A high-efficiency screening vibrating screen

Abstract

The present invention relates to the technical field of screening devices, and in particular to an efficient screening vibrating screen. An efficient screening vibrating screen comprises a bracket, a screening plate and a plurality of screening mechanisms. Each screening mechanism comprises a movable screen plate, and the plurality of movable screen plates vibrate up and down synchronously, thereby exerting an upward lifting force on the material. When materials of different sizes fall on the movable screen plate, the movable screen plate is deflected due to their gravitational potential energy and the different distribution of materials of different sizes, so that the movable screen plate has a lifting effect on the material in different directions, thereby making the jumping of the material on the screening plate more irregular and the vibration direction more comprehensive. The present invention provides an efficient screening vibrating screen to solve the problems that the existing vibrating screen has no vibration in other directions during vibration screening, the screening effect is poor, and the screen holes are easily blocked.

Description

Technical Field

[0001] The invention relates to the technical field of screening devices, and in particular to a high-efficiency screening vibrating screen. Background Art

[0002] Vibrating screen is a screening device that uses the principle of vibration to separate materials of different particle sizes. It is widely used in many industries. Here are some details about vibrating screen: Types and classifications: Vibrating screens can be divided into linear vibrating screens, circular vibrating screens and elliptical vibrating screens according to different motion trajectories. Working principle: Vibrating screens are usually composed of vibrators, screen boxes, supporting devices and transmission devices. It produces reciprocating rotary vibration through vibrator excitation, so that the material completes the screening process on the screen surface. Application field: Vibrating screens are suitable for food, medicine, chemical industry, mining, building materials, transportation, energy and other fields for product grading and screening. Advantages and characteristics: Vibrating screens have the advantages of high efficiency, light weight, simple structure and easy maintenance. In particular, circular vibrating screens also have the characteristics of strong excitation force and low noise. Model types: There are many types of vibrating screens, such as rotary vibrating screens, linear vibrating screens, mining vibrating screens and laboratory vibrating screens, each with different characteristics and uses.

[0003] For example, the invention patent application with publication number CN115672728A provides a linear vibrating screen. During screening, the material stuck in the mesh is separated from the mesh under the action of pressure through the extrusion of the pressure rod and the plastic block, thereby preventing the mesh from being blocked by the material. However, the existing linear vibrating screen can generally only vibrate up and down during vibration screening, without vibration in other directions, which will result in inadequate screening, incomplete screening of the material, poor screening effect, and easy clogging of the mesh when the material vibrates up and down and falls back. Summary of the invention

[0004] The invention provides a high-efficiency screening vibrating screen to solve the problems that the existing vibrating screen has no vibration in other directions during vibrating screening, the screening effect is poor, and the screen holes are easily blocked.

[0005] The invention discloses a high-efficiency screening vibrating screen, which adopts the following technical scheme: a high-efficiency screening vibrating screen comprises a bracket, a screening plate and a plurality of screening mechanisms. The screening plate is arranged on the bracket, the screening plate is arranged obliquely, the two sides of the screening plate are a first side and a second side, and the first side of the screening plate is higher than the second side.

[0006] The sieve plate is provided with a plurality of first mounting hole groups and a plurality of second mounting hole groups, and the plurality of first mounting hole groups and the plurality of second mounting hole groups are all distributed along a first direction, the first direction is a horizontal direction, and is a direction from the first side to the second side of the sieve plate. Each second mounting hole group is between two adjacent first mounting hole groups. Each first mounting hole group includes a plurality of first mounting holes, and each second mounting hole group includes a plurality of second mounting holes. The plurality of first mounting holes and the plurality of second mounting holes are all distributed in sequence along a second direction, the second direction is a horizontal direction, and the first direction is perpendicular to the second direction. Along the second direction, each first mounting hole is between two second mounting holes adjacent to the first mounting hole.

[0007] Each screening mechanism includes a movable screen plate, and a movable screen plate is rotatably arranged in each first mounting hole and each second mounting hole. The movable screen plate is in a fish scale shape, and a side of the movable screen plate close to the first side of the screen plate is higher than a side of the movable screen plate close to the second side of the screen plate, and the movable screen plate is provided with a plurality of screen holes.

[0008] Further, the movable screen plate comprises a first curved surface, a second curved surface and a third curved surface. The first curved surface is close to the first side of the screen plate, the second curved surface and the third curved surface are close to the second side of the screen plate, and the concave surfaces of the first curved surface, the second curved surface and the third curved surface are all facing the second side of the screen plate, the second curved surface and the third curved surface are against each other and form a fish scale-like tip, and the first curved surface of the movable screen plate is higher than the second curved surface and the third curved surface of the movable screen plate.

[0009] Furthermore, each screening mechanism further comprises a plurality of first springs, the plurality of first springs are distributed along the circumference of the movable screen plate, the first springs connect the movable screen plate and the hole wall of the first mounting hole or the second mounting hole. The number of the first springs at the tip of the movable screen plate is greater than the number of the first springs at the first side of the first curved surface close to the screening plate.

[0010] Furthermore, each screening mechanism also includes a flexible retaining ring, which is arranged along the circumference of the movable screen plate, and the flexible retaining ring connects the movable screen plate and the hole wall of the first mounting hole or the second mounting hole.

[0011] Furthermore, the bracket includes an outer shell and a supporting base, the outer shell and the supporting base are fixedly connected, and the screening plate is arranged in the outer shell.

[0012] Furthermore, the high-efficiency screening vibrating screen also includes a vibration mechanism, which includes a vibration motor. The vibration motor is arranged on the outer shell and is used to vibrate the outer shell and the screening plate up and down.

[0013] Furthermore, a feed inlet is provided on the shell, and a discharge outlet is provided on the shell.

[0014] Furthermore, a material guide plate is provided on the second side of the screening plate, and the material guide plate is provided at the material discharge port.

[0015] Furthermore, an inspection cover is provided on the shell.

[0016] Furthermore, the high-efficiency screening vibrating screen also includes a connecting mechanism, which includes a plurality of elastic connecting members, the plurality of elastic connecting members are arranged along the circumference of the outer shell, and the elastic connecting members connect the outer shell and the bracket.

[0017] The beneficial effects of the present invention are as follows: the present invention provides a high-efficiency screening vibrating screen. First, the screening plate vibrates up and down, and the screening plate drives multiple movable screen plates to vibrate up and down synchronously, thereby having an upward lifting force on the material. Secondly, since the first side of the screening plate is higher than the second side and the side of the movable screen plate close to the first side of the screening plate is higher than the side of the movable screen plate close to the second side of the screening plate, the material has a lifting force to jump toward the second side of the screening plate. Finally, when materials of different sizes fall on the movable screen plate, due to their gravitational potential energy and the different distribution of materials of different sizes, the movable screen plate is deflected, and then the movable screen plate also has the effect of driving the material to move along the second direction, that is, along the second direction, one side of the movable screen plate is hit by the material and moves downward, causing the other side of the movable screen plate to be lifted upward, and the movable screen plate has a lifting force to drive the material to jump toward one side of the movable screen plate, thereby making the jumping of the material on the screening plate more irregular, the vibration orientation more comprehensive, and increasing the screening effect of the material on the movable screen plate. Also, when the material falls downward during the process of bouncing up and down, when the movable screen plate moves upward, under the action of the first spring, the movable screen plate tends to be hit by the material and move downward synchronously to reduce the impact between the material and the movable screen plate, thereby reducing the blockage of the screen holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 A schematic structural diagram of a high-efficiency screening vibrating screen provided by an embodiment of the present invention;

[0020] Figure 2 A front view of a high-efficiency screening vibrating screen provided by an embodiment of the present invention;

[0021] Figure 3 A schematic diagram of a portion of the structure of a high-efficiency screening vibrating screen provided by an embodiment of the present invention;

[0022] Figure 4A schematic structural diagram of a screening plate and a screening mechanism of a high-efficiency screening vibrating screen provided by an embodiment of the present invention;

[0023] Figure 5 A top view of a screening plate and a screening mechanism of a high-efficiency screening vibrating screen provided by an embodiment of the present invention;

[0024] Figure 6 for Figure 5 Sectional view at AA in the middle;

[0025] Figure 7 for Figure 6 The enlarged view of point B in the middle;

[0026] Figure 8 for Figure 6 Enlarged view of point C in the middle;

[0027] Fig. 9 A side view of a screening plate and a screening mechanism of a high-efficiency screening vibrating screen provided by an embodiment of the present invention;

[0028] Fig.10 for Fig. 9 Sectional view at DD in the middle;

[0029] Fig.11 for Fig.10 Enlarged view of point E in the middle.

