CN113875403A - Improve out concave plate structure of thing evenly distributed - Google Patents
Improve out concave plate structure of thing evenly distributed Download PDFInfo
- Publication number
- CN113875403A CN113875403A CN202111293929.4A CN202111293929A CN113875403A CN 113875403 A CN113875403 A CN 113875403A CN 202111293929 A CN202111293929 A CN 202111293929A CN 113875403 A CN113875403 A CN 113875403A
- Authority
- CN
- China
- Prior art keywords
- grid
- plate
- transmission gear
- positioning
- gear
- Prior art date
- 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.)
- Granted
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/18—Threshing devices
- A01F12/26—Multi-part threshing concaves
Abstract
The invention discloses a concave plate structure for improving uniform distribution of threshed objects, and relates to the technical field of longitudinal axial flow threshing equipment. The grid bar is arranged between the front grid plate and the rear grid plate and comprises a positioning grid bar and a separating grid bar, grid bar gears are sleeved on the positioning grid bar and the separating grid bar respectively, a transmission gear shaft is arranged on the front grid plate, a transmission gear is sleeved on the transmission gear shaft and meshed with the grid bar gears, two rows of inner gears and outer gears are arranged on the front grid plate along the circumferential direction and are respectively a transmission gear and the grid bar gears, and the transmission gear is arranged on the inner side of the grid bar gears. The concave plate structure provided by the invention can adjust the gaps between the grid bars of the concave plate under the condition of not replacing the concave plate, and obviously improves the distribution uniformity of threshed objects passing through the concave plate on a sorting screen after longitudinal axial flow threshing.
Description
Technical Field
The invention relates to the technical field of longitudinal axial flow threshing equipment, in particular to a concave plate structure for improving the uniform distribution of threshed objects.
Background
With the upsizing of grain harvesters, longitudinal axial flow threshing has become the mainstream technology of harvester development, but after longitudinal axial flow threshing, the threshed objects pass through gaps of grid bars of concave plates and move mainly along the tangential direction under the action of a threshing cylinder, so that the threshed objects are unevenly distributed on the lower cleaning sieve, and the problems of large cleaning loss or high impurity rate are caused.
The universalization development direction is the trend of large-scale harvester, and the concave plate realizes that crops thresh as cooperation threshing cylinder, the essential element of separation, when the different crops of results, need adjust the cylinder rotational speed, the concave plate structure, concave plate grid strip clearance need in time be changed according to different seed grain sizes, and in fact, it is very troublesome to adjust the concave plate in the harvester of current, if adopt the intaglio of different models simultaneously, then can lead to the rising of spare part expense, the nonadjustable problem in grid strip clearance of present concave plate needs to be solved urgently.
Disclosure of Invention
The invention mainly aims to provide a concave plate structure for improving the uniform distribution of stripping substances so as to solve the problems in the prior art.
A concave plate structure capable of improving uniform distribution of escaping substances comprises a front grid plate, a rear grid plate and grid strips, wherein the grid strips are arranged between the front grid plate and the rear grid plate and comprise positioning grid strips and separating grid strips, grid strip gears are sleeved on the positioning grid strips and the separating grid strips, a transmission gear shaft is arranged on the front grid plate, a transmission gear is sleeved on the transmission gear shaft and meshed with the grid strip gears, an inner row of gears and an outer row of gears are arranged on the front grid plate along the circumferential direction and are respectively a transmission gear and a grid strip gear, and the transmission gear is arranged on the inner side of the grid strip gears.
Further, bearing mounting holes are formed in the front grid plate and the rear grid plate, bearings are respectively sleeved at the front end and the rear end of the positioning grid strip, the rear end of the positioning grid strip is fixedly connected with the rear grid plate through a fastening nut, an elastic gasket is arranged between the fastening nut and the rear grid plate, a gear box cover is arranged at the front end of the positioning grid strip, the front end of the positioning grid strip sequentially penetrates through the grid gear and the gear box cover, the front end of the positioning grid strip is fixedly connected with the gear box cover through the fastening nut, and the elastic gasket is arranged between the fastening nut and the gear box cover.
Furthermore, the grid gear is arranged at the front end of the positioning grid, the grid gear is connected with the positioning grid through a flat key or a spline, and the outer end of the grid gear is fixed through a retaining ring for a shaft.
Further, bearings are respectively sleeved at the front end and the rear end of the separation grid bar, the rear end of the separation grid bar is fixedly connected with the rear grid plate through a fastening nut, an elastic washer is arranged between the fastening nut and the rear grid plate, the front end of the separation grid bar is connected with the grid bar gear through a flat key or a spline, and the outer end of the separation grid bar is fixed through a retaining ring for a shaft.
Furthermore, the rear end of the transmission gear shaft is fixedly connected to the front grid plate, the middle of the transmission gear shaft is connected with the transmission gear through a bearing, the outer end of the transmission gear shaft is fixed through a retaining ring for a shaft to limit the axial position of the transmission gear, the front end of the transmission gear shaft penetrates through the gear box cover and is connected with the locking seat, and the locking seat is connected with the gear box cover through a locking bolt.
Furthermore, a locking hole is formed in the locking seat, the locking hole is of a tooth-shaped structure, and an outer shaft head of the transmission gear shaft is matched with the locking hole.
Furthermore, the number of the positioning grid bars is 3, the positioning grid bars are respectively arranged at two ends and the middle part of the front grid plate, and the number of the separation grid bars is multiple.
Furthermore, a plurality of guide plates are fixedly connected to the separation grid bars, the included angle between the first guide plate and the horizontal plane is phi, phi is larger than the friction angle between the eduction and the guide plate, the included angle between the last guide plate and the horizontal plane is 90 degrees, the included angle between the first guide plate and the last guide plate is 90-phi, and (n +1) guide plates are arranged between the first guide plate and the last guide plate, so that each subsequent guide plate rotates (90-phi)/n relative to the previous guide plate.
Furthermore, the guide plate is welded in the middle of the separation grid.
Further, the guide plate is of a straight plate structure, an upward convex structure or a downward convex structure.
Compared with the prior art, the concave plate structure for improving the uniform distribution of the stripping substances has the following beneficial effects:
1. the uniformity of the threshed objects passing through the concave plate and distributed on the sorting screen after the threshing by the longitudinal axial flow can be obviously improved;
2. the gap between grid bars of the concave plate grid can be adjusted and locked under the condition that the concave plate is not replaced;
3. the spare part cost of the concave plate for harvesting different crops of the large longitudinal axial flow type grain harvester is reduced.
Drawings
FIG. 1 is a schematic view of the overall structure of the concave plate of the present invention.
FIG. 2 is a schematic view of the expanded structure of the concave plate of the present invention.
Fig. 3 is a schematic view of a different form of baffle configuration of the present invention.
Fig. 4 is a schematic view of a welded assembly of a baffle and a separation grid of the present invention.
FIG. 5 is a schematic view of the locking seat of the present invention.
FIG. 6 is a schematic view of the structure of the transmission gear shaft of the present invention.
FIG. 7 is an enlarged view of a portion of the recess plate structure of the present invention.
The device comprises a front grid plate 1, a fastening nut 2, a grid bar gear 3, a transmission gear 4, a guide plate 5, an elastic gasket 6, a positioning grid bar 7, a shaft retainer ring 8, a flat key or spline 9, a bearing 10, a gear box cover 11, a locking seat 12, a locking bolt 13, a separation grid bar 14, a rear grid plate 15 and a transmission gear shaft 16.
Detailed Description
The technical solution of the present invention is further illustrated by the accompanying drawings and examples.
With reference to fig. 1 to 7, the invention provides a concave plate structure for improving uniform distribution of a shedding article, which comprises a front grid plate 1, a rear grid plate 15 and grid bars, wherein the grid bars are arranged between the front grid plate 1 and the rear grid plate 15, the grid bars comprise positioning grid bars 7 and separating grid bars 14, grid bar gears 3 are respectively sleeved on the positioning grid bars 7 and the separating grid bars 14, a transmission gear shaft 16 is arranged on the front grid plate 1, a transmission gear 4 is sleeved on the transmission gear shaft 16, the transmission gear 4 is meshed with the grid bar gears 3,
an inner row of gears and an outer row of gears are arranged on the front grid plate 1 along the circumferential direction and are respectively a transmission gear 4 and a grid gear 3, and the transmission gear 4 is arranged on the inner side of the grid gear 3. The transmission gear 4 is located at the inner circumference of the front grid plate 1 and the grill gear 3 is located at the outer circumference of the front grid plate 1.
