Header and harvester

Abstract

The utility model relates to a corn harvesting device, and in particular to an ear and stalk harvesting platform, comprising a straw-pulling assembly, a stem-pulling roller located below the straw-pulling assembly, a bottom auger located below the stem-pulling roller, a throwing device located at the output end of the bottom auger, and an ear auger for transporting ears; it also comprises a front cross-knife assembly and a roller assembly located between the stem-pulling roller and the bottom auger. The ear and stalk harvesting platform of the utility model, by providing a conical head and spiral ribs and two types of stem-pulling plates on the stem-pulling roller to form a roller-plate combined stem-pulling, achieves smooth stem pulling without clogging, without damaging the stalks and ears, and has high stem pulling efficiency; by providing a roller assembly, the corn stalks are fully chopped, the structure is simple, and the working efficiency is high; the chopped stalks can be quickly, evenly and smoothly passed through the bottom auger through the oval-shaped structure-designed feed port into the fan and then thrown out, avoiding the stalks squeezing and blocking the channel.

Description

Technical Field

[0001] The utility model relates to a corn harvesting device, in particular to an ear and stalk harvesting platform. Background Art

[0002] The corn harvester header is an important component of the corn harvester, and its function is to harvest and shred the corn stalks and collect the corn ears on the stalks. The Chinese invention patent application with application number 202310389295.5 discloses an integrated corn harvesting header for harvesting both ears and stalks. The corn stalks are cut by a cutting unit, the stalks are pulled by a straw-pulling unit, and then the stalks are shredded by a straw conveying auger, a straw shredding feeding unit, and a straw shredding air delivery unit. However, after the straw is completely cut off, the scheme enters the straw shredding feeding unit to complete the shredding of the straw by squeezing and tearing. This method may cause straw squeezing and blockage during the squeezing process; in addition, the stem pulling roller in this scheme is only provided with spiral ribs, and the stem clamping may be unstable during the stem pulling process. Utility Model Content

[0003] Technical purpose: In order to overcome the deficiencies in the prior art, the utility model provides an ear and stalk harvesting platform to achieve efficient and smooth operation during corn harvesting.

[0004] Technical solution: To achieve the above-mentioned purpose, the utility model discloses an ear-stem and harvesting platform, including a straw-pushing assembly, a stem-pulling roller located below the straw-pushing assembly, a bottom auger located below the stem-pulling roller, a spreading device located at the output end of the bottom auger, and an ear auger for transporting ear clusters; it also includes a front cross-knife assembly and a roller knife assembly located between the stem-pulling roller and the bottom auger.

[0005] Furthermore, the stem pulling roller includes a roller body, a first spiral rib is arranged at the front of the roller body, a stem pulling plate is arranged at the rear of the roller body, the stem pulling plate is arranged along the axial direction of the roller body, a plurality of stem pulling plates are evenly distributed circumferentially around the axis of the roller body, a conical head is arranged at the front end of the roller body, and a second spiral rib is arranged on the conical head.

[0006] Furthermore, the front end of the stem pulling plate is inclined, and the stem pulling plate includes a serrated plate and a flat plate arranged at intervals, and saw teeth are arranged at one end of the serrated plate away from the outer surface of the roller body; an arc-shaped ear-picking plate is also arranged between the rice-pulling assembly and the stem pulling roller, and the arc-shaped ear-picking plate is fixedly arranged on the frame.

[0007] Furthermore, the rolling cutter assembly includes a first fixed cutter, a roller and a rolling cutter group arranged on the roller, the rolling cutter group includes a plurality of first movable cutters evenly distributed along the circumference of the axis of the roller, and the roller rotates under the drive of an external force, driving the plurality of first movable cutters to contact the first fixed cutter in turn.

[0008] Furthermore, the rolling knife groups are provided in two groups, which are respectively arranged at the front and rear of the drum, and the first movable knives in the two groups of the rolling knife groups are arranged alternately.

[0009] Furthermore, the bottom auger includes a tray and a front auger and a rear auger arranged in the tray, the front auger includes a grass-turning board, a left-handed blade arranged on one side of the grass-turning board, and a right-handed blade arranged on the other side of the grass-turning board, and the output end of the rear auger is connected to the spreading device.

[0010] Furthermore, the spreading device includes a fan and a grass discharge pipe, the fan includes a feed port and blades, the feed port is connected to the output end of the rear auger, the feed port is arranged to be oval, the blades are arranged with a plurality of pieces, which are evenly distributed circumferentially around the axis of the fan, and the blades are provided with folded edges.

[0011] Furthermore, the straw plowing assembly includes a first straw plowing chain, an annular transmission chain and a second straw plowing chain, one end of the annular transmission chain rotates coaxially with the first straw plowing chain, the other end of the annular transmission chain rotates coaxially with the second straw plowing chain, and a plurality of straw plowing teeth are provided on the first straw plowing chain and the second straw plowing chain.

[0012] Furthermore, the horizontal knife assembly includes a second fixed knife and a second movable knife in contact with the second fixed knife, the second fixed knife is fixedly arranged on the frame, and the second movable knife reciprocates horizontally under the drive of an external driving device.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The ear and stalk harvesting platform of the utility model provides a cone head and spiral ribs on the stalk pulling roller and two types of stalk pulling plates on the roller body to form a roller-plate combined stalk pulling type, which cooperates with the arc-shaped ear picking plate to achieve smooth stalk pulling without clogging and without damaging the stalks and ears, and has high stalk pulling efficiency, and is suitable for fast corn harvesters; the corn stalks are fully chopped by providing a roller cutter assembly, and the structure is simple and the working efficiency is high; the chopped stalks can be quickly and evenly entered into the blower through the oval-shaped feed port through the auger at the bottom and then thrown out, and the transportation is smooth, and the stalk squeezing and clogging of the channel are avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the ear-stem and harvesting platform of the utility model;

[0016] Figure 2 It is an axial side view of the ear-stem and harvesting platform of the utility model;

[0017] Figure 3 It is a schematic diagram of the stem pulling roller structure;

[0018] Figure 4 It is a schematic diagram of the structure of the hob assembly;

[0019] Figure 5 This is a schematic diagram of the bottom auger structure;

[0020] Figure 6 It is a schematic diagram of the structure of the spreading device;

[0021] Figure 7 It is a schematic diagram of the oval feed port structure;

[0022] Figure 8 It is a schematic diagram of the structure of the reed-pulling component;

[0023] Fig. 9 This is a schematic diagram of the arc-shaped ear-picking board structure.

[0024] In the figure, 1, the rice-pulling assembly; 2, the stem-pulling roller; 3, the bottom auger; 4, the throwing device; 5, the ear auger; 6, the horizontal knife assembly; 7, the rolling knife assembly; 8, the roller body; 9, the first spiral rib; 10, the stem-pulling plate; 11, the conical head; 12, the second spiral rib; 13, the serrated plate; 14, the flat plate; 15, the first fixed knife; 16, the roller; 17, the rolling knife group; 18, the first moving knife; 19, the tray; 20 , front auger; 21, rear auger; 22, grass turning board; 23, left-handed blades; 24, right-handed blades; 25, fan; 26, grass discharge pipe; 27, feed inlet; 28, fan blades; 29, folded edge; 30, first straw-pushing chain; 31, ring-shaped transmission chain; 32, second straw-pushing chain; 33, straw-pushing teeth; 34, second fixed knife; 35, second movable knife; 36, turntable; 37, driving connecting rod; 38, arc-shaped ear-picking board. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1 To Attachment Fig. 9 The principles and features of the present invention are described, and the examples given are only used to explain the present invention, and are not used to limit the scope of the present invention.

[0026] A stem and ear harvesting platform comprises a front horizontal blade assembly 6, a straw pulling assembly 1, a stem pulling roller 2 located below the straw pulling assembly 1, a bottom auger 3 located below the stem pulling roller 2, a spreading device 4 located at the output end of the bottom auger 3, a stem auger 5 for transporting fruit ears, and a roller cutter assembly 7 located between the stem pulling roller 2 and the bottom auger 3.

[0027] The horizontal blade assembly 6 is used to cut the corn stalks at a position close to the root. The horizontal blade assembly 6 includes a second fixed blade 34 and a second movable blade 35 that fits the second fixed blade 34. The second fixed blade 34 is fixedly arranged on the frame, and the second movable blade 35 reciprocates horizontally under the drive of the external drive device. The second fixed blade 34 and the second movable blade 35 are respectively composed of a plurality of blades. In one embodiment, the blades are triangular structures. In one embodiment, the driving device of the second movable blade 35 can be a cam structure driven by a motor. The cam structure includes a turntable 36 that rotates coaxially with the motor and a driving connecting rod 37. One end of the driving connecting rod 37 is connected between the outer circle and the center of the turntable 36, and the other end thereof is connected to the second movable blade 35. When working, the motor drives the turntable 36 to rotate, driving one end of the driving connecting rod 37 to rotate around the center of the turntable 36, and the other end of the driving connecting rod 37 drives the second movable blade 35 to reciprocate, so that each blade of the second movable blade 35 reciprocates horizontally between the two blades of the second fixed blade 34 to cut the stalks.

[0028] The straw pulling assembly 1 is used to pull the cut straw toward the cutting platform. The straw pulling assembly 1 includes a first straw pulling chain 30, an annular transmission chain 31 and a second straw pulling chain 32. Both ends of the first straw pulling chain 30, the annular transmission chain 31 and the second straw pulling chain 32 are provided with sprockets. One end of the annular transmission chain 31 and one end of the first straw pulling chain 30 are coaxially rotated through two coaxial sprockets. Similarly, the other end of the annular transmission chain 31 and one end of the second straw pulling chain 32 are also coaxially rotated through two coaxial sprockets. The other ends of the first straw pulling chain 30 and the second straw pulling chain 32 are respectively connected to the sprockets fixed on the frame. A plurality of straw pulling teeth 33 are provided on the first straw pulling chain 30 and the second straw pulling chain 32, which are conducive to pulling the straw. In one embodiment, a total of 6 straw pulling assemblies 1 are provided and are grouped in pairs. The two straw pulling assemblies 1 in each group rotate relative to each other, so that the straw is pulled between the two straw pulling assemblies 1.

[0029] The stem pulling roller 2 is located below the reed-pulling assembly 1 and is used to pull the straw between the two reed-pulling assemblies 1 downward. The stem pulling roller 2 includes a roller body 8, a first spiral rib 9 is provided at the front of the roller body 8, and a stem pulling plate 10 is provided at the rear of the roller body 8 along the axial direction of the roller body 8. The front end of the stem pulling plate 10 is inclined toward the roller body 8, and a plurality of stem pulling plates 10 are provided, which are evenly distributed around the axial direction of the roller body 8. A conical head 11 is provided at the front end of the roller body 8, and a second spiral rib 12 is provided on the conical head 11. In one embodiment, the stem pulling plate 10 includes a serrated plate 13 and a flat plate 14 arranged at intervals, and a serration is provided at one end of the serrated plate 13 away from the outer surface of the roller body 8. In one embodiment, six stem pulling rollers 2 are provided and arranged in groups of two, correspondingly arranged below six reed-pulling assemblies 1, and the first spiral ribs 9 in the two stem pulling rollers 2 in each group have opposite rotation directions, and the second spiral ribs 12 in each group also have opposite rotation directions, and the two stem pulling rollers 2 in each group rotate relative to each other. In one embodiment, an arc-shaped ear-picking plate 38 is further provided between the straw-pulling assembly 1 and the stem-pulling roller 2, near the stem-pulling roller 2. The arc-shaped ear-picking plate 38 is fixed on the frame, and an oblique angle is provided at the front end thereof. The number of the arc-shaped ear-picking plates 38 is the same as the number of the stem-pulling rollers 2 and they are arranged opposite to each other in pairs to facilitate straw feeding. The stem-pulling roller 2 and the arc-shaped ear-picking plates 38 cooperate with each other to achieve damage-free ear picking.

