CN115283258A

CN115283258A - Impurity integrated screening machine for snakegourd fruit seeds and screening method thereof

Info

Publication number: CN115283258A
Application number: CN202210827965.2A
Authority: CN
Inventors: 汪达; 吴蒙然; 王韦韦; 苏锐; 王昊; 李树仁; 方阳阳; 唐计哲; 杨威龙; 熊言杰; 高宁; 沐靖宇
Original assignee: Anhui Agricultural University AHAU
Current assignee: Anhui Agricultural University AHAU
Priority date: 2022-07-13
Filing date: 2022-07-13
Publication date: 2022-11-04

Abstract

The invention relates to the technical field of screening of snakegourd seed raw materials, and discloses an integrated impurity screening machine for snakegourd seeds and a screening method thereof, wherein the integrated impurity screening machine comprises a disc, a plurality of hollow rings are arranged above the disc, a screen disc is arranged in a bottom port of each hollow ring, and an inner polygonal sleeve is arranged in the middle of each screen disc; a fixed shaft is inserted in the middle of the disc, a polygonal shaft is arranged at the top end of the fixed shaft, and the top end of the polygonal shaft penetrates through the inner polygonal sleeves in a sliding manner; the front side and the two sides of the top surface of the disc are provided with sliding rods, the outer side surface of each hollow ring is sleeved with an outer ring, and each sliding rod is connected with the corresponding outer ring through a sliding assembly; the rear side of the disc is provided with a vertical plate, a plurality of eccentric shafts are inserted on the vertical plate, and each eccentric shaft is connected with a corresponding hollow ring through a vibration assembly. The invention can not only carry out synchronous multistage screening on the snakegourd fruit seeds, but also remove impurities in the snakegourd fruit seeds, thereby further improving the product quality of the screened snakegourd fruit seeds.

Description

Impurity integrated screening machine for snakegourd fruit seeds and screening method thereof

Technical Field

The invention relates to the technical field of screening of snakegourd fruit seed raw materials, in particular to an impurity integrated screening machine for snakegourd fruit seeds and a screening method thereof.

Background

The requirements of the snakegourd seeds on raw material treatment are very strict, the size, the thickness and the like of the snakegourd seeds have great influence on the quality of products, the sorting level of the snakegourd seeds is further refined, and the sorting precision and the sorting efficiency of the snakegourd seeds are the key points for improving the product quality and the production efficiency.

The existing screening technology has the following defects: 1. most of the snakegourd seeds are primarily selected by a round roller screen and then are fed into a plane round screen machine for screening, so that the requirement of diversified thickness grades of raw materials for producing the snakegourd seeds cannot be met, and the number of screening and sorting of the snakegourd seeds is increased; 2. the trichosanthes seed can have impurity doping wherein at the in-process of screening, and is inconvenient carry out effectual rejection to impurity, causes impurity to mix to influence the quality of later stage product in the trichosanthes seed.

Disclosure of Invention

The invention aims to solve the defect of poor screening effect of snakegourd fruit seeds in the prior art, and provides an integrated impurity screening machine for the snakegourd fruit seeds.

In order to solve the problem of poor screening effect of the snakegourd fruit seeds in the prior art, the invention adopts the following technical scheme:

the integrated screening machine for impurities in snakegourd fruit seeds comprises a disc, wherein a plurality of hollow rings are sequentially arranged above the disc, a screening disc is arranged in a bottom port of each hollow ring, and an inner polygonal sleeve is arranged in the middle of each screening disc; a fixed shaft is inserted into the middle of the disc, a polygonal shaft is arranged at the top end of the fixed shaft, and the top end of the polygonal shaft sequentially penetrates through the inner polygonal sleeves in an upward sliding manner;

the front side and the two sides of the top surface of the disc are provided with sliding rods, the top end part of each sliding rod is flush with the top end opening of the hollow ring positioned above the sliding rod, the outer side surface of each hollow ring is sleeved with an outer ring, and each sliding rod is connected with the corresponding outer ring through a sliding assembly; the rear side edge of the disc is provided with a vertical plate, a plurality of eccentric shafts are inserted into the vertical plate, and each eccentric shaft is connected with a corresponding hollow ring through a vibration assembly.

Preferably, a first bearing is arranged in the middle of the disc, the fixed shaft penetrates through the first bearing and is inserted in the first bearing, and the fixed shaft is rotatably connected with the disc through the first bearing; the bearing ring is sleeved in the middle of the outer side face of the hollow ring, the outer ring is concentrically sleeved on the outer ring face of the bearing ring, and the outer ring is rotatably connected with the hollow ring through the bearing ring.

Preferably, a circular groove is formed in one side of the bottom surface of the disc, a servo motor is installed inside the circular groove, a first gear is sleeved at the end of a motor shaft of the servo motor, a second gear is sleeved at the bottom end of the fixed shaft, and the first gear is meshed with the second gear.

Preferably, the sliding assembly comprises sliding cylinders and tension springs, the sliding cylinders are arranged on the front face and the two side faces of the outer ring, each sliding cylinder is sleeved on the corresponding sliding rod in a sliding mode, the tension springs are arranged below each sliding cylinder, and each tension spring is sleeved on the corresponding sliding rod.

Preferably, the vibration assembly comprises eccentric cams and vibrating blocks, the eccentric cams are sleeved at the front end of the eccentric shaft, the vibrating blocks are arranged at the bottom of the back face of each hollow ring, and each eccentric cam is matched with each vibrating block to slide and tightly abut against the corresponding vibrating block.

Preferably, the rear side of the top surface of the disc is provided with an ear seat, the top end portion of the ear seat is inserted with a linkage shaft, the front end portion of the linkage shaft is sleeved with a driven bevel gear, the top end portion of the fixed shaft is sleeved with a driving bevel gear, and the driving bevel gear is meshed with the driven bevel gear.

Preferably, the vertical plates are respectively provided with a plurality of second bearings, each eccentric shaft penetrates through and is inserted into the corresponding second bearing, and the eccentric shafts are rotatably connected with the vertical plates through the second bearings; the top is equipped with the third bearing in the ear seat, the universal driving shaft is inserted to the inside of third bearing, the universal driving shaft rotates through third bearing and ear seat and is connected.

Preferably, the lower part is equipped with the fourth bearing in the back of riser, the rear end portion of universal driving shaft extends backward and runs through the fourth bearing, the universal driving shaft rotates with the riser through the fourth bearing and is connected, just the rear end portion cover of universal driving shaft is equipped with first sprocket, every the rear end portion cover of eccentric shaft is all equipped with the second sprocket, first sprocket meshes the transmission with a plurality of second sprockets in proper order through the chain belt and is connected.

Preferably, a conical disc is sleeved at the bottom of the polygonal shaft, a plurality of supporting legs are uniformly distributed at the outer edge of the bottom surface of the disc, and a stop block is arranged at the top end of each sliding rod; every all seted up a plurality of sieve meshes on the sieve tray, it is a plurality of the aperture of sieve mesh from top to bottom progressively reduces in proper order.

The invention also provides a screening method of the impurity integrated screening machine for the snakegourd fruit seeds, which comprises the following steps:

step one, a motor shaft of a servo motor drives a first gear to synchronously rotate, the first gear is meshed to drive a second gear, a fixed shaft, a driving bevel gear and a polygonal shaft to rotate, the polygonal shaft and an inner polygonal sleeve form a limiting effect, and the polygonal sleeve, a sieve tray and a hollow ring are synchronously driven to rotate along an outer ring;

step two, the driving bevel gear is meshed with the driven bevel gear and the linkage shaft to rotate along the ear seat, the linkage shaft drives the first chain wheel to synchronously rotate, and the first chain wheel sequentially drives a plurality of second chain wheels and the eccentric shaft to rotate through a chain belt;

step three, the eccentric shaft drives the eccentric cam to synchronously rotate, the eccentric cam and the vibration block form a limiting effect, and under the matching effect of the tension spring, the sliding cylinder is driven to slide back and forth along the sliding rod, the outer ring and the hollow ring are driven to vibrate back and forth up and down, and the inner polygonal sleeve is synchronously driven to slide back and forth up and down along the multi-deformation shaft;

