CN205797744U - A kind of double mass vertical vibration antiresonance sieve - Google Patents

A kind of double mass vertical vibration antiresonance sieve Download PDF

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Publication number
CN205797744U
CN205797744U CN201620422875.5U CN201620422875U CN205797744U CN 205797744 U CN205797744 U CN 205797744U CN 201620422875 U CN201620422875 U CN 201620422875U CN 205797744 U CN205797744 U CN 205797744U
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CN
China
Prior art keywords
plastid
exciting
double mass
antiresonance
vibration
Prior art date
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CN201620422875.5U
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Chinese (zh)
Inventor
孙功民
孟祥义
马秀娟
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济南中燃科技发展有限公司
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Priority to CN201620422875.5U priority Critical patent/CN205797744U/en
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Publication of CN205797744U publication Critical patent/CN205797744U/en

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Abstract

A kind of double mass vertical vibration antiresonance sieve, including upper plastid and lower plastid, described upper plastid includes screen cloth and the screen cloth link coordinated with screen cloth, and described screen cloth is fixed on screen cloth link, and in the middle part of described screen cloth, high two ends are low or high middle part, two ends is low;Described lower plastid includes exciting case, exciting vibration spring assembly and vibrator;Described exciting case is connected with upper plastid by exciting vibration spring assembly, and described exciting case is connected with basis by isolation spring assembly;When normally working, under the effect of vibrator, described upper plastid vibrates in vertical direction.

Description

A kind of double mass vertical vibration antiresonance sieve
Technical field
This utility model relates to the technical field of vibrosieve equipment, particularly a kind of double mass vertical vibration antiresonance Sieve.
Background technology
Screening plant is visual plant necessary to the industrial departments such as mine, ore dressing, coal separation, building materials, steam power plant, chemical industry, The quality of its performance will directly affect production capacity and the technical-economic index of these industries.
At present, domestic and international vibrosieve be substantially all employing elemental body far surpass resonance technique be designed research and development.Elemental body shakes There is technological deficiency in dynamic sieve in practice principle: 1. owing to vibrosieve operating frequency far surpasses resonant frequency, required exciting force Bigger, power consumption is the biggest;2. vibrosieve starts and has to pass through resonance region, shaking when crossing resonance region in stopping process Width is 4~7 times of working amplitude, and vibration equipment is big, causes running unstable, is easily damaged, and simultaneous faults rate is higher, adds Maintenance cost, reduces work efficiency, decreases service life;3., when vibrosieve works, amplitude can be along with the increase of feed And reduce, in order to meet production and application requirement, need often to adjust exciting force to keep vibrosieve amplitude according to feeding coal.For Tradition elemental body vibrosieve, its mass of vibration and exciting force are the relations of conflict, the exciting force that mass of vibration is the most required Greatly, the big thickness of component that increases the most again of exciting force is to guarantee its intensity, thus causes the increase of mass of vibration, is unfavorable for shaking Dynamic sieve develops to direction heavy, extra-duty.
The patent of Application No. 200810012489.9 discloses a kind of anti-resonance vibrating sifter, and it includes: screen box is upper Plastid, excitor are lower plastid, main vibration spring, vibrator, isolation spring, basis, motor etc., and on screen box, plastid is that antiresonance is shaken Dynamic sieve working portion, under excitor, plastid is drive part, equipped with vibrator on excitor, passes through between screen box and excitor Main vibration spring is connected, and on the basis of excitor is seated in by isolation spring, motor is arranged on motor rack, and by power transmission shaft and Vibrator is connected, but screen box one end height, one end low dip are arranged in the above application, and screen box shakes along the direction vertical with compass screen surface Dynamic so that the poor stability of screen box vibration, it addition, material runs to low one end from one end that screen box is high, screen box diverse location Wear condition inconsistent, the stability influence that screen box is vibrated by material on screen box is relatively big, here it is the deficiencies in the prior art Part.
Utility model content
Technical problem to be solved in the utility model, it is simply that for the deficiency existing for prior art, and provide a kind of Double mass vertical vibration antiresonance is sieved, and its simple in construction is ingenious.
This programme is achieved by the following technical measures: a kind of double mass vertical vibration antiresonance sieve, including upper matter Body, lower plastid and vibrator,
Described upper plastid includes screen cloth and the screen cloth link coordinated with screen cloth, and described screen cloth is fixed on screen cloth link On, in the middle part of described screen cloth, high two ends are low or high middle part, two ends is low;
Described lower plastid includes exciting case and exciting vibration spring assembly;
Described exciting case is connected with upper plastid by exciting vibration spring assembly, and described exciting case passes through isolation spring assembly and base Plinth connects;
When normally working, under the effect of vibrator, described upper plastid vibrates in vertical direction.
On the basis of technique scheme, it is also possible to have a further technical scheme:
Preferably, ωa=(0.95-1.05) ω, wherein, ωaFor the frequency of vibration of upper plastid, ω is the vibration of vibrator Frequency, k2For the global stiffness of exciting vibration spring assembly, m2Mass of vibration for upper plastid.
Using the technical program, under resonance state, screen cloth vibration is stable.
Preferably, described upper plastid is symmetrical structure.
Preferably, described upper plastid is the most symmetrical on fore-and-aft direction and left and right directions.Using the technical program, material is carried out During screening, the quality of the material entering two ends, screen cloth left and right and rear and front end is suitable, therefore on screen cloth the quality of material to whole The impact of the mass of vibration of upper plastid is less, and the wear condition of two ends, screen cloth left and right and rear and front end is suitable, substantially realizes Synchronization vertical vibration, it is ensured that the uniformity of upper mass vibrating and stability.
Preferably, described exciting vibration spring assembly includes organizing exciting vibration spring more.Use the technical program, by exciting vibration spring group Part increases the exciting force dispersion that vibrator is produced by the stress point of upper plastid, the service life of plastid in raising.
Preferably, described exciting vibration spring is arranged symmetrically with along the vertical line through upper plastid barycenter or is evenly arranged.Use this Technical scheme so that exciting force uniform and stable suffered by upper plastid, is further ensured that the stability of mass vibrating.
Preferably, described isolation spring assembly includes organizing isolation spring more.Use the technical program, by exciting vibration spring group Part increases the exciting force dispersion that vibrator is produced by the stress point of upper plastid, the service life of plastid in raising.
Preferably, described isolation spring is arranged symmetrically with along the vertical line through upper plastid barycenter or is evenly arranged.Use this Technical scheme, is further ensured that the stability of mass vibrating.
Preferably, also including connecting plastid and the limit assembly of lower plastid, described limit assembly is used for retraining plastid Relative motion with lower plastid so that upper plastid and lower plastid only produce the relative motion in vertical direction.Use this technical side Case, arranges stop and ensure that the stability of mass vibrating in startup and stopped process, the most also can reduce due to sieve Cause the situation that upper mass vibrating is unstable owing to material is uneven on net left and right directions and fore-and-aft direction.
Preferably, described limit assembly includes that least one set stop, described stop include symmetrically arranged limiting plate, One end of described limiting plate is connected with exciting case, and the other end is connected with screen cloth link.
Preferably, described limiting plate is resin plate or metal steel strap.
Preferably, described exciting vibration spring includes spring I, dividing plate and the spring II being arranged in exciting case, I, described spring Between exciting box plate and dividing plate, described spring II is between dividing plate and exciting roof box, and described dividing plate is fixedly connected with Connecting shaft, described connecting shaft passes exciting case and fixing with upper plastid is connected, and described spring I and spring II are in compression shape all the time State.
Preferably, described vibrator is arranged on exciting case.Use the technical program, vibrator is arranged on exciting case On, it is possible to the mass of vibration of plastid in reduction, need exciting force to reduce therewith, reduce energy resource consumption, exciting case is not subject to Screen cloth and the impact of screen cloth link, convenient design, additionally, exciting case vibrates hardly, it is easy to ensure rigidity and intensity Requirement.
Preferably, along exciting force produced by the vibrator at the vertical line two ends of plastid barycenter in process on plastid matter The moment that the heart produces is equal in magnitude, in opposite direction.
Preferably, described vibrator is arranged symmetrically with along the vertical line through upper plastid barycenter, and described vibrator is driven by motor Exciting force in the raw vertical direction of movable property, and the exciting force that corresponding vibrator produces is identical, turning of corresponding motor To on the contrary.
Preferably, described upper plastid also includes the stock guide being arranged on below screen cloth, the minus mesh warp that described screen cloth sifts out Stock guide is discharged.
Preferably, the cross section of described screen cloth is V-structure or reverse V-shaped structure.
Preferably, described exciting case is connected with screen cloth link by exciting vibration spring assembly.
The beneficial effects of the utility model are appreciated that from above-mentioned technical scheme: a kind of double mass vertical vibration antiresonance Sieve, including upper plastid, lower plastid and vibrator, described upper plastid includes screen cloth and the screen cloth link coordinated with screen cloth, institute Stating screen cloth to be fixed on screen cloth link, in the middle part of described screen cloth, high two ends are low or high middle part, two ends is low;Described lower plastid includes Exciting case and exciting vibration spring assembly;Described exciting case is connected with upper plastid by exciting vibration spring assembly, described exciting case pass through every The spring assembly that shakes is connected with basis;When normally working, under the effect of vibrator, described upper plastid vibrates in vertical direction.
The technical program overall structure is simple, screen cloth is designed as by this utility model cleverly high two ends, middle part low or Version low in the middle part of the height of two ends, when high two ends, the middle part of screen cloth are low, from middle part charging, two ends discharging;When in screen cloth During the height of low two ends, portion, from two endfeeds, middle part discharging, solve in prior art the defect that screen box one end is high, one end is low, and Improve the screening efficiency of screen cloth;Under the effect of vibrator, upper plastid vibrates in vertical direction so that whole screen cloth is effective Vibration, there is not the vibration on other direction, facilitate the connection between each parts, improve the use longevity of whole screen cloth Life, is provided with screen cloth link, in convenience the installation of plastid and lower plastid be connected.
As can be seen here, this utility model compared with prior art, has substantive distinguishing features and progress, its useful effect implemented Fruit is also apparent from.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical solution of the utility model, the accompanying drawing used required in describing will be made below Introduce simply, it should be apparent that, the accompanying drawing in describing below is only embodiments more of the present utility model, for this area From the point of view of those of ordinary skill, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of embodiment 1;
Fig. 2 is that the B of Fig. 1 is to structural representation;
Fig. 3 is the partial enlargement structural representation in A portion in Fig. 1;
Fig. 4 is the structural representation of embodiment 2;
Fig. 5 is that the B of Fig. 4 is to structural representation;
Fig. 6 is the partial enlargement structural representation in A portion in Fig. 4.
In figure: 1-screen cloth, 2-screen cloth link, 3-exciting case, 4-limiting plate, 5-exciting vibration spring, 5.1-spring I, 5.2- Dividing plate, 5.3-connecting shaft, 5.4-spring II, 5.5-locking member, 6-isolation spring, 7-basis, 8-motor, 9-shaft coupling, 10-swashs Shake device, 11-stock guide, 12-baffle plate.
Detailed description of the invention
For making utility model purpose of the present utility model, feature, the advantage can be the most obvious and understandable, below will fortune With specific embodiment and accompanying drawing, the technical scheme of this utility model protection is clearly and completely described, it is clear that below Described embodiment is only a part of embodiment of this utility model, and not all embodiment.Based on the reality in this patent Execute example, all other embodiments that those of ordinary skill in the art are obtained under not making creative work premise, all belong to Scope in this patent protection.
