CN223231623U

CN223231623U - Adjustable corn ear picking plate device

Info

Publication number: CN223231623U
Application number: CN202422297853.8U
Authority: CN
Inventors: 张恒彬; 张鑫; 宋志凯; 秦换楠
Original assignee: Tianjin Tezhilu R & D Co ltd
Current assignee: Tianjin Tezhilu R & D Co ltd
Priority date: 2024-09-20
Filing date: 2024-09-20
Publication date: 2025-08-19
Anticipated expiration: 2034-09-20

Abstract

The utility model discloses an adjustable corn ear picking plate device, which comprises a gear box, an ear picking mechanism, a distance adjusting mechanism and an adjusting mechanism, wherein the gear box is arranged on a corn harvester, the ear picking mechanism is used for picking corn, the distance adjusting mechanism is used for adjusting the distance between the ear picking mechanisms, the ear picking mechanism is arranged on one side of the gear box, the distance adjusting mechanism is assembled on one side of the ear picking mechanism, the adjusting mechanism is arranged on one side of the gear box corresponding to the ear picking mechanism, and the adjusting mechanism is matched with the distance adjusting mechanism.

Description

Adjustable corn cob picking plate device

Technical Field

The utility model relates to the technical field of agricultural machinery, in particular to an adjustable corn cob picking plate device.

Background

In the prior art, a corn harvester is equipment for carrying out multiple operations such as one-time picking, peeling, threshing, cutting and returning of stems into fields on mature corns, a header is arranged at the front end of the corn harvester in a normal condition, the header is used for picking ears under a corn growth state, in the working process, along with the advancing of the corn harvester, corns are fed between two picking boards of the header, a stem pulling roller and a stem cutting wheel are arranged below the picking boards, the stem cutting wheel is used for cutting off the stems of the corns from roots, the cut corns are pulled downwards under the action of the stem pulling roller, when the stems are pulled to a certain degree, the corns are contacted with the picking boards, the stems pass through by utilizing gaps between the two picking boards, the ears of the corns are pulled by the picking boards, the ear picking operation is finished, and the ears separated from the stems are conveyed to the tail ends of the header along with a peeling chain and collected into a channel after being pulled by the dragon.

In the process of picking the corn, the distance between the two corn picking plates is a key factor influencing the corn picking effect, and too close distance can lead corn stalks to slide into the middle of the two corn picking plates smoothly. Moreover, when corn stalks slide into the middle of the two ear picking plates, the two ear picking plates which are too close in distance easily cause the corns to be pulled down and broken by the pulling of the stalk pulling roller, and further cause the corns to enter the peeling channel to block the equipment. The two ear picking plates far away are also unfavorable to the ear picking operation of corns, the seeds of the corn ears close to the ear handles are easily separated or damaged by the action of the ear picking plates, or the corn with partial small ears is cut up and returned to the field along with stems, in order to meet the requirement of adjusting gaps when the ear picking plates are switched to an operation environment, the mounting holes of the ear picking plates are generally designed into a long circle, when the gap of the ear picking plates is required to be adjusted, screws for fixing the ear picking plates are loosened, the screws are manually adjusted, and then the screws are screwed, however, the mode of adjusting the ear picking plates is complicated, the operation efficiency of a harvester is easily influenced by delaying more time, the harvesting time is delayed, the position of each ear picking plate cannot be accurately adjusted, the gaps between the two ear picking plates are inconsistent, and the like are further caused, and the harvesting effect of the corns is influenced.

The Chinese patent application number 201510188996.8 discloses a corn cutting table with self-adjusting ear picking plate gap, which comprises a frame, a gear box, a stalk pulling roller assembly, an ear picking plate assembly and a seedling pulling chain assembly, wherein the frame comprises a main frame, a chain protection plate and a chain protection plate supporting plate, the stalk pulling roller assembly comprises a stalk pulling knife roller, a ball head, a connecting fixing sleeve and a leading-in cone, the ear picking plate assembly comprises an ear picking plate, a rotating shaft, an ear picking plate gap adjusting device and a spring adjusting device, and the seedling pulling chain assembly comprises a seedling pulling chain, a driving chain wheel, a driven chain wheel and a driven chain wheel tensioning adjusting device. However, the corn header with the self-adjusting corn picking plates capable of adjusting the gaps only can adjust the single corn picking plate structure, the positions of multiple groups of corn picking plate structures cannot be uniformly adjusted, the adjusting mode is complex, the gap adjustment of the corn picking plates can be realized only by matching multiple groups of components, and the using cost is high.

Disclosure of utility model

The utility model aims to provide an adjustable corn cob picking plate device.

In order to achieve the above purpose, the technical scheme provided by the utility model is as follows:

The adjustable corn ear picking plate device comprises a gear box, an ear picking mechanism used for picking corn, a distance adjusting mechanism used for adjusting the distance between the ear picking mechanisms and an adjusting mechanism used for adjusting the positions of the ear picking mechanisms, wherein the gear box is arranged on a corn harvester, the ear picking mechanism is arranged on one side of the gear box, the distance adjusting mechanism is assembled on one side of the ear picking mechanism, and the adjusting mechanism is arranged on one side of the gear box corresponding to the ear picking mechanism.

The ear picking mechanism comprises two ear picking substrates, two ear picking side plates and a roller assembly, wherein the two ear picking substrates are symmetrically arranged on one side of the gear box and fixedly connected with the gear box, the two ear picking side plates are respectively arranged on one side, away from each other, of the two ear picking substrates and are fixedly connected with the corresponding ear picking substrates, the two roller assembly is provided with two groups, and the two groups of roller assemblies are respectively arranged on the inner sides of the bottoms of the two groups of ear picking substrates.

The rotary roller assembly comprises a rotary roller base, a picking rotary roller and a rotary roller end, wherein the rotary roller base is arranged at the bottom of the picking base plate and fixedly connected with the picking base plate, the picking rotary roller is arranged at one end of the rotary roller base away from the gear box and is in transmission connection with the picking shaft of the gear box through a rotating shaft, the rotary roller end is arranged at the inner side of one end of the picking side plate away from the gear box and is fixedly connected with the picking side plate, and the rotary roller end is in rotary connection with one end of the picking rotary roller base through a mounting frame and is away from the picking rotary roller.

Still including the direction subassembly, the direction subassembly is equipped with two sets of, two sets of direction subassemblies symmetrical arrangement are in two sets of pluck ear of grain base plate is kept away from the one end of gear box, and the direction subassembly includes direction mounting panel, direction curb plate and direction base plate, the direction mounting panel sets up pluck ear of grain base plate is kept away from the one end of gear box and with pluck ear of grain base plate fixed connection, the direction curb plate sets up one side of direction mounting panel and with direction mounting panel fixed connection, the direction base plate sets up the lower part of direction mounting panel and through the bolt with direction mounting panel fixed connection, the direction base plate adopts the kink type structure, the direction mounting panel the direction curb plate with the direction base plate constitutes double-deck shovel form guide structure altogether.

The adjustable distance mechanism comprises fixed ear picking plates, adjustable ear picking plates and a distance adjusting component, wherein the fixed ear picking plates are arranged on the inner side of the upper end of one group of ear picking plates and are fixedly connected with the corresponding ear picking plates, the adjustable ear picking plates are arranged on the inner side of the upper end of the other group of ear picking plates and are in sliding connection with the corresponding ear picking plates, and the distance adjusting component is arranged on the outer side of the ear picking plates and is connected with the adjustable ear picking plates.

The distance adjusting assembly comprises a distance adjusting rotating shaft, a distance adjusting installation seat and a distance adjusting limiting block, wherein the distance adjusting rotating shaft is arranged on the outer side of the ear picking side plate and is in rotary connection with the ear picking side plate through a base, the distance adjusting installation seat is provided with two groups, the distance adjusting installation seat is symmetrically arranged at two ends of the distance adjusting rotating shaft and is fixedly connected with the distance adjusting rotating shaft, one end of the distance adjusting rotating shaft, away from the distance adjusting installation seat, is in rotary connection with the side part of the ear picking plate through the rotating shaft, the distance adjusting limiting block is provided with two groups, the distance adjusting limiting block is correspondingly arranged on the upper parts of two ends of the ear picking base plate and is fixedly connected with the ear picking base plate, and the distance adjusting limiting block is positioned at two sides of the ear picking plate.