[0030] The roller cutter assembly 7 is arranged below the stem pulling roller 2. When the stem pulling roller 2 pulls the straw to move downward, the roller cutter assembly 7 chops the straw. The roller cutter assembly 7 includes a first fixed knife 15 fixed on the frame, a roller 16, and a rolling knife group 17 arranged on the roller 16. The rolling knife group 17 includes a plurality of first movable knives 18 evenly distributed along the circumference of the axis of the roller 16. The roller 16 rotates under the drive of an external force, and drives the plurality of first movable knives 18 to contact the first fixed knife 15 in turn. In one embodiment, the rolling knife group 17 is provided with two groups, which are respectively arranged at the front and rear of the roller 16, and the plurality of first movable knives 18 in the two groups of rolling knife groups 17 are staggered. The first fixed knife 15 and the rolling knife group 17 cooperate with each other to achieve efficient chopping of the straw.

[0031] The bottom auger 3 is located below the rotary cutter assembly 7 and is used to transport the chopped straw to the spreading device 4. The bottom auger 3 includes a tray 19 and a front auger 20 and a rear auger 21 arranged in the tray 19. The front auger 20 includes a grass turning plate 22, a left-handed blade 23 arranged on one side of the grass turning plate 22, and a right-handed blade 24 arranged on the other side of the grass turning plate 22. The grass turning plate 22 is provided with a plurality of blades and is evenly arranged in the circumferential direction, and rotates coaxially with the left-handed blade 23 and the right-handed blade 24. When the rotary cutter assembly 7 chops the straw and falls into the tray 19, the front auger 20 rotates, and the rotation of the left-handed blade 23 and the right-handed blade 24 pushes the chopped straw toward the direction of the grass turning plate 22, and the rotation of the grass turning plate 22 pushes the chopped straw into the rear auger 21. The rear auger 21 is provided with only one type of blade, and its output end is connected to the spreading device 4, so that the chopped straw can be continuously sent into the spreading device 4. In one embodiment, in order to make the chopped straw obtained in the rear auger 21 more uniform, two groups of straw turning plates 22 are provided, thereby also improving work efficiency.

[0032] The spreading device 4 is used to absorb the broken straw and then spread it back to the field or into the straw collection device. The spreading device 4 includes a fan 25 and a grass discharge pipe 26. The fan 25 includes a feed port 27 and a fan blade 28. The feed port 27 is connected to the output end of the rear auger 21. The feed port 27 is set to an oval structure, and its wider end is set higher than the narrower end. This arrangement allows the broken straw to enter the fan 25 from the rear auger 21 more smoothly. The fan blade 28 is provided with a plurality of blades, which are evenly distributed around the axis of the fan 25. The fan blade 28 rotates under the drive of the motor to push the broken straw into the grass discharge pipe 26. In order to enable the fan blade 28 to push more broken straw each time, in one embodiment, a folded edge 29 is provided on the fan blade 28, and the folded edge 29 is provided at the end of the fan blade 28 away from the axis of the fan 25.

[0033] The ear auger 5 is located behind the straw-pushing assembly 1. When the corn stalks pass through the straw-pushing assembly 1, the corn ears fall into the ear auger 5. An outlet is provided at the end of the ear auger 5. The ear auger 5 rotates to transport the ears horizontally to the outlet and fall into the collecting device.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A stem and ear harvesting platform, characterized in that: The invention comprises a straw-pushing assembly (1), a stem-pulling roller (2) located below the straw-pushing assembly (1), a bottom auger (3) located below the stem-pulling roller (2), a spreading device (4) located at the output end of the bottom auger (3), and a fruit ear auger (5) for transporting fruit ears; and also comprises a front cross-knife assembly (6) and a roller knife assembly (7) located between the stem-pulling roller (2) and the bottom auger (3).

