CN112845097B - Corn seed embryo face different orientation separation output device - Google Patents

Corn seed embryo face different orientation separation output device Download PDF

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Publication number
CN112845097B
CN112845097B CN202110021329.6A CN202110021329A CN112845097B CN 112845097 B CN112845097 B CN 112845097B CN 202110021329 A CN202110021329 A CN 202110021329A CN 112845097 B CN112845097 B CN 112845097B
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China
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side wall
centrifugal separation
quadrant
separation disc
seed
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CN112845097A (en
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张东兴
于天成
杨丽
崔涛
和贤桃
刘江
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China Agricultural University
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China Agricultural University
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
    • B07B13/14—Details or accessories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
    • B07B13/14—Details or accessories
    • B07B13/16—Feed or discharge arrangements

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Abstract

The invention relates to a corn seed embryo surface different orientation separation output device, which comprises a frame, a centrifugal separation device, a flow distribution block and a funnel, wherein the frame is provided with a plurality of separation holes; the shunting block comprises a shunting flat plate, a first side wall, a second side wall, a third side wall and a lying output groove, wherein the first side wall, the second side wall and the third side wall are arranged on the lower surface of the shunting flat plate; the shunt flat plate is fixedly connected to the horizontal connecting rod; the shunting flat plate is provided with a seed dropping hole communicated with the head end of the lying output slot, and the seed dropping hole is connected with the funnel; the first side wall, the second side wall and the centrifugal separation disc jointly form a separation channel of the corn seeds with the embryos facing upwards; the third side wall and the centrifugal separation disc jointly form a separation channel of the corn seeds with the embryo faces downwards. The invention can realize that the corn seeds which are continuously and singly thrown enter the same seed falling point and keep the lying posture that the embryo faces upwards or downwards, and finally, the corn seeds with the embryo faces downwards enter one conveying channel and the corn seeds with the embryo faces upwards enter the other conveying channel after centrifugal separation.

Description

Corn seed embryo face different orientation separation output device
Technical Field
The invention belongs to the technical field of agricultural machinery, and particularly relates to a corn seed embryo surface different-orientation separation output device.
Background
Corn is the first major food crop in China, but the yield per unit level has a larger gap compared with developed countries. Due to the adjustment of the corn planting structure, the corn planting area of China is in a trend of decreasing in recent years. Therefore, the improvement of the per unit yield level of the corn plays an important role in the stable yield and the yield of the corn in China, the guarantee of the grain safety and the like. According to the data of domestic and foreign documents, the directional sowing of the corn is an effective measure for improving the per unit yield level of the corn. Wherein, the yield increasing effect is best in a sowing posture that the embryo surface is parallel to the ground and faces upwards, the long axis of the seed is vertical to the row direction and the direction of the seed tip is consistent. The key point of the method is that the corn realizes mechanized directional sowing and is directionally arranged. The orientation arrangement of corn seeds requires consistent orientation of the embryo faces and consistent orientation of the seed tips. In the DOI: 10.11975/j.issn.1002-6819.2019.03.007 journal literature proposes a method and a device for identifying embryo faces: according to the surface characteristics that the embryo surface of the dent corn seed is provided with the embryo groove and the reverse surface is relatively flat, the embryo surface of the corn seed with the forward tip is identified by utilizing components such as a laser ranging sensor and the like. In the identification process of the embryo surface, the corn seeds are in a static state, the working efficiency of the device needs to be improved, and the method only realizes identification and recording of the embryo surface and cannot separate the seeds with different embryo surface orientations.
Disclosure of Invention
In view of the above technical problems, an object of the present invention is to provide a corn seed embryo surface different orientation separation output device, which can realize that continuously single-grain corn seeds fed into a single seed drop point enter a same seed dropping point and maintain a lying posture with the embryo surface facing upward or downward, and through centrifugal separation, finally the corn seeds with the embryo surface facing downward enter one of the conveying channels, and the corn seeds with the embryo surface facing upward enter the other conveying channel.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a maize seed embryo face is different to be towards separation output device, includes frame 1, centrifugal separation device 2, reposition of redundant personnel piece 3 and funnel 4.
The machine frame 1 comprises a supporting frame 101, a horizontal connecting rod 102 and a funnel supporting plate 103; the head end of the horizontal connecting rod 102 is installed above the supporting frame 101, and the funnel supporting plate 103 is horizontally and fixedly connected to the tail end of the horizontal connecting rod 102; the funnel support plate 103 is provided with a funnel hole 104 with a conical surface edge for supporting and mounting the funnel 4.
The centrifugal separation device 2 comprises a centrifugal separation disc 201, a gear ring 202, a bearing seat 203, a bearing 204, a shaft clamp spring 205, a hole clamp spring 206, a motor mounting base 207, a motor 208, a driving gear 209 and an expansion sleeve 210.
The centrifugal separation disc 201 is arranged horizontally below the funnel support plate 103; a seed separating port 2011 is formed in the center of the centrifugal separation disc 201, the edge of the seed separating port 2011 protrudes downwards, and the edge is installed on the bearing seat 203 through a bearing 204, a shaft clamp spring 205 and a hole clamp spring 206; the bearing housing 203 is mounted on the support frame 101.
The gear ring 202 is concentrically fixed to the lower surface of the centrifugal separation disc 201.
The motor mounting base 207 is mounted on the support frame 101; the motor 208 is mounted on the motor mounting base 207; the driving gear 209 is mounted on the power output shaft of the motor 208 through the expansion sleeve 210 and is engaged with the gear ring 202.
The diverter block 3 is horizontally arranged above the centrifugal separation disc 201, the diverter block 3 comprises a diverter plate 304, and a first side wall 301, a second side wall 302, a third side wall 305 and a lying output slot 306 which are arranged on the lower surface of the diverter plate 304; the shunt flat plate 304 is fixedly connected to the horizontal connecting rod 102; the diversion plate 304 is provided with a seed dropping hole 303 communicated with the head end of the lying output chute 306, and the seed dropping hole 303 is connected with the funnel 4.
Arranging the shunting block 3 in a plane rectangular coordinate system XOY, wherein the point O is the center of the centrifugal separation disc 201; the circle center of the seed falling hole 303 is located on the Y axis.
The lying output slot 306 is a 45-degree arc with the seed dropping hole 303 as the head end, and the tail end of the lying output slot 306 is positioned on the angle bisector of the first quadrant of the coordinate system; the lying output chute 306 allows corn seeds to exit the lying output chute 306 only in a lying position where the long axis of the seed is tangent to the circle in which the lying output chute 306 lies.
The first side wall 301 is a circular arc which is concentric with the centrifugal separation disc 201 and has the same radius; the head end of the first side wall 301 is located on the angular bisector of the fourth quadrant of the coordinate system, and the included angle between the connecting line of the tail end and the point O and the X axis is 80 °.
The second side wall 302 is a quarter of an elliptical arc, and the center of the elliptical arc is coincident with the center of the centrifugal separation disc 201; the long axis is positioned on the angular bisector of the first quadrant and the third quadrant, and the length of the long axis is equal to the diameter of the centrifugal separation disc 201; the minor axis of the horizontal output slot is positioned on the angular bisector of the second quadrant and the fourth quadrant, and the length of the minor axis is equal to the diameter of the circle where the horizontal output slot 306 is positioned; the second sidewall 302 has a head end positioned on the bisector of the fourth quadrant of the coordinate system and a tail end positioned on the bisector of the first quadrant of the coordinate system.
The first sidewall 301, second sidewall 302 and centrifuge disk 201 together define a separation channel for corn seeds having embryos facing upwardly.
The third side wall 305 is a curve formed by two sections of quarter elliptical arcs and comprises a third side wall first elliptical arc 3051 and a third side wall second elliptical arc 3052; the centers of the two sections of elliptical arcs are superposed with the circle center of the centrifugal separation disc 201; the long axis of the first elliptic arc 3051 of the third side wall and the short axis of the second elliptic arc 3052 of the third side wall are positioned on the angular bisector of the second quadrant and the fourth quadrant, and the short axis of the first elliptic arc 3051 of the third side wall and the long axis of the second elliptic arc 3052 of the third side wall are positioned on the angular bisector of the first quadrant and the third quadrant; the length of the major axis of the third sidewall first elliptical arc 3051 is equal to the minor axis of the second sidewall 302; the minor axis of the first elliptic arc 3051 of the third side wall coincides with the major axis of the second elliptic arc 3052 of the third side wall, and the length of the minor axis is longer than the diameter of the seed separating port 2011 of the centrifugal separation disk 201 and shorter than the diameter of the circle where the lying output groove 306 is located; the length of the minor axis of the second elliptical arc 3052 of the third sidewall is equal to the diameter of the seed separating port 2011 of the centrifugal separation disk 201. The head end of the first elliptic arc 3051 of the third side wall is positioned on the angular bisector of the fourth quadrant of the coordinate system, the tail end of the first elliptic arc 3051 of the third side wall and the head end of the second elliptic arc 3052 of the third side wall are positioned on the angular bisector of the first quadrant of the coordinate system, and the tail end of the second elliptic arc 3052 of the third side wall is positioned on the angular bisector of the second quadrant of the coordinate system.
The third sidewall 305 in combination with the centrifuge disk 201 forms a fractionating passage for maize seeds with their embryos facing downward.
The upper surface of the centrifugal separation disc 201 is a roughened surface that has been subjected to sanding.
The distance between the top wall of the lying output chute 306 and the centrifugal separation disc 201 gradually decreases from the head end to the tail end of the lying output chute 306; wherein the distance between the top wall of the end of the lying output chute 306 and the centrifugal separation disc 201 is greater than the maximum thickness of the corn seeds and less than the minimum width of the corn seeds; the lying output chute 306 has a chute width greater than the maximum width of the corn seed and less than the minimum length of the corn seed.
The device further comprises a conveyor channel 5, said conveyor channel 5 comprising a first linear chute 501, a first electromagnetic vibrator 502, a spiral chute 503, a second electromagnetic vibrator 504 and a second linear chute 505.
The first electromagnetic vibrator 502 and the second electromagnetic vibrator 504 are both mounted on the support frame 101; the first linear chute 501 and the second linear chute 505 are fixed to a first electromagnetic vibrator 502 and a second electromagnetic vibrator 504, respectively.
The inlet end of the first linear chute 501 is a circular arc concentric with the centrifugal separation disc 201, is arranged outside the edge of the centrifugal separation disc 201, and corresponds to a separation channel of corn seeds with embryos facing upwards.
The inlet end of the spiral chute 503 is arranged at the seed separating port 2011 of the centrifugal separation disc 201, corresponds to the separation channel of the corn seeds with the embryo facing downwards, and the outlet end is connected with the inlet end of the second linear chute 505.
The inlet end and the outlet end of the spiral chute 503 are both in a horizontal state; the spiral chute 503 rotates spirally for 225 degrees, the inner edge of the part of the spiral chute starting from the inlet end for 0-90 degrees is a spiral line, and the outer edge is a horizontal circular arc; the inner edge and the outer edge of the part of 91-225 degrees are both spiral lines, and the screw pitch of the spiral line of the inner edge is smaller than that of the spiral line of the outer edge.
Compared with the prior art, the invention has the beneficial effects that:
1. the upper surface of the centrifugal separation disc designed by the invention is frosted, the upper surface is uniform and rough, the difference of friction coefficients between the embryo surface and the reverse surface of the corn seed and other materials is enlarged, and a foundation is provided for the separation of the corn seeds with the embryo surfaces in different directions.
2. According to the shunting block designed by the invention, the limitation of the width and the height of the lying output groove enables corn seeds to keep the long axis of the seeds tangent to a circle where a seed falling point is located when the corn seeds leave the shunting block, and finally the corn seeds can only leave the lying output groove in four lying postures, namely: the seed point faces forwards and the embryo faces upwards, the seed point faces forwards and the embryo faces downwards, the seed point faces backwards and the embryo faces upwards, and the seed point faces backwards and the embryo faces downwards; the phenomenon of seed bounce dislocation when the corn seeds fall on the centrifugal separation disc is eliminated, so that the seed falling point is stabilized on a circle with a fixed diameter; the corn seeds can be accelerated to leave the centrifugal separation disc and enter the conveying channel by the contact of the elliptic arc side wall of the shunting block and the corn seeds.
3. The invention designs a centrifugal separation device based on the difference of friction coefficients between the embryo surface and the back surface of the corn seed and other materials, and the corn seeds with different orientation of the embryo surface rotate along with a centrifugal separation disc under the combined action of friction force, centrifugal force and the like, the corn seeds with different orientation of the embryo surface show different motions relative to the centrifugal separation disc, the corn seeds with the embryo surface facing downwards keep relatively static, the corn seeds with the embryo surface facing upwards carry out centrifugal motion, and finally the corn seeds with different orientation of the embryo surface enter different chutes to be output.
4. The invention utilizes the motor to drive the centrifugal separation disc to rotate at a constant speed, considers that the friction characteristics of the corn seeds among different varieties are different, and can adapt to the corn seeds of different varieties by adjusting the rotating speed of the motor, thereby achieving the optimal working state.
5. The invention provides power for the corn seed conveying by using the electromagnetic vibrator, and has high efficiency and stable work.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the device for separating and outputting embryo faces of corn seeds in different orientations;
fig. 2 is a schematic structural view of the gantry 1;
FIG. 3 is a schematic view of the structure of the centrifugal separator 2;
fig. 4 is an exploded view of the centrifugal separation device 2;
fig. 5 is a top view of diverter block 3;
fig. 6 is a schematic bottom structure view of the diverter block 3;
fig. 7 is a schematic structural view of the conveyance path 5;
FIG. 8 is a schematic diagram of the trajectory of a downward embryo-facing corn seed;
FIG. 9 is a schematic diagram of the trajectory of a maize seed with embryo facing upward.
Wherein the reference numerals are:
1 rack 101 support frame
102 horizontal connecting rod 103 funnel support plate
104 funnel hole 2 centrifugal separation device
201 centrifugal separation disc 2011 divides kind of mouth
202 gear ring 203 bearing seat
Clamp spring for 204 bearing 205 shaft
206 jump ring 207 motor installation base for hole
208 motor 209 drives the gear
210 expansion sleeve 3 shunting block
301 first side wall 302 second side wall
304 shunting flat plate of 303 seed dropping holes
305 third sidewall 3051 third sidewall first elliptical arc
3052 the third side wall second elliptical arc 306 lying flat output trough
4 funnel 5 transfer passage
501 first linear chute 502 first electromagnetic vibrator
503 spiral chute 504 second electromagnetic vibrator
505 second straight runner
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
As shown in figure 1, the corn seed embryo surface different-orientation separation output device comprises a frame 1, a centrifugal separation device 2, a shunting block 3, a hopper 4 and a conveying channel 5.
As shown in fig. 2, the frame 1 includes a support frame 101, a horizontal connection bar 102, and a funnel support plate 103. The head end of the horizontal connecting rod 102 is installed above the supporting frame 101 through a bolt, and the funnel supporting plate 103 is horizontally and fixedly connected to the tail end of the horizontal connecting rod 102 through a bolt; the funnel support plate 103 is provided with a funnel hole 104 with a conical surface edge for supporting and mounting the funnel 4.
As shown in fig. 3 and 4, the centrifugal separation device 2 includes a centrifugal separation disk 201, a gear ring 202, a bearing seat 203, a bearing 204, a shaft snap spring 205, a hole snap spring 206, a motor mounting base 207, a motor 208, a driving gear 209, and an expansion sleeve 210.
The centrifuge disk 201 is arranged horizontally below the funnel support plate 103. A seed separating port 2011 is formed in the center of the centrifugal separation disc 201, the edge of the seed separating port 2011 protrudes downwards, and the edge is mounted on the bearing seat 203 through a bearing 204, a shaft clamp spring 205 and a hole clamp spring 206. The bearing housing 203 is mounted on the support frame 101 by bolts.
The upper surface of the centrifugal separation disc 201 is a rough surface subjected to sand grinding treatment, so that the difference of friction coefficients between the embryo surface and the reverse surface of the corn seed and the upper surface of the centrifugal separation disc 201 can be amplified.
The gear ring 202 is concentrically fixed to the lower surface of the centrifugal separation disk 201 by a countersunk head screw.
The motor mounting base 207 is mounted on the support frame 101 through bolts; the motor 208 is mounted on the motor mounting base 207 through bolts, and the rotating speed is adjustable, so that the separation of different embryo surfaces in different directions can be realized by adapting to different varieties of corn seeds. The driving gear 209 is mounted on the power output shaft of the motor 208 through the expansion sleeve 210, and is meshed with the gear ring 202 to drive the centrifugal separation disc 201 to rotate.
As shown in fig. 5 and 6, the diverter block 3 is horizontally disposed above the centrifugal separation disc 201, and the diverter block 3 includes a diverter plate 304, and a first sidewall 301, a second sidewall 302, a third sidewall 305, and a lying output slot 306 disposed on a lower surface of the diverter plate 304; the shunt plate 304 is fixed to the horizontal connecting rod 102 by bolts. The diversion flat plate 304 is provided with a seed dropping hole 303 communicated with the head end of the lying output slot 306, and the seed dropping hole 303 is connected with the funnel 4 through a thread structure.
The shunting block 3 is arranged in a plane rectangular coordinate system XOY, wherein the point O is the center of the centrifugal separation disc 201. The circle center of the seed falling hole 303 is located on the Y axis.
The lying output slot 306 is a 45-degree arc with the seed dropping hole 303 as the head end, and the tail end of the lying output slot 306 is located on the angle bisector of the first quadrant of the coordinate system.
The first side wall 301 is a circular arc which is concentric with the centrifugal separation disc 201 and has the same radius; the head end of the first side wall 301 is located on the angular bisector of the fourth quadrant of the coordinate system, and the included angle between the connecting line of the tail end and the point O and the X axis is 80 °.
The second side wall 302 is a quarter of an elliptical arc, and the center of the elliptical arc is coincident with the center of the centrifugal separation disc 201; the long axis is positioned on the angular bisector of the first quadrant and the third quadrant, and the length of the long axis is equal to the diameter of the centrifugal separation disc 201; the minor axis of the horizontal output slot is positioned on the angular bisector of the second quadrant and the fourth quadrant, and the length of the minor axis is equal to the diameter of the circle where the horizontal output slot 306 is positioned; the second sidewall 302 has a head end positioned on the bisector of the fourth quadrant of the coordinate system and a tail end positioned on the bisector of the first quadrant of the coordinate system.
The first sidewall 301, second sidewall 302 and centrifuge disk 201 together define a separation channel for corn seeds having embryos facing upwardly.
The third side wall 305 is a curve formed by two sections of quarter elliptical arcs and comprises a third side wall first elliptical arc 3051 and a third side wall second elliptical arc 3052; the centers of the two sections of elliptical arcs are superposed with the circle center of the centrifugal separation disc 201; the long axis of the first elliptic arc 3051 of the third side wall and the short axis of the second elliptic arc 3052 of the third side wall are positioned on the angular bisector of the second quadrant and the fourth quadrant, and the short axis of the first elliptic arc 3051 of the third side wall and the long axis of the second elliptic arc 3052 of the third side wall are positioned on the angular bisector of the first quadrant and the third quadrant; the length of the major axis of the third sidewall first elliptical arc 3051 is equal to the minor axis of the second sidewall 302; the minor axis of the first elliptic arc 3051 of the third side wall coincides with the major axis of the second elliptic arc 3052 of the third side wall, and the length of the minor axis is longer than the diameter of the seed separating port 2011 of the centrifugal separation disk 201 and shorter than the diameter of the circle where the lying output groove 306 is located; the length of the minor axis of the second elliptical arc 3052 of the third sidewall is equal to the diameter of the seed separating port 2011 of the centrifugal separation disk 201. The head end of the first elliptic arc 3051 of the third side wall is positioned on the angular bisector of the fourth quadrant of the coordinate system, the tail end of the first elliptic arc 3051 of the third side wall and the head end of the second elliptic arc 3052 of the third side wall are positioned on the angular bisector of the first quadrant of the coordinate system, and the tail end of the second elliptic arc 3052 of the third side wall is positioned on the angular bisector of the second quadrant of the coordinate system.
The third sidewall 305 in combination with the centrifuge disk 201 forms a fractionating passage for maize seeds with their embryos facing downward.
The distance between the top wall of the lying output chute 306 and the centrifugal separation disc 201 gradually decreases from the head end to the tail end of the lying output chute 306; wherein the distance between the top wall of the end of the lying output chute 306 and the centrifugal separation disc 201 is greater than the maximum thickness of the corn seeds and less than the minimum width of the corn seeds; the width of the lying output chute 306 is greater than the maximum width of the corn seeds and less than the minimum length of the corn seeds, so that the corn seeds can only leave the lying output chute 306 in a lying posture in which the long axis of the seeds is tangent to the circle of the lying output chute 306.
As shown in fig. 7, the conveying path 5 includes a first linear chute 501, a first electromagnetic vibrator 502, a spiral chute 503, a second electromagnetic vibrator 504, and a second linear chute 505.
The first electromagnetic vibrator 502 and the second electromagnetic vibrator 504 are both mounted on the support frame 101 through bolts; the first linear chute 501 and the second linear chute 505 are fixed to the first electromagnetic vibrator 502 and the second electromagnetic vibrator 504, respectively, by bolts.
The inlet end of the first linear chute 501 is a circular arc concentric with the centrifugal separation disc 201, is arranged outside the edge of the centrifugal separation disc 201, and corresponds to a separation channel of corn seeds with embryos facing upwards.
The inlet end of the spiral chute 503 is arranged at the seed separating port 2011 of the centrifugal separation disc 201, corresponds to the separation channel of the corn seeds with the embryo facing downwards, and the outlet end is connected with the inlet end of the second linear chute 505.
The inlet end and the outlet end of the spiral chute 503 are both in a horizontal state; the spiral chute 503 rotates spirally for 225 degrees, the inner edge of the part of the spiral chute starting from the inlet end for 0-90 degrees is a spiral line, and the outer edge is a horizontal circular arc; the inner edge and the outer edge of the part of 91-225 degrees are both spiral lines, and the screw pitch of the spiral line of the inner edge is smaller than that of the spiral line of the outer edge.
The working process of the invention is as follows:
starting a motor, starting the centrifugal separation disc 201 to rotate at a constant speed, manually and continuously feeding single seeds or continuously feeding single seeds by adopting an air suction type seed sowing device, dropping the single seeds from the funnel 4 to the upper surface of the centrifugal separation disc 201 to move along with the centrifugal separation disc 201, keeping the long axis of the seeds tangent to a circle where a seed dropping point is located through a lying output groove 306 of the shunting block 3, and outputting the seeds in a lying posture that the embryo surface is upward or downward, under the combined action of centrifugal force, friction force and the like, the corn seeds with different embryo surfaces facing different directions show different movements relative to the centrifugal separation disc, the corn seeds with the embryo surfaces facing downwards keep relatively static and rotate for a certain angle along with the centrifugal separation disc 201, under the action of the third side wall 305 of the diversion block 3, the diversion block moves along the third side wall 305, then enters the spiral chute 503, and finally enters the second linear chute 505, and the movement track is shown by a dotted line in fig. 8; the corn seeds with the upward embryo surfaces are centrifugally moved, rotate with the centrifugal separation disc 201 through a certain angle, move along the second side wall 302 under the action of the second side wall 302 of the shunting block 3, and then enter the first linear chute 501, and the moving track is shown by a dotted line in fig. 9.

