A chaff separator

Abstract

The application discloses a high-efficiency rice and husk separating machine and relates to the technical field of rice and husk separation. Nowadays, a large amount of accumulation occurs when rice and husk are separated, and the efficiency of screening rice and husk by vibration is relatively low. This is because the base number of rice and husk in the relative space is large, and the internal activity space is small, so the screening and separating effect is relatively low. The application adopts the eccentric disc rotation mode to drive the movement of rice and husk, and simultaneously utilizes the cooperative action of the reset spring, the tray, the separating bin and other components to complete the screening and separating of rice and husk. In addition, in the process of conveying and separating rice and husk, the main shaft rod, the stirring paddle, the auger rod and other designs are adopted to realize the conveying and separating of rice and husk, thereby avoiding the accumulation and aggregation of rice and husk. Finally, the air rice is separated by the air blowing assembly, the problem that the air rice is light in weight and difficult to separate is solved, and the efficiency and precision of the whole screening and separating system are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of paddy and husked rice separation, in particular to a paddy and husked rice separator. BACKGROUND

[0002] Paddy and husked rice separation is a process of separating husked rice and paddy in a paddy and husked rice mixture. Paddy and husked rice separation is an important link in the grain processing process, which directly affects the efficiency of subsequent processing and the quality of the final product.

[0003] To this end, the patent document with publication number CN111069047A discloses a paddy and husked rice separator, which comprises a rack; a first screening mechanism comprising a first screening cylinder and a screening cylinder driving mechanism; the first screening cylinder comprises a hollow cylinder body, the peripheral wall of the hollow cylinder body is uniformly provided with a plurality of first screen holes, and the first screening cylinder is inclined from the inlet end to the outlet end; the lower side of the first screening cylinder is provided with a primary screening grain outlet, and the grains passing through the first screen holes are discharged from the first screening mechanism through the primary screening grain outlet; a second screening mechanism, the screening mechanism comprising a fan and a screening box, the screening box having a hollow box body and an inlet opening on one side of the box body, a first outlet at the lower end of the box body and a second outlet at the upper end of the box body, the inlet of the box body being provided with an opening below, and the hollow of the box body forming a gas passage; the second outlet is in communication with the fan; the screened paddy and husked rice enters the next stage of equipment through the first outlet; and a husked rice discharging mechanism is located at the outlet end of the first screening cylinder and sends the husked rice and impurities screened out of the first screening cylinder.

[0004] To this end, the patent document with publication number CN206882177U discloses a feeding device of a double-body gravity paddy and husked rice separator, which comprises a material cylinder, two symmetrical distribution pipes are connected to the bottom of the material cylinder, a guide seat is fixed to the inner bottom of the material cylinder, a feeding port is formed on one side of the top of the material cylinder, a conveying belt is arranged above the feeding port, a motor is installed at the top middle of the material cylinder, a spiral feeding roller is rotatably connected in the distribution pipe, and a transmission groove is formed in the inner middle of the guide seat. The utility model discloses a conveying belt continuously feeds grains into the material cylinder, meanwhile, the motor drives the second reversing gear to rotate through the rotating shaft, the second reversing gear drives the first reversing gears on both sides to rotate through meshing, the first reversing gears drive the spiral feeding roller to rotate, the material is brought into the distribution pipe through the spiral feeding roller, and then into the separator, the spiral feeding roller can avoid material blockage and accurately control the feeding speed of the material.

[0005] Nowadays, when paddy and husked rice are separated, vibration is used to accelerate the screening efficiency of paddy and husked rice. However, during the screening process, a large amount of paddy and husked rice will accumulate in the hopper, and the screening efficiency of paddy and husked rice by vibration is relatively low. This is because the base number of paddy and husked rice in the relative space is large, and the internal activity space is small, so the screening and separation effect is relatively low.

[0006] In view of the above problems, a kind of husked rice separator is provided. SUMMARY

[0007] The husked rice separator of the present application solves the problem of low separation efficiency in the background art.

[0008] To achieve the above object, the present application provides the following technical solution: a husked rice separator, comprising a fixed base, a vibration bin is installed on the upper surface of the fixed base, a uniform shaking assembly is arranged in the vibration bin, the uniform shaking assembly comprises a second motor, an eccentric disc is connected to the output end of the second motor, a push plate is embedded in the vibration bin, a return spring is connected between the push plate and the vibration bin, one side of the push plate extends from the inside of the vibration bin to the outside of the vibration bin, a tray is installed on the upper surface of the push plate outside the vibration bin, a separation bin is installed on the top surface of the tray, a mounting rack is installed on the top end of the separation bin, and a first motor is installed on the mounting rack.

