Header of silage harvester for both king grass and alfalfa

Abstract

The utility model discloses a header of a silage harvester for both king grass and alfalfa. The header comprises a rack, a cutter, a cone pulley type conveyor, a spiral auger, a shifting tooth sleeve and a rack plastic sheet. The cutter is fixedly connected to the lower end of the cone pulley type conveyor through a bolt; the cone pulley type conveyor is arranged at the front end of the machine frame through a frame structure, three layers and six columns of shifting teeth are arranged on the cone pulley type conveyor, and the shifting tooth sleeves are arranged on all the columns of shifting teeth in a sleeving mode through bolts. The spiral auger is installed on the rear side of the machine frame through a bearing and a bearing seat, four rows of racks are evenly arranged on the left side of the spiral auger in the circumferential direction, and rack plastic pieces are installed on the racks through bolts. According to the header, the king grass and the alfalfa can be harvested only by disassembling and assembling the shifting tooth sleeve and the rack plastic sheet, cutting and conveying are smooth, and the harvesting quality is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of silage harvesting machinery, and in particular relates to a cutting platform of a silage harvester for both royal grass and alfalfa. Background Art

[0002] Animal husbandry is an important part of my country's agricultural economy. Forage is the material basis for the development of herbivorous animal husbandry. King grass and alfalfa are two high-quality forage sources. King grass is a tall grass of the Gramineae family, growing in clusters and tillers, with a plant height of 1.5 to 3 meters; alfalfa is a short-stemmed leguminous forage with strong stem toughness, small petioles, and a plant height of 0.3 to 1 meter. King grass and alfalfa have very different growth characteristics. At present, two types of harvesting platforms are needed for harvesting in agricultural production. In order to reduce farmers' capital investment, increase the utilization rate of agricultural machinery, and expand the scale of high-quality forage production, it is necessary to develop a king grass and alfalfa silage harvester harvester. Utility Model Content

[0003] In order to solve the problem that the king grass alfalfa harvesting machinery is not universal, the utility model provides a king grass alfalfa and silage harvesting machine cutting table.

[0004] The technical solution of the utility model is as follows:

[0005] A cutting table of a silage harvester for both king grass and alfalfa comprises a frame, a cutter, a tower conveyor, a spiral auger, a gear sleeve and a rack plastic sheet. The cutter is fixedly connected to the lower end of the tower conveyor by bolts; the tower conveyor is arranged at the front end of the frame by a frame structure, and 3 layers and 6 rows of gears are arranged on the tower conveyor, and 6 gear sleeves are respectively sleeved on the 6 rows of gears by bolts; the spiral auger is installed on the rear side of the frame by a bearing and a bearing seat, and racks are evenly arranged on the left side of the spiral auger along the circumference, and 4 rack plastic sheets are respectively installed on 4 rows of racks by bolts.

[0006] Preferably, the king grass cutter consists of a circular knife disc and 10 curved machetes.

[0007] Preferably, one side of the shifting teeth of the tower wheel conveyor is straight and the other side is curved.

[0008] Preferably, the inner wall shape of the gear shifting sleeve is the same as the shape of the gear shifting teeth of the tower wheel conveyor. The total length of the gear shifting sleeve is 260 mm, and the three gear shifting teeth in one row can be completely covered therein.

[0009] Preferably, bolt holes are provided on both wings of the gear shifting sleeve, and the gear shifting sleeve can be fixed to each row of gear shifting teeth of the tower wheel conveyor by bolts.

[0010] Preferably, the length and width of the rack plastic sheet are the same as those of the rack on the spiral auger, and the shape is also serrated, but the side of the rack plastic sheet is a right-angled triangle with a height of 20 mm and a base and rack width of 50 mm.

[0011] Preferably, all the saw teeth on the rack plastic sheet are rounded.

[0012] Preferably, bolt holes are provided on the rack plastic sheet, and the rack plastic sheet can be fixed to each rack of the spiral auger by bolts.

[0013] Preferably, the gear shift sleeve and the rack plastic sheet are both made of nylon.

