the lower roller assembly.

10. A silage machine, characterized in that: Comprising the feeding system described in any one of claims 1-9.

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