CN112138994A - Fine sand screening device capable of automatically discharging coarse sand - Google Patents
Fine sand screening device capable of automatically discharging coarse sand Download PDFInfo
- Publication number
- CN112138994A CN112138994A CN202010884661.0A CN202010884661A CN112138994A CN 112138994 A CN112138994 A CN 112138994A CN 202010884661 A CN202010884661 A CN 202010884661A CN 112138994 A CN112138994 A CN 112138994A
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- arc
- rotating shaft
- cylindrical shell
- gear
- sliding block
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING 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
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
- B07B1/282—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens their jigging movement being a closed or open curvilinear path in a plane perpendicular to the plane of the screen and parrallel or transverse to the direction of conveyance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING 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
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING 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
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING 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
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING 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
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/50—Cleaning
- B07B1/54—Cleaning with beating devices
Abstract
The invention discloses a fine sand screening device capable of automatically discharging coarse sand, which comprises a main body unit and a screening unit, wherein the main body unit comprises a cylindrical shell, a fixing plate, support legs, a first discharging pipe, a second discharging pipe, a rectangular shell, a fixing block and a hopper, the fixing plate is vertically arranged on two sides of the cylindrical shell, the support legs are uniformly arranged at the bottom of the fixing plate, the first discharging pipe is arranged at the bottom of the cylindrical shell, the second discharging pipe is obliquely arranged on the outer side of the cylindrical shell between the first fixing plate and the first discharging pipe on the left side, the rectangular shell is vertically arranged at the top of the cylindrical shell, an adjusting cavity and a feeding cavity are respectively arranged in the rectangular shell from left to right, and the adjusting cavity is communicated with the feeding cavity. When the screen is screened, the hitting balls are continuously knocked on the screen, and the vibrating spring is arranged between the screen and the limiting block, so that the screen is continuously vibrated, and the screen is prevented from being blocked by sand during screening to influence the screening efficiency.
Description
Technical Field
The invention relates to the technical field of screening, in particular to a fine sand screening device capable of automatically discharging coarse sand.
Background
The sand is an essential basic raw material in the field of construction, various coarse sands and large impurities such as broken stones, garbage and the like exist in the sand, sand grains in the sand are also classified into different grades, the purposes are different, and the required sand grain size grades are different. Therefore, the sand needs to be screened before it can be used. A sand screening device, also known as a dry land sand screening boat and a sand-stone separator, is a sand-stone separation device suitable for riverways, reservoirs, coal yards and buildings, and is divided into a drum-type sand screening machine, a washing drum-type sand screening machine, a vibrating screen type sand screening machine and the like. The sand screening machine adopts a horizontally arranged roller screen cylinder according to the working principle of manually screening sand by using an inclined screen, and ensures that material flows can continuously roller screen for more than five circles among a plurality of circles of internal spiral blades in the screen cylinder, thereby enabling sand materials to be repeatedly rolled and fully separated. Sand and stone are one of the necessary materials for buildings, so the quality of sand influences the safety of the buildings, and therefore, the screening of the sand is also extremely important. But current screening sand device can't be automatic will carry out remaining coarse sand after the fine sand screening and discharge, needs the manual work to arrange husky, and during the use, it is great to consume the manpower to current screening plant screen cloth blocks up easily, thereby causes the phenomenon that the screening effect is poor, and inconvenient user uses screening plant, has reduced screening plant's practicality.
Disclosure of Invention
The present invention has been made to solve the above-mentioned problems occurring in the prior art, and an object of the present invention is to provide a fine sand screening apparatus capable of automatically discharging coarse sand.
In order to achieve the purpose, the invention provides the following technical scheme: a fine sand screening device capable of automatically discharging coarse sand comprises a main body unit and a screening unit, wherein the main body unit comprises a cylindrical shell, a fixing plate, support legs, a first discharging pipe, a second discharging pipe, a rectangular shell, a fixing block and a hopper, the fixing plate is vertically arranged on two sides of the cylindrical shell, the support legs are uniformly arranged at the bottom of the fixing plate, the first discharging pipe is arranged at the bottom of the cylindrical shell, the second discharging pipe is obliquely arranged on the outer side of the cylindrical shell between the left fixing plate and the first discharging pipe, the rectangular shell is vertically arranged at the top of the cylindrical shell, an adjusting cavity and a feeding cavity are respectively arranged in the rectangular shell from left to right, the adjusting cavity is communicated with the feeding cavity and the interior of the cylindrical shell, the fixing blocks are arranged on two sides of the bottom end of the adjusting cavity, the hopper is, a feeding hole is formed in the side wall of the rectangular shell at the bottom end of the inner side of the hopper in a penetrating mode;
the screening unit comprises a screening part, a reciprocating driving part and an interval driving part, the screening part comprises a clip-shaped frame, a fixed shaft, a limiting block, a screen, a vibrating spring, a rotating rod, a connecting rod, a hitting ball, a first arc baffle and a second arc baffle, the clip-shaped frame is obliquely arranged inside the cylindrical shell, the clip-shaped frame is matched with the cylindrical shell, the middle positions of two sides of the clip-shaped frame are provided with the fixed shaft, the outer side of the fixed shaft is embedded in the side wall of the circle center position of the cylindrical shell through a bearing, two ends of the inner side of the clip-shaped frame are provided with the limiting blocks, the screen is arranged above the limiting blocks in a sliding manner, the vibrating spring is evenly arranged between the screen and the limiting blocks, two inner side edges of the clip-shaped frame below the screen are evenly provided with movable holes, and the rotating rods are evenly arranged between, the outer side of the rotating rod is fixedly connected with a hitting ball through a connecting rod along the length direction of the rotating rod, the bottom of one end, close to the discharge pipe II, of the square-shaped frame is provided with a first arc-shaped baffle plate, and the top of one end, far away from the first arc-shaped baffle plate, of the square-shaped frame is provided with a second arc-shaped baffle plate;
the reciprocating driving piece comprises a sliding block, a reset spring, hinge rods, a motor, a first rotating shaft, a first gear and a first arc-shaped lug, the sliding block is arranged in the adjusting cavity in a sliding mode, the reset spring is uniformly arranged between the two ends of the sliding block and the fixed block, the hinge rods are hinged to the two sides of the bottom of the sliding block, which are close to one end of the feeding cavity, the free ends of the hinge rods are hinged to the top of a square-shaped frame, which is deviated to one side of the discharging pipe, of the fixed shaft, the two hinge rods are parallel to each other, the motor is fixed on the outer side wall of the rectangular shell above the sliding block, the output end of the motor is fixedly connected with the first rotating shaft, the free end of the first rotating shaft extends to the inside of the;
the interval driving piece includes axis of rotation two, gear two, arc lug two and circular fender charging tray, run through the bearing between the regulation chamber directly over the gear one and the feeding chamber and be provided with axis of rotation two, the one end of axis of rotation two extends to gear one position department and is provided with gear two, and gear two and gear intermeshing, is located two outsides of axis of rotation of regulation intracavity portion are provided with arc lug two, the other end of axis of rotation two extends to the inside wall position fixedly connected with circular fender charging tray that the feeding chamber is close to the hopper, arc lug two is provided with the arc opening along the circular fender charging tray border position department of anticlockwise one side.
Preferably, one third of the radius of the second gear is larger than the radius of the first gear.
Preferably, the bottom of the hopper inclines towards the feed inlet side.
Preferably, the shortest distance between the first rotating shaft and the first sliding block is smaller than the length of the first arc-shaped projection.
Preferably, the shortest distance between the second rotating shaft and the sliding block is smaller than the length of the second arc-shaped projection, and the difference between the second arc-shaped projection and the shortest distances between the second rotating shaft and the sliding block is larger than the difference between the first arc-shaped projection and the shortest distances between the first rotating shaft and the sliding block.
Preferably, the material of dwang and connecting rod is plastics, the material of hitting the ball is the metal.
Preferably, one end of the clip frame close to the arc-shaped baffle is lower than the other end of the clip frame in the initial state of the clip frame.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention is characterized in that a circle-shaped frame matched with a cylindrical shell is hinged at the middle position in the cylindrical shell, a screen is arranged at the inner side of the circle-shaped frame, two sides of the bottom of a sliding block, which are close to one end of a feeding cavity, are hinged with hinge rods, the free ends of the hinge rods extend to be hinged with the top of the circle-shaped frame, which is biased to one side of a discharging pipe, of a fixed shaft, a motor is fixed on the outer side wall of a rectangular shell above the sliding block, the output end of the motor is fixedly connected with a first rotating shaft, and an arc-shaped lug I is arranged on the outer side of the first rotating shaft, when the motor rotates anticlockwise to drive the first rotating shaft to rotate, the first rotating shaft rotates to enable the first arc-shaped lug I on the outer side to rotate around the first rotating shaft, because the shortest distance between the first rotating shaft and the, and when the sliding block moves down, make back shape frame one end to discharging pipe lopsidedness through the articulated mast, when arc lug one moves to other positions of pivot department round pivot one, receive reset spring's effort sliding block rebound, make back shape frame normal position that resets through the articulated mast, when the output of motor rotates promptly, can drive back shape frame both ends and constantly deflect and make the sand that is located back shape frame inboard screen cloth about constantly, the sand is controlling the in-process, fine sand can get into circular screening chamber bottom through the aperture of screen cloth and discharge from discharging pipe one, coarse sand and bold impurity can be stayed the top at the screen cloth, because the sand is constantly moving about at the screen cloth top and is rolled, fine sand screening efficiency has been improved.
(2) In the invention, a second rotating shaft is arranged between an adjusting cavity right above a first gear and a feeding cavity in a penetrating way through a bearing, one end of the second rotating shaft extends to the position of the first gear and is provided with a second gear which is mutually meshed with the first gear, an arc-shaped lug is arranged on the outer side of the second rotating shaft positioned in the adjusting cavity, the other end of the second rotating shaft extends to the position of the feeding cavity close to the inner side wall of a hopper and is fixedly connected with a circular material blocking disc, and an arc-shaped opening is arranged at the edge position of the circular material blocking disc on one side of the counterclockwise direction of the second arc-shaped lug, when the output end of a motor drives the first rotating shaft to rotate anticlockwise, the first gear and the second gear are matched to drive the second rotating shaft to rotate clockwise, and when the second rotating shaft rotates clockwise, the second arc-shaped lug on the outer side of the, therefore, when the rotating shaft drives the arc-shaped convex block to rotate for a plurality of circles, the rotating shaft drives the arc-shaped convex block to rotate for a circle, when the rotating shaft drives the arc-shaped convex block to rotate for a plurality of circles, the shortest distance between the rotating shaft and the sliding block is less than the length of the arc-shaped convex block, and the difference between the shortest distances between the arc-shaped convex block and the rotating shaft is greater than the difference between the shortest distances between the arc-shaped convex block and the rotating shaft, the sliding block, the rotating shaft and the sliding block, therefore, the arc-shaped convex block can push the sliding block to move downwards for more distances, one end of the rectangular frame is moved to the bottom end of the discharge pipe through the hinged rod, at the moment, under the action of gravity, coarse sand and large impurities can be discharged from the discharge pipe to realize the automatic discharging function, and when the rotating shaft drives the arc-shaped convex block to continue to rotate, under the action, the sliding block moves upwards, when the sliding block moves upwards to enable one end of the square frame to move to a position above the discharge pipe II through the hinge rod, the arc-shaped opening of the circular material baffle plate at one end of the rotating shaft II moves to a discharge port, and then sand inside the hopper enters the screen inside the cylindrical shell from the discharge port, so that an automatic feeding function is realized.
(3) According to the invention, the two ends of the inner side of the square-shaped frame are respectively provided with the limiting block, the screen is arranged on the inner side of the square-shaped frame above the limiting blocks in a sliding manner, the vibrating springs are uniformly arranged between the screen and the limiting blocks, the movable holes are uniformly arranged on the two inner sides of the square-shaped frame below the screen, the rotating rods are uniformly arranged between the two corresponding movable holes, the outer sides of the rotating rods are fixedly connected with the hitting ball through the connecting rods along the length direction of the rotating rods, when the square-shaped frame deflects left and right during application, the hitting ball can be driven to deflect left and right, the movable rods can rotate under the action of inertia, the hitting ball is continuously hit on the screen, and the vibrating springs are arranged between the screen and the limiting blocks, so that the screen is continuously vibrated, and the screen is prevented.
Drawings
FIG. 1 is a schematic view of the internal structure of the frame of the present invention
FIG. 2 is a schematic view of a first state structure of the present invention;
FIG. 3 is a structural diagram illustrating a second state of the present invention;
FIG. 4 is a structural diagram illustrating a third state of the present invention;
FIG. 5 is a structural diagram illustrating a fourth state of the present invention;
FIG. 6 is a side view of the second arc-shaped baffle and the circular material blocking tray of the present invention in the fourth state.
In the figure: 1. a first discharge pipe; 2. a support leg; 3. a fixing plate; 4. a second arc-shaped baffle plate; 41. a first arc-shaped baffle plate; 5. a cylindrical housing; 6. a hinged lever; 7. a return spring; 8. a hopper; 9. a feed inlet; 10. a circular material blocking plate; 101. an arc-shaped opening; 11. a second rotating shaft; 12. a feed cavity; 13. a slider; 14. a second arc-shaped bump; 15. a second gear; 16. a rectangular housing; 17. an adjustment chamber; 18. a first arc-shaped bump; 19. a first gear; 20. rotating a first shaft; 21. a motor; 22. a fixed block; 23. a frame in a shape of a Chinese character 'hui'; 24. a discharge pipe II; 25. screening a screen; 26. a fixed shaft; 27. rotating the rod; 28. a movable hole; 29. hitting a ball; 30. a connecting rod; 31. a vibration spring; 32. and a limiting block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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.
Referring to fig. 1-6, an embodiment of the present invention is shown: a fine sand screening device capable of automatically discharging coarse sand comprises a main body unit and a screening unit, wherein the main body unit comprises a cylindrical shell 5, a fixing plate 3, support legs 2, a discharge pipe I1, a discharge pipe II 24, a rectangular shell 16, a fixing block 22 and a hopper 8, the fixing plate 3 is vertically arranged on two sides of the cylindrical shell 5, the support legs 2 are uniformly arranged at the bottom of the fixing plate 3, the discharge pipe I1 is arranged at the bottom of the cylindrical shell 5, the discharge pipe II 24 is obliquely arranged on the outer side of the cylindrical shell 5 between the fixing plate 3 and the discharge pipe I1 on the left side, the rectangular shell 16 is vertically arranged at the top of the cylindrical shell 5, an adjusting cavity 17 and a feeding cavity 12 are respectively arranged in the rectangular shell 16 from left to right, the adjusting cavity 17 is communicated with the feeding cavity 12 and the inside of the cylindrical shell 5, the fixing, a hopper 8 is arranged on one side of the rectangular shell 16 close to the feeding cavity 12, and a feeding hole 9 is arranged on the side wall of the rectangular shell 16 at the bottom end of the inner side of the hopper 8 in a penetrating manner;
the screening unit comprises a screening part, a reciprocating driving part and an interval driving part, the screening part comprises a clip-shaped frame 23, a fixed shaft 26, a limiting block 32, a screen mesh 25, a vibration spring 31, a rotating rod 27, a connecting rod 30, a hitting ball 29, a first arc baffle 41 and a second arc baffle 4, the clip-shaped frame 23 is obliquely arranged inside a cylindrical shell 5, the clip-shaped frame 23 is matched with the cylindrical shell 5, the fixed shaft 26 is arranged at the middle position of the two sides of the clip-shaped frame 23, the outer side of the fixed shaft 26 is embedded in the side wall of the circle center position of the cylindrical shell 5 through a bearing, the limiting blocks 32 are arranged at the two ends of the inner side of the clip-shaped frame 23, the screen mesh 25 is arranged on the inner side of the clip-shaped frame 23 above the limiting blocks 32 in a sliding manner, the vibration spring 31 is uniformly arranged between the screen mesh, a rotating rod 27 is uniformly arranged between the two corresponding movable holes 28, the outer side of the rotating rod 27 is fixedly connected with a striking ball 29 through a connecting rod 30 along the length direction of the rotating rod, a first arc baffle 41 is arranged at the bottom of one end, close to the discharge pipe II 24, of the clip frame 23, and a second arc baffle 4 is arranged at the top of one end, far away from the first arc baffle 41, of the clip frame 23;
the reciprocating driving piece comprises a sliding block 13, a return spring 7, hinge rods 6, a motor 21, a first rotating shaft 20, a first gear 19 and a first arc-shaped lug 18, the sliding block 13 is arranged in an adjusting cavity 17 in a sliding mode, the return spring 7 is uniformly arranged between two ends of the sliding block 13 and a fixed block 22, two sides of one end, close to one end of a feeding cavity 12, of the bottom of the sliding block 13 are hinged with the hinge rods 6, the free ends of the hinge rods 6 extend to be hinged with the top of a clip frame 23, which is deviated to one side of a discharging pipe 24, of a fixed shaft 26, the two hinge rods 6 are parallel to each other, the motor 21 is fixed on the outer side wall of a rectangular shell 16 above the sliding block 13, the output end of the motor 21 is fixedly connected with the first rotating shaft 20, the free ends of the first rotating shaft 20 extend;
the interval driving part comprises a second rotating shaft 11, a second gear 15, a second arc-shaped lug 14 and a circular material blocking disc 10, the second rotating shaft 11 penetrates through a position between an adjusting cavity 17 and a feeding cavity 12 right above the first gear 19 through a bearing, the second gear 15 is arranged at the position, extending to the first gear 19, of one end of the second rotating shaft 11, the second gear 15 is meshed with the first gear 19, the second arc-shaped lug 14 is arranged on the outer side of the second rotating shaft 11 positioned in the adjusting cavity 17, the other end of the second rotating shaft 11 extends to the position, close to the inner side wall of the hopper 8, of the feeding cavity 12, the circular material blocking disc 10 is fixedly connected with the position, extending to the feeding cavity 12, of the other end of the second rotating shaft 11, an arc-shaped opening 101 is formed in the edge position of the circular material blocking disc 10 on one side in the anticlockwise direction of the second arc-shaped lug 14, one, the shortest distance between the second rotating shaft 11 and the second sliding block 13 is smaller than the length of the second arc-shaped projection 14, the difference between the second arc-shaped projection 14 and the second rotating shaft 11 and the difference between the shortest distances between the second arc-shaped projection 14 and the second rotating shaft 13 are larger than the difference between the first arc-shaped projection 18 and the shortest distances between the first rotating shaft 20 and the second sliding block 13, the rotating rod 27 and the connecting rod 30 are made of plastics, the hitting ball 29 is made of metal, and one end, close to the first arc-shaped baffle 4, of the clip frame 23 in the initial state of the clip frame 23 is lower.
The working principle is as follows: when the sand screen is used, the motor 21 rotates anticlockwise to drive the rotating shaft I20 to rotate, the rotating shaft I20 rotates to enable the arc-shaped convex block I18 on the outer side to rotate around the rotating shaft I20 continuously, because the shortest distance between the rotating shaft I20 and the sliding block I13 is smaller than the length of the arc-shaped convex block I18, when the arc-shaped convex block I18 moves to the bottom of the rotating shaft I20 around the rotating shaft I20, the sliding block I13 is pushed to move downwards, and when the sliding block I13 moves downwards, one end of the clip-shaped frame 23 is inclined towards one side of the discharge pipe II 24 through the hinge rod 6 (as shown in figure 3), when the arc-shaped convex block I18 moves to other positions of the rotating shaft I20 around the rotating shaft I20, the sliding block I13 moves upwards under the action force of the return spring 7, the clip-shaped frame 23 is reset through the hinge rod 6 (as shown in figure 2), namely, when the output end of the motor, in the process of moving fine sand left and right, the fine sand enters the bottom of the circular shell 5 through the aperture of the screen and is discharged from the discharge pipe I1, coarse sand and large impurities are left at the top of the screen 28, the fine sand continuously moves left and right at the top of the screen 28 to roll, so that the screening efficiency of the fine sand is improved, meanwhile, when the output end of the motor 21 drives the rotating shaft I20 to rotate reversely, the gear I19 of the rotating shaft I20 is matched with the gear II 15 to drive the rotating shaft II 11 to rotate clockwise, and when the rotating shaft II 11 rotates clockwise, the arc-shaped lug II 14 on the outer side of the rotating shaft II is continuously rotated around the rotating shaft II 11, because the radius one third of the gear II 15 is larger than the radius of the gear I19, the rotating speed of the rotating shaft I20 is different from that of the rotating shaft II 11, namely, the rotating shaft I20 drives the arc-shaped lug I18 to rotate for, when the second rotating shaft 11 drives the second arc-shaped projection 20 to move to the lower part, because the shortest distance between the second rotating shaft 11 and the sliding block 13 is less than the length of the second arc-shaped projection 14, and the difference between the second arc-shaped projection 14 and the shortest distance between the second rotating shaft 11 and the sliding block 13 is greater than the difference between the first arc-shaped projection 18 and the shortest distance between the first rotating shaft 20 and the sliding block 13, at this time, the second arc-shaped projection 14 will push the sliding block 13 to move downwards for more distance, and one end of the clip frame 23 will move to the bottom end of the discharge pipe 24 through the hinge rod 6 (as shown in fig. 4), at this time, under the action of gravity, coarse sand and large impurities will be discharged from the discharge pipe 24, so as to realize the automatic discharge function, and when the second rotating shaft 11 drives the second arc-shaped projection 14 to continue to rotate, under the action of the return spring 7, the sliding block 13 moves upwards, and when the sliding block 13 moves upwards, arc opening 101 of the circular striker plate 10 of two 11 one ends of axis of rotation removes to discharge gate 9 position department, at this moment the inside fine sand of hopper will follow discharge gate 9 and get into on the inside screen cloth 25 of cylinder type casing 5 (as figure 5), realize the automatic feed function, and at the screening process, because the back shape frame 23 left right deflection, can drive and hit and beat ball 29 left right deflection, can make movable rod 27 take place to rotate under inertial effect, hit and beat ball 29 and constantly strike on screen cloth 25, and set up vibrating spring 31 between screen cloth 25 and the stopper 32, and then make screen cloth 25 constantly take place to vibrate, prevent when the screening, fine sand blocks up screen cloth 25, influence screening efficiency.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (7)
1. The fine sand screening device capable of automatically discharging coarse sand comprises a main body unit and a screening unit, and is characterized in that the main body unit comprises a cylindrical shell (5), a fixing plate (3), support legs (2), a first discharging tube (1), a second discharging tube (24), a rectangular shell (16), a fixing block (22) and a hopper (8), wherein the fixing plate (3) is vertically arranged on two sides of the cylindrical shell (5), the support legs (2) are uniformly arranged at the bottom of the fixing plate (3), the first discharging tube (1) is arranged at the bottom of the cylindrical shell (5), the second discharging tube (24) is obliquely arranged on the outer side of the cylindrical shell (5) between the left fixing plate (3) and the first discharging tube (1), the rectangular shell (16) is vertically arranged at the top of the cylindrical shell (5), and an adjusting cavity (17) and a feeding cavity (12) are respectively arranged inside the rectangular shell (16) from left to right, the adjusting cavity (17) is communicated with the feeding cavity (12) and the interior of the cylindrical shell (5), fixed blocks (22) are arranged on two sides of the bottom end of the adjusting cavity (17), a hopper (8) is arranged on one side, close to the feeding cavity (12), of the rectangular shell (16), and a feeding hole (9) is formed in the side wall of the rectangular shell (16) at the bottom end of the inner side of the hopper (8) in a penetrating mode;
the screening unit comprises a screening part, a reciprocating driving part and an interval driving part, the screening part comprises a clip frame (23), a fixed shaft (26), a limit block (32), a screen (25), a vibrating spring (31), a rotating rod (27), a connecting rod (30), a hitting ball (29), an arc baffle I (41) and an arc baffle II (4), the clip frame (23) is obliquely arranged inside a cylindrical shell (5), the clip frame (23) is matched with the cylindrical shell (5), the middle positions of two sides of the clip frame (23) are provided with the fixed shaft (26), the outer side of the fixed shaft (26) is embedded in the side wall of the circle center position of the cylindrical shell (5) through a bearing, the two inner ends of the clip frame (23) are provided with the limit blocks (32), and the inner side of the clip frame (23) above the limit blocks (32) is provided with the screen (25) in a sliding manner, vibrating springs (31) are uniformly arranged between the screen (25) and the limiting blocks (32), movable holes (28) are uniformly formed in two inner side edges of the square frame (23) below the screen (25), a rotating rod (27) is uniformly arranged between the two movable holes (28) which correspond to each other, a hitting ball (29) is fixedly connected to the outer side of the rotating rod (27) along the length direction of the rotating rod through a connecting rod (30), a first arc baffle (41) is arranged at the bottom of one end, close to the discharge pipe II (24), of the square frame (23), and a second arc baffle (4) is arranged at the top of one end, far away from the first arc baffle (41), of the square frame (23);
the reciprocating driving piece comprises a sliding block (13), a reset spring (7), a hinged rod (6), a motor (21), a first rotating shaft (20), a first gear (19) and a first arc-shaped convex block (18), the sliding block (13) is arranged inside an adjusting cavity (17) in a sliding mode, the reset spring (7) is uniformly arranged between the two ends of the sliding block (13) and a fixed block (22), the hinged rod (6) is hinged to the two sides of the bottom of the sliding block (13) close to one end of a feeding cavity (12), the free end of the hinged rod (6) extends to be hinged to the top of a square frame (23) on one side of a second discharging pipe (24) of a fixed shaft (26), the hinged rods (6) are parallel to each other, the outer side wall of a rectangular shell (16) above the sliding block (13) is fixed with the motor (21), and the first rotating shaft (20) is fixedly, the free end of the first rotating shaft (20) extends into the adjusting cavity (17) and is fixedly connected with a first gear (19), and an arc-shaped convex block (18) is arranged on the outer side of the first rotating shaft (20) positioned in the adjusting cavity (17);
the interval driving piece comprises a second rotating shaft (11), a second gear (15), a second arc-shaped lug (14) and a circular material blocking disc (10), a second rotating shaft (11) penetrates through the space between the adjusting cavity (17) right above the first gear (19) and the feeding cavity (12) through a bearing, a second gear (15) is arranged at the position where one end of the second rotating shaft (11) extends to the first gear (19), a second gear (15) is meshed with the first gear (19), a second arc-shaped lug (14) is arranged on the outer side of the second rotating shaft (11) positioned in the adjusting cavity (17), the other end of the second rotating shaft (11) extends to the position of the inner side wall of the feeding cavity (12) close to the hopper (8) and is fixedly connected with a circular material blocking plate (10), an arc-shaped opening (101) is formed in the edge position of the circular material blocking disc (10) on one side of the arc-shaped convex block II (14) in the anticlockwise direction.
2. A fine sand screening apparatus capable of automatically discharging coarse sand according to claim 1, wherein: one third of the radius of the second gear (15) is larger than that of the first gear (19).
3. A fine sand screening apparatus capable of automatically discharging coarse sand according to claim 1, wherein: the bottom of the hopper (8) inclines towards one side of the feeding hole (9).
4. A fine sand screening apparatus capable of automatically discharging coarse sand according to claim 1, wherein: the shortest distance between the first rotating shaft (20) and the sliding block (13) is smaller than the length of the first arc-shaped projection (18).
5. A fine sand screening apparatus with automatic coarse sand discharge as claimed in claim 4 wherein: the shortest distance between the second rotating shaft (11) and the sliding block (13) is smaller than the length of the second arc-shaped convex block (14), and the difference between the second arc-shaped convex block (14) and the shortest distances between the second rotating shaft (11) and the sliding block (13) is larger than the difference between the first arc-shaped convex block (18) and the shortest distances between the first rotating shaft (20) and the sliding block (13).
6. A fine sand screening apparatus capable of automatically discharging coarse sand according to claim 1, wherein: the material of dwang (27) and connecting rod (30) is plastics, the material of hitting ball (29) is metal.
7. A fine sand screening apparatus capable of automatically discharging coarse sand according to claim 1, wherein: one end, close to the arc baffle plate I (4), of the square frame (23) is lower than the other end of the square frame (23) in the initial state of the square frame (23).
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Effective date of registration: 20221208 Address after: 430,000 Old Brick Factory, Wulijie Street, Jiangxia District, Wuhan, Hubei Patentee after: Wuhan Shenghuaxin Building Materials Co.,Ltd. Address before: 362100 building d11-2b, junhetiandi, No. 626, Jianshe North Street, Luocheng Town, Hui'an County, Quanzhou City, Fujian Province Patentee before: Quanzhou Chuangzhi Industrial Design Service Co.,Ltd. |