Screen cleaning device of grading screening equipment

Abstract

The utility model discloses a screen cleaning device of grading screening equipment, and relates to the technical field of screen cleaning devices, the screen cleaning device comprises an upper frame and a lower frame located at the bottom of the upper frame, a screen is connected between the upper frame and the lower frame, the screen comprises a mounting part, an upper net surface and a lower net surface, the mounting part is located on the outer ring surface of the upper net surface and the outer ring surface of the lower net surface, and the lower net surface is located on the mounting part. A mounting ring is connected between the upper frame and the lower frame, the mounting part is located between the upper frame and the lower frame, and the mounting ring fixes the mounting part between the upper frame and the lower frame. According to the screen cleaning device of the grading screening equipment, the multiple airflow rotating wheel vibrators are arranged on the screen, the screening capacity of the screen is improved through the multiple airflow rotating wheel vibrators, the situation that vibration force of a vibration machine at the bottom of the screening equipment is attenuated when being transmitted to the top of the screening equipment is avoided, and meanwhile the vibration force of the vibration machine at the bottom of the screening equipment is reduced. And the upper net surface and the lower net surface at the top can be driven to vibrate simultaneously.

Description

Technical Field

[0001] The utility model relates to the technical field of net cleaning devices, and more particularly to a net cleaning device for graded screening equipment. Background Art

[0002] Dry powder screening equipment is a screening machine designed specifically for dry powder materials, primarily used in the construction, chemical, and other fields. These machines utilize vibration technology, often equipped with a vibrating motor as a power source, to drive the screen surface to vibrate at high frequencies, enabling separation, filtration, impurity removal, and grading of dry powder materials by particle size.

[0003] The current dry powder screening equipment still has the following problems:

[0004] 1. When the material falls on the screen, it will impact the screen, causing damage to the screen. When the screen is worn to a certain extent, the screening ability of the material will be reduced. Since it is not easy to find the damage of the screen in time inside the equipment, the material screening will fail.

[0005] 2. When the current screening device is in use, since the vibration device is located at the bottom of the equipment, when the vibration force is transmitted to the screen, it will be attenuated, resulting in a decrease in screening efficiency;

[0006] 3. When maintaining the screen, the two screen frames are not easy to disassemble and assemble, which will extend the maintenance time.

[0007] Therefore, it is necessary to propose a screen cleaning device for graded screening equipment to solve the above problems. Utility Model Content

[0008] In view of the above problems, the present invention provides a screen cleaning device for graded screening equipment, which has the functions of increasing the service life of the screen and improving the screening efficiency.

[0009] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0010] A screen cleaning device for graded screening equipment comprises an upper frame and a lower frame located at the bottom of the upper frame, a screen is connected between the upper and lower frames, the screen comprises a mounting portion and an upper mesh surface and a lower mesh surface, the mounting portion is located on the outer annular surfaces of the upper mesh surface and the lower mesh surface, a mounting ring is connected between the upper and lower frames, the mounting portion is located between the upper and lower frames, and the mounting ring fixes the mounting portion between the upper and lower frames;

[0011] The bottom of the screen is connected to a vibration assembly, which includes multiple airflow wheel vibrators. The side wall of the lower frame is connected to a main air pipe, and the end of the main air pipe located outside the lower frame is connected to an external air supply device. The end of the main air pipe located inside the lower frame is connected to an air distribution ring, and multiple air distribution pipes are connected to the outer wall of the air distribution ring. The other end of each air distribution pipe is connected to the airflow wheel vibrator.

[0012] Preferably, the mounting ring comprises a symmetrical arc-shaped hoop, both ends of the arc-shaped hoop are connected to mounting plates, one end of the mounting ring is connected to a mounting rod via a bolt, and the end of the mounting rod is provided with a thread.

[0013] Preferably, a boss portion is provided on the mounting plate on the side of the arc-shaped hoop away from the mounting rod, and the end of the mounting ring is connected to a clamping plate via bolts, and the clamping plate is located inside the boss portion.

[0014] Preferably, the top of the airflow wheel vibrator is connected to a connecting rod, the connecting rod passes through the lower mesh surface, and the top is connected to the upper mesh surface.

[0015] Preferably, a linkage bar is connected between the upper net surface and the lower net surface.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. This device is equipped with multiple airflow rotor vibrators on the screen to increase the screening capacity of the screen, avoiding the attenuation of the vibration force of the vibrator at the bottom of the screening equipment when it is transmitted to the top. At the same time, it can drive the top upper and lower mesh surfaces to vibrate simultaneously.

[0018] 2. This device sets an upper mesh surface and a lower mesh surface on the screen. The double mesh surface can increase the service life of the screen and avoid the impact of mesh damage on material screening due to failure to discover it in time. At the same time, the linked bars connected together can increase the synchronization of the two mesh surfaces and improve the screening efficiency.

[0019] 3. The device is provided with a symmetrical arc hoop, and the boss portion on the arc hoop increases the stability of the mounting ring connection, and is easy to disassemble and assemble, thereby improving convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the upper frame and lower frame structure of the utility model;

[0021] Figure 2 It is a cross-sectional view of the upper frame and lower frame structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the lower mesh surface and the airflow wheel vibrator of the utility model;

[0023] Figure 4 This is a schematic diagram of the mounting ring structure in the present invention.

[0024] Reference numerals:

[0025] 101. Upper frame; 102. Lower frame; 103. Screen; 104. Upper mesh surface; 105. Lower mesh surface; 106. Mounting portion; 107. Mounting ring; 108. Air flow impeller vibrator; 109. Main air pipe; 110. Air distribution ring; 111. Air distribution pipe; 112. Arc hoop; 113. Mounting plate; 114. Mounting rod; 115. Boss portion; 116. Clamping plate; 117. Connecting rod; 118. Linkage bar. DETAILED DESCRIPTION

[0026] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-4 , a screen cleaning device for graded screening equipment, including an upper frame 101 and a lower frame 102 located at the bottom of the upper frame 101, the upper frame 101 and the lower frame 102 fix the screen 103 in the middle and are fixed with a mounting ring 107, a screen 103 is connected between the upper frame 101 and the lower frame 102, the screen 103 includes a mounting portion 106 and an upper mesh surface 104 and a lower mesh surface 105, the mounting portion 106 is located on the outer ring surface of the upper mesh surface 104 and the lower mesh surface 105, the upper mesh surface 104 and the lower mesh surface 105 are the same mesh surface, when a top upper mesh surface 104 is damaged by impact After that, the lower mesh surface 105 at the bottom will come into play. A mounting ring 107 is connected between the upper frame 101 and the lower frame 102. The mounting portion 106 is located between the upper frame 101 and the lower frame 102. The mounting portion 106 is used to be clamped between the upper frame 101 and the lower frame 102 and connected and fixed by the mounting ring 107. The mounting ring 107 fixes the mounting portion 106 between the upper frame 101 and the lower frame 102. It should be noted that the upper surface 104 and the lower mesh surface 105 are meshes of the same mesh number. When the upper surface 104 is not damaged, the lower mesh surface 105 at the bottom can also play a role.

[0028] When in use, the bottom vibration motor generates vibration, but when it is transmitted to the top mesh surface, it will be attenuated. The following provides a structure to increase the vibration capacity of the mesh surface: Figure 2 and Figure 3The bottom of the screen 103 is connected to a vibration assembly, which includes multiple airflow wheel vibrators 108. A main air pipe 109 is connected to the side wall of the lower frame 102. The airflow wheel vibrator 108 is driven by the airflow. The main air pipe 109 is located outside the lower frame 102 and is connected to the external air supply device. The main air pipe 109 is located inside the lower frame 102 and is connected to an air distribution ring 110. The external airflow passes through the main air pipe 109, the air distribution ring 110 and the air distribution pipe 111 once and then enters different airflow wheel vibrators 108. The airflow wheel vibrators 108 at different positions are used to increase the area where the vibration can act. Multiple air distribution pipes 111 are connected to the outer wall of the air distribution ring 110, and the other end of each air distribution pipe 111 is connected to the airflow wheel vibrator 108.

[0029] Specifically, refer to Figure 4 The mounting ring 107 includes a symmetrical arc-shaped hoop 112, which can increase the convenience of installation and disassembly. The two ends of the arc-shaped hoop 112 are connected to the mounting plate 113. The mounting ring 107 at one end is connected to the mounting rod 114 by a bolt, and the end of the mounting rod 114 is provided with a thread.

[0030] Specifically, refer to Figure 4 A boss portion 115 is provided on the mounting plate 113 on the side of the arc hoop 112 away from the mounting rod 114. The boss portion 115 protrudes outward and is used to clamp the clamping plate 116 to prevent the clamping plate 116 from falling out during use. The end of the mounting ring 107 is connected to the clamping plate 116 by bolts, and the clamping plate 116 is located inside the boss portion 115.

[0031] Specifically, refer to Figure 3 The top of the airflow wheel vibrator 108 is connected to a connecting rod 117, and the connecting rod 117 is connected to the top of the airflow wheel vibrator 108. The airflow wheel vibrator 108 transmits the vibration force to the lower mesh surface 105 through direct contact, and at the same time transmits the vibration force to the top mesh surface 104 through the top connecting rod 117, thereby improving the screening capacity of the two mesh surfaces. The connecting rod 117 passes through the lower mesh surface 105 and is connected to the mesh surface 104 at the top.

[0032] Specifically, refer to Figure 4 A linkage bar 118 is connected between the upper surface 104 and the lower surface 105. The linkage bar 118 is preferably made of elastic material and is used to maintain the synchronous vibration of the upper surface 104 and the lower surface 105.

[0033] In this embodiment, the upper mesh surface 104 and the lower mesh surface 105 have the ability to screen at the same time. When the top mesh surface 104 is damaged due to impact, the lower mesh surface 105 plays a screening role, and the external airflow drives the airflow wheel vibrator 108 to vibrate, thereby improving the screening ability. When disassembling, the petal-type arc-shaped hoop 112 facilitates the removal of the screen 103 from between the upper frame 101 and the lower frame 102.

[0034] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A screen cleaning device for a graded screening device, comprising an upper frame (101) and a lower frame (102) located at the bottom of the upper frame (101), wherein a screen (103) is connected between the upper frame (101) and the lower frame (102), characterized in that: The screen (103) comprises a mounting portion (106), an upper mesh surface (104), and a lower mesh surface (105); the mounting portion (106) is located on the outer annular surfaces of the upper mesh surface (104) and the lower mesh surface (105); a mounting ring (107) is connected between the upper frame (101) and the lower frame (102); the mounting portion (106) is located between the upper frame (101) and the lower frame (102); and the mounting ring (107) fixes the mounting portion (106) between the upper frame (101) and the lower frame (102); The bottom of the screen (103) is connected to a vibration assembly, which includes a plurality of airflow wheel vibrators (108). A main air pipe (109) is connected to the side wall of the lower frame (102). One end of the main air pipe (109) located outside the lower frame (102) is connected to an external air supply device. One end of the main air pipe (109) located inside the lower frame (102) is connected to an air distribution ring (110). Multiple air distribution pipes (111) are connected to the outer wall of the air distribution ring (110), and the other end of each of the air distribution pipes (111) is connected to the airflow wheel vibrator (108).

2. A screen cleaning device for a grading screening device according to claim 1, characterized in that: The mounting ring (107) comprises a symmetrical arc-shaped hoop (112), both ends of which are connected to mounting plates (113), and one end of the mounting ring (107) is connected to a mounting rod (114) via a bolt, and the end of the mounting rod (114) is provided with a thread.

3. A screen cleaning device for a graded screening device according to claim 2, characterized in that: A boss portion (115) is provided on the mounting plate (113) on the side of the arc hoop (112) away from the mounting rod (114), and a clamping plate (116) is connected to the end of the mounting ring (107) via bolts, and the clamping plate (116) is located inside the boss portion (115).

4. The screen cleaning device of the grading screening equipment according to claim 1, characterized in that: The top of the airflow wheel vibrator (108) is connected to a connecting rod (117), which passes through the lower mesh surface (105) and is connected to the upper mesh surface (104) at the top.

5. The screen cleaning device of the grading screening equipment according to claim 1, characterized in that: A linkage bar (118) is connected between the upper net surface (104) and the lower net surface (105).

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