CN111436287A - Longitudinal axial flow grain combine harvester threshing cylinder - Google Patents
Longitudinal axial flow grain combine harvester threshing cylinder Download PDFInfo
- Publication number
- CN111436287A CN111436287A CN202010481944.0A CN202010481944A CN111436287A CN 111436287 A CN111436287 A CN 111436287A CN 202010481944 A CN202010481944 A CN 202010481944A CN 111436287 A CN111436287 A CN 111436287A
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- Prior art keywords
- threshing
- cylinder
- spiral
- feeding
- welded
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007599 discharging Methods 0.000 claims abstract description 16
- 239000012535 impurity Substances 0.000 claims abstract description 16
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 230000003031 feeding effect Effects 0.000 abstract description 3
- 235000013339 cereals Nutrition 0.000 description 8
- 230000006872 improvement Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 244000062793 Sorghum vulgare Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 235000019713 millet Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- 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
- A01D—HARVESTING; MOWING
- A01D41/00—Combines, i.e. harvesters or mowers combined with threshing devices
- A01D41/12—Details of combines
-
- 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
-
- 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
- A01F12/10—Feeders
-
- 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
Abstract
The invention relates to a threshing cylinder of a grain combine harvester, which comprises a spiral feeding head, a cylinder body of the threshing cylinder and a spiral impurity removing tail; the spiral feeding head comprises a feeding spiral blade, a feeding spiral blade supporting plate and a conical barrel; the threshing cylinder body comprises a cylinder shaft, a breadth disc, a cylinder frame, threshing spike teeth and a rubber cap; the spiral impurity removing tail comprises a discharging spiral blade, a discharging spiral blade support plate and a circular cylinder; the spiral feeding head is welded on the left side of the cylinder body of the threshing cylinder, the spiral impurity removing tail is welded on the right side of the cylinder body of the threshing cylinder, and the spiral feeding head, the spiral impurity removing tail and the threshing cylinder are coaxial. The feeding device of the invention has the advantages of firmness, good feeding effect, low threshing resistance, long time and full threshing, improves threshing performance, reduces crushing rate and improves threshing efficiency.
Description
Technical Field
The invention belongs to the field of agricultural mechanical equipment, and particularly relates to a threshing cylinder of a grain combine harvester, which is used for threshing and separating grains.
Background
Most of feeding helical blades on the existing conical barrel are at two ends, and the feeding is uneven, so that crops are retained at the joint of a gap bridge and a threshing chamber, and the feeding effect is poor; the helical blade of the feeding part of the existing longitudinal axial flow threshing cylinder is directly welded with the conical cylinder of the matrix, and when the cylinder rotates at high speed or the feeding amount is large, the feeding helical blade is stressed greatly and is easy to break, and the working efficiency is influenced by the shutdown maintenance.
Like the products of famous enterprises such as the hobbyhorse, the long-term field of guarantor, threshing cylinder mostly is horizontal installation, and the crop only relies on the inside deflector of top cap to produce axial motion in the threshing cylinder, and the crop passes through time in the threshing cylinder and depends on density degree, the angle of opening and shutting and cylinder rotational speed of deflector. The installation mode ensures that the moving speed of the crops in the threshing chamber is higher, and the threshing rate is restricted.
The existing threshing spike teeth and the roller frame are connected in a welding mode, so that the threshing spike teeth are inconvenient to maintain after being damaged; the single-form threshing spike teeth are convenient to process and install, but the problems of low threshing rate and high crushing rate are caused generally; although the rubber caps are additionally arranged on the threshing spike teeth in CN204721882U, the threshing spike teeth are fixedly arranged and are inconvenient to adjust.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a threshing cylinder of a longitudinal axial flow grain combine harvester, which improves the working efficiency by improving the feeding efficiency, improving the moving speed of crops in a threshing chamber and reducing the crushing rate.
The technical scheme adopted by the invention is as follows: a threshing cylinder of a grain combine harvester comprises a spiral feeding head, a cylinder body of the threshing cylinder and a spiral impurity discharging tail; the spiral feeding head comprises a feeding spiral blade, a feeding spiral blade supporting plate and a conical barrel; the threshing cylinder body comprises a cylinder shaft, a breadth disc, a cylinder frame, threshing spike teeth and a rubber cap; the spiral impurity removing tail comprises a discharging spiral blade, a discharging spiral blade support plate and a circular cylinder; the spiral feeding head is welded on the left side of the cylinder body of the threshing cylinder, the spiral impurity removing tail is welded on the right side of the cylinder body of the threshing cylinder, and the spiral feeding head, the spiral impurity removing tail and the threshing cylinder are coaxial.
As an improvement, the feeding helical blade is welded on the conical barrel, and a feeding helical blade support plate is welded between the feeding helical blade and the conical barrel for reinforcing. Because the feeding helical blade produces strong dragging impact on the material, the crop has axial movement and circumferential movement at the blade end, and the feeding helical blade is prevented from being broken by large stress when rotating at high speed or feeding in large quantity. The feeding helical blades on the conical barrel are not too much or too little, if the feeding helical blades are too much, a closed environment is easily formed between the feeding helical blades and the conical barrel under the condition that the roller rotates at a high speed, and the blockage phenomenon is easily generated; if the number of the feeding helical blades is too small, uneven feeding is easily caused. The existing feeding helical blade is mostly 2 heads, so that the improved helical feeding blade is 3 heads, and 3 feeding helical blades and a plurality of feeding helical blade support plates are uniformly distributed on the conical barrel.
As an improvement, the drum shaft is connected with a breadth disc through a bolt, and the breadth disc is connected with a drum frame through a bolt; the diameter of the breadth plate is continuously increased along the movement direction of the crops in the threshing chamber, and the cylinder body of the threshing cylinder is in a round table shape so as to comb and brush thin crops; the roller frames are arranged in a spiral line along the axial direction of the roller shaft, and the direction of the spiral line is opposite to the rotation direction of the threshing roller, so that the threshing resistance is reduced, and the threshing rate is improved. Threshing cylinder slope installation, the crop still can produce axial motion when open threshing cylinder does the circular motion, causes the crop to remove to the threshing cylinder afterbody, and this mode still can reduce the speed of crop backward movement for threshing spike tooth fully hits the impact to the millet ear, increases threshing time, threshes more fully, improves threshing performance.
As an improvement, the threshing spike teeth are connected to the roller frame through nuts, and compared with the welding mode, the threshing spike teeth are easy to replace and adapt to different working requirements; along the movement direction of the crops in the threshing chamber, the length of the threshing spike teeth is continuously reduced so as to adapt to the continuously increased diameter of the threshing cylinder and reduce the winding of straws and grass.
In order to solve the problems of low threshing performance and high breakage rate, according to the stress analysis when the spike teeth and the ears of rice act, the shape and the size of the spike teeth are improved, the threshing spike teeth on the first third section of the roller frame are provided with rubber caps, the contact area of the threshing element and crops is increased, and the threshing performance can be greatly improved. The elastic threshing function of the rubber cap is soft, the direct impact effect of the spike teeth on the grain ears is reduced, the seed crushing rate is reduced, and the threshing efficiency can be improved. Although CN204721882U also fixes the rubber cap, but the installation and the dismantlement are inconvenient, and this modified rubber cap and threshing nail tooth are interference fit connection, easy to assemble and dismantle, can adjust the quantity of installation rubber cap according to work condition such as different feeding volumes.
As an improvement, the discharge helical blade is welded on the circular cylinder, a discharge helical blade support plate is welded between the discharge helical blade and the conical cylinder for reinforcing, and the 3-head discharge helical blade and the plurality of discharge helical blade support plates are uniformly distributed on the circular cylinder.
