CN117413694A - Axial-flow type coaxial coupling corn threshing inner and outer double rollers - Google Patents
Axial-flow type coaxial coupling corn threshing inner and outer double rollers Download PDFInfo
- Publication number
- CN117413694A CN117413694A CN202311716555.1A CN202311716555A CN117413694A CN 117413694 A CN117413694 A CN 117413694A CN 202311716555 A CN202311716555 A CN 202311716555A CN 117413694 A CN117413694 A CN 117413694A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- threshing
- cylinder body
- conical head
- corn
- 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
- 240000008042 Zea mays Species 0.000 title claims abstract description 71
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 title claims abstract description 71
- 235000002017 Zea mays subsp mays Nutrition 0.000 title claims abstract description 71
- 235000005822 corn Nutrition 0.000 title claims abstract description 71
- 230000008878 coupling Effects 0.000 title claims abstract description 23
- 238000010168 coupling process Methods 0.000 title claims abstract description 23
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 23
- 238000007599 discharging Methods 0.000 claims abstract description 51
- 239000008187 granular material Substances 0.000 claims abstract description 28
- 238000000926 separation method Methods 0.000 claims description 50
- 239000012535 impurity Substances 0.000 claims description 28
- 239000007787 solid Substances 0.000 claims description 14
- 238000005192 partition Methods 0.000 claims description 11
- 210000005069 ears Anatomy 0.000 description 6
- 239000000428 dust Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003306 harvesting Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000010813 municipal solid waste Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012840 feeding operation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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
-
- 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
- A01F11/00—Threshing apparatus specially adapted for maize; Threshing apparatus specially adapted for particular crops other than cereals
- A01F11/06—Threshing apparatus specially adapted for maize; Threshing apparatus specially adapted for particular crops other than cereals for maize, e.g. removing kernels from cobs
-
- 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
- A01F12/10—Feeders
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Threshing Machine Elements (AREA)
Abstract
The invention discloses an axial-flow type coaxial coupling corn threshing inner and outer double roller, belonging to the agricultural machinery field, comprising: a first helical feed head comprising a first conical head and a plurality of first helical blades; the first conical head is a conical cylinder body, and the large-diameter end of the first conical head is open; a first cylinder body which is a cylinder with one end open; the opening end of the first cylinder is coaxially and fixedly connected with the large-diameter end of the first spiral feeding head; a plurality of groups of granule discharging openings are formed in the first cylinder; a second helical feed head comprising a second conical head and a plurality of second helical blades; a second cylinder which is a cylinder and is coaxially disposed within the first cylinder; one end of the second cylinder is fixedly connected with the small-diameter end of the second spiral feeding head; the outer wall of the second cylinder is provided with a plurality of ribs which are arranged along the axial direction of the second cylinder; the outer wall of the first cylinder body is provided with a first threshing element, and the inner wall of the first cylinder body is provided with a second threshing element; the first cylinder and the second cylinder can respectively reversely rotate under the drive of the driving device.
Description
Technical Field
The invention belongs to the technical field of agricultural machinery, and particularly relates to an axial-flow type coaxial coupling inner and outer double cylinder for threshing corn.
Background
Corn is one of the main grain crops in China, and harvesting is one of the most critical and important links in the corn production process, and is the link consuming the most labor and time. With the popularization of corn harvesting mechanization, the grain direct harvesting technology gradually becomes a hot spot problem of the industry. The main current corn threshing device adopts a corn threshing cylinder with a longitudinal axial flow to thresh, separate and remove impurities from corn conveyed by a conveying device. However, the corn threshing cylinder with single longitudinal axial flow can only utilize one cylinder to work corn, the larger space inside is not reasonably utilized, serious space waste is caused, and the threshing efficiency of direct collection of corn kernels is limited.
The existing double-longitudinal axial flow corn threshing cylinder can improve threshing efficiency, but has a huge overall structure, and is not suitable for small-land work. Therefore, how to improve threshing efficiency of the corn threshing cylinder and simultaneously enable the threshing cylinder to occupy smaller space, and the threshing cylinder is suitable for small land work, and no technology capable of being used as a reference is available at present.
Disclosure of Invention
The invention aims to provide an axial-flow type coaxial coupling corn threshing inner and outer double-roller, which is provided with an inner threshing roller and an outer threshing roller, so that the inner space of the corn threshing roller with single longitudinal axial flow can be fully utilized, and the threshing efficiency can be improved on the premise of not increasing the occupied space.
