CN211090730U

CN211090730U - Straw feeding device of corn harvester

Info

Publication number: CN211090730U
Application number: CN201822241997.6U
Authority: CN
Inventors: 唐顶仁; 其他发明人请求不公开姓名
Original assignee: Hebei Heshun Machinery Technology Co ltd
Current assignee: Hebei Heshun Machinery Technology Co ltd
Priority date: 2018-12-29
Filing date: 2018-12-29
Publication date: 2020-07-28
Anticipated expiration: 2028-12-29

Abstract

The utility model belongs to the technical field of corn harvesters, and provides a straw feeding device of a corn harvester, which comprises a frame; the lower cutting table is used for cutting off the straws and primarily crushing the straws; the feed inlet of the crushing bin is communicated with the discharge outlet of the lower header, the crushing bin comprises a forced feeding device and a crushing device, the forced feeding device is positioned on the front side of the crushing device, and the forced feeding device is used for conveying straws to the crushing device; throw the material fan, smash the feed inlet intercommunication of storehouse discharge gate and throwing the material fan, through above-mentioned technical scheme, solved among the prior art whole straw lack the centre gripping when getting into reducing mechanism, take place to smash incompletely easily, finally block the phenomenon of dying subsequent throwing the material fan easily.

Description

Straw feeding device of corn harvester

Technical Field

The utility model belongs to the technical field of maize picker, a maize picker straw feeding device is related to.

Background

The corn harvester is an agricultural machine which can complete multiple operations of ear picking, stacking and the like on the corn once by using a machine when the corn is mature. The process flow comprises the following steps: ear picking is carried out by a corn harvester in a corn growth state (called stalk picking), and under the action of an ear picking roller and an ear picking plate, the ear stem is pulled apart. Due to the height difference of the inner and outer picking rollers, the clusters fall into the cluster box, and the box is opened and the clusters are piled after being filled.

Some corn harvesters in the prior art also have a function of processing straws, wherein the corn harvesters can crush and collect the straws, a device for cutting the roots of the straws and a device for crushing the straws are usually added at a header of the corn harvesters, so that the straw roots can be cut off, and the cut straws can be sent into the crushing device to be crushed along with the advance of the corn harvesters, are conveyed to one side through a packing auger, and are finally thrown into a collecting hopper or a following vehicle through a throwing cylinder.

Wherein because corn stalk is when sending into reducing mechanism, because corn stalk contains moisture more, whole root straw lacks the centre gripping when getting into reducing mechanism, takes place to smash incompletely easily, finally blocks the phenomenon of dead subsequent throwing material fan easily, consequently needs a stable corn harvester who smashes straw and respond well.

SUMMERY OF THE UTILITY MODEL

The utility model provides a maize picker straw feeding device has solved among the prior art that whole root straw lacks the centre gripping when getting into reducing mechanism, takes place to smash incompletely easily, finally blocks the phenomenon of dying subsequent throwing material fan easily.

The technical scheme of the utility model is realized like this:

a straw feeding device of a corn harvester comprises: a frame;

the lower cutting table is used for cutting off the straws and primarily crushing the straws;

the feed inlet of the crushing bin is communicated with the discharge outlet of the lower header, the crushing bin comprises a forced feeding device and a crushing device, the forced feeding device is positioned on the front side of the crushing device, and the forced feeding device is used for conveying straws to the crushing device;

and the discharge port of the crushing bin is communicated with the feeding port of the material throwing fan.

As a further technical scheme, the header includes the bottom plate down, the bottom plate both sides are provided with the locating plate respectively, the bottom plate front side is provided with decides the cutting knife, still includes a plurality of transport crushing roller, carry crushing roller both ends to rotate respectively and set up two on the locating plate, carry crushing roller to be located the bottom plate top, it is a plurality of carry crushing roller equidistance and arrange, carry and be provided with crushing blade on crushing roller side, still including collecting the auger, it rotates respectively to set up two to collect the auger both ends on the locating plate, it is located to collect the auger carry crushing roller rear, the blade that collects the auger both sides is revolved to opposite.

As a further technical scheme, the front side of the bottom plate is further provided with a movable cutting knife in a sliding manner, the movable cutting knife is parallel to the fixed cutting knife, the movable cutting knife slides along the extending direction of the fixed cutting knife, a swinging box is arranged on a fixed plate on one side, a connecting rod is arranged on a swinging shaft of the swinging box along the radial direction, the connecting rod faces downwards, and the lower end of the connecting rod is hinged to one end of the movable cutting knife.

