CN220716025U

CN220716025U - Sand screening device

Info

Publication number: CN220716025U
Application number: CN202322394023.2U
Authority: CN
Inventors: 刘亚男; 刘昊
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-09-05
Filing date: 2023-09-05
Publication date: 2024-04-05
Anticipated expiration: 2033-09-05

Abstract

The utility model relates to the technical field of sand screening boxes, in particular to a sand screening device which comprises a box body, a feeding funnel, a discharge hole and a motor, wherein the feeding funnel is arranged at the top of the box body, a screen is arranged in the box body below the feeding funnel, two sides of the inner end of the screen are hinged with power arms, the middle upper part of each power arm is hinged and fixed with the side wall of the box body respectively, the upper ends of the power arms are both hinged with connecting rods, the other ends of the connecting rods are eccentrically hinged with a rotating disc in a driving wheel arranged on the side wall of the box body, and the outer ends of the screen penetrate through impurity outlets on the side part of the box body. The sand screening device is simple in structure, reasonable in design, convenient to produce and operate, high in working efficiency, capable of greatly reducing labor intensity of workers, improving production efficiency, enabling the feeding hopper to evenly discharge the sand by arranging the rotating rollers, beneficial to rapid sand screening, capable of improving sand screening efficiency, and capable of solving the problem of inconvenient transfer of sand accumulation of the existing device.

Description

Sand screening device

Technical Field

The utility model belongs to a separation device, and particularly relates to a sand screening device.

Background

In bridge construction, concrete needs to be poured, and materials such as cement, sand and corresponding stones are needed to be utilized in concrete, sand needs to be screened before being used, a worker is generally needed to shovel the sand onto a screen for sand screening operation in the traditional sand screening, such as a sand screening device for building construction, which is disclosed as CN214718326U, and is disclosed as CN 216827207U, a construction sand screening device, the sand screening device is used for lifting the sand and screening the sand through the screen, the operation is time-consuming and labor-consuming, the sand is screened only through a mode that the sand naturally falls down, the falling speed is slow, the efficiency is influenced, and the sand is difficult to screen for some caking, so that the sand is needed to be broken manually, and then the screen is screened, and the sand screening efficiency is low. The publication number is CN210614320U, and the publication name is a sand screening device for constructional engineering, and the vibrator is arranged below the sand screening cylinder to accelerate falling, and the vibrator is arranged below the vibrating screen in the disclosed technology, so that the problem of slow natural falling is solved, but the vibrator causes vibration of the whole equipment during working, and equipment loss is accelerated. In addition, the existing sand screening device has the advantages that a large amount of sand is piled up and falls on the screen after sand is fed into the feeding hopper of the existing sand screening device, so that the sand screened out by the sand screening device is difficult to quickly screen, and meanwhile, the sand piled up and is difficult to transfer at the lower part of the sand screening device.

Disclosure of Invention

The utility model aims at overcoming the defects in the background art and provides a sand screening device.

The utility model relates to a sand screening device which comprises a box body, a feeding funnel, a discharge hole and a motor, wherein the top of the box body is provided with the feeding funnel, a screen is arranged in the box body below the feeding funnel, two sides of the inner end of the screen are hinged with power arms, the middle upper part of each power arm is hinged with the side wall of the box body respectively, the upper ends of the power arms are hinged with connecting rods, the other ends of the connecting rods are eccentrically hinged with a rotating disc in a driving wheel arranged on the side wall of the box body, the outer ends of the screen penetrate through an impurity outlet on the side part of the box body, the side wall of the box body in the impurity outlet is hinged with the screen through a suspension arm, a conveying belt is arranged in the box body below the screen, one end of the conveying belt penetrates through the discharge hole on the side part of the box body, the motor is fixedly arranged in the box body below the conveying belt, and the motor rotating wheel is arranged outside the box body and in transmission connection with the power wheel and the driving wheel of the conveying belt.

As a further improvement of the utility model, the screen is provided with an inclination angle, the inner end of the screen is higher than the outer end of the screen, and an adjusting screw is arranged between the top of the suspension arm and the top of the box body for adjusting the inclination angle of the screen.

As a further improvement of the utility model, two blanking rollers are arranged at the feeding hopper, the outer end gears of the blanking rollers are connected, and one blanking roller is in transmission connection with a motor.

As a further improvement of the utility model, the periphery of the blanking roller is provided with strip-shaped teeth.

As a further improvement of the utility model, the eccentric hinging points of the rotating discs on the inner walls of the two sides of the box body are connected with shaft rods, and the connecting rods are arranged on the shaft rods.

As a further improvement of the utility model, the bottom of the box body is provided with a supporting frame.

As a further improvement of the utility model, the lower part of the box body at the outer end of the conveyor belt is fixedly provided with a sand scraping plate.

The sand screening device is reasonable in structural design, convenient to produce and operate, high in working efficiency, capable of greatly reducing labor intensity of workers, capable of improving production efficiency, capable of evenly discharging by arranging the rotating rollers on the feeding hopper, beneficial to rapid sand screening, capable of avoiding the problem that a large amount of sand is accumulated and falls on a screen to be difficult to rapidly screen, capable of improving sand screening efficiency, capable of driving the screen to shake back and forth through the connecting rod assembly, further capable of achieving the vibration effect of the screen, and therefore capable of screening sand better, the screened sand falls on the driving belt and is conveyed out from the discharge hole through the driving belt, and the problem that the sand accumulated by the conventional device is inconvenient to transfer is solved.

Drawings

FIG. 1 is a longitudinal cross-sectional view of the present utility model;

fig. 2 is a side view of the present utility model.

Description of the embodiments

A sand screening apparatus according to the present utility model will be further described with reference to fig. 1 and 2.

The utility model relates to a sand screening device, which comprises a box body 1, a feeding funnel 2, a discharge hole 3 and a motor 4, wherein the top of the box body 1 is provided with the feeding funnel 2, the feeding funnel 2 is provided with two blanking rollers 14, one blanking roller 14 is in transmission connection with the motor 4, and the outer end gear of the blanking roller 14 is connected with the motor to enable the blanking roller to rotate oppositely, so that sand in the feeding funnel can uniformly fall onto a screen, and sand screening is facilitated. Meanwhile, the strip-shaped teeth 15 are arranged on the periphery of the blanking roller 14, so that relatively large sand blocks can be crushed, and the large sand blocks are reduced to flow out from the impurity outlet 10.

A screen 6 is arranged in the box body 1 below the feeding funnel 2, the high end of the screen 6 is arranged in the box body 1, and the low end of the screen 6 is prolonged to the outside of the box body 1 through an impurity outlet 10. The screen 6 is hinged with a power arm 7 in the box body 1 at both sides of the high end, the middle upper part of the power arm 7 is hinged with the side wall of the box body 1 respectively, the upper end of the power arm 7 is hinged with a connecting rod 8, and the other end of the connecting rod 8 is eccentrically hinged with a rotating disc 5 in a driving wheel 9 arranged on the side wall of the box body 1. In the box 1, the lower extreme of screen cloth 6 is articulated with box 1 lateral wall and through davit 11, is installed conveyer belt 12 in the box 1 of screen cloth 6 below, and the discharge gate 3 of box 1 lateral part is passed to one end of conveyer belt 12, and discharge gate 3 and impurity export 10 opposite arrangement. The motor 4 is fixedly arranged in the box body 1 at the lower part of the conveyor belt 12, and the rotating wheel of the motor 4 is arranged outside the box body 1 and is in transmission connection with the power wheel and the driving wheel 9 of the conveyor belt 12. The screen cloth 6 have inclination, its inner high outer end bottom, install adjusting screw 13 between the top of davit 11 and the top of box 1 and be used for adjusting the inclination of screen cloth 6, control angle alright control the outflow speed of impurity, inclination is big impurity outflow fast, the screening sand is not thorough relatively, otherwise then impurity outflow is slow, the screening sand is thorough. The eccentric hinging points of the rotating discs 5 on the inner walls of the two sides of the box body 1 are connected with the shaft rods 16, the connecting rods 8 are arranged on the shaft rods 16, and the rotating discs 5 at the two ends can synchronously rotate when the driving wheels 9 rotate, so that the power arms 7 at the inner ends of the screen mesh synchronously shake, and the purpose of screen mesh shake is achieved. The bottom of the box body 1 is provided with a supporting frame 17. The lower part of the box body 1 at the outer end of the conveyor belt 12 is fixedly provided with a sand scraping plate 18, so that sand is prevented from adhering to the conveyor belt body and entering the box body.

Claims

1. The sand screening device comprises a box body (1), a feeding funnel (2), a discharge hole (3) and a motor (4), and is characterized in that the top of the box body (1) is provided with the feeding funnel (2), a screen (6) is arranged in the box body (1) below the feeding funnel (2), two sides of the inner end of the screen (6) are hinged with power arms (7), the middle upper part of each power arm (7) is hinged and fixed with the side wall of the box body (1) respectively, the upper ends of the power arms (7) are hinged with connecting rods (8), the other ends of the connecting rods (8) are eccentrically hinged with a rotating disc (5) arranged inside a driving wheel (9) arranged on the side wall of the box body (1), the outer end of the screen (6) penetrates through an impurity outlet (10) on the side part of the box body (1), the side wall of the box body (1) inside the impurity outlet (10) is hinged with the screen (6) through a suspension arm (11), a conveying belt (12) is arranged in the box body (1) below the screen (6), one end of the conveying belt (12) penetrates through the side part of the box body (1) and is fixed in the discharge hole (3) of the box body (4), the rotating wheel of the motor (4) is arranged outside the box body (1) and is in transmission connection with the power wheel and the driving wheel (9) of the conveyor belt (12).

2. A sand screening device according to claim 1, characterized in that the screen (6) has an inclination angle, the inner end of which is higher than the outer end, and an adjusting screw (13) is arranged between the top of the boom (11) and the top of the box (1) for adjusting the inclination angle of the screen (6).

3. A sand screening device according to claim 1 or 2, characterized in that two blanking rollers (14) are arranged at the feeding funnel (2), the outer ends of the blanking rollers (14) are connected with each other through gears, and one of the blanking rollers (14) is in transmission connection with the motor (4).

4. A sand screening device according to claim 3, characterized in that the periphery of the blanking roller (14) is provided with bar-shaped teeth (15).

5. A sand screening device according to claim 1 or 2, characterized in that the shaft lever (16) is connected between the eccentric hinge points of the rotating discs (5) on the inner walls of the two sides of the box body (1), and the connecting rod (8) is mounted on the shaft lever (16).

6. A sand screening device according to claim 1 or 2, characterized in that the bottom of the box (1) is provided with a support frame (17).

7. A sand screening device according to claim 1 or 2, characterized in that a sand scraping plate (18) is fixed to the lower part of the casing (1) at the outer end of the conveyor belt (12).