CN218680194U

CN218680194U - Threshing cylinder and grain combine

Info

Publication number: CN218680194U
Application number: CN202221384306.8U
Authority: CN
Inventors: 谭克锋; 周明星; 王希军; 董伟; 乔昱; 张立功
Original assignee: Guangdong Haoyun Technology Co Ltd
Current assignee: Guangdong Haoyun Technology Co Ltd
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2023-03-24
Anticipated expiration: 2032-06-02

Abstract

The utility model discloses a threshing cylinder and cereal combine, a threshing cylinder includes cylinder main part and multiunit rasp bar group, and multiunit rasp bar group is along the adjacent arrangement of axial on the outer peripheral face of cylinder main part, and every rasp bar group includes a plurality of rasp bar pieces that distribute along the circumference of cylinder main part, forms the accommodation space between the two adjacent rasp bar pieces in every rasp bar group, and the rasp bar piece in every rasp bar group and the rasp bar piece in the adjacent rasp bar group are in the staggered distribution in circumference. The grain threshing operation is carried out by adopting the rasp bar block group, so that the grain can be grabbed and fed by the roller, and the breakage of grains such as corncobs and broken grains during feeding can be reduced. Through the staggered arrangement structure of the grain rod blocks, grains can be axially moved under the combined action of the grain rod blocks, so that the grains can be kneaded by the grain rods for multiple times, and the generated axial movement is also beneficial to mutual impact and extrusion between the grains, thereby being more beneficial to improving the threshing efficiency.

Description

Threshing cylinder and grain combine

Technical Field

The utility model relates to the field of agricultural machinery, especially, relate to a threshing cylinder and cereal combine.

Background

The current grain combine harvester tangential flow threshing cylinder has a squirrel cage shape or a cylinder shape, is transversely arranged on the harvester, and the threshing element has a long strip bar, a bar tooth or a spike tooth. The existing grain tangential flow threshing cylinder increases the size of the grain pole teeth in order to increase the threshing kneading working surface, so that grain crushing with different degrees can occur when grains are harvested, and particularly, the grain crushing is more serious when the corn with overhigh water content is rapidly harvested, and the harvesting quality is influenced.

Disclosure of Invention

In order to ensure the grain harvesting quality and solve the problem of high grain breakage rate when grain threshing, the utility model discloses a threshing cylinder and a grain combine harvester.

The utility model discloses realize by following technical scheme:

a threshing cylinder comprises a cylinder body and a plurality of groups of rasp bar blocks, wherein the groups of rasp bar blocks are adjacently arranged on the outer peripheral surface of the cylinder body along the axial direction of the cylinder body, each group of rasp bar blocks comprises a plurality of rasp bar blocks which are distributed along the circumferential direction of the cylinder body at intervals, and each rasp bar block in each group of rasp bar blocks and the rasp bar block in the axially adjacent rasp bar block group are circumferentially staggered.

Further, in two axially adjacent rasp bar block groups, the tail end of each rasp bar block is aligned with the head end of the axially adjacent rasp bar block.

Furthermore, the threaded rod block comprises a threaded rod block bottom plate and a threaded block, the threaded rod block bottom plate is arranged on the outer peripheral surface of the roller body, and the threaded block is detachably connected with the threaded rod block bottom plate.

Furthermore, an included angle alpha is formed between a plane where the connecting part of the rasp bar block bottom plate and the roller body and the axis of the roller body are located together and the rasp bar block bottom plate, and the included angle alpha is 0 degrees < alpha.

Furthermore, the thread block lines on the roller main body are arranged symmetrically relative to the middle part of the axis of the whole multiple groups of line rod block groups.

Further, in the radial section of the drum main body, an included angle β is formed between straight extension lines of two adjacent screw blocks in the circumferential direction, and 0 ° < β.

Further, the thread block is fixed on the bottom plate of the threaded rod block through a round head square neck bolt.

Furthermore, the cylinder body comprises a threshing cylinder shaft, a cylinder hub, cylinder breadth discs and a cylinder body, the threshing cylinder shaft is arranged in the cylinder body, the threshing cylinder shaft is provided with a plurality of cylinder breadth discs which are distributed at intervals along the axial direction, the cylinder breadth discs are connected with the threshing cylinder shaft through the cylinder hub, the cylinder breadth discs are fixedly connected with the cylinder body, and the threaded rod block group is arranged on the cylinder body.

Furthermore, a plurality of drum width discs are distributed on the threshing drum shaft in parallel, coaxial and interval.

The utility model discloses a grain combine harvester, which comprises any threshing cylinder.

Compared with the prior art, the utility model discloses there is following advantage:

1. the utility model discloses in, carry out the grain threshing operation through adopting the rasp bar group, be favorable to the cylinder to the snatching and the feeding of cereal material to when effectual reduction is fed like cereal fracture such as corncob and seed grain breakage, can guarantee threshing efficiency, can guarantee the quality of threshing of cereal again.

2. The utility model discloses in, through line pole piece staggered arrangement structure in week, can make cereals such as corncob produce axial displacement under the combined action of line pole piece to make cereals such as corncob can be many times rubbed by the line pole, the axial displacement that produces simultaneously also is favorable to impacting each other and extrudeing between cereals such as corncob, thereby more is favorable to promoting threshing efficiency.

Drawings

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

Fig. 1 is a schematic structural view of a threshing cylinder disclosed in the embodiment.

Fig. 2 is a front view of a threshing cylinder of the kind in fig. 1.

Fig. 3 isbase:Sub>A cross-sectional viewbase:Sub>A-base:Sub>A of one of the threshing cylinders in fig. 2.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): the embodiment discloses a grain combine harvester, which comprises a threshing cylinder as shown in fig. 1 to 3, preferably, the threshing cylinder is mounted on the grain combine harvester in a tangential flow structure, the threshing cylinder comprises a cylinder main body 1 and a plurality of groups of rasp bar blocks 2, the groups of rasp bar blocks 2 are adjacently arranged on the outer circumferential surface of the cylinder main body 1 along the axial direction of the cylinder main body 1, each group of rasp bar blocks 2 comprises a plurality of rasp bar blocks 21 which are distributed along the circumferential direction of the cylinder main body 1 at intervals, the plurality of rasp bar blocks 21 of each group of rasp bar blocks 2 are all located on the same radial surface which is perpendicular to the axial direction of the cylinder main body 1, an accommodating space can be formed between two adjacent rasp bar blocks 21 in the circumferential direction in each group of rasp bar blocks 2, so that grains such as corncobs can more easily enter the cylinder main body 1, and the problems of unclean threshing and increased breakage rate of corncobs caused by feeding when the rasp bars are effectively reduced. Each corrugated rod block 21 in each corrugated rod block group 2 is circumferentially staggered with the corrugated rod blocks 21 in the axially adjacent corrugated rod block group 2. In this embodiment, through adopting rasp bar piece group 2 to carry out grain threshing operation, be favorable to the cylinder to snatching and the feeding of cereal material to when effectual reduction is fed like cereal fracture such as corncob and seed grain breakage, can guarantee threshing efficiency, can guarantee grain threshing quality again. Through line pole piece 21 at ascending staggered arrangement structure in circumference, can make cereals such as corncob produce axial displacement under line pole piece 21's combined action to make cereals such as corncob can be many times rubbed by the line pole, the axial displacement that produces simultaneously also is favorable to impacting each other and the extrusion between cereals such as corncob, thereby more is favorable to promoting threshing efficiency.

Further, in order to improve the threshing efficiency, the contact area between the corrugated rod blocks 21 and grains is increased, the arrangement density of the corrugated rod blocks 21 on the roller body 1 is increased, and in the two axially adjacent corrugated rod block groups 2, the tail end of each corrugated rod block 21 is aligned with the head end of the axially adjacent corrugated rod block 21.

Further, the rasp bar block 21 comprises a rasp bar block base plate 211 and a screw block 212, the rasp bar block base plate 211 is disposed on the outer circumferential surface of the drum body 1, specifically, the rasp bar block base plate 211 can be welded or detachably connected to the outer circumferential surface of the drum body 1, and the screw block 212 is detachably connected to the rasp bar block base plate 211. The detachable connection structure can facilitate users to replace the thread blocks 212 with different structural forms according to different requirements, and can adjust other spiral directions and intervals according to requirements. Threaded connection, joint, grafting isotructure can be adopted between rasp pole piece bottom plate 211 and the screw thread piece 212 to realize dismantling the connection, specifically, in this embodiment, screw thread piece 212 passes through button head square neck bolt 3 to be fixed on rasp pole piece bottom plate 211. In addition, in order to improve the effect of friction threshing, the rasp bar block bottom plate 211 is concave, and a concave cavity is arranged inside.

Further, an included angle α is formed between a plane where the connecting portion of the rasp bar block bottom plate 211 and the cylinder body 1 and the axis of the cylinder body 1 are located together and the rasp bar block bottom plate 211, and is 0 ° < α. Can effectively realize pushing the corn ears and other grains on the roller body 1 to the thread block 212, so that the corn and other grains can be threshed by friction between the thread block 212 and the concave plate of the threaded rod block bottom plate 211, and the threshing efficiency is improved. Wherein, in one embodiment, 0 ° < α <90 °.

Further, the thread turning directions of the thread blocks 212 on the roller body 1 are symmetrically arranged relative to the middle of the whole axis of the multiple thread rod block groups 2. The spiral direction of the thread block 212 can be a left spiral direction or a right spiral direction, specifically, the middle of the axis of the whole of the multiple groups of the threaded rod block groups 2 is used as a boundary line, the left spiral thread block 212 is arranged on the right side of the roller body 1, and the right spiral thread block 212 is arranged on the left side of the roller body 1, so that the corn can be pushed to the middle of the whole of the multiple groups of the threaded rod block groups 2, and the spiral position of the thread block 212 can be adjusted according to the requirement of the flowing direction of the grain materials.

Further, in the radial cross section of the drum body 1, an angle β is formed between straight extension lines of two adjacent screw blocks 212 in the circumferential direction, 0 ° < β. The two adjacent thread blocks 212 arranged in the radial section of the roller body 1 at an included angle are structurally arranged, so that the threshing effect can be improved. Wherein, in one embodiment, 0 ° < β <90 °.

Further, the cylinder body 1 comprises a threshing cylinder shaft 11, a cylinder hub 12, a cylinder breadth disc 13 and a circular arc-shaped cylinder body 14, the threshing cylinder shaft 11 is arranged in the cylinder body 14, the cylinder body 14 is arranged around the threshing cylinder shaft 11 to form a closed cylinder structure, a plurality of cylinder breadth discs 13 are arranged on the threshing cylinder shaft 11 at intervals along the axial direction, the cylinder breadth discs 13 are connected with the threshing cylinder shaft 11 through the cylinder hub 12, the cylinder breadth discs 13 are fixedly connected with the cylinder body 14, and the rasp block group 2 is arranged on the cylinder body 14. In particular, a plurality of drum spokes 13 are distributed in parallel, coaxially and at intervals on the threshing drum shaft 11. This structure can make the cylinder main part 1 of this embodiment have the characteristics of closed cylinder, effectively blocks cereal such as maize and enters into the barrel to guarantee that the maize can thresh the operation high-efficiently under the effect of threshing element.

In the operation of the embodiment, grains are taken as corns for example, the characteristic that the contact area between the threaded rod blocks 21 and the corns is small and the guiding effect of the threaded rod blocks 21 and the threaded blocks 212 are applied, the unstable motion state of the corn ears in the axial direction of the roller body 1 is realized by combining the two adjacent rows of threaded rod block groups 2 which are distributed in a staggered mode, under the effect of the circular motion of the roller body 1, the axial movement of the corn ears is promoted, and the corn ears fall into the accommodating space between the two circumferentially adjacent threaded rod blocks 21, so that more friction and extrusion threshing between the corn ears are realized. The corn ears are threshed by the grain pole block 21 with tangential force, so that the threshing is easy to carry out and the damage to grains is small. The working principle of the tangential flow roller threaded rod block 21 is mainly to grasp, guide, impact and rub the corncobs by the threaded block 212, and to thresh the corncobs by the rubbing action among the corncobs and between the corncobs and the roller body 1 and the concave threaded rod block bottom plate 211. Because the threaded rod block 21 is adopted, the corncob is easier to be grabbed when entering the roller main body 1, because the threaded block 212 is narrow, the contact surface between the corncob and the threaded rod block 21 is small, the corncob moves towards the left and right directions of the threaded block 212 due to instability of the corncob under the guiding action of the circular motion of the threaded block 212 and threshing teeth on the threaded block 212, so that the corncob slides to the threaded rod block 21 of an adjacent group, the corncob is continuously threshed by the next group of staggered threaded rod blocks 21, the process is continuously carried out until the corncob is discharged out of the roller main body 1, the process is favorable for protecting the integrity of the corncob, the complete corncob is more favorable for reliable threshing of the next threaded block 212, and the problems of cutting off the corncob, breaking of the corncob and complete threshing caused by difficult grabbing and rolling of the corncob due to installation of the long threaded rod block 21 at present are not easy to occur.

It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, which are only used to distinguish one type of information from another. For example, a "first" message may also be referred to as a "second" message, and similarly, a "second" message may also be referred to as a "first" message, without departing from the scope of the present invention. Furthermore, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

The foregoing is directed to the preferred embodiment of the present invention, and it is understood that various changes and modifications may be made by one skilled in the art without departing from the spirit of the invention, and it is intended that such changes and modifications be considered as within the scope of the invention.

Claims

1. The utility model provides a threshing cylinder, its characterized in that, includes cylinder main part (1) and multiunit rasp bar block group (2), multiunit rasp bar block group (2) are followed the axial of cylinder main part (1) is adjacent arranges on the outer peripheral face of cylinder main part (1), and every rasp bar block group (2) include along a plurality of rasp bar blocks (21) of the circumference interval distribution of cylinder main part (1), and a plurality of rasp bar blocks (21) of every rasp bar block group (2) all are located the same radial plane mutually perpendicular with the axial of cylinder main part (1), form the accommodation space between two circumferential adjacent rasp bar blocks (21) in every rasp bar block group (2), and every rasp bar block (21) in every rasp bar block group (2) and rasp bar block (21) in the axially adjacent rasp bar block group (2) are in the staggered distribution in circumference.

2. Threshing cylinder according to claim 1, characterised in that in two axially adjacent groups (2) of rasp bars, the end of each rasp bar block (21) is arranged in line with the head of the axially adjacent rasp bar block (21).

3. The threshing cylinder according to claim 1, characterized in that the rasp bar block (21) comprises a rasp bar block base plate (211) and a threaded block (212), the rasp bar block base plate (211) being arranged on the outer circumferential surface of the cylinder body (1), the threaded block (212) being detachably connected to the rasp bar block base plate (211).

4. The threshing cylinder according to claim 3, characterised in that the plane in which the connecting part of the rasp bar block floor (211) to the cylinder body (1) and the axis of the cylinder body (1) together form an angle α,0 ° < α, with the rasp bar block floor (211).

5. The threshing cylinder according to claim 3, characterized in that the thread direction of the thread block (212) on the cylinder body (1) is arranged symmetrically with respect to the middle of the axis of the whole of the multiple groups of thread bar block sets (2).

6. Threshing cylinder according to claim 3, characterized in that in the radial cross-section of the cylinder body (1) the straight extensions of two circumferentially adjacent screw blocks (212) form an angle β,0 ° < β.

7. Threshing cylinder according to claim 3, characterised in that the threaded block (212) is fixed to the bottom plate (211) of the threaded block by means of round square-neck bolts (3).

8. The threshing cylinder according to claim 1, characterized in that the cylinder body (1) comprises a threshing cylinder shaft (11), a cylinder hub (12), cylinder spokes (13) and a cylinder body (14), the threshing cylinder shaft (11) is arranged in the cylinder body (14), the threshing cylinder shaft (11) is provided with a plurality of cylinder spokes (13) which are distributed at intervals along the axial direction, the cylinder spokes (13) are connected with the threshing cylinder shaft (11) through the cylinder hub (12), the cylinder spokes (13) are fixedly connected with the cylinder body (14), and the rasp bar block group (2) is arranged on the cylinder body (14).

9. Threshing cylinder according to claim 8, characterized in that a number of the cylinder discs (13) are distributed on the threshing cylinder shaft (11) in parallel coaxial spacing.

10. A grain combine comprising a threshing cylinder according to any of claims 1-9.