CN212344570U

CN212344570U - Small castor hulling cleaner

Info

Publication number: CN212344570U
Application number: CN202021424213.4U
Authority: CN
Inventors: 侯俊铭; 朱红杰; 姚恩超; 徐国发; 胡维学; 陈思宇
Original assignee: Shenyang Agricultural University
Current assignee: Shenyang Agricultural University
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2021-01-15
Anticipated expiration: 2030-07-20

Abstract

A small castor hulling cleaner belongs to the technical field of agricultural machinery. The internal drum comprises a right circular cone structure and an inverted circular cone structure I which are connected into a whole, and a gap which is gradually reduced from a feeding port to a discharging port is formed between the internal drum and the external drum; the method is characterized in that: a plurality of arc-shaped bulges are uniformly arranged on the periphery of the right circular cone structure at the upper part of the inner drum; the cleaning device is arranged below the hulling device and used for receiving a material mixture hulled at a discharge port of the hulling device, and the tail end of the cleaning device is sequentially provided with a castor shell discharge port, a castor seed discharge port and an impurity discharge port from top to bottom. According to the invention, the purpose of hulling castor-oil plants is achieved by the squeezing action between the arc-shaped bulges of the inner drum and the outer drum of the huller, so that the cleaning effect is improved, and meanwhile, the collection of materials is facilitated.

Description

Small castor hulling cleaner

Technical Field

The invention belongs to the technical field of agricultural machinery, and particularly relates to a small castor hulling cleaner.

Background

The oil content of castor seeds can reach 50 percent, the castor seeds can be used as medicine, and the extracted castor oil is important industrial oil. The husking and cleaning of the castor is an important link in combined harvest, and the husking and cleaning efficiency has important influence on the subsequent deep processing of castor seeds. Common castor bean shelling cleaning machine is mostly rice and wheat shelling cleaning machine design improvement and comes on the existing market, and the operation equipment uses inconveniently, and the suitability is poor, and the efficiency and the quality of shelling cleaning are low, and shelling in-process seed grain percentage of damage is high, can't satisfy the market demand.

Disclosure of Invention

To the technical problem who exists, provide a small-size castor bean shelling cleaning mill, it has simple structure, and the cost is lower, controls characteristics such as convenient.

The purpose of the invention is realized by the following technical scheme:

the invention relates to a small castor bean shelling and cleaning machine which comprises a rack, and a shelling device, a cleaning device and a transmission device which are arranged on the rack, wherein the shelling device comprises a roller shaft, an inner roller and an outer roller; a plurality of arc-shaped bulges are uniformly arranged on the periphery of the right circular cone structure at the upper part of the inner drum; the cleaning device is arranged below the hulling device and used for receiving a material mixture hulled at a discharge port of the hulling device, and the tail end of the cleaning device is sequentially provided with a castor shell discharge port, a castor seed discharge port and an impurity discharge port from top to bottom.

Preferably, the edge gap between adjacent arc-shaped bulges is larger than the maximum outer diameter of the castor seeds and is 1-1.5 times of the maximum outer diameter of the castor seeds.

Preferably, the outer diameter of the arc-shaped protrusion at the top of the right circular cone structure is smaller than the outer diameter of the arc-shaped protrusion at the bottom of the right circular cone structure.

Preferably, the arc-shaped bulge is a semi-spherical bulge, and the gap between the bulge vertex and the outer roller is from the feeding port to the discharging port: the maximum outer diameter of the castor capsule is decreased from 2.5 to 3.5 times to 1.8 to 2.2 times.

Preferably, the outer drum for hulling is further provided with a gap adjusting device, which comprises an upper shifting disc, a lower shifting disc and a connecting piece, wherein the upper shifting disc and the lower shifting disc are identical in structure and are annular bodies, one side of each annular body is a plane, the other side of each annular body is provided with two centrosymmetric slopes, and the upper shifting disc and the lower shifting disc are buckled to form a circular ring; the upper shifting disc is connected with the upper shelling outer roller through a connecting piece, the lower shifting disc is connected with a fixed frame on the rack, the contact surfaces of the upper shifting disc and the lower shifting disc are slope surfaces, a plurality of shifting adjusting holes are arranged on the upper shifting disc and the lower shifting disc, the adjustment of the overall height of the upper shifting disc and the lower shifting disc is realized by connecting different shifting adjusting holes, the upper shelling outer roller is driven to move up and down, and the gap between the inner roller and the upper shelling outer roller is adjusted.

