CN201020444Y - Plane round vibrating screen - Google Patents

Abstract

The utility model discloses a plane circular vibrating screen of a practical screening device applicable for screening various flake and particle materials and more particularly used for screening light non-metal materials. The vibrating screen comprises two cross beams (2) connected at the upper part of the support (1), four steel wire suspension mechanisms (3) arranged at four corners of two cross beams (2) and a hanged screen box (20) positioned at the lower side, and the vibrating mechanism is arranged at the center of the screen box (20). Because the utility model adopts the circular plane movement principle with the core of the central vertical shaft and the eccentric block, a tilt angel is formed between the design screen plate and the central shaft, so that the materials make jumping motion and produce various planar exciting forces. Moreover, the utility model adopts a special grease lubrication system to keep the good lubricating state. Four corners of the planar circular vibrating screen are hung with four steel wires, no damping device is required and the working process is purely flexible circular motion. The screen does not collide with other workpieces so that no stress deformation and fatigue loading may be produced, and has the advantages of long service life, low failure rate, convenient operation and maintenance, great productivity, high screening efficiency and so on while compared with similar vibrating screen.

Description

A kind of flat circle vibratory sieve

Technical field: the utility model relates to a kind of screening that is fit to multiple sheet, powder and granule shape material, a kind of flat circle vibratory sieve of screening plant of the new structure that uses when screening in particular for the lightweight non-metallic material.

Background technology: all kinds of vibrosieve equipment of applying at present, its vibration mode, generally be divided into three kinds of forms of motion such as straight-line oscillation, circular vibration, elliptical vibration, the screening plant of above-mentioned three kinds of vibration modes is used for the heavier material screenings of industry proportion such as metallurgy, mine, coal, building materials more.But be difficult to be applicable to the screening of lightweight non-metallic material.

Summary of the invention: the purpose of this utility model is to design a kind of new structure; Be fit to a kind of flat circle vibratory sieve of lightweight non-metallic material screening plant.The technical solution of the utility model is finished as follows: it comprises that support 1 top connects two crossbeams 2, and in four wire rope hanging mechanisms 3 of two crossbeams, 2 four angle apparatus, its downside is hung screen box 20, and the vibrating mechanism device is at screen box 20 middle parts.Because the utility model has utilized with central vertical shaft and added the disk motion principle that eccentric block is a core, design sieve plate and central shaft have an inclination angle, make material produce jumping, produce the exciting force on a plurality of planes; And adopt special grease lubricating system, make it be in good lubricating status.Four jiaos in the flat circle vibratory sieve of this kind form is with four wire rope hangings, no vibration absorber, sheerly flexible in the course of the work circular motion.Other parts of getting along well collide, so it does not produce stress deformation and fatigue load, have longer than the similar vibratory sieve life-span, fault rate is low, use, easy to maintenance, production capacity big, the screening efficiency advantages of higher.

Description of drawings: Fig. 1 is an overall structure schematic diagram of the present utility model

Fig. 2 is the left view of Fig. 1

Fig. 3 is the vertical view of Fig. 1

Fig. 4 is that the A portion parts of Fig. 1 amplify drive connection figure

Fig. 5 is that the B portion parts of Fig. 4 amplify drive connection figure

The specific embodiment: shown in Figure 3 as Fig. 1 Fig. 2, support 1 is steel frame construction, be " H " type portal frame of the whole screen box of supporting, top connects two crossbeams 2, in four wire rope hanging mechanisms 3 of two crossbeams, 2 four angle apparatus, its downside is hung screen box 19, and the vibrating mechanism device is at screen box 19 middle parts.These four steel wire ropes, the weight of both having born whole screen box plays the whole screen box of damping again and aloft rotates.Therefore it forces screen box together with sieve plate, does the flat circle motion within the specific limits, finishes screening operation.

Shown in Figure 4 as Fig. 1 Fig. 2, screen box 20 has a 9-12 inclination angle by three layers of sieve plate 21 and central shaft, discharge Hatch Opening 4 is connected lower end, ground floor sieve plate 21 inclination angle, screen box 20 left side, and charging aperture 22 devices are at screen box 20 upper right sides, and discharging opening 19 is connected screen box 20 lower-left sides.Ground floor (upper strata) discharge Hatch Opening 4 without dropping, by plane discharge Hatch Opening 4 on the sieve plate 21, enters feed bin through the ground floor sieve, pulverizes again.Sieve plate of this mechanism and central shaft have an inclination angle, the screening material is made multi-level flat circle along sieve plate and is moved, material is after finishing first flat circle motion, when entering second plane, actual is a kind of jump form, is that material is done jumping along the sieve plate inclined plane from naked eyes effect directly perceived, produce the exciting force on a plurality of planes, finish conveying, the graded operation of material.Material on the multilayer sieve plate is granular size no matter, but movement locus is identical.The outstanding advantage of the circular shale shaker of this kind form is: four jiaos with four wire rope hangings, no vibration absorber, the sheerly flexible circular motion of screen box in the course of the work.Other parts of getting along well collide, so it does not produce stress deformation.Although long-term work, sieve nest do not produce fatigue load, removing sieve plate has friction effect with the screening thing, and causes outside the sieve plate wearing and tearing, harmless to other movement parts.Therefore its life-span is more much longer than same vibratory sieve.Remove metal (upper and need often to refuel maintenance, it is extremely low to produce fault rate.It is all comparatively convenient to use, safeguard.

