CN219334936U

CN219334936U - Rotary vibrating screen

Info

Publication number: CN219334936U
Application number: CN202320919347.0U
Authority: CN
Inventors: 王法平; 徐建峰; 李维宏; 齐森森; 赵琪; 陶克仁; 陈高峰
Original assignee: Zhejiang Zhixing Pharmaceutical Co ltd
Current assignee: Zhejiang Zhixing Pharmaceutical Co ltd
Priority date: 2023-04-18
Filing date: 2023-04-18
Publication date: 2023-07-14
Anticipated expiration: 2033-04-18

Abstract

The utility model discloses a rotary vibrating screen, which comprises an excitation device and a screen tray cover, wherein a bottom screen tray, a middle screen tray and a top screen tray are sequentially arranged on the excitation device in an overlapping manner from bottom to top, the screen tray cover can be arranged on the top screen tray in a covering manner, the top of the screen tray cover is connected with a feeding pipe, an intermittent feeding mechanism is arranged in the screen tray cover, the intermittent feeding mechanism comprises a rotary tray which is rotatably arranged in the screen tray cover, the rotary tray can be intermittently communicated with the feeding pipe in the rotating process, the rotary tray can form the effects of intermittent feeding and throwing discharge, the utility model can effectively solve the problem of excessive disposable feeding and can also form the uniform blanking effect, the screening efficiency of the top screen tray is improved, the rotary tray of the utility model also has the rough filtering effect, the agglomerated materials can be blocked in the tray, a scattering component is arranged in the rotary tray, the scattering effect of the agglomerated materials can be formed, and the quality of the materials falling onto the top screen tray is ensured to be stable.

Description

Rotary vibrating screen

Technical Field

The utility model relates to the technical field of pharmaceutical equipment, in particular to a rotary vibration sieve.

Background

The rotary vibrating screen is a high-precision fine powder screening machine, and can make the material make external expansion involute movement on the screen surface screen so as to form good screening effect. Rotary vibrating screens are commonly used in the pharmaceutical industry to screen pharmaceutical powders. Rotary shakers are generally composed of multiple layers of screen discs to provide a graduated screening effect. When the rotary vibration sieve is used, the materials on the sieve tray are not suitable for one-time feeding too much, the excessive feeding can cause material accumulation, the accumulation is caused by untimely sieving, under the untimely sieving condition, partial materials can be directly output from the grading discharging pipe without sieving, thus sieving operation accidents can be caused, sieving operation quality is influenced (the situation is more in the top layer sieve tray, the materials initially enter from the top layer sieve tray, the top layer sieve tray is most easy to have excessive feeding, the material accumulation condition, and the discharged powder of the top layer sieve tray is most easy to have mixed and incomplete sieving conditions).

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide a rotary vibrating screen.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a rotary vibration sieve, includes vibration excitation device and sieve tray lid, bottom sieve tray, middle sieve tray and top sieve tray are installed to the last coincide in proper order from down of vibration excitation device, all be connected with hierarchical discharging pipe on bottom sieve tray, middle sieve tray and the top sieve tray, the sieve tray lid can cover and install on the top sieve tray, sieve tray lid top is connected with the feeding pipe, install intermittent feeding mechanism in the sieve tray lid, intermittent feeding mechanism is including rotating the rotatory charging tray of installing in the sieve tray lid, rotatory charging tray can be at the intermittent type intercommunication feeding pipe of rotation in-process.

The feeding pipe is vertically communicated, the lower opening of the feeding pipe is in contact with the upper end face of the rotary material tray, the rotary material tray is hollow, the upper end face of the rotary material tray is provided with a feeding opening, the feeding opening can be in overlapping communication with the lower opening of the feeding pipe in the rotary material tray rotating process, the lower end face of the rotary material tray is provided with a discharging opening, an inclined slope is arranged in the rotary material tray, and the discharging opening is arranged at the bottom point of the inclined slope.

The intermittent feeding mechanism further comprises a motor and a scattering component, the output end of the motor is connected with a rotary material tray, a coarse filtration screen is arranged on the discharge hole, and the scattering component is arranged above the coarse filtration screen.

The utility model provides a subassembly is broken up including rotating rod frame, bull stick and second drive gear, the bull stick rotates to be connected on the rotating rod frame, the bull stick lower extreme is connected with a plurality of and breaks up the blade, the bull stick upper end is connected with first drive gear, the second drive gear rotates to be installed on the rotating rod frame, second drive gear meshes with first drive gear, install the tooth snare in the screen tray lid, tooth snare suit is in rotatory charging tray outside, be connected with round drive ring gear on the ring gear cover inner wall, second drive gear part extends the rotatory charging tray outside to mesh with the drive ring gear.

And a collecting cone is arranged in the bottom screen tray.

The middle screen tray and the top screen tray are internally provided with a screening filter screen and a collecting funnel, and the collecting funnel is arranged below the screening filter screen.

The collecting hopper is characterized in that a centralized blanking pipe is connected to the lower end face of the collecting hopper, the central position of the lower end face of the collecting hopper is the lowest point of the collecting hopper, and the centralized blanking pipe is connected to the collecting hopper.

The top screen tray adopts a screening filter screen with a horizontal structure, and the middle screen tray adopts a screening filter screen with a central upper arch structure.

The beneficial effects of the utility model are as follows: the rotary material tray is designed, the effects of intermittent feeding and throwing discharging can be formed through the rotary material tray, the problem of excessive disposable feeding can be effectively solved, the uniform blanking effect can be formed, the screening efficiency of the top screen tray is improved, the rotary material tray also has the rough filtering effect, agglomerated materials can be blocked in the material tray, the scattering assembly is arranged in the rotary material tray, the scattering effect of the agglomerated materials can be formed, and the stable quality of the materials falling onto the top screen tray is ensured.

Drawings

FIG. 1 is a front view of the present utility model;

FIG. 2 is a schematic view of the internal structure of the present utility model;

fig. 3 is a schematic view of the structure of the screen tray cover of the present utility model.

In the figure: the vibration excitation device 1, the bottom screen plate 2, the grading discharge pipe 21, the material collecting cone 22, the middle screen plate 3, the screening filter screen 31, the material collecting hopper 32, the concentrated blanking pipe 321, the top screen plate 4, the screen plate cover 5, the material feeding pipe 51, the intermittent feeding mechanism 6, the rotary material plate 61, the material feeding hole 611, the material discharging hole 612, the inclined slope 613, the rough filtering filter screen 614, the motor 62, the scattering component 63, the rotating rod rack 631, the rotating rod 632, the scattering blade 633, the first transmission gear 634, the second transmission gear 635, the gear ring sleeve 636 and the driving gear ring 637.

Detailed Description

The utility model is further described with reference to the drawings and detailed description, wherein the description of the utility model such as "left" and "right" is directed with reference to fig. 1:

as shown in figures 1-3, a rotary vibration screen comprises a vibration excitation device 1 and a screen disc cover 5, wherein a bottom screen disc 2, a middle screen disc 3 and a top screen disc 4 are sequentially arranged on the vibration excitation device 1 in an overlapped manner from bottom to top, the vibration excitation device 1 has the power effect of vibration of the screen disc, the middle screen disc 3 can be provided with a plurality of screen discs on each layer according to requirements, the screen mesh numbers of the screen discs are different, the screen discs are arranged according to a mode of gradually decreasing from top to bottom, after materials pass through one layer of screen discs, the effect of graded screening can be formed, the bottom screen disc 2, the middle screen disc 3 and the top screen disc 4 are connected with graded discharging pipes 21, the materials screened on each layer of screen disc can be output through the respective graded discharging pipes 21 to form the subdivision collecting effect of the materials, the screen disc cover 5 can be arranged on the top screen disc 4 in a covering manner, the top of the screen disc cover 5 is connected with a feeding pipe 51, the feeding pipe 51 is connected with a conveying pipeline of powder, the materials to be screened can be fed into the screening machine through the feeding pipe 51, the intermittent feeding mechanism 6 is arranged in the screening disc cover 5, the intermittent feeding mechanism 6 comprises a rotary material disc 61 rotatably arranged in the screening disc cover 5, the rotary material disc 61 can be intermittently communicated with the feeding pipe 51 in the rotation process, in order to solve the problem of excessive single feeding of the position of the top screening disc 4, the rotary material disc 61 is arranged on the screening disc cover 5, the rotary material disc 61 has a feeding transfer function, the rotary material disc 61 can be rotationally driven at a constant speed, intermittent communication with the feeding pipe 51 can be realized, the intermittent feeding of the materials is realized, and the single feeding amount can be greatly reduced due to intermittent feeding of the materials, the problem of material accumulation of the position of the top screening disc 4 can be effectively solved, and the screening quality is ensured.

