CN114402817A - General type threshing cylinder of ear of grain class crop - Google Patents

General type threshing cylinder of ear of grain class crop Download PDF

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Publication number
CN114402817A
CN114402817A CN202210211592.6A CN202210211592A CN114402817A CN 114402817 A CN114402817 A CN 114402817A CN 202210211592 A CN202210211592 A CN 202210211592A CN 114402817 A CN114402817 A CN 114402817A
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China
Prior art keywords
threshing
rod
disc
rod part
positioning
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Granted
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CN202210211592.6A
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CN114402817B (en
Inventor
王刚
吴崇友
张敏
金诚谦
金梅
梁苏宁
江涛
关卓怀
汤庆
沐森林
蒋兰
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Nanjing Research Institute for Agricultural Mechanization Ministry of Agriculture
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Nanjing Research Institute for Agricultural Mechanization Ministry of Agriculture
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Publication of CN114402817A publication Critical patent/CN114402817A/en
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01FPROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
    • A01F12/00Parts or details of threshing apparatus
    • A01F12/18Threshing devices
    • A01F12/22Threshing cylinders with teeth
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01FPROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
    • A01F12/00Parts or details of threshing apparatus
    • A01F12/18Threshing devices
    • A01F12/181Adjustable threshing mechanisms
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01FPROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
    • A01F12/00Parts or details of threshing apparatus
    • A01F12/18Threshing devices
    • A01F12/20Threshing cylinders with ribs

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Threshing Machine Elements (AREA)

Abstract

The invention discloses a general threshing cylinder for panicle crops, which comprises two oppositely-arranged breadth disks and a plurality of groups of threshing components which are arranged between the two breadth disks and are arranged in a circumferential array; the threshing component comprises a rod part and a shaft part which are coaxially and rotatably sleeved, a plurality of groups of element groups are arranged on the rod part, and each group of element groups comprises a plurality of threshing elements; the threshing cylinder also comprises a positioning mechanism for connecting the rod part and the breadth disc; a polygonal block body is fixed at the extending end of the rod part; the breadth plate is provided with a notch corresponding to each group of threshing components; in a locked state, the block body is embedded in the notch, and a pair of opposite side surfaces of the block body is attached to two side walls of the notch; in the unlocked state, the blocks are movable in the radial direction of the web disc and can enter and exit the recess. When in use, the angle of the rod part can be adjusted according to different crop types, and a proper threshing element is selected for operation. The threshing element can be replaced without disassembling and additionally installing parts, technical support is provided for multiple purposes of the combine harvester, and the operation is convenient.

