CN201431961Y - Variable-elliptic-orbit equal-thickness vibrating screen - Google Patents
Variable-elliptic-orbit equal-thickness vibrating screen Download PDFInfo
- Publication number
- CN201431961Y CN201431961Y CN2009200448258U CN200920044825U CN201431961Y CN 201431961 Y CN201431961 Y CN 201431961Y CN 2009200448258 U CN2009200448258 U CN 2009200448258U CN 200920044825 U CN200920044825 U CN 200920044825U CN 201431961 Y CN201431961 Y CN 201431961Y
- Authority
- CN
- China
- Prior art keywords
- screen
- screen box
- transmission shaft
- elliptic
- box
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 230000008878 coupling Effects 0.000 claims abstract description 8
- 238000010168 coupling process Methods 0.000 claims abstract description 8
- 238000005859 coupling reaction Methods 0.000 claims abstract description 8
- 239000004744 fabric Substances 0.000 claims description 3
- 239000012190 activator Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 18
- 230000033001 locomotion Effects 0.000 abstract description 13
- 238000012216 screening Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 2
- 230000005284 excitation Effects 0.000 abstract 4
- 239000003245 coal Substances 0.000 abstract 1
- 238000009738 saturating Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 241001347978 Major minor Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001404 mediated effect Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The utility model relates to a variable-elliptic-orbit equal-thickness vibrating screen, which is suitable for size grading and medium draining of raw coal, ores and other materials and comprises a screen box, an elastic support, a single vibration excitation transmission shaft, eccentric vibration exciters, a motor, a motor base and a coupling with an rubber tire element, wherein the screen box is formed by a screen plate and a screen net, the elastic support is formed by a front support and a rear support for supporting the screen box, the single vibration excitation transmission shaft is arranged on the screen box and the eccentric vibration exciters are arranged at the two ends of the single vibration excitation transmission shaft. The single vibration excitation transmission shaft isarranged at a position deviated from the center of mass of the screen box and is installed obliquely above the center of mass of the entire screen box. The position of the single vibration excitationtransmission shaft is not coincided with the center of mass of the entire screen box. The elliptic-orbit travel produced at the feed end of the screen surface is large. The elliptic long axis from thefeed end to the middle part of the screen body is gradually reduced. The characteristics of the traditional same balanced elliptic motion mode and the equal strength applied to the screen box are changed. Thereby, the utility model has the advantages that the material delivery capacity of the feed end of the vibrating screen is strong, the size distribution at the feed end is evenly layered, thestructure is simple, the screening probability is high and the using effect is good.
Description
Technical field
The utility model relates to a kind of vibratory sieve, especially a kind of variable ellipticorbit equal-thickness vibrating screen that is applicable to that grading, de-mediated are carried out in fields such as colliery, metallurgy, chemical industry, environmental protection to material.
Background technology
Present domestic and international employed elliptically vibrating screen, generally be twin shaft or three, normally form by screen box, base and vibrator, vibrator comprises the vibrating shaft of motor and band eccentric block, the rotation of motor drives vibrating shaft promptly produces centrifugal intertia force (exciting force), thereby makes vibratory sieve make translational motion.When the centre of force of centrifugal intertia force overlapped with the whole barycenter of vibratory sieve screen box, vibratory sieve screen box integral body was made translational motion, and the movement locus of each point is all identical with the center of mass motion track on the screen box.Movement locus, transporting velocity and the throwing index etc. that are the screen box each point are all identical, and the compass screen surface movement locus is single, and the compass screen surface motion mode is undesirable, thereby screening efficiency is not high; Three shaft vibration sieve structure complexity simultaneously, the installation accuracy height is unfavorable for the large scale development of vibratory sieve.Uniform thickness sieve compass screen surface motion mode can make material keep identical or cumulative thickness on compass screen surface, reaches comparatively desirable compass screen surface motion mode, but uniform thickness sieve sieve nest height is big, and the occupation of land space is bigger, while sieve nest complex structure, and the maintenance capacity during use is also big.
Summary of the invention
The purpose of this utility model is the weak point that overcomes in the prior art, provides a kind of screening effect good, simple in structure single shaft variable ellipticorbit equal-thickness vibrating screen.
For achieving the above object, the technical solution of the utility model: it comprises the screen box that sieve plate and screen cloth are formed, support the preceding bearing of screen box and the elastic support that rear support is formed, be located at single exciting power transmission shaft and the eccentric activator that is located at single exciting power transmission shaft two ends on the screen box, motor, motor base (frame), coupling with rubber type element, the position deviation screen box barycenter that described single exciting power transmission shaft is provided with, being positioned at the whole barycenter horizontal sextant angle of screen box is that β, distance are the oblique upper of L, and the barycenter with screen box integral body does not overlap.
Described single exciting power transmission shaft position is about pi/2～π apart from the horizontal sextant angle β of the whole barycenter of screen box, and distance L is about 0.20～2.05m.
Beneficial effect: characteristics and screen box that the utility model has changed the identical motor pattern of traditional balanced elliptic are subjected to the equal strength mode of action, according to the principle of screening with constant bed thickness, have obtained meeting the variable ellipticorbit equal-thickness vibrating screen of desirable compass screen surface movement characteristic.The elliptical orbit stroke ratio that produces at the compass screen surface feeding end is bigger, and promptly long axis of ellipse is bigger, and the middle part long axis of ellipse diminishes gradually from the feeding end to the sieve nest.Because long axis of ellipse is to strengthen the component of mass transport, illustrates that the ability of this vibratory sieve feeding end convey materials is more intense, can make the feeding end size distribution more widely material have enough energy to travel forward, help even laminating, material sieves probability thoroughly and increases; As calculated as can be known, along on the screen length direction, from the feeding end to the exhaust end, material movement speed is decrement states, can guarantee that compass screen surface has rational thickness of feed layer, gives full play to the saturating sieve potentiality of material; The throwing index of vibratory sieve feeding end is bigger, compare with the throwing index of the balanced elliptic of same specification sieve and to have improved 18.93%, can make the effective layering of the thicker material of this section, the middle part throwing index reduces gradually from the feeding end to the sieve nest, thereby guaranteed that each section of sieve nest has rational impelling index, strengthened screening process.Owing at the compass screen surface feeding end bigger throwing index and high materials flow speed are arranged, thereby guaranteed passing through fast and material fast hierarchical on compass screen surface of bulk materials, make fine particle quickly near compass screen surface, saturating smoothly sieve.Interlude reaches the throwing index of common sieve method and bigger materials flow speed, makes along on the screen length direction, and fine particle stage material stream is stable substantially, saturating relatively uniformly sieve.Lower slightly near exhaust end throwing index and materials flow speed than the index of common screening machine, make material long slightly, fully saturating sieve in the compass screen surface time of staying.On the compass screen surface each point from feeding end to exhaust end, its vibration inclination angle is also diminished gradually by high inclination-angle, by the inclination angle, fine layering in the relatively thin bed of material is sieved thoroughly, improve the actual efficiency of compass screen surface, therefore become the screening efficiency that the elliptical orbit vibratory sieve has effectively improved vibratory sieve.
Description of drawings
Fig. 1 is the schematic diagram of main TV structure of the present utility model.
Fig. 2 is the schematic diagram of left TV structure of the present utility model.
