CN112058667A - Air screen type screening machine for screening rice seeds and using method thereof - Google Patents

Air screen type screening machine for screening rice seeds and using method thereof Download PDF

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Publication number
CN112058667A
CN112058667A CN202011056942.3A CN202011056942A CN112058667A CN 112058667 A CN112058667 A CN 112058667A CN 202011056942 A CN202011056942 A CN 202011056942A CN 112058667 A CN112058667 A CN 112058667A
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China
Prior art keywords
block
rod
filter screen
rice seeds
support
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Granted
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CN202011056942.3A
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Chinese (zh)
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CN112058667B (en
Inventor
柳松
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Xiaoxian Hesheng Seed Industry Co Ltd
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Xiaoxian Hesheng Seed Industry Co Ltd
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Priority to CN202011056942.3A priority Critical patent/CN112058667B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B9/00Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/04Stationary flat screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • B07B1/34Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro perpendicularly or approximately perpendiculary to the plane of the screen
    • B07B1/343Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro perpendicularly or approximately perpendiculary to the plane of the screen with mechanical drive elements other than electromagnets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/42Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46Constructional details of screens in general; Cleaning or heating of screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B4/00Separating solids from solids by subjecting their mixture to gas currents
    • B07B4/08Separating solids from solids by subjecting their mixture to gas currents while the mixtures are supported by sieves, screens, or like mechanical elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/06Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

The invention discloses an air-screen type screening machine for screening rice seeds and a using method thereof, wherein the air-screen type screening machine comprises a support, a bulk material hopper is fixedly connected to the top surface of the support, a first filter screen is arranged between the bottom surface of the bulk material hopper and the inner top surface of the support, a sliding chute is formed in the inner side wall of the support, a first spring is arranged on the top surface of the sliding chute, a sliding rod is fixedly connected to the other end of the first spring, the sliding rod is in sliding sleeve joint with the sliding chute, a second filter screen is fixedly connected to the other end of the sliding rod in a sleeved mode, a baffle is fixedly connected to the top surface of the second filter screen, a cross rod is fixedly connected to the bottom surface of; the invention can improve the screening effect, completely separate rice seeds, reduce the mixing of impurities and the rice seeds, facilitate the subsequent processing of the rice seeds, reduce the collision between the bracket and the ground, prevent the screening machine from being damaged easily, prolong the service life of the screening machine and prevent the screening operation from being influenced.

Description

Air screen type screening machine for screening rice seeds and using method thereof
Technical Field
The invention belongs to the technical field of agricultural seed screening, and particularly relates to an air screen type screening machine for screening rice seeds and a using method thereof.
Background
The rice seeds are called rice or rice after the rice grains are hulled after being planted, nearly half of people in the world eat the rice, besides the rice can be eaten, wine or sugar can be made as industrial raw materials, the rice husks and rice straws have multiple purposes and go deep into the life of people, and the common rice seeds are mixed with leaves, stones, soil and blighted grains and need to be screened.
General sieve separator in market only adopts filterable mode to filter for the impurity that granule small mass is light can't separate with the seed, makes the screening effect poor, brings inconvenience for the processing of follow-up seed, and general sieve separator in the use, and the support can be because of vibrations and ground collision, fragile sieve separator, has reduced the life of sieve separator, has brought the inconvenient problem of screening operation, for this reason, we provide a wind sieve formula sieve separator for rice seed screening and application method thereof.
Disclosure of Invention
The invention aims to provide an air screen type screening machine for screening rice seeds and a using method thereof, and aims to solve the problems that the screening of a common screening machine provided in the background technology is only carried out in a filtering mode, so that impurities with small particles and light weight cannot be separated from the seeds, the screening effect is poor, and inconvenience is brought to subsequent seed processing, and in the using process of the common screening machine, a support collides with the ground due to vibration, the screening machine is easy to damage, the service life of the screening machine is shortened, and the screening operation is inconvenient.
In order to achieve the purpose, the invention provides the following technical scheme: an air screen type screening machine for screening rice seeds comprises a bracket, wherein a bulk material hopper is fixedly connected to the top surface of the bracket, a first filter screen is arranged between the bottom surface of the bulk material hopper and the inner top surface of the bracket, and the inner side wall of the bracket is provided with a chute, the top surface of the chute is provided with a first spring, the other end of the first spring is fixedly connected with a sliding rod, the sliding rod is sleeved with the chute in a sliding way, the other end of the sliding rod is fixedly sleeved with a second filter screen, the top surface of the second filter screen is fixedly connected with a baffle, the bottom surface of the sliding rod is fixedly connected with a cross rod, the cross rod and the filter screen are arranged in parallel, a fixed block is fixedly connected to the side wall of the bottom end of the bracket, a motor is arranged at the other end of the fixed block, the output end of the motor is fixedly connected with a first transmission shaft, the other end of the first transmission shaft is fixedly sleeved with a top block, the top block is located under the cross rod, and the top block is in contact connection with the cross rod.
As a further scheme of the invention: install respectively on the bottom surface four corners of support and link up the piece, the top surface rigid coupling that links up the piece has the stopper, cavity one has been seted up in the stopper, the top surface of cavity one rotates and is connected with commentaries on classics piece, the top of commentaries on classics piece extends to outside the stopper, and changes the piece internal fixation and cup jointed transmission shaft two, the carousel is installed on the top of transmission shaft two, the bottom of transmission shaft two extends to in the cavity one, and the extension of transmission shaft two is served the rigid coupling and is had the lead screw, the other end of lead screw runs through and links up the piece, and the meshing has cup jointed the movable block on the extension end of lead screw, it has push rod one to articulate on the lateral wall of movable block, the other end of push rod one articulates there is the connecting block, it has push rod two to articulate on the lateral wall of connecting block, the other end of push rod.
As a further scheme of the invention: the utility model discloses a support, including the support, the diapire of support, the bottom rigid coupling of montant has been seted up to the cavity two, and has slided to cup joint the montant on the bottom surface of support, the bottom rigid coupling of montant has the sill bar, the top of montant extends to in the cavity two, and the rigid coupling has the pole that links up on the income end of montant, the top surface of linking the pole installs spring two, spring two's the other end and cavity two's top surface rigid coupling, and it has the depression bar to articulate on the terminal surface of pole that links up, the other end of depression bar articulates there is the slider, the top surface sliding connection of slider and cavity two, and install spring three on the lateral wall of slider, spring three.
As a further scheme of the invention: the fan is installed to the other end of connecting rod, the fan is located the top of filter screen two, the slope of filter screen sets up, and filter screen one is located filter screen two directly over, the slide bar is provided with two, and two slide bars set up about the fixed block symmetry.
As a further scheme of the invention: the rotary block is in an I-shaped design, the screw rod is rotatably sleeved with the connecting block, the first push rod and the second push rod are respectively provided with two parts, the first push rod and the second push rod are respectively symmetrically arranged about the screw rod, the pressing plates are provided with two parts, and the two pressing plates are symmetrically arranged about the screw rod.
As a further scheme of the invention: montant and spring two are provided with two respectively, and two montants and two symmetrical settings about the central line of sill bar respectively of spring, depression bar and cushion are provided with two respectively, and two depression bars and cushion set up about the central line symmetry of sill bar, and the sill bar is provided with the multiunit, and multiunit sill bar evenly distributed in the bottom surface of support.
As a further scheme of the invention: the first springs are four, and the four first springs are arranged corresponding to the four corners of the support.
A use method of an air screen type screening machine for screening rice seeds comprises the following steps:
the method comprises the following steps: pouring the materials into a bulk hopper, dispersing the materials through the bulk hopper, scattering the materials onto a first filter screen, primarily filtering through the first filter screen to separate large-volume impurities in the materials, so that small-volume rice seeds and small and light impurities fall down, simultaneously starting a fan on a connecting rod, so that the fan blows small and light impurities among the rice seeds, the small and light impurities are primarily separated from the rice seeds, when the rice seeds fall onto a second filter screen, the heavy and small impurities are filtered out through the second filter screen, so that the rice seeds and part of the small and light impurities are left on the second filter screen, so that the rice seeds are separated layer by the materials, then starting a motor on a fixed block, so that the motor drives a top block to rotate through a transmission shaft, the top block upwards pushes a cross rod to move, the cross rod drives a slide rod to upwards move, and the slide rod extrudes a first spring in a slide groove, the first spring is contracted to store elastic potential energy, meanwhile, the second filter screen on the sliding rod drives the rice seeds and part of smaller and lighter impurities to move upwards, when the top block is separated from the cross rod, the constraint of the first spring is released, the first spring rebounds, the sliding rod is pushed to move downwards, the second filter screen on the sliding rod moves downwards suddenly, the rice seeds and part of smaller and lighter impurities are vacated temporarily, and part of smaller and lighter impurities are blown by the fan to be separated from the rice seeds, so that the rice seeds can be completely separated;
step two: when the screening machine is installed, the pressing plate and the moving block extend into a groove which is pre-arranged on the ground, then the turntable is rotated, the turntable drives the transmission shaft II to rotate, the transmission shaft II can stably drive the lead screw to rotate through the limiting guide of the rotating block, the moving block on the lead screw is enabled to move, the moving block cannot move through the limiting of the push rod I and the push rod II, the moving block is enabled to move upwards, the moving block is enabled to extrude the push rod I and the push rod II, the push rod I and the push rod II move oppositely, the purpose of pushing the connecting block to move outwards is achieved, the pressing plate on the connecting block is indirectly enabled to extrude the inner wall of the groove;
step three: when the screening machine works, the support can vibrate due to the vibration of the second filter screen, so that the support moves downwards, the second cavity in the support pushes the sliding block to move downwards, the sliding block moves towards two sides under the support of the pressing rod, the sliding block extrudes the third spring to store kinetic energy, the third spring extrudes the cushion pad, and meanwhile, the second spring between the second cavity and the connecting rod compresses, so that the impact in the vertical direction can be buffered, the collision between the support and the ground is reduced, the screening machine is not easy to damage, and the operation is completed.
Compared with the prior art, the invention has the beneficial effects that:
1. pouring the materials into a bulk hopper, dispersing the materials through the bulk hopper, scattering the materials onto a first filter screen, primarily filtering through the first filter screen to separate large-volume impurities in the materials, so that small-volume rice seeds and small and light impurities fall down, simultaneously starting a fan on a connecting rod to blow small and light impurities among the rice seeds by the fan, primarily separating the small and light impurities from the rice seeds, when the rice seeds fall onto a second filter screen, filtering out the heavy and small impurities through the second filter screen to leave the rice seeds and part of the small and light impurities on the second filter screen, separating the materials layer by layer, effectively separating the rice seeds, then starting a motor on a fixed block, driving a top block to rotate by the motor through a transmission shaft, driving a transverse rod to move upwards by the top block, driving a sliding rod to move upwards by the transverse rod, thereby make spring one in the slide bar extrusion spout, make spring one shrink, store elastic potential energy, filter screen two on the slide bar drives the rice seed and the less lighter impurity of part shifts up simultaneously, when kicking block and horizontal pole separation, the constraint of spring one is relieved, make spring one kick-back, thereby promote the slide bar and move down, make filter screen two on the slide bar move down suddenly, and then make rice seed and the less lighter impurity of part vacate for a short time, make the less lighter impurity of part blow through the fan and separate with the rice seed, reach the purpose that improves the screening effect, make the rice seed separate completely, it mixes with the rice seed to reduce impurity, do benefit to the processing of follow-up rice seed.
2. The support can shake because of the vibrations of filter screen two, thereby make the support move down, make cavity two in the support promote the slider to move down, make the slider move to both sides under the support of depression bar, thereby make slider extrusion spring three, store kinetic energy, spring three pressurization blotter simultaneously, further decompose and vibrate the impact, and change some vertical direction's impact into the impact of horizontal direction, the impact of sieve separator has been alleviated, simultaneously cavity two and the second compression of spring between the extension rod, make vertical direction's impact can cushion, reach the purpose of fully alleviating the vibration, the collision between support and ground has been reduced, make the sieve separator not fragile, the life of sieve separator has been improved, make the screening operation not influenced.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is an enlarged view of a portion A of the present invention.
FIG. 3 is an enlarged view of the structure of part B of the present invention.
FIG. 4 is a sectional view of the stopper structure of the present invention.
FIG. 5 is a schematic view of the bottom structure of the engagement block of the present invention.
FIG. 6 is a cross-sectional view of a stent structure according to the present invention.
FIG. 7 is a schematic view of a second embodiment of the filter screen of the present invention.
FIG. 1, a stent; 2. a bulk hopper; 3. a first filter screen; 4. a first spring; 5. a slide bar; 6. a second filter screen; 7. a baffle plate; 8. a cross bar; 9. a fixed block; 10. an electric motor; 11. a first transmission shaft; 12. a top block; 13. a connecting rod; 14. a fan; 15. a joining block; 16. a limiting block; 17. rotating the block; 18. a second transmission shaft; 19. a turntable; 20. a screw rod; 21. a moving block; 22. a first push rod; 23. connecting blocks; 24. a second push rod; 25. pressing a plate; 26. a vertical rod; 27. a bottom bar; 28. a connecting rod; 29. a second spring; 30. a pressure lever; 31. a slider; 32. a third spring; 33. a cushion pad.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in figures 1-7, an air-screen type screening machine for screening rice seeds and a using method thereof comprise a bracket 1, a bulk material hopper 2 is fixedly connected to the top surface of the bracket 1, a filter screen I3 is installed between the bottom surface of the bulk material hopper 2 and the inner top surface of the bracket 1, a chute is formed in the inner side wall of the bracket 1, a spring I4 is installed on the top surface of the chute, a slide rod 5 is fixedly connected to the other end of the spring I4, the slide rod 5 is slidably sleeved with the chute, a filter screen II 6 is fixedly sleeved on the other end of the slide rod 5, a baffle 7 is fixedly connected to the top surface of the filter screen II 6, a cross rod 8 is fixedly connected to the bottom surface of the slide rod 5, the cross rod 8 is arranged in parallel to the filter screen II 6, a fixed block 9 is fixedly connected to the side wall of the bottom end of the bracket 1, a motor 10 is installed on, the top block 12 is located under the cross rod 8, the top block 12 is in contact connection with the cross rod 8, materials are poured into the bulk bin 2, the materials are dispersed through the bulk bin 2, the materials are scattered on the filter screen I3, large-volume impurities in the materials are separated through primary filtration of the filter screen I3, rice seeds with smaller volumes and smaller impurities fall down, the fan 14 on the connecting rod 13 is started simultaneously, the fan 14 blows smaller and lighter impurities among the rice seeds, the smaller and lighter impurities are separated from the rice seeds primarily, when the rice seeds fall onto the filter screen II 6, the heavier and smaller impurities are filtered out through the filter screen II 6, the rice seeds and part of the smaller and lighter impurities are left on the filter screen II 6, the materials are separated layer by layer, the rice seeds can be separated effectively, the motor 10 on the fixing block 9 is started again, the motor 10 drives the top block 12 to rotate through the transmission shaft I11, make kicking block 12 upwards promote horizontal pole 8 and remove, make horizontal pole 8 drive slide bar 5 and shift up, thereby make slide bar 5 extrude spring one 4 in the spout, make spring one 4 shrink, store elastic potential energy, filter screen two 6 on the slide bar 5 drives rice seed and the less lighter impurity of part and shifts up simultaneously, when kicking block 12 and horizontal pole 8 separation, the constraint of spring one 4 is relieved, make spring one 4 kick-back, thereby promote slide bar 5 and shift down, make filter screen two 6 on the slide bar 5 move down suddenly, and then make rice seed and the less lighter impurity of part temporarily vacate, make the less lighter impurity of part blow through fan 14 and separate with the rice seed, reach the purpose that improves the screening effect, make the rice seed can separate completely, reduce impurity and rice seed and mix, do benefit to the processing of follow-up rice seed.
Four corners of the bottom surface of the bracket 1 are respectively provided with a connecting block 15, the top surface of the connecting block 15 is fixedly connected with a limiting block 16, a first cavity is arranged in the limiting block 16, the top surface of the first cavity is rotatably connected with a rotating block 17, the top end of the rotating block 17 extends out of the limiting block 16, a second transmission shaft 18 is fixedly sleeved in the rotating block 17, the top end of the second transmission shaft 18 is provided with a rotary table 19, the bottom end of the second transmission shaft 18 extends into the first cavity, the extending end of the second transmission shaft 18 is fixedly connected with a lead screw 20, the other end of the lead screw 20 penetrates through the connecting block 15, the extending end of the lead screw 20 is engaged and sleeved with a moving block 21, the side wall of the moving block 21 is hinged with a first push rod 22, the other end of the first push rod 22 is hinged with a connecting block 23, the side wall of the connecting block 23 is hinged with a second push rod 24, the pressing plate 25 and the moving block 21 extend into a groove which is formed in the ground in advance, the rotating disc 19 is rotated, the rotating disc 19 drives the second transmission shaft 18 to rotate, the second transmission shaft 18 is guided in a limiting mode through the rotating block 17, the lead screw 20 can be stably driven to rotate, the lead screw 20 is prevented from moving downwards, the moving block 21 on the lead screw 20 can move, the moving block 21 cannot move in a limiting mode through the first push rod 22 and the second push rod 24, the moving block 21 can move upwards, the first push rod 22 and the second push rod 24 can be extruded by the moving block 21, the first push rod 22 and the second push rod 24 can move oppositely, the purpose of pushing the connecting block 23 to move outwards is achieved, the pressing plate 25 on the connecting block 23 indirectly extrudes the inner wall of the groove, the purpose of fixing the screening.
A cavity II is formed in the bottom wall of the support 1, a vertical rod 26 is sleeved on the bottom surface of the support 1 in a sliding mode, a bottom rod 27 is fixedly connected to the bottom end of the vertical rod 26, the top end of the vertical rod 26 extends into the cavity II, a connecting rod 28 is fixedly connected to the extending end of the vertical rod 26, a spring II 29 is installed on the top surface of the connecting rod 28, the other end of the spring II 29 is fixedly connected to the top surface of the cavity II, a pressure rod 30 is hinged to the end surface of the connecting rod 28, a sliding block 31 is hinged to the other end of the pressure rod 30, the sliding block 31 is slidably connected to the top surface of the cavity II, a spring III 32 is installed on the side wall of the sliding block 31, a cushion 33 is fixedly connected to the side wall of the cavity II, when the screening machine works, the support 1 vibrates due to the vibration of the filter screen II 6, the support 1 moves downwards, the sliding block 31 is pushed to move downwards by the cavity II in, thereby make slider 31 extrusion spring three 32, store kinetic energy, spring three 32 pressurization blotter 33 simultaneously, further decompose and vibrate the impact, and change some vertical direction's impact into the impact of horizontal direction, the impact of sieve separator has been alleviated, spring two 29 compressions between cavity two and the extension rod 28 simultaneously, make vertical direction's impact can cushion, reach the purpose of fully alleviating the shock, the collision between support 1 and ground has been reduced, make the sieve separator not fragile, the life of sieve separator has been improved, it is not influenced to make the screening operation.
The connecting rod 13 is fixedly connected to the side wall of the support 1, the fan 14 is installed at the other end of the connecting rod 13, the fan 14 is located above the second filter screen 6, the first filter screen 3 is obliquely arranged, the first filter screen 3 is located right above the second filter screen 6, the two sliding rods 5 are symmetrically arranged relative to the fixed block 9, the structure is reasonable, and the effect of the air screen is convenient to achieve.
The rotary block 17 is in an I-shaped design, the screw rod 20 is rotatably sleeved with the connecting block 15, the first push rod 22 and the second push rod 24 are respectively provided with two parts, the two first push rod 22 and the two second push rod 24 are respectively symmetrically arranged about the screw rod 20, the two pressing plates 25 are arranged, the two pressing plates 25 are symmetrically arranged about the screw rod 20, the rotary block 17 is convenient to clamp, and the fixing effect is improved.
The vertical rod 26 and the second spring 29 are respectively provided with two, the two vertical rods 26 and the second spring 29 are respectively symmetrically arranged about the central line of the bottom rod 27, the pressing rod 30 and the buffer pad 33 are respectively provided with two, the two pressing rods 30 and the buffer pad 33 are symmetrically arranged about the central line of the bottom rod 27, the bottom rod 27 is provided with multiple groups, and the multiple groups of bottom rods 27 are uniformly distributed on the bottom surface of the support 1, so that the buffer effect is improved, and the expected effect is convenient to achieve.
The springs I4 are four, and the four springs I4 are arranged corresponding to the four corners of the support 1, so that the structure is reasonable, and the expected effect is convenient to achieve.
The working principle of the screening machine is as follows: pouring the materials into a bulk hopper 2, dispersing the materials through the bulk hopper 2, scattering the materials onto a filter screen I3, primarily filtering through the filter screen I3 to separate large-volume impurities in the materials, so that small-volume rice seeds and small-weight impurities fall down, simultaneously starting a fan 14 on a connecting rod 13, so that the fan 14 blows small-weight impurities among the rice seeds, the small-weight impurities are primarily separated from the rice seeds, when the rice seeds fall onto a filter screen II 6, the heavy-weight and small-weight impurities are filtered out through the filter screen II 6, so that the rice seeds and part of the small-weight and small impurities are left on the filter screen II 6, so that the materials are separated layer by layer, the rice seeds can be effectively separated, then starting a motor 10 on a fixed block 9, so that the motor 10 drives a top block 12 to rotate through a transmission shaft I11, and the top block 12 upwards pushes a cross rod 8 to move, the cross rod 8 drives the slide rod 5 to move upwards, so that the slide rod 5 extrudes the spring I4 in the sliding chute, the spring I4 contracts and stores elastic potential energy, meanwhile, the filter screen II 6 on the slide rod 5 drives the rice seeds and part of smaller and lighter impurities to move upwards, when the top block 12 is separated from the cross rod 8, the constraint of the spring I4 is relieved, the spring I4 rebounds, so that the slide rod 5 is pushed to move downwards, the filter screen II 6 on the slide rod 5 moves downwards suddenly, the rice seeds and part of smaller and lighter impurities are emptied temporarily, part of smaller and lighter impurities are separated from the rice seeds by blowing of the fan 14, the purpose of improving the screening effect is achieved, the rice seeds can be completely separated, the impurities are reduced from being mixed with the rice seeds, the subsequent processing of the rice seeds is facilitated, when the screening machine is installed, the pressing plate 25 and the moving block 21 are stretched into grooves which are, then the rotating disc 19 is rotated, so that the rotating disc 19 drives the second transmission shaft 18 to rotate, the second transmission shaft 18 can stably drive the lead screw 20 to rotate through the limiting guide of the rotating block 17, the lead screw 20 is prevented from moving downwards, the moving block 21 on the lead screw 20 moves, the moving block 21 cannot move through the limiting of the first push rod 22 and the second push rod 24, the moving block 21 moves upwards, the moving block 21 further extrudes the first push rod 22 and the second push rod 24, the first push rod 22 and the second push rod 24 move oppositely, the purpose of pushing the connecting block 23 to move outwards is achieved, the pressing plate 25 on the connecting block 23 indirectly extrudes the inner wall of the groove, the purpose of fixing the screening machine is achieved, the mounting and dismounting of the screening machine are simple and convenient, when the screening machine works, the support 1 vibrates due to the vibration of the second filter screen 6, the support 1 moves downwards, and the second cavity in the, make slider 31 move to both sides under depression bar 30's support, thereby make slider 31 extrusion spring three 32, store kinetic energy, spring three 32 pressurization blotter 33 simultaneously, further decompose and vibrate the impact, and change some vertical direction's impact into the impact of horizontal direction, the impact of sieve separator has been alleviated, spring two 29 compression between cavity two and the linking pole 28 simultaneously, make vertical direction's impact can cushion, reach the purpose of fully alleviating the shock, the collision between support 1 and ground has been reduced, make the sieve separator not fragile, the life of sieve separator has been improved, make the screening operation not influenced, accomplish the operation.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.

Claims (8)

1. The utility model provides a rice seed screening is with wind sieve formula sieve separator, its characterized in that, includes support (1), the rigid coupling has bulk cargo fill (2) on the top surface of support (1), install filter screen one (3) between the bottom surface of bulk cargo fill (2) and the interior top surface of support (1), and seted up the spout on the inside wall of support (1), spring one (4) is installed to the top surface of spout, the other end rigid coupling of spring one (4) has slide bar (5), slide bar (5) and spout slip cup joint, and the other end of slide bar (5) is fixed to have cup jointed filter screen two (6), the top surface rigid coupling of filter screen two (6) has baffle (7), and the bottom surface rigid coupling of slide bar (5) has horizontal pole (8), horizontal pole (8) and filter screen two (6) parallel arrangement, and the rigid coupling has fixed block (9) on the bottom lateral wall of support (1), motor (10) are installed to the other end of fixed block (9), the rigid coupling has transmission shaft (11) on the output of motor (10), the fixed cover of the other end of transmission shaft (11) has connect kicking block (12), kicking block (12) are located horizontal pole (8) under, and kicking block (12) are connected with horizontal pole (8) contact.
2. The air screen type screening machine for screening rice seeds as claimed in claim 1, wherein four corners of the bottom surface of the bracket (1) are respectively provided with a connection block (15), a limiting block (16) is fixedly connected to the top surface of the connection block (15), a first cavity is formed in the limiting block (16), a rotating block (17) is rotatably connected to the top surface of the first cavity, the top end of the rotating block (17) extends out of the limiting block (16), a second transmission shaft (18) is fixedly connected in the rotating block (17), a rotary table (19) is installed at the top end of the second transmission shaft (18), the bottom end of the second transmission shaft (18) extends into the first cavity, a lead screw (20) is fixedly connected to the extending end of the second transmission shaft (18), the other end of the lead screw (20) penetrates through the connection block (15), and a moving block (21) is engaged and sleeved on the extending end of the lead screw (20), the side wall of the moving block (21) is hinged with a first push rod (22), the other end of the first push rod (22) is hinged with a connecting block (23), the side wall of the connecting block (23) is hinged with a second push rod (24), the other end of the second push rod (24) is hinged with the bottom surface of the connecting block (15), and the side wall of the connecting block (23) is fixedly connected with a pressing plate (25).
3. The air-screen type screening machine for screening rice seeds as claimed in claim 1, wherein a second cavity is formed in the bottom wall of the support (1), a vertical rod (26) is sleeved on the bottom surface of the support (1) in a sliding manner, a bottom rod (27) is fixedly connected to the bottom end of the vertical rod (26), the top end of the vertical rod (26) extends into the second cavity, a connecting rod (28) is fixedly connected to the extending end of the vertical rod (26), a second spring (29) is installed on the top surface of the connecting rod (28), the other end of the second spring (29) is fixedly connected to the top surface of the second cavity, a pressure rod (30) is hinged to the end surface of the connecting rod (28), a sliding block (31) is hinged to the other end of the pressure rod (30), the sliding block (31) is slidably connected to the top surface of the second cavity, a third spring (32) is installed on the side wall of the sliding block (31), and a cushion pad (33) is fixedly connected to the, the buffer pad (33) is fixedly connected with the side wall of the second cavity.
4. The air screen type screening machine for screening rice seeds as claimed in claim 1, wherein a connecting rod (13) is fixedly connected to a side wall of the support (1), a fan (14) is installed at the other end of the connecting rod (13), the fan (14) is located above the second filter screen (6), the first filter screen (3) is obliquely arranged, the first filter screen (3) is located right above the second filter screen (6), the two sliding rods (5) are arranged, and the two sliding rods (5) are symmetrically arranged relative to the fixed block (9).
5. The air screen type screening machine for screening rice seeds as claimed in claim 2, wherein the rotating block (17) is in an I-shaped design, the screw rod (20) is rotatably sleeved with the connecting block (15), two push rods (22) and two push rods (24) are respectively arranged, the two push rods (22) and the two push rods (24) are respectively symmetrically arranged about the screw rod (20), two press plates (25) are arranged, and the two press plates (25) are symmetrically arranged about the screw rod (20).
6. The air screen type screening machine for screening rice seeds as claimed in claim 3, wherein there are two vertical rods (26) and two springs (29), respectively, and the two vertical rods (26) and the two springs (29) are symmetrically arranged about the central line of the bottom rod (27), respectively, there are two pressure rods (30) and two cushioning pads (33), respectively, and the two pressure rods (30) and the two cushioning pads (33) are symmetrically arranged about the central line of the bottom rod (27), and the bottom rod (27) is provided with multiple groups, and the multiple groups of bottom rods (27) are uniformly distributed on the bottom surface of the support (1).
7. The air screen type screening machine for screening rice seeds as claimed in claim 1, wherein the number of the first springs (4) is four, and the four first springs (4) are arranged corresponding to four corners of the support (1).
8. The use method of the air screen type screening machine for screening the rice seeds is characterized by comprising the following steps:
the method comprises the following steps: the method comprises the steps of pouring materials into a bulk hopper (2), dispersing the materials through the bulk hopper (2), scattering the materials onto a first filter screen (3), primarily filtering through the first filter screen (3), separating large-volume impurities from the materials, allowing smaller-volume rice seeds and smaller-weight impurities to fall, simultaneously starting a fan (14) on a connecting rod (13), allowing the fan (14) to blow the smaller-weight impurities among the rice seeds, primarily separating the smaller-weight impurities from the rice seeds, when the rice seeds fall onto a second filter screen (6), filtering out the heavier-and-smaller impurities through the second filter screen (6), allowing the rice seeds and part of the smaller-and-weight impurities to be left on the second filter screen (6), separating the rice seeds layer by layer through the materials, starting a motor (10) on a fixed block (9), and allowing the motor (10) to drive a top block (12) to rotate through a first transmission shaft (11), the jacking block (12) pushes the cross rod (8) to move upwards, the cross rod (8) drives the slide rod (5) to move upwards, the slide rod (5) extrudes the spring I (4) in the sliding chute, the spring I (4) contracts and stores elastic potential energy, meanwhile, the filter screen II (6) on the slide rod (5) drives the rice seeds and part of smaller and lighter impurities to move upwards, when the jacking block (12) is separated from the cross rod (8), the constraint of the spring I (4) is relieved, the spring I (4) rebounds, the slide rod (5) is pushed to move downwards, the filter screen II (6) on the slide rod (5) moves downwards suddenly, the rice seeds and part of smaller and lighter impurities are emptied temporarily, and part of smaller and lighter impurities are blown by the fan (14) to be separated from the rice seeds, and the rice seeds can be completely separated;
step two: when the screening machine is installed, the pressing plate (25) and the moving block (21) extend into a groove which is formed in the ground in advance, the rotary table (19) is rotated, the rotary table (19) drives the second transmission shaft (18) to rotate, the second transmission shaft (18) can stably drive the lead screw (20) to rotate through the limiting guide of the rotary block (17), the moving block (21) on the lead screw (20) moves, the moving block (21) cannot move through the limiting of the first push rod (22) and the second push rod (24), the moving block (21) moves upwards, the moving block (21) extrudes the first push rod (22) and the second push rod (24), the first push rod (22) and the second push rod (24) move oppositely, the purpose of pushing the connecting block (23) to move outwards is achieved, the pressing plate (25) on the connecting block (23) indirectly extrudes the inner wall of the groove, and the screening machine is fixed;
step three: when the screening machine works, the support (1) can vibrate due to the vibration of the second filter screen (6), so that the support (1) moves downwards, the second cavity in the support (1) pushes the sliding block (31) to move downwards, the sliding block (31) moves towards two sides under the support of the pressing rod (30), the sliding block (31) extrudes the third spring (32), kinetic energy is stored, the third spring (32) extrudes the cushion pad (33), and meanwhile, the second spring (29) between the second cavity and the connecting rod (28) is compressed, so that the impact in the vertical direction is buffered, the collision between the support (1) and the ground is reduced, the screening machine is enabled not to be damaged easily, and the operation is completed.
CN202011056942.3A 2020-09-30 2020-09-30 Air screen type screening machine for screening rice seeds and using method thereof Active CN112058667B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT8025387A0 (en) * 1980-10-16 1980-10-16 Adriano Barbieri EQUIPMENT FOR BUTTERING, SELECTING AND CLASSIFYING GRANULAR PRODUCTS IN GENERAL.
CN108146854A (en) * 2017-11-13 2018-06-12 雷文彬 A kind of hardware is used to arrange the nut case placed
CN110258541A (en) * 2019-06-27 2019-09-20 浙江海洋大学 A kind of reinforced soft soil ground structure and its reinforcement means
CN210546378U (en) * 2019-10-04 2020-05-19 福建超大现代种业有限公司 Water spinach seed wind-force screening installation
CN211396062U (en) * 2019-12-12 2020-09-01 黄晨 Civil engineering antidetonation additional strengthening
CN211463915U (en) * 2019-12-20 2020-09-11 普洱云极营养品开发有限公司 Low-temperature airflow impurity removing device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT8025387A0 (en) * 1980-10-16 1980-10-16 Adriano Barbieri EQUIPMENT FOR BUTTERING, SELECTING AND CLASSIFYING GRANULAR PRODUCTS IN GENERAL.
CN108146854A (en) * 2017-11-13 2018-06-12 雷文彬 A kind of hardware is used to arrange the nut case placed
CN110258541A (en) * 2019-06-27 2019-09-20 浙江海洋大学 A kind of reinforced soft soil ground structure and its reinforcement means
CN210546378U (en) * 2019-10-04 2020-05-19 福建超大现代种业有限公司 Water spinach seed wind-force screening installation
CN211396062U (en) * 2019-12-12 2020-09-01 黄晨 Civil engineering antidetonation additional strengthening
CN211463915U (en) * 2019-12-20 2020-09-11 普洱云极营养品开发有限公司 Low-temperature airflow impurity removing device

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