Cutting table of silage harvester and using method

Abstract

The invention relates to a silage harvester header and a using method, and belongs to the technical field of silage harvesting equipment. According to the technical scheme, a grain dividing fork (5) is arranged at the front end of a front feeding roller (2), cutting boards of the front feeding roller (2) and a rear feeding roller (3) are arranged in a crossed and staggered mode, and a split type comb plate (6) is arranged between the front feeding roller and the rear feeding roller; the split type comb plate comprises a front comb plate and a rear comb plate which are detachably connected, the fit clearance between the front comb plate and the rear comb plate can be adjusted, and the working distance between the front comb plate and the rear feeding roller can be changed by adjusting the fit clearance between the front comb plate and the rear comb plate. Therefore, the conveying requirement for cutting of different types of materials is met. The cutting table has the beneficial effects that the split comb plate is adopted, so that material blockage during working of the cutting table is reduced, the comb plate is convenient to replace and maintain, and the working efficiency during harvesting is improved; the feeding device has the characteristics of high feeding efficiency, uniform feeding, efficient and stable conveying and the like.

Description

Technical Field

[0001] The invention relates to a silage harvester cutting table and a use method thereof, which are particularly suitable for small farm operation requirements and belong to the technical field of silage harvesting equipment. Background Art

[0002] The silage harvester is one of the important mechanical equipment in agricultural production, which is used to cut silage crops into appropriate lengths for silage fermentation. The silage harvester header is an important component, which is mounted on the front end of the silage harvester body for use. At present, the domestic large-scale silage harvesting header has a large operating width and cannot meet the operating requirements of small farms. Some small-scale silage harvesting headers are upper transmission inputs with complex structures, and the comb plate cannot be installed, resulting in blockage of the rear feeding roller, low feeding efficiency, high failure rate and other problems, which cannot meet market requirements. Summary of the invention

[0003] The object of the present invention is to provide a silage harvester cutting table and a method of use, which adopts a split comb plate to reduce material blockage when the cutting table is working and improve the work efficiency during harvesting. It has the characteristics of high feeding efficiency, uniform feeding, efficient and stable transportation, etc., and solves the problems existing in the background technology.

[0004] The technical solution of the present invention is: A forage harvester cutting table comprises a front feeding roller, a rear feeding roller, a grass dividing fork and a split comb plate which are arranged on a cutting table frame. A grass dividing fork is arranged at the front end of the front feeding roller, and the knife plates of the front feeding roller and the rear feeding roller are arranged in a cross-staggered manner. A split comb plate is arranged between the front feeding roller and the rear feeding roller. The split comb plate comprises a front comb plate and a rear comb plate, which are detachably connected, and the fitting clearance between the front comb plate and the rear comb plate is adjustable. By adjusting the fitting clearance between the front comb plate and the rear comb plate, the working distance between the front comb plate and the rear feeding roller can be changed, thereby meeting the conveying requirements for cutting different types of materials.

[0005] The front comb tooth plate includes front comb teeth 1, front comb teeth 2, front comb tooth connecting plate 1, front comb tooth connecting plate 2, front guide plate 1 and front guide plate 2. The number of front comb teeth 1 and front comb teeth 2 are both two. Two front comb teeth 1 and two front comb teeth 2 are arranged in parallel. The two front comb teeth 1 are connected by front comb tooth connecting plate 1, and front guide plate 1 is provided between the two front comb teeth 1; the two front comb teeth 2 are connected by front comb tooth connecting plate 2, and front guide plate 2 is provided between the two front comb teeth 2.

[0006] The rear comb tooth plate includes rear comb teeth, a rear comb tooth connecting plate 1, a rear comb tooth connecting plate 2, a rear guide plate and a support column. There are four rear comb teeth, and the four rear comb teeth are arranged in parallel. The front ends of the two upper rear comb teeth are connected by the rear comb tooth connecting plate 1, and the front ends of the two lower rear comb teeth are connected by the rear comb tooth connecting plate 2; the rear ends of the four rear comb teeth are connected by the mortise and tenon joints of the rear guide plate, and the support column passes through the four rear comb teeth and is fixedly connected to the cutting table frame.

[0007] The front comb tooth connecting plate 1 and the front comb tooth connecting plate 2 are both provided with a plurality of circular holes, and the rear comb tooth connecting plate 1 and the rear comb tooth connecting plate 2 are both provided with a plurality of straight slots, the circular holes and the straight slots match each other, the rear comb tooth connecting plate 1 and the rear comb tooth connecting plate 2 are respectively connected with the front comb tooth connecting plate 1 and the front comb tooth connecting plate 2 through the straight slots, circular holes and bolts, and the connecting parts of the front comb tooth plate and the rear comb tooth plate are tangent to each other, so that the material conveying is smoother; when working, by adjusting the corresponding positions of the circular holes and the straight slots, the matching clearance of the front comb tooth connecting plate and the rear comb tooth connecting plate is adjusted, and then the working distance between the front comb tooth plate and the rear feeding roller is changed, so as to meet the conveying requirements for cutting different types of materials.

[0008] The outer sides of the front comb teeth 1 and 2 are provided with fixed ribs, and the front ends of the front comb teeth 1, 2 and the fixed ribs are provided with U-shaped grooves. The two front comb teeth 1 and the fixed ribs are connected to the front guide plate 1 through the U-shaped grooves; the two front comb teeth 2 and the fixed ribs are connected to the front guide plate 2 through the U-shaped grooves.

[0009] A space one is formed between the front guide plate one and the two front comb teeth one, and a space two is formed between the front guide plate two and the two front comb teeth two. The space one and the space two respectively match the blade teeth on the blade corresponding to the front feeding roller; the rear guide plate is arranged close to the side of the rear feeding roller.