The technical scheme provided by the invention is as follows:
an axial flow type coaxial coupling corn threshing inner and outer double roller, comprising:
a first helical feed head comprising a first conical head and a plurality of first helical blades;
wherein the first conical head is a conical cylinder; the large-diameter end of the first conical head is opened, and the small-diameter end of the first conical head is closed; the first spiral blade is spirally and fixedly arranged on the outer wall of the first conical head; the first conical head is provided with a plurality of ear feeding ports;
the first cylinder body is a cylinder, one end of the first cylinder body is open, and the other end of the first cylinder body is closed; the opening end of the first cylinder is coaxially and fixedly connected with the large-diameter end of the first spiral feeding head; the first cylinder body is provided with a plurality of groups of grain discharging openings for discharging corn grains in the first cylinder body;
a second helical feed head comprising a second conical head and a plurality of second helical blades; the second spiral blade is spirally and fixedly arranged on the outer wall of the second conical head;
wherein the second spiral feeding head is coaxially arranged in the first conical head, and the rotation directions of the second spiral blade and the first spiral blade are opposite;
a second cylinder which is a cylinder and is coaxially disposed within the first cylinder; one end of the second cylinder is fixedly connected with the small-diameter end of the second spiral feeding head, and the other end of the second cylinder is closed; the outer wall of the second cylinder is provided with a plurality of ribs, the ribs are arranged along the axial direction of the second cylinder, and the ribs are arrayed along the circumferential direction of the second cylinder;
a plurality of groups of first threshing elements which are arranged on the outer wall of the first cylinder body and are arranged at intervals along the axial direction of the first cylinder body;
a plurality of groups of second threshing elements which are arranged on the inner wall of the first cylinder body and are arranged at intervals along the axial direction of the first cylinder body;
wherein a gap is formed between the second threshing element and the convex rib; the first cylinder and the second cylinder can rotate under the drive of the driving device respectively, and the rotation directions of the first cylinder and the second cylinder are opposite.
Preferably, the axial flow type coaxial coupling corn threshing inner and outer double rollers further comprise:
a plurality of groups of first threshing separation elements which are arranged on the outer wall of the first cylinder body and are arranged at intervals along the axial direction of the first cylinder body;
a plurality of groups of second threshing separation elements which are arranged on the inner wall of the first cylinder body and are arranged at intervals along the axial direction of the first cylinder body;
wherein a gap is arranged between the second threshing separation element and the convex edge.
Preferably, the granule discharge port includes: a first granule discharge port and a second granule discharge port; the width of the first granule discharging port is smaller than that of the second granule discharging port;
the first granule discharging ports are arranged along the axial direction of the first barrel and are close to the opening end of the first barrel; a plurality of groups of second granule discharging openings are arranged along the axial direction of the first cylinder body and are close to the closed end of the first cylinder body;
each group of first grain discharging openings are positioned between two adjacent groups of first threshing elements; each group of the second grain discharging openings are positioned between two adjacent groups of first threshing separation elements or between the first threshing separation elements and the adjacent first threshing separation elements;
the positions of each group of second threshing elements are in one-to-one correspondence with the positions of each group of first threshing elements; the positions of the second threshing separation elements in each group are in one-to-one correspondence with the positions of the first threshing separation elements in each group.
Preferably, the rib is a hollow cylindrical structure, and two ends of the rib are closed.
Preferably, the first threshing element and the first threshing separation element are distributed in a spiral line around the axis of the first cylinder.
Preferably, the axial flow type coaxial coupling corn threshing inner and outer double rollers further comprise:
the first impurity removing plates are fixedly arranged on the outer wall of the closed end of the first cylinder body, and the first impurity removing plates are arrayed along the circumferential direction of the first cylinder body;
and the impurity discharging ports are arranged between two adjacent first impurity discharging plates.
Preferably, the axial flow type coaxial coupling corn threshing inner and outer double rollers further comprise:
the second impurity discharging plates are fixedly arranged on the outer wall of the closed end of the second cylinder body, and the second impurity discharging plates are arrayed along the circumferential direction of the second cylinder body.
Preferably, a baffle is fixedly arranged in the first conical head, the baffle is parallel to the end plate of the first conical head, and a cavity is formed between the baffle and the end plate of the first conical head;
wherein, the baffle plate is provided with an annular groove; the large diameter end of the second conical head is provided with an annular boss which is arranged in the annular groove in a matching way and can rotate relative to the annular groove.
