CN209810667U

CN209810667U - Rice sieving mechanism

Info

Publication number: CN209810667U
Application number: CN201920472700.9U
Authority: CN
Inventors: 丛培文
Original assignee: Shulan Hexin Grain Co Ltd
Current assignee: Shulan Hexin Grain Co Ltd
Priority date: 2019-04-09
Filing date: 2019-04-09
Publication date: 2019-12-20
Anticipated expiration: 2029-04-09

Abstract

The utility model discloses a rice screening device, which comprises a frame, wherein the front part of the frame is provided with a feed hopper, a fan is arranged below the feed hopper, and an air outlet is arranged at the position of a screening box right opposite to the fan; the screening box is divided into a plurality of stages according to different screen openings of the screen of the shaking screen, and the screen openings of the screen are sequentially reduced from front to back in size; the rice screening machine realizes the functions of wind power impurity removal and grading screening of rice through the arranged fan, realizes one-time efficient grading impurity removal of the rice, and improves the screening effect and the screening efficiency; through the screening case that sets up and shake the sieve structure, realized shaking the screening function to the secondary of rice to the efficiency of screening has been improved. Compare current rice sieve separator, this rice sieve separator has realized the multiple processes to the rice, the function of screening in succession, and this rice sieve separator screening ability is stronger simultaneously, and the screening process is simpler, and the screening efficiency is higher, and it is more convenient to use.

Description

Rice sieving mechanism

Technical Field

The utility model relates to a rice sieving mechanism field specifically is a rice sieving mechanism.

Background

Rice is a finished product prepared by rice through the procedures of cleaning, hulling, milling, finishing and the like. The embryo and aleurone layers of the rice contain nearly 64 percent of rice nutrition and more than 90 percent of nutrient elements required by human bodies, and are main food for southern people. The rice contains about 75% of carbohydrate, 7% -8% of protein, 1.3% -1.8% of fat and rich B vitamins. The carbohydrate in the rice is mainly starch, the protein is mainly glutelin, and secondly gliadin and globulin, the biological value of the protein and the composition ratio of amino acid are higher than that of cereal crops such as wheat, barley, millet, corn and the like, the digestibility is 66.8-83.1%, and the carbohydrate is also one of the cereal proteins.

The conventional rice screening machine can only treat rice in a single process of grading or impurity removal, cannot carry out impurity removal grading treatment in multiple processes at one time, cannot meet the requirement of large-batch continuous screening, and has low screening efficiency and unsatisfactory screening effect, so that the invention of the novel rice screening machine becomes a requirement.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rice sieving mechanism to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a rice screening device comprises a rack, wherein a feed hopper is arranged at the front part of the rack, a fan is arranged below the feed hopper, and an air outlet is formed in the position, opposite to a screening box, of the fan; the screening box is divided into a plurality of stages according to different screen openings of the screen of the shaking screen, and the screen openings of the screen are sequentially reduced from front to back in size; the screening box is fixed on the rack through bolts and nuts, the height of the screening box is sequentially reduced from the front, and a shaking screen is arranged below the screening box; universal joints are respectively arranged at four corners of the shaking screen, the lower ends of the universal joints are connected with the shaking screen through bolts and nuts, and the upper ends of the universal joints are connected with the screening box through bolts and nuts; the two sides of the shaking screen are respectively provided with a connecting rod, the outer side of the shaking screen is provided with a shaking frame, the inner side of the shaking frame is provided with a mounting hole, a bearing is arranged in the mounting hole, and the front end of the connecting rod is arranged in the bearing hole; the bottom of the cradle is provided with a slide rail, the rack is provided with a slide groove matched with the cradle, and the cradle is connected with the rack through the matching of the slide rail and the slide groove; a power mechanism is arranged on the front side of the rocking frame and comprises a rocking motor, a cam and a crankshaft connecting rod, the rocking motor is fixed on the frame through a bolt nut, the cam is arranged above the rocking motor and is connected with a rotating shaft of the rocking motor through the bolt nut, the crankshaft connecting rod is arranged above the cam, the rear end of the crankshaft connecting rod is hinged with the cam through the bolt nut, and the front end of the crankshaft connecting rod is hinged with the rocking frame through the bolt nut; a discharging groove is formed in the front side of the rocking screen, the discharging groove is arranged in a forward inclining mode, and a collecting pool is arranged in the front side of the discharging groove; a rice guide groove which is inclined backwards is arranged below the shaking sieve, the rice guide groove is fixed on the rack through bolts and nuts, and the rear side of the rice guide groove is opposite to the next-stage shaking sieve.

As a further aspect of the present invention: the fan comprises an air blower and an air guide cylinder, the air guide cylinder is fixed on the front side of the air blower through bolts and nuts, the air blower is fixed on the rack through bolts and nuts, and the fan is horizontally arranged.

As a further aspect of the present invention: the feeding hopper is internally provided with an auger, the rear side of the auger is provided with a feeding motor, the feeding motor is fixed in the feeding hopper through a bolt and a nut, a rotating shaft of the feeding motor is connected with a rotating shaft of the auger through the bolt and the nut, and the auger is made of plastic.

As a further aspect of the present invention: the shaking screen is of a circular screen type structure, and a screen port of the shaking screen is larger than a box port of the screening box.

As a further aspect of the present invention: and the bottom of the sliding rail is provided with a roller.

Compared with the prior art, the beneficial effects of the utility model are that: the rice screening machine realizes the functions of wind power impurity removal and grading screening of rice through the arranged fan, realizes one-time efficient grading impurity removal of the rice, and improves the screening effect and the screening efficiency; through the screening case that sets up and shake the sieve structure, realized shaking the screening function to the secondary of rice to the efficiency of screening has been improved. Compare current rice sieve separator, this rice sieve separator has realized the multiple processes to the rice, the function of screening in succession, and this rice sieve separator screening ability is stronger simultaneously, and the screening process is simpler, and the screening efficiency is higher, and it is more convenient to use.

Drawings

Fig. 1 is a partial structural schematic view of a rice screening apparatus.

Fig. 2 is a schematic view of a part of the structure of a rice screening apparatus.

Fig. 3 is a schematic structural view of a cradle in the rice screening apparatus.

Fig. 4 is a schematic structural diagram of a power mechanism in the rice screening device.

Fig. 5 is a schematic view of a shaking sieve structure in the rice screening device.

In the figure: the device comprises a frame 1, a feed hopper 2, a fan 3, an air outlet 4, a screening box 5, a feed chute 6, a shaking screen 7, a universal joint 8, a power mechanism 9, a shaking motor 10, a cam 11, a crankshaft connecting rod 12, a shaking frame 13, a chute 14, a slide rail 15, a rice guide chute 16 and a collecting tank 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, in the embodiment of the present invention, a rice screening device includes a frame 1, a feed hopper 2 is disposed at the front of the frame 1, a fan 3 is disposed below the feed hopper 2, the fan 3 includes an air blower 3 and an air duct, the air duct is fixed at the front side of the air blower 3 through bolts and nuts, the air blower 3 is fixed on the frame 1 through bolts and nuts, the fan 3 is horizontally disposed, an air outlet 4 is disposed at a position of a screening box 5 opposite to the fan 3, and the air outlet 4 is used for ventilating and separating light impurities; an auger is arranged in the feed hopper 2, a feeding motor is arranged at the rear side of the auger, the feeding motor is fixed in the feed hopper 2 through a bolt and a nut, a rotating shaft of the feeding motor is connected with a rotating shaft of the auger through the bolt and the nut, and the auger is made of plastic; the auger is used for conveying the rice in the feed hopper 2 forwards; the air blower 3 is used for removing light impurities of the rice and performing wind power separation on the rice according to the mass;

referring to fig. 1, 2, 3 and 5, in the embodiment of the present invention, the screening box 5 is divided into multiple stages according to the sizes of the openings of the screen of the shaker 7, and the sizes of the openings of the screen are sequentially reduced from front to back, so that the principle of the arrangement is that under the action of wind, the rice is distributed from front to back according to the mass from large to small, the front rice grains are large and have large mass, and the back rice grains are small and have small mass; the screening box 5 is fixed on the frame 1 through bolts and nuts, the height of the screening box 5 is sequentially reduced from the front, the shaking sieve 7 is arranged below the screening box 5, the shaking sieve 7 is of a circular sieve type structure, and the sieve opening of the shaking sieve 7 is larger than the box opening of the screening box 5, so that the purpose of setting is to enable all the rice entering the screening box 5 to fall into the shaking sieve 7; universal joints 8 are respectively arranged at four corners of the shaking screen 7, the lower ends of the universal joints 8 are connected with the shaking screen 7 through bolts and nuts, and the upper ends of the universal joints 8 are connected with the screening box 5 through bolts and nuts; two sides of the shaking screen 7 are respectively provided with a connecting rod, the outer side of the shaking screen 7 is provided with a shaking frame 13, the inner side of the shaking frame 13 is provided with a mounting hole, a bearing is arranged in the mounting hole, and the front end of the connecting rod is arranged in the bearing hole; the bottom of the cradle 13 is provided with a slide rail 15, the rack 1 is provided with a chute 14 matched with the cradle 13, the cradle 13 is connected with the rack 1 through the matching of the slide rail 15 and the chute 14, and the bottom of the slide rail 15 is provided with a roller for reducing the friction force between the slide rail 15 and the chute 14;

