CN116673213A - Anti-blocking medium removing sieve - Google Patents
Anti-blocking medium removing sieve Download PDFInfo
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- CN116673213A CN116673213A CN202310968060.1A CN202310968060A CN116673213A CN 116673213 A CN116673213 A CN 116673213A CN 202310968060 A CN202310968060 A CN 202310968060A CN 116673213 A CN116673213 A CN 116673213A
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- screen box
- sieve
- plate
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- 230000000670 limiting effect Effects 0.000 claims abstract description 34
- 230000005540 biological transmission Effects 0.000 claims description 26
- 238000013016 damping Methods 0.000 claims description 12
- 230000001360 synchronised effect Effects 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- 230000002829 reductive effect Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000012216 screening Methods 0.000 abstract description 11
- 239000003245 coal Substances 0.000 description 23
- 239000000463 material Substances 0.000 description 21
- 238000004519 manufacturing process Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- 230000035939 shock Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 7
- 238000007670 refining Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 238000007873 sieving Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001095 motoneuron effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
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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
-
- 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 application relates to an anti-blocking medium removing sieve, which mainly relates to the technical field of vibrating sieves, and comprises a base, a sieve box fixedly arranged on the base, two groups of vibration exciters arranged at the top of the sieve box, a driving motor arranged at one side of the sieve box and a sieve plate arranged at the inner side of the sieve box; the screen plate comprises two fixed ends, a hydraulic cylinder, two limiting frames, a plurality of transverse plates, a plurality of reset springs, a plurality of vertical plates and guide plates, wherein the fixed ends of the hydraulic cylinder are connected with the screen box, the telescopic direction of the hydraulic cylinder is perpendicular to the ground, the limiting frames are fixedly connected with the telescopic ends of the hydraulic cylinder, the transverse plates are respectively connected with the two limiting frames in a sliding manner along the horizontal direction, the reset springs are arranged in the limiting frames, the two ends of the reset springs are abutted with the two adjacent transverse plates, the vertical plates are vertically arranged below the transverse plates, and the guide plates are fixedly arranged at the two ends of the vertical plates; the limiting frame is in sliding connection with the screen box along the vertical direction, and the guide plate is in sliding connection with the screen box along the horizontal direction. The application has the advantages of automatic blockage removal and high screening efficiency.
Description
Technical Field
The application relates to the technical field of vibrating screens, in particular to an anti-blocking medium removing screen.
Background
The medium-removing sieve is a reciprocating vibrating sieve commonly used in the coal industry and mainly has the functions of coal desliming, coal medium-removing, classification of medium coal, coal slime, coal gangue and other materials, and the like. The medium removing sieve uses an eccentric vibration exciter or a thin oil vibration exciter driven by a motor as a vibration source, and can form exciting force in a single vibration direction, so that materials on a sieve surface are thrown up and jump along a certain elevation angle, and the sieving is completed.
The sieve plate is a main structure which plays a role in sieving materials, and common sieve plates are stainless steel bar joint sieve plates, polyurethane sieve plates, grid sieve plates and the like. The medium removing sieve is generally a steel grid sieve plate with strong bearing capacity and good wear resistance. In the actual operation process, the coal gangue is found to be uneven in size and irregular in shape, so that the coal gangue is easy to be clamped in the sieve holes of the grid sieve plate under the action of exciting force, and the grid sieve plate is blocked. When the screen plate is blocked seriously, the discharging of the material of the medium removing screen is not smooth, and at the moment, the medium removing screen is stopped manually to clear the blockage. This has a great impact on the production efficiency of a coal refining line with high continuous operation requirements.
With respect to the above related technologies, it can be known that the existing medium removal sieve has the defect of easily blocking and affecting the overall production efficiency of the coal production line.
Disclosure of Invention
The application provides an anti-blocking medium removing sieve, which aims to improve the condition that the medium removing sieve is easy to block and improve the overall production efficiency of a coal refining production line.
