CN212759588U

CN212759588U - Multistage vibration separating screen for mine

Info

Publication number: CN212759588U
Application number: CN202020947177.3U
Authority: CN
Inventors: 赵阳培
Original assignee: Jiangsu Jianzhu Institute
Current assignee: Jiangsu Jianzhu Institute
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-03-23
Anticipated expiration: 2030-05-29

Abstract

The utility model discloses a multistage vibration separating screen in mine belongs to mine architectural equipment technical field. A first-stage sieve and a second-stage sieve which are obliquely arranged are arranged in the box body, and the higher ends of the first-stage sieve and the second-stage sieve are connected with a transmission rod; the upper end and the lower end of the transmission rod penetrate through the box body, a turntable is mounted on an output shaft of the speed reducing motor, and the turntable is hinged with the upper end of the transmission rod through a connecting rod; a dust collector is arranged on one side of the box body and is provided with three dust suction ports; three dust absorption openings of the dust collector are respectively arranged at the inner sides of the first-stage discharge opening, the second-stage discharge opening and the fine material discharge opening. The utility model discloses a slider-crank mechanism is formed between transfer line, connecting rod, carousel, gear motor, can directly drive one end luffing motion of first order sieve, second grade sieve, cooperates the damping seat of the other end, realizes the vibration screening of first order sieve, second grade sieve; this structure has reduced the vibration of box itself greatly, reduces noise at work.

Description

Multistage vibration separating screen for mine

Technical Field

The utility model relates to a mine architectural equipment technical field specifically is a multistage vibration separating screen in mine.

Background

The vibrating screen works by utilizing reciprocating rotary vibration generated by vibrator excitation, the upper rotary heavy hammer of the vibrator makes the screen surface generate plane rotary vibration, the lower rotary heavy hammer makes the screen surface generate conical surface rotary vibration, the screen surface generates complex rotary vibration by the combined action effect, the vibration track is a complex space curve, the projection of the curve on the horizontal plane is a circle, the projection on the vertical plane is an ellipse, the amplitude can be changed by adjusting the excitation force of the upper rotary heavy hammer and the lower rotary heavy hammer, and the curve shape of the motion track of the screen surface and the motion track of materials on the screen surface can be changed by adjusting the space phase angle of the upper heavy hammer and the lower heavy hammer.

The Chinese patent discloses a stone screening mechanism, which comprises a feed hopper, a spraying cavity, a screening cavity, a fine material bin, a vibrator, a motor and a dust collector, wherein a first-stage screen mesh, a second-stage screen mesh and a third-stage screen mesh which are gradually reduced in screen meshes and arranged in parallel are sequentially arranged in the screening cavity from top to bottom, the gradient of the first-stage screen mesh, the second-stage screen mesh and the third-stage screen mesh is 15 degrees, elastic hooks are arranged at two ends of the first-stage screen mesh, the second-stage screen mesh and the third-stage screen mesh, and the screening cavity is divided into the first-stage screening cavity, the second-stage screening cavity and the third-; the vibrator comprises a base arranged on the screening cavity, an installation main shaft is arranged on the base, a main eccentric block and an auxiliary eccentric block are respectively arranged at two ends of the installation main shaft, and the installation main shaft is connected with a motor; the dust collector is respectively communicated with the primary screening cavity, the secondary screening cavity, the tertiary screening cavity and the fine material bin.

The problems of the prior art are as follows: the vibration source in the scheme is a main eccentric block, an auxiliary eccentric block, a motor and the like on the upper part, the whole equipment vibrates, so that the energy consumption is high, the noise is high, and the screening efficiency is low because the amplitude of each level of screen is not easy to control; the smoke and dust easily overflows from the discharge ports of all levels and the concentrate outlet, the working condition environment is damaged, and the health of operators is not facilitated.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a multistage vibration separating screen in mine.

The utility model discloses a following technical scheme realizes: a multistage vibration separating screen for a mine comprises a box body, wherein a primary screen and a secondary screen which are obliquely arranged are arranged in the box body, and the primary screen and the secondary screen are arranged up and down; a feed inlet is formed in the upper part of the box body, and a high-pressure sprayer is mounted on the inner side of the feed inlet; the side wall of the box body is provided with a first-stage discharge hole and a second-stage discharge hole which are opposite to the first-stage sieve and the second-stage sieve; the bottom of the box body is conical, and a fine material discharge hole is formed in the lowest position of the bottom of the box body; the higher ends of the first-stage sieve and the second-stage sieve are connected with a transmission rod; the transmission rod is vertically arranged, the upper end and the lower end of the transmission rod penetrate through the box body, and a linear bearing is arranged between the upper end and the lower end of the transmission rod and the box body; the upper end of the box body is provided with a speed reducing motor, an output shaft of the speed reducing motor is provided with a turntable, and the turntable is hinged with the upper end of the transmission rod through a connecting rod; a dust collector is arranged on one side of the box body and provided with three dust suction ports; three dust absorption openings of the dust collector are respectively arranged at the inner sides of the first-stage discharge opening, the second-stage discharge opening and the fine material discharge opening.