Shown in Figure 4 as Fig. 1 Fig. 2, on the vibrating mechanism motor 7 fixedly connected holders, connect big belt pulley 5 by V-belt 12, and link together with central shaft 13; Central shaft 13, vertical means respectively is equipped with 1 sphere radial bearing 17 up and down up and down; Bearing (ball) cover 18 has maze trough and bowl-type rubber seal, and about in the of 13 two ends at central shaft for device; Last cover 11 fixtures are in the vibrating mechanism upper end, and following pulley cover 17 fixtures are in the vibrating mechanism lower end.The motor small pulley (driving wheel) of this mechanism is passed to big belt wheel (follower), does suitable retarded motion.By the small belt pulley of motor, pass to big belt pulley by six roots of sensation combined triangular band, connect vertical central shaft by key, eccentric block rotates about driving, and produces centrifugal exciting force, makes whole screen box do the flat circle motion.Both bear radial load at the volley, and can prevent the play up and down of axle again.

Shown in Figure 5 as Fig. 1 Fig. 2 Fig. 4, central shaft 13 respectively is equipped with one group of eccentric block 14 up and down.Two groups of six roots of sensation triangle rubber strips are passed to vertical center axis lower end belt pulley with power through motor, drive the central shaft rotation, and two eccentric blocks produce centrifugal exciting force about making, and force whole screen box to do the flat circle motion.Eccentric block is the exciting source that produces this device up and down, and two same phase angles of eccentric block produce two vector additions, for whole screen box, is a vector and (total exciting force).Itself is heavier for eccentric block, and kilogram surplus in the of single 200 is made a very big centrifugal force, must be firm reliable so install, and except that adopting key connects, also be provided with a taper ringfeder, and have six screws to tighten up, guarantee eccentric block and central shaft firm and reliable connection.Two eccentric blocks also attaching have two blocks of fan-shaped counterweight steel plates, are used to adjust the exciting force size.

Shown in Figure 5 as Fig. 2 Fig. 4, last oil filler 8 and following oil filler 9 and oil-out 10 devices upper and lower sides outside the bearing chamber of central shaft 13.The metal (upper grease lubricating system of this mechanism, it is one of special construction of this device, its advantage is that an oil filler is arranged at top, lubricating grease adds upper bearing (metal), after date in the time of one section, grease is thinning to flow into lower bearing room by oil pipe, and same lower bearing room also is provided with an oil filler, and two bearings chamber thin oil flows out by oil-out.Make lubricating system form a unimpeded system of turnover.

Claims (4)

1. flat circle vibratory sieve, it comprises that support (1) top connects two crossbeams (2), it is characterized in that in two crossbeams, four wire rope hanging mechanisms of (2) four angle apparatus (3), its downside is hung screen box (20), the vibrating mechanism device is at screen box (20) middle part.

2. a kind of flat circle vibratory sieve according to claim 1, it is characterized in that screen box (20) has a 9-12 ° of inclination angle by three layers of sieve plate (21) and central shaft, discharge Hatch Opening (4) is connected ground floor sieve plate (21) lower end, inclination angle, screen box (20) left side, charging aperture (22) device is at screen box (20) upper right side, and discharging opening (19) installs at screen box (20) lower-left end.

3. a kind of flat circle vibratory sieve according to claim 1, it is characterized in that vibrating mechanism is by on the fixedly connected holder of motor (7), connect big belt pulley (5) by V-belt (12), and and central shaft (13) links together, central shaft (13) respectively is equipped with one group of eccentric block (14) up and down, last oil filler (8) and following oil filler (9) and oil-out (10) device upper and lower sides outside the bearing chamber of central shaft (13); Central shaft (13) is equipped with 1 sphere radial bearing (17) up and down, and bearing (ball) cover (18) device is at central shaft (13) two ends up and down.

4. a kind of flat circle vibratory sieve according to claim 3 is characterized in that cover (11) fixture in the vibrating mechanism upper end, and following pulley cover (17) fixture is in the vibrating mechanism lower end.

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