CN215735841U

CN215735841U - Vertical corn harvester header

Info

Publication number: CN215735841U
Application number: CN202121197755.7U
Authority: CN
Inventors: 宋永君
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2022-02-08
Anticipated expiration: 2031-05-25

Abstract

The utility model discloses a header of a vertical corn harvester, which comprises a frame, a stalk pulling and ear picking mechanism assembly, a reel clamping mechanism assembly, an ear conveying mechanism and a power transmission component, wherein the stalk pulling and ear picking mechanism assembly comprises at least two stalk pulling and ear picking mechanisms, and each stalk pulling and ear picking mechanism is matched with one reel clamping mechanism. Compared with the prior art, the utility model has the advantages of good operation quality, high operation efficiency and low manufacturing cost.

Description

Vertical corn harvester header

Technical Field

The utility model relates to a crop harvesting machine, in particular to a header of a vertical corn harvester.

Background

With the continuous improvement of the level of agricultural mechanization, the application of corn harvesters is more and more popular, and particularly, vertical corn harvesters are particularly used. The existing vertical corn harvester mainly comprises a header, an engine, a traveling system, a hydraulic system, an elevator, a cluster box and the like. The header is a core component of the corn harvester, and has the main functions of harvesting corn straws and harvesting corn ears. The existing header mainly comprises a frame, and a shearing mechanism, a reel pinch mechanism assembly, a stalk pulling and ear picking mechanism assembly, an ear conveying mechanism and a power transmission component which are arranged on the frame. The stalk pulling and ear picking mechanism assembly at least comprises 2 stalk pulling and ear picking mechanisms with the same structure, each stalk pulling and ear picking mechanism is matched with one reel clamping and conveying mechanism, and the reel clamping and conveying mechanism assembly also comprises reel clamping and conveying mechanisms with the same structure.

The stalk pulling and ear picking mechanism consists of a main roller, an auxiliary roller, and a transmission shaft and a driving gear matched with the main roller and the auxiliary roller. The main roller and the auxiliary roller are vertically hinged on the rack through transmission shafts of the main roller and the auxiliary roller and are distributed left and right; the driving gears are respectively arranged on the transmission shafts of the main roller and the auxiliary roller and are meshed with each other. The main roller and the auxiliary roller are both split rollers, the main roller consists of an upper roller, a power chain wheel and a lower roller, and the auxiliary roller consists of an upper roller and a lower roller. The roller bodies of the upper and lower rollers of the main and auxiliary rollers are composed of a base cylinder and a plurality of equal-height convex ribs manufactured from the cylindrical surface of the base cylinder, the convex ribs are arranged along the axial direction of the roller body where the convex ribs are arranged, and the diameters of the outer containing cylinders of the main and auxiliary rollers are equal. When in operation, the stalk pulling and ear picking mechanism is driven by the power transmission part, and the main roller and the auxiliary roller of the stalk pulling and ear picking mechanism are opposite in rotation direction and same in rotation speed.

The reel pinch mechanism has a plurality of structural forms, such as a structural form of a reel chain and a reel wheel type, a structural form of a reel chain and a reel chain type and the like, and the reel pinch mechanism in any form is formed by combining reel pinch components A, B which are distributed left and right. The typical 'reel chain + reel chain' reel pinch mechanism is composed of: the reel pinch part A consists of a support frame with a fold line shape in overlooking, a reel chain C arranged on a frame body at the front part of a folding point, a chain wheel group matched with the reel chain C and a chain tensioning device; the reel pinch component B consists of a chain clamping frame with a fold line shape in overlooking, reel chains D arranged on a frame body at the front and the rear of a folding point, a matched chain wheel group and a chain tensioning device, wherein the matched chain wheel group comprises a power chain wheel arranged on a main roller of the stalk pulling and ear picking mechanism. The reel chain C and the reel chain D respectively form reel executing components of the reel pinch part A, B and are formed by a complete chain, and reel fingers which are arranged at intervals, namely, the reel fingers are used for pulling corn straws. When the reel pinch mechanism is assembled, reel pinch components A, B are distributed left and right, and the combined overlooking shape of the reel pinch components is similar to a Y shape. A V-shaped opening formed by the support frame and the front body of the break point of the chain clamping frame forms a straw poking inlet of the mechanism, and a gap formed between the support frame and the rear body of the break point of the chain clamping frame which are arranged in parallel at intervals forms a straw clamping and conveying channel of the mechanism.

The typical reel chain + reel wheel type reel pinch mechanism is different from the reel chain + reel chain type reel pinch mechanism in that a reel actuating component of a reel pinch part A is composed of a reel wheel with a plurality of reel radial blades, in other words, the reel wheel replaces the reel chain C in the reel chain + reel chain type reel pinch mechanism, and the reel blades of the reel wheel are meshed with the reel fingers of the reel chain D.

In practical application, the reel chain D of each reel pinch mechanism in the reel chain and reel chain type reel pinch mechanism assembly is driven by the power chain wheel of the pull stem ear picking mechanism matched with the reel chain D, and the reel chain C is driven by the power transmission component, namely the transmission chain from an engine to the driving chain wheel of the power transmission component; the reel chain D in the reel chain and reel wheel type reel pinch mechanism is also driven by the power chain wheel, and the reel wheel is driven by the reel finger of the reel chain D through the blade.

