CN220678573U - Swing type probability screen - Google Patents

Abstract

The utility model provides a swinging probability screen, which comprises a screen box, a supporting device and an excitation device, wherein the supporting device comprises a bracket, an elastic supporting component and a supporting and limiting component; the two corners of the bracket, which are close to the feed inlet and the discharge outlet of the screen box, are respectively provided with a high supporting table and a low supporting table, and the high supporting table and the low supporting table are respectively provided with an inclined table; the elastic supporting component comprises four rubber composite spring pieces which are respectively arranged at the two low supporting tables and on the two high supporting tables; the supporting and limiting assembly comprises four universal couplings, the bottom ends of the four universal couplings are respectively arranged on the inclined tables of the two low supporting tables and the inclined tables of the two high supporting tables, and the top ends of the four universal couplings are connected to the side wall or the bottom shell of the screen box. By adopting the technical scheme of the utility model, the screen box can be elastically supported and limited supported, and the screen box can be circumferentially rotated in the inclined plane with a larger inclination angle, so that the impact on the screen box and the bracket in the screening operation process can be reduced, the service life of equipment can be prolonged, the noise can be reduced, and the screening operation productivity can be improved.

Description

Swing type probability screen

Technical Field

The utility model relates to the technical field of screening equipment, in particular to a swinging type probability screen.

Background

The existing square swinging sieves mostly adopt a mounting mode of lifting or adopting a seat-mounted framework, the swinging sieves adopting the mounting mode have larger occupied space, the vibration mode is swinging in the horizontal direction or vibrating in the up-down direction, and the impact on the screen and the machine seat is larger when the sieving machine works.

Patent CN2019201529881 discloses a square oscillating screen of compact structure to support the installation mode and replace traditional oscillating screen hoist and mount mode, adopt extension rubber spring as support piece, can make the screen box be the circumferencial mode rotation in its place plane, reduce the impact to screen box and support frame, improve device life.

The applicant finds that the square rocking screen has the disadvantage of high precision but low capacity relative to the probability screen in the practical process, which is also a common problem of the conventional rocking screen. Different screening precision requirements and high yield requirements of low precision and high precision exist in the screening operation field, and the existing probability screen can only meet the yield requirements and cannot meet the high screening precision requirements; the existing square swinging sieve can only meet the requirement of high screening precision, but cannot meet the requirement of high yield. Therefore, there is a need for a screening device that can have the advantages of square swing screen replacement convenience, low noise, long service life, and the like, while meeting the screening precision and capacity requirements.

Disclosure of Invention

The utility model provides a swing type probability screen, which aims to solve the problem of low capacity of the conventional square swing screen.

In order to achieve the above purpose, the embodiment of the utility model provides a swing type probability screen, which comprises a screen box, a supporting device and an excitation device, wherein the supporting device comprises a bracket, an elastic supporting component and a supporting limiting component; the two corners of the bracket, which are close to the feed inlet of the screen box, are also provided with high support tables, the two corners of the bracket, which are close to the discharge outlet of the screen box, are also provided with low support tables, and the high support tables and the low support tables are respectively provided with inclined tables with gradually descending heights along the whole running direction of the screen box; the elastic support assembly comprises four rubber composite spring pieces which are respectively arranged at the positions, close to the two low support tables, on the support and at the positions, close to the inclined tables, on the two high support tables; the supporting and limiting assembly comprises four universal couplings, the bottom ends of the four universal couplings are respectively arranged on the inclined tables of the two low supporting tables and the inclined tables of the two high supporting tables, and the top ends of the four universal couplings are connected to the side wall or the bottom shell of the screen box; the vibration excitation device comprises a motor and a vibration exciter, the vibration exciter is arranged on the lower side of the bottom shell of the screen box, and the motor is arranged at one end of the bottom shell of the screen box and is in transmission connection with the vibration exciter.

Optionally, the screen box has an inclination angle of 10 ° to 30 °.

