CN108188013B - Vibrating screen with multiple vibrating tracks - Google Patents
Vibrating screen with multiple vibrating tracks Download PDFInfo
- Publication number
- CN108188013B CN108188013B CN201711407025.3A CN201711407025A CN108188013B CN 108188013 B CN108188013 B CN 108188013B CN 201711407025 A CN201711407025 A CN 201711407025A CN 108188013 B CN108188013 B CN 108188013B
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- Prior art keywords
- gear
- screen
- duplex
- screen box
- driven shaft
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- 230000005284 excitation Effects 0.000 claims abstract description 9
- 230000007246 mechanism Effects 0.000 claims description 12
- 238000005096 rolling process Methods 0.000 claims description 10
- 238000012216 screening Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000000475 sunscreen effect Effects 0.000 description 1
- 239000000516 sunscreening agent Substances 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
-
- 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
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention relates to the field of classified screening equipment, in particular to a vibrating screen with multiple vibrating tracks. The two ends of the screen box are fixedly connected with the two second sliding blocks respectively; the screen box is internally provided with a baffle plate which divides the inner cavity of the screen box into an upper chamber and a lower chamber, the lower chamber of the screen box is internally provided with an excitation device, and the upper chamber of the screen box is internally provided with a screen plate. The invention has various vibration tracks, and is convenient to control and adjust in the various vibration tracks to adapt to screening production.
Description
Technical Field
The invention relates to the field of classified screening equipment, in particular to a vibrating screen with multiple vibrating tracks.
Background
The vibrating screen works by utilizing reciprocating rotary vibration generated by vibrator excitation, and the vibration exciter can generate periodically-changed exciting force, so that the vibrating screen is an important core component for realizing functions of the vibrating screen.
Most of the vibration exciters commonly used at present are single motion modes, namely linear, circular and elliptic motion modes. With the increasing demands of people on productivity, single mode vibration exciters cannot meet the production demands.
Disclosure of Invention
The invention aims to provide a vibrating screen which has multiple vibrating tracks and is convenient to control and adjust in the multiple vibrating tracks to adapt to screening production.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a shale shaker with multiple vibration track, including top frame, bottom frame and set up the screen box between top frame and bottom frame, on the opposite face of top frame and bottom frame and be located the both ends of screen box and be equipped with first slide bar respectively, all slide on the first slide bar and be equipped with first slider, be located the top frame of screen box with one end and two first sliders on the bottom frame connect through the second slide bar, slide respectively on two second slide bars and be equipped with the second slider, be located respectively between first slider and the top frame on the first slide bar and overlap respectively and be equipped with first spring, be located respectively between second slider and the first slider on the second slide bar and overlap respectively and be equipped with the second spring, the both ends of screen box are with two second slider fixed connection respectively; the vibrating device comprises a driving shaft and a driven shaft which are parallel to each other, the driving shaft and the driven shaft are respectively fixedly provided with the same first eccentric block, and the driven shaft is provided with a rotatable second eccentric block; a clutch mechanism is arranged between the driving shaft and the driven shaft, the clutch mechanism comprises two identical first gears which are fixedly arranged on the driving shaft at intervals, a duplex gear which is slidably arranged on the driven shaft through a spline structure, a second gear which is fixedly connected with a second eccentric block, and a shifting fork which is used for shifting the duplex gear to slide on the driven shaft, the duplex gear comprises a first duplex gear and a second duplex gear, the first duplex gear can be respectively connected with the two first gears in a meshed manner, and when the first duplex gear is connected with one of the first gears in a meshed manner, the second duplex gear can be connected with the second gear in a meshed manner; a sieve plate is arranged in the upper chamber of the sieve box.
Preferably, supporting seats for fixing two ends of the first sliding rod are respectively arranged on the top frame and the bottom frame; one end of the first spring is fixedly connected with the first sliding block, and the other end of the first spring is fixedly connected with the supporting seat on the corresponding side.
Preferably, the first sliding rod is arranged along the horizontal direction, and the second sliding rod is arranged along the vertical direction.
Preferably, the sieve plate is obliquely arranged, and the included angle between the sieve plate and the horizontal plane is 10-25 degrees; the partition plates are arranged parallel to the sieve plates.
Preferably, the first gear, the first duplex pinion and the second duplex pinion are all external gears, and the second gear is an internal gear.
Preferably, a groove matched with the shifting fork is formed in the middle of the duplex gear along the circumferential direction.
Preferably, the shifting fork is fixedly provided with a handle, and one end of the handle, which is far away from the shifting fork, is arranged outside the screen box through a strip-shaped hole formed in the screen box.
Preferably, one end of the driving shaft is arranged outside the screen box and is connected with a belt pulley.
Preferably, the second eccentric block is connected with the driven shaft through a rolling bearing, an inner ring of the rolling bearing is fixed with the driven shaft, and an outer ring of the rolling bearing is fixed with the second eccentric block.
Preferably, the first eccentric block and the second eccentric block are both semicircular.
Advantageous effects
The invention has simple structure, easy realization and convenient operation. In the excitation device, a driving shaft can be controlled to rotate independently through a clutch mechanism, and vibration of a circular track is realized through centrifugal force generated by a first eccentric block on the driving shaft; the clutch mechanism can control the driving shaft and the driven shaft to rotate together and the second gear idles, so that the vibration of the linear track can be realized; the driving shaft and the driven shaft are controlled to rotate together through the clutch mechanism, and the second gear on the driven shaft is connected with the driving shaft, so that the two identical first eccentric blocks and one eccentric block can generate vibration with elliptical tracks, and the vibration exciting device drives the screen box to perform linear reciprocating, circular reciprocating or elliptical reciprocating vibration, so that the advantages of multiple vibration track modes are integrated, the production efficiency is improved, and the production cost is reduced. The clutch mechanism is realized through a simple shifting fork, and the clutch mechanism is convenient and simple to operate and easy to popularize.
During working, such as coal mining, irregular objects are clamped on a screen mesh during vibration during ore screening, so that production efficiency is affected, and at the moment, the objects can be shaken off by changing the motion trail by using a variable trail vibration exciter. And the safety coefficient is improved without manual participation. The mass of the eccentric block of the vibration exciter designed in the design is variable, so that different eccentric block masses can be obtained, exciting forces with different magnitudes can be obtained, and the amplitude is changed. The utilization efficiency of the vibration exciter is improved.
Drawings
FIG. 1 is a schematic diagram of a front view of the present invention;
FIG. 2 is a left side view of the present invention;
FIG. 3 is a schematic top cross-sectional view of the screen box section of FIG. 1;
the marks in the figure: 1. the device comprises a bottom frame, 2, a screen box, 3, a second sliding block, 4, a second spring, 5, a second sliding rod, 6, a first sliding rod, 7, a supporting seat, 8, a top frame, 9, a screen plate, 10, a partition plate, 11, a first spring, 12, a first sliding block, 13, a first eccentric block, 14, a first gear, 15, a driving shaft, 16, a belt pulley, 17, a rolling bearing, 18, a second eccentric block, 19, a second gear, 20, a bar-shaped hole, 21, a handle, 22, a second double-link gear, 23, a first double-link gear, 24, a shifting fork, 25 and a driven shaft.
Detailed Description
As shown in fig. 1 to 3, the vibrating screen with multiple vibrating tracks according to the present invention includes a top frame 8, a bottom frame 1, and a screen box 2 disposed between the top frame 8 and the bottom frame 1, wherein the top frame 8 and the bottom frame 1 are fixedly connected with other auxiliary bases, and the screen box 2 is movably connected between the top frame 8 and the bottom frame 1, and can vibrate along three vibrating tracks of a straight line, a circle and an ellipse under the action of an excitation device disposed in the screen box 2, so as to complete screening operation.
The two ends of the top frame 8, which are positioned on the bottom surface of the bottom frame 1 and face the bottom frame 1, are respectively provided with first sliding rods 6 which are parallel to each other, the two ends of the bottom frame 1, which are positioned on the top surface of the top frame 8 and face the screen box 2, are respectively provided with first sliding rods 6 which are parallel to each other, the four first sliding rods 6 are respectively provided with first sliding blocks 12 in a sliding manner, the two first sliding blocks 12 positioned on the top frame 8 and the bottom frame 1 at the same end of the screen box 2 are connected through second sliding rods 5, the two second sliding rods 5 are respectively provided with second sliding blocks 3 in a sliding manner, the first sliding rods 6 are respectively provided with first springs 11 in a sleeving manner, the two second sliding blocks 3 and the first sliding blocks 12 are respectively provided with second springs 4 in a sleeving manner, and the two ends of the screen box 2 are respectively fixedly connected with the two second sliding blocks 3. Four first slide bars 6 among them all set up along the horizontal direction, and two second slide bars 5 all set up along vertical direction, can make the sieve case 2 carry out the motion of level and vertical two directions for top frame 8 and bottom frame 1 through the cooperation of first slide bar 6, first slider 12, second slide bar 5 and second slider 3. In the embodiment, supporting seats 7 for fixing two ends of a first sliding rod 6 are respectively arranged on a top frame 8 and a bottom frame 1; one end of the first spring 11 is fixedly connected with the first sliding block 12, and the other end is fixedly connected with the supporting seat 7 at the corresponding side. The first spring 11 and the second spring 4 are in a compressed state, so that hard impact generated by the first sliding block 12 and the second sliding block 3 can be avoided, elastic potential energy can be stored in the vibration process, the amplitude in the vibration process is reduced, the vibration frequency is increased, and the classifying screening of ores or other materials is facilitated.
The inner cavity of the screen box 2 is divided into an upper chamber and a lower chamber by a baffle 10, an included angle between the baffle 10 and a horizontal plane is 10-25 degrees, a screen plate 9 parallel to the baffle 10 is arranged in the upper chamber of the screen box 2, a plurality of screen holes are formed in the screen plate 9 at intervals, a feed inlet is formed in the top end of the screen box 2, and discharge holes are formed in one side, located at the lower end of the screen plate 9 and the lower end of the baffle 10, of the screen box 2. After the material enters the screen box 2 through the feeding device arranged on the top frame 8, under the continuous vibration action of the screen box 2, the large material stays on the sun screen and is discharged from the discharge hole positioned at the lower end of the screen plate 9 on the screen box 2, and the small material falling from the screen holes is discharged from the discharge hole positioned at the lower end of the baffle plate 10 upwards through sun drying.
The vibration of the screen box 2 is realized by an excitation device arranged in the lower chamber of the screen box 2. The excitation device comprises a driving shaft 15 and a driven shaft 25 which are parallel to each other and are all arranged along the horizontal direction, one end of the driving shaft 15 is arranged outside the screen box 2 and is provided with a belt pulley 16, and the driving shaft 15 can be driven to rotate through a belt pulley mechanism by a motor fixed on the screen box 2.
The driving shaft 15 and the driven shaft 25 are respectively fixedly provided with the same semicircular first eccentric block 13, the driven shaft 25 is provided with the rotatable semicircular second eccentric block 18, the second eccentric block 18 is connected with the driven shaft 25 through the rolling bearing 17, the inner ring of the rolling bearing 17 is fixed with the driven shaft 25, and the outer ring of the rolling bearing 17 is fixed with the second eccentric block 18. When the driving shaft 15 rotates independently, the centrifugal force generated by the first eccentric block 13 on the driving shaft 15 can drive the screen box 2 to vibrate in a circular track; when the driving shaft 15 and the driven shaft 25 rotate simultaneously and the second eccentric block 18 on the driven shaft 25 does not rotate, the resultant force of the centrifugal forces generated by the two first eccentric blocks 13 can drive the screen box 2 to vibrate in a linear track; when the driving shaft 15 and the driven shaft 25 rotate simultaneously and the second eccentric block 18 on the driven shaft 25 rotates coaxially with the driven shaft 25, the resultant force of the centrifugal forces of the two first eccentric blocks 13 and the second eccentric block 18 can drive the screen box 2 to vibrate in an elliptical track.
In the invention, the rotation of the first eccentric block 13 and the second eccentric block 18 on the driven shaft 25 is controlled by a clutch mechanism which is isomorphically arranged between the driving shaft 15 and the driven shaft 25. The clutch mechanism comprises two identical first gears 14 fixedly arranged on the driving shaft 15 at intervals, a duplex gear arranged on the driven shaft 25 in a sliding manner through a spline structure, a second gear 19 fixedly connected with the second eccentric block 18 and a shifting fork 24 for shifting the duplex gear to slide on the driven shaft 25, wherein the duplex gear comprises a first duplex sub-gear 23 and a second duplex sub-gear 22, the first duplex sub-gear 23 can be respectively connected with the two first gears 14 in a meshing manner, and when the first duplex sub-gear 23 is connected with one of the first gears 14 in a meshing manner, the second duplex sub-gear 22 can be connected with the second gear 19 in a meshing manner. The first gear 14, the first double sub-gear 23 and the second double sub-gear 22 are all external gears, and the second gear 19 is an internal gear. The middle part of the duplex gear is provided with a groove which is matched with the shifting fork 24 along the circumferential direction. The handle 21 is fixedly arranged on the shifting fork 24, and one end, far away from the shifting fork 24, of the handle 21 is arranged outside the screen box 2 through the strip-shaped hole 20 formed in the screen box 2, so that an operator can conveniently control the vibration track of the invention.
In the vibration process of the linear track, the first duplex pinion 23 is meshed with the first gear 14 on the right side in fig. 1 through the shifting fork 24, at this time, the second duplex pinion 22 is separated from the second gear 19, the driving shaft 15 drives the driven shaft 25 to rotate, and in the rotation process, the centrifugal force generated by the two first eccentric blocks 13 generates resultant force to drive the screen box 2 to vibrate along the linear track.
In the vibration process of the circular track, the first duplex pinion 23 is meshed with neither the first gear 14 nor the second gear 19 through the shifting fork 24, at this time, only the driving shaft 15 rotates, and the screen box 2 is driven to vibrate along the circular track through the centrifugal force generated by the first eccentric block 13 on the driving shaft 15.
In the vibration process of the elliptical track, the first duplex pinion 23 is meshed with the first gear 14 at the left side in fig. 1 through the shifting fork 24, and meanwhile, the second duplex pinion 22 is meshed with the second gear 19, at this time, the driving shaft 15 drives the driven shaft 25 to rotate, and the two first eccentric blocks 13 and one second eccentric block 18 generate centrifugal force, and the centrifugal force generated on the driven shaft 25 is greater than that of the driving shaft 15, so that the screen box 2 can be driven to vibrate along the elliptical track through the first eccentric block 13 and the one second eccentric block 18.
Claims (8)
1. A vibrating screen having a plurality of vibration trajectories, characterized in that: including top frame (8), bottom frame (1) and set up sieve case (2) between top frame (8) and bottom frame (1), and be located on the opposite face of top frame (8) and bottom frame (1) and be equipped with first slide bar (6) respectively at the both ends of sieve case (2), all slide on first slide bar (6) and be equipped with first slider (12), be located between two first sliders (12) on top frame (8) and bottom frame (1) of sieve case (2) same end and be connected through second slide bar (5), slide respectively on two second slide bars (5) and be equipped with second slider (3), be located respectively between first slider (12) and top frame (8) on first slide bar (6) and overlap respectively and be equipped with first spring (11), be located between second slider (3) and first slider (12) on second slide bar (5) respectively be equipped with second spring (4), the both ends of sieve case (2) respectively with two second slider (3) fixed connection, through first slider (6), first slider (12), the second slide bar (5) and the second slide block (3) are matched to enable the screen box (2) to move horizontally and vertically relative to the top frame (8) and the bottom frame (1); the screen box (2) is internally provided with a baffle plate (10) for dividing the inner cavity of the screen box (2) into an upper cavity and a lower cavity, the lower cavity of the screen box (2) is internally provided with an excitation device, the screen box (2) can be driven to perform reciprocating vibration of a linear track, a circular track or an elliptical track through the excitation device, the excitation device comprises a driving shaft (15) and a driven shaft (25) which are parallel to each other, the driving shaft (15) and the driven shaft (25) are respectively fixedly provided with the same first eccentric block (13), and the driven shaft (25) is provided with a rotatable second eccentric block (18); a clutch mechanism is arranged between the driving shaft (15) and the driven shaft (25), the clutch mechanism comprises two identical first gears (14) fixedly arranged on the driving shaft (15) at intervals, a duplex gear arranged on the driven shaft (25) in a sliding manner through a spline structure, a second gear (19) fixedly connected with a second eccentric block (18) and a shifting fork (24) for shifting the duplex gear to slide on the driven shaft (25), the duplex gear comprises a first duplex sub-gear (23) and a second duplex sub-gear (22), the first duplex sub-gear (23) can be respectively connected with the two first gears (14) in a meshing manner, and when the first duplex sub-gear (23) is connected with one of the first gears (14) in a meshing manner, the second duplex sub-gear (22) can be connected with the second gear (19) in a meshing manner; a sieve plate (9) is arranged in the upper chamber of the sieve box (2);
in the reciprocating vibration of the circular track, the shifting fork (24) is used for enabling the first duplex sub-gear (23) to be meshed with neither the first gear (14) nor the second gear (19);
the sieve plate (9) is obliquely arranged, and the included angle between the sieve plate (9) and the horizontal plane is 10-25 degrees; the baffle plate (10) is arranged parallel to the screen plate (9);
the first eccentric block (13) and the second eccentric block (18) are semicircular.
2. A vibrating screen having a plurality of vibration trajectories according to claim 1, wherein: supporting seats (7) for fixing two ends of the first sliding rod (6) are respectively arranged on the top frame (8) and the bottom frame (1); one end of the first spring (11) is fixedly connected with the first sliding block (12), and the other end of the first spring is fixedly connected with the supporting seat (7) at the corresponding side.
3. A vibrating screen having a plurality of vibration trajectories according to claim 1, wherein: the first sliding rod (6) is arranged along the horizontal direction, and the second sliding rod (5) is arranged along the vertical direction.
4. A vibrating screen having a plurality of vibration trajectories according to claim 1, wherein: the first gear (14), the first duplex sub-gear (23) and the second duplex sub-gear (22) are all external gears, and the second gear (19) is an internal gear.
5. A vibrating screen having a plurality of vibration trajectories according to claim 1, wherein: the middle part of duplex gear is equipped with along circumference and is used for with shift fork (24) complex recess.
6. A vibrating screen having a plurality of vibration trajectories according to claim 1, wherein: the shifting fork (24) is fixedly provided with a handle (21), and one end, far away from the shifting fork (24), of the handle (21) is arranged outside the screen box (2) through a strip-shaped hole (20) formed in the screen box (2).
7. A vibrating screen having a plurality of vibration trajectories according to claim 1, wherein: one end of the driving shaft (15) is arranged outside the screen box (2) and is connected with a belt pulley (16).
8. A vibrating screen having a plurality of vibration trajectories according to claim 1, wherein: the second eccentric block (18) is connected with the driven shaft (25) through a rolling bearing (17), the inner ring of the rolling bearing (17) is fixed with the driven shaft (25), and the outer ring of the rolling bearing is fixed with the second eccentric block (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711407025.3A CN108188013B (en) | 2017-12-22 | 2017-12-22 | Vibrating screen with multiple vibrating tracks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711407025.3A CN108188013B (en) | 2017-12-22 | 2017-12-22 | Vibrating screen with multiple vibrating tracks |
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| Publication Number | Publication Date |
|---|---|
| CN108188013A CN108188013A (en) | 2018-06-22 |
| CN108188013B true CN108188013B (en) | 2023-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711407025.3A Active CN108188013B (en) | 2017-12-22 | 2017-12-22 | Vibrating screen with multiple vibrating tracks |
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| CN (1) | CN108188013B (en) |
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| CN109078832A (en) * | 2018-07-03 | 2018-12-25 | 大同新成新材料股份有限公司 | A kind of production system of graphite carbon block |
| CN112642702B (en) * | 2021-01-05 | 2021-09-24 | 中国矿业大学 | High-efficient double-deck multistage shale shaker |
| CN114392915A (en) * | 2022-01-12 | 2022-04-26 | 甘肃旭盛显示科技有限公司 | Vibrating screen device of waste glass chute |
| CN116237240B (en) * | 2023-03-09 | 2023-11-07 | 徐州徐工养护机械有限公司 | Vibrating screen for asphalt mixing plant |
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| Title |
|---|
| 振动筛用多种强迫激振运动激振器几何条件的确定;侯勇俊, 徐倩, 张明洪;机械设计(第02期);45-47 * |
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| Publication number | Publication date |
|---|---|
| CN108188013A (en) | 2018-06-22 |
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Application publication date: 20180622 Assignee: Henan Yingliang New Energy Engineering Co.,Ltd. Assignor: LUOYANG INSTITUTE OF SCIENCE AND TECHNOLOGY Contract record no.: X2024980001592 Denomination of invention: A vibrating screen with multiple vibration trajectories Granted publication date: 20230905 License type: Common License Record date: 20240131 |
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