CN206356246U - A kind of novel building sand stone sieve sorting machine - Google Patents

Abstract

A new type of construction sand and gravel screening machine, which effectively solves the problems of low efficiency of current construction screens, affecting construction progress, and waste of raw materials; it includes a frame, which is connected to a vibrating screen through a shock absorbing device. Rollers installed in the frame, fixed blocks placed above the rollers under the vibrating screen, balls supporting the fixed blocks inside the frame, grooves for placing balls on the top of the frame, and fixed connections under the balls by springs On the frame, balls and springs are combined to form the shock-absorbing structure of the vibrating screen. The frame and the vibrating screen are connected through a connecting device. There is a limit block fixed on the frame outside the vibrating screen. The fine sieve is located above the coarse sieve, which constitutes a vibrating sieve that first filters small particle sizes and then filters large particle sizes; the utility model has a simple structure and high vibration efficiency, and can quickly separate sand and stones of different particle sizes. The time for sand screening is shortened, and the construction progress is accelerated.

Description

A new construction sand and stone screening machine

technical field

The utility model relates to the technical field of construction equipment, in particular to a novel construction sand and gravel screening machine.

Background technique

A sieve is a tool used by people to separate large and small solids. According to the use of the sieve, it can be divided into construction sieves, domestic sieves and agricultural sieves.

Sand is often used on building materials construction sites. Since the particle size of the sand is uneven when the sand is bought, and the particle size varies greatly, it is necessary to screen the sand through a construction sieve. It is a device specially used for sieving powdery substances and filtering fluids. The size of the sieve hole is smaller than the size of one of the two mixed substances and larger than the size of the other, so that the effect of sieving can be achieved. Sieves play a vital role in the process of screening building materials from granules to powders, so sieves are an indispensable part of many construction appliances. However, the sieves commonly used on construction sites are relatively simple. Generally, only one kind of sand and gravel can be filtered. Sometimes when it is necessary to screen out two kinds of sand with different particle sizes, two different sieves are needed to complete the work. It is too slow, which affects the efficiency, and the two kinds of sand cannot be screened at the same time. The small particle size must be screened before the large particle size screening can be carried out, which delays the construction progress.

Utility model content

In view of the above situation, in order to overcome the defects of the prior art, the purpose of this utility model is to provide a new type of construction sand and gravel screening machine, which effectively solves the problems of low efficiency of the current construction screen, affecting the construction progress, and wasting raw materials.

The technical solution is that the utility model includes a frame, which is characterized in that the frame is an inclined structure with a low front and a high rear, and the vibration screen is connected to the frame through a shock absorber, and the shock absorber includes a There is a fixed block placed above the rollers under the vibrating screen, which constitutes a structure in which the vibrating screen slides on the frame. The frame is equipped with balls supporting the fixed block, and the top of the frame is provided with grooves for placing balls. The lower part is fixedly connected to the frame by springs, and the balls and springs are combined to form the shock-absorbing structure of the vibrating screen. The frame and the vibrating screen are connected by a connecting device. It is a fine sieve and a coarse sieve. The fine sieve is located above the coarse sieve, forming a structure in which the vibrating screen first filters small particle sizes and then filters large particle sizes.

The utility model has the advantages of simple structure and high vibration efficiency, can quickly separate sand and stones with different particle sizes, shortens the time for sand screening, and speeds up the construction progress.

Description of drawings

Fig. 1 is the schematic diagram of the utility model.

FIG. 2 is a side view of FIG. 1 .

Fig. 3 is a schematic diagram of the connection device of the present invention.

Fig. 4 is a top view of the connection block of the present invention.

detailed description

The specific embodiments of the present utility model will be described in further detail below in conjunction with the accompanying drawings.

Given by Fig. 1 to Fig. 4, the utility model comprises frame 1, is characterized in that, frame 1 is the inclination structure of low front and high rear, and vibrating screen is connected on frame 1 through shock-absorbing device, and shock-absorbing device includes wear-through The rollers 13 arranged in the frame 1, and the fixed block 7 placed above the rollers 13 are arranged under the vibrating screen to form a structure in which the vibrating screen slides on the frame 1, and the balls 15 supporting the fixed block 7 are arranged in the frame 1 The top of the frame 1 is provided with a groove 14 for placing balls 15, and the bottom of the balls 15 is fixedly connected to the frame 1 through a spring 16. The combination of the balls 15 and the spring 16 constitutes a shock-absorbing structure of the vibrating screen, and the frame 1 and the vibrating screen pass through The connecting device 9 is connected, and the outer side of the vibrating screen is provided with a limit block 12 fixed on the frame 1. The vibrating screen is divided into a fine screen 2 and a coarse screen 3. The fine screen 2 is located above the coarse screen 3, forming a vibrating screen to filter small particles first. After filtering the structure of large particle size sand and gravel.

Baffles 4 are arranged on both sides of the vibrating screen.

A fine sand outlet 5 and a coarse sand outlet 6 are respectively provided below the fine sieve 2 and the coarse sieve 3 .

Wedge blocks 8 are fixed at the lower ends of the fine sieve 2 and the coarse sieve 3 .

An oblique chute 10 is installed below the fine sand outlet 5 and the coarse sand outlet 6 .

Described chute 10 is fixed by fixing frame 11.

Described connecting device 9 comprises the positioning plate 18 that is fixed on frame 1 side and the positioning block 17 that is fixed on the fixed block 7, offers oblong hole 20 on the positioning plate 18, and positioning plate 18 and positioning block 17 pass screw 19 Connect to form a structure that the vibrating screen can only slide on the frame 1 and cannot jump upwards.

The limiting block 12 is fixed on the frame 1 via screws.

When the utility model is in use,

Place the device on the fixed place where it is needed, turn on the power of the vibrating screen, and start to sieve the sand. The sand is first filtered by the fine sieve 2 on the vibrating screen, and the sand with a smaller particle size is screened out. Screened out from the fine sand outlet 5, when entering the coarse screen 3 from the fine screen 2, through the wedge block 8, due to the effect of the wedge block 8, the mixed sand will stay on the fine screen 2 for a while, and then enter the coarse screen 3 Above, the same sandstone on the coarse sieve 3 will have the same process, so that the unfiltered sand can be further filtered on the fine sieve 2 and the coarse sieve 3, so that the filtration accuracy is higher and there is no waste building materials.

The connecting device between the frame 1 and the vibrating screen ensures that the vibrating screen cannot move up and down on the frame 1. The vibrating screen can only slide in a single direction on the frame 1, and does not perform the random vibration of the traditional vibrating screen, making the vibration The vibration amplitude of the sieve is small, and the damage to the machine body is reduced to the minimum. When the vibrating screen slides on the frame 1, there are rollers 13 as guides, and a plurality of balls 15 are arranged on the top of the frame 1 to share the pressure of the rollers 13 and reduce friction.

The chute 10 under the fine sieve 2 and the coarse sieve 3 quickly transfers the filtered sand and gravel to avoid the blockage of the sieve hole caused by accumulation under the sieve.

Compared with the traditional screening device, the utility model has a simple structure, can filter and separate sand and gravel with different particle sizes at the same time, speeds up the construction process, shortens the construction time, and greatly improves the construction efficiency. The change of the connection mode reduces the vibration amplitude of the body itself, the vibration amplitude is small, the vibration frequency is high, and the screening is faster, and the reduction of the amplitude can reduce the damage of the body and prolong the service life of the equipment.

The utility model has the advantages of simple structure and high vibration efficiency, can quickly separate sand and stones with different particle sizes, shortens the time for sand screening, and speeds up the construction progress.

Claims (8)

1. A new construction sand and gravel screening machine, including a frame (1), characterized in that the frame (1) is an inclined structure with a low front and a high rear, and the frame (1) is connected to a vibrating screen through a shock absorber. The shock absorbing device includes rollers (13) pierced in the frame (1), and a fixed block (7) placed above the rollers (13) is provided under the vibrating screen to form a mechanism for the vibrating screen to slide on the frame (1). structure, the frame (1) is provided with a ball (15) supporting the fixed block (7), the top of the frame (1) is provided with a groove (14) for placing the ball (15), and the ball (15) is below the spring ( 16) Fixedly connected to the frame (1), balls (15) and springs (16) are combined to form a shock-absorbing structure of the vibrating screen. The frame (1) and the vibrating screen are connected through the connecting device (9). There is a limit block (12) fixed on the frame (1), and the vibrating screen is divided into a fine screen (2) and a coarse screen (3), and the fine screen (2) is located above the coarse screen (3), forming the vibrating screen The structure of filtering large particle size sand and gravel after filtering small particle size. 2. A new construction sand and gravel screening machine according to claim 1, characterized in that baffles (4) are provided on both sides of the vibrating screen. 3. A new construction sand and gravel screening machine according to claim 1, characterized in that, the fine sand outlet (5) and the coarse sand outlet are respectively provided under the fine screen (2) and the coarse screen (3) (6). 4. A new construction sand and gravel screening machine according to claim 1, characterized in that, the lower ends of the fine screen (2) and the coarse screen (3) are fixed with wedge-shaped blocks (8). 5. A new type of construction sand and gravel screening machine according to claim 3, characterized in that an oblique chute (10) is installed below the fine sand outlet (5) and the coarse sand outlet (6). 6. A new construction sand and gravel screening machine according to claim 5, characterized in that, the chute (10) is fixed by a fixing frame (11). 7. A new construction sand and gravel screening machine according to claim 1, characterized in that the connecting device (9) includes a positioning plate (18) fixed on the side of the frame (1) and a fixed The positioning block (17) on the block (7) and the positioning plate (18) are provided with oblong holes (20), and the positioning plate (18) and the positioning block (17) are connected by screws (19) to form a vibrating screen that can only be A structure that slides on the frame (1) without jumping upwards. 8. A new type of building sand and gravel screening machine according to claim 1, characterized in that, the limit block (12) is fixed on the frame (1) by screws.