CN201728190U

CN201728190U - Large-size flip-flow screen

Info

Publication number: CN201728190U
Application number: CN2010202638122U
Authority: CN
Inventors: 王海生
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-07-20
Filing date: 2010-07-20
Publication date: 2011-02-02
Anticipated expiration: 2020-07-20

Abstract

The utility model discloses a large-size flip-flow screen which pertains to the field of vibratory screening machines and is designed for improving the screening efficiency and the productivity of the existing flip-flow screen. An inner screening tank is connected with a chassis by a plurality of groups of elastic supports and is sheathed in an outer screening tank; an outer screening tank is hung on the inner screening tank by a plurality of groups of elastic hangers; the cross beams of the inner screening tank and the outer screening tank are arranged in a staggering way, and the upper surfaces thereof are on the same plane; a plurality of elastic screen meshes are arranged on the cross beams of the inner screening tank and the outer screening tank in sequence; a round vibrator with a crank elastic connecting rod is used as the vibrating device and arranged on the feeding end of the inner screening tank; elastic connecting rods are arranged on eccentric shaft necks at two ends of the eccentric shaft of the vibrator; the other ends of the elastic connecting rods are connected with a connecting rod seat at the feeding end of the outer screening tank; the connecting rods are driven to work by a motor; the elastic supports and the elastic hangers of the screening machine enables the flip-flow screen to move more steadily and reliably; and a feeding box is arranged at the feeding end of the inner screening tank, thus improving the service life of the screening machine. The large-size flip-flow screen can be widely used for material screening of the industries of steam coal, mine, building material, primary purification of refuse and sewage in cities, and the like.

Description

Large-scale flip flop screen

Technical field

The utility model belongs to the vibration screening machinery field, and mainly relating to dry type screening, to contain mud, water or powder more, the large-scale flip flop screen of the sticking difficult screened material that looses of fine granularity.

Background technology

Moisture in the fine granularity material more for a long time, material very easily sticks on the compass screen surface, the screening efficiency of general vibratory sieve is significantly reduced, even influence ordinary production.Flip flop screen is by the stretched and relaxed motion of Flexible sieve, make material under the effect of screen cloth amplitude and elastic force, contact wire side continuously, upspring loose and fall motion such as sieve, finish the efficient screening of dry type of the bigger difficult screened material of viscosity and the operation of high productive capacity.The inside and outside screen box of existing flip flop screen is done rightabout reciprocating motion simultaneously, and its supporting arrangement and transmission mechanism be more complicated all, thus the fault rate of flip flop screen than higher, the stability of whole screen(ing) machine is also bad.

Summary of the invention

The purpose of this utility model provides a kind of large-scale flip flop screen, but this flip flop screen dry type is sieved the bigger difficult screened material of viscosity, and can improve the stability and the bulk life time of vibratory sieve greatly.

The technical solution adopted in the utility model is, large-scale flip flop screen mainly is made up of underframe, interior screen box, outer screen box, resilient suspension, elastic bearing, Flexible sieve, vibrating device and motor, it is characterized in that: interior screen box is connected with underframe by many group elastic bearings, is sleeved in the outer screen box; Outer screen box is lifted on the interior screen box by many groups resilient suspension; The inside and outside screen box crossbeam of the installation Flexible sieve of inside and outside screen box below is crisscross arranged, and its upper surface at grade; The multi-disc Flexible sieve is installed in to material feeding end on the screen box crossbeam of inside and outside screen box successively from the discharge end of screen box, and on the screen box crossbeam, opposite side was fixed on the outer screen box crossbeam in a side of screen cloth was fixed on, and adjacent screen mesh is overlapping setting on the screen box crossbeam.Vibrating device is the circular vibration device of band crank elastic link, and the vibrating shaft of circular vibration device is an eccentric shaft, is installed in by bearing block on the mounting rail of interior screen box material feeding end; The two ends of eccentric shaft are provided with the rotor journal that elastic link is installed, and an end of two elastic links is installed on the rotor journal by bearing, and the other end is connected with the connecting rod base of outer screen box material feeding end.The eccentric shaft of circular vibration device is connected with motor by belt pulley; Motor mounting is on the underframe of vibratory sieve.

For strengthening the rigidity of super wide inside and outside screen box crossbeam, screen box longeron and outer screen box longeron in installing respectively below inside and outside screen box crossbeam are formed interior screen box crossbeam group and outer screen box crossbeam group; For adapting to the screening demand of different viscosities material, the installing hole of Flexible sieve is apart from adjusting.To the impact of screen cloth, be provided with feed box when preventing that material from falling at the feeding end of interior screen box.

When large-scale flip flop screen is worked, motor produces exciting force by the eccentric shaft that belt transmits torque drive circular vibration device, make inside and outside screen box material feeding end do circular vibration, drive the both sides rotor journal simultaneously and make the elastic link motion, elastic link drives outer screen box and does reciprocal approximate straight line motion.The inside and outside screen box crossbeam group of interlaced arrangement drives the multi-disc Flexible sieve and alternately does tension and relaxation motion lax and upwards Zhang Ping downwards.Material on screen cloth by upspring, the program of loose and saturating sieve realizes graded operation.

By adjustment to screen cloth installing hole distance, can make screen cloth when tensioning, produce different tensile elongations, not only can producing jumps plays the different acceleration of material, can also make the screen cloth of elongation, trace by mesh changes, prevent the generation of plug-hole phenomenon, improve screening effect high-viscosity material.

The utility model has the advantages that, adopted band crank elastic link circular vibration device, elastic bearing, resilient suspension, can adjust structures such as pitch-row Flexible sieve and feed box, make the flip flop screen material feeding end have circular vibration; The inside and outside screen box crossbeam group Zhang Yundong that speeds has the feed box springing cloth that is uniformly dispersed, characteristics such as the Flexible sieve life-span is long, screening efficiency is high and production capacity is big.Solved the classification of the sticking material that looses of 3-6mm fine granularity, the super 2200mm of compass screen surface width reaches the high productive capacity of 3500mm.The material that can be widely used in industries such as coal 3-6mm thermal coal, mine, building materials, municipal refuse and sewage primary purifying efficiently sieves.

Description of drawings

Fig. 1 and Fig. 2 are structural representation of the present utility model, and Fig. 2 is A-A and the B-B cutaway view of Fig. 1, and Fig. 3 is that interior crossbeam group is connected the Flexible sieve schematic diagram with outer crossbeam group, and Fig. 4 is the circular vibration device schematic diagram of band crank elastic link, and 1 is underframe among the figure; 2 is interior screen box, and 2.1 is that interior screen box crossbeam, 2.2 is that crossbeam Connection Block, 2.3 is that interior screen box longeron, 2.4 is that feed box, 2.5 is that interior screen box entablature, 2.6 is that mounting rail, 2.7 is that discharge gate, 2.8 is interior sieve box side plate; 3 is outer screen box, and 3.1 is that outer screen box crossbeam, 3.2 is that outer screen box longeron, 3.3 is that outer screen box entablature, 3.4 is that outer sieve box side plate, 3.5 is connecting rod base; 4 is resilient suspension; 5 is Flexible sieve; 6 is the circular vibration devices of being with the crank elastic link, and 6.1 is that elastic link, 6.2 is that self-aligning roller bearing, 6.3 is that elastic plate, 6.4 is that bearing block, 6.5 is that self-aligning roller bearing, 6.6 is that eccentric shaft, 6.7 is that a vestlet, 6.8 is a belt pulley; 7 is motor; 8 is elastic bearing; α is the screen(ing) machine inclination angle.

The specific embodiment

The existing accompanying drawings specific embodiment of the present utility model.Interior screen box 2 is installed on 2 interior sieve box side plates 2.8 by interior screen box crossbeam 2.1, crossbeam Connection Block 2.2, interior screen box longeron 2.3, feed box 2.4, interior screen box entablature 2.5, mounting rail 2.6, discharge gate 2.7 and combines; 2 interior screen box longerons 2.3 connect crossbeam Connection Block 2.2 and form interior screen box crossbeam group with many interior screen box crossbeams 2.1; Outer screen box 3 is combined by outer screen box crossbeam 3.1, crossbeam Connection Block 2.2, outer screen box longeron 3.2, outer screen box entablature 3.3, outer sieve box side plate 3.4, connecting rod base 3.5; Two outer screen box longerons 3.2 connect crossbeam Connection Block 2.2 and form outer screen box crossbeam group with many outer screen box crossbeams 3.1; Interior screen box 2 is connected with underframe 2 by many group elastic bearings 8; Interior screen box 2 and outer screen box 3 mutual sheathing, also independent respectively; Outer screen box is connected with five interior screen box entablatures 2.5 by five resilient suspensions 4, is suspended on the interior screen box 2; The inside and outside screen box crossbeam of inside and outside screen box below is crisscross arranged, and upper surface at grade; 30 Flexible sieves 5 connect to form the tension and relaxation compass screen surface with interior screen box crossbeam 2.1 and outer screen box crossbeam 3.1 respectively.

The circular vibration device 6 of band crank elastic link is installed on the mounting rail 2.6 of interior screen box material feeding end; Eccentric shaft 6.6 is installed in 6.4 holes of bearing block by self-aligning roller bearing 6.5, and two bearing blocks 6.4 are linked to be 1 body with axle vestlet 6.7 and form the circular vibration device; Elastic link 6.1 endoporus assemblings self-aligning roller bearing 6.2, self-aligning roller bearing 6.2 are installed on the rotor journal of eccentric shaft 6.6 both sides forms crank connecting link, and the elastic plate 6.3 on the elastic link 6.1 is connected with the connecting rod base 3.5 of outer screen box.

Interior screen box 2 bottoms connect 8 of elastic bearings on underframe 1; Motor 7 is connected the transmission moment of torsion with the belt pulley 6.8 of the circular vibration device 6 of band crank elastic link and is installed on the underframe 1.

Underframe 1 is welded, is assembled by H shaped steel; According to the needs of material and production capacity, the setting angle α of underframe 1 is 15-25 °; Interior screen box 2 lower springs seats and feed box are pressed α=15-25 ° of coupling with setting angle.

Claims

1. a large-scale flip flop screen mainly is made up of underframe, interior screen box, outer screen box, resilient suspension, elastic bearing, Flexible sieve, vibrating device and motor, it is characterized in that:

Interior screen box (2) is connected with underframe (1) by many group elastic bearings (8), is sleeved in the outer screen box (3); Outer screen box (3) is lifted on the interior screen box (2) by many group resilient suspensions (4); Inside and outside screen box crossbeam (2.1), (3.1) of the installation Flexible sieve (5) of inside and outside screen box below are crisscross arranged, and its upper surface at grade;

Multi-disc Flexible sieve (5) is installed on the screen box crossbeam of inside and outside screen box from the discharge end of screen box successively to material feeding end, one side of screen cloth (5) is fixed on the interior screen box crossbeam (2.1), opposite side is fixed on the outer screen box crossbeam (3.1), and adjacent screen mesh is overlapping setting on the screen box crossbeam;

Vibrating device is the circular vibration device (6) of band crank elastic link, and the vibrating shaft of circular vibration device is eccentric shaft (6.6), is installed in by bearing block (6.4) on the mounting rail (2.6) of interior screen box material feeding end; The two ends of eccentric shaft (6.6) are provided with the rotor journal that elastic link (6.1) is installed, and an end of two elastic links (6.1) is installed on the rotor journal by bearing (6.2), and the other end is connected with the connecting rod base (3.5) of outer screen box (3) material feeding end;

The eccentric shaft of circular vibration device (6.6) is connected with motor (7) by belt pulley (6.8); Motor mounting is on the underframe (1) of vibratory sieve.

2. large-scale flip flop screen according to claim 1 is characterized in that: in install respectively the below of inside and outside screen box crossbeam (2.1), (3.1) screen box longeron (2.3) and outside screen box longeron (3.2), screen box crossbeam group and outer screen box crossbeam group in forming.

3. large-scale flip flop screen according to claim 1 is characterized in that: the installing hole of Flexible sieve (5) is apart from adjusting.

4. large-scale flip flop screen according to claim 1 is characterized in that: the feeding end at interior screen box (2) is provided with feed box (2.4).