CN106516795A

CN106516795A - Self-discharging double-body granary with ventilation and heat exchange systems

Info

Publication number: CN106516795A
Application number: CN201611269146.1A
Authority: CN
Inventors: 申俊
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-11-27
Filing date: 2016-11-27
Publication date: 2017-03-22
Also published as: CN106941891A; CN106613023A; CN107046956A; CN106665006A; CN106941892A; CN106688474A; CN106941893A; CN106508307A; CN106717656A; CN106688473A

Abstract

The invention discloses a self-discharging double-body granary with ventilation and heat exchange systems. The self-discharging double-body granary comprises a double-body warehouse and a grain discharging device. The double-body warehouse is provided with a first warehouse body and a second warehouse body. The ventilation and heat exchange systems are arranged in the first warehouse body and the second warehouse body correspondingly. The grain discharging device comprises a box body, a first auger, a second auger and a driving device, wherein the box body is provided with a first grain discharging cavity and a second grain discharging cavity; the first auger is used for discharging stored grains in the first grain discharging cavity; the second auger is used for discharging stored grains in the second grain discharging cavity; and the driving device is used for driving the first auger and the second auger to rotate. The first auger comprises a first rotating shaft, a first spiral plate and a first driven gear. The second auger comprises a second rotating shaft, a second spiral plate and a second driven gear. The driving device comprises a driving motor and a clutch linkage device. The clutch linkage device comprises a frame body, a transmission shaft, a clutch transmission gear, a belt pulley and a horizontal movement limiting piece. The self-discharging double-body granary with the ventilation and heat exchange systems is compact and reasonable in structure.

Description

A kind of self-unloading binary silo with ventilation heat exchange system

Technical field

The invention belongs to barn structure design field, and in particular to a kind of self-unloading binary with ventilation heat exchange system Silo.

Background technology

Food problem is one of current pressing issues highly visible, and China every year will as the first in the world populous nation Substantial amounts of grain is consumed, has grain country stablize healthily developing industry, national defence, service trade, science and culture cause etc.. Food problem is not only economy and livelihood issues, and development and safety problem.With the fast-developing and people of pollution-free food The continuous improvement of living standard, grain green storage technology have obtained significant progress in China.In " Chinese stored grain ecological system Under the guidance of theoretical system ", just there is deep change in the foodstuff preservation theory of China, View of Grain Storage Technoiogy is by tradition Grain storage technology develops to Green Grain Storage technology, from extensive warehousing management to the warehousing management development that becomes more meticulous.

Silo traditional at present, mostly using monolithic design, can only store a kind of grain, single function simultaneously.Also there is portion Point silo adopts catamaran design, but but causes occupation of land larger using each grain self-discharging of two sets single discharge mechanisms, relatively costly Shortcoming.It is additionally, traditional silo, using top layer heat exchange cooling more than its ventilating system, when relatively deep, area is wider for storing, difficult To carry out fast cooling cooling to internal layer storing.

The content of the invention

It is an object of the invention to provide one kind takes up room less, cost is relatively low, can carry out fast prompt drop to internal layer grain storage The self-unloading binary silo with ventilation heat exchange system of temperature.

The technical scheme for realizing the object of the invention is：A kind of self-unloading binary silo with ventilation heat exchange system, including it is double Body warehouse and discharge mechanism；Binary warehouse has the first warehouse and the second warehouse；It is characterized in that：First warehouse and the second warehouse In be equipped with a ventilation heat exchange system；Ventilation heat exchange system includes air exhauster, induced-draught fan and ventilation shaft；Ventilation shaft includes Outer ring airduct, inner ring airduct and the support bar for connecting and supporting body；Inner ring airduct is located in the airduct enclosed space of outer ring； One end of ventilation shaft is connected with air exhauster, and the other end is connected with induced-draught fan；Discharge mechanism is included with the first unloading chamber and The casing in two unloading chambers, for drawing off the first auger of the first unloading intracavity grain storage, for drawing off the second unloading intracavity grain storage Second auger, and the driving means for driving the first auger and the second auger to rotate；First unloading chamber and the first Depot Company Logical, the second unloading chamber is connected with the second warehouse；First auger includes first rotating shaft, the first spiral lamina and the first driven gear；The Two augers include the second rotating shaft, secondary spiral lamina and the second driven gear；First rotating shaft and the second rotating shaft are parallel to each other；Drive dress Put including motor and clutch linkage device；Clutch linkage device include support body, rotate arrange on support body power transmission shaft, can be The clutch driving gear moved back and forth on power transmission shaft, the belt pulley being fixedly installed on power transmission shaft and be used for spacing clutch transmission The translation locating part of gear translation；Translation locating part is provided with the guiding tooth in the teeth groove that can extend into clutch driving gear；Pass Moving axis is provided with external thread part, and the axis hole of clutch driving gear is provided with internal thread part, and clutch driving gear is screwed onto power transmission shaft On external thread part；Casing include base and and capping, be provided with dividing plate in base, dividing plate is separated into chassis interior space etc. big The first unloading chamber and the second unloading chamber；Capping is provided with the first grain-entering mouth connected with the first unloading chamber, the first unloading chamber Bottom be provided with the first grain outlet；First grain-entering mouth and the connection of the first warehouse；It is additionally provided with what is connected with the second unloading chamber in capping Second grain-entering mouth, the bottom in the second unloading chamber are provided with the second grain outlet, the second grain-entering mouth and the connection of the second warehouse.

