CN115176588A

CN115176588A - Ear-stem harvesting and chopping assembly

Info

Publication number: CN115176588A
Application number: CN202210944582.3A
Authority: CN
Inventors: 赵霈; 王乐刚; 宋玉兵; 王岩亮; 刘鹏; 刘娜; 郭金港
Original assignee: Weichai Lovol Heavy Industry Co Ltd
Current assignee: Weichai Lovol Heavy Industry Co Ltd
Priority date: 2022-08-08
Filing date: 2022-08-08
Publication date: 2022-10-14

Abstract

The invention relates to the technical field of agricultural machinery, in particular to an ear and stem harvesting and chopping assembly which comprises a header frame, wherein a feeding system, a stem pulling and ear picking unit and a conveying and chopping device are arranged on the header frame, the feeding system comprises a clamping chain, the stem pulling and ear picking unit comprises a pair of feeding rollers and a pair of ear picking and stem pulling rollers, the feeding rollers are arranged on the front side of the top of a stem pulling and ear picking gear box body, the ear picking and stem pulling rollers correspond to the feeding rollers and are arranged on the rear side of the top of the stem pulling and ear picking gear box body, the upper parts of the feeding rollers are connected with clamping chain wheels matched with the clamping chain, the conveying and chopping device comprises an inlet end and an output end which are respectively arranged at the front end and the rear end of a chopping shell, a chopper cutter shaft is arranged in the chopping shell close to the output end, and a front upper feeding roller and a rear upper feeding roller which are arranged in the chopping shell are sequentially arranged from front to rear above the chopper shaft. Is favorable for maintenance.

Description

Ear-stem harvesting and chopping assembly

Technical Field

The invention relates to the technical field of agricultural machinery, in particular to a harvesting and chopping assembly for harvesting ears and stalks.

Background

The existing harvesting and chopping assembly of a corn harvester comprises a header frame, wherein a straw output end of the header frame is connected with a chopping shell for crushing the straws after snapping. The header frame is provided with a clamping chain and a stalk pulling roller which are sequentially arranged from front to back, the feeding and clamping are mainly carried out by respectively using one clamping chain at the left and the right of a conveying channel, and a common chopping device selects four feeding rollers which are respectively provided with two feeding rollers at the upper part and the lower part.

The above technical solution has the following disadvantages: 1. the stalk-pulling roller and the clamping chain wheel are coaxially arranged, so that the corn straws reaching the rear part of the stalk-pulling roller are easy to move forward again after the clamping chain bypasses the stalk-pulling roller, and the stalk-pulling roller and the clamping chain are easy to be wound by broken leaves. 2. When the straw is conveyed to the cutter shaft of the chopper from the chopping channel formed by the feeding rollers, the stroke of clamping the straw by the four feeding rollers is short, the efficiency of straw conveying is easily influenced when the longer straw is conveyed, the smooth passage of the straw through the crushing channel cannot be ensured, and even the blockage phenomenon is generated. In addition, the front upper feeding roller and the front lower feeding roller in the prior art are clamped together, so that the feeding port of the crushing channel is too small, and the straws cannot enter the crushing channel smoothly; moreover, the upper end and the lower end of the crushing shell in the prior art are connected with the header frame through bolts, so that the crushing shell is complex to assemble and disassemble and is inconvenient to maintain and repair.

Disclosure of Invention

The invention aims to provide a harvesting and chopping assembly for harvesting ears and stalks, which aims to solve the problems, improve the harvesting efficiency and facilitate the maintenance.

The invention discloses an ear-stem harvesting and chopping assembly, which comprises a header frame, wherein a feeding system, a stem pulling and ear picking unit and a conveying and chopping device are arranged on the header frame, the feeding system comprises a clamping chain, the stem pulling and ear picking unit comprises a pair of feeding rollers arranged on the front side of the top of a stem pulling and ear picking gear box body and a pair of ear picking and stem pulling rollers corresponding to the feeding rollers and arranged on the rear side of the top of the stem pulling and ear picking gear box body, the upper part of each feeding roller is connected with a clamping chain wheel matched with the clamping chain, the conveying and chopping device comprises a feeding end and an output end which are respectively arranged on the front end and the rear end of a chopping shell, a chopper cutter shaft is arranged in the chopping shell close to the output end, a front upper feeding roller and a rear upper feeding roller arranged in the chopping shell are sequentially arranged above the chopper cutter shaft from front to rear, and a front lower feeding roller, a middle lower feeding roller and a rear lower roller arranged in the chopping shell are sequentially arranged below the chopper shaft from front to rear.

The clamping chain is wound on the clamping chain wheel, the clamping chain wheel is located in front of the stem pulling rollers, when the corn stalk picking device is used, the rotating directions of the two stem pulling rollers are opposite, the rotating directions of the two feeding rollers are opposite, the clamping chain drives corn stalks to move backwards, when the corn stalks reach the clamping chain wheel, the stem pulling rollers and the corn stalk picking rollers continue to pull the corn stalks and pick corn ears, the clamping chain continues to rotate, and the next conveying of the corn stalks is completed. The corn straw can not bypass the stalk-pulling roller under the driving of the clamping chain, the probability of failure of the stalk-pulling roller due to the winding of the broken leaves is reduced, and the production efficiency is improved.

The middle-lower feeding roller is arranged between the front lower feeding roller and the rear lower feeding roller, so that the straw can be effectively prevented from being blocked in the conveying process, the straw can smoothly pass through the chopping channel, and the conveying efficiency of the straw is further ensured.

Preferably, the feeding system further comprises a reel feeding mechanism and a stem clamping mechanism, the reel feeding mechanism comprises a reel rack and a reel chain rotatably mounted on the reel rack, the stem clamping mechanism comprises a clamping rack, the clamping chain is rotatably mounted on the clamping rack, the rear end of the reel chain is in transmission connection with the front end of the clamping chain, a reel finger for pulling a stem is arranged on the outer side of the reel chain, and the reel finger is perpendicular to the conveying direction of a reel outer chain plate, a reel inner chain plate and the stem of the reel chain;

the front end of the reel stand is provided with a reel tension wheel, and the front end of the reel chain is arranged on the reel tension wheel.

The straw conveying device has the advantages that one conveying chain is divided into two parts, namely the front feeding reel chain and the rear clamping chain, the straw is fed to the clamping chains by the reel chain, and then the straw is conveyed backwards by the clamping chains, so that the stability of straw conveying is enhanced, and the blocking phenomenon in the straw conveying process is effectively reduced; in addition, the straw can be poked into the clamping channel by the arrangement of the seedling poking fingers, so that the clamping chain is convenient to clamp the straw, and the conveying stability and the harvesting efficiency are enhanced.

Preferably, the upper end and the lower end of the reel finger are respectively and fixedly connected to two reel outer chain plates or two reel inner chain plates opposite to each other on the reel chain, so that the structure of the reel chain is simplified.

Preferably, the seedling pulling fingers and the two seedling pulling outer chain plates or the two seedling pulling inner chain plates connected with the upper end and the lower end of the seedling pulling fingers are integrally formed. The stability of the structure of the reeling chain is enhanced, and the stability of the stalk feeding is further increased.

Preferably, the seedling pulling fingers are arranged on the seedling pulling outer chain plates and one seedling pulling finger is arranged at each interval of a pair of seedling pulling outer chain plates, or the seedling pulling fingers are arranged on the seedling pulling inner chain plates and one seedling pulling finger is arranged at each interval of a pair of seedling pulling inner chain plates.

Preferably, a plurality of gear-shaped clamping teeth are arranged on the outer side of the clamping chain at intervals and are positioned on the clamping inner chain plate and the clamping outer chain plate. The clamping stability of the stalks can be enhanced by arranging the gear-shaped clamping teeth, and the blocking phenomenon can be further prevented from occurring in the process of conveying the stalks.

Preferably, a rotary cone pulley is arranged at the joint of the reel frame and the clamping frame, and the front end of the clamping chain and the rear end of the reel chain are both arranged on the rotary cone pulley. The clamping chain transmits power to the reel chain through the rotating tower wheel.

Preferably, a reel chain wheel is arranged on the reel frame.

Preferably, a feeding channel is formed between every two reel feeding mechanisms, a clamping channel is formed between every two stalk clamping mechanisms, the width of a left opening and a right opening at the front end of the clamping channel is larger than that of a left opening and a right opening at the middle rear part of the clamping channel, and stalks can smoothly enter the clamping channel from the feeding channel.

Preferably, the left and right clamping frames between two adjacent clamping channels correspond to a reel frame.

In the prior art, a reel stand is respectively connected in front of a left clamping stand and a right clamping stand between two adjacent clamping channels, and the structural stability is poor.

The reel machine frame in front of the left clamping machine frame and the right clamping machine frame between the two adjacent clamping channels is arranged into a whole, so that the stability of the structure is enhanced.

Preferably, the straw reeling machine further comprises two end reel frames positioned at the left side and the right side of all the clamping frames, the rear ends of the two end reel frames are respectively and rotatably connected with the front ends of the two clamping frames positioned at the leftmost side and the rightmost side, and a feeding channel is also formed between each end reel frame and the adjacent reel frame. The rotatable centre gripping frame front end of connecting of tip reel frame conveniently adjusts the cutting pair of maize results header, can satisfy the results requirement to the different planting interval maize.

Preferably, the standing grain reel further comprises an adjusting rod and a support fixedly arranged, a mounting seat is arranged on the end standing grain reel frame, and two ends of the adjusting rod are respectively hinged to the mounting seat and the support.

Preferably, adjust the pole including being located two steel pipes at both ends respectively and being located middle threaded rod, two steel pipes are close to the one end of threaded rod respectively fixedly connected with screw thread and revolve to two fixation nut opposite, and the both ends of threaded rod are equipped with the screw thread with two fixation nut's screw thread looks adaptation respectively, and the both ends of threaded rod pass two fixation nut respectively and stretch into two steel pipes in. The opening and closing degree between the end part reel stand and the reel stand adjacent to the end part reel stand can be adjusted by adjusting the length of the adjusting rod through rotating the threaded rod, so that the cutting pair of the corn harvesting header is adjusted, the operation is convenient, and the structure is simple.

Preferably, two movable nuts which are the same as the two fixing nuts in thread turning direction are respectively arranged at the positions, close to the two fixing nuts, on the threaded rod, and are used for fixing the adjusting rod, so that the stability between the threaded rod and the fixing nuts at the two ends of the threaded rod can be guaranteed. The middle of the threaded rod is provided with a clamping groove convenient for adjusting a wrench, namely, the threads at the two ends of the clamping groove on the threaded rod are opposite in rotating direction.

Preferably, the clamping frame is provided with a tensioning wheel set, the tensioning wheel set is positioned on one side of the clamping frame far away from the clamping channel, and the installation position of the other tensioning wheel set is backward compared with one tensioning wheel set in the two tensioning wheel sets between the left clamping channel and the right clamping channel. So that the two opposite tightening wheel groups can not interfere with each other when the tensioning is adjusted, and the tensioning stroke is increased.

Preferably, the tensioning wheel set comprises a clamping tensioning wheel and a clamping pressing wheel, the clamping tensioning wheel is connected with the clamping pressing wheel through a connecting plate, the clamping pressing wheel is rotatably installed on the clamping rack, and the clamping tensioning wheel is hinged to the clamping rack through an adjusting device.

Preferably, the front end part of the clamping rack is provided with a front mounting shaft and a rear mounting shaft from front to back, the joints of the clamping rack, the reel rack connected with the clamping rack and the end reel rack are provided with tower wheel mounting shafts which are in a straight line with the front mounting shaft and the rear mounting shaft, and the front mounting shaft, the rear mounting shaft and the tower wheel mounting shafts are connected through strip plates, so that the mounting strength between the clamping rack and the reel rack connected with the clamping rack or the end reel rack can be increased.

Preferably, in two tight pulley groups between two adjacent left and right clamping channels, the adjusting device of one of the tight pulley groups is hinged with the clamping rack through a front mounting shaft, and the adjusting device of the other tight pulley group is hinged with the clamping rack through a rear mounting shaft.

Preferably, the front end of the end reel stand is connected with reel tensioning wheels through an elastic adjusting device, and the left end and the right end of the front end of the reel stand are respectively connected with the two reel tensioning wheels through the elastic adjusting device.

Preferably, a plurality of groups of chain positioning mechanisms matched with the clamping chains are arranged on the adjacent side edges of the two clamping racks at intervals respectively, and each chain positioning mechanism comprises an anti-skid wheel and a limiting wheel which are arranged on the clamping racks.

