CN210816119U - Self-cleaning combined screen sheet cross screen - Google Patents

Abstract

The utility model discloses a self-cleaning combined sieve sheet cross sieve, which comprises a frame, a feed inlet, a machine cabin, a slag discharge port and a sieving unit; the upper end surface of the frame is inclined downwards; the feed inlet is positioned at the high end of the upper end surface of the frame; the slag discharge port is positioned at the lower end of the upper end surface of the frame; the machine cabin is positioned below the upper end surface of the machine frame; the screening unit is provided with a plurality of and evenly distributed on the upper end face of the frame. The screening unit comprises a driving motor, a gear box and a screening shaft group; the driving motor is connected with the sieve shaft group through the gear box; the sieve shaft group is composed of a plurality of sieve shafts at equal intervals horizontally; gears matched with the sieve shaft in number and position are arranged in the gear box, and adjacent gears are meshed with each other; the gear is connected with the sieve shaft through a coupler; the sieve shaft is provided with a plurality of equidistant sieve sheets, and the sieve sheets on the adjacent sieve shafts are arranged in a staggered manner. Compared with the prior art, the beneficial effects of the utility model are that: the movement is stable and noiseless, the cross arrangement of the sieve sheets can generate rubbing self-cleaning, the blockage is not easy, and the working performance is reliable.

Description

Self-cleaning combined screen sheet cross screen

Technical Field

The utility model relates to a material divides the sieve field, specifically is a combination sieve piece cross sieve of self-cleaning.

Background

The classification of block and particle materials in the mineral separation industry is a common procedure. At present, the commonly used grading equipment is a vibration grading sieve, and an electric motor is used for driving an eccentric block to do circular motion, so that vibration is generated. Lay the sieve that has the mesh according to hierarchical granularity requirement on the sifter, the granule material that is less than the mesh falls into the undersize through the mesh and is collected by the collecting vat, and the cubic material that is greater than the mesh glides to the sieve mouth from the sifter and collects to realize hierarchical purpose. The vibration grading screen generates exciting force due to the rotation of the eccentric block, generates noise in the working process and generates harm to the surrounding environment and operators. The exciting force generated by the eccentric block acts on the frame wallboard of the grading screen, so that fatigue damage is easily caused, and the service life of the vibrating grading screen is limited.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of large noise, easy fatigue damage, wallboard cracking, short service life and the like of the vibration grading sieve in the prior art, the utility model provides a self-cleaning combined sieve sheet cross sieve, which has stable motion and no noise, and the cross arrangement sieve sheets generate rubbing self-cleaning, are not easy to block and have reliable working performance.

In order to achieve the above object, the utility model provides a following technical scheme: a self-cleaning combined sieve sheet cross sieve comprises a frame, a feed inlet, a machine bin, a slag discharge port and a sieving unit; the upper end surface of the frame is inclined downwards; the feed inlet is positioned at the high end of the upper end surface of the rack; the slag discharge port is positioned at the lower end of the upper end surface of the frame; the machine bin is positioned below the upper end surface of the machine frame; the screening unit is provided with a plurality of and evenly distributed on the upper end face of the rack.

As an optimization, the screening unit comprises a driving motor, a gear box and a screening shaft group; the driving motor is connected with the sieve shaft group through a gear box; the sieve shaft group is composed of a plurality of sieve shafts at equal intervals horizontally; gears matched with the sieve shaft in number and position are arranged in the gear box, and adjacent gears are meshed with each other; the gear is connected with the sieve shaft through a coupler.

Preferably, the input shaft of the gear box is provided with one and is connected with the driving motor through a speed reducer.

Preferably, a plurality of equidistant sieve sheets are arranged on the sieve shaft, and the sieve sheets on the adjacent sieve shafts are arranged in a staggered manner.

Preferably, the sieve sheets are of an oval structure, and the long and short axes of the sieve sheets on the adjacent sieve shafts are arranged in a staggered manner.

Preferably, the included angle between the long axis and the short axis of the screen sheet on the adjacent screen shafts is 90 degrees.

Preferably, scraping plates are arranged below the screen pieces.

And as optimization, a material distributing plate is arranged on the feeding hole.