It further comprises the following steps: the number of the transmission rods is two, and the upper ends of the transmission rods are fixedly connected through a cross beam; the connecting rod is positioned at the center of the two transmission rods; one end of the connecting rod is hinged with the rotary table, and the other end of the connecting rod is hinged with the middle of the cross beam.

The side edges of the first-stage sieve and the second-stage sieve are provided with edges extending towards two sides; and a rubber strip is fixed on the upper edge of the edge and is in contact with the inner wall of the box body.

And a vibration damping seat is connected between the lower end of the first-stage sieve and the second-stage sieve and the box body.

Compared with the prior art, the beneficial effects of the utility model are that: a crank-slider mechanism is formed among the transmission rod, the connecting rod, the rotary table and the speed reducing motor, and can directly drive one ends of the primary sieve and the secondary sieve to swing up and down and be matched with a vibration damping seat at the other end to realize the vibration screening of the primary sieve and the secondary sieve; the structure greatly reduces the vibration of the box body and the working noise; a plurality of dust absorption mouths of the dust collector are respectively communicated with the inner sides of the discharge holes, so that the overflow of smoke dust is greatly reduced, and the health of operators is ensured.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a second embodiment of the present invention;

in the figure: 1. a box body; 2. a feed inlet; 3. secondary screening; 4. primary screening; 5. a transmission rod; 6. a high pressure sprayer; 7. a linear bearing; 8. a connecting rod; 9. a first-stage discharge hole; 10. a secondary discharge hole; 11. a fine material discharge hole; 12. a reduction motor; 13. a turntable; 14. a vacuum cleaner; 15. a cross beam; 16. an edge; 17. a sleeve; 18. a damping spring;

21. a base; 22. a vibration damping strut; 22-1, a lower sleeve; 22-2, a plunger rod; 22-3, an upper sleeve; 22-4, an upper limiting spring; 22-5, a main spring; 22-6 of lower limiting spring; 23. a connecting seat; 24. an upper hinge; 24-1, ear plates; 24-2, lower rotating shaft; 24-3, a lower bearing; 25. a lower hinge; 25-1, an upper bearing; 25-2 and an upper rotating shaft.

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.

Example one

As shown in fig. 1, the multistage vibrating and separating screen for mines comprises a box body 1, wherein a first-stage screen 4 and a second-stage screen 3 which are obliquely arranged are arranged in the box body 1, and the first-stage screen 4 and the second-stage screen 3 are arranged up and down; a feed inlet 2 is formed in the upper part of the box body 1, and a high-pressure sprayer 6 is arranged on the inner side of the feed inlet 2; the side wall of the box body 1 is provided with a primary discharge hole 9 and a secondary discharge hole 10 which are opposite to the primary sieve 4 and the secondary sieve 3; the bottom of the box body 1 is conical, and a fine material discharge hole 11 is formed in the lowest position of the bottom of the box body 1.

The improvement of the embodiment is that:

the higher ends of the first-stage sieve 4 and the second-stage sieve 3 are hinged with a transmission rod 5. The transmission rod 5 is vertically arranged, the upper end and the lower end of the transmission rod 5 penetrate through the box body 1, and a linear bearing 7 is arranged between the upper end and the lower end of the transmission rod 5 and the box body 1. The same longitudinal position of the transmission rod 5 is provided with a clapboard to prevent the material from overflowing to the right side. The number of the transmission rods 5 is two, and the upper ends of the transmission rods 5 are fixedly connected through a cross beam 15. The upper end of the box body 1 is provided with a speed reducing motor 12, and the output shaft of the speed reducing motor 12 is provided with a rotating disc 13. The connecting rod 8 is positioned at the central position of the two transmission rods 5; one end of the connecting rod 8 is hinged with the rotary table 13, and the other end of the connecting rod 8 is hinged with the middle of the cross beam 15.

The side edges of the first-stage sieve 4 and the second-stage sieve 3 are provided with edges 16 extending towards two sides; the edge 16 is fixed with the rubber strip on the limit, and the rubber strip contacts with 1 inner wall of box, prevents that the material from spilling over.

A dust collector 14 is arranged on one side of the box body 1, and the dust collector 14 is provided with three dust collecting openings which are arranged on the side wall of the box body. Three dust suction ports of the dust collector 14 are respectively arranged at the inner sides of the first-stage discharge port 9, the second-stage discharge port 10 and the fine material discharge port 11. A plurality of dust absorption mouths of the dust collector are respectively communicated with the inner sides of the discharge holes, so that the overflow of smoke dust is greatly reduced, and the health of operators is ensured.

The lower end of the transmission rod 5 is slidably sleeved with a sleeve 17, and the lower end of the transmission rod 5 is connected with a damping spring 18. When the transmission rod 5 moves downwards, the gravity of the transmission rod 5 is buffered by the damping spring 18, and the impact on the crank rocker mechanism is prevented.

In the embodiment, a crank-slider mechanism is formed among the transmission rod, the connecting rod, the turntable and the speed reduction motor, and can directly drive one ends of the primary sieve and the secondary sieve to swing up and down and be matched with the vibration damping seat at the other end to realize the vibration screening of the primary sieve and the secondary sieve; this structure has reduced the vibration of box itself greatly, reduces noise at work.

Example two

On the basis of the first embodiment, a vibration damping seat is connected between the lower ends of the first-stage sieve 4 and the second-stage sieve 3 and the box body 1.

As shown in connection with figure 2 of the drawings,

the vibration damping seat comprises a base 21, a connecting seat 23 used for being connected with the vibrating screen plate, and a vibration damping strut 22; the upper end of the vibration reduction supporting rod 22 is hinged with the connecting seat 23 through an upper hinge 24, and the lower end of the vibration reduction supporting rod 22 is hinged with the base 21 through a lower hinge 25; the vibration reduction supporting rod 22 comprises a lower sleeve 22-1, a plunger rod 22-2 and an upper sleeve 22-3 which are coaxially arranged; the close ends of the lower sleeve 22-1 and the upper sleeve 22-3 are open, and the separated ends of the lower sleeve 22-1 and the upper sleeve 22-3 are closed; two ends of the plunger rod 22-2 are respectively inserted into the lower sleeve 22-1 and the upper sleeve 22-3; a main spring 22-5 is sleeved outside the plunger rod 22-2, and two ends of the main spring 22-5 are respectively welded and fixed with the lower sleeve 22-1 and the upper sleeve 22-3; the lower sleeve 22-1 and the upper sleeve 22-3 are internally provided with a lower limiting spring 22-6 and an upper limiting spring 22-4 respectively.

Preferably: the base 21 is an elliptical plate, and the base 21 is provided with a mounting through hole. The mounting through hole of the base 21 is fixedly connected with the step of the box body 1 through a bolt.

Preferably: the upper hinge 24 comprises a pair of ear plates 24-1 fixed on the base 21 and a lower rotating shaft 24-2 welded at the lower end of the lower sleeve 22-1; the two ends of the lower rotating shaft 24-2 are provided with lower bearings 24-3, and the lower bearings 24-3 are arranged on the corresponding lug plates 24-1.

Preferably: the upper end of the upper sleeve 22-3 is provided with a mounting through hole; the lower hinge 25 comprises an upper bearing 25-1 arranged in the mounting through hole of the upper sleeve 22-3, and an upper rotating shaft 25-2 is arranged in the upper bearing 25-1; the connecting seat 23 comprises a pair of symmetrically arranged L-shaped plates, and mounting through holes are formed in the L-shaped plates; the L-shaped plate mounting through holes are fixedly connected with the steps at the lower parts of the first-stage sieve 4 and the second-stage sieve 3 through bolts. The L-shaped plates are also provided with shaft holes, and a pair of L-shaped plates are respectively sleeved at two ends of the upper rotating shaft 25-2 through the shaft holes.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A mine multistage vibration separating screen comprises a box body (1), wherein a first-stage screen (4) and a second-stage screen (3) which are obliquely arranged are arranged in the box body (1), and the first-stage screen (4) and the second-stage screen (3) are arranged up and down; a feed inlet (2) is formed in the upper part of the box body (1), and a high-pressure sprayer (6) is installed on the inner side of the feed inlet (2); the side wall of the box body (1) is provided with a first-stage discharge hole (9) and a second-stage discharge hole (10) which are opposite to the first-stage sieve (4) and the second-stage sieve (3); the bottom of the box body (1) is conical, and a fine material discharge hole (11) is formed in the lowest position of the bottom of the box body (1);

the method is characterized in that:

the higher ends of the first-stage sieve (4) and the second-stage sieve (3) are connected with a transmission rod (5); the transmission rod (5) is vertically arranged, the upper end and the lower end of the transmission rod (5) penetrate through the box body (1), and a linear bearing (7) is arranged between the upper end and the lower end of the transmission rod (5) and the box body (1); a speed reducing motor (12) is installed at the upper end of the box body (1), a rotary table (13) is installed at an output shaft of the speed reducing motor (12), and the rotary table (13) is hinged with the upper end of the transmission rod (5) through a connecting rod (8);

a dust collector (14) is arranged on one side of the box body (1), and the dust collector (14) is provided with three dust collecting ports; three dust suction ports of the dust collector (14) are respectively arranged at the inner sides of the first-stage discharge port (9), the second-stage discharge port (10) and the fine material discharge port (11).

2. The multistage vibratory screening mill for mines of claim 1, wherein: the number of the transmission rods (5) is two, and the upper ends of the transmission rods (5) are fixedly connected through a cross beam (15); the connecting rod (8) is positioned at the center of the two transmission rods (5); one end of the connecting rod (8) is hinged with the rotary table (13), and the other end of the connecting rod (8) is hinged with the middle of the cross beam (15).

3. The multistage vibratory screening mill for mines of claim 1, wherein: the side edges of the first-stage sieve (4) and the second-stage sieve (3) are provided with edges (16) extending towards two sides; and a rubber strip is fixed on the upper edge of the edge (16) and is in contact with the inner wall of the box body (1).

4. The multistage vibratory screening mill for mines of claim 1, wherein: and a vibration damping seat is connected between the lower end of the first-stage sieve (4) and the second-stage sieve (3) and the box body (1).