Improved carrot harvester with collecting function

Abstract

The improved carrot harvester with the collecting function comprises a horizontal support, side plates and a connecting frame, a rotating shaft is rotationally installed between the bottoms of the two side plates, a plough shovel assembly is fixedly arranged on the rotating shaft, and the plough shovel assembly comprises a sleeve arranged on the outer side of the rotating shaft in a sleeving mode and plough shovel sets distributed along the axis of the sleeve. Each plough shovel group comprises a plurality of plough shovels; a rolling wheel is rotationally installed on the outer side of each side plate, vibration transmission assemblies are fixedly installed at the shaft diameter positions of the two ends of the rotating shaft, the power output ends of the vibration transmission assemblies are movably connected with separation and collection assemblies, and each separation and collection assembly comprises a swing rod, a swing beam and a separation rod; a first collecting basket and a second collecting basket are fixedly arranged at the bottom of the swing beam, and a raking assembly is arranged at the bottom end of the second collecting basket. According to the carrot harvester, high-frequency and large-amplitude impact crushing of soil can be achieved, harvesting and automatic collection of carrots are synchronously achieved, and the working efficiency of carrot harvesting is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of agricultural machinery, in particular to an improved carrot harvester with a collection function. Background Technique

[0002] The carrot planting area in China is close to 40% of the total world carrot planting area, and the total output accounts for about 1 / 3 of the world's total output. China is the world's largest carrot producer. However, the degree of harvesting mechanization and automation is low, and the traditional manual harvesting method is still mainly used, which requires a large amount of manpower, time-consuming, material-consuming and labor-consuming. The low harvesting efficiency has become a bottleneck restricting the improvement of the planting efficiency of the carrot industry. Although there are imported integrated harvesters from abroad that can realize work such as excavation, conveying, and root-leaf separation, due to China's vast territory, complex terrain, and non-standard domestic agronomic requirements, etc., the large-scale carrot harvesting machinery imported from abroad cannot well meet the domestic needs; while the domestically developed carrot harvesters, although they have functions such as vibration, conveying, and stem and leaf cutting, can improve production efficiency to a certain extent, but have the disadvantages of complex design and unstable harvesting, and it is difficult to avoid the contact and friction between the machine and the carrot fleshy roots, resulting in damage to the epidermis of the fleshy roots and cannot be used for long-term cold storage.

[0003] In the technical solution previously designed by the author's team (Chinese utility model patent: CN214482261U, a carrot harvester with a collection function), a plurality of plowshares arranged side by side are fixedly arranged on the bottom beam. The shape of the plowshare is arrow-shaped, with a pointed front end and a small thickness, and a flat rear end and a large thickness. The plowshare is obliquely fixedly installed on the bottom beam through a positioning sleeve; during use, the plowshare is inserted into the soil. When the tractor drags the harvester to move forward as a whole, the plowshare continuously lifts the soil. Under the resistance of the soil in front, the lifted soil slides backward along the surface of the plowshare, and then crosses the top of the bottom beam and falls on the separation and collection assembly at the rear, thereby realizing the fragmentation of the soil and the separation of the carrots from the soil. In this technical solution, the vibration transmission assembly uses a cam push rod mechanism to convert the rotational motion of the rotating shaft into the horizontal reciprocating motion of the push rod, and a crank-slider mechanism composed of the push rod and the swing rod is used to convert the horizontal reciprocating motion of the push rod into the up-and-down reciprocating swing motion of the swing rod in the vertical plane, thereby driving the separation rod to swing up and down reciprocally to impact and fragment the soil falling on it. At the same time, a collection box is rotatably connected below the end of the side plate and is located below the vibration separation assembly. The collection box is mainly a hollow shell with a heart-shaped cross-section. A plurality of sand discharge holes are opened on the bottom side wall of the hollow shell, so that some of the fine soil that enters the hollow shell together with the carrots can be discharged to the ground through the sand discharge holes, thereby reducing the soil mixed in the carrots.

[0004] However, the author found in actual use that the technical effect of this technical solution still has some shortcomings: first, since the soil is forced to be pushed to the rear side, the bottom soil is often relatively moist and has strong adhesion, so it is easy for the soil to accumulate on the plow shovel and then be directly discharged from both sides, and cannot smoothly reach the separation and collection components at the rear side; secondly, since the soil is forced to be pushed to the rear side and naturally slides onto the separation and collection components, the vertical drop of the soil is small, the impact and crushing effect is poor, and the separation effect of the separation and collection components cannot be fully demonstrated; thirdly, in its technical solution, the reciprocating swing frequency of the pendulum arm is the same as the rotation frequency of the roller. The rotation frequency is low, so the impact effect between the soil and the separation rod is poor. At the same time, due to the limited distance of the horizontal reciprocating motion of the top rod, the swing amplitude of the swing arm after transmission is not large, so the impact force and shaking-off effect between the separation rod and the soil are also poor; finally, similarly, since the crushed soil is easier to enter the collection box, and the fluidity of the soil is poor, the discharge of the soil depends on the vibration of the collection box itself, and the effect is poor. Moreover, the collection box can only collect carrots that roll off the separation rod, while the carrots that fall from the gap at the front end of the separation rod are retained in the surface soil, and manual picking is required to complete the collection of the carrots, and the collection effect is poor. Utility Model Content

[0005] The utility model aims to overcome the deficiencies of the prior art and proposes an improved carrot harvester with a collecting function. The utility model adopts a method of actively digging soil and carrots and throwing them to the rear side, so as to facilitate subsequent soil impact crushing and separation of carrots from the soil. While reducing damage to the fleshy roots of carrots, it can effectively crush larger soil blocks. A sprocket drive and a crank slider mechanism are used to realize power transmission, so that high-frequency and large-scale impact crushing of the soil can be realized, so that the soil crushing is more sufficient and thorough, and the automatic collection of carrots can be realized at the same time.

[0006] In order to achieve the above effects, the technical solution adopted by the utility model is:

[0007] An improved carrot harvester with a collecting function comprises a horizontal support, side plates fixedly connected to the bottoms of both sides of the horizontal support, and a connecting frame fixedly connected to the top of the horizontal support, a rotating shaft is rotatably installed between the bottoms of the two side plates, a plowshare assembly is fixedly arranged on the rotating shaft, the plowshare assembly comprises a sleeve sleeved on the outer side of the rotating shaft, and plowshare groups arranged and distributed along the axis of the sleeve, and each plowshare group comprises a plurality of plowshares uniformly distributed circumferentially around the circumferential surface of the sleeve;

[0008] A roller is rotatably mounted on the outer side of each side plate, and one end of the rotating shaft is transmission-connected to the rotating shaft of one of the rollers through a gear pair;

[0009] Vibration transmission components are fixedly installed at both ends of the shaft diameter of the rotating shaft. The power output end of the vibration transmission component is movably connected to a separation and collection component rotatably installed between the ends of two side plates. The separation and collection component includes a swing rod rotatably connected to the inner wall of the side plate and a swing beam fixed between the ends of the two swing rods. One end of the swing rod away from the swing beam is connected to an eccentric shaft, and a plurality of separation rods are fixedly connected to the top of the swing beam;

[0010] A first collection basket located at the rear side below the separation rods and a second collection basket located at the front side below the separation rods are fixedly arranged at the bottom of the swing beam. A raking component inclined downward and forward is arranged at the bottom end of the second collection basket.

[0011] Further, the plowshare includes an arc-shaped connecting plate matching the outer cylindrical surface of the sleeve and a plow blade fixedly arranged in the middle of the outer surface of the arc-shaped connecting plate. The thickness and width of the plow blade gradually decrease in the direction away from the arc-shaped connecting plate, and the upper surface of the plow blade is a concave arc surface.

[0012] Further, at least one strip-shaped through groove is formed inside the plow blade.

[0013] Further, the plowshares and the separation rods are alternately distributed in the axial direction of the sleeve, and the plowshares can pass through the gap area between two adjacent separation rods during rotation.

[0014] Further, the separation rods are evenly and obliquely distributed on the swing beam, and the higher end of the separation rod is close to the sleeve and located below the outer cylindrical surface side of the sleeve.

[0015] Further, the vibration transmission component includes a driving sprocket fixedly arranged on the rotating shaft of the rotating shaft, a driven sprocket rotatably installed on the inner wall of the side plate, a chain drivingly connecting the driving sprocket and the driven sprocket. An end face of the driven sprocket is fixedly connected with a turntable, and an eccentric shaft is fixedly arranged at the edge of the end face of the turntable.

[0016] Further, the swing rod is a "Z"-shaped connecting rod, and the projections of the two end rod segments in the vertical plane form an inverted "V" structure. A waist-shaped through groove is formed on the rod segment of the swing rod away from the swing beam, and the eccentric shaft is located in the waist-shaped through groove.

[0017] Further, the first collection basket includes a plurality of first arc-shaped rods arranged in parallel and opening upward, and a first cross bar fixedly connected to the outer side of the bottom of each first arc-shaped rod. The second collection basket includes a plurality of second arc-shaped rods arranged in parallel and opening upward, and a second cross bar fixedly connected to the outer side of the bottom of each second arc-shaped rod. The raking component includes a plurality of curve rods arranged in parallel and inclined downward, and a third cross bar fixedly connected to the outer side of the bottom of each curve rod.

[0018] Further, the first arc-shaped rod, the second arc-shaped rod and the curved rod are of an integrally formed structure.

[0019] Further, bearing seats are sleeved on the outer sides of the two end shafts of the rotating shaft, and the tops of the bearing seats are fixedly connected to the bottom surface of the horizontal bracket through suspension rods.

[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0021] 1. By adopting a plowshare assembly with an arc-shaped structure that rotates continuously and progressively, the present utility model uses a method of digging the carrots together with the soil from the root, actively lifting and throwing the soil and the carrots inside it in sections and continuously to the rear side, which helps the soil to fall and impact on the separation assembly, enabling the soil to be fully broken, so as to separate the carrots from the soil, thereby realizing the loosening of the rhizosphere soil of the carrots with less direct contact between the carrot fleshy roots and the machine; the amount of mud on the carrot surface is small, the damage rate of the carrot epidermis is low, and the harvested carrots can be sold immediately or stored in a cold storage.

[0022] 2. By arranging a separation and collection assembly behind the plowshare assembly, and realizing the transmission and driving the separation and collection assembly to swing reciprocally through a vibration transmission assembly formed by a chain wheel transmission mechanism and an eccentric connecting rod transmission mechanism, the large pieces of soil falling above it can be actively broken, greatly improving the soil breakage rate; at the same time, this form of power transmission can enable the separation and collection assembly to swing reciprocally with high frequency and large amplitude, thus ensuring the sufficiency of soil breakage and the degree of soil peeling on the carrot surface, realizing the separation of the carrots from the soil, and the separated carrots can be actively collected through the front and rear two collection baskets, which is convenient for the subsequent packaging and transportation of the carrots.

[0023] 3. By arranging a first collection basket below the rear of the swing beam, the automatic collection of the carrots rolling down from the separation rod is realized, by arranging a second collection basket below the front of the swing beam, the automatic collection of the carrots falling between the separation rods is realized, and by arranging a raking assembly at the front end of the second collection basket, the automatic shoveling and collection of the carrots falling in the surface soil are realized, which can greatly reduce the workload of manually picking up the carrots.

[0024] 4. The structure of the present utility model is simple and easy to use, and can simultaneously realize the harvesting of carrots and the breaking of the soil, greatly improving the working efficiency of carrot harvesting and reducing the cost input. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is one of the three-dimensional structural schematic diagrams of the present utility model;

[0026] Figure 2 is the second three-dimensional structural schematic diagram of the present utility model;

[0027] Figure 3 is the front view structural schematic diagram of the present utility model;

[0028] Figure 4 is the left view structural schematic diagram of the present utility model;

[0029] Figure 5 is the top view structural schematic diagram of the present utility model;

[0030] Figure 6 is the three-dimensional structural schematic diagram of the transmission arrangement between the rotating shaft and the roller;

[0031] Figure 7 is the three-dimensional structural schematic diagram of the plowshare group;

[0032] Figure 8 is the three-dimensional structural schematic diagram of the plowshare;

[0033] Figure 9 is the assembly structural schematic diagram of the plowshare assembly on the rotating shaft;

[0034] Figure 10 is Figure 2 the enlarged structural schematic diagram of part A in

[0035] Figure 11 is the transmission connection structural schematic diagram of the vibration transmission component and the separation and collection component;

[0036] Figure 12 is the left view structural schematic diagram of the separation and collection component;

[0037] Figure 13 is the three-dimensional structural schematic diagram of the separation and collection component;

[0038] Figure 14 is the three-dimensional structural schematic diagram of the swing rod.

[0039] Wherein: 1 horizontal bracket, 101 connecting frame, 2 side plates, 201 guiding groove, 3 plowshare assembly, 301 sleeve, 302 plowshare, 3021 arc-shaped connecting plate, 3022 cutter, 3023 strip-shaped through groove, 4 rotating shaft, 5 roller, 6 vibration transmission component, 601 driving sprocket, 602 driven sprocket, 603 chain, 604 turntable, 605 eccentric shaft, 7 separation and collection component, 701 swing rod, 702 swing beam, 703 separation rod, 704 waist-shaped through groove, 705 first collection basket, 706 second collection basket, 707 raking component, 8 bearing seat, 9 suspension rod, 10 driving gear, 11 driven gear, 12 bearing end cover. Specific embodiments

[0040] The following elaborates on the preferred embodiments of the present utility model in conjunction with the accompanying drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making the protection scope of the present utility model more clearly defined.

[0041] Please refer to Figures 1 to 14 , an improved carrot harvester with a collection function, including a horizontal bracket 1, side plates 2 fixedly connected to the bottoms of both sides of the horizontal bracket 1, and a connecting frame 101 fixedly connected to the top of the horizontal bracket 1. The horizontal bracket 1 is a square frame welded by square pipes; the side plates 2 are vertically arranged and are fixedly connected to the two ends of the horizontal bracket 1 by bolts or welding. The connecting frame 101 is composed of a V-shaped frame plate and an auxiliary rod. The two bottom ends of the V-shaped frame plate and the bottom end of the auxiliary rod are respectively connected to the connecting ear seats on the top of the horizontal bracket 1 through pin shafts, and the top ends of the V-shaped frame plate and the auxiliary rod are connected through a pin shaft, thus forming a triangular connecting frame; a hanging ring is arranged at the top of the connecting frame 101 for mating connection with a tractor to drive the entire harvester to work.

[0042] A rotating shaft 4 is rotatably installed between the bottoms of the two side plates 2. The two ends of the rotating shaft 4 are respectively rotatably installed in the two side plates 2 through rolling bearings (not shown in the figure), so that the rotating shaft 4 is horizontally arranged rotatably and is perpendicular to the traveling direction of the harvester. A roller 5 is rotatably installed on the outer side of each side plate 2, and one end of the rotating shaft 4 is in transmission connection with the rotating shaft of one of the rollers 5 through a gear pair. Preferably, the circumferential surface of the roller 5 adopts a gear structure or a tire structure to enhance the biting force between the roller 5 and the soil surface, so that the roller 5 continuously rolls during the traveling process. As Figure 6 shown, a wheel shaft (not shown in the figure) is fixedly connected to the center of the inner end face of the roller 5. The shaft end of the wheel shaft is rotatably installed at the front end of the bottom of the side plate 2 through a rolling bearing, and a bearing end cover 12 fixedly connected to the inner wall of the side plate 2 by bolts is arranged outside the rolling bearing to prevent the soil raised during the working process of the harvester from entering the rolling bearing and affecting the normal use and service life of the rolling bearing. A driving gear 10 is fixedly sleeved on the wheel shaft of one of the rollers 5 (such as Figure 1 the one located on the left as shown), and a driven gear 11 meshing with the driving gear 10 is fixedly sleeved on the corresponding same-side end of the rotating shaft 4. When the hydraulic system on the tractor presses down the harvester and drags the harvester forward, the roller 5 rolls forward counterclockwise at the angle shown in Figure 1 shown, the driving gear 10 rotates synchronously with the roller 5, thereby driving the driven gear 11 to synchronously rotate clockwise, and then the driven gear 11 drives the rotating shaft 4 to rotate synchronously. The number of teeth of the driving gear 10 is greater than the number of teeth of the driven gear 11, so a speed-increasing transmission is formed, enabling the rotating shaft 4 to rotate at a relatively fast speed.

[0043] A plowshare assembly 3 is fixedly arranged on a rotating shaft 4. As Figure 8 shown, the plowshare assembly 3 includes a sleeve 301 sleeved outside the rotating shaft 4 and a plowshare group arranged along the axis of the sleeve 301. Each plowshare group includes a plurality of plowshares 302 evenly distributed circumferentially around the circumferential surface of the sleeve 301. The sleeve 301 is a hollow cylindrical structure, integrally sleeved outside the middle section of the rotating shaft 4, and fixedly connected to the surface of the rotating shaft 4 through bolts. As Figure 8 shown, the plowshare 302 includes an arc-shaped connecting plate 3021 matching the outer circular surface of the sleeve 301 and a cutter 3022 fixedly arranged in the middle of the outer surface of the arc-shaped connecting plate 3021. Bolting holes are correspondingly formed on both sides of the arc-shaped connecting plate 3021 and the outer circular surface of the sleeve 301. The arc-shaped connecting plate 3021 is fixedly connected to the sleeve 301 through bolts. A plurality of (such as Figure 7 4 shown in the figure) plowshares 302 are evenly distributed on the circumferential surface of the sleeve 301 to form a plowshare group. A plurality of (such as Figure 1 and Figure 9 10 shown in the figure) plowshare groups are arranged in sequence to form the plowshare assembly. The bolt connection method facilitates the assembly and disassembly of the cutter 3022. The thickness and width of the cutter 3022 gradually decrease in the direction away from the arc-shaped connecting plate 3021, and the upper surface of the cutter 3022 is a concave arc surface. Thus, during the operation of the harvester, since the radius of the cutter 3022 is greater than the radius of the roller 5, the end of the cutter 3022 can be inserted into the soil to a certain depth (selected according to the maximum root soil penetration depth of carrots). When the plowshare assembly rotates continuously at a high speed driven by the rotating shaft 4, the cutters 3022 in the same column lift the soil and the carrots inside it forward from the lower rear of the soil, while the cutters 3022 in the next column perform the same soil shoveling process progressively; when the cutters 3022 successively pass over the upper part of the rotating shaft 4, the lifted soil and the carrots inside it are thrown to the side or slide backward and downward along the surface of the cutter.

[0044] Preferably, at least one strip-shaped through groove 3023 is formed inside the cutter 3022 to reduce the weight of the cutter 3022 itself, reduce the contact area between the soil and the cutter surface, reduce the amount of soil adhering to the surface of the cutter 3002, and also facilitate the discharge of some fragmented soil from the strip-shaped channel 3023 during the process of the cutter 3022 lifting the soil. Further, bearing seats 8 are sleeved outside the two ends of the rotating shaft 4, and the top of the bearing seat 8 is fixedly connected to the bottom surface of the horizontal bracket 1 through a suspension rod 9, so as to further enhance the stability of the rotating shaft 4 during operation.

[0045] Vibration transmission components 6 are fixedly installed at the shaft diameters at both ends of the rotating shaft 4. As Figure 10As shown, the vibration transmission assembly 6 includes a driving sprocket 601 fixedly arranged on the rotating shaft 4, a driven sprocket 602 rotatably mounted on the inner wall of the side plate 2, and a chain 603 drivingly connecting the driving sprocket 601 and the driven sprocket 602. A turntable 604 is fixedly connected to the inner end face of the driven sprocket 602, and an eccentric shaft 605 is fixedly arranged at the edge of the end face of the turntable 604. Mounting sleeves are integrally arranged on both end faces of the driving sprocket 601. The mounting sleeves are sleeved on the rotating shaft 4 and are fixedly connected by bolts, so that the driving sprocket 601 can rotate synchronously with the rotating shaft 4. The shaft end of the driven sprocket 602 is rotatably mounted in the inner side face of the side plate 2 through a rolling bearing, and a bearing end cover is arranged outside the rolling bearing. Through the meshing transmission of the chain 603, the driving sprocket 601 can drive the driven sprocket 602 to rotate synchronously in the same direction.

[0046] A separation and collection assembly 7 rotatably mounted between the ends of the two side plates 2 is movably connected to the power output end (eccentric shaft 605) of the vibration transmission assembly 6. As Figure 12 and Figure 13 shown. The separation and collection assembly 7 includes a swing rod 701 rotatably connected to the inner wall of the side plate 2 and a swing beam 702 fixed between the ends of the two swing rods 701. As Figure 14 shown, the swing rod 701 is a "Z"-shaped connecting rod, and the projections of the two end rod segments in the vertical plane are in an inverted "V" structure. The middle of the rod segment of the swing rod 701 close to the swing beam 702 is mounted on the inner wall of the side plate 2 through a pin shaft, so that the swing rod 701 can freely rotate around the pin shaft. A waist-shaped through groove 704 is formed in the rod segment of the swing rod 701 far from the swing beam 702, and the eccentric shaft 605 is located in the waist-shaped through groove 704 (as Figure 11 shown), so that an eccentric connecting rod driving mechanism is formed among the turntable 604, the eccentric shaft 605 and the swing rod 701, converting the rotational movement of the turntable 604 into the reciprocating swing of the swing rod 701 in the vertical plane. The swing amplitude of the swing rod 701 is large, which is beneficial to the breaking and falling of the soil and also beneficial to the separation of the carrots from the soil.

[0047] A plurality of separating rods 703 are fixedly connected to the top of the swing beam 702. The separating rods 703 are evenly and obliquely distributed on the swing beam 702, and the higher ends of the separating rods 703 are close to the sleeve 301 and are located below the top surface of the bottom beam 3. So that the carrots and their root soils continuously lifted by the plowshare 302 pass above the sleeve 301 and are thrown or slide along the surface of the plowshare 302 and then fall on the plurality of separating rods 703, and the process of soil fragmentation is completed during the falling and impact process. Since the thrown soil itself has a large impulse, when the soil impacts on the surface of the separating rods 703, better preliminary crushing can be obtained. During the process of the separating rods 703 reciprocating up and down following the swing beam 702, the crushing effect of the soil can be effectively enhanced, and at the same time, the carrots can be separated from the soil and stay on the top of the separating rods 703, and then fall to the rear of the harvester along the bottom of the top of the separating rods 703, and finally fall on the surface of the soil that has scattered back to the ground, which is convenient for the picking of carrots. Preferably, a rubber sleeve (not shown in the figure) is sleeved outside the separating rods 703 to weaken the mechanical damage caused by the impact of the carrots falling on the separating rods 703. Further preferably, in this embodiment, the number of teeth of the driving sprocket 601 is greater than the number of teeth of the driven sprocket 602, so that the rotational speed of the rotating shaft 4 is further increased and output, so that the swing rod 701 can swing at a higher frequency, thereby effectively increasing the number of impacts of the soil on the separating rods 703, ensuring the sufficiency of soil fragmentation and the sufficiency of soil peeling on the surface of the carrots.

[0048] Furthermore, the plowshares 302 and the separating rods 703 are alternately distributed in the axial direction of the sleeve 301, and the plowshares 302 can pass through the gap area between two adjacent separating rods 703 during rotation, and the distance between the end of the separating rod 703 and the surface of the sleeve 301 is small. In this way, the lifted carrots and soil can be made to fall on the separating rods 703 as much as possible, so that more soil can be broken by vibration and separated from the carrots, which is beneficial to subsequent plowing operations and the picking of carrots, and reduces the amount of subsequent cleaning work.

[0049] Such as Figure 12 and Figure 13As shown in the figure, a first collection basket 705 located at the rear side below the separating rod 703 and a second collection basket 706 located at the front side below the separating rod 703 are fixedly arranged at the bottom of the swing beam 702 respectively. A rake assembly 707 inclined downward and forward is arranged at the bottom end of the second collection basket 706. The first collection basket 705 includes a plurality of first arc-shaped rods arranged in parallel and opening upward, and a first cross bar fixedly connected to the outer sides of the bottoms of the respective first arc-shaped rods. The second collection basket 706 includes a plurality of second arc-shaped rods arranged in parallel and opening upward, and a second cross bar fixedly connected to the outer sides of the bottoms of the respective second arc-shaped rods. The rake assembly 707 includes a plurality of curved rods arranged in parallel and inclined downward, and a third cross bar fixedly connected to the outer sides of the bottoms of the respective curved rods. In this embodiment, the first collection basket 705, the second collection basket 706 and the rake assembly 706 are all welded with steel bars. Preferably, the first arc-shaped rod, the second arc-shaped rod and the curved rod are of an integrally formed structure. In this way, the first arc-shaped rod, the second arc-shaped rod and the curved rod can be formed by bending a single steel bar, and then arranged in parallel at equal intervals, and welded and fixed by a plurality of cross bars perpendicular thereto to form an overall hollow frame structure. Then, the protruding parts between the two arc-shaped rods are integrally welded to the bottom of the swing beam 702, so that the hollow frame structure can swing reciprocally synchronously with the swing beam 702 as a whole.

[0050] Specifically, the end of the first arc-shaped rod is located above the rear side of the rear end of the separating rod 703, so that the carrots rolling down from the separating rod 703 or the carrots falling from the gap between the ends of two adjacent separating rods 703 can all fall into the first collection basket 705 for collection. The second arc-shaped rod is located below the middle of the separating rod 703, and the carrots falling from the gap between two adjacent separating rods 703 in the middle of the separating rod 703 can partially fall into the second collection basket 706 for collection. The bottom end of the curved rod is located between the lowest position of the movement track of the tip of the shovel 3022 and the lowest position of the outer circumferential surface of the roller 5, that is, within the soil layer lifted by the shovel 3022. The top end of the curved rod is smoothly connected to one end of the second arc-shaped rod. In this way, during the forward movement of the harvester, the soil broken by the separating rod 703 falls on the ground surface at the front end of the separating rod 703, and some carrots may also fall on the ground surface from the gap between the front ends of two adjacent separating rods 703. The forward moving curved rod combs the ground surface soil, and the carrots falling into the ground surface soil will be shoveled up by the curved rod and stay on the surface of the rake assembly 707. When the curved rod swings up and down reciprocally with the swing beam 702, the end of the curved rod is lifted upward, making its end higher than the position where it is connected to the second arc-shaped rod. Then, the carrots staying on the surface of the rake assembly 707 will naturally roll or be thrown into the second collection basket 706. Due to the convex design at the connection position of the curved rod and the second arc-shaped rod, the carrots entering the second collection basket 706 will not easily roll out from the rake assembly 707 again.

[0051] Preferably, the distance between two adjacent second arc-shaped rods, two adjacent first arc-shaped rods, and two adjacent curved rods is smaller than the distance between two adjacent separating rods 703, so that the carrots falling from the gap between two adjacent separating rods 703 will not fall again, and it can meet the secondary falling of the soil crushed and fallen onto the ground surface, avoiding the accumulation of soil in the first collection basket 705 and the second collection basket 706 and causing an adverse impact on the collection of carrots. During the swinging process of the first collection basket 705 and the second collection basket 706, the soil adhering to the surface of the carrots can be further shaken off. Further, protective nets can be arranged at both ends of the first collection basket 705 and the second collection basket 706 to prevent the carrots placed therein from falling from the ends due to the swinging or vibration of the basket body.