The application provides an anti-blocking medium removing sieve which adopts the following technical scheme:
an anti-blocking medium removing sieve comprises a base, a sieve box fixedly arranged on the base, two groups of vibration exciters arranged at the top of the sieve box, a driving motor arranged at one side of the sieve box and a sieve plate arranged at the inner side of the sieve box; the screen plate comprises two fixed ends, a hydraulic cylinder, two limiting frames, a plurality of transverse plates, a plurality of reset springs, a plurality of vertical plates and guide plates, wherein the fixed ends of the hydraulic cylinder are connected with the screen box, the telescopic direction of the hydraulic cylinder is perpendicular to the ground, the limiting frames are fixedly connected with the telescopic ends of the hydraulic cylinder, the transverse plates are respectively connected with the two limiting frames in a sliding manner along the horizontal direction, the reset springs are arranged in the limiting frames, the two ends of the reset springs are abutted with the two adjacent transverse plates, the vertical plates are vertically arranged below the transverse plates, and the guide plates are fixedly arranged at the two ends of the vertical plates; the limiting frame is in sliding connection with the screen box along the vertical direction, and the guide plate is in sliding connection with the screen box along the horizontal direction.
Through adopting above-mentioned technical scheme, the base has played the effect of supporting and fixing other part structures, the screen box has played the supporting role to the installation of vibration exciter and sieve, the material of moving on the sieve has played the constraint effect simultaneously, the vibration exciter can produce exciting force under driving motor's effect, the screening work to the material is accomplished to the cooperation sieve, hydraulic cylinder in the sieve can be lifted the riser of connection on the deflector, make it break away from the connection with the diaphragm, sliding connection structure between diaphragm and the spacing frame and the reset spring of installation between the diaphragm make the interval size between the diaphragm can take place periodic variation under the effect of vibration exciter, thereby make the material of jam between the diaphragm break away from in the sieve mesh, automatic clear stifled function after the sieve is blockked up has been realized, the condition that the easy emergence of sieve is blocked has been improved, the holistic production efficiency of coal refining production line is improved.
Optionally, the screen box comprises two wallboards fixedly arranged on the base perpendicular to the ground and a plurality of main beams fixedly connected between the two wallboards along the horizontal plane; and a plurality of rib plates are riveted on the outer side surface of the wallboard.
Through adopting above-mentioned technical scheme, the wallboard of two perpendicular ground mutual parallel arrangement in the screen box is the major structure of equipment screen box, has played the increase screen box structural strength along the girder structure of horizontal direction connection between two wallboards, avoids its function of rocking appearing in the operation in-process.
Optionally, a transmission shaft is arranged on the wallboard in a penetrating manner along the horizontal direction; one end of the transmission shaft is sleeved with a transmission gear and meshed with the guide plate, and the other end of the transmission shaft is sleeved with a belt pulley and is in belt transmission connection with the limit frame; when the hydraulic cylinder is contracted to the limit position, the belt pulley on the limit frame is in meshed transmission connection with the power output shaft of the driving motor.
By adopting the technical scheme, the transmission shaft structure enables the driving motor to be used as a power source for driving the vertical plate to leave the transverse plate, and the vertical plate is driven to leave the transverse plate or return to the initial position, so that the automation degree of the application is further improved, and the manual participation is reduced.
Optionally, a plurality of spacing breach has been seted up to perpendicular to length direction on the riser, spacing breach's opening size reduces along from the top down's direction gradually, a plurality of spacing breach is followed the length direction equidistance of riser distributes and the interval with the interval size of diaphragm equals.
Through adopting above-mentioned technical scheme, a plurality of spacing breach that set up on the riser make overlap joint between diaphragm and the riser change into the joint structure between diaphragm and the riser, have promoted the stability of diaphragm and riser cooperation connection mechanical structure, have positive meaning to promoting screening quality.
