CN210298566U - Gap bridge multi-tangential flow threshing device of combined harvester - Google Patents
Gap bridge multi-tangential flow threshing device of combined harvester Download PDFInfo
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- CN210298566U CN210298566U CN201921169096.9U CN201921169096U CN210298566U CN 210298566 U CN210298566 U CN 210298566U CN 201921169096 U CN201921169096 U CN 201921169096U CN 210298566 U CN210298566 U CN 210298566U
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- 241000251169 Alopias vulpinus Species 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 3
- 230000001788 irregular Effects 0.000 abstract description 5
- 241000196324 Embryophyta Species 0.000 description 28
- 235000013339 cereals Nutrition 0.000 description 16
- 244000068988 Glycine max Species 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 235000010469 Glycine max Nutrition 0.000 description 4
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 4
- 244000046052 Phaseolus vulgaris Species 0.000 description 4
- 238000010009 beating Methods 0.000 description 3
- 238000003306 harvesting Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 244000038559 crop plants Species 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000000576 supplementary effect Effects 0.000 description 1
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Abstract
The utility model relates to a combine harvester crosses bridge many tangential flow thresher belongs to agricultural machine technical field. The device is including settling the plant feeding area at the gap bridge support front end, and the output in plant feeding area links up with many concave sieve that first, second and third concave sieve constitute, and plant feeding cylinder is installed to the top in plant feeding area, and rasp bar threshing cylinder, board-like threshing cylinder, spike tooth threshing cylinder are installed respectively to the top of first, second and third concave sieve, and the below of many concave sieves installs the seed grain conveyer belt. The utility model discloses arrange thresher in the gap bridge with the tangential flow mode and carry upper portion, make to thresh and carry organic combination, space overlapping to can reduce combine harvester volume greatly, make it be applicable to the little and irregular mountain region of field piece.
Description
Technical Field
The utility model relates to a harvester part especially relates to a combine harvester crosses bridge many tangential flow thresher, belongs to agricultural machine technical field.
Background
The typical structure of the existing bean crop combine harvester is disclosed in Chinese patent documents named as 'small soybean combine harvester' with application number of 201510505965.0 and 'an adaptive cleaning crop harvester' with application number of 201910162868.4. The basic structure of the combine harvester is that the front end of a walking chassis supports a header, the middle rear part is provided with threshing equipment, the threshing equipment consists of an axial flow main threshing roller, a concave plate sieve positioned below the axial flow main threshing roller and a vibrating sieve positioned below the concave plate sieve, and the header is connected with the threshing equipment through a bridge conveying mechanism. After the header finishes harvesting, the harvested crops are conveyed to threshing equipment through gap bridge conveying to finish threshing.
However, the above-mentioned conventional combine harvester for bean crops is difficult to be used in hilly and mountainous areas where the field is generally small and the land is irregular due to its large size. To the applicant's knowledge, areas such as hilly and mountainous areas still have to be harvested manually, which is costly and labor intensive.
Disclosure of Invention
The utility model aims to provide a: aiming at the problems in the prior art, the gap bridge multi-tangential-flow threshing device of the combined harvester organically combines gap bridge conveying and threshing, thereby laying a foundation for greatly reducing the volume of the combined harvester and effectively solving the problem of mechanical harvesting of the bean crops in small and irregular hills and mountains.
In order to achieve the above purpose, the basic technical scheme of the utility model is that: a gap bridge multi-tangential flow threshing device of a combined harvester comprises a plant feeding belt arranged at the front end of a gap bridge support, wherein the output end of the plant feeding belt is connected with a multi-concave screen formed by a first concave screen, a second concave screen and a third concave screen, a plant feeding roller is arranged above the plant feeding belt, a rasp bar threshing roller, a plate type threshing roller and a spike tooth threshing roller are respectively arranged above the first concave screen, the second concave screen and the third concave screen, and a grain conveying belt is arranged below the multi-concave screen;
the plant feeding roller comprises a roller body supported on transmission shafts at two ends, and the roller body is provided with radial rod teeth which are circumferentially equally spaced and axially and uniformly distributed;
the rasp bar threshing cylinder comprises a group of hexagonal radial plates which are arranged on the rotating shaft at intervals, and six top angles of each radial plate are fixedly connected with rasp bars with herringbone sections respectively;
the plate-type threshing cylinder comprises three radial fixed plates which are uniformly distributed in the circumferential direction and fixedly connected with a central shaft, and the outer sides of the fixed plates are fixedly connected with extended flexible threshing plates;
the spike-tooth threshing cylinder comprises end plates which are respectively supported near two ends of a rotating shaft, six fixed pipes which are uniformly distributed in the circumferential direction are fixedly connected between the two end plates, and radial spike teeth which are uniformly distributed in the axial direction are fixedly connected on each fixed pipe.
The utility model not only arranges the threshing device on the upper part of the gap bridge conveying in a tangential flow mode to organically combine threshing and conveying and overlap the space, thereby greatly reducing the volume of the combine harvester and being suitable for small and irregular mountainous areas of the field; the rasp-bar threshing cylinder has small impact on seeds but obvious threshing effect by rubbing and threshing through the combing brush, the plate-type threshing cylinder has small impact on plants and seeds during flexible threshing, and the spike-tooth threshing cylinder has larger impact force on the plants and the seeds during impact threshing; the threshing cylinders are arranged and combined in sequence, and most of threshing work can be finished in the first link by utilizing a threshing mechanism of the rasp-bar threshing cylinders; then, with the help of the auxiliary action of flexible threshing of the plate-type threshing cylinder, further threshing the plants with obviously reduced threshing amount in a second step; finally, the spike-tooth threshing cylinder with strong threshing capacity is used for threshing the unhulled grains which are still not threshed in the third link, and the spike-tooth threshing cylinder has feeding and conveying capacity, so that the function of feeding threshed plant stalks in an auxiliary manner is achieved while threshing is completed, and the threshing method is quite reasonable.
The utility model discloses further perfect is, the chevron shape contained angle of line pole is 150 +/-2 to contrary direction of rotation one side is laminated, is linked firmly with the mode of radials apex angle chamfer laminating towards direction of rotation one side with the corresponding one side of radials apex angle.
The utility model discloses further perfect is, install in the corresponding installation round hole of both sides board of bridge support through the round pin axle respectively at each concave sieve both ends of many concave sieves.
The utility model discloses it is still further perfect, the installation round hole is upper and lower spaced round hole.
The utility model discloses further perfection is again, plant feeding cylinder and rasp bar threshing cylinder, board-like threshing cylinder, spike tooth threshing cylinder's pivot is equipped with driven sprocket respectively and the pole takes off the duplex sprocket, the board takes off the duplex sprocket, the tooth takes off the duplex sprocket, rotary power takes off the duplex sprocket input by the tooth, is connected with each cylinder transmission through the driving chain respectively.
The utility model discloses still further perfect is, the fixed plate forms radial clamping structure, and the outside centre gripping has linked firmly epitaxial flexible threshing plate.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic top view of the structure of fig. 1.
FIG. 3 is a schematic view of the plant feeding roller in the embodiment of FIG. 1.
Fig. 4 is a schematic view of the rasp bar threshing cylinder structure in the embodiment of fig. 1.
Fig. 5 is a schematic view of the plate-type threshing cylinder structure in the embodiment of fig. 1.
Fig. 6 is a schematic view of the spiked threshing cylinder configuration in the embodiment of fig. 1.
FIG. 7 is a schematic view of a multiple concave screen configuration of the embodiment of FIG. 1.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Example one
The basic structure of the gap bridge multi-tangential-flow threshing device of the combine harvester is shown in fig. 1, a gap bridge bracket 20 of a frame structure is provided with a plant feeding belt 2 from low to high at the front end for being connected with a header, and harvested crop plants are conveyed backwards under the driving of a motor 1. The output end of the plant feeding belt 2 is connected with a multi-concave sieve 4 formed by combining a first concave sieve, a second concave sieve and a third concave sieve. The plant feeding rollers 5 are supported and installed above the plant feeding belt 2 through bearing seats 9 on the gap bridge support 20 respectively and are used for assisting in conveying crop plants. A rasp bar threshing cylinder 6, a plate type threshing cylinder 7 and a spike-tooth threshing cylinder 8 are respectively arranged above the first concave sieve, the second concave sieve and the third concave sieve and used for finishing multiple threshing with various characteristics. A seed conveyer belt 3 driven by a motor 1' is arranged below the multi-concave sieve 4; used for conveying the grains leaked from the multi-concave sieve 4 to a subsequent cleaning device.
As shown in figure 2, the rotating shafts of the plant feeding roller 5, the rasp bar threshing roller 6, the plate type threshing roller 7 and the spike-tooth threshing roller 8 are respectively provided with driven chain wheels 10 with different tooth numbers, rod threshing duplex chain wheels 12 and 13, plate threshing duplex chain wheels 15 and 16 and tooth threshing duplex chain wheels 18 and 19 according to requirements, the rotating power is input by 18 in the tooth threshing duplex chain wheels at the positions needing powerful threshing, and the transmission among the rollers is realized through transmission chains 17, 14 and 11 with different link numbers. Therefore, the transmission path is simple and the synchronism is good.
The plant feeding roller 5 is shown in figure 3 and comprises a roller body 5-2 which is supported on transmission shafts 5-4 at two ends through end discs 5-3, and the roller body 5-2 is provided with a group of five evenly distributed radial rod teeth 5-1 which are equally spaced by ninety degrees in the circumferential direction and are axially arranged. During operation, plant feeding cylinder 5 anticlockwise rotation, linear velocity direction is unanimous with 2 direction of delivery in plant feeding area, can play supplementary effect of carrying the rear end with cereal plant to even though it leads to the 2 inclination angles in plant feeding area to increase to add thresher because of gap bridge support 20, also can guarantee the transport of results back cereal plant.
The rasp bar threshing cylinder 6 comprises a group of four hexagonal webs 6-2 which are arranged on a rotating shaft 6-4 at intervals, as shown in figure 4, the webs 6-2 at two ends are fixedly connected with the rotating shaft 6-4 through end discs 6-3, and six top corners of each web are fixedly connected with rasp bars 6-1 with herringbone sections respectively. The threshing principle of the rasp bar threshing cylinder is combing and brushing, the threshing effect is obvious, and the beating to grains is small. The herringbone included angle of the rasp bar 6-1 in the embodiment is 150 +/-2 degrees, and the rasp bar is fixedly connected in a manner that one side in the reverse rotation direction is attached to the corresponding side of the radial plate vertex angle and one side in the rotation direction is attached to the radial plate vertex angle in a chamfering manner, so that the original six 120-degree triangle vertex angles are in an approximate isosceles trapezoid shape after being chamfered, and compared with the rasp bar at the triangle vertex angle, the structure can effectively increase the grain threshing contact area while ensuring the kneading effect, and further ensures that most grains in the first link are threshed; meanwhile, the approximate isosceles trapezoid can meet the dynamic balance requirement, and the uniformity and the stability of threshing operation are improved.
The plate-type threshing cylinder 7 comprises three fixed plates 7-2 which are fixedly connected with a central shaft 7-3 and are uniformly distributed in the circumferential direction to form a radial clamping structure, and the outer sides of the fixed plates 7-2 are fixedly clamped with extended flexible threshing plates 7-1. The plate-type threshing cylinder adopts a flexible threshing principle, has small beating effect on plants and grains, and can be used for auxiliary threshing.
The spike-tooth threshing cylinder 8 comprises end plates 8-6 which are respectively supported near two ends of a rotating shaft 8-7 through end disc plates 8-1, six fixed pipes 8-3 which are uniformly distributed in the circumferential direction are fixedly connected between the two end plates and an intermediate plate 8-5, and radial spike teeth 8-2 which are uniformly distributed in the axial direction are fixedly connected on each fixed pipe, as shown in figure 6. The threshing principle of the spike-tooth threshing cylinder is that the beating force on plants and seeds is relatively large
The multi-concave sieve is composed of a first concave sieve 4-2 corresponding to the rasp bar threshing cylinder, a second concave sieve 4-3 corresponding to the plate type threshing cylinder and a third concave sieve corresponding to the plate type threshing cylinder, as shown in fig. 7. During assembly, two ends of each concave sieve are respectively installed in the circular installing holes of the two side plates of the gap bridge support 20 through pin shafts 4-1, the circular installing holes are arranged at intervals up and down, and the threshing gap can be conveniently adjusted by selecting the circular installing holes.
When the gap bridge multi-tangential flow threshing device works, soybean plants are fed into a plant feeding belt connected with the cutting table of the combined harvester, under the matching action of the plant feeding belt and a plant feeding roller, the soybean plants are input and sequentially pass through a multi-stage threshing link consisting of a first concave sieve, a second concave sieve, a third concave sieve and a corresponding roller above the first concave sieve, soybean grains separated by stage threshing fall on a grain conveying belt and are conveyed to the rear end of the combined harvester, and gap bridge threshing operation is completed. In the process, the rasp-bar threshing cylinder has good threshing effect on mature grains, most of threshing work can be finished in the first threshing link, the striking and crushing are small relative to the spike-tooth threshing cylinder, and the threshed grains are kept intact and are very suitable for primary threshing; the flexible threshing of the plate type threshing cylinder has small crushing on grains, but the threshing capacity is lower than that of the rasp bar threshing cylinder at low rotating speed, so that the flexible threshing cylinder can be used as a second link with less threshing amount to supplement threshing, and the threshing rate is improved; the spike-tooth threshing cylinder has strong threshing capacity and certain feeding and conveying capacity, the grains fed and threshed in the first link and the second link are relatively difficult to thresh, the spike-tooth threshing cylinder can effectively thresh the grains difficult to thresh, and meanwhile, the third link needs to convey the threshed plant stalks to the rear end of the harvester besides threshing, so the spike-tooth threshing cylinder is adopted. Tests show that the multistage combination sequence of the embodiment achieves unexpected ideal effect of soybean threshing, the threshing rate is extremely high, and soybean seeds are basically not damaged. The combined harvester of the embodiment is adopted to ensure that the whole length is greatly shortened because threshing is overlapped on gap bridge conveying, thereby being suitable for mechanized harvesting of the bean crops in small and irregular hilly mountains.
