CN219459800U

CN219459800U - Corn harvester header and corn harvester

Info

Publication number: CN219459800U
Application number: CN202320446340.1U
Authority: CN
Inventors: 惠兆元; 单宝喜; 袁保雷
Original assignee: Weichai Lovol Intelligent Agricultural Technology Co Ltd
Current assignee: Weichai Lovol Intelligent Agricultural Technology Co Ltd
Priority date: 2023-03-10
Filing date: 2023-03-10
Publication date: 2023-08-04
Anticipated expiration: 2033-03-10

Abstract

The utility model discloses a corn harvester header and a corn harvester, wherein the corn harvester header comprises a header body, a plurality of crop dividers are arranged on the front side of the header body, the front ends of the crop dividers are in cone-tip shapes, a stalk pulling roller assembly is arranged between two adjacent crop dividers, the stalk pulling roller assembly comprises a transmission case, a cutter disc and two stalk pulling rollers, the transmission case is arranged at the lower end of the header body and positioned at the rear part between the two crop dividers, the transmission case is provided with a first downward power output end and two second forward power output ends which are distributed at intervals along the left-right direction, the rear end of each stalk pulling roller is coaxially connected with the corresponding second power output end, the cutter disc is in straight bar shape, the middle part of each stalk pulling roller is fixedly connected with the first power output end, the cutter disc passes through the lower part between the two stalk pulling rollers when rotating, the front-rear distance between the first power output end and the second power output end is increased, so that the stalk cutting position is moved forwards relative to the two stalk pulling rollers, and the operation efficiency is high.

Description

Corn harvester header and corn harvester

Technical Field

The utility model belongs to the field of harvesters, and particularly relates to a corn harvester header and a corn harvester.

Background

The cutting blade disc is relatively big to the interval of drawing stem roller subassembly feeding end on the header of maize picker on the present market, and when its working speed exceeded 5km/h, the straw cuts up the quality decline obviously, leads to user experience poor, and the operating efficiency is low, in addition, the ear picking board bending angle on the current header is big, there is the great condition of header ear loss, current reel sprocket is covered by the divider completely simultaneously, the cornstalk can not effectively pass through entering and draw the stem device in the operation process.

Disclosure of Invention

In order to solve the technical problems, the technical scheme of the utility model is as follows: the utility model provides a maize picker header, includes the header body, the front side of header body is equipped with a plurality of divider of following left and right directions interval evenly distributed, the front end of divider is the taper, and two adjacent be equipped with between the divider and draw the stem roller subassembly, draw the stem roller subassembly including transmission case, cutter disc and two stem rollers, the transmission case is installed the lower extreme of header body to be located two of correspondence the rear between the divider, the transmission case has a first power take off end and two second power take off ends that forward and follow left and right directions interval distribution, two draw the stem roller and all set up along the fore-and-aft direction, and two draw stem roller and two second power take off ends one-to-one, every draw the rear end and the correspondence of stem roller second power take off end coaxial coupling, cutter disc is the straight strip shape, and the middle part with first power take off end fixed connection to be located two the rear between the divider disc is cut off the cutter disc and two when rotating the cutter disc is cut the two and is passed through with the second power take off end between the two of stem roller pair of roller pair before the cutter disc is cut the distance between the two and the stem roller pair of the cutter head is cut in the position.

The beneficial effects of the technical scheme are that: according to the utility model, the front-rear distance between the first power output end and the second power output end is increased, so that the position of the cutter head moves forwards relative to the two stalk pulling rollers, the minimum distance between the rotating track of the cutter head and the feeding end of the stalk pulling roller assembly is reduced on the premise of not changing the length of the cutter head, namely, corn stalks at the feeding end of the stalk pulling roller assembly can be cut more rapidly, even if the running speed of the harvester is increased, the corn stalks cannot be blocked at the feeding end of the stalk pulling roller assembly to cause poor cutting effect, and therefore, the harvesting efficiency can be remarkably improved.

