CN224237493U

CN224237493U - Vibration screening device for grain screening

Info

Publication number: CN224237493U
Application number: CN202521149210.7U
Authority: CN
Inventors: 周志宏; 崔佳惠; 石敏琪; 徐念凌; 侯嘉豪
Original assignee: Individual
Current assignee: Individual
Priority date: 2025-06-06
Filing date: 2025-06-06
Publication date: 2026-05-15
Anticipated expiration: 2035-06-06

Abstract

This application relates to the technical field of grain processing, and in particular to a vibrating sieve device for grain screening. It includes a base, with multiple springs fixedly connected to the upper side of the base. A vibrating screen frame is fixedly connected to the upper side of the springs, a screening mesh is fixedly connected to the upper side of the vibrating screen frame, and a feed hopper is fixedly connected to the upper side of the vibrating screen frame. A dispersing rod is rotatably fitted to the inner wall of the feed hopper, and multiple striking plates are fixedly connected to the dispersing rod. A drive mechanism is provided on the lower side of the vibrating screen frame. This invention, by setting up a drive mechanism, a linkage mechanism, and striking plates, enables the drive mechanism to drive the dispersing rod and striking plates through the linkage mechanism. The rotation of the striking plates breaks up agglomerated grain, preventing agglomeration from affecting the screening effect, avoiding screening errors caused by agglomeration, improving screening accuracy, and allowing the screen to accurately distinguish the true size of material particles.

Description

Vibration screening device for grain screening

Technical Field

The application relates to the technical field of grain processing, in particular to a vibration screening device for grain screening.

Background

The vibration screening device for grain screening is a mechanical equipment specially used in the field of grain processing and used for screening and grading various grains, and its main principle is that the screen surface can produce regular vibration by means of vibration acting force produced by vibration motor, etc.. After being conveyed to the screen surface, the grain materials are separated according to the differences of physical characteristics such as particle size, shape, density and the like under the action of vibration. The grains with smaller grains can fall down through the sieve holes, and larger grains which do not meet the requirements of the corresponding sieve hole sizes are remained on the sieve surface and conveyed to other outlets or areas, so that the purposes of screening grains, removing impurities, dividing different granularity grades and the like are realized, the quality of the grains is improved, and the quality requirements of different links such as subsequent processing, storage, sales and the like are met.

The existing tradition is carrying out processing to grain, usually need to sieve the grain that stores in the feed bin for grain size classifies, classify to different granularity, but in actual use, when vibrating, its grain is storing or in transportation etc. in-process, probably because of the caking phenomenon appears in reasons such as wet, lead to in follow-up screening process because of the existence of caking, the screen cloth is difficult to accurately distinguish the true size of material granule according to the mesh number of design, some single granule accords with the material of screen cloth size requirement originally, because by being wrapped up in the caking, can't become the screen cloth through the screen cloth and screen cloth, have led to few these qualified particles that should be sieved out in the final screen cloth, and the small particle that should not exist has been mingled with in the screen cloth again, whole screening precision reduces, can't reach the required precision of high quality screening, screening quality has been influenced.

Disclosure of utility model

In order to solve the problems mentioned in the background art, the application provides a vibration screening device for grain screening.

The application provides a vibration screening device for grain screening, which adopts the following technical scheme that the vibration screening device comprises a base, wherein a plurality of springs are fixedly connected to the upper side of the base, a vibration screen frame is fixedly connected to the upper side of the springs, a screening net is fixedly connected to the upper side of the vibration screen frame, a feed hopper is fixedly connected to the upper side of the vibration screen frame, a scattering rod is rotatably matched with the inner wall of the feed hopper, and a plurality of knocking plates are fixedly connected to the scattering rod;

The lower side of vibrating screen frame is provided with actuating mechanism, actuating mechanism with break up and be provided with link gear between the pole, the dust inlet has been seted up to one side of feeder hopper, the inner wall fixedly connected with dust removal subassembly of dust inlet

Optionally, the driving mechanism comprises a mounting block fixedly connected to the lower side of the vibrating screen frame, a driving motor fixedly connected to one side of the mounting block, a driving rod fixedly connected to the output end of the driving motor, and a crank block fixedly connected to the driving rod.

Optionally, the linkage mechanism includes a driving sprocket fixedly connected to the driving rod, a driven sprocket fixedly connected to one end of the breaking rod, and a chain disposed on the driving sprocket and the driven sprocket.

Optionally, the dust removal subassembly includes fixed connection the equipment frame of dust inlet inner wall, fixed connection be in the pull frame of equipment frame inner wall, fixed connection be in the filter screen of pull frame both sides, fixed connection be in the air exhauster of equipment frame one side.

Optionally, two stretching wheels are rotatably matched on one side of the vibrating screen frame, and the two stretching wheels are contacted with the chain.

Optionally, the inner wall fixedly connected with two deflector of feeder hopper, two the close one side of deflector all sets up to the slope form.

Optionally, the vibration screen frame with the equal fixedly connected with hang plate of upside of screening net, the equal fixedly connected with discharge gate in one side of hang plate, two hang plate is opposite setting.

In summary, the application has the following beneficial technical effects:

1. According to the utility model, by arranging the driving mechanism, the linkage mechanism, the knocking plate and other parts, the scattering rod and the knocking plate can be driven to work by the power of the driving mechanism through the linkage mechanism, the grains can be broken by rotating the knocking plate, the screening effect is prevented from being influenced by caking, the screening error caused by caking is avoided, the screening precision is improved, and the screen accurately distinguishes the real sizes of the material particles.

2. According to the utility model, the dust removal assembly is arranged, so that air can be extracted through the exhaust fan in the storage assembly, dust is collected by the filter screen, dust generated when the material is fed and the material falls down to the screening screen can be adsorbed, the working environment is improved, the health of operators is protected, and meanwhile, the damage of the dust to equipment is reduced.

Drawings

FIG. 1 is a schematic view of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic view of the overall perspective cross-section of an embodiment of the present application;

FIG. 3 is a schematic diagram of a linkage connection in an embodiment of the present application;

fig. 4 is a schematic rear perspective view of an embodiment of the present application.

The device comprises the following components of a base, a spring, a vibration screen frame, a screening net, a screening frame, a feeding hopper, a scattering rod, a 7-stroke plate, a 8-stroke driving mechanism, a 801-stroke installation block, a 802-stroke driving motor, a 803-stroke driving rod, a 804-stroke crank block, a 9-stroke linkage mechanism, a 901-stroke driving sprocket, a 902-stroke driven sprocket, a 903-stroke chain, a 10-stroke dust inlet, a 11-stroke dust removing component, a 111-stroke assembly frame, a 112-stroke drawing frame, a 113-stroke filter screen, a 114-stroke exhauster, a 12-stroke straight wheel, a 13-stroke guide plate, a 14-stroke inclined plate, a 15-stroke discharge hole.

Detailed Description

The application is described in further detail below with reference to fig. 1-4.

The embodiment of the application discloses a vibration screening device for grain screening. As shown in fig. 1-4, the vibrating screen comprises a base 1, wherein a plurality of springs 2 are fixedly connected to the upper side of the base 1, a vibrating screen frame 3 is fixedly connected to the upper side of the plurality of springs 2, a screening net 4 is fixedly connected to the upper side of the vibrating screen frame 3, a feeding hopper 5 is fixedly connected to the upper side of the vibrating screen frame 3, a scattering rod 6 is rotatably matched with the inner wall of the feeding hopper 5, and a plurality of knocking plates 7 are fixedly connected to the scattering rod 6.

Referring to fig. 3, two straightening wheels 12 are rotatably fitted on one side of the vibrating screen frame 3, the two straightening wheels 12 are in contact with the chain 903, the chain 903 is always kept in a tensioned state due to the arrangement of the straightening wheels 12, and the chain 903 is not tooth-removed due to loosening in the vibration process of the device, so that the transmission stability is ensured.

Referring to fig. 2, two guide plates 13 are fixedly connected to the inner wall of the feed hopper 5, and one side of each of the two guide plates 13 is inclined, the guide plates 13 can be used for guiding the inner material of the feed hopper 5, and the inclined arrangement can facilitate the flow of the material.

Referring to fig. 2, the vibrating screen frame 3 and the screening net 4 are fixedly connected with inclined plates 14, one sides of the inclined plates 14 are fixedly connected with discharge ports 15, the two inclined plates 14 are oppositely arranged, larger materials on the upper side of the screening net 4 can be led out to one side through the inclined plates 14, the other inclined plates 14 are oppositely arranged, smaller materials can be led out from the other side, and different degrees of guiding-out of different materials can be achieved.

The lower side of the vibrating screen frame 3 is provided with a driving mechanism 8, a linkage mechanism 9 is arranged between the driving mechanism 8 and the scattering rod 6, a dust inlet 10 is formed in one side of the feed hopper 5, and a dust removing component 11 is fixedly connected to the inner wall of the dust inlet 10.

Referring to fig. 3, the driving mechanism 8 includes a mounting block 801 fixedly connected to the lower side of the vibrating screen frame 3, a driving motor 802 fixedly connected to one side of the mounting block 801, a driving rod 803 fixedly connected to an output end of the driving motor 802, and a crank block 804 fixedly connected to the driving rod 803, and drives the driving rod 803 inside the mounting block 801 to rotate through the driving motor 802, so as to drive the crank block 804 to rotate, thereby driving the vibrating screen frame 3 to perform swinging vibration.

Referring to fig. 3, the linkage mechanism 9 includes a driving sprocket 901 fixedly connected to the driving rod 803, a driven sprocket 902 fixedly connected to one end of the breaking rod 6, and a chain 903 disposed on the driving sprocket 901 and the driven sprocket 902, and the driving sprocket 901 and the driven sprocket 902 are matched by the chain 903, so that the breaking rod 6 and the striking plate 7 can be driven simultaneously in the driving process of the driving rod 803, the power of the existing driving mechanism 8 is utilized, the breaking rod 6 is not required to be driven by an additional motor, and a certain energy-saving effect is achieved.

Referring to fig. 2, the dust removing assembly 11 includes an assembling frame 111 fixedly connected to an inner wall of the dust inlet 10, a drawing frame 112 fixedly connected to an inner wall of the assembling frame 111, filter screens 113 fixedly connected to two sides of the drawing frame 112, and an exhaust fan 114 fixedly connected to one side of the assembling frame 111, wherein the interior of the assembling frame 111 is pumped by the exhaust fan 114, so that negative pressure is generated in the interior of the assembling frame 111 to realize gas suction, two filter screens 113 are respectively a coarse filter screen and a fine filter screen, the fine filter screen is used for filtering an input end of the exhaust fan 114, and the coarse filter screen is used for filtering grains but not filtering dust.

The vibration screening device for grain screening is implemented according to the principle that when the vibration screening device is used, firstly, a base 1 is moved to a proper position, then a power supply is connected, when screening is carried out, a driving motor 802 is started to drive a driving rod 803 and a crank block 804 to rotate, the eccentric motion of the crank block 804 enables a vibration screen frame 3 to vibrate under the support of a spring 2, and when grains are poured into a feed hopper 5, the grains fall onto a screening net 4, so that the grains are subjected to vibration screening on the screening net 4;

In the driving process, when the driving rod 803 rotates, the driving sprocket 901 rotates in a following way, and then the driven sprocket 902 is driven to rotate through the chain 903, so that the scattering rod 6 can be driven in the screening process, grains enter from the feed hopper 5 in the feeding process, the scattering rod 6 rotates at a high speed, the knocking plate 7 on the scattering rod 6 breaks up the blocked grains, the blocking effect is prevented from being influenced, the screening error caused by blocking is avoided, the screen can accurately distinguish the real sizes of the material particles, and the screening precision is improved;

When throwing the material, accessible starts air exhauster 114, makes it draw the air through inlet 10, then enters into the inside collection of pull frame 112 with the dust through filter screen 113 to can realize throwing the material and drop the dust on screening net 4 and adsorb, improve operational environment, protect operating personnel healthy, reduce the harm of dust to equipment simultaneously.

The above embodiments are not intended to limit the scope of the application, so that the equivalent changes of the structure, shape and principle of the application are covered by the scope of the application.

Claims

1. The vibration screening device for grain screening comprises a base (1) and is characterized in that a plurality of springs (2) are fixedly connected to the upper side of the base (1), a vibration screen frame (3) is fixedly connected to the upper side of each spring (2), a screening net (4) is fixedly connected to the upper side of each vibration screen frame (3), a feed hopper (5) is fixedly connected to the upper side of each vibration screen frame (3), a scattering rod (6) is rotatably matched with the inner wall of each feed hopper (5), and a plurality of knocking plates (7) are fixedly connected to the scattering rods (6);

The dust removing device is characterized in that a driving mechanism (8) is arranged on the lower side of the vibrating screen frame (3), a linkage mechanism (9) is arranged between the driving mechanism (8) and the scattering rod (6), a dust inlet (10) is formed in one side of the feed hopper (5), and a dust removing assembly (11) is fixedly connected to the inner wall of the dust inlet (10).

2. The vibrating screen device for grain screening according to claim 1, wherein the driving mechanism (8) comprises a mounting block (801) fixedly connected to the lower side of the vibrating screen frame (3), a driving motor (802) fixedly connected to one side of the mounting block (801), a driving rod (803) fixedly connected to the output end of the driving motor (802), and a crank block (804) fixedly connected to the driving rod (803).

3. The vibratory screening device for grain screening according to claim 2, wherein the linkage (9) comprises a driving sprocket (901) fixedly connected to the driving rod (803), a driven sprocket (902) fixedly connected to one end of the breaking rod (6), and a chain (903) provided on the driving sprocket (901) and the driven sprocket (902).

4. The vibrating screen device for grain screening, as set forth in claim 1, wherein the dust removing component (11) comprises an assembling frame (111) fixedly connected to the inner wall of the dust inlet (10), a drawing frame (112) fixedly connected to the inner wall of the assembling frame (111), filter screens (113) fixedly connected to two sides of the drawing frame (112), and an exhaust fan (114) fixedly connected to one side of the assembling frame (111).

5. A vibrating screen device for screening grains according to claim 3, wherein two straightening wheels (12) are rotatably matched on one side of the vibrating screen frame (3), and the two straightening wheels (12) are contacted with the chain (903).

6. The vibrating screen device for grain screening according to claim 1, wherein two guide plates (13) are fixedly connected to the inner wall of the feed hopper (5), and one side of each guide plate (13) close to the other side is inclined.

7. The vibrating screen device for grain screening of claim 1, wherein the vibrating screen frame (3) and the screening net (4) are fixedly connected with inclined plates (14), one sides of the inclined plates (14) are fixedly connected with discharge ports (15), and the two inclined plates (14) are oppositely arranged.