CN202045073U

CN202045073U - Three-freedom-degree hybrid vibrating screen

Info

Publication number: CN202045073U
Application number: CN2011200470263U
Authority: CN
Inventors: 周志强; 周善月
Original assignee: 周志强
Priority date: 2011-02-25
Filing date: 2011-02-25
Publication date: 2011-11-23
Anticipated expiration: 2021-02-25

Abstract

The utility model relates to a three-freedom-degree hybrid vibrating screen which belongs to the field of vibrating and screening equipment. The three space freedom degrees of the vibrating screen can be achieved. The three-freedom-degree hybrid vibrating screen is a three-freedom-degree hybrid connection mechanism consisting of three groups of eccentric wheel rocker mechanisms. The three parallel mechanisms can drive the screen to horizontally move back and forth in the (X) direction, to vibrate up and down in the (Y) direction and to swing left and right in the (Z) direction. Three groups of power mechanisms are independent mechanisms, so the groups of power mechanisms can be either undependable or combined. Motors of the three groups of the power mechanisms are controlled by a frequency converter, so that the vibrating frequency of any group can be changed freely. The materials can jump in the multiple directions by different amplitudes and different frequencies in the vibrating screen, so as to meet the screening demand of different materials. The three-freedom-degree hybrid vibrating screen is convenient to use, has high efficiency, and can be used for vibrating and screening of materials such as medicines, chemicals and crops.

Description

A kind of Three Degree Of Freedom series-parallel connection vibratory sieve

Affiliated technical field

The utility model relates to a kind of Three Degree Of Freedom series-parallel connection vibratory sieve, can realize the vibration of three spatial degrees of freedom of vibratory sieve work simultaneously, can be used for material vibrosieves such as medicine, chemical industry and crops, belongs to the vibrosieve apparatus field.

Background technology

Vibratory sieve has number of different types both at home and abroad at present, but the vibration of all vibratory sieves has only 1-2 the free degree.Especially the material vibrosieve that uses in industries such as medicine, chemical industry and crops generally uses remains single-degree-of-freedom linear pattern reciprocating oscillating screen.Traditional vibratory sieve only relies on the raising oscillation intensity to improve the limited in one's ability of screening efficiency because vibrational degrees of freedom is few, and the store list direction is stressed, can not be on compass screen surface rapidly evenly, and the material of accumulation forms the dead angle easily on compass screen surface.Especially for the screening of materials of some difficult screenings (as moist particulate viscous material etc.), folk prescription is difficult to allow the very fast separation of material to vibration.Adopt multivariant vibratory sieve can effectively solve an above difficult problem.

Summary of the invention

In order to overcome the few defective of the existing vibratory sieve free degree, the utility model provides a kind of can realize the three-dimensional series-parallel connection vibratory sieve that moves.Driving mechanism of the present utility model is made up of the eccentric wheel endplay device of three-group linkage, can realize that material does beating of 2-3 direction on compass screen surface, realizes that material separates rapidly, thereby has improved screening efficiency.

The technical scheme that its technical problem that solves the utility model adopts is: formed the sliding system under the sieve nest by bearing, slide bar and slide, the vibration sieve nest connects with the driving mechanism of different direction of vibration by sliding system.(X) eccentric wheel, the connecting rod of direction before by sieve nest drives sieve nest and moves forward and backward as horizontal direction; (Y) direction is utilized the exciting force of the rotating eccentricity piece under the sieve nest to drive sieve nest and is made up-down vibration; Driving sieve nest when (Z) direction is pumped by the drive of the connecting rod of eccentric wheel under sieve nest sieve nest one side swings on the sliding system as fulcrum.Separate between three designed direction driving mechanisms, control respectively by electrical equipment.The power of eccentric wheel endplay device can come speed governing by frequency converter, and the amplitude of vibration can change by the size of regulating eccentric arm.

The beneficial effects of the utility model are: not only can make the freedom of motion of vibratory sieve be increased to 3, and, can select needed number of degrees of freedom, arbitrarily according to need of work; Simultaneously, the vibration frequency of three directions and amplitude are also adjustable arbitrarily.This project organization is simple, regulates and control very convenient.Material is made multi-dimensional movement on compass screen surface, do not have the dead angle, should not pile up, separate fast, efficient is high.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is three kinds of direction of vibration schematic diagrames in parallel of the present utility model

Fig. 2 is three kinds of drives structure diagrammatic side views of vibratory sieve parallel institution

Fig. 3 is a vibratory sieve side-to-side vibrations drives structure sketch

Among the figure: 1. vibratory sieve casing, 2. vibratory sieve base, 3. angled eccentric wheel vibrator with casing, 4. connecting rod 1, and 5. connecting

rod

2,6. eccentric wheel 1, and 7. eccentric wheel 2, and 8. the eccentric wheel electrical axis 1, and 9. the eccentric wheel electrical axis 2,10, sieve base bearing, 11. slides, 12. slide bars

The specific embodiment

In Fig. 2,3 examples, this vibratory sieve is made up of to driving mechanism (7), (5) to driving mechanism (6), (4) and Z to driving mechanism (3), X sieve nest (1), sieve base (2), Y.

In example shown in Figure 1, vibratory sieve is formed the hybrid mechanism of a Three Degree Of Freedom by the eccentric wheel endplay device of three-group linkage, sieve nest before and after doing respectively under the effect of different directions power (X), up and down (Y) vibration and about (Z) swing.

In example shown in Figure 2, be connected the following one group of bearing (10) of vibratory sieve casing (1), be fixed on the slide bar (12), the litter two ends are connected with sieve base (2) by sleeve base (11).The sliding system of being made up of case base bearing (10), litter (12) and slide (11) becomes the fulcrum between connect box (1) and the base (2).Casing (1) utilizes bearing (10) to make Z to rotation on slide bar, also can make X in sliding sleeve (11) lining with slide bar (12) and move forwards, backwards.

In example shown in Figure 2, two vibrating motors (3) are housed under the vibratory sieve base, it is to produce exciting force by the rotation of the eccentric block on the motor shaft.Exciting force is passed to cabinet base (2), passes to casing (1) by sliding system again and produces resonance.The relative compass screen surface of two motor shafts has an inclination angle.In figure two illustrated embodiments, when two vibrating motors are done the rotation of synchronous, anti-narrow-necked earthen jar, the exciting force that its eccentric block produced is cancelled out each other in the direction that is parallel to electrical axis, is stacked as one in the direction perpendicular to motor shaft and makes a concerted effort, and the movement locus that makes vibrating scalper is a straight line.Because the relative compass screen surface of motor shaft has an inclination angle, under the force action of gravity, material is thrown on compass screen surface makes great-jump-forward rectilinear motion forward at exciting force and material, thereby reach material is screened purpose with classification.According to the needs of screening material, we have designed the eccentric block of multiple different radiuses of rotation, to adapt to the needs of various amplitude.

In embodiment illustrated in fig. 2, the eccentric wheel of driven by motor (6) is around axle center (8) rotation, and connecting rod (4) two ends are connected with eccentric wheel, screen frame respectively.Drivening rod is by stroke (amplitude) swing of eccentric arm twice when eccentric wheel rotates, and makes level (X) direction move forward and backward on dragging track thereby drive sieve nest.The connecting rod fixing threaded hole that several different eccentric arms are arranged on the eccentric wheel can screen needs according to material and change the amplitude size by regulating eccentric arm.

In the embodiment shown in fig. 3, sieve nest weight is by sliding system and connecting rod (5) together support. and the eccentric wheel of driven by motor (7) is around axle center (9) rotation, and connecting rod (5) two ends are connected with a side of eccentric wheel (7), screen frame (1) respectively.Move as above-below direction by the stroke (amplitude) of connecting rod drive sieve nest one side by the eccentric arm twice when eccentric wheel rotates, casing is utilizing bearing (10) to swing as arc on slide bar (12) under the drive of connecting rod.The connecting rod fixing threaded hole of several different eccentric arms is equally also arranged on this eccentric wheel, can screen needs according to material during use, utilize the adjusting eccentric arm to change amplitude of oscillation size.

In Fig. 2,3 illustrated embodiments, three groups of actuating units are independent agency, but therefore independent operation, use also capable of being combined.The motor of three groups of actuating units is regulated and control by frequency converter, thereby can arbitrarily change any group vibration frequency.Therefore, the design can satisfy the demand of different material.

Claims

1. a Three Degree Of Freedom series-parallel connection vibratory sieve can be realized the vibration of three spatial degrees of freedom of vibratory sieve work simultaneously, and its feature is made of the driving mechanism of vibratory sieve the eccentric wheel endplay device of three groups of different driving directions.

2. according to according to the described Three Degree Of Freedom series-parallel connection of claim 1 vibratory sieve, it is characterized in that: formed the sliding system under the sieve nest by bearing, slide bar and slide, vibrated sieve nest and be connected with the base of doing up-down vibration by sliding system; Having utilized simultaneously sliding system to carry out front and back again slides and swings.

3. Three Degree Of Freedom series-parallel connection vibratory sieve according to claim 1 is characterized in that: (X) eccentric wheel, the connecting rod of direction before by sieve nest drives sieve nest and moves forward and backward as horizontal direction; (Y) direction is utilized the exciting force of the rotating eccentricity piece under the sieve nest to drive sieve nest and is made up-down vibration; Driving sieve nest when (Z) direction is pumped by the drive of the connecting rod of eccentric wheel under sieve nest sieve nest one side swings on the sliding system as fulcrum.

4. Three Degree Of Freedom series-parallel connection vibratory sieve according to claim 1 is characterized in that: the weight of sieve nest is by the sliding system together support under pull bar that is connected the side and the casing.