Picking harvester and anti-blocking method thereof

Abstract

The invention discloses a picking harvester, which comprises a picking frame; a harvesting assembly, wherein the harvesting assembly comprises a connecting bracket connected to the front of the picking frame and capable of swinging up and down, wherein a plurality of shovel blades are arranged at the lower end of the connecting bracket; a feeding conveying assembly, wherein the feeding conveying assembly comprises a feeding conveying belt arranged at the rear end of the shovel blade and connected to the picking frame, wherein the rear part of the shovel blade can dock with the front end of the feeding conveying belt when swinging downward, and an end of the feeding conveying belt away from the shovel blade is inclined upward and extends backward; a splitting assembly, wherein the splitting assembly comprises a plurality of splitting transmission shafts rotatably connected to the picking frame and spaced in the front-rear direction, wherein a plurality of rotating conveying members for conveying garlic heads backward are arranged on the splitting transmission shaft, and a plurality of cutting blades are connected to the splitting transmission shaft between two adjacent rotating conveying members, and the distance between the two adjacent rotating conveying members is less than the minimum outer diameter of the smallest garlic head; the invention can realize both the harvesting of garlic and the splitting of garlic leaves and garlic heads.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, in particular to a picking harvester. Background Art

[0002] In traditional technology, the harvesting of root crops is mainly done by manual use of agricultural machinery. For crops planted on a large scale, the harvesting is difficult and inefficient, making it difficult to industrialize. In order to solve the problem of high labor intensity and low efficiency in harvesting root crops in traditional technology, an invention patent named "self-propelled multi-purpose harvester" with publication number CN 106358566 A and publication date 2017.02.01 is disclosed in the prior art. It includes a front cutter, a conveyor belt and a silo. The front cutter is installed at the front end of the chassis, the silo is fixed at the rear of the chassis, and an inclined conveyor belt is arranged between the front cutter and the silo. It replaces manual labor and improves work efficiency, but it can only directly harvest crops such as garlic, and it cannot separate garlic leaves, roots, soil, etc. from garlic heads. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the above and / or existing problems in the existing garlic picking and harvesting process, the present invention is proposed.

[0005] Therefore, the object of the present invention is to provide a picking harvester, which can separate garlic leaves and garlic heads and can screen and grade garlic heads of different sizes.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a picking harvester, comprising:

[0007] Pick up rack;

[0008] A harvesting assembly, the harvesting assembly comprising a connecting bracket connected to the front of the picking frame and capable of swinging up and down, a plurality of shovel blades being arranged at the lower end of the connecting bracket;

[0009] A feed conveyor assembly, the feed conveyor assembly comprising a feed conveyor belt arranged at the rear end of the shovel blade and connected to the pickup frame, the rear part of the shovel blade can dock with the front end of the feed conveyor belt when swinging downward, and the end of the feed conveyor belt away from the shovel blade is inclined upward and extends backward;

[0010] A segmentation assembly, the segmentation assembly comprising a plurality of segmentation transmission shafts rotatably connected to a picking frame and spaced apart in a front-to-rear direction, a plurality of rotating conveying members arranged on the segmentation transmission shaft for conveying the garlic backwards, a plurality of cutting blades connected to the segmentation transmission shaft between two adjacent rotating conveying members, and a distance between two adjacent rotating conveying members being less than a minimum outer diameter of a smallest garlic;

[0011] A plurality of rotatable depth limiting wheels are arranged on the periphery of the picking frame, and the lowest position of the rotation circle of the depth limiting wheels is lower than the lowest position of the picking frame.

[0012] In order to further facilitate the unloading after picking is completed, the rear part of the picking frame is connected to a first recovery component corresponding to the cutting component, and the recovery component includes a first transmission wheel and a second transmission wheel rotatably connected to the left and right ends of the picking frame, and the first transmission wheel is connected to the second transmission wheel via a recovery conveyor belt.

[0013] As a preferred solution of the picking harvester of the present invention, wherein: at least one conveying transmission box is fixedly connected to the picking frame, and the output end of the conveying transmission box is connected to the first transmission wheel.

[0014] In order to achieve the screening of crops of different sizes, a conveying component for continuing to transport materials backward is connected to the picking frame behind the dividing component, a second recovery component is connected to the picking frame below the conveying component, and a screening component for screening large and small materials is connected to the picking frame between the conveying component and the first recovery component. The materials transported by the conveying component fall onto the recovery conveyor belt in the second recovery component.

[0015] In order to further realize the screening of garlics of different sizes, the screening component includes a screening box connected to the inner side of the picking frame, a plurality of connecting ports are arranged on the screening box, a plurality of connecting rods corresponding to the connecting ports and capable of swinging up and down are connected to the screening box, one end of the connecting rod passing through the corresponding connecting port is hingedly connected with a screening plate, a plurality of screening drop holes are arranged on the screening plate, a baffle plate is fixedly connected in the picking frame close to the end of the front group of segmentation components, the crops segmented by the front group of segmentation components pass over the baffle plate and fall onto the screening plate, the screening drop holes are arranged close to one end of the baffle plate opposite to the screening box, and the materials falling from the screening drop holes fall onto the recovery conveyor belt in the front.

[0016] In order to further realize the screening and backward throwing of materials on the screening plate, a screening motor is fixedly connected to the lower side of the screening box, and a vertically arranged screening transmission screw is rotatably connected in the screening box. The screening transmission screw is threadedly connected to a screening transmission block slidably connected to both sides of the screening box, and the connecting rod is hinged on the side of the screening transmission block facing the connecting port.

[0017] As a preferred solution of the picking harvester of the present invention, the upper edge of the screening box has an inclined portion, and the inclined portion is inclined downward toward the direction of the rear dividing assembly.

[0018] As a preferred embodiment of the picking harvester of the present invention, when the screening plate swings upward, the material that has not been screened and has fallen from the material drop holes is thrown out by the screening plate and falls onto the conveying assembly behind.

[0019] In order to further realize the up and down swinging of the shovel blade, a front transmission box is fixedly connected to the upper part of the front end of the picking frame, and the left and right ends of the front transmission box are connected to output shafts rotatably connected to the picking frame, and a swing plate is connected to the output shaft, and the end of the swing plate extending forward is hinged to the upper part of the connecting bracket.

[0020] In order to further facilitate the connection between the present invention and the front walking device, a suspension bracket is connected to the connecting bracket, support shafts are respectively fixed at both ends of the suspension bracket, and both sides of the connecting bracket are rotatably connected to the support shafts.

[0021] Compared with the prior art, the invention has the following technical effects: the garlic root is scooped up by a plurality of shovel blades, and then the garlic, root-soil complex and the like on the shovel blades are caused to enter the feeding and conveying component under the swinging action of the shovel blades, the feeding and conveying component is continuously operated, the broken soil is shaken off, and the root-soil complex is conveyed backward to the segmentation component, the cutting blade cuts the garlic leaves, roots, soil and the like into pieces and drops them on the ground, the garlic heads are conveyed backward through a plurality of rotating conveying members in the segmentation component, the segmented garlic heads fall onto the screening plate, the small garlic heads that fall onto the screening plate fall onto the recovery component below through the screening drop holes, the screening plate is regularly and rapidly swung upward, and at the same time the feeding conveyor belt is decelerated, the screening plate is swung to a set angle, the screening plate is quickly returned to its position, the large garlic heads are thrown backward to the cutting component at the rear, the conveying component conveys the large garlic heads thrown out by the screening plate backward to the recovery conveyor belt of the second recovery component, and the screening of garlic heads of different sizes, the separation of garlic leaves, roots, soil and the like from the garlic heads, and the recovery of the garlic heads are realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0023] Figure 1 It is the front view of the present invention.

[0024] Figure 2 The three-dimensional structure of the present invention Figure 1 .

[0025] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0026] Figure 4 The three-dimensional structure of the present invention Figure 2 .

[0027] Figure 5 for Figure 4 A partial enlarged view of point B in the middle.

[0028] Figure 6 The three-dimensional structure of the present invention Figure 3 .

[0029] Figure 7 for Figure 6 A partial enlarged view of point C in the middle.

[0030] Figure 8 for Figure 6 A partial enlarged view of point D in the middle.

[0031] Fig. 9 for Figure 6 A partial enlarged view of point E in the middle.

