CN205833598U - Sand screen - Google Patents

Abstract

The utility model provides a sand screening device, which comprises a frame, a flat roller screen cylinder, a sand screen net and a hopper; the sand screen net is located under the roller screen cylinder, and the hopper is located under the sand screen net; There is a driving device that can rotate the roller screen drum; the output shaft of the single-phase motor is connected with a coupling, and a rotating shaft is arranged between the two couplings on both sides of the roller screen drum, and the rotating shaft passes through the roller screen drum; There is a crushing device inside the drum, and the crushing device is fixed on the rotating shaft; two single-phase motors on both sides of the roller screen drum are fixed on the frame; the two sides of the screen screen are respectively equipped with vibration devices that can vibrate the screen screen; Two vibrating motors on both sides of the sand screen are fixed on the frame. The utility model has the advantages of simple structure, low manufacturing cost, and convenient and simple use; the sand is screened twice, and the screening is more thorough, and the screened sand fully meets the requirements of use; Screening without sand waste.

Description

Sand screening device

technical field

The utility model belongs to the technical field of construction machinery, in particular to a sand screening device.

Background technique

In the construction industry, sand is one of the main building materials. However, the raw materials of sand are relatively rough, and generally need to be filtered before use. Due to the relatively large amount of sand used in construction sites, sand screening devices are widely used in construction sites. The existing sand screening machines are generally divided into drum sand screening machines, washing drum sand screening machines and vibrating screen sand screening machines. However, most of the existing sand screening machines are disposable sand screening machines, and the sand screening is not thorough enough. The waste materials often contain a large amount of fine sand, causing waste.

Application publication number CN105642539A, the invention patent of application publication date 2016.06.08 discloses a sand screening machine with circular screening function, including frame, conveyor belt, sand screening cylinder, sand screening net, rotating motor and vibration motor; sand screening cylinder There are external gear rings at both ends of the outer side of the machine, the outer gear rings are connected with the torque output shaft of the rotating motor, and the inner gear rings matching the outer gear rings are arranged on the frame, and the sand screen is installed horizontally inside the sand screen cylinder. And the two ends of the sand screen are fixedly connected with the vibrating motor, and the vibrating motor and the rotating motor are all fixed on the frame. The sand screening machine with circulation screening function of the invention passes through the sand screening cylinder and the sand screening net arranged inside the sand screening cylinder, so that when the sand and gravel are screened, the sand and gravel can be double screened in the sand screening net and the sand screening cylinder. At the same time, a cycle can be formed, no additional process is required, the operation is convenient, and the screening is sufficient and thorough. However, this invention has many transmission parts among each other, the possibility of mechanical failure is relatively large, the manufacturing cost is relatively high, and the volume is also relatively large, so it is not suitable for wide use.

Contents of the invention

The purpose of the utility model is to provide a sand screening device to overcome the problems of complex structure, easy mechanical failure and incomplete sand screening in the existing sand screening device.

The technical scheme that the utility model adopts is:

The sand screening device includes a frame, a flat roller screen drum, a sand screen net and a hopper; the sand screen net is located directly below the drum screen drum, the hopper is located directly below the sand screen net, and a sand outlet is provided at the lower end of the hopper; The circumferential surface of the sieve cylinder is mesh-shaped, and the left and right side walls of the sieve cylinder are plate-shaped; the two sides of the sieve cylinder are respectively equipped with driving devices that can rotate the sieve cylinder, and each drive device includes a single-phase motor And a coupling, the output shaft of the single-phase motor is connected with the coupling, a rotating shaft is arranged between the two couplings on both sides of the roller screen, the rotating shaft passes through the roller screen, and the rotating shaft and the left and right sides of the roller screen The two side walls are fixedly connected; there is a crushing device inside the roller screen cylinder, and the crushing device is fixed on the rotating shaft; the two single-phase motors on both sides of the roller screen cylinder are fixed on the frame; The vibrating device for vibrating the sand screen, each vibrating device includes a vibration motor and a T-shaped vibration guide plate, the vibration motor is connected to the lower end of the T-shaped vibration guide plate, and the upper end of the T-shaped vibration guide plate is connected to the sand screen; The two vibration motors on both sides of the sand net are fixed on the frame.

Wherein, the crushing device includes a hammer handle and a breaking hammer fixed on the hammer handle, and the hammer handle is fixed on the rotating shaft.

A plurality of hammer handles are fixed on the above-mentioned rotating shaft.

In addition, the pore diameter of the sand screen is smaller than the pore diameter of the circumferential surface of the roller sieve cylinder.

Furthermore, a sand inlet is provided on the roller screen, and a cover plate is placed on the sand inlet.

The beneficial effects of the utility model are as follows: 1. The structure is simple, the manufacturing cost is low, and the use is convenient; 2. After the sand is screened twice, the screen is more thorough, and the screened sand fully meets the use requirements. 3. There is a crushing device inside the roller screen drum, which can crush the agglomerated sand and then screen it, without causing waste of sand.

Description of drawings

Fig. 1 is the structural representation of sand screening device of the present utility model;

Fig. 2 is a schematic diagram of the structure among the crushing device, the rotating shaft, the coupling and the single-phase motor.

In the figure: 1-frame, 2-rolling screen drum, 3-sand screen, 4-hopper, 5-sand outlet, 6-single-phase motor, 7-coupling, 8-rotating shaft, 9-vibration motor , 10-T-shaped vibration guide plate, 11-hammer handle, 12-breaking hammer, 13-cover plate.

detailed description

As shown in Figure 1, the utility model provides a sand screening device, comprising a frame 1, a flat roller sieve drum 2, a sand screen 3 and a hopper 4; the sand screen 3 is located directly below the drum 2, The hopper 4 is located directly below the sand screen 3; the roller sieve cylinder 2 is provided with a sand inlet, the sand inlet is covered with a cover plate 13, and the lower end of the hopper 4 is provided with a sand outlet 5.

The circumferential surface of the roller sieve cylinder 2 is net-shaped, and the left and right side walls of the roller sieve cylinder 2 are plate-shaped. Both sides of the roller sieve cylinder 2 are respectively provided with driving devices capable of rotating the roller sieve cylinder 2, each driving device includes a single-phase motor 6 and a coupling 7, the output shaft of the single-phase motor 6 and the coupling 7 connection, a rotating shaft 8 is arranged between the two couplings 7 on both sides of the roller screen drum 2, the rotating shaft 8 passes through the roller screen drum 2, and the rotating shaft 8 is fixedly connected with the left and right plate-shaped side walls of the roller screen drum 2; Two single-phase motors 6 on both sides of the roller screen cylinder 2 are fixed on the frame 1. In addition, a crushing device is provided inside the roller screen cylinder 2 . The crushing device includes a hammer handle 11 and a breaking hammer 12 fixed on the hammer handle 11 . A plurality of hammer handles 11 are fixed on the rotating shaft 8 .

The both sides of sieve sand net 3 are respectively provided with the vibration device that can make sieve sand net 3 vibrate, each vibration device comprises a vibration motor 9 and a T-shaped vibration guide plate 10, the vibration motor 9 and the T-shaped vibration guide plate 10 The lower end is connected, and the upper end of the T-shaped vibration guide plate 10 is connected with the sand screen 3; two vibration motors 9 on both sides of the sand screen 3 are fixed on the frame 1.

In addition, the aperture of the sand screen 3 is smaller than the aperture of the circumferential surface of the roller sieve cylinder 2 .

The working principle of the utility model is: open the cover plate 13, pour sand into the roller sieve cylinder 2 through the sand inlet, start the single-phase motor 6, rotate the rotating shaft 8, and the rotating shaft 8 drives the roller sieve cylinder 2 and the roller sieve cylinder 2 The internal crushing device rotates synchronously, the sand rolls in the roller sieve drum 2, and at the same time, the agglomerated sand is also broken up under the impact of the crushing device. The sand falls directly on the sand screen 3 after being screened by the roller sieve drum 2 for the first time, and the vibrating motor 9 makes the sand screen 3 vibrate violently through the T-shaped vibration guide plate 10, and the sand on the sand screen 3 is subjected to a second vibration. After the second screening, the sand that meets the particle size passes through the sand screen 3 and falls into the hopper 4, and the qualified sand flows out through the sand outlet 5 of the hopper 4 and is manually collected. After the sand screening is completed, the single-phase motor 6 and the vibrating motor 9 stop working, and the roller sieve cylinder 2 is manually rotated, the sand inlet of the roller sieve cylinder 2 is turned to the bottom, and the sand remaining in the roller sieve cylinder 2 is poured out. The sieve net 3 is lifted from the T-shaped vibration guide plate 10, and the sand remaining on the sieve net 3 is poured out.

Because the aperture of the sieve 3 is smaller than the aperture of the roller 2 peripheral surface, the sand is screened twice by the roller 2 and the sieve 3, and the screened sand fully meets the requirements for use, and the sieving efficiency is high.

The above content is a further detailed description of the utility model in conjunction with specific preferred embodiments. It cannot be determined that the specific embodiment of the utility model is limited to this. Under the premise of the new concept, some simple deduction or replacement can also be made, which should be regarded as belonging to the utility model and the patent protection scope is determined by the submitted claims.

Claims (5)

1. Sand screen, it is characterised in that: include the husky net (3) of frame (1), the roller screen cylinder (2) of horizontal, sieve and hopper (4)；Sieve sand Net (3) is positioned at the underface of roller screen cylinder (2), and hopper (4) is positioned at the underface of the husky net (3) of sieve, and hopper (4) lower end is provided with out sand Mouth (5)；The periphery of described roller screen cylinder (2) is netted, and two, the left and right of roller screen cylinder (2) sidewall is tabular；Described roller screen cylinder (2) Both sides be respectively arranged with the driving means that roller screen cylinder (2) can be made to rotate, each driving means include a monophase machine (6) and One shaft coupling (7), the output shaft of monophase machine (6) is connected with shaft coupling (7), two shaft couplings (7) of roller screen cylinder (2) both sides Between be provided with rotating shaft (8), rotating shaft (8) passes roller screen cylinder (2), and two, left and right of rotating shaft (8) and roller screen cylinder (2) sidewalls are fixing even Connect；Described roller screen cylinder (2) is internally provided with breaker, and breaker is fixed in rotating shaft (8)；The two of roller screen cylinder (2) both sides Individual monophase machine (6) is fixed in frame (1)；The both sides of the husky net (3) of described sieve are respectively arranged with and sieve sand net (3) can be made to vibrate Vibrating device, each vibrating device includes that a vibrating motor (9) and a T-shaped lead vibration plate (10), vibrating motor (9) and T-shaped The lower end leading vibration plate (10) connects, and T-shaped is led the upper end net (3) husky with sieve of vibration plate (10) and is connected；Two of husky net (3) both sides of sieve are shaken Galvanic electricity machine (9) is fixed in frame (1).

Sand screen the most according to claim 1, it is characterised in that: described breaker includes hammer handle (11) and is fixed on Quartering hammer (12) on hammer handle (11), hammer handle (11) is fixed in rotating shaft (8).

Sand screen the most according to claim 2, it is characterised in that: it is fixed with multiple hammer handle (11) in described rotating shaft (8).

Sand screen the most according to claim 1, it is characterised in that: the aperture of the husky net (3) of described sieve is less than roller screen cylinder (2) The aperture of periphery.

Sand screen the most according to claim 1, it is characterised in that: it is provided with sand inlet on described roller screen cylinder (2), enters sand Cover plate (13) it is stamped on Kou.