CN217407116U - Threshing and separating system and combine harvester - Google Patents

Abstract

The utility model provides a threshing and separating system and combine harvester. The threshing and separating system comprises: the threshing machine comprises a threshing machine body, a tangential flow roller, a threshing concave plate, a straw-chasing wheel and a separating mechanism, wherein the tangential flow roller, the threshing concave plate, the straw-chasing wheel and the separating mechanism are alternately assembled, the threshing concave plate is arranged on the threshing machine body, the tangential flow roller is arranged above the threshing concave plate, the straw-chasing wheel is respectively communicated with the threshing concave plate and the separating mechanism in a working procedure, the straw-chasing wheel is arranged above the rear side of the tangential flow roller, and the threshing concave plate is communicated with the separating mechanism in a working procedure at the rear part of the threshing concave plate. The tangential flow roller with the left and right rasp bars assembled alternately ensures full threshing, smooth feeding, reduced seed loss, improved harvesting efficiency, good adaptability of harvested crops, simplified structure and reduced cost.

Description

Threshing and separating system and combine harvester

Technical Field

The utility model relates to a harvester technical field especially relates to a threshing and separating system and combine.

Background

With the continuous development of domestic animal husbandry, the demand of crop straws is increasing day by day, farmers have new requirements on the length of straw discharged by harvested crops, the length of the discharged crop straws is required to be longer and longer, the traditional transverse axial flow and longitudinal axial flow roller harvesters cannot meet the requirements of users, but can ensure that the threshing is clean and the loss is small, the discharged straws are long, only a technical route of a straw grader can be adopted, the existing product cannot ensure that the loss of grains is small, the adaptability of the harvested crops is good, the overall structure is complex, and the manufacturing cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the prior art is not enough, and provides a threshing and separating system and a combine harvester.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a threshing and separating system, comprising: the threshing machine comprises a threshing machine body, a tangential flow roller, a threshing concave plate, a straw-chasing wheel and a separating mechanism, wherein the tangential flow roller, the threshing concave plate, the straw-chasing wheel and the separating mechanism are alternately assembled, the tangential flow roller is arranged above the threshing concave plate, the straw-chasing wheel is respectively communicated with the threshing concave plate and the separating mechanism in a working procedure, the straw-chasing wheel is arranged above the rear side of the tangential flow roller, and the threshing concave plate is communicated with the separating mechanism behind the threshing concave plate in a working procedure.

Adopt the utility model discloses technical scheme's beneficial effect is: the tangential flow roller with the left and right rasp bars assembled alternately ensures full threshing, smooth feeding, reduced seed loss, improved harvesting efficiency, good adaptability of harvested crops, simplified structure and reduced cost.

Further, the tangential drum comprises: the threshing machine comprises a plurality of left rasp bars, a plurality of right rasp bars, a plurality of width discs and a roller shaft, wherein the roller shaft is rotatably installed on a threshing machine body, the roller shaft is located above a threshing concave plate and is sleeved on the roller shaft at intervals, the left rasp bars and the right rasp bars are installed on the outer side boundary of the width discs, left-handed threads are arranged on the left rasp bars, right-handed threads are arranged on the right rasp bars, and the left rasp bars and the right rasp bars are alternately arranged at intervals.

The beneficial effect of adopting the further technical scheme is that: aiming at the users who have requirements on the grass straws in the pasturing area, the straw loss is reduced and the harvesting adaptability of various crops is improved under the premise that the straw length discharged by the harvested crops is ensured by a straw grader type, namely the multi-purpose of one machine. In order to ensure that threshing is sufficient and feeding is smooth, a mode of alternately assembling the left threaded rod and the right threaded rod is adopted, in order to ensure that the types of the harvested crops are multiple, the left threaded rod and the right threaded rod adopt an assembling mode, different threshing elements can be replaced for harvesting different crops, for example, the harvested rice can be switched to spike teeth. The threshing concave is fixedly arranged on the threshing machine body through a mounting seat of a rotating shaft above the threshing concave by bolts.

Furthermore, one end of the roller shaft is sleeved with a roller speed-changing wheel, two ends of the roller shaft are respectively sleeved with a first bearing, the roller speed-changing wheel is positioned outside the first bearing, the roller speed-changing wheel is connected with the straw-by-straw wheel, the roller shaft is rotatably installed on the threshing machine body through the first bearing, and the left threaded rod and the right threaded rod are both parallel to the roller shaft.

The beneficial effect of adopting the further technical scheme is that: the roller speed-changing wheel is used for driving a roller shaft to rotate, and the roller shaft is arranged on the threshing machine body through bearings at the left end and the right end.

Furthermore, a gap is formed between the threshing concave plate and the tangential flow roller, the threshing concave plate is connected with a gap adjusting mechanism, the gap adjusting mechanism is positioned above the tangential flow roller, a stone collecting groove is arranged in front of the threshing concave plate, a check curtain is arranged behind the straw wheel, and the stone collecting groove and the check curtain are both arranged on the threshing machine body.

