CN2311311Y

CN2311311Y - Electromagnetic vibrating high-frequency net-shaking screen

Info

Publication number: CN2311311Y
Application number: CN 97249115
Authority: CN
Inventors: 李松奕
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-12-30
Filing date: 1997-12-30
Publication date: 1999-03-24
Anticipated expiration: 2007-12-30

Abstract

The utility model discloses an electromagnetic vibration high-frequency vibration mesh screen, which belongs to a screening machine. A screen box is movably connected with a box type bottom via a support column, a screen is arranged in the screen box, a side plate out of the screen box is provided with an electromagnetic exciter, and the electromagnetic exciter is connected with a cross shaft arranged under the screen via a dowel steel and a driving lever. A vibration arm is arranged on the cross shaft, a rubber cap is arranged on the vibration arm, and the rubber cap is tightly abutted with the screen. The utility model has the advantages of high vibration frequency, good screening effect, simple and convenient installation, little power consumption and long service life, and the screen box can keep silence when the screen is vibrating.

Description

Electromagnetic high frequency vibrating screen

The utility model relates to a kind of electromagnetic high frequency vibrating screen, belongs to sieving machine, is specially adapted to the screening operation of industries such as building materials, cement, pottery, metallurgy.

Present screening machine mostly is the body vibration formula, it is screen cloth fixedly connected and vibration with screen box, because the screen box ginseng is shaken, just need bigger exciting force, under the dither situation, the inertia force of screen box and required exciting force are just bigger, like this, and the service life of reducing whole machinery with regard to causing screen box and other attaching parts to be damaged easily; In addition, the dynamic loading of passing to ground is also bigger, therefore the bearing capacity of ground is had relatively high expectations, and serious meeting causes the vibration of mill construction, so the size of screen(ing) machine and vibration frequency are very limited.

The purpose of this utility model is to overcome the deficiencies in the prior art, and provide a kind of electromagnetic high frequency vibrating screen, it passes through transmission system, directly make the screen cloth vibration, and screen box is motionless or microvibration arranged, and then can adopt the high frequency of 50HZ, and significantly reduced the damage of other parts, prolong the service life of complete machine.

The purpose of this utility model is achieved in that

Screen box flexibly connects by supporting with box style substructure, between screen box one end bottom and box style substructure the angular adjustment bar is installed, and four jiaos of box style substructure are equipped with rubber shock absorber; On the biside plate angle bar is installed in the screen box, screen cloth places on the angle bar, on the screen cloth of angle bar top the rubber press strip is set, and rubber press strip top is provided with swash plate, and it is by being bolted on two sieve box side plates; Screen box is provided with skirtboard around the below, and skirtboard extend in the box style substructure, is fixed with rubber slab at the edge of box style substructure, and the rubber slab bending is close on the skirtboard downwards.Be fixed with electromagnetic exciter on the side plate outside the screen box, it is made up of electromagnet, armature, armature bracket, flat spring and transmission rod, electromagnet and flat spring two ends are fixed on the base, and base and screen box are fixed, and armature is fixed on the armature bracket, armature bracket and flat spring center fixed, its lower end is equipped with briquetting, and hinged with the upper end sphere of transmission rod, is provided with spring between transmission rod upper end and briquetting, the lower end and the activation lever of transmission rod are hinged, and the other end of activation lever is fixedlyed connected with transverse axis; Transverse axis is installed in screen cloth below in the screen box, be set with the twist mode rubber spring on the square axle spindle at its two ends, the twist mode rubber spring is set with the locking tapered sleeve on the outer garden, locking tapered sleeve overcoat is installed watt, it installs shaker arm by on the biside plate that is bolted to screen box on the transverse axis, the shaker arm upper end is equipped with rubber cap, rubber cap tightly holds in the palm screen cloth, and its length equates with screen cloth is wide.