As a further technical scheme, the forced feeding device comprises a plurality of conveying rollers which are rotatably arranged in the crushing bin, two feeding frames are respectively rotatably arranged inside two sides of the crushing bin, one end of each feeding frame is rotatably arranged on one side of the crushing bin, the other end of each feeding frame is rotatably provided with a feeding roller, two ends of each feeding roller are respectively rotatably arranged at the end parts of the two feeding frames, the middle part of each feeding frame is also connected with one end of a spring, the other end of each spring is connected with the crushing bin, and each spring is used for applying elastic force for enabling the feeding frame to rotate towards the conveying rollers;

as a further technical scheme, reducing mechanism is including smashing stationary knife and smashing the arbor, smash the stationary knife setting in smashing the storehouse, smash the stationary knife and arrange along horizontal equidistance, smash the arbor and rotate the setting in smashing the storehouse, smash the arbor axial with it is parallel to smash stationary knife array orientation, it is provided with crushing blade on the arbor to smash, crushing blade is a plurality of, and is a plurality of it follows to smash the blade smash arbor axial equidistance and arrange, the range interval of smashing the blade with the interval of smashing the stationary knife is the same, and every it all is located two to smash the blade between the stationary knife.

As a further technical scheme, the lower cutting table is rotatably arranged on the frame, and the lower part of the lower cutting table is hinged with the bottom of the frame through a hydraulic cylinder.

As a further technical scheme, header front side both ends still are provided with limit for height respectively down, limit for height the frame including touch the floor and prop the floor, touch floor one end with header front side fixed connection down, the other end with prop floor fixed connection, prop floor one end with to touch floor fixed connection, the other end is fixed to be set up in the front side of header down, touches the floor for the crooked arc of below, prop the floor for the crooked arc of above, to touch the floor middle part through the backup pad with prop the floor mid-connection.

The utility model discloses a theory of operation and beneficial effect do:

1. the utility model discloses in, the header then can cut off the root of maize straw in the field down to carry out preliminary crushing to whole maize straw, the straw after smashing enters into and smashes in the storehouse and further smashes, because the straw is pure through the secondary powder, consequently, the degree in small, broken bits has been guaranteed, can be thrown by the way of throwing the material fan, the condition of throwing the material fan and blockking up has been reduced, the reliability has been improved, smash in the storehouse, pile up for preventing preliminary kibbling maize straw, need add compulsory feeding device, the initiative makes preliminary kibbling straw feed to reducing mechanism, prevent to smash the storehouse jam, and then the reliability of smashing the storehouse has been improved.

2. The utility model discloses in, the surely cutting knife that the bottom plate front side set up can cut off the straw root, the root can be carried on the bottom plate by carrying crushing roller and smash, carry when smashing the roller and rotate, crushing blade can cooperate the bottom plate to cut off the straw on the one hand, another direction can drive the straw and carry to the rear, when being smashed will carry to when collecting the auger, because the blade of collecting the auger both sides revolves to opposite, it can carry the straw after smashing to the middle part to collect the auger, and finally carry to the straw conveyor at rear in.

3. The utility model discloses in, still be provided with and move the cutting knife, move one side of cutting knife and articulated with the connecting rod, the connecting rod is through fixed the realization with the output shaft of shaking the case and is swagged, and then makes to make the cutting knife can decide the cutting knife relatively and move, can move mutually when cutting off the straw and cut off and connect the straw, improves the roughness and the efficiency of cutting off the straw.

4. The utility model discloses in, feeding device by force includes the transfer roller of below and the feeding roller of top, exerts elasticity to the feeding frame through the spring, drives the feeding roller and rotates downwards and cooperate the transfer roller to compress tightly the straw, makes the straw by force be carried and smashes to reducing mechanism in, wherein the transfer roller is connected the power supply and is provided the power of initiative feeding.

5. The utility model discloses in, at the during operation, smash the blade and can produce relative motion with smashing the stationary knife, and then produce the shear force to the straw, fully smash the straw, wherein smash the blade and rotate through smashing the arbor, smash arbor and connect power and provide power.

6. In this embodiment, hydraulic system through the harvester can operate the pneumatic cylinder flexible, and the pneumatic cylinder stretches out header upward rotation down, and the header highly can rise for ground down, and the pneumatic cylinder withdrawal is then opposite for the header can height-adjusting down, can be applicable to more topography and more varieties maize, has improved the suitability.

