CN102119608B - Threshing grass-smashing mechanism for half-feeding type combine harvester - Google Patents
Threshing grass-smashing mechanism for half-feeding type combine harvester Download PDFInfo
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- CN102119608B CN102119608B CN 201110020492 CN201110020492A CN102119608B CN 102119608 B CN102119608 B CN 102119608B CN 201110020492 CN201110020492 CN 201110020492 CN 201110020492 A CN201110020492 A CN 201110020492A CN 102119608 B CN102119608 B CN 102119608B
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- threshing
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- broken careless
- careless cutter
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Abstract
The invention relates to a threshing grass-smashing mechanism for a half-feeding type combine harvester, which comprises a threshing chamber, a threshing rotary drum and a grass-smashing cutting knife arranged in the threshing chamber, wherein the grass-smashing cutting knife is arranged on the upper part at the side opposite to a feeding port, of the threshing chamber; the grass-smashing cutting knife is an arch-shaped saw-tooth knife; one side of the saw teeth is arc-shaped; the saw teeth side of the grass-smashing cutting knife is opposite to the threshing rotary drum; and a saw teeth surface is arranged in a space between threshing gears. The invention provides the threshing grass-smashing mechanism for a half-feeding type combine harvester, which is long in service life of the grass-smashing cutting knife, is low in energy consumption, can be used for thoroughly cutting and is difficult to be blocked.
Description
Technical field
The present invention relates to a kind of combine, especially relate to a kind of threshing grass chopper structure of combine.
Background technology
Half-feed combine harvester all comprises separating mechanism, and separating mechanism comprises a threshing cavity, is provided with threshing cylinder in the threshing cavity.In order to make it when working, the straw, the stalk that fall in the threshing cylinder can be discharged smoothly, need shred it.The grass chopper structure of present most semi-feeding type separating mechanism all is made up of one group of blade being located on the threshing cavity, and this blade is generally rectilinear blade, is that the Chinese patent of CN201260308 discloses a kind of broken careless thresher like publication number; Comprise support body; Power-actuated rotating shaft, threshing cylinder and upper and lower cover body are equipped with the threshing tooth on the threshing cylinder; Cover in the upper cover body and be fixed with grass-smashing reamer, the grass-smashing reamer operating position is between two threshing teeth.The utility model further is provided with into and out of the air port, under threshing cylinder, screen cloth is arranged, and screen cloth has pay-off.The utility model can cut rice and wheat straw in threshing, to guarantee the normal operation of thresher, particularly its threshing mode of all feeding-in combine is had tangible advantage.To getting into the rice and wheat straw in the thresher, through the repeatedly cutting of grass-smashing reamer, to carry out separating treatment easily.When this grass-smashing reamer utilized threshing cylinder to rotate, drive straw, stalk were got on the knife edge, utilized its impulsive force to cut off.This grass chopper structure simple in structure, easy to process, but its shortcoming is also quite obvious, at first, in use, rice straw is bigger to the impact of grass-smashing reamer, the long-time use, and damage appears in grass-smashing reamer easily; Secondly, this straw that in impact process, is not cut off, stalk can be by the threshing tooth almost to be pulled through perpendicular to the direction of the knife edge; Make easily that on the one hand distortion appears in grass-smashing reamer; On the other hand, this cutting mode is bigger to the power requirement of threshing cylinder, and then causes energy consumption big; Secondly, in the pulling process of cylinder to straw, stalk, much finally be not cut off, these straw, stalk are filled in the gap between grass-smashing reamer easily again, and cleaning is trouble very.
Summary of the invention
The present invention solves the existing in prior technology grass-smashing reamer to damage easily; Energy consumption is bigger, and rice straw is difficult for cutting off, and occurs technical problems such as obstruction easily; A kind of grass-smashing reamer long service life is provided; At the bottom of the energy consumption, cutting thoroughly is not prone to the threshing grass chopper structure of the half-feed combine harvester of obstruction.
