CN109496564B - Corn harvester power transmission system - Google Patents
Corn harvester power transmission system Download PDFInfo
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- CN109496564B CN109496564B CN201811619356.8A CN201811619356A CN109496564B CN 109496564 B CN109496564 B CN 109496564B CN 201811619356 A CN201811619356 A CN 201811619356A CN 109496564 B CN109496564 B CN 109496564B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D69/00—Driving mechanisms or parts thereof for harvesters or mowers
- A01D69/06—Gearings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/14—Measures for saving energy, e.g. in green houses
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Abstract
The invention discloses a power transmission system of a corn harvester; comprises a walking power transmission unit and a working power transmission unit which are arranged on a chassis frame; the walking power transmission unit comprises an engine, a drive axle, a steering axle, a four-wheel drive gear box and a transmission mechanism; the first output shaft of the engine is connected with the drive axle through a first transmission assembly, the four-wheel drive gear box is arranged at the bottom of the drive axle, and the output end of the four-wheel drive gear box is in transmission connection with the input end of the steering axle through a transmission mechanism; the working power transmission unit comprises a header and a returning transmission mechanism, an elevator transmission shaft, a main transmission two shaft, a main transmission one shaft and a peeler transmission mechanism; the header and returning transmission mechanism comprises a transfer case group, a returning cutter shaft distributed at the bottom of the front side of the transfer case group, a header returning speed change device distributed below one side of the transfer case group and a header auger shaft distributed behind the transfer case group; the stripper transmission mechanism comprises a stripper input cross shaft, a stripper roller shaft group and a stripper shaft group.
Description
Technical Field
The invention relates to a power transmission system of a corn harvester, and belongs to the technical field of agricultural machinery.
Background
With the wide application of agricultural mechanized equipment, domestic corn harvesting has been basically mechanized. The self-developed corn harvesting machine in China has been used for more than 40 years. At present, the product quality and the technical content of the corn harvester in China need to be improved. Many manufacturers simply simulate early-introduced prototypes by a complete machine, so that a plurality of prototypes have different sizes, repeated manufacturing and reliability in the aspects of harvesting technology and structural parameters, and unreasonable design mechanisms still exist. The power transmission system of the traditional two-row self-propelled corn harvester adopts a plurality of groups of gearbox structures besides adopting chain wheels and belt transmission, and has the advantages of complex structure, higher cost and difficult maintenance.
Disclosure of Invention
Aiming at the problems, the invention aims to provide a corn harvester power transmission system which is small in transmission occupied space and reliable in transmission.
In order to achieve the above purpose, the present invention adopts the following technical scheme: a corn harvester power transmission system, characterized in that: comprises a walking power transmission unit and a working power transmission unit which are arranged on a chassis frame;
the walking power transmission unit comprises an engine, a drive axle, a steering axle, a four-wheel drive gear box and a transmission mechanism; the first output shaft of the engine is connected with the drive axle through a first transmission assembly, the four-wheel drive gear box is arranged at the bottom of the drive axle, a gear arranged in the four-wheel drive gear box is meshed with a gear arranged in the drive axle, and the output end of the four-wheel drive gear box is in transmission connection with the input end of the steering axle through a transmission mechanism;
the working power transmission unit comprises a header and a returning transmission mechanism, an elevator transmission shaft, a main transmission two shaft, a main transmission one shaft and a peeler transmission mechanism which are distributed on the chassis frame in the forward direction from the front part to the rear part of the chassis frame; the header and returning transmission mechanism comprises a transfer case group, a returning cutter shaft distributed at the bottom of the front side of the transfer case group, a header returning speed change device distributed below one side of the transfer case group and a header auger shaft distributed behind the transfer case group; the header returning speed change device comprises a first power input shaft and a second power output shaft which are distributed up and down and are driven by gears; the second power output shaft is connected with an output shaft of the transfer case group which is distributed on the same side through a second transmission assembly, one end of the first power input shaft is connected with one end of the returning cutter shaft through a third transmission assembly, and the other output shaft of the transfer case group which is positioned on the opposite side of the cutting table returning speed change device is connected with one end of the cutting table auger shaft through a fourth transmission assembly;
the main transmission two shafts are connected with the other end of the first power input shaft through a fifth transmission assembly, the main transmission two shafts are connected with the transmission shaft of the elevator through a sixth transmission assembly, and the main transmission two shafts are connected with the main transmission one shaft through a seventh transmission assembly;
the main transmission first shaft is connected with a second output shaft of the engine through an eighth transmission assembly;
the peeling machine transmission mechanism comprises a peeling input cross shaft connected with a main transmission one shaft through a ninth transmission component, a peeling roll shaft group which is positioned behind the peeling input cross shaft and is orthogonally distributed with the peeling input cross shaft, and a ear poking shaft group which is distributed above the peeling roll shaft group and is parallel to the peeling input cross shaft; the ear stripping input cross shaft is in transmission connection with the stripping roll shaft group, so that two adjacent stripping roll shafts in the stripping roll shaft group do relative reverse circular motion; one end of any two adjacent ear-picking shafts in the ear-picking shaft group is connected with one end of any two adjacent ear-picking shafts in the ear-picking shaft group through a tenth transmission assembly, and any ear-picking shaft in the ear-picking shaft group is connected with one main transmission shaft through an eleventh transmission assembly.
Preferably, gears are arranged at the input ends of the plurality of peeling roller shafts in the peeling roller shaft group, which are close to one side of the peeling input transverse shaft, and two adjacent gears are meshed with each other; a driving gear is arranged at the end part of the input end of at least one peeling roller shaft, and an input gear meshed with the driving gear is arranged on the peeling input cross shaft.
Preferably, a fan device is arranged on the outer side of the elevator of the corn harvester, and a power shaft of the fan device is connected with a main transmission shaft through a twelfth transmission assembly.
Preferably, the first transmission assembly, the eighth transmission assembly and the twelfth transmission assembly are all belt transmission assemblies; the second transmission assembly, the third transmission assembly, the fourth transmission assembly, the fifth transmission assembly, the sixth transmission assembly, the seventh transmission assembly, the ninth transmission assembly, the tenth transmission assembly and the eleventh transmission assembly are all chain transmission assemblies.
Preferably, a recovery auger shaft is arranged below the peeler transmission mechanism, and any two adjacent ear-pulling shafts in the recovery auger shaft and the ear-pulling shaft group share a transmission chain.
Preferably, the transmission mechanism is a plurality of groups of transmission shafts which are connected between the output end of the four-wheel drive gearbox and the input end of the steering axle and are matched in a transmission manner;
or the transmission mechanism is a speed ratio steering device arranged below the middle part of the chassis frame; the speed ratio steering device comprises a first speed ratio conversion seat body, a second speed ratio conversion seat body, a first transmission shaft, a second transmission shaft, a four-wheel drive transition shaft, a first gear, a second gear, a third gear and a fourth gear; the first speed ratio conversion seat body and the second speed ratio conversion seat body are arranged below the middle part of the chassis seat at a forward interval, the first transmission shaft is rotationally connected to the first speed ratio conversion seat body, the second transmission shaft is positioned on the opposite side of the first transmission shaft and rotationally connected to the second speed ratio conversion seat body, the first gear is positioned on the inner side of the first speed ratio conversion seat body and sleeved on the first transmission shaft, the fourth gear is positioned on the inner side of the second speed ratio conversion seat body and sleeved on the second transmission shaft, the four-wheel drive transition shaft is rotationally connected between the first speed ratio conversion seat body and the second speed ratio conversion seat body, the second gear and the third gear are respectively sleeved on the four-wheel drive transition shaft, the first gear and the second gear are meshed, and the third gear and the fourth gear are meshed; the output end of the four-wheel drive gear box is connected with the output end of the first transmission shaft through a universal transmission shaft, and the output end of the second transmission shaft is connected with the input end of the steering axle through a universal transmission shaft.
Preferably, a mechanical carrying rod is arranged on the drive axle and is used for controlling the separation or engagement of a built-in gear of the four-wheel drive gearbox and a built-in gear of the drive axle; a control handle in transmission connection with the mechanical carrying rod is arranged in the driving control chamber; the main transmission shaft is supported and arranged on the chassis frame through a mounting frame, a riding wheel used for adjusting tensioning or loosening of a transmission belt in an eighth transmission assembly between the main transmission shaft and the engine is arranged on the mounting frame, and a working clutch operation handle connected with the riding wheel through a mechanical connecting rod is arranged in a driving control room of the corn harvester.
Preferably, the peeler transmission mechanism is supported and arranged on the chassis frame through a peeler frame; the eleventh transmission assembly comprises a ear-poking driving sprocket fixed at the other end of any ear-poking shaft in the ear-poking shaft group, an ear-poking main input sprocket fixed on one main transmission shaft, an ear-poking fixed sprocket and an ear-poking adjusting sprocket which are arranged on the frame of the peeler and are distributed on the same side with the ear-poking driving sprocket; the ear-picking driving chain wheel, the ear-picking main input chain wheel, the ear-picking fixed chain wheel and the ear-picking adjusting chain wheel are matched with an ear-picking chain, and the ear-picking driving chain wheel is positioned at the outer side of the ear-picking chain and meshed with the ear-picking chain; the ear-pulling adjusting chain wheel is fixedly arranged on the stripper frame through a connecting shaft, a long hole is formed in the stripper frame, one end of the connecting shaft penetrates through the long hole and is fixed on the stripper frame through a fastener, and the ear-pulling adjusting chain wheel is rotatably arranged at the other end of the connecting shaft; a tension wheel device for adjusting the tightness of a transmission chain on a ninth transmission assembly between the main transmission shaft and the ear stripping input cross shaft is arranged on the stripper frame; and a tension wheel device for adjusting the tightness of a transmission chain shared between any two adjacent ear-pulling shafts in the recovery auger shaft and the ear-pulling shaft group is arranged on the frame of the stripper.
