CN216631562U

CN216631562U - Sieve separator for agricultural production

Info

Publication number: CN216631562U
Application number: CN202220032123.3U
Authority: CN
Inventors: 刘绍菊
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-07
Filing date: 2022-01-07
Publication date: 2022-05-31
Anticipated expiration: 2032-01-07

Abstract

The utility model discloses a screening machine for agricultural production, relates to the technical field of agricultural screening machinery, and aims to solve the problem that impurity particles can be clamped in sieve pores of a sieve plate when the existing screening machine for agricultural production is used, so that screening efficiency is reduced. The multi-stage material screening device is novel in structure, can clean each screen mesh of the screen plate, improves the separation and screening efficiency, reduces the cleaning difficulty of the screen, improves the agricultural production efficiency, and simultaneously realizes the function of multi-stage material screening.

Description

Screening machine for agricultural production

Technical Field

The utility model relates to the technical field of agricultural screening machinery, in particular to a screening machine for agricultural production.

Background

The screening machine is important equipment for agricultural production, can divide crops into multiple grades according to the volume through the screening of screening machine, is convenient for the production and processing of crops, has improved agricultural production's efficiency greatly, promotes the development of agriculture.

Present sieve separator for agricultural production uses the vibrations sieve separator mostly, because the vibrations dynamics of vibrations sieve separator is less, can block in the sieve mesh of sieve with the impurity granule that the mesh size is the same, leads to separating the efficiency reduction of screening to the clearance degree of difficulty of sieve increases, reduces agricultural production's efficiency. Therefore, in order to solve such problems, we propose a screening machine for agricultural production.

SUMMERY OF THE UTILITY MODEL

The screening machine for agricultural production provided by the utility model solves the problem that impurity particles can be clamped in sieve pores of a sieve plate when the existing screening machine for agricultural production is used, so that the screening efficiency is reduced.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a screening machine for agricultural production comprises a screening box, a screening plate and a reciprocating screw rod, wherein the screening plate is fixedly arranged on the side wall inside the screening box, and the reciprocating screw rod is rotatably arranged between the side walls inside the screening box along the length direction of the screening plate;

the screening box is a box body with an opening at the bottom, a feed inlet is formed in the bottom end of the screening box, a discharge outlet matched with the sieve plate is formed in the side wall of the screening box, and supporting legs are fixedly mounted at four corners of the bottom end of the screening box;

the three sieve plates are arranged in an inclined manner, the bottom ends of the sieve plates extend to the outside of the discharge hole, and cleaning mechanisms are arranged below the three sieve plates;

reciprocating screw rod is provided with two, reciprocating screw rod's the fixed cover of screening case is run through to the one end and is equipped with the belt pulley, two be connected with driving belt between the belt pulley, screening case lateral wall fixed mounting has the motor, one of them reciprocating screw rod and the output shaft fixed connection of motor, reciprocating screw rod thread bush is equipped with the screw thread piece, there is the dead lever that is symmetric distribution along sieve length direction fixed mounting between the inside lateral wall of screening case, the dead lever slides the cover and is equipped with the movable block, homonymy fixedly connected with bracing piece between dead lever and the movable block, bracing piece and clearance mechanism sliding connection.

Preferably, the cleaning mechanism comprises supporting blocks, sliding rails, supporting plates, reset springs, rotating shafts, gears, racks, rotating wheels, bumps, thimbles and limiting rods, the limiting rods are symmetrically arranged between the side walls inside the screening box along the length direction of the screening plate, the limiting rods are slidably sleeved with the supporting blocks, the supporting blocks on the same side are slidably connected with the supporting rods, the sliding rails are fixedly arranged at the top ends of the supporting blocks, the supporting plates are slidably arranged between the two sliding rails along the vertical direction, the reset springs are connected between the top ends of the supporting plates and the top ends inside the sliding rails, the rotating shafts are rotatably arranged on the side walls, far away from each other, of the two supporting blocks, the gears and the rotating wheels are fixedly sleeved on the rotating shafts, the rotating wheels are positioned between the gears and the supporting blocks, the side walls inside the screening box are fixedly provided with the racks along the length direction of the screening plate, the racks are meshed with the gears, the circumference lateral wall fixed mounting of runner has the lug that is annular array distribution, lug and runner all with the bottom sliding connection of backup pad, backup pad top fixed mounting has the thimble that is evenly distributed.

Preferably, the rack and the limiting rod are arranged in parallel with the sieve plate, and the sieve plate is located between the reciprocating screw rod and the fixing rod.

Preferably, collecting boxes are placed below the bottom ends of the three sieve plates and below the bottoms of the sieve plates, and protection plates are fixedly mounted on two sides of the top ends of the three sieve plates.

Preferably, the length of the three sieve plates is shortened from top to bottom in sequence, and the size of the sieve holes of the three sieve plates is reduced from top to bottom in sequence.

The utility model has the beneficial effects that:

1. through setting up three sieve, and the sieve mesh size of three sieve is different with length, can carry out multistage screening to the material to can increase the screening precision, through setting up the guard plate, can prevent that the material from sieve both sides landing.

2. Through setting up reciprocal lead screw, make the backup pad carry out reciprocating motion in the sieve below, the sieve mesh of each department of sieve can be cleared up to the thimble, does not influence the sieve separator simultaneously and sieves, through setting up clearance mechanism, the backup pad is moving the in-process, and reset spring promotes the backup pad when cam is rotatory and reciprocates, realizes the thimble top and goes into the sieve mesh, breaks away from the process of sieve mesh to the granule of sieve mesh is gone into to the clearance card.

In conclusion, when the device is used for screening, each screen mesh of the screen plate can be cleaned, the separation and screening efficiency is improved, the cleaning difficulty of the screen mesh is reduced, the agricultural production efficiency is improved, and the function of multi-stage screening of materials is realized.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic structural view of the cleaning mechanism of the present invention;

fig. 4 is a side view of the present invention.

Reference numbers in the figures: 1. a screening box; 2. a sieve plate; 3. a reciprocating screw rod; 4. a thread block; 5. fixing the rod; 6. a moving block; 7. a support bar; 8. a motor; 9. a pulley; 10. a support block; 11. A slide rail; 12. a support plate; 13. a return spring; 14. a rotating shaft; 15. a gear; 16. a rack; 17. a rotating wheel; 18. a bump; 19. a thimble; 20. a protection plate; 21. a feed inlet; 22. A collection box; 23. a discharge port; 24. a limiting rod.

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.

Refer to fig. 1, fig. 2 and fig. 4, a sieve separator for agricultural production, including screening case 1, sieve 2 and reciprocal lead screw 3, three sieve 2 of the inside lateral wall fixed mounting of screening case 1, three sieve 2 is the slope setting, the outside of three sieve 2 bottoms extension to

discharge gate

23, 2 top both sides fixed mounting of three sieve have guard plate 20, the length of three sieve 2 is followed and is down shortened in proper order, the sieve mesh size of three sieve 2 is followed and is down reduced in proper order, screening case 1 is equipped with the open-ended box for the bottom, feed inlet 21 has been seted up to screening case 1 bottom, screening case 1 lateral wall seted up with sieve 2 assorted

discharge gate

23, 1 bottom four corners fixed mounting of screening case has the supporting legs, collecting box 22 has all been placed to 2 bottom below of three sieve and 1 bottom below of screening case.

Install reciprocal lead screw 3 along 2 length direction rotations of sieve between the inside lateral wall of screening case 1, reciprocal lead screw 3 is provided with two, the one end of reciprocal lead screw 3 is run through 1 fixed cover of screening case and is equipped with belt pulley 9, be connected with driving belt between two

belt pulley

9, 1 lateral wall fixed mounting of screening case has motor 8, one of them reciprocal lead screw 3 and motor 8's output shaft fixed connection, 3 thread bush of reciprocal lead screw are equipped with thread block 4, there is the dead lever 5 that is symmetric distribution along 2 length direction fixed mounting of sieve between the inside lateral wall of

screening case

1, 5 slip covers of dead lever are equipped with movable block 6, fixedly connected with bracing piece 7 between the dead lever 5 of homonymy and movable block 6, three sieve 2 is located between reciprocal lead screw 3 and the dead lever 5.

Referring to fig. 2-3, the cleaning mechanisms are arranged below the three sieve plates 2 and each include a support block 10, slide rails 11, a support plate 12, a reset spring 13, a rotating shaft 14, a gear 15, a rack 16, a rotating wheel 17, a convex block 18, a thimble 19 and a limiting rod 24, the limiting rods 24 are symmetrically arranged between the side walls inside the screening box 1 along the length direction of the sieve plates 2, the limiting rods 24 are slidably sleeved with the support blocks 10, the support blocks 10 and the support rods 7 at the same side are slidably connected, the slide rails 11 are fixedly arranged at the top ends of the support blocks 10, the support plates 12 are slidably arranged between the two slide rails 11 along the vertical direction, and the reset springs 13 are connected between the top ends of the support plates 12 and the top ends inside the slide rails 11.

Two supporting shoe 10 lateral wall that keep away from each other rotate and install axis of rotation 14, the fixed cover of axis of rotation 14 is equipped with gear 15 and runner 17, runner 17 is located between gear 15 and the supporting shoe 10, screening case 1 inside lateral wall has rack 16 along 2 length direction fixed mounting of sieve, rack 16 and gag lever post 24 all are parallel arrangement with sieve 2, rack 16 and the meshing of gear 15, the circumference lateral wall fixed mounting of runner 17 has lug 18 that is annular array and distributes, lug 18 and runner 17 all with the bottom sliding connection of

backup pad

12, 12 top fixed mounting of backup pad has thimble 19 that is evenly distributed.

