CN108738712B - Reel of eccentric turnover harvester - Google Patents
Reel of eccentric turnover harvester Download PDFInfo
- Publication number
- CN108738712B CN108738712B CN201810627613.6A CN201810627613A CN108738712B CN 108738712 B CN108738712 B CN 108738712B CN 201810627613 A CN201810627613 A CN 201810627613A CN 108738712 B CN108738712 B CN 108738712B
- Authority
- CN
- China
- Prior art keywords
- reel
- shaft
- connecting rod
- spring tooth
- circular ring
- 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.)
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Links
- 230000007306 turnover Effects 0.000 title claims abstract description 8
- 230000033001 locomotion Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 238000004064 recycling Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 239000010902 straw Substances 0.000 abstract description 5
- 238000004804 winding Methods 0.000 abstract description 4
- 230000007246 mechanism Effects 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 4
- 241001124569 Lycaenidae Species 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D57/00—Delivering mechanisms for harvesters or mowers
- A01D57/01—Devices for leading crops to the mowing apparatus
- A01D57/02—Devices for leading crops to the mowing apparatus using reels
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Outside Dividers And Delivering Mechanisms For Harvesters (AREA)
Abstract
The invention relates to a reel of an eccentric turnover harvester, which comprises a frame, a web, a circular ring and a reel shaft which is arranged on the frame and is driven to rotate by a power source, wherein the web is fixedly connected to the end part of the reel shaft; the stand is provided with a support shaft which is parallel to the reel shaft and is not coaxial with the reel shaft, and the circular ring is arranged on the support shaft and corresponds to the spoke plate; rotatable spring tooth shafts are arranged on the radial plate at intervals in the circumferential direction, and a plurality of spring teeth are fixedly connected to the spring tooth shafts; the elastic gear shaft is fixedly connected with a first connecting rod perpendicular to the elastic gear shaft, one end of the first connecting rod, which is far away from the elastic gear shaft, is hinged with one end of a second connecting rod, and the other end of the second connecting rod is hinged with the circular ring; the ring is driven by the first connecting rod and the second connecting rod to rotate around the supporting shaft, and when the reel shaft drives the radial plate to rotate for one circle, the ring also rotates around the supporting shaft for one circle. The invention has simple structure and high reliability, and can effectively reduce the phenomena of straw winding and straw hanging.
Description
Technical Field
The invention relates to an eccentric overturning harvester reel, belonging to the technical field of agricultural machinery.
Background
Reel is an important part on the harvester and the combine harvester and the cutter-rower, is generally transversely arranged at the front end of the combine harvester or the cutter-rower, and has the function of guiding the stalks of crops to be cut to the direction of a cutter and righting lodged crops in the guiding process; the stalks are supported and pushed to the conveying device during cutting, so that the cut stalks are prevented from accumulating on the cutter to cause cutter blockage.
At present, most of reel wheels of combine harvesters and cutter-windrowers on the market mainly adopt eccentric reel wheels, and the eccentric reel wheels are beneficial to supporting lodged crops and reducing the striking of ears, but because the spring teeth of the reel wheels are downward in the whole course of movement, the reel wheels are easy to bypass the reel wheels for tall plants and crops with more branches, and the operation efficiency of the combine harvesters and the cutter-windrowers is affected.
U.S. patent publication No. US20030061794A1 discloses a slideway type turning reel which turns over reel teeth at reel return section, so as to reduce straw winding and reel hanging. However, the reel mechanism adopts an irregular slideway and a multi-link mechanism, one end of the multi-link mechanism is hinged with reel spring teeth, and the other end slides in the irregular slideway, so that the defects of complex mechanism, easy abrasion of the slideway and the like are integrally caused, and the worn slideway is easy to cause the multi-link mechanism to generate a false motion state.
