CN118080328B - Screening device for concrete raw materials - Google Patents
Screening device for concrete raw materials Download PDFInfo
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- CN118080328B CN118080328B CN202410521037.2A CN202410521037A CN118080328B CN 118080328 B CN118080328 B CN 118080328B CN 202410521037 A CN202410521037 A CN 202410521037A CN 118080328 B CN118080328 B CN 118080328B
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- 238000012216 screening Methods 0.000 title claims abstract description 106
- 239000002994 raw material Substances 0.000 title claims abstract description 21
- 238000007790 scraping Methods 0.000 claims abstract description 36
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000004576 sand Substances 0.000 description 30
- 239000004575 stone Substances 0.000 description 26
- 230000000694 effects Effects 0.000 description 5
- 239000012615 aggregate Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000012237 artificial material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Combined Means For Separation Of Solids (AREA)
Abstract
The invention relates to the technical field of screening of concrete raw materials, and provides a screening device of concrete raw materials, which comprises a mounting seat, a feeding hopper arranged on the mounting seat, a screening assembly arranged on the mounting seat and a conveying assembly arranged in the mounting seat; the screening assembly comprises a driving assembly arranged on the mounting seat; the screening assembly further comprises a scraping member and a screening member; the scraping element is driven by the driving assembly to be movable in the screening element and rotatable 180 ° in the screening element with respect to the screening element; the screening element can be driven by the driving assembly to reciprocate relative to the feed hopper; the scraping piece comprises a mounting sleeve, a scraping piece body, ribs and protrusions; the mounting sleeve is hollow cylindrical with one end open and is mounted on the driving assembly; the scraping part body is in a circular ring shape, and the mounting sleeve is arranged along the radial direction of the scraping part body; the inner side of the scraping part body is provided with a plurality of ribs, and two adjacent ribs are mutually spaced to form a through hole; the upper and lower sides of the rib are respectively provided with a bulge.
Description
Technical Field
The invention relates to the technical field of screening of concrete raw materials, in particular to a screening device of concrete raw materials.
Background
The concrete is an artificial material formed by mixing cement, aggregate and water according to a certain proportion, wherein the cement reacts with the water to form hydration products, so that the concrete is hardened and solidified, and substances such as sand in the aggregate are added into the concrete as fillers, thereby increasing the volume of the concrete and providing strength and stability. In order to obtain sand in aggregate, it is generally necessary to manually excavate in sand beds, beaches and the like by using a machine, and the excavated sand and stones contain a large number of stones of different sizes, so that screening operation is required after the sand and stones are excavated, the sand and stones are passed through a screen, and the sand and stones in the sand and stones are separated from each other by vibration, so that the required sand can be obtained. However, during the screening process, stones in the sand tend to stick to the screen, resulting in low efficiency of subsequent screening; in addition, after the sand stone is stored for a long time, the condition that the sand stone is hardened into blocks easily occurs, so that sand in the plate blocks cannot pass through a screen, resource waste is caused, and the screening effect is poor.
Disclosure of Invention
In view of the above, the present invention provides a screening apparatus for concrete raw materials, which can solve or at least alleviate the above problems, so as to prevent stones in sand from being stuck on a screening member, and scatter the sand which is hardened into blocks, prevent waste of resources, and improve screening effect.
The technical scheme provided by the invention is as follows: the screening device for the concrete raw materials comprises a mounting seat, a feeding hopper, a screening assembly and a conveying assembly, wherein the feeding hopper is arranged on the mounting seat; the screening assembly comprises a driving assembly arranged on the mounting seat; the screening assembly further comprises a scraping member and a screening member; the scraper is driven by the driving assembly to be movable in the screening member and rotatable 180 ° in the screening member with respect to the screening member; the sifting member can be driven by the driving assembly to reciprocate relative to the feed hopper; the scraping piece comprises a mounting sleeve, a scraping piece body, ribs and protrusions; the mounting sleeve is hollow cylindrical with one end open and is mounted on the driving assembly; the scraping part body is annular, and the mounting sleeve is arranged along the radial direction of the scraping part body; the inner side of the scraping part body is provided with a plurality of ribs, and two adjacent ribs are mutually spaced to form a through hole; the upper side and the lower side of the rib are respectively provided with the bulges.