[0032] Fig.10 It is a side view of the present invention.

[0033] Fig.11 for Fig.10 The view from FF in the middle.

[0034] Fig.12 for Fig.11 A partial enlarged view of point G in the middle.

[0035] Fig.13 It is a top view of the present invention.

[0036] Fig.14 for Fig.13 View from point HH in the figure.

[0037] Fig.15 for Fig.14 A partial enlarged view of point I in the middle.

[0038] Fig.16 for Fig.13 The view from point JJ ​​in the middle.

[0039] Fig.17 for Fig.16 A partial enlarged view of point K in the middle.

[0040] In the figure, 100 picking frame, 200 harvesting component, 201 shovel blade, 202 connecting bracket, 203 supporting shaft, 204 swing plate, 205 front transmission box, 206 output shaft, 300 hanging bracket, 400 depth limiting wheel, 500 driving component, 501 driving motor, 502 first driving shaft, 503 second driving shaft, 504 right transmission belt, 505 fourth rotating wheel, 506 third rotating wheel, 507 first transmission belt, 508 second right rotating wheel, 509 first right rotating wheel, 510 first transmission belt, 511 second rotating wheel, 512 fifth rotating wheel, 513 third transmission belt, 514 sixth rotating wheel, 515 second transmission belt, 516 first left rotating wheel, 517 second left rotating wheel, 600 splitting component, 601 cutting blade, 602 cutting transmission shaft, 603 rotating conveying member, 603a friction tooth, 604 limiting shaft, 604a limiting disk, 605 limit rod, 606 connecting shaft, 607 transmission gear, 700 second recovery component, 800 first recovery component, 801 support seat, 802 recovery conveyor belt, 803 conveyor rod, 804 conveyor transmission box, 805 first rotating shaft, 806 first transmission wheel, 900 feed conveyor component, 901 feed conveyor belt, 902 feed rod, 903 first conveyor rotating wheel, 904 second conveyor rotating shaft, 905 second conveyor Rotating wheel, 906 first conveying shaft, 1000 conveying assembly, 1001 rotating conveying member, 1002 conveying shaft, 2000 screening assembly, 2001 screening box, 2002 screening plate, 2003 baffle plate, 2004 connecting rod, 2005 guide rod, 2006 screening transmission block, 2006a connecting ear, 2007 screening motor, 2008 screening transmission screw, a connecting hole, b screening drop hole, c connecting port. DETAILED DESCRIPTION

[0041] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0042] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0043] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0044] Example 1

[0045] Reference Figure 1 to Figure 3 and Figure 6 to Figure 9 , which is the first embodiment of the present invention, provides a picking harvester with a compact and ingenious structure. It can harvest root crops such as garlic, split garlic leaves and garlic heads, and recycle garlic heads with high operating efficiency.

[0046] A picking harvester comprises a picking frame 100, a harvesting assembly 200 for scooping up garlic is connected to the picking frame 100, a feeding conveying assembly 900 for conveying garlic backwards is connected to the picking frame 100 at the rear end of the harvesting assembly 200, a splitting assembly 600 for cutting garlic leaves and conveying the split garlic backwards is connected to the picking frame 100 at the rear end of the feeding conveying assembly 900, a conveying assembly 1000 for conveying the garlic backwards is connected to the picking frame 100 behind the splitting assembly 600, a recycling assembly for finally recycling and outputting the garlic is connected to the picking frame 100 below the conveying assembly 1000; a plurality of rotatable depth limiting wheels 400 are arranged on the periphery of the picking frame 100, and the lowest position of the rotating circumference of the depth limiting wheels 400 is lower than the lowest position of the picking frame 100.

[0047] Specifically, the harvesting component 200 includes a connecting bracket 202 which is connected to the front of the picking frame 100 and can swing up and down. A plurality of shovel blades 201 are arranged at the lower end of the connecting bracket 202. The end of the shovel blade 201 extending forward is inclined downward. A front transmission box 205 is fixedly connected to the upper part of the front end of the picking frame 100. The left and right ends of the front transmission box 205 are both connected to an output shaft 206 rotatably connected to the picking frame 100. A swing plate 204 is connected to the output shaft 206. The end of the swing plate 204 extending forward is hinged to the upper part of the connecting bracket 202. A hanging bracket 300 is connected to the connecting bracket 202. Support shafts 203 are respectively fixed to the two ends of the hanging bracket 300. Both sides of the connecting bracket 202 are rotatably connected to the support shaft 203.

