CN103752510A - Screening plate of self-cleaning vibrating screen - Google Patents
Screening plate of self-cleaning vibrating screen Download PDFInfo
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- CN103752510A CN103752510A CN201410053712.XA CN201410053712A CN103752510A CN 103752510 A CN103752510 A CN 103752510A CN 201410053712 A CN201410053712 A CN 201410053712A CN 103752510 A CN103752510 A CN 103752510A
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Abstract
The invention provides a screening plate of a self-cleaning vibrating screen. The screening plate of the self-cleaning vibrating screen comprises a screening body, a plurality of first screening strips, a plurality of second screening strips and a driving device, wherein the screening body is used for providing support, the first screening strips are arranged in parallel, the two ends of each first screening strip are installed on the screening body, the second screening strips are arranged in parallel, the ends of each second screening strip can be installed on the screening body in the mode that the ends can horizontally move on the screening body, the first screening strips and the second screening strips are located at the same altitude and are arranged at intervals, gaps are formed between every two adjacent first screening strips and between every two adjacent second screening strips, so that a screen is formed, and the driving device is connected with the second screening strips and is used for driving the second screening strips to reciprocate on the screening body. The screening plate of the self-cleaning vibrating screen has the advantages that the probability that holes are blocked by materials can be reduced, and screening efficiency is improved.
Description
Technical field
The present invention relates to vibration screening machinery field, particularly, the present invention be more particularly directed to a kind of self-cleaning type vibration sieve plate.
Background technology
Screening is operation indispensable in multinomial industrial and agricultural production, screening quality, effect direct relation subsequent processing smoothly whether, product quality, cost etc.Therefore, screening and corresponding screening plant are the focus of industry always.
As an important applied field of screening, screening is an important step in coal processing and utilization process always, in coal screening process, for the Wet Coal ' that moisture content is greater than 6%, screen size requires 3～6mm, because coal particles is little, specific area large, meet water, easily adheres to and cause plug-hole, make screening effect variation, adopt common vibratory sieve to be difficult to, therefore such coal is considered to difficult screened material.How this part coal being sieved, realize not plug-hole, improve screening efficiency, is the problem that current material sieving technology is needed solution badly.
For addressing this problem, industry has been done extensive research, has all obtained certain achievement in theory and practice, mainly comprises flip flop screen, elastic vibrating bar sieve etc.Flip flop screen is to adopt screen cloth (being generally abrasion resistant polyurethane material) to be fixed on 2 can do on the sieve nest doing relatively reciprocating motion simultaneously, by the reciprocating motion of 2 sieve nests, pull that screen cloth is regular and do " tension and relaxation is flexible " motion, make material be difficult for plug-hole, but this type of sieve screen cloth is short service life, and expensive, promote to get up to have any problem.Elastic vibrating bar sieve adopts much has flexible rod iron as grating, the grating composition screen cloth that is arranged in parallel, the opinion of grating and both sides fixing hole leaves certain interval, in sieve nest vibration processes, each grating all can do with respect to sieve nest the play of certain amplitude, therefore has certain self-cleaning function, because this kind of sieve processing and fabricating is easy, price is low, is widely used at present.But this elastic vibrating bar sieve still has certain limitation, for example, in use, the quality of its screening effect depends on the impact that the bulk granule materials in feed coal carries out screen cloth, if large granular materials is many, impact to grating is large, can give full play to the elasticity of grating, increases its Oscillation Amplitude, screening effect is all right, if do not have in raw coal or seldom have bulk materials, often screening effect is not ideal, still has plug-hole phenomenon.
Summary of the invention
The object of the present invention is to provide a kind of self-cleaning type vibration sieve plate, simple, the with low cost and minimizing material plug-hole with implementation structure.
In order to address the above problem, the invention provides a kind of self-cleaning type vibration sieve plate, its technical scheme is as follows:
A kind of self-cleaning type vibration sieve plate, it comprises: sieve nest, for providing support; Multiple the first gratings, are arranged in parallel, and described in each, the two ends of the first grating are installed on described sieve nest; Multiple the second gratings, be arranged in parallel, described in each, the end horizontal of the second grating is installed on described sieve nest movably, multiple described the first gratings and multiple described the second grating are positioned at sustained height and space arranges, and is provided with gap to form screen cloth between adjacent multiple described the first grating, multiple described the second grating; Drive unit, is connected with multiple described the second gratings, for driving multiple described the second gratings to move back and forth on described sieve nest.
