CN104785438A - Tension and relaxation screen with straight-line oscillator arranged at feeding end - Google Patents
Tension and relaxation screen with straight-line oscillator arranged at feeding end Download PDFInfo
- Publication number
- CN104785438A CN104785438A CN201510235424.0A CN201510235424A CN104785438A CN 104785438 A CN104785438 A CN 104785438A CN 201510235424 A CN201510235424 A CN 201510235424A CN 104785438 A CN104785438 A CN 104785438A
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- CN
- China
- Prior art keywords
- screen
- cross beam
- feeding end
- side plate
- material feeding
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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
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- 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
- B07B1/46—Constructional details of screens in general; Cleaning or heating of 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
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
Abstract
The invention provides a tension and relaxation screen with a straight-line oscillator arranged at the feeding end, belongs to the sub-mechanical field of oscillating screens and solves the problems that existing tension and relaxation screens are prone to having meshes blocked off and insufficient in processing capacity. Lower cross beams of a screen frame are composed of movable cross beams and fixed cross beams which are arranged in an alternate mode; the fixed cross beams are connected with screen frame side plates; the movable cross beams pass through the screen frame side plates through connecting blocks and are connected with locating beams at the outer sides of the side plates, so that movable cross beam sets are formed; the upper side and the lower side of each locating beam are connected with guiding tracks located on the screen frame side plates through rubber shearing springs; one side of each piece of elastic screen net is installed onto the corresponding fixed cross beam, and the other side of the corresponding piece of elastic screen net is installed on the corresponding movable cross beam. The double-shaft straight-line oscillator is installed at the feeding end of a screen box through a trapezoid oscillator mounting beam; screen surface sealing plates are arranged between the side plates of the screen box and the elastic screen net. By means of the tension and relaxation screen, the effect for screening high-viscosity materials is improved, no mesh is blocked off, and high production capacity screening is achieved. The screen can be applied to efficient material screening in such industries as coal, mine, building material, urban garbage and waste water preliminary purification.
Description
Technical field
The invention belongs to vibration screening machinery field, mainly relate to box linear vibrator and be arranged on flip flop screen material feeding end, straight-line oscillation involves screen cloth and does tension and relaxation motion, and dry type screening is more containing mud, water or powder, and the linear vibrator that fine granularity glues loose difficult screened material is arranged on the flip flop screen of material feeding end.
Background technology
During circular vibration single crank connecting rod flip flop screen material screening, the motion that Flexible sieve is stretched and relaxed, makes material under the effect of screen cloth amplitude and elastic force, carries out contact wire side continuously, upspring loose and fall the motions such as sieve, completing the dry type high efficiency screening operation of the larger difficult screened material of viscosity.When in the mixed material being less than 50mm, when the content of 10-5mm is large, moisture accounts for about 10%, material very easily sticks on compass screen surface, and the screening efficiency that General Oscillation is sieved significantly reduces, and even impact is normal produces.Due to single shaft circular vibration device vibration force scarce capacity, on screen cloth, thickness of feed layer only can reach 40mm.Production capacity wretched insufficiency, become to restrict Mineral Processing Enterprises and improve the bottleneck of output.
Summary of the invention
The object of this invention is to provide the flip flop screen that a kind of linear vibrator is arranged on material feeding end, this flip flop screen is while elastic screen surface makes tension and relaxation motion screening materials carrying, whole screen box and compass screen surface also do straight-line oscillation with identical frequency, its screen-penetrating performance and screening efficiency have been had and improves significantly.
The present invention is achieved by the following measures, form primarily of screen frame, sill, Flexible sieve, vibrator, dust cap, resilient supporting unit and bracket upright post, screen frame is arranged on pillar by resilient supporting unit, vibrator is driven by transmission gear for electric motor, it is characterized in that: the sill of screen frame is made up of fixed cross beam and moved cross beam, moved cross beam setting alternate with fixed cross beam; Fixed cross beam is connected with screen frame side plate by ring-grooved rivet; The preformed hole on screen frame side plate is all passed by contiguous block in the two ends of each moved cross beam, is connected, forms a moved cross beam group in the outside of side plate with positioning beam; The both sides up and down of positioning beam are connected by the guide rail that rubber shear spring is upper and lower with being positioned at screen frame side plate preformed hole; The side of Flexible sieve is arranged on fixed cross beam, and opposite side is arranged on moved cross beam and forms compass screen surface; Biaxial linear vibrator is the material feeding end that trapezoidal vibrator mounting rail is arranged on screen box by cross section; In screen box, be provided with compass screen surface sealing plate between side plate and Flexible sieve, sealing plate is fixed on the side plate of screen box by sealing plate mounting framework.
The cross section of moved cross beam and fixed cross beam is wedge shape seamless steel pipe, connects the U-type groove steel of introversion above steel pipe.The installation of Flexible sieve is the U-type groove steel being provided with introversion on moved cross beam and fixed cross beam, and the crisperding of adjacent two tension and relaxation screen clothes is placed in U-type groove, inserts in the middle of two screen clothes fixing with trapezoidal spline.The Biaxial linear vibrator being positioned at screen box material feeding end is 1-3 group; The force action line of vibrator is parallel with flat face compass screen surface, or parallel with the string of arc surface compass screen surface two ends line.Dust cap above screen box is made up of the type steel skeleton be hung and the Thin rubber plate be arranged on skeleton, lateral seal is provided with round steel fixed strip on dust cap and sieve box side plate, high strength Thin rubber plate is connected on upper and lower round steel fixed strip with C type opening rubber clamp bar.In the outside of material feeding end sieve box side plate, the position up and down of vibrator mounting rail, be provided with the reinforcement increasing side plate intensity; On the upper edge of sieve box side plate, be vertically arranged with the reinforcement preventing side plate to be out of shape.Described compass screen surface is flat face compass screen surface or arc surface compass screen surface; The number of plies of compass screen surface is individual layer or bilayer; Screen angle is 15 ~ 25 °.Positioning beam in described moved cross beam group is straight on the flip flop screen of flat face compass screen surface, and the flip flop screen of arc surface compass screen surface is bending, curvature is identical with the curvature of arc surface compass screen surface.
The invention has the beneficial effects as follows, the positioning beam of moved cross beam group both sides is connected with the guide rail being fixed on sieve box side plate both sides by rubber shear spring.When being positioned at the linear vibrator work of screen box material feeding end, moved cross beam group, under the traction of screen box vibration force, overcomes the shearing force of shear spring, movement fast in the track of side guide.Namely vibrator moves back and forth and involves the motion of moved cross beam group synchronous reciprocating, and realize the vibration flip flop screen componental movement of tension and relaxation screen cloth, namely the amplitude of motion is moved cross beam group tension and relaxation amplitude.Solve the classification that 3-6mm fine granularity glues loose material, sieving area reaches width 3600mm, length 10000mm.Individual layer, double-deck flat face flip flop screen and individual layer, double-deck arc surface flip flop screen manufacture and design a difficult problem for vibration force scarce capacity.Screen cloth oscillation intensity truly can reach 50g, and thickness of feed layer can reach 150-200mm, and the not network blocking hole sizer of screening efficiency 95% divides.The material high-efficiency screening of the industries such as coal 3-6mm thermal coal, mine, building materials, municipal refuse and sewage primary purifying can be widely used in.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention, Fig. 2 is the A direction view of Fig. 1, Fig. 3 is B-B and the C-C sectional view of Fig. 1, left side is that B-B analyses and observe i.e. moved cross beam scheme of installation, right side is that C-C analyses and observe i.e. fixed cross beam scheme of installation, Fig. 4 is the enlarged drawing that the E portion fixed cross beam of Fig. 3 is installed, Fig. 5 is the enlarged drawing that the F portion moved cross beam of Fig. 3 is installed, Fig. 6 is the D portion enlarged drawing of Fig. 1, Fig. 7 is the installation partial enlarged drawing of shear spring and positioning beam, Fig. 8 is the enlarged drawing of the G portion soft seal of Fig. 3, Fig. 9 is that moved cross beam moves to right, screen cloth tensioning lastics schematic diagram on the left of it, Figure 10 is that moved cross beam is positioned at centre position, screen cloth relaxes schematic diagram, Figure 11 is that moved cross beam moves to left, screen cloth tensioning lastics schematic diagram on the right side of it.
In figure, 1 is screen frame, 2 is moved cross beam groups, 3 is shear springs, 4 is sealing plates, 5 is along reinforcement on side plate, 6 is side plate reinforcements, 7 is resilient supporting units, 8 is the trapezoidal mounting rails of vibrator, 9 is linear vibrator, 10 is transmission gear for electric motor pillars, 11 is dust caps, 12 is transmission gear for electric motor, 13 is sieve box side plates, 14 is fixed cross beams, 15 is moved cross beams, 16 is screen clothes, 17 is introversion U-type groove steel, 18 is contiguous blocks, 19 and 19a be side guide, 20 is stiffeners, 21 is connecting bolts, 22 is location channel-section steels, 23 is sealing plate mounting frameworks, 24 is trapezoidal splines, 25 is set bolts, 26 is soft seal rubber slabs, 27 is C type opening rubber clamp bars, 28 is round steel fixed strips, 29 is Thin rubber plate, 30 is press strips, 31 is skeletons, α is screen angle, curved arrow in Fig. 9 and Figure 11 is the track signal that on screen cloth, material is upspring.
Detailed description of the invention
Below in conjunction with accompanying drawing, one embodiment of the present of invention are described, primarily of the double-deck arc surface screen cloth flip flop screen of screen frame, sill, Flexible sieve, vibrator, dust cap, resilient supporting unit and bracket upright post composition.Screen frame 1 is arranged on pillar by resilient supporting unit 7, and vibrator 9 is driven by transmission gear for electric motor 12.The sill of screen frame 1 is made up of fixed cross beam 14 and moved cross beam 15, moved cross beam setting alternate with fixed cross beam; Fixed cross beam 14 is connected with screen frame side plate 13 by ring-grooved rivet; The preformed hole on screen frame side plate is all passed at the two ends of each moved cross beam 15 by contiguous block 18, be connected, form a moved cross beam group 2 in the outside of side plate 13 with location channel-section steel 22 and stiffener 20; The both sides up and down of location channel-section steel 22 are connected by the side guide 19 that rubber shear spring 3 is upper and lower with being positioned at screen frame side plate preformed hole; The side of Flexible sieve 16 is arranged on fixed cross beam 14, and opposite side is arranged on moved cross beam 15 and forms compass screen surface; Biaxial linear vibrator 9 is the material feeding end that trapezoidal vibrator mounting rail 8 is arranged on screen box by cross section; In screen box, be provided with compass screen surface sealing plate 4 between side plate 13 and Flexible sieve 16, sealing plate is fixed on the side plate 13 of screen box by sealing plate mounting framework 23.1mm gap is left on the every limit of sealing plate and Flexible sieve two ends.
The cross section of moved cross beam 15 and fixed cross beam 14 is wedge shape seamless steel pipe, connects the U-type groove steel 17 of introversion above steel pipe.The installation of Flexible sieve 16 is the U-type groove steel 17 being provided with introversion on moved cross beam 15 and fixed cross beam 14, and the crisperding of adjacent two tension and relaxation screen clothes is placed in U-type groove, inserts in the middle of two screen clothes fixing with trapezoidal spline 24.The Biaxial linear vibrator 9 being positioned at screen box material feeding end is two groups; The force action line of vibrator is parallel with the string of arc surface compass screen surface two ends line.Dust cap 11 above screen box is made up of the type steel skeleton be hung and the Thin rubber plate 29 be arranged on skeleton 31, lateral seal is provided with round steel fixed strip 28 on dust cap 11 and sieve box side plate 13, high strength Thin rubber plate 26 is connected on upper and lower round steel fixed strip 28 with C type opening rubber clamp bar 27.In the outside of material feeding end sieve box side plate, the position up and down of vibrator mounting rail, be provided with the reinforcement 6 increasing side plate intensity; On the upper edge of sieve box side plate, be vertically arranged with the reinforcement 5 preventing side plate to be out of shape.Described compass screen surface is double-deck arc surface compass screen surface, and screen angle α is 20 °.Location channel-section steel 22 in described moved cross beam group, the flip flop screen of arc surface compass screen surface is bending, curvature is identical with the curvature of arc surface compass screen surface.
Two group chamber type linear vibrator are arranged on screen box material feeding end, the moved cross beam group that in a flip flop screen casing, inner sleeve one group can move forward and backward, moved cross beam group is sleeved in the middle of screen box fixed cross beam group, the upper and lower guide rail done by angle steel of screen box both sides is placed in the upper and lower of moved cross beam group, and rubber shear spring connects the positioning beam that side guide and moved cross beam group are done by channel-section steel and stiffener respectively.Form rubber shear spring with material feeding end linear vibrator to lead tension and relaxation motion.The exciting force transport motion that box linear vibrator produces, drives the interval movable screen cloth crossbeam group be arranged in the middle of fixed grit crossbeam group to overcome shear spring resistance and produces slide anteroposterior amplitude, interval Zhang Ping, lax screen cloth.Eccentric adjustment block eccentric mass (or eccentric block angle) can reach required amplitude.Oscillation intensity 30-50g is adjustable, make the screen cloth of elongation, is changed, prevents the generation of plug-hole phenomenon, improve the screening effect to high-viscosity material by the trace of mesh.Realize without plug-hole, high productive capacity screening.
Claims (8)
1. a linear vibrator is arranged on the flip flop screen of material feeding end, form primarily of screen frame, sill, Flexible sieve, vibrator, dust cap, resilient supporting unit and bracket upright post, screen frame is arranged on pillar by resilient supporting unit, and vibrator is driven by transmission gear for electric motor, it is characterized in that:
(15) (14) screen frame sill be (1) made up of with moved cross beam fixed cross beam, moved cross beam setting alternate with fixed cross beam; (13) (14) fixed cross beam be connected with screen frame side plate by ring-grooved rivet; The preformed hole on screen frame side plate is all passed in each moved cross beam two ends (15) (18) by contiguous block, be connected, form a moved cross beam group (2) in side plate outside (13) with positioning beam (22); (19) the guide rail that the both sides up and down of positioning beam (22) are (3) upper and lower with being positioned at screen frame side plate preformed hole by rubber shear spring is connected; Flexible sieve side is (16) arranged on fixed cross beam and (14) goes up, opposite side be arranged on moved cross beam (15) on form compass screen surface;
(9) Biaxial linear vibrator is the material feeding end that (8) trapezoidal vibrator mounting rail is arranged on screen box by cross section;
In screen box, side plate (13) and Flexible sieve (16) between be provided with compass screen surface sealing plate (4), the side plate that sealing plate is fixed on screen box by sealing plate mounting framework (23) is (13) gone up.
2. linear vibrator according to claim 1 is arranged on the flip flop screen of material feeding end, it is characterized in that: Flexible sieve installation be (16) moved cross beam (15) with fixed cross beam (14) above be provided with the U-type groove steel of introversion (17), the crisperding of adjacent two tension and relaxation screen clothes is placed in introversion U-type groove, inserts in the middle of two screen clothes fixing with trapezoidal spline (24).
3. linear vibrator according to claim 1 is arranged on the flip flop screen of material feeding end, it is characterized in that: (15) moved cross beam is wedge shape seamless steel pipe with fixed cross beam cross section (14), connects the U-type groove steel of introversion (17) above steel pipe.
4. linear vibrator according to claim 1 is arranged on the flip flop screen of material feeding end, it is characterized in that: (9) the Biaxial linear vibrator being positioned at screen box material feeding end is 1-3 group; The force action line of vibrator is parallel with flat face compass screen surface, or parallel with the string of arc surface compass screen surface two ends line.
5. linear vibrator according to claim 1 is arranged on the flip flop screen of material feeding end, it is characterized in that: (11) the dust cap above screen box is be made up of the type steel skeleton be hung (31) and the Thin rubber plate (29) be arranged on skeleton, lateral seal be dust cap (11) with sieve box side plate (13) on be provided with round steel fixed strip (28), with C type opening rubber clamp bar (27), high strength Thin rubber plate (26) is connected on upper and lower round steel fixed strip (28).
6. linear vibrator according to claim 1 is arranged on the flip flop screen of material feeding end, it is characterized in that: at the position up and down of material feeding end sieve box side plate outside (13), vibrator mounting rail, is provided with the reinforcement of increase side plate intensity (6); On the upper edge of sieve box side plate, be vertically arranged with prevent side plate to be out of shape reinforcement (5).
7. linear vibrator according to claim 1 is arranged on the flip flop screen of material feeding end, it is characterized in that: described compass screen surface is flat face compass screen surface or arc surface compass screen surface; The number of plies of compass screen surface is individual layer or bilayer; Screen angle is 15 ~ 25 °.
8. linear vibrator according to claim 1 is arranged on the flip flop screen of material feeding end, it is characterized in that: the positioning beam (22) that (2) described moved cross beam group goes up, the flip flop screen of flat face compass screen surface is straight, the flip flop screen of arc surface compass screen surface is bending, curvature is identical with the curvature of arc surface compass screen surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510235424.0A CN104785438B (en) | 2015-05-11 | 2015-05-11 | Tension and relaxation screen with straight-line oscillator arranged at feeding end |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510235424.0A CN104785438B (en) | 2015-05-11 | 2015-05-11 | Tension and relaxation screen with straight-line oscillator arranged at feeding end |
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| Publication Number | Publication Date |
|---|---|
| CN104785438A true CN104785438A (en) | 2015-07-22 |
| CN104785438B CN104785438B (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510235424.0A Active CN104785438B (en) | 2015-05-11 | 2015-05-11 | Tension and relaxation screen with straight-line oscillator arranged at feeding end |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107442412A (en) * | 2017-07-26 | 2017-12-08 | 北京科技大学 | A kind of Natural classification and balancing distributing method and device for wide particle diameter bulk cargo |
| CN109883898A (en) * | 2019-03-21 | 2019-06-14 | 中国矿业大学(北京) | Kinetic characteristic and kinetic characteristics experimental rig and pilot system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2454048Y (en) * | 2000-12-01 | 2001-10-17 | 鞍山矿山机械股份有限公司 | Double-material independent-supported double-driven tension-relaxation sieve |
| WO2009140316A2 (en) * | 2008-05-16 | 2009-11-19 | M-I L.L.C. | Methods to increase force and change vibratory separator motion |
| CN201728190U (en) * | 2010-07-20 | 2011-02-02 | 王海生 | Large-size flip-flow screen |
| CN204620395U (en) * | 2015-05-11 | 2015-09-09 | 王作军 | Linear vibrator is arranged on the flip flop screen of material feeding end |
-
2015
- 2015-05-11 CN CN201510235424.0A patent/CN104785438B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2454048Y (en) * | 2000-12-01 | 2001-10-17 | 鞍山矿山机械股份有限公司 | Double-material independent-supported double-driven tension-relaxation sieve |
| WO2009140316A2 (en) * | 2008-05-16 | 2009-11-19 | M-I L.L.C. | Methods to increase force and change vibratory separator motion |
| CN201728190U (en) * | 2010-07-20 | 2011-02-02 | 王海生 | Large-size flip-flow screen |
| CN204620395U (en) * | 2015-05-11 | 2015-09-09 | 王作军 | Linear vibrator is arranged on the flip flop screen of material feeding end |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107442412A (en) * | 2017-07-26 | 2017-12-08 | 北京科技大学 | A kind of Natural classification and balancing distributing method and device for wide particle diameter bulk cargo |
| CN109883898A (en) * | 2019-03-21 | 2019-06-14 | 中国矿业大学(北京) | Kinetic characteristic and kinetic characteristics experimental rig and pilot system |
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| Publication number | Publication date |
|---|---|
| CN104785438B (en) | 2017-01-25 |
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Effective date of registration: 20171115 Address after: 114000 Anshan City, Liaoning province Zhengyang deep mountain temple street 6 Building No. 40 Patentee after: Anshan Heng Jun mechanical equipment Co. Ltd. Address before: 114000 Anshan City, Liaoning province Lishan District victory road No. 20-32 Co-patentee before: Wang Haisheng Patentee before: Wang Zuojun |