Header of vertical corn harvester

Abstract

The invention discloses a header of a vertical corn harvester, which comprises a pair of ear picking rollers and a seedling pulling clamping and conveying mechanism consisting of a straw clamping and conveying component and a straw pulling-in component, and is characterized in that the straw pulling-in component consists of two single-row straw pulling-in components; 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 corn harvester header has the following advantages that in one-way operation of the header of the corn harvester, the number of rows of harvested corn is twice that of rows of harvested corn 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 invention relates to a crop harvesting machine, more specifically to a cutting platform of a vertical corn harvester. Background Art

[0002] The existing vertical corn harvester is mainly composed of a frame, a power system, an ear box, a header, etc. Among them, the header, as the core operating component of the corn harvester, is responsible for the important tasks of harvesting corn stalks and corn ears. The header is mainly composed of a frame, a stalk shearing mechanism, an ear conveying auger, a stalk pulling and ear picking mechanism, and a straw pulling and clamping mechanism.

[0003] The stalk pulling and ear picking mechanism is composed of multiple pairs of ear picking rollers and their driving transmission components. Each pair of ear picking rollers is composed of a main roller and an auxiliary roller, and the gap between the two constitutes its straw biting port. The function of the straw biting port is to bite in and send out the straw, and pick off the corn ears at the same time. There are two main structural forms of existing ear picking rollers: one is called "equal diameter ear picking rollers". The roller body diameters of the main and auxiliary rollers of this ear picking roller pair are the same; the main roller is a split roller, and is coaxially connected by an upper roller, a power sprocket and a lower roller distributed from top to bottom; the auxiliary roller is composed of a full-body roller; on the roller body surface of the upper and lower rollers of the main roller, and on the roller body surface of the auxiliary roller, a number of convex ribs are arranged along the entire axial length of the roller body and distributed along the circumferential spacing of the roller body, and the convex ribs are composed of straight steel bars with arbitrary cross-sectional shapes. The other is called "large and small roller ear picking rollers". The roller body diameter of the main roller of this pair of ear picking rollers is larger than that 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; on the roller body surface of the lower roller of the main roller and the roller body surface of the auxiliary roller, a plurality of linear convex ribs are arranged along the entire axial length of the roller body and distributed along the circumferential spacing of the roller body; on the roller body surface of the upper roller of the main roller, a plurality of convex ribs are arranged along the entire axial length of the roller body and distributed along the circumferential spacing, and the upper part of the convex rib is linear, 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 end of the main and auxiliary rollers of the mechanism.

[0005] The straw-pulling and clamping mechanism assembly contains at least one straw-pulling and clamping mechanism. The straw-pulling and clamping mechanism mostly adopts a "stalk-pulling chain + straw-pulling chain" structure, that is, its straw-pulling and straw-clamping actuator components are both straw-pulling chains. The straw-pulling chain is composed of a chain and a plurality of straw-pulling fingers, that is, raised components arranged on the chain at intervals. The straw-pulling and clamping mechanism consists of a straw-clamping and conveying component and a straw-pulling component.

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

[0007] The task of the straw clamping and feeding component is to convey the ear-bearing corn straw fed by the straw feeding component to the paired ear-picking rollers for ear picking, and then send out the straw.

[0008] The straw feeding component is composed of a single-row straw feeding component, which refers to a component that can only perform straw feeding operations on one row of corn. This component consists of left and right auxiliary chain clamping frames, and left and right auxiliary reel chains arranged on each auxiliary chain clamping frame, and their driving transmission devices and tensioning devices. 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 forms its straw confluence port.

[0009] The task of the straw feeding component is to feed the ear-bearing corn straw cut by the straw cutting mechanism into the front道口 of the straw clamping and feeding channel.

[0010] The main reel chain is driven by the power sprocket 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 reel clamping and feeding mechanism.

[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 cutting 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 cutting mechanism and the pull-rod ear-picking mechanism, and the reel clamping and feeding 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 feeding channel of each reel clamping and feeding mechanism is对接 with the straw confluence port of the paired straw feeding component, and its rear道口 is对接 with the straw biting port of a paired ear-picking roller; each straw feeding 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 feeding component, that is, the single-row corn feeding component, is equal to the corn row spacing.

[0013] The shortcomings of the existing header: Due to the structural arrangement of the functional mechanisms of the corn harvester, the width of the header cannot be increased at will, so the number of ear-picking rollers can only reach 5 pairs at most. Since each straw-picking and clamping mechanism needs to be equipped with a pair of ear-picking rollers, and each straw-picking and clamping mechanism is only equipped with a single-row straw-pushing component, the header can only harvest 5 rows of corn at most in a single operation, which inevitably leads to the problem of small number of harvested corn rows and low operation efficiency. Summary of the invention

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

[0015] The object of the present invention is achieved in this way. It includes a pair of ear picking rollers, a straw-picking clamping and conveying mechanism composed of a straw clamping and conveying component and a straw pushing-in component. The straw clamping and conveying component includes a straw clamping and conveying channel, and the straw pushing-in component includes a left and a right auxiliary chain clamping frame and a straw confluence formed therebetween. The present invention is characterized in that a "V"-shaped straw confluence guide rail with an open front end is arranged between the rear bodies of the left and right auxiliary chain clamping frames, and a "V"-shaped straw confluence guide rail with an open front end is formed between the inner side surfaces of the left and right auxiliary chain clamping frames to form a confluence connected to the straw confluence. The invention relates to a left and right straw merging channel; the front part of the straw merging guide rail is provided with left and right front chain clamps, left and right front reed-pulling chains and their driving transmission parts, and the left and right single-row straw-pulling components are respectively formed between the relative chain segments of the left auxiliary reed-pulling chain and the left front reed-pulling chain, and between the relative chain segments of the right auxiliary reed-pulling chain and the right front reed-pulling chain, the straw outlets of the left and right single-row straw-pulling components are connected with the straw merging channel on the same side thereof, and the distance between the two single-row straw-pulling components is equal to the corn row spacing.

[0016] The pair of ear picking rollers is composed of a pair of equal-diameter ear picking rollers.

[0017] The ear picking roller pair is composed of a "large and small roller ear picking roller pair".

[0018] 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 arranged on the lower roller body surface of the upper roller, and a plurality of protrusions are arranged 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 arranged on the roller body surface of the upper roller at the upper end of the spiral rib, on the roller body surface of the lower roller and on 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.

[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; spiral ribs are arranged on the surface of the lower roller body of the upper roller, and a number of protrusions are formed 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 between the spiral ribs and the lower roller body, so as to form a hemp-patterned surface.

[0020] A weeding device is respectively arranged on the left and right sides of the lower front end of the straw clamping and conveying 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.

[0021] The number of the ear-picking roller pair is at least one, and the number of the straw-moving and clamping mechanisms is the same as the number of the ear-picking roller pair.

[0022] After the implementation of the present invention, 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

[0023] Figure 1 The overall structural diagram of the cutting platform of the present invention is

[0024] Figure 2 This is a schematic diagram of the first structural form of the straw-pulling and clamping mechanism of the present invention.

[0025] Figure 3 This is a schematic diagram of the transmission connection relationship of the driving sprockets of each part of the weeding chain of the present invention and the structural form of the weeding device

[0026] Figure 4 This is a schematic diagram of the driving transmission system structure of the straw-plowing and clamping mechanism of the present invention.

[0027] Figure 5 This is a schematic diagram of the second structural form of the straw-plowing and clamping mechanism assembly of the present invention.

[0028] Figure 6 This is a schematic diagram of the third structural form of the straw-plowing and clamping mechanism assembly of the present invention.

[0029] Figure 7This is a schematic diagram of the fourth structural form of the straw-plowing and clamping mechanism assembly of the present invention.

[0030] Figure 8 This is a schematic diagram of the fifth structural form of the straw-plowing and clamping mechanism assembly of the present invention.

[0031] Fig. 9 This is a schematic diagram of a structural form of the ear picking roller of the present invention.

[0032] Fig.10 yes Fig. 9 AA section of the upper roll of the middle main roll

[0033] Fig.11 yes Fig. 9 BB section of the lower roll of the middle main roll

[0034] Fig.12 yes Fig. 9 Cross-section of the middle and auxiliary rollers

[0035] Fig.13 This is a schematic diagram of the second structural form of the ear picking roller of the present invention.

[0036] Fig.14 yes Fig.13 Cross-section of the upper roll of the middle main roll

[0037] Fig.15 yes Fig.13 Cross-section of the middle and auxiliary rollers

[0038] The names of the parts in the attached drawings are: 1-frame, 2-stalk pulling and ear picking mechanism, 3-power sprocket, 4-grain-pulling and clamping mechanism assembly, 5-straw shearing mechanism, 6-grain-pulling rollers, 7-main rollers, 8-auxiliary rollers, 9-straw clamping and feeding guide rails, 10-main chain clamping frame, 11-main grain-pulling chain, 12-double sprockets, 13-driving sprockets, 14-driving sprockets, 15-tensioning sprockets, 16-straw converging guide rails, 17-left auxiliary sprocket frame, 18-left auxiliary grain-pulling chain, 19-sprocket support, 20-drive sprocket, 21-drive sprocket, 22-sprocket support, 23-drive sprocket, 24-left front grain-pulling chain, 25-left front chain clamping frame, 26-tensioning sprocket, 27-tensioning sprocket, Tightening sprocket, 28-right front chain clamp, 29-driving sprocket, 30-right front weeding chain, 31-sprocket support, 32-transmission sprocket, 33-transmission sprocket, 34-right auxiliary chain clamp, 35-right auxiliary weeding chain, 36-tensioning sprocket, 37-transmission sprocket, 38-tensioning sprocket, 39-anti-blocking half panel, 40-weeding knife, 41-rear reverse gear box, 42-power output sprocket, 43-power input sprocket, 44-transmission chain, 45-front reverse gear box, 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

[0039] The main similarities between the header of the present invention and the prior art are:

[0040] Depend on Figure 1 It can be seen that the harvesting platform of the present invention includes the frame 1, the stalk 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 other functional components and their driving transmission components in the prior art. Among them:

[0041] The stalk pulling and ear picking mechanism 2 is composed of at least one pair of ear picking rollers 6. The ear picking rollers are composed of a main roller 7 and an auxiliary roller 8. The main roller is a split roller, which is composed of an upper roller, a power sprocket 3 and a lower roller; the auxiliary roller is composed of a full-body roller. The ear picking rollers can be "large and small roller ear picking rollers" in the prior art, or "equal diameter ear picking rollers" in the prior art.

[0042] In practical applications, the number of ear picking rollers is the same as the number of the straw-pulling and pinching mechanisms.

[0043] Each of the straw clamping and conveying mechanisms in the straw clamping and conveying mechanism assembly is composed of a straw feeding component and a straw clamping and conveying component. The structure of the straw clamping and conveying component is exactly the same as that of the prior art, and is mainly composed of a straw clamping and conveying guide rail 9, a main chain clamping frame 10 and a main straw chain 11 equipped therewith, and a driving transmission component of the main straw chain 11. The straw clamping and conveying guide rail 9 and the main chain clamping frame 10 are arranged in parallel, and the gap formed between the two constitutes a straw clamping and conveying channel.

[0044] The structural forms of the straw shearing mechanism 4 and the ear conveying auger 54 of the present invention, as well as the driving 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.

[0045] The driving transmission principle of each rice-pulling chain of the rice-pulling clamping and conveying mechanism is also the same as that of the prior art, that is, the main rice-pulling chain 11 is driven by the power sprocket 3 arranged on the main roller of the ear-pulling roller pair matched therewith; the remaining rice-pulling chains are all driven by the main rice-pulling chain 11 through the transmission components.

[0046] The main contribution of the present invention to the prior art 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:

[0047] The straw feeding component of the present invention includes the left and right auxiliary chain holders 17, 34 in the prior art and the left and right auxiliary reel chains 18, 35 assembled thereon, as well as the driving and transmission components of the left and right auxiliary reel chains. The inner sides of the left and right auxiliary chain holders, that is, the sides facing each other, form a front end, that is, a "丷" - shaped distribution with a larger opening at the upper end (as shown in the figure) and a smaller opening at the lower end. The lower - end opening constitutes the straw confluence port B of the straw feeding component.

[0048] The creative point of the straw feeding component of the present invention is: between the rear bodies of the left and right auxiliary chain holders 17, 34, that is, the lower bodies shown in the figure, a "V" - shaped straw confluence guide rail 16 with an opening at the front end, that is, the upper - end opening shown in the figure, is provided, and a left and right straw confluence channel communicating with the straw confluence port B is formed between it and the inner sides of the left and right auxiliary chain holders. That is, the left body of the "V" - shaped straw confluence guide rail 16 and the opposite side of the rear body of the left auxiliary chain holder 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 body of the right auxiliary chain holder 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. Figure 2 At the front part of the straw confluence guide rail 16, that is, the upper part shown in the figure, left and right front chain holders 25, 28, left and right front reel chains 24, 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 between the right auxiliary reel chain 35 and the right front reel chain 30 respectively form left and right single - row straw feeding components; the straw outlets A1, A2 of these components, that is, the left and right single - row straw feeding 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 components is equal to the corn row spacing.

[0049] The so - called single - row straw feeding component includes the following meanings:

[0050] 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, a "丷" - shaped distribution with a larger upper - end opening and a smaller lower - end opening (as shown in the figure). 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.

[0051] 2. The straw outlets A1, A2 are respectively communicated with the front - end openings of the straw confluence channels on their same sides;

[0052]

[0053] ​3. During the operation, this component can push the straw into a row of corn.

[0054] In actual production, the above-mentioned merging rail 16, and the left and right front chain clamps 25, 28 are fixedly arranged on the frame of the header through connecting components.

[0055] When the straw-pushing and clamping mechanism of the present invention is assembled, the straw clamping and conveying component thereof is connected with the straw confluence port B of the straw-pushing and conveying component through the front end opening C of the straw clamping and conveying channel thereof.

[0056] The design principles and specific construction methods of the driving transmission components of the above-mentioned reed-pulling chains of each part of the reed-pulling clamping and conveying mechanism are as follows:

[0057] 1. Design principles for the driving and transmission components of the reed chain of each part of the reed clamping and feeding mechanism

[0058] In order to make the harvesting platform of the present invention achieve ideal operating results, the present invention is the same as the existing more advanced technologies. Under the premise of ensuring that the running directions of the straw-pulling chains of each part of the straw-pulling and clamping mechanism meet the operating requirements, the main straw-pulling chain 11 of the straw clamping and conveying component has a relatively high linear speed, so that during the operation of the harvesting 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-pulling chains of each part of the straw-pulling component, including the left and right auxiliary straw-pulling chains 18, 35, and the left and right front straw-pulling chains 24, 30, have relatively low and mutually identical linear speeds, so as to avoid excessive impact between the straw and the straw-pulling chain when the straw is pulled in, thereby ensuring smooth pulling of the straw.

[0059] 2. The specific structural form of the driving and transmission components of the reed chain of each part of the reed clamping and feeding mechanism Figure 2 , Figure 3 , Figure 4 As shown, it can be seen from the figure:

[0060] The driving transmission component of the main reed chain 11 to which the straw clamping and conveying component belongs is composed of a power sprocket 3 arranged on the main roller 7 of the ear picking roller matched therewith, and a large sprocket in the double sprocket 12 arranged on the power input shaft of the rear reverse gear box 41, namely, a driving sprocket 37 and a tensioning sprocket 38. The main reed chain 11 is provided with driving force by the power sprocket 3 and runs in a counterclockwise direction.

[0061] The driving transmission component of the right auxiliary reel chain 35 is composed of a small sprocket in the double sprocket 12, namely, a driving sprocket 13, a transmission sprocket 33 arranged on the right auxiliary sprocket frame 34, and a tensioning sprocket 36. The driving sprocket 13 is provided with a driving force by the active chain 11 through the transmission sprocket 37 in the double sprocket 12, so that the right auxiliary reel chain 35 and the main reel chain 11 run in the same direction, and the running linear speed thereof is lower than the running linear speed of the main reel chain 11.

[0062] The driving transmission component of the left reel chain 18 is composed of a driving sprocket 14 arranged on the power output shaft of the rear reverse gear box 41, a transmission sprocket 20 arranged at the end of the sprocket support 19 on the left reel sprocket frame 17, and a tensioning sprocket 15 arranged on the frame. The driving sprocket 14 is provided with driving force by the main reel chain 11 through the transmission sprocket 37 in the double sprocket 12 and the power output shaft of the rear reverse gear box 41, and the left reel chain 18 and the right reel chain 35 run in opposite directions and at the same linear speed.

[0063] The driving transmission component of the left front reel chain 24 is composed of a driving sprocket 23, a transmission sprocket 21 arranged on a sprocket support 22, and a tensioning sprocket 26 arranged on a left front sprocket frame 25. The driving sprocket 23 is provided with driving force by the main reel chain 11 through the transmission sprocket 37 in the double sprocket 12, the rear reverse gear box 41, the power output sprocket 42, the transmission chain 44, the power input sprocket 43 and the power output shaft of the front reverse gear box 45 on the left side of the figure, and the left front reel chain 24 and the left auxiliary reel chain 18 have opposite running directions and the same running linearity.

[0064] The driving transmission component of the right front reel chain 30 is composed of a driving sprocket 29, a transmission sprocket 32 ​​arranged on a sprocket support 31, and a tensioning sprocket 27 arranged on a right front sprocket frame 28. The driving sprocket 29 is provided with driving force by the main reel chain 11 through the transmission sprocket 37 in the double sprocket 12, the rear reverse gear box 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 front reverse gear box 45, and the right front reel chain 30 and the right auxiliary reel chain 35 have opposite running directions and the same running linearity.

[0065] The front and rear reverse gear boxes 45 and 41 are fixedly arranged on Figure 3 On the header frame 1 shown.

[0066] In practical applications, under the premise that the number of the reed-pulling and clamping mechanisms is equal to the number of the ear-picking rollers, the reed-pulling and clamping mechanism assembly can be composed of 1, 2, 3, 4 or 5 reed-pulling and clamping mechanisms. Figure 2 , Figure 5 , Figure 6 , Figure 7 , Figure 8 shown.

[0067] In order to achieve better implementation effects of the present invention, the present invention also improves the structure of the existing ear picking rollers of the straw pulling and ear picking mechanism, and at the same time sets a weeding device at the lower part of the straw clamping channel of the straw pulling and ear clamping mechanism.

[0068] 1. Improve the existing ear picking rollers

[0069] 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 is composed of a main roller 7 and an auxiliary roller 8, the roller body diameter of the main roller 7 is larger than the roller body diameter of the auxiliary roller 8; the main roller is a split roller, which is formed by coaxially connecting an upper roller 46, a power sprocket 3, and a lower roller 49; the auxiliary roller 8 is a full-body roller; a spiral rib 47 is arranged on the lower roller body surface of the upper roller 46, a plurality of protrusions 48 are arranged on the roller body surface of the upper roller at the position where the spiral rib is located, and a plurality of linear ribs distributed along the circumferential spacing of the roller body are arranged on the roller body surface of the upper roller at the upper end of the spiral rib; a plurality of linear ribs 50 are arranged on the roller body surface of the lower roller 49 along the entire longitudinal length of the roller body and along the circumferential spacing of the roller body, and a plurality of linear ribs 51 are arranged on the roller body surface of the auxiliary roller 8 along the entire longitudinal length of the roller body and along the circumference of the roller body.

[0070] 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 is composed of a main roller 7 and an auxiliary roller 8, the roller body diameter of the main roller is larger than the roller body diameter of the auxiliary roller; the main roller 7 is a split roller, which is formed by coaxially connecting an upper roller 52, a power sprocket 3, and a lower roller 53; the auxiliary roller 8 is a full-body roller; a spiral rib 47 is provided on the lower roller body surface of the upper roller 52, and a plurality of protrusions 48 are formed on the roller body surface of the upper roller 52, the roller body surface of the lower roller 53, and the roller body surface of the auxiliary roller 8 outside the contact surface between the spiral rib and the upper roller, so as to form a hemp pattern surface.

[0071] The protrusions are composed of short-line protrusions or dot-shaped protrusions. The cross-sectional shape of the short-line protrusions is any shape. The manufacturing method of the protrusions is a welding method.

[0072] The spiral convex rib is made as follows: take a steel bar material with a length of 1.5-2M, spiral it upward along the lower end of the roller body of the upper roller 46 or 52 to form a spiral shape, and make its pitch 3-10cm, and weld the steel bar to the upper roller surface of the matching main roller to obtain the spiral convex rib.

[0073] 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.

[0074] 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.

[0075] 2. A weeding device is provided at the lower front end of the straw clamping channel of the straw clamping mechanism.

[0076] In a field where corn is planted, it is inevitable that some weeds will grow. When the cutter 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 cutter and even causing equipment failure. In order to clean up the weeds and ensure the smooth operation of the cutter of the present invention, a weeding device is respectively arranged 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 a blocking half panel 39. Among them, the left weeding device is composed of a weeding blade 40 fixedly arranged on the side frame and a power output shaft fixedly arranged on the left side of the rear reverse gear box 41, that is, Figure 3 The drive sprocket 14 shown in the figure is mounted on the shaft to prevent blocking the half panel 39; the right weeding device is composed of a weeding knife 40 fixedly arranged on the side frame and a power input shaft fixedly arranged on the right side of the rear reverse gear box 41, that is, Figure 3 The double sprocket 12 shown in the figure is mounted on the shaft to prevent the half panel 39 from blocking, and the half panel of each weeding device is set to maintain a set gap with the weeding blade. The set gap refers to the gap between the imaginary cylindrical surface formed by the non-fixed side of the half panel when the half panel rotates and the weeding blade.

[0077] The setting principle of the set gap is to ensure that the anti-blocking half panel and the weeding knife used with it do not interfere with each other during the rotation operation, and the weeds entangled on the anti-blocking half panel can be cut off in time.

[0078] The optimum value for setting the gap is 0.5-1.5mm .

[0079] When the harvesting 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, and a small amount of weeds entangled on the anti-blocking half panel will be cut off by the weeding knife 40 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 the weeds from gathering here and ensuring the smooth operation of the harvesting 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 all erected at the rear end of the cutting platform frame and are arranged at equal intervals along the horizontal direction of the cutting platform; the straw shearing mechanism is arranged at the lower front part of the cutting platform frame; the ear conveying auger is arranged on the cutting platform frame between the straw shearing mechanism and the stalk-pulling and ear-picking mechanism; the straw-pulling and clamping mechanism assembly is fixedly arranged on the cutting platform frame and is located at the front part of the stalk-pulling and ear-picking mechanism; the rear end road opening of the straw clamping channel of each straw-pulling and clamping mechanism is connected with a pair of ear-picking rollers 6 matched therewith, and its main straw-pulling chain is connected to the power sprocket 3 arranged on the main roller 7 of the ear-picking roller; the straw-pulling and clamping components of each straw-pulling and clamping mechanism are all arranged at equal intervals along the horizontal direction of the cutting platform, and the straw confluence B is connected with the front end road opening C of the straw clamping channel, so that the distance between the straw outlets A1 and A2 of two adjacent single-row straw-pulling components of each adjacent straw-pulling and clamping mechanism is equal to the corn row spacing.

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

[0082] For example, in practical applications, the driving mode of each of the rice-pulling chains of the rice-pulling clamping mechanism can also be implemented as follows: the driving sprocket 13 of the right rice-pulling chain 35 is still driven by the main rice-pulling chain 11 through the transmission sprocket 37 in the double sprocket 12; and the driving sprocket 14 of the left rice-pulling chain 18 is driven by the power transmission component between the power output end of the harvester of the present invention and the driving sprocket; the driving 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 of the present invention and the driving sprockets; and the rotational linear speeds of the driving sprockets of each rice-pulling chain are 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-mentioned 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 feeding mechanism is as follows: Figure 1As shown, the straw inserting component overlaps the front end upper surface of the straw clamping and conveying component through the lower rear end thereof, so that the straw inserting component is located at the upper part of the straw clamping and conveying component; at the same time, the small sprocket in the double sprocket 12, that is, the driving sprocket 13 of the right auxiliary reed chain 35 is located at the upper part of the large sprocket of the double sprocket, that is, the transmission sprocket 37 of the main reed chain 11. However, in actual application, the straw inserting component may also overlap the front end lower surface of the straw clamping and conveying component through the upper rear end thereof, so that the straw inserting component is located at the lower part of the straw clamping and conveying component; at the same time, the small sprocket in the double sprocket 12, that is, the driving sprocket 13 of the right auxiliary reed chain 35 is located at the lower part of the large sprocket of the double sprocket, that is, the transmission sprocket 37 of the main reed chain 11.

[0084] For example, in the above-mentioned specific embodiment of the present invention, in order to make the main reed chain of the straw clamping and conveying component have a relatively high linear speed, and at the same time make the reed chains of the straw inserting component have a relatively low linear speed, the present invention makes the double sprocket 12 consist of a large sprocket and a small sprocket. However, in actual application, when the double sprocket consists of two completely identical sprockets, so that the linear speed of the main reed chain 11 of the straw clamping and conveying component of the present invention is the same as the linear speed of the other reed chains 35, 18, 24, 30 of the straw inserting component, the present invention is also allowed.

[0085] For another example, in actual applications, while ensuring that the right-side reel chain 35, the left-side 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, 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 other 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 table of a vertical corn harvester, comprising a pair of ear-picking rollers, a straw-picking and clamping mechanism consisting of a straw clamping and conveying component and a straw-pushing component, wherein the straw clamping and conveying component comprises a straw clamping and conveying channel, and the straw-pushing component comprises a left and a right chain clamping frame and a straw confluence formed therebetween, characterized in that A "V"-shaped straw merging guide rail with an open front end is arranged between the rear bodies of the left and right auxiliary chain clamps, and a left and right straw merging channel connected to the straw confluence port is 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 plucking chains and their driving transmission components are arranged 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 chain, and between the relative chain segments of the right auxiliary chain and the right front 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 pair of ear picking rollers is composed of "a pair of equal diameter ear picking rollers".

3. A 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 arranged on the lower roller body surface of the upper roller, and a plurality of ribs are arranged 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 arranged on the roller body surface of the upper roller at the upper end of the spiral rib, on the roller body surface of the lower roller and on 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 arranged on the surface of the lower roller body of the upper roller, and a number of protrusions are formed 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 between the spiral ribs and the lower roller body, so as to form a hemp-patterned surface.

6. A vertical corn harvester header according to any one of claims 1 to 5, characterized in that A weeding device is respectively arranged on the left and right sides of the lower front end of the weeding clamping and feeding channel, the left weeding device is composed 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 is composed 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 pair is at least one, and the number of the straw-moving and clamping mechanisms is the same as the number of the ear-picking roller pair.

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