Grain conveyor with impurity winnowing function

Abstract

The utility model relates to the technical field of grain conveyors, in particular to a grain conveyor with an impurity winnowing function, which comprises a base, one side of the top of the base is fixedly connected with an impurity removal box through a support column, and a plurality of obliquely arranged material guide plates are sequentially mounted on two sides in the impurity removal box from top to bottom in a staggered manner. Collecting boxes are symmetrically and fixedly connected to the outer wall of one side of the impurity removing box, impurity discharging openings communicating with the corresponding collecting boxes are formed in the positions, located on the tops of the material guiding plates, of the impurity removing box, air spraying pipes are fixedly installed on the inner wall of the side, away from the collecting boxes, of the impurity removing box, and a conveying assembly is arranged on the side, away from the impurity removing box, of the top of the base. According to the grain impurity removal device, grain slides to the bottom in the impurity removal box in a waterfall-shaped scattered movement mode under the cooperation of the multiple staggered material guide plates in the impurity removal box, so that when a draught fan blows air to remove impurities, the problem that impurities wrapped in the grain are difficult to effectively remove due to the fact that the grain moves in a stacking mode is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of grain conveyors, in particular to a grain conveyor with an impurity air separation function. Background Art

[0002] Grain refers to the general term for various plant seeds in cooking food, which can also be generally referred to as grains. Grain crops are rich in nutrients, mainly protein, vitamins, dietary fiber, fat, starch, etc. At present, when transporting grain, belt conveyors are usually used for transportation, but it is difficult to remove various crop straws and dust left in the grain during transportation;

[0003] For example, in the prior art, there is a grain crop wind screening machine with a publication number of CN219401114U. When the device removes impurities from grain, after the grain enters the screening box, it will move to the bottom of the screening box in a state of being piled up in a mass, and the effect of dispersing the grain in the screening box cannot be achieved. When the fan is blowing air to remove impurities, it is easy to clean the impurities on the surface of the grain piled up in a mass, but it is difficult to clean the impurities wrapped inside, making it difficult to ensure the impurity removal effect in actual use. If the method of reducing the amount of grain input is adopted, the impurity removal efficiency will be low.

[0004] In view of the above technical defects, a solution is now proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a grain conveyor with impurity air separation function to solve the technical defects mentioned above. By cooperating with a plurality of staggered guide plates in the impurity removal box, the grain is made to slide to the bottom of the impurity removal box in a waterfall-like dispersed motion, so that when the fan is blowing air to remove impurities, it is effectively avoided that the grain moves in an accumulated manner, making it difficult to effectively remove impurities from the straw and dust wrapped inside; and by driving a plurality of guide plates to synchronously reciprocate around a rotating shaft by a driving motor, the guide plates are vibrated, which has the effect of continuously throwing the grain and impurities to the bottom of the impurity removal box during the movement, so that when the fan is blowing air, it is easier to discharge impurities from the impurity removal box, thereby further improving the impurity removal effect on the grain.

[0006] The grain conveyor with impurity air separation function comprises a base, a top side of the base is fixedly connected to a dust collecting box through a supporting column, a plurality of inclined guide plates are staggeredly installed on both sides of the dust collecting box from top to bottom, a collecting box is symmetrically fixedly connected to an outer wall of one side of the dust collecting box, a dust discharge port connected to the corresponding collecting box is opened on the top of each guide plate on the dust collecting box, an air jet pipe is fixedly installed at a position corresponding to each dust discharge port on the inner wall of the dust collecting box on a side away from the collecting box, a fan is bolted to the outer wall of the dust collecting box, a connecting pipe is fixedly connected between the fan and the air jet pipe, a feed pipe is fixedly connected to the top side of the dust collecting box, a discharge pipe is fixedly connected to the bottom side of the dust collecting box, and a conveying assembly is arranged on the top side of the base away from the dust collecting box.

[0007] Preferably, one side of the material guide plate is rotatably connected to the inner wall of the dust removal box via a rotating shaft, a movable groove is penetrated through each of the material guide plates, sliding grooves are symmetrically opened on the inner walls on both sides of the dust removal box, and the sliding grooves are located between the two groups of collection boxes, and a vertical plate is slidably connected in each of the sliding grooves, and movable rods slidably connected to the corresponding movable grooves are fixedly connected between the vertical plates.

[0008] Preferably, the top of the vertical plate passes through the top outer side of the debris removal box, the top of each vertical plate is fixedly connected to the bottom of the same horizontal plate, the top of the debris removal box is bolted to a drive motor, and the output shaft head of the drive motor is fixedly connected to a cam slidably connected to the bottom of the horizontal plate, and springs are symmetrically fixedly connected on both sides of the cam between the horizontal plate and the debris removal box.

[0009] Preferably, a filter screen is fixedly connected to the top of the collection box, a sealing plate is hingedly connected to the bottom of the collection box on one side away from the impurity removal box, and baffles 1 and 2 are fixedly connected to the top and bottom sides of each impurity discharge port on the inner side wall of the collection box.

[0010] Preferably, the conveying assembly includes a fixed plate, a mounting plate, a rotating roller and a conveyor belt. Two groups of fixed plates are symmetrically welded on both sides of the top of the base. The top of the opposite side of the fixed plate is rotatably connected to a mounting plate through a rotating shaft. A number of rotating rollers are equidistantly rotatably connected between the mounting plates along their length directions. The number of rotating rollers are connected through a conveyor belt transmission on their peripheries. The free end of the discharge pipe is located at the top of one side of the conveyor belt. An adjustment assembly for adjusting the height of the free end of the mounting plate is provided on the top of the base.

[0011] Preferably, the adjustment assembly includes a guide plate, a sliding rod, a cylinder and a push plate. The guide plates are symmetrically welded on both sides of the top of the base. The sliding rod is slidably connected between the guide plates. The top of the base is bolted to a cylinder. The piston rod head of the cylinder is fixedly connected to the sliding rod. Push plates are hinged between the two end portions of the sliding rod and the corresponding mounting plates.

[0012] The beneficial effects of the utility model are as follows:

[0013] (1) The utility model is to put grain into the impurity removal box through a feed pipe, and with the cooperation of a plurality of staggered guide plates, the grain slides to the bottom of the impurity removal box in a waterfall-like dispersed motion, so that when the fan blows air to remove impurities, the straw and dust in the grain are collected in the collection box through the impurity discharge port, thereby achieving a better impurity removal effect, and effectively avoiding the problem in the prior art that the grain moves in an accumulation manner, making it difficult to effectively remove the straw and dust wrapped inside;

[0014] (2) In the process of impurity removal, the utility model starts the driving motor to drive the plurality of guide plates to reciprocate around the rotating shaft, thereby realizing the vibration of the guide plates, which plays the effect of continuously throwing the grains and impurities to the bottom of the impurity removal box during the movement, so that the fan can more easily discharge the impurities from the impurity removal box when blowing, thereby further improving the impurity removal effect on the grains;

[0015] (3) The utility model is to use a cylinder to drive a sliding rod to move closer to or away from a debris removal box during grain transportation, and to change the height of the free end of a mounting plate with the cooperation of a push plate, so as to facilitate the transportation of grain to collection equipment at different heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings;

[0017] Figure 1 The utility model is a three-dimensional structure Figure 1 ;

[0018] Figure 2 The utility model is a three-dimensional structure Figure 2 ;

[0019] Figure 3 It is a cross-sectional view of the impurity removal box of the utility model;

[0020] Figure 4 It is a schematic diagram of the disassembly of the guide plate and the vertical plate of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the collection box of the utility model;

[0022] Figure 6 It is a structural stereogram of the jet pipe of the utility model;

[0023] Figure 7 It is a structural schematic diagram of the conveying component of the utility model.

[0024] Legend:

[0025] 1. Base; 11. Support column;

[0026] 2. De-dusting box; 21. Guide plate; 22. Jet pipe; 23. Fan; 24. Connecting pipe; 25. Feed pipe; 26. Discharge pipe; 27. Movable slot; 28. Slide; 29. ​​Vertical plate; 210. Movable rod; 211. Horizontal plate; 212. Driving motor; 213. Cam; 214. Spring;

[0027] 3. Collection box; 31. Exhaust port; 32. Filter screen; 33. Sealing plate; 34. Baffle 1; 35. Baffle 2;

[0028] 4. Conveying assembly; 41. Fixing plate; 42. Mounting plate; 43. Rotating roller; 44. Conveying belt;

[0029] 5. Adjustment assembly; 51. Guide plate; 52. Sliding rod; 53. Cylinder; 54. Push plate. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Embodiment 1:

[0032] When removing impurities from grain in the prior art, the grain will be piled up in a mass and move to the bottom of the box, which makes it impossible to disperse the grain and remove the impurities wrapped inside. The following solutions can be used to solve the problem:

[0033] See also Figure 1-Figure 6As shown, this embodiment is a grain conveyor with impurity air separation function, including a base 1, a top side of the base 1 is fixedly connected with a dust removal box 2 through a support column 11, and the dust removal box 2 is used to remove impurities from the conveyed grains. A plurality of inclined guide plates 21 are staggeredly installed on both sides of the dust removal box 2 from top to bottom. With the cooperation of the plurality of staggered guide plates 21, the grains slide to the bottom of the dust removal box 2 in a waterfall-like dispersed motion, which is easy to improve the effect of later air blowing and dust removal. A collecting box 3 is symmetrically fixedly connected to the outer wall of one side of the dust removal box 2, which is used to collect impurities blown out of the dust removal box 2;

[0034] A debris discharge port 31 connected to the corresponding collecting box 3 is provided on the top of each guide plate 21 of the debris removing box 2, and an air jet pipe 22 is fixedly installed at a position corresponding to each debris discharge port 31 on the inner wall of the debris removing box 2 on the side away from the collecting box 3. A fan 23 is bolted to the outer wall of the debris removing box 2, and a connecting pipe 24 is fixedly connected between the fan 23 and the air jet pipe 22. External air is drawn in by the fan 23 and injected into the air jet pipe 22 through the connecting pipe 24 to be sprayed out, so that straw and dust in the grain are blown out through the debris discharge port 31 to achieve a better debris removing effect. A feed pipe 25 is fixedly connected to one side of the top of the debris removing box 2 for putting the grain to be cleaned and transported into the debris removing box 2, and a discharge pipe 26 is fixedly connected to one side of the bottom of the debris removing box 2 for discharging the cleaned grain out of the debris removing box 2. A conveying component 4 is provided on the side of the top of the base 1 away from the debris removing box 2.

[0035] One side of the guide plate 21 is rotatably connected to the inner wall of the dust removal box 2 through a rotating shaft to achieve the purpose of rotating the guide plate 21. A movable groove 27 is opened through each guide plate 21. Slide grooves 28 are symmetrically opened on the inner walls of both sides of the dust removal box 2, and the slide grooves 28 are located between the two groups of collecting boxes 3. A vertical plate 29 is slidably connected in each slide groove 28. A movable rod 210 slidably connected to the corresponding movable groove 27 is fixedly connected between the vertical plates 29 to drive the vertical plate 29 to reciprocate up and down in the slide groove 28, and cooperate with the movable rod 210 and the movable groove 27 to synchronously drive multiple guide plates 21 to reciprocate around the rotating shaft, thereby realizing the vibration of the guide plate 21, which has the effect of continuously throwing up the grain and impurities in the process of moving to the bottom of the dust removal box 2.

[0036] The top of the vertical plate 29 penetrates to the top outer side of the debris removal box 2, and the top of each vertical plate 29 is fixedly connected to the bottom of the same horizontal plate 211. The top of the debris removal box 2 is bolted to a drive motor 212, and the output shaft head of the drive motor 212 is fixedly connected to a cam 213 that is slidably connected to the bottom of the horizontal plate 211. Springs 214 are symmetrically fixedly connected on both sides of the cam 213 between the horizontal plate 211 and the debris removal box 2. The drive motor 212 drives the cam 213 to rotate, and cooperates with the spring 214 to drive the horizontal plate 211 to reciprocate up and down, thereby driving the guide plate 21 to vibrate through the vertical plate 29.

[0037] A filter screen 32 is fixedly connected to the top of the collecting box 3, and the filter screen 32 is used to prevent the collected impurities from being discharged from the collecting box 3. A sealing plate 33 is hinged at the bottom of the collecting box 3 on one side away from the impurity removal box 2, so as to facilitate cleaning of impurities in the collecting box 3. The inner wall of the collecting box 3 is fixedly connected with an inclined baffle 1 34 and a baffle 2 35 on both the top and bottom sides of each impurity discharge port 31. The free end of the baffle 2 35 is inclined upward to prevent the vibrating guide plate 21 from causing part of the grain to enter the collecting box 3 through the impurity discharge port 31. The free end of the baffle 1 34 is inclined downward to prevent the impurities discharged through the top impurity discharge port 31 from entering the impurity removal box 2 again through the impurity discharge port 31 below.

[0038] Embodiment 2:

[0039] In view of the problem that it is difficult to change the conveying height according to the collection equipment at different heights during the grain conveying process, the following solutions can be used to solve it:

[0040] See also Figure 1 , Figure 2 and Figure 7 As shown, in this embodiment, the conveying assembly 4 includes a fixed plate 41, a mounting plate 42, a rotating roller 43 and a conveyor belt 44. Two sets of fixed plates 41 are symmetrically welded on both sides of the top of the base 1. The top of the opposite side of the fixed plate 41 is rotatably connected with a mounting plate 42 through a rotating shaft. A plurality of rotating rollers 43 are rotatably connected between the mounting plates 42 along their length directions. The plurality of rotating rollers 43 are transmission-connected through the conveyor belt 44 on their peripheries. The top height of the mounting plate 42 is higher than the top height of the conveyor belt 44, so as to avoid the problem of food scattering in the process of transportation. The rotating roller 43 on one side is driven to rotate by an external motor, thereby driving the conveyor belt 44 to rotate, thereby achieving the effect of conveying the cleaned grain. The free end of the discharge pipe 26 is located at the top of one side of the conveyor belt 44, which is convenient for discharging the cleaned grain onto the conveyor belt 44. A baffle is fixedly connected between the mounting plates 42 on the side of the discharge pipe 26 away from the conveyor belt 44, which is used to block the grain discharged onto the conveyor belt 44 to avoid the problem of some grain being scattered. An adjustment component 5 for adjusting the height of the free end of the mounting plate 42 is provided on the top of the base 1.

[0041] The adjusting assembly 5 includes a guide plate 51, a sliding rod 52, a cylinder 53 and a pushing plate 54. The guide plates 51 are symmetrically welded on both sides of the top of the base 1. The sliding rod 52 is slidably connected between the guide plates 51. The top of the base 1 is bolted with a cylinder 53. The piston rod head of the cylinder 53 is fixedly connected to the sliding rod 52. The pushing plates 54 are hinged between the two end portions of the sliding rod 52 and the corresponding mounting plates 42. The guide plates 51 are set so that the sliding rod 52 can have the effect of stabilizing the horizontal movement during the movement, so as to better cooperate with the pushing plate 54 to drive one side of the mounting plate 42 to tilt up.

[0042] The working process and principle of the utility model are as follows:

[0043] The grain is put into the impurity removal box 2 through the Jiaolong conveyor and the feed pipe 25. The grain in the impurity removal box 2 slides to the bottom of the impurity removal box 2 in a waterfall-like dispersed motion under the cooperation of multiple staggered guide plates 21, which effectively avoids the problem of grain accumulation and difficulty in effectively removing impurities from the straw and dust wrapped inside in the later stage. At the same time, the fan 23 is started to extract external air, and the air is injected into the jet pipe 22 through the connecting pipe 24 and sprayed out, so that the straw and dust in the grain are blown out of the impurity removal box 2 through the impurity discharge port 31 and enter the collection box 3 for collection;

[0044] The driving motor 212 is started to drive the cam 213 to rotate, and the raised portion of the cam 213 is constantly in contact with the bottom of the horizontal plate 211, and with the cooperation of the spring 214, the horizontal plate 211 is driven to reciprocate up and down. The horizontal plate 211 drives the multiple movable rods 210 to move through the vertical plate 29, and the movable rods 210 cooperate with the corresponding movable grooves 27 to synchronously drive the guide plate 21 to reciprocate around the rotating shaft, so as to achieve the vibration of the guide plate 21, and play the effect of continuously throwing the grain and impurities to the bottom of the impurity removal box 2 during the movement, which makes it easier for the fan 23 to discharge the impurities from the impurity removal box 2 when blowing air;

[0045] After the impurities are removed, the grain slides onto the conveyor belt 44 through the discharge pipe 26, and the rotating roller 43 on one side is driven by an external motor to rotate, thereby driving the conveyor belt 44 to rotate, thereby achieving the effect of conveying the impurities-free grain. When the grain is transported to the collection equipment at different heights, the sliding rod 52 is driven by the cylinder 53 to move closer to or away from the impurity removal box 2, and the height of the free end of the mounting plate 42 is changed with the cooperation of the push plate 54, so as to facilitate the transportation of the grain to the collection equipment at different heights.

[0046] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A grain conveyor with impurity winnowing function, comprising a base (1), characterized in that: A debris removal box (2) is fixedly connected to one side of the top of the base (1) via a support column (11); a plurality of inclined guide plates (21) are staggeredly installed on both sides of the debris removal box (2) from top to bottom; a collection box (3) is symmetrically fixedly connected to an outer wall of one side of the debris removal box (2); a debris discharge port (31) connected to the corresponding collection box (3) is provided on the top of each guide plate (21) of the debris removal box (2); and an inner wall of the debris removal box (2) on one side away from the collection box (3) is provided. An air jet pipe (22) is fixedly installed at a position corresponding to each impurity discharge port (31); a fan (23) is bolted to the outer wall of the impurity removal box (2); a connecting pipe (24) is fixedly connected between the fan (23) and the air jet pipe (22); a top side of the impurity removal box (2) is fixedly connected to a feed pipe (25); a bottom side of the impurity removal box (2) is fixedly connected to a discharge pipe (26); and a conveying assembly (4) is arranged on the top of the base (1) away from the impurity removal box (2).

2. A grain conveyor with impurity winnowing function according to claim 1, characterized in that: One side of the guide plate (21) is rotatably connected to the inner wall of the impurity removal box (2) via a rotating shaft, and each of the guide plates (21) is provided with a movable groove (27) extending therethrough. Slide grooves (28) are symmetrically provided on the inner walls of both sides of the impurity removal box (2), and the slide grooves (28) are located between the two groups of collection boxes (3). A vertical plate (29) is slidably connected in each of the slide grooves (28), and a movable rod (210) slidably connected to the corresponding movable groove (27) is fixedly connected between the vertical plates (29).

3. The grain conveyor with impurity winnowing function according to claim 2 is characterized in that: The top of the vertical plate (29) penetrates the top outer side of the debris removal box (2), and the top of each vertical plate (29) is fixedly connected to the bottom of the same horizontal plate (211). The top of the debris removal box (2) is bolted to a driving motor (212), and the output shaft head of the driving motor (212) is fixedly connected to a cam (213) slidably connected to the bottom of the horizontal plate (211). Springs (214) are symmetrically fixedly connected on both sides of the cam (213) between the horizontal plate (211) and the debris removal box (2).

4. The grain conveyor with impurity winnowing function according to claim 1, characterized in that: The top of the collection box (3) is fixedly connected to a filter screen (32), the bottom of the side of the collection box (3) away from the impurity removal box (2) is hingedly connected to a sealing plate (33), and the inner side wall of the collection box (3) is fixedly connected to the top and bottom sides of each impurity discharge port (31) with a baffle plate 1 (34) and a baffle plate 2 (35) which are arranged obliquely.

5. The grain conveyor with impurity winnowing function according to claim 1, characterized in that: The conveying assembly (4) comprises a fixed plate (41), a mounting plate (42), a rotating roller (43) and a conveyor belt (44). Two groups of fixed plates (41) are symmetrically welded on both sides of the top of the base (1). The top of the opposite side of the fixed plate (41) is rotatably connected to a mounting plate (42) via a rotating shaft. A plurality of rotating rollers (43) are rotatably connected between the mounting plates (42) along their length direction. The plurality of rotating rollers (43) are connected by transmission via a conveyor belt (44) on their peripheries. The free end of the discharge pipe (26) is located at the top of one side of the conveyor belt (44). An adjusting assembly (5) for adjusting the height of the free end of the mounting plate (42) is provided at the top of the base (1).

6. The grain conveyor with impurity winnowing function according to claim 5, characterized in that: The adjustment assembly (5) comprises a guide plate (51), a sliding rod (52), a cylinder (53) and a push plate (54); the guide plates (51) are symmetrically welded on both sides of the top of the base (1); the sliding rod (52) is slidably connected between the guide plates (51); the top of the base (1) is bolted with a cylinder (53); the piston rod head of the cylinder (53) is fixedly connected to the sliding rod (52); and the push plates (54) are hinged between the two end portions of the sliding rod (52) and the corresponding mounting plates (42).

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