CN115250759B - Concave plate screening and blocking removing device of combine harvester, threshing cylinder assembly and threshing system - Google Patents
Concave plate screening and blocking removing device of combine harvester, threshing cylinder assembly and threshing system Download PDFInfo
- Publication number
- CN115250759B CN115250759B CN202211070502.2A CN202211070502A CN115250759B CN 115250759 B CN115250759 B CN 115250759B CN 202211070502 A CN202211070502 A CN 202211070502A CN 115250759 B CN115250759 B CN 115250759B
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- Prior art keywords
- threshing cylinder
- threshing
- steel wire
- spring steel
- concave plate
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- 230000000903 blocking effect Effects 0.000 title claims abstract description 39
- 238000012216 screening Methods 0.000 title claims description 9
- 229910000639 Spring steel Inorganic materials 0.000 claims abstract description 43
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 230000002457 bidirectional effect Effects 0.000 claims description 27
- 230000007704 transition Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract description 13
- 239000011148 porous material Substances 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 235000013339 cereals Nutrition 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000251169 Alopias vulpinus Species 0.000 description 1
- 240000006162 Chenopodium quinoa Species 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 244000062793 Sorghum vulgare Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000019713 millet Nutrition 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
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
- A01F12/184—Cleaning means
-
- 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
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Threshing Machine Elements (AREA)
Abstract
The invention discloses a concave plate screen blocking removing device, a threshing cylinder assembly and a threshing system of a combine harvester, wherein the concave plate screen blocking removing device rotates along with the threshing cylinder of the combine harvester; the concave plate screen blocking removing device comprises a spring steel wire and a reciprocating mechanism; the main body part of the spring steel wire extends along the radial direction of the threshing cylinder; the reciprocating mechanism enables the spring steel wire to reciprocate and translate along the axial direction of the threshing cylinder. According to the concave plate screen blocking removing device, the threshing cylinder assembly and the threshing system of the combine harvester, the concave plate screen blocking removing device is arranged on the separating cylinder, and the spring steel wire is driven to reciprocate and translate relative to the threshing cylinder through the reciprocating mechanism when the threshing cylinder rotates, so that the spring steel wire can do spiral line motion, after the threshing cylinder moves for a plurality of periods, the spring steel wire can traverse each sieve hole in the reciprocating motion stroke, so that the spring steel wire does not need to be densely distributed, and the threshing operation of materials cannot be influenced.
Description
Technical Field
The invention relates to the field of agricultural machinery, in particular to a concave plate screen blocking removing device, a threshing cylinder assembly and a threshing system of a combine harvester.
Background
In the working process of the threshing and cleaning system of the combine harvester, materials are easy to adhere to a concave plate screen of the threshing system after being rubbed, beating and the like, especially for materials with higher water content (for example, the water content of stems can generally reach about 60% when rape is harvested) or small grain crops such as rape, millet, quinoa and the like are harvested, the mesh spacing of the concave plate screen is smaller because of smaller grains, but crushed materials with high water content, such as straws and the like, are easy to adhere, when the finely crushed materials adhere to the surface of grid bars of the concave plate screen, if timely cleaning is not obtained, the spacing distance between grid bars of the concave plate screen is gradually reduced, the passing capacity of the concave plate grid is affected, the grain separation is difficult, and the harvest loss rate is high.
In production, materials adhered to the concave plate sieve are usually manually cleaned, but because the concave plate sieve is intermittently stopped for cleaning, the cleaning of the adhered materials is labor-and labor-consuming, especially for threshing systems in which the concave plate sieve is not easy to open. On the one hand, the service efficiency of the machine tool is affected, and on the other hand, the separation capability of the concave plate screen is reduced. In the prior art, there are the schemes of cleaning the concave plate screen through setting up the clear stifled component in concave plate screen fixed position, perhaps set up the scheme of the clear stifled component that acts on concave plate screen on threshing cylinder, and in these schemes, the clear stifled component's of scope of action is limited, in order to make the screen surface of concave plate screen all obtain effective clearance, must increase the overall arrangement density of clear stifled component, and the too many clear stifled components of installation can influence the flow of material in thresher, influences threshing operation.
