CN210701102U - Double-rocker self-balancing elastic driving type flip-flow screen - Google Patents
Double-rocker self-balancing elastic driving type flip-flow screen Download PDFInfo
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- CN210701102U CN210701102U CN201921762591.0U CN201921762591U CN210701102U CN 210701102 U CN210701102 U CN 210701102U CN 201921762591 U CN201921762591 U CN 201921762591U CN 210701102 U CN210701102 U CN 210701102U
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Abstract
The utility model discloses a two rocking arm self-balancing elastic drive formula relaxation sieve, which comprises a frame, interior reel, outer reel, including a motor, an end cap, a controller, and a cover plate, the pivot, connecting rod and two rocking arm strutting arrangement, set up the motor in the frame, the motor passes through belt drive mechanism and is connected with the pivot, the pivot sets up in the top of interior reel, the both ends symmetry of pivot is provided with one section bent axle, the bent axle passes through the connecting rod to be connected on outer reel, interior reel cover is located in the outer reel, two rocking arm strutting arrangement set up in the frame, two rocking arm strutting arrangement's last rocking arm is connected on interior reel, two rocking arm strutting arrangement's lower rocking arm is connected on outer reel, be provided with the sieve on the interior. The utility model discloses simple structure is compact, and the mounting height is low, and interior reel, outer reel can the straight reciprocating motion of phase reversal, and ground dynamic load is little, and the energy consumption is low, and the amplitude is adjustable, and oscillating bearing and two rocking arm strutting arrangement have eliminated the mechanical motion noise in the elasticity sieve relaxation motion process, have improved site work personnel's work comfort level greatly.
Description
Technical Field
The utility model relates to a technical field of screening machinery especially relates to a two rocking arm self-balancing elastic drive formula relaxation sieves.
Background
The flip-flow screen well solves the problem of dry deep screening of sticky and wet fine-grained materials, simplifies the process flows in the fields of metallurgy, coal washing, solid waste sorting and the like, reduces the processing cost and has very important significance for energy conservation and emission reduction.
At present, there are two main forms of relaxation sieves at home and abroad: one is on the basis of circular vibrating screen and linear vibrating screen, installed shearing spring and floating reel additional, make main floating reel produce relative motion under the effect of vibration exciter exciting force, this vibration relaxation sieve generally works in the left side of anti-resonance point, and inside and outside reel is in phase motion, and relaxation motion is because the speed difference of inside and outside reel causes, and this relaxation sieve structure is comparatively complicated, and spare part is more, and the energy consumption is great. The other type is an LIWELL relaxation sieve produced by German HEIN LEHMANN company, the relaxation sieve utilizes a crank link mechanism to drive an inner sieve frame and an outer sieve frame to do relative motion with a phase difference of 180 degrees, the structure is simpler, the energy consumption is lower, but the key parts of the sieve machine are as follows: the push-pull rod spring and the supporting guide spring are made of special materials and are not easy to obtain, so the LIWELL relaxation sieve mainly depends on import and is expensive.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a two rocking arm self-balancing elastic drive formula relaxation sieve to solve the problem that above-mentioned prior art exists, make sieve machine simple structure compactness, performance good, the mounting height is lower, and the ground dynamic load is little, and the energy consumption is low, and installed power is little.
In order to achieve the above object, the utility model provides a following scheme:
the utility model provides a two rocking arm self-balancing elastic drive formula relaxation sieve, including frame, interior reel, outer reel, motor, pivot, connecting rod and two rocking arm strutting arrangement, set up the motor in the frame, the motor pass through belt drive mechanism with the pivot is connected, the pivot set up in the top of interior reel, the both ends symmetry of pivot is provided with one section bent axle, the bent axle passes through the connecting rod connect in on the outer reel, interior reel cover is located in the outer reel, two rocking arm strutting arrangement set up in the frame, two rocking arm strutting arrangement's last rocking arm connect in on the interior reel, two rocking arm strutting arrangement's lower rocking arm connect in on the outer reel, be provided with the sieve on the interior reel.
Preferably, the double-rocker-arm supporting device comprises an upper rocker arm, a lower rocker arm and a supporting seat, the supporting seat is fixed on the rack, a through hole is formed in the top of the supporting seat, a square shaft penetrates through the through hole, a rubber block is arranged between the square shaft and the through hole, a rocker is penetrated through the square shaft, 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 end of the upper rocker arm and the other end of the lower rocker arm penetrate through the through holes at the two ends of the rocker arm.
Preferably, the frame is arranged obliquely, 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 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 swing 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 pressure 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-belt, 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-belt.
Preferably, the crankshaft is an eccentric distance adjustable device.
Preferably, the eccentricity adjustable device comprises an eccentric stepped shaft and an eccentric shaft sleeve, wherein the eccentric shaft is arranged on two sides of the eccentric stepped shaft, a plurality of key slots are uniformly distributed on the eccentric shaft, and the eccentric shaft sleeve is matched with any one of the key slots of the eccentric shaft through a key.
Preferably, the eccentric distance adjustable device comprises a central shaft, an outer eccentric sleeve and an inner eccentric sleeve, 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 one end of the inner eccentric sleeve is connected with one end of the outer eccentric sleeve through a flange plate and a bolt.
Preferably, one end of each of the inner eccentric sleeve and the outer eccentric sleeve is provided with a flange plate, a plurality of bolt holes are uniformly distributed in the flange plate, and the inner eccentric sleeve and the outer eccentric sleeve can rotate mutually.
The utility model discloses for prior art gain following technological effect:
the utility model has simple and compact structure, lower installation height, small dynamic load of the foundation, low energy consumption and small installed power, and the inner screen frame and the outer screen frame can do linear reciprocating motion in opposite phases; the oscillating bearing and the double-rocker supporting device eliminate mechanical movement noise except friction noise between the elastic sieve plate and materials in the relaxation movement process, and greatly improve the working comfort of field workers; the eccentric distance adjustable device can simply and effectively adjust the amplitude of the screening machine, so that the screening machine can process materials with different properties; the method is suitable for dry-process deep screening in industries such as metallurgy, coal, solid waste and the like, and is also suitable for light industries 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 required to be used 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 for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of a double-rocker self-balancing elastic driving flip-flow screen of the present invention;
FIG. 2 is a schematic structural view of the inner screen frame of the present invention;
FIG. 3 is a schematic structural view of the outer screen frame of the present invention;
fig. 4 is a partially enlarged schematic view of the structure at a in fig. 3 according to the present invention;
FIG. 5 is a first schematic structural view of the middle shaft and the connecting rod of the present invention;
FIG. 6 is a second schematic structural view of the middle shaft and the connecting rod of the present invention;
FIG. 7 is a schematic view of a partial structure of the double-rocker self-balancing elastic driven flip-flow screen of the present invention;
fig. 8 is a partially enlarged schematic view of the structure shown at B in fig. 3 according to the present invention;
fig. 9 is a schematic structural view of a double rocker arm supporting device according to the present invention;
FIG. 10 is a first schematic structural view of an eccentric stepped shaft of a first device with adjustable eccentricity according to the present invention;
fig. 11 is a second schematic structural view of the eccentric stepped shaft of the first device with adjustable eccentricity of the present invention;
fig. 12 is a schematic structural view of an eccentric shaft sleeve in a first eccentricity adjustable device according to the present invention;
fig. 13 is a first schematic view illustrating a state of a first device with adjustable eccentricity of the present invention;
fig. 14 is a schematic view of a state of a first eccentricity adjusting device of the present invention;
fig. 15 is a third schematic view of a state of the first device with adjustable eccentricity of the present invention;
fig. 16 is a schematic structural view of a second device with adjustable eccentricity according to the present invention;
FIG. 17 is a schematic view of an assembly of an inner and outer eccentric sleeves of a second device with adjustable eccentricity 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 pressure 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-oscillating 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 technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The utility model aims at providing a two rocking arm self-balancing elastic drive formula relaxation sieve to solve the problem that prior art exists, make sieve machine simple structure compactness, performance good, the mounting height is lower, and the ground dynamic load is little, and the energy consumption is low, and installed power is little.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1 to 17: the embodiment provides a two rocking arm self-balancing elastic drive formula relaxation sieve, including frame 10, interior reel 5, outer reel 6, motor 3, pivot 1, connecting rod 17 and two rocking arm strutting arrangement 7, set up motor 3 in the frame 10, motor 3 passes through belt drive mechanism and is connected with pivot 1, belt drive mechanism includes belt pulley, eccentric pulley 16 and V-arrangement area 2, belt pulley 4 is connected with motor 3's main shaft, eccentric pulley 16 sets up on pivot 1, belt pulley 4 and eccentric pulley 16 pass through V-arrangement area 2 and connect. 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 in outer reel 6 was located to interior reel 5 cover, two rocking arm strutting arrangement 7 set up in frame 10, and two rocking arm strutting arrangement 7's last rocking arm is connected on interior reel 5, and two rocking arm strutting arrangement 7's lower rocking arm is connected on outer reel 6, is provided with sieve 8 on the interior reel 5. The frame 10 is arranged obliquely, an inclined feeding plate 28 is arranged at the top end of the inner screen frame 5, and a discharging plate 29 is arranged at the bottom end of the inner screen frame 5. The bottom of the inner screen frame 5 and the bottom of the outer screen frame 6 are both 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.