Preferably, cleaning device includes pan feeding case, shale shaker, collecting vat, fan I and discharge gate, the discharge gate of shelling device is connected to the pan feeding end of pan feeding case, and the discharge end is located the last shale shaker pan feeding end of shale shaker, sets up fan I in one side of the relative discharge end of pan feeding case, and last shale shaker end at the shale shaker is equipped with castor shell discharge gate, and the end of shale shaker sets up the castor bean discharge gate down, and the shale shaker bottom is the collecting vat under, and the collecting vat end sets up the impurity export, install fan II on the lateral wall that the shale shaker is close to the pan feeding mouth.

Preferably, the bottom plate of the feeding box, the upper vibrating screen and the lower vibrating screen are both obliquely arranged, the angle gamma of the bottom plate of the feeding box, which is oblique to the horizontal plane, is 45-60 degrees, and the discharge ports of the upper vibrating screen and the lower vibrating screen are both lower than the feed ports.

Preferably, the upper vibrating screen and the lower vibrating screen are connected through a connecting plate, the edges of the upper vibrating screen and the lower vibrating screen are arranged in a slide way of the wall of the vibrating screen, a crank rocker mechanism is connected to the lower vibrating screen and connected with a motor through the crank rocker mechanism, the crank rocker mechanism is composed of a rocker, a sliding block and a sliding rod, the output shaft end of the motor is connected with one end of the rocker, the other end of the rocker is connected with the sliding block, the sliding block is connected to the sliding rod and slides along the sliding rod, one end of the sliding rod is connected to the lower vibrating screen, the other end of the sliding rod is fixed on the rack, the motor drives the rocker to rotate, the rotation is changed into linear motion through the movement of the sliding block on the motor along the sliding rod.

Preferably, the aperture of the upper vibrating screen is larger than the maximum outer diameter of the castor seeds and is 1.1-1.3 times of the maximum outer diameter of the castor seeds, and the aperture of the lower vibrating screen is smaller than the minimum outer diameter of the castor seeds.

Preferably, the transmission device comprises a motor, a first belt transmission, a second belt transmission and a bevel gear transmission, the roller shaft is connected with the bevel gear transmission, the first belt transmission is connected between the motor and the bevel gear transmission of the roller shaft, and the second belt transmission is connected between the bevel gear transmission of the roller shaft and the fan II; the bevel gear transmission comprises a transmission bevel gear II arranged on the roller shaft and a transmission bevel gear I arranged on the frame, and the transmission bevel gear II and the transmission bevel gear I are in meshing transmission; the first belt transmission is that an output belt wheel is arranged on an output shaft of a motor, a double-groove belt wheel I is arranged on a transmission bevel gear I of a drum shaft, and a belt I is sleeved in one groove of the output belt wheel and the double-groove belt wheel I; the second belt transmission is that a belt II is sleeved between the other groove of the double-groove belt wheel I and a belt wheel II arranged on a rotating shaft of the fan I.

The invention has the beneficial effects that:

1. the inner drum of the invention adopts the form of an upper cone and a lower round table, the peripheral surface of the upper cone is provided with an arc-shaped bulge structure, and the purpose of hulling the castor is achieved by the extrusion effect between the arc-shaped bulge of the inner drum and the outer drum of the huller. The cleaning device is arranged below the hulling device and is used for receiving a material mixture hulled at a discharge port of the hulling device, and a castor shell discharge port, a castor seed discharge port and an impurity discharge port are sequentially arranged at the tail end of the cleaning device from top to bottom; improve the cleaning effect and facilitate the collection of materials.

2. According to the invention, through the design of the arc-shaped convex structure, the damage to castor seeds is small during hulling, and the hulling effect is good.

3. The castor cleaning and sorting device provided by the invention adopts the double-layer sieve, the reciprocating motion of the cleaning sieve is realized by the crank rocker, the reciprocating motion distance can be adjusted by adjusting the installation position of the crank rocker, the fan is arranged on the side surface of the feeding port of the sieve body, so that materials which are not completely separated are subjected to secondary shelling under the action of air flow in the first time when entering the cleaning sieve, then the materials are separated and sorted by the reciprocating motion of the cleaning sieve, the separation of different impurities can be completed by limiting the sieve pores of the upper vibrating sieve and the lower vibrating sieve, different materials respectively reach corresponding discharge ports, the discharge ports are divided into three layers, the directions are different, the cleaning and sorting effect is improved, and the collection of the materials is convenient.

4. Compared with the existing castor bean shelling and cleaning machine, the invention has the advantages of simple shelling and cleaning process and low maintenance cost of each component.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic plan view of fig. 1.

Fig. 3 is a sectional view a-a of fig. 2.

Fig. 4 is a perspective view of fig. 2.

FIG. 5 is a schematic structural diagram of a hulling device according to the present invention.

Fig. 6 is a view illustrating up and down displacement of the gap adjusting device of the present invention.

FIG. 7 is a schematic view of the crank and rocker mechanism of the present invention.

In the figure: 1. castor seed discharge port, 2 impurity discharge port, 3 castor shell discharge port, 4 cleaning chamber, 5 machine frame, 6 fan I, 7 feeding box, 8 fixing frame, 9 hopper, 10 collecting tank, 11 drum shaft, 12 bearing seat, 13 slideway, 14 upper vibrating screen, 15 connecting plate, 16 lower vibrating screen, 17 crank rocker mechanism, 171 rocker, 172 slider, 173 sliding rod, 174 connecting block, 18 motor, 19 belt I, 20 belt wheel I, 21 belt II, 22 belt wheel II, 23 fan II, 24 bevel gear I, 25 bevel gear II, 26 lower hulling outer drum, 27 upper hulling outer drum, 28 lower shifting disc, 29 upper shifting disc, 30 inner drum, 31 right circular cone structure, 32 inverted circular table structure I, 33 inverted circular table structure II, 34 protrusion, 35 right circular table structure, 36. connecting piece, 37 displacement adjusting hole, 38 plane connecting part.

Detailed Description

The invention is described in detail below with reference to the figures and examples.

Example 1: as shown in fig. 1-3, the invention is a small castor bean husking and cleaning machine, which comprises a frame 5, and a husking device, a cleaning device and a transmission device which are arranged on the frame 5, wherein the husking device comprises a roller shaft 11, an inner roller 30 and an outer roller 27, the inner roller 30 is sleeved in the outer roller 27, the inner roller 30 comprises a right circular cone structure 31 and an inverted circular truncated cone structure i 32 which are connected into a whole, the outer diameters of the connecting parts of the right circular cone structure 31 and the inverted circular truncated cone structure i 32 are the same, a gap which is gradually reduced from a feeding port to a discharging port is formed between the inner roller and the outer roller, the roller shaft 11 penetrates through the inner roller 30, two ends of the roller shaft are respectively connected to the frame 5 through a bearing seat 12, the transmission device is connected to the roller shaft; a plurality of arc-shaped bulges 34 are uniformly arranged on the periphery of the right circular cone structure 31; the cleaning device is arranged below the hulling device and used for bearing a material mixture after hulling at a discharge port of the hulling device, the tail end of the cleaning device is sequentially provided with a castor shell discharge port 3, a castor seed discharge port 1 and an impurity discharge port 2 from top to bottom, and the cleaning device, the drum shaft and the hulling device are connected through a transmission device.

As shown in figure 3, the edge clearance of the adjacent arc-shaped protrusions 34 in the embodiment is larger than the maximum outer diameter of the castor bean and is 1.2 times of the maximum outer diameter of the castor bean.

The outer diameter of the arc-shaped protrusion at the top of the right circular cone structure 31 is smaller than that of the arc-shaped protrusion at the bottom of the right circular cone structure 31. The arc-shaped protrusion 34 is a semi-spherical protrusion. In order to make the material enter smoothly, the arc-shaped bulges 34 are arranged in 4 layers from top to bottom, and the gap between the top point of the arc-shaped bulges 34 and the outer roller from the feeding hole to the discharging hole is as follows: the maximum outer diameter of the castor capsule is decreased from 3.5 times to 2.2 times.

The clearance between the inner roller and the outer roller is gradually reduced from the feeding port to the discharging port, and specifically comprises the following steps: the maximum outer diameter of the castor capsule 4.9 times of the feeding port is decreased to 7.2 times of the maximum outer diameter of the castor seed. The side wall of the inverted frustum structure of the inner roller forms an inclination angle of 50 degrees with the horizontal plane, and the truncated cone forms an inclination angle of 50 degrees with the horizontal plane.

As shown in fig. 3 and 5, the outer drum includes a lower hulling outer drum 26 and an upper hulling outer drum 27, the upper hulling outer drum 27 has a right circular truncated cone structure 35 matching with the right conical structure 31 of the inner drum 30, the lower hulling outer drum 26 has an inverted circular truncated cone structure ii 33 matching with the inverted circular truncated cone structure i 32 of the inner drum 30, and the right circular truncated cone structure 35 and the inverted circular truncated cone structure ii 33 are connected to form an integral outer drum.

As shown in fig. 5 and 6, the upper hulling outer drum 27 is further provided with a gap adjusting device, which includes an upper displacement plate 29, a lower displacement plate 28 and a connecting member 36, the upper displacement plate 29 is connected to the upper hulling outer drum 27 through the connecting member 36, the lower displacement plate 28 is connected to the fixing frame 8 on the frame 5, contact surfaces of the upper displacement plate 29 and the lower displacement plate 28 are slope surfaces, displacement adjusting holes 37 are provided on both the upper displacement plate 29 and the lower displacement plate 28, and the upper and

lower displacement plates

29, 28 are connected to different displacement adjusting holes 37 to adjust the overall height, so as to drive the upper hulling outer drum 27 to move up and down and adjust the gap between the inner drum 30 and the upper hulling outer drum 27. The displacement adjusting holes 37 are opened in a plurality according to actual needs to adjust different gaps. In this example, the upper displacement plate 29 is provided with one displacement adjusting hole 37, the lower displacement plate 28 is provided with three displacement adjusting holes 37, and three kinds of gap adjustment are realized by connecting different displacement adjusting holes 37, so that the gap adjustment amount can be controlled to be between 4mm and 6 mm.

As shown in fig. 6, the upper and lower shifting plates have the same structure, and are annular bodies each having a plane on one side and two centrally symmetric slopes on the other side, and the two annular bodies are both provided with a plane connecting portion 38, so that a connecting gap is formed at the connecting portion, thereby facilitating gap adjustment; the upper and

lower displacement discs

29, 28 are snap-fitted to form a ring.

As shown in figure 4, the cleaning plant includes pan feeding case 7, shale shaker 4, collecting vat 38 and fan I6, the discharge gate of shelling device's inside and outside cylinder is connected to the pan feeding end of pan feeding case 7, and shelling device discharge end is located the last shale shaker 14 pan feeding end of cleaning room 4, sets up fan I6 in one side of the relative discharge end of pan feeding case 7, and under the effect of fan I6, castor bean is deviate from light castor bean hull in the mixture and can pass through the export along with the air current, carries out the one-level of mixture and cleans. The bottom of the feeding box 7 is an inclined plane of 45 degrees, and the rest mixture slides into the cleaning chamber 4 from the funnel-shaped inlet of the upper vibrating screen 14 along the inclined plane under the action of air flow and gravity. A castor shell discharge port 3 is arranged at the tail end of an upper vibrating screen 14 of the cleaning chamber 4, a castor seed discharge port 1 is arranged at the tail end of a lower vibrating screen 16, a collecting tank 10 is arranged at the bottom of the lower vibrating screen 16, and an impurity outlet 2 is arranged at the tail end of the collecting tank 10; and a fan II 23 is arranged on the side wall, close to the feeding port, of the vibrating screen 4, and the vibrating screen can work by inserting electricity with power.

