Broom corn millet harvester

Abstract

The invention relates to the technical field of broom corn millet harvesting, and discloses a broom corn millet harvester which comprises a mounting portal frame, a header is fixedly mounted on the inner side of the mounting portal frame, a cutter frame rod is arranged on the inner side of a beam splitting frame, a guide lead screw is fixedly connected to the interior of the header, a sliding table is slidably connected to the exterior of the guide lead screw, and the sliding table is fixedly connected to the inner side of the beam splitting frame. And the top of the eccentric wheel is rotationally connected with a linkage rod. According to the broom corn millet harvester, broom corn millet stems are classified and bundled through a dividing shovel structure of a bundle splitting frame, and after the broom corn millet stems enter a cutter frame rod area, a stepping motor drives a first belt wheel, the first belt wheel drives two eccentric wheels, the eccentric wheels drive a linkage rod to do eccentric motion, and the cutter frame rod is controlled to do rapid left-right reciprocating motion on the inner side of the bundle splitting frame; the hydraulic oil cylinder is designed to control the whole header to ascend and descend, the stubble cutting height can be adjusted, the situation of missing cutting is reduced, and therefore the problems that a large number of grains fall off and are lost in the harvesting process are solved.

Description

Technical Field

[0001] The invention relates to the technical field of millet harvesting, in particular to a millet harvester. Background Art

[0002] A millet harvester refers to an integrated millet harvesting machine that can complete harvesting and threshing at one time, and concentrate the grains into a storage bin, and then transport the grains to a transport vehicle through a transmission structure. It is commonly used in the agricultural field. The harvesting machinery can greatly improve the efficiency of crop harvesting, save a lot of manpower and material resources consumed in manual harvesting, and improve agricultural production efficiency.

[0003] However, there is currently no production machinery specifically for millet. Existing harvesting technology generally uses wheat harvesters for harvesting. However, there are the following differences between millet and wheat fruits: 1) The shape and size of millet and wheat fruits are different; 2) The husk and grain of millet are easier to separate and fall off than those of wheat; therefore, the harvesting and threshing system of wheat harvesters is not suitable for the physical characteristics of millet, which may cause millet grains to break or leaves to be damaged, and large-scale grain shedding during the harvesting process, affecting the quality and yield of millet.

[0004] Therefore, in order to solve the technical problems existing in the above-mentioned prior art when harvesting millet, a millet harvester is proposed. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] In view of the shortcomings of the prior art, the present invention provides a millet harvester, which has the advantage of being able to reduce the harvesting losses caused by the large amount of millet grains falling off during the harvesting process. It solves the problem in the above-mentioned background technology that when the existing millet harvesting is replaced by a wheat harvester, the physical characteristics of millet are not suitable, which easily causes a large amount of grains to fall off during harvesting and losses.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose of reducing the harvesting loss caused by a large amount of millet grains falling off during the harvesting process, the present invention provides the following technical solution: a millet harvester comprises a mounting door frame, a header is fixedly mounted on the inner side of the mounting door frame, a reciprocating cutting structure is arranged on the inner side of the header, and a threshing assembly is arranged on the rear side of the mounting door frame;

[0009] The reciprocating cutting structure comprises a beam splitter frame fixed on the inner side of the cutting table, a cutting knife frame rod is arranged on the inner side of the beam splitter frame, a guide screw is fixedly connected to the inside of the cutting table, a slide is slidably connected to the outside of the guide screw, an eccentric wheel is rotatably connected to the inner bottom wall of the cutting table, and a linkage rod is rotatably connected to the top of the eccentric wheel;

[0010] The threshing assembly includes a feed track fixedly connected to the rear side of the mounting door frame, the inner side of the feed track is transmission-connected with a conveyor belt, the rear side of the feed track is fixedly connected to a threshing drum, a beating piece is movably installed inside the threshing drum, and a screen drum is fixedly connected inside the threshing drum.