The invention has the beneficial effects that: 3 feeding helical blades and a plurality of feeding helical blade support plates are uniformly distributed on the conical barrel, so that the feeding effect is good; when the roller rotates at a high speed or the feeding amount is large, the feeding helical blade is stressed uniformly, firm and durable and cannot be broken; the roller frames are arranged in a spiral line along the axial direction of the roller shaft, so that the threshing resistance is reduced; the threshing cylinder is obliquely arranged, so that the threshing time is increased, the threshing is more sufficient, and the threshing rate is improved; after the threshing nail teeth are provided with the rubber caps, the threshing nail teeth are easy to adjust, maintain and replace, the threshing rate is improved, and the crushing rate is reduced; the crops are not easy to accumulate and block in the threshing chamber, and the threshing efficiency is improved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a left side view of the present invention.
Fig. 3 is a right side view of the present invention.
FIG. 4 is a partially enlarged view of the screw feeder head of the present invention.
FIG. 5 is a schematic view of the rotational orientation of the roller frame of the present invention.
FIG. 6 is an enlarged view of a portion of the helical trash removal tail of the present invention.
Fig. 7 is a schematic view of the threshing spike tooth structure of the present invention.
Fig. 8 is a schematic diagram of the structure of the threshing spike teeth provided with the rubber caps.
Fig. 9 is a schematic view of the rubber cap of the present invention.
FIG. 10 is a front view and a cross-sectional view of the rubber cap of the present invention.
In the drawings, the reference numerals denote the following components: 11. a feeding helical blade 12, a feeding helical blade support plate 13, a conical barrel 21, a roller shaft 22, a breadth disc 23, a roller frame 24, a threshing spike tooth 25, a rubber cap 31, a discharging helical blade 32, a discharging helical blade support plate 33 and a round barrel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in figures 1, 2 and 3, a threshing cylinder of a longitudinal axial flow grain combine harvester comprises a spiral feeding head (1), a threshing cylinder body (2) and a spiral impurity removing tail (3); the spiral feeding head (1) comprises a feeding spiral blade (11), a feeding spiral blade support plate (12) and a conical barrel (13); the threshing cylinder body (2) comprises a cylinder shaft (21), a breadth disc (22), a cylinder frame (23), threshing spike teeth (24) and a rubber cap (25); the spiral impurity removing tail (3) comprises a discharging spiral blade (31), a discharging spiral blade support plate (32) and a circular cylinder (33); the spiral feeding head (1) is welded on the left side of the cylinder body (2) of the threshing cylinder, the spiral impurity removing tail (3) is welded on the right side of the cylinder body (2) of the threshing cylinder, and the three parts have the same axle center. The working principle is that the crops conveyed by the gap bridge are smoothly fed into the cylinder body (2) of the threshing cylinder by the spiral feeding head (1) for threshing, grain particles and impurities in the threshed objects enter the cleaning system, and the straws and weeds are discharged by the spiral impurity discharge tail (3).
As shown in fig. 4, the feeding helical blade (11) is welded on the conical cylinder (13), and a feeding helical blade support plate (12) is welded between the feeding helical blade (11) and the conical cylinder (13) for reinforcing, the feeding helical blade support plate (12) is welded between the feeding helical blade (11) and the conical cylinder (13), the feeding helical blade (11) with 3 ends and a plurality of feeding helical blade support plates (12) are uniformly distributed on the conical cylinder (13), the initial height of the feeding helical blade (11) is not zero, crops are forcibly fed under the rotating action of the helical feeding blade (11) at the front end of the threshing cylinder, the helical feeding blade (11) generates strong dragging impact on the crops, the movement speed of the crops at the blade is very fast, and the helical feeding helical blade (11) rapidly thins the crop layer and feeds the crop layer into the threshing cylinder.
