CN209824441U - High-speed corn combine harvester with large feeding amount and no row alignment - Google Patents

High-speed corn combine harvester with large feeding amount and no row alignment Download PDF

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Publication number
CN209824441U
CN209824441U CN201920439512.6U CN201920439512U CN209824441U CN 209824441 U CN209824441 U CN 209824441U CN 201920439512 U CN201920439512 U CN 201920439512U CN 209824441 U CN209824441 U CN 209824441U
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roller
cutting
ear picking
floating
knife
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郑宇虎
薛江涛
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郑宇虎
薛江涛
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Abstract

A non-parallel large-feeding-amount high-speed corn combine harvester comprises a harvesting part, a conveying part, a peeling impurity removing part, a cab, a granary and a chassis walking part, wherein the transmission mode of the harvesting part adopts an intermediate transmission structure, a quick cutting feeding mechanism is installed at the front end of a stalk pulling roller, an ear picking plate and the stalk pulling roller of the ear picking mechanism adopt a floating mechanism, the conveying part comprises a front-stage elevator and a rear-stage elevator, the front-stage elevator is installed in front of the peeling mechanism, the rear-stage elevator is installed between the granary and the peeling mechanism, a flow guide cover and an impurity removing roller are arranged at the top end of the front-stage elevator, an impurity removing fan is installed at the upper part of the flow guide cover, and an ear uniform distribution auger and an ear uniform distribution guide groove are arranged between the peeling mechanism and the flow guide cover.

Description

High-speed corn combine harvester with large feeding amount and no row alignment
Technical Field
The invention relates to a corn harvester, in particular to a high-speed corn combine harvester which can not feed large rows.
Background
At present, the adaptability to different corn row distances (particularly a multi-row corn harvester header), the feeding amount and the harvesting speed of the corn harvesting combine harvester are poor when the corn harvesting combine harvester harvests, and the operation efficiency is low; the power consumption of the matched straw returning machine is large, the dust raising of the crushed materials is large, and the environmental pollution is serious.
Disclosure of Invention
1. The invention aims to overcome the defects and provide a high-speed corn combine harvester with large feeding quantity without row alignment, which comprises a header part (01), a conveying part (02), a peeling and impurity removing part (03), a cab (04), a granary (05) and a chassis walking part (06), and is characterized in that:
firstly, a header part (01) is provided with a quick cutting and feeding shifting wheel system at the front end of a stalk pulling roller (13), a cutting fixed knife (114) in the system is positioned above a cutting movable knife (113), and the cutting movable knife (113), an upper reel wheel (115), a lower reel wheel (115) and a reel chain (3) share the same transmission system: the cutting knife seat is arranged at the front lower end of the ear picking roller support (11), the cutting knife seat (111) can be adjusted on the ear picking roller support (11) front and back, the cutting knife shaft (112) is supported and arranged in the cutting knife seat (111) through a bearing, the cutting fixed knife (114) is fixed at the lower end of the cutting knife seat (111), is positioned above the cutting movable knife (113) and is matched with the cutting movable knife (113), the cutting movable knife (113) is arranged at the lower end of the cutting knife shaft (112), the reel chain wheel (119) is arranged at the upper end of the cutting knife shaft (112), the reel chain wheel (119) is used as a tension chain wheel of the reel chain (3) and also used as an input chain wheel of the power of the cutting knife shaft (112), the lower end of the reel wheel shaft (116) is in transmission connection with the upper end of the cutting knife shaft (112), the upper part of the reel wheel shaft (116) is supported and arranged in the reel wheel branch, the lower ends of the branch pipes (117) of the reel are hinged with the front end of the front support of the stem-pulling roll cover, the upper parts of the branch pipes are connected with the rear end of the front support of the stem-pulling roll cover through branch pipe adjusting rods (118), the forward inclination angles of the branch pipes (117) of the reel and reel shafts (116) of the reel can be adjusted by adjusting the lengths of the branch pipe adjusting rods (118), and the upper end and the lower end of the reel shaft (116) are respectively provided with a reel (115);
the ear picking plate of the ear picking mechanism of the header part (01) adopts a self-adaptive adjustment ear picking plate mechanism: the corn harvester comprises a rotating shaft support (1), a floating rotating arm (2), a connecting rotating pin (4), a floating ear picking plate (5), an adjusting screw rod (9), a pre-tightening spring (10), a limiting screw (12) and a stem pulling roller (13), wherein the floating ear picking plate (5) is positioned above the stem pulling roller (13) and is arranged between an ear picking roller support (11) and a seedling pulling chain guide plate (3) and between the ear picking roller support and the seedling pulling chain guide plate (6), a buffer spring (7) and a buffer press head (8) are arranged below the floating ear picking plate (5), the floating rotating arm (2) is arranged on the ear picking roller support (11) through the rotating shaft support (1) and mainly comprises a floating rotating shaft (22), a floating moving arm (21) and a lower floating arm (23), the floating moving arm (21) is fixed at two ends of the floating rotating shaft (22), the upper end of the floating moving arm (21) is provided with the connecting rotating pin (4), and the connecting rotating pin (4) is hinged with the floating, the connecting rotating pin (4) is connected with a connecting seat (51) on the floating ear picking plate (5) through a fastener, the lower floating arm (23) is fixed on the floating rotating shaft (22), the lower end of the lower floating arm (23) is connected with a beam between the ear picking roller bracket (11) through an adjusting screw rod (9) and a pre-tightening spring (10), and the ear picking roller bracket (11) is provided with a limit screw (12) at a position corresponding to the upper floating arm (21) and the lower floating arm (23);
and a stem-drawing roller (13) of the ear picking mechanism of the header part (01) adopts a self-adaptive adjustment stem-drawing roller mechanism: the device comprises a weeding knife (131), a stalk-pulling roller support (132), a connecting fork (134), a guide rod (136), a guide spring (137) and a guide rod seat (138), wherein the guide rod seat (138) is additionally arranged on a stalk-pulling roller support (11), the guide rod (136) and the guide spring (137) are arranged in the guide rod seat (138), the excircle of the guide rod (136) is matched with the inner hole of the guide rod seat (138), the outer end of the guide rod (136) is provided with an adjusting nut (139) for adjusting the pretightening force of the guide spring (137), the middle part of the guide rod (136) is provided with a positioning step for limiting the telescopic range of the guide rod seat (138), the connecting fork (134) and a locking nut (135) are arranged at the inner end of the guide rod (136), the stalk-pulling roller support (132) is arranged in the connecting fork (134) through a connecting pin (133), and is arranged at the front end of the stalk-pulling roller (13) through a bearing, a weeding knife (131) is arranged below the stalk-pulling roller support (132), and the cutting edge of the weeding knife (131) corresponds to the rotary contour of the stalk-pulling roller (13);
a longitudinal roller knife chopping device is arranged below an ear picking roller of the header part (01), a chopping transmission box (121) and an ear picking transmission box (120) are arranged in a transmission manner in an upper layer and a lower layer, the chopping transmission box (121) is arranged below the ear picking transmission box (120), an input shaft gear of the chopping transmission box (121) is meshed with a gear in the ear picking transmission box (120), power is taken out from the ear picking box and then transmitted to a chopping knife roller (122) through conical gear rotation, the chopping knife roller (122) is positioned below the stem pulling roller (13), a spiral guide cone (124) is arranged at the front end of the chopping knife roller (122), chopping movable knives (123) are uniformly arranged on the circumference of the chopping knife roller (122), chopping fixed knives (125) are arranged on a fixed knife bracket (126) on the ear picking roller bracket (11), and a gap between the chopping fixed knives (125) and the chopping movable knives (123) is adjustable;
the conveying part (02) comprises a front-stage lifting conveyor (021) and a rear-stage lifting conveyor (022), the front-stage lifting conveyor (021) is installed in front of the peeling mechanism (031), and the rear-stage lifting conveyor (021) is installed behind the peeling mechanism (031) and is positioned between the granary (05) and the peeling mechanism (031);
the peeling part (03) comprises a peeling mechanism (031), an impurity removing fan (032) and a bract crushing device (033), the bract crushing device (033) is arranged at the outlet of a bract auger below the peeling mechanism (031), a guide hood (211) and an impurity removing roller (212) are arranged at the top end of a preceding stage elevator (021), the impurity removing fan (032) is arranged at the upper part of the guide hood (211), a positive and negative uniformly-distributed auger (311) and a fruit cluster uniformly-distributed guide groove (312) are arranged between the peeling mechanism (031) and the guide cover (211), reverse screws with the opposite rotation direction to the middle uniform spiral direction are arranged at the two ends of the forward and reverse uniform distribution screw feeder (311), the front end of the peeling roller (313) extends forwards to the front of the front flow guide plate (315), a forced feeding wheel (314) is arranged above the front end of the peeling roller (313), and a plurality of groups of pressure feeding wheels (316) are arranged behind the forced feeding wheel (314).
The invention has the following positive effects: through the mechanism, the invention realizes the non-row high-speed harvesting of the corn, saves a straw returning machine with high power consumption of the original corn harvester, changes a straw rolling cutting crushing returning structure with very low power consumption, reduces the dust pollution of crushed objects, and meets the requirements of high-speed harvesting and environmental protection.
Drawings
The invention will be further described with reference to examples in the drawings to which:
FIG. 1 is a schematic diagram of the general structure of a high-speed corn combine without feeding a large amount of corn into rows.
Fig. 2 is a schematic cross-sectional view of a floating deck of the present invention.
Fig. 3 is a schematic structural view of a floating boom of the present invention.
Fig. 4 is a perspective view of a floating deck of the present invention.
Fig. 5 is a schematic diagram of a floating deck according to the present invention.
Fig. 6 is a transverse sectional view of a portion of the floating stalk-pulling roll of the present invention.
Fig. 7 is a longitudinal sectional view of a portion of the floating stalk-pulling roll according to the present invention.
FIG. 8 is a schematic view of the fast cutting and feeding mechanism of the present invention.
FIG. 9 is a longitudinal cross-sectional view of the straw chopper of the present invention.
FIG. 10 is a transverse sectional view of the straw chopper of the present invention.
Fig. 11 is a perspective view schematically showing the structure of the conveying and peeling section in the present invention.
Fig. 12 is a partial sectional structural view of a conveying and peeling part in the present invention.
FIG. 13 is a schematic view of the structure of the arc-shaped chopping fixed knife of the present invention.
Fig. 14 is a structural schematic view of the stem-pulling roll support in which the mounting positions are staggered back and forth.
Detailed Description
The utility model provides a not high-speed maize combine of big feed amount of row, includes header part (01), conveying part (02), skin edulcoration part (03), driver's cabin (04), granary (05) and chassis walking part (06), and the specific embodiment is as follows:
1. the header part (01) is provided with a quick cutting and feeding shifting wheel system at the front end of the stalk pulling roller (13), a cutting fixed knife (114) in the system is positioned above a cutting movable knife (113), and the cutting movable knife (113), an upper shifting wheel (115) and a lower shifting wheel (115) share the same transmission system with the shifting chain (3): the cutting device comprises a cutting tool apron (111), a cutting tool shaft (112), a cutting movable tool (113), a cutting fixed tool (114), a reel (115), a reel shaft (116), a reel branch pipe (117) and a branch pipe adjusting rod (118), wherein the cutting tool apron is arranged at the front lower end of a picking roller support (11), the cutting tool apron (111) can be adjusted front and back on the picking roller support (11), the cutting tool shaft (112) is supported and arranged in the cutting tool apron (111) through a bearing, the cutting movable tool (113) is arranged at the lower end of the cutting tool shaft (112), the cutting fixed tool (114) is fixed at the lower end of the cutting tool apron (111) and is positioned above the cutting movable tool (113) and matched with the cutting movable tool (113), the structure is simplified, the straws can pass through smoothly, and straw blockage is prevented; the reel chain wheel (119) is arranged at the upper end of the cutting-off cutter shaft (112), the reel chain wheel (119) is used as a tension chain wheel of the reel chain (3) and also used as an input chain wheel of the power of the cutting-off cutter shaft (112), the lower end of the reel shaft (116) is in transmission connection with the upper end of the cutting-off cutter shaft (112), the connection modes between the reel chain wheel and the cutting-off cutter shaft can be ball pin connection, spline connection and universal joint connection, so that the angle of the reel shaft (116) can be conveniently adjusted, the upper part of the reel shaft (116) is supported and arranged in a reel branch pipe (117) through a bearing, the lower end of the reel branch pipe (117) is hinged with the front end of a stem-pulling roller cover front bracket, the upper part of the reel shaft is connected with the rear end of the stem-pulling roller cover front bracket through a branch pipe adjusting rod (118), and the forward inclination angles of the reel branch pipe (117) and the reel shaft (116) can be adjusted, the upper end and the lower end of the reel shaft (116) are respectively provided with a reel (115) (see figure 8). During harvesting operation, the reel chain (3) drives the cutting cutter shaft (112) to rotate through the reel chain wheel (119), the cutting cutter shaft (112) drives the cutting movable cutter (113) to work and simultaneously drives the reel wheel (115) to rotate through the reel wheel shaft (116), the reel wheel (115) firstly holds the upper half part of the corn stalk, the cutting fixed cutter (114) and the cutting movable cutter (113) jointly act to cut the corn stalk from the lower end, and then the reel chain (3) and the reel wheel (115) jointly feed the corn stalk into a working channel of the stalk-pulling roller (13), so that the corn stalk is quickly cut off and fed.
