Header of vertical corn harvester

Abstract

The utility model discloses a header of a vertical corn harvester, which comprises ear picking rollers and a seedling pulling and clamping mechanism consisting of a straw clamping part and a straw pulling-in part, and is characterized in that the straw pulling-in part consists of two single-row straw pulling-in parts; and the distance between the straw outlets of the two single-row straw shifting-in components is equal to the corn row spacing. Compared with the prior art, the header of the corn harvester has the advantages that during one-way operation of the header of the corn harvester, the number of rows for harvesting corns is twice that of the rows for harvesting corns in the prior art, so that the operation efficiency is doubled, the operation cost is reduced by nearly 50%, and remarkable economic benefits are brought.

Description

Technical Field

[0001] The utility model relates to a crop harvesting machine, more specifically a cutting platform of a vertical corn harvester. Background Art

[0002] Existing vertical corn harvesters primarily consist of a frame, power system, ear box, and header. The header, as the core operating component, is responsible for harvesting both corn stalks and ears. It primarily consists of a frame, a stalk shearing mechanism, an ear conveying auger, a stalk-pulling and ear-removing mechanism, and a straw-pulling and clamping mechanism.

[0003] The stalk-pulling and ear-picking mechanism consists of multiple pairs of ear-picking rollers and their drive transmission components. Each pair of ear-picking rollers consists of a main roller and a secondary roller, the gap between which constitutes its straw-biting opening. The function of the straw-biting opening is to bite in and deliver the straw, while simultaneously picking the corn ears. Existing ear-picking rollers mainly have two structural forms: one is called an "equal-diameter ear-picking roller pair." The main and secondary rollers of this ear-picking roller pair have the same roller diameter; the main roller is a split roller, and is composed of an upper roller, a power sprocket, and a lower roller coaxially connected from top to bottom; the secondary roller is composed of a full-body roller; the roller surfaces of the upper and lower rollers of the main roller, as well as the roller surface of the secondary roller, are provided with a number of ribs extending along the entire axial length of the roller body and spaced along the circumference of the roller body. The ribs are composed of straight steel bars of arbitrary cross-sectional shapes. The other is called a "large and small roller ear-picking roller pair." The roller body diameter of the main roller of this ear-picking pair of rollers is larger than the roller body diameter of the auxiliary roller; the main roller is also a split roller, and is composed of an upper roller, a power sprocket and a lower roller coaxially connected from top to bottom; the auxiliary roller is composed of a full-body roller; the roller body surface of the lower roller of the main roller and the roller body surface of the auxiliary roller are provided with a plurality of straight convex ribs along the entire axial length of the roller body and distributed along the circumferential spacing of the roller body; the roller body surface of the upper roller of the main roller is provided with a plurality of convex ribs along the entire axial length of the roller body and distributed along the circumferential spacing, and the upper part of the convex rib is straight, and a small section of the lower end is spiral; the convex ribs of each part are composed of steel bars of arbitrary cross-sectional shapes.

[0004] The driving transmission component of the ear picking roller pair is composed of a power transmission component between the power output end of the corn harvester and the power input ends of the main and auxiliary rollers of the mechanism.

[0005] The straw-pulling and clamping mechanism assembly includes at least one straw-pulling and clamping mechanism. This straw-pulling and clamping mechanism often adopts a "stalk chain + straw chain" structure, meaning both the straw-pulling and straw-clamping actuators are straw chains. The straw-pulling chain is composed of a chain and a number of straw-pulling fingers, or raised members spaced apart on the chain. The straw-pulling and clamping mechanism consists of a straw-clamping component and a straw-pulling component.

[0006] The straw clamping and conveying component mainly consists of a rod-shaped straw guide rail, a rod-shaped main chain clamping frame, and a main reel chain and its driving transmission device and tensioning device arranged on the chain clamping frame. Among them, the straw guide rail and the main chain clamping frame are arranged in parallel, and the gap between them forms a straw clamping and conveying channel.

[0007] The task of the straw clamping and conveying component is to convey the ear-bearing corn straw dialed by the straw dialing component to the paired ear-picking rollers for picking corn ears and to send out the straw.

[0008] The straw dialing component consists of a single-row straw dialing component, which refers to a component that can only perform straw dialing operations on one row of corn. This component consists of left and right auxiliary chain clamping frames, and left and right auxiliary reel chains and their driving transmission devices and tensioning devices respectively arranged on each auxiliary chain clamping frame. The two chain segments of the left and right auxiliary reel chains facing each other form a "丷" shape distribution with a larger front opening and a smaller rear opening, and the rear opening constitutes its straw confluence port.

[0009] The task of the straw dialing component is to dial the ear-bearing corn straw cut by the straw shearing mechanism into the front道口 of the straw clamping and conveying channel.

