CN220965662U - Threshing mechanism suitable for soybean harvester - Google Patents
Threshing mechanism suitable for soybean harvester Download PDFInfo
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- CN220965662U CN220965662U CN202320084950.1U CN202320084950U CN220965662U CN 220965662 U CN220965662 U CN 220965662U CN 202320084950 U CN202320084950 U CN 202320084950U CN 220965662 U CN220965662 U CN 220965662U
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- 244000068988 Glycine max Species 0.000 title claims abstract description 52
- 235000010469 Glycine max Nutrition 0.000 title claims abstract description 42
- 230000007246 mechanism Effects 0.000 title claims abstract description 30
- 239000011148 porous material Substances 0.000 claims abstract description 3
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000012216 screening Methods 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 abstract description 4
- 230000003749 cleanliness Effects 0.000 abstract description 3
- 239000010902 straw Substances 0.000 description 13
- 241000196324 Embryophyta Species 0.000 description 6
- 239000004744 fabric Substances 0.000 description 6
- 238000003306 harvesting Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 241001391944 Commicarpus scandens Species 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 241001124569 Lycaenidae Species 0.000 description 2
- 244000046052 Phaseolus vulgaris Species 0.000 description 2
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Threshing Machine Elements (AREA)
Abstract
The utility model discloses a threshing mechanism suitable for a soybean harvester, which comprises a threshing cylinder and a threshing box, wherein the threshing box is wrapped outside the threshing cylinder, a concave plate screen is arranged inside the threshing box, and the threshing box surrounds below the threshing cylinder in an arc shape; the concave plate screen comprises concave plate dense screen and concave plate sparse screen which are connected together, and the pore diameter of the concave plate dense screen is smaller than that of the concave plate sparse screen; the concave plate dense screen is arranged on the screwing-in side of the threshing cylinder, and the concave plate sparse screen is arranged on the unscrewing side of the threshing cylinder. The threshing mechanism disclosed by the utility model has the advantages that the pin tooth distance is increased, the threshing striking frequency is reduced, meanwhile, the concave plate dense screen mesh is utilized to ensure the threshing striking effectiveness, the concave plate sparse screen mesh is utilized to ensure the smoothness of falling of seeds, the breakage rate of the seeds can be effectively reduced by combining all measures, the broken stems are reduced, the impurity content in the screening stage is reduced, and the threshing soybean cleanliness is higher.
Description
Technical Field
The utility model relates to the technical field of agricultural machinery, in particular to a threshing mechanism of a medium-sized soybean harvester.
Background
Soybean is an important grain crop, is widely planted at present, is suitable for mechanized harvesting, and a harvester is conventional equipment used in the soybean harvesting process. Most of the front ends of the harvesters are header assemblies, the rear parts of the header assemblies are connected with a straw conveying assembly, the rear parts of the straw conveying assembly are connected with a threshing assembly, the threshing assembly is connected with a winnowing assembly, all the parts of the structures are arranged on the frame and connected with a control system, and the control system is arranged at the front ends of the harvesters. The frame comprises a chassis frame and a travelling mechanism arranged on the chassis frame. The threshing assembly is internally provided with a threshing cylinder, the threshing cylinder can separate soybeans from plants, the threshing cylinder is provided with a spoke plate, a shaft tube and a threshing element, the threshing element consists of a toothed bar and a toothed nail, and the toothed bar and the toothed nail strike the soybean plants. After the soybean plants are harvested from the ground by the header assembly, the soybean plants enter the threshing assembly through the straw conveying assembly for threshing, and soybean seeds, soybean hulls and soybean straws are separated in the threshing assembly.
