CN214676646U - Single-side transmission coarse cereal harvesting header - Google Patents

Abstract

The utility model relates to a grain harvesting header with unilateral transmission, which comprises a header frame, wherein the header frame is provided with a middle feeding mechanism, a side feeding mechanism, a grain lifting screw feeder, a feeding screw feeder, a swing ring box and a transmission mechanism, and the side feeding mechanism comprises two groups of side grain dividers positioned at the left side and the right side of the middle feeding mechanism; the middle feeding mechanism comprises a plurality of middle dividers which are arranged from left to right in sequence, and the side dividers and the middle dividers are both provided with feeding chains; the swing ring box is connected with a cutting knife arranged below the feeding chain; two groups of grain lifting screw feeders are arranged on the left side and the right side of the side feeding mechanism; the transmission mechanism is arranged on the left side or the right side of the header rack and comprises a transition power shaft, the transition power shaft is in transmission connection with a feeding auger arranged at the rear end of the feeding chain through a first chain transmission structure, the feeding auger is in transmission connection with the feeding chain through a second chain transmission structure, the transition power shaft is in transmission connection with a grain lifting auger through a third chain transmission structure, and the transition power shaft is in transmission connection with the swing ring box through a first belt transmission structure.

Description

Single-side transmission coarse cereal harvesting header

Technical Field

The utility model belongs to the technical field of the grain harvester, especially, relate to a driven coarse cereals results header of unilateral.

Background

Sorghum and millet are used as important economic crops in China, have wide application and can be used for brewing wine, eating, silage and the like. In recent years, the planting area of sorghum and millet is gradually increased, the faced harvesting problem is very severe, the manual harvesting wastes time and labor and is separated from the rhythm of the mechanical operation era, although the agricultural machinery in China develops rapidly in recent years, the machine harvesting mainly uses a grain harvester, the existing grain harvester is mainly designed for harvesting rice and wheat, the following defects exist when the sorghum or millet crops are harvested, 1, the sorghum ears and the millet ears are large, and the seedling pulling teeth of the seedling pulling wheel are easy to carry the sorghum ears, the millet ears rotate and are thrown out of the header, so that serious loss is caused; 2. the harvesting speed of the header of the grain harvester cannot be accelerated, the grain harvester can accumulate in front of the header and cannot normally feed due to too high speed, the grain harvester can only work at low speed, and the harvesting efficiency can be seriously reduced in a rush harvesting season; 3. easy pile before the header leads to cereal can not even transport to the conveyer trough, can not be by the even threshing system who carries to the grain harvester rear end of conveyer trough again, and it is great when the accumulational cereal feeding volume of grain harvester header, not only cause the jam of conveyer trough, produce mechanical failure, a large amount of cereal feeding can also increase threshing system's load and results the loss in addition temporarily.

SUMMERY OF THE UTILITY MODEL

When the grain harvester header that exists for solving prior art results sorghum and millet crop, the reel tooth of reel smugglies the sorghum ear of grain, millet ear of grain rotation secretly very easily and throws away the header to and the easy accumulational problem of header, the utility model provides a driven coarse cereals results header of unilateral.

In order to solve the technical problem, the utility model adopts the following technical scheme that the grain harvesting header with single-side transmission comprises a header frame, wherein the header frame is provided with a middle feeding mechanism, a side feeding mechanism, a grain lifting screw feeder, a feeding screw feeder, a swing ring box, a cutting knife and a transmission mechanism, the side feeding mechanism comprises two groups of side grain dividers, and the two groups of side grain dividers are respectively positioned at the left side and the right side of the middle feeding mechanism; the middle feeding mechanism comprises a plurality of middle dividers, the middle dividers are sequentially distributed from left to right, feeding chains are arranged in the side dividers and the middle dividers, a plurality of feeding shifting plates are arranged on the feeding chains, the feeding chains are driven by feeding chain wheels, a feeding gear box is arranged on the header frame, and the output end of the feeding gear box is in transmission connection with the feeding chain wheels; the output end of the swing ring box is connected with a cutting knife, and the cutting knife is arranged below the feeding chain; the feeding auger is arranged at the rear end of the feeding chain; the grain lifting screw conveyors are provided with two groups, the two groups of grain lifting screw conveyors are respectively arranged on the left side and the right side of the side edge feeding mechanism, a grain lifting long shaft is arranged on the header frame, screw conveyor gear boxes are respectively arranged at two ends of the grain lifting long shaft, and the output ends of the screw conveyor gear boxes are in transmission connection with the grain lifting screw conveyors through universal joints;

the transmission mechanism is arranged on the left side or the right side of the header rack and comprises a transition power shaft, the transition power shaft is in transmission connection with a feeding auger through a first chain transmission structure, the feeding auger is in transmission connection with the input end of a feeding gear box through a second chain transmission structure, the transition power shaft is in transmission connection with a grain lifting long shaft through a third chain transmission structure, and the transition power shaft is in transmission connection with the input end of a swing ring box through a first belt transmission structure.

Preferably, the transmission mechanism further comprises a main transmission shaft, the main transmission shaft is arranged on the harvester, and the main transmission shaft is in transmission connection with the transition power shaft through a second belt transmission structure. The power of the transmission mechanism is transmitted to the transition power shaft through the main transmission shaft and the second belt transmission structure, the power is transited to each actuating mechanism through the transition power shaft, the transmission mechanism is simple in structure, ingenious in design, reliable in transmission and low in cost, and the coarse cereal harvesting header is convenient to be integrally matched to each harvester.

Preferably, the first chain transmission structure is provided with a first tensioning sprocket matched with the chain thereof, the second chain transmission structure is provided with a second tensioning sprocket matched with the chain thereof, the third chain transmission structure is provided with a third tensioning sprocket matched with the chain thereof, the first belt transmission structure is provided with a first tensioning belt wheel matched with the driving belt thereof, and the second belt transmission structure is provided with a second tensioning belt wheel matched with the driving belt thereof.

Preferably, the bottom ends of the middle divider and the side dividers are both provided with bottom plates, and the front ends of the bottom plates are tilted to be in contact with the front ends of the corresponding dividers. The arrangement of the bottom plate effectively protects the middle divider and the side dividers, and the front end of the bottom plate is tilted to effectively prevent the front end of the bottom plate from being inserted into the ground.

Preferably, a tensioning device is arranged in the feeding chain, the tensioning device comprises a feeding tensioning chain wheel, a connecting block, a pull rod, a pressure spring, a first limiting part and a second limiting part, the feeding tensioning chain wheel is meshed with the feeding chain, the feeding tensioning chain wheel is rotatably connected with the connecting block, the pull rod is fixedly connected with the connecting block, the first limiting part is fixedly arranged on the pull rod, the second limiting part is fixedly arranged on the bottom plate, the pull rod penetrates through the second limiting part in a sliding mode, and the pressure spring is located between the first limiting part and the second limiting part. The feeding tension chain wheel is reliably engaged with the feeding chain all the time under the action of the pressure spring, so that the reliability and stability of the feeding chain are improved, and the tension device is simple and reliable in structure, convenient to manufacture and install and low in cost.

Further, this coarse cereal results header is still including sheltering from the otter board, shelter from the otter board setting in the rear end of feeding screw feeder, screw hole and arc wall have all been seted up at both ends about sheltering from the otter board, shelter from the otter board through first screw and screw hole cooperation to and second screw and arc wall cooperation are fixed to be set up in the header frame, loosen the second screw, shelter from the otter board and be close to or keep away from the rotation of feeding screw feeder around first screw. The rear shielding screen plate prevents the over-high crops from falling out of the coarse cereal harvesting header in the harvesting process, so that the loss is reduced; because the sorghum, millet variety that every area was planted have difference, some areas straw is higher, can lead to the ear of grain to fall out this coarse cereals results header, and this coarse cereals results header during operation feeding screw feeder can raise sorghum, millet in addition, shelters from the otter board and gets into this coarse cereals results header in order to guarantee that the sorghum of feeding, millet are whole, avoids causing unnecessary loss.

Furthermore, the shielding mesh plate comprises three sub mesh plates, the three sub mesh plates are sequentially arranged from left to right, and the adjacent sub mesh plates are fixedly connected through screw structures. The shielding screen plate is convenient to assemble and disassemble and is convenient for replacing the broken sub-screen plate and light in weight.

Furthermore, the front end of the middle divider is a cone with a forward tip, the front end of the side divider is a half cone with a forward tip, and the cambered surface of the side divider is arranged close to the feeding mechanism; the included angle between the front ends of the adjacent middle dividers is 20 degrees, and the included angle between the front end of the side divider and the front end of the adjacent middle divider is 20 degrees. According to the ridge spacing, the shape and the angle of the grain divider are reasonably designed, the adaptability of the ridge spacing is improved, the grain divider can normally work corresponding to different ridge spacing, and meanwhile, the effect of dividing the grain is better achieved.

Furthermore, the header frame is formed by welding sectional materials. The machine cutting table frame has the characteristics of simple processing and manufacturing, convenient assembly and disassembly, high strength, less material consumption, light weight, low cost and the like.

Has the advantages that:

1. the utility model discloses a grain crops harvesting header of unilateral transmission, the feeding chain is lasting evenly to be plucked the crop to the feeding screw feeder, effectively avoids the rotation of sorghum ear, millet ear and throws away this grain crops harvesting header, effectively avoids the crop to pile up at this grain crops harvesting header simultaneously, this grain crops harvesting header can high-speed operation, improves harvesting efficiency in order to adapt to the season of robbing for harvest, and effectively avoids the crop to pile up the short-term feed volume that causes at this grain crops harvesting header and is great, avoids causing the jam of conveyer trough, and avoids the load of follow-up threshing system big and results the loss;

2. the utility model discloses a grain crops harvesting header of unilateral transmission, drive mechanism sets up the unilateral in the header frame, the power of drive mechanism is transmitted to the transition power shaft through the second belt drive structure by the main drive shaft, the power passes through the transition power shaft and passes through to each actuating mechanism, the simple structure of drive mechanism is reliable, the design is ingenious, the cost is lower, the drive mechanism that the unilateral sets up is simpler than the transmission principle of the existing bilateral drive mechanism, and it is convenient for this grain crops harvesting header to adapt to each harvester as an entity; the maintenance work of the coarse cereal harvesting header after harvesting is convenient to disassemble;

3. the utility model discloses a unilateral driven coarse cereals results header, is provided with overspeed device tensioner in the feeding chain, and under the effect of pressure spring, feeding tensioning sprocket reliably meshes with the feeding chain all the time, improves the reliability and the stability of feeding chain work, and overspeed device tensioner's simple structure is reliable, is convenient for make the installation, and the cost is lower;

4. the utility model discloses a grain crop harvesting header with unilateral transmission, the rear shading screen plate prevents the over-high crops from falling out of the grain crop harvesting header in the harvesting process, and reduces the loss; the varieties of the sorghum and the millet planted in each area are different, the straws in some areas are higher, ears can fall out of the coarse cereal harvesting header, the sorghum and the millet can be raised by a feeding auger when the coarse cereal harvesting header works, and the screen plate is shielded to ensure that the fed sorghum and the millet all enter the coarse cereal harvesting header, so that unnecessary loss is avoided;

5. the utility model discloses a driven coarse cereals results header of unilateral, according to the ridge distance, the shape and the angle of rational design divider improve the adaptability of ridge distance, and the homoenergetic of the different ridge distance divider homoenergetic of reply normally works, the better effect that reaches the divider simultaneously.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of a single-side transmission coarse cereal harvesting header of the utility model in a three-dimensional structure;

fig. 2 is a schematic view of the internal structure of the single-side transmission coarse cereal harvesting header of the utility model;

fig. 3 is a schematic three-dimensional structure diagram of a header frame of the single-side transmission coarse cereal harvesting header of the utility model;

FIG. 4 is a schematic view of the internal structure of the intermediate feeding mechanism of the single-side driven coarse cereal harvesting header of the present invention;

fig. 5 is a schematic view of the internal structure of the side feeding mechanism of the single-side transmission coarse cereal harvesting header of the present invention;

fig. 6 is a schematic view of the internal structure of the tensioning device of the single-side transmission coarse cereal harvesting header of the present invention;

fig. 7 is a schematic three-dimensional structure diagram of a grain lifting screw of the single-side transmission coarse cereal harvesting header of the utility model;

fig. 8 is a schematic diagram of the transmission mechanism of the coarse cereal harvesting header with single-side transmission of the present invention;

FIG. 9 is a schematic view of a portion of the direction A of FIG. 8;

FIG. 10 is a schematic partial side view of a shielding mesh plate of the single-side driven cereal harvesting header of the present invention;

in the figure: 1. header frame, 2, middle feeding mechanism, 21, middle divider, 22, feeding chain, 23, feeding dial plate, 24, feeding chain wheel, 25, feeding gear box, 26, bottom plate, 27, tensioning device, 271, feeding tensioning chain wheel, 272, connecting block, 273, pull rod, 274, pressure spring, 275, first limiting piece, 276, second limiting piece, 277, hoop, 3, side feeding mechanism, 31, side divider, 4, grain lifting auger, 41, grain lifting long shaft, 42, auger gear box, 43, universal joint, 5, feeding auger, 6, swing ring box, 7, cutter, 8, transmission mechanism, 81, transition power shaft, 82, first chain transmission mechanism, 821, first tensioning chain wheel, 83, second chain transmission mechanism, 831, second tensioning chain wheel, 84, third chain transmission mechanism, 841, third tensioning chain wheel, 85, first belt transmission mechanism, 851, chain transmission mechanism, and tension chain transmission mechanism, The first tensioning belt wheel 86, the main transmission shaft 87, the second belt transmission structure 871, the second tensioning belt wheel 9, the shielding screen plate 91, a threaded hole 92, an arc-shaped groove 93, a sub-screen plate 94 and a screw structure.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Example 1

As shown in fig. 1 to 9, a single-side transmission grain harvesting header comprises a header frame 1, as shown in fig. 3, the header frame 1 of the present embodiment is formed by welding sectional materials, as shown in fig. 1 and 2, the header frame 1 is provided with an intermediate feeding mechanism 2, a side feeding mechanism 3, a grain lifting screw feeder 4, a feeding screw feeder 5, a swing ring box 6, a cutter 7 and a transmission mechanism 8, as shown in fig. 1, 4 and 5, the side feeding mechanism 3 comprises two groups of side grain dividers 31, and the two groups of side grain dividers 31 are respectively located at the left side and the right side of the intermediate feeding mechanism 2; the middle feeding mechanism 2 comprises a plurality of middle dividers 21, the middle dividers 21 are sequentially distributed from left to right, feeding chains 22 are arranged in the side dividers 31 and the middle dividers 21, a plurality of feeding shifting plates 23 are arranged on the feeding chains 22, the feeding chains 22 are driven by feeding chain wheels 24, as shown in fig. 8 and 9, a feeding gear box 25 is arranged on the header frame 1, and the output end of the feeding gear box 25 is in transmission connection with the feeding chain wheels 24; as shown in fig. 1, the output end of the swing ring box 6 is connected with the cutter 7, the cutter 7 is arranged below the feeding chain 22, the cutter 7 performs reciprocating cutting motion under the action of the swing ring box 6, and the cutting efficiency is high; as shown in fig. 1, the feeding auger 5 is disposed at the rear end of the feeding chain 22; as shown in fig. 1, 2 and 7, the two sets of grain-lifting screw feeders 4 are provided, the two sets of grain-lifting screw feeders 4 are respectively arranged at the left and right sides of the side feeding mechanism 3, the header frame 1 is provided with a grain-lifting long shaft 41, two ends of the grain-lifting long shaft 41 are respectively provided with a screw feeder gear box 42, the output end of the screw feeder gear box 42 is in transmission connection with the grain-lifting screw feeder 4 through a universal joint 43, the universal joint 43 can effectively transmit radial force and axial force, and the transmission effect is better;

as shown in fig. 2, 8 and 9, the transmission mechanism 8 is disposed on the left side of the header frame 1, the transmission mechanism 8 includes a transition power shaft 81 and a main transmission shaft 86, the main transmission shaft 86 is disposed on the harvester, the transition power shaft 81 is disposed in a transmission groove, the transmission groove is located at the rear end of the feeding auger 5, the main transmission shaft 86 is in transmission connection with the transition power shaft 81 through a second belt transmission structure 87, the transition power shaft 81 is in transmission connection with the feeding auger 5 through a first chain transmission structure 82, the feeding auger 5 is in transmission connection with the input end of the feeding gear box 25 through a second chain transmission structure 83, the transition power shaft 81 is in transmission connection with the long standing grain shaft 41 through a third chain transmission structure 84, and the transition power shaft 81 is in transmission connection with the input end of the swing ring box 6 through a first belt transmission structure 85.

As shown in fig. 2 and 8, in order to ensure the structure of the transmission mechanism 8 to be reliable and smooth in transmission operation, the first chain transmission structure 82 is provided with a first tensioning sprocket 821 engaged with a chain thereof, the second chain transmission structure 83 is provided with a second tensioning sprocket 831 engaged with a chain thereof, the third chain transmission structure 84 is provided with a third tensioning sprocket 841 engaged with a chain thereof, the first belt transmission structure 85 is provided with a first tensioning pulley 851 engaged with a transmission belt thereof, and the second belt transmission structure 87 is provided with a second tensioning pulley 871 engaged with a transmission belt thereof.

As shown in fig. 1, 2, 4 and 5, in order to improve the feeding function of the middle feeding mechanism 2 and the side feeding mechanism 3, the front end of the middle divider 21 is a forward-pointed cone, the front end of the side divider 31 is a forward-pointed half cone, and the arc surface of the side divider 31 is arranged close to the feeding mechanism; the included angle between the front ends of the adjacent middle grain dividers 21 is 20 degrees, and the included angle between the front end of the side grain divider 31 and the front end of the adjacent middle grain divider 21 is 20 degrees; the bottom ends of the middle divider 21 and the side dividers 31 are both provided with a bottom plate 26, and the front ends of the bottom plates 26 are tilted to be in contact with the front ends of the corresponding dividers; as shown in fig. 4 to 6, a tensioning device 27 is disposed in the feeding chain 22, the tensioning device 27 includes a feeding tensioning sprocket 271, a connecting block 272, a pull rod 273, a pressure spring 274, a first limiting member 275, and a second limiting member 276, the feeding tensioning sprocket 271 is engaged with the feeding chain 22, the feeding tensioning sprocket 271 is rotatably connected to the connecting block 272, the pull rod 273 is fixedly connected to the connecting block 272 through a hoop 277 in this embodiment, the first limiting member 275 is fixedly disposed on the pull rod 273, the second limiting member 276 is fixedly disposed on the bottom plate 26, the pull rod 273 slides through the second limiting member 276, and the pressure spring 274 is located between the first limiting member 275 and the second limiting member 276.

As shown in fig. 1 and 10, in order to enable the coarse cereal harvesting header to harvest various sorghum and millet varieties and effectively prevent sorghum ears and millet ears from falling out of the coarse cereal harvesting header, the coarse cereal harvesting header further comprises a shielding mesh plate 9, the shielding mesh plate 9 is arranged at the rear end of the feeding auger 5, both the left end and the right end of the shielding mesh plate 9 are provided with screw holes and arc-shaped grooves 92, the shielding mesh plate 9 is matched with the screw holes 91 through first screws, and second screws are matched with the arc-shaped grooves 92 and fixedly arranged on the header frame 1, the second screws are loosened, and the shielding mesh plate 9 rotates around the first screws to be close to or far away from the feeding auger 5; in order to facilitate the assembly and disassembly of the shielding mesh plate 9, in this embodiment, the shielding mesh plate 9 includes three sub mesh plates 93, the three sub mesh plates 93 are sequentially disposed from left to right, and adjacent sub mesh plates 93 are fixedly connected by a screw structure 94.

The working principle is as follows:

the coarse cereal harvesting header is mounted on a harvester, the harvester drives a main transmission shaft 86 to rotate, the main transmission shaft 86 drives a transition power shaft 81 to rotate through a second belt transmission structure 87, the transition power shaft 81 drives a feeding auger 5 to rotate through a first chain transmission structure 82, the feeding auger 5 sequentially drives a feeding gear box 25, a feeding chain wheel 24 and a feeding chain 22 to rotate through a second chain transmission structure 83, the transition power shaft 81 sequentially drives a grain lifting long shaft 41, an auger gear box 42, a universal joint 43 and a grain lifting auger 4 to rotate through a third chain transmission structure 84, and the transition power shaft sequentially drives an output end of a swing ring box 6 and a cutting knife 7 to reciprocate through a first belt transmission structure 85; meanwhile, the harvester moves forwards, the grain lifting screw feeder 4, the side grain divider 31, the middle grain divider 21 and the feeding chain 22 are matched to pull the crops into the coarse cereal harvesting header, the cutting knife 7 cuts the crops from the root, the crop ears are poured into the coarse cereal harvesting header in a proper manner, the feeding chain 22 continues to feed the crops backwards to the feeding screw feeder 5, and the crops enter the conveying groove under the action of the feeding screw feeder 5.

Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

Claims (9)

1. The utility model provides a driven coarse cereals results header of unilateral which characterized in that: the cutting table comprises a cutting table rack (1), wherein a middle feeding mechanism (2), a side edge feeding mechanism (3), a grain lifting screw feeder (4), a feeding screw feeder (5), a swing ring box (6), a cutting knife (7) and a transmission mechanism (8) are arranged on the cutting table rack (1), the side edge feeding mechanism (3) comprises two groups of side edge grain dividers (31), and the two groups of side edge grain dividers (31) are respectively positioned at the left side and the right side of the middle feeding mechanism (2); the middle feeding mechanism (2) comprises a plurality of middle dividers (21), the middle dividers (21) are sequentially distributed from left to right, feeding chains (22) are arranged in the side dividers (31) and the middle dividers (21), a plurality of feeding shifting plates (23) are arranged on the feeding chains (22), the feeding chains (22) are driven by feeding chain wheels (24), a feeding gear box (25) is arranged on the header frame (1), and the output end of the feeding gear box (25) is in transmission connection with the feeding chain wheels (24); the output end of the swing ring box (6) is connected with a cutting knife (7), and the cutting knife (7) is arranged below the feeding chain (22); the feeding screw conveyor (5) is arranged at the rear end of the feeding chain (22); the grain lifting screw feeders (4) are provided with two groups, the two groups of grain lifting screw feeders (4) are respectively arranged at the left side and the right side of the side edge feeding mechanism (3), a grain lifting long shaft (41) is arranged on the header frame (1), screw feeder gear boxes (42) are respectively arranged at the two ends of the grain lifting long shaft (41), and the output ends of the screw feeder gear boxes (42) are in transmission connection with the grain lifting screw feeders (4) through universal joints (43);

drive mechanism (8) set up the left side or the right side at header frame (1), drive mechanism (8) are including transition power shaft (81), transition power shaft (81) are connected through first chain drive structure (82) and feeding screw feeder (5) transmission, feeding screw feeder (5) are connected with the input transmission of feeding gear box (25) through second chain drive structure (83), transition power shaft (81) are connected with holding up standing grain major axis (41) transmission through third chain drive structure (84), transition power shaft (81) are connected with the input transmission of swing ring case (6) through first area transmission structure (85).

2. The single-sided drive cereal harvesting header of claim 1, wherein: the transmission mechanism (8) further comprises a main transmission shaft (86), the main transmission shaft (86) is arranged on the harvester, and the main transmission shaft (86) is in transmission connection with the transition power shaft (81) through a second belt transmission structure (87).

3. The single-sided drive cereal harvesting header of claim 2, wherein: first chain drive structure (82) department is provided with rather than chain complex first tensioning sprocket (821), second chain drive structure (83) department is provided with rather than chain complex second tensioning sprocket (831), third chain drive structure (84) department is provided with rather than chain complex third tensioning sprocket (841), first belt drive structure (85) department is provided with rather than drive belt complex first tensioning pulley (851), second belt drive structure (87) department is provided with rather than drive belt complex second tensioning pulley (871).

4. The single-sided drive cereal harvesting header of claim 1, wherein: the bottom ends of the middle nearside dividers (21) and the side nearside dividers (31) are respectively provided with a bottom plate (26), and the front ends of the bottom plates (26) are tilted to be in contact with the front ends of the corresponding nearside dividers.

5. The single-sided drive cereal harvesting header of claim 4, wherein: be provided with overspeed device tensioner (27) in feeding chain (22), overspeed device tensioner (27) are including feeding tensioning sprocket (271), connecting block (272), pull rod (273), pressure spring (274), first locating part (275) and second locating part (276), feeding tensioning sprocket (271) and feeding chain (22) meshing, feeding tensioning sprocket (271) rotates with connecting block (272) and is connected, pull rod (273) and connecting block (272) fixed connection, first locating part (275) fixed set up on pull rod (273), second locating part (276) fixed set up on bottom plate (26), pull rod (273) slides and passes second locating part (276), pressure spring (274) are located between first locating part (275) and second locating part (276).

6. The single-sided drive cereal harvesting header of claim 1, wherein: this cereal results header is still including sheltering from otter board (9), shelter from otter board (9) and set up the rear end in feeding screw feeder (5), screw hole and arc wall (92) have all been seted up at both ends about sheltering from otter board (9), shelter from otter board (9) through first screw and screw hole (91) cooperation to and second screw and arc wall (92) cooperation are fixed to be set up on header frame (1), loosen the second screw, shelter from otter board (9) and be close to or keep away from feeding screw feeder (5) rotation around first screw.

7. The single-sided drive cereal harvesting header of claim 6, wherein: the shielding mesh plate (9) comprises three sub mesh plates (93), the three sub mesh plates (93) are sequentially arranged from left to right, and the adjacent sub mesh plates (93) are fixedly connected through screw structures (94).

8. The single-sided drive cereal harvesting header of claim 1, wherein: the front end of the middle divider (21) is a cone with a forward tip, the front end of the side divider (31) is a half cone with a forward tip, and the arc surface of the side divider (31) is arranged close to the feeding mechanism; the included angle between the front ends of the adjacent middle grain dividers (21) is 20 degrees, and the included angle between the front end of the side grain divider (31) and the front end of the adjacent middle grain divider (21) is 20 degrees.

9. The single-sided drive cereal harvesting header of claim 1, wherein: the header frame (1) is formed by welding sectional materials.

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