At present, stem stalk clamping device installs usually in the header frame of harvester, because of the increase of the feeding volume of stem stalk, can make the centre gripping chain clearance of inter work increase at the device operation in-process to the centre gripping effect that leads to the centre gripping chain is relatively poor, the phenomenon of skidding appears, and simultaneously, current centre gripping conveying mechanism's fault rate is higher, can waste a large amount of manpower and materials at the maintenance in-process.

Through a plurality of antiskid wheel and spacing wheel that set up in two centre gripping frames, make the stem stalk carry in the centre gripping passageway and be S type route motion, can effectually guarantee the centre gripping effect in the stem stalk transportation process, avoid simultaneously among the transportation process the phenomenon of skidding to appear between stem stalk and the centre gripping chain.

Preferably, the anti-skid wheels and the limiting wheels are arranged at intervals in the front-back direction of the clamping rack, and the intervals between the anti-skid wheels and the side edges of the clamping rack are larger than the distances between the limiting wheels and the side edges of the clamping rack. The clamping chain can be conveniently supported by the side edge of the limiting wheel close to the clamping rack, and the anti-skid wheel far away from the side edge of the clamping rack can facilitate the formation of a depression on the clamping chain when the stalks enter, so that the anti-skid function is realized in the stalk clamping and conveying process.

Preferably, the anti-skid wheels and the limiting wheels on the two clamping frames are symmetrically arranged along a clamping channel formed by the two clamping frames, and the central axes of the anti-skid wheels and the central axes of the limiting wheels are positioned in the same vertical plane.

Preferably, the distance between the wheel of the rotating tower and the chain positioning mechanism is greater than the distance between the anti-skid wheel and the limiting wheel, and a bolt for fixing the clamping rack is arranged between the anti-skid wheel and the limiting wheel close to the clamping chain wheel. The chain positioning mechanism and the rotary cone pulley have a certain distance, so that the stalks can conveniently enter the clamping channel, and the bolts arranged between the anti-skidding wheels at the tail ends of the clamping channel and the limiting wheels are reduced, so that the distance between the anti-skidding wheels and the limiting wheels is reduced, the stalks can be conveniently conveyed, and the stalks can be prevented from being clamped at the tail ends of the clamping channel.

Preferably, the diameter of the anti-skid wheel is smaller than that of the limiting wheel.

Preferably, the straw cutting machine further comprises a straw divider, a grain-supporting frame hinged on the header rack is arranged above the straw divider, a plurality of grain-supporting rods positioned above the straw divider are arranged on the grain-supporting frame, and the distance between the front ends of two adjacent grain-supporting rods is matched with the distance between two adjacent straw dividers below the grain-supporting rods.

At present, a grain lifting device is usually arranged on a header rack of a harvester, but most of the grain lifting devices are integrally bent, processed and molded, and the problem that grain dividers on two sides cannot be adjusted left and right exists, so that the adaptability is poor when crops with different row distances are harvested; because there is not locking mechanism on the present divider, so there is the great problem of vibrations when reaping, simultaneously, the fashioned divider of integrative buckling still has problems such as bulky, cost of transportation height, and when the staff overhauld, the process of dismouting also more loaded down with trivial details can waste a large amount of manpower and materials moreover.

The device is convenient to transport and overhaul, the divider and the straw-holding rod are designed into a split structure, so that the device is low in cost and convenient and quick to open during manufacturing and transportation, the divider is clamped on a feeding system through a clamping mechanism, the stability of the divider during harvesting can be effectively guaranteed, and the straw-holding rod hinged above the divider can adapt to harvesting crops with different growth conditions.

Preferably, the crop divider is a shell which is formed by a plurality of covering plates, is closed at the periphery and is opened at the lower part, and comprises a protective shell and a crop dividing shell which is connected to the front end of the protective shell and clamped on the feeding system.

Preferably, the protective shell comprises a first upper covering plate arranged horizontally, first side covering plates arranged on the left side and the right side of the first upper covering plate in an inclined mode, and rear covering plates vertically connected to the rear end of the first upper covering plate, wherein the left side and the right side of the first upper covering plate are connected with the first side covering plates; the seedling dividing shell comprises a second upper covering plate which is arranged at the front end of the first upper covering plate and inclines downwards, the front end of the second upper covering plate is connected with a rectangular plate which is arranged along the vertical direction, the left side and the right side of the second covering plate are provided with second side covering plates which are connected with the first side covering plates, and the lower bottom end of the second inclined covering plate is parallel and level with the lower bottom end of the rectangular plate. The straw divider is arranged into a semi-conical shell, so that the straw can be quickly divided in the working process, the rectangular plate arranged at the front end of the straw divider can be matched with the straw dividing tension wheel arranged at the front end of the straw dividing rack, and the straws at the end part are pulled open by the straw dividing tension wheel, so that the straws can quickly enter the feeding channel to avoid being knocked down.

A connecting hinge is arranged on the body of the protective shell close to the rear end, and a clamping mechanism connected with the reel stand is arranged in the seedling dividing shell; the rear end of the divider is hinged to the clamping rack through the connecting hinge, and the front part of the divider is clamped on the reel rack through the clamping mechanism, so that the whole divider can be conveniently disassembled and assembled, and the detection and the maintenance of workers are facilitated.

Preferably, the clamping mechanism comprises a clamping rod horizontally arranged in the seedling dividing shell and a clamping seat arranged on the seedling shifting frame, the clamping seat is wrapped and fixed on a connecting base on the seedling shifting frame and a buckle fixedly connected to one side of the connecting base and matched with the clamping rod, a positioning plate is arranged on the clamping rod, a clamping groove matched with the positioning plate is formed in the upper end face of the connecting base, and a clamping opening of the buckle vertically extends upwards and extends out of the upper end face of the connecting base. Through with the locating plate with clamp the pole card respectively and clamp the groove with in the buckle, make more convenient fast when dismouting divider to have and support limiting displacement and effectively avoid the luffing motion of divider.

Preferably, the seedling dividers close to the left end and the right end of the header rack comprise protective shells hinged with side plates of the header rack and seedling dividing shells hinged at the front ends of the protective shells and clamped at the front ends of the feeding systems, rubber plates are arranged on the left side plate and the right side plate of the seedling dividing shells, and the rubber plates cover gaps between the protective shells and the seedling dividing shells. The reel frames at the left end and the right end of the header frame are adjustable, the front ends of the dividers positioned at the left end and the right end of the header frame are arranged to be hinged structures, the dividers can be fully matched with the reel frames at the end parts, and straws positioned at the left end and the right end of the header frame can conveniently enter the feeding channels of the header.

Preferably, the rear end face of the grain divider is provided with a guard plate, the lower bottom edge of the guard plate is flush with the lower bottom edge of the rear end face of the grain divider, and the outer end edges of the upper guard plates of the two adjacent grain dividers are attached to each other. The harvested ears and stalks can be prevented from falling off by matching the upper guard plates of two adjacent grain dividers.

Preferably, the left side plate and the right side plate of the header frame are provided with hinged seats, two ends of the grain-supporting frame are respectively hinged on the hinged seats of the left side plate and the right side plate of the header frame, each hinged seat comprises a supporting seat fixed on the inner end face of the corresponding side plate of the header frame, two hinged plates are arranged on the supporting seat at intervals, corresponding hinged holes are formed in the two hinged plates, the grain-supporting frame is a rod body with two ends bent downwards, through holes corresponding to the hinged holes are formed in the two ends of the rod body, and bolts for hinging the two through holes and the hinged holes are installed in the through holes. The grain-supporting frame is a rod body with two ends bent downwards, so that the grain-supporting frame can have a certain height and is convenient to install.

Preferably, the straw-holding rod is a rod body with the front end bent downwards and the front end attached to the upper top surface of the straw divider, the rear end of the straw-holding rod is fixedly connected to the straw-holding frame, the direction of the straw-holding rod is adapted to the clamping channel of the header frame, and a straw-holding limiting rod is arranged between two adjacent straw-holding rods positioned right above the clamping channel. The straw lifter with the bent front end is matched with the straw divider, so that lodging of the ear stems during harvesting can be avoided, and the ear stems enter the input channel when cutting is convenient.

Preferably, the stem pulling and ear picking assembly comprises a stem pulling and ear picking gearbox body, two stem pulling roller shafts which are vertically arranged are rotatably connected to the stem pulling and ear picking gearbox body, stem pulling rollers are mounted on the stem pulling roller shafts, ear picking rollers are connected to the stem pulling rollers, the two stem pulling roller shafts are arranged on the left and right, two feeding roller shafts which are vertically arranged and located in front of the stem pulling roller shafts are further rotatably connected to the stem pulling and ear picking gearbox body, feeding rollers are connected to the feeding roller shafts, clamping chain wheels are mounted on the feeding roller shafts, the two feeding roller shafts are arranged on the left and right, the two stem pulling roller shafts are in transmission connection, the two feeding roller shafts are in transmission connection, one stem pulling roller shaft is in transmission connection with one of the feeding roller shafts, one ear picking roller is connected with one ear picking roller reversing gear box, and the ear picking roller reversing gear box is mounted on the header frame.

Preferably, the ear-picking stalk-pulling rollers comprise an upper ear-picking roller and a lower stalk-pulling roller, wherein the top of one ear-picking roller is in transmission connection with a reversing gear box for providing power for the ear-picking roller;

draw stem and pluck ear of grain gearbox and go up to rotate and be connected with the stem stalk roll axle of two vertical settings, the stem stalk rolls is installed on the stem stalk roll axle, two left and right settings of stem stalk roll axle, still rotate on the stem stalk plucking ear of grain gearbox and be connected with two vertical settings, and be located the feeding roller in stem stalk axle the place ahead, the feeding roller is installed on the feeding roller, two left and right settings of feeding roller axle, two transmission are connected between the stem stalk roll axle, transmission is connected between two feeding roller axles, one of them is drawn the stem stalk roll axle and one of them is gone into the transmission and is connected between the roller axle.

Preferably, one of the stem drawing roller shafts is provided with a first stem drawing roller gear and a second stem drawing roller gear, the other stem drawing roller shaft is provided with a third stem drawing roller gear meshed with the second stem drawing roller gear, one of the feeding roller shafts is provided with a second feeding roller gear and a first feeding roller gear meshed with the first stem drawing roller gear, the other feeding roller shaft is provided with a third feeding roller gear meshed with the second feeding roller gear, and the stem drawing roller shaft provided with the first stem drawing roller gear and the feeding roller shaft provided with the first feeding roller gear are arranged in a diagonal manner. When the corn ear picking machine is used, the reversing gear box of the picking roller transmits power to the first picking roller to drive the first picking roller and the first stem-pulling roller shaft to rotate, the first stem-pulling roller shaft drives the second stem-pulling roller shaft to rotate through the second stem-pulling roller gear and the third stem-pulling roller gear, the first stem-pulling roller shaft drives the first feeding roller shaft to rotate through the first stem-pulling roller gear and the first feeding roller gear, and the first feeding roller shaft drives the second feeding roller shaft to rotate through the second feeding roller gear and the third feeding roller gear. The structure is compact and the transmission is reliable.

Preferably, the first stalk-pulling roller gear and the first feeding roller gear are positioned at the lower part of the inner side of the stalk-pulling ear-picking gear box body, the second stalk-pulling roller gear and the third stalk-pulling roller gear are positioned at the upper part of the inner side of the stalk-pulling ear-picking gear box body, and the second feeding roller gear and the third feeding roller gear are positioned at the middle part of the inner side of the stalk-pulling ear-picking gear box body. When the stem-pulling and ear-picking gearbox is used, gears in the stem-pulling and ear-picking gearbox body are arranged in three layers, so that the risk of mutual interference is reduced, the space utilization rate is improved, the structure is compact, and the transmission is reliable.

Preferably, the height of the upper end of the feeding roller shaft is greater than that of the upper end of the stalk-pulling roller shaft. When the feeding roller is used, the feeding roller shaft is used for installing the feeding roller, and the upper end of the feeding roller is arranged in a suspended mode, so that the feeding roller shaft is longer in length and is beneficial to improving the stability of the feeding roller; the stalk-pulling roller shaft is used for installing the stalk-pulling roller and the snapping roller, and the stalk-pulling roller shaft can be shorter because the upper end of the snapping roller is suspended.

