Automatic radish harvester

Abstract

The present application relates to the technical field of agricultural harvesting equipment, and particularly relates to a radish automatic harvesting machine, which comprises a walking chassis device, a radish pulling device, a radish leaf cutting device, a cleaning protection device and a radish storage and unloading device installed on the walking chassis device; the radish pulling device is provided with a pulling transmission track arranged obliquely upward and downward, which is used for pulling radishes and transmitting the radishes to the radish leaf cutting device; the radish leaf cutting device is arranged on the transmission track of the pulling transmission track, and is used for cutting radish leaves to make the radishes fall; the cleaning protection device comprises a cleaning elastic brush, a plurality of self-rotating brush rollers and a cleaning driving part, the cleaning elastic brush is fixedly arranged on the surface of the brush rollers, the plurality of brush rollers are in transmission connection with the cleaning driving part, the plurality of brush rollers are oppositely arranged to form a buffer transmission track, the buffer transmission track is arranged on the track of the radish falling, and the outlet end of the buffer transmission track abuts against the radish storage and unloading device; and the radish storage and unloading device stores and unloads radishes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of agricultural harvesting equipment, in particular to a radish automatic harvester. BACKGROUND

[0002] Radish is an important vegetable crop, and its production process includes land preparation, sowing, field management and harvesting. Among them, harvesting is the most labor-intensive and time-consuming link. However, the harvesting operation is basically manual or semi-automatic mechanical harvesting, resulting in low harvesting efficiency, large labor demand and high labor intensity.

[0003] The existing radish harvester has the problems of poor radish harvesting quality and efficiency. Specifically, after the radish leaves are cut off, the radish will vertically drop into the fruit collecting box with a large drop, causing the radish to knock and affecting the harvesting quality. Moreover, the soil attached to the pulled radish cannot be effectively cleaned, which requires secondary manual intervention, affecting the radish harvesting efficiency.

[0004] Therefore, it has important value to research a radish harvester that can buffer and protect radish and clean soil during the process of radish falling into the fruit collecting box. SUMMARY

[0005] The purpose of the present application is to provide a radish automatic harvester, which increases the device of buffering and cleaning during the process of radish falling into the fruit collecting box, to solve the problems of radish knocking, soil and other factors affecting the harvesting quality and efficiency in the prior art.

[0006] In order to solve the above technical problems, the present application provides a radish automatic harvester, which comprises a walking chassis device, and a radish pulling device, a radish leaf cutting device, a cleaning and protecting device and a radish storage and unloading device installed on the walking chassis device. The radish pulling device is provided with an upwardly and downwardly inclined pulling transmission track, which is used for pulling radish and transmitting radish to the radish leaf cutting device. The radish leaf cutting device is arranged on the transmission track of the pulling transmission track, and is used for cutting radish leaves to make radish fall. The cleaning and protecting device comprises a cleaning elastic brush, a plurality of self-rotating brush rollers and a cleaning driving part. The cleaning elastic brush is fixedly arranged on the surface of the brush roller. The plurality of brush rollers are in transmission connection with the cleaning driving part. The plurality of brush rollers are oppositely arranged to form a buffer transmission track. The buffer transmission track is arranged on the track of radish falling. The outlet end of the buffer transmission track abuts against the radish storage and unloading device. The radish storage and unloading device is used for storing and unloading radish.

[0007] In one embodiment, the buffer transmission track is upwardly and downwardly inclined, and the inclined upper end of the buffer transmission track is arranged on the track of radish falling.

[0008] In one of the embodiments, the cleaning elastic brushes are arranged in a spiral shape on the brush rollers, and the adjacent cleaning elastic brushes on the brush rollers are oppositely arranged.

[0009] In one of the embodiments, the cleaning protection device further comprises a plurality of protection limiting sheets, which are arranged on both sides of the cutting part of the radish leaf cutting device, and are used to limit the swing of the radish when the radish leaf cutting device cuts the radish leaf.

[0010] In one of the embodiments, the radish pulling device comprises a plurality of transmission mechanisms, each of which comprises two transmission arms oppositely arranged and arranged in an up-down inclined manner. The transmission arm comprises a guide fixed arm body, a synchronous drive motor, a synchronous belt and a plurality of synchronous wheels. The guide fixed arm body is provided with a guide mounting groove, and the synchronous wheels are rotatably arranged in the guide mounting groove. The synchronous drive motor is in transmission connection with at least one of the synchronous wheels. The synchronous belt is arranged outside the plurality of synchronous wheels and is in transmission connection with the synchronous wheels. The transmission paths are formed between the adjacent synchronous belts.

[0011] In one of the embodiments, the radish pulling device further comprises a plurality of leaf gathering mechanisms, each of which comprises two leaf gathering sheets arranged on the adjacent guide fixed arm bodies. The leaf gathering gap is formed between the two leaf gathering sheets. The leaf gathering gap is arranged at the entrance of the pulling transmission path and is in communication with the pulling transmission path. The leaf gathering gap gradually narrows in the transmission direction of the pulling transmission path.

[0012] In one of the embodiments, the radish leaf cutting device comprises a cutting motor, a reciprocating transmission member, a first cutting blade and a second cutting blade. The first cutting blade is in transmission connection with the cutting motor through the reciprocating transmission member and is arranged on the conveying track of the pulling transmission path. The second cutting blade is in transmission connection with the cutting motor through the reciprocating transmission member and is arranged on the conveying track of the pulling transmission path. The first cutting blade and the second cutting blade are arranged in a stacked manner and oppositely arranged around the same axis to keep the cutting axis unchanged. The reciprocating transmission member is used to reciprocally move the first cutting blade in the direction away from or close to the second cutting blade, and reciprocally move the second cutting blade in the direction away from or close to the first cutting blade.

[0013] In one of the embodiments, the first cutting blade is provided with a first reciprocating groove, and the second cutting blade is provided with a second reciprocating groove; the reciprocating transmission member comprises a reciprocating transmission guide rail, a first reciprocating transmission block, a second reciprocating transmission block, a first rotary disc and a second rotary disc; the reciprocating transmission guide rail is fixedly installed on the cutting motor; the first reciprocating transmission block is slidably installed on the reciprocating transmission guide rail, and the first reciprocating transmission block is fixedly connected with the first cutting blade; the second reciprocating transmission block is slidably installed on the reciprocating transmission guide rail, and the second reciprocating transmission block is fixedly connected with the second cutting blade; the first rotary disc is in transmission connection with the cutting motor, the first rotary disc is fixedly connected with the second rotary disc through a first pin body, and the first pin body is arranged in the second reciprocating groove; the second rotary disc is fixedly provided with a second pin body, and the second pin body is arranged in the first reciprocating groove.

