CN113649264A - Large-scale linear vibrating screen with four-axis vertical force screening inclined screen surface - Google Patents
Large-scale linear vibrating screen with four-axis vertical force screening inclined screen surface Download PDFInfo
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- CN113649264A CN113649264A CN202110933676.6A CN202110933676A CN113649264A CN 113649264 A CN113649264 A CN 113649264A CN 202110933676 A CN202110933676 A CN 202110933676A CN 113649264 A CN113649264 A CN 113649264A
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- Prior art keywords
- shaft type
- vibration exciters
- type vibration
- screening
- screen
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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
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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
- B07B1/42—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
- B07B1/46—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
- B07B1/4663—Multi-layer screening surfaces
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- Combined Means For Separation Of Solids (AREA)
Abstract
The utility model provides a large-scale rectilinear vibrating screen of four-axis vertical force screening slope sifter, belongs to vibration screening machinery, has solved the problem of the large-scale development of rectilinear vibrating screen. The excitation source of the screening machine is shaft type vibration exciters or eccentric block vibration exciters, the number of the shaft type vibration exciters is four, the shaft type vibration exciters are divided into two groups, and each group of the shaft type vibration exciters is connected with a synchronous cog belt wheel through a synchronous cog belt wheel positioned at the shaft end; the two groups of shaft type vibration exciters are respectively and symmetrically arranged at two sides of the gravity center G of the screen frame, and when the screen frame works, the two groups of shaft type vibration exciters rotate oppositely and synchronously run to generate a linear motion track; the resultant line L of the linear motion trajectory is perpendicular to the screening surface. The screening surface comprises 2 ~ 4 layers, and the screening surface inclination alpha =20 ~ 30. One end or two ends of each shaft type vibration exciter are connected with the motor transmission device. The screening machine has the characteristics of good performance, large processing capacity, high screening efficiency, long service life and the like. The screening machine can be applied to screening various materials in the fields of mines, coal mines, road building and life.
Description
Technical Field
The invention belongs to the field of vibrating screening machinery, and mainly relates to a four-axis vertical force screening inclined screen surface large-scale linear vibrating screen which is large in exciting force, strong in bearing capacity, convenient for large-scale development of screening area and high in screening penetration rate.
Background
Most of vibration exciters of the existing grading sieve with the inclined sieve surface are of single-shaft or double-shaft structures, and the movement track of the sieve surface is circular, so that the screening area and the vibration participating weight of the grading sieve with the inclined sieve surface are restricted by the service life of a bearing of the vibration exciters, the large-scale development of the grading sieve is hindered, and the improvement of the processing capacity of the grading sieve is influenced. For the screening of fine particle materials, the ejection force and the penetrating force obtained by the material particles with the circular motion tracks are small, so that the material is blocked in the holes, and the screening efficiency is low. In addition, the distance between the upper and lower layers of the screen surfaces of the existing grading screen with the inclined screen surface is too small, and the vibration exciter and the screen are inconvenient to maintain and replace.
Disclosure of Invention
The invention aims to provide a large linear vibrating screen with an inclined screen surface screened by four-axis vertical force, which has the advantages of large exciting force, strong bearing capacity, convenience for large-scale development of screening area and good screening penetrating performance.
The invention is realized by the following technical scheme, which comprises a screen frame, a screen surface, a vibration exciter, a vibration reduction supporting device and a motor transmission device, and is characterized in that: the excitation source of the screening machine is shaft type vibration exciters or eccentric block vibration exciters, the number of the shaft type vibration exciters is four, the shaft type vibration exciters are divided into two groups, and each group of the shaft type vibration exciters is connected with a synchronous cog belt wheel through a synchronous cog belt wheel positioned at the shaft end; the two groups of shaft type vibration exciters are respectively and symmetrically arranged at two sides of the gravity center G of the screen frame, and when the screen frame works, the two groups of shaft type vibration exciters rotate oppositely and synchronously run to generate a linear motion track; the resultant line L of the linear motion trajectory is perpendicular to the screening surface.
The screening surface comprises 2 ~ 4 layers, and the screening surface inclination alpha =20 ~ 30. The shaft type vibration exciters are arranged in a shaft cover pipe between two side plates of the screen frame, and one end or two ends of each shaft type vibration exciter are connected with a motor transmission device.
The block eccentric vibration exciters are provided with four groups, and each group of two block eccentric vibration exciters are coaxial and are respectively arranged near two side plates of the screen frame; the connection, driving and operation modes of the four groups of eccentric vibration exciters are the same as those of the shaft type vibration exciters.
