CN212310036U

CN212310036U - Screening sand device for civil engineering

Info

Publication number: CN212310036U
Application number: CN202020388892.8U
Authority: CN
Inventors: 刘波洲
Original assignee: Chongqing Vocational College of Transportation
Current assignee: Chongqing Vocational College of Transportation
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2021-01-08
Anticipated expiration: 2030-03-24

Abstract

The utility model discloses a sand screening device for civil engineering, relating to the technical field of civil engineering equipment; the sand screening device comprises a base for supporting, wherein a rolling screen is rotatably arranged on the base, and is obliquely arranged, so that sand can flow in the rolling screen conveniently; the rolling screen is fixedly arranged on a rotating shaft on the base, and the base is also provided with a driving mechanism for driving the rotating shaft to reciprocate; the roll screen below is provided with the second row hopper that is used for collecting through the roll screen sand, roll screen bottom exit is provided with the first row hopper that is used for collecting not through the roll screen sand, second row hopper bottom exit is provided with the conveyer belt, conveyer belt fixed mounting is on the base, the conveyer belt bottom sets up scrapes the material subassembly. The utility model improves the screening effect and reduces the labor intensity; the finished product material is convenient to discharge.

Description

Screening sand device for civil engineering

Technical Field

The utility model relates to a civil engineering equipment technical field specifically is a screening sand device for civil engineering.

Background

The civil construction refers to the work carried out in the building activity, sand can be used in the building activity, but the impurity in the sand is more, have clods, large-grained stones and the like, and the sand screening device is used in the construction; the sand sieving device is designed to imitate the working principle of manually utilizing an inclined screen to sieve sand, and adopts a roller sieve cylinder to ensure that sand materials repeatedly roll and slide to be fully dispersed and separated.

The roller screen drum of the sand screening device in the prior art usually rotates in a single direction, the moving direction of sand is single in the sand screening process, the separation of large and small particles is not facilitated, and the incomplete screening phenomenon is caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a screening sand device for civil engineering to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a sand screening device for civil engineering comprises a base for supporting, wherein a rolling screen is rotatably arranged on the base, and the rolling screen is obliquely arranged so as to facilitate the flow of sand in the rolling screen; the rolling sieve is fixedly arranged on a rotating shaft on the base, the base is also provided with a driving mechanism for driving the rotating shaft to reciprocate, and the driving mechanism is arranged for driving the rotating shaft to drive the rolling sieve to rotate in a reciprocating manner so as to sieve materials and achieve a material sieving effect; the utility model discloses a sand screening machine, including roll screen, conveyer belt, material bucket, material scraping component, the roll screen below is provided with the second row who is used for collecting through the roll screen sand and fights, roll screen bottom exit is provided with the first row of material bucket that is used for collecting not through the roll screen sand, second row is fought bottom exit and is provided with the conveyer belt, conveyer belt fixed mounting sets up the conveyer belt and is convenient for arrange the sand discharge that the material bucket was collected with the second, prevents through setting up the conveyer belt that the grit is piled up to the base bottom.

As a further aspect of the present invention: the driving mechanism comprises a gear fixedly sleeved on the rotating shaft and a first rack meshed with the gear, and the first rack reciprocates back and forth.

As a further aspect of the present invention: the lower end of the first rack is arranged in a sliding way on the base in a sliding mode, a driving piece is fixedly mounted at the upper end of the first rack, a mounting hole is formed in the driving piece, second racks are mounted on two sides of the mounting hole respectively, and an incomplete gear which is arranged in an intermittent mode and is meshed with the second racks on two sides in a self-rotating mode is further arranged in the mounting hole.

As a further aspect of the present invention: the material scraping component comprises a support fixedly installed on the base, a slide for slidably installing the sliding block is arranged inside the support, a material scraping rod with the upper end overhead is fixedly installed at the lower part of the conveying belt at the upper end of the sliding block, the material scraping rod penetrates through the support, an elastic part is sleeved on the outer side of the material scraping rod, and the upper end and the lower end of the elastic part are fixedly installed on the sliding block and the slide respectively.

As a further aspect of the present invention: the elastic piece is made of carbon structural steel.

As a further aspect of the present invention: the base is fixedly provided with a feed hopper, and an outlet of the feed hopper is arranged on the upper side inside the rolling screen.

Compared with the prior art, the beneficial effects of the utility model are that: sand to be screened is added into the rolling screen, and is intermittently meshed with second racks on two sides through the rotation of an incomplete gear to drive a driving piece to reciprocate, so that the first rack drives the gear to reciprocate back and forth, the rotating shaft is prevented from driving the rolling screen to rotate along a single direction, and the screening effect is improved; the finished product sand passing through the rolling screen falls into a second discharge hopper and is conveyed and discharged through a conveyer belt, and large-particle sand not passing through the rolling screen is discharged through a first discharge hopper; the elastic piece is arranged, so that the upper end of the scraping rod is arranged on the conveying belt in an overhead mode, sand on the conveying belt is conveniently scraped, the sand at the bottom of the conveying belt is prevented from scattering everywhere, and manual cleaning is avoided. The utility model improves the screening effect and reduces the labor intensity; the finished product material is convenient to discharge.

Drawings

Fig. 1 is a schematic structural view of a sand sieving device for civil engineering.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is a schematic view showing the structure of a driving member in the sand sieving apparatus for civil engineering.

In the figure: 1-base, 2-rolling sieve, 3-rotating shaft, 4-feed hopper, 5-scraping component, 6-gear, 7-first rack, 8-driving component, 9-incomplete gear, 10-second rack, 11-sliding rod, 12-conveying belt, 13-support, 14-sliding block, 15-elastic component, 16-scraping rod, 17-first discharge hopper and 18-second discharge hopper.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1 to 3, in embodiment 1 of the present invention, a sand sieving device for civil engineering includes a base 1 for supporting, wherein a rolling sieve 2 is rotatably installed on the base 1, and the rolling sieve 2 is obliquely installed to facilitate sand flowing inside the rolling sieve 2; the rolling sieve 2 is fixedly arranged on a rotating shaft 3 on the base 1, a driving mechanism for driving the rotating shaft 3 to reciprocate is further arranged on the base 1, and the driving mechanism is arranged for driving the rotating shaft 3 to drive the rolling sieve 2 to rotate in a reciprocating manner so as to sieve materials and achieve a material sieving effect; 2 below of rolling screen is provided with the second row of hopper 18 that is used for collecting the sand through 2 of rolling screen, 2 bottom exits of rolling screen are provided with the first row of hopper 17 that is used for collecting the sand that does not pass through 2 of rolling screen, 18 bottom exits of second row of hopper are provided with conveyer belt 12, conveyer belt 12 fixed mounting sets up conveyer belt 12 and is convenient for discharge the grit that the second row of hopper 18 was collected, prevents base 1 bottom pile up the grit through setting up conveyer belt 12, can in time carry the finished product grit of base 1 below, conveyer belt 12 bottom sets up scrapes material subassembly 5, sets up and scrapes material subassembly 5 and prevents the finished product grit that base 1 bottom scatters, needs artifical clearance.

Sand to be screened is added into the rolling screen 2, and the rotating shaft 3 drives the rolling screen 2 to reciprocate under the driving of the driving mechanism so as to screen the sand, thereby improving the screening effect; the finished sand that passes through the roller screen 2 falls into the second discharge hopper 18 and is then transported by the conveyor belt 12 for discharge, and large-sized sand that does not pass through the roller screen 2 is discharged through the first discharge hopper 17.

Example 2

Referring to fig. 1 to 3, the main difference between the present embodiment 2 and the present embodiment 1 is that the driving mechanism includes a gear 6 fixedly sleeved on the rotating shaft 3 and a first rack 7 engaged with the gear 6, the first rack 7 reciprocates back and forth and is engaged with the gear 6, and the gear 6 is driven to rotate back and forth.

Preferably, in this embodiment 7 lower extreme of first rack slides and sets up in the slide on base 1, 7 upper ends of first rack fixed mounting have driving piece 8, 8 inside mounting holes that set up of driving piece, and the mounting hole both sides install second rack 10 respectively, still be provided with the incomplete gear 9 that intermittent type and both sides second rack 10 meshing self-rotation set up in the mounting hole, rotate intermittent type and the second rack 10 meshing of both sides through incomplete gear 9, drive 8 reciprocating motion of driving piece, and then realize 7 drive gear 6 reciprocating motion of first rack, avoid pivot 3 to take rolling screen 2 to rotate along single direction, improve the screening effect.

One end of the driving piece 8, which is far away from the first rack 7, is fixedly provided with a slide bar 11 which is arranged in a slide way on the base 1 in a sliding way, and the arrangement is convenient for the driving piece 8 to move stably and orderly.

Scrape material subassembly 5 and include support 13 of fixed mounting on base 1, support 13 is inside to be provided with the slide that is used for slidable mounting slider 14, slider 14 upper end fixed mounting has upper end overhead at the scraping pole 16 of conveyer belt 12 below, it runs through support 13 setting to scrape material pole 16, scrape the setting of material pole 16 outside cover and put elastic component 15, elastic component 15 upper and lower both ends difference fixed mounting is on slider 14 and slide. The elastic piece 15 is arranged so that the upper end of the scraping rod 16 is arranged on the conveyer belt 12 in an overhead mode, so that sand on the conveyer belt 12 can be conveniently scraped, and sand at the bottom of the conveyer belt 12 is prevented from scattering everywhere.

The elastic member 15 is made of carbon structural steel, and this arrangement is easy to implement.

Fixed mounting has feeder hopper 4 on base 1, the export setting of feeder hopper 4 is in 2 inside upsides of roll screen, and this setting is convenient for add the grit to base 1 inside.

The utility model discloses a theory of operation is: sand to be screened is added into the rolling screen 2, and is intermittently meshed with the second racks 10 at two sides through the rotation of the incomplete gear 9 to drive the driving part 8 to reciprocate, so that the first rack 7 drives the gear 6 to reciprocate back and forth, the rotating shaft 3 is prevented from driving the rolling screen 2 to rotate along a single direction, and the screening effect is improved; the finished sand passing through the rolling screen 2 falls into a second discharge hopper 18 and is conveyed and discharged through the conveying belt 12, and large-particle sand not passing through the rolling screen 2 is discharged through a first discharge hopper 17; the elastic piece 15 is arranged, so that the upper end of the scraping rod 16 is arranged on the conveying belt 12 in an overhead mode, sand on the conveying belt 12 can be conveniently scraped, sand at the bottom of the conveying belt 12 is prevented from scattering everywhere, and manual cleaning is avoided. The utility model improves the screening effect and reduces the labor intensity; the finished product material is convenient to discharge.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, in the description of the present invention, "a plurality" means two or more unless otherwise specified. A feature defined as "first," "second," etc. may explicitly or implicitly include one or more of the feature.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A sand screening device for civil engineering comprises a base (1) for supporting, wherein a rolling screen (2) is rotatably arranged on the base (1), and the rolling screen (2) is obliquely arranged; the rolling screen (2) is fixedly arranged on a rotating shaft (3) on the base (1), and a driving mechanism for driving the rotating shaft (3) to reciprocate is further arranged on the base (1); the sand screening device is characterized in that a second discharging hopper (18) used for collecting sand passing through the rolling screen (2) is arranged below the rolling screen (2), a first discharging hopper (17) used for collecting sand not passing through the rolling screen (2) is arranged at an outlet at the bottom of the rolling screen (2), a conveying belt (12) is arranged at an outlet at the bottom of the second discharging hopper (18), and the conveying belt (12) is fixedly arranged on the base (1); and the bottom of the conveying belt (12) is provided with a scraping component (5).

2. The sand screening device for civil engineering work according to claim 1, wherein the driving mechanism comprises a gear (6) fixedly sleeved on the rotating shaft (3) and a first rack (7) engaged with the gear (6), and the first rack (7) reciprocates back and forth.

3. The sand screening device for civil engineering according to claim 2, characterized in that the lower end of the first rack (7) is slidably arranged in a slideway on the base (1), the upper end of the first rack (7) is fixedly provided with a driving piece (8), the driving piece (8) is internally provided with a mounting hole, two sides of the mounting hole are respectively provided with a second rack (10), and the mounting hole is also internally provided with an incomplete gear (9) which is intermittently meshed with the second racks (10) at two sides and is arranged in a self-rotating way.

4. The sand screening device for civil engineering according to claim 3, wherein the scraping component (5) comprises a support (13) fixedly mounted on the base (1), a slide way for slidably mounting the sliding block (14) is arranged in the support (13), a scraping rod (16) with the upper end overhead below the conveying belt (12) is fixedly mounted at the upper end of the sliding block (14), the scraping rod (16) penetrates through the support (13), an elastic part (15) is sleeved outside the scraping rod (16), and the upper end and the lower end of the elastic part (15) are respectively fixedly mounted on the sliding block (14) and the slide way.

5. Sand screening device according to claim 4, characterized in that said elastic element (15) is made of carbon structural steel.

6. Sand screening device for civil engineering according to any one of claims 1 to 5, characterized in that a feed hopper (4) is fixedly mounted on the base (1), the outlet of the feed hopper (4) being arranged on the upper side inside the rolling screen (2).