[0014] The beneficial effects of adopting the above technical solution are:

[0015] 1. When harvesting tall grass forage grass, the cutter can cut the grass stems evenly, the teeth on the tower conveyor can transport the cut grass stems to the middle of the cutting table, the blades of the spiral auger can continue to transport the grass stems in the middle of the cutting table to the left side of the cutting table, and the rack on the left side of the auger can continue to feed the stems to the device behind the cutting table.

[0016] 2. When harvesting short-stemmed leguminous forage alfalfa, the process is the same as that of harvesting king grass. You only need to install the tooth sleeve and the rack plastic sheet in the corresponding position. The tooth sleeve covers each row of teeth, and the rack plastic sheet is installed on the rack. This can prevent the alfalfa leaves from being hit by the teeth and the rack multiple times, preventing large leaf loss, and also preventing the tough alfalfa stems from being entangled between the teeth and the rack.

[0017] 3. The cutter can harvest both king grass and alfalfa by simply disassembling the tooth sleeve and the rack plastic sheet: when harvesting king grass, use the cutter, tower wheel conveyor and auger to cut and feed the king grass; when harvesting alfalfa, put the tooth sleeve on the tooth and install the rack plastic sheet on the rack to achieve high-quality cutting and feeding of alfalfa. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of the silage harvester cutter provided by the utility model when harvesting king grass;

[0019] Figure 2 The gear shifting sleeve provided by the utility model;

[0020] Figure 3 The rack plastic sheet provided by the utility model;

[0021] Figure 4 An assembly diagram of the gear shifting sleeve and the tower wheel type conveyor provided by the utility model;

[0022] Figure 5The assembly diagram of the rack plastic sheet and the spiral auger rack provided by the utility model;

[0023] Figure 6 A schematic diagram of the structure of the silage harvester cutter provided by the utility model when harvesting alfalfa;

[0024] Among them, 1. frame; 11. frame structure; 2. cutter; 21. cutter blade; 22. cutter disc; 3. tower wheel conveyor; 31. shifting gear; 4. spiral agitator; 41. spiral agitator rack; 5. shifting gear sleeve; 6. rack plastic sheet. DETAILED DESCRIPTION

[0025] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and specific embodiments to help technicians have a more complete, accurate and in-depth understanding of the concept and technical solution of the present invention. It should be noted that the description of these implementations is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0026] like Figures 1 to 5 As shown, a cutting table of a silage harvester for both royal grass and alfalfa includes a frame 1, a cutter 2, a tower conveyor 3, a spiral auger 4, a gear sleeve 5 and a rack plastic sheet 6. The cutter 2 is fixedly connected to the lower end of the tower conveyor 3 by bolts, and the tower conveyor 3 is arranged at the front end of the frame 1 through a frame structure 11. One gear sleeve 5 is sleeved on one row of gears 31, and six rows of gears require a total of six gear sleeves. The gear sleeve 5 is fixed to the outer surface of the tower conveyor 3 by bolts. The spiral auger 4 is installed on the rear side of the frame 1 through a bearing and a bearing seat. There are four rows of racks 41 evenly arranged along the circumference on the left side of the spiral auger 4. The rack plastic sheet 5 is fixed to the rack 41 of the spiral auger 4 by bolts, and four rows of racks require a total of four rack plastic sheets.

[0027] The specific working method is described below with specific embodiments:

[0028] Embodiment 1:

[0029] The tall grass grass grows in clusters and tillers. There are 10 to 20 stems in a cluster of grass. Grass is a perennial crop that is mowed multiple times. The burrs, tearing and breaking at the cut will affect the growth of the next crop. Therefore, the harvest of grass has high requirements for flat mowing to ensure the flatness of the cut. When harvesting grass, a grass cutter with 10 curved knives is used. The distance between the knives of the cutter is less than the distance between the plants in a single cluster of grass. When cutting, it can ensure that only one stem is completely cut at a time without damaging the adjacent stems. After the stems are cut, they are supported by the 3-layer 6-row teeth of the tower wheel conveyor. The curved curve design of the teeth on one side allows the stems to be smoothly gathered in the middle of the cutting table. Under the action of the spiral auger blades, the direction of the stem conveying is changed to lateral conveying, and finally, under the action of the spiral auger side rack, it continues to be conveyed to the operating device behind the cutting table.