The ear conveying mechanism has various structural forms, such as an auger type ear conveying mechanism, a conveyor type ear conveying mechanism and the like. The auger type fruit cluster conveying mechanism mainly comprises a cluster collecting groove and an auger part, wherein the cluster collecting groove is formed by 1 dustpan-shaped component; the packing auger component consists of 1 large packing auger and a driving shaft, a shaft seat and a driving gear matched with the packing auger. The ear collecting groove is fixed on the frame, and the opening end of the ear collecting groove is positioned at one side of the elevator; the big auger is positioned in the ear collecting groove and is hinged on the frame through two ends of a driving shaft and a matched shaft seat thereof; one end of the driving shaft is provided with a driving gear. The ear conveying mechanism is driven by the power transmission part of the header during operation.

The main problems of the existing header in practical application are poor operation quality, low operation efficiency and high manufacturing cost. The reason is the following aspects: firstly, a stalk pulling and ear picking mechanism has the defects that: firstly, the rotation linear speeds of the main roller and the auxiliary roller of the stalk pulling and ear picking mechanism are not high due to the limitation of the minimum diameter of the power chain wheel and the highest running speed of the reel chain D, so that the stalk pulling and ear picking speed is lower and the operation efficiency is lower. Secondly, under the condition of a certain roll spacing, the radius difference between the main roll and the power chain wheel is small due to the limitation of the maximum diameters of the main roll and the auxiliary roll and the minimum diameter of the power chain wheel, so that when a reel chain D of the reel pinch mechanism bypasses the power chain wheel of the main roll, a reel finger of the reel pinch mechanism inevitably extends out of the surface of the roll body of the main roll, the phenomenon of hanging straws is caused, and the operation quality of the header is reduced. And thirdly, because the convex ribs of the main roller and the auxiliary roller are arranged along the axial direction of the base cylinder, the function of pushing up straws is not realized, so that in the operation process, part of the straws entering between the main roller and the auxiliary roller in a lodging state are inevitably accumulated on the power chain wheel of the main roller, the subsequent straws are pulled in to cause obstruction, and the operation quality and the efficiency of the header are influenced. Fourthly, the main roller and the auxiliary roller are in split structure, and the manufacturing cost of the header is increased. Secondly, the reel pinch mechanism has defects: firstly, for a cutting table provided with a 'reeling chain + reeling chain type' reeling clamping mechanism component, because each reeling chain C in the component needs an independent transmission chain for the power transmission component, the structure is complex, and the manufacturing cost of the cutting table is high; secondly, according to the actual operation requirement, when the reel pinch mechanism dials in the straws, the reel chain should have a relatively low linear velocity, so that the reel chain is beneficial to avoiding overlarge impact between the reel chain and the straws, and the straws are ensured to be dialed stably; when the straws are pinched, the reel chains have relatively high linear speed, so that the straws can quickly run in the pinching and feeding channel, and the phenomenon of crowding and blocking is avoided. However, the reel chain D of the existing reel clamping and conveying mechanism is a complete chain, the speed of each point line is the same during operation, different linear speeds cannot be provided for straw reeling in and clamping and conveying, and only the two linear speeds are considered, so that the cutting table is selected in a compromise way, and the cutting table has lower operation efficiency; and thirdly, the reel chain D is composed of the whole chain, so that the reel chain is quickly abraded and easy to loosen, and the use and maintenance cost of the cutting table is high. Secondly, for the cutting platform provided with the reel chain and reel wheel type reel pinch mechanism assembly, because the reel executing component of each reel pinch component A in the assembly, namely the reel, needs to be driven by the reel finger of the reel chain D through the reel blade, the original rough transmission mode inevitably causes the reel executing component of the reel pinch component A, B, namely the reel chain D and the reel, to generate hard impact collision, thus increasing the abrasion, and further improving the use and maintenance cost of the cutting platform. Thirdly, the defects of the fruit cluster conveying mechanism: firstly, for the 'auger type' ear conveying mechanism, in order to ensure the need of instant conveying of ears, the auger must have a diameter large enough, but because the height of the auger from the ground is limited, the arrangement position of the auger cannot be freely moved downwards, so that the distance between the large auger and the machine body of the seedling shifting clamping mechanism above the large auger is insufficient, thereby causing obstruction to the straw conveying of the seedling shifting clamping mechanism and influencing the operation quality and efficiency of the header. Secondly, the use and maintenance costs of the "belt drive" ear transport mechanism are prohibitive.

Disclosure of Invention

The utility model aims to provide a header of a vertical corn harvester for people so as to solve the problems of poor operation quality, low operation efficiency, high manufacturing cost and the like in the prior art.

The utility model aims to realize the purpose, which comprises a frame, a stalk pulling and ear picking mechanism assembly, a reel clamping mechanism assembly, an ear conveying mechanism and a power transmission component, wherein the stalk pulling and ear picking mechanism assembly comprises at least two stalk pulling and ear picking mechanisms, and each stalk pulling and ear picking mechanism is matched with one reel clamping mechanism.

