阅读说明：本技术 一种排草机构、穗茎兼收割台及玉米收获机 (Grass discharging mechanism, spike and stem header and corn harvester ) 是由 张明源 宋玉兵 王岩亮 刘静 赵凯隆 齐广敏 刘娜 于 2020-12-16 设计创作，主要内容包括：本发明涉及一种排草机构、穗茎兼收割台及玉米收获机,排草机构包括排草搅龙,排草搅龙包括搅龙轴和多段搅龙叶片,每段搅龙叶片均螺旋固定于搅龙轴的外壁,多段搅龙叶片间隔设置,并分别用于将杂草向搅龙叶片任意一端输送。有益效果是：搅龙叶片为多段且间隔设置,一个搅龙叶片处的杂草由相应搅龙叶片输送至任一端后,在两段搅龙叶片中间的位置,杂草在重力作用下下落,不会沿排草搅龙移动至下一个杂草进入处,从而有效避免了杂草在排草搅龙堆积堵塞。(The invention relates to a grass discharging mechanism, a spike-stalk harvesting platform and a corn harvester. The beneficial effects are that: the screw feeder blade is the multistage and interval sets up, and the weeds of a screw feeder blade department are carried to arbitrary end back by corresponding screw feeder blade, and in the position in the middle of two sections screw feeder blades, weeds fall under the action of gravity, can not remove to next weeds entering department along the row grass screw feeder to weeds have effectively been avoided piling up the jam at the row grass screw feeder.)

1. The utility model provides a grass discharging mechanism, includes grass discharging screw feeder (2), its characterized in that, grass discharging screw feeder (2) are including screw feeder axle (21) and multistage screw feeder blade (22), every section equal spiral of screw feeder blade (22) is fixed in the outer wall of screw feeder axle (21), the multistage screw feeder blade (22) interval sets up to be used for respectively with weeds to screw feeder blade (22) arbitrary one end is carried.

2. A grass discharge mechanism according to claim 1, characterised in that the auger blades (22) on the auger shaft (21) are divided into left and right groups with opposite helical directions.

3. A grass discharge mechanism according to claim 2, characterised in that the two sets of auger blades (22) are symmetrically arranged.

4. The grass discharging mechanism according to claim 2, characterized in that a gap is reserved between two sections of the auger blades (22) close to the left end and the right end of the auger shaft (21) and the corresponding end of the auger shaft (21), and the two sections of the auger blades (22) convey weeds in a direction close to the corresponding end of the auger shaft (21).

5. A grass discharge mechanism according to claim 1, characterised in that a reinforcing rib is fixed to the edge of each section of said auger blade (22) and is helically arranged along the edge.

6. The grass discharging mechanism according to claim 1, characterized in that a poking wheel (3) is arranged in front of the grass discharging auger (2), and the upper end of the poking wheel (3) rotates backwards to poke weeds to the grass discharging auger (2).

7. The grass discharging mechanism according to claim 6, wherein the dial wheel (3) comprises a dial wheel shaft (31) and a plurality of dial wheel blades (32), the dial wheel blades (32) extend along the axial direction of the dial wheel shaft (31) and are fixedly connected with the dial wheel shaft (31), and the plurality of dial wheel blades (32) are uniformly arranged along the circumferential direction of the dial wheel shaft (31); the thumb wheel blade (32) is arranged obliquely against the direction of rotation of the thumb wheel (3).

8. A grass discharge mechanism according to claim 1, characterised in that the auger blades (22) on the auger shaft (21) have the same helical direction.

9. The ear and stem header comprises a cutter (1) and a plurality of feeding channels, and is characterized by further comprising the grass discharge mechanism of any one of claims 1 to 8, wherein the grass discharge mechanism is arranged behind the cutter (1), and a plurality of sections of auger blades (22) are arranged below the feeding channels in a one-to-one correspondence manner.

10. A corn harvester comprising the ear and stalk header of claim 9.

Technical Field

The invention relates to the field of agricultural machinery, in particular to a grass discharging mechanism, a spike and stem header and a corn harvester.

Background

The header is a mechanism which is used for cutting crops and feeding the crops backwards at the front end of the harvester. For the maize picker, after the maize crop got into the feed channel of header, the crop lower part was cut off by the cutterbar of header lower part, and the crop was followed feed channel and is followed the backward feeding, and the ear of grain and stalk separation when picking the ear roller, the ear of grain dropped to the ear of grain conveyer belt, and the stalk continues to carry backward to stalk reducing mechanism, and wherein, ear of grain conveyer belt front side is equipped with preceding baffle, and a plurality of feeding breachs have been seted up to preceding baffle, and the stalk lower extreme is through corresponding feeding breach and backward feeding.

