CN202921557U - Novel near resonant double-mass linear vibrating screen - Google Patents

Novel near resonant double-mass linear vibrating screen Download PDF

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Publication number
CN202921557U
CN202921557U CN 201220637538 CN201220637538U CN202921557U CN 202921557 U CN202921557 U CN 202921557U CN 201220637538 CN201220637538 CN 201220637538 CN 201220637538 U CN201220637538 U CN 201220637538U CN 202921557 U CN202921557 U CN 202921557U
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CN
China
Prior art keywords
plastid
mass
spring
vibration
vibrating screen
Prior art date
Application number
CN 201220637538
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Chinese (zh)
Inventor
李彦
Original Assignee
李彦
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 李彦 filed Critical 李彦
Priority to CN 201220637538 priority Critical patent/CN202921557U/en
Application granted granted Critical
Publication of CN202921557U publication Critical patent/CN202921557U/en

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Abstract

The utility model relates to a novel near resonant double-mass linear vibrating screen, comprising an upper mass and a lower mass, wherein the upper mass is provided with two groups of combination vibration motors, the lower mass is provided with a screen plate, the bottom of the lower mass is provided with a damping spring, the upper mass and the lower mass are connected by a shock excitation spring and a spring plate, and the shock excitation spring and the spring plate incline relative to a horizontal line by 45 degrees, and are arranged in a mutually vertical manner. Due to such structure, the near resonant dual-mass linear vibrating screen disclosed by the utility model can solve the problems of high energy consumption and low screening efficiency of a traditional vibrating screen.

Description

A kind of novel Near resonance oscillating double-plastid rectilinear vibration sieve
Technical field
The utility model relates to a kind of novel Near resonance oscillating double-plastid rectilinear vibration sieve, is applicable to the industries such as metallurgy, colliery, building materials, to screening, dehydration, the de-mediated of various materials.
Background technology
In the middle of vibratory sieve market now, vibratory sieve can be divided into two types by vibration principle and structure: a kind of is to adopt the elemental body technology and the vibration source body that produces exciting force and the link of sieve nest rigidity, structure is integrated.Another kind is to use two plastid technology, and the vibration source body that will produce exciting force is separated design with the vibration sieve nest, and concrete grammar is exactly that upper plastid is designed to sieve nest, lower plastid is designed to the structure of exciting force source body, and the up and down plastid is connected with elastic link.All there is certain shortcoming in these two types of vibratory sieves, and the first elemental body type drives the sieve nest vibration by the centrifugal force of excitor fully, need to consume a large amount of electric power energies, and amplitude is little, and screening efficiency is low.The two plastid types of the second: the vibration source body that produces exciting force belongs to lower plastid, work screening casing belongs to plastid, exciting force need to just can be delivered to upper plastid by the elastic link that connects the up and down plastid, although can realize Near resonance oscillating work, but due to the sieve nest of this kind equipment upper, elastic link namely will support the weight of sieve nest, the stressed of increase elastic link along with inventory also increasing simultaneously, must affect the intrinsic frequency of complete machine like this, along with the working amplitude of the increase sieve nest of inventory can progressively reduce, screening efficiency also just descends.The type Double-mass vibrating screen due to sieve nest upper, the material that sieves out is picked up gear by lower plastid, discharging difficulty, all these drawbacks limit the purposes of the type Double-mass vibrating screen, determined that such Double-mass vibrating screen is only applicable to the light small sieve of material and batcher.Shortcoming for above-mentioned vibratory sieve existence, applied for having invented a kind of novel Near resonance oscillating double-plastid rectilinear vibration sieve, can solve fundamentally that first kind sieve energy consumption is high, screening efficiency is low, the problem that Equations of The Second Kind sieve discharge difficulty, vibration frequency are affected by inventory amount volume less.
Summary of the invention
The utility model purpose is to provide a kind of novel high-efficiency and energy-saving Near resonance oscillating double-plastid rectilinear vibration sieve, solves the problem that traditional vibratory sieve energy consumption is high, screening efficiency is low.
Concrete scheme is as follows:
The utility model is that parallel being rigidly connected of two combination vibration motors that produce exciting force is arranged on composition operational vibration power exciter on upper plastid, sieve plate is arranged on and forms the work screen box on lower plastid, and shock-absorbing spring is installed in the bottom at lower plastid, upper plastid is connected with spring plank with exciting vibration spring with lower plastid, exciting vibration spring and spring plank and level all tilt miter angle, and mutually at right angle setting so just formed the Near resonance oscillating system of a sensitivity.
Combination vibration motor described above by the patent applicant first to file and the examination in the middle of, this combination vibration motor is to be made of vibration source body, motor and rubber coupling, it is characterized in that the motor shaft of eccentric shaft and motor that will produce the vibration source body of exciting force separate, then use rubber shaft joint connection.
When two extraordinary vibrating motors are done synchronously, during antiport, the exciting force that its eccentric block produces is cancelled out each other in the direction that is parallel to two electrical axis, being stacked as one in the direction perpendicular to two motor shafts makes a concerted effort, when motor rotation frequency approaches the intrinsic frequency of upper plastid, upper plastid (vibration excitation device) just produces the Near resonance oscillating phenomenon, on this moment the exciting force of plastid is because the effect of Near resonance oscillating is exaggerated, and this power is delivered to lower plastid (work screen box) with power by miter angle by one group of spring and the spring plank that connects upper plastid and lower plastid.Material is tossed on compass screen surface, and great-jump-forward is moving linearly forward, thereby reach, material is screened purpose with classification.Because the vibration source body that will produce exciting force in this novel Near resonance oscillating double-plastid rectilinear vibration sieve structure design designs, will design as lower plastid for the work part of screening materials carrying as upper plastid, the weight of material that such design increases when making vibratory sieve work only acts on lower plastid, can not produce any impact to the upper plastid eigentone that produces exciting force, thereby the vibration frequency when having guaranteed vibratory sieve work is stable, can not change because of the variation of inventory.In addition due to this used by oscillating screen after the exciting force of screening materials carrying is to be driven upper plastid by vibrating motor and produce the Near resonance oscillating phenomenon, motor is rotarily driven the vibration force that exciting force that eccentric block produces zooms into the whole Near resonance oscillating of upper plastid, this power is delivered to lower plastid through exciting vibration spring again and drives lower mass vibrating, realizes the screening of material is carried.This process can be summarized as: when two vibrating motor with small power rotational frequencies approach upper mass vibrating intrinsic frequency, the exciting force that this moment, the vibrating motor rotation produced has played the effect that excites the plastid Near resonance oscillating, vibration force is exaggerated several times, has realized being driven by low-power machine the effect of large body.Compare with the elemental body system through this pair of on-the-spot test plastid system, this pair plastid system only just can reach identical task performance with less horsepower, and power only has 50% left and right of traditional design power of motor, fully satisfies the long term growth requirement of national energy-saving environmental protection.As time goes on, will produce considerable power saving benefit for the user.
Description of drawings
Fig. 1 is the side view of novel Near resonance oscillating double-plastid rectilinear vibration sieve
1, upper plastid; 2, lower plastid; 3, the combination vibration motor; 4, sieve plate; 5, shock-absorbing spring; 6, exciting vibration spring; 7, spring plank.
The specific embodiment
Press Fig. 1: with two parallel gun iron links of combination vibration motor plastid on upper machine body forms, lower plastid is designed to the vibratory sieve casing, the up and down plastid is connected with spring plank with exciting vibration spring, exciting vibration spring and spring plank and level all tilt miter angle, and mutually at right angle setting so just formed the Near resonance oscillating system of a sensitivity, then with whole machine installation on shock-absorbing spring, just formed Near resonance oscillating double-plastid rectilinear vibration sieve.

