Vibrating screening mechanism and grain separating equipment

Abstract

The invention discloses a vibration screening mechanism and grain separation equipment, the vibration screening mechanism comprises a seat body, a screening device and a driving device, a baffle plate, a pore plate and a bottom plate of a feeding piece are sequentially arranged side by side from top to bottom so as to form a first feeding channel between the baffle plate and the pore plate and a second feeding channel between the pore plate and the bottom plate through separation; the baffle is provided with a first through hole, the pore plate is provided with a second through hole, in screened materials, rice with the large length and the small particle size is sent out through the first feeding channel, broken rice with the small length and the small particle size is sent out through the second feeding channel, and therefore the rice and the broken rice with the different lengths but the similar particle sizes can be effectively separated; and the second via hole is not easy to be blocked by the rice in the vertical posture.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery and equipment, and in particular to a vibration screening mechanism and grain separation equipment. Background Art

[0002] Most of the existing grain separation equipment is used to separate mixtures with large differences in specific gravity during the rice processing stage, such as separating rice grains from stones, or separating rice grains from husks with large differences in quality. After screening, a mixture of broken rice, rice grains and grass seeds will be obtained.

[0003] In the above mixture, there is broken rice accounting for about 50%. However, since the particle size and specific gravity of broken rice and rice are relatively close, it is difficult to separate them accurately. Even if multiple devices are used for separation, the separation cost will be too high. Therefore, in the prior art, most rice processing companies treat the mixture of broken rice and grass seeds as waste, or grind them as feed, which makes it impossible to make better use of the remaining broken rice, resulting in certain economic losses. Summary of the invention

[0004] The present invention aims to provide a vibration screening mechanism and grain separation equipment which can effectively separate broken rice and paddy rice, are not easy to be blocked and improve economic benefits.

[0005] In order to solve the above technical problems, the present invention provides a vibrating screening mechanism, comprising:

[0006] seat body;

[0007] The screening device comprises a feeding member, an elastic member, a perforated plate and a baffle, wherein the elastic member is arranged on the lower side of the feeding member and is elastically supported on the seat body by the elastic member, the feeding member is formed with a feeding trough, the upper side of the feeding trough and the end side thereof in the first direction are both openly arranged, the feeding member comprises a bottom plate located on the lower side thereof, the baffle plate and the perforated plate are arranged on the feeding member, the baffle plate, the perforated plate and the bottom plate are arranged side by side in sequence from top to bottom, the baffle plate and the perforated plate divide the feeding trough into a first feeding trough between the baffle plate and the perforated plate A material channel, and a second material feeding channel between the orifice plate and the bottom plate, the first material feeding channel and the second material feeding channel both extend along the first direction to the end side, the maximum dimension of the first material feeding channel in the vertical direction is D, a plurality of first through holes arranged in a flat pattern are formed on the baffle plate, a plurality of second through holes arranged in a flat pattern are formed on the orifice plate, each of the first through holes and each of the second through holes are staggered in the vertical direction, the diameter of each of the first through holes is R1, the diameter of each of the second through holes is R2, wherein R1 is greater than D, and D is greater than R2;

[0008] The driving device is arranged on the lower side of the bottom plate and is used for providing a vibration force for driving the feeding member to vibrate so that the material in the feeding trough moves along a first direction.

[0009] Optionally, one of the baffle plate and the orifice plate is installed in an adjustably position relative to the other, so that the size of the first feeding channel in the up-down direction is adjustable.

[0010] Optionally, the baffle is made of transparent material.

[0011] Optionally, the vibrating screening mechanism also includes a material receiving hopper arranged on the upper side of the baffle, the upper side of the material receiving hopper is open and enclosed to form a material receiving channel, the baffle has a first area corresponding to the lower end of the material receiving channel, and a second area outside the material receiving channel, the first area is provided with a plurality of the first through holes, the second area is completely provided, the orifice plate is completely provided directly below the first area, and the orifice plate is provided with a plurality of the second through holes directly below the second area.

[0012] Optionally, the peripheral wall of the receiving hopper is at least partially inclined inward from top to bottom.

[0013] Optionally, the screening device also includes two groups of mounting components and two groups of fixing components, the two groups of mounting components are arranged on both sides of the baffle in the second direction, the feeding part also includes two side plates arranged on both sides of the bottom plate in the second direction, each of the side plates extends upward from the bottom plate, the two groups of fixing components are arranged on the two side plates one by one, the two groups of mounting components are adjustable in position in the up and down directions, and are assembled on the two groups of fixing components one by one.

[0014] Optionally, each group of the mounting components includes a mounting rod and multiple groups of fasteners, the mounting rod is extended along a first direction, the multiple groups of fasteners are fixed to the mounting rod at intervals along the first direction, each group of the fasteners includes a C-shaped frame, a guide bolt and a fixing bolt, the C-shaped frame includes a first plate and a second plate arranged side by side from top to bottom, and a web connected between the first plate and the second plate, the mounting rod is passed between the first plate and the second plate of each C-shaped frame, the guide bolt passes through the mounting rod and the web in sequence to connect each C-shaped frame and the mounting rod, each fixing bolt passes through the upper side of the first plate and is inserted between the first plate and the second plate, and the bottom plate is clamped between the lower end of the fixing bolt and the upper side of the second plate;

[0015] Each group of the fixing components includes an elongated hole and a guide member opened on the corresponding side plate. There are a plurality of elongated holes, which are spaced apart on the corresponding side plate along the first direction. Each of the elongated holes extends in the up-and-down directions respectively. A plurality of guide bolts are correspondingly passed through the plurality of elongated holes. There are two guide members, which are respectively arranged at the two ends of the mounting rod in the first direction. Each of the guide members is fixed to the corresponding side plate and is respectively provided with a guide groove extending in the up-and-down directions and opening toward the corresponding mounting rod. The respective ends of the corresponding mounting rod in the first direction are correspondingly inserted into the guide grooves.

[0016] Optionally, the screening device also includes two groups of adjustment components, which are installed on the two side panels one by one, and each group of adjustment components includes a handwheel, a ruler and a transmission member. The handwheel is rotatably installed on the corresponding side panel through a rotating shaft, and the transmission member is transmission-connected between the rotating shaft and one of the multiple guide bolts. The ruler is arranged on the outer side of the side panel to mark the position of the baffle in the up and down directions.

[0017] The present invention also provides a grain separation device, comprising:

[0018] frame;

[0019] The vibrating screening mechanism as described above, wherein the seat is fixed to the frame;

[0020] A collecting assembly, comprising a first collecting box, a second collecting box, a third collecting box and a fourth collecting box, wherein the end of the first feeding channel is connected to the first collecting box; and

[0021] The air selection mechanism is arranged on the frame, and the air selection mechanism includes a first air selection device, a second air selection device, an air network pipe and a fan. The fan is connected to the first air selection device and the second air selection device respectively through the air network pipe. The first air selection device has a first material inlet, a first material outlet and a first material distribution port. The first material inlet is opened on the upper side of the first air selection device, the first material distribution port is opened on the peripheral side of the first air selection device, and is connected to the second collecting box through the air network pipe. The first material outlet is opened on the bottom side of the first air selection device and is connected to the upper side of the baffle through the first material outlet. The second air selection device has a second material inlet, a second material outlet and a second material distribution port. The second material inlet is opened on the upper side of the second air selection device and is connected to the end of the second feeding channel. The second material distribution port is opened on the peripheral side of the second air selection device and is connected to the third collecting box through the air network pipe. The second material outlet is opened on the bottom side of the second air selection device and is connected to the fourth collecting box through the second material outlet.

[0022] Optionally, the wind network pipeline includes a first pipeline connecting the fan and the first air selection device, and a second pipeline connecting the fan and the second air selection device, and flow rate valves are respectively provided on the first pipeline and the second pipeline.

[0023] The technical solution provided by the present invention has the following advantages:

[0024] The vibrating screening mechanism provided by the present invention includes a seat body, a screening device and a driving device, wherein the screening device includes a feeding piece and a baffle and a perforated plate arranged on the feeding piece, the feeding piece is elastically supported on the seat body, and is vibrated by the vibration force provided by the driving device, the baffle, the perforated plate and the bottom plate of the feeding piece are arranged side by side from top to bottom in sequence to separate and form a first feeding channel between the baffle and the perforated plate and a second feeding channel between the perforated plate and the bottom plate, a first through hole is opened on the baffle, and a second through hole is opened on the orifice plate, the first through hole and the second through hole are staggered in the up and down directions, the diameter of the first through hole is larger than the spacing between the baffle and the orifice plate, and the diameter of the second through hole is smaller than the spacing between the baffle and the orifice plate. The materials fed into the vibrating screening device may include rice and broken rice with the same particle size but different lengths. The materials first fall to the upper side of the baffle. After passing through the first through hole, the rice with a longer length and a smaller particle size is adjusted to a lying posture, and thus cannot continue to pass through the second through hole, and is then sent out by the first feeding channel, while the broken rice with a smaller length and particle size continues to enter the second feeding channel through the second through hole, and is then sent out by the second feeding channel. In this way, rice and broken rice with different lengths but similar particle sizes can be effectively separated, and the second through hole is not easily blocked by rice in a vertical posture. The separated broken rice can be fully utilized to improve economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of a grain separation device provided by the present invention;

[0027] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of the grain separation device in another viewing angle, wherein the small window is not shown;

[0028] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0029] Figure 4 for Figure 1 Schematic diagram of the three-dimensional structure of the grain separation equipment;

[0030] Figure 5 for Figure 4 Schematic diagram of the three-dimensional structure of the vibrating screening mechanism;

[0031] Figure 6 for Figure 5 Schematic diagram of the three-dimensional structure of the vibrating screening mechanism;

[0032] Figure 7 for Figure 1 A schematic diagram of the three-dimensional structure of the first discharging barrel and the receiving hopper;

[0033] Figure 8 for Figure 7 A schematic diagram of the three-dimensional structure of the middle baffle;

[0034] Fig. 9 for Figure 8 The enlarged schematic diagram of point B in the middle;

[0035] Fig.10 for Figure 7 Schematic diagram of the three-dimensional structure of the feeding part;

[0036] Fig.11 for Figure 4 Schematic diagram of the three-dimensional structure of the wind selection mechanism.

[0037] Description of reference numerals:

[0038] 1000-grain separation equipment; 100-vibration screening mechanism; 10-base; 20-screening device; 21-feeding member; 210-feeding trough; 211-bottom plate; 212-side plate; 22-baffle plate; 220-first through hole; 221-first area; 222-second area; 23-orifice plate; 230-second through hole; 24-elastic member; 25-receiving hopper; 251-peripheral wall; 252-guide plate; 26-receiving channel; 27-installation assembly; 270-fastener; 271-C-frame; 2711-first plate; 2712-second plate; 2713-web plate; 272-guide bolt; 273-fixing bolt; 274-installation rod; 28-fixing assembly; 2 81-long hole; 282-guide piece; 283-guide groove; 29-adjusting assembly; 291-handwheel; 292-scaler; 30-driving device; 200-frame; 201-first collecting box; 202-second collecting box; 203-third collecting box; 204-fourth collecting box; 40-air separation mechanism; 41-first air separation device; 411-first feeding port; 412-first discharging barrel; 413-first material distribution port; 42-second air separation device; 421-second feeding port; 422-second discharging barrel; 423-second material distribution port; 43-wind network pipeline; 431-first pipeline; 432-second pipeline; 44-blower; 45-flow rate valve; 50-small window. DETAILED DESCRIPTION

[0039] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0040] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0041] See also Figures 1 to 11 The present invention provides a grain separation device 1000 and a vibrating screening mechanism 100 thereof. The grain separation device 1000 comprises a frame 200, a vibrating screening mechanism 100 and a wind selection mechanism 40 arranged on the frame 200, and a collection assembly for collecting separated products. The frame 200 is used to carry and fix the grain separation device 1000, the vibrating screening mechanism 100 usually utilizes vibration and a filter screen to achieve separation of materials with different particle sizes, and the wind selection mechanism 40 generally utilizes wind pressure to achieve separation of materials with different specific gravities.

[0042] In this embodiment, the grain separation device 1000 is used to separate a mixture of broken rice, rice grains, grass seeds, etc. It can be understood that the material generally also contains waste materials such as husks and dust. Figure 1 The collecting component includes a first collecting box 201, a second collecting box 202, a third collecting box 203 and a fourth collecting box 204. The first collecting box 201 is used to collect rice, the second collecting box 202 collects waste materials such as rice husks and dust, the third collecting box 203 collects grass seeds, and the fourth collecting box 204 collects broken rice.

[0043] In the prior art, since the specific gravity and particle size of broken rice and rice grains in the mixed material are relatively close, it is difficult to accurately separate them at low cost. Figures 5 to 10 The present invention provides a vibration screening mechanism 100 including a seat body 10, a screening device 20 and a driving device 30.

[0044] The base 10 is used to be fixed to the frame 200, and can be specifically arranged integrally with the frame 200, or can be fixedly connected to the frame 200. The screening device 20 includes a feeding member 21, an elastic member 24, a perforated plate 23 and a baffle 22. The elastic member 24 is arranged on the lower side of the feeding member 21, and is elastically supported on the base 10 by the elastic member 24. The elastic member 24 is generally arranged as a compression spring. The feeding member 21 is formed with a feeding trough 210. The upper side of the feeding trough 210 and its end side in the first direction are both openly arranged. The feeding member 21 includes a bottom plate 211 located on the lower side thereof. The driving device 30 is arranged on the lower side of the bottom plate 211, and includes a vibration motor, which is used to provide vibration force. When the vibration motor is working, it drives the feeding member 21 to vibrate as a whole relative to the base 10, so that the material in the feeding trough 210 moves along the first direction.

[0045] The baffle plate 22 and the orifice plate 23 are installed on the feeding member 21. The baffle plate 22, the orifice plate 23 and the bottom plate 211 are arranged side by side from top to bottom. The baffle plate 22 and the orifice plate 23 separate the feeding trough 210 into a first feeding channel between the baffle plate 22 and the orifice plate 23, and a second feeding channel between the orifice plate 23 and the bottom plate 211. The first feeding channel and the second feeding channel both extend to the end side along the first direction, so that the materials in the first feeding channel and the second feeding channel can be sent out of the feeding trough 210 along the first direction. The maximum dimension of the first feeding channel in the vertical direction is D, the baffle plate 22 is provided with a plurality of first through holes 220 arranged in a flat pattern, the orifice plate 23 is provided with a plurality of second through holes 230 arranged in a flat pattern, each of the first through holes 220 and each of the second through holes 230 are staggered in the vertical direction, the diameter of each of the first through holes 220 is R1, the diameter of each of the second through holes 230 is R2, wherein R1 is greater than D, and D is greater than R2. It can be understood that the numerical values ​​of R1, R2 and D depend on the grain mixture to be separated, specifically, R1 should be greater than the length dimension of general rice, D should be less than the length dimension of general rice, and greater than the particle size of general broken rice and grass seeds, R2 should be less than D, and greater than the particle size of general broken rice and grass seeds, so that the materials in the first feeding channel and the second feeding channel can move smoothly and be separated according to the preset screening rules.

[0046] Specifically, the mixed material first falls to the upper side of the baffle 22, and after passing through the first through hole 220, the rice grains with longer length and smaller particle size are adjusted to a lying position, and thus cannot continue to pass through the second through hole 230, and are then sent out by the first feeding channel, while the broken rice and / or grass seeds with smaller length and particle size continue to enter the second feeding channel through the second through hole 230, and are then sent out by the second feeding channel. In this way, rice grains with different lengths but similar particle sizes and broken rice and / or grass seeds can be effectively separated, and the second through hole 230 is not easily blocked by the rice grains in a vertical position.

[0047] On the basis of the previous embodiment, one of the baffle plate 22 and the orifice plate 23 is adjustably installed relative to the other position, so that the size of the first feeding channel in the up and down direction is adjustable. In this way, the size of the first feeding channel can be set according to the size of the rice to be separated, so that the first feeding channel is not easily blocked when the separation accuracy is met, thereby improving the feeding and separation efficiency.

[0048] Furthermore, the baffle 22 is made of a transparent material. This makes it easier for operators to observe and adjust the relative position between the baffle 22 and the orifice plate 23 according to the movement of the rice in the first feeding channel. Specifically, when the first feeding channel is blocked, the distance between the baffle 22 and the orifice plate 23 can be increased. When it is observed that the rice under the baffle 22 is not adjusted to a flat position and / or the second feeding channel is mixed with rice, the distance between the baffle 22 and the orifice plate 23 should be decreased.

[0049] For further information, see Figure 5 and Figure 6 The vibrating screening mechanism 100 also includes a material receiving hopper 25 arranged on the upper side of the baffle 22. The upper side of the material receiving hopper 25 is open and used to receive the material to be separated. The material receiving hopper 25 encloses a material receiving channel 26. The baffle 22 has a first area 221 corresponding to the lower end of the material receiving channel 26, and a second area 222 located outside the material receiving channel 26. The first area 221 is provided with a plurality of first through holes 220, and the second area 222 is completely provided. The orifice plate 23 is completely provided directly below the first area 221, and the orifice plate 23 is provided with a plurality of second through holes 230 corresponding to the second area 222. In this embodiment, the material received by the receiving hopper 25 reaches the upper side of the first area 221, falls between the baffle 22 and the orifice plate 23 through the first through hole 220, and the rice therein is adjusted to a lying posture and moves along the first feeding channel to the second area 222. After being vibrated in the second area 222, the broken rice and grass seeds therein fall into the second feeding channel below the orifice plate 23 through the second through hole 230. In this way, the rice in the first feeding channel is sent to the end and then sent out, and the broken rice and grass seeds in the second feeding channel are sent to the end and then sent out.

[0050] Please continue reading Figure 7 The peripheral wall 251 of the receiving hopper 25 is at least partially inclined from top to bottom and inward to guide the material to the first area 221 . A guide plate 252 inclined to the first area 221 may also be provided in the receiving hopper 25 .

[0051] Based on the above examples, please continue to refer to Figures 6 to 10The screening device 20 further includes two groups of mounting components 27 and two groups of fixing components 28. The two groups of mounting components 27 are arranged on both sides of the baffle 22 in the second direction. The feeding member 21 further includes two side plates 212 arranged on both sides of the bottom plate 211 in the second direction. Each of the side plates 212 extends upward from the bottom plate 211. The two groups of fixing components 28 are arranged on the two side plates 212 in a one-to-one correspondence. The two groups of mounting components 27 are adjustable in position in the up-down direction and are assembled on the two groups of fixing components 28 in a one-to-one correspondence. In this way, the baffle 22 and the orifice plate 23 are installed with an adjustable spacing.

[0052] Further, each group of the mounting assembly 27 includes a mounting rod 274 and a plurality of groups of fasteners 270, the mounting rod 274 extending along a first direction, the plurality of groups of fasteners 270 being fixed to the mounting rod 274 at intervals along the first direction, each group of the fasteners 270 respectively including a C-shaped frame, a guide bolt 272 and a fixing bolt 273, the C-shaped frame including a first plate 2711 and a second plate 2712 arranged side by side from top to bottom, and a web connected between the first plate 2711 and the second plate 2712 2713, the mounting rod 274 is passed through the first plate 2711 and the second plate 2712 of each C-frame, the guide bolt 272 passes through the mounting rod 274 and the web 2713 in sequence to connect each C-frame and the mounting rod 274, each fixing bolt 273 passes through the upper side of the first plate 2711 and is inserted between the first plate 2711 and the second plate 2712, and the bottom plate 211 is clamped between the lower end of the fixing bolt 273 and the upper side of the second plate 2712.

[0053] Each group of the fixing components 28 includes an elongated hole 281 and a guide member 282 opened on the corresponding side plate 212. The elongated holes 281 are provided in plurality and are spaced apart on the corresponding side plate 212 along the first direction. The elongated holes 281 extend in the up-down direction respectively. The guide bolts 272 are correspondingly penetrated through the elongated holes 281 one by one. The guide members 282 are provided in two, and the two guide members 282 are respectively provided at the two ends of the mounting rod 274 in the first direction. The guide members 282 are fixed to the corresponding side plate 212 and are respectively provided with a guide groove 283 extending in the up-down direction and opening toward the corresponding mounting rod 274. The ends of the corresponding mounting rod 274 in the first direction are correspondingly inserted into the guide grooves 283. In this way, the mounting components 27 and the fixing components 28 are adjustedly installed and matched, and the baffle 22 is stably supported.

[0054] Furthermore, the screening device 20 also includes two groups of adjustment components 29, which are arranged on the two side plates 212 in a one-to-one correspondence. Each group of adjustment components includes a hand wheel 291, a scale 292 and a transmission component. The hand wheel 291 is rotatably installed on the corresponding side plate 212 through a rotating shaft. The transmission component is connected between the rotating shaft and one of the plurality of guide bolts 272. The scale 292 is arranged on the outer side of the side plate 212 to mark the position of the baffle 22 in the up and down direction. Therefore, the up and down position of the baffle 22 can be adjusted by rotating the hand wheel 291. Preferably, as Figure 1 and 2 As shown, a small window 50 that can be opened can be provided on the housing. When the position of the baffle 22 needs to be adjusted, the small window 50 can be opened, and the hand wheel 291 can be conveniently turned according to the scale 292 to adaptively adjust the upper and lower positions of the baffle 22.

[0055] On the basis of the above embodiments, the grain separation equipment 1000 provided by the present invention also includes an air selection mechanism 40, which is arranged on the frame 200, and the air selection mechanism 40 includes a first air selection device 41, a second air selection device 42, a wind network pipe 43 and a fan 44, and the fan 44 is connected to the first air selection device 41 and the second air selection device 42 through the wind network pipe 43 respectively, and the first air selection device 41 has a first feed inlet 411, a first feed outlet and a first feed outlet 413, the first feed inlet 411 is opened on the upper side of the first air selection device 41, and the first feed outlet 413 is opened on the peripheral side of the first air selection device 41 and passes through the wind network pipe 43. The second collecting box 202 is connected, the first discharge port is opened at the bottom side of the first air separation device 41, and is connected to the upper side of the baffle 22 through the first discharge cylinder 412, the second air separation device 42 has a second inlet 421, a second discharge port and a second dividing port 423, the second inlet 421 is opened at the upper side of the second air separation device 42, and is connected to the end of the second feeding channel, the second dividing port 423 is opened at the peripheral side of the second air separation device 42, and is connected to the third collecting box 203 through the wind network pipe 43, the second discharge port is opened at the bottom side of the second air separation device 42, and is connected to the fourth collecting box 204 through the second discharge cylinder 422.

[0056] In an optional embodiment, the separation process of the mixed material is as follows: the mixed material is fed from the first feed port 411, and after separation by the first air separation device 41, the husks and dust with the lightest specific gravity are collected in the second collection box 202, and then the remaining materials are separated by the vibration screening device 20, wherein the rice is fed into the second collection box 202 through the first feeding channel, and the mixture of grass seeds and broken rice enters the second air separation device 42 through the second feed port 421 for further separation, wherein the grass seeds with smaller specific gravity are collected in the third collection box 203, and the broken rice with larger specific gravity enters the fourth collection box 204. The grain separation device 1000 provided by the present invention effectively separates waste materials, rice, broken rice and grass seeds in mixed grains in a single process through the cooperation of two sets of air separation devices and the vibration screening device 20, and has high separation efficiency and low cost, and the separated products can be effectively utilized, thereby improving economic benefits.

[0057] Preferably, the wind network pipeline 43 includes a first pipeline 431 connecting the fan 44 and the first air selection device 41, and a second pipeline 432 connecting the fan 44 and the second air selection device 42, and the first pipeline 431 and the second pipeline 432 are respectively provided with flow rate valves 45. In this way, the corresponding flow rate valve 45 can be operated according to the specific discharge conditions and the conditions of the mixture to adjust the wind speed of the corresponding first air selection device 41 or the second air selection device 42, so that various components in the mixture are effectively separated.

[0058] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, ordinary technicians in this field can make other different forms of changes or modifications without creative work, which should fall within the scope of protection of the present invention.

Claims

1. A vibrating screening mechanism (100), characterized in that: include: base(10); The screening device (20) comprises a feeding member (21), an elastic member (24), a perforated plate (23) and a baffle (22); the feeding member (21) is provided with the elastic member (24) at the lower side and is elastically supported on the seat (10) by the elastic member (24); the feeding member (21) is formed with a feeding trough (210); the upper side of the feeding trough (210) and the end side thereof in a first direction are both open; the feeding member (21) comprises a bottom plate (211) located at the lower side thereof; the baffle (22) and the perforated plate (23) are arranged on the feeding member (21); the baffle (22), the perforated plate (23) and the bottom plate (211) are arranged side by side in sequence from top to bottom; the baffle (22) and the perforated plate (23) form the feeding trough (210) 10) is divided into a first feeding channel between the baffle plate (22) and the orifice plate (23), and a second feeding channel between the orifice plate (23) and the bottom plate (211), the first feeding channel and the second feeding channel both extend along the first direction to the end side, the maximum dimension of the first feeding channel in the vertical direction is D, the baffle plate (22) is provided with a plurality of first through holes (220) arranged in a flat pattern, the orifice plate (23) is provided with a plurality of second through holes (230) arranged in a flat pattern, each of the first through holes (220) and each of the second through holes (230) are staggered in the vertical direction, the diameter of each of the first through holes (220) is R1, the diameter of each of the second through holes (230) is R2, wherein R1 is greater than D, and D is greater than R2; The driving device (30) is arranged on the lower side of the bottom plate (211) and is used to provide a vibration force for driving the feeding member (21) to vibrate, so that the material in the feeding trough (210) moves along a first direction.

2. The vibrating screening mechanism (100) according to claim 1, characterized in that: One of the baffle plate (22) and the orifice plate (23) is installed in an adjustably position relative to the other, so that the size of the first feeding channel in the up-down direction is adjustable.

3. The vibrating screening mechanism (100) according to claim 2, characterized in that: The baffle (22) is made of transparent material.

4. The vibrating screening mechanism (100) according to claim 3, characterized in that: The vibrating screening mechanism (100) further comprises a material receiving hopper (25) arranged on the upper side of the baffle (22); the upper side of the material receiving hopper (25) is open and encloses a material receiving channel (26); the baffle (22) has a first area (221) corresponding to the lower end of the material receiving channel (26), and a second area (222) located outside the material receiving channel (26); the first area (221) is provided with a plurality of the first through holes (220); the second area (222) is completely provided; the orifice plate (23) is completely provided directly below the first area (221); and the orifice plate (23) is provided with a plurality of the second through holes (230) directly below the second area (222).

5. The vibrating screening mechanism (100) according to claim 4, characterized in that: The peripheral wall (251) of the receiving hopper (25) is at least partially arranged to be inclined inward from top to bottom.

6. The vibrating screening mechanism (100) according to any one of claims 2 to 5, characterized in that: The screening device (20) further comprises two groups of mounting components (27) and two groups of fixing components (28), the two groups of mounting components (27) being arranged on both sides of the baffle (22) in the second direction, the feeding member (21) further comprises two side plates (212) being arranged on both sides of the bottom plate (211) in the second direction, each of the side plates (212) extending upward from the bottom plate (211), the two groups of fixing components (28) being arranged on the two side plates (212) in a one-to-one correspondence, the two groups of mounting components (27) being adjustable in position in the up-down direction, and being assembled on the two groups of fixing components (28) in a one-to-one correspondence.

7. The vibrating screening mechanism (100) according to claim 6, characterized in that: Each group of the mounting components (27) comprises a mounting rod (274) and a plurality of groups of fasteners (270), wherein the mounting rod (274) is extended along a first direction, and the plurality of groups of fasteners (270) are fixed to the mounting rod (274) at intervals along the first direction, and each group of the fasteners (270) comprises a C-shaped frame, a guide bolt (272) and a fixing bolt (273), wherein the C-shaped frame comprises a first plate (2711) and a second plate (2712) arranged side by side from top to bottom, and a web plate (2711) connected between the first plate (2711) and the second plate (2712). 3), the mounting rod (274) is inserted between the first plate (2711) and the second plate (2712) of each C-shaped frame, the guide bolt (272) passes through the mounting rod (274) and the web (2713) in sequence to connect each C-shaped frame and the mounting rod (274), each fixing bolt (273) passes through the upper side of the first plate (2711) and is inserted between the first plate (2711) and the second plate (2712), and the bottom plate (211) is clamped between the lower end of the fixing bolt (273) and the upper side of the second plate (2712); Each group of the fixing components (28) includes an elongated hole (281) and a guide member (282) opened on the corresponding side plate (212). There are a plurality of elongated holes (281) and they are spaced apart along the first direction on the corresponding side plate (212). Each of the elongated holes (281) extends in the up-down direction respectively. A plurality of guide bolts (272) are correspondingly inserted through the plurality of elongated holes (281). There are two guide members (282), which are respectively arranged at the two ends of the mounting rod (274) in the first direction. Each of the guide members (282) is fixed to the corresponding side plate (212) and is respectively provided with a guide groove (283) extending in the up-down direction and opening toward the corresponding mounting rod (274). Each end of the corresponding mounting rod (274) in the first direction is correspondingly inserted into each of the guide grooves (283).

8. The vibrating screening mechanism (100) according to claim 7, characterized in that: The screening device (20) further comprises two groups of adjustment components (29), the two groups of adjustment components (29) being arranged one by one on the two side plates (212), each group of adjustment components comprising a hand wheel (291), a scale (292) and a transmission component, the hand wheel (291) being rotatably mounted on the corresponding side plate (212) via a rotating shaft, the transmission component being transmission-connected between the rotating shaft and one of the plurality of guide bolts (272), the scale (292) being arranged on the outer side of the side plate (212) for marking the position of the baffle (22) in the up and down directions.

9. A grain separation device (1000), characterized in that: include: Rack(200); The vibrating screening mechanism (100) according to any one of claims 1 to 8, wherein the seat (10) is fixed to the frame (200); A collecting assembly, comprising a first collecting box (201), a second collecting box (202), a third collecting box (203) and a fourth collecting box (204), wherein the end of the first feeding channel is connected to the first collecting box (201); and A wind selection mechanism (40) is arranged on the frame (200), the wind selection mechanism (40) comprises a first wind selection device (41), a second wind selection device (42), a wind network pipe (43) and a fan (44), the fan (44) is connected to the first wind selection device (41) and the second wind selection device (42) respectively through the wind network pipe (43), the first wind selection device (41) has a first material inlet (411), a first material outlet and a first material distribution port (413), the first material inlet (411) is opened on the upper side of the first wind selection device (41), the first material distribution port (413) is opened on the peripheral side of the first wind selection device (41), and is connected to the second collection box (202) through the wind network pipe (43), The first discharge port is opened at the bottom side of the first air separation device (41) and is connected to the upper side of the baffle (22) through the first discharge cylinder (412); the second air separation device (42) has a second inlet (421), a second discharge port and a second material distribution port (423); the second inlet (421) is opened at the upper side of the second air separation device (42) and is connected to the end of the second feeding channel; the second material distribution port (423) is opened at the peripheral side of the second air separation device (42) and is connected to the third collecting box (203) through the wind network pipe (43); the second discharge port is opened at the bottom side of the second air separation device (42) and is connected to the fourth collecting box (204) through the second discharge cylinder (422).

10. The grain separation device (1000) according to claim 9, characterized in that: The wind network pipeline (43) comprises a first pipeline (431) connecting the fan (44) and the first air selection device (41), and a second pipeline (432) connecting the fan (44) and the second air selection device (42), and flow rate valves (45) are respectively provided on the first pipeline (431) and the second pipeline (432).

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