Therefore, the threshing system needs to be improved aiming at the defects and the defects of the prior art, and the threshing system is small in occupied space, capable of removing all adhered materials in the area of the concave plate screen, improving the separation capacity of the concave plate screen, especially for small grain materials and small concave plate grid intervals, and remarkably reducing threshing loss.
Disclosure of Invention
The invention aims to: in order to overcome the defects in the prior art, the invention provides the concave plate sieve blocking removing device, the threshing cylinder assembly and the threshing system of the combine harvester, which have small occupied space and strong blocking removing capability and can remove adhered materials in all areas of the concave plate sieve.
The technical scheme is as follows: in order to achieve the above object, the concave screen blocking-removing device of the combine harvester of the invention rotates along with the threshing cylinder of the combine harvester; the concave plate screen blocking removing device comprises a spring steel wire and a reciprocating mechanism; the main body part of the spring steel wire extends along the radial direction of the threshing cylinder; the reciprocating mechanism enables the spring steel wire to reciprocate and translate along the axial direction of the threshing cylinder.
Further, the reciprocating mechanism comprises a bidirectional screw shaft, a reversing sleeve, a reversing block and a limiting guide piece;
the bidirectional screw shaft is provided with a guide groove, the guide groove comprises a forward screw groove and a reverse screw groove, and two ends of the forward screw groove are respectively communicated with two ends of the reverse screw groove through a transition chute;
the reversing sleeve is sleeved on the bidirectional screw shaft in a sliding manner; the reversing block is arranged in the reversing sleeve and can rotate in the reversing sleeve, and the end part of the reversing block is always placed in the guide groove; at the two ends of the guide groove, the reversing block rotates relative to the reversing sleeve, and the end part of the reversing block moves along the transition sliding groove to switch between the two spiral grooves;
the spring steel wire is arranged on the reversing sleeve, and the limiting guide piece enables the spring steel wire to move along a straight line relative to the threshing cylinder.
Further, the spring steel wire is connected with the reversing sleeve through a connecting rod; the limiting guide piece is provided with a guide groove extending along the axial direction of the threshing cylinder, and the connecting rod is arranged in the guide groove.
Further, the tail end of the spring steel wire is provided with a U-shaped part, and the U-shaped part is fixed on the connecting rod by a screw.
Further, the reversing sleeve is provided with a transverse through hole for the bidirectional screw shaft to pass through and a vertical hole for the reversing block to be placed in; and two ends of the transverse through hole are respectively provided with a sliding sleeve and a clamping spring for limiting the sliding sleeve.
Further, the end of the reversing block is provided with a circular arc-shaped notch.
A threshing cylinder assembly comprising a threshing cylinder comprising a rotating shaft and a plurality of threshing tooth bars arranged in a circumferential array around the rotating shaft; a plurality of radial plates are arranged on the rotating shaft in a dispersing way in the axial direction; the concave plate screen blocking removing device is arranged on the threshing cylinder;
the bidirectional screw shaft is rotatably installed relative to the webs, and the limiting guide piece is fixed between the adjacent webs;
and a driving mechanism for driving the bidirectional screw shaft to rotate is also arranged on the threshing cylinder.
Further, the driving mechanism comprises a central gear sleeved on the rotating shaft and a screw shaft driving gear fixed on the bidirectional screw shaft;
the sun gear is fixedly arranged relative to the frame of the combine harvester;
the screw shaft driving gear is engaged with the sun gear.
Further, a plurality of groups of concave plate screen blocking removing devices are distributed on the circumferential direction of the threshing cylinder, and all groups of concave plate screen blocking removing devices are distributed in a circumferential array.
The threshing system comprises the threshing cylinder assembly and a concave plate sieve; the threshing cylinder component is arranged in the concave plate sieve; when the spring steel wire is fully unfolded, the end part of the spring steel wire can pass through the sieve holes on the concave plate sieve and extend out of the sieve holes.