When the device is used, materials to be screened are put into the screening box 1 from the feed inlet 21, the materials enter the collecting box 22 at the bottom of the screening box 1 after being screened in multiple stages by three screening plates 2, the starting motor 8 drives the two reciprocating screw rods 3 to rotate simultaneously through the two belt pulleys 9 and the transmission belt, the two reciprocating screw rods 3 drive the two thread blocks 4 and the moving block 6 to move along the fixed rod 5, so that the supporting rod 7 moves, the supporting rod 7 pushes the supporting block 10 to reciprocate on the limiting rod 24, when the supporting block 10 moves, the gear 15 is meshed with the rack 16 to drive the gear 15 to rotate, the gear 15 drives the rotating wheel 17 to rotate, when the lug 18 is in contact with the supporting plate 12, the supporting plate 12 is pushed to move upwards along the slide rail 11, the thimble 19 is pushed into a screening hole of the screening plate 2, when the lug 18 is out of contact with the supporting plate 12, the reset spring 13 pushes the supporting plate 12 to enable the thimble 19 to be far away from the screening hole of the screening plate 2, when the supporting plate 12 moves, the sieve holes of each sieve plate 2 are cleared, and the function of blocking impurity particles in the sieve holes of the sieve plates 2 is achieved.

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 utility model concepts of the present invention in the scope of the present invention.

Claims

1. A screening machine for agricultural production comprises a screening box (1), a screen plate (2) and a reciprocating screw rod (3), and is characterized in that the screen plate (2) is fixedly installed on the inner side wall of the screening box (1), and the reciprocating screw rod (3) is rotatably installed between the inner side walls of the screening box (1) along the length direction of the screen plate (2);

the screening box (1) is a box body with an opening at the bottom, a feeding hole (21) is formed in the bottom end of the screening box (1), a discharging hole (23) matched with the sieve plate (2) is formed in the side wall of the screening box (1), and supporting legs are fixedly mounted at four corners of the bottom end of the screening box (1);

the three sieve plates (2) are arranged, the sieve plates (2) are arranged in an inclined manner, the bottom ends of the sieve plates (2) extend to the outside of the discharge hole (23), and cleaning mechanisms are arranged below the three sieve plates (2);

reciprocating screw rod (3) are provided with two, the one end of reciprocating screw rod (3) is run through screening case (1) fixed cover and is equipped with belt pulley (9), two be connected with driving belt between belt pulley (9), screening case (1) lateral wall fixed mounting has motor (8), one of them reciprocating screw rod (3) and the output shaft fixed connection of motor (8), reciprocating screw rod (3) thread bush is equipped with thread block (4), there is dead lever (5) that are symmetric distribution along sieve (2) length direction fixed mounting between the inside lateral wall of screening case (1), dead lever (5) slip cap is equipped with movable block (6), the homonymy fixedly connected with bracing piece (7) between dead lever (5) and movable block (6), bracing piece (7) and clearance mechanism sliding connection.

2. The screening machine for agricultural production according to claim 1, wherein the cleaning mechanism comprises support blocks (10), slide rails (11), support plates (12), return springs (13), a rotating shaft (14), gears (15), racks (16), rotating wheels (17), bumps (18), thimbles (19) and limiting rods (24), the limiting rods (24) which are symmetrically distributed are fixedly installed between the inner side walls of the screening box (1) along the length direction of the screen plate (2), the support blocks (10) are slidably sleeved on the limiting rods (24), the support blocks (10) on the same side are slidably connected with the support rods (7), the slide rails (11) are fixedly installed at the top ends of the support blocks (10), the support plates (12) are slidably installed between the two slide rails (11) along the vertical direction, the return springs (13) are connected between the top ends of the support plates (12) and the inner top ends of the slide rails (11), two lateral wall that supporting shoe (10) kept away from each other rotates installs axis of rotation (14), the fixed cover in axis of rotation (14) is equipped with gear (15) and runner (17), runner (17) are located between gear (15) and supporting shoe (10), screening case (1) inside lateral wall has rack (16) along sieve (2) length direction fixed mounting, rack (16) and gear (15) meshing, the circumference lateral wall fixed mounting of runner (17) has lug (18) that are the annular array and distribute, lug (18) and runner (17) all with the bottom sliding connection of backup pad (12), backup pad (12) top fixed mounting has thimble (19) that are evenly distributed.

3. The screening machine for agricultural production according to claim 2, characterized in that the rack (16) and the limiting rod (24) are both arranged in parallel with the screen plates (2), and three screen plates (2) are arranged between the reciprocating screw rod (3) and the fixing rod (5).

4. The screening machine for agricultural production according to claim 1, wherein collecting boxes (22) are respectively placed below the bottom ends of the three screen plates (2) and the bottom of the screening box (1), and protection plates (20) are fixedly arranged on two sides of the top ends of the three screen plates (2).

5. The screening machine for agricultural production according to claim 1, wherein the length of three screen plates (2) is reduced from top to bottom, and the size of the screen holes of three screen plates (2) is reduced from top to bottom.