阅读说明：本技术 一种穗茎兼收玉米收获机茎秆喂入装置 (Stalk feeding device of corn harvester capable of harvesting ears and stalks ) 是由 丁世立 张林强 张福成 徐双喜 梁雪 于 2020-03-26 设计创作，主要内容包括：本发明涉及一种穗茎兼收玉米收获机茎秆喂入装置,包括喂入壳体,壳体内上部由输入端至输出端方向依次设有第一上喂入辊、第二上喂入辊和第三上喂入辊,下部一一对应设有第一下喂入辊、第二下喂入辊和第三下喂入辊；三个下喂入辊通过各自辊轴可转动式支撑在壳体两侧侧壁上；壳体两侧壁外对称设有支撑臂；三个上喂入辊各自辊轴的两端分别穿出两侧侧壁、并分别可转动式支撑于对应侧的支撑臂上；两侧支撑臂位于第三上喂入辊的上后方转动连接有旋转中心轴；两侧支撑臂下方位于第二和第三上喂入辊安装位置之间设有主弹性张紧装置,两侧支撑臂下方位于第一上喂入辊安装位置前方设有辅助弹性张紧装置。本发明提高了茎秆梳理的一致性和茎秆输送的顺畅性、达到了较好的镇压效果。(The invention relates to a stalk feeding device of a corn harvester capable of harvesting ears and stalks, which comprises a feeding shell, wherein a first upper feeding roller, a second upper feeding roller and a third upper feeding roller are sequentially arranged at the upper part in the shell from an input end to an output end, and a first lower feeding roller, a second lower feeding roller and a third lower feeding roller are correspondingly arranged at the lower part one by one; the three lower feeding rollers are rotatably supported on the side walls at the two sides of the shell through respective roller shafts; the two side walls of the shell are externally and symmetrically provided with supporting arms; two ends of the respective roll shafts of the three upper feeding rolls respectively penetrate through the side walls at two sides and are respectively rotatably supported on the supporting arms at the corresponding sides; the two side supporting arms are positioned at the upper rear part of the third upper feeding roller and are rotationally connected with a rotating central shaft; a main elastic tensioning device is arranged between the second upper feeding roller mounting position and the third upper feeding roller mounting position below the two side supporting arms, and an auxiliary elastic tensioning device is arranged in front of the first upper feeding roller mounting position below the two side supporting arms. The invention improves the consistency of stalk carding and the smoothness of stalk conveying, and achieves better compacting effect.)

1. The utility model provides a maize picker stalk feeding device is received concurrently to ear stem which characterized in that: the straw feeding device comprises a feeding shell, wherein the front end of the feeding shell is a straw feeding end, and the rear end of the feeding shell is a straw output end; a first upper feeding roller, a second upper feeding roller and a third upper feeding roller are sequentially arranged at the upper position in the feeding shell from the input end to the output end, a first lower feeding roller, a second lower feeding roller and a third lower feeding roller are sequentially arranged at the lower position in the feeding shell from the input end to the output end, and the first upper feeding roller and the first lower feeding roller, the second upper feeding roller and the second lower feeding roller, and the third upper feeding roller and the third lower feeding roller are respectively and correspondingly matched up and down;

the first upper feeding roller and the first lower feeding roller are toothed rollers with carding teeth uniformly distributed on the surface circumference, the second upper feeding roller is a toothed roller with carding teeth uniformly distributed on the surface circumference, the second lower feeding roller is a smooth roller or a grooved roller with grooves uniformly distributed on the surface circumference, the third upper feeding roller is a toothed roller with carding teeth uniformly distributed on the surface circumference, and the third lower feeding roller is a smooth roller or a grooved roller with grooves uniformly distributed on the surface circumference;

the first lower feeding roller, the second lower feeding roller and the third lower feeding roller are rotatably supported between the side walls of the two sides of the feeding shell through respective roller shafts, and the three lower feeding rollers form a fixed feeding roller combination;

swingable supporting arms are symmetrically arranged outside the side walls at the two sides of the feeding shell; the two end parts of the respective roll shafts of the first upper feeding roll, the second upper feeding roll and the third upper feeding roll respectively penetrate through the side walls at two sides of the feeding shell and are respectively rotatably supported on the supporting arms at the corresponding sides, so that the three upper feeding rolls form a floating type feeding roll combination;

