CN220239179U - Protective layer raw material screening device - Google Patents

Abstract

The utility model belongs to the technical field of protective material production, in particular to a protective layer raw material screening device, which comprises a screening box; a rotary shaft is arranged below the feed inlet, a material returning spiral is welded on the rotary shaft, a driving wheel and a second rotating wheel are respectively arranged at two ends penetrating through the box body part, the first rotating wheel and the second rotating wheel are matched to rotate through a first belt, an arc coarse screen is arranged below the rotary shaft, a secondary filtering fine screen is obliquely arranged below the arc coarse screen, a fixed shaft is arranged at one end of the secondary filtering fine screen which is obliquely downwards, the vibrating shaft is arranged below the other end of the secondary filtering fine screen, the vibrating wheel is arranged below the secondary filtering fine screen, the other end of the secondary filtering fine screen penetrates through the box body and is provided with the driven wheel, the driving wheel and the driven wheel are matched and rotate through a second belt, the needle bar is fixedly arranged below the secondary filtering fine screen, and through the settings, the screening of the screen body is smooth in the screening process of materials, and the screening efficiency is stable.

Description

Protective layer raw material screening device

Technical Field

The utility model relates to the technical field of protective material production, in particular to a protective layer raw material screening device.

Background

The protective layer is made of rock soil or other materials which can play a role in protecting the periphery of the enclosure structure. Mortar concrete structure is generally adopted in the construction engineering, sand is used as raw materials, and common river sand often contains large-particle broken stones, cannot be directly used and can be used after screening. The general screening device has two kinds of rotary screen and vibrating screen.

The general vibrating screen consists of a screen body, a vibrating device, a screen body mounting frame and a motor. When the sand sieving machine is used, the motor is started, the motor drives the vibrating device to vibrate the screen body at the upper end of the device, river sand is poured onto the screen body, the screen body screens the river sand, larger broken stone particles can be left on the screen body, and the river sand passing through the screen body can be used.

The existing screening device has the defects of incomplete screening and easy blockage, and influences the screening efficiency; therefore, a screening device for raw materials of protective layers is provided for solving the problems.

Disclosure of Invention

In order to overcome the defects of the prior art, the prior screening device has the problems that screening is incomplete and blockage is easy to occur to influence screening efficiency, and the utility model provides a screening device for raw materials of a protective layer.

The technical scheme adopted for solving the technical problems is as follows: the utility model relates to a screening device for raw materials of a protective layer, which comprises a screening box; the screening box comprises a screening box body, a screening box, a motor, a first rotating wheel, a rotating shaft, a returning screw, a driving wheel and a second rotating wheel, wherein the upper part of the screening box body is provided with a feeding hole, a base is welded on one side of the screening box, the motor is fixedly arranged on the base, the front end of the rotating shaft of the motor is provided with the first rotating wheel, the lower part of the feeding hole is provided with the rotating shaft, the rotating shaft is welded with the returning screw, two ends of the rotating shaft are arranged in the box body through bearings, the two ends penetrate through the box body and are respectively provided with the driving wheel and the second rotating wheel, the first rotating wheel and the second rotating wheel are matched to rotate through a first belt, an arc-shaped coarse sieve is arranged below the rotating shaft, a secondary filtering fine sieve is obliquely arranged below the arc-shaped coarse sieve, one end of the secondary filtering fine sieve is obliquely arranged with a fixed shaft, the two ends of the fixed shaft are arranged on the box body through bearings, the utility model discloses a secondary filter fine screen, including the box inner wall, the secondary filter fine screen, vibrating axle, the vibrating axle is installed to secondary filter fine screen other end below, vibrating axle one end passes through the bearing and installs the vibrating wheel in the part of secondary filter fine screen below, and its other end runs through the box and installs from the driving wheel, drive wheel and from the driving wheel between through the cooperation of No. two belts and rotate, secondary filter fine screen below fixed mounting has the needle bar, and current sieving mechanism has the shortcoming that the screening is incomplete, take place the jam easily, influences screening efficiency, carries out twice screening through arc coarse screen and secondary filter fine screen to the material and clears up most impurity, dredges the sieve mesh of secondary filter fine screen through the needle on the needle bar, keeps the sieve mesh unobstructed, and screening efficiency is stable.

Preferably, the arc coarse strainer is laminated with the spiral of returning material, arc coarse strainer one end runs through the box, and the material leaves large granule impurity through the coarse strainer and holds the jam sieve mesh on the sifting plane, and shut down the clearance and influence screening efficiency, through the cooperation of returning material spiral and arc coarse strainer, clear up large granule impurity to one side, the arc coarse strainer can last the screening, has improved screening efficiency.

Preferably, a material returning opening is formed below the second rotating wheel on the screening box, large-particle impurities are cleaned to be accumulated at one end of the arc-shaped coarse screen, the material returning spiral is prevented from rotating when the large-particle impurities are accumulated to a certain extent, damage is caused to the arc-shaped coarse screen and the material returning spiral, and the large-particle impurities can be automatically cleaned out of the screening box through the material returning opening, so that the material returning spiral runs smoothly.

Preferably, the one end box that secondary filter fine screen downward sloping is last to open has No. two material return mouthfuls, and secondary filter screen carries out the secondary screening to the material through the coarse screen, and the impurity of screening is left at the secondary filter fine screen, easily causes impurity to pile up in the screening case, and the clearance is also inconvenient, through No. two material return mouthfuls and slope secondary filter fine screen cooperation, the impurity of screening is discharged through No. two material return mouthfuls by oneself.

Preferably, the secondary filtering fine screen is vibrated in an arc line by taking the fixed shaft as the center, the front end of the secondary filtering fine screen can retreat to enable the secondary filtering fine screen to fall off during vibration, and the secondary filtering fine screen can be fixed through the fixed shaft to prevent the secondary filtering fine screen from falling off.

Preferably, the needle on the needle bar passes through the sieve holes when the secondary filtering fine screen vibrates downwards, breaks away from the sieve holes when vibrating upwards, and the shape of the material particles is irregular, so that the sieve holes on the secondary filtering fine screen are easy to be blocked in the screening process, the needle head passes through the sieve holes when the secondary filtering fine screen vibrates to the lowest point, and is far away from the sieve holes when vibrating to the highest point, so that the sieve holes are quickly cleaned, and the smoothness of the sieve holes is kept.

The utility model has the advantages that:

1. according to the utility model, when the material returning spiral on the rotating shaft and the arc screen mesh rotate, larger broken stone particles in river sand are screened out in a matching manner, the screened river sand continuously falls to the secondary filter screen through the first material returning opening, the secondary filter screen performs vibration screening through the vibration wheel arranged on the vibration shaft, and river sand meeting the standard is screened out.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic view of the overall rear side structure;

FIG. 2 is a right side schematic view of the whole;

FIG. 3 is a schematic view of the internal structure of the whole screening box;

FIG. 4 is a cross-sectional view of the whole;

fig. 5 is a vertical cross-sectional view of the whole.

