CN203884243U - Concave plate sieve of combined harvester - Google Patents
Concave plate sieve of combined harvester Download PDFInfo
- Publication number
- CN203884243U CN203884243U CN201420100990.1U CN201420100990U CN203884243U CN 203884243 U CN203884243 U CN 203884243U CN 201420100990 U CN201420100990 U CN 201420100990U CN 203884243 U CN203884243 U CN 203884243U
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- China
- Prior art keywords
- sieve
- iron plate
- punching iron
- plate sieve
- threshing
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model provides a concave plate sieve of a combined harvester. The concave plate sieve is arranged on a threshing rack, is positioned below a threshing roller and above a vibration sieve and comprises a front grid sieve arranged below a feeding drum and a rear punching iron plate sieve arranged below the rear end of the threshing roller; the grid sieve and the punching iron plate sieve are arranged on the threshing rack along the length direction; the front grid sieve is formed by symmetrically connecting two grid welding-on pieces through two pin shafts at the lower side along the width direction; the rear iron plate punching sieve is formed by symmetrically connecting two punching iron plate welding-on pieces by two pin shafts at the lower side along the width direction. According to the concave plate sieve of the combined harvester, generation of massive smashed straws is reduced and the straws fall into a sorting sieve surface by the concave plate sieve, so the sorting difficulty is reduced, the resistance of the straws to the threshing roller is reduced and the energy consumption is reduced.
Description
Technical field
The application relates to a kind of concave grate of combine.
Background technology
Concave grate is a kind of vitals in combine, conventionally has two kinds of monoblock type and segmenteds, monoblock type concave grate wearing and tearing need to change time often integral replacing so cost higher; Chinese utility model patent CN202958192U discloses a kind of segmented concave grate of all feeding-in combine, with reference to accompanying drawing 1, because segmented concave grate is convenient to dismounting, has therefore reduced replacement cost.In threshing course for coordinate better threshing cylinder by seed from crop under threshing, hinder again longer crushing straw passes through simultaneously, prior art conventionally adopts longitudinal steel plate punching and is horizontally through the lattice structure of this hole steel wire seam, sometimes from easy to maintenance, consider with the ability of maintenance cost or separated seed and stalk, before and after conventionally again concave grate being designed to, two sections of grid screens combine.Though the notch board of lattice structure can well coordinate threshing cylinder to carry out threshing, also can produce a large amount of crushing straws and fall into sorting screen surface, thereby greatly increase the intractability of sorting screen, cause a seed loss; Lattice structure makes stalk larger to threshing cylinder resistance simultaneously, and energy consumption is larger.
Summary of the invention
The utility model is intended to overcome above-mentioned defect, reduces a large amount of crushing straws and produces and fall into sorting screen surface by concave grate, thereby reduce, cleans difficulty, reduces stalk to the low energy consumption of threshing cylinder resistance drop simultaneously.The utility model provides a kind of concave grate of combine, particularly, it is arranged in threshing frame, position is in the top of threshing cylinder below and reciprocating sieve, and it comprises the rear punching iron plate sieve 34B two parts that are arranged on the front grid screen 34A of feeding cylinder below and are arranged on below, detachment roller rear end; Grid screen and punching iron plate sieve are arranged in threshing frame along its length, and front grid screen is formed by connecting by the downside two bearing pin 34c1 that pass through of two grid soldering member 34a1 broad ways symmetries; Rear punching iron plate sieve 34B is that the downside two bearing pin 34c1 that pass through by two punching iron plate soldering member 34b1 broad ways symmetries are formed by connecting.
Preferably, the Area Ratio of described grid screen and punching iron plate sieve is 1: 1 to 2: 1.
Preferably, described punching iron plate sieve aperture is circumferentially in column, axially in a row, but the mutual Heterogeneous Permutation in adjacent column or adjacent row's hole.
Preferably, front and back divide two parts all the portion's section more than two, to consist of respectively.Two-part a plurality of the sections in front and back connect according to identical direction, or all according to width, connect successively, or all according to length direction, connect successively.
Preferably, two-part a plurality of the sections in front and back connect according to different directions, and a plurality of sections of forward part connect successively according to width, and each section of rear section connects successively according to length direction, or contrary.
The situation different with the operating environment at concave grate rear portion according to the front portion of threshing concave board sieve of the present utility model, adopt the Proper Match combination of front grid screen and rear punching iron plate sieve, the sieve plate of giving full play to these two kinds of different sieve aperture forms advantage separately, makes to adopt single grid screen well format concave grate to be difficult to take into account the conflicting problem such as the aspect that solves threshing performance, percentage of damage, separating power, service life and maintenance cost and has obtained good solution.And because of arranging of the alternative grid screen in the past of rear portion punching iron plate sieve, reduced importing rear portion and substantially completed the resistance of the stalk of threshing to threshing cylinder, thereby reduced the work energy consumption of separating mechanism.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of concave grate of the prior art;
Fig. 2 is according to concave grate schematic diagram of the present utility model;
Fig. 3 is the concave grate left part partial schematic diagram according to an embodiment of the utility model;
Fig. 4 is the concave grate left part partial schematic diagram according to another embodiment of the utility model.
Embodiment
As Fig. 2, the combined type concave plate sieve that the utility model adopts punching iron plate sieve 34B and grid screen 34A to combine, the steel wire that this lattice structure for example can adopt longitudinal steel plate punching and be horizontally through this hole carries out seam formation; Or can adopt a plurality of longitudinal bar shapeds curved wire that spacing distance has the steel plate in hole and is horizontally through this hole in accordance with regulations to carry out seam and form lattice-shaped.
