CN114365620A - Header of corn harvester - Google Patents

Abstract

The invention discloses a header of a corn harvester, and belongs to the field of agricultural machinery. It has solved among the prior art header of maize picker and has stopped up by corn stalk easily at the during operation, is difficult to the clearance after stopping up, and artifical clearance gives other people easily and causes the defect of injury. A cutting table of a corn harvester comprises a frame, wherein a cutting table transmission mechanism, a snapping bin, a grain pulling device and a snapping roller are arranged on the frame; the header transmission mechanism transmits the power of the main machine of the corn harvester to the grain catcher and the ear picking roller through the ear picking box; the header of the corn harvester is provided with a header gearbox. The invention is mainly used for a large-scale corn harvester, and can also be used for a small-scale corn harvester and other agricultural harvesters.

Description

Header of corn harvester

Technical Field

The invention relates to a corn harvesting machine, in particular to a header of a corn harvesting machine.

Background

Along with the rapid popularization and generalization of agricultural mechanization in China, the degree of agricultural mechanization in China is higher and higher, and particularly in the sowing and harvesting links of crops, the degree of mechanization is greatly improved in the last ten years. Due to the popularization of the corn harvesting machine, the working efficiency is greatly improved, and the labor intensity of farmers is reduced. However, the mechanical corn harvesting machine improves the working efficiency, and the existing corn harvester itself has some unsatisfactory places. For example, in the working process of a corn harvester, the situation that corn straws choke the snapping roll of the header often occurs. In case the situation that the snapping roll of the header is choked by the corn straws appears, the corn harvester cannot normally work, at the moment, a driver often stops the corn harvester, a worker stands in front of the header and manually cleans the corn straws clamped in the snapping roll, and the corn straws are pulled out by hands, so that the corn straws are easily pulled out, and the power of the header of the corn harvester is not often cut off at the moment. The operation is very dangerous and easy to hurt people, and the arms of people can be rolled in by carelessness to cause serious injury; but also wastes time and labor, and can influence the operating efficiency of the corn harvester to a certain extent. Therefore, there is a great need for a corn harvester header that overcomes the disadvantages of prior art corn harvesters.

Disclosure of Invention

The invention aims to provide a corn harvester header, which overcomes the defects that in the prior art, once a snapping roller of the corn harvester header is choked in the working process, the corn straws of the header need to be manually cleaned, so that workers are easily injured and the working efficiency of the corn harvester is reduced.

The invention is realized by adopting the following technical scheme:

a cutting table of a corn harvester comprises a frame, wherein a cutting table transmission mechanism, a snapping bin, a grain pulling device and a snapping roller are arranged on the frame; the header transmission mechanism transmits the power of the main machine of the corn harvester to the grain catcher and the ear picking roller through the ear picking box; the header of the corn harvester is provided with a header gearbox. The header gearbox is arranged on the header of the corn harvester, so that the defect that header operation parts can only rotate forwards and cannot rotate backwards can be overcome.

The header gearbox may be provided with a forward and/or reverse speed change mechanism. The gearbox can be provided with only a reverse rotation mechanism or a forward rotation mechanism, and can also be provided with the forward rotation mechanism and the reverse rotation mechanism simultaneously.

The corn harvester header can include header and lower header, header and lower header fixed connection.

The header gearbox may be fixedly mounted on the corn harvester header. The header gearbox is fixedly arranged on the header of the corn harvester, a power output shaft of the header gearbox is directly connected with a transmission mechanism of the header, and the header gearbox is convenient and easy to install and fix.

The power output shaft of the header gearbox can be provided with a chain wheel or/and a belt pulley; the power input shaft of the header gearbox can be provided with a universal joint or a coupling or a spline shaft seat I and is connected with the power transmission shaft output by the corn harvester through the universal joint or the coupling or the spline shaft seat I.

The header gearbox can be fixedly mounted on a main machine of the corn harvester.

The power input shaft of the header gearbox can be provided with a universal joint or a coupling or a spline shaft seat I and is connected with a power transmission shaft output by the main machine of the corn harvester through the universal joint or the coupling or the spline shaft seat I; the power output shaft of the header gearbox can be provided with a universal joint or a coupling or a spline shaft seat II and is connected with the header transmission mechanism through a power transmission shaft.

A protective plate is preferably arranged above the snapping roll. The protective plate is arranged above the ear picking roller, so that corn kernels can be effectively prevented from falling off and causing loss when the corn ears are dry.

Compared with the prior art, the invention has the beneficial effects that: the cutting table of the corn harvester is provided with the cutting table gearbox, so that the reverse rotation of a transmission mechanism of the cutting table of the corn harvester can be realized, namely, the reverse rotation of the grain pulling device and the snapping roll can be realized. When the corn harvester works, once the situation that the corn straws choke the grain collecting device and the snapping roll of the header occurs, the reversing function of the gearbox of the header can be started, the corn straws jammed in the grain collecting device and the snapping roll are discharged, the difficulty of manual operation is greatly reduced, and the occurrence of human injury events is effectively avoided; the forward rotation of the header gearbox can be accelerated, and the work efficiency of the header can be improved when the forward rotation acceleration function of the header gearbox is started according to operation requirements.

Drawings

FIG. 1 is a front view of a schematic view of a header of a corn harvester;

FIG. 2 is a top view of a schematic of a header of a corn harvester;

FIG. 3 is a partial enlarged view B of FIG. 2;

FIG. 4 is a partial view from the direction C of FIG. 1;

fig. 5 is a front view of a header gearbox in embodiment 1;

fig. 6 is a left side view of the header gearbox of embodiment 1;

fig. 7 is a right side view of the header gearbox of embodiment 1;

FIG. 8 is a cross-sectional view A-A of FIG. 7;

FIG. 9 is a cross-sectional view taken along line D-D of FIG. 7;

FIG. 10 is a partial view of the section E-E of FIG. 9;

FIG. 11 is a partial view of the cross-sectional view H-H of FIG. 6;

fig. 12 is a front view of a header gearbox in embodiment 3;

FIG. 13 is a front view showing a schematic structure of embodiment 4.

In the figure: 1. a header is put; 2. an auger sprocket; 3. a header is arranged; 4. a protective cover; 5. a power take-off shaft; 6. a grain pulling device; 7. snapping a roll; 8. a protection plate; 9. a screw conveyor; 10. a power input shaft; 11. a header gearbox; 12. a header transmission mechanism; 13. a transmission case; 14. a second gear driving gear; 15. an engagement sleeve; 16. a reverse drive gear; 17. a first gear driving gear; 18. a sprocket; 19. picking up the ear box; 20. a belt pulley; 21. a second-gear intermediate gear; 22. a reverse driven gear; 23. a frame; 24. a support sleeve; 25. a shaft connecting device I; 26. a shaft connecting device II; 27. a first-gear intermediate gear; 28. an idler shaft; 29. a first-gear output gear; 30. a second gear output gear; 31. a gearbox bracket; 32. a second gear shift fork shaft; 33. first gear and reverse gear shift fork shafts; 34. and a stay wire connecting hole.

Detailed Description

The invention will be further explained with reference to the drawings.

Example 1:

a cutting table of a corn harvester comprises a frame 23, wherein a cutting table transmission mechanism 12, a cutting table gear box 11 and an ear picking box 19 are arranged on the frame 23, and a power output shaft of the ear picking box 19 is respectively connected with a grain pulling device 6 and an ear picking roller 7; the power transmitted by the main machine of the corn harvester is transmitted to the ear picking box 19 through the cutting table gear box 11, the cutting table transmission mechanism 12 and the chain wheel 18, and then transmitted to the grain pulling device 6 and the ear picking roller 7.

The cutting table of the corn harvester is provided with a cutting table gear box 11, a power input shaft 10 of the cutting table gear box 11 is in transmission connection with power transmitted by a main machine of the corn harvester, and a power output shaft 5 of the cutting table gear box 11 is in transmission connection with a cutting table transmission mechanism 12; the header gearbox 11 is provided with a forward rotation mechanism and a reverse rotation mechanism, so that the reverse rotation of the header transmission mechanism can be realized; the header transmission mechanism rotates reversely, and the grain collecting device 6 and the snapping roll 7 also rotate reversely at the same time. When the grain pulling device 6 and the snapping roll 7 are plugged by the corn straws, the corn straws plugged in the snapping roll 7 can be quickly cleaned through the reverse rotation of the grain pulling device 6 and the snapping roll 7, the difficulty of manual operation is greatly reduced, and the occurrence of human injury events is effectively avoided.

The cutting table gearbox 11 is provided with a neutral position, a first forward gear, a second forward gear and a reverse gear, the cutting table gearbox 11 is provided with a power input shaft 10, a power output shaft 5 and an idler shaft 28, the power input shaft 10 is provided with a first gear driving gear 17, a second gear driving gear 14 and a reverse gear driving gear 16, the power output shaft 5 is provided with a first gear output gear 29, a second gear output gear 30 and a reverse gear driven gear 22, and the idler shaft 28 is provided with a first gear intermediate gear 27 and a second gear intermediate gear 21.

When the reverse gear driving gear 16 is meshed with the reverse gear driven gear 22, the header transmission mechanism 12 rotates reversely, so that the grain collecting device 6 and the snapping roll 7 rotate reversely, namely reverse rotation is realized; the first gear output gear 29 and the first gear intermediate gear 27, the second gear output gear 30 and the second gear intermediate gear 21 are in a normally meshed state; when the first gear driving gear 17 is meshed with the first gear intermediate gear 27, the header transmission mechanism 12 rotates forwards at a normal working speed; when the second gear driving gear 14 is meshed with the second gear intermediate gear 21, the header transmission mechanism 12 rotates positively, and 1.2 times of speed increase is realized.

When the header gearbox 11 is in the first gear, the speed of each working part of the header of the corn harvester is the normal working speed; when the header gearbox 11 is in the second gear, the speed of each working component of the header of the corn harvester is 1.2 times of the normal speed.

The shaft connecting device I25 and the shaft connecting device II26 can be universal joints or shaft couplings or spline shaft bases and the like.

Example 2:

a header of a corn harvester comprises an upper header 3 and a lower header 1, wherein the upper header 3 is fixedly connected with the lower header 1; the header gearbox 11 is fixedly arranged on a header of the corn harvester; the power input shaft 10 of the header gearbox 11 is connected with a power transmission shaft transmitted by a main machine of the corn harvester through a shaft connecting device I25, and the power output shaft 5 of the header gearbox is connected with the header transmission mechanism 12 through a belt pulley 20 and a chain wheel 18; a protective plate 8 is arranged above the snapping roll 7; the rest is the same as in example 1.

The header gearbox 11 is fixedly arranged on the lower header 1 of the corn harvester, so that the corn harvester is convenient and easy to operate, and the structure of the main machine part of the corn harvester does not need to be changed.

Example 3:

a power input shaft 10 of a header gearbox 11 is provided with a shaft connecting device I25, the shaft connecting device I25 is connected with a power transmission shaft output by a main machine of a corn harvester, a power output shaft 5 is provided with a shaft connecting device II26 and is connected with a header transmission mechanism through a power transmission shaft, a chain wheel and a belt pulley; the header gearbox 11 has the same internal structure as in embodiment 1.

A header gearbox mounting and fixing support is arranged on a main machine of the corn harvester, and a header gearbox 11 is fixedly mounted on the main machine of the corn harvester.

Example 4:

a header of a corn harvester comprises an upper header 3 and a lower header 1, wherein the upper header 3 is fixedly connected with the lower header 1; the header transmission mechanism 12 is respectively connected with the power shafts on the upper header 3 and the lower header 1 through belt pulleys or chain wheels; the rest is the same as in example 1. The upper header 3 is used for harvesting corn ears, the lower header 1 is used for harvesting corn straws, and the corn straws are conveyed and stored through other components on the corn harvester after being harvested.

When the corn harvester header is used, the corn harvester header is fixedly arranged on the corn harvester header or a main machine of the corn harvester through the gearbox bracket 31 according to design requirements, the operating lever of the header gearbox 11 is arranged in a cab and is connected with a gear shifting stay wire, the gear shifting stay wire is connected with the second-gear shifting fork shaft 32 and the stay wire connecting holes 34 of the first-gear shifting fork shaft and the reverse-gear shifting fork shaft 33, and the shifting fork is arranged on the gear shifting shaft; the shifting fork is controlled by the operating rod to realize gear shifting and gear shifting.

Claims (8)

1. A cutting table of a corn harvester comprises a rack (23), wherein a cutting table transmission mechanism (12), an ear picking box (19), a grain pulling device (6) and an ear picking roller (7) are arranged on the rack (23); the header transmission mechanism (12) transmits the power of the main machine of the corn harvester to the grain catcher (6) and the snapping roll (7) through the snapping box (19); the method is characterized in that: the header of the corn harvester is provided with a header gearbox (11).

2. The corn harvester header of claim 1, wherein: the header gearbox (11) is provided with a forward rotation speed change mechanism and/or a reverse rotation speed change mechanism.

3. The corn harvester header of claim 2, wherein: the header of the corn harvester comprises an upper header (3) and a lower header (1), wherein the upper header (3) is fixedly connected with the lower header (1).

4. The corn harvester header of claim 2, wherein: the header gearbox (11) is fixedly arranged on the header of the corn harvester.

5. A corn harvester header as defined in claim 4, wherein: a power output shaft (5) of the header gearbox (11) is provided with a chain wheel or/and a belt pulley; the power input shaft (10) of the header gearbox is provided with a universal joint or a coupling or a spline shaft seat I (25) and is connected with a power transmission shaft output by a main machine of the corn harvester through the universal joint or the coupling or the spline shaft seat I (25).

6. The corn harvester header of claim 2, wherein: the header gearbox (11) is fixedly arranged on a main machine of the corn harvester.

7. A corn harvester header as defined in claim 6, wherein: a power input shaft (10) of the header gearbox (11) is provided with a shaft connecting device I (25) and is connected with a power transmission shaft output by the corn harvester through the shaft connecting device I (25); a power output shaft (5) of the header gearbox (11) is provided with a shaft connecting device II (26) and is connected with the header transmission mechanism (12) through a power transmission shaft.

8. A corn harvester header as in claims 1 to 7, wherein: a protective plate (8) is arranged above the snapping roll (7).

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