step four, evenly place the trichosanthes seed in the hollow ring of the top, along with hollow ring, the synchronous reciprocal vibration effect that carries on of the pivoted in-process of sieve tray for large granule trichosanthes seed stays on the sieve tray of the top, remaining trichosanthes seed drops to the hollow ring of below, sieve tray, finally make the trichosanthes seed of different granularity sizes stay on different sieve trays, impurity in the trichosanthes seed drops to the conical disk via the dispersion of sieve tray below, and then impurity via the conical disk outside landing to subaerial.

Compared with the prior art, the invention has the beneficial effects that:

1. in the invention, through the matching use of the sliding assembly and the eccentric assembly, the eccentric cam and the vibrating block form a limiting effect, and the hollow ring and the sieve tray are driven to vibrate up and down in a reciprocating manner under the matching effect of the tension spring, so that the plurality of sieve trays can be synchronously subjected to reciprocating vibration screening;

2. in the invention, the polygonal shaft and the inner polygonal sleeve form a limiting effect to synchronously drive the hollow ring and the sieve trays to rotate, so that the snakegourd seeds with different particle sizes are left on different sieve trays, and impurities in the snakegourd seeds are scattered and fall to the conical tray through the lowermost sieve tray;

in conclusion, the screening device solves the problem of poor screening effect of the snakegourd seeds, is compact in overall structural design, can be used for synchronously screening the snakegourd seeds in multiple stages and removing impurities in the snakegourd seeds, and further improves the product quality of the screened snakegourd seeds.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

FIG. 1 is a left side view of the present invention;

FIG. 2 is a rear view of the present invention;

FIG. 3 is a rear view of the present invention;

FIG. 4 is a sectional view of the main view structure of the present invention;

FIG. 5 is a left side view of the present invention;

FIG. 6 is a right side view of the present invention;

FIG. 7 is a rear view of the present invention;

FIG. 8 is a top view of the present invention;

FIG. 9 is a bottom view of the present invention;

FIG. 10 is a schematic illustration of a screening method of the present invention;

number in the figure: 1. a disc; 11. a fixed shaft; 12. a polygonal shaft; 13. a servo motor; 14. a first gear; 15. a second gear; 16. supporting legs; 2. a hollow ring; 21. a sieve tray; 22. an inner multi-deformation sleeve; 23. an outer ring; 24. a slide cylinder; 25. a tension spring; 3. a slide bar; 31. an ear mount; 32. a linkage shaft; 33. a driven bevel gear; 34. a drive bevel gear; 35. a conical disk; 4. a vertical plate; 41. an eccentric shaft; 42. an eccentric cam; 43. vibrating the block; 44. a first sprocket; 45. a second sprocket; 46. a chain belt.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

The first embodiment is as follows: the embodiment provides an integrated impurity screening machine for snakegourd seeds, which comprises a disc 1 and is shown in fig. 1-9, wherein the disc 1 is in the shape of a horizontally placed circular disc, a plurality of equidistantly distributed hollow rings 2 are sequentially arranged above the disc 1, a screen disc 21 which is concentrically and fixedly connected is arranged in a bottom port of each hollow ring 2, and an inner polygonal sleeve 22 which vertically penetrates and is fixedly connected is arranged in the middle of each screen disc 21; a fixed shaft 11 which is rotatably connected is inserted in the middle of the disc 1, a polygonal shaft 12 which is coaxially connected is arranged at the top end part of the fixed shaft 11, and the top end part of the polygonal shaft 12 sequentially penetrates through a plurality of inner polygonal sleeves 22 in an upward sliding manner;

the front side and the two sides of the top surface of the disc 1 are respectively provided with a slide bar 3 which is fixedly connected vertically, the top end part of each slide bar 3 is flush with the top end opening of the hollow ring 2 positioned above, the outer side surface of each hollow ring 2 is sleeved with a rotatably connected outer ring 23, and each slide bar 3 is connected with the corresponding outer ring 23 through a sliding assembly; the rear side of the disc 1 is provided with a vertical plate 4 which is fixedly connected vertically, a plurality of eccentric shafts 41 which longitudinally penetrate and are rotatably connected are inserted in the vertical plate 4, and each eccentric shaft 41 is connected with the corresponding hollow ring 2 through a vibration component.

In a specific implementation process, as shown in fig. 1 and 2, a first bearing vertically penetrating and fixedly connected is arranged in the middle of the disc 1, the fixed shaft 11 penetrates and is inserted into the first bearing, the fixed shaft 11 is rotatably connected with the disc 1 through the first bearing, and when the fixed shaft 11 rotates, the fixed shaft 11 rotates along the first bearing; the bearing ring of concentric rigid coupling is equipped with to the lateral surface middle part cover of hollow ring 2, and outer loop 23 overlaps with one heart and establishes on the outer anchor ring of bearing ring, and outer loop 23 rotates through bearing ring and hollow ring 2 and is connected, and when hollow ring 2 rotated, hollow ring 2 rotated along the bearing ring.

In the specific implementation process, as shown in fig. 2 and 5, the vibration assembly includes an eccentric cam 42 and a vibration block 43, the front end of the eccentric shaft 41 is sleeved with the eccentric cam 42 which is eccentrically and fixedly connected, the bottom of the back of each hollow ring 2 is provided with the vibration block 43, and each eccentric cam 42 is matched, slid and tightly abutted on the corresponding vibration block 43; the sliding assembly comprises sliding cylinders 24 and tension springs 25, the sliding cylinders 24 are arranged on the front face and the two side faces of the outer ring 23, each sliding cylinder 24 is slidably sleeved on the corresponding sliding rod 3, each tension spring 25 is arranged below each sliding cylinder 24, and each tension spring 25 is sleeved on the corresponding sliding rod 3; the eccentric shaft 41 drives the eccentric cam 42 to rotate synchronously, the eccentric cam 42 and the vibrating block 43 form a limiting effect, and under the matching effect of the tension spring 25, the sliding cylinder 24 is driven to slide back and forth along the sliding rod 3, the outer ring 23 and the hollow ring 2 are driven to vibrate back and forth up and down, and the inner polygonal sleeve 22 is driven to slide back and forth up and down along the multi-deformation shaft 12 synchronously.

In the specific implementation process, as shown in fig. 3 and 6, the bottom of the polygonal shaft 12 is sleeved with a conical disc 35 which is fixedly connected concentrically, the outer edge of the bottom surface of the disc 1 is uniformly provided with a plurality of supporting legs 16 which are fixedly connected vertically, and the top end part of each sliding rod 3 is provided with a stop dog; all seted up a plurality of align to grid's sieve mesh on every sieve tray 21, the aperture of a plurality of sieve meshes from top to bottom decreases progressively in proper order, and impurity in the trichosanthes seed drops to conical disk 35 via the dispersion of sieve tray 21 below, and then impurity via conical disk 35 outside landing to subaerial.

In the specific implementation process, as shown in fig. 2 and 7, a plurality of second bearings which are equidistantly distributed and fixedly connected are arranged on the vertical plate 4, each eccentric shaft 41 is inserted into the corresponding second bearing in a penetrating manner, the eccentric shaft 41 is rotatably connected with the vertical plate 4 through the second bearings, when the eccentric shaft 41 rotates, the eccentric shaft 41 rotates along the second bearings, and the eccentric shaft 41 drives the eccentric cam 42 to synchronously rotate; the top is equipped with the third bearing in the ear seat 31, and the universal driving shaft 32 that vertically runs through is inserted to the inside of third bearing, and universal driving shaft 32 rotates through third bearing and ear seat 31 to be connected, and when universal driving shaft 32 rotated, universal driving shaft 32 rotated along third bearing, fourth bearing.

The second embodiment: in the first embodiment, there is a problem that the fixing shaft 11 cannot rotate, so the first embodiment further includes:

in the specific implementation process, as shown in fig. 4 and 6, a circular groove is formed in one side of the bottom surface of the disc 1, a servo motor 13 with a downward output end is installed inside the circular groove, the type of the servo motor 13 is HG-SN202J-S100, a first gear 14 which is concentrically and fixedly connected is sleeved at the end of a motor shaft of the servo motor 13, a second gear 15 which is concentrically and fixedly connected is sleeved at the bottom end of the fixed shaft 11, and the first gear 14 is in meshed connection with the second gear 15; the motor shaft of the servo motor 13 drives the first gear 14 to rotate synchronously, and the first gear 14 engages with and drives the second gear 15, the fixed shaft 11, the drive bevel gear 34, and the polygonal shaft 12 to rotate, thereby driving the fixed shaft 11 to rotate.

Example three: in the first embodiment, there is a problem that the linkage shaft 32 cannot rotate, so that the first embodiment further includes:

in the specific implementation process, as shown in fig. 4 and 5, an ear seat 31 is arranged on the rear side of the top surface of the disc 1, a linkage shaft 32 which is rotatably connected is inserted in the top end portion of the ear seat 31, a driven bevel gear 33 which is concentrically and fixedly connected is sleeved on the front end portion of the linkage shaft 32, a driving bevel gear 34 which is concentrically and fixedly connected is sleeved on the top end portion of the fixed shaft 11, the driving bevel gear 34 is meshed with the driven bevel gear 33, and when the driving bevel gear 34 rotates, the driving bevel gear 34 is meshed to drive the driven bevel gear 33 and the linkage shaft 32 to rotate along the ear seat 31, so that the linkage shaft 32 is driven to rotate.

Example four: in the first embodiment, there is a problem that the eccentric shafts 41 cannot rotate, and therefore, the first embodiment further includes:

in the specific implementation process, as shown in fig. 1 and fig. 3, a fourth bearing penetrating through the fixed connection is arranged at the lower middle part of the back surface of the vertical plate 4, the rear end part of the linkage shaft 32 extends backwards and penetrates through the fourth bearing, the linkage shaft 32 is rotatably connected with the vertical plate 4 through the fourth bearing, a first chain wheel 44 concentrically fixed and connected with the rear end part of the linkage shaft 32 is sleeved on the rear end part of each eccentric shaft 41, a second chain wheel 45 concentrically fixed and connected with the rear end part of each eccentric shaft 41 is sleeved on the rear end part of each eccentric shaft 41, the first chain wheel 44 is sequentially engaged and driven with the plurality of second chain wheels 45 through a chain belt 46, when the linkage shaft 32 rotates, the linkage shaft 32 drives the first chain wheel 44 to rotate synchronously, and the first chain wheel 44 sequentially drives the plurality of second chain wheels 45 and the eccentric shaft 41 to rotate through the chain belts 46, thereby driving the plurality of eccentric shafts 41 to rotate synchronously.

Example five: referring to fig. 10, the working principle and operation method of the present invention are as follows:

step one, a servo motor 13 is started, a motor shaft of the servo motor 13 drives a first gear 14 to synchronously rotate, the first gear 14 is meshed to drive a second gear 15, a fixed shaft 11, a driving bevel gear 34 and a polygonal shaft 12 to rotate, the polygonal shaft 12 and an inner polygonal sleeve 22 form a limiting effect, and the polygonal sleeve 22, a sieve disc 21 and a hollow ring 2 are synchronously driven to rotate along an outer ring 23;

step two, the driving bevel gear 34 is engaged to drive the driven bevel gear 33 and the linkage shaft 32 to rotate along the lug seat 31, the linkage shaft 32 drives the first chain wheel 44 to synchronously rotate, and the first chain wheel 44 sequentially drives a plurality of second chain wheels 45 and the eccentric shaft 41 to rotate through the chain belt 46;

step three, the eccentric shaft 41 drives the eccentric cam 42 to synchronously rotate, the eccentric cam 42 and the vibrating block 43 form a limiting effect, and under the matching action of the tension spring 25, the sliding cylinder 24 is driven to slide back and forth along the sliding rod 3, the outer ring 23 and the hollow ring 2 are driven to vibrate back and forth up and down, and the inner polygonal sleeve 22 is synchronously driven to slide back and forth up and down along the multi-deformation shaft 12;

step four, evenly place the trichosanthes seed in the hollow ring 2 of the top, along with hollow ring 2, the rotatory in-process of sieve tray 21 is carried out the vibration effect of reciprocating in step, make large granule trichosanthes seed stay on the sieve tray 21 of the top, remaining trichosanthes seed drop to hollow ring 2 of below, sieve tray 21, finally make the trichosanthes seed of different granularity sizes stay on different sieve trays 21, impurity in the trichosanthes seed drops to conical disk 35 via the dispersion of sieve tray 21 below, and then impurity via conical disk 35 outside landing to subaerial.

The screening device solves the problem of poor screening effect of the snakegourd fruit seeds, is compact in overall structural design, can be used for synchronously screening the snakegourd fruit seeds in multiple stages, can also be used for removing impurities in the snakegourd fruit seeds, and further improves the product quality of the screened snakegourd fruit seeds.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.

Claims

1. A impurity integration screening machine for trichosanthes seed, including disc (1), its characterized in that: a plurality of hollow rings (2) are sequentially arranged above the disc (1), a sieve tray (21) is arranged in a bottom port of each hollow ring (2), and an inner polygonal sleeve (22) is arranged in the middle of each sieve tray (21); a fixed shaft (11) is inserted into the middle of the disc (1), a polygonal shaft (12) is arranged at the top end of the fixed shaft (11), and the top end of the polygonal shaft (12) sequentially penetrates through the inner polygonal sleeves (22) in an upward sliding manner;

the front side and the two sides of the top surface of the disc (1) are respectively provided with a sliding rod (3), the top end part of each sliding rod (3) is flush with the top end opening of the hollow ring (2) positioned above, the outer side surface of each hollow ring (2) is sleeved with an outer ring (23), and each sliding rod (3) is connected with the corresponding outer ring (23) through a sliding assembly; the rear side edge of the disc (1) is provided with a vertical plate (4), a plurality of eccentric shafts (41) are inserted into the vertical plate (4), and each eccentric shaft (41) is connected with a corresponding hollow ring (2) through a vibration assembly.

2. An impurity integrated screening machine for snakegourd seeds as claimed in claim 1, wherein: the middle part of the disc (1) is provided with a first bearing, the fixed shaft (11) penetrates through the first bearing and is inserted in the first bearing, and the fixed shaft (11) is rotatably connected with the disc (1) through the first bearing; the bearing ring is sleeved in the middle of the outer side face of the hollow ring (2), the outer ring (23) is concentrically sleeved on the outer ring face of the bearing ring, and the outer ring (23) is rotatably connected with the hollow ring (2) through the bearing ring.

3. An impurity integrated screening machine for snakegourd seeds as claimed in claim 1, wherein: circular recess has been seted up to bottom surface one side of disc (1), the internally mounted of circular recess has servo motor (13), the motor shaft tip cover of servo motor (13) is equipped with first gear (14), the bottom portion cover of fixed axle (11) is equipped with second gear (15), first gear (14) are connected with second gear (15) meshing.

4. An impurity integrated screening machine for snakegourd seeds as claimed in claim 1, wherein: the sliding assembly comprises sliding cylinders (24) and tension springs (25), the sliding cylinders (24) are arranged on the front face and the two side faces of the outer ring (23), each sliding cylinder (24) is sleeved on the corresponding sliding rod (3) in a sliding mode, each tension spring (25) is arranged below each sliding cylinder (24) and is sleeved on the corresponding sliding rod (3) in a sliding mode, and each tension spring (25) is sleeved on the corresponding sliding rod (3).

5. An impurity integrated screening machine for snakegourd seeds as claimed in claim 1, wherein: the vibrating assembly comprises eccentric cams (42) and vibrating blocks (43), the eccentric cams (42) are sleeved at the front end of the eccentric shaft (41), the vibrating blocks (43) are arranged at the bottom of the back face of each hollow ring (2), and each eccentric cam (42) is matched with each other to slide and tightly abut against the corresponding vibrating block (43).

6. An impurity integrated screening machine for snakegourd seeds as claimed in claim 1, wherein: the disc is characterized in that an ear seat (31) is arranged on the rear side of the top surface of the disc (1), a linkage shaft (32) is inserted into the top end of the ear seat (31), a driven bevel gear (33) is sleeved on the front end of the linkage shaft (32), a driving bevel gear (34) is sleeved on the top end of the fixed shaft (11), and the driving bevel gear (34) is meshed with the driven bevel gear (33).

7. An impurity integrated screening machine for snakegourd seeds as claimed in claim 6, wherein: a plurality of second bearings are arranged on the vertical plates (4), each eccentric shaft (41) penetrates through and is inserted into the corresponding second bearing, and the eccentric shafts (41) are rotatably connected with the vertical plates (4) through the second bearings; the top is equipped with the third bearing in ear seat (31), universal driving shaft (32) are inserted to the inside of third bearing, universal driving shaft (32) rotate with ear seat (31) through the third bearing and are connected.

8. An impurity integrated screening machine for snakegourd seeds as claimed in claim 6, wherein: lower part is equipped with the fourth bearing in the back of riser (4), the rear end portion of universal driving shaft (32) extends backward and runs through the fourth bearing, universal driving shaft (32) rotate with riser (4) through the fourth bearing and are connected, just the rear end cover of universal driving shaft (32) is equipped with first sprocket (44), every the back tip of eccentric shaft (41) all is equipped with second sprocket (45), first sprocket (44) meshes the transmission through chain belt (46) with a plurality of second sprockets (45) in proper order and is connected.

9. An impurity integrated screening machine for snakegourd seeds as claimed in claim 1, wherein: a conical disc (35) is sleeved at the bottom of the polygonal shaft (12), a plurality of supporting legs (16) are uniformly distributed at the outer edge of the bottom surface of the disc (1), and a stop block is arranged at the top end of each sliding rod (3); every a plurality of sieve meshes have all been seted up on sieve dish (21), and is a plurality of the aperture of sieve mesh decreases progressively from top to bottom in proper order.

10. A screening method of an impurity integrated screening machine for snakegourd fruit seeds as claimed in any one of claims 1 to 9, wherein the method comprises the following steps:

step one, a motor shaft of a servo motor (13) drives a first gear (14) to synchronously rotate, the first gear (14) is meshed to drive a second gear (15), a fixed shaft (11), a driving bevel gear (34) and a polygonal shaft (12) to rotate, the polygonal shaft (12) and an inner polygonal sleeve (22) form a limiting effect, and the polygonal sleeve (22), a sieve tray (21) and a hollow ring (2) are synchronously driven to rotate along an outer ring (23);

step two, the driving bevel gear (34) is meshed to drive the driven bevel gear (33) and the linkage shaft (32) to rotate along the ear seat (31), the linkage shaft (32) drives the first chain wheel (44) to synchronously rotate, and the first chain wheel (44) sequentially drives a plurality of second chain wheels (45) and the eccentric shaft (41) to rotate through a chain belt (46);

step three, the eccentric shaft (41) drives the eccentric cam (42) to synchronously rotate, the eccentric cam (42) and the vibrating block (43) form a limiting effect, and under the matching effect of the tension spring (25), the sliding cylinder (24) is driven to slide in a reciprocating manner along the sliding rod (3), the outer ring (23) and the hollow ring (2) are driven to vibrate in a reciprocating manner up and down, and the inner polygonal sleeve (22) is synchronously driven to slide in a reciprocating manner up and down along the multi-deformation shaft (12);

step four, evenly place the trichosanthes seed in hollow ring (2) of the top, along with hollow ring (2), the rotatory in-process of sieve dish (21) is in step vibration effect that reciprocates, make large granule trichosanthes seed stay on sieve dish (21) of the top, remaining trichosanthes seed drop to hollow ring (2) of below, sieve dish (21), finally make the trichosanthes seed of different granularity size stay on different sieve dish (21), impurity in the trichosanthes seed drops to conical disk (35) via the dispersion of sieve dish (21) of the bottom, and back impurity via conical disk (35) outside landing to subaerial.