CN117427882A - Anti-resonance vibrating screen - Google Patents
Anti-resonance vibrating screen Download PDFInfo
- Publication number
- CN117427882A CN117427882A CN202311701123.3A CN202311701123A CN117427882A CN 117427882 A CN117427882 A CN 117427882A CN 202311701123 A CN202311701123 A CN 202311701123A CN 117427882 A CN117427882 A CN 117427882A
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- China
- Prior art keywords
- vibrating
- main
- main vibrating
- springs
- spring
- Prior art date
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Links
- 230000005284 excitation Effects 0.000 claims abstract description 11
- 230000002093 peripheral effect Effects 0.000 claims abstract description 11
- 238000012216 screening Methods 0.000 claims abstract description 5
- 229920001971 elastomer Polymers 0.000 claims description 8
- 239000000806 elastomer Substances 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims 1
- 150000002736 metal compounds Chemical class 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 238000012546 transfer Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 210000002706 plastid Anatomy 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000002905 metal composite material Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 239000000805 composite resin Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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
- B07B1/40—Resonant vibration 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
Landscapes
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention relates to the technical field of screening equipment, in particular to an anti-resonance vibrating screen, which comprises an excitation body, wherein the top of the excitation body is connected with one side of the elastic body, the other side of the elastic body is connected with a screen box, the elastic body comprises a plurality of main vibrating springs, the main vibrating springs are of cylindrical structures, the axial directions of the main vibrating springs are parallel to the screen surface of the screen box, one side on the outer peripheral surface of the main vibrating springs is connected with the excitation body, the other side on the outer peripheral surface of the main vibrating springs is connected with the screen box, and the excitation body and the screen box are oppositely arranged relative to the main vibrating springs. The vibrating table has the beneficial effects that when the vibration exciter vibrates to enable the vibrating table to vibrate, due to the limitation of the structural shape of the main vibrating spring, the main vibrating spring can only elastically deform along the direction vertical to the axial direction of the main vibrating spring so as to transfer the vibration of the vibrating table to the screen box, the torsion in the left-right direction on the main vibrating spring is greatly reduced or even eliminated, and finally the screen box can only vibrate along the direction vertical to the screen surface without arranging a limiter.
Description
Technical Field
The invention relates to the technical field of screening equipment, in particular to an anti-resonance vibrating screen.
Background
In the metallurgical, mining and coal-dressing industries, a screening process is an indispensable important link, a vibrating screen is one of common screening equipment, the types of traditional vibrating screens are many, and coal classifying vibrating screens, ore classifying vibrating screens, cold ore screens, hot ore screens and the like are classified according to purposes; the probability sieve, the equal-thickness sieve, the probability equal-thickness sieve and the like are divided according to the sieving principle; the driving principle is divided into elastic connecting rod type, electromagnetic type, inertial type, pneumatic and hydraulic modes and the like; the method can also be divided according to the dynamic characteristics, such as the positions of the working points in the frequency response curve, and the method comprises a far super resonant screen non-resonant screen, a low-critical near-resonant screen and a counter-resonant screen; according to whether the vibration system is linear or nonlinear, a linear vibration sieve and a nonlinear vibration sieve are arranged; the screen machine can be divided according to the motion track of the working part of the screen machine, and comprises a linear motion vibrating screen, a circular motion vibrating screen, an elliptical motion vibrating screen and the like.
The screen box of the anti-resonance vibrating screen is an upper plastid, the vibration exciter is a lower plastid, the upper plastid works according to the required vibration amplitude of the screen machine in an anti-resonance state, and the lower plastid is almost motionless, so that a better vibration isolation effect is easy to obtain. The upper body of the anti-resonance vibrating screen is not provided with a vibration exciter, the vibration-taking mass is small, the height of the screen box can be reduced, and the mass required by reinforcing the vibration exciter is omitted, so that the vibration-taking mass can be further reduced, the total vibration-taking mass can be reduced by 20% -30%, the vibration-taking mass is reduced, the vibration-taking force can be reduced accordingly, the motor power is reduced, and the energy conservation is facilitated. The lower mass body hardly vibrates, the requirements on rigidity and strength are easily ensured during design, the vibration exciter can be basically designed according to static load, and the noise of the whole machine can be obviously reduced.
The existing anti-resonance vibrating screen is characterized in that a spiral spring is used for transmitting vibration from a vibration exciting body to a screen box, torsion and force perpendicular to a screen surface exist on the spiral spring during vibration, and the torsion on the spiral spring can cause deflection of the screen box during vibration, so that a limiter is usually arranged in the prior art, one end of the limiter is fixedly connected with the screen box, the other end of the limiter is fixedly connected with the vibration exciting body, and relative movement of the screen box and the vibration exciting body is restrained, so that the screen box and the vibration exciting body only produce relative movement in the direction perpendicular to the screen surface. However, this has the disadvantage that, firstly, the torque of the coil spring is limited only by the stopper and is not reduced, and, secondly, the design cost, the manufacturing cost and the arrangement space of the stopper are increased.
Disclosure of Invention
The invention provides an anti-resonance vibrating screen, which aims to solve the technical problems that in the prior art, torsion exists on a spiral spring in the anti-resonance vibrating screen, so that effective vibrating force is small and a limiter is required to be additionally arranged.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the utility model provides an anti-resonance vibrating screen, it includes the vibration excitation body, the top of vibration excitation body is connected with one side of elastomer, the opposite side of elastomer is connected with the sieve case, wherein, the elastomer includes a plurality of main springs that shake, main spring that shake is tubular structure, the axial direction of main spring that shakes is parallel arrangement with the sieve face of sieve case, one side on the outer peripheral face of main spring that shakes is connected with the vibration excitation body, the opposite side on the outer peripheral face of main spring that shakes is connected with the sieve case, vibration excitation body and sieve case are relative to main spring that shakes setting oppositely.
By adopting the above structural scheme, when the vibration body vibrates to enable the vibrating table to vibrate, due to the limitation of the structural shape of the main vibrating spring, the main vibrating spring can only elastically deform along the direction vertical to the axial direction of the main vibrating spring so as to transfer the vibration of the vibrating table to the screen box, the torsion in the left-right direction on the main vibrating spring is greatly reduced or even eliminated, and finally the screen box can only vibrate along the direction vertical to the screen surface without arranging a limiter.
As a preferred implementation mode of the antiresonant vibrating screen, a vibrating table is connected to an output piece of the vibration exciter, the elastic body is connected with the vibration exciter through the vibrating table, and a plurality of main vibrating springs are connected to the table top of the vibrating table.
By adopting the structural scheme, all the main vibrating springs can be uniformly stressed at the same time.
As a preferred implementation mode of the antiresonance vibrating screen, the bottom of the screen box is provided with a plurality of cross arms, the plurality of main vibrating springs are divided into a plurality of groups, and each group of main vibrating springs is correspondingly connected with one cross arm.
By adopting the structural scheme, the main vibrating spring and the screen box can be fastened and effectively connected, and the uniform stress of each part of the screen box is ensured.
As a preferred implementation of the antiresonant vibrating screen, each set of main vibrating springs is divided into a transverse main vibrating spring and a longitudinal main vibrating spring, and the axial directions of the transverse main vibrating spring and the longitudinal main vibrating spring are perpendicular.
By adopting the above structural scheme, the same cross arm is provided with the transverse main vibrating spring and the longitudinal main vibrating spring, and the two main vibrating springs can mutually restrict the deformation in other directions except the direction vertical to the screen surface, so as to restrict the relative movement of the vibration exciter and the screen box in other directions.
As a preferred implementation of the antiresonant vibrating screen, the transverse main vibrating springs and the longitudinal main vibrating springs are staggered.
By adopting the above structural scheme, because the transverse main vibrating springs and the longitudinal main vibrating springs are arranged in a staggered manner, deformation except deformation in other directions perpendicular to the direction of the screen surface can be restrained better, the main vibrating springs on each cross arm can vibrate along the direction perpendicular to the screen surface, and finally the screen box can vibrate along the direction perpendicular to the screen surface without arranging a limiter.
As a preferred implementation of the antiresonant vibrating screen, the outer circumferential surface of the main vibrating spring from the direction of the exciting body to the direction of the screen box is arc-shaped.
By adopting the structural scheme, the main vibration spring can only deform along the direction from the vibration exciter to the screen box, so that the torsion is reduced.
As a preferred implementation of the antiresonant vibrating screen, the main vibrating spring has a circular, oval or oblong cross section.
As a preferred implementation of the antiresonant vibrating screen, the screen box is arranged in a slope with one end being higher and the other end being lower.
By adopting the structural scheme, the anti-resonance vibration device is mainly suitable for anti-resonance vibration of the obliquely arranged screen box.
As a preferred implementation of the antiresonant vibrating screen, the main vibrating spring is a rubber-metal composite spring.
By adopting the structural scheme, the structural strength of the main vibration spring is higher, and the deformation in other directions on the main vibration spring is further reduced.
The invention has the beneficial effects that:
when the vibration exciter vibrates to enable the vibrating table to vibrate, due to the limitation of the structural shape of the main vibrating spring, the main vibrating spring can only elastically deform along the direction perpendicular to the axial direction of the main vibrating spring so as to transfer the vibration of the vibrating table to the screen box, the torsion in the left-right direction on the main vibrating spring is greatly reduced or even eliminated, and finally the screen box can vibrate only along the direction perpendicular to the screen surface without arranging a limiter.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic side view of an antiresonance shaker according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along the direction A-A in FIG. 1;
fig. 3 is an enlarged view of the B-section structure in fig. 1.
Reference numerals illustrate:
1. an excitation body; 11. a vibration table; 2. a main vibrating spring; 21. a transverse main vibrating spring; 22. a longitudinal main vibrating spring; 3. a screen box; 31. and a cross arm.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to the drawings in this specific embodiment, and it is apparent that the embodiments described below are only some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, based on the embodiments in this patent, which would be within the purview of one of ordinary skill in the art without the particular effort to make the invention are intended to be within the scope of the patent protection.
Referring to fig. 1-3, the present embodiment provides an anti-resonance vibrating screen, which includes an exciting body 1, wherein an output piece of the exciting body 1 is connected with a vibrating table 11, a top table surface of the vibrating table 11 is connected with one side of an elastic body, the other side of the elastic body is connected with a cross arm 31 at the bottom of a screen box 3, one end of the screen box 3 is high, and the other end of the elastic body is low, wherein the elastic body includes a plurality of main vibrating springs 2, the main vibrating springs 2 are rubber metal composite springs or resin-based composite springs, the plurality of main vibrating springs 2 are all connected with the table surface of the vibrating table 11, the bottom of the screen box 3 is provided with a plurality of cross arms 31, the plurality of main vibrating springs 2 are divided into a plurality of groups, and each group of main vibrating springs 2 are correspondingly connected with one cross arm 31; the main vibrating spring 2 is of a cylindrical structure, the axial direction of the main vibrating spring 2 is parallel to the screen surface of the screen box 3, one side on the outer peripheral surface of the main vibrating spring 2 is connected with the vibrating table 11, the other side on the outer peripheral surface of the main vibrating spring 2 is connected with the cross arm 31, and the vibration exciter 1 and the screen box 3 are oppositely arranged relative to the main vibrating spring 2; the outer peripheral surface of the main vibrating spring 2 from the direction of the vibration exciter 1 to the direction of the screen box 3 is arc-shaped, specifically, the cross section of the main vibrating spring 2 is oblong, two flat surfaces on the outer peripheral surface are respectively connected with the cross arm 31 and the vibrating table 11, and two arc-shaped surfaces on the outer peripheral surface are positioned between the cross arm 31 and the vibrating table 11; in other embodiments, the cross section of the main vibrating spring 2 may be circular, elliptical, etc., so as to ensure that the outer circumferential surface of the main vibrating spring 2 between the direction of the exciting body 1 and the direction of the screen box 3 is arc-shaped. Each group of main vibration springs 2 is divided into a transverse main vibration spring 21 and a longitudinal main vibration spring 22, and the axial directions of the transverse main vibration spring 21 and the longitudinal main vibration spring 22 are vertically arranged; the transverse main vibration springs 21 and the longitudinal main vibration springs 22 are staggered.