In some embodiments, the drive assembly includes a first rail, a second rail, a third rail, a cylinder, a drive seat, a rotating member, a driving member, and an elastic member; the second guide rail and the third guide rail are mounted on the upper side of the mounting seat, and the first guide rail is supported on the upper side of the second guide rail and the third guide rail; the cylinder is arranged on one side of the first guide rail; the driving seat is arranged on the output shaft of the air cylinder and is slidably arranged on the first guide rail; the rotating piece is rotatably arranged on the driving seat, and two ends of the rotating piece respectively protrude out of the driving seat; the driving piece is arranged at one end of the rotating piece protruding out of the driving seat, and the driving piece is arranged between the scraping piece and the driving seat; the elastic piece is connected between the driving seat and the rotating piece.
In some embodiments, the driving seat is a square body, and a first stop piece, a second stop piece and a first connecting column are arranged on the upper side of the driving seat, and the first stop piece, the second stop piece and the first connecting column are respectively perpendicular to the upper side of the driving seat.
In some embodiments, the rotor includes a rotor body, a shaft, an arm, and a second connecting post; the rotating piece body is cylindrical; the rotating shaft vertically extends downwards from the lower side of the rotating member body along the axial direction of the rotating member body; the support arm extends outwards from the peripheral side of the rotating member body along the radial direction of the rotating member body, and can be stopped by the first stopping piece or the second stopping piece when rotating to the first stopping piece or the second stopping piece; the two ends of the elastic piece are respectively connected to the first connecting column and the second connecting column.
In some embodiments, the driver includes a driver body, a first connecting arm, a second connecting arm, a first driver, and a second driver; the driving piece body is a sleeve with two open ends and is arranged on the rotating shaft; the first connecting arm and the second connecting arm extend outwards from the outer peripheral side of the driving piece body along the radial direction of the driving piece body respectively; the first driving part is arranged at one end of the first connecting arm far away from the driving piece body, and the second driving part is arranged at one end of the second connecting arm far away from the driving piece body.
In some embodiments, the angle between the first and second connecting arms is 120 °.
In some embodiments, the sifter includes a sifter body, a first mounting plate, and a second mounting plate; the screening part body is in a hollow column shape with two open ends, and a plurality of perforations are formed in the screening part body; the first mounting plate is arranged on one axial end of the screening piece body, which is adjacent to the feeding hopper, and the second mounting plate is arranged on the other axial end of the screening piece body, which is far away from the feeding hopper; a first mounting plate is movably mounted on the second rail and a second mounting plate is movably mounted on the third rail.
In some embodiments, an end of the scraper body of the scraper distal from the mounting sleeve is provided as a first planar portion; the screening piece body is provided with a first semicircular part, a second semicircular part which is arranged opposite to the first semicircular part, and a second plane part which is connected between the bottom ends of the first semicircular part and the second semicircular part; the second plane part is attached to the first plane part; when the screening member body moves relative to the feed hopper, the first semicircular portion or the second semicircular portion can be attached to the outer side of the scraping member body.
In some embodiments, the screening member body has an opening formed in an upper side thereof; one end of the opening, which is adjacent to the first mounting plate, is provided with a pushing part; the pushing part extends towards the second mounting plate to form a triangle, and two sides of the pushing part are respectively provided with a first inclined plane and a second inclined plane.
In some embodiments, a first stop portion and a second stop portion are respectively disposed on two sides of the opening of the sifter body, the first stop portion and the second stop portion are disposed opposite to each other, and the first stop portion and the second stop portion are respectively perpendicular to corresponding sides of the opening.
Compared with the prior art, the invention has the beneficial effects that:
1. The screening device for the concrete raw materials can effectively prevent stones from being blocked on the screening piece, scatter sand and stones which are hardened into blocks, prevent resource waste and improve the screening effect.
2. According to the screening device for the concrete raw materials, disclosed by the invention, the scraping piece is used for scraping the stone clamped on the screening piece, the falling speed of the sand and stone on the screening piece can be buffered, the path and time of the sand and stone passing through the screening piece are prolonged, the sand and stone which is hardened into blocks can be broken up, and the screening effect is improved.
3. The screening piece of the screening device for the concrete raw materials can vibrate under the action of the driving assembly, so that the screening speed of the screening piece is increased, and the working efficiency of screening is improved.
Drawings
Fig. 1 is a perspective view showing a screening apparatus for concrete raw materials according to an embodiment of the present invention.
Fig. 2 shows a perspective view of the concrete raw material screening apparatus shown in fig. 1 in another direction.
Fig. 3 shows an exploded view of a screening assembly of the screening apparatus for concrete raw material shown in fig. 1.
Fig. 4 shows an exploded view of a portion of the components of the screening assembly shown in fig. 3.
Fig. 5 shows a plan view of the scraper of the screening assembly shown in fig. 3.
Fig. 6 shows a perspective view of the drive member of the screening assembly shown in fig. 3.
Fig. 7 shows a perspective view of a screening member of the screening assembly shown in fig. 3.
Reference numerals illustrate: 1-a mounting base; 11-a base; 12-mounting posts; 13-a support bracket; 2-feeding hopper; 3-a screening component; 31-a drive assembly; 311-a first guide rail; 312-a second rail; 313-a third rail; 314-cylinder; 315-driving seat; 151-first stop; 152-a second stop; 153-first connection post; 316-rotating member; 161-a rotor body; 162-spindle; 163-arm; 164-a second connection post; 317-driving member; 171-a driver body; 172-a first drive section; 173-a second driving part; 174-first connecting arm; 175-a second connecting arm; 318-elastic member; 32-scraping element; 321-scraper body; 322-ribs; 323-through holes; 324-bump; 325-mounting sleeve; 326-a first planar portion; 33-screening pieces; 331-screening body; 381-first semicircle; 382-second semicircle; 383-a second planar portion; 332-a first mounting plate; 333-a second mounting plate; 334-opening; 335-a pushing portion; 351—a first incline; 352-second ramp; 336-a first stop; 337-a second stop; 4-a transfer assembly; 41-conveyor belt.
Detailed Description
The invention will be further described with reference to the drawings and the specific embodiments.
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present invention. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
In the present invention, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", etc. refer to an orientation or a positional relationship based on that shown in the drawings, and are merely relational terms, which are used for convenience in describing structural relationships of various components or elements of the present invention, and do not denote any one of the components or elements of the present invention, and are not to be construed as limiting the present invention.
In the present invention, terms such as "fixedly attached," "connected," "coupled," and the like are to be construed broadly and refer to either a fixed connection or an integral or removable connection; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms in the present invention can be determined according to circumstances by a person skilled in the relevant art or the art, and is not to be construed as limiting the present invention.
As shown in fig. 1 to 3, the screening apparatus for concrete raw materials according to an embodiment of the present invention includes a mounting base 1, a feed hopper 2 mounted on the mounting base 1, a screening assembly 3 mounted on the mounting base 1, and a conveying assembly 4 disposed in the mounting base 1. Sand and stones to be screened are guided from the feed hopper 2 into the screening assembly 3 for screening, the screened sand falls on the conveying assembly 4 and is conveyed into the collecting device, and the screened and separated stones are discharged from the screening assembly 3 through the mounting seat 1.
In this embodiment, the mounting base 1 includes a base 11, a mounting post 12, and a support bracket 13. Preferably, the base 11 is generally U-shaped and includes a bottom plate, and first and second side plates disposed on opposite sides of the bottom plate, respectively. In this embodiment, the bottom plate is provided with openings, from which sand delivered by the conveyor assembly 4 falls into the respective collecting device. Preferably, the conveyor assembly 4 includes a conveyor belt 41, and rollers supporting the conveyor belt 41, wherein the rollers are rotatably supported on the inner sides of the first and second side plates of the base 11. In this embodiment, the specific construction of the conveying assembly 4 may be any construction known in the art, and will not be described in detail herein. The upper sides of the first side plate and the second side plate of the base 11 are respectively provided with a plurality of mounting posts 12. The feed hopper 2 and the screening assembly 3 are both supported on mounting posts 12. Preferably, the distance between the feed hopper 2 and the bottom plate of the base 11 is larger than the distance between the screening assembly 3 and the bottom plate. The specific construction of the feed hopper 2 may also be as known in the art and will not be described in detail here. The support bracket 13 is arranged at one end of the base 11 remote from the feed hopper 2. The separated stones are screened out of the screening assembly 3 and discharged via said support brackets 13.
Referring also to fig. 1 to 4, the screening assembly 3 includes a driving assembly 31, a scraping member 32 and a screening member 33. The driving assembly 31 is mounted on the mounting post 12 of the mounting base 1, and includes a first guide rail 311, a second guide rail 312, a third guide rail 313, an air cylinder 314, a driving base 315, a rotating member 316, a driving member 317 and an elastic member 318. The second guide rail 312 and the third guide rail 313 are mounted on the upper side of the mounting post 12, and the first guide rail 311 is supported on the upper sides of the second guide rail 312 and the third guide rail 313. The cylinder 314 is installed on one side of the first rail 311. The driving seat 315 is mounted on the output shaft of the cylinder 314 and slidably mounted on the first rail 311. When the air cylinder 314 works, the output shaft of the air cylinder 314 drives the driving seat 315 to reciprocate on the first guide rail 311.
In this embodiment, the driving seat 315 is substantially square. The rotary member 316 is rotatably mounted on the driving seat 315. Both ends of the rotating member 316 protrude from the driving seat 315, respectively. Preferably, one end of the rotating member 316 protrudes from the upper side of the driving seat 315, and the other end of the rotating member 316 protrudes from the lower side of the driving seat 315. The elastic member 318 is connected between the driving seat 315 and the rotating member 316. The upper side of the driving seat 315 is provided with a first stopper 151, a second stopper 152, and a first connection column 153. The first stopper 151, the second stopper 152, and the first connection column 153 are perpendicular to the upper side of the driving seat 315, respectively. The first stopper 151, the second stopper 152, and the first connection post 153 are each substantially cylindrical. The first stopper 151 and the second stopper 152 are located at both sides of the rotation piece 316, respectively. Preferably, the first connection column 153 is disposed on an upper side of the driving seat 315 at an end remote from the cylinder 314. More preferably, the line between the centers of the first and second stoppers 151 and 152 is perpendicular to the line between the centers of the first connection post 153 and the rotator 316.
Preferably, the rotating member 316 includes a rotating member body 161, a rotating shaft 162, a support arm 163, and a second connecting post 164. The rotor body 161 is substantially cylindrical, and the rotation shaft 162 extends vertically downward from the lower side of the rotor body 161 along the axial direction of the rotor body 161. In the present embodiment, the rotating member body 161 is located on the upper side of the driving seat 315. The rotation shaft 162 passes through the driving seat 315 and protrudes from the underside of the driving seat 315. It is contemplated that the shaft 162 may be rotatably mounted in the drive housing 315 by mounting bearings. The arm 163 extends outward from the peripheral side of the rotor body 161 in the radial direction of the rotor body 161. The arm 163 of the rotating member 316 can be stopped by the first stopper 151 or the second stopper 152 when rotated to the first stopper 151 or the second stopper 152 to prevent the arm 163 from further rotating. The second connecting post 164 is disposed on an end of the arm 163 remote from the rotator body 161. The two ends of the elastic member 318 are connected to the first connecting post 153 and the second connecting post 164, respectively. In this embodiment, the elastic member 318 is a spring.
The driving member 317 and the scraping member 32 are both mounted on one end of the rotating shaft 162 of the rotating member 316 protruding from the driving seat 315, and the driving member 317 is interposed between the scraping member 32 and the driving seat 315. Referring to fig. 3, 4 and 6 together, the driving member 317 includes a driving member body 171, a first connection arm 174, a second connection arm 175, a first driving part 172 and a second driving part 173. In this embodiment, the driving member body 171 is a sleeve with two open ends, and is mounted on the rotating shaft 162. The first and second connection arms 174 and 175 extend outward in the radial direction of the driver body 171 from the outer peripheral side of the driver body 171, respectively. Preferably, the angle between the first connecting arm 174 and the second connecting arm 175 is 120 °. The first driving part 172 is disposed at an end of the first connecting arm 174 remote from the driver body 171, and the second driving part 173 is disposed at an end of the second connecting arm 175 remote from the driver body 171. In this embodiment, the first driving portion 172 and the second driving portion 173 respectively extend away from the driving seat 315 along the axial direction of the driving member body 171. Preferably, the first driving part 172 and the second driving part 173 are substantially cylindrical, respectively.
Referring to fig. 3, 4 and 5 together, the scraper 32 includes a mounting sleeve 325, a scraper body 321, ribs 322 and protrusions 324. The mounting sleeve 325 is generally hollow and cylindrical with an open end and is mounted on the axial end of the shaft 162 remote from the drive seat 315. The scraping element body 321 is substantially annular. Mounting sleeve 325 is disposed radially of scraper body 321. In the present embodiment, an end of scraper body 321 remote from mounting sleeve 325 is provided as first planar portion 326. The scraper body 321 is provided inside with a plurality of the ribs 322. Adjacent ribs 322 are spaced apart from each other to form through holes 323. Sand and stones smaller than the size of the through-hole 323 can pass through the through-hole 323 to prevent excessive accumulation of sand and stones on the scraper 32. Protrusions 324 are provided on both upper and lower sides of the rib 322, respectively. When sand, particularly hardened and agglomerated sand, falls onto the protrusions 324, it can be initially broken up by the protrusions 324. When the air cylinder 314 works, the output shaft of the air cylinder 314 drives the driving seat 315 to reciprocate along the first guide rail 311, the driving seat 315 drives the scraping member 32 to reciprocate through the rotating shaft 162 of the rotating member 316, and the driving member 317 cooperates with the screening member 33 to drive the rotating member 316 to rotate, so that the rotating shaft 162 drives the scraping member 32 to rotate.
Referring to fig. 3,4 and 7 together, the sifter 33 includes a sifter body 331, a first mounting plate 332 and a second mounting plate 333. The sifter body 331 is generally hollow and cylindrical with two open ends, the first mounting plate 332 is disposed on one axial end of the sifter body 331 adjacent to the feed hopper 2, and the second mounting plate 333 is disposed on the other axial end of the sifter body 331 far away from the feed hopper 2. The first mounting plate 332 is movably mounted on the second guide rail 312 by a slider, and the second mounting plate 333 is movably mounted on the third guide rail 313 by a slider. In this embodiment, the sifter body 331 is disposed obliquely. Specifically, the distance between one axial end of the sifter body 331 adjacent to the feed hopper 2 and the bottom plate of the base 11 is greater than the distance between the other axial end of the sifter body 331 remote from the feed hopper 2 and the bottom plate of the base 11. The screening member body 331 is provided with a plurality of perforations, and sand can pass through the perforations to fall onto the conveyor belt 41 of the conveyor assembly 4 when sand passes through the inner side of the screening member body 331.
In this embodiment, the sifter body 331 is provided with a first semicircular portion 381, a second semicircular portion 382 disposed opposite to the first semicircular portion 381, and a second planar portion 383 connected between the first semicircular portion 381 and the bottom end of the second semicircular portion 382. The second planar portion 383 is attached to the first planar portion 326 of the scraper 32. When the screen body 331 moves relative to the feed hopper 2, the first semicircular portion 381 or the second semicircular portion 382 can be fitted on the outer side of the scraper body 321 of the scraper 32.
An opening 334 is formed on the upper side of the sifter body 331, and the opening 334 is opposite to the second plane part 383. The driving assembly 31 can drive the scraping element 32 to reciprocate along the opening 334. The opening 334 is provided with a pushing portion 335 adjacent to one end of the first mounting plate 332. The pushing portion 335 extends toward the second mounting plate 333, and the pushing portion 335 has a substantially triangular shape, and two sides of the pushing portion 335 are respectively provided as a first inclined surface 351 and a second inclined surface 352. The first driving portion 172 of the driving member 317 can push against the first inclined surface 351, and the second driving portion 173 can push against the second inclined surface 352. When the first driving part 172 pushes against the first inclined surface 351, the sifter 33 can move in a first direction relative to the feed hopper 2, wherein the first direction is parallel to the extending direction of the second guide rail 312. When the second driving part 173 pushes against the second inclined surface 352, the sifter 33 can move in a second direction relative to the feed hopper 2, wherein the second direction is opposite to the first direction. Therefore, the screening piece 33 can vibrate under the action of the driving assembly 31, so that the screening speed of the screening piece 33 is increased, and the screening work efficiency is improved.
The two sides of the opening 334 of the sifter body 331 are respectively provided with a first stop portion 336 and a second stop portion 337, the first stop portion 336 and the second stop portion 337 are disposed opposite to each other, and the first stop portion 336 and the second stop portion 337 are respectively perpendicular to the corresponding sides of the opening 334. The first driving portion 172 of the driving member 317 can be stopped by the second stopping portion 337, so as to drive the driving member 317 to rotate 180 ° in the first rotation direction, so that the driving member 317 drives the rotating shaft 162 and the scraping member 32 to rotate in the first rotation direction. The second driving part 173 can be stopped by the first stopping part 336, so as to drive the driving member 317 to rotate 180 ° along the second rotation direction, so that the driving member 317 drives the rotating shaft 162 and the scraping member 32 to rotate along the second rotation direction, and the second rotation direction is opposite to the first rotation direction. Preferably, the first and second stop portions 336 and 337 are each spaced from an end of the opening 334 adjacent to the second mounting plate 333 by a distance equal to the diameter of the scraper body 321 of the scraper 32. The scraping part 32 moves reciprocally inside the screening part body 331 of the screening part 33 to scrape stones stuck on the screening part 33, and meanwhile, the falling speed of sand and stones on the screening part 33 can be buffered, and the distance and time of the sand and stones passing through the screening part 33 are prolonged; when the driving member 317 is adjacent to the first stop portion 336 or the second stop portion 337, the cooperation of the first stop portion 336 with the second driving portion 173 or the cooperation of the second stop portion 337 with the first driving portion 172 rotates the scraper 32 by 180 ° with respect to the sieving member 33, thereby discharging the stones blocked on the scraper 32, and being capable of further scattering the agglomerated stones while rotating, thereby improving the sieving effect.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The screening device for the concrete raw materials comprises a mounting seat, a feeding hopper, a screening assembly and a conveying assembly, wherein the feeding hopper is arranged on the mounting seat; the screening assembly comprises a driving assembly arranged on the mounting seat; the screening assembly is characterized by further comprising a scraping piece and a screening piece; the scraper is driven by the driving assembly to be movable in the screening member and rotatable 180 ° in the screening member with respect to the screening member; the sifting member can be driven by the driving assembly to reciprocate relative to the feed hopper; the scraping piece comprises a mounting sleeve, a scraping piece body, ribs and protrusions; the mounting sleeve is hollow cylindrical with one end open and is mounted on the driving assembly; the scraping part body is annular, and the mounting sleeve is arranged along the radial direction of the scraping part body; the inner side of the scraping part body is provided with a plurality of ribs, and two adjacent ribs are mutually spaced to form a through hole; the upper side and the lower side of the rib are respectively provided with the bulges; the driving assembly comprises a first guide rail, a second guide rail, a third guide rail, an air cylinder, a driving seat, a rotating piece, a driving piece and an elastic piece; the second guide rail and the third guide rail are mounted on the upper side of the mounting seat, and the first guide rail is supported on the upper side of the second guide rail and the third guide rail; the cylinder is arranged on one side of the first guide rail; the driving seat is arranged on an output shaft of the air cylinder and can be slidably arranged on the first guide rail, the driving seat is square, a first stop piece, a second stop piece and a first connecting column are arranged on the upper side of the driving seat, and the first stop piece, the second stop piece and the first connecting column are respectively perpendicular to the upper side of the driving seat; the rotating piece is rotatably arranged on the driving seat, and two ends of the rotating piece respectively protrude out of the driving seat; the driving piece is arranged at one end of the rotating piece protruding out of the driving seat, and the driving piece is arranged between the scraping piece and the driving seat; the elastic piece is connected between the driving seat and the rotating piece; the rotating piece comprises a rotating piece body, a rotating shaft, a support arm and a second connecting column; the rotating piece body is cylindrical; the rotating shaft vertically extends downwards from the lower side of the rotating member body along the axial direction of the rotating member body; the support arm extends outwards from the peripheral side of the rotating member body along the radial direction of the rotating member body, and can be stopped by the first stopping piece or the second stopping piece when rotating to the first stopping piece or the second stopping piece; two ends of the elastic piece are respectively connected to the first connecting column and the second connecting column; the driving piece comprises a driving piece body, a first connecting arm, a second connecting arm, a first driving part and a second driving part; the driving piece body is a sleeve with two open ends and is arranged on the rotating shaft; the first connecting arm and the second connecting arm extend outwards from the outer peripheral side of the driving piece body along the radial direction of the driving piece body respectively; the first driving part is arranged at one end of the first connecting arm far away from the driving piece body, and the second driving part is arranged at one end of the second connecting arm far away from the driving piece body.
2. The concrete raw material screening apparatus according to claim 1, wherein an angle between the first connecting arm and the second connecting arm is 120 °.
3. The concrete raw material screening device according to claim 1, wherein the screening member includes a screening member body, a first mounting plate and a second mounting plate; the screening part body is in a hollow column shape with two open ends, and a plurality of perforations are formed in the screening part body; the first mounting plate is arranged on one axial end of the screening piece body, which is adjacent to the feeding hopper, and the second mounting plate is arranged on the other axial end of the screening piece body, which is far away from the feeding hopper; a first mounting plate is movably mounted on the second rail and a second mounting plate is movably mounted on the third rail.
4. A screening device for concrete raw materials according to claim 3, wherein an end of the scraper body of the scraper remote from the mounting sleeve is provided as a first planar portion; the screening piece body is provided with a first semicircular part, a second semicircular part which is arranged opposite to the first semicircular part, and a second plane part which is connected between the bottom ends of the first semicircular part and the second semicircular part; the second plane part is attached to the first plane part; when the screening member body moves relative to the feed hopper, the first semicircular portion or the second semicircular portion can be attached to the outer side of the scraping member body.
5. A screening device for concrete raw materials according to claim 3, wherein an opening is formed in the upper side of the screening member body; one end of the opening, which is adjacent to the first mounting plate, is provided with a pushing part; the pushing part extends towards the second mounting plate to form a triangle, and two sides of the pushing part are respectively provided with a first inclined plane and a second inclined plane.
6. The concrete raw material screening device according to claim 5, wherein a first stop portion and a second stop portion are respectively provided at both sides of the opening of the screening member body, the first stop portion and the second stop portion are disposed opposite to each other, and the first stop portion and the second stop portion are respectively perpendicular to the respective sides of the opening.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410521037.2A CN118080328B (en) | 2024-04-28 | 2024-04-28 | Screening device for concrete raw materials |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410521037.2A CN118080328B (en) | 2024-04-28 | 2024-04-28 | Screening device for concrete raw materials |
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| CN118080328A CN118080328A (en) | 2024-05-28 |
| CN118080328B true CN118080328B (en) | 2024-07-12 |
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| CN116651731A (en) * | 2023-08-02 | 2023-08-29 | 临朐县天顺混凝土有限公司 | Premixed concrete raw material processing sieving mechanism for urban construction |
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| DE102011104860B4 (en) * | 2011-06-07 | 2017-02-02 | Kompoferm Gmbh | screening machine |
| US9809390B2 (en) * | 2016-07-16 | 2017-11-07 | Otis Walton | Granular material scoop and near-vertical lifting feeder/conveyor |
| KR102006454B1 (en) * | 2018-03-12 | 2019-08-01 | 이성용 | dry tipic apparatus for seperating sand |
| KR20190131974A (en) * | 2018-05-18 | 2019-11-27 | 권종선 | a apparatus for separating dust from structural sand |
| KR101943380B1 (en) * | 2018-05-29 | 2019-02-01 | 주식회사 신텍 | Integrated multi sorting apparatus and method thereof |
| CN209968882U (en) * | 2019-05-21 | 2020-01-21 | 高琳琳 | Gravel and sand clean-up equipment |
| CN212524874U (en) * | 2020-05-07 | 2021-02-12 | 陈安淑 | Sieving mechanism is used in cement manufacture with prevent caking function |
| CN114850118B (en) * | 2022-04-06 | 2023-09-26 | 韶关联昌混凝土有限公司 | Preparation method of green recycled concrete |
| CN114472151B (en) * | 2022-04-07 | 2022-07-08 | 山东海普欧环保设备科技有限公司 | Soil is administered with soil screening edulcoration device |
| CN219880530U (en) * | 2023-05-19 | 2023-10-24 | 中铁十九局集团有限公司 | Sand screening device for constructional engineering |
| CN117102015A (en) * | 2023-10-07 | 2023-11-24 | 商丘学院 | Small sand screening machine for civil engineering and use method |
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| CN116651731A (en) * | 2023-08-02 | 2023-08-29 | 临朐县天顺混凝土有限公司 | Premixed concrete raw material processing sieving mechanism for urban construction |
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