Further, bearing mounting holes are formed in the front grid plate 1 and the rear grid plate 15, bearings 10 are respectively sleeved at the front end and the rear end of the positioning grid strip 7, the rear end of the positioning grid strip 7 is fixedly connected with the rear grid plate 15 through a fastening nut 2, an elastic gasket 6 is arranged between the fastening nut 2 and the rear grid plate 15, a gear box cover 11 is arranged at the front end of the positioning grid strip 7, the front end of the positioning grid strip 7 sequentially penetrates through the grid gear 3 and the gear box cover 11, the front end of the positioning grid strip 7 is fixedly connected with the gear box cover 11 through the fastening nut 2, and the elastic gasket 6 is arranged between the fastening nut 2 and the gear box cover 11.
Further, the grid gear 3 is arranged at the front end of the positioning grid 7, the grid gear 3 is connected with the positioning grid 7 through a flat key or a spline 9, and the outer end of the grid gear is fixed through a retaining ring 8 for a shaft.
Further, bearings 10 are respectively sleeved at the front end and the rear end of the separation grid 14, the rear end of the separation grid 14 is fixedly connected with the rear grid plate 15 through a fastening nut 2, an elastic washer 6 is arranged between the fastening nut 2 and the rear grid plate 15, the front end of the separation grid 14 is connected with the grid gear 3 through a flat key or a spline 9, and the outer end of the separation grid is fixed through a retaining ring 8 for a shaft.
Furthermore, the rear end of the transmission gear shaft 16 is fixedly connected to the front grid plate 1, the middle of the transmission gear shaft 16 is connected to the transmission gear 4 through a bearing 10, the outer end of the transmission gear shaft is fixed through a shaft retainer ring 8 to limit the axial position of the transmission gear 4, the front end of the transmission gear shaft 16 penetrates through the gear box cover 11 and is connected with the locking seat 12, and the locking seat 12 is connected with the gear box cover 11 through a locking bolt 13.
Furthermore, a locking hole is formed in the locking seat 12, the locking hole is of a tooth-shaped structure, and an outer shaft head of the transmission gear shaft 16 is matched with the locking hole.
Further, the number of the positioning grid bars 7 is 3, the positioning grid bars are respectively arranged at two ends and the middle of the front grid plate 1, and the number of the separation grid bars 14 is multiple.
Further, a plurality of guide plates 5 are fixedly connected to the separation grid 14, the first guide plate 5 is in an included angle phi with the horizontal plane, the phi is larger than the friction angle between the eduction and the guide plate 5, the last guide plate 5 is in an included angle 90 degrees with the horizontal plane, the first guide plate 5 is in an included angle 90-phi with the last guide plate 5, and (n +1) guide plates are arranged between the first guide plate 5 and the last guide plate 5, so that each subsequent guide plate 5 rotates (90-phi)/n relative to the previous guide plate 5.
Further, the baffle 5 is welded in the middle of the separation grid 14. The guide plate 5 is of a straight plate structure, an upward convex structure or a downward convex structure. No matter what structure the guide plate 5 adopts, the kernel of the threshing material must be ensured to flow automatically after being installed.
According to the invention, by arranging the guide plates 5, threshed objects flow out from between two adjacent guide plates 5 after passing through the concave plate, so that the distribution uniformity of the sorting screen is ensured, and the problem that the sorting loss is large or the impurity content is high due to the fact that grain threshing moves along the tangential direction after passing through gaps of grid bars of the concave plate is avoided. When the concave grid gear is used, the transmission gear 4 is in meshed transmission with the grid gear 3, so that the gap between the grid bars can be adjusted, namely the gap between the positioning grid bar 7 and the separating grid bar 14 can be changed along with the rotation of the grid gear 3, the gap between the grid bars of the concave grid can be adjusted under the condition that the concave plate is not replaced, and the spare part cost of the concave plate for harvesting different crops of the large longitudinal axial flow type grain harvester is reduced.
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 (10)
1. The concave plate structure is characterized by comprising a front grid plate, a rear grid plate and grid bars, wherein the grid bars are arranged between the front grid plate and the rear grid plate and comprise positioning grid bars and separating grid bars, grid bar gears are sleeved on the positioning grid bars and the separating grid bars, a transmission gear shaft is arranged on the front grid plate, a transmission gear is sleeved on the transmission gear shaft and meshed with the grid bar gears, two rows of inner gears and outer gears are arranged on the front grid plate along the circumferential direction and are respectively a transmission gear and a grid bar gear, and the transmission gear is arranged on the inner side of the grid bar gear.
