Corn ear picking mechanism

Abstract

The utility model discloses a corn ear picking mechanism which comprises a frame body, an ear picking device and a straw smashing device are arranged on the frame body, the ear picking device comprises an ear picking roller, two ear pulling chains and an ear picking transmission box used for driving the ear picking roller and the ear pulling chains, and the two ear pulling chains are supported on the frame body through a driving chain wheel and a driven chain wheel respectively. The driving chain wheel is connected with the ear picking transmission case, the two ear picking rollers are connected with the ear picking transmission case so as to drive the two ear picking rollers to rotate relatively, and the chopping knife is connected with the crushing transmission case through a knife shaft. The power input shaft can drive the smashing transmission box and the ear picking transmission box at the same time, the smashing transmission box and the ear picking transmission box are of a closed structure, integrity is high, installation and maintenance are convenient, working performance is stable and reliable, and the service life is long. And the corn straw can be cut into sections through the chopping knife, so that the straw can be crushed more completely.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery field especially relates to a corn ear picking mechanism. BACKGROUND

[0002] The corn ear picking device is the core component of the corn harvester, and the maturity of its technology directly affects the operation quality and efficiency of the corn harvester, including the integrity of ear picking, the breakage rate of kernels, the loss rate and the like. The existing corn ear picking mechanism comprises a rack, an ear picking device and a stalk poking device, wherein the stalk poking device comprises a stalk poking transmission box and a stalk poking chain, the stalk poking chain is engaged on the sprocket of the output shaft of the stalk poking transmission box, the stalk poking transmission box provides driving power, the stalk poking chain is fed into the stalk through the stalk poking claws thereon, and the ear picking roller completes the picking of the ear. The stalk poking transmission box is arranged below the rack, occupies the space below the rack, and in addition, the ear picking device has a complex transmission mechanism, including a plurality of transmission gears, due to the limited installation space, the plurality of transmission gears can only be exposed, the structure is loose and disordered, and the installation and maintenance are inconvenient.

[0003] Secondly, after the corn ear is separated from the stalk, the corn ear is sent to the transverse conveyor of the corn harvester through the stalk poking chain, the corn stalk after the corn ear picking still needs to be treated twice, some of the stalks are cleaned out of the original land for other purposes, and some of the stalks are crushed by the stalk crushing and returning to field machine and then returned to the field as biological fertilizer for the preparation of the next year's crop planting. SUMMARY

[0004] The utility model provides a kind of corn ear picking mechanism, the corn ear picking mechanism compact structure, strong integrity, installation, maintenance is convenient, and work performance is reliable, long service life, corn ear is picked from corn stalk after, simultaneously using stalk crushing device can be broken back to field, play one machine multiple use function.Specific technical scheme is as follows:

[0005] A kind of corn ear picking mechanism, including frame body, it is characterized in that, frame body is provided with ear picking device and stalk crushing device, ear picking device includes ear picking roller, stalk poking chain and be used for driving ear picking roller and stalk poking chain's ear picking transmission box;Stalk crushing device includes, mincing knife and be used for driving mincing knife's crushing transmission box, crushing transmission box is connected with ear picking transmission box through coupling, and is connected together by power input shaft;The number of stalk poking chain is two, is supported on frame body by driving sprocket and driven sprocket respectively, driving sprocket is connected with ear picking transmission box, can drive stalk poking chain movement by ear picking transmission box, ear picking transmission box is fixed at the rear end of frame body, two ear picking rollers are connected with ear picking transmission box, and two ear picking rollers are located below stalk poking chain, can drive two ear picking rollers relative rotation by ear picking transmission box;Mincing knife is located below two ear picking rollers, mincing knife is connected with crushing transmission box by knife shaft, can drive mincing knife rotation by crushing transmission box.

[0006] Further, the ear picking transmission box comprises an ear picking box body and a first gear transmission assembly arranged in the ear picking box body, the first gear transmission assembly comprises a driving wheel and a driven wheel, the driving wheel and the driven wheel are connected through a chain transmission, the driven wheel is arranged on an output shaft, and first bevel gears are arranged on both sides of the driven wheel, a driving shaft of an ear picking roller is provided with a second bevel gear at one end close to the ear picking transmission box, the second bevel gear is engaged with the first bevel gear, and the power input shaft drives the first bevel gear to rotate through the driving wheel and the driven wheel, so that the two ear picking rollers are driven to rotate relatively, corn straws are pulled downward, and corn ears are picked off.