[0014] In one of the embodiments, the radish storage and unloading device comprises a plurality of foldable and unfoldable radish storage boxes, a storage and unloading transmission mechanism and a triggering mechanism; the radish storage boxes are arranged on the storage and unloading transmission mechanism, the storage and unloading transmission mechanism is installed on the walking chassis device, and the storage and unloading transmission mechanism is used for moving the radish storage boxes away from the radish pulling device; the triggering mechanism comprises a first triggering member and a second triggering member, the first triggering member is installed on the moving path of the radish storage box, and the second triggering member is arranged on the radish storage box; the first triggering member is used for triggering the second triggering member to start so that the radish storage box changes from a folded state to an unfolded state.

[0015] In one of the embodiments, the radish storage box comprises a bottom frame, a top frame, a pair of foldable and unfoldable plates, a pair of enclosing side plates and a bottom plate; the bottom plate is installed in the bottom frame, the bottom plate is provided with narrow through holes and wide through holes which are in communication with each other, the narrow through holes are used for clamping the second triggering member, and the wide through holes are used for allowing the second triggering member to pass through; a pair of the foldable and unfoldable plates and a pair of the enclosing side plates are hingedly connected between the bottom frame and the top frame; the foldable and unfoldable plate comprises a first foldable plate, a second foldable plate and an elastic hinge, the first foldable plate and the second foldable plate are rotatably connected through the elastic hinge; the enclosing side plate is provided with a second triggering member, and the second triggering member is used for being clamped in the narrow through hole when being folded.

[0016] The beneficial effects of the present application are as follows:

[0017] I. Since the cleaning elastic brush is fixedly arranged on the surface of the brush roller in the scheme, a plurality of brush rollers are arranged oppositely to form a buffer transmission track, the buffer transmission track is arranged on the trajectory of the radish falling, the outlet of the buffer transmission track abuts against the radish storage and unloading device, and the outlet of the buffer transmission track abuts against the radish storage and unloading device, so that when the radish is applied, after the radish is cut into radish leaves, the radish falls onto the buffer transmission track, the cleaning elastic brush on the buffer transmission track can play a buffering protection role on the radish, and when the radish moves into the radish storage and unloading device, it can slide down along the box, the drop is low, the radish is effectively prevented from being injured by falling from a high place, and the radish harvesting quality is improved.

[0018] II. Since the cleaning protection device includes a cleaning driving part and a plurality of self-rotating brush rollers, and the plurality of brush rollers are in transmission connection with the cleaning driving part, when the radish falls onto the buffer transmission track, the brush rollers rotate continuously, on the one hand, the cleaning elastic brush will continuously change the cleaning position, and most parts of the surface of the radish will be cleaned, on the other hand, the radish will also rotate multiple times, so that the same position can be repeatedly cleaned, and the radish harvesting efficiency is improved.

[0019] III. Since the radish leaf cutting device includes a first cutting blade and a second cutting blade that can reciprocally move to cut the radish leaves, which is equivalent to combining two slider-crank mechanisms, compared with the traditional cutting method, the cutting efficiency is greatly improved.

[0020] IV. Since the radish storage and unloading device includes a plurality of foldable radish storage boxes, a storage and unloading transmission mechanism, and a triggering mechanism, the storage and unloading transmission mechanism is installed on the walking chassis device, and the storage and unloading transmission mechanism is used to move the radish storage box out of the walking chassis device; the triggering mechanism includes a first trigger and a second trigger, the first trigger is installed on the moving path of the radish storage box, and the second trigger is arranged on the radish storage box; the first trigger is used to trigger the second trigger to start to change the radish storage box from the folded state to the unfolded state, so that when the radish storage box is unfolded and stored with radishes, the storage and unloading transmission mechanism drives the original radish storage box to move out of the walking chassis device, and then the radish storage box in the folded state placed on the storage and unloading transmission mechanism is moved to the original radish storage box position by the storage and unloading transmission mechanism, and changes from the folded state to the unfolded state during the movement, thereby completing the automatic replacement of the radish storage box without manual intervention.

[0021] V. Since the radish pulling device further includes a height adjusting mechanism, the height adjusting mechanism can adjust the height of the transmission mechanism to adjust the pulling height and effectively avoid the situation of clamping the radish root.

[0022] Six, the pulling process of the radish, the cutting process of the radish leaf, the buffer protection process of the radish, the cleaning process of the radish surface, the storage process of the radish and the replacement process of the radish box of the scheme all do not need manual intervention, completely realize the full automation of radish harvesting, compared with the prior art, the scheme has high automation, and completely solves the problems of poor radish collection quality and poor efficiency caused by manual intervention. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained according to these drawings without creative labor for those skilled in the art.

[0024] Figure 1 is the overall structure schematic diagram provided by the preferred embodiment of the present application Figure 1 ;

[0025] Figure 2 is the overall structure schematic diagram provided by the preferred embodiment of the present application Figure 2 ;

[0026] Figure 3 is the structure schematic diagram of radish pulling device provided by the preferred embodiment of the present application Figure 1 ;

[0027] Figure 4 is the structure schematic diagram of radish pulling device provided by the preferred embodiment of the present application Figure 2 ;

[0028] Figure 5 is the structure schematic diagram of radish leaf cutting device provided by the preferred embodiment of the present application Figure 1 ;

[0029] Figure 6 is the structure schematic diagram of radish leaf cutting device provided by the preferred embodiment of the present application Figure 2 ;

[0030] Figure 7 is the application schematic diagram of radish leaf cutting device provided by the preferred embodiment of the present application

[0031] Figure 8 is the structure schematic diagram of cleaning and protection device provided by the preferred embodiment of the present application

[0032] Figure 9 is the structure schematic diagram of storage and discharge transmission mechanism provided by the preferred embodiment of the present application

[0033] Figure 10 is the structure schematic diagram of radish storage box provided by the preferred embodiment of the present application

[0034] Figure 11 is a folding schematic view of the radish storage box structure provided by the preferred embodiment of the present application;

[0035] Figure 12 is a cross-sectional view of the radish storage box structure folding provided by the preferred embodiment of the present application.

[0036] The reference signs are as follows:

[0037] 1, walking chassis device;

[0038] 2, radish pulling device; 20, transmission mechanism; 200, pulling transmission track; 201, transmission arm; 2010, guide fixed arm body; 2011, synchronous drive motor; 2012, synchronous belt; 2013, synchronous wheel; 21, bunching mechanism; 210, bunching piece; 22, height adjusting mechanism; 220, height fixing seat; 221, height adjusting motor; 222, height adjusting screw; 223, adjusting sliding block; 224, color sensor;

[0039] 3, radish leaf cutting device; 30, cutting motor; 31, reciprocating transmission part; 310, reciprocating transmission guide rail; 311, first reciprocating transmission block; 312, second reciprocating transmission block; 313, first rotating disc; 314, second rotating disc; 315, first pin body; 316, second pin body; 32, first cutting blade; 320, first knife body; 321, first bending piece body; 3210, first bending piece segment; 3211, first straight piece segment; 3212, first narrowing piece segment; 3213, first leveling height block; 322, first reciprocating groove; 33, second cutting blade; 330, second knife body; 331, second bending piece body; 332, second reciprocating groove;

[0040] 4, cleaning protection device; 40, cleaning elastic brush; 41, brush roller; 410, buffer transmission track; 42, cleaning drive part; 43, protection limiting piece; 430, first limiting piece segment; 431, second limiting piece segment; 44, cleaning protection frame;

[0041] 5, radish storage and unloading device; 50, radish storage box; 500, bottom frame; 501, top frame; 502, foldable and unfoldable plate; 5020, first folding plate body; 5021, second folding plate body; 5022, elastic hinge; 503, enclosing side plate; 504, bottom plate; 5040, narrow through hole; 5041, wide through hole; 51, storage and unloading transmission mechanism; 510, storage and unloading transmission belt; 511, storage and unloading transmission motor; 512, storage and unloading transmission wheel; 52, triggering mechanism; 520, first triggering piece; 521, second triggering piece; 5210, triggering clamping strip; 5211, clamping hole clamping block; 5212, fixed block; 53, baffle; 54, transmission plate. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described in combination with the accompanying drawings in the embodiments of the present application.

[0043] In the prior art, the automatic radish harvesting machine has several problems. First, the radish is prone to bumping after cutting the leaves, which affects the harvesting quality. Second, the radish is not cleaned during the harvesting process, resulting in the radish still having soil attached, which requires manual intervention and affects the harvesting efficiency. Third, the existing radish leaf cutting efficiency is low. Fourth, the radish storage is not convenient, and manual intervention is required to replace the full box, which affects the harvesting efficiency. Fifth, the radish pulling position cannot be adjusted according to the growth of the radish, which causes damage to the radish and affects the harvesting quality.

[0044] To solve the above problems, first, the cleaning protection device is added, so that the radish is buffered by the cleaning protection device after cutting the leaves, avoiding the situation that the radish is prone to bumping after cutting. Second, the cleaning protection device can clean the surface of the radish, avoiding the situation that the radish has soil attached. Third, the radish leaf cutting device is improved, and the radish leaf cutting efficiency is improved through reciprocating cutting of the blade. Fourth, the radish storage box that can be folded and unfolded after being triggered is added, as well as the cooperating trigger piece, so that the box body can be replaced without manual intervention. Fifth, the height adjusting mechanism is added, and the height of the radish pulling is adjusted through the height adjusting mechanism.

[0045] Please refer to Figures 1 to 12The application provides a radish automatic harvester, which comprises a walking chassis device 1, a radish pulling device 2, a radish leaf cutting device 3, a cleaning protection device 4 and a radish storage and unloading device 5 which are arranged on the walking chassis device 1; the radish pulling device 2 is provided with a pulling transmission track 200 which is arranged in an up-down inclined mode and is used for pulling radishes and transmitting the radishes to the radish leaf cutting device 3; the radish leaf cutting device 3 is arranged on the transmission track of the pulling transmission track 200 and is used for cutting radish leaves so that the radishes fall; the cleaning protection device 4 comprises a cleaning elastic brush 40, a plurality of self-rotating brush rollers 41 and a cleaning driving part 42, the cleaning elastic brush 40 is fixedly arranged on the surface of the brush roller 41, the plurality of brush rollers 41 are in transmission connection with the cleaning driving part 42, the plurality of brush rollers 41 are oppositely arranged to form a buffer transmission track 410, the buffer transmission track 410 is arranged on the track of the radish falling, and the outlet end of the buffer transmission track 410 abuts against the radish storage and unloading device 5; the radish storage and unloading device 5 is used for storing and unloading radishes; in application, the pulling transmission track 200 of the radish pulling device 2 moves to be aligned with the radishes in the field, when the leaves of the radishes abut against the pulling transmission track 200, the radish leaves move with the pulling transmission track 200, the radishes are lifted and transmitted to the radish leaf cutting device 3, then the radish leaf cutting device 3 cuts the radish leaves and makes the radishes fall, the falling radishes are elastically received and buffered by the cleaning elastic brush 40 and the buffer transmission track 410, then the radishes are continuously rotated under the driving of the brush rollers 41, and finally the radishes are transmitted to the radish storage and unloading device 5 by the buffer transmission track 410 for storage.

[0046] After the radishes are cut, the radishes first fall on the buffer transmission track 410, the cleaning elastic brush 40 and the buffer transmission track 410 on the buffer transmission track 410 can lay the radishes which fall vertically, and then the laid radishes are transmitted to the radish storage and unloading device 5 through the buffer transmission track 410, the falling difference is low, compared with the radish harvester of the prior art, the radishes are directly cut and then fall into a box, the problem of accidental bruising caused by the large falling difference and the radishes falling from the vertical state is avoided, and the quality of the radish harvesting is improved; on the other hand, after the radishes fall on the buffer transmission track 410, the brush rollers 41 continuously rotate, the surface of the radishes can be cleaned, the radishes can be as clean as possible, manual secondary cleaning is avoided, and the radish harvesting efficiency is improved.

[0047] The radish pulling device 2 is described above, please refer to Figure 3 and Figure 4The radish pulling device 2 comprises a plurality of conveying mechanisms 20, a plurality of leaf gathering mechanisms 21 and a plurality of height adjusting mechanisms 22, the inlet end of the conveying mechanism 20 is provided with the leaf gathering mechanism 21, the bottom plate 504 of the conveying mechanism 20 is provided with the height adjusting mechanism 22, in application, the pulling conveying track 200 of the conveying mechanism 20 is moved above the radish, then the relative position between the pulling conveying track 200 and the radish is adjusted through the height adjusting mechanism 22 until the radish leaf is gathered and contacted in the leaf gathering mechanism 21, then the walking chassis device 1 drives the conveying mechanism 20 to move forward, so that the leaf is contacted with the pulling conveying track 200, the pulling conveying track 200 drives the leaf and the radish on the leaf to be conveyed backward along the track, compared with the prior art, the leaf gathering mechanism 21 can improve the radish pulling efficiency, the height adjusting mechanism 22 can adjust the relative position between the conveying mechanism 20 and the radish, so that the radish is pulled more accurately, and damage of the radish is avoided.

[0048] It should be pointed out that the number of the conveying mechanism 20, the leaf gathering mechanism 21 and the height adjusting mechanism 22 is one-to-one matching, in the embodiment, the number of the conveying mechanism 20, the plurality of leaf gathering mechanisms 21 and the plurality of height adjusting mechanisms 22 is preferably two, of course, the specific number can be selected by the person skilled in the art according to the actual situation.

