CN222724796U - Screening device - Google Patents

Abstract

The utility model relates to the technical field of stone screening, in particular to a screening device. The screening device comprises a screening separation box with an opening at the top, wherein a first conveying belt is sleeved in the screening separation box through a first upper support shaft and a first lower support shaft, a second conveying belt is sleeved below the first conveying belt through a second upper support shaft and a second lower support shaft, first screening plates are symmetrically arranged on the first conveying belt, second screening plates are symmetrically arranged on the second conveying belt, the first conveying belt and the second conveying belt are arranged in a staggered mode, one end of the first conveying belt is inclined towards the second conveying belt, and one end of the second conveying belt, which is located below the first conveying belt, is inclined towards the bottom of the screening separation box. The utility model can realize the multi-stage screening of the rubble waste automatically and is convenient for classifying and collecting the rubble waste with different sizes after screening.

Description

Screening device

Technical Field

The utility model relates to the technical field of stone screening, in particular to a screening device.

Background

Stone, also called stone, refers to rock used as a material, in which the rubble is an unshaped stone, in a natural state after mining, a large amount of rubble waste is generated after the rubble is crushed, and the requirements on the size of the rubble waste are different in different scenes, so that the rubble waste needs to be screened before use.

For example, chinese patent No. (CN 218925331U) discloses a stone screening device, wherein it is recorded that 'large-size stone can sequentially pass through a limiting plate corresponding to a first discharging hole and the first discharging hole, slide down to the outside from a first discharging pipeline, then slide down to the outside from the first discharging pipeline, stone with smaller size can strike one of the limiting plates and then fall down to a second conveyor belt, and the stone is transmitted to the outside from the second discharging pipeline through the second conveyor belt', and 'the existing sand screening device is mostly manually screened, the screening is slow, the current common practice is to obliquely place a screen first, and the screening is performed manually, so that the method is difficult to screen the stone well, and a large amount of labor is required, and the stone after the screening cannot be classified'.

In summary, the prior art has the technical problems that when the rubble waste in stones is screened at present, screening is usually performed manually after a screen plate is obliquely placed, and the screening process is time-consuming and labor-consuming and inconvenient to perform multi-stage screening.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the screening device, through the integral structure cooperation design, the multi-stage screening of the rubble waste can be realized automatically, and the classification collection of the rubble waste with different sizes after screening is convenient, compared with the manual screening by manually obliquely placing a screen plate, the screening efficiency is improved effectively, and the labor cost is saved.

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

The utility model discloses a screening device which comprises a screening box with an opening at the top, wherein a first conveying belt is sleeved in the screening box through a first upper support shaft and a first lower support shaft, a second conveying belt is sleeved below the first conveying belt through a second upper support shaft and a second lower support shaft, first screening plates are symmetrically arranged on the first conveying belt, second screening plates are symmetrically arranged on the second conveying belt, the first conveying belt and the second conveying belt are arranged in a staggered mode, one end of the first conveying belt is inclined towards the second conveying belt, and one end of the second conveying belt, which is positioned below the first conveying belt, is inclined towards the bottom of the screening box.

Preferably, the first conveyer belt is driven by a second low-speed motor arranged on the outer wall of the screening vertical box, and the second conveyer belt is driven by a third low-speed motor arranged on the outer wall of the screening vertical box.

Preferably, the inner bottom of the screening vertical box is respectively provided with a first material collecting box, a second material collecting box and a third material collecting box, the first material collecting box is positioned below the second lower support shaft, the second material collecting box is positioned below the first upper support shaft, and the third material collecting box is positioned below the second upper support shaft.

Preferably, the top of screening founds the case and is provided with first roof and second roof respectively, first roof and second roof separate the setting, the corresponding one side of first roof and second roof rotates respectively and is connected with first pivot and second pivot, be provided with first shrouding and second shrouding in first pivot and the second pivot respectively, the one end of first pivot and second pivot be provided with first flat gear respectively and with first flat gear engagement's second flat gear, the second pivot is provided with second flat gear one end and is provided with first bevel gear, be provided with first low-speed motor on the outer wall of screening founds the case, first output of low-speed motor is fixed with second bevel gear, second bevel gear and first bevel gear engagement.