In the existing ear-stalk harvesting header, the distance between the cutter and the grass discharging auger is large, after the stalks are cut off, the upper parts of the stalks are pushed by the stalk shifting chain to move backwards, in the process, the stalks are only stressed backwards at the parts contacting with the stalk shifting chain, and when the bottoms of the stalks contact with the grass discharging auger rotating forwards, a forward reaction force is generated, so that the stalks are easily pulled off. Particularly, the front section of the existing vertical roller type header is not provided with a grass discharging auger, so that weeds connected with the bottoms of the stalks enter the feeding notch after the stalks are cut off, and the feeding notch is easily blocked by the weeds.

The grass discharging auger in the existing header is only an auger with continuous helical blades, weeds are all conveyed to one end, the grass discharging efficiency is low, and the weeds below a plurality of reel feeding channels are gradually accumulated to one end and are easy to block.

Disclosure of Invention

The invention aims to solve the technical problem of how to improve grass discharging efficiency.

The technical scheme for solving the technical problems is as follows: the utility model provides a grass discharging mechanism, includes the grass discharging screw feeder, the grass discharging screw feeder includes screw feeder axle and multistage screw feeder blade, every section the equal spiral fixation of screw feeder blade in the outer wall of screw feeder axle, the multistage screw feeder blade interval sets up to be used for respectively with weeds to the arbitrary one end of screw feeder blade is carried.

The invention has the beneficial effects that: the auger blade with the spiral at the weed entering position can push weeds to any end, so that the weeds are prevented from being gradually accumulated in the process of conveying along the weed discharging auger. If continuous screw conveyor blades are adopted, a plurality of weeds are conveyed to one end by the screw conveyor, new weeds continuously enter the grass discharging screw conveyor in the conveying process of the weeds, and more weeds need to be conveyed by the screw conveyor blades, so that accumulation can be formed. The auger blades are arranged at intervals in multiple sections, weeds at one auger blade fall under the action of gravity at the position between the two auger blades after being conveyed to any end by the corresponding auger blade, and the weeds cannot move to the next weed entering position along the grass discharge auger, so that the stacking and blocking of the weeds at the grass discharge auger are effectively avoided.

On the basis of the technical scheme, the invention can be further improved as follows.

Further, the auger blades on the auger shaft are divided into a left group and a right group, and the spiral directions are opposite.

The beneficial effect of adopting the further scheme is that: avoid weeds to all carry to row grass screw feeder one end, reduce weeds and pile up.

Further, two sets of screw feeder blades are symmetrical.

The beneficial effect of adopting the further scheme is that: the grass discharge is uniform.

Furthermore, be close to two sections at auger shaft left and right sides both ends the auger blade with leave the clearance between the auger shaft corresponds the tip, and the multistage the auger blade is with weeds to being close to the direction that the auger shaft corresponds the tip is carried.

The beneficial effect of adopting the further scheme is that: weeds are respectively conveyed to two ends of the auger shaft, so that the weeds are more dispersed, and are prevented from being gathered in the middle of the auger shaft.

Furthermore, the edge of each section of the screw blade is also fixed with a reinforcing rib spirally arranged along the edge.

The beneficial effect of adopting the further scheme is that: the strength of the auger blades is increased, so that the grass discharging effect is increased.

Furthermore, a poking wheel is arranged in front of the grass discharging auger, and the upper end of the poking wheel rotates backwards and is used for poking weeds to the grass discharging auger.

The beneficial effect of adopting the further scheme is that: after the cutter cuts the stalks, weeds at the lower parts of the stalks are pushed to a position between the poking wheel and the grass discharging auger by the poking wheel, so that the problem that the stalks are broken by a forward reaction force generated when the bottoms of the stalks contact with the grass discharging auger rotating forwards is effectively solved.

Further, the dial wheel comprises a dial wheel shaft and a plurality of dial wheel blades, the dial wheel blades extend along the axial direction of the dial wheel shaft and are fixedly connected with the dial wheel shaft, and the dial wheel blades are uniformly arranged along the circumferential direction of the dial wheel shaft and are fixedly connected.

The beneficial effect of adopting the further scheme is that: the setting of a plurality of thumb wheel blades is high in poking efficiency.

Further, the thumb wheel blade is arranged obliquely against the direction of rotation of the thumb wheel.

The beneficial effect of adopting the further scheme is that: the poking wheel pokes and sends weeds to the grass discharging auger, and the blades of the poking wheel are inclined, so that the weeds can be prevented from being brought back to the cutter along with the blades of the poking wheel.

Alternatively, the screw blade spiral directions of the multiple sections on the screw shaft are the same.

The beneficial effect of adopting the further scheme is that: weeds enter the impurity removing auger to be conveyed in the same direction, and smoothness of grass removal is guaranteed.

The invention also provides a spike-stalk harvesting platform, which comprises a cutter, a plurality of feeding channels and a grass discharging mechanism, wherein the grass discharging mechanism is arranged behind the cutter, and a plurality of sections of auger blades are correspondingly arranged below the feeding channels one by one.

The spike-stalk harvesting platform is a vertical roller type cutting platform or a horizontal roller type cutting platform, particularly, the existing vertical roller type cutting platform can be prevented from entering a feeding notch after a grass discharge mechanism is additionally arranged, and the situation that the feeding notch is blocked by weeds or wound on a vertical spike picking roller is effectively avoided.

The beneficial effects are that: stalks are fed into the header along the feeding channel, the position of the feeding channel is the position with a large number of weeds, and the auger blades arranged at the feeding channel can push the weeds to the side direction, so that the weeds are prevented from being accumulated at the position corresponding to the feeding channel.

The invention also provides a corn harvester which comprises the ear-stem harvesting platform.

Drawings

FIG. 1 is a view showing the construction of a weed discharging auger according to the present invention;

FIG. 2 is a top view of the grass discharge mechanism of the present invention;

FIG. 3 is a side view of the ear and stalk header of the present invention;

FIG. 4 is a top view of the ear and stalk header of the present invention;

fig. 5 is a front view of the ear and stalk harvesting header of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. the device comprises a cutter, 2, a grass discharging auger, 21, an auger shaft, 22, auger blades, 3, a shifting wheel, 31, a shifting wheel shaft, 32, shifting wheel blades, 4, a reel chain, 5 and a snapping platform.

Detailed Description

The principles and features of this invention are described below in conjunction with examples which are set forth to illustrate, but are not to be construed to limit the scope of the invention.

As shown in fig. 1-5, this embodiment provides a grass discharging mechanism, including grass discharging screw 2, grass discharging screw 2 includes screw shaft 21 and multistage screw blade 22, every section screw blade 22 all the spiral be fixed in the outer wall of screw shaft 21, the multistage screw blade 22 interval sets up to be used for respectively with weeds to screw blade 22 arbitrary end is carried.

In one specific embodiment, as shown in fig. 4 and 5, a cutter 1 is provided on the header, a plurality of reel chains 4 are provided above the cutter 1, and the reel chains 4 form a feeding channel in pairs. Stalks are fed into the header along the feeding channel, the position of the feeding channel is the position with a large number of weeds, and the auger blades 22 arranged at the position of the feeding channel can push the weeds to the side direction, so that the weeds are prevented from being accumulated at the position corresponding to the feeding channel. The screw feeder blade 22 is the multistage and the interval sets up, and the weeds of a feeding channel department are carried to one side back by screw feeder blade 22, and the whereabouts under the action of gravity can not remove to another feeding channel along row grass screw feeder 2 to effectively avoided weeds to pile up the jam in row grass screw feeder 2 department.

Wherein, concretely, the grass discharging auger 2 is rotatably arranged on the ear picking rack 5 through a bearing.

Wherein, each section of the screw blade 22 is correspondingly arranged below the feeding channel formed by the corresponding group of the reel chains 4.

In any of the above embodiments, preferably, the auger blades 22 on the auger shaft 21 are divided into two groups, i.e., left and right, and the spiral directions are opposite.

Wherein the number of segments of the two sets of auger blades 22 may be the same, for example, each set is 2 segments of auger blades 22; or the two sets of auger blades 22 have different numbers of segments, for example, one set is a 3-segment auger blade 22, the other set is a 2-segment auger blade 22, and for example, one set is a 3-segment auger blade 22, and the other set is a 1-segment auger blade 22. The number of auger blades 22 can be flexibly adjusted.

Thus, weeds are prevented from being conveyed to one end of the grass discharging auger 2, and accumulation of the weeds is reduced.

In any of the above embodiments, preferably, the two sets of auger blades 22 are symmetrically arranged.

If the auger blades 22 are even-numbered sections, the number of the sections of the auger blades 22 in the left and right groups in the middle of the auger shaft 21 is the same, the spiral directions of the auger blades 22 in the left group are the same, the spiral directions of the auger blades 22 in the right group are the same, and the spiral directions of the auger blades 22 in the left and right groups are opposite. If the auger blades 22 are odd-numbered, the auger blade 22 in the middle of the auger shaft 21 and the auger blade 22 on one side have the same spiral direction, and the auger blades 22 on the left and right sides in the middle have opposite spiral directions, that is, the number of the two sets of auger blades 22 differs by only 1.

In any of the above embodiments, preferably, a gap is left between two sections of the auger blades 22 close to the left and right ends of the auger shaft 21 and the corresponding end of the auger shaft 21, and the multiple sections of the auger blades 22 convey the weeds in the direction close to the corresponding end of the auger shaft 21.