According to concave grate of the present utility model, be arranged in threshing frame, its position is in the top of threshing cylinder below and reciprocating sieve, and it comprises the rear punching iron plate sieve 34B two parts that are arranged on the front grid screen 34A of feeding cylinder below and are arranged on below, detachment roller rear end; Grid screen 34A and punching iron plate sieve 34B are arranged in threshing frame along its length, and front grid screen 34A is formed by connecting by the downside two bearing pin 34c1 that pass through of two grid soldering member 34a1 broad ways symmetries; After same, punching iron plate sieve 34B is also that the downside two bearing pin 34c1 that pass through by two punching iron plate soldering member 34b1 broad ways symmetries are formed by connecting; Preferably, the Area Ratio of described grid screen and punching iron plate sieve is 1: 1 to 2: 1, preferably 3: 2, the sieve aperture of described punching iron plate sieve is circle or elongated hole, sieve aperture in length and breadth direction is all arranged in a straight line, and the hole between each row of each row does not exist intersection dislocation each other, as shown in Figure 4.Preferably, described punching iron plate sieve aperture is circumferentially in column, axially in a row, but the mutual Heterogeneous Permutation in adjacent column or adjacent row's hole improves the saturating rate in hole, as shown in Figure 3.Preferably, described grid screen compass screen surface and punching iron plate sieve compass screen surface, axial front and back side by side correspondence are arranged on same circumference.
In another embodiment, minute two parts before and after described concave grate also can adopt, forward part adopts a whole grid screen and rear section to adopt whole punching iron plate sieve to combine (being that width is all regardless of two);
In another embodiment, minute two parts before and after described concave grate also can adopt, forward part adopts a whole grid screen (width is regardless of two) and rear section to adopt two punching iron plate sieves to combine;
In another embodiment, forward part adopts two grid sieves and rear section to adopt whole punching iron plate sieve to combine (width is regardless of two).
In another embodiment, front and back divide two parts all the portion's section more than two, to consist of respectively.Two-part a plurality of the sections in front and back connect according to identical direction, or all according to width, connect successively, or all according to length direction, connect successively; Preferably, two-part a plurality of the sections in front and back connect according to different directions, and a plurality of sections of forward part connect successively according to width, and each section of rear section connects successively according to length direction, or contrary.A plurality of sections the further easy replaceability that strengthened is set.
Because adopting rear punching iron plate sieve 34B, the utility model replaced rear grid screen in the past, make when anterior grid screen 34A completes the stalk arrival rear portion punching iron plate sieve 34B of threshing substantially, trafficability characteristic improves, reducing crushing straw further produces, also reduce stalk to threshing cylinder resistance, thereby reduced energy consumption; Reduce longer crushing straw simultaneously and fallen into sorting screen surface possibility, reduced seed cleaning difficulty, after making to clean, entered silo cereal cleaner.
Although the utility model discloses as above with preferred embodiment; so it is not in order to limit the utility model; those skilled in the art are not within departing from spirit and scope of the present utility model; can carry out suitable modification and change, therefore protection domain of the present utility model is when being as the criterion of defining depending on claim.
Claims (5)
1. the concave grate of a combine, it is arranged in threshing frame, position is in the top of threshing cylinder below and reciprocating sieve, and it comprises rear punching iron plate sieve (34B) two parts that are arranged on the front grid screen (34A) of feeding cylinder below and are arranged on below, detachment roller rear end; Grid screen and punching iron plate sieve are arranged in threshing frame along its length, and front grid screen is formed by connecting by downside two bearing pins (34c1) that pass through of two grid soldering members (34a1) broad ways symmetry; Rear punching iron plate sieve (34B) is that downside two bearing pins (34c1) that pass through by two punching iron plate soldering members (34b1) broad ways symmetry are formed by connecting.
2. the concave grate of combine according to claim 1, is characterized in that, the Area Ratio of described grid screen and punching iron plate sieve is 1: 1 to 2: 1.
3. the concave grate of combine according to claim 1, is characterized in that described punching iron plate sieve aperture is circumferentially in column, axially in a row, but the mutual Heterogeneous Permutation in adjacent column or adjacent row's hole.
4. according to the concave grate of the combine described in aforementioned any one claim, before and after it is characterized in that, minute two parts all consist of the portion's section more than two respectively, two-part a plurality of the sections in front and back connect according to identical direction, or all according to width, connect successively, or all according to length direction, connect successively.
5. the concave grate of combine according to claim 4, before and after it is characterized in that, two-part a plurality of sections connect according to different directions, a plurality of sections that are forward part connect successively according to width, and each section of rear section connects successively according to length direction, or contrary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420100990.1U CN203884243U (en) | 2014-03-07 | 2014-03-07 | Concave plate sieve of combined harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420100990.1U CN203884243U (en) | 2014-03-07 | 2014-03-07 | Concave plate sieve of combined harvester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203884243U true CN203884243U (en) | 2014-10-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420100990.1U Expired - Fee Related CN203884243U (en) | 2014-03-07 | 2014-03-07 | Concave plate sieve of combined harvester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203884243U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103797987A (en) * | 2014-03-07 | 2014-05-21 | 星光农机股份有限公司 | Concave grid for combine harvester |
| CN106068955A (en) * | 2016-06-22 | 2016-11-09 | 河南瑞创通用机械制造有限公司 | A kind of threshing chamber notch board for harvester |
-
2014
- 2014-03-07 CN CN201420100990.1U patent/CN203884243U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103797987A (en) * | 2014-03-07 | 2014-05-21 | 星光农机股份有限公司 | Concave grid for combine harvester |
| CN106068955A (en) * | 2016-06-22 | 2016-11-09 | 河南瑞创通用机械制造有限公司 | A kind of threshing chamber notch board for harvester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20190307 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |