CN115591770A - Unequal-height fish scale screen combined type cleaning screen structure - Google Patents
Unequal-height fish scale screen combined type cleaning screen structure Download PDFInfo
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- CN115591770A CN115591770A CN202211186909.1A CN202211186909A CN115591770A CN 115591770 A CN115591770 A CN 115591770A CN 202211186909 A CN202211186909 A CN 202211186909A CN 115591770 A CN115591770 A CN 115591770A
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- Prior art keywords
- fish scale
- screen
- short
- sieve
- long
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
Abstract
The invention relates to a combined type cleaning sieve structure of a variable-height fish scale sieve, and relates to the technical field of cleaning sieves. Comprises short fish scale sieve sheets, long fish scale sieve sheets, a sieve box, a crank shaft, a fixed seat, a pulling plate and an angle adjusting component; the crank shaft is hinged to two side walls of the screen box, the short fish scale screen pieces and the long fish scale screen pieces are welded on the crank shaft at intervals, the bottom end of the crank shaft is hinged to the pulling plate through a fixing seat, and two ends of the angle adjusting assembly are respectively connected with the pulling plate and the screen box and used for adjusting the angles of the short fish scale screen pieces and the long fish scale screen pieces.
Description
Technical Field
The invention relates to the technical field of cleaning sieves, in particular to a combined cleaning sieve structure of a scaly sieve with unequal heights.
Background
The fish scale cleaning sieve is an important working part of a grain harvester, the thickness of oversize materials on the cleaning sieve tends to increase along with the increase of the feeding amount of the harvester, and the traditional high-altitude fish scale sieve has the characteristic of smooth sieve surface, so that the distance of grains passing along the sieve surface is shortened, the probability of the grains passing through the sieve surface is reduced, the problem that the oversize materials block sieve pores can be caused in serious conditions, and the cleaning loss of the harvester is increased finally. Therefore, in order to meet the cleaning requirements of high efficiency and low loss of a harvester with large feeding amount, how to provide a combination of unequal height scall sieves which can improve the fluffy degree of oversize products, prolong the movement distance of the oversize products and increase the probability of grains passing through the sieve surface is a technical problem which needs to be solved urgently by technical personnel in the field.
Disclosure of Invention
The invention mainly aims to provide a combined type cleaning sieve structure of a fish scale sieve with unequal heights, so as to solve the problems.
In order to achieve the above object, the present invention provides a combined type sifter structure of unequal height fish scales, comprising: short fish scale sieve sheets, long fish scale sieve sheets, a sieve box, a crank shaft, a fixed seat, a pulling plate and an angle adjusting component; the short fish scale sieve sheets and the long fish scale sieve sheets are welded on the crank shaft at intervals, the bottom end of the crank shaft is hinged on the pull plate through the fixing seat, and two ends of the angle adjusting assembly are respectively connected with the pull plate and the sieve box and used for adjusting the angles of the short fish scale sieve sheets and the long fish scale sieve sheets.
Furthermore, the angle adjusting assembly comprises a sieve sheet angle adjusting pull rod, a fastening nut, an adjusting nut and an adjusting seat; the adjusting seat is fixedly connected to the tail end of the screen box, one end of the screen sheet angle adjusting pull rod is connected with the pull plate through a fastening nut, and the other end of the screen sheet angle adjusting pull rod is connected with the adjusting seat through an adjusting nut.
Furthermore, the short fish scale sieve sheets and the long fish scale sieve sheets are both in a tooth-shaped distribution structure, and the ratio of the height h1 of the upper parts of the long fish scale sieve sheets to the height h3 of the upper parts of the short fish scale sieve sheets is 1/3-1/2.
Furthermore, the fish scale device also comprises a middle fish scale screen sheet, wherein the middle fish scale screen sheet is welded on the crank shaft and is positioned between the short fish scale screen sheet and the long fish scale screen sheet.
Further, the short fish scale sieve sheets, the medium fish scale sieve sheets and the long fish scale sieve sheets are all in a tooth-shaped distribution structure, and the ratio of the height h1 of the upper parts of the long fish scale sieve sheets to the height h2 of the upper parts of the medium fish scale sieve sheets to the height h2 of the upper parts of the short fish scale sieve sheets is as follows: h1: h2: h3= 3.
Furthermore, the crank shafts are hinged to two side walls of the screen box, all shaft holes for mounting the crank shafts on the screen box are located on the same plane, and the hole distances of the adjacent shaft holes are equal.
The invention has the beneficial effects that:
after the unequal-height fish scale sieve sheets are adopted, the height difference of oversize products in the falling process is increased, the fluffiness of the oversize products is enhanced, and the probability that grains penetrate through straws and sieve surfaces is improved; because the screen surface is in a fish scale screen sheet structure with unequal heights, the movement track of oversize materials is prolonged, and the probability of grains passing through the screen surface is increased; by integrating the characteristics, the processing capacity of the cleaning system for cleaning the large feeding amount of the cleaning load is improved, the cleaning loss in the operation process of the harvester is reduced, and the harvesting quality of the grains is improved.
Drawings
FIG. 1 is a schematic structural view of example 1 of the present invention;
FIG. 2 is a schematic structural view of embodiment 2 of the present invention;
FIG. 3 is a schematic structural diagram according to embodiment 3 of the present invention;
FIG. 4 is a schematic view of the construction of the fish scaly screen of the present invention;
FIG. 5 is a schematic view of a fish scale sheet according to the present invention;
FIG. 6 is a schematic view of the short fish-scale sieve sheet of the present invention;
fig. 7 is a schematic structural view of the crank shaft of the present invention.
Wherein, 1-short fish scale sieve sheet; 2-long fish scaly sieve sheet; 3-a sieve box; 4-crank shaft; 5-fixing the base; 6-pulling a plate; 7-sieve sheet angle adjusting pull rod; 8-fastening a nut; 9-adjusting the nut; 10-an adjusting seat; 11-medium fish scale sieve tablet.
Detailed Description
To achieve the above objects and advantages, the present invention provides a technical means and a structure thereof, which are described in detail with reference to the accompanying drawings.
Example 1
As shown in fig. 1, 4, 6 and 7, the present invention provides a combined scalping screen structure with unequal height, which comprises: short fish scale sieve sheets 1, long fish scale sieve sheets 2, a sieve box 3, a crank shaft 4, a fixed seat 5, a pulling plate 6 and an angle adjusting component; the bent crank shaft 4 is hinged to two side walls of the screen box 3, the short fish scale screen pieces 1 and the long fish scale screen pieces 2 are welded to the bent crank shaft 4 at intervals, the bottom end of the bent crank shaft 4 is hinged to the pulling plate 6 through the fixing seat 5, and the path of oversize materials passing along the screen surface is prolonged to the maximum extent. And two ends of the angle adjusting component are respectively connected with the pulling plate 6 and the screen box 3 and used for adjusting the angles of the short fish scale screen pieces 1 and the long fish scale screen pieces 2. The crank shafts 4 are hinged to two side walls of the screen box 3, all shaft holes for mounting the crank shafts 4 on the screen box 3 are located on the same plane, and the hole distances of the adjacent shaft holes are equal. The lower part of the crank shaft 4 is connected with the fixed seat 5 through a fixed shaft, the wheelbase of all the fixed shafts is equal to the hole pitch of the shaft holes on the sieve box 3, and all the fixed shafts are in hinged connection with the fixed seat 5.
The working principle of the embodiment is as follows:
the crank shaft, the side wall of the screen box and the pulling plate form a parallel four-bar mechanism, so that the adjustment process (pulling the pulling plate) can ensure that all screen sheet planes are in a parallel state, the equal opening degree among all screen sheets is ensured, and the grain cleaning quality (containing less impurities) is ensured; the sieve sheets are arranged in a staggered mode through the short fish scale sieve sheets and the long fish scale sieve sheets, so that the height difference of seed grains falling to the sieve surface is changed, the unequal-height fish scale sieve sheets are matched, a wavy sieve surface is formed, the fluffy degree of oversize products is enhanced, the motion trail of the oversize products on the sieve surface is prolonged, the probability that the seed grains penetrate through the screen surface and the shed products is increased, and the cleaning efficiency and quality are improved.
In this embodiment, the angle adjusting assembly comprises a sieve sheet angle adjusting pull rod 7, a fastening nut 8, an adjusting nut 9 and an adjusting seat 10; the adjusting seat 10 is fixedly connected to the tail end of the screen box 3, one end of the screen sheet angle adjusting pull rod 7 is connected with the pull plate 6 through a fastening nut 8, and the other end of the screen sheet angle adjusting pull rod is connected with the adjusting seat 10 through an adjusting nut 9.
The short fish scale sieve sheets 1 and the long fish scale sieve sheets 2 are both in a tooth-shaped distribution structure, and the ratio of the height h1 of the upper parts of the long fish scale sieve sheets 2 to the height h3 of the upper parts of the short fish scale sieve sheets 1 is 1/3-1/2.
The height h1: h3= 1/3-1/2, and the proportion mainly increases the fall of the long and short fish scale screen pieces (ensuring the fluffy degree of oversize materials), increases the wave length of the formed screen surface to the maximum extent, prolongs the contact time of the oversize materials and the screen surface, increases the probability of grains passing through the screen surface, and improves the cleaning efficiency.
Example 2
As shown in fig. 2, 4, 5, 6 and 7, the present embodiment is different from embodiment 1 in that: the embodiment further comprises a middle fish scale sheet 11, wherein the middle fish scale sheet 11 is welded on the crank shaft 4 and is positioned between the short fish scale sheet 1 and the long fish scale sheet 2. The long fish scale sieve sheets 2, the middle fish scale sieve sheets 11 and the short fish scale sieve sheets 1 are sequentially arranged from one side to the other side of the sieve box 3.
The short fish scale sieve sheets 1, the middle fish scale sieve sheets 11 and the long fish scale sieve sheets 2 are all in a tooth-shaped distribution structure, and the ratio of the height h1 of the upper parts of the long fish scale sieve sheets 2 to the height h2 of the upper parts of the middle fish scale sieve sheets 11 to the height h2 of the upper parts of the short fish scale sieve sheets 1 is as follows: h1: h2: h3= 3.
The proportion is mainly based on the above, the height difference of adjacent long fish scale sieve sheets and short fish scale sieve sheets is improved, the backflow of oversize products is enhanced, the cleaning time of the oversize products is further prolonged, and the cleaning loss is reduced.
Example 3
As shown in fig. 3, 4, 5, 6 and 7, the present embodiment is different from embodiment 1 in that: the embodiment further comprises a middle fish scale sheet 11, wherein the middle fish scale sheet 11 is welded on the crank shaft 4 and is positioned between the short fish scale sheet 1 and the long fish scale sheet 2. The long fish scale sieve sheets 2, the short fish scale sieve sheets 1 and the middle fish scale sieve sheets 11 are sequentially arranged from one side to the other side of the sieve box 3.
The short fish scale sieve sheets 1, the middle fish scale sieve sheets 11 and the long fish scale sieve sheets 2 are all in a tooth-shaped distribution structure, and the ratio of the height h1 of the upper parts of the long fish scale sieve sheets 2 to the height h2 of the upper parts of the middle fish scale sieve sheets 11 to the height h2 of the upper parts of the short fish scale sieve sheets 1 is as follows: h1: h2: h3= 3.
The embodiment aims to reduce the fall, improve the backward movement speed of oversize materials and improve the operation efficiency of the sorting screen.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (6)
1. The utility model provides a combined cleaning sieve structure of fish scale that varies height which characterized in that includes: short fish scale sieve sheets, long fish scale sieve sheets, a sieve box, a crank shaft, a fixed seat, a pulling plate and an angle adjusting component; the short fish scale sieve sheets and the long fish scale sieve sheets are welded on the crank shaft at intervals, the bottom end of the crank shaft is hinged on the pull plate through the fixing seat, and two ends of the angle adjusting assembly are respectively connected with the pull plate and the sieve box and used for adjusting the angles of the short fish scale sieve sheets and the long fish scale sieve sheets.
2. The unequal height combined type sifter screen structure of claim 1, wherein the angle adjusting assembly comprises a screen sheet angle adjusting pull rod, a fastening nut, an adjusting nut and an adjusting seat; the adjusting seat is fixedly connected to the tail end of the screen box, one end of the screen sheet angle adjusting pull rod is connected with the pull plate through a fastening nut, and the other end of the screen sheet angle adjusting pull rod is connected with the adjusting seat through an adjusting nut.
3. The combined type sifting screen structure of claim 1 or 2, wherein the short sifting screen pieces and the long sifting screen pieces are both in a tooth-shaped distribution structure, and the ratio of the height h1 of the upper parts of the long sifting screen pieces to the height h3 of the upper parts of the short sifting screen pieces is 1/3-1/2.
4. The combined scalping screen structure of claim 1 or 2, further comprising a middle scalping screen sheet welded on the crank shaft and located between the short scalping screen sheet and the long scalping screen sheet.
5. The combined scalping screen structure of claim 4, wherein the short scalping screen pieces, the middle scalping screen pieces and the long scalping screen pieces are all in a tooth-shaped distribution structure, and the ratio of the height h1 of the upper part of the long scalping screen pieces, the height h2 of the upper part of the middle scalping screen pieces and the height h2 of the upper part of the short scalping screen pieces is: h1: h2: h3= 3.
6. The combined type scalping screen structure of claim 1, wherein the crank shafts are hinged to two side walls of the screen box, all shaft holes on the screen box for mounting the crank shafts are located on the same plane, and the hole pitch of the adjacent shaft holes is equal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211186909.1A CN115591770A (en) | 2022-09-28 | 2022-09-28 | Unequal-height fish scale screen combined type cleaning screen structure |
| PCT/CN2023/087260 WO2024066287A1 (en) | 2022-09-28 | 2023-04-10 | Cleaning screen structure of combined chaffers with different heights |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211186909.1A CN115591770A (en) | 2022-09-28 | 2022-09-28 | Unequal-height fish scale screen combined type cleaning screen structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115591770A true CN115591770A (en) | 2023-01-13 |
Family
ID=84845538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211186909.1A Pending CN115591770A (en) | 2022-09-28 | 2022-09-28 | Unequal-height fish scale screen combined type cleaning screen structure |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115591770A (en) |
| WO (1) | WO2024066287A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024066287A1 (en) * | 2022-09-28 | 2024-04-04 | 山东理工大学 | Cleaning screen structure of combined chaffers with different heights |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0248091A1 (en) * | 1986-01-17 | 1987-12-09 | Deere & Company | Adjusting device for sieves |
| SU1464957A1 (en) * | 1987-07-27 | 1989-03-15 | Головное специализированное конструкторское бюро по комплексам зерноуборочных машин Производственного объединения "Ростсельмаш" | Cleaning unit for grain combine harvester |
| EP0629340A1 (en) * | 1993-06-14 | 1994-12-21 | New Holland Belgium N.V. | Harvester sieve opening indicator |
| CN103688684A (en) * | 2013-12-16 | 2014-04-02 | 江苏大学 | Adjusting device and adjusting method for grading sieve piece opening of combine harvester |
| US20170142904A1 (en) * | 2014-05-16 | 2017-05-25 | Cnh Industrial America Llc | Combine harvester cleaning system |
| CN212138466U (en) * | 2020-11-12 | 2020-12-15 | 雷沃重工股份有限公司 | Adjustable fish scale sieve, cleaning device and harvester |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206651057U (en) * | 2017-03-14 | 2017-11-21 | 农业部南京农业机械化研究所 | A kind of sorting screen |
| CN108029351A (en) * | 2018-01-19 | 2018-05-15 | 江苏沃得农业机械有限公司 | A kind of automatically controlled adjusting opening mechanism for harvester sorting screen |
| CN113019900B (en) * | 2021-03-16 | 2022-08-09 | 安徽聚力创新项目管理有限公司 | Electric adjusting device for multifunctional harvesting machinery vibrating screen |
| CN115591770A (en) * | 2022-09-28 | 2023-01-13 | 山东理工大学（Cn） | Unequal-height fish scale screen combined type cleaning screen structure |
-
2022
- 2022-09-28 CN CN202211186909.1A patent/CN115591770A/en active Pending
-
2023
- 2023-04-10 WO PCT/CN2023/087260 patent/WO2024066287A1/en unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0248091A1 (en) * | 1986-01-17 | 1987-12-09 | Deere & Company | Adjusting device for sieves |
| SU1464957A1 (en) * | 1987-07-27 | 1989-03-15 | Головное специализированное конструкторское бюро по комплексам зерноуборочных машин Производственного объединения "Ростсельмаш" | Cleaning unit for grain combine harvester |
| EP0629340A1 (en) * | 1993-06-14 | 1994-12-21 | New Holland Belgium N.V. | Harvester sieve opening indicator |
| CN103688684A (en) * | 2013-12-16 | 2014-04-02 | 江苏大学 | Adjusting device and adjusting method for grading sieve piece opening of combine harvester |
| US20170142904A1 (en) * | 2014-05-16 | 2017-05-25 | Cnh Industrial America Llc | Combine harvester cleaning system |
| CN212138466U (en) * | 2020-11-12 | 2020-12-15 | 雷沃重工股份有限公司 | Adjustable fish scale sieve, cleaning device and harvester |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024066287A1 (en) * | 2022-09-28 | 2024-04-04 | 山东理工大学 | Cleaning screen structure of combined chaffers with different heights |
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| Publication number | Publication date |
|---|---|
| WO2024066287A1 (en) | 2024-04-04 |
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