In the figure: 1. a screening box; 2. a motor; 3. a first belt; 4. a second belt; 5. a driving wheel; 6. driven wheel; 7. a feed inlet; 8. a first rotating wheel; 9. a second rotating wheel; 10. a second material returning port; 11. a first material returning opening; 12. a rotation shaft; 13. arc coarse screening; 14. secondary filtering and fine sieving; 15. a vibration shaft; 16. vibrating wheels; 17. a fixed shaft; 18. a needle row.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 5, a screening device for raw materials of a protective layer comprises a screening box 1; the upper part of the screening box 1 is provided with a feed inlet 7, one side of the screening box 1 is welded with a base, a motor 2 is fixedly arranged on the base, the front end of a rotating shaft of the motor 2 is provided with a first rotating wheel 8, a rotating shaft 12 is arranged below the feed inlet 7, a material returning spiral is welded on the rotating shaft 12, two ends of the rotating shaft 12 are arranged in the box through bearings, a driving wheel 5 and a second rotating wheel 9 are respectively arranged at two ends penetrating through the box, the first rotating wheel 8 and the second rotating wheel 9 are matched and rotated through a first belt 3, an arc-shaped coarse screen 13 is arranged below the rotating shaft 12, a secondary filtering fine screen 14 is obliquely arranged below the arc-shaped coarse screen 13, a fixed shaft 17 is arranged at one end of the secondary filtering fine screen 14 which is inclined downwards, two ends of the fixed shaft 17 are arranged on a box body through bearings, a vibrating shaft 15 is arranged below the other end of the secondary filtering fine screen 14, one end of the vibrating shaft 15 is arranged on the inner wall of the box body through bearings, a vibrating wheel 16 is arranged at the part below the secondary filtering fine screen 14, the other end of the vibrating shaft penetrates through the box body and is provided with a driven wheel 6, the driving wheel 5 and the driven wheel 6 are matched and rotate through a second belt 4, and a needle bar 18 is fixedly arranged below the secondary filtering fine screen 14; during operation, the existing screening device has the defects that screening is incomplete and blockage occurs easily, screening efficiency is affected, the screening efficiency is influenced, materials are screened and removed twice through the arc-shaped coarse screen 13 and the secondary filtering fine screen 14, the screen holes of the secondary filtering fine screen 14 are dredged through the needle heads on the needle bars 18, the screen holes are kept smooth, screening efficiency is stable, the materials fall on the arc-shaped coarse screen 13 through the inner head materials of the screening box 1 of the feed inlet 7, the motor 2 is started, the motor 2 drives the first rotating wheel 8 to rotate through the rotating shaft, the second rotating wheel 9 matched with the first rotating wheel 8 to rotate along with the first rotating wheel 3, the rotating shaft 12 is driven to rotate, the screened large-particle impurities on the arc-shaped coarse screen 13 are pushed to the first material returning opening 11 to be discharged out of the box body through the spiral rotation of the first rotating wheel, meanwhile, the driving wheel 5 installed at the other end of the rotating shaft 12 drives the driven wheel 6 connected through the rotation of the second rotating belt 4, the vibrating shaft 15 connected with the driven wheel rotates along with the vibrating shaft, the vibrating wheel 16 installed on the vibrating shaft 15 rotates and acts on the secondary filtering fine screen 14, the second filtering fine screen 14 is enabled to take the fixed shaft 17 as a center arc, meanwhile, the second rotating wheel 17 rotates along with the second rotating wheel 9 and drives the second rotating wheel 9 matched with the first rotating wheel 3 to rotate with the first rotating wheel and the second rotating wheel 3 to rotate, the first rotating wheel 3 to rotate, the second large-particle impurities and the screened out of the screened large-particle impurities on the second filtering fine screen through the second rotating material through the second rotating wheel.

The arc-shaped coarse screen 13 is in spiral fit with the material returning, and one end of the arc-shaped coarse screen 13 penetrates through the box body; during operation, the material leaves large granule impurity and holds the jam sieve mesh on the sifter through the coarse screen, and shut down the clearance and influence screening efficiency, through material returning spiral and 13 cooperation of arc coarse screen, with large granule impurity to one side clearance, 13 can last the screening of arc coarse screen, has improved screening efficiency, 13 at the washing needs dismantlement, opens the box and dismantles 13 more troublesome of arc coarse screen, 13 through-hole dismantlement installation arc coarse screen, convenient and fast.

A first material returning opening 11 is formed below the second rotating wheel 9 on the screening box 1; during operation, large-particle impurities are cleaned to one end of the arc-shaped coarse screen 13 and are accumulated, the material returning spiral is prevented from rotating to a certain extent, damage is caused to the arc-shaped coarse screen 13 and the material returning spiral, and the large-particle impurities can be automatically cleaned out of the screening box 1 through the material returning opening 11, so that the material returning spiral runs smoothly.

The secondary filtering fine screen 14 vibrates in an arc line by taking the fixed shaft 17 as the center; when the secondary filter fine screen 14 works, the front end of the secondary filter fine screen 14 can retreat to fall off when vibrating, and the secondary filter fine screen 14 can be fixed through the fixed shaft 17 to prevent the secondary filter fine screen from falling off.

A second material returning opening 10 is formed in the box body at one end of the secondary filtering fine screen 14 which is inclined downwards; during operation, the secondary filtering fine screen 14 carries out secondary screening on the materials passing through the coarse screen, the screened impurities are left in the secondary filtering fine screen 14, the impurities are easily accumulated in the screening box 1, the cleaning is inconvenient, and the screened impurities are automatically discharged through the second material returning 10 openings by matching the second material returning openings with the inclined secondary filtering fine screen 14.

The needles on the needle bar 18 pass through the mesh openings when the secondary filter fine screen 14 vibrates downwards and are separated from the mesh openings when the secondary filter fine screen vibrates upwards; during operation, the shape of the material particles is irregular, the screen holes on the secondary filtering fine screen 14 are easy to be blocked in the screening process, the needle heads on the needle bars 18 penetrate through the screen holes when the secondary filtering fine screen 14 vibrates to the lowest point, the screen holes are far away from when the secondary filtering fine screen vibrates to the highest point, the screen holes are cleaned rapidly, and the smoothness of the screen holes is maintained.

The theory of operation, the current sieving mechanism has the shortcoming that the screening is incomplete, take place the jam easily, influence screening efficiency, carry out twice screening through arc coarse screen 13 and secondary filter fine screen 14 and clear away most impurity, pass through needle on the needle bar 18 and dredge the sieve mesh of secondary filter fine screen 14, keep the sieve mesh unobstructed, screening efficiency is stable, pass through 7 screening case 1 inner head materials of feed inlet 7, the material falls on arc coarse screen 13, start motor 2, motor 2 passes through the axis of rotation and drives first rotation wheel 8 rotation, with first rotation wheel 8 cooperation first belt 3 pivoted second rotation wheel 9 rotation thereupon, drive rotation axis 12 rotation, the big granule impurity propelling movement of screening on the arc coarse screen 13 to first material return port 11 and take off the box, simultaneously the drive wheel 5 of rotation axis 12 other end installation drives through second belt 4 rotation connection from the driving wheel 6 rotation, vibration axle 15 that is connected with it follows the rotation, vibration 16 on the vibration axle 15 is installed and is rotated and is done secondary filter fine screen 14 effect to the material, make it regard fixed axle 17 as center pitch arc, simultaneously, carry out the second filter fine screen 14 through the sieve mesh on the needle bar 18 on the needle bar 12, pass through the needle bar 18 and pass through the sieve mesh on the other end of rotation axis of rotation 12, the fine screen mesh is passed through the fine screen mesh of the fine screen 14, the fine screen is passed through the fine screen mesh of the fine screen of material of the fine screen of the top is finished.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims (6)

1. A protective layer raw and other materials sieving mechanism, its characterized in that: comprises a screening box (1); the utility model discloses a vibrating box, including screening case (1) and vibrating box, screening case (1) box upper portion is opened there is feed inlet (7), screening case (1) one side is welded and is equipped with the base, fixed mounting has motor (2) on the base, rotation axis front end of motor (2) installs rotation wheel (8), rotation axis (12) are installed to feed inlet (7) below, the welding has the spiral of returning material on rotation axis (12), rotation axis (12) both ends are installed in the box through the bearing, and both ends run through box part and install drive wheel (5) and No. two rotation wheel (9) respectively, rotation wheel (8) and No. two rotation wheel (9) pass through a belt (3) cooperation rotation, arc coarse screen (13) are installed to rotation axis (12) below, secondary filter fine screen (14) are installed to arc coarse screen (13) below slope, fixed axle (17) are installed to secondary filter fine screen (14) downward sloping one end, the both ends pass through the bearing and install on the box, secondary filter fine screen (14) other end below install drive wheel (5) and No. two rotation wheel (9) respectively, vibration fine screen (15) are installed on vibration box (16) and one end is installed at vibration fine screen (16), the driving wheel (5) and the driven wheel (6) are matched to rotate through a second belt (4), and a needle bar (18) is fixedly arranged below the secondary filtering fine screen (14).

2. A protective layer raw material screening apparatus as claimed in claim 1, wherein: the arc-shaped coarse screen (13) is in spiral fit with the material returning, and one end of the arc-shaped coarse screen (13) penetrates through the box body.

3. A protective layer raw material screening apparatus as claimed in claim 1, wherein: a first material returning opening (11) is formed below the second rotating wheel (9) on the screening box (1).

4. A protective layer raw material screening apparatus as claimed in claim 1, wherein: and a second material returning opening (10) is formed in the box body at one end of the secondary filtering fine screen (14) which is inclined downwards.

5. A protective layer raw material screening apparatus as claimed in claim 1, wherein: the secondary filtering fine screen (14) is vibrated in an arc line by taking the fixed shaft (17) as the center.

6. A protective layer raw material screening apparatus as claimed in claim 1, wherein: the needles on the needle bar (18) pass through the sieve holes when the secondary filtering fine sieve (14) vibrates downwards and are separated from the sieve holes when the secondary filtering fine sieve vibrates upwards.