CN113042365A

CN113042365A - Sand screening and classifying equipment for building

Info

Publication number: CN113042365A
Application number: CN202110606421.9A
Authority: CN
Inventors: 李俊; 郭毅; 刘文方; 司马卫平; 贺灵荣; 江凯; 赵苑迪
Original assignee: Sichuan University of Science and Engineering
Current assignee: Sichuan University of Science and Engineering
Priority date: 2021-06-01
Filing date: 2021-06-01
Publication date: 2021-06-29
Anticipated expiration: 2041-06-01
Also published as: CN113042365B

Abstract

The invention relates to the technical field of sand screening and classification, in particular to sand screening and classifying equipment for buildings; the sand screening and classifying equipment utilizes the motor to drive the rotating shaft I to rotate, the cam rotates to drive the box body to shake up and down, sand staying on the second screen mesh is accelerated to screen sand, the sand flows out of the discharging pipe, the sand passing through the second screen mesh falls onto the third screen mesh from the discharging port to be screened, the cam rotates to collide with the third screen mesh, the third screen mesh shakes, the screening speed of the sand is accelerated, the sand falling from the third screen mesh flows out of the discharging pipe, and the three screen meshes screen the sand, so that the sand can be conveniently classified and collected; this equipment feed inlet is provided with the scraper blade, avoids the feed inlet to take place to empty the sand and leads to the accumulational problem of feed inlet sand, drives pivot one through the motor and rotates, and one kind bevel gear, two kinds of bevel gears and pivot two rotate, drive the scraper blade and rotate together, and the scraper blade rotates strikes off the accumulational sand of feed inlet inner wall, avoids the feed inlet to pile up and causes the jam.

Description

Sand screening and classifying equipment for building

Technical Field

The invention relates to the technical field of sand screening and classification, in particular to sand screening and classification equipment for buildings.

Background

The sand typically comprises silica having a density of 2.65g/cm³I.e. 2.65t/m³Chemically stable and hard enough to resist weathering. Sand is composed of minerals and tiny rock fragments, which are formed by erosion and weathering of rocks, and its composition varies from place to place, depending on the source and condition of the local rocks.

The grain composition of the sand refers to the matching proportion of the sand particles. The void ratio of the sand depends on the matching degree of the grain diameters of all levels of the sand material, and the well graded sand can save cement and improve the compactness and strength of concrete and mortar. The thickness of the sand is represented by the fineness modulus Mx. The larger the fineness modulus, the coarser the sand. According to the size range of the fineness modulus, the sand is divided into coarse sand, medium sand, fine sand and extra fine sand.

The use of sand is very widespread: it is not only used for building, repairing road, filtering, cultivating and beautifying, but also used as quick-dissolving agent for smelting, and is also used as main material for making glass, and can be used as sand bag for making boxing and sand bag for flood control.

At present, some sand for building screening classification equipment now is not ideal to the screening effect of sand for building, lacks multistage screening mechanism and carries out classification screening to sand for building, and the screening quality of sand for building that obtains is relatively poor, and screening plant feed inlet causes the sand for building to pile up easily simultaneously, lacks scraper mechanism and clears up the long-pending sand of feed inlet department, leads to the sand to screen categorised work efficiency and reduces.

Disclosure of Invention

Aiming at the problems, the invention provides a sand screening and classifying device for buildings.

In order to achieve the above object, the present invention adopts the following technical solutions:

a screening and classifying device for building sand comprises a screening box, wherein a feed inlet is formed in the top end of the screening box, a discharge pipe is formed in the bottom end of the screening box, first sliding grooves are symmetrically formed in the upper portion of the inner wall of the screening box in the left-right direction, a second screening component is connected between the first sliding grooves in a sliding mode, second sliding grooves are symmetrically formed in the lower portion of the inner wall of the screening box in the left-right direction, a third screening component is connected between the second sliding grooves in a sliding mode, and support;

the middle part of the right end of the screening box is connected with a motor, the left end of the motor is connected with a first rotating shaft, the left end of the first rotating shaft extends into the screening box, a cam and a first bevel gear are sequentially connected from right to left, and the left end of the first rotating shaft is rotatably connected with the inner wall of the screening box; the upper end of the first type of bevel gear is meshed with the second type of bevel gear, and the upper end of the second type of bevel gear is connected with the first screening assembly.

Preferably, the second screening assembly comprises a first sliding block, the first sliding block is connected with the first sliding groove in a sliding mode, and the first sliding block is connected to the outer end of the box body in a bilateral symmetry mode; the box upper end is the opening, and the bottom bilateral symmetry is provided with the feed opening, and internally mounted has No. two screens, and No. two screen cloth left ends correspond and are connected with the unloading pipe, and the unloading pipe stretches out the screening case left.

Preferably, No. two screens slant is installed inside the box, and the installation direction is low right height on the left.

Preferably, the first screening assembly comprises a second rotating shaft, the second rotating shaft is connected with a second type of bevel gear, and the second rotating shaft extends upwards out of the protection box and also extends into the box body and is connected with a first screen; the top end of the first screen is contacted with the bottom end of the feeding hole, and the upper end of the protective box is connected with the bottom end of the box body through a symmetrical first spring.

Preferably, the first screen is circular, and the radius of the first screen is larger than that of the bottom of the feed inlet.

Preferably, the left and right symmetrical inner top of the screening box is connected with a baffle, and the baffle is positioned at the outer end of the first screen.

Preferably, the left and right symmetrical scraper blades are connected to the top end of the first screen, and the scraper blades are correspondingly matched with the inner wall of the feeding hole.

Preferably, the third screening subassembly includes slider two, and slider two and two sliding connection of spout are connected with No. three screens between two sliders two, and two bottoms of two sliders all are connected with No. two springs, and No. two spring bottoms all are connected with the fixed block, and fixed block symmetric connection is at screening incasement wall.

Preferably, the cam is matched with the bottom end of the box body, and the cam is matched with the third screen.

Due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. according to the sand screening and classifying equipment for the building, the motor is used for driving the rotating shaft I to rotate, the cam rotates to be matched with the bottom end of the box body to drive the box body to rock up and down, so that sand screening by the second screen is further accelerated, sand staying on the second screen flows out of the discharging pipe, sand passing through the second screen falls onto the third screen from the discharging port to be screened, the cam rotates to collide with the third screen, the third screen rocks to accelerate sand screening, sand falling from the third screen flows out of the discharging pipe, and the three screens screen the sand respectively to facilitate sand sorting and collection;

2. this sand screening classification equipment feed inlet is provided with the scraper blade, avoids the feed inlet to take place to empty the sand and leads to the accumulational problem of feed inlet sand, drives pivot one through the motor and rotates, and one kind bevel gear, two kinds of bevel gears and pivot two rotate, drive the scraper blade and rotate together, and the scraper blade rotates the in-process and strikes off the accumulational sand of feed inlet inner wall, avoids the feed inlet to pile up and causes the jam.

Drawings

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

FIG. 2 is a schematic structural diagram of example 2 of the present invention;

FIG. 3 is a connection diagram of a first screen assembly of the sand screening and classifying equipment for construction;

FIG. 4 is a schematic view of the inside of a box body of the sand screening and classifying equipment for building;

FIG. 5 is a connection diagram of a third screen assembly of the sand screening and classifying equipment for construction according to the present invention;

in the figure: 1-screening box, 101-support leg, 102-chute I, 103-chute II, 104-baffle, 105 discharge pipe, 2-feed inlet, 3-motor, 301-rotating shaft I, 4-second screen, 5-cam, 6-fixed block, 7-second spring, 8-slide block II, 9-third screen, 10-slide block I, 11-box body, 111-feed opening, 12-protection box, 13-first type bevel gear, 14-second type bevel gear, 15-first spring, 16-rotating shaft II, 17-first screen, 18-scraper and 19-feed pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.

Example 1

A building sand screening and classifying device comprises a screening box 1, wherein a feeding hole 2 is formed in the top end of the screening box 1, a discharging pipe 105 is formed in the bottom end of the screening box 1, sliding grooves I102 are symmetrically formed in the upper portion of the inner wall of the screening box 1 in the left-right direction, a second screening component is connected between the sliding grooves I102 in a sliding mode, sliding grooves II 103 are symmetrically formed in the lower portion of the inner wall of the screening box 1 in the left-right direction, a third screening component is connected between the sliding grooves II 103 in a sliding mode, and supporting legs 101;

the middle part of the right end of the screening box 1 is connected with a motor 3, the left end of the motor 3 is connected with a first rotating shaft 301, the left end of the first rotating shaft 301 extends into the screening box 1 and is sequentially connected with a cam 5 and a first-class bevel gear 13 from right to left, and the left end of the first rotating shaft 301 is rotatably connected with the inner wall of the screening box 1; the upper end of the first-type bevel gear 13 is meshed with a second-type bevel gear 14, and the upper end of the second-type bevel gear 14 is connected with a first screening assembly.

The second screening assembly comprises a first sliding block 10, the first sliding block 10 is in sliding connection with a first sliding groove 102, and the first sliding blocks 10 are symmetrically connected to the outer end of the box body 11 from left to right; the upper end of the box body 11 is an opening, the bottom end is provided with a feed opening 111 in a bilateral symmetry mode, the inside of the box body is provided with a second screen 4, the left end of the second screen 4 is correspondingly connected with a feed pipe 19, and the feed pipe 19 extends out of the screening box 1 leftwards, so that secondary screening can be performed on sand conveniently.

No. two screen cloth 4 slants are installed inside box 11, and the installation direction is low on the left side high on the right side, and the sand that is convenient for to stop on No. two screen cloth 4 flows from unloading pipe 19 department, and then collects the sand that sieves out.

The first screening assembly comprises a second rotating shaft 16, the second rotating shaft 16 is connected with a second type bevel gear 14, the second rotating shaft 16 extends upwards out of the protection box 12 and also extends into the box body 11, and is connected with a first screen 17; no. one screen cloth 17 top and the contact of 2 bottoms of feed inlets, the guard box 12 upper end is connected with 11 bottoms of box through a symmetrical spring 15, is convenient for carry out first step screening work to the sand that gets into.

The shape of the first screen 17 is circular, and the radius of the first screen 17 is larger than that of the bottom of the feed port 2, so that the first screen 17 can be used for fully screening sand conveniently.

The interior top bilateral symmetry of screening case 1 is connected with baffle 104, and baffle 104 is located the outer end of screen cloth 17 No. one, avoids screen cloth 17 to rotate the in-process, and the sand on screen cloth 17 receives centrifugal force to take place to splash.

Third screening subassembly includes slider two 8, and slider two 8 and two 103 sliding connection of spout are connected with No. three screen cloth 9 between two 8, and two 8 bottoms of two sliders all are connected with No. two spring 7, and No. two spring 7 bottoms all are connected with

fixed block

6, and 6 symmetric connection of fixed block are at screening case 1 inner wall, and No. three screen cloth 9 cooperates the effect of No. two spring 7 in addition with cam 5, and No. three screen cloth 9 rocks and accelerates the screening work efficiency to the sand.

Cam 5 and 11 bottom cooperations of box, cam 5 again with No. three screen cloth 9 cooperations, the screening speed of No. two screen cloths 4, No. three screen cloth 9 to the sand is accelerated to cam 5 of being convenient for.

This husky screening and classifying equipment for building's working method does:

as shown in fig. 1, 4 and 5 of the accompanying drawings, when a worker starts a motor 3, the motor 3 drives a first rotating shaft 301 to rotate, a cam 5, a first bevel gear 13, a second bevel gear 14, a second rotating shaft 16 and a first screen 17 rotate along with the first rotating shaft, the worker adds building sand to be screened from a feed inlet 2, the first screen 17 rotates to accelerate screening of the added sand, the sand falling from the first screen 17 falls into a box body 11, the cam 5 intermittently contacts and cooperates with the bottom end of the box body 11 due to rotation, the box body 11 is pushed upwards, a first sliding block 10 slides correspondingly in a first sliding groove 102, a first spring 15 plays a role of returning and simultaneously plays a role of connecting a protection box 12, the protection box 12 prevents the sand from entering into gear gaps of the first bevel gear 13 and the second bevel gear 14 to influence normal work of the first bevel gear 13 and the second bevel gear 14, box 11 rocks and to be accelerated No. two screen cloth 4 and sieve the sand, and the sand falls from No. two screen cloth 4, falls to No. three screen cloth 9 through feed opening 111 on, and the sand that sieves out flows to unloading pipe 19 through No. two screen cloth 4 to from unloading pipe 19 outflow, the staff is collected the sand that the screening obtained.

Cam 5 rotates No. three screen cloth 9 of intermittent type striking, and two 8 slides in two 103 in the spout, and No. two springs 7 receive the extrusion and compress, and cam 5 does not contact with No. three screen cloth 9, because No. two springs 7's restoring force, drives No. three screen cloth 9 and rocks, and then accelerates No. three screen cloth 9 to carry out screening work to the sand, and the sand drops and flows from discharging pipe 105 from No. three screen cloth 9, and the staff collects the sand machine that discharging pipe 105 flows.

The device front end corresponds No. three screen cloth 9 departments and is provided with a chamber door, treats that the sand sieves a period, in the interval time of the sand that does not add the needs to sieve, opens the chamber door and collects the sand of sieving on No. three screen cloth 9, through a screen cloth 17, No. two screen cloth 4 and No. three screen cloth 9 that set up, can carry out effectual screening to the sand, and the staff of being convenient for carries out the classified collection to the sand, obtains the sand that corresponds thickness degree size of architectural use.

