CN212910801U - Double-layer vibrating screen for cyperus esculentus harvester - Google Patents

Abstract

The utility model relates to a double-deck shale shaker for cyperus esculentus harvester, technical scheme is, including the frame, be provided with upper shale shaker, auger formula soil throwing hack device and lower floor's shale shaker in the frame respectively, the upper shale shaker includes the upper screen plate, and the upper screen plate is the vibrating transport structure who comprises little sieve section and big sieve section, the lower floor's shale shaker is the double-deck vibrating transport structure who comprises hack delivery board and lower floor's sieve that sets up alternately from top to bottom, auger formula soil throwing hack device includes the casing, and casing upper portion opens the casing feed inlet that is linked together with its inner chamber, and the casing feed inlet is located under big sieve section initiating terminal, is fixed with water conservancy diversion collision board along the frame on the casing feed inlet discharge direction; the utility model discloses the mixture of adaptation cyperus bean and clod carries out multi-stage screening, finally is separated at lower floor's sieve, has improved cyperus bean's the rate of rising clean, and the energy consumption reduces greatly, has prolonged its life.

Description

Double-layer vibrating screen for cyperus esculentus harvester

Technical Field

The utility model relates to agricultural machinery, in particular to a double-layer vibrating screen for a cyperus esculentus harvester.

Background

In the past, the cyperus esculentus is excavated generally by manual excavation, so that the labor intensity is high and the efficiency is low. Some rhizome excavators appear in the market at present, the excavating efficiency is greatly improved, the labor intensity is reduced, the cyperus esculentus combined harvester with the application number of 201320772694.1, which is previously applied by novel people, is really used, but due to the structural problem, the application range is small, the cyperus esculentus combined harvester can only be used for one rhizome crop, the net yield is low, fruits often leak from gaps, the screening effect is unsatisfactory, and serious economic loss is caused. The application number is 201620865285. X' a self-propelled shallow rhizome combine harvester, but in the using process, the self-propelled small-particle root and stem crop combine harvester is difficult to adapt to small-particle crops, has low yield, unsatisfactory screening effect, unclean separation and unsatisfactory using effect, causes serious economic loss, although the self-propelled small-particle root and stem crop combine harvester with the application number of 201710786754.8 which is previously applied by the applicant prolongs the screening length, however, because of the large number of screens and high positions, the machine has large vibration and cannot be used at all in practice, the quick harvesting and the improvement of the screening effect and the yield of the small-particle root and stem crops become empty ideas, and the practical application is not realized at all, and the self-propelled small-particle root and stem crop harvester with the application number of 2018205160320 which is previously applied by the applicant solves the problems to the greatest extent, however, in the practical application process, the vibration modes of the upper double-layer vibrating screen and the lower double-layer vibrating screen are as follows: the upper double-layer vibrating screen is driven to vibrate by the vibrating arm, the lower double-layer vibrating screen is driven to vibrate by the upper double-layer vibrating screen, and the lower force needs to be transmitted downwards after passing through the upper double-layer vibrating screen body, so that the upper double-layer vibrating screen is large in stress, high in vibrating force, large in energy consumption, easy to damage and short in service life; meanwhile, in the screening process, larger and harder soil blocks are difficult to crush, and particularly in northern cold frozen soil areas and areas with harder soil blocks, the yield of harvesting of the cyperus esculentus is difficult to guarantee. Therefore, improvement and innovation thereof are imperative.

SUMMERY OF THE UTILITY MODEL

In view of the above situation, in order to overcome the defects of the prior art, the utility model aims to provide a crawler-type cyperus esculentus harvester, which can effectively solve the problem of efficient screening of cyperus esculentus.

The utility model provides a technical scheme be:

a double-layer vibrating screen for a cyperus esculentus harvester comprises a rack, wherein an upper layer vibrating screen, an auger type soil throwing and breaking device and a lower layer vibrating screen are respectively arranged on the rack, the upper layer vibrating screen comprises an upper layer screen plate, the upper layer screen plate is a vibrating type conveying structure formed by a small screen hole section positioned on the side of a feeding end and a large screen hole section positioned on the side of a discharging end, a first screen hole used for separating small-particle soil blocks and enabling a mixture of cyperus esculentus and residual soil blocks to be conveyed forwards continuously is arranged on the small screen hole section, and a second screen hole used for separating a mixture of cyperus esculentus and larger-particle soil blocks and enabling residual soil blocks to be conveyed forwards is arranged on the large screen hole section;

the lower-layer vibrating screen is a double-layer vibrating type conveying structure consisting of a soil crushing conveying plate and a lower-layer sieve plate which are arranged alternately from top to bottom, the bottom of the soil crushing conveying plate is provided with a closed bottom plate which is used for conveying soil blocks separated from the small sieve pore sections of the upper-layer sieve plate forwards and finally falls into the ground, and the lower-layer sieve plate is provided with a third sieve pore which is used for separating the soil blocks and enabling the cyperus esculentus to be conveyed forwards continuously;