Preferably, a feeding roller shaft sleeve sleeved on a feeding roller shaft is arranged on the stem-pulling ear-picking gearbox body, and the feeding roller shaft is rotatably connected with the upper end of the feeding roller shaft sleeve. When the feeding roller is used, the feeding roller is sleeved on the feeding roller shaft, and the feeding roller shaft sleeve can improve the stability of the feeding roller shaft and the feeding roller.

Preferably, the upper end of the stem-pulling roll shaft is provided with a spline shaft structure, and the upper end of the feeding roll shaft is provided with a spline shaft structure. When in use, the utility model is convenient to install.

Preferably, the upper end of the stalk-pulling ear-picking gearbox body is arranged in an open mode, and a stalk-pulling ear-picking gearbox cover is detachably mounted at the upper end of the stalk-pulling ear-picking gearbox body. Manufacturing and installation of gear box body convenient for stalk pulling and ear picking

Preferably, the lower end of the stalk-pulling roll shaft is rotatably connected with the bottom of the stalk-pulling ear-picking gear box body, the stalk-pulling roll shaft penetrates through the stalk-pulling ear-picking gear box cover and is rotatably connected with the stalk-pulling ear-picking gear box cover, the lower end of the feeding roll shaft is rotatably connected with the bottom of the stalk-pulling ear-picking gear box body, and the feeding roll shaft penetrates through the stalk-pulling ear-picking gear box cover and is rotatably connected with the stalk-pulling ear-picking gear box cover. The manufacturing and the installation of the stalk pulling and ear picking gear box body are convenient.

Preferably, the distance between the central axes of the two stalk-pulling roll shafts is smaller than the distance between the central axes of the two feeding roll shafts; the width of the gap between the two stalk-pulling rollers is less than that of the gap between the two feeding rollers. When in use, the conveying of the corn straws is convenient.

Preferably, the stem-pulling ear-picking gearbox body is rectangular, and four corners of the stem-pulling ear-picking gearbox body are provided with round corners. And each gear is convenient to mount.

Preferably, the side part of the feeding roller is connected with a plurality of feeding ridges, the feeding ridges extend along the vertical direction, and the outer sides of the feeding ridges are provided with a plurality of convex teeth. When the corn stalk feeding device is used, the feeding edge shifts the corn stalks to the rear part of the feeding roller along with the rotation of the feeding roller.

Preferably, the diameter of the upper end of the stalk-pulling roll is larger than that of the lower end of the stalk-pulling roll, a plurality of stalk-pulling ridges are connected to the side part of the stalk-pulling roll, the stalk-pulling ridges extend along the vertical direction, and the outer sides of the stalk-pulling ridges are vertically arranged. When the corn stalk puller is used, the gap between the lower ends of the two stalk pulling rollers is larger, so that corn stalks can be conveniently fed, and the blockage is reduced.

Preferably, the cross section of the side part of the snapping roll is octagonal, the side part of the snapping roll is connected with a plurality of first snapping ridges, and the first snapping ridges extend in the vertical direction. When the corn ear picking device is used, the first ear picking ridges push the corn straws to the rear part of the ear picking roller along with the rotation of the ear picking roller, so that the corn ears and the corn straws are conveniently separated.

Preferably, the cross section of the first snapping flute is circular. Preferably, the first ear picking ridges are made of threaded round steel, so that the friction force between the ear picking rollers and the corn straws is improved, and the first ear picking ridges push the corn straws to the rear parts of the ear picking rollers, so that the corn ears and the corn straws are conveniently separated.

Preferably, the number of the first snapping ridges is four, and the four first snapping ridges are arranged corresponding to four spaced corners on the side of the snapping roll one by one. When the corn ear picking device is used, the first ear picking ridges are matched with the ear picking rollers to push the corn straws left and right, so that the corn ears and the corn straws are conveniently separated.

Preferably, the cross section of the lateral part of the snapping roll is circular, the lateral part of the snapping roll is connected with a plurality of first snapping ridges, the first snapping ridges are U-shaped, the open end of the snapping roll faces the rotating direction of the snapping roll, and the first snapping ridges are distributed spirally. When the corn ear picking device is used, the first ear picking ridges push the corn straws to the rear part of the ear picking roller along with the rotation of the ear picking roller, so that the corn ears and the corn straws are conveniently separated.

Preferably, the length of the lower side edge of the first snapping ridge is greater than that of the upper side edge of the first snapping ridge. When the corn ear picking device is used, the friction force between the ear picking roller and the corn straws is improved, the first ear picking ridges push the corn straws to the rear part of the ear picking roller, and the corn ears and the corn straws are conveniently separated.

Preferably, the end part of the lower side of the first snapping ridge is inclined downwards. When the corn ear picking device is used, the friction force between the ear picking roller and the corn straws is improved, the first ear picking ridges push the corn straws to the rear part of the ear picking roller, and the corn ears and the corn straws are conveniently separated.

Preferably, the cross section of the side part of the snapping roll is circular, and the side part of the snapping roll is connected with a second snapping ridge in a spiral shape. When the corn ear picking device is used, along with the rotation of the ear picking roller, the second ear picking ridges push the corn straws to the rear part of the ear picking roller, so that the corn ears and the corn straws are conveniently separated.

Preferably, the side part of the snapping roll is also connected with a plurality of first snapping ridges which extend along the vertical direction, and the first snapping ridges are provided with notches for the second snapping ridges to pass through. When the corn ear picking device is used, the friction force between the ear picking rollers and the corn straws is improved, the first ear picking ridges and the second ear picking ridges push the corn straws to the rear parts of the ear picking rollers, and the corn ears and the corn straws are conveniently separated.

Preferably, the cross sections of the first snapping flute and the second snapping flute are circular. Preferably, the first ear picking ridges are made of threaded round steel, so that the friction force between the ear picking rollers and the corn straws is improved, and the corn straws are pushed to the rear parts of the ear picking rollers by the first ear picking ridges and the second ear picking ridges, so that the corn ears and the corn straws are conveniently separated.

Preferably, the stalk-pulling roller and the snapping roller are of hollow structures. The manufacturing and the installation are convenient.

Preferably, the lower end of the stem pulling roller is provided with a spline groove structure, and the upper end of the snapping roller is provided with a spline shaft structure. The manufacture and installation are convenient.

Preferably, rotate on the header frame and install the edulcoration roller, the edulcoration roller is located the feeding system below, is equipped with two sets of spiral scrapers on the outer wall of edulcoration roller, and two sets of spiral scrapers revolve to opposite and extend along the axial spiral of edulcoration roller.

The rear side of edulcoration roller installation at lower cutting knife, the front side of ear of fruit conveyer belt, the downside of holding up the standing grain chain, after maize straw is cut off by lower cutting knife, carry backward via holding up the standing grain chain, at this in-process, the edulcoration roller that is driven by power input mechanism constantly rotates, and produce the contact with the straw, spiral scraper blade on the edulcoration roller can be cleared up maize straw lower extreme glues glutinous earth and weeds, be provided with two sets of spiral scraper blades to opposite soon on the edulcoration roller, can be with weeds to both sides propelling movement on the straw, guarantee self cleanness, avoid weeder winding weeds.

In order to further improve the cleaning capacity of the impurity removing roller, a transverse rib scraper blade is arranged on the outer wall of the impurity removing roller and extends along the axial direction of the impurity removing roller. The transverse rib scraper can scrape off soil adhered to the straw, so that the straw is effectively cleaned.

Preferably, the cross rib scraper blade is equipped with many, and many cross rib scraper blades encircle edulcoration roller circumference interval arrangement, can further improve the clean ability of edulcoration roller to gluing clay.

Preferably, the spiral scraper and/or the transverse rib scraper are/is provided with teeth at one end far away from the impurity removing roller. The tooth teeth can play a role of pulling weeds, so that the weeds wound on the impurity removing roller can be pulled off conveniently.

Regarding the arrangement form of the teeth, the teeth are arranged in a wave shape. The teeth are triangular and provided with a plurality of teeth.

In order to avoid winding weeds on the impurity removing roller, the fixed cutter is further arranged on the header rack and is positioned on the rear side of the impurity removing roller and is arranged at intervals with the impurity removing roller. Decide sword and edulcoration roller interval 2 to 3 millimeters, the cooperation of edulcoration roller is decided the sword and is used together, can prevent the winding debris of edulcoration roller, guarantees self cleanness.

Regarding the specific structure of the fixed knife, the fixed knife extends along the axial direction of the impurity removing roller, and the edge part of the fixed knife faces the impurity removing roller.

Regarding the concrete structure of spiral scraper blade, the spiral scraper blade comprises a plurality of blade subassemblies, and a plurality of blade subassemblies dock end to end in proper order and be the heliciform and arrange, and the butt joint department of blade subassembly is located the junction of two sets of spiral scraper blades. This arrangement mode is convenient for the spiral scraper shaping, when the spiral scraper damaged, only need change one section blade subassembly that damages can, make things convenient for the edulcoration roller to maintain.

Regarding the mounting structure of edulcoration roller, the both ends of edulcoration roller are equipped with the installation axle, and the edulcoration roller passes through the installation axle to rotate to be installed in the header frame.

Preferably, the distance between the front upper feeding roller and the front lower feeding roller is greater than the distance between the rear upper feeding roller and the rear lower feeding roller, namely, the opening between the front upper feeding roller and the front lower feeding roller is greater than the opening between the rear upper feeding roller and the rear lower feeding roller, so that the straws can smoothly enter and pass through the chopping channel.

Preferably, the rear upper feeding roller is a floating roller, so that when the feeding amount of the straws is large, the cutting channel can be ensured to be smooth in the straw conveying process, and the blockage phenomenon is effectively prevented.

Preferably, the cutter shaft of the chopper is provided with a plurality of chopper sets for chopping the straws.

Preferably, the cutter shaft of the chopper is in transmission connection with a front upper feeding roller, the front upper feeding roller is in transmission connection with a rear upper feeding roller and a middle lower feeding roller respectively, the middle lower feeding roller is in transmission connection with a front lower feeding roller and a rear lower feeding roller respectively, and the front upper feeding roller and the middle lower feeding roller rotate reversely.

Preferably, the transmission mode of the front upper feeding roller and the middle lower feeding roller is chain transmission, a reversing shaft is arranged below the middle lower feeding roller, two chain wheels which are respectively arranged at the end parts of the front upper feeding roller and the reversing shaft are positioned at the inner side of the chain to form forward transmission connection, and the chain wheel at the end part of the middle lower feeding roller is positioned at the outer side of the chain to form reverse transmission connection with the front upper feeding roller.

Preferably, the device also comprises a feeding transition shaft which is respectively in transmission connection with the cutter shaft of the chopper and the front upper feeding roller, namely the cutter shaft of the chopper is in transmission connection with the front upper feeding roller through the feeding transition shaft, so that the power transmission is more stable and reliable.

Preferably, a fixed knife is arranged behind the rear lower feeding roller, so that sundries wound or stuck on the rear lower feeding roller can be removed; in addition, the rear side of the fixed knife is matched with a chopping knife group on a chopper shaft to cut off the straws.

Preferably, a hanging groove with an upward opening is arranged at the front upper part of the chopping shell, and a cutting table hanging rod is arranged in the hanging groove. The cutting table hanging rod is fixedly connected to the cutting table rack, namely the front upper portion of the chopping shell is hung on the cutting table rack through the hanging groove and the cutting table hanging rod, and the chopping shell is convenient to disassemble and assemble.

Preferably, a chopping connecting rod is arranged below the front of the chopping shell, and the chopping connecting rod is detachably connected with a header connecting rod. Header connecting rod fixed connection cuts up the casing front lower place promptly and connects in the header frame through the cutting up connecting rod and the header connecting rod that can dismantle the connection in the header frame. The fastening connection structure is simple and convenient to operate.

In conclusion, the beneficial effects of the invention are as follows: 1. the clamping chain is wound on the clamping chain wheel, the clamping chain wheel is located in front of the stem pulling rollers, when the corn stalk picking device is used, the rotating directions of the two stem pulling rollers are opposite, the rotating directions of the two feeding rollers are opposite, the clamping chain drives corn stalks to move backwards, when the corn stalks reach the clamping chain wheel, the stem pulling rollers and the corn stalk picking rollers continue to pull the corn stalks and pick corn ears, the clamping chain continues to rotate, and the next conveying of the corn stalks is completed. The corn straw can not bypass the stalk-pulling roller under the driving of the clamping chain, the probability of failure of the stalk-pulling roller due to the winding of the broken leaves is reduced, and the production efficiency is improved. 2. Lower feeding roller in the front is set up between lower feeding roller and the back lower feeding roller, can effectually prevent that the straw from taking place blocking phenomenon at the in-process of carrying, and the passageway is cut up in the passing through that the guarantee straw can be smooth, and then has ensured the conveying efficiency of straw, convenient maintenance.

