CN107873261B - Screw stirring type spike tooth grain high-efficiency threshing cylinder - Google Patents
Screw stirring type spike tooth grain high-efficiency threshing cylinder Download PDFInfo
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- CN107873261B CN107873261B CN201711388681.3A CN201711388681A CN107873261B CN 107873261 B CN107873261 B CN 107873261B CN 201711388681 A CN201711388681 A CN 201711388681A CN 107873261 B CN107873261 B CN 107873261B
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- fixed
- transmission shaft
- lifting lug
- seat
- bevel gears
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/18—Threshing devices
- A01F12/22—Threshing cylinders with teeth
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/56—Driving mechanisms for the threshing parts
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
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Abstract
The invention discloses a spiral stirring type spike-tooth grain high-efficiency threshing cylinder which comprises a frame, a transmission mechanism and spike-tooth mechanisms, wherein the transmission mechanism is fixed in the middle of the frame, the spike-tooth mechanisms are uniformly distributed on the cylinder in 4 rows, two adjacent rows of spike-tooth mechanisms are alternately arranged, an inner gear ring is fixed on a gear ring seat, a first planetary gear is fixed on a first transmission shaft and meshed with the inner gear ring, a second planetary gear is fixed on a second transmission shaft and meshed with the inner gear ring, the first transmission shaft and the second transmission shaft are alternately distributed along the circumferential direction of the cylinder, a driven bevel gear driven by the first transmission shaft is opposite to a driven bevel gear driven by the second transmission shaft, a base is fixed on a round hole, a short shaft is fixed on the base through a ball bearing, threshing teeth are fixed at the rear end of the short shaft, and 3 spiral blades are uniformly distributed on the threshing teeth. The invention has the advantages of various spike tooth movement forms, high threshing efficiency, low damage rate, simple and reliable structure and good universality.
Description
Technical Field
The invention relates to an agricultural machinery threshing device, in particular to a screw stirring type spike-tooth grain high-efficiency threshing cylinder.
Background
Threshing is one of key procedures in the grain combined harvesting process, the threshing rate of grains has important influence on the procedures of subsequent straw separation, impurity Yu Qing selection, drying, storage and transportation and the like, and the threshing operation quality determines the grain harvesting quality and yield to a certain extent, so that the improvement of the threshing performance of the threshing device is an important way for realizing grain income increase.
At present, the spike teeth are one of the threshing components which are most commonly equipped in the domestic and foreign grain threshing devices, in order to improve the operation quality of the spike teeth threshing components, domestic and foreign researchers mainly study the structure, shape, material and arrangement form of the spike teeth on a roller, however, the movement form of the threshing spike teeth is also a key factor influencing the operation quality of the threshing components. The traditional threshing cylinder device mainly comprises an axial flow threshing cylinder device and a tangential flow combined threshing cylinder device, in the axial flow threshing cylinder device, spike teeth are generally spirally distributed and fixed at the rear part of a cylinder, and driven by the cylinder, the spike teeth repeatedly turn and hit the rubbed materials, so that on one hand, the separation of straws and seeds is accelerated, on the other hand, the further threshing of the materials difficult to threshing is realized, and the threshing rate is improved; in the tangential flow combined threshing cylinder device, a threshing cylinder provided with spike tooth parts is usually arranged behind a main threshing cylinder, materials are tangentially fed into the spike tooth threshing cylinder, the spike tooth parts accelerate the threshing and separating of the materials through tangential beating and throwing, and due to the limitation of the movement mode of the tangential flow cylinder, the action time of the spike teeth on the materials is limited. However, no matter in the axial-flow threshing cylinder device or the tangential-flow threshing cylinder device, the spike teeth are fixed on the threshing cylinder, single circular motion is completed under the drive of the cylinder, the spike teeth impact strength can be enhanced to a certain extent by improving the rotation speed of the cylinder, the grain threshing rate is improved, but the larger the impact strength is, the more the grains are damaged, and the damaged grains have important influence on later storage, transportation and processing.
In view of the technology and performance of the grain threshing device, a spiral stirring type spike-tooth grain high-efficiency threshing cylinder with low loss, high efficiency, good threshing performance, various movement forms and high reliability is urgently needed.
Disclosure of Invention
The invention aims to provide a screw stirring type spike-tooth grain high-efficiency threshing cylinder which has high threshing efficiency, high threshing rate, low damage rate, various movement forms and high reliability.
The invention comprises a frame, a transmission mechanism and spike tooth mechanisms, wherein the transmission mechanism is fixed in the middle of the frame, the spike tooth mechanisms are uniformly distributed on a roller in 4 rows, and two adjacent rows of spike tooth mechanisms are alternately arranged; the rack comprises an annular gear, a first supporting seat, a gear ring seat and a second supporting seat, wherein the gear ring seat is fixed on the first supporting seat, and the annular gear is fixed on the gear ring seat; the transmission mechanism comprises a bolt, a bearing with a seat, a first lifting lug, a roller, a second lifting lug, a first transmission shaft, a second transmission shaft, a first planetary gear, a second planetary gear, a drive bevel gear and a driven bevel gear, wherein the bearing with the seat is fixed on the first lifting lug through the bolt, the first lifting lug is arranged on a first supporting seat of a frame, the bearing with the seat is fixed on the second lifting lug through the bolt, the second lifting lug is arranged on a second supporting seat of the frame, the left end face of the roller is fixed on the first lifting lug, the right end face of the roller is fixed on the second lifting lug, a round hole is formed in the roller, the left end of the first transmission shaft is fixed on the first lifting lug through the bearing with the seat, the right end of the first transmission shaft is fixed on the second lifting lug through the bearing with the seat, the first planetary gear is fixed on the first transmission shaft, the first planetary gears are meshed with the inner gear ring, the left end of the second transmission shaft is fixed on the first lifting lug through a bearing with a seat, the right end of the second transmission shaft is fixed on the second lifting lug through a bearing with a seat, the second planetary gears are fixed on the second transmission shaft, the second planetary gears are meshed with the inner gear ring, the first transmission shaft and the second transmission shaft are distributed in a staggered manner along the circumferential direction of the roller, key slots are formed in the first transmission shaft, the driving bevel gears are fixed on the first transmission shaft, the bevel faces of the driving bevel gears face the first planetary gears, the driving bevel gears are fixed on the second transmission shaft, the bevel faces of the driving bevel gears face away from the second planetary gears, the driven bevel gears are meshed with the driving bevel gears, and the rotation directions of the driven bevel gears driven by the first transmission shaft and the driven bevel gears driven by the second transmission shaft are opposite; the pin tooth mechanism comprises a base, a ball bearing, a short shaft, a limiting ring, screws and threshing teeth, wherein the base is fixed on a round hole, the ball bearing is fixed on the inner side of the round ring of the base, the short shaft is fixed on the base through the ball bearing, the limiting ring plays a limiting role on the short shaft, the driven bevel gear is fixed at the front end of the short shaft, the threshing teeth are fixed at the rear end of the short shaft, spline grooves are formed in the short shaft, 3 spiral blades are uniformly distributed on the threshing teeth, and the screws play a limiting role on the threshing teeth.
The driving bevel gears are fixed on the first transmission shaft, the conical tooth surfaces of two adjacent driving bevel gears face the first planetary gears and face away from the first planetary gears respectively, the arrangement directions are opposite, the driven bevel gears are meshed with the driving bevel gears, the rotation directions of the adjacent driven bevel gears are opposite under the driving of the first transmission shaft, and the driving bevel gears are fixed on the second transmission shaft in the same arrangement mode.
The rotation speed ratio of the short shaft to the roller is 2-3.
The working principle and the process of the invention are as follows:
the spiral stirring type spike-tooth grain high-efficiency threshing cylinder is connected with power through the first lifting lug, the cylinder rotates, the first planet wheel and the second planet wheel are meshed with the inner gear ring fixed on the frame, therefore, the first planet wheel and the second planet wheel respectively drive the first transmission shaft and the second transmission to rotate when rotating around the gear ring, so that each shaft is driven to rotate by the driving bevel gear, the driving bevel gear drives the spike-tooth mechanism to rotate through the driven bevel gear, the threshing teeth realize the composite motion of rotating along the cylinder and rotating around the short shaft, the materials fed into the threshing cylinder are subjected to the double effects of forward beating and tangential stirring, the stress form of the materials is increased, and the rotation directions of the spike-tooth mechanism driven by the two shafts are opposite due to the opposite arrangement directions of the driving bevel gears on the first transmission shaft and the second transmission shaft, and the materials are stirred in the forward and reverse directions, so that better turning and kneading effects can be formed.
The invention has the beneficial effects that:
the screw stirring type spike-tooth grain high-efficiency threshing cylinder optimizes the movement form of threshing spike teeth by utilizing gear transmission, realizes the compound movement of rotation and autorotation along the cylinder, enriches threshing action forms, increases the contact area of threshing parts by screw blades on the spike teeth, and has the action times on materials, thereby effectively improving the grain threshing efficiency and simultaneously improving threshing rate.
Drawings
FIG. 1 is a schematic diagram of an axial structure according to an embodiment of the present invention.
FIG. 2 is a rear view of an embodiment of the invention with the drum and portions of the spike-tooth mechanism removed.
Fig. 3 is an enlarged partial cross-sectional view at a in fig. 2.
Wherein: 1-a frame; 2-a transmission mechanism; 3-a spike tooth mechanism; 4-an inner gear ring; 5-a bolt; 6-a bearing with a seat; 7-a first lifting lug; 8-a first supporting seat; 9-a gear ring seat; 10-a roller; 11-a round hole; 12-keyway; 13-a second lifting lug; 14-a second support base; 15-a first transmission shaft; 16-a second drive shaft; 17-a first planetary gear; 18-a second planetary gear; 19-drive bevel gear; 20-a passive bevel gear; 21-a base; 21-1-a ring; 22-ball bearings; 23-short axis; 23-1-spline grooves; 24-limiting rings; 25-a screw; 26, threshing teeth; 26-1-helical blade.
Detailed Description
Referring to fig. 1, 2 and 3, the embodiment includes a frame 1, a transmission mechanism 2 and a spike tooth mechanism 3, wherein the transmission mechanism 2 is fixed in the middle of the frame 1, the spike tooth mechanism 3 is uniformly distributed on a roller 10 in 4 rows, and two adjacent rows of spike tooth mechanisms 3 are alternately arranged; the rack 1 comprises an annular gear 4, a first supporting seat 8, an annular gear seat 9 and a second supporting seat 14, wherein the annular gear seat 9 is fixed on the first supporting seat 8, and the annular gear 4 is fixed on the annular gear seat 9; the transmission mechanism 2 comprises a bolt 5, a first lifting lug 7, a roller 10, a second lifting lug 13, a first transmission shaft 15, a second transmission shaft 16, a first planetary gear 17, a second planetary gear 18, a drive bevel gear 19 and a driven bevel gear 20, wherein the first lifting lug 7 is fixed on the first lifting lug 7 through the bolt 5, the first lifting lug 7 is arranged on a first supporting seat 8 of the frame 1, the second lifting lug 13 is fixed on the second lifting lug 13 through the bolt 5, the second lifting lug 13 is arranged on a second supporting seat 14 of the frame 1, the left end face of the roller 10 is fixed on the first lifting lug 7, the right end face of the roller 10 is fixed on the second lifting lug 13, a round hole 11 is formed in the roller 10, the left end of the first transmission shaft 15 is fixed on the first lifting lug 7 through the bearing 6, the right end of the first transmission shaft 15 is fixed on the second lifting lug 13 through the bearing 6, the first planetary gear 17 is fixed on the first transmission shaft 15, the first planetary gear 17 is meshed with the inner gear ring 4, the left end of the second transmission shaft 16 is fixed on the first lifting lug 7 through the bearing 6 with a seat, the right end of the second transmission shaft 16 is fixed on the second lifting lug 13 through the bearing 6 with a seat, the second planetary gear 18 is fixed on the second transmission shaft 16, the second planetary gear 18 is meshed with the inner gear ring 4, the first transmission shaft 15 and the second transmission shaft 16 are distributed in a staggered way along the circumferential direction of the roller 10, key slots 12 are formed, the drive bevel gear 19 is fixed on the first transmission shaft 15, the bevel face of the drive bevel gear 19 faces the first planetary gear 17, the drive bevel gear 19 is fixed on the second transmission shaft 16, the bevel face of the drive bevel gear 19 faces away from the second planetary gear 18, the driven bevel gear 20 is meshed with the drive bevel gear 19, the rotation direction of the driven bevel gear 20 driven by the first transmission shaft 15 is opposite to that of the driven bevel gear 20 driven by the second transmission shaft 16; the spike tooth mechanism 3 comprises a base 21, a ball bearing 22, a short shaft 23, a limiting ring 24, screws 25 and threshing teeth 26, wherein the base 21 is fixed on a round hole 11, the ball bearing 22 is fixed on the inner side of a circular ring 21-1 of the base 21, the short shaft 23 is fixed on the base 21 through the ball bearing 22, the limiting ring 24 limits the short shaft 23, a driven bevel gear 20 is fixed on the front end of the short shaft 23, the threshing teeth 26 are fixed on the rear end of the short shaft 23, spline grooves 23-1 are formed in the short shaft 23, 3 helical blades 26-1 are uniformly distributed on the threshing teeth 26, and the screws 25 limit the threshing teeth 26.
The drive bevel gears 19 are fixed on the first transmission shaft 15, the conical tooth surfaces of two adjacent drive bevel gears 19 face the first planetary gear 17 and face away from the first planetary gear 17 respectively, the arrangement directions are opposite, the driven bevel gears 20 are meshed with the drive bevel gears 19, the adjacent driven bevel gears 20 are opposite in rotation direction under the driving of the first transmission shaft 15, and the drive bevel gears 19 are fixed on the second transmission shaft 16 in the same arrangement mode.
The rotation speed ratio of the short shaft 23 to the roller 10 is 2-3.
Claims (3)
1. A spiral stirring type grain high-efficiency threshing cylinder is characterized in that: comprises a frame (1), a transmission mechanism (2) and spike tooth mechanisms (3), wherein the transmission mechanism (2) is fixed in the middle of the frame (1), the spike tooth mechanisms (3) are uniformly distributed on a roller (10) in 4 rows, and two adjacent rows of spike tooth mechanisms (3) are alternately arranged; the rack (1) comprises an annular gear (4), a first supporting seat (8), a gear ring seat (9) and a second supporting seat (14), wherein the gear ring seat (9) is fixed on the first supporting seat (8), and the annular gear (4) is fixed on the gear ring seat (9); the transmission mechanism (2) comprises a bolt (5), a bearing (6) with a seat, a first lifting lug (7), a roller (10), a second lifting lug (13), a first transmission shaft (15), a second transmission shaft (16), a first planetary gear (17), a second planetary gear (18), a driving bevel gear (19) and a driven bevel gear (20), wherein the bearing (6) with the seat is fixed on the first lifting lug (7) through the bolt (5), the first lifting lug (7) is arranged on a first supporting seat (8) of the frame (1), the bearing (6) with the seat is fixed on a second lifting lug (13) through the bolt (5), the second lifting lug (13) is arranged on a second supporting seat (14) of the frame (1), the left end face of the roller (10) is fixed on the first lifting lug (7), the right end face of the roller (10) is fixed on the second lifting lug (13), a round hole (11) is formed in the roller (10), the left end of the first transmission shaft (15) is fixed on the first lifting lug (7) through the bearing (6) with the seat, the right transmission shaft (15) is fixed on the first lifting lug (17) through the second planetary gear (17), the first planetary gears (17) are meshed with the inner gear ring (4), the left end of the second transmission shaft (16) is fixed on the first lifting lug (7) through a bearing with a seat (6), the right end of the second transmission shaft (16) is fixed on the second lifting lug (13) through the bearing with a seat (6), the second planetary gears (18) are fixed on the second transmission shaft (16), the second planetary gears (18) are meshed with the inner gear ring (4), the first transmission shaft (15) and the second transmission shaft (16) are distributed in a staggered mode along the circumferential direction of the roller (10), key grooves (12) are formed in the first transmission shaft (15), the bevel surfaces of the drive bevel gears (19) face the first planetary gears (17), the drive bevel gears (19) are fixed on the second transmission shaft (16), the bevel surfaces of the drive bevel gears (19) face away from the second planetary gears (18), the driven bevel gears (20) are meshed with the drive bevel gears (19), and the driven bevel gears (20) driven by the first transmission shaft (15) are driven by the driven bevel gears (20) in the opposite rotation direction to the driven bevel gears (20) of the second transmission shaft (16); the nail tooth mechanism (3) comprises a base (21), a ball bearing (22), a short shaft (23), a limiting ring (24), screws (25) and threshing teeth (26), wherein the base (21) is fixed on a round hole (11), the ball bearing (22) is fixed on the inner side of a circular ring (21-1) of the base (21), the short shaft (23) is fixed on the base (21) through the ball bearing (22), the limiting ring (24) limits the short shaft (23), a driven bevel gear (20) is fixed at the front end of the short shaft (23), the threshing teeth (26) are fixed at the rear end of the short shaft (23), spline grooves (23-1) are formed in the short shaft (23), 3 spiral blades (26-1) are uniformly distributed on the threshing teeth (26), and the screws (25) limit the threshing teeth (26).
