CN218013921U - Staggered mutual impact type self-cleaning screening device - Google Patents
Staggered mutual impact type self-cleaning screening device Download PDFInfo
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- CN218013921U CN218013921U CN202222308012.3U CN202222308012U CN218013921U CN 218013921 U CN218013921 U CN 218013921U CN 202222308012 U CN202222308012 U CN 202222308012U CN 218013921 U CN218013921 U CN 218013921U
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Abstract
The utility model discloses a staggered mutual-impacting self-cleaning screening device, which comprises a plurality of groups of staggered mutual-impacting rotary screening mechanisms, a play generating mechanism and a pulse early-warning automatic cleaning mechanism which are arranged in an inclined way, wherein the staggered mutual-impacting rotary screening mechanisms are adjacently arranged or are arranged at a distance from each other, self-cleaning screening devices are equidistantly arranged to be coupled with the outer surface of a rotating shaft, the rotating shaft is arranged into a hollow structure and a jet hole, and the self-cleaning screening devices of the rotating shaft are mutually staggered in the same axial direction and at equal distance; the pulse early warning automatic cleaning mechanism comprises an overload detector and a controller; the overload detector is arranged at one end of the rotating shaft, and the play generating mechanism is provided with plane cam devices arranged at two ends of the rotating shaft assembly. The staggered mutual-impact self-cleaning screening device adopts staggered mutual-impact cleaning teeth, self-cleaning is carried out in the process of rotary screening, real-time monitoring, early warning and cleaning are carried out on the bearing load of the material screening rotating shaft through the pulse early warning automatic cleaning mechanism, and the material vibration screening is further promoted by the play generating mechanism.
Description
Technical Field
The utility model belongs to material screening field especially relates to a crisscross mutual impact formula is from clearing up screening plant.
Background
At present, in industries such as a coking plant, a power plant, a coal mine and the like, some materials need to be screened, but the materials are wet and sticky, the traditional vibration screening effect is poor, a cross screening device is generally adopted, the cross screening device generally comprises 14-27 shafts, a plurality of screen pieces with the same interval are arranged on each shaft, the screen pieces of adjacent shafts are blended and crossed, gaps between the cross screen pieces are screen holes, a certain interval is formed between the shafts, and a certain angle is formed between the central plane of each shaft and the ground, so that an inclined screen surface is formed.
In the operation of the cross screen screening equipment, small particle materials can be adhered to the screen pieces due to the wet and sticky materials, and the adhered screen pieces which are crossed can be rubbed after being adhered to a certain thickness along with the adhesion of the materials on the two side surfaces of the screen pieces to form a disc brake effect, so that the load of the equipment is increased, and the motor is shut down due to overload current. The conventional method for solving this problem is to arrange a toothed scraper 700 below each screen shaft, as shown in fig. 1, and the scraper extends between the screen plates and has a certain gap with the screen plates, so as to achieve the effect of scraping off the adhered materials without friction. The method has the problems that materials scraped by the tooth-shaped scraper cannot completely fall off, and can be continuously accumulated in an included angle range formed by the shaft, the screen sheet and the tooth-shaped scraper, so that the friction force of the screen sheet is obviously increased.
CN 204953339U discloses a self-cleaning sieve plate and a sieving mechanism, which comprises a sieving mechanism and a knocking mechanism; the material screening mechanism comprises a screen sheet, and a plurality of filtering holes are formed in the screen sheet, so that materials are separated into oversize materials and undersize materials through the filtering holes, namely, the materials are screened and classified; the knocking mechanism is fixed on the frame, and can knock the sieve sheet along with the vibrating blanking process of the sieve mechanism, so that the material can smoothly pass through the filtering holes of the sieve sheet. The technical problem solved is that when the bar-type sieve plate is adopted in the prior art, bars are easy to wear and break, and the technical defect of large material leakage is easily caused in the long-term use process due to the fact that the width of a reserved blanking gap between adjacent bars is too wide or the length is too long.
CN208466411U discloses a material screening and distributing device, which comprises a housing and an impeller screening mechanism; the impeller screening mechanism is formed by sequentially arranging a plurality of groups of transversely arranged impeller screening rollers, each impeller screening roller comprises an impeller shaft), a plurality of impellers and a plurality of impeller spacer bushes, the impeller shafts of the impeller screening rollers) are parallel to each other, the impellers and the impeller spacer bushes are sequentially arranged on the impeller shafts at intervals, and projections of the impellers on the adjacent impeller screening rollers in the axial direction have mutually overlapped parts; at least one self-cleaning plate is distributed on the impeller, the root part of the self-cleaning plate is fixed at the edge of the impeller, and the end part of the self-cleaning plate extends to the vicinity of the impeller spacer sleeve of the adjacent impeller screening roller. The technical problem to be solved is that the material enters the screening and distributing device to be adhered on the impeller spacer sleeve, the rotating impeller and the self-cleaning plate are inserted between two adjacent impellers of the spacer sleeve, so that the material on the impeller spacer sleeve can be swept, and the problems of sieve pore blockage, screening efficiency reduction, part abrasion increase and service life reduction caused by material adhesion can be effectively avoided; meanwhile, due to the fact that the adjacent impeller screening rollers have rotation speed differences, the positions of points which are cleaned by the self-cleaning plate are driven to be different when the impeller rotates for one circle, and therefore all angles of the impeller spacer sleeve can be swept by the self-cleaning plate under the action of multiple rotations, and the adhered materials can be cleaned without dead angles.
To sum up, above-mentioned technical scheme does not solve the screening equipment in service, and the material adhesion forms the problem of "dish effect of stopping" on the sieve piece, does not have the early warning control to the trend in advance that produces "dish effect of stopping" simultaneously.
Disclosure of Invention
An object of the utility model is to provide a crisscross mutual impact formula is from clearance screening plant to solve the technical problem that the material adhesion produced "dish effect of stopping" on the sieve piece.
In order to achieve the above object, the utility model discloses a crisscross mutual impact formula is from clearing up screening plant's concrete technical scheme as follows: the utility model provides a crisscross mutual impact formula is from clearing up screening plant includes to one side down carries to arrange rotatory screening mechanism, drunkenness emergence mechanism, the pulse early warning self-cleaning mechanism that the multiunit was crisscross to hit each other, its characterized in that: the staggered mutual impact rotary screening mechanisms are adjacently arranged or arranged at intervals, each staggered mutual impact rotary screening mechanism comprises one group, two groups or multiple groups of adjacent rotary shaft assemblies, and the adjacent rotary shaft assemblies are arranged in a staggered manner; the rotating shaft assembly comprises a rotating shaft and a self-cleaning screening device which is equidistantly coupled and arranged on the outer surface of the rotating shaft; the rotary shaft is of a hollow structure, radial injection holes are axially distributed on the rotary shaft, and the injection holes are close to two sides of the self-cleaning screen piece device; the self-cleaning screening device comprises a rotating shaft screening piece and a cleaning tooth group; the rotary shaft sieve sheets are arranged in a circular disc shape and are arranged on the rotary shaft at equal intervals; the cleaning tooth groups are symmetrically distributed on two sides of the rotating shaft screen sheet; the coaxial cleaning tooth groups are arranged in phase.
Further, the adjacent center distance L of the rotating shafts meets the following condition:
R+d 1 <L<2R-θ
r is the radius of the sieve sheet
d 1 Outer diameter of rotating shaft
The safety margin theta is generally 2-15mm, and the high value is taken when the rotating speed is high.
Further, the rotating shaft assembly is arranged to rotate synchronously in the same direction; the phase difference of cleaning teeth of adjacent rotating shafts is 0-360/(2 x n), wherein n is the number of the cleaning teeth uniformly distributed in each circle.
Further, the self-cleaning screening devices of the rotating shaft are equidistant in the same axial direction; the cleaning tooth groups of the coaxial adjacent self-cleaning screening devices are mutually staggered.
Furthermore, the cleaning tooth groups can be uniformly distributed on two sides of the rotating shaft screen sheet in a single circle or multiple circles.
Furthermore, the cleaning teeth are rod bodies, prism bodies or frustum bodies.
Further, the pulse early warning automatic cleaning mechanism comprises an overload detector, a controller and a pulse high-pressure gas/liquid impact part, wherein the controller comprises the overload detector and the controller.
Further, the overload detector is mounted at one end of the rotating shaft through a spacer shaft.
Furthermore, the play generating mechanism is arranged at two ends of the rotating shaft assembly, the axial displacement distance H of the rotating shaft is less than 2 delta, and delta is the minimum average clearance on one side of the sieve sheet; the play generating mechanism is mounted at intervals of the shaft.
Further, the play generating mechanism is a plane cam device which is coaxially opposite.
The utility model discloses a crisscross mutual impact formula is from clearing up screening plant has following advantage: 1. the staggered mutual-impact type self-cleaning screening device improves the material screening effect, adopts staggered mutual-impact type cleaning teeth to replace a tooth-shaped scraper structure, performs self-cleaning in the rotary screening process, and is simpler in equipment structure and more convenient and faster to clean; 2. the staggered mutual impact type self-cleaning screening device adopts a pulse early warning automatic cleaning mechanism, carries out real-time monitoring and early warning on the bearing load of the material screening rotating shaft by arranging an overload detector, transmits pulse signals exceeding a specified value in time and is controlled by a controller, and high-pressure water or high-pressure gas is introduced into the hollow rotating shaft to clean the screening device in time, so that the overload operation of a motor is reduced in time, the problem of 'disc brake effect' in the screening process of the material is solved, the power of the configured motor can be obviously reduced, and the electric power is saved; 3. the staggered mutual impact type self-cleaning screening device is provided with the play generation mechanism at the partition shaft, and the flat cam is used for generating the effect of axial play to vibrate the screened materials, so that the screening effect of the materials is further promoted, and the occurrence probability of the problem of disc brake effect in the screening process is reduced; 4. the staggered mutual-impact type self-cleaning screening device is free of manual cleaning, easy to maintain and high in reliability.
Drawings
Figure 1 is a schematic diagram of the original structure of a cross screening apparatus.
Fig. 2 is a front view i of the staggered mutual impact type self-cleaning screening device.
Fig. 3 is a top view (rotation) i of the staggered interbroking type self-cleaning screening device.
Fig. 4 is an enlarged view of a portion of the axial direction of the staggered interbrok type self-cleaning screening device.
Figure 5 is a schematic view of a staggered interbroking self-cleaning screening device planar cam mechanism.
Fig. 6 is a partial view of a staggered interbroking self-cleaning screening device.
FIG. 7 is a diagram showing the cleaning trajectory of a staggered interbroking self-cleaning screening device.
Fig. 8 is a complete trajectory diagram of a staggered reciprocal impact self-cleaning screening device.
Fig. 9 is a front view ii of the staggered reciprocal impact self-cleaning screening device.
Figure 10 is a top view (rotation) ii of the staggered interbroking self-cleaning screening device.
Numbering in the figures: 100-rotating shaft I assembly, 101-rotating shaft I, 102-rotating shaft I screen piece, 103-cleaning tooth group I, 104-overload detector I, 105-controller I, 106-injection hole I, 200-rotating shaft II assembly, 201-rotating shaft II, 202-rotating shaft II screen piece, 203-cleaning tooth group II, 204-fixed plane cam I, 205-moving plane cam I, 206-injection hole II, 300-rotating shaft III assembly, 301-rotating shaft III, 302-rotating shaft III screen piece, 303-cleaning tooth group III, 304-overload detector II, 305-controller II, 400-rotating shaft IV assembly, 401-rotating shaft IV, 402-rotating shaft IV screen piece, 403-rotating shaft IV cleaning tooth a, 404-rotating shaft IV cleaning tooth b, 405-rotating shaft IV cleaning tooth c, 406-rotating shaft IV cleaning tooth d, 407-rotating shaft IV cleaning tooth e, 408-rotating shaft cleaning tooth f, 409-fixed plane cam II, 410-moving plane cam II, 500-rotating shaft I screen piece, 600-cleaning tooth track line II, 700-cleaning track line.
Detailed Description
To better understand the purpose, structure and function of the present invention, the following description of the present invention with reference to the accompanying drawings is made in detail to the staggered and reciprocal impact type self-cleaning screening device, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiment in this experimental utility model, all other embodiments that ordinary skilled person in the art obtained all belong to the scope of protection of the utility model.
Example one
As shown in fig. 2, 3, 4 and 5, the utility model discloses a staggered mutual-impacting type self-cleaning screening device, which comprises a slant downward conveying arrangement staggered mutual-impacting rotary screening mechanism I, a staggered mutual-impacting rotary screening mechanism II, a play generator mechanism I, a pulse early-warning automatic cleaning mechanism I, a play generator mechanism II and a pulse early-warning automatic cleaning mechanism II, wherein the staggered mutual-impacting rotary mechanism I comprises a rotary shaft I assembly 100 and a rotary shaft II assembly 200; the staggered and mutually impacting rotary screening mechanism II comprises a rotary shaft III assembly 300 and a rotary shaft IV assembly 400.
The rotating shaft I assembly 100 comprises a rotating shaft I101 and a self-cleaning screen piece device I, wherein the rotating shaft I101 is of a hollow structure, and a spraying hole I106 is formed in the radial direction of the rotating shaft I101; the self-cleaning screening device I is arranged on the outer surface of the rotating shaft I101 at equal intervals in a coupling mode; the number of the self-cleaning sheet screening devices I is more than 2.
The injection holes I106 are arranged on two symmetrical sides of the self-cleaning screening device I and are close to two sides of the self-cleaning screening device I; high-pressure water or high-pressure gas is introduced into the hollow rotating shaft I101, and the high-pressure water or high-pressure gas is sprayed out through the spraying hole I106 to clean materials adhered to the self-cleaning screening device I or the rotating shaft I101.
The self-cleaning screening device I comprises a rotating shaft I, a screening sheet 102 and a cleaning tooth group I103; the sieve sheets 102 of the rotating shaft I are arranged in a circular disc shape and are arranged on the outer surface of the rotating shaft I101 in a staggered coupling mode; the cleaning tooth group I103 is uniformly distributed in a single row, coupled and symmetrically arranged on the end faces of the two sides of the sieve sheet 102 of the rotating shaft I with the same diameter, the cleaning tooth group I103 is identical in structure and the protruding heights of the two sides of the sieve sheet are identical; the number of the cleaning tooth groups I103 is more than 1, when viscous viscosity is large, stripping is not easy, and adhesion is strong, fewer tooth numbers are adopted, the radial size of the cleaning teeth is increased, the strength of the cleaning teeth is improved, and the reliability of the self-cleaning screening device is improved; the relative angle between the self-cleaning screening device I and the rotating shaft I101 is consistent.
The rotating shaft II assembly 200 comprises a rotating shaft II 201 and a self-cleaning screening device II, wherein the rotating shaft II 201 is of a hollow structure, and a spray hole II 206 is formed in the radial direction of the rotating shaft II 201; the outer surface of the rotating shaft II 201 is equidistantly provided with self-cleaning screening devices II in a coupling mode; the number of the self-cleaning screening devices II is more than 2.
The injection holes II 206 are arranged on two symmetrical sides of the self-cleaning screening device II and are close to two sides of the self-cleaning screening device II; high-pressure water or high-pressure gas is introduced into the hollow rotating shaft II 201, and is sprayed out through the spraying hole II 206 to clean materials adhered to the self-cleaning sieve piece device II or the rotating shaft II 201.
The self-cleaning sieve plate device II comprises a sieve plate 202 of a rotating shaft II and a cleaning tooth group II 203; the rotating shaft II sieve sheet 202 is in a circular disc shape and is arranged on the outer surface of the rotating shaft II 201 in a coupling mode; the cleaning tooth group II 203 is symmetrically arranged on the end surfaces of two sides of the sieve sheet 202 of the rotating shaft II with the same diameter in a double-row coupling mode, the cleaning tooth group II 203 is identical in structure, and the number of the cleaning teeth with the same protruding height on the two sides of the sieve sheet is larger than 1; the relative angle of the self-cleaning screening device II is consistent with that of the rotating shaft II 201.
Further, the center distance L between the adjacent rotating shafts i 101 and ii 201 satisfies the following condition:
R+d 1 <L<2R-θ
r is the radius of the sieve sheet
d 1 Outer diameter of rotating shaft
The safety margin theta is generally 2-15mm, and the high value is taken when the rotating speed is high.
The rotating shaft I assembly 100 and the rotating shaft II assembly 200 synchronously rotate in the same direction; the initial angles of the rotating shaft I assembly 100 and the rotating shaft II assembly 200 can be the same or different, the phase difference of the cleaning teeth is 0-360/(2 x n), wherein n is the number of the cleaning teeth uniformly distributed in each circle, so that interference during operation is avoided; the cleaning teeth can also be distributed at different radial positions, so that the cleaning teeth are ensured not to interfere when rotating.
The self-cleaning screening device I on the rotating shaft I101 and the self-cleaning screening device II on the rotating shaft II 201 are crossed in the same axial direction at equal intervals; the cleaning tooth group I103 is provided with single rows of cleaning teeth which are positioned between the circumferences of the double rows of cleaning teeth of the cleaning tooth group II 203 and are staggered with each other; rotation axis I101 and rotation axis II 201 drive at the rotatory in-process from cleaning sieve piece ware I and from cleaning sieve piece ware II rotatory, through the single row clearance tooth of clearance tooth group I103 and the double clearance tooth of clearance tooth group II 203 form crisscross reciprocal impact formula mutual cleaning action at rotatory in-process, can accomplish the self-cleaning process at sieve piece cross scope.
The cleaning tooth group I103 and the cleaning tooth group II 203 can be arranged on the circumferences of two sides of the sieve piece I sieve piece 102 of the sieve piece rotating shaft and the sieve piece II sieve piece 202 of the rotating shaft in a single-circle or multi-circle mode, and the cleaning capacity is further improved.
The cleaning teeth are rod bodies, prism bodies or frustum bodies.
Similarly, the structure of the rotating shaft III assembly 300 and the rotating shaft IV assembly 400 is similar and will not be described.
The pulse early warning automatic cleaning mechanism I comprises an overload detector I104 and a controller I105, wherein the overload detector I104 is installed at the lower end of a rotating shaft I101, load change of the rotating shaft I101 is monitored in real time through the overload detector 104, the overload detection effective range is set to be 0-2.5 times of rated load, when rotating bearing load moment exceeds the numerical value of 1.2-1.5 times of a specified motor, an abnormal pulse signal is transmitted to the controller I105, the controller I105 opens a high-pressure gas or/liquid impact part, external high-pressure gas or high-pressure water enters a hollow rotating shaft, high-pressure gas or high-pressure water is sprayed out through an I106 radial spraying hole of the rotating shaft I101, and materials adhered to the rotating shaft I101 and a sieve piece 102 of the rotating shaft I are subjected to impact cleaning in a pulse mode.
The overload detector 104 is installed as a spacer shaft, so that real-time rotating torque load monitoring and early warning are realized for each group of staggered mutual impact rotating mechanisms.
The play generating mechanism I is arranged at two ends of the rotating shaft II assembly 200, the axial displacement distance H of the rotating shaft II 201 is less than 2 delta, and delta is the minimum average clearance on one side of the sieve sheet; the mechanism carries out the axial float through the float takes place for rotation axis II 201, drives II 203 in the clearance tooth group on II sieve pieces 202 of the II external diameter coupling installation rotation axis of rotation axis and moves between two sets of sieve pieces that I assembly 100 of rotation axis is adjacent, plays the effect of vibrations to the material of whereabouts, and simultaneously, the clearance tooth group of crisscross mutual attack carries out material clearance each other.
The play generating mechanism I is arranged as a partition shaft, so that the material screening process is regularly vibrated and loosened, and the falling of the material is smoother and smoother.
The play generating mechanism I is a plane cam device which is coaxially arranged oppositely and comprises a fixed plane cam I204 and a movable plane cam I205, the rotating shaft II 201 is driven to axially play through the relative displacement of the movable plane cam I205 and the fixed plane cam I204, the movable plane cam I205 and the fixed plane cam I204 are pushed to be always attached to each other on the axial plane along with the extrusion of materials in the screening mechanism, and the dynamic play of the rotating shaft II 201 is realized.
Similarly, the structure of the play generator mechanism II and the structure of the pulse early warning automatic cleaning mechanism II are similar and are not described.
The self-cleaning principle of the staggered mutual-impacting self-cleaning screening device of the present invention is described in detail with reference to fig. 6, 7 and 8.
As shown in fig. 6, in the crossing range of rotary shaft iii sieve sheet 302 and rotary shaft iv sieve sheet 402, rotary shaft iii sieve sheet 302 rotates counterclockwise and upward, rotary shaft iv sieve sheet 402 rotates clockwise and downward, and the two sets of sieve sheets form opposite movement.
Further, as shown in fig. 7 and 8, starting from the cross contact between the rotary shaft iii cleaning teeth a403 and the rotary shaft iii screen piece 302, the rotary shaft iii cleaning teeth a403 start to clean the material adhered to one side surface of the rotary shaft iii screen piece 302; further, the rotating shaft iii cleaning teeth a403 continuously move downwards around the circle center, the cleaned position point moves upwards along with the rotating shaft iii screen piece 302, and two relative movements of the rotating shaft iii cleaning teeth a403 and the cleaned position point finally form an arc-shaped cleaning track 500; this clearance process is the process of mutual clearance, and every clearance tooth all can form circular-arc orbit 500 on the sieve piece side of the clearance tooth both sides of crossing, and what number of clearance tooth just can form what number of clearance trajectory 600 to realize dynamic, do not need the self-cleaning effect of other mechanisms.
Furthermore, the two groups of adjacent staggered and mutually impacted rotating mechanisms I and II, the rotating shaft I assembly 100, the rotating shaft II assembly 200, the rotating shaft III assembly 300 and the rotating shaft IV assembly 400 are cleaned mutually, and two adjacent crossed sieve sheets can be cleaned simultaneously on two sides of a cleaning tooth; the cleaning track has wide coverage range, extends to the position near the rotating shaft diameter from the edge of the sieve sheet and continues to the edge of the sieve sheet, thereby realizing full cleaning from the edge to the position near the shaft diameter; the self-cleaning of the sieve sheet is a dynamic cleaning process, and the sieve sheet is continuously cleaned in the moving process of adjacent rotating shaft assemblies, so that the adhered materials cannot be accumulated.
The utility model discloses a use or operating condition:
the external motor passes through reduction gear drive rotary mechanism anticlockwise rotation, the material is sieved and is flowed along the below-oblique direction, the material sieve flows and removes the in-process of upset, the material gets into I assembly 100 of adjacent rotation axis, II assemblies 200 of rotation axis, III assemblies 300 of rotation axis, between two sets of adjacent crisscross sieve pieces of IV assembly 400 of rotation axis, the crisscross reciprocal strike formula self-cleaning through the fixed clearance tooth group of sieve piece both sides coupling, vibrations many times, the material that closes examination is fallen down from the screening plant, the material that can't sieve slides along the screening plant slant, reach the screening effect of material.
Further, the play generating mechanism is arranged at the lower ends of a rotating shaft assembly II and a rotating shaft assembly IV 400, a moving plane cam I205 and a moving plane cam II 410 on the rotating shafts II 201 and IV 401 form a play function in the axial direction through a relative fixed plane cam I204 and a relative fixed plane cam II 409 during rotation, further, cleaning teeth of sieve sheets installed on the rotating shafts II 201 and the rotating shafts IV 401 in an outer diameter coupling mode move between two adjacent groups of sieve sheet cleaning teeth of the rotating shaft assembly I200 and the rotating shaft assembly III 400, a vibration effect is further achieved on falling materials, meanwhile, the cleaning tooth groups which are mutually impacted in a staggered mode carry out close-range material cleaning, and the generation of a disc brake effect in the material screening process is avoided.
If materials are screened, the materials are adhered to the screen plates and the cleaning teeth to form a disc brake effect, the rotating shaft is overloaded, the overload detector I104 and the overload detector III 304 which are arranged on one side of the rotating shaft through the partition shaft are arranged to monitor and early warn in real time, pulse signals are generated and transmitted to the controller I after the numerical value of the overload detector I104 and the overload detector III 304 exceeds the rated load by 1.2-1.5 times, the controller I105 and the controller II 305 open a control switch of high-pressure water or high-pressure gas, the externally-connected high-pressure gas or high-pressure water enters the hollow rotating shaft I101, the rotating shaft II 201, the rotating shaft III 301 and the rotating shaft IV 401, the materials adhered to the rotating shaft and the screen plates are cleaned through high-pressure ejection of radial ejection holes of the rotating shaft I101, the rotating shaft II 201, the rotating shaft II 301 and the rotating shaft IV 401, and the disc brake effect of material screening is eliminated under the combined action of staggered mutual impact type self-cleaning, shaft movement vibration and pulse type self-cleaning of the cleaning tooth groups.
In the same device, the structures, sizes, and rotation directions of the rotating shaft assemblies are similar and the same, in this embodiment, only two adjacent sets of staggered mutually impacting rotating mechanisms are selected for description, and the self-cleaning screen device on each rotating shaft assembly is provided with cleaning teeth, but not limited to two sets of staggered mutually impacting rotating mechanisms, and may be multiple sets of adjacent staggered mutually impacting rotating mechanisms.
Example two
As shown in fig. 9 and 10, a staggered mutual impact type self-cleaning screening device includes a common screening rotary structure and staggered mutual impact rotary mechanisms, two common rotary shafts without cleaning teeth are respectively arranged on two sides of two rotary shafts of the staggered mutual impact rotary mechanisms, and a rotary shaft assembly screen sheet of a normal screening rotary mechanism has no staggered mutual impact cleaning teeth and has no self-cleaning function.
The staggered mutually-impacting rotating mechanism I and the staggered mutually-impacting rotating screening mechanism II are arranged in a manner of separating shafts, and similarly, the rotating mechanism I for rotating staggered mutually-impacting comprises a rotating shaft I assembly 100 and a rotating shaft II assembly 200, and the staggered mutually-impacting rotating screening mechanism II comprises a rotating shaft III assembly 300 and a rotating shaft IV assembly 400.
Further, the screen piece 102 of the rotating shaft I rotates to drive the cleaning tooth group I103 to rotate to mutually hit and self-clean the screen piece 202 of the adjacent rotating shaft II on the right side, and meanwhile, the cleaning tooth group I103 of the screen piece 102 of the rotating shaft I cleans the adjacent common screen piece on the left side; similarly, the cleaning teeth II 203 of the sieve sheet 202 of the rotating shaft II clean the adjacent common sieve sheet on the right side; similarly, the cleaning tooth group of the screen piece 302 of the rotating shaft III and the cleaning tooth group of the screen piece 402 of the rotating shaft IV are mutually impacted and self-cleaned, and simultaneously, the common screen pieces adjacent to both sides are cleaned.
The above-mentioned embodiment does the utility model discloses the implementation scheme of preferred, in addition, the utility model discloses can also realize through other modes, can carry out various changes and modifications under the scope of not deviating from above-mentioned application for patent range and spirit, all the foundation the utility model discloses a technical entity is to any simple modification, equivalent change and modification of doing of above-mentioned embodiment, all belongs to the technical scheme's of the utility model scope.
In order to facilitate the understanding of the improvements of the present invention over the prior art by those skilled in the art, some of the drawings and descriptions of the present invention have been simplified and some other elements have been omitted for clarity, and those skilled in the art will recognize that these omitted elements also constitute the content of the present invention.
Claims (10)
1. A staggered mutual-impacting type self-cleaning screening device comprises an inclined downward conveying and arranging multiple groups of staggered mutual-impacting rotary screening mechanisms, a play generating mechanism and a pulse early warning automatic cleaning mechanism, wherein the staggered mutual-impacting rotary screening mechanisms are adjacently arranged or are arranged at intervals, each staggered mutual-impacting rotary screening mechanism comprises one group, two groups or multiple groups of adjacent rotating shaft assemblies, and the adjacent rotating shaft assemblies are arranged in a staggered way; the method is characterized in that: the rotating shaft assembly comprises a rotating shaft and a self-cleaning screening device which is equidistantly coupled and arranged on the outer surface of the rotating shaft; the rotary shaft is of a hollow structure, radial injection holes are axially distributed on the rotary shaft, and the injection holes are close to two sides of the self-cleaning screen piece device; the self-cleaning screening device comprises a rotating shaft screening piece and a cleaning tooth group; the rotary shaft sieve sheets are arranged in a circular disc shape and are arranged on the rotary shaft at equal intervals; the cleaning tooth groups are symmetrically distributed on two sides of the rotating shaft screen sheet; the coaxial cleaning tooth groups are arranged in phase.
2. A staggered, interbroked, self-cleaning screening device according to claim 1, wherein: the adjacent center distance L of the rotating shafts meets the following conditions:
R+d 1 <L<2R-θ
r is the radius of the sieve sheet
d 1 Outer diameter of rotating shaft
And theta is the safety margin.
3. A staggered co-impact self-cleaning screening device in accordance with claim 1, wherein: the rotating shaft assembly is arranged to rotate synchronously in the same direction; the phase difference of cleaning teeth of adjacent rotating shafts is 0-360/(2 x n), wherein n is the number of the cleaning teeth uniformly distributed in each circle.
4. A staggered, interbroked, self-cleaning screening device according to claim 1, wherein: the self-cleaning screening devices of the rotating shaft are in the same axial direction and are equidistant; the cleaning tooth groups of the coaxial adjacent self-cleaning screening devices are mutually staggered.
5. A staggered, interbroked, self-cleaning screening device according to claim 1, wherein: the cleaning tooth group is uniformly distributed on two sides of the rotating shaft screen sheet in a single circle or multiple circles.
6. A staggered interbroke self-cleaning screening device according to any one of claims 1, 3 and 5, wherein: the cleaning teeth are rod bodies, prism bodies or frustum bodies.
7. A staggered, interbroked, self-cleaning screening device according to claim 1, wherein: the pulse early warning automatic cleaning mechanism comprises an overload detector, a controller and a pulse high-pressure gas/liquid impact part.
8. A staggered, interbroked, self-cleaning screening device according to claim 7, wherein: the overload detector is mounted at one end of the rotating shaft through a separation shaft.
9. A staggered, interbroked, self-cleaning screening device according to claim 1, wherein: the play generating mechanism is arranged at two ends of the rotating shaft assembly, the axial displacement distance H of the rotating shaft is less than 2 delta, and delta is the minimum average clearance on one side of the sieve sheet; the play generating mechanism is mounted at intervals of the shaft.
10. A staggered co-vibrating self-cleaning screening device according to claim 9, wherein: the play generating mechanism is a plane cam device which is coaxially and oppositely arranged.
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| CN202222308012.3U CN218013921U (en) | 2022-08-31 | 2022-08-31 | Staggered mutual impact type self-cleaning screening device |
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| WO2024045763A1 (en) * | 2022-08-31 | 2024-03-07 | 安阳市恒威石化设备有限责任公司 | Staggered mutual-striking self-cleaning screening device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024045763A1 (en) * | 2022-08-31 | 2024-03-07 | 安阳市恒威石化设备有限责任公司 | Staggered mutual-striking self-cleaning screening device |
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