The upper vibrating screen 14 and the lower vibrating screen 16 are both obliquely arranged, the material outlet end of the upper vibrating screen 14 is lower than the material inlet end, the upper vibrating screen 14 and the lower vibrating screen 16 are connected into a whole through a connecting plate 15, two layers of slideways are arranged on the screen wall, pulleys matched with the slideways are respectively arranged on the two sides of the upper vibrating screen 14 and the lower vibrating screen 16, a crank and rocker mechanism 17 is connected on the lower vibrating screen 16 and is connected with a motor 18 through the crank and rocker mechanism 17, the crank and rocker mechanism is composed of a rocker 171, a sliding block 172, a sliding rod 173 and a connecting block, the output shaft end of the motor 18 is connected with one end of the rocker 171, the other end of the rocker 171 is connected with the sliding block 172, the sliding block 172 is connected on the sliding rod 173 and slides along the sliding rod 173, one end of the sliding rod 173 is connected on the lower vibrating screen 16 through the connecting block 174, the, the rotation is changed into linear motion, and the lower vibrating screen 16 is driven to generate vibration in the reciprocating motion.

Pan feeding case 7 and clean room 4 form the cleaning system of establishing ties, castor-oil plant deviates from the mixture and accomplishes the one-level in pan feeding case 7 and clean completely in arriving clean room 4, fan II 23 is installed on the lateral wall of clean room 4, the mixture strikes on the lateral wall under the effect of air current, simultaneously under the effect of upper and lower floor's shale shaker, the castor seed grain that half breaks away from the seed case can break away from the seed case completely, different materials can stratify rapidly, the light big seed case of quality can move the castor shell discharge gate 3 of the superiors, the heavier and shape rule's seed grain of quality can see through on shale shaker 14 falls into down 16, through the ejection of compact of castor seed grain discharge gate 1. The small-sized broken shell with light weight is arranged on part of the upper vibrating screen 14, and due to the fact that the broken shell is not fully acted by the airflow, the broken shell can penetrate through the screen holes of the upper vibrating screen 14 and fall onto the lower vibrating screen 16, and the broken shell can reach the impurity outlet 2 through the screen holes under the action of the lower vibrating screen 16.

Three discharge gate of cleaning room 4 is towards three different directions respectively, mutual noninterference each other, and castor shell discharge gate 3 is the same with 1 structure of castor seed grain discharge gate, in order not to influence the impurity collection of 2 departments of impurity export, the lateral wall of cleaning room 4 is stretched out to the discharge gate, and the less of size design under the condition that can realize not the windrow does not do benefit to the collection of material. The three discharge ports form a certain inclination angle with the ground, so that the discharging is convenient.

As shown in fig. 4, the transmission device comprises a motor 18, a first belt transmission, a second belt transmission and a bevel gear transmission, the bevel gear transmission is connected to the drum shaft, the first belt transmission is connected between the motor 18 and the bevel gear transmission of the drum shaft 11, the second belt transmission is connected between the bevel gear transmission of the drum shaft 11 and a fan ii 23, the bevel gear transmission comprises a transmission bevel gear ii 25 arranged on the drum shaft 11 and a transmission bevel gear i 24 arranged on the frame, and the two are in meshing transmission; the first belt transmission is that an output belt wheel is arranged on an output shaft of a motor 18, a double-groove belt wheel I20 is arranged on a transmission bevel gear I24 of the drum shaft 11, and a belt I19 is sleeved in one groove of the output belt wheel and the double-groove belt wheel I20; the second belt transmission is characterized in that a belt II 21 is sleeved between the other groove of the double-groove belt wheel I20 and a belt wheel II 22 arranged on a rotating shaft of the fan I6; the motor 18 rotates, the first belt transmission and the second belt transmission rotate to drive the fan I6 to operate, meanwhile, the double-groove belt wheel I20 drives the transmission bevel gear I24 coaxially mounted with the double-groove belt wheel I to rotate, and the transmission bevel gear II 25 meshed with the double-groove belt wheel I to rotate, so that the roller shaft 11 is driven to rotate, and the whole device operates.

When the invention works, the motor 18 of the driving device is driven to drive the drum shaft 11 and the fan I6 to rotate, the castor capsules are added into the hopper 9 arranged above the outer drum, the castor seeds roll in the clearance between the inner drum and the outer drum by the inner drum 30 along with the rotation of the drum shaft 11, so as to achieve the aim of shelling, the arc-shaped bulge 34 increases the friction between the castor seeds, so that the castor seeds are easier to shell, the mixture of the shelled castor seeds and the castor shells enters the feeding box 7 through the discharge holes of the inner drum and the outer drum, the mixture enters the upper vibrating screen 14 of the vibrating screen 4 under the action of the fan I6, the castor shells are discharged through the castor shell discharge hole 3 under the action of the fan II 23 arranged on the side wall of the vibrating screen 4, the castor seeds are screened onto the lower vibrating screen 16 through the upper vibrating screen 14, the castor seeds are discharged and collected along the castor seed discharge hole 1 arranged at the tail end of the lower vibrating screen 16 by the vibration screen 16, the fine impurities screened off by the lower vibrating screen 16 are collected by a collecting tank 10 arranged below the lower vibrating screen 16 and discharged by an impurity discharge port 2 arranged at the tail end of the collecting tank.

Example 2: the difference between this example and example 1 is: the edge gap L1 between adjacent arc-shaped projections 34 in this example is greater than the maximum outer diameter of the castor bean and is 1.5 times the maximum outer diameter of the castor bean. In this embodiment, in order to make the material smoothly enter, the arc-shaped protrusions 34 are arranged in 5 layers from top to bottom, and the gap between the top point of the arc-shaped protrusion 34 and the outer roller from the feeding port to the discharging port is: the maximum outer diameter of the castor capsule is decreased from 2.5 times to 1.8 times. The clearance of inside and outside cylinder is reduced gradually by pan feeding mouth to discharge gate, specifically is: the maximum outer diameter of the castor capsule 4.5 times of the feeding port is decreased to 7 times of the maximum outer diameter of the castor seed. The side wall of the inverted frustum structure of the inner roller forms a 65-degree inclination angle with the horizontal plane, and the truncated cone forms a 70-degree inclination angle with the horizontal plane. The aperture of the upper vibrating screen is larger than the maximum outer diameter of the castor seeds and is 1.1 times of the maximum outer diameter of the castor seeds, and the aperture of the lower vibrating screen is smaller than the minimum outer diameter of the castor seeds.

Example 3: the difference between this example and example 1 is: the edge gap L1 between adjacent arcuate projections 34 in this example is greater than the maximum outer diameter of the castor bean and is 1 time the maximum outer diameter of the castor bean. In this embodiment, in order to make the material smoothly enter, the arc-shaped protrusions 34 are arranged in 3 layers from top to bottom, and the gap between the top point of the arc-shaped protrusion 34 and the outer roller from the feeding port to the discharging port is: the maximum outer diameter of the castor capsule is decreased from 3 times to 2 times. The clearance of inside and outside cylinder is reduced gradually by pan feeding mouth to discharge gate, specifically is: the maximum outer diameter of the castor capsule which is 3.9 times of the feeding port is decreased to 6.8 times of the maximum outer diameter of the castor seed. The side wall of the inverted frustum structure of the inner roller forms a 60-degree inclination angle with the horizontal plane, and the circular truncated cone forms a 60-degree inclination angle with the horizontal plane. The aperture of the upper vibrating screen 14 is larger than the maximum outer diameter of the castor seeds and is 1.3 times of the maximum outer diameter of the castor seeds, and the aperture of the lower vibrating screen 16 is smaller than the minimum outer diameter of the castor seeds.

It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the invention.

Claims

1. A small castor bean shelling and cleaning machine comprises a rack, and a shelling device, a cleaning device and a transmission device which are arranged on the rack, wherein the shelling device comprises a roller shaft, an inner roller and an outer roller; the method is characterized in that: a plurality of arc-shaped bulges are uniformly arranged on the periphery of the right circular cone structure at the upper part of the inner drum; the cleaning device is arranged below the hulling device and used for receiving a material mixture hulled at a discharge port of the hulling device, and the tail end of the cleaning device is sequentially provided with a castor shell discharge port, a castor seed discharge port and an impurity discharge port from top to bottom.

2. A small size castor bean husking cleaner according to claim 1, wherein: the edge gap of the adjacent arc-shaped bulges is larger than the maximum outer diameter of the castor seeds and is 1-1.5 times of the maximum outer diameter of the castor seeds.

3. A small size castor bean husking cleaner according to claim 1, wherein: the outer diameter of the arc-shaped bulge positioned at the top of the right circular cone structure is smaller than that of the arc-shaped bulge positioned at the bottom of the right circular cone structure.

4. A small size castor bean husking cleaner according to claim 1, wherein: the arc arch is a semi-spherical arch, and the clearance between the arch vertex and the outer roller is from the feeding port to the discharge port: the maximum outer diameter of the castor capsule is decreased from 2.5 to 3.5 times to 1.8 to 2.2 times.

5. A small size castor bean husking cleaner according to claim 1, wherein: the outer drum for hulling is also provided with a gap adjusting device which comprises an upper shifting disc, a lower shifting disc and a connecting piece, wherein the upper shifting disc and the lower shifting disc have the same structure and are annular bodies, one side of each annular body is a plane, the other side of each annular body is provided with two centrosymmetric slopes, and the upper shifting disc and the lower shifting disc are buckled to form a circular ring; the upper shifting disc is connected with the upper shelling outer roller through a connecting piece, the lower shifting disc is connected with a fixed frame on the rack, the contact surfaces of the upper shifting disc and the lower shifting disc are slope surfaces, a plurality of shifting adjusting holes are arranged on the upper shifting disc and the lower shifting disc, the adjustment of the overall height of the upper shifting disc and the lower shifting disc is realized by connecting different shifting adjusting holes, the upper shelling outer roller is driven to move up and down, and the gap between the inner roller and the upper shelling outer roller is adjusted.

6. A small size castor bean husking cleaner according to claim 1, wherein: cleaning plant includes pan feeding case, shale shaker, collecting vat, fan I and discharge gate, the discharge gate of shelling device is connected to the pan feeding end of pan feeding case, and the discharge end is located the last shale shaker pan feeding end of shale shaker, sets up fan I in one side of the relative discharge end of pan feeding case, and last shale shaker end at the shale shaker is equipped with castor bean shell discharge gate, and the end of shale shaker sets up the castor bean discharge gate under, and the shale shaker bottom is the collecting vat under, and the collecting vat end sets up the impurity export, install fan II on the lateral wall that the shale shaker is close to the pan feeding mouth.

7. A small size castor bean shelling and cleaning machine as claimed in claim 6, wherein: the bottom plate of the feeding box, the upper vibrating screen and the lower vibrating screen are both obliquely arranged, the angle gamma of the bottom plate of the feeding box, which is oblique to the horizontal plane, is 45-60 degrees, and the discharge port ends of the upper vibrating screen and the lower vibrating screen are both lower than the feed port ends.

8. A small size castor bean shelling and cleaning machine as claimed in claim 6, wherein: the vibrating screen comprises an upper vibrating screen, a lower vibrating screen, a motor, a crank rocker mechanism, a motor, a sliding rod, a connecting plate, a connecting rod, a motor, a sliding rod, a motor, a rocker, a sliding rod, a rack and a motor.

9. A small size castor bean shelling and cleaning machine as claimed in claim 6, wherein: the aperture of the upper vibrating screen is larger than the maximum outer diameter of the castor seeds and is 1.1-1.3 times of the maximum outer diameter of the castor seeds, and the aperture of the lower vibrating screen is smaller than the minimum outer diameter of the castor seeds.

10. A small size castor bean husking cleaner according to claim 1, wherein: the transmission device comprises a motor, a first belt transmission, a second belt transmission and a bevel gear transmission, the bevel gear transmission is connected to the drum shaft, the first belt transmission is connected between the motor and the bevel gear transmission of the drum shaft, and the second belt transmission is connected between the bevel gear transmission of the drum shaft and the fan II; the bevel gear transmission comprises a transmission bevel gear II arranged on the roller shaft and a transmission bevel gear I arranged on the frame, and the transmission bevel gear II and the transmission bevel gear I are in meshing transmission; the first belt transmission is that an output belt wheel is arranged on an output shaft of a motor, a double-groove belt wheel I is arranged on a transmission bevel gear I of a drum shaft, and a belt I is sleeved in one groove of the output belt wheel and the double-groove belt wheel I; the second belt transmission is that a belt II is sleeved between the other groove of the double-groove belt wheel I and a belt wheel II arranged on a rotating shaft of the fan I.