[0010] The main reel chain is driven by the power sprocket wheel arranged on the main roller of the ear-picking roller; the left and right auxiliary reel chains are driven by the main reel chain through power transmission components.

[0011] The number of the arranged ear-picking rollers is the same as that of the dialing and clamping mechanism. [[ID=十六]] [[ID=十七]]

[0012] When assembling the cutting table, the ear-picking rollers of the pull-rod ear-picking mechanism are all vertically placed at the rear end of the cutting table frame and arranged in a row at intervals along the width direction of the cutting table; the straw shearing mechanism is arranged under the front part of the cutting table frame; the ear conveying auger is arranged on the cutting table frame between the straw shearing mechanism and the pull-rod ear-picking mechanism, and the dialing and clamping mechanism assembly is arranged on the cutting table frame and located in front of the pull-rod ear-picking mechanism. The front道口 of the straw clamping and conveying channel of each dialing and clamping mechanism is对接 with the straw confluence port of the paired straw dialing component, and its rear道口 is对接 with the straw biting port of a paired ear-picking roller; each straw dialing component is arranged at equal intervals along the transverse direction of the cutting table, and the distance between the straw confluence ports of each straw dialing component, that is, the single-row corn dialing component, is equal to the corn row spacing.

[0013] The shortcomings of existing harvesting platforms: Due to the structural layout of the various functional mechanisms of the corn harvester, the width of the harvesting platform cannot be increased arbitrarily, resulting in a maximum of five pairs of ear-picking rollers. Because each straw-pulling and feeding mechanism requires a pair of ear-picking rollers and is only equipped with a single-row straw feeding component, the harvesting platform can only harvest a maximum of five rows of corn in a single operation. This inevitably leads to a small number of harvested rows and low operation efficiency. Summary of the Invention

[0014] The technical problem to be solved by the present invention is to enable each straw feeding component of the straw clamping and feeding mechanism to have two single-row straw feeding components, so as to increase the number of rows of corn harvested by the harvesting platform in a single pass under the condition of the same number of ears picked, thereby solving the above-mentioned problems existing in the prior art.

[0015] The purpose of the utility model is achieved in this way. It includes a pair of ear picking rollers, a straw plowing and clamping mechanism composed of a straw clamping and feeding component and a straw feeding component. The straw clamping and feeding component includes a straw clamping and feeding channel. The straw feeding component includes left and right auxiliary chain clamping frames and a straw confluence formed therebetween. It is characterized in that a "V"-shaped straw confluence guide rail with an open front end is provided between the rear bodies of the left and right auxiliary chain clamping frames, and a left and right straw confluence channel connected to the straw confluence is formed between the left and right auxiliary chain clamping frames and the inner side surfaces of the left and right auxiliary chain clamping frames.

[0016] The front part of the straw merging guide rail is provided with left and right front chain clamps, left and right front plowing chains and their driving transmission components, and the left auxiliary plowing chain and the left front plowing chain relative chain segments, as well as the right auxiliary plowing chain and the right front plowing chain relative chain segments respectively form left and right single-row straw dialing components, the straw outlets of the left and right single-row straw dialing components are connected to the straw merging channel on the same side thereof, and the distance between the two single-row straw dialing components is equal to the corn row spacing.

[0017] The ear picking roller pair is composed of "equal diameter ear picking roller pair".

[0018] The ear picking roller pair is composed of a large and small roller ear picking roller pair.

[0019] The ear-picking roller pair consists of a main roller and an auxiliary roller, the roller body diameter of the main roller is larger than the roller body diameter of the auxiliary roller; the main roller is a split roller, which is formed by coaxially connecting an upper roller, a power sprocket, and a lower roller; the auxiliary roller is a full-body roller; a spiral rib is provided on the lower roller body surface of the upper roller, and a plurality of protrusions are provided on the roller body surface of the upper roller at the position where the spiral rib is located, and a plurality of straight ribs are provided on the roller body surface of the upper roller at the upper end of the spiral rib, the roller body surface of the lower roller, and the roller body surface of the auxiliary roller along the entire longitudinal length of the roller body and distributed along the circumference of the roller body.

[0020] The ear-picking roller pair consists of a main roller and an auxiliary roller, the roller body diameter of the main roller is larger than the roller body diameter of the auxiliary roller; the main roller is a split roller, which is formed by coaxially connecting an upper roller, a power sprocket, and a lower roller; the auxiliary roller is a full-body roller; spiral ribs are provided on the surface of the lower roller body of the upper roller, and a number of protrusions are made on the roller body surface of the upper roller, the roller body surface of the lower roller, and the roller body surface of the auxiliary roller outside the contact surface of the spiral ribs with the lower roller body, so as to form a hemp pattern surface.

[0021] A weeding device is respectively arranged on the left and right sides of the lower front end of the straw clamping channel, and the left weeding device consists of a weeding knife fixedly arranged on the side frame and an anti-blocking half-panel fixedly arranged on the power output shaft located on the left side of the rear reverse gear box; the right weeding device consists of a weeding knife fixedly arranged on the side frame and an anti-blocking half-panel fixedly arranged on the power input shaft located on the rear reverse gear box, and a set gap is maintained between the anti-blocking half-panel of each weeding device and the weeding knife.

[0022] The number of the ear-picking roller pairs is at least one, and the number of the straw-pulling and clamping mechanisms is the same as the number of the ear-picking roller pairs.

[0023] After the implementation of the utility model, the number of single-row straw feeding components contained in each straw-feeding mechanism is changed from one to two. Therefore, in its single-pass operation, the number of rows of corn harvested is twice that of the prior art, thereby doubling the operating efficiency and reducing the operating cost by nearly 50%, thereby bringing significant economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of the cutting platform of the utility model

[0025] Figure 2 This is a schematic diagram of the first structural form of the straw-pulling and clamping mechanism of the utility model.

[0026] Figure 3 This is a schematic diagram of the transmission connection relationship of the drive sprockets of each weeding chain and the structural form of the weeding device of the utility model.

[0027] Figure 4 This is a schematic diagram of the drive transmission system structure of the straw-pulling and feeding mechanism of the utility model.

[0028] Figure 5 This is a schematic diagram of the second structural form of the straw-pulling and feeding mechanism assembly of the utility model.

[0029] Figure 6 This is a schematic diagram of the third structural form of the straw-pulling and feeding mechanism assembly of the utility model.

[0030] Figure 7This is a schematic diagram of the fourth structural form of the straw-pulling and feeding mechanism assembly of the utility model.

[0031] Figure 8 This is a schematic diagram of the fifth structural form of the straw-pulling and feeding mechanism assembly of the utility model.

[0032] Figure 9 This is a schematic diagram of the structure of the ear picking roller of the utility model.

[0033] Figure 10 yes Figure 9 AA section of the upper roller of the middle main roller

[0034] Figure 11 yes Figure 9 BB section of the lower roller of the middle main roller

[0035] Figure 12 yes Figure 9 Cross-section of the middle and auxiliary rollers

[0036] Figure 13 This is a schematic diagram of the second structural form of the ear picking roller of the utility model.

[0037] Figure 14 yes Figure 13 Cross-section of the upper roller of the middle main roller

[0038] Figure 15 yes Figure 13 Cross-section of the middle and auxiliary rollers

[0039] The names of the parts in the attached drawings are: 1-frame, 2-pulling and ear-picking mechanism, 3-power sprocket, 4-grazing clamping and feeding mechanism assembly, 5-straw shearing mechanism, 6-grazing rollers, 7-main rollers, 8-auxiliary rollers, 9-straw clamping and feeding guide rails, 10-main chain clamping frame, 11-main grain-picking chain, 12-double sprockets, 13-drive sprockets, 14-drive sprockets, 15-tensioning sprockets, 16-straw converging guide rails, 17-left auxiliary sprocket frame, 18-left auxiliary grain-picking chain, 19-sprocket support, 20-drive sprocket, 21-drive sprocket, 22-sprocket support, 23-drive sprocket, 24-left front grain-picking chain, 25-left front chain clamping frame, 26-tensioning sprocket, 27-tensioning sprocket, Tightening sprocket, 28-right front chain clamp, 29-drive sprocket, 30-right front plowing chain, 31-sprocket support, 32-drive sprocket, 33-drive sprocket, 34-right auxiliary chain clamp, 35-right auxiliary plowing chain, 36-tensioning sprocket, 37-drive sprocket, 38-tensioning sprocket, 39-anti-blocking half panel, 40-weeding knife, 41-rear reverse gearbox, 42-power output sprocket, 43-power input sprocket, 44-drive chain, 45-front reverse gearbox, 46-upper roller, 47-spiral rib, 48-protrusion, 49-lower roller, 50-linear rib, 51-linear rib, 52-upper roller, 53-lower roller, 54-fruit ear conveying augers. DETAILED DESCRIPTION

[0040] The main similarities between the utility model and the prior art are:

[0041] Depend on Figure 1 It can be seen that the cutting platform of the present invention includes the frame 1, the straw pulling and ear picking mechanism 2, the straw pulling and clamping mechanism assembly 4, the straw shearing mechanism 5, the ear conveying auger 54 and the driving transmission components thereof in the prior art. Among them:

[0042] The stalk pulling and ear plucking mechanism 2 comprises at least one pair of ear plucking rollers 6. These rollers consist of a main roller 7 and a secondary roller 8. The main roller is a split roller consisting of an upper roller, a power sprocket 3, and a lower roller; the secondary roller is a solid roller. These rollers can be either the "large and small rollers" or the "equal diameter rollers" commonly used in the prior art.