[0048] Specifically, the feed conveying assembly 900 includes a feed conveyor belt 901 arranged at the rear end of the shovel blade 201 and connected to the picking frame 100. When the rear part of the shovel blade 201 swings downward, it can dock with the front end of the feed conveyor belt 901. The end of the feed conveyor belt 901 away from the shovel blade 201 is tilted upward and extends backward.

[0049] During implementation, the present invention is connected to the front traveling device via the suspension bracket 300. The traveling device is preferably a tractor. The tractor is connected to the front transmission box via a universal joint. The tractor provides power to the front transmission box 205. This is a prior art, and the internal structure of the front transmission box 205 is not described in detail. During operation, the present invention moves forward with the traveling device, the shovel blade 201 is inserted into the soil, the garlic is shoveled, the front transmission box 205 is actuated, the output shaft 206 rotates, the output shaft 206 drives the swing plate 204 to swing, the swing plate 204 drives the connecting bracket 202 to rotate around the support shaft 203, the connecting bracket 202 drives the shovel blade 201 to swing, and the movement direction of the front transmission box 205 is controlled to make the front end of the shovel blade 201 tilt upward, promote the contact between the garlic and the feeding conveyor belt 901, the feeding conveyor belt 901 transports the garlic backward, the front transmission box 205 moves in the opposite direction, the shovel blade 201 returns to its position, and continues to shovel the next row of garlic, and repeats the above actions to achieve the harvest of garlic.

[0050] Specifically, the segmentation assembly 600 includes a plurality of segmentation transmission shafts rotatably connected to the picking frame 100 and spaced apart in the front-to-back direction, a plurality of rotating conveying members 603 for conveying the garlic backwards are arranged on the segmentation transmission shaft, a plurality of cutting blades 601 are connected to the segmentation transmission shaft between two adjacent rotating conveying members 603, the outer diameter of the rotating conveying member 603 is larger than the outer diameter of the cutting blade 601, a plurality of flexible friction teeth 603a are arranged on the periphery of the rotating conveying member 603, and the distance between two adjacent rotating conveying members 603 is less than the minimum outer diameter of the smallest garlic.

[0051] The garlic outputted backwards through the feed conveyor belt 901 falls onto the rotating conveyor member 603, the garlic leaves are cut and crushed by the continuously rotating cutting blade 601, and the garlic heads are transmitted backwards to the next rotating conveyor member 603 under the action of the continuously rotating rotating conveyor member 603, and finally outputted backwards through the rotating conveyor member 603 at the end, thereby realizing the separation of the garlic leaves and the garlic heads, and realizing the transportation of the garlic heads at the same time.

[0052] In order to further facilitate the discharge after picking up, the rear part of the picking frame 100 is connected to the first recovery component 800 corresponding to the segmentation component 600, and the first recovery component 800 includes a first rotating shaft 805 and a second rotating shaft rotatably connected to the left and right ends of the picking frame 100, and four supporting seats 801 arranged in a rectangular shape are arranged on the lower side of the picking frame 100, and the first rotating shaft 805 and the second rotating shaft are respectively connected to the first transmission wheel 806 and the second transmission wheel, and the first rotating shaft 805 and the second rotating shaft are respectively rotatably connected to the supporting seats 801 spaced apart in the front and rear directions, and the first transmission wheel 806 is connected to the second transmission wheel via the recovery conveyor belt 802, and the recovery conveyor belt 80 2 is arranged with a plurality of flexible conveying rods 803. In actual implementation, the height of the upper edge of the recovery conveyor belt 802 can be higher than the height of the upper edge of the conveying rod 803 to prevent the garlic from falling out of the recovery conveyor belt 802; the distance between two adjacent conveying rods 803 is less than the minimum outer diameter of the garlic, and the picking frame 100 is fixedly connected with a conveying transmission box 804, and the output end of the conveying transmission box 804 is connected to the first rotating shaft 805; the conveying transmission box 804 is fixedly connected with a motor, and the motor is used as a power source for driving the first transmission wheel 806 to rotate. It is a prior art, and the transmission structure inside the conveying transmission box 804 is not drawn, but it does not affect the understanding of this solution by technicians in this field.

