CN114260171A

CN114260171A - Roller screening plant that can self-clean

Info

Publication number: CN114260171A
Application number: CN202111613721.6A
Authority: CN
Inventors: 程建中
Original assignee: Individual
Current assignee: Cheng Yujin
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-04-01

Abstract

The invention provides a self-cleaning roller shaft screening device which comprises a screening bed body, wherein a plurality of roller shafts which are uniformly distributed are arranged on the surface of the screening bed body, two ends of each roller shaft are rotatably connected with the screening bed body, the same end of each roller shaft penetrates through the screening bed body to be positioned at the outer side of the screening bed body and is respectively matched with a rotating wheel, a driving wheel is arranged below the middle of the adjacent rotating wheel, a driving piece is inserted and wound between the rotating wheel and the driving wheel, the rotating wheel, the driving wheel and the driving piece can be driven by a driving mechanism to drive the roller shafts to rotate in the same direction, a roller shaft cleaning mechanism is arranged above the screening bed body, a plurality of scraper assemblies which move along the axial direction parallel to the roller shafts are arranged at the bottom of the roller shaft cleaning mechanism, and the surfaces and gaps of the roller shafts can be cleaned. The roller shaft screening device can efficiently clean the surface and gaps of a roller shaft, can stably run for a long time in a severe environment, keeps a through roller gap, ensures screening efficiency, and can adapt to screening operation of wet, soft and sticky granular materials.

Description

Roller screening plant that can self-clean

Technical Field

The invention relates to the technical field of material screening, in particular to a roller shaft screening device capable of self-cleaning.

Background

In industries such as metallurgy, electric power, coal, chemical industry, fertilizer, mine, ceramics and the like, various solid powdery or granular materials are required to be screened.

At present, the screening equipment commonly used at home and abroad mainly comprises a fixed slide screen, a swing screen, a linear vibrating screen, a circular vibrating screen, an elliptical vibrating screen, a double-mass vibrating screen, a rotary vibrating screen, a relaxation screen, an equal-thickness screen, an ultrasonic vibrating screen, a rotary screen and the like; compared with the screening equipment of the type, the screening efficiency of the roller screen is in a disadvantage, and because the manufacturing cost is higher, the machining parts are more, the manufacture is more complicated, in case of the screen bed consisting of a plurality of rollers in the operation process, one roller stops rotating when a fault occurs, the whole machine stops production, the use tolerance of the equipment is poorer, and therefore, the usage amount of the roller screen in the whole market is smaller.

However, in the sorting operation of wet, soft and viscous spherical granular materials, the roller shaft screen has far more advantages than other types of screening equipment, because the roller shaft screen is a screen roller bed formed by arranging dozens of roller shafts, the material conveying and screening are completed by the co-directional rolling of a plurality of rollers, the movement structure of the roller shaft screen is not easy to cause the fragmentation of the wet, soft and viscous spherical granular materials, and even has the characteristics of rounding, filling and increasing the compactness of spherical granules, which is irreplaceable for other types of screening equipment.

However, when the roller screen is used for screening wet, soft and sticky spherical granular materials, the roller screen has the advantages that the materials are large in moisture, large in stickiness, low in hardness, even different in size and fineness of particle sizes, and mixed with impurities, the granular materials are at a high temperature of 60-70 ℃, even contain neutralization reaction of strong acid and strong base, and are rapidly solidified, hardened and hardened, large-area bonding and blocking of screening equipment can be caused, even the materials are rapidly solidified and hardened on the surface of the equipment, mechanical locking of the equipment is caused, once the screen rollers are too much in sticky materials, the roller screen loses screening efficiency, and the roller screen only has a material conveying function.

In view of the above-mentioned reason, this application provides a can be from roller screening plant who cleans, can clean roller surface and gap high-efficiently, can stable permanent operation in abominable site environment, keep penetrating roll gap all the time, guarantee screening efficiency, can adapt to the screening operation of wet, soft, viscidity granule material.

Disclosure of Invention

The invention aims to provide a self-cleaning roller shaft screening device which can efficiently clean the surface and gaps of a roller shaft, keep a through roller gap, ensure the screening efficiency and adapt to the screening operation of wet, soft and sticky granular materials.

The invention provides a roller shaft screening device capable of self-cleaning, which comprises: the sieve bed body, sieve bed body surface mounting has many roller of evenly arranging, the both ends of roller with sieve bed body rotatable coupling, each pass with the one end of roller sieve bed body is located its outside to install with a driving wheel cooperation respectively, it is adjacent the centre below department of rotating the wheel is provided with the drive wheel, rotate the wheel with it has the driving medium to alternate the winding between the drive wheel, rotate the wheel the drive wheel reaches the driving medium can drive under actuating mechanism drives, and then makes each the same direction of roller rotates, the top of sieve bed body is provided with the roller and cleans the mechanism, the bottom that the roller cleaned the mechanism is provided with a plurality of can follow and is on a parallel with the scraper subassembly of the axial direction removal of roller, through scraper subassembly can be right roller surface and clearance clean.

Preferably, the driving mechanism includes a servo motor, a speed reducer and a driving wheel, the servo motor is disposed at one end of the sieve bed body, an output shaft of the servo motor is connected to an input end of the speed reducer, the driving wheel is mounted at an output end of the speed reducer, and the driving wheel drives the rotating wheel and the driving wheel to rotate through the transmission member, so as to drive the rollers to rotate in the same direction.

Preferably, one end of the sieve bed body, which is far away from the driving mechanism, is further provided with a rotatable auxiliary wheel, and the auxiliary wheel is in fit transmission with the transmission part.

Preferably, the rotating wheel, the driving wheel and the auxiliary wheel are chain wheels, and the driving part is a driving chain matched with the chain wheels.

Preferably, the rotating wheel, the driving wheel and the auxiliary wheel are belt pulleys, and the transmission part is a transmission belt matched with the belt pulleys.

Preferably, a protective cover is further mounted on the side surface of the sieve bed body, and the protective cover covers the outer sides of the rotating wheel, the driving wheel and the auxiliary wheel.

Preferably, the roller cleans the mechanism and includes that two erect in through the crossbeam support the crossbeam frame of sieve bed body top, the axis of crossbeam frame with the axis of roller parallels, the side of crossbeam frame is provided with the track and installs the gliding step-by-step slip table of track along, the push rod motor is installed to the one end of crossbeam frame, the push rod motor can promote step-by-step slip table is followed the crossbeam frame removes, fixedly connected with knife rest fixed block on the step-by-step slip table, the scraper mounting bracket is installed to the bottom of knife rest fixed block, the scraper unit mount in the bottom of scraper mounting bracket.

Preferably, the scraper mounting bracket is the long cell body of the U type of invering, scraper component includes scraper blade, torsional spring and blade installation axle, blade installation axle erect in the cell body of scraper mounting bracket, just the axis of blade installation axle with the axis of scraper mounting bracket is mutually perpendicular, the torsional spring install in blade installation epaxial, the scraper blade sets up in scraper component's bottom, the cutting edge of scraper blade is along adjacent the clearance arrangement of roller.

Preferably, still be provided with the baffle of preventing splashing on the sieve bed body, the baffle of preventing splashing is located the both sides of roller, just the surface of the baffle of preventing splashing with sieve bed body surface looks vertical.

Preferably, the surface of the sieve bed body is further provided with a lubricating oil pump, the lubricating oil pump is connected with an oil line pipe bundle through an oil line distributor, and the oil line pipe bundle is provided with a plurality of quick-insertion type oil nozzles.

According to the technical scheme, the roller shaft cleaning mechanism is arranged on the sieve bed body, and the scraper component cleans the surfaces of the rotating roller shafts and the gaps of the roller shafts along the gaps of the roller shafts, so that viscous materials adhered to the surfaces of the roller shafts when wet, soft and viscous granular materials are screened can be cleaned in time, the situation that the screening equipment is adhered and blocked in a large area after the materials are quickly solidified, hardened and hardened is prevented, even mechanical locking is generated after the materials are quickly solidified and hardened is avoided, the screening equipment can stably run for a long time in a severe field environment, a through roller gap is always kept, and the screening efficiency is guaranteed. The screening device can be widely applied to industries such as metallurgy, electric power, coal, chemical industry, fertilizer, mine, ceramics and the like, and can be fully suitable for screening operation of wet, soft and sticky granular materials in the industries.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Figure 1 is an isometric view of the overall construction of a roller screening device of the present invention;

FIG. 2 is a front view of the overall construction of the roller screening device of the present invention;

FIG. 3 is a schematic structural view of a roller cleaning mechanism according to the present invention;

FIG. 4 is a schematic view of the construction of the doctor assembly of the present invention;

fig. 5 is a schematic view of the lubricating system of the present invention.

Description of reference numerals:

1: a sieve bed body; 2: a roll shaft; 3: a rotating wheel; 4: a driving wheel; 5: a transmission member; 6: a servo motor; 7: a speed reducer; 8: a driving wheel; 9: an auxiliary wheel; 10: a protective cover; 11: a roll shaft cleaning mechanism; 111: a beam support; 112: a cross beam frame; 113: a stepping sliding table; 114: a push rod motor; 115: a tool rest fixing block; 116: a scraper mounting frame; 117: a doctor blade; 118: a torsion spring; 119: a blade mounting shaft; 12: a splash guard; 13: a lubricating oil pump; 14: an oil way distributor; 15: an oil line bundle; 16: insert formula glib talker soon.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The invention provides a self-cleaning roller shaft screening device which is mainly applied to industries such as metallurgy, electric power, coal, chemical industry, fertilizer, mine, ceramics and the like, and is particularly used for screening wet, soft and sticky granular materials in the industries.

As shown in fig. 1 and 2, the roller sifting device includes: sieve bed body 1, sieve bed body 1 surface mounting has many roller 2 of evenly arranging, the both sides top of sieve bed body 1 is erect at the both ends of roller 2, and pass through bearing rotatable coupling with the side group of sieve bed body 1, the side group that sieve bed body 1 was passed with every roller 2 is located its outside with the one end, and be located its outside one end and install and rotate wheel 3, rotate wheel 3 and pass through the keyway with the tip of roller 2 and be connected, make roller 2 can rotate along with rotating wheel 3. The middle lower part of every two adjacent rotating wheels 3 is provided with a driving wheel 4, the driving wheel 4 is rotatably connected with the sieve bed body 1, the rotating wheels 3 and the adjacent driving wheels 4 are sequentially alternated and wound through a driving part 5, the rotating wheels 3 and the driving wheel 4 can be driven to rotate together through the driving part 5, the driving part 5 can drive to transmit under the driving of a driving mechanism, and then each roller shaft 2 is driven to rotate in the same direction.

In this embodiment, actuating mechanism includes servo motor 6, reduction gear 7 and action wheel 8, servo motor 6 is fixed in the one end of sieve bed body 1, servo motor 6's output shaft is connected with reduction gear 7's input, action wheel 8 passes through belt transmission cooperation with reduction gear 7's output, and action wheel 8's pivot also parallels with the axis of each roller 2, and action wheel 8 sets up in the homonymy that rotates wheel 3, action wheel 8 is walked around to driving medium 5, through action wheel 8 and driving medium 5, can drive and rotate wheel 3 and drive wheel 4 together, and then drive each roller 2 and rotate to same direction. Through rotation wheel 3 and drive wheel 4 of arranging about crisscross, when making each roller 2 rotate, guarantee driving medium 5 and the area of contact who rotates wheel 3 and drive wheel 4, make each part can steady transmission, avoid droing when the transmission and cause unable normal transmission, influence normal screening operation.

In this embodiment, a rotatable auxiliary wheel 9 is further installed at one end of the sieve bed body 1 far away from the driving mechanism, the auxiliary wheel 9 is in transmission with the transmission member in a matching manner, and the tension of the transmission member 5 can be ensured through the auxiliary wheel 9.

In this embodiment, the rotating wheel 3, the driving wheel 4 and the auxiliary wheel 9 all adopt chain wheels, the driving member 5 adopts a driving chain matched with the chain wheels, and the driving wheel 8 is a composite wheel, and is not only in transmission fit with the output end of the speed reducer 7 through a belt, but also in transmission with the rotating wheel 3, the driving wheel 4 and the auxiliary wheel 9 through the driving chain.

In another embodiment, the rotating wheel 3, the driving wheel 4 and the auxiliary wheel 9 are belt pulleys, the driving member 5 is a driving belt adapted to the belt pulleys, and the driving wheel 8 is capable of cooperating with the two driving belts, so that the rotating wheel 3, the driving wheel 4 and the auxiliary wheel 9 are driven to rotate by the driving belt under the driving of the belt with the output end of the reducer 7.

In this embodiment, a protective cover 10 is further installed on the side surface of the sieve bed body 1, the protective cover 10 is detachably connected to the side surface of the sieve bed body 1, and the protective cover 10 covers the outer sides of the rotating wheel 3, the driving wheel 4 and the auxiliary wheel 9 to protect each driving part.

As shown in fig. 1, a roller cleaning mechanism 11 is disposed above the sieve bed body 1, a plurality of scraper assemblies capable of moving in a direction parallel to the axial direction of the roller 2 are disposed at the bottom of the roller cleaning mechanism 11, and the surface and the gap of the roller 2 can be efficiently cleaned by the scraper assemblies. The outer side of the roller cleaning mechanism 11 is provided with a splash-proof baffle 12, the surface of the splash-proof baffle 12 is perpendicular to the surface of the sieve bed body 1, and materials can be prevented from splashing when the roller cleaning mechanism 11 performs cleaning operation.

Specifically, as shown in fig. 3 and 4, the roller shaft cleaning mechanism 11 includes two cross beam frames 112 erected above the sieve bed body 1 through the cross beam support 111, the axis of the cross beam frame 112 is parallel to the axis of the roller shaft 2, the side surface of the cross beam frame 112 is provided with a track, a stepping sliding table 113 capable of sliding along the track is installed on the track, a push rod motor 114 is installed at one end of the cross beam frame 112, the end portion of a push rod of the push rod motor 114 is fixedly connected with the stepping sliding table 113, the stepping sliding table 113 can be pushed to move along the cross beam frame 112, a knife rest fixing block 115 is fixedly connected to the stepping sliding table 113, the knife rest fixing block 115 extends downwards, the bottom of the knife rest fixing block is fixedly connected with the scraper mounting frame 116 through a fastener, and the scraper assembly is installed at the bottom of the scraper mounting frame 116.

Specifically, scraper mounting bracket 116 is the long cell body of the U type of invering, scraper assembly includes scraper blade 117, torsional spring 118 and blade installation axle 119, blade installation axle 119 erects in scraper mounting bracket 116's the cell body, and the axis of blade installation axle 119 is installed on blade installation axle 119 with the perpendicular torsional spring 118 of axis looks of scraper mounting bracket 116, the bottom of scraper blade 117 is to a lateral buckling, and the cutting edge of scraper blade 117 arranges along the clearance direction of adjacent roller 2, can make scraper blade 117 cutting edge hug closely the roller 2 surface through torsional spring 118 effect and clean it. Remove along roller 2 gap through scraper blade 117, cooperate the rotation of roller 2, can clear up the material that blocks up between roller 2 surface bonding's material and roller 2 gap, prevent the material rapid hardening, harden, the sclerosis back, cause screening equipment to bond by a large scale and block up, produce mechanical locking after the rapid hardening even, make screening equipment can stable permanent operation in abominable site environment, keep penetrating roll gap all the time, guarantee screening efficiency.

In this embodiment, the roller screening device is further provided with a lubricating system, as shown in fig. 5, the lubricating system includes a lubricating oil pump 13 installed on the surface of the screening bed body 1, the lubricating oil pump 13 is a high-pressure oil pump and is lubricated in a grease lubricating manner, the lubricating oil pump 13 is connected with an oil line pipe harness 15 through an oil line distributor 14, a plurality of quick-insertion type oil nozzles can be arranged on the oil line pipe harness 15, and the quick-insertion type oil nozzles can be arranged on one side or the bottom of the rotating wheel 3, the driving wheel 4, the driving wheel 8 and the auxiliary wheel 9 and are used for lubricating each transmission component, so as to ensure smooth and stable transmission.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A self-cleaning roller screening device, comprising: the sieve bed body, sieve bed body surface mounting has many roller of evenly arranging, the both ends of roller with sieve bed body rotatable coupling, each pass with the one end of roller sieve bed body is located its outside to install with a driving wheel cooperation respectively, it is adjacent the centre below department of rotating the wheel is provided with the drive wheel, rotate the wheel with it has the driving medium to alternate the winding between the drive wheel, rotate the wheel the drive wheel reaches the driving medium can drive under actuating mechanism drives, and then makes each the same direction of roller rotates, the top of sieve bed body is provided with the roller and cleans the mechanism, the bottom that the roller cleaned the mechanism is provided with a plurality of can follow and is on a parallel with the scraper subassembly of the axial direction removal of roller, through scraper subassembly can be right roller surface and clearance clean.

2. The self-cleaning roller screening device according to claim 1, wherein the driving mechanism comprises a servo motor, a speed reducer and a driving wheel, the servo motor is disposed at one end of the screening bed body, an output shaft of the servo motor is connected with an input end of the speed reducer, the driving wheel is mounted at an output end of the speed reducer, and the driving wheel drives the rotating wheel and the driving wheel to rotate through the transmission member, so as to drive the rollers to rotate in the same direction.

3. A self-cleaning roller screening device as claimed in claim 2, wherein a rotatable auxiliary wheel is further mounted on the end of the screening bed body remote from the drive mechanism, the auxiliary wheel being in driving engagement with the drive member.

4. A self-cleaning roller screening device as claimed in claim 3, wherein said rotatable wheel, said drive wheel and said auxiliary wheel are sprockets and said drive member is a drive chain adapted to said sprockets.

5. A self-cleaning roller screening apparatus as claimed in claim 3, wherein said rotatable wheels, said drive wheels and said auxiliary wheels are belt pulleys, and said drive member is a drive belt adapted to said belt pulleys.

6. The self-cleaning roller screening device of claim 3, wherein a protective cover is further installed on the side surface of the screening bed body, and the protective cover covers the outer sides of the rotating wheel, the driving wheel and the auxiliary wheel.

7. The roller screening plant that can self-clean according to claim 1, characterized in that, the roller cleans the mechanism and includes that two erect in through the crossbeam support the crossbeam frame of sieve bed body top, the axis of crossbeam frame with the axis of roller parallels, the side of crossbeam frame is provided with the track and installs the step-by-step slip table that can follow the track gliding, the push rod motor is installed to the one end of crossbeam frame, the push rod motor can promote step-by-step slip table is followed the crossbeam frame removes, fixedly connected with knife rest fixed block on the step-by-step slip table, the scraper mounting bracket is installed to the bottom of knife rest fixed block, the scraper subassembly install in the bottom of scraper mounting bracket.

8. The roller screening device capable of self-cleaning according to claim 7, wherein the scraper mounting frame is an inverted U-shaped long groove body, the scraper assembly comprises a scraper blade, a torsion spring and a blade mounting shaft, the blade mounting shaft is erected in the groove body of the scraper mounting frame, the axis of the blade mounting shaft is perpendicular to the axis of the scraper mounting frame, the torsion spring is mounted on the blade mounting shaft, the scraper blade is arranged at the bottom of the scraper assembly, and the cutting edge of the scraper blade is arranged along the gap between the adjacent roller shafts.

9. The self-cleanable roller screening device according to claim 1, wherein the screen bed body is further provided with splash-proof baffles, the splash-proof baffles are positioned on two sides of the roller, and the surfaces of the splash-proof baffles are perpendicular to the surface of the screen bed body.

10. The self-cleaning roller screening device according to claim 1, wherein a lubricant pump is further disposed on the surface of the screen bed body, the lubricant pump is connected to the oil line pipe bundle through an oil line distributor, and a plurality of quick-insertion type oil nozzles are disposed on the oil line pipe bundle.