The gear box, the ear picking mechanism and the distance adjusting mechanism are all provided with a plurality of groups, and the gear box, the ear picking mechanism and the distance adjusting mechanism are arranged on the corn harvester at intervals side by side.

The adjusting mechanism comprises an adjusting base, an adjusting installation rod and an adjusting fixing ring, wherein the adjusting base is arranged on one group of side parts of the gear box and is fixedly connected with the corresponding gear box, the adjusting installation rod is arranged on one side of the adjusting base and is fixedly connected with the adjusting base through a positioning component, the adjusting fixing ring is provided with a plurality of corresponding groups of spike picking mechanisms, the adjusting fixing ring is arranged on the adjusting installation rod at intervals side by side and is fixedly connected with the adjusting installation rod, and the adjusting fixing ring is arranged on one side of the spike picking mechanisms and is correspondingly arranged with the distance adjusting rotating shaft.

The locating component comprises a locating support and a locating clamp, the locating support is arranged on one side, far away from the gear box, of the adjusting base and is fixedly connected with the adjusting base, the locating clamp is provided with a plurality of groups, the locating clamps are arranged on one side, close to the adjusting installation rod, of the locating support at intervals side by side and are fixedly connected with the locating support, and the locating clamp is clamped on the side portion of the adjusting installation rod through bolts.

Still include flail knife mechanism, flail knife mechanism includes flail knife base and cutting flail knife, the flail knife base sets up in one of them a set of the bottom of plucking the ear sideboard and with corresponding pluck ear sideboard fixed connection, the inside flail knife pivot that is equipped with of flail knife base, the flail knife pivot pass through worm gear structure with the flail knife axle transmission of gear box is connected, the cutting flail knife is equipped with two sets of, two sets of cutting flail knife dislocation relative arrangement is in the one end of flail knife pivot and through flail knife base plate and flail knife pivot fixed connection.

The beneficial effects of the utility model are as follows:

The corn picking plate is provided with the corn picking mechanism and the adjustable distance mechanism to be matched with each other to form an adjustable corn picking plate structure, the adjusting mode is simple and quick, the corn picking plate can be adjusted according to the thickness of crop stalks, so that harvesting operations are carried out on crops of different varieties, loss of seeds is avoided, and the corn picking plate is provided with the adjusting mechanism, so that the positions of the multiple groups of corn picking mechanisms can be uniformly adjusted at the same time, the corn picking plate is quick in adjustment, and the use cost is low.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the cooperation of the gear box and the ear picking mechanism of the present utility model;

FIG. 3 is a schematic view of the guide assembly of the present utility model in combination with a snapping mechanism;

FIG. 4 is a schematic diagram of the cooperation of several sets of gearboxes, several sets of ear picking mechanisms, and several sets of adjustable distance mechanisms according to the present utility model;

Fig. 5 is a schematic view of the cooperation of the adjusting mechanism of the present utility model with one of the sets of ear picking mechanisms.

The device comprises a gear box, a spike picking substrate, a spike picking edge plate, a roller base, a spike picking roller, a roller end, a guide mounting plate, a guide side plate, a guide substrate, a fixed spike picking plate, an adjustable spike picking plate, a distance adjusting rotating shaft, a distance adjusting mounting seat, a distance adjusting limiting block, a distance adjusting base, a distance adjusting mounting rod, a distance adjusting fixing ring, a distance adjusting support, a distance adjusting bracket, a distance adjusting clamp, a distance adjusting base, a distance adjusting flail knife base and a distance cutting flail knife.

