Screening structure

Abstract

The utility model provides a screening structure and relates to the technical field of vibrating screens, the screening structure comprises a vibrating screen hopper, a vibrating screen and a removing roller, the removing roller comprises a plurality of roller wheels, a roller rod and a bearing, each roller wheel comprises a removing sleeve and a plurality of removing rods, and the outer portion of one bearing is in interference fit with a first erecting base; the exterior of the other bearing is in interference fit with a second erecting seat, the interior of the first erecting seat is in threaded connection with a lead screw, and one end of the lead screw is in transmission connection with a motor; according to the technical scheme, a motor controls a lead screw to rotate, the threaded connection condition of the lead screw and a first erecting base is adjusted, so that the first erecting base and a second erecting base slide in two track frames correspondingly, a clearing roller is driven to move from one end to the other end at the bottom of a vibrating screen, and a plurality of rollers can roll at the bottom of the vibrating screen; the plurality of cleaning rods on the roller are successively cut into different meshes on the vibrating screen, so that ores blocked in the meshes can be conveniently extruded, the cleaning efficiency is high, and the cleaning is clean.

Description

Technical Field

[0001] The utility model relates to the technical field of vibrating screens, in particular to a screening structure. Background Art

[0002] The vibrating screen works by using the reciprocating vibration generated by the vibrator excitation. The upper rotating weight of the vibrator causes the screen surface to produce a plane gyration vibration, while the lower rotating weight causes the screen surface to produce a conical gyration vibration. The combined effect causes the screen surface to produce a complex gyration vibration. Its vibration trajectory is a complex space curve. The curve is projected as a circle on the horizontal plane and an ellipse on the vertical plane. The amplitude can be changed by adjusting the exciting force of the upper and lower rotating weights. And adjusting the spatial phase angle of the upper and lower weights can change the curve shape of the screen surface motion trajectory and change the motion trajectory of the material on the screen surface.

[0003] Vibrating screening equipment can be divided into mining vibrating screens, light fine vibrating screens and experimental vibrating screens according to weight and purpose, and mining vibrating screens can be divided into high-efficiency heavy-duty screens, self-centering vibrating screens, elliptical vibrating screens, dewatering screens, circular vibrating screens, banana screens and linear vibrating screens, etc. The elliptical screen is a vibrating screen with an elliptical motion trajectory. It has the advantages of high efficiency, high screening accuracy and wide range of applications. It is suitable for solvent and cold sinter screening in the metallurgical industry, ore grading in the mining industry, grading and dehydration and de-mediuming in the coal industry.

[0004] The patent document with publication number CN218872812U discloses a high-efficiency coal selection device with an anti-blocking vibrating screen. An air compressor is started, and the air compressed by the air compressor is introduced into a hose. The hose introduces the gas into a connecting pipe, and then is sprayed out from a number of nozzles, so that the raw coal stuck in the screening plate can be exported. The controller is started, and the controller drives the screw to rotate, and the screw drives the front displacement block to move, thereby driving the connecting pipe to move through the displacement block, so that the nozzle can move above the screening plate, and all the raw coal stuck in the screening plate can be exported, thereby preventing the raw coal from blocking the screening plate and improving the raw coal screening and coal selection efficiency.

[0005] However, in the process of implementing the above technical solution, it is found that the above technical solution has the following technical problems:

[0006] The existing anti-blocking vibrating screen high-efficiency coal preparation device prevents the raw coal from blocking the screen plate by applying impact force to the holes of the screen plate using high-pressure air blown out by an air compressor. However, in actual application, the nozzle for cleaning the obstructions inside the small holes on the screen plate is set at the top of the screen plate, and pressure is applied from the top to the bottom, which makes it difficult to remove most of the obstructions and easily generates dust pollution in the working area. Utility Model Content

[0007] In order to overcome the shortcomings of the existing anti-blocking vibrating screen high-efficiency coal selection device, in which the nozzle for cleaning the obstructions inside the small holes on the screening plate is arranged at the top of the screening plate, and pressure is applied from the top to the bottom, which makes it difficult to remove most of the obstructions and easily generates dust pollution in the working area, the embodiment of the present application provides a screening structure, by arranging a cleaning roller at the bottom of the vibrating screen, when the motor controls the rotation of the screw rod and adjusts the threaded connection between the screw rod and the first mounting seat, the first mounting seat and the second mounting seat slide inside the two track frames respectively, driving the cleaning roller to move from one end to the other end at the bottom of the vibrating screen, so that multiple rollers can roll at the bottom of the vibrating screen, and with the help of multiple cleaning rods on the rollers successively cutting into different mesh holes on the vibrating screen, the ore blocked in the mesh holes can be squeezed out, thereby avoiding clogging of the mesh holes on the vibrating screen and achieving efficient cleaning.

[0008] The technical solution adopted by the embodiment of the present application to solve the technical problem is:

[0009] A screening structure comprises a vibrating screen bucket, a vibrating screen mesh and a cleaning roller, wherein the vibrating screen mesh is arranged inside the vibrating screen bucket;

[0010] The cleaning roller is arranged at the bottom of the motor;

[0011] Wherein, the cleaning roller comprises a plurality of rollers, the rollers comprise a cleaning sleeve, the outer wall of the cleaning sleeve is processed with a plurality of cleaning rods, the plurality of cleaning rods are evenly spaced and distributed around the center of the cleaning sleeve, and the inner pins of the plurality of rollers are connected with the same roller rod;

[0012] Both ends of the roller rod are interference-fitted with bearings, the outside of one bearing is interference-fitted with a first mounting seat, and the outside of the other bearing is interference-fitted with a second mounting seat, the inside of the first mounting seat is threadedly connected to a screw rod, and one end of the screw rod is transmission-connected to a motor.

[0013] In a possible implementation, the length of the cleaning rods on the rollers is adapted to be connected to the bottom of the vibrating screen, and the cleaning rods extend into the meshes on the vibrating screen.

[0014] In a possible implementation, a plurality of gaskets are sleeved on the outside of the roller rod, and the plurality of gaskets are respectively located between two adjacent roller wheels.

[0015] In a possible implementation, a track frame is disposed on the outside of the first mounting seat and the second mounting seat, one side of the track frame is fixed to the side wall of the vibrating screen bucket, the screw rod is controlled by a motor to drive the first mounting seat to slide inside one track frame, and the second mounting seat is slidably connected to the inside of the other track frame.

[0016] In a possible implementation, a guide slide bar is pin-connected to the interior of one of the track frames, and the second mounting seat is slidably connected to the exterior of the guide slide bar.

[0017] In one possible implementation, a mounting frame is provided inside the vibrating screen bucket, and both sides of the mounting frame are fixed to the inner wall of the vibrating screen bucket, the vibrating screen is mounted on the top of the mounting frame, and the cleaning roller is rollingly connected to the inner side of the mounting frame and pushes the obstruction in the mesh of the vibrating screen to exit from the inside of the vibrating screen to the top.

[0018] In summary, the utility model includes at least one of the following beneficial technical effects:

[0019] 1. By setting a cleaning roller at the bottom of the vibrating screen, when the motor controls the screw rod to rotate and adjusts the threaded connection between the screw rod and the first mounting seat, the first mounting seat and the second mounting seat slide inside the two track frames respectively, driving the cleaning roller to move from one end to the other end at the bottom of the vibrating screen, so that multiple rollers can roll at the bottom of the vibrating screen, and with the help of multiple cleaning rods on the rollers, they successively cut into different meshes on the vibrating screen, so that the ore blocked in the mesh can be squeezed out, avoiding the mesh blockage on the vibrating screen, and cleaning efficiently, solving the problem that it is difficult to remove the blockage by blowing air from the top to the bottom, which is easy to cause dust pollution;

[0020] 2. By arranging the cleaning roller to be composed of multiple rollers and multiple gaskets which are staggered and sleeved on the outside of the roller rod, when rollers with cleaning rods of different lengths and gaskets of different thicknesses are selected, the cleaning roller can adapt to flat and arc-shaped vibrating screens and remove blockages on vibrating screens with meshes of different sizes, which is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 For this utility model Figure 1 The enlarged schematic diagram of the middle A part;

[0023] Figure 3 This is a schematic diagram of the installation structure of the roller of the utility model;

[0024] Figure 4 The utility model is a schematic diagram of the overall structure of the cleaning roller.

[0025] Figure numerals: 1, vibrating screen bucket; 2, cleaning roller; 201, roller wheel; 2011, cleaning rod; 2012, cleaning sleeve; 202, gasket; 203, roller rod; 3, mounting frame; 4, vibrating screen; 5, track frame; 6, guide slide rod; 7, motor; 8, screw rod; 9, first mounting seat; 10, bearing; 11, second mounting seat. DETAILED DESCRIPTION

[0026] The technical solution in the embodiment of the present application is to solve the problems of the above-mentioned background technology, and the overall idea is as follows:

[0027] Embodiment 1:

[0028] This embodiment introduces a specific structure of a screening structure. Figure 1-Figure 4 As shown, it includes a vibrating screen bucket 1, a vibrating screen mesh 4 arranged inside the vibrating screen bucket 1 and a cleaning roller 2 arranged at the bottom of a motor 7, the cleaning roller 2 includes a plurality of rollers 201, the roller 201 includes a cleaning sleeve 2012, the outer wall of the cleaning sleeve 2012 is processed with a plurality of cleaning rods 2011, and the inner pins of the plurality of rollers 201 are connected with the same roller rod 203;

[0029] like Figures 2 to 4 As shown, both ends of the roller rod 203 are interference-fitted with bearings 10, the outside of one bearing 10 is interference-fitted with a first mounting seat 9, the outsides of the first mounting seat 9 and the second mounting seat 11 are both provided with a track frame 5, one side of the track frame 5 is fixedly processed with the side wall of the vibrating screen bucket 1, the outside of the other bearing 10 is interference-fitted with the second mounting seat 11, the inside of the first mounting seat 9 is threadedly connected with a screw rod 8, and one end of the screw rod 8 is transmission-connected with a motor 7;

[0030] The screw rod 8 is controlled by the motor 7 to rotate. After adjusting the screw rod 8 to be threadedly connected with the first mounting seat 9, the first mounting seat 9 can be driven to slide inside one track frame 5, and the second mounting seat 11 slides inside the other track frame 5, so as to support the cleaning roller 2 to move from one end of the vibrating screen bucket 1 to the other end between the two track frames 5;

[0031] Secondly, a plurality of cleaning rods 2011 are evenly spaced around the center of the cleaning sleeve 2012, and the lengths of the cleaning rods 2011 on the plurality of rollers 201 are adapted to be connected to the bottom of the vibrating screen 4. When rollers 201 with cleaning rods 2011 of different lengths and gaskets 202 of different thicknesses are selected, the cleaning rods 2011 can be extended into the mesh holes of the vibrating screen 4. When the cleaning roller 2 is controlled to move at the bottom of the vibrating screen 4, the cleaning rods 2011 extend into the mesh holes of the vibrating screen 4, so that the roller rods 203 rotate between the two bearings 10, thereby achieving the effect of making the cleaning roller 2 roll at the bottom of the vibrating screen 4.

[0032] Furthermore, in order to make the individual rollers 201 aligned with the center of the same row of meshes on the vibrating screen 4, as shown in FIG. Figure 2 and Figure 4 As shown, the outer part of the roller rod 203 is sleeved with a plurality of gasket rings 202. By making the plurality of gasket rings 202 respectively located between two adjacent roller wheels 201, the gap between the two roller wheels 201 can be filled, and the distance between the two roller wheels 201 can be controlled, which is conducive to using the cleaning rod 2011 to push out the blockage in the mesh of the vibrating screen 4 when the roller wheel 201 rolls at the bottom of the vibrating screen 4;

[0033] Furthermore, in order to prevent the second mounting seat 11 from shaking when moving with the cleaning roller 2 and inside the track frame 5, Figure 3 and Figure 4 As shown, a guide slide bar 6 is pin-connected inside a track frame 5. When the second mounting seat 11 slides inside the track frame 5, the second mounting seat 11 slides outside the guide slide bar 6 at the same time, and the guide slide bar 6 can be used to limit the movable position of the second mounting seat 11.

[0034] The above design is to mount the cleaning roller 2 at the bottom of the vibrating screen 4, so that the two ends of the cleaning roller 2 are supported by two track frames 5, and one end of the roller rod 203 on the cleaning roller 2 is connected to one track frame 5 through the first mounting seat 9 and the bearing 10, and the other end of the roller rod 203 is connected to the other track frame 5 through the second mounting seat 11 and the bearing 10. When the motor 7 controls the screw rod 8 to rotate and adjusts the threaded connection between the screw rod 8 and the first mounting seat 9, the first mounting seat 9 and the second mounting seat 11 slide inside the two track frames 5 respectively, driving the cleaning roller 2 to move from one end to the other end at the bottom of the vibrating screen 4;

[0035] In this process, since the cleaning roller 2 is composed of a plurality of rollers 201 and a plurality of gaskets 202 which are staggeredly sleeved on the outside of the roller rod 203, and one end of the cleaning rod 2011 on the roller 201 extends into the inner part of the mesh of the vibrating screen 4, when the cleaning roller 2 moves as a whole, the plurality of rollers 201 can be rolled at the bottom of the vibrating screen 4, and the plurality of cleaning rods 2011 on the roller 201 successively cut into different meshes on the vibrating screen 4, and the ore blocked in the mesh can be squeezed out, thereby achieving the cleaning work and ensuring the screening effect of the vibrating screen 4;

[0036] At the same time, because the cleaning roller 2 rolls from one end to the other end at the bottom of the vibrating screen 4, the cleaning roller 2 will not occupy the local area at the bottom of the vibrating screen 4 for a long time, affecting the function of the vibrating screen 4 to screen ore.

[0037] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A screening structure, characterized in that: include: Vibrating screen bucket (1); A vibrating screen (4) arranged inside the vibrating screen bucket (1); A cleaning roller (2) is arranged at the bottom of the motor (7); The cleaning roller (2) comprises a plurality of rollers (201), the rollers (201) comprise a cleaning sleeve (2012), the outer wall of the cleaning sleeve (2012) is processed with a plurality of cleaning rods (2011), the plurality of cleaning rods (2011) are evenly spaced and distributed around the center of the cleaning sleeve (2012), and the inner pins of the plurality of rollers (201) are connected to the same roller rod (203); Both ends of the roller rod (203) are interference-fitted with bearings (10); the outside of one bearing (10) is interference-fitted with a first mounting seat (9); the outside of the other bearing (10) is interference-fitted with a second mounting seat (11); the inside of the first mounting seat (9) is threadedly connected to a screw rod (8); one end of the screw rod (8) is drivingly connected to a motor (7).

2. A screening structure according to claim 1, characterized in that: The lengths of the cleaning rods (2011) on the rollers (201) are adapted to be connected to the bottom of the vibrating screen (4), and the cleaning rods (2011) extend into the mesh holes on the vibrating screen (4).

3. A screening structure according to claim 1, characterized in that: The roller rod (203) is sleeved with a plurality of gasket rings (202) on its exterior, and the plurality of gasket rings (202) are respectively located between two adjacent roller wheels (201).

4. A screening structure according to claim 1, characterized in that: A track frame (5) is disposed outside the first mounting seat (9) and the second mounting seat (11), and one side of the track frame (5) is fixedly processed to the side wall of the vibrating screen bucket (1); The screw rod (8) is controlled by a motor (7) to drive the first mounting seat (9) to slide inside one track frame (5), and the second mounting seat (11) is slidably connected inside another track frame (5).

5. A screening structure according to claim 4, characterized in that: A guide slide bar (6) is pin-connected inside the track frame (5), and the second mounting seat (11) is slidably connected to the outside of the guide slide bar (6).

6. A screening structure according to claim 1, characterized in that: A mounting frame (3) is provided inside the vibrating screen bucket (1), and two sides of the mounting frame (3) are fixedly mounted on the inner wall of the vibrating screen bucket (1). The vibrating screen (4) is mounted on the top of the mounting frame (3), and the cleaning roller (2) is connected to the inner side of the mounting frame (3) in a rolling manner, and pushes the obstruction in the mesh of the vibrating screen (4) out from the inside of the vibrating screen (4) to the top.

Images