the two side supporting arms are positioned at the upper rear part of the third upper feeding roller and are rotationally connected with a rotating central shaft, and two ends of the rotating central shaft are respectively fixed on two side shaft seat plates fixedly connected with the front end of the frame body of the shredding mechanism;

a main elastic tensioning device for applying the downward pulling force to the supporting arms is arranged between the mounting positions of the second upper feeding roller and the third upper feeding roller below the supporting arms at the two sides, and an auxiliary elastic tensioning device for applying the downward pulling force to the supporting arms is arranged in front of the mounting position of the first upper feeding roller below the supporting arms at the two sides;

one end of a roll shaft of the first upper feeding roll and one end of a roll shaft on the same side of the first lower feeding roll are respectively provided with a power input structure, and the roll shaft of the first upper feeding roll, the roll shaft of the second upper feeding roll and the roll shaft of the third upper feeding roll are connected through a connecting structure of a chain wheel and a chain in sequence; the roll shaft of the first lower feeding roller, the roll shaft of the second lower feeding roller and the roll shaft of the third lower feeding roller are connected through a connecting structure of a chain wheel and a chain in sequence.

2. The stalk feeding device of the corn harvester for both ear and stalk according to claim 1, characterized in that: the main elastic tensioning device comprises a main tension spring and a pull rope, the main tension spring is arranged in a front-back manner, a front connecting seat and a rear connecting seat are respectively arranged at the front end and the rear end of the main tension spring to form an assembly body, and the front connecting seat is fixedly connected with the side wall of the feeding shell; and a rope winding wheel is arranged below the second lower feeding roller outside the side wall of the feeding shell, the pulling rope is wound and leaned on the rope winding wheel, the front lower end of the pulling rope is connected with the rear connecting seat, the rear upper end of the pulling rope is connected with the swinging arm, and the connecting point is arranged between the mounting positions of the second upper feeding roller and the third upper feeding roller.

3. The stalk feeding device of the corn harvester for both ear and stalk according to claim 1, characterized in that: the auxiliary elastic tensioning device comprises an auxiliary tension spring which is arranged up and down, the upper end and the lower end of the auxiliary tension spring are respectively connected with an upper connecting seat and a lower connecting seat, the upper connecting seat is fixed at a position close to the front end on the supporting arm, and the lower connecting seat is fixedly connected with the side wall of the feeding shell.

Technical Field

The invention belongs to the technical field of corn harvesters, and particularly relates to a stalk feeding device of a corn harvester capable of harvesting ears and stalks.

Background

The corn harvester is a mechanical device for simultaneously realizing ear picking and stalk chopping recovery, and the working process is as follows: the harvester runs along the advancing direction, the stalk is pushed backwards by the stalk pushing chain of the upper header, and under the combined action of the stalk pulling roller and the ear picking plate, the picking of the ears of the upper header and the pulling of the stalk into the lower header are realized; when the stalks are pulled, the stalk cutting mechanism of the lower cutting platform cuts off the stalks. The fruit ears are intensively conveyed into the elevator by the conveying auger and then into the peeling machine by the elevator, and are thrown into a grain bin after being peeled; the stalks are cut off and pulled by the header, then are pushed by the conveying auger to enter the shredding mechanism through the feeding mechanism in the lower collection to complete stalk shredding, and are thrown into the receiving vehicle through the throwing mechanism under the acceleration action of the acceleration mechanism, so that the simultaneous harvesting of the clusters and the stalks is realized. The residual stalk roots on the ground and the stripped bracts of the ears are crushed by a stalk crusher. In the process of harvesting operation of the harvester, the feeding mechanism is a transition structure for connecting the conveying auger and the stalk chopping mechanism, and the feeding mechanism is used for combing stalks conveyed by the conveying auger in a centralized manner to ensure that the stalks enter the subsequent chopping mechanism in a smoother manner. Most stalk feeding mechanism on the current maize picker is received to ear stem concurrently only adopts a set of or two group's suppression, and the passageway width is not enough, has carding uniformity poor, suppression not compact, carries the poor not enough of smoothness nature in the course of the work.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides the stalk feeding device of the ear-stalk and stalk-harvesting corn harvester, which can improve the stalk carding consistency and the stalk conveying smoothness and achieve a better compacting effect.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a maize picker stalk feeding device is received concurrently to ear stem which characterized in that: the straw feeding device comprises a feeding shell, wherein the front end of the feeding shell is a straw feeding end, and the rear end of the feeding shell is a straw output end; a first upper feeding roller, a second upper feeding roller and a third upper feeding roller are sequentially arranged at the upper position in the feeding shell from the input end to the output end, a first lower feeding roller, a second lower feeding roller and a third lower feeding roller are sequentially arranged at the lower position in the feeding shell from the input end to the output end, and the first upper feeding roller and the first lower feeding roller, the second upper feeding roller and the second lower feeding roller, and the third upper feeding roller and the third lower feeding roller are respectively and correspondingly matched up and down;

the first upper feeding roller and the first lower feeding roller are toothed rollers with carding teeth uniformly distributed on the surface circumference, the second upper feeding roller is a toothed roller with carding teeth uniformly distributed on the surface circumference, the second lower feeding roller is a smooth roller or a grooved roller with grooves uniformly distributed on the surface circumference, the third upper feeding roller is a toothed roller with carding teeth uniformly distributed on the surface circumference, and the third lower feeding roller is a smooth roller or a grooved roller with grooves uniformly distributed on the surface circumference;

the first lower feeding roller, the second lower feeding roller and the third lower feeding roller are rotatably supported between the side walls of the two sides of the feeding shell through respective roller shafts, and the three lower feeding rollers form a fixed feeding roller combination;

swingable supporting arms are symmetrically arranged outside the side walls at the two sides of the feeding shell; the two end parts of the respective roll shafts of the first upper feeding roll, the second upper feeding roll and the third upper feeding roll respectively penetrate through the side walls at two sides of the feeding shell and are respectively rotatably supported on the supporting arms at the corresponding sides, so that the three upper feeding rolls form a floating type feeding roll combination;

the two side supporting arms are positioned at the upper rear part of the third upper feeding roller and are rotationally connected with a rotating central shaft, and two ends of the rotating central shaft are respectively fixed on two side shaft seat plates fixedly connected with the front end of the frame body of the shredding mechanism;

a main elastic tensioning device for applying the downward pulling force to the supporting arms is arranged between the mounting positions of the second upper feeding roller and the third upper feeding roller below the supporting arms at the two sides, and an auxiliary elastic tensioning device for applying the downward pulling force to the supporting arms is arranged in front of the mounting position of the first upper feeding roller below the supporting arms at the two sides;

one end of a roll shaft of the first upper feeding roll and one end of a roll shaft on the same side of the first lower feeding roll are respectively provided with a power input structure, and the roll shaft of the first upper feeding roll, the roll shaft of the second upper feeding roll and the roll shaft of the third upper feeding roll are connected through a connecting structure of a chain wheel and a chain in sequence; the roll shaft of the first lower feeding roller, the roll shaft of the second lower feeding roller and the roll shaft of the third lower feeding roller are connected through a connecting structure of a chain wheel and a chain in sequence.

Further: the main elastic tensioning device comprises a main tension spring and a pull rope, the main tension spring is arranged in a front-back manner, a front connecting seat and a rear connecting seat are respectively arranged at the front end and the rear end of the main tension spring to form an assembly body, and the front connecting seat is fixedly connected with the side wall of the feeding shell; and a rope winding wheel is arranged below the second lower feeding roller outside the side wall of the feeding shell, the pulling rope is wound and leaned on the rope winding wheel, the front lower end of the pulling rope is connected with the rear connecting seat, the rear upper end of the pulling rope is connected with the swinging arm, and the connecting point is arranged between the mounting positions of the second upper feeding roller and the third upper feeding roller.

Further: the auxiliary elastic tensioning device comprises an auxiliary tension spring which is arranged up and down, the upper end and the lower end of the auxiliary tension spring are respectively connected with an upper connecting seat and a lower connecting seat, the upper connecting seat is fixed at a position close to the front end on the supporting arm, and the lower connecting seat is fixedly connected with the side wall of the feeding shell.