[0030] Embodiment 2:

[0031] When harvesting alfalfa, a short-stemmed leguminous forage grass, the process is the same as that of harvesting king grass, but some devices are different: the petioles of alfalfa are small and fragile, and the stems are relatively tough. Directly using multiple teeth of the tower wheel conveyor to support and transport alfalfa will cause serious leaf falling, and the stems will be entangled between the teeth, so it is necessary to put a tooth sleeve on each row of teeth. The inner and outer wall shapes of the tooth sleeve are the same as the shape of the teeth. The inner wall can well cover each row of teeth, reducing the number of times the teeth hit the alfalfa leaves, and the outer wall can retain a curved curve on one side, so that the alfalfa stems are smoothly gathered in the middle of the cutting table. After each row of teeth is covered, the phenomenon of alfalfa stems being entangled between the teeth is also avoided. Alfalfa will be seriously injured and the stems will be entangled under the sharp serrations of the spiral auger racks, so it is necessary to install a plastic sheet of the tooth sleeve on each row of racks. The rack plastic sheet is made of nylon, which is less hard than the rack, and the teeth of the rack plastic sheet are rounded, which can greatly reduce the damage to the plants when feeding alfalfa. The nylon rack plastic sheet has a certain thickness and a smaller friction coefficient than the rack. After installing the rack plastic sheet, the stems can be prevented from wrapping around the rack.

[0032] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model; or the above-mentioned concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A harvesting platform for alfalfa and silage harvester, comprising a frame (1), a cutter (2), a tower wheel conveyor (3), a spiral auger (4), a gear sleeve (5) and a rack plastic sheet (6), characterized in that: The cutter (2) is fixedly connected to the lower end of the tower wheel conveyor (3) by bolts; the tower wheel conveyor (3) is arranged at the front end of the frame by a frame structure, and three layers and six rows of shifting teeth are arranged on the tower wheel conveyor (3), and the shifting gear sleeve (5) is sleeved on each row of shifting teeth by bolts; the spiral agitator (4) is installed on the rear side of the frame by bearings and bearing seats, and racks are evenly arranged along the circumference on the left side of the spiral agitator (4), and the rack plastic sheets (6) are installed on each rack by bolts.

2. The cutting platform of a king grass and alfalfa silage harvester according to claim 1, characterized in that: The cutter (2) consists of a circular cutter disc and 10 curved knives.

3. The cutting platform of a king grass and alfalfa silage harvester according to claim 1, characterized in that: The three layers and six rows of shifting teeth distributed on the tower wheel conveyor (3) have one side of the shifting teeth in a straight line shape and the other side in a curved arc shape.

4. The cutting platform of a king grass and alfalfa silage harvester according to claim 3, characterized in that: The inner wall shape of the gear shifting sleeve (5) is the same as the gear shifting shape of the tower wheel conveyor (3), with one side being straight and the other side being curved. The gear shifting sleeve (5) has a total length of 260 mm and can completely cover the three gear shifting teeth in one row.

5. The cutting platform of a king grass and alfalfa silage harvester according to claim 4, characterized in that: Bolt holes are provided on the two wings of the gear shifting sleeve, and the gear shifting sleeve is fixed to each row of gear shifting teeth of the tower wheel conveyor (3) by bolts.

6. The cutting platform of a king grass and alfalfa silage harvester according to claim 1, characterized in that: The left side of the spiral auger (4) is provided with four rows of sawtooth racks evenly distributed along the circumference.

7. The cutting platform of a king grass and alfalfa silage harvester according to claim 6, characterized in that: The length and width of the rack plastic sheet (6) are the same as those of the rack on the spiral auger (4), and the shape is also serrated; the side of the rack plastic sheet (6) is a right-angled triangle, with a height of 20 mm, and the bottom side and the rack width are the same as 50 mm; all the saw teeth on the rack plastic sheet (6) are rounded.

8. The cutting platform of a dual-purpose silage harvester for royal grass and alfalfa according to claim 7, characterized in that: Bolt holes are formed on the rack plastic sheet (6), and the rack plastic sheet (6) is fixed to the rack of the spiral agitator (4) by bolts.

9. A king grass and alfalfa silage harvester header according to claim 4 or claim 8, characterized in that: The materials of the gear sleeve (5) and the rack plastic sheet (6) are both nylon.

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