Drawings

FIG. 1 is a schematic diagram of a harvesting and shredding assembly for harvesting both ears and stalks according to the present invention;

FIG. 2 is a schematic structural diagram of a header in the ear-stem harvesting and chopping assembly of the present invention;

FIG. 3 is a schematic top view of a header of the ear-stem harvesting and shredding assembly of the present invention;

FIG. 4 is an enlarged schematic view of a portion A of FIG. 3;

FIG. 5 is an enlarged schematic view of a portion B of FIG. 3;

FIG. 6 is a schematic structural view of a reel feeding mechanism and a stalk clamping mechanism in the ear-stalk harvesting and chopping assembly according to the present invention;

fig. 7 is a schematic path diagram of the reel chain and the gripper chain of fig. 6;

FIG. 8 is a schematic view of the structure of the reel chain in the ear-stem harvesting and chopping assembly according to the present invention;

FIG. 9 is a schematic view of the structure of the holding chain in the ear-stem harvesting and chopping assembly of the present invention;

FIG. 10 is a schematic view of the structure of the stalk feed channel and the holding channel in the ear-stalk harvesting and shredding assembly according to the present invention;

FIG. 11 is a schematic front view of a header frame and a crop divider in a combined ear and stalk harvesting and chopping assembly according to the present invention;

FIG. 12 is a schematic view of the back structure of the header frame and the crop divider in the ear and stalk harvesting and chopping assembly of the present invention;

FIG. 13 is a schematic view of a divider of the ear-stem harvesting and shredding assembly of the present invention;

FIG. 14 is a schematic view of a clamping seat of the ear-stem harvesting and shredding assembly according to the present invention;

FIG. 15 is a schematic view of a hinged seat in the ear-stem harvesting and shredding assembly of the present invention;

FIG. 16 is a schematic view of the structure of the ear-stem harvesting and chopping assembly and the holding chain of the present invention;

FIG. 17 is a schematic perspective view of an ear and stem harvesting and chopping assembly according to the present invention;

FIG. 18 is a schematic diagram of a front view of the ear and stem harvesting chopper assembly of the present invention;

FIG. 19 is a schematic view of section C-C of FIG. 18;

FIG. 20 is a schematic top view of the structure of FIG. 18;

FIG. 21 is a schematic view of section D-D of FIG. 18;

FIG. 22 is a schematic perspective view of a stem pulling and ear picking gear box in the ear-stem harvesting and chopping assembly according to the present invention;

FIG. 23 is a schematic view of the front view of a stem pulling and ear picking gear box in the ear-stem harvesting and chopping assembly according to the present invention;

FIG. 24 is a schematic top view of a stem pulling and ear picking gearbox of the ear-stem harvesting and chopping assembly of the present invention;

FIG. 25 is a schematic structural view of section E-E of FIG. 24;

FIG. 26 is a schematic structural view of section F-F of FIG. 24;

FIG. 27 is a schematic view of the internal structure of a stem pulling and ear picking gear box in the ear-stem harvesting and chopping assembly according to the present invention;

FIG. 28 is a schematic view of the interior of the stem pulling and ear picking gear box of the ear-stem harvesting and chopping assembly of the present invention;

FIG. 29 is a schematic view of the interior of a stem pulling and ear picking gear box of the ear-stem harvesting and chopping assembly of the present invention;

FIG. 30 is a schematic view of section G-G of FIG. 29;

FIG. 31 is a schematic structural view of section H-H in FIG. 29;

FIG. 32 is a schematic perspective view of an ear-stalk harvesting and chopping assembly according to an embodiment of the present invention, showing the three-dimensional structure of the ear-plucking roller and the stalk-pulling roller;

FIG. 33 is a schematic cross-sectional view of an ear-plucking roller in an embodiment of an ear-stem harvesting and chopping assembly of the present invention;

FIG. 34 is a schematic cross-sectional view of a stalk pulling roll in an embodiment of an ear-stalk harvesting and shredding assembly of the present invention;

FIG. 35 is a schematic perspective view of an ear-picking roller and a stalk-pulling roller in another embodiment of the ear-stalk harvesting and chopping assembly of the present invention;

FIG. 36 is a schematic cross-sectional view of an ear-picking roller in another embodiment of the combined ear-stem harvesting and chopping assembly of the present invention;

FIG. 37 is a schematic cross-sectional view of a stalk pulling roll in another embodiment of the combined ear and stalk harvesting and chopping assembly of the present invention;

FIG. 38 is a schematic perspective view of an ear-stem harvesting and chopping assembly according to yet another embodiment of the present invention, showing the three-dimensional structure of the ear-plucking roller and the stem-pulling roller;

FIG. 39 is a schematic cross-sectional view of an ear-stalk harvesting and shredding assembly according to yet another embodiment of the present invention;

FIG. 40 is a schematic cross-sectional view of a stalk pulling roll in another embodiment of the combined ear and stalk harvesting and chopping assembly of the present invention;

FIG. 41 is a schematic diagram of the spiral flight in an embodiment of a spike-stalk harvesting and chopping assembly of the present invention;

FIG. 42 is a schematic diagram of the spiral flight in an alternative embodiment of the spike-stalk harvesting and chopping assembly of the present invention;

FIG. 43 is an enlarged structural view of a portion I in FIG. 42;

FIG. 44 is a bottom view of the structure of FIG. 41;

FIG. 45 is a bottom view of the structure of FIG. 42;

FIG. 46 is a schematic perspective view of an trash roller of an embodiment of a combined ear and stem harvesting and chopping assembly of the present invention;

FIG. 47 is a schematic perspective view of an trash roller in another embodiment of the spike-stalk harvesting and shredding assembly of the present invention;

FIG. 48 is a schematic view of the mounting of the trash removal roller and scraper on the header frame;

FIG. 49 is an enlarged view of a portion J of FIG. 48;

FIG. 50 is a schematic view of the shredder assembly of the present invention;

FIG. 51 is a perspective view of a chopper assembly of a both ear and stem harvesting chopper assembly of the present invention without showing a header hitch bar and a header link bar;

FIG. 52 is a diagram of the drive path at the left end of the chopping device in a spike-stalk harvest-chopping assembly of the present invention;

FIG. 53 is a schematic view of the chopper assembly of the present invention attached to the header of the harvester.

In the figure:

201. header frame: 202. ear plate: 211. hanging a connecting rod on the cutting table; 212. a header connecting rod;

301. chopping the shell; 302. a chopper shaft; 331. a front upper feeding roller; 332. then feeding the mixture to a feeding roller; 333. a front lower feed roller; 334. a middle feeding roller and a lower feeding roller; 335. a lower rear feed roller; 336. feeding a transition shaft; 337. a reversing shaft; 305. fixing a cutter; 306. a hanging groove; 307. the connecting rod is cut up.

501. A reel stand; 502. a clamping frame; 503. a feed channel; 504. a clamping channel; 505. adjusting a rod; 506. a support: 508. strip-shaped plate: 511. end reel stand: 512. a mounting seat: 521. anti-skid wheels; 522. a limiting wheel; 551. Steel pipe: 552. threaded rod: 553. fixing a nut: 554. a movable nut; 555. a card slot; 571. a front mounting shaft; 572. a rear mounting shaft; 573. a cone pulley mounting shaft; 574. an elastic adjustment device;

601. a reel chain; 602. a clamping chain; 611. a seedling pulling finger; 612. a seedling pulling outer chain plate; 613. a reel inner chain plate; 621. A clamping tooth; 622. clamping the inner chain plate; 623. clamping the outer chain plate;

701. rotating the cone pulley; 702. a reel tension wheel; 703. clamping the chain wheel; 704. a reel sprocket; 705. clamping the tension wheel; 706. clamping the pinch roller; 707. a connecting plate; 751. an adjustment device;

801. snapping a roll; 802. a reversing gear box of the snapping roll; 803. first ear picking ridges; 804. second ear picking ridges;

901. a stalk-pulling roller; 902. pulling stem ridges;

1001. a stalk pulling and ear picking gearbox body; 1002. a feeding roll shaft; 1003. a stalk-pulling roller shaft; 1004. a feeding roller shaft sleeve; 1005. a first stalk-pulling roller gear; 1006. a second stalk-pulling roller gear; 1007. a third stalk-pulling roller gear; 1008. a first feed roller gear; 1009. a second feed roller gear; 1010. a third feed roller gear; 1011. a gear box cover is pulled to pull stems and pick up ears;

1101. a feed roller; 1102. feeding ridges;

12. an impurity removal roller; 1201. helical flighting, 1202, cross rib flighting, 1203, mounting shaft, 1204, teeth, 1205, blade assembly;

13. a grain lifter, 1301 and a grain divider; 1302. a grain-supporting frame; 1303. a grain lifter; 1304. a protective housing; 1305. a seedling dividing shell; 1306. a first upper cover plate; 1307. a first side cover plate; 1308. a rear cover plate; 1309. a second upper cover plate; 1310. a rectangular plate; 1311. a second side cover plate; 1312. connecting a hinge; 1313. clamping the rod; 1314. a connection base; 1315. buckling; 1316. positioning a plate; 1317. clamping grooves; 1318. a rubber plate; 1319. a guard plate; 1320. a hinged seat; 1321. a supporting seat; 1322. a hinge plate; 1323. a bolt;

14. fixing a cutter;

15. and (5) a lower cutter.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

As shown in fig. 1 to 53, an ear-stem harvesting and chopping assembly comprises a header frame 201, wherein a feeding system, a stem pulling and ear picking unit and a conveying and chopping device are mounted on the header frame 201, the feeding system comprises a clamping chain 602, the stem pulling and ear picking unit comprises a pair of feeding rollers 1101 mounted on the front side of the top of a stem pulling and ear picking gear box 1001 and a pair of ear picking and stem pulling rollers corresponding to the feeding rollers 1101 and mounted on the rear side of the top of the stem pulling and ear picking gear box 1001, the upper portion of the feeding rollers 1101 is connected with a clamping chain wheel 703 matched with the clamping chain 602, the conveying and chopping device comprises a feeding end and an output end respectively located at the front end and the rear end of a chopping shell 301, a chopper knife shaft 302 is mounted in the chopping shell 301 close to the output end, a front upper feeding roller 331 and a rear upper feeding roller 332 mounted in the chopping shell 301 are sequentially arranged above the chopper knife shaft 302 from front to rear, and a front lower feeding roller 333, a middle lower roller 334 and a rear lower feeding roller 335 mounted in the chopping shell 301 are sequentially arranged below the chopper 302 from front to rear.

Both ends of the chopper shaft 302, the front upper feeding roller 331, the rear upper feeding roller 332, the front lower feeding roller 333, the middle lower feeding roller 334 and the rear lower feeding roller 335 extend out of the chopping housing 301 and are connected with a driving wheel. The rear part of the rear lower feeding roller 335 is provided with a fixed knife 305, the cutter shaft 302 of the chopper is provided with a plurality of chopper sets for chopping straws, and the specific structure of the chopper set is the prior art and is not described herein again.

As shown in fig. 3 to 10, the feeding system further comprises a reel feeding mechanism and a stem clamping mechanism, the reel feeding mechanism comprises a reel frame 501 and a reel chain 601 rotatably mounted thereon, the stem clamping mechanism comprises a clamping frame 502, the clamping chain 602 is rotatably mounted on the clamping frame 502, the rear end of the reel chain 601 is in transmission connection with the front end of the clamping chain 602, a reel finger 611 for shifting the stem is arranged outside the reel chain 601, and the reel finger 611 is perpendicular to the conveying directions of the reel outer chain plate 612, the reel inner chain plate 613 and the stem of the reel chain 601;

the front end of the reel stand 501 is provided with a reel tension wheel 702, and the front end of the reel chain 601 is arranged on the reel tension wheel 702.