[0043] In actual application, the number of ear picking rollers is the same as the number of straw plucking and feeding mechanisms.

[0044] Each straw-feeding mechanism in the described straw-feeding assembly consists of a straw-feeding component and a straw-feeding component. The straw-feeding component is constructed identically to the prior art, primarily comprising a straw-feeding guide rail 9, a main chain clamping frame 10, its associated main straw-feeding chain 11, and a drive transmission component for the main straw-feeding chain 11. The straw-feeding guide rail 9 and the main chain clamping frame 10 are arranged parallel to each other, with the gap between them forming a straw-feeding channel.

[0045] The structures of the straw shearing mechanism 4 and the ear conveying auger 54 of the present invention, as well as the driving and transmission components of the functional components of the straw pulling and ear picking mechanism 2, the straw shearing mechanism 4, and the ear conveying auger 54 are the same as those in the prior art.

[0046] The driving transmission principle of each straw chain of the straw clamping mechanism is also the same as that of the prior art, that is, the main straw chain 11 is driven by the power sprocket 3 arranged on the main roller of the ear picking roller pair matched with it; the remaining straw chains are all driven by the main straw chain 11 through the transmission components.

[0047] The main contribution of the utility model to the existing technology is to improve the structure of the straw feeding component of the existing straw feeding mechanism, so that it has two single-row straw feeding components. Figure 2 visible:

[0048] The straw feeding-in component of the present utility model includes the left and right auxiliary chain clip brackets 17 and 34 in the prior art, the left and right auxiliary reel chains 18 and 35 assembled thereon, and the driving and transmission components of the left and right auxiliary reel chains. The inner sides of the left and right auxiliary chain clip brackets, that is, the sides facing each other, form a front end, that is, the upper end opening shown in the figure is larger, and the lower end opening is smaller, presenting a "丷" - shaped distribution. The lower end opening constitutes the straw confluence port B of the straw feeding-in component.

[0049] The creative point of the straw feeding-in component of the present utility model is as follows: at the rear part of the left and right auxiliary chain clip brackets 17 and 34, that is, between the lower part bodies shown in the figure, a front end opening is provided, that is, Figure 2 the "V" - shaped straw confluence guide rail 16 with an upper end opening as shown in the figure is provided, and a left and right straw confluence channels communicating with the straw confluence port B are formed between the "V" - shaped straw confluence guide rail 16 and the inner sides of the left and right auxiliary chain clip brackets. That is, the left body of the "V" - shaped straw confluence guide rail 16 and the opposite side of the rear part body of the left auxiliary chain clip bracket 17 are arranged parallel to each other with a certain distance, and the gap between them forms the left straw confluence channel; the right body of the "V" - shaped straw confluence guide rail 16 and the opposite side of the rear part body of the right auxiliary chain clip bracket 34 are arranged parallel to each other with a certain distance, and the gap between them forms the right straw confluence channel, and the lower ports of the left and right straw confluence channels are communicated with the straw confluence port B.

[0050] At the front part of the straw confluence guide rail 16, that is, at the upper part shown in the figure, left and right front chain clip brackets 25 and 28, left and right front reel chains 24 and 30 and their driving and transmission components are provided; and the relative chain segments between the left auxiliary reel chain 18 and the left front reel chain 24, and the relative chain segments between the right auxiliary reel chain 35 and the right front reel chain 30 respectively form left and right single - row straw feeding-in components; the straw outlets A1 and A2 of the left and right single - row straw feeding-in components are communicated with the straw confluence channels on their same sides, and at the same time, the distance between the left and right single - row straw feeding-in components is equal to the corn row spacing.

[0051] The so - called single - row straw feeding-in component includes the following meanings:

[0052] 1. Between the relative chain segments of the left auxiliary reel chain 18 and the left front reel chain 24, and between the relative chain segments of the right auxiliary reel chain 35 and the right front reel chain 30, front ports are formed, that is, the upper end opening shown in the figure is larger, and the lower end opening is smaller, presenting a "丷" - shaped distribution. Among them, the lower end port formed between the relative chain segments of the left auxiliary reel chain 18 and the left front reel chain 24 constitutes its straw outlet A1; the lower end port formed between the relative chain segments of the right auxiliary reel chain 35 and the right front reel chain 30 constitutes its straw outlet A2.

[0053] 2. The straw outlets A1 and A2 are respectively connected to the front end openings of the straw confluence channels on their same sides;

[0054] 3. During operation, this component can implement the straw pushing operation for a row of corn.

[0055] In actual production, the merging guide rail 16 and the left and right front chain clamps 25 and 28 are all fixedly arranged on the frame of the header through connecting members.

[0056] When assembling the straw-pushing and clamping mechanism of the present invention, the straw clamping and conveying component thereof is connected with the straw confluence port B of the straw-pushing component through the front end opening C of the straw clamping and conveying channel thereof.

[0057] The design principles and specific construction methods of the driving transmission components of the various reel chains of the above-mentioned reel-pulling and clamping mechanism are as follows:

[0058] 1. Design principles of the driving and transmission components of each part of the reed chain of the reed clamping and feeding mechanism

[0059] In order to enable the cutting platform of the present invention to achieve ideal operating results, the present invention, like the existing more advanced technologies, ensures that the running directions of the straw-clamping and conveying chains of each part of the straw-clamping and conveying mechanism meet the operating needs, and the main straw-clamping chain 11 of the straw-clamping and conveying component has a relatively high linear speed, so that during the operation of the cutting platform of the present invention, the straw can run quickly in the straw-clamping and conveying channel to avoid straw congestion and blockage; at the same time, the straw-clamping chains of each part of the straw-clamping and conveying component, including the left and right auxiliary straw-clamping chains 18, 35, and the left and right front straw-clamping chains 24, 30, have relatively low and mutually identical linear speeds, so as to avoid excessive impact between the straw and the straw-clamping and conveying chains when the straw is dialed in, and ensure that the straw is dialed in smoothly.

[0060] 2. The specific structure of the driving and transmission components of each part of the straw chain of the straw feeding mechanism Figure 2 、 Figure 3 、 Figure 4 As shown in the figure:

[0061] The driving transmission components of the main plowing chain 11 to which the straw clamping and conveying components belong are composed of a power sprocket 3 mounted on the main roller 7 of the ear-picking roller pair, and the large sprockets of the double sprocket 12 mounted on the power input shaft of the rear reverse gear box 41, namely the transmission sprocket 37 and the tensioning sprocket 38. The power sprocket 3 provides driving force for the main plowing chain 11, causing it to rotate in a counterclockwise direction.

[0062] The drive transmission components of the right auxiliary reel chain 35 are composed of the small sprocket in the double sprocket 12, namely the drive sprocket 13, a transmission sprocket 33 mounted on the right auxiliary sprocket frame 34, and a tensioning sprocket 36. The drive chain 11 provides driving force to the drive sprocket 13 through the transmission sprocket 37 in the double sprocket 12, thereby ensuring that the right auxiliary reel chain 35 runs in the same direction as the main reel chain 11 and at a lower linear speed than the main reel chain 11.

[0063] The drive transmission components of the left reel chain 18 consist of a drive sprocket 14 mounted on the power take-off shaft of the rear reversing gearbox 41, a transmission sprocket 20 mounted on the end of a sprocket support 19 on the left reel sprocket frame 17, and a tensioning sprocket 15 mounted on the frame. The drive sprocket 14 is driven by the main reel chain 11 through the transmission sprocket 37 in the duplex sprocket 12 and the power take-off shaft of the rear reversing gearbox 41. This ensures that the left reel chain 18 and the right reel chain 35 operate in opposite directions and at the same linear speed.

[0064] The drive transmission components of the left front reel chain 24 consist of a drive sprocket 23, a transmission sprocket 21 mounted on a sprocket support 22, and a tensioning sprocket 26 mounted on a left front sprocket frame 25. The drive sprocket 23 is driven by the main reel chain 11 via the transmission sprocket 37 in the duplex sprockets 12, the rear reverse gearbox 41, the power take-off sprocket 42, the transmission chain 44, the power input sprocket 43, and the power take-off shaft (shown on the left side of the diagram) of the front reverse gearbox 45. This ensures that the left front reel chain 24 and the left auxiliary reel chain 18 run in opposite directions and with the same linearity.

[0065] The drive transmission components of the right front reel chain 30 consist of a drive sprocket 29, a transmission sprocket 32 ​​mounted on a sprocket support 31, and a tensioning sprocket 27 mounted on the right front sprocket frame 28. The drive sprocket 29 is driven by the main reel chain 11 through the transmission sprocket 37 in the duplex sprocket 12, the rear reverse gearbox 41, the power output sprocket 42, the transmission chain 44, the power input sprocket 43, and the power output shaft (on the right side of the diagram) of the front reverse gearbox 45. This ensures that the right front reel chain 30 and the right auxiliary reel chain 35 run in opposite directions and with the same linearity.

[0066] The front and rear reverse gear boxes 45 and 41 are fixedly arranged on the Figure 3 On the header frame 1 shown.

[0067] In practical applications, under the premise that the number of the straw-pulling and feeding mechanisms is equal to the number of the ear-picking rollers, the straw-pulling and feeding mechanism assembly can be composed of 1, 2, 3, 4 or 5 straw-pulling and feeding mechanisms. Figure 2 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 shown.

[0068] In order to achieve better implementation effects of the present invention, the present invention also improves the structure of the existing straw-pulling and ear-picking rollers of the mechanism, and at the same time provides a weeding device at the lower part of the straw clamping channel of the straw-pulling and ear-picking mechanism.

[0069] 1. Improve the existing ear picking rollers

[0070] The first structural form of the improved ear picking roller 6 is as follows: Figures 9 to 12 As shown in the figure, the ear-picking roller pair 6 consists of a main roller 7 and an auxiliary roller 8. The roller body diameter of the main roller 7 is larger than that of the auxiliary roller 8. The main roller is a split roller, composed of an upper roller 46, a power sprocket 3, and a lower roller 49 connected coaxially. The auxiliary roller 8 is a full-body roller. A spiral rib 47 is provided on the lower roller surface of the upper roller 46. A plurality of protrusions 48 are provided on the roller surface of the upper roller at the location of the spiral rib. A plurality of linear ribs are provided on the roller surface of the upper roller above the upper end of the spiral rib at intervals along the circumference of the roller. The roller surface of the lower roller 49 is provided with a plurality of linear ribs 50 at intervals along the entire longitudinal length of the roller and at intervals along the circumference of the roller. The roller surface of the auxiliary roller 8 is provided with a plurality of linear ribs 51 at intervals along the entire longitudinal length of the roller and at intervals along the circumference of the roller.

[0071] The second structural form of the improved ear picking roller 6 is as follows Figures 13 to 15 As shown in the figure, the ear-picking roller pair consists of a main roller 7 and an auxiliary roller 8. The main roller has a larger diameter than the auxiliary roller. The main roller 7 is a split roller, consisting of an upper roller 52, a power sprocket 3, and a lower roller 53 coaxially connected. The auxiliary roller 8 is a full-body roller. The lower surface of the upper roller 52 is provided with a spiral rib 47. A plurality of protrusions 48 are formed on the surface of the upper roller 52, the surface of the lower roller 53, and the surface of the auxiliary roller 8, outside the contact surface between the spiral rib and the upper roller, to form a textured surface.

[0072] The protrusions are composed of short linear protrusions or dot-shaped protrusions. The cross-sectional shape of the short linear protrusions can be any shape. The protrusions are manufactured by welding.

[0073] The spiral ribs are made as follows: a steel bar material with a length of 1.5-2M is taken, and the steel bar is spirally wound upward along the lower end of the roller body of the upper roller 46 or 52 to form a spiral shape with a pitch of 3-10cm. The steel bar is then welded to the upper roller surface of the main roller to obtain the spiral ribs.

[0074] The above-mentioned linear convex ribs are all round steel bars, which are connected to the roller bodies of the upper and lower rollers of the main roller and the roller body of the auxiliary roller by welding.

[0075] Of course, the main roller and the auxiliary roller of the ear picking roller pair of the present invention can also be made by a casting method.

[0076] 2. A weeding device is provided at the lower front end of the straw clamping channel of the straw clamping mechanism.

[0077] In the fields where corn is grown, it is inevitable that some weeds will grow. When the cutting platform is in operation, some weeds and fallen leaves will flow into the straw confluence port B of the straw feeding part together with the corn stalks. If these weeds and fallen leaves are not cleaned up in time, they will gather at the front end intersection C of the straw clamping channel after passing through the straw confluence port, causing the front end intersection C of the straw clamping channel to be blocked, thereby hindering the normal operation of the cutting platform and even causing equipment failure. In order to clean the weeds and ensure the smooth operation of the cutting platform of the present invention, the present invention provides a weeding device on the left and right sides of the lower part of the front end intersection C of the straw clamping channel. Figure 3 As shown, each weeding device is composed of a weeding blade 40 and an anti-blocking half panel 39. Among them, the left weeding device is composed of a weeding blade 40 fixedly set on the side frame and a power output shaft fixedly set on the left side of the rear reverse gear box 41, that is, Figure 3 The drive sprocket 14 shown is mounted on the shaft of the anti-blocking half panel 39; the right weeding device is composed of a weeding knife 40 fixedly mounted on the side frame and a power input shaft fixedly mounted on the right side of the rear reverse gear box 41, that is, Figure 3 The double sprocket 12 is mounted on a shaft and comprises a blocking half-panel 39, which maintains a set gap between the blocking half-panel and the weeding blade of each weeding device. The set gap refers to the gap between the imaginary cylindrical surface formed by the non-fixed side of the blocking half-panel and the weeding blade when the blocking half-panel rotates.

[0078] The principle of setting the gap is to ensure that the anti-blocking half panel does not interfere with the weeding blade when it rotates, and to facilitate timely cutting of weeds wrapped around the anti-blocking half panel. The optimal value of the gap is 0.5-1.5mm .

[0079] When the cutting platform is operating, the anti-blocking half panel 39 located on the left side of the straw clamping channel will rotate at high speed in the clockwise direction together with the power output shaft on the left side of the rear reverse gear box, and the anti-blocking half panel 39 on the right side will rotate at high speed in the counterclockwise direction together with the power input shaft on the right side of the rear reverse gear box, thereby throwing most of the weeds and fallen leaves brought in by the corn stalks away from the front end intersection C of the straw clamping channel. A small amount of weeds entangled on the anti-blocking half panel will be cut off by the weeding knife when the anti-blocking half panel rotates to the position of the weeding knife 40, and will be thrown away from the front end intersection C of the straw clamping channel by the anti-blocking half panel, thereby preventing weeds from gathering here and ensuring the smooth operation of the cutting platform.

[0080] When assembling the cutting platform of the present invention, the ear-picking rollers 6 of the stalk-pulling and ear-picking mechanism are both upright at the rear end of the cutting platform frame and are arranged at equal intervals along the transverse direction of the cutting platform; the straw shearing mechanism is arranged at the front and lower part of the cutting platform frame; the ear conveying augers are arranged on the cutting platform frame between the straw shearing mechanism and the stalk-pulling and ear-picking mechanism; the straw-pulling and ear-picking mechanism assembly is fixedly arranged on the cutting platform frame and is located in front of the stalk-pulling and ear-picking mechanism; the rear end intersection of the straw clamping channel of each straw-pulling and ear-picking mechanism is connected with a pair of matching ear-picking rollers 6, and its main straw-pulling chain is connected to the power sprocket 3 provided on the main roller 7 of the ear-picking roller; the straw-dipping components of each straw-dipping and ear-picking mechanism are all arranged at equal intervals along the transverse direction of the cutting platform, and its straw confluence B is connected with the front end intersection C of the straw clamping channel, so that the distance between the straw outlets A1 and A2 of the adjacent two single-row straw-dipping components of each adjacent straw-dipping component is equal to the corn row spacing.

[0081] It should be noted that the specific implementations given above are only examples for realizing the cutting platform of the present invention, and do not exclude other specific structural forms for realizing the cutting platform of the present invention.

[0082] For example, in actual application, the drive method of each of the rice-pulling chains of the rice-pulling clamping mechanism can also be implemented as follows: the drive sprocket 13 of the right rice-pulling chain 35 is still driven by the main rice-pulling chain 11 through the transmission sprocket 37 of the double sprocket 12; while the drive sprocket 14 of the left rice-pulling chain 18 is driven by the power transmission component between the power output end of the harvester and the drive sprocket; the drive sprockets 23 and 29 of the left and right front rice-pulling chains are also driven by the power transmission component between the power output end of the harvester and the drive sprockets; and the rotational linear speed of the drive sprockets of each rice-pulling chain is made the same. Of course, in this case, the front and rear reverse gear boxes 41 and 45, as well as the transmission components arranged therebetween, namely the power output sprocket 42, the power input sprocket 43, and the transmission chain 44, should be eliminated.

[0083] For example, in the above specific embodiment of the present invention, the docking mode of the rear end of the straw feeding component and the front end of the straw clamping component constituting the straw plowing and clamping mechanism is as follows: Figure 1As shown, the straw-pushing component overlaps the front-end upper surface of the straw clamping and delivering component through the lower rear end thereof, so that the straw-pushing component is located above the straw clamping and delivering component; at the same time, the small sprocket of the double sprocket 12, that is, the driving sprocket 13 of the right auxiliary reed-pulling chain 35, is located above the large sprocket of the double sprocket, that is, the transmission sprocket 37 of the main reed-pulling chain 11. However, in actual application, the straw-pushing component may also overlap the front-end lower surface of the straw clamping and delivering component through the upper rear end thereof, so that the straw-pushing component is located below the straw clamping and delivering component; at the same time, the small sprocket of the double sprocket 12, that is, the driving sprocket 13 of the right auxiliary reed-pulling chain 35, is located below the large sprocket of the double sprocket, that is, the transmission sprocket 37 of the main reed-pulling chain 11.

[0084] For example, in the above-mentioned specific embodiment of the present invention, in order to make the main straw-clamping and conveying component's straw-pushing chain have a relatively high linear speed, while making the straw-pushing chain of each component have a relatively low linear speed, the present invention makes the double sprocket 12 comprise a large sprocket and a small sprocket. However, in actual application, when the double sprocket is comprised of two identical sprockets, so that the linear speed of the main straw-clamping and conveying component of the present invention is the same as the linear speed of the other straw-pushing chains 35, 18, 24, 30 of the straw-pushing component, the present invention is also permitted.

[0085] For another example, in actual applications, while ensuring that the right auxiliary reel chain 35, the left auxiliary reel chain 18, the left front reel chain 24, and the right front reel chain 30 have the same operating linear speed, the transmission component composed of the power output sprocket 42, the transmission chain 44 and the power input sprocket 43 arranged between the front and rear reverse gear boxes 45 and 41 can also be constructed as follows: the power output sprocket 42 and the power input sprocket 43 are respectively replaced by the power output bevel gear and the power input bevel gear, and the transmission chain 44 is replaced by a transverse transmission shaft and a transmission bevel gear installed at each end thereof, and the two transmission bevel gears are respectively meshed with the power output bevel gear and the power input bevel gear.

[0086] There are many specific structural forms that can realize the cutting platform of the present invention, which are not difficult to imagine for those skilled in the art, so they will not be described one by one here.

Claims

1. A cutting platform for a vertical corn harvester, comprising a pair of ear-picking rollers, a straw-pulling and feeding mechanism consisting of a straw-pulling and feeding component and a straw-feeding component, wherein the straw-pulling and feeding component comprises a straw-pulling and feeding channel, and the straw-feeding component comprises left and right auxiliary chain clamps and a straw confluence formed therebetween, characterized in that A "V"-shaped straw merging guide rail with an open front end is provided between the rear bodies of the left and right auxiliary chain clamps, and left and right straw merging channels connected to the straw confluence port are formed between the left and right auxiliary chain clamps and the inner side surfaces of the left and right auxiliary chain clamps; left and right front chain clamps, left and right front plowing chains and their driving transmission components are provided at the front of the straw merging guide rail, and left and right single-row straw dialing components are respectively formed between the relative chain segments of the left auxiliary chain and the left front plowing chain, and between the relative chain segments of the right auxiliary chain and the right front plowing chain, the straw outlets of the left and right single-row straw dialing components are connected to the straw merging channel on the same side thereof, and the distance between the two single-row straw dialing components is equal to the corn row spacing.

2. A vertical corn harvester header according to claim 1, characterized in that The ear picking roller pair is composed of "equal diameter ear picking roller pair".

3. The vertical corn harvester header according to claim 1, characterized in that The ear picking roller pair is composed of a large and small roller ear picking roller pair.

4. The vertical corn harvester header according to claim 1, characterized in that The ear-picking roller pair consists of a main roller and an auxiliary roller, the roller body diameter of the main roller is larger than the roller body diameter of the auxiliary roller; the main roller is a split roller, which is formed by coaxially connecting an upper roller, a power sprocket, and a lower roller; the auxiliary roller is a full-body roller; a spiral rib is provided on the lower roller body surface of the upper roller, and a plurality of protrusions are provided on the roller body surface of the upper roller at the position where the spiral rib is located, and a plurality of straight ribs are provided on the roller body surface of the upper roller at the upper end of the spiral rib, the roller body surface of the lower roller, and the roller body surface of the auxiliary roller along the entire longitudinal length of the roller body and distributed along the circumference of the roller body.

5. The vertical corn harvester header according to claim 1, characterized in that The ear-picking roller pair consists of a main roller and an auxiliary roller, the roller body diameter of the main roller is larger than the roller body diameter of the auxiliary roller; the main roller is a split roller, which is formed by coaxially connecting an upper roller, a power sprocket, and a lower roller; the auxiliary roller is a full-body roller; spiral ribs are provided on the surface of the lower roller body of the upper roller, and a number of protrusions are made on the roller body surface of the upper roller, the roller body surface of the lower roller, and the roller body surface of the auxiliary roller outside the contact surface of the spiral ribs with the lower roller body, so as to form a hemp pattern surface.

6. A vertical corn harvester header according to any one of claims 1 to 5, characterized in that A weeding device is provided on each of the left and right sides of the lower front end of the weeding and feeding channel, the left weeding device consists of a weeding knife fixedly arranged on the side frame and an anti-blocking half panel fixedly arranged on the power output shaft located on the left side of the rear reverse gear box; the right weeding device consists of a weeding knife fixedly arranged on the side frame and an anti-blocking half panel fixedly arranged on the power input shaft located on the rear reverse gear box; and a set gap is maintained between the anti-blocking half panel of each weeding device and the weeding knife.

7. The header of a vertical corn harvester according to claim 6, characterized in that The number of the ear-picking roller pairs is at least one, and the number of the straw-pulling and clamping mechanisms is the same as the number of the ear-picking roller pairs.

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