CN113711754A - Potato combine harvester - Google Patents

Abstract

The invention discloses a potato combine harvester, and relates to the field of agricultural equipment. The invention comprises a soil crushing and stem cutting device, a rotary lifting and screening device and a stem membrane cleaning device; the discharge end of the soil crushing and stem cutting device is arranged above the feed end of the rotary lifting and screening device, and the feed end of the stem membrane cleaning device is arranged at the vertical lifting and connecting section of the rotary lifting and screening device; so as to realize the purposes of digging the potatoes, separating the soil and the potatoes, separating the stalks, weeds and mulching films, conveying the potato blocks and grading by the harvester at one time.

Description

Potato combine harvester

Technical Field

The invention relates to the field of agricultural equipment, in particular to a potato combine harvester.

Background

The potato is the fourth crop of China after wheat, rice and corn, is mainly distributed in inner Mongolia, Gansu, Qinghai, Ningxia and other provinces, and produces 6000 million tons of fresh potato annually. The potato planting area of China is increased year by year at the growth rate of 10 ten thousand hm 2/year, and the yield is at the 1 st position in the world. With the increasing demand of the market for potatoes, some big foreign companies have engaged in potato production and processing business in China, and some domestic production enterprises have joined the field, so that the potato production starts to advance to the scale and standardization of production bases.

However, a cruel reality is that the potato harvesting operation which accounts for more than 70% of the total production labor still stays at the semi-mechanized harvesting semi-manual picking stage so far, the scale production of the potatoes is seriously influenced, and the potato harvesting operation far cannot meet the market demand.

With growing planting area and yield, potato harvesting has become an important research topic. The potato harvester in the current stage of China mainly adopts simple excavation and manual picking, and the domestic potato harvesting depends on the problems of low efficiency, high labor intensity and the like of a manual or small excavator, so that the capacity of high-efficiency output of the potato industry is severely limited.

Disclosure of Invention

The invention aims to provide a potato combine harvester to achieve the aims of digging potatoes, separating soil and potatoes, separating stalks, weeds and mulching films, conveying potato blocks and grading by the aid of the harvester at one time.

In order to achieve the purpose, the invention adopts the following technical means:

a potato combine harvester comprises a soil crushing and stem cutting device, a rotary lifting and screening device and a stem membrane cleaning device;

the discharge end setting of garrulous soil stalk-cutting device is in the feed end top that the gyration promoted screening plant, stalk membrane cleaning device's feed end setting is in the vertical promotion of gyration promotion screening plant links up the section.

Preferably, the soil crushing and stem cutting device comprises a pair of first supporting plates, a first transmission belt is arranged between the two first supporting plates, an upper charging tray which inclines downwards is mounted at the end part of the first supporting plate, an extending frame is mounted at one end, facing the upper charging tray, of the first supporting plate, the end part of the extending frame extends downwards and is rotatably mounted with cutting pieces, a press roller is arranged between the two cutting pieces, and the press roller is connected with the inner side wall of the first supporting plate through an inclined press rod which is rotatably connected with the press roller; first transmission band is including rotating to be installed first power roller and the first driving roller of first backup pad side, first power roller with first driving roller is connected through first track transmission, two install between the first track with the lateral wall vertically of first backup pad first accepts the fence, adjacent two separate the setting between the first fence of accepting.

Further, an eccentric vibration device is mounted on the inner side surface of the first support plate, and a beating end of the eccentric vibration device is intermittently contacted with the surface of the first crawler belt; eccentric vibrating device is including installing the first rotation motor of first backup pad side, the rotation end level of first rotation motor sets up between the upper band of first track and the lower band, the rotation end lateral wall of first rotation motor is installed rather than axis vertically and is rotated the strip, rotate the strip with the relative one end of rotation end of first rotation motor is installed and is hit the piece, hit the piece with first track contact.

Furthermore, the feeding disc comprises a plurality of mutually parallel plough shovel type slats which are arranged side by side, and a gap for soil falling is arranged between every two adjacent plough shovel type slats;

meanwhile, the extension frame comprises a horizontal rod connected with the end face of the first supporting plate, one end of the horizontal rod, which is back to the first supporting plate, is connected with a downwardly inclined joint rod, a limiting groove is formed in the joint rod, two ends of the joint rod penetrate through the limiting groove in the vertical direction, the cutting blade is rotatably arranged in the limiting groove, and the cutting blade is rotatably connected with the inner wall of the limiting groove;

the inner side of the bottom surface of the limiting groove is in sliding contact with the outer wall of the cutting piece.