Description

General type threshing cylinder of ear of grain class crop
Technical Field
The invention relates to the technical field of agricultural machinery, in particular to a universal threshing cylinder for panicle crops.
Background
The threshing cylinder is a core component of a crop harvesting machine, and realizes threshing by combing, beating and rubbing crops. Most of the existing harvesting machines are general harvesting machines capable of harvesting multiple crops such as wheat, rice, soybean, rape and the like, but in order to achieve the best threshing effect, the requirements of each crop on threshing elements are different, therefore, when different crops are harvested, the threshing elements or the whole roller needs to be replaced manually under normal conditions, the threshing elements contained in the threshing roller are many, the threshing elements are replaced in sequence, time and labor are wasted, if the whole roller is replaced, the dismounting difficulty is also great, a plurality of workers are needed to be equipped frequently, and the spare roller needs to occupy the space for storage, and the carrying is inconvenient.
In the prior art, patent CN104488456B provides a threshing cylinder for panicle crops and a corresponding combine harvester, in which threshing cylinder 100 is provided with threshing spike teeth 6 and rasp bar blocks 7 on the front half part, and threshing cylinder 100 is provided with threshing spike teeth 6 and separating bar teeth 12 on the rear half part. The threshing teeth 6 are spaced 180 degrees apart from the rasp bar blocks 7 and the separating bar teeth 12 in the circumferential direction of the threshing element support bars 8, and when the harvested rice or wheat is threshed by the threshing teeth 6, the rasp bar blocks 7 and the separating bar teeth 12 are close to the radial center of the threshing cylinder 100 for ear-grain type crops, so that no threshing work is performed, and when additional grains need to be threshed by the second threshing element group, each threshing element support bar 8 can be rotated 180 degrees by a tool, so that the rasp bar blocks 7 and the separating bar teeth 12 are located radially outside the threshing cylinder 100. This patent also includes a positioning mechanism that enables the support bars 8 to be in a locked state, in which the support bars 8 are relatively fixedly disposed in the positioning web 9, and an unlocked state; in the unlocked state, the support bar 8 can rotate in the positioning web 9. The positioning element comprises a limit lever 10, and in order to move the limit lever 10 between a locked position and an unlocked position, a conical drive V is provided which moves in the direction of the axis of the threshing cylinder 100.
In the above patent, compared with the traditional threshing cylinder, the design change is very large, the structure of the positioning mechanism is complex, the cost is high and the assembly difficulty is large.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides the universal threshing cylinder for the panicle and grain crops, which has the advantages of simple structure, low cost and simpler operation.
The technical scheme is as follows: in order to achieve the purpose, the general threshing cylinder for the panicle crops comprises two opposite breadth disks and a plurality of groups of threshing components which are arranged between the two breadth disks and are arranged in a circumferential array;
the threshing component comprises a strip-shaped rod part and a plurality of groups of component groups arranged on the rod part; the element group comprises N different threshing elements, wherein N is more than or equal to 2; all the threshing elements contained in the same element group are staggered at equal angles around the rod part;
the positioning mechanism enables the rod part to be in a locking state or an unlocking state;
the threshing assembly further comprises a shaft portion; the rod part is of a hollow structure, the shaft part penetrates through the inside of the rod part, and the shaft part and the rod part are in running fit; the shaft part is provided with a protruding end protruding out of the rod part, and the positioning mechanism is arranged between the shaft part and the disc;
a block body is fixed at the extending end of the rod part, the section of the block body is in the shape of a regular polygon, and the number of edges of the regular polygon is 2N;
the width disc is provided with a notch corresponding to each group of threshing components; in the locked state, the block is embedded in the notch, and a pair of opposite side surfaces of the block are attached to two side walls of the notch; in the unlocked state, the blocks are movable in a radial direction of the web and into and out of the recess.
Further, the positioning mechanism comprises a positioning rod; the extending end is provided with a through hole for radially penetrating the extending end; the positioning rod penetrates through the through hole and can rotate relative to the shaft part;
the positioning rod is provided with two limiting parts, and the extending end is arranged between the two limiting parts;
the width disc is provided with radial adjusting holes, and the positioning rod penetrates through the adjusting holes; the positioning rod is fixed relative to the disc when the rod part is in a locking state; when the rod part is in an unlocking state, the positioning rod can move along the axial direction of the adjusting hole.