Preferably, the axial flow type coaxial coupling corn threshing inner and outer double rollers further comprise:
and a plurality of through holes are formed on the partition plate and are positioned in the ring of the annular groove.
Preferably, the second cylinder body coaxially penetrates through a solid shaft, and the solid shaft is fixedly connected with the second cylinder body; a hollow shaft is coaxially and fixedly connected in the first conical head, and the hollow shaft is sleeved on the solid shaft in a hollow mode;
the driving device can respectively drive the solid shaft and the hollow shaft to reversely rotate.
The beneficial effects of the invention are as follows:
(1) The axial flow type coaxial coupling inner and outer double drums for threshing corn provided by the invention is provided with the inner and outer double threshing drums, and the outer threshing drum performs threshing operation on corn while the inner threshing drum also performs operation, so that the waste of a larger space in the threshing drum is avoided, and the corn threshing efficiency is improved.
(2) The axial flow type coaxial coupling inner and outer double rollers for corn threshing provided by the invention adopts the design of the double-screw feeding head, so that the large feeding operation can be effectively sorted and conveyed, the blockage of the feeding port is avoided, the corn feeding amount in unit time can be effectively improved, and the corn threshing efficiency is further improved; and the design of the groove, the boss and the through hole can avoid dust accumulation to influence the work of the feeding head.
(3) Threshing elements in the first cylinder body and ribs on the second cylinder body are matched for threshing, the quantity of the ribs is large, the ribs are relatively dense, the collision times to the ears are improved, and the corn threshing rate is reduced.
(4) The axial-flow coaxial coupling corn threshing inner and outer double rollers are improved on the basis of the existing single-longitudinal axial-flow corn threshing roller, so that the efficient utilization of the inner space is realized, the existing combine harvester can be well adapted, and the low-cost popularization and utilization in actual life are facilitated.
Drawings
Fig. 1 is a schematic diagram of the overall structure of an axial-flow type coaxial coupling inner and outer double drum for threshing corn according to the invention.
Fig. 2 is a schematic structural view of a second cylinder according to the present invention.
Fig. 3 is a schematic cross-sectional view of a first barrel and a second barrel according to the present invention.
Fig. 4 is a schematic cross-sectional view of a first barrel and a second barrel coupled threshing element according to the invention.
Fig. 5 is a schematic structural view of a partition plate of the first screw feeding head according to the present invention.
FIG. 6 is a schematic diagram of the cooperation of the second screw feeding head and the first screw feeding head according to the present invention.
Fig. 7 is a schematic diagram of the installation mode of the solid shaft and the hollow shaft according to the invention.
Fig. 8 is a schematic view of a tail cover plate of a first barrel according to the present invention.
Detailed Description
The present invention is described in further detail below with reference to the drawings to enable those skilled in the art to practice the invention by referring to the description.
As shown in fig. 1-8, the invention provides an axial-flow type coaxial coupling inner and outer double cylinder for threshing corn, which mainly comprises a first spiral feeding head 1, a second spiral feeding head 2, a first threshing element 3, a first threshing separation element 4, a first cylinder 5, a first impurity discharging plate 6, a second impurity discharging plate 7, a second threshing element 8, a second threshing separation element 9 and a second cylinder 10.
The first screw feed head 1 comprises a first conical head and a plurality of first screw blades; wherein the first conical head is a conical cylinder; the large-diameter end of the first conical head is opened, and the small-diameter end of the first conical head is closed by an end plate; the first spiral blade is spirally wound around the axis of the first conical head and fixed on the outer wall of the first conical head; the plurality of second helical blades are equally spaced.
The first cylinder 5 is a cylinder, one end of the first cylinder 5 is open, and the other end is closed by a tail cover plate 16. The tail cover plate 16 is connected with the first cylinder 5 through bolts, so that the first cylinder 5 is convenient to detach and install. The open end of the first cylinder 5 is fixedly connected coaxially with the large diameter end of the first screw feeding head 1, and the open end of the first cylinder 5 is the same as the large diameter end of the first screw feeding head 1 in diameter. The side wall of the first conical head is provided with a plurality of ear feeding ports 1a, and the ear feeding ports 1a are arranged close to the large-diameter section of the first conical head; corn ears enter the first barrel 5 through the ear feed port 1 a. The first cylinder 5 is provided with a plurality of groups of grain discharging openings for discharging corn grains in the first cylinder 5. Preferably, the edge of the ear feeding port 1a is rounded and curved, and one side of the ear feeding port 1a is provided along the bottom of the first helical blade to prevent the corn ear from getting stuck when entering.