Detailed Description

The utility model is described in further detail below with reference to the accompanying drawings,

The utility model discloses an adjustable corn ear picking plate device, which comprises a gear box 1, wherein the gear box 1 is arranged on a corn harvester, and further comprises an ear picking mechanism for picking corn, a distance adjusting mechanism for adjusting the distance between the ear picking mechanisms and an adjusting mechanism for adjusting the position of the ear picking mechanism, the ear picking mechanism is arranged on one side of the gear box 1, the distance adjusting mechanism is assembled on one side of the ear picking mechanism, and the adjusting mechanism is arranged on one side of the gear box 1 corresponding to the ear picking mechanism.

The ear picking mechanism comprises an ear picking base plate 2, an ear picking side plate 3 and a roller assembly, wherein the ear picking base plate 2 is provided with two groups, the two groups of ear picking base plates 2 are symmetrically arranged on one side of the gear box 1 and fixedly connected with the gear box 1, the ear picking side plate 3 is provided with two groups, the two groups of ear picking side plates 3 are respectively arranged on one side, away from each other, of the two groups of ear picking base plates 2 and fixedly connected with the corresponding ear picking base plates 2, the roller assembly is provided with two groups, the two groups of roller assemblies are respectively arranged on the inner sides of the bottoms of the two groups of ear picking base plates 2, the ear picking mechanism is matched with the ear picking base plates 2, the ear picking side plates 3 and the roller assembly to form an ear picking structure to meet the ear picking requirement in the corn harvesting process, the ear picking base plate 2 is used for forming the base plate structure together with the ear picking base plate 3 to meet the installation requirement of the roller assembly, and the roller assembly is used for separating the gear box under the action of the ear picking base plates 2 and the ear picking side plate 3, and the ear picking mechanism is matched with the ear picking mechanism shown in the schematic diagram 2.

The rotary roller assembly comprises a rotary roller base 4, a rotary roller 5 and a rotary roller end 6, wherein the rotary roller base 4 is arranged at the bottom of the rotary roller base 2 and is fixedly connected with the rotary roller base 2, the rotary roller 5 is arranged at one end of the rotary roller base 4 far away from the gear box 1 and is in transmission connection with a rotary shaft of the gear box 1 through a rotary shaft, the rotary roller end 6 is arranged at the inner side of one end of the rotary roller 3 far away from the gear box 1 and is fixedly connected with the rotary roller 3, the rotary roller end 6 is in rotary connection with one end of the rotary roller 5 far away from the rotary roller base 4 through a mounting frame, the rotary roller assembly is matched with the rotary roller end 6 through the rotary roller base 4, the rotary roller 5 and the rotary roller end 6, and is used for carrying out stalk-ear separation on corn, wherein the rotary roller base 4 is used for providing mounting support for the rotary roller 5 and protecting a transmission structure between the rotary roller 5 and the gear box 1, the rotary roller 5 is used for rotating under the action of the gear box 1 so as to carry out stalk-ear separation on corn, and the rotary roller end 6 is used for meeting the mounting requirement of the rotary roller 5.

The harvester is characterized by further comprising two groups of guide components, wherein the two groups of guide components are symmetrically arranged at one ends of the two groups of spike picking base plates 2 far away from the gearbox 1, the guide components comprise a guide mounting plate 7, a guide side plate 8 and a guide base plate 9, the guide mounting plate 7 is arranged at one end of the spike picking base plate 2 far away from the gearbox 1 and is fixedly connected with the spike picking base plate 2, the guide side plate 8 is arranged at one side of the guide mounting plate 7 and is fixedly connected with the guide mounting plate 7, the guide base plate 9 is arranged at the lower part of the guide mounting plate 7 and is fixedly connected with the guide mounting plate 7 through bolts, the guide base plate 9 adopts a bent structure, the guide mounting plate 7, the guide side plate 8 and the guide base plate 9 are combined to form a double-layer shovel-shaped guide structure, the guide components are matched with the guide mounting plate 7, the guide side plate 8 and the guide base plate 9, the harvester is used for guiding crops in the spike picking process, the guide side plate 8 is used as a guide structure of the side part of the guide mounting plate 7, the guide base plate 9 is used for guiding the crops under the action of the guide mounting plate 7, the guide structure can meet the accurate throwing and guide requirements of the crop stalks, and the harvester can be matched with the straw picking mechanism according to the schematic view shown in the schematic view.