[0009] A separation assembly is embedded in the separation bin, the separation assembly comprises a shaking-off bin, the separation bin is embedded with a shaking-off bin, a partition plate is sleeved on the outer surface of the shaking-off bin, the partition plate separates the inside of the separation bin into two spaces, an arc-shaped support is connected to the top surface of the partition plate, a leakage groove is formed in the arc-shaped support, a fixed table is installed on the outer side edge of the arc-shaped support, a driving gear is connected to the output end of the fixed table, a push piece is connected to the bottom end of the driving gear, a separation cylinder is embedded at the center position of the arc-shaped support, a husked rice pushing assembly is connected to the output end of the first motor, the husked rice pushing assembly comprises a main shaft, the output end of the first motor is fixedly connected to the main shaft, a stirring paddle is sleeved on the outer surface of the main shaft, an auger rod is connected to the outer surface of the main shaft, an embedded cylinder is embedded in the inside of the separation cylinder, the auger rod is embedded in the inside of the embedded cylinder, a feed pipe is installed at the bottom end of the embedded cylinder, and the husked rice is conveyed from the bottom end of the embedded cylinder to the inside of the embedded cylinder.

[0010] Preferably, the height of the arc-shaped support is high in the middle and low in the periphery, the fixed table, the driving gear and the push piece are uniformly and equidistantly distributed on the arc-shaped support, and a partition strip is arranged between the fixed table, the driving gear and the push piece to separate them.

[0011] Preferably, the leakage groove is arranged on the left and right sides of the partition strip, and the push piece is arranged in an arc shape and closely fits the inner wall of the arc-shaped support.

[0012] Preferably, a separation hole is arranged on the outer surface of the separation cylinder, and the height of the embedded cylinder embedded in the separation cylinder is lower than that of the separation cylinder.

[0013] Preferably, the inner wall of the inner embedding cylinder is provided with a spiral guide rail, and the inner embedding cylinder is connected to the inner wall of the separation cylinder through the spiral guide rail.

[0014] Preferably, the top end of the separation cylinder is wrapped with a blast assembly, and the blast assembly comprises a blast bin, and the inside of the blast bin is provided with a wrapping sleeve wrapped on the outer surface of the separation cylinder.

[0015] Preferably, the two sides of the wrapping sleeve are provided with air suction ports corresponding to the separation holes on the separation cylinder.

[0016] Preferably, the inside of the blast bin is further embedded with a guide plate, one side of the blast bin is embedded with a blower, the other side of the blast bin is embedded with a suction fan, and a material blowing port is formed on the side of the blast bin close to the suction fan.

[0017] Preferably, the outer wall of the wrapping sleeve and the inner wall of the guide plate are arc-shaped, air is blown out from the blower, passes through the channel between the wrapping sleeve and the guide plate, and is finally discharged through the material blowing port.

[0018] Preferably, the small valleys inside the separation cylinder are guided out through the separation holes on the separation cylinder by negative pressure, pass through the air suction ports, and are finally discharged through the material blowing port.

[0019] Compared with the prior art, the present application has the following advantages:

[0020] The grain and chaff separator provided by the present application realizes the screening and separation of grain and chaff through the separation cylinder, the inner embedding cylinder and the spiral guide rail. The grain and chaff are moved by vibration acceleration, push plate driving, eccentric disc rotation and other modes, and the screening and separation of the grain and chaff are completed by the cooperative action of the return spring, the tray, the separation bin and other components. In addition, the grain and chaff are conveyed and separated through the main shaft rod, the stirring paddle and the auger rod, so that the accumulation and aggregation of the grain and chaff are avoided. Finally, the air valleys are separated by the blast assembly, the problem of light weight and difficult separation of the air valleys is solved, and the efficiency and precision of the entire screening and separation system are improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0022] Figure 2 It is a schematic diagram of the structure of the rack and the first motor of the present application;

[0023] Figure 3 It is a schematic diagram of the structure of the tray and the second motor of the present application;

[0024] Figure 4 It is a schematic diagram of the structure of the blast assembly and the separation bin of the present application;

[0025] Figure 5 The cross-sectional structure diagram of the separating bin of the present application;

[0026] Figure 6 The structure diagram of the separating cylinder and the pusher of the present application;

[0027] Figure 7 The structure diagram of the fixed base and the driving gear of the present application;

[0028] Figure 8 The cross-sectional structure diagram of the separating cylinder of the present application;

[0029] Figure 9 The structure diagram of the embedded cylinder and the spiral guide rail of the present application;

[0030] Figure 10 The cross-sectional structure diagram of the air blowing assembly of the present application.