Preferably, the fan device is arranged on the outer side of the elevator through a fan frame, and a tension wheel device for adjusting the tightness of a transmission belt of the twelfth transmission assembly is arranged on the fan frame; the engine is mounted on the chassis frame through an engine bracket, and a tension wheel device for adjusting the tightness of a transmission belt on a first transmission assembly between a first output shaft of the engine and a drive axle is mounted on the engine bracket.
Preferably, the transfer case group comprises two transfer cases which are coaxially installed, and each transfer case is in a four-sided power output form; each transfer case comprises two first output shafts extending out of the front side surfaces of the transfer case, two second output shafts extending out of the upper side surfaces of the transfer case, and third output shafts extending out of the left side surfaces and the right side surfaces of the transfer case.
The invention adopts the technical proposal, and has the following advantages: the invention realizes the stable operation of the whole corn harvester by transmitting the power of the engine to the header and the returning transmission mechanism, the elevator transmission shaft and the peeler transmission mechanism through the primary transmission shaft and the primary transmission shaft, can greatly reduce the transmission occupation space, simultaneously ensures the transmission reliability, and overcomes the problems of high cost and difficult maintenance in the prior art when a plurality of groups of gearbox structures are adopted for transmission.
Drawings
FIG. 1 is a schematic view of the overall structure of the corn harvester of the present invention;
FIG. 2 is a schematic view of the structure of the walking power transmission unit of the present invention;
FIG. 3 is a schematic view of the walking power transmission unit of the present invention from another perspective;
FIG. 4 is a schematic view of the construction of the working power transmission unit of the present invention;
FIG. 5 is a schematic view of the structure of the working power transmission unit of the present invention from another perspective;
FIG. 6 is a schematic elevational view of the working power transmission unit of the present invention;
FIG. 7 is a schematic view of the speed ratio steering apparatus of the present invention.
In the figure, 100: a corn harvester; 101: a header system; 102: returning to the field and crushing the device; 103: an elevator; 104: a peeler; 105: a fan device; 106: a seed recovery device; 1061: recovering the auger shaft; 107: a driving cab; 1: a chassis frame; 2: an engine; 3: a drive axle; 4: a steering axle; 5: a four-wheel drive gearbox; 6: a transmission mechanism; 60: a speed ratio steering device; 600: a universal drive shaft; 601: a first speed ratio conversion base; 602: a second speed ratio conversion base; 603: a first drive shaft; 604: a second drive shaft; 605: a four-wheel drive transition shaft; 606: a first gear; 607: a second gear; 608: a third gear; 609: a fourth gear; 7: a header and a returning transmission mechanism; 71: a transfer case set; 711: a transfer case; 72: returning the header to the field and changing the speed device; 721: a first power input shaft; 722: a second power take-off shaft; 73: a cutting table auger shaft; 74: tian Daozhou; 8: a transmission shaft of the elevator; 9: a main transmission two shafts; 10: a main transmission shaft; 11: a peeler transmission mechanism; 110: stripping the ears and inputting the ears into a horizontal shaft; 1101: an input gear; 111: a peeling roller shaft group; 1110: a peeling roller shaft; 1111: a gear; 1112: a drive gear; 112: a cob pulling group; 1121: ear picking shaft; 1122: ear-plucking driving chain wheel; 1123: ear-plucking main input chain wheel; 1124: ear-pulling fixed chain wheel; 1125: ear-plucking adjusting chain wheel; 1126: ear pulling chain; 12: a reel sprocket assembly; 13: snapping rolls; 14: a flange joint; 15: a mounting frame; 16: a peeler frame; 17: an engine bracket.
I: a first transmission assembly; II: a second transmission assembly; III: a third transmission assembly; IV: a fourth transmission assembly; v: a fifth transmission assembly; VI: a sixth pass through transmission assembly; VII: a seventh transmission assembly; VIII: an eighth transmission assembly; IX: a ninth transmission assembly; x: a tenth transmission assembly; XI: an eleventh transmission assembly; XII: a twelfth drive assembly.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1, the present invention provides a power transmission system of a corn harvester 100, which comprises a walking power transmission unit and a working power transmission unit which are arranged on a chassis frame 1;
as shown in fig. 2 and 3, the walking power transmission unit comprises an engine 2, a drive axle 3, a steering axle 4, a four-wheel drive gearbox 5 and a transmission mechanism 6; the driving axle 3 and the steering axle 4 are respectively arranged below the front and rear parts of the chassis frame 1, the engine 2 is arranged above the middle part of the chassis frame 1, a first output shaft of the engine 2 is connected with the driving axle 3 through a first transmission component I, a four-wheel drive gear box 5 is arranged at the bottom of the driving axle 3, a gear arranged in the four-wheel drive gear box 5 is meshed with a gear arranged in the driving axle 3, and the output end of the four-wheel drive gear box 5 is in transmission connection with the input end of the steering axle 4 through a transmission mechanism 6.