The beneficial effect of adopting the further technical scheme is that: aiming at the users who have the demand on the grass straws in the pasturing area, the straw harvester type reduces the harvesting loss and improves the harvesting adaptability of various crops on the premise of ensuring the length of the straws discharged by the harvested crops, namely the multi-purpose of one machine. The harvester enters the threshing system from the inlet of the threshing concave plate through the header system, the material passes through a gap between the threshing concave plate and the roller, is kneaded and threshed under the combined action of rotary beating and the threshing concave plate of the roller, one part of threshed material falls into the cleaning system through the threshing concave plate, the other part of threshed material enters the separating mechanism along with the straw, when the threshed material enters the separating mechanism, the crop can do circular motion along with the roller, under the action of the straw-chasing wheel throwing plate, the material changes the motion direction, and enters the straw-chasing device to separate the straw from the threshed material. When the harvester harvests different crops, the threshing gap before harvesting needs to be adjusted according to the specific harvested crops, so that the quality of the harvested crops, namely the qualified breakage rate and the grain loss rate, can be ensured, and the harvester is suitable for harvesting different crops. The problems of large harvesting loss, low efficiency and single crop harvesting of the conventional straw grader type are solved. In order to achieve better adaptability of harvested crops, the front gap and the rear gap of the threshing concave plate can be synchronously adjusted. The left side and the right side of the stone collecting groove are assembled on the machine body through fixing bolts. The threshing concave is fixedly arranged on the threshing machine body through an upper rotating shaft mounting seat by bolts.

Further, the gap adjusting mechanism includes: adjustment handle, first pivot, pull rod, pivot cover, second pivot, a pair of first concave pull rod and a pair of second concave pull rod, first pivot and the second pivot is all installed on the threshing machine body, threshing concave passes through the second pivot is installed on the threshing machine body, adjustment handle's bottom with the one end of first pivot is connected, the one end of pull rod with first pivot is connected, the other end of pull rod with the pivot cover is connected, the pivot cover is established the one end of second pivot, it is a pair of the top and a pair of first concave pull rod the top of second concave pull rod all with the second pivot is articulated, and is a pair of the bottom and a pair of first concave pull rod the bottom of second concave pull rod all with threshing concave is articulated.

The beneficial effect of adopting the further technical scheme is that: aiming at the users who have the demand on the grass straws in the pasturing area, the straw harvester type reduces the harvesting loss and improves the harvesting adaptability of various crops on the premise of ensuring the length of the straws discharged by the harvested crops, namely the multi-purpose of one machine. The harvester enters the threshing system from the inlet of the threshing concave plate through the header system, the material passes through a gap between the threshing concave plate and the roller, is kneaded and threshed under the combined action of rotary beating and the threshing concave plate of the roller, one part of threshed material falls into the cleaning system through the threshing concave plate, the other part of threshed material enters the separating mechanism along with the straw, when the threshed material enters the separating mechanism, the crop can do circular motion along with the roller, under the action of the straw-chasing wheel throwing plate, the material changes the motion direction, and enters the straw-chasing device to separate the straw from the threshed material. When the harvester harvests different crops, the threshing gap before harvesting needs to be adjusted according to the specific harvested crops, so that the quality of the harvested crops, namely the qualified breakage rate and the grain loss rate, can be ensured, and the harvester is suitable for harvesting different crops. The problems of large harvesting loss, low efficiency and single crop harvesting of the existing straw grader type are solved. In order to achieve better adaptability of harvested crops, the front gap and the rear gap of the threshing concave plate can be synchronously adjusted. The threshing concave is fixedly arranged on the threshing machine body through an upper rotating shaft mounting seat by bolts.

Further, the gap adjustment mechanism further includes: spacing cardboard, pinion rack limiting plate, pinion rack mount pad, spacing cardboard is flexible install adjustment handle's middle part, the pinion rack is installed on the pinion rack mount pad, the pinion rack limiting plate is installed adjustment handle's middle part, the pinion rack is located the pinion rack limiting plate with between the adjustment handle, it is a pair of the top of first concave plate pull rod and a pair of the top of second concave plate pull rod all through adjusting screw with the second pivot is articulated.

The beneficial effect of adopting the further technical scheme is that: when the harvester harvests different crops, the threshing gap before harvesting needs to be adjusted according to the specific harvested crops, so that the quality of the harvested crops, namely the qualified breakage rate and the grain loss rate, can be ensured, and the harvester is suitable for harvesting different crops. The problems of large harvesting loss, low efficiency and single crop harvesting of the conventional straw grader type are solved. In order to achieve better adaptability of harvested crops, the front and back gaps of the threshing concave plate can be synchronously adjusted.

Furthermore, the straw chopper wheel is of a cuboid structure, a power output belt wheel is installed at one end of the straw chopper wheel and connected with the tangential flow roller, a power input belt wheel and a second bearing are installed at the other end of the straw chopper wheel, a straw chopper wheel shaft is installed in the middle of the straw chopper wheel and located between the power input belt wheel and the straw chopper wheel, the straw chopper wheel shaft is rotatably installed on the threshing machine body through the second bearing, a polishing plate is installed on the edge of the straw chopper wheel, and the polishing plate is of an arc plate structure.

The beneficial effect of adopting the further technical scheme is that: the harvester makes the material enter the threshing system from the inlet of the threshing concave plate through the header system, the material passes through the gap between the threshing concave plate and the roller, the roller rotates and beats and kneads and threshes under the combined action of the threshing concave plate and the threshing concave plate, one part of the threshed material falls into the cleaning system through the threshing concave plate, the other part of the threshed material enters the separating mechanism along with the straw, when the threshed material enters the separating mechanism, the crop can do circular motion along with the roller, under the action of the straw-chasing wheel throwing plate, the material changes the motion direction and enters the straw-chasing device to separate the straw and the threshed material. Is a core component for guiding and throwing the threshed materials to a separating mechanism (a straw shaker). The drum shaft is arranged on the thresher body through bearings at the left end and the right end.

Further, the separation mechanism includes: the threshing machine comprises a plurality of straw grading devices, a front crankshaft, a rear crankshaft and a power input wheel, wherein the front crankshaft and the rear crankshaft are rotatably arranged on the threshing machine body, the power input wheel is arranged on the front crankshaft, the bottoms of the front sides of the straw grading devices are arranged on the front crankshaft, and the bottoms of the rear sides of the straw grading devices are arranged on the rear crankshaft.

The beneficial effect of adopting the further technical scheme is that: the harvester enters the threshing system from the inlet of the threshing concave plate through the header system, the material passes through a gap between the threshing concave plate and the roller, is kneaded and threshed under the combined action of rotary beating and the threshing concave plate of the roller, one part of threshed material falls into the cleaning system through the threshing concave plate, the other part of threshed material enters the separating mechanism along with the straw, when the threshed material enters the separating mechanism, the crop can do circular motion along with the roller, under the action of the straw-chasing wheel throwing plate, the material changes the motion direction, and enters the straw-chasing device to separate the straw from the threshed material. The straw grader reciprocates up and down and back and forth under the action of the crankshaft to convey the straw backwards, so that the grains and chaffs fall from holes on the key surface of the straw grader and enter the screen surface of the cleaning system. The document-chasing devices do up-and-down and front-and-back reciprocating motion in turn along with the four document-chasing devices on the circumference of the crankshaft. The straw grader is connected with the crankshaft through a nylon bearing bush, the nylon bearing bush is divided into two halves, embraces the crankshaft and is in clearance fit with the crankshaft, and the nylon bearing bush seat is fixedly connected with the straw grader through a bolt. The straw shaker is installed on the threshing machine body through bearings on the left side and the right side of a front crankshaft and a rear crankshaft.

Further, the lateral wall of preceding bent axle and the lateral wall of back bent axle all pass through the nylon axle bush and are connected with the ware of making a manuscript by one rotation, the third bearing is all installed at the both ends of preceding bent axle and the both ends of back bent axle, the cover is equipped with the bearing mount pad on the lateral wall of third bearing, the bearing mount pad is installed on the thresher body, the ware of making a manuscript by one includes: the key surface is arranged in the shell welding process and is of a stepped structure, a plurality of bulges and a plurality of through holes are formed in the key surface, and the bulges and the through holes are alternately arranged at intervals.

The beneficial effect of adopting the further technical scheme is that: the straw grader reciprocates up and down and back and forth under the action of the crankshaft to convey the straw backwards, so that the grains and chaffs fall from holes on the key surface of the straw grader and enter the screen surface of the cleaning system. The key surface is formed by combining continuous bulges and through holes, the bulges push the straw device, and the holes are used for leaking the detached substances (seeds and chaffs). The document-chasing devices do up-and-down and front-and-back reciprocating motion in turn along with the four document-chasing devices on the circumference of the crankshaft. The straw grader is connected with the crankshaft through a nylon bearing bush, the nylon bearing bush is divided into two halves, embraces the crankshaft and is in clearance fit with the crankshaft, and the nylon bearing bush seat is fixedly connected with the straw grader through a bolt. The straw shaker is installed on the threshing machine body through bearings on the left side and the right side of a front crankshaft and a rear crankshaft.

In addition, the utility model also provides a combine harvester, including above-mentioned arbitrary one threshing and separating system.

Adopt the utility model discloses technical scheme's beneficial effect is: the tangential flow roller with the left and right rasp bars assembled alternately ensures full threshing, smooth feeding, reduced seed loss, improved harvesting efficiency, good adaptability of harvested crops, simplified structure and reduced cost.

Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a schematic structural diagram of a threshing and separating system according to an embodiment of the present invention.

Fig. 2 is a second schematic structural diagram of a threshing and separating system according to an embodiment of the present invention.

Fig. 3 is a third schematic structural view of a threshing and separating system according to an embodiment of the present invention.

Fig. 4 is a fourth schematic structural view of a threshing and separating system provided in the embodiment of the present invention.

Fig. 5 is a fifth schematic structural view of a threshing and separating system provided in the embodiment of the present invention.

Fig. 6 is a sixth schematic structural view of a threshing and separating system provided in the embodiment of the present invention.

Fig. 7 is a seventh schematic structural view of a threshing and separating system according to an embodiment of the present invention.

Fig. 8 is an eighth schematic structural view of a threshing and separating system according to an embodiment of the present invention.

Fig. 9 is a ninth schematic structural view of a threshing and separating system according to an embodiment of the present invention.

Fig. 10 is a tenth schematic structural view of a threshing and separating system according to an embodiment of the present invention.

Fig. 11 is an eleventh schematic structural view of a threshing and separating system according to an embodiment of the present invention.

Fig. 12 is a twelfth schematic structural view of a threshing and separating system according to an embodiment of the present invention.

The reference numbers illustrate: 1. a thresher body; 2. a tangential flow roller; 3. a threshing concave plate; 4. a manuscript-by-manuscript wheel; 5. a separating mechanism; 6. a left rasp bar; 7. a right rasp bar; 8. a width disc; 9. a drum shaft; 10. a drum change wheel; 11. a first bearing; 12. a gap adjustment mechanism; 13. an adjusting handle; 14. a first rotating shaft; 15. a pull rod; 16. a rotating shaft sleeve; 17. a second rotating shaft; 18. a first concave plate pull rod; 19. a second concave plate pull rod; 20. a limiting clamping plate; 21. a toothed plate; 22. a toothed plate limiting plate; 23. a toothed plate mounting seat; 24. adjusting the screw rod; 25. a power take-off pulley; 26. a power input pulley; 27. a straw-by-straw wheel shaft; 28. a second bearing; 29. plate polishing; 30. a manuscript-by-manuscript device; 31. a front crankshaft; 32. a rear crankshaft; 33. a power input wheel; 34. nylon bearing bushes; 35. a third bearing; 36. a bearing mount; 37. welding the shell; 38. a key surface; 39. a stone collecting groove; 40. a curtain; 41. a protrusion; 42. a through hole; 43. lubricating the oil pipe.

Detailed Description

The principles and features of the present invention will be described with reference to the drawings, which are provided for illustration only and are not intended to limit the scope of the invention.

As shown in fig. 1 to 12, an embodiment of the present invention provides a threshing and separating system, which includes: threshing machine body 1, the tangent flow cylinder 2 of the alternate assembly of left and right rasp bar, thresh notch board 3, pursue the wheel 4, the separating mechanism 5, tangent flow cylinder 2 thresh notch board 3, pursue the wheel 4, the separating mechanism 5 is all installed on threshing machine body 1, tangent flow cylinder 2 is located thresh the top of notch board 3, pursue the wheel 4 respectively with thresh notch board 3 with the 5 processes of separating mechanism communicate, pursue the wheel 4 and be located the rear side top of tangent flow cylinder 2, thresh notch board 3 with be located thresh 5 processes of separating mechanism behind notch board 3 communicate.

Adopt the utility model discloses technical scheme's beneficial effect is: the tangential flow roller with the left and right rasp bars assembled alternately ensures full threshing, smooth feeding, reduced seed loss, improved harvesting efficiency, good adaptability of harvested crops, simplified structure and reduced cost.

As shown in fig. 1 to 12, further, the tangential drum 2 includes: a plurality of left rasp bars 6, a plurality of right rasp bars 7, a plurality of width of cloth dish 8, drum shaft 9 rotates to be installed threshing machine body 1 is last, drum shaft 9 is located threshing concave 3's top, and is a plurality of 8 interval covers of width of cloth dish are in on the drum shaft 9, and are a plurality of left side rasp bar 6 and a plurality of right side rasp bar 7 is all installed a plurality of on the outside border of width of cloth dish 8, be provided with left-handed screw on the rasp bar 6 of a left side, be provided with right-handed screw on the rasp bar 7 of the right side, it is a plurality of left side rasp bar 6 and a plurality of right side rasp bar 7 is interval setting in turn each other.

The beneficial effect of adopting the further technical scheme is that: aiming at the users who have the demand on the grass straws in the pasturing area, the straw harvester type reduces the harvesting loss and improves the harvesting adaptability of various crops on the premise of ensuring the length of the straws discharged by the harvested crops, namely the multi-purpose of one machine. In order to ensure that threshing is sufficient and feeding is smooth, a mode of alternately assembling the left threaded rod and the right threaded rod is adopted, in order to ensure that the types of the harvested crops are multiple, the left threaded rod and the right threaded rod adopt an assembling mode, different threshing elements can be replaced for harvesting different crops, for example, the harvested rice can be switched to spike teeth. The threshing concave is fixedly arranged on the threshing machine body through an upper rotating shaft mounting seat by bolts.

As shown in fig. 1 to 12, a drum speed-changing wheel 10 is sleeved on one end of the drum shaft 9, first bearings 11 are respectively sleeved on two ends of the drum shaft 9, the drum speed-changing wheel 10 is located outside the first bearings 11, the drum speed-changing wheel 10 is connected with the straw chasing wheel 4, the drum shaft 9 is rotatably mounted on the thresher body 1 through the first bearings 11, and the left rasp bar 6 and the right rasp bar 7 are both parallel to the drum shaft 9.

The beneficial effect of adopting the further technical scheme is that: the roller speed-changing wheel is used for driving a roller shaft to rotate, and the roller shaft is arranged on the threshing machine body through bearings at the left end and the right end.

Wherein the drum gear 10 is located at the rightmost side of the drum shaft 9, and the first bearing 11 is located between the drum gear 10 and the disc 8.

As shown in fig. 1 to 12, a gap is provided between the threshing concave 3 and the tangential flow drum 2, the threshing concave 3 is connected with a gap adjusting mechanism 12, the gap adjusting mechanism 12 is located above the tangential flow drum 2, a stone collecting groove 39 is provided in front of the threshing concave 3, a baffle 40 is provided behind the straw chopper 4, and the stone collecting groove 39 and the baffle 40 are both mounted on the thresher body 1.

The beneficial effect of adopting the further technical scheme is that: aiming at the users who have the demand on the grass straws in the pasturing area, the straw harvester type reduces the harvesting loss and improves the harvesting adaptability of various crops on the premise of ensuring the length of the straws discharged by the harvested crops, namely the multi-purpose of one machine. The harvester makes the material enter the threshing system from the inlet of the threshing concave plate through the header system, the material passes through the gap between the threshing concave plate and the roller, the roller rotates and beats and kneads and threshes under the combined action of the threshing concave plate and the threshing concave plate, one part of the threshed material falls into the cleaning system through the threshing concave plate, the other part of the threshed material enters the separating mechanism along with the straw, when the threshed material enters the separating mechanism, the crop can do circular motion along with the roller, under the action of the straw-chasing wheel throwing plate, the material changes the motion direction and enters the straw-chasing device to separate the straw and the threshed material. When the harvester harvests different crops, the threshing gap before harvesting needs to be adjusted according to the specific harvested crops, so that the quality of the harvested crops, namely the qualified breakage rate and the grain loss rate, can be ensured, and the harvester is suitable for harvesting different crops. The problems of large harvesting loss, low efficiency and single crop harvesting of the conventional straw grader type are solved. In order to achieve better adaptability of harvested crops, the front gap and the rear gap of the threshing concave plate can be synchronously adjusted. The left side and the right side of the stone collecting groove are assembled on the machine body through fixing bolts. The threshing concave is fixedly arranged on the threshing machine body through an upper rotating shaft mounting seat by bolts.

As shown in fig. 1 to 12, further, the gap adjusting mechanism 12 includes: an adjusting handle 13, a first rotating shaft 14, a pull rod 15, a rotating shaft sleeve 16, a second rotating shaft 17, a pair of first concave plate pull rods 18 and a pair of second concave plate pull rods 19, the first rotating shaft 14 and the second rotating shaft 17 are both arranged on the threshing machine body 1, the threshing concave 3 is arranged on the threshing machine body 1 through the second rotating shaft 17, the bottom of the adjusting handle 13 is connected with one end of the first rotating shaft 14, one end of the pull rod 15 is connected with the first rotating shaft 14, the other end of the pull rod 15 is connected with the rotating shaft sleeve 16, the rotating shaft sleeve 16 is sleeved at one end of the second rotating shaft 17, the top ends of the first concave plate pull rods 18 and the second concave plate pull rods 19 are hinged to the second rotating shaft 17, and the bottom ends of the first concave plate pull rods 18 and the second concave plate pull rods 19 are hinged to the threshing concave plate 3.

The beneficial effect of adopting the further technical scheme is that: aiming at the users who have requirements on the grass straws in the pasturing area, the straw loss is reduced and the harvesting adaptability of various crops is improved under the premise that the straw length discharged by the harvested crops is ensured by a straw grader type, namely the multi-purpose of one machine. The harvester makes the material enter the threshing system from the inlet of the threshing concave plate through the header system, the material passes through the gap between the threshing concave plate and the roller, the roller rotates and beats and kneads and threshes under the combined action of the threshing concave plate and the threshing concave plate, one part of the threshed material falls into the cleaning system through the threshing concave plate, the other part of the threshed material enters the separating mechanism along with the straw, when the threshed material enters the separating mechanism, the crop can do circular motion along with the roller, under the action of the straw-chasing wheel throwing plate, the material changes the motion direction and enters the straw-chasing device to separate the straw and the threshed material. When the harvester harvests different crops, the threshing gap before harvesting needs to be adjusted according to the specific harvested crops, so that the quality of the harvested crops, namely the qualified breakage rate and the grain loss rate, can be ensured, and the harvester is suitable for harvesting different crops. The problems of large harvesting loss, low efficiency and single crop harvesting of the conventional straw grader type are solved. In order to achieve better adaptability of harvested crops, the front and back gaps of the threshing concave plate can be synchronously adjusted. The threshing concave is fixedly arranged on the threshing machine body through an upper rotating shaft mounting seat by bolts.

As shown in fig. 1 to 12, further, the gap adjustment mechanism 12 further includes: spacing cardboard 20, pinion rack 21, pinion rack limiting plate 22, pinion rack mount pad 23, spacing cardboard 20 is flexible to be installed adjustment handle 13's middle part, pinion rack 21 is installed on pinion rack mount pad 23, pinion rack limiting plate 22 is installed adjustment handle 13's middle part, pinion rack 21 is located pinion rack limiting plate 22 with between adjustment handle 13, it is a pair of the top of first concave plate pull rod 18 and a pair of the top of second concave plate pull rod 19 all through adjusting screw 24 with second pivot 17 is articulated.

The beneficial effect of adopting the further technical scheme is that: when the harvester harvests different crops, the threshing gap before harvesting needs to be adjusted according to the specific harvested crops, so that the quality of the harvested crops, namely the qualified breakage rate and the grain loss rate, can be ensured, and the harvester is suitable for harvesting different crops. The problems of large harvesting loss, low efficiency and single crop harvesting of the existing straw grader type are solved. In order to achieve better adaptability of harvested crops, the front gap and the rear gap of the threshing concave plate can be synchronously adjusted.

As shown in fig. 1 to 12, further, the straw-based wheel 4 is a cuboid structure, a power output belt pulley 25 is installed at one end of the straw-based wheel 4, the power output belt pulley 25 is connected with the tangential flow roller 2, a power input belt pulley 26 and a second bearing 28 are installed at the other end of the straw-based wheel 4, a straw-based wheel shaft 27 is installed in the middle of the straw-based wheel 4, the second bearing 28 is located between the power input belt pulley 26 and the straw-based wheel 4, the straw-based wheel shaft 27 is rotatably installed on the thresher body 1 through the second bearing 28, a polishing plate 29 is installed on an edge of the straw-based wheel 4, and the polishing plate 29 is an arc plate structure.

The beneficial effect of adopting the further technical scheme is that: the harvester enters the threshing system from the inlet of the threshing concave plate through the header system, the material passes through a gap between the threshing concave plate and the roller, is kneaded and threshed under the combined action of rotary beating and the threshing concave plate of the roller, one part of threshed material falls into the cleaning system through the threshing concave plate, the other part of threshed material enters the separating mechanism along with the straw, when the threshed material enters the separating mechanism, the crop can do circular motion along with the roller, under the action of the straw-chasing wheel throwing plate, the material changes the motion direction, and enters the straw-chasing device to separate the straw from the threshed material. Is a core component for guiding and throwing the threshed materials to a separating mechanism (a straw shaker). The straw-chasing wheel shaft is arranged on the threshing machine body through bearings at the left end and the right end.

As shown in fig. 1 to 12, further, the separation mechanism 5 includes: the threshing machine comprises a plurality of straw sorters 30, a front crankshaft 31, a rear crankshaft 32 and a power input wheel 33, wherein the front crankshaft 31 and the rear crankshaft 32 are both rotatably installed on the threshing machine body 1, the power input wheel 33 is installed on the front crankshaft 31, the bottoms of the front sides of the straw sorters 30 are installed on the front crankshaft 31, and the bottoms of the rear sides of the straw sorters 30 are installed on the rear crankshaft 32.

The beneficial effect of adopting the further technical scheme is that: the harvester enters the threshing system from the inlet of the threshing concave plate through the header system, the material passes through a gap between the threshing concave plate and the roller, is kneaded and threshed under the combined action of rotary beating and the threshing concave plate of the roller, one part of threshed material falls into the cleaning system through the threshing concave plate, the other part of threshed material enters the separating mechanism along with the straw, when the threshed material enters the separating mechanism, the crop can do circular motion along with the roller, under the action of the straw-chasing wheel throwing plate, the material changes the motion direction, and enters the straw-chasing device to separate the straw from the threshed material. The straw grader reciprocates up and down and back and forth under the action of the crankshaft to convey the straw backwards, so that the grains and chaff fall from the holes in the key surface of the straw grader and enter the screen surface of the cleaning system. The four manuscript-by-manuscript devices sequentially reciprocate up and down and back and forth along the circumference of the crankshaft. The straw shaker is connected with the crankshaft through a nylon bearing bush, the nylon bearing bush is divided into two halves, embraces the crankshaft and is in clearance fit with the crankshaft, and the nylon bearing bush seat is fixedly connected with the straw shaker through a bolt. The straw shaker is installed on the threshing machine body through bearings on the left side and the right side of a front crankshaft and a rear crankshaft.

As shown in fig. 1 to 12, further, the side wall of the front crankshaft 31 and the side wall of the rear crankshaft 32 are rotatably connected to the straw shaker 30 through nylon bearing bushes 34, third bearings 35 are mounted at both ends of the front crankshaft 31 and both ends of the rear crankshaft 32, a bearing mounting seat 36 is sleeved on an outer side wall of the third bearings 35, the bearing mounting seat 36 is mounted on the thresher body 1, and the straw shaker 30 includes: the key surface 38 is installed in the housing seam 37, the key surface 38 is of a stepped structure, the key surface 38 is provided with a plurality of protrusions 41 and a plurality of through holes 42, and the plurality of protrusions 41 and the plurality of through holes 42 are alternately arranged at intervals.

The beneficial effect of adopting the further technical scheme is that: the straw grader reciprocates up and down and back and forth under the action of the crankshaft to convey the straw backwards, so that the grains and chaffs fall from holes on the key surface of the straw grader and enter the screen surface of the cleaning system. The key surface is formed by combining continuous bulges and through holes, the bulges push the straw device, and the holes are used for leaking the threshed materials (grains and chaffs). The document-chasing devices do up-and-down and front-and-back reciprocating motion in turn along with the four document-chasing devices on the circumference of the crankshaft. The straw grader is connected with the crankshaft through a nylon bearing bush, the nylon bearing bush is divided into two halves, embraces the crankshaft and is in clearance fit with the crankshaft, and the nylon bearing bush seat is fixedly connected with the straw grader through a bolt. The straw shaker is installed on the threshing machine body through bearings on the left side and the right side of a front crankshaft and a rear crankshaft.

A lubricating oil pipe 43 is arranged at a position close to the power input wheel, and the lubricating oil pipe 43 can be connected with the nylon bearing bush 34.

Aiming at the users who have the demand on the grass straws in the pasturing area, the straw harvester type reduces the harvesting loss and improves the harvesting adaptability of various crops on the premise of ensuring the length of the straws discharged by the harvested crops, namely the multi-purpose of one machine.

The harvester leads the material to enter the threshing system from the inlet of the threshing concave plate through the header system, the material passes through the gap between the threshing concave plate and the roller, the roller rotates and beats and is kneaded and threshed under the combined action of the threshing concave plate and the threshing concave plate, one part of the threshed material falls into the cleaning system through the threshing concave plate, the other part of the threshed material enters the separating mechanism along with the straw, when the threshed material enters the separating system, the crop can do circular motion along with the roller, under the action of the straw throwing plate of the straw-by-straw wheel, the material changes the motion direction and enters the straw-by-straw separator to separate the straw and the threshed material, the straw-by-straw separator does reciprocating motion up and down and back and forth under the action of the crankshaft, the straw is conveyed backwards, the grains and chaffs fall from the through holes of the key surface of the straw-by-straw separator and enter the screen surface of the cleaning system, when the harvester harvests different crops, the gap adjustment before harvesting needs to be carried out according to the specific harvested crops, thus the quality (including qualified breaking rate and grain loss rate) of the crops can be ensured, and is suitable for harvesting different crops.

Too large clearance leads to unclean threshing of crops, thus leading to seed loss, and too small clearance leads to seed damage, thus reducing harvest quality, and for the harvester, it is vital to use reasonable threshing clearance.

The utility model discloses can effectual solution prior art pursue the manuscript ware model, the results loss is big, inefficiency, the single problem of results crop.

The separating mechanism consists of a tangential flow roller 2, a threshing concave 3, a straw-chasing wheel 4, a separating mechanism 5 and a threshing machine body 1, and the relative position relationship is shown in figure 2.

The tangential flow roller 2 consists of a left threaded rod 6, a right threaded rod 7, a breadth plate 8, a roller speed-changing wheel 10, a roller shaft 9 and a bearing (a first bearing 11), in order to ensure that threshing is full and feeding is smooth, a mode of alternately assembling the left threaded rod and the right threaded rod is adopted, in order to ensure that the types of the harvested crops are multiple, the threaded rods adopt an assembling mode, different threshing elements (for example, rice harvesting can be switched into spike teeth) can be replaced for harvesting different crops, the rotating speed of the roller shaft is designed to be infinitely variable, and the variable speed range is (400 plus 1100 r/min).

The threshing concave 3 is composed of an adjusting handle 13, a first rotating shaft 14, a pull rod 15, a rotating shaft sleeve 16, a second rotating shaft 17, a first concave pull rod 18, a second concave pull rod 19 and the threshing concave 3, and in order to enable the harvested crops to have better adaptability, the front gap and the rear gap of the threshing concave can be synchronously adjusted.

The straw-sorting wheel mechanism consists of a straw-sorting wheel 4, a power output belt wheel 25, a second bearing 28, a power input belt wheel 26, a straw-sorting wheel shaft 27 and a throwing plate 29, and is a core component for guiding and throwing the threshed materials to a separating device (straw-sorting device).

The separating mechanism is composed of 4 manuscript scanner 30, front and back crank shafts (front crank shaft 31 and back crank shaft 32), nylon bush 34, power input wheel 33, third bearing 35 and bearing mounting seat 36, etc., the manuscript scanner 30 is composed of shell body welding 37 and key surface 38, the key surface 38 is the core part of the manuscript scanner 30 and the technical protection point of the separating mechanism 5; the key surface 38 is formed by combining continuous bulges 41 and through holes 42, the bulges 41 play a role in pushing straws, and the through holes 42 are used for discharging materials (grains and chaffs).

Movement of the document collector 30: the document jogger 30 reciprocates up and down and back and forth sequentially along the four document joggers 30 on the circumference of the crankshaft (front crankshaft and rear crankshaft).

Connection relation between all relevant parts: the drum shaft and the straw-chasing wheel shaft are arranged on the threshing machine body 1 through bearings at the left end and the right end, the left side and the right side of the stone collecting groove 39 are assembled on the threshing machine body 1 through fixing bolts, and the threshing concave plate 4 is fixedly arranged on the threshing machine body 1 through an upper rotating shaft mounting seat by bolts; the straw shaker 30 is mounted on the thresher body 1 through bearings on the left and right sides of the front and rear crankshafts.

The document scanner 30 is connected with the crankshaft through a nylon bearing bush 34, and the nylon bearing bush 34 is divided into two halves to hold the crankshaft and is in clearance fit with the crankshaft. The nylon bush is provided with a nylon bush seat which is fixedly connected with the manuscript scanner 30 through a bolt.

Effectively solving the harvesting loss of the straw grader type and improving the harvesting efficiency; the adaptability of the harvester for harvesting various crops is improved, and the whole combined threshing and separating system, the structure for alternately assembling the left threaded rod and the right threaded rod of the roller, the concave plate gap adjusting mechanism and the combine harvester comprising the threshing and separating system are all in a protection range.

In addition, the utility model also provides a combine harvester, including above-mentioned arbitrary one threshing and separating system.

Adopt the utility model discloses technical scheme's beneficial effect is: the tangential flow roller with the left rasp rod and the right rasp rod assembled alternately ensures full threshing, smooth feeding, reduced seed loss, improved harvesting efficiency, good adaptability of harvested crops, simplified structure and reduced cost.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. A threshing and separating system, comprising: threshing machine body (1), left and right rasp bars are assembled alternately and cut flow cylinder (2), threshing concave (3), straw-chasing wheel (4) and separating mechanism (5) are installed, cut flow cylinder (2), threshing concave (3), straw-chasing wheel (4) and separating mechanism (5) are installed on threshing machine body (1), cut flow cylinder (2) is located above threshing concave (3), straw-chasing wheel (4) is respectively communicated with threshing concave (3) and separating mechanism (5) in process, straw-chasing wheel (4) is located above the rear side of cut flow cylinder (2), threshing concave (3) is communicated with separating mechanism (5) in rear of threshing concave (3) in process.

2. A threshing and separating system according to claim 1, characterised in that the tangential drum (2) comprises: a plurality of left rasp bars (6), a plurality of right rasp bar (7), a plurality of width of cloth dish (8), drum shaft (9) rotate to be installed threshing machine body (1) is last, drum shaft (9) are located threshing concave plate (3)'s top, and are a plurality of width of cloth dish (8) interval cover is in on drum shaft (9), and is a plurality of left side rasp bar (6) and a plurality of right side rasp bar (7) are all installed a plurality of on the outside border of width of cloth dish (8), be provided with left-handed thread on left side rasp bar (6), be provided with right-handed thread on right side rasp bar (7), and are a plurality of left side rasp bar (6) and a plurality of right side rasp bar (7) interval sets up in turn each other.

3. A threshing and separating system according to claim 2, characterized in that one end of the roller shaft (9) is sleeved with a roller speed-changing wheel (10), two ends of the roller shaft (9) are respectively sleeved with a first bearing (11), the roller speed-changing wheel (10) is located outside the first bearing (11), the roller speed-changing wheel (10) is connected with the straw-chasing wheel (4), the roller shaft (9) is rotatably mounted on the threshing machine body (1) through the first bearing (11), and the left rasp bar (6) and the right rasp bar (7) are both parallel to the roller shaft (9).

4. The threshing separation system according to claim 1, characterized in that there is a gap between the threshing concave (3) and the tangential flow cylinder (2), the threshing concave (3) is connected with a gap adjusting mechanism (12), the gap adjusting mechanism (12) is located above the tangential flow cylinder (2), a stone collecting groove (39) is arranged in front of the threshing concave (3), a blocking curtain (40) is arranged behind the straw-threshing wheel (4), and the stone collecting groove (39) and the blocking curtain (40) are both installed on the threshing machine body (1).

5. Threshing and separating system according to claim 4, characterized in that the gap-adjusting mechanism (12) comprises: adjusting handle (13), first pivot (14), pull rod (15), pivot cover (16), second pivot (17), a pair of first concave board pull rod (18) and a pair of second concave board pull rod (19), first pivot (14) and second pivot (17) are all installed on threshing machine body (1), threshing concave board (3) are installed on threshing machine body (1) through second pivot (17), the bottom of adjusting handle (13) with the one end of first pivot (14) is connected, the one end of pull rod (15) with first pivot (14) is connected, the other end of pull rod (15) with pivot cover (16) is connected, pivot cover (16) cover is established the one end of second pivot (17), a pair of the top of first concave board pull rod (18) and a pair of the top of second concave board pull rod (19) all with second pivot (17) are articulated, the bottom ends of the pair of first concave plate pull rods (18) and the bottom ends of the pair of second concave plate pull rods (19) are hinged with the threshing concave plate (3).

6. The threshing separation system according to claim 5, wherein the gap adjustment mechanism (12) further comprises: spacing cardboard (20), pinion rack (21), pinion rack limiting plate (22), pinion rack mount pad (23), flexible the installing in spacing cardboard (20) the middle part of adjustment handle (13), install pinion rack (21) on pinion rack mount pad (23), install pinion rack limiting plate (22) the middle part of adjustment handle (13), pinion rack (21) are located pinion rack limiting plate (22) with between adjustment handle (13), it is a pair of the top of first concave plate pull rod (18) and a pair of the top of second concave plate pull rod (19) all through adjusting screw (24) with second pivot (17) are articulated.

7. The threshing and separating system of claim 1, wherein the straw chopper wheel (4) is of a rectangular parallelepiped structure, a power output belt pulley (25) is installed at one end of the straw chopper wheel (4), the power output belt pulley (25) is connected with the tangential flow roller (2), a power input belt pulley (26) and a second bearing (28) are installed at the other end of the straw chopper wheel (4), a straw chopper wheel shaft (27) is installed in the middle of the straw chopper wheel (4), the second bearing (28) is located between the power input belt pulley (26) and the straw chopper wheel (4), the straw chopper wheel shaft (27) is rotatably installed on the threshing machine body (1) through the second bearing (28), a throwing plate (29) is installed on an edge of the straw chopper wheel (4), and the throwing plate (29) is of an arc plate structure.

8. A threshing and separating system according to claim 1, characterised in that the separating mechanism (5) comprises: the threshing machine comprises a plurality of straw grading devices (30), a front crankshaft (31), a rear crankshaft (32) and a power input wheel (33), wherein the front crankshaft (31) and the rear crankshaft (32) are rotatably installed on the threshing machine body (1), the power input wheel (33) is installed on the front crankshaft (31), the bottoms of the front sides of the straw grading devices (30) are installed on the front crankshaft (31), and the bottoms of the rear sides of the straw grading devices (30) are installed on the rear crankshaft (32).

9. The threshing and separating system of claim 8, wherein the side wall of the front crankshaft (31) and the side wall of the rear crankshaft (32) are rotatably connected with the straw shaker (30) through nylon bushings (34), third bearings (35) are mounted at both ends of the front crankshaft (31) and both ends of the rear crankshaft (32), a bearing mounting seat (36) is sleeved on the outer side wall of each third bearing (35), the bearing mounting seat (36) is mounted on the threshing machine body (1), and the straw shaker (30) comprises: the key surface (38) is installed in the shell welding portion (37), the key surface (38) is of a step structure, a plurality of protrusions (41) and a plurality of through holes (42) are formed in the key surface (38), and the protrusions (41) and the through holes (42) are alternately arranged at intervals.

10. A combine harvester comprising a threshing separation system as claimed in any one of claims 1 to 9.

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