[0010] The front comb tooth 1, the front comb tooth 2 and the fixed rib plate are all arc-shaped, and the curvature of the side surfaces is the same, and the width of the front comb tooth 2 is greater than the width of the front comb tooth 1.

[0011] The support column is a cylindrical structure, with threaded holes at both ends of the support column respectively. One end of the support column is connected to the guard cover on the comb plate through bolts, and the other end is fixedly connected to the cutting table frame through bolts.

[0012] The straw dividing fork comprises a straw dividing mounting frame, a straw dividing tip, a straw dividing support frame and a straw dividing guide plate. The straw dividing mounting frame is mounted at the lower end of the front feeding roller. A plurality of straw dividing support frames are arranged at the front end of the straw dividing mounting frame. Each straw dividing support frame is provided with a straw dividing tip. The straw dividing tip is a multi-faceted cone structure. The rear end of the straw dividing tip is connected to the straw dividing guide plate.

[0013] The grass-separating guide plate is a flat-plate structure and can be bent into different angles. When the cutter table is working, the flat-plate grass-separating guide plate can increase the contact area with the material, which can smooth the cut material to a great extent and reduce tipping, so that the material can be transported into the front feed roller more quickly, thereby improving the working efficiency of the cutter table.

[0014] The number of the front feed roller, the rear feed roller and the split comb plate are all two, and they are symmetrically arranged along the center line of the cutting table frame. The center axes of the front feed roller and the rear feed roller are arranged parallel to each other and are vertically set on the cutting table frame.

[0015] The knife plates of the front feeding roller are composed of a feeding knife plate, a corrugated knife plate, a bending knife plate and a disc-type cutting knife plate, and the feeding knife plate, the corrugated knife plate, the bending knife plate and the disc-type cutting knife plate are arranged in sequence from top to bottom.

[0016] The knife plate of the rear feeding roller is composed of a conveying plate, an upper material-diverting tooth plate, a lower material-diverting tooth plate and a bottom-smearing tooth plate. The conveying plate, the upper material-diverting tooth plate, the lower material-diverting tooth plate and the bottom-smearing tooth plate are arranged in sequence from top to bottom, and the knife teeth on the conveying plate, the upper material-diverting tooth plate, the lower material-diverting tooth plate and the bottom-smearing tooth plate are arranged in an up-and-down staggered manner.

[0017] The feeding knife plate, corrugated knife plate, bending knife plate, disc cutting knife plate, conveying plate and bottom tooth plate are all one layer; the upper material stripping tooth plate and the lower material stripping tooth plate are both two layers and are arranged at equal intervals. The feeding knife plate of the front feeding roller is arranged between the two layers of upper material stripping tooth plates and rotates crosswise with the two layers of upper material stripping tooth plates; the corrugated knife plate of the front feeding roller is arranged between the two layers of lower material stripping tooth plates and rotates crosswise with the two layers of lower material stripping tooth plates.

[0018] The harvesting table frame is also provided with a main beam and a straw gatherer. A double-drive gearbox and a guide gearbox are respectively provided under the front feeding roller and the rear feeding roller. The double-drive gearbox and the guide gearbox are both installed on the main beam. The straw gatherer is arranged above the front feeding roller and the rear feeding roller.

[0019] The dual-drive gearbox and the guide gearbox are both provided with a gearbox guard plate, and the gearbox guard plate is connected to the header frame through bolts.

[0020] A transmission shaft is provided on the main beam, and the transmission shaft is connected with a clutch. The vehicle body transmits power to the transmission shaft in the main beam through the clutch. Four transmission bevel gears are installed on the transmission shaft. The four transmission bevel gears are symmetrically distributed along the center line of the cutting table. The four transmission bevel gears are directly connected to the bevel gears on the dual-drive gearbox and the guide gearbox. The transmission shaft directly transmits power to the front feed roller and the rear feed roller through the dual-drive gearbox and the guide gearbox at the same time, and the front feed roller and the rear feed roller realize the same-direction differential rotation.

[0021] The straw gatherer, clutch, guide gearbox and dual transmission gearbox are all well-known and commonly used equipment in the art.

[0022] A method for using a silage harvester cutting table, using the silage harvester cutting table, comprises the following steps: The vehicle body provides power, which is then transmitted to the front feeding roller and the rear feeding roller in sequence. The materials are gathered by the grass dividing fork at the front end of the front feeding roller, which smoothes the cut materials and reduces tipping. The grass dividing guide plate at the rear end of the grass dividing fork cooperates with the feeding blade, corrugated blade, bent blade and disc-type cutting blade to close the high-bar materials through the grass gathering device to prevent the high-bar materials from tilting or falling, so that the front feeding roller can smoothly complete the cutting and conveying. The split comb plate guides the materials conveyed by the front feeding roller evenly and orderly. The upper and lower tooth plates of the rear feeding roller are equidistantly matched every two layers, and they rotate crosswise with the feeding knife plate and corrugated knife plate of the front feeding roller, so that the working gap between the knife plates on the front feeding roller and the rear feeding roller becomes smaller, making the material transportation smoother, thereby reducing the blockage of the material to a greater extent; the bottom tooth plate of the rear feeding roller effectively transports the broken straw, and the material is smoothly sent to the subsequent device through the cooperation of the split comb plate and the rear feeding roller.

