CN203044328U - Flip-flop screen - Google Patents
Flip-flop screen Download PDFInfo
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- CN203044328U CN203044328U CN 201320037564 CN201320037564U CN203044328U CN 203044328 U CN203044328 U CN 203044328U CN 201320037564 CN201320037564 CN 201320037564 CN 201320037564 U CN201320037564 U CN 201320037564U CN 203044328 U CN203044328 U CN 203044328U
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- plate
- sieve
- screen
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Abstract
The utility model belongs to the field of material screening devices and particularly relates to a flip-flop screen. The flip-flop screen comprises a main screen basket which comprises a left side plate and a right side plate, fixed beams are evenly distributed between the left side plate and the right side plate, a floating beam is arranged between each two adjacent fixed beams, the two ends of each floating beam are both fixed on balance square pipes, the balance square pipes are connected with the left side plate and the right side plate through resonant springs, a screen plate is arranged between a fixed beam and a floating beam which are adjacent, the outer wall of the left side plate and the outer wall of the right side plate are both connected with supports, eccentric vibration exciters are respectively connected with the two side plates, and the two eccentric vibration exciters are connected through a main shaft, wherein one eccentric vibration exciter is connected with a driving device through a universal coupler, and the driving device is installed on the supports. The flip-flop screen can effectively solve the problem of low screening efficiency caused by screen blocking, paste sticking on the screen and the like in the material screening process, and is an effective screening device for screening damp thin-grain materials in a dry mode, especially under the condition that the materials to be processed easily block screen meshes.
Description
Technical field
The utility model relates to a kind of flip flop screen, belongs to the Supplying Sieving Mechanism field.
Background technology
The vibratory sieve of prior art is to pass through motor-driven, and by two vibrators of forming that has uneven weight, two axles are done the reverse sync revolution, and the centrifugal force that produces vibrates screen box, and the vibration of screen box drives that material on the compass screen surface vibrates and the purpose that reaches sieve.According to the relative position difference of unbalanced weight on axle, the track of screen box vibration can be straight line or oval two kinds of forms.This vibratory sieve adopts large amplitude, high oscillation intensity to realize screening, particularly content height, the granularity of moist fine particulate particle is little in material, specific area is big, add under the situation of existence of compositions such as free moisture and clay, the moist fine particulate particle bonds agglomerating mutually, be attached to easily and stop up sieve aperture on the compass screen surface, thereby make stability and the poor reliability of equipment, fracture takes place and waits other accidents in structures such as sieve beam easily, and device context uses noise big; Large amplitude and high oscillation intensity need powerful motor, and power consumption is high; Simultaneously, material sieves easy network blocking when water content is bigger, and screening efficiency is low.
The utility model content
The technical problems to be solved in the utility model is: a kind of compact conformation is provided, effectively avoids material to stop up sieve aperture, can improve the flip flop screen of screening effect and screening efficiency.
The utility model is that the technical scheme that its technical problem of solution adopts is: described flip flop screen, comprise main sieve basket, main sieve basket comprises left plate and right plate, be evenly distributed with fixed cross beam between left plate and the right plate, unsteady crossbeam is set between the adjacent fixed crossbeam, the two ends of unsteady crossbeam all are fixed on the balance square tube, balance square tube and a left side, all connect by resonant springs between the right plate, mounted sieve between adjacent fixed crossbeam and the unsteady crossbeam, a left side, all connect support on the right plate outer wall, eccentric activator places the biside plate outside respectively, two eccentric activators are connected by main shaft, wherein an eccentric activator connects drive unit by Hooks coupling universal coupling, and drive unit is rack-mount.
Eccentric activator drives main sieve basket and vibrates, and main sieve basket makes the balance square tube drive unsteady crossbeam by resonant springs and realizes secondary vibration; Sieve plate can be selected polyurethane sieve plate for use, and polyurethane sieve plate is installed between fixed cross beam and the unsteady crossbeam, thereby makes polyurethane sieve plate produce the tension and relaxation motion, and the material on the sieve plate produces " trampoline effect "; Go into to sieve material coarse granule material and fine granular materials generation layering under the tension and relaxation motion, fine granular materials is easy to sieve near compass screen surface; The agglomerating particle of bonding scatter under " trampoline effect " of sieve plate in the material, and polyurethane sieve plate has self-cleaning function; Water content is not more than under 14% the situation outside, after raw coal falls on the compass screen surface, under the tension and relaxation effect of sieve plate, because the characteristic of the material of polyurethane sieve plate own, raw coal is effectively upspring disperse, and material is disperseed, and realizes effectively screening.
Described fixed cross beam and unsteady crossbeam top all are equipped with the sieve plate contiguous block by bolt, and sieve plate contiguous block top arranges draw-in groove, and the sieve plate two ends arrange the sieve plate leg respectively, and the sieve plate leg is separately fixed in the draw-in groove.The sieve plate contiguous block can adopt the polyurethane of high rigidity to make, and can fix by bolt with fixed cross beam and unsteady crossbeam respectively; The sieve plate leg may be stuck in the draw-in groove on the sieve plate contiguous block and fixes, this kind connected mode, and easy installation and removal, replacing speed is fast.
Described resonant springs is the rubber shear spring, between left and right side plate outer wall and the support spring support is set respectively, and damping spring is installed on the spring support, is evenly distributed with guide spring respectively between biside plate and the balance square tube.By increasing or reduce the quantity of rubber shear spring, can regulate the amplitude of flip flop screen, easy to use; The vibration of main sieve basket cushions through damping spring, has reduced the impact to ground; Guide spring can be selected a kind of epoxy composite material that solidifies based on parallel fine rule structure for use, fatigue resistance and high adaptability to changes with high-quality, when assurance makes length displacement difference on producing the logistics direction of fixed cross beam and unsteady crossbeam, the correctness of width relative position.
Described eccentric activator is made up of two fan-shaped steel plates, radially is evenly distributed with screwed hole on the fan-shaped steel plate, is threaded between two fan-shaped steel plates, and two fan-shaped steel plates are connected with Hooks coupling universal coupling.Two fan-shaped steel plates are installed on the Hooks coupling universal coupling, adopt conventional mounting means to get final product, the convenient installation; Just can realize the adjustment of exciting force size by the relative position of adjusting two fan-shaped steel plates, thereby adjust the amplitude size of flip flop screen, during use, can be according to parameters such as the size data of material, water content, select suitable amplitude, make material screening have than higher screening efficiency.
Described left plate and right plate top are provided with the dust cover support, and the dust cover support is provided with dust cover.The dust cover support is fixed on the top of main sieve basket, can increase the intensity of main sieve basket, is used for supporting dust cover.
The beneficial effects of the utility model are:
Flip flop screen can effectively solve the stifled sieve that occurs in the material screening process, stick with paste sieve etc. causes the low problem of screening efficiency, is the effective screening plant of moist fine particulate material dry screening.Especially be easy to stop up under the situation of screen cloth at handled material, flip flop screen can use low power motor to solve the phenomenon that moist material is united in screening process, reaches high screening efficiency with less relatively screen area, guarantees that screen cloth does not stop up.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the plan structure schematic diagram of Fig. 1.
Fig. 3 is the structure enlarged diagram of A part among Fig. 1.
Fig. 4 is the structural representation of eccentric activator.
Fig. 5 is the structural representation of fixed cross beam and unsteady crossbeam.
Among the figure: 1, right plate 2, unsteady crossbeam 3, sieve plate 4, fixed cross beam 5, balance square tube 6, eccentric activator 7, resonant springs 8, damping spring 9, guide spring 10, dust cover 11, support 12, left plate 13, motor 14, Hooks coupling universal coupling 15, sieve plate leg 16, sieve plate contiguous block 17, bolt 18, fan-shaped steel plate 19, screwed hole A 20, screwed hole B 21, spring support.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further:
As Fig. 1～shown in Figure 5, flip flop screen described in the utility model, comprise main sieve basket, main sieve basket comprises left plate 12 and right plate 1, be evenly distributed with fixed cross beam 4 between left plate 12 and the right plate 1, the crossbeam 2 that floats is set between the adjacent fixed crossbeam 4, the two ends of unsteady crossbeam 2 all are fixed on the balance square tube 5, balance square tube 5 and a left side, all connect by resonant springs 7 between the right plate, mounted sieve 3 between adjacent fixed crossbeam 4 and the unsteady crossbeam 2, a left side, all connect support 11 on the right plate outer wall, and connect eccentric activator 6, two eccentric activators 6 on the biside plate respectively and be connected by main shaft, wherein an eccentric activator 6 connects drive units by Hooks coupling universal coupling 14, drive unit is motor 13, and motor 13 is installed on the support 11.Fixed cross beam 4 all has screwed hole B20 with unsteady crossbeam 2 tops, and is connected with sieve plate contiguous block 16 by bolt 17, and sieve plate contiguous block 16 tops arrange draw-in groove, and sieve plate 3 two ends arrange sieve plate leg 15 respectively, and sieve plate leg 15 is separately fixed in the draw-in groove.Resonant springs 7 is the rubber shear spring, between left and right side plate outer wall and the support 11 spring support 21 is set respectively, and damping spring 8 is installed on the spring support 21, is evenly distributed with guide spring 9 respectively between biside plate and the balance square tube 5.Eccentric activator 6 is made up of two fan-shaped steel plates 18, radially is evenly distributed with screwed hole A19 on the fan-shaped steel plate 18, is threaded between two fan-shaped steel plates 18, and two fan-shaped steel plates 18 are connected with Hooks coupling universal coupling 14.Left plate 12 is provided with the dust cover support with right plate 1 top, and the dust cover support is provided with dust cover 10, and fixed cross beam 4 is identical with the structure of unsteady crossbeam 2.
During work, starter motor 13, the eccentric activator 6 that motor 13 drives on the biside plate by Hooks coupling universal coupling 14, eccentric activator 6 drive the vibration of main sieve basket, and main sieve basket makes the crossbeam 2 that floats realize secondary vibration by resonant springs 7.The two ends of sieve plate 3 are installed in respectively between fixed cross beam 4 and the unsteady crossbeam 2, main sieve basket drives balance square tube 5 and 2 vibrations of unsteady crossbeam by resonant springs 7, thereby make fixed cross beam 4 and unsteady crossbeam 2 produce " displacement difference ", make sieve plate 3 produce the tension and relaxation motion, material on the sieve plate 3 produces " trampoline effect ", go into to sieve material coarse granule material and fine granular materials generation layering under the tension and relaxation motion, fine granular materials is easy to sieve near compass screen surface.The agglomerating particle of bonding scatter under " trampoline effect " of sieve plate 3 in the material, sieve plate 3 is selected polyurethane sieve plate for use, self-cleaning function is arranged, water content is not more than under 14% the situation, after raw coal falls on the compass screen surface, under the flip flop screen effect of sieve plate 3 outside, again because the characteristic of the material of polyurethane sieve plate own, raw coal effectively upspring disperse, material is disperseed, realize effectively screening.
Claims (5)
1. flip flop screen, it is characterized in that: comprise main sieve basket, main sieve basket comprises left plate (12) and right plate (1), be evenly distributed with fixed cross beam (4) between left plate (12) and the right plate (1), unsteady crossbeam (2) is set between the adjacent fixed crossbeam (4), the two ends of unsteady crossbeam (2) all are fixed on the balance square tube (5), balance square tube (5) and a left side, all connect by resonant springs (7) between the right plate, mounted sieve (3) between adjacent fixed crossbeam (4) and the unsteady crossbeam (2), a left side, all connect support (11) on the right plate outer wall, eccentric activator (6) places the biside plate outside respectively, two eccentric activators (6) are connected by main shaft, wherein an eccentric activator (6) connects drive unit by Hooks coupling universal coupling (14), and drive unit is installed on the support (11).
2. flip flop screen according to claim 1, it is characterized in that: fixed cross beam (4) all is equipped with sieve plate contiguous block (16) by bolt (17) with unsteady crossbeam (2) top, sieve plate contiguous block (16) top arranges draw-in groove, sieve plate (3) two ends arrange sieve plate leg (15) respectively, and sieve plate leg (15) is separately fixed in the draw-in groove.
3. flip flop screen according to claim 1 and 2, it is characterized in that: resonant springs (7) is the rubber shear spring, between left and right side plate outer wall and the support (11) spring support (21) is set respectively, spring support (21) is gone up damping spring (8) is installed, and is evenly distributed with guide spring (9) respectively between biside plate and the balance square tube (5).
4. flip flop screen according to claim 3, it is characterized in that: eccentric activator (6) is made up of two fan-shaped steel plates (18), fan-shaped steel plate radially is evenly distributed with screwed hole on (18), two fan-shaped steel plates are threaded between (18), and two fan-shaped steel plates (18) are connected with Hooks coupling universal coupling (14).
5. according to claim 1,2 or 4 described flip flop screens, it is characterized in that: left plate (12) is provided with the dust cover support with right plate (1) top, and the dust cover support is provided with dust cover (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320037564 CN203044328U (en) | 2013-01-23 | 2013-01-23 | Flip-flop screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320037564 CN203044328U (en) | 2013-01-23 | 2013-01-23 | Flip-flop screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203044328U true CN203044328U (en) | 2013-07-10 |
Family
ID=48727326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320037564 Ceased CN203044328U (en) | 2013-01-23 | 2013-01-23 | Flip-flop screen |
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| Country | Link |
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| CN (1) | CN203044328U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658022A (en) * | 2013-12-20 | 2014-03-26 | 伯特利（天津）工业设备有限公司 | Banana tension and relaxation screen without girder |
| CN103658025A (en) * | 2013-12-24 | 2014-03-26 | 伯特利（天津）工业设备有限公司 | Composite tension and relaxation sieve |
| CN105195412A (en) * | 2015-11-06 | 2015-12-30 | 中国矿业大学(北京) | Floating frame driving type flip-flop screen |
| CN108816741A (en) * | 2018-08-03 | 2018-11-16 | 鞍山重型矿山机器股份有限公司 | Exciting force is oriented parallel to the flip flop screen of compass screen surface |
| CN109092673A (en) * | 2018-09-11 | 2018-12-28 | 天地（唐山）矿业科技有限公司 | A kind of embedded flip flop screen of double drive |
| CN111889366A (en) * | 2020-07-29 | 2020-11-06 | 中煤科工集团唐山研究院有限公司 | Assembly method of flip-flow screen |
| CN115625112A (en) * | 2022-09-08 | 2023-01-20 | 塞尔姆（北京）科技有限责任公司 | Anticorrosive flexible sieve plate bracket and large-scale wet process micro powder sieve |
-
2013
- 2013-01-23 CN CN 201320037564 patent/CN203044328U/en not_active Ceased
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658022A (en) * | 2013-12-20 | 2014-03-26 | 伯特利（天津）工业设备有限公司 | Banana tension and relaxation screen without girder |
| CN103658022B (en) * | 2013-12-20 | 2016-01-27 | 伯特利（天津）工业设备有限公司 | Without girder banana flip flop screen |
| CN103658025A (en) * | 2013-12-24 | 2014-03-26 | 伯特利（天津）工业设备有限公司 | Composite tension and relaxation sieve |
| CN105195412A (en) * | 2015-11-06 | 2015-12-30 | 中国矿业大学(北京) | Floating frame driving type flip-flop screen |
| CN108816741A (en) * | 2018-08-03 | 2018-11-16 | 鞍山重型矿山机器股份有限公司 | Exciting force is oriented parallel to the flip flop screen of compass screen surface |
| CN109092673A (en) * | 2018-09-11 | 2018-12-28 | 天地（唐山）矿业科技有限公司 | A kind of embedded flip flop screen of double drive |
| CN111889366A (en) * | 2020-07-29 | 2020-11-06 | 中煤科工集团唐山研究院有限公司 | Assembly method of flip-flow screen |
| CN115625112A (en) * | 2022-09-08 | 2023-01-20 | 塞尔姆（北京）科技有限责任公司 | Anticorrosive flexible sieve plate bracket and large-scale wet process micro powder sieve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20150327 Decision number of declaring invalidation: 25510 Granted publication date: 20130710 |