In one embodiment, as shown in fig. 3, the upper end of the auger shaft 21 rotates forward, the screw direction of the auger blade 22 on the left side of the auger shaft 21 is right-handed, and the screw direction of the auger blade 22 on the right side of the auger shaft 21 is left-handed. As shown in fig. 2 and 3, in the forward rotation process of the auger shaft 21, the left auger blade 22 pushes weeds leftwards, the right auger blade 22 pushes rightwards, the weeds are pushed to the auger shaft 21 without the auger blade 22, and the weeds fall out of the header downwards under the action of gravity. Thus, weeds are respectively conveyed and discharged to the two sides of the grass discharging auger, and the accumulation of weeds in the middle of the grass discharging auger is avoided.

In any of the above embodiments, preferably, a reinforcing rib spirally arranged along the edge is further fixed at the edge of each section of the auger blade 22.

Specifically, the reinforcing rib is a spiral rod with the same pitch and the same spiral diameter as the edge of the auger blade 22, and preferably, the reinforcing rib can be made of a steel bar. Thus, the strength of the auger blades is increased, thereby increasing the grass discharge effect.

In any of the above embodiments, preferably, a poking wheel 3 is further arranged in front of the grass discharging auger 2, and the upper end of the poking wheel 3 rotates backwards to poke weeds to the grass discharging auger 2.

After the cutter cuts the stalks, weeds at the lower parts of the stalks are pushed to a position between the poking wheel and the grass discharging auger by the poking wheel, so that the problem that the stalks are broken by a forward reaction force generated when the bottoms of the stalks contact with the grass discharging auger rotating forwards is effectively solved. The grass discharging auger 2 and the thumb wheel 3 rotate in opposite directions. Weeds fall downwards between the grass discharging auger and the poking wheel, and weeds in subsequent devices are reduced.

Specifically, the poking wheel 3 is rotatably arranged on the ear picking rack 5 through a bearing.

In any of the above embodiments, preferably, the dial wheel 3 includes a dial wheel shaft 31 and a plurality of dial wheel blades 32, the dial wheel blades 32 extend along an axial direction of the dial wheel shaft 31 and are fixedly connected to the dial wheel shaft 31, and the plurality of dial wheel blades 32 are uniformly arranged along a circumferential direction of the dial wheel shaft 31.

Specifically, as shown in fig. 2 to 3, each of the thumb wheel blades 32 has a rectangular plate shape, and one side in the width direction thereof is fixed to the thumb wheel shaft 31.

In any of the above embodiments, it is preferable that the wheel blade 32 is disposed obliquely against the rotation direction of the wheel 3, as shown in fig. 3.

The poking wheel pokes and sends weeds to the grass discharging auger, and the blades of the poking wheel are inclined, so that the weeds can be prevented from being brought back to the cutter along with the blades of the poking wheel.

In any of the above embodiments, preferably, a thumb wheel reinforcing rib is further added at a connection position of each thumb wheel blade 32 and the thumb wheel shaft 31.

As a modification, the screw direction of the auger blades 22 is the same.

This embodiment still provides a spike stalk header concurrently, including cutterbar 1 and a plurality of feeding passageway, still include grass discharging mechanism, grass discharging mechanism sets up the rear of cutterbar 1, the multistage screw feeder blade 22 one-to-one is in a plurality of feeding passageway's below.

The spike stalk header is a vertical roller header or a horizontal roller header, and particularly, the existing vertical roller header can be prevented from entering a feeding notch after a grass discharge mechanism is additionally arranged, so that weeds are effectively prevented from being wound on a vertical snapping roll.

For the vertical roller type header, the stems enter the feeding channel and are cut off by the cutter 1, the stems move backwards under the action of the reel chain 4, weeds at the lower parts of the stems are conveyed to the weed discharging auger 2 by the reel 3, the weeds below each feeding channel are pushed to the two sides of the header by the weed discharging auger 2, and the weeds fall from the space between the auger blades 22 at the two adjacent ends, so that the blockage caused by stacking of the weeds is avoided. The stalks are plucked by the vertical plucking roller along with the reel chain 4, the ears fall into the lower conveyer belt and are conveyed to one side of the header, and the stalks are fed backwards by the plucking roller.

The embodiment also provides a corn harvester, which comprises the ear-stem header.

In the description of the present invention, it should be noted that the terms "front", "rear", "left" and "right" refer to the front, rear, left and right of the grass discharging mechanism, the ear and stalk header and the corn harvester in the traveling direction during operation. The terms "central," "longitudinal," "lateral," "length," "width," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for the convenience and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.