CN109304301B

CN109304301B - Rapeseed screening machine

Info

Publication number: CN109304301B
Application number: CN201811350357.7A
Authority: CN
Inventors: 易聪
Original assignee: Anhui Xuzhong Food Machinery Co ltd
Current assignee: ANHUI XUZHONG FOOD MACHINERY Co.,Ltd.
Priority date: 2018-11-14
Filing date: 2018-11-14
Publication date: 2021-07-23
Anticipated expiration: 2038-11-14
Also published as: CN109304301A

Abstract

The invention relates to a screening machine, in particular to a rapeseed screening machine. The technical problem is as follows: the rapeseed screening machine can replace manual work to screen rapeseeds, is high in screening efficiency, and can thoroughly screen the rapeseeds. The technical implementation scheme of the invention is as follows: a rapeseed screening machine comprises a bottom plate, a support, a connecting plate, an inserting rod, a clamping ball, a plug, a first connecting rod, a screen plate, a first frame body, a top plate, a sliding plate, a supporting rod, a plastic ball, a supporting frame and the like; the bottom plate top left side is equipped with the support, and support top rotary type is connected with the connecting plate, and it has two first through-holes to open on the connecting plate, all is equipped with the inserted bar in the two first through-holes. The invention can screen the rapeseeds dropped from the second frame body through the action of the first frame body and the screen plate, does not need to use a sieve for screening, improves the screening efficiency, and can blow away the residual impurities in the rapeseeds through the wind power generated by the thin plate to achieve the effect of secondary screening.

Description

Rapeseed screening machine

Technical Field

The invention relates to a screening machine, in particular to a rapeseed screening machine.

Background

The oil content in the rapeseeds produced by the existing agriculture is high, the rapeseeds are one of the main varieties of raw materials for making oil immersion, but in a large market, the collected rapeseeds have a lot of impurities and cannot be directly utilized, the rapeseeds need to be screened, generally, people screen the rapeseeds by using a screen, the long-time screening is carried out, the hand of people is easy to ache and influence the subsequent screening efficiency, and the screened rapeseeds are also doped with small impurities to influence the subsequent use, so that a plurality of people are required to carry out alternative screening and repeated screening, and the labor cost is high.

Disclosure of Invention

In order to overcome the defects that the hand of people is easy to ache and influence the subsequent screening efficiency when the rapeseed is screened by a screen for a long time, and the screened rapeseed is also doped with small impurities to influence the subsequent use, the technical problem is as follows: the rapeseed screening machine can replace manual work to screen rapeseeds, is high in screening efficiency, and can thoroughly screen the rapeseeds.

The technical implementation scheme of the invention is as follows: a rapeseed screening machine comprises a bottom plate, a support, a connecting plate, inserting rods, clamping balls, inserting bolts, a first connecting rod, a screen plate, a first frame body, a top plate, a sliding plate, supporting rods, plastic balls, a supporting frame, a first bearing seat, a placing plate, a first collecting frame, a motor, a first rotating shaft, a disc, a cam, a second frame body, a sliding rail, a sliding block and a baffle plate, wherein the support is arranged on the left side of the top of the bottom plate, the connecting plate is rotatably connected to the top end of the support, two first through holes are formed in the connecting plate, the inserting rods are arranged in the two first through holes, the clamping balls are arranged at the left ends of the two inserting rods, second through holes are formed in the left sides of the two inserting rods, the inserting bolts penetrate through the second through holes in a matched mode, the first connecting rods are connected between the right ends of the upper inserting rods and the lower inserting rods, the first frame body is arranged on the right side of the first connecting rod, the first frame body is arranged at the bottom of the first frame body, the screen plate is provided with the top plate on the right side of the screen plate, support right flank upper portion is equipped with the slide, the slide top is equipped with branch, the plastic ball is installed on the branch top, the plastic ball contacts with otter board bottom, bottom plate right side top is equipped with the support frame, the lower part of support frame is equipped with primary shaft bearing, primary shaft bearing left and right sides face middle part all is equipped with places the board, two are placed and all have been placed first collection frame on the board, the mid-mounting of support frame has the motor, the output shaft of motor has first pivot through the coupling joint, first pivot front end is equipped with the disc, disc lateral surface left and right sides symmetry formula is equipped with the cam, the top of support frame is equipped with the second framework, it has the unloading hole to open in second framework bottom left side, it has the mounting groove to open in the middle of the second framework outsole portion, be equipped with the slide rail in the middle of the mounting groove top, the gliding style is equipped with rather than the complex slider on the slide rail, the slider bottom is equipped with the baffle.

The invention further comprises a guide rod, a guide sleeve, a second connecting rod and a third connecting rod, wherein the guide rod is arranged at the upper part of the front side surface of the support frame, the guide sleeve is arranged on the guide rod, the second connecting rod and the third connecting rod are rotatably arranged on the guide sleeve, the tail end of the second connecting rod is rotatably connected with the eccentric position of the front side surface of the disc, and the tail end of the third connecting rod is rotatably connected with the bottom of the baffle.

As a preferred technical scheme of the invention, the device also comprises a small belt pulley, a second bearing seat, a rotating rod, a large belt pulley, a thin plate and a flat belt, wherein the small belt pulley is arranged in the middle of the first rotating shaft and is positioned at the rear side of the disc, the second bearing seat is arranged at the lower part of the front side surface of the support frame, the rotating rod is connected with a bearing in the second bearing seat, the large belt pulley is arranged in the middle of the rotating rod, the flat belt is wound between the large belt pulley and the small belt pulley, and the thin plate is uniformly arranged at the front end of the rotating rod at intervals.

As a preferred technical scheme, the device also comprises a second collecting frame and an inclined plate, wherein the second collecting frame is arranged at the top of the bottom plate and is positioned at the right side of the bracket, the inclined plate is connected with the lower part of the right side surface of the bracket, and a third through hole is formed in the inclined plate and is positioned above the second collecting frame.

As a preferred technical scheme, the anti-skidding frame further comprises a spring, a blanking plate and an anti-skidding bolt, wherein a first groove is formed in the middle of the right side of a blanking hole, the blanking plate is arranged in the first groove, the spring is connected between the right side face of the blanking plate and the right side of the first groove, a threaded hole is formed in the lower portion of the left side of the second frame body, the anti-skidding bolt is arranged in the threaded hole, and the right end of the anti-skidding bolt is in contact with the left side face of the blanking plate.

As a preferred technical scheme of the invention, the novel storage rack further comprises an elastic sheet and a clamping rod, wherein a second groove is formed in the right end of the bottom plate, the elastic sheet is arranged in the second groove, the tail end of the elastic sheet is connected with the clamping rod, and fixing grooves matched with the tops of the clamping rod are formed in the bottoms of the two placing plates.

When the working personnel need screen the rape seed, at first pour the rape seed of waiting to screen into in the second frame, the starter motor, the motor will rotate clockwise, the clockwise rotation of motor will drive first pivot clockwise, the rotation of first pivot will drive the disc clockwise rotation, the cam about the disc will also be driven and do clockwise rotation, promote the baffle manually, make the rape seed get into first frame through the unloading hole, because the roof is connected with the otter board, when the roof is touched to the cam, will drive the otter board upward movement, and then drive whole first frame upward movement, when the cam does not contact with the roof, whole first frame will move down mutually, thereby reach the effect that first frame rocked from top to bottom, can improve the screening efficiency to the rape seed. Because first framework bottom is equipped with the otter board, consequently can filter the rape seed, the rape grain will fall into the slide through the otter board on, along slide landing to first collection frame in, because be equipped with branch on the slide, be equipped with the plastic ball on the branch, the plastic ball contacts with the otter board bottom again, consequently can play the emergence that reduces the condition that the otter board is blockked up by impurity, and can make the otter board vibrations to the rape seed that the messenger was not screened can be screened out through the otter board. Because first framework is connected with the head rod, and the head rod is connected with two inserted bars again, the inserted bar passes the first through-hole on the connecting plate, and two inserted bars are connected through the plug, consequently when piling up too much impurity on the otter board, the staff can be with the hand and dial the plug open, makes the plug leave the second through-hole, because the connecting plate is connected with the support rotary type again, consequently can make the rotatory rubbish that will be in the otter board of first framework clear up by hand, can put back the second through-hole with the plug after the clearance and fix the inserted bar, filter the rape seed again. When the first collecting frame on the left side is fully collected by the rapeseeds, a worker can rotate the first collecting frame on the right side to the left side by hands, then process the rapeseeds filled in the first collecting frame by hands, and place the first collecting frame on the placing plate after the processing, and the operation is repeated, so that the worker can store the pure rapeseeds quickly and conveniently.

When the motor clockwise rotates, will drive first pivot clockwise, first pivot clockwise finally will drive the disc clockwise, when the second connecting rod is promoted downwards, the slider downstream, this will drive third connecting rod downstream, make the baffle by the pulling right side movement, open the unloading hole, when the second connecting rod upwards is promoted, the slider also can upward movement on the slide rail, this will drive third connecting rod upward movement, because the one end and the baffle bottom rotary type of third connecting rod are connected, and then promote the baffle and move left and block the unloading hole, this period that enables the unloading comes indirect control through the motor.

When the clockwise rotation of motor, will drive the belt pulley rotation of little, the belt pulley rotation of little drives big belt pulley through the flat belt and rotates, and big belt pulley rotates and drives the bull stick and rotate, and the bull stick rotates and drives the sheet metal clockwise rotation, so when the rape seed of selecting slided down from the slide, the wind that the rotation of sheet metal produced still adulterated in with the rape seed can be blown away, reaches the effect of secondary screening.

When the sheet metal rotates and blows away impurity, the impurity blown away wafts left, falls into the swash plate at last, because the relation of gravity, will slide to the third through-hole downwards, and impurity falls to the second through-hole through the third through-hole and collects the frame, and the staff can carry the second to collect the frame and handle the impurity of the inside at last and then put and continue to collect impurity under the third through-hole again, and this is convenient for again in the processing of screening process to impurity.

The staff can control the speed of unloading through promoting anti-skidding bolt, when reducing unloading speed, just move left with the wrench movement anti-skidding bolt, the length that the speed that can reduce as required carries out the pulling, because anti-skidding bolt moves left, because the spring has the elasticity that resumes former length, consequently the elasticity left of spring will promote the unloading board and block partial unloading hole left, reach the speed that slows down the unloading, can on the same principle, when the speed that needs quicken the unloading, move right with the wrench movement anti-skidding bolt, the spring is compressed, the unloading board is also promoted and moves right, make the area increase in unloading hole, and then increase unloading speed.

When the staff rotated the left side with the first collection frame on right side with the hand, when the left first collection frame rotated the right side, in order to prevent that first collection frame vibrations from letting the rape seed spill out when rotating, caused the waste to the rape seed, therefore was equipped with the fixed slot placing the board bottom, consequently fixed slot and kelly cooperation reach the fixed effect of placing the board when rotating, reduced the range of vibrations when rotating, and then reached reduce cost's effect.

Compared with the prior art, the invention has the following advantages: according to the invention, through the action of the first frame body and the screen plate, rapeseeds falling from the second frame body can be screened, people do not need to use a sieve for screening, the screening efficiency is improved, residual impurities in the rapeseeds can be blown away through wind power generated by the thin plate, the secondary screening effect is achieved, and through the action of the fixed groove and the clamping rod, the fixed damping effect can be achieved on the first collection frame, so that waste caused by the fact that the rapeseeds are sprayed out is prevented.

Drawings

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

Fig. 2 is a first partial schematic front view structure of the present invention.

Fig. 3 is a second partial schematic front view structure of the present invention.

Fig. 4 is a third partial schematic front view structure of the present invention.

In the reference symbols: 1. the device comprises a base plate, a support, a connecting plate, a first through hole, a second through hole, a connecting plate, a first through hole, a plug rod, a second through hole, a plug pin, a first connecting rod, a screen plate, a first frame body, a top plate, a sliding plate, a supporting rod, a plastic ball, a supporting frame, a first bearing seat, a placing plate, a first collecting frame, a motor, a first rotating shaft, a disc, a cam, a second frame body, a discharging hole, a mounting groove, a sliding rail, a sliding block, a baffle, a guide rod, a guide sleeve, a second connecting rod, a third connecting rod, a small belt pulley, a second bearing seat, a rotating rod, a large belt pulley, a thin plate, a flat belt, a second collecting frame, a inclined plate, a swash plate, a third through hole, a connecting rod, a connecting plate, a small belt, a rotating shaft, a rotating rod, a rotating shaft, 44. the spring, 45, the blanking plate, 46, the threaded hole, 47, the anti-skidding bolt, 48, the second groove, 49, the elastic sheet, 50, the clamping rod and 51, the fixing groove.

Detailed Description

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

Example 1

A rapeseed screening machine is shown in figures 1-4 and comprises a bottom plate 1, a bracket 2, a connecting plate 3, inserted rods 5, clamping balls 6, a plug 8, a first connecting rod 9, a screen plate 10, a first frame body 11, a top plate 12, a sliding plate 13, a support rod 14, plastic balls 15, a support frame 16, a first bearing seat 17, a placing plate 18, a first collecting frame 19, a motor 20, a first rotating shaft 21, a disc 22, a cam 23, a second frame body 24, a sliding rail 27, a sliding block 28 and a baffle 29, wherein the left side of the top of the bottom plate 1 is provided with the bracket 2, the top end of the bracket 2 is rotatably connected with the connecting plate 3, the connecting plate 3 is provided with two first through holes 4, the inserted rods 5 are arranged in the two first through holes 4, the clamping balls 6 are arranged at the left ends of the two inserted rods 5, the second through holes 7 are arranged at the left sides of the two inserted rods 5, the plug 8 is arranged in the second through holes 7 in a matching way, the first connecting rod 9 is connected between the right ends of the inserted rods 5 at the upper side and the lower side, a first frame body 11 is arranged on the right side of a first connecting rod 9, a screen plate 10 is arranged at the bottom of the first frame body 11, a top plate 12 is arranged on the right side of the screen plate 10, a sliding plate 13 is arranged on the upper portion of the right side face of a support 2, a supporting rod 14 is arranged at the top of the sliding plate 13, a plastic ball 15 is arranged at the top end of the supporting rod 14, the plastic ball 15 is contacted with the bottom of the screen plate 10, a supporting frame 16 is arranged at the top of the right side of a bottom plate 1, a first bearing seat 17 is arranged at the lower portion of the supporting frame 16, placing plates 18 are arranged in the middle portions of the left side face and the right side face of the first bearing seat 17, first collecting frames 19 are respectively placed on the two placing plates 18, a motor 20 is arranged in the middle portion of the supporting frame 16, an output shaft of the motor 20 is connected with a first rotating shaft 21 through a coupling, a disc 22 is arranged at the front end of the first rotating shaft 21, cams 23 are symmetrically arranged on the left side face of the outer side of the disc 22, a second frame body 24 is provided with a second frame body 24, a blanking hole 25, the middle of the outer bottom of the second frame 24 is provided with a mounting groove 26, the middle of the top of the mounting groove 26 is provided with a slide rail 27, the slide rail 27 is slidably provided with a slide block 28 matched with the slide rail 27, and the bottom of the slide block 28 is provided with a baffle 29.

Example 2

The device is characterized by further comprising a guide rod 30, a guide sleeve 31, a second connecting rod 32 and a third connecting rod 33, wherein the guide rod 30 is arranged on the upper portion of the front side face of the support frame 16, the guide sleeve 31 is arranged on the guide rod 30, the second connecting rod 32 and the third connecting rod 33 are rotatably arranged on the guide sleeve 31, the tail end of the second connecting rod 32 is rotatably connected with the eccentric position of the front side face of the disc 22, and the tail end of the third connecting rod 33 is rotatably connected with the bottom of the baffle 29.

Example 3

The novel rotary table further comprises a small belt pulley 34, a second bearing seat 35, a rotary rod 36, a large belt pulley 37, a thin plate 38 and a flat belt 39, the small belt pulley 34 is arranged in the middle of the first rotary shaft 21, the small belt pulley 34 is located on the rear side of the disc 22, the second bearing seat 35 is arranged on the lower portion of the front side face of the support frame 16, the rotary rod 36 is connected with a bearing in the second bearing seat 35, the large belt pulley 37 is arranged in the middle of the rotary rod 36, the flat belt 39 is wound between the large belt pulley 37 and the small belt pulley 34, and the thin plate 38 is evenly arranged at the front end of the rotary rod 36 at intervals.

Example 4

The novel bracket is characterized by further comprising a second collecting frame 40 and an inclined plate 41, wherein the second collecting frame 40 is placed on the top of the bottom plate 1, the second collecting frame 40 is located on the right side of the bracket 2, the inclined plate 41 is connected to the lower portion of the right side face of the bracket 2, a third through hole 42 is formed in the inclined plate 41, and the third through hole 42 is located above the second collecting frame 40.

Example 5

Still including spring 44, lower flitch 45 and anti-skidding bolt 47, open at the right side middle part of unloading hole 25 has first recess 43, is equipped with down flitch 45 in the first recess 43, is connected with spring 44 between lower flitch 45 right flank and the first recess 43 right side, and open the left side lower part of second framework 24 has screw hole 46, is equipped with anti-skidding bolt 47 in the screw hole 46, and anti-skidding bolt 47 right-hand member contacts with lower flitch 45 left surface.

Still including shell fragment 49 and kelly 50, it has second recess 48 to open in the bottom plate 1 right-hand member, is equipped with shell fragment 49 in the second recess 48, and shell fragment 49 trailing end connection has kelly 50, and two are placed board 18 bottoms and all are opened with kelly 50 top matched with fixed slot 51.

When a worker needs to screen rapeseeds, firstly, the rapeseeds to be screened are poured into the second frame body 24, the motor 20 is started, the motor 20 rotates clockwise, the clockwise rotation of the motor 20 drives the first rotating shaft 21 to rotate clockwise, the rotation of the first rotating shaft 21 drives the disc 22 to rotate clockwise, the left cam 23 and the right cam 23 of the disc 22 are also driven to rotate clockwise, the baffle plate 29 is manually pushed, and the rapeseeds enter the first frame body 11 through the blanking hole 25, because the top plate 12 is connected with the screen plate 10, when the cam 23 touches the top plate 12, the screen plate 10 is driven to move upwards, thereby driving the whole first frame body 11 to move upwards, when the cam 23 is not contacted with the top plate 12, the whole first frame body 11 will move downwards, therefore, the effect that the first frame body 11 shakes up and down is achieved, the first frame body 11 shakes up and down, and the screening efficiency of the rapeseeds can be improved. Because the screen plate 10 is arranged at the bottom of the first frame body 11, rapeseeds can be filtered, rape grains can fall onto the sliding plate 13 through the screen plate 10 and slide into the first collection frame 19 along the sliding plate 13, because the sliding plate 13 is provided with the supporting rod 14, the supporting rod 14 is provided with the plastic ball 15, and the plastic ball 15 is contacted with the bottom of the screen plate 10, the occurrence that the screen plate 10 is blocked by impurities can be reduced, the screen plate 10 can be vibrated, and the rapeseeds which are not screened out can be screened out through the screen plate 10. Because the first frame body 11 is connected with the first connecting rod 9, the first connecting rod 9 is connected with the two inserting rods 5, the inserting rods 5 penetrate through the first through holes 4 on the connecting plate 3, the two inserting rods 5 are connected through the inserting bolts 8, when excessive impurities are accumulated on the screen plate 10, a worker can pull the inserting bolts 8 by hand to enable the inserting bolts 8 to leave the second through holes 7, and because the connecting plate 3 is rotatably connected with the support 2, the first frame body 11 can be manually rotated to clean garbage on the screen plate 10, the inserting bolts 8 can be replaced into the second through holes 7 to fix the inserting rods 5 after cleaning, and then rapeseeds are screened. When the first collecting frame 19 on the left side is fully collected by the rapeseeds, the worker can rotate the first collecting frame 19 on the right side to the left side by hands, then process the rapeseeds filled in the first collecting frame 19 by hands, place the first collecting frame 19 on the placing plate 18 after the processing, and repeatedly, the worker can store the pure rapeseeds quickly and conveniently.

When the motor 20 rotates clockwise, the first rotating shaft 21 is driven to rotate clockwise, the first rotating shaft 21 rotates clockwise to finally drive the disc 22 to rotate clockwise, when the second connecting rod 32 is pushed downwards, the sliding block 28 moves downwards, the sliding block drives the third connecting rod 33 to move downwards, the baffle 29 is pulled to move rightwards, the blanking hole 25 is opened, when the second connecting rod 32 is pushed upwards, the sliding block 28 also moves upwards on the sliding rail 27, the sliding block drives the third connecting rod 33 to move upwards, because one end of the third connecting rod 33 is rotatably connected with the bottom of the baffle 29, the baffle 29 is further pushed to move leftwards to block the blanking hole 25, and the blanking period can be indirectly controlled through the motor 20.

When the motor 20 rotates clockwise, the small belt pulley 34 is driven to rotate, the small belt pulley 34 rotates to drive the large belt pulley 37 to rotate through the flat belt 39, the large belt pulley 37 rotates to drive the rotating rod 36 to rotate, and the rotating rod 36 rotates to drive the thin plate 38 to rotate clockwise, so that when screened rapeseeds slide down from the sliding plate 13, the impurities still doped in the rapeseeds can be blown away by wind generated by rotation of the thin plate 38, and the effect of secondary screening is achieved.

When the thin plate 38 rotates to blow away impurities, the blown impurities float to the left and finally fall into the inclined plate 41, the impurities slide downwards to the third through hole 42 due to the gravity, the impurities fall to the second collecting frame 40 through the third through hole 42, and finally, a worker can lift the second collecting frame 40 to process the impurities in the second collecting frame 40 and then place the impurities below the third through hole 42 to continuously collect the impurities, so that the impurities can be conveniently processed in the screening process.

The staff can control the speed of unloading through promoting anti-skidding bolt 47, when will reducing unloading speed, just twist anti-skidding bolt 47 with the hand and move left, the length that can reduce as required speed carries out the pulling, because anti-skidding bolt 47 moves left, because spring 44 has the elasticity of recovering original length, consequently spring 44 elasticity left will promote down flitch 45 and block partial unloading hole 25 left, reach the speed that slows down the unloading, the same reason can, when the speed that needs accelerate the unloading, twist anti-skidding bolt 47 with the hand and move right, spring 44 is compressed, unloading board 45 is also promoted to move right, make the area increase of unloading hole 25, and then increase unloading speed.

When the worker rotates the first collecting frame 19 on the right side to the left side by hand, and when the first collecting frame 19 on the left side rotates to the right side, in order to prevent the first collecting frame 19 from vibrating to spill rapeseeds when rotating, waste of rapeseeds is caused, therefore, the fixing groove 51 is arranged at the bottom of the placing plate 18, and when rotating, the fixing groove 51 is matched with the clamping rod 50 to achieve the effect of fixedly placing the plate 18, so that the vibration amplitude during rotation is reduced, and further the cost is reduced.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A rapeseed screening machine comprises a bottom plate (1), a support (2), a connecting plate (3), inserted rods (5), clamping balls (6), plug bolts (8), first connecting rods (9), a screen plate (10), first frame bodies (11) and a top plate (12), wherein the support (2) is arranged on the left side of the top of the bottom plate (1), the connecting plate (3) is rotatably connected to the top end of the support (2), two first through holes (4) are formed in the connecting plate (3), the inserted rods (5) are arranged in the two first through holes (4), the clamping balls (6) are arranged at the left ends of the two inserted rods (5), second through holes (7) are formed in the left sides of the two inserted rods (5), the plug bolts (8) are arranged in the second through holes (7) in a matched mode, the first connecting rods (9) are connected between the right ends of the inserted rods (5) on the upper side and the lower side, the first frame bodies (11) are arranged on the right sides of the first connecting rods (9), the net plate (10) is arranged at the bottom of the first frame body (11), the top plate (12) is arranged on the right side of the net plate (10), and the net plate is characterized by further comprising a sliding plate (13), a supporting rod (14), plastic balls (15), a supporting frame (16), a first bearing seat (17), a placing plate (18), a first collecting frame (19), a motor (20), a first rotating shaft (21), a disc (22), a cam (23), a second frame body (24), a sliding rail (27), a sliding block (28) and a baffle plate (29), the sliding plate (13) is arranged on the upper portion of the right side face of the support (2), the supporting rod (14) is arranged at the top of the sliding plate (13), the plastic balls (15) are mounted at the top end of the supporting rod (14), the plastic balls (15) are in contact with the bottom of the net plate (10), the supporting frame (16) is arranged at the top of the right side of the bottom plate (1), the first bearing seat (17) is arranged at the lower portion of the supporting frame (16), the placing plate (18) is arranged in the middle portions of the left side face and the right side face of the first bearing seat (17), the two placing plates (18) are respectively provided with a first collecting frame (19), the middle of the supporting frame (16) is provided with a motor (20), an output shaft of the motor (20) is connected with a first rotating shaft (21) through a coupler, the front end of the first rotating shaft (21) is provided with a disc (22), the left side and the right side of the outer side surface of the disc (22) are symmetrically provided with cams (23), the top end of the supporting frame (16) is provided with a second frame body (24), the left side of the bottom of the second frame body (24) is provided with a blanking hole (25), the middle of the outer bottom of the second frame body (24) is provided with a mounting groove (26), the middle of the top of the mounting groove (26) is provided with a sliding rail (27), the sliding rail (27) is provided with; the device is characterized by further comprising a guide rod (30), a guide sleeve (31), a second connecting rod (32) and a third connecting rod (33), wherein the guide rod (30) is arranged at the upper part of the front side surface of the support frame (16), the guide sleeve (31) is arranged on the guide rod (30), the second connecting rod (32) and the third connecting rod (33) are rotatably arranged on the guide sleeve (31), the tail end of the second connecting rod (32) is rotatably connected with the eccentric position of the front side surface of the disc (22), and the tail end of the third connecting rod (33) is rotatably connected with the bottom of the baffle (29; still including belt pulley (34) for small, second bearing frame (35), bull stick (36), big belt pulley (37), sheet metal (38) and flat belt (39), first pivot (21) middle part is equipped with belt pulley for small (34), belt pulley for small (34) are located disc (22) rear side, support frame (16) leading flank lower part is equipped with second bearing frame (35), bearing in bull stick (36) and second bearing frame (35) is connected, bull stick (36) middle part is equipped with big belt pulley (37), around having flat belt (39) between big belt pulley (37) and belt pulley for small (34), the even spaced sheet metal (38) that is equipped with of bull stick (36) front end.

2. The rapeseed screening machine according to claim 1, further comprising a second collecting frame (40) and an inclined plate (41), wherein the second collecting frame (40) is placed on the top of the bottom plate (1), the second collecting frame (40) is located on the right side of the bracket (2), the inclined plate (41) is connected to the lower portion of the right side face of the bracket (2), a third through hole (42) is formed in the inclined plate (41), and the third through hole (42) is located above the second collecting frame (40).

3. The rapeseed screening machine according to claim 2, characterized by further comprising a spring (44), a blanking plate (45) and an anti-slip bolt (47), wherein a first groove (43) is formed in the middle of the right side of the blanking hole (25), the blanking plate (45) is arranged in the first groove (43), the spring (44) is connected between the right side of the blanking plate (45) and the right side of the first groove (43), a threaded hole (46) is formed in the lower portion of the left side of the second frame body (24), the anti-slip bolt (47) is arranged in the threaded hole (46), and the right end of the anti-slip bolt (47) is in contact with the left side of the blanking plate (45).

4. The rapeseed screening machine according to claim 3, characterized by further comprising a spring plate (49) and a clamping rod (50), a second groove (48) is formed in the right end of the bottom plate (1), the spring plate (49) is arranged in the second groove (48), the clamping rod (50) is connected to the tail end of the spring plate (49), and fixing grooves (51) matched with the tops of the clamping rod (50) are formed in the bottoms of the two placing plates (18).