CN111451142B

CN111451142B - Energy-concerving and environment-protective type building engineering construction building materials sieving mechanism for grit

Info

Publication number: CN111451142B
Application number: CN202010267980.7A
Authority: CN
Inventors: 夏杰
Original assignee: Wuxi Xisheng Construction Co ltd
Current assignee: Wuxi Xisheng Construction Co ltd
Priority date: 2020-04-08
Filing date: 2020-04-08
Publication date: 2021-01-19
Anticipated expiration: 2040-04-08
Also published as: CN111451142A

Abstract

The invention discloses an energy-saving and environment-friendly screening device for building material sand stones in building engineering construction, which comprises a box body, wherein two material sieves I and two material sieves II are connected in the box body in a sliding mode, the material sieves II are positioned on one sides of the material sieves I, the two material sieves I are arranged in the vertical direction, and the two material sieves II are arranged in the vertical direction. The sand screening machine has the effects of being capable of screening sand of various types at the same time and being high in screening efficiency.

Description

Energy-concerving and environment-protective type building engineering construction building materials sieving mechanism for grit

Technical Field

The invention relates to the field of screening devices, in particular to an energy-saving and environment-friendly screening device for building material sand stones for construction in constructional engineering.

Background

The building construction refers to the production activities in the construction and buying stage of engineering construction, is the construction process of various buildings, and just so, is the process of changing various lines on the design drawing into a real object at a designated place. The method comprises foundation engineering construction, main structure construction, roofing engineering construction, decoration engineering construction and the like. The site of the construction work is called a "construction site" or "job site", also called a worksite.

During construction engineering construction, after sand is transported from rivers or other places, the sand often contains a lot of large-particle broken stones and the like, and the large-particle broken stones cannot be directly used, but can meet construction requirements after being screened.

Chinese patent with publication number CN107214079A discloses a type grit sieving mechanism for construction of left and right rocking, the power distribution box comprises a box body, the dwang, sieve and gyro wheel, the rotation frame is equipped with the axis of rotation on the both sides board of box middle part inner chamber, the tip at the axis of rotation is established to the sieve mount, the equal fixed welding of four sides of sieve has erect the bounding wall, fixed surface installs left connector link on the left end of bounding wall on the sieve posterior lateral plate, fixed surface installs right connector link on the right-hand member of bounding wall on the sieve preceding lateral plate, the rotation frame is equipped with the dwang in the upper portion inner chamber of box, the left part link of dwang is equipped with left U type pole, the right part link of dwang is equipped with right U type pole, be connected through left connecting rod between left U type pole and the left connector link, be connected through right connecting rod between right.

The technical scheme has the following defects: building construction needs the grit of multiple model, and different grade type, grit not of uniform size have different usage, among the above-mentioned technical scheme, only can once screen, classify two kinds of grit about a model, and the screening result is careful not enough, and when needs screening less or great grit, a sieve will not satisfy the screening demand that obtains the grit of multiple model, and work efficiency is low, and the screening scope is little.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide the energy-saving environment-friendly screening device for the building material sand stone for the construction of the building engineering, which can screen out sand stones with various types at the same time and has high screening efficiency.

The above object of the present invention is achieved by the following technical solutions:

an energy-saving and environment-friendly screening device for construction building material sand stones in constructional engineering comprises a box body, wherein two material sieves I and two material sieves II are slidably connected in the box body, the material sieves II are positioned on one side of the material sieves I, the two material sieves I are arranged along the vertical direction, the two material sieves II are arranged along the vertical direction, two groups of guide frames I are arranged in the box body, one group of guide frames I comprises two oppositely arranged side walls, the two guide frames I are respectively positioned on two sides of the material sieves I, the material sieves I comprise a sieve box I, a sieve plate I fixedly arranged in the sieve box I, a plurality of sieve holes I arranged on the sieve plate I, a pulley I fixed on the side wall of the sieve box I and a discharge hole I arranged below the sieve box I, the pulley I is slidably connected on the material sieves I, and the diameter of the sieve hole I of the sieve plate I positioned above is larger than that of the sieve hole I positioned below the sieve plate, the second material sieve comprises a second sieve box, a second sieve plate fixedly arranged in the second sieve box, a plurality of second sieve holes formed in the second sieve plate, a second pulley fixed on the side wall of the second sieve box, and a second discharge hole formed in the bottom of the second sieve box, the second discharge port is connected with a material receiving box, two groups of second guide frames are fixedly arranged in the box body, one group of second guide frames comprises two guide frames which are oppositely arranged on two side walls, the two guide frames are respectively positioned on two sides of the second material sieve, the pulley II is connected to the top of the guide frame II in a sliding manner, one end of each of the two sieve plates is connected with the discharge plate I, one side of each of the two sieve boxes II is provided with a notch, the first discharging plate is inserted into the groove, the second discharging plate is fixedly connected to the two end portions of the sieve plate, the first box body and the second box body are arranged on the outer side of the box body and communicated, and a vibration assembly for driving the first discharging plate and the second discharging plate to move is arranged in the box body.

By adopting the technical scheme, sandstone raw materials are poured into the material sieve I positioned above, the vibration assembly drives the material sieve I and the material sieve II to vibrate in a reciprocating manner, in the process, the pulley I slides on the guide frame I, the pulley II slides on the guide frame II, when the material sieve I and the material sieve II move in a reciprocating manner, sandstone materials are screened, larger sandstone screened by the material sieve I positioned above moves onto the discharge plate I from the sieve plate I, enters onto the sieve plate II in the material sieve II after passing through the notch, larger sandstone screened by the sieve plate II leaves from the top of the discharge plate II and enters into one of the material boxes I, so that workers can collect the sandstone materials conveniently, and smaller sandstone materials enter into the material receiving box from the discharge hole II to collect the sandstone materials; through the sieve mesh of sieve one sieve screening back less grit enter into the sieve incasement that is located the below downwards, sieve screening back through sieve incasement, great grit enters into the material sieve two that are located the below after passing through the notch from the play flitch, the great part leaves from two tops of play flitch and enters into the workbin one that is located the below through sieve two after screening, less part drops from the discharge gate to down, make things convenient for the staff to collect, thereby realize the screening classification of the grit of multiple model, further improve the screening efficiency of grit.

The present invention in a preferred example may be further configured to: the diameter of the second sieve hole on the second sieve plate positioned above is smaller than that of the first sieve hole on the first sieve plate positioned above, and the diameter of the second sieve hole on the second sieve plate positioned above is larger than that of the first sieve hole on the first sieve plate positioned below.

Through adopting above-mentioned technical scheme, the sieve that is located the top is two kinds of classifications of size with grit branch, and the sieve that is located the top is two kinds of sizes with great grit subdividing into again, and the sieve that is located the below is one from the grit of less grit subdivision into the grit of two kinds of models of some of once more, less direct segregation, and great sieve two of carrying out the last separation screening through the sieve that is located the below.

The present invention in a preferred example may be further configured to: the vibrations subassembly is established at two epaxial awl teeth of drive shaft one, overlap respectively and establish two epaxial awl teeth two at the drive shaft output including rotating two pivots, fixed connection in the box, the drive shaft of rotation connection in the box, fixed cover, the drive shaft sets up along vertical direction, two pivot parallel arrangement, two the pivot all with the drive shaft sets up perpendicularly, two the awl tooth one and two the meshing of awl tooth two, the cam is located material sieve one and expects to sieve between two, the cam both sides are contradicted respectively on material sieve one and material sieve two.

Through adopting above-mentioned technical scheme, driving motor drives the drive shaft and rotates, the epaxial awl tooth of drive meshes with two awl teeth of two pivot tip, drive two pivots through two awl teeth and rotate in the box, when the pivot rotates, fix the epaxial cam rotation of rotating, the cam contradicts in proper order on sieve case one and sieve case two lateral walls apart from the longer end of pivot axis, promote sieve case one and sieve case two reciprocating motion in the box, make sieve case one and sieve case two constantly rock, screen the grit of sieve case one and sieve incasement two.

The present invention in a preferred example may be further configured to: at least two cams are arranged along the length direction of the rotating shaft.

Through adopting above-mentioned technical scheme, the setting of two at least cams can improve vibrations subassembly and sieve case one and sieve case two butt stability to when making the cam rotate, promote sieve case one and sieve case two and stabilize and remove along leading truck one and leading truck two, further improve the screening precision.

The present invention in a preferred example may be further configured to: the screen box is characterized in that a first roller is rotatably connected to one side wall of the screen box, a second roller is rotatably connected to two side walls of the screen box, and two sides of the cam are respectively abutted to the first roller and the second roller.

Through adopting above-mentioned technical scheme, the setting of gyro wheel one and gyro wheel two can make the cam conflict with gyro wheel one and gyro wheel two respectively when rotating to produce relative roll, reduce the area of contact of cam and sieve case one and sieve case two, increase transmission stability and transmission efficiency.

The present invention in a preferred example may be further configured to: be equipped with a plurality of reset assembly on the box lateral wall, reset assembly is including fixing spring, the conflict board of fixed connection in spring one end on the box lateral wall, and is a plurality of reset assembly is equipped with two sets ofly, two sets of about the box symmetry conflict respectively on sieve case one and sieve case two lateral walls.

Through adopting above-mentioned technical scheme, under the tension effect of spring, promote conflict board to deviating from spring place one side motion, the setting of a plurality of reset assembly on the box lateral wall, can make the conflict board of both sides conflict under the effect of spring on sieve case one and sieve case two lateral walls, thereby make sieve case one with sieve case two to relative one side motion reset, promote when the cam rotates sieve case one and sieve case two in turn to reset assembly one side motion, when the cam keeps away from the sieve case apart from the longer one end of pivot, make the sieve case reset at the spring with the cooperation of conflict board.

The present invention in a preferred example may be further configured to: the bottom half is equipped with the collection subassembly, the collection subassembly is including fixing driving actuating cylinder, demountable installation at the case that gathers materials that drives actuating cylinder output at the bottom half, the case that gathers materials is located two sieve casees bottom, the bottom half is seted up and is supplied the gliding opening of case that gathers materials.

Through adopting above-mentioned technical scheme, collect the bottom that the subassembly is located two sieve casees one, after a pair of grit of sieve case that is located the below filters, finer grit enters into the case that gathers materials after leaving from the discharge gate of sieve incasement bottom, after the case that gathers materials full of grit material, drives actuating cylinder and promotes the case that gathers materials and leaves the box from the opening part, will gather materials the case from driving actuating cylinder output and pull down the back, driving the new case that gathers materials of actuating cylinder output installation, conveniently collect next time.

The present invention in a preferred example may be further configured to: the box outside is equipped with the dust absorption pump, be connected with the dust absorption pipe on the dust absorption pump, the dust absorption pipe is worn to establish on the box lateral wall.

Through adopting above-mentioned technical scheme, the dust absorption pump work, through the suction pipe with dust suction from the box in, reduce the dust and cause the pollution or influence staff's healthy to the air.

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

1. through the arrangement of the two material sieves II which are respectively connected with the two material sieves I, the materials screened by the material sieve I can enter the material sieve II to be further screened, so that the screening of various types of gravels is realized, and the screening efficiency is further improved;

2. through the arrangement of the vibration assembly arranged between the first material sieve and the second material sieve, the first material sieve and the second material sieve can be driven to vibrate repeatedly, so that the gravel is screened;

3. through the setting of dust absorption pump, can reduce the dust in the box, prevent to pollute.

Drawings

FIG. 1 is a schematic structural view of an energy-saving and environment-friendly screening device for building material sand and stone for construction in building engineering;

FIG. 2 is a partial sectional view of the energy-saving and environment-friendly screening device for building material sand for construction in construction works;

FIG. 3 is a schematic view of the structure within the tank;

FIG. 4 is a schematic cross-sectional view of an energy-saving and environment-friendly screening device for building material sand and stone for construction in building engineering.

In the figure, 1, a box body; 11. screening a material I; 111. a first screen box; 112. a first sieve plate; 113. screening holes I; 114. a first pulley; 115. a first discharge hole; 116. a first discharging plate; 117. a first roller; 12. screening the material II; 121. a second screen box; 122. a second sieve plate; 123. a second sieve mesh; 124. a second pulley; 125. a discharge hole II; 126. a second discharge plate; 127. a notch; 128. a second roller; 13. a first guide frame; 131. a first bolt; 14. a second guide frame; 142. a second bolt; 15. a feed inlet; 16. a first material box; 161. a first discharge opening; 17. an opening; 18. a material box II; 181. a discharge outlet II; 19. a support frame; 2. a vibration assembly; 201. a rotating shaft; 202. a cam; 203. a drive shaft; 204. a drive motor; 205. a first bevel gear; 206. a second bevel gear; 3. a reset assembly; 301. a spring; 302. a touch plate; 4. a collection assembly; 401. a driving cylinder; 402. a material collecting box; 41. mounting a plate; 42. a plugboard; 43. a third bolt; 44. a universal wheel; 5. a dust suction pump; 51. a dust suction pipe.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

the utility model provides an energy-concerving and environment-protective type sieving mechanism for building materials grit in building engineering construction, refer to fig. 1, including box 1, feed inlet 15 has been seted up at 1 top of box, install leading truck 13 through bolt 131 in the box 1, two leading trucks 13 on 1 two relative lateral walls of box are a set of, leading truck 13 is equipped with two sets ofly along 1 direction of height of box, sliding connection has two material sieves one 11 and two material sieves two 12 in the box 1, two leading trucks one 13 in a set of are located the both sides of material sieve one 11 respectively, two material sieves one 11 sliding connection respectively at two sets of leading truck 13 tops.

Referring to fig. 1 and 3, two groups of guide frames II 14 are installed in the box body 1 through bolts II 142, each group of guide frame comprises two guide frames II 14 which are oppositely arranged on two side walls, the two guide frames II 14 are respectively located on two sides of the material sieve II 12, the two groups of guide frames II 14 are arranged along the vertical direction, and the two material sieve II 12 are slidably connected to the tops of the two guide frames II 14.

Referring to fig. 2 and 3, a vibration assembly 2 for driving a first material sieve 11 and a second material sieve 12 to move is arranged in a box body 1, the vibration assembly 2 comprises two rotating shafts 201 rotatably connected in the box body 1, a cam 202 fixedly connected to the rotating shafts 201, a driving shaft 203 rotatably connected in the box body 1, a driving motor 204 connected to the output end of the driving shaft 203, two first bevel teeth 205 fixedly sleeved on the driving shaft 203, two second bevel teeth 206 respectively sleeved on the two rotating shafts 201, the driving shaft 203 is arranged along the vertical direction, the two rotating shafts 201 are arranged in parallel, the two rotating shafts 201 are both arranged perpendicular to the driving shaft 203, the two first bevel teeth 205 are respectively engaged with the two second bevel teeth 206, and the cam 202 is located between the first material sieve 11 and the second material sieve 12.

Referring to fig. 3 and 4, the first roller 117 is rotatably connected to the side wall of the first sieve box 111, the second roller 128 is rotatably connected to the side wall of the second sieve box 121, two sides of the cam 202 are respectively abutted to the first roller 117 and the second roller 128, at least two cams 202 are arranged along the length direction of the rotating shaft 201, and the first roller 117 and the second roller 128 are arranged in cooperation with the cam 202.

Referring to fig. 2 and 3, when the driving motor 204 is operated, the driving shaft 203 and the two first bevel gears 205 on the driving shaft 203 are driven to rotate, the two second bevel gears 206 meshed with the two first bevel gears 205 rotate, and the two rotating shafts 201 are driven to rotate in the box body 1, the box body 1 is internally provided with a supporting frame 19 for supporting the rotating shafts 201, the rotating shafts 201 are rotatably connected to the supporting frame 19, when the rotating shafts 201 rotate, the cams 202 on the rotating shafts 201 rotate, and the first rollers 117 and the second rollers 128 are pushed to and fro along with the rotation of the cams 202, so that the first sieve boxes 111 and the second sieve boxes 121 slide on the first guide frames 13 and the second guide frames 14, and the sand in the first sieve boxes 111 and the second sieve boxes 121 is screened.

Referring to fig. 1 and 4, a plurality of reset assemblies 3 are arranged on the side wall of the box body 1, each reset assembly 3 comprises a plurality of springs 301 fixed on the side wall of the box body 1, abutting plates 302 fixed at one ends of the springs 301, two sets of reset assemblies 3 are symmetrically arranged about the vibration assemblies 2, each set of reset assemblies 3 comprises two reset assemblies, each reset assembly 3 is respectively matched with the first sieve box 111 or the second sieve box 121, namely four reset assemblies 3 are abutted against the side walls of the first sieve box 111 and the second sieve box 121 respectively, the abutting plates 302 are pushed under the tension action of the springs 301, the abutting plates 302 push the first sieve box 111 or the second sieve box 121 to be close to the direction of the rotating shaft 201, and the first idler wheels 117 and the second idler wheels 128 are always abutted against the side wall of the cam 202.

Referring to fig. 1 and 2, the first material sieve 11 includes a first sieve box 111, a first sieve plate 112 fixedly disposed in the first sieve box 111, a plurality of first sieve holes 113 formed in the first sieve plate 112, a first pulley 114 fixed on a side wall of the first sieve box 111, and a first discharge hole 115 formed below the first sieve box 111, wherein a diameter of the first sieve hole 113 on the first sieve plate 112 located above is larger than a diameter of the first sieve hole 113 on the first sieve plate 112 located below, the first pulley 114 is slidably connected to the first guide plate, the first pulley 114 is a spool, and two ends of the spool abut against a side wall of the first guide plate.

Referring to fig. 1, the second material sieve 12 includes a second sieve box 121, a second sieve plate 122 fixedly disposed in the second sieve box 121, a plurality of second sieve holes 123 formed in the second sieve plate 122, a second pulley 124 fixed on a side wall of the second sieve box 121, and a second discharge hole 125 formed in the bottom of the second sieve box 121, the second pulley 124 is a spool, the second pulley 124 is slidably connected above the second guide plate, two ends of the second pulley 124 abut against the side wall of the second guide plate, a second material box 18 is disposed below the two sieve boxes 121, the second material box 18 is fixed in the box body 1, and a second discharge hole 181 is formed in the bottom of the second material box 18.

Referring to fig. 1, the diameter of the second screen opening 123 of the second upper screen plate 122 is smaller than the diameter of the first screen opening 113 of the first upper screen plate 112, the diameter of the second screen opening 123 of the second upper screen plate 122 is larger than the diameter of the first screen opening 113 of the first lower screen plate 112, and the diameter of the first screen opening 113 of the first lower screen plate 112 is larger than the diameter of the second screen opening 123 of the second lower screen plate 122.

Referring to fig. 1, one end of the first sieve plate 112 is fixedly connected with a first discharge plate 116, one side of the second sieve box 121 is provided with a slotted hole, the first discharge plate 116 is inserted into the slotted hole 127, the end part of the second sieve plate 122 is fixedly connected with a second discharge plate 126, the outer side of the box body 1 is provided with two first material boxes 16, the two second discharge plates 126 are respectively inserted into the side walls of the two first material boxes 16, the two first discharge plates 116 are respectively communicated with the two first material boxes 16, and the bottoms of the two first material boxes 16 are provided with a first discharge.

Referring to fig. 1 and 4, when the sand material is injected into the first sieve box 111 located above from the feed port 15, and the first sieve box 111 and the second sieve box 121 slide on the first guide frame 13 and the second guide frame 14 respectively, the first sieve box 111 divides the sand material into larger sand and smaller sand, the larger sand is screened by the first sieve plate 112 and then enters the second sieve box 121 located above through the first discharge plate 116, and the smaller sand is screened by the first sieve hole 113 on the first sieve plate 112 above and then passes through the first discharge port 115 and falls into the first sieve box 111 located below;

the second screen box 121 positioned above screens larger sand, and then screens larger sand, the sand leaves from the second discharge plate 126 and enters the first material box 16 for storage, or leaves from the first discharge opening 161 on the first material box 16, so that the collection by workers is convenient, and smaller sand in the larger sand leaves from the second screen hole 125 on the second screen plate 122 and enters the second material box 18 positioned below the second screen box 121 and is discharged from the second discharge opening 181 of the second material box 18;

the smaller sand entering the lower screen box I111 is screened by the screen plate I112 in the screen box I111, the larger sand in the smaller sand leaves from the discharging plate I116 and enters the screen box II 121 below, and the smaller sand in the smaller sand leaves from the screen holes on the screen plate I112 and is discharged through the discharging hole I115;

the second screening box 121 located below screens the sand again, the screened larger sand leaves from the second discharging plate 126 located below, enters the first bin 16 located below and is discharged from the first discharging hole 115, and the screened smaller sand leaves from the first discharging plate 116, enters the second bin 18 and is discharged through the second discharging hole 181 of the second bin 18.

Referring to fig. 1 and 4, box 1 bottom is equipped with collection subassembly 4, collection subassembly 4 is including fixing the drive actuating cylinder 401 in box 1 bottom, demountable installation is at the case 402 that gathers materials that drives the output of actuating cylinder 401, gather materials case 402 bottom and be fixed with four universal wheels 44, it is located two sieve case 111 bottoms to gather materials case 402, when the grit is discharged to a discharge gate 115 that is located the below, the grit directly drops in the case 402 that gathers materials, after the case 402 that gathers materials is full of grit, it promotes the case 402 that gathers materials to drive actuating cylinder 401 and removes, the gliding opening 17 of confession case 402 that gathers materials is seted up to box 1 bottom, it drives actuating cylinder 401 and promotes case 402 that gathers materials and leaves box.

Referring to fig. 1 and 2, the output end of the driving cylinder 401 is fixedly connected with a mounting plate 41, the section of the mounting plate 41 is arranged in a C shape, the side wall of the material collecting box 402 is fixedly connected with a plug board 42, the plug board 42 is plugged in the middle of the mounting plate 41, and the plug board 42 is fixed on the mounting plate 41 through a third bolt 43.

Referring to fig. 1 and 4, a suction pump 5 is disposed outside the case 1, a suction pipe 51 is connected to the suction pump 5, the suction pipe 51 is inserted into a sidewall of the case 1, and dust generated in the case 1 is sucked by the suction pump 5.

The implementation principle of the embodiment is as follows: the grit material is poured into box 1 from feed inlet 15 in, get into in the sieve case 111 that is located the top, sieve case 111 is great grit and less grit with the grit screening, great grit gets into in the sieve case 111 that is located the top, the secondary screening, less grit gets into and sieves in the sieve case 111 that is located the below, sieve case 111 through the below further model screening is advanced to less grit, bigger entering is gone into and is carried out the last time screening in sieve case two 121 that is located the below in less grit, the direct entering of litters that is litters is gathered in the case 402 that gathers materials to subdivide into a plurality of models with the grit.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides an energy-concerving and environment-protective type screening device for building materials grit of building engineering construction, includes box (1), its characterized in that: the material screening device is characterized in that two material screens I (11) and two material screens II (12) are connected in the box body (1) in a sliding mode, the material screens II (12) are located on one sides of the material screens I (11), the two material screens I (11) are arranged in the vertical direction, the two material screens II (12) are arranged in the vertical direction, two groups of guide frames I (13) are arranged in the box body (1), one group of guide frames I (13) comprises two guide frames I which are oppositely arranged on two side walls, the two guide frames I (13) are respectively located on two sides of the material screens I (11), the material screens I (11) comprise a screen box I (111), a screen plate I (112) fixedly arranged in the screen box I (111), a plurality of screen holes I (113) arranged on the screen plate I (112), a pulley I (114) fixed on the side wall of the screen box I (111), and a discharge hole I (115) arranged below the screen box I (111), and the pulley I (114) is connected to the material screens I (11, the diameter of a sieve pore I (113) of the sieve plate I (112) positioned above is larger than that of a sieve pore I (113) of the sieve plate I (112) positioned below, the material sieve II (12) comprises a sieve box II (121), a sieve plate II (122) fixedly arranged in the sieve box II (121), a plurality of sieve pore II (123) arranged on the sieve plate II (122), a pulley II (124) fixed on the side wall of the sieve box II (121), and a discharge hole II (125) arranged at the bottom of the sieve box II (121), the discharge hole II (125) is connected with a material receiving box (15), two groups of guide frames II (14) are fixedly arranged in the box body (1), one group of guide frames II (14) comprises two guide frames II which are oppositely arranged on the two side walls, the two guide frames II (14) are respectively positioned at two sides of the material sieve plate II (12), and the pulley II (124) is slidably connected to the top of the guide frames II (14), one end of each of the two first sieve plates (112) is connected with a first discharge plate (116), one side of each of the two second sieve boxes (121) is provided with a notch (127), the first discharge plates (116) are inserted into the notches (127), the end parts of the second sieve plates (122) are fixedly connected with second discharge plates (126), two first material boxes (16) are arranged on the outer side of the box body (1), the two first material boxes (16) are communicated with the second discharge plates (126), and a vibration assembly (2) for driving the first material sieves (11) and the second material sieves (12) to move is arranged in the box body (1);

the vibration component (2) comprises two rotating shafts (201) which are rotatably connected in the box body (1), a cam (202) which is fixedly connected on the rotating shafts (201), a driving shaft (203) which is rotatably connected in the box body (1), a driving motor (204) which is connected at the output end of the driving shaft (203), two bevel teeth I (205) which are fixedly sleeved on the driving shaft (203), and bevel teeth II (206) which are respectively sleeved on the two rotating shafts (201), the driving shaft (203) is arranged along the vertical direction, the two rotating shafts (201) are arranged in parallel, the two rotating shafts (201) are both arranged perpendicular to the driving shaft (203), the two first bevel gears (205) are meshed with the two second bevel gears (206), the cam (202) is positioned between the first material sieve (11) and the second material sieve (12), two sides of the cam (202) respectively abut against the first material sieve (11) and the second material sieve (12);

be equipped with a plurality of subassemblies that reset (3) on box (1) lateral wall, subassembly (3) that resets is including fixing spring (301), the fixed connection on box (1) lateral wall to touch panel (302) of supporting of spring (301) one end, and is a plurality of subassembly (3) that resets is equipped with two sets ofly, two sets of about box (1) symmetry support respectively on sieve case (111) and sieve case two (121) lateral walls to touch panel (302).

2. The energy-saving environment-friendly screening device for building material sandstone for building engineering construction according to claim 1, which is characterized in that: the diameter of the second screen hole (123) on the second screen plate (122) positioned above is smaller than that of the first screen hole (113) on the first screen plate (112) positioned above, and the diameter of the second screen hole (123) on the second screen plate (122) positioned above is larger than that of the first screen hole (113) on the first screen plate (112) positioned below.

3. The energy-saving environment-friendly screening device for building material sandstone for building engineering construction according to claim 1, which is characterized in that: at least two cams (202) are arranged along the length direction of the rotating shaft (201).

4. The energy-saving environment-friendly screening device for building material sandstone for building engineering construction according to claim 1, which is characterized in that: the side wall of the first sieve box (111) is rotatably connected with a first roller (117), the side wall of the second sieve box (121) is rotatably connected with a second roller (128), and two sides of the cam (202) are respectively abutted against the first roller (117) and the second roller (128).

5. The energy-saving environment-friendly screening device for building material sandstone for building engineering construction according to claim 1, which is characterized in that: the utility model discloses a screening machine, including box (1), collection subassembly (4) are including fixing driving actuating cylinder (401), demountable installation in the case (402) that gathers that drives actuating cylinder (401) output in box (1) bottom, gather materials case (402) and be located two sieve case (111) bottoms, box (1) bottom is seted up and is supplied to gather materials gliding opening (17) of case (402).

6. The energy-saving environment-friendly screening device for building material sandstone for building engineering construction according to claim 1, which is characterized in that: the dust collection box is characterized in that a dust collection pump (5) is arranged on the outer side of the box body (1), a dust collection pipe (51) is connected to the dust collection pump (5), and the dust collection pipe (51) penetrates through the side wall of the box body (1).