Carrot harvester

Abstract

The utility model relates to the technical field of agricultural mechanical equipment, in particular to a carrot harvester which comprises a supporting frame provided with a driving wheel assembly and further comprises a first installation frame, a second installation frame and a third installation frame. The two mounting bases are arranged on the first mounting frame through the two screw driving assemblies correspondingly. The two clamping and conveying mechanisms are arranged between the two mounting bases and the supporting frame and used for clamping and conveying carrots. The two ploughing cutters are both connected to a frame body of the supporting frame in a sliding mode, and the two ploughing cutters are fixedly connected with the two clamping and conveying mechanisms through L-shaped frames correspondingly; the soil screening mechanism is arranged below the two clamping and conveying mechanisms and used for cleaning soil remaining on the surface of the carrots. According to the carrot harvester, through the reasonable structural design, the defects of traditional manual harvesting and existing mechanical harvesting are overcome, and the carrot harvesting efficiency and quality are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery equipment technical field especially relates to a carrot harvester. BACKGROUND

[0002] Carrot is one of important planting vegetables in China, and its planting area is huge, and its yield and planting area are in the world first, but the mechanization degree of carrot harvesting is low, and the most critical is the harvesting technology in its production technology, at present, the domestic in solving the problem of carrot harvesting mostly adopts the traditional manual harvesting, and a small part adopts the harvester, but there are some drawbacks.

[0003] The traditional manual harvesting mode has the following problems: the staff needs to bend over, crouch and other actions, and long time operation will cause physical fatigue, and the labor intensity is big.In addition, the manual harvesting efficiency is low, and it is difficult to meet the demand of large-scale planting.This mode not only increases the labor cost, but also affects the harvesting speed and quality of carrot.

[0004] Although the existing harvester improves the harvesting efficiency to some extent, there are still some problems: directly pulling out the carrot can easily cause mechanical damage, affecting the quality and market value of carrot.At the same time, the surface of the harvested carrot adheres to a large amount of soil, which needs to be cleaned manually, which increases the workload and time cost of subsequent processing, and it is not convenient to collect the harvested carrot, and the whole harvesting process is not automated;These problems seriously restrict the development and benefit improvement of carrot planting industry, and the market urgently needs a kind of carrot harvesting machine which can efficiently and nondestructively harvest carrot and complete the soil cleaning operation at the same time.The harvester should be able to adapt to different planting environments, improve the harvesting efficiency, reduce the labor intensity, and ensure the quality of carrot, and the existing technology needs to be improved in view of the above problems. SUMMARY

[0005] The utility model aims at solving the shortcoming of prior art, and provides a carrot harvester.

[0006] In order to achieve the above object, the utility model adopts the technical scheme as follows: a carrot harvester, including the support frame that is installed with the drive wheel assembly, still including:

[0007] The first mounting bracket is fixedly connected to the top of the support frame;

[0008] Two mounting seats are arranged on the first mounting bracket through two screw rod driving assemblies respectively;

[0009] Two clamping conveying mechanisms are arranged between two mounting seats and support frames respectively, and are used for clamping and conveying carrot;

[0010] Two ploughing cutters are slidably connected to the frame body of the support frame, and the two ploughing cutters are fixedly connected to two clamping conveying mechanisms through L-shaped frames.

[0011] A soil screening mechanism is arranged below the two clamping conveying mechanisms and is used for cleaning the soil remaining on the surface of the carrots.

[0012] A collecting mechanism is arranged on the top of the support frame and is used for collecting the carrots conveyed by the clamping conveying mechanism.

[0013] Preferably, the driving wheel assembly comprises:

[0014] Two universal wheels are symmetrically mounted on the bottom of the support frame.

[0015] Two first rotating shafts are symmetrically rotatably mounted on the bottom of the support frame, and the surface of each first rotating shaft is fixedly connected with a rear driving wheel.

[0016] A second rotating shaft is rotatably connected in the frame body of the support frame, and the two first rotating shafts are drivingly connected to the second rotating shaft through a chain transmission system.

[0017] A first bevel gear is fixedly connected to the surface of the second rotating shaft.

[0018] A first motor is fixedly mounted in the frame body of the support frame, the output shaft end of the first motor is fixedly connected with a second bevel gear, and the second bevel gear is meshed with the first bevel gear.

[0019] Preferably, the clamping conveying mechanism comprises:

[0020] Two tensioning frames are obliquely fixed above the support frame, and a plurality of tensioning adjusting members are equidistantly arranged on the opposite side of each tensioning frame, one end of each tensioning frame is rotatably connected with a first pulley, the other end is slidably inserted with an extension plate, the extension plate and the tensioning frame are positioned through bolts, and a plurality of first auxiliary wheels are equidistantly rotatably connected on one side of the tensioning frame.

[0021] Two second pulleys are rotatably arranged at the end of the extension plate through first supports, and the surfaces of the first pulley and the second pulley are jointly sleeved with a conveying belt.

[0022] Two second motors are fixedly mounted on the mounting seat, and the output shaft ends of the two second motors are fixedly connected with the two first pulleys.

[0023] Preferably, the clamping conveying mechanism further comprises a second support, the second support is mounted on the side wall of the extension plate through bolts, an adjusting wheel is rotatably mounted on the second support, and the rolling surface of the adjusting wheel is in contact with the inner wall of the conveying belt.

[0024] Preferably, the tension adjusting member comprises:

[0025] A mounting plate is fixed on the top of the tensioning frame, the bottom of the mounting plate is rotationally connected with a rotating frame, the end of the rotating frame is rotationally connected with a tensioning wheel, and the rolling surface of the tensioning wheel is in contact with the inner wall of the conveying belt;

[0026] A spring is fixedly connected with the end of the rotating frame and the other end of the spring is fixedly connected with the tensioning frame.

[0027] Preferably, the first support is fixedly provided with a straw holder at the end, and the end of the straw holder is arc-shaped and upwardly curved;

[0028] A third support is fixedly installed on the bottom of the tensioning frame at the side, the top of the third support is rotationally connected with a third rotating shaft, the surface of the third rotating shaft is fixedly connected with a gear one and a third bevel gear, the surfaces of the two gear ones are jointly meshed with a toothed belt, and the surface of the toothed belt is provided with a saw blade;

[0029] A second mounting frame is fixedly connected on the top of the supporting frame, and the top of the second mounting frame is symmetrically and fixedly connected with two leaf guiding covers.

[0030] The sidewall of one of the third supports is rotationally connected with a fourth rotating shaft, the surface of the fourth rotating shaft is fixedly connected with a fourth bevel gear meshing with the third bevel gear, and the fourth rotating shaft and the second rotating shaft are synchronously and rotationally driven through a belt transmission system.

[0031] Preferably, the soil screening mechanism comprises:

[0032] Two connecting plates are fixedly connected on the bottom of the tensioning frame at the side.

[0033] A cleaning brush is rotationally connected between the two connecting plates.

[0034] Preferably, the collecting mechanism comprises:

[0035] A mounting frame is fixedly installed on the top of the supporting frame, and a plurality of first rolling shafts are rotationally arranged on the inner wall of the mounting frame.

[0036] Two collecting baskets are arranged on the top of the mounting frame, and the bottom of the collecting basket is in contact with the rolling surface of the first rolling shaft.

[0037] A sliding groove is formed on the top of the mounting frame, and a sliding block is slidably connected in the sliding groove.

[0038] A pushing block is arranged above the mounting frame and used for pushing the two collecting baskets to move, and the bottom of the pushing block is fixedly connected with the sliding block.

[0039] A pushing assembly is arranged on the frame body of the support frame and used for pushing the sliding block to slide along the inside of the sliding groove.

[0040] Preferably, the pushing assembly comprises a second driving motor fixedly installed on the frame body of the support frame, and a second threaded rod fixedly connected to the output shaft end of the second driving motor and threadedly connected with the sliding block through a second threaded sleeve.

[0041] Preferably, the collecting mechanism further comprises:

[0042] A second roller fixedly connected to the top of the support frame;

[0043] Two guide frames, each fixedly connected to the surface of the second roller, and a plurality of rollers rotatably connected between the inner walls of each guide frame and used for guiding the sliding of the collecting basket.

[0044] Compared with the prior art, the utility model has the following beneficial effects:

[0045] In the process that the driving wheel assembly drives the carrot harvester to walk, the ploughing cutter can be deeply inserted into the soil, and the soil around the carrot can be removed, so that the carrot can be stably clamped and conveyed by the clamping and conveying mechanism, and mechanical damage caused by direct pulling is avoided.

[0046] The clamping and conveying mechanism of the present application can adjust the tension of the conveying belt through the plurality of tension adjusting members, so as to adapt to carrots of different sizes and shapes. BRIEF DESCRIPTION OF DRAWINGS

[0047] Figure 1 It is a front view of the utility model;

[0048] Figure 2 It is a first overall structure schematic view of the utility model;

[0049] Figure 3 It is a second overall structure schematic view of the utility model;

[0050] Figure 4The partial structure schematic view of the utility model is shown in the figure;

[0051] Figure 5 The A place amplification structure schematic view of the utility model is shown in the figure;

[0052] Figure 6 The support frame and the first mounting frame connection structure schematic view of the utility model is shown in the figure;

[0053] Figure 7 The conveyer belt installation structure schematic view of the utility model is shown in the figure;

[0054] Figure 8 The second rotating shaft and the first bevel gear connection structure schematic view of the utility model is shown in the figure;

[0055] Figure 9 The chute opening structure schematic view of the utility model is shown in the figure;

[0056] Figure 10 The connecting plate and the cleaning brush connection structure schematic view of the utility model is shown in the figure.

