Rape seed gravity separation and impurity removal device

Abstract

The invention relates to the technical field of agricultural separation equipment, in particular to a rape seed gravity separation and impurity removal device which comprises a machine body and a screening and impurity removal mechanism. The screening and impurity removing mechanism comprises a vibrating screen assembly and a negative pressure pumping and discharging assembly. The vibrating screen assembly comprises a supporting ring, a vibrating screen frame, an elastic connecting piece and an impurity removing driving piece. The supporting ring and the machine body are coaxially fixed. The elastic connecting piece comprises a guide sliding rod and a compression spring. A guide sliding groove is formed in the top wall of the supporting ring, the compression spring is arranged on the guide sliding rod in a sleeving mode, the impurity removal driving piece comprises a driving motor, a rotating shaft, an auxiliary supporting ring, a plurality of sweeping brush plates and a plurality of auxiliary supporting rods, and the driving motor is installed on the machine body; one end of the auxiliary supporting rod is fixedly connected with the rotating shaft, and the other end of the auxiliary supporting rod slides along the corrugated ring groove; and through the screening and impurity removing mechanism, vibration screening is conveniently conducted on the to-be-screened rape seeds, meanwhile, the inner side wall of the machine body is conveniently cleaned, and the screening quality of the rape seeds is improved.

Description

Technical Field

[0001] The present application relates to the technical field of agricultural sorting equipment, and in particular to a rapeseed seed gravity sorting and impurity removal device. Background Art

[0002] In order to remove impurities in rapeseed and improve its quality for subsequent processing and storage, rapeseed needs to be sorted. At present, rapeseed sorting includes color sorting, wind sorting, water sorting, gravity sorting and vibration sorting. Gravity sorting is a process of sorting materials of different densities or particle sizes based on the density or particle size differences between different particles in the material. The particles are subjected to the effects of gravity, medium dynamics and mechanical forces in the moving medium, causing loose stratification and migration separation of the particle groups, thereby obtaining materials of different densities or particle sizes.

[0003] The rapeseed seed specific gravity machine in the prior art includes two vertical plates, a feed hopper is fixedly connected to the inner sides of the two vertical plates, a square frame is arranged at the bottom end of the feed hopper, a mounting plate is arranged at the inner sides of the two vertical plates, a servo motor is fixedly installed at the bottom of the mounting plate, a transmission shaft is fixedly connected to the output end of the servo motor, a disc is fixedly connected to one end of the transmission shaft, a connecting plate is arranged on the disc, the disc is transmission-connected to the square frame through the connecting plate, a mounting groove is opened on the upper surface of the square frame, a plurality of sieve plates with different aperture sizes are arranged inside the mounting groove, a blanking plate is arranged at the bottom end of the square frame, and a plurality of guide plates are arranged on the upper surface of the blanking plate.

[0004] When the above-mentioned rapeseed seed specific gravity machine is performing specific gravity screening on the rapeseed seeds, the rapeseed seeds pass through the reciprocating motion of the screen plate, but the debris in the rapeseed seeds is easy to adhere to the side walls of the vertical plate, causing the debris adhered to the vertical plate to be easily mixed in the screened rapeseed seeds during the subsequent rapeseed seed screening process, affecting the screening quality of the rapeseed seeds. Summary of the invention

[0005] In order to improve the screening quality of rapeseed seeds, the present application provides a rapeseed seed gravity sorting and impurity removal device.

[0006] The present application provides a rapeseed seed gravity sorting and impurity removal device, which adopts the following technical solution: A rapeseed seed gravity sorting and impurity removal device, comprising a body and a screening and impurity removal mechanism; The screening and impurity removal mechanism includes a vibrating screening component and a negative pressure pumping component, and the vibrating screening component includes a supporting ring, a vibrating screen frame, an elastic connecting member and an impurity removal driving member; The support ring is located in the inner cavity of the machine body, and the support ring is coaxially fixed with the machine body, and the support ring is located below the vibration screen frame; The plurality of elastic connectors are evenly distributed along the circumferential direction of the mounting frame, and the elastic connectors include guide slide bars and compression springs; A guide slot for sliding the end of the guide slide rod is provided on the top wall of the support ring, and the guide slot is arranged along the circumferential direction of the support ring; The guide slide bar is disposed at one end away from the guide slide groove and passes through the installation frame, and the guide slide bar is slidably connected to the installation frame; The compression spring is sleeved on the guide slide bar, and one end of the compression spring abuts against the guide slide bar, and the other end abuts against the mounting frame; The impurity removal drive member includes a drive motor, a rotating shaft, an auxiliary support ring, a plurality of cleaning brush plates and a plurality of auxiliary support rods; The driving motor is mounted on the machine body; The output shaft of the driving motor is coaxially fixed with the rotating shaft, and the rotating shaft is retractable, and the rotating shaft is coaxially fixed with the vibrating screen frame; A plurality of cleaning brush plates are distributed along the axial direction of the rotating shaft, and the cleaning brush plates are fixedly connected to the rotating shaft, and the cleaning brush plates are in contact with the inner wall of the machine body; The auxiliary support ring is located below the vibrating screen frame and is coaxially fixed to the inner wall of the body. A wave-shaped ring groove is provided on the auxiliary support ring, and the wave-shaped ring groove is coaxially arranged with the auxiliary support ring. One end of the auxiliary support rod is fixedly connected to the end of the rotating shaft away from the driving motor, and the other end can slide along the wave-shaped ring groove; The negative pressure exhaust assembly is used to exhaust light debris in the body cavity.

[0007] By adopting the above technical scheme, when the rapeseed is screened, first, the rapeseed to be screened is injected into the inner cavity of the machine body along the feeding end of the machine body, and then the driving motor is adjusted, and the output shaft of the driving motor drives the rotating shaft to rotate, and the rotating shaft drives the auxiliary support rod to move along the corrugated ring groove of the auxiliary support ring. Due to the effect of the corrugated ring groove, the auxiliary support rod acts on the rotating shaft, so that the rotating shaft is extended and retracted, and the rotating shaft drives the vibration screen frame to rotate, and the vibration screen frame vibrates repeatedly along the axial direction of the rotating shaft, and the vibration screen frame drives the guide slide bar to slide along the guide slide groove to realize the vibration screening of the rapeseed to be screened. At the same time, the rotating shaft drives the cleaning brush plate to move synchronously to realize the cleaning of the inner wall of the machine body, and then the negative pressure extraction component is adjusted to extract the light debris in the rapeseed to be screened out of the inner cavity of the machine body; the designed rapeseed gravity sorting and impurity removal device is convenient for vibrating and screening the rapeseed to be screened through the screening and impurity removal mechanism, and at the same time, it is convenient to clean the inner wall of the machine body, avoid impurities adhering to the inner wall of the machine body, and improve the screening quality of rapeseed.

[0008] Optionally, the vibration screen frame includes a plurality of vibration screen plates and a mounting frame, the mounting frame is coaxially mounted in the inner cavity of the machine body, and the mounting frame is slidably connected to the machine body; A plurality of the vibration screen plates are distributed along the axial direction of the mounting frame, and the vibration screen plates are fixedly connected to the mounting frame; The vibrating screen plate is provided with sieve holes, and the sieve holes on the upper vibrating screen plate are larger than the sieve holes on the lower vibrating screen plate.

[0009] By adopting the above technical scheme, the separately arranged vibrating screen frame can facilitate the step-by-step screening of the rapeseed seeds to be screened through multiple vibrating screen plates, so as to achieve multi-stage separation of the rapeseed seeds to be screened; and the installation frame can facilitate the connection of multiple vibrating screen plates to achieve synchronous movement of multiple vibrating screen plates.

[0010] Optionally, the guide slide bar includes an integrally arranged guide slide portion, an annular limiting portion and a vertical portion; The guide slide portion, the annular limiting portion and the vertical portion are coaxially arranged, the guide slide portion is located at the end of the vertical portion, and the guide slide portion is slidably connected with the guide slide groove; The annular limiting portion is located above the supporting ring, and one end of the compression spring is connected to the annular limiting portion, and the other end is connected to the mounting frame; The vertical portion passes through the installation frame, and the vertical portion is slidably connected to the installation frame.

[0011] By adopting the above technical solution, the designed guide slide bar is convenient for cooperating with the vibrating screen plate to perform step-by-step vibration screening of the rapeseed seeds to be screened. At the same time, it is convenient to elastically support the vibrating screen frame and improve the supporting strength of the vibrating screen frame during the vibration process.

[0012] Optionally, the negative pressure exhaust assembly includes a negative pressure pump, a negative pressure air inlet pipe, a negative pressure air exhaust pipe and a collection box; the negative pressure pump is installed on the machine body, the air inlet end of the negative pressure pump is connected to the negative pressure air inlet pipe, and the negative pressure air inlet pipe is connected to the inner cavity of the machine body at one end away from the negative pressure pump; one end of the negative pressure air inlet pipe is connected to the exhaust end of the negative pressure pump, and the other end is connected to the inner cavity of the collection box.

[0013] By adopting the above technical scheme, the negative pressure pump is adjusted, and the negative pressure pump applies negative pressure force to the inner cavity of the machine body through the negative pressure air inlet pipe, so that the light debris in the rapeseed to be screened is drawn into the negative pressure exhaust pipe, and then falls into the collection box along the negative pressure exhaust pipe; the designed negative pressure extraction and exhaust component is convenient for drawing negative pressure into the inner cavity of the machine body, and then it is convenient to extract and discharge the light debris in the rapeseed to be screened in the inner cavity of the machine body, so as to realize the separation of impurities in the rapeseed to be screened.

[0014] Optionally, the screening and impurity removal mechanism further includes an air selection component for blowing and floating light debris of rapeseed seeds in the inner cavity of the machine body; the air selection component includes a fan, an exhaust pipe and an air guide cover; The fan is mounted on the machine body; The air outlet end of the fan is fixedly connected to the exhaust pipe; One end of the exhaust pipe extending into the inner cavity of the machine body is fixedly connected to the air guide cover, and the air guide cover is located directly below the vibration screen frame.

