CN2553905Y

CN2553905Y - Electromagnetic complex frequency net-shaking screen

Info

Publication number: CN2553905Y
Application number: CN 01266936
Authority: CN
Inventors: 马美英; 邸刚; 王子文; 朱满平
Original assignee: 朱满平
Priority date: 2001-09-16
Filing date: 2001-09-16
Publication date: 2003-06-04
Anticipated expiration: 2011-09-16

Abstract

The utility model discloses an electromagnetic complex frequency vibration sieve, belonging to sieving machine. A side plate out of a sieve box is provided with a high frequency electromagnetic vibration exciter which is tightly supported with the sieve in the sieve body through a transmission bolt, a drive vibration rod, a transverse shaft, a high frequency vibration arm, and a rubber cap; meanwhile, the side plate out of the sieve box is provided with a low frequency electromagnetic vibration exciter which directly excites a sieve hook plate at the material inlet end and the material outlet end through a transmission bolt, a drive vibration rod, a transverse shaft and a low frequency vibration arm. The utility model has the advantages of not moving the sieve box but moving the sieve, being not easy to block the sieve holes, large disposal capability, high leaking screen and screening ratio, no material accumulation at the material outlet end, long service life, small power consumption, and simple and convenient installation.

Description

Complex-frequency vibrating screen

This is suitable for novel a kind of complex-frequency vibrating screen that relates to, and belongs to a kind of thin material screening machinery of industries such as being specially adapted to coal, building materials, cement, pottery, metallurgy.

Present electromagnetic high-frequency vibration sieve has very strong classifying capability, but when screen(ing) machine had very small inclination, conveying capacity was poor, influenced disposal ability, during than high inclination-angle, shared factory building height is too big.Flat spring and power transmission bolt are easily broken simultaneously, and discharge end is screen cloth vibration dead point, and material easily is piled up in discharge end.

The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of complex-frequency vibrating screen is provided, and it is by the low frequency electromagnetic vibrator, and directly the screen cloth hook plate of exciting screen cloth feeding end, discharge end vibrates whole generation of screen cloth; The high-frequency electromagnetic vibrator is by the rubber cap exciting screen cloth of screen cloth below simultaneously.Compass screen surface has just produced complex vibration like this, helps the conveying and the classification of material, and discharge end not have bank long-pending.

The purpose of this utility model is achieved in that

Screen box flexibly connects by supporting with frame, screen box feeding end bottom and frame are equipped with the angular adjustment bar, frame is provided with the rubber damping spring for four jiaos, in the screen box biside plate angle steel is installed, and screen cloth places on low-frequency vibration arm, angle steel, the rubber cap by vertical tensioning.The high and low frequency electromagnetic exciter is installed on the screen box outer panel, they all are made up of electromagnet, armature, rubber spring, power transmission bolt, electromagnet is installed in electromagnetic exciter and puts outward, the electromagnetic exciter overcoat is fixed on the screen box, armature is fixed on the power transmission bolt, rubber spring is fixed on the power transmission bolt by upper and lower pressing plate, round nut, and the lower end of power transmission bolt is connected with driving vibrating arm elasticity, and the other end that drives vibrating arm 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 diameter of axle at its two ends, be set with tightening watt cover on the twist mode rubber spring cylindrical, tightening watt cover is set with spring tightening seat outward, it is bolted on the sieve box side plate, on the transverse axis of high-frequency electromagnetic vibrator below shaker arm is installed, the shaker arm upper end is equipped with rubber cap, rubber cap tightly holds in the palm screen cloth, on the transverse axis of low frequency electromagnetic vibrator below shaker arm is installed, shaker arm tightly holds in the palm the screen cloth hook plate of screen cloth pan feeding, discharge end.Such one be the high-frequency electromagnetic vibrator of 50Hz by the direct exciting screen cloth of elastic system, strengthen the oscillation intensity of compass screen surface, strengthen the self-cleaning ability of compass screen surface, prevent sieve pore blockade, be beneficial to classification, dehydration, desliming, the de-mediated of fine; Another pan feeding, discharge end are the screen cloth hook plate at the direct exciting screen cloth of the low frequency electromagnetic vibrator two ends of 25Hz, to strengthen the transporting velocity of material, overcome the essential transporting velocity that strengthens the screen box inclination angle with the raising material of simple vibration sieve, thereby avoid the bigger shortcoming of screen(ing) machine setting angle.Therefore, screen cloth is subjected to the exciting perpendicular to the 50Hz of compass screen surface on the one hand, compass screen surface is subjected to the low frequency exciting of 25Hz again on the other hand, thereby realizes the complex vibration of compass screen surface, reaches and not only improves the saturating sieve ability of compass screen surface but also improve two purposes of the transporting velocity of material on compass screen surface.Also solved simultaneously the technical barrier that electromagnetic high-frequency vibration sieve discharge end material is easily piled up.