[0023] The present invention optimizes and improves the front end grass dividing fork, changes the round tube type of the grass dividing fork tail into a flat plate type of the grass dividing fork tail, increases the contact area, and makes the green fodder straw more smoothly transported; optimizes and upgrades the front feeding roller and the rear feeding roller, reduces the working gap of the knife plates, makes the silage feed fed evenly and orderly, and improves the material feeding process; optimizes the design of the comb plate, adopts a split type, reduces material blockage when the cutting platform is working, facilitates the replacement and maintenance of the comb plate, improves the work efficiency during harvesting, and can adjust the spacing of the comb plates according to the harvesting requirements, so that the cutting platform is more flexible.

[0024] The beneficial effects of the present invention are as follows: a split comb plate is adopted to reduce material blockage during operation of the harvesting platform, facilitate replacement and maintenance of the comb plate, and improve work efficiency during harvesting; the straw separating guide plate at the rear end of the straw separating fork is a flat structure, which increases the contact area and makes the green fodder straw more smoothly transported; the working gap between the knife plates of the front feeding roller and the rear feeding roller is reduced, so that the silage is fed evenly and orderly; it has the characteristics of high feeding efficiency, uniform feeding, efficient and stable transportation, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A top view of the present invention; Figure 2 It is a front view of the present invention; Figure 3 It is a bottom view of the present invention; Figure 4 It is a stereogram of the present invention; Figure 5 for Figure 4 A magnified view of part I; Figure 6 It is a schematic diagram of the structure of the power transmission system of the present invention; Figure 7 This is a schematic diagram of the front feeding roller structure of the present invention; Figure 8 This is a schematic diagram of the rear feeding roller structure of the present invention; Fig. 9 This is a schematic diagram of the material transmission direction of the present invention; Fig.10 This is a schematic diagram of the structure of the grass fork of the present invention; Fig.11 It is a schematic diagram of the structure of the split comb plate of the present invention; Fig.12 It is a schematic diagram of the structure of the rear comb plate of the present invention; Fig.13 It is a schematic diagram of the structure of the front comb teeth of the present invention; Fig.14 This is a schematic diagram of the structure of the second front comb tooth of the present invention; In the figure: main beam 1, front feeding roller 2, feeding blade 2-1, corrugated blade 2-2, bending blade 2-3, disc cutting blade 2-4, rear feeding roller 3, conveying plate 3-1, upper material shifting tooth plate 3-2, lower material shifting tooth plate 3-3, bottom tooth plate 3-4, straw gathering device 4, straw dividing fork 5, straw dividing mounting frame 5-1, straw dividing tip 5-2, straw dividing support frame 5-3, straw dividing guide plate 5-4, split comb tooth plate 6, Front comb teeth 1 6-1, front comb teeth 2 6-2, front comb teeth connecting plate 1 6-3, front comb teeth connecting plate 2 6-4, front guide plate 1 6-5, front guide plate 2 6-6, fixed rib plate 6-7, rear comb teeth 6-8, rear comb teeth connecting plate 1 6-9, rear comb teeth connecting plate 2 6-10, rear guide plate 6-11, support column 6-12, gearbox guard plate 7, clutch 8, guide gearbox 9, dual transmission gearbox 10. DETAILED DESCRIPTION

[0026] The present invention will be further described below by way of examples in conjunction with the accompanying drawings.

[0027] A forage harvester cutting table comprises a front feeding roller 2, a rear feeding roller 3, a dividing fork 5 and a split comb plate 6 which are arranged on a cutting table frame. The front end of the front feeding roller 2 is provided with a dividing fork 5, the knife plates of the front feeding roller 2 and the rear feeding roller 3 are arranged in a cross-staggered manner, and a split comb plate 6 is provided between the front feeding roller 2 and the rear feeding roller 3; the split comb plate 6 comprises a front comb plate and a rear comb plate, the front comb plate and the rear comb plate are detachably connected, and the fitting clearance between the front comb plate and the rear comb plate is adjustable. By adjusting the fitting clearance between the front comb plate and the rear comb plate, the working distance between the front comb plate and the rear feeding roller 3 can be changed, thereby meeting the conveying requirements for cutting different types of materials.

[0028] The front comb tooth plate comprises a front comb tooth 1 6-1, a front comb tooth 2 6-2, a front comb tooth connecting plate 1 6-3, a front comb tooth connecting plate 2 6-4, a front guide plate 1 6-5 and a front guide plate 2 6-6. The number of the front comb tooth 1 6-1 and the front comb tooth 2 6-2 are both two. The two front comb teeth 1 6-1 and the two front comb teeth 2 6-2 are arranged in parallel. The two front comb teeth 1 6-1 are connected by the front comb tooth connecting plate 1 6-3, and a front guide plate 1 6-5 is provided between the two front comb teeth 1 6-1; the two front comb teeth 2 6-2 are connected by the front comb tooth connecting plate 2 6-4, and a front guide plate 2 6-6 is provided between the two front comb teeth 2 6-2.

[0029] The rear comb tooth plate includes rear comb teeth 6-8, rear comb tooth connecting plate 1 6-9, rear comb tooth connecting plate 2 6-10, rear guide plate 6-11 and support column 6-12. The number of rear comb teeth 6-8 is four, and the four rear comb teeth 6-8 are arranged in parallel. The front ends of the upper two rear comb teeth 6-8 are connected by the rear comb tooth connecting plate 1 6-9, and the front ends of the lower two rear comb teeth 6-8 are connected by the rear comb tooth connecting plate 2 6-10; the rear ends of the four rear comb teeth 6-8 are connected by mortise and tenon joints of the rear guide plate 6-11, and the support column 6-12 passes through the four rear comb teeth 6-8 and is fixedly connected to the cutting table frame.

