阅读说明：本技术 一种具有高效收割及精细脱粒的小米收割机 (Millet harvester with high-efficient harvesting and fine threshing functions ) 是由 何卫淼 余文胜 应博凡 冯基平 梁振海 孙飞龙 于 2020-06-08 设计创作，主要内容包括：本发明一种具有高效收割及精细脱粒的小米收割机,包括割台、脱粒仓及输送部,割台的两侧设置有加长型防护罩,其上设置有分禾器及割刀装置,割台的内设有割台搅龙,割台搅龙上设有输出部；脱粒仓包括动力输入端、脱粒搅龙,脱粒仓的外壁上设有网筛,脱粒仓内设有脱粒机构,脱粒机构的输入端还设有精细脱粒装置。本发明割台可根据小米穗的高度,对割台底板加长,使小米割倒后顺利的倒伏在割台搅龙上,弧形板的设置,避免掉穗；内分禾杆的设置,提高收割质量和效率；通过设置的精细脱粒装置和后置脱粒机构,实现二级脱粒,提高小米的脱粒比例,减少小米损失率,确保小米脱粒的干净度,减少脱粒时间,提高脱粒效率。(The invention relates to a millet harvester with high-efficiency harvesting and fine threshing, which comprises a header, a threshing bin and a conveying part, wherein elongated protective covers are arranged on two sides of the header, a divider and a cutter device are arranged on the elongated protective covers, a header auger is arranged in the header, and an output part is arranged on the header auger; the threshing bin comprises a power input end and a threshing screw conveyor, a mesh screen is arranged on the outer wall of the threshing bin, a threshing mechanism is arranged in the threshing bin, and the input end of the threshing mechanism is also provided with a fine threshing device. The header can lengthen the header bottom plate according to the height of the millet ears, so that the millet is smoothly laid on the header auger after being cut, and the arrangement of the arc-shaped plate avoids ear dropping; the arrangement of the internal dividing straw improves the harvesting quality and efficiency; the secondary threshing is realized by the fine threshing device and the rear threshing mechanism, the threshing proportion of the millet is improved, the loss rate of the millet is reduced, the cleanliness of the millet threshing is ensured, the threshing time is shortened, and the threshing efficiency is improved.)

1. A millet harvester with high-efficiency harvesting and fine threshing is characterized by comprising:

the header (1): elongated protective covers (101) are arranged on two sides of the cutting table, a grain divider (102) is arranged at the front end of each elongated protective cover (101), a cutting knife device (103) is arranged between the two elongated protective covers (101), a cutting table auger (104) is rotatably connected inside the cutting table (1), and an output part (105) for inputting millet stalks into the conveying part (3) is arranged at the position, corresponding to the conveying part (3), on the cutting table auger (104);

threshing bin (2): the threshing device is provided with a power input end (201) and a threshing screw feeder (202) connected with the power input end (201), wherein the threshing screw feeder (202) extends into a threshing bin (2), a mesh screen (203) is arranged on the outer wall of the threshing bin (2), a threshing mechanism (204) is arranged in the threshing bin (2), and the input end of the threshing mechanism (204) is also provided with a fine threshing device (205);

conveying section (3): the two ends of the threshing device are respectively matched with the output part (105) of the header (1) and the threshing auger (202) of the power input end (201) of the threshing bin (2) for use.

2. The millet harvester with high-efficiency harvesting and fine threshing according to claim 1, characterized in that the rear side of the upper surface of the header (1) is hinged with a lifting frame (107) through a hinge rod (106), the lower surface of the lifting frame (107) is hinged with a lifting cylinder (108), the lower surface of the lifting cylinder (108) is hinged with the upper surface of the header (1) through a hinge seat, the front end of the lifting frame (107) is provided with a reel device, the reel device comprises a reel (109), the cross section of the reel (109) is triangular, and the periphery of the reel (109) is provided with three reel rotating shafts (110) which are parallel to each other.

3. The millet harvester with high-efficiency harvesting and fine threshing of claim 1, characterized in that the upper surface of the grain divider (102) is fixedly connected with an arc-shaped plate (111), both ends of the inner side surfaces of the header (1) and the grain divider (102) are fixedly connected with inner straw (112), and the output part (105) is provided with a telescopic toothed bar (113).

4. The millet harvester with efficient harvesting and fine threshing of claim 2, characterized in that a plurality of reel teeth (114) are fixedly installed on the lower surface of the reel rotating shaft (110), the reel teeth (114) are uniformly distributed along the length direction of the reel rotating shaft (110), and the lower ends of the reel teeth (111) are integrally provided with arc-shaped hooks (115).

5. The millet harvester with high-efficiency harvesting and fine threshing of claim 1, wherein the fine threshing device (205) comprises a plurality of threshing teeth (206), the threshing teeth (206) are arranged along the circumference of the width disc (207) at intervals, a plurality of threshing teeth units (208) are arranged on the threshing teeth (206), the threshing teeth (208) are integrally mounted on the threshing teeth (206), the threshing teeth (206) further comprises a threshing striking plate, and the threshing striking plate is positioned on one side of the threshing teeth (208).

6. The millet harvester with high-efficiency harvesting and fine threshing as claimed in claim 1, characterized in that a plurality of width discs (207) are arranged in the threshing bin (2), the width discs (207) are connected through a central shaft (209), the central shaft (209) is connected with the power input end (201), the fine threshing device (205) and the threshing mechanism (204) are respectively fixed on the corresponding width discs (207) and rotate together with the central shaft (209).

7. The millet harvester with efficient harvesting and fine threshing of any one of claims 1 or 6, characterized in that said threshing mechanism (204) comprises a plurality of threshing teeth bars (210), a plurality of said threshing teeth bars (210) are arranged along the circumference of the width disc (207) at intervals, the threshing teeth bars (210) are arranged along the length direction and provided with a plurality of threshing bars (211), said threshing teeth bars (210) partially extend into the fine threshing device (205) and are fixedly mounted with the width disc (207) in the fine threshing device (205), said threshing bars (211) are all located in the threshing mechanism (204).

8. The millet harvester with high-efficiency harvesting and fine threshing of claim 5, characterized in that the circumferential wall of the breadth pan (207) is uniformly provided with clamping grooves (212), two ends of the threshing teeth (206) are respectively and fixedly provided with a connecting plate (213), the connecting plate (213) is fixedly arranged with the breadth pan (207), one end of the threshing teeth (210) is fixedly arranged with the connecting plate (213), and the other end and the middle position of the threshing teeth (211) are clamped in the clamping grooves (212).

9. The millet harvester with high efficiency harvesting and fine threshing of claim 5, characterized in that the threshing teeth unit (208) has an arc-shaped cross section, and the threshing rod (211) is arranged perpendicular to the threshing teeth rod (210).

10. The millet harvester with high harvesting efficiency and fine threshing function as claimed in claim 1, wherein the mesh screen (203) is an integral structure, and a plurality of mesh holes are integrally formed in the mesh screen (203).

Technical Field

The invention belongs to the technical field of agricultural mechanical equipment, and particularly relates to a millet harvester with efficient harvesting and fine threshing functions.

Background

With the high-speed development of the economy of China, the development of agricultural machinery industry is also emphasized, the combine harvester is widely applied to the harvesting of crops, the harvesting efficiency is greatly improved, the labor intensity is reduced, and the harvester for harvesting millet is also continuously improved.

The header and threshing are the main components of a millet harvester, the current millet harvesting is mainly realized by modifying a crawler-type harvester and a wheel-type harvester, because of the growth characteristics of millet, the ears of millet are low and the seeds are small and light, the ears of millet and the stalks are mutually interlaced and difficult to separate, during harvesting, the header has poor separation effect on the ears of millet, the ears of both sides of the header are easily twisted, the ears of the header drop, poor feeding, winding of a reel and the like are easily caused, the original header has a poor effect on millet harvesting, and the header loss is large.