As shown in fig. 5, 7, 8, 9 and 10, the roller shaft (21) is connected with the width disc (22) through a bolt, and the width disc (22) is connected with the roller frame (23) through a bolt; the diameter of the amplitude disc (22) is continuously increased along the movement direction of crops in the threshing chamber, and the cylinder body (2) of the threshing cylinder is in a circular truncated cone shape; the roller frames (23) are arranged in a spiral line along the axial direction of the roller shaft (21), and the direction of the spiral line is opposite to the rotation direction of the threshing roller; the threshing spike teeth (24) are connected to the roller frame (23) through nuts, and the length of the threshing spike teeth (24) is continuously reduced along the movement direction of crops in the threshing chamber so as to adapt to the diameter of the threshing roller which is continuously increased; the threshing spike teeth (24) on the first third section of the roller frame (23) are provided with rubber caps (25), and the number of the rubber caps (25) can be adjusted according to working conditions such as different feeding amounts.
As shown in fig. 6, the discharge helical blade (31) is welded on the circular cylinder (33), and a discharge helical blade support plate (32) is welded between the discharge helical blade (31) and the conical cylinder (33) for reinforcement, and the 3-head discharge helical blade (31) and a plurality of discharge helical blade support plates (32) are uniformly distributed on the circular cylinder (33).
The above description is only an embodiment of the present invention, and any modification, improvement, equivalent replacement, etc. made within the scope and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A longitudinal axial flow grain combine threshing cylinder is characterized in that: the threshing cylinder of the grain combine harvester comprises a spiral feeding head (1), a threshing cylinder body (2) and a spiral impurity removing tail (3); the spiral feeding head (1) comprises a feeding spiral blade (11), a feeding spiral blade support plate (12) and a conical barrel (13); the threshing cylinder body (2) comprises a cylinder shaft (21), a breadth disc (22), a cylinder frame (23), threshing spike teeth (24) and a rubber cap (25); the spiral impurity removing tail (3) comprises a discharging spiral blade (31), a discharging spiral blade support plate (32) and a circular cylinder (33); the spiral feeding head (1) is welded on the left side of the cylinder body (2) of the threshing cylinder, the spiral impurity removing tail (3) is welded on the right side of the cylinder body (2) of the threshing cylinder, and the three parts have the same axle center.
2. The longitudinal axial flow grain combine threshing cylinder of claim 1, wherein: the feeding spiral blade (11) is welded on the conical barrel (13), a feeding spiral blade support plate (12) is welded between the feeding spiral blade (11) and the conical barrel (13) for reinforcing, the 3 feeding spiral blades (11) and the feeding spiral blade support plates (12) are uniformly distributed on the conical barrel (13), and the starting height of the feeding spiral blade (11) is not zero.
3. The longitudinal axial flow grain combine threshing cylinder of claim 1, wherein: the drum shaft (21) is connected with a breadth disc (22) through a bolt, and the breadth disc (22) is connected with a drum frame (23) through a bolt; the diameter of the amplitude disc (22) is continuously increased along the movement direction of crops in the threshing chamber, and the cylinder body (2) of the threshing cylinder is in a circular truncated cone shape; the roller frames (23) are arranged in a spiral line along the axial direction of the roller shaft (21), and the direction of the spiral line is opposite to the rotation direction of the threshing roller; the threshing spike teeth (24) are connected to the roller frame (23) through nuts, and the length of the threshing spike teeth (24) is continuously reduced along the movement direction of crops in the threshing chamber so as to adapt to the diameter of the threshing roller which is continuously increased; the threshing spike teeth (24) on the first third section of the roller frame (23) are provided with rubber caps (25), and the number of the rubber caps (25) can be adjusted according to working conditions such as different feeding amounts.
4. The grain combine threshing cylinder of claim 1, wherein: the discharging helical blade (31) is welded on the circular cylinder (33), a discharging helical blade support plate (32) is welded between the discharging helical blade (31) and the conical cylinder (33) for reinforcing, and the 3-head discharging helical blade (31) and the plurality of discharging helical blade support plates (32) are uniformly distributed on the circular cylinder (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010481944.0A CN111436287A (en) | 2020-06-01 | 2020-06-01 | Longitudinal axial flow grain combine harvester threshing cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010481944.0A CN111436287A (en) | 2020-06-01 | 2020-06-01 | Longitudinal axial flow grain combine harvester threshing cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN111436287A true CN111436287A (en) | 2020-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010481944.0A Pending CN111436287A (en) | 2020-06-01 | 2020-06-01 | Longitudinal axial flow grain combine harvester threshing cylinder |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113875402A (en) * | 2021-09-16 | 2022-01-04 | 华南农业大学 | Rigid-flexible coupling threshing cylinder device and regenerated rice combine harvester |
| CN115280980A (en) * | 2022-08-24 | 2022-11-04 | 广东皓耘科技有限公司 | Threshing system with spiral spike tooth feeding device and harvester |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202095304U (en) * | 2011-04-28 | 2012-01-04 | 周春生 | Longitudinal open type spiral combination axial-flow threshing drum |
| CN204721882U (en) * | 2015-07-03 | 2015-10-28 | 鹤岗市田丰农机制造有限公司 | For the spike-tooth with elastic caoutchouc sheath of combine sheller unit |
| CN204741820U (en) * | 2015-06-18 | 2015-11-11 | 山东亚丰农业机械装备有限公司 | Cereal combine threshing cylinder |
| CN208095271U (en) * | 2018-03-28 | 2018-11-16 | 中国农业大学 | A kind of threshing cylinder using multi-layer combined spike-tooth |
| CN109041821A (en) * | 2018-10-25 | 2018-12-21 | 中国农业大学 | A kind of corn kernel harvester threshing spike-tooth |
| CN208300365U (en) * | 2018-06-20 | 2019-01-01 | 河南瑞创通用机械制造有限公司 | A kind of list longitudinal axial flow combined harvester threshing cylinder |
| CN110679299A (en) * | 2019-11-14 | 2020-01-14 | 华中农业大学 | Drum-shaped toothed bar threshing cylinder |
| CN111011009A (en) * | 2019-12-26 | 2020-04-17 | 徐州轩科农业机械有限公司 | Low-damage roller device for threshing and harvesting |
| CN212413898U (en) * | 2020-06-01 | 2021-01-29 | 济南大学 | Longitudinal axial flow grain combine harvester threshing cylinder |
-
2020
- 2020-06-01 CN CN202010481944.0A patent/CN111436287A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202095304U (en) * | 2011-04-28 | 2012-01-04 | 周春生 | Longitudinal open type spiral combination axial-flow threshing drum |
| CN204741820U (en) * | 2015-06-18 | 2015-11-11 | 山东亚丰农业机械装备有限公司 | Cereal combine threshing cylinder |
| CN204721882U (en) * | 2015-07-03 | 2015-10-28 | 鹤岗市田丰农机制造有限公司 | For the spike-tooth with elastic caoutchouc sheath of combine sheller unit |
| CN208095271U (en) * | 2018-03-28 | 2018-11-16 | 中国农业大学 | A kind of threshing cylinder using multi-layer combined spike-tooth |
| CN208300365U (en) * | 2018-06-20 | 2019-01-01 | 河南瑞创通用机械制造有限公司 | A kind of list longitudinal axial flow combined harvester threshing cylinder |
| CN109041821A (en) * | 2018-10-25 | 2018-12-21 | 中国农业大学 | A kind of corn kernel harvester threshing spike-tooth |
| CN110679299A (en) * | 2019-11-14 | 2020-01-14 | 华中农业大学 | Drum-shaped toothed bar threshing cylinder |
| CN111011009A (en) * | 2019-12-26 | 2020-04-17 | 徐州轩科农业机械有限公司 | Low-damage roller device for threshing and harvesting |
| CN212413898U (en) * | 2020-06-01 | 2021-01-29 | 济南大学 | Longitudinal axial flow grain combine harvester threshing cylinder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113875402A (en) * | 2021-09-16 | 2022-01-04 | 华南农业大学 | Rigid-flexible coupling threshing cylinder device and regenerated rice combine harvester |
| CN115280980A (en) * | 2022-08-24 | 2022-11-04 | 广东皓耘科技有限公司 | Threshing system with spiral spike tooth feeding device and harvester |
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