7. In this embodiment, through the limit for height frame that sets up in header front side down, can prevent that header from rubbing ground down, improved corn harvester's reliability, corn harvester during operation, if the topography risees, to touch to the ground the board can be earlier with ground contact to through propping the floor and touching to the ground board transmission holding power, make pneumatic cylinder extension, header whole rotation and promotion down.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the conveying and pulverizing roller of the present invention;

in the figure: 1-vehicle frame, 22-lower cutting table, 221-bottom plate, 222-positioning plate, 223-fixed cutter, 224-conveying crushing roller, 225-crushing blade, 226-movable cutter, 227-swinging box, 228-connecting rod, 229-collecting auger, 23-hydraulic cylinder, 24-height limiting frame, 241-floor touching plate, 242-floor supporting plate, 243-supporting plate, 3-conveying device, 31-crushing bin, 311-forced feeding device, 3111-conveying roller, 3112-feeding frame, 3113-feeding roller, 3114-spring, 312-crushing device, 3121-crushing fixed cutter, 3122-crushing cutter shaft, 3123-crushing cutter blade and 32-throwing fan.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in figure 1, the straw feeding device of the corn harvester comprises: a frame 1;

the lower cutting table 22, the lower cutting table 22 is used for cutting off the straw and primarily crushing the straw;

the feed inlet of the crushing bin 31 is communicated with the discharge outlet of the lower cutting table 22, the crushing bin 31 comprises a forced feeding device 311 and a crushing device 312, the forced feeding device 311 is positioned on the front side of the crushing device 312, and the forced feeding device 311 is used for conveying straws to the crushing device 312;

the discharge port of the material throwing fan 32 and the crushing bin 31 are communicated with the feed port of the material throwing fan 32.

In this embodiment, the lower header 22 can cut off the root of the corn straw in the field, and primarily pulverize the whole corn straw, and the pulverized straw enters the pulverizing bin 31 to be further pulverized, and since the straw is secondarily pulverized, the fine crushing degree is ensured, and the pulverized straw can be thrown out by the material throwing fan 32, so that the blockage of the material throwing fan is reduced, and the reliability is improved.

Further, the lower header 22 includes a bottom plate 221, two sides of the bottom plate 221 are respectively provided with a positioning plate 222, the front side of the bottom plate 221 is provided with a fixed cutter 223, the lower header further includes a plurality of conveying crushing rollers 224, two ends of the conveying crushing rollers 224 are respectively rotatably arranged on the two positioning plates 222, the conveying crushing rollers 224 are positioned above the bottom plate 221, the plurality of conveying crushing rollers 224 are equidistantly arranged, the side surfaces of the conveying crushing rollers 224 are provided with crushing blades 225, the lower header further includes a collecting auger 229, two ends of the collecting auger 229 are respectively rotatably arranged on the two positioning plates 222, the collecting auger 229 is positioned behind the conveying crushing rollers 224, and the rotating directions of the blades on two sides of the.

In this embodiment, the straw root can be cut off by the fixed cutter 223 arranged at the front side of the bottom plate 221, the straw with the cut-off root can be conveyed and crushed by the conveying crushing roller 224 on the bottom plate 221, when the conveying crushing roller 224 rotates, the crushing blade 225 can be matched with the bottom plate 221 to cut off the straw on the one hand, and the straw can be driven to be conveyed backwards in the other direction, when the crushed straw is conveyed to the collecting auger 229, because the rotating directions of the blades on the two sides of the collecting auger 229 are opposite, the collecting auger 229 can convey the crushed straw to the middle part, and finally the crushed straw is conveyed to the straw conveying device 3 at the rear part.

Furthermore, a movable cutting knife 226 is slidably disposed on the front side of the bottom plate 221, the movable cutting knife 226 is parallel to the fixed cutting knife 223, the movable cutting knife 226 slides along the extending direction of the fixed cutting knife 223, a swing box 227 is disposed on a fixed plate on one side, a connecting rod 228 is radially disposed on a swing shaft of the swing box 227, the connecting rod 228 faces downward, and the lower end of the connecting rod 228 is hinged to one end of the movable cutting knife 226.

In this embodiment, a movable cutter 226 is further provided, one side of the movable cutter 226 is hinged to a connecting rod 228, the connecting rod 228 is fixed to an output shaft of the swing box 227 to swing, so that the movable cutter 226 can move relative to the fixed cutter 223, and when straw is cut off, the movable cutter can move mutually to cut off the straw, thereby improving the flatness and efficiency of cutting off the straw.

Further, the forced feeding device 311 includes a plurality of conveying rollers 3111 rotatably disposed in the pulverizing bin 31, two feeding racks 3112 are rotatably disposed inside two sides of the pulverizing bin 31, one end of each feeding rack 3112 is rotatably disposed on one side of the pulverizing bin 31, the other end of each feeding rack 3113 is rotatably disposed on the other side of the pulverizing bin, two ends of each feeding roller 3113 are rotatably disposed on the end portions of the two feeding racks 3112, the middle of each feeding rack 3112 is further connected with one end of a spring 3114, the other end of each spring 3114 is connected with the pulverizing bin 31, and each spring 3114 is used for applying elastic force for enabling the feeding rack 3112 to rotate towards the conveying rollers 3111;

in this embodiment, the forced feeding device 311 includes a conveying roller 3111 below and a feeding roller 3113 above, and applies elasticity to the feeding frame 3112 through a spring 3114, drives the feeding roller 3113 to rotate downwards and cooperate with the conveying roller 3111 to compress tightly the straw, so that the straw is conveyed to the smashing device 312 by force to be smashed, wherein the conveying roller 3111 is connected with a power source to provide the power of the active feeding.

Further, the crushing device 312 includes a crushing fixed knife 3121 and a crushing knife shaft 3122, the crushing fixed knife 3121 is disposed in the crushing bin 31, the crushing fixed knife 3121 is arranged along the horizontal equidistance, the crushing knife shaft 3122 is rotatably disposed in the crushing bin 31, the axial direction of the crushing knife shaft 3122 is parallel to the arrangement direction of the crushing fixed knife 3121, the crushing knife shaft 3122 is provided with a plurality of crushing blades 3123, the plurality of crushing blades 3123 are arranged along the axial direction of the crushing knife shaft 3122 at the equidistance, the arrangement distance of the crushing blades 3123 is the same as the distance of the crushing fixed knife 3121, and each crushing blade 3123 is located between two crushing fixed knives 3121.

In this embodiment, during operation, the crushing blade 3123 can generate relative motion with the crushing stationary knife 3121, and then generate shear force to the straw, fully crush the straw, wherein the crushing blade 3123 rotates through the crushing cutter shaft 3122, and the crushing cutter shaft 3122 is connected with power and provides power.

Further, the lower cutting platform 22 is rotatably arranged on the frame 1, and the lower part of the lower cutting platform 22 is hinged with the bottom of the frame 1 through a hydraulic cylinder 23.

In this embodiment, hydraulic system through the harvester can operate pneumatic cylinder 23 flexible, and pneumatic cylinder 23 stretches out header 22 and upwards rotates, and header 22 can rise for the high meeting on ground down, and pneumatic cylinder 23 withdrawal is then opposite for header 22 can height-adjusting, can be applicable to more topography and more varieties maize, has improved the suitability.

Further, the height limiting frames 24 are further respectively arranged at two ends of the front side of the lower header 22, each height limiting frame 24 comprises a contact floor 241 and a support floor 242, one end of the contact floor 241 is fixedly connected with the front side of the lower header 22, the other end of the contact floor is fixedly connected with the support floor 242, one end of the support floor 242 is fixedly connected with the contact floor 241, the other end of the support floor is fixedly arranged at the front side of the lower header 22, the contact floor 241 is in an arc shape bending downwards, the support floor 242 is in an arc shape bending upwards, and the middle of the contact floor 241 is connected with the middle of the support floor 242 through a support plate 243.

In this embodiment, through the height-limiting frame 24 that sets up in lower header 22 front side, can prevent lower header 22 from rubbing the ground, improved maize picker's reliability, maize picker during operation, if the topography risees, the board 241 can contact with ground earlier to through propping floor 242 and the board 241 transmission holding power that touches ground to make pneumatic cylinder 23 extension, lower header 22 wholly rotate and promote.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A corn harvester straw feeding device is characterized by comprising: a frame (1);

a lower cutting platform (22), wherein the lower cutting platform (22) is used for cutting off straws and primarily crushing the straws;

the feed inlet of the crushing bin (31) is communicated with the discharge outlet of the lower cutting table (22), the crushing bin (31) comprises a forced feeding device (311) and a crushing device (312), the forced feeding device (311) is positioned on the front side of the crushing device (312), and the forced feeding device (311) is used for conveying straws to the crushing device (312);

and the discharge hole of the crushing bin (31) is communicated with the feeding hole of the material throwing fan (32).

2. The corn harvester straw feeding device according to claim 1, wherein the lower header (22) comprises a bottom plate (221), two sides of the bottom plate (221) are respectively provided with a positioning plate (222), the front side of the bottom plate (221) is provided with a fixed cutter (223), the corn harvester straw feeding device further comprises a plurality of conveying crushing rollers (224), the conveying crushing rollers (224) are respectively rotatably arranged on the two positioning plates (222), the conveying crushing rollers (224) are positioned above the bottom plate (221), the conveying crushing rollers (224) are arranged at equal intervals, crushing blades (225) are arranged on the side surfaces of the conveying crushing rollers (224), the corn harvester straw feeding device further comprises a collecting auger (229), two ends of the collecting auger (229) are respectively rotatably arranged on the two positioning plates (222), the collecting auger (229) is positioned behind the conveying crushing rollers (224), the blade rotating directions of the two sides of the collecting auger (229) are opposite.

3. The straw feeding device of the corn harvester according to claim 2, wherein a movable cutting knife (226) is further slidably disposed on the front side of the bottom plate (221), the movable cutting knife (226) is parallel to the fixed cutting knife (223), the movable cutting knife (226) slides along the extending direction of the fixed cutting knife (223), a swing box (227) is disposed on a fixed plate on one side, a connecting rod (228) is radially disposed on a swing shaft of the swing box (227), the connecting rod (228) faces downward, and the lower end of the connecting rod (228) is hinged to one end of the movable cutting knife (226).

4. The straw feeding device of the corn harvester according to claim 1, wherein the forced feeding device (311) comprises a plurality of conveying rollers (3111) rotatably arranged in the crushing bin (31), two feeding frames (3112) are rotatably arranged inside two sides of the crushing bin (31) respectively, one end of each feeding frame (3112) is rotatably arranged on one side of the crushing bin (31), the other end of each feeding frame (3113) is rotatably arranged on one end of each feeding frame (3112), two ends of each feeding roller (3113) are rotatably arranged on the ends of the two feeding frames (3112) respectively, one end of a spring (3114) is further connected to the middle of each feeding frame (3112), the other end of each spring (3114) is connected with the crushing bin (31131), and each spring (3114) is used for enabling the feeding frames (3112) to rotate towards the conveying rollers (3111).

5. The straw feeding device of the corn harvester according to claim 1, the crushing device (312) comprises a crushing fixed knife (3121) and a crushing knife shaft (3122), the crushing fixed knives (3121) are arranged in the crushing bin (31), the crushing fixed knives (3121) are arranged along the transverse direction at equal intervals, the crushing cutter shaft (3122) is rotatably arranged in the crushing bin (31), the axial direction of the crushing cutter shaft (3122) is parallel to the arrangement direction of the crushing fixed cutters (3121), the crushing cutter shaft (3122) is provided with a plurality of crushing blades (3123), the crushing blades (3123) are arranged at equal intervals along the axial direction of the crushing cutter shaft (3122), the arrangement distance of the crushing blades (3123) is the same as the distance of the crushing fixed blades (3121), and each of the crushing blades (3123) is located between the two crushing stationary blades (3121).

6. The straw feeding device of the corn harvester according to claim 1, wherein a lower cutting table (22) is rotatably arranged on the frame (1), and the lower part of the lower cutting table (22) is hinged with the bottom of the frame (1) through a hydraulic cylinder (23).

7. The straw feeding device of the corn harvester according to claim 6, wherein the two ends of the front side of the lower header (22) are respectively provided with an elevation limiting frame (24), the elevation limiting frame (24) comprises a floor contact plate (241) and a floor support plate (242), one end of the floor contact plate (241) is fixedly connected with the front side of the lower header (22), the other end of the floor contact plate is fixedly connected with the floor support plate (242), one end of the floor support plate (242) is fixedly connected with the floor contact plate (241), the other end of the floor contact plate is fixedly arranged on the front side of the lower header (22), the floor contact plate (241) is in an arc shape bending downwards, the floor support plate (242) is in an arc shape bending upwards, and the middle of the floor contact plate (241) is connected with the middle of the floor support plate (242) through a support plate (243).