The present invention has following positive technique effect：（1）Due to the inner ring airduct with the deep enough internal layer grain storage of energy and outward Circle airduct, effectively can be aerated cooling to internal layer grain storage, quick to cool down.（2）The more compact simplification of present configuration, structure Relatively reasonable, two augers are only driven with same motor, are compared with traditional product, are saved a motor, effectively Reduces cost.

Description of the drawings

Fig. 1 is a kind of structural representation of the first structure of the invention；

Fig. 2 is a kind of dimensional structure diagram of discharge mechanism in silo shown in Fig. 1；

Fig. 3 is a kind of explosive view of discharge mechanism shown in Fig. 2；

Fig. 4 is a kind of top view of discharge mechanism shown in Fig. 2；

Fig. 5 is the close-up schematic view in Fig. 4 at A；

Fig. 6 is a kind of dimensional structure diagram of clutch linkage device in discharge mechanism shown in Fig. 2；

Fig. 7 is a kind of half-sectional structural representation of clutch linkage device shown in Fig. 6；

Fig. 8 is a kind of dimensional structure diagram of clutch driving gear in clutch linkage device shown in Fig. 6；

Fig. 9 is a kind of dimensional structure diagram of ventilation heat exchange system in silo shown in Fig. 1；

Figure 10 is a kind of dimensional structure diagram for being in charge of body in the middle part of ventilation heat exchange system shown in Fig. 9；

Figure 11 is a kind of dimensional structure diagram of information acquiring instrument in silo shown in Fig. 1；

Figure 12 is a kind of top view of information acquiring instrument shown in Figure 11；

Figure 13 is a kind of explosive view of information acquiring instrument shown in Figure 11；

Figure 14 is a kind of explosive view that information acquiring instrument shown in Figure 11 further decomposes；

Figure 15 is a kind of sectional view of information acquiring instrument shown in Figure 11；

Figure 16 is a kind of sectional view of barrel shell in information acquiring instrument shown in Figure 11；

Figure 17 is a kind of sectional view of traveling rolling pipe in information acquiring instrument shown in Figure 11；

Figure 18 is a kind of dimensional structure diagram of clutch linkage device in second structure of the invention；

Figure 19 is a kind of dimensional structure diagram of power transmission shaft in clutch linkage device shown in Figure 18；

Figure 20 is a kind of dimensional structure diagram of clutch linkage device middle belt pulley shown in Figure 18；

Figure 21 is a kind of dimensional structure diagram of clutch driving gear in clutch linkage device shown in Figure 18.

Specific embodiment

（Embodiment 1）

Fig. 1 to Figure 17 shows the first specific embodiment of the present invention.

The present embodiment is a kind of self-unloading binary silo with ventilation heat exchange system, as shown in Fig. 1 to Fig. 8, including binary Warehouse 1 and the discharge mechanism 2 being arranged on below binary warehouse.

Binary warehouse 1 has the first warehouse 11 and the second warehouse 12 being arranged side by side, and the bottom in the first warehouse is tapered, its There is at bottom centre the first discharging opening；The bottom in the second warehouse is also tapered, has the second discharging opening at its bottom centre.This In embodiment, the bottom in binary warehouse is provided with four daggers 13, and binary warehouse is stood on the ground by four daggers.In tool In body practice, also shouldn't dagger, but binary warehouse is directly anchored on body of wall or on carrier, such as by the present embodiment For united reaper.

Discharge mechanism 2 includes casing 21, the first auger 22, the second auger 23 and twists for the first auger of drive and second The driving means 3 that dragon rotates.

Casing include base 211 and and capping 212, dividing plate 213 is provided with base, dividing plate is separated into chassis interior space Etc. the first big unloading chamber 214 and the second unloading chamber 215；Capping is provided with the first grain-entering mouth 216 connected with the first unloading chamber, The bottom in the first unloading chamber is provided with the first grain outlet 217；The second grain-entering mouth connected with the second unloading chamber is additionally provided with capping 218, the bottom in the second unloading chamber is provided with the second grain outlet 219.First grain-entering mouth and the connection of the first warehouse.

First auger includes first rotating shaft 221, the first spiral lamina 222 and the first driven gear 223；The main body of first rotating shaft It is rotatably arranged in the first unloading chamber, casing is stretched out in one end of first rotating shaft, and the first driven gear is fixedly installed on first rotating shaft The one end for stretching out casing on；First spiral lamina is fixedly installed in first rotating shaft, and the first spiral lamina is located at the first unloading chamber In.Second grain-entering mouth and the connection of the second warehouse.

Second auger includes the second rotating shaft 231, secondary spiral lamina 232 and the second driven gear 233；The main body of the second rotating shaft It is rotatably arranged in the second unloading chamber, casing is stretched out in one end of the second rotating shaft, and the second driven gear is fixedly installed on the second rotating shaft The one end for stretching out casing on；Secondary spiral lamina is fixedly installed in the second rotating shaft, and secondary spiral lamina is located at the second unloading chamber In.

First rotating shaft and the second shaft parallel are arranged, and the hand of spiral of the first spiral lamina and secondary spiral lamina is contrary.First Auger and the second auger are elapsed the grain storage in respective cavity to grain outlet by rotating push mode.

Driving means 3 include motor 31 and the clutch linkage device 4 for being provided with driving wheel 311.

As shown in Fig. 6 to Fig. 8, clutch linkage device 4 includes support body 41, the power transmission shaft 42 rotated on setting support body, fixes The belt pulley 43 being arranged on power transmission shaft, the clutch driving gear for driving the first driven gear or the rotation of the second driven gear 44 and for spacing clutch driving gear translation translation locating part 47；Power transmission shaft is provided with external thread part 421, clutch transmission The axis hole of gear is provided with internal thread part 441, and clutch driving gear is screwed onto on the external thread part of power transmission shaft, and clutch driving gear can Move back and forth along center transmission shaft axis direction on power transmission shaft external thread part；The driving wheel of motor passes through 312 band of belt Dynamic belt pulley and power transmission shaft reciprocating rotation.

In the present embodiment, translation locating part is fixed on support body, and translation locating part is provided with and can extend into clutch transmission tooth Guiding tooth 471 in the teeth groove of wheel；Translation locating part is just arranged to the middle-end of power transmission shaft external thread part.

In the present embodiment, the first driven gear is arranged on side of second driven gear away from casing so that first is driven Gear tooth and the second driven gear gear teeth are being provided with gap e along center of rotation axis direction, the clutch driving gear gear teeth The facewidth is f, and the facewidth for translating the guiding tooth of locating part is g, and 2f+g>e>f.

One end of power transmission shaft external thread part is belt pulley, and the other end is provided in the limiting block platform 422 on power transmission shaft；When from Close when travelling gear is moved to one end of power transmission shaft external thread part and abut over pulleys carried, now clutch driving gear is in first Transmission station, drives the first driven gear to rotate by clutch driving gear when power transmission shaft is rotated forward；When clutch driving gear is moved To power transmission shaft external thread part the other end when be connected on limiting block platform, now clutch driving gear in second transmission station, The second driven gear is driven to rotate by clutch driving gear when power transmission shaft is inverted.

Power transmission shaft is rotatably arranged on support body by two roller bearing seats 45, each roller bearing seat include bearing block 451, Rolling bearing 452 and the tail-hood 453 for preventing rolling bearing from coming off from bearing block.

The anticreep double nut component 46 for spacing belt pulley is additionally provided with power transmission shaft, belt pulley is fixed by key pin and set Put on power transmission shaft, the external thread part of a side and power transmission shaft of belt pulley is provided adjacent to, another side of belt pulley and anticreep Double nut component is provided adjacent to, and sliding occurs so as to prevent belt pulley relative power transmission shaft.