[0030] In the figure: 100, bracket; 101, inspection cover; 102, feed port; 103, vibration motor; 104, elastic connector; 105, housing; 106, support base; 107, discharge port; 108, guide plate; 200, screening plate; 201, flexible retaining ring; 202, movable screening plate; 203, first spring; 204, first arc surface; 205, second arc surface; 206, third arc surface; 210, first mounting hole; 220, screening hole; 230, second mounting hole. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Reference Figures 1 to 11As shown, an embodiment of the present invention provides a high-efficiency screening vibrating screen, comprising a bracket 100, a screening plate 200 and a plurality of screening mechanisms. The screening plate 200 is arranged on the bracket 100, the screening plate 200 is arranged obliquely, the two sides of the screening plate 200 are a first side and a second side, and the first side of the screening plate 200 is higher than the second side.

[0033] The sieve plate 200 is provided with a plurality of first mounting hole groups and a plurality of second mounting hole groups, and the plurality of first mounting hole groups and the plurality of second mounting hole groups are all distributed along a first direction, which is a horizontal direction and is a direction from the first side to the second side of the sieve plate 200. Each second mounting hole group is located between two adjacent first mounting hole groups. Each first mounting hole group includes a plurality of first mounting holes 210, and each second mounting hole group includes a plurality of second mounting holes 230. The plurality of first mounting holes 210 and the plurality of second mounting holes 230 are all distributed in sequence along a second direction, which is a horizontal direction, and the first direction is perpendicular to the second direction. Along the second direction, each first mounting hole 210 is located between two second mounting holes 230 adjacent to the first mounting hole 210. Figure 2 For example, the first direction is the left-right direction, the first side of the screen plate 200 is located in the upper right direction in the figure, and the second side of the screen plate 200 is located in the lower left direction in the figure.

[0034] Each screening mechanism includes a movable screen plate 202, and a movable screen plate 202 is rotatably disposed in each first mounting hole 210 and each second mounting hole 230. The movable screen plate 202 is in a fish scale shape, and a side of the movable screen plate 202 close to the first side of the screen plate 200 is higher than a side of the movable screen plate 202 close to the second side of the screen plate 200, and the movable screen plate 202 is provided with a plurality of screen holes 220.

[0035] The material is put onto the screening plate 200, and the material moves from the first side of the screening plate 200 to the second side of the screening plate 200. In this process, the screening plate 200 and the plurality of movable screening plates 202 vibrate up and down. First, since the screening plate 200 vibrates up and down, the screening plate 200 drives the movable screening plate 202 to vibrate up and down synchronously, thereby exerting an upward lifting force on the material. Secondly, since the first side of the screening plate 200 is higher than the second side, and the side of the movable screening plate 202 close to the first side of the screening plate 200 is higher than the side of the movable screening plate 202 close to the second side of the screening plate 200, the material has a lifting force that jumps toward the second side of the screening plate 200. Finally, when materials of different sizes fall on the movable screen plate 202, due to their gravitational potential energy and the different distribution of materials of different sizes, the movable screen plate 202 is deflected, and the movable screen plate 202 also has the function of driving the material to move along the second direction, that is, along the second direction, one side of the movable screen plate 202 is hit by the material and moves downward, causing the other side of the movable screen plate 202 to be lifted upward. The movable screen plate 202 has a lifting force that drives the material to jump toward one side of the movable screen plate 202, thereby making the jumping of the material on the screening plate 200 more irregular, and the vibration orientation is more comprehensive, thereby increasing the screening effect of the material on the movable screen plate 202.

[0036] Also, when the material falls downward during the process of bouncing up and down, when the movable screen plate 202 moves upward, under the action of the first spring 203, the movable screen plate 202 tends to be hit by the material and move downward synchronously, so as to weaken the impact between the material and the movable screen plate 202, thereby reducing the blockage of the screen hole 220.

[0037] In this embodiment, the fish-scale movable screen plate 202 includes a first curved surface 204, a second curved surface 205 and a third curved surface 206. The first curved surface 204 is close to the first side of the screen plate 200, the second curved surface 205 and the third curved surface 206 are close to the second side of the screen plate 200, and the concave surfaces of the first curved surface 204, the second curved surface 205 and the third curved surface 206 are all facing the second side of the screen plate 200, one end of the second curved surface 205 and one end of the third curved surface 206 abut against each other and form a fish-scale-shaped tip, and the line connecting the tip and the middle of the first curved surface 204 passes through the arc center of the first curved surface 204. And the first curved surface 204 of the movable screen plate 202 is higher than the second curved surface 205 and the third curved surface 206 of the movable screen plate 202.

[0038] In this embodiment, each screening mechanism further includes a plurality of first springs 203, which are distributed along the circumference of the movable screen plate 202, and the first springs 203 connect the movable screen plate 202 and the hole wall of the first mounting hole 210 or the second mounting hole 230. The first springs 203 at the tip of the movable screen plate 202 are more than the first springs 203 at the first side of the first curved surface 204 close to the screen plate 200, so that the tip of the movable screen plate 202 is difficult to move downward, so as to ensure that the screening path of the material on the screen plate 200 is long enough.

[0039] Since the first curved surface 204 of the movable screen plate 202 is higher than the second curved surface 205 and the third curved surface 206 of the movable screen plate 202, the first curved surface 204 of the screening plate 200 has a certain blocking effect on the material, so that the screening path of the material on the screening plate 200 is longer, further improving the screening effect and preventing the material from being screened out of the screening plate 200 too quickly.

[0040] In this embodiment, each screening mechanism further includes a flexible retaining ring 201, which is arranged along the circumference of the movable screen plate 202, and the flexible retaining ring 201 connects the movable screen plate 202 and the hole wall of the first mounting hole 210 or the second mounting hole 230. The flexible retaining ring 201 ensures the sealing of the screening plate 200, so that the material will not leak from between the movable screen plate 202 and the screening plate 200. The flexible retaining ring 201 can be deformed so as not to hinder the free deflection of the movable screen plate 202.

[0041] In this embodiment, the bracket 100 includes a shell 105 and a support base 106 , the shell 105 and the support base 106 are fixedly connected, and the screening plate 200 is disposed in the shell 105 .

[0042] In this embodiment, the high-efficiency screening vibrating screen further includes a vibration mechanism, which includes a vibration motor 103 . The vibration motor 103 is disposed on the housing 105 and is used to make the housing 105 and the screening plate 200 vibrate up and down.

[0043] In this embodiment, a feed port 102 is provided on the housing 105, and the feed port 102 is close to the first side of the screen plate 200. A discharge port 107 is provided on the housing 105, and the discharge port 107 is close to the second side of the screen plate 200. The material is poured into the housing 105 from the feed port 102, and the material falls onto the screen plate 200 and the movable screen plate 202. The material passing through the sieve holes 220 on the movable screen plate 202 is finally collected from the discharge port 107.

[0044] In this embodiment, a guide plate 108 is disposed on the second side of the screening plate 200, and the guide plate 108 is disposed at the discharge port 107. Part of the oversized materials are eventually discharged from the guide plate 108.

[0045] In this embodiment, an inspection cover 101 is further provided on the housing 105. The inspection cover 101 is openable and closable. When the inspection cover 101 is opened, it is convenient to monitor the screening situation.

[0046] In this embodiment, the high-efficiency screening vibrating screen further includes a connecting mechanism, which includes a plurality of elastic connecting members 104, which are arranged along the circumference of the housing 105, and the elastic connecting members 104 connect the housing 105 and the bracket 100. The elastic connecting member 104 can be an elastic connecting rod or a spring.

[0047] Working process: Start the vibration motor 103, which drives the housing 105 and the screening plate 200 to vibrate up and down. Pour the material into the housing 105 from the feed port 102, and the material falls onto the screening plate 200 and the movable screening plate 202, and moves toward the discharge port 107 while vibrating up and down.

[0048] First, since the screening plate 200 vibrates up and down, the screening plate 200 drives the movable screening plate 202 to vibrate up and down synchronously, thereby exerting an upward lifting force on the material. Secondly, since the first side of the screening plate 200 is higher than the second side and the first curved surface 204 of the movable screening plate 202 is higher than the second curved surface 205 and the third curved surface 206 of the movable screening plate 202, there is a lifting force on the material to jump toward the second side of the screening plate 200. Finally, when materials of different sizes fall on the movable screening plate 202, due to their gravitational potential energy and the different distribution of materials of different sizes, the movable screening plate 202 is deflected, and then the movable screening plate 202 also moves the materials along the second direction, that is, along the second direction, one side of the movable screening plate 202 is impacted by the material and moves downward, causing the other side of the movable screening plate 202 to be lifted upward, and the movable screening plate 202 has a lifting force to drive the materials to jump toward one side of the movable screening plate 202. This makes the material bounce on the screening plate 200 more irregular, the vibration direction more comprehensive, and the screening effect of the material on the movable screen plate 202 is increased.

[0049] Also, when the material falls downward during the process of bouncing up and down, when the movable screen plate 202 moves upward at this time, under the action of the first spring 203, the movable screen plate 202 has a tendency to be hit by the material and move downward synchronously, so as to weaken the impact between the material and the movable screen plate 202, thereby reducing the situation where the screen hole 220 is blocked. At the same time, since the first curved surface 204 of the movable screen plate 202 is higher than the second curved surface 205 and the third curved surface 206 of the movable screen plate 202, the first curved surface 204 of the screening plate 200 has a certain blocking effect on the material, so that the screening path of the material on the screening plate 200 is longer, further improving the screening effect, and preventing the material from being screened out of the screening plate 200 too quickly. The screening plate 200 can also occupy a smaller area, saving space.

[0050] Some of the oversized materials are eventually discharged from the guide plate 108 , and the materials that pass through the sieve holes 220 on the movable sieve plate 202 are eventually collected from the discharge port 107 .

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-efficiency screening vibrating screen, characterized in that: It includes a bracket, a screening plate and a plurality of screening mechanisms; the screening plate is arranged on the bracket, the screening plate is arranged obliquely, the two sides of the screening plate are a first side and a second side, and the first side of the screening plate is higher than the second side; The sieve plate is provided with a plurality of first mounting hole groups and a plurality of second mounting hole groups, and the plurality of first mounting hole groups and the plurality of second mounting hole groups are all distributed along a first direction, the first direction is a horizontal direction, and is a direction from the first side to the second side of the sieve plate; each second mounting hole group is between two adjacent first mounting hole groups; each first mounting hole group includes a plurality of first mounting holes, and each second mounting hole group includes a plurality of second mounting holes, and the plurality of first mounting holes and the plurality of second mounting holes are all distributed in sequence along a second direction, the second direction is a horizontal direction, and the first direction is perpendicular to the second direction; along the second direction, each first mounting hole is between two second mounting holes adjacent to the first mounting hole; Each screening mechanism includes a movable screen plate, and a movable screen plate is arranged in each first mounting hole and each second mounting hole; the movable screen plate is in the shape of fish scales, and the side of the movable screen plate close to the first side of the screen plate is higher than the side of the movable screen plate close to the second side of the screen plate, and the movable screen plate is provided with a plurality of screen holes. Each screening mechanism also includes a plurality of first springs, and the plurality of first springs are distributed along the circumference of the movable screen plate, and the first springs connect the movable screen plate and the hole wall of the first mounting hole or the second mounting hole.

2. The high-efficiency screening vibrating screen according to claim 1, characterized in that: The movable screen plate includes a first curved surface, a second curved surface and a third curved surface; the first curved surface is close to the first side of the screen plate, the second curved surface and the third curved surface are close to the second side of the screen plate, and the concave surfaces of the first curved surface, the second curved surface and the third curved surface are all facing the second side of the screen plate, the second curved surface and the third curved surface are against each other and form a fish scale-like tip, and the first curved surface of the movable screen plate is higher than the second curved surface and the third curved surface of the movable screen plate.

3. The high-efficiency screening vibrating screen according to claim 2, characterized in that: The number of the first springs at the tip of the movable screen plate is greater than the number of the first springs at the first side of the first curved surface close to the screen plate.

4. The high-efficiency screening vibrating screen according to claim 1, characterized in that: Each screening mechanism further comprises a flexible retaining ring, which is arranged along the circumference of the movable screen plate and connects the movable screen plate and the hole wall of the first mounting hole or the second mounting hole.

5. The high-efficiency screening vibrating screen according to claim 1, characterized in that: The bracket comprises an outer shell and a supporting base, the outer shell and the supporting base are fixedly connected, and the screening plate is arranged in the outer shell.

6. The high-efficiency screening vibrating screen according to claim 5, characterized in that: It also includes a vibration mechanism, which includes a vibration motor. The vibration motor is arranged on the shell and is used to make the shell and the screening plate vibrate up and down.

7. The high-efficiency screening vibrating screen according to claim 5, characterized in that: The outer shell is provided with a feeding port and a discharging port.

8. The high-efficiency screening vibrating screen according to claim 7, characterized in that: A material guide plate is arranged on the second side of the screening plate, and the material guide plate is arranged at the material discharge port.

9. The high-efficiency screening vibrating screen according to claim 5, characterized in that: An inspection cover is also provided on the shell.

10. The high-efficiency screening vibrating screen according to claim 5, characterized in that: It also includes a connecting mechanism, which includes a plurality of elastic connecting members, which are arranged along the circumference of the shell, and the elastic connecting members connect the shell and the bracket.

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