Further, N is 3, and the offset angle between two adjacent threshing elements in the same element group is 120 °.
Furthermore, the three threshing elements in the same element group are respectively plate teeth, spike teeth and rasp bars.
Further, still include the transmission shaft, the one end of transmission shaft is fixed with power and inserts.
Furthermore, the positioning mechanism also comprises driving disks, and the two driving disks are respectively arranged on the breadth disks; the driving disc can rotate relative to the width disc to adjust the angle and can be fixed relative to the width disc;
the driving disc is provided with an arc-shaped groove corresponding to each shaft part; both ends of the shaft part are arranged in the arc-shaped grooves; the distances from the two ends of the arc-shaped groove to the center of the driving disc are different;
the breadth disc is provided with a rotating block corresponding to each rod part, and the rotating blocks are rotatably connected with the breadth disc; the rotating block is used for matching with the V-shaped groove used by the block body; when the block is mated with the V-shaped groove, the block is disposed outside the notch; and a synchronous connecting rod is connected between every two adjacent rotating blocks.
Has the advantages that: the universal threshing cylinder for the panicle crops is provided with the sleeved rod part and the sleeved shaft part, the rod part is provided with the element group, the positioning mechanism is connected with the shaft part and the amplitude disc, the end part of the rod part is provided with the block body, the amplitude disc is provided with the notch for the block body to enter and exit, and when the universal threshing cylinder is used, the angle of the rod part can be positioned to enable the corresponding threshing element to face outwards according to the type of the harvested crops.
Drawings
FIG. 1 is a perspective view of a general threshing cylinder for ear crops according to a first embodiment;
FIG. 2 is an enlarged structural view of portion A of FIG. 1;
FIG. 3 is a first cross-sectional view of a general threshing cylinder for kernel-based ear crops according to a first embodiment;
FIG. 4 is a second cross-sectional view of the general threshing cylinder for ear crops according to the first embodiment;
FIG. 5 is a first perspective view of a second embodiment of a universal threshing cylinder for panicle crops;
FIG. 6 is a second perspective partial view of a general threshing cylinder for ear crops according to a second embodiment;
FIG. 7 is a side view of a second embodiment of a universal threshing cylinder for panicle crops;
FIG. 8 is a sectional view of a second embodiment of a threshing cylinder for a ear crop in a first state;
FIG. 9 is a second sectional view of the general threshing cylinder for ear crops according to the second embodiment;
FIG. 10 is a sectional view of a third embodiment of a general threshing cylinder for ear crops;
in the figure: 1-a plate; 11-a notch; 12-a ring-shaped portion; 2-a threshing component; 21-a rod part; 22-a shaft portion; 23-block body; 24-rasp bar; 25-plate teeth; 26-spike teeth; 3-a positioning mechanism; 31-a positioning rod; a-a limiting part; 32-a nut; 33-a drive disc; 331-an arc-shaped slot; 332-arc-shaped bar holes; 34-a turning block; 35-a synchronizing link; 36-a screw; 4-a transmission shaft; 5-power access piece.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Example one
The general threshing cylinder for panicle crops as shown in fig. 1 comprises two opposite breadth disks 1 and a plurality of groups of threshing components 2 which are arranged between the two breadth disks 1 and are arranged in a circumferential array.
The threshing component 2 comprises a long bar part 21 and a plurality of groups of components mounted on the bar part 21; the element group comprises N different threshing elements, wherein N is more than or equal to 2; all the threshing elements comprised by the same set of elements are staggered at equal angles around the stem 21. In the threshing cylinder for panicle crops shown in fig. 1 and 3, N is 3, that is, each group of element sets includes three threshing elements, the three threshing elements are respectively a rasp bar 24, a plate tooth 25 and a spike tooth 26, and the staggered angle between two adjacent threshing elements in the same element set is 120 °. In actual use, for different crops, corresponding threshing elements can be used for threshing, such as: for wheat, threshing operation is generally carried out by adopting spike teeth 26 or plate teeth 25; for rice, threshing work is generally performed by using the plate teeth 25; for corn, threshing is generally carried out by adopting spike teeth 26 or plate teeth 25; for rape, threshing operation is generally carried out by adopting plate teeth 25 or spike teeth 26; for soybeans, threshing is generally performed using plate teeth 25 or rasp bars 24.
