CN219785625U

CN219785625U - Graded screening device for peanuts

Info

Publication number: CN219785625U
Application number: CN202321185902.8U
Authority: CN
Inventors: 王国琦; 李红双; 王征; 温通暄; 刘静; 王家晖; 刘毅
Original assignee: Shenyang Aerospace University
Current assignee: Shenyang Aerospace University
Priority date: 2023-05-16
Filing date: 2023-05-16
Publication date: 2023-10-03
Anticipated expiration: 2033-05-16

Abstract

The peanut classifying and screening device comprises a stock bin mechanism, a transferring mechanism, a screening mechanism and a packing and weighing mechanism; the bin mechanism is used for storing ungraded peanuts, and has a vibration anti-blocking function during discharging; the transferring mechanism adopts an electric drive type conveying belt with an adjustable inclination angle and is used for conveying the unclassified peanuts from the storage bin mechanism to the screening mechanism; the screening mechanism can realize primary screening, secondary screening and wind screening, the primary screening adopts a roller form and the size of the orifice of the screen is adjustable, the primary screening can separate large-size peanuts from small-size peanuts and sundries, the secondary screening adopts an inclined flat screen form and the size of the orifice of the screen is adjustable, the secondary screening can separate small-size peanuts from sundries, the wind screening can separate large-size peanuts from branches and leaves, the large-size peanuts directly fall into a packaging bag after wind screening, the packaging bag is placed in a packing weighing mechanism, and the packaging bag filled with the peanuts can be transferred after weighing at a rated value, so that subsequent sealing and transferring warehouse entry are facilitated.

Description

Graded screening device for peanuts

Technical Field

The utility model belongs to the technical field of agricultural machinery, and particularly relates to a peanut classifying and screening device.

Background

When peanuts are collected, peanuts with different sizes are mixed together, and meanwhile, a large amount of sundries such as branches, leaves and soil particles are mixed in the peanuts, so that the quality of the peanuts is improved, the peanuts are not only required to be classified according to the sizes, but also the sundries such as the branches, the leaves and the soil particles mixed in the peanuts are required to be removed.

In the past, the classification of peanuts is completed manually, which not only wastes time and labor, but also has low classification efficiency. In order to improve the peanut classification efficiency, automatic machines for classifying peanuts are continuously developed, wherein cylindrical sieves, planar vibrating sieves and the like are most common.

However, the existing screening machine for classifying peanuts has a single function, only one screening can be completed at a time, and small-size peanuts in undersize still can be combined with sundries such as small-size branches and leaves, soil particles and the like, so that one screening is required, large-size peanuts in oversize still can be mixed with residual large-size branches and leaves, and one screening is required for the large-size peanuts to improve the quality of the large-size peanuts. That is, the whole peanut classification requires at least three separate siftings, which, although improving efficiency over manual classification, is not ideal in practice.

Disclosure of Invention

Aiming at the problems existing in the prior art, the utility model provides the peanut classifying and screening device which can finish primary screening, small-size peanut screening and large-size peanut screening in the same device, does not need human intervention in the classifying process, greatly reduces labor cost and greatly improves peanut classifying efficiency.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the peanut classifying and screening device comprises a stock bin mechanism, a transferring mechanism, a screening mechanism and a packing and weighing mechanism; the storage bin mechanism is used for storing the ungraded peanuts, the transfer mechanism is used for transporting the ungraded peanuts, and the storage bin mechanism is connected with the screening mechanism through the transfer mechanism; the packing weighing mechanism is located at a discharge hole of the screening mechanism.

The bin mechanism comprises a bin body, a material bearing plate, a vibrating motor, a bin gate steering engine, a bin gate rocker arm, a bin gate connecting rod and a bin gate guide rail; the top of the bin body is of an open structure, and the opening at the top of the bin body is used as a feed inlet of the ungraded peanut; the material bearing plate is arranged below the material inlet of the bin body and is obliquely arranged, and a material outlet is formed in the bin body above the lower end side of the material bearing plate; the vibrating motor is arranged on the lower surface of the material bearing plate; the bin gate is positioned at the inner side of the bin body discharge hole, the bin gate guide rails are positioned at the left side and the right side of the bin gate, and the bin gate only has the freedom degree of up-down movement; the bin gate steering engine is arranged above the bin body discharge hole, a power output shaft of the bin gate steering engine is fixedly connected with one end of a bin gate rocker arm, the other end of the bin gate rocker arm is hinged with one end of a bin gate connecting rod, and the other end of the bin gate connecting rod is hinged with the top of the bin gate.

The transfer mechanism comprises a transmission belt bracket, a transmission belt driving roller, a transmission belt driven roller, a transmission belt motor, a transmission belt tensioning wheel, an electric push rod of the tensioning wheel and an inclination angle adjusting supporting leg of the transmission belt bracket; the conveying belt support is obliquely arranged, the lower end of the conveying belt support is a feeding end, and the upper end of the conveying belt support is a discharging end; the conveying belt driving roller is arranged at the feeding end of the conveying belt bracket, and the conveying belt driven roller is arranged at the discharging end of the conveying belt bracket; the transmission belt is in transmission connection between a transmission belt driving roller and a transmission belt driven roller; the transmission belt tensioning wheel is positioned below the middle part of the transmission belt support, the electric tensioning wheel push rod is arranged on the transmission belt support at the side of the transmission belt tensioning wheel, and the electric tensioning wheel push rod is connected with the transmission belt tensioning wheel; the transmission belt motor is connected with the transmission belt driving roller; the transmission belt support inclination adjustment support leg is located below the transmission belt support, the upper end of the transmission belt support inclination adjustment support leg is hinged to the transmission belt support, and the lower end of the transmission belt support inclination adjustment support leg is supported on the ground.

The screening mechanism comprises a frame, a primary screening component, a secondary screening component, a net-shaped discharging slideway, a fan and a primary screening driving component; the frame is provided with universal travelling wheels; the primary screening assemblies are positioned at the top of the rack, and the secondary screening assemblies are positioned on the rack below the primary screening assemblies; the reticular discharging slideway is positioned on the frame below the discharging end of the primary screening component; the fan is positioned on the frame behind the net-shaped discharging slideway; the primary screening driving assembly is positioned on the frame at the side of the net-shaped discharging slideway and is in transmission connection with the primary screening assembly; the net-shaped discharging slideway and the fan form a wind power screening component.

The primary screening component comprises a cylindrical outer layer screen, a screen supporting wheel, a discharge end cover, a cylindrical inner layer screen steering engine, a cylindrical inner layer screen rocker arm, a cylindrical inner layer screen connecting rod, a cylindrical inner layer screen switching frame and a cylindrical outer layer screen switching frame; the cylindrical outer screen is obliquely arranged, the high end of the cylindrical outer screen is lapped on the frame through the screen supporting wheel, the low end of the cylindrical outer screen is inserted into the discharge end cover, the discharge end cover is fixed on the frame, and the discharge port of the discharge end cover is communicated with the feed port of the reticular discharge slideway; the cylindrical outer layer screen is coaxially sleeved outside the cylindrical inner layer screen, the cylindrical inner layer screen is in sliding contact with the surface of the cylindrical outer layer screen, and the cylindrical inner layer screen only has axial sliding freedom degree relative to the cylindrical outer layer screen; the cylindrical inner layer screen transfer frame is fixedly arranged at the bottom end cylinder opening of the cylindrical inner layer screen; the cylindrical outer layer screen adapting frame is fixedly arranged at the bottom end cylinder opening of the cylindrical outer layer screen; the steering engine of the cylinder type inner layer screen cloth is fixedly arranged on the switching frame of the cylinder type outer layer screen cloth, one end of the rocker arm of the cylinder type inner layer screen cloth is fixedly connected with the power output shaft of the steering engine of the cylinder type inner layer screen cloth, the other end of the rocker arm of the cylinder type inner layer screen cloth is hinged with one end of the connecting rod of the cylinder type inner layer screen cloth, and the other end of the connecting rod of the cylinder type inner layer screen cloth is hinged with the switching frame of the cylinder type inner layer screen cloth.

The secondary screening component comprises a plate-type upper screen, a plate-type lower screen steering engine, a plate-type lower screen rocker arm and a plate-type lower screen connecting rod; the plate type upper screen is obliquely arranged and fixedly connected with the frame; the plate-type lower screen is attached to the lower surface of the plate-type upper screen in parallel, and the plate-type lower screen has only sliding freedom degree relative to the plate-type upper screen; the plate-type lower screen steering engine is fixedly arranged on the frame below the plate-type lower screen, a power output shaft of the plate-type lower screen steering engine is fixedly connected with one end of the plate-type lower screen rocker arm, the other end of the plate-type lower screen rocker arm is hinged with one end of the plate-type lower screen connecting rod, and the other end of the plate-type lower screen connecting rod is hinged with the plate-type lower screen.

The primary screening driving assembly comprises a primary screening motor, a driving belt pulley, a belt, a driven belt pulley and a speed reducer; the primary screening motor and the speed reducer are fixedly arranged on the frame, the driving belt pulley is fixedly arranged on a motor shaft of the primary screening motor, the driven belt pulley is fixedly arranged on a power input shaft of the speed reducer, and the driven belt pulley is in transmission connection with the driving belt pulley through a belt; and a power output shaft of the speed reducer is fixedly connected with the cylindrical outer-layer screen adapting frame.

The packing weighing mechanism comprises a packing rack, a weighing device, a material package outward conveying belt driving roller, a material package outward conveying belt driven roller and a material package outward conveying belt motor; the packing rack is positioned on the ground below the discharge port of the net-shaped discharge slideway; the material package outward conveying belt driving roller is positioned at the discharging end of the packaging rack, the material package outward conveying belt driven roller is positioned at the feeding end of the packaging rack, and the material package outward conveying belt driven roller is in transmission connection with the material package outward conveying belt driving roller through the material package outward conveying belt; the motor of the material package outward conveying belt is positioned on a packing rack at the side of the driving roller of the material package outward conveying belt; the weighing device is fixedly arranged on the packing rack, the weighing device and the driven roller wheel of the material package outward conveying belt are arranged in parallel, and the material package outward conveying belt on the weighing device is used for placing peanut packaging bags.

The utility model has the beneficial effects that:

the peanut classifying and screening device can finish primary screening, small-size peanut screening and large-size peanut screening in the same device, manual intervention is not needed in the classifying process, the labor cost is greatly reduced, and the peanut classifying efficiency is also greatly improved.

Drawings

FIG. 1 is a schematic diagram of a peanut classifying and screening device according to the present utility model;

FIG. 2 is a schematic view (partially cut away) of the bin mechanism of the utility model;

FIG. 3 is a schematic view of a transfer mechanism according to the present utility model;

FIG. 4 is a schematic view of a screening mechanism according to the present utility model;

FIG. 5 is a schematic illustration of the primary screen assemblies and primary screen drive assemblies (portions) of the present utility model;

FIG. 6 is a schematic view of the combination of a secondary screen assembly and frame (section) of the present utility model;

FIG. 7 is a schematic illustration of the primary screen assembly (section), mesh discharge chute, fan and frame (section) combination of the present utility model;

FIG. 8 is a schematic view of the combination of the primary screen drive assembly and frame (section) of the present utility model;

FIG. 9 is a schematic view of the packing weighing mechanism of the present utility model;

in the figure, an I-bin mechanism, an II-transfer mechanism, an III-screening mechanism, an IV-packing weighing mechanism, a 1-bin body, a 2-material bearing plate, a 3-vibration motor, a 4-bin gate, a 5-bin gate steering engine, a 6-bin gate rocker arm, a 7-bin gate connecting rod, an 8-bin gate guide rail, a 9-conveyor belt bracket, a 10-conveyor belt, an 11-conveyor belt motor, a 12-tensioning wheel electric push rod, a 13-conveyor belt bracket inclination angle adjusting support leg, a 14-frame, a 15-net-shaped discharging slideway, a 16-universal travelling wheel, a 17-cylinder-shaped outer screen, a 18-screen supporting wheel, a 19-discharging end cover, a 20-cylinder-shaped inner screen and a 21-cylinder-shaped inner screen steering engine, the device comprises a 22-barrel-type inner screen rocker arm, a 23-barrel-type inner screen connecting rod, a 24-barrel-type inner screen transfer frame, a 25-barrel-type outer screen transfer frame, a 26-plate-type upper screen, a 27-plate-type lower screen, a 28-plate-type lower screen steering engine, a 29-plate-type lower screen rocker arm, a 30-plate-type lower screen connecting rod, a 31-fan, a 32-primary screen motor, a 33-driving belt pulley, a 34-belt, a 35-driven belt pulley, a 36-speed reducer, a 37-packing rack, a 38-weighing device, a 39-bag outward conveying belt, a 40-bag outward conveying belt driving roller, a 41-bag outward conveying belt driven roller and a 42-bag outward conveying belt motor.

Detailed Description

The utility model will now be described in further detail with reference to the drawings and to specific examples.

As shown in fig. 1-9, the peanut classifying and screening device comprises a feed bin mechanism I, a transfer mechanism II, a screening mechanism III and a packing and weighing mechanism IV; the storage bin mechanism I is used for storing the ungraded peanuts, the transfer mechanism II is used for transporting the ungraded peanuts, and the storage bin mechanism I is connected with the screening mechanism III through the transfer mechanism II; and the packing weighing mechanism IV is positioned at the discharge port of the screening mechanism III.

The bin mechanism I comprises a bin body 1, a material bearing plate 2, a vibrating motor 3, a bin gate 4, a bin gate steering engine 5, a bin gate rocker arm 6, a bin gate connecting rod 7 and a bin gate guide rail 8; the top of the bin body 1 is of an open structure, and the top of the bin body 1 is open and serves as a feed inlet of unfractionated peanuts; the material bearing plate 2 is positioned below the feed inlet of the bin body 1, the material bearing plate 2 is obliquely arranged, and a discharge hole is formed in the bin body 1 above the lower end side of the material bearing plate 2; the vibrating motor 3 is arranged on the lower surface of the material bearing plate 2; the bin gate 4 is positioned at the inner side of the discharge hole of the bin body 1, the bin gate guide rails 8 are positioned at the left side and the right side of the bin gate 4, and the bin gate 4 only has the freedom degree of up-down movement; the bin gate steering engine 5 is arranged above the discharge hole of the bin body 1, a power output shaft of the bin gate steering engine 5 is fixedly connected with one end of the bin gate rocker arm 6, the other end of the bin gate rocker arm 6 is hinged with one end of the bin gate connecting rod 7, and the other end of the bin gate connecting rod 7 is hinged with the top of the bin gate 4.

The transfer mechanism II comprises a transmission belt bracket 9, a transmission belt 10, a transmission belt driving roller, a transmission belt driven roller, a transmission belt motor 11, a transmission belt tensioning wheel, a tensioning wheel electric push rod 12 and a transmission belt bracket inclination angle adjusting supporting leg 13; the conveying belt support 9 is obliquely arranged, the lower end of the conveying belt support 9 is a feeding end, and the upper end of the conveying belt support 9 is a discharging end; the conveying belt driving roller is arranged at the feeding end of the conveying belt bracket 9, and the conveying belt driven roller is arranged at the discharging end of the conveying belt bracket 9; the transmission belt 10 is in transmission connection between a transmission belt driving roller and a transmission belt driven roller; the transmission belt tensioning wheel is positioned below the middle part of the transmission belt bracket 9, the tension wheel electric push rod 12 is arranged on the transmission belt bracket 9 at the side of the transmission belt tensioning wheel, and the tension wheel electric push rod 12 is connected with the transmission belt tensioning wheel; the transmission belt motor 11 is arranged on the transmission belt bracket 9 at the side of the transmission belt driving roller, and the transmission belt motor 11 is connected with the transmission belt driving roller; the transmission belt support inclination angle adjusting support leg 13 is located below the transmission belt support 9, the upper end of the transmission belt support inclination angle adjusting support leg 13 is hinged with the transmission belt support 9, and the lower end of the transmission belt support inclination angle adjusting support leg 13 is supported on the ground.

The screening mechanism III comprises a frame 14, a primary screening component, a secondary screening component, a net-shaped discharging slideway 15, a fan 31 and a primary screening driving component; the frame 14 is provided with universal travelling wheels 16; the primary screen assemblies are located on top of the frame 14 and the secondary screen assemblies are located on the frame 14 below the primary screen assemblies; the reticular discharge chute 15 is positioned on the frame 14 below the discharge end of the primary screening assembly; the fan 31 is positioned on the frame 14 behind the net-shaped discharging slideway 15; the primary screening driving assembly is positioned on the frame 14 at the side of the net-shaped discharging slideway 15 and is in transmission connection with the primary screening assembly; the mesh discharge chute 15 and fan 31 form a wind screen assembly.

The primary screening assembly comprises a cylindrical outer screen 17, a screen supporting wheel 18, a discharge end cover 19, a cylindrical inner screen 20, a cylindrical inner screen steering engine 21, a cylindrical inner screen rocker arm 22, a cylindrical inner screen connecting rod 23, a cylindrical inner screen switching frame 24 and a cylindrical outer screen switching frame 25; the cylindrical outer screen 17 is obliquely arranged, the high end of the cylindrical outer screen 17 is lapped on the frame 14 through a screen supporting wheel 18, the low end of the cylindrical outer screen 17 is inserted into a discharge end cover 19, the discharge end cover 19 is fixed on the frame 14, and a discharge port of the discharge end cover 19 is communicated with a feed port of the reticular discharge slideway 15; the cylindrical outer screen 17 is coaxially sleeved outside the cylindrical inner screen 20, the cylindrical inner screen 20 is in sliding contact with the surface of the cylindrical outer screen 17, and the cylindrical inner screen 20 has only axial sliding freedom relative to the cylindrical outer screen 17; the cylindrical inner screen adapting frame 24 is fixedly arranged at the bottom end cylinder mouth of the cylindrical inner screen 20; the cylindrical outer screen adapting frame 25 is fixedly arranged at the bottom end cylinder opening of the cylindrical outer screen 17; the cylinder type inner layer screen steering engine 21 is fixedly arranged on the cylinder type outer layer screen transfer frame 25, one end of the cylinder type inner layer screen rocker arm 22 is fixedly connected with a power output shaft of the cylinder type inner layer screen steering engine 21, the other end of the cylinder type inner layer screen rocker arm 22 is hinged with one end of the cylinder type inner layer screen connecting rod 23, and the other end of the cylinder type inner layer screen connecting rod 23 is hinged with the cylinder type inner layer screen transfer frame 24.

The secondary screening assembly comprises a plate type upper screen 26, a plate type lower screen 27, a plate type lower screen steering engine 28, a plate type lower screen rocker 29 and a plate type lower screen connecting rod 30; the plate-type upper screen 26 is obliquely arranged, and the plate-type upper screen 26 is fixedly connected with the frame 14; the plate-type lower screen 27 is attached to the lower surface of the plate-type upper screen 26 in parallel, and the plate-type lower screen 27 has only a sliding degree of freedom relative to the plate-type upper screen 26; the plate-type lower screen steering engine 28 is fixedly arranged on the frame 14 below the plate-type lower screen 27, a power output shaft of the plate-type lower screen steering engine 28 is fixedly connected with one end of the plate-type lower screen rocker 29, the other end of the plate-type lower screen rocker 29 is hinged with one end of the plate-type lower screen connecting rod 30, and the other end of the plate-type lower screen connecting rod 30 is hinged with the plate-type lower screen 27.

The primary screening driving assembly comprises a primary screening motor 32, a driving belt pulley 33, a belt 34, a driven belt pulley 35 and a speed reducer 36; the primary screening motor 32 and the speed reducer 36 are fixedly arranged on the frame 14, the driving belt pulley 33 is fixedly arranged on a motor shaft of the primary screening motor 32, the driven belt pulley 35 is fixedly arranged on a power input shaft of the speed reducer 36, and the driven belt pulley 35 is in transmission connection with the driving belt pulley 33 through a belt 34; the power output shaft of the speed reducer 36 is fixedly connected with the cylindrical outer screen adapting frame 25.

The packing weighing mechanism IV comprises a packing rack 37, a weighing device 38, a material package outward conveying belt 39, a material package outward conveying belt driving roller 40, a material package outward conveying belt driven roller 41 and a material package outward conveying belt motor 42; the packing rack 37 is positioned on the ground obliquely below the discharge port of the net-shaped discharge slideway 15; the material package outward conveying belt driving roller 40 is positioned at the discharge end of the packing rack 37, the material package outward conveying belt driven roller 41 is positioned at the feed end of the packing rack 37, and the material package outward conveying belt driven roller 41 is in transmission connection with the material package outward conveying belt driving roller 40 through the material package outward conveying belt 39; the package outward conveying belt motor 42 is positioned on the packing rack 37 at the side of the package outward conveying belt driving roller 40; the weighing device 38 is fixedly arranged on the packing rack 37, the weighing device 38 and the driven roller 41 of the package outward conveying belt are arranged in parallel, and the package outward conveying belt 39 on the weighing device 38 is used for placing peanut packaging bags.

The following describes a one-time use procedure of the present utility model with reference to the accompanying drawings:

before classifying and screening peanuts, the size of the openings of the screen is adjusted according to the size specification of the peanuts actually harvested. For the primary screening component, the cylindrical inner screen steering engine 21 is manually controlled, so that the power output shaft of the cylindrical inner screen steering engine 21 rotates slowly to drive the cylindrical inner screen rocker arm 22 to swing slowly, and then the cylindrical inner screen 20 is driven to axially slide in the cylindrical outer screen 17 through the cylindrical inner screen connecting rod 23, and along with the movement of the cylindrical inner screen 20, the mesh staggered overlapping area between the cylindrical inner screen 20 and the cylindrical outer screen 17 is changed, and the larger the mesh staggered overlapping area is, the larger the size of undersize is, and the smaller the undersize is.

Similarly, the plate-type lower screen steering engine 28 is manually controlled, so that the power output shaft of the plate-type lower screen steering engine 28 rotates slowly to drive the plate-type lower screen rocker 29 to swing slowly, and then the plate-type lower screen 27 is driven to translate along the plate-type upper screen 26 through the plate-type lower screen connecting rod 30, and along with the movement of the plate-type lower screen 27, the mesh staggered overlapping area between the plate-type upper screen 26 and the plate-type lower screen 27 is changed, and the larger the mesh staggered overlapping area is, the larger the size of the undersize is, and the smaller the size is, otherwise.

When the two-stage screen aperture size adjustment is completed, the belt motor 11, the fan 31 and the preliminary screening motor 32 are started, respectively. After the belt motor 11 is started, the belt 10 can be driven to run. After the primary screening motor 32 is started, the primary screening motor drives the cylindrical outer screen 17 to rotate sequentially through the driving belt pulley 33, the belt 34, the driven belt pulley 35, the speed reducer 36 and the cylindrical outer screen switching frame 25, and the cylindrical inner screen 20 synchronously rotates along with the cylindrical outer screen 17. Subsequently, an empty bag is placed over the weighing device 38 with the mouth of the bag in an open position.

After the preparation work is finished, the harvested peanuts are manually poured into the bin body 1 and fall on the material bearing plate 2 to be piled up, after the bin body 1 is filled with the harvested peanuts, the bin gate steering engine 5 is started to drive the bin gate rocker arm 6 to swing, and then the bin gate 4 is driven to move upwards along the bin gate guide rail 8 through the bin gate connecting rod 7, so that the bin gate 4 is opened.

Along with the opening of door 4, under the action of gravity, the peanut in the storehouse body 1 can be through the discharge gate discharge and fall into on the moving conveyer belt 10, in the blowing in-process of the storehouse body 1, in order to avoid the discharge gate to take place to block up, can start the vibrating motor 3 of holding flitch 2 below, by vibrating motor 3 to holding flitch 2 output vibration, can guarantee that the peanut in the storehouse body 1 discharges through the discharge gate smoothly.

When the peanuts in the bin body 1 fall onto the running conveyor belt 10, the peanuts are lifted upwards by the conveyor belt 10 and are sent into the cylindrical inner screen 20 in a throwing mode at the discharge end obliquely above, and along with the rotation of the cylindrical outer screen 17 and the cylindrical inner screen 20, the small-size peanuts, soil particles and small-size branches and leaves can fall into the plate-type upper screen 26 as undersize through the screen, while the undersize is large-size peanuts and large-size branches and leaves.

The second screening is performed on the small-sized peanuts, soil particles and small-sized branches and leaves falling on the plate-type upper screen 26, the soil particles and small-sized branches and leaves can fall as undersize directly onto the ground below the plate-type lower screen 27, and the soil particles and small-sized branches and leaves can be returned to the field as fertilizer after being manually collected. Small-sized peanuts as oversize products roll down the upper plate screen 26 onto the ground in front of the upper plate screen 26 and are collected manually and then put in storage.

For large size peanuts and large size branches and leaves left in the inner cylindrical screen 20, the outer cylindrical screen 17 and the inner cylindrical screen 20 slide down as they rotate until they drop into the discharge end cap 19 and drop into the lower mesh discharge chute 15 through the discharge port of the discharge end cap 19.

When the large-size peanuts and the large-size branches and leaves fall onto the net-shaped discharge slide way 15, under the action of the air flow output by the fan 31, the large-size branches and leaves with lighter mass can be blown off the net-shaped discharge slide way 15 by the air flow and fall onto the ground at a distance, and can be used as fertilizer to return to the field after being collected manually.

The larger peanut size, which is heavier, continues to roll down until it falls into the lower bag, and as more peanut is stored in the bag, the pack outfeed conveyor motor 42 is activated to run the pack outfeed conveyor 39 and rapidly transfer the bag containing peanut to another belt conveyor as the load of the bag is detected by the scale 38 to a preset value. At the same time, a new empty bag is manually and quickly replenished onto the weigh scale 38, and peanut collection continues. For the immediately preceding package bag with peanut that transfers just away, after the transportation of conveyer belt, can remove to follow-up package bag and seal the workstation earlier, after accomplishing to seal, continue to be transferred to the warehouse by conveyer belt and store.

The embodiments are not intended to limit the scope of the utility model, but rather are intended to cover all equivalent implementations or modifications that can be made without departing from the scope of the utility model.

Claims

1. The utility model provides a peanut classified screening device which characterized in that: comprises a stock bin mechanism, a transfer mechanism, a screening mechanism and a packing weighing mechanism; the storage bin mechanism is used for storing the ungraded peanuts, the transfer mechanism is used for transporting the ungraded peanuts, and the storage bin mechanism is connected with the screening mechanism through the transfer mechanism; the packing weighing mechanism is located at a discharge hole of the screening mechanism.

2. The peanut classifying and screening device according to claim 1, wherein: the bin mechanism comprises a bin body, a material bearing plate, a vibrating motor, a bin gate steering engine, a bin gate rocker arm, a bin gate connecting rod and a bin gate guide rail; the top of the bin body is of an open structure, and the opening at the top of the bin body is used as a feed inlet of the ungraded peanut; the material bearing plate is arranged below the material inlet of the bin body and is obliquely arranged, and a material outlet is formed in the bin body above the lower end side of the material bearing plate; the vibrating motor is arranged on the lower surface of the material bearing plate; the bin gate is positioned at the inner side of the bin body discharge hole, the bin gate guide rails are positioned at the left side and the right side of the bin gate, and the bin gate only has the freedom degree of up-down movement; the bin gate steering engine is arranged above the bin body discharge hole, a power output shaft of the bin gate steering engine is fixedly connected with one end of a bin gate rocker arm, the other end of the bin gate rocker arm is hinged with one end of a bin gate connecting rod, and the other end of the bin gate connecting rod is hinged with the top of the bin gate.

3. The peanut classifying and screening device according to claim 1, wherein: the transfer mechanism comprises a transmission belt bracket, a transmission belt driving roller, a transmission belt driven roller, a transmission belt motor, a transmission belt tensioning wheel, an electric push rod of the tensioning wheel and an inclination angle adjusting supporting leg of the transmission belt bracket; the conveying belt support is obliquely arranged, the lower end of the conveying belt support is a feeding end, and the upper end of the conveying belt support is a discharging end; the conveying belt driving roller is arranged at the feeding end of the conveying belt bracket, and the conveying belt driven roller is arranged at the discharging end of the conveying belt bracket; the transmission belt is in transmission connection between a transmission belt driving roller and a transmission belt driven roller; the transmission belt tensioning wheel is positioned below the middle part of the transmission belt support, the electric tensioning wheel push rod is arranged on the transmission belt support at the side of the transmission belt tensioning wheel, and the electric tensioning wheel push rod is connected with the transmission belt tensioning wheel; the transmission belt motor is connected with the transmission belt driving roller; the transmission belt support inclination adjustment support leg is located below the transmission belt support, the upper end of the transmission belt support inclination adjustment support leg is hinged to the transmission belt support, and the lower end of the transmission belt support inclination adjustment support leg is supported on the ground.

4. The peanut classifying and screening device according to claim 1, wherein: the screening mechanism comprises a frame, a primary screening component, a secondary screening component, a net-shaped discharging slideway, a fan and a primary screening driving component; the frame is provided with universal travelling wheels; the primary screening assemblies are positioned at the top of the rack, and the secondary screening assemblies are positioned on the rack below the primary screening assemblies; the reticular discharging slideway is positioned on the frame below the discharging end of the primary screening component; the fan is positioned on the frame behind the net-shaped discharging slideway; the primary screening driving assembly is positioned on the frame at the side of the net-shaped discharging slideway and is in transmission connection with the primary screening assembly; the net-shaped discharging slideway and the fan form a wind power screening component.

5. The peanut classifying screen device according to claim 4, wherein: the primary screening component comprises a cylindrical outer layer screen, a screen supporting wheel, a discharge end cover, a cylindrical inner layer screen steering engine, a cylindrical inner layer screen rocker arm, a cylindrical inner layer screen connecting rod, a cylindrical inner layer screen switching frame and a cylindrical outer layer screen switching frame; the cylindrical outer screen is obliquely arranged, the high end of the cylindrical outer screen is lapped on the frame through the screen supporting wheel, the low end of the cylindrical outer screen is inserted into the discharge end cover, the discharge end cover is fixed on the frame, and the discharge port of the discharge end cover is communicated with the feed port of the reticular discharge slideway; the cylindrical outer layer screen is coaxially sleeved outside the cylindrical inner layer screen, the cylindrical inner layer screen is in sliding contact with the surface of the cylindrical outer layer screen, and the cylindrical inner layer screen only has axial sliding freedom degree relative to the cylindrical outer layer screen; the cylindrical inner layer screen transfer frame is fixedly arranged at the bottom end cylinder opening of the cylindrical inner layer screen; the cylindrical outer layer screen adapting frame is fixedly arranged at the bottom end cylinder opening of the cylindrical outer layer screen; the steering engine of the cylinder type inner layer screen cloth is fixedly arranged on the switching frame of the cylinder type outer layer screen cloth, one end of the rocker arm of the cylinder type inner layer screen cloth is fixedly connected with the power output shaft of the steering engine of the cylinder type inner layer screen cloth, the other end of the rocker arm of the cylinder type inner layer screen cloth is hinged with one end of the connecting rod of the cylinder type inner layer screen cloth, and the other end of the connecting rod of the cylinder type inner layer screen cloth is hinged with the switching frame of the cylinder type inner layer screen cloth.

6. The peanut classifying screen device according to claim 4, wherein: the secondary screening component comprises a plate-type upper screen, a plate-type lower screen steering engine, a plate-type lower screen rocker arm and a plate-type lower screen connecting rod; the plate type upper screen is obliquely arranged and fixedly connected with the frame; the plate-type lower screen is attached to the lower surface of the plate-type upper screen in parallel, and the plate-type lower screen has only sliding freedom degree relative to the plate-type upper screen; the plate-type lower screen steering engine is fixedly arranged on the frame below the plate-type lower screen, a power output shaft of the plate-type lower screen steering engine is fixedly connected with one end of the plate-type lower screen rocker arm, the other end of the plate-type lower screen rocker arm is hinged with one end of the plate-type lower screen connecting rod, and the other end of the plate-type lower screen connecting rod is hinged with the plate-type lower screen.

7. The peanut classifying and screening device according to claim 5, wherein: the primary screening driving assembly comprises a primary screening motor, a driving belt pulley, a belt, a driven belt pulley and a speed reducer; the primary screening motor and the speed reducer are fixedly arranged on the frame, the driving belt pulley is fixedly arranged on a motor shaft of the primary screening motor, the driven belt pulley is fixedly arranged on a power input shaft of the speed reducer, and the driven belt pulley is in transmission connection with the driving belt pulley through a belt; and a power output shaft of the speed reducer is fixedly connected with the cylindrical outer-layer screen adapting frame.

8. The peanut classifying screen device according to claim 4, wherein: the packing weighing mechanism comprises a packing rack, a weighing device, a material package outward conveying belt driving roller, a material package outward conveying belt driven roller and a material package outward conveying belt motor; the packing rack is positioned on the ground below the discharge port of the net-shaped discharge slideway; the material package outward conveying belt driving roller is positioned at the discharging end of the packaging rack, the material package outward conveying belt driven roller is positioned at the feeding end of the packaging rack, and the material package outward conveying belt driven roller is in transmission connection with the material package outward conveying belt driving roller through the material package outward conveying belt; the motor of the material package outward conveying belt is positioned on a packing rack at the side of the driving roller of the material package outward conveying belt; the weighing device is fixedly arranged on the packing rack, the weighing device and the driven roller wheel of the material package outward conveying belt are arranged in parallel, and the material package outward conveying belt on the weighing device is used for placing peanut packaging bags.