CN114392803B - An intelligent device for grinding grain - Google Patents

Abstract

The invention discloses an intelligent device for milling grains, which relates to the technical field of grain sorting and milling and comprises a milling box, a screening box arranged on one side of the top of the milling box and a feeding hopper arranged on the top of the screening box, wherein the middle part of the top surface of the milling box is provided with a funnel-shaped feeding hole, and a vibrating screen mechanism is arranged in the screening box; a lower grinding disc is arranged at the bottom of the grinding cavity, an upper grinding disc is rotatably arranged at the top of the lower grinding disc, and a grinding mechanism is arranged in the middle of the inner top surface of the grinding box; according to the grain crushing device, the grinding mechanism is matched with the lower grinding disc and the upper grinding disc, grains to be treated can be conveniently subjected to double crushing treatment, the uniformity and the efficiency of grain crushing are effectively improved, the grinding mechanism is matched with the transmission mechanism and the vibrating screen mechanism, the grains can be conveniently classified and ground according to different grain sizes, and the convenience in processing the grains according to the grain sizes is improved; meanwhile, the using quantity of electric devices and the consumption of electric energy are greatly reduced, and the energy-saving effect of the device is conveniently improved.

Description

An intelligent device for grinding grain

technical field

The invention relates to the technical field of grain sorting and grinding, in particular to an intelligent device for grinding grains.

Background technique

After the grain is harvested, it is transported to the food processing factory for processing and production. In the current food processing factory, after receiving the grain, the grain needs to be sorted and pretreated by a sieving machine, and then the sorted grain is poured into the milling device Grinding operations are carried out in the

The existing milling device cannot re-screen the grain when it is in use, and it needs to carry out multiple transfers when the grain is processed, which greatly reduces the work efficiency of the grain processing; and requires more Many processing machines process the grains, resulting in a large consumption of electric energy, and it is not possible to choose a more integrated processing device for convenient processing of the grains; It is easy to cause jamming and blockage, so that the grinding device will stop operating and the production efficiency will be delayed. Secondly, the current mill protection structure is simple; therefore, the above problems need to be improved.

Contents of the invention

The purpose of the present invention is to solve the shortcoming existing in the prior art, and propose a kind of milling grain intelligent device.

In order to achieve the above object, the present invention adopts the following technical scheme: an intelligent device for grinding grains, comprising a milling box, a screening box arranged on one side of the top of the milling box and a hopper arranged on the top of the screening box, the The middle part of the top surface of the grinding box is provided with a funnel-shaped feed inlet, and a feed hopper is arranged inside the feed inlet; a first ring frame is horizontally sleeved on the lower part of the outer wall of the screening box, and the screening The upper part of the outer wall of the box is horizontally sleeved with a second ring frame, and the inside of the screening box is provided with a vibrating mechanism for grain screening;

The lower part of the milling box is the driving chamber, and the upper part is the milling chamber; the middle part of the driving chamber is provided with a first motor, the bottom of the milling chamber is horizontally provided with a lower grinding disc, and the top of the lower grinding disc is provided with a rotating device. There is an upper grinding disc, and the inner bottom surface of the driving chamber rotates and is provided with a rotating shaft that can move through the lower grinding disc, and the upper shaft body of the rotating shaft is provided with a supporting assembly for supporting the upper grinding disc; the inner top surface of the grinding box The middle part is provided with a rolling mechanism for primary crushing of grains; a transmission mechanism for accelerating the vibration frequency of the vibrating sieve mechanism is provided between the rolling mechanism and the vibrating sieve mechanism;

The inside of the feed port is provided with a material pulling assembly for anti-accumulation of grains, and the bottom of the inner wall of the grinding chamber is provided with a discharge port, and the inner wall of the screening box is matched with the first ring frame and the second ring. The frame is provided with a number of discharge openings, the first ring frame and the second ring frame are located on the inner outer wall above the feed hopper, and there are discharge openings, and a baffle is inserted vertically in the discharge opening; The inner side of the bottom of the second ring frame is inclined to be provided with deflectors for grains to fall.