2. A concave plate structure for improving the uniform distribution of the detached objects, as claimed in claim 1, wherein the front and rear grid plates are provided with bearing mounting holes, the front and rear ends of the positioning grid are respectively sleeved with bearings, the rear end of the positioning grid is fixedly connected with the rear grid plate through a fastening nut, an elastic washer is provided between the fastening nut and the rear grid plate, the front end of the positioning grid is provided with a gear box cover, the front end of the positioning grid sequentially passes through the grid gear and the gear box cover, the front end of the positioning grid is fixedly connected with the gear box cover through a fastening nut, and an elastic washer is provided between the fastening nut and the gear box cover.
3. A concave structure for improving the uniform distribution of the separated objects, as claimed in claim 2, wherein said grid gear is disposed at the front end of said positioning grid, said grid gear is connected to said positioning grid by flat keys or splines, and the outer end is fixed by a retainer ring for shaft.
4. The concave plate structure for improving the uniform distribution of the separated objects as claimed in claim 1, wherein the front and rear ends of the separation grid are respectively sleeved with bearings, the rear end of the separation grid is fixedly connected with the rear grid plate through a fastening nut, an elastic washer is arranged between the fastening nut and the rear grid plate, the front end of the separation grid is connected with the grid gear through a flat key or a spline, and the outer end of the separation grid is fixed through a retaining ring for a shaft.
5. A concave plate structure for improving even distribution of escapements as claimed in claim 2, wherein the rear end of said transmission gear shaft is fixedly connected to said front grid plate, the middle of said transmission gear shaft is connected to said transmission gear through a bearing, the outer end of said transmission gear shaft is fixed by a shaft retainer ring to limit the axial position of said transmission gear, the front end of said transmission gear shaft passes through said gear box cover and is connected to said locking base, and said locking base is connected to said gear box cover through a locking bolt.
6. A recessed plate structure for improving even distribution of escapement in accordance with claim 5, wherein said locking seat is provided with locking holes having a tooth-like structure, and the outer shaft head of said transmission gear shaft is matched with said locking holes.
7. A concave structure for improving the uniform distribution of the educts, as claimed in claim 1, wherein said positioning grid is 3 in number, which are respectively disposed at both ends and at the middle of said front grid plate, and said separating grid is plural in number.
8. A notch plate structure for improving the uniform distribution of the educt, as claimed in claim 1, wherein the separation grid is fixedly connected with the guide plates, the first guide plate has an angle phi with the horizontal plane, phi is larger than the friction angle between the educt and the guide plate, the last guide plate has an angle 90 degrees with the horizontal plane, the angle between the first guide plate and the last guide plate is 90-phi, and (n +1) guide plates are arranged between the first guide plate and the last guide plate, so that each subsequent guide plate rotates (90-phi)/n relative to the previous guide plate.
9. A recessed plate structure for improving the uniform distribution of the educts of claim 8, wherein the deflector is welded to the middle of the separation grid.