In a kind of preferred embodiment of above-mentioned self-cleaning type vibration sieve plate, described sieve nest comprises the first pedestal, the second pedestal that are oppositely arranged, the inner side of described the first pedestal, the second pedestal is provided with multiple grooves one to one of level, and the two ends of described the first grating embed respectively in the described groove of mutual correspondence of described the first pedestal, the second pedestal; Described the first pedestal, the second pedestal are provided with the through hole one to one of level, and the described through hole of the mutual correspondence of described the first pedestal, the second pedestal is passed respectively at the two ends of described the second grating.
In a kind of preferred embodiment of above-mentioned self-cleaning type vibration sieve plate, described groove is greater than the end of described the first grating, so that described the first grating can be with respect to described sieve nest play.
In a kind of preferred embodiment of above-mentioned self-cleaning type vibration sieve plate, described drive unit is double acting hydraulic cylinder or pneumatic cylinder, and the piston rod external part of described drive unit is connected to drive described the second grating horizontal reciprocating to move with the end of described the second grating.
In a kind of preferred embodiment of above-mentioned self-cleaning type vibration sieve plate, also comprise spring, described drive unit is hydraulic cylinder or pneumatic cylinder, the piston rod external part of described drive unit is connected to drive described the second grating to move horizontally with the first end of described the second grating, and described spring is arranged at the second end of described the second grating to assist described the second grating to reset.
In a kind of preferred embodiment of above-mentioned self-cleaning type vibration sieve plate, described spring is extension spring, and one end of described spring is connected in the second end of described the second grating, and the other end of described spring is fixed.
In a kind of preferred embodiment of above-mentioned self-cleaning type vibration sieve plate, described spring is Compress Spring, described spring housing is located at the second end of described the second grating, and the first end of described spring is supported on described sieve nest, the second end of described spring is connected in the second end face of described the second grating.
In a kind of preferred embodiment of above-mentioned self-cleaning type vibration sieve plate, described drive unit comprises motor and cam mechanism, described motor is connected with described cam mechanism, described cam mechanism is connected with the end of described the second grating, thereby drives described the second grating to move back and forth rotatablely moving of described motor is converted to horizontal movement.
In a kind of preferred embodiment of above-mentioned self-cleaning type vibration sieve plate, the first end of described the second grating is connected in a drive connecting rod simultaneously, and described drive unit is connected in described drive connecting rod, thereby indirectly drives described the second grating to move.
In a kind of preferred embodiment of above-mentioned self-cleaning type vibration sieve plate, the second end of described the second grating is connected in a follower link simultaneously.
Analyze known, the invention provides a kind of self-cleaning type vibration sieve plate, during its applied shaker vibration, two adjacent gratings can relatively move back and forth under power drive, the material loosening adhering between two gratings is decomposed, thereby be difficult for plug-hole, whereby, the present invention can reduce material plug-hole probability, improves screening efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the hydraulic cylinder piston rod of the preferred embodiment of the present invention while stretching out;
Fig. 2 be the preferred embodiment of the present invention hydraulic cylinder piston rod retract time structural representation.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further details.
As depicted in figs. 1 and 2, the preferred embodiment of the present invention comprises the sieve nest providing a supporting role, multiple the first grating 8, multiple the second grating 7, drive unit 6.
Preferably, sieve nest comprises the first pedestal 3, the second pedestal 4, and the Main Function of the two is that the first grating 8, the second grating 7 for setting up on it provides a supporting role; And provide installation, fixing basis for spring 5, drive unit 6.It is parallel shaft-like that the first pedestal 3, the second pedestal 4 are, and is oppositely arranged.But the present invention is not limited thereto, in other embodiments, also sieve nest can be designed to hollow structure.
Multiple the first gratings 8 are arranged in parallel, and the two ends of each the first grating 8 are installed on respectively on first pedestal 3, the second pedestal 4 of sieve nest.Multiple the second gratings 7 are arranged in parallel, the end horizontal of each the second grating 7 is installed on first pedestal 3, the second pedestal 4 of sieve nest movably, multiple the first gratings 8 and multiple the second grating 7 are positioned at sustained height and space arranges, and is provided with gap to form screen cloth between adjacent multiple the first gratings 8, multiple the second grating 7.
Drive unit 6 is connected with multiple the second gratings 7, for drive multiple the second gratings 7 sieve nest the first pedestal 3, the second pedestal 4 on back and forth move left and right.In this preferred embodiment, drive unit 6 is for being installed on respectively two hydraulic cylinders at the second pedestal 4 two ends, and the first end of the second grating 7, the second end are connected to a drive connecting rod 2, a follower link 1.The piston rod external part of drive unit 6 is connected in drive connecting rod 2, and the cylinder body of drive unit 6 is fixed on the second pedestal 4.5, spring is Compress Spring, and it is sheathed on the first end end of at least one the second grating 7, and one end of spring 5 supports in the outside of the first pedestal 3, and the other end is supported the inner side in follower link 1.Drive unit 6 and spring 5 actings in conjunction move back and forth follower link 1, drive connecting rod 2, and then drive the second whole grating 7 left and right to move back and forth.
Obviously, follower link 1 can increase the stability that multiple the second gratings 7 move, and 2 of drive connecting rod can reduce the quantity of drive unit.Otherwise, should be each second grating and configure a drive unit.Meanwhile, drive connecting rod 2 also can guarantee the uniformity that the second grating 7 moves.
Particularly, if drive unit 6 is a double acting hydraulic cylinder, it can drive drive connecting rod 2 to move left and right, and then drives the second grating 7 left and right to move back and forth, and the auxiliary follower link 1 of spring 5 is moved to the left reset, as Fig. 2.Certainly, in other embodiments, the power that spring 5, the second gratings 7 are moved to the left reset also can be set and all carry out automatic drive device 6.If drive unit 6 is a single-action hydraulic cylinder, the power that the second grating 7 is moved to the left reset comes from the elastic force of spring 5 substantially.In other embodiments, drive unit can be also pneumatic cylinder, and it is installed, substantially roughly the same hydraulic cylinder of the method for operation.
This preferred embodiment is when application, shaker vibration, adjacent two the first gratings 8, the second gratings 7 can relatively move back and forth discontinuously or incessantly under the driving of drive unit 6, the material loosening that adheres to 7 of adjacent two first gratings 8, the second grating is decomposed, thereby make material be difficult for plug-hole.
More preferably, in order to realize the simple installation of the first grating 8, the second grating 7, the inner side of the first pedestal 3, the second pedestal 4 is respectively equipped with multiple grooves 31 one to one of level, the two ends of groove 41, the first gratings 8 embed respectively in the groove 31,41 of mutual correspondence.On the first pedestal 3, the second pedestal 4, be respectively equipped with the two ends of through hole one to one 30, through hole 40, the second gratings 7 of level respectively through the through hole 30,40 of the mutual correspondence of the first pedestal 3, the second pedestal 4.Certainly, the second grating 7 is matched in clearance with through hole 30,40, so that the second grating 7 moves smoothly.
Preferably, groove 31,41 is greater than the end of the first grating 8, so that the first grating 8 can be with respect to the first pedestal 3, the second pedestal 4 plaies.
The spring 5 of this preferred embodiment is Compress Spring, and it is sheathed on the second end of the second grating 7, and first end is supported on the first pedestal 3, and the second end is supported in follower link 1.In other embodiments, spring can be also extension spring, and its mounting means should be different, if one end of extension spring is connected in one end of the second grating, the other end of this extension spring is fixed on the supporter away from this end of the second grating.
In other embodiments, drive unit can adopt electronic mode, for example drive unit comprises motor and cam mechanism, motor is connected with cam mechanism, cam mechanism is connected with the end of the second grating, thereby drives the second grating to move back and forth rotatablely moving of motor is converted to horizontal movement.
When the applied vibratory sieve work of this preferred embodiment, sieve nest drives the first grating 8, the second grating 7 to vibrate together.Meanwhile, owing to leaving certain interval between the first grating 8 and groove 31, groove 41, the first grating 8 relies on the elastic vibration that material impact produces, and can do with respect to sieve nest the play of certain amplitude, and its principle is similar to elastic vibrating bar sieve.As Fig. 1, the second grating 7 is by the driving of drive unit 6, and it moves right, when the second grating 7 moves right, and Compress Spring 5.During reset, the piston rod of drive unit 6 reclaims, and the second grating 7, under the elastic force effect of spring 5, is moved to the left reset, forms one stroke.By moving left and right of the second grating 7, and the independent play of the first grating 8, can keep compass screen surface clean, not plug-hole.
To sum up, the present invention has following two features:
Two adjacent gratings can relatively move.
Driving the power set of grating relative motion various informative, can be driven by motor camshaft rotating mechanism, can be also the forms such as cylinder, hydraulic cylinder.
The resetting means of grating, both can drive with power set, also can adopt form of springs (extension spring or stage clip all can).
Whereby, two gratings that the present invention is adjacent can relatively move back and forth discontinuously under power drive, the material loosening adhering between two gratings is decomposed, thereby reduce material plug-hole probability, improve screening efficiency.Test shows, by the present invention during by the problem of the stifled sieve of material in solving Wet Coal ' particulate dry screening, effect is very good.
As known by the technical knowledge, the present invention can realize by other the embodiment that does not depart from its Spirit Essence or essential feature.Therefore, above-mentioned disclosed embodiment, with regard to each side, all just illustrates, and is not only.Within the scope of the present invention all or be all included in the invention in the change being equal in scope of the present invention.
Claims (10)
1. a self-cleaning type vibration sieve plate, is characterized in that, comprising:
Sieve nest, for providing support;
Multiple the first gratings, are arranged in parallel, and described in each, the two ends of the first grating are installed on described sieve nest;
Multiple the second gratings, be arranged in parallel, described in each, the end horizontal of the second grating is installed on described sieve nest movably, multiple described the first gratings and multiple described the second grating are positioned at sustained height and space arranges, and is provided with gap to form screen cloth between adjacent multiple described the first grating, multiple described the second grating;
Drive unit, is connected with multiple described the second gratings, for driving multiple described the second gratings to move back and forth on described sieve nest.
2. self-cleaning type vibration sieve plate according to claim 1, it is characterized in that, described sieve nest comprises the first pedestal, the second pedestal that are oppositely arranged, the inner side of described the first pedestal, the second pedestal is provided with multiple grooves one to one of level, and the two ends of described the first grating embed respectively in the described groove of mutual correspondence of described the first pedestal, the second pedestal;
Described the first pedestal, the second pedestal are provided with the through hole one to one of level, and the described through hole of the mutual correspondence of described the first pedestal, the second pedestal is passed respectively at the two ends of described the second grating.
3. self-cleaning type vibration sieve plate according to claim 2, is characterized in that, described groove is greater than the end of described the first grating, so that described the first grating can be with respect to described sieve nest play.
4. self-cleaning type vibration sieve plate according to claim 1, it is characterized in that, described drive unit is double acting hydraulic cylinder or pneumatic cylinder, and the piston rod external part of described drive unit is connected to drive described the second grating horizontal reciprocating to move with the end of described the second grating.
5. self-cleaning type vibration sieve plate according to claim 1, it is characterized in that, also comprise spring, described drive unit is hydraulic cylinder or pneumatic cylinder, the piston rod external part of described drive unit is connected to drive described the second grating to move horizontally with the first end of described the second grating, and described spring is arranged at the second end of described the second grating to assist described the second grating to reset.
6. self-cleaning type vibration sieve plate according to claim 5, is characterized in that, described spring is extension spring, and one end of described spring is connected in the second end of described the second grating, and the other end of described spring is fixed.
7. self-cleaning type vibration sieve plate according to claim 5, it is characterized in that, described spring is Compress Spring, described spring housing is located at the second end of described the second grating, and the first end of described spring is supported on described sieve nest, the second end of described spring is connected in the second end face of described the second grating.
8. self-cleaning type vibration sieve plate according to claim 1, it is characterized in that, described drive unit comprises motor and cam mechanism, described motor is connected with described cam mechanism, described cam mechanism is connected with the end of described the second grating, thereby drives described the second grating to move back and forth rotatablely moving of described motor is converted to horizontal movement.
9. according to the arbitrary described self-cleaning type vibration sieve plate of claim 4-8, it is characterized in that, the first end of described the second grating is connected in a drive connecting rod simultaneously, and described drive unit is connected in described drive connecting rod, thereby indirectly drives described the second grating to move.
10. according to the arbitrary described self-cleaning type vibration sieve plate of claim 4-8, it is characterized in that, the second end of described the second grating is connected in a follower link simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410053712.XA CN103752510B (en) | 2014-02-17 | 2014-02-17 | Self-cleaning type vibration sieve plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410053712.XA CN103752510B (en) | 2014-02-17 | 2014-02-17 | Self-cleaning type vibration sieve plate |
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| CN103752510A true CN103752510A (en) | 2014-04-30 |
| CN103752510B CN103752510B (en) | 2016-09-07 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106076821A (en) * | 2016-08-30 | 2016-11-09 | 徐州东宏机械制造有限公司 | A kind of detachable two-mode mechanical picker |
| CN106179951A (en) * | 2016-08-30 | 2016-12-07 | 徐州东宏机械制造有限公司 | A kind of reinforced dismountable mechanical sieve |
| CN107042199A (en) * | 2017-05-12 | 2017-08-15 | 刘云龙 | A kind of concrete raw material screening installation poured into a mould for Bridge guardrail |
| CN107439193A (en) * | 2017-08-25 | 2017-12-08 | 道真自治县黔福现代农业开发有限责任公司 | Radix Codonopsis nursery implantation methods |
| CN111229592A (en) * | 2020-01-20 | 2020-06-05 | 滁州学院 | Sunflower seed preparation equipment and preparation process |
| CN111422387A (en) * | 2020-04-01 | 2020-07-17 | 李俊静 | Filling equipment of solid desiccant for medical treatment |
| CN111854415A (en) * | 2020-07-15 | 2020-10-30 | 合肥三伍机械有限公司 | Self-cleaning screen plate structure for dryer and dryer |
| CN112718218A (en) * | 2020-12-16 | 2021-04-30 | 徐国兰 | Ore crushing and screening device |
| CN112958435A (en) * | 2021-02-04 | 2021-06-15 | 单海艳 | Coal production screening plant |
| CN114247638A (en) * | 2021-12-21 | 2022-03-29 | 江苏徐工工程机械研究院有限公司 | Screening machine |
| CN114308623A (en) * | 2021-12-30 | 2022-04-12 | 贵州师范学院 | Efficient gravel filtering device for building engineering |
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| CN201841111U (en) * | 2010-11-11 | 2011-05-25 | 攀钢集团钢铁钒钛股份有限公司 | Grate screening equipment |
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| CN203750831U (en) * | 2014-02-17 | 2014-08-06 | 中国能建集团装备有限公司北京技术中心 | Self-cleaning vibrating screen plate |
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| EP0074935A2 (en) * | 1981-09-15 | 1983-03-23 | Ilario Bearzot | Self-cleaning reciprocating screen |
| JPH06304528A (en) * | 1993-04-23 | 1994-11-01 | Mitsubishi Rayon Eng Co Ltd | Screening surface cleaning device for refuse screening machine |
| CN201300120Y (en) * | 2008-11-05 | 2009-09-02 | 熊启勋 | Mechanism for screening materials |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106076821A (en) * | 2016-08-30 | 2016-11-09 | 徐州东宏机械制造有限公司 | A kind of detachable two-mode mechanical picker |
| CN106179951A (en) * | 2016-08-30 | 2016-12-07 | 徐州东宏机械制造有限公司 | A kind of reinforced dismountable mechanical sieve |
| CN106076821B (en) * | 2016-08-30 | 2017-12-19 | 徐州东宏机械制造有限公司 | A kind of detachable two-mode mechanical picker |
| CN106179951B (en) * | 2016-08-30 | 2018-06-22 | 徐州东宏机械制造有限公司 | A kind of reinforced dismountable mechanical sieve |
| CN107042199A (en) * | 2017-05-12 | 2017-08-15 | 刘云龙 | A kind of concrete raw material screening installation poured into a mould for Bridge guardrail |
| CN107439193A (en) * | 2017-08-25 | 2017-12-08 | 道真自治县黔福现代农业开发有限责任公司 | Radix Codonopsis nursery implantation methods |
| CN111229592A (en) * | 2020-01-20 | 2020-06-05 | 滁州学院 | Sunflower seed preparation equipment and preparation process |
| CN111422387A (en) * | 2020-04-01 | 2020-07-17 | 李俊静 | Filling equipment of solid desiccant for medical treatment |
| CN111422387B (en) * | 2020-04-01 | 2021-07-30 | 中南大学湘雅医院 | Filling equipment of solid desiccant for medical treatment |
| CN111854415A (en) * | 2020-07-15 | 2020-10-30 | 合肥三伍机械有限公司 | Self-cleaning screen plate structure for dryer and dryer |
| CN112718218A (en) * | 2020-12-16 | 2021-04-30 | 徐国兰 | Ore crushing and screening device |
| CN112958435A (en) * | 2021-02-04 | 2021-06-15 | 单海艳 | Coal production screening plant |
| CN114247638A (en) * | 2021-12-21 | 2022-03-29 | 江苏徐工工程机械研究院有限公司 | Screening machine |
| CN114308623A (en) * | 2021-12-30 | 2022-04-12 | 贵州师范学院 | Efficient gravel filtering device for building engineering |
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