[0057] In the figure: 1, support frame; 2, first mounting frame; 3, mounting seat; 4, ploughing cutter; 5, universal wheel; 6, first rotating shaft; 7, rear drive wheel; 8, second rotating shaft; 9, first bevel gear; 10, first motor; 11, second bevel gear; 12, tensioning machine frame; 13, extension plate; 14, first auxiliary wheel; 15, conveyer belt; 16, adjusting wheel; 17, rotating frame; 18, tensioning wheel; 19, spring; 20, straw holder; 21, third rotating shaft; 22, gear one; 23, third bevel gear; 24, toothed belt; 25, sawtooth blade; 26, second mounting frame; 27, guide leaf cleaning cover; 28, fourth rotating shaft; 29, fourth bevel gear; 30, mounting frame; 3001, first roller; 3002, chute; 3003, sliding block; 31, collection basket; 32, pushing block; 33, second drive motor; 34, second threaded rod; 35, guide frame; 36, roller; 37, connecting plate; 38, cleaning brush; 39, second motor. DETAILED DESCRIPTION

[0058] The following description is used to disclose the utility model so that those skilled in the art can realize the utility model. The preferred embodiments in the following description are only as examples, and other obvious variants can be thought of by those skilled in the art.

[0059] Carrots are one of the most important vegetables grown in my country, with a vast planting area. China ranks first in the world in both yield and planting area. However, the mechanization level of carrot harvesting is low. Harvesting technology is the most crucial aspect of carrot production. Currently, most carrot harvesting in China relies on traditional manual labor, with a small portion using harvesting machines. However, both methods have drawbacks. Manual harvesting requires workers to bend over and squat, leading to fatigue over long periods, high labor intensity, and low efficiency. Using existing harvesting machines directly pulls the carrots out, which is prone to mechanical damage, and the surface is covered with a large amount of soil, requiring manual cleaning, which is insufficient to meet market demands. Therefore, this application presents a carrot harvesting machine.

[0060] like Figures 1 to 10 The carrot harvester shown includes a support frame 1 on which a drive wheel assembly is mounted, and also includes:

[0061] The first mounting bracket 2 is fixedly connected to the top of the support frame 1;

[0062] Two mounting bases 3 are respectively mounted on the first mounting bracket 2 via two screw drive assemblies;

[0063] Two clamping and conveying mechanisms are respectively set between the two mounting bases 3 and the support frame 1, and are used to clamp and convey carrots;

[0064] Two plowing blades 4 are slidably connected to the frame of the support frame 1. The two plowing blades 4 are fixedly connected to two clamping and conveying mechanisms through L-shaped frames respectively.

[0065] The soil screening mechanism, located below the two clamping and conveying mechanisms, is used to clean the soil remaining on the surface of the carrot.

[0066] A collection mechanism, located at the top of the support frame 1, is used to collect the carrots conveyed by the clamping and conveying mechanism.

[0067] It should be noted that the screw drive assembly is a drive device for threaded rods and threaded sleeves in the prior art. The screw drive assembly includes a first drive motor, which is fixedly connected to the first mounting bracket 2. The output shaft end of the first drive motor is fixedly connected to a first threaded rod, and a first threaded sleeve is threadedly connected to the first threaded rod. The first threaded sleeve is fixedly connected to the mounting base 3.

[0068] In operation, the carrot harvester can solve the problems of traditional manual harvesting and existing mechanical harvesting, specifically, the carrot harvester is pushed into the field, a large amount of data about the distance between carrots is collected in advance, the harvester is controlled by a controller, the controller can be connected with electrical components in a way of external connection or being installed on the frame body of the support frame 1, the positions of the two mounting seats 3 on the first mounting frame 2 are adjusted by the screw rod driving assembly, so that the distance between the two clamping and conveying mechanisms is adjusted, the carrots are conveniently collected, the soil screening mechanism is installed according to the adjusted distance, in the process that the driving wheel assembly drives the carrot harvester to walk, the ploughing cutter 4 can be deeply inserted into the soil to dig the soil around the carrots, so that the carrots can be stably clamped and conveyed by the clamping and conveying mechanism, and mechanical damage caused by direct pulling is avoided, when the clamped carrots pass through the soil screening mechanism, the soil screening mechanism can effectively clean the soil on the surface of the carrots, manual cleaning is not needed, and the harvesting efficiency is improved, and finally the carrots are dropped into the collecting mechanism for centralized collection.

[0069] The carrot harvester of the present application can flexibly clamp and convey the carrots by arranging the first mounting frame 2 on the top of the support frame 1 and adjusting the positions of the mounting seats 3 by the screw rod driving assembly, the ploughing cutter 4 can prevent the carrots from being damaged in the harvesting process, the soil screening mechanism can effectively clean the soil on the surface of the carrots, and the collecting mechanism further improves the efficiency and automation degree of carrot harvesting, so that the carrot harvester of the present application solves the problems of traditional manual harvesting and existing mechanical harvesting by reasonable structural design, and improves the efficiency and quality of carrot harvesting.

[0070] As an embodiment of the present application, the driving wheel assembly comprises:

[0071] Two universal wheels 5 are symmetrically installed at the bottom of the support frame 1.

[0072] Two first rotating shafts 6 are symmetrically and rotatably installed at the bottom of the support frame 1, and the surface of each first rotating shaft 6 is fixedly connected with a rear driving wheel 7.

[0073] A second rotating shaft 8 is rotatably connected in the frame body of the support frame 1, and the two first rotating shafts 6 are respectively in transmission connection with the second rotating shaft 8 through a chain transmission system.

[0074] A first bevel gear 9 is fixedly connected to the surface of the second rotating shaft 8.

[0075] A first motor 10 is fixedly installed in the frame body of the support frame 1, the output shaft end of the first motor 10 is fixedly connected with a second bevel gear 11, and the second bevel gear 11 is in meshing connection with the first bevel gear 9.

[0076] It should be noted that the chain transmission system is specifically the transmission of the chain and the sprocket in the prior art, and the surfaces of the first rotating shaft 6 and the second rotating shaft 8 are fixedly provided with sprockets, and the surfaces of the two sprockets jointly mesh with the chain.

[0077] In operation, the first motor 10 is started, the output shaft of the first motor 10 drives the second bevel gear 11 to rotate, and since the second bevel gear 11 is meshed with the first bevel gear 9 connected to the surface of the second rotating shaft 8, when the second bevel gear 11 rotates, the second rotating shaft 8 is synchronously driven to rotate under the transmission of the first bevel gear 9, and the first rotating shaft 6 is synchronously driven to rotate under the transmission of the chain transmission system, thereby driving the rear drive wheel 7 to rotate, and driving the carrot harvester to move by the assistance of the two universal wheels 5; the two universal wheels 5 and the two first rotating shafts 6 are symmetrically installed at the bottom of the support frame 1, so that the carrot harvester can move flexibly and run stably, the surface of the first rotating shaft 6 is fixedly connected with the rear drive wheel 7, and the first rotating shaft 6 is in transmission connection with the second rotating shaft 8 through the chain transmission system, so as to ensure the effective transmission of the driving force, the output shaft end of the first motor 10 is fixedly connected with the second bevel gear 11, and the second bevel gear 11 is meshed with the first bevel gear 9 fixed to the surface of the second rotating shaft 8, thereby realizing the transmission of the motor power and the rotation of the driving wheel.

[0078] The carrot harvester of the present application improves the operation stability and flexibility of the carrot harvester, reduces the risk of mechanical damage, and improves the harvesting efficiency.

[0079] As an embodiment of the present application, the clamping conveying mechanism comprises:

[0080] The two tensioning frames 12 are both fixedly inclined on the upper side of the support frame 1, and a plurality of tensioning adjusting members are equidistantly arranged on the opposite side of each of the two tensioning frames 12, one end of each of the two tensioning frames 12 is rotatably connected with a first belt pulley, and the other end is slidably inserted with an extension plate 13, the extension plate 13 is positioned with the tensioning frame 12 through bolts, and a plurality of first auxiliary wheels 14 are equidistantly rotatably connected on one side of the tensioning frame 12.

[0081] The two second belt pulleys are rotatably arranged at the ends of the extension plate 13 through the first support, and the surfaces of the first belt pulley and the second belt pulley jointly sleeve the conveying belt 15.

[0082] The two second motors 39 are both fixedly installed on the mounting seat 3, and the output shaft ends of the two second motors 39 are both fixedly connected with the two first belt pulleys.