As optimization, a protective cover is arranged on the screening unit; an observation window is arranged on the protective cover.

Preferably, a guide plate is arranged at the outlet end of the screening unit.

Compared with the prior art, the beneficial effects of the utility model are as follows: the screening principle of the traditional vibration grading screen is changed, and the functions of stable movement, no noise, difficult blockage and continuous uninterrupted work in the screening process are realized by arranging the elliptic screen pieces in a crossed manner and utilizing the sine wave disturbance principle generated during rotation of the elliptic screen pieces and the kneading principle of the crossed screen. By the method, the screening efficiency can be effectively improved by 1.5 times, the screen leakage rate is reduced by 10%, and the performance and the yield are improved.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a schematic perspective view of the present invention.

Figure 4 is the top view of the screening unit of the present invention.

Figure 5 is the front view of the screening unit of the present invention.

Fig. 6 is a schematic diagram of the distribution structure of the sieve sheet of the present invention.

The device comprises a frame 1, a feed inlet 2, a machine cabin 3, a slag discharge port 4, a screening unit 5, a material distribution plate 6, a driving motor 7, a gear box 8, a screening shaft 9, a screening sheet 10, a scraping plate 11 and a guide plate 12.

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" 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 simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A self-cleaning combined sieve sheet cross sieve comprises a frame 1, a feed inlet 2, a machine bin 3, a slag discharge port 4 and a sieving unit 5; the upper end surface of the frame 1 is inclined downwards; the feed inlet 2 is positioned at the high end of the upper end surface of the frame 1; the slag discharge port 4 is positioned at the lower end of the upper end surface of the frame 1; the machine bin 3 is positioned below the upper end surface of the machine frame 1; the screening units 5 are uniformly distributed on the upper end face of the frame 1. After the material passes through screening unit 5 screening, because self gravity directly falls into machine storehouse 3 inside, then can be through installing the conveyer belt in machine storehouse 3, the material after will screening is directly carried away.

The screening unit 5 comprises a driving motor 7, a gear box 8 and a screening shaft group; the driving motor 7 is connected with the sieve shaft group through a gear box 8; the sieve shaft group is composed of a plurality of sieve shafts 9 at equal intervals horizontally; gears which are matched with the sieve shafts 9 in number and position are arranged in the gear box 8, and adjacent gears are meshed with each other; the gear is connected with the sieve shaft 9 through a coupler. The input shaft of the gear box 8 is provided with one and is connected with the driving motor 7 through a speed reducer. And a single motor is adopted to synchronously drive the multi-sieve shaft 9 so as to realize the rotating function of the multi-sieve shaft.

The sieve shaft 9 is provided with a plurality of equidistant sieve sheets 10, and the sieve sheets 10 on the adjacent sieve shaft 9 are arranged in a staggered manner. The sieve sheets 10 are in an oval structure, and the long and short axes of the sieve sheets 10 on the adjacent sieve shafts 9 are arranged in a staggered manner. The included angle between the long axis and the short axis of the screen pieces 10 on the adjacent screen shafts 9 is 90 degrees. By arranging the elliptic sieve sheets in a crossed manner and utilizing the sine wave disturbance principle generated during rotation of the elliptic sieve sheets and the kneading principle of the crossed sieve, the functions of stable movement, no noise, difficult blockage and continuous and uninterrupted work in the sieving process are realized.

And scraping plates 11 are arranged below the sieve sheets 10. Used for cleaning the sieve sheet.

And a material distributing plate 6 is arranged on the feeding hole 2. So that the entering materials can be uniformly distributed.

A protective cover is arranged on the screening unit 5; an observation window is arranged on the protective cover. The whole is designed into a closed structure through the protective cover so as to reduce pollution, and meanwhile, observation and monitoring can be carried out through the observation window.

The outlet end of the screening unit 5 is provided with a guide plate 12. Play the effect of material transmission, ensure the continuity of conveying, prevent that the material from directly falling into the machine storehouse 3 inside through the screening.

The working principle is as follows:

the screening device is characterized by comprising a rack 1 which is welded by steel plates and is provided with an inclined angle and an inner bin, wherein parallel shaft screening units 5 according to different granularity requirements are fixed on the rack, one group or a plurality of groups of screening units 5 can be arranged, the screen holes (the size of the screen holes is adjusted according to the crossed arrangement of screen pieces 10) of each screening unit 5 are equal, and a speed reducer and a driving motor 7 are independently arranged. A gear box 8 is arranged between the screening unit 5 and the speed reducer. The gear box 8 has an input shaft and a plurality of output shafts. The output shaft is connected with a screen shaft 9 through a coupler, a middle gear is arranged in a gear box 8 to ensure that the turning directions of a group of screen shafts 9 are consistent, elliptical screen pieces 10 are arranged on the further screen shafts 9, and the elliptical screen pieces 10 are arranged in a combined mode at intervals. The long and short shafts of the oval sieve sheets 10 with adjacent shafts are vertically and crossly arranged, the upper end of a further rack is provided with a feed inlet 2, each group of sieving units 5 is provided with a shield to form a closed space with the rack, and the lower cavity of the rack 1 transfers the sieved materials away through transfer.

The material that will sieve adds the screening unit 5 through feed inlet 2 in, start driving motor 7 and realize the synchronous revolution of each sieve axle 9, through arranging the sieve piece 10 cross of oval structure, utilize the sine wave disturbance principle that produces when it is rotatory and the principle of rubbing of cross sieve, realize the steady noiselessness of motion of branch sieve in-process, be difficult for blockking up, the function of continuous uninterrupted duty, the material after the screening automatically falls into cabin 3 inside, do not have the material through the screening, continuous conveying through sieve piece 10 is until discharging from row cinder notch 4.

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.

Claims (10)

1. The utility model provides a combination sieve piece cross sieve of self-cleaning which characterized in that: comprises a frame (1), a feed inlet (2), a machine bin (3), a slag discharge port (4) and a screening unit (5); the upper end surface of the frame (1) is downward inclined; the feed inlet (2) is positioned at the high end of the upper end surface of the rack (1); the slag discharge port (4) is positioned at the lower end of the upper end surface of the rack (1); the machine bin (3) is positioned below the upper end surface of the machine frame (1); the screening units (5) are uniformly distributed on the upper end face of the rack (1).

2. A self-cleaning combination screen deck cross-over screen as claimed in claim 1, wherein: the screening unit (5) comprises a driving motor (7), a gear box (8) and a screening shaft group; the driving motor (7) is connected with the sieve shaft group through a gear box (8); the sieve shaft group is composed of a plurality of sieve shafts (9) at equal intervals horizontally; gears which are matched with the sieve shafts (9) in number and position are arranged in the gear box (8), and adjacent gears are meshed with each other; the gear is connected with the sieve shaft (9) through a coupler.

3. A self-cleaning combination screen deck cross-over screen as claimed in claim 2, wherein: an input shaft of the gear box (8) is provided with one and is connected with the driving motor (7) through a speed reducer.

4. A self-cleaning combination screen deck cross-over screen as claimed in claim 2, wherein: the screen shaft (9) is provided with a plurality of equidistant screen pieces (10), and the screen pieces (10) on the adjacent screen shafts (9) are arranged in a staggered manner.

5. A self-cleaning combination screen deck cross-over screen as claimed in claim 4, wherein: the sieve sheets (10) are of an oval structure, and the long and short axes of the sieve sheets (10) on the adjacent sieve shafts (9) are arranged in a staggered manner.

6. A self-cleaning combination screen deck cross-over screen as claimed in claim 5, wherein: the included angle between the long and short axes of the screen pieces (10) on the adjacent screen shafts (9) is 90 degrees.

7. A self-cleaning combination screen deck cross-over screen as claimed in claim 4, wherein: and scraping plates (11) are arranged below the sieve sheets (10).

8. A self-cleaning combination screen deck cross-over screen as claimed in claim 1, wherein: and a material distributing plate (6) is arranged on the feeding hole (2).

9. A self-cleaning combination screen deck cross-over screen as claimed in claim 1, wherein: a protective cover is arranged on the screening unit (5); an observation window is arranged on the protective cover.

10. A self-cleaning combination screen deck cross-over screen as claimed in claim 1, wherein: and a guide plate (12) is arranged at the outlet end of the screening unit (5).

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