referring to fig. 1, 2 and 4, in an embodiment of the present invention, a power mechanism 9 is disposed at a front side of the cradle 13, the power mechanism 9 includes a shaking motor 10, a cam 11 and a crankshaft connecting rod 12, the shaking motor 10 is fixed on the frame 1 through a bolt and a nut, the cam 11 is disposed above the shaking motor 10, the cam 11 is connected with a rotating shaft of the shaking motor 10 through a bolt and a nut, the crankshaft connecting rod 12 is disposed above the cam 11, a rear end of the crankshaft connecting rod 12 is hinged to the cam 11 through a bolt and a nut, and a front end of the crankshaft connecting rod 12 is hinged to the cradle 13 through a bolt and a nut; a blanking groove 6 is arranged on the front side of the shaking screen 7, the blanking groove 6 is arranged in a forward inclining mode, and a collecting pool 17 is arranged on the front side of the blanking groove 6; a rice guide groove 16 which is inclined backwards is arranged below the shaking sieve 7, the rice guide groove 16 is fixed on the frame 1 through bolts and nuts, and the rear side of the rice guide groove 16 is opposite to the next-stage shaking sieve 7, so that the aim of setting is to enable smaller rice grains screened by the previous stage to fall into the next-stage shaking sieve 7; the power mechanism 9 is used for pushing the cradle 13 to swing back and forth so as to push the shaking screen 7 to swing back and forth, and screening of the rice is realized;

when the pneumatic rice screening device is used, rice is firstly loaded into the feed hopper 2, then the rice falls into the screening box 5 through the feed hopper 2, the fan 3 rotates to carry out pneumatic screening on the rice while the rice falls, during the pneumatic screening, the rice falls into the screening box 5 at the front side with large rice grains and falls into the screening box 5 at the rear part with small rice grains according to different masses; then the rice falls into shake sieve 7, shakes around shaking sieve 7 through power unit 9 work drive, shakes the great grain of rice of sieve 7 and sieves out and get into collecting pit 17 through silo 6 down, and less grain of rice falls into and shakes sieve 7 behind the rice guide 16.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A rice screening device comprises a rack (1) and is characterized in that a feed hopper (2) is arranged at the front part of the rack (1), a fan (3) is arranged below the feed hopper (2), and an air outlet (4) is formed in the position, opposite to a screening box (5), of the fan (3); the screening box (5) is divided into a plurality of stages according to different screen openings of the screen of the shaking screen (7), and the screen openings of the screen are sequentially reduced from front to back in size; the screening box (5) is fixed on the rack (1) through bolts and nuts, the height of the screening box (5) is sequentially reduced from the front, and a shaking screen (7) is arranged below the screening box (5); universal joints (8) are respectively arranged at four corners of the shaking screen (7), the lower ends of the universal joints (8) are connected with the shaking screen (7) through bolts and nuts, and the upper ends of the universal joints (8) are connected with the screening box (5) through bolts and nuts; two sides of the shaking screen (7) are respectively provided with a connecting rod, the outer side of the shaking screen (7) is provided with a shaking frame (13), the inner side of the shaking frame (13) is provided with a mounting hole, a bearing is arranged in the mounting hole, and the front end of the connecting rod is arranged in the bearing hole; a sliding rail (15) is arranged at the bottom of the rocking frame (13), a sliding groove (14) matched with the rocking frame (13) is arranged on the rack (1), and the rocking frame (13) is connected with the rack (1) through the matching of the sliding rail (15) and the sliding groove (14); a power mechanism (9) is arranged on the front side of the cradle (13), the power mechanism (9) comprises a shaking motor (10), a cam (11) and a crankshaft connecting rod (12), the shaking motor (10) is fixed on the rack (1) through a bolt and a nut, the cam (11) is arranged above the shaking motor (10), the cam (11) is connected with a rotating shaft of the shaking motor (10) through a bolt and a nut, the crankshaft connecting rod (12) is arranged above the cam (11), the rear end of the crankshaft connecting rod (12) is hinged with the cam (11) through a bolt and a nut, and the front end of the crankshaft connecting rod (12) is hinged with the cradle (13) through a bolt and a nut; a discharging groove (6) is formed in the front side of the rocking sieve (7), the discharging groove (6) is arranged in a forward inclining mode, and a collecting pool (17) is arranged in the front side of the discharging groove (6); a rice guide groove (16) which is inclined backwards is arranged below the shaking sieve (7), the rice guide groove (16) is fixed on the frame (1) through bolts and nuts, and the rear side of the rice guide groove (16) is over against the next-stage shaking sieve (7).

2. The rice screening device according to claim 1, wherein the fan (3) comprises a blower (3) and an air duct, the air duct is fixed on the front side of the blower (3) through bolts and nuts, the blower (3) is fixed on the frame (1) through bolts and nuts, and the fan (3) is horizontally arranged.

3. The rice screening device according to claim 1, wherein an auger is arranged in the feed hopper (2), a feeding motor is arranged at the rear side of the auger, the feeding motor is fixed in the feed hopper (2) through a bolt and a nut, a rotating shaft of the feeding motor is connected with a rotating shaft of the auger through a bolt and a nut, and the auger is made of plastic.

4. The rice screening device according to claim 1, wherein the shaking screen (7) is of a round screen type structure, and the screen opening of the shaking screen (7) is larger than the box opening of the screening box (5).

5. A rice screening apparatus as claimed in claim 1, wherein the bottom of the sliding rail (15) is provided with a roller.