2. The ear plucking plate of the ear plucking mechanism of the header part (01) adopts a self-adaptive adjustment ear plucking plate mechanism, namely a floating ear plucking plate mechanism, so that the phenomenon that grains fall off and ears jump out of the header due to impact ear plucking plates is prevented, and the loss rate of the header is reduced: the corn ear picking device comprises a rotating shaft support (1), a floating rotating arm (2), a connecting rotating pin (4), a floating ear picking plate (5), an adjusting screw rod (9), a pre-tightening spring (10), a limiting screw (12) and a stem pulling roller (13), wherein the floating ear picking plate (5) is positioned above the stem pulling roller (13) and is arranged between an ear picking roller bracket (11) and a seedling pulling chain (3) and a seedling pulling chain guide plate (6), a buffer spring (7) and a buffer punching head (8) are arranged below the floating ear picking plate (5), before the ears reach the floating ear picking plate (5), the buffer spring (7) and the buffer punching head (8) enable the floating ear picking plate (5) to be always lifted to be in an initial state to be contacted with the lower surface of the seedling pulling chain guide plate (6), when the ears reach the floating ear picking plate (5) along with corn stalks, the ears drive the floating ear picking plate (5) to move downwards, and the buffer spring (7) is compressed, the impact force between the ears and the ear picking plate is buffered, so that the problem that the roots of the ears are damaged due to overlarge impact force is solved; the floating rotating arm (2) is arranged on the ear picking roller bracket (11) through a rotating shaft support (1) and mainly comprises a floating rotating shaft (22), an upper floating arm (21) and a lower floating arm (23), the upper floating arm (21) is fixed at two ends of the floating rotating shaft (22), the upper end of the upper floating arm (21) is provided with a connecting rotating pin (4), the connecting rotating pin (4) is hinged with the upper floating arm (21), the connecting rotating pin (4) is connected with a connecting seat (51) on the floating ear picking plate (5) through a fastener, the lower floating arm (23) is fixed on the floating rotating shaft (22), the lower floating arm (23) can be arranged in the middle of the floating rotating shaft (22) or in the front or rear of the floating rotating shaft (22), the lower end of the lower floating arm (23) is connected with a cross beam between the ear picking roller bracket (11) through an adjusting screw rod (9) and a pre-tightening spring (10), the pre-tightening spring (10) enables the floating ear picking plate (5) to be always in the state of minimum clearance in the initial state, and the adjusting screw rod (9) is used for adjusting the pre-tightening force of the pre-tightening spring (10); the ear picking roller support (11) is provided with a limiting screw (12) at the position corresponding to the upper floating arm (21) and the lower floating arm (23), the upper limiting screw is used for setting the minimum clearance of the floating ear picking plate, and the lower limiting screw is used for setting the maximum clearance of the floating ear picking plate (see fig. 2, 3 and 4). During operation, the corn stalks are guided into a channel formed by the floating ear picking plates (5) by the seedling pulling chain (3), the corn stalks are pulled downwards by the stalk pulling roller (13), when the ears reach the ear picking plates, the ears are clamped by the floating ear picking plates (5), the corn stalks are continuously pulled downwards, and the ears are picked from the corn stalks; when coarse cornstalks enter the channel, the cornstalks are separated towards two sides by the floating ear picking plates (5), the coarse cornstalks are ensured to smoothly enter and pass through the channel, so that the problem of broken cornstalks caused by improper clearance of the ear picking plates in the ear picking process is reduced, and after the coarse cornstalks pass through the channel, the floating ear picking plates (5) automatically return to the position of the minimum clearance under the action of the pre-tightening springs (10).
3. The stem drawing roller (13) of the ear picking mechanism of the header part (01) adopts a self-adaptive adjustment stem drawing roller mechanism, namely, a floating stem drawing roller mechanism, prevents the broken rod and the blockage, and reduces the impurity rate: the device comprises a weeding knife (131), a stalk-pulling roller support (132), a connecting fork (134), a guide rod (136), a guide spring (137) and a guide rod seat (138), wherein the guide rod seat (138) is additionally arranged on a stalk-pulling roller support (11), the guide rod (136) and the guide spring (137) are arranged in the guide rod seat (138), the excircle of the guide rod (136) is matched with the inner hole of the guide rod seat (138), the outer end of the guide rod (136) is provided with an adjusting nut (139) for adjusting the pretightening force of the guide spring (137), the middle part of the guide rod (136) is provided with a positioning step for limiting the telescopic range of the guide rod (136), the connecting fork (134) and a locking nut (135) are arranged at the inner end of the guide rod (136), the stalk-pulling roller support (132) is arranged in the connecting fork (134) through a connecting pin (133), and is arranged at the front end of a stalk-pulling roller (13) through a bearing, a weeding knife (131) is arranged below the stalk-pulling roll support (132), and the cutting edge of the weeding knife (131) corresponds to the rotary contour of the stalk-pulling roll (13) (see figures 6 and 7). When in use, the pretightening force of the guide spring (137) is adjusted by the adjusting nut (139) and is locked by the double nut or the split pin, and then the initial gap of the stalk-pulling roller (13) is adjusted by the connecting fork (134) and is locked by the locking nut (135); when thicker corn straws are harvested and enter the snapping channel between the two stalk-pulling rollers, the guide spring (137) is compressed, the stalk-pulling rollers (13) move outwards, the clearance of the snapping channel is enlarged, after the thicker corn straws pass through, the stalk-pulling rollers (13) automatically return to the set initial position under the action of the guide spring (137), and the weeding knife (131) timely cuts off weeds wound on the stalk-pulling rollers (13), so that the problem that the weeds are wound on the stalk-pulling rollers (13) is solved.