[0030] The front comb tooth connecting plate 1 6-3 and the front comb tooth connecting plate 2 6-4 are both provided with a plurality of circular holes, and the rear comb tooth connecting plate 1 6-9 and the rear comb tooth connecting plate 2 6-10 are both provided with a plurality of straight slots, the circular holes and the straight slots match each other, the rear comb tooth connecting plate 1 6-9 and the rear comb tooth connecting plate 2 6-10 are respectively connected to the front comb tooth connecting plate 1 6-3 and the front comb tooth connecting plate 2 6-4 through straight slots, circular holes and bolts, and the connecting parts of the front comb tooth plate and the rear comb tooth plate are tangent to each other, so that material transportation is smoother; during operation, the matching clearance of the front comb tooth connecting plate and the rear comb tooth connecting plate is adjusted by adjusting the corresponding positions of the circular holes and the straight slots, thereby changing the working distance between the front comb tooth plate and the rear feeding roller 3, thereby meeting the transportation requirements for cutting different types of materials.

[0031] The outer sides of the front comb teeth 1 6-1 and the front comb teeth 2 6-2 are provided with fixed ribs 6-7, and the front ends of the front comb teeth 1 6-1, the front comb teeth 2 6-2 and the fixed ribs 6-7 are provided with U-shaped grooves. The two front comb teeth 1 6-1 and the fixed ribs 6-7 are connected to the front guide plate 1 6-5 through the U-shaped grooves; the two front comb teeth 2 6-2 and the fixed ribs 6-7 are connected to the front guide plate 2 6-6 through the U-shaped grooves.

[0032] A space 1 is formed between the front guide plate 1 6-5 and the two front comb teeth 1 6-1, and a space 2 is formed between the front guide plate 2 6-6 and the two front comb teeth 2 6-2. The space 1 and the space 2 respectively match the blade teeth on the blade corresponding to the front feeding roller 2; the rear guide plate 6-11 is arranged close to the side of the rear feeding roller 3.

[0033] The front comb tooth 1 6 - 1 , the front comb tooth 2 6 - 2 and the fixed rib plate 6 - 7 are all arc-shaped, and the curvature of the side surfaces is the same, and the width of the front comb tooth 2 6 - 2 is greater than the width of the front comb tooth 1 6 - 1 .

[0034] The support column 6-12 is a cylindrical structure, and threaded holes are respectively provided at both ends of the support column 6-12. One end of the support column 6-12 is connected to the guard cover on the comb plate by bolts, and the other end is fixedly connected to the cutting table frame by bolts.

[0035] The straw dividing fork 5 comprises a straw dividing mounting frame 5-1, a straw dividing tip 5-2, a straw dividing support frame 5-3 and a straw dividing guide plate 5-4. The straw dividing mounting frame 5-1 is mounted at the lower end of the front feeding roller 2. A plurality of straw dividing support frames 5-3 are arranged at the front end of the straw dividing mounting frame 5-1. Each straw dividing support frame 5-3 is provided with a straw dividing tip 5-2. The straw dividing tip 5-2 is a multi-faceted cone structure. The rear end of the straw dividing tip 5-2 is connected to the straw dividing guide plate 5-4.

[0036] The grass dividing guide plate 5-4 is a flat plate structure, which can be bent into different angles. When the cutter is working, the flat plate grass dividing guide plate can increase the contact area with the material, which can smooth the cut material to a great extent, reduce tipping, and transport the material into the front feed roller more quickly, thereby improving the working efficiency of the cutter.

[0037] The number of the front feed roller 2, the rear feed roller 3 and the split comb plate 6 are two, and they are symmetrically arranged along the center line of the cutting table frame. The center axes of the front feed roller 2 and the rear feed roller 3 are arranged parallel to each other and are vertically set on the cutting table frame.

[0038] The knife plates of the front feeding roller 2 are composed of a feeding knife plate 2-1, a corrugated knife plate 2-2, a bending knife plate 2-3 and a disc-type cutting knife plate 2-4, and the feeding knife plate 2-1, the corrugated knife plate 2-2, the bending knife plate 2-3 and the disc-type cutting knife plate 2-4 are arranged in sequence from top to bottom.

[0039] The knife plate of the rear feeding roller 3 is composed of a conveying plate 3-1, an upper material-diverting tooth plate 3-2, a lower material-diverting tooth plate 3-3 and a bottom tooth plate 3-4, and the conveying plate 3-1, the upper material-diverting tooth plate 3-2, the lower material-diverting tooth plate 3-3 and the bottom tooth plate 3-4 are arranged in sequence from top to bottom, and the knife teeth on the conveying plate 3-1, the upper material-diverting tooth plate 3-2, the lower material-diverting tooth plate 3-3 and the bottom tooth plate 3-4 are arranged in an up-down staggered manner.

[0040] The feeding knife plate 2-1, the corrugated knife plate 2-2, the bending knife plate 2-3, the disc cutting knife plate 2-4, the conveying plate 3-1 and the bottom tooth plate 3-4 are all one layer; the upper material-diverting tooth plate 3-2 and the lower material-diverting tooth plate 3-3 are both two layers and are arranged at equal intervals. The feeding knife plate 2-1 of the front feeding roller 2 is arranged between the two layers of upper material-diverting tooth plates 3-2 and rotates crosswise with the two layers of upper material-diverting tooth plates 3-2; the corrugated knife plate 2-2 of the front feeding roller 2 is arranged between the two layers of lower material-diverting tooth plates 3-3 and rotates crosswise with the two layers of lower material-diverting tooth plates 3-3.