The adjustable distance mechanism comprises fixed ear picking plates 10, adjustable ear picking plates 11 and distance adjusting components, wherein the fixed ear picking plates 10 are arranged on the inner side of the upper ends of one group of ear picking plates 2 and fixedly connected with the corresponding ear picking plates 2, the adjustable ear picking plates 11 are arranged on the inner side of the upper ends of the other group of ear picking plates 2 and slidingly connected with the corresponding ear picking plates 2, the distance adjusting components are arranged on the outer sides of the ear picking side plates 3 and connected with the adjustable ear picking plates 11 corresponding to the adjustable ear picking plates 11, the adjustable distance adjusting mechanism is matched with the fixed ear picking plates 10, the adjustable ear picking plates 11 and the distance adjusting components to form the adjustable ear picking plates to adjust according to the thickness of crop stalks so as to harvest different varieties of crops, the fixed ear picking plates 10 are used as fixed ear picking plates on the ear picking mechanisms, the adjustable ear picking plates 11 are used as adjustable ear picking plates on the ear picking mechanisms, the distance adjusting components are used for adjusting the positions of the adjustable ear picking plates 11 so as to adjust the distance between the adjustable ear picking plates 11 and the fixed ear picking plates 11 according to the thickness of the different varieties of the crops.

The distance adjusting assembly comprises a distance adjusting rotating shaft 12, a distance adjusting installation seat 13 and distance adjusting limiting blocks 14, wherein the distance adjusting rotating shaft 12 is arranged on the outer side of the ear picking side plate 3 and is in rotary connection with the ear picking side plate 3 through a base, the distance adjusting installation seat 13 is provided with two groups, the two groups of distance adjusting installation seats 13 are symmetrically arranged at two ends of the distance adjusting rotating shaft 12 and are fixedly connected with the distance adjusting rotating shaft 12, one end of the distance adjusting installation seat 13 away from the distance adjusting rotating shaft 12 is in rotary connection with the side part of the adjustable ear picking plate 11 through the rotating shaft, the distance adjusting limiting blocks 14 are provided with two groups, the two groups of distance adjusting limiting blocks 14 are correspondingly and symmetrically arranged at the upper parts of two ends of the ear picking base plate 2 and are fixedly connected with the ear picking base plate 2, the two groups of distance adjusting limiting blocks 14 are positioned at two sides of the adjustable ear picking plate 11, the distance adjusting assembly is matched with the distance adjusting limiting blocks 14 through the distance adjusting rotating shaft 12, the distance adjusting installation seat 13, the adjustable ear picking plate 11 is adjusted in position, wherein the distance adjusting rotary shaft 12 is used for providing rotary support for the distance adjusting installation seat 13, the distance adjusting installation seat 13 is used for rotating under the action of the distance adjusting rotary shaft 12 to drive the adjustable ear picking plate 11 to slide along the ear picking substrate 2, so that the position of the adjustable ear picking plate 11 is adjusted, the distance between the adjustable ear picking plate 11 and the fixed ear picking plate 10 is adjusted, the distance adjusting limiting block 14 is used for limiting the adjustable ear picking plate 11 to prevent the phenomenon of offset or falling in the sliding process of the adjustable ear picking plate 11, and when the distance between the adjustable ear picking plate 11 and the fixed ear picking plate 10 is adjusted, the distance adjusting rotary shaft 12 is rotated, so that the distance adjusting installation seat 13 drives the adjustable ear picking plate 11 to slide along the ear picking substrate 2, and the distance between the adjustable ear picking plate 11 and the fixed ear picking plate 10 can be adjusted.

The gear boxes 1, the ear picking mechanisms and the distance adjusting mechanisms are all provided with a plurality of groups, the gear boxes 1, the ear picking mechanisms and the distance adjusting mechanisms are arranged on the corn harvester side by side at intervals, and the matching schematic diagrams of the gear boxes 1, the ear picking mechanisms and the distance adjusting mechanisms are shown in figure 4.

The adjusting mechanism comprises an adjusting base 15, adjusting mounting rods 16 and adjusting fixing rings 17, wherein the adjusting base 15 is arranged on the side part of one group of gear boxes 1 and is fixedly connected with the corresponding gear boxes 1, the adjusting mounting rods 16 are arranged on one side of the adjusting base 15 and are fixedly connected with the adjusting base 15 through positioning components, the adjusting fixing rings 17 are provided with a plurality of corresponding groups of ear picking mechanisms, the adjusting fixing rings 17 are arranged on the adjusting mounting rods 16 at intervals side by side and are fixedly connected with the adjusting mounting rods 16, the adjusting fixing rings 17 are respectively arranged on one side of the groups of ear picking mechanisms and are correspondingly arranged with the adjusting rotating shaft 12, the adjusting mechanisms are matched with the adjusting fixing rings 17 through the adjusting base 15, the adjusting mounting rods 16 and the position adjusting structures of the groups of ear picking mechanisms to adjust the positions of the groups of ear picking mechanisms according to actual use requirements, the adjusting base 15 is used as the adjusting mounting structures on the gear boxes 1 and is used for providing mounting support for the adjusting mounting rods 16 through the positioning components, the adjusting fixing rings 17 are used for providing mounting support for the adjusting fixing rings 17, the adjusting fixing rings 17 are used as the mounting fixing structures on the groups of the ear picking mechanisms, and the positions of the groups of the ear picking mechanisms can be matched with the adjusting mechanisms through the adjusting fixing rings 17, and the positions of the adjusting mechanism groups of the ear picking mechanisms are shown in the schematic diagram 5.

The locating component includes locating support 18 and location clamp 19, locating support 18 sets up in the one side of keeping away from gear box 1 of adjusting the base 15 and with adjusting base 15 fixed connection, location clamp 19 is equipped with a plurality of groups, a plurality of groups of location clamp 19 interval arrangement side by side is close to the one side of adjusting installation pole 16 and with locating support 18 fixed connection at locating support 18, locating clamp 19 passes through the bolt cartridge and is in the lateral part of adjusting installation pole 16, locating component passes through locating support 18 and location clamp 19 cooperation, will adjust the one side of installation pole 16 at adjusting base 15, wherein, locating support 18 is used for providing the installation support for locating clamp 19, location clamp 19 is used for providing the installation support for adjusting installation pole 16 in order to assemble the one side at adjusting base 15 with adjusting installation pole 16.

Still include flail mechanism, flail mechanism includes flail base 20 and cutting flail 21, flail base 20 sets up the bottom of one of them a set of plucking ear sideboard 3 and with plucking ear sideboard 3 fixed connection that corresponds, flail base 20 is inside to be equipped with the flail pivot, the flail pivot passes through worm gear structure and is connected with the flail shaft transmission of gear box 1, cutting flail 21 is equipped with two sets of, two sets of cutting flail 21 dislocation relative arrangement is in the one end of flail pivot and through flail base plate and flail pivot fixed connection, flail mechanism passes through flail base 20 and cutting flail 21 cooperation, the flail structure that constitutes plucking ear mechanism bottom is in order to cut the stem stalk of smashing the operation at the harvesting operation in-process, wherein, flail base 20 is used for providing the erection support for the flail pivot, cutting flail 21 is used for rotating under the drive of flail pivot in order to cut the stem stalk of smashing the crop at the harvesting operation in-process.

Wherein, the distance between the adjustable ear picking plates 11 can be adjusted by the distance adjusting mechanism or the positions of a plurality of groups of ear picking mechanisms can be adjusted by the adjusting mechanism, thereby meeting the harvesting requirements of different crops.

Working principle:

in the process of harvesting crops, the position of the adjustable ear picking plate 11 can be adjusted through the distance adjusting component according to the thickness of crop stalks, so that the distance between the fixed ear picking plate 10 and the adjustable ear picking plate 11 is adjusted to harvest different varieties of crops, and the position of the adjusting fixing rings 17 can be adjusted by adjusting the position of the adjusting mounting rods 16, so that the position of the ear picking mechanism is adjusted.

The corn harvester has the beneficial effects that the corn harvester is provided with the corn picking mechanism and the adjustable distance mechanism to form an adjustable corn picking plate structure, the adjusting mode is simple and quick, the corn picking plate can be adjusted according to the thickness of crop stalks, so that harvesting operations can be carried out on crops of different varieties, loss of seeds is avoided, and the corn harvester is provided with the adjusting mechanism, so that the positions of a plurality of groups of corn picking mechanisms can be uniformly adjusted at the same time, the adjustment is quick, and the use cost is low.

The foregoing describes one embodiment of the present utility model in detail, but the disclosure is only a preferred embodiment of the present utility model and should not be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by the present utility model.

Claims

1. The utility model provides a maize plucking board device with adjustable, includes gear box (1), gear box (1) are arranged on the maize picker, and its characterized in that still includes the plucking mechanism that is used for plucking the ear of grain to maize, is used for carrying out the adjustable range mechanism of plucking ear of grain structure interval and is used for carrying out the adjustment mechanism of adjustment to plucking ear of grain mechanism position, plucks ear of grain mechanism and arranges one side of gear box (1), and adjustable range mechanism assembles one side at plucking ear of grain mechanism, and adjustment mechanism corresponds plucking ear of grain mechanism disposes one side of gear box (1).

2. The adjustable corn cob picking plate device as claimed in claim 1, wherein the cob picking mechanism comprises cob picking substrates (2), cob picking side plates (3) and rotating roller assemblies, the cob picking substrates (2) are provided with two groups, the two groups of cob picking substrates (2) are symmetrically arranged on one side of the gear box (1) and fixedly connected with the gear box (1), the cob picking side plates (3) are provided with two groups, the two groups of cob picking side plates (3) are respectively arranged on one sides, away from each other, of the two groups of cob picking substrates (2) and are fixedly connected with the corresponding cob picking substrates (2), the rotating roller assemblies are provided with two groups, and the two groups of rotating roller assemblies are respectively arranged on the inner sides of the bottoms of the two groups of the cob picking substrates (2).

3. The adjustable corn cob picking plate device according to claim 2, characterized in that the rotary roller assembly comprises a rotary roller base (4), an cob picking rotary roller (5) and a rotary roller end head (6), the rotary roller base (4) is arranged at the bottom of the cob picking base (2) and fixedly connected with the cob picking base (2), the cob picking rotary roller (5) is arranged at one end, far away from the gear box (1), of the rotary roller base (4) and is in transmission connection with an cob picking shaft of the gear box (1) through a rotating shaft, the rotary roller end head (6) is arranged at the inner side, far away from one end of the gear box (1), of the cob picking side plate (3) and is fixedly connected with the cob picking side plate, and the rotary roller end head (6) is in rotary connection with one end, far away from the rotary roller base (4), of the cob picking rotary roller (5) through a mounting frame.

4. The adjustable corn cob picking plate device as claimed in claim 3, further comprising two groups of guiding components, wherein the two groups of guiding components are symmetrically arranged at one end of the two groups of cob picking base plates (2) away from the gear box (1), each guiding component comprises a guiding mounting plate (7), a guiding side plate (8) and a guiding base plate (9), the guiding mounting plates (7) are arranged at one end of the cob picking base plates (2) away from the gear box (1) and are fixedly connected with the cob picking base plates (2), the guiding side plates (8) are arranged at one side of the guiding mounting plates (7) and are fixedly connected with the guiding mounting plates (7), the guiding base plates (9) are arranged at the lower part of the guiding mounting plates (7) and are fixedly connected with the guiding mounting plates (7) through bolts, and the guiding base plates (9) adopt a bending type structure, and the guiding mounting plates (7), the guiding side plates (8) and the guiding base plates (9) together form a double-layer shovel type guiding structure.

5. The adjustable corn cob picking plate device as claimed in claim 4, wherein the distance adjusting mechanism comprises fixed cob picking plates (10), adjustable cob picking plates (11) and distance adjusting components, wherein the fixed cob picking plates (10) are arranged on the inner side of the upper ends of one group of the cob picking plates (2) and fixedly connected with the corresponding cob picking plates (2), the adjustable cob picking plates (11) are arranged on the inner side of the upper ends of the other group of the cob picking plates (2) and are slidably connected with the corresponding cob picking plates (2), and the distance adjusting components are arranged on the outer sides of the cob picking side plates (3) and are connected with the adjustable cob picking plates (11) corresponding to the adjustable cob picking plates (11).

6. The adjustable corn cob picking plate device as claimed in claim 5, wherein the distance adjusting assembly comprises a distance adjusting rotating shaft (12), a distance adjusting installation seat (13) and a distance adjusting limiting block (14), the distance adjusting rotating shaft (12) is arranged on the outer side of the cob picking side plate (3) and is rotationally connected with the cob picking side plate (3) through a base, the distance adjusting installation seat (13) is provided with two groups, the two groups of distance adjusting installation seats (13) are symmetrically arranged at two ends of the distance adjusting rotating shaft (12) and are fixedly connected with the distance adjusting rotating shaft (12), one end of the distance adjusting installation seat (13) away from the distance adjusting rotating shaft (12) is rotationally connected with the side parts of the adjustable cob picking plates (11) through the rotating shaft, the distance adjusting limiting block (14) is provided with two groups, the distance adjusting limiting block (14) are symmetrically arranged on the upper parts of two ends of the cob picking base plate (2) and are fixedly connected with the cob picking base plate (2), and the distance adjusting limiting block (14) is located on two sides of the adjustable ear picking plates (11).

7. An adjustable corn cob picking plate device as claimed in claim 6, characterized in that said gear box (1), cob picking mechanism and distance adjusting mechanism are provided with several groups, several groups of said gear box (1), several groups of cob picking mechanisms and several groups of distance adjusting mechanisms are arranged on the corn harvester side by side at intervals.

8. The adjustable corn cob picking plate device of claim 7, characterized in that the adjusting mechanism comprises an adjusting base (15), an adjusting installation rod (16) and an adjusting fixing ring (17), the adjusting base (15) is arranged on the side portion of one group of gear boxes (1) and fixedly connected with the corresponding gear boxes (1), the adjusting installation rod (16) is arranged on one side of the adjusting base (15) and fixedly connected with the adjusting base (15) through a positioning component, the adjusting fixing ring (17) is provided with a plurality of adjusting fixing rings corresponding to a plurality of groups of cob picking mechanisms, the adjusting fixing rings (17) are arranged on the adjusting installation rod (16) at intervals side by side and fixedly connected with the adjusting installation rod (16), and the adjusting fixing rings (17) are respectively arranged on one side of a plurality of groups of cob picking mechanisms and are correspondingly arranged with the distance adjusting rotating shaft (12).

9. The adjustable corn cob picking plate device of claim 8, characterized in that the positioning assembly comprises a positioning bracket (18) and a positioning clamp (19), the positioning bracket (18) is arranged on one side of the adjusting base (15) far away from the gear box (1) and is fixedly connected with the adjusting base (15), the positioning clamp (19) is provided with a plurality of groups, the positioning clamp (19) are arranged on one side of the positioning bracket (18) close to the adjusting installation rod (16) at intervals side by side and fixedly connected with the positioning bracket (18), and the positioning clamp (19) is clamped on the side part of the adjusting installation rod (16) through bolts.

10. The adjustable corn cob picking plate device of claim 9, further comprising a flail knife mechanism, wherein the flail knife mechanism comprises a flail knife base (20) and a cutting flail knife (21), the flail knife base (20) is arranged at the bottom of one group of the cob picking side plates (3) and fixedly connected with the corresponding cob picking side plates (3), a flail knife rotating shaft is arranged in the flail knife base (20), the flail knife rotating shaft is in transmission connection with a flail knife shaft of the gear box (1) through a worm and gear structure, the cutting flail knife (21) is provided with two groups, and the two groups of the cutting flail knives (21) are arranged at one end of the flail knife rotating shaft in a staggered mode and are fixedly connected with the flail knife rotating shaft through a flail knife base plate.