[0015] By adopting the above technical solution, the fan is adjusted, and the airflow generated by the fan moves along the exhaust duct to the inner cavity of the air guide hood until the airflow flows into the inner cavity of the machine body, exerting a force on the rapeseed seeds to be screened in the inner cavity of the machine body, so that the light debris in the rapeseed seeds to be screened floats; the designed air separation component is convenient for exerting a force on the light debris in the rapeseed seeds to be screened, so that the light debris in the rapeseed seeds to be screened floats, and cooperates with the negative pressure extraction component to extract the light debris in the rapeseed seeds in the inner cavity of the machine body, thereby realizing the separation of light impurities in the rapeseed seeds to be screened.

[0016] Optionally, it also includes multiple discharge mechanisms for discharging the screened rapeseed seeds, and the multiple discharge mechanisms are distributed along the axial direction of the machine body, and the discharge mechanisms are distributed corresponding to the vibrating screen plate; the discharge mechanism includes a discharge hopper, a discharge pipe and a valve, the discharge hopper is installed on the machine body, and the discharge hopper is opposite to the vibrating screen plate, the discharge end of the discharge hopper is connected to the discharge pipe, and the valve is installed on the discharge pipe.

[0017] By adopting the above technical solution, the designed discharge mechanism is convenient for discharging the rapeseed seeds after step-by-step separation, thereby realizing the centralized collection of the rapeseed seeds in the body cavity.

[0018] Optionally, a spiral feeding assembly is connected to the discharge pipe facing the uppermost vibration screen plate, and the spiral feeding assembly includes a feeding pipe, a rotating rod, a spiral blade and a rotating motor; The feeding pipe is installed on the machine body, and the feeding pipe is rotatably connected to the rotating rod; The spiral blade is coaxially fixed on the rotating rod, and the spiral blade is located in the inner cavity of the feeding tube; The extension section of the rotating rod extending out of the feeding pipe is coaxially fixed to the output shaft of the rotating motor; The feeding end of the feeding pipe is connected to the discharging pipe, and the discharging end of the feeding pipe is communicated with the inner cavity of the machine body.

[0019] By adopting the above technical solution, the rotating motor is adjusted, and the output shaft of the rotating motor drives the rotating rod to rotate, and the rotating rod drives the spiral blades to rotate, and the spiral blades drive the rapeseed seeds on the uppermost vibrating screen plate to move along the spiral blades to the discharge end of the feeding pipe, and re-enter the inner cavity of the machine along the feeding pipe for re-screening; the designed spiral feeding assembly facilitates multiple separations of the rapeseed seeds on the uppermost vibrating screen plate, thereby improving the screening quality of the rapeseed seeds to be screened.

[0020] Optionally, a material stopper ring is coaxially fixedly connected to the bottom wall of the vibration screen plate, the material stopper ring is located in the inner cavity of the machine body, and the material stopper ring is slidably connected to the machine body.

[0021] By adopting the above technical solution, the designed retaining ring is easy to be slidably connected to the machine body. At the same time, it prevents the rapeseed seeds after screening between the two adjacent vibrating screen plates above from falling between the two adjacent vibrating screen plates below along the connection position between the feed end of the feeding pipe and the discharge pipe, thereby ensuring the screening quality of the rapeseed seeds.

[0022] Optionally, the rotating shaft includes a coaxially arranged sleeve portion and a connecting portion, the sleeve portion and the connecting portion are slidingly connected, the sleeve portion is coaxially fixed to the output shaft of the rotating motor, and the sleeve portion is located above the vibrating screen plate, and the connecting portion is fixedly connected to the vibrating screen plate.

[0023] By adopting the above technical solution, the rotating shaft is arranged in sections, which facilitates the relative sliding of the connecting part and the sleeve part, thereby realizing the extension and retraction of the rotating shaft and ensuring the vibration screening of rapeseed seeds.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. The designed rapeseed seed gravity sorting and impurity removal device facilitates the vibration screening of the rapeseed to be screened through the screening and impurity removal mechanism. At the same time, it is convenient to clean the vibration screen frame and the inner wall of the machine body, avoiding the debris in the rapeseed from adhering to the inner wall of the machine body, and improving the screening quality of the rapeseed; 2. The designed rapeseed seed gravity sorting and impurity removal device facilitates the extraction of negative pressure into the inner cavity of the machine body through the negative pressure pumping component, thereby facilitating the extraction of light debris in the rapeseed to be screened in the inner cavity of the machine body, thereby realizing the separation of debris in the rapeseed to be screened; through the wind selection component, it is convenient to apply force to the light debris in the rapeseed to be screened, so that the light debris in the rapeseed to be screened floats, and cooperates with the negative pressure pumping component to extract the light debris in the rapeseed in the inner cavity of the machine body, thereby realizing the separation of impurities in the rapeseed to be screened. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of the rapeseed seed gravity sorting and impurity removal device in Example 1 of the present application; Figure 2 is a cross-sectional view of a rapeseed seed gravity sorting and impurity removal device according to Example 1 of the present application; Figure 3 yes Figure 2 A magnified schematic diagram of part A; Figure 4 yes Figure 2 An enlarged schematic diagram of part B; Figure 5 yes Figure 2 Enlarged schematic diagram of part C of FIG.