The invention has the advantages and positive effects that:

1. the invention adopts three upper feeding rollers arranged in front and back and three lower feeding rollers arranged in front and back, the first upper feeding roller and the first lower feeding roller are matched to form a first group of feeding rollers, and the group of feeding rollers grab straws, carding sequence and realize preliminary pressing; the feeding roller is gone up with the cooperation of feeding roller down with the second to form a second group of feeding roller, and this group of feeding roller realizes that the secondary is combed and the secondary is suppressed to the straw, and two sets of feeding rollers are combed before, and the straw has reached better reason effect in the same direction as, and feeding roller and the cooperation of feeding roller down are gone up to the third, form the feeding roller of third group, and this group of feeding roller is final to suppress the straw and carry to the comminution device.

2. According to the invention, the main elastic tensioning device is arranged between the second group of feeding rollers and the third group of feeding rollers, and the structure of the three groups of feeding rollers is combined, so that the feeding process of carding firstly and pressing step by step is realized, the pressing of the stalks is mainly arranged in the feeding process of the rear section, the structural design is reasonable, the consistency of stalk carding and the smoothness of stalk conveying are improved, and a better pressing effect is achieved.

Drawings

FIG. 1 is a schematic plan view of the present invention (with the transmission section removed);

FIG. 2 is a schematic structural view of the belt drive portion of FIG. 1;

FIG. 3 is a schematic perspective view of the present invention;

FIG. 4 is a schematic view showing the construction of a first upper feed roller according to the present invention;

FIG. 5 is a schematic view showing the structure of a second upper feed roller according to the present invention;

FIG. 6 is a schematic view showing the structure of a third upper feeding roller of the present invention;

FIG. 7 is a schematic view showing the structure of a first lower feed roller of the present invention;

FIG. 8 is a schematic view of the structure of the second/third lower feeding roller as a smooth roller.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments, which are illustrative only and not limiting, and the scope of the present invention is not limited thereby.

A stalk feeding device of a corn harvester for harvesting both ears and stalks, please refer to fig. 1-8, the invention point is: the straw feeding device comprises a feeding shell 1, wherein the feeding shell is of a square shell structure with the front end and the rear end being open ends, the front end of the feeding shell is a straw feeding end, and the rear end of the feeding shell is a straw output end. A first upper feeding roller 2, a second upper feeding roller 4 and a third upper feeding roller 5 are sequentially arranged at the upper position in the feeding shell from the input end to the output end, a first lower feeding roller 13, a second lower feeding roller 11 and a third lower feeding roller 8 are sequentially arranged at the lower position in the feeding shell from the input end to the output end, and the first upper feeding roller and the first lower feeding roller, the second upper feeding roller and the second lower feeding roller, and the third upper feeding roller and the third lower feeding roller are respectively and correspondingly matched up and down to form a first group of feeding rollers, a second group of feeding rollers and a third group of feeding rollers.

The first upper feeding roller and the first lower feeding roller are toothed rollers with carding teeth uniformly distributed on the surface circumference, and the tooth shapes of the carding teeth are tooth shapes which are not limited to a sharp angle shape and a flat head shape, and can be arranged in a dense tooth manner or a sparse tooth manner. The feeding roller is a toothed roller with carding teeth uniformly distributed on the surface circumference, and the teeth of the carding teeth are in tooth shapes such as pointed angle shapes, flat head shapes and the like, and can be arranged in dense teeth or sparse teeth. The third upper feeding roller is a toothed roller with carding teeth uniformly distributed on the surface circumference, and the tooth shapes of the carding teeth are tooth shapes such as a sharp angle shape, a flat head shape and the like, and can be arranged by adopting dense teeth or sparse teeth. The second lower feeding roller is a smooth roller or a groove-shaped roller with grooves uniformly distributed on the circumference of the surface, and the third lower feeding roller is a smooth roller or a groove-shaped roller with grooves uniformly distributed on the circumference of the surface.

The first lower feeding roller, the second lower feeding roller and the third lower feeding roller are rotatably supported between the side walls of the two sides of the feeding shell through respective roller shafts, and the three lower feeding rollers form a fixed feeding roller combination. The fixed feeding roller only can rotate around the center of the shaft roller and cannot move up, down, left and right.

The lateral walls of the two sides of the feeding shell are symmetrically provided with a support arm 3 which can swing. Two ends of the respective roll shafts of the first upper feeding roll, the second upper feeding roll and the third upper feeding roll respectively penetrate through the side walls at two sides of the feeding shell and are respectively rotatably supported on the supporting arms at the corresponding sides, so that the three upper feeding rolls form a floating type feeding roll combination. The floating feeding roller can rotate, and in addition, the spatial position can be changed up and down and back and forth along with the swinging of the supporting arm. In the attached figure 1, a front bearing seat shaft is fixedly arranged above the front end part of the supporting arm, and two extending ends of a first upper feeding roller are supported on front bearing seats at two sides through bearings; a middle bearing seat is fixedly arranged on the outer side of the middle part of the supporting arm, and two extending ends of the second upper feeding roller penetrate through the supporting arm and are supported on the middle bearing seats on the two sides through bearings; and a rear bearing seat is fixedly arranged on the outer side of the rear part of the supporting arm, and two extending ends of the third upper feeding roller penetrate through the supporting arm and are supported on the rear bearing seats on two sides through bearings.

The two side supporting arms are positioned at the upper rear part of the third upper feeding roller and are rotatably connected with a rotating central shaft 6, and two ends of the rotating central shaft are respectively fixed on two side shaft seat plates 7 fixedly connected with the front end of the frame body of the shredding mechanism. In the feeding process, the supporting arm takes the rotating central shaft as a rotating center to swing up and down.

And a main elastic tensioning device for applying the downward pulling force to the supporting arms is arranged between the mounting positions of the second upper feeding roller and the third upper feeding roller below the supporting arms at the two sides, and an auxiliary elastic tensioning device for applying the downward pulling force to the supporting arms is arranged in front of the mounting position of the first upper feeding roller below the supporting arms at the two sides. The main elastic tensioning device and the auxiliary elastic tensioning device ensure that the pressing compaction conveying of the stalks is realized.

Power input structures are respectively arranged at one end of a roll shaft of the first upper feeding roll and one end of a roll shaft of the first lower feeding roll, and the power input structures comprise, but are not limited to, chain wheel transmission, belt wheel transmission, direct connection of transmission shafts, motor driving and the like, so that power is input into the feeding device. The roll shaft of the first upper feeding roller, the roll shaft of the second upper feeding roller and the roll shaft of the third upper feeding roller are connected through a connecting structure of a chain wheel and a chain 19 in sequence; the roll shaft of the first lower feeding roller, the roll shaft of the second lower feeding roller and the roll shaft of the third lower feeding roller are connected through a connecting structure of a chain wheel and a chain in sequence.

In the above structure: the main elastic tensioning device comprises a main tension spring 14 and a pull rope 9, and the pull rope is a steel wire rope. The main tension spring is arranged front and back, a front connecting seat 15 and a back connecting seat 12 are respectively arranged at the front end and the back end of the main tension spring to form an assembly body, and the front connecting seat is fixedly connected with the side wall of the feeding shell. And a rope winding wheel 10 is arranged below the second lower feeding roller outside the side wall of the feeding shell, the pulling rope is wound and leaned on the rope winding wheel, the front lower end of the pulling rope is connected with the rear connecting seat, the rear upper end of the pulling rope is connected with the swinging arm, and the connecting point is arranged between the mounting positions of the second upper feeding roller and the third upper feeding roller.

In the above structure: the auxiliary elastic tensioning device comprises an auxiliary tension spring 17 which is arranged up and down, the upper end and the lower end of the auxiliary tension spring are respectively connected with an upper connecting seat 18 and a lower connecting seat 16, the upper connecting seat is fixed on the supporting arm at a position close to the front end, and the lower connecting seat is fixedly connected with the side wall of the feeding shell. In fig. 1, the number of the auxiliary tension springs on each side is 2, but not limited to two.

The operation flow of the stalk feeding device of the corn harvester capable of harvesting ears and stalks comprises the following steps:

the feeding port of the feeding device is butted with the stalk feeding port of the header, the harvested stalks are firstly carded and sent back by the first group of feeding rollers after entering the feeding device, and are conveyed to the chopping device after being gradually compacted by the second group of feeding rollers and the third group of feeding rollers; in the process, the main elastic rotating shaft and the auxiliary elastic tensioning device provide downward pulling force to form a pressing and compacting effect, and smooth conveying of the stalks is guaranteed.

Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the invention and the appended claims, and therefore the scope of the invention is not limited to the disclosure of the embodiments and the accompanying drawings.