Compared with prior art, advantage of the present utility model is because the screen cloth vibration, screen box is motionless or have only microvibration, has reduced the weight that ginseng is shaken greatly, thereby has also just significantly reduced exciting force, power consumption is little, save the energy, avoided screen box and other parts, prolonged the service life of complete machine owing to vibration damages, load bearing requirements to ground reduces, and economical and convenient is installed.In addition, can improve vibration frequency, can adopt the high frequency of 50HZ, the oscillation intensity of screen cloth is big, can exceed general vibratory sieve more than one times, thereby screen cloth is difficult for plug-hole, the screening efficiency height, and disposal ability is big, especially is suitable for the dried wet sieving of dried fine.Moreover, because screen box is motionless, be easy to sealing, reduced the pollution of dust to environment, noise is little.

The explanation of accompanying drawing drawing:

Fig. 1 is a structural representation of the present utility model:

Fig. 2 is the syndeton schematic diagram of screen cloth of the present utility model and sieve box side plate;

Fig. 3 is a caulking gum board mounting structure schematic diagram of the present utility model;

Fig. 4 is an electromagnetic exciter structural representation of the present utility model;

Fig. 5 is the syndeton schematic diagram of transverse axis of the present utility model and sieve box side plate;

Fig. 6 is an activation lever mounting structure schematic diagram of the present utility model.

Below in conjunction with drawings and Examples in detail the utility model is described in detail: the utility model comprises screen box (2), screen cloth (1), supporting (6), screen box (2) flexibly connects with box style substructure (4) by supporting (6), between screen box (2) one end bottoms and box style substructure (4) angular adjustment bar (8) is installed, four jiaos of box style substructure (4) are equipped with rubber shock absorber (9); Angle bar (14) is installed on the interior biside plate of screen box (2) (11), screen cloth (1) places on the angle bar (14), on the screen cloth (1) of angle bar (14) top rubber press strip (13) is set, rubber press strip (13) top is provided with swash plate (12), and it is fixed on screen box (2) biside plate (11) by bolt (15); Screen box (2) is provided with skirtboard (3) around the below, and skirtboard (3) extend in the box style substructure (4), is fixed with rubber slab (16) at the edge of box style substructure (4), and rubber slab (16) bending is close to downwards on the skirtboard (3).Be fixed with electromagnetic exciter (5) on the side plate (11) outside the screen box (2), it is by electromagnet (20), armature (21), armature bracket (22), flat spring (23) and transmission rod (18) are formed, electromagnet (20) and flat spring (23) two ends are fixed on the base (17), base (17) is fixing with screen box (2), armature (21) is fixed on the armature bracket (22), armature bracket (22) and flat spring (23) center fixed, its lower end is equipped with briquetting (24), and it is hinged with the upper end sphere of transmission rod (18), be provided with spring (19) between transmission rod (18) upper end and briquetting (24), the lower end of transmission rod (18) and activation lever (10) are hinged, and the other end of activation lever (10) is fixedlyed connected with transverse axis (30); Transverse axis (30) is installed in the interior screen cloth of screen box (2) (1) below, be set with twist mode rubber spring (25) on the square axle spindle at its two ends (29), be set with locking tapered sleeve (26) on the outer garden of twist mode rubber spring (25), locking tapered sleeve (26) overcoat be installed watt (27), it is fixed on the biside plate (11) of screen box (2) by bolt (28), transverse axis (30) is gone up shaker arm (31) is installed, shaker arm (31) upper end is equipped with rubber cap (32), rubber cap (32) tightly holds in the palm screen cloth (1), its length and screen cloth (1) wide equating.The quantity of electromagnetic exciter of the present utility model (5) is a plurality of, flat spring (23) is a multi-disc, the quantity that is sleeved on the locking tapered sleeve (26) on the outer garden of twist mode rubber spring (25) is 4, and being sleeved on the outer slips (27) of locking tapered sleeve is taper hole, and its tapering is identical with locking tapered sleeve (26).Shaker arm (31) quantity on the transverse axis (30) is a plurality of, and the length of shaker arm (31) is greater than the length of activation lever (10).