[0007] Further, third bevel gears are arranged at both ends of the output shaft, the third bevel gears are engaged with fourth bevel gears, the fourth bevel gears are arranged on a driving shaft of the ear picking transmission box, one end of the driving shaft extends out of the ear picking transmission box and is connected with a driving sprocket, the third bevel gears drive the fourth bevel gears to rotate, so that the ear picking chain is driven to move, whole corns are transported to the ear picking rollers, and corn ears picked off by the ear picking rollers are sent to a transverse conveyor of the corn harvester.

[0008] Further, the ear picking roller comprises a roller body, the roller body is installed on the driving shaft through a spline sleeve, a helical rib is arranged at a front end of the roller body, and the outer surface of the roller body is provided with a plurality of ear picking ribs, the two ear picking rollers are driven to rotate relatively, and the ear picking ribs on the two ear picking rollers cooperate to pick off corn ears.

[0009] Further, the helical ribs of the two ear picking rollers are arranged in a staggered manner, so that the whole corns can be better transported to the space between the two ear picking rollers.

[0010] Further, the ear picking chain comprises a chain body, a plurality of ear picking claws are arranged on the chain body, the ear picking claws are used for transporting whole corns to the ear picking rollers and sending corn ears picked off by the ear picking rollers to the transverse conveyor of the corn harvester.

[0011] Further, the frame body is further provided with a tensioning device for tensioning the ear picking chain, the ear picking chain is installed on the driving sprocket and the driven sprocket and is tensioned by the tensioning device, the tensioning mechanism comprises a tensioning seat, one end of the tensioning seat is connected with a cylinder rod of a cylinder, and the other end of the tensioning seat is connected with the driven sprocket through a pin shaft.

[0012] Further, the crushing transmission box comprises a crushing box body and a second gear transmission assembly arranged in the crushing box body, the second gear transmission assembly comprises a fifth bevel gear and a transmission shaft, a sixth bevel gear engaged with the fifth bevel gear is arranged at one end of the transmission shaft, and a seventh bevel gear is arranged at the other end of the transmission shaft, the seventh bevel gear is engaged with an eighth bevel gear on a cutter shaft of a chopping knife, and the power input shaft drives the transmission shaft to rotate through the fifth bevel gear, so that the chopping knife is driven to rotate to realize the cutting of the corn straws.

[0013] Further, the chopping knife comprises a blade fixed on a cutter disc connected with the pulverizing transmission box, one end of a cutter shaft is fixed on the cutter disc, and the other end of the cutter shaft extends into the pulverizing box body and meshes with the seventh bevel gear through the eighth bevel gear.

[0014] Further, the number of the blades is two, the cutter disc is composed of an upper cutter disc and a lower cutter disc, pin holes are arranged on both sides of the upper cutter disc and the lower cutter disc, round holes corresponding to the pin holes are arranged on the blades, the blades are arranged between the upper cutter disc and the lower cutter disc and are fixed with the upper cutter disc and the lower cutter disc through positioning pins.

[0015] The pulverizing transmission box and the ear picking transmission box are connected through a shaft coupling and are connected in series through a power input shaft, so that the power input shaft can drive the pulverizing transmission box and the ear picking transmission box at the same time, the pulverizing transmission box and the ear picking transmission box are of a closed structure,

[0016] The whole is strong in integrity, convenient to install and maintain, stable and reliable in working performance and long in service life. The corn straw can be cut into sections by the chopping knife, so that the straw is more completely broken, which is beneficial to the rapid rotting and conversion into fertilizer after the straw is returned to the field. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a perspective view of the straw pulverizing device of the utility model; Figure 1 ;

[0018] Figure 2 is a perspective view of the straw pulverizing device of the utility model; Figure 2 ;

[0019] Figure 3 is a front view of the ear picking roller and the ear picking transmission box connected with each other;

[0020] Figure 4 is a side view of the ear picking roller and the ear picking transmission box connected with each other;

[0021] Figure 5 is a schematic view of the internal structure of the ear picking roller and the ear picking transmission box;

[0022] Figure 6 is a sectional view of the ear picking roller and the ear picking transmission box;

[0023] Figure 7 is a schematic view of the structure of the straw pulverizing device of the utility model;

[0024] Figure 8 is a schematic view of the internal structure of the straw pulverizing device of the utility model;

[0025] Figure 9 is a side view of the internal structure of the straw pulverizing device of the utility model;

[0026] Figure 10 is a structural schematic view of the frame body of the utility model;

[0027] Figure 11 is a structural schematic view of the tensioning device of the utility model;

[0028] Figure 12 is a structural schematic view of the ear-pulling chain of the utility model. DETAILED DESCRIPTION

[0029] In order to better understand the purpose, function and specific design scheme of the utility model, the corn ear-picking mechanism of the utility model is further described in detail below in combination with the drawings.

[0030] As shown in Figures 1-10 , the corn ear-picking mechanism of the utility model comprises a frame body 1, the frame body 1 is provided with an ear-picking device 2 and a straw crushing device 3, the ear-picking device 2 comprises an ear-picking roller 22, an ear-pulling chain 23 and an ear-picking transmission box 21 for driving the ear-picking roller 22 and the ear-pulling chain 23. The straw crushing device 3 comprises a chopping knife 32 and a crushing transmission box 31 for driving the chopping knife 32, the crushing transmission box 31 is connected with the ear-picking transmission box 21 through a shaft coupling 5 and is connected together through a power input shaft. The number of the ear-pulling chain 23 is two, which are supported on the frame body 1 through a driving sprocket 233 and a driven sprocket 234 respectively, the driving sprocket 233 is connected with the ear-picking transmission box 21, the ear-pulling chain 23 can be driven to move through the ear-picking transmission box 21, the ear-picking transmission box 21 is fixed at the rear end of the frame body 1, two ear-picking rollers 22 are connected with the ear-picking transmission box 21, and the two ear-picking rollers 22 are located below the ear-pulling chain 23, the two ear-picking rollers 22 can be driven to rotate relative to each other through the ear-picking transmission box 21. The chopping knife 32 is located below the two ear-picking rollers 22, the chopping knife 32 is connected with the crushing transmission box 31 through a knife shaft 33, and the chopping knife 32 can be driven to rotate through the crushing transmission box 31.

[0031] Specifically, as shown in Figures 3-6 , the ear-picking transmission box 21 comprises an ear-picking box body and a first gear transmission assembly arranged in the ear-picking box body, the first gear transmission assembly comprises a driving wheel 211 and a driven wheel 212, the driving wheel 211 and the driven wheel 212 are drivingly connected through a chain 213, the driven wheel 212 is arranged on an output shaft 217, and first bevel gears 214 are arranged on both sides of the driven wheel 212, a driving shaft 222 of the ear-picking roller 22 is provided with a second bevel gear 2221 at one end close to the ear-picking transmission box 21, the second bevel gear 2221 is engaged with the first bevel gear 214, and the power input shaft drives the first bevel gear 214 to rotate through the driving wheel 211 and the driven wheel 212, so as to drive the two ear-picking rollers 22 to rotate relative to each other, pull the corn straw downward, and pick the corn ear.

[0032] As shown in Figure 2 ,Figure 3 、 Figure 5 and Figure 6 As shown in Figs. 8, 9 and 10, the two ends of the output shaft 217 are provided with third bevel gears 215, which are engaged with fourth bevel gears 216 provided on the driving shaft 218 of the ear picking transmission case. The driving shaft 218 extends out of the ear picking transmission case and is connected with a driving sprocket 233. The third bevel gears 215 drive the fourth bevel gears 216 to rotate, thereby driving the ear picking chain 23 to move, so as to transport the whole plant corn to the ear picking roller 22 and send the corn ears picked by the ear picking roller 22 to the transverse conveyor of the corn harvester.

[0033] The ear picking roller 22 comprises a roller body 221, which is installed on a driving shaft 222 through a spline sleeve 223. The front end of the roller body 221 is provided with a helical rib 2211. The helical ribs 2211 of the two ear picking rollers 22 are arranged in an interlaced manner, so that the whole plant corn can be better transported to the space between the two ear picking rollers 22. The outer surface of the roller body 221 is provided with a plurality of ear picking ribs 2212. The two ear picking rollers 22 rotate relative to each other, so that the ear picking ribs 2212 on the two ear picking rollers 22 cooperate to pick the corn ears.

[0034] As shown in Figs. 11, 12 and 13, the ear picking chain 23 comprises a chain body 231, which is provided with a plurality of ear picking claws 232 for transporting the whole plant corn to the ear picking roller 22 and sending the corn ears picked by the ear picking roller 22 to the transverse conveyor of the corn harvester. Figure 2 Figure 12 As shown in Figs. 14, 15 and 16, the frame 1 is further provided with a tensioning device 4 for tensioning the ear picking chain 23. The ear picking chain is installed on the driving sprocket 233 and the driven sprocket 234 and is tensioned by the tensioning device 4. The tensioning device 4 comprises a tensioning seat 43, one end of which is connected with the cylinder rod 42 of a cylinder 41, and the other end of which is connected with the driven sprocket 234 through a pin shaft.

[0035] As shown in Figs. 17, 18 and 19, the crushing transmission case 31 comprises a crushing case body and a second gear transmission assembly provided in the crushing case body. The second gear transmission assembly comprises a fifth bevel gear 311 and a transmission shaft 312. One end of the transmission shaft 312 is provided with a sixth bevel gear 313 engaged with the fifth bevel gear 311. The other end of the transmission shaft 312 is provided with a seventh bevel gear 314 engaged with an eighth bevel gear 341 on the cutter shaft 34. The power input shaft drives the transmission shaft 312 to rotate through the fifth bevel gear 311, thereby driving the cutter 32 to rotate to cut the corn stalks. Figure 2 Figure 10 Figure 11

[0036] As shown in Figs. 20, 21 and 22, the frame 1 is further provided with a tensioning device 4 for tensioning the ear picking chain 23. The ear picking chain is installed on the driving sprocket 233 and the driven sprocket 234 and is tensioned by the tensioning device 4. The tensioning device 4 comprises a tensioning seat 43, one end of which is connected with the cylinder rod 42 of a cylinder 41, and the other end of which is connected with the driven sprocket 234 through a pin shaft. Figures 7-9

[0037] ​​​​​The chopping knife 32 comprises a blade 322 fixed on a cutter disc 321 connected with the pulverizing transmission box, and the cutter shaft 34 is fixed at one end on the cutter disc 321 and extends into the pulverizing box body and meshes with the seventh bevel gear 314 through the eighth bevel gear 341.

[0038] The number of the blade 322 is two, the cutter disc 321 is composed of an upper cutter disc 3211 and a lower cutter disc 3212, pin holes are arranged on both sides of the upper cutter disc 3211 and the lower cutter disc 3212, and round holes corresponding to the pin holes are arranged on the blade 322, the blade 322 is arranged between the upper cutter disc 3211 and the lower cutter disc 3212 and is fixed with the upper cutter disc 3211 and the lower cutter disc 3212 through positioning pins.

[0039] Working principle of the corn ear picking mechanism:

[0040] The pulverizing transmission box 31 is connected with the ear picking transmission box 21 through the shaft coupling 5, the power input shaft passes through the driving wheel 211 and the fifth bevel gear 311 and is fixedly connected with the driving wheel 211 and the fifth bevel gear 311, the driving wheel 211 drives the first bevel gear 214 to rotate through the driven wheel 212, and then drives the driving shaft 222 to rotate, so that the ear picking roller body 221 connected with the driving shaft 222 rotates. The output shaft 217 transmits power to the driving shaft 218 through the third bevel gear 215 and the fourth bevel gear 216 meshing with the third bevel gear 215, the ear picking chain 23 is driven by the driving shaft 218 to move, and then the whole plant corn is transported to the ear picking roller, the two ear picking rollers rotate oppositely, the whole plant corn is pulled downward, when the corn ear is pulled between the two ear picking rollers, the corn ear is picked by the ear picking rib, so that the corn ear is separated from the corn straw, and the picked corn ear is sent to the transverse conveyor of the corn harvester by the ear picking pawl of the ear picking chain. The fifth bevel gear 311 drives the blade 322 of the chopping knife 32 to rotate through the transmission shaft 312, and the corn straw pulled down by the ear picking roller 22 is chopped.

[0041] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: the technical solutions recorded in the foregoing examples can still be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A corn ear picking mechanism comprising a frame, characterized by, The frame body is provided with a ear picking device and a straw crushing device, the ear picking device comprises ear picking rollers, ear picking chains and an ear picking transmission box for driving the ear picking rollers and the ear picking chains, the straw crushing device comprises a chopping knife and a crushing transmission box for driving the chopping knife, the crushing transmission box is connected with the ear picking transmission box through a coupling and is connected together through a power input shaft, the ear picking chains are two, are supported on the frame body through driving sprockets and driven sprockets, the driving sprocket is connected with the ear picking transmission box, the ear picking transmission box can drive the ear picking chains to move, the ear picking transmission box is fixed at the rear end of the frame body, the two ear picking rollers are connected with the ear picking transmission box and are located below the ear picking chains, the ear picking transmission box can drive the two ear picking rollers to rotate oppositely, the chopping knife is located below the two ear picking rollers, the chopping knife is connected with the crushing transmission box through a knife shaft, and the crushing transmission box can drive the chopping knife to rotate.

2. The corn snapping mechanism of claim 1, wherein, The ear picking transmission box comprises an ear picking box body and a first gear transmission assembly arranged in the ear picking box body, the first gear transmission assembly comprises a driving sprocket and a driven sprocket, the driving sprocket and the driven sprocket are connected through a chain transmission, the driven sprocket is arranged on an output shaft, first bevel gears are arranged on the two sides of the driven sprocket, a second bevel gear is arranged on the end of the driving shaft of the ear picking roller close to the ear picking transmission box, the second bevel gear is engaged with the first bevel gear, the power input shaft drives the first bevel gear to rotate through the driving sprocket and the driven sprocket, thereby driving the two ear picking rollers to rotate oppositely, pulling the corn straw downward and picking the corn ear.

3. The corn snapping mechanism of claim 2, wherein, Third bevel gears are arranged on the two ends of the output shaft, the third bevel gears are engaged with fourth bevel gears, the fourth bevel gears are arranged on a driving shaft of the ear picking transmission box, one end of the driving shaft extends out of the ear picking transmission box and is connected with the driving sprocket, the third bevel gears drive the fourth bevel gears to rotate, thereby driving the ear picking chains to move, so as to realize the conveying of whole corn plants to the ear picking rollers and the conveying of the corn ear picked by the ear picking rollers to the transverse conveyor of the corn harvester.

4. The corn snapping mechanism according to claim 2 or 3, wherein, The ear picking roller comprises a roller body, the roller body is installed on the driving shaft through a spline sleeve, a helical rib is arranged at the front end of the roller body, and a plurality of ear picking ribs are arranged on the outer surface of the roller body, the two ear picking rollers rotate oppositely, so that the ear picking ribs on the two ear picking rollers cooperate to pick the corn ear.

5. The corn snapping mechanism of claim 4, wherein, The helical ribs of the two ear picking rollers are arranged in a staggered manner, so that the whole corn plants can be better conveyed between the two ear picking rollers.

6. The corn snapping mechanism of claim 1 or 3, wherein, The ear picking chain comprises a chain body, a plurality of ear picking claws are arranged on the chain body, the ear picking claws are used for conveying the whole corn plants to the ear picking rollers and conveying the corn ear picked by the ear picking rollers to the transverse conveyor of the corn harvester.

7. The corn snapping mechanism of claim 6, wherein, A tensioning device for tensioning the ear picking chains is further arranged on the frame body, the ear picking chains are installed on the driving sprocket and the driven sprocket and are tensioned by the tensioning device, the tensioning device comprises a tensioning seat, one end of the tensioning seat is connected with a cylinder rod of a cylinder, and the other end of the tensioning seat is connected with the driven sprocket through a pin shaft.

8. The corn snapping mechanism of claim 1, wherein, The pulverizing transmission box comprises a pulverizing box body and a second gear transmission assembly arranged in the pulverizing box body, the second gear transmission assembly comprises a fifth bevel gear and a transmission shaft, one end of the transmission shaft is provided with a sixth bevel gear engaged with the fifth bevel gear, and the other end of the transmission shaft is provided with a seventh bevel gear engaged with an eighth bevel gear on a chopping knife shaft, and the power input shaft drives the transmission shaft to rotate through the fifth bevel gear, so as to drive the chopping knife to rotate to realize the cutting of corn stalks.

9. The corn snapping mechanism of claim 8, wherein, The chopping knife comprises a blade fixed on a cutter disc connected with the pulverizing transmission box, one end of a cutter shaft is fixed on the cutter disc, and the other end of the cutter shaft extends into the pulverizing box body and is engaged with the seventh bevel gear through the eighth bevel gear.

10. The corn snapping mechanism of claim 9, wherein, The number of the blades is two, the cutter disc is composed of an upper cutter disc and a lower cutter disc, pin holes are arranged on both sides of the upper cutter disc and the lower cutter disc, round holes corresponding to the pin holes are arranged on the blades, the blades are arranged between the upper cutter disc and the lower cutter disc and are fixed with the upper cutter disc and the lower cutter disc through positioning pins.

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