The principle of this embodiment is:
when the vibration body 1 vibrates to enable the vibration table 11 to vibrate, due to the limitation of the structural shape of the main vibration spring 2, the main vibration spring 2 can only elastically deform along the direction perpendicular to the axial direction of the main vibration spring 2, so that torsion in the left-right direction on the main vibration spring 2 is greatly reduced or even eliminated, and due to the staggered arrangement of the transverse main vibration springs 21 and the longitudinal main vibration springs 22, deformation in other directions except the direction perpendicular to the screen surface is restrained, the main vibration spring 2 on each cross arm 31 can vibrate along the direction perpendicular to the screen surface, and finally the screen box 3 can vibrate along the direction perpendicular to the screen surface. By the above, the screen box 3 can vibrate only along the direction vertical to the screen surface through the cylindrical structure and staggered arrangement of the main vibrating spring 2, and a limiter of the anti-resonance vibrating screen in the prior art is not required.
In this embodiment, the transverse main vibrating springs 21 and the longitudinal main vibrating springs 22 are staggered, and the transverse main vibrating springs 21 and the longitudinal main vibrating springs 22 on the same cross arm 31 may be sequentially spaced or randomly staggered, so as to restrict deformation of each other in other directions, i.e. other directions except for the direction perpendicular to the screen surface.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The utility model provides an anti-resonance vibrating screen, its includes vibration excitation body (1), and the top of vibration excitation body (1) is connected with one side of elastomer, and the opposite side of elastomer is connected with sieve case (3), its characterized in that:
the elastomer includes a plurality of main vibrating spring (2), and main vibrating spring (2) are tubular structure, and the axial direction of main vibrating spring (2) is parallel arrangement with the screening surface of screen box (3), and one side on the outer peripheral face of main vibrating spring (2) is connected with vibration exciting body (1), and the opposite side on the outer peripheral face of main vibrating spring (2) is connected with screen box (3), and vibration exciting body (1) and screen box (3) are opposite with respect to main vibrating spring (2) and set up.
2. An anti-resonance vibrating screen according to claim 1, characterized in that the output part of the vibration body (1) is connected with a vibrating table (11), the elastic body is connected with the vibration body (1) through the vibrating table (11), and a plurality of main vibrating springs (2) are connected with the table top of the vibrating table (11).
3. An anti-resonance vibrating screen according to claim 1, characterized in that the bottom of the screen box (3) is provided with a plurality of cross arms (31), the plurality of main vibrating springs (2) are divided into a plurality of groups, and each group of main vibrating springs (2) is correspondingly connected with one cross arm (31).
4. A screen according to claim 3, characterized in that each set of main vibrating springs (2) is divided into a transverse main vibrating spring (21) and a longitudinal main vibrating spring (22), the axial directions of the transverse main vibrating spring (21) and the longitudinal main vibrating spring (22) being arranged perpendicularly.
5. An antiresonant vibrating screen according to claim 4, characterized in that the transverse main vibrating springs (21) and the longitudinal main vibrating springs (22) are staggered.
6. An antiresonant vibrating screen according to claim 1, characterized in that the outer circumferential surface of the main vibrating spring (2) from the direction of the exciting body (1) to the direction of the screen box (3) is arc-shaped.
7. An antiresonant vibrating screen according to claim 6, characterized in that the cross section of the main vibrating spring (2) is circular, elliptical or oblong.
8. An antiresonance shaker as claimed in claim 1, characterized in that the screen box (3) is inclined with one end higher and one end lower.
9. An antiresonance shaker as claimed in claim 1, characterized in that the main shaking springs (2) are rubber metal compound springs or resin-based compound springs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311701123.3A CN117427882A (en) | 2023-12-12 | 2023-12-12 | Anti-resonance vibrating screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311701123.3A CN117427882A (en) | 2023-12-12 | 2023-12-12 | Anti-resonance vibrating screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117427882A true CN117427882A (en) | 2024-01-23 |
Family
ID=89551741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311701123.3A Pending CN117427882A (en) | 2023-12-12 | 2023-12-12 | Anti-resonance vibrating screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117427882A (en) |
-
2023
- 2023-12-12 CN CN202311701123.3A patent/CN117427882A/en active Pending
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