Optionally, the side wall of the screen box is provided with a plurality of reinforcing plates, including four reinforcing plates corresponding to the positions of the universal couplings, and the top ends of the universal couplings are respectively connected to the corresponding reinforcing plates.

Optionally, the rubber composite spring piece comprises a rubber column and connecting plates arranged on the upper end face and the lower end face of the rubber column, the upper end face and the lower end face of the rubber column are respectively provided with a first counter bore coaxially arranged with the rubber column, the side face of each counter bore is provided with a plurality of groups of tooth bulges, and the bottom face of each counter bore is provided with cylindrical bulges densely arranged; the side surface of the connecting plate is provided with a plurality of groups of grooves which are arranged along the circumference of the connecting plate, and the grooves are tightly matched with the tooth bulges; the lower end face of the connecting plate is provided with a second counter bore for accommodating the columnar bulge, and the center of the connecting plate is provided with a threaded hole.

Optionally, the rubber compound spring member has a height greater than the diameter.

Optionally, the bottom shell of the screen box is provided with a raised conical structure, and the vibration exciter is arranged at the top end of the conical structure and is in transmission connection with the motor through a belt.

Optionally, a plurality of top dust discharge ports and viewing ports are provided on the top housing of the screen box.

The swinging probability screen provided by the embodiment of the utility model is provided with the screen box, the supporting device, the vibration excitation device and other parts, wherein the supporting device comprises the bracket, the elastic supporting component and the supporting and limiting component, and the screen box is supported by the plurality of rubber composite spring pieces, so that the impact of the screening operation process on the screen box and the bracket can be reduced, the service life of equipment is prolonged, and the noise is reduced; the screen box is limited and supported through the universal couplings, so that dynamic balance of vibration of the screen box in the screening operation process can be further guaranteed, and the running stability of equipment is improved.

According to the swing type probability screen disclosed by the embodiment of the utility model, the screen box can be circumferentially rotated in the inclined plane with a larger inclination angle by carrying out elastic support and limiting support on the screen box and arranging the high-low support tables at the two ends, so that the swing type probability screen has a screening mode of the probability screen, the screening efficiency is improved, and the capacity of screening operation is improved; and can reduce the impact to the screen cloth, improve screen cloth life, reduce screening operation cost.

The swinging type probability screen provided by the embodiment of the utility model has the advantages of convenience in screen changing, environmental friendliness, low noise, low failure rate, long service life and the like of the square swinging screen, and simultaneously has the advantages of high productivity, large screening area of a single screen, more multi-level design, light weight, small volume, more stable operation and the like, and can be used as an upgrading product of the existing probability screen; and the device also has the advantages of reliable performance, lower cost, convenient installation and the like.

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 according to these drawings without inventive faculty for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a swing-type probability screen according to an embodiment of the present utility model at a first view angle;

FIG. 2 is a schematic diagram of a structure of a swing probability screen according to a second view angle of an embodiment of the present utility model;

FIG. 3 is a schematic view of a third view of a rocking probability screen according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a structure of a swing-type probability screen according to a fourth view angle of an embodiment of the present utility model;

fig. 5 is a schematic structural view of a rubber composite spring member according to an embodiment of the present utility model.

Reference numerals:

1. a screen box; 11. a feed inlet; 12. a discharge port; 13. a reinforcing plate; 14. an observation port; 15. a dust discharge port; 2. a bracket; 21. a rubber composite spring member; 211. a rubber column; 212. a connecting plate; 213. tooth protrusions; 22. a universal coupling; 23. a low support table; 24. a high support table; 25. a fixed plate; 3. a vibration exciter; 31. and a motor.

Description of the embodiments

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The utility model can be practiced in many other ways than those herein described and similar modifications can be made by those skilled in the art without departing from the spirit of the utility model, and therefore the utility model is not limited to the practice of the substrate disclosed below.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to fig. 4, the swing type probability screen according to the embodiment of the utility model comprises a screen box 1, a supporting device and an excitation device, wherein the screen box 1 comprises a shell, a screen group, a feed inlet 11 and a discharge outlet 12, the feed inlet 11 and the discharge outlet 12 are respectively arranged at two ends of the shell, the screen group is fixed inside the shell, and a raised conical structure is arranged at the bottom of the shell. The supporting device comprises a bracket 2, an elastic supporting component and a supporting and limiting component; a high supporting table 24 is further arranged at two corners of the bracket 2, which are close to the feed inlet 11 of the screen box 1, a low supporting table 23 is further arranged at two corners of the bracket 2, which are close to the discharge outlet 12 of the screen box 1, and inclined tables which gradually descend along the whole running direction of the screen box 1 are arranged on the high supporting table 24 and the low supporting table 23; the elastic support assembly comprises four rubber compound spring pieces 21, wherein the four rubber compound spring pieces 21 are respectively arranged at the positions, close to the two low support tables 23, on the support 2 and the positions, close to the inclined tables, on the two high support tables 24, and the top ends of the four rubber compound spring pieces 21 are connected with the bottom shell of the screen box 1 and are used for supporting the screen box 1; the supporting and limiting assembly comprises four universal couplings 22, the bottom ends of the four universal couplings 22 are respectively arranged on the inclined tables of the two low supporting tables 23 and the inclined tables of the two high supporting tables 24, and the top ends of the four universal couplings 22 are connected to the side wall or the bottom shell of the screen box 1. The vibration excitation device comprises a motor 31 and a vibration exciter 3, the vibration exciter 3 is arranged on the lower side of the bottom shell of the screen box 1, and the motor 31 is arranged at one end of the bottom shell of the screen box 1 and is in transmission connection with the vibration exciter 3.

According to the swing type probability screen disclosed by the embodiment of the utility model, a support mounting mode is adopted, the screen box 1 is mounted on the support 2 through the elastic support component and the support limiting component, the screen box 1 is provided with a certain inclination angle through arranging the high support table 24 and the low support table 23 at two ends of the screen box 1 respectively, and the screen box 1 can be circumferentially rotated in an inclination plane when the vibration exciter 3 works, so that the vertical vibration screening of a traditional swing screen is improved to be rotated in the inclination plane, which is equivalent to a simulated manual screening mode, the impact of vibration balls in materials and screen frames on the screen is reduced, and the service life of the screen is prolonged; the angle of the inclined plane is increased by rotating the screening, which is equivalent to the screening mode that the swinging screen is provided with the probability screen, so that the screening efficiency is improved, and the screening productivity is improved; and, utilize the elastic support mode of the rubber compound spring piece 21 to reduce the impact to screen box 1 and support 2, improve the apparatus life and reduce the noise; the screen box 1 is limited, fixed and supported by the universal coupling 22, so that dynamic balance of the screen box 1 during vibration is further ensured, and the running stability of equipment is improved.

According to an exemplary embodiment of the present utility model, the screen box 1 of the swing type probability screen has an inclination angle of 10 ° to 30 °, where the inclination angle of the overall running direction of the screen box 1 is the inclination angle of the screen box 1 from the feed inlet 11 to the discharge outlet 12, and also the inclination angle of the plane of the screen in the screen box 1, which is the angle of the inclined plane of the screen that performs circumferential rotation, and can be achieved by adjusting the heights of the high support stand 24 and the low support stand 23 and the slope angle of the inclined stand. Here, the inclination angle is 10 ° to 30 °, so that on the one hand, an increase in screening efficiency due to an excessively small inclination angle can be avoided, and on the other hand, an influence on screening accuracy due to an excessively large inclination angle can be avoided. In practical application, the inclination angle can be determined according to the material to be screened in screening operation and the screening precision requirement thereof, for example, for coarser granular materials to be screened with low screening precision requirement, the inclination angle can be set to be 10-15 degrees, and the screening operation productivity can be greatly improved under the condition of meeting the screening precision requirement.

In an alternative embodiment, the bottom shell of the screen box 1 is provided with a convex conical structure, the vibration exciter 3 is arranged at the top end of the conical structure and is in transmission connection with the motor 31 through a belt, and an eccentric balancing weight can be further arranged at the vibration exciter 3; the top casing of the screen box 1 is provided with a plurality of top dust discharge openings 15 and observation openings 14, the plurality of dust discharge openings 15 and observation openings 14 can be divided into a plurality of rows and are arranged along a direction having a certain inclination angle with the frame of the top casing of the screen box 1, for example, the top casing is composed of a plurality of conical modular plates, and each conical modular plate is provided with a plurality of top dust discharge openings 15 and observation openings 14 arranged along the diagonal direction of the plate.

The side wall of the screen box 1 is provided with a plurality of reinforcing plates 13 for reinforcing the structural strength of the screen box 1; the reinforcing plates 13 comprise four reinforcing plates 13 corresponding to the positions of the universal couplings 22, so that the top ends of the universal couplings 22 are conveniently connected with the screen box 1 in a mode of being respectively connected with the corresponding reinforcing plates 13, and particularly, notches can be formed in the bottoms of the reinforcing plates 13, so that the top ends of the universal couplings 22 extend into the notches to be connected with the reinforcing plates 13. Optionally, the reinforcing plate 13 has a structure with a thin upper part and a thick lower part, which is equivalent to a wedge structure, specifically, the thickness of the reinforcing plate 13 may gradually increase from top to bottom along the length direction (i.e., the height direction of the screen box 1), and the thickness of the lower half section of the reinforcing plate 13 is uniform, so that the screen box 1 can be made to be slightly heavier at the lower part, which is helpful for improving vibration stability. Here, the top end of the universal joint 22 is equivalent to being connected to the side wall of the screen box 1, the rubber composite spring member 21 is connected to the bottom shell of the screen box 1, and since the universal joint 22 and the rubber composite spring member 21 are both connected to the screen box 1 in the vertical plane, the bottom end of the universal joint 22 is located on the support frame 2 more outside than the rubber composite spring member 21 is located on the support frame 2, and accordingly, the width of the support frame 2 needs to be slightly larger than the width of the screen box 1, so that the universal joint 22 can be conveniently installed.

And, the support 2 is a spliced support 2, so that the installation and the debugging are convenient. The bracket 2 comprises a transverse frame and a longitudinal frame, and the transverse frame is consistent with the length direction of the screen box 1 and is smaller than the length of the screen box 1; the longitudinal frame is consistent with the width direction of the screen box 1 and slightly larger than the width of the screen box 1, so that a plurality of rubber compound spring pieces 21 are conveniently installed on the support 2 and a high-low supporting table 23 is arranged. The lower end face of the joint of the transverse frame and the longitudinal frame of the bracket 2 is provided with a fixed disc 25, and the fixed disc 25 is provided with a plurality of connecting holes for fixedly connecting the bracket 2 with the ground or installing support legs for the bracket 2.

Alternatively, as shown in fig. 5, the rubber composite spring member 21 includes a rubber column 211 and connection plates 212 disposed on upper and lower end surfaces of the rubber column, the upper and lower end surfaces of the rubber column are each provided with a first counterbore coaxially disposed with the rubber column 211, a plurality of sets of tooth protrusions 213 are disposed on a counterbore side surface of the first counterbore, and column-shaped protrusions are densely disposed on a counterbore bottom surface; the side surface of the connecting plate 212 is provided with a plurality of groups of grooves which are arranged along the circumference of the connecting plate, and the grooves are tightly matched with the teeth protrusions; the lower end surface of the connection plate 212 is provided with a second counter bore for accommodating the cylindrical protrusion, and the center of the connection plate 212 is provided with a threaded hole which can be used for connecting the rubber compound spring element 21 with the bottom shell of the screen box 1 and with the bracket 2.