When the soybean harvester harvests soybeans, the whole soybeans are fed into the soybean harvester, and enter a threshing assembly in whole plants, as the whole soybeans which accord with mechanical harvesting are completely dried, the stems are tough but the joints among the stems are easy to break, the pods are crisp and fragile, the nails of the threshing elements which are common in the market are densely distributed, the threshing beating times are high, the traditional screen is matched with the traditional screen, and the traditional screen uses a mesh screen or a denser fine round steel fence type screen, so that the falling limit of seeds is high, the seeds are easy to break under the action of a threshing roller, the straw breaking rate is increased, the impurities in the soybeans are more during winnowing and screening after threshing, the separation part of the harvester is used for treating the load, and the integrity and the final separation effect of the seeds are influenced under the comprehensive action.
Disclosure of utility model
The utility model overcomes the defects of the prior art, and provides an implementation mode of a threshing mechanism suitable for a soybean harvester, so as to solve the problems of more impurities and poor integrity of seeds when the soybean harvester harvests soybeans.
In order to solve the technical problems, one embodiment of the present utility model adopts the following technical scheme:
A threshing mechanism suitable for a soybean harvester comprises a threshing cylinder and a threshing box, wherein the threshing box is wrapped on the outer side of the threshing cylinder, a concave plate screen is arranged in the threshing box, and the threshing box surrounds the lower part of the threshing cylinder in an arc shape; the concave plate screen comprises concave plate dense screen and concave plate sparse screen which are connected together, and the pore diameter of the concave plate dense screen is smaller than that of the concave plate sparse screen; the concave plate dense screen is arranged on the screwing-in side of the threshing cylinder, and the concave plate sparse screen is arranged on the unscrewing side of the threshing cylinder.
Further, the concave plate dense screen consists of a screen main body frame and mesh adjusting elements arranged on the screen main body frame, wherein the mesh adjusting elements are formed by vertically and crosswise arranging transverse pipes and grid plates; all the transverse pipes are parallel to each other and all the grid plates are parallel to each other.
Preferably, the mesh adjusting element of the concave plate dense screen is formed by vertically and alternately arranging a plurality of transverse pipes which are arranged at intervals of 8.0-8.5 degrees on the circular arc of the screen main body frame and a plurality of grid plates which are arranged at intervals of 55-57mm horizontally.
Preferably, the middle part of the horizontal pipe and the two ends of the horizontal pipe are inserted and fixed on the screen main body frame, semicircular grooves are uniformly formed in the grid plate, the two ends of the grid plate are fixed on the screen main body frame, and the horizontal pipe is meshed with the semicircular grooves on the grid plate and welded.
Further, the concave plate dredging screen consists of a screen main body frame and a mesh adjusting element arranged on the screen main body frame, wherein the mesh adjusting element is a plurality of transverse pipes, and all the transverse pipes are parallel to each other.
Preferably, the mesh adjusting element of the concave plate dredging screen consists of a plurality of transverse pipes which are arranged on the circular arc of the screen main body frame at intervals of 8.0-8.5 degrees, the middle parts of the transverse pipes and the two ends of the transverse pipes are fixedly inserted on the screen main body frame in a penetrating way, and the distance between the adjacent transverse pipes on the concave plate dredging screen is the same as the distance between the adjacent transverse pipes on the concave plate dredging screen.
Preferably, the diameter of the transverse tube is 17-19mm.
Preferably, the concave plate screen comprises 2-3 concave plate dense screens and 2-3 concave plate sparse screens which are connected together, and the combined structure of all concave plate screens forms a U-shaped channel to wrap under the threshing cylinder.
Preferably, the threshing cylinder is provided with 6-8 threshing elements, and the distance between adjacent teeth nails on each threshing element is 135-145mm.
Compared with the prior art, the utility model has at least the following beneficial effects: the threshing mechanism adopts the spike tooth type threshing cylinder, reduces threshing striking times by properly increasing spike tooth space, ensures threshing striking effectiveness by utilizing the concave plate dense screen, ensures smoothness of falling of seeds by the concave plate dense screen, can effectively reduce breakage rate of the seeds by combining all measures, reduces broken stems, ensures that most of bean shells are remained on the stems, simultaneously can still ensure threshing quality, reduces impurity content in a screening stage, and achieves higher cleanliness and lower breakage rate under the action of equal screening power.
Drawings
Fig. 1 shows a threshing mechanism and threshing frame combination suitable for a soybean harvester according to the utility model.
Fig. 2 and 3 are perspective views of a threshing mechanism of the present utility model suitable for use in a soybean harvester.
Fig. 4 is a concave dense screen of a threshing mechanism of the present utility model suitable for use in a soybean harvester.
Fig. 5 is a concave sparse screen suitable for use in a threshing mechanism of a soybean harvester in accordance with the present utility model.
Fig. 6 is a threshing cylinder of a threshing mechanism of the utility model suitable for use in a soybean harvester.
In the figure, the parts represented by the respective reference numerals are as follows:
1. A threshing frame; 2. plant inlet; 3. a straw outlet; 4. a threshing cylinder; 5. concave plate dense screen cloth; 6. concave plate dredging screen; 7. a threshing box; 8. a screwing side; 9. a unscrewing side;
401. A web; 402. a shaft tube; 403. a conical cylinder; 404. auger blades; 405. a threshing element; 4051. a toothed bar; 4052. tooth nails;
501. a screen main body frame; 502. a mesh adjusting member; 5021. a transverse tube; 5022. grid plate.
Detailed Description
The present utility model will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
The utility model aims to overcome the defects of the prior art and provide a device capable of reducing damage to soybeans and improving cleaning effect.
The threshing mechanism suitable for the soybean harvester is arranged on a threshing frame 1, fig. 1 is a combination of the threshing mechanism and the threshing frame 1, one end of the threshing mechanism is a plant inlet 2, and the other end of the threshing mechanism is a straw outlet 3. As shown in fig. 3, one side of the threshing mechanism is a screwing-in side 8, and the other side is a screwing-out side 9. After entering the threshing mechanism from the plant inlet 2, soybean plants pass through the screwing-in side 8, pass through the unscrewing-out side 9, gradually rotate to the straw outlet 3, and are discharged from the straw outlet.
As shown in fig. 1 and 2, the threshing mechanism suitable for the soybean harvester comprises a threshing cylinder 4, a concave plate dense screen 5, a concave plate sparse screen 6 and a threshing box 7. The threshing box 7 is wrapped on the outer side of the threshing cylinder 4, and has a sealing function, and the concave plate dense screen 5 and the concave plate sparse screen 6 are both positioned in the threshing box 7.
As shown in fig. 2 and 3, a concave screen is arranged in the threshing box, and comprises a concave dense screen 5 and a concave sparse screen 6 which are in an arc shape and surround the lower part of the threshing cylinder. The concave plate dense screen is arranged on the screwing-in side 8 of the threshing cylinder, the concave plate sparse screen is abutted against one side of the concave plate dense screen, and is positioned on the unscrewing side 9 of the threshing cylinder.
As shown in fig. 4, the concave dense screen 5 is composed of a screen main body frame 501 and a mesh adjusting member 502 mounted on the screen main body frame. The structural feature of the screen main body frame of the concave plate dense screen 5 is arc-shaped and surrounds the lower part of the threshing cylinder. The mesh adjusting element 502 is composed of a cross tube 5021 and a grid plate 5022. The concave plate dense screen adopts a cross tube 5021 which is arranged on the circular arc of the screen main body frame at intervals of 8.2 degrees (an included angle between the center of the cross tube section and the center of the circular arc) and a grid plate 5022 which is arranged at intervals of 56mm horizontally. The grid plate is arc-shaped, and the grid plate and the transverse pipes are vertically crossed. The interval angle between the concave plate dense screen cloth and the transverse pipe on the concave plate sparse screen cloth is verified to be more suitable for soybean harvesting through experiments, so that the contact area between the concave plate screen cloth and soybean plants is improved on the one hand, and soybean seeds are ensured to be easily screened off on the other hand.
