CN109225827A - A kind of multiaxis driving forced vibration flip flop screen - Google Patents
A kind of multiaxis driving forced vibration flip flop screen Download PDFInfo
- Publication number
- CN109225827A CN109225827A CN201811203870.3A CN201811203870A CN109225827A CN 109225827 A CN109225827 A CN 109225827A CN 201811203870 A CN201811203870 A CN 201811203870A CN 109225827 A CN109225827 A CN 109225827A
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- China
- Prior art keywords
- screen
- sieve plate
- screen frame
- floating
- shaft
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a kind of multiaxises to drive forced vibration flip flop screen, it includes screen box and multiple driving devices, the screen box includes screen frame, sieve plate, multiple fixed beams and multiple floating beams, on the basis of the screen frame is fixed on, the sieve plate is located in screen frame, multiple fixed beams and multiple floating beams are parallel to each other and are alternatively arranged along the lower surface of sieve plate, the middle part of each fixed beam is connect with sieve plate, both ends are separately fixed in the two side walls of screen frame, the middle part of each floating beam is connect with sieve plate, both ends are connect by torsional mode elastic parts with screen frame side wall after being each passed through the through-hole in the two side walls of screen frame, each floating beam connects a driving device.The present invention only has floating beam to generate vibration under the driving of independent driving device, mass of vibration greatly reduces, it not only contributes to energy-saving and extends screen box service life, and floating beam will not be crushed to death, screen(ing) machine runs relatively reliable property, the adjusting of amplitude and frequency is more convenient, to improve the screening effect of material.
Description
Technical field
The present invention relates to a kind of coal separation flip flop screen, especially a kind of multiaxis driving flip-flow screen of adaptive feeding,
Belong to screening plant technical field.
Background technique
Flip flop screen is the novel screening plant currently used for wetted coal fines dry screening, is risen in developing clean coal technology
Important function.The screening of moist fine particulate viscous material is the hot and difficult issue of Now Domestic outer screening technical research, damp mass
Material mutually bonds agglomerating, and being adhered on sieve plate reduces effective sifting area, so that screening process be made to be difficult to complete.Flip flop screen is adopted
With polyurethane sieve plate, sieve plate itself does large deflection movement in use process, and sieve pore does stretched and relaxed flex motion always, this
Tension and relaxation movement can make sieve plate generate biggish spring acceleration, so that the moist fine particulate coal being attached on sieve pore is rubbed down
Come, efficiently solves the problems, such as that sieve pore is susceptible to plugging, substantially increase the screening efficiency of screen(ing) machine.
By retrieval, two patent documents all refer to segmentation adjustable flip flop screen: (1) Anhui University of Science and Technology below, a kind of
Flip flop screen segmented walking beam amplitude regulating device (China Patent No.: 201510431590.8);(2) China Mining University (north
Capital), it is segmented amplitude adjustable Banana Type flip flop screen (China Patent No.: 201520373659.1).These published segmentations can
Mode flip flop screen is all made of single drive mode, i.e. the fixed screen frame of motor driven does circular motion or linear motion, and floating screen frame is logical
It crosses shear spring to be connected on fixed screen frame, when excited frequency reaches second-order principal mode, fixed screen frame and floating screen frame are done
Incorgruous vibration drives Relaxation sieve-plate between the two to do tension and relaxation movement.But since its floating screen frame is extraneous vibration, work as feeding
Excessive or material cling sieve plate it is excessive when, floating beam can be crushed to death, and cause sieve plate that cannot do tension and relaxation movement, to influence to sieve
Divide effect.
Summary of the invention
It is an object of the invention to aiming at the disadvantages of the prior art, provide a kind of multiaxis driving forced vibration flip flop screen, with
Ensure the screening effect of flip flop screen.
In order to achieve the above objectives, the present invention adopts the following technical scheme:
A kind of multiaxis drives forced vibration flip flop screen, includes screen box and multiple driving devices in composition, the screen box include screen frame,
Sieve plate, multiple fixed beams and multiple floating beams, on the basis of the screen frame is fixed on, the sieve plate is located in screen frame, multiple fixations
Beam and multiple floating beams are parallel to each other and are alternatively arranged along the lower surface of sieve plate, and the middle part of each fixed beam is connect with sieve plate, and two
End is separately fixed in the two side walls of screen frame, and the middle part of each floating beam is connect with sieve plate, and both ends are each passed through the two of screen frame
It is connect by torsional mode elastic parts with screen frame side wall after through-hole on a side wall, each floating beam connects a driving device.
Above-mentioned multiaxis drives forced vibration flip flop screen, and each driving device includes connecting shaft, universal shaft, driving motor and two
A capacity eccentric bearing, the inner ring of two capacity eccentric bearings are fixedly connected with the both ends of connecting shaft respectively, outer ring by bearing block respectively with
The both ends of corresponding floating beam are fixedly connected, one end of the universal shaft with connect axis connection, the output of the other end and driving motor
Axis connection.
Above-mentioned multiaxis drives forced vibration flip flop screen, is equipped with thickness of feed layer video-frequency monitor above each floating beam,
The thickness of feed layer video-frequency monitor is fixed on screen frame, and the signal output end of thickness of feed layer video-frequency monitor connects corresponding driving dress
The controller set.
Above-mentioned multiaxis drives forced vibration flip flop screen, and the floating beam is tubulose, and the connecting bushing is in floating beam
Portion and with the inner wall of tubulose floating beam mutually from.
Above-mentioned multiaxis drives forced vibration flip flop screen, and the torsional mode elastic parts includes connecting rod and two elastic shafts,
Each elastic shaft includes square tube, square shaft and four cylindrical elastomer bodies, and the square shaft coaxial package is inside square tube and the side of square shaft
Angle between face and the side wall of square tube is 45 °, and four gaps between side and square tube of square shaft are respectively by four cylinder bullets
Property body filling, connection, the fixed company of the square shaft and screen frame of an elastic shaft are fixed by the connecting rod between the square tube of two elastic shafts
It connects, the square shaft of another elastic shaft is fixedly connected with the bearing block of floating beam or capacity eccentric bearing.
Above-mentioned multiaxis drives forced vibration flip flop screen, and the sieve plate is spliced by the sub- sieve plate of multiple polyurethane, Mei Geju
The both ends of the sub- sieve plate of urethane are connect with two adjacent fixed beams and floating beam respectively.
On the basis of screen frame of the invention is directly anchored to, only floating beam generates vibration under the driving of independent driving device
Dynamic, mass of vibration greatly reduces, and not only contributes to energy-saving and extends screen box service life, and floating beam will not be pressed
Extremely, screen(ing) machine runs relatively reliable property, and the adjusting of amplitude and frequency is more convenient, to improve the screening effect of material.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the structural diagram of the present invention;
Fig. 2 is sectional view of the invention;
Fig. 3 is flip flop screen top view;
Fig. 4 is the connection schematic diagram (A-A cross-sectional view) of floating beam and screen box;
Fig. 5 is torsional mode elastic parts schematic diagram;
Fig. 6 is the left view of Fig. 5.
Each label in figure are as follows: 1, screen box, 2, basis, 3, fixed beam, 4, floating beam, 5, torsional mode elastic parts, 6, bearing
Seat, 7, capacity eccentric bearing, 8, connecting shaft, 9, square tube, 10, cylindrical elastomer body, 11, square shaft, 12, sieve plate, 13, screen frame, 14, universal
Axis, 15, driving motor, 16, elastic shaft, 17, connecting rod, 18, driving device.
Specific embodiment
The present invention provides a kind of adaptive feeding multiaxis driving flip-flow screens.Compared with the prior art, in screen box knot
In terms of structure, on the basis of the screen frame of this flip flop screen acts directly on, screen frame and fixed beam do not participate in vibration, with fixed beam interval cloth
The floating beam set generates vibration, reduces mass of vibration, is beneficial to energy conservation consumption reduction and increases the service life of screen box;In drive form side
Face, each floating beam of the invention all pass through motor and transmission device positive drive, realize the movement of sieve plate tension and relaxation, and existing
Driving method is compared, and power is relatively reliable, it is more convenient to adjust frequency, amplitude;In terms of adaptive feeding, the present invention passes through
Video-frequency monitor detects thickness of feed layer, when thickness of feed layer is more than limit value, will issue instruction, enable floating beam working frequency more
Height solves material accumulation, and every floating beam has different monitors to control respectively, guarantees each floating beam by respectively different thickness
Worked with different frequency, guarantee every piece of sub- sieve plate can efficient operation, improve the screening efficiency of material.
Referring to FIG. 1 to FIG. 4, the present invention includes screen box 1, basis 2 and driving device 18, wherein screen box 1 include screen frame 13,
Sieve plate 12, torsional mode elastic parts 5, fixed beam 3 and floating beam 4, driving device 18 include bearing block 6, capacity eccentric bearing 7, connection
Axis 8, universal shaft 14 and driving motor 15.Screen frame 13 is directly anchored on basis 2, and the both ends of fixed beam 3 are separately fixed at screen frame
In 13 two side walls, the both ends of floating beam 4 are separately mounted on two bearing blocks 6 after passing through the square hole on 13 side wall of screen frame,
Bearing block 6 is suspended on screen frame 13 that (torsional mode elastic parts 5 can also directly hang floating beam by torsional mode elastic parts 5
4).Connecting shaft 8 is included in inside floating beam 4, and has gap each other, and the end of connecting shaft 8 is connected to the inner ring of capacity eccentric bearing 7
On, bearing block 6 is connected on the outer ring of capacity eccentric bearing 7.
4 arranged for interval of multiple fixed beams 3 and multiple floating beams, sieve plate 12 are spliced by multiple sub- sieve plates, every height sieve
One end of plate is fixed in fixed beam 3, and the other end is fixed on floating beam 4.Sieve plate is driven to do when floating beam 4 vibrates stretched and relaxed
Tension and relaxation movement.
When flip flop screen is run, connecting shaft 8 drives 8 inner ring of capacity eccentric bearing to do circular motion, and outer ring is driven to do eccentric motion, outer ring
Bearing block 6, floating beam 4 is driven to do and vibrate, amplitude is adjusted by 7 eccentricity of capacity eccentric bearing.
Thickness of feed layer video-frequency monitor (being not drawn into figure) is mounted on inside screen box 1, and the driving force of floating beam 4 is not respectively by
Same thickness of feed layer monitor control will issue instruction, enable floating beam working frequency more when thickness of feed layer is more than limit value
Height, i.e., each floating beam are worked according to respectively different material thickness with different frequencies, guarantee every piece of sieve plate can efficient operation,
To solve the problems, such as material accumulation, screening efficiency is improved.
Referring to Fig. 5 and Fig. 6, torsional mode elastic parts is made of connecting rod 17 and two elastic shafts 16, each elastic shaft 16
It is made of square tube 9, square shaft 11 and four cylindrical elastomer bodies 10.The maximum twist angle that two square shafts 11 allow is 30 ゜, has pole
High elasticity and the absorption function to vibration, swing.
Claims (6)
1. a kind of multiaxis drives forced vibration flip flop screen, which is characterized in that include screen box (1) and multiple driving devices in composition
(18), the screen box (1) includes screen frame (13), sieve plate (12), multiple fixed beams (3) and multiple floating beams (4), the screen frame
(13) it is fixed on basic (2), the sieve plate (12) is located in screen frame (13), multiple fixed beams (3) and multiple floating beams (4) phase
Mutually parallel and be alternatively arranged along the lower surface of sieve plate (12), the middle part of each fixed beam (3) is connect with sieve plate (12), and both ends are distinguished
It is fixed in the two side walls of screen frame (13), the middle part of each floating beam (4) is connect with sieve plate (12), and both ends are each passed through screen frame
(13) it is connect by torsional mode elastic parts (5) with screen frame (13) side wall after the through-hole in two side walls, each floating beam (4)
Connect a driving device (18).
2. multiaxis according to claim 1 drives forced vibration flip flop screen, which is characterized in that each driving device (18) packet
Include connecting shaft (8), universal shaft (14), driving motor (15) and two capacity eccentric bearings (7), the inner ring point of two capacity eccentric bearings (7)
It is not fixedly connected with the both ends of connecting shaft (8), outer ring is fixed with the both ends of corresponding floating beam (4) respectively by bearing block (6) to be connected
It connects, one end of the universal shaft (14) is connect with connecting shaft (8), the output axis connection of the other end and driving motor (15).
3. multiaxis according to claim 1 or 2 drives forced vibration flip flop screen, which is characterized in that each floating beam (4)
Top is equipped with thickness of feed layer video-frequency monitor, and the thickness of feed layer video-frequency monitor is fixed on screen frame (13), thickness of feed layer
The signal output end of video-frequency monitor connects the controller of corresponding driving device (18).
4. multiaxis according to claim 3 drives forced vibration flip flop screen, which is characterized in that the floating beam (4) is pipe
Shape, the connecting shaft (8) be sleeved on floating beam (4) it is internal and with the inner wall of tubulose floating beam (4) mutually from.
5. multiaxis according to claim 4 drives forced vibration flip flop screen, which is characterized in that the torsional mode elastic parts
It (5) include connecting rod (17) and two elastic shafts (16), each elastic shaft (16) includes square tube (9), square shaft (11) and four circles
Column elastomer (10), square shaft (11) coaxial package is in square tube (9) inside and the side of square shaft (11) and the side wall of square tube (9)
Between angle be 45 °, the gap between four sides and square tube (9) of square shaft (11) is respectively by four cylindrical elastomer bodies (10)
It fills, is fixedly connected between the square tube (9) of two elastic shafts (16) by connecting rod (17), the square shaft of an elastic shaft (16)
(11) it is fixedly connected with screen frame (13), the square shaft (11) and the axis of floating beam (4) or capacity eccentric bearing (7) of another elastic shaft (16)
Seat (6) is held to be fixedly connected.
6. multiaxis according to claim 5 drives forced vibration flip flop screen, which is characterized in that the sieve plate (12) is by multiple
The sub- sieve plate of polyurethane is spliced, the both ends of each sub- sieve plate of polyurethane respectively with two adjacent fixed beams (3) and floating beam
(4) it connects.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201811203870.3A CN109225827A (en) | 2018-10-16 | 2018-10-16 | A kind of multiaxis driving forced vibration flip flop screen |
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CN201811203870.3A CN109225827A (en) | 2018-10-16 | 2018-10-16 | A kind of multiaxis driving forced vibration flip flop screen |
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ID=65053660
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CN201811203870.3A Withdrawn CN109225827A (en) | 2018-10-16 | 2018-10-16 | A kind of multiaxis driving forced vibration flip flop screen |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110152990A (en) * | 2019-06-13 | 2019-08-23 | 东北农业大学 | A stepped flexible grain cleaning mechanism imitating the movement characteristics of earthworms |
CN112691903A (en) * | 2021-01-29 | 2021-04-23 | 鞍山市长和冶金设备制造有限公司 | Plug-in mounting assembly for rolling screen surface |
CN113176173A (en) * | 2021-04-26 | 2021-07-27 | 中国矿业大学(北京) | Screening experimental device and experimental system |
CN114535072A (en) * | 2022-03-30 | 2022-05-27 | 湖南蓬源鸿达矿业有限公司 | Shale shaker gives ore device based on many sensing technologies |
CN115178462B (en) * | 2022-07-08 | 2023-09-19 | 安徽理工大学 | Four-degree-of-freedom relaxation screening test bed |
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SU1256810A1 (en) * | 1985-03-01 | 1986-09-15 | Всесоюзный Ордена Трудового Красного Знамени Научно-Исследовательский И Проектный Институт Механической Обработки Полезных Ископаемых "Механобр" | Hydraulic screen |
CN1511648A (en) * | 2002-12-30 | 2004-07-14 | 刚 孙 | Reinforced sieve |
CN202632097U (en) * | 2012-06-01 | 2012-12-26 | 山东博润工业技术股份有限公司 | Online monitoring system of flip-flow screen |
CN103221149A (en) * | 2010-05-24 | 2013-07-24 | 国民油井华高有限合伙公司 | Magnetic vibratory screen clamping |
CN105195412A (en) * | 2015-11-06 | 2015-12-30 | 中国矿业大学(北京) | Floating frame driving type flip-flop screen |
CN107314878A (en) * | 2017-06-29 | 2017-11-03 | 太原理工大学 | A kind of inertia flip flop screen experimental bench |
CN207025822U (en) * | 2017-07-31 | 2018-02-23 | 塞尔姆(北京)科技有限责任公司 | A kind of double-deck heavy high frequency micro powder screen |
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2018
- 2018-10-16 CN CN201811203870.3A patent/CN109225827A/en not_active Withdrawn
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
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SU1256810A1 (en) * | 1985-03-01 | 1986-09-15 | Всесоюзный Ордена Трудового Красного Знамени Научно-Исследовательский И Проектный Институт Механической Обработки Полезных Ископаемых "Механобр" | Hydraulic screen |
CN1511648A (en) * | 2002-12-30 | 2004-07-14 | 刚 孙 | Reinforced sieve |
CN103221149A (en) * | 2010-05-24 | 2013-07-24 | 国民油井华高有限合伙公司 | Magnetic vibratory screen clamping |
CN202632097U (en) * | 2012-06-01 | 2012-12-26 | 山东博润工业技术股份有限公司 | Online monitoring system of flip-flow screen |
CN105195412A (en) * | 2015-11-06 | 2015-12-30 | 中国矿业大学(北京) | Floating frame driving type flip-flop screen |
CN107314878A (en) * | 2017-06-29 | 2017-11-03 | 太原理工大学 | A kind of inertia flip flop screen experimental bench |
CN207025822U (en) * | 2017-07-31 | 2018-02-23 | 塞尔姆(北京)科技有限责任公司 | A kind of double-deck heavy high frequency micro powder screen |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110152990A (en) * | 2019-06-13 | 2019-08-23 | 东北农业大学 | A stepped flexible grain cleaning mechanism imitating the movement characteristics of earthworms |
CN112691903A (en) * | 2021-01-29 | 2021-04-23 | 鞍山市长和冶金设备制造有限公司 | Plug-in mounting assembly for rolling screen surface |
CN113176173A (en) * | 2021-04-26 | 2021-07-27 | 中国矿业大学(北京) | Screening experimental device and experimental system |
CN114535072A (en) * | 2022-03-30 | 2022-05-27 | 湖南蓬源鸿达矿业有限公司 | Shale shaker gives ore device based on many sensing technologies |
CN115178462B (en) * | 2022-07-08 | 2023-09-19 | 安徽理工大学 | Four-degree-of-freedom relaxation screening test bed |
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