The beneficial effects are that: according to the concave plate screen blocking removing device, the threshing cylinder assembly and the threshing system of the combine harvester, the concave plate screen blocking removing device is arranged on the separating cylinder, and the spring steel wire is driven to reciprocate and translate relative to the threshing cylinder through the reciprocating mechanism when the threshing cylinder rotates, so that the spring steel wire can do spiral line motion, after the threshing cylinder moves for a plurality of periods, the spring steel wire can traverse each sieve hole in the reciprocating motion stroke, so that the spring steel wire does not need to be densely distributed, and the threshing operation of materials cannot be influenced.
Drawings
FIG. 1 is a perspective view of a threshing cylinder assembly;
FIG. 2 is a front view of a threshing cylinder assembly;
FIG. 3 is a block diagram of the threshing cylinder assembly with the threshing teeth bars hidden;
fig. 4 is a side view of the threshing cylinder assembly;
FIG. 5 is a block diagram of a threshing system;
FIG. 6 is an enlarged view of the portion A of FIG. 5;
FIG. 7 is a block diagram of a concave screen block-out removal device;
FIG. 8 is a combined block diagram of a reversing sleeve and spring steel wire;
fig. 9 is an internal structural view of the reversing sleeve;
fig. 10 is a block diagram of the commutation block.
In the figure: a-threshing cylinder component; 1-threshing cylinder; 11-a rotating shaft; 12-threshing tooth bars; 13-a web; 2-a concave plate screen blocking removing device; 21-spring steel wire; 21 a-U-shaped portion; 22-a bidirectional screw shaft; 22 a-positive going helical groove; 22 b-reverse helical groove; 23-reversing sleeve; 23 a-a transverse through hole; 23 b-vertical holes; 24-reversing blocks; 24 a-notch; 25-limit guides; 26-connecting rod; 27-sliding sleeve; 28-snap springs; 29-bearing seat; 3-a driving mechanism; 31-sun gear; 32-screw shaft drive gear; 4-concave screen.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
The concave plate screening and blocking removing device 2 is arranged on a threshing cylinder 1 of a combine harvester and rotates along with the threshing cylinder 1 of the combine harvester; 1-2 show a threshing cylinder assembly A consisting of a threshing cylinder 1 and a concave plate screening and blocking removing device 2, wherein the threshing cylinder 1 comprises a rotating shaft 11 and a plurality of threshing tooth bars 12 which are arrayed circumferentially around the rotating shaft 11; a plurality of webs 13 are arranged in a scattered manner in the axial direction of the rotating shaft 11, and threshing tooth bars 12 are fixedly connected with the edges of each web 13.
The concave plate screen blocking removing device 2 comprises a spring steel wire 21 and a reciprocating mechanism; the main body of the spring wire 21 extends along the radial direction of the threshing cylinder 1; the reciprocating mechanism makes the spring wire 21 reciprocate in the axial direction of the threshing cylinder 1.
As shown in fig. 5, the threshing system of the combine harvester comprises the threshing cylinder assembly A and a concave plate screen 4; the threshing cylinder component is arranged in the concave screen 4; when the spring wire 21 is fully extended, its ends can pass through the openings in the concave screen 4 and extend beyond the openings (as shown in fig. 6).
In the above structure, when the threshing cylinder 1 rotates, the reciprocating mechanism makes the spring steel wire 21 reciprocate in the direction parallel to the axial direction of the threshing cylinder 1, the composite action of the two makes the spring steel wire 21 do spiral line motion, and the spring steel wire 21 moves along the forward spiral line and then returns along the reverse spiral line, thus the concave plate sieve 4 is cleaned, after the threshing cylinder 1 moves for a plurality of periods, the spring steel wire 21 can traverse each sieve hole on the concave plate sieve 4 in the reciprocating motion stroke, thus the spring steel wire 21 is not needed to be densely distributed, and the threshing operation of materials is not influenced.
The spring steel wire 21 is adopted for blocking removal, after the end part of the spring steel wire 21 has elasticity and completes blocking removal of one sieve pore, along with rotation of the threshing cylinder 1, the end part of the spring steel wire 21 is contacted with the edge of the sieve pore to be bent and deformed and store force in the process of moving out of the sieve pore, when the end part of the spring steel wire 21 is separated from the edge of the sieve pore, the end part of the spring steel wire 21 enters the other sieve pore, and at the moment, the spring steel wire 21 is rapidly straightened and releases accumulated energy, sundries in the sieve pore can be sprung away, and a good blocking removal effect can be achieved.
Specifically, as shown in fig. 7, the reciprocating mechanism includes a bidirectional screw shaft 22, a reversing sleeve 23, a reversing block 24, and a limit guide 25; the duplex screw shaft 22 is rotatably mounted with respect to the web 13. The bidirectional screw shaft 22 is provided with a guide groove, the guide groove comprises a forward screw groove 22a and a reverse screw groove 22b, and two ends of the forward screw groove 22a and two ends of the reverse screw groove 22b are respectively communicated through a transition chute; the reversing sleeve 23 is sleeved on the bidirectional screw shaft 22 in a sliding manner; the reversing block 24 is installed in the reversing sleeve 23 and can rotate in the reversing sleeve 23, the end part of the reversing block 24 is always placed in the guide groove, at the two ends of the guide groove, the reversing block 24 rotates relative to the reversing sleeve 23, and the end part of the reversing block 24 moves along the transition sliding groove to switch between two spiral grooves (namely, a forward spiral groove 22a and a reverse spiral groove 22 b); the spring wire 21 is mounted on the reversing sleeve 23, and the limit guide 25 enables the spring wire 21 to move in a straight line relative to the threshing cylinder 1.
The spring steel wire 21 is connected with the reversing sleeve 23 through a connecting rod 26; the limit guide 25 has a guide groove extending along the axial direction of the threshing cylinder 1, and the connecting rod 26 is placed in the guide groove. The limit guides 25 are fixed between adjacent webs 13.
With the above structure, when the bidirectional screw shaft 22 rotates in a fixed rotational direction, the end of the guide 25 moves along the guide groove, and the reversing sleeve 23 translates in a direction parallel to the axial direction of the threshing cylinder 1 and does not rotate relative to the threshing cylinder 1 under the restriction of the guide 25. The end of the guide 25 is reciprocally shifted between the forward spiral groove 22a and the reverse spiral groove 22b to effect reciprocal translational movement of the reversing sleeve 23, i.e., to effect reciprocal translational movement of the spring wire 21. As shown in fig. 8, the tail end of the spring wire 21 has a U-shaped portion 21a, and the U-shaped portion 21a is screwed to the link 26.
As shown in fig. 9, the reversing sleeve 23 has a transverse through hole 23a through which the bidirectional screw shaft 22 passes and a vertical hole 23b into which the reversing block 24 is inserted; a sliding sleeve 27 and a snap spring 28 for limiting the sliding sleeve 27 are respectively arranged at two ends of the transverse through hole 23 a. In this embodiment, the sliding sleeve 27 is a nylon sleeve, so that the reversing sleeve 23 can move smoothly relative to the bidirectional screw shaft 22, and abrasion is reduced.
As shown in fig. 10, the end of the reversing block 24 has a circular arc-shaped recess 24a. With this structure, the length of the portion of the reversing block 24 that is placed in the guide groove is long, and thus, the end of the reversing block 24 can smoothly pass through the crossing position between the forward spiral groove 22a and the reverse spiral groove 22b, without entering the wrong groove.
In order to drive the bidirectional screw shaft 22 to rotate relative to the web 13, a driving mechanism 3 is also mounted on the threshing cylinder 1. As shown in fig. 4, the driving mechanism 3 includes a sun gear 31 sleeved on the rotating shaft 11 and a screw shaft driving gear 32 fixed on the bidirectional screw shaft 22; the sun gear 31 is fixedly arranged relative to the frame of the combine harvester; the screw shaft driving gear 32 is engaged with the sun gear 31. With the above structure, since the central gear 31 is fixed relative to the frame, when the threshing cylinder 1 rotates relative to the frame to perform threshing operation, the screw shaft driving gear 32 rotates along with the threshing cylinder 1, and due to the meshing relationship between the central gear 31 and the screw shaft driving gear 32, the screw shaft driving gear 32 rotates relative to the threshing cylinder 1 and drives the bidirectional screw shaft 22 to rotate, so that the concave screen blocking removing device 2 can be driven to perform blocking removing operation.