Above-mentioned technical problem of the present invention mainly is able to solve through following technical proposals: a kind of threshing grass chopper structure of half-feed combine harvester; Comprise threshing chamber, threshing cylinder and be located at the broken careless cutter in the threshing chamber; It is characterized in that described broken careless cutter is located at the top of the relative side of threshing chamber charging aperture; Broken careless cutter is the domes serrated knife; Its sawtooth one side is a circular arc, and sawtooth one side of broken careless cutter is relative with threshing cylinder, and serrated face is in the spacing of threshing tooth; The arc length of described sawtooth one side is 1/6 to 1/4 of a threshing cylinder girth, and the lower end of broken careless cutter and threshing cylinder spacing are greater than the spacing of broken careless cutter upper end with threshing cylinder.In the threshing course of the separating mechanism of semi-feeding type; Have a certain amount of straw and stalk and fall in the threshing chamber, these straw and stalk rotate under the drive of threshing tooth, when turning to the position of grass-smashing reamer; The following end in contact of straw and stalk and grass-smashing reamer; And under the further drive of threshing tooth, straw and stalk and grass-smashing reamer take place to slide relatively, and straw and stalk are constantly cut off under the effect of grass-smashing reamer.Because straw and stalk are in sliding process; Constantly cut off; Therefore smaller to the impact meeting of grass-smashing reamer, and straw and stalk can in this process, be cut more thorough, thereby the careless problem of card can not appear; Because the cutting process of this sliding type is gone up the requirement of cutting force, can save a large amount of energy consumptions again.Broken careless cutter of the present invention is when work; Amount when straw and stalk have just got into is bigger, and therefore, the lower end of broken careless cutter and threshing cylinder spacing are bigger; And the further motion of broken grass; Its Outboard Sections is cut off, and needs gradually to incised, and therefore the spacing between broken careless cutter and the threshing cylinder begins to diminish gradually from the lower end.Broken careless cutter is located at the top of the relative side of threshing chamber charging aperture, promptly sawtooth one side down, the broken grass that produces in the course of the work all leaves broken careless cutter under the drive of gravity and threshing cylinder, can not drop on broken careless cutter, causes card careless.The oversize partial invalidity sawtooth that has of this broken careless cutter causes waste, has also increased the friction between straw, stalk and the sawtooth simultaneously, makes its energy consumption increase; And if broken careless cutter is too short, then cause the pressure of sawtooth excessive, make it impaired easily, through accurate Calculation and test of many times, the length of broken careless cutter is to be prone at 1/6 to 1/4 of threshing cylinder girth.
As preferably, the circular arc of described broken careless cutter sawtooth one side place radius of a circle be threshing cylinder radius 1.2-1.5 doubly.If the circular arc of broken careless cutter sawtooth one side place radius of a circle is littler then a large amount of stalks can occur or straw is beaten the problem at the side of broken careless cutter than the radius of threshing stream tube; This radius is excessive then can be occurred in use; Broken careless cutter is too small to the pressure of stalk or straw, thereby makes the bad problem of effect of cutting off.
As preferably, the minimum radial distance of described broken careless cutter lower end and threshing tooth is 5-30mm, and broken careless cutter upper end is 10-30mm with the radial distance of threshing cylinder.Broken careless cutter lower end and the minimum radial distance of threshing tooth are crossed the smallest end that conference causes broken careless cutter and can not be contacted with stalk or straw at work; Thereby cause the problem of the partial invalidity of the knife edge; If broken careless cutter upper end is too small then can cause knife edge end excessive to the pressure of stalk or straw with the radial distance of threshing cylinder, increase energy consumption.
As preferably, described broken careless cutter is the double blade structure, and two blades are arranged side by side, and links to each other through contiguous block.At work, a side of most stalk or straw contacts with two blades simultaneously, and opposite side is supported by the threshing tooth between two cuttves are seen, this mode can realize cutting more smoothly.
As preferably, said broken careless cutter links to each other with threshing chamber through described contiguous block, is provided with the adjustment piece between contiguous block and the threshing chamber.This adjustment piece can be used to adjust broken careless cutter angle, with the distance of threshing cylinder.
The beneficial effect that brings of the present invention is, solved the existing in prior technology grass-smashing reamer and damaged easily, and energy consumption is bigger; Rice straw is difficult for cutting off; Occur technical problems such as obstruction easily, realized a kind of grass-smashing reamer long service life, at the bottom of the energy consumption; Cutting thoroughly is not prone to the threshing grass chopper structure of the half-feed combine harvester of obstruction.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present invention;
Accompanying drawing 2 is structural representations of broken careless cutter of the present invention.
Embodiment
Pass through embodiment below, and combine accompanying drawing, do further bright specifically technical scheme of the present invention.
Embodiment: like Fig. 1, shown in Figure 2; The present invention is a kind of threshing grass chopper structure of half-feed combine harvester, comprises threshing chamber 1, threshing cylinder 2 and is located at the broken careless cutter 4 in the threshing chamber, and described broken careless cutter 4 is the double blade structure; Two blades 41 are arranged side by side; And continuous through contiguous block 42, broken careless cutter 4 links to each other with threshing chamber 1 through described contiguous block 42, is provided with adjustment piece 6 between contiguous block 42 and the threshing chamber.Described broken careless cutter 4 is located at the top of the relative side of threshing chamber charging aperture; Broken careless cutter 4 is the domes serrated knife, and its sawtooth 5 one sides are circular arc, and the circular arc of broken careless cutter sawtooth one side place radius of a circle is 1.3 times of radius of threshing cylinder; And sawtooth one side of broken careless cutter is relative with threshing cylinder; Serrated face is in the spacing of threshing tooth, and the arc length of described sawtooth one side is 1/5 of a threshing cylinder girth, and the lower end of broken careless cutter and threshing cylinder spacing are greater than the spacing of broken careless cutter upper end with threshing cylinder; The minimum radial distance of broken careless cutter lower end and threshing tooth 3 is 15mm, and broken careless cutter upper end is 15mm with the radial distance of threshing cylinder.
In the threshing course of the separating mechanism of semi-feeding type; Have a certain amount of straw and stalk and fall in the threshing chamber, these straw and stalk rotate under the drive of threshing tooth, when turning to the position of grass-smashing reamer; The following end in contact of straw and stalk and grass-smashing reamer; And under the further drive of threshing tooth, straw and stalk and grass-smashing reamer take place to slide relatively, and straw and stalk are constantly cut off under the effect of grass-smashing reamer.Because straw and stalk are in sliding process; Constantly cut off; Therefore smaller to the impact meeting of grass-smashing reamer, and straw and stalk can in this process, be cut more thorough, thereby the careless problem of card can not appear; Because the cutting process of this sliding type is gone up the requirement of cutting force, can save a large amount of energy consumptions again.Broken careless cutter of the present invention is when work; Amount when straw and stalk have just got into is bigger, and therefore, the lower end of broken careless cutter and threshing cylinder spacing are bigger; And the further motion of broken grass; Its Outboard Sections is cut off, and needs gradually to incised, and therefore the spacing between broken careless cutter and the threshing cylinder begins to diminish gradually from the lower end.Broken careless cutter is located at the top of the relative side of threshing chamber charging aperture, promptly sawtooth one side down, the broken grass that produces in the course of the work all leaves broken careless cutter under the drive of gravity and threshing cylinder, can not drop on broken careless cutter, causes card careless.The oversize partial invalidity sawtooth that has of this broken careless cutter causes waste, has also increased the friction between straw, stalk and the sawtooth simultaneously, makes its energy consumption increase; And if broken careless cutter is too short, then cause the pressure of sawtooth excessive, make it impaired easily.
So the present invention has long service life, at the bottom of the energy consumption, characteristic such as cutting thoroughly is not prone to obstruction, and is easy for installation.
Claims (4)
1. the threshing grass chopper structure of a half-feed combine harvester; Comprise threshing chamber (1), threshing cylinder (2) and be located at the broken careless cutter (4) in the threshing chamber; It is characterized in that described broken careless cutter (4) is located at the top of the relative side of threshing chamber (1) charging aperture; Broken careless cutter (4) is the domes serrated knife; Its sawtooth (5) one sides are circular arc, and sawtooth one side of broken careless cutter (4) is relative with threshing cylinder (2), and serrated face is in the spacing of threshing tooth (3); The arc length of described sawtooth (5) one sides is 1/6 to 1/4 of threshing cylinder (a 2) girth, and the lower end of broken careless cutter (4) and threshing cylinder (2) spacing are greater than the spacing of broken careless cutter (4) upper end with threshing cylinder (2).
2. the threshing grass chopper structure of half-feed combine harvester according to claim 1, the circular arc place radius of a circle that it is characterized in that described broken careless cutter sawtooth (5) one sides be threshing cylinder (2) radius 1.2-1.5 doubly.
3. the threshing grass chopper structure of half-feed combine harvester according to claim 1 and 2 is characterized in that described broken careless cutter is the double blade structure, and two blades (41) are arranged side by side, and links to each other through contiguous block (42).
4. the threshing grass chopper structure of half-feed combine harvester according to claim 3 is characterized in that said broken careless cutter links to each other with threshing chamber through described contiguous block, is provided with adjustment piece (6) between contiguous block and the threshing chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110020492 CN102119608B (en) | 2011-01-18 | 2011-01-18 | Threshing grass-smashing mechanism for half-feeding type combine harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110020492 CN102119608B (en) | 2011-01-18 | 2011-01-18 | Threshing grass-smashing mechanism for half-feeding type combine harvester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102119608A CN102119608A (en) | 2011-07-13 |
| CN102119608B true CN102119608B (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110020492 Expired - Fee Related CN102119608B (en) | 2011-01-18 | 2011-01-18 | Threshing grass-smashing mechanism for half-feeding type combine harvester |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111903341B (en) * | 2020-08-13 | 2022-04-15 | 湖南农业大学 | Threshing cylinder and method for adjusting rotating speed during threshing by adopting same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1254495A (en) * | 1998-11-20 | 2000-05-31 | 李建营 | Multifunctional threshing-grinder |
| CN201260308Y (en) * | 2008-09-18 | 2009-06-24 | 绵阳市伊俊货厢改制有限公司 | Chaff threshing mill |
| CN201938108U (en) * | 2011-01-18 | 2011-08-24 | 莱恩农业装备有限公司 | Threshing and grass-chopping mechanism of half feeding type combine harvester |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5220796Y2 (en) * | 1972-12-13 | 1977-05-13 | ||
| JPS52122561A (en) * | 1976-04-08 | 1977-10-14 | Ishii Seisakusho | Straw cutter |
-
2011
- 2011-01-18 CN CN 201110020492 patent/CN102119608B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1254495A (en) * | 1998-11-20 | 2000-05-31 | 李建营 | Multifunctional threshing-grinder |
| CN201260308Y (en) * | 2008-09-18 | 2009-06-24 | 绵阳市伊俊货厢改制有限公司 | Chaff threshing mill |
| CN201938108U (en) * | 2011-01-18 | 2011-08-24 | 莱恩农业装备有限公司 | Threshing and grass-chopping mechanism of half feeding type combine harvester |
Non-Patent Citations (2)
| Title |
|---|
| JP昭52-122561A 1977.10.14 |
| JP昭和49-97495U 1974.08.22 |
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| CN102119608A (en) | 2011-07-13 |
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Denomination of invention: Threshing grass-smashing mechanism for half-feeding type combine harvester Effective date of registration: 20150916 Granted publication date: 20120725 Pledgee: Bank of Communications Ltd. Jinhua branch Pledgor: LION AGRICULTURAL EQUIPMENT Co.,Ltd. Registration number: 2015990000798 |
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Granted publication date: 20120725 Termination date: 20220118 |
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| CF01 | Termination of patent right due to non-payment of annual fee |