[0053] The garlic heads output by the splitting component 600 fall onto the conveying rod 803 of the first recovery component 800. When a batch of picking is completed, the walking device stops moving forward, and the garlic heads on the recovery conveyor belt 802 need to be recovered, the motor in the conveying transmission box 804 is activated to transport the garlic heads to the outside of the picking frame 100. A space for accommodating a collection piece is reserved between the right end of the picking frame 100 and the right side of the first recovery component 800. A collection piece such as a recovery bag or a recovery frame is placed outside the conveying direction of the recovery conveyor belt 802 to collect the garlic heads output by the splitting component 600.

[0054] This embodiment realizes the harvesting, splitting and recycling of root crops such as garlic, thereby improving the operation efficiency.

[0055] Example 2

[0056] Reference Figures 11 to 17 , which is the second embodiment of the present invention, provides a picking harvester that can screen large garlic and small garlic.

[0057] Specifically, the picking frame 100 at the rear end of the first recovery component 800 is connected to the screening component 2000, and the picking frame 100 at the rear end of the screening component 2000 is connected to the conveying component 1000 for continuing to convey the garlic backwards, and the conveying component 1000 includes a conveying shaft 1002 rotatably connected to the picking frame 100, and a plurality of rotating conveying members 1001 are arranged on the conveying shaft 1002. The rotating conveying member 1001 has the same structure as the rotating conveying member 603, and the distance between two adjacent rotating conveying members 1001 is less than the outer diameter of the garlic; the conveying component 100 0 is connected to the picking frame 100 below, and the structure of the second recycling component 700 is similar to that of the first recycling component, but the size is different, wherein the first recycling component 800 and the second recycling component 700 share a power source, the second recycling component 700 and the first recycling component 800 share a first rotating shaft 805, and the first transmission wheel 806 in the second recycling component 700 is connected to an end extending backward from the first rotating shaft 805, and the material after being conveyed by the conveying component 1000 falls onto the recovery conveyor belt 802 in the second recycling component 700.

[0058] The large garlic bulbs conveyed onto the rotating conveyor 1001 fall backward onto the recovery conveyor belt 802 of the second recovery assembly 700 under the action of the continuously rotating rotating conveyor 1001 .

[0059] In order to further realize the screening of garlics of different sizes, the screening component 2000 includes a screening box 2001 connected to the inner side of the picking frame 100, and a plurality of connection ports c are arranged on the screening box 2001. A plurality of connecting rods 2004 that can swing up and down and correspond to the connection ports c are connected to the screening box 2001. One end of the connecting rod 2004 that passes through the corresponding connection port c is hinged with a screening plate 2002, and a plurality of screening drop holes b are arranged on the screening plate 2002. A baffle plate 2003 is fixedly connected to the picking frame 100 close to the end of the front group of segmentation components 600. The crops cut by the front group of cutting components 600 pass over the baffle plate 2003 and fall onto the screening plate 2002. The screening hole b is set close to the end of the baffle plate 2003 relative to the screening box 2001. The materials falling from the screening hole b fall onto the front recovery conveyor belt 802. The upper edge of the screening box 2001 has an inclined portion, which is inclined downward toward the direction of the rear cutting component 600. When the screening plate 2002 swings upward, the materials that have not fallen from the screening hole b are thrown out by the screening plate 2002 and fall onto the rear conveying component 1000.

[0060] In order to further realize the screening and backward throwing of materials on the screening plate 2002, a screening motor 2007 is fixedly connected to the lower side of the screening box 2001, and a vertically arranged screening transmission screw 2008 is rotatably connected to the center of the screening box 2001 in the left and right directions. The screening transmission screw 2008 is threadedly connected with a screening transmission block 2006 that is slidably connected to both sides of the screening box 2001, and a plurality of connecting ears 2006a corresponding to the connecting rod 2004 are arranged on one side of the screening transmission block 2006 relative to the connecting port c, and the connecting rod 2004 is hinged on the connecting ear 2006a; the left and right ends of the screening transmission screw 2008 are fixedly connected with vertically arranged guide rods 2005 in the screening box 2001 in the outward direction, and the screening transmission block 2006 can slide up and down along the guide rods 2005.

[0061] In the initial state, the screening plate 2002 is slightly tilted downward, and the front side of the screening plate 2002 can basically contact the rear side of the baffle plate 2003. The rear side of the baffle plate 2003 is tilted downward from front to back, and the lower part of the baffle plate 2003 is tilted forward and extends to the front of the recovery conveyor belt 802 of the first recovery component 800, so as to prevent the chopped garlic leaves from falling onto the conveying rod 803 between the recovery conveyor belt 802. The garlic heads segmented by the cutting assembly fall onto the screening plate 2002, slide down along the upper surface of the screening plate 2002 to the screening drop hole b, and the small garlic heads fall onto the conveying rod 803 of the first recovery component 800 through the screening drop hole b. The screening motor 2007 is timed to operate, and the screening transmission screw 2008 rotates. The transmission block 2006 moves in the height direction, and the screening transmission block 2006 drives the screening plate 2002 to swing up and down through the connecting rod 2004, and controls the action direction of the screening motor 2007, so that the screening plate 2002 swings upward quickly and regularly, and at the same time, the feeding conveyor belt 901 slows down, and the screening plate 2002 swings up to the set angle, and the large garlic is thrown backward or falls on the top of the screening box 2001 and then slides down to the rear transmission component, and the screening motor 2007 quickly reverses to make the screening plate 2002 quickly return to the initial state, and the continuously rotating conveying member 1001 conveys the large garlic backward and falls on the conveying rod 803 of the second recovery component 700, so as to realize the screening and independent recovery of garlic of different sizes.

[0062] Example 3

[0063] Reference Figure 4 , Figure 5 and Fig.10 , which is the third embodiment of the present invention, provides a picking harvester, which can further realize the movement of the feeding conveying component 900, the cutting component and the transmission component 1000.

[0064] Specifically, it also includes a driving component 500, which includes a driving motor 501 fixedly connected to the upper front end of the picking frame 100, and the driving motor 501 is a dual-output motor. The two ends of the driving motor 501 are respectively connected to the first driving shaft 502 and the second driving shaft 503, and the ends of the first driving shaft 502 and the second driving shaft 503 extending outward are both rotatably connected to the picking frame 100. The feeding conveying component 900 also includes a first conveying rotating shaft 906 and a second conveying rotating shaft 904 rotatably connected to the picking frame 100, and the first conveying rotating shaft 906 is connected to the first conveying rotating wheel 903 at the left and right ends in the picking frame 100, and the second conveying rotating shaft 904 is connected to the second conveying rotating wheel 905 at the left and right ends in the picking frame 100. The feeding wheel 903 is connected to the second feeding wheel 905 via the feeding conveyor belt 901, and the second feeding wheel 905 is connected to a position close to the connecting bracket 202. The first feeding wheel 903 is behind the second feeding wheel 905 and higher than the first feeding wheel 903. A plurality of flexible feeding rods 902 are arranged on the feeding conveyor belt 901, and the distance between adjacent feeding rods 902 is less than the minimum outer diameter of the garlic. The end of the second driving shaft 503 extending outside the picking frame 100 is connected to the first right rotating wheel 509, and the end of the first conveying shaft 906 extending outside the picking frame 100 is connected to the second right rotating wheel 508. The first right rotating wheel 509 is connected to the second right rotating wheel 508 via the right transmission belt 504, and the end of the first driving shaft 502 extending outside the picking frame 100 is connected to the first left rotating wheel 516.

[0065] In the present embodiment, three split transmission shafts are provided, and a connecting shaft 606 is rotatably connected to the picking frame 100 below the split transmission shaft. For the convenience of description, from front to back, the three split transmission shafts are respectively the first split transmission shaft, the second split transmission shaft and the third split transmission shaft, and the first connecting shaft 606, the second connecting shaft 606 and the third connecting shaft 606 are respectively rotatably connected to the picking frame 100 below the first split transmission shaft, the second split transmission shaft and the third split transmission shaft, and the first connecting shaft 606, the second connecting shaft 606 and the third connecting shaft 606 have the same structure, and a plurality of transmission gears 607 are arranged on each connecting shaft 606, and the transmission gears 607 are meshed with the corresponding rotating conveying member 603; the end of the first split transmission shaft extending to the left outside the picking frame 100 is connected to the second left rotating wheel 517, and the first left rotating wheel 516 is connected to the second left rotating wheel 517 via the left transmission belt and the third The two left rotating wheels 517 are connected, the first split transmission shaft extending to the right outside the picking frame 100 is connected to the first rotating wheel at one end, the second split transmission shaft extending to the right outside the picking frame 100 is connected to the second rotating wheel 511 at one end, the first rotating wheel is connected to the second rotating wheel 511 via the first transmission belt 510507, the second connecting shaft 606 extending to the right outside the picking frame 100 is connected to the third rotating wheel 506, the third connecting shaft 606 extending to the right outside the picking frame 100 is connected to the fourth rotating wheel 505, the third rotating wheel 506 is connected to the fourth rotating wheel 505 via the second transmission belt 515, the third cutting transmission shaft 602 extending to the right outside the picking frame 100 is connected to the fifth rotating wheel 512, the conveying shaft 1002 extending to the right outside the picking frame 100 is connected to the sixth rotating wheel 514, and the fifth rotating wheel 512 is connected to the sixth rotating wheel 514 via the third transmission belt 513.

[0066] During operation, the driving motor 501 is in operation, and the first driving shaft 502 and the second driving shaft 503 rotate simultaneously. The first driving shaft 502 drives the first conveying wheel 903 to rotate via the first right wheel 509, the right transmission belt 504 and the second right wheel 508 in turn. The first conveying wheel 903 drives the second conveying wheel 905 to rotate via the feeding conveyor belt 901. The first driving shaft 502 drives the first cutting transmission shaft 602 to rotate via the first left wheel 516, the left transmission belt and the second left wheel 517 in turn. The first cutting transmission shaft 602 then drives the second cutting transmission shaft 602, the third cutting transmission shaft 602 and the conveying shaft 1002 to rotate in turn. The movement direction of the driving motor 501 is controlled to make the upper surface of the feeding conveyor belt 901 move upward. In this case, each rotating conveying member 603 and the rotating conveying member 1001 drive the crops to be transported backward.

[0067] Example 4

[0068] Reference Figure 3 and Figure 5, which is the third embodiment of the present invention, provides a picking harvester, which can further facilitate the axial limitation of the cutting blade 601.

[0069] Specifically, the cutting blade 601 is slidably connected to the cutting transmission shaft 602, and a limiting shaft 604 is connected inside the picking frame 100 behind each cutting transmission shaft 602. Two adjacent rotating conveying members 603 on a cutting transmission shaft 602 form a group, and a plurality of limiting rods 605 are arranged on the limiting shaft 604 between each group of rotating conveying members 603. The number of limiting rods 605 is one greater than the number of cutting blades 601, and two adjacent limiting rods 605 limit the corresponding cutting blade 601 from moving in the axial direction; one end of the limiting shaft 604 extending outside the picking frame 100 is connected to a limiting disk 604a, and a plurality of connecting holes a are arranged on the limiting disk 604a.

[0070] In the initial state, the limit shaft 604 can rotate. When the limit rod 605 is adjusted to a suitable angle for limiting the axial movement of the cutting blade 601, the fixing bolt is screwed into the connecting hole a and the picking frame 100 to fix the limit shaft 604 on the picking frame 100.

