CN2296242Y

CN2296242Y - Vibrative prickly sieve

Info

Publication number: CN2296242Y
Application number: CN 96217440
Authority: CN
Inventors: 邓汉波
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-07-10
Filing date: 1996-07-10
Publication date: 1998-11-04
Anticipated expiration: 2006-07-10

Abstract

The utility model provides a mechanical vibration screen, which is characterized in that a thorn-shaped screen obliquely arranged on a discharge port of a vibration machine is composed of an oblique lattice bar, a fixed lattice bar, a support post and a cross beam. On the direction perpendicular to the flowing direction of the material, the oblique lattice bar, and the fixed lattice bar are uniformly arranged according to definite distance at intervals. The lower end of the oblique lattice bar is arranged near the feed inlet and is fixed on the cross beam; the higher end is arranged near the discharge hole; the end part is hung and is higher than the fixed lattice bar by a definite distance; along the material flowing direction, a plurality of oblique lattice bars are connected and arranged end to end. The mechanical vibration screen has the advantages that the hole can not be blocked, the screening speed is high, the precision is high, and the material with larger grained difference can be screened.

Description

Vibration thorn shape sieve

The utility model belongs to a kind of moto-vibro screen.

Existing mechanical vibratory sieve, its screen cloth generally all are fixed grating bar screen clothes, and when the granularity that is sized material differed big, the amplitude of bulk materials was very little, can't be pulled out away from the screen cloth face, and under the obstruction of horizontal glazing bar, its translational speed is very slow; Especially some grow the material of tapers, and in the time of can not seeing through sieve aperture in case drop into sieve aperture, the sieve aperture that just can't be shaken causes the plug-hole phenomenon.Screening speed and precision have significantly been reduced.Though the hold-down bars bar grizzl(e)y does not have the plug-hole phenomenon, because its unfixed end rigidity is little, under the gravity effect of material, can produce bigger distortion, make the variable in distance between rod very big, also be that screen size alters a great deal, reduced screening precision significantly.In addition, the hold-down bars bar grizzl(e)y also can't sieve out tiny material, only is applicable to scalping.

The purpose of this utility model provides a kind of weak point that can overcome above-mentioned screening machine existence, can quicker screen size differ bigger material and quick a kind of moto-vibro screen of changing screen cloth again.

The technical scheme that the utility model is dealt with problems is: to discharging opening inclination certain angle thorn shape screen cloth is installed on bobbing machine.Thorn shape screen cloth is by the inclination glazing bar, fixedly glazing bar, pillar and crossbeam are formed.On perpendicular to the Flow of Goods and Materials direction, some inclination glazing bars, fixedly glazing bar is pressed certain distance alternately equably.On the in-plane that constitutes perpendicular to crossbeam bottom, the nearly charging aperture of an end that the inclination glazing bar is low also is fixed on the crossbeam, and remainder is unsettled, and the high nearly discharging opening of an end also exceeds certain distance than fixing glazing bar; Along the Flow of Goods and Materials direction, several the end to end arrangements of inclination glazing bar.The inclination glazing bar is formed by at one end crooked about 90 degree of a strip metal rod, is bent part and is fixed on the crossbeam by pillar (9) as a low end; On the in-plane that constitutes perpendicular to crossbeam bottom, knee and fixedly glazing bar is contour or exceed certain distance.Fixedly glazing bar is fixed on the crossbeam by pillar (9), and its axis is consistent with the Flow of Goods and Materials direction, and exceeds certain distance than crossbeam top.Which floor thorn shape screen cloth can install on bobbing machine, under the thorn shape screen cloth which floor fixing thin glazing bar screen cloth can be installed.From top to bottom, sieve aperture reduces gradually, and the screen cloth angle of inclination increases gradually.Each layer screen cloth is fixed on the bobbing machine with clamping screen cloth mechanism fast.Clamp screen cloth mechanism fast by fixedly skewback, movable skewback, parallels and hold-down bolt and screen cloth backbar are formed.Fixedly skewback and screen cloth backbar are fixed on the side plate of bobbing machine, and fishbolt is pressed on movable skewback, parallels and screen cloth fixedly between the skewback and screen cloth backbar.Leave plurality of holes on the bobbing machine side plate with the convenient screen cloth of installing.If material is in eminence, in the time of carrying out scalping, thorn shape screen cloth can big inclination angle be installed in and carries out material screening on the hold-down support and need not be contained on the bobbing machine.

Describe two kinds of the present utility model below in conjunction with accompanying drawing and implement structure.

Fig. 1 is first kind of the present utility model and implements structure chart.

Fig. 2 is the plane of thorn shape screen cloth.

Fig. 3 for the A on the thorn shape screen plane figure to view.

Fig. 4 is the N-N cutaway view on the thorn shape screen plane figure.

Fig. 5 is the partial lateral cutaway view of fixed grating bar screen cloth.

Fig. 6 is the structure chart that clamps screen cloth mechanism fast.

Fig. 7 is second kind of the present utility model and implements structure chart.

Describe first kind of the present utility model below in conjunction with accompanying drawing 1, accompanying drawing 2, accompanying drawing 3 and accompanying drawing 6 and implement structure.

In accompanying drawing 1, thorn shape screen cloth (4) and fixing thin glazing bar net (5) tilt to be installed on the bobbing machine (2) to discharging opening at a certain angle.Upper two layers is thorn shape screen cloth (4), and lower two layers is fixing thin glazing bar screen cloth (5), and from top to bottom, the sieve aperture of each layer screen cloth reduces gradually, and the angle of inclination increases gradually.Feed well (1) places the top of charging aperture.Have the hole (3) that several installation screen clothes are used on the side plate of bobbing machine (13).In accompanying drawing 2, the direction of arrow is the Flow of Goods and Materials direction.On perpendicular to the Flow of Goods and Materials direction, inclination glazing bar (6) and fixedly glazing bar (7) press certain distance equably alternately.In accompanying drawing 3, inclination glazing bar (6) is formed by at one end crooked about 90 degree of a strip metal rod, is bent part and is fixed on the crossbeam (8) by pillar (9) as a low end, nearly charging aperture; On the in-plane that constitutes perpendicular to crossbeam (8) bottom, knee and fixedly glazing bar (7) is contour; The remainder of inclination glazing bar (6) is unsettled, and the high nearly discharging opening of an end also exceeds certain distance than fixing glazing bar (7); Along the Flow of Goods and Materials direction, the end to end arrangement of several inclination glazing bars (6).Fixedly glazing bar (7) is fixed on the crossbeam (8) by pillar (9), and its axis is consistent with the Flow of Goods and Materials direction, and exceeds certain distance than the top of crossbeam (8).Thorn shape screen cloth (4) and fixing thin glazing bar screen cloth (5) all are clamped on the bobbing machine (2) with clamping screen cloth mechanism fast.Shown in accompanying drawing (6), clamp screen cloth mechanism fast by fixedly skewback (14), movable skewback (15), parallels (12), fishbolt (16) and screen cloth backbar (18) are formed.Fixedly skewback (14) and screen cloth backbar (18) are fixed on the side plate (13) of bobbing machine (2), and fishbolt (16) is pressed on the crossbeam (8) of movable skewback (15), parallels (17) and fixing thin glazing bar screen cloth (5) or thorn shape screen cloth (4) fixedly between the skewback (14) and screen cloth backbar (18).

The utlity model has following advantage:

1, not plug-hole, screening speed and precision height.

Because the inclination glazing bar (6) on the thorn shape screen cloth (4) has only a low end to be fixed on the crossbeam (8) by pillar (9), and with fixedly glazing bar (7) is contour, all the other are unsettled.A high end exceeds certain distance than fixing glazing bar (7).So inclination glazing bar (6) and fixedly the distance between the glazing bar (7) increase gradually along the flow direction of material.In addition, under the vibration effect of bobbing machine (2) and material, inclination glazing bar (6) can produce with respect to the fixedly vibration of glazing bar (7).This just makes that the material of the sieve aperture that falls into thorn shape screen cloth (4) can be along inclination glazing bar (6) and the fixing past quickly current downflow of glazing bar (7) and can not pressed from both sides and extremely cause plug-hole when failing to see through sieve aperture.Even material (10) for some bigger long tapers, as shown in Figure 4, when it flows to that the high end of inclination glazing bar (6) still can not see through sieve aperture and be blocked by the low end of next bar inclination lattice (6) time, because material (10) is more much lower than the center of gravity of material (10) by the stopper position, under the vibration effect, it is easy to overcome and stops and rolls downward.So can not cause the plug-hole phenomenon.If common fixed grating bar screen cloth then can plug-hole.As shown in Figure 5, when bigger long taper material (10) is dropped into the sieve aperture of common fixed grating bar screen cloth and can not see through sieve aperture the time, because the amplitude of material (10) is very little, very near even be higher than the center of gravity of material (10) by the stopper position from the center of gravity of material (10), material (10) just can't be at vertical glazing bar (11) of ordinary fixed glazing bar screen cloth and the sieve aperture that laterally shakes under the vibration effect of glazing bar (12), causes the plug-hole phenomenon.On the Flow of Goods and Materials direction, the end to end arrangement of several inclination glazing bars (6), this makes some can see through sieve aperture, but when the influence of or vibration fast because of flow velocity can not see through in article one tilts the corresponding sieve aperture of glazing bar (6), can also in the corresponding sieve aperture of second or the 3rd, the 4th inclination glazing bar (6), see through.In addition, have only inclination glazing bar (6) can produce with respect to the fixedly vibration and the distortion of glazing bar (7), again because the vibration effect of bobbing machine (2), inclination glazing bar (6) can be done shortlyer, so its screen size variation little more than the hold-down bars bar grizzl(e)y.So screening precision is than the height of hold-down bars bar grizzl(e)y.

When 2, the granularity of material differs big, also can sieve the thickness material out respectively.Though thorn shape screen cloth (4) can not sieve tiny material come out separately, but thorn shape screen cloth (4) is contained on the bobbing machine (2), because the vibration effect is arranged, the angle of inclination and the length of thorn shape screen cloth (4) can be done lessly, can install one easily in its lower section to two-layer fixing thin glazing bar screen cloth, tiny material is further sieved, tiny material is sieved out respectively.As sandstone for building, the utility model just can sieve big small stone and tiny sand come out respectively in a screening process.

3, screen cloth is installed and is changed convenient and reliable.

Shown in figure (6), after fishbolt (16) is unclamped, just can very fast movable skewback (15) be thrown off, take out screen cloth (5).After new screen cloth (5) places screen cloth backbar (18) top, cover parallels (17), with fishbolt (16) movable skewback (15) is pressed into fixedly between the skewback (18) and parallels (17), tightening fishbolt (16) can be securely fixed in screen cloth (5) on the bobbing machine (2).

Fig. 7 is that second kind of the new shape of this practicality implemented structure.Two kinds of different thorn shape screen clothes (4) of sieve aperture are connected as a single entity with pillar (19), are installed on the hold-down support (20) with bigger angle of inclination.The sieve aperture of upper strata thorn shape screen cloth (4) is bigger than lower floor.Material enters on the thorn shape screen cloth (4) through feed well (1).Material can sieved out three kinds of varigrained materials respectively by thorn shape screen cloth (4) in the process of flowing from top to bottom.Thorn shape screen cloth (4) needn't be contained on the bobbing machine.This structure is applicable to the occasion when material will carry out scalping in higher place.

Claims

1, a kind of vibration thorn shape sieve, by bobbing machine, thorn shape screen cloth, fixing thin glazing bar screen cloth, clamp screen cloth mechanism fast and form, it is characterized in that being installed in thorn shape screen cloth (4) on the bobbing machine by inclination glazing bar (6), fixedly glazing bar (7) and crossbeam (8) etc. are formed to the discharging opening inclination; On direction perpendicular to Flow of Goods and Materials, some inclination glazing bars (6) and fixedly glazing bar (7) press certain distance equably alternately; On the in-plane that constitutes perpendicular to crossbeam (8) bottom, the nearly discharging opening of an end that inclination glazing bar (6) is low also is fixed on the crossbeam (8), and remainder is unsettled, and the high nearly discharging opening of an end also exceeds certain distance than fixing glazing bar (7); Along the Flow of Goods and Materials direction, the end to end arrangement of several inclination glazing bars (6); Fixedly glazing bar (7) is fixed on the crossbeam (8), and its axis is consistent with the Flow of Goods and Materials direction, and exceeds certain distance than the top of crossbeam (8).

2, vibration thorn shape sieve according to claim 1 is characterized in that the inclination glazing bar (6) that stings shape screen cloth (4) is formed by at one end crooked about 90 degree of a strip metal rod, is bent part and is fixed on the crossbeam (8) by pillar (9) as a low end; On the in-plane that constitutes perpendicular to crossbeam (8) bottom, knee and fixedly glazing bar (7) is contour or exceed certain distance; Fixedly glazing bar is fixed on the crossbeam (8) by pillar (9).

3, vibration thorn shape sieve according to claim 1, it is characterized in that stinging the available quick clamping screen cloth of shape screen cloth (4), fixing thin glazing bar screen cloth (5) mechanism multilayer is installed on the bobbing machine (2), be thorn shape screen cloth (4) above, be fixing thin glazing bar screen cloth (5) below, from top to bottom, sieve aperture reduces gradually, and the screen cloth angle of inclination increases gradually.

4, vibration according to claim 1 thorn shape sieve, the quick clamping screen cloth mechanism that it is characterized in that it is by fixedly skewback (14), movable skewback (16), parallels (17), fishbolt (16) and screen cloth backbar (18) are formed; Fixedly skewback (14) and screen cloth backbar (18) are fixed on the side plate of bobbing machine (2), and fishbolt (16) is pressed on the crossbeam (8) of movable skewback (15), parallels (17) and fixing thin glazing bar screen cloth (5) or thorn shape screen cloth fixedly between the skewback (14) and screen cloth backbar (18).

5, vibration according to claim 1 thorn shape sieve is characterized in that stinging shape screen cloth (4) and can big inclination angle be installed in and carry out material screening on the hold-down support, need not be contained on the bobbing machine.