Furthermore, gyration promotion screening plant is including the promotion conveyer belt that the slope set up, the discharge end below of promotion conveyer belt is provided with the horizontal transport and crosses the screen area, the discharge end that the horizontal transport crossed the screen area stretches into in the gyration hoisting device, the top blanking end of gyration hoisting device is provided with the screening area, the screening case is installed to the below in screening area, there are a plurality of branch material chambeies through the baffle separation in the screening case, the lateral wall of screening case be provided with respectively with every divide the discharge passage of material chamber intercommunication.

Furthermore, the horizontal conveying and screening belt comprises a pair of horizontal limiting plates connected with the bottom end of the outer wall of the lifting conveying belt, and a vibrating screen power roller and a vibrating screen transmission roller which are arranged on the side wall of each horizontal limiting plate, wherein the vibrating screen power roller and the vibrating screen transmission roller are in transmission connection through a pair of vibrating screen tracks, a plurality of parallel conveying fences are arranged between the two vibrating screen tracks, one surface, provided with the vibrating screen tracks, of each horizontal limiting plate is provided with an eccentric striking device, and the striking end of each eccentric striking device faces towards the vibrating screen tracks;

meanwhile, the rotary lifting device comprises a pair of surrounding plates which are vertical and are arranged around the horizontal conveying screening belt, the four corners of each of the two surrounding plates are provided with surrounding power rollers, the surrounding power rollers on each surrounding plate are in transmission connection through surrounding tracks, a conveying fence is arranged between the two surrounding tracks, one surface of each conveying fence, facing the horizontal conveying screening belt, is provided with a material baffle plate, the top end of the material baffle plate inclines towards the moving direction of the surrounding tracks, and the feeding side of the screening belt is arranged below the surrounding tracks on the top surface;

the screening belt is arranged into a transportation section in the rotary lifting device and a screening section extending out of the rotary lifting device, the screening belt comprises a pair of screening plates parallel to the horizontal conveying screening belt, conveying rollers are installed between the two screening plates, the end portions of the conveying rollers are in transmission connection through transmission tracks, the conveying rollers at the end portions are in transmission connection with the rotating end of a power motor, the intervals between the conveying rollers at the transportation section are the same, the intervals between the conveying rollers at the screening section are gradually increased along the direction far away from the transportation section, the screening box is communicated below the screening section, and each baffle is respectively arranged below the conveying rollers of the screening section.

Furthermore, the stalk membrane cleaning device comprises a screening frame connected with the rotary lifting screening device, rubber scraping columns are uniformly arranged on transmission fences of the screening frame, two rows of rubber scraping columns are arranged on each transmission fence, and the two rows of rubber scraping columns are arranged at an angle; the angle formed by the two rubber scraping columns on each transmission fence is 40 degrees.

Furthermore, the screening frame comprises a pair of screening support plates connected with the machine body, a screening rotating roller and a screening transmission roller are rotatably mounted on the inner side surfaces of the screening support plates, the screening rotating roller and the screening transmission roller are in transmission connection through screening crawler belts, the transmission fences are fixedly mounted between the two screening crawler belts, two adjacent transmission fences are arranged in parallel at intervals, and the extending direction of the transmission fences is parallel to the axial direction of the screening transmission roller;

further, the below of sieve frame is provided with the case that gathers materials, the top surface of charging box respectively with two the bottom surface of sieve material backup pad is connected, the top surface of charging box link up cut with adjacent two space intercommunication between the transmission fence, the discharge end setting of sieve frame is in the top of charging box, the bottom surface of case that gathers materials is provided with a plurality of parallel to each other and extending direction with the parallel bin outlet of transmission fence transmission direction.

Furthermore, the bottom surface of the material collecting box between two adjacent discharge ports is provided with a material guide block parallel to the discharge ports, and the top surfaces of the material guide blocks are obliquely arranged and respectively inclined towards the discharge ports;

the bottom surface of the material collecting box is provided with a plowing strip for plowing, the plowing strip is arranged in the extending direction of the discharge port, and the plowing strip is arranged at the front step end of the material collecting box moving along with the machine body.