As shown in fig. 4 to 6, the working power transmission unit comprises a header and a returning transmission mechanism 7, an elevator transmission shaft 8, a main transmission two shaft 9, a main transmission one shaft 10 and a peeler transmission mechanism 11 which are distributed on the chassis frame 1 in the forward direction from the front part to the rear part of the chassis frame 1;
the header and returning transmission mechanism 7 comprises a transfer case group 71, a returning cutter shaft 74 distributed at the bottom of the front side of the transfer case group 71, a header returning speed changing device 72 distributed below one side of the transfer case group 71 and a header auger shaft 73 distributed behind the transfer case group 71; the header returning speed change device 72 comprises a first power input shaft 721 and a second power output shaft 722 which are distributed up and down and are driven by gears; the second power output shaft 722 is connected with an output shaft of the transfer case group 71 which is distributed on the same side of the second power output shaft through a second transmission component II, one end of the first power input shaft 721 is connected with one end of the returning cutter shaft 74 through a third transmission component III, and the other output shaft of the transfer case group 71 which is positioned on the opposite side of the cutting table returning speed changing device 72 is connected with one end of the cutting table auger shaft 73 through a fourth transmission component IV;
the main transmission two shafts 9 are connected with the other end of the first power input shaft 721 of the header returning speed change device 72 through a fifth transmission assembly V, the main transmission two shafts 9 are connected with the elevator transmission shaft 8 through a sixth transmission assembly VI, and the main transmission two shafts 9 and the main transmission one shaft 10 are connected through a seventh transmission assembly VII;
the main transmission first shaft 10 is connected with a second output shaft of the engine 2 through an eighth transmission assembly VIII;
the stripper transmission mechanism 11 comprises a stripping input cross shaft 110 connected with the main transmission one shaft 10 through a ninth transmission assembly IX, a stripping roll shaft group 111 which is positioned behind the stripping input cross shaft 110 and is orthogonally distributed with the stripping input cross shaft 110, and a stripping shaft group 112 which is distributed above the stripping roll shaft group 111 and is parallel to the stripping input cross shaft 11; gears 1111 are arranged on the input ends of the plurality of peeling roller shafts 1110 in the peeling roller shaft group 111, which are close to one side of the ear peeling input transverse shaft 110, and two adjacent gears 1111 are meshed with each other; a driving gear 1112 is installed at the end of the input end of at least one peeling roller shaft 1110, and an input gear 1101 meshed with the driving gear 1112 is installed on the ear peeling input cross shaft 110; one end of two adjacent ear-picking shafts 1121 in the ear-picking shaft group 112 is connected through a tenth transmission component X, the other end of any ear-picking shaft 1121 in the ear-picking shaft group 112 is connected with a main transmission one shaft 10 through an eleventh transmission component XI, so that a plurality of ear-picking shafts 1121 in the ear-picking shaft group 112 synchronously rotate, and the rotation directions of the ear-picking shafts 1121 in the ear-picking shaft group 112 and the main transmission one shaft 10 are opposite.