In the technical scheme, the minimum distance between the rotating track of the cutter disc and the feeding end of the stalk-pulling roller assembly is M, wherein M is more than or equal to 10mm and less than or equal to 30mm.

The beneficial effects of the technical scheme are that: the minimum distance between the rotating track of the cutter disc and the feeding end of the stalk-pulling roller assembly is adjusted to be 10-30 mm, so that the working time of cutting the stalk can be prolonged (the stalk is fully cut), the clearance between the cutter disc and the ground is kept properly reduced when the cutting table is in a working state, and the stubble height of the stalk is reduced.

According to the technical scheme, the reel sprockets are rotatably arranged below one side, close to each other, of the front ends of two adjacent crop dividers, the edges of the reel sprockets protrude out of the crop dividers correspondingly, two third power output ends which are distributed at intervals in the left-right direction and face upwards are further arranged on the transmission case, a first transmission wheel is arranged at each third power output end, a second transmission wheel is fixedly arranged on each reel sprocket coaxially, each third power output end corresponds to the reel sprocket on the same side of the corresponding crop divider in front of the reel sprocket, and each first transmission wheel is in transmission connection with the corresponding second transmission wheel.

The beneficial effects of the technical scheme are that: through partly exposing the reel sprocket, so make the header when the operation, reel sprocket can assist backward water conservancy diversion to the feed end that gets into the stalk-pulling roller subassembly with corn stalk to make the orderly feed end that gets into the stalk-pulling roller subassembly of corn stalk when reaping.

In the technical scheme, the first driving wheel and the second driving wheel are both chain wheels and are connected through chain transmission.

The beneficial effects of the technical scheme are that: the structure is simple, and the transmission effect is good.

In the technical scheme, the sides, close to each other, of the adjacent two crop dividers are provided with the ear picking plates along the front-rear direction, the two ear picking plates are distributed at intervals and are respectively positioned above the corresponding two stalk pulling rollers, the sides, close to each other, of the two ear picking plates are bent downwards, and the bending angle is alpha, and is less than or equal to 15 degrees.

The beneficial effects of the technical scheme are that: therefore, the contact angle between the ear picking plate and the corn ears can be reduced, and the loss of kernels of the corn ears is reduced.

In the technical scheme, the front ends of the adjacent two ear picking plates are chamfered to be arc-shaped at the sides close to each other.

The beneficial effects of the technical scheme are that: so that the straw can more smoothly enter between the two ear picking plates.

The second purpose of the utility model is to provide a corn harvester with simple structure and high operation efficiency.

In order to achieve the above object, the technical scheme of the present utility model is as follows: a corn harvester comprising a corn harvester header as described above.

The beneficial effects of the technical scheme are that: the operation efficiency is high.

Drawings

FIG. 1 is a bottom view of a corn harvester header according to embodiment 1 of the utility model;

FIG. 2 is a top view of the stalk roll assembly of example 1 of the present utility model;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is a schematic view of a cutter head according to embodiment 1 of the present utility model;

FIG. 5 is a top view of a corn harvester header according to example 1 of the utility model;

FIG. 6 is a front view of the stalk roll assembly of example 1 of the present utility model;

FIG. 7 is a top view of two ear plates according to example 1 of the present utility model;

FIG. 8 is a front view of two ear plates according to embodiment 1 of the present utility model;

FIG. 9 is a schematic diagram of the transmission connection of the first transmission wheel and the second transmission wheel in embodiment 1 of the present utility model;

fig. 10 is a side view of a corn harvester header according to an embodiment of the utility model.

In the figure: 1. a header body; 2. a crop divider; 21. a reel; 22. a second driving wheel; 3. a stalk roll assembly; 31. a transmission case; 311. a first power output; 312. a second power output; 313. a third power output; 314. a first driving wheel; 32. cutting up a cutter head; 33. a stalk pulling roll; 331. a guide cone; 4. a chain; 5. ear picking plate.

Detailed Description

The principles and features of the present utility model are described below with examples given for the purpose of illustration only and are not intended to limit the scope of the utility model.

Example 1

As shown in fig. 1 and 2, the embodiment provides a corn harvester header, comprising a header body 1, a plurality of crop dividers 2 uniformly distributed along left and right directions are provided at the front side of the header body 1, the front ends of the crop dividers 2 are in taper-tip shape, and a stalk pulling roller assembly 3 is provided between two adjacent crop dividers 2, the stalk pulling roller assembly comprises a transmission case 31, a cutter head 32 and two stalk pulling rollers 33, the transmission case 31 is mounted at the lower end of the header body 1 and is located at the rear side between the corresponding two crop dividers 2, the transmission case 31 is provided with a first downward power output end 311 and two second forward and left and right direction interval distribution second power output ends 312, the two stalk pulling rollers 33 are all arranged along the front and rear directions, the two stalk pulling rollers 33 are in one-to-one correspondence with the two second power output ends 312, the rear end of each stalk pulling roller 33 is coaxially connected with the corresponding second power output end 33, the cutter head 32 is rotatably connected with the two cutter head 32, when the cutter head is in a position between the two cutter head 32 and the cutter head 32 is extended relative to the front end, the cutter head 32 is rotatably mounted at the front end of the cutter head 32, thereby the front end is extended relative to the cutter head 32, the front end is extended to the cutter head 32, and the stalk pulling roller 33 is cut by the cutter head 32, according to the utility model, the front-rear distance between the first power output end 311 and the second power output end 312 is increased, so that the position of the cutter head 32 is moved forward relative to the two stalk rolls 33, and the minimum distance between the rotating track of the cutter head and the feeding end of the stalk roll assembly 3 is reduced under the precondition that the length of the cutter head is not changed, namely, the corn stalks at the feeding end of the stalk roll assembly can be cut more rapidly, so that even if the running speed of the harvester is increased, the corn stalks cannot be blocked at the feeding end of the stalk roll assembly, the cutting effect is poor, and therefore, the harvesting efficiency can be remarkably improved.

As shown in fig. 2 and 3, in the above technical solutions, the minimum distance between the rotation track of the cutter head 32 and the feeding end of the stalk-pulling roller assembly 3 is M, where M is 10mm less than or equal to 30mm (the M value of the existing header before improvement is greater than 100 mm), and by adjusting the minimum distance between the rotation track of the cutter head 32 and the feeding end of the stalk-pulling roller assembly 3 to be 10mm-30mm (preferably 10mm, 20mm or 30 mm), the working time of stalk cutting can be increased (the stalk is fully cut), and the gap between the cutter head and the ground is kept properly reduced when the header is in the working state, and the stalk stubble height is reduced. The dashed circle in fig. 2 represents the rotation trace of the edge of the chopper wheel, while the short dashed line in fig. 3 represents the line connecting the rotation trace of the chopper wheel 32 with the minimum distance between the feed end of the stalk roll assembly 3.

As shown in fig. 9, in the above technical solution, a reel sprocket 21 is rotatably mounted below one side of the front ends of two adjacent crop dividers 2, edges of the reel sprockets 21 protrude out of the corresponding crop dividers 2, two third power output ends 313 are further disposed on the transmission case 31, and are spaced apart in the left-right direction and face upwards, a first transmission wheel 314 is mounted at each third power output end 313, a second transmission wheel 22 is coaxially and fixedly disposed on each reel sprocket 21, each third power output end 313 corresponds to a reel sprocket 21 on the same side of the corresponding crop divider 2 in front of the corresponding reel sprocket, and each first transmission wheel 314 is in transmission connection with the corresponding second transmission wheel 22, so that when the cutting table works, the reel sprockets can assist in guiding corn stalks backwards to the feeding end of the stalk pulling roller assembly, and the corn stalks can sequentially enter the feeding end of the stalk pulling roller assembly.

In the above technical solution, the first driving wheel 314 and the second driving wheel 22 are sprockets, and are in driving connection through the chain 4, so that the structure is simple, and the driving effect is good.

