CN110639811A

CN110639811A - Impurity removing equipment for grain processing

Info

Publication number: CN110639811A
Application number: CN201910967443.0A
Authority: CN
Inventors: 张笛超
Original assignee: Yongkang Serial Electronics Co Ltd
Current assignee: Yongkang Serial Electronics Co Ltd
Priority date: 2019-10-12
Filing date: 2019-10-12
Publication date: 2020-01-03

Abstract

The invention discloses impurity removing equipment for grain processing, which comprises a vibration box, wherein a vibration cavity is arranged in the vibration box, a dust removing device for removing dust by using airflow is arranged at the left side of the vibration box, a vibration device is arranged in the vibration cavity, a screening box is fixedly connected to the lower side end face of the vibration box, a screening cavity communicated with the dust removing device is arranged in the screening box, a screening device is arranged in the screening cavity, and the screening device removes impurities larger than grain particles by using rotary vibration.

Description

Impurity removing equipment for grain processing

Technical Field

The invention relates to the technical field of grain impurity removal, in particular to impurity removing equipment for grain processing.

Background

Grain processing refers to the act of converting raw grain into semi-finished grain, or semi-finished grain into finished grain, the grain is inevitably mixed with various impurities in the grain particles such as dust, broken pistil, leaf, chaff, shriveled grain, broken seed, stone and the like in the process of harvesting, the impurities are removed during grain storage, the required qualified grains are left, the grains are required to be subjected to impurity removal, the existing impurity removal equipment mainly performs vibration screening and impurity removal on the grains through a vibration device, because the vibration amplitude of the vibration device is difficult to adjust, the operator does not adjust the amplitude basically when in practical use, so that the impurity removing equipment can not be effectively applied to the impurity removal of different grains, the impurity removing effect is unstable, meanwhile, most of impurity removing equipment does not have a dust removing function, and the invention provides equipment capable of solving the problems.

Disclosure of Invention

The technical problem is as follows: the adjustment of the amplitude of the existing impurity removing equipment is complex, so that the impurity removing equipment cannot be effectively applied to the impurity removal of different grains, and the impurity removing effect is unstable.

In order to solve the problems, the impurity removing equipment for processing the grain is designed in the embodiment, and comprises a vibration box, wherein a vibration cavity is arranged in the vibration box, a dust removing device for removing dust by using airflow is arranged on the left side of the vibration box, a vibration device is arranged in the vibration cavity and comprises an electric machine table fixedly connected to the rear end face of the vibration cavity, a motor shaft rotatably connected to the front end face of the motor table and extending forwards into the vibration cavity, a motor dynamically connected to the motor shaft and fixedly connected to the front end face of the motor table, a rotary table fixedly connected to the motor shaft and located in the vibration cavity, threaded holes arranged on the rotary table and communicated left and right, threaded rods penetrating through the threaded holes and connected with the threaded holes in a threaded manner, cranks fixedly connected to the front end face of the threaded rods, a motor shaft fixedly connected to the front end face of the threaded rods, and a motor shaft fixedly connected, The vibration screening device comprises an auxiliary connecting rod hinged on the crank, a cylindrical pin penetrating through the auxiliary connecting rod and connected with the auxiliary connecting rod through a sliding key, a sliding groove arranged on the end face of the front side of the rotary table, and an adjusting block fixedly connected on the end face of the left side of the cylindrical pin and connected with the sliding groove in a sliding manner, wherein the adjusting block is driven to move along the sliding groove by rotating the threaded rod through the crank, the auxiliary connecting rod and the cylindrical pin, so that the distance between the adjusting block and the center of the rotary table can be changed, the length of the crank formed by the adjusting block and the rotary table is changed, the vibration amplitude can be changed, the vibration screening with adjustable amplitude is realized, a screening box is fixedly connected on the end face of the lower side of the vibration box, a screening cavity communicated with the dust removal device is arranged in the screening box, a screening device is arranged in the screening cavity, and the screening device may adjust the amplitude.

Preferably, the vibrating device removes sand impurities smaller than the grain particles by using a vibrating screen, screens the light impurities such as bran shells to the upper layer, and removes the light impurities by the airflow generated by the dust removing device.

Wherein, the dust removing device comprises a throwing funnel which is arranged on the end surface of the upper side of the vibration cavity and is communicated with the vibration cavity, the throwing funnel is connected with a sealing plate in a rotating way at the communicating part of the vibration cavity, the sealing plate can enable the throwing funnel not to be communicated with the vibration cavity, the sealing plate can be abutted against the inner wall of the upper side of the vibration cavity, so that the air flow in the vibration cavity can not push the sealing plate to rotate upwards, the rotating connecting part of the sealing plate is provided with a torsion spring, a gas pump is fixedly connected on the end surface of the right side of the vibration cavity, a spray pipe which extends to the inside of the vibration cavity leftwards is connected on the gas pump in a communicating way, a dust removing box is fixedly connected on the end surface of the left side of the vibration cavity, a dust removing cavity is arranged in the dust removing box, a filter screen is, the water pump is located on the lower side of the filter screen, the inner wall of the rear side of the dust removal cavity is fixedly connected with a water spray pipe located on the upper side of the filter screen, the water spray pipe is communicated with the water pump and is connected with a water pipe, an exhaust pipe communicated with the filter screen is fixedly connected to the end face of the upper side of the dust removal cavity, and a filter for preventing dust from diffusing to the outside through the exhaust pipe is arranged on the exhaust pipe.

Wherein, the vibrating device also comprises a belt wheel which is fixedly connected on the motor shaft and positioned outside the rear end face of the vibrating cavity, the inner wall of the left side of the vibrating cavity is connected with an inclined plane filter plate in a sliding way, the inclined plane filter plate is of a filter screen structure, two fixed cylinders which are bilaterally symmetrical are fixedly connected on the lower end face of the inclined plane filter plate, two fixed blocks which are bilaterally symmetrical are fixedly connected on the inner wall of the rear side of the vibrating cavity, the fixed blocks are positioned on the lower side of the fixed cylinders, a vibrating spring is connected between the fixed blocks and the fixed cylinders, a sliding cylinder positioned between the two fixed cylinders is fixedly connected on the lower end face of the inclined plane filter plate, a sliding block is connected in the sliding cylinder in a sliding way, a compression spring is connected between the sliding block and the inner wall of the upper side of the sliding cylinder, a, fixedly connected with is located on the threaded rod rear end face the knob of carousel rear side, the vice bin of fixedly connected with is gone up to the dust removal chamber lower extreme end face, be equipped with in the vice bin with the vibration chamber communicates with each other and the opening is towards the vice chamber of storing of left side, vice chamber of storing is used for storing granule impurity such as sand after filtering, the carousel the adjusting block the connecting rod with the slider constitutes slider-crank mechanism, the carousel centre of a circle arrives the adjusting block with the distance between the articulated department of connecting rod is equivalent to crank length, consequently through sliding the adjusting block can change crank length to change the vibration range.

Wherein, the screening device comprises a storage box fixedly connected on the left end face of the screening cavity, a storage cavity communicated with the screening cavity is arranged in the storage box, the opening of the storage cavity faces left, the storage cavity and the left opening of the auxiliary storage cavity are rotatably connected with an auxiliary box door, the storage cavity is used for storing impurities larger than grain particles, the opening of the screening cavity faces right, the right opening of the screening cavity is rotatably connected with the box door, a cam shaft which extends forwards and backwards and extends to the outside of the end face of the screening cavity is rotatably connected on the inner wall of the rear side of the screening cavity, an auxiliary belt wheel which is positioned outside the rear end face of the screening cavity is fixedly connected on the cam shaft, a V belt is connected between the auxiliary belt wheel and the belt wheel, a rotating disc which is positioned in the screening cavity is fixedly connected on the cam shaft, and an auxiliary fixing block is fixedly connected on the rear end, the auxiliary fixing block is characterized in that an auxiliary threaded rod extending upwards is rotatably connected to the end face of the upper side of the auxiliary fixing block, a rotating disc is fixedly connected to the auxiliary threaded rod, a cam in threaded connection with the auxiliary threaded rod is slidably connected to the end face of the rear side of the rotating disc and can only move up and down along the rotating disc, a bevel gear located on the front side of the rotating disc is fixedly connected to the cam shaft, a fixing table located on the left side of the rotating disc is fixedly connected to the inner wall of the rear side of the screening cavity, a transmission shaft extending leftwards and rightwards is rotatably connected to the end face of the right side of the fixing table, an auxiliary bevel gear located on the right side of the fixing table and meshed and connected with the bevel gear is fixedly connected to the transmission shaft, an auxiliary bevel gear located on the left side of the fixing table is fixedly connected to the transmission, the rotary table can only slide up and down along the inner wall at the rear side of the screening cavity, the upper side end surface of the rotary table is rotatably connected with a rotating shaft extending upwards, the sliding key on the rotating shaft is connected with a bevel gear in meshed connection with the auxiliary bevel gear, an auxiliary compression spring is connected between the bevel gear and the rotating platform, the bevel gear and the auxiliary bevel gear are always meshed and connected under the action of the auxiliary compression spring, the rotating shaft is fixedly connected with a screening disc positioned on the upper side of the bevel gear, the lower end face of the screening disc is abutted against the cam, a rolling groove is arranged on the annular end face of the screening disc, twelve balls are connected between the rolling groove and the inner wall of the screening cavity in a rolling manner, the auxiliary threaded rod is rotated by rotating the rotating disc, and the cam is driven to move up and down through threaded connection, so that the amplitude generated by vibration of the screening disc is adjusted.

The invention has the beneficial effects that: the invention adopts the crank-slider mechanism as a primary vibrating screening device, can screen sandy soil smaller than the grain particle diameter by vibration, simultaneously screens light impurities such as bran shells and the like to the upper layer, simultaneously conveys the light impurities such as the bran shells and the like and dust to the water-spraying dust-removing box by airflow generated by the air pump to remove dust and realize the removal of the light impurities in the grains, simultaneously, the primary vibrating screening device can quickly adjust the length of a crank in the crank-slider mechanism by rotating a knob so as to realize the function of adjusting the amplitude, conveys the grains after primary screening to the rotating vibrating screening device to screen and remove the impurities larger than the grain particle diameter, the rotating vibrating screening device generates vibration by a cam mechanism, can drive a slider on a cam to move by rotating an auxiliary knob so as to adjust the amplitude of the rotating vibrating screening device, therefore, the invention can quickly adjust the amplitude of the vibrating screening device by rotating the knob, make things convenient for operating personnel to carry out amplitude adjustment, improve the adaptability to different grain edulcorations to improve the edulcoration effect, and have dust removal effect.

Drawings

For ease of illustration, the invention is described in detail by the following specific examples and figures.

FIG. 1 is a schematic view of the overall structure of an impurity removing apparatus for grain processing according to the present invention;

FIG. 2 is an enlarged view of the structure at "A" in FIG. 1;

FIG. 3 is an enlarged view of the structure at "B" in FIG. 1;

FIG. 4 is an enlarged view of the structure at "C" of FIG. 2;

FIG. 5 is a schematic view of the structure in the direction "D-D" of FIG. 4;

FIG. 6 is a schematic view of the structure in the direction "E-E" of FIG. 3;

FIG. 7 is a schematic view of the structure in the direction "F-F" of FIG. 6;

FIG. 8 is a schematic view of the structure in the direction "G-G" of FIG. 3.

Detailed Description

The invention will now be described in detail with reference to fig. 1 to 8, for the sake of convenience of description, the following orientations are now defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The invention relates to an impurity removing device for grain processing, which is mainly applied to grain impurity removal, and the invention is further explained by combining the attached drawings of the invention:

the impurity removing equipment for grain processing comprises a vibration box 11, wherein a vibration cavity 12 is arranged in the vibration box 11, a dust removing device 101 for removing dust by using air flow is arranged at the left side of the vibration box 11, a vibration device 102 is arranged in the vibration cavity 12, the vibration device 102 comprises an electric machine table 55 fixedly connected to the rear end face of the vibration cavity 12, a motor shaft 51 rotatably connected to the front end face of the motor table 55 and extending forwards into the vibration cavity 12, a motor 54 dynamically connected to the motor shaft 51 and fixedly connected to the front end face of the motor table 55, a turntable 38 fixedly connected to the motor shaft 51 and positioned in the vibration cavity 12, a threaded hole 74 arranged on the turntable 38 and penetrating left and right, a threaded rod 50 penetrating through the threaded hole 74 and in threaded connection with the threaded hole 74, a crank 48, a crank shaft and a crank shaft, wherein the crank shaft is fixedly connected to the front end, An auxiliary connecting rod 46 hinged on the crank 48, a cylindrical pin 45 penetrating through the auxiliary connecting rod 46 and connected with the auxiliary connecting rod 46 in a sliding manner, a sliding groove 47 arranged on the front end face of the turntable 38, and an adjusting block 44 fixedly connected on the left end face of the cylindrical pin 45 and connected on the sliding groove 47 in a sliding manner, wherein the adjusting block 44 is driven by rotating the threaded rod 50 and driving the adjusting block 44 to move along the sliding groove 47 through the crank 48, the auxiliary connecting rod 46 and the cylindrical pin 45, so that the distance between the adjusting block 44 and the circle center of the turntable 38 can be changed, the length of a crank formed by the adjusting block 44 and the turntable 38 is changed, the vibration amplitude can be changed, the vibration screening with adjustable amplitude is realized, a screening box 16 is fixedly connected on the lower end face of the vibration box 11, and a screening cavity 17 communicated with the dust removing device 101 is arranged in the screening box 16, screening device 103 is equipped with in screening chamber 17, screening device 103 utilizes rotary vibration to get rid of the impurity that is greater than cereal granule, just the adjustable amplitude of screening device 103.

Advantageously, the vibrating device 102 removes sand impurities smaller than the grain particles by vibratory screening and light impurities such as chaff to an upper layer, and is removed by the air flow generated by the dust removing device 101.

According to the embodiment, the following detailed description is made on the dust removing device 101, the dust removing device 101 includes a feeding funnel 36 disposed on the upper end surface of the vibration cavity 12 and communicated with the vibration cavity 12, the feeding funnel 36 is rotatably connected with a sealing plate 35 at the communication position of the vibration cavity 12, the sealing plate 35 enables the feeding funnel 36 not to be communicated with the vibration cavity 12, the sealing plate 35 can be abutted against the upper inner wall of the vibration cavity 12 to make the air flow in the vibration cavity 12 unable to push the sealing plate 35 to rotate upwards, a torsion spring 34 is disposed at the rotation connection position of the sealing plate 35, an air pump 14 is fixedly connected to the right end surface of the vibration cavity 12, the air pump 14 is connected with a spray pipe 13 extending leftwards into the vibration cavity 12, a dust removing box 25 is fixedly connected to the left end surface of the vibration cavity 12, and a dust removing cavity 26 is disposed in the dust removing box 25, a filter screen 28 is fixedly connected on the inner wall of the dust removing cavity 26, a water pump 27 communicated with the dust removing cavity 26 is fixedly connected on the left side end face of the dust removing cavity 26, the water pump 27 is positioned at the lower side of the filter screen 28, the inner wall at the rear side of the dust removing cavity 26 is fixedly connected with a water spray pipe 30 positioned at the upper side of the filter screen 28, a water pipe 29 is communicated and connected between the water spray pipe 30 and the water pump 27, an exhaust pipe 32 communicated with the filter screen 28 is fixedly connected on the upper side end surface of the dust removing cavity 26, the exhaust pipe 32 is provided with a filter 31 for preventing dust from being diffused to the outside through the exhaust pipe 32, the dust removing chamber 26 stores water and has a water level lower than the filter screen 28, the air flow generated by the air pump 14 conveys the dust in the vibration chamber 12 into the dust removing chamber 26, the water pump 27 sprays the water in the dust removing cavity 26 through the water pipe 29 and the water spray pipe 30 to remove dust in the dust removing cavity 26.

According to the embodiment, the vibration device 102 is described in detail below, the vibration device 102 further includes a belt wheel 53 fixedly connected to the motor shaft 51 and located outside the rear end face of the vibration cavity 12, the inner wall of the left side of the vibration cavity 12 is slidably connected with an inclined filter plate 33, the inclined filter plate 33 is of a filter screen structure, two fixed cylinders 41 which are bilaterally symmetrical are fixedly connected to the lower end face of the inclined filter plate 33, two fixed blocks 39 which are bilaterally symmetrical are fixedly connected to the inner wall of the rear side of the vibration cavity 12, the fixed blocks 39 are located at the lower side of the fixed cylinders 41, a vibration spring 40 is connected between the fixed blocks 39 and the fixed cylinders 41, two sliding cylinders 73 which are located between the fixed cylinders 41 are fixedly connected to the lower end face of the inclined filter plate 33, a sliding cylinder 43 is slidably connected with a sliding block 43, and a compression spring 42 is connected between the inner walls of the upper sides, the end face of the front side of the slider 43 is hinged with a connecting rod 37, the lower end of the connecting rod 37 is hinged with the end face of the front side of the adjusting block 44, the end face of the rear side of the threaded rod 50 is fixedly connected with a knob 49 positioned at the rear side of the rotary disc 38, the end face of the lower side of the dust removing cavity 26 is fixedly connected with an auxiliary storage box 23, an auxiliary storage cavity 24 which is communicated with the vibration cavity 12 and has an opening facing to the left is arranged in the auxiliary storage box 23, the auxiliary storage cavity 24 is used for storing small particle impurities such as filtered sandy soil, the rotary disc 38, the adjusting block 44, the connecting rod 37 and the slider 43 form a crank-slider mechanism, the distance from the center of the rotary disc 38 to the hinged position of the adjusting block 44 and the connecting rod 37 is equivalent to the length of a crank, so that the length of the crank can be changed by sliding the adjusting block 44, the vibration amplitude can be, the turntable 38 drives the adjusting block 44 to rotate, and drives the slide block 43 to move up and down through the connecting rod 37, so that the inclined filter plate 33 vibrates up and down.

According to the embodiment, the following detailed description is made on the sieving device 103, the sieving device 103 comprises a storage box 20 fixedly connected to the left end surface of the sieving chamber 17, a storage chamber 21 communicated with the sieving chamber 17 is arranged in the storage box 20, the storage chamber 21 is opened towards the left, an auxiliary box door 22 is rotatably connected to the left opening of the storage chamber 21 and the auxiliary storage chamber 24, the storage chamber 21 is used for storing impurities larger than grains, the sieving chamber 17 is opened towards the right, the box door 19 is rotatably connected to the right opening of the sieving chamber 17, a cam shaft 64 extending forwards and backwards and extending out of the end surface of the sieving chamber 17 is rotatably connected to the inner wall of the rear side of the sieving chamber 17, a secondary pulley 72 positioned outside the rear end surface of the sieving chamber 17 is fixedly connected to the cam shaft 64, and a V-belt 52 is connected between the secondary pulley 72 and the pulley 53, fixedly connected with is located on the camshaft 64 the rolling disc 63 in the screening chamber 17, fixedly connected with vice fixed block 71 on the terminal surface of rolling disc 63 rear side, the rotatory vice threaded rod 69 that upwards extends that is connected with on the terminal surface of the upside of vice fixed block 71, fixedly connected with rotary disk 70 on the vice threaded rod 69, sliding connection has on the terminal surface of rolling disc 63 rear side with cam 62 of vice threaded rod 69 threaded connection, just cam 62 can only move along rolling disc 63 reciprocates, fixedly connected with is located on the camshaft 64 the bevel gear 65 of rolling disc 63 front side, fixedly connected with is located on the inner wall of screening chamber 17 rear side fixed station 61 on the rotating disc 63 left side, the transmission shaft 67 that extends about rotationally connected with on the terminal surface of fixed station 61 right side, fixedly connected with is located on the transmission shaft 67 fixed station 61 right side and with the vice bevel gear 66 that the bevel gear 65 meshing is connected, the transmission shaft 67 is fixedly connected with an auxiliary bevel gear 60 positioned on the left side of the fixed table 61, the inner wall of the rear side of the screening cavity 17 is slidably connected with a rotary table 68 positioned on the lower side of the auxiliary bevel gear 60, the rotary table 68 can only slide up and down along the inner wall of the rear side of the screening cavity 17, the upper end surface of the rotary table 68 is rotatably connected with a rotary shaft 58 extending upwards, a sliding key on the rotary shaft 58 is connected with a bevel gear 59 engaged with the auxiliary bevel gear 60, an auxiliary compression spring 75 is connected between the bevel gear 59 and the rotary table 68, the bevel gear 59 and the auxiliary bevel gear 60 are engaged with each other all the time under the action of the auxiliary compression spring 75, the rotary shaft 58 is fixedly connected with a screening disc 18 positioned on the upper side of the bevel gear 59, the lower end surface of the screening disc 18 is abutted against the cam 62, and the circumferential end surface of the screening disc, twelve balls 56 are connected between the rolling groove 57 and the inner wall of the screening chamber 17 in a rolling manner, the secondary threaded rod 69 is rotated by rotating the rotating disc 70, the cam 62 is driven to move up and down through threaded connection, so that the amplitude generated by the vibration of the screening disc 18 is adjusted, the cam 62 and the rotating disc 63 are driven to rotate through the cam shaft 64, so that the screening disc 18 vibrates up and down, and meanwhile, the rotating shaft 58 and the screening disc 18 can be driven to rotate through meshing connection and sliding key connection, so that the rotary vibration is realized.

The following will describe in detail the use of an impurity removal device for grain processing in conjunction with fig. 1 to 8:

at the beginning, clear water with the water level lower than that of the filter screen 28 is stored in the dust removing cavity 26, the knob 49 is rotated manually, the knob 49 drives the threaded rod 50 to rotate, the threaded rod 50 rotates through the crank 48 and the auxiliary connecting rod 46, the auxiliary connecting rod 46 drives the cylindrical pin 45 and the adjusting block 44 to move along the sliding groove 47 through the sliding key, the distance between the center of the adjusting block 44 and the circle of the rotary disc 38 is changed, the amplitude of the inclined plane filter plate 33 is adjusted, a good vibration screening effect is achieved, meanwhile, the auxiliary threaded rod 69 is driven to rotate through the manual rotating auxiliary fixing block 71, the auxiliary threaded rod 69 drives the cam 62 to move up and down along the rotary disc 63 through threaded connection, the amplitude of the screening disc 18 is adjusted, a good rotary vibration screening effect is achieved, and adaptability to different grain.

When the device works, grains to be cleaned are put into the putting hopper 36, the grains push the sealing plate 35 to rotate downwards under the action of gravity and fall onto the inclined plane filter plate 33, the motor 54, the air pump 14 and the screening cavity 17 are started simultaneously, the motor 54 drives the motor shaft 51 to rotate, the motor shaft 51 drives the rotary disc 38 to rotate, the rotary disc 38 drives the adjusting block 44 to rotate through the chute 47, the adjusting block 44 drives the sliding block 43 to move up and down along the sliding cylinder 73 through the connecting rod 37, the inclined plane filter plate 33 is driven to move up and down through the compression spring 42, the inclined plane filter plate 33 vibrates up and down under the action of the elastic force of the vibration spring 40 to carry out vibration screening on the grains, sandy soil with the diameter smaller than the grain particles slides into the auxiliary storage cavity 24 through the inclined plane filter plate 33 to be stored, light impurities such as bran shells and the like are separated into the upper layer by, the dust and light impurities such as bran shells in the vibration cavity 12 are conveyed into the dust removing cavity 26 along with the air flow, simultaneously, the water in the dust removing cavity 26 is conveyed into the water spraying pipe 30 through the water pipe 29 by the water pump 27 and sprayed into the dust removing cavity 26, dust removing treatment is carried out on the dust in the dust removing cavity 26, so that the dust and the light impurities such as the bran shells fall onto the filter screen 28, the sprayed water returns to the dust removing cavity 26 at the lower side of the filter screen 28 through the filter screen 28 for recycling, simultaneously, the inclined filter board 33 vibrates and sieves so that grain particles slide onto the sieving disc 18 along the inclined surface of the inclined filter board 33, simultaneously, the motor shaft 51 drives the belt wheel 53 to rotate, the belt wheel 53 drives the secondary belt wheel 72 to rotate through the V belt 52, the secondary belt wheel 72 drives the cam shaft 64 to rotate, the cam shaft 64 drives the rotating disc 63 and the cam 62 to rotate, the cam 62 drives the sieving disc 18 to move up and down, so as, camshaft 64 is connected through bevel gear 65 and the meshing of vice bevel gear 66 and drives transmission shaft 67 and vice bevel gear 60 and rotate, vice bevel gear 60 is connected through the meshing and drives bevel gear 59 and rotate, bevel gear 59 is connected the rotating shaft 58 and is rotated with screening dish 18 through the feather key, thereby realize rotary vibration, rotary vibration makes the impurity that is greater than the grain granule remove to storing the chamber 21 under centrifugal force and vibration effect, the grain granule falls to storing in screening chamber 17 of screening dish 18 downside through screening dish 18, thereby accomplish the edulcoration and the dust removal to grain.

In the above manner, a person skilled in the art can make various changes depending on the operation mode within the scope of the present invention.

Claims

1. An impurity removing device for grain processing comprises a vibration box;

the vibration box is internally provided with a vibration cavity, the left side of the vibration box is provided with a dust removal device for removing dust by utilizing air flow, the vibration cavity is internally provided with a vibration device, the vibration device comprises an electric machine table fixedly connected to the rear end face of the vibration cavity, a motor shaft rotatably connected to the front end face of the motor table and extending forwards into the vibration cavity, a motor dynamically connected to the motor shaft and fixedly connected to the front end face of the motor table, a turntable fixedly connected to the motor shaft and positioned in the vibration cavity, a threaded hole arranged on the turntable and communicated in the left and right direction, a threaded rod penetrating through the threaded hole and in threaded connection with the threaded hole, a crank fixedly connected to the front end face of the threaded rod, an auxiliary connecting rod hinged to the crank, a cylindrical pin penetrating through the auxiliary connecting rod and connected with the auxiliary connecting rod through a sliding key, The screening device comprises a chute and an adjusting block, wherein the chute is arranged on the end face of the front side of the rotary table, the adjusting block is fixedly connected to the end face of the left side of the cylindrical pin and is connected to the chute in a sliding mode, the threaded rod is rotated and drives the adjusting block to move along the chute through the crank, the auxiliary connecting rod and the cylindrical pin, the distance between the adjusting block and the circle center of the rotary table can be changed, the length of the crank formed by the adjusting block and the rotary table is changed, the vibration amplitude can be changed, vibration screening with adjustable amplitude is achieved, a screening box is fixedly connected to the end face of the lower side of the vibration box, a screening cavity communicated with the dust removal device is arranged in the screening box, a screening device is arranged in the screening cavity, impurities larger than grain particles are removed through rotary vibration of.

2. The impurity removal apparatus for grain processing as set forth in claim 1, wherein: the vibrating device utilizes vibration screening to remove sand and soil impurities smaller than grain particles, screens light impurities such as bran shells and the like to an upper layer, and removes the light impurities by airflow generated by the dust removal device.

3. The impurity removal apparatus for grain processing as set forth in claim 1, wherein: the dust removal device comprises a throwing funnel which is arranged on the end face of the upper side of the vibration cavity and is communicated with the vibration cavity, the throwing funnel is connected with a sealing plate in a rotating way at the communicating part of the vibration cavity, the sealing plate can enable the throwing funnel not to be communicated with the vibration cavity, the sealing plate can be abutted against the inner wall of the upper side of the vibration cavity, so that the air flow in the vibration cavity can not push the sealing plate to rotate upwards, a torsion spring is arranged at the rotating connecting part of the sealing plate, an air pump is fixedly connected to the end face of the right side of the vibration cavity, a spray pipe which extends to the left in the vibration cavity is connected to the air pump in a communicating way, a dust removal box is fixedly connected to the end face of the left side of the vibration cavity, a dust removal cavity is arranged in the dust removal box, a filter screen is fixedly connected, the water pump is located on the lower side of the filter screen, the inner wall of the rear side of the dust removal cavity is fixedly connected with a water spray pipe located on the upper side of the filter screen, the water spray pipe is communicated with the water pump and is connected with a water pipe, an exhaust pipe communicated with the filter screen is fixedly connected to the end face of the upper side of the dust removal cavity, and a filter for preventing dust from diffusing to the outside through the exhaust pipe is arranged on the exhaust pipe.

4. The impurity removal apparatus for grain processing as set forth in claim 1, wherein: the vibrating device further comprises a belt wheel fixedly connected to the motor shaft and positioned outside the rear end face of the vibrating cavity, an inclined plane filter plate is connected to the inner wall of the left side of the vibrating cavity in a sliding mode, the inclined plane filter plate is of a filter screen structure, two fixed cylinders which are bilaterally symmetrical are fixedly connected to the end face of the lower side of the inclined plane filter plate, two fixed blocks which are bilaterally symmetrical are fixedly connected to the inner wall of the rear side of the vibrating cavity, the fixed blocks are positioned on the lower side of the fixed cylinders, a vibrating spring is connected between the fixed blocks and the fixed cylinders, a sliding cylinder positioned between the two fixed cylinders is fixedly connected to the end face of the lower side of the inclined plane filter plate, a sliding block is connected to the sliding cylinder in a sliding mode, a compression spring is connected between the sliding block and the inner wall of the upper side of the, fixedly connected with is located on the threaded rod rear end face the knob of carousel rear side, the vice bin of fixedly connected with is gone up to the dust removal chamber lower extreme end face, be equipped with in the vice bin with the vibration chamber communicates with each other and the opening is towards the vice chamber of storing of left side, vice chamber of storing is used for storing granule impurity such as sand after filtering, the carousel the adjusting block the connecting rod with the slider constitutes slider-crank mechanism, the carousel centre of a circle arrives the adjusting block with the distance between the articulated department of connecting rod is equivalent to crank length, consequently through sliding the adjusting block can change crank length to change the vibration range.

5. The impurity removal apparatus for grain processing as set forth in claim 4, wherein: the screening device comprises a storage box fixedly connected to the left end face of the screening cavity, a storage cavity communicated with the screening cavity is arranged in the storage box, the opening of the storage cavity faces left, the storage cavity and the left opening of the auxiliary storage cavity are rotatably connected with an auxiliary box door, the storage cavity is used for storing impurities larger than grain particles, the opening of the screening cavity faces right, the right opening of the screening cavity is rotatably connected with the box door, the inner wall of the rear side of the screening cavity is rotatably connected with a cam shaft extending forwards and backwards and extending backwards to the outside of the end face of the screening cavity, an auxiliary belt wheel positioned outside the rear end face of the screening cavity is fixedly connected to the cam shaft, a V belt is connected between the auxiliary belt wheel and the belt wheel, a rotating disc positioned in the screening cavity is fixedly connected to the cam shaft, and an auxiliary fixing block is fixedly connected to the rear end face of the rotating, the auxiliary fixing block is characterized in that an auxiliary threaded rod extending upwards is rotatably connected to the end face of the upper side of the auxiliary fixing block, a rotating disc is fixedly connected to the auxiliary threaded rod, a cam in threaded connection with the auxiliary threaded rod is slidably connected to the end face of the rear side of the rotating disc and can only move up and down along the rotating disc, a bevel gear located on the front side of the rotating disc is fixedly connected to the cam shaft, a fixing table located on the left side of the rotating disc is fixedly connected to the inner wall of the rear side of the screening cavity, a transmission shaft extending leftwards and rightwards is rotatably connected to the end face of the right side of the fixing table, an auxiliary bevel gear located on the right side of the fixing table and meshed and connected with the bevel gear is fixedly connected to the transmission shaft, an auxiliary bevel gear located on the left side of the fixing table is fixedly connected to the transmission, the rotary table can only slide up and down along the inner wall at the rear side of the screening cavity, the upper side end surface of the rotary table is rotatably connected with a rotating shaft extending upwards, the sliding key on the rotating shaft is connected with a bevel gear in meshed connection with the auxiliary bevel gear, an auxiliary compression spring is connected between the bevel gear and the rotating platform, the bevel gear and the auxiliary bevel gear are always meshed and connected under the action of the auxiliary compression spring, the rotating shaft is fixedly connected with a screening disc positioned on the upper side of the bevel gear, the lower end face of the screening disc is abutted against the cam, a rolling groove is arranged on the annular end face of the screening disc, twelve balls are connected between the rolling groove and the inner wall of the screening cavity in a rolling manner, the auxiliary threaded rod is rotated by rotating the rotating disc, and the cam is driven to move up and down through threaded connection, so that the amplitude generated by vibration of the screening disc is adjusted.