CN108855915A - A kind of tuner-type vibrating screen - Google Patents
A kind of tuner-type vibrating screen Download PDFInfo
- Publication number
- CN108855915A CN108855915A CN201810532172.1A CN201810532172A CN108855915A CN 108855915 A CN108855915 A CN 108855915A CN 201810532172 A CN201810532172 A CN 201810532172A CN 108855915 A CN108855915 A CN 108855915A
- Authority
- CN
- China
- Prior art keywords
- vibrating screen
- supporting mechanism
- tuner
- screen box
- vibration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for 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
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
- B07B1/40—Resonant vibration screens
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- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a kind of tuner-type vibrating screens, including：Vibrating screen box (10), resonant springs (20), supporting mechanism (30), support spring (40), vibration excitor (50) and measurement control module (60)；Wherein, resonant springs (20) are arranged between supporting mechanism (30) and vibrating screen box (10), are fixed on supporting mechanism (30), and be supported to vibrating screen box (10)；Vibration excitor (50) is mounted on supporting mechanism (20)；Support spring (40) is arranged in supporting mechanism (20) bottom, to support the supporting mechanism (20)；Wherein, measurement control module (60) is connect with vibrating screen box (10) and vibration excitor (50), its intrinsic frequency that can identify and measure the vibration subsystem being made of vibrating screen box (10) and resonant springs (20), and controlling vibration excitor (50) keeps its excited frequency and the intrinsic frequency of substantially equal.
Description
Technical field
The present invention relates to mechanical vibration equipment fields, more particularly to a kind of tuner-type vibrating screen.
Background technique
Vibrating screen is a kind of common vibrating screening device, mainly drives vibrating screen to realize by vibration excitor.But it is existing
With the presence of some disadvantages of vibrating screen, such as be unable to vibration frequency or intensity is difficult to restrain, do not adapt to different screening objects
Etc..
Therefore, it is necessary to new technologies or equipment, and to handle, above-mentioned there are technical problems.
Summary of the invention
In order to overcome disadvantage mentioned above, it is an object of that present invention to provide a kind of tuner-type vibrating screens, including：Vibrating screen box 10,
Resonant springs 20, supporting mechanism 30, support spring 40, vibration excitor 50 and measurement control module 60；
Wherein, resonant springs 20 are arranged between supporting mechanism 30 and vibrating screen box 10, are fixed on supporting mechanism 30,
And vibrating screen box 10 is supported；Vibration excitor 50 is mounted on supporting mechanism 20；Support spring 40 is arranged in supporting mechanism 20
Bottom, to support the supporting mechanism 20；
Wherein, measurement control module 60 is connect with vibrating screen box 10 and vibration excitor 50, can be identified and be measured by vibrating
The intrinsic frequency for the vibration subsystem that screen box 10 and resonant springs 20 are constituted, and control vibration excitor 50 and make its excited frequency and institute
It is of substantially equal to state intrinsic frequency.
According to an embodiment of the invention, wherein the vibration frequency discrimination of the measurement control module is not less than
0.2Hz。
According to an embodiment of the invention, wherein the vibration excitor 50 includes shock electric machine and motor control module,
The motor control module is adjusted the speed using DC frequency-changing.
According to an embodiment of the invention, wherein the support spring stiffness K2Less than resonant springs stiffness K1。
According to an embodiment of the invention, wherein the support spring and the resonant springs are low resistance spring.
According to an embodiment of the invention, wherein the response that exciting vibration frequency caused by the variation of object to be sieved 70 changes
Time is not more than 0.1S.
According to an embodiment of the invention, wherein 40 spring pedestal 41 of the support spring is installed on isolated footing.
According to another aspect of the present invention, it provides and a kind of screens substance using tuner-type vibrating screen of the present invention
Method, including making the relationship of 30 mass M of supporting mechanism and the vibrating screen box and amount of substance m to be sieved meet M >=2m.
According to an embodiment of the invention, wherein the method includes controlling the motor of the shock electric machine of the vibration excitor
Revolving speedWherein K1For resonant springs rigidity, m is the quality of vibrating screen box and object to be sieved.
The present invention creatively combines tuned mass damper with vibrating screen, using vibrating screen and resonant springs structure
At vibration subsystem, intrinsic frequency identifies by measuring control module and controls vibration excitor excited frequency and be equal to it, and makes
It obtains whole device and constitutes the basic framework of tuned mass damper, when exciting force acts in supporting beam, pass through resonance bullet
Spring transfers energy to vibrating screen, to achieve the purpose that screening.The consumption that can accelerate vibrational energy, improves air spring
Damping.
Detailed description of the invention
Fig. 1 is the theory structure schematic diagram of tuner-type vibrating screen according to an embodiment of the invention.
Specific embodiment
Present invention is further described in detail in the following with reference to the drawings and specific embodiments, but not as to limit of the invention
It is fixed.