During the utility model work, the vibration of electromagnetic exciter (5) is converted to the twisting vibration of activation lever (10) around the shimmy and transverse axis (30) of transverse axis (30) by transmission rod (18), then realize shimmy around transverse axis (30) of shaker arm (31) and rubber cap (32), by rubber cap (32) exciting screen cloth (1).Because the length of shaker arm (31) is greater than the length of activation lever (10), thereby obtain amplifying can make the vibration of transmission rod (18) be delivered to rubber cap (32) time.Box style substructure (4) had both supported screen box (2), can be used as the sealing receiver bin again, installed rubber shock absorber (9) additional and can directly box style substructure (4) be put on the ground and need not to fix.Adjusting angle adjusting rod (8) can change the required inclination angle of screen box (2).Spring (19) between transmission rod (18) upper end and briquetting (24) can make transmission rod (18) and armature bracket (22) compress and synchronous vibration.Flat spring (23) and twist mode rubber spring (25) are flexible member, and the natural frequency of vibration of the vibrational system of forming with mass of vibration is near excited frequency, work thereby the main vibrating system of exciting screen cloth (1) is under the resonance state.

Claims

1, a kind of electromagnetic high frequency vibrating screen comprises screen box, screen cloth, supporting, transmission system, it is characterized in that:

A, screen box flexibly connect by supporting with box style substructure, between screen box one end bottom and box style substructure the angular adjustment bar are installed, and four jiaos of box style substructure are equipped with rubber shock absorber;

On the biside plate angle bar is installed in b, the screen box, screen cloth places on the angle bar, on the screen cloth of angle bar top the rubber press strip is set, and rubber press strip top is provided with swash plate, and it is by being bolted on two sieve box side plates;

C, screen box are provided with skirtboard around the below, and skirtboard extend in the box style substructure, is fixed with rubber slab at the edge of box style substructure, and the rubber slab bending is close on the skirtboard downwards;

Be fixed with electromagnetic exciter on the side plate outside d, the screen box, it is made up of electromagnet, armature, armature bracket, flat spring and transmission rod, electromagnet and flat spring two ends are fixed on the base, and base and screen box are fixed, and armature is fixed on the armature bracket, armature bracket and flat spring center fixed, its lower end is equipped with briquetting, and hinged with the upper end sphere of transmission rod, is provided with spring between transmission rod upper end and briquetting, the lower end and the activation lever of transmission rod are hinged, and the other end of activation lever is fixedlyed connected with transverse axis;

E, transverse axis are installed in screen cloth below in the screen box, be set with the twist mode rubber spring on the square axle spindle at its two ends, the twist mode rubber spring is set with the locking tapered sleeve on the outer garden, locking tapered sleeve overcoat is installed watt, it is by on the biside plate that is bolted to screen box, shaker arm is installed on the transverse axis, and the shaker arm upper end is equipped with rubber cap, and rubber cap tightly holds in the palm screen cloth; Its length equates with screen cloth is wide.

2, electromagnetic high frequency vibrating screen according to claim 1, the quantity that it is characterized in that electromagnetic exciter is a plurality of;

3, electromagnetic high frequency vibrating screen according to claim 1 is characterized in that flat spring is a multi-disc.

4, electromagnetic high frequency vibrating screen according to claim 1, the quantity that it is characterized in that being sleeved on the locking tapered sleeve on the outer garden of twist mode rubber spring is 4.

5, electromagnetic high frequency vibrating screen according to claim 1, to it is characterized in that being sleeved on the outer slips of locking tapered sleeve be taper hole, its tapering is with to lock tapered sleeve identical.

6, electromagnetic high frequency vibrating screen according to claim 1 is characterized in that the shaker arm quantity on the transverse axis is a plurality of.

7, electromagnetic high frequency vibrating screen according to claim 1 is characterized in that shaking the length of the length of arm greater than activation lever.