The general threshing cylinder for the panicle crops further comprises a positioning mechanism 3, and the positioning mechanism 3 enables the rod part 21 to be in a locking state or an unlocking state; the threshing assembly 2 further comprises a shaft portion 22; the rod part 21 is of a hollow structure, and the shaft part 22 penetrates through the inside of the rod part 21 and is in running fit with the rod part; the shaft portion 22 has a projecting end projecting beyond the shaft portion 21, and the positioning mechanism 3 is disposed between the shaft portion 22 and the web 1; as shown in fig. 2 and 4, a block 23 is fixed at the extending end of the rod 21, the cross section of the block 23 is in the shape of a regular polygon, and the number of edges of the regular polygon is 2N; the width disc 1 is provided with a notch 11 corresponding to each group of threshing components 2; in the locked state, the blocks 23 are embedded in the corresponding notches 11, and a pair of opposite side surfaces of the blocks 23 are abutted against two side walls of the notches 11; in the unlocked state, the blocks 23 are movable in the radial direction of the web 1 and can enter and exit the recess 11.
By adopting the structure, when the threshing cylinder carries out threshing operation, the threshing elements (i.e. the outward threshing elements) in working state in all the element groups can be the same type (for example, all the element groups are in working state by the spike teeth 26) or different types (namely, the crops need to be threshed by combining a plurality of threshing elements, for example, in two adjacent element groups, the spike teeth 26 and the plate teeth 25 are respectively used as the threshing elements in working state in the corresponding element groups, so that the effect of staggered arrangement of the spike teeth 26 and the plate teeth 25 in the circumferential direction is formed). The threshing elements which are not outward in all the element groups are in an idle state. When the type of the harvested crops is changed and other threshing elements or other combinations of certain threshing elements are needed to be used for threshing, firstly, the positioning mechanism 3 corresponding to the separation component 2 of the threshing element to be adjusted releases the locking effect on the rod part 21 of the threshing element, so that the rod part 21 is in an unlocking state; then, the mobile stem 21 is made to move along the radial direction of the web 1, making the blocks 23 come out of the corresponding notches 11; then, the lever portion 21 is rotated to make the target threshing element face outward; then, the moving rod 21 is moved back along the radial direction of the web 1, so that the blocks 23 are inserted into the corresponding notches 11 again (at this time, the other pair of opposite side surfaces of the blocks 23 are attached to the two side walls of the notches 11); finally, the positioning mechanism 3 is caused to lock the lever portion 21.
Specifically, the positioning mechanism 3 includes a positioning rod 31; the extending end is provided with a through hole for radially penetrating the extending end; the positioning rod 31 passes through the through hole, and the positioning rod 31 can rotate relative to the shaft part 22; the positioning rod 31 is provided with two limiting parts a, and the extending end is arranged between the two limiting parts a; the width disc 1 is provided with radial adjusting holes, and the positioning rod 31 penetrates through the adjusting holes; when the positioning rod 31 is fixed relative to the breadth plate 1 and the block 23 is embedded in the notch 11, the rod part 21 is in a locking state, and threshing operation can be carried out at the moment; the locating rod 31 can move axially along the adjusting hole to adjust the threshing gap, if the block 23 is separated from the notch 11, the rod part 21 is in an unlocking state, the threshing element can be adjusted at the moment, and different threshing elements are selected to be in a working state.
In this embodiment, the disc 1 has an annular portion 12, and the adjustment hole penetrates the annular portion 12 along one side in the radial direction thereof; the main body part of the positioning rod 31 is a screw rod, the screw rod penetrates through the adjusting hole, nuts 32 located on two sides of the positioning rod 31 are installed on the positioning rod 31, when the threshing element in the working state needs to be changed, the nut 32 on the positioning rod 31 close to the center of the annular part 12 can be removed or the nut 32 can be moved to a position close to the center of the annular part 12, then the rod part 21 is pulled to enable the positioning rod 31 to move along the adjusting hole until the block 23 is separated from the corresponding notch 11, after the adjustment is completed, the nut 32 is screwed back after the block 23 is installed back to the corresponding notch 11, and the nut is made to be attached to the end part of the adjusting hole. In addition, by adjusting the axial position of the two nuts 32 on the positioning rod 31, the threshing gap (i.e. the gap between the threshing element and the concave plate on the harvester) can be adjusted, and a better separation effect is achieved.
Preferably, the power transmission device further comprises a transmission shaft 4, wherein a power access part 5 is fixed at one end of the transmission shaft 4, and in the embodiment, the power access part 5 is a chain wheel.
Example two
The general threshing cylinder for panicle crops as shown in fig. 5-6 comprises two opposite breadth disks 1 and a plurality of groups of threshing components 2 which are arranged between the two breadth disks 1 and are arranged in a circumferential array.
The threshing component 2 comprises a long bar part 21 and a plurality of groups of components mounted on the bar part 21; the element group comprises N different threshing elements, wherein N is more than or equal to 2; all the threshing elements comprised by the same set of elements are staggered at equal angles around the stem 21. In the general threshing cylinder for panicle crops shown in fig. 1, N is 3, that is, each group of element groups includes three threshing elements, the three threshing elements are respectively a rasp bar 24, a plate tooth 25 and a spike tooth 26, and the staggered angle between two adjacent threshing elements in the same element group is 120 °.
The general threshing cylinder for the panicle crops further comprises a positioning mechanism 3, and the positioning mechanism 3 enables the rod part 21 to be in a locking state or an unlocking state; the threshing assembly 2 further comprises a shaft portion 22; the rod part 21 is of a hollow structure, and the shaft part 22 penetrates through the inside of the rod part 21 and is in running fit with the rod part; the shaft portion 22 has a projecting end projecting beyond the shaft portion 21, and the positioning mechanism 3 is disposed between the shaft portion 22 and the web 1; as shown in fig. 8, a block 23 is fixed at the extending end of the rod 21, the cross section of the block 23 is in the shape of a regular polygon, and the number of edges of the regular polygon is 2N; the width disc 1 is provided with a notch 11 corresponding to each group of threshing components 2; in the locked state, the blocks 23 are embedded in the corresponding notches 11, and a pair of opposite side surfaces of the blocks 23 are abutted against two side walls of the notches 11; in the unlocked state, the blocks 23 are movable in the radial direction of the web 1 and can enter and exit the recess 11.
The positioning mechanism 3 comprises a positioning rod 31; the extending end is provided with a through hole for radially penetrating the extending end; the positioning rod 31 passes through the through hole, and the positioning rod 31 can rotate relative to the shaft part 22; the positioning rod 31 has two limiting parts a (refer to the first embodiment), and the extending end is arranged between the two limiting parts a; the width disc 1 is provided with radial adjusting holes, and the positioning rod 31 penetrates through the adjusting holes; the positioning rod 31 is fixed with respect to the disc 1 when the rod portion 21 is in the locked state; when the lever portion 21 is in the unlocked state, the positioning lever 31 can move in the axial direction of the adjustment hole.
Different from the first embodiment, in the present embodiment, the positioning mechanism 3 further includes driving disks 33, and the two driving disks 33 are respectively mounted on the web disk 1; the driving disc 33 can rotate relative to the web disc 1 for adjusting the angle and can be fixed relative to the web disc 1; as shown in fig. 5 and fig. 7, in this embodiment, an arc-shaped hole 332 is formed in the driving disk 33, the screw 36 passing through the arc-shaped hole 332 fixes the driving disk 33 on the driving disk 33, and when the driving disk 33 needs to be rotated, the screw 36 is loosened.
The driving disk 33 has an arc-shaped slot 331 corresponding to each shaft portion 22; both ends of the shaft part 22 are arranged in the arc-shaped grooves 331; the distances from the two ends of the arc-shaped groove 331 to the center of the driving disk 33 are different;
as shown in fig. 6, a turning block 34 is mounted on the web disc 1 in correspondence to each of the rods 21, the turning block 34 being rotatably coupled with respect to the web disc 1; the turning block 34 is used for matching with a V-shaped groove used by the block body 23; when the block 23 is mated with the V-shaped groove, the block 23 is placed outside the notch 11; and a synchronous connecting rod 35 is connected between every two adjacent rotating blocks 34.
Through the structure, when the threshing elements need to be switched, the screw 36 is loosened, then the driving disc 33 is rotated, the shaft part 22 is moved in the direction away from the center of the breadth disc 1 under the action of the arc-shaped groove 331, the block 23 moves along the notch 11 and is separated from the notch 11, after the block is separated from the notch 11, two adjacent surfaces of the block 23 are contacted with two surfaces of the V-shaped groove, the state is shown in fig. 9, then one block 23 is rotated (the block 23 can be rotated by a tool such as a wrench and the like) to drive all the rod parts 21 to rotate under the synchronous action of the rotating block 34 and the synchronous connecting rod 35, so that all the threshing assemblies 2 are synchronously adjusted, and the state after the rotation is shown in fig. 10; subsequently, the driving disk 33 is rotated again to make each shaft portion 22 move along the radial direction of the web disk 1, the shaft portion 22 carries the corresponding rod portion 21 to move along the radial direction of the web disk 1, the block 23 on the rod portion 21 returns to the corresponding notch 11, and during the process that the block 23 returns to the corresponding notch 11, one surface of the V-shaped groove plays a guiding role (as shown in fig. 10) facing the block 23 to prevent the rod portion 21 from rotating in the process, so that the switching of the threshing elements is completed; finally, one more turning block 34 is turned to reset all turning blocks 34.
By the structure and the adjusting mode, the time for switching the threshing elements can be greatly saved.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.

Claims (6)

1. A general threshing cylinder for ear-grain crops comprises two opposite breadth disks (1) and a plurality of groups of threshing components (2) which are arranged between the two breadth disks (1) and are arranged in a circumferential array;
the threshing component (2) comprises a long-strip-shaped rod part (21) and a plurality of groups of components mounted on the rod part (21); the element group comprises N different threshing elements, wherein N is more than or equal to 2; all the threshing elements contained in the same element group are staggered at equal angles around the rod part (21);
the locking mechanism further comprises a positioning mechanism (3), and the rod part (21) is in a locking state or an unlocking state by the positioning mechanism (3);
the method is characterized in that:
the threshing assembly (2) further comprises a shaft portion (22); the rod part (21) is of a hollow structure, the shaft part (22) penetrates through the inside of the rod part (21), and the rod part and the shaft part are in rotating fit; the shaft part (22) is provided with a protruding end protruding out of the rod part (21), and the positioning mechanism (3) is arranged between the protruding end of the shaft part (22) and the disc (1);
a block body (23) is fixed at the extending end of the rod part (21), the section of the block body (23) is in the shape of a regular polygon, and the number of the edges of the regular polygon is 2N;
the breadth disc (1) is provided with a notch (11) corresponding to each group of threshing components (2); in the locked state, the block (23) is embedded in the notch (11), and a pair of opposite side surfaces of the block (23) are abutted against two side walls of the notch (11); in the unlocked state, the blocks (23) are movable in the radial direction of the web (1) and can enter and exit the recesses (11).
2. Universal threshing cylinder for panicle crops according to claim 1, characterized in that the positioning means (3) comprise a positioning bar (31); the extending end is provided with a through hole for radially penetrating the extending end; the positioning rod (31) passes through the through hole, and the positioning rod (31) can rotate relative to the shaft part (22);
the positioning rod (31) is provided with two limiting parts (a), and the extending end is arranged between the two limiting parts (a);
the width disc (1) is provided with radial adjusting holes, and the positioning rod (31) penetrates through the adjusting holes; -when the rod (21) is in the locked condition, the positioning rod (31) is fixed with respect to the disc (1); when the rod part (21) is in an unlocking state, the positioning rod (31) can move along the axial direction of the adjusting hole.
3. The universal threshing cylinder for panicle crops as claimed in claim 1, wherein N is 3, and the offset angle between two adjacent threshing elements in the same element group is 120 °.
4. Universal threshing cylinder for panicle crops according to claim 1, characterized in that the three threshing elements comprised in the same set of elements are respectively a rasp bar (24), a plate tooth (25) and a spike tooth (26).
5. General purpose threshing cylinder for panicle crops according to claim 1, characterized in that it further comprises a transmission shaft (4), one end of said transmission shaft (4) is fixed with a power take-in (5).
6. General purpose threshing cylinder for panicle crops according to claim 2, characterized in that said positioning means (3) further comprises driving discs (33), both said driving discs (33) being mounted on said web disc (1) respectively; the driving disc (33) can rotate relative to the width disc (1) for adjusting the angle and can be fixed relative to the width disc (1);
the driving disk (33) is provided with an arc-shaped groove (331) corresponding to each shaft part (22); both ends of the shaft part (22) are arranged in the arc-shaped grooves (331); the distances from the two ends of the arc-shaped groove (331) to the center of the driving disc (33) are different;
a rotating block (34) arranged corresponding to each rod part (21) is mounted on the breadth disc (1), and the rotating blocks (34) are rotatably connected relative to the breadth disc (1); the rotating block (34) is used for matching with a V-shaped groove used by the block body (23); when the block (23) is mated with the V-shaped groove, the block (23) is placed outside the notch (11); and a synchronous connecting rod (35) is connected between every two adjacent rotating blocks (34).
CN202210211592.6A 2022-03-01 2022-03-01 General type threshing cylinder of ear of grain class crop Active CN114402817B (en)

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN115362829A (en) * 2022-10-25 2022-11-22 江苏友清生物科技有限公司 Grain threshing device
CN117617003A (en) * 2024-01-26 2024-03-01 山西清高食品股份有限公司 Roller rotary threshing device for coarse cereal crops

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CN104488456A (en) * 2014-12-17 2015-04-08 中联重机股份有限公司 Multifunctional threshing drum and corresponding combine harvester
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CN115362829A (en) * 2022-10-25 2022-11-22 江苏友清生物科技有限公司 Grain threshing device
CN117617003A (en) * 2024-01-26 2024-03-01 山西清高食品股份有限公司 Roller rotary threshing device for coarse cereal crops
CN117617003B (en) * 2024-01-26 2024-04-12 山西清高食品股份有限公司 Roller rotary threshing device for coarse cereal crops

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