2. The helical agitator type grain high-efficiency threshing cylinder device as claimed in claim 1, wherein: the driving bevel gears (19) are fixed on the first transmission shaft (15), the conical tooth surfaces of two adjacent driving bevel gears (19) face the first planetary gears (17) and face away from the first planetary gears (17) respectively, the arrangement directions are opposite, the driven bevel gears (20) are meshed with the driving bevel gears (19), the rotation directions of the adjacent driven bevel gears (20) are opposite under the driving of the first transmission shaft (15), and the driving bevel gears (19) are fixed on the second transmission shaft (16) in the same arrangement mode.
3. The helical agitator type grain high-efficiency threshing cylinder device as claimed in claim 1, wherein: the rotation speed ratio of the short shaft (23) to the roller (10) is 2-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711388681.3A CN107873261B (en) | 2017-12-21 | 2017-12-21 | Screw stirring type spike tooth grain high-efficiency threshing cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711388681.3A CN107873261B (en) | 2017-12-21 | 2017-12-21 | Screw stirring type spike tooth grain high-efficiency threshing cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN107873261A CN107873261A (en) | 2018-04-06 |
| CN107873261B true CN107873261B (en) | 2023-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711388681.3A Active CN107873261B (en) | 2017-12-21 | 2017-12-21 | Screw stirring type spike tooth grain high-efficiency threshing cylinder |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109105005A (en) * | 2018-09-07 | 2019-01-01 | 重庆重运矿山机械制造有限公司 | A kind of sheller unit of rice-wheat thresher |
| CN109792894B (en) * | 2019-03-28 | 2024-05-31 | 新疆农业大学 | Grain threshing mechanism |
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| DE102011114627A1 (en) * | 2011-09-30 | 2013-04-04 | Claas Selbstfahrende Erntemaschinen Gmbh | Combine harvester for threshing crop, has annular shift collar portion that is connected with sun wheel and planetary carrier of planetary gear structure at active position, and ring gear which is fixed with halt claw portion |
| CN103975706A (en) * | 2014-05-29 | 2014-08-13 | 湖南农业大学 | Breeding seed threshing machine used in oilseed rape fields |
| CN105940854A (en) * | 2016-05-03 | 2016-09-21 | 福建东联机车部件有限公司 | Motor auxiliary drive wheat harvester |
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2017
- 2017-12-21 CN CN201711388681.3A patent/CN107873261B/en active Active
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| CN2322371Y (en) * | 1997-11-27 | 1999-06-09 | 陈庄荣 | Conveying threshing device for combine harvester |
| DE102011114627A1 (en) * | 2011-09-30 | 2013-04-04 | Claas Selbstfahrende Erntemaschinen Gmbh | Combine harvester for threshing crop, has annular shift collar portion that is connected with sun wheel and planetary carrier of planetary gear structure at active position, and ring gear which is fixed with halt claw portion |
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| CN105940854A (en) * | 2016-05-03 | 2016-09-21 | 福建东联机车部件有限公司 | Motor auxiliary drive wheat harvester |
| CN106717593A (en) * | 2016-12-27 | 2017-05-31 | 江苏大学 | One kind cuts vertical stream installed threshing separator |
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