As shown in fig. 2 and 3, the feeding pipe 51 is vertically penetrated, the lower opening of the feeding pipe 51 contacts with the upper end surface of the rotary tray 61, the rotary tray 61 is hollow, the upper end surface of the rotary tray 61 is provided with a feeding hole 611, during the rotation of the rotary tray 61, the feeding hole 611 can be in overlapping communication with the lower opening of the feeding pipe 51, during the rotation of the rotary tray 61, only when the feeding hole 611 is in overlapping communication with the lower opening of the feeding pipe 51, the lower opening of the feeding pipe 51 is closed by the upper end surface of the rotary tray 61, that is, the rotary tray 61 rotates once, the feeding pipe 51 only realizes once opening feeding, the purpose of intermittent feeding can be met under the continuous rotation of the rotary tray 61, the lower end surface of the rotary tray 61 is provided with a discharging hole 612, the discharging hole 612 is arranged at the position of the bottom of the inclined slope 613, and the material entering from the feeding hole 611 falls down to the position of the discharging hole 612 along the inclined slope 613 during the rotation of the rotary tray 61.

As shown in fig. 3, the intermittent feeding mechanism 6 further comprises a motor 62 and a scattering component 63, the motor 62 is installed on the screen tray cover 5, the output end of the motor 62 is connected with the rotary tray 61, the motor 62 can drive the rotary tray 61 to rotate at uniform speed, a coarse filter screen 614 is installed on the discharge port 612, the scattering component 63 is installed above the coarse filter screen 614, materials input into the rotary tray 61 may have caking phenomenon, the caking materials are not easy to vibrate and scatter, if the caking materials directly fall onto the screen tray, the condition of poor screening effect easily occurs, the caking materials can be directly output from the classifying discharge pipe 21, the coarse filter screen 614 can effectively block caking materials from falling from the rotary tray 61, ensure stable fineness of the materials falling onto the screen tray, screening quality of the device can be effectively improved, the caking materials blocked in the rotary tray 61 can be scattered through the scattering component 63, so that all materials can be guaranteed to pass through screening operation, the coarse filter screen 614 can also play a role in delaying the material output, the effect of the caking materials can not fall along with the rotation of the screen tray 61, the screening effect can be fully improved, the screening effect can be effectively improved, the screening effect can be fully improved, and the screening effect can be fully improved along with the rotation of the screen tray 61.

As shown in fig. 3, the breaking assembly 63 includes a rotating rod rack 631, a rotating rod 632 and a second transmission gear 635, the rotating rod rack 631 is installed in the rotating tray 61, the rotating rod 632 is rotatably connected to the rotating rod rack 631, the lower end of the rotating rod 632 is connected to a plurality of breaking blades 633, the upper end of the rotating rod 632 is connected to a first transmission gear 634, the second transmission gear 635 is rotatably installed on the rotating rod rack 631, the second transmission gear 635 is meshed with the first transmission gear 634, a gear ring sleeve 636 is installed in the screen tray cover 5, the gear ring sleeve 636 is sleeved outside the rotating tray 61, a circle of driving gear ring 637 is connected to the inner wall of the gear ring sleeve 636, the second transmission gear 635 extends to the outside of the rotating tray 61 and meshed with the driving gear ring 637.

As shown in fig. 2, an aggregate cone 22 is installed in the bottom screen tray 2, the center of the aggregate cone 22 is convex, so that the material can fall down along the edge of the rapid net, and the screening material can be collected.

As shown in fig. 2, the middle screening tray 3 and the top screening tray 4 are provided with the screening screen 31 and the collecting hopper 32, the collecting hopper 32 is arranged at the lower position of the screening screen 31, the screening screen 31 can form a screening effect on materials, the materials are concentrated in the middle of the screening screen 31 as far as possible due to the outward expanding involute movement, the materials fall down to be the optimal screening scheme, the movement stroke of the materials is longer, the screening effect is better, the screening process is better, the screening falling points of the materials are disordered and the quantity is more, the collecting hopper 32 is required to collect the scattered materials again, the materials can conveniently enter the next screening operation, the collecting hopper 32 is connected with the collecting blanking pipe 321 at the lower end face of the collecting hopper 32, the central position of the lower end face of the collecting hopper 32 is the lowest point of the collecting blanking pipe 321 is connected at the position, the collecting blanking pipe 321 plays a role in collecting the concentrated falling of the materials, and the collecting blanking pipe can be exactly positioned at the upper position of the center of the lower screening screen 31, and thus the most beneficial screening effect can be achieved.

As shown in FIG. 2, the top screen tray 4 adopts a horizontal structure of screening screen 31, the middle screen tray 3 adopts a central upper arch structure of screening screen 31, the top screen tray 4 is the screen tray with the first contact of materials, and the amount of materials is the largest, so that the screening screen 31 is of a horizontal structure, the screening time is relatively increased, the middle screen tray 3 is the subsequent screen tray, after the screening of the top screen tray 4 and the previous screen tray, the amount of materials is obviously reduced, the screening is required to be completed quickly, the central upper arch structure of screening screen 31 can enable the materials to roll off in an accelerating manner, and the screening time of the materials can be greatly reduced compared with the horizontal structure.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. The utility model provides a rotary vibrating screen, includes vibration excitation device (1) and screen tray lid (5), its characterized in that: the utility model discloses a vibrating device, including sieve tray (2), middle sieve tray (3) and top sieve tray (4) are installed to the coincide in proper order from bottom to top on vibration excitation device (1), all be connected with hierarchical discharging pipe (21) on bottom sieve tray (2), middle sieve tray (3) and top sieve tray (4), sieve tray lid (5) can cover and install on top sieve tray (4), sieve tray lid (5) top is connected with and throws feed pipe (51), install intermittent feeding mechanism (6) in sieve tray lid (5), intermittent feeding mechanism (6) are including rotating rotatory charging tray (61) of installing in sieve tray lid (5), rotatory charging tray (61) can be at the intermittent type intercommunication feeding pipe (51) in the rotation process.

2. A rotary vibration screen as claimed in claim 1, wherein: the feeding pipe (51) is vertically communicated, a lower opening of the feeding pipe (51) is in contact with the upper end face of the rotary tray (61), the rotary tray (61) is hollow, a feeding opening (611) is formed in the upper end face of the rotary tray (61), the feeding opening (611) can be in overlapping communication with the lower opening of the feeding pipe (51) in the rotary tray (61) rotating process, a discharging opening (612) is formed in the lower end face of the rotary tray (61), a tilting slope (613) is arranged in the rotary tray (61), and the discharging opening (612) is arranged at the bottom point of the tilting slope (613).

3. A rotary vibration screen as claimed in claim 2, wherein: intermittent feeding mechanism (6) still includes motor (62) and breaks up subassembly (63), rotatory charging tray (61) are connected to motor (62) output, install coarse filtration filter screen (614) on discharge gate (612), break up subassembly (63) and install in coarse filtration filter screen (614) top position.

4. A rotary vibration screen according to claim 3, wherein: the utility model provides a subassembly (63) breaks up, including carousel frame (631), bull stick (632) and second drive gear (635), bull stick (632) rotate and connect on carousel frame (631), bull stick (632) lower extreme is connected with a plurality of and breaks up blade (633), bull stick (632) upper end is connected with first drive gear (634), second drive gear (635) rotate and install on carousel frame (631), second drive gear (635) meshes with first drive gear (634), install tooth snare (636) in sieve dish lid (5), tooth snare (636) suit is in rotatory charging tray (61) outside, be connected with round drive ring gear (637) on ring snare (636) inner wall, second drive gear (635) part extends to rotatory charging tray (61) outside to mesh with drive ring gear (637).

5. A rotary vibration screen as claimed in claim 1, wherein: an aggregate cone (22) is arranged in the bottom screen disc (2).

6. A rotary vibration screen as claimed in claim 1, wherein: the middle screen tray (3) and the top screen tray (4) are internally provided with a screening filter screen (31) and a collecting funnel (32), and the collecting funnel (32) is arranged at the lower position of the screening filter screen (31).

7. A rotary vibration screen as claimed in claim 6, wherein: the collecting hopper (32) is connected with a centralized blanking pipe (321) on the lower end face, the central position of the lower end face of the collecting hopper (32) is the lowest point of the central position, and the centralized blanking pipe (321) is connected at the position.

8. A rotary vibration screen as claimed in claim 6, wherein: the top screen tray (4) adopts a screening filter screen (31) with a horizontal structure, and the middle screen tray (3) adopts a screening filter screen (31) with a central upper arch structure.