Optionally, the base includes a plurality of one end with screen box fixed connection's shock attenuation landing leg and a plurality of along the horizontal direction fixed connection two shock attenuation landing leg between the floorpan.
Through adopting above-mentioned technical scheme, the vibration damping landing leg can reduce the transmission of the exciting force that the vibration exciter produced to ground, has played certain cushioning effect and cushioning effect, and the bottom beam that sets up between even vibration damping landing leg along the horizontal direction can increase the rigidity and the bearing capacity of base.
Optionally, a plurality of connecting plates are arranged between the damping supporting legs and the screen box, and the connecting plates are perpendicular to the upper end surfaces of the screen box and the damping supporting legs.
Through adopting above-mentioned technical scheme, a plurality of connecting plates that set up between shock attenuation landing leg and the sieve case can promote connection structure's stability and shock attenuation landing leg self bearing capacity between shock attenuation landing leg and the sieve case.
Optionally, a receiving plate is arranged between the bottom beams, and the receiving plate is detachably connected with the bottom beams.
Through adopting above-mentioned technical scheme, the effect of accepting plate structure that sets up between the floorpan has played accepting and direction to the material through the screening of sieve, can avoid the material through the screen removal to pollute workshop operational environment, has reduced the operation intensity of manual cleaning.
Optionally, the vibration exciter comprises a rotating shaft penetrating through the screen box and eccentric blocks sleeved at two ends of the rotating shaft; the rotating shaft is connected with the driving motor through a coupler and is rotationally connected with the screen box.
Through adopting above-mentioned technical scheme, the pivot in the vibration exciter has played the moment of torsion that produces driving motor and has transmitted to the eccentric block, makes eccentric block around the pivoted effect, and the centrifugal force that the eccentric block around the pivoted produced is the source of vibration exciter exciting force.
Optionally, a protective shell is sleeved outside the eccentric block.
Through adopting above-mentioned technical scheme, the protective housing that the eccentric block outside cover was established has played the guard action to parts such as eccentric block and pivot epaxial bearing.
Optionally, the vibration exciter further comprises a synchronous gear fixedly sleeved on the rotating shaft; the synchronous gears of the two groups of vibration exciters are meshed with each other.
Through adopting above-mentioned technical scheme, fixed cover is established in the vibration exciter and is made two vibration exciters can synchronous counter-rotation at epaxial synchromesh gear for the excitation force that the eccentric block is on a parallel with the axis direction offsets each other, and the excitation force that is perpendicular to the axis direction overlaps each other, compares in single vibration exciter or asynchronous vibration exciter and has better screening effect and screening efficiency.
In summary, the present application includes at least one of the following beneficial technical effects:
the base in the application has supporting and fixing functions on other parts of structures, the screen box has supporting functions on the installation of the vibration exciter and the screen plate, meanwhile, the vibration exciter has restraining function on the materials moving on the screen plate, the vibration exciter can generate exciting force under the action of the driving motor, the screen plate is matched to complete screening work of the materials, the hydraulic cylinder in the screen plate can lift the vertical plate connected to the guide plate to separate the vertical plate from the transverse plate, the sliding connection structure between the transverse plate and the limiting frame and the reset spring arranged between the transverse plates enable the space between the transverse plates to be periodically changed under the action of the vibration exciter, thus the materials blocked between the transverse plates are separated from the screen holes, the automatic blocking clearing function after the screen plate is blocked is realized, and the aim of improving the condition that the medium-removing screen is easy to block and improving the whole production efficiency of the coal refining production line is achieved;
the transmission shaft structure in the application enables the driving motor to be used as a power source for driving the vertical plate to leave the transverse plate, and the vertical plate is driven to leave the transverse plate or return to the initial position, thereby further improving the automation degree of the application and reducing the manual participation;
according to the vibration exciter, the synchronous gear fixedly sleeved on the rotating shaft enables the two vibration exciters to synchronously and reversely rotate, so that exciting forces of the eccentric blocks in the directions parallel to the axis are mutually offset, exciting forces in the directions perpendicular to the axis are mutually overlapped, and compared with a single vibration exciter or a non-synchronous vibration exciter, the vibration exciter has better screening effect and screening efficiency.