10. A deck structure for improving the uniformity of the distribution of the exudates in accordance with claim 8, wherein said deflector is a straight plate structure, an upwardly convex structure or a downwardly convex structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111293929.4A CN113875403B (en) | 2021-11-03 | 2021-11-03 | Improve and take off thing evenly distributed's notch board structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111293929.4A CN113875403B (en) | 2021-11-03 | 2021-11-03 | Improve and take off thing evenly distributed's notch board structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113875403A true CN113875403A (en) | 2022-01-04 |
| CN113875403B CN113875403B (en) | 2022-07-29 |
Family
ID=79016115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111293929.4A Active CN113875403B (en) | 2021-11-03 | 2021-11-03 | Improve and take off thing evenly distributed's notch board structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113875403B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2621216A1 (en) * | 1987-10-01 | 1989-04-07 | Moulet Andre | IMPROVED COUNTER-BEATER FOR COMBINE HARVESTER |
| CN2824547Y (en) * | 2005-07-21 | 2006-10-11 | 山东福田重工股份有限公司 | Clearance changeable concave board of combined harvester |
| CN104855058A (en) * | 2015-04-03 | 2015-08-26 | 江苏大学 | Intelligent adjusting mechanism and adjusting method for detached grain distribution for axial flow threshing and separating device |
| CN108651016A (en) * | 2018-06-13 | 2018-10-16 | 河北中农博远农业装备有限公司 | A kind of corn threshing notch board that can automatically adjust grid distance |
| CN109479532A (en) * | 2018-12-26 | 2019-03-19 | 新疆农业大学 | Adjustable threshing concave plate screen device and sheller unit |
| CN109906778A (en) * | 2019-03-18 | 2019-06-21 | 江苏大学 | A kind of combination of dual-sided board clamps the adjustable sheller unit of cylinder-concave clearance and combined harvester |
| US20200196530A1 (en) * | 2017-04-03 | 2020-06-25 | Cnh Industrial America Llc | Adjusting System for Fingerstyle Grates of an Agricultural Harvester |
| CN113141880A (en) * | 2021-03-16 | 2021-07-23 | 安徽聚力创新项目管理有限公司 | Adjustable concave plate device for threshing and separating of multifunctional harvesting machine |
-
2021
- 2021-11-03 CN CN202111293929.4A patent/CN113875403B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2621216A1 (en) * | 1987-10-01 | 1989-04-07 | Moulet Andre | IMPROVED COUNTER-BEATER FOR COMBINE HARVESTER |
| CN2824547Y (en) * | 2005-07-21 | 2006-10-11 | 山东福田重工股份有限公司 | Clearance changeable concave board of combined harvester |
| CN104855058A (en) * | 2015-04-03 | 2015-08-26 | 江苏大学 | Intelligent adjusting mechanism and adjusting method for detached grain distribution for axial flow threshing and separating device |
| US20200196530A1 (en) * | 2017-04-03 | 2020-06-25 | Cnh Industrial America Llc | Adjusting System for Fingerstyle Grates of an Agricultural Harvester |
| CN108651016A (en) * | 2018-06-13 | 2018-10-16 | 河北中农博远农业装备有限公司 | A kind of corn threshing notch board that can automatically adjust grid distance |
| CN109479532A (en) * | 2018-12-26 | 2019-03-19 | 新疆农业大学 | Adjustable threshing concave plate screen device and sheller unit |
| CN109906778A (en) * | 2019-03-18 | 2019-06-21 | 江苏大学 | A kind of combination of dual-sided board clamps the adjustable sheller unit of cylinder-concave clearance and combined harvester |
| CN113141880A (en) * | 2021-03-16 | 2021-07-23 | 安徽聚力创新项目管理有限公司 | Adjustable concave plate device for threshing and separating of multifunctional harvesting machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113875403B (en) | 2022-07-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2594126B1 (en) | Separation grate | |
| CN113875403B (en) | Improve and take off thing evenly distributed's notch board structure | |
| CN102369821A (en) | Multi-functional bionic corn thresher | |
| EP3031316B1 (en) | Threshing drum | |
| CA2312174A1 (en) | Finger roller for agricultural implements | |
| WO2013087423A1 (en) | Chaff conditioning and distributing device | |
| CN201733624U (en) | Harvested material conveying device of combine harvester | |
| JP5851893B2 (en) | Handle structure of threshing equipment | |
| CN201039688Y (en) | Combined harvester | |
| CN210959517U (en) | Inclined axial-flow type lotus seed pod threshing machine | |
| US11470779B2 (en) | Gathering chains for row crop harvester heads | |
| EP3501258B1 (en) | Combine harvester | |
| EP3815508B1 (en) | Threshing components for combine harvester | |
| CN105103807A (en) | Squeezing and rubbing corn thresher based on multiple rows of roller chains | |
| RU196028U1 (en) | DEVICE FOR TREATING HERBS SEEDS | |
| CN203884241U (en) | Threshing device | |
| DE4116354C2 (en) | Concave | |
| CN220255152U (en) | Plate tooth type longitudinal axial flow threshing device | |
| CN211608183U (en) | Pod threshing machine | |
| JP7447884B2 (en) | combine | |
| CN218388792U (en) | Threshing cylinder of harvester | |
| US6918238B2 (en) | Preloadable, externally installable and removable bearing and shaft assembly | |
| WO2013068128A1 (en) | Picking device for maize or the like | |
| CN217407119U (en) | Cleaning sieve sheet assembly, cleaning sieve box and combine harvester | |
| CN109315135B (en) | Leaf stripping device and crop harvester using same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |