CN102150503B - Combine harvester - Google Patents
Combine harvester Download PDFInfo
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- CN102150503B CN102150503B CN201110064879.2A CN201110064879A CN102150503B CN 102150503 B CN102150503 B CN 102150503B CN 201110064879 A CN201110064879 A CN 201110064879A CN 102150503 B CN102150503 B CN 102150503B
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- threshing
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Abstract
The invention relates to an agricultural machine, in particular to a combine harvester. The combine harvester comprises a harvesting table, an operating table, a threshing system, a gear box, an engine, a stalks transmitting chain, a stander, a travelling mechanism and a second cleaning system; the stander is fixedly arranged on the travelling mechanism; the travelling mechanism comprises a front guide wheel, a back driving wheel, a thrust wheel and two crawler belts; the harvesting table, the operating table, the threshing system, the gear box and the engine are fixedly arranged on the stander, the engine is arranged behind a complete machine and connected with a back driving wheel shaft in the travelling mechanism by the gear box; and the threshing system is arranged between the two crawler belts of the travelling mechanism, and the second cleaning system is arranged under the threshing system. The combine harvester changes the structure of the traditional harvester, the structure is simpler and more reasonable, and the work efficiency can be greatly improved.
Description
Technical Field
The invention relates to agricultural machinery, in particular to a combine harvester.
Background
Most of the existing combine harvesters are constructed as shown in fig. 1 and 2, and the structure is not reasonable enough, so that the following problems can occur.
Firstly, the engine is arranged in front and is positioned below the operating platform, so that the position of the threshing cylinder must be arranged in the left direction of the whole machine, namely above the left crawler. This structure brings about the following adverse effects.
1. The header right stalk carries the lifting chain longer, leads to the length overlength of header itself.
2. The position of the threshing cylinder is forced to be raised, so that the threshing mode can only adopt a lower threshing mode.
3. The engine drives the front wheels, which results in increased wear on the track during forward travel and reduced traction efficiency of the engine.
4. The vibration and noise amplitude of the operating platform and even the whole machine is too large, so that the service life of the whole machine is shortened, and the operation experience of an operator is seriously influenced.
Secondly, because the stalk conveying part is arranged below the threshing cylinder, the grains pass through the lower part of the threshing cylinder along with the stalk conveying part and are threshed. Under the structure, the ear head of the grain is drooped and is inconsistent with the movement direction of the threshing nails on the threshing cylinder, so the ear head is easy to break. Most sundries are poured into the concave sieve and piled up, the threshing system of the existing semi-feeding combine harvester is open, most sundries are poured into the concave sieve, the blockage is easy to cause, a large amount of grains cannot pass through the concave sieve, but fall on the sundries and are discharged along with the sundries, and the waste of grains is caused. And flying sundries are easy to fly into the cleaning system, block the cleaning device and influence the cleaning work. The blockage is easily caused, a large amount of grains can not pass through the concave plate sieve and fall on the sundries and are discharged along with the stalk of the sundries, and the waste of the grains is caused. And flying sundries are easy to fly into the cleaning system, block the cleaning device and influence the cleaning work.
The cleaning system of the combine harvester in the existing market mainly comprises a vibrating screen, a blowing fan, a suction fan, a secondary horizontal auger, an inclined auger, a grass discharge chain and the like, and is very complex in structure and high in manufacturing cost and maintenance cost. And because the components are all arranged below the threshing cylinder and the grass discharge chain, a large space is occupied, and the threshing cylinder has to be lifted. The threshing cylinder is high, so that the gravity center of the whole machine is lifted, the stability of the whole machine is influenced, and the lifting height and the difficulty of the header are increased. The threshing method causes problems such as easy blockage of the concave sieve, waste of grains discharged with impurities and the like.
Fourthly, in the design of the grass discharging chain structure of the existing combine harvester, because the roller is deviated to the left, the straw is prevented from being accumulated on the unharvested crops when being directly discharged, and segmented conveying is adopted, but the mode easily causes the unsmooth conveying of the connection part of the grass discharging chain to form blockage.
And fifthly, because the movement direction of the grain lifting and poking teeth of the cutting platform of the existing combine harvester is vertical to the advancing direction of the harvester, the grain lifting and poking teeth have difficulty in lifting the crops with the lodging direction consistent with the movement direction of the grain lifting and poking fingers, and the crops are difficult to harvest.
Disclosure of Invention
The invention aims to solve the problems and provide a combine harvester which has a simpler and more reasonable structure and can greatly improve the working efficiency.
The invention is realized by the following technical scheme.
A combine harvester comprises a header, an operation table, a threshing system, a gearbox, an engine, a stalk conveying chain, a frame, a traveling mechanism and a secondary cleaning system; the frame is fixedly arranged on the travelling mechanism; the walking mechanism comprises a front guide wheel, a rear driving wheel, a thrust wheel and a crawler; the cutting table, the operating table, the threshing system, the gearbox and the engine are fixedly arranged on the rack, and the engine is arranged behind the whole machine and is connected with a rear driving wheel shaft in the travelling mechanism through the gearbox; the threshing system is arranged between two crawler belts of the walking mechanism, and the secondary cleaning system is arranged under the threshing system.
The threshing system comprises a roller cover, a roller, a conveying part and a concave plate sieve, wherein the roller cover is hinged on the rack, the roller is arranged on the rack through a shaft and is connected with the gear box through a belt pulley arranged on the shaft; the concave sieve is fixedly arranged on the frame, the stem pressing plate of the conveying component is arranged on the roller cover, the conveying chain of the conveying component is arranged on the frame, and the concave sieve is fixedly provided with a secondary threshing nail. The stalk transport component is located on the upper side of the outer side of the roller.
The secondary threshing nail comprises a nail body and a nut, the nail body is triangular, and a section of screw matched with the nut extends from the bottom edge of the triangle.
The secondary threshing nails are arranged on the concave plate sieve in an equidistant rectangular array.
The threshing teeth in the transverse rows and the vertical rows on the roller are arranged in a rectangular array and are staggered with the secondary threshing nails.
The tail end of the roller is provided with a roller spiral grass discharging fan blade.
The cleaning system comprises a fan and an auger, and further comprises a first air deflector, a second air deflector and a grain gathering bin, wherein the grain gathering bin is V-shaped, is fixedly connected to the rack and is positioned under the threshing cylinder, the auger is arranged at the lower part of the grain gathering bin, the first air deflector and the second air deflector are V-shaped and are not connected with each other, are positioned between the threshing cylinder and the grain gathering bin and are approximately parallel to the grain gathering bin; the upper end of the second air deflector is connected with the corresponding end of the grain gathering bin to form a cylindrical bin, and a fan is installed in the cylindrical bin.
Cleaning system includes fan, screw feeder, its characterized in that: the grain gathering bin is V-shaped, is fixedly connected to the rack and is positioned right below the threshing cylinder, the lower part of the grain gathering bin is provided with an auger, and the wind deflector I and the wind deflector II are V-shaped and are not connected with each other, are positioned between the threshing cylinder and the grain gathering bin and are approximately parallel to the grain gathering bin; the upper end of the second air deflector is connected with the corresponding end of the grain gathering bin to form a cylindrical bin, and a fan is installed in the cylindrical bin.
The lower end of the first air guide plate crosses the extension line of the first air guide plate, and the distance between the lower end of the first air guide plate and the second air guide plate is 20 mm-100 mm.
The upper end of the first air deflector and the corresponding end of the grain gathering bin form a trash discharging opening; the upper part of the upper end of the air deflector is provided with an adjusting device, and the adjusting device is connected with an engine throttle control lever through a pull wire; and the upper part of the upper end of the air deflector is provided with an adjusting device, and the adjusting device is connected with an engine throttle control lever through a pull wire.
The header is including cutting pedestal, gear box, transversely holding up standing grain mechanism, support, cutting pedestal fixed connection is on the support, and gear box and transversely holding up standing grain mechanism fixed connection are on cutting the pedestal, transversely hold up standing grain mechanism with link to each other its characterized in that through chain and gear box: the vertical grain-supporting mechanism comprises a grain-supporting claw, a grain-supporting chain and a transmission chain, the grain-supporting claw is hinged on the grain-supporting chain, and the grain-supporting chain is connected with the gear box through the transmission chain.
The beneficial effects of the invention are as follows.
After the engine is arranged, the space in the whole machine can be fully utilized, and the position of the threshing cylinder is moved to the center of the whole machine, namely the space between the left track and the right track is vacant. The advantages of this are: the length of the lifting chain conveyed by the left and right stalks of the header is basically close to that of the header, so that the length of the header can be saved; the position of the threshing cylinder is reduced, so that the threshing mode can adopt an upper threshing mode; the engine drives the rear wheels, reduces the abrasion to the crawler belt in the advancing process, and increases the traction force of the engine. The vibration and noise amplitude of the operating platform and the whole machine are greatly reduced due to the rear engine, and the comfort of an operator is greatly enhanced.
Compared with the traditional underneath type threshing system, the invention adopts a mode that the conveying part lifts the height, so that grains pass through the upper part of the roller and are threshed. Under the condition, the ear heads of the grains naturally hang down, the angle formed by the grain heads and the movement direction of the threshing nails on the roller is favorable for grain threshing, and excessive ear breakage can be avoided, so that the threshing is more thorough. Due to the fact that grains are arranged on the upper portion, secondary threshing nails can be additionally arranged on the concave plate sieve below the roller.
Compared with the traditional threshing system, the threshing system has the advantages that the structure is greatly simplified, and the manufacturing, using and maintaining costs are reduced. The invention adds secondary threshing nails and abandons a complex secondary threshing auxiliary roller device. After the grains enter the roller, the grains are threshed primarily by the roller, and part of the broken ears and the sundry scraps rotate along with the roller and impact secondary threshing nails on the concave plate sieve to perform secondary threshing. In the threshing mode, due to the blocking of the secondary threshing nails and the continuous stirring of the roller, sundries accumulated on the concave sieve are discharged out of the threshing bin along with the rotation of the grass discharging fan blades and are discharged along with the threshed stalks to the rear of the machine body, the blocking condition of the concave sieve is relieved, grains contained in the sundries are stirred and fall into the concave sieve, the threshing rate of grains is improved, and the grains are threshed more thoroughly.
The invention makes subversion reform on the existing cleaning system, and omits a complex vibrating screen, a secondary horizontal screw conveyor, an inclined screw conveyor and a suction fan complete system. The structure design is reasonable and simple, the manufacturing and maintenance cost is reduced, the space at the lower part of the harvester is fully utilized, and the height of the threshing cylinder is reduced.
The invention is additionally provided with a longitudinal grain-supporting system in the direction consistent with the advancing direction of the whole machine, and the grain-supporting function which is difficult to be achieved by the transverse grain-supporting fingers is just played for crops in the lodging direction consistent with the moving direction of the transverse grain-supporting fingers, so that the dead angle of crop harvesting is greatly reduced.
Drawings
Fig. 1 is a schematic view of the overall structure of a conventional combine harvester.
Fig. 2 is a schematic top view of fig. 1.
Fig. 3 is a schematic view of the overall structure of the present invention.
FIG. 4 is a schematic top view of FIG. 3 according to the present invention.
Fig. 5 is a schematic view of the threshing system according to the present invention.
FIG. 6 is a right side view of FIG. 3 according to the present invention.
FIG. 7 is an enlarged view of portion A of FIG. 3 according to the present invention.
Fig. 8 is a schematic structural view of a cleaning system of the invention.
Fig. 9 is a schematic structural diagram of the header of the present invention.
Fig. 10 is a left side view structural diagram of fig. 9 according to the present invention.
In the figure, the header 1, the header base 11, the gear box 12, the transverse grain lifting mechanism 13, the bracket 14, the longitudinal grain lifting mechanism 15, the grain lifting chain 152, the conveying chain 153, the grain divider 16, the operating platform 2, the threshing system 3, the roller cover 31, the roller 32, the stalk conveying component 33, the concave plate sieve 34, the secondary threshing nail 35, the nail body 351, the nut 352, the roller spiral grass discharging fan blade 36, the gearbox 4, the engine 5, the stalk conveying chain 6, the frame 7, the traveling mechanism 8, the front guide wheel 81, the rear driving wheel 82, the secondary cleaning system 9, the first air deflector 91, the second air deflector 92, the fan 93, the grain gathering bin 94 and the auger 95.
Detailed Description
The invention is further illustrated below with reference to examples and figures.
The first embodiment.
As shown in fig. 3 and 4, the combine harvester comprises a header 1, an operation table 2, a threshing system 3, a gearbox 4, an engine 5, a stalk conveying chain 6, a frame 7, a traveling mechanism 8 and a secondary cleaning system 9; the frame 7 is fixedly arranged on the travelling mechanism 8; the travelling mechanism 8 comprises a front guide wheel 81, a rear driving wheel 82, a thrust wheel and a crawler; the header 1, the operating platform 2, the threshing system 3, the gear box 4 and the engine 5 are fixedly arranged on the frame 7,wherein,the engine 5 is arranged at the rear part of the whole machine and is connected with a rear driving wheel 82 in the travelling mechanism 8 through a gearbox 4; the threshing system 3 is arranged between two crawler belts of the walking mechanism, and the secondary cleaning system 9 is arranged under the threshing system 3.
As shown in fig. 5 and 6, the threshing system 3 comprises a roller cover 31, a roller 32, a stalk conveying part 33 and a concave sieve 34, wherein the roller cover 31 is hinged on the frame 7, the roller 32 is arranged on the frame 7 through a shaft and is connected with the gear box through a belt pulley arranged on the shaft; the concave sieve 34 is fixedly arranged on the frame 7, the stem pressing plate 331 of the stem conveying part 33 is arranged on the drum cover 31, the conveying chain 332 of the stem conveying part 33 is arranged on the frame 7, and the concave sieve 34 is fixedly provided with a secondary threshing nail 35; the stem conveying member 33 is located on the upper side of the outside of the drum 32. The secondary threshing pins 35 are arranged on the concave sieve 34 in an equidistant rectangular array. The tail end of the roller 32 is provided with a roller spiral grass discharging fan blade 36.
As shown in fig. 7, the secondary threshing nail 35 includes a nail body 351 and a nut 352, the nail body 351 is triangular, and a screw rod matched with the nut 352 extends from the bottom edge of the triangle.
As shown in fig. 8, the cleaning system 9 includes a fan 93 and an auger 95, and is characterized in that: the threshing mechanism further comprises a first air deflector 91, a second air deflector 92 and a grain gathering bin 94, wherein the grain gathering bin 94 is V-shaped, is fixedly connected to the rack 7 and is positioned right below the threshing cylinder, an auger 95 is arranged at the lower part of the grain gathering bin 94, the first air deflector 91 and the second air deflector 92 are V-shaped and are not connected with each other, are positioned between the threshing cylinder and the grain gathering bin 94 and are approximately parallel to the grain gathering bin 94; the upper end of the second air deflector 92 is connected with the corresponding end of the grain gathering bin 94 to form a cylindrical bin, and a fan 93 is installed in the cylindrical bin.
The lower end of the second air guide plate 92 crosses the extension line of the first air guide plate 91, and the distance between the lower end of the first air guide plate 91 and the second air guide plate 92 is 20 mm.
The upper end of the first air deflector 91 and the corresponding end of the grain gathering bin 94 form a trash discharging port 97; the upper part of the upper end of the first air deflector 91 is provided with an adjusting device 98, and the adjusting device is connected with an engine throttle control lever through a pull wire; an adjusting device 98 is installed on the upper portion of the upper end of the first air deflector 91, and the adjusting device is connected with an engine throttle control lever through a pull wire.
Example two.
The distance between the lower end of the first air guide plate 1 and the second air guide plate 92 is 50 mm. The other structure is the same as the first embodiment.
Example three.
The distance between the lower end of the first air deflector 1 and the second air deflector 92 is 80 mm. The other structure is the same as the first embodiment.
Example four.
The distance between the lower end of the first air guide plate 1 and the second air guide plate 92 is 100 mm. The other structure is the same as the first embodiment.
Claims (4)
1. A combine harvester comprises a header (1), an operation table (2), a threshing system (3), a gearbox (4), an engine (5), a stalk conveying chain (6), a frame (7), a traveling mechanism (8) and a secondary cleaning system (9); the frame (7) is fixedly arranged on the travelling mechanism (8); the travelling mechanism (8) comprises a front guide wheel (81), a rear driving wheel (82), a thrust wheel and a crawler; header (1), operation panel (2), threshing system (3), gearbox (4) and engine (5) fixed mounting are on frame (7), its characterized in that: the engine (5) is arranged at the rear part of the whole machine and is connected with a rear driving wheel (82) in the travelling mechanism (8) through a gearbox (4) in a shaft way; the threshing system (3) is positioned between two crawler belts of the travelling mechanism, and the secondary cleaning system (9) is arranged right below the threshing system (3); the threshing system (3) comprises a roller cover (31), a roller (32), a conveying part (33) and a concave plate sieve (34), wherein the roller cover (31) is hinged on the rack (7), and the roller (32) is arranged on the rack (7) through a shaft and is connected with the gear box through a belt pulley arranged on the shaft; the concave sieve (34) is fixedly arranged on the frame (7), a stem pressing plate (331) of the stem conveying part (33) is arranged on the roller cover (31), a conveying chain (332) of the stem conveying part (33) is arranged on the frame (7), and a secondary threshing nail (35) is fixedly arranged on the concave sieve (34); the conveying part (33) is positioned on the upper side of the outer side of the roller (32), the secondary threshing nails (35) comprise nail bodies (351) and nuts (352), the nail bodies (351) are triangular, a section of screw matched with the nuts (352) extends from the bottom edge of each triangle, and the secondary threshing nails (35) are arrayed on the concave plate sieve (34) in an equidistant rectangular array.
2. A combine harvester according to claim 1, wherein: the threshing teeth in the horizontal row and the vertical row on the roller (32) are arranged in a rectangular array and are staggered with the secondary threshing nails (35).
3. A combine harvester according to claim 1, wherein: the tail end of the roller (32) is provided with a roller spiral grass discharging fan blade (36).
4. A combine harvester comprises a header (1), an operation table (2), a threshing system (3), a gearbox (4), an engine (5), a stalk conveying chain (6), a frame (7), a traveling mechanism (8) and a secondary cleaning system (9); the frame (7) is fixedly arranged on the travelling mechanism (8); the travelling mechanism (8) comprises a front guide wheel (81), a rear driving wheel (82), a thrust wheel and a crawler; header (1), operation panel (2), threshing system (3), gearbox (4) and engine (5) fixed mounting are on frame (7), its characterized in that: the engine (5) is arranged at the rear part of the whole machine and is connected with a rear driving wheel (82) in the travelling mechanism (8) through a gearbox (4) in a shaft way; the threshing system (3) is positioned between two crawler belts of the travelling mechanism, and the secondary cleaning system (9) is arranged right below the threshing system (3); the cleaning system (9) comprises a fan (93), an auger (95), a first air deflector (91), a second air deflector (92) and a grain gathering bin (94), wherein the grain gathering bin (94) is V-shaped, is fixedly connected to the rack (7) and is positioned under the threshing cylinder, the auger (95) is arranged at the lower part of the grain gathering bin (94), the first air deflector (91) and the second air deflector (92) are in V-shapes which are not connected with each other, are positioned between the threshing cylinder and the grain gathering bin (94) and are approximately parallel to the grain gathering bin (94); the upper end of the second air deflector (92) is connected with the corresponding end of the grain