[0083] When working, the tension adjusting members arranged and the sliding position of the extension plate 13 at the end of the tensioning frame 12 facilitate the adjustment of the tightness of the conveying belt 15 at the first and second pulleys, thereby facilitating the clamping of carrots of different thicknesses, and in the process of walking of the carrot harvester, the carrots acted on by the plow tool 4 will be clamped by the conveying belts 15 on the two tensioning frames 12, and under the operation of the second motor 39, the output shaft of the second motor 39 will drive the first pulley to rotate, thereby driving the conveying belt 15 to rotate, and the separate operation of the two second motors 39 facilitates the control of the rotation of the two conveying belts 15 in opposite directions, thereby facilitating the oblique upward conveying of the clamped carrots between the two conveying belts 15; the clamping and conveying mechanism of the present application can adjust the tightness of the conveying belt 15 by arranging a plurality of tension adjusting members, so as to adapt to carrots of different sizes and shapes, and meanwhile, the arrangement of a plurality of first auxiliary wheels 14 makes the conveying belt 15 more stable during conveying, avoiding the deviation or falling of the carrots during conveying. In addition, the design of the extension plate 13 enables the length of the conveying belt 15 to be adjusted as needed, further improving the applicability of the clamping and conveying mechanism.

[0084] The clamping and conveying mechanism of the present application solves the problem of deviation or falling of carrots during conveying in the prior art through reasonable structural design, and improves the stability and reliability of the carrot harvesting process. Compared with the prior art, the clamping and conveying mechanism of the present application has the advantages of simple structure, convenient adjustment, strong applicability, etc., and can better meet the needs of carrot harvesting.

[0085] As an embodiment of the present application, the clamping and conveying mechanism further comprises a second bracket, the second bracket is installed on the side wall of the extension plate 13 through bolts, and an adjusting wheel 16 is rotatably installed on the second bracket, and the rolling surface of the adjusting wheel 16 is in contact with the inner wall of the conveying belt 15.

[0086] When working, the second bracket in the clamping and conveying mechanism is fixed on the side wall of the extension plate 13 through bolts, so that the structure is more stable, the adjusting wheel 16 is installed on the second bracket, and the rolling surface thereof is in contact with the inner wall of the conveying belt 15, and through the action of the adjusting wheel 16, the tightness of the conveying belt 15 can be effectively maintained, preventing the loosening or deviation of the conveying belt 15 during work, and facilitating the adjustment of the clamping angle between the two conveying belts 15, thereby ensuring the stable conveying of the carrots on the conveying belt 15 and avoiding the falling or damage of the carrots due to the loosening of the conveying belt 15.

[0087] The present application solves the problem that the conveying belt 15 is easy to loosen in the prior art by adding a second support and an adjusting wheel 16 in the clamping conveying mechanism, improves the stability and conveying efficiency of the conveying belt 15, and compared with the prior art, the technical scheme of the present application can more effectively maintain the tensioning state of the conveying belt 15, ensures the stable conveying of the carrots on the conveying belt 15, reduces the falling and damage of the carrots, and thus improves the overall working efficiency and harvesting quality of the carrot harvester.

[0088] As an embodiment of the present application, the tensioning adjusting piece comprises:

[0089] The mounting plate is fixed at the top of the tensioning rack 12, the bottom of the mounting plate is rotationally connected with the rotating frame 17, the end of the rotating frame 17 is rotationally connected with the tensioning wheel 18, and the rolling surface of the tensioning wheel 18 is in contact with the inner ring wall of the conveying belt 15.

[0090] The spring 19 is fixedly connected at one end with the end of the rotating frame 17 and at the other end with the tensioning rack 12.

[0091] In work, the tensioning adjusting piece realizes the tensioning adjusting function of the conveying belt 15 through the cooperation of the mounting plate, the rotating frame 17, the tensioning wheel 18 and the spring 19, the mounting plate is fixed at the top of the tensioning rack 12, the rotating frame 17 is flexibly adjusted through the rotational connection at the bottom of the mounting plate, the rolling surface of the tensioning wheel 18 is in contact with the inner ring wall of the conveying belt 15, the tensioning state of the conveying belt 15 is ensured, one end of the spring 19 is fixedly connected with the end of the rotating frame 17, and the other end is fixedly connected with the tensioning rack 12, the tensioning effect is further enhanced through the elastic effect of the spring 19, and the conveying belt 15 that is tensioned is convenient for clamping carrots of different thicknesses and sizes.

[0092] Therefore, the present application solves the problem of inconvenient tensioning adjustment of the conveying belt 15 in the prior art by arranging the tensioning adjusting piece, and improves the stability and working efficiency of the conveying belt 15.

[0093] As an embodiment of the present application, the first support is fixedly provided with a straw folding device 20, and the end of the straw folding device 20 is arc-shaped and upward.