[0041] The harvesting table frame is also provided with a main beam 1 and a straw gatherer 4. A dual-drive gearbox 10 and a guide gearbox 9 are respectively provided under the front feeding roller 2 and the rear feeding roller 3. The dual-drive gearbox 10 and the guide gearbox 9 are both installed on the main beam 1; the straw gatherer 4 is arranged above the front feeding roller 2 and the rear feeding roller 3.

[0042] The dual-drive gearbox 10 and the guide gearbox 9 are both provided with a gearbox guard plate 7, and the gearbox guard plate 7 is connected to the header frame by bolts.

[0043] A transmission shaft is provided on the main beam 1, and the transmission shaft is connected with the clutch 8. The vehicle body transmits power to the transmission shaft in the main beam 1 through the clutch 8. Four transmission bevel gears are installed on the transmission shaft. The four transmission bevel gears are symmetrically distributed along the center line of the cutting platform. The four transmission bevel gears are directly connected to the bevel gears on the dual transmission gearbox 10 and the guide gearbox 9. The transmission shaft directly transmits power to the front feeding roller 2 and the rear feeding roller 3 through the dual transmission gearbox 10 and the guide gearbox 9 at the same time, and the front feeding roller 2 and the rear feeding roller 3 realize the same-direction differential rotation.

[0044] A method for using a silage harvester cutting table, using the silage harvester cutting table, comprises the following steps: The vehicle body provides power, and transmits the power to the front feeding roller 2 and the rear feeding roller 3 in turn; the materials are gathered by the dividing fork 5 at the front end of the front feeding roller 2, and the cut materials are smoothed to reduce tipping; the dividing guide plate 5-4 at the rear end of the dividing fork cooperates with the feeding blade 2-1, the corrugated blade 2-2, the bending blade 2-3 and the disc-type cutting blade 2-4, and the high-stem materials are closed by the gathering device 4 to prevent the high-stem materials from tilting and tilting, so that the front feeding roller 2 can smoothly complete the cutting and conveying; the split comb plate 6 evenly and orderly combs the materials conveyed by the front feeding roller 2 The upper tooth plate 3-2 and the lower tooth plate 3-3 of the rear feeding roller 3 are equidistantly matched every two layers, and cross-rotate with the feeding knife plate 2-1 and the corrugated knife plate 2-2 of the front feeding roller 2, so that the working gap between the knife plates on the front feeding roller 2 and the rear feeding roller 3 becomes smaller, and the material transportation is smoother, thereby reducing the blockage of the material to a greater extent; the bottom tooth plate 3-4 of the rear feeding roller 3 effectively transports the broken straw, and the material is smoothly sent to the subsequent device through the cooperation of the split comb plate 6 and the rear feeding roller 3.

[0045] In the present embodiment, a forage harvester cutting table comprises a main beam 1, a front feed roller 2, a rear feed roller 3, a straw gatherer 4, a straw dividing fork 5 and a split comb plate 6 mounted on a cutting table frame. The front end of the front feed roller 2 is provided with an angle-adjustable straw dividing fork 5, and the rear end of the straw dividing fork adopts a comb-like distribution, and the straw dividing tip 5-2 of the straw dividing fork 5 is a multi-faceted cone structure; the blades of the front feed roller 2 and the rear feed roller 3 rotate crosswise; a detachable split comb plate 6 is provided between the front feed roller 2 and the rear feed roller 3; a power source directly provides power for the front feed roller 2 and the rear feed roller 3.

[0046] The vehicle body transmits power to the transmission shaft in the main beam 1 through the clutch 8. The dual-drive gearbox 10 and the guide gearbox 9 of the front feeding roller 2 and the rear feeding roller 3 are directly installed on the main beam 1. The transmission shaft directly transmits power to the front feeding roller 2 and the rear feeding roller 3 through the dual-drive gearbox 10 and the guide gearbox 9 at the same time, thereby reducing power loss and making effective use of power; the front feeding roller 2 and the rear feeding roller 3 realize differential rotation in the same direction; the dual-drive gearbox 10 and the guide gearbox 9 at the lower ends of the front feeding roller 2 and the rear feeding roller 3 are both provided with a gearbox guard plate 7, which is fitted with the dual-drive gearbox 10 by bending and completely covers the dual-drive gearbox as a whole to increase the protection area. The gearbox guard plate 7 is connected to the cutting table frame by bolts. When the cutting table works on a relatively poor ground such as a mountain or a hill, the dual-drive gearbox 10 of the cutting table can be prevented from being damaged, so that the gearbox is effectively protected.

[0047] The number of the front feeding roller 2, the rear feeding roller 3 and the split comb plate 6 are two, and they are symmetrically distributed along the center line of the cutting table frame. The central axes of the front feeding roller 2 and the rear feeding roller 3 are arranged parallel to each other and are vertically arranged on the cutting table frame; the front comb plate of the split comb plate 6 is arranged between the front feeding roller 2 and the rear feeding roller 3, and the rear comb plate is arranged close to the outer side of the rear feeding roller 3; the knife plate of the front feeding roller 2 is arranged in sequence from top to bottom by a layer of feeding knife plate 2-1, a layer of corrugated knife plate 2-2, a layer of bending knife plate 2-3 and a layer of disc cutting knife plate 2-4; the knife plate of the rear feeding roller 3 is arranged in sequence from top to bottom by a layer of conveying plate 3-1, two layers of upper material shifting tooth plates 3-2, two layers of lower material shifting tooth plates 3-3 and a layer of bottoming tooth plate 3-4, and the knife teeth on the knife plate are arranged in staggered positions up and down.

[0048] The four layers of material-moving tooth plates of the rear feeding roller 3 are arranged equidistantly according to the upper two layers and the lower two layers respectively, and the middle distance between every two layers crosses with the feeding knife plate 2-1 and the corrugated knife plate 2-2 of the front feeding roller 2. The corrugated knife plate 2-2 can effectively cut crops in different conditions, reduce the vibration of the knife plate, and improve the stability of the roller rotation; the cross-rotation can make the relative gap between the working knife plates of the front feeding roller 2 and the rear feeding roller 3 smaller, which is not only conducive to the uniform and orderly transportation of materials and avoids blockage, but also greatly improves the overall working efficiency of the cutting table.

[0049] The straw dividing fork 5 comprises a straw dividing mounting frame 5-1, a straw dividing tip 5-2, a straw dividing support frame 5-3 and a straw dividing guide plate 5-4. The straw dividing mounting frame 5-1 is mounted on the cutting table frame at the lower end of the front feeding roller 2 by bolts. A plurality of mounting holes are provided at the front end of the straw dividing mounting frame 5-1, and a straw dividing support frame 5-3 is installed in each mounting hole. The straw dividing tip 5-2 is fixed on the straw dividing support frame 5-3. The straw dividing tip 5-2 is a multi-faceted cone structure. The rear end of the straw dividing guide plate 5-4 adopts a flat plate type and is connected to the straw dividing tip 5-2 at different angles by bending. When the cutting table is working, the straw dividing guide plate 5-4 can increase the contact area with the material, can smooth the cut material to a great extent, reduce the dumping, and make the material more quickly transported into the front feeding roller, thereby improving the working efficiency of the cutting table.

[0050] The split comb tooth plate 6 includes a front comb tooth plate and a rear comb tooth plate, the front comb tooth plate includes a front comb tooth 1 6-1, a front comb tooth 2 6-2, a front comb tooth connecting plate 1 6-3, a front comb tooth connecting plate 2 6-4, a front guide plate 1 6-5, a front guide plate 2 6-6 and a fixed rib plate 6-7, the rear comb tooth plate includes a rear comb tooth 6-8, a rear comb tooth connecting plate 1 6-9, a rear comb tooth connecting plate 2 6-10, a rear guide plate 6-11 and a support column 6-12; one end of the front comb tooth 1 6-1, the front comb tooth 2 6-2 and the fixed rib plate 6-7 are all provided with an open U-shaped groove, the two front comb teeth 1 6-1 are assembled by the front guide plate 1 6-5 and the fixed rib plate 6-7 through the open U-shaped groove, and the two front comb teeth 1 6-6- 1 is arranged in parallel, the two front comb teeth 6-2 are assembled through the front guide plate 6-6 and the fixed rib plate 6-7 through the open U-shaped groove, and the two front comb teeth 6-2 are arranged in parallel; the number of the rear comb teeth 6-8 is four, and the rear comb teeth 6-8 are fixed with the rear guide plate 6-11 by mortise and tenon joints at different heights, and then reinforced by welding. The four rear comb teeth 6-8 are arranged in parallel and fixed to the cutting table frame by the support column 6-12; the rear guide plate 6-11 is connected and fixed to the cutting table frame by bolts. By adopting the split comb tooth plate 6, the material can be transported efficiently and stably, and the material can be effectively prevented from being blocked, thereby improving the feeding efficiency.

[0051] The front comb teeth 1 6-1, the front comb teeth 2 6-2 and the rear comb teeth 6-8 are all provided with circular holes, the number of circular holes of the front comb teeth 1 6-1 and the front comb teeth 2 6-2 is one, and the number of circular holes of the rear comb teeth 6-8 is two, which can not only reduce the counterweight of the comb teeth, but also save materials and reduce costs; the front comb teeth connecting plate 1 6-3 and the front comb teeth connecting plate 2 6-4 are both provided with two circular holes, and the rear comb teeth connecting plate 1 6-9 and the rear comb teeth connecting plate 2 6-10 are both provided with two straight notches, the circular holes of the front comb teeth plate and the straight notches of the rear comb teeth plate are connected and fixed with bolts, the position of the bolts in the straight notches is adjustable, and the connecting parts of the front comb teeth plate and the rear comb teeth plate are tangent, thereby making material transportation smoother; during operation, the matching clearance of the front comb teeth connecting plate and the rear comb teeth connecting plate is adjusted, thereby changing the working distance between the front comb teeth plate and the rear feeding roller 3, thereby meeting the transportation requirements for cutting different types of materials.

[0052] The front comb tooth 1 6-1, the front comb tooth 2 6-2 and the fixed rib plate 6-7 are all designed in an arc shape, and the outer curvature is the same. Due to the different diameters of the front feeding roller blades, the outer side of the front comb tooth 2 6-2 is arranged with an additional portion compared to the outer side of the front comb tooth 1 6-1.

[0053] The support column 6-12 is a cylindrical structure, and threaded holes are respectively provided at both ends of the support column. One end is connected and fixed to the guard cover on the comb plate by bolts, and the other end is connected and fixed to the cutting table frame by bolts.

[0054] The power transmission route of the present invention is as follows: the vehicle body provides power, and the power is transmitted to the front feeding roller 2 and the rear feeding roller 3 in sequence.

[0055] The specific transmission route is: the cutting platform is combined with the vehicle body through a suspension mechanism, the vehicle body transmits the power to the clutch 8 through a chain drive, and transmits the power to the transmission shaft in the main beam 1. Four transmission bevel gears are installed on the transmission shaft and are symmetrically distributed along the center line of the cutting platform. The four transmission bevel gears are directly connected to the bevel gears on the dual-drive gearbox 10 and the guide gearbox 9, and the working speed of the front feed roller 2 and the rear feed roller 3 is adjusted through the gearbox.