2. The ear-stalk and harvesting platform according to claim 1, characterized in that: The stem pulling roller (2) comprises a roller body (8), a first spiral rib (9) is arranged at the front of the roller body (8), a stem pulling plate (10) is arranged at the rear of the roller body (8), the stem pulling plate (10) is arranged along the axial direction of the roller body (8), and a plurality of stem pulling plates (10) are evenly distributed circumferentially around the axis of the roller body (8), a conical head (11) is arranged at the front end of the roller body (8), and a second spiral rib (12) is arranged on the conical head (11).

3. The ear-stalk and harvesting platform according to claim 2, characterized in that: The front end of the stem pulling plate (10) is arranged at an angle, and the stem pulling plate (10) comprises a serrated plate (13) and a flat plate (14) arranged at intervals, and the serrated plate (13) is provided with serrations at one end away from the outer surface of the roller body (8); an arc-shaped ear-picking plate (38) is also provided between the straw-pulling assembly (1) and the stem pulling roller (2), and the arc-shaped ear-picking plate (38) is fixedly provided on the frame.

4. The ear-stalk and harvesting platform according to claim 1, characterized in that: The rolling cutter assembly (7) comprises a first fixed cutter (15), a roller (16) and a rolling cutter group (17) arranged on the roller (16); the rolling cutter group (17) comprises a plurality of first movable cutters (18) uniformly distributed along the circumference of the axis of the roller (16); the roller (16) rotates under the driving force of an external force, and sequentially drives the plurality of first movable cutters (18) to contact the first fixed cutter (15).

5. The ear-stalk and harvesting platform according to claim 4, characterized in that: The rolling knife groups (17) are provided in two groups, which are respectively arranged at the front and rear of the drum (16); the first movable knives (18) in the two groups of rolling knife groups (17) are arranged alternately.

6. The ear-stalk and harvesting platform according to claim 1, characterized in that: The bottom auger (3) comprises a tray (19) and a front auger (20) and a rear auger (21) arranged in the tray (19); the front auger (20) comprises a grass turning plate (22), a left-handed blade (23) arranged on one side of the grass turning plate (22) and a right-handed blade (24) arranged on the other side of the grass turning plate (22); the output end of the rear auger (21) is connected to the spreading device (4).

7. The ear-stalk and harvesting platform according to claim 6, characterized in that: The spreading device (4) comprises a fan (25) and a grass discharge pipe (26), the fan (25) comprises a feed port (27) and a fan blade (28), the feed port (27) is communicated with the output end of the rear auger (21), the feed port (27) is arranged in an oval shape, the fan blade (28) is arranged with a plurality of blades, which are evenly distributed circumferentially around the axis of the fan (25), and the fan blade (28) is provided with a folded edge (29).

8. The ear-stalk and harvesting platform according to claim 1, characterized in that: The reed-pulling assembly (1) comprises a first reed-pulling chain (30), an annular transmission chain (31) and a second reed-pulling chain (32); one end of the annular transmission chain (31) rotates coaxially with the first reed-pulling chain (30); the other end of the annular transmission chain (31) rotates coaxially with the second reed-pulling chain (32); and a plurality of reed-pulling teeth (33) are provided on both the first reed-pulling chain (30) and the second reed-pulling chain (32).

9. The ear-stalk and harvesting platform according to claim 1, characterized in that: The transverse knife assembly (6) comprises a second fixed knife (34) and a second movable knife (35) fitted with the second fixed knife (34); the second fixed knife (34) is fixedly arranged on a frame; the second movable knife (35) reciprocates transversely under the drive of an external driving device.

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