[0094] As an embodiment of the utility model, third support is fixedly installed at the bottom of the tensioning rack 12 at both side parts, the top of the two third supports is rotatably connected with third rotating shaft 21, the surface of the two third rotating shafts 21 is fixedly connected with gear one 22 and third bevel gear 23, the surface of the two gear one 22 is jointly meshed with toothed belt 24, the surface of toothed belt 24 is provided with sawtooth blade 25;

[0095] Second mounting bracket 26 is fixedly connected at the top of support frame 1, and two guide leaf cleaning covers 27 are symmetrically and fixedly connected at the top of second mounting bracket 26.

[0096] The sidewall of one of the third supports is rotatably connected with fourth rotating shaft 28, the surface of fourth rotating shaft 28 is fixedly connected with fourth bevel gear 29 meshing with third bevel gear 23, and fourth rotating shaft 28 and second rotating shaft 8 are synchronously and rotationally driven through a belt transmission system.

[0097] It should be noted that the belt transmission system is a transmission of a belt and a synchronous wheel in the prior art, the belt transmission system comprises two synchronous wheels, the two synchronous wheels are fixedly connected at the ends of fourth rotating shaft 28 and second rotating shaft 8, and the surfaces of the two synchronous wheels are jointly sleeved with a belt.

[0098] When working, the two clamping and conveying mechanisms with adjusted spacing are selected, the appropriate toothed belt 24 is sleeved on the surfaces of the two gear one 22, the fourth rotating shaft 28 is synchronously driven to rotate under the driving of the belt transmission system along with the rotation of the second rotating shaft 8, the third rotating shaft 21 is driven to rotate by the meshing relationship between the fourth bevel gear 29 on the surface of the fourth rotating shaft 28 and the third bevel gear 23 on the third rotating shaft 21, the gear one 22 on the rotating third rotating shaft 21 drives the toothed belt 24 to rotate, the toothed belt 24 on the surface of which is provided with sawtooth blade 25 cuts the carrot stems and leaves falling from the clamping and conveying mechanism, manual cutting of the stems and leaves by the staff is not needed, the carrot is conveniently and better collected, and the labor intensity of the staff is reduced, and since the stems and leaves are loose, the cut stems and leaves fall on the guide leaf cleaning cover 27 arranged in a slope, so that the stems and leaves slide off the harvester,

[0099] As an embodiment of the utility model, the soil screening mechanism comprises:

[0100] Two connecting plates 37 are fixedly connected at the bottom of the tensioning rack 12 at both side parts.

[0101] The cleaning brush 38 is rotatably connected between the two connecting plates 37, and when working, the cleaning brush 38 is arranged, and when the carrot is transmitted through the surface of the cleaning brush 38, the soil adhered to the surface of the carrot is swept down.

[0102] As an embodiment of the utility model, the collecting mechanism comprises:

[0103] The mounting frame 30 is fixedly installed on the top of the support frame 1, a plurality of first rollers 3001 are rotatably arranged on the inner wall of the mounting frame 30;

[0104] The two collecting baskets 31 are arranged on the top of the mounting frame 30, and the bottom of the collecting basket 31 is in contact with the rolling surface of the first roller 3001;

[0105] The sliding groove 3002 is arranged on the top of the mounting frame 30, and the sliding block 3003 is slidably connected in the sliding groove 3002;

[0106] The pushing block 32 is arranged above the mounting frame 30 and is used for pushing the two collecting baskets 31 to move, and the bottom of the pushing block 32 is fixedly connected with the sliding block 3003;

[0107] The pushing assembly is arranged on the frame body of the support frame 1 and is used for pushing the sliding block 3003 to slide along the inside of the sliding groove 3002.

[0108] In work, the carrot falling from the clamping and conveying mechanism falls into the collecting basket 31, and after the collecting basket 31 is full, the sliding block 3003 is pushed to slide along the inside of the sliding groove 3002 by the pushing assembly, the pushing block 32 is pushed on one side of the collecting basket 31 by the movement of the sliding block 3003, and the stressed collecting basket 31 moves on the surface of the plurality of first rollers 3001, so that the collecting basket 31 is conveniently replaced; the collecting mechanism of the application realizes efficient collection of the carrot through cooperation of the mounting frame 30, the first roller 3001, the collecting basket 31, the sliding groove 3002, the sliding block 3003, the pushing block 32 and the pushing assembly, the collecting basket 31 can smoothly contact and slide with the first roller 3001 through arrangement of the plurality of first rollers 3001 on the inner wall of the mounting frame 30, the pushing assembly further realizes automatic pushing of the collecting basket 31 through sliding of the sliding block 3003, and therefore the collection efficiency of the carrot is greatly improved.