Drawings
Fig. 1 is a schematic structural diagram of an anti-blocking medium-removing sieve according to an embodiment of the present application.
Fig. 2 is a schematic structural view of a base according to an embodiment of the present application.
Fig. 3 is a schematic view of the structure of the screen box in the embodiment of the application.
Fig. 4 is a schematic structural view of a vibration exciter according to an embodiment of the present application.
Fig. 5 is a schematic view of the structure of a screen plate according to an embodiment of the present application.
Reference numerals illustrate: 1. a base; 11. damping support legs; 12. a bottom beam; 13. a receiving plate; 111. a connecting plate; 2. a screen box; 21. a wallboard; 22. a main beam; 23. rib plates; 24. a transmission shaft; 3. a vibration exciter; 31. a rotating shaft; 32. an eccentric block; 33. a protective shell; 34. a synchronizing gear; 4. a driving motor; 5. a sieve plate; 51. a hydraulic cylinder; 52. a limit frame; 53. a cross plate; 54. a return spring; 55. a riser; 56. a guide plate; 551. and a limit notch.
Detailed Description
The present application is described in further detail below with reference to fig. 1-5.
The medium-removing sieve is a reciprocating vibrating sieve commonly used in the coal industry and mainly has the functions of coal desliming, coal medium-removing, classification of medium coal, coal slime, coal gangue and other materials, and the like. The medium removing sieve uses an eccentric vibration exciter or a thin oil vibration exciter driven by a motor as a vibration source, and can form exciting force in a single vibration direction, so that materials on a sieve surface are thrown up and jump along a certain elevation angle, and the sieving is completed. The sieve plate is a main structure which plays a role in sieving materials, and common sieve plates are stainless steel bar joint sieve plates, polyurethane sieve plates, grid sieve plates and the like. The medium removing sieve is generally a steel grid sieve plate with strong bearing capacity and good wear resistance. In the actual operation process, the coal gangue is found to be uneven in size and irregular in shape, so that the coal gangue is easy to be clamped in the sieve holes of the grid sieve plate under the action of exciting force, and the grid sieve plate is blocked. When the screen plate is blocked seriously, the discharging of the material of the medium removing screen is not smooth, and at the moment, the medium removing screen is stopped manually to clear the blockage. This has a great impact on the production efficiency of a coal refining line with high continuous operation requirements. The application provides an anti-blocking medium removing sieve, which aims to improve the condition that the medium removing sieve is easy to block and improve the overall production efficiency of a coal refining production line.
The embodiment of the application discloses an anti-blocking medium removing sieve. Referring to fig. 1, the anti-clogging and medium-removing sieve comprises a base 1, a sieve box 2, a vibration exciter 3, a driving motor 4 and a sieve plate 5. Wherein, base 1 is fixed to be set up on horizontal ground, and screen box 2 fixed mounting is on base 1, and vibration exciter 3 is installed at the top of screen box 2, and driving motor 4 installs in one side of screen box 2 and is connected with the transmission between vibration exciter 3, and screen plate 5 is installed in the position that screen box 2 inboard is close to base 1. The vibration exciter 3 can generate exciting force under the driving action of the driving motor 4 to drive the sieve plate 5 to reciprocate in a linear motion towards a fixed direction, so that the screening of materials is realized.
Referring to fig. 1 and 2, the base 1 includes shock-absorbing legs 11 and a bottom beam 12. The shock-absorbing leg 11 comprises a supporting leg, a shock-absorbing spring, a damper and other structures. One end of the damping support leg 11 is fixed on the horizontal ground, the other end of the damping support leg 11 is fixedly connected with the screen box 2, and a plurality of connecting plates 111 are vertically connected with the top surface of the damping support leg 11 and the side wall of the screen box 2. The connection plate 111 may be a right triangle-shaped metal sheet. The plurality of connection plates 111 are disposed in parallel with each other at equal intervals. The number of shock absorbing legs 11 is four. A bottom beam 12 is fixedly connected between the two shock absorbing legs 11 on the same side along a direction parallel to the horizontal plane. The bottom beam 12 may be a hollow metal box beam having a rectangular cross section. The bottom beams 12 are connected by clamping or bolts with a bearing plate 13. The bearing plate 13 is positioned below the sieve plate 5 and plays a role in bearing the materials screened by the sieve plate 5.
Referring to fig. 1 and 3, the screen box 2 includes wall panels 21, main beams 22, rib plates 23, and a drive shaft 24. Wherein the number of wall panels 21 is two. The two wall panels 21 are arranged parallel to each other and fixedly connected to the top of the shock absorbing leg 11. The main beams 22 are fixedly connected to the inner sides of the two wallboards 21 in a bolt connection mode. The axis of the main beam 22 is disposed parallel to the horizontal plane. The main beams 22 may be hollow cylindrical beams having a circular cross section. The outer side surface of the wallboard 21 is obliquely provided with a plurality of rib plates 23. The rib plates 23 and the wall plates 21 are fixed in a riveting mode. The bottom of the screen box 2 is provided with a transmission shaft 24 in a penetrating way along the direction parallel to the horizontal plane, one end of the transmission shaft 24 positioned at the inner side of the screen box 2 is sleeved with a gear, and one end of the transmission shaft 24 positioned at the outer side of the screen box 2 is sleeved with a belt pulley. The transmission shaft 24 is rotatably connected with the screen box 2.
Referring to fig. 1 and 4, the exciter 3 includes a rotating shaft 31, an eccentric block 32, a protective housing 33, and a synchronizing gear 34. The rotary shaft 31 is penetrated on the screen box 2 along the direction parallel to the horizontal plane and is rotatably connected with the screen box 2. Eccentric blocks 32 are symmetrically sleeved at two ends of the rotating shaft 31. The eccentric block 32 may be a solid metal block in the shape of a fan fixedly sleeved on the rotating shaft 31. The outer side of the eccentric block 32 is covered with a protective shell 33 by means of bolting. The rotating shaft 31 is also sleeved with a synchronous gear 34. The vibration exciters 3 are arranged in two groups. The synchronizing gears 34 of the two sets of vibration exciters 3 are meshed with each other. The rotating shaft 31 of one group of vibration exciter 3 is connected with the power output shaft of the driving motor 4 through a coupling.
Referring to fig. 1 and 5, the screen panel 5 includes a hydraulic cylinder 51, a stopper frame 52, a cross plate 53, a return spring 54, a riser 55, and a guide plate 56. The cross plate 53 is a rectangular long metal plate. The riser 55 is a long strip of metal having a width greater than the cross plate 53. The vertical plate 55 and the vertical plate 55 are provided with limiting notches 551. The size of the opening of the limiting notch 551 is gradually increased along the direction away from the ground. The number of the limiting notches 551 is multiple, and the spacing of the limiting notches 551 on the vertical plate 55 is the same. The transverse plates 53 are arranged in parallel and are clamped in the limiting notches 551 on the vertical plates 55. Two ends of the transverse plate 53 are respectively sleeved with a limiting frame 52. The limiting frame 52 is slidingly connected with the wall plate 21 of the screen box 2 along the direction vertical to the ground. The transverse plates 53 are slidably connected with the limiting frames 52, and a return spring 54 is arranged between two adjacent transverse plates 53. The spacing between the transverse plates 53 is identical to the spacing between two adjacent limiting notches 551 on the vertical plate 55. Two ends of each vertical plate 55 are fixedly connected with a guide plate 56, and the guide plates 56 connect a plurality of vertical plates 55 into a fixed whole. The guide plate 56 is slidably connected to the inner wall of the wall plate 21 of the screen box 2 in a direction parallel to the horizontal plane. The lower surface of the guide plate 56 is provided with a rack in a direction parallel to the length of the riser 55. The rack gear intermeshes with a gear mounted on the drive shaft 24 inboard of the screen box 2. A hydraulic cylinder 51 is mounted at the head and tail ends of each limiting frame 52. The fixed end of the hydraulic cylinder 51 is connected to the side wall of the screen box 2, and the telescopic end of the hydraulic cylinder 51 is fixedly connected with the upper surface of the limiting frame 52 vertically. The limiting frame 52 is arranged on the wallboard 21 of the screen box 2 in a penetrating way, a belt pulley is arranged on the part of the limiting frame 52 located outside the screen box 2, and the belt pulley is coaxially and fixedly connected with a gear. The belt pulley on the limit frame 52 is connected with the belt pulley on the transmission shaft 24 through a belt transmission. When the hydraulic cylinder 51 is in an extended state, the belt is in a relaxed state, and when the hydraulic cylinder 51 is contracted to an extreme position, the belt is tensioned. The gear coaxially arranged on the limiting frame 52 and the belt pulley can be meshed with the synchronous gear 34 connected with the power output shaft of the driving motor 4 to realize transmission.
The implementation principle of the anti-blocking medium-removing sieve provided by the embodiment of the application is as follows: the material gets into sieve case 2 from the one end of sieve 5, and the vibration exciter 3 of direct drive connection with driving motor 4 rotates under driving motor 4's drive and produces exciting force to the synchronous reverse rotation of another group of vibration exciter 3 of structure drive through synchromesh 34 meshing realizes better vibration and screening effect.
When the screen plate 5 is blocked, the operator only needs to operate the hydraulic cylinder 51 to lift the limiting frame 52, and the transverse plate 53 is lifted along with the limiting frame 52. When the hydraulic cylinder 51 is contracted to the limit position, the gear installed at the outer side of the screen box 2 of the limit frame 52 is engaged with the synchronizing gear 34 of the vibration exciter 3 directly connected to the driving motor 4. At this time, the torque of the driving motor 4 is transmitted to the gear on the limiting frame 52 through the synchronous gear 34, and then the gear on the limiting frame 52 is transmitted to the belt pulley which is coaxially and fixedly connected. The pulley on the stop frame 52 transmits torque to the drive shaft 24 via a belt. The gear of the transmission shaft 24 located inside the screen box 2 rotates to push the rack and the guide plate 56 fixedly connected with the rack out of the inside of the screen box 2 until the rack is disengaged from the gear of the transmission shaft 24 located inside the screen box 2, and the guide plate 56 stops moving. The transverse plates 53 at this time lack of the limit of the vertical plates 55, the space between the transverse plates 53 can periodically shake under the action of the exciting force of the exciter 3, and the materials clamped between the transverse plates 53 can drop down, and the materials blocking the screen plate 5 can finally drop on the receiving plate 13 because the vertical plates 55 move to the outer side of the screen box 2 at this time. After the blockage is cleared, the driving motor 4 is only operated to turn over, the vertical plate 55 is returned to the original position again, and the hydraulic cylinder 51 is operated to clamp and fix the transverse plate 53 and the vertical plate 55 again.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (10)
1. An anti-blocking medium removing sieve is characterized in that: comprises a base (1), a screen box (2) fixedly arranged on the base (1), two groups of vibration exciters (3) arranged at the top of the screen box (2), a driving motor (4) arranged at one side of the screen box (2) and a screen plate (5) arranged at the inner side of the screen box (2); the screen plate (5) comprises two fixed ends, a hydraulic cylinder (51), two limiting frames (52), a plurality of transverse plates (53), a plurality of reset springs (54), a plurality of vertical plates (55) and guide plates (56), wherein the fixed ends of the hydraulic cylinder (51) are connected with the screen box (2), the telescopic directions of the hydraulic cylinder are perpendicular to the ground, the limiting frames (52) are fixedly connected with the telescopic ends of the hydraulic cylinder (51), the transverse plates (53) are respectively connected with the limiting frames (52) in a sliding mode along the horizontal direction, the reset springs (54) are arranged in the limiting frames (52) and the two ends of the reset springs are abutted with the two adjacent transverse plates (53), and the vertical plates (55) are vertically arranged below the transverse plates (53) and the guide plates (56) are fixedly arranged at the two ends of the vertical plates (55); the limiting frame (52) is in sliding connection with the screen box (2) along the vertical direction, and the guide plate (56) is in sliding connection with the screen box (2) along the horizontal direction.
2. An anti-clogging and media-removing screen as claimed in claim 1, wherein: the screen box (2) comprises two wallboards (21) which are fixedly arranged on the base (1) and are perpendicular to the ground, and a plurality of main beams (22) which are fixedly connected between the two wallboards (21) along the horizontal plane; the outer side surface of the wallboard (21) is riveted with a plurality of rib plates (23).
3. An anti-clogging and media-removing screen as claimed in claim 2, wherein: a transmission shaft (24) is arranged on the wallboard (21) in a penetrating way along the horizontal direction; one end of the transmission shaft (24) is sleeved with a transmission gear and meshed with the guide plate (56), and the other end of the transmission shaft (24) is sleeved with a belt pulley and is in belt transmission connection with the limit frame (52); when the hydraulic cylinder (51) is contracted to the limit position, a belt pulley on the limit frame (52) is in meshed transmission connection with the power output shaft of the driving motor (4).
4. An anti-clogging and media-removing screen as claimed in claim 1, wherein: a plurality of limit gaps (551) are formed in the vertical plate (55) perpendicular to the length direction, the opening size of the limit gaps (551) is gradually reduced along the direction from top to bottom, and the limit gaps (551) are distributed at equal intervals along the length direction of the vertical plate (55) and are equal to the interval of the transverse plates (53).
5. An anti-clogging and media-removing screen as claimed in claim 1, wherein: the base (1) comprises a plurality of damping supporting legs (11) with one ends fixedly connected with the screen box (2) and a plurality of bottom beams (12) fixedly connected between the two damping supporting legs (11) along the horizontal direction.
6. The anti-clogging and medium-removing sieve as claimed in claim 5, wherein: a plurality of connecting plates (111) are arranged between the damping supporting legs (11) and the screen box (2), and the connecting plates (111) are perpendicular to the upper end faces of the screen box (2) and the damping supporting legs (11).
7. The anti-clogging and medium-removing sieve as claimed in claim 5, wherein: a bearing plate (13) is arranged between the bottom beams (12), and the bearing plate (13) is detachably connected with the bottom beams (12).
8. An anti-clogging and media-removing screen as claimed in claim 1, wherein: the vibration exciter (3) comprises a rotating shaft (31) penetrating through the screen box (2) and eccentric blocks (32) sleeved at two ends of the rotating shaft (31); the rotating shaft (31) is connected with the driving motor (4) through a coupling and is rotationally connected with the screen box (2).
9. The anti-clogging and media-removing screen of claim 8 wherein: and a protective shell (33) is sleeved outside the eccentric block (32).
10. The anti-clogging and media-removing screen of claim 8 wherein: the vibration exciter (3) further comprises a synchronous gear (34) fixedly sleeved on the rotating shaft (31); the synchronous gears (34) of the two groups of vibration exciters (3) are meshed with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310968060.1A CN116673213B (en) | 2023-08-03 | 2023-08-03 | Anti-blocking medium removing sieve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310968060.1A CN116673213B (en) | 2023-08-03 | 2023-08-03 | Anti-blocking medium removing sieve |
Publications (2)
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