In the using process, when the corn harvester 100 works, the engine 2 is started, a first output shaft of the engine 2 provides power for the driving axle 3 through the first transmission component I, the driving axle 3 drives the whole corn harvester 100 to walk, and the power of the driving axle 3 is transmitted to the steering axle 4 through the four-wheel drive gear box 5 and the transmission mechanism 6, so that steering movement of the corn harvester 100 is realized;
meanwhile, the second output shaft of the engine 2 drives the main transmission first shaft 10 to rotate, the main transmission first shaft 10 drives the main transmission second shaft 9 to rotate through a seventh transmission component VII, the main transmission second shaft 9 drives the first power input shaft 721 to rotate through a fifth transmission component V, power is provided for the header and the returning transmission mechanism 7, the first power input shaft 721 drives the second power output shaft 722 to rotate through a speed change gear set, the second power output shaft 722 drives the output shaft of the transfer case group 71 to rotate through a second transmission component II, so that a plurality of output shafts in the transfer case group 71 are driven to link, the output shaft on the transfer case group 71 drives the reel sprocket assembly 12 and the snapping roll 13 connected with the output shaft to rotate, and the other output shaft of the transfer case group 71 positioned at the opposite side of the header returning transmission device 72 drives the header auger shaft 73 to rotate through a fourth transmission component IV, so that the operation of the header system 101 on the corn harvester 100 is realized;
the first power input shaft 721 drives the returning cutter shaft 74 to rotate through the third transmission assembly III, so that the returning crushing device 102 on the corn harvester 100 can work;
the main transmission two shafts 9 drive the transmission shafts 8 of the lifting conveyer to rotate through the sixth transmission assembly VI, so that the conveying chain on the lifting conveyer 103 (which can adopt a chain palladium conveyer) is driven to rotate, and the corn ears are transported;
the main transmission one shaft 10 drives the ear stripping input cross shaft 110 to rotate through a ninth transmission assembly IX, so as to provide power for the stripper 104 of the corn harvester 100; the ear stripping input cross shaft 110 rotates, the input gear 1101 on the ear stripping input cross shaft 110 drives the stripping roll shafts 1110 provided with the driving gears 1112 to rotate, and as the two gears 1111 on the two adjacent stripping roll shafts 1110 are meshed, one stripping roll shaft 1110 rotates to drive the stripping roll shaft group 111 to rotate, and the two adjacent stripping roll shafts 1110 move in opposite directions in a circular manner; meanwhile, the rotation of the ear stripping input cross shaft 110 can drive a plurality of ear stripping shafts 1121 in the ear stripping shaft group 112 to synchronously and reversely rotate; thereby effecting operation of peeler 104 on corn harvester 100.
Further, a fan device 105 is arranged on the outer side of the elevator 103 of the corn harvester 100, an air outlet of the fan device 105 is positioned at the outlet of the elevator 103 and is used for blowing straws and weeds at the outlet of the elevator 103 out of the corn harvester 100, and a power shaft (not shown in the figure) of the fan device 105 is connected with the main transmission shaft 10 through a twelfth transmission assembly XII.
Further, the first transmission assembly I, the eighth transmission assembly VIII and the twelfth transmission assembly XII are belt transmission assemblies; the second transmission assembly II, the third transmission assembly III, the fourth transmission assembly IV, the fifth transmission assembly V, the sixth transmission assembly VI, the seventh transmission assembly VII, the ninth transmission assembly IX, the tenth transmission assembly X and the eleventh transmission assembly XI are all chain transmission assemblies.
Further, a grain recovery device 106 is disposed below the peeler 104 of the corn harvester 100, and the grain recovery device 106 includes a recovery auger shaft 1061 disposed below the peeler 104, where the recovery auger shaft 1061 and any two adjacent cob pulling shafts 1121 in the cob pulling shaft group 112 share a transmission chain, so that the recovery auger shaft 1061 rotates synchronously with the cob pulling shaft group 112.
Preferably, a mechanical carrying rod is arranged on the driving axle 3 and is used for controlling the separation or engagement of a built-in gear of the four-wheel drive gear box 5 and a built-in gear of the driving axle 3, so that the two-wheel drive/four-wheel drive switching function of the whole vehicle running is realized; preferably, a control handle is arranged in the cab 107 of the corn harvester and connected with a mechanical carrying rod through a connecting rod or a flexible shaft stay wire, so that the separation-engagement switching of the transmission between the drive axle 3 and the four-wheel drive gearbox 5 can be conveniently controlled.
Further, when the output and input shaft rotation directions of the selected drive axle 3 and the steering axle 4 are matched with the transmission ratio, the transmission mechanism 6 is a plurality of groups of transmission shafts which are connected between the output end of the four-wheel drive gearbox 5 and the input end of the steering axle 4 and are matched with each other in a transmission manner;
as shown in fig. 7, when the output and input shaft rotation directions of the selected transaxle and steering axle are not matched with the transmission ratio, the transmission mechanism 6 is a speed ratio steering device 60 provided below the middle part of the chassis frame 1; the speed ratio steering device 60 comprises a first speed ratio conversion seat 601, a second speed ratio conversion seat 602, a first transmission shaft 603, a second transmission shaft 604, a four-wheel drive transition shaft 605, a first gear 606, a second gear 607, a third gear 608 and a fourth gear 609, wherein the first speed ratio conversion seat 601 and the second speed ratio conversion seat 602 are arranged below the middle part of the chassis seat 1 at a forward interval, the first transmission shaft 603 is rotationally connected to the first speed ratio conversion seat 601, the second transmission shaft 604 is positioned at the opposite side of the first transmission shaft 603 and rotationally connected to the second speed ratio conversion seat 602, the first gear 606 is positioned at the inner side of the first speed ratio conversion seat 601 and sleeved on the first transmission shaft 603, the fourth gear 609 is positioned at the inner side of the second speed ratio conversion seat 602 and sleeved on the second transmission shaft 604, the four-wheel drive transition shaft 605 is rotationally connected between the first speed ratio conversion seat 601 and the second speed ratio conversion seat 602, the second gear 608 and the third gear 608 are sleeved on the four-wheel drive transition shaft 605 respectively, the first gear 606 and the second gear 607 are meshed, and the fourth gear 609 are meshed; the output end of the four-wheel drive gearbox 5 is connected with the output end of the first transmission shaft 603 through a universal transmission shaft 600, and the output end of the second transmission shaft 604 is connected with the input end of the steering axle 4 through the universal transmission shaft 600; the speed ratio steering device 60 is used for matching and matching the rotation directions of the output shaft and the input shaft of the driving axle 3 and the steering axle 4 with the transmission ratio.
Further, in order to facilitate the connection between the universal driving shaft 600 and the first driving shaft 603 and the second driving shaft 604, flange plates 14 are installed at the output end of the first driving shaft 603 and the output end of the second driving shaft 604.
Further, the first transmission shaft 603 and the second transmission shaft 604 may be spline shafts, and the first gear 606, the second gear 607, the third gear 608 and the fourth gear 609 may each be bevel gears.
Further, the drive gear 1112 and the input gear 1101 are bevel gears.
Further, the main transmission first shaft 10 is supported and arranged on the chassis frame 1 through a mounting frame 15, a riding wheel (not shown in the figure) for adjusting tension or looseness of a transmission belt in an eighth transmission assembly VIII between the main transmission first shaft 10 and the engine 2 is arranged on the mounting frame 15, and a working clutch operating handle (not shown in the figure) connected with the riding wheel through a mechanical connecting rod is arranged in a driving cab 107 of the corn harvester 100; the working clutch operation handle controls the lifting of the riding wheel, when the riding wheel ascends to the upper limit, the transmission belt in the eighth transmission assembly VIII is tensioned, and the power transmission between the engine 2 and the main transmission shaft 10 is realized; when the riding wheel descends to the lower limit, the transmission belt in the eighth transmission assembly VIII is in a loose state, and the power transmission between the engine 2 and the main transmission shaft 10 is stopped, so that the working power transmission unit stops working.
Further, the peeler transmission mechanism 11 is supported and arranged on the chassis frame 1 through the peeler frame 16; the eleventh transmission assembly XI comprises a ear-picking driving sprocket 1122 fixed on the other end of any ear-picking shaft 1121 in the ear-picking shaft group 112, an ear-picking main input sprocket 1123 fixed on the main transmission shaft 10, and ear-picking fixed sprockets 1124 and ear-picking adjusting sprockets 1125 mounted on the stripper frame 16 and arranged on the same side as the ear-picking driving sprocket 1122, ear-picking chains 1126 are matched on the ear-picking driving sprocket 1122, ear-picking main input sprocket 1123, ear-picking fixed sprockets 1124 and ear-picking adjusting sprockets 1125, and the ear-picking driving sprocket 1122 is positioned outside of the ear-picking chains 1126 and meshed therewith; in use, the ear stripping input cross shaft 110 rotates to drive the ear stripping main input chain wheel 1123 to rotate, and the ear stripping chain 1126 drives the ear stripping shaft 1121 provided with the ear stripping driving chain wheel 1122 to rotate, so that the ear stripping shaft group 112 integrally rotates synchronously.
Further, the ear-pulling adjusting sprocket 1125 is fixedly arranged on the stripper frame 16 through a connecting shaft (not shown in the figure), a long hole (such as a waist-shaped hole) is formed on the stripper frame 16, one end of the connecting shaft passes through the long hole and is fixed on the stripper frame 16 through a fastener, and the ear-pulling adjusting sprocket 1125 is rotatably arranged at the other end of the connecting shaft; the position of the ear-poking adjusting chain wheel 1125 is adjusted by adjusting the fixed position of the connecting shaft on the long hole, so that the tension of the ear-poking chain 1126 is adjusted.
Further, a tension wheel device for adjusting the tension of a transmission chain on a ninth transmission assembly IX between the main transmission axle 10 and the ear stripping input transverse axle 110 is arranged on the stripper frame 16.
Further, a tension wheel device for adjusting the tightness of the transmission chain shared between the recovery auger shaft 1061 and any two adjacent cob pulling shafts 1121 in the cob pulling shaft group 112 is mounted on the stripper frame 16.
Further, the fan device 105 is mounted on the outside of the elevator 103 by a fan frame (not shown in the drawing), on which a tensioner device for adjusting the tightness of the belt of the twelfth transmission assembly XII is mounted.
Further, the engine 2 is mounted on the chassis frame 1 through an engine bracket 17, and a tensioner device for adjusting the belt tightness on the first transmission assembly i between the first output shaft of the engine 2 and the transaxle 3 is mounted on the engine bracket 17.