[0056] The material feeding process of the present invention is as follows: the machine body keeps a certain distance between the cutting platform and the ground through a suspension mechanism, the material is guided and transported through the grass dividing fork 5 at the front end of the cutting platform, the material is cut by the high-speed rotating knife plate of the front feeding roller 2, and is gathered and transported, so that the material is evenly and orderly fed into the subsequent device along the central channel through the rear feeding roller 3.

[0057] The specific material conveying process is as follows: the material is first gathered by the grass dividing fork 5 at the front end of the cutting platform to smooth the cut material and reduce tipping. The grass dividing guide plate 5-4 at the rear end of the grass dividing fork cooperates with the feeding blade 2-1, the corrugated blade 2-2, the bending blade 2-3 and the disc cutting blade 2-4. Some high-stem materials are gathered by the grass gathering device 4 to prevent the high-stem materials from tilting or tilting, so that the front feeding roller 2 can smoothly complete the cutting and conveying. The split comb plate 6 guides the material conveyed by the front feeding roller 2 evenly and orderly to prevent the material from piling up or tipping over. Since the upper tooth plate 3-2 and the lower tooth plate 3-3 of the rear feeding roller 3 are equidistantly matched every two layers, they form a cross rotation with the feeding knife plate 2-1 and the corrugated knife plate 2-5 of the front feeding roller 2, so that the working gap between the knife plates on the front feeding roller 2 and the rear feeding roller 3 becomes smaller, and the material transportation is smoother, thereby reducing the material blockage to a greater extent. The lower tooth plate 3-4 of the rear feeding roller 3 can effectively transport some broken straws, and the material is smoothly sent to the subsequent device through the cooperation of the split comb plate 6 and the rear feeding roller 3.

[0058] The innovative points of the present invention are as follows: ① The power is transmitted from the vehicle body to the main shaft in the beam through the clutch, and the dual-drive gearbox and the guide gearbox under the front feeding roller and the rear feeding roller are directly connected to the beam (the power source is directly transmitted to the front feeding roller and the rear feeding roller to realize coaxial dual-speed transmission), reducing power loss and improving transmission efficiency; ② The knife plates of the front feeding roller and the rear feeding roller realize cross-rotation, and every two layers of the material-dividing tooth plates of the rear feeding roller respectively wrap the feeding knife plate and the corrugated knife plate of the front feeding roller to rotate, so that the material cutting is more uniform and the material loss rate is reduced; ③ The grain-dividing fork tail of the grain-dividing fork is improved (the original grain-dividing fork tail is in the shape of a round tube, and the contact area with the material is small), and the grain-dividing fork tail is designed as a grain-dividing guide Plate, according to the feeding situation, bend the grass-dividing guide plate at different angles to increase the contact area with the material, and feed the material into the front feeding roller quickly and efficiently; ④ Optimize the comb plate (the original comb plate is an integral type, which is troublesome to disassemble and repair and the gap cannot be adjusted). Since the front comb plate enters more materials and is relatively frequent, the wear of the front comb plate is relatively large. The comb plate is designed to be split, which is convenient for maintenance and replacement of the front comb plate. Since the connection of the rear comb plate adopts a straight groove, the distance between the front comb plate and the rear feeding roller can be adjusted according to the type of crop, so that the feeding efficiency is effectively improved; the front comb plate is connected and fixed to the rear comb plate by bolts, and the rear comb plate is set and fixed to the cutting table frame through the support column.

Claims

1. A silage harvester header, characterized in that: The invention comprises a front feeding roller (2), a rear feeding roller (3), a grain dividing fork (5) and a split comb tooth plate (6) arranged on a cutting table frame. The front end of the front feeding roller (2) is provided with a grain dividing fork (5). The knife plates of the front feeding roller (2) and the rear feeding roller (3) are arranged in a staggered manner. A split comb tooth plate (6) is provided between the front feeding roller (2) and the rear feeding roller (3). The split comb tooth plate (6) comprises a front comb tooth plate and a rear comb tooth plate. The front comb tooth plate and the rear comb tooth plate are detachably connected. The fitting clearance between the front comb tooth plate and the rear comb tooth plate is adjustable. By adjusting the fitting clearance between the front comb tooth plate and the rear comb tooth plate, the working distance between the front comb tooth plate and the rear feeding roller (3) can be changed, thereby meeting the conveying requirements for cutting different types of materials.

2. The silage harvester header according to claim 1, characterized in that: The front comb tooth plate comprises front comb teeth one (6-1), front comb teeth two (6-2), front comb teeth connecting plate one (6-3), front comb teeth connecting plate two (6-4), front guide plate one (6-5) and front guide plate two (6-6). The number of front comb teeth one (6-1) and front comb teeth two (6-2) is two. The two front comb teeth one (6-1) and the two front comb teeth two (6-2) are arranged in parallel. The two front comb teeth one (6-1) are connected by the front comb teeth connecting plate one (6-3). The front guide plate one (6-5) is provided between the two front comb teeth one (6-1); the two front comb teeth two (6-2) are connected by the front comb teeth connecting plate two (6-4). The front guide plate two (6-6) is provided between the two front comb teeth two (6-2).