[0109] The collecting mechanism of the application improves the automation degree and the collection efficiency of the carrot harvester through reasonable mechanical design. Compared with the prior art, the collecting mechanism of the application can effectively avoid mechanical damage of the carrot during the harvesting process, reduces manual intervention through the automatic collection process, reduces the labor intensity, and improves the work efficiency. Therefore, the collecting mechanism of the application has significant technical advantages in the mechanization process of the carrot harvesting.

[0110] As an embodiment of the utility model, the pushing assembly comprises a second driving motor 33, the second driving motor 33 is fixedly installed on the frame body of the support frame 1, the output shaft end of the second driving motor 33 is fixedly connected with a second threaded rod 34, and the second threaded rod 34 is screwed with the sliding block 3003 through a second threaded sleeve.

[0111] When working, the rotation of the second driving motor 33 can drive the second threaded rod 34 to rotate, thereby driving the sliding block 3003 to slide along the sliding groove 3002, and further driving the collection basket 31 to move.

[0112] As an embodiment of the utility model, the collection mechanism further comprises:

[0113] A second roller is fixedly connected to the top of the support frame 1.

[0114] Two guide frames 35 are fixedly connected to the surface of the second roller, and a plurality of rollers 36 are rotatably connected between the inner walls of each guide frame 35 for guiding the sliding of the collection basket 31.

[0115] When working, the introduction of the second roller and the guide frame 35 can effectively guide the sliding of the collection basket 31, making it convenient to remove the collection basket 31 from the mounting frame 30 for replacement, ensuring a more stable and efficient collection process.

[0116] As a preferred embodiment, the rollers 36 can be made of high-strength wear-resistant materials to prolong their service life and improve work efficiency, and the design of the guide frame 35 can be adjusted according to actual needs, such as increasing or decreasing the number of rollers 36, to adapt to collection baskets 31 of different sizes and weights.

[0117] The utility model works as follows:

[0118] The carrot harvester can solve the disadvantages of traditional manual harvesting and existing mechanical harvesting, specifically, the carrot harvester is pushed into the field, a large amount of data about the distance between carrots is collected in advance, the harvester is controlled through a controller, the controller can be connected with electrical elements in an external mode or installed on the support frame 1, the position of the two mounting seats 3 on the first mounting frame 2 is adjusted through the screw rod driving assembly, so that the distance between the two clamping conveying mechanisms is adjusted, the carrots are better collected, the soil screening mechanism is installed according to the adjusted distance, in the process that the driving wheel assembly drives the carrot harvester to walk, the ploughing cutter 4 is deeply inserted into the soil, the soil around the carrots is removed, so that the carrots can be stably clamped and conveyed by the clamping conveying mechanism, the mechanical damage caused by directly pulling up is avoided, when the clamping conveying mechanism clamps the carrots, the soil screening mechanism can effectively clean the soil on the surface of the carrots, manual cleaning is not needed, the harvesting efficiency is improved, with the continuous conveying of the clamping conveying mechanism to the carrots, the carrots finally fall into the collecting mechanism and are collected.

[0119] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A carrot harvester comprising a support frame (1) fitted with a drive wheel assembly, characterized in that, Also include: The first mounting bracket (2) is fixedly connected to the top of the support frame (1); Two mounting seats (3) are arranged on the first mounting bracket (2) by two screw rod driving assemblies respectively; Two clamping conveying mechanisms are arranged between the two mounting seats (3) and the support frame (1) respectively, for clamping and conveying carrots; Two ploughing cutters (4) are slidably connected to the frame of the support frame (1), and the two ploughing cutters (4) are fixedly connected to the two clamping conveying mechanisms through L-shaped frames respectively; A soil screening mechanism is arranged below the two clamping conveying mechanisms for cleaning the soil remaining on the surface of the carrot; A collecting mechanism is arranged on the top of the support frame (1) for collecting the carrots conveyed by the clamping conveying mechanism.

2. A carrot harvesting machine according to claim 1, characterised in that The driving wheel assembly comprises: Two universal wheels (5) are symmetrically installed on the bottom of the support frame (1); Two first rotating shafts (6) are symmetrically and rotatably installed on the bottom of the support frame (1), and a rear driving wheel (7) is fixedly connected to the surface of each first rotating shaft (6); A second rotating shaft (8) is rotatably connected to the frame of the support frame (1), and the two first rotating shafts (6) are drivingly connected to the second rotating shaft (8) through a chain transmission system; A first bevel gear (9) is fixedly connected to the surface of the second rotating shaft (8); A first motor (10) is fixedly installed in the frame of the support frame (1), an output shaft end of the first motor (10) is fixedly connected with a second bevel gear (11), and the second bevel gear (11) is in meshing connection with the first bevel gear (9).

3. A carrot harvesting machine according to claim 2, characterised in that The clamping conveying mechanism comprises: Two tensioning racks (12) are obliquely fixed above the support frame (1), a plurality of tensioning adjusting members are equidistantly arranged on the opposite side of each tensioning rack (12), a first pulley is rotatably connected to one end of each tensioning rack (12), an extension plate (13) is slidably inserted into the other end of each tensioning rack (12), the extension plate (13) and the tensioning rack (12) are positioned by bolts, and a plurality of first auxiliary wheels (14) are equidistantly rotatably connected to one side of the tensioning rack (12); Two second pulleys are rotatably arranged at the ends of the extension plate (13) through first supports, and the surfaces of the first pulley and the second pulley are jointly sleeved with a conveyor belt (15); Two second motors (39) are fixedly installed on the mounting seat (3), and the output shaft ends of the two second motors (39) are fixedly connected with the two first pulleys respectively.

4. A carrot harvesting machine according to claim 3, characterised in that The clamping conveying mechanism further comprises a second support, the second support is installed on the side wall of the extension plate (13) by bolts, an adjusting wheel (16) is rotatably installed on the second support, and the rolling surface of the adjusting wheel (16) is in contact with the inner ring wall of the conveyor belt (15).

5. A carrot harvesting machine according to claim 3, wherein The tensioning adjusting member comprises: An installation plate is fixedly connected to the top of the tensioning rack (12), a rotating rack (17) is rotatably connected to the bottom of the installation plate, a tensioning wheel (18) is rotatably connected to the end of the rotating rack (17), and the rolling surface of the tensioning wheel (18) is in contact with the inner ring wall of the conveyor belt (15). A spring (19) has one end fixedly connected with the end of the rotating frame (17) and the other end fixedly connected with the tensioning frame (12).

6. A carrot harvesting machine according to claim 3, wherein The first support is fixedly provided with a wheat supporting device (20) at the end, and the end of the wheat supporting device (20) is arc-shaped and upward. The bottom of the tensioning frame (12) on the two side edges is fixedly provided with a third support, the top of the two third supports is rotatably connected with a third rotating shaft (21), the surface of the two third rotating shafts (21) is fixedly connected with a gear one (22) and a third bevel gear (23), the surface of the two gear ones (22) is jointly meshed with a toothed belt (24), and the surface of the toothed belt (24) is provided with a sawtooth blade (25). A second mounting frame (26) is fixedly connected to the top of the support frame (1), and the top of the second mounting frame (26) is fixedly and symmetrically connected with two guide leaf cleaning covers (27). The sidewall of one of the third supports is rotatably connected with a fourth rotating shaft (28), the surface of the fourth rotating shaft (28) is fixedly connected with a fourth bevel gear (29) meshing with the third bevel gear (23), and the fourth rotating shaft (28) and the second rotating shaft (8) are synchronously and rotationally driven through a belt transmission system.

7. A carrot harvesting machine according to claim 3, wherein The soil screening mechanism comprises: Two connecting plates (37) are fixedly connected to the bottom of the tensioning frame (12) on the two side edges. A cleaning brush (38) is rotatably connected between the two connecting plates (37).

8. A carrot harvesting machine according to claim 6, characterised in that The collecting mechanism comprises: An installation frame (30) is fixedly installed on the top of the support frame (1), and a plurality of first rolling shafts (3001) are rotatably arranged on the inner wall of the installation frame (30). Two collection baskets (31) are arranged on the top of the installation frame (30), and the bottom of the collection basket (31) is in contact with the rolling surface of the first rolling shaft (3001). A sliding groove (3002) is formed in the top of the installation frame (30), and a sliding block (3003) is slidably connected in the sliding groove (3002). A pushing block (32) is arranged above the installation frame (30) and used for pushing the two collection baskets (31) to move, and the bottom of the pushing block (32) is fixedly connected with the sliding block (3003). A pushing assembly is arranged on the frame body of the support frame (1) and used for sliding the sliding block (3003) along the inside of the sliding groove (3002).

9. A carrot harvesting machine according to claim 8, characterised in that, The pushing assembly comprises a second driving motor (33) fixedly installed on the frame body of the support frame (1), a second threaded rod (34) fixedly connected with the output shaft end of the second driving motor (33), and a second threaded sleeve threadedly connected with the sliding block (3003).

10. A carrot harvesting machine according to claim 8, characterised in that, The collecting mechanism further comprises: A second rolling shaft is fixedly connected to the top of the support frame (1). Two guide frames (35) are fixedly connected to the surface of the second rolling shaft, and a plurality of rollers (36) are rotatably connected between the inner walls of each guide frame (35) and used for guiding the sliding of the collection basket (31).

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