Fig. 1 is the structural schematic diagram of the tuner-type vibrating screen of one embodiment of the invention.As shown in Figure 1, tuner-type shakes
Dynamic sieve may include vibrating screen box 10, resonant springs 20, supporting mechanism 30, support spring 40, vibration excitor 50 and measurement control
Module 60, object 70 to be sieved are contained in the vibrating screen box 10.
Wherein, vibrating screen box 10 is in box, is used to accommodate object 70 to be sieved.Resonant springs 20 are arranged in vibrating screen box 10
On, to support vibrating screen box 10.Such as resonant springs 20 can be set multiple such as 4,6 etc..More specifically, such as resonance
Spring 20 can be installed on 10 two relative sides of vibrating screen box, and there are spaces to install material in vibrating screen box bottom and side
Conveying equipment etc..Resonant springs 20 can be low resistance spring, can also will swash while providing support for vibrating screen box 10
The hammer vibration energy of vibration device 50 passes to vibrating screen box 10.
Resonant springs 20 are fixed on supporting mechanism 30 for example on top surface.The supporting mechanism for example can be branch
Support the form or other suitable forms of beam.The quality (M) of an embodiment according to the present invention, supporting mechanism 30 can be
Twice or more of vibrating screen and amount of substance (m) to be sieved.Be conducive in this way to screen and providing stable and controllable vibration and energy
Transmitting.
Vibration excitor 50 may be mounted on supporting mechanism 20.Vibration excitor 50 can be synchronous motor vibration excitor.The vibration excitor
50 may include shock electric machine and motor control module (not shown).Such as vibration excitor 50 may include more shock electric machine examples
Ru Yitai, two or four etc..Shock electric machine can be mounted on supporting mechanism 30 by support shaft etc. or directly be pacified
On the side wall of supporting mechanism 30.
The motor control module is for the vibration velocity of vibration excitor 50, frequency, the control of the parameters such as time, and control can be with
It is adjusted the speed using DC frequency-changing.Such as it can control the revolving speed of motor Wherein K1For resonant springs rigidity, m is vibrating screen
The quality of case and object to be sieved.Introduction according to the present invention, in conjunction with the prior art, those skilled in the art can easily realize this
The motor control module of sample.
20 bottom of supporting mechanism is provided with support spring 40, to support the supporting mechanism 20.The support spring 40 is for example
It can be low resistance spring.An embodiment according to the present invention, the stiffness K of support spring 402Resonant springs can be less than
Stiffness K1.Such design is also advantageous.
Measurement control module 60 is connect with vibrating screen box 10, can be identified and be measured by vibrating screen box 10 and resonant springs
The intrinsic frequency of the 20 vibration subsystems constituted.In addition, measurement control module 60 be connected with vibration excitor 50, such as with vibration excitor 50
Motor control module be connected.It measures control module 60 and for example above-mentioned intrinsic frequency of measured parameter is transferred to motor control
Molding block (not shown), motor control module can issue instruction after receiving information, control the shock electric machine of vibration excitor 50,
Keep its excited frequency and the intrinsic frequency of substantially equal.
In addition, the quality of object to be sieved is continually changing due in screening process, it means that vibrating screen box and wait sieve
The quality (m) of object is also to change.Therefore, the intrinsic frequency for the vibration subsystem being made of vibrating screen box 10 and resonant springs 20
It is also variation.Measurement control module 60 can identify different frequencies and identify such frequency variation in time.Such as it surveys
The vibration frequency discrimination of amount control module can be set to not less than 0.2Hz, and treat exciting caused by the variation of sieve object
The response time that vibration frequency changes is not more than 0.1S.
It should be understood that combining the teachings of the present invention and the prior art, those skilled in the art can easily be realized
Such measurement control module 60.
In addition, according to an embodiment of the invention, wherein 40 spring pedestal 41 of the support spring is installed on independent base
On plinth.To realize stable support and avoid unnecessary interference.
Embodiment：
Casting is screened below with tuner-type vibrating screen of the invention；
Experiment condition：Casting is filtered out from casting and foundry sand grain mixture using tuner-type vibrating screen, and casting
Unsegregated sand grains is got rid of on part.Casting full-size is not more than 2cm, and casting and sand grains guarantee wet condition, and part is cast
Sand is adhered on casting, and vibrating screen is installed on isolated footing, keeps stabilization of equipment performance.
Experiment parameter：In 900kg~1100kg range, resonant springs rigidity is for vibrating screen and casting grit blend quality
2560KN/m；Supporting beam quality is 2300kg, and spring rate is 2400KN/m under supporting beam；Measurement control module resolution ratio be
0.1Hz, excited frequency change the response time as 0.08s.
Experimentation：Equipment is initially idle running, when object to be screened is slowly added into vibrating screen, with vibrating screen quality
Change, controller adjusting vibration exciter working frequency controls the Oscillation Amplitude of vibrating screen between 2cm~3cm.
Experimental result (effect)：300kg casting and grit blend are realized in 2 minutes to be kept completely separate, and separating effect is good
Good, casting is without adhesion sand grains.
The above is only the preferable embodiment of the present invention, not does in any form to technical solution of the present invention
Limitation.Any simple modification, form variation and modification are made to above embodiments according to the technical essence of the invention, fallen
Enter protection scope of the present invention.
Claims (9)
1. a kind of tuner-type vibrating screen, including：Vibrating screen box (10), resonant springs (20), supporting mechanism (30), support spring
(40), vibration excitor (50) and measurement control module (60)；
Wherein, resonant springs (20) are arranged between supporting mechanism (30) and vibrating screen box (10), are fixed on supporting mechanism (30)
On, and vibrating screen box (10) is supported；Vibration excitor (50) is mounted on supporting mechanism (20)；Support spring (40) setting
In supporting mechanism (20) bottom, to support the supporting mechanism (20)；
Wherein, measurement control module (60) is connect with vibrating screen box (10) and vibration excitor (50), can be identified and be measured by shaking
The intrinsic frequency of the vibration subsystem of screen box (10) and resonant springs (20) composition is moved, and control vibration excitor (50) to make its exciting
Frequency and the intrinsic frequency are of substantially equal.
2. tuner-type vibrating screen as described in claim 1, wherein the vibration frequency discrimination of the measurement control module is not low
In 0.2Hz.
3. tuner-type vibrating screen as described in claim 1, wherein the vibration excitor (50) includes shock electric machine and motor control
Molding block, the motor control module are adjusted the speed using DC frequency-changing.
4. tuner-type vibrating screen as described in claim 1, wherein the support spring stiffness K2Less than resonant springs stiffness K1。
5. tuner-type vibrating screen as described in claim 1, wherein the support spring and the resonant springs are low resistance
Spring.
6. tuner-type vibrating screen as described in claim 1, wherein exciting vibration frequency caused by the variation of object to be sieved (70) changes
The response time of change is not more than 0.1S.
7. tuner-type vibrating screen as described in claim 1, wherein the support spring (40) spring pedestal (41) is installed on solely
On the basis of vertical.
8. a kind of method for screening substance using the tuner-type vibrating screen of any of claims 1-7, including make
Supporting mechanism (30) mass M and the relationship of the vibrating screen box and amount of substance m to be sieved meet M >=2m.
9. method according to claim 8, the motor speed of the shock electric machine including controlling the vibration excitorIts
Middle K1For resonant springs rigidity, m is the quality of vibrating screen box and object to be sieved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810532172.1A CN108855915A (en) | 2018-05-29 | 2018-05-29 | A kind of tuner-type vibrating screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810532172.1A CN108855915A (en) | 2018-05-29 | 2018-05-29 | A kind of tuner-type vibrating screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108855915A true CN108855915A (en) | 2018-11-23 |
Family
ID=64335593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810532172.1A Pending CN108855915A (en) | 2018-05-29 | 2018-05-29 | A kind of tuner-type vibrating screen |
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| Country | Link |
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| CN (1) | CN108855915A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111001558A (en) * | 2019-12-18 | 2020-04-14 | 广西安硕尔安全技术有限责任公司 | Seat type coupling vibration screening machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2208985Y (en) * | 1994-11-17 | 1995-10-04 | 沈阳黄金学院 | Elastic exciting and vibration isolating double coupling vibration screen |
| CN101703998A (en) * | 2009-12-05 | 2010-05-12 | 湖北华润科技有限公司 | Butyl rubber plug static electricity removal and vibration screening machine |
| CN206911744U (en) * | 2017-07-17 | 2018-01-23 | 中国建筑第二工程局有限公司 | Novel civil engineering shale shaker |
| CN107876394A (en) * | 2017-12-01 | 2018-04-06 | 深圳市华威环保建材有限公司 | A kind of screening plant |
-
2018
- 2018-05-29 CN CN201810532172.1A patent/CN108855915A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2208985Y (en) * | 1994-11-17 | 1995-10-04 | 沈阳黄金学院 | Elastic exciting and vibration isolating double coupling vibration screen |
| CN101703998A (en) * | 2009-12-05 | 2010-05-12 | 湖北华润科技有限公司 | Butyl rubber plug static electricity removal and vibration screening machine |
| CN206911744U (en) * | 2017-07-17 | 2018-01-23 | 中国建筑第二工程局有限公司 | Novel civil engineering shale shaker |
| CN107876394A (en) * | 2017-12-01 | 2018-04-06 | 深圳市华威环保建材有限公司 | A kind of screening plant |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111001558A (en) * | 2019-12-18 | 2020-04-14 | 广西安硕尔安全技术有限责任公司 | Seat type coupling vibration screening machine |
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Application publication date: 20181123 |