CN210726627U

CN210726627U - Almond shell breaking and kernel size grading device

Info

Publication number: CN210726627U
Application number: CN201921659359.4U
Authority: CN
Inventors: 张佳; 陶彦辉; 王宏; 黄勇; 王飞; 黄艳; 马文涛; 李川江
Original assignee: Xinjiang Institute of Engineering
Current assignee: Xinjiang Institute of Engineering
Priority date: 2019-10-01
Filing date: 2019-10-01
Publication date: 2020-06-12
Anticipated expiration: 2029-10-01

Abstract

The utility model belongs to the technical field of agricultural machinery, in particular to a almond shell breaking and kernel size grading device, which comprises a primary shell breaking mechanism, wherein the primary shell breaking mechanism is arranged on a shell breaking rack and is used for preliminarily breaking shells of the almond; the secondary shell breaking machine is arranged below a discharge port of the primary shell breaking mechanism and is used for receiving the badam primarily broken by the primary shell breaking mechanism and secondarily breaking shells of badam with different sizes; and the shell and kernel separation and classification mechanism is arranged below the secondary crushing mechanism, receives the shell and kernel mixed material crushed by the secondary crushing mechanism, separates the shell and kernel and classifies the kernel size. The utility model discloses once only accomplish broken shell, shell benevolence separation and the hierarchical multinomial operation of kernel size, this project organization is simple, and the operating efficiency is high, has reduced artifical intensity of labour.

Description

Almond shell breaking and kernel size grading device

Technical Field

The utility model relates to the technical field of agricultural machinery, especially, relate to a almond broken shell and kernel size grading plant.

Background

The badam is one of four major fruits in the world, the large-scale production of the badam in China is mainly concentrated in the karsch and field areas in Xinjiang, the badam is extremely high in nutritional value, is an rare nourishing good product and is called 'cherry tomato'. The annual output of the badam in Xinjiang area can reach more than ten thousand tons, the badam can be not only a leisure food for people, but also be processed into a badam beverage, and the badam beverage can bring hundreds of millions of yuan of economic income for Xinjiang every year.

The crust breaking of the badam is one of the key links in the processing of the badam. The existing mechanical shell breaking machine for the badam has a single shell breaking mode, has poor shell breaking effect on badam with too large or too small diameter, and is easy to have phenomena of kernel breakage and the like due to the occurrence of larger extrusion force.

Some almond shell breaking machines are also known in the art, such as chinese patent application No.: 201520566873.9, discloses a badam crust breaking device, the main principle is: at first put into the feeder hopper with almonds, the motor rotates and drives the feed roller and rotate, thereby bring into the conveyer belt with almonds, the cutter begins work this moment, cut open almonds, then the tooth form roller effect makes almonds kernel break away from the casing, this in-process, can produce some broken shells, the one-level bobbing machine starts this moment, under the effect of one-level bobbing machine, most broken shells can fall into the broken shell and collect the in situ, the kernel can enter into out the hopper this moment, because it has certain inclination to go out the hopper, bottom through-hole and second grade bobbing machine's combined action down, the broken sediment that dopes in the kernel can fall into in the broken sediment collecting vat from the through-hole. The almonds shell breaking machine with the structure has low shell breaking efficiency, and the crushing effect is general due to different sizes of the almonds.

Chinese patent application No.: 201610104822.3, discloses a high-efficient multi-functional badam rejuvenator, the leading principle is: the almond falls into the clearance of broken shell drive roll and broken shell driven roller through the feed inlet, and two broken shell wheels pass through the difference in speed, with the broken shell of almond, fall into the shale shaker through the grid clearance and carry out the shell benevolence separation, and this structure is broken the shell and is carried out the shell benevolence separation with all big or small almond many times through 3 broken shell devices of group, and broken shell mode is single, and broken shell effect is general, does not possess the big or small hierarchical function of almond in addition.

Chinese patent application No.: 201710065904.6, discloses a combined almond hull breaking and hull and kernel separating machine, which has the following main principles: the vibration feeder sends the almonds into the first-stage shell breaking device through vibrating evenly, and the first-stage shell breaking device breaks the shells of the almonds in an extrusion mode, then conveys the almonds of the shells to the second-stage shell breaking device, and the second-stage shell breaking device rubs the unseparated almonds after being broken, so that the shell separation purpose is further achieved. And separating the almond shells and the almond kernels after the shells are broken through an air inlet pipe of a negative pressure fan. In the structure, in the primary shell breaking device, the driving shell breaking roller and the driven shell breaking roller rotate in the same direction, the rotating speed is the same, the shell breaking effect is common, and the nuts are easily crushed by the rigid extrusion mode.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's not enough, adapt to reality needs, provide a structural design is novel, realize having the almond broken shell of almond broken shell, shell benevolence separation and the size of the kernel grading plant of function.

In order to realize the utility model discloses a purpose, the utility model discloses the technical scheme who adopts does:

designing a size grading device for the almond shells and nuts, which comprises a primary shell breaking mechanism, wherein the primary shell breaking mechanism is arranged on a shell breaking rack and is used for primarily breaking the almonds; the secondary shell breaking machine is arranged below a discharge port of the primary shell breaking mechanism and is used for receiving the badam primarily broken by the primary shell breaking mechanism and secondarily breaking shells of badam with different sizes; and the shell and kernel separation and classification mechanism is arranged below the secondary crushing mechanism, receives the shell and kernel mixed material crushed by the secondary crushing mechanism, separates the shell and kernel and classifies the kernel size.

Preferably, the primary crushing mechanism comprises a crushing roller, and the crushing roller can rotate along the central axis of the crushing roller; a crushing roller is axially arranged in the crushing roller barrel and is positioned at the bottom of the crushing roller barrel, the crushing roller can rotate along the central axis of the crushing roller, and the rotating directions of the crushing roller and the crushing roller are opposite.

Preferably, the crushing roller comprises two annular connecting plates arranged in parallel, and a plurality of crushing rods arranged between the two connecting plates at equal intervals on the circumference, an annular gear for driving the two connecting plates to rotate is arranged on the outer side of one connecting plate, each crushing rod comprises a connecting rod and a crushing plate connected with the connecting rod, the cross section of each crushing plate is of an arc-shaped structure, and the inner arc surfaces of the crushing plates face the central axis of the crushing roller.

Preferably, the crushing roller comprises a roller shaft on which a plurality of extension plates are circumferentially equally spaced and vertically outwardly extended, and crushing strips are provided at ends of the extension plates, the crushing strips being made of an elastic material.

Preferably, 3 back shafts are equally arranged on the outer circumference of the crushing roller, two ends of each back shaft are respectively provided with a back bearing II, two annular connecting plates of the crushing roller are respectively matched and connected with the two back bearings II, two mounting bearings are further arranged on the outer sides of the two back bearings II, each mounting bearing is a bearing with a seat, and the back shafts are arranged on the shell breaking rack through the mounting bearings arranged at two ends of the back shafts.

Preferably, two ends of the roll shaft are arranged on the shell breaking machine frame through a bearing with a seat, and the position of the roll shaft can be adjusted through the bearing with the seat; the two ends of the roll shaft are respectively provided with a belt pulley I and a belt pulley II in a matching way, and the belt pulley I and the belt pulley II are respectively positioned at the two sides of the shell breaking rack; still set up a transmission shaft in broken roller one side, the transmission shaft passes through the belt seat bearing and installs in the frame, and a belt pulley III and a pinion are installed in the cooperation respectively at the both ends of transmission shaft, the pinion is connected with the ring gear cooperation on the broken roller, belt pulley III and belt pulley II pass through belt drive and are connected, still are provided with a motor I in broken shell frame, and the motor passes through driving pulley and is connected with I transmission of epaxial belt pulley of roller.

Preferably, second grade shell breaking mechanism includes a fixed cylinder, a unsteady section of thick bamboo and squeeze roll, unsteady section of thick bamboo sets up in the fixed cylinder, and with fixed cylinder elastic connection, vertically set up a squeeze roll in the unsteady section of thick bamboo, the squeeze roll is with unsteady section of thick bamboo relative rotation, the squeeze roll includes the awl roll body, the awl roll body includes cone and lower cone be provided with the spiral strip down on the cone, the tapering of lower cone is less than the tapering of unsteady section of thick bamboo.