The existing harvester for millet harvesting is characterized in that a threshing device of the existing harvester usually comprises a threshing bin, a rotating shaft arranged in the threshing bin and a threshing shaft arranged on the rotating shaft.

Disclosure of Invention

Aiming at the problems in the prior art, the invention aims to provide a millet harvester which can improve the harvesting quality and efficiency, improve the cleanliness, reduce the threshing time and improve the threshing efficiency and has the functions of efficient harvesting and fine threshing.

The invention is realized by the following technical scheme:

the millet harvester with high-efficiency harvesting and fine threshing is characterized by comprising:

the header: two sides of the cutting table are provided with elongated protective covers, the front ends of the elongated protective covers are provided with a divider, a cutting knife device is also arranged between the two elongated protective covers, the interior of the cutting table is rotatably connected with a cutting table auger, and an output part for inputting millet stalks into the conveying part is arranged at the position, corresponding to the conveying part, on the cutting table auger;

a threshing bin: the threshing mechanism is provided with a power input end and a threshing screw conveyor connected with the power input end, wherein the threshing screw conveyor extends into a threshing bin, a mesh screen is arranged on the outer wall of the threshing bin, a threshing mechanism is arranged in the threshing bin, and the input end of the threshing mechanism is also provided with a fine threshing device;

a conveying part: the two ends of the threshing mechanism are respectively matched with the output part of the header and a threshing auger at the power input end of the threshing bin for use.

Further, the upper surface rear side of header is provided with the crane through the hinge bar is articulated, the lower surface of crane articulates there is lift cylinder, lift cylinder's lower surface articulates in the upper surface of header through articulated seat, the front end of crane is provided with reel device, reel device includes reel, the cross-section of reel is triangle-shaped, and the periphery of reel is provided with three reel pivots that are parallel to each other.

Furthermore, the upper surface of the divider is fixedly connected with an arc-shaped plate, both ends of the inner side surfaces of the cutting table and the divider are fixedly connected with inner divider rods, and the output part is provided with a telescopic toothed bar.

Furthermore, a plurality of reel teeth are fixedly arranged on the lower surface of the reel rotating shaft, the reel teeth are uniformly distributed along the length direction of the reel rotating shaft, and arc-shaped hooks are integrally arranged at the lower ends of the reel teeth.

Furthermore, meticulous thresher includes a plurality of threshing teeth spare, and is a plurality of threshing teeth spare is the interval along width of cloth dish circumference and arranges and set up a plurality of threshing teeth unit on the threshing teeth spare, threshing teeth unit an organic whole install in on the threshing teeth spare, still including threshing on the threshing teeth spare and hit the board, threshing hits the board and is located threshing teeth unit one side.

Furthermore, a plurality of amplitude discs are arranged in the threshing bin, the amplitude discs are connected through a central shaft, the central shaft is connected with the power input end, and the fine threshing device and the threshing mechanism are respectively fixed on the amplitude discs corresponding to each other and rotate along with the central shaft.

Further, threshing mechanism includes a plurality of threshing teeth pole, and is a plurality of threshing teeth pole is the interval along the width of cloth dish circumference and arranges and set up a plurality of threshing teeth pole along length direction, threshing teeth pole portion extends to in the meticulous thresher to with the width of cloth dish fixed mounting who is arranged in meticulous thresher, threshing teeth pole all is arranged in threshing mechanism.

Furthermore, clamping grooves are uniformly distributed on the peripheral wall of the breadth disc, connecting plates are fixedly arranged at two ends of the threshing tooth part respectively, the connecting plates and the breadth disc are fixedly arranged, one end of the threshing tooth rod is fixedly arranged with the connecting plates, and the other end and the middle position of the threshing tooth rod are clamped in the clamping grooves.

Furthermore, the cross section of the threshing tooth unit is of an arc structure, and the threshing rod is vertical to the threshing tooth rod.

Further, the mesh screen is an integral structure, and a plurality of mesh holes are integrally formed in the mesh screen in a punching mode.

The header can lengthen the header bottom plate according to the height of the millet ears, so that the millet is smoothly lodged on the feeding auger after being cut and does not lodge forwards; the arrangement of the internal dividing straws ensures that the millet stalks can smoothly enter the header to avoid winding on the reel, thereby improving the harvesting quality and efficiency; the primary threshing of the millet ears is realized through the arranged fine threshing device, and the fine threshing effect is realized by utilizing the threshing teeth, so that the fine threshing device is particularly suitable for threshing small-particle grains such as the millet ears; the rear threshing mechanism is combined to realize secondary threshing, so that the threshing proportion of millet is improved, the loss rate of millet is reduced, the cleanliness of millet threshing is ensured, the threshing time is reduced, and the threshing efficiency is improved.

Drawings

FIGS. 1-2 are schematic views of the overall structure of the present invention;

3-4 are schematic structural views of the header of the present invention;

FIG. 5 is a schematic view of the structure with the header auger removed;

FIG. 6 is a schematic view of the mounting structure of the lifting frame and the reel;

FIG. 7 is a schematic structural view of the output portion of the header auger;

FIG. 8 is a schematic view of the internal structure of a threshing bin according to the present invention;

FIG. 9 is a schematic view of the threshing chamber with the outer casing removed;

in the figure, 1-cutting table, 101-lengthened protective cover, 102-divider, 103-cutter device, 104-cutting table screw feeder, 105-output part, 106-hinged rod, 107-lifting frame, 108-lifting cylinder, 109-reel, 110-reel rotating shaft, 111-arc-shaped plate, 112-inner divider rod, 113-telescopic toothed rod, 114-reel tooth, 115-arc-shaped hook, 2-threshing bin, 201-power input end, 202-threshing screw feeder, 203-mesh screen, 204-threshing mechanism, 205-fine threshing device, 206-threshing toothed piece, 207-amplitude disc, 208-threshing tooth unit, 209-central shaft, 210-threshing toothed rod, 211-threshing rod, 212-clamping groove and 213-connecting plate.

Detailed Description

The invention is further described in detail and specific embodiments are given below with reference to the accompanying drawings.

As shown in fig. 1-2, the present invention relates to a millet harvester with high-efficiency harvesting and fine threshing, comprising: header 1, threshing warehouse 2 and conveying part 3 connecting header 1 and threshing warehouse 2.

As shown in fig. 3-7, the header 1 changes the existing header structure, so that the harvesting quality and the harvesting efficiency are further improved. The specific structure comprises a header 1 and a divider 102, wherein an arc-shaped plate 111 is fixedly connected to the upper surface of the divider 102, millet stalks are conveniently separated, a lengthened protective cover 101 is arranged between the header 1 and the divider 102, the length of the lengthened protective cover 101 is increased through firstly increasing the length of a bottom plate, and then the length of the lengthened protective cover 101 is increased, so that after the millet stalks are separated, the bottom of the millet stalks is pushed forward, and the upper ends of the millet stalks tilt backwards and fall forwards to enter the header auger 104, so that ear drop is avoided; in addition, the lengthened protective cover 101 enables the divider 102 to extend out of the header 1 for a longer distance, the cutting knife device 103 is fixedly installed at the front end of the lengthened protective cover 101, the header auger 104 is rotatably connected inside the header 1, the output portion 105 is arranged on the header auger 104, the telescopic toothed bar 113 is arranged on the output portion 105, and the arrangement of the telescopic toothed bar 113 facilitates shifting and outputting millet stalks fed into the header auger 104 to enter the conveying portion 3 for conveying.

The articulated crane 107 that is provided with through hinge bar 106 of the upper surface rear side of header 1, the lower surface of crane 107 articulates there is lift cylinder 108, lift cylinder 108's lower surface articulates in header 1's upper surface through articulated seat, lift frame 107's front end is provided with reel device, lift cylinder 108's setting can be taken lift frame 107 to rotate round hinge bar 106, and then realize that the front end goes up and down, can change the height, can adapt to the not rice ear of grain of co-altitude, simultaneously can separate millet stem stalk by force, safety and stability is improved.