Claims (4)

1. The corn seed embryo surface different-orientation separation output device is characterized by comprising a rack (1), a centrifugal separation device (2), a shunting block (3) and a funnel (4);
the machine frame (1) comprises a supporting frame (101), a horizontal connecting rod (102) and a funnel supporting plate (103); the head end of the horizontal connecting rod (102) is arranged above the supporting frame (101), and the funnel supporting plate (103) is horizontally and fixedly connected to the tail end of the horizontal connecting rod (102); the funnel support plate (103) is provided with a funnel hole (104) with a conical surface edge for supporting and mounting the funnel (4);
the centrifugal separation device (2) comprises a centrifugal separation disc (201), a gear ring (202), a bearing seat (203), a bearing (204), a shaft clamp spring (205), a hole clamp spring (206), a motor mounting base (207), a motor (208), a driving gear (209) and an expansion sleeve (210);
the centrifugal separation disc (201) is horizontally arranged below the funnel support plate (103); a seed separating port (2011) is formed in the circle center of the centrifugal separation disc (201), the edge of the seed separating port (2011) protrudes downwards, and the edge is installed on the bearing seat (203) through a bearing (204), a shaft clamp spring (205) and a hole clamp spring (206); the bearing seat (203) is arranged on the supporting frame (101);
the gear ring (202) is concentrically and fixedly connected to the lower surface of the centrifugal separation disc (201);
the motor mounting base (207) is mounted on the support frame (101); the motor (208) is arranged on the motor mounting base (207); the driving gear (209) is arranged on a power output shaft of the motor (208) through an expansion sleeve (210) and is meshed with the gear ring (202);
the flow splitting block (3) is horizontally arranged above the centrifugal separation disc (201), and the flow splitting block (3) comprises a flow splitting flat plate (304), a first side wall (301), a second side wall (302), a third side wall (305) and a lying output groove (306) which are arranged on the lower surface of the flow splitting flat plate (304); the shunt flat plate (304) is fixedly connected to the horizontal connecting rod (102); the shunting flat plate (304) is provided with a seed dropping hole (303) communicated with the head end of the lying output groove (306), and the seed dropping hole (303) is connected with the funnel (4);
arranging the shunting block (3) in a plane rectangular coordinate system XOY, wherein the point O is the center of a centrifugal separation disc (201); the circle center of the seed falling hole (303) is positioned on the Y axis;
the lying output slot (306) is a 45-degree arc with the seed falling hole (303) as the head end, and the tail end of the lying output slot (306) is positioned on an angle bisector of a first quadrant of a coordinate system; the lying output groove (306) ensures that the corn seeds can only leave the lying output groove (306) in a lying posture that the long axis of the seeds is tangent to the circle of the lying output groove (306);
the first side wall (301) is a circular arc which is concentric with the centrifugal separation disc (201) and has the same radius; the head end of the first side wall (301) is positioned on an angle bisection line of a fourth quadrant of the coordinate system, and an included angle between a connecting line of the tail end and the point O and the X axis is 80 degrees;
the second side wall (302) is a quarter of elliptical arc, and the center of the elliptical arc is superposed with the center of the centrifugal separation disc (201); the long axis is positioned on the angular bisector of the first quadrant and the third quadrant, and the length of the long axis is equal to the diameter of the centrifugal separation disc (201); the minor axis of the horizontal output groove is positioned on the angular bisector of the second quadrant and the fourth quadrant, and the length of the minor axis is equal to the diameter of a circle where the horizontal output groove (306) is positioned; the head end of the second side wall (302) is positioned on an angular bisector of a fourth quadrant of the coordinate system, and the tail end of the second side wall is positioned on an angular bisector of a first quadrant of the coordinate system;
the first side wall (301), the second side wall (302) and the centrifugal separation disc (201) form a separation channel of the corn seeds with the embryos facing upwards;