Two rocking arm strutting arrangement 7 include the rocking arm, rocking arm and supporting seat 15 down, supporting seat 15 is fixed in on frame 10, the top of supporting seat 15 sets up a through-hole, wear to establish a square axle 12 in the through-hole, be provided with the block rubber between square axle 12 and the through-hole, wear to establish a rocker 13 on the square axle 12, the both ends of rocker 13 are provided with rocking arm and lower rocking arm, it is a square axle 12 with lower rocking arm to go up the rocking arm, it is provided with mounting flange 11 with lower rocking arm one end to go up the rocking arm, the other end of going up rocking arm and lower rocking arm wears to locate in the through-hole at rocker 13. 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 degrees, four corners between the square shaft 12 and the through hole are filled with the rubber rods 14, and elastic torsion can be achieved. The oscillating bearing 20 is arranged in a detachable clamping sleeve 19 at the end part of the clamping type connecting rod 17, and a gap of 1-2mm is reserved between the clamping sleeve 19 with a threaded hole and the connecting rod 17, so that the oscillating bearing 20 can be clamped under the action of a screw conveniently, and the relative motion between the oscillating bearing and the connecting rod can not be generated; the mounting flange 11 and the outer screen frame 6 of the oscillating bearing 20 are fixed through bolts, and the oscillating bearing 20 not only can transmit the push-pull acting force of the connecting rod 17, but also can provide a certain oscillating angle for the connecting rod 17, so that the connecting rod 17 is not easy to damage.
The double-rocker supporting device 7 not only can lead the inner and outer screen frames 6 to swing around the middle square shaft 12 of the rocker 13, but also can lead the inner and outer screen frames 6 to swing around the middle square shaft 12 of the rocker 13The movable component is isolated from the frame 10 through the rubber bars 14 to play a role of an isolation spring, the rubber bars 14 around the square shaft 12 are compressed and deformed to generate restoring force during swinging, so that the inner and outer screen frames 6 swing back, and the noise is greatly improved compared with the existing crank connecting rod type relaxation screen; when the two masses are equal in mass and the distances from the middle square shaft 12 to the upper and lower holes of the rocker 13 are equal, the inertia forces of the two masses can be balanced, and if the masses of the two masses are different, the two masses can be calculated according to the centrifugal inertia force formula: m is1ω2r1＝m2ω2r2The inertia forces of the two masses are balanced by adjusting the position of the shaft 12 in 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 present embodiment is a stepped eccentric shaft, the shaft neck of the mounting connecting rod 17 and the shaft head of the mounting eccentric belt pulley 16 are equidistant and eccentric, and the bearing is a self-aligning roller bearing. Self-aligning roller bearings are symmetrically arranged on a straight shaft section and a crankshaft section of the rotating shaft 1, the self-aligning roller bearings of the straight shaft section are matched with a bearing seat 18 and a labyrinth cover to be installed on the inner screen frame 5, the self-aligning roller bearings on the crankshaft section are matched with a connecting rod 17 and a bearing gland to be connected on the outer screen frame 6, two sides of each of the two self-aligning roller bearings are respectively provided with a round nut, the round nuts are matched with the labyrinth cover to axially position inner rings of the self-aligning roller bearings, and the bearing gland fixes outer rings of the bearings in the bearing seat 18 and the clamping type connecting rod 17 under the action of screws. The eccentric belt wheel 16 is connected with the rotating shaft 1 through a key to transmit torque, and the eccentric belt wheel 16 and the crankshaft have the same eccentricity, so that the eccentric belt wheel 16 is prevented from being subjected to centrifugal acting force; the upper side and the lower side of the bearing seat 18 and the connecting rod 17 are provided with oil filling cups, the upper oil filling cup is mainly used for filling oil, and the lower oil filling cup 21 is used for draining lubricating oil which is worn and failed in long-time operation; the shaft end protective cover is arranged on the connecting rod 17 on the side different from the eccentric belt wheel 16, and separates the rotating shaft 1 rotating at high speed from the outside.
Two sides of the sieve plate 8 are fixed between the side pressure plates 9 and the sealing plate 31 through bolts, and the sealing plate 31 is connected with the inner sieve frame 5 through a buckle. The clip of this embodiment includes a clip groove 26 and a T-shaped clip 27, the T-shaped clip 27 is disposed on the sealing plate 31, and the clip 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 part is welded with a flange and is connected with the side plate 29 of the inner screen frame 5 by a bolt, a plurality of bolt holes are symmetrically formed in the upper surface of the cross beam 30 of the inner screen frame 5 and are used for installing the screen plate 8 made of elastic materials, and the cross beams 30 of the inner screen frame 5 and the outer screen frame 6 are bent to open towards the discharge end, so that material storage is not easy in the material screening process; the side plates of the outer screen frame 6 are connected with the cross beams 30 through bolts, and circular pipes are welded between the cross beams 30 of the outer screen frame 6 and the mounting flange 11, so that the upper surfaces of the cross beams 30 of the inner screen frame 5 and the outer screen frame 6 are in the same plane.
The crankshaft is an eccentric distance adjustable device, and the eccentric distance 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 the two sides of the eccentric stepped shaft 21 are eccentric shafts, a plurality of key grooves are uniformly distributed on the eccentric shafts, and the eccentric shaft sleeve 22 is matched with any one key groove of the eccentric shafts through keys and used for adjusting proper eccentricity.
The first eccentricity-adjustable device is an eccentric shaft eccentric sleeve amplitude-adjustable device, and the structure of an eccentric stepped shaft 21 is shown in fig. 10 to 11, O1Is the center of rotation, O, of the eccentric stepped shaft 212Is the center of the eccentric section of the eccentric stepped shaft 21, and the eccentricity is A1In the present embodiment, four mutually perpendicular key grooves are formed at the end of the eccentric stepped shaft 21. The eccentric bushing structure is shown in FIG. 12, O2Is 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 A2。
The working principle of the eccentric shaft eccentric sleeve amplitude modulation device is as follows: when the eccentric sleeve is fitted in the key groove above the eccentric stepped shaft 21, as shown in fig. 13, a1Is equal to A2While, the center O of the outer ring of the eccentric sleeve3And the rotation center O of the eccentric stepped shaft 211At this time, the eccentricity of the eccentric sleeve and the eccentric stepped shaft 21 is 0, and the eccentric sleeve and the eccentric stepped shaft are not eccentric. As shown in fig. 14When the eccentric sleeve is fitted with the key groove in the left-right direction of the eccentric stepped shaft 21, the overall eccentricity is O1And O3The distance of the connecting line, namely:
as shown in fig. 15, when the eccentric sleeve is engaged with the key slot below the eccentric stepped shaft 21, the overall eccentricity is the distance between the lines O1 and O3, that is: a. the1+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 one end of the inner eccentric sleeve 25 is connected with one end of the outer eccentric sleeve 24 through a flange plate and a bolt. One end of each of the inner eccentric sleeve 25 and the outer eccentric sleeve 24 is provided with a flange plate, a plurality of bolt holes are uniformly distributed in the flange plate, and the inner eccentric sleeve 25 and the outer eccentric sleeve 24 can rotate mutually to adjust a proper eccentric distance. The second eccentric distance adjusting device is shown in fig. 16 and 17, and the double eccentric sleeve amplitude adjusting device and the eccentric shaft eccentric sleeve amplitude adjusting device have similar principles, except that the fixing mode of adjusting the eccentric amplitude is changed from key fixing to bolt fixing on a flange plate.
The specific working principle of the double-rocker-arm self-balancing elastic driving type flip-flow screen of the embodiment is as follows:
the motor 3 runs to drive the belt pulley 4 to rotate, the V-shaped belt 2 drives the eccentric belt pulley 16 to rotate, 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 enables the connecting rod 17 to do eccentric motion, so as to drive the outer screen frame 6 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 supporting device 7 swing around respective square shafts 12, the inner screen frame 5 and the outer screen frame 6 can linearly reciprocate in opposite phases due to the action force and the reaction force, the screen plate 8 is driven by the cross beams 30 of the inner screen frame 5 and the outer screen frame 6 to generate tension movement, and materials on the screen plate 8 slide from the feeding end to the discharging end along the screen surface under the action of gravity due to the inclination angle of the screen surface.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (10)
1. A double-rocker self-balancing elastic driving type flip-flow screen is characterized in that: including frame, interior reel, outer reel, motor, pivot, connecting rod and two rocking arm strutting arrangement, set up the motor in the frame, the motor pass through belt drive mechanism with the pivot is connected, the pivot set up in the top of interior reel, the both ends symmetry of pivot is provided with one section bent axle, the bent axle passes through the connecting rod connect in on the outer reel, interior reel cover is located in the outer reel, two rocking arm strutting arrangement set up in the frame, two rocking arm strutting arrangement's last rocking arm connect in on the interior reel, two rocking arm strutting arrangement's lower rocking arm connect in on the outer reel, be provided with the sieve on the interior reel.
2. The dual rocker arm self-balancing spring driven relaxation screen of claim 1, wherein: the double-rocker-arm supporting device comprises an upper rocker arm, a lower rocker arm and a supporting seat, wherein the supporting seat is fixed on the rack, a through hole is formed in the top of the supporting seat, a square shaft penetrates through the through hole, 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 end of the upper rocker arm and the other end of the lower rocker arm penetrate through the through holes at the two.
3. The dual rocker arm self-balancing spring driven relaxation 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 outer reel all is provided with a plurality of crossbeam, just the upper surface of crossbeam is located the coplanar.
4. The dual rocker arm self-balancing spring driven relaxation 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.
5. The dual rocker arm self-balancing spring driven relaxation screen of claim 1, wherein: the two sides of the sieve plate are fixed between the side pressure plate and the sealing plate through bolts, and the sealing plate is connected with the inner sieve frame through a buckle.
6. The dual rocker arm self-balancing spring driven relaxation screen of claim 1, wherein: the belt transmission mechanism comprises a belt pulley, an eccentric belt pulley and a V-shaped belt, 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.
7. The dual rocker arm self-balancing spring driven relaxation screen of claim 1, wherein: the crankshaft is an eccentric distance adjustable device.
8. The dual rocker arm self-balancing spring driven flip-flow screen of claim 7, wherein: 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 one of the key grooves of the eccentric shafts through keys.
9. The dual rocker arm self-balancing spring driven flip-flow screen of claim 7, wherein: the eccentric distance adjustable 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.
10. The dual rocker arm self-balancing spring driven flip-flow screen of claim 9, wherein: the inner eccentric sleeve and the outer eccentric sleeve are respectively provided with a flange plate at one end, a plurality of bolt holes are uniformly distributed in the flange plates, and the inner eccentric sleeve and the outer eccentric sleeve can rotate mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921762591.0U CN210701102U (en) | 2019-10-21 | 2019-10-21 | Double-rocker self-balancing elastic driving type flip-flow screen |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921762591.0U CN210701102U (en) | 2019-10-21 | 2019-10-21 | Double-rocker self-balancing elastic driving type flip-flow screen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110605236A (en) * | 2019-10-21 | 2019-12-24 | 中国矿业大学(北京) | Double-rocker self-balancing elastic driving type flip-flow screen |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110605236A (en) * | 2019-10-21 | 2019-12-24 | 中国矿业大学(北京) | Double-rocker self-balancing elastic driving type flip-flow screen |
| CN110605236B (en) * | 2019-10-21 | 2024-06-25 | 中国矿业大学(北京) | Double-rocker self-balancing elastic driving type relaxation sieve |
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