[0011] Preferably, the beam splitting frame includes a number of interconnected straw splitting shovel structures, each of the straw splitting shovels is provided with a through groove on the inner side, the distance between each adjacent two straw splitting shovels is 2 cm, a number of harvesting blades are welded to the outside of the cutting knife frame rod, the distance between each adjacent two harvesting blades is 2 cm, and positioning plates are fixedly connected to the left and right ends of the cutting knife frame rod.

[0012] Preferably, the inner bottom wall of the cutting table is rotatably connected to two first pulleys, the number of the eccentric wheels is two, the bottoms of the two eccentric wheels are coaxially fixed with the tops of the two first pulleys respectively, and a stepper motor is fixedly installed on the bottom of the cutting table, and the output end of the stepper motor is fixedly connected to the bottom of one of the eccentric wheels.

[0013] Preferably, the number of the connecting rods is two, and the two connecting rods each include a first connecting rod rotatably connected to the top of the eccentric wheel, and the two first connecting rods are rotatably connected to a second connecting rod at the end facing away from the eccentric wheel. The number of the slides is two, and the front sides of the two slides are respectively fixedly connected to the rear ends of the two positioning plates, and the two second connecting rods are respectively rotatably connected to the rear sides of the two slides at the end facing away from the first connecting rod.

[0014] Preferably, a hydraulic cylinder is fixedly installed on the inner side of the mounting mast, a hydraulic push rod is movably connected to the top of the hydraulic cylinder, the top of the hydraulic push rod is fixedly connected to the bottom of the cutting table, a straw delivery assembly is provided on the inner side of the cutting table, the straw delivery assembly includes a straw axis frame and a conveying auger which are respectively rotatably connected to the inner side of the cutting table, and the outside of the straw axis frame is fixedly connected to grabbing rake tooth rods distributed in a ring array.

[0015] Preferably, the exterior of the conveying auger is provided with two spiral layers, and the two spiral layers are symmetrical structures with each other. The left side of the cutting table is rotatably connected with two second pulleys, and the right ends of the two second pulleys are coaxially fixed to the reed shaft frame and the left end of the conveying auger respectively. A first reduction motor is fixedly installed on the left side of the cutting table, and the output end of the first reduction motor is fixedly connected to the left end of one of the second pulleys.

[0016] Preferably, one side of the conveyor belt is close to the bottom of the conveying auger, a hopper is fixedly installed on the left side of the top of the threshing cylinder, the top of the hopper is connected to the feeding track, the other side of the conveyor belt is close to the top of the hopper, a second reduction motor is fixedly installed on the front side of the threshing cylinder, the beating member includes an auger shaft fixedly connected to the output end of the second reduction motor, and a grinding roller group is movably installed outside the auger shaft.

[0017] Preferably, a mounting frame is fixedly mounted on the outside of the auger shaft, a racket rod is rotatably connected to the outside of the mounting frame, a slag discharge bin is fixedly connected to the rear side of the threshing drum and one side close to the rear end of the auger shaft, and a collecting box is fixedly connected to the bottom of the threshing drum.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the present invention provides a millet harvester having the following beneficial effects:

[0020] 1. The millet harvester is installed by arranging the door frame and the cutting platform at the front side of the harvesting machine, and using the dividing shovel structure of the beam splitting frame to classify and bundle the millet stalks. When the stalks enter the area of ​​the cutting knife frame rod, the first pulley is driven by the stepper motor, and the two eccentric wheels are driven by the first pulley. The eccentric wheels drive the connecting rod to make eccentric movement, and the cutting knife frame rod is controlled to quickly reciprocate left and right inside the beam splitting frame, so as to quickly cut the millet stalks.

[0021] 2. The millet harvester is designed with a hydraulic cylinder to control the lifting and lowering of the cutting platform as a whole, and can adjust the cutting height to reduce the possibility of missed cutting, thereby reducing the problem of large-scale grain shedding and loss during harvesting.

[0022] 3. The millet harvester delivers the harvested stalks into the conveying auger through the grabbing rake teeth rod of the rake shaft frame, and the symmetrically arranged spiral layers deliver the stalks and fruits on both sides into the feeding track. The threshing drum grinds and beats them through the grinding roller group and the beating rod respectively, so as to accelerate the efficiency of grain shedding. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a right view of the structure of a millet harvester according to the present invention;

[0024] Figure 2 A top view of the door frame structure of the present invention is provided;

[0025] Figure 3 for Figure 1 Top view of the header structure in perspective;

[0026] Figure 4 for Figure 3 Schematic diagram of the conveying auger structure in perspective;

[0027] Figure 5 for Figure 3 Schematic diagram of the beam splitter structure in the viewing angle;

[0028] Figure 6 for Figure 5 Cross-sectional view of perspective;

[0029] Figure 7 for Figure 6 Schematic diagram of the first pulley structure in perspective;

[0030] Figure 8 It is a schematic diagram of the structure of the beam splitter frame and the cutting knife frame rod of the present invention;

[0031] Fig. 9 for Figure 1 Schematic diagram of the threshing cylinder structure in perspective.

[0032] In the figure: 1. Installation gantry; 2. Cutting table; 3. Reciprocating cutting structure; 301. Beam splitter; 302. Cutting knife frame rod; 303. Guide screw; 304. Slide; 305. Eccentric wheel; 306. Link rod; 3061. First connecting rod; 3062. Second connecting rod; 4. Positioning plate; 5. First pulley; 6. Stepping motor; 7. Hydraulic cylinder; 8. Rice delivery assembly; 801. Rice-moving shaft frame; 802. Conveying auger; 803 , grab rake tooth rod; 804, spiral layer; 9, threshing assembly; 901, feeding track; 902, conveyor belt; 903, threshing cylinder; 904, beating piece; 9041, auger shaft; 9042, grinding roller group; 9043, mounting frame; 9044, beating rod; 905, screen cylinder; 10, second pulley; 11, first reduction motor; 12, hopper; 13, second reduction motor; 14, slag discharge trough; 15, collecting box. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-9 A millet harvester comprises a mounting frame 1, a cutting platform 2 is fixedly mounted on the inner side of the mounting frame 1, a reciprocating cutting structure 3 is arranged on the inner side of the cutting platform 2, and a threshing assembly 9 is arranged on the rear side of the mounting frame 1;

[0035] The reciprocating cutting structure 3 includes a beam splitter frame 301 fixed to the inner side of the cutting table 2, a cutter frame rod 302 is arranged on the inner side of the beam splitter frame 301, a guide screw 303 is fixedly connected to the inside of the cutting table 2, a slide 304 is slidably connected to the outside of the guide screw 303, an eccentric wheel 305 is rotatably connected to the inner bottom wall of the cutting table 2, and a linkage rod 306 is rotatably connected to the top of the eccentric wheel 305;

[0036] The threshing assembly 9 includes a feed track 901 fixedly connected to the rear side of the mounting door frame 1, a conveyor belt 902 is transmission-connected to the inner side of the feed track 901, a threshing drum 903 is fixedly connected to the rear side of the feed track 901, a beating piece 904 is movably installed inside the threshing drum 903, and a screen drum 905 is fixedly connected inside the threshing drum 903.

[0037] Furthermore, the beam splitting frame 301 includes a number of interconnected straw splitting shovel structures, each straw splitting shovel has a through groove on its inner side, and the distance between each two adjacent straw splitting shovels is 2 cm. A number of harvesting blades are welded to the outside of the cutting blade holder rod 302, and the distance between each two adjacent harvesting blades is 2 cm. Positioning plates 4 are fixedly connected to the left and right ends of the cutting blade holder rod 302.

[0038] Specifically, the beam splitting frame 301 is composed of a plurality of mutually connected grain splitting shovels, the gap between each grain splitting shovel is set to 2 cm, and the diameter of the stalks of general millet is 0.4-0.6 cm, so the stalks of millet can be bundled and gathered in the gaps between the grain splitting shovels.

[0039] Furthermore, the inner bottom wall of the cutting platform 2 is rotatably connected to two first pulleys 5, the number of eccentric wheels 305 is two, the bottoms of the two eccentric wheels 305 are coaxially fixed with the tops of the two first pulleys 5 respectively, and a stepper motor 6 is fixedly installed on the bottom of the cutting platform 2, and the output end of the stepper motor 6 is fixedly connected to the bottom of one of the eccentric wheels 305.

[0040] Specifically, by controlling the frequency of the pulse signal input to the stepper motor 6, the output speed of the stepper motor 6 can be controlled, thereby controlling the left and right shaking frequency of the cutter frame rod 302;

[0041] One of the first pulleys 5 is driven by the stepping motor 6, and the two first pulleys 5 are synchronously driven by belts, thereby driving the two eccentric wheels 305 to rotate synchronously, and then the two eccentric wheels 305 respectively drive the two connecting rods 306 to perform eccentric motion.

[0042] Furthermore, there are two connecting rods 306, and the two connecting rods 306 each include a first connecting rod 3061 rotatably connected to the top of the eccentric wheel 305, and the two first connecting rods 3061 are rotatably connected to the second connecting rod 3062 at the end facing away from the eccentric wheel 305. There are two slides 304, and the front sides of the two slides 304 are respectively fixedly connected to the rear ends of the two positioning plates 4, and the two second connecting rods 3062 are respectively rotatably connected to the rear sides of the two slides 304 at the end facing away from the first connecting rod 3061.

[0043] Specifically, the first connecting rod 3061 drives the second connecting rod 3062 to swing, and then the second connecting rod 3062 pushes the slide 304 to move left and right on the guide screw 303, and the slide 304 drives the positioning plate 4 to control the cutter holder rod 302 to swing back and forth.

[0044] Furthermore, a hydraulic cylinder 7 is fixedly installed on the inner side of the mounting door frame 1, and a hydraulic push rod is movably connected to the top of the hydraulic cylinder 7. The top of the hydraulic push rod is fixedly connected to the bottom of the cutting table 2, and a straw delivery assembly 8 is provided on the inner side of the cutting table 2. The straw delivery assembly 8 includes a straw axis frame 801 and a conveying auger 802 which are respectively rotatably connected to the inner side of the cutting table 2, and the outside of the straw axis frame 801 is fixedly connected to rake tooth rods 803 distributed in a ring array.

[0045] Specifically, the hydraulic cylinder 7 is controlled and the hydraulic push rod is used to push the cutting platform 2 to rise and fall along the inner side of the mounting mast 1, so as to adjust the cutting height of the cutting platform 2.

[0046] Furthermore, the outside of the conveying auger 802 is provided with two spiral layers 804, and the two spiral layers 804 are symmetrical structures. The left side of the cutting table 2 is rotatably connected to two second pulleys 10, and the right ends of the two second pulleys 10 are coaxially fixed to the reed shaft frame 801 and the left end of the conveying auger 802 respectively. The left side of the cutting table 2 is fixedly installed with a first reduction motor 11, and the output end of the first reduction motor 11 is fixedly connected to the left end of one of the second pulleys 10.

[0047] Specifically, one of the second pulleys 10 is driven by the first reduction motor 11, and the two second pulleys 10 are synchronously driven by belts, and then respectively drive the reed shaft frame 801 and the conveying auger 802 to rotate synchronously, and the grabbing rake tooth rod 803 of the reed shaft frame 801 drives the harvested stems and fruits to move to the conveying auger 802;

[0048] The stems accumulated on both sides of the cutting table 2 are transported to the feeding track 901 in opposite directions through the spiral layer 804 symmetrically arranged on the outer side of the conveying auger 802, and the stems are transported through the conveyor belt 902.

[0049] Furthermore, one side of the conveyor belt 902 is close to the bottom of the conveying auger 802, a hopper 12 is fixedly installed on the left side of the top of the threshing cylinder 903, the top of the hopper 12 is connected to the feeding track 901, and the other side of the conveyor belt 902 is close to the top of the hopper 12. A second reduction motor 13 is fixedly installed on the front side of the threshing cylinder 903, and the beating member 904 includes an auger shaft 9041 fixedly connected to the output end of the second reduction motor 13, and a grinding roller group 9042 is movably installed outside the auger shaft 9041.

[0050] Specifically, the harvested stems fall into the threshing drum 903 through the hopper 12, and the auger shaft 9041 is driven by the second reduction motor 13. The front and rear ends of the auger shaft 9041 are both auger structures, and then the grinding roller group 9042 fits the stems to the inner wall of the screen drum 905 for grinding and extrusion.

[0051] Furthermore, a mounting frame 9043 is fixedly installed on the outside of the auger shaft 9041, and a beater rod 9044 is rotatably connected to the outside of the mounting frame 9043. A slag discharge bin 14 is fixedly connected to the rear side of the threshing drum 903 and one side close to the rear end of the auger shaft 9041, and a collecting box 15 is fixedly connected to the bottom of the threshing drum 903.

[0052] Specifically, while the grinding roller group 9042 grinds and squeezes the stem, the mounting frame 9043 is used to drive the beating rod 9044 to accelerate the efficiency of grain shedding, and then the stem residues are sent to the slag discharge bin 14 through the auger shaft 9041 for discharge, and the fruit grains are sent to the collection box 15 for collection.

[0053] In summary, the millet harvester is installed by installing the door frame 1 and the header 2 on the front side of the harvesting machine, and the millet stalks are classified and bundled by using the grass-dividing shovel structure of the beam splitting frame 301. When the stalks enter the area of ​​the cutting knife frame rod 302, the first pulley 5 is driven by the stepper motor 6, and the two eccentric wheels 305 are driven by the first pulley 5. The eccentric wheel 305 drives the connecting rod 306 to make an eccentric movement, and the cutting knife frame rod 302 is controlled to quickly reciprocate left and right inside the beam splitting frame 301, so as to quickly cut the millet stalks. Cutting, by designing the hydraulic cylinder 7 to control the overall lifting of the harvesting platform 2, the cutting height can be adjusted to reduce the situation of missed cutting, thereby reducing the problem of large-scale grain shedding and loss during harvesting. The harvested stalks are sent to the conveying auger 802 through the grabbing rake tooth rod 803 of the straw shaft frame 801, and the stalks and fruits on both sides are sent to the feeding track 901 by the symmetrically arranged spiral layers 804. They are ground and beaten by the grinding roller group 9042 and the beating rod 9044 in the threshing drum 903 to speed up the efficiency of grain shedding.

[0054] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A millet harvester, comprising a mounting gantry (1), characterized in that: A cutting platform (2) is fixedly mounted on the inner side of the mounting mast (1), a reciprocating cutting structure (3) is arranged on the inner side of the cutting platform (2), and a threshing assembly (9) is arranged on the rear side of the mounting mast (1); The reciprocating cutting structure (3) comprises a beam splitter frame (301) fixed on the inner side of the cutting table (2), a cutting knife frame rod (302) is arranged on the inner side of the beam splitter frame (301), a guide screw (303) is fixedly connected to the inside of the cutting table (2), a slide table (304) is slidably connected to the outside of the guide screw (303), an eccentric wheel (305) is rotatably connected to the inner bottom wall of the cutting table (2), and a linkage rod (306) is rotatably connected to the top of the eccentric wheel (305); The threshing assembly (9) comprises a feeding track (901) fixedly connected to the rear side of the mounting door frame (1); a conveyor belt (902) is connected to the inner side of the feeding track (901); a threshing drum (903) is fixedly connected to the rear side of the feeding track (901); a beating member (904) is movably installed inside the threshing drum (903); and a screen drum (905) is fixedly connected to the inside of the threshing drum (903).

2. A millet harvester according to claim 1, characterized in that: The beam splitting frame (301) comprises a plurality of mutually connected straw splitting shovel structures, each of which has a through groove on its inner side, and the distance between each two adjacent straw splitting shovels is 2 cm. A plurality of harvesting blades are welded to the outside of the cutter frame rod (302), and the distance between each two adjacent harvesting blades is 2 cm. Positioning plates (4) are fixedly connected to the left and right ends of the cutter frame rod (302).

3. A millet harvester according to claim 1, characterized in that: The inner bottom wall of the cutting platform (2) is rotatably connected to two first pulleys (5), the number of the eccentric wheels (305) is two, the bottoms of the two eccentric wheels (305) are coaxially fixed to the tops of the two first pulleys (5), and a stepper motor (6) is fixedly installed at the bottom of the cutting platform (2), and the output end of the stepper motor (6) is fixedly connected to the bottom of one of the eccentric wheels (305).

4. A millet harvester according to claim 2, characterized in that: There are two connecting rods (306), and the two connecting rods (306) each include a first connecting rod (3061) rotatably connected to the top of the eccentric wheel (305), and the two first connecting rods (3061) are rotatably connected to a second connecting rod (3062) at one end facing away from the eccentric wheel (305). There are two slides (304), and the front sides of the two slides (304) are respectively fixedly connected to the rear ends of the two positioning plates (4), and the two second connecting rods (3062) are respectively rotatably connected to the rear sides of the two slides (304) at one end facing away from the first connecting rod (3061).

5. The millet harvester according to claim 1, characterized in that: A hydraulic cylinder (7) is fixedly mounted on the inner side of the mounting door frame (1); a hydraulic push rod is movably connected to the top of the hydraulic cylinder (7); the top of the hydraulic push rod is fixedly connected to the bottom of the cutting table (2); a straw conveying assembly (8) is arranged on the inner side of the cutting table (2); the straw conveying assembly (8) comprises a straw-pulling shaft frame (801) and a conveying auger (802) which are respectively rotatably connected to the inner side of the cutting table (2); and a rake tooth rod (803) distributed in a ring array is fixedly connected to the outside of the straw-pulling shaft frame (801).

6. A millet harvester according to claim 5, characterized in that: The outside of the conveying auger (802) is provided with two spiral layers (804), and the two spiral layers (804) are symmetrical structures. The left side of the cutting table (2) is rotatably connected to two second pulleys (10), and the right ends of the two second pulleys (10) are coaxially fixed to the reed shaft frame (801) and the left end of the conveying auger (802), respectively. The left side of the cutting table (2) is fixedly installed with a first reduction motor (11), and the output end of the first reduction motor (11) is fixedly connected to the left end of one of the second pulleys (10).

7. A millet harvester according to claim 1, characterized in that: One side of the conveyor belt (902) is close to the bottom of the conveying auger (802), a hopper (12) is fixedly installed on the left side of the top of the threshing drum (903), the top of the hopper (12) is connected to the feeding track (901), the other side of the conveyor belt (902) is close to the top of the hopper (12), a second reduction motor (13) is fixedly installed on the front side of the threshing drum (903), the beating member (904) includes an auger shaft (9041) fixedly connected to the output end of the second reduction motor (13), and a grinding roller group (9042) is movably installed outside the auger shaft (9041).

8. A millet harvester according to claim 7, characterized in that: A mounting frame (9043) is fixedly mounted on the outside of the auger shaft (9041), and a slamming rod (9044) is rotatably connected to the outside of the mounting frame (9043). A slag discharge bin (14) is fixedly connected to the rear side of the threshing drum (903) and one side close to the rear end of the auger shaft (9041), and a collecting box (15) is fixedly connected to the bottom of the threshing drum (903).

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