CN2645793Y

CN2645793Y - Electromagnetic vibration high-frequency mesh screen

Info

Publication number: CN2645793Y
Application number: CN 200320112062
Authority: CN
Inventors: 李松奕
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-10-27
Filing date: 2003-10-27
Publication date: 2004-10-06
Anticipated expiration: 2013-10-27

Abstract

The utility model discloses an electromagnetic vibration high-frequency mesh screen, which belongs to a screening machine, wherein a screen box is connected with a frame via a support movably, a screen mesh is arranged inside the screen box, a side plate outside the screen box is provided with an electromagnetic vibrator which is connected with a vibrating shaft arranged under a screen mesh via a power bolt and a drive lever, the vibrating shaft is provided with a vibrating arm, the vibrating arm is provided with a rubber cap, the rubber cap supports and vibrates the screen mesh, and the electromagnetic vibrator is controlled by an electromagnetic vibration control cabinet to regulate vibration parameters. The utility model is characterized in that the screen mesh vibrates, but the screen box does not, which has the advantages of high vibrating frequency, good screening effect and easy assembly. Besides, the utility model can be made into a large area high-frequency screen, which is adapted to the screening of granular materials in many fields.

Description

Electromagnetic high frequency vibrating screen

Technical field

The utility model relates to a kind of high frequency vibrating screen, particularly relates to a kind of electromagnetic high frequency vibrating screen.Belong to sieving machine, be specially adapted to the screening operation of the fine of industries such as metal ore dressing, coal coal separation, building glass, brickmaking, pottery, chemical industry chemical fertilizer.

Background technology

Present sieving machine mostly is the complete machine oscillation 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, cause screen box and other attaching parts to be damaged easily and the reliability and service life of reducing whole machinery; In addition, the dynamic loading of passing to ground is also bigger, therefore the bearing capacity on basis 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.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, and provide a kind of electromagnetic vibrator to pass 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, and can make screen(ing) machine the electromagnetic high frequency vibrating screen of maximization.

To achieve these goals, the utility model by the following technical solutions: it is made up of screen box, screen cloth, support frame and shock absorber, electromagnetic vibrator and control device, transmission device.Screen box flexibly connects by supporting base and frame, between the bottom of screen box one end and frame the angular adjustment bar is installed, and four jiaos of frame 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, vertically tensioning is installed, screen cloth is divided into two-layer, and lower floor is holder net, crin macropore, be that the Steel cord viscoelastic polyurethane is knotted, the upper strata is the woven wire cloth of aperture, or polyurethane strip seam net, and the rubber seal press strip is housed on the screen cloth both sides and above the sieve box side plate junction.Be fixed with electromagnetic exciter on the side plate outside the screen box, it is made up of vibrator casing, armature, power transmission bolt, the main rubber spring that shakes, the vibrator casing is consolidated on the sieve box side plate, electromagnet is fixed in vibrator casing top, the upper end of power transmission bolt links together with armature and links to each other with an end of the main rubber spring that shakes, the other end of the main rubber spring that shakes then links to each other with the vibrator casing, the lower end of power transmission bolt links to each other with an end of vibrating arm by rubber spring, form a flexible rubber hinge, the other end of vibrating arm is fixedlyed connected with vibrating shaft; Vibrating shaft crosses the below that screen box is installed in screen cloth, it stretches out on the square axle spindle outside the screen box and is set with the twist mode rubber spring, be set with the locking tapered sleeve on the twist mode rubber spring cylindrical, locking tapered sleeve overcoat is installed watt, it installs shaker arm by on the biside plate that is bolted to screen box on the vibrating shaft, 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.

Owing to adopted technique scheme, the screen cloth vibration, screen box is motionless or have only microvibration, has reduced greatly to join the weight of shaking, thereby has also just reduced exciting force greatly, power consumption is little, save the energy, avoided screen box and other member, prolonged the service life of complete machine owing to vibration damages, load bearing requirements to the basis reduces, and economical and convenient is installed.In addition, it is very big that the screen(ing) machine area can be done, and can adopt the high frequency of 50HZ, the oscillation intensity of screen cloth is big, can exceed general complete machine oscillation formula vibratory sieve more than one times, thereby screen cloth is difficult for plug-hole, the screening efficiency height, disposal ability is big, is particularly useful for dried, the wet sieving of fine.Moreover, because screen box is motionless, be easy to sealing, to dry screening, reduced the pollution of dust to environment, noise is little.

Description of drawings:

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

Fig. 2 is the installation relation and the sealed structural representation of screen cloth of the present utility model and sieve box side plate

Fig. 3 is electromagnetic vibrator of the present utility model and transmission mechanism schematic diagram

Fig. 4 is the scheme of installation of vibrating shaft of the present utility model and sieve box side plate

Fig. 5 is a vibrating structural scheme of mechanism of the present utility model

The specific embodiment

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

The utility model is made up of screen box 2, screen cloth 1, supporting 5, frame 4, shock absorber 8 etc.Referring to Fig. 1, screen box 2 flexibly connects by supporting 5 and frame 4, and screen box 2 one end bottoms and 4 of frames are equipped with angular adjustment bar 7, and four jiaos of frame 4 are equipped with rubber shock absorber 8.Referring to Fig. 2, on the biside plate 10 angle bar 13 is installed in the screen box 2, screen cloth 1 places on the angle bar 13, and tensioning is longitudinally installed, and on the screen cloth 1 of angle bar 13 tops rubber seal press strip 11 is set, and seal trim strip 11 is fixed on the stay pipe 12 that is connected on the side plate.As Fig. 1, Fig. 3, the side plate fixed outside of screen box 2 has electromagnetic exciter 3, and it is made up of vibrator casing 14, electromagnet 15, armature 16, power transmission bolt 17 and the main rubber spring 18 that shakes.Vibrator casing 14 is cemented on the side plate 10 of screen box 2, electromagnet 15 is fixed on the top of vibrator casing 14, armature 16 places the below of electromagnet 15, the upper end of power transmission bolt 17 and armature 16 link together, and link to each other with an end of the main rubber spring 18 that shakes, the other end of the main rubber spring 18 that shakes then links to each other with vibrator casing 14, the lower end of power transmission bolt 17 links to each other with an end of vibrating arm 9 by rubber hinge spring 19, form a flexible rubber hinge, the other end of vibrating arm 9 is fixedlyed connected with vibrating shaft 20; Vibrating shaft 20 crosses screen box 2 and is installed in screen cloth 1 below.Referring to Fig. 4, be set with twist mode rubber spring 22 on the square axle spindle 21 at vibrating shaft 20 two ends, be set with locking tapered sleeve 23 on twist mode rubber spring 22 cylindricals, locking tapered sleeve 23 overcoats are installed watts 24, are fixed on by bolt 25 on the biside plate 10 of screen box 2.Referring to Fig. 5, shaker arm 26 is installed on the vibrating shaft 20, shaker arm 26 upper ends are equipped with rubber cap 27, rubber cap 27 tight holder screen clothes 1, its length and screen cloth 1 are wide.The quantity of electromagnetic exciter 3 of the present utility model is a plurality of, the main rubber spring 18 that shakes is two, and the rubber hinge spring is 2, and the locking tapered sleeve 23 that is sleeved on twist mode rubber spring 22 cylindricals is 4, be contained in the outer slips 24 of locking tapered sleeve and be taper hole, its tapering is identical with locking tapered sleeve 23.Shaker arm 26 on the vibrating shaft 20 is a plurality of, and the length of shaker arm 26 is greater than the length of vibrating arm 9.

During the utility model work, the vibration of the armature 16 of electromagnetic exciter 3 is converted to by power transmission bolt 17 and drives the twisting vibration of vibrating arm 9 around the shimmy and vibrating shaft 20 of vibrating shaft 20, then realize shimmy around vibrating shaft 20 of shaker arm 26 and rubber cap 27, by rubber cap 27 exciting screen clothes 1.Because the length of shaker arm 26 is greater than the length of vibrating arm 9, thereby obtain amplifying can make the vibration of vibrating arm 9 be delivered to rubber cap 27 time.Four jiaos install rubber shock absorber 8 additional and can directly the frame 4 that is supported with screen box 2 be put on the ground and need not to fix below frame 4.Adjusting angle adjusting rod 7 can change the mounted angle of screen box 2.Hinged by the elasticity that rubber hinge spring 19 is formed between power transmission bolt 17 and the vibrating arm 9, can adapt to above-mentioned two at the reciprocal micro angular displacement of vibration processes medium-high frequency, this is more more reliable than metal hinge.Main vibration spring 18, twist mode rubber spring 22 and rubber hinge spring 19 are the flexible member in the vibrational system, the natural frequency of vibration of the vibrational system of forming with mass of vibration is near excited frequency, thereby makes the main vibrating system of exciting screen cloth 1 be in work under the Near resonance oscillating state.

Claims

1, a kind of electromagnetic high frequency vibrating screen comprises screen box, screen cloth, support frame and damper, electromagnetic vibrator and control device, transmission device, it is characterized in that:

A, screen box flexibly connect by supporting base and frame, wherein between bottom of its end and frame the angular adjustment bar are installed, and four jiaos of gantry base are equipped with rubber shock absorber;

B, on the biside plate angle bar is installed in the screen box, screen cloth places on the angle bar, the screen cloth that is positioned at the angle bar top is provided with the rubber press strip, the rubber press strip is fixed on the side plate of screen box by pipe, screen cloth and side sheet room have the sealing of rubber press strip, be fixed with electromagnetic vibrator on the side plate outside the screen box, it is by the vibrator casing, electromagnet, armature, the power transmission bolt, the main rubber spring that shakes is formed, one end of electromagnet and the main rubber spring that shakes is fixed on the vibrator casing, the vibrator casing is fixed on the sieve box side plate, armature and power transmission bolt are fixed, the other end of the main rubber spring that shakes then is connected with the power transmission bolt, the lower end of power transmission bolt is connected with vibrating arm by the hinge rubber spring and forms flexible hingedly, and the other end of vibrating arm is fixedlyed connected with vibrating shaft;

C, vibrating shaft are horizontally through screen box and are installed in the screen cloth below, be set with the twist mode rubber spring on the square axle spindle at its two ends, be set with the locking tapered sleeve on the twist mode rubber spring cylindrical, locking tapered sleeve overcoat is installed watt, it is equipped with shaker arm by on the biside plate that is bolted to screen box on the vibrating shaft, 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.

2, electromagnetic high frequency vibrating screen according to claim 1 is characterized in that, the screen box setting angle is the 23-33 degree.

3, electromagnetic high frequency vibrating screen according to claim 1 is characterized in that, described shock absorber is a rubber shock absorber.

4, electromagnetic high frequency vibrating screen according to claim 1 is characterized in that, the quantity of electromagnetic exciter is provided with one at least.

5, electromagnetic high frequency vibrating screen according to claim 1 is characterized in that, power transmission bolt and armature are consolidated, and links to each other with a shake end of rubber spring of the master of two parallel connections, and the other end of the main rubber spring that shakes links to each other with the vibrator casing.

6, electromagnetic high frequency vibrating screen according to claim 1, it is characterized in that, power transmission bolt and vibrating arm to be connected to two rubber springs elasticity in parallel hinged, an end of the rubber spring of two parallel connections links to each other with the lower end of power transmission bolt, the other end links to each other with vibrating arm.

7, electromagnetic high frequency vibrating screen according to claim 1, it is characterized in that, vibrating shaft is to be fixedly attached on the biside plate of screen box with two twist mode rubber springs, the endoporus of twist mode rubber spring is fixed on the square axle spindle of vibrating shaft, and its cylindrical is held tightly and is fixed on the sieve box side plate by locking tapered sleeve and slips.

8, electromagnetic high frequency vibrating screen according to claim 1 is characterized in that, the shaker arm quantity on the vibrating shaft is a plurality of, and the length of shaker arm is greater than the length of vibrating arm.

9, electromagnetic high frequency vibrating screen according to claim 1 is characterized in that, compass screen surface is made up of two-layer screen cloth, and lower floor is the holder net, asks online face to lay online.