Further, the height of the rubber compound spring member 21 is larger than the diameter, specifically, the height may be about three times the diameter, and when the device performs screening operation, it is ensured that the screen box 1 has a larger swing amplitude under the condition of stable swing, and the screening effect is further improved.

Compared with the existing square swing sieve, the swing probability sieve provided by the embodiment of the utility model has the main improvement points that the elastic supporting component and the supporting and limiting component are adopted to elastically support and limit the sieve box 1, and the technical scheme of the utility model can be realized by modifying the existing square swing sieve in the specific implementation process. In practical application scenes, the screen box 1, the screen group, the universal coupling 22, the rubber composite spring piece 21, the vibration exciter 3 and the like in the swing type probability screen can be devices with corresponding functions in the prior art; and, can also set up other parts in this formula probability sieve sways to realize the practical application or the other functions of formula probability sieve sways, for example set up handling auxiliary structure in screen box 1 bottom, be used for conveniently carrying out hoist and mount and transportation etc. to screen box 1.

It should be noted that each component described in the embodiments of the present utility model may be split into more components according to the implementation needs, and two or more components or parts of components may be combined into new components to achieve the objects of the embodiments of the present utility model.

The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (7)

1. The swinging probability screen comprises a screen box, a supporting device and an excitation device, and is characterized in that the supporting device comprises a bracket, an elastic supporting component and a supporting and limiting component;

the two corners of the bracket, which are close to the feed inlet of the screen box, are also provided with high support tables, the two corners of the bracket, which are close to the discharge outlet of the screen box, are also provided with low support tables, and the high support tables and the low support tables are respectively provided with an inclined table with gradually descending height along the whole running direction of the screen box;

the elastic support assembly comprises four rubber composite spring pieces, and the four rubber composite spring pieces are respectively arranged at the positions, close to the two low support tables, on the support and at the positions, close to the inclined tables, on the two high support tables; the supporting and limiting assembly comprises four universal couplings, the bottom ends of the four universal couplings are respectively arranged on the inclined tables of the two low supporting tables and the inclined tables of the two high supporting tables, and the top ends of the four universal couplings are connected to the side wall or the bottom shell of the screen box;

the vibration excitation device comprises a motor and a vibration exciter, the vibration exciter is arranged on the lower side of the bottom shell of the screen box, and the motor is arranged at one end of the bottom shell of the screen box and is in transmission connection with the vibration exciter.

2. The rocking probability screen of claim 1, wherein the screen box has an inclination angle of 10 ° to 30 °.

3. The rocking probability screen of claim 1, wherein the screen box has a plurality of stiffening plates on the side walls thereof, including four stiffening plates corresponding to each universal joint location, the top end of each universal joint being connected to the corresponding stiffening plate.

4. The swinging probability screen according to claim 1, wherein the rubber composite spring piece comprises a rubber column and connecting plates arranged on the upper end face and the lower end face of the rubber column, the upper end face and the lower end face of the rubber column are respectively provided with a first counter bore coaxially arranged with the rubber column, the side face of each counter bore is provided with a plurality of groups of tooth bulges, and the bottom face of each counter bore is provided with cylindrical bulges densely arranged; the side surface of the connecting plate is provided with a plurality of groups of grooves which are arranged along the circumference of the connecting plate, and the grooves are tightly matched with the tooth protrusions; the lower end face of the connecting plate is provided with a second counter bore for accommodating the columnar bulge, and the center of the connecting plate is provided with a threaded hole.

5. The rocking probability screen of claim 1, wherein the rubber compound spring member is greater in height than diameter.

6. The rocking probability screen of claim 1, wherein the screen box bottom housing has a convex conical structure, and the vibration exciter is mounted on the top end of the conical structure and is in driving connection with the motor through a belt.

7. The rocking probability screen of claim 1, wherein the screen box top housing is provided with a plurality of top dust vents and view ports.