Claims (1)

1. a novel Near resonance oscillating double-plastid rectilinear vibration sieves, comprise plastid (1) and lower plastid (2), it is characterized in that installing on described upper plastid two groups of combination vibration motors (3), mounted sieve (4) and shock-absorbing spring (5) is installed in the bottom on lower plastid, upper plastid is connected 7 with exciting vibration spring (6) with spring plank with lower plastid) connect exciting vibration spring and spring plank and level all tilt miter angle, also mutual at right angle setting.
CN 201220637538 2012-11-28 2012-11-28 Novel near resonant double-mass linear vibrating screen CN202921557U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220637538 CN202921557U (en) 2012-11-28 2012-11-28 Novel near resonant double-mass linear vibrating screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220637538 CN202921557U (en) 2012-11-28 2012-11-28 Novel near resonant double-mass linear vibrating screen

Publications (1)

Publication Number Publication Date
CN202921557U true CN202921557U (en) 2013-05-08

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CN 201220637538 CN202921557U (en) 2012-11-28 2012-11-28 Novel near resonant double-mass linear vibrating screen

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CN (1) CN202921557U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103394462A (en) * 2013-08-21 2013-11-20 成都西部石油装备有限公司 Screen frame and screen bed separated double-plastid near resonance screen
CN103769364A (en) * 2014-01-21 2014-05-07 成都西部石油装备有限公司 Novel self-synchronizing bi-motor installing-form resonance screen
CN107161540A (en) * 2017-06-01 2017-09-15 大唐东北电力试验研究所有限公司 A kind of plastid motor synchronizing resonance pendulum vibrating system of twin-engined drives three
CN109622368A (en) * 2018-12-17 2019-04-16 东北大学 A kind of subresonance energy saving type vibration screening/conveyer having effective vibration isolation function
CN109622359A (en) * 2018-12-17 2019-04-16 东北大学 A kind of twin-engined drives Near resonance oscillating Non-Linear Vibration flip flop screen

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103394462A (en) * 2013-08-21 2013-11-20 成都西部石油装备有限公司 Screen frame and screen bed separated double-plastid near resonance screen
CN103394462B (en) * 2013-08-21 2015-08-12 成都西部石油装备股份有限公司 The double mass Near resonance oscillating that a kind of screen frame is separated with sifting bed sieves
CN103769364A (en) * 2014-01-21 2014-05-07 成都西部石油装备有限公司 Novel self-synchronizing bi-motor installing-form resonance screen
CN103769364B (en) * 2014-01-21 2016-01-20 成都西部石油装备股份有限公司 A kind of resonance screens of novel motor synchronizing bi-motor installation form
CN107161540A (en) * 2017-06-01 2017-09-15 大唐东北电力试验研究所有限公司 A kind of plastid motor synchronizing resonance pendulum vibrating system of twin-engined drives three
CN109622368A (en) * 2018-12-17 2019-04-16 东北大学 A kind of subresonance energy saving type vibration screening/conveyer having effective vibration isolation function
CN109622359A (en) * 2018-12-17 2019-04-16 东北大学 A kind of twin-engined drives Near resonance oscillating Non-Linear Vibration flip flop screen
CN109622359B (en) * 2018-12-17 2020-09-15 东北大学 Double-motor driven near-resonance nonlinear vibration relaxation sieve

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