Preferably, the lower grinding disc is a circular boss-shaped structure, and the outer wall of the upper grinding disc is vertically provided with a number of scraping plates that cooperate with the side walls of the lower grinding disc, and the inner surface of the scraping plates cooperates with the lower grinding disc It is in the shape of an inclined plane, and a cleaning brush is provided on the inner side of the scraping plate.

Preferably, the bottom surfaces of the notches of the first ring frame and the second ring frame are both inclined toward the direction of the feed hopper in a bevel shape.

Preferably, the rolling mechanism includes a transmission box arranged on one side of the middle part of the top surface in the milling box, a driving box arranged on the other side of the middle part of the top surface in the milling box, and a second drive box arranged at the front end inside the driving box. The motor rotates the two rolling rollers located at the front and rear ends between the transmission box and the drive box; one end of the two rolling rollers moves through the transmission box, and one end of the rolling roller in front of the transmission box is fixedly socketed There is a driving gear, and one end of the rolling roller at the rear of the transmission box is fixedly sleeved with a driven gear, and the driving gear and the driven gear are meshed for transmission; the other end of the rolling roller on the front side of the top inside the grinding box is movable It penetrates into the drive box and is coaxially fixed with the drive shaft of the second motor.

Preferably, the vibrating screen mechanism includes a fixed plate horizontally arranged in the lower part of the screening box, a screen grid plate movable horizontally arranged in the upper part of the screening box, a fixed box penetrating through the middle of the top surface of the fixed plate, and a movable device. The movable plate inside the fixed box, the jacking rod vertically fixed on the top of the movable plate, the rack bar vertically fixed on the bottom of the movable plate and the rotating rod longitudinally arranged on the lower side of the fixed plate, the lifting The top of the rod moves through the outside of the fixed box and is connected to the bottom of the screen tray. The lifting rod is located on the rod body in the fixed box and is provided with a reset spring; A semicircular impact block is fixed outside the box. The inner bottom surface of the screening box is horizontally provided with a collision plate that matches the impact block. gear.

Preferably, the transmission mechanism includes a vertical plate arranged longitudinally at the lower part of one side of the inner wall of the rear end of the screening box, a driving sprocket arranged at one end of the rolling roller in front of the transmission box, a drive shaft and a fixed shaft arranged at one side of the vertical plate to rotate. The driving bevel gear connected to one end of the transmission shaft, the driven bevel gear meshing with the driving bevel gear is fixedly sleeved on the rotating rod behind the half gear, and the other end of the transmission shaft moves through the vertical plate and is fixedly sleeved with a The driven sprocket is provided with an installation opening between the screening box and the transmission box, and a chain is arranged in the installation opening, and the driven sprocket and the driving sprocket are connected through a chain transmission.

Preferably, the shifting assembly includes a shifting rod arranged on the inner wall of one side of the feed inlet and several arc-shaped shifting blades equidistantly arranged in the middle and both sides of the shifting rod, the shifting rod One end movably penetrates into the installation opening and is fixedly sleeved with a driven sprocket, which is connected to the chain for transmission.

Preferably, the middle part of the top surface of the fixed disk and the screen mesh disk both protrude upwards in an arc-shaped structure.

Preferably, the supporting assembly includes a supporting plate fixedly sleeved on the upper part of the rotating shaft, a movable plate movably sleeved above the supporting plate, and a support is movably sleeved on the rotating shaft between the movable plate and the supporting plate spring; the middle part of the bottom surface of the upper grinding disc is provided with a supporting groove, the movable plate abuts against the inner top surface of the supporting groove, and the middle part of the top surface of the upper grinding disc is provided with an arc-shaped diversion groove, and the rotating shaft The top of the rotating shaft moves through into the diversion groove. The outer wall of the upper part of the rotating shaft is provided with external threads. Shaped block; the bottom of the block is in contact with the inner bottom surface of the diversion tank; a number of diversion openings are provided around the inner bottom surface of the diversion tank.

Compared with the prior art, the beneficial effect of the present invention is: the present invention facilitates double crushing of the grains to be processed through the cooperation of the rolling mechanism and the lower millstone and the upper millstone, effectively improving the uniformity and High efficiency, through the cooperation of the rolling mechanism, the transmission mechanism and the vibrating sieve mechanism, it is convenient to screen and classify the grains that are about to be milled, and it is convenient to classify and grind the grains according to the different particle sizes, which improves the quality of the grains according to the grain size. Convenience during diameter processing; at the same time, the number of electrical components used and the consumption of electric energy are greatly reduced, which is convenient to improve the energy-saving effect of the device; the flow guide component can effectively prevent the grain from being blocked during the process of falling and grinding, The anti-blocking effect of the device during operation is improved.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention and constitute a part of the application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention. In the attached picture:

Fig. 1 is the front view structure schematic diagram of the present invention;

Fig. 2 is a sectional view of the local structure of the milling box of the present invention;

Fig. 3 is a structural cross-sectional view of a milling box and a screening box of the present invention;

Fig. 4 is a structural sectional view of the transmission box and the drive box of the present invention;

Fig. 5 is the cross-sectional view of the top view structure of the transmission box and the drive box of the present invention;

Fig. 6 is a schematic diagram of the meshing structure of the driving bevel gear and the driven bevel gear of the present invention;

Fig. 7 is a schematic view of the top view of the lower grinding disc of the present invention;

Serial numbers in the figure: 1. Grinding box; 2. Screening box; 3. Feeding hopper; 4. First ring frame; 5. Second ring frame; 6. Feeding hopper; 7. Lower grinding disc; 8. Upper grinding disc ;9, scraping plate; 10, the first motor; 11, rotating shaft; 12, rolling roller; 13, fixed plate; 14, screen mesh plate; 15, fixed box; Motor; 18, jacking rod; 19, return spring; 20, rack bar; 21, impact block; 22, rotating rod; 23, half gear; 24, transmission shaft; 25, driven bevel gear; 26, driven Sprocket wheel; 27, driving gear; 28, driving sprocket wheel; 29, passive sprocket wheel; 30, chain.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

Embodiment: Referring to Figures 1-7, a smart device for milling grains includes a milling box 1, a screening box 2 located on one side of the top of the grinding box 1 and a hopper 3 located at the top of the screening box 2, The middle part of the top surface of the milling box 1 is provided with a funnel-shaped feeding port, and a feeding hopper 6 is arranged inside the feeding port; There is a second ring frame 5 horizontally sleeved on the upper part of the screen, and a vibrating screen mechanism for grain screening is provided inside the screening box 2; the lower part of the grinding box 1 is a driving cavity, and the upper part is a grinding cavity; the middle part of the driving cavity is provided with The first motor 10, the bottom of the grinding chamber is horizontally provided with the lower grinding disc 7, the top of the lower grinding disc 7 is rotated to be provided with the upper grinding disc 8, and the inner bottom surface of the drive chamber is rotated to be provided with a rotating shaft 11 which can move through the lower grinding disc 7, and the top of the rotating shaft 11 The shaft body is provided with a supporting assembly for supporting the upper grinding disc 8; the middle part of the inner top surface of the milling box 1 is provided with a rolling mechanism for preliminary crushing of grain; The transmission mechanism with accelerated vibration frequency of the sieve mechanism; through the cooperation of the rolling mechanism with the lower grinding disc 7 and the upper grinding disc 8, it is convenient to carry out double crushing of the grains to be processed, which effectively improves the uniformity and efficiency of grain crushing. The combination of the pressing mechanism, the transmission mechanism and the vibrating sieve mechanism facilitates the screening and classification of the grains that are about to be milled, facilitates the classification and grinding of the grains according to the different particle sizes, and improves the convenience of grain processing according to the particle size At the same time, the number of electrical components used and the consumption of electric energy are greatly reduced, which is convenient to improve the energy-saving effect of the device; the flow guide component can effectively prevent the grain from being blocked during the process of falling and grinding, and improve the efficiency of the device. Anti-blocking effect during operation.

In the present invention, the inside of the feeding port is provided with a material-screw assembly for anti-accumulation of grains, and a discharge port is provided around the bottom of the inner wall of the grinding chamber, and the inner wall of the screening box 2 is matched with the first ring frame 4 and the second The ring frame 5 is provided with a number of discharge openings, the first ring frame 4 and the second ring frame 5 are located on the inner outer wall above the feed hopper 6 and are provided with a blanking opening, and a baffle plate is vertically movable in the blanking opening; The inboard of the bottom of the second ring frame 5 is inclined to be provided with deflectors for the falling of the grains, so as to prevent the falling grains from the second ring frame 5 from entering the first ring frame 4 .

In the present invention, the lower grinding disc 7 is a circular boss-shaped structure, and the outer wall of the upper grinding disc 8 is vertically provided with a number of scraping plates 9 that cooperate with the side walls of the lower grinding disc 7. The inner surfaces of the scraping plates 9 cooperate with the lower The grinding disc 7 is set as an inclined plane, and the inner side of the scraping plate 9 is provided with a cleaning brush; the bottom surfaces of the notches of the first ring frame 4 and the second ring frame 5 are all inclined to the direction of the feeding hopper 6 and are arranged as an inclined plane. Through the setting of the scraping plate 9, it is convenient to push out the grain on the 7 peripheral sides of the lower grinding disc from the discharge opening.

In the present invention, the rolling mechanism includes a transmission box arranged on one side of the middle part of the inner top surface of the milling box 1, a driving box arranged on the other side of the middle part of the inner top surface of the milling box 1, and a front end of the inside of the driving box. The second motor 17 and the two rolling rollers 12 arranged at the front and rear ends between the transmission box and the driving box are rotated; one end of the two rolling rollers 12 moves through the transmission box, and one end of the rolling roller 12 in front of the transmission box is fixed. Drive gear 27 is sleeved, and one end of rolling roller 12 at the rear of the transmission box is fixedly sleeved with a driven gear, and driving gear 27 is engaged with the driven gear for transmission; the other end of rolling roller 12 on the top front side of grinding box 1 The activity penetrates into the drive box and is coaxially connected with the drive shaft of the second motor 17, which is convenient for preliminary grinding and crushing of the grain, and is convenient for reducing the time-consuming for final grinding of the grain.

In the present invention, the vibrating screen mechanism includes a fixed plate 13 horizontally arranged in the lower part of the screening box 2, a screen mesh plate 14 horizontally movable in the upper part of the screening box 2, and a screen penetrating through the middle of the top surface of the fixed plate 13. Fixed box 15, activity is located at the movable plate inside fixed box 15, the jacking bar 18 that is vertically affixed to the top of movable plate, the rack bar 20 that is vertically affixed in the bottom of movable plate and is vertically arranged at the bottom of fixed plate 13 One side of the rotating rod 22, the top of the jacking rod 18 moves through the outside of the fixed box 15 and is fixedly connected to the bottom of the screening net plate 14, and the jacking rod 18 is located on the rod body in the fixed box 15 and is provided with a reset spring 19. The bottom of the rack bar 20 moves through the outside of the fixed box 15 and is fixedly connected with a semicircular impact block 21. The inner bottom surface of the screening box 2 is horizontally provided with a collision plate that cooperates with the impact block 21, and the rod body of the rotating rod 22 The middle part is fixedly sleeved with a half gear 23 which meshes with the rack bar 20; the middle part of the top surface of the fixed plate 13 and the screen mesh plate 14 is raised upwards as an arc-shaped structure, which is convenient for vibrating the grain.

In the present invention, the transmission mechanism includes a vertical plate vertically arranged on the lower part of one side of the inner wall of the rear end of the screening box 2, a drive sprocket 28 arranged at one end of the rolling roller 12 in front of the transmission box, and a drive wheel 28 arranged on one side of the vertical plate to rotate. The shaft 24 and the driving bevel gear fixedly connected to one end of the transmission shaft 24, the rotating rod 22 behind the half gear 23 is fixedly sleeved with the driven bevel gear 25 meshing with the driving bevel gear, and the other end of the transmission shaft 24 moves through the vertical plate And the driven sprocket 26 is fixedly sleeved, and an installation opening is opened between the screening box 2 and the transmission box, and a chain 30 is arranged in the installation opening, and the driven sprocket 26 and the driving sprocket 28 are connected through the chain 30; The diameter of driving sprocket 28 is greater than the diameter of driven sprocket 29, and the diameter of driven sprocket 29 is greater than the diameter of driven sprocket 26, and then drives driven sprocket 29 and driven sprocket 26 to rotate by chain 30 in driving sprocket 28 When, play the effect of speed-up, and the rotating speed of driven sprocket 26 is the fastest, and then is convenient to drive half gear 23 to carry out fast forward rotation; And then is convenient to improve the vibrating effect of vibrating sieve mechanism for grain.

In the present invention, the shifting assembly includes a shifting rod arranged on the inner wall of one side of the feed inlet and several arc-shaped shifting blades 16 equidistantly arranged in the middle and both sides of the shifting rod. One end movably penetrates into the installation opening and is fixedly sleeved with a passive sprocket 29. The passive sprocket 29 is connected to the chain 30 in transmission to prevent the grain from being blocked when passing through the feed opening.

In the present invention, the supporting assembly includes a supporting plate fixedly sleeved on the upper part of the rotating shaft 11, a movable plate movably sleeved above the supporting plate, and a support is movably sleeved on the rotating shaft 11 between the movable plate and the supporting plate. spring; the middle part of the bottom surface of the upper grinding disc 8 is provided with a supporting groove, the movable plate abuts against the inner top surface of the supporting groove, and the middle part of the top surface of the upper grinding disc 8 is provided with an arc-shaped diversion groove, and the top of the rotating shaft 11 moves through to In the diversion groove, external threads are provided on the outer wall of the upper part of the rotating shaft 11, the top of the rotating shaft 11 is threadedly connected with a compression nut, and the rotating shaft 11 at the lower part of the compression nut is movably sleeved with a circular frustum-shaped spacer; The bottom abuts against the inner bottom surface of the diversion groove; the inner bottom surface of the diversion groove is surrounded by a number of diversion openings, and the distance between the upper grinding disc 8 and the lower grinding disc 7 can be adjusted by rotating the compression nut, and then the distance between the upper grinding disc 8 and the lower grinding disc 7 can be adjusted according to the The fineness of grinding for different grains can be adjusted.

Working principle: In this embodiment, the present invention also proposes a method for using an intelligent device for grinding grains, which includes the following steps:

Step 1, at first the first motor 10 and the second motor 17 are respectively electrically connected to the external control equipment through wires, and then the first motor 10 is controlled to drive the upper grinding disc 8 on the top of the rotating shaft 11 to rotate slowly and at a uniform speed; and control The second motor 17 drives one of the rolling rollers 12 to rotate backwards, and through the cooperation of the driving gear 27 and the driven gear, it drives the other rolling roller 12 at the rear end to rotate forward and reversely, and then the grain is discharged from the hopper. 3. Pour into the inside of the screening box 2, and the grain will fall on the top of the screening net pan 14;

Step 2, when the rolling roller 12 rotates, it will drive the driving sprocket 28 to rotate backwards. By setting the chain 30, it is convenient to drive the driven sprocket 26 and the driven sprocket 29 to rotate synchronously when the driving sprocket 28 rotates. The rotation of the driven sprocket 26 drives the transmission shaft 24 to rotate, and then drives the driven bevel gear 25 meshed with the driving bevel gear to rotate in the forward direction. The half gear 23 meshed with the rod 20 rotates positively, and the positive rotation of the half gear 23 will drive the rack bar 20 to rise, and the lifting rod 18 on the top of the movable plate will be pushed up by the rising of the rack bar 20, and then through the rising The lifting rod 18 lifts the screening net plate 14, and then when the half gear 23 rotates to the smooth surface, the half gear 23 will not mesh with the rack bar 20, and then the gravity of the screening net disc 14 and the return spring 19 Under the action of the thrust, it is convenient to quickly reset and lower the rack bar 20, and it is convenient to increase the impact force of the impact block 21 at the bottom end of the rack bar 20 and the impact plate, thereby improving the vibrating screen performance of the screening grid plate 14 during screening. effect, it is convenient to classify and screen grains;