As shown in fig. 5 to 8, in the above technical solution, the sides of the two adjacent crop dividers 2, which are close to each other, are respectively provided with ear picking plates 5 along the front-rear direction, and the two ear picking plates 5 are spaced and distributed and are respectively located above the two corresponding stalk pulling rollers 33, and the sides of the two ear picking plates 5, which are close to each other, are bent downwards, and the bending angle is α, and α is less than or equal to 15 ° (preferably 15 °,10 ° or 5 °), so that the contact angle of the ear picking plates and corn ears can be reduced, thereby reducing the grain loss of corn ears.

In the above technical scheme, the sides of the front ends of the adjacent two ear picking plates 5, which are close to each other, are chamfered into circular arc shapes, so that the straws can more smoothly enter between the two ear picking plates.

When the harvester runs at a higher speed, the header provided by the embodiment still has a better cutting capability on the straw, so that the working efficiency of the header is obviously improved.

Example 2

The embodiment provides a corn harvester, which comprises the corn harvester header disclosed in the embodiment 1, and has high operation efficiency.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. The utility model provides a corn harvester header, includes header body (1), the front side of header body (1) is equipped with a plurality of divider (2) of following left and right directions interval evenly distributed, the front end of divider (2) is the taper, and is equipped with between two adjacent divider (2) and draws stem roller assembly (3), draw stem roller assembly includes transmission case (31), cutter head (32) and two and draw stem roller (33), transmission case (31) are installed the lower extreme of header body (1) to be located corresponding two the rear between divider (2), transmission case (31) have a first power take-off (311) and two second power take-off (312) of leading forward and following left and right directions interval distribution, two draw stem roller (33) all are along the fore-and-aft direction setting, and two draw stem roller (33) and two second power take-off (312) one-to-one, and cut up the cutter head (33) and two are cut up the tip (32) and are cut up the tip (33) and are cut up the tip (32) and are cut up in advance to the roller assembly is the roll (33) is connected for the one to the front and two in the direction when the two draw stem roller (33) is connected with the front of the roller assembly (33) and the tip (32), characterized in that the front-rear distance between the first power output end (311) and the second power output end (312) is increased to move the cutter head (32) forward relative to the two stalk rolls (33).

2. The corn harvester cutting table according to claim 1, wherein the minimum distance between the rotation track of the cutter head (32) and the feeding end of the stalk roll assembly (3) is M, wherein M is more than or equal to 10mm and less than or equal to 30mm.

3. The corn harvester cutting table according to claim 1, wherein a reel (21) is rotatably mounted below one side of the front ends of two adjacent crop dividers (2) close to each other, the edge of the reel (21) protrudes out of the corresponding crop divider (2), two third power output ends (313) distributed at intervals in the left-right direction and facing upwards are further arranged on the transmission case (31), a first transmission wheel (314) is mounted at each third power output end (313), a second transmission wheel (22) is fixedly arranged on each reel (21) coaxially, each third power output end (313) corresponds to the reel (21) on the same side of the corresponding crop divider (2) in front of the reel, and each first transmission wheel (314) is in transmission connection with the corresponding second transmission wheel (22).

4. A corn harvester header according to claim 3, characterized in that the first drive wheel (314) and the second drive wheel (22) are sprockets and are in drive connection by means of a chain (4).

5. Corn harvester cutting table according to claim 1, characterized in that the side of the adjacent two crop dividers (2) close to each other is provided with picking plates (5) along the front-rear direction, and the two picking plates (5) are distributed at intervals and are respectively positioned above the corresponding two stalk pulling rollers (33), and the side of the two picking plates (5) close to each other is bent downwards, wherein the bending angle is alpha, and alpha is less than or equal to 15 degrees.

6. Corn harvester cutting table according to claim 5, characterized in that the sides of the front ends of two adjacent picking plates (5) which are close to each other are chamfered to be circular arc.

7. A corn harvester comprising a corn harvester header according to any one of claims 1-6.