The large and small roller type stalk pulling and ear picking mechanism comprises a main roller and an auxiliary roller, the diameter of an outer packing cylinder of the main roller is larger than that of an outer packing cylinder of the auxiliary roller, and the rotating linear speeds of the main roller and the auxiliary roller are matched.

The base cylinders of the upper and lower rollers of the auxiliary roller are made into a whole.

The convex ribs of the upper roller and the lower roller of the main roller and the auxiliary roller are arranged along the axial direction of the base cylinder where the main roller and the auxiliary roller are arranged.

The upper and lower roll convex ribs of the auxiliary roll and the lower roll convex rib of the main roll are arranged along the axial direction of the base cylinder where the auxiliary roll and the main roll are arranged; the upper roll convex rib of the main roll is arranged as follows: each convex rib is composed of an upper body and a lower body, the upper body is arranged along the axial direction of the base cylinder where the upper body is located, and the lower body is arranged along the spiral direction and enables the spiral direction to be matched with the turning direction of the main roller.

The upper and lower roll convex ribs of the main roll and the lower roll convex rib of the auxiliary roll are arranged along the axial direction of the base cylinder where the main roll and the auxiliary roll are arranged; the upper roll convex rib of the auxiliary roll is arranged as follows: each convex rib is composed of an upper body and a lower body, the upper body is arranged along the axial direction of the base cylinder where the upper body is located, and the lower body is arranged along the spiral direction and enables the spiral direction to be matched with the turning direction of the main roller.

The section shape of the convex rib is any one of the following shapes:

(1) the section lines of the two side surfaces of each convex rib are isosceles trapezoid waistlines, and the section lines of the top surface are straight lines perpendicular to the symmetry axes of the two waistlines.

(2) The section lines of the two side surfaces of each convex rib are isosceles trapezoid waist lines, and the section lines of the top surface are arc lines.

(3) The section lines of the convex ribs of each part are round lines.

(4) The section lines of the two side surfaces of each convex rib are arc lines, and the section lines of the top surface are arc lines.

(5) The side shapes of the lower roll convex rib of the main roll and the lower roll convex rib of the auxiliary roll are saw-blade-shaped.

The linkage type reel pinch mechanism is composed of reel pinch components A, B, the reel pinch components A contain reel chains C, the reel pinch components B contain fold-line chain holders and reel chains D, the reel chains D are composed of front reel chains and rear reel chains which are respectively arranged on the front and rear frame bodies at the folding points of the chain holders, the rear reel chains are in transmission connection with the power chain wheel, and the rear reel chains are in equal speed reduction transmission connection with the front reel chains and the reel chains C of the other adjacent reel pinch mechanism through duplex speed changing chain wheels with the same gear ratio.

Little auger formula fruit ear conveying mechanism comprises collection ear of grain groove and auger part, auger part contains 2 at least little augers, and this little auger all is located collection ear of grain inslot to articulate through the one end of its drive shaft and the axle bed of its adapted respectively in the frame of collection ear of grain groove back outside portion, form cantilever structure, it is adjacent be in by fixed setting between the little auger collection ear of grain inslot baffle on the bottom separates, the outer tip of the drive shaft of each little auger sets up drive gear respectively.