Disclosure of Invention
The invention aims at: the reel is simple in structure and high in reliability, and can effectively reduce the phenomena of straw winding and reel hanging.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: a reel of an eccentric turnover harvester comprises a frame, a web, a circular ring and a reel shaft which is arranged on the frame and is driven to rotate by a power source, wherein the web is fixedly connected to the end part of the reel shaft; the stand is provided with a support shaft which is parallel to the reel shaft and is not coaxial with the reel shaft, and the circular ring is arranged on the support shaft and corresponds to the spoke plate; rotatable spring tooth shafts are arranged on the radial plate at intervals in the circumferential direction, and a plurality of spring teeth are fixedly connected to the spring tooth shafts; the elastic gear shaft is fixedly connected with a first connecting rod perpendicular to the elastic gear shaft, one end of the first connecting rod, which is far away from the elastic gear shaft, is hinged with one end of a second connecting rod, and the other end of the second connecting rod is hinged with the circular ring; the circular ring is driven by the first connecting rod and the second connecting rod to rotate around the supporting shaft, and when the reel shaft drives the radial plate to rotate for one circle, the circular ring also rotates around the supporting shaft for one circle; in the working process, the hinge point of the circular ring and the second connecting rod is used as a reference point, and the motion trail of the reference point consists of a reel section, a spring tooth overturning section and a spring tooth quick return front throwing section which are connected in sequence; when the reference point is positioned in the reel section, the spring tooth stretches downwards; when the reference point is positioned at the spring tooth overturning section, the spring tooth overturns towards the reel shaft for recycling; when the reference point is positioned at the front throwing section of the spring tooth, the spring tooth rapidly turns over towards the advancing direction of the reel.
Preferably, the spring tooth is arc-shaped.
The invention provides a reel of an eccentric turnover harvester, wherein a radial plate, a circular ring, a first connecting rod, a second connecting rod and a spring gear shaft are combined to form a connecting rod mechanism, the distance between the hinge points of the circular ring and the first connecting rod and the rotation center of the radial plate is changed through the rotation of the circular ring, and the spring gear shaft is driven to rotate, so that the spring gear of the reel has spring gear turnover and rapid front throwing movement in a movement period, namely, the spring gear is turned and retracted after a lodging crop is propped up, the straw of the winding crop is avoided, and then the spring gear is rapidly thrown forwards and then is stretched out to prepare for the next work of supporting the lodging crop.
Compared with the prior art, the elastic tooth overturning and quick front throwing movement of the elastic tooth in one movement period is realized by the synchronous eccentric rotation of the regular circular ring along with the radial plate under the support of the support shaft and the driving of the first connecting rod respectively hinged with the circular ring and the second connecting rod. Because the regular circular ring is simple to process and manufacture, faults are not easy to occur in the using process, and the reliability is higher.
The further improvement of the technical scheme is as follows: the support shaft is detachably fixed on the frame, and the frame is provided with a plurality of installation positions for installing the support shaft. Therefore, the position of the circular ring can be adjusted by adjusting the position of the supporting shaft, namely, the eccentric distance between the supporting shaft and the reel shaft is adjusted, namely, the structure of a four-bar mechanism formed by combining the radial plate, the circular ring, the first connecting rod, the second connecting rod and the spring gear shaft is adjusted, so that the movement track of the spring gear can be conveniently adjusted, and the operation of different crops can be adapted.
Drawings
The invention is further described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of an embodiment of the present invention.
Fig. 2 is a side view schematic of fig. 1.
Reference numerals: 1-spring tooth, 2-spring tooth shaft, 3-first connecting rod, 4-second connecting rod, 5-ring, 6-supporting seat, 7-belt pulley, 8-right fixed sleeve, 9-reel shaft, 10-radial plate, 11-left fixed sleeve.
Detailed Description
Example 1
As shown in fig. 1 and 2, the reel of the eccentric turnover harvester of the embodiment comprises a frame (not shown in the drawings), a web 10, a circular ring 5 and a reel shaft 9 which is arranged on the frame and is driven to rotate by a power source, wherein the web 10 is fixedly connected with the end part of the reel shaft 9; the stand is provided with a support shaft 6 which is parallel to the reel shaft 9 and is not coaxial with the reel shaft, and the circular ring 5 is arranged on the support shaft 5 and corresponds to the radial plate 10. Wherein the spring tooth 1 is preferably an arc spring tooth.