[0031] In the figure: 11, fixed base; 12, vibrating bin; 13, separating bin; 14, mounting frame; 15, first motor; 2, shaking assembly; 21, tray; 22, second motor; 23, eccentric disc; 24, push plate; 25, return spring; 3, separating assembly; 31, shaking bin; 32, partition plate; 33, arc-shaped support; 34, transmission gear ring; 35, leakage groove; 36, fixed base; 37, driving gear; 38, pusher; 39, separating cylinder; 4, grain pushing assembly; 41, main shaft; 42, stirring paddle; 43, embedded cylinder; 44, spiral guide rail; 45, auger rod; 5, air blowing assembly; 51, air blowing bin; 52, air guide plate; 53, air blower; 54, wrapping sleeve; 55, air suction port; 56, air suction fan; 57, material blowing port. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0033] The present application will be described in detail with reference to the drawings in order to further understand the present application.

[0034] In combination with Figures 1-10The present invention provides a rice and husk separator, comprising a fixed base 11, a vibrating chamber 12 mounted on the upper surface of the fixed base 11, a shaking assembly 2 disposed inside the vibrating chamber 12, the shaking assembly 2 including a second motor 22, the output end of the second motor 22 being connected to an eccentric disk 23, a push plate 24 embedded inside the vibrating chamber 12, a return spring 25 connecting the push plate 24 and the vibrating chamber 12, one side of the push plate 24 extending out from the inside of the vibrating chamber 12 to the outside of the vibrating chamber 12, a tray 21 mounted on the upper surface of the push plate 24 located outside the vibrating chamber 12, a separation chamber 13 mounted on the top surface of the tray 21, an installation frame 14 mounted on the top of the separation chamber 13, and a first motor 15 mounted on the installation frame 14;

[0035] During the screening and separation process of the paddy rice, the movement of the paddy rice is accelerated by vibration. In the operation, the second motor 22 starts working first. When the second motor 22 starts working, it drives the eccentric disk 23 to rotate. When the eccentric disk 23 rotates, it pushes the push plates 24 on the left and right sides in turn. After pushing the push plates 24, the tray 21 moves to the outward side. Then, the return spring 25 resets the tray 21. During the reset, it pulls inward side, thereby realizing the left and right movement of the tray 21. When the tray 21 moves, it causes the separation chamber 13 to shake, thus realizing the screening and separation of the paddy rice.

[0036] The output end of the first motor 15 is connected to the coarse grain propulsion assembly 4. The coarse grain propulsion assembly 4 includes a main shaft 41. The output end of the first motor 15 and the main shaft 41 are fixedly connected. A stirring paddle 42 is sleeved on the outer surface of the main shaft 41. An auger rod 45 is connected to the outer surface of the main shaft 41. An inner cylinder 43 is embedded inside the separator 39. The auger rod 45 is embedded inside the inner cylinder 43. A spiral guide rail 44 is provided on the outer wall of the inner cylinder 43. The inner cylinder 43 is connected to the inner wall of the separator 39 through the spiral guide rail 44. A feed pipe is installed at the bottom end of the inner cylinder 43. The coarse grain is transported from the bottom end of the inner cylinder 43 to the inside of the inner cylinder 43.

[0037] To further improve the screening effect, the paddy rice will be conveyed through the inner cylinder 43. The conveying process is as follows:

[0038] First, the first motor 15 rotates, and then drives the main shaft 41 to rotate. When the main shaft 41 rotates, the auger 45 is driven to rotate. When the auger 45 rotates, the rice and wheat at the bottom end of the inner embedded cylinder 43 is pushed upward by the auger 45, and is moved upward until it is conveyed to the top end of the inner embedded cylinder 43. At this time, the rice and wheat falls from the auger 45 to the spiral guide rail 44, and then slides downward. In this process, some small particles of broken rice and wheat fall through the separation holes of the separation cylinder 39, and then are collected on the arc-shaped support 33. The rice and wheat that cannot pass through the separation holes of the separation cylinder 39 finally falls into the shaking bin 31. The rotation of the main shaft 41 stirs the stirring paddle 42, so as to prevent the rice and wheat from gathering together.

[0039] In addition, when the material is fed, the rotation of the auger 45 causes the rice and wheat to overflow, and then the overflowed rice and wheat falls from the auger 45 to the spiral guide rail 44, and then is guided downward until it is discharged. In this process, the accumulation of the rice and wheat can be avoided. Since the spiral guide rail 44 is spiral-shaped, the rice and wheat can better adhere to the inner wall of the separation cylinder 39 when it slides and falls along the spiral guide rail 44 under the action of the centrifugal force. The contact opportunity between the rice and wheat and the inner wall of the separation cylinder 39 is more, so that the broken rice and wheat can be discharged from the separation holes of the separation cylinder 39.