Embodiment 1
In order to solve in prior art, screen box one end in anti-resonance vibrating sifter is high, low the brought defect in one end, in this reality Execute and screen cloth is designed as the reverse V-shaped version that high two ends, middle part are low by example cleverly, from middle part charging, two ends discharging;In order to Whole screen cloth is effectively vibrated, and vibrator makes plastid vibrate in vertical direction;So that upper mass vibrating Stability so that upper plastid and lower plastid reach resonance state, go up the installation of plastid and lower plastid for convenience and is connected, setting There is screen cloth link, specific as follows:
As Figure 1-3, a kind of double mass vertical vibration antiresonance sieve, including upper plastid and lower plastid, described upper plastid Including screen cloth 1 and the screen cloth link 2 that coordinates with screen cloth 1, described screen cloth 1 is fixed on screen cloth link 2, described screen cloth 1 High two ends, middle part are low;Described lower plastid includes exciting case 3, exciting vibration spring assembly and the vibrator 10 being arranged on exciting case 3; Described exciting case 3 is connected with upper plastid by exciting vibration spring assembly, and described exciting case 3 is by isolation spring assembly with basis 7 even Connect;When normally working, under the effect of vibrator 10, described upper plastid vibrates in vertical direction, and ωa=(0.95- 1.05) ω, wherein, ωaFor the frequency of vibration of upper plastid, ω is the frequency of vibration of vibrator 10, k2For exciting bullet The global stiffness of spring assembly, m2Mass of vibration for upper plastid.
Further, in order to reduce the impact on upper mass vibrating of the material on screen cloth 1 further, upper in the present embodiment Plastid is symmetrical structure on fore-and-aft direction and left and right directions.
Further, in the service life of plastid in raising, the stress point of upper plastid is disperseed, the exciting bullet in the present embodiment Spring assembly includes organizing exciting vibration spring 5 more, and described exciting vibration spring 5 is arranged symmetrically with along the vertical line through upper plastid barycenter, described sharp The spring that shakes includes spring I 5.1, dividing plate 5.2 and the spring II 5.4 being arranged in exciting case, and described spring I 5.1 is positioned at exciting case 3 Between base plate and dividing plate 5.2, described spring II 5.4 is between dividing plate 5.2 and exciting case 3 top board, and described dividing plate 5.2 is fixing even Being connected to connecting shaft 5.3, described connecting shaft 5.3 passes exciting case 3 and fixing with the screen cloth link 2 in upper plastid is connected, described Spring I 5.1 and spring II 5.4 are in compressive state all the time.
Further, in order to ensure the stability of antiresonance sieve vibration, the isolation spring assembly in the present embodiment includes many Group isolation spring 6, described isolation spring 6 is arranged symmetrically with along the vertical line through upper plastid barycenter.
Further, start and the rocking and owing to screen cloth 1 is left of upper plastid in stopped process to reduce antiresonance sieve Cause the situation that upper mass vibrating is unstable in right direction and fore-and-aft direction owing to material is uneven, in the present embodiment, also set Being equipped with the upper plastid of connection and two groups of stops of lower plastid, often group stop includes symmetrically arranged two limiting plates 4, described limit One end of position plate is connected with exciting case 3, and the other end is connected with screen cloth link 2.Described limiting plate can be selected for resin plate or metal Steel band, it is preferred that spacing plate is horizontally mounted.
Further, the vibrator 10 in the present embodiment is arranged symmetrically with along the vertical line through upper plastid barycenter, described sharp The device 10 that shakes is driven the exciting force produced in vertical direction by motor 8, and the exciting force that corresponding vibrator 10 produces is identical, Turning to of corresponding motor 8 is contrary.
Further, the upper plastid in the present embodiment also includes the stock guide 11 being arranged on below screen cloth 1, described screen cloth 1 The minus mesh sifted out is discharged through stock guide 11.
Embodiment 2
It is with the difference of above-described embodiment, as Figure 4-Figure 6, low in the middle part of the height of described screen cloth 1 two ends, during work, From two endfeeds, middle part discharging, described screen cloth 1 end is provided with the baffle plate 13 for separating oversize and minus mesh.
In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is and other The difference of embodiment, identical similar portion reference mutually between each embodiment.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses this practicality new Type.Multiple amendment to these embodiments will be apparent from for those skilled in the art, is determined herein The General Principle of justice can realize in the case of without departing from spirit or scope of the present utility model in other embodiments.Cause This, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The widest scope consistent with the feature of features of novelty, creativeness.

Claims (28)

1. a double mass vertical vibration antiresonance sieve, including upper plastid, lower plastid and vibrator, is characterized in that:
Described upper plastid includes screen cloth and the screen cloth link coordinated with screen cloth, and described screen cloth is fixed on screen cloth link, In the middle part of described screen cloth, high two ends are low or high middle part, two ends is low;
Described lower plastid includes exciting case and exciting vibration spring assembly;
Described exciting case is connected with upper plastid by exciting vibration spring assembly, and described exciting case is by isolation spring assembly with basis even Connect;
When normally working, under the effect of vibrator, described upper plastid vibrates in vertical direction.
Double mass vertical vibration antiresonance the most according to claim 1 is sieved, and it is characterized in that: ωa=(0.95-1.05)ω, its In, ωaFor the frequency of vibration of upper plastid, ω is the frequency of vibration of vibrator,, k2For exciting vibration spring assembly total just Degree, m2For the mass of vibration on upper plastid.
Double mass vertical vibration antiresonance the most according to claim 1 is sieved, and it is characterized in that: described upper plastid is symmetrical junction Structure.
Double mass vertical vibration antiresonance the most according to claim 2 is sieved, and it is characterized in that: described upper plastid is symmetrical junction Structure.
Double mass vertical vibration antiresonance the most according to claim 3 is sieved, and it is characterized in that: described upper plastid is at fore-and-aft direction The most symmetrical with on left and right directions.
Double mass vertical vibration antiresonance the most according to claim 4 is sieved, and it is characterized in that: described upper plastid is at fore-and-aft direction The most symmetrical with on left and right directions.
Double mass vertical vibration antiresonance the most according to claim 1 is sieved, and it is characterized in that: described exciting vibration spring assembly includes Organize exciting vibration spring more.
Double mass vertical vibration antiresonance the most according to claim 2 is sieved, and it is characterized in that: described exciting vibration spring assembly includes Organize exciting vibration spring more.
Double mass vertical vibration antiresonance the most according to claim 7 is sieved, and it is characterized in that: described exciting vibration spring is along process The vertical line of upper plastid barycenter is arranged symmetrically with or is evenly arranged.
Double mass vertical vibration antiresonance the most according to claim 8 is sieved, and it is characterized in that: described exciting vibration spring is along warp The vertical line crossing plastid barycenter is arranged symmetrically with or is evenly arranged.
11. double mass vertical vibration antiresonance according to claim 1 sieves, is characterized in that: described isolation spring assembly bag Include and organize isolation spring more.
12. double mass vertical vibration antiresonance according to claim 2 sieves, is characterized in that: described isolation spring assembly bag Include and organize isolation spring more.
13. double mass vertical vibration antiresonance according to claim 11 sieve, it is characterized in that: described isolation spring along Vertical line through upper plastid barycenter is arranged symmetrically with or is evenly arranged.
14. double mass vertical vibration antiresonance according to claim 12 sieves, is characterized in that: described isolation spring is along warp The vertical line crossing plastid barycenter is arranged symmetrically with or is evenly arranged.