[0026] Description of reference numerals: 1, machine body; 2, vibrating screen assembly; 21, support ring; 211, guide slide; 22, elastic connector; 221, guide slide bar; 2211, guide slide portion; 2212, vertical portion; 2213, annular limit portion; 222, compression spring; 23, vibrating screen frame; 231, vibrating screen plate; 232, mounting frame; 233, material blocking ring; 234, screen hole; 24, impurity removal drive member; 241, drive motor; 242, rotating shaft; 2421, sleeve portion; 2422, connecting portion; 243, auxiliary support rod; 244, auxiliary support ring; 24 5. Wave-shaped annular groove; 246. Cleaning brush plate; 2461. Horizontal section; 2462. First brush section; 2463. Vertical section; 2464. Second brush section; 3. Negative pressure exhaust assembly; 31. Negative pressure air inlet pipe; 32. Negative pressure pump; 33. Negative pressure exhaust pipe; 34. Collecting box; 4. Air separation assembly; 41. Fan; 42. Exhaust pipe; 43. Air guide hood; 5. Discharge mechanism; 51. Discharge hopper; 52. Discharge pipe; 53. Valve; 54. Spiral feeding assembly; 541. Feeding pipe; 542. Rotating motor; 543. Rotating rod; 544. Spiral blade. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-5 This application is described in further detail.

[0028] The embodiment of the present application discloses a rapeseed seed gravity sorting and impurity removal device.

[0029] Reference Figure 1 and Figure 2 A rapeseed seed gravity sorting and impurity removal device comprises a machine body 1, a screening and impurity removal mechanism and a plurality of discharge mechanisms 5, wherein the screening and impurity removal mechanism and the discharge mechanism 5 are both mounted on the machine body 1, and the plurality of discharge mechanisms 5 are used for discharging the screened rapeseed seeds, and the plurality of discharge mechanisms 5 are distributed along the axial direction of the machine body 1; in the present application, the rapeseed seeds to be screened are injected into the inner cavity of the machine body 1, and then the rapeseed seeds to be screened are screened and impurity removed by the screening and impurity removal mechanism, and at the same time, the inner side wall of the machine body 1 is cleaned, and finally, the screened rapeseed seeds are discharged by the discharge mechanism 5.

[0030] Reference Figure 2 and Figure 3 The screening and impurity removal mechanism includes a vibrating screening component 2, a negative pressure exhaust component 3 and an air selection component 4; the vibrating screening component 2 includes a support ring 21, a vibrating screen frame 23, an elastic connecting member 22 and an impurity removal driving member 24, the support ring 21 is located in the inner cavity of the machine body 1, in this embodiment, the support ring 21 is horizontally arranged, and the support ring 21 is coaxially fixed with the machine body 1, and the support ring 21 is located below the vibrating screen frame 23, so as to stably support the vibrating screen frame 23; the vibrating screen frame 23 includes a plurality of vibrating screen plates 231 and an installation frame 2 32, in the present application, the number of the vibrating screen plates 231 can be three, four, or five, as long as the screening of rapeseed can be achieved. In the present embodiment, the number of the vibrating screen plates 231 is three, and the three vibrating screen plates 231 are distributed along the axial direction of the mounting frame 232. Moreover, the vibrating screen plates 231 are coaxially arranged with the machine body 1, and a spacer cavity is left between two adjacent vibrating screen plates 231. The vibrating screen plates 231 are provided with sieve holes 234, and the sieve holes 234 are used for the rapeseed to pass through, and the sieve holes 234 on the upper vibrating screen plates 231 are provided with a plurality of vibrating screen plates 231. The hole 234 is larger than the sieve hole 234 on the lower vibrating screen plate 231, so as to facilitate the step-by-step screening of rapeseed seeds. At the same time, the vibrating screen plate 231 is fitted with the inner wall of the body 1 to prevent the rapeseed seeds from falling under the vibrating screen plate 231 along the gap between the vibrating screen plate 231 and the inner wall of the body 1, and the vibrating screen plate 231 is slidably connected to the body 1; a blocking ring 233 is fixedly connected to the bottom wall of the vibrating screen plate 231, and the blocking ring 233 extends downward along the axial direction of the body 1, and the blocking ring 233 and the vibrating screen plate 231 are in the same The axis is set, the retaining ring 233 is located in the inner cavity of the body 1, and the retaining ring 233 is slidably connected to the body 1, so as to facilitate the vibration screening of the rapeseed seeds through the vibrating screen plate 231; the mounting frame 232 is coaxially installed in the inner cavity of the body 1, and the mounting frame 232 is slidably connected to the body 1, and the vibrating screen plate 231 is fixedly connected to the mounting frame 232. In this embodiment, the vibrating screen plate 231 is welded to the mounting frame 232, so as to achieve the fixed connection between the vibrating screen plate 231, the retaining ring 233 and the mounting frame 232.

[0031] Reference Figure 2 and Figure 3In the present application, the elastic connecting member 22 is provided with a plurality of elastic connecting members 22, which may be three, four or five, as long as the stable support of the mounting frame 232 is achieved. In the present embodiment, the elastic connecting member 22 is provided with three elastic connecting members 22, and the three elastic connecting members 22 are evenly distributed along the circumferential direction of the mounting frame 232; the elastic connecting member 22 comprises a guide slide bar 221 and a compression spring 222, the guide slide bar 221 comprises a coaxially arranged guide slide portion 2211, an annular limiting portion 2213 and a vertical portion 2212, in the present embodiment, the guide slide portion 2211, the annular limiting portion 2213 and the vertical portion 2212 are integrally connected, the guide slide portion 2211 is located at the lower end portion of the vertical portion 2212, and a guide slide groove 211 for sliding the end portion of the guide slide bar 221 is provided on the top wall of the support ring 21, the guide slide groove 211 is arranged along the circumferential direction of the support ring 21, and the guide slide portion 2211 and the guide slide groove 211 are arranged along the circumferential direction of the support ring 21 The annular limiting portion 2213 is located above the support ring 21, and a certain gap is left between the annular limiting portion 2213 to avoid the annular limiting portion 2213 from contacting the support ring 21, reducing the friction between the guide slide bar 221 and the support ring 21, and facilitating the guide slide bar 221 to slide along the guide slide groove 211; the vertical portion 2212 is away from the end of the guide slide portion 2211 and passes through the lowest vibration screen plate 231, and the axial direction of the vertical portion 2212 is parallel to the axial direction of the body 1, and the vertical portion 2212 is slidingly connected to the vibration screen plate 231 to facilitate the vibration screening of rapeseed seeds; the compression spring 222 is sleeved on the vertical portion 2212, and one end of the compression spring 222 abuts against the annular limiting portion 2213, and the other end abuts against the lowest vibration screen plate 231, and in the present application, the compression spring 222 is in a compressed state under the action of the mounting frame 232.

[0032] Reference Figure 2 and Figure 4The impurity removal drive member 24 includes a drive motor 241, a rotating shaft 242, an auxiliary support ring 244, a plurality of cleaning brush plates 246 and a plurality of auxiliary support rods 243; the drive motor 241 is installed on the machine body 1. In this embodiment, the drive motor 241 is fixed to the top wall of the machine body 1 by bolts, and the output shaft of the drive motor 241 is coaxially arranged with the machine body 1, and the output shaft of the drive motor 241 is coaxially fixed with the rotating shaft 242; the rotating shaft 242 is located in the inner cavity of the machine body 1, and the rotating shaft 242 is retractable. The rotating shaft 242 includes a coaxially arranged sleeve portion 2421 and a connecting portion 2422. In this embodiment, the output shaft of the drive motor 241 and the sleeve portion 2421 are fixed by a coupling. The sleeve portion 2421 is fixedly connected, and the sleeve portion 2421 is located above the vibrating screen plate 231, the sleeve portion 2421 is sleeved on the connecting portion 2422, and the sleeve portion 2421 is slidably connected to the connecting portion 2422; the connecting portion 2422 runs through the three vibrating screen plates 231, and the connecting portion 2422 is coaxially fixed with the vibrating screen plate 231; in the present application, the cleaning brush plates 246 can be three, six, or nine, as long as the cleaning of the inner wall of the machine body 1 is achieved. In the present embodiment, the number of cleaning brush plates 246 is the same as the number of vibrating screen plates 231. Therefore, the cleaning brush plates 246 are set to three, and the three cleaning brush plates 246 are arranged along the axial direction of the rotating shaft 242 The cleaning brush plate 246 is distributed in the direction of rotation, and each cleaning brush plate 246 is located above the vibrating screen plate 231; the cleaning brush plate 246 includes a horizontal section 2461 and a vertical section 2463 that are connected in one piece, one end of the horizontal section 2461 is fixedly connected to the connecting portion 2422, and the horizontal section 2461 is arranged along the radial direction of the vibrating screen plate 231, in addition, a spacing cavity is left between the horizontal section 2461 and the vibrating screen plate 231, the height of the spacing cavity is greater than the maximum length of the vertical portion 2212 extending out of the vibrating screen plate 231, and the horizontal section 2461 is provided with a first brush portion 2462 on one side close to the vibrating screen plate 231, and the first brush portion 2462 is in contact with the surface of the vibrating screen plate 231; the vertical section 24 63 is fixedly connected to the horizontal section 2461 away from the connecting portion 2422, and the vertical section 2463 is provided with a second brush portion 2464 on the side close to the inner wall of the machine body 1, and the first brush portion 2462 is in contact with the inner wall of the machine body 1, so as to facilitate cleaning the inner wall of the machine body 1; the auxiliary support ring 244 is located below the vibrating screen frame 23, and the auxiliary support ring 244 is coaxially fixed to the inner wall of the machine body 1. In this embodiment, the auxiliary support ring 244 is welded to the machine body 1, and a corrugated ring groove 245 is provided on the auxiliary support ring 244. The corrugated ring groove 245 is coaxially arranged with the auxiliary support ring 244. In this embodiment, the corrugated ring groove 245 is arranged in an annular shape, and the bottom wall of the corrugated ring groove 245 is arranged in a wavy shape;In the present application, there may be two, three or four auxiliary support rods 243, as long as the limit support of the end of the rotating shaft 242 away from the driving motor 241 is achieved. In the present embodiment, there are two auxiliary support rods 243, and the auxiliary support rods 243 are symmetrically distributed about the axis of the rotating shaft 242. One end of the auxiliary support rod 243 is fixedly connected to the end of the connecting section away from the driving motor 241, and the other end can slide along the wave-shaped ring groove 245. ;

[0033] Reference Figure 2 and Figure 3 The negative pressure exhaust assembly 3 is used to exhaust light debris in the inner cavity of the body 1; the negative pressure exhaust assembly 3 includes a negative pressure pump 32, a negative pressure air inlet pipe 31, a negative pressure exhaust pipe 33 and a collection box 34; the negative pressure pump 32 is installed on the body 1, the air inlet end of the negative pressure pump 32 is connected to the negative pressure air inlet pipe 31, and the negative pressure air inlet pipe 31 is connected to the inner cavity of the body 1 at one end away from the negative pressure pump 32. In this embodiment, the negative pressure pump 32 and the negative pressure air inlet pipe 31 are connected by a flange Moreover, in the present application, a plurality of intake branch pipes are connected to the negative pressure intake pipe 31, the number of the intake branch pipes is the same as the number of the vibrating screen plates 231, and the intake branch pipes are distributed correspondingly to the vibrating screen plates 231, and the air inlets of the intake branch pipes are respectively facing the interval cavity between two adjacent vibrating screen plates 231, and a regulating valve is installed on each intake branch pipe; one end of the negative pressure exhaust pipe 33 is connected to the exhaust end of the negative pressure pump 32, and the other end is connected to the inner cavity of the collecting box 34.

[0034] Reference Figure 2 The air separation component 4 is used for blowing light debris in the rapeseed in the inner cavity of the body 1; the air separation component 4 includes a fan 41, an exhaust pipe 42 and an air guide cover 43, the fan 41 is installed on the body 1, and the air outlet end of the fan 41 is fixedly connected to the exhaust pipe 42. In this embodiment, the air outlet end of the fan 41 is connected to the exhaust pipe 42 through a flange; one end of the exhaust pipe 42 extends into the inner cavity of the body 1 and is fixedly connected to the air guide cover 43, and the air guide cover 43 is located directly below the lowest vibrating screen plate 231.

[0035] Reference Figure 2 and Figure 5, the discharging mechanism 5 is distributed correspondingly to the vibrating screen plate 231. In the present application, the discharging mechanism 5 is distributed correspondingly to the vibrating screen plate 231. The discharging mechanism 5 includes a discharging hopper 51, a discharging pipe 52 and a valve 53. The discharging hopper 51 is installed on the machine body 1, and the discharging hopper 51 is directly facing the vibrating screen plate 231. The discharge end of the discharging hopper 51 is connected to the discharging pipe 52, and the valve 53 is installed on the discharging pipe 52; and the discharging pipe 52 directly facing the uppermost vibrating screen plate 231 is connected with a spiral feeding assembly 54, and the spiral feeding assembly 54 includes a feeding pipe 541, a rotating rod 543, a spiral blade 544 and a rotating motor 542; the feeding pipe 541 is installed on the machine body 1, and the feeding pipe 541 is connected to the discharging pipe 52 through a flange. The feeding tube 541 is connected with the rotating rod 543; the feeding tube 541 is rotatably connected with the rotating rod 543, and the feeding tube 541 and the rotating rod 543 are coaxially arranged; the spiral blade 544 is coaxially fixed on the rotating rod 543, and the spiral blade 544 is located in the inner cavity of the feeding tube 541; the extending section of the rotating rod 543 extending out of the feeding tube 541 is coaxially fixed with the output shaft of the rotating motor 542, and, in this embodiment, the rotating rod 543 and the rotating motor 542 are coaxially fixed through a coupling; the feeding end of the feeding tube 541 is connected with the discharge tube 52, and the discharge end of the feeding tube 541 is connected with the inner cavity of the body 1; in addition, a discharge port is also provided on the feeding tube 541, and a discharge valve is installed at the discharge port of the feeding tube 541.

[0036] The implementation principle of the rapeseed seed gravity sorting and impurity removal device of the embodiment of the present application is as follows: when the rapeseed seeds are screened, first, the rapeseed seeds to be screened are injected into the inner cavity of the machine body 1 along the feed end of the machine body 1, and the fan 41 is adjusted. The airflow generated by the fan 41 moves along the exhaust pipe 42 to the inner cavity of the air guide cover 43 until the airflow flows into the inner cavity of the machine body 1; then, the drive motor 241 is adjusted, and the output shaft of the drive motor 241 drives the rotating shaft 242 to rotate, and the rotating shaft 242 drives the auxiliary support rod 243 to move along the corrugated ring groove 245 of the auxiliary support ring 244. Due to the action of the corrugated ring groove 245, the auxiliary support rod 243 acts on the rotating shaft 242, causing the rotating shaft 242 to expand and contract, and the rotating shaft 242 drives the vibrating screen plate 231 to rotate. The vibrating screen plate 231 is vibrated repeatedly along the axial direction of the rotating shaft 242, and the vibrating screen plate 231 drives the guide slide bar 221 to slide along the guide slide groove 211 to realize the vibration screening of the rapeseed seeds to be screened. At the same time, the rotating shaft 242 drives the cleaning brush plate 246 to move synchronously to clean the inner wall of the machine body 1, and the airflow generated by the fan 41 exerts a force on the rapeseed seeds to be screened in the inner cavity of the machine body 1, so that the light debris in the rapeseed seeds to be screened floats; the negative pressure pump 32 is adjusted, and the negative pressure pump 32 applies a negative pressure force to the inner cavity of the machine body 1 through the negative pressure air inlet pipe 31, and the light debris in the rapeseed seeds to be screened is drawn into the negative pressure exhaust pipe 33, and then falls into the collection box 34 along the negative pressure exhaust pipe 33.

[0037] After the rapeseed seeds are screened, the valve 53 is adjusted to open the discharge pipe 52. Due to the rotation of the vibrating screen plate 231, the rapeseed seeds on the vibrating screen plate 231 are discharged along the discharge pipe 52 under the action of centrifugal force; in addition, the rotating motor 542 is adjusted, and the output shaft of the rotating motor 542 drives the rotating rod 543 to rotate, and the rotating rod 543 drives the spiral blade 544 to rotate. The spiral blade 544 drives the rapeseed seeds on the uppermost vibrating screen plate 231 to move along the spiral blade 544 to the discharge end of the feeding pipe 541, and re-enter the inner cavity of the body 1 along the feeding pipe 541 for re-screening. When the rapeseed seeds on the uppermost vibrating screen plate 231 are completely screened, the discharge valve is adjusted to discharge the rapeseed seeds on the uppermost vibrating screen plate 231.

[0038] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A rapeseed seed gravity sorting and impurity removal device, characterized in that: It comprises a machine body (1) and a screening and impurity removal mechanism (2); The screening and impurity removal mechanism (2) comprises a vibrating screening component (21) and a negative pressure pumping component (22), wherein the vibrating screening component (21) comprises a support ring (211), a vibrating screen frame (213), an elastic connecting member (212) and an impurity removal driving member (214); The support ring (211) is located in the inner cavity of the machine body (1), and the support ring (211) is coaxially fixed with the machine body (1), and the support ring (211) is located below the vibration screen frame (213); The plurality of elastic connecting members (212) are evenly distributed along the circumferential direction of the mounting frame (2132), and the elastic connecting member (212) comprises a guide slide bar (2121) and a compression spring (2122); A guide slot (2111) for sliding movement of the end of the guide slide rod (2121) is provided on the top wall of the support ring (211), and the guide slot (2111) is arranged along the circumferential direction of the support ring (211); The end of the guide slide bar (2121) away from the guide slide groove (2111) passes through the installation frame (2132), and the guide slide bar (2121) is slidably connected to the installation frame (2132); The compression spring (2122) is sleeved on the guide slide bar (2121), and one end of the compression spring (2122) abuts against the guide slide bar (2121), and the other end abuts against the mounting frame (2132); The vibration screen frame (213) comprises a plurality of vibration screen plates (2131) and a mounting frame (2132), wherein the mounting frame (2132) is coaxially mounted in the inner cavity of the machine body (1), and the mounting frame (2132) is slidably connected to the machine body (1); A plurality of the vibrating screen plates (2131) are distributed along the axial direction of the mounting frame (2132), and the vibrating screen plates (2131) are fixedly connected to the mounting frame (2132); The vibrating screen plate (2131) is provided with sieve holes (2134), and the sieve holes (2134) on the upper vibrating screen plate (2131) are larger than the sieve holes (2134) on the lower vibrating screen plate (2131); The impurity removal driving member (214) comprises a driving motor (2141), a rotating shaft (2142), an auxiliary support ring (2144), a plurality of cleaning brush plates (2146) and a plurality of auxiliary support rods (2143); The driving motor (2141) is mounted on the machine body (1); The output shaft of the driving motor (2141) is coaxially fixed with the rotating shaft (2142), and the rotating shaft (2142) is retractable, and the rotating shaft (2142) is coaxially fixed with the vibrating screen frame (213); A plurality of cleaning brush plates (2146) are distributed along the axial direction of the rotating shaft (2142), and the cleaning brush plates (2146) are fixedly connected to the rotating shaft (2142), and the cleaning brush plates (2146) are in contact with the inner wall of the machine body (1); The auxiliary support ring (2144) is located below the vibrating screen frame (213), and the auxiliary support ring (2144) is coaxially fixed to the inner wall of the body (1), and a wave-shaped ring groove (2145) is provided on the auxiliary support ring (2144), and the wave-shaped ring groove (2145) is coaxially arranged with the auxiliary support ring (2144); One end of the auxiliary support rod (2143) is fixedly connected to one end of the rotating shaft (2142) away from the driving motor (2141), and the other end can slide along the wave-shaped ring groove (2145); The negative pressure extraction component (22) is used to extract light debris from the inner cavity of the machine body (1); The screening and impurity removal mechanism (2) further comprises an air selection component (23) for blowing and floating light rapeseed debris in the inner cavity of the machine body (1); the air selection component (23) comprises a fan (231), an exhaust pipe (232) and an air guide cover (233); The fan (231) is installed on the machine body (1); The air outlet end of the fan (231) is fixedly connected to the exhaust pipe (232); One end of the exhaust pipe (232) extending into the inner cavity of the machine body (1) is fixedly connected to the air guide cover (233), and the air guide cover (233) is located directly below the vibration screen frame (213).

2. The rapeseed seed gravity sorting and impurity removal device according to claim 1, characterized in that: The guide slide bar (2121) comprises an integrally arranged guide slide portion (2121a), an annular limiting portion (2121c) and a vertical portion (2121b); The guide slide portion (2121a), the annular limiting portion (2121c) and the vertical portion (2121b) are coaxially arranged, the guide slide portion (2121a) is located at the end of the vertical portion (2121b), and the guide slide portion (2121a) is slidably connected to the guide slide groove (2111); The annular limiting portion (2121c) is located above the supporting ring (211), and one end of the compression spring (2122) is connected to the annular limiting portion (2121c), and the other end is connected to the mounting frame (2132); The vertical portion (2121b) passes through the mounting frame (2132), and the vertical portion (2121b) is slidably connected to the mounting frame (2132).

3. The rapeseed seed gravity sorting and impurity removal device according to claim 1, characterized in that: The negative pressure exhaust assembly (22) comprises a negative pressure pump (222), a negative pressure air inlet pipe (221), a negative pressure air outlet pipe (223) and a collection box (224); the negative pressure pump (222) is installed on the machine body (1), the air inlet end of the negative pressure pump (222) is connected to the negative pressure air inlet pipe (221), and the end of the negative pressure air inlet pipe (221) away from the negative pressure pump (222) is connected to the inner cavity of the machine body (1); one end of the negative pressure air inlet pipe (221) is connected to the air outlet end of the negative pressure pump (222), and the other end is connected to the inner cavity of the collection box (224).

4. The rapeseed seed gravity sorting and impurity removal device according to claim 1, characterized in that: The machine also comprises a plurality of discharge mechanisms (3) for discharging the sieved rapeseed seeds, wherein the plurality of discharge mechanisms (3) are distributed along the axial direction of the machine body (1), and the discharge mechanisms (3) are distributed corresponding to the vibrating screen plate (2131); the discharge mechanism (3) comprises a discharge hopper (31), a discharge pipe (32) and a valve (33); the discharge hopper (31) is mounted on the machine body (1), and the discharge hopper (31) faces the vibrating screen plate (2131); the discharge end of the discharge hopper (31) is connected to the discharge pipe (32), and the valve (33) is mounted on the discharge pipe (32).

5. The rapeseed seed gravity sorting and impurity removal device according to claim 4, characterized in that: A spiral feeding assembly (34) is connected to the discharge pipe (32) directly facing the uppermost vibration screen plate (2131), and the spiral feeding assembly (34) comprises a feeding pipe (341), a rotating rod (343), a spiral blade (344) and a rotating motor (342); The feeding pipe (341) is installed on the machine body (1), and the feeding pipe (341) is rotatably connected to the rotating rod (343); The spiral blade (344) is coaxially fixed on the rotating rod (343), and the spiral blade (344) is located in the inner cavity of the feeding tube (341); The extending section of the rotating rod (343) extending out of the feeding tube (341) is coaxially fixed to the output shaft of the rotating motor (342); The feeding end of the feeding pipe (341) is connected to the discharging pipe (32), and the discharging end of the feeding pipe (341) is in communication with the inner cavity of the machine body (1).

6. The rapeseed seed gravity sorting and impurity removal device according to claim 4, characterized in that: A material blocking ring (2133) is coaxially fixedly connected to the bottom wall of the vibration screen plate (2131); the material blocking ring (2133) is located in the inner cavity of the machine body (1), and the material blocking ring (2133) is slidably connected to the machine body (1).

7. The rapeseed seed gravity sorting and impurity removal device according to claim 1, characterized in that: The rotating shaft (2142) comprises a coaxially arranged sleeve portion (2142a) and a connecting portion (2142b), wherein the sleeve portion (2142a) and the connecting portion (2142b) are slidably connected, the sleeve portion (2142a) is coaxially fixed to the output shaft of the rotating motor (342), and the sleeve portion (2142a) is located above the vibrating screen plate (2131), and the connecting portion (2142b) is fixedly connected to the vibrating screen plate (2131).

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