the feeding end of the upper-layer sieve plate is connected with the discharging end of the lifting conveying device, and the discharging end of the upper-layer sieve plate is longer than the lower-layer sieve plate and extends out of the rear end of the rack to form a first soil block discharging and backfilling structure;

the crushed soil conveying plate is positioned right below the small sieve hole section of the upper sieve plate, the discharge end of the crushed soil conveying plate is longer than the discharge end of the lower sieve plate and extends out of the rear end of the frame to form a second soil block discharging and backfilling structure;

the auger type soil throwing and breaking device comprises a shell, wherein a shell feeding hole communicated with an inner cavity of the shell is formed in the upper part of the shell, the shell feeding hole is positioned right below the starting end of the large sieve pore section, a shell discharging hole which is communicated with the inside and the outside is formed in the side wall of the shell, the bottom surface of the shell where the shell discharging hole is formed is arranged in an upward inclined manner from the inner cavity of the shell to the direction of the shell discharging hole to form a discharging guide plate, the inner cavity of the shell is rotatably connected with a shifting plate rotating shaft which is arranged along the length direction of the inner cavity of the shell, and a shifting plate used for shifting materials upwards from; a diversion collision plate is fixed on the frame along the discharging direction of the feeding hole of the shell.

Preferably, the deflector impingement plate comprises a top plate for breaking up the clods and a deflector for directing material into the feed end of the lower screen deck.

Preferably, a first hanging wall is hinged between two sides of the upper-layer sieve plate where the small sieve pore section is located and the rack at the top, a second hanging wall is hinged between two sides of the upper-layer sieve plate where the large sieve pore section is located and the rack at the top, a vibrating arm is arranged on the first hanging wall, an eccentric wheel driven by an engine is arranged on the rack, an eccentric block is arranged on the eccentric wheel, one end of the vibrating arm is hinged with the eccentric block, and the other end of the vibrating arm is hinged with the first hanging wall, so that the vibrating type conveying structure of the upper-layer sieve plate is formed.

Preferably, the soil crushing conveying plate and the lower layer sieve plate are connected together in an up-down interval mode through a plurality of groups of connecting plates on the side surfaces, each group of connecting plates comprises two bilateral symmetry plates, a group of transmission arms which are bilateral symmetry plates are arranged on the machine frame between the upper layer vibrating screen and the lower layer vibrating screen, two ends of each transmission arm respectively extend upwards and downwards, the middle of each transmission arm is rotatably connected with the machine frame through a pin shaft, a hinged driving arm is arranged on the first hanging wall, one end of each driving arm is hinged to the first hanging wall, the other end of each driving arm is hinged to the upper end of the corresponding side transmission arm, the lower end of each transmission arm is hinged to the connecting plate closest to the discharge end of the lower layer sieve plate, hinged second hanging arms are arranged on the other connecting plates, one end of each group of second hanging arms is hinged to the corresponding connecting plate, the other end of each group of second.

Preferably, the aperture of the first sieve pore is 6-8mm, and the aperture of the second sieve pore is 20-25 mm; the aperture of the third sieve pore is 6-8 mm.

Compared with the prior art, the utility model has the advantages of it is following:

1. the auger type soil throwing and breaking device is arranged between the upper vibrating screen and the lower vibrating screen, a mixture of the cyperus esculentus and soil blocks is thrown out to impact the flow guiding collision plate and then falls into the lower screen plate, and in the process of throwing, flying and colliding, the larger and harder soil blocks are broken into small soil blocks through impact, so that the adaptability to different soils is improved, and particularly in the northern cold frozen soil areas and the harder soil blocks, the yield of cyperus esculentus harvesting is greatly improved.

2. The upper layer vibrating screen is divided into two sections with different screen holes with different apertures, small granular soil blocks screened out by the small screen hole sections are downwards vibrated and conveyed from the soil crushing conveying plate and finally fall to the ground for backfilling, the mixture of the cyperus esculentus and the soil blocks on the large screen hole sections of the upper layer screen plate falls into the inner cavity of the auger type soil throwing and crushing device shell from the second screen holes for throwing and crushing, the large soil which cannot be screened by the second screen holes falls into the ground from the discharge end of the upper layer screen plate extending out of the upper layer screen plate for backfilling, the screened soil is guaranteed to be smoothly discharged, the accumulation of the soil is effectively avoided, the device is suitable for multi-stage screening of the mixture of the cyperus esculentus and the soil blocks, the cyperus esculentus is finally separated on the lower layer screen plate.

3. The transmission arm is arranged at the front ends of the upper vibrating screen and the lower vibrating screen, the transmission arm pushes the upper vibrating screen and the lower vibrating screen to vibrate simultaneously through the vibrating arm, the energy consumption is greatly reduced, the vibrating force does not need to be transmitted through the upper vibrating screen body, and the service life of the vibrating screen is prolonged.

4. The conveying directions of the layer vibrating screen and the lower layer vibrating screen are opposite, and the vibrating forces are offset, so that the stability of the whole machine is greatly improved, the separation length is prolonged, and the net yield, the separation efficiency and the unit area harvesting efficiency are improved.

In a word, the utility model discloses novel structure is unique, and the complete machine design is firm reliable, and the transmission is reasonable, and easy operation carries out mechanical type quick screening to the cyperus bean, can direct application and cyperus bean harvester, makes it collect excavate the hack, the garrulous root, the separation, the screening, retrieve multiple functions as an organic whole, is suitable for the results of high efficiency cyperus bean to it is convenient to remove, and the popularization prospect is big, is the innovation on the cyperus bean harvester, has good society and economic benefits.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the harvesting direction of the cyperus esculentus of the utility model.

Fig. 3 is the schematic structural diagram of the auger type soil throwing and breaking device of the utility model.

Fig. 4 is a sectional view of the auger type soil throwing and breaking device of the utility model.

Fig. 5 is a top view of the auger type soil throwing and breaking device of the present invention.

Fig. 6 is a schematic structural view of the upper deck of the present invention.

Fig. 7 is a schematic structural view of the soil crushing and conveying plate of the present invention.

Fig. 8 is a schematic structural view of the lower deck screen deck of the present invention.

Fig. 9 is a schematic structural view of the screen plate of the transverse conveying vibrating screen of the present invention.

Fig. 10 is a schematic view of the application of the present invention to a cyperus esculentus harvester.

Detailed Description

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1-10, the utility model comprises a frame 1, wherein an upper layer vibrating screen, an auger type soil throwing and breaking device and a lower layer vibrating screen are respectively arranged on the frame 1, the upper layer vibrating screen comprises an upper layer screen plate 14, the upper layer screen plate 14 is a vibrating type conveying structure consisting of a small screen hole section 14a positioned on the side of a feeding end and a large screen hole section 14b positioned on the side of a discharging end, a first screen hole 144 for separating small-particle soil blocks and continuously conveying the mixture of cyperus esculentus and residual soil blocks forwards is arranged on the small screen hole section 14a, and a second screen hole 145 for separating the mixture of cyperus esculentus and larger-particle soil blocks and continuously conveying the residual soil blocks forwards is arranged on the large screen hole section 14 b;

the lower layer vibrating screen is a double-layer vibrating type conveying structure consisting of a soil crushing conveying plate 18 and a lower layer screen plate 19 which are arranged alternately from top to bottom, the bottom of the soil crushing conveying plate 18 is provided with a closed bottom plate 181 which is used for conveying soil blocks separated from the small screen hole sections of the upper layer screen plate forwards and finally falls into the ground, and the lower layer screen plate 19 is provided with a third screen hole 194 which is used for separating the soil blocks and enabling the cyperus esculentus to be conveyed forwards continuously;

the feeding end of the upper-layer sieve plate is connected with the discharging end of the lifting conveying device 8, and the discharging end of the upper-layer sieve plate is longer than the lower-layer sieve plate and extends out of the rear end of the rack to form a first soil block discharging and backfilling structure;

the crushed soil conveying plate 18 is positioned right below the small sieve hole section 14a of the upper sieve plate, the discharge end of the crushed soil conveying plate is longer than that of the lower sieve plate and extends out of the rear end of the frame to form a second soil block discharging and backfilling structure;

the auger type soil throwing and breaking device comprises a shell 174, wherein a shell feeding hole 17a communicated with the inner cavity of the shell 174 is formed in the upper part of the shell 174, the shell feeding hole 17a is positioned right below the starting end of the large sieve pore section 14b, a shell discharging hole 17b communicated with the inside and the outside is formed in the side wall of the shell 174, the bottom surface of the shell where the shell discharging hole 17b is positioned is arranged in an upward inclined manner from the inner cavity of the shell to the direction of the shell discharging hole to form a discharging guide plate 175, the inner cavity of the shell 174 is rotatably connected with a shifting plate rotating shaft 171 arranged along the length direction of the inner cavity, and a shifting plate 173 used for shifting materials upwards from the shell discharging hole is arranged on; a flow guiding collision plate 20 is fixed on the frame along the discharging direction of the shell feeding hole 17 a.

To ensure the effect of use, the deflector impingement plate 20 comprises a top plate 201 for breaking up the soil mass and a deflector plate 202 for guiding the material to the feed end of the lower screen deck 19.

The vibrating type conveying structure is characterized in that a first hanging wall 11 is hinged between two sides of an upper layer sieve plate where a small sieve hole section 14a is located and a rack at the top, a second hanging wall 25 is hinged between two sides of the upper layer sieve plate where a large sieve hole section is located and the rack at the top, a vibrating arm 10 is mounted on the first hanging wall 11, an eccentric wheel 9 driven by an engine is mounted on the rack 1, an eccentric block is mounted on the eccentric wheel 9, one end of the vibrating arm 10 is hinged to the eccentric block, and the other end of the vibrating arm is hinged to the first hanging wall 11 (a hinge point 11a), so that the vibrating type conveying structure for the upper layer sieve plate is formed.

The soil crushing conveying plate 18 and the lower layer sieve plate 19 are alternately arranged and connected together from top to bottom by a plurality of groups of connecting plates 23 on the side surface, each group of connecting plates 23 comprises two bilaterally symmetrical connecting plates, a group of bilaterally symmetrical transmission arms 13 are arranged on the machine frame between the upper layer vibrating screen and the lower layer vibrating screen, two ends of each transmission arm 13 respectively extend upwards and downwards, the middle part of the first hanging wall is rotationally connected with the frame through a pin shaft 13a, a hinged driving arm 12 is arranged on the first hanging wall 11, one end of the driving arm 12 is hinged with the first hanging wall (a hinged point 11b), the other end is hinged with the upper end of a corresponding side driving arm 13, the lower end of the driving arm 13 is hinged with a connecting plate which is closest to the discharge end of the lower-layer sieve plate, articulated second hanging arms 26 are arranged on the other connecting plates, one end of each group of second hanging arms 26 is articulated with the corresponding connecting plate, and the other end of each group of second hanging arms 26 is articulated with the frame to form a vibrating type conveying structure of the soil crushing conveying plate and the lower-layer sieve plate.

The upper end of the first hanging wall 11 is hinged with the frame, the lower end of the first hanging wall is hinged with the side wall of the upper-layer sieve plate, the upper end of the second hanging wall is hinged with the frame, and the lower end of the second hanging wall is hinged with the side wall of the upper-layer sieve plate, so that a vibration traction structure of the upper-layer sieve plate is formed.

In a self-propelled small-grain root crop harvester of the applicant's prior application No. 2018205160320 or a small-grain root crop screening device of the applicant's prior application No. 2018205160161, the upper double-deck vibrating screen and the lower double-deck vibrating screen are vibrated: drive the vibration of the double-deck shale shaker in upper portion through the vibrating arm, the double-deck shale shaker vibration of rethread upper portion drives the vibration of the double-deck shale shaker in lower part, the strength of lower floor needs to pass through the transmission again after the double-deck shale shaker body in upper portion, it is big to lead to the double-deck shale shaker atress in upper portion, the vibration power is high, the energy consumption is big, and lead to damaging easily, and short service life, and this application is owing to set up the driving arm at the front end of shale shaker, the conduction of this its power is promoted simultaneously through the vibrating arm, the vibration of lower floor's shale shaker, its energy consumption reduces greatly, the vibrational force need not conduct through the upper shale.

The aperture of the first sieve hole 144 is 6-8mm, and the aperture of the second sieve hole 145 is 20-25 mm; the aperture of the third sieve hole 194 is 6-8 mm.

And a baffle 191 which extends upwards and is positioned outside the guide plate is fixed at the end part of the lower-layer sieve plate 19. Effectively prevent the cyperus esculentus from falling down from the top through the guide plate and falling down from the end part of the lower-layer sieve plate, and guarantee that the cyperus esculentus can completely fall into the lower-layer vibrating screen for screening and conveying.

The upper layer vibrating screen and the lower layer vibrating screen are opposite in conveying direction and are arranged in a mode that the upper layer vibrating screen and the lower layer vibrating screen are inclined downwards towards the vibrating conveying direction, the length of the upper layer vibrating screen and the length of the lower layer vibrating screen are both 2.5-4.0m, the width of the upper layer vibrating screen and the width of the lower layer vibrating screen reach 1.5-2.5m, the separation length is greatly prolonged, and the net yield, the separation efficiency and the unit area harvesting efficiency are improved.

The upper-layer sieve plate 14 comprises a first frame 141, a transverse support 142 is arranged on the first frame at the junction of the small sieve hole section 14a and the large sieve hole section 14b, a first sieve mesh is covered between the transverse support in the small sieve hole section 14a and the first frame, first sieve holes 144 are uniformly distributed on the first sieve mesh, a second sieve mesh is covered between the transverse support in the second sieve hole section 14b and the first frame, the second sieve holes 145 are uniformly distributed on the first sieve mesh, and first blocking edges 143 which vertically extend upwards are arranged on two sides of the first frame;

the soil crushing and conveying plate 18 comprises a closed bottom plate 181 and second flanges 182 arranged at two sides of the closed bottom plate;

the lower-layer sieve plate 19 comprises a second frame 192 and a third sieve mesh covering the center of the second frame, third sieve holes 194 are uniformly distributed on the third sieve mesh, and third retaining edges 193 which vertically extend upwards are arranged on two sides of the second frame 192;

the conveying directions of the upper layer vibrating screen and the lower layer vibrating screen are opposite, and the conveying directions of the lower layer vibrating screen and the transverse conveying vibrating screen are mutually vertical.

The discharge end of the upper-layer sieve plate is longer than the lower-layer sieve plate and extends out of the rear end of the rack, and large soil which cannot be sieved by the second sieve mesh falls into the ground from the discharge end of the extended upper-layer sieve plate and is backfilled; the crushed soil conveying plate is positioned right below the small sieve pore section of the upper sieve plate, so that small granular soil blocks screened from the small sieve pore section of the upper sieve plate are conveyed downwards by the crushed soil conveying plate in a vibration mode and finally fall to the ground for backfilling, the upper conveying plate 26a is a closed bottom plate and is arranged in a downward inclined mode, and the soil conveying mode of vibrating and sliding simultaneously ensures that screened soil is smoothly discharged, and effectively avoids soil accumulation; meanwhile, the mixture of the cyperus esculentus and the soil blocks on the large sieve pore section of the upper sieve plate falls into the inner cavity of the shell of the auger type soil throwing and crushing device from the second sieve pore, the soil blocks are crushed in the rotating and stirring process of the stirring plate and are finally thrown out from the discharge port of the shell along the flow guide direction of the discharge guide plate, the mixture collides with the flow guide collision plate and then falls into the lower sieve plate 19, and in the throwing, flying and collision processes, the larger and harder soil blocks are crushed into small soil blocks through collision, and finally separated on the lower sieve plate, so that the output rate of the cyperus esculentus is improved.

A first damping spring 22a is arranged between the upper-layer vibrating screen and the rack 1, a second damping spring 22b is arranged between the lower-layer vibrating screen and the rack 1, one end of the first damping spring is connected with the outer wall of the first flange of the upper-layer screen plate, and the other end of the first damping spring is connected with the rack; one end of the second damping spring is connected with the connecting plate 23, and the other end of the second damping spring is connected with the rack, so that the vibration screen is further buffered and damped.

The frame is provided with a lifting conveying device 8 and a transverse conveying vibrating screen 24, the discharge end of the lifting conveying device 8 is connected with the feed end of the upper vibrating screen, and the discharge end of the lower vibrating screen is connected with the feed end of the transverse conveying vibrating screen 24.

The transverse conveying vibrating screen 24 is a vibrating conveying structure formed by transverse single-layer vibrating screen plates, and fourth screen holes 243 for further separating soil blocks to enable the cyperus esculentus to be conveyed forwards continuously are arranged on the transverse single-layer vibrating screen plates; the aperture of the fourth sieve pore is 6-8mm, and the aperture of the fourth sieve pore is smaller than or equal to the grain diameter of the cyperus esculentus fruit.

The lifting conveying device comprises a lifting conveying belt which is obliquely arranged, the feeding end of the lifting conveying belt is connected with the discharging end of the conveying belt of the soil crushing feeding device, and soil block screening holes are formed in the conveying belt of the soil crushing feeding device and the lifting conveying belt to form a filtering type lifting conveying structure; the aperture of the soil block screening hole is larger than the grain diameter of the cyperus esculentus fruit.

And the frame is provided with an engine 4 for providing power for the upper layer vibrating screen, the auger type soil throwing and breaking device and the lower layer vibrating screen.

A fan 15 is fixed on the rack above the upper-layer sieve plate 14, an air inlet of the fan 15 is opposite to the conveying surface of the upper-layer sieve plate 14, and a blowing guide plate 21 which extends towards the rear end of the rack and extends out of the rear end of the rack is arranged on the rack where an air outlet of the fan 15 is located.

The blowing guide plate comprises a guide plate body and baffles fixed on two sides of the guide plate body; the fan is used for sucking impurities such as lighter leaves in the mixture of the cyperus esculentus fruits and the soil blocks, blowing the impurities out of the blowing guide plate and finally discharging the impurities to the ground from the rear end of the rack.

An illuminating lamp 6a is arranged above the front end of the cab 6, so that illumination during night operation is guaranteed.

When the utility model is used, the mixture of the cyperus esculentus fruits and the soil blocks is sent into the upper layer vibrating screen (as shown by an arrow A in figure 2) through the lifting and conveying device, the cyperus esculentus fruits and the soil blocks are conveyed forwards through vibration (as shown by an arrow C in figure 2), meanwhile, sundries such as lighter leaves and the like in the mixture of the cyperus esculentus fruits and the soil blocks on the upper layer vibrating screen are sucked away under the action of wind power of the fan and blown out from the blowing guide plate and finally discharged to the ground from the rear end of the frame (as shown by an arrow B, E, F in figure 2), in the process of vibrating and conveying of the small sieve pore sections of the upper layer sieve plate, the small-particle soil blocks are separated by the first sieve pores and fall onto the soil crushing conveying plate which is positioned right below the small-particle soil blocks (as shown by an arrow D in figure 2), then the small-particle soil blocks are vibrated and conveyed upwards and downwards on the soil crushing conveying, separating the mixture of the cyperus esculentus fruits and the soil blocks from the second sieve mesh and falling into an auger type soil throwing and breaking device (shown by an arrow G in figure 2), and simultaneously, falling the large soil blocks from the discharge end of the upper-layer sieve plate of the extending part into the ground for backfilling (shown by an arrow L in figure 2); the mixture of the cyperus esculentus fruits and the soil blocks entering the inner cavity of the shell of the auger type soil throwing and crushing device is stirred by the stirring plate in a counterclockwise rotation mode to crush the soil blocks, the mixture is finally thrown out from a shell discharge port along the flow guide direction of the discharge guide plate (as shown by an arrow H in fig. 2), the mixture impacts the flow guide collision plate and then falls into the lower-layer sieve plate (as shown by an arrow I in fig. 2), during the throwing, collision and crushing processes, the larger and harder soil blocks are crushed into small soil blocks through impact, the small soil blocks fall into the lower-layer sieve plate and are conveyed in a reverse vibration mode (as shown by an arrow J in fig. 2), the crushed small-particle soil blocks are further sieved during the vibration conveying process, and finally the residual cyperus esculentus fruits and a small part of.

The utility model discloses can cooperate cyperus bean harvester or tiny particle rhizome crop harvester to use, if use in the application number that the applicant applied for earlier is 2018205160320 a self-propelled tiny particle rhizome crop harvester during, will the utility model discloses the dress is in the frame, and the feed end of upper shale shaker links to each other with the feed end that promotes conveyor, and the discharge end of lower floor's shale shaker links to each other with the feed end of lateral transportation shale shaker can.

The utility model can also be arranged in a cyperus esculentus harvester which comprises a chassis, a cab, a frame and an engine, wherein the cab, the frame and the engine are arranged on the chassis, the chassis is provided with a traveling mechanism driven by the engine, the frame is respectively provided with a soil crushing feeding device and a lifting conveying device driven by the engine, upper shale shaker, auger-type soil throwing hack device, lower floor's shale shaker, cross feed shale shaker and receipts material hoist mechanism, hack feed arrangement's feed end links to each other with the feed end that promotes conveyor, it links to each other with the feed end of upper shale shaker to promote conveyor's discharge end, the discharge end of lower floor's shale shaker links to each other with the feed end of cross feed shale shaker, the discharge end of cross feed shale shaker links to each other with the feed inlet 27a who receives material hoist mechanism, be provided with the results case in the frame of upper shale shaker top, receive material hoist mechanism's discharge gate 27b and the feed inlet on results case upper portion and link to each other.

The walking mechanism is a walking crawler arranged on two sides of the chassis;

the crushed soil feeding device is the prior art, and can adopt a crushed soil feeding device in a self-propelled small-particle root and stem crop harvester with the application number of 2018103257608 previously applied by the applicant. The effect of the device is that cyperus esculentus fruits are shoveled out of soil through the soil loosening knife, the large soil is primarily crushed through the soil crushing knife, and then the press roller on the conveying belt is provided to convey the large soil into the conveying belt of the lifting conveying device after the large soil is further crushed.

The walking crawler 2 comprises a left walking crawler and a right walking crawler which are symmetrically arranged on two sides of the chassis, the left walking crawler and the right walking crawler both comprise driving wheels 2a, driven wheels and crawler bodies wound on the driving wheels and the driven wheels, a gearbox 3 is arranged on the rack, a wheel shaft of the driving wheels is connected with an output shaft of the gearbox 3, a power input end of the gearbox 3 is connected with a power output end of the engine to form a crawler type walking structure, and the power input end of the speed reducer can perform power transmission with the output shaft of the engine through conventional transmission parts such as intermediate wheels or chains.

Due to the adoption of the crawler-type walking structure, the walking ground grabbing force is strong, the power is sufficient, the walking weight and the power requirements of the whole machine are met when the width of the whole machine is increased, the unit harvesting area can be increased by the width, the harvesting efficiency of the cyperus esculentus is greatly improved, the walking power can still be ensured when the width of the cyperus esculentus is smaller than the excavating width of the soil crushing and feeding device, and meanwhile, the walking part of the cyperus esculentus is a harvested field because the width of the cyperus esculentus is smaller than the width of the soil loosening knife of the soil crushing and feeding device, so that the crushing damage to fruits is effectively prevented.

The lifting conveying device comprises a lifting conveying belt which is obliquely arranged, the feeding end of the lifting conveying belt is connected with the discharging end of the conveying belt of the soil crushing feeding device, and soil block screening holes are formed in the conveying belt of the soil crushing feeding device and the lifting conveying belt to form a filtering type lifting conveying structure; the aperture of the soil block screening hole is larger than the grain diameter of the cyperus esculentus fruit.

The upper end of a support frame of the soil crushing and feeding device is hinged with the front end of the rack, and a first hydraulic cylinder 16a for adjusting the angle of the support frame is arranged between the support frame of the soil crushing and feeding device and the rack; the harvesting box 18 is provided with a second hydraulic cylinder 16b for overturning the harvesting box; the engine 4 is arranged on the frame above the upper layer vibrating screen between the cab 6 and the harvesting box 28, and the frame at one side of the engine 4 is also provided with an oil cylinder 5 corresponding to the first hydraulic cylinder and the second hydraulic cylinder.

An illuminating lamp 6a is arranged above the front end of the cab 6, so that illumination during night operation is guaranteed.

After the engine is started, power is transmitted to each power element through power transmission structures such as a chain wheel, a chain, a belt pulley and a belt (not shown) arranged on the rack to drive each part to operate, the walking crawler drives the harvester to walk, the cyperus esculentus fruits are shoveled out of the soil by the clod-crushing feeding device, large soil blocks are preliminarily crushed and then sent to a conveying belt of a lifting conveying device, the cyperus esculentus fruits and soil block mixture is sent to an upper layer vibrating screen through the lifting conveying device, finally the cyperus esculentus fruits and the soil block mixture are sent to a receiving and lifting mechanism conveying belt through the transverse conveying vibrating screen, and then the cyperus esculentus fruits are sent to a harvesting box to.

Compared with the prior art, the utility model has the advantages of it is following:

1. the auger type soil throwing and breaking device is arranged between the upper vibrating screen and the lower vibrating screen, a mixture of the cyperus esculentus and soil blocks is thrown out to impact the flow guiding collision plate and then falls into the lower screen plate, and in the process of throwing, flying and colliding, the larger and harder soil blocks are broken into small soil blocks through impact, so that the adaptability to different soils is improved, and particularly in the northern cold frozen soil areas and the harder soil blocks, the yield of cyperus esculentus harvesting is greatly improved.

2. The upper layer vibrating screen is divided into two sections with different screen holes with different apertures, small granular soil blocks screened out by the small screen hole sections are downwards vibrated and conveyed from the soil crushing conveying plate and finally fall to the ground for backfilling, the mixture of the cyperus esculentus and the soil blocks on the large screen hole sections of the upper layer screen plate falls into the inner cavity of the auger type soil throwing and crushing device shell from the second screen holes for throwing and crushing, the large soil which cannot be screened by the second screen holes falls into the ground from the discharge end of the upper layer screen plate extending out of the upper layer screen plate for backfilling, the screened soil is guaranteed to be smoothly discharged, the accumulation of the soil is effectively avoided, the device is suitable for multi-stage screening of the mixture of the cyperus esculentus and the soil blocks, the cyperus esculentus is finally separated on the lower layer screen plate.

3. The transmission arm is arranged at the front ends of the upper vibrating screen and the lower vibrating screen, the transmission arm pushes the upper vibrating screen and the lower vibrating screen to vibrate simultaneously through the vibrating arm, the energy consumption is greatly reduced, the vibrating force does not need to be transmitted through the upper vibrating screen body, and the service life of the vibrating screen is prolonged.

4. The conveying directions of the upper vibrating screen and the lower vibrating screen are opposite, and the vibrating forces are offset, so that the stability of the whole machine is greatly improved, the separation length is prolonged, and the net yield, the separation efficiency and the unit area harvesting efficiency are improved.

In a word, the utility model discloses novel structure is unique, and the complete machine design is firm reliable, and the transmission is reasonable, and easy operation carries out mechanical type quick screening to the cyperus bean, can direct application and cyperus bean harvester, makes it collect excavate the hack, the garrulous root, the separation, the screening, retrieve multiple functions as an organic whole, is suitable for the results of high efficiency cyperus bean to it is convenient to remove, and the popularization prospect is big, is the innovation on the cyperus bean harvester, has good society and economic benefits.

Claims (8)

1. A double-layer vibrating screen for a cyperus esculentus harvester comprises a frame (1) and is characterized in that the frame (1) is provided with an upper-layer vibrating screen, an auger-type soil throwing and breaking device and a lower-layer vibrating screen respectively, the upper-layer vibrating screen comprises an upper-layer screen plate (14), the upper-layer screen plate (14) is a vibrating conveying structure formed by a small screen hole section (14a) positioned on the side of a feeding end and a large screen hole section (14b) positioned on the side of a discharging end, a first screen hole (144) used for separating small-particle soil blocks and enabling a mixture of cyperus esculentus and residual soil blocks to be conveyed forwards is arranged on the small screen hole section (14a), and a second screen hole (145) used for separating a mixture of cyperus esculentus and larger-particle soil blocks and enabling the residual soil blocks to be conveyed forwards is arranged on the large screen hole section (14 b);

the lower-layer vibrating screen is a double-layer vibrating conveying structure consisting of a soil crushing conveying plate (18) and a lower-layer screen plate (19) which are arranged alternately from top to bottom, the bottom of the soil crushing conveying plate (18) is provided with a closed bottom plate (181) which is used for conveying soil blocks separated from small screen hole sections of the upper-layer screen plate forwards and finally falls into the ground, and the lower-layer screen plate (19) is provided with a third screen hole (194) which is used for separating the soil blocks and enabling cyperus esculentus to continue to convey forwards;

the feeding end of the upper-layer sieve plate is connected with the discharging end of the lifting conveying device (8), and the discharging end of the upper-layer sieve plate is longer than the lower-layer sieve plate and extends out of the rear end of the rack to form a first soil block discharging and backfilling structure;

the crushed soil conveying plate (18) is positioned right below the small sieve hole section (14a) of the upper sieve plate, the discharge end of the crushed soil conveying plate is longer than that of the lower sieve plate and extends out of the rear end of the frame to form a second soil block discharging and backfilling structure;

the auger type soil throwing and breaking device comprises a shell (174), wherein a shell feeding hole (17a) communicated with an inner cavity of the shell (174) is formed in the upper part of the shell (174), the shell feeding hole (17a) is positioned right below the starting end of the large sieve pore section (14b), a shell discharging hole (17b) which is communicated with the inside and the outside is formed in the side wall of the shell (174), the bottom surface of the shell where the shell discharging hole (17b) is positioned is inclined upwards from the inner cavity of the shell towards the direction of the shell discharging hole to form a discharging guide plate (175), the inner cavity of the shell (174) is rotatably connected with a shifting plate rotating shaft (171) which is arranged along the length direction of the inner cavity, and a shifting plate (173) which is used for shifting materials upwards from the shell discharging; a diversion collision plate (20) is fixed on the frame along the discharging direction of the shell feeding hole (17 a).

2. The double-deck vibrating screen for a cyperus esculentus harvester according to claim 1, characterized in that the deflector impact plate (20) comprises a top plate (201) for breaking up the clods and a deflector plate (202) for guiding the material into the feed end of the lower screen deck (19).

3. The double-layer vibrating screen for the cyperus esculentus harvester according to claim 1, characterized in that a first hanging wall (11) is hinged between two sides of an upper screen plate where the small screen hole section (14a) is located and a rack at the top, a second hanging wall (25) is hinged between two sides of an upper screen plate where the large screen hole section is located and the rack at the top, a vibrating arm (10) is mounted on the first hanging wall (11), an eccentric wheel (9) driven by an engine is mounted on the rack (1), an eccentric block is mounted on the eccentric wheel (9), one end of the vibrating arm (10) is hinged with the eccentric block, and the other end of the vibrating arm is hinged with the first hanging wall (11), so that a vibrating type conveying structure of the upper screen plate is formed;

the soil crushing conveying plate (18) and the lower-layer sieve plate (19) are connected together in an upper-lower interval mode through a plurality of groups of connecting plates (23) on the side surfaces, each group of connecting plates (23) comprises two bilaterally symmetrical connecting plates, a group of bilaterally symmetrical transmission arms (13) are arranged on a rack between the upper-layer vibrating screen and the lower-layer vibrating screen, two ends of each transmission arm (13) extend upwards and downwards respectively, the middle part of each transmission arm (13) is rotatably connected with the rack through a pin shaft (13a), a hinged driving arm (12) is arranged on a first hanging wall (11), one end of each driving arm (12) is hinged with the first hanging wall, the other end of each driving arm is hinged with the upper end of the corresponding side transmission arm (13), the lower end of each transmission arm (13) is hinged with the connecting plate closest to the discharge end of the lower-layer sieve plate, hinged second hanging arms (26) are arranged on the other connecting plates, one, the other end is hinged with the frame to form a vibrating conveying structure of the soil crushing conveying plate and the lower layer sieve plate.

4. The double-deck vibrating screen for a cyperus esculentus harvester according to claim 1, characterized in that the aperture of the first screen aperture (144) is 6-8mm and the aperture of the second screen aperture (145) is 20-25 mm; the aperture of the third sieve hole (194) is 6-8 mm.

5. The double-deck vibrating screen for a cyperus esculentus harvester according to claim 1, characterized in that the end of the lower screen deck (19) is fixed with a baffle (191) which protrudes upwards and is located outside the deflector.

6. The double-deck vibrating screen for a cyperus esculentus harvester according to claim 1, characterized in that a lifting conveyor (8) and a transverse conveying vibrating screen (24) are arranged on the frame, the discharge end of the lifting conveyor (8) is connected with the feed end of the upper vibrating screen, and the discharge end of the lower vibrating screen is connected with the feed end of the transverse conveying vibrating screen (24).

7. The double-deck vibrating screen for a cyperus esculentus harvester according to claim 1, characterized in that an engine (4) for powering the upper vibrating screen, the auger-type soil throwing and breaking device and the lower vibrating screen is arranged on the frame.

8. The double-layer vibrating screen for the cyperus esculentus harvester according to claim 1, characterized in that a fan (15) is fixed on the frame above the upper-layer screen plate (14), an air inlet of the fan (15) is opposite to the conveying surface of the upper-layer screen plate (14), and an air blowing guide plate (21) which extends towards the rear end of the frame and extends out of the rear end of the frame is arranged on the frame where an air outlet of the fan (15) is located.

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