Secondary seed and leaf collecting device based on alfalfa seed harvester

Abstract

The utility model relates to the technical field of forage grass seed harvesting equipment, in particular to a secondary seed and leaf collecting device based on an alfalfa seed harvester, which comprises a harvester, support components are arranged on the left side and the right side of the rear part of the harvester, and a secondary sorting mechanism is mounted below a discharge hole in the rear part of the harvester; the secondary sorting mechanism comprises a feeding chamber fixedly installed on the lower side of a discharging port in the rear portion of the harvester, a stripping roller is rotationally connected into the feeding chamber, a winnowing chamber is connected to one side of the feeding chamber, the feeding chamber is communicated with the winnowing chamber, and one end of the stripping roller penetrates through the side wall of the feeding chamber and is fixedly connected with a driven belt wheel. The other end of the stripping roller is fixedly connected with one end of an extension shaft, the extension shaft extends into the winnowing chamber and is fixedly connected with a winnowing fan, and the upper end of the winnowing chamber is communicated with the collecting hopper through a fixedly-installed conveying pipe. According to the utility model, the secondary sorting mechanism is arranged, so that the purpose of obtaining residual seeds of alfalfa stalks discharged from the discharge port after being harvested by the harvester again is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of forage grass seed harvesting equipment, and concretely is seed, leaf secondary collection device based on alfalfa seed harvester. BACKGROUND

[0002] Alfalfa is a perennial forage grass of the genus Medicago in the family Fabaceae, widely distributed in Northeast China and North China, and is a kind of excellent forage resource. At present, alfalfa seeds are generally harvested by using combine harvesters or mowers in China, but the common problem of mechanical harvesting of alfalfa seeds is that there is a large amount of seed loss during the harvesting process.

[0003] Through retrieval, a kind of automatic harvesting processing device for alfalfa seed provided with publication number CN216314044U, the utility model relates to the technical field of alfalfa, including box, the box bottom wall is provided with movement mechanism, the box bottom wall is provided with harvesting mechanism, the box end wall is provided with absorption mechanism, can realize through the movement of the mechanism, to realize the separation of alfalfa seed, can realize through winnowing the first separation of alfalfa seed, remove one step impurity, can realize through water selection method the final separation of alfalfa seed, the efficiency of separation is relatively high;Can realize through the movement of the mechanism, to drive the movement of the whole device, it is convenient to harvest;Can realize through the movement of the mechanism, to realize the harvesting of alfalfa seed, without a large number of manpower;Can realize through the movement of the mechanism, to realize the absorption of the harvested alfalfa seed, it is convenient to separate alfalfa seed.

[0004] But this kind of automatic harvesting processing device for alfalfa seed has the following problems: the absorption mechanism of the automatic harvesting processing device adopts mechanical scattering separation mode, only once harvesting of alfalfa seed is carried out, alfalfa seed cannot be collected twice, and part of alfalfa seed will be left in stems and leaves. UTILITY MODEL CONTENTS

[0005] The utility model provides seed, leaf secondary collection device based on alfalfa seed harvester, to solve the problem that only once harvesting of alfalfa seed is carried out in the automatic harvesting processing device for alfalfa seed mentioned in background art, alfalfa seed cannot be collected twice, and part of alfalfa seed will be left in stems and leaves.

[0006] To solve the above problems, the utility model provides seed, leaf secondary collection device based on alfalfa seed harvester, including harvester, the left and right sides of the rear part of the harvester are provided with support assembly, the secondary sorting mechanism is installed below the discharge port of the rear part of the harvester;

[0007] The support assembly comprises a first vertical frame and a second vertical frame fixedly connected to the left and right sides of the rear part of the harvester, the upper ends of the first vertical frame and the second vertical frame located at the same side are fixedly connected through a cross beam, one end of the cross beam close to the first vertical frame is hingedly connected to the bottom end of the collecting hopper, the side surface of the first vertical frame is provided with an oil cylinder, the upper end of the oil cylinder is hingedly connected to the bottom end of the collecting hopper, and the lower end of the oil cylinder is hingedly connected to the side surface of the first vertical frame;

[0008] The secondary sorting mechanism comprises a feeding chamber fixedly installed on the lower side of the discharge port of the rear part of the harvester, a combing roller is rotationally connected in the feeding chamber, one side of the feeding chamber is connected with an air separation chamber, the feeding chamber and the air separation chamber are communicated, one end of the combing roller penetrates through the side wall of the feeding chamber and is fixedly connected with a driven belt pulley, the other end of the combing roller is fixedly connected with one end of an extension shaft, the extension shaft extends into the air separation chamber and is fixedly connected with an air separation fan, the upper end of the air separation chamber is communicated with the collecting hopper through a fixedly installed material conveying pipe, and the driven belt pulley is in transmission connection with the power output wheel of the harvester through a belt.

[0009] Further, the second vertical frame is fixedly installed with a tensioning wheel, and the upper side of the tensioning wheel is in extrusion contact with the belt.

[0010] Further, the first vertical frame is connected with a reinforcing rod between the upper end close to the first vertical frame and the cross beam.

[0011] Further, the side surface of the first vertical frame is provided with a connecting piece, one end of a hanging chain is fixedly connected to the connecting piece, the other end of the hanging chain is fixedly connected with a self-locking piece arranged at the lower end of the rear part of the collecting hopper, the self-locking piece is hingedly connected to the lower end of the rear part of the collecting hopper, and the self-locking piece can lock the lower end of the hinged baffle on the rear side of the collecting hopper.

[0012] Further, the side surface of the air separation chamber is provided with an air inlet, and the front side wall of the sorting chamber is provided with an openable inspection opening.

[0013] Further, the side surface of the feeding chamber close to the front part of the harvester is provided with an openable and closable discharging plate.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1、the utility model discloses a support assembly and secondary sorting mechanism are set up, after the harvester is harvested to alfalfa seed, the secondary sorting mechanism can again scatter and thresh the stem and leaf of the discharge port under the rear part of the harvester in the feeding chamber, the air separation fan that rotates in the air separation chamber sucks the light leaf and seed and sends to the collecting hopper through the material conveying pipe, and the alfalfa stem and leaf after secondary threshing will fall and accumulate in the farmland after the discharging plate of the feeding chamber is opened. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1The whole structure schematic view of the utility model is shown in the figure.

[0017] Figure 2 The structure schematic view of the collecting hopper, the supporting assembly and the secondary sorting mechanism of the utility model is shown in the figure.

[0018] Figure 3 The structure schematic view of the supporting assembly and the collecting hopper bottom connection state of the utility model is shown in the figure.

[0019] Figure 4 The structure schematic view of the secondary sorting mechanism of the utility model is shown in the figure.

[0020] Figure 5 The partial structure schematic view of the secondary sorting mechanism of the utility model is shown in the figure.

[0021] Figure 6 The A place enlarged structure schematic view of the utility model is shown in the figure. Figure 3

[0022] Figure 7 The B place enlarged structure schematic view of the utility model is shown in the figure. Figure 3

[0023] Figure 8 The C place enlarged structure schematic view of the utility model is shown in the figure. Figure 1

[0024] Mark explanation in the figure: 1, harvester;101, power output wheel;2, supporting assembly;201, first vertical frame;202, second vertical frame;203, crossbeam;204, collecting hopper;3, secondary sorting mechanism;301, feed chamber;3011, discharge plate;302, combing roller;303, winnowing chamber;3031, air inlet;3032, access hole;304, driven pulley;305, extension shaft;306, winnowing fan;307, material conveying pipe;308, tension pulley;309, belt;401, material receiving bin;403, breathable top cover;402, material receiving hopper bin door;4, reinforcing rod;5, connecting piece;6, hanging chain;7, self-locking piece;8, baffle. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] Reference Figures 1-8 ​​​The utility model relates to a kind of secondary collection devices of seed and leaf based on alfalfa seed harvester, including harvester 1, support assembly 2 is arranged in the rear left and right sides of harvester 1, secondary sorting mechanism 3 is installed below the discharge port of the rear of harvester 1;

[0027] Support assembly 2 includes first vertical frame 201 and second vertical frame 202 fixedly connected to the left and right sides of the rear of harvester 1, the upper end of first vertical frame 201 and second vertical frame 202 located on the same side is fixedly connected by crossbeam 203, one end of crossbeam 203 close to first vertical frame 201 is hinged with the bottom end of collection hopper 204, the side surface of first vertical frame 201 is provided with oil cylinder 205, the upper end of oil cylinder 205 is hinged with the bottom end of collection hopper 204, and the lower end of oil cylinder 205 is hinged with the side surface of first vertical frame 201;

[0028] Secondary sorting mechanism 3 includes feed chamber 301 fixedly installed below the discharge port of the rear of harvester 1, combing roller 302 is rotatably connected in feed chamber 301, air separation chamber 303 is connected on one side of feed chamber 301, feed chamber 301 is communicated with air separation chamber 303, one end of combing roller 302 penetrates through the side wall of feed chamber 301 and is fixedly connected with driven pulley 304, the other end of combing roller 302 is fixedly connected with one end of extension shaft 305, extension shaft 305 extends into air separation chamber 303 and is fixedly connected with air separation fan 306, the upper end of air separation chamber 303 is communicated with collection hopper 204 through fixedly installed material conveying pipe 307, and driven pulley 304 is drivingly connected with power output wheel 101 of harvester 1 through belt 308.

[0029] Among them, second vertical frame 202 is fixedly installed with tension pulley 309, and the upper side of tension pulley 309 is in extrusion contact with belt 308.

[0030] First vertical frame 201 is connected with reinforcing rod 4 between close to upper end and crossbeam 203.

[0031] Among them, the side surface of first vertical frame 201 is provided with connecting piece 5, one end of hanging chain 6 is fixedly connected with connecting piece 5, the other end of hanging chain 6 is fixedly connected with self-locking piece 7 arranged at the lower end of the rear of collection hopper 204, self-locking piece 7 is hinged with the rear lower end of collection hopper 204, and self-locking piece 7 can lock the lower end of baffle 8 hinged with the rear side of collection hopper 204.

[0032] Among them, air separation chamber 303 is provided with air inlet 3031 on the side surface, and the front side wall of air separation chamber 303 is provided with openable inspection hole 3032.

[0033] Among them, the side surface of feed chamber 301 close to the front of harvester 1 is provided with openable discharge plate 3011.

[0034] It should be noted that the specific model of the harvester 1 is Changfa Lian CF504A, and the initial harvesting operation of the harvester 1 part belongs to the prior art, which will not be repeated here.

[0035] When starting the operation, first, the harvester 1 performs the initial harvesting and threshing of the alfalfa in the field to obtain the seeds. The stems and leaves after the initial threshing in the process of harvesting alfalfa are discharged from the discharge port below the rear of the harvester 1, and then the discharged stems and leaves enter the secondary sorting mechanism 3. The specific process is as follows: the stems and leaves first enter the feeding chamber 301, and are scattered and threshed by the combing roller 302. The light leaves and seeds in the scattered stems and leaves are sucked into the winnowing chamber 303 by the rotating winnowing fan 306, and then are blown to the collection hopper 204 through the feeding pipe 307. After the feeding chamber 301 is filled with the stems and leaves after the secondary scattering and threshing, the discharge plate 3011 is opened, and the stems and leaves fall and accumulate on the field. After subsequent drying, they can be baled.

[0036] After completing the harvesting operation, the harvester 1 drives out of the field, the driver controls the extension of the telescopic rod of the oil cylinder 205, the telescopic rod of the oil cylinder 205 pushes the hinge joint at the bottom end of the collection hopper 204, so that the collection hopper 204 rotates upward along the hinge joint with the cross beam 203. At this time, the chain 6 is in a relaxed state, the self-locking piece 7 automatically falls due to gravity, and the restriction on the lower end of the baffle 8 hinged behind the collection hopper 204 is released. The baffle 8 rotates along the hinge joint at the upper end of the collection hopper 204, so that the seeds and leaves in the collection hopper 204 fall from the position where the lower end of the baffle 8 behind the collection hopper 204 is opened. After the seeds and leaves in the collection hopper 204 are completely poured, the contraction rod of the oil cylinder 205 is controlled to contract, thereby pulling the collection hopper 204 to rotate downward along the hinge joint with the cross beam 203 until the lower end of the collection hopper 204 contacts the upper surface of the cross beam 203. In this process, the chain 6 is gradually tightened, thereby pulling the self-locking piece 7 to rotate upward to lock the lower end of the baffle 8.

[0037] The above is only a preferred specific embodiment of the present application; however, the protection scope of the present application is not limited thereto. Any skilled person in the art can make equivalent substitutions or changes within the technical range disclosed by the present application according to the technical scheme and improvement concept of the present application, which should be covered within the protection scope of the present application.

Claims

1. A device for secondary collection of seeds and leaves based on an alfalfa seed harvester, comprising a harvester (1), characterized in that: The support assembly (2) is arranged on the left and right sides of the rear part of the harvester (1), and a secondary sorting mechanism (3) is arranged below the discharge port of the rear part of the harvester (1); The support assembly (2) comprises first vertical frames (201) and second vertical frames (202) fixedly connected to the left and right sides of the rear part of the harvester (1), the upper ends of the first vertical frame (201) and the second vertical frame (202) on the same side are fixedly connected through a cross beam (203), one end of the cross beam (203) close to the first vertical frame (201) is hingedly connected to the bottom end of a collecting hopper (204), an oil cylinder (205) is arranged on the side of the first vertical frame (201), the upper end of the oil cylinder (205) is hingedly connected to the bottom end of the collecting hopper (204), and the lower end of the oil cylinder (205) is hingedly connected to the side of the first vertical frame (201); The secondary sorting mechanism (3) comprises a feeding chamber (301) fixedly arranged below the discharge port of the rear part of the harvester (1), a combing roller (302) rotatably arranged in the feeding chamber (301), a winnowing chamber (303) connected to one side of the feeding chamber (301), a communication passage between the feeding chamber (301) and the winnowing chamber (303), one end of the combing roller (302) penetrating through the side wall of the feeding chamber (301) and fixedly connected to a driven belt pulley (304), the other end of the combing roller (302) fixedly connected to one end of an extension shaft (305), the extension shaft (305) extending into the winnowing chamber (303) and fixedly connected to a winnowing fan (306), the upper end of the winnowing chamber (303) in communication with the collecting hopper (204) through a fixedly arranged material conveying pipe (307), and the driven belt pulley (304) in transmission connection with a power output wheel (101) of the harvester (1) through a belt (308).

2. The alfalfa seed harvester based seed and leaf secondary collection device of claim 1, wherein: A tensioning wheel (309) is fixedly arranged on the second vertical frame (202), and the upper side of the tensioning wheel (309) is in extrusion contact with the belt (308).

3. The alfalfa seed harvester based seed and leaf secondary collection device of claim 1, wherein: A reinforcing rod (4) is connected between the first vertical frame (201) close to the upper end and the cross beam (203).

4. The alfalfa seed harvester based seed and leaf secondary collection device of claim 1, wherein: A connecting piece (5) is arranged on the side of the first vertical frame (201), one end of a hanging chain (6) is fixedly connected to the connecting piece (5), the other end of the hanging chain (6) is fixedly connected to a self-locking piece (7) arranged at the lower end of the rear part of the collecting hopper (204), the self-locking piece (7) is hingedly arranged at the lower end of the rear part of the collecting hopper (204), and the self-locking piece (7) can lock the lower end of a baffle (8) hingedly arranged on the rear side of the collecting hopper (204).

5. The alfalfa seed harvester based seed and leaf secondary collection device of claim 1, wherein: An air inlet (3031) is arranged on the side of the winnowing chamber (303), and an openable inspection opening (3032) is arranged on the front side wall of the winnowing chamber (303).

6. The alfalfa seed harvester based seed and leaf secondary collection device of claim 1, wherein: A closable unloading plate (3011) is arranged on the side of the feeding chamber (301) close to the front part of the harvester (1).

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