The specific embodiment
The utility model will be further described below in conjunction with the embodiment in the accompanying drawing:
Fig. 1, shown in Figure 2, the utility model variable ellipticorbit equal-thickness vibrating screen, mainly by screen box, elastic support, excitor, motor 4 and motor base (frame) 5 are formed.Screen box is made up of sieve plate 1 and screen cloth 9, elastic support is made of preceding bearing 3 and rear support 6, be respectively equipped with rubber spring 2 and upper bracket 10 on the bearing of front and back, the centering type vibrator 7 that excitor is established thereon by single exciting power transmission shaft 8 and symmetry constitutes, and centering type vibrator 7 is made up of parts such as main eccentric block, secondary eccentric block, bearing block, axle, rolling bearing and glands.Preceding bearing 3 is low, rear support 6 height, screen box is tilted to support, motor 4 and motor base (frame) 5 are located at a side of screen box, single exciting power transmission shaft 8 links by coupling with rubber type element 11 and motor 4, the position deviation screen box barycenter o that single exciting power transmission shaft 8 is provided with, being positioned at the whole barycenter o of screen box horizontal sextant angle is that β, distance are the oblique upper of L, horizontal sextant angle β is about pi/2～π, distance L is about 0.20～2.05m, the barycenter with screen box integral body does not overlap, and promptly single exciting power transmission shaft 8 axis do not overlap with the barycenter of screen box integral body.Vibratory sieve is directly realized transmission by shock electric machine 4 by coupling with rubber type element 11.By adjusting the relative position of vibrating shaft and screen box barycenter o, just can realize that the movement locus of each point is the different ellipse of major and minor axis on the screen box, reach rational migration velocity and throwing intensity thus, improve screening efficiency.
The vibrating shaft of the utility model vibratory sieve adopts single shaft, and motor adopts shock electric machine.The exciting force of vibrator produces during by the major and minor eccentric block rotation of piece centering type vibrator, and the size of exciting force is adjusted by the angle of major-minor eccentric block.Between two piece centering type vibrators, use the Hooks coupling universal coupling propeller shaft couplings, and two vibrator positions are symmetrical fully.The exciting line of action of force of Chan Shenging just in time acts in the side plate plane like this, and directly by side plate, stress condition is more favourable in the transmission of power.
Claims (2)
1. variable ellipticorbit equal-thickness vibrating screen, comprise the screen box that sieve plate (1) and screen cloth (9) are formed, support the preceding bearing (3) of screen box and the elastic support that rear support (6) is formed, be located at the single exciting power transmission shaft (8) on the screen box and be located at the eccentric activator (7) at single exciting power transmission shaft (8) two ends, motor (4), motor base (frame) (5), coupling with rubber type element (11), it is characterized in that: the position deviation screen box barycenter (o) that described single exciting power transmission shaft (8) is provided with, being positioned at whole barycenter (o) horizontal sextant angle of screen box is β, distance is the oblique upper of L, does not overlap with the barycenter (o) of screen box integral body.
2. variable ellipticorbit equal-thickness vibrating screen according to claim 1 is characterized in that: described single exciting power transmission shaft (8) position is about pi/2～π apart from the horizontal sextant angle β of the whole barycenter of screen box (o), and distance L is about 0.20～2.05m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200448258U CN201431961Y (en) | 2009-05-20 | 2009-05-20 | Variable-elliptic-orbit equal-thickness vibrating screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200448258U CN201431961Y (en) | 2009-05-20 | 2009-05-20 | Variable-elliptic-orbit equal-thickness vibrating screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201431961Y true CN201431961Y (en) | 2010-03-31 |
Family
ID=42050775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200448258U Expired - Lifetime CN201431961Y (en) | 2009-05-20 | 2009-05-20 | Variable-elliptic-orbit equal-thickness vibrating screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201431961Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101890405B (en) * | 2009-05-20 | 2013-01-02 | 中国矿业大学 | Variable ellipticorbit equal-thickness vibrating screen |
| CN106799349A (en) * | 2015-11-26 | 2017-06-06 | 池州市方圆矿山机械制造有限公司 | A kind of circular motion shaking screen |
| CN107597563A (en) * | 2017-10-26 | 2018-01-19 | 淮北龙鼎工贸有限责任公司 | Multisection type three-axis elliptic type vibratory sieve |
| CN109382310A (en) * | 2017-08-05 | 2019-02-26 | 新乡格林机械股份有限公司 | Four axis anharmonic formula vibrating screens of one kind and its screening technique |
| CN110877010A (en) * | 2019-12-05 | 2020-03-13 | 新乡市三圆堂机械有限公司 | High-precision square swing screen |
| CN110883056A (en) * | 2019-11-28 | 2020-03-17 | 福建南方路面机械有限公司 | Screening system and method for recycled aggregate recovery |
| CN112536220A (en) * | 2020-12-11 | 2021-03-23 | 中国矿业大学 | Space body distribution excitation track-changing vibrating screen |
| CN112642702A (en) * | 2021-01-05 | 2021-04-13 | 中国矿业大学 | High-efficient double-deck multistage shale shaker |
-
2009
- 2009-05-20 CN CN2009200448258U patent/CN201431961Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101890405B (en) * | 2009-05-20 | 2013-01-02 | 中国矿业大学 | Variable ellipticorbit equal-thickness vibrating screen |
| CN106799349A (en) * | 2015-11-26 | 2017-06-06 | 池州市方圆矿山机械制造有限公司 | A kind of circular motion shaking screen |
| CN109382310A (en) * | 2017-08-05 | 2019-02-26 | 新乡格林机械股份有限公司 | Four axis anharmonic formula vibrating screens of one kind and its screening technique |
| CN109382310B (en) * | 2017-08-05 | 2023-09-29 | 新乡格林机械股份有限公司 | Four-axis non-harmonic vibrating screen and screening method thereof |
| CN107597563A (en) * | 2017-10-26 | 2018-01-19 | 淮北龙鼎工贸有限责任公司 | Multisection type three-axis elliptic type vibratory sieve |
| CN110883056A (en) * | 2019-11-28 | 2020-03-17 | 福建南方路面机械有限公司 | Screening system and method for recycled aggregate recovery |
| CN110877010A (en) * | 2019-12-05 | 2020-03-13 | 新乡市三圆堂机械有限公司 | High-precision square swing screen |
| CN112536220A (en) * | 2020-12-11 | 2021-03-23 | 中国矿业大学 | Space body distribution excitation track-changing vibrating screen |
| CN112642702A (en) * | 2021-01-05 | 2021-04-13 | 中国矿业大学 | High-efficient double-deck multistage shale shaker |
| CN112642702B (en) * | 2021-01-05 | 2021-09-24 | 中国矿业大学 | High-efficient double-deck multistage shale shaker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201431961Y (en) | Variable-elliptic-orbit equal-thickness vibrating screen | |
| CN104624488A (en) | Linear flip-flow screen | |
| CN203265047U (en) | Novel elliptic-orbit vibrating sieve bend | |
| CN101890405B (en) | Variable ellipticorbit equal-thickness vibrating screen | |
| CN103658022A (en) | Banana tension and relaxation screen without girder | |
| CN107470136A (en) | One kind becomes amplitude equal thick screen | |
| CN106944335A (en) | A kind of straight line uniform thickness separating sieve | |
| CN102091690B (en) | Four-shaft forced synchronization variable linear uniform-thickness vibrating screen and screening method thereof | |
| CN201055845Y (en) | Double-vibration source vibrating screen | |
| CN201711281U (en) | High-frequency oval fine vibrating screen | |
| CN201855803U (en) | Four-shaft compulsively-synchronous variable-linear uniform-thickness vibrating screen | |
| CN206746998U (en) | A kind of double mass dither screening machine | |
| CN206746989U (en) | A kind of Double shaft self synchronous elliptically vibrating screen | |
| CN209613511U (en) | A kind of low-noise vibration screen for screening of aggregate | |
| CN101658840B (en) | Mobile trommel sieve | |
| CN205199701U (en) | Powder coating rubbing crusher jigging conveyer | |
| CN101934270A (en) | Vibrating screen | |
| CN202803575U (en) | Hydraulic high-frequency vibration sieve | |
| CN205128383U (en) | Novel vibrating screen | |
| CN215465988U (en) | Four-shaft linkage large circular vibrating screen | |
| CN101391251A (en) | Uniaxle excitation elliptical vibrating screen | |
| CN201510986U (en) | Movable trammel screen | |
| CN202655233U (en) | Planar revolving vibration sieve with position-adjustable vibration exciter | |
| CN201337983Y (en) | High-frequency translational sieve | |
| CN206382196U (en) | A kind of straight line uniform thickness separating sieve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100331 Effective date of abandoning: 20090520 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20100331 Effective date of abandoning: 20090520 |
|
| RGAV | Abandon patent right to avoid regrant |