Preferably, a plurality of groups of concave plate screening and blocking removing devices 2 are distributed on the circumferential direction of the threshing cylinder 1, and all groups of concave plate screening and blocking removing devices 2 are distributed in a circumferential array. Through the layout, the counter weight of the concave plate screen blocking removing device 2 on the threshing cylinder 1 is balanced, and the concave plate screen blocking removing device 2 does not influence the dynamic balance of the threshing cylinder 1.
Bearing seats 29 are respectively arranged on the two webs 13 positioned at the two ends of the rotating shaft 11, the bearing seats 29 on the two webs 13 at the two ends of the rotating shaft 11 respectively support the two ends of the bidirectional screw shaft 22, the bidirectional screw shaft 22 is divided into a plurality of sections by all webs 13, each section of the bidirectional screw shaft is provided with a complete guide groove, and a reversing sleeve 23, a reversing block 24 and a limiting guide piece 25 are correspondingly and respectively arranged in a matched manner. Thus, a blockage removing mechanism is arranged between every two adjacent webs 13.
The foregoing is only a preferred embodiment of the invention, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.
Claims (10)
1. The concave plate screening and blocking removing device of the combine harvester is characterized in that the device rotates together with a threshing cylinder (1) of the combine harvester; the concave plate screen blocking removing device comprises a spring steel wire (21) and a reciprocating mechanism; the main body part of the spring steel wire (21) extends along the radial direction of the threshing cylinder (1); the reciprocating mechanism enables the spring steel wire (21) to reciprocate and translate along the axial direction of the threshing cylinder (1);
when the spring steel wire (21) is fully unfolded, the end part of the spring steel wire can pass through the sieve holes on the concave plate sieve (4) and extend out of the sieve holes, the concave plate sieve blocking removing device is arranged in the threshing cylinder (1), and the threshing cylinder (1) comprises a rotating shaft (11) and a plurality of threshing toothed bars (12) which are arrayed around the circumference of the rotating shaft (11).
2. The concave screen blocking remover of combine harvester according to claim 1, characterized in that the reciprocating mechanism comprises a bidirectional screw shaft (22), a reversing sleeve (23), a reversing block (24) and a limit guide (25);
the bidirectional screw shaft (22) is provided with a guide groove, the guide groove comprises a forward screw groove (22 a) and a reverse screw groove (22 b), and two ends of the forward screw groove (22 a) are respectively communicated with two ends of the reverse screw groove (22 b) through transition sliding grooves;
the reversing sleeve (23) is sleeved on the bidirectional screw shaft (22) in a sliding manner; the reversing block (24) is arranged in the reversing sleeve (23) and can rotate in the reversing sleeve (23), and the end part of the reversing block (24) is always placed in the guide groove; at both ends of the guide groove, the reversing block (24) rotates relative to the reversing sleeve (23), and the end of the reversing block (24) moves along the transition chute to switch between two spiral grooves;
the spring steel wire (21) is arranged on the reversing sleeve (23), and the limiting guide piece (25) enables the spring steel wire (21) to move along a straight line relative to the threshing cylinder (1).
3. The concave screen blocking remover of combine harvester according to claim 2, characterized in that the spring steel wire (21) is connected with the reversing sleeve (23) through a connecting rod (26); the limit guide (25) is provided with a guide groove extending along the axial direction of the threshing cylinder (1), and the connecting rod (26) is arranged in the guide groove.
4. A concave screen blocking remover for combine harvester according to claim 3, characterized in that the tail end of the spring wire (21) has a U-shaped part (21 a), the U-shaped part (21 a) being screwed onto the connecting rod (26).
5. The concave screen blocking remover of combine harvester according to claim 2, characterized in that the reversing sleeve (23) has a transverse through hole (23 a) for the bidirectional screw shaft (22) to pass through and a vertical hole (23 b) for the reversing block (24) to be placed in; a sliding sleeve (27) and a snap spring (28) for limiting the sliding sleeve (27) are respectively arranged at two ends of the transverse through hole (23 a).
6. The concave screen blocking remover of combine harvester according to claim 2, characterized in that the end of the reversing block (24) has a circular arc shaped recess (24 a).
7. A threshing cylinder assembly comprising a threshing cylinder (1), the threshing cylinder (1) comprising a rotating shaft (11) and a plurality of threshing teeth bars (12) arranged in a circumferential array around the rotating shaft (11); a plurality of radial plates (13) are arranged in a scattered manner in the axial direction of the rotating shaft (11); characterized in that the threshing cylinder (1) is provided with a concave plate screen blockage removing device (2) as claimed in any one of claims 2-6;
the bidirectional screw shaft (22) is rotatably installed relative to the webs (13), and the limit guide (25) is fixed between the adjacent webs (13);
the threshing cylinder (1) is also provided with a driving mechanism (3) for driving the bidirectional screw shaft (22) to rotate.
8. Threshing cylinder assembly according to claim 7, characterized in that the drive mechanism (3) comprises a sun gear (31) that is sleeved on the rotating shaft (11) and a screw shaft drive gear (32) that is fixed on the bidirectional screw shaft (22);
the sun gear (31) is fixedly arranged relative to the frame of the combine harvester;
the screw shaft driving gear (32) is meshed with the sun gear (31).
9. Threshing cylinder assembly according to claim 7, characterized in that a plurality of groups of said concave screening and blocking devices (2) are arranged in the circumferential direction of the threshing cylinder (1), all groups of said concave screening and blocking devices (2) being arranged in a circumferential array.
10. Threshing system, characterized in that it comprises a threshing cylinder assembly according to any one of claims 7-9, further comprising a concave screen (4); the threshing cylinder component is arranged in the concave plate sieve (4); when the spring wire (21) is fully extended, its end can pass through the mesh opening of the concave screen (4) and extend beyond the mesh opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211070502.2A CN115250759B (en) | 2022-09-02 | 2022-09-02 | Concave plate screening and blocking removing device of combine harvester, threshing cylinder assembly and threshing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211070502.2A CN115250759B (en) | 2022-09-02 | 2022-09-02 | Concave plate screening and blocking removing device of combine harvester, threshing cylinder assembly and threshing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115250759A CN115250759A (en) | 2022-11-01 |
| CN115250759B true CN115250759B (en) | 2024-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211070502.2A Active CN115250759B (en) | 2022-09-02 | 2022-09-02 | Concave plate screening and blocking removing device of combine harvester, threshing cylinder assembly and threshing system |
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| CN (1) | CN115250759B (en) |
Families Citing this family (1)
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|---|---|---|---|---|
| CN116235708B (en) * | 2023-04-25 | 2023-07-18 | 佳木斯惠尔橡塑股份有限公司 | Threshing device for harvester |
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| CN206104312U (en) * | 2016-09-18 | 2017-04-19 | 天津富成源肥业有限公司 | Cylinder sieve |
| CN206527035U (en) * | 2017-02-06 | 2017-09-29 | 青海云天化国际化肥有限公司 | Sorting unit and production device for compound fertilizer |
| CN106937560A (en) * | 2017-04-21 | 2017-07-11 | 农业部南京农业机械化研究所 | A kind of thresing machine sheller unit |
| CN207340564U (en) * | 2017-08-17 | 2018-05-11 | 星光农机股份有限公司 | A kind of millet combined harvester sheller unit |
| CN210580053U (en) * | 2019-07-31 | 2020-05-22 | 河南科技大学 | Threshing device for combine harvester and having concave plate sieve adhesion removing function |
| CN110972725A (en) * | 2019-12-08 | 2020-04-10 | 山西农业大学 | Centrifugal thresher is used to coarse cereals crop |
| CN111742694A (en) * | 2020-07-27 | 2020-10-09 | 江西农业大学 | Anti-blocking device for concave plate sieve of combine harvester |
| CN113228945A (en) * | 2021-05-16 | 2021-08-10 | 郑州西格罗丁电子科技有限公司 | Quantitative mechanism of corn threshing device |
| CN215313899U (en) * | 2021-07-21 | 2021-12-28 | 天津宏润达机械制造有限公司 | Drum screen convenient to replace |
| CN216965260U (en) * | 2022-04-06 | 2022-07-15 | 江西卓冶环保科技有限公司 | Drum screen for mineral separation |
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