Further, the transfer case set 71 includes two transfer cases 711 mounted coaxially, each transfer case 711 being of a four-sided power take-off form, each transfer case 711 including two first output shafts extending from a front side thereof, two second output shafts extending from an upper side thereof, and a third output shaft extending from left and right sides thereof.
The present invention has been described with reference to the above embodiments, and the structure, arrangement and connection of the components may be varied. On the basis of the technical scheme, the improvement or equivalent transformation of the individual components according to the principles of the invention should not be excluded from the protection scope of the invention.
Claims (8)
1. A corn harvester power transmission system, characterized in that: comprises a walking power transmission unit and a working power transmission unit which are arranged on a chassis frame;
the walking power transmission unit comprises an engine, a drive axle, a steering axle, a four-wheel drive gear box and a transmission mechanism; the first output shaft of the engine is connected with the drive axle through a first transmission assembly, the four-wheel drive gear box is arranged at the bottom of the drive axle, a gear arranged in the four-wheel drive gear box is meshed with a gear arranged in the drive axle, and the output end of the four-wheel drive gear box is in transmission connection with the input end of the steering axle through a transmission mechanism;
the working power transmission unit comprises a header and a returning transmission mechanism, an elevator transmission shaft, a main transmission two shaft, a main transmission one shaft and a peeler transmission mechanism which are distributed on the chassis frame in the forward direction from the front part to the rear part of the chassis frame; the header and returning transmission mechanism comprises a transfer case group, a returning cutter shaft distributed at the bottom of the front side of the transfer case group, a header returning speed change device distributed below one side of the transfer case group and a header auger shaft distributed behind the transfer case group; the header returning speed change device comprises a first power input shaft and a second power output shaft which are distributed up and down and are driven by gears; the second power output shaft is connected with an output shaft of the transfer case group which is distributed on the same side through a second transmission assembly, one end of the first power input shaft is connected with one end of the returning cutter shaft through a third transmission assembly, and the other output shaft of the transfer case group which is positioned on the opposite side of the cutting table returning speed change device is connected with one end of the cutting table auger shaft through a fourth transmission assembly;
the main transmission two shafts are connected with the other end of the first power input shaft through a fifth transmission assembly, the main transmission two shafts are connected with the transmission shaft of the elevator through a sixth transmission assembly, and the main transmission two shafts are connected with the main transmission one shaft through a seventh transmission assembly;
the main transmission first shaft is connected with a second output shaft of the engine through an eighth transmission assembly;
the peeling machine transmission mechanism comprises a peeling input cross shaft connected with a main transmission one shaft through a ninth transmission component, a peeling roll shaft group which is positioned behind the peeling input cross shaft and is orthogonally distributed with the peeling input cross shaft, and a ear poking shaft group which is distributed above the peeling roll shaft group and is parallel to the peeling input cross shaft; the ear stripping input cross shaft is in transmission connection with the stripping roll shaft group, so that two adjacent stripping roll shafts in the stripping roll shaft group do relative reverse circular motion; one end of any two adjacent ear-picking shafts in the ear-picking shaft group is connected with one end of any two adjacent ear-picking shafts in the ear-picking shaft group through a tenth transmission assembly, and any ear-picking shaft in the ear-picking shaft group is connected with one main transmission shaft through an eleventh transmission assembly;
the transmission mechanism is a plurality of groups of transmission shafts which are connected between the output end of the four-wheel drive gear box and the input end of the steering axle and are matched in a transmission manner;
or the transmission mechanism is a speed ratio steering device arranged below the middle part of the chassis frame; the speed ratio steering device comprises a first speed ratio conversion seat body, a second speed ratio conversion seat body, a first transmission shaft, a second transmission shaft, a four-wheel drive transition shaft, a first gear, a second gear, a third gear and a fourth gear; the first speed ratio conversion seat body and the second speed ratio conversion seat body are arranged below the middle part of the chassis frame at a forward interval, the first transmission shaft is rotationally connected to the first speed ratio conversion seat body, the second transmission shaft is positioned on the opposite side of the first transmission shaft and rotationally connected to the second speed ratio conversion seat body, the first gear is positioned on the inner side of the first speed ratio conversion seat body and sleeved on the first transmission shaft, the fourth gear is positioned on the inner side of the second speed ratio conversion seat body and sleeved on the second transmission shaft, the four-wheel drive transition shaft is rotationally connected between the first speed ratio conversion seat body and the second speed ratio conversion seat body, the second gear and the third gear are respectively sleeved on the four-wheel drive transition shaft, the first gear and the second gear are meshed, and the third gear and the fourth gear are meshed; the output end of the four-wheel drive gear box is connected with the output end of the first transmission shaft through a universal transmission shaft, and the output end of the second transmission shaft is connected with the input end of the steering axle through a universal transmission shaft;
the transfer case group comprises two transfer cases which are coaxially installed, and each transfer case is in a four-side power output mode; each transfer case comprises two first output shafts extending out of the front side surfaces of the transfer case, two second output shafts extending out of the upper side surfaces of the transfer case, and third output shafts extending out of the left side surfaces and the right side surfaces of the transfer case.