In the present embodiment, as clutch driving gear is moved back and forth along center transmission shaft axis direction, first is driven The guiding tooth of gear, the second driven gear, the gear teeth 442 of clutch driving gear and translation locating part, in along power transmission shaft On the direction of the parallel lines of heart axis, the guiding sliding surface 101 of arc is equipped with the two sides at its both ends, is easy to each gear teeth Move into engagement.

As described in Fig. 1, a ventilation heat exchange system 7 in the first warehouse and the second warehouse, is equipped with.

As shown in Fig. 9 and Figure 10, each ventilation heat exchange system 7 includes air exhauster 71, induced-draught fan 72 and ventilation shaft 73；Ventilation Pipeline includes outer ring airduct 731, inner ring airduct 732 and the support bar 733 for connecting and supporting body；Inner ring airduct is located at outer In circle airduct enclosed space.One end of ventilation shaft is connected with air exhauster, and the other end is connected with induced-draught fan；Taken out by this suction one Air supply mode, the wind-force of whole ventilation shaft can be caused to obtain more quickly circulating, so as to improving heat exchanging efficiency.

In the present embodiment, the top of inner ring airduct is connected with the top of outer ring airduct, the opening of inner ring BOD and suction Blower fan is connected, and the opening of outer ring BOD is connected with air exhauster.

In the present embodiment, each support bar is fixedly linked by welding manner and ventilation shaft body.

In the present embodiment, multiple array mesh 74 through body, array net on the body of ventilation shaft, are additionally provided with Hole is generally distributed on the body of outer ring airduct and inner ring airduct；This structure causes ventilation shaft realize hot friendship Change, also the gas in the body of part can be discharged in storing by array mesh, greatly reduce temperature fall time, lift cooling Efficiency.Meanwhile, if what is be passed through in ventilation shaft is activity suppression gas, such as carbon dioxide or nitrogen, or add The gas of certain ingredient, the property of can also be for carry out diseases prevention and treatment and kill insect pest to storing.

As shown in Figure 1, at least one information acquiring instrument 6 is equipped with the first warehouse and the second warehouse.

As shown in Figure 11 to Figure 17, each information acquiring instrument 6 include barrel shell 61, the master gear 62 being rotatably arranged in barrel shell, Be rotatably arranged on barrel shell four rolling pipes 63 of advancing, be fixedly installed on each pinion 64 advanced in rolling pipe outer wall, for band The driving motor 65 that dynamic master gear is rotated；Four pinions are uniformly arranged on master gear outer circumferential side, setting in a center of symmetry；Main tooth When wheel is rotated, each pinion synchronous axial system is driven.

In the present embodiment, the periphery wall of master gear is provided with driving cog 621, and internal perisporium is provided with driven tooth 622；Former galvanic electricity The quantity of machine 65 is two, and each driving motor is provided with the output gear 651 with output gear；The driven tooth of output gear and master gear Engagement adaptation；The driving cog of master gear and pinion engagement adaptation.

Spiral power plate 631 is fixed with the lumen wall of traveling rolling pipe, spiral power plate is with rolling pipe turn of advancing When dynamic, the material stirred in rolling pipe of advancing by spiral is obtained thrust and moves ahead or retreat.In the present embodiment, spiral power plate Center enclose to form a circular material path 639, when rolling pipe of advancing is advanced, grain storage is mainly from the circular material path and spiral Released in the gap between screw of power plate backward, this structure can in time to advance rolling pipe in feed smoothly to advance, in addition by In the presence of the circular material path, to the larger mobile space of grain storage advanced in rolling pipe, prevent grain storage because it is overcrowding and by spiral shell Rotation power plate is blended.

Barrel shell 61 includes the secondary cylinders 612 of main cylinder 611 and four, four secondary cylinders around main cylinder central axis into center It is symmetrical arranged；The central axis of main cylinder is also the center of rotation axis of the master gear, the center of rotation axis of each secondary cylinder It is parallel with the center of rotation axis of master gear.

Each two ends for advancing rolling pipe are equipped with the Taper Pipe portion 632 of reduced diameter as drag reduction portion, advance for reducing Resistance.

The two ends of barrel shell are respectively fixed with a coniform antidrag cap 66, and each antidrag cap is provided with a temperature sensor 67 Antidrag cap is exposed independent from the induction end of a humidity sensor 68, each temperature sensor and humidity sensor.