Compared with the prior art, the utility model has the advantages of good operation quality, high operation efficiency and low manufacturing cost. The reason is the following aspects: the big and small roller type stalk pulling and ear picking mechanism has the beneficial effects that: firstly, because the main roller and the secondary roller of the mechanism are arranged into a large roller and a small roller, the rotating linear speed of the main roller outer containing cylinder can be effectively improved under the condition that the roller spacing and the rotating speed of the main roller and the secondary roller are the same as those of the prior art, and meanwhile, the secondary roller outer containing cylinder has the same linear speed as the main roller outer containing cylinder, so that the straw pulling and ear picking speed of the secondary roller outer containing cylinder can be obviously improved, and the operation efficiency of the header is further improved. Secondly, because the diameter of the main roller base cylinder of the mechanism is larger, under the condition that the diameter of the power chain wheel is the same as that of the prior art, the radius difference between the main roller and the power chain wheel is larger, so that when the reel chain D of the reel pinch mechanism bypasses the power chain wheel of the main roller, the reel fingers can not extend out of the surface of the base cylinder of the main roller any more or the extension amount of the reel fingers is reduced, the phenomenon that the reel fingers hang straws can be avoided or reduced in the operation composition of the header, and the operation quality of the header is improved. And thirdly, as the spiral ribs are arranged on the upper roller of the main roller or the auxiliary roller of the mechanism, the straw entering between the main roller and the auxiliary roller in a lodging state can be pushed upwards in the operation process, the straw is prevented from being accumulated on the power chain wheel, the straw is prevented from being blocked to be pulled in subsequently, and the operation quality and the operation efficiency are further improved. Fourthly, the auxiliary roller adopts an integral structure form, so that the manufacturing cost of the stalk pulling and ear picking mechanism is favorably reduced, and the manufacturing cost of the header is further reduced. The linkage type reel clamping and conveying mechanism has the beneficial effects that: firstly, compared with the cutting table provided with the existing 'reeling chain + reeling chain type' reeling clamping mechanism assembly, in the assembly, except that one reeling chain C at the outermost side needs to be driven by an independent transmission chain provided by the power transmission part, the reeling chains C of other reeling clamping mechanisms are driven by the reeling chain D of the other adjacent reeling clamping mechanism, so that the structure is simple, and the manufacturing cost of the cutting table can be obviously reduced. And secondly, the rear reel chain of the reel pinch mechanism is in equal speed reduction transmission connection with the front reel chain and the reel chain C of the other adjacent reel pinch mechanism through a duplex speed-changing chain wheel, so that the front reel chain and the reel chain C have the optimal relatively slow operating linear speed while the rear reel chain is ensured to have the ideal operating linear speed, further, the reel fingers of the reel chains are prevented from generating excessive impact with the straws in the reel operation, and the straws are ensured to be stably guided into the straw feeding port, thereby improving the operating efficiency and the quality of the header. And thirdly, the reel chain D of the reel pinch mechanism is composed of a front section of chain and a rear section of chain, so that the abrasion and the looseness of the chains can be reduced, and the use and maintenance cost of the cutting table can be reduced. Secondly, compared with the cutting table provided with the existing 'reel chain + reel type' reel clamping mechanism assembly, the reel clamping component A in the reel clamping mechanism assembly is driven by the power transmission component and the reel chain D, namely the reel chain C is driven by the power transmission component and the reel chain D, so that the stable transmission mode remarkably avoids impact collision between the reel execution components of the reel clamping component A, B, namely the reel chain C and the reel chain D, reduces abrasion, and further reduces the use and maintenance cost of the cutting table. Thirdly, the small auger type fruit cluster conveying mechanism brings beneficial effects: firstly, compared with the cutting table provided with the existing belt transmission type fruit cluster conveying mechanism, the cutting table has the advantage of low use and maintenance cost. Secondly, compared with the header provided with the existing ear conveying mechanism with a 'auger type' structure, the auger diameter of the ear conveying mechanism is smaller, so that the distance between the auger and the machine body of the reel pinch mechanism above the auger is increased, the auger can be prevented from blocking straws conveyed by the reel pinch mechanism in the operation process, and the operation quality and efficiency of the header are further improved.

Drawings

FIG. 1 is a schematic view of the structure of the present invention

FIG. 2 is a plan view of FIG. 1

FIG. 3 is a schematic view of the present invention with the cover 6 of FIG. 2 removed

FIG. 4 is a schematic view of a structural form of a stalk pulling and ear picking mechanism

FIG. 5 is a schematic view of a second structure of the stalk pulling and ear picking mechanism

FIG. 6 is a schematic diagram of a third structural form of a stalk pulling and ear picking mechanism

FIG. 7 is a schematic cross-sectional view of two structural forms of main and auxiliary rollers of a stalk pulling and ear picking mechanism

FIG. 8 is a schematic sectional view of the third structural form of the main and auxiliary rollers of the stalk pulling and ear picking mechanism

FIG. 9 is a cross-sectional view of the fourth structural form of the main and auxiliary rollers of the stalk pulling and ear picking mechanism

FIG. 10 is a schematic cross-sectional view of a fifth structural form of the main roller and the auxiliary roller of the stalk pulling and ear picking mechanism

FIG. 11 is the assembly of the reel pinch mechanism and the stalk pulling and ear picking mechanism

FIG. 12 is a schematic view of the structure of the duplex speed changing chain wheel of the reel pinch mechanism

FIG. 13 is a schematic view of the structure of the ear conveying mechanism

FIG. 14 is a sectional view A-A of FIG. 13

The serial number names in the drawings are as follows: 1-machine frame, 2-small auger type fruit ear conveying mechanism, 3-large and small roller type pulling and picking mechanism, 4-shearing mechanism, 5-linkage type reel pinch mechanism, 6-covering member, 7-reel pinch mechanism component, 8-pulling and picking mechanism component, 9-transmission shaft, 10-transmission shaft, 11-base cylinder, 12-convex rib, 13-lower roller, 14-power chain wheel, 15-convex rib, 16-base cylinder, 17-upper roller, 18-main roller, 19-auxiliary roller, 20-driving gear, 21-driving gear, 22-upper roller, 23-convex rib, 24-base cylinder, 25-lower roller, 26-base cylinder, 27-convex rib, 28-base cylinder, 29-supporting frame, 30-chain clamp frame, 31-reversing chain wheel, 32-tension chain wheel, 33-chain tension device, 34-rear reel chain, 35-reel chain, 36-front reel chain, 37-chain tension device, 38-tension chain wheel, 39-duplex speed change chain wheel, 40-transmission chain wheel, 41-reel chain C, 42-driving chain wheel, 43-bevel gear box, 44-power transmission chain, 45-reel pinch component A, 46-reel pinch component B, 47-large chain wheel, 48-small chain wheel, 49-driving chain wheel, 50-support, 51-spike collecting groove, 52-small auger, 53-partition plate, 54-auxiliary roller imaginary base cylinder and 55-main roller imaginary base cylinder.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

It should be noted that the following detailed description is only for the purpose of explanation and is not intended to limit the utility model.

Fig. 1, 2 and 3 show a specific structure form of the utility model. As can be seen from the figure, the utility model comprises a frame 1, and a stalk pulling and ear picking mechanism component 3, a stalk pulling and clamping mechanism component 5, an ear conveying mechanism 2, a shearing mechanism 4 and a covering part 6 which are all of the same name and are arranged on the frame. The stalk pulling and ear picking mechanism assembly 8 comprises 3 stalk pulling and ear picking mechanisms 3, and each stalk pulling and ear picking mechanism is arranged at the rear end part of the rack 1 and is arranged in a straight line along the left-right direction; the reel pinch mechanism assembly 7 comprises 3 reel pinch mechanisms 5, and each reel pinch mechanism is respectively arranged on a front rack of a stalk pulling and ear picking mechanism matched with the reel pinch mechanism; the fruit ear conveying mechanism 2 is positioned on the lower part rack of the reel pinch mechanism and is adjacent to the front part of the stalk pulling and ear picking mechanism; the shearing mechanism 4 is arranged on the frame and is positioned below the front part of the reel pinch mechanism.

It should be noted that in practical application, the number of the stalk pulling and ear picking mechanisms and the number of the reel pinching mechanisms can be 2 or more than 3.

The utility model has the creative point that the stalk pulling and ear picking mechanism component consists of a large and a small roller type stalk pulling and ear picking mechanism.

As can be seen from FIG. 4, the big and small roller type stalk-pulling ear-picking mechanism is common to the prior art in that: it is also composed of main and

auxiliary rollers

18, 19 and their associated

drive shafts

10, 9 and drive gears 20, 21. The main roller and the auxiliary roller are vertically hinged on the rack through transmission shafts of the main roller and the auxiliary roller and are distributed left and right; the upper ends of the transmission shafts of the main roller and the auxiliary roller are respectively provided with a driving gear which is meshed with each other; the main roller and the auxiliary roller are both formed by split rollers. Wherein, the main roller is respectively formed by coaxially connecting an upper roller 17, a power chain wheel 14 and a lower roller 13, and the auxiliary roller is respectively formed by coaxially connecting an upper roller 22 and a lower roller 25. The upper and lower rollers of the main roller and the upper and lower rollers of the auxiliary roller are both composed of a base cylinder with a cylindrical shape and a plurality of axial convex ribs manufactured on the outer surface of the base cylinder. The upper roller 17 of the main roller is composed of a base cylinder 16 and a rib 14, the lower roller 13 is composed of a base cylinder 11 and a rib 12, the upper roller 22 of the sub roller is composed of a base cylinder 24 and a rib 23, and the lower roller 25 is composed of a base cylinder 26 and a rib 27. The diameters of the

base cylinders

16 and 11 of the upper and lower rolls of the main roll are made equal, and the diameters of the

base cylinders

24 and 26 of the upper and lower rolls of the sub-roll are made equal. The difference between the present invention and the prior art is that the diameter of the outer containing cylinder of the main roll 18 is larger than that of the outer containing cylinder of the secondary roll 19, and the linear speeds of rotation of the main roll and the secondary roll are matched.

The matching of the rotating linear speeds of the main roller and the auxiliary roller means that: the linear speed of rotation of one of all the imaginary coaxial cylinders between the outer cylindrical shell of the primary roll and its base cylinder should be equal to the linear speed of rotation of one of all the imaginary coaxial cylinders between the outer cylindrical shell of the secondary roll and its base cylinder.

The preferred matching scheme of the rotating linear speed of the main roller and the auxiliary roller is as follows: the linear rotating speeds of the outer containing circles of the main roller and the auxiliary roller are equal or the linear rotating speeds of the base cylinders of the main roller and the auxiliary roller are equal.

The meaning that the diameter of the outer containing cylinder of the main roller is larger than that of the outer containing cylinder of the auxiliary roller is as follows: under the conditions of meeting the set value requirements of the roller spacing L, the height H of the convex ribs and the gap G between the rollers, namely the difference value between the outer cylindrical radius of the main roller and the base cylindrical radius of the auxiliary roller, ensuring the use strength of the rotating shaft of the auxiliary roller and avoiding the rotating interference between the main roller and the auxiliary roller, the base cylindrical diameter of the main roller, namely the ratio of the base cylindrical diameters D1 of the upper roller and the lower roller of the main roller to the base cylindrical diameter D2 of the auxiliary roller, namely the ratio of D1/D2 can be any value greater than 1.

In practical applications, the value range of L, H, G may be: when L is 85 to 95mm, H is 6 to 10mm, and G is 1 to 22mm, the ratio of D1/D2 may be 1.5 or 2.

For example, L90 mm, H7 mm, G8, D1 90mm, D2 60 mm. When D1/D2 is 1.5.

In order to realize the purpose that the rotating linear speeds of the outer containing cylinder of the main roller and the outer containing cylinder of the auxiliary roller are equal, the ratio of the number of teeth of the driving gear 20 of the main roller to the number of teeth of the driving gear 21 of the auxiliary roller can be equal to the ratio of the diameter of the outer containing cylinder of the main roller to the diameter of the outer containing cylinder of the auxiliary roller.

