Cyperus esculentus harvester and reverse rotary screen mechanism
By designing the inverted drum screen mechanism on the oil shabu harvester, and using the mutual reversal and double-layer design of the inner and outer drum screens, the problem of difficult to efficiently separate bean grass in the drum screen of the oil shabu harvester in the prior art is solved, achieving more efficient screening and higher harvesting rates.
Patent Information
- Application Number
- CN202421498271.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-06-28
AI Technical Summary
The drum screen mechanism of the existing oil sauna harvester is difficult to efficiently separate bean grass, resulting in the impurities such as grass, stones, soil, etc. being coated with oil sauna during the harvesting process, which reduces the harvesting rate.
A reverse roller screen mechanism is designed to increase the effective screening area of the screen through the reversal of the inner roller screen and the outer roller screen, and the double-layer design of the inner roller screen and the meshing of the gear shaft are used to achieve consistent linear velocity stirring and screening.
It effectively improves the harvest rate of sausage beans, increases the effective screening area of the screening mesh, improves screening efficiency, and has the ability to disperse, spread, guide, and self-clean the inner and outer roller screens.
Smart Images
Figure CN222786401U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of agricultural machinery, in particular to a cyperus rotundus harvester and a reversible drum screen mechanism adapted for the cyperus rotundus harvester. Background Art
[0002] Cyperus rotundus is an annual herbaceous plant of the Cyperaceae family and the genus Cyperus. It is a non-grain economic crop with high quality, high yield and broad prospects for comprehensive utilization.
[0003] Cyperus oleifera is planted in sandy soil, and its grains are small, with a diameter of about 5-20mm and an average of about 10mm. At present, the harvesting quality and quantity of Cyperus oleifera harvesters are not ideal, especially the drum screen mechanism on existing Cyperus oleifera harvesters is difficult to efficiently separate the cyperus oleifera from the grass, which will inevitably lead to the direct discharge of some Cyperus oleifera with impurities such as grass, stones, and soil during the harvesting process, thereby reducing the harvest rate. Utility Model Content
[0004] The utility model aims to provide a cyperus rotundus harvester and a reversible drum screen mechanism adapted for the cyperus rotundus harvester, which utilizes the mutual reversal of the inner drum screen and the outer drum screen to increase the effective screening area of the screen and improve the cyperus rotundus harvest rate.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A cyperus rotundus harvester comprises a material box, a rotary tiller, a chain plate mechanism, a clean material lifting mechanism, a drum screen mechanism, a fan, and a flat screen mechanism, wherein the material box is located at the front of the vehicle, the rotary tiller is installed below the material box, the drum screen mechanism is located at the vehicle body, the chain plate mechanism is tilted and connected between the rotary tiller and the drum screen mechanism, a push auger is arranged in the drum screen mechanism, the flat screen mechanism is arranged on the side of the drum screen mechanism, the clean material lifting mechanism is tilted and connected between the flat screen mechanism and the material box, the drum screen mechanism comprises a drum screen, the drum screen is located behind the chain plate mechanism of the cyperus rotundus harvester and on the side of the flat screen mechanism, and is covered on the outside of the push auger, the drum screen comprises an inner drum screen and an outer drum screen arranged in inner and outer layers, the inner drum screen is coaxial with the outer drum screen, and the push auger is located inside the inner drum screen;
[0007] An outer cylinder inner gear ring is installed on the inner side of the front end of the outer drum screen, and an inner cylinder outer gear ring is installed on the outer side of the front end of the inner drum screen. A gear shaft is meshed between the outer cylinder inner gear ring and the inner cylinder outer gear ring, and the gear shaft is connected to the driving mechanism.
[0008] Preferably, the front end of the inner drum screen is flush with the front end of the outer drum screen, and the rear end of the inner drum screen is a distance longer than the rear end of the outer drum screen.
[0009] Preferably, a supporting wheel assembly is further provided between the front end of the inner drum screen and the front end of the outer drum screen, and the supporting wheel assembly and the gear shaft are symmetrically arranged along the central axis of the inner drum screen.
[0010] A reversible drum screen mechanism, adapted for a cyperus oleifera harvester, comprises a drum screen, wherein the drum screen comprises an inner drum screen and an outer drum screen arranged in inner and outer layers, the inner drum screen is coaxial with the outer drum screen, and a push auger is located inside the inner drum screen;
[0011] An outer cylinder inner gear ring is installed on the inner side of the front end of the outer drum screen, and an inner cylinder outer gear ring is installed on the outer side of the front end of the inner drum screen. A gear shaft is meshed between the outer cylinder inner gear ring and the inner cylinder outer gear ring, and the gear shaft is connected to the driving mechanism.
[0012] Preferably, the front end of the inner drum screen is flush with the front end of the outer drum screen, and the rear end of the inner drum screen is a distance longer than the rear end of the outer drum screen.
[0013] Preferably, a supporting wheel assembly is further provided between the front end of the inner drum screen and the front end of the outer drum screen, and the supporting wheel assembly and the gear shaft are symmetrically arranged along the central axis of the inner drum screen.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] 1. The utility model utilizes the mutual reversal of the inner drum screen and the outer drum screen to increase the effective screening area of the screen and effectively improve the screening efficiency;
[0016] 2. The double-layer design of the inner and outer drum screens and the use of gear shafts ensure that the linear speeds of the inner and outer drum screens are consistent, so that the stirring effect of the materials to be screened is synchronized, which is more conducive to combined screening;
[0017] 3. The utility model also has the ability to scatter, evenly spread and guide the materials to be screened and the ability to self-clean the inner and outer drum screens. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the structure of the reverse drum screen mechanism of the utility model;
[0019] Figure 2 It is a side view of the reverse drum screen mechanism of the utility model;
[0020] Figure 3 It is a structural schematic diagram of a cyperus oleifera harvester equipped with a reverse drum screen mechanism;
[0021] In the figure: 1. material box; 2. rotary tiller; 3. chain plate mechanism; 4. clean material lifting mechanism; 5. drum screen mechanism; 6. fan; 7. flat screen mechanism; 8. push auger; 11. outer drum screen; 12. inner drum screen; 13. inner gear ring of outer cylinder; 14. outer gear ring of inner cylinder; 15. gear shaft; 16. support wheel assembly. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.
[0023] Embodiment 1
[0024] like Figure 3 The cyperus rotundus harvester shown in the figure comprises a material box 1, a rotary tiller 2, a chain plate mechanism 3, a clean material lifting mechanism 4, a drum screen mechanism 5, a fan 6, and a flat screen mechanism 7. The material box 1 is located at the front of the vehicle, the rotary tiller 2 is installed below the material box 1, the drum screen mechanism 5 is located at the vehicle body, the chain plate mechanism 3 is tilted and connected between the rotary tiller 2 and the drum screen mechanism 5, a push auger 8 is arranged in the drum screen mechanism 5, the flat screen mechanism 7 is arranged on the side of the drum screen mechanism 5, the clean material lifting mechanism 4 is tilted and connected between the flat screen mechanism 7 and the material box 1, the drum screen mechanism 5 comprises a drum screen, and the drum screen comprises an inner drum screen 12 and an outer drum screen 11 arranged in inner and outer layers, the inner drum screen 12 is coaxial with the outer drum screen 11, and the push auger 8 is located inside the inner drum screen 12;
[0025] An outer cylinder inner gear ring 13 is installed on the inner side of the front end of the outer drum screen 11, and an inner cylinder outer gear ring 14 is installed on the outer side of the front end of the inner drum screen 12. A gear shaft 15 is meshed between the outer cylinder inner gear ring 13 and the inner cylinder outer gear ring 14, and the gear shaft 15 is connected to the driving mechanism.
[0026] The front end of the inner drum screen 12 is flush with the front end of the outer drum screen 11 , and the rear end of the inner drum screen 12 is a distance longer than the rear end of the outer drum screen 11 .
[0027] A supporting wheel assembly 16 is further provided between the front end of the inner drum screen 12 and the front end of the outer drum screen 11 . The supporting wheel assembly 16 and the gear shaft 15 are symmetrically arranged along the central axis of the inner drum screen 12 .
[0028] Embodiment 2
[0029] like Figure 1 and Figure 2The shown embodiment is a reversible drum screen mechanism adapted for a cyperus oleifera harvester, comprising a drum screen, which is located behind a chain plate mechanism 3 of the cyperus oleifera harvester and to the side of a flat screen mechanism 7, and is covered on the outside of a push auger 8. The drum screen comprises an inner drum screen 12 and an outer drum screen 11 arranged in inner and outer layers, the inner drum screen 12 is coaxial with the outer drum screen 11, and the push auger 8 is located inside the inner drum screen 12.
[0030] An outer cylinder inner gear ring 13 is installed on the inner side of the front end of the outer drum screen 11, and an inner cylinder outer gear ring 14 is installed on the outer side of the front end of the inner drum screen 12. A gear shaft 15 is meshed between the outer cylinder inner gear ring 13 and the inner cylinder outer gear ring 14, and the gear shaft 15 is connected to the driving mechanism.
[0031] The front end of the inner drum screen 12 is flush with the front end of the outer drum screen 11 , and the rear end of the inner drum screen 12 is a distance longer than the rear end of the outer drum screen 11 .
[0032] A supporting wheel assembly 16 is further provided between the front end of the inner drum screen 12 and the front end of the outer drum screen 11 . The supporting wheel assembly 16 and the gear shaft 15 are symmetrically arranged along the central axis of the inner drum screen 12 .
[0033] When the cyperus rotundus harvester is working, the rotary tiller 2 tills the soil and takes the materials, and sends the materials to be screened into the drum screen mechanism 5 for screening through the chain plate mechanism 3. Specifically, the chain plate mechanism 3 transmits the cyperus rotundus, soil, grass and other materials to be screened into the inner drum screen 12. The gear shaft 15 is an active transmission mechanism, which is meshed with the inner gear ring 13 of the outer cylinder and the outer gear ring 14 of the inner cylinder to provide a counterclockwise turning action, forming a set of co-rotating structure with consistent linear speeds of three gears. As the inner drum screen 12 rotates clockwise, the materials to be screened will be mainly accumulated at the lower left and lower positions of the inner drum screen 12 for initial screening in the cylinder, assisted by the rotation of the push auger 8, so that the materials to be screened are spread in the length direction of the inner drum screen 12, and the soil, cyperus rotundus and grass fall into the outer drum screen 11. At the lower left position, the outer drum screen 11 rotates counterclockwise, and the lower left, lower and lower right areas can be used to perform secondary screening of the cyperus rotundus. The above design increases the utilization area of the screen without increasing the diameter of the outer drum screen 11, thereby improving the screening efficiency. The use of the supporting wheel assembly 16 is used to ensure that the outer drum screen 11 and the inner drum screen 12 rotate stably along the axis. Large grass, stones, sand and the like are screened out by the drum screen mechanism 5, and the cyperus rotundus is sent to the flat screen mechanism 7 through the pushing auger 8 and other guiding mechanisms. With the eccentric vibration of the flat screen mechanism 7, the cyperus rotundus is transported to the clean material lifting mechanism 4. During the transportation process, the small grass and other impurities are removed by the negative suction effect of the fan 6, and the screening is completed and enters the material box 1 for storage and collection.
Claims
1. A cyperus oleifera harvester, comprising a material box (1), a rotary tiller (2), a chain plate mechanism (3), a clean material lifting mechanism (4), a drum screen mechanism (5), a fan (6), and a flat screen mechanism (7), wherein the material box (1) is located at the front of the vehicle, the rotary tiller (2) is installed below the material box (1), the drum screen mechanism (5) is located at the vehicle body, the chain plate mechanism (3) is arranged obliquely and connected between the rotary tiller (2) and the drum screen mechanism (5), a push auger (8) is arranged inside the drum screen mechanism (5), the flat screen mechanism (7) is arranged on the side of the drum screen mechanism (5), and the clean material lifting mechanism (4) is arranged obliquely and connected between the flat screen mechanism (7) and the material box (1), characterized in that: The drum screen mechanism (5) comprises a drum screen, which is located behind the chain plate mechanism (3) of the cyperus oleifera harvester and on the side of the flat screen mechanism (7), and covers the outside of the push auger (8), and is characterized in that: the drum screen comprises an inner drum screen (12) and an outer drum screen (11) arranged in inner and outer layers, the inner drum screen (12) is coaxial with the outer drum screen (11), and the push auger (8) is located inside the inner drum screen (12); An outer cylinder inner gear ring (13) is installed on the inner side of the front end of the outer drum screen (11), an inner cylinder outer gear ring (14) is installed on the outer side of the front end of the inner drum screen (12), a gear shaft (15) is meshed between the outer cylinder inner gear ring (13) and the inner cylinder outer gear ring (14), and the gear shaft (15) is connected to a driving mechanism.
2. The cyperus oleifera harvester according to claim 1, characterized in that: The front end of the inner drum screen (12) is flush with the front end of the outer drum screen (11), and the rear end of the inner drum screen (12) is a distance longer than the rear end of the outer drum screen (11).
3. The cyperus oleifera harvester according to claim 1, characterized in that: A supporting wheel assembly (16) is also provided between the front end of the inner drum screen (12) and the front end of the outer drum screen (11), and the supporting wheel assembly (16) and the gear shaft (15) are symmetrically arranged along the central axis of the inner drum screen (12).
4. A reversible drum screen mechanism, adapted for a cyperus oleifera harvester, comprising a drum screen, characterized in that: The drum screen comprises an inner drum screen (12) and an outer drum screen (11) arranged in inner and outer layers, the inner drum screen (12) and the outer drum screen (11) are coaxial, and the push auger (8) is located inside the inner drum screen (12); An outer cylinder inner gear ring (13) is installed on the inner side of the front end of the outer drum screen (11), an inner cylinder outer gear ring (14) is installed on the outer side of the front end of the inner drum screen (12), a gear shaft (15) is meshed between the outer cylinder inner gear ring (13) and the inner cylinder outer gear ring (14), and the gear shaft (15) is connected to a driving mechanism.
5. The inverted drum screen mechanism according to claim 4, characterized in that: The front end of the inner drum screen (12) is flush with the front end of the outer drum screen (11), and the rear end of the inner drum screen (12) is a distance longer than the rear end of the outer drum screen (11).
6. The inverted drum screen mechanism according to claim 4, characterized in that: A supporting wheel assembly (16) is also provided between the front end of the inner drum screen (12) and the front end of the outer drum screen (11), and the supporting wheel assembly (16) and the gear shaft (15) are symmetrically arranged along the central axis of the inner drum screen (12).