the third side wall (305) is a curve formed by two sections of quarter elliptical arcs and comprises a first elliptical arc (3051) of the third side wall and a second elliptical arc (3052) of the third side wall; the centers of the two sections of elliptical arcs are superposed with the circle center of the centrifugal separation disc (201); the long axis of the first elliptic arc (3051) of the third side wall and the short axis of the second elliptic arc (3052) of the third side wall are positioned on the bisector of the second quadrant and the fourth quadrant, and the short axis of the first elliptic arc (3051) of the third side wall and the long axis of the second elliptic arc (3052) of the third side wall are positioned on the bisector of the first quadrant and the third quadrant; the length of the major axis of the third sidewall first elliptical arc (3051) is equal to the minor axis of the second sidewall (302); the minor axis of the first elliptic arc (3051) of the third side wall is superposed with the major axis of the second elliptic arc (3052) of the third side wall, and the length of the minor axis is greater than the diameter of the seed separating port (2011) of the centrifugal separation disc (201) and less than the diameter of the circle where the lying output groove (306) is located; the length of the short axis of the second elliptic arc (3052) of the third side wall is equal to the diameter of the seed separating port (2011) of the centrifugal separation disc (201); the head end of the first elliptic arc (3051) of the third side wall is positioned on the angular bisector of the fourth quadrant of the coordinate system, the tail end of the first elliptic arc (3051) of the third side wall and the head end of the second elliptic arc (3052) of the third side wall are positioned on the angular bisector of the first quadrant of the coordinate system, and the tail end of the second elliptic arc (3052) of the third side wall is positioned on the angular bisector of the second quadrant of the coordinate system;
the third side wall (305) and the centrifugal separation disc (201) form a separation channel of the corn seeds with downward embryo faces;
the distance between the top wall of the lying output slot (306) and the centrifugal separation disc (201) is gradually reduced from the head end to the tail end of the lying output slot (306); wherein the distance between the top wall of the end of the lying output chute (306) and the centrifugal separation disc (201) is greater than the maximum thickness of the corn seeds and less than the minimum width of the corn seeds; the lying output trough (306) has a trough width greater than a maximum width of the corn seeds and less than a minimum length of the corn seeds.
2. The corn seed embryo face differential orientation separation output device as claimed in claim 1, wherein the upper surface of the centrifugal separation disc (201) is a frosted rough surface.
3. The corn seed embryo face different orientation separation output device according to any one of claims 1-2, characterized in that the device further comprises a conveying channel (5), wherein the conveying channel (5) comprises a first linear chute (501), a first electromagnetic vibrator (502), a spiral chute (503), a second electromagnetic vibrator (504) and a second linear chute (505);
the first electromagnetic vibrator (502) and the second electromagnetic vibrator (504) are both mounted on a support frame (101); the first linear chute (501) and the second linear chute (505) are respectively fixed on the first electromagnetic vibrator (502) and the second electromagnetic vibrator (504);
the inlet end of the first linear chute (501) is a circular arc concentric with the centrifugal separation disc (201), is arranged on the outer side of the edge of the centrifugal separation disc (201), and corresponds to a separation channel of the corn seeds with embryos facing upwards;
the inlet end of the spiral chute (503) is arranged at a seed separating port (2011) of the centrifugal separation disc (201) and corresponds to a separation channel of corn seeds with downward embryo faces, and the outlet end of the spiral chute is connected with the inlet end of the second linear chute (505).
4. The corn seed embryo surface different orientation separation output device as claimed in claim 3, wherein the inlet end and the outlet end of the spiral chute (503) are both in a horizontal state; the spiral chute (503) rotates in a spiral mode for 225 degrees, the inner edge of the part of the spiral chute, which starts from the inlet end for 0-90 degrees, is a spiral line, and the outer edge of the spiral chute is a horizontal circular arc; the inner edge and the outer edge of the part of 91-225 degrees are both spiral lines, and the screw pitch of the spiral line of the inner edge is smaller than that of the spiral line of the outer edge.
CN202110021329.6A 2021-01-08 2021-01-08 Corn seed embryo face different orientation separation output device Expired - Fee Related CN112845097B (en)

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