[0040] After the separation of the broken rice and wheat, the broken rice and wheat finally falls onto the arc-shaped support 33. The arc-shaped support 33 can further screen the broken rice and wheat. The specific operation is as follows:

[0041] The separation assembly 3 is embedded in the separation bin 13. The separation assembly 3 includes the shaking bin 31. The separation bin 13 is embedded with the shaking bin 31. The outer surface of the shaking bin 31 is sleeved with the partition plate 32. The partition plate 32 separates the inside of the separation bin 13 into two spaces. The top surface of the partition plate 32 is connected with the arc-shaped support 33. The arc-shaped support 33 is provided with the leakage groove 35. The leakage groove 35 is arranged on the left and right sides of the partition strip. The tab 38 is arranged in an arc shape and closely adheres to the inner wall of the arc-shaped support 33. The outer side edge of the arc-shaped support 33 is provided with the fixed table 36. The output end of the fixed table 36 is connected with the driving gear 37. The bottom end of the driving gear 37 is connected with the tab 38. The height of the arc-shaped support 33 is high in the middle and low in the middle. The fixed table 36, the driving gear 37 and the tab 38 are evenly and equidistantly distributed on the arc-shaped support 33. The fixed table 36, the driving gear 37 and the tab 38 are separated by the partition strip. The separation cylinder 39 is embedded in the center position of the arc-shaped support 33. The outer surface of the separation cylinder 39 is provided with the separation hole. The inner embedded cylinder 43 embedded in the separation cylinder 39 has a height lower than that of the separation cylinder 39.

[0042] When the broken rice falls on the arc-shaped support 33, a further screening can be carried out through the leakage groove 35 on the arc-shaped support 33, during which the fixed table 36 drives the driving gear 37 to rotate, wherein the arc-shaped support 33 is provided with eight fixed tables 36, only one of which is internally provided with a reciprocating motor. In order to realize synchronous operation, the driving gear 37 is driven to rotate by the reciprocating motor in the fixed table 36, and the rotation of the driving gear 37 drives the rotation of the transmission gear ring 34. Since the transmission gear ring 34 and each group of driving gears 37 are engaged, the rotation of the transmission gear ring 34 can drive the rotation of the eight groups of driving gears 37, which can simultaneously drive the deflection of the paddle 38. The deflection pushes the broken rice, which is separated through the leakage groove 35. Since the smaller the particles of the broken rice are, the greater the density of the accumulation is when vibrating, the activity range brought by the vibration is small at this time. In order to improve the activity space of the broken rice and improve the screening efficiency, the paddle 38 is used to stir, thereby increasing the screening efficiency.

[0043] In the screening and separation of the rice and chaff, some empty valleys are also included, which are light in weight and high in degree of fragmentation and are not easy to separate. In order to solve this problem, the blast assembly 5 is arranged to separate the empty valleys, and the specific operation is as follows:

[0044] The top end of the separation cylinder 39 is wrapped with the blast assembly 5, which includes a blast bin 51. The blast bin 51 is internally provided with a wrapping sleeve 54, which wraps the outer surface of the separation cylinder 39. The two sides of the wrapping sleeve 54 are provided with suction ports 55, which correspond to the separation holes on the separation cylinder 39. The blast bin 51 is also embedded with a wind guide plate 52 inside. The blast bin 51 is embedded with a blower 53 on one side, and a suction fan 56 on the other side. The blast bin 51 near the suction fan 56 is provided with a blowing port 57. The outer wall of the wrapping sleeve 54 and the inner wall of the wind guide plate 52 are both arc-shaped. Air is blown out from the blower 53, passes through the channel between the wrapping sleeve 54 and the wind guide plate 52, and is finally discharged through the blowing port 57. The small empty valleys inside the separation cylinder 39 are guided out through the separation holes on the separation cylinder 39 by negative pressure, and finally discharged through the blowing port 57.

[0045] Since the blower 53 blows high-speed air into the inside of the blast bin 51, a negative pressure is formed near the suction port 55. Because the empty valleys are light in weight, the empty valleys are sucked into the inside of the blast bin 51, and finally discharged through the blowing port 57.

[0046] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the scope of the present application is not limited to these specific embodiments.

[0047] While the embodiments of the application have been shown and described herein, it is to be understood that the scope of the application, jointly pointed out in the appended claims, is not limited to the details of the embodiments shown, and that various changes, modifications, substitutions and alterations can be made thereto without departing from the spirit and scope of the application as defined in the following claims and their equivalents.