4. Install in the below of header part (01) stem drawing roller (13) indulge and put roller sword comminution device, the stem drawing roller plays the centre gripping of stem stalk again and the effect of evenly carrying downwards when drawing the stem, makes the comminution roller sword of lower part roll and cuts uniformly to guarantee that the straw can evenly cut up, two-layer transmission is arranged about simultaneously cutting up the transmission case and plucking the ear of grain transmission case, and is compact high-efficient: the corn ear picking device comprises a chopping transmission box (121), a chopping knife roller (122), chopping movable knives (123) and chopping fixed knives (125), wherein the chopping transmission box (121) is installed below a picking transmission box (120), an input shaft gear of the chopping transmission box (121) is meshed with a gear in the picking transmission box (120), power is taken out of the picking box and then transmitted to the chopping knife roller (122) through bevel gear rotation, the chopping knife roller (122) is located below a stem pulling roller (13), spiral guide cones (124) are installed at the front ends of the chopping knife roller (122), the chopping movable knives (123) are uniformly installed on the circumference of the chopping knife roller (122), the chopping fixed knives (125) are installed on a fixed knife bracket (126) on the picking roller bracket (11), and gaps between the chopping fixed knives (125) and the chopping movable knives (123) are adjustable (see fig. 9 and fig. 10). During operation, the corn straws are pulled down by the stalk pulling roller (13) and then are directly cut into pieces by the cutting movable knife (123) and the cutting fixed knife (125), so that dust pollution caused by straw crushing of the straw returning machine is reduced, the power consumption of the harvester is greatly reduced, and the requirement of high-speed harvesting is further met.
5. An arc-shaped chopping fixed knife (127) is installed at the corresponding position of a spiral guide cone (124) at the front end of the chopping knife roller (122), the arc-shaped chopping fixed knife (127) is installed on the ear picking roller support (11), the cutting edge of the arc-shaped chopping fixed knife (127) is matched with the spiral guide rib on the spiral guide cone (124), and the spiral guide rib of the spiral guide cone (124) is provided with a cutting edge (see figure 13). Therefore, the spiral guide cone (124) also plays a role in chopping straws, so that the residual part of the straws which cannot completely enter the roller cutter for rolling cutting is not too long, the crushing effect of the straws is ensured, and the problem that the straws and weeds are wound on the spiral guide cone (124) is also solved.
6. The conveying part (02) comprises a front-stage lifting conveyor (021) and a rear-stage lifting conveyor (022), the front-stage lifting conveyor (021) is installed in front of the peeling mechanism (031), the rear-stage lifting conveyor (021) is installed behind the peeling mechanism (031) and is located between the granary (05) and the peeling mechanism (031), the ears are peeled and then pass through, and the rear-stage lifting conveyor (021) is further conveyed upwards to enter the granary (05) to enable the granary (05) to be further heightened, so that the volume of the granary (05) is enlarged to meet the requirement for high-speed harvesting.
7. The peeling part (03) comprises a peeling mechanism (031), an impurity removal fan (032) and a bract crushing device (033), the bract crushing device (033) is installed at the outlet of a bract auger below the peeling mechanism (031), the top end of a preceding-stage elevator (021) is provided with a guide hood (211) and an impurity removal roller (212), the impurity removal fan (032) is installed at the upper part of the guide hood (211), a forward and reverse uniformly-distributed auger (311) and a fruit cluster uniformly-distributed guide groove (312) are arranged between the peeling mechanism (031) and the guide hood (211), reverse screws with the opposite spiral directions to the uniformly-distributed spiral direction in the middle are arranged at two ends of the forward and reverse uniformly-distributed auger (311), and the reverse screws at two ends fold longer leaves and broken rods inwards during harvesting, so that the problem of winding at two ends of the auger is solved; the front end of the peeling roller (313) extends forwards to the front of the front flow guide plate (315), a forced feeding wheel (314) is arranged above the front end of the peeling roller (313), and a plurality of groups of pressure feeding wheels (316) are arranged behind the forced feeding wheel (314) (see fig. 11 and 12). During operation, the front-stage elevator (021) conveys clusters, broken rods, leaves and other impurities harvested by the header part (01) to the top together, lighter impurities such as leaves are directly pumped away and discharged by an impurity removal fan (032), heavier impurities such as broken rods are clamped by an impurity removal roller (212) and conveyed into the impurity removal fan (032), and the heavier impurities are discharged by the impurity removal fan; the fruit clusters are guided by the guide cover (211) to fall into the fruit cluster uniformly-distributed guide grooves (312), the front and back uniformly-distributed screw feeders (311) uniformly convey and distribute the fruit clusters to the front end of the peeling roller (313), the fruit clusters can be uniformly peeled, the fruit clusters are forcibly conveyed backwards by the forced feeding wheel (314) and are fed into the peeling machine, and the accumulation and blockage of the fruit clusters are avoided.