The first rolling bearing 633 and the second rolling bearing 634 are arranged with the outer wall of each rolling pipe of advancing, each rolling pipe of advancing Outer wall is provided with first step wall 635 and second step wall 636；

One side of barrel shell is provided with four clutch shaft bearing storage tanks 613, and four clutch shaft bearing storage tanks are located at the barrel shell end On inwall；Each first rolling bearing is embedded in a corresponding clutch shaft bearing storage tank, and the inner ring of each first rolling bearing is arranged It is fixed on one end of corresponding one rolling pipe of advancing, and the first step wall of rolling pipe of advancing is along the central axial direction pressure of the rolling pipe It is connected on the inner ring of corresponding first rolling bearing；

Another side of barrel shell is provided with four second bearing storage tanks 614, and four second bearing storage tanks are located at and expose to cylinder The shell end；Each rolling pipe of advancing is provided with male threaded joint 637；One female thread crimp being screwed onto on male threaded joint 638, be crimped on the outer ring of a corresponding second bearing, and the central axial direction of pipe is rolled the second bearing along the traveling Inner ring is crimped on the second step wall of the traveling rolling pipe；The female thread crimp blocks a corresponding second bearing simultaneously to be held Put the opening of groove.

Installing plate 615 is fixed with barrel shell, master gear is rotatably arranged on installing plate, the motor body of each driving motor Also it is fixedly installed on the installing plate.

Information acquiring instrument in the present embodiment when in use, is powered to driving motor by built-in power, driving motor band Dynamic master gear is rotated, and then synchronously four traveling rolling pipes of drive are rotated by each pinion, so as to be stored up by promotion in silo Grain and advance or retreat.

As each antidrag cap is provided with temperature sensor and humidity sensor, the information acquiring instrument in the present embodiment is being advanced In, the temperature and humidity of drill-through grain layer can be given, so as to obtain the physical message of the grain storage of different depth, and can be passed through interior Radio-cell in being placed in antidrag cap or barrel shell is transferred to user.

In concrete practice, it is also possible to powered to the information acquiring instrument in the present embodiment by cable and transmission data, tool Body is that cable is passed through behind the tip of an antidrag cap, is connected with the wiring board in antidrag cap or barrel shell.

The present embodiment can be also arranged in each coniform antidrag cap has lamplit photographic head, each coniform antidrag cap Made using transparent material so that photographic head can photograph the in good time state of grain storage, for example it was observed that go mouldy, insect bite etc. Bad phenomenon, is prevented and treated to which in time.

Due to adding information acquiring instrument, and there is locomotivity, can be to the storage of different depth diverse location in warehouse The information of grain, to obtain in good time intuitively data.

The present embodiment course of work is as follows：The first grain-entering mouths of grain storage Jing in first warehouse are entered in the first unloading passage, First auger when rotating is elapsed the grain storage in itself place cavity to the first grain outlet；Grain storage Jing second in second warehouse enters Grain mouth is entered in the second unloading passage, and the second auger when rotating is elapsed the grain storage in itself place cavity to the second grain outlet.

As shown in Figure 5, now clutch driving gear is driven station in second, and clutch driving gear is close to limiting block platform One side is connected on limiting block platform, and clutch driving gear and the engagement of the second driven gear are adapted to；Clutch driving gear now The second driven gear can be driven to be decided by the steering of power transmission shaft.For the present embodiment, if now power transmission shaft is rotated backward, So that clutch driving gear continues to be connected on limiting block platform, namely clutch driving gear now is equal to relative to power transmission shaft It is fixedly installed, therefore the second driven gear can be driven to rotate by clutch driving gear, namely drives the second auger to rotate.

If now power transmission shaft is rotated forward, as clutch driving gear is screwed onto on the external thread part of power transmission shaft, Liang Zheshi Loose fit, clutch driving gear will leave limiting block platform, move towards the direction for being close to belt pulley, now clutch transmission tooth Wheel can not drive the second driven gear to rotate again.If power transmission shaft continues to rotate forward, as the gear teeth inlay card of clutch driving gear exists In the teeth groove of the second driven gear, and the second driven gear can have certain rotary resistance, so clutch driving gear will Under the spacing anti-rotation effect of the second driven gear gear teeth, translate towards the direction for being close to belt pulley；Due to 2f+g>e>F, clutch The gear teeth of travelling gear also do not completely disengage from the teeth groove of the second driven gear, and the guiding tooth of guided in translation part will enter into clutch In the teeth groove of drive so that clutch driving gear continues translation；When the gear teeth of clutch driving gear also do not completely disengage from translation During locating part, the gear teeth of clutch driving gear have been entered in the teeth groove of the first driven gear again, due to the first driven gear With certain rotary resistance, so clutch driving gear will continue translation, until clutch driving gear is close to belt pulley One side is connected on belt pulley, namely clutch driving gear reaches first and is driven station；If hereafter power transmission shaft continues to rotate forward, from Closing travelling gear can then drive the first driven gear to rotate, namely drive the first auger to rotate.

Hereafter if power transmission shaft becomes to rotate backward, clutch driving gear cannot drive the first driven gear to rotate again, And under the first driven gear gear teeth, the spacing anti-rotation effect for being oriented to tooth and the second driven gear gear teeth of translation locating part, Clutch driving gear most moves to the second transmission station at last, and now clutch driving gear continues to drive the second driven tooth rotation again It is dynamic.

The more compact simplification of the present embodiment structure, relatively reasonable in structure, two augers are only driven with same motor, and Traditional product is compared, and saves a motor, and not only cost is relatively low, is also reduced entirety and is taken up room, is conducive to small-sized Change, especially meet carrier and install and use demand.

（Embodiment 2）

Figure 18 to Figure 21 shows second specific embodiment of the present invention.

The present embodiment and embodiment 1 are essentially identical, and difference is：As shown in Figure 18 to Figure 21, in the present embodiment A side nearer apart from belt pulley of limiting block platform, a side nearer apart from limiting block platform of belt pulley and clutch transmission The two side ends of gear are equipped with gear tooth 5, and each gear tooth is provided with and holds pushing surface 51 and spigot surface 52, and each spigot surface is cambered surface.Clutch transmission When translating towards limiting block platform direction, clutch driving gear gear tooth holds the gear tooth that pushing surface is finally connected to limiting block platform to gear Hold in pushing surface；Clutch driving gear when translating towards belt pulley direction, finally support by the pushing surface of holding of clutch driving gear gear tooth The gear tooth for being connected on belt pulley holds in pushing surface；This force way allows clutch driving gear to bear bigger stress.

Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not right The restriction of embodiments of the present invention.For those of ordinary skill in the field, may be used also on the basis of the above description To make other changes in different forms.There is no need to be exhaustive to all of embodiment.And these Belong to the present invention connotation it is extended obvious change or change still fall within protection scope of the present invention.

Claims

1. a kind of self-unloading binary silo with ventilation heat exchange system, including binary warehouse and discharge mechanism；Binary warehouse has First warehouse and the second warehouse；It is characterized in that：A ventilation heat exchange system is equipped with first warehouse and the second warehouse；Ventilation Heat-exchange system includes air exhauster, induced-draught fan and ventilation shaft；Ventilation shaft includes outer ring airduct, inner ring airduct and for connecting simultaneously Support the support bar of body；Inner ring airduct is located in the airduct enclosed space of outer ring；One end of ventilation shaft is connected with air exhauster, separately One end is connected with induced-draught fan；Discharge mechanism includes the casing with the first unloading chamber and the second unloading chamber, unloads for drawing off first First auger of grain intracavity grain storage, for drawing off the second auger of the second unloading intracavity grain storage, and for driving the first auger The driving means rotated with the second auger；First unloading chamber is connected with the first warehouse, and the second unloading chamber is connected with the second warehouse；The One auger includes first rotating shaft, the first spiral lamina and the first driven gear；Second auger include the second rotating shaft, secondary spiral lamina and Second driven gear；First rotating shaft and the second rotating shaft are parallel to each other；Driving means include motor and clutch linkage device；From Close linkage include support body, rotate arrange support body on power transmission shaft, the clutch driving gear that can be moved back and forth on power transmission shaft, The belt pulley being fixedly installed on power transmission shaft and the translation locating part for the translation of spacing clutch driving gear；Translation locating part The guiding tooth being provided with the teeth groove that can extend into clutch driving gear；Power transmission shaft is provided with external thread part, clutch driving gear Axis hole be provided with internal thread part, clutch driving gear is screwed onto on the external thread part of power transmission shaft；Casing include base and and capping, It is provided with dividing plate in base, dividing plate big the first unloading chamber and the second unloading chamber such as is separated into chassis interior space；Capping The first grain-entering mouth connected with the first unloading chamber is provided with, the bottom in the first unloading chamber is provided with the first grain outlet；First grain-entering mouth Connect with the first warehouse；The second grain-entering mouth connected with the second unloading chamber is additionally provided with capping, the bottom in the second unloading chamber is provided with Second grain outlet, the second grain-entering mouth and the connection of the second warehouse.