The front and rear are based on the transmission path of the stalks as shown in fig. 10, the stalks are transported from the front end to the rear end of the feeding system, and the arrow direction in fig. 10 is from front to rear. A rotary tower wheel 701 is arranged at the joint of the reel stand 501 and the clamping stand 502, and the front end of the clamping chain 602 and the rear end of the reel chain 601 are both arranged on the rotary tower wheel 701. That is, the gripper chain 602 transmits power to the reel chain 601 through the rotating turret 701. A reel chain wheel 704 is arranged on the reel frame 501, the reel chain 601 is arranged on the rotary tower wheel 701, the reel tension wheel 702 and the reel chain wheel 704, and the reel tension wheel 702 is used for enabling the reel chain 601 to be in a tension state; the clamping frame 502 is provided with a clamping tension wheel 705 and a clamping compression wheel 706 for tensioning the clamping chain 602.

The upper and lower ends of the seedling pulling finger 611 are respectively and fixedly connected to two seedling pulling outer chain plates 612 or two seedling pulling inner chain plates 613 which are opposite to each other on the seedling pulling chain 601, and further, the seedling pulling finger 611 and the two seedling pulling outer chain plates 612 or the two seedling pulling inner chain plates 613 which are connected with the two ends of the seedling pulling finger are integrally formed. The seedling pulling fingers 611 are arranged on the seedling pulling outer chain plates 612, one seedling pulling finger 611 is arranged at every other pair of seedling pulling outer chain plates 612, or the seedling pulling fingers 611 are arranged on the seedling pulling inner chain plates 613, and one seedling pulling finger 611 is arranged at every other pair of seedling pulling inner chain plates 613.

A plurality of wheel tooth-shaped clamping teeth 621 which are positioned on the clamping inner chain plate 622 and the clamping outer chain plate 623 are arranged at intervals outside the clamping chain 602, and one side of the clamping chain 602, which is far away from the clamping chain wheel 703 and the rotating tower wheel 701, is an outer side. Namely, the outer sides of the clamping inner link plate 622 and the clamping outer link plate 623 are provided with gear-tooth-shaped clamping teeth 621.

A feeding channel 503 is formed between every two reel feeding mechanisms, a clamping channel 504 is formed between every two stalk clamping mechanisms, and the width of the left opening and the right opening at the front end of the clamping channel 504 is larger than that of the left opening and the right opening at the middle rear part of the clamping channel 504.

The two left and right clamping frames 502 between two adjacent clamping channels 504 correspond to a reel frame 501. In addition, the device also comprises two end seedling-pulling frames 511 positioned at the left and right sides of all the seedling-pulling frames 501, the rear ends of the two end seedling-pulling frames 511 are respectively and rotatably connected with the front ends of two clamping frames 502 positioned at the leftmost side and the rightmost side, and a feeding channel 503 is also formed between the end seedling-pulling frame 511 and the adjacent seedling-pulling frame 501. The stalks enter from the front end of the feeding channel 503 and are sequentially conveyed by the feeding channel 503 and the clamping channel 504 to be subjected to the subsequent treatment such as ear picking and the like.

The harvester header comprises an adjusting rod 505 and a support 506, wherein the adjusting rod 505 can connect the end part reel frame 511 to the header frame 201, the support 506 is fixedly connected to the header frame 201, a mounting seat 512 is arranged on the end part reel frame 511, and two ends of the adjusting rod 505 are respectively hinged to the mounting seat 512 and the support 506. The header frame 201 is a part of the corn harvesting header, and the opening and closing degree between the two end part reel frames 511 and the reel frames 501 adjacent to the two end part reel frames can be conveniently controlled by adjusting the adjusting rods 505, so that the cutting width of the whole corn harvesting header for harvesting straws can be adjusted, and the harvesting requirements for corns with different planting intervals can be met.

Specifically, the adjusting rod 505 includes two steel pipes 551 located at two ends and a threaded rod 552 located in the middle, one ends of the two steel pipes 551 close to the threaded rod 552 are fixedly connected with two fixing nuts 553 with opposite thread turning directions, two ends of the threaded rod 552 are respectively provided with threads matched with the threads of the two fixing nuts 553, and two ends of the threaded rod 552 respectively penetrate through the two fixing nuts 553 and extend into the two steel pipes 551. Furthermore, two movable nuts 554 with the same thread turning direction as the two fixed nuts 553 are respectively arranged on the threaded rod 552 near the two fixed nuts 553, and are used for fixing the adjusting rod 505, and a clamping groove 555 convenient for adjusting by a wrench is arranged in the middle of the threaded rod 552. I.e., the threads on threaded rod 552 on opposite ends of bayonet 555. The length of the adjusting rod 505 can be adjusted by using a wrench to clamp the clamping groove 555 and turning the threaded rod 552, so as to adjust the opening and closing degree between the end reel stand 511 and the reel stand 501 adjacent to the end reel stand. After the length of the adjusting rod 505 is adjusted, the adjusting rod 505 can be fixed by screwing the movable nut to be tightly attached to the adjacent fixed nut, so that the stability between the threaded rod 552 and the fixed nuts at the two ends of the threaded rod 552 can be guaranteed, and the stability of the straw conveying device for the straw conveying is further improved.

The clamping frame 502 is provided with the tensioning wheel set, the tensioning wheel set is positioned on one side, far away from the clamping channel 504, of the clamping frame 502, the two tensioning wheel sets between the left clamping channel 504 and the right clamping channel 504 are arranged asymmetrically, and compared with the tensioning wheel set, the installation position of the other tensioning wheel set is backward, so that the two opposite tensioning wheel sets cannot interfere with each other when the tensioning is adjusted, and the tensioning stroke is increased. Specifically, the tensioning wheel set comprises a clamping tensioning wheel 705 and a clamping tensioning wheel 706, the clamping tensioning wheel 705 and the clamping tensioning wheel 706 are connected through a connecting plate 707, the clamping tensioning wheel 706 is rotatably mounted on the clamping frame 502, and the clamping tensioning wheel 705 is hinged on the clamping frame 502 through an adjusting device 751. The front end part of the clamping frame 502 is provided with a front mounting shaft 571 and a rear mounting shaft 572 from front to back, and the joints of the left and right clamping frames 502 and the reel frame 501 connected with the clamping frames are provided with two cone pulley mounting shafts 573 which are respectively in a straight line with the front mounting shaft 571 and the rear mounting shaft 572 on the left and right clamping frames 502; a cone pulley mounting shaft 573 which is in a straight line with the front mounting shaft 571 and the rear mounting shaft 572 is arranged at the joint of the clamping frame 502 and the end reel frame 511 connected with the clamping frame. The front mounting shaft 571, the rear mounting shaft 572 and the cone pulley mounting shaft 573 on the same clamping frame 502 are connected by the strip-shaped plate 508, so that the mounting strength between the clamping frame 502 and the reel frame 501 or the end reel frame 511 connected thereto can be increased. Specifically, in two pinch roller sets between two adjacent left and right clamping channels 504, the adjusting device 751 of one of the pinch roller sets is hinged to the clamping frame 502 through the front mounting shaft 571, and the adjusting device 751 of the other pinch roller set is hinged to the clamping frame 502 through the rear mounting shaft 572, so that the mounting position of the other pinch roller set is backward compared with that of one pinch roller set, and the tensioning of the two opposite pinch roller sets is conveniently adjusted.

The reel feeding mechanism comprises a reel frame 501, a reel chain 601 or an end reel frame 511 which is rotatably arranged on the reel frame 501, and a reel chain 601 which is rotatably arranged on the end reel frame 511, and the stem clamping mechanism comprises a clamping frame 502 and a clamping chain 602 which is rotatably arranged on the clamping frame. A rotary step pulley 701 is arranged at the junction of the reel stand 501 or the end reel stand 511 and the clamping stand 502, the rotary step pulley 701 is mounted on a step pulley mounting shaft 573, and the front end of the clamping chain 602 and the rear end of the reel chain 601 are mounted on the rotary step pulley 701. That is, the gripper chain 602 transmits power to the reel chain 601 through the rotating turret 701.

The front end of the end reel frame 511 is connected with reel tension wheels 702 through an elastic adjusting device 574, and the left and right ends of the front end of the reel frame 501 are respectively connected with the reel tension wheels 702 through the elastic adjusting device 574. The rear end of the clamping frame 502 is rotatably provided with a clamping chain wheel 703, and the rear end of the clamping chain 602 is mounted on the clamping chain wheel 703. Two reel chain wheels 704 respectively corresponding to the two reel tension wheels 702 are arranged on the reel stand 501, a reel chain wheel 704 is arranged on the end reel stand 511, the reel chain 601 is arranged on the rotary tower wheel 701, the reel tension wheels 702 and the reel chain wheel 704, and the reel tension wheels 702 are used for enabling the reel chain 601 to be in a tensioned state; the clamping tension wheel 705 and the clamping pinch wheel 706 of the tension wheel set are used to tension the clamping chain 602.

The adjacent side edges of the two clamping frames 502 form a clamping channel for conveying stalks; when in design, the clamping frames 502 are in a strip-like plate shape, the two clamping frames 502 are positioned in the same horizontal plane, the rear end of each clamping frame 502 is installed on the header frame, and the number of the stalk clamping mechanisms can be set according to the size of the header frame; the clamping frame 502 is provided with a driving chain wheel set and a clamping chain 602 matched with the driving chain wheel set, the driving chain wheel set comprises a rotary cone pulley 701 arranged at the front end of the clamping frame 502, a clamping chain wheel 703 arranged at the rear end of the clamping frame 502, a clamping pressure pulley 706 and a clamping tension wheel 705 arranged on the clamping frame 502, the clamping pressure pulley 706 and the clamping tension wheel 705 are arranged at one side of the clamping frame 502 far away from a clamping channel, usually the clamping pressure pulley 706 and the clamping tension wheel are arranged close to the rotary cone pulley 701, the clamping chain 602 is arranged on the driving chain wheel set, so that the clamping chain 602 forms a longer conveying channel by matching the rotary cone pulley 701 with the clamping chain wheel 703, a triangular chain stable supporting structure is formed by matching the clamping tension wheel 705, the rotary cone pulley 701 and the clamping chain wheel, stable operation of the clamping chain 602 can be effectively ensured, stability of the clamping pressure pulley 706 and the clamping tension wheel 705 can be more effectively ensured when the clamping chain 602 conveys stalks, and adjustment of the clamping chain 602 is facilitated.

The chain positioning mechanisms matched with the clamping chains 602 are arranged on the adjacent side edges of the two clamping racks 502 at intervals respectively, and comprise anti-skid wheels 521 and limiting wheels 522 which are arranged on the clamping racks 502, in the design process, the anti-skid wheels 521 and the limiting wheels 522 are arranged at intervals along the front and back directions of the clamping racks 502, wherein the interval between the anti-skid wheels 521 and the side edges of the clamping racks 502 is larger than the distance between the limiting wheels 522 and the side edges of the clamping racks 502, the distance between each limiting wheel 522 on the clamping racks 502 and the side edges is equal, the distance between each anti-skid wheel 521 on the clamping racks 502 and the side edges is also equal, the clamping chains 602 can be conveniently supported by the side edges of the limiting wheels 522 close to the clamping racks 502, when the clamping chains 602 do not work, the clamping chains 602 are supported by the limiting wheels 522 for limiting, the clamping chains 602 on the two clamping channels are parallel, and the anti-skid wheels 521 far away from the side edges of the clamping racks 502 can facilitate the stalks to enter into the clamping chains 602 to form depressions, and then the limiting is carried out.

The antiskid wheel 521 and the spacing wheel 522 on the two clamping frames 502 are symmetrically arranged along the clamping channel formed by the two clamping frames 502, and the central axes of the antiskid wheel 521 and the spacing wheel 522 are located on the same vertical plane, in the design process, the antiskid wheel 521 on the two clamping frames is arranged opposite to the spacing wheel 522, the spacing wheel 522 on the clamping frame 502 on one side is corresponding to the antiskid wheel 521 on the clamping frame 502 on the other side, so that the stems are conveyed in the clamping channel to move along an S-shaped path, the clamping effect can be effectively guaranteed, the phenomenon of skidding is avoided, of course, the diameter of the antiskid wheel 521 during manufacturing is smaller than that of the spacing wheel 522, and the manufacturing cost can be saved.

The distance between the rotary tower wheel 701 and the chain positioning mechanism is greater than the distance between the anti-skid wheel 521 and the limiting wheel 522, the bolt for fixing the clamping rack 502 is arranged between the anti-skid wheel 521 and the limiting wheel 522 close to the clamping chain wheel 703, a certain distance is reserved between the chain positioning mechanism and the rotary tower wheel 701, more stalks can conveniently and stably enter the clamping channel, the bolt is arranged between the anti-skid wheel 521 at the tail end of the clamping channel and the limiting wheel 522, the distance between the anti-skid wheel 521 and the limiting wheel 522 is reduced, the stalks can be conveniently conveyed and prevented from being clamped at the tail end of the clamping channel.