gathering bin (94) to form a cylindrical bin, a fan (93) is installed in the cylindrical bin, the header (1) comprises a cutting pedestal (11), a gear box (12), a transverse grain lifting mechanism (13) and a support (14), the cutting pedestal (11) is fixedly connected to the support (14), the gear box (12) and the transverse grain lifting mechanism (13) are fixedly connected to the cutting pedestal (11), the transverse grain lifting mechanism (13) is connected with the gear box (12) through a chain, the header further comprises a longitudinal grain lifting mechanism (15) connected to the cutting pedestal (11) and aligned with a sharp point of a grain divider (16), the longitudinal grain lifting mechanism (15) comprises a grain lifting claw (151), a grain lifting chain (152) and a conveying chain (153), the grain lifting claw (151) is hinged to the grain lifting chain (152), and the grain lifting chain (152) is connected with the gear box (12) through the conveying chain (153), the lower end of the second air deflector (92) crosses the extension line of the first air deflector (91), the distance between the lower end of the first air deflector (91) and the second air deflector (92) is 20mm to 100mm, and the upper end of the first air deflector (91) and the corresponding end of the grain gathering bin (94) form a trash discharging opening (97); an adjusting device (98) is installed on the upper portion of the upper end of the first air deflector (91), and the adjusting device is connected with an engine throttle control lever through a pull wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110064879.2A CN102150503B (en) | 2011-03-17 | 2011-03-17 | Combine harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110064879.2A CN102150503B (en) | 2011-03-17 | 2011-03-17 | Combine harvester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102150503A CN102150503A (en) | 2011-08-17 |
| CN102150503B true CN102150503B (en) | 2014-06-11 |
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ID=44432435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110064879.2A Expired - Fee Related CN102150503B (en) | 2011-03-17 | 2011-03-17 | Combine harvester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102150503B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102656992A (en) * | 2012-05-17 | 2012-09-12 | 广西汽牛农业机械股份有限公司 | Whole-feed combine harvester with double-cutting vertical header and harvesting method thereof |
| WO2014030612A1 (en) * | 2012-08-24 | 2014-02-27 | ヤンマー株式会社 | Combine |
| CN104041238B (en) * | 2013-11-05 | 2016-08-17 | 广西三零一机械有限公司 | A kind of small harvester |
| CN104350876B (en) * | 2014-11-12 | 2016-06-29 | 重庆五谷通用设备有限公司 | A kind of rice combine threshing weed breaker structure |
| BR202021017116U2 (en) * | 2021-08-30 | 2021-12-28 | Rcc Fabrica De Pecas E Componentes Agricolas Ltda | Coupling implement for two-line cutting |
| CN117016207A (en) * | 2023-09-13 | 2023-11-10 | 山东常林派克农业机械有限公司 | Anti-blocking self-cleaning combine harvester |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2309701Y (en) * | 1997-09-16 | 1999-03-10 | 四川省温江和盛机械厂 | Cleaning thresher |
| CN2855037Y (en) * | 2005-08-02 | 2007-01-10 | 海永红 | Forced straw feeding device of harvesting seeder and chain creeper multipurpose harvesting seeder |
| CN201008278Y (en) * | 2007-02-13 | 2008-01-23 | 山东巨明机械有限公司 | Secondary cleaning and selecting device for granary top-arrangement |
| CN201967342U (en) * | 2011-03-17 | 2011-09-14 | 夏发明 | Combine harvester |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4095776B2 (en) * | 2001-07-10 | 2008-06-04 | 三菱農機株式会社 | Combine |
-
2011
- 2011-03-17 CN CN201110064879.2A patent/CN102150503B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2309701Y (en) * | 1997-09-16 | 1999-03-10 | 四川省温江和盛机械厂 | Cleaning thresher |
| CN2855037Y (en) * | 2005-08-02 | 2007-01-10 | 海永红 | Forced straw feeding device of harvesting seeder and chain creeper multipurpose harvesting seeder |
| CN201008278Y (en) * | 2007-02-13 | 2008-01-23 | 山东巨明机械有限公司 | Secondary cleaning and selecting device for granary top-arrangement |
| CN201967342U (en) * | 2011-03-17 | 2011-09-14 | 夏发明 | Combine harvester |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2003-23841A 2003.01.28 |
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| CN102150503A (en) | 2011-08-17 |
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