Claims (6)
1. The utility model provides a many tangential flow thresher of combine gap bridge which characterized in that: the threshing machine comprises a plant feeding belt (2) arranged at the front end of a gap bridge support (20), wherein the output end of the plant feeding belt is connected with a multi-concave sieve (4) formed by a first concave sieve, a second concave sieve and a third concave sieve, a plant feeding roller (5) is arranged above the plant feeding belt, a rasp bar threshing roller (6), a plate type threshing roller (7) and a spike tooth threshing roller (8) are respectively arranged above the first concave sieve, the second concave sieve and the third concave sieve, and a seed conveying belt (3) is arranged below the multi-concave sieve (4);
the plant feeding roller (5) comprises a roller body (5-2) supported on transmission shafts (5-4) at two ends, and the roller body is provided with radial rod teeth (5-1) which are circumferentially equally spaced and axially and uniformly distributed;
the rasp bar threshing cylinder (6) comprises a group of hexagonal radial plates (6-2) which are arranged on the rotating shaft (6-4) at intervals, and six vertex angles of each radial plate are fixedly connected with a rasp bar (6-1) with a herringbone cross section respectively;
the plate-type threshing cylinder (7) comprises three radial fixed plates (7-2) which are fixedly connected with a central shaft (7-3) and are uniformly distributed in the circumferential direction, and the outer sides of the fixed plates are fixedly connected with extended flexible threshing plates (7-1);
the spike-tooth threshing cylinder (8) comprises end plates (8-6) which are respectively supported near two ends of a rotating shaft (8-7), six fixed pipes (8-3) which are uniformly distributed in the circumferential direction are fixedly connected between the two end plates, and radial spike teeth (8-2) which are uniformly distributed in the axial direction are fixedly connected on each fixed pipe.
2. The combine bridge-crossing multi-tangential flow threshing device of claim 1, wherein: the herringbone included angle of the rasp bar is 150 +/-2 degrees, and the reverse rotation direction side is attached to one corresponding side of the radial plate vertex angle and is fixedly connected with the radial plate vertex angle in a manner of being attached to one side of the reverse rotation direction and the radial plate vertex angle in a chamfering manner.
3. The combine bridge-crossing multi-tangential flow threshing device of claim 2, wherein: two ends of each concave screen of the multiple concave screens are respectively installed in corresponding installation round holes of two side plates of the bridge support through pin shafts.
4. The combine bridge-crossing multi-tangential flow threshing device of claim 3, wherein: the mounting round holes are arranged at intervals up and down.
5. The combine bridge-crossing multi-tangential flow threshing device of claim 4, wherein: the plant feeding roller, the threaded rod threshing roller, the plate type threshing roller and the spike-tooth threshing roller are respectively provided with a driven chain wheel, a rod-threshing duplex chain wheel, a plate-threshing duplex chain wheel and a tooth-threshing duplex chain wheel, and rotary power is input by the tooth-threshing duplex chain wheel and is respectively in transmission connection with each roller through a transmission chain.
6. The combine bridge-crossing multi-tangential flow threshing device of claim 5, wherein: the fixed plate forms a radial clamping structure, and the outer side of the fixed plate is fixedly connected with an extended flexible threshing plate in a clamping manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921169096.9U CN210298566U (en) | 2019-07-24 | 2019-07-24 | Gap bridge multi-tangential flow threshing device of combined harvester |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921169096.9U CN210298566U (en) | 2019-07-24 | 2019-07-24 | Gap bridge multi-tangential flow threshing device of combined harvester |
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| CN210298566U true CN210298566U (en) | 2020-04-14 |
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| CN201921169096.9U Withdrawn - After Issue CN210298566U (en) | 2019-07-24 | 2019-07-24 | Gap bridge multi-tangential flow threshing device of combined harvester |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110278766A (en) * | 2019-07-24 | 2019-09-27 | 农业农村部南京农业机械化研究所 | A kind of combined harvester gap bridge cuts flow threshing device |
-
2019
- 2019-07-24 CN CN201921169096.9U patent/CN210298566U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110278766A (en) * | 2019-07-24 | 2019-09-27 | 农业农村部南京农业机械化研究所 | A kind of combined harvester gap bridge cuts flow threshing device |
| CN110278766B (en) * | 2019-07-24 | 2024-03-26 | 农业农村部南京农业机械化研究所 | Multi-cutting threshing device for combine harvester |
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Granted publication date: 20200414 Effective date of abandoning: 20240326 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200414 Effective date of abandoning: 20240326 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |