CN110605236B - Double-rocker self-balancing elastic driving type relaxation sieve - Google Patents
Double-rocker self-balancing elastic driving type relaxation sieve Download PDFInfo
- Publication number
- CN110605236B CN110605236B CN201910998672.9A CN201910998672A CN110605236B CN 110605236 B CN110605236 B CN 110605236B CN 201910998672 A CN201910998672 A CN 201910998672A CN 110605236 B CN110605236 B CN 110605236B
- Authority
- CN
- China
- Prior art keywords
- rocker
- eccentric
- frame
- double
- screen frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 230000000149 penetrating effect Effects 0.000 claims description 10
- 230000009977 dual effect Effects 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 6
- 230000033001 locomotion Effects 0.000 abstract description 11
- 238000009434 installation Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 238000012216 screening Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- 210000002706 plastid Anatomy 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000005406 washing Methods 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 discloses a double-rocker self-balancing elastic driving type relaxation sieve, which comprises a frame, an inner sieve frame, an outer sieve frame, a motor, a rotating shaft, a connecting rod and a double-rocker supporting device, wherein the motor is arranged on the frame, the motor is connected with the rotating shaft through a belt transmission mechanism, the rotating shaft is arranged at the top end of the inner sieve frame, two sections of crankshafts are symmetrically arranged at two ends of the rotating shaft, the crankshafts are connected onto the outer sieve frame through the connecting rod, the inner sieve frame is sleeved in the outer sieve frame, the double-rocker supporting device is arranged on the frame, an upper rocker of the double-rocker supporting device is connected onto the inner sieve frame, a lower rocker of the double-rocker supporting device is connected onto the outer sieve frame, and a sieve plate is arranged on the inner sieve frame. The screen machine has the advantages of simple and compact structure, low installation height, capability of performing opposite-phase linear reciprocating motion on the inner screen frame and the outer screen frame, small foundation dynamic load, low energy consumption and adjustable amplitude, and the swing bearing and the double-rocker supporting device eliminate mechanical motion noise in the relaxation motion process of the elastic screen plate, so that the working comfort of on-site workers is greatly improved.
Description
Technical Field
The invention relates to the technical field of screening machinery, in particular to a double-rocker self-balancing elastic driving type relaxation screen.
Background
The relaxation sieve well solves the difficult problem of dry deep screening of the viscous wet fine material, simplifies the process flow in the fields of metallurgy, coal washing, solid waste sorting and the like, reduces the processing cost and has very important significance on energy conservation and emission reduction.
At present, there are two main types of relaxation screens at home and abroad: a shearing spring and a floating screen frame are additionally arranged on the basis of a circular vibrating screen and a linear vibrating screen, the main floating screen frame generates relative motion under the action of exciting force of a vibration exciter, the vibrating relaxation screen generally works at the left side of an antiresonance point, the inner screen frame and the outer screen frame move in the same phase, the relaxation motion is caused by the speed difference of the inner screen frame and the outer screen frame, the relaxation screen is complex in structure, more in parts and larger in energy consumption. The other is LIWELL relaxation sieve produced by HEIN LEHMANN Germany, the relaxation sieve utilizes a crank-link mechanism to drive an inner screen frame and an outer screen frame to do relative movement with a phase difference of 180 degrees, the structure is simpler, the energy consumption is lower, but the key components of the sieve are as follows: the push-pull rod spring and the supporting guide spring are special in material and not easy to obtain, so that the LIWELL relaxation sieve mainly depends on import and is high in price.
Disclosure of Invention
The invention aims to provide a double rocker self-balancing elastic driving type relaxation sieve, which solves the problems of the prior art, and has the advantages of simple and compact structure, good performance, low installation height, small foundation dynamic load, low energy consumption and low installation power.
In order to achieve the above object, the present invention provides the following solutions:
The invention provides a double-rocker self-balancing elastic driving type relaxation sieve which comprises a frame, an inner sieve frame, an outer sieve frame, a motor, a rotating shaft, a connecting rod and a double-rocker supporting device, wherein the motor is arranged on the frame, the motor is connected with the rotating shaft through a belt transmission mechanism, the rotating shaft is arranged at the top end of the inner sieve frame, two sections of crankshafts are symmetrically arranged at two ends of the rotating shaft, the crankshafts are connected onto the outer sieve frame through the connecting rod, the inner sieve frame is sleeved in the outer sieve frame, the double-rocker supporting device is arranged on the frame, an upper rocker arm of the double-rocker supporting device is connected onto the inner sieve frame, a lower rocker arm of the double-rocker supporting device is connected onto the outer sieve frame, and a sieve plate is arranged on the inner sieve frame.
Preferably, the double-rocker supporting device comprises an upper rocker arm, a lower rocker arm and a supporting seat, wherein the supporting seat is fixed on the frame, a through hole is formed in the top of the supporting seat, a square shaft is arranged in the through hole in a penetrating mode, a rubber block is arranged between the square shaft and the through hole, a rocker is arranged on the square shaft in a penetrating mode, the two ends of the rocker are provided with the upper rocker arm and the lower rocker arm, the upper rocker arm and the lower rocker arm are both square shafts, a mounting flange is arranged at one end of the upper rocker arm and one end of the lower rocker arm, and the other ends of the upper rocker arm and the lower rocker arm are arranged in the through holes at the two ends of the rocker arms in a penetrating mode.
Preferably, the rack is obliquely arranged, an oblique feeding plate is arranged at the top end of the inner screen frame, and a discharging plate is arranged at the bottom end of the inner screen frame; the bottom of interior reel with the bottom of outer reel all is provided with a plurality of crossbeam, just the upper surface of crossbeam is located the coplanar.
Preferably, the rotating shaft is connected to the top end of the inner screen frame through a bearing and a bearing seat, and a swinging bearing is arranged between the connecting rod and the outer screen frame.
Preferably, the two sides of the sieve plate are fixed between the side pressing plate and the sealing plate through bolts, and the sealing plate is connected with the inner sieve frame through a buckle.
Preferably, the belt transmission mechanism comprises a belt pulley, an eccentric belt pulley and a V-shaped belt, wherein the belt pulley is connected with a main shaft of the motor, the eccentric belt pulley is arranged on the rotating shaft, and the belt pulley is connected with the eccentric belt pulley through the V-shaped belt.
Preferably, the crankshaft is an eccentricity adjustable device.
Preferably, the eccentric distance adjustable device comprises an eccentric stepped shaft and an eccentric shaft sleeve, wherein eccentric shafts are arranged on two sides of the eccentric stepped shaft, a plurality of key grooves are uniformly distributed on the eccentric shafts, and the eccentric shaft sleeve is matched with any key groove of the eccentric shafts through keys.
Preferably, the eccentric distance adjusting device comprises a central shaft, an outer eccentric sleeve and an inner eccentric sleeve, wherein the inner eccentric sleeve is connected with the central shaft through a key, the inner eccentric sleeve is sleeved in the outer eccentric sleeve, and the inner eccentric sleeve is connected with one end of the outer eccentric sleeve through a flange plate and a bolt.
Preferably, one ends of the inner eccentric sleeve and the outer eccentric sleeve are respectively provided with a flange plate, a plurality of bolt holes are uniformly distributed on the flange plates, and the inner eccentric sleeve and the outer eccentric sleeve can mutually rotate.
Compared with the prior art, the invention has the following technical effects:
The screen machine has the advantages of simple and compact structure, lower installation height, capability of linearly reciprocating in opposite phase, small foundation dynamic load, low energy consumption and low installation power, and can be used for the inner screen frame and the outer screen frame; the swinging bearing and the double rocker arm supporting device eliminate mechanical movement noise except friction noise with materials in the relaxation movement process of the elastic sieve plate, and greatly improve the working comfort level of field staff; the eccentric distance adjustable device can simply and effectively adjust the amplitude of the screen, so that the screen can process materials with different properties; the method is suitable for deep dry screening in industries such as metallurgy, coal, solid waste and the like, and is also suitable for light industry such as grains, tobacco and the like with higher requirements on noise, foundation dynamic load and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a dual rocker self-balancing spring driven flip-flow screen of the present invention;
FIG. 2 is a schematic view of the structure of the inner screen frame according to the present invention;
FIG. 3 is a schematic view of the structure of the outer screen frame according to the present invention;
FIG. 4 is an enlarged schematic view of a portion of the structure of FIG. 3A in accordance with the present invention;
FIG. 5 is a schematic diagram of a structure of a shaft and a connecting rod according to the present invention;
FIG. 6 is a second schematic structural view of the shaft and the connecting rod according to the present invention;
FIG. 7 is a schematic view of a partial structure of a double rocker self-balancing spring driven flip-flow screen of the present invention;
FIG. 8 is an enlarged schematic view of a portion of the structure of FIG. 3B in accordance with the present invention;
FIG. 9 is a schematic view of a dual rocker arm support apparatus according to the present invention;
FIG. 10 is a schematic view of an eccentric stepped shaft in a first eccentricity-adjustable device according to the present invention;
FIG. 11 is a schematic diagram showing a second structure of an eccentric stepped shaft in the first eccentricity-adjustable device of the present invention;
FIG. 12 is a schematic view showing the structure of an eccentric sleeve in the first eccentricity-adjustable apparatus of the present invention;
FIG. 13 is a schematic diagram showing a first embodiment of an eccentricity-adjustable device according to the present invention;
FIG. 14 is a second schematic diagram showing a first eccentricity-adjustable device according to the present invention;
FIG. 15 is a third schematic view showing a first eccentricity-adjustable apparatus according to the present invention;
FIG. 16 is a schematic view showing the structure of a second eccentricity-adjustable device according to the present invention;
FIG. 17 is a schematic view showing the assembly of the inner and outer eccentric sleeves in the second eccentricity-adjustable apparatus of the present invention;
Wherein: 1-rotating shaft, 2-V-shaped belt, 3-motor, 4-belt pulley, 5-inner screen frame, 6-outer screen frame, 7-double rocker arm supporting device, 8-screen plate, 9-side pressing plate, 10-frame, 11-mounting flange, 12-square shaft, 13-rocker, 14-rubber rod, 15-supporting seat, 16-eccentric belt pulley, 17-connecting rod, 18-bearing seat, 19-clamping sleeve, 20-swing bearing, 21-eccentric stepped shaft, 22-eccentric shaft sleeve, 23-central shaft, 24-outer eccentric sleeve, 25-inner eccentric sleeve, 26-clamping groove, 27-T-shaped clamping piece, 28-feeding plate, 29-discharging plate, 30-cross beam and 31-sealing plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by a person skilled in the art based on the embodiments of the invention without any inventive effort, are intended to fall within the scope of the invention.
The invention aims to provide a double rocker self-balancing elastic driving type relaxation sieve, which solves the problems in the prior art, and has the advantages of simple and compact structure, good performance, low installation height, small foundation dynamic load, low energy consumption and low installation power.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
As shown in fig. 1 to 17: the embodiment provides a double rocker self-balancing elastic driving type relaxation sieve, which comprises a frame 10, an inner screen frame 5, an outer screen frame 6, a motor 3, a rotating shaft 1, a connecting rod 17 and a double rocker supporting device 7, wherein the motor 3 is arranged on the frame 10, the motor 3 is connected with the rotating shaft 1 through a belt transmission mechanism, the belt transmission mechanism comprises a belt pulley, an eccentric belt pulley 16 and a V-shaped belt 2, the belt pulley 4 is connected with a main shaft of the motor 3, the eccentric belt pulley 16 is arranged on the rotating shaft 1, and the belt pulley 4 and the eccentric belt pulley 16 are connected through the V-shaped belt 2. The pivot 1 sets up in the top of interior reel 5, and the both ends symmetry of pivot 1 is provided with one section bent axle, and the bent axle passes through connecting rod 17 to be connected on outer reel 6, and interior reel 5 cover is located in the outer reel 6, and two rocking arm strutting arrangement 7 set up on frame 10, and the last rocking arm of two rocking arm strutting arrangement 7 is connected on interior reel 5, and the lower rocking arm of two rocking arm strutting arrangement 7 is connected on outer reel 6, is provided with screen plate 8 on the interior reel 5. The frame 10 is inclined, the top of the inner screen frame 5 is provided with an inclined feeding plate 28, and the bottom of the inner screen frame 5 is provided with a discharging plate 29. The bottoms of the inner screen frame 5 and the outer screen frame 6 are provided with a plurality of cross beams 30, the cross beams 30 of the inner screen frame 5 and the outer screen frame 6 are arranged in a staggered mode, and the upper surfaces of the cross beams 30 are located in the same plane.
The double-rocker supporting device 7 comprises an upper rocker arm, a lower rocker arm and a supporting seat 15, wherein the supporting seat 15 is fixed on the frame 10, a through hole is formed in the top of the supporting seat 15, a square shaft 12 is arranged in the through hole in a penetrating mode, a rubber block is arranged between the square shaft 12 and the through hole, a rocker 13 is arranged on the square shaft 12 in a penetrating mode, an upper rocker arm and a lower rocker arm are arranged at two ends of the rocker 13, the upper rocker arm and the lower rocker arm are both a square shaft 12, mounting flanges 11 are arranged at one ends of the upper rocker arm and one end of the lower rocker arm, and the other ends of the upper rocker arm and the lower rocker arm are arranged in the through holes at two ends of the rocker 13 in a penetrating mode. In this embodiment, the included angle between any surface of the square shaft 12 and the inner surface of the square hole of the column body is 45 °, and four corners between the square shaft 12 and the through hole are filled with rubber rods 14, so that elastic torsion can be realized. The swing bearing 20 is arranged in a detachable clamping sleeve 19 at the end part of the clamping connecting rod 17, a gap of 1-2mm is reserved between the clamping sleeve 19 with a threaded hole and the connecting rod 17, so that the swing bearing 20 is clamped under the action of a screw, and relative movement between the clamping sleeve 19 and the connecting rod 17 is avoided; the mounting flange 11 of the swing bearing 20 and the outer screen frame 6 are fixed through bolts, and the swing bearing 20 not only can transmit the push-pull acting force of the connecting rod 17, but also can provide a certain swing angle for the connecting rod 17, so that the connecting rod 17 is not easy to damage.
The double rocker arm supporting device 7 not only can enable the inner and outer screen frames 6 to swing around the square shaft 12 in the middle of the rocker 13, but also can isolate the movable part from the frame 10 through the rubber rod 14 to play a role of a vibration isolation spring, and the rubber rod 14 around the square shaft 12 is compressed and deformed to generate restoring force when in swing so as to be beneficial to the back swing of the inner and outer screen frames 6, so that the noise of the existing crank connecting rod type relaxation screen is greatly improved; when the rocker 13 swings around the middle square shaft 12, the inner screen frame 5 and the outer screen frame 6 move in opposite directions, so that the inertial force generated by the inner screen frame 5 and the outer screen frame 6 is opposite, when the masses of two plastids are equal, and the distances from the middle square shaft 12 to the upper hole and the lower hole of the rocker 13 are equal, the inertial force can be balanced, and if the masses of the two plastids are unequal, the inertial force can be calculated according to a centrifugal inertial force formula: m 1ω2r1＝m2ω2r2, the inertial forces of the two masses are balanced by adjusting the position of the intermediate shaft 12 of the rocker 13.
The rotating shaft 1 is connected to the top end of the inner screen frame 5 through a bearing and a bearing seat 18, and a swinging bearing 20 is arranged between the connecting rod 17 and the outer screen frame 6. The rotating shaft 1 of the embodiment is a stepped eccentric shaft, the shaft neck of the installation connecting rod 17 and the shaft head of the installation eccentric belt wheel 16 are equidistant eccentric on the same side, and the bearing is a self-aligning roller bearing. The straight shaft section and the crank shaft section of the rotating shaft 1 are respectively symmetrically provided with a self-aligning roller bearing, the self-aligning roller bearing of the straight shaft section is matched with a bearing seat 18 and a labyrinth cover to be installed on the inner screen frame 5, the self-aligning roller bearing of the crank shaft section is matched with a connecting rod 17 and a bearing gland to be connected on the outer screen frame 6, two sides of the two self-aligning roller bearings are respectively provided with a round nut, the round nuts and the labyrinth cover are matched with the inner ring of the self-aligning roller bearing to axially position, and the bearing gland fixes the outer ring of the bearing in the bearing seat 18 and the clamping connecting rod 17 under the action of screws. The eccentric belt wheel 16 and the rotating shaft 1 are connected by a key to transmit torque, and the eccentric belt wheel 16 and the crankshaft have the same eccentric distance, so that the eccentric belt wheel 16 is prevented from being subjected to centrifugal acting force; the bearing seat 18 and the upper and lower sides of the connecting rod 17 are respectively provided with an oil injection cup, the oil injection cup at the upper side is mainly used for injecting oil, and the oil injection cup 21 at the lower side is used for discharging lubricating oil which is invalid after long-time running and abrasion; the shaft end protecting cover is installed on a connecting rod 17 different from the eccentric belt wheel 16 side to isolate the rotating shaft 1 rotating at high speed from the outside.
The two sides of the sieve plate 8 are fixed between the side pressing plate 9 and the sealing plate 31 through bolts, and the sealing plate 31 is connected with the inner sieve frame 5 through buckles. The buckle of this embodiment includes a clamping groove 26 and a T-shaped clamping piece 27, the T-shaped clamping piece 27 is disposed on a sealing plate 31, and the clamping groove 26 is disposed on the inner screen frame 5. The side plates and the cross beams 30 of the inner screen frame 5 and the outer screen frame 6 are formed by bending stainless steel plates, and common steel plates or channel steel can be used to increase the bearing capacity of the screen plate 8. The end parts of the inner screen frame 5 are welded with flanges and are connected with side plates 29 of the inner screen frame 5 by bolts, a plurality of bolt holes are symmetrically formed in the upper surface of a beam 30 of the inner screen frame 5 and are used for installing a screen plate 8 made of elastic materials, and the beam 30 of the inner screen frame 5 and the beam 30 of the outer screen frame 6 are bent and opened towards the discharge end, so that the material is not easy to be stored in the material screening process; the side plates of the outer screen frame 6 are connected with the cross beam 30 through bolts, and a round tube is welded between the cross beam 30 of the outer screen frame 6 and the mounting flange 11, so that the upper surfaces of the cross beam 30 of the inner screen frame 5 and the outer screen frame 6 are on the same plane.
The crankshaft is an eccentricity-adjustable device, and the eccentricity-adjustable device in the embodiment comprises two types. The first eccentricity adjustable device comprises an eccentric stepped shaft 21 and an eccentric shaft sleeve 22, wherein eccentric shafts are arranged on two sides of the eccentric stepped shaft 21, a plurality of key grooves are uniformly distributed on the eccentric shafts, and the eccentric shaft sleeve 22 is matched with any key groove of the eccentric shafts through keys and is used for adjusting proper eccentricity.
The first eccentricity-adjustable device is an eccentric shaft eccentric sleeve amplitude-adjusting device, the structure of the eccentric stepped shaft 21 is as shown in fig. 10 to 11, O 1 is the rotation center of the eccentric stepped shaft 21, O 2 is the center of the eccentric section of the eccentric stepped shaft 21, the eccentricity is a 1, and four key grooves perpendicular to each other are formed in the end part of the eccentric stepped shaft 21 in the embodiment. The eccentric sleeve structure is shown in fig. 12, wherein O 2 is the center of the inner ring of the eccentric sleeve, O3 is the center of the outer ring of the eccentric sleeve, and the eccentricity is A 2.
The working principle of the eccentric shaft eccentric sleeve amplitude modulation device is as follows: as shown in fig. 13, when the key groove above the eccentric sleeve and the eccentric stepped shaft 21 is engaged, when a 1 is equal to a 2, the center O 3 of the outer ring of the eccentric sleeve and the rotation center O 1 of the eccentric stepped shaft 21 overlap, and at this time, the eccentricity of the eccentric sleeve and the eccentric stepped shaft 21 as a whole is 0, and the eccentric is not eccentric. As shown in fig. 14, when the eccentric sleeve is engaged with the key groove of the eccentric stepped shaft 21 in the left-right direction, the overall eccentricity is the distance between the connecting lines of O 1 and O 3, namely: As shown in fig. 15, when the eccentric sleeve is fitted to the key groove below the eccentric stepped shaft 21, the overall eccentricity is the distance between the O1 and O3 lines, that is: a 1+A2.
The second type of eccentricity-adjustable device is a double-eccentric sleeve amplitude modulation device, which comprises a central shaft 23, an outer eccentric sleeve 24 and an inner eccentric sleeve, wherein the inner eccentric sleeve is connected with the central shaft 23 through a key, the inner eccentric sleeve is sleeved in the outer eccentric sleeve 24, and the inner eccentric sleeve 25 is connected with one end of the outer eccentric sleeve 24 through a flange plate and a bolt. One ends of the inner eccentric sleeve 25 and the outer eccentric sleeve 24 are respectively provided with a flange plate, a plurality of bolt holes are uniformly distributed on the flange plates, and the inner eccentric sleeve 25 and the outer eccentric sleeve 24 can mutually rotate to adjust proper eccentricity. The second eccentricity adjustable device has a structure schematic diagram shown in fig. 16 and 17, the principle of the double eccentric sleeve amplitude modulation device and the eccentric sleeve amplitude modulation device of the eccentric shaft is similar, and the fixed form of adjusting the eccentric amplitude is changed from key fixation to bolt fixation on a flange plate.
The specific working principle of the double rocker self-balancing elastic driving type relaxation sieve of the embodiment is as follows:
the motor 3 runs to drive the belt pulley 4 to rotate, the eccentric belt pulley 16 is driven to rotate by the V-shaped belt 2, the eccentric belt pulley 16 drives the rotating shaft 1 fixed on the inner screen frame 5 through the bearing seat 18 to rotate, and the crankshaft drives the connecting rod 17 to make eccentric motion, so that the outer screen frame 6 is driven to move relative to the inner screen frame 5. The inner screen frame 5 and the outer screen frame 6 fixed on the double rocker arm supporting device 7 swing around the respective square shafts 12, and due to acting force and reacting force, the inner screen frame 5 and the outer screen frame 6 can linearly reciprocate in opposite phase, the screen plate 8 is driven by the beams 30 of the inner screen frame 5 and the outer screen frame 6 to produce relaxation motion, and materials on the screen plate 8 slide along the screen surface from the feeding end to the discharging end under the action of gravity due to the inclination angle of the screen surface.
The principles and embodiments of the present invention have been described in this specification with reference to specific examples, the description of which is only for the purpose of aiding in understanding the method of the present invention and its core ideas; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (8)
1. A double rocker self-balancing elastic driving type relaxation sieve is characterized in that: the device comprises a frame, an inner screen frame, an outer screen frame, a motor, a rotating shaft, a connecting rod and a double-rocker supporting device, wherein the motor is arranged on the frame, the motor is connected with the rotating shaft through a belt transmission mechanism, the rotating shaft is arranged at the top end of the inner screen frame, two sections of crankshafts are symmetrically arranged at two ends of the rotating shaft, the crankshafts are connected onto the outer screen frame through the connecting rod, the inner screen frame is sleeved in the outer screen frame, the double-rocker supporting device is arranged on the frame, an upper rocker of the double-rocker supporting device is connected onto the inner screen frame, a lower rocker of the double-rocker supporting device is connected onto the outer screen frame, and a screen plate is arranged on the inner screen frame;
the double-rocker supporting device comprises an upper rocker arm, a lower rocker arm and a supporting seat, wherein the supporting seat is fixed on the frame, a through hole is formed in the top of the supporting seat, a square shaft is arranged in the through hole in a penetrating mode, a rubber block is arranged between the square shaft and the through hole, a rocker is arranged on the square shaft in a penetrating mode, two ends of the rocker are provided with the upper rocker arm and the lower rocker arm, the upper rocker arm and the lower rocker arm are both a square shaft, one end of the upper rocker arm and one end of the lower rocker arm are provided with mounting flanges, the other end of the upper rocker arm and the other end of the lower rocker arm are arranged in the through holes in a penetrating mode at two ends of the rocker arm in a penetrating mode, two sides of the sieve plate are fixed between a side pressing plate and a sealing plate through bolts, and the sealing plate is connected with an inner sieve frame through buckles.
2. The dual rocker self-balancing spring driven flip-flop screen of claim 1, wherein: the frame is obliquely arranged, an oblique feeding plate is arranged at the top end of the inner screen frame, and a discharging plate is arranged at the bottom end of the inner screen frame; the bottom of interior reel with the bottom of outer reel all is provided with a plurality of crossbeam, just the upper surface of crossbeam is located the coplanar.
3. The dual rocker self-balancing spring driven flip-flop screen of claim 1, wherein: the rotating shaft is connected to the top end of the inner screen frame through a bearing and a bearing seat, and a swing bearing is arranged between the connecting rod and the outer screen frame.
4. The dual rocker self-balancing spring driven flip-flop screen of claim 1, wherein: the belt transmission mechanism comprises a belt pulley, an eccentric belt pulley and a V-shaped belt, wherein the belt pulley is connected with a main shaft of the motor, the eccentric belt pulley is arranged on the rotating shaft, and the belt pulley is connected with the eccentric belt pulley through the V-shaped belt.
5. The dual rocker self-balancing spring driven flip-flop screen of claim 1, wherein: the crankshaft is an eccentric distance adjustable device.
6. The dual rocker self-balancing spring driven flip-flop screen of claim 5, wherein: the eccentric distance adjusting device comprises an eccentric stepped shaft and an eccentric shaft sleeve, wherein eccentric shafts are arranged on two sides of the eccentric stepped shaft, a plurality of key grooves are uniformly distributed on the eccentric shafts, and the eccentric shaft sleeve is matched with any key groove of the eccentric shafts through keys.
7. The dual rocker self-balancing spring driven flip-flop screen of claim 5, wherein: the eccentric distance adjusting device comprises a central shaft, an outer eccentric sleeve and an inner eccentric sleeve, wherein the inner eccentric sleeve is connected with the central shaft through a key, the inner eccentric sleeve is sleeved in the outer eccentric sleeve, and the inner eccentric sleeve is connected with one end of the outer eccentric sleeve through a flange plate and a bolt.
8. The dual rocker self-balancing spring driven flip-flop screen of claim 7, wherein: the inner eccentric sleeve and one end of the outer eccentric sleeve are respectively provided with a flange plate, a plurality of bolt holes are uniformly distributed on the flange plates, and the inner eccentric sleeve and the outer eccentric sleeve can mutually rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910998672.9A CN110605236B (en) | 2019-10-21 | 2019-10-21 | Double-rocker self-balancing elastic driving type relaxation sieve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910998672.9A CN110605236B (en) | 2019-10-21 | 2019-10-21 | Double-rocker self-balancing elastic driving type relaxation sieve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110605236A CN110605236A (en) | 2019-12-24 |
| CN110605236B true CN110605236B (en) | 2024-06-25 |
Family
ID=68893307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910998672.9A Active CN110605236B (en) | 2019-10-21 | 2019-10-21 | Double-rocker self-balancing elastic driving type relaxation sieve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110605236B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114377948B (en) * | 2022-01-13 | 2022-09-20 | 中国矿业大学(北京) | Modular reconfigurable transverse vibration large-scale flip-flow screen |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2302063Y (en) * | 1997-05-07 | 1998-12-30 | 中国矿业大学 | Suspension type bilateral driving flip-flow screen |
| CN102091689A (en) * | 2009-12-10 | 2011-06-15 | 贵阳铝镁设计研究院 | Method and structure for regulating vibration amplitude of mechanical vibration device |
| CN207430678U (en) * | 2017-09-18 | 2018-06-01 | 云南省农业机械研究所 | Novel vibration device |
| CN210701102U (en) * | 2019-10-21 | 2020-06-09 | 中国矿业大学(北京) | Double-rocker self-balancing elastic driving type flip-flow screen |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2416988Y (en) * | 2000-03-31 | 2001-01-31 | 李荣祥 | Multi-function shearing machine |
| CN101664738B (en) * | 2008-09-01 | 2012-01-04 | 中国矿业大学 | Centralized driving flip-flow screen |
| AT511949B1 (en) * | 2012-02-29 | 2013-04-15 | Ife Aufbereitungstechnik Gmbh | Spannwellensieb |
| CN103104589A (en) * | 2012-12-07 | 2013-05-15 | 苏州蓝王机床工具科技有限公司 | Eccentric shaft with adjustable eccentric distance |
| CN103752498B (en) * | 2014-01-14 | 2016-01-20 | 中国矿业大学 | A kind of acoustic filed formula swinging screen |
| CN204448553U (en) * | 2014-12-10 | 2015-07-08 | 农业部南京农业机械化研究所 | Driving apparatus for vibration sieve |
| FR3047677B1 (en) * | 2016-02-11 | 2020-11-13 | Suez Environnement | SCREENING MACHINE |
| CN106269489B (en) * | 2016-10-19 | 2018-07-06 | 中国矿业大学 | A kind of unilateral drive-type swinging screen |
| CN107150025A (en) * | 2017-06-19 | 2017-09-12 | 中节能大地环境修复有限公司 | A kind of tension and relaxation screen device sieved for house refuse |
| CN108654985A (en) * | 2018-05-29 | 2018-10-16 | 中国矿业大学(北京) | Self-balancing roller flip flop screen |
| CN108940833A (en) * | 2018-06-25 | 2018-12-07 | 中国矿业大学(北京) | More plastid activated vibration uniform thickness flip flop screens |
| CN109092673A (en) * | 2018-09-11 | 2018-12-28 | 天地（唐山）矿业科技有限公司 | A kind of embedded flip flop screen of double drive |
| CN109092674A (en) * | 2018-09-12 | 2018-12-28 | 天地（唐山）矿业科技有限公司 | A kind of mono-layer banana type vibration flip flop screen |
| CN209174350U (en) * | 2018-11-27 | 2019-07-30 | 中国矿业大学(北京) | A kind of rod spring formula flip flop screen |
-
2019
- 2019-10-21 CN CN201910998672.9A patent/CN110605236B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2302063Y (en) * | 1997-05-07 | 1998-12-30 | 中国矿业大学 | Suspension type bilateral driving flip-flow screen |
| CN102091689A (en) * | 2009-12-10 | 2011-06-15 | 贵阳铝镁设计研究院 | Method and structure for regulating vibration amplitude of mechanical vibration device |
| CN207430678U (en) * | 2017-09-18 | 2018-06-01 | 云南省农业机械研究所 | Novel vibration device |
| CN210701102U (en) * | 2019-10-21 | 2020-06-09 | 中国矿业大学(北京) | Double-rocker self-balancing elastic driving type flip-flow screen |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110605236A (en) | 2019-12-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2020328701B2 (en) | Positive drive self-balancing type flip-flow screen | |
| CN110605236B (en) | Double-rocker self-balancing elastic driving type relaxation sieve | |
| CN210701102U (en) | Double-rocker self-balancing elastic driving type flip-flow screen | |
| US2958228A (en) | Resonant vibration exciter | |
| JPS5854875B2 (en) | Mounting mechanism used for vibration devices | |
| CN109365273B (en) | Self-balancing rolling type relaxation sieve | |
| US3703128A (en) | Vibrating roller | |
| CN101091948B (en) | Three stars vibration exciter in dual frequency | |
| CN109225827A (en) | A kind of multiaxis driving forced vibration flip flop screen | |
| US9266683B1 (en) | Single motor two mass bi-directional conveyor | |
| CN214107832U (en) | High-frequency vibrating screen | |
| US2947183A (en) | Vibration imparting mechanism | |
| US1949703A (en) | Body gyrating mechanism | |
| CN109092674A (en) | A kind of mono-layer banana type vibration flip flop screen | |
| CN109604153B (en) | Double-eccentric cam driving linear vibrating screen | |
| US1693940A (en) | Screening apparatus | |
| US2292327A (en) | Gyrating mechanism | |
| US4389120A (en) | Rotary vibrator with resilient shock mount to provide linear movement | |
| RU2604005C1 (en) | Vibration grinder | |
| CN114377948A (en) | Modular reconfigurable transverse vibration large-scale flip-flow screen | |
| CN103438690B (en) | Swing mechanism of distributing device of horizontal drier | |
| US2066362A (en) | Screening apparatus and the like | |
| US2947181A (en) | Resonant vibration exciter | |
| CN207648069U (en) | A kind of bolt screws adjustable tension mechanism | |
| GB2159603A (en) | Apparatus for the segregation of discrete materials |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |