A device for picking ears and a harvester

Abstract

The present application provides a kind of ear picking device and harvester.An ear picking device, comprising: a pair of ear picking rollers, including high ear picking roller and low ear picking roller, the pair of ear picking rollers are left and right adjacent and set up high and low up and down;First ear picking plate is set above the low ear picking roller, and the first ear picking plate has gap with the low ear picking roller;Second ear picking plate is set above the high ear picking roller;The second ear picking plate has gap with the high ear picking roller.By high ear picking roller and low ear picking roller pull down stalk cooperate the gap of first ear picking plate and second ear picking plate to realize ear picking function, reduce the contact area and contact time of ear and high ear picking roller and low ear picking roller, improve the integrity of ear, reduce the problem of ear grain drop.Improve the problem of lower moisture content corn ear grain drop in harvesting;Improve the pulling effect of ear picking roller, reduce the problem of jam, improve the harvesting effect and operation efficiency, improve user satisfaction, facilitate the promotion model.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of header, in particular to a picking device and a harvester. BACKGROUND

[0002] At present, according to different picking methods, corn harvesters are divided into roller type corn harvesters and plate type corn harvesters, wherein the roller type corn harvester has a technical route of a spiral rib picking roller + rubber baffle. The front part of the picking roller is provided with a spiral rib, which can realize the upward conveying of the stalk and the downward pulling function of the stalk. The rear end of the strong pulling rib can forcibly pull down the stalk that is not completely pulled down. The rubber baffle can reduce the contact between the ear and the picking roller and reduce the impact of the grains. When harvesting corn ears with low water content, the picking roller is prone to serious problems such as grain dropping caused by the impact of the picking roller and the ear. At the same time, the picking roller with a spiral rib has poor stalk pulling effect and is prone to blockage.

[0003] At present, the picking device of the cutting table of the roller type corn harvester in the market adopts the picking roller with spiral ribs at the front end and strong pulling ribs at the rear end to realize the picking function in cooperation with the rubber baffle. When harvesting ears with low water content, the picked ears are in contact with the moving picking roller, causing the grains to drop from the ears, affecting the integrity of the corn ears and the yield of corn. At the same time, the picking roller with a spiral rib has poor stalk pulling effect and is prone to blockage, affecting the harvesting effect and work efficiency of the user. SUMMARY

[0004] The present application solves the technical problems of the prior art and provides a picking device and a harvester.

[0005] The technical scheme for solving the above technical problems is as follows: a picking device, comprising: a pair of picking rollers, including a high picking roller and a low picking roller, the pair of picking rollers are adjacent to each other and arranged in high and low positions; a first picking plate is arranged above the low picking roller, and a gap is formed between the first picking plate and the low picking roller; a second picking plate is arranged above the high picking roller; and a gap is formed between the second picking plate and the high picking roller.

[0006] The beneficial effects of the technical scheme of the present application are as follows: the picking function is realized by pulling the stalks downward by the high picking roller and the low picking roller in cooperation with the gaps of the first picking plate and the second picking plate, the contact area and contact time between the ear and the high picking roller and the low picking roller are reduced, the integrity of the ear is improved, and the problem of grain dropping from the ear is reduced. The problem of grain dropping from the ear when harvesting corn ears with low water content is improved; the stalk pulling effect of the picking roller is improved, the problem of blockage is reduced, the harvesting effect and work efficiency are improved, the user satisfaction is improved, and the model is convenient to popularize.

[0007] Further, the low ear picking roller comprises a first ear picking roller joint assembly, a first spiral rib, a second spiral rib, a third spiral rib, and a plurality of first strong pulling ribs, the first spiral rib, the second spiral rib, the third spiral rib, and the plurality of first strong pulling ribs are installed on the first ear picking roller joint assembly, and a plurality of first front ribs are arranged between the first spiral rib, the second spiral rib, and the third spiral rib, and the plurality of first front ribs are parallel to the axis of the first ear picking roller joint assembly.

[0008] The beneficial effect of the above further technical solution is that the first front rib is added between the first spiral rib, the second spiral rib, and the third spiral rib of the low ear picking roller, which further improves the stem pulling effect of the low ear picking roller. The first spiral rib, the three first front ribs arranged in the circumferential direction, the second spiral rib, and the four first front ribs arranged in the circumferential direction of the low ear picking roller cooperate with the six stem pulling plates in the front 1 / 2 of the high ear picking roller to pull the stem downward. During the rotation of the high ear picking roller and the low ear picking roller, the first front rib of the low ear picking roller cooperates with the stem pulling plate of the high ear picking roller to reduce the gap between the high ear picking roller and the low ear picking roller, increase the extrusion force and contact time of the high ear picking roller and the low ear picking roller on the stem, and improve the stem pulling effect of the high ear picking roller and the low ear picking roller. At the same time, the first spiral rib, the second spiral rib, and the third spiral rib of the low ear picking roller can realize the pushing ability of the cluster stuck in the first ear picking plate and the second ear picking plate during the continuous downward pulling of the stem, which can reduce the accumulation and blockage of the cluster at the end of the first ear picking plate and the second ear picking plate. The ear picking function is realized by the downward pulling of the stem by the high ear picking roller and the low ear picking roller cooperating with the gap of the first ear picking plate and the second ear picking plate, which reduces the contact area and contact time of the cluster with the high ear picking roller and the low ear picking roller, improves the integrity of the cluster, and reduces the problem of cluster seed loss. The stem separation and partial broken stem continue to be transported backward under the action of the stem pulling of the high ear picking roller and the low ear picking roller.

[0009] Further, the first spiral rib is adjacent to the front of the first ear picking roller joint assembly, the plurality of first strong pulling ribs are adjacent to the rear end of the first ear picking roller joint assembly, the second spiral rib and the third spiral rib are located between the first spiral rib and the plurality of first strong pulling ribs, the first spiral rib, the second spiral rib, and the third spiral rib are connected in sequence, and the first spiral rib, the second spiral rib, and the third spiral rib have the same rotation direction.

[0010] The beneficial effect of the above further technical solution is that the first front rib is added between the first spiral rib, the second spiral rib, and the third spiral rib of the low ear picking roller, which further improves the stem pulling effect of the low ear picking roller.

[0011] Further, the diameter of the first spiral rib is 10 mm, the diameter of the second spiral rib is 8 mm, and the diameter of the third spiral rib is 6 mm.

[0012] Further, the high ear picking roller comprises a second ear picking roller joint assembly, a fourth spiral rib, and a plurality of second tensioning steel bars, the fourth spiral rib and the plurality of second tensioning steel bars are installed on the second ear picking roller joint assembly, a plurality of second front steel bars are arranged between the fourth spiral ribs, the plurality of second front steel bars are parallel to the axis of the second ear picking roller joint assembly, a stem pulling plate is arranged on the second ear picking roller joint assembly, the fourth spiral rib is located between the stem pulling plate and the plurality of second tensioning steel bars, and the length of the stem pulling plate is less than the length of the high ear picking roller.

[0013] The beneficial effects of the above further technical solutions are that the first spiral rib and the three sections of the first front steel bar arranged in the circumferential direction of the low ear picking roller, and the second spiral rib and the four sections of the first front steel bar arranged in the circumferential direction of the second spiral rib, cooperate with the six stem pulling plates in the front half of the high ear picking roller to pull the stems downward. During the rotation of the high ear picking roller and the low ear picking roller, the first front steel bar of the low ear picking roller cooperates with the stem pulling plate of the high ear picking roller to reduce the gap between the high ear picking roller and the low ear picking roller, increase the extrusion force and contact time of the high ear picking roller and the low ear picking roller on the stems, improve the stem pulling effect of the high ear picking roller and the low ear picking roller, realize the ear picking function by pulling the stems downward through the gap between the first ear picking plate and the second ear picking plate, reduce the contact area and contact time of the ears and the high ear picking roller and the low ear picking roller, improve the integrity of the ears, and reduce the problem of seed loss of the ears. The stems that have not been separated and the partially broken stems continue to be transported backward under the action of the stem pulling of the high ear picking roller and the low ear picking roller.

[0014] Further, the high ear picking roller comprises a third ear picking roller joint assembly and a plurality of stem pulling plates arranged on the third ear picking roller joint assembly.

[0015] The beneficial effects of the above further technical solutions are that the first front steel bar of the low ear picking roller cooperates with the stem pulling plate of the high ear picking roller to reduce the gap between the high ear picking roller and the low ear picking roller, increase the extrusion force and contact time of the high ear picking roller and the low ear picking roller on the stems, and improve the stem pulling effect of the high ear picking roller and the low ear picking roller.

[0016] Further, the length of the stem pulling plate is equal to the length of the ear picking roller.

[0017] The beneficial effects of the above further technical solutions are that the stem pulling plate is adapted to the ear picking roller, and the stem pulling effect of the ear picking roller is improved.

[0018] Further, the length of the first ear picking plate ranges from one-half to three-fourths of the length of the ear picking roller.

[0019] The beneficial effect of the further technical solution is that the length of the ear picking plate matches the length of the ear picking roller, improving the stem pulling effect.

[0020] Further, the pair of ear picking rollers is connected with an ear picking gear box, the upper portion of the first ear picking plate is provided with a weeding gear chain, the weeding gear chain is connected with a weeding gear chain gear box and a weeding gear chain tensioning device; the front portion of the first ear picking plate and / or the second ear picking plate is provided with an ear picking plate guide plate, and the rear portion of the first ear picking plate is provided with a rubber baffle or a metal baffle.

[0021] The beneficial effect of the further technical solution is that the ear picking gear box drives the ear picking roller to rotate, the moving weeding gear chain pushes the stems into the middle channel of the ear picking device, and the first front cone, the second front cone and the third front cone guide the stems into the ear picking roller. The ear picking plate guide plate can smoothly transition the stems to the ear picking plate, and can reduce the problems of stem jamming and feeding blockage. The rubber baffle or the metal baffle can reduce the impact between the ears and the ear picking roller, and can reduce the problem of seed drop of the ears.

[0022] In addition, the present application also provides a harvesting machine comprising the ear picking device of any one of the above.

[0023] The beneficial effect of the technical solution of the present application is that the ear picking function is realized by pulling the stems downward by the high ear picking roller and the low ear picking roller in cooperation with the gap between the first ear picking plate and the second ear picking plate, the contact area and contact time between the ears and the high ear picking roller and the low ear picking roller are reduced, the integrity of the ears is improved, the problem of seed drop of the ears is reduced. The problem of seed drop of the ears is improved when harvesting corn ears with low water content; the stem pulling effect of the ear picking roller is improved, the problem of blockage is reduced, the harvesting effect and the operation efficiency are improved, the user satisfaction is improved, and the model is convenient for popularization.

[0024] The advantages of the additional aspects of the present application will be partially given in the following description, partially will become obvious from the following description, or will be understood by the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The structure schematic diagram of the ear picking device provided for the embodiment of the present application.

[0026] Figure 2 The structure schematic diagram of the ear picking roller provided for the embodiment of the present application.

[0027] Figure 3 The structure schematic diagram of the ear picking roller provided for the embodiment of the present application.

[0028] Figure 4 The structure schematic diagram of the ear picking roller provided for the embodiment of the present application.

[0029] Explanation of reference numerals: 1, first ear picking plate; 2, stem pulling plate; 3, first ear picking roller joint assembly; 4, first spiral rib; 5, second spiral rib; 6, third spiral rib; 7, first strong pulling rib; 8, first front rib; 9, first front cone; 10, first ear picking roller front support; 11, first ear picking roller reverse rib; 12, second ear picking roller joint assembly; 13, fourth spiral rib; 14, second strong pulling rib; 15, second front rib; 16, second front cone; 17, second ear picking roller front support; 18, second ear picking roller reverse rib; 19, second ear picking plate; 20, ear picking tooth box; 21, swathing tooth chain; 22, swathing chain tooth box; 23, swathing chain tensioning device; 24, ear picking plate flow guide; 25, rubber baffle; 26, third ear picking roller joint assembly; 27, third ear picking roller front support; 28, third front cone. DETAILED DESCRIPTION

[0030] The principles and features of the present application are described below in conjunction with the accompanying drawings, and the examples are only used to explain the present application and not to limit the scope of the present application.

[0031] As shown in the drawings, Figures 1 to 4 An ear picking device comprises: a pair of ear picking rollers including a high ear picking roller and a low ear picking roller, the pair of ear picking rollers are arranged adjacent to each other and high and low to each other; a first ear picking plate 1 is arranged above the low ear picking roller, and a gap is formed between the first ear picking plate 1 and the low ear picking roller; a second ear picking plate 19 is arranged above the high ear picking roller; and a gap is formed between the second ear picking plate 19 and the high ear picking roller.

[0032] The height of the low ear picking roller in the pair of ear picking rollers is less than the height of the high ear picking roller, and at least one ear picking roller (the low ear picking roller or the high ear picking roller) is provided with a plurality of stem pulling plates 2.

[0033] The beneficial effects of the technical scheme of the present application are: the ear picking function is realized by the high ear picking roller and the low ear picking roller pulling the stem downward in cooperation with the gap of the first ear picking plate and the second ear picking plate, the contact area and contact time of the ear between the high ear picking roller and the low ear picking roller are reduced, the integrity of the ear is improved, and the problem of seed dropping of the ear is reduced. The problem of seed dropping of the ear of corn with low water content during harvesting is improved; the stem pulling effect of the ear picking roller is improved, the problem of blockage is reduced, the harvesting effect and work efficiency are improved, the user satisfaction is improved, and the machine type is convenient for popularization.

[0034] As shown in the drawings, Figures 1 to 4As shown, further, the low stripping roller comprises: a first stripping roller joint assembly 3, a first spiral rib 4, a second spiral rib 5, a third spiral rib 6, and a plurality of first strong pulling steel bars 7, the first spiral rib 4, the second spiral rib 5, the third spiral rib 6, and the plurality of first strong pulling steel bars 7 are all installed on the first stripping roller joint assembly 3, a plurality of first front steel bars 8 are arranged between the first spiral rib 4, the second spiral rib 5, and the third spiral rib 6, and the plurality of first front steel bars 8 are parallel to the axis of the first stripping roller joint assembly 3.

[0035] The beneficial effects of the above further technical solutions are: by adding the first front steel bars between the first spiral rib, the second spiral rib, and the third spiral rib of the low stripping roller, the stem pulling effect of the low stripping roller is further improved. The first spiral rib, the three sections of the first front steel bars arranged in the circumferential direction, the second spiral rib, and the four sections of the first front steel bars arranged in the circumferential direction of the low stripping roller cooperate with the six pieces of stem pulling plates in the front 1 / 2 of the high stripping roller to pull the stem downward. During the rotation of the high stripping roller and the low stripping roller, the first front steel bars of the low stripping roller cooperate with the stem pulling plates of the high stripping roller to reduce the gap between the high stripping roller and the low stripping roller, increase the extrusion force and contact time of the high stripping roller and the low stripping roller on the stem, and improve the stem pulling effect of the high stripping roller and the low stripping roller. At the same time, the first spiral rib, the second spiral rib, and the third spiral rib of the low stripping roller can realize the pushing ability of the cluster stuck in the first stripping plate and the second stripping plate during the continuous downward pulling of the stem, can reduce the accumulation and blockage of the cluster at the end position of the first stripping plate and the second stripping plate, realize the stripping function by the downward pulling of the stem by the high stripping roller and the low stripping roller cooperating with the gap of the first stripping plate and the second stripping plate, reduce the contact area and contact time of the cluster with the high stripping roller and the low stripping roller, improve the integrity of the cluster, and reduce the problem of cluster seed dropping. The stem separation and partial broken stem continue to be transported backward under the stem pulling effect of the high stripping roller and the low stripping roller.

[0036] The plurality of first front steel bars 8 are parallel to the axis of the first stripping roller joint assembly 3. The first front steel bars play a role in pulling the stem and improving the stem pulling effect. The plurality of first strong pulling steel bars are not equal in length, and the length is determined according to the curve of the third spiral rib 6, which is used to further improve the stem pulling effect.

[0037] The length of the first front steel bars 8 must be within the spiral pitch (the pitch of the first spiral rib 4, the second spiral rib 5, and the third spiral rib 6, and the pitch between the first spiral rib 4 and the second spiral rib 5, and the pitch between the second spiral rib 5 and the third spiral rib 6), and the angle has no requirement.

[0038] As shown in the drawings, Figures 1 to 4As shown, further, the front of the first stripping roller joint assembly 3 is provided with a first front cone 9, the first front cone 9 is provided with a spiral protrusion, and the first front cone 9 and the first stripping roller joint assembly 3 are provided with a first stripping roller front support 10; the rear end of the first stripping roller joint assembly 3 is provided with a first stripping roller reverse reinforcing bar 11, and the rotation direction of the first stripping roller reverse reinforcing bar 11 is opposite to that of the first spiral reinforcing bar 4.

[0039] The beneficial effects of the above further technical solutions are: the first front cone is used to guide the stems into the stripping roller. The spiral protrusion improves the guiding efficiency. The first stripping roller reverse reinforcing bar has the effect of preventing grass entanglement. Among them, the rotation direction of the first stripping roller reverse reinforcing bar 11 is opposite to that of the main spiral (first spiral reinforcing bar), and the first stripping roller reverse reinforcing bar 11 is a reverse spiral.

[0040] The first spiral reinforcing bar 4 is adjacent to the front of the first stripping roller joint assembly 3, a plurality of first strong pulling reinforcing bars 7 are adjacent to the rear end of the first stripping roller joint assembly 3, the second spiral reinforcing bar 5 and the third spiral reinforcing bar 6 are located between the first spiral reinforcing bar 4 and the plurality of first strong pulling reinforcing bars 7, the first spiral reinforcing bar 4, the second spiral reinforcing bar 5 and the third spiral reinforcing bar 6 are connected in sequence, and the rotation directions of the first spiral reinforcing bar 4, the second spiral reinforcing bar 5 and the third spiral reinforcing bar 6 are the same.

[0041] The beneficial effects of the above further technical solutions are: by increasing the first front reinforcing bar between the first spiral reinforcing bar, the second spiral reinforcing bar and the third spiral reinforcing bar of the low stripping roller, the stem pulling effect of the low stripping roller is further improved.

[0042] The diameter of the first spiral reinforcing bar 4 is 10mm, the diameter of the second spiral reinforcing bar 5 is 8mm, the diameter of the third spiral reinforcing bar 6 is 6mm, and the number of the first strong pulling reinforcing bar 7 is 4 segments.

[0043] The two groups of stripping rollers are installed in a trumpet shape, the front end gap is large, and the rear end gap is small, so the outer diameter of the third spiral reinforcing bar at the rear end is small to adapt to the structure of the two groups of stripping rollers.

[0044] As shown in the drawings, Figures 1 to 4 As shown, further, the high stripping roller comprises: a second stripping roller joint assembly 12, a fourth spiral reinforcing bar 13, and a plurality of second strong pulling reinforcing bars 14, the fourth spiral reinforcing bar 13 and the plurality of second strong pulling reinforcing bars 14 are all installed on the second stripping roller joint assembly 12, a plurality of second front reinforcing bars 15 are provided between the fourth spiral reinforcing bars 13, the plurality of second front reinforcing bars 15 are parallel to the axis of the second stripping roller joint assembly 12, a stem pulling plate 2 is provided on the second stripping roller joint assembly 12, the fourth spiral reinforcing bar 13 is located between the stem pulling plate 2 and the plurality of second strong pulling reinforcing bars 14, and the length of the stem pulling plate 2 is less than the length of the high stripping roller.

[0045] The beneficial effects of the further technical solutions are that the first helical rib and the three sections of the first front rib and the second helical rib and the four sections of the first front rib arranged in the circumference of the low earing roller are matched with the six stem pulling plates of the high earing roller to pull the stems downward. During the rotation of the high earing roller and the low earing roller, the first front rib of the low earing roller is matched with the stem pulling plates of the high earing roller to reduce the gap between the high earing roller and the low earing roller, increase the extrusion force and the contact time of the high earing roller and the low earing roller and the stems, improve the stem pulling effect of the high earing roller and the low earing roller, realize the earing function through the gap between the high earing roller, the low earing roller and the first earing plate and the second earing plate, reduce the contact area and the contact time of the ears and the high earing roller and the low earing roller, improve the integrity of the ears and reduce the problem of seed loss of the ears. The stems are not separated and the part of the stems are broken and continue to be transported backward under the action of the stem pulling of the high earing roller and the low earing roller.

[0046] As shown in Figure 3 , further, the front part of the second earing roller joint assembly 12 is provided with a second front cone 16, the second front cone 16 is provided with a helical protrusion, and the second front cone 16 and the second earing roller joint assembly 12 are provided with a second earing roller front support 17; the rear end of the second earing roller joint assembly 12 is provided with a second earing roller reverse steel wire 18, the rotation direction of the second earing roller reverse steel wire 18 is opposite to that of the fourth helical rib 13; the fourth helical rib 13 is located between the stem pulling plate 4 and the plurality of second strong pulling steel wires 14, the number of the stem pulling plate 2 is six, the diameter of the fourth helical rib 13 is 6 mm, and the number of the second front rib 15 is three sections, and the number of the second strong pulling steel wire 14 is four sections.

[0047] The beneficial effects of the further technical solutions are that the second front cone is used to guide the stems into the earing roller. The second earing roller reverse steel wire has the effect of preventing entanglement of the stems.

[0048] As shown in Figure 4 , the high earing roller can include a third earing roller joint assembly 26, a third earing roller front support 27, a third front cone 28 and a plurality of stem pulling plates 2, the stem pulling plate 2 and the third earing roller front support 27 are both installed on the third earing roller joint assembly 26, the third front cone 28 is installed on the front part of the third earing roller joint assembly 26, and the third earing roller front support 27 is arranged adjacent to the third front cone 28.

[0049] Further, the high earing roller includes a third earing roller joint assembly and a plurality of stem pulling plates arranged on the third earing roller joint assembly.

[0050] The beneficial effect of the further technical scheme is that the first front steel wire of the low ear picking roller cooperates with the stem pulling plate of the high ear picking roller to reduce the gap between the high ear picking roller and the low ear picking roller, increase the extrusion force and contact time of the high ear picking roller and the low ear picking roller with the stem, and improve the stem pulling effect of the high ear picking roller and the low ear picking roller.

[0051] As shown in Figures 3 to 4 , further, the length of the stem pulling plate 2 is less than the length of the ear picking roller, or the length of the stem pulling plate 2 is equal to the length of the ear picking roller.

[0052] The beneficial effect of the further technical scheme is that the stem pulling plate is matched with the ear picking roller, and the stem pulling effect of the ear picking roller is improved.

[0053] As shown in Figure 1 , further, the pair of ear picking rollers are arranged adjacent to each other, and the length of the first ear picking plate 1 ranges from one half of the length of the ear picking roller to three quarters of the length of the ear picking roller.

[0054] The beneficial effect of the further technical scheme is that the length of the ear picking plate matches the length of the ear picking roller, and the stem pulling effect is improved.

[0055] The length of the second ear picking plate 19 and the first ear picking plate 1 can range from 1 / 3 of the length of the ear picking roller (high ear picking roller or low ear picking roller) to the full length of the ear picking roller (high ear picking roller or low ear picking roller). The gap between the first ear picking plate 1 and the low ear picking roller and the gap between the second ear picking plate 19 and the high ear picking roller are both less than or equal to 10 mm, and the adjustment range of the ear picking roller (high ear picking roller or low ear picking roller) meets the non-interference standard.

[0056] As shown in Figures 1 to 4 , further, the pair of ear picking rollers are connected with an ear picking tooth box 20, the upper part of the first ear picking plate 1 is provided with a raking tooth chain 21, the raking tooth chain 21 is connected with a raking chain tooth box 22 and a raking chain tensioning device 23, the front part of the first ear picking plate 1 and / or the second ear picking plate 19 is provided with an ear picking plate guide plate 24, and the rear part of the first ear picking plate 1 is provided with a rubber baffle 25 or a metal baffle.

[0057] The beneficial effect of the further technical scheme is that the ear picking tooth box drives the ear picking roller to rotate, the moving raking tooth chain pushes the stem into the middle channel of the ear picking device, the first front cone, the second front cone and the third front cone guide the stem into the ear picking roller. The ear picking plate guide plate smoothly transitions the stem to the first ear picking plate and the second ear picking plate, and the ear picking plate guide plate can reduce the problems of stem jamming and feeding blockage. The rubber baffle or the metal baffle can reduce the collision between the ear picking roller and the ear, and reduce the problem of ear seed dropping.

[0058] The rear part of the second ear picking plate 19 can also be provided with a rubber baffle 25 or a metal baffle.

[0059] The ear picking device provided by the embodiment of the present application can be a low-loss roller type corn header ear picking device, and aims to solve the problems of: 1. improving the problem of dropping kernels during harvesting of corn ears with low water content; 2. improving the stem pulling effect of the ear picking roller, reducing the problem of blockage, improving the harvesting effect and operation efficiency, improving the user satisfaction, and facilitating the promotion of the machine type.

[0060] The diameter of the first spiral rib 4 can be The diameter of the second spiral rib 5 can be The diameter of the third spiral rib 6 can be The number of the first front steel bar 8 can be 11 segments, and the diameter can be The number of the first strong pulling steel bar 7 can be 4 segments, and the diameter can be The number of the first ear picking roller reverse steel bar 11 can be 2 segments.

[0061] The number of the stem pulling plate 2 can be 6 pieces, and the diameter of the fourth spiral rib 13 can be The number of the second front steel bar 15 can be 3 segments, the number of the second strong pulling steel bar 14 can be 4 segments, and the number of the second ear picking roller reverse steel bar 18 can be 2 segments.

[0062] The stripper tooth box 20 drives a pair of stripping rollers (high stripping roller and low stripping roller) to rotate, the moving stripping tine chain 21 pushes the stalk into the middle channel of the stripping device, the first front cone 9 and the second front cone 16 guide the stalk into the pair of stripping rollers, the stripping plate guide vane 24 smoothly transitions the stalk to the first stripping plate and the second stripping plate, the first helical rib 4, the second helical rib 5 and the third helical rib 6 at the front 1 / 2 of the low stripping roller and the three sections of the first front reinforcing rib 8 arranged in the circumference cooperate with the six stalk pulling plates 2 at the front 1 / 2 of the high stripping roller to pull the stalk downward, the cooperation gap of the first stripping plate and the second stripping plate is adjusted, in the process of pulling the stalk downward by the stripping rollers (high stripping roller and low stripping roller), the corn ear is clamped above the first stripping plate 1 and the second stripping plate 19 by the cooperation gap of the first stripping plate and the second stripping plate, and the stalk is continuously pulled downward, so that the separation of the corn ear and the stalk is realized, the stripped corn ear slides along the first stripping plate 1 to the corn ear conveying device; the stripping plate guide vane 24 can reduce the problems of clamping the stalk and feeding blockage, in the process of rotating the two groups of stripping rollers, the second front reinforcing rib 15 of the low stripping roller cooperates with the stalk pulling plate of the high stripping roller, so that the gap between the two stripping rollers is reduced, the extrusion force and the contact time of the stripping rollers and the stalk are increased, and the stalk pulling effect of the stripping rollers is improved, meanwhile, the fourth helical rib 13 of the high stripping roller can realize the pushing and conveying of the corn ear clamped at the first stripping plate and the second stripping plate in the process of continuously pulling the stalk downward, so that the problems of accumulation and blockage of the corn ear at the end position of the first stripping plate and the second stripping plate are reduced, the stripping function is realized by pulling the stalk downward by the stripping rollers and cooperating with the gap of the first stripping plate and the second stripping plate, the contact area and the contact time of the corn ear and the stripping rollers are reduced, the integrity of the corn ear is improved, and the problem of seed dropping of the corn ear is reduced.

[0063] The stalk separation is not realized, and the partially broken stalk is continuously conveyed backward under the pulling action of the stripping rollers, the rubber baffle 25 is arranged above the low stripping roller at the rear 1 / 2 of the two groups of stripping rollers, the first front reinforcing rib is arranged in the circumference at the position of the front helical rib (the first helical rib 4, the second helical rib 5 and the third helical rib 6), the first front reinforcing rib can assist in pulling the stalk in the process of pulling the stalk downward, the first strong pulling reinforcing rib is uniformly arranged in the circumference at the rear end, the remaining stalks that are not pulled downward are forcibly pulled downward, the forced pulling function is realized, and the accumulation of the stalks is reduced, the first stripping roller reverse reinforcing rib is uniformly arranged in the circumference at the end of the first strong pulling reinforcing rib, and the first stripping roller reverse reinforcing rib has the effect of preventing grass entanglement; the rubber baffle or the metal baffle can reduce the collision between the corn ear and the stripping rollers, and reduce the problem of seed dropping of the corn ear, the first front reinforcing rib is arranged at the position of the helical rib (the first helical rib 4, the second helical rib 5 and the third helical rib 6) of the stripping roller, and the stalk pulling effect of the stripping roller is further improved.

[0064] In addition, the present application also provides a harvesting machine comprising the stripping device.

[0065] The beneficial effects of the technical scheme of the present application are as follows: the ear picking function is realized by pulling the stalks downward by the high ear picking roller and the low ear picking roller and cooperating with the gap of the first ear picking plate and the second ear picking plate, the contact area and contact time of the ear and the high ear picking roller and the low ear picking roller are reduced, the integrity of the ear is improved, and the problem of seed drop of the ear is reduced. The problem of seed drop of the ear of corn with low water content is improved; the pulling effect of the ear picking roller is improved, the problem of blockage is reduced, the harvesting effect and operation efficiency are improved, user satisfaction is improved, and the machine type is convenient to popularize.

[0066] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A device for detaching ears, characterized in that The invention relates to a device for picking ears of grain, comprising: a pair of ear picking rollers, including a high ear picking roller and a low ear picking roller, which are arranged side by side and vertically; a first ear picking plate arranged above the low ear picking roller, and having a gap between the first ear picking plate and the low ear picking roller; a second ear picking plate arranged above the high ear picking roller, and having a gap between the second ear picking plate and the high ear picking roller; the low ear picking roller comprises a first ear picking roller joint, a first spiral rib, a second spiral rib, a third spiral rib, and a plurality of first strong pulling ribs, the first spiral rib, the second spiral rib, the third spiral rib, and the plurality of first strong pulling ribs are all arranged on the first ear picking roller joint, a plurality of first front ribs are arranged between the first spiral rib, the second spiral rib, and the third spiral rib, and the plurality of first front ribs are parallel to the axis of the first ear picking roller joint; the first spiral rib is adjacent to the front of the first ear picking roller joint, the plurality of first strong pulling ribs are adjacent to the rear end of the first ear picking roller joint, the second spiral rib and the third spiral rib are located between the first spiral rib and the plurality of first strong pulling ribs, the first spiral rib, the second spiral rib, and the third spiral rib are sequentially connected, and the first spiral rib, the second spiral rib, and the third spiral rib have the same rotation direction; the high ear picking roller comprises a second ear picking roller joint, a fourth spiral rib, and a plurality of second strong pulling ribs, the fourth spiral rib and the plurality of second strong pulling ribs are all arranged on the second ear picking roller joint, a plurality of second front ribs are arranged between the fourth spiral rib, and the plurality of second front ribs are parallel to the axis of the second ear picking roller joint, a stem pulling plate is arranged on the second ear picking roller joint, the fourth spiral rib is located between the stem pulling plate and the plurality of second strong pulling ribs, and the length of the stem pulling plate is less than the length of the high ear picking roller; the first spiral rib, the first front rib, the second spiral rib, and the first front rib at the front 1 / 2 of the low ear picking roller are matched with the stem pulling plate at the front 1 / 2 of the high ear picking roller to rotate.

2. A device according to claim 1, characterised in that The diameter of the first spiral rib is 10 mm, the diameter of the second spiral rib is 8 mm, and the diameter of the third spiral rib is 6 mm.

3. A device according to claim 1, wherein The length of the first ear picking plate ranges from one-half to three-fourths of the length of the ear picking roller.

4. A device according to claims 1-3, characterized in that A pair of ear picking rollers are connected with an ear picking gear box, a ear picking tine chain is arranged above the first ear picking plate, the ear picking tine chain is connected with an ear picking chain gear box and an ear picking chain tensioning device, a ear picking plate guide plate is arranged at the front of the first ear picking plate and / or the second ear picking plate, and a rubber baffle or a metal baffle is arranged at the rear of the first ear picking plate.

5. A harvester characterized in that, The invention also relates to a device for picking ears of grain, comprising any one of the above claims 1 to 4.

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