CN108934430B

CN108934430B - Sunflower harvesting table with forced pull-down function

Info

Publication number: CN108934430B
Application number: CN201810776405.2A
Authority: CN
Inventors: 邵园园; 吕明元; 玄冠涛; 吴彦强; 刘晶; 马明
Original assignee: Shandong Agricultural University
Current assignee: Shandong Agricultural University
Priority date: 2018-07-09
Filing date: 2018-07-09
Publication date: 2023-05-26
Anticipated expiration: 2038-07-09
Also published as: CN108934430A

Abstract

The invention provides a sunflower harvesting header with a forced pull-down function, which comprises a header body, a tray divider, a reel chain, a stalk pulling roller, a rotary cutter, a gear box, a throwing roller, an auger and the like. The sunflower harvesting header with the forced pull-down function is hung on a host, the host advances in the sunflower field, when sunflower straws enter the working range of the header (between two tray crop dividers), the sunflower straws firstly move backwards under the poking of a straw pulling chain, then move backwards under the action of a stalk pulling roller and the straw pulling chain, and reach the position of a rotary cutter to cut off the straws. At the moment, the sunflower discs are thrown into the action range of the auger under the action of the throwing rollers in the action area of the throwing rollers above the tray divider, and the auger is used for collecting materials and then conveying the materials to the whole machine. The invention can solve the problem that the straw blocks the cutting channel when the sunflower is harvested, reduce equipment faults caused by the blocking of the cutting channel, improve the working efficiency and reduce the labor intensity.

Description

Sunflower harvesting table with forced pull-down function

Technical Field

The invention mainly belongs to the field of agricultural machinery, and particularly relates to a sunflower harvesting header with a forced pull-down function.

Background

Sunflower seeds are important cash crops in China and are mainly distributed in Xinjiang and other places. The sunflower harvester in the current market is formed by refitting the header structure and the threshing system thereof on the basis of the wheat combine harvester, so that the most basic harvesting requirement can be met, and compared with manual harvesting, the labor intensity of farmers is reduced to a certain extent, however, the sunflower harvester in the current market is easy to cause the problem that straws block the header when harvesting sunflower, and further the header is blocked to cause equipment failure.

Disclosure of Invention

The invention aims to provide a sunflower harvesting header with a forced pull-down function, when sunflower straws enter the working range of the header, the sunflower straws are firstly stirred to move backwards by a reel chain, then downwards and backwards move under the forced pull-down of a stalk pulling roller and the reel chain, and the stalk is cut off by reaching a rotary cutter position, so that the problem that the sunflower straws block the header during harvesting is solved, equipment faults caused by the header blocking are reduced, the working efficiency is improved, and meanwhile, the labor intensity is reduced. The specific scheme is as follows:

a sunflower harvesting table with forced pull-down function, a divider is arranged between side plates at two sides of the front end of the harvesting table, the divider consists of a plurality of tip plates distributed in a comb shape, a rotary cutter is arranged above the rear end of the divider, a throwing device is arranged above the rotary cutter, an auger is arranged behind the throwing device,

the lower part of each tip plate is provided with a mounting plate with the length direction consistent with the tip plate, the front end and the rear end of each mounting plate are provided with driving chain wheels, the top surface of each mounting plate is provided with a seedling pulling chain, the seedling pulling chains are meshed with the driving chain wheels at the front end and the rear end of the mounting plate so as to do circumferential motion along the outline of the mounting plate, a seedling pulling wing is arranged at a certain distance from the extension of the seedling pulling chains, the mounting plate is positioned at one side of the length center line of the tip plate, the seedling pulling wing at one side in the length direction of the seedling pulling is exposed in a gap between the tip plates, and the seedling pulling wing at the other side is always positioned in a projection area of the tip plate in the vertical direction;

a pair of stalk pulling rollers are arranged in gaps between every two adjacent tip plates, the length direction of each stalk pulling roller is consistent with that of each tip plate, the rotating directions of each pair of stalk pulling rollers are opposite, the rotating directions of one opposite sides of each pair of stalk pulling rollers are downward, the tail parts of the stalk pulling rollers are respectively arranged on rotating gears of a gear box, and the head parts of the stalk pulling rollers are fixed on bearing seats which are arranged on one side of the mounting plate and are close to the gaps.

Further, each stalk-pulling roll is a cylinder with a narrow front and a wide rear, and a plurality of guide steel plates are arranged on the outer diameter of the stalk-pulling roll along the length direction.

Further, the upper part at the rear part of the crop divider is also provided with an arc baffle with a downward opening, the middle part of the arc baffle is provided with a chute, and the arc baffle is arranged between the two side plates through a limit screw and adjusts the distance between the bottom of the arc baffle and the crop divider through the chute.

Further, the arc-shaped baffle plate and the throwing device are both fixed at the tail end of an adjusting rod, the bottom of the adjusting rod is hinged to a tail steel plate of the header, and the tail steel plate of the header is connected with the adjusting rod through an oil cylinder;

the tail steel plate is arranged at the rear part between the two side plates and is vertical to the side plates.

Further, the throwing device comprises a rotary roller and a rubber plate obliquely arranged on the outer diameter of the rotary roller, and the opening direction between the rubber plate and the rotary roller is consistent with the rotation direction of the rotary roller.

Further, the mounting panel unsettled installation is in the below of tip board, and the bottom is provided with the deflector, and the end of deflector extends to the clearance between the tip board.

The invention solves the problem that the straw blocks the cutting channel when the sunflower is harvested, reduces equipment faults caused by the blocking of the cutting platform, improves the working efficiency and reduces the labor intensity.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained according to these drawings without invasive effort for a person skilled in the art.

Fig. 1 is a cross-sectional view of a sunflower harvesting header with forced pull-down function according to an embodiment of the present invention;

FIG. 2 is a side view of a sunflower header with forced pull-down function in one embodiment;

figures 3-4 are perspective views of a sunflower header in two different viewing angles in one embodiment;

FIG. 5 is an enlarged view of a portion of FIG. 4;

FIG. 6 is a schematic view of a reel chain in an embodiment;

FIGS. 7-8 are schematic diagrams of a stalk roll, according to one embodiment;

fig. 9 is a schematic diagram of a throwing device in an embodiment.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the invention.

In order to provide a thorough understanding of the present invention, detailed steps and detailed structures will be presented in the following description in order to explain the technical solution of the present invention. Preferred embodiments of the present invention are described in detail below, however, the present invention may have other embodiments in addition to these detailed descriptions.

The invention provides a sunflower harvesting table with a forced pull-down function, a divider is arranged between side plates at two sides of the front end of the harvesting table, the divider consists of a plurality of tip plates 2 distributed in a comb shape, a rotary cutter 5 is arranged above the rear end of the divider, a throwing device 7 is arranged above the rotary cutter 5, an auger 8 is arranged behind the throwing device 7,

a mounting plate 3c with the length direction consistent with that of the tip plate 2 is arranged below each tip plate 2, driving sprockets are arranged at the front end and the rear end of each mounting plate 3c, a seedling pulling chain 3 is arranged on the top surface of each mounting plate 3c, the seedling pulling chains 3 are meshed with the driving sprockets at the front end and the rear end of each mounting plate 3c so as to do circumferential movement along the outer contour of the mounting plate 3c, pulling wings 3a are arranged at a certain distance on the extension of the seedling pulling chains 3, the mounting plates 3c are positioned on one side of the length center line of the tip plate 2, the pulling wings 3a on one side in the length direction of the seedling pulling chains 3 are exposed in a gap between the tip plates 2, and the pulling wings 3a on the other side are always positioned in a projection area of the tip plate 2 in the vertical direction;

a pair of stalk rolls 4 are arranged in gaps between every two adjacent tip boards 2, the length direction of each stalk roll 4 is consistent with that of each tip board 2, the rotation direction of each pair of stalk rolls 4 is opposite, the rotation direction of one side of each pair of stalk rolls 4 is downward, the tail parts of the stalk rolls 4 are respectively arranged on rotating gears of a gear box 6, and the head parts of the stalk rolls 4 are fixed on bearing seats 4a which are arranged on one side of a mounting plate 3c and are close to the gaps. The bearing housing 4a is fixed to one side of the mounting plate 3c by an adjusting bolt 4c, and the distance between each pair of stalk rolls 4 can be adjusted.

In an alternative embodiment of the present invention, as shown in fig. 7-8, each stalk-pulling roll 4 is in a shape of a cylinder with a narrow front and a wide rear, and a plurality of guiding steel plates 4b are mounted on the outer diameter of the stalk-pulling roll 4 along the length direction, so that sunflower stalks can be better conveyed to the rear of the crop divider.

In an alternative embodiment of the invention, an arc baffle plate 9 with a downward opening is arranged above the rear part of the crop divider, a chute is arranged in the middle of the arc baffle plate 9, and the arc baffle plate 9 is arranged between the two side plates 1 through a limit screw 9a and adjusts the distance between the bottom of the arc baffle plate 9 and the crop divider through the chute.

In an alternative embodiment of the invention, the arc-shaped baffle plate 9 and the throwing device 7 are both fixed at the tail end of an adjusting rod 10, the bottom of the adjusting rod 10 is hinged on a tail steel plate 12 of the header, and the tail steel plate 12 of the header is connected with the adjusting rod 10 through an oil cylinder 11; the tail steel plate 12 is arranged at the rear part between the two side plates and is vertical to the side plates 1, and the height of the tail end of the adjusting rod 10 is adjusted through the oil cylinder 11.

In an alternative embodiment of the present invention, the throwing device 7 includes a rotating roller 7a and a rubber sheet 7b obliquely installed on an outer diameter of the rotating roller 7a, and an opening direction between the rubber sheet 7b and the rotating roller 7a coincides with a rotating direction of the rotating roller as shown in fig. 9.

In an alternative embodiment of the invention, the mounting plate 3c is suspended below the tip plate 2, and the bottom is provided with a guide plate 3d, the end of the guide plate 3d extending towards the gap between the tip plates 2. The guide plate 3d can play a role in guiding the sunflower stalks to the space between each pair of stalk rolls between the gaps of the tip plates.

The header is hung on the host, the host advances in the sunflower field, and when the sunflower straws enter the working range of the header (between the two trays of the crop dividers 2), the sunflower straws move behind the crop dividers 2 under the stirring action of the stirring wings 3a of the crop poking chain 3; in addition, since the crop divider 2 has a pair of stalk rolls 4 in the gap, the stalk rolls 4 press the sunflower stalk downward. Under the double functions of the stalk pulling roller 4 and the stalk pulling chain 3, the sunflower stalk moves backward and simultaneously moves downward, and the stalk reaches the position of the rotary cutter 5 to cut off the stalk, so that the length of the stalk remained in the sunflower disk after cutting is reduced as much as possible. After that, the process is performed. The sunflower discs are thrown in the action area of the throwing roller 7 above the tray divider, the sunflower discs are thrown in the action area of the auger 8 under the action of the throwing roller 7, and materials are conveyed to the whole machine after being collected by the auger. The invention can solve the problem that the straw blocks the cutting channel when the sunflower is harvested, reduce equipment faults caused by the blocking of the cutting channel, improve the working efficiency and reduce the labor intensity.

The preferred embodiments of the present invention have been described above. It is to be understood that the invention is not limited to the specific embodiments described above, wherein devices and structures not described in detail are to be understood as being implemented in a manner common in the art; many possible variations and modifications may be made to the disclosed method and apparatus, or equivalents may be substituted for those set forth herein without departing from the scope of the invention. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A sunflower harvesting table with forced pull-down function, a divider is arranged between side plates at two sides of the front end of the harvesting table, the divider consists of a plurality of tip plates (2) distributed in a comb shape, a rotary cutter (5) is arranged above the rear end of the divider, a throwing device (7) is arranged above the rotary cutter (5), an auger (8) is arranged behind the throwing device (7), and the sunflower harvesting table is characterized in that,

a mounting plate (3 c) with the length direction consistent with the length direction of each tip plate (2) is arranged below each tip plate (2), driving sprockets are arranged at the front end and the rear end of each mounting plate (3 c), a reel chain (3) is arranged on the top surface of each mounting plate (3 c), the reel chain (3) is meshed with the driving sprockets at the front end and the rear end of each mounting plate (3 c) so as to circumferentially move along the outer contour of each mounting plate (3 c), a reel wing (3 a) is arranged at a certain distance in the extension of the reel chain (3), the mounting plates (3 c) are positioned at one side of the length center line of each tip plate (2), one reel wing (3 a) at one side in the length direction of the reel chain (3) is exposed in a gap between the tip plates (2), and the reel wings (3 a) at the other side are always positioned in a projection area of the tip plates (2) in the vertical direction;

a pair of stalk pulling rollers (4) are arranged in gaps between the adjacent 2 tip plates (2), the length direction of each stalk pulling roller (4) is consistent with that of each tip plate (2), the rotating directions of each pair of stalk pulling rollers (4) are opposite, the rotating directions of one opposite sides of each pair of stalk pulling rollers (4) are downward, the tail parts of the stalk pulling rollers (4) are respectively arranged on rotating gears of a gear box (6), the head parts are fixed on bearing seats (4 a) arranged on one side close to the gaps of a mounting plate (3 c), each stalk pulling roller (4) is in a cylinder shape with narrow front and wide back, and a plurality of guide steel plates (4 b) are arranged on the outer diameters of the stalk pulling rollers (4) along the length direction;

the upper part of the rear part of the grain divider is also provided with an arc baffle plate (9) with a downward opening, the middle part of the arc baffle plate (9) is provided with a chute, and the arc baffle plate (9) is arranged between the two side plates (1) through a limit screw (9 a) and adjusts the distance between the bottom of the arc baffle plate (9) and the grain divider through the chute.

2. Sunflower harvesting platform with forced pull-down function according to claim 1, characterized in that the arc baffle (9) and the throwing device (7) are both fixed at the end of an adjusting rod (10), the bottom of the adjusting rod (10) is hinged on the tail steel plate of the harvesting platform, and the tail steel plate (12) of the harvesting platform is connected with the adjusting rod (10) through an oil cylinder (11);

the tail steel plate (12) is arranged at the rear part between the two side plates and is vertical to the side plates (1).

3. Sunflower harvesting head with forced pull-down function according to claim 1, wherein the throwing means (7) comprises a rotating roller (7 a) and a rubber plate (7 b) mounted obliquely on the outer diameter of the rotating roller (7 a), the opening direction between the rubber plate and the rotating roller being identical to the rotation direction of the rotating roller.

4. Sunflower harvesting header with forced pull-down function according to claim 1, wherein the mounting plate (3 c) is suspended below the tip plates (2), and the bottom is provided with guide plates (3 d), the ends of the guide plates (3 d) extending towards the gaps between the tip plates (2).