[0071] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A picking harvester, comprising a picking frame (100), characterized in that: Also includes; A harvesting assembly (200), the harvesting assembly (200) comprising a connecting bracket (202) connected to the front of the picking frame (100) and capable of swinging up and down, a plurality of shovel blades (201) being arranged at the lower end of the connecting bracket (202); A feed conveyor assembly (900), the feed conveyor assembly (900) comprising a feed conveyor belt (901) arranged at the rear end of the shovel blade (201) and connected to the picking frame (100), the rear part of the shovel blade (201) being able to dock with the front end of the feed conveyor belt (901) when swinging downward, and the end of the feed conveyor belt (901) away from the shovel blade (201) being inclined upward and extending backward; A splitting assembly (600), the splitting assembly (600) comprising a plurality of splitting transmission shafts rotatably connected to a picking frame (100) and spaced apart in a front-to-rear direction, a plurality of rotating conveying members (603) for conveying the garlic backwards are arranged on the splitting transmission shafts, a plurality of cutting blades (601) are connected to the splitting transmission shafts between two adjacent rotating conveying members (603), and a distance between two adjacent rotating conveying members (603) is less than the smallest outer diameter of the smallest garlic; The rear part of the picking frame (100) is connected to a first recovery component (800) corresponding to the splitting component (600), and the recovery component comprises a first transmission wheel (806) and a second transmission wheel rotatably connected to the left and right ends of the picking frame (100), the first transmission wheel (806) is connected to the second transmission wheel via a recovery conveyor belt (802), a conveying component (1000) for continuing to convey materials backward is connected to the picking frame (100) behind the splitting component (600), a second recovery component (700) is connected to the picking frame (100) below the conveying component (1000), a screening component (2000) for screening large and small materials is connected to the picking frame (100) between the conveying component (1000) and the first recovery component (800), and the materials conveyed by the conveying component (1000) fall onto the recovery conveyor belt (802) in the second recovery component (700); A plurality of rotatable depth limiting wheels (400) are arranged on the outer circumference of the picking frame (100), wherein the lowest position of the rotation circle of the depth limiting wheels (400) is lower than the lowest position of the picking frame (100).

2. The picking and harvesting machine according to claim 1, characterized in that: At least one conveying transmission box (804) is fixedly connected to the picking frame (100), and the output end of the conveying transmission box (804) is connected to the first transmission wheel (806).

3. The picking and harvesting machine according to claim 1, characterized in that: The screening assembly (2000) comprises a screening box (2001) connected to the inner side of a picking frame (100), a plurality of connection ports (c) arranged on the screening box (2001), a plurality of connecting rods (2004) corresponding to the connection ports (c) and capable of swinging up and down connected to the screening box (2001), one end of the connecting rod (2004) passing through the corresponding connection port (c) being hingedly connected to a screening plate (2002), and a plurality of screening plates (2002) being arranged on the screening plate (2002). A material drop hole (b) is provided, and a material baffle plate (2003) is fixedly connected to the inside of the picking frame (100) close to the end of the front group of segmentation components (600). The crops segmented by the front group of segmentation components (600) pass over the material baffle plate (2003) and fall onto the screening plate (2002). The screening material drop hole (b) is arranged close to one end of the material baffle plate (2003) relative to the screening box (2001), and the materials falling from the screening material drop hole (b) fall onto the front recovery conveyor belt (802).

4. The picking and harvesting machine according to claim 3, characterized in that: A screening motor (2007) is fixedly connected to the lower side of the screening box (2001); a vertically arranged screening transmission screw (2008) is rotatably connected inside the screening box (2001); a screening transmission block (2006) slidably connected to both sides of the screening box (2001) is threadedly connected to the screening transmission screw (2008); and the connecting rod (2004) is hinged on the side of the screening transmission block (2006) facing the connecting port (c).

5. The picking and harvesting machine according to claim 1, characterized in that: The upper edge of the screening box (2001) has an inclined portion, which is inclined downward in the direction of the rear dividing assembly (600).

6. The picking and harvesting machine according to claim 3, characterized in that: When the screening plate (2002) swings upward, the material that has not fallen through the screening hole (b) is thrown out by the screening plate (2002) and falls onto the conveying assembly (1000) behind.

7. The picking and harvesting machine according to any one of claims 1 to 6, characterized in that: The upper part of the front end of the picking frame (100) is fixedly connected to a front transmission box (205), and both left and right ends of the front transmission box (205) are connected to output shafts (206) rotatably connected to the picking frame (100), and the output shaft (206) is connected to a swing plate (204), and one end of the swing plate (204) extending forward is hinged to the upper part of the connecting bracket (202).

8. The picking and harvesting machine according to claim 7, characterized in that: The connecting bracket (202) is connected to a suspension bracket (300), and support shafts (203) are respectively fixed at both ends of the suspension bracket (300), and both sides of the connecting bracket (202) are respectively rotatably connected to the support shafts (203).

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