The front ends of the two clamping frames 502 are respectively provided with a reel frame 501, the reel frame 501 is provided with a reel chain 601, a feeding channel 503 is formed by the two reel frames 501, and in design, the reel frames 501 arranged at the front ends of the two clamping frames 502 are in a flaring shape, so that more stalks can be conveniently collected, the stalks are controlled to enter the clamping channels, and the stalks are conveniently conveyed; during manufacturing, a rotary tower wheel 701 is arranged at the joint of the reel stand 501 and the clamping stand 502, the front end of the clamping chain 602 and the rear end of the reel chain 601 are both arranged on the rotary tower wheel 701, stable conveying of the stalks can be facilitated by controlling the reel chain 601 and the clamping chain 602 through the rotary tower wheel 701, a reel tension wheel 704 is arranged at the front end of the reel stand 501, a reel chain wheel 702 matched with the reel chain 601 is also arranged on the reel stand 501, and a stable triangular structure is formed by matching the reel chain wheel 702, the reel tension wheel 704 and the rotary tower wheel 701, so that the reel chain 601 arranged on the three is more stable when the stalks are conveyed.

As shown in fig. 11 to 15, the combine harvester further comprises a grain divider 1301, a grain support frame 1302 hinged on the header frame 201 is arranged above the grain divider 1301, a plurality of grain holding rods 1303 positioned above the grain divider 1301 are arranged on the grain support frame 1302, and the distance between the front ends of two adjacent grain holding rods 1303 is matched with the distance between two adjacent grain dividers 1301 below the grain holding rods 1303;

the divider 1301 is a casing formed by a plurality of covering plates, the periphery of the casing is closed, the lower part of the casing is open, and the divider 1301 comprises a protective casing 1304 and a dividing casing 1305 which is connected to the front end of the protective casing 1304 and is clamped on the reel stand 501.

The protective shell 1304 comprises a first upper covering plate 1306, first side covering plates 1307 and rear covering plates 1308, wherein the first upper covering plate 1306 is horizontally arranged, the first side covering plates 1307 are obliquely arranged on the left side and the right side of the first upper covering plate 1306, the rear covering plates 1308 are vertically connected to the rear end of the first upper covering plate 1306, the left side and the right side of the first upper covering plate 1307 are connected with the first side covering plates 1307, in design, the first side covering plates 1307 are obliquely arranged towards the outer sides of the first upper covering plate 1306, and plates close to the lower end edges of the first side covering plates 1307 are vertically arranged and are perpendicular to the plane where the first upper covering plate 1306 is located; the grass dividing housing 1305 comprises a second upper covering plate 1309 which is arranged at the front end of the first upper covering plate 1306 and inclines downwards, the front end of the second upper covering plate 1309 is connected with a rectangular plate 1310 arranged along the vertical direction, the left side and the right side of the second covering plate are provided with a second side covering plate 1311 connected with the first side covering plate 1307, meanwhile, the lower bottom end of the second inclined covering plate is flush with the lower bottom end of the rectangular plate 1310, when the grass dividing device 1301 is installed on a feeding system, and a grass dividing tensioning wheel at the front end of the feeding system extends out of the vertical plane where the rectangular plate 1310 of the grass dividing device 1301 is located. The divider 1301 is arranged into a semi-conical shell, so that the straw can be quickly divided in the working process conveniently, the rectangular plate 1310 arranged at the front end of the divider 1301 can be matched with a straw dividing tension wheel arranged at the front end of the straw dividing rack, the straws at the end part are pulled open by the straw dividing tension wheel, the straws can quickly enter a feeding channel, and the problem that the front end part of the divider 1301 is knocked down is effectively avoided.

The reel frames 501 on the left and right of the header frame 201 are adjustable structures, a seedling dividing shell 1305 connected to the front end of a protective shell 1304 is divided into a hinge structure and a fixed connection structure during manufacturing, a seedling divider 1301 arranged on feeding systems on the left and right sides of the header frame 201 is a swinging seedling divider 1301 hinged with the seedling dividing shell 1305, and a seedling divider 1301 between the two swinging seedling dividers 1301 is a seedling dividing shell 1305 fixedly connected to the front end of the protective shell 1304; when in design, the seedling dividers 1301 arranged on the left side and the right side of the header frame 201 comprise a protective shell 1304 hinged with side plates of the header frame 201 and a seedling dividing shell 1305 hinged with the front end of the protective shell 1304 and clamped at the front end of a feeding system, rubber plates 1318 are arranged on the left side plate and the right side plate of the seedling dividing shell 1305, the rubber plates 1318 cover a gap between the protective shell 1304 and the seedling dividing shell 1305, during manufacturing, a hinged baffle is arranged on an upper top plate of the seedling dividing shell 1305, an arc-shaped opening is formed in the hinged baffle, and a hinged bolt for hinging the seedling dividing shell 1305 on the protective shell 1304 is arranged on the arc-shaped opening. Through setting up rubber slab 1318 can prevent that debris from getting into divider 1301 inside by the clearance between protection casing 1304 and the divider casing 1305, and the reel frame 501 of both ends about on header frame 201 is adjustable, set up the divider 1301 front end that will be located on header frame 201 both ends about into hinge structure, can fully cooperate with tip reel frame 501, conveniently be located in the feeding channel of header frame 201 about both ends straw entering header, of course, the outer terminal surface of divider 1301 that is located on both ends feeding system about when the preparation is parallel and level mutually with the outer terminal surface of the left and right sides board of header frame 201.

A connecting hinge 1312 is arranged on the body of the protective shell 1304 near the rear end, and a clamping mechanism connected with the reel stand 501 is arranged in the seedling dividing shell 1305. The rear ends of the top plates of the grain dividers 1301 positioned at the left end and the right end are provided with connecting hinges 1312 hinged on the side plates of the header frame 201, the rear covering plates 1308 of the grain dividers 1301 positioned between the grain dividers 1301 are provided with connecting hinges 1312 connected on the clamping frame 502, and the grain dividers 1301 are hinged on the header frame 201 or the clamping frame 502 through the connecting hinges 1312, so that the disassembly, assembly and maintenance of workers can be facilitated; the clamping mechanism comprises clamping rods 1313 horizontally and fixedly connected to the left and right inner walls of the seedling dividing shell 1305, clamping seats arranged on the seedling shifting rack 501, a connecting base 1314 fixed on the seedling shifting rack 501 and a buckle 1315 fixedly connected to one side of the connecting base 1314 and matched with the clamping rods 1313, a positioning plate 1316 is arranged on the clamping rods 1313, a clamping groove 1317 matched with the positioning plate 1316 is arranged on the upper end face of the connecting base 1314, a clamping opening of the buckle 1315 vertically extends upwards and out of the upper end face of the connecting base 1314, and during manufacturing, in order to enable the seedling divider 1301 to be stably clamped on the feeding system, two clamping seats are required to be matched with the clamping rods 1313, and two parallel positioning plates 1316 corresponding to the clamping seats are arranged on the clamping rods 1313. Through with locating plate 1316 with clamp in pole 1313 the card clamps groove 1317 and buckle 1315 respectively, make more convenient when dismouting divider 1301 to have and support limiting displacement and effectively avoid the luffing motion of divider 1301. The rear end face of the grain divider 1301 is further provided with a guard plate 1319, the guard plate 1319 is made of rubber materials, the lower bottom edge of the guard plate 1319 is flush with the lower bottom edge of the rear end face of the grain divider 1301, and the outer end edges of the guard plates 1319 on the two adjacent grain dividers 1301 are attached to each other, so that harvested ear stems can be prevented from falling off due to the cooperation of the guard plates 1319 on the two adjacent grain dividers 1301.

A grain divider 1301, wherein a grain-supporting frame 1302 hinged on the header frame 201 is arranged above the grain divider 1301, a plurality of grain-supporting rods 1303 positioned above the grain divider 1301 are arranged on the grain-supporting frame 1302, and the distance between the front ends of two adjacent grain-supporting rods 1303 is matched with the distance between two adjacent grain dividers 1301 below the grain-supporting rods 1303; during design, hinge seats 1320 are installed on the left and right side plates of the header frame 201, and two ends of the grain-holding frame 1302 are respectively hinged on the hinge seats 1320 of the left and right side plates of the header frame 201; the hinge base 1320 comprises a support base 1321 horizontally fixed on the inner end surface of the side plate of the header frame 201, two hinge plates 1322 are arranged on the support base 1321 at intervals, hinge holes are arranged on the two hinge plates 1322, the grain-supporting frame 1302 is a rod body with two ends bent downwards, through holes corresponding to the hinge holes are arranged at the two ends of the rod body, the two ends of the grain-supporting frame 1302 are bent and not arranged between the two hinge plates 1322, bolts 1323 for hinging the grain-supporting frame 1302 are arranged in the through holes and the hinge holes, the grain-supporting frame 1302 is hinged on the hinge base 1320 through the bolts 1323, and the grain-supporting frame 1302 is a rod body with two ends bent downwards, so that the grain-supporting frame 1302 can have a certain height and is convenient for installing the grain-supporting rod 1303. A grain-supporting rod 1303 arranged on the grain-supporting frame 1302 is a rod body with the front end bent downwards and the front end attached to the top surface of the grain divider 1301, the rear end of the grain-supporting rod 1303 is fixedly connected to the grain-supporting frame 1302, and the front and rear directions of the grain-supporting rod 1303 are adapted to the clamping channel of the header frame 201; in order to facilitate the harvesting of the stalks, a stalk-holding limiting rod is arranged between two adjacent stalk-holding rods 1303 which are positioned right above the clamping channel, and when the stalks enter the conveying channel through the limiting rod, the stalk-holding rods 1303 above the stalk-holding limiting rod form a stalk-holding path with a large front end opening and a small rear end opening. The straw lifter 1303 with the bent front end is matched with the straw divider 1301, so that the lodging of the ear and stem during harvesting can be avoided, and the ear and stem can enter the conveying channel during cutting conveniently.

As shown in fig. 16 to 40, the ear-picking stalk-pulling rolls comprise an upper ear-picking roll 801 and a lower stalk-pulling roll 901, wherein the top of one ear-picking roll 801 is in transmission connection with a reversing gear box 802 for providing power for the ear-picking roll;

the stalk-pulling ear-picking gearbox body 1001 is rotatably connected with two stalk-pulling rollers 1003 which are vertically arranged, the stalk-pulling rollers 901 are installed on the stalk-pulling rollers 1003, one of the two stalk-pulling rollers 1003 is arranged on the left and the other one are arranged on the right, the stalk-pulling ear-picking gearbox body 1001 is also rotatably connected with two vertical arrangements and is positioned on a feeding roller shaft 1002 in front of the stalk-pulling rollers 1003, the feeding roller 1101 is installed on the feeding roller shaft 1002, one of the two feeding roller shafts 1002 is arranged on the left and the other one are arranged on the right, the two stalk-pulling rollers 1003 are in transmission connection, the two feeding roller shafts 1002 are in transmission connection, and one of the stalk-pulling rollers 1003 and one of the feeding roller shafts 1002 are in transmission connection.

The clamping chain 602 is wound on the clamping chain wheel 703, the clamping chain wheel 703 is positioned in front of the stem pulling roller 901, when the corn stalk harvester is used, the rotating directions of the two stem pulling rollers 901 are opposite, the rotating directions of the two feeding rollers 1101 are opposite, the clamping chain 602 drives the corn stalks to move backwards, when the corn stalks reach the clamping chain wheel 703, the stem pulling roller 901 and the ear picking roller 801 continue to pull the corn stalks, the corn ears are picked off, the clamping chain 602 continues to rotate, and the next conveying of the corn stalks is completed. The corn stalks can not bypass the stalk-pulling roll 901 under the driving of the clamping chain 602, thereby reducing the probability of the stalk-pulling roll 901 breaking down due to the winding of the broken leaves and improving the production efficiency.

A first stalk-pulling roller gear 1005 and a second stalk-pulling roller gear 1006 are installed on one stalk-pulling roller 1003, a third stalk-pulling roller gear 1007 engaged with the second stalk-pulling roller gear 1006 is installed on the other stalk-pulling roller 1003, a second feeding roller gear 1009 and a first feeding roller gear 1008 engaged with the first stalk-pulling roller gear 1005 are installed on one feeding roller 1002, a third feeding roller gear 1010 engaged with the second feeding roller gear 1009 is installed on the other feeding roller 1002, and the stalk-pulling roller 1003 provided with the first stalk-pulling roller gear 1005 and the feeding roller 1002 provided with the first feeding roller gear 1008 are arranged diagonally. When the corn cob picking roller reversing gearbox is used, power is transmitted to the first picking roller 801 by the picking roller reversing gearbox 802 to drive the first picking roller 801 and the first stalk-pulling roller shaft 1003 to rotate, the second stalk-pulling roller shaft 1003 is driven by the first stalk-pulling roller shaft 1003 through the second stalk-pulling roller gear 1006 and the third stalk-pulling roller gear 1007 to rotate, the first feeding roller shaft 1002 is driven by the first stalk-pulling roller shaft 1003 through the first stalk-pulling roller gear 1005 and the first feeding roller gear 1008 to rotate, and the second 2 feeding roller shaft 1002 is driven by the first feeding roller shaft 1002 through the second feeding roller gear 1009 and the third feeding roller gear 1010 to rotate. The structure is compact and the transmission is reliable.

The first stem-drawing roller gear 1005 and the first feeding roller gear 1008 are positioned at the lower part of the inner side of the stem-drawing ear-picking gear box 1001, the second stem-drawing roller gear 1006 and the third stem-drawing roller gear 1007 are positioned at the upper part of the inner side of the stem-drawing ear-picking gear box 1001, and the second feeding roller gear 1009 and the third feeding roller gear 1010 are positioned at the middle part of the inner side of the stem-drawing ear-picking gear box 1001. When the stem-pulling and ear-picking gearbox body 1001 is used, gears in the stem-pulling and ear-picking gearbox body are arranged in three layers, so that the risk of mutual interference is reduced, the space utilization rate is improved, and the structure is compact and the transmission is reliable.

The height of the upper end of the feeding roller shaft 1002 is larger than that of the upper end of the stalk-pulling roller shaft 1003. When the feeding roller is used, the feeding roller shaft 1002 is used for installing the feeding roller 1101, and the feeding roller 1101 is suspended at the upper end, so that the feeding roller shaft 1002 is longer in length, and the stability of the feeding roller 1101 is improved; the stalk-pulling roller shaft 1003 is used for mounting the stalk-pulling roller 901 and the snapping roller 801, and the stalk-pulling roller shaft 1003 can be shorter because the upper end of the snapping roller 801 is suspended.

A feeding roller shaft sleeve 1004 sleeved on a feeding roller shaft 1002 is arranged on the stem pulling and ear picking gear box 1001, and the feeding roller shaft 1002 is rotatably connected with the upper end of the feeding roller shaft sleeve 1004. When the feeding roller 1101 is used, the feeding roller 1002 is sleeved with the feeding roller shaft, and the feeding roller sleeve 1004 can improve the stability of the feeding roller 1002 and the feeding roller 1101.

The upper end of the stalk-pulling roll shaft 1003 is provided with a spline shaft structure, and the upper end of the feeding roll shaft 1002 is provided with a spline shaft structure. When in use, the utility model is convenient to install.

The upper end of the stalk-pulling ear-picking gear box body 1001 is arranged in an open mode, and the stalk-pulling ear-picking gear box cover 1011 is detachably arranged at the upper end of the stalk-pulling ear-picking gear box body 1001. The manufacture and installation of the stalk pulling and ear picking gearbox body 1001 are convenient.

The lower end of the stalk-pulling roller 1003 is rotatably connected with the bottom of the stalk-pulling ear-picking gearbox 1001, the stalk-pulling roller 1003 penetrates through a stalk-pulling ear-picking gearbox cover 1011 and is rotatably connected with the stalk-pulling ear-picking gearbox cover 1011, the lower end of the feeding roller 1002 is rotatably connected with the bottom of the stalk-pulling ear-picking gearbox cover 1001, and the feeding roller 1002 penetrates through the stalk-pulling ear-picking gearbox cover 1011 and is rotatably connected with the stalk-pulling ear-picking gearbox cover 1011. The manufacture and installation of the stalk pulling and ear picking gearbox body 1001 are convenient.

The distance between the central axes of the two stalk-pulling rollers 1003 is smaller than the distance between the central axes of the two feeding roller 1002; the width of the gap between the two stalk rolls 901 is smaller than the width of the gap between the two feed rolls 1101. When in use, the conveying of the corn straws is convenient.

The stalk-pulling ear-picking gearbox 1001 is rectangular in shape, and four corners of the stalk-pulling ear-picking gearbox 1001 have rounded corners. And each gear is convenient to mount.

The side of the feeding roller 1101 is connected with a plurality of feeding ridges 1102, the feeding ridges 1102 extend along the vertical direction, and the outer side of the feeding ridges 1102 is provided with a plurality of convex teeth. When the corn stalk feeding device is used, the feeding ridge 1102 shifts corn stalks to the rear part of the feeding roller 1101 along with the rotation of the feeding roller 1101.

The diameter of the upper end of the stem drawing roller 901 is larger than that of the lower end of the stem drawing roller, the side of the stem drawing roller 901 is connected with a plurality of stem drawing ridges 902, the stem drawing ridges 902 extend along the vertical direction, and the outer side of the stem drawing ridges 902 is vertically arranged. When the corn stalk puller is used, the gap between the lower ends of the two stalk pulling rollers 901 is large, so that corn stalks can be conveniently fed, and blockage is reduced.

In one embodiment: the cross section of the side part of the snapping roll 801 is octagonal, the side part of the snapping roll 801 is connected with a plurality of first snapping ridges 803, and the first snapping ridges 803 extend along the vertical direction. When the corn ear picking device is used, the first ear picking ridges 803 pick corn straws to the rear part of the ear picking roller 801 along with the rotation of the ear picking roller 801, so that corn ears and the corn straws are conveniently separated.

The cross section of the first snapping ridge 803 is round. Preferably, the first ear picking ridges 803 are made of threaded round steel, so that the friction force between the ear picking rollers 801 and the corn straws is improved, and the corn straws are pulled to the rear parts of the ear picking rollers 801 by the first ear picking ridges 803, so that the corn ears and the corn straws are conveniently separated.

The number of the first ear-picking ridges 803 is four, and the four first ear-picking ridges 803 are arranged corresponding to four spaced apart corners on the side of the ear-picking roller 801 one by one. When the corn ear picking device is used, the first ear picking ridges 803 are matched with the ear picking rollers 801 to push corn straws left and right, so that corn ears and corn straws can be conveniently separated.

In another embodiment: the cross section of the side of the snapping roll 801 is circular, the side of the snapping roll 801 is connected with a plurality of first snapping ridges 803, the first snapping ridges 803 are U-shaped, the open end of the snapping roll 801 faces the rotation direction of the snapping roll 801, and the first snapping ridges 803 are spirally distributed. When the corn ear picking device is used, the first ear picking ridges 803 pick corn straws to the rear part of the ear picking roller 801 along with the rotation of the ear picking roller 801, so that corn ears and the corn straws are conveniently separated.

The length of the lower side of the first ear-picking ridge 803 is longer than that of the upper side of the first ear-picking ridge 803. When the corn ear picking device is used, the friction force between the ear picking roller 801 and corn straws is improved, the corn straws are pushed to the rear part of the ear picking roller 801 by the first ear picking ridges 803, and the corn ears and the corn straws are conveniently separated.

The end part of the lower side of the first ear picking ridge 803 is inclined downwards. When the corn ear picking device is used, the friction force between the ear picking roller 801 and corn straws is improved, the corn straws are pushed to the rear part of the ear picking roller 801 by the first ear picking ridges 803, and the corn ears and the corn straws are conveniently separated.

In yet another embodiment: the cross section of the side part of the snapping roll 801 is circular, and the side part of the snapping roll 801 is connected with a second snapping ridge 804 which is spiral. When the corn ear picking device is used, the second ear picking ridges 804 are used for poking the corn straws to the rear part of the ear picking roller 801 along with the rotation of the ear picking roller 801, so that the corn ears and the corn straws are conveniently separated.

The side of the ear picking roller 801 is also connected with a plurality of first ear picking ridges 803, the first ear picking ridges 803 extend along the vertical direction, and the first ear picking ridges 803 are provided with gaps for the second ear picking ridges 804 to pass through. When the corn ear picking device is used, the friction force between the ear picking roller 801 and corn straws is improved, the first ear picking ridge 803 and the second ear picking ridge 804 pick the corn straws to the rear part of the ear picking roller 801, and the corn ears and the corn straws are conveniently separated.

The cross sections of the first ear-picking ridges 803 and the second ear-picking ridges 804 are round. Preferably, the first ear picking ridges 803 are made of threaded round steel, so that the friction force between the ear picking rollers 801 and the corn straws is improved, and the corn straws are pushed to the rear parts of the ear picking rollers 801 by the first ear picking ridges 803 and the second ear picking ridges 804, so that the corn ears and the corn straws are conveniently separated.

The stalk-pulling roller 901 and the snapping roller 801 are hollow structures. The manufacturing and the installation are convenient.

The lower end of the stalk-pulling roller 901 is provided with a spline groove structure, and the upper end of the snapping roller 801 is provided with a spline shaft structure. The manufacture and installation are convenient.

As shown in fig. 41 to 49, the header frame 201 is rotatably provided with an impurity removing roller 12, the impurity removing roller 12 is located below the feeding system, two sets of spiral scrapers 1201 are arranged on the outer wall of the impurity removing roller 12, and the two sets of spiral scrapers 1201 extend spirally in opposite directions and along the axial direction of the impurity removing roller 12. Referring to the attached drawings 1 and 8, an impurity removing roller 12 is installed on the rear side of a lower cutter 15, the front side of an ear conveyer belt and the lower side of a grain lifting chain are used for conveying corn stalks backwards through the grain lifting chain after the corn stalks are cut off by the lower cutter 15, in the process, the impurity removing roller 12 driven by a power input mechanism continuously rotates and is in contact with the stalks, spiral scrapers 1201 on the impurity removing roller 12 can clean the sticky soil and the weeds at the lower ends of the corn stalks, two sets of spiral scrapers 1201 with opposite rotation directions are arranged on the impurity removing roller 12, the weeds on the stalks can be pushed to two sides, the self-cleaning is guaranteed, and the phenomenon that a weed remover winds the weeds is avoided.

In order to further improve the cleaning ability of the trash roller 12, a transverse rib scraper 1202 is provided on the outer wall of the trash roller 12, and the transverse rib scraper 1202 extends in the axial direction of the trash roller 12. The transverse rib scrapers 1202 can scrape off soil adhered to the straws, and the straws are effectively cleaned. Referring to fig. 4 and 5, a plurality of transverse rib scrapers 1202 are provided, and the plurality of transverse rib scrapers 1202 are circumferentially arranged around the trash roller 12 at intervals, so that the cleaning capability of the trash roller 12 on the clay can be further improved.

The helical blade 1201 and/or the cross-rib blade 1202 are provided with teeth 1204 at the end facing away from the stripping roll 12. The teeth 1204 can pull the weeds, so that the weeds wound on the trash removal roller 12 can be pulled off. With respect to the arrangement of the teeth 1204, the teeth 1204 are arranged in a wave shape. The teeth 1204 are triangular in shape, and the teeth 1204 are provided in plurality.

In order to avoid winding weeds on the impurity removing roller 12, the fixed-blade type impurity removing roller further comprises a fixed blade 14, the fixed blade 14 is installed on the header rack 201, and the fixed blade 14 is located on the rear side of the impurity removing roller 12 and is arranged at an interval with the impurity removing roller 12. The fixed knife 14 and the impurity removing roller 12 are 2-3 mm apart, and the impurity removing roller 12 is used together with the fixed knife 14, so that impurities can be prevented from being wound on the impurity removing roller 12, and self-cleaning is guaranteed. The fixed knife 14 has a specific configuration in which the fixed knife 14 extends in the axial direction of the trash roller 12 and the edge of the fixed knife 14 faces the trash roller 12.