2. The corn harvester driveline of claim 1, wherein: gears are arranged at the input ends of a plurality of stripping roll shafts in the stripping roll shaft group, which are close to one side of the stripping input cross shaft, and two adjacent gears are meshed with each other; and a driving gear is arranged at the end part of the input end of at least one peeling roller shaft, and an input gear meshed with the driving gear is arranged on the peeling input cross shaft.
3. A corn harvester power train as in claim 1 or 2 wherein: the outside of the elevator of the corn harvester is provided with a fan device, and a power shaft of the fan device is connected with a main transmission shaft through a twelfth transmission assembly.
4. A corn harvester power train as in claim 3 wherein: the first transmission assembly, the eighth transmission assembly and the twelfth transmission assembly are all belt transmission assemblies; the second transmission assembly, the third transmission assembly, the fourth transmission assembly, the fifth transmission assembly, the sixth transmission assembly, the seventh transmission assembly, the ninth transmission assembly, the tenth transmission assembly and the eleventh transmission assembly are all chain transmission assemblies.
5. The corn harvester driveline of claim 4, wherein: a recovery auger shaft is arranged below the peeler transmission mechanism, and any two adjacent cob pulling shafts in the recovery auger shaft and cob pulling shaft group share a transmission chain.
6. The corn harvester driveline of claim 1, wherein: the mechanical carrying rod is arranged on the drive axle and is used for controlling the separation or engagement of the built-in gear of the four-wheel drive gear box and the built-in gear of the drive axle; a control handle in transmission connection with the mechanical carrying rod is arranged in the driving control chamber; the main transmission shaft is supported and arranged on the chassis frame through a mounting frame, a riding wheel used for adjusting tensioning or loosening of a transmission belt in an eighth transmission assembly between the main transmission shaft and the engine is arranged on the mounting frame, and a working clutch operation handle connected with the riding wheel through a mechanical connecting rod is arranged in a driving control room of the corn harvester.
7. The corn harvester power train of claim 5, wherein: the peeler transmission mechanism is supported and arranged on the chassis frame through a peeler frame; the eleventh transmission assembly comprises a ear-poking driving sprocket fixed at the other end of any ear-poking shaft in the ear-poking shaft group, an ear-poking main input sprocket fixed on one main transmission shaft, an ear-poking fixed sprocket and an ear-poking adjusting sprocket which are arranged on the frame of the peeler and are distributed on the same side with the ear-poking driving sprocket; the ear-picking driving chain wheel, the ear-picking main input chain wheel, the ear-picking fixed chain wheel and the ear-picking adjusting chain wheel are matched with an ear-picking chain, and the ear-picking driving chain wheel is positioned at the outer side of the ear-picking chain and meshed with the ear-picking chain; the ear-pulling adjusting chain wheel is fixedly arranged on the stripper frame through a connecting shaft, a long hole is formed in the stripper frame, one end of the connecting shaft penetrates through the long hole and is fixed on the stripper frame through a fastener, and the ear-pulling adjusting chain wheel is rotatably arranged at the other end of the connecting shaft; a tension wheel device for adjusting the tightness of a transmission chain on a ninth transmission assembly between the main transmission shaft and the ear stripping input cross shaft is arranged on the stripper frame; and a tension wheel device for adjusting the tightness of a transmission chain shared between any two adjacent ear-pulling shafts in the recovery auger shaft and the ear-pulling shaft group is arranged on the frame of the stripper.
8. The corn harvester driveline of claim 4, wherein: the fan device is arranged on the outer side of the elevator through a fan frame, and a tension wheel device for adjusting the tightness of a transmission belt of the twelfth transmission assembly is arranged on the fan frame; the engine is mounted on the chassis frame through an engine bracket, and a tension wheel device for adjusting the tightness of a transmission belt on a first transmission assembly between a first output shaft of the engine and a drive axle is mounted on the engine bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811619356.8A CN109496564B (en) | 2018-12-28 | 2018-12-28 | Corn harvester power transmission system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811619356.8A CN109496564B (en) | 2018-12-28 | 2018-12-28 | Corn harvester power transmission system |
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| CN109496564A CN109496564A (en) | 2019-03-22 |
| CN109496564B true CN109496564B (en) | 2023-08-25 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112314166A (en) * | 2020-12-08 | 2021-02-05 | 山东沭丰农业装备有限公司 | Corn peeling device and corn harvester |
| CN113439537B (en) * | 2021-08-02 | 2023-08-08 | 河北英虎农业机械股份有限公司 | Corn harvester capable of harvesting stems and ears |
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| CN109496564A (en) | 2019-03-22 |
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