3. The silage harvester header according to claim 2, characterized in that: The rear comb tooth plate comprises rear comb teeth (6-8), a rear comb tooth connecting plate 1 (6-9), a rear comb tooth connecting plate 2 (6-10), a rear guide plate (6-11) and a support column (6-12). The number of the rear comb teeth (6-8) is four. The four rear comb teeth (6-8) are arranged in parallel. The front ends of the two upper rear comb teeth (6-8) are connected through the rear comb tooth connecting plate 1 (6-9), and the front ends of the two lower rear comb teeth (6-8) are connected through the rear comb tooth connecting plate 2 (6-10); the rear ends of the four rear comb teeth (6-8) are connected by mortise and tenon joints through the rear guide plate (6-11), and the support column (6-12) passes through the four rear comb teeth (6-8) and is fixedly connected to the cutting table frame.

4. The silage harvester header according to claim 3, characterized in that: The front comb tooth connecting plate 1 (6-3) and the front comb tooth connecting plate 2 (6-4) are both provided with a plurality of circular holes, and the rear comb tooth connecting plate 1 (6-9) and the rear comb tooth connecting plate 2 (6-10) are both provided with a plurality of straight slots, the circular holes and the straight slots matching each other, the rear comb tooth connecting plate 1 (6-9) and the rear comb tooth connecting plate 2 (6-10) are respectively connected to the front comb tooth connecting plate 1 (6-3) and the front comb tooth connecting plate 2 (6-4) through the straight slots, the circular holes and the bolts, and the connecting parts of the front comb tooth plates and the rear comb tooth plates are tangent, so that the material conveying is smoother.

5. The silage harvester header according to claim 1 or 2, characterized in that: The straw dividing fork (5) comprises a straw dividing mounting frame (5-1), a straw dividing tip (5-2), a straw dividing support frame (5-3) and a straw dividing guide plate (5-4); the straw dividing mounting frame (5-1) is mounted on the lower end of the front feeding roller (2); a plurality of straw dividing support frames (5-3) are provided at the front end of the straw dividing mounting frame (5-1); each straw dividing support frame (5-3) is provided with a straw dividing tip (5-2); the straw dividing tip (5-2) is a multi-faceted pyramid structure; the rear end of the straw dividing tip (5-2) is connected to the straw dividing guide plate (5-4).

6. A silage harvester header according to claim 1 or 2, characterized in that: The number of the front feed roller (2), the rear feed roller (3) and the split comb plate (6) are all two, and they are symmetrically arranged along the center line of the cutting table frame. The center axes of the front feed roller (2) and the rear feed roller (3) are arranged parallel to each other and are vertically arranged on the cutting table frame.

7. A silage harvester header according to claim 1 or 2, characterized in that: The knife plates of the front feeding roller (2) are composed of a feeding knife plate (2-1), a corrugated knife plate (2-2), a bending knife plate (2-3) and a disc-type cutting knife plate (2-4), and the feeding knife plate (2-1), the corrugated knife plate (2-2), the bending knife plate (2-3) and the disc-type cutting knife plate (2-4) are arranged in sequence from top to bottom.

8. The silage harvester header according to claim 1 or 2, characterized in that: The knife plate of the rear feeding roller (3) is composed of a conveying plate (3-1), an upper material-diverting tooth plate (3-2), a lower material-diverting tooth plate (3-3) and a bottom-smearing tooth plate (3-4); the conveying plate (3-1), the upper material-diverting tooth plate (3-2), the lower material-diverting tooth plate (3-3) and the bottom-smearing tooth plate (3-4) are arranged in sequence from top to bottom, and the knife teeth on the conveying plate (3-1), the upper material-diverting tooth plate (3-2), the lower material-diverting tooth plate (3-3) and the bottom-smearing tooth plate (3-4) are arranged in an up-down staggered manner.

9. A forage harvester header according to claim 1 or 2, characterized in that: The cutting table frame is also provided with a main beam (1) and a crop gatherer (4); a dual-drive gearbox (10) and a guide gearbox (9) are respectively provided below the front feeding roller (2) and the rear feeding roller (3); the dual-drive gearbox (10) and the guide gearbox (9) are both mounted on the main beam (1); the crop gatherer (4) is arranged above the front feeding roller (2) and the rear feeding roller (3); the dual-drive gearbox (10) and the guide gearbox (9) are both provided with a gearbox guard plate (7); the gearbox guard plate (7) is connected to the cutting table frame by bolts.

10. A method for using a forage harvester header, using the forage harvester header according to any one of claims 1 to 9, characterized in that The following steps are included: The vehicle body provides power, which is transmitted to the front feeding roller (2) and the rear feeding roller (3) in sequence; the materials are gathered by the dividing fork (5) at the front end of the front feeding roller (2), the cut materials are smoothed and tipping is reduced; the dividing guide plate (5-4) at the rear end of the dividing fork cooperates with the feeding blade (2-1), the corrugated blade (2-2), the bending blade (2-3) and the disc-type cutting blade (2-4), and the high-bar materials are gathered by the gathering device (4), so as to prevent the high-bar materials from tilting or tilting, so that the front feeding roller (2) can smoothly complete the cutting and conveying; the split comb plate (6) evenly and orderly distributes the materials conveyed by the front feeding roller (2) The upper material-dispensing tooth plate (3-2) and the lower material-dispensing tooth plate (3-3) of the rear feeding roller (3) are equidistantly matched every two layers, and cross-rotate with the feeding knife plate (2-1) and the corrugated knife plate (2-2) of the front feeding roller (2), so that the working gap between the knife plates on the front feeding roller (2) and the rear feeding roller (3) becomes smaller, so that the material conveying is smoother, thereby reducing the material blockage to a greater extent; the bottom tooth plate (3-4) of the rear feeding roller (3) effectively conveys the broken straw, and the material is smoothly conveyed to the subsequent device through the cooperation of the split comb tooth plate (6) and the rear feeding roller (3).

Images