The reel device comprises a reel 109, the section of the reel 109 is triangular, three reel rotating shafts 110 which are parallel to each other are arranged on the periphery of the reel 109, a plurality of reel teeth 114 are fixedly arranged on the lower surface of each reel rotating shaft 110, the reel teeth 114 are uniformly distributed along the length direction of the reel rotating shaft 110, arc-shaped hooks 115 are integrally arranged at the lower ends of the reel teeth 114, inner dividing rods 112 are fixedly connected to two ends of the inner side surfaces of the header 1 and the divider 102, and the inner dividing rods 112 are arranged to shift millet stalks inside the header 1 to be folded inwards so as to facilitate harvesting.

The header 1 of the invention can be adjusted according to different heights of millet stalks, and at this time, the lifting cylinder 108 can be controlled to extend out, so as to lift the lifting frame, and then the height of the reel 109 can be increased, corresponding to ears of rice with different heights, meanwhile, because the two ends of the lifting cylinder 108 are hinged, the interference can not be caused during adjustment, the rotation direction and the stress angle belong to the prior art, and are not described in detail.

As shown in fig. 8-9, the threshing bin 2 changes the traditional structure with only one-stage threshing, and the fine threshing device is added, so that the two-stage threshing of the millet ears is realized, and the threshing is ensured to be cleaner.

The internal concrete structure of threshing warehouse 2 includes power input 201, the screw feeder 202 of threshing that is connected with power input 201, the screw feeder 202 of threshing extends to threshing warehouse 2 in, it forms mesh screen 203 to be provided with a plurality of apertures on threshing warehouse 2's the outer wall, center pin 209 is connected with power input 201, meticulous thresher 205 and threshing mechanism 204 are fixed respectively on the width of cloth dish 207 that corresponds separately, and rotate together along with center pin 209, power input 201 includes the hydro-cylinder, the reversing gear case, this power input 201 is prior art, its theory of operation and process are no longer described in detail.

In order to ensure clean and efficient threshing, a fine threshing device 205 is arranged in the threshing bin 2 besides a threshing mechanism, the fine threshing device 205 is arranged at the input end of the threshing mechanism 204, the fine threshing device 205 comprises a plurality of threshing teeth 206, the plurality of threshing teeth 206 are distributed at intervals along the circumference of a breadth disc 207, and a plurality of threshing teeth units 208 with arc-shaped cross sections are uniformly distributed on the threshing teeth 206; threshing mechanism 204 includes a plurality of threshing teeth pole 210, and a plurality of threshing teeth pole 210 is the interval along the circumference of width of cloth dish 207 and arranges, and threshing teeth pole 210 goes up the equipartition and is provided with threshing teeth pole 211 of a plurality of cylindric structures, and this threshing teeth pole 211 sets up perpendicularly threshing teeth pole 210. Wherein, threshing teeth 206 and threshing teeth 210 are provided with a plurality of teeth along the axial direction of the breadth disc 207, and the two teeth are correspondingly arranged, the peripheral wall of the breadth disc 207 is uniformly provided with a clamping groove 212, two ends of the threshing teeth 206 are respectively and fixedly provided with a connecting plate 213, the connecting plate 213 and the breadth disc 207 are fixedly arranged, one end of the threshing teeth 210 and the connecting plate 213 are fixedly arranged, and the other end and the middle position of the threshing teeth 211 are clamped in the clamping groove 212.

The inside course of work in threshing warehouse, power input end 201 drive threshing screw 202 work, and the millet ear of grain enters into threshing warehouse 2 along with the screw piece in, threshes through threshing teeth unit 208 on the meticulous thresher 205 earlier, then carries threshing mechanism 204 again on, threshes through beating of threshing rod 211, realizes that the second grade is threshed, and threshing effect is better, and efficiency is higher.

According to the invention, through improving the header 1, the conveying part 2 and the threshing bin 3, automatic harvesting and threshing are realized, the quality and the efficiency are improved, the harvested millet stems enter the threshing bin 3 through the conveying part 2 to enter the threshing bin 3 for secondary threshing, the threshing is cleaner, and the threshing efficiency is improved.