CN203748284U - Axial flow threshing device of combine harvester - Google Patents
Axial flow threshing device of combine harvester Download PDFInfo
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- CN203748284U CN203748284U CN201420148624.3U CN201420148624U CN203748284U CN 203748284 U CN203748284 U CN 203748284U CN 201420148624 U CN201420148624 U CN 201420148624U CN 203748284 U CN203748284 U CN 203748284U
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- threshing
- top cover
- spike
- frame
- tooth
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Abstract
The utility model relates to an axial flow threshing device of a combine harvester. When a crop that is hard to be threshed, such as paddy rice, is harvested, problems of entrainment loss and incomplete threshing of grains are caused by humidity of the crop or by a huge feed quantity, in order to solve the problems mentioned above, spike teeth 4 are arranged on an inner cambered surface of a cylinder composed of a concave plate sieve 5 and a top cover 2 so as to improve a threshing ability; during a threshing progress, along with rotation of a threshing roller, the crop is, under action of a guide plate 3, attached to the inner cambered surface of the cylinder composed of the concave plate sieve and the top cover to do helical movement and to flow by the threshing device, the spike teeth are penetrated into a crop layer that rotates along with the threshing roller 1, so that the crop is brushed and rubbed, and grains are obtained by threshing. The axial flow threshing device of the combine harvester disclosed by the utility model has the beneficial effects that: on a basis of original threshing by the concave plate sieve 5, threshing by the spike teeth 4 is further provided, so that, when the crop that is hard to be threshed, such as the paddy rice, is harvested, threshing can be accomplished at a front half portion of the threshing roller 1 and separation of the grains can be accomplished at a rear half portion, in this way, entrainment loss of the grains caused by straws discharged by the roller is reduced; and because threshing is performed in advance, a cleaning effect is good and grain loss on a sieve surface is decreased.
Description
Affiliated technical field
The utility model relates to combine, is specifically related to axial-flow threshing device.
Background technology
At present, known combine axial-flow threshing device is to be made up of threshing cylinder, top cover, guide plate, concave grate, frame, guide plate is fixedly connected on the intrados of top cover, threshing cylinder is made up of threshing tooth and other member, threshing cylinder is fixed in frame by bearing, top cover is on threshing cylinder top and be fixed in frame, and concave grate is in threshing cylinder bottom and be fixed in frame.When axial-flow threshing device work, crop is fed by one end of threshing cylinder, and feeding mode is divided again axial feeding and radially feeding, and axially feeding feeding end is helical blade, and helical blade imports sheller unit crop; Radially feeding is exactly that cylinder does not have helical blade and centrum, and a square feeding mouth is set on concave grate, and crop enters sheller unit by square feeding mouth; Along with the rotation of threshing cylinder, it is for the helical movement that crop is being pasted the cylinder intrados of concave grate and top cover composition, flows through sheller unit along threshing cylinder axis direction.Grain, crushing straw are fallen by notch board sieve aperture under the effect of threshing cylinder centrifugal force, and straw grass is discharged from the other end of threshing cylinder.In threshing course, the effect of guide plate is that crop is moved along threshing cylinder axis direction, and concave grate plays threshing and the effect separating.Perfect condition grain is taken off by notch board sieve aperture and is fallen separation in threshing cylinder first half section, and second half section threshing cylinder has also been taken off all the other the grain being mixed in straw grass and fallen separation by notch board sieve aperture.Because the crop humidities such as paddy rice, grain maturity difference, also because crop to paste the cylinder intrados that concave grate and top cover form for the helical movement, crop layer has certain thickness, pasting the easy threshing of crop of concave grate, the threshing of the inside is unclean, some grain was just taken off to the threshing cylinder second half section, did not also come to such an extent that suddenly fall separation by notch board sieve aperture and discharged with regard to being clipped in the other end from threshing cylinder in straw grass, formed grain entrainment loss.The grain also having did not also take off in the threshing cylinder second half section, formed grain de-unclean.
Summary of the invention
In order to solve axial-flow threshing device because the grain entrainment loss that crop humidity, grain maturity difference, the crop bed thickness such as paddy rice cause and grain are de-unclean, increase spike-tooth to improve threshing ability at the cylinder intrados of concave grate and top cover composition, spike-tooth can be deep in the crop layer with threshing cylinder rotation and go, crop is curried, rubbing, and grain is taken off.
The utility model solves the technical scheme that its technical problem adopts: around the diametric(al) of axial-flow threshing device threshing cylinder, cylinder external diameter, several spike-tooths are set, spike-tooth is fixedly connected on concave grate or is fixedly connected in frame or is fixedly connected on top cover, can spike-tooth be connected on concave grate or in frame or on top cover with bolt, spike-tooth also can be connected through Accessory Members and concave grate or frame or top cover bolt, also can spike-tooth carries and is threaded on concave grate or frame or top cover.According to above various mounting means, on concave grate or frame or top cover, installing hole is set or attacks threaded installation screw.Spike-tooth and concave grate or frame or top cover connected mode can also be to adopt to be welded to connect.
Spike-tooth height can exceed cylinder external diameter and with the threshing tooth on threshing cylinder be crossing condition, also can be no more than threshing cylinder external diameter by spike-tooth height.
The utility model beneficial effect is, axial-flow threshing device is on the basis of original concave grate threshing, add spike-tooth threshing, threshing can be completed at the first half of threshing cylinder, latter half completes grain and separates, because threshing is forward, it is few that cylinder straw grass is out carried grain loss secretly, reduced threshing percent of loss.Grain, crushing straw are fallen on sorting screen also forward, clean effectively, and compass screen surface loss is few, and grain clean rate has also improved.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the vertical section structural map of axial-flow threshing device.
Fig. 2 is the I-I cutaway view of Fig. 1
In figure, 1. threshing cylinder 1-1. threshing tooth 2. top cover 3. guide plate 4. spike-tooth 5. concave grate 6. frame 7. outlet of straw grass and direction 8. threshing cylinder rotation directions
Embodiment
As shown in Figure 1 and Figure 2, for a kind of combine axial-flow threshing device of the present invention, it comprises frame 6, frame 6 is arranged on chassis of combine harvester, threshing cylinder 1 is fixed in frame 6 by bearing, top cover 2 is on threshing cylinder 1 top and be fixed in frame 6, and concave grate 5 is in threshing cylinder 1 bottom and be fixed in frame 6.Guide plate 3 is fixedly connected on the intrados of top cover 2, threshing cylinder 1 is made up of threshing tooth 1-1 and other member, feeding mode is divided again axial feeding and radially feeding, be axial feeding axial-flow threshing device as shown in Figure 1 and Figure 2, axially feeding feeding end is helical blade, and helical blade imports sheller unit crop; Radially feeding axial-flow threshing device does not represent in the accompanying drawings, and radially feeding axial-flow threshing device is exactly that cylinder feeding end does not arrange helical blade and centrum, and a square feeding mouth is set on concave grate, and crop enters sheller unit by square feeding mouth.
As shown in Figure 1 and Figure 2, around the diametric(al) of threshing cylinder 1, threshing cylinder 1 external diameter, several spike-tooths 4 are set, spike-tooth 4 is fixedly connected on concave grate 5 or is fixedly connected in frame 6 or is fixedly connected on top cover 2, can spike-tooth 4 be connected on concave grate 5 or in frame 6 or on top cover 2 with bolt or screwed member, spike-tooth 4 also can be connected through Accessory Members and concave grate 5 or frame 6 or top cover 2 use bolts or screwed member, also can be threaded on concave grate 5 or frame 6 or top cover 2 in spike-tooth 4 body settings.According to above various mounting means, on concave grate 5 or frame 6 or top cover 2, installing hole is set or attacks threaded installation screw.Spike-tooth 4 and concave grate 5 or frame 6 or top cover 2 connected modes can also be to adopt to be welded to connect, and except being welded to connect, the quantity of spike-tooth 4 and setting height(from bottom) can be adjusted according to moist degree, the feed quantity of crop.
As Fig. 1, shown in Fig. 2, when threshing, crop is fed by helical blade one end, along with threshing cylinder 1 is by the rotation of the direction shown in 8, it is for the helical movement with the cylinder intrados that top cover 2 forms that crop is being pasted concave grate 5, the effect of guide plate 3 is to make crop move and flow through sheller unit along threshing cylinder 1 axis direction, concave grate 5 and spike-tooth 4 play flailing action, concave grate 5 works to separate grain simultaneously, grain, crushing straw is fallen by notch board sieve aperture under the effect of threshing cylinder 1 centrifugal force, because concave grate 5 Length Ratio top covers 2 are short one section, straw grass is discharged from the outlet of other end straw grass and the direction 7 of sheller unit.
Claims (11)
1. a combine axial-flow threshing device, it comprises: threshing cylinder, top cover, guide plate, concave grate, frame; Described threshing cylinder is made up of threshing tooth and other members; It is characterized in that: around the diametric(al) of threshing cylinder, cylinder external diameter, several spike-tooths are set, spike-tooth is fixedly connected on concave grate or is fixedly connected in frame or is fixedly connected on top cover, described being fixedly connected with, can be fixedly connected on above any one in concave grate, frame, top cover or disperse and be fixedly connected on above two or three.
2. axial-flow threshing device according to claim 1, it is characterized in that: described spike-tooth is to be fixedly connected on concave grate or through Accessory Members and to be fixedly connected in frame or through Accessory Members and to be fixedly connected on top cover through Accessory Members, described spike-tooth is fixedly connected with through Accessory Members, can or disperse to be fixedly connected on above two or three through Accessory Members above Accessory Members is fixedly connected on any one in concave grate, frame, top cover.
3. axial-flow threshing device according to claim 1 and 2, is characterized in that: spike-tooth height exceed cylinder external diameter and with the threshing tooth on threshing cylinder be crossing condition.
4. axial-flow threshing device according to claim 1 and 2, is characterized in that: spike-tooth height is no more than threshing cylinder external diameter.
5. axial-flow threshing device according to claim 1 and 2, is characterized in that: on concave grate or frame or top cover, have installing hole.
6. axial-flow threshing device according to claim 1 and 2, is characterized in that: on concave grate or frame or top cover, attack threaded installation screw.
7. axial-flow threshing device according to claim 1 and 2, is characterized in that: spike-tooth is connected by bolt or screwed member and concave grate or frame or top cover.
8. axial-flow threshing device according to claim 1 and 2, is characterized in that: spike-tooth is to be connected by bolt or screwed member through Accessory Members and concave grate or frame or top cover.
9. axial-flow threshing device according to claim 1 and 2, is characterized in that: spike-tooth by body be threaded on concave grate or frame or top cover.
10. axial-flow threshing device according to claim 1 and 2, is characterized in that: spike-tooth and concave grate or frame or top cover adopt and be welded to connect.
11. axial-flow threshing devices according to claim 1 and 2, is characterized in that: described threshing cylinder is axially feeding or radially feeding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420148624.3U CN203748284U (en) | 2014-03-24 | 2014-03-24 | Axial flow threshing device of combine harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420148624.3U CN203748284U (en) | 2014-03-24 | 2014-03-24 | Axial flow threshing device of combine harvester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203748284U true CN203748284U (en) | 2014-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420148624.3U Expired - Fee Related CN203748284U (en) | 2014-03-24 | 2014-03-24 | Axial flow threshing device of combine harvester |
Country Status (1)
| Country | Link |
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| CN (1) | CN203748284U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106612995A (en) * | 2016-11-15 | 2017-05-10 | 济南大学 | Horizontal axial threshing device of rice and wheat |
| CN107509470A (en) * | 2017-09-28 | 2017-12-26 | 饶魁 | A kind of rice threshing device |
| CN113243208A (en) * | 2021-04-23 | 2021-08-13 | 阿维斯汀农业机械(苏州)有限公司 | Corn separating mechanism |
-
2014
- 2014-03-24 CN CN201420148624.3U patent/CN203748284U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106612995A (en) * | 2016-11-15 | 2017-05-10 | 济南大学 | Horizontal axial threshing device of rice and wheat |
| CN107509470A (en) * | 2017-09-28 | 2017-12-26 | 饶魁 | A kind of rice threshing device |
| CN113243208A (en) * | 2021-04-23 | 2021-08-13 | 阿维斯汀农业机械(苏州)有限公司 | Corn separating mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 150000 Heilongjiang city of Harbin province Daoli District West Six Street 28 No. 404 Patentee after: Liu Yan Address before: 156100 No. 31, No. 190, Xiangyang Community, Fujin, Heilongjiang Patentee before: Liu Yan |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20170324 |
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| CF01 | Termination of patent right due to non-payment of annual fee |