The linear vibrating screen has the advantages that the linear vibrating screen adopts two groups of four vibrators to synchronously operate, the exciting force is large, the number of bearings is increased, the stress of a single bearing is reduced, the bearing capacity is strong, the service life is long, the large-scale development of the screening area of the screening machine is facilitated, and the processing capacity of the vibrating screen can be increased to a greater extent. In addition, the resultant force line of the linear motion track is vertical to the screen surface, so that the screen does not block holes and has high screening penetration rate for screening fine particles. The screening machine has the characteristics of good performance, large processing capacity, high screening efficiency, long service life and the like. The screening machine can be applied to screening various materials in the fields of mines, coal mines, road building and life.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of FIG. 1;
in the figure, 1 is a screen frame, 2 is a screen surface, 3 is a shaft type vibration exciter I, 4 is a shaft type vibration exciter II, 5 is a shaft type vibration exciter III, 6 is a synchronous toothed belt wheel, 7 is a synchronous toothed belt, 8 is a shaft type vibration exciter IV, 9 is a vibration damping supporting device, and 10 is a motor transmission device; alpha is the inclination angle of the screen surface, beta is the included angle between the resultant line of the linear motion track and the screen surface, L is the resultant line of the linear motion track, and G is the gravity center of the screen frame; the arc arrow indicates the rotation direction of the exciter.
Detailed Description
The following description of the embodiments of the present invention refers to the accompanying drawings:
comprises a screen frame 1, a screen surface 2, a vibration exciter, a vibration reduction supporting device 9 and a motor transmission device 10. The excitation source of the screening machine is composed of four shaft type vibration exciters which are divided into two groups. The shaft type vibration exciter I3 and the shaft type vibration exciter II 4 are in a group, the shaft type vibration exciter III 5 and the shaft type vibration exciter IV 8 are in a group, and each group of shaft type vibration exciters are connected through a synchronous cog belt wheel 6 and a synchronous cog belt 7 which are positioned at the shaft ends. The two groups of shaft type vibration exciters are respectively and symmetrically arranged at two sides of the gravity center G of the screen frame 1, and when the screen frame works, the two groups of shaft type vibration exciters rotate oppositely and synchronously run to generate a linear motion track. The resultant line L of the linear motion tracks is perpendicular to the screen surface 2, i.e. the included angle beta between the resultant line of the linear motion tracks and the screen surface 2 is equal to 90 deg.
The screening surface 2 consists of two layers, the angle of inclination of the screening surface being α =25 °. The shaft type vibration exciters are arranged in a shaft cover pipe between two side plates of the screen frame 1, and one end of each shaft type vibration exciter is connected with a motor transmission device 10.
The block eccentric vibration exciters are four groups, and each two block eccentric vibration exciters are coaxial and are respectively arranged near the two side plates of the screen frame 1; the connection, driving and operation modes of the four groups of eccentric vibration exciters are the same as those of the shaft type vibration exciters.
Claims (4)
1. The utility model provides a large-scale rectilinear vibrating screen of four-axis vertical force screening slope sifter, includes reel (1), sifter (2), vibration exciter, damping strutting arrangement (9) and motor drive (10), characterized by: the excitation source of the screening machine is shaft type vibration exciters or eccentric block vibration exciters, the number of the shaft type vibration exciters is four, the shaft type vibration exciters are divided into two groups, and each group of the shaft type vibration exciters is connected with a synchronous toothed belt wheel (6) and a synchronous toothed belt (7) which are positioned at the shaft ends; the two groups of shaft type vibration exciters are respectively and symmetrically arranged at two sides of the gravity center G of the screen frame (1), and when the screen frame works, the two groups of shaft type vibration exciters rotate oppositely and synchronously run to generate a linear motion track; the resultant line L of the linear motion tracks is perpendicular to the screen surface (2).
2. The large linear vibrating screen with the four-axis vertical force screening inclined screen surface as claimed in claim 1, is characterized in that: the screen surface (2) consists of 2-4 layers, and the inclination angle alpha of the screen surface is = 20-30 degrees.
3. The large linear vibrating screen with the four-axis vertical force screening inclined screen surface as claimed in claim 1, is characterized in that: the shaft type vibration exciters are arranged in a shaft cover pipe between two side plates of the screen frame (1), and one end or two ends of each shaft type vibration exciter are connected with the motor transmission device (10).
4. The large linear vibrating screen with the four-axis vertical force screening inclined screen surface as claimed in claim 1, is characterized in that: the block eccentric vibration exciters are four groups, and each two block eccentric vibration exciters are coaxial and are respectively arranged near two side plates of the screen frame (1); the connection, driving and operation modes of the four groups of eccentric vibration exciters are the same as those of the shaft type vibration exciters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110933676.6A CN113649264A (en) | 2021-08-15 | 2021-08-15 | Large-scale linear vibrating screen with four-axis vertical force screening inclined screen surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110933676.6A CN113649264A (en) | 2021-08-15 | 2021-08-15 | Large-scale linear vibrating screen with four-axis vertical force screening inclined screen surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113649264A true CN113649264A (en) | 2021-11-16 |
Family
ID=78480307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110933676.6A Pending CN113649264A (en) | 2021-08-15 | 2021-08-15 | Large-scale linear vibrating screen with four-axis vertical force screening inclined screen surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113649264A (en) |
-
2021
- 2021-08-15 CN CN202110933676.6A patent/CN113649264A/en active Pending
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