CN219003773U - Gravity separator with ultrasonic wave clear screen function - Google Patents

Abstract

The utility model relates to the technical field of reselecting machines, and provides a reselecting machine with an ultrasonic screening function, which comprises a machine body, a screening bed arranged on the machine body, and a screening assembly, wherein the screening assembly is arranged on the screening bed and is used for cleaning the screening bed. Through above-mentioned technical scheme, the problem that the screen cloth jam is difficult to clear up in the course of the work of reselection machine among the prior art has been solved.

Description

Gravity separator with ultrasonic wave clear screen function

Technical Field

The utility model relates to the technical field of reselecting machines, in particular to a reselecting machine with an ultrasonic screening function.

Background

The gravity separation machine is a device for separating different materials by utilizing the difference of specific gravity among the different materials and by means of gravity or centrifugal force and realizing separation, the existing separation machine is provided with a device for separating the different materials by gravity through wind power, and discharging the materials from different positions according to different specific gravity through swinging, so that separation is realized, the existing dry type gravity separation machine can only be used for processing coarse particle materials, if the particle size of the materials is smaller than 0.5mm or powder materials are processed, the particles of the materials are very easy to clamp in meshes, the blocking net is caused, the device loses processing capacity, and the blocking particles are difficult to clean by adopting common elastic balls, vibration, net brushing and other methods, so that the blocking on the screen is cleaned.

There is therefore a need for a solution to the above problems.

Disclosure of Invention

The utility model provides a reselection machine with an ultrasonic screening function, which solves the problem that screen blocking is difficult to clean in the working process of the reselection machine in the prior art.

The technical scheme of the utility model is as follows:

the utility model provides a reselection machine with clear function of ultrasonic wave, includes the fuselage and sets up sieve bed on the fuselage, the sieve bed is equipped with the screen cloth, still includes clear screen assembly, clear screen assembly sets up on the sieve bed, clear screen assembly is used for clearing up the sieve bed.

As a further aspect, the screen assembly comprises,

the vibration body is connected with the screen mesh,

and the ultrasonic transducer is arranged on the vibration body.

As a further technical scheme, the vibrator comprises,

the vibrating rod is connected with the screen mesh,

the vibration handle is arranged on the vibration rod.

As a further technical scheme, the vibration handle is symmetrical left and right by taking the axis of the vibration rod, the vibration handle is provided with a plurality of ultrasonic transducers, and the ultrasonic transducers are arranged at symmetrical positions of the vibration handle.

As a further technical scheme, the cross section area of the vibrating rod is increased along the direction close to the vibrating handle.

As a further technical scheme, the vibrating screen further comprises a vibration isolation piece, one end of the vibration isolation piece is connected with the vibrating body, the other end of the vibration isolation piece is connected with the screen bed, and the vibrating body is connected with the screen bed through the vibration isolation piece.

As a further technical scheme, the sieve bed comprises,

the bed body is arranged on the machine body, the bed body is provided with a screen port, the screen is positioned in the screen port, the vibration body is positioned below the screen and connected with the screen, the vibration body is used for vibrating the screen,

as a further technical scheme, the novel air-conditioning bed comprises a screen, wherein the screen is arranged on the bed body, the air-blocking strip is positioned above the screen, the air-blocking strip is positioned in the middle of the screen along the discharging direction, and discharging channels are formed at two ends of the air-blocking strip.

As a further technical scheme, the method also comprises the following steps,

one end of the adjusting seat is hinged on the machine body, the other end of the adjusting seat is arranged on the machine body in a sliding way, the bed body is arranged on the adjusting seat in a swinging way, the bed body forms an included angle with the horizontal plane,

the bed comprises an elastic piece, wherein one end of the elastic piece is connected with the bed body, the other end of the elastic piece is connected with the adjusting seat, the vibrating assembly is arranged on the adjusting seat, and the working end of the vibrating assembly is connected with the bed body.

As a further technical solution, the vibration assembly comprises,

the blower is arranged on the machine body, the outlet end of the blower is communicated with the inlet end of the sieving port, the machine body is provided with a wind cavity and an air inlet, the air inlet is communicated with the wind cavity, the blower is positioned in the wind cavity,

the driving motor is arranged on the machine body,

the main shaft body is rotatably arranged on the machine body, the output end of the driving motor is connected with the main shaft body, the main shaft body is arranged on the machine body through the adjusting seat, the air cavity is positioned below the adjusting seat,

an eccentric sleeve arranged on the main shaft body,

the driving rod is sleeved at one end of the driving rod and is connected with the bed body at the other end of the driving rod, and the main shaft body rotates to drive the bed body to swing.

As a further technical scheme, the method also comprises the following steps,

a front supporting beam, one end of the adjusting seat is hinged on the front supporting beam,

the other end of the adjusting seat is arranged on the rear supporting beam in a sliding way, the front supporting beam and the rear supporting beam are provided with a plurality of strip-shaped holes, the strip-shaped holes are distributed along the horizontal direction,

the second lead screw is arranged on the machine body, the second lead screw is respectively positioned below the front supporting beam and the rear supporting beam, a plurality of second lead screws are uniformly distributed in the horizontal direction, and the second lead screw is used for penetrating through the strip-shaped holes.

As a further technical scheme, the adjusting seat is further provided with a guide groove, the rear supporting beam is further provided with a sliding part, the adjusting seat swings along a hinge point, and the sliding part is slidably arranged in the guide groove.

As a further technical proposal, the utility model also comprises a discharging component, the discharging component is arranged on the bed body and is positioned at the discharging end of the bed body, the discharging component comprises,

a first discharging groove which is arranged at the discharging end of the bed body, forms an included angle with the horizontal direction and is used for feeding materials into one side of the device,

the two second discharge tanks are arranged at the discharge end of the bed body, the inlet ends of the two second discharge tanks are respectively communicated with the outlet ends of the two discharge channels,

the connecting plate, a plurality of the connecting plate all slides and sets up on the second blown down tank, adjacent two the connecting plate overlaps each other, and a plurality of the connecting plate forms the intercommunication space, first blown down tank with the discharge end of the bed body passes through the connecting plate intercommunication, the entrance point of connecting plate with the middle part intercommunication of the bed body exit end, second blown down tank (30) are located the below of connecting plate.

In order to solve the screening problem of the gravity separator, the screening assembly is arranged on the screening bed of the gravity separator and comprises a vibrating body and an ultrasonic transducer, a plurality of vibrating bodies are arranged for obtaining high-energy ultrasonic vibration, the vibrating bodies are connected with a screen, and the vibrating bodies drive the screen to vibrate. In addition, a plurality of ultrasonic transducers can be arranged through the vibration handles on each vibration body, the ultrasonic transducers are distributed at symmetrical positions taking the axis of the vibration rod as the center, the design can enable ultrasonic vibration sources at two sides to interfere, the line where the vibration rod is located is a vibration reinforcing area, and the maximum energy of the ultrasonic transducers at one side can be up to 4 times that of the ultrasonic transducers at one side. Therefore, the design achieves the purpose of high-energy and large-area ultrasonic vibration screening. Therefore, the dry type gravity separator can be applied to processing of fine particles and powdery materials, the processing range of the dry type gravity separator is greatly widened, the screen mesh on the screen bed is driven to vibrate through the screen cleaning assembly, raw materials on the screen mesh are vibrated down, the vibration screen cleaning function is achieved, and the screen cleaning effect is better.

Drawings

The utility model will be described in further detail with reference to the drawings and the detailed description.

FIG. 1 is a schematic view of an axial structure of the present utility model;

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

FIG. 3 is a schematic view of the internal structure of another view of the present utility model;

FIG. 4 is a schematic view of the internal structure of the present utility model;

FIG. 5 is a schematic view of a screen assembly according to the present utility model;

in the figure: 1. the machine comprises a machine body, 2, a sieve bed, 3, a screen, 4, a vibrating body, 5, an ultrasonic transducer, 6, a vibrating rod, 7, a vibrating handle, 8, a vibration isolation piece, 9, a bed body, 10, a sieve port, 11, a flow blocking strip, 12, a blower, 13, an air cavity, 14, an air inlet, 15, a driving motor, 16, a main shaft body, 17, a main shaft body, 18, an eccentric sleeve, 19, a driving rod, 20, an adjusting seat, 21, an elastic piece, 22, a front supporting beam, 23, a rear supporting beam, 24, a strip-shaped hole, 25, a second screw rod, 26, a sliding part, 27, a guide groove, 28, a first discharging groove, 29, a connecting plate, 30 and a second discharging groove.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by one of ordinary skill 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.

As shown in fig. 1 to 5:

example 1

The utility model provides a reselection machine with clear sieve function of ultrasonic wave, is in including fuselage 1 and setting sieve bed 2 on the fuselage 1, sieve bed 2 is equipped with screen cloth 3, still includes the clear subassembly of sieving, the clear subassembly sets up on sieve bed 2, the clear subassembly of sieving is used for the clearance to sieve bed 2.

The screen assembly includes a screen assembly having a screen housing,

a vibrator 4, wherein the vibrator 4 is connected with the screen 3,

an ultrasonic transducer 5, the ultrasonic transducer 5 being provided on the vibrating body 4,

the vibrating body 4 comprises a plurality of vibrating bodies,

a vibrating rod 6, wherein the vibrating rod 6 is connected with the screen 3,

a vibration handle 7, wherein the vibration handle 7 is arranged on the vibration rod 6.

The vibration handle 7 is symmetric left and right by taking the axis of the vibration rod 6, the vibration handle 7 is provided with a plurality of ultrasonic transducers 5, the ultrasonic transducers 5 are arranged at the symmetric positions of the vibration handle 7,

the cross-sectional area of the vibrating rod 6 increases along the direction approaching the vibrating handle 7.

The vibrating screen also comprises a vibration isolation piece 8, one end of the vibration isolation piece 8 is connected with the vibrating screen 4, the other end of the vibration isolation piece is connected with the screen 2, and the vibrating screen 4 is connected with the screen 2 through the vibration isolation piece 8.

In this embodiment, in order to solve the problem of cleaning of the gravity separator, a cleaning component is disposed on the gravity separator sieve bed 2, and the cleaning component includes a vibration handle 7 and an ultrasonic transducer 5, and in order to obtain high-energy ultrasonic vibration, a plurality of vibration rods 6 are disposed, the vibration rods 6 are connected with the screen 3, and the vibration rods 6 drive the screen 3 to vibrate. In addition, 2 ultrasonic transducers 5 are arranged on the vibration handle 7 at one end of each vibration rod 6, the ultrasonic transducers 5 with the same 2 parameters are symmetrically distributed on two sides taking the vibration rod 6 as the center, the two ultrasonic vibration sources can interfere with each other, the line where the vibration rod 6 is located is a vibration reinforcing area, the maximum energy of the ultrasonic energy can be 4 times that of the single ultrasonic transducer 5, and the ultrasonic energy is transmitted along the vibration rod 6 to finally act on the screen 3, so that screening is realized. The cross section of the vibration rod 6 is preferentially designed to be in a frustum shape, the cross section area of one end which is closer to the vibration handle 7 is larger, vibration energy is gradually attenuated in the direction of the vibration rod 6 which is far away from the vibration handle 7 according to the transmission principle of sound waves, and the cross section area of the vibration rod 6 is smaller so as to obtain larger amplitude, so that the area of the screen 3 which is far away from the ultrasonic transducer 5 can obtain relatively equal vibration energy. Therefore, the design achieves the purpose of high-energy and large-area ultrasonic vibration screening. Therefore, the dry type gravity separator can be applied to processing of fine particles and powdery materials, the processing range of the dry type gravity separator is greatly widened, the screen 3 on the screen bed 2 is driven to vibrate through the screen cleaning assembly, and accordingly raw materials on the screen 3 are vibrated down, and the vibration screen cleaning function is achieved.

The vibration body 4 is connected with the sieve bed 2 through the vibration isolation member 8, so that the screen cleaning assembly has certain connection strength so as to be capable of vibrating along with the sieve bed 2, the vibration isolation member 8 can block the transmission of ultrasonic energy to a certain extent, the vibration energy generated by the ultrasonic transducer 5 is concentrated on the vibration body 4 as much as possible, the loss of effective energy caused by dispersing to the structure of the sieve bed 2 is avoided, and the vibration isolation member 8 can be made of a thin-wall material with elasticity

In some embodiments, to solve the screening problem of the gravity separator, a screening assembly is arranged on the screening bed 2 of the gravity separator, the screening assembly comprises a vibration handle 7 and an ultrasonic transducer 5, a plurality of vibration rods 6 are arranged for obtaining high-energy ultrasonic vibration, the vibration rods 6 are connected with the screen 3, and the vibration rods 6 drive the screen 3 to vibrate. In addition, the end part vibration handle 7 of each vibration rod 6 is provided with a plurality of ultrasonic transducers 5, and the number of the ultrasonic transducers 5 is preferably two or four, so that the energy is sufficient, the occupied area of the ultrasonic transducers 5 can be ensured, the ultrasonic energy generated by the ultrasonic transducers 5 is transmitted along the vibration rods 6 to finally act on the screen, the screen cleaning is realized, and the energy intensity and the screen cleaning intensity of the vibration rods 6 are determined by the power and the number of the ultrasonic transducers 5. Therefore, the design achieves the purpose of high-energy and large-area ultrasonic vibration screening. Therefore, the dry type gravity separator can be applied to processing of fine particles and powdery materials, the processing range of the dry type gravity separator is greatly widened, the screen 3 on the screen bed 2 is driven to vibrate through the screen cleaning assembly, and accordingly raw materials on the screen 3 are vibrated down, and the vibration screen cleaning function is achieved.

In the case of example 2,

further to the embodiment 1, the sieve bed 2 comprises,

a bed body 9, the bed body 9 is arranged on the machine body 1, the bed body 9 is provided with a screen port 10, the screen 3 is positioned in the screen port 10, the vibrator 4 is positioned below the screen 3, the vibrator 4 is connected with the screen 3, the vibrator 4 is used for vibrating the screen 3,

a screen 3, wherein the screen 3 is arranged on the bed body 9,

the flow blocking strip 11, flow blocking strip 11 sets up on the bed body 9, flow blocking strip 11 is located screen cloth 3 top, flow blocking strip 11 is located along the ejection of compact direction screen cloth 3 middle part, flow blocking strip 11's both ends form the discharge channel.

In this embodiment, sieve bed 2 includes bed body 9, screen cloth 3 and choked flow strip 11, and a plurality of choked flow strips 11 set up on the strengthening rib of sieve bed 2, pass through the fastener with the strengthening rib and be connected, screen cloth 3 is located between choked flow strip 11 and the bed body 9, and handle 7 is located between the strengthening rib of bed body 9 to can make screen cloth 3 vibrate, realize the clear sieve of screen cloth 3, choked flow strip 11 can separate the raw materials of screening, and the raw materials of different densities are sent out from choked flow strip 11's both sides or choked flow strip 11.

The discharge end of the sieve bed 2 is in one direction, the other three directions of the working area are closed and can not discharge materials, the feeding point is at the other side of the sieve bed 2 relative to the discharge end, when materials are discharged through the discharge port after being processed by the sieve bed 2, the side with higher discharge end is heavy materials with high material density, and the side with lower discharge end is light materials with low material density.

In some cases, the sieve bed 2 may also be designed as follows: the discharge end of the sieve bed 2 is in two opposite directions, the other two directions forming 90 degrees are closed and can not discharge, the feeding point is arranged between the discharge ports of the sieve bed 2 in two directions, the materials are discharged through the discharge ends of the two sides after being processed by the sieve bed 2, heavy materials are discharged through one discharge end of the high side, and light materials are discharged through one discharge end of the low side.

Example 3

Further comprising, on the basis of embodiment 2,

an adjusting seat 20, one end of the adjusting seat 20 is hinged on the machine body 1, the other end of the adjusting seat 20 is arranged on the machine body 1 in a sliding way, the bed body 9 is arranged on the adjusting seat 20 in a swinging way, the bed body 9 forms an included angle with the horizontal plane,

an elastic member 21, one end of the elastic member 21 is connected with the bed body 9, the other end of the elastic member 21 is connected with the adjusting seat 20,

the vibration assembly is arranged on the adjusting seat 20, and the working end of the vibration assembly is connected with the bed body 9.

In this embodiment, the adjusting seat 20 is used for adjusting the inclination of the sieve bed 2, and the locked structure can be arranged to adjust the inclination of the adjusting seat 20, so as to control the inclination of the bed body 9, the bed body 9 is connected with the adjusting seat 20 through the elastic piece 21, and the bed body 9 is driven to vibrate through the vibration component, so as to realize the processing of the raw materials of the reselection machine.

Example 4

Further to the embodiment 3, the vibration assembly includes,

a blower 12, the blower 12 is arranged on the machine body 1, the outlet end of the blower 12 is communicated with the inlet end of the screen material port 10, the machine body 1 is provided with a wind cavity 13 and an air inlet 14, the air inlet 14 is communicated with the wind cavity 13, the blower 12 is positioned in the wind cavity 13,

a drive motor 15, said drive motor 15 being provided on said body 1,

the main shaft body 17, the output end of the driving motor 15 is connected with the main shaft body 17, the main shaft body 17 is arranged on the machine body 1 through the adjusting seat 20, the air cavity 13 is positioned below the adjusting seat 20,

an eccentric sleeve 18, wherein the eccentric sleeve 18 is arranged on the main shaft body 17,

the driving rod 19, one end of the driving rod 19 is sleeved on the eccentric sleeve 18, the other end of the driving rod 19 is connected with the bed body 9, and the main shaft body 17 rotates to drive the bed body 9 to swing.

In this embodiment, the air blower 12 is used for compressing external wind and then sending the compressed external wind from the bottom of the screen port 10 to the upper surface of the screen 3 in the screen port 10, the raw materials on the screen 3 are screened in the area of the screen port 10, the driving motor 15 is used for driving the main shaft body 17 to rotate, thereby driving the bed body 9 to swing, and the operation of the control device can be more stabilized through the air blower 12 and the vibration motor, so that the screening effect is improved.

Example 5

Further comprising, on the basis of embodiment 4,

a front support beam 22, one end of the adjusting seat 20 is hinged on the front support beam 22,

a rear supporting beam 23, the other end of the adjusting seat 20 is slidingly arranged on the rear supporting beam 23, the front supporting beam 22 and the rear supporting beam 23 are respectively provided with a plurality of strip-shaped holes 24, the strip-shaped holes 24 are distributed along the horizontal direction,

the second lead screws 25 are arranged on the machine body 1, the second lead screws 25 are respectively positioned below the front support beam 22 and the rear support beam 23, a plurality of second lead screws 25 are uniformly distributed in the horizontal direction, and the second lead screws 25 are used for penetrating through the strip-shaped holes 24.

In this embodiment, one end of the adjusting seat 20 is hinged to the front support frame, the adjusting seat 20 is used for adjusting the inclination angle of the bed body 9, the front support beam 22 and the rear support beam 23 are connected with the machine body 1 through the second screw rod 25, the second screw rod 25 passes through the strip-shaped holes 24 on the front support beam 22 and the rear support beam 23, the bottom and the top of the front support beam 22 or the rear support beam 23 are adjusted in height through nuts, the second screw rod 25 is distributed along the left and right directions of the machine body 1, and therefore, the inclination angle of the front support beam 22 or the rear support beam 23 can be adjusted through adjusting the height of the nuts, because the second screw rod 25 is kept in a vertical direction, and therefore, the strip-shaped holes 24 are required to enable the rear support beam 23 or the front support beam 22 to keep inclined without being limited by hole walls.

Example 6

Further on the basis of embodiment 5, the adjusting seat 20 is further provided with a guide groove 27, the rear support beam 23 is further provided with a sliding part 26, the adjusting seat 20 swings along a hinge point, and the sliding part 26 is slidably arranged in the guide groove 27.

In this embodiment, the guide grooves 27 are located at both sides of the adjusting seat 20, and the sliding portion 26 slides in the guide grooves 27, so that the adjusting seat 20 can be positioned at different angles about the hinge point, the adjusting of the angle of the adjusting seat 20 is different from the adjusting of the angle of the adjusting seat 20 implemented by the front supporting beam 22 and the rear supporting beam 23, the adjusting range of the final sieve bed 2 is increased, the sliding portion 26 can be a bolt, the sliding portion 26 and the rear supporting beam 23 are fixed by screw holes, and the sliding portion 26 is fixed with the adjusting seat 20 by nuts,

in some embodiments, the front support beam 22 and the rear support beam 23 are respectively adjusted to be in a horizontal state, and then the adjusting seat 20 is finally adjusted to be in a state that one direction is horizontal and the other direction is inclined by 90 degrees by taking a hinge point as a center through the sliding part 26 and the guide groove 27. In this state, the sieve bed 2 is provided with two discharge ends, the positions of the two discharge ends are 180 degrees relative to each other, at this time, one discharge end of the sieve bed 2 is positioned at the high end of the inclined state, and the other discharge end of the sieve bed 2 is positioned at the low end of the inclined state.

Example 7

Further comprises a discharging component which is arranged on the bed body 9 and is positioned at the discharging end of the bed body 9, the discharging component comprises,

a first discharging groove 28, wherein the first discharging groove 28 is arranged at the discharging end of the bed body 9, the first discharging groove 28 forms an included angle with the horizontal direction, the first discharging groove 28 is used for feeding materials into one side of the device,

the second discharging grooves 30 are arranged at the discharging ends of the bed body 9, two second discharging grooves 30 are arranged, the inlet ends of the two second discharging grooves 30 are respectively communicated with the outlet ends of the two discharging channels,

the connecting plate 29, a plurality of connecting plate 29 all slide and set up on the second blown down tank 30, two adjacent connecting plates 29 overlap each other, a plurality of connecting plate 29 form the intercommunication space, first blown down tank 28 with the discharge end of the bed body 9 passes through connecting plate 29 intercommunication, the entrance point of connecting plate 29 with the middle part intercommunication of the exit end of the bed body 9, second blown down tank 30 is located the below of connecting plate 29.

In this embodiment, the discharging component is set to collect the materials on the bed 9 in a classified manner, after the materials are screened on the bed 9, the materials are separated into heavy materials, light materials and recleaning materials on the bed 9, the recleaning materials are located in the middle of the discharging end of the bed 9, that is, the materials sent out through the flow blocking strips 11, the heavy materials and the light materials are respectively sent out from the discharging channels on two sides of the flow blocking strips 11, the check materials fall into the first discharging grooves 28 through the connecting plates 29, so as to be sent out and returned to the feeding end of the sieve bed 2 for check, the heavy materials and the light materials are sent out through different second feeding grooves for processing after collection, the connecting plates 29 are multiple, the connecting plates 29 can slide on the adjacent connecting plates 29, so as to be elongated or shortened, adapt to different widths of the recleaning materials, the size of the discharging holes of the recleaning materials is determined according to different particle sizes, and the length of the connecting plates 29 can be fixed.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (10)

1. The gravity separator with the ultrasonic screening function comprises a machine body (1) and a screening bed (2) arranged on the machine body (1), wherein the screening bed (2) is provided with a screen (3), and is characterized by further comprising a screening assembly arranged on the screening bed (2), the screening assembly is used for cleaning the screening bed (2) and comprises,

the vibration body (4), the vibration body (4) is connected with the screen (3), the vibration body (4) comprises,

a vibrating rod (6), wherein the vibrating rod (6) is connected with the screen (3),

a vibration handle (7), wherein the vibration handle (7) is arranged on the vibration rod (6),

and the ultrasonic transducer (5) is arranged on the vibration body (4).

2. The gravity separator with the ultrasonic screening function according to claim 1, wherein the vibration handle (7) is symmetrical with the axis of the vibration rod (6), the vibration handle (7) is provided with a plurality of ultrasonic transducers (5), and the ultrasonic transducers (5) are arranged at symmetrical positions of the vibration handle (7).

3. A reselector with ultrasonic screening according to claim 1, characterized in that the vibrating bar (6) increases in cross-sectional area in the direction approaching the vibrating handle.

4. The gravity separator with the ultrasonic screening function according to claim 1, further comprising a vibration isolation member (8), wherein one end of the vibration isolation member (8) is connected with the vibration body (4), the other end of the vibration isolation member is connected with the screen bed (2), and the vibration body (4) is connected with the screen bed (2) through the vibration isolation member (8).

5. The gravity separator with ultrasonic screening function according to claim 1, characterized in that the screening bed (2) comprises,

the bed body (9), the bed body (9) is arranged on the machine body (1), the bed body (9) is provided with a screen material opening (10), the screen (3) is positioned in the screen material opening (10), the vibration body (4)) is positioned below the screen (3), the vibration body (4) is connected with the screen (3), the vibration body (4) is used for vibrating the screen (3),

a screen (3), wherein the screen (3) is arranged on the bed body (9),

the flow blocking strip (11), flow blocking strip (11) set up on the bed body (9), flow blocking strip (11) are located screen cloth (3) top, flow blocking strip (11) are located along the ejection of compact direction screen cloth (3) middle part, the both ends of flow blocking strip (11) form the discharge channel.

6. The gravity separator with ultrasonic cleaning function according to claim 5, further comprising,

an adjusting seat (20), wherein one end of the adjusting seat (20) is hinged on the machine body (1), the other end of the adjusting seat (20) is slidably arranged on the machine body (1), the bed body (9) is arranged on the adjusting seat (20) in a swinging way, the bed body (9) forms an included angle with the horizontal plane,

an elastic piece (21), one end of the elastic piece (21) is connected with the bed body (9), the other end of the elastic piece (21) is connected with the adjusting seat (20),

the vibration assembly is arranged on the adjusting seat (20), and the working end of the vibration assembly is connected with the bed body (9).

7. The machine of claim 6, wherein the vibration assembly comprises,

the air blower (12), the air blower (12) is arranged on the machine body (1), the outlet end of the air blower (12) is communicated with the inlet end of the sieving port (10), the machine body (1) is provided with an air cavity (13) and an air inlet (14), the air inlet (14) is communicated with the air cavity (13), the air blower (12) is positioned in the air cavity (13),

a driving motor (15), wherein the driving motor (15) is arranged on the machine body (1),

the main shaft body (17), the output end of the driving motor (15) is connected with the main shaft body (17), the main shaft body (17) is arranged on the machine body (1) through the adjusting seat (20), the air cavity (13) is positioned below the adjusting seat (20),

an eccentric sleeve (18), wherein the eccentric sleeve (18) is arranged on the main shaft body (17),

the driving rod (19), one end of the driving rod (19) is sleeved on the eccentric sleeve (18), the other end of the driving rod (19) is connected with the bed body (9), and the main shaft body (17) rotates to drive the bed body (9) to swing.

8. The gravity separator with ultrasonic cleaning function according to claim 7, further comprising,

a front supporting beam (22), one end of the adjusting seat (20) is hinged on the front supporting beam (22),

the other end of the adjusting seat (20) is arranged on the rear supporting beam (23) in a sliding way, a plurality of strip-shaped holes (24) are formed in the front supporting beam (22) and the rear supporting beam (23), the strip-shaped holes (24) are distributed along the horizontal direction,

the second lead screw (25), second lead screw (25) are provided on fuselage (1), second lead screw (25) are located respectively preceding supporting beam (22) with back supporting beam (23) below, a plurality of second lead screw (25) horizontal direction evenly distributed, second lead screw (25) are used for passing bar hole (24).

9. The reselection machine with ultrasonic screening function according to claim 8, characterized in that the adjusting seat (20) is further provided with a guide groove (27), the rear supporting beam (23) is further provided with a sliding part (26), the adjusting seat (20) swings along a hinge point, and the sliding part (26) is slidably arranged in the guide groove (27).

10. The gravity separator with ultrasonic screening function according to claim 5, further comprising a discharging assembly arranged on the bed body (9), the discharging assembly being positioned at a discharging end of the bed body (9), the discharging assembly comprising,

the first discharging groove (28), the first discharging groove (28) is arranged at the discharging end of the bed body (9), the first discharging groove (28) forms an included angle with the horizontal direction, the first discharging groove (28) is used for feeding materials into one side of the device,

the second discharging grooves (30) are arranged at the discharging ends of the bed body (9), two second discharging grooves (30) are arranged, the inlet ends of the two second discharging grooves (30) are respectively communicated with the outlet ends of the two discharging channels,

connecting plate (29), a plurality of connecting plate (29) all slide and set up on second blown down tank (30), adjacent two connecting plate (29) overlap each other, a plurality of connecting plate (29) form the intercommunication space, first blown down tank (28) with the discharge end of the bed body (9) passes through connecting plate (29) intercommunication, the entrance point of connecting plate (29) with the middle part intercommunication of the exit end of the bed body (9), second blown down tank (30) are located the below of connecting plate (29).

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