In order to further improve the operation quality and efficiency of the stalk pulling and ear picking mechanism, the utility model also improves the convex rib structures of the main roller and the auxiliary roller, and the improved stalk pulling and ear picking mechanism.

As shown in fig. 5, the ribs 12 of the lower roll 13 of the main roll and the

ribs

23, 27 of the upper and

lower rolls

22, 25 of the sub-roll are arranged along the axial direction of the roll body on which the ribs are arranged, and the ribs 15 of the upper roll 17 of the main roll are arranged in such a way that: each rib is formed by an upper body and a lower body, the upper body is arranged along the axial direction of the base cylinder 16, and the lower body is arranged along the spiral direction, namely, is arranged into a spiral rib, and the rotating direction of the spiral rib is matched with the rotating direction of the main roller. The meaning of said matching is: if the rotating direction of the main roller is set to be clockwise, the rotating direction of the spiral rib is right-handed; if the rotation direction of the main roller is set to be the counterclockwise direction, the rotation direction of the spiral rib is the left rotation.

The arrangement mode of the convex ribs of the main roller and the auxiliary roller is not unique, and the main roller and the auxiliary roller can be realized by the following steps: arranging the

convex ribs

15 and 12 of the upper and

lower rollers

17 and 13 of the main roller and the convex rib 27 of the lower roller 25 of the auxiliary roller along the axial direction of the base cylinder where the convex ribs are arranged; the ribs 23 of the upper roll 22 of the secondary roll are arranged in such a way that: each rib is composed of an upper body and a lower body, the upper body is arranged along the axial direction of the base cylinder 22, and the lower body is arranged along the spiral direction, namely, the rib is arranged into a spiral rib, and the spiral direction of the rib is matched with the turning direction of the upper roller auxiliary roller.

In order to reduce the manufacturing cost of the stalk pulling and ear picking mechanism and achieve better implementation effect, the utility model also integrates the upper roller 22 of the auxiliary roller and the base cylinder of the lower roller 25 into a whole, so that the integral base cylinder 28 shown in figure 6 is formed.

It should be noted that the base cylinders of the main and sub rolls according to the present invention include the solid bodies having cylindrical shapes, i.e., the tubular base cylinders of the main and sub rolls shown in fig. 7 and 9, and also include the imaginary inscribed cylinders of the deformed main and sub rolls, i.e., the

imaginary base cylinders

55 and 54 of the main and sub rolls, which are formed by inscribed cylinders at the root portions of the ribs, of the main and sub rolls shown in fig. 10.

In practical application, the cross-sectional shape of each rib of the main roller and the auxiliary roller of the utility model can be any one of the following preferred shapes:

(1) the section lines of the two side surfaces of each convex rib are isosceles trapezoid waistlines, and the section lines of the top surface are straight lines perpendicular to the symmetry axes of the two waistlines. Such a rib configuration is shown in fig. 7.

(2) The section lines of the two side surfaces of each convex rib are isosceles trapezoid waist lines, and the section lines of the top surface are arc lines. Such a rib structure is shown in fig. 8.

(3) The section lines of the convex ribs of each part are round lines. Such a rib structure is shown in fig. 9.

(5) The side shapes of the lower roll convex rib of the main roll and the lower roll convex rib of the auxiliary roll are saw-toothed as shown in figure 5.

The utility model discloses the distribution mode and the setting quantity of each convex rib of the main roller and the auxiliary roller on the circumference of the base cylinder:

1. when a gap is arranged between the outer containing cylinder of the main roller and the outer containing cylinder of the auxiliary roller, the convex ribs of each part of the main roller and the auxiliary roller can be uniformly distributed or not uniformly distributed on the circumference of the base cylinder; the number of the convex ribs of each part can be more or less, but at least 2-4 convex ribs are arranged.

2. When the outer containing cylinder of the main roller 18 and the outer containing cylinder of the secondary roller 19 are arranged in a mutually overlapped structural form, in order to ensure that the main roller and the secondary roller do not generate rotation interference, the number ratio of the convex ribs between the upper roller of the main roller and the upper roller of the secondary roller is equal to the diameter ratio of the base cylinders of the main roller and the secondary roller; the number ratio of the convex ribs between the lower roller of the main roller and the lower roller of the auxiliary roller is equal to the base cylinder diameter ratio of the main roller and the auxiliary roller.

The second creation point of the utility model is that the reel clamping and conveying mechanism component is composed of a linkage reel clamping and conveying mechanism component.

As can be seen from fig. 11, the linked reel pinching mechanism assembly is common to the prior art in that: each reel pinch mechanism 1 of the assembly consists of a reel pinch component A with the serial number of 45 and a reel pinch component B with the serial number of 46. The reel pinch components A are composed of a fold line shaped support frame 29 and a reel chain C arranged on a frame body at the front part of the support frame through a chain wheel group and a chain tensioning device matched with the support frame; the reel pinch part B consists of a fold-line-shaped chain clamping frame 30 and a reel chain D arranged on the chain clamping frame through a matched chain wheel group and a chain tensioning device. When assembling, the reel pinch parts A, B are all arranged on the frame 1 and distributed along the left and right direction, and the combined overlooking shape of the reel pinch parts and the frame is similar to a Y shape. The straw feeding inlet of the reel pinch mechanism is formed by a V-shaped opening formed by the front bodies of the folding points of the support frame 29 and the chain clamp frame 30, and the straw pinch channel of the mechanism is formed by a gap formed between the support frame 29 and the rear bodies of the folding points of the chain clamp frame 30 which are arranged in parallel at intervals. Each reel pinch mechanism is matched with a stalk pulling and ear picking mechanism 3, and the stalk pinch channel is aligned with the meshing lines of the main roller 18 and the auxiliary roller 19 of the corresponding stalk pulling and ear picking mechanism.

The structural form of the reel pinch part A which is positioned at the outermost side of the assembly of the linked reel pinch mechanism, namely the leftmost side shown in figure 11 is the same as that of the prior art. The reel chain C with the serial number 41 is arranged on the front frame body of the break point of the supporting frame 29 through a transmission chain wheel 40, a tensioning chain wheel 38 of a chain tensioning device 37 and a driving chain wheel 42.

It should be noted that in the present embodiment, the front frame body of the folding point of the supporting frame 29 of the reel pinching component a located at the outermost side of the assembly of the reel pinching mechanism of the present invention is slightly longer than the front frame body of the folding point of the supporting frame of the other reel pinching components a in the assembly, so as to facilitate the shifting of the side ridge straws during the operation. However, in practical application, the utility model can also be used when the supporting frame and the reel chain C of the reel pinching part A positioned at the outermost side of the assembly of the reel pinching mechanism of the utility model are consistent with the specification and the size of the same-name components of other reel pinching parts A in the assembly of the reel pinching mechanism of the utility model.

The linkage type reel clamping and conveying mechanism component is different from the prior art in that: the reel chains D arranged on the reel pinch parts B are respectively composed of a front reel chain 36 and a rear reel chain 34 which are respectively arranged on the frame bodies in front of and behind the break point of the chain clamping frame through the chain wheel components matched with the front reel chain 36 and the rear reel chain 34, wherein the front reel chain 36 is arranged on the frame body in front of the break point of the chain clamping frame 30 through a tension chain wheel 38 of a chain tension device 37 and a small chain wheel 48 of a duplex speed change chain wheel 39 positioned at the break point of the chain clamping frame, namely an upper chain wheel shown in fig. 12; the rear reel chain 34 is arranged on a frame body at the rear part of a node of the chain clamp frame 30 through a power chain wheel 14, a reversing chain wheel 31, a tension chain wheel 32 of a chain tension device 33 which are arranged on a main roller 18 of the stalk pulling and ear picking mechanism matched with the reel pinch mechanism where the rear reel chain is arranged, and a large chain wheel 47 of a duplex speed change chain wheel 39 shared with the front reel chain 36, namely a lower chain wheel shown in figure 12; the serial number 41 of the reel chain C of another reel pinch mechanism adjacent to the reel pinch component B is arranged on a frame body at the front of a folding point of the supporting frame through a transmission chain wheel 40, a tension chain wheel 38 of a chain tension device 37 and a small chain wheel 48 of a duplex speed change chain wheel 39, and a large chain wheel 47 of the duplex chain wheel is in transmission connection with the rear reel chain 34.

The reel chain C, the front reel chain and the rear reel chain are all formed by a complete chain, and reel fingers which are arranged at intervals, namely, protruding pieces for pulling the corn straws are arranged on the chains. The reel chain C and the front reel chain respectively form reel executing components of the reel pinch part A, B.

The third creation point of the utility model is that the fruit ear conveying mechanism is composed of a small auger type fruit ear conveying mechanism.

Fig. 13 shows a specific structure form of the small auger type fruit cluster conveying mechanism. As can be seen, the device comprises a dustpan-shaped ear collecting groove 51 and a packing auger component in the prior art. Its structural feature is the auger part contains 2 little augers 52, and this little auger all is located collection ear of grain inslot to articulate through the one end of its drive shaft 54 and the axle bed 50 of its adapted respectively collection ear of grain groove back outside portion, be promptly on the frame of its diagram left end body outside portion, form cantilever structure, it is adjacent be in by fixed setting between the little auger 52 collection ear of grain inslot baffle 53 on the bottom separates, the drive shaft outer tip of each little auger sets up drive gear 49 respectively.

It should be noted that, in practical application, the utility model is also allowed when the number of the small packing augers is more than 2.

The power transmission system of the utility model comprises: the source power of the header is taken from the engine of the harvester, and the power transmission system comprises the following existing power transmission chains:

1. the power output end of the engine is connected with the power transmission chains of the driving gears 20 and 21 of the main roller and the auxiliary roller of the stalk pulling and ear picking mechanism;

2. the power output end of the engine is connected with a driving gear 45 of the fruit cluster conveying mechanism for driving a power transmission chain;

3. the power output end of the engine is connected with a power transmission chain of a driving part of the shearing mechanism;

4. and a power transmission chain 44 which is respectively composed of a transmission shaft, a transmission chain, a bevel gear box 43 and the like shown in figure 11 is arranged between the power output end of the engine and the driving gear 42 of the reel chain C of the reel pinch component A at the outermost side of the reel pinch mechanism component.

The operation principle of the header of the utility model is as follows: the corn stalks in the field are cut by the shearing mechanism, the stalks are pushed into the V-shaped stalk pushing inlet by the stalk pushing and clamping mechanism and are conveyed to the stalk pulling and ear picking mechanism through the stalk pushing and clamping channel, after the stalks are pulled and the ears are picked by the main roller and the auxiliary roller of the mechanism, the ears are conveyed to the elevator by the ear conveying mechanism and are conveyed to the ear box by the elevator for centralized storage, and the ears are returned to the field or processed into required materials by an auxiliary device of the harvester.

Claims

1. A vertical corn harvester header, which includes a frame, a stalk-pulling and ear-picking mechanism component, a stalk-pulling mechanism component, a fruit ear conveying mechanism and a power transmission component, and the stalk-pulling and ear-picking mechanism component includes at least two pullers. The stalk picking mechanism, each pulling stalk picking mechanism is matched with a stalk picking mechanism, characterized in that the stalk pulling and picking mechanism components are composed of large and small roller-type stalk pulling and ear picking mechanisms. It is composed of a linkage type tweezers feeding mechanism, and the fruit ear conveying mechanism is composed of a small auger type fruit ear conveying mechanism.

2. A vertical corn harvester header according to claim 1, characterized in that the large and small roller type stalk pulling and ear picking mechanism comprises a main roller and an auxiliary roller, and the outer cylindrical diameter of the main roller is larger than that of the auxiliary roller. The outer diameter of the cylinder is contained, and the rotational speed of the main and auxiliary rollers is matched.

3. A vertical corn harvester header according to claim 2, characterized in that the main roller is composed of an upper roller, a power sprocket and a lower roller connected in sequence from top to bottom, and the auxiliary roller The roller is composed of upper and lower rollers. The upper and lower rollers of the main and auxiliary rollers are composed of a base cylinder and several ribs made from its cylindrical surface. The base cylinders of the upper and lower rollers of the auxiliary roller are made of one.

4 . The vertical corn harvester header according to claim 3 , wherein the upper and lower roller ribs of the main and auxiliary rollers are arranged along the axial direction of the base cylinder where they are located. 5 .

5. A vertical corn harvester header according to claim 3, characterized in that the upper and lower roller rib of the auxiliary roller and the lower roller rib of the main roller are all along the direction of the base cylinder where they are located. Axial arrangement; the upper roller rib of the main roller is arranged in this way: each rib is composed of an upper body and a lower body, the upper body is arranged along the axial direction of the base cylinder where it is located, and the lower body is arranged along the helical direction , and make its rotation match the rotation of the main roller.

6. A vertical corn harvester header according to claim 3, characterized in that the upper and lower roller rib of the main roller and the lower roller rib of the auxiliary roller are along the direction of the base cylinder where they are located. Axial arrangement; the upper roller rib of the auxiliary roller is arranged in this way: each rib is composed of an upper body and a lower body, the upper body is arranged along the axial direction of the base cylinder where it is located, and the lower body is arranged along the helical direction , and make its rotation match the rotation of the main roller.

7. The header of a vertical corn harvester according to claim 3, 4, 5 or 6, wherein the cross-sectional shape of the raised ribs is any of the following shapes:

The cross-section lines of the two sides of each convex rib are isosceles trapezoid waistlines, and the cross-section lines of the top surface are straight lines perpendicular to the symmetry axes of the two waistlines;

The cross-section lines on both sides of the raised ribs are isosceles trapezoid waist lines, and the cross-section lines on the top surface are arc lines;

The section lines of the raised ribs are all round lines;

The cross-section lines on both sides of the raised ribs are arc lines, and the top cross-section lines are arc lines;

The lateral shapes of the lower roller rib of the main roller and the lower roller rib of the auxiliary roller are both saw blade-like.

8 . The header of a vertical corn harvester according to claim 3 , wherein the linkage-type pinch feeding mechanism is composed of pinch feeding parts A and B, and the pinch feeding part A is 8 . Contains a reel chain C, and the reel clip feeding part B contains a broken line-shaped chain clip frame and a reel chain D, and the reel chain D is set before and after the inflection point of the chain clip frame by the equipped sprocket component. The front and rear reel chains on the frame body are formed, the rear reel chain is drivingly connected with the power sprocket, and is connected with the front reel chain and the reel chain of another adjacent reel clipping mechanism. The connection between C and C is realized by the double speed change sprocket with the same gear ratio.

9 . The header of a vertical corn harvester according to claim 1 , wherein the small auger type ear conveying mechanism is composed of an ear collecting trough and an auger part, and the auger part contains at least two auger parts. 10 . The small auger is located in the ear collecting groove, and is hinged on the frame on the outer side of the back of the ear collecting groove through one end of its drive shaft and the shaft seat it is equipped with, forming a cantilever. In the structure, the adjacent small augers are separated by partitions fixedly arranged on the inner bottom surface of the ear collecting groove, and the outer ends of the drive shafts of the small augers are respectively provided with drive gears.