Step 3, then when the sieve mesh pan 14 vibrates, the grains with small particle sizes will fall on the top of the fixed plate 13, and then the grains with small particle sizes will enter the first ring frame 4 through the discharge port on the side of the fixed plate 13 inside, and roll down along the inclined surface inside the first ring frame 4 to the discharge opening, and at the same time, the large-grained grains on the top of the screen pan 14 enter the second ring frame 5 through the discharge opening on the side of the screen pan 14 inside, and then roll down to the discharge opening of the second ring frame 5; then the staff chooses which grain size to grind first, and then the baffle on the first ring frame 4 or the second ring frame 5 The plate is drawn out, and then the grain is dropped into the feed hopper 6;

Step 4, when the grains falling into the feed hopper 6 pass through the feed port, the driving rod is driven to rotate under the rotation of the driven sprocket 29, and the driving blade 16 is then driven to rotate by the rotation of the driving rod. Rotate, and then play a role in stirring the grain passing through the feed port, so as to avoid the grain from blocking the feed port;

Step 5, then the grain passing through the feed port falls between the two rolling rollers 12, through the relative rotation of the two rolling rollers 12, it is convenient to carry out preliminary rolling and crushing operations on the grain, and then after preliminary rolling The broken grain falls in the diversion groove of the upper millstone 8, and then the grain entering the diversion groove falls between the lower millstone 7 and the upper millstone 8 through the diversion opening, and then by rotating the upper millstone 8, it is placed on the lower millstone 7. The final grinding and crushing process is carried out on the grain between the upper milling disc 8, and the crushed grain will slide out of the milling box 1 through the discharge port;

Step 6: After the crushing of the grains of this particle size is completed, repeat the above-mentioned milling operation to grind the grains of the next particle size, which effectively improves the efficiency of the grain grinding process.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection scope of the present invention.

Claims (5)

1. An intelligent device for grinding grains, comprising a milling box (1), a screening box (2) arranged on the top side of the milling box (1) and a hopper ( 3), characterized in that: the middle part of the top surface of the grinding box (1) is provided with a funnel-shaped feeding port, and a feeding hopper (6) is arranged inside the feeding port; the screening box (2 ) The lower part of the outer wall is horizontally socketed with a first ring frame (4), the upper part of the outer wall of the screening box (2) is horizontally socketed with a second ring frame (5), and the inside of the screening box (2) is equipped with a Vibrating sieve mechanism for grain sieving; The lower part of the grinding box (1) is a driving chamber, and the upper part is a grinding chamber; the middle part of the driving chamber is provided with a first motor (10), and the bottom of the grinding chamber is horizontally provided with a lower grinding disc (7) , the top of the lower grinding disc (7) is rotated with an upper grinding disc (8), and the inner bottom surface of the drive chamber is rotated with a rotating shaft (11) that runs through the lower grinding disc (7). The upper part of the rotating shaft (11) The shaft body is provided with a supporting assembly for supporting the upper grinding disc (8); the middle part of the inner top surface of the grinding box (1) is provided with a rolling mechanism for preliminary grinding of grain; the rolling mechanism is connected with the vibrating There is a transmission mechanism for accelerating the vibration frequency of the vibrating screen mechanism between the sieve mechanisms; The inside of the feeding port is provided with a material pulling assembly for anti-accumulation of grains, and the bottom of the inner wall of the grinding chamber is provided with a discharge port, and the inner wall of the screening box (2) is matched with the first ring frame ( 4) and the second ring frame (5) are provided with a number of discharge openings, and the first ring frame (4) and the second ring frame (5) are located on the inner and outer walls above the feed hopper (6). A baffle plate is inserted vertically into the material opening; the inside of the bottom of the second ring frame (5) is obliquely provided with a deflector for the falling of grains; The rolling mechanism includes a transmission box arranged on one side of the middle part of the inner top surface of the milling box (1), a driving box arranged on the other side of the middle part of the inner top surface of the milling box (1), and a front end arranged inside the driving box. The second motor (17) and the two rolling rollers (12) that rotate the front and rear ends between the transmission box and the drive box; one end of the two rolling rollers (12) moves through the transmission box, and the One end of the rolling roller (12) in front of the transmission box is fixedly sleeved with a driving gear (27), and one end of the rolling roller (12) at the rear of the transmission box is fixedly sleeved with a driven gear, and the driving gear (27) ) is meshed with the driven gear for transmission; the other end of the rolling roller (12) on the top front side of the grinding box (1) moves and penetrates into the drive box and is coaxially fixed with the drive shaft of the second motor (17); The vibrating screen mechanism includes a fixed plate (13) horizontally arranged in the lower part of the screening box (2), a screen mesh plate (14) horizontally arranged in the upper part of the screening box (2), and a fixed plate installed through the (13) The fixed box (15) in the middle of the top surface, the movable plate located inside the fixed box (15), the jacking rod (18) vertically fixed on the top of the movable plate, and the vertically fixed on the bottom of the movable plate The rack rod (20) and the rotating rod (22) arranged longitudinally on the lower side of the fixed plate (13), the top of the lifting rod (18) moves through the outside of the fixed box (15) and the screening mesh plate The bottom of (14) is fixedly connected, and the lifting rod (18) is located on the rod body in the fixed box (15) and is provided with a reset spring (19); A semicircular impact block (21) is fixed outside the fixed box (15). The inner bottom surface of the screening box (2) is horizontally provided with a collision plate matched with the impact block (21). The rotating rod (22 ) is fixedly sleeved with a half gear (23) meshing with the rack bar (20) in the middle of the rod body; The transmission mechanism includes a vertical plate vertically arranged on the lower part of the inner wall of the rear end of the screening box (2), a driving sprocket (28) arranged at one end of the rolling roller (12) in front of the transmission box, and a vertical plate arranged on one end of the vertical plate for rotation. The transmission shaft (24) on the side and the driving bevel gear affixed to one end of the transmission shaft (24), the rotating rod (22) behind the half gear (23) is fixedly sleeved with the driven cone meshing with the driving bevel gear gear (25), the other end of the transmission shaft (24) moves through the vertical plate and is fixedly sleeved with a driven sprocket (26), and an installation opening is opened between the screening box (2) and the transmission box , the installation port is provided with a chain (30), and the driven sprocket (26) is connected to the driving sprocket (28) through the chain (30); The shifting assembly includes a shifting rod arranged on the inner wall of one side of the feed inlet and several arc-shaped shifting blades (16) equidistantly arranged in the middle and both sides of the shifting rod. The shifting rod One end movably penetrates into the installation opening and is fixedly sleeved with a driven sprocket (29), and the driven sprocket (29) is driven and connected with the chain (30). 2. An intelligent device for grinding grain according to claim 1, characterized in that: the lower grinding disc (7) is a circular boss-shaped structure, and the outer wall of the upper grinding disc (8) is vertically arranged There are a number of scraping plates (9) matching the side walls of the lower grinding disc (7), the inner side of the scraping plates (9) is set in a bevel shape in conjunction with the lower grinding disc (7), and the scraping plates (9) There is a cleaning brush on the inner side. 3. An intelligent device for grinding grain according to claim 2, characterized in that: the bottom surfaces of the slots of the first ring frame (4) and the second ring frame (5) are facing the feed hopper (6) Direction Tilt is set to bevel-like. 4. The intelligent device for grinding grain according to claim 3, characterized in that: the middle part of the top surface of the fixed plate (13) and the screening mesh plate (14) both protrude upward to form an arc-shaped structure. 5. An intelligent device for grinding grain according to claim 4, characterized in that: the supporting assembly includes a supporting plate fixedly sleeved on the upper part of the rotating shaft (11), and a movable plate movably sleeved above the supporting plate , the rotating shaft (11) between the movable plate and the supporting plate is movably socketed with a supporting spring; the middle part of the bottom surface of the upper grinding disc (8) is provided with a supporting groove, and the movable plate abuts against the supporting groove The inner top surface of the upper grinding disc (8) is provided with an arc-shaped diversion groove in the middle of the top surface, and the top of the rotating shaft (11) moves through the diversion groove, and the shaft on the upper part of the rotating shaft (11) There are external threads on the outer wall, and the top of the rotating shaft (11) is threadedly connected with a compression nut, and the rotating shaft (11) at the lower part of the compression nut is movably socketed with a frustum-shaped spacer; the spacer The bottom is in contact with the inner bottom surface of the diversion groove; several diversion openings are opened around the inner bottom surface of the diversion groove.

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