This is suitable for the novel following advantage that compared with prior art has:

1, utilizes electric cabinet can regulate amplitude arbitrarily, thereby can regulate feeding coal according to material properties and technological requirement;

2, two exciting force excitings are convenient to stock grading, dehydration, desliming, de-mediated and conveying, and it is long-pending that the while discharge end does not have bank;

3, screen cloth lower floor is the holder net of crin macropore, the composite web of upper strata for bonding together by two-layer stainless steel wire mesh grid, and composite web has very high percent opening, has certain rigidity, is convenient to tensioning, smooth, and improves screen cloth service life;

4, screen box is motionless, only moving screen cloth, and power consumption is little;

5, sieve aperture is difficult for stopping up, and difficulty is sieved saturating screen capacity height, disposal ability is big;

6, the screen box angular adjustment is convenient, simple installation, long service life.

Description of drawings:

Fig. 1 is this suitable new structure schematic diagram.

Fig. 2 is that this is suitable for novel high and low frequency electromagnetic exciter structural representation.

Fig. 3 is that this is suitable for novel power transmission bolt and drives vibrating arm syndeton schematic diagram.

Fig. 4 is this syndeton schematic diagram that is suitable for novel transverse axis and sieve box side plate.

Fig. 5 is that this is suitable for novel high and low frequency shaker arm mounting structure schematic diagram.

Fig. 6 is that this is suitable for novel screen cloth lateral cross section structural representation.

Among the figure: electric cabinet 1, angular adjustment bar 2, low frequency electromagnetic vibrator 3, screen box 4, screen cloth 5, high-frequency electromagnetic vibrator 6, support 7, frame 8, rubber damping spring 9, base 10, electromagnetic exciter overcoat 11, hexagon socket head cap screw 12, electromagnet 13, armature 14, hexagon socket head cap screw 15, power transmission bolt 16, rubber spring 17, pressing plate 18, round nut 19, round nut 20, pressing plate 21, rubber spring 22, drive vibrating arm 23, transverse axis 24, twist mode rubber spring 25, tightening watt cover 26, spring tightening seat 27, bolt 28, low-frequency vibration arm 29, screen cloth hook plate 30, dither arm 31, rubber cap 32, angle steel 33

Below in conjunction with drawings and Examples in detail the utility model is described in detail:

The utility model comprises compositions such as electric cabinet 1, angular adjustment bar 2, low frequency electromagnetic vibrator 3, screen box 4, screen cloth 5, high-frequency electromagnetic vibrator 6, support 7, frame 8, rubber damping spring 9, base 10.Screen box 4 is connected with base 10 elasticity by angular adjustment bar 2, support 7, frame 8, rubber damping spring 9, and low frequency electromagnetic vibrator 3, high-frequency electromagnetic vibrator 6 (as Fig. 1) are installed on screen box 4 side plates.As shown in Figure 2, the high and low frequency electromagnetic exciter all is made up of electromagnet 13, armature 14, power transmission bolt 16, rubber spring 17, electromagnetic exciter overcoat 11 etc., electromagnet 13 is fixing with electromagnetic exciter overcoat 11 by hexagon socket head cap screw 12, armature 14 is fixed on the power transmission bolt 16 by hexagon socket head cap screw 15, and rubber spring 17 is fixed on the power transmission bolt 16 by upper and lower pressing plate 18, round nut 19.As Fig. 2, shown in Figure 3, power transmission bolt 16 lower ends are connected by round nut 20, pressing plate 21, rubber spring 22 and driving vibrating arm 23 elasticity, and the other end that drives vibrating arm 23 is fixedlyed connected with transverse axis 24.As shown in Figure 4, be set with twist mode rubber spring 25 on the square diameter of axle at transverse axis 24 two ends, be set with tightening watt cover 26 on twist mode rubber spring 25 cylindricals, be set with spring tightening seat 27 outside the tightening watt cover 26, spring tightening seat 27 is fixed on the sieve box side plate by bolt 28.As shown in Figure 5, on the transverse axis 24 of low frequency electromagnetic vibrator 3 belows low-frequency vibration arm 29 is installed, the screen cloth hook plate 30 at low-frequency vibration arm 29 tight holder screen clothes 5 two ends, on the transverse axis 24 of high-frequency electromagnetic vibrator 6 belows dither arm 31 is installed, dither arm 31 upper ends are equipped with rubber cap 32, rubber cap 32 tight holder screen clothes 5.By Fig. 5, Fig. 6 as can be known, screen cloth 5 places on the angle steel 33 by the 30 vertical tensionings of screen cloth hook plate, and screen cloth 5 is made up of the composite web that the holder net and the two-layer stainless steel mesh grid of crin macropore bonds together.

In the utility model when work,, the vibration of high-frequency electromagnetic vibrator 6 is converted to by power transmission bolt 16 and drives the twisting vibration of vibrating arm 23 around transverse axis 24, realizes that then dither arm 31, rubber cap 32 are shimmy around transverse axis 24, by rubber cap 32 exciting screen clothes 5.Simultaneously, the vibration of low frequency electromagnetic vibrator 3 is converted to by power transmission bolt 16 and drives the twisting vibration of vibrating arm 23 around transverse axis 24, and the face that continues is realized the shimmy of low-frequency vibration arm 29, by the screen cloth hook plate 30 at low-frequency vibration arm 29, exciting screen cloth 5 two ends.Simultaneously since the length of dither arm 31, low-frequency vibration arm 29 all greater than the length that drives vibrating arm 23, thereby obtain amplifying can make the vibration of power transmission spiral shell inspection 16 be delivered to screen cloth 5 time.

Claims

1, a kind of complex-frequency vibrating screen, it comprises electric cabinet, screen box, screen cloth, support, high-frequency electromagnetic vibrator, low frequency electromagnetic vibrator, it is characterized in that:

Be fixed with the high and low frequency electromagnetic exciter on a, the screen box outer panel, they all are made up of electromagnet, armature, rubber spring and power transmission bolt, electromagnet is fixed on the outer electromagnetic exciter overcoat of screen box, armature is fixed on the power transmission bolt, the lower end of power transmission bolt and driving vibrating arm resilient connection, the other end that drives vibrating arm is fixedlyed connected with transverse axis;

B, transverse axis are installed in screen cloth below in the screen box, be set with the twist mode rubber spring on the square diameter of axle at its two ends, be set with tightening watt cover on the twist mode rubber spring cylindrical, the outer pocketed springs tightening seat of tightening watt cover, it installs shaker arm by being bolted on the sieve box side plate on the transverse axis;

C, high-frequency electromagnetic vibrator are by the dither arm on the transverse axis, the direct exciting screen cloth of rubber cap, and the low frequency electromagnetic vibrator is by the direct exciting screen cloth of the low-frequency vibration arm pan feeding on the transverse axis, the screen cloth hook plate of discharge end;

D, screen cloth lower floor are the holder net of crin macropore, and the upper strata is to be the composite web of one by two-layer bonded.

2, complex-frequency vibrating screen according to claim 1, the quantity that it is characterized in that the low frequency electromagnetic vibrator is two, the quantity of high-frequency electromagnetic vibrator is 1-5.

3, complex-frequency vibrating screen according to claim 1, it is characterized in that being sleeved on the outer spring tightening seat of tightening watt cover is taper hole, its tapering is identical with tightening watt cover.

4, complex-frequency vibrating screen according to claim 1, the length that it is characterized in that shaker arm is greater than the length that drives vibrating arm.

5, complex-frequency vibrating screen according to claim 1 is characterized in that screen box passes through to support and the frame flexible connection, and screen box feeding end bottom and frame are equipped with the angular adjustment bar, and frame has the rubber damping spring for four jiaos.