Preferably, the inner sides of the first conveying belt and the second conveying belt are respectively provided with a limiting guide frame, the limiting guide frames are fixed with the screening separation boxes, the inner sides of the limiting guide frames are respectively connected with movable frames in a vertical sliding mode, the screening separation boxes are respectively connected with a first supporting rod and a second supporting rod in one-to-one correspondence with the two movable frames in a rotating mode, one ends of the first supporting rod and one end of the second supporting rod are respectively fixed with a first eccentric shaft and a second eccentric shaft, and the other ends of the first eccentric shaft and the second eccentric shaft are respectively and movably connected with the two movable frames.

Preferably, a transmission belt is connected between the first support rod and the second support rod in a transmission way, a third flat gear is fixed at one end, extending out of the screening box, of the second support rod, a driving motor is fixed outside the screening box, and a fourth flat gear is fixed at the output end of the driving motor and is meshed with the third flat gear.

Preferably, the lower side wall of the screening vertical box is rotatably connected with a material taking plate at the side of the first material collecting box, the second material collecting box and the third material collecting box.

Preferably, the extracting plate is fixed with the connecting seat on being close to the lateral wall on its top, the outside of screening founds the case and the position that corresponds with the connecting seat is fixed with spacing seat, the inboard sliding connection of spacing seat has the pull rod, the lower extreme of pull rod stretches into in the connecting seat and with connecting seat sliding connection, be fixed with the spring between pull rod and the spacing seat.

The utility model has the following beneficial effects:

According to the screening device provided by the utility model, through the integral structure matching design, such as the staggered inclined arrangement of the first conveying belt and the second conveying belt and the arrangement of the screen plates on the conveying belt, the multi-stage screening of the rubble waste can be realized automatically, the screened rubble waste with various sizes can be conveniently classified and collected, and compared with manual screening by manually and obliquely placing the screen plates, the screening efficiency is effectively improved, and the labor cost is saved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the inside of a screening bin;

FIG. 3 is a schematic view of the structure of the upper end of the screening bin;

FIG. 4 is a schematic view of the lower end of the screen bin;

FIG. 5 is a schematic view of the structure of the upper end of the extension case;

FIG. 6 is a schematic view of a structure between a first conveyor belt and a second conveyor belt;

in the drawing, 1, a screening vertical box, 2, a first upper support shaft, 3, a first lower support shaft, 4, a second upper support shaft, 5, a second lower support shaft, 6, a first conveying belt, 7, a second conveying belt, 8, a first sieve plate, 9, a second sieve plate, 10, a first collecting box, 11, a second collecting box, 12, a third collecting box, 13, a first top plate, 14, a second top plate, 15, a first rotating shaft, 16, a second rotating shaft, 17, a first flat gear, 18, a second flat gear, 19, a first bevel gear, 20, an extension outer box, 21, a first low-speed motor, 22, a second bevel gear, 23, a second low-speed motor, 24, a third low-speed motor, 25, a limit guide frame, 26, a movable frame, 27, a first eccentric shaft, 28, a first support rod, 29, a second eccentric shaft, 30, a second support rod, 31, a third flat gear, 32, a transmission belt, a driving motor, 34, a fourth flat gear, 35, a plate, 36, a connecting seat, 37, a first sealing plate, a second sealing plate, 41 and a material.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The technical means used in the examples are conventional means well known to those skilled in the art unless otherwise indicated.

Example 1

Referring to fig. 1-6, the utility model discloses a screening device, which comprises a screening box 1 with an opening at the top, wherein a first conveying belt 6 is sleeved in the screening box 1 through a first upper support shaft 2 and a first lower support shaft 3, a second conveying belt 7 is sleeved below the first conveying belt 6 through a second upper support shaft 4 and a second lower support shaft 5, a first screen plate 8 is symmetrically arranged on the first conveying belt 6, a second screen plate 9 is symmetrically arranged on the second conveying belt 7, the first conveying belt 6 and the second conveying belt 7 are arranged in a staggered mode, one end of the first conveying belt 6 is inclined towards the second conveying belt 7, and one end of the second conveying belt 7 positioned below the first conveying belt 6 is inclined towards the bottom of the screening box 1. It is to be noted that through the position design between first upper support shaft 2, first lower support shaft 3, second upper support shaft 4 and second lower support shaft 5 for first conveyer belt 6 and second conveyer belt 7 all are the slope setting, after the rubble waste material drops on first conveyer belt 6 and second conveyer belt 7, in order to conveniently carry out screening to the rubble waste material, first sieve 8 is fixed with to the outside symmetry of first conveyer belt 6, the outside symmetry of second conveyer belt 7 is fixed with second sieve 9, realize the multistage screening to the rubble waste material through first sieve 8 and second sieve 9, the outside of first sieve 8 and second sieve 9 all is laminated with screening vertical box 1 inboard, avoid rubble waste material card between conveyer belt and screening vertical box 1. The first screen plate and the second screen plate are perpendicular to the first conveyor belt and the second conveyor belt, and are arranged along the width direction of the conveyor belt, and preferably, the lengths thereof are the same as the width of the conveyor belt.

Further, in order to avoid exposing the electrical equipment outside the sieving box 1, an extension outer box 20 is fixed on the outer side of the sieving box 1, one ends of the first lower supporting shaft 3 and the second lower supporting shaft 5 penetrate through the sieving box 1 and extend into the extension outer box 20, a second low-speed motor 23 is fixed on one end of the first lower supporting shaft 3 in the extension outer box 20, an output end of the second low-speed motor 23 is fixed with the first lower supporting shaft 3, a third low-speed motor 24 is fixed on one end of the second lower supporting shaft 5 in the extension outer box 20, an output end of the third low-speed motor 24 is fixed with the second lower supporting shaft 5, the first lower supporting shaft 3 and the second lower supporting shaft 5 are driven to rotate through the second low-speed motor 23 and the third low-speed motor 24, the first conveying belt 6 and the second conveying belt 7 are conveniently driven to move, the first sieve plate 8 and the second sieve plate 9 are conveniently driven to move, and waste materials with different sizes are conveniently pushed to be conveyed upwards through the movement of the first sieve plate 8 and the second sieve plate 9 to finally drop downwards.

Further, for convenience to classify and collect the waste materials with different sizes in the screening process, the inner bottom of the screening vertical box 1 is respectively provided with a first material collecting box 10, a second material collecting box 11 and a third material collecting box 12, the first material collecting box 10 is located below the second lower support shaft 5, the second material collecting box 11 is located below the first upper support shaft 2, and the third material collecting box 12 is located below the second upper support shaft 4, so that the waste materials pushed by the first sieve plate 8 fall into the second material collecting box 11 to be collected, the waste materials pushed by the second sieve plate 9 fall into the third material collecting box 12 to be collected, and the waste materials with the smallest size after screening naturally fall into the first material collecting box 10 to be collected.

In order to facilitate the top of the screening vertical box 1 to be sealed, the top end of the screening vertical box 1 is respectively provided with a first top plate 13 and a second top plate 14, the first top plate 13 and the second top plate 14 are arranged separately, the holes generated by separation are the feeding holes, of course, the top of the screening vertical box can be sealed, and the top of the screening vertical box is provided with a through hole as the feeding holes. The corresponding sides of the first top plate 13 and the second top plate 14 are respectively connected with a first rotating shaft 15 and a second rotating shaft 16 in a rotating way, and a first sealing plate 40 and a second sealing plate 41 are respectively arranged on the first rotating shaft 15 and the second rotating shaft 16.

At the beginning of screening, in order to conveniently open first shrouding 40 and second shrouding 41 for form the pan feeding mouth of fixed size between first shrouding 40 and the second shrouding 41, the one end of first pivot 15 and second pivot 16 is provided with first pinion 17 and with the second pinion 18 of first pinion 17 meshing respectively, and first pinion 17 and second pinion 18 set up on the homonymy and lie in the top that extends outer box 20, second pivot 16 is provided with the first bevel gear 19 of being provided with of second pinion 18 one end, be provided with low-speed motor 21 on the outer wall of screening case 1, i.e. low-speed motor 21 sets up at the top that extends outer box 20, low-speed motor 21's output is fixed with second bevel gear 22, second bevel gear 22 meshes with first bevel gear 19.

Further, in order to facilitate opening the sieving box 1 to take out the first collecting box 10, the second collecting box 11 and the third collecting box 12, the lower side wall of the sieving box 1 is rotatably connected with a material taking plate 35 at the side of the first collecting box 10, the second collecting box 11 and the third collecting box 12. And in order to conveniently carry out spacing fixed to extracting plate 35, extracting plate 35 is close to and is fixed with connecting seat 36 on the lateral wall on its top, screening is fixed with spacing seat 37 in the outside of standing case 1 and the position that corresponds with connecting seat 36, the inboard sliding connection of spacing seat 37 has pull rod 38, the lower extreme of pull rod 38 stretches into in the connecting seat 36 and with connecting seat 36 sliding connection, still be fixed with spring 39 between pull rod 38 and the spacing seat 37.

Example 2

In a further optimization of the screening device provided in embodiment 1, specifically, as shown in fig. 1, 2 and 6, in the process that rubble waste falls onto the first conveying belt 6 and the second conveying belt 7 through the feeding hole and is screened by the first screen plate 8 and the second screen plate 9, in order to improve screening efficiency, limiting guide frames 25 are arranged on the inner sides of the first conveying belt 6 and the second conveying belt 7, the limiting guide frames 25 are fixed with the screening vertical boxes 1, movable frames 26 are connected to the inner sides of each limiting guide frame 25 in a vertically sliding manner, a first supporting rod 28 and a second supporting rod 30 which are in one-to-one correspondence with the two movable frames 26 are respectively connected to the screening vertical boxes 1 in a rotating manner, one ends of the first supporting rod 28 and the second supporting rod 30, which are positioned in the screening vertical boxes 1, are respectively fixed with a first eccentric shaft 27 and a second eccentric shaft 29, and the other ends of the first eccentric shaft 27 and the second eccentric shaft 29 are respectively movably connected with the two movable frames 26.

Further, a driving belt 32 is in transmission connection between one end of the first supporting rod 28 and one end of the second supporting rod 30 extending out of the sieving box, the driving belt 32 is located in the extending outer box 20, a third flat gear 31 is fixed at one end of the second supporting rod 30 extending out of the sieving box 1, a driving motor 33 is fixed outside the sieving box 1, and a fourth flat gear 34 is fixed at the output end of the driving motor 33 and is in meshed connection with the third flat gear 31. Wherein the driving motor 33, the third flat gear 31 and the fourth flat gear 34 are all positioned in the extension case 20.

In the present utility model, the disclosed low-speed motor one 21, low-speed motor two 23, low-speed motor three 24 and driving motor 33 may be of a known type in the market, and for those skilled in the art, the forward rotation and reverse rotation operations of the low-speed motor one 21, low-speed motor two 23, low-speed motor three 24 and driving motor 33 and the power supply to the low-speed motor one 21, low-speed motor two 23, low-speed motor three 24 and driving motor 33 all belong to conventional technical means, and the principles thereof will not be described in detail herein;

In the utility model, when screening is started, the first low-speed motor 21 is started to drive the second bevel gear 22 to rotate, the second bevel gear 22 is meshed with the first bevel gear 19 to drive the second rotating shaft 16 to rotate, and then the first flat gear 17 is meshed with the second flat gear 18 to drive the first rotating shaft 15 to synchronously rotate, so that the first sealing plate 40 and the second sealing plate 41 are driven to carry out mirror image movement, a feed inlet with a fixed size is formed between the first sealing plate 40 and the second sealing plate 41, and rubble waste is conveniently thrown into the feed inlet for screening;

The driving motor 33 is started to drive the fourth flat gear 34 to rotate when the first conveyor belt is put into operation, the second support rod 30 is driven to rotate through the engagement between the fourth flat gear 34 and the third flat gear 31, the first support rod 28 is driven to synchronously rotate along with the second support rod 30 through the transmission of the transmission belt 32, and the second eccentric shaft 29 and the first eccentric shaft 27 are driven to rotate at the same time, so that the two movable frames 26 are driven to lift and reciprocate under the guidance of the limiting guide frame 25 at the same time, the first conveyor belt 6 and the second conveyor belt 7 are driven to shake by a small amplitude at the same time, and accelerated screening is realized;

At this time, the rubble waste with larger size is piled up on the upper end of the first sieve plate 8 through the screening of the first sieve plate 8, while the rubble waste with normal size and smaller size falls to the outer side of the second conveyer belt 7 through the first sieve plate 8 and is screened through the second sieve plate 9, at this time, the rubble waste with normal size is piled up on the upper end of the second sieve plate 9, so that finally the rubble waste with smaller size falls into the first aggregate box 10 through the second sieve plate 9 for collection, as shown in fig. 2;

Finally, the second low-speed motor 23 and the third low-speed motor 24 are started to drive the first lower support shaft 3 and the second lower support shaft 5 to rotate, and then drive the first conveying belt 6 and the second conveying belt 7 to move, so that the first sieve plate 8 and the second sieve plate 9 are driven to move, the rubble waste with larger size and normal size is pushed to be conveyed upwards and finally falls into the second collecting box 11 and the third collecting box 12 respectively to be classified and collected, and the pull rod 38 is pulled to enable the pull rod 38 to slide out of the connecting seat 36, then the material taking plate 35 is conveniently opened, and further the first collecting box 10, the second collecting box 11 and the third collecting box 12 are conveniently taken out.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.

Claims (8)

1. The screening device comprises a screening box (1) with an opening at the top, and is characterized in that a first conveying belt (6) is sleeved in the screening box (1) through a first upper supporting shaft (2) and a first lower supporting shaft (3), a second conveying belt (7) is sleeved below the first conveying belt (6) through a second upper supporting shaft (4) and a second lower supporting shaft (5), a first screen plate (8) is symmetrically arranged on the first conveying belt (6), a second screen plate (9) is symmetrically arranged on the second conveying belt (7), one end of the first conveying belt (6) is arranged in a staggered mode, and one end of the second conveying belt (7) is inclined towards the second conveying belt (7), and one end of the second conveying belt (7) below the first conveying belt (6) is inclined towards the bottom of the screening box (1).

2. A screening apparatus according to claim 1, wherein the first conveyor belt (6) is driven by a second low-speed motor (23) provided on the outer wall of the screening box (1), and the second conveyor belt (7) is driven by a third low-speed motor (24) provided on the outer wall of the screening box (1).

3. A screening device according to claim 1, wherein the screening vertical box (1) is provided with a first collecting box (10), a second collecting box (11) and a third collecting box (12) respectively, the first collecting box (10) is located below the second lower support shaft (5), the second collecting box (11) is located below the first upper support shaft (2), and the third collecting box (12) is located below the second upper support shaft (4).

4. A screening device according to claim 1, wherein the top end of the screening vertical box (1) is respectively provided with a first top plate (13) and a second top plate (14), the first top plate (13) and the second top plate (14) are arranged separately, one corresponding sides of the first top plate (13) and the second top plate (14) are respectively connected with a first rotating shaft (15) and a second rotating shaft (16) in a rotating mode, the first rotating shaft (15) and the second rotating shaft (16) are respectively provided with a first sealing plate (40) and a second sealing plate (41), one ends of the first rotating shaft (15) and the second rotating shaft (16) are respectively provided with a first flat gear (17) and a second flat gear (18) meshed with the first flat gear (17), the second rotating shaft (16) is provided with a first bevel gear (19) at one end of the second flat gear (18), the outer wall of the screening vertical box (1) is provided with a low-speed motor (21), the output end of the low-speed motor (21) is fixedly provided with a bevel gear (22) and the second bevel gear (22) is meshed with the second bevel gear (19).

5. The screening device according to claim 1, wherein limiting guide frames (25) are arranged on the inner sides of the first conveying belt (6) and the second conveying belt (7), the limiting guide frames (25) are fixed with the screening vertical boxes (1), movable frames (26) are connected to the inner sides of the limiting guide frames (25) in a vertical sliding mode, a first supporting rod (28) and a second supporting rod (30) which are in one-to-one correspondence with the two movable frames (26) are respectively connected to the screening vertical boxes (1) in a rotating mode, a first eccentric shaft (27) and a second eccentric shaft (29) are respectively fixed to one ends of the first supporting rod (28) and one end of the second supporting rod (30), and the other ends of the first eccentric shaft (27) and the second eccentric shaft (29) are respectively and movably connected with the two movable frames (26).

6. A screening device according to claim 5, wherein a transmission belt (32) is in transmission connection between the first supporting rod (28) and the second supporting rod (30), a third flat gear (31) is fixed at one end of the second supporting rod (30) extending out of the screening box (1), a driving motor (33) is fixed outside the screening box (1), and a fourth flat gear (34) is fixed at the output end of the driving motor (33) and is in meshed connection with the third flat gear (31).

7. A screening device according to claim 3, wherein the lower side wall of the screening vertical box (1) is rotatably connected with a material taking plate (35) at the side of the first material collecting box (10), the second material collecting box (11) and the third material collecting box (12).

8. A screening device according to claim 7, wherein a connecting seat (36) is fixed on the outer side wall of the material taking plate (35) close to the top end of the material taking plate, a limiting seat (37) is fixed on the outer side of the screening box (1) and at a position corresponding to the connecting seat (36), a pull rod (38) is connected to the inner side of the limiting seat (37) in a sliding mode, the lower end of the pull rod (38) stretches into the connecting seat (36) and is connected with the connecting seat (36) in a sliding mode, and a spring (39) is fixed between the pull rod (38) and the limiting seat (37).