In the using process, the invention has the following beneficial effects:

at first the potato material is under the effect of garrulous soil stem cutting device, be dug out in the follow soil, then get into the gyration through garrulous soil stem cutting device and promote screening plant, wherein, the potato material carries out soil thing separation back once more in the gyration promotion screening plant, clear up in getting into stem membrane cleaning device, the material after stem membrane and potato separation has been realized, the stem membrane is discharged from stem membrane cleaning device's afterbody, the potato falls to the gyration promotion part among the gyration promotion screening plant from stem membrane cleaning device's low side, thereby again under the effect of gyration lifting device, the potato rebound, fall into the screening part of gyration lifting device from the top whereabouts of gyration lifting device, thereby sieve. Therefore, the harvester can finish the aims of digging, soil and potato separation, stalk, weed and mulching film separation, potato block conveying and grading of potatoes in one step.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

FIG. 2 is a schematic side view of the present invention.

FIG. 3 is a schematic structural view of the soil crushing and stem cutting device of the present invention.

Fig. 4 is a schematic top view of fig. 3.

Fig. 5 is a side view of the structure of fig. 3.

Fig. 6 is a schematic view of the cross-sectional structure a-a in fig. 5.

Fig. 7 is a schematic structural view of a rotary lifting screening device of the present invention.

Fig. 8 is a side view of the structure of fig. 7.

Fig. 9 is a schematic diagram of the structure of the section B-B in the bitmap 8.

Fig. 10 is a side sectional view of fig. 7.

FIG. 11 is a schematic structural diagram of the stem membrane cleaning device of the present invention.

Fig. 12 is a schematic top view of fig. 11.

Fig. 13 is a side view of the structure of fig. 11.

Fig. 14 is a schematic view of the cross-sectional structure C-C of fig. 13.

Fig. 15 is a schematic side sectional view of the bitmap 11.

Wherein, 1-soil crushing and stem cutting device, 101-first supporting plate, 102-first transmission belt, 1021-first power roller, 1022-first transmission roller, 1023-first crawler, 1024-first receiving fence, 103-feeding tray, 104-extending frame, 105-cutting sheet, 106-pressing roller, 107-pressing rod, 108-eccentric vibrating device, 1081-first rotating motor, 1082-rotating strip, 109-limiting groove, 2-rotary lifting and screening device, 201-lifting transmission belt, 2011-lifting supporting plate, 2012-plate lifting belt, 202-horizontal transmission screening belt, 2021-horizontal limiting plate, 2022-vibrating screen power roller, 2023-vibrating screen transmission roller, 2024-vibrating screen crawler, 2025-transmission fence, 203-rotary lifting device, 2031-surrounding plate, 2032-surrounding power roller, 2033-surrounding crawler belt, 2034-transportation fence, 2035-striker plate, 204-screening belt, 2041-screening plate, 2042-conveying roller, 2043-driving crawler belt, 205-screening box, 206-baffle plate, 207-material-separating cavity, 208-discharging channel, 209-eccentric hitting device, 210-material conveying auger, 3-stem membrane cleaning device, 301-screening frame, 3011-screening support plate, 3012-screening rotating roller, 3013-screening driving roller, 3014-screening crawler belt, 302-rubber scraping column, 303-transmission fence, 304-material collecting box, 305-discharging port, 306-material guide block and 307-strip ploughing.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that the products of the present invention conventionally lay out when in use, or orientations or positional relationships that are conventionally understood by those skilled in the art, which are merely for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 and 2, a potato combine harvester includes a soil crushing and stem cutting device 1, a rotary lifting and screening device 2, and a stem membrane cleaning device 3;

the rotary lifting screening device 2 comprises a secondary screening part, a rotary lifting part and a screening part;

the discharge end setting of hack stem cutting device 1 is in gyration promotion screening plant 2 the secondary portion feed end top of sieving, the feed end setting of stem membrane cleaning device 3 is in the secondary of gyration promotion screening plant 2 is crossed sieve portion discharge end below and is set up simultaneously the material loading end top of gyration promotion portion.

Like this, at first the potato material is excavated under the effect of garrulous soil stem cutting device 1 in the soil, then get into gyration through garrulous soil stem cutting device 1 and promote screening plant 2, wherein, the potato material carries out soil separation again in gyration promotion screening plant 2 after, clear up in getting into stem membrane cleaning device 3, the material after stem membrane and potato separation has been realized, the stem membrane is discharged from stem membrane cleaning device 3's afterbody, the potato falls to the gyration promotion part in gyration promotion screening plant 2 from stem membrane cleaning device 3's low side, thereby again under gyration lifting device's effect, the potato rebound, fall into the screening part of gyration lifting device from the top of gyration lifting device, thereby sieve. Therefore, the harvester can finish the aims of digging, soil and potato separation, stalk, weed and mulching film separation, potato block conveying and grading of potatoes in one step.