15. double mass vertical vibration antiresonance according to claim 1 sieves, is characterized in that: also include connecting plastid and The limit assembly of lower plastid, described limit assembly is for retraining plastid and the relative motion of lower plastid so that upper plastid and under Plastid only produces the relative motion in vertical direction.
16. double mass vertical vibration antiresonance according to claim 2 sieves, is characterized in that: also include connecting plastid and The limit assembly of lower plastid, described limit assembly is for retraining plastid and the relative motion of lower plastid so that upper plastid and under Plastid only produces the relative motion in vertical direction.
17. double mass vertical vibration antiresonance according to claim 15 sieve, it is characterized in that: described limit assembly include to Few one group of stop, described stop includes that symmetrically arranged limiting plate, one end of described limiting plate are connected with exciting case, another End is connected with screen cloth link.
18. double mass vertical vibration antiresonance according to claim 16 sieve, it is characterized in that: described limit assembly include to Few one group of stop, described stop includes that symmetrically arranged limiting plate, one end of described limiting plate are connected with exciting case, another End is connected with screen cloth link.
19. double mass vertical vibration antiresonance according to claim 17 sieves, is characterized in that: described limiting plate is resin plate Or metal steel strap.
20. double mass vertical vibration antiresonance according to claim 18 sieves, is characterized in that: described limiting plate is resin plate Or metal steel strap.
21. sieve according to the double mass vertical vibration antiresonance described in claim 3 or 4 or 5 or 6, it is characterized in that: described exciting bullet Spring includes spring I, dividing plate and the spring II being arranged in exciting case, described spring I between exciting box plate and dividing plate, institute Stating spring II between dividing plate and exciting roof box, described dividing plate is fixedly connected with connecting shaft, and described connecting shaft passes exciting Case also fixing with upper plastid is connected, and described spring I and spring II are in compressive state all the time.
22. sieve according to the double mass vertical vibration antiresonance described in claim 2-16 any claim, it is characterized in that: described Vibrator is arranged on exciting case.
23. double mass vertical vibration antiresonance according to claim 22 sieves, is characterized in that: along plastid matter in process The moment that upper plastid barycenter is produced by exciting force produced by the vibrator at the vertical line two ends of the heart is equal in magnitude, in opposite direction.
24. double mass vertical vibration antiresonance according to claim 23 sieves, is characterized in that: described vibrator is along process The vertical line of upper plastid barycenter is arranged symmetrically with, and described vibrator is driven, by motor, the exciting force produced in vertical direction, and relatively The exciting force that the vibrator answered produces is identical, and turning to of corresponding motor is contrary.
25. sieve according to the double mass vertical vibration antiresonance described in claim 1-16 any claim, it is characterized in that: described Upper plastid also includes the stock guide being arranged on below screen cloth, and the minus mesh that described screen cloth sifts out is discharged through stock guide.
26. sieve according to the double mass vertical vibration antiresonance described in claim 1-16 any claim, it is characterized in that: described The cross section of screen cloth is V-structure or reverse V-shaped structure.
27. sieve according to the double mass vertical vibration antiresonance described in claim 1-16 any claim, it is characterized in that: described Exciting case is connected with screen cloth link by exciting vibration spring assembly.
28. double mass vertical vibration antiresonance according to claim 26 sieves, is characterized in that: described exciting case passes through exciting Spring assembly is connected with screen cloth link.
CN201620422875.5U 2016-05-11 2016-05-11 A kind of double mass vertical vibration antiresonance sieve CN205797744U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105772395A (en) * 2016-05-11 2016-07-20 济南中燃科技发展有限公司 Double-mass vertical vibration anti-resonance screen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105772395A (en) * 2016-05-11 2016-07-20 济南中燃科技发展有限公司 Double-mass vertical vibration anti-resonance screen
CN105772395B (en) * 2016-05-11 2019-06-28 济南中燃科技发展有限公司 A kind of double mass vertical vibration antiresonance sieve

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