[0052] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. An improved carrot harvester with a collection function, comprising a horizontal bracket (1), side plates (2) fixedly connected to the bottoms of both sides of the horizontal bracket (1), and a connecting frame (101) fixedly connected to the top of the horizontal bracket (1), characterized in that: A rotating shaft (4) is rotatably installed between the bottoms of two side plates (2). A plowshare assembly (3) is fixedly arranged on the rotating shaft (4). The plowshare assembly (3) includes a sleeve (301) sleeved outside the rotating shaft (4), and a plowshare group arranged along the axis of the sleeve (301). Each plowshare group includes a plurality of plowshares (302) circumferentially and evenly distributed around the circumferential surface of the sleeve (301). A roller (5) is rotatably installed on the outside of each side plate (2). One end of the rotating shaft (4) is in transmission connection with the rotating shaft of one of the rollers (5) through a gear pair. Vibration transmission components (6) are fixedly installed at both ends of the rotating shaft (4). The power output end of the vibration transmission component (6) is movably connected with a separation and collection component (7) rotatably installed between the ends of the two side plates (2). The separation and collection component (7) includes a swing rod (701) rotatably connected to the inner wall of the side plate (2), and a swing beam (702) fixed between the ends of the two swing rods (701). One end of the swing rod (701) far from the swing beam (702) is connected to an eccentric shaft (605). A plurality of separation rods (703) are fixedly connected to the top of the swing beam (702). At the bottom of the swing beam (702), a first collection basket (705) located at the rear side below the separation rods (703) and a second collection basket (706) located at the front side below the separation rods (703) are fixedly arranged respectively. A raking component (707) inclined downward to the front side is arranged at the bottom end of the second collection basket (706).

2. The improved carrot harvester with a collection function according to claim 1, wherein: The plowshare (302) includes an arc-shaped connecting plate (3021) matching the outer circular surface of the sleeve (301), and a cutter (3022) fixedly arranged in the middle of the outer surface of the arc-shaped connecting plate (3021). The thickness and width of the cutter (3022) gradually decrease along the direction away from the arc-shaped connecting plate (3021), and the upper surface of the cutter (3022) is a concave arc surface.

3. An improved carrot harvester with a collection function according to claim 2, characterized in that: At least one strip-shaped through groove (3023) is formed inside the cutter (3022).

4. An improved carrot harvester with a collection function according to claim 2, characterized in that: The plowshares (302) and the separation rods (703) are alternately distributed in the axial direction of the sleeve (301), and the plowshares (302) can pass through the gap area between two adjacent separation rods (703) during rotation.

5. An improved carrot harvester with a collection function according to claim 1, characterized in that: The separation rods (703) are evenly and obliquely distributed on the swing beam (702), and the higher end of the separation rods (703) is close to the sleeve (301) and is located below the outer circular surface side of the sleeve (301).

6. An improved carrot harvester with a collection function according to any one of claims 1 to 5, characterized in that: The vibration transmission component (6) includes a driving sprocket (601) fixedly arranged on the rotating shaft (4), a driven sprocket (602) rotatably installed on the inner wall of the side plate (2), a chain (603) connecting the driving sprocket (601) and the driven sprocket (602), an end face of the driven sprocket (602) is fixedly connected with a turntable (604), and an eccentric shaft (605) is fixedly arranged at the edge of the end face of the turntable (604).

7. An improved carrot harvester with a collection function according to claim 6, characterized in that: The swing rod (701) is a "Z"-shaped connecting rod, and the projections of the two end rod segments in the vertical plane form an inverted "V" structure. A waist-shaped through groove (704) is formed in the rod segment of the swing rod (701) away from the swing beam (702), and the eccentric shaft (605) is located in the waist-shaped through groove (704).

8. An improved carrot harvester with a collection function according to claim 1, characterized in that: The first collection basket (705) includes a plurality of first arc-shaped rods arranged in parallel and opening upward, and a first cross bar fixedly connected to the outer sides of the bottoms of the first arc-shaped rods. The second collection basket (706) includes a plurality of second arc-shaped rods arranged in parallel and opening upward, and a second cross bar fixedly connected to the outer sides of the bottoms of the second arc-shaped rods. The raking assembly (707) includes a plurality of curved rods arranged in parallel and inclined downward, and a third cross bar fixedly connected to the outer sides of the bottoms of the curved rods.

9. An improved carrot harvester with a collection function according to claim 8, characterized in that: The first arc-shaped rod, the second arc-shaped rod and the curved rod are of an integrally formed structure.

10. An improved carrot harvester with a collection function according to claim 1, characterized in that: Bearing seats (8) are sleeved on the outer sides of the two end shafts of the rotating shaft (4), and the tops of the bearing seats (8) are fixedly connected to the bottom surface of the horizontal bracket (1) through suspension rods (9).

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