Further, referring to fig. 3 to 6, the soil pulverizing and stem cutting device 1 includes a pair of first supporting plates 101, a first transmission belt 102 is disposed between the first supporting plates 101, an upper tray 103 which is inclined downwards is installed at the end part of the first supporting plate 101, the lower end of the upper tray 103 extends downwards, the upper end of the upper tray 103 is arranged above the feeding end of the first conveyor belt 102, an extension bracket 104 is arranged at one end of the first support plate 101 facing the upper tray 103, the end of the extension frame 104 extends downwards and is rotatably provided with a cutting blade 105, the axis of the cutting blade 105 is vertical to the plate surface of the first supporting plate 101, a press roller 106 is arranged between the two cutting blades 105, the axis of the pressing roller 106 is parallel to the axis of the cutting blade 105 and the pressing roller 106 is connected with the inner side wall of the first supporting plate 101 through an inclined pressing rod 107 which is rotatably connected with the pressing roller 106.

Like this, at the in-process that the harvester gos forward, weeds in ridge face both sides are cut through the cutting piece 105 that sets up at the front end, and let ridge and ditch separate, let the ridge body get into between two cutting pieces 105, and then let the ridge body receive the pressing effect of compression roller 106, utilize the oppression suppression ridge face of compression roller 106, the soil block that lets the hardening of ridge face is crushed, utilize compression roller 106 simultaneously can also support whole device, avoid cutting piece 105 to cut the too deep degree of depth under the effect of equipment self weight. After the stems are cut and the soil is crushed, the crushed soil blocks with potato crops such as potatoes can move upwards along the upper tray 103 along with the forward movement of the device, enter the first conveying belt 102 and are conveyed.

Further, the first transmission belt 102 includes a first power roller 1021 and a first transmission roller 1022 rotatably installed on the side of the first supporting plate 101, the first power roller 1021 and the first transmission roller 1022 are in transmission connection through a first track 1023, a first receiving fence 1024 perpendicular to the side wall of the first supporting plate 101 is installed between the two first tracks 1023, and two adjacent first receiving fences 1024 are separated.

By means of the arrangement of the intervals of the first receiving fences 1024, soil blocks after being crushed can fall down from the space between two adjacent first receiving fences 1024 during the movement of crops on the first conveying belt 102, and therefore the materials are separated for the first time.

Further, an eccentric vibration device 108 is installed on the inner side surface of the first support plate 101, and a striking end of the eccentric vibration device 108 intermittently contacts with the surface of the first track 1023.

And, the eccentric vibration device 108 includes a first rotating motor 1081 installed at a side of the first support plate 101, a rotating end of the first rotating motor 1081 is horizontally disposed between an upper band and a lower band of the first track 1023, a rotating bar 1082 perpendicular to an axis thereof is installed at a side wall of the rotating end of the first rotating motor 1081, and a striking block is installed at an end of the rotating bar 1082 opposite to the rotating end of the first rotating motor 1081, the striking block being in contact with the first track 1023.

Thus, the first track 1023 is continuously hit by the hitting block by the rotation of the first rotating motor 1081, so that the first conveying belt 102 continuously vibrates up and down, and the falling efficiency of the soil blocks on the first receiving fence 1024 is improved.

Further, the material loading tray 103 comprises a plurality of mutually parallel plough shovel type slats arranged side by side, and a gap for soil falling is arranged between every two adjacent plough shovel type slats.

In the process of feeding, the materials can be filtered once, and part of the soil materials fall from gaps among the plough shovel type slats.

Furthermore, extend frame 104 include with the horizon bar of first backup pad 101 end connection, the horizon bar dorsad the one end of first backup pad 101 is connected with the pole that links up of downward sloping, it is provided with the spacing groove 109 that vertical direction both ends run through to link up on the pole, cut piece 105 rotates and sets up just in spacing groove 109 cut piece 105 with the inner wall of spacing groove 109 rotates and is connected.

The inner side of the bottom surface of the stopper groove 109 is in sliding contact with the outer wall of the cutting piece 105.

In this way, the contact between the cut piece 105 and the stopper groove 109 allows the bottom surface of the stopper groove 109 to clean the material remaining on the surface of the cut piece 105 after the cut piece 105 is cut.

Referring to fig. 7 to 10, the rotary lifting and screening device 2 includes a lifting conveyor belt 201 disposed obliquely, a horizontal conveying screening belt 202 is disposed below a discharge end of the lifting conveyor belt 201, a discharge end of the horizontal conveying screening belt 202 extends into the rotary lifting device 203, a screening belt 204 is disposed at a top blanking end of the rotary lifting device 203, a screening box 205 is mounted below the screening belt 204, a plurality of material separating cavities 207 are partitioned by baffles 206 in the screening box 205, and a discharge passage 208 communicated with each material separating cavity 207 is disposed on a side wall of the screening box 205.

Thus, in the process of conveying materials, potato materials with soil after primary screening fall into the lifting conveyer belt 201 from the previous conveyer device, then move upwards in the process of operation of the lifting conveyer belt 201 and fall onto the horizontal conveying sieving belt 202, after the materials enter the horizontal conveying sieving belt 202, under the action of the horizontal conveying sieving belt 202, residual soil adhered to the potato materials is screened on the horizontal conveying sieving belt 202, then the screened potato materials move along with the horizontal conveying sieving belt 202, along with the transmission of the materials on the horizontal conveying crawler belt, the materials fall from the discharging section of the horizontal conveying crawler belt and fall onto the rotary lifting device 203, then the materials move upwards around the horizontal conveying crawler belt under the action of the rotary lifting device 203, and after the materials move upwards to the top along with the rotary lifting device 203, the materials fall, fall on the screening belt 204, and potatoes with different sizes fall into the screening box 205 under the action of the screening belt 204, so that the screening and the grading of crops are completed. And this equipment utilizes the mode that the solid set up, reduces the area of equipment to in the in-process of operation, can also carry out the purpose that earth was sieved to the crop.

Further, the lifting conveyor belt 201 comprises a pair of inclined lifting support plates 2011, two plate-type lifting belts 2012 are installed between the lifting support plates 2011, and a driving motor for driving the plate-type lifting belts 2012 is installed on the outer wall of the lifting support plates 2011.

Furthermore, horizontal transport crosses sieve area 202 include a pair of with promote the horizontal limiting plate 2021 that the outer wall bottom of conveyer belt 201 is connected, and install the sieve power roller 2022 that shakes of horizontal limiting plate 2021 lateral wall and the sieve driving roller 2023 that shakes, shake sieve power roller 2022 with the sieve driving roller is connected through a pair of sieve track 2024 transmission that shakes, two shake and install a plurality of transport bars 2025 that are parallel to each other between the sieve track 2024, horizontal limiting plate 2021 is provided with the one side of sieve track 2024 that shakes is installed eccentric hitting and is beaten device 209, eccentric hitting of beating device 209 is beaten the end orientation of beating sieve track 2024 shakes.

Like this, utilize eccentric beating to hit the continuous beating of device 209 and beat sieve track 2024 that shakes to let sieve track 2024 that shakes form periodic upper and lower vibration, thereby let and carry fence 2025 also can continuous up-and-down motion, thereby disturb the potato class material on carrying fence 2025, the potato class material is also continuous takes place to shake, at the in-process of shake, earth and potato class material separation on the potato class material, and earth falls down from the gap between carrying fence 2025, thereby accomplish the cleanness again of potato class material.

Furthermore, gyration hoisting device 203 includes a pair of vertical and encircle the horizontal transportation crosses encircleing board 2031 that sieve area 202 set up, two the four corners position of encircleing board 2031 all installs around power roller 2032, every on encircleing board 2031 encircle power roller 2032 and connect through encircleing track 2033 transmission, two encircle and install transportation fence 2034 between the track 2033, every transportation fence 2034 orientation the striker plate 2035 is all installed to the one side that sieve area 202 was crossed to the horizontal transportation, the top orientation of striker plate 2035 the removal direction slope of encircleing track 2033, the material loading side that sieves area 204 sets up at the top surface encircle track 2033 below.

Then, the screening belt 204 is configured as a transportation section in the rotary lifting device 203 and a screening section extending out of the rotary lifting device 203, the screening belt 204 includes a pair of screening plates 2041 parallel to the horizontal transportation screening belt 202, a transportation roller 2042 is installed between the two screening plates 2041, an end of each transportation roller 2042 is in transmission link with a transmission track 2043, the transportation rollers 2042 at the end are in transmission link with a rotation end of a power motor, the intervals between the transportation rollers 2042 at the transportation section are the same, the intervals between the transportation rollers 2042 at the screening section gradually increase along a direction away from the transportation section, the screening boxes 205 are communicated below the screening section, and each baffle 206 is respectively disposed below the transportation rollers 2042 at the screening section.

And, every all install defeated material auger 210 in the branch material chamber 207, defeated material auger 210's discharge end is towards discharge channel 208.

Furthermore, as shown in fig. 11 to fig. 15, the stalk membrane cleaning device 3 includes a screening frame 301 connected to the revolving lifting screening device 2, rubber scraping columns 302 are uniformly arranged on transmission fences 303 of the screening frame 301, two rows of the rubber scraping columns 302 are arranged on each of the transmission fences 303, and the two rows of the rubber scraping columns 302 are arranged at an angle.

Therefore, potato or onion mashed crop with mulching film enters the obliquely arranged screening frame 301 from the base body, then the rubber scraping columns 302 on the conveying fence 303 are contacted with the potato crop/mulching film mixed material in the continuous operation process of the conveying fence 303, specifically, the rubber scraping columns 302 are inserted into gaps between the potato crops and the mulching film, then the potato crops move downwards along the obliquely arranged screening frame 301 under the action of self gravity, the mulching film and the stems are hung on the rubber scraping columns 302 and move along with the movement of the conveying fence 303, and therefore the separation of the potato crops and the stems (stems and mulching films) is achieved. Therefore, the problems that the traditional potato crops and stem membranes are labor-consuming and time-consuming to clean and difficult to clean in sections are solved.

Further, the two rubber wiper posts 302 on each of the conveying fences 303 are angled by 40 °.

Wherein, screening frame 301 includes a pair of sieve material backup pad 3011 that links to each other with the organism, sieve material live-rollers 3012 and sieve material driving roller 3013 are installed in the medial surface rotation of sieve material backup pad 3011, sieve material live-rollers 3012 with sieve material driving roller 3013 passes through sieve material track 3014 transmission and connects, two fixed mounting has between sieve material track 3014 transmission fence 303, adjacent two transmission fence 303 is parallel to each other the interval sets up, just transmission fence 303's extending direction with sieve material driving roller 3013's axis direction is parallel.

Utilize sieve material live-rollers 3012 to rotate under power equipment's drive like this, thereby utilize sieve material live-rollers 3012 to drive sieve material driving roller 3013 and rotate, and then let the track drive transmission fence 303 remove, it is concrete, let the transmission fence 303 that is in the top surface move along the screening frame 301 of slope from up direction down, thereby potato class crop landing downwards, and the stem membrane is then under the effect of post 302 is scraped to rubber, upward movement, just also be the top discharge side of whole screening frame 301 from the top end of transmission fence 303 at last and throw away.

Further, in order to avoid the stem membrane after the separation to get rid of the confusion in disorder on the soil and abandon, the below of screen frame 301 is provided with the case 304 that gathers materials, the top surface of case 304 that gathers materials respectively with two sieve material backup pad 3011's bottom surface is connected, the top surface of case 304 that gathers materials link up to cut with adjacent two space intercommunication between the transmission fence 303, the discharge end setting of screen frame 301 is in the top of case 304 that gathers materials, the bottom surface of case 304 that gathers materials be provided with a plurality of be parallel to each other and extending direction with the parallel bin outlet 305 of transmission fence 303 transmission direction.

Like this, can directly fall into the case 304 that gathers materials in the stem membrane of discharging from the screen frame 301 to the realization is to the collection of stem membrane, simultaneously, lets the stem membrane in the case 304 that gathers materials fall down from the bin outlet 305 regularly, and then lets the stem membrane align to grid on the ground, and the later stage of being convenient for is received the stem membrane and is picked up.

Further, a material guide block 306 parallel to the material discharge opening 305 is arranged on the bottom surface of the material collecting box 304 between two adjacent material discharge openings 305, and the top surfaces of the material guide blocks 306 are obliquely arranged and respectively inclined towards the material discharge openings 305.

Furthermore, the material guide block 306 is used to prevent a large amount of stalk membrane from remaining on the bottom surface of the material collecting box 304, so that the stalk membrane can be discharged from the discharge port 305 along the inclined direction of the material guide block 306.

Furthermore, a plowing bar 307 for plowing is mounted on the bottom surface of the collecting box 304, the plowing bar 307 is arranged in the extending direction of the discharge port 305, and the plowing bar 307 is arranged at the front step end of the collecting box 304 moving along the machine body.

In this way, as the whole machine body advances, the plowing bars 307 are used to continuously plow the bottom surface to form a gully, and the stalk membrane falling from the discharge opening 305 can directly fall into the formed gully, thereby facilitating the later burying process of the screened stalk membrane.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims (10)

1. A potato combine harvester is characterized in that: comprises a soil crushing and stem cutting device (1), a rotary lifting and screening device (2) and a stem membrane cleaning device (3);

the rotary lifting screening device (2) comprises a secondary screening part, a rotary lifting part and a screening part;

the discharge end setting of hack stalk-cutting device (1) is in gyration promotion screening plant (2) the secondary portion feed end top of sieving, the feed end setting of stem membrane cleaning device (3) is in the gyration promotes the secondary of screening plant (2) and crosses sieve portion discharge end below and set up simultaneously the material loading end top of gyration promotion portion.

2. A potato combine harvester according to claim 1, wherein: the soil crushing and stem cutting device (1) comprises a pair of first supporting plates (101), a first transmission belt (102) is arranged between the two first supporting plates (101), an upper charging tray (103) which is downward inclined is mounted at the end part of the first supporting plates (101), an extension frame (104) is mounted at one end, facing the upper charging tray (103), of the first supporting plates (101), the end part of the extension frame (104) extends downwards and is rotatably provided with cutting pieces (105), a press roll (106) is arranged between the two cutting pieces (105), and the press roll (106) is connected with the inner side wall of the first supporting plates (101) through an inclined press rod (107) which is rotatably connected with the press roll; first transmission band (102) are including rotating to be installed first power roller (1021) and first drive roller (1022) of first backup pad (101) side, first power roller (1021) with first drive roller (1022) are connected through first track (1023) transmission, two install between first track (1023) with the lateral wall vertically of first backup pad (101) first accept fence (1024), adjacent two separate the setting between first accept fence (1024).

3. A potato combine harvester according to claim 2, wherein: an eccentric vibration device (108) is installed on the inner side surface of the first supporting plate (101), and a beating end of the eccentric vibration device (108) is intermittently contacted with the surface of the first crawler track (1023); eccentric vibrating device (108) is including installing first rotation motor (1081) of first backup pad (101) side, the rotation end level of first rotation motor (1081) sets up between the upper band of first track (1023) and the lower band, the rotation end lateral wall of first rotation motor (1081) is installed rather than axis vertically and is rotated strip (1082), rotate strip (1082) with the piece is beaten to the relative one end of rotation end of first rotation motor (1081) is installed, beat the piece with first track (1023) contact.

4. A potato combine harvester according to claim 2, wherein: the feeding tray (103) comprises a plurality of mutually parallel shovel-type slats which are arranged side by side, and a gap for soil falling is formed between every two adjacent shovel-type slats;

meanwhile, the extension frame (104) comprises a horizontal rod connected with the end face of the first support plate (101), one end of the horizontal rod, which is back to the first support plate (101), is connected with a downwardly inclined joint rod, a limit groove (109) with two ends penetrating in the vertical direction is arranged on the joint rod, the cutting blade (105) is rotatably arranged in the limit groove (109), and the cutting blade (105) is rotatably connected with the inner wall of the limit groove (109);

the inner side of the bottom surface of the limiting groove (109) is in sliding contact with the outer wall of the cutting piece (105).

5. A potato combine harvester according to claim 1, wherein: gyration promotion screening plant (2) are including the promotion conveyer belt (201) that the slope set up, the discharge end below of promotion conveyer belt (201) is provided with horizontal transport and crosses sieve area (202), the discharge end that horizontal transport crossed sieve area (202) stretches into in gyration hoisting device (203), the top blanking end of gyration hoisting device (203) is provided with screening area (204), screening case (205) are installed to the below of screening area (204), it has a plurality of branch material chambeies (207) to separate through baffle (206) in screening case (205), the lateral wall of screening case (205) be provided with respectively with every divide discharge channel (208) of material chamber (207) intercommunication.

6. A potato combine harvester according to claim 5, wherein: the horizontal conveying screen passing belt (202) comprises a pair of horizontal limiting plates (2021) connected with the bottom end of the outer wall of the lifting conveying belt (201), a vibrating screen power roller (2022) and a vibrating screen transmission roller (2023) which are arranged on the side wall of the horizontal limiting plates (2021), the vibrating screen power roller (2022) and the vibrating screen transmission roller (2023) are in transmission connection through a pair of vibrating screen tracks (2024), a plurality of mutually parallel conveying fences (2025) are arranged between the two vibrating screen tracks (2024), an eccentric striking device (209) is arranged on one surface of the horizontal limiting plate (2021) provided with the vibrating screen tracks (2024), and the striking end of the eccentric striking device (209) faces the vibrating screen tracks (2024);

meanwhile, the rotary lifting device (203) comprises a pair of surrounding plates (2031) which are vertical and are arranged around the horizontal conveying sieving belt (202), surrounding power rollers (2032) are respectively arranged at four corners of the two surrounding plates (2031), the surrounding power rollers (2032) on each surrounding plate (2031) are in transmission connection through surrounding tracks (2033), a transportation fence (2034) is arranged between the two surrounding tracks (2033), a material baffle (2035) is arranged on one surface of each transportation fence (2034) facing the horizontal conveying sieving belt (202), the top end of the material baffle (2035) inclines towards the moving direction of the surrounding tracks (2033), and the feeding side of the sieving belt (204) is arranged below the surrounding tracks (2033) on the top surface;

and the screening belt (204) is arranged as a transport section inside the rotary lifting device (203) and a screening section extending out of the rotary lifting device (203), the screening belt (204) comprises a pair of screening plates (2041) parallel to the horizontal conveying screening belt (202), a conveying roller (2042) is installed between the two screening plates (2041), the end part of each conveying roller (2042) is in transmission connection through a transmission crawler (2043), the conveying rollers (2042) at the end part are in transmission link with the rotating end of the power motor, the intervals between the conveying rollers (2042) at the transportation section are the same, the intervals between the conveying rollers (2042) at the screening section are gradually increased along the direction far away from the transportation section, the screening box (205) is communicated below the screening section, and each baffle (206) is arranged below the conveying roller (2042) of the screening section.

7. A potato combine harvester according to claim 1, wherein: the stem membrane cleaning device (3) comprises a screening frame (301) connected with the rotary lifting screening device (2), rubber scraping columns (302) are uniformly arranged on transmission fences (303) of the screening frame (301), two rows of rubber scraping columns (302) are arranged on each transmission fence (303), and the two rows of rubber scraping columns (302) are arranged at an angle; the angle formed by the two rubber scraping columns (302) on each transmission fence (303) is 40 degrees.

8. A potato combine harvester according to claim 7, characterized in that: screening frame (301) include a pair of sieve material backup pad (3011) that links to each other with the organism, the medial surface of sieve material backup pad (3011) is rotated and is installed sieve material live-rollers (3012) and sieve material driving roller (3013), sieve material live-rollers (3012) with sieve material live-rollers (3013) are connected through sieve material track (3014) transmission, two fixed mounting has between sieve material track (3014) transmission fence (303), adjacent two transmission fence (303) parallel to each other the interval sets up, just the extending direction of transmission fence (303) with the axis direction of sieve material live-rollers (3013) is parallel.

9. A potato combine harvester according to claim 8, wherein: the below of sieve frame (301) is provided with case (304) of gathering materials, the top surface of charging box respectively with two the bottom surface of sieve material backup pad (3011) is connected, the top surface of charging box link up cut with adjacent two space intercommunication between transmission fence (303), the discharge end setting of sieve frame (301) is in the top of charging box, the bottom surface of case (304) of gathering materials be provided with a plurality of be parallel to each other and extending direction with the parallel bin outlet (305) of transmission fence (303) transmission direction.

10. A potato combine harvester according to claim 9, wherein: a material guide block (306) parallel to the discharge openings (305) is arranged on the bottom surface of the material collecting box (304) between two adjacent discharge openings (305), and the top surfaces of the material guide blocks (306) are obliquely arranged and are respectively inclined towards the discharge openings (305);

the bottom surface of the material collecting box (304) is provided with a plowing strip (307) for plowing, the plowing strip (307) is arranged in the extending direction of the discharge port (305), and the plowing strip (307) is arranged at the front step end of the material collecting box (304) moving along with the machine body.

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