8. The high-speed corn combine without row alignment and large feeding can also cancel a buffer spring (7) and a buffer head (8) below the floating ear picking plate (5), and the floating ear picking plate (5) is directly supported on the ear picking roller bracket (11).
9. The non-row large-feeding-quantity high-speed corn combine harvester is characterized in that a spiral guide cone (124), a cutting movable cutter (113) and a cutting fixed cutter (114) are manufactured into a combined structure, cutting blades made of different materials are arranged at cutting edges of the spiral guide cone (124), the cutting movable cutter (113) and the cutting fixed cutter (114), and the cutting blades can be welded on the spiral guide cone (124), the cutting movable cutter (113) and the cutting fixed cutter (114) or fixed on the spiral guide cone (124), the cutting movable cutter (113) and the cutting fixed cutter (114) through screws or rivets.
10. The non-row high-feeding-quantity high-speed corn combine harvester is characterized in that a stalk pulling roller (13) of an ear picking mechanism of a header part (01) adopts an arc-shaped ridge stalk pulling roller, namely ridge ribs of the stalk pulling roller (13) are made into an arc shape, and the ridge ribs of two pairs of the stalk pulling rollers are opposite when the corn combine harvester is installed (see fig. 2 and 6). When two pairs of ribs stagger during operation, the clearance between the stalk-pulling rollers becomes large, the feeding of the corn straws is convenient, the arc-shaped ribs can effectively clamp and pull the stalks downwards along with the rotation of the stalk-pulling rollers (13), and the defect that the corn straws are broken easily by the cutter-setting type stalk-pulling rollers and the impurity content is high is avoided.
11. In the non-row large-feeding-amount high-speed corn combine harvester, the mounting positions of the stem-pulling roller supports (132) at the front ends of the left and right stem-pulling rollers in the same group of stem-pulling rollers are staggered back and forth (see fig. 14). When in operation, when the corn straws pass through the stem-pulling roller support at the front end of the left stem-pulling roller, the spiral guide cone on the right side guides the corn straws backwards, and when the corn straws pass through the stem-pulling roller support at the front end of the right stem-pulling roller, the left stem-pulling roller downwards pulls the stems and conveys the corn straws, thereby solving the problem that the front end of the existing stem-pulling roller structure is easy to block when the corn straws are harvested at high speed.
12. The transmission mode of the header part (01) adopts a middle transmission structure, namely, the power transmitted by the host is transmitted to the middle ear picking transmission box through a plurality of transmission modes such as a transmission chain, a transmission belt, a transmission shaft, a gear transmission box, a hydraulic motor and the like (the transmission mode can be any one of the transmission modes such as the transmission chain, the transmission belt, the transmission shaft, the gear transmission box, the hydraulic motor and the like, and can also be the combined transmission power of two or more transmission modes), and then the power is transmitted to the ear picking transmission boxes at two sides by the middle ear picking transmission box (the transmission mode can be that the power is sequentially transmitted from the middle ear picking transmission box to the ear picking transmission boxes at two sides, and can also be that the power is respectively transmitted from the middle ear picking transmission box to the ear picking transmission boxes at two sides).

Claims (8)

1. The utility model provides a not high-speed maize combine of big feed amount of row, it is including header part (01), conveying part (02), skin edulcoration part (03), driver's cabin (04), granary (05) and chassis walking part (06), its characterized in that:
firstly, a header part (01) is provided with a quick cutting and feeding shifting wheel system at the front end of a stalk pulling roller (13), a cutting fixed knife (114) in the system is positioned above a cutting movable knife (113), and the cutting movable knife (113), an upper shifting wheel (115) and a lower shifting wheel (115) share the same transmission system with a shifting chain (3): the cutting knife seat (111) is arranged at the front lower end of the ear picking roller bracket (11), the cutting knife seat (111) can be adjusted back and forth on the ear picking roller bracket (11), the cutting knife shaft (112) is supported and arranged in the cutting knife seat (111) through a bearing, the cutting fixed knife (114) is fixed at the lower end of the cutting knife seat (111), is positioned above the cutting movable knife (113) and is matched with the cutting movable knife (113), the cutting movable knife (113) is arranged at the lower end of the cutting knife shaft (112), the reel sprocket (119) is arranged at the upper end of the cutting knife shaft (112), the reel sprocket (119) is used as a tension sprocket of the reel chain (3) and also as an input sprocket of the power of the cutting knife shaft (112), the lower end of the reel shaft (116) is in transmission connection with the upper end of the cutting knife shaft (112), the upper part of the reel shaft (116) is supported and arranged in the reel branch pipe (117) through a bearing, the lower ends of the branch pipes (117) of the reel are hinged with the front end of the front support of the stem-pulling roll cover, the upper parts of the branch pipes are connected with the rear end of the front support of the stem-pulling roll cover through branch pipe adjusting rods (118), the forward inclination angles of the branch pipes (117) of the reel and reel shafts (116) of the reel can be adjusted by adjusting the lengths of the branch pipe adjusting rods (118), and the upper end and the lower end of the reel shaft (116) are respectively provided with a reel (115);
the ear picking plate of the ear picking mechanism of the header part (01) adopts a self-adaptive adjustment ear picking plate mechanism: the corn harvester comprises a rotating shaft support (1), a floating rotating arm (2), a connecting rotating pin (4), a floating ear picking plate (5), an adjusting screw rod (9), a pre-tightening spring (10), a limiting screw (12) and a stem pulling roller (13), wherein the floating ear picking plate (5) is positioned above the stem pulling roller (13) and is arranged between an ear picking roller support (11) and a seedling pulling chain guide plate (3) and between the ear picking roller support and the seedling pulling chain guide plate (6), a buffer spring (7) and a buffer press head (8) are arranged below the floating ear picking plate (5), the floating rotating arm (2) is arranged on the ear picking roller support (11) through the rotating shaft support (1) and mainly comprises a floating rotating shaft (22), a floating moving arm (21) and a lower floating arm (23), the floating moving arm (21) is fixed at two ends of the floating rotating shaft (22), the upper end of the floating moving arm (21) is provided with the connecting rotating pin (4), and the connecting rotating pin (4) is hinged with the floating, the connecting rotating pin (4) is connected with a connecting seat (51) on the floating ear picking plate (5) through a fastener, the lower floating arm (23) is fixed on the floating rotating shaft (22), the lower end of the lower floating arm (23) is connected with a beam between the ear picking roller bracket (11) through an adjusting screw rod (9) and a pre-tightening spring (10), and the ear picking roller bracket (11) is provided with a limit screw (12) at a position corresponding to the upper floating arm (21) and the lower floating arm (23);
and a stem-drawing roller (13) of the ear picking mechanism of the header part (01) adopts a self-adaptive adjustment stem-drawing roller mechanism: the corn harvester comprises a weeding knife (131), a stalk-pulling roller support (132), a connecting fork (134), a guide rod (136), a guide spring (137) and a guide rod seat (138), wherein the guide rod seat (138) is additionally arranged on a snapping roller support (11), the guide rod (136) and the guide spring (137) are arranged in the guide rod seat (138), the excircle of the guide rod (136) is matched with the inner hole of the guide rod seat (138), the outer end of the guide rod (136) is provided with an adjusting nut (139) for adjusting the pretightening force of the guide spring (137), the middle part of the guide rod (136) is provided with a positioning step for limiting the telescopic range of the guide rod (136), the connecting fork (134) and a locking nut (135) are arranged at the inner end of the guide rod (136), the stalk-pulling roller support (132) is arranged in the connecting fork (134) through a connecting pin (133), and is arranged at the front end of a stalk-pulling roller (13) through a bearing, a weeding knife (131) is arranged below the stalk-pulling roller support (132), and the cutting edge of the weeding knife (131) corresponds to the rotary contour of the stalk-pulling roller (13);
a longitudinal roller cutter chopping device is arranged below an ear picking roller of the header part (01), a chopping transmission box (121) and an ear picking transmission box (120) are arranged in a transmission manner in an upper layer and a lower layer, the chopping transmission box (121) is arranged below the ear picking transmission box (120), an input shaft gear of the chopping transmission box (121) is meshed with a gear in the ear picking transmission box (120), power is taken out from the ear picking box and then transmitted to a chopping cutter roller (122) through conical gear rotation, the chopping cutter roller (122) is positioned below a stem pulling roller (13), a spiral guide cone (124) is arranged at the front end of the chopping cutter roller (122), chopping movable cutters (123) are uniformly arranged on the circumference of the chopping cutter roller (122), the chopping fixed cutters (125) are arranged on a fixed cutter bracket (126) on the ear picking roller bracket (11), and a gap between the chopping fixed cutters (125) and the chopping movable cutters (123) is adjustable;
the conveying part (02) comprises a front-stage lifting conveyor (021) and a rear-stage lifting conveyor (022), the front-stage lifting conveyor (021) is installed in front of the peeling mechanism (031), and the rear-stage lifting conveyor (022) is installed behind the peeling mechanism (031) and is positioned between the granary (05) and the peeling mechanism (031);
the peeling and impurity removing part (03) comprises a peeling mechanism (031), an impurity removing fan (032) and a bract crushing device (033), the bract crushing device (033) is arranged at the outlet of a bract auger below the peeling mechanism (031), a guide hood (211) and an impurity removing roller (212) are arranged at the top end of a preceding-stage elevator (021), the impurity removing fan (032) is arranged at the upper part of the guide hood (211), a positive and negative uniformly-distributed auger (311) and a fruit cluster uniformly-distributed guide groove (312) are arranged between the peeling mechanism (031) and the guide cover (211), reverse screws with the opposite rotation direction to the middle uniform spiral direction are arranged at the two ends of the forward and reverse uniform distribution screw feeder (311), the front end of the peeling roller (313) extends forwards to the front of the front flow guide plate (315), a forced feeding wheel (314) is arranged above the front end of the peeling roller (313), and a plurality of groups of pressure feeding wheels (316) are arranged behind the forced feeding wheel (314).
2. The row-free high-speed corn combine harvester according to claim 1, characterized in that: an arc-shaped chopping fixed knife (127) is installed at the corresponding position of a spiral guide cone (124) at the front end of the chopping knife roller (122), the arc-shaped chopping fixed knife (127) is installed on the snapping roller support (11), the cutting edge of the arc-shaped chopping fixed knife (127) is matched with the spiral guide rib on the spiral guide cone (124), and a cutting edge is arranged on the spiral guide rib of the spiral guide cone (124).
3. The row-free high-speed corn combine harvester according to claim 1, characterized in that: a buffer spring (7) and a buffer head (8) below the floating ear picking plate (5) are eliminated, and the floating ear picking plate (5) is directly supported on an ear picking roller bracket (11).
4. The row-free high-speed corn combine harvester according to claim 1, characterized in that: the cutting movable knife (113) and the cutting fixed knife (114) are manufactured into a combined structure, and cutting blades made of different materials are arranged at the cutting blade openings of the cutting movable knife (113) and the cutting fixed knife (114).
5. The row-free high-speed corn combine harvester according to claim 2, characterized in that: the spiral guide cone (124) and the arc-shaped chopping fixed knife (127) are manufactured into a combined structure, and cutting blades made of different materials are arranged at the cutting edges of the spiral guide cone (124) and the arc-shaped chopping fixed knife (127).
6. The row-free high-feed-rate corn combine harvester according to any one of claims 1 to 5, characterized in that: the stem pulling roller (13) of the ear picking mechanism of the header part (01) adopts an arc opposite edge stem pulling roller, namely, the edge ribs of the stem pulling roller (13) are made into an arc shape, and the arc edge ribs of the two pairs of stem pulling rollers are opposite when the stem pulling roller is installed.
7. The row-free high-feed-rate corn combine harvester according to any one of claims 1 to 5, characterized in that: the mounting positions of the stem drawing roller supports (132) at the front ends of the left and right stem drawing rollers in the same group of stem drawing rollers are staggered front and back.
8. The row-free high-feed-rate corn combine harvester according to any one of claims 1 to 5, characterized in that: the header part (01) adopts a middle transmission structure, namely, the power transmitted by the main machine is firstly transmitted to the middle ear picking transmission case and then transmitted to the ear picking transmission cases at two sides by the middle ear picking transmission case.
CN201920439512.6U 2019-03-23 2019-03-23 High-speed corn combine harvester with large feeding amount and no row alignment Active CN209824441U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920439512.6U CN209824441U (en) 2019-03-23 2019-03-23 High-speed corn combine harvester with large feeding amount and no row alignment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920439512.6U CN209824441U (en) 2019-03-23 2019-03-23 High-speed corn combine harvester with large feeding amount and no row alignment

Publications (1)

Publication Number Publication Date
CN209824441U true CN209824441U (en) 2019-12-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920439512.6U Active CN209824441U (en) 2019-03-23 2019-03-23 High-speed corn combine harvester with large feeding amount and no row alignment

Country Status (1)

Country Link
CN (1) CN209824441U (en)

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