[0049] For the conveying mechanism 20, as shown in Figure 3 and Figure 4 , the conveying mechanism 20 comprises two long strip-shaped conveying arms 201, the two conveying arms 201 are oppositely arranged, and the conveying arms 201 are arranged in an up-down inclined manner; each conveying arm 201 comprises a long strip-shaped guide fixed arm body 2010, a synchronous drive motor 2011, a synchronous belt 2012 and a plurality of synchronous wheels 2013; the guide fixed arm body 2010 is provided with a guide mounting groove, the guide mounting groove is arranged along the length direction of the guide fixed arm body 2010; the plurality of synchronous wheels 2013 are rotatably arranged in the guide mounting groove, the synchronous drive motor 2011 is in transmission connection with at least one synchronous wheel 2013; the synchronous belt 2012 is wound outside the plurality of synchronous wheels 2013, and the synchronous belt 2012 is in transmission connection with the synchronous wheel 2013; the adjacent synchronous belts 2012 form the pulling conveying track 200, in application, when the leaf or the radish is located in the pulling conveying track 200, the synchronous drive motor 2011 is started to drive the synchronous wheel 2013 to rotate, so as to drive the synchronous belt 2012 to transmit, the synchronous belt 2012 forming the pulling conveying track 200 can clamp the gathered leaf or radish, the radish is pulled out as a whole and conveyed backward, compared with the prior art, the radish pulling structure of the present scheme is simple, and the radish pulling can be completed without complex structure.

[0050] It should be noted that the up-and-down tilting arrangement of the transfer arm 201 refers to the up-and-down tilting arrangement of the transfer arm 201 relative to the moving plane of the moving chassis, and similarly, the up-and-down tilting arrangement of the pulling transfer track 200 refers to the up-and-down tilting arrangement of the pulling transfer track 200 relative to the moving plane of the moving chassis.

[0051] The guide fixed arm body 2010 is composed of an upper guide strip and a lower guide strip, as shown in Figure 3 and Figure 4 , a strip-shaped guide installation groove for installing the synchronous wheel 2013 is formed between the upper guide strip and the lower guide strip, and the upper guide strip and the lower guide strip are connected by a plug screw.

[0052] The synchronous drive motor 2011, the synchronous belt 2012 and the plurality of synchronous wheels 2013 are as shown in Figure 3 and Figure 4 , the synchronous wheel 2013 includes a driving wheel, an idler wheel and an external threaded bearing, the motor shaft of the synchronous drive motor 2011 is provided with the driving wheel, and the synchronous belt 2012 is wound around the driving wheel, the idler wheel and the external threaded bearing in a tensioned state, wherein the synchronous drive motor 2011 is preferably a DC speed reduction motor.

[0053] Further, in order to realize effective transfer of the cut-off fur, as shown in Figure 3 and Figure 4 , the transfer mechanism 20 further comprises a fur chute, the fur chute is arranged at the outlet of the pulling transfer track 200, the fur chute is fixedly connected with the end of the transfer arm 201, and the fur chute is arranged in an inclined downward manner so as to move the cut-off fur out.

[0054] For the fur gathering mechanism 21, as shown in Figure 3 and Figure 4 , the fur gathering mechanism 21 comprises two fur gathering pieces 210; the two fur gathering pieces 210 are respectively arranged on the adjacent two guide fixed arm bodies 2010, and a fur gathering gap is formed between the two fur gathering pieces 210; the fur gathering gap is arranged at the inlet of the pulling transfer track 200, the fur gathering gap is communicated with the pulling transfer track 200, the fur gathering gap gradually narrows along the transfer direction of the pulling transfer track 200, in application, the fur gathering gap is moved to the carrot, so that the carrot fur is located in the fur gathering gap, and with the movement of the fur gathering gap, the carrot fur is gathered along the gradually narrowing gap, the gathering effect is good, which is beneficial to the close degree of the subsequent friction between the synchronous belt 2012 and the carrot fur, improves the carrot pulling efficiency, and compared with the prior art, the gathering of the carrot fur can be completed by using a simple structure.

[0055] The fur gathering piece 210 is as shown in Figure 3 and Figure 4 , the fur gathering piece 210 is arranged on the guide fixed arm body 2010, and the fur gathering piece 210 is arranged in an inclined manner.As shown, the bunching piece 210 is fixed to the end of the upper and lower guide strips, the bunching piece 210 is a triangular structure, the front end of the bunching piece 210 is narrow, and the rear end of the bunching piece 210 is wide, so as to form a gradually narrowing bunching gap.

[0056] For the height adjusting mechanism 22, as shown in Figure 3 and Figure 4 shown, the height adjusting mechanism 22 includes a height fixing seat 220, a height adjusting motor 221, a height adjusting screw 222, and an adjusting sliding block 223; the height fixing seat 220 is fixedly connected with the walking chassis device 1, and the lower guide strip of the transmission mechanism 20 is slidably installed on the height fixing seat 220; the height adjusting motor 221 is installed on the height fixing seat 220, and the height adjusting motor 221 is in transmission connection with the height adjusting screw 222 through a shaft coupling; the height adjusting screw 222 is rotatably installed on the height fixing seat 220 through a screw conversion seat, and the height adjusting screw 222 is installed with the slidable adjusting sliding block 223; the adjusting sliding block 223 is fixedly connected with the upper guide strip of the transmission mechanism 20, and in application, the screw motor drives the screw to rotate, thereby driving the adjusting sliding block 223 to move up and down along the screw axial direction, and the movement of the adjusting sliding block 223 drives the transmission mechanism 20 to move up and down along the screw axial direction on the height fixing seat 220, compared with the prior art, the height adjusting mechanism 22 can realize the height adjustment of the transmission mechanism 20, thereby adjusting the pulling height.

[0057] Among them, the lower guide strip of the transmission mechanism 20 is slidably installed on the height fixing seat 220, which can be achieved by installing a fixed guide rail on the height fixing seat 220 and installing a sliding block on the lower guide strip, and the sliding connection of the transmission mechanism 20 and the height fixing seat 220 is realized through the guide rail sliding block.

[0058] Further, in order to better judge the pulling height, as shown in Figure 3 and Figure 4 shown, the height adjusting mechanism 22 further includes a color sensor 224, which is arranged on the bunching piece 210 of the bunching mechanism 21, and the sensing surface of the color sensor 224 is aligned with the forward direction of the walking chassis device 1, and in application, the color sensor 224 judges the pulling height by the color difference between the radish leaf and the radish root, and finally realizes the adjustment of the height after the judgment is completed.

[0059] For the above-mentioned radish leaf cutting device 3, please refer to Figures 5 to 7, the radish leaf cutting device 3 comprises a cutting motor 30, a reciprocating transmission member 31, a first cutting blade 32 and a second cutting blade 33, the first cutting blade 32 is in transmission connection with the cutting motor 30 through the reciprocating transmission member 31, and the first cutting blade 32 is arranged on the conveying track of the pulling transmission track 200; the second cutting blade 33 is in transmission connection with the cutting motor 30 through the reciprocating transmission member 31, and the second cutting blade 33 is arranged on the conveying track of the pulling transmission track 200; the first cutting blade 32 and the second cutting blade 33 are arranged in a stacked manner, and the first cutting blade 32 and the second cutting blade 33 are arranged in a relative manner around the same axis to keep the cutting axis unchanged; the reciprocating transmission member 31 is used for reciprocating the first cutting blade 32 in the direction away from or close to the second cutting blade 33, and reciprocating the second cutting blade 33 in the direction away from or close to the first cutting blade 32, and in application, as shown in Figure 7 , the reciprocating transmission member 31 is started by the cutting motor 30, and the reciprocating transmission member 31 drives the first cutting blade 32 and the second cutting blade 33 to reciprocate away from or close to each other, compared with the prior art, on the one hand, the radish leaf cutting device 3 of the scheme is arranged in an upper and lower layer, and the reciprocating transmission member 31 of the crank slider mechanism is used to realize the reciprocating movement between the blades, and the efficiency of cutting the radish leaves is greatly improved; on the other hand, the cutting axis remains unchanged, so that the two reciprocating blades can always cut the same radish position, thereby improving the cutting efficiency.

