CN112371251A

CN112371251A - Sand screening equipment for house building

Info

Publication number: CN112371251A
Application number: CN202011283484.7A
Authority: CN
Inventors: 王文伟; 梁萧
Original assignee: Taizhou Heyuan Construction Co ltd
Current assignee: Taizhou Heyuan Construction Co ltd
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-02-19

Abstract

The invention belongs to the field of house buildings, and particularly discloses sand screening equipment for house buildings, which comprises a rack, wherein a screening box is fixed on the rack, the upper end of the screening box is opened, a rotating sieve, a sliding sieve and a swinging sieve are sequentially arranged in the screening box from top to bottom, and the pore diameters of the rotating sieve, the sliding sieve and the swinging sieve are sequentially reduced; the rotary screen is rotatably connected to the inner wall of the screening box, the frame is rotatably connected with a plurality of grinding shafts, and the lower ends of the grinding shafts are fixedly provided with grinding discs; the sliding screen is connected to the inner wall of the screening box in a vertical sliding mode, and a first connecting rod is fixed to the upper end of the sliding screen; the swing screen comprises a first half screen and a second half screen which are respectively hinged on two opposite sides of the inner wall of the screening box, and an elastic belt is fixedly connected between the opposite ends of the first half screen and the second half screen; a second connecting rod is fixed between the elastic belt and the sliding screen. By adopting the scheme of the invention, the problem that sand is inconvenient to be classified and sieved at present can be solved.

Description

Sand screening equipment for house building

Technical Field

The invention belongs to the field of house buildings, and particularly relates to sand screening equipment for house buildings.

Background

The screening utilizes the sieve to make the fine particle material that is less than the sieve mesh in the material permeate the sifter, and the coarse particle material that is greater than the sieve mesh is detained on the sifter, thereby accomplish thick, the process of thin material separation, the sand is the indispensable a kind of material in the building engineering, often need carry out a large amount of sieve sands in the building construction engineering, large granule sand in the sand and some impurity are got rid of, make the purity of material improve, can increase building engineering's quality, building engineering is when sieving sand to the sand usually, can use the sand sieving mechanism.

The sand grain of sand the inside also divide into different grades, and the usage is different, and the particle size grade of the sand that needs is different, but at present be not convenient for carry out hierarchical screening to the sand to the screening efficiency to the sand is lower, can not satisfy people's needs.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides sand screening equipment for a house building, which aims to solve the problem that sand is inconvenient to be classified and screened at present.

In order to achieve the purpose, the invention adopts the following technical scheme:

the sand screening equipment for the house building comprises a rack, wherein a screening box is fixed on the rack, the upper end of the screening box is opened, a rotating screen, a sliding screen and a swinging screen are sequentially arranged in the screening box from top to bottom, and the screen pore diameters of the rotating screen, the sliding screen and the swinging screen are sequentially reduced; the rotary screen is rotationally connected with the inner wall of the screening box, an end face gear is fixed at the lower end of the rotary screen, a plurality of grinding shafts are rotationally connected on the rack, the grinding shafts are uniformly distributed along the circumferential direction of the rotary screen, a grinding disc is fixed at the lower end of the grinding shaft, and a gap for grinding sand is formed between the grinding disc and the rotary screen; the inner wall of the screening box is rotatably connected with a rotating shaft, the rotating shaft is positioned between the rotating screen and the sliding screen, and a driving gear meshed with the end face gear is fixed on the rotating shaft; the sliding screen is vertically and slidably connected to the inner wall of the screening box, a cam is fixed in the middle of the rotating shaft, a first connecting rod is fixed at the upper end of the sliding screen, and the upper end of the first connecting rod is slidably connected to the outer wall of the cam; the swing screen comprises a first half screen and a second half screen which are respectively hinged on two opposite sides of the inner wall of the screening box, and an elastic belt is fixedly connected between the opposite ends of the first half screen and the second half screen; a second connecting rod is fixed between the elastic belt and the sliding screen; the screening case lateral wall is equipped with four discharge gates that are located screening bottom of the case portion, rotating sieve top, sliding screen top, swing sieve top respectively, and the discharge gate all communicates there is the discharging pipe.

Compared with the prior art, the invention has the following beneficial effects:

in adding the screening case with the sand through the feeder hopper, rotate the pivot, the pivot drives drive gear, the cam rotates, drive gear drives face gear and rotates, face gear drives the rotating screen and rotates, the rotating screen drives the sand on it and rotates, rotate the grinding axle simultaneously, the grinding disc rotates along with the grinding axle, grind the sand that falls on the rotating screen, and the sand has along with the rotating screen rotates, and then better and grinding disc contact is ground, make the sand of caking scatter, the screening of the follow-up sand of being more convenient for.

The cam drives the first connecting rod to move vertically, the first connecting rod drives the sliding sieve to slide vertically, sand on the sliding sieve is shaken, the sliding sieve is convenient to sieve the sand, and the sliding sieve is prevented from being blocked by the sand. Drive the vertical motion of elastic webbing through the second connecting rod during the vertical slip of slip sieve, and then make first half sieve, half sieve of second take place the swing that deflects, first half sieve, elastic webbing atress between the half sieve of second is flexible, avoid first half sieve, appear the clearance between the half sieve of second, through the swing of deflecting of swing sieve, the sand makes a round trip to slide on the swing sieve, the interact power between the sand makes its further collision break up, so that the more thin sand of screening, further screen the sand on the swing sieve through the swing sieve.

The screen hole diameters of the rotary screen, the sliding screen and the swing screen are sequentially reduced, the rotary screen, the sliding screen and the swing screen are used for screening layer by layer, the sand is classified and screened, after a certain time, the discharge port can be opened, and each layer of residual sand is discharged through the discharge pipe, so that the classified screening of the sand is completed.

Further, all install first spring between first half sieve, the relative one side lower extreme of second half sieve and the screening bottom of the case portion.

Has the advantages that: support the relative one side of half first sieve, the half second sieve through first spring, avoid half first sieve, the half second sieve decurrent gravity to drag elastic webbing and second connecting rod, prolong elastic webbing's life.

Furthermore, the inner wall of the face gear is fixed with an annular guide block with an inverted cone-shaped inner ring.

Has the advantages that: the sand falling from the rotary screen is guided, the amount of the sand falling between the face gear and the driving gear is reduced, and the condition that the face gear and the driving gear are stuck by the sand is further reduced.

Furthermore, a plurality of grinding bulges are fixed at the lower end of the grinding disc.

Has the advantages that: the grinding force on the sand is further increased by the grinding protrusions to facilitate better grinding of the agglomerated sand.

Furthermore, a main shaft is rotatably connected to the rack, a first motor used for driving the main shaft to rotate is fixed to the rack, a driving gear is fixed to the main shaft, and driven gears meshed with the driving gear are fixed to the grinding shafts.

Has the advantages that: through the transmission of driving gear, driven gear, the main shaft can drive a plurality of grinding axles simultaneously and rotate, reduces the setting of power supply, simplifies the structure.

Further, a piston barrel is mounted below one side, opposite to the first half sieve and the second half sieve, of the lower portion of the first half sieve and the second half sieve, a piston is connected in the piston barrel in a sliding mode along the vertical direction, a piston rod is fixed to the upper end of the piston, the upper end of the piston rod abuts against the first half sieve or the second half sieve, a second spring is fixed between the lower end of the piston and the bottom of the piston barrel, a vent pipe is communicated with the lower portion of the piston barrel, and the opening of the vent pipe faces upwards.

Has the advantages that: when the end parts of the first half sieve and the second half sieve swing up and down, the piston rod is subjected to downward pressure of the first half sieve and the second half sieve or upward recovery action of the second spring, the piston rod moves up and down along with the upward pressure of the first half sieve and the second half sieve, the piston rod drives the piston to slide up and down in the piston barrel, air is fed or discharged from the lower part of the piston barrel, the air is fed or discharged through the vent pipe, the fed and discharged air acts on sand on the first half sieve and the second half sieve above the vent pipe to blow sand on the first half sieve and the second half sieve, the sand blockage of the first half sieve and the second half sieve is further reduced, and the sand screening is assisted to a certain extent through wind.

Drawings

Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present invention.

Fig. 2 is a schematic view of the overall structure of embodiment 2 of the present invention.

In the figure: 1. a main shaft; 2. a driving gear; 3. grinding the shaft; 4. a driven gear; 5. a grinding disc; 6. grinding the bulge; 7. a screening box; 8. rotating the screen; 9. a face gear; 10. a rotating shaft; 11. sliding the screen; 12. hinging a shaft; 13. a first half screen; 14. a discharge port; 15. a guide block; 16. a drive gear; 17. a cam; 18. a first link; 19. a second link; 20. a second half screen; 21. an elastic band; 22. a piston barrel; 23. a piston; 24. a piston rod; 25. a breather tube.

Detailed Description

The invention is further described in detail below with reference to the accompanying drawings, and specific embodiments are given.

Example 1

As shown in figure 1, house building sand screening installation, including the frame, be fixed with screening case 7 in the frame, screening case 7 upper end opening forms the feed inlet of sand, during the in-service use, can be at the feed hopper of feed inlet intercommunication back taper, through the feed hopper with the sand drop-in screening case 7 in.

The screening box 7 is internally provided with a rotating screen 8, a sliding screen 11 and a swinging screen from top to bottom in sequence, and the screen pore diameters of the rotating screen 8, the sliding screen 11 and the swinging screen are reduced in sequence so as to achieve the purpose of grading and screening sand layer by layer. The lateral wall of the screening box 7 is provided with four discharge holes 14 which are respectively positioned at the bottom of the screening box 7, above the rotating screen 8, above the sliding screen 11 and above the swinging screen, a valve is arranged in the discharge hole 14, the discharge holes 14 are communicated with a discharge pipe (not shown in the figure), and during actual use, the discharge pipe can be connected with auxiliary discharge of fans and the like in the prior art.

Rotating screen 8 rotates to be connected at screening box 7 inner walls, rotates in the frame and is connected with a plurality of axle 3 that grind, and a plurality of axle 3 that grind are along 8 circumference equipartitions of rotating screen, and axle 3 that grind stretches into screening box 7 in, and 3 lower extremes of axle that grind are fixed with mill dish 5, form the space that supplies the sand to mill between mill dish 5 and the rotating screen 8, and mill dish 5 lower extreme is fixed with a plurality of archs 6 of milling. The machine frame is rotatably connected with a main shaft 1, a first motor (not shown in the figure) for driving the main shaft 1 to rotate is fixed on the machine frame, an output shaft of the first motor is fixed at the upper end of the main shaft 1, a driving gear 2 is fixed on the main shaft 1, and driven gears 4 meshed with the driving gear 2 are fixed on the grinding shafts 3.

The lower end of the rotating screen 8 is fixed with an end face gear 9, the inner wall of the end face gear 9 is fixed with an annular guide block 15 with an inverted cone-shaped inner ring, the inner wall of the screening box 7 is rotatably connected with a rotating shaft 10, and a driving gear 16 meshed with the end face gear 9 is fixed on the rotating shaft 10. A cam 17 is fixed in the middle of the rotating shaft 10, a first connecting rod 18 is fixed at the upper end of the sliding screen 11, and the upper end of the first connecting rod 18 is slidably connected to the outer wall of the cam 17. The end of the rotating shaft 10 extends out of the screening box 7, a second motor (not shown in the figure) for driving the rotating shaft 10 to rotate is fixed on the frame, and an output shaft of the second motor is fixed with the rotating shaft 10.

The oscillating screen comprises a first half screen 13 and a second half screen 20, wherein the opposite ends of the first half screen 13 and the second half screen 20 are connected through an elastic belt 21, the elastic belt 21 can be selected from a rubber belt with elasticity in the prior art, and a second connecting rod 19 is fixed between the elastic belt 21 and the sliding screen 11. First half sieve 13, the relative one side lower extreme of second half sieve 20 all with screen 7 bottoms between install first spring (not shown in the figure), specific, first spring is fixed bottom screening box 7, first spring upper end and first half sieve 13, the half sieve 20 of second offset, during the in-service use, the elastic cylinder can be fixed to screening 7 bottoms to make the elastic cylinder cover establish in the first spring outside, carry out certain spacingly through the elastic cylinder to first spring. First half sieve 13, the one end that half sieve 20 of second carried on the back mutually and screening case 7 inner wall are articulated, and is concrete, and screening case 7 inner wall both sides all rotate and are connected with articulated shaft 12, and two articulated shafts 12 are fixed with first half sieve 13, half sieve 20 of second respectively.

During the specific use, in adding screening case 7 with the sand through the feeder hopper, start first motor and second motor, first motor drive main shaft 1 rotates, and main shaft 1 moves grinding shaft 3 through the drive belt of driving gear 2, driven gear 4 and rotates, and grinding disc 5 rotates along with grinding shaft 3, grinds the sand that falls on rotating screen 8. Second motor drive pivot 10 rotates, and pivot 10 drives drive gear 16, cam 17 and rotates, and drive gear 16 drives face gear 9 and rotates, and face gear 9 drives rotating sieve 8 and rotates, and rotating sieve 8 drives the sand on it and rotates, and then makes the better and the grinding disc 5 contact of sand on the rotating sieve 8 mill for the sand of caking scatters, the follow-up screening of being more convenient for.

The cam 17 drives the first connecting rod 18 to vertically reciprocate, the first connecting rod 18 drives the sliding screen 11 to vertically reciprocate to slide, and sand on the sliding screen 11 is shaken, so that secondary screening of the sand on the sliding screen 11 is completed.

When the sliding sieve 11 vertically slides, the second connecting rod 19 drives the elastic belt 21 to vertically move, so that the first half sieve 13 and the second half sieve 20 deflect and swing, sand slides back and forth on the first half sieve 13 and the second half sieve 20 along with the swing of the first half sieve 13 and the second half sieve 20, and sand on the swinging sieve is further screened.

The sand is screened layer by layer through the rotary screen 8, the sliding screen 11 and the swinging screen, after a certain time of screening, the valve in the discharge port 14 can be opened, and each layer of residual sand is discharged through the discharge pipe, so that the graded screening of the sand is completed.

Example 2

This example differs from example 1 only in that: referring to fig. 2, a piston barrel 22 is replaced by a first spring installed between the lower end of one side, opposite to the first half-sieve 13 and the second half-sieve 20, of the bottom of the screening box 7, specifically, a piston 23 is connected to the piston barrel 22 in a sliding manner along the vertical direction, a piston rod 24 is fixed to the upper end of the piston 23, the upper end of the piston rod 24 abuts against the first half-sieve 13 or the second half-sieve 20, a second spring is fixed between the lower end of the piston 23 and the bottom of the piston barrel 22, the lower portion of the piston barrel 22 is communicated with a vent pipe 25, an opening of the vent pipe 25 faces upwards and is communicated with an expanding cover, filter cloth is fixed to the expanding cover, and sand is prevented from falling.

In this embodiment, the piston rod 24 replaces the first spring in embodiment 1 to support the first half sieve 13 and the second half sieve 20, when the end portions of the first half sieve 13 and the second half sieve 20 swing up and down, the piston rod 24 is subjected to downward pressure of the first half sieve 13 and the second half sieve 20 or upward restoring action of the second spring, and then moves up and down, the piston rod 24 moves up and down to drive the piston 23 to slide up and down in the piston barrel 22, so as to realize air inlet or outlet at the lower portion of the piston barrel 22, air enters and exits through the vent pipe 25, and the entering and exiting air acts on the first half sieve 13 and the second half sieve 20 above the vent pipe 25 to blow sand thereon, so as to further reduce blockage of the first half sieve 13 and the second half sieve 20 by the sand, and assist sand screening to a certain extent by the wind force.

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

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. Sand screening installation for house building, including the frame, be fixed with the screening case in the frame, screening case upper end opening, its characterized in that: a rotary screen, a sliding screen and a swinging screen are sequentially arranged in the screening box from top to bottom, and the mesh diameters of the rotary screen, the sliding screen and the swinging screen are sequentially reduced;

the rotary screen is rotationally connected with the inner wall of the screening box, an end face gear is fixed at the lower end of the rotary screen, a plurality of grinding shafts are rotationally connected on the rack, the grinding shafts are uniformly distributed along the circumferential direction of the rotary screen, a grinding disc is fixed at the lower end of the grinding shaft, and a gap for grinding sand is formed between the grinding disc and the rotary screen; the inner wall of the screening box is rotatably connected with a rotating shaft, the rotating shaft is positioned between the rotating screen and the sliding screen, and a driving gear meshed with the end face gear is fixed on the rotating shaft;

the sliding screen is vertically and slidably connected to the inner wall of the screening box, a cam is fixed in the middle of the rotating shaft, a first connecting rod is fixed at the upper end of the sliding screen, and the upper end of the first connecting rod is slidably connected to the outer wall of the cam;

the swing screen comprises a first half screen and a second half screen which are respectively hinged on two opposite sides of the inner wall of the screening box, and an elastic belt is fixedly connected between the opposite ends of the first half screen and the second half screen; a second connecting rod is fixed between the elastic belt and the sliding screen;

the screening case lateral wall is equipped with four discharge gates that are located screening bottom of the case portion, rotating sieve top, sliding screen top, swing sieve top respectively, and the discharge gate all communicates there is the discharging pipe.

2. The sand screening apparatus for house construction according to claim 1, wherein: first springs are arranged between the lower end of one side, opposite to the first half sieve and the second half sieve, of the first half sieve and the bottom of the screening box.

3. The sand screening apparatus for house construction according to claim 1, wherein: and an annular guide block with an inverted cone-shaped inner ring is fixed on the inner wall of the end face gear.

4. The sand screening apparatus for house construction according to claim 1, wherein: the lower end of the grinding disc is fixed with a plurality of grinding bulges.

5. The sand screening apparatus for house construction according to claim 1, wherein: the grinding machine is characterized in that a main shaft is rotatably connected to the rack, a first motor used for driving the main shaft to rotate is fixed to the rack, a driving gear is fixed to the main shaft, and driven gears meshed with the driving gear are fixed to the grinding shafts.

6. The sand screening apparatus for house construction according to claim 1, wherein: the piston barrel is installed below one side, opposite to the first half sieve and the second half sieve, of the lower portion of the first half sieve and the second half sieve, a piston is connected in the piston barrel in a sliding mode along the vertical direction, a piston rod is fixed to the upper end of the piston, the upper end of the piston rod abuts against the first half sieve or the second half sieve, a second spring is fixed between the lower end of the piston and the bottom of the piston barrel, a vent pipe is communicated with the lower portion of the piston barrel, and the opening of the vent pipe faces upwards.