The second screw feed head 2 comprises a second conical head and a plurality of second screw blades; the second conical head is conical, and the second spiral blades are spirally wound around the axis of the second conical head and fixed on the outer wall of the second conical head. The plurality of second helical blades are equally spaced. Wherein the second screw feeding head 2 is coaxially arranged in the first conical head, and the rotation directions of the second screw blade and the first screw blade are opposite.
The second cylinder 10 is a cylinder, and the length of the second cylinder 10 is slightly smaller than the length of the first cylinder 5; the second cylinder 10 is coaxially arranged within the first cylinder 5. One end of the second cylinder 10 is fixedly connected with the small diameter end of the second spiral feeding head 2, and the other end of the second cylinder 10 is closed. The outer wall of the second cylinder 10 is provided with a plurality of ribs 11, the ribs 11 are arranged along the axial direction of the second cylinder 10, and the ribs 11 are arrayed along the circumferential direction of the second cylinder 10. The number of the convex edges 11 on the second cylinder body 10 is large and relatively dense, and the concave plate-shaped arrangement of the round tubes is imitated, so that the collision times to corn ears are improved, and the unreleased rate in corn operation is reduced.
The multiple groups of first threshing elements 3 are arranged on the outer wall of the first cylinder 5, and the multiple groups of first threshing elements 3 are arranged at intervals along the axial direction of the first cylinder 5. The plurality of groups of second threshing elements 8 are arranged on the inner wall of the first cylinder 5 and are arranged at intervals along the axial direction of the first cylinder 5. The multiple groups of first threshing separation elements 4 are arranged on the outer wall of the first cylinder 5 and are arranged at intervals along the axial direction of the first cylinder 5. A plurality of groups of second threshing separation elements 9 which are arranged on the inner wall of the first cylinder 5 and are arranged at intervals along the axial direction of the first cylinder 5. The first cylinder body 5, the first threshing element 3, the first threshing separation element 4, the second threshing element 8, the second threshing separation element 9 and the grain discharging port form an outer threshing cylinder; the second cylinder 10 and the convex edge 11 form an inner threshing cylinder. Wherein, a gap is arranged between the second threshing element 8 and the second threshing separation element 9 and the convex rib 11 respectively. The first cylinder 5 and the second cylinder 10 can be rotated by the driving means, respectively, and the rotation directions of the first cylinder 5 and the second cylinder 10 are opposite.
Preferably, the granule discharging port includes: a first granule discharge port 5a and a second granule discharge port 5b; the width of the first granule outlet 5a is smaller than the width of the second granule outlet 5 b. Wherein, a plurality of groups of first granule discharging openings 5a are arrayed along the axial direction of the first cylinder 5, and a plurality of groups of first granule discharging openings 5a are arranged close to the opening end of the first cylinder 5; the plurality of sets of second granule discharging openings 5b are arrayed along the axial direction of the first cylinder 5, and the plurality of sets of second granule discharging openings 5b are disposed close to the closed end of the first cylinder 5. Each group of first grain discharging openings 5a are positioned between two adjacent groups of first threshing elements 3; each set of second threshing openings 5b is located between two adjacent sets of first threshing separation elements 4 or between the (last) set of first threshing elements 3 and its adjacent (first) set of first threshing separation elements 4. Wherein each group of first granule discharging openings 5a is a plurality of first granule discharging openings which are arrayed along the circumferential direction of the first cylinder 5. Each set of first granule discharge openings 5b is a plurality of second granule discharge openings, which are arrayed along the circumferential direction of the first cylinder 5. Wherein, the positions of each group of second threshing elements 8 are in one-to-one correspondence with the positions of each group of first threshing elements 3; the positions of the second threshing separation elements 9 of each group are in one-to-one correspondence with the positions of the first threshing separation elements 4 of each group. Wherein, the first threshing element 3 and the second threshing element 8 adopt rasp bar threshing elements, and the first threshing separation element 4 and the second threshing separation element 9 adopt spike tooth threshing separation elements.