The middle part and the two ends of the transverse tube are fixedly inserted into the screen main body frame, semicircular grooves are uniformly formed in the grid plate, the two ends of the grid plate are fixedly arranged on the screen main body frame, and the transverse tube is meshed with the semicircular grooves in the grid plate and welded. All the transverse pipes are arranged in parallel, and all the grid plates are arranged in parallel.
As shown in fig. 5, the concave-plate screen 6 is composed of a screen main body frame and a mesh adjusting member mounted on the screen main body frame, and the screen main body frame of the concave-plate screen 6 is characterized by an arc shape surrounding below the threshing cylinder. The mesh adjusting element uses the horizontal tube instead of the grid plate, and only uses the horizontal tube which is arranged at 8.2 degrees intervals on the circular arc to adjust the mesh size of the screen, the middle part and the two ends of the horizontal tube are fixedly inserted on the screen main body frame, and the distance between the adjacent horizontal tubes is the same as the distance between the adjacent horizontal tubes on the concave plate dense screen. Since the concave hydrophobic screen 6 does not use a grid plate, its screen holes are significantly larger than the concave hydrophobic screen 5.
The transverse tube used in the utility model is a tube body with a circular cross section, and the diameter of the tube body is 18mm, so that the soybean is not cut, and the soybean is not easy to break. The soybean plants and the concave plate dense screen mesh have large contact area, so that threshing of seeds is facilitated, and after threshing, the soybean seeds pass through the concave plate dense screen mesh and fall more easily.
The threshing cylinder is longer and the length of the single concave plate screen is shorter, which is insufficient to cover the lower part of the whole threshing cylinder, a plurality of concave plate screens can be combined together at the moment, as shown in figure 3, two concave plate dense screens are spliced and arranged on the screwing-in side 8 of the threshing cylinder, two concave plate sparse screens are spliced and arranged on the unscrewing side 9 of the threshing cylinder, and the lower edges of the concave plate sparse screens are tightly abutted against and fixedly connected with the lower edges of the concave plate dense screens. The combined structure of all concave plate screens is similar to a U-shaped channel and is wrapped below the threshing cylinder.
As shown in fig. 6, the threshing cylinder 4 has a plurality of plates 401 and a shaft tube 402, the plates are mounted on the shaft tube with the shaft tube as the center, at least 2 plates are mounted on the shaft tube, and the 2 plates are respectively distributed in the middle and one of the end portions of the shaft tube. The other end of the shaft tube is connected with a conical tube 403, and an auger blade 404 is arranged on the conical tube and can drive soybean plants to enter the threshing cylinder. A plurality of threshing elements 405 are uniformly arranged on the web disc along the circumferential direction, each threshing element comprises a toothed bar 4051 parallel to the shaft tube and a plurality of toothed nails 4052, and the toothed nails 4052 are uniformly welded on the toothed bar 4051. Preferably, the threshing cylinder 4 has 6 threshing elements 405, each of which has a pitch of 140mm between adjacent spikes. The teeth nails on the adjacent threshing elements are arranged in a crossed way. When the power mechanism drives the threshing cylinder to rotate, the auger blade drives soybean plants to enter the threshing cylinder, and the soybean plants are beaten by the rotating teeth nails and gradually rotate to the straw outlet.
Threshing mechanism adopts spike tooth formula threshing cylinder, tooth nail interval 140mm, through suitably increasing the nail tooth interval, has reduced threshing and has hit the number of times, utilizes concave plate dense screen cloth to guarantee threshing and hit the validity of hitting simultaneously, and concave plate sparse screen cloth guarantees the smoothness degree that the seed grain falls, and all measures combine can effectively reduce the seed grain breakage rate, reduce broken stem portion, still can guarantee the quality of threshing when making the beans shell remain on the stem in most, has reduced screening stage and has contained miscellaneous volume, has accomplished to have equal under the effect of screening power cleanliness higher, and the breakage rate is lower.