[0060] The first cutting blade 32, as shown in Figure 5 and Figure 6 , is in a bent structure, and comprises a first blade body 320 and a first bent blade body 321; the first blade body 320 is arranged on the edge of the first bent blade body 321, and the first blade body 320 is arranged in an interlaced manner with the second blade body 330; the first bent blade body 321 is provided with a first reciprocating groove, the axial direction of the first reciprocating groove is the same as the axial direction of the pulling transmission track 200, the first reciprocating groove penetrates through the side wall of the first cutting blade 32 adjacent to the leaf gathering mechanism 21, and the first reciprocating groove is used for installing the second pin body 316 for reciprocating movement.

[0061] Further, in order to improve the cutting efficiency, as shown in Figure 5 and Figure 6As shown, the first bent piece 321 includes a first bent segment 3210, a first straight segment 3211, and a first narrowed segment 3212 connected in sequence. A first blade 320 is provided on the inner wall of the first bent segment 3210 away from the first narrowed segment 3212, and a first blade 320 is also provided on the outer wall of the first narrowed segment 3212. The first blades 320 on the first bent segment 3210 and the first blades 320 on the first narrowed segment 3212 are arranged in parallel. When applied, each first blade 320 will intersect with the same second blade 330 at least twice in one reciprocating movement, further improving the cutting efficiency.

[0062] The first bending segment 3210 is provided with a first leveling height block 3213, which is arranged toward the cutting motor 30. The first cutter body 320 is located on the bottom surface of the first leveling height block 3213. The first bending segment 3210 is a V-shaped bend. The first narrowing segment 3212 narrows into a triangular shape along one of its endpoints.

[0063] The aforementioned second cutting blade 33, as Figure 5 and Figure 6 As shown, its overall structure is the same as that of the first cutting blade 32, that is, the second cutting blade 33 is also a bent structure. The second cutting blade 33 includes a second blade body 330 and a second bent blade body 331. The second blade body 330 is disposed on the edge of the second bent blade body 331, and the second blade body 330 and the first blade body 320 are arranged alternately. The second bent blade body 331 is provided with a second reciprocating groove 332. The axial direction of the second reciprocating groove 332 is the same as the axial direction of the pull-out transfer track 200. The second reciprocating groove 332 penetrates the side wall of the second cutting blade 33 adjacent to the tassel-gathering mechanism 21. The second reciprocating groove 332 is used to install the second pin 316 for its reciprocating movement.

[0064] Furthermore, in order to improve cutting efficiency, such as Figure 5 and Figure 6 As shown, the second bent piece 331 includes a second bent segment, a second straight segment, and a second narrowed segment connected in sequence. A second blade 330 is provided on the inner wall of the second bent segment away from the second narrowed segment, and a second blade 330 is also provided on the outer wall of the second narrowed segment. The second blades 330 on the second bent segment and the second blades 330 on the second narrowed segment are arranged in parallel. When applied, they are arranged in the same way as the first blade 320. Each second blade 330 will also intersect with the same first blade 320 at least twice, which greatly improves the cutting efficiency.

[0065] The second bending segment is also provided with a second leveling height block, which is arranged away from the cutting motor 30. The second cutter body 330 is located on the top surface of the leveling height block. The second bending segment is a V-shaped bend. The second narrowing segment narrows into a triangular shape along one of its endpoints.

[0066] The aforementioned reciprocating transmission component 31, such as Figure 5 and Figure 6 As shown, the reciprocating transmission component 31 includes a reciprocating transmission guide rail 310, a first reciprocating transmission block 311, a second reciprocating transmission block 312, a first turntable 313, and a second turntable 314. The first reciprocating transmission block 311 is slidably mounted on the reciprocating transmission guide rail 310. The axis of the reciprocating transmission guide rail 310 is perpendicular to the axis of the pull-and-transfer track 200, and the axis of the reciprocating transmission guide rail 310 is parallel to the surface of the pull-and-transfer track 200. The first reciprocating transmission block 311 is fixedly connected to the first cutting blade 32. The second reciprocating transmission block 312 is slidably mounted on the reciprocating transmission guide rail 310. 12 is fixedly connected to the second cutting blade 33; the first turntable 313 is drivenly connected to the cutting motor 30, and the first turntable 313 and the second turntable 314 are fixedly connected by a first pin 315, which is located in the second reciprocating groove 332; a second pin 316 is fixedly connected to the second turntable 314, and the axis of the second pin 316 and the axis of the first pin 315 are arranged relative to each other around the axis of the second turntable 314. The second pin 316 is located in the first reciprocating groove. During application, the cutting motor 30 drives the first turntable 313 to rotate, and the rotation of the first turntable 313 will drive the first pin 315 to rotate (e.g., Figure 7 (Rotating downwards), thereby causing the first pin 315 to move within the second reciprocating groove 332, which in turn drives the second reciprocating transmission block 312 to move. Simultaneously, the rotation of the first turntable 313 causes the second pin 316 on the second turntable to rotate (as shown in the image). Figure 7 (Rotate upwards), thereby causing the second pin 316 to move within the first reciprocating groove. As the turntable rotates, the first reciprocating transmission block 311 and the second reciprocating transmission block 312 will continuously reciprocate. Compared with the prior art, the ingenious aspect of the reciprocating transmission component 31 in this solution lies in combining the principle of two crank-slider mechanisms. Compared with the traditional cutting method, its efficiency is greatly improved.

[0067] The entire reciprocating cutting process is visible Figure 7 ,exist Figure 7 In section a, the first reciprocating transmission block 311 and the second reciprocating transmission block 312 are separated and not yet activated. The first cutting blade 32 and the second cutting blade 33 are arranged on opposite sides, and the cutting axis remains unchanged. Figure 7In b, the first reciprocating transmission block 311 and the second reciprocating transmission block 312 are separated from each other and start moving towards each other, the first cutting blade 32 and the second cutting blade 33 start to be deeply staggered, at this time the cutting axis remains unchanged; in Figure 7 In c, the first reciprocating transmission block 311 and the second reciprocating transmission block 312 contact each other, the first cutting blade 32 and the second cutting blade 33 are completely staggered, and the cutting axis remains unchanged.

[0068] For the cleaning protection device 4 described above, please refer to Figure 1 、 Figure 2 and Figure 8 The cleaning protection device 4 includes a cleaning elastic brush 40, a plurality of self-rotating brush rollers 41, a cleaning drive part 42, and a cleaning protection frame 44 for fixing on the walking chassis device 1. The cleaning protection frame 44 is installed with the cleaning drive part and the brush rollers 41 which are connected with each other. When in use, on the one hand, the radish can be well protected due to the buffering of the cleaning elastic brush 40 and the guidance of the buffering transmission track 410. On the other hand, the surface of the radish is continuously cleaned by the cleaning elastic brush 40 due to the continuous rotation of the brush rollers 41, so as to clean the soil on the surface of the radish.

[0069] It should be noted that the diameter of the buffering transmission track 410 should be smaller than the diameter of the radish so as to lift up the radish.

[0070] The above-mentioned brush rollers 41, as shown in Figure 8 , have the same self-rotation direction. When in use, the radish falls on the buffering transmission track 410 and can continuously roll over due to the same self-rotation direction of the brush rollers 41, so as to change the cleaning range. The soil on the radish is cleaned by the cleaning elastic brush 40 on the surface of the brush rollers 41, which reduces the subsequent processing steps and can greatly improve the work efficiency.

[0071] Further, in order to improve the buffering protection effect, as shown in Figure 8 , the plurality of brush rollers 41 are arranged in an up-down inclined manner, and the buffering transmission track 410 formed by the brush rollers 41 is also arranged in an up-down inclined manner. The inclined upper end of the buffering transmission track 410 is arranged on the track of the falling radish, and the inclined lower end of the buffering transmission track 410 is arranged at the entrance of the radish storage and unloading device 5. When in use, the cut radish falls into the inclined upper end of the buffering transmission track 410, and the originally straight-falling radish lies flat along the inclined direction of the buffering transmission track 410. Compared with the prior art,

[0072] On the one hand, the up-down inclined buffering transmission track 410 is closer to the radish cutting position, and the falling distance of the radish becomes smaller, so as to avoid the bruising caused by the high falling, and effectively improve the buffering protection effect. On the other hand, the radish can be smoothly dropped into the automatically unfolded storage box by relying on the height difference.

[0073] The cleaning elastic brush 40 is arranged in a spiral shape on the brush roller 41, and the cleaning elastic brushes 40 on adjacent brush rollers 41 are oppositely arranged. When in use, the cleaning elastic brush 40 can continuously change the cleaning position, and can clean most parts of the surface of the radish. Due to the opposite rotation directions of the spiral bristles, the radish is inclined relative to the axis, so that the elastic brush can clean the thin parts at the head and tail ends. Figure 8 The cleaning driving part 42 includes a cleaning driving motor, a worm, a worm shaft, and a plurality of bevel gears.

[0074] Figure 8 The output shaft of the cleaning driving motor is provided with the worm, the worm is in meshing transmission connection with the worm shaft, the worm and the worm shaft are arranged perpendicularly to each other, and the plurality of bevel gears are coaxially installed on the worm shaft and the end of the brush roller 41. When in use, the cleaning driving motor drives the worm, the worm shaft, and the bevel gears to drive the brush roller 41 to rotate.

[0075] In order to improve the protection effect on the radish, the swing of the radish is limited when the radish leaf is cut off. Figure 8 The cleaning protection device 4 further includes a plurality of protection limiting pieces 43, which are installed on the cleaning protection frame 44. The two sides of each buffer transmission rail 410 are provided with the protection limiting pieces 43, and the protection limiting pieces 43 are also arranged on both sides of the cutting part of the radish leaf cutting device 3. When the radish leaf cutting device 3 cuts off the radish leaf, the protection limiting pieces 43 can limit the swing of the radish, thereby effectively improving the protection effect on the radish.

[0076] It should be noted that the cutting part of the radish leaf cutting device 3 refers to the first cutting blade 32 and the second cutting blade 33.

[0077] Specifically, the protection limiting piece 43 includes a first limiting piece segment 430 and a second limiting piece segment 431 which are arranged in sequence. The length direction of the first limiting piece segment 430 is parallel to the axis direction of the pulling transmission rail 200, and the length direction of the second limiting piece segment 431 is parallel to the axis direction of the buffer transmission rail 410. When in use, the radish that has not entered the radish leaf cutting device 3 is limited to swing by the first limiting piece segment 430, and the radish that has entered the radish leaf cutting device 3 is limited to swing by the second limiting piece segment 431, thereby ensuring the effect of limiting the swing of the radish by the protection limiting piece 43.

[0078] The radish storage and unloading device 5 is described above. Please refer to Figures 9 to 12 ​, including a plurality of foldable and expandable radish storage boxes 50, a storage and unloading transmission mechanism 51 and a triggering mechanism 52; the radish storage box 50 is arranged on the storage and unloading transmission mechanism 51, the storage and unloading transmission mechanism 51 is installed on the walking chassis device 1, and the storage and unloading transmission mechanism 51 is used to move the radish storage box 50 away from the radish pulling device 2; the triggering mechanism 52 includes a first triggering piece 520 and a second triggering piece 521, the first triggering piece 520 is installed on the moving path of the radish storage box 50, and the second triggering piece 521 is arranged on the radish storage box 50; the first triggering piece 520 is used to trigger the second triggering piece 521 to start to change the radish storage box 50 from the folded state to the expanded state; in application, when the original expanded radish storage box 50 is full of radishes, the storage and unloading transmission mechanism 51 drives the original radish storage box 50 to move out of the walking chassis device 1, then the radish storage box 50 in the folded state placed on the storage and unloading transmission mechanism 51 in advance is moved to the position of the original radish storage box 50 by the storage and unloading transmission mechanism 51, and the radish storage box 50 is changed from the folded state to the expanded state in the moving process, so that the automatic replacement of the radish storage box 50 is completed without manual intervention.

[0079] It should be pointed out that the storage and unloading transmission mechanism 51 at least includes a first placement space and a second placement space, the first placement space and the second placement space are provided with the first triggering piece 520, the radish storage box 50 in the folded state is arranged in the first placement space, and the radish storage box 50 in the expanded state is arranged in the second placement space, so that the radish storage box 50 in the folded state can be changed to the radish storage box 50 in the expanded state by moving in application.

[0080] For the radish storage box 50, as shown in Figures 10 to 12 , the radish storage box 50 includes a bottom frame 500, a top frame 501, a pair of foldable and expandable plates 502, a pair of enclosing side plates 503 and a bottom plate 504; when the radish storage box 50 is in the expanded state, the bottom frame 500, the top frame 501, the pair of foldable and expandable plates 502, the pair of enclosing side plates 503 and the bottom plate 504 are enclosed to form the expanded radish storage box 50; when the radish storage box 50 is in the folded state, the bottom plate 504 is provided with the foldable and expandable plate 502 and the second triggering piece 521 between the enclosing side plate 503.

[0081] The above-mentioned bottom plate 504, as shown in Figures 10 to 12 , is installed in the bottom frame 500, and the bottom plate 504 is provided with a narrow through hole 5040 and a wide through hole 5041 which are in communication with each other, the narrow through hole 5040 is used for clamping the second triggering piece 521, and the wide through hole 5041 is used for allowing the second triggering piece 521 to pass through.

[0082] The above-mentioned foldable and expandable plate 502, as shown in Figures 10 to 12As shown, the foldable and expandable plate 502 is connected with the bottom frame 500 and the top frame 501 through flexible hinges, and when the radish storage box 50 is in the folded state, the foldable and expandable plate 502 is folded and compressed between the bottom plate 504 and the enclosing side plate 503. The foldable and expandable plate 502 comprises a first foldable plate body 5020, a second foldable plate body 5021 and an elastic hinge 5022, and the first foldable plate body 5020 is rotatably connected with the second foldable plate body 5021 through the elastic hinge 5022.

[0083] As shown, the enclosing side plate 503 is connected with the bottom frame 500 and the top frame 501 through flexible hinges, and the enclosing side plate 503 is provided with a second trigger 521. Figures 10 to 12

[0084] As shown, the second trigger 521 comprises a trigger clamping strip 5210, a clamping hole clamping block 5211 and a fixed block 5212. The fixed block 5212 is fixed on the enclosing side plate 503, the trigger clamping strip 5210 is rotatably installed on the fixed block 5212, one end of the trigger clamping strip 5210 is fixedly connected with the clamping hole clamping block 5211, the diameter of the clamping hole clamping block 5211 is greater than the diameter of the narrow through hole 5040, and the diameter of the clamping hole clamping block 5211 is less than the diameter of the wide through hole 5041. When the radish storage box 50 is in the folding stage, the second trigger 521 is arranged between the bottom plate 504 and the enclosing side plate 503, and the clamping hole clamping block 5211 is clamped in the narrow through hole 5040. When in use, when an external force pushes the trigger clamping strip 5210, the trigger clamping strip 5210 rotates around the fixed block 5212, and the clamping hole clamping block 5211 is removed from the narrow through hole 5040, thereby completing the expansion trigger of the radish storage box 50. Figures 10 to 12

[0085] In summary, when the radish storage box 50 is folded, when an external force pushes the trigger clamping strip 5210, the trigger clamping strip 5210 drives the clamping hole clamping block 5211 to rotate, and the clamping hole clamping block 5211 is rotated from the narrow through hole 5040 to the wide through hole 5041. Due to the fact that the diameter of the wide through hole 5041 is greater than that of the clamping hole clamping block 5211, and under the elastic action of the elastic hinge 5022, the foldable and expandable plate 502 changes from the folded state to the expanded state, so that the enclosing side plate 503 originally on the foldable and expandable plate 502 is removed. Since the enclosing side plate 503, the foldable and expandable plate 502 and the bottom plate 504 are connected with the top frame 501 and the bottom frame 500 through flexible hinges, as long as the foldable and expandable plate 502 is expanded, each plate body will be restored to the expanded state. Of course, when the radish storage box 50 needs to be kept folded, it is only necessary to ensure that the clamping hole clamping block 5211 is clamped in the narrow through hole 5040, so that the radish storage box 50 will not be automatically expanded.

[0086] For the first trigger 520,​​Figure 9 As shown, the first trigger 520 is a protrusion, the protrusion is arranged in the outward protruding direction towards the radish storage box 50, the protrusion is arranged on the moving track of the second trigger 521, in application, the protrusion is fixed, the folded radish storage box 50 is moved by the storage and unloading transmission mechanism 51, when the second trigger 521 abuts against the first trigger 520, the first trigger 520 can give the first trigger 520 an external force for triggering, so as to realize the unfolding triggering of the radish storage box 50.

[0087] For the storage and unloading transmission mechanism 51, as shown, Figure 9 The storage and unloading transmission mechanism 51 includes a pair of storage and unloading transmission belts 510, a storage and unloading transmission motor 511 and a plurality of storage and unloading transmission wheels 512, the storage and unloading transmission motor 511 is installed on the walking chassis device 1, the storage and unloading transmission motor 511 is in transmission connection with at least one storage and unloading transmission wheel 512, the plurality of storage and unloading transmission wheels 512 are arranged on both sides of the walking chassis device 1 respectively, and the two storage and unloading transmission belts 510 are installed on the outside of the storage and unloading transmission wheels 512 on both sides in tension, in application, the radish storage box 50 is erected on the two storage and unloading transmission belts 510, and the radish storage box 50 is moved by the storage and unloading transmission belt 510.

[0088] Further, in order to more accurately start the storage and unloading transmission mechanism 51, as shown, Figure 9 The radish storage and unloading device 5 further includes an infrared photoelectric sensor, the infrared photoelectric sensor is aimed at the radish storage box 50, when the infrared photoelectric sensor detects that the radish is full, the storage and unloading transmission mechanism 51 is started, the full radish storage box 50 is moved out of the second placing space, and the empty radish storage box 50 in the folded state is moved from the first placing space to the second placing space.

[0089] In order to store a plurality of radish storage boxes 50 in the folded state, as shown, Figure 9 The radish storage and unloading device 5 further includes a baffle 53, the baffle 53 is fixedly installed on the walking chassis device 1, the baffle 53 is spaced apart from the storage and unloading transmission belt 510 by a box passing gap, the spacing of the box passing gap is greater than the height of the radish storage box 50 in the folded state and less than the height of the radish storage box 50 in the folded state, in application, only one radish storage box 50 in the folded state can be moved out each time, and the remaining radish storage boxes 50 in the folded state can only continue to be located in the original position due to the blocking of the baffle 53.

[0090] In order to make the box fall smoothly on the field ridge, as shown, Figure 9 The radish storage and unloading device 5 further includes a transmission plate 54, the transmission plate 54 is arranged in an upward and downward inclined manner, in application, the radish storage box 50 can fall smoothly on the field ridge along the inclined transmission plate 54.

[0091] Regarding the walking chassis device 1, as shown,Figure 1 As shown, the walking chassis device 1 is a vehicle that can move forward, backward, left and right, which can be manually driven or fully automatically controlled, and the person skilled in the art can select according to the actual needs.

[0092] In summary, the pulling process of the radish, the cutting process of the radish leaf, the buffering protection process of the radish, the cleaning process of the radish surface, the storage process of the radish and the replacement process of the radish box all do not need manual intervention, and the full automation of radish harvesting is completely realized. Compared with the prior art, the present application has high automation, and completely solves the problems of poor radish collection quality and low efficiency caused by manual intervention.

[0093] From the above, the basic structure and principle of the present application are known, and a specific working process is given below:

[0094] The walking chassis device 1 advances, the leaf gathering member of the radish pulling device 2 first gathers the radish leaf, the color sensor 224 judges the radish height, and then adjusts the pulling height through the height adjusting mechanism 22. The pulling transmission track 200 composed of the synchronous belt 2012 clamps the radish leaf, the radish leaf moves upward along the movement direction of the synchronous belt 2012, moves to the radish leaf cutting device 3, and then cuts the radish leaf. After cutting, the radish falls into the buffering transmission track 410, the radish leaf continues to be transmitted to the leaf chute, and then falls into the radish field. The radish rotates in the buffering transmission track 410 to preliminarily clean the soil clumps. After cleaning, the radish falls into the storage box. When the storage box is full of radish, the infrared photoelectric sensor receives the signal, the transmission mechanism transports the unfolded storage box to the vehicle, and at the same time, the folded storage box is transported to the unfolded area.

[0095] The above is the preferred embodiment of the present application. It should be noted that for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which are also considered within the scope of protection of the present application.

Claims

1. A carrot automatic harvester, characterized in that, comprising a walking chassis device, and a carrot pulling device, a carrot leaf cutting device, a cleaning protection device and a carrot storage and unloading device mounted on the walking chassis device; the carrot pulling device is provided with an up-and-down inclined pulling transmission track for pulling and transmitting carrots to the carrot leaf cutting device; the carrot leaf cutting device is arranged on the transmission track of the pulling transmission track and is used for cutting off the carrot leaves to make the carrots fall; the carrot leaf cutting device comprises a cutting motor, a reciprocating transmission member, a first cutting blade and a second cutting blade; the first cutting blade is in transmission connection with the cutting motor through the reciprocating transmission member and is arranged on the transmission track of the pulling transmission track; the second cutting blade is in transmission connection with the cutting motor through the reciprocating transmission member and is arranged on the transmission track of the pulling transmission track; the first cutting blade and the second cutting blade are arranged in a stacked manner and are oppositely arranged around the same axis to keep the cutting axis unchanged; the reciprocating transmission member is used for reciprocating the first cutting blade in the direction away from or close to the second cutting blade and reciprocating the second cutting blade in the direction away from or close to the first cutting blade; the first cutting blade comprises a first blade body and a first bent blade body, and the first blade body is arranged on the edge of the first bent blade body; the second cutting blade comprises a second blade body and a second bent blade body, and the second blade body is arranged on the edge of the second bent blade body and is staggered with the first blade body; the cleaning protection device comprises a cleaning elastic brush, a plurality of self-rotating brush rollers and a cleaning driving part, the cleaning elastic brush is fixedly arranged on the surface of the brush rollers, the brush rollers are in transmission connection with the cleaning driving part, the brush rollers are oppositely arranged to form a buffer transmission track, the buffer transmission track is arranged on the track of the falling carrots, and the outlet end of the buffer transmission track abuts against the carrot storage and unloading device; the carrot storage and unloading device is used for storing and unloading carrots.

2. The carrot automatic harvester according to claim 1, characterized in that, the buffer transmission track is arranged in an up-and-down inclined manner, and the inclined upper end of the buffer transmission track is arranged on the track of the falling carrots.

3. The carrot automatic harvester according to claim 1, characterized in that, the cleaning elastic brush is arranged in a spiral manner on the brush rollers, and the cleaning elastic brushes on adjacent brush rollers are oppositely arranged; the self-rotation directions of the brush rollers are the same.

4. The carrot automatic harvester according to claim 1, characterized in that, the cleaning protection device further comprises a plurality of protection limiting pieces; the protection limiting pieces are arranged on both sides of the cutting part of the carrot leaf cutting device, and are used for limiting the swing of the carrots when the carrot leaf cutting device cuts off the carrot leaves.

5. The carrot automatic harvester according to claim 1, characterized in that, the carrot pulling device comprises a plurality of transmission mechanisms; ​ The transmission mechanism comprises two transmission arms arranged oppositely, and the transmission arms are arranged obliquely upward and downward; The transmission arm comprises a guide fixed arm body, a synchronous drive motor, a synchronous belt and a plurality of synchronous wheels; The guide fixed arm body is provided with a guide mounting groove; A plurality of synchronous wheels are rotatably arranged in the guide mounting groove, and the synchronous drive motor is in transmission connection with at least one synchronous wheel; The synchronous belt is arranged outside the plurality of synchronous wheels, and the synchronous belt is in transmission connection with the synchronous wheels; The adjacent synchronous belts form the pulling transmission track.

6. The automatic radish harvester according to claim 5, wherein the radish pulling device further comprises a plurality of furled mechanisms; The furled mechanism comprises two furled pieces; Two furled pieces are arranged on two adjacent guide fixed arm bodies respectively, and a furled gap is formed between the two furled pieces; The furled gap is arranged at the entrance of the pulling transmission track, the furled gap is in communication with the pulling transmission track, and the furled gap gradually narrows in the transmission direction of the pulling transmission track.

7. The automatic radish harvester according to claim 1, wherein a first reciprocating groove is formed on the first cutting blade, and a second reciprocating groove is formed on the second cutting blade; The reciprocating transmission member comprises a reciprocating transmission guide rail, a first reciprocating transmission block, a second reciprocating transmission block, a first rotating disc and a second rotating disc; The first reciprocating transmission block is slidably mounted on the reciprocating transmission guide rail, and the first reciprocating transmission block is fixedly connected with the first cutting blade; The second reciprocating transmission block is slidably mounted on the reciprocating transmission guide rail, and the second reciprocating transmission block is fixedly connected with the second cutting blade; The first rotating disc is in transmission connection with the cutting motor, the first rotating disc and the second rotating disc are fixedly connected through a first pin, and the first pin is arranged in the second reciprocating groove; The second rotating disc is fixedly connected with a second pin, the axis of the second pin is arranged oppositely around the axis of the first pin, and the second pin is arranged in the first reciprocating groove.

8. The automatic radish harvester according to claim 1, wherein the radish storage and unloading device comprises a plurality of foldable and unfoldable radish storage boxes, a storage and unloading transmission mechanism and a triggering mechanism; The radish storage box is arranged on the storage and unloading transmission mechanism; The storage and unloading transmission mechanism is mounted on the walking chassis device, and is used for moving the radish storage box away from the radish pulling device; The triggering mechanism comprises a first triggering member and a second triggering member, the first triggering member is mounted on the moving path of the radish storage box, the second triggering member is arranged on the radish storage box, and the first triggering member is used to trigger the second triggering member to start so that the radish storage box changes from the folded state to the unfolded state.

9. The automatic radish harvester according to claim 8, wherein the radish storage box comprises a bottom frame, a top frame, a pair of foldable and unfoldable plates, a pair of enclosing side plates and a bottom plate; ​ ​ ​ ​ The bottom plate is installed in the bottom frame, and narrow through holes and wide through holes that are communicated with each other are arranged on the bottom plate, the narrow through holes are used for clamping the second trigger, and the wide through holes are used for allowing the second trigger to pass through; A pair of the foldable and unfoldable plates and a pair of the enclosing side plates are hingedly connected between the bottom frame and the top frame; The foldable and unfoldable plate comprises a first foldable plate, a second foldable plate and an elastic hinge, and the first foldable plate and the second foldable plate are rotatably connected through the elastic hinge; The enclosing side plate is provided with a second trigger, and the second trigger is used for being clamped in the narrow through hole when being folded.

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