Claims

1. A rice-straw separator, comprising a fixed base (11), characterized in that: A vibration chamber (12) is installed on the upper surface of the fixed base (11). A shaking assembly (2) is provided inside the vibration chamber (12). The shaking assembly (2) includes a second motor (22). An eccentric disk (23) is connected to the output end of the second motor (22). A push plate (24) is embedded inside the vibration chamber (12). A return spring (25) is connected between the push plate (24) and the vibration chamber (12). One side of the push plate (24) extends out from the inside of the vibration chamber (12) and extends to the outside of the vibration chamber (12). A tray (21) is installed on the upper surface of the push plate (24) located outside the vibration chamber (12). A separation chamber (13) is installed on the top surface of the tray (21). An installation frame (14) is installed on the top of the separation chamber (13). A first motor (15) is installed on the installation frame (14). The separation chamber (13) is internally embedded with a separation component (3), which includes a shaking chamber (31). The shaking chamber (31) is internally embedded with a separation component (31). A partition plate (32) is fitted onto the outer surface of the shaking chamber (31). The partition plate (32) divides the interior of the separation chamber (13) into upper and lower spaces. An arc-shaped support (33) is connected to the top surface of the partition plate (32). A slot (35) is provided on the arc-shaped support (33). A fixed platform (36) is installed on the outer edge of the arc-shaped support (33). A drive gear (37) is connected to the output end of the fixed platform (36). A paddle (38) is connected to the bottom end of the drive gear (37). A separation cylinder (39) is embedded in the center of the arc-shaped support (33). (39) has a separation hole on its outer surface. The inner cylinder (43) embedded inside the separation cylinder (39) is lower than the separation cylinder (39). The output end of the first motor (15) is connected to the grain propulsion assembly (4). The grain propulsion assembly (4) includes a main shaft (41). The output end of the first motor (15) and the main shaft (41) are fixedly connected. The outer surface of the main shaft (41) is fitted with a stirring paddle (42). The outer surface of the main shaft (41) is connected with a screw rod (45). The inner cylinder (43) is embedded inside the separation cylinder (39). The screw rod (45) is embedded inside the inner cylinder (43). The bottom end of the inner cylinder (43) is equipped with a feed pipe. The grain is transported from the bottom end of the inner cylinder (43) to the inside of the inner cylinder (43). A spiral guide rail (44) is provided on the outer wall of the inner tube (43), and the inner tube (43) is connected to the inner wall of the separation tube (39) through the spiral guide rail (44); As the rice grains slide down along the spiral guide rail (44), they adhere to the inner wall of the separation cylinder (39) under the action of centrifugal force. The rice grains have more opportunities to come into contact with the inner wall of the separation cylinder (39), and the broken rice grains are discharged from the separation holes on the separation cylinder (39). The top of the separation cylinder (39) is covered with a blower assembly (5), which includes a blower chamber (51). The blower chamber (51) is provided with a wrapping sleeve (54) inside, which wraps around the outer surface of the separation cylinder (39). The wrapping sleeve (54) has air inlets (55) on both sides, and the air inlets (55) correspond to the separation holes on the separation cylinder (39).

2. The rice-straw separator according to claim 1, characterized in that: The arc-shaped support (33) is higher around the perimeter and lower in the middle. The fixed platform (36), the drive gear (37) and the paddle (38) are evenly and equidistantly distributed on the arc-shaped support (33). The fixed platform (36), the drive gear (37) and the paddle (38) are separated by partition strips between each pair.

3. A rice-straw separator according to claim 2, characterized in that: The groove (35) is set on the left and right sides of the separator, and the lever (38) is set in an arc shape and fits tightly against the inner wall of the arc support (33).

4. A rice-straw separator according to claim 1, characterized in that: The blower chamber (51) is also equipped with an air guide plate (52), a blower (53) is embedded on one side of the blower chamber (51), a suction fan (56) is embedded on the other side of the blower chamber (51), and a blowing port (57) is provided on the blower chamber (51) near the suction fan (56).

5. A rice-straw separator according to claim 4, characterized in that: The outer wall of the packaging sleeve (54) and the inner wall of the air guide plate (52) are both arc-shaped. Air is blown out from the blower (53), passes through the channel between the packaging sleeve (54) and the air guide plate (52), and is finally discharged through the blowing port (57).

6. A rice-straw separator according to claim 5, characterized in that: The tiny cavities inside the separator (39) are drawn out from the separator hole on the separator (39) through the negative pressure until they pass through the air inlet (55) and are finally discharged through the blower (57).

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