The soybean plants fed into the threshing assembly enter the threshing box through a plant inlet, the straws and the soybeans are separated under the combined action of the threshing cylinder and the concave plate screen, the straws are left in the threshing box and discharged from a straw outlet, and the soybeans fall through the concave plate screen and enter a subsequent winnowing mechanism.
Although the utility model has been described herein with reference to illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the scope and spirit of the principles of this disclosure. More specifically, various modifications and improvements may be made to the component parts and/or arrangements of the subject combination layout within the scope of the disclosure. In addition to variations and modifications in the component parts and/or arrangements, other uses will be apparent to those skilled in the art.
Claims (6)
1. The threshing mechanism suitable for the soybean harvester comprises a threshing cylinder and a threshing box, wherein the threshing box is wrapped outside the threshing cylinder; the concave plate screen comprises concave plate dense screen and concave plate sparse screen which are connected together, and the pore diameter of the concave plate dense screen is smaller than that of the concave plate sparse screen; the concave plate dense screen is arranged on the screwing-in side of the threshing cylinder, and the concave plate sparse screen is arranged on the unscrewing side of the threshing cylinder; the concave plate dense screen consists of a screen main body frame and a mesh adjusting element arranged on the screen main body frame; the mesh regulating element of the concave plate dense screen is formed by vertically and alternately arranging a plurality of transverse pipes which are arranged at intervals of 8.0-8.5 degrees on the circular arc of the screen main body frame and a plurality of grid plates which are horizontally arranged at intervals of 55-57 mm; the concave plate dredging screen consists of a screen main body frame and a mesh adjusting element arranged on the screen main body frame; the mesh adjusting element of the concave plate dredging screen consists of a plurality of transverse pipes which are arranged in parallel at intervals of 8.0-8.5 degrees on the circular arc of the screen main body frame, and the middle part of each transverse pipe and the two ends of each transverse pipe are fixedly inserted into the screen main body frame.
2. The threshing mechanism for soybean harvester as set forth in claim 1, wherein the middle part of the horizontal tube and the two ends of the horizontal tube are fixed on the main frame of the screen, the grid plates are uniformly provided with semicircular grooves, the two ends of the grid plates are fixed on the main frame of the screen, and the horizontal tube is meshed with the semicircular grooves on the grid plates and welded.
3. Threshing mechanism for a soybean harvester as claimed in claim 1, characterized in that the distance between adjacent cross pipes on the concave-deck screens is the same as the distance between adjacent cross pipes on the concave-deck screens.
4. Threshing mechanism for a soybean harvester as claimed in claim 1, characterized in that the diameter of the transverse tube is 17-19mm.
5. Threshing mechanism for a soybean harvester as claimed in claim 1, characterized in that the concave screen comprises 2-3 concave dense screens, 2-3 concave sparse screens connected together, all concave screens combined forming a U-shaped channel wrapped under the threshing cylinder.
6. Threshing mechanism for a soybean harvester as claimed in claim 1, characterized in that the threshing cylinder has 6-8 threshing elements, the spacing between adjacent spikes on each threshing element being 135-145mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320084950.1U CN220965662U (en) | 2023-01-29 | 2023-01-29 | Threshing mechanism suitable for soybean harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320084950.1U CN220965662U (en) | 2023-01-29 | 2023-01-29 | Threshing mechanism suitable for soybean harvester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220965662U true CN220965662U (en) | 2024-05-17 |
Family
ID=91042298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320084950.1U Active CN220965662U (en) | 2023-01-29 | 2023-01-29 | Threshing mechanism suitable for soybean harvester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220965662U (en) |
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2023
- 2023-01-29 CN CN202320084950.1U patent/CN220965662U/en active Active
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