Example 2

The difference from the embodiment 1 is that:

no. one screen cloth 17 top bilateral symmetry is connected with scraper blade 18, and scraper blade 18 corresponds and corresponds the cooperation with 2 inner walls of feed inlet, and motor 3 rotates and then drives scraper blade 18 and rotate, is convenient for strike off 2 inner walls of feed inlet accumulational sand, avoids 2 sand unloading speed of feed inlet to be slower or cause feed inlet 2 to take place to block up.

The working mode is as follows: as shown in fig. 2, fig. 3, fig. 4 and fig. 5 of the accompanying drawings, the screening and discharging method is the same as the first step of embodiment 1, and will not be described in detail herein, except that the control motor 3 drives the first rotating shaft 301 to rotate, the first bevel gear 13, the second bevel gear 14, the second rotating shaft 16 and the first screen 17 rotate, the first screen 17 rotates to drive the scraper 18 to rotate, and the scraper 18 rotates to scrape off the sand accumulated on the inner wall of the feed inlet 2, thereby increasing the discharging speed of the sand and the working efficiency of screening.

The motor, cam, the screen cloth that this patent adopted are the market, and its structure and control mode are prior art, no longer give unnecessary details in the description.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a husky screening classification equipment for building, includes screening case (1), its characterized in that: the screening box is characterized in that a feeding hole (2) is formed in the top end of the screening box (1), a discharging pipe (105) is arranged at the bottom end of the screening box, sliding grooves I (102) are symmetrically formed in the upper portion of the inner wall of the screening box (1) in the left-right direction, a second screening component is connected between the sliding grooves I (102) in a sliding mode, sliding grooves II (103) are symmetrically formed in the lower portion of the inner wall of the screening box (1) in the left-right direction, a third screening component is connected between the sliding grooves II (103) in a sliding mode;

the middle part of the right end of the screening box (1) is connected with a motor (3), the left end of the motor (3) is connected with a first rotating shaft (301), the left end of the first rotating shaft (301) extends into the screening box (1), a cam (5) and a first-class bevel gear (13) are sequentially connected from right to left, and the left end of the first rotating shaft (301) is rotatably connected with the inner wall of the screening box (1); the upper end of the first-class bevel gear (13) is meshed with a second-class bevel gear (14), and the upper end of the second-class bevel gear (14) is connected with a first screening component.

2. The sand screening and classifying equipment for construction as claimed in claim 1, wherein: the second screening assembly comprises a first sliding block (10), the first sliding block (10) is connected with a first sliding groove (102) in a sliding mode, and the first sliding block (10) is connected to the outer end of the box body (11) in a left-right symmetrical mode; the box (11) upper end is the opening, and the bottom bilateral symmetry is provided with feed opening (111), and internally mounted has No. two screen cloth (4), and No. two screen cloth (4) left end correspondence is connected with unloading pipe (19), unloading pipe (19) stretch out screening box (1) left.

3. The sand screening and classifying equipment for construction as claimed in claim 2, wherein: no. two screen cloth (4) slant is installed inside box (11), and the installation direction is low on the left side height on the right side.

4. The sand screening and classifying equipment for construction as claimed in claim 1, wherein: the first screening assembly comprises a second rotating shaft (16), the second rotating shaft (16) is connected with a second type bevel gear (14), and the second rotating shaft (16) extends upwards out of the protection box (12), extends into the box body (11) and is connected with a first screen (17); the top end of the first screen (17) is in contact with the bottom end of the feeding hole (2), and the upper end of the protection box (12) is connected with the bottom end of the box body (11) through a symmetrical first spring (15).

5. The building sand screening and classifying device according to claim 4, wherein: the first screen (17) is circular, and the radius of the first screen (17) is larger than that of the bottom of the feed port (2).

6. The sand screening and classifying equipment for construction as claimed in claim 1, wherein: the inner top of the screening box (1) is connected with baffle plates (104) in a bilateral symmetry mode, and the baffle plates (104) are located at the outer end of the first screen (17).

7. The building sand screening and classifying device according to claim 4, wherein: no. one screen cloth (17) top bilateral symmetry is connected with scraper blade (18), scraper blade (18) correspond and correspond the cooperation with feed inlet (2) inner wall.

8. The sand screening and classifying equipment for construction as claimed in claim 1, wherein: third screening subassembly includes slider two (8), slider two (8) and spout two (103) sliding connection are connected with No. three screen cloth (9) between two slider two (8), and two slider two (8) bottoms all are connected with No. two spring (7), No. two spring (7) bottoms all are connected with fixed block (6), and fixed block (6) symmetric connection is at screening case (1) inner wall.

9. The sand screening and classifying equipment for construction as claimed in claim 1, wherein: the cam (5) is matched with the bottom end of the box body (11), and the cam (5) is matched with the third screen (9).