Preferably, shell benevolence separation and grading plant includes the separation frame be provided with a separation sieve section of thick bamboo through I slope of support bearing in the separation frame, a separation sieve section of thick bamboo feed inlet links to each other through the discharge gate of lower blanking plate with the second grade shell breaking machine well fixed cylinder, a separation sieve section of thick bamboo includes mounting panel I, mounting panel II and a plurality of separation poles between mounting panel I and the mounting panel II, the diameter of separation pole is the axial and subtracts progressively, and the one end that the separation pole diameter is big is located a separation sieve section of thick bamboo top.

Preferably, the shell and kernel separating and classifying mechanism further comprises a fan, and an air outlet of the fan is located on the outer side of the mounting plate II below the separating screen cylinder and faces the inside of the separating screen cylinder.

Preferably, the crusher further comprises a feed hopper, and a discharge port of the feed hopper extends into the crushing roller.

Compared with the prior art, the utility model discloses the technological effect who possesses does: the utility model discloses a set up one-level mechanism and second grade mechanism of breaking shells, carry out preliminary broken shell, secondary broken shell to almonds, simultaneously, the crushing roller of one-level mechanism of breaking shells is hit the almonds and is beaten and extrude, can be broken with harder shell, and second grade mechanism of breaking shells can be with the whole broken shells of the almonds of equidimension not, and it is effectual to break the shell, and the phenomenon of damage can not appear in the kernel. And the shell and kernel separation after the shell breaking is carried out through the shell and kernel separation and classification mechanism, the shell breaking, the shell and kernel separation and the kernel size classification can be completed at one time according to the size of the almond kernel, the design structure is simple, the operation efficiency is high, and the manual labor intensity is reduced.

Drawings

Fig. 1, fig. 3 and fig. 4 are schematic overall structural diagrams of three viewing angles according to the present invention;

FIG. 2 is a front view of the overall structure of the present invention;

FIG. 5 is a schematic structural view of a primary shell breaking mechanism of the present invention;

FIG. 6 is a schematic structural view of a crushing roller according to the present invention;

FIG. 7 is a schematic view of the crushing rod of the present invention;

FIG. 8 is a schematic view of the crushing roller of the present invention;

FIG. 9 is a schematic view of the connecting structure between the crushing roller and the frame;

FIG. 10 is a schematic structural view of a secondary shell breaking mechanism of the present invention;

FIG. 11 is a schematic structural view of a squeeze roll according to the present invention;

FIG. 12 is a schematic structural view of a separating screen drum according to the present invention;

fig. 13 is a schematic view of the supporting structure of the middle separating screen cylinder of the present invention.

In the figure: 1. a feed hopper; 2. a shell breaking machine frame; 3. a first-stage shell breaking mechanism; 4. a housing; 5. a feeding port; 6. a secondary shell breaking mechanism; 7. a motor I; 8. a blanking sliding plate; 9. a shell and kernel separation and classification mechanism; 10. a motor II; 11. separating the frame; 12. a fan; 13. a support shaft; 14. a bevel gear reducer; a UCF bearing; a drive shaft; 17. a crushing roller; 18 pinion gears; 19. crushing the roller; 20. a belt pulley III; 21. a support bearing I; 191. a connecting plate; 192. a ring gear; 193. a breaking bar; 1931. a connecting rod; 1932. a breaker plate; 601. a squeeze roll; 602. a float drum; 603. a spring; 604. a fixed cylinder; 71. a driving pulley; 901. a separating lever; 902. a mounting plate I; 903. a connecting shaft; 904. mounting a plate II; 6011. a drive shaft; 6012. a conical roller body; 6013. a helical strip; 171. a roll shaft; 172. an extension plate; 173. breaking the strips; 174. a belt pulley I; 175. a belt pulley II; 131. a support bearing II; 132. mounting a bearing; 1201. and (7) air outlet.

Detailed Description

In order to make the objects and advantages of the present invention more apparent, the present invention will be described in detail with reference to the following embodiments. It is to be understood that the following text is only intended to describe one or several particular embodiments of the invention, and does not strictly limit the scope of the claims specifically claimed.

The specific features of the almond shell breaking and kernel size separation are detailed below:

see fig. 1-4. The almond shell breaking and kernel size grading device comprises a primary shell breaking mechanism 3, wherein the primary shell breaking mechanism 3 is arranged on a shell breaking rack 2 and is used for primarily breaking shells of the almond; the secondary shell breaking mechanism 6 is arranged below a discharge port of the primary shell breaking mechanism 3 and used for receiving the almonds primarily broken by the primary shell breaking mechanism 3 and secondarily breaking shells of the almonds with different sizes; and the shell and kernel separating and grading mechanism 9 is arranged below the secondary crushing mechanism and used for receiving the shell and kernel mixed material crushed by the secondary crushing mechanism 6, separating the shell and kernel and grading the kernel size. The utility model discloses a to the preliminary broken shell of almonds, secondary broken shell, can be with the whole broken shells of almonds of equidimension not, broken shell is effectual to, through shell benevolence separation and the separation of the almonds shell and the kernel after 9 will breaking the shell, classify according to almonds kernel size, once only accomplish broken shell, shell benevolence separation and the hierarchical multinomial operation of kernel size, the operating efficiency is high, has reduced artifical intensity of labour.

In the design, as shown in fig. 5, the primary crushing mechanism 3 comprises a crushing roller 19, and the crushing roller 19 can rotate along the central axis thereof; a crushing roller 17 is axially arranged inside the crushing roller cylinder, the crushing roller 17 is positioned at the bottom of the crushing roller cylinder, the crushing roller 17 can rotate along the central axis of the crushing roller, and the rotation direction of the crushing roller 17 is opposite to that of the crushing roller cylinder. Through above structure, wait that the almonds of crust breaking get into broken roller 19, get into gradually between crushing roller 17 and the broken roller, crushing roller 17 hits the almonds and beats and extrude, carries out preliminary crust breaking with almonds.

Further, as shown in fig. 6 to 7, the crushing roller 19 comprises two annular connecting plates 191 arranged in parallel, and a plurality of crushing rods 193 arranged between the two connecting plates 191 in an equally-divided manner, a ring gear 192 for driving the crushing rods to rotate is arranged outside one of the connecting plates 191, the crushing rods 193 comprise connecting rods 1931 and crushing plates 1932 connected with the connecting rods 1931, the cross sections of the crushing plates 1932 are arc-shaped structures, the inner arc surfaces of the crushing plates 1932 face the central axis of the crushing roller 19, and the structures are beneficial to forming a larger-range extrusion surface between the crushing strips 173 of the crushing roller 17, so that crust breaking can be performed easily on the crust. Further, since the diameter of the badam is generally over 12mm, it is preferable that the gap interval between the adjacent crushing bars 193 is 8 to 12 mm.

Further, as shown in fig. 8, the crushing roller 17 includes a roller shaft 171, a plurality of extension plates 172 are provided on the roller shaft 171 to be equally circumferentially divided and vertically extended outward, and crushing strips 173 are provided at ends of the extension plates 172, the crushing strips 173 being made of an elastic material. The further breaker bars 173 may be made of a hard rubber material to avoid a rigid impact on the almonds, which would result in a high impact force and damage to the almonds' kernels.

The specific structure that enables the crushing roller 19 to rotate along its central axis is: the outer circumference of the crushing roller 19 is equally divided into 3 support shafts 13, two ends of each support shaft 13 are respectively provided with a support bearing II 131, two annular connecting plates 191 of the crushing roller are respectively matched and connected with the two support bearings II 131, two mounting bearings 132 are further arranged on the outer sides of the support bearings II 131, the mounting bearings 132 are bearings with seats, and the support shafts are arranged on the shell breaking machine frame 2 through the mounting bearings 132 arranged at the two ends of the support shafts.

Wherein, both ends of the roll shaft 171 are mounted on the shell breaking machine frame 2 through bearings with seats, and the position of the roll shaft 171 can be adjusted through the bearings with seats; the two ends of the roller shaft 171 are respectively provided with a belt pulley I174 and a belt pulley II 175 in a matching way, and the belt pulley I174 and the belt pulley II 175 are respectively positioned at the two sides of the shell breaking machine frame 2. In this design, the position of the roller shaft 171 can be adjusted to adjust the distance between the crushing roller and the crushing roller 19, thereby achieving a good crushing effect. Further, when the crushing roller and the crushing roller 19 work in a matched mode, the distance between the crushing strips 173 and the inner arc surface of the crushing plate 1932 is 9-12 mm. This spacing allows for crust breaking of a large portion of the size of the almonds without damaging the kernels.

Furthermore, a transmission shaft 16 is further arranged on one side of the crushing roller 19, the transmission shaft 16 is installed on the rack through a bearing with a seat, a belt pulley III 20 and a pinion 18 are installed at two ends of the transmission shaft 16 in a matched mode respectively, the pinion 18 is connected with a ring gear 192 on the crushing roller 19 in a matched mode, and the belt pulley III 20 is connected with a belt pulley II 175 through a belt in a transmission mode.

Furthermore, still be provided with a motor I7 on broken shell frame 2, the motor passes through driving pulley 71 and is connected with the belt pulley I174 on the roller 171 transmission, and belt pulley I174 drives the crushing roller rotation, and simultaneously, coaxial belt pulley II 175 rotates, and belt pulley II 175 drives belt pulley III 20 rotatory, and a pinion 18 coaxial with belt pulley III 20 rotates, and pinion 18 cooperates with ring gear 192 to drive crushing roller 19 rotatory, through above structural design, crushing roller and crushing roller rotation direction are opposite.

Further, a shell 4 and a feed opening 5 connected with the shell 4 are arranged below the crushing roller.

Further, the secondary shell breaking mechanism 6 includes a fixed cylinder 604, a floating cylinder 602 and a squeeze roller 601, the floating cylinder 602 is disposed in the fixed cylinder 604 and elastically connected to the fixed cylinder 604, preferably, the floating cylinder 602 is connected to the fixed cylinder 604 through a plurality of springs 603, the squeeze roller 601 is vertically disposed in the floating cylinder 602, the squeeze roller 601 and the floating cylinder 602 rotate relatively, the squeeze roller 601 includes a conical roller 6012, the conical roller 6012 includes an upper cone and a lower cone, a spiral strip 6013 is disposed on the lower cone, the taper of the lower cone is smaller than the taper of the floating cylinder 602, and the radius of the bottom of the floating cylinder 602 is 6-10 mm larger than the radius of the bottom of the lower cone. Further, the squeeze roll 601 further comprises a driving shaft 6011 connected with the conical roll body 6012, the driving shaft 6011 is connected with the shell breaking machine frame 2 through a UCF bearing 15, and a driving pulley is further disposed at an outer end of the driving shaft 6011. In this design, the armeniaca material of preliminary broken shell gets into in floating section of thick bamboo 602, rotary motion is made to squeeze roll 601, spiral 6013 on the squeeze roll 601 extrudees the armeniaca, rub, because the clearance between squeeze roll 601 and the floating section of thick bamboo 602 diminishes gradually, can realize breaking the shell to the armeniaca of equidimension not, in addition, because floating section of thick bamboo 602 and the elastic connection of a fixed cylinder 604, when the armeniaca received great extrusion force, floating section of thick bamboo 602 can absorb great extrusion force because elastic connection, avoid the kernel damage phenomenon to appear because of great extrusion force in the armeniaca.

Further, a bevel gear reducer 14 is further provided on one side of the fixed cylinder 604, the motor i 7 is connected to an input shaft pulley of the bevel gear reducer 14 through a belt transmission manner, and an output shaft pulley of the bevel gear reducer 14 is connected to a driving pulley of the driving shaft 6011 of the squeeze roller 601 through a belt transmission manner.

Further, shell and kernel separating and classifying mechanism 9 includes separating frame 11, a separating screen section of thick bamboo is provided with in the slope through support bearing I21 on separating frame 11, and a separating screen section of thick bamboo can rotate along its central axis promptly, and a separating screen section of thick bamboo feed inlet links to each other with the discharge gate of fixed cylinder 604 in second grade shell breaking mechanism 6 through lower flitch, a separating screen section of thick bamboo includes mounting panel I902, mounting panel II 904 and a plurality of separator bar 901 between mounting panel I902 and mounting panel II 904, the diameter of separator bar 901 is the axial degressive, and the one end that the separator bar 901 diameter is big is located the separating screen section of thick bamboo top. In the design, the almond shells and the kernels after secondary shell breaking enter the obliquely arranged separation screen drum, the separation screen drum rotates, the almond shells can fall off from gaps between the upper ends of the separation rods 901, the diameters of the kernels are larger than those of the gaps between the separation rods 901 at the upper ends, the kernels slide down along the separation screen drum due to gravity, the gaps between the separation rods 901 are gradually increased, and the kernels fall off from the gaps between the separation rods 901 from small to large, so that the structure is simple, and the separation effect is remarkable.

In order to enable the separating screen drum to rotate at a constant speed, one side of the separating screen drum is further provided with an electric motor II 10, the electric motor II 10 is fixedly installed on the separating rack 11, the center of the outer side of the installation plate II 904 is further provided with a connecting shaft 903, an output shaft of the electric motor II 10 is connected with the connecting shaft 903 in a belt transmission mode, and the electric motor II 10 drives the separating screen drum to rotate.

Further, the shell and kernel separating and grading mechanism 9 further comprises a fan 12, and an air outlet 1201 of the fan 12 is located on the outer side of the mounting plate ii 904 below the separating screen cylinder and faces the inside of the separating screen cylinder. In this design, fan 12 evenly blows in gas in to a separation sieve section of thick bamboo, almonds shell and kernel after the secondary broken shell get into the separation sieve section of thick bamboo that the slope set up, because almonds shell is lighter than the kernel weight, and some almonds shell can be followed a separation sieve section of thick bamboo upper end and blown out, and some almonds shell then can be in a separation sieve section of thick bamboo top position, along with a separation sieve section of thick bamboo constantly rotates, and almonds shell then falls down from the gap between a separation sieve section of thick bamboo separator 901, has had this structure, and the separation effect of almonds shell and kernel separation is better.

Further, still include feeder hopper 1, the discharge gate of feeder hopper 1 extends to in crushing roller 19.

The utility model discloses a theory of operation and process: putting a badam material to be shelled into a feed hopper 1, turning on a motor I7, a motor II 10 and a fan power switch, enabling the badam material to enter a crushing roller, enabling the badam to gradually enter a space between a crushing roller and a crushing roller along with the rotation of the crushing roller and the crushing roller, beating and extruding the badam by the crushing roller, and performing primary shell breaking on the badam; the badam materials after primary shell breaking fall from the gap between the breaking rods 193 in the breaking roller, enter the floating barrel 602 of the secondary shell breaking mechanism along with the discharge hole of the shell 4 below the breaking roller, the extrusion roller 601 rotates, the spiral strips 6013 on the extrusion roller 601 extrude and knead the badam, the badam shells with different sizes can be broken as the gap between the extrusion roller 601 and the floating barrel 602 gradually becomes smaller, the badam shells and kernels after secondary shell breaking enter the obliquely arranged separation sieve barrel along with the blanking sliding plate 8, the separation sieve barrel rotates, the badam shells fall from the gap between the upper ends of the separation rods 901, the diameters of the kernels are larger than the gap between the separation rods 901 at the upper ends, the badam kernels slide down along with the separation sieve barrel due to gravity, the gap between the separation rods 901 gradually increases, the badam kernels fall from the gap between the separation rods 901 as small as large, meanwhile, air is uniformly blown into the separating screen cylinder from an air outlet 1201 of the fan, and as the almond shell is lighter than nuts, part of the almond shell can be blown out from the upper end of the separating screen cylinder, and part of the almond shell can be positioned above the separating screen cylinder, and along with the continuous rotation of the separating screen cylinder, the almond shell falls down from gaps among separating rods 901 of the separating screen cylinder, so that the shell breaking, shell and kernel separation and nut size classification operations of the almond are completed.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a almond broken shell and kernel size grading plant which characterized in that includes: the primary shell breaking mechanism is arranged on the shell breaking rack and is used for primarily breaking the shells of the badam; the secondary shell breaking machine is arranged below a discharge port of the primary shell breaking mechanism and is used for receiving the badam primarily broken by the primary shell breaking mechanism and secondarily breaking shells of badam with different sizes; and the shell and kernel separation and classification mechanism is arranged below the secondary crushing mechanism, receives the shell and kernel mixed material crushed by the secondary crushing mechanism, separates the shell and kernel and classifies the kernel size.

2. The almond crust-breaking and kernel size grading device of claim 1, wherein the primary breaking mechanism comprises a crushing roller rotatable along a central axis thereof; a crushing roller is axially arranged in the crushing roller barrel and is positioned at the bottom of the crushing roller barrel, the crushing roller can rotate along the central axis of the crushing roller, and the rotating directions of the crushing roller and the crushing roller are opposite.

3. The almond hull breaking and kernel size grading device of claim 2, wherein said crushing roller comprises two parallel annular connecting plates and a plurality of crushing rods equally circumferentially disposed between the two connecting plates, wherein an annular gear for driving the connecting plates to rotate is disposed on the outer side of one of the connecting plates, the crushing rods comprise connecting rods and crushing plates connected with the connecting rods, the cross sections of the crushing plates are arc-shaped, and the inner arc surfaces of the crushing plates face the central axis of the crushing roller.

4. The almond crust-breaking and kernel size grading device of claim 3, wherein the crushing roller comprises a roller shaft on which a plurality of extension plates are equally circumferentially spaced and extend vertically outwardly, with crushing strips being provided at the ends of the extension plates, the crushing strips being made of an elastic material.

5. The almond shell breaking and kernel size grading device as claimed in claim 4, wherein 3 support shafts are equally arranged on the outer circumference of the crushing roller, two ends of each support shaft are respectively provided with a support bearing II, two annular connecting plates of the crushing roller are respectively connected with the two support bearings II, two mounting bearings are further arranged on the outer sides of the two support bearings II, each mounting bearing is a bearing with a seat, and the support shafts are arranged on the shell breaking machine frame through the mounting bearings arranged at the two ends of the support shafts.

6. The almond shell-breaking and kernel size grading device of claim 5, wherein both ends of the roll shaft are mounted on the shell-breaking frame through a bearing with a seat, and the position of the roll shaft is adjustable through the bearing with a seat; the two ends of the roll shaft are respectively provided with a belt pulley I and a belt pulley II in a matching way, and the belt pulley I and the belt pulley II are respectively positioned at the two sides of the shell breaking rack; still set up a transmission shaft in broken roller one side, the transmission shaft passes through the belt seat bearing and installs in the frame, and a belt pulley III and a pinion are installed in the cooperation respectively at the both ends of transmission shaft, the pinion is connected with the ring gear cooperation on the broken roller, belt pulley III and belt pulley II pass through belt drive and are connected, still are provided with a motor I in broken shell frame, and the motor passes through driving pulley and is connected with I transmission of epaxial belt pulley of roller.

7. The almond hull breaking and kernel size grading device according to claim 1 or 2, wherein the secondary hull breaking mechanism comprises a fixed cylinder, a floating cylinder and a squeezing roller, the floating cylinder is arranged in the fixed cylinder and is elastically connected with the fixed cylinder, the squeezing roller is vertically arranged in the floating cylinder and relatively rotates with the floating cylinder, the squeezing roller comprises a cone roller body, the cone roller body comprises an upper cone and a lower cone, a spiral strip is arranged on the lower cone, and the taper of the lower cone is smaller than that of the floating cylinder.

8. The almond hull breaking and kernel size grading device according to claim 7, wherein the hull and kernel separating and grading mechanism comprises a separating frame, a separating screen drum is obliquely arranged on the separating frame through a supporting bearing I, a feed inlet of the separating screen drum is connected with a discharge outlet of a fixed drum in the secondary hull breaking mechanism through a lower sliding plate, the separating screen drum comprises a mounting plate I, a mounting plate II and a plurality of separating rods between the mounting plate I and the mounting plate II, the diameters of the separating rods are reduced in an axial direction, and one end of the separating rod with the larger diameter is positioned above the separating screen drum.

9. The almond hull breaking and kernel size grading device of claim 8, wherein said shell and kernel separating and grading mechanism further comprises a fan, the air outlet of said fan is located outside the mounting plate II below the separating screen cylinder and faces the inside of the separating screen cylinder.

10. The almond hull breaking and kernel size grading device of claim 1, further comprising a feed hopper, wherein a discharge port of said feed hopper extends into the crushing drum.