CN113941493A

CN113941493A - Drum screen capable of efficiently screening

Info

Publication number: CN113941493A
Application number: CN202111360686.1A
Authority: CN
Inventors: 卓莉
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2022-01-18

Abstract

The invention relates to the technical field of building material machinery, and discloses a high-efficiency screening drum screen which comprises an outer box body, wherein a pressing wheel is fixedly arranged on the inner surface of the outer box body, a main body is movably arranged in an inner cavity of the outer box body, a lifting seat is obliquely and movably arranged in the main body, the lifting seat is in a door-shaped structure, limiting blocks are fixedly arranged on two sides of the lifting seat, and a sliding groove is formed in the main body. According to the invention, through the arrangement of the lifting seat and the impact rod, when the lifting seat moves inwards, gas in the gas cavity can be extruded into the gas storage chamber, in the process, the gas can push the rotating wheel to rotate, so that the main magnet attracts and repels the auxiliary magnet, the impact rod impacts the main body in a reciprocating manner, and further, materials attached to the inner surface of the screen cylinder are vibrated down due to the extrusion force between the materials and the humidity of the materials, so that the situation that the attached materials block the screen holes and block the movement of the materials, the screening operation of the materials is further blocked, and the screening effect of the materials is influenced is avoided.

Description

Drum screen capable of efficiently screening

Technical Field

The invention relates to the technical field of building material machinery, in particular to a drum screen for efficient screening.

Background

The building material machinery refers to mechanical equipment for producing building materials such as concrete, bricks and tiles, and the building material machinery is divided into stirring equipment, crushing equipment, screening equipment and the like according to purposes, wherein the drum screen belongs to one of the screening equipment which is widely applied.

Some current drum sieves are at the during operation, the gravel and sand that will wait to sieve are carried into the sieve section of thick bamboo of putting to one side, simultaneously, make a sieve section of thick bamboo rotatory, make gravel and sand overturn and roll at the internal surface of a sieve section of thick bamboo, in this in-process, the material that is less than the sieve mesh aperture passes the sieve mesh, and fall into the receipts device of below, wait for follow-up use, and the material that is greater than the sieve mesh aperture then moves down gradually along the sieve section of thick bamboo of slope, finally, discharge from the bin outlet of sieve section of thick bamboo bottom position, in above-mentioned process, because the sieve section of thick bamboo sets up for the slope, make between the material granule can push each other, the buried pressure, and then make some slightly be greater than the material in the sieve mesh of sieve aperture impress, and then block up the sieve mesh, make the material can't discharge from the sieve mesh, thereby reduce the screening effect of material.

Disclosure of Invention

Aiming at the defects of the existing drum screen in the use process in the background technology, the invention provides the drum screen for high-efficiency screening, which has the advantages of avoiding the blocking of the screen holes by materials and improving the screening effect of the materials, and solves the technical problems in the background technology.

The invention provides the following technical scheme: a roller screen for high-efficiency screening comprises an outer box body, wherein a pressing wheel is fixedly mounted on the inner surface of the outer box body, a main body is movably mounted in an inner cavity of the outer box body, a lifting seat is obliquely and movably mounted in the main body and is of a door-shaped structure, limiting blocks are fixedly mounted on two sides of the lifting seat, a sliding groove is formed in the main body and is movably connected with the sliding groove, a spring is mounted on the bottom surface of each limiting block, a mesh seat is movably mounted in the lifting seat, a connecting plate is fixedly mounted on one side of the mesh seat, the other end of the connecting plate is fixedly connected with the main body, a magnetic part is fixedly mounted in the lifting seat, a shell is movably mounted in the lifting seat, screen holes are formed in the shell, a groove seat is movably mounted in the shell, and an elastic part is fixedly mounted on the bottom surface of the groove seat, the movable mounting has the slider in the shifting chute of cell holder, the slider is the heteropolar setting of inhaling mutually with magnetic part, the medial surface movable mounting of slider has the elastic plate, the other end of elastic plate is connected with the bottom of cell holder medial surface.

Preferably, the connecting plate, the mesh seat and the lifting seat jointly enclose an air cavity, and air is filled in the air cavity.

Preferably, a rotating wheel is movably mounted inside the main body, a main magnet is fixedly mounted at a blade end of the rotating wheel, the main magnets are arranged in a magnetic pole alternating manner, and a cavity where the rotating wheel is located is communicated with the air cavity through a through hole.

Preferably, the inside movable mounting of main part has the striking rod, the body of rod end fixed mounting of striking rod has vice magnet, vice magnet and main magnet attract, repel in turn.

Preferably, an air storage chamber is arranged in the main body and is communicated with the cavity where the rotating wheel is located through another through hole.

The invention has the following beneficial effects:

1. according to the sieve drum, the slide block and the elastic plate are arranged, the slide block moves downwards in the slide groove seat through the inward movement of the lifting seat, the elastic plate is changed into the convex structure, and then materials blocked in the sieve holes are pushed into the inner cavity of the sieve drum through the convex structure, so that the sieve holes are prevented from being blocked by the materials and cannot be discharged from the sieve holes, and the sieving effect of the materials is reduced.

2. According to the invention, through the arrangement of the lifting seat and the impact rod, when the lifting seat moves inwards, gas in the gas cavity can be extruded into the gas storage chamber, in the process, the gas can push the rotating wheel to rotate, so that the main magnet attracts and repels the auxiliary magnet, the impact rod impacts the main body in a reciprocating manner, and further, materials attached to the inner surface of the screen cylinder are vibrated down due to the extrusion force between the materials and the humidity of the materials, so that the situation that the attached materials block the screen holes and block the movement of the materials, the screening operation of the materials is further blocked, and the screening effect of the materials is influenced is avoided.

3. According to the invention, through the arrangement of the lifting seat and the pressing wheel, the pressing wheel is contacted with the lifting seat, so that the lifting seat is extruded and moved inwards, the inner end of the lifting seat moving inwards protrudes out of the inner surface of the screen cylinder, and the downward moving material is blocked, so that the downward moving speed of the material is slowed down, the phenomenon that the material particles are pushed and extruded mutually due to the fact that the material moves downwards at an excessively high speed is avoided, the screening process is hasty, and the screening effect of the material is reduced.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is an enlarged view of a portion of the structure A of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the internal structure of the screen cylinder according to the present invention;

FIG. 4 is an enlarged view of a portion of the structure shown at B in FIG. 3 according to the present invention;

FIG. 5 is a schematic side view of the lifting base of the present invention;

FIG. 6 is a schematic view of the initial state of the structural elastic plate of the present invention;

FIG. 7 is a schematic view of the structural elastic plate deformation state of the present invention;

FIG. 8 is a schematic view of the structure of the present invention showing the inward movement of the elastic plate;

FIG. 9 is a schematic view of the lifting base of the present invention.

In the figure: 1. an outer case; 2. a pinch roller; 3. a screen cylinder; 30. a main body; 31. a lifting seat; 32. a limiting block; 33. a chute; 34. a mesh seat; 340. a housing; 341. screening holes; 342. a slot seat; 343. an elastic member; 344. a slider; 345. an elastic plate; 35. a connecting plate; 36. an air cavity; 37. a magnetic member; 38. an air storage chamber; 4. a rotating wheel; 5. a main magnet; 6. a striker bar; 7. a secondary magnet.

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. 3 and 6, a drum screen for high-efficiency screening includes an outer box 1, a pressing wheel 2 fixedly mounted on an inner surface of the outer box 1, a screen drum 3 movably mounted in an inner cavity of the outer box 1, the screen drum 3 including a main body 30, a lifting seat 31, a stopper 32, a sliding groove 33, a mesh seat 34, a connecting plate 35, an air cavity 36, a magnetic member 37 and an air storage chamber 38, the main body 30 movably mounted in the inner cavity of the outer box 1, the lifting seat 31 obliquely and slidably mounted in the main body 30, the lifting seat 31 having a door-shaped structure, the stoppers 32 fixedly mounted on both sides of the lifting seat 31, the sliding grooves 33 formed in both sides of the lifting seat 31 in the main body 30, the stoppers 32 slidably connected to the sliding groove 33, the bottom surface of the stoppers 32 connected to a lower surface of the sliding groove 33 by a spring, the mesh seat 34 movably mounted in the lifting seat 31, the connecting plate 35 fixedly mounted on one side of the mesh seat 34, the other end of the connecting plate 35 is fixedly connected with the main body 30, a magnetic part 37 is fixedly installed at a position, located on one side of the mesh seat 34, inside the lifting seat 31, the mesh seat 34 is composed of a shell 340, a mesh hole 341, a groove seat 342, an elastic part 343, a sliding block 344 and an elastic plate 345, the shell 340 is movably installed inside the lifting seat 31, the inside of the shell 340 is longitudinally penetrated and provided with the mesh hole 341, the position, located on one side of the mesh hole 341, inside the shell 340 is slidably provided with the groove seat 342, the bottom surface of the groove seat 342 is fixedly provided with the elastic part 343, the other end of the elastic part 343 is connected with the bottom surface of a cavity where the groove seat 342 is located, the sliding block 344 is slidably installed in a moving groove of the groove seat 342, the sliding block 344 and the magnetic part 37 are arranged in a heteropolar attraction manner, the elastic plate 345 is movably installed on the inner side surface of the sliding block 344, and the other end of the elastic plate 345 is connected with the bottom end of the inner side surface of the groove seat 342;

referring to fig. 6-8, when the material is rolled by the rotation of the screen cylinder 3, the main body 30 drives the lifting seat 31 to rotate synchronously, so that the upper surface of the lifting seat 31 gradually contacts with the pressing wheel 2 and is pressed by the pressing wheel 2, the lifting seat 31 moves inwards relative to the main body 30, and further drives the magnetic member 37 to move inwards synchronously, so that the slider 344 is driven by the magnetic attraction force to move downwards, and the slot seat 342 is kept stationary by the elastic force of the elastic member 343 due to the movement of the slider 344, so that the elastic plate 345 deforms to form a convex structure, and then, as the lifting seat 31 moves inwards continuously, the slider 344 pushes the slot seat 342 to move downwards and compresses the elastic member 343, so that the convex structure moves from outside to inside the screen hole 341, thereby pushing the material blocked inside the screen hole 341 and pushing the material into the inner cavity of the screen cylinder 3, thereby preventing the material from blocking the screen hole 341, make it unable from sieve mesh 341 discharges to reduce the screening effect of material, simultaneously, at the in-process of the inside removal of lift seat 31, its inner end can be at the internal surface protrusion of a sieve section of thick bamboo 3, and then stop the material that moves down in the sieve section of thick bamboo 3 of inclination, thereby slow down the speed that moves down of material, avoid because the material moves down the speed too fast, lead to pushing each other between the material granule, make the screening process in a hurry, thereby reduce the screening effect of material.

Referring to fig. 4, the upper surface of the connecting plate 35, the outer side surface of the mesh seat 34 and the lifting seat 31 together enclose an air cavity 36, and the air cavity 36 is filled with air, so that when the lifting seat 31 moves inward, the air in the air cavity 36 is squeezed, and the air enters a subsequent air storage mechanism, thereby providing a power source for a structure for subsequent processing of attached materials, and the above functions can be smoothly realized.

Please refer to fig. 4, a position inside the main body 30 on one side of the lifting seat 31 is slidably mounted with a rotating wheel 4, a blade end of the rotating wheel 4 is fixedly mounted with a main magnet 5, the main magnet 5 is arranged on the blade end for magnetic pole alternate arrangement, a cavity where the rotating wheel 4 is located is communicated with the air cavity 36 through a through hole, when the air in the air cavity 36 is extruded by the lifting seat 31, the air enters the rotating wheel 4 through the through hole, and further the rotating wheel 4 is pushed to rotate, so that the main magnets 5 of different magnetic poles can be alternately close to the auxiliary magnets 7, and further the auxiliary magnets 7 are alternately subjected to magnetic repulsion and magnetic attraction, so that the auxiliary magnets 7 can generate reciprocating motion, and the circulation of the subsequent vibration function is facilitated.

Please refer to fig. 4, a position inside the main body 30 on one side of the rotating wheel 4 is movably mounted with a striking rod 6, a rod body end of the striking rod 6 is fixedly mounted with an auxiliary magnet 7, the auxiliary magnet 7 and the main magnet 5 alternately attract and repel, when the auxiliary magnet 7 generates a reciprocating motion, the striking rod 6 is driven to rotate in a reciprocating manner, so that a striking head of the striking rod 6 reciprocally strikes the main body 30, thereby generating vibration, through the vibration, the material attached to the inner surface of the screen cylinder 3 is vibrated down due to the extrusion force between the materials and the material humidity, thereby avoiding the material from blocking the screen mesh 341 and obstructing the material from moving, further obstructing the screening operation of the material, and affecting the screening effect of the material.

Referring to fig. 3, a gas storage chamber 38 is disposed in the main body 30 above the rotating wheel 4, the gas storage chamber 38 is communicated with the cavity of the rotating wheel 4 through another through hole, the gas entering the cavity of the rotating wheel 4 passes through another through hole and then enters the gas storage chamber 38, and the gas is stored by the gas storage chamber 38 to facilitate subsequent recycling, meanwhile, when the main body 30 drives the lifting seat 31 to rotate to a position away from the pressing wheel 2, the lifting seat 31 is moved outwards to be reset by the elastic force of the spring, the moving lifting seat 31 causes a negative pressure to be generated in the gas cavity 36, the negative pressure causes the gas in the gas storage chamber 38 to be pumped back to the gas cavity 36 through the through hole and another through hole, and the gas is reset slowly due to the fact that the gas passes through the rotating wheel 4 and the through hole when being reset, thereby slowing down the resetting speed of the lifting seat 31, the inner end of the sieve drum can be in a protruding state for a certain time on the inner surface of the sieve drum 3, and then the sieving effect of the materials is improved.

The use method (working principle) of the invention is as follows:

when the lifting device works, firstly, the power source is made to drive the inclined screen drum 3 to rotate, then, sand and stone materials are conveyed into the screen drum 3, the materials entering the screen drum 3 are driven by the screen drum 3 to generate rolling motion, in the process, the materials smaller than the aperture of the screen aperture 341 pass through the screen aperture 341 and fall into the collecting device below for later use, the materials larger than the aperture of the screen aperture 341 gradually move downwards along the inclined screen drum 3, finally, the materials are discharged from the discharge port at the bottom of the screen drum 3, in the process that the screen drum 3 drives the materials to rotate, the lifting seat 31 synchronously rotates, the upper surface of the lifting seat is made to contact with the pressure wheel 2, then, along with the continuous rotation of the screen drum 3, the pressure wheel 2 is made to extrude the lifting seat 31, so that the lifting seat 31 moves inwards relative to the main body 30, and the limiting block 32 is driven to extrude the spring in the chute 33, so that the inner end of the lifting seat 31 gradually forms a bulge on the inner surface of the main body 30, meanwhile, the lifting seat 31 moving inwards extrudes the gas in the gas cavity 36, the gas enters the cavity where the rotating wheel 4 is located through the through hole, and further pushes the rotating wheel 4 to rotate, so that the primary magnet 5 at the blade end of the gas alternately attracts and repels the secondary magnet 7 inside the impact rod 6, and the impact rod 6 rotates in a reciprocating manner, so that the main body 30 is impacted in a reciprocating manner, and then the gas in the cavity where the rotating wheel 4 is located enters the gas storage chamber 38 through another through hole, in addition, the lifting seat 31 moving inwards drives the magnetic element 37 to move inwards synchronously, as the magnetic element 37 and the sliding block 344 attract each other, the magnetic element 37 moving inwards drives the sliding block 344 to move inwards, the sliding block 344 moving inwards extrudes the elastic plate 345, so that the elastic plate 345 is deformed into a convex structure, and then, along with the continuous inward movement of the lifting seat 31, the sliding block 344 contacts with the pushing groove seat 342 to move inwards, and compresses the elastic element 343, and then the above-mentioned protruding structure is made to move from outside to inside in the sieve mesh 341, thereby push the material blocked inside the sieve mesh 341 into the inner cavity of the sieve tube 3, then, along with the continued rotation of the sieve tube 3, the lifting seat 31 leaves the position of the pressure roller 2, so that the spring releases the elastic force, and then drives the lifting seat 31 to move outwards and reset, the lifting seat 31 moving outwards makes the air cavity 36 generate negative pressure, the negative pressure pumps the air in the air storage chamber 38 back into the air cavity 36 through the above-mentioned through hole, in this process, the air pushes the rotating wheel 4 again to rotate, and causes the impact rod 6 to impact the main body 30 again, at the same time, the lifting seat 31 that resets drives the sliding block 344 to move outwards, so that the elastic piece 343 releases the elastic force, and then drives the groove seat 342 to move outwards and reset synchronously, and finally, when the groove seat 342 resets to the initial position, the sliding block 344 continues to move outwards, so that the elastic plate 345 restores, which is a work cycle.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a drum sieve of high-efficient screening, includes outer box (1), its characterized in that: the inner surface of the outer box body (1) is fixedly provided with a pressing wheel (2), the inner cavity of the outer box body (1) is movably provided with a main body (30), the inner part of the main body (30) is obliquely and movably provided with a lifting seat (31), the lifting seat (31) is arranged in a door-shaped structure, two sides of the lifting seat (31) are fixedly provided with limit blocks (32), the inside of the main body (30) is provided with a sliding groove (33), the limit blocks (32) and the sliding groove (33) form a movable connection, the bottom surface of the limit blocks (32) is provided with a spring, the inner part of the lifting seat (31) is movably provided with a mesh seat (34), one side of the mesh seat (34) is fixedly provided with a connecting plate (35), the other end of the connecting plate (35) is fixedly connected with the main body (30), and the inner part of the lifting seat (31) is fixedly provided with a magnetic part (37), the inside movable mounting of lift seat (31) has casing (340), sieve mesh (341) have been seted up to the inside of casing (340), the inside movable mounting of casing (340) has groove seat (342), the bottom surface fixed mounting of groove seat (342) has elastic component (343), movable mounting has slider (344) in the removal groove of groove seat (342), slider (344) and magnetic component (37) are heteropolar attracting setting, the medial surface movable mounting of slider (344) has elastic plate (345), the other end and the bottom of groove seat (342) medial surface of elastic plate (345) are connected.

2. A high efficiency screening drum screen according to claim 1, wherein: the connecting plate (35), the mesh seat (34) and the lifting seat (31) jointly enclose an air cavity (36), and air is filled in the air cavity (36).

3. A high efficiency screening drum screen according to claim 1, wherein: the novel air compressor is characterized in that a rotating wheel (4) is movably mounted inside the main body (30), a main magnet (5) is fixedly mounted at a blade end of the rotating wheel (4), the main magnets (5) are arranged in a magnetic pole alternating mode, and a cavity where the rotating wheel (4) is located is communicated with the air cavity (36) through a through hole.

4. A high efficiency screening drum screen according to claim 1, wherein: the inside movable mounting of main part (30) has impact rod (6), the body of rod end fixed mounting of impact rod (6) has vice magnet (7), vice magnet (7) and main magnet (5) attract, repel in turn.

5. A high efficiency screening drum screen according to claim 1, wherein: an air storage chamber (38) is formed in the main body (30), and the air storage chamber (38) is communicated with a cavity where the rotating wheel (4) is located through another through hole.