Regarding the specific structure of the spiral scraper 1201, the spiral scraper 1201 is composed of a plurality of blade assemblies 1205, the blade assemblies 1205 are sequentially butted end to end and arranged in a spiral shape, and the butted position of the blade assemblies 1205 is located at the intersection of two sets of spiral scrapers 1201. This arrangement mode is convenient for spiral scraper 1201 shaping, when spiral scraper 1201 damages, only need change one section blade subassembly 1205 that damages can, make things convenient for the edulcoration roller to maintain.

Regarding the mounting structure of the impurity removal roller 12, mounting shafts 1203 are provided at both ends of the impurity removal roller 12, and the impurity removal roller 12 is rotatably mounted on the header frame 201 via the mounting shafts 1203.

As shown in fig. 50 to 53, a shredding passage is formed between the upper front upper feeding roller 331 and the upper rear feeding roller 332, and the lower front feeding roller 333, the lower middle feeding roller 334, and the lower rear feeding roller 335, and the straw is discharged from the feeding end of the front end of the shredding housing 301 to the shredder blade shaft 302 through the shredding passage and then to the output end of the rear end of the shredding housing 301 in the direction indicated by the arrow in fig. 1. Further, the distance between the front upper feeding roller 331 and the front lower feeding roller 333 is greater than the distance between the rear upper feeding roller 332 and the rear lower feeding roller 335, that is, the opening between the front upper feeding roller 331 and the front lower feeding roller 333 is greater than the opening between the rear upper feeding roller 332 and the rear lower feeding roller 335, thereby ensuring that the straw can smoothly enter and pass through the chopping channel. The rear upper feeding roller 332 is preferably a floating roller, so that when the feeding amount of straws is large, the smooth chopping channel in the straw conveying process can be ensured, and the blockage phenomenon can be effectively prevented.

The chopper shaft 302 is connected to a power mechanism that powers it. The chopper knife shaft 302 is in transmission connection with a front upper feeding roller 331, the front upper feeding roller 331 is in transmission connection with a rear upper feeding roller 332 and a middle lower feeding roller 334 respectively, and the middle lower feeding roller 334 is in transmission connection with a front lower feeding roller 333 and a rear lower feeding roller 335 respectively. The front upper feeding roller 331 and the middle lower feeding roller 334 rotate reversely, specifically, as shown in fig. 2, a reversing shaft 337 is arranged below the middle lower feeding roller 334, the front upper feeding roller 331 and the reversing shaft 337 are in forward transmission connection, and the reversing shaft 337 and the middle lower feeding roller 334 are in reverse transmission connection. In this embodiment, the transmission connection between the upper front feeding roller 331 and the lower middle feeding roller 334 is chain transmission, two chain wheels respectively disposed at the ends of the upper front feeding roller 331 and the reversing shaft 337 are both located at the inner side of the chain to form a forward transmission connection, and the chain wheel at the end of the lower middle feeding roller 334 is located at the outer side of the chain to form a reverse transmission connection with the upper front feeding roller 331. Of course, the transmission connection mode of the front upper feeding roller 331 and the middle lower feeding roller 334 is not only one chain transmission, but also other transmission connection modes in the prior art can be adopted to enable the front upper feeding roller 331 and the middle lower feeding roller 334 to rotate reversely.

Furthermore, the invention also comprises a feeding transition shaft 336 which is respectively connected with the cutter shaft 302 and the front upper feeding roller 331 in a transmission way, namely, the cutter shaft 302 is connected with the front upper feeding roller 331 in a transmission way through the feeding transition shaft 336, so that the power transmission is more stable and reliable.

A hanging groove 306 with an upward opening is arranged at the front upper part of the chopping shell 301, and a cutting table hanging rod 211 is arranged in the hanging groove 306. The header hanging rod 211 is fixedly connected to the header frame 201, that is, the upper front of the chopping shell 301 is hung on the header frame 201 through the hanging groove 306 and the header hanging rod 211. A shredding connecting rod 307 is arranged at the front lower part of the shredding shell 301, the shredding connecting rod 307 is detachably connected with the header connecting rod 212, and specifically, in the embodiment, the shredding connecting rod 307 is connected with the header connecting rod 212 through a bolt. The header connecting rod 212 is fixedly connected to the header frame 201, i.e., the shredder housing 301 is connected to the header frame 201 at the front and lower portion thereof by the detachably connected shredder connecting rod 307 and the header connecting rod 212.

When the corn harvester stalk conveying and chopping device needs to be installed on a corn harvesting header, the header hanging rod 211 connected to the header rack 201 is firstly hung in the hanging groove 306, and then the header connecting rod 212 and the chopping connecting rod 307 respectively connected to the header bracket 201 and the chopping shell 301 are fastened by using bolts, so that the corn harvester stalk conveying and chopping device can be easily and conveniently installed on the corn harvesting header; when the corn harvester stalk conveying and chopping device needs to be detached from the corn harvesting header, the fastening bolts are firstly detached, and then the header hanging rod 211 is moved out of the hanging groove 306, so that the corn harvester stalk conveying and chopping device can be easily completed.

The power of the present invention is transmitted from the chopper shaft 302 to the header drive shaft and feed transition shaft 336.

Wherein, the header transmission shaft transmits to the reversing gear box 802 of the snapping roll, the transition shaft and the back licker-in.

The reversing gear box 802 of the snapping roll is transmitted to a first stalk-pulling roll 901, the first stalk-pulling roll 901 is transmitted to a stalk-pulling snapping gear box, and the stalk-pulling snapping gear box is transmitted to a second stalk-pulling roll 901 and a feeding roll 1101. The feed rollers 1101 deliver to the gripping chain 602 and to the reel chain 601.

The transition shaft is transmitted to the impurity removing roller 12, the reversing gear box of the conveying belt and the lower cutting knife 15, and the reversing gear box of the conveying belt is transmitted to the conveying belt.

The feed transition shaft 336 is transmitted to the front upper feed roller 331, the front upper feed roller 331 is transmitted to the rear upper feed roller 332 and the middle lower feed roller 334, and the middle lower feed roller 334 is transmitted to the front lower feed roller 333 and the rear lower feed roller 335.

Header transmission shaft, transition shaft, back licker-in, conveyer belt switching-over gear case conveyer belt are prior art, do not give unnecessary details here.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an ear-stem harvesting and chopping assembly, a serial communication port, including header frame (201), install feeding system on header frame (201), draw stem ear-picking unit and carry the comminution device, feeding system includes centre gripping chain (602), draw stem ear-picking unit including a pair of install draw stem ear-picking gear box (1001) top front side feed roller (1101) and a pair of correspond with feed roller (1101), and install in draw stem ear-picking gear box (1001) top rear side ear-picking stem-picking roller, feed roller (1101) upper portion is connected with centre gripping sprocket (703) with centre gripping chain (602) matched with, carry the comminution device including being located respectively and cutting up preceding input end and the output end of casing (301) front and back both ends, install chopper arbor (302) in chopping casing (301) near the output end, chopper arbor (302) front top is equipped with in proper order from the back and installs preceding upper feeding roller (331) and back upper roller (332) in chopping casing (301) from the front of feeding, chopper arbor (302) front lower side is equipped with in proper order in feeding lower part and feeding roller (335) from front lower part of casing (301), feed roller (334) and back lower part.

2. The harvesting and chopping assembly for both ear and stem as claimed in claim 1, wherein the feeding system further comprises a reel feeding mechanism and a stem clamping mechanism, the reel feeding mechanism comprises a reel frame (501) and a reel chain (601) rotatably mounted thereon, the stem clamping mechanism comprises a clamping frame (502), the clamping chain (602) is rotatably mounted on the clamping frame (502), the rear end of the reel chain (601) is in transmission connection with the front end of the clamping chain (602), a reel finger (611) for pulling the stem is arranged outside the reel chain (601), and the reel finger (611) is perpendicular to the conveying direction of the reel outer chain plate (612), the reel inner chain plate (613) and the stem of the reel chain (601);

a reel tension wheel (702) is arranged at the front end of the reel stand (501), and the front end of the reel chain (601) is arranged on the reel tension wheel (702);

a rotary cone pulley (701) is arranged at the joint of the reel frame (501) and the clamping frame (502), and the front end of the clamping chain (602) and the rear end of the reel chain (601) are both arranged on the rotary cone pulley (701);

a reel chain wheel (704) is arranged on the reel stand (501).

3. The harvesting and chopping assembly for both ear and stem as claimed in claim 2, wherein a feeding channel (503) is formed between every two reel feeding mechanisms, and a clamping channel (504) is formed between every two stem clamping mechanisms, the left and right opening width of the front end of the clamping channel (504) is larger than the left and right opening width of the middle and rear part of the clamping channel (504);

the left and right clamping frames (502) between the two adjacent clamping channels (504) correspond to a reel frame (501);

the device also comprises two end seedling pulling frames (511) which are positioned at the left side and the right side of all the seedling pulling frames (501), the rear ends of the two end seedling pulling frames (511) are respectively and rotatably connected with the front ends of two clamping frames (502) which are positioned at the leftmost side and the rightmost side, and a feeding channel (503) is also formed between the end seedling pulling frame (511) and the seedling pulling frame (501) which is adjacent to the end seedling pulling frame.

4. The harvesting and chopping assembly of claim 3, wherein the adjacent sides of the two holding frames (502) are respectively provided with a plurality of sets of chain positioning mechanisms at intervals, the chain positioning mechanisms are matched with the holding chains (602), and the chain positioning mechanisms comprise anti-skid wheels (521) and limiting wheels (522) arranged on the holding frames (502).

5. The cornstalk harvesting and chopping assembly as claimed in claim 4, further comprising a grain divider (1301), wherein a grain support (1302) hinged to the header frame (201) is arranged above the grain divider (1301), a plurality of grain support rods (1303) arranged above the grain divider (1301) are arranged on the grain support (1302), and the distance between the front ends of two adjacent grain support rods (1303) is adapted to the distance between two adjacent grain dividers (1301) below the grain support rods (1303).

6. The combined ear-stem harvesting and shredding assembly according to any one of claims 1 to 5, characterized in that the ear-picking stalk-pulling rollers comprise an upper ear-picking roller (801) and a lower stalk-pulling roller (901), wherein the top of one ear-picking roller (801) is drivingly connected to a reversing gearbox (802) powering it.

7. The harvesting and shredding assembly for both ear and stem according to claim 6, characterized in that the side of the feeding roller (1101) is connected with a plurality of feeding ridges (1102), the feeding ridges (1102) extend along the vertical direction, and the outer side of the feeding ridges (1102) is provided with a plurality of convex teeth;

the diameter of the upper end of the stem drawing roller (901) is larger than that of the lower end of the stem drawing roller, the side part of the stem drawing roller (901) is connected with a plurality of stem drawing ridges (902), the stem drawing ridges (902) extend along the vertical direction, and the outer side of the stem drawing ridges (902) is vertically arranged.

8. The harvesting and chopping assembly of both ears and stalks according to any one of claims 1 to 5, characterized in that the header frame (201) is rotatably provided with an impurity removing roller (12), the impurity removing roller (12) is positioned below the feeding system, the outer wall of the impurity removing roller (12) is provided with two groups of spiral scrapers (1201), the two groups of spiral scrapers (1201) rotate in opposite directions and extend spirally along the axial direction of the impurity removing roller (12);

the outer wall of the impurity removing roller (12) is provided with a transverse rib scraper (1202), and the transverse rib scraper (1202) extends along the axial direction of the impurity removing roller (12).

9. The scion-stalk harvesting chopper assembly of any of claims 1-5,

the distance between the front upper feeding roller (331) and the front lower feeding roller (333) is larger than the distance between the rear upper feeding roller (332) and the rear lower feeding roller (335);

the rear upper feeding roller (332) is a floating roller;

a plurality of shredding cutter groups are arranged on the cutter shaft (302) of the shredder;

the chopper cutter shaft (302) is in transmission connection with a front upper feeding roller (331), the front upper feeding roller (331) is in transmission connection with a rear upper feeding roller (332) and a middle lower feeding roller (334) respectively, the middle lower feeding roller (334) is in transmission connection with a front lower feeding roller (333) and a rear lower feeding roller (335) respectively, and the front upper feeding roller (331) and the middle lower feeding roller (334) rotate reversely.

10. The scion-stalk harvesting and chopping assembly as claimed in claim 9, further comprising a feed transition shaft (336) drivingly connected to the chopper shaft (302) and the front upper feed roller (331), respectively, i.e. the chopper shaft (302) is drivingly connected to the front upper feed roller (331) through the feed transition shaft (336);

a fixed knife (305) is arranged behind the rear lower feeding roller (335).