In this embodiment, two webs 10 are respectively fixed at two ends of the reel shaft 9, and correspondingly, two rings 5 are also provided and correspond to the webs 10 one by one. As shown in fig. 1, a left fixing sleeve 11 and a right fixing sleeve 8 are arranged on the frame, the left fixing sleeve 11 and the right fixing sleeve 8 are respectively used for fixing two support shafts 6, and two circular rings 5 are respectively sleeved on the two support shafts 6.
Rotatable elastic tooth shafts 2 are arranged on the radial plates 10 at intervals in the circumferential direction, and a plurality of elastic teeth 1 are fixedly connected to the elastic tooth shafts 2; the end part of the spring gear shaft 2, which is close to the radial plate 10, is fixedly connected with a first connecting rod 3 perpendicular to the spring gear shaft 2, one end of the first connecting rod 3, which is far away from the spring gear shaft 2, is hinged with one end of a second connecting rod 4, and the other end of the second connecting rod 4 is hinged with a circular ring 5. The reel shaft 9 is driven by a transmission mechanism (in this example, a belt transmission mechanism consisting of a belt pulley 7 and a motor output shaft), the circular ring 10 rotates around the supporting shaft 6 under the traction of the first connecting rod 3 and the second connecting rod 4, and when the reel shaft 9 drives the radial plate 10 to rotate for one circle, the circular ring 5 also rotates around the supporting shaft 6 for one circle.
In the working process, the hinge point of the circular ring 5 and the second connecting rod 4 is taken as a reference point, and the movement track of the reference point consists of a reel section, a spring tooth overturning section and a spring tooth quick return front throwing section which are connected in sequence; when the reference point is located in the reel section, the spring tooth 1 extends downwards; when the reference point is positioned at the spring tooth overturning section, the spring tooth 1 overturns towards the reel shaft 9 for recycling; when the reference point is positioned at the front throwing section of the spring tooth, the spring tooth 1 rapidly overturns towards the advancing direction of the reel.
In order to better ensure that the elastic gear shaft 2 can realize circular motion and prevent blocking, the distance between the central line of the elastic gear shaft and the hinge points of the first connecting rod and the second connecting rod is larger than the distance between the supporting shaft and the reel shaft, namely, as shown in fig. 2, O is the rotation center of the spoke plate (namely, the center of the reel shaft), O1 is the rotation center of the ring, the center of the ring is different from the rotation center of the spoke plate, the distance from the point O to the point O1 is the eccentric distance e of the ring, one end of the first connecting rod is fixedly connected with the elastic gear, the other end of the first connecting rod is hinged with the second connecting rod (the hinge point is P), the distance from the point O1 to the point P is L, and then L is more than or equal to e.
In order to adapt to the operation of different crops (such as rape, wheat and the like), the embodiment can be further improved as follows: the support shaft 6 is detachably fixed on a frame, and the frame is provided with a plurality of mounting positions for mounting the support shaft 6. Therefore, the track of the circular ring can be adjusted by adjusting the position of the supporting shaft, namely, the position of the center o1 of the circular ring relative to the center o of the reel shaft is adjusted, so that the movement track of the spring tooth can be conveniently adjusted. In this case, the transmission mechanism is preferably a belt transmission mechanism.
The present invention is not limited to the specific technical solutions of the above embodiments, and other embodiments may be provided in addition to the above embodiments. All technical schemes formed by equivalent substitution or equivalent transformation fall within the protection scope of the invention.
Claims (3)
1. An eccentric turnover harvester reel, which is characterized in that: the reel shaft is fixedly connected to the end part of the reel shaft; the stand is provided with a support shaft which is parallel to the reel shaft and is not coaxial with the reel shaft, and the circular ring is arranged on the support shaft and corresponds to the spoke plate;
rotatable spring tooth shafts are arranged on the radial plate at intervals in the circumferential direction, and a plurality of spring teeth are fixedly connected to the spring tooth shafts; the elastic gear shaft is fixedly connected with a first connecting rod perpendicular to the elastic gear shaft, one end of the first connecting rod, which is far away from the elastic gear shaft, is hinged with one end of a second connecting rod, and the other end of the second connecting rod is hinged with the circular ring;
the circular ring is driven by the first connecting rod and the second connecting rod to rotate around the supporting shaft, and when the reel shaft drives the radial plate to rotate for one circle, the circular ring also rotates around the supporting shaft for one circle;
in the working process, the hinge point of the circular ring and the second connecting rod is used as a reference point, and the motion trail of the reference point consists of a reel section, a spring tooth overturning section and a spring tooth quick return front throwing section which are connected in sequence; when the reference point is positioned in the reel section, the spring tooth stretches downwards; when the reference point is positioned at the spring tooth overturning section, the spring tooth overturns towards the reel shaft for recycling; when the reference point is positioned at the front throwing section of the spring tooth, the spring tooth rapidly turns over towards the advancing direction of the reel.
2. The eccentric rotary harvester reel of claim 1 wherein: the spring tooth is arc-shaped.
3. The eccentric rotary harvester reel of claim 1 wherein: the support shaft is detachably fixed on the frame, and the frame is provided with a plurality of installation positions for installing the support shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810627613.6A CN108738712B (en) | 2018-06-19 | 2018-06-19 | Reel of eccentric turnover harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810627613.6A CN108738712B (en) | 2018-06-19 | 2018-06-19 | Reel of eccentric turnover harvester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108738712A CN108738712A (en) | 2018-11-06 |
| CN108738712B true CN108738712B (en) | 2023-12-19 |
Family
ID=63978662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810627613.6A Active CN108738712B (en) | 2018-06-19 | 2018-06-19 | Reel of eccentric turnover harvester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108738712B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114847007B (en) * | 2022-06-07 | 2023-05-02 | 四川农业大学 | Seedling pulling device of soybean harvester and control method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4067177A (en) * | 1976-08-09 | 1978-01-10 | Universal Harvester Company, Inc. | Harvester reel |
| SU1207424A1 (en) * | 1983-08-29 | 1986-01-30 | Кубанский Ордена Трудового Красного Знамени Сельскохозяйственный Институт | Eccetricless universal reel |
| CN2607008Y (en) * | 2003-03-20 | 2004-03-24 | 北汽福田汽车股份有限公司潍坊农业装备分公司 | Straw-moving reel spring tine for combine |
| CN1656869A (en) * | 2004-01-30 | 2005-08-24 | 株式会社久保田 | Combine-harvester |
| CA2888766A1 (en) * | 2015-04-21 | 2016-10-21 | Macdon Industries Ltd. | Tine tube bushing for the reel of a crop harvesting header |
| CN208353991U (en) * | 2018-06-19 | 2019-01-11 | 农业部南京农业机械化研究所 | A kind of eccentric turnover type harvester reel |
-
2018
- 2018-06-19 CN CN201810627613.6A patent/CN108738712B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4067177A (en) * | 1976-08-09 | 1978-01-10 | Universal Harvester Company, Inc. | Harvester reel |
| SU1207424A1 (en) * | 1983-08-29 | 1986-01-30 | Кубанский Ордена Трудового Красного Знамени Сельскохозяйственный Институт | Eccetricless universal reel |
| CN2607008Y (en) * | 2003-03-20 | 2004-03-24 | 北汽福田汽车股份有限公司潍坊农业装备分公司 | Straw-moving reel spring tine for combine |
| CN1656869A (en) * | 2004-01-30 | 2005-08-24 | 株式会社久保田 | Combine-harvester |
| CA2888766A1 (en) * | 2015-04-21 | 2016-10-21 | Macdon Industries Ltd. | Tine tube bushing for the reel of a crop harvesting header |
| CN208353991U (en) * | 2018-06-19 | 2019-01-11 | 农业部南京农业机械化研究所 | A kind of eccentric turnover type harvester reel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108738712A (en) | 2018-11-06 |
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