CN202551723U - Sorting screen of combine harvester - Google Patents
Sorting screen of combine harvester Download PDFInfo
- Publication number
- CN202551723U CN202551723U CN2012200416865U CN201220041686U CN202551723U CN 202551723 U CN202551723 U CN 202551723U CN 2012200416865 U CN2012200416865 U CN 2012200416865U CN 201220041686 U CN201220041686 U CN 201220041686U CN 202551723 U CN202551723 U CN 202551723U
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- screen
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- sorting
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- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 238000004140 cleaning Methods 0.000 claims description 18
- 238000007747 plating Methods 0.000 claims description 8
- 241000251169 Alopias vulpinus Species 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 2
- 235000013339 cereals Nutrition 0.000 description 35
- 239000012535 impurity Substances 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 238000003306 harvesting Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- 241000283153 Cetacea Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000009288 screen filtration Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model discloses a sorting screen of a combine harvester. The sorting screen comprises a screen body, an eccentric driving mechanism and sliding mechanisms, wherein the screen body comprises a screen rack, an upper grid screen, a lower grid screen, a corrugated plate and a plurality of sorting baffles; the eccentric driving mechanism is arranged below one end of the screen body and comprises a crankshaft, a pair of connecting boards and a pair of bearing seats, two ends of the crankshaft are supported in the pair of bearing seats respectively through bearings, the neck of the crankshaft is fixedly connected with the lower ends of the pair of connecting boards respectively, the upper ends of the pair connecting boards are connected with the lower portions of front and back sides of the screen rack respectively; and the sliding mechanisms are symmetrically arranged on two sides of the other end of the screen body, and each sliding mechanism comprises a sliding seat and rollers supported on front and back sides of the screen rack and embedded into the sliding seat. The sorting screen has the advantages that the structure is simple and compact; threshed grains fall onto the whole screen surface and flow from left to right; the screen body on the left and right sides is evenly stressed, not easy to damage, small in size and large in sorting area; and the whole weight of the harvester is greatly reduced, reliability of the whole harvester is improved, sorting effect of grains is good, and the efficiency is high.
Description
Technical field
The utility model relates to the screening plant of the rear cereal of a kind of combine harvesting, and especially a kind of side-to-side vibrations formula sorting screen, belongs to agricultural machinery technological field.
Background technology
Sorting screen is the vitals of combine, in grain header, play the effect of screening, cleaning cereal, its operation principle is: the vibration by sieve nest is the grain of threshing, stalk layering, then pass through screen filtration, under fan action, the foreign material such as dust, little stalk are blown away, thereby realize grain cleaning simultaneously.For making cereal layered filtration abundant, reach the best and clean effect, require sorting screen to clean that area is large, vibration frequency is high.Sorting screen on existing combine is porpoise formula, in grain cleaning process, on compass screen surface, cereal flows from front to back, sorting screen is more at material inlet port place, cause sorting screen left and right discontinuity equalization, sorting screen very easily damages, and sorting screen left and right live load difference has also been aggravated very greatly the damage of sorting screen.In addition, on compass screen surface, material is inhomogeneous, and when grain header is turned, the cereal on compass screen surface easily produces stifled long-pending phenomenon, and the face of cleaning of sorting screen is not fully used, and greatly reduces grain cleaning effect.In order reaching, to clean preferably effect, conventionally to take the mode that lengthens sorting screen to strengthen the face of cleaning at present, but such structure causes grain header length dimension to lengthen, machine volume strengthens, weight weightening finish, and reliability reduces, and cost increases.
Summary of the invention
The purpose of this utility model be to provide a kind of simple and compact for structure, volume is little, lightweight, clean effective cleaning sieve for combined harvester.
The utility model is achieved by the following technical programs:
A kind of cleaning sieve for combined harvester, comprise sieve nest, be arranged on sieve nest one end below eccentric drive mechanism, be symmetricly set on the slide mechanism of sieve nest other end both sides, described sieve nest comprises screen frame (unit), be positioned at screen frame (unit) middle part online diagrid, be arranged on online diagrid below and be positioned at screen frame (unit) bottom off line diagrid, be arranged on the corrugated plating of online diagrid one side, online diagrid, off line diagrid, corrugated plating both sides are fixedly connected with screen frame (unit) two inner sides respectively, and baffle plate is cleaned along being laterally evenly interval with several piece in online diagrid top; Described eccentric drive mechanism comprises bent axle, a pair of connecting plate and pair of bearing, crankshaft two end is bearing in pair of bearing by bearing respectively, maneton is fixedly connected with a pair of connecting plate lower end respectively, and a pair of connecting plate upper end is fixedly connected with side lower part before and after screen frame (unit) respectively; Described slide mechanism comprises the sliding seat being fixedly connected with thresher frame, the roller that is bearing in respectively screen frame (unit) front and back side by axle, and described roller is embedded in sliding seat.
The purpose of this utility model can also further realize by following technical measures.
Aforesaid cleaning sieve for combined harvester, wherein said sliding seat is provided with U-shaped groove, and described roller is embedded in U-shaped groove.
Aforesaid cleaning sieve for combined harvester, wherein said online diagrid sieve aperture is greater than off line diagrid sieve aperture.
The utility model is simple and compact for structure, bent axle, sieve nest and roller form slider-crank mechanism, under the driving of eccentric drive mechanism, sieve nest is equivalent to the connecting rod of translation and makes high frequency left and right double vibrations, the roller of sieve nest other end both sides is along slide reciprocating rolling, and the cereal after threshing drops on whole compass screen surface and flows from left to right, and the sieve nest left and right sides is stressed evenly, not fragile, extended service life of sieve nest.Sieve nest volume is little, it is large to clean area, greatly reduces grain header complete machine weight, improved grain header whole aircraft reliability, reduced manufacturing cost.Grain cleaning is effective, and cleaning efficiency is high, and online diagrid top arranges several piece and cleans baffle plate, and in the time of can effectively preventing grain header turning, stifled long-pending phenomenon occurs cereal.
Advantage and disadvantage of the present utility model, the non-limitative illustration by preferred embodiment below is for illustration and explanation, and these embodiment, only provide as an example with reference to accompanying drawing.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of combine harvesting;
Fig. 2 structural representation of the present utility model;
Fig. 3 is the vertical view of Fig. 2.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1, be the mobile direction of crop, crop as single arrow direction is transported to sheller unit 6 by conveying plant 5, completes the separated of grain and stem stalk, by tentatively cleaning of notch board 61 after reaping apparatus 4 harvestings.The impurity such as the little stem stalk of grain and part fall on sieve nest 1 of the present utility model and further screen, at impurity such as grain and the little stem stalks of part, fall into process, the blower fan (not shown in FIG.) being positioned at outside sieve nest 1 one end carries out selection by winnowing to the grain falling and the little stem stalk of part, and double-head arrow is depicted as the direction of the side-to-side vibrations of sieve nest 1.
As Fig. 2, shown in Fig. 3, the utility model comprises sieve nest 1, be arranged on the eccentric drive mechanism 2 of below, sieve nest one end, be symmetricly set on the slide mechanism 3 of sieve nest 1 other end both sides, sieve nest 1 comprises screen frame (unit) 11, be positioned at the online diagrid 12 at screen frame (unit) 11 middle parts, be arranged on online diagrid below and be positioned at the off line diagrid 13 of screen frame (unit) bottom, be arranged on the corrugated plating 14 of online diagrid one side, online diagrid 12, off line diagrid 13 both sides are fixedly connected with screen frame (unit) 11 both sides by a plurality of bolts respectively, online diagrid 12 sieve apertures are greater than the sieve aperture of off line diagrid 13, be conducive to hierarchical screening grain, corrugated plating 14 both sides are fixed on screen frame (unit) 11.Online diagrid 12 tops are installed with 3 along laterally even interval and clean baffle plate 15, and while preventing that combine from turning, the cereal on compass screen surface is stifled long-pending under effect of inertia.
Eccentric drive mechanism 2 comprises bent axle 21, a pair of connecting plate 22 and pair of bearing 23, and bent axle 21 two ends are bearing in pair of bearing 23 by bearing respectively, and bearing block 23 is fixed in thresher frame.Maneton 211 is fixedly connected with a pair of connecting plate 22 lower ends respectively, and a pair of connecting plate 22 upper ends are fixedly connected with screen frame (unit) 11 front and back side lower parts respectively by several screws.
Slide mechanism 3 comprises the sliding seat 31 being fixedly connected with thresher frame, the roller 32 that is bearing in respectively screen frame (unit) 11 front and back sides by axle; sliding seat 31 is provided with U-shaped groove 311; roller 32 is rolling bearing; be embedded in U-shaped groove 311; can reciprocatingly slide along sliding seat 31, sliding seat 31 is separately fixed at the both sides, front and back of thresher frame.
While cleaning cereal, bent axle 21 is under the driving of engine of combine harvester power, sieve nest 1 is equivalent to the connecting rod of translation and makes high frequency left and right double vibrations, the roller 32 of sieve nest 1 other end both sides is along sliding seat 31 slide reciprocating rollings, cereal after threshing drops on whole compass screen surface and flows from left to right, cereal is after threshing separation, grain, short stalk, the impurity such as dust are fallen on corrugated plating 14, owing to being subject to effect of vibration, grain, short stalk, the impurity layerings such as dust, corrugated plating 14 promotes cereal and moves to right, cereal enters online diagrid 12, the little stalk of grain and small part drops down onto on the off line diagrid 13 of below by the mesh of online diagrid 12, grain leaches by the mesh of off line diagrid 13, the little stalk of grain and small part is in the process falling, under the effect of a crosswind machine wind-force, little stalk, the impurity such as dust are blown sieve nest 1, thereby clean out clean grain.
In addition to the implementation, the utility model can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.
Claims (3)
1. a cleaning sieve for combined harvester, it is characterized in that: comprise sieve nest, be arranged on the eccentric drive mechanism of below, sieve nest one end, be symmetricly set on the slide mechanism of sieve nest other end both sides, described sieve nest comprises screen frame (unit), be positioned at the online diagrid at screen frame (unit) middle part, be arranged on online diagrid below and be positioned at the off line diagrid of screen frame (unit) bottom, be arranged on the corrugated plating of online diagrid one side, online diagrid, off line diagrid, corrugated plating both sides are fixedly connected with screen frame (unit) two inner sides respectively, baffle plate is cleaned along being laterally evenly interval with several piece in online diagrid top, described eccentric drive mechanism comprises bent axle, a pair of connecting plate and pair of bearing, crankshaft two end is bearing in pair of bearing by bearing respectively, maneton is fixedly connected with a pair of connecting plate lower end respectively, a pair of connecting plate upper end is fixedly connected with side lower part before and after screen frame (unit) respectively, described slide mechanism comprises the sliding seat being fixedly connected with thresher frame, the roller that is bearing in respectively screen frame (unit) front and back side by axle, and described roller is embedded in sliding seat.
2. cleaning sieve for combined harvester as claimed in claim 1, is characterized in that: described sliding seat is provided with U-shaped groove, and described roller is embedded in U-shaped groove.
3. cleaning sieve for combined harvester as claimed in claim 1, is characterized in that: described online diagrid sieve aperture is greater than off line diagrid sieve aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200416865U CN202551723U (en) | 2012-02-09 | 2012-02-09 | Sorting screen of combine harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200416865U CN202551723U (en) | 2012-02-09 | 2012-02-09 | Sorting screen of combine harvester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202551723U true CN202551723U (en) | 2012-11-28 |
Family
ID=47201441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200416865U Expired - Fee Related CN202551723U (en) | 2012-02-09 | 2012-02-09 | Sorting screen of combine harvester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202551723U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102550227A (en) * | 2012-02-09 | 2012-07-11 | 江苏沃得农业机械有限公司 | Sorting screen of combine harvester |
| CN113207447A (en) * | 2021-05-13 | 2021-08-06 | 农业农村部南京农业机械化研究所 | Cleaning mechanism for edible bean combine harvester and working method thereof |
-
2012
- 2012-02-09 CN CN2012200416865U patent/CN202551723U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102550227A (en) * | 2012-02-09 | 2012-07-11 | 江苏沃得农业机械有限公司 | Sorting screen of combine harvester |
| CN113207447A (en) * | 2021-05-13 | 2021-08-06 | 农业农村部南京农业机械化研究所 | Cleaning mechanism for edible bean combine harvester and working method thereof |
| CN113207447B (en) * | 2021-05-13 | 2021-11-16 | 农业农村部南京农业机械化研究所 | Cleaning mechanism for edible bean combine harvester and working method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20140209 |