CN115520682A

CN115520682A - Raw materials screening system for concrete production

Info

Publication number: CN115520682A
Application number: CN202211152768.1A
Authority: CN
Inventors: 王玉峰
Original assignee: Guangzhou Yingzhu Concrete Co ltd
Current assignee: Guangzhou Yingzhu Concrete Co ltd
Priority date: 2022-09-21
Filing date: 2022-09-21
Publication date: 2022-12-27
Anticipated expiration: 2042-09-21
Also published as: CN115520682B

Abstract

The application discloses raw materials screening system for concrete production, it includes: the material bin is arranged on the rack, and the bottom of the material bin is provided with a discharge hole; the screening mechanism is arranged at the bottom of the material bin and is used for screening aggregate falling out of the discharge port; the rotating rods are arranged between the inner walls of the material bins in parallel, and the end parts of the rotating rods are exposed out of the material bins; the rotary drum is sleeved on the outer side of the rotary rod; the power mechanism is arranged on the outer side of the material bin and used for driving the rotating rod to rotate; and the guiding device is arranged in the material bin and is positioned at the bottom of the rotary drum and used for guiding the aggregates. When the material bin is used, the aggregates can uniformly enter the material bin, so that the blocking condition of the material bin can be reduced, and the normal operation of the screening equipment is ensured.

Description

Raw materials screening system for concrete production

Technical Field

The invention relates to the field of concrete screening equipment, in particular to a raw material screening system for concrete production.

Background

Concrete is an indispensable material in the building industry, and is mainly formed by mixing various aggregates such as sand, stones, fine sand and the like with cement in a certain proportion.

At present, traditional screening equipment mainly includes the material storehouse to and set up the screening mechanism in the material storehouse bottom, when screening equipment during operation, generally import the aggregate through conveyor in the material storehouse, the aggregate can get into screening mechanism from the bottom discharge mouth in material storehouse and filter, the aggregate of selecting again through the conveyer belt carry predetermined place can.

Aiming at the current situation, the inventor thinks that when the aggregates enter the material bin, the aggregates are easy to accumulate in the material bin, especially most of the aggregates are exposed outdoors and are easy to be coagulated into blocks, so that the blockage of the material bin is easy to cause and the normal work of the screening equipment is influenced.

Disclosure of Invention

An object of this application is to provide a raw materials screening system for concrete production can make the more even entering material storehouse of aggregate to can reduce the condition that the material storehouse blockked up appears, with the normal operating of guaranteeing screening equipment.

The application provides a raw materials screening system for concrete production adopts following technical scheme:

a raw material screening system for concrete production, comprising: the material bin is arranged on the rack, and the bottom of the material bin is provided with a discharge hole; the screening mechanism is arranged at the bottom of the material bin and is used for screening aggregate falling out of the discharge port; the rotating rods are arranged between the inner walls of the material bins in parallel, and the end parts of the rotating rods are exposed out of the material bins; a rotary drum sleeved outside the rotary rod; the power mechanism is arranged on the outer side of the material bin and used for driving the rotating rod to rotate; and the guiding device is arranged in the material bin and is positioned at the bottom of the rotary drum and used for guiding the aggregates.

Through adopting above-mentioned technical scheme, in-process in aggregate input material storehouse, the rotary drum of setting, can rotate under power unit's drive, two rotary drums are mutually supported, both can extrude the bulky aggregate and make its crowded garrulous, can also make the more even entering material storehouse of aggregate simultaneously, and the guide device of setting, can lead to the aggregate on the basis of rotary drum, make the more even of aggregate dispersion, be favorable to reducing the condition that the aggregate blockked up the material storehouse and appear, thereby can guarantee screening plant's normal operating.

The application further provides that the power mechanism comprises: a gear mounted at the outer end of the rotating rod; the inner tooth belt is sleeved between the gears; and the servo motor is arranged on the outer side of the material bin, and the output shaft and the rotating rod are fixed at one end far away from the gear.

Through adopting above-mentioned technical scheme, when needs drive the rotary drum and rotate, can open servo motor, servo motor can drive the bull stick at the in-process of opening and rotate to drive the rotary drum and rotate, whole structure easy operation, labour saving and time saving

The material bin is further provided with bar-shaped sliding openings for the end parts of the rotating rods far away from the servo motor to slide, tensioning assemblies for adjusting the tightness of the internal tooth belt are arranged on the outer sides of the material bin, and adjusting assemblies for limiting the end parts of the rotating rods in the bar-shaped sliding openings to adjust the distance between the two rotating rods are further arranged on the outer sides of the material bin.

Through adopting above-mentioned technical scheme, when the distance between two bull sticks is adjusted to needs, can go on through adjusting part, adjusting part's setting can increase the application scope of rotary drum to the needs of adaptation reality, and the tensioning subassembly that sets up can adjust the elasticity of internal tooth belt, in order to guarantee that adjusting part is in the state of tensioning all the time.

The present application further provides that the tensioning assembly comprises: the end part of the pressing rod is rotatably arranged at the outer side of the material bin through a rotating shaft; the pressing wheel is arranged at the end part of the pressing rod and used for pressing the internal tooth belt; and a torsional spring arranged between the rotating shaft and the abutting rod and used for driving the pressing wheel to abut against the internal tooth belt.

Through adopting above-mentioned technical scheme, at the in-process of tensioning internal tooth belt, the torsional spring that sets up can utilize the elastic force drive of self to support the depression bar rotatory for support the pinch roller that the depression bar drove the tip and support all the time and press on the internal tooth belt, in order to realize the purpose of tensioning internal tooth belt, this structural design is ingenious, and the effect is obvious.

The present application further provides that the adjustment assembly comprises: the sliding block is connected to the moving block outside the material bin in a sliding manner along the extending direction of the strip-shaped sliding opening; the movable ring block is sleeved at the end part of the rotating rod and is fixed with the movable block through the connecting frame; the threaded rod is inserted in the moving block along the extending direction of the moving block; and the servo motor is arranged on the outer side of the material bin and used for driving the threaded rod to rotate so as to drive the moving block to slide.

Through adopting above-mentioned technical scheme, when opening servo motor, can drive the movable block and slide at the outer wall in material storehouse, the movable block when sliding, alright remove in the bar sliding opening in order to drive the annular piece and drive the bull stick to can be very convenient adjust the distance between two bull sticks.

The present application further provides that the guiding means comprises: the cross rods are arranged between the inner walls of the material bins and are parallel to the rotating rods; a T-bar mounted on the cross bar; symmetrical rotating plates hinged on the T-shaped rod; and the driving assembly is arranged on the cross rod and the T-shaped rod and is used for driving the two rotating plates to rotate.

Through adopting above-mentioned technical scheme, the commentaries on classics board that sets up can further lead to the aggregate of revolving drum dispersion for the aggregate carries out the landing along predetermined direction, and the drive assembly who sets up can drive and change the board and rotate, in order to increase the application scope who changes the board, makes the aggregate dispersion that can be more even in the material storehouse.

The present application further provides that the drive assembly comprises: the sliding sleeve is sleeved on the sliding cylinder on the T-shaped rod in a sliding manner; one end of the connecting rod is hinged on the sliding cylinder, and the other end of the connecting rod is hinged on the rotating plate; the spring is sleeved on the T-shaped rod, and the end part of the spring is respectively abutted against the top of the T-shaped rod and the sliding cylinder; and the driving piece is arranged on the cross rod and used for driving the sliding barrel to slide.

Through adopting above-mentioned technical scheme, when needs drive commentaries on classics board rotated, can open driving piece drive slide cartridge and slide on T shape pole, the slide cartridge can drive through the connecting rod and change the board and rotate on T shape pole at the slip in-process to this adjusts two contained angles of changeing between the board, this structure easy operation, whole process automation degree is high, labour saving and time saving.

The material bin is further provided with guide plates which are parallel to the rotating plates and hinged to two sides of the inner wall of the material bin, a supporting cylinder is installed on the inner wall of the material bin in an inclined rotating mode, a supporting rod is sleeved in the supporting cylinder in a sliding mode, the outer end portion of the supporting rod is rotatably connected with the guide plates, and a buffer spring used for connecting the inner end of the supporting cylinder and the inner end of the supporting rod is arranged between the inner wall of the supporting cylinder and the inner end of the supporting rod.

Through adopting above-mentioned technical scheme, when the aggregate landing was to the baffle, the bracing piece that sets up can slide in supporting the section of thick bamboo under buffer spring's effect to the drive baffle swings at predetermined within range, thereby can further improve the direction effect of baffle to the aggregate, makes the aggregate disperse more, reduces the condition that the material storehouse blockked up and appears.

The application further provides that the cross section of the rotary drum is in a regular polygon shape, and a plurality of annular toothed plates are arranged on the outer side of the rotary drum in a surrounding mode.

Through adopting above-mentioned technical scheme, polygonal rotary drum, can be better lead and reposition of redundant personnel to the aggregate, be favorable to the even whereabouts of aggregate to the material storehouse in, and a plurality of annular toothed plates that set up can carry out the breakage to the aggregate that condenses into the piece at rotatory in-process, further reduce the aggregate and block up the condition appearance in material storehouse.

The material bin is further provided with a swing assembly used for swinging and guiding the raw materials, wherein the swing assembly is arranged between the inner walls of the discharge holes of the material bin.

Through adopting above-mentioned technical scheme, the swing subassembly that sets up can swing and the direction to the aggregate of discharge gate position at aggregate whereabouts in-process for the aggregate further dispersion fall into screening mechanism, both can reduce the condition that the aggregate blockked up the material storehouse, simultaneously, still be favorable to the aggregate to sieve.

In summary, the present application includes at least one of the following beneficial technical effects:

through setting up two rotary drums and the power unit that drives the rotary drum and rotate, power unit can drive two rotary drums and rotate when opening, both can carry out centre gripping breakage to bold aggregate, simultaneously, can also carry out dispersion operation to the aggregate that gets into in the material storehouse, and the adjusting part that sets up can adjust the distance between two rotary drums according to actual need to can increase the application scope of this application;

through setting up the commentaries on classics board, change the board and can carry out the regulation of angle under drive assembly's drive for the even dispersion of aggregate is opened, and the baffle that sets up can mutually support with changeing the board, leads the aggregate that gets into in the material storehouse, further disperses the aggregate, reduces the condition that the aggregate appears blockking up.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic structural view of an adjustment assembly in an embodiment of the present application;

fig. 3 is a schematic structural diagram of a swing assembly in an embodiment of the present application.

Description of reference numerals: 1. a frame; 2. a material bin; 20. a discharge port; 21. a strip-shaped sliding opening; 3. a rotating rod; 30. a ring toothed plate; 31. a rotating drum; 32. a gear; 33. an internally toothed belt; 34. a servo motor; 35. a pressing rod is abutted; 36. a pinch roller; 37. a moving block; 38. a ring block; 39. a threaded rod; 4. a cross bar; 41. a T-shaped rod; 42. rotating the plate; 43. a slide cylinder; 44. a connecting rod; 45. a spring; 5. a guide plate; 51. a support cylinder; 52. a support bar; 6. a swing lever; 61. a swing plate; 62. a drive gear; 63. a toothed plate; 64. and a cylinder.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The embodiment of the application discloses raw materials screening system for concrete production, as shown in fig. 1 and 2, includes: the screening machine comprises a frame 1, wherein a material bin 2 is installed on the frame 1, the top opening of the material bin 2 is approximately square, a discharge hole 20 with a rectangular opening is formed in the bottom of the material bin 2, a screening mechanism (not shown in the figure) is installed on the frame 1 at the bottom of the material bin 2, and the screening mechanism usually adopts a drum screen.

When the aggregates need to be screened, the aggregates can be conveyed into the material bin 2 through the conveying device, then the aggregates can fall into the screening mechanism from the discharge port 20, the screening mechanism screens the aggregates, and the screened aggregates are conveyed to a preset position through the conveying belt.

In view of the reality, the aggregate is when throwing into material storehouse 2, the circumstances of piling up appears very easily, thereby cause material storehouse 2 to block up easily, to this, in this embodiment, 2 inner walls in material storehouse are close to the position rotation of top and are installed two bull sticks 3 that are parallel to each other, 2 outsides in material storehouse are all exposed at the both ends of bull stick 3, the outside cover is equipped with rotary drum 31 on bull stick 3, and simultaneously, still be provided with power unit in the outside of material storehouse 2, power unit is used for driving bull stick 3 and rotates in order to drive rotary drum 31 and rotate.

In-process when the aggregate drops into material storehouse 2, can open power unit and drive rotary drum 31 and rotate, rotary drum 31 can carry out the dispersion operation to the aggregate at rotatory in-process, and simultaneously, two rotary drums 31 can also extrude the breakage to condensing into massive aggregate for the more even scattering of aggregate advances material storehouse 2, thereby can reduce the condition that material storehouse 2 appears blockking up.

In this embodiment, the power mechanism includes: install the gear 32 at the outer tip of bull stick 3, the cover is equipped with internal tooth belt 33 between two gears 32, installs servo motor 34 in the material storehouse 2 outside, and servo motor 34's output shaft is fixed mutually with one of them bull stick 3 one end of keeping away from gear 32, when opening servo motor 34, can drive two bull sticks 3 through internal tooth belt 33 and rotate to two rotary drums 31 of very convenient drive rotate.

In order to increase the application scope of rotary drum 31, the bar spout 21 has all been seted up in the symmetrical both sides of material storehouse 2, and the 3 tip of bull stick that servo motor 34 can be kept away from to the bar spout 21 slides, and wherein, is provided with adjusting part in the outside of material storehouse 2, and adjusting part can adjust the distance between two bull sticks 3, after bull stick 3 slides predetermined position, can lock bull stick 3.

In this embodiment, the adjusting assembly includes: the moving block 37 is connected to the outer side of the material bin 2 in a sliding mode along the extending direction of the strip-shaped sliding opening 21, the outer end portion of the rotating rod 3 is movably sleeved with the annular block 38, the annular block 38 is connected with the moving block 37 through the I-shaped connecting frame, the threaded rod 39 is further inserted into the moving block 37 in a threaded penetrating mode, the threaded rod 39 is driven to rotate conveniently, the servo motor is further installed on the outer side of the material bin 2, and the output shaft of the servo motor is fixed to the end portion of the threaded rod 39.

In addition, considering that the internal toothed belt 33 cannot be adjusted in length when adjusting the distance between the two rotating rods 3, in this embodiment, a tensioning assembly is further provided outside the material bin 2, and the tensioning assembly can tension the tightness of the internal toothed belt 33 to adapt to the adjustment of the distance between the rotating rods 3.

The tensioning assembly comprises a pressing rod 35, the end part of the pressing rod is rotatably installed on the outer side of the material bin 2 through a rotating shaft, a pressing wheel 36 is installed at the outer end part of the pressing rod 35, meanwhile, a torsion spring is installed between the end part of the pressing rod 35 and the rotating shaft, and the torsion spring can enable the pressing wheel 36 to be always abutted against the internal tooth belt 33 through elastic force of the torsion spring.

When the distance between two bull sticks 3 needs to be adjusted, can drive threaded rod 39 through opening servo motor and rotate, threaded rod 39 can drive movable block 37 and remove when rotatory, movable block 37 is when removing, can drive bull stick 3 through annular piece 38 and slide in bar sliding opening 21 to this adjusts the distance between two bull sticks 3, and simultaneously, the torsional spring can drive pinch roller 36 of propping depression bar 35 tip and butt all the time on internal toothed belt 33, with the regulation of distance between the adaptation bull stick 3.

As shown in fig. 2 and 3, in order to guide the aggregates falling in the material bin 2 and make the aggregates more dispersed, a guiding device is further disposed in the material bin 2, and the guiding device is located below the rotating drum 31, in this embodiment, the guiding device includes: the cross rod 4 is installed between the inner walls of the material bin 2, the cross rod 4 and the rotating rod 3 are located in parallel, the T-shaped rod 41 is vertically installed on the cross rod 4, symmetrical rotating plates 42 are hinged to the tops of the T-shaped rods 41, driving assemblies are arranged on the cross rod 4 and the T-shaped rods 41 and used for driving the rotating plates 42 to turn over, and therefore the direction of guiding aggregate is changed in real time according to actual conditions.

In this embodiment, the driving assembly includes: the slide tube 43 on the T-shaped rod 41 is sleeved in a sliding mode, symmetrical connecting rods 44 are hinged to the outer side of the slide tube 43, one end, far away from the slide tube 43, of each connecting rod 44 is hinged to the rotating plate 42, a driving piece for driving the slide tube 43 to slide in the vertical direction is installed on the cross rod 4, in addition, in order to increase the guiding effect of the rotating plate 42, a buffering protection effect is achieved on the rotating plate 42, a spring 45 is further sleeved on the T-shaped rod 41, one end of the spring 45 abuts against the top of the T-shaped rod 41, and the other end of the spring 45 abuts against the slide tube 43.

When the driving part is opened, the sliding cylinder 43 can be driven to slide on the T-shaped rod 41, and in the sliding process of the sliding cylinder 43, the rotating plate 42 is driven to rotate through the hinged connecting rod 44, so that the rotating plate 42 swings in a preset range, aggregates falling onto the rotating plate 42 can be guided in a swinging mode, and the aggregates can be scattered in the material bin 2 more uniformly.

In addition, still articulated in 2 inner walls both sides in material storehouse 2 have with the baffle 5 that changes the board 42 and be parallel to each other, the position that just is located baffle 5 below at the both sides inner wall in material storehouse 2 articulates there is a support section of thick bamboo 51, under normal condition, a support section of thick bamboo 51 slope sets up, and it has the bracing piece 52 to slide to alternate in a support section of thick bamboo 51, the one end that a support section of thick bamboo 51 was kept away from to bracing piece 52 articulates in baffle 5 bottom, still be provided with the buffer spring who is used for connecting both between support section of thick bamboo 51 inner wall and bracing piece 52 inner.

When the aggregate fell to the commentaries on classics board 42 on, can be along changeing on the board 42 landing to the baffle 5, at this moment, under buffer spring's effect, bracing piece 52 can play the buffering supporting role to baffle 5 for the aggregate again along baffle 5 landing to discharge gate 20 department, through changeing mutually supporting of board 42 and baffle 5, thereby can effectually lead to the aggregate, make the even scattering of aggregate, reduce the condition that blocks up storage silo 2.

It should be noted that, in order to make the aggregate disperse more uniformly, the cross section of the rotary drum 31 is set to be a regular polygon, which is a quadrangle in this embodiment, in addition, a plurality of annular toothed plates 30 are arranged around the outer side of the rotary drum 31, and when the aggregate coagulated into blocks is encountered, the arranged annular toothed plates 30 can crush the blocky aggregates, which is beneficial to the uniform scattering of the aggregates.

As shown in fig. 3, in this embodiment, in order to increase the guiding effect on the aggregates, a swing component is further disposed between the inner walls of the discharge hole 20 of the material bin 2, wherein the swing component includes: two oscillating rods 6 rotatably mounted between the inner walls of the discharge ports 20, the end parts of the oscillating rods 6 are exposed out of the outer side of the material bin 2, oscillating plates 61 are fixed on the oscillating rods 6, the oscillating plates 61 are located at positions between the discharge ports 20, driving gears 62 are mounted at the outer end parts of the oscillating rods 6, toothed plates 63 are horizontally and slidably mounted on the outer side of the material bin 2, the toothed plates 63 are meshed with the driving gears 62, air cylinders 64 are mounted on the outer side of the material bin 2, and piston rods of the air cylinders 64 are fixed with the toothed plates 63.

When opening cylinder 64, can drive pinion rack 63 horizontal slip, pinion rack 63 horizontal migration alright rotate with driving swinging arms 6 for swinging arms 6 drives swinging plates 61 and swings between discharge gate 20, at the wobbling in-process of swinging plates 61, just can pat and lead the aggregate, makes the aggregate evenly scatter to screening mechanism in, is favorable to the screening of aggregate.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A raw material screening system for concrete production, comprising: the material bin (2) is arranged on the rack (1) and provided with a discharge hole (20) at the bottom;

the screening mechanism is arranged at the bottom of the material bin (2) and is used for screening the aggregates falling out of the discharge port (20);

the rotating rods (3) are arranged between the inner walls of the material bins (2) in parallel, and the end parts of the rotating rods are exposed out of the material bins (2);

a rotary drum (31) sleeved outside the rotary rod (3);

a power mechanism which is arranged at the outer side of the material bin (2) and is used for driving the rotating rod (3) to rotate;

and the guiding device is arranged in the material bin (2) and is positioned at the bottom of the rotary drum (31) and used for guiding the aggregates.

2. The raw material screening system for concrete production as claimed in claim 1, wherein said power mechanism comprises: a gear (32) mounted at the outer end of the rotating rod (3); an internal toothed belt (33) sleeved between the gears (32); and the servo motor (34) is arranged on the outer side of the material bin (2) and the output shaft and one end of the rotating rod (3) far away from the gear (32) are fixed.

3. The raw material screening system for concrete production according to claim 1, wherein the two symmetrical sides of the material bin (2) are provided with bar-shaped sliding openings (21) for allowing the end portions of the rotating rods (3) far away from the servo motor (34) to slide, the outer side of the material bin (2) is provided with a tensioning assembly for adjusting the tightness of the internal tooth belt (33), and the outer side of the material bin (2) is further provided with an adjusting assembly for limiting the end portions of the rotating rods (3) in the bar-shaped sliding openings (21) to adjust the distance between the two rotating rods (3).

4. A concrete production raw material screening system in accordance with claim 3, wherein said tension assembly comprises: the end part of the pressing rod (35) is rotatably arranged at the outer side of the material bin (2) through a rotating shaft; a pressing wheel (36) which is arranged at the end part of the pressing rod (35) and is used for pressing the internal tooth belt (33); and a torsion spring which is arranged between the rotating shaft and the pressing rod (35) and is used for driving the pressing wheel (36) to tightly press against the internal tooth belt (33).

5. The concrete production raw material screening system of claim 3, wherein the adjustment assembly comprises: a moving block (37) is connected to the outer side of the material bin (2) in a sliding manner along the extending direction of the strip-shaped sliding opening (21); the movable sleeve is arranged on the end part of the rotating rod (3) and is fixed with the annular block (38) through the connecting frame; a threaded rod (39) threaded through the moving block (37) in the direction in which the moving block (37) extends; and the servo motor is arranged on the outer side of the material bin (2) and used for driving the threaded rod (39) to rotate so as to drive the moving block (37) to slide.

6. A concrete production raw material screening system in accordance with claim 1, wherein said guide means comprises: a cross rod (4) which is arranged between the inner walls of the material bins (2) and is parallel to the rotating rod (3); a T-shaped bar (41) mounted on the cross bar (4); symmetrical rotating plates (42) hinged on the T-shaped rod (41); and the driving components are arranged on the cross rod (4) and the T-shaped rod (41) and are used for driving the two rotating plates (42) to rotate.

7. A concrete production raw material screening system in accordance with claim 6, wherein said drive assembly comprises: the sliding sleeve is sleeved on the upper sliding barrel (43) of the T-shaped rod (41); a connecting rod (44) with one end hinged on the sliding cylinder (43) and the other end hinged on the rotating plate (42); the spring (45) is sleeved on the T-shaped rod (41) and the end part of the spring is respectively abutted with the top of the T-shaped rod (41) and the sliding cylinder (43); and the driving piece is arranged on the cross rod (4) and used for driving the sliding barrel (43) to slide.

8. The raw material screening system for concrete production according to claim 1, wherein guide plates (5) parallel to the rotating plate (42) are hinged to two sides of the inner wall of the material bin (2), a supporting cylinder (51) is installed on the inner wall of the material bin (2) in an inclined and rotating mode, a supporting rod (52) is sleeved in the supporting cylinder (51) in a sliding mode, the outer end portion of the supporting rod is rotatably connected with the guide plates (5), and a buffer spring used for connecting the inner wall of the supporting cylinder (51) and the inner end of the supporting rod (52) is arranged between the inner wall of the supporting cylinder (51) and the inner end of the supporting rod (52).

9. The raw material screening system for concrete production according to claim 1, wherein the cross section of the rotary drum (31) is a regular polygon, and a plurality of annular toothed plates (30) are arranged around the outer side of the rotary drum (31).

10. The raw material screening system for concrete production according to claim 1, wherein a swing assembly for swing guiding of the raw materials is further arranged between inner walls of the discharge port (20) of the material bin (2).