The first threshing element 3, the second threshing element 8, the first threshing separation element 4 and the second threshing separation element 9 are arranged in the first cylinder body through the first grain discharging opening 5a and the second grain discharging opening 5b with different widths, so that a reasonable installation space is provided for arrangement of the first threshing element 3, the second threshing element 8, the first threshing separation element 4 and the second threshing separation element 9; the space between the first threshing element and the second threshing element is smaller, the number of threshing elements in the threshing section is increased, the beating frequency of the threshing elements to corn ears is improved, and the threshing efficiency and threshing rate are improved; meanwhile, the space between the first threshing separation element and the second threshing separation element is properly increased, so that the number of elements of the threshing separation section can be reduced, the quality of the roller is reduced, and the power consumption is reduced.
Preferably, each group of first threshing elements 3 comprises a plurality of first threshing separation elements, and the plurality of first threshing elements in the same group are arranged at intervals along the circumferential direction of the first cylinder 5; each group of the first threshing separation elements 4 comprises a plurality of first threshing separation elements, and the plurality of first threshing separation elements in the same group are arranged at intervals along the circumferential direction of the first cylinder 5. The first threshing element and the first threshing separation element are distributed in a plurality of spiral lines around the outer wall of the first cylinder body 5; correspondingly, the second threshing element and the second threshing separation element are distributed in a plurality of spiral lines on the inner wall of the first cylinder 5; therefore, the corn can flow more smoothly in the operation, the phenomenon of corn kernel blocking or blocking is reduced, and the corn threshing efficiency is improved.
As a further preferred embodiment, the rib 11 is provided in a hollow cylindrical (tube) structure, and both ends of the rib 11 are closed. The rib 11 is arranged to be of a hollow structure, so that the quality of the second cylinder can be reduced, and the power consumption can be reduced.
The first impurity discharging plates 6 are fixedly arranged on the outer wall of the closed end of the first cylinder 5, and the first impurity discharging plates 6 are arrayed along the circumferential direction of the first cylinder 5; the impurity discharging ports 5c are arranged between two adjacent first impurity discharging plates 6 and are used for discharging corncobs or other impurities in the first cylinder 5.
The second impurity discharging plates 7 are fixedly arranged on the outer wall of the closed end of the second cylinder 10, and the second impurity discharging plates 7 are arrayed along the circumferential direction of the second cylinder 10. The outer edge of the second impurity removing plate 7 is spaced from the inner wall of the first cylinder 5, so that interference between the outer edge and the inner wall in the rotation process of the second impurity removing plate is avoided. Under the guidance of the threshing separation element, the sundries are discharged through the first trash discharging plate 6 and the second trash discharging plate 7, so that the threshing operation is ensured to be carried out smoothly.
As shown in fig. 5-6, in one embodiment, a partition 1b is fixedly disposed in the first conical head, the partition 1b is parallel to the end plate of the first conical head, and a cavity is formed between the partition 1b and the end plate of the first conical head. Wherein, the baffle plate 1b is provided with an annular groove 102; the large diameter end of the second conical head is provided with an annular boss 201, and the annular boss 201 is embedded in the annular groove 102 in a matching way and can rotate relative to the annular groove 102. A plurality of through holes 101 are opened on the partition plate 1b, and are located at the inner side of the ring of the annular groove 102 near the center of the partition plate 1 b. Through setting up annular boss 201 on the major diameter terminal surface of second spiral feeding head 2, with the cooperation of annular groove 102 on the baffle 1b of first spiral feeding head 1 to set up through-hole 101 on the baffle 1b, can make the dust get into the cavity between baffle 1b and the end plate of first cone through-hole 101, prevent that the dust from piling up between first spiral feeding head 1 and second spiral feeding head 2, influence feeding head work.
7-8, in one embodiment, the second cylinder 10 is coaxially penetrated by a solid shaft 13, and the solid shaft 13 is fixedly connected with the second cylinder 10; the first conical head is internally and coaxially fixedly provided with a hollow shaft 12, and the hollow shaft 12 is sleeved on a solid shaft 13. The outer side of the tail cover plate 16 is fixedly connected with a flange 14, a bearing 15 is arranged at the center of the flange 14, meanwhile, bearings 15 are respectively arranged at two ends of the hollow shaft 12, and the solid shaft 13 is rotatably supported in the bearings 15.
The driving device can respectively drive the hollow shaft 12 and the solid shaft 13 to reversely rotate, so as to drive the first cylinder 5 and the second cylinder 10 to reversely rotate. The rotation speed of the first cylinder 5 and the second cylinder 10 can be respectively controlled to adjust threshing speeds of the inner threshing cylinder and the outer threshing cylinder.
Because the second threshing element 8 and the second threshing separation element 9 are arranged on the inner side of the first cylinder, the linear speed during rotation is reduced compared with that of the first threshing element 3 and the second threshing separation element 4, and the second threshing element and the second threshing separation element are matched with the opposite direction movement of the second cylinder 10 to operate corn, the rotating speeds of the inner threshing cylinder and the outer threshing cylinder are respectively regulated, so that the threshing can reach the ideal linear speed, and the threshing effect can be further improved.
The working principle of the axial-flow coaxial coupling inner and outer double rollers for corn threshing provided by the invention is as follows: the corn ear is guided by a first helical blade on the first helical feeding head 1 to enter a first-stage external threshing gap formed by the external threshing cylinder, a concave plate of the corn threshing separation device and a shell, and a second-stage internal threshing gap formed between the external threshing cylinder and the internal threshing cylinder. After entering the first spiral feeding head 1 through the ear feeding port 1a on the first spiral feeding head 1, the corn ears enter the second-stage threshing gap through the pushing of the second spiral blade on the second spiral feeding head 2. The concave plate and the shell of the corn threshing and separating device are matched with the first threshing element 3, the first threshing and separating element 4 and the first impurity removing plate 6 on the first cylinder body 5 to perform threshing and impurity removing; the second cylinder body 10 is interacted with the second threshing element 8, the second threshing separation element 9 and the second impurity discharging plate 7 to perform threshing and impurity discharging, so that the axial-flow coaxial coupling corn double-cylinder threshing operation of corn is realized. Wherein, concave plate and casing are corn threshing and separating device's original structure, and the description is omitted here.
The axial-flow type coaxial coupling inner and outer double drums for threshing corn provided by the invention are provided with the inner and outer double threshing drums, and the inner threshing drum performs threshing operation while the outer threshing drum performs threshing operation on corn, so that the space inside the outer threshing drum is fully utilized, and the corn threshing efficiency is improved. The double-screw feeding head is designed, so that large feeding quantity operation can be effectively sorted and conveyed, blockage of a feeding port is avoided, corn feeding quantity in unit time can be effectively improved, threshing efficiency of corn is improved, the two screw feeding heads are matched through the grooves and the bosses, and dust accumulation can be avoided from influencing the feeding head operation through the through hole design. According to the threshing device, threshing elements arranged in the first cylinder and ribs on the second cylinder are matched for threshing, the quantity of the ribs is large, the ribs are relatively dense, the collision times to ears are improved, and the corn threshing rate is reduced.
The axial-flow coaxial coupling corn threshing inner and outer double rollers provided by the invention are improved on the basis of the existing single-longitudinal axial-flow corn threshing roller, so that the efficient utilization of the inner space is realized, the existing combine harvester can be well adapted, and the low-cost popularization and utilization in actual life are facilitated.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (10)
1. An axial-flow type coaxial coupling corn threshing inner and outer double roller is characterized by comprising:
a first helical feed head comprising a first conical head and a plurality of first helical blades;
wherein the first conical head is a conical cylinder; the large-diameter end of the first conical head is opened, and the small-diameter end of the first conical head is closed; the first spiral blade is spirally and fixedly arranged on the outer wall of the first conical head; the first conical head is provided with a plurality of ear feeding ports;
the first cylinder body is a cylinder, one end of the first cylinder body is open, and the other end of the first cylinder body is closed; the opening end of the first cylinder is coaxially and fixedly connected with the large-diameter end of the first spiral feeding head; the first cylinder body is provided with a plurality of groups of grain discharging openings for discharging corn grains in the first cylinder body;
a second helical feed head comprising a second conical head and a plurality of second helical blades; the second spiral blade is spirally and fixedly arranged on the outer wall of the second conical head;
wherein the second spiral feeding head is coaxially arranged in the first conical head, and the rotation directions of the second spiral blade and the first spiral blade are opposite;
a second cylinder which is a cylinder and is coaxially disposed within the first cylinder; one end of the second cylinder is fixedly connected with the small-diameter end of the second spiral feeding head, and the other end of the second cylinder is closed; the outer wall of the second cylinder is provided with a plurality of ribs, the ribs are arranged along the axial direction of the second cylinder, and the ribs are arrayed along the circumferential direction of the second cylinder;
a plurality of groups of first threshing elements which are arranged on the outer wall of the first cylinder body and are arranged at intervals along the axial direction of the first cylinder body;
a plurality of groups of second threshing elements which are arranged on the inner wall of the first cylinder body and are arranged at intervals along the axial direction of the first cylinder body;
wherein a gap is formed between the second threshing element and the convex rib; the first cylinder and the second cylinder can rotate under the drive of the driving device respectively, and the rotation directions of the first cylinder and the second cylinder are opposite.
2. The axial flow coaxial coupled corn threshing inner and outer twin drum of claim 1, further comprising:
a plurality of groups of first threshing separation elements which are arranged on the outer wall of the first cylinder body and are arranged at intervals along the axial direction of the first cylinder body;
a plurality of groups of second threshing separation elements which are arranged on the inner wall of the first cylinder body and are arranged at intervals along the axial direction of the first cylinder body;
wherein a gap is arranged between the second threshing separation element and the convex edge.
3. The axial flow coaxial coupled corn threshing inner and outer twin drum of claim 2, wherein the granule discharge port comprises: a first granule discharge port and a second granule discharge port; the width of the first granule discharging port is smaller than that of the second granule discharging port;
the first granule discharging ports are arranged along the axial direction of the first barrel and are close to the opening end of the first barrel; a plurality of groups of second granule discharging openings are arranged along the axial direction of the first cylinder body and are close to the closed end of the first cylinder body;
each group of first grain discharging openings are positioned between two adjacent groups of first threshing elements; each group of the second grain discharging openings are positioned between two adjacent groups of first threshing separation elements or between the first threshing separation elements and the adjacent first threshing separation elements;
the positions of each group of second threshing elements are in one-to-one correspondence with the positions of each group of first threshing elements; the positions of the second threshing separation elements in each group are in one-to-one correspondence with the positions of the first threshing separation elements in each group.
4. The axial-flow type coaxial coupling inner and outer double cylinder for corn threshing as claimed in claim 3, wherein the convex edge is of a hollow cylindrical structure, and two ends of the convex edge are closed.
5. The axial flow coaxial coupled corn threshing inner and outer twin drum of claim 3 or 4, wherein said first threshing element and said first threshing separating element are distributed in a spiral line about the axis of said first barrel.
6. The axial flow coaxial coupled corn threshing inner and outer twin drum of claim 5, further comprising:
the first impurity removing plates are fixedly arranged on the outer wall of the closed end of the first cylinder body, and the first impurity removing plates are arrayed along the circumferential direction of the first cylinder body;
and the impurity discharging ports are arranged between two adjacent first impurity discharging plates.
7. The axial flow coaxial coupled corn threshing inner and outer twin drum of claim 6, further comprising:
the second impurity discharging plates are fixedly arranged on the outer wall of the closed end of the second cylinder body, and the second impurity discharging plates are arrayed along the circumferential direction of the second cylinder body.
8. The axial-flow type coaxial coupling corn threshing inner and outer double roller according to claim 7, wherein a partition plate is fixedly arranged in the first conical head, the partition plate is parallel to an end plate of the first conical head, and a cavity is formed between the partition plate and the end plate of the first conical head;
wherein, the baffle plate is provided with an annular groove; the large diameter end of the second conical head is provided with an annular boss which is arranged in the annular groove in a matching way and can rotate relative to the annular groove.
9. The axial flow coaxial coupled corn threshing inner and outer twin drum of claim 8, further comprising:
and a plurality of through holes are formed on the partition plate and are positioned in the ring of the annular groove.
10. The axial-flow type coaxial coupling inner and outer double corn threshing cylinder as claimed in claim 9, wherein the second cylinder body coaxially penetrates through a solid shaft, and the solid shaft is fixedly connected with the second cylinder body; a hollow shaft is coaxially and fixedly connected in the first conical head, and the hollow shaft is sleeved on the solid shaft in a hollow mode;
the driving device can respectively drive the solid shaft and the hollow shaft to reversely rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311716555.1A CN117413694B (en) | 2023-12-14 | 2023-12-14 | Axial-flow type coaxial coupling corn threshing inner and outer double rollers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311716555.1A CN117413694B (en) | 2023-12-14 | 2023-12-14 | Axial-flow type coaxial coupling corn threshing inner and outer double rollers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117413694A true CN117413694A (en) | 2024-01-19 |
| CN117413694B CN117413694B (en) | 2024-03-26 |
Family
ID=89526923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311716555.1A Active CN117413694B (en) | 2023-12-14 | 2023-12-14 | Axial-flow type coaxial coupling corn threshing inner and outer double rollers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117413694B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2615686A1 (en) * | 1987-05-29 | 1988-12-02 | Claas Ohg | SELF-PROPELLING COMBINE HARVESTER |
| CN202873374U (en) * | 2012-10-31 | 2013-04-17 | 江苏大学 | 360-degree axial flow threshing separation system |
| CN206728628U (en) * | 2017-05-17 | 2017-12-12 | 中联重机股份有限公司 | Coaxial reverse Double-drum sheller unit and harvester |
| CN110741815A (en) * | 2019-12-02 | 2020-02-04 | 吉林大学 | Formula high moisture content corn thresher is rubbed to axis of ordinates stream |
| CN212544691U (en) * | 2020-08-30 | 2021-02-19 | 河南农业大学 | Corn threshing device |
| CN218526853U (en) * | 2022-10-28 | 2023-02-28 | 潍柴雷沃智慧农业科技股份有限公司 | Threshing cylinder, threshing mechanism and harvester |
-
2023
- 2023-12-14 CN CN202311716555.1A patent/CN117413694B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2615686A1 (en) * | 1987-05-29 | 1988-12-02 | Claas Ohg | SELF-PROPELLING COMBINE HARVESTER |
| CN202873374U (en) * | 2012-10-31 | 2013-04-17 | 江苏大学 | 360-degree axial flow threshing separation system |
| CN206728628U (en) * | 2017-05-17 | 2017-12-12 | 中联重机股份有限公司 | Coaxial reverse Double-drum sheller unit and harvester |
| CN110741815A (en) * | 2019-12-02 | 2020-02-04 | 吉林大学 | Formula high moisture content corn thresher is rubbed to axis of ordinates stream |
| CN212544691U (en) * | 2020-08-30 | 2021-02-19 | 河南农业大学 | Corn threshing device |
| CN218526853U (en) * | 2022-10-28 | 2023-02-28 | 潍柴雷沃智慧农业科技股份有限公司 | Threshing cylinder, threshing mechanism and harvester |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117413694B (en) | 2024-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100584192C (en) | Grain threshing separation device | |
| CN105432257A (en) | Transverse axial flow threshing and separating device | |
| CN113039943B (en) | High-efficiency low-loss corn threshing combined machine | |
| CN101773024B (en) | Self-priming composite roller type pre-cut rice threshing device | |
| CN111713270A (en) | Open type spiral longitudinal axis threshing cylinder | |
| CN110972724A (en) | Inner and outer cylinder rotation type thresher for coarse cereal crops | |
| CN117413694B (en) | Axial-flow type coaxial coupling corn threshing inner and outer double rollers | |
| CN204948822U (en) | Rape thresher with breaker in advance | |
| CN208079878U (en) | A kind of grain harvesting machine cuts stream horizontal axis flow threshing device with double | |
| CN218526853U (en) | Threshing cylinder, threshing mechanism and harvester | |
| CN110741815A (en) | Formula high moisture content corn thresher is rubbed to axis of ordinates stream | |
| CN110972725A (en) | Centrifugal thresher is used to coarse cereals crop | |
| CN114631432B (en) | Full-wrap-angle threshing and separating device and threshing method | |
| US1744334A (en) | Thrashing machine | |
| CN117397468B (en) | Corn threshing double-roller with inner and outer coaxial twin longitudinal axial flow | |
| CN211353161U (en) | Inner and outer cylinder rotation type thresher for coarse cereal crops | |
| CN215188341U (en) | Axial double-cavity sorghum threshing machine | |
| CN112314162B (en) | Rice harvester | |
| CN211020097U (en) | Formula high moisture content corn thresher is rubbed to axis of ordinates stream | |
| CN212064894U (en) | Peanut picking roller for peanut harvester and peanut harvester | |
| CN211020098U (en) | Large-diameter spiral inverted cone reducing longitudinal axial flow threshing cylinder of combine harvester | |
| CN210519464U (en) | Transverse and longitudinal combined threshing and separating device and combine harvester | |
| CN221082085U (en) | Multi-tangential-flow roller threshing and